firewire.c revision 111074
1/* 2 * Copyright (c) 1998-2002 Katsushi Kobayashi and Hidetoshi Shimokawa 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the acknowledgement as bellow: 15 * 16 * This product includes software developed by K. Kobayashi and H. Shimokawa 17 * 18 * 4. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 23 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 24 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 25 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 26 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 27 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 29 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 30 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 31 * POSSIBILITY OF SUCH DAMAGE. 32 * 33 * $FreeBSD: head/sys/dev/firewire/firewire.c 111074 2003-02-18 09:39:48Z simokawa $ 34 * 35 */ 36 37#include <sys/param.h> 38#include <sys/systm.h> 39#include <sys/types.h> 40#include <sys/mbuf.h> 41#include <sys/socket.h> 42#include <sys/socketvar.h> 43 44#include <sys/kernel.h> 45#include <sys/malloc.h> 46#include <sys/conf.h> 47#include <sys/uio.h> 48#include <sys/sysctl.h> 49 50#include <machine/cpufunc.h> /* for rdtsc proto for clock.h below */ 51#include <machine/clock.h> 52 53#include <sys/bus.h> /* used by smbus and newbus */ 54 55#include <dev/firewire/firewire.h> 56#include <dev/firewire/firewirereg.h> 57#include <dev/firewire/fwmem.h> 58#include <dev/firewire/iec13213.h> 59#include <dev/firewire/iec68113.h> 60 61int firewire_debug=0, try_bmr=1; 62SYSCTL_INT(_debug, OID_AUTO, firewire_debug, CTLFLAG_RW, &firewire_debug, 0, 63 "FireWire driver debug flag"); 64SYSCTL_NODE(_hw, OID_AUTO, firewire, CTLFLAG_RD, 0, "FireWire Subsystem"); 65SYSCTL_INT(_hw_firewire, OID_AUTO, try_bmr, CTLFLAG_RW, &try_bmr, 0, 66 "Try to be a bus manager"); 67 68MALLOC_DEFINE(M_FW, "firewire", "FireWire"); 69MALLOC_DEFINE(M_FWXFER, "fw_xfer", "XFER/FireWire"); 70 71#define FW_MAXASYRTY 4 72#define FW_MAXDEVRCNT 4 73 74#define XFER_TIMEOUT 0 75 76devclass_t firewire_devclass; 77 78static int firewire_match __P((device_t)); 79static int firewire_attach __P((device_t)); 80static int firewire_detach __P((device_t)); 81#if 0 82static int firewire_shutdown __P((device_t)); 83#endif 84static device_t firewire_add_child __P((device_t, int, const char *, int)); 85static void fw_try_bmr __P((void *)); 86static void fw_try_bmr_callback __P((struct fw_xfer *)); 87static void fw_asystart __P((struct fw_xfer *)); 88static int fw_get_tlabel __P((struct firewire_comm *, struct fw_xfer *)); 89static void fw_bus_probe __P((struct firewire_comm *)); 90static void fw_bus_explore __P((struct firewire_comm *)); 91static void fw_bus_explore_callback __P((struct fw_xfer *)); 92static void fw_attach_dev __P((struct firewire_comm *)); 93#ifdef FW_VMACCESS 94static void fw_vmaccess __P((struct fw_xfer *)); 95#endif 96struct fw_xfer *asyreqq __P((struct firewire_comm *, u_int8_t, u_int8_t, u_int8_t, 97 u_int32_t, u_int32_t, void (*)__P((struct fw_xfer *)))); 98static int fw_bmr __P((struct firewire_comm *)); 99 100static device_method_t firewire_methods[] = { 101 /* Device interface */ 102 DEVMETHOD(device_probe, firewire_match), 103 DEVMETHOD(device_attach, firewire_attach), 104 DEVMETHOD(device_detach, firewire_detach), 105 DEVMETHOD(device_suspend, bus_generic_suspend), 106 DEVMETHOD(device_resume, bus_generic_resume), 107 DEVMETHOD(device_shutdown, bus_generic_shutdown), 108 109 /* Bus interface */ 110 DEVMETHOD(bus_add_child, firewire_add_child), 111 DEVMETHOD(bus_print_child, bus_generic_print_child), 112 113 { 0, 0 } 114}; 115char linkspeed[7][0x10]={"S100","S200","S400","S800","S1600","S3200","Unknown"}; 116 117#define MAX_GAPHOP 16 118u_int gap_cnt[] = {1, 1, 4, 6, 9, 12, 14, 17, 119 20, 23, 25, 28, 31, 33, 36, 39, 42}; 120 121extern struct cdevsw firewire_cdevsw; 122 123static driver_t firewire_driver = { 124 "firewire", 125 firewire_methods, 126 sizeof(struct firewire_softc), 127}; 128 129/* 130 * Lookup fwdev by node id. 131 */ 132struct fw_device * 133fw_noderesolve_nodeid(struct firewire_comm *fc, int dst) 134{ 135 struct fw_device *fwdev; 136 int s; 137 138 s = splfw(); 139 STAILQ_FOREACH(fwdev, &fc->devices, link) 140 if (fwdev->dst == dst) 141 break; 142 splx(s); 143 144 if(fwdev == NULL) return NULL; 145 if(fwdev->status == FWDEVINVAL) return NULL; 146 return fwdev; 147} 148 149/* 150 * Lookup fwdev by EUI64. 151 */ 152struct fw_device * 153fw_noderesolve_eui64(struct firewire_comm *fc, struct fw_eui64 *eui) 154{ 155 struct fw_device *fwdev; 156 int s; 157 158 s = splfw(); 159 STAILQ_FOREACH(fwdev, &fc->devices, link) 160 if (FW_EUI64_EQUAL(fwdev->eui, *eui)) 161 break; 162 splx(s); 163 164 if(fwdev == NULL) return NULL; 165 if(fwdev->status == FWDEVINVAL) return NULL; 166 return fwdev; 167} 168 169/* 170 * Async. request procedure for userland application. 171 */ 172int 173fw_asyreq(struct firewire_comm *fc, int sub, struct fw_xfer *xfer) 174{ 175 int err = 0; 176 struct fw_xferq *xferq; 177 int tl = 0, len; 178 struct fw_pkt *fp; 179 int tcode; 180 struct tcode_info *info; 181 182 if(xfer == NULL) return EINVAL; 183 if(xfer->send.len > MAXREC(fc->maxrec)){ 184 printf("send.len > maxrec\n"); 185 return EINVAL; 186 } 187 if(xfer->act.hand == NULL){ 188 printf("act.hand == NULL\n"); 189 return EINVAL; 190 } 191 fp = (struct fw_pkt *)xfer->send.buf; 192 193 tcode = fp->mode.common.tcode & 0xf; 194 info = &fc->tcode[tcode]; 195 if (info->flag == 0) { 196 printf("invalid tcode=%d\n", tcode); 197 return EINVAL; 198 } 199 if (info->flag & FWTI_REQ) 200 xferq = fc->atq; 201 else 202 xferq = fc->ats; 203 len = info->hdr_len; 204 if (info->flag & FWTI_BLOCK_STR) 205 len += ntohs(fp->mode.stream.len); 206 else if (info->flag & FWTI_BLOCK_ASY) 207 len += ntohs(fp->mode.rresb.len); 208 if( len > xfer->send.len ){ 209 printf("len(%d) > send.len(%d) (tcode=%d)\n", 210 len, xfer->send.len, tcode); 211 return EINVAL; 212 } 213 xfer->send.len = len; 214 215 if(xferq->start == NULL){ 216 printf("xferq->start == NULL\n"); 217 return EINVAL; 218 } 219 if(!(xferq->queued < xferq->maxq)){ 220 device_printf(fc->bdev, "Discard a packet (queued=%d)\n", 221 xferq->queued); 222 return EINVAL; 223 } 224 225 226 if (info->flag & FWTI_TLABEL) { 227 if((tl = fw_get_tlabel(fc, xfer)) == -1 ) 228 return EIO; 229 fp->mode.hdr.tlrt = tl << 2; 230 } 231 232 xfer->tl = tl; 233 xfer->tcode = tcode; 234 xfer->resp = 0; 235 xfer->fc = fc; 236 xfer->q = xferq; 237 xfer->act_type = FWACT_XFER; 238 xfer->retry_req = fw_asybusy; 239 240 fw_asystart(xfer); 241 return err; 242} 243/* 244 * Wakeup blocked process. 245 */ 246void 247fw_asy_callback(struct fw_xfer *xfer){ 248 wakeup(xfer); 249 return; 250} 251/* 252 * Postpone to later retry. 253 */ 254void fw_asybusy(struct fw_xfer *xfer){ 255#if 1 256 printf("fw_asybusy\n"); 257#endif 258#if XFER_TIMEOUT 259 untimeout(fw_xfer_timeout, (void *)xfer, xfer->ch); 260#endif 261/* 262 xfer->ch = timeout((timeout_t *)fw_asystart, (void *)xfer, 20000); 263*/ 264 DELAY(20000); 265 fw_asystart(xfer); 266 return; 267} 268#if XFER_TIMEOUT 269/* 270 * Post timeout for async. request. 