firewire.c revision 111040
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 111040 2003-02-17 14:24:06Z 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; 398 399 unitmask = UNIT2MIN(device_get_unit(dev)); 400 401 if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA; 402 for ( i = 0 ; i < fc->nisodma ; i++ ){ 403 mn = unitmask | i; 404 /* XXX device name should be improved */ 405 d = make_dev(&firewire_cdevsw, unit2minor(mn), 406 UID_ROOT, GID_OPERATOR, 0660, 407 "fw%x", mn); 408#if __FreeBSD_version >= 500000 409 if (i == 0) 410 sc->dev = d; 411 else 412 dev_depends(sc->dev, d); 413#else 414 sc->dev[i] = d; 415#endif 416 } 417 d = make_dev(&firewire_cdevsw, unit2minor(unitmask | FWMEM_FLAG), 418 UID_ROOT, GID_OPERATOR, 0660, 419 "fwmem%d", device_get_unit(dev)); 420#if __FreeBSD_version >= 500000 421 dev_depends(sc->dev, d); 422#else 423 sc->dev[i] = d; 424#endif 425#if __FreeBSD_version >= 500000 426#define CALLOUT_INIT(x) callout_init(x, 0 /* mpsafe */) 427#else 428#define CALLOUT_INIT(x) callout_init(x) 429#endif 430 CALLOUT_INIT(&sc->fc->timeout_callout); 431 CALLOUT_INIT(&sc->fc->bmr_callout); 432 CALLOUT_INIT(&sc->fc->retry_probe_callout); 433 CALLOUT_INIT(&sc->fc->busprobe_callout); 434 435 callout_reset(&sc->fc->timeout_callout, hz, 436 (void *)firewire_watchdog, (void *)sc->fc); 437 438 /* Locate our children */ 439 bus_generic_probe(dev); 440 441 /* launch attachement of the added children */ 442 bus_generic_attach(dev); 443 444#if 1 445 /* bus_reset */ 446 fc->ibr(fc); 447#endif 448 449 return 0; 450} 451 452/* 453 * Attach it as child. 454 */ 455static device_t 456firewire_add_child(device_t dev, int order, const char *name, int unit) 457{ 458 device_t child; 459 struct firewire_softc *sc; 460 461 sc = (struct firewire_softc *)device_get_softc(dev); 462 child = device_add_child(dev, name, unit); 463 if (child) { 464 device_set_ivars(child, sc->fc); 465 device_probe_and_attach(child); 466 } 467 468 return child; 469} 470 471/* 472 * Dettach it. 473 */ 474static int 475firewire_detach( device_t dev ) 476{ 477 struct firewire_softc *sc; 478 479 sc = (struct firewire_softc *)device_get_softc(dev); 480 481#if __FreeBSD_version >= 500000 482 destroy_dev(sc->dev); 483#else 484 { 485 int j; 486 for (j = 0 ; j < sc->fc->nisodma + 1; j++) 487 destroy_dev(sc->dev[j]); 488 } 489#endif 490 /* XXX xfree_free and untimeout on all xfers */ 491 callout_stop(&sc->fc->timeout_callout); 492 callout_stop(&sc->fc->bmr_callout); 493 callout_stop(&sc->fc->retry_probe_callout); 494 callout_stop(&sc->fc->busprobe_callout); 495 free(sc->fc->topology_map, M_FW); 496 free(sc->fc->speed_map, M_FW); 497 bus_generic_detach(dev); 498 return(0); 499} 500#if 0 501static int 502firewire_shutdown( device_t dev ) 503{ 504 return 0; 505} 506#endif 507 508 509static void 510fw_xferq_drain(struct fw_xferq *xferq) 511{ 512 struct fw_xfer *xfer; 513 514 while ((xfer = STAILQ_FIRST(&xferq->q)) != NULL) { 515 STAILQ_REMOVE_HEAD(&xferq->q, link); 516 xfer->resp = EAGAIN; 517 switch (xfer->act_type) { 518 case FWACT_XFER: 519 fw_xfer_done(xfer); 520 break; 521 default: 522 /* ??? */ 523 fw_xfer_free(xfer); 524 break; 525 } 526 } 527} 528 529void 530fw_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/* 541 * Called after bus reset. 