271 */ 272void 273fw_xfer_timeout(void *arg) 274{ 275 int s; 276 struct fw_xfer *xfer; 277 278 xfer = (struct fw_xfer *)arg; 279 printf("fw_xfer_timeout status=%d resp=%d\n", xfer->state, xfer->resp); 280 /* XXX set error code */ 281 s = splfw(); 282 xfer->act.hand(xfer); 283 splx(s); 284} 285#endif 286/* 287 * Async. request with given xfer structure. 288 */ 289static void 290fw_asystart(struct fw_xfer *xfer) 291{ 292 struct firewire_comm *fc = xfer->fc; 293 int s; 294 if(xfer->retry++ >= fc->max_asyretry){ 295 xfer->resp = EBUSY; 296 xfer->state = FWXF_BUSY; 297 xfer->act.hand(xfer); 298 return; 299 } 300#if 0 /* XXX allow bus explore packets only after bus rest */ 301 if (fc->status < FWBUSEXPLORE) { 302 xfer->resp = EAGAIN; 303 xfer->state = FWXF_BUSY; 304 if (xfer->act.hand != NULL) 305 xfer->act.hand(xfer); 306 return; 307 } 308#endif 309 s = splfw(); 310 xfer->state = FWXF_INQ; 311 STAILQ_INSERT_TAIL(&xfer->q->q, xfer, link); 312 xfer->q->queued ++; 313 splx(s); 314 /* XXX just queue for mbuf */ 315 if (xfer->mbuf == NULL) 316 xfer->q->start(fc); 317#if XFER_TIMEOUT 318 if (xfer->act.hand != NULL) 319 xfer->ch = timeout(fw_xfer_timeout, (void *)xfer, hz); 320#endif 321 return; 322} 323 324static int 325firewire_match( device_t dev ) 326{ 327 device_set_desc(dev, "IEEE1394(FireWire) bus"); 328 return -140; 329} 330 331static void 332firewire_xfer_timeout(struct firewire_comm *fc) 333{ 334 struct fw_xfer *xfer; 335 struct tlabel *tl; 336 struct timeval tv; 337 struct timeval split_timeout; 338 int i, s; 339 340 split_timeout.tv_sec = 6; 341 split_timeout.tv_usec = 0; 342 343 microtime(&tv); 344 timevalsub(&tv, &split_timeout); 345 346 s = splfw(); 347 for (i = 0; i < 0x40; i ++) { 348 while ((tl = STAILQ_FIRST(&fc->tlabels[i])) != NULL) { 349 xfer = tl->xfer; 350 if (timevalcmp(&xfer->tv, &tv, >)) 351 /* the rests are newer than this */ 352 break; 353 device_printf(fc->bdev, 354 "split transaction timeout dst=0x%x tl=0x%x\n", 355 xfer->dst, i); 356 xfer->resp = ETIMEDOUT; 357 STAILQ_REMOVE_HEAD(&fc->tlabels[i], link); 358 switch (xfer->act_type) { 359 case FWACT_XFER: 360 fw_xfer_done(xfer); 361 break; 362 default: 363 /* ??? */ 364 fw_xfer_free(xfer); 365 break; 366 } 367 } 368 } 369 splx(s); 370} 371 372static void 373firewire_watchdog(void *arg) 374{ 375 struct firewire_comm *fc; 376 377 fc = (struct firewire_comm *)arg; 378 firewire_xfer_timeout(fc); 379 fc->timeout(fc); 380 callout_reset(&fc->timeout_callout, hz, 381 (void *)firewire_watchdog, (void *)fc); 382} 383 384/* 385 * The attach routine. 386 */ 387static int 388firewire_attach( device_t dev ) 389{ 390 int i, unitmask, mn; 391 struct firewire_softc *sc = device_get_softc(dev); 392 device_t pa = device_get_parent(dev); 393 struct firewire_comm *fc; 394 dev_t d; 395 396 fc = (struct firewire_comm *)device_get_softc(pa); 397 sc->fc = fc; 398 fc->status = -1; 399 400 unitmask = UNIT2MIN(device_get_unit(dev)); 401 402 if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA; 403 for ( i = 0 ; i < fc->nisodma ; i++ ){ 404 mn = unitmask | i; 405 /* XXX device name should be improved */ 406 d = make_dev(&firewire_cdevsw, unit2minor(mn), 407 UID_ROOT, GID_OPERATOR, 0660, 408 "fw%x", mn); 409#if __FreeBSD_version >= 500000 410 if (i == 0) 411 sc->dev = d; 412 else 413 dev_depends(sc->dev, d); 414#else 415 sc->dev[i] = d; 416#endif 417 } 418 d = make_dev(&firewire_cdevsw, unit2minor(unitmask | FWMEM_FLAG), 419 UID_ROOT, GID_OPERATOR, 0660, 420 "fwmem%d", device_get_unit(dev)); 421#if __FreeBSD_version >= 500000 422 dev_depends(sc->dev, d); 423#else 424 sc->dev[i] = d; 425#endif 426#if __FreeBSD_version >= 500000 427#define CALLOUT_INIT(x) callout_init(x, 0 /* mpsafe */) 428#else 429#define CALLOUT_INIT(x) callout_init(x) 430#endif 431 CALLOUT_INIT(&sc->fc->timeout_callout); 432 CALLOUT_INIT(&sc->fc->bmr_callout); 433 CALLOUT_INIT(&sc->fc->retry_probe_callout); 434 CALLOUT_INIT(&sc->fc->busprobe_callout); 435 436 callout_reset(&sc->fc->timeout_callout, hz, 437 (void *)firewire_watchdog, (void *)sc->fc); 438 439 /* Locate our children */ 440 bus_generic_probe(dev); 441 442 /* launch attachement of the added children */ 443 bus_generic_attach(dev); 444 445#if 1 446 /* bus_reset */ 447 fc->ibr(fc); 448#endif 449 450 return 0; 451} 452 453/* 454 * Attach it as child. 455 */ 456static device_t 457firewire_add_child(device_t dev, int order, const char *name, int unit) 458{ 459 device_t child; 460 struct firewire_softc *sc; 461 462 sc = (struct firewire_softc *)device_get_softc(dev); 463 child = device_add_child(dev, name, unit); 464 if (child) { 465 device_set_ivars(child, sc->fc); 466 device_probe_and_attach(child); 467 } 468 469 return child; 470} 471 472/* 473 * Dettach it. 474 */ 475static int 476firewire_detach( device_t dev ) 477{ 478 struct firewire_softc *sc; 479 struct csrdir *csrd, *next; 480 481 sc = (struct firewire_softc *)device_get_softc(dev); 482 483#if __FreeBSD_version >= 500000 484 destroy_dev(sc->dev); 485#else 486 { 487 int j; 488 for (j = 0 ; j < sc->fc->nisodma + 1; j++) 489 destroy_dev(sc->dev[j]); 490 } 491#endif 492 /* XXX xfree_free and untimeout on all xfers */ 493 for (csrd = SLIST_FIRST(&sc->fc->csrfree); csrd != NULL; csrd = next) { 494 next = SLIST_NEXT(csrd, link); 495 free(csrd, M_FW); 496 } 497 callout_stop(&sc->fc->timeout_callout); 498 callout_stop(&sc->fc->bmr_callout); 499 callout_stop(&sc->fc->retry_probe_callout); 500 callout_stop(&sc->fc->busprobe_callout); 501 free(sc->fc->topology_map, M_FW); 502 free(sc->fc->speed_map, M_FW); 503 bus_generic_detach(dev); 504 return(0); 505} 506#if 0 507static int 508firewire_shutdown( device_t dev ) 509{ 510 return 0; 511} 512#endif 513 514 515static void 516fw_xferq_drain(struct fw_xferq *xferq) 517{ 518 struct fw_xfer *xfer; 519 520 while ((xfer = STAILQ_FIRST(&xferq->q)) != NULL) { 521 STAILQ_REMOVE_HEAD(&xferq->q, link); 522 xfer->resp = EAGAIN; 523 switch (xfer->act_type) { 524 case FWACT_XFER: 525 fw_xfer_done(xfer); 526 break; 527 default: 528 /* ??? */ 529 fw_xfer_free(xfer); 530 break; 531 } 532 } 533} 534 535void 536fw_drain_txq(struct firewire_comm *fc) 537{ 538 int i; 539 540 fw_xferq_drain(fc->atq); 541 fw_xferq_drain(fc->ats); 542 for(i = 0; i < fc->nisodma; i++) 543 fw_xferq_drain(fc->it[i]); 544} 545 546/* 547 * Called after bus reset. 548 */ 549void 550fw_busreset(struct firewire_comm *fc) 551{ 552 int i; 553 554 switch(fc->status){ 555 case FWBUSMGRELECT: 556 callout_stop(&fc->bmr_callout); 557 break; 558 default: 559 break; 560 } 561 fc->status = FWBUSRESET; 562 CSRARC(fc, STATE_CLEAR) 563 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 564 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 565 CSRARC(fc, NODE_IDS) = 0x3f; 566 567 CSRARC(fc, TOPO_MAP + 8) = 0; 568 fc->irm = -1; 569 570 fc->max_node = -1; 571 572 for(i = 2; i < 0x100/4 - 2 ; i++){ 573 CSRARC(fc, SPED_MAP + i * 4) = 0; 574 } 575 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 576 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 577 CSRARC(fc, RESET_START) = 0; 578 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0; 579 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19; 580 CSRARC(fc, CYCLE_TIME) = 0x0; 581 CSRARC(fc, BUS_TIME) = 0x0; 582 CSRARC(fc, BUS_MGR_ID) = 0x3f; 583 CSRARC(fc, BANDWIDTH_AV) = 4915; 584 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff; 585 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff; 586 CSRARC(fc, IP_CHANNELS) = (1 << 31); 587 588 CSRARC(fc, CONF_ROM) = 0x04 << 24; 589 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */ 590 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 | 591 1 << 28 | 0xff << 16 | 0x09 << 8; 592 CSRARC(fc, CONF_ROM + 0xc) = 0; 593 594/* DV depend CSRs see blue book */ 595 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON; 596 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON; 597 598 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 ); 599 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 600} 601 602/* Call once after reboot */ 603void fw_init(struct firewire_comm *fc) 604{ 605 int i; 606 struct csrdir *csrd; 607#ifdef FW_VMACCESS 608 struct fw_xfer *xfer; 609 struct fw_bind *fwb; 610#endif 611 612 fc->max_asyretry = FW_MAXASYRTY; 613 614 fc->arq->queued = 0; 615 fc->ars->queued = 0; 616 fc->atq->queued = 0; 617 fc->ats->queued = 0; 618 619 fc->arq->psize = PAGE_SIZE; 620 fc->ars->psize = PAGE_SIZE; 621 fc->atq->psize = 0; 622 fc->ats->psize = 0; 623 624 625 fc->arq->buf = NULL; 626 fc->ars->buf = NULL; 627 fc->atq->buf = NULL; 628 fc->ats->buf = NULL; 629 630 fc->arq->flag = FWXFERQ_PACKET; 631 fc->ars->flag = FWXFERQ_PACKET; 632 fc->atq->flag = FWXFERQ_PACKET; 633 fc->ats->flag = FWXFERQ_PACKET; 634 635 STAILQ_INIT(&fc->atq->q); 636 STAILQ_INIT(&fc->ats->q); 637 638 for( i = 0 ; i < fc->nisodma ; i ++ ){ 639 fc->it[i]->queued = 0; 640 fc->ir[i]->queued = 0; 641 642 fc->it[i]->start = NULL; 643 fc->ir[i]->start = NULL; 644 645 fc->it[i]->buf = NULL; 646 fc->ir[i]->buf = NULL; 647 648 fc->it[i]->flag = FWXFERQ_STREAM; 649 fc->ir[i]->flag = FWXFERQ_STREAM; 650 651 STAILQ_INIT(&fc->it[i]->q); 652 STAILQ_INIT(&fc->ir[i]->q); 653 654 STAILQ_INIT(&fc->it[i]->binds); 655 STAILQ_INIT(&fc->ir[i]->binds); 656 } 657 658 fc->arq->maxq = FWMAXQUEUE; 659 fc->ars->maxq = FWMAXQUEUE; 660 fc->atq->maxq = FWMAXQUEUE; 661 fc->ats->maxq = FWMAXQUEUE; 662 663 for( i = 0 ; i < fc->nisodma ; i++){ 664 fc->ir[i]->maxq = FWMAXQUEUE; 665 fc->it[i]->maxq = FWMAXQUEUE; 666 } 667/* Initialize csr registers */ 668 fc->topology_map = (struct fw_topology_map *)malloc( 669 sizeof(struct fw_topology_map), 670 M_FW, M_NOWAIT | M_ZERO); 671 fc->speed_map = (struct fw_speed_map *)malloc( 672 sizeof(struct fw_speed_map), 673 M_FW, M_NOWAIT | M_ZERO); 674 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16; 675 CSRARC(fc, TOPO_MAP + 4) = 1; 676 CSRARC(fc, SPED_MAP) = 0x3f1 << 16; 677 CSRARC(fc, SPED_MAP + 4) = 1; 678 679 STAILQ_INIT(&fc->devices); 680 STAILQ_INIT(&fc->pending); 681 682/* Initialize csr ROM work space */ 683 SLIST_INIT(&fc->ongocsr); 684 SLIST_INIT(&fc->csrfree); 685 for( i = 0 ; i < FWMAXCSRDIR ; i++){ 686 csrd = (struct csrdir *) malloc(sizeof(struct csrdir), M_FW,M_NOWAIT); 687 if(csrd == NULL) break; 688 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 689 } 690 691/* Initialize Async handlers */ 692 STAILQ_INIT(&fc->binds); 693 for( i = 0 ; i < 0x40 ; i++){ 694 STAILQ_INIT(&fc->tlabels[i]); 695 } 696 697/* DV depend CSRs see blue book */ 698#if 0 699 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */ 700 CSRARC(fc, oPCR) = 0x8000007a; 701 for(i = 4 ; i < 0x7c/4 ; i+=4){ 702 CSRARC(fc, i + oPCR) = 0x8000007a; 703 } 704 705 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */ 706 CSRARC(fc, iPCR) = 0x803f0000; 707 for(i = 4 ; i < 0x7c/4 ; i+=4){ 708 CSRARC(fc, i + iPCR) = 0x0; 709 } 710#endif 711 712 713#ifdef FW_VMACCESS 714 xfer = fw_xfer_alloc(); 715 if(xfer == NULL) return; 716 717 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_FW, M_NOWAIT); 718 if(fwb == NULL){ 719 fw_xfer_free(xfer); 720 } 721 xfer->act.hand = fw_vmaccess; 722 xfer->act_type = FWACT_XFER; 723 xfer->fc = fc; 724 xfer->sc = NULL; 725 726 fwb->start_hi = 0x2; 727 fwb->start_lo = 0; 728 fwb->addrlen = 0xffffffff; 729 fwb->xfer = xfer; 730 fw_bindadd(fc, fwb); 731#endif 732} 733 734/* 735 * To lookup binded process from IEEE1394 address. 736 */ 737struct fw_bind * 738fw_bindlookup(struct firewire_comm *fc, u_int32_t dest_hi, u_int32_t dest_lo) 739{ 740 struct fw_bind *tfw; 741 for(tfw = STAILQ_FIRST(&fc->binds) ; tfw != NULL ; 742 tfw = STAILQ_NEXT(tfw, fclist)){ 743 if(tfw->xfer->act_type != FWACT_NULL && 744 tfw->start_hi == dest_hi && 745 tfw->start_lo <= dest_lo && 746 (tfw->start_lo + tfw->addrlen) > dest_lo){ 747 return(tfw); 748 } 749 } 750 return(NULL); 751} 752 753/* 754 * To bind IEEE1394 address block to process. 755 */ 756int 757fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb) 758{ 759 struct fw_bind *tfw, *tfw2 = NULL; 760 int err = 0; 761 tfw = STAILQ_FIRST(&fc->binds); 762 if(tfw == NULL){ 763 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 764 goto out; 765 } 766 if((tfw->start_hi > fwb->start_hi) || 767 (tfw->start_hi == fwb->start_hi && 768 (tfw->start_lo > (fwb->start_lo + fwb->addrlen)))){ 769 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 770 goto out; 771 } 772 for(; tfw != NULL; tfw = STAILQ_NEXT(tfw, fclist)){ 773 if((tfw->start_hi < fwb->start_hi) || 774 (tfw->start_hi == fwb->start_hi && 775 (tfw->start_lo + tfw->addrlen) < fwb->start_lo)){ 776 tfw2 = STAILQ_NEXT(tfw, fclist); 777 if(tfw2 == NULL) 778 break; 779 if((tfw2->start_hi > fwb->start_hi) || 780 (tfw2->start_hi == fwb->start_hi && 781 tfw2->start_lo > (fwb->start_lo + fwb->addrlen))){ 782 break; 783 }else{ 784 err = EBUSY; 785 goto out; 786 } 787 } 788 } 789 if(tfw != NULL){ 790 STAILQ_INSERT_AFTER(&fc->binds, tfw, fwb, fclist); 791 }else{ 792 STAILQ_INSERT_TAIL(&fc->binds, fwb, fclist); 793 } 794out: 795 if(!err && fwb->xfer->act_type == FWACT_CH){ 796 STAILQ_INSERT_HEAD(&fc->ir[fwb->xfer->sub]->binds, fwb, chlist); 797 } 798 return err; 799} 800 801/* 802 * To free IEEE1394 address block. 803 */ 804int 805fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb) 806{ 807 int s; 808 809 s = splfw(); 810 /* shall we check the existance? */ 811 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist); 812 splx(s); 813 if (fwb->xfer) 814 fw_xfer_free(fwb->xfer); 815 816 return 0; 817} 818 819/* 820 * To free transaction label. 821 */ 822static void 823fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer) 824{ 825 struct tlabel *tl; 826 int s = splfw(); 827 828 for( tl = STAILQ_FIRST(&fc->tlabels[xfer->tl]); tl != NULL; 829 tl = STAILQ_NEXT(tl, link)){ 830 if(tl->xfer == xfer){ 831 STAILQ_REMOVE(&fc->tlabels[xfer->tl], tl, tlabel, link); 832 free(tl, M_FW); 833 splx(s); 834 return; 835 } 836 } 837 splx(s); 838 return; 839} 840 841/* 842 * To obtain XFER structure by transaction label. 