542 */ 543void 544fw_busreset(struct firewire_comm *fc) 545{ 546 int i; 547 548 switch(fc->status){ 549 case FWBUSMGRELECT: 550 callout_stop(&fc->bmr_callout); 551 break; 552 default: 553 break; 554 } 555 fc->status = FWBUSRESET; 556 CSRARC(fc, STATE_CLEAR) 557 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 558 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 559 CSRARC(fc, NODE_IDS) = 0x3f; 560 561 CSRARC(fc, TOPO_MAP + 8) = 0; 562 fc->irm = -1; 563 564 fc->max_node = -1; 565 566 for(i = 2; i < 0x100/4 - 2 ; i++){ 567 CSRARC(fc, SPED_MAP + i * 4) = 0; 568 } 569 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 570 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 571 CSRARC(fc, RESET_START) = 0; 572 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0; 573 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19; 574 CSRARC(fc, CYCLE_TIME) = 0x0; 575 CSRARC(fc, BUS_TIME) = 0x0; 576 CSRARC(fc, BUS_MGR_ID) = 0x3f; 577 CSRARC(fc, BANDWIDTH_AV) = 4915; 578 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff; 579 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff; 580 CSRARC(fc, IP_CHANNELS) = (1 << 31); 581 582 CSRARC(fc, CONF_ROM) = 0x04 << 24; 583 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */ 584 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 | 585 1 << 28 | 0xff << 16 | 0x09 << 8; 586 CSRARC(fc, CONF_ROM + 0xc) = 0; 587 588/* DV depend CSRs see blue book */ 589 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON; 590 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON; 591 592 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 ); 593 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 594} 595 596/* Call once after reboot */ 597void fw_init(struct firewire_comm *fc) 598{ 599 int i; 600 struct csrdir *csrd; 601#ifdef FW_VMACCESS 602 struct fw_xfer *xfer; 603 struct fw_bind *fwb; 604#endif 605 606 fc->max_asyretry = FW_MAXASYRTY; 607 608 fc->arq->queued = 0; 609 fc->ars->queued = 0; 610 fc->atq->queued = 0; 611 fc->ats->queued = 0; 612 613 fc->arq->psize = PAGE_SIZE; 614 fc->ars->psize = PAGE_SIZE; 615 fc->atq->psize = 0; 616 fc->ats->psize = 0; 617 618 619 fc->arq->buf = NULL; 620 fc->ars->buf = NULL; 621 fc->atq->buf = NULL; 622 fc->ats->buf = NULL; 623 624 fc->arq->flag = FWXFERQ_PACKET; 625 fc->ars->flag = FWXFERQ_PACKET; 626 fc->atq->flag = FWXFERQ_PACKET; 627 fc->ats->flag = FWXFERQ_PACKET; 628 629 STAILQ_INIT(&fc->atq->q); 630 STAILQ_INIT(&fc->ats->q); 631 632 for( i = 0 ; i < fc->nisodma ; i ++ ){ 633 fc->it[i]->queued = 0; 634 fc->ir[i]->queued = 0; 635 636 fc->it[i]->start = NULL; 637 fc->ir[i]->start = NULL; 638 639 fc->it[i]->buf = NULL; 640 fc->ir[i]->buf = NULL; 641 642 fc->it[i]->flag = FWXFERQ_STREAM; 643 fc->ir[i]->flag = FWXFERQ_STREAM; 644 645 STAILQ_INIT(&fc->it[i]->q); 646 STAILQ_INIT(&fc->ir[i]->q); 647 648 STAILQ_INIT(&fc->it[i]->binds); 649 STAILQ_INIT(&fc->ir[i]->binds); 650 } 651 652 fc->arq->maxq = FWMAXQUEUE; 653 fc->ars->maxq = FWMAXQUEUE; 654 fc->atq->maxq = FWMAXQUEUE; 655 fc->ats->maxq = FWMAXQUEUE; 656 657 for( i = 0 ; i < fc->nisodma ; i++){ 658 fc->ir[i]->maxq = FWMAXQUEUE; 659 fc->it[i]->maxq = FWMAXQUEUE; 660 } 661/* Initialize csr registers */ 662 fc->topology_map = (struct fw_topology_map *)malloc( 663 sizeof(struct fw_topology_map), 664 M_FW, M_NOWAIT | M_ZERO); 665 fc->speed_map = (struct fw_speed_map *)malloc( 666 sizeof(struct fw_speed_map), 667 M_FW, M_NOWAIT | M_ZERO); 668 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16; 669 CSRARC(fc, TOPO_MAP + 4) = 1; 670 