843 */ 844static struct fw_xfer * 845fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel) 846{ 847 struct fw_xfer *xfer; 848 struct tlabel *tl; 849 int s = splfw(); 850 851 for( tl = STAILQ_FIRST(&fc->tlabels[tlabel]); tl != NULL; 852 tl = STAILQ_NEXT(tl, link)){ 853 if(tl->xfer->dst == node){ 854 xfer = tl->xfer; 855 splx(s); 856 if (firewire_debug > 2) 857 printf("fw_tl2xfer: found tl=%d\n", tlabel); 858 return(xfer); 859 } 860 } 861 if (firewire_debug > 1) 862 printf("fw_tl2xfer: not found tl=%d\n", tlabel); 863 splx(s); 864 return(NULL); 865} 866 867/* 868 * To allocate IEEE1394 XFER structure. 869 */ 870struct fw_xfer * 871fw_xfer_alloc(struct malloc_type *type) 872{ 873 struct fw_xfer *xfer; 874 875 xfer = malloc(sizeof(struct fw_xfer), type, M_NOWAIT | M_ZERO); 876 if (xfer == NULL) 877 return xfer; 878 879 microtime(&xfer->tv); 880 xfer->sub = -1; 881 xfer->malloc = type; 882 883 return xfer; 884} 885 886/* 887 * IEEE1394 XFER post process. 888 */ 889void 890fw_xfer_done(struct fw_xfer *xfer) 891{ 892 if (xfer->act.hand == NULL) 893 return; 894 895#if XFER_TIMEOUT 896 untimeout(fw_xfer_timeout, (void *)xfer, xfer->ch); 897#endif 898 899 if (xfer->fc->status != FWBUSRESET) 900 xfer->act.hand(xfer); 901 else { 902 printf("fw_xfer_done: pending\n"); 903 if (xfer->fc != NULL) 904 STAILQ_INSERT_TAIL(&xfer->fc->pending, xfer, link); 905 else 906 panic("fw_xfer_done: why xfer->fc is NULL?"); 907 } 908} 909 910/* 911 * To free IEEE1394 XFER structure. 912 */ 913void 914fw_xfer_free( struct fw_xfer* xfer) 915{ 916 int s; 917 if(xfer == NULL ) return; 918 if(xfer->state == FWXF_INQ){ 919 printf("fw_xfer_free FWXF_INQ\n"); 920 s = splfw(); 921 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link); 922 xfer->q->queued --; 923 splx(s); 924 } 925 if(xfer->fc != NULL){ 926 if(xfer->state == FWXF_START){ 927#if 0 /* this could happen if we call fwohci_arcv() before fwohci_txd() */ 928 printf("fw_xfer_free FWXF_START\n"); 929#endif 930 s = splfw(); 931 xfer->q->drain(xfer->fc, xfer); 932 splx(s); 933 } 934 } 935 if(xfer->send.buf != NULL){ 936 free(xfer->send.buf, M_FW); 937 } 938 if(xfer->recv.buf != NULL){ 939 free(xfer->recv.buf, M_FW); 940 } 941 if(xfer->fc != NULL){ 942 fw_tl_free(xfer->fc, xfer); 943 } 944 free(xfer, xfer->malloc); 945} 946 947static void 948fw_asy_callback_free(struct fw_xfer *xfer) 949{ 950#if 0 951 printf("asyreq done state=%d resp=%d\n", 952 xfer->state, xfer->resp); 953#endif 954 fw_xfer_free(xfer); 955} 956 957/* 958 * To configure PHY. 959 */ 960static void 961fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count) 962{ 963 struct fw_xfer *xfer; 964 struct fw_pkt *fp; 965 966 fc->status = FWBUSPHYCONF; 967 968#if 0 969 DELAY(100000); 970#endif 971 xfer = fw_xfer_alloc(M_FWXFER); 972 xfer->send.len = 12; 973 xfer->send.off = 0; 974 xfer->fc = fc; 975 xfer->retry_req = fw_asybusy; 976 xfer->act.hand = fw_asy_callback_free; 977 978 xfer->send.buf = malloc(sizeof(u_int32_t), 979 M_FW, M_NOWAIT | M_ZERO); 980 fp = (struct fw_pkt *)xfer->send.buf; 981 fp->mode.ld[1] = 0; 982 if (root_node >= 0) 983 fp->mode.ld[1] |= htonl((root_node & 0x3f) << 24 | 1 << 23); 984 if (gap_count >= 0) 985 fp->mode.ld[1] |= htonl(1 << 22 | (gap_count & 0x3f) << 16); 986 fp->mode.ld[2] = ~fp->mode.ld[1]; 987/* XXX Dangerous, how to pass PHY packet to device driver */ 988 fp->mode.common.tcode |= FWTCODE_PHY; 989 990 if (firewire_debug) 991 printf("send phy_config root_node=%d gap_count=%d\n", 992 root_node, gap_count); 993 fw_asyreq(fc, -1, xfer); 994} 995 996#if 0 997/* 998 * Dump self ID. 999 */ 1000static void 1001fw_print_sid(u_int32_t sid) 1002{ 1003 union fw_self_id *s; 1004 s = (union fw_self_id *) &sid; 1005 printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d" 1006 " p0:%d p1:%d p2:%d i:%d m:%d\n", 1007 s->p0.phy_id, s->p0.link_active, s->p0.gap_count, 1008 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender, 1009 s->p0.power_class, s->p0.port0, s->p0.port1, 1010 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets); 1011} 1012#endif 1013 1014/* 1015 * To receive self ID. 1016 */ 1017void fw_sidrcv(struct firewire_comm* fc, caddr_t buf, u_int len, u_int off) 1018{ 1019 u_int32_t *p, *sid = (u_int32_t *)(buf + off); 1020 union fw_self_id *self_id; 1021 u_int i, j, node, c_port = 0, i_branch = 0; 1022 1023 fc->sid_cnt = len /(sizeof(u_int32_t) * 2); 1024 fc->status = FWBUSINIT; 1025 fc->max_node = fc->nodeid & 0x3f; 1026 CSRARC(fc, NODE_IDS) = ((u_int32_t)fc->nodeid) << 16; 1027 fc->status = FWBUSCYMELECT; 1028 fc->topology_map->crc_len = 2; 1029 fc->topology_map->generation ++; 1030 fc->topology_map->self_id_count = 0; 1031 fc->topology_map->node_count = 0; 1032 fc->speed_map->generation ++; 1033 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4; 1034 self_id = &fc->topology_map->self_id[0]; 1035 for(i = 0; i < fc->sid_cnt; i ++){ 1036 if (sid[1] != ~sid[0]) { 1037 printf("fw_sidrcv: invalid self-id packet\n"); 1038 sid += 2; 1039 continue; 1040 } 1041 *self_id = *((union fw_self_id *)sid); 1042 fc->topology_map->crc_len++; 1043 if(self_id->p0.sequel == 0){ 1044 fc->topology_map->node_count ++; 1045 c_port = 0; 1046#if 0 1047 fw_print_sid(sid[0]); 1048#endif 1049 node = self_id->p0.phy_id; 1050 if(fc->max_node < node){ 1051 fc->max_node = self_id->p0.phy_id; 1052 } 1053 /* XXX I'm not sure this is the right speed_map */ 1054 fc->speed_map->speed[node][node] 1055 = self_id->p0.phy_speed; 1056 for (j = 0; j < node; j ++) { 1057 fc->speed_map->speed[j][node] 1058 = fc->speed_map->speed[node][j] 1059 = min(fc->speed_map->speed[j][j], 1060 self_id->p0.phy_speed); 1061 } 1062 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) && 1063 (self_id->p0.link_active && self_id->p0.contender)) { 1064 fc->irm = self_id->p0.phy_id; 1065 } 1066 if(self_id->p0.port0 >= 0x2){ 1067 c_port++; 1068 } 1069 if(self_id->p0.port1 >= 0x2){ 1070 c_port++; 1071 } 1072 if(self_id->p0.port2 >= 0x2){ 1073 c_port++; 1074 } 1075 } 1076 if(c_port > 2){ 1077 i_branch += (c_port - 2); 1078 } 1079 sid += 2; 1080 self_id++; 1081 fc->topology_map->self_id_count ++; 1082 } 1083 device_printf(fc->bdev, "%d nodes", fc->max_node + 1); 1084 /* CRC */ 1085 fc->topology_map->crc = fw_crc16( 1086 (u_int32_t *)&fc->topology_map->generation, 1087 fc->topology_map->crc_len * 4); 1088 fc->speed_map->crc = fw_crc16( 1089 (u_int32_t *)&fc->speed_map->generation, 1090 fc->speed_map->crc_len * 4); 1091 /* byteswap and copy to CSR */ 1092 p = (u_int32_t *)fc->topology_map; 1093 for (i = 0; i <= fc->topology_map->crc_len; i++) 1094 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++); 1095 p = (u_int32_t *)fc->speed_map; 1096 CSRARC(fc, SPED_MAP) = htonl(*p++); 1097 CSRARC(fc, SPED_MAP + 4) = htonl(*p++); 1098 /* don't byte-swap u_int8_t array */ 1099 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4); 1100 1101 fc->max_hop = fc->max_node - i_branch; 1102#if 1 1103 printf(", maxhop <= %d", fc->max_hop); 1104#endif 1105 1106 if(fc->irm == -1 ){ 1107 printf(", Not found IRM capable node"); 1108 }else{ 1109 printf(", cable IRM = %d", fc->irm); 1110 if (fc->irm == fc->nodeid) 1111 printf(" (me)"); 1112 } 1113 printf("\n"); 1114 1115 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) { 1116 if (fc->irm == ((CSRARC(fc, NODE_IDS) >> 16 ) & 0x3f)) { 1117 fc->status = FWBUSMGRDONE; 1118 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm); 1119 } else { 1120 fc->status = FWBUSMGRELECT; 1121 callout_reset(&fc->bmr_callout, hz/8, 1122 (void *)fw_try_bmr, (void *)fc); 1123 } 1124 } else { 1125 fc->status = FWBUSMGRDONE; 1126#if 0 1127 device_printf(fc->bdev, "BMR = %x\n", 1128 CSRARC(fc, BUS_MGR_ID)); 1129#endif 1130 } 1131 free(buf, M_FW); 1132 if(fc->irm == ((CSRARC(fc, NODE_IDS) >> 16 ) & 0x3f)){ 1133 /* I am BMGR */ 1134 fw_bmr(fc); 1135 } 1136 callout_reset(&fc->busprobe_callout, hz/4, 1137 (void *)fw_bus_probe, (void *)fc); 1138} 1139 1140/* 1141 * To probe devices on the IEEE1394 bus. 1142 */ 1143static void 1144fw_bus_probe(struct firewire_comm *fc) 1145{ 1146 int s; 1147 struct fw_device *fwdev, *next; 1148 1149 s = splfw(); 1150 fc->status = FWBUSEXPLORE; 1151 fc->retry_count = 0; 1152 1153/* 1154 * Invalidate all devices, just after bus reset. Devices 1155 * to be removed has not been seen longer time. 1156 */ 1157 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1158 next = STAILQ_NEXT(fwdev, link); 1159 if (fwdev->status != FWDEVINVAL) { 1160 fwdev->status = FWDEVINVAL; 1161 fwdev->rcnt = 0; 1162 } else if(fwdev->rcnt < FW_MAXDEVRCNT) { 1163 fwdev->rcnt ++; 1164 } else { 1165 STAILQ_REMOVE(&fc->devices, fwdev, fw_device, link); 1166 free(fwdev, M_FW); 1167 } 1168 } 1169 fc->ongonode = 0; 1170 fc->ongoaddr = CSRROMOFF; 1171 fc->ongodev = NULL; 1172 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1173 fw_bus_explore(fc); 1174 splx(s); 1175} 1176 1177/* 1178 * To collect device informations on the IEEE1394 bus. 1179 */ 1180static void 1181fw_bus_explore(struct firewire_comm *fc ) 1182{ 1183 int err = 0; 1184 struct fw_device *fwdev, *pfwdev, *tfwdev; 1185 u_int32_t addr; 1186 struct fw_xfer *xfer; 1187 struct fw_pkt *fp; 1188 1189 if(fc->status != FWBUSEXPLORE) 1190 return; 1191 1192loop: 1193 if(fc->ongonode == fc->nodeid) fc->ongonode++; 1194 1195 if(fc->ongonode > fc->max_node) goto done; 1196 if(fc->ongonode >= 0x3f) goto done; 1197 1198 /* check link */ 1199 /* XXX we need to check phy_id first */ 1200 if (!fc->topology_map->self_id[fc->ongonode].p0.link_active) { 1201 if (firewire_debug) 1202 printf("node%d: link down\n", fc->ongonode); 1203 fc->ongonode++; 1204 goto loop; 1205 } 1206 1207 if(fc->ongoaddr <= CSRROMOFF && 1208 fc->ongoeui.hi == 0xffffffff && 1209 fc->ongoeui.lo == 0xffffffff ){ 1210 fc->ongoaddr = CSRROMOFF; 1211 addr = 0xf0000000 | fc->ongoaddr; 1212 }else if(fc->ongoeui.hi == 0xffffffff ){ 1213 fc->ongoaddr = CSRROMOFF + 0xc; 1214 addr = 0xf0000000 | fc->ongoaddr; 1215 }else if(fc->ongoeui.lo == 0xffffffff ){ 1216 fc->ongoaddr = CSRROMOFF + 0x10; 1217 addr = 0xf0000000 | fc->ongoaddr; 1218 }else if(fc->ongodev == NULL){ 1219 STAILQ_FOREACH(fwdev, &fc->devices, link) 1220 if (FW_EUI64_EQUAL(fwdev->eui, fc->ongoeui)) 1221 break; 1222 if(fwdev != NULL){ 1223 fwdev->dst = fc->ongonode; 1224 fwdev->status = FWDEVATTACHED; 1225 fc->ongonode++; 1226 fc->ongoaddr = CSRROMOFF; 1227 fc->ongodev = NULL; 1228 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1229 goto loop; 1230 } 1231 fwdev = malloc(sizeof(struct fw_device), M_FW, M_NOWAIT); 1232 if(fwdev == NULL) 1233 return; 1234 fwdev->fc = fc; 1235 fwdev->rommax = 0; 1236 fwdev->dst = fc->ongonode; 1237 fwdev->eui.hi = fc->ongoeui.hi; fwdev->eui.lo = fc->ongoeui.lo; 1238 fwdev->status = FWDEVINIT; 1239#if 0 1240 fwdev->speed = CSRARC(fc, SPED_MAP + 8 + fc->ongonode / 4) 1241 >> ((3 - (fc->ongonode % 4)) * 8); 1242#else 1243 fwdev->speed = fc->speed_map->speed[fc->nodeid][fc->ongonode]; 1244#endif 1245 1246 pfwdev = NULL; 1247 STAILQ_FOREACH(tfwdev, &fc->devices, link) { 1248 if (tfwdev->eui.hi > fwdev->eui.hi || 1249 (tfwdev->eui.hi == fwdev->eui.hi && 1250 tfwdev->eui.lo > fwdev->eui.lo)) 1251 break; 1252 pfwdev = tfwdev; 1253 } 1254 if (pfwdev == NULL) 1255 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link); 1256 else 1257 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link); 1258 1259 device_printf(fc->bdev, "New %s device ID:%08x%08x\n", 1260 linkspeed[fwdev->speed], 1261 fc->ongoeui.hi, fc->ongoeui.lo); 1262 1263 fc->ongodev = fwdev; 1264 fc->ongoaddr = CSRROMOFF; 1265 addr = 0xf0000000 | fc->ongoaddr; 1266 }else{ 1267 addr = 0xf0000000 | fc->ongoaddr; 1268 } 1269#if 0 1270 xfer = asyreqq(fc, FWSPD_S100, 0, 0, 1271 ((FWLOCALBUS | fc->ongonode) << 16) | 0xffff , addr, 1272 fw_bus_explore_callback); 1273 if(xfer == NULL) goto done; 1274#else 1275 xfer = fw_xfer_alloc(M_FWXFER); 1276 if(xfer == NULL){ 1277 goto done; 1278 } 1279 xfer->send.len = 16; 1280 xfer->spd = 0; 1281 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 1282 if(xfer->send.buf == NULL){ 1283 fw_xfer_free( xfer); 1284 return; 1285 } 1286 1287 xfer->send.off = 0; 1288 fp = (struct fw_pkt *)xfer->send.buf; 1289 fp->mode.rreqq.dest_hi = htons(0xffff); 1290 fp->mode.rreqq.tlrt = 0; 1291 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1292 fp->mode.rreqq.pri = 0; 1293 fp->mode.rreqq.src = 0; 1294 xfer->dst = FWLOCALBUS | fc->ongonode; 1295 fp->mode.rreqq.dst = htons(xfer->dst); 1296 fp->mode.rreqq.dest_lo = htonl(addr); 1297 xfer->act.hand = fw_bus_explore_callback; 1298 1299 if (firewire_debug) 1300 printf("node%d: explore addr=0x%x\n", 1301 fc->ongonode, fc->ongoaddr); 1302 err = fw_asyreq(fc, -1, xfer); 1303 if(err){ 1304 fw_xfer_free( xfer); 1305 return; 1306 } 1307#endif 1308 return; 1309done: 1310 /* fw_attach_devs */ 1311 fc->status = FWBUSEXPDONE; 1312 if (firewire_debug) 1313 printf("bus_explore done\n"); 1314 fw_attach_dev(fc); 1315 return; 1316 1317} 1318 1319/* Portable Async. request read quad */ 1320struct fw_xfer * 1321asyreqq(struct firewire_comm *fc, u_int8_t spd, u_int8_t tl, u_int8_t rt, 1322 u_int32_t addr_hi, u_int32_t addr_lo, 1323 void (*hand) __P((struct fw_xfer*))) 1324{ 1325 struct fw_xfer *xfer; 1326 struct fw_pkt *fp; 1327 int err; 1328 1329 xfer = fw_xfer_alloc(M_FWXFER); 1330 if(xfer == NULL){ 1331 return NULL; 1332 } 1333 xfer->send.len = 16; 1334 xfer->spd = spd; /* XXX:min(spd, fc->spd) */ 1335 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 1336 if(xfer->send.buf == NULL){ 1337 fw_xfer_free( xfer); 1338 return NULL; 1339 } 1340 1341 xfer->send.off = 0; 1342 fp = (struct fw_pkt *)xfer->send.buf; 1343 fp->mode.rreqq.dest_hi = htons(addr_hi & 0xffff); 1344 if(tl & FWP_TL_VALID){ 1345 fp->mode.rreqq.tlrt = (tl & 0x3f) << 2; 1346 }else{ 1347 fp->mode.rreqq.tlrt = 0; 1348 } 1349 fp->mode.rreqq.tlrt |= rt & 0x3; 1350 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1351 fp->mode.rreqq.pri = 0; 1352 fp->mode.rreqq.src = 0; 1353 xfer->dst = addr_hi >> 16; 1354 fp->mode.rreqq.dst = htons(xfer->dst); 1355 fp->mode.rreqq.dest_lo = htonl(addr_lo); 1356 xfer->act.hand = hand; 1357 1358 err = fw_asyreq(fc, -1, xfer); 1359 if(err){ 1360 fw_xfer_free( xfer); 1361 return NULL; 1362 } 1363 return xfer; 1364} 1365 1366/* 1367 * Callback for the IEEE1394 bus information collection. 