CSRARC(fc, SPED_MAP) = 0x3f1 << 16; 671 CSRARC(fc, SPED_MAP + 4) = 1; 672 673 STAILQ_INIT(&fc->devices); 674 STAILQ_INIT(&fc->pending); 675 676/* Initialize csr ROM work space */ 677 SLIST_INIT(&fc->ongocsr); 678 SLIST_INIT(&fc->csrfree); 679 for( i = 0 ; i < FWMAXCSRDIR ; i++){ 680 csrd = (struct csrdir *) malloc(sizeof(struct csrdir), M_FW,M_NOWAIT); 681 if(csrd == NULL) break; 682 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 683 } 684 685/* Initialize Async handlers */ 686 STAILQ_INIT(&fc->binds); 687 for( i = 0 ; i < 0x40 ; i++){ 688 STAILQ_INIT(&fc->tlabels[i]); 689 } 690 691/* DV depend CSRs see blue book */ 692#if 0 693 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */ 694 CSRARC(fc, oPCR) = 0x8000007a; 695 for(i = 4 ; i < 0x7c/4 ; i+=4){ 696 CSRARC(fc, i + oPCR) = 0x8000007a; 697 } 698 699 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */ 700 CSRARC(fc, iPCR) = 0x803f0000; 701 for(i = 4 ; i < 0x7c/4 ; i+=4){ 702 CSRARC(fc, i + iPCR) = 0x0; 703 } 704#endif 705 706 707#ifdef FW_VMACCESS 708 xfer = fw_xfer_alloc(); 709 if(xfer == NULL) return; 710 711 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_FW, M_NOWAIT); 712 if(fwb == NULL){ 713 fw_xfer_free(xfer); 714 } 715 xfer->act.hand = fw_vmaccess; 716 xfer->act_type = FWACT_XFER; 717 xfer->fc = fc; 718 xfer->sc = NULL; 719 720 fwb->start_hi = 0x2; 721 fwb->start_lo = 0; 722 fwb->addrlen = 0xffffffff; 723 fwb->xfer = xfer; 724 fw_bindadd(fc, fwb); 725#endif 726} 727 728/* 729 * To lookup binded process from IEEE1394 address. 730 */ 731struct fw_bind * 732fw_bindlookup(struct firewire_comm *fc, u_int32_t dest_hi, u_int32_t dest_lo) 733{ 734 struct fw_bind *tfw; 735 for(tfw = STAILQ_FIRST(&fc->binds) ; tfw != NULL ; 736 tfw = STAILQ_NEXT(tfw, fclist)){ 737 if(tfw->xfer->act_type != FWACT_NULL && 738 tfw->start_hi == dest_hi && 739 tfw->start_lo <= dest_lo && 740 (tfw->start_lo + tfw->addrlen) > dest_lo){ 741 return(tfw); 742 } 743 } 744 return(NULL); 745} 746 747/* 748 * To bind IEEE1394 address block to process. 749 */ 750int 751fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb) 752{ 753 struct fw_bind *tfw, *tfw2 = NULL; 754 int err = 0; 755 tfw = STAILQ_FIRST(&fc->binds); 756 if(tfw == NULL){ 757 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 758 goto out; 759 } 760 if((tfw->start_hi > fwb->start_hi) || 761 (tfw->start_hi == fwb->start_hi && 762 (tfw->start_lo > (fwb->start_lo + fwb->addrlen)))){ 763 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 764 goto out; 765 } 766 for(; tfw != NULL; tfw = STAILQ_NEXT(tfw, fclist)){ 767 if((tfw->start_hi < fwb->start_hi) || 768 (tfw->start_hi == fwb->start_hi && 769 (tfw->start_lo + tfw->addrlen) < fwb->start_lo)){ 770 tfw2 = STAILQ_NEXT(tfw, fclist); 771 if(tfw2 == NULL) 772 break; 773 if((tfw2->start_hi > fwb->start_hi) || 774 (tfw2->start_hi == fwb->start_hi && 775 tfw2->start_lo > (fwb->start_lo + fwb->addrlen))){ 776 break; 777 }else{ 778 err = EBUSY; 779 goto out; 780 } 781 } 782 } 783 if(tfw != NULL){ 784 STAILQ_INSERT_AFTER(&fc->binds, tfw, fwb, fclist); 785 }else{ 786 STAILQ_INSERT_TAIL(&fc->binds, fwb, fclist); 787 } 788out: 789 if(!err && fwb->xfer->act_type == FWACT_CH){ 790 STAILQ_INSERT_HEAD(&fc->ir[fwb->xfer->sub]->binds, fwb, chlist); 791 } 792 return err; 793} 794 795/* 796 * To free IEEE1394 address block. 797 */ 798int 799fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb) 800{ 801 int s; 802 803 s = splfw(); 804 /* shall we check the existance? */ 805 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist); 806 splx(s); 807 if (fwb->xfer) 808 fw_xfer_free(fwb->xfer); 809 810 return 0; 811} 812 813/* 814 * To free transaction label. 815 */ 816static void 817fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer) 818{ 819 struct tlabel *tl; 820 int s = splfw(); 821 822 for( tl = STAILQ_FIRST(&fc->tlabels[xfer->tl]); tl != NULL; 823 tl = STAILQ_NEXT(tl, link)){ 824 if(tl->xfer == xfer){ 825 STAILQ_REMOVE(&fc->tlabels[xfer->tl], tl, tlabel, link); 826 free(tl, M_FW); 827 splx(s); 828 return; 829 } 830 } 831 splx(s); 832 return; 833} 834 835/* 836 * To obtain XFER structure by transaction label. 837 */ 838static struct fw_xfer * 839fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel) 840{ 841 struct fw_xfer *xfer; 842 struct tlabel *tl; 843 int s = splfw(); 844 845 for( tl = STAILQ_FIRST(&fc->tlabels[tlabel]); tl != NULL; 846 tl = STAILQ_NEXT(tl, link)){ 847 if(tl->xfer->dst == node){ 848 xfer = tl->xfer; 849 splx(s); 850 if (firewire_debug > 2) 851 printf("fw_tl2xfer: found tl=%d\n", tlabel); 852 return(xfer); 853 } 854 } 855 if (firewire_debug > 1) 856 printf("fw_tl2xfer: not found tl=%d\n", tlabel); 857 splx(s); 858 return(NULL); 859} 860 861/* 862 * To allocate IEEE1394 XFER structure. 863 */ 864struct fw_xfer * 865fw_xfer_alloc(struct malloc_type *type) 866{ 867 struct fw_xfer *xfer; 868 869 xfer = malloc(sizeof(struct fw_xfer), type, M_NOWAIT | M_ZERO); 870 if (xfer == NULL) 871 return xfer; 872 873 microtime(&xfer->tv); 874 xfer->sub = -1; 875 xfer->malloc = type; 876 877 return xfer; 878} 879 880/* 881 * IEEE1394 XFER post process. 882 */ 883void 884fw_xfer_done(struct fw_xfer *xfer) 885{ 886 if (xfer->act.hand == NULL) 887 return; 888 889#if XFER_TIMEOUT 890 untimeout(fw_xfer_timeout, (void *)xfer, xfer->ch); 891#endif 892 893 if (xfer->fc->status != FWBUSRESET) 894 xfer->act.hand(xfer); 895 else { 896 printf("fw_xfer_done: pending\n"); 897 if (xfer->fc != NULL) 898 STAILQ_INSERT_TAIL(&xfer->fc->pending, xfer, link); 899 else 900 panic("fw_xfer_done: why xfer->fc is NULL?"); 901 } 902} 903 904/* 905 * To free IEEE1394 XFER structure. 906 */ 907void 908fw_xfer_free( struct fw_xfer* xfer) 909{ 910 int s; 911 if(xfer == NULL ) return; 912 if(xfer->state == FWXF_INQ){ 913 printf("fw_xfer_free FWXF_INQ\n"); 914 s = splfw(); 915 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link); 916 xfer->q->queued --; 917 splx(s); 918 } 919 if(xfer->fc != NULL){ 920 if(xfer->state == FWXF_START){ 921#if 0 /* this could happen if we call fwohci_arcv() before fwohci_txd() */ 922 printf("fw_xfer_free FWXF_START\n"); 923#endif 924 s = splfw(); 925 xfer->q->drain(xfer->fc, xfer); 926 splx(s); 927 } 928 } 929 if(xfer->send.buf != NULL){ 930 free(xfer->send.buf, M_FW); 931 } 932 if(xfer->recv.buf != NULL){ 933 free(xfer->recv.buf, M_FW); 934 } 935 if(xfer->fc != NULL){ 936 fw_tl_free(xfer->fc, xfer); 937 } 938 free(xfer, xfer->malloc); 939} 940 941static void 942fw_asy_callback_free(struct fw_xfer *xfer) 943{ 944#if 0 945 printf("asyreq done state=%d resp=%d\n", 946 xfer->state, xfer->resp); 947#endif 948 fw_xfer_free(xfer); 949} 950 951/* 952 * To configure PHY. 953 */ 954static void 955fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count) 956{ 957 struct fw_xfer *xfer; 958 struct fw_pkt *fp; 959 960 fc->status = FWBUSPHYCONF; 961 962#if 