1368 */ 1369static void 1370fw_bus_explore_callback(struct fw_xfer *xfer) 1371{ 1372 struct firewire_comm *fc; 1373 struct fw_pkt *sfp,*rfp; 1374 struct csrhdr *chdr; 1375 struct csrdir *csrd; 1376 struct csrreg *csrreg; 1377 u_int32_t offset; 1378 1379 1380 if(xfer == NULL) { 1381 printf("xfer == NULL\n"); 1382 return; 1383 } 1384 fc = xfer->fc; 1385 1386 if (firewire_debug) 1387 printf("node%d: callback addr=0x%x\n", 1388 fc->ongonode, fc->ongoaddr); 1389 1390 if(xfer->resp != 0){ 1391 printf("node%d: resp=%d addr=0x%x\n", 1392 fc->ongonode, xfer->resp, fc->ongoaddr); 1393 fc->retry_count++; 1394 goto nextnode; 1395 } 1396 1397 if(xfer->send.buf == NULL){ 1398 printf("node%d: send.buf=NULL addr=0x%x\n", 1399 fc->ongonode, fc->ongoaddr); 1400 fc->retry_count++; 1401 goto nextnode; 1402 } 1403 sfp = (struct fw_pkt *)xfer->send.buf; 1404 1405 if(xfer->recv.buf == NULL){ 1406 printf("node%d: recv.buf=NULL addr=0x%x\n", 1407 fc->ongonode, fc->ongoaddr); 1408 fc->retry_count++; 1409 goto nextnode; 1410 } 1411 rfp = (struct fw_pkt *)xfer->recv.buf; 1412#if 0 1413 { 1414 u_int32_t *qld; 1415 int i; 1416 qld = (u_int32_t *)xfer->recv.buf; 1417 printf("len:%d\n", xfer->recv.len); 1418 for( i = 0 ; i <= xfer->recv.len && i < 32; i+= 4){ 1419 printf("0x%08x ", ntohl(rfp->mode.ld[i/4])); 1420 if((i % 16) == 15) printf("\n"); 1421 } 1422 if((i % 16) != 15) printf("\n"); 1423 } 1424#endif 1425 if(fc->ongodev == NULL){ 1426 if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 | CSRROMOFF))){ 1427 rfp->mode.rresq.data = ntohl(rfp->mode.rresq.data); 1428 chdr = (struct csrhdr *)(&rfp->mode.rresq.data); 1429/* If CSR is minimal confinguration, more investgation is not needed. */ 1430 if(chdr->info_len == 1){ 1431 if (firewire_debug) 1432 printf("node%d: minimal config\n", 1433 fc->ongonode); 1434 goto nextnode; 1435 }else{ 1436 fc->ongoaddr = CSRROMOFF + 0xc; 1437 } 1438 }else if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 |(CSRROMOFF + 0xc)))){ 1439 fc->ongoeui.hi = ntohl(rfp->mode.rresq.data); 1440 fc->ongoaddr = CSRROMOFF + 0x10; 1441 }else if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 |(CSRROMOFF + 0x10)))){ 1442 fc->ongoeui.lo = ntohl(rfp->mode.rresq.data); 1443 if (fc->ongoeui.hi == 0 && fc->ongoeui.lo == 0) { 1444 if (firewire_debug) 1445 printf("node%d: eui64 is zero.\n", 1446 fc->ongonode); 1447 goto nextnode; 1448 } 1449 fc->ongoaddr = CSRROMOFF; 1450 } 1451 }else{ 1452 fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4] = ntohl(rfp->mode.rresq.data); 1453 if(fc->ongoaddr > fc->ongodev->rommax){ 1454 fc->ongodev->rommax = fc->ongoaddr; 1455 } 1456 csrd = SLIST_FIRST(&fc->ongocsr); 1457 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1458 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1459 offset = CSRROMOFF; 1460 }else{ 1461 chdr = (struct csrhdr *)&fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]; 1462 offset = csrd->off; 1463 } 1464 if(fc->ongoaddr > (CSRROMOFF + 0x14) && fc->ongoaddr != offset){ 1465 csrreg = (struct csrreg *)&fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4]; 1466 if( csrreg->key == 0x81 || csrreg->key == 0xd1){ 1467 csrd = SLIST_FIRST(&fc->csrfree); 1468 if(csrd == NULL){ 1469 goto nextnode; 1470 }else{ 1471 csrd->ongoaddr = fc->ongoaddr; 1472 fc->ongoaddr += csrreg->val * 4; 1473 csrd->off = fc->ongoaddr; 1474 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1475 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1476 goto nextaddr; 1477 } 1478 } 1479 } 1480 fc->ongoaddr += 4; 1481 if(((fc->ongoaddr - offset)/4 > chdr->crc_len) && 1482 (fc->ongodev->rommax < 0x414)){ 1483 if(fc->ongodev->rommax <= 0x414){ 1484 csrd = SLIST_FIRST(&fc->csrfree); 1485 if(csrd == NULL) goto nextnode; 1486 csrd->off = fc->ongoaddr; 1487 csrd->ongoaddr = fc->ongoaddr; 1488 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1489 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1490 } 1491 goto nextaddr; 1492 } 1493 1494 while(((fc->ongoaddr - offset)/4 > chdr->crc_len)){ 1495 if(csrd == NULL){ 1496 goto nextnode; 1497 }; 1498 fc->ongoaddr = csrd->ongoaddr + 4; 1499 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1500 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1501 csrd = SLIST_FIRST(&fc->ongocsr); 1502 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1503 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1504 offset = CSRROMOFF; 1505 }else{ 1506 chdr = (struct csrhdr *)&(fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]); 1507 offset = csrd->off; 1508 } 1509 } 1510 if((fc->ongoaddr - CSRROMOFF) > CSRROMSIZE){ 1511 goto nextnode; 1512 } 1513 } 1514nextaddr: 1515 fw_xfer_free( xfer); 1516 fw_bus_explore(fc); 1517 return; 1518nextnode: 1519 fw_xfer_free( xfer); 1520 fc->ongonode++; 1521/* housekeeping work space */ 1522 fc->ongoaddr = CSRROMOFF; 1523 fc->ongodev = NULL; 1524 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1525 while((csrd = SLIST_FIRST(&fc->ongocsr)) != NULL){ 1526 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1527 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1528 } 1529 fw_bus_explore(fc); 1530 return; 1531} 1532 1533/* 1534 * To obtain CSR register values. 1535 */ 1536u_int32_t 1537getcsrdata(struct fw_device *fwdev, u_int8_t key) 1538{ 1539 int i; 1540 struct csrhdr *chdr; 1541 struct csrreg *creg; 1542 chdr = (struct csrhdr *)&fwdev->csrrom[0]; 1543 for( i = chdr->info_len + 4; i <= fwdev->rommax - CSRROMOFF; i+=4){ 1544 creg = (struct csrreg *)&fwdev->csrrom[i/4]; 1545 if(creg->key == key){ 1546 return (u_int32_t)creg->val; 1547 } 1548 } 1549 return 0; 1550} 1551 1552/* 1553 * To attach sub-devices layer onto IEEE1394 bus. 1554 */ 1555static void 1556fw_attach_dev(struct firewire_comm *fc) 1557{ 1558 struct fw_device *fwdev; 1559 struct fw_xfer *xfer; 1560 int i, err; 1561 device_t *devlistp; 1562 int devcnt; 1563 struct firewire_dev_comm *fdc; 1564 u_int32_t spec, ver; 1565 1566 STAILQ_FOREACH(fwdev, &fc->devices, link) { 1567 if(fwdev->status == FWDEVINIT){ 1568 spec = getcsrdata(fwdev, CSRKEY_SPEC); 1569 if(spec == 0) 1570 continue; 1571 ver = getcsrdata(fwdev, CSRKEY_VER); 1572 if(ver == 0) 1573 continue; 1574 fwdev->maxrec = (fwdev->csrrom[2] >> 12) & 0xf; 1575 1576 device_printf(fc->bdev, "Device "); 1577 switch(spec){ 1578 case CSRVAL_ANSIT10: 1579 switch(ver){ 1580 case CSRVAL_T10SBP2: 1581 printf("SBP-II"); 1582 break; 1583 default: 1584 break; 1585 } 1586 break; 1587 case CSRVAL_1394TA: 1588 switch(ver){ 1589 case CSR_PROTAVC: 1590 printf("AV/C"); 1591 break; 1592 case CSR_PROTCAL: 1593 printf("CAL"); 1594 break; 1595 case CSR_PROTEHS: 1596 printf("EHS"); 1597 break; 1598 case CSR_PROTHAVI: 1599 printf("HAVi"); 1600 break; 1601 case CSR_PROTCAM104: 1602 printf("1394 Cam 1.04"); 1603 break; 1604 case CSR_PROTCAM120: 1605 printf("1394 Cam 1.20"); 1606 break; 1607 case CSR_PROTCAM130: 1608 printf("1394 Cam 1.30"); 1609 break; 1610 case CSR_PROTDPP: 1611 printf("1394 Direct print"); 1612 break; 1613 case CSR_PROTIICP: 1614 printf("Industrial & Instrument"); 1615 break; 1616 default: 1617 printf("unknown 1394TA"); 1618 break; 1619 } 1620 break; 1621 default: 1622 printf("unknown spec"); 1623 break; 1624 } 1625 fwdev->status = FWDEVATTACHED; 1626 printf("\n"); 1627 } 1628 } 1629 err = device_get_children(fc->bdev, &devlistp, &devcnt); 1630 if( err != 0 ) 1631 return; 1632 for( i = 0 ; i < devcnt ; i++){ 1633 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 1634 fdc = device_get_softc(devlistp[i]); 1635 if (fdc->post_explore != NULL) 1636 fdc->post_explore(fdc); 1637 } 1638 } 1639 free(devlistp, M_TEMP); 1640 1641 /* call pending handlers */ 1642 i = 0; 1643 while ((xfer = STAILQ_FIRST(&fc->pending))) { 1644 STAILQ_REMOVE_HEAD(&fc->pending, link); 1645 i++; 1646 if (xfer->act.hand) 1647 xfer->act.hand(xfer); 1648 } 1649 if (i > 0) 1650 printf("fw_attach_dev: %d pending handlers called\n", i); 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 */ 1664static int 1665fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer) 1666{ 1667 u_int i; 1668 struct tlabel *tl, *tmptl; 1669 int s; 1670 static u_int32_t label = 0; 1671 1672 s = splfw(); 1673 for( i = 0 ; i < 0x40 ; i ++){ 1674 label = (label + 1) & 0x3f; 1675 for(tmptl = STAILQ_FIRST(&fc->tlabels[label]); 1676 tmptl != NULL; tmptl = STAILQ_NEXT(tmptl, link)){ 1677 if(tmptl->xfer->dst == xfer->dst) break; 1678 } 1679 if(tmptl == NULL) { 1680 tl = malloc(sizeof(struct tlabel),M_FW,M_NOWAIT); 1681 if (tl == NULL) { 1682 splx(s); 1683 return (-1); 1684 } 1685 tl->xfer = xfer; 1686 STAILQ_INSERT_TAIL(&fc->tlabels[label], tl, link); 1687 splx(s); 1688 if (firewire_debug > 1) 1689 printf("fw_get_tlabel: dst=%d tl=%d\n", 1690 xfer->dst, label); 1691 return(label); 1692 } 1693 } 1694 splx(s); 1695 1696 printf("fw_get_tlabel: no free tlabel\n"); 1697 return(-1); 1698} 1699 1700/* 1701 * Generic packet receving process. 1702 */ 1703void 1704fw_rcv(struct firewire_comm* fc, caddr_t buf, u_int len, u_int sub, u_int off, u_int spd) 1705{ 1706 struct fw_pkt *fp, *resfp; 1707 struct fw_xfer *xfer; 1708 struct fw_bind *bind; 1709 struct firewire_softc *sc; 1710 int s; 1711#if 0 1712 { 1713 u_int32_t *qld; 1714 int i; 1715 qld = (u_int32_t *)buf; 1716 printf("spd %d len:%d\n", spd, len); 1717 for( i = 0 ; i <= len && i < 32; i+= 4){ 1718 printf("0x%08x ", ntohl(qld[i/4])); 1719 if((i % 16) == 15) printf("\n"); 1720 } 1721 if((i % 16) != 15) printf("\n"); 1722 } 1723#endif 1724 fp = (struct fw_pkt *)(buf + off); 1725 switch(fp->mode.common.tcode){ 1726 case FWTCODE_WRES: 1727 case FWTCODE_RRESQ: 1728 case FWTCODE_RRESB: 1729 case FWTCODE_LRES: 1730 xfer = fw_tl2xfer(fc, ntohs(fp->mode.hdr.src), 1731 fp->mode.hdr.tlrt >> 2); 1732 if(xfer == NULL) { 1733 printf("fw_rcv: unknown response " 1734 "tcode=%d src=0x%x tl=0x%x rt=%d data=0x%x\n", 1735 fp->mode.common.tcode, 1736 ntohs(fp->mode.hdr.src), 1737 fp->mode.hdr.tlrt >> 2, 1738 fp->mode.hdr.tlrt & 3, 1739 fp->mode.rresq.data); 1740#if 1 1741 printf("try ad-hoc work around!!\n"); 1742 xfer = fw_tl2xfer(fc, ntohs(fp->mode.hdr.src), 1743 (fp->mode.hdr.tlrt >> 2)^3); 1744 if (xfer == NULL) { 1745 printf("no use...\n"); 1746 goto err; 1747 } 1748#else 1749 goto err; 1750#endif 1751 } 1752 switch(xfer->act_type){ 1753 case FWACT_XFER: 1754 if((xfer->sub >= 0) && 1755 ((fc->ir[xfer->sub]->flag & FWXFERQ_MODEMASK ) == 0)){ 1756 xfer->resp = EINVAL; 1757 fw_xfer_done(xfer); 1758 goto err; 1759 } 1760 xfer->recv.len = len; 1761 xfer->recv.off = off; 1762 xfer->recv.buf = buf; 1763 xfer->resp = 0; 1764 fw_xfer_done(xfer); 1765 return; 1766 break; 1767 case FWACT_CH: 1768 default: 1769 goto err; 1770 break; 1771 } 1772 break; 1773 case FWTCODE_WREQQ: 1774 case FWTCODE_WREQB: 1775 case FWTCODE_RREQQ: 1776 case FWTCODE_RREQB: 1777 case FWTCODE_LREQ: 1778 bind = fw_bindlookup(fc, ntohs(fp->mode.rreqq.dest_hi), 1779 ntohl(fp->mode.rreqq.dest_lo)); 1780 if(bind == NULL){ 1781#if __FreeBSD_version >= 500000 1782 printf("Unknown service addr 0x%08x:0x%08x tcode=%x\n", 1783#else 1784 printf("Unknown service addr 0x%08x:0x%08lx tcode=%x\n", 1785#endif 1786 ntohs(fp->mode.rreqq.dest_hi), 1787 ntohl(fp->mode.rreqq.dest_lo), 1788 fp->mode.common.tcode); 1789 if (fc->status == FWBUSRESET) { 1790 printf("fw_rcv: cannot respond(bus reset)!\n"); 1791 goto err; 1792 } 1793 xfer = fw_xfer_alloc(M_FWXFER); 1794 if(xfer == NULL){ 1795 return; 1796 } 1797 xfer->spd = spd; 1798 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 1799 resfp = (struct fw_pkt *)xfer->send.buf; 1800 switch(fp->mode.common.tcode){ 1801 case FWTCODE_WREQQ: 1802 case FWTCODE_WREQB: 1803 resfp->mode.hdr.tcode = FWTCODE_WRES; 1804 xfer->send.len = 12; 1805 break; 1806 case FWTCODE_RREQQ: 1807 resfp->mode.hdr.tcode = FWTCODE_RRESQ; 1808 xfer->send.len = 16; 1809 break; 1810 case FWTCODE_RREQB: 1811 resfp->mode.hdr.tcode = FWTCODE_RRESB; 1812 xfer->send.len = 16; 1813 break; 1814 case FWTCODE_LREQ: 1815 resfp->mode.hdr.tcode = FWTCODE_LRES; 1816 xfer->send.len = 16; 1817 break; 1818 } 1819 resfp->mode.hdr.dst = fp->mode.hdr.src; 1820 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt; 1821 resfp->mode.hdr.pri = fp->mode.hdr.pri; 1822 resfp->mode.rresb.rtcode = 7; 1823 resfp->mode.rresb.extcode = 0; 1824 resfp->mode.rresb.len = 0; 1825/* 1826 xfer->act.hand = fw_asy_callback; 1827*/ 1828 xfer->act.hand = fw_xfer_free; 1829 if(fw_asyreq(fc, -1, xfer)){ 1830 fw_xfer_free( xfer); 1831 return; 1832 } 1833 goto err; 1834 } 1835 switch(bind->xfer->act_type){ 1836 case FWACT_XFER: 1837 xfer = fw_xfer_alloc(M_FWXFER); 1838 if(xfer == NULL) goto err; 1839 xfer->fc = bind->xfer->fc; 1840 xfer->sc = bind->xfer->sc; 1841 xfer->recv.buf = buf; 1842 xfer->recv.len = len; 1843 xfer->recv.off = off; 1844 xfer->spd = spd; 1845 xfer->act.hand = bind->xfer->act.hand; 1846 if (fc->status != FWBUSRESET) 1847 xfer->act.hand(xfer); 1848 else 1849 STAILQ_INSERT_TAIL(&fc->pending, xfer, link); 1850 return; 1851 break; 1852 case FWACT_CH: 1853 if(fc->ir[bind->xfer->sub]->queued >= 1854 fc->ir[bind->xfer->sub]->maxq){ 1855 device_printf(fc->bdev, 1856 "Discard a packet %x %d\n", 1857 bind->xfer->sub, 1858 fc->ir[bind->xfer->sub]->queued); 1859 goto err; 1860 } 1861 xfer = fw_xfer_alloc(M_FWXFER); 1862 if(xfer == NULL) goto err; 1863 xfer->recv.buf = buf; 1864 xfer->recv.len = len; 1865 xfer->recv.off = off; 1866 xfer->spd = spd; 1867 s = splfw(); 1868 fc->ir[bind->xfer->sub]->queued++; 1869 STAILQ_INSERT_TAIL(&fc->ir[bind->xfer->sub]->q, xfer, link); 1870 splx(s); 1871 1872 wakeup((caddr_t)fc->ir[bind->xfer->sub]); 1873 1874 return; 1875 break; 1876 default: 1877 goto err; 1878 break; 1879 } 1880 break; 1881 case FWTCODE_STREAM: 1882 { 1883 struct fw_xferq *xferq; 1884 1885 xferq = fc->ir[sub]; 1886#if 0 1887 printf("stream rcv dma %d len %d off %d spd %d\n", 1888 sub, len, off, spd); 1889#endif 1890 if(xferq->queued >= xferq->maxq) { 1891 printf("receive queue is full\n"); 1892 goto err; 1893 } 1894 xfer = fw_xfer_alloc(M_FWXFER); 1895 if(xfer == NULL) goto err; 1896 xfer->recv.buf = buf; 1897 xfer->recv.len = len; 1898 xfer->recv.off = off; 1899 xfer->spd = spd; 1900 s = splfw(); 1901 xferq->queued++; 1902 STAILQ_INSERT_TAIL(&xferq->q, xfer, link); 1903 splx(s); 1904 sc = device_get_softc(fc->bdev); 1905#if __FreeBSD_version >= 500000 1906 if (SEL_WAITING(&xferq->rsel)) 1907#else 1908 if (&xferq->rsel.si_pid != 0) 1909#endif 1910 selwakeup(&xferq->rsel); 1911 if (xferq->flag & FWXFERQ_WAKEUP) { 1912 xferq->flag &= ~FWXFERQ_WAKEUP; 1913 wakeup((caddr_t)xferq); 1914 } 1915 if (xferq->flag & FWXFERQ_HANDLER) { 1916 xferq->hand(xferq); 1917 } 1918 return; 1919 break; 1920 } 1921 default: 1922 printf("fw_rcv: unknow tcode\n"); 1923 break; 1924 } 1925err: 1926 free(buf, M_FW); 1927} 1928 1929/* 1930 * Post process for Bus Manager election process. 1931 */ 1932static void 1933fw_try_bmr_callback(struct fw_xfer *xfer) 1934{ 1935 struct fw_pkt *rfp; 1936 struct firewire_comm *fc; 1937 int bmr; 1938 1939 if (xfer == NULL) 1940 return; 1941 fc = xfer->fc; 1942 if (xfer->resp != 0) 1943 goto error; 1944 if (xfer->send.buf == NULL) 1945 goto error; 1946 if (xfer->recv.buf == NULL) 1947 goto error; 1948 rfp = (struct fw_pkt *)xfer->recv.buf; 1949 if (rfp->mode.lres.rtcode != FWRCODE_COMPLETE) 1950 goto error; 1951 1952 bmr = ntohl(rfp->mode.lres.payload[0]); 1953 if (bmr == 0x3f) 1954 bmr = fc->nodeid; 1955 1956 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f); 1957 device_printf(fc->bdev, "new bus manager %d ", 1958 CSRARC(fc, BUS_MGR_ID)); 1959 if(bmr == fc->nodeid){ 1960 printf("(me)\n"); 1961 fw_bmr(fc); 1962 }else{ 1963 printf("\n"); 1964 } 1965error: 1966 fw_xfer_free(xfer); 1967} 1968 1969/* 1970 * To candidate Bus Manager election process. 1971 */ 1972static void 1973fw_try_bmr(void *arg) 1974{ 1975 struct fw_xfer *xfer; 1976 struct firewire_comm *fc = (struct firewire_comm *)arg; 1977 struct fw_pkt *fp; 1978 int err = 0; 1979 1980 xfer = fw_xfer_alloc(M_FWXFER); 1981 if(xfer == NULL){ 1982 return; 1983 } 1984 xfer->send.len = 24; 1985 xfer->spd = 0; 1986 xfer->send.buf = malloc(24, M_FW, M_NOWAIT); 1987 if(xfer->send.buf == NULL){ 1988 fw_xfer_free( xfer); 1989 return; 1990 } 1991 1992 fc->status = FWBUSMGRELECT; 1993 1994 xfer->send.off = 0; 1995 fp = (struct fw_pkt *)xfer->send.buf; 1996 fp->mode.lreq.dest_hi = htons(0xffff); 1997 fp->mode.lreq.tlrt = 0; 1998 fp->mode.lreq.tcode = FWTCODE_LREQ; 1999 fp->mode.lreq.pri = 0; 2000 fp->mode.lreq.src = 0; 2001 fp->mode.lreq.len = htons(8); 2002 fp->mode.lreq.extcode = htons(FW_LREQ_CMPSWAP); 2003 xfer->dst = FWLOCALBUS | fc->irm; 2004 fp->mode.lreq.dst = htons(xfer->dst); 2005 fp->mode.lreq.dest_lo = htonl(0xf0000000 | BUS_MGR_ID); 2006 fp->mode.lreq.payload[0] = htonl(0x3f); 2007 fp->mode.lreq.payload[1] = htonl(fc->nodeid); 2008 xfer->act_type = FWACT_XFER; 2009 xfer->act.hand = fw_try_bmr_callback; 2010 2011 err = fw_asyreq(fc, -1, xfer); 2012 if(err){ 2013 fw_xfer_free( xfer); 2014 return; 2015 } 2016 return; 2017} 2018 2019#ifdef FW_VMACCESS 2020/* 2021 * Software implementation for physical memory block access. 2022 * XXX:Too slow, usef for debug purpose only. 2023 */ 2024static void 2025fw_vmaccess(struct fw_xfer *xfer){ 2026 struct fw_pkt *rfp, *sfp = NULL; 2027 u_int32_t *ld = (u_int32_t *)(xfer->recv.buf + xfer->recv.off); 2028 2029 printf("vmaccess spd:%2x len:%03x %d data:%08x %08x %08x %08x\n", 2030 xfer->spd, xfer->recv.len, xfer->recv.off, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 2031 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 2032 if(xfer->resp != 0){ 2033 fw_xfer_free( xfer); 2034 return; 2035 } 2036 if(xfer->recv.buf == NULL){ 2037 fw_xfer_free( xfer); 2038 return; 2039 } 2040 rfp = (struct fw_pkt *)xfer->recv.buf; 2041 switch(rfp->mode.hdr.tcode){ 2042 /* XXX need fix for 64bit arch */ 2043 case FWTCODE_WREQB: 2044 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2045 xfer->send.len = 12; 2046 sfp = (struct fw_pkt *)xfer->send.buf; 2047 bcopy(rfp->mode.wreqb.payload, 2048 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len)); 2049 sfp->mode.wres.tcode = FWTCODE_WRES; 2050 sfp->mode.wres.rtcode = 0; 2051 break; 2052 case FWTCODE_WREQQ: 2053 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2054 xfer->send.len = 12; 2055 sfp->mode.wres.tcode = FWTCODE_WRES; 2056 *((u_int32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data; 2057 sfp->mode.wres.rtcode = 0; 2058 break; 2059 case FWTCODE_RREQB: 2060 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_FW, M_NOWAIT); 2061 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len); 2062 sfp = (struct fw_pkt *)xfer->send.buf; 2063 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo), 2064 sfp->mode.rresb.payload, (u_int16_t)ntohs(rfp->mode.rreqb.len)); 2065 sfp->mode.rresb.tcode = FWTCODE_RRESB; 2066 sfp->mode.rresb.len = rfp->mode.rreqb.len; 2067 sfp->mode.rresb.rtcode = 0; 2068 sfp->mode.rresb.extcode = 0; 2069 break; 2070 case FWTCODE_RREQQ: 2071 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 2072 xfer->send.len = 16; 2073 sfp = (struct fw_pkt *)xfer->send.buf; 2074 sfp->mode.rresq.data = *(u_int32_t *)(ntohl(rfp->mode.rreqq.dest_lo)); 2075 sfp->mode.wres.tcode = FWTCODE_RRESQ; 2076 sfp->mode.rresb.rtcode = 0; 2077 break; 2078 default: 2079 fw_xfer_free( xfer); 2080 return; 2081 } 2082 xfer->send.off = 0; 2083 sfp->mode.hdr.dst = rfp->mode.hdr.src; 2084 xfer->dst = ntohs(rfp->mode.hdr.src); 2085 xfer->act.hand = fw_xfer_free; 2086 xfer->retry_req = fw_asybusy; 2087 2088 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt; 2089 sfp->mode.hdr.pri = 0; 2090 2091 fw_asyreq(xfer->fc, -1, xfer); 2092/**/ 2093 return; 2094} 2095#endif 2096 2097/* 2098 * CRC16 check-sum for IEEE1394 register blocks. 2099 */ 2100u_int16_t 2101fw_crc16(u_int32_t *ptr, u_int32_t len){ 2102 u_int32_t i, sum, crc = 0; 2103 int shift; 2104 len = (len + 3) & ~3; 2105 for(i = 0 ; i < len ; i+= 4){ 2106 for( shift = 28 ; shift >= 0 ; shift -= 4){ 2107 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf; 2108 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum; 2109 } 2110 crc &= 0xffff; 2111 } 2112 return((u_int16_t) crc); 2113} 2114 2115static int 2116fw_bmr(struct firewire_comm *fc) 2117{ 2118 struct fw_device fwdev; 2119 int cmstr; 2120 2121 /* XXX Assume that the current root node is cycle master capable */ 2122 cmstr = fc->max_node; 2123 /* If I am the bus manager, optimize gapcount */ 2124 if(fc->max_hop <= MAX_GAPHOP ){ 2125 fw_phy_config(fc, (fc->max_node > 0)?cmstr:-1, 2126 gap_cnt[fc->max_hop]); 2127 } 2128 /* If we are the cycle master, nothing to do */ 2129 if (cmstr == fc->nodeid) 2130 return 0; 2131 /* Bus probe has not finished, make dummy fwdev for cmstr */ 2132 bzero(&fwdev, sizeof(fwdev)); 2133 fwdev.fc = fc; 2134 fwdev.dst = cmstr; 2135 fwdev.speed = 0; 2136 fwdev.maxrec = 8; /* 512 */ 2137 fwdev.status = FWDEVINIT; 2138 /* Set cmstr bit on the cycle master */ 2139 fwmem_write_quad(&fwdev, NULL, 0/*spd*/, 2140 0xffff, 0xf0000000 | STATE_SET, 1 << 16, 2141 fw_asy_callback_free); 2142 2143 return 0; 2144} 2145 2146DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,0,0); 2147MODULE_VERSION(firewire, 1); 2148