0 963 DELAY(100000); 964#endif 965 xfer = fw_xfer_alloc(M_FWXFER); 966 xfer->send.len = 12; 967 xfer->send.off = 0; 968 xfer->fc = fc; 969 xfer->retry_req = fw_asybusy; 970 xfer->act.hand = fw_asy_callback_free; 971 972 xfer->send.buf = malloc(sizeof(u_int32_t), 973 M_FW, M_NOWAIT | M_ZERO); 974 fp = (struct fw_pkt *)xfer->send.buf; 975 fp->mode.ld[1] = 0; 976 if (root_node >= 0) 977 fp->mode.ld[1] |= htonl((root_node & 0x3f) << 24 | 1 << 23); 978 if (gap_count >= 0) 979 fp->mode.ld[1] |= htonl(1 << 22 | (gap_count & 0x3f) << 16); 980 fp->mode.ld[2] = ~fp->mode.ld[1]; 981/* XXX Dangerous, how to pass PHY packet to device driver */ 982 fp->mode.common.tcode |= FWTCODE_PHY; 983 984 if (firewire_debug) 985 printf("send phy_config root_node=%d gap_count=%d\n", 986 root_node, gap_count); 987 fw_asyreq(fc, -1, xfer); 988} 989 990#if 0 991/* 992 * Dump self ID. 993 */ 994static void 995fw_print_sid(u_int32_t sid) 996{ 997 union fw_self_id *s; 998 s = (union fw_self_id *) &sid; 999 printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d" 1000 " p0:%d p1:%d p2:%d i:%d m:%d\n", 1001 s->p0.phy_id, s->p0.link_active, s->p0.gap_count, 1002 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender, 1003 s->p0.power_class, s->p0.port0, s->p0.port1, 1004 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets); 1005} 1006#endif 1007 1008/* 1009 * To receive self ID. 1010 */ 1011void fw_sidrcv(struct firewire_comm* fc, caddr_t buf, u_int len, u_int off) 1012{ 1013 u_int32_t *p, *sid = (u_int32_t *)(buf + off); 1014 union fw_self_id *self_id; 1015 u_int i, j, node, c_port = 0, i_branch = 0; 1016 1017 fc->sid_cnt = len /(sizeof(u_int32_t) * 2); 1018 fc->status = FWBUSINIT; 1019 fc->max_node = fc->nodeid & 0x3f; 1020 CSRARC(fc, NODE_IDS) = ((u_int32_t)fc->nodeid) << 16; 1021 fc->status = FWBUSCYMELECT; 1022 fc->topology_map->crc_len = 2; 1023 fc->topology_map->generation ++; 1024 fc->topology_map->self_id_count = 0; 1025 fc->topology_map->node_count = 0; 1026 fc->speed_map->generation ++; 1027 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4; 1028 self_id = &fc->topology_map->self_id[0]; 1029 for(i = 0; i < fc->sid_cnt; i ++){ 1030 if (sid[1] != ~sid[0]) { 1031 printf("fw_sidrcv: invalid self-id packet\n"); 1032 sid += 2; 1033 continue; 1034 } 1035 *self_id = *((union fw_self_id *)sid); 1036 fc->topology_map->crc_len++; 1037 if(self_id->p0.sequel == 0){ 1038 fc->topology_map->node_count ++; 1039 c_port = 0; 1040#if 0 1041 fw_print_sid(sid[0]); 1042#endif 1043 node = self_id->p0.phy_id; 1044 if(fc->max_node < node){ 1045 fc->max_node = self_id->p0.phy_id; 1046 } 1047 /* XXX I'm not sure this is the right speed_map */ 1048 fc->speed_map->speed[node][node] 1049 = self_id->p0.phy_speed; 1050 for (j = 0; j < node; j ++) { 1051 fc->speed_map->speed[j][node] 1052 = fc->speed_map->speed[node][j] 1053 = min(fc->speed_map->speed[j][j], 1054 self_id->p0.phy_speed); 1055 } 1056 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) && 1057 (self_id->p0.link_active && self_id->p0.contender)) { 1058 fc->irm = self_id->p0.phy_id; 1059 } 1060 if(self_id->p0.port0 >= 0x2){ 1061 c_port++; 1062 } 1063 if(self_id->p0.port1 >= 0x2){ 1064 c_port++; 1065 } 1066 if(self_id->p0.port2 >= 0x2){ 1067 c_port++; 1068 } 1069 } 1070 if(c_port > 2){ 1071 i_branch += (c_port - 2); 1072 } 1073 sid += 2; 1074 self_id++; 1075 fc->topology_map->self_id_count ++; 1076 } 1077 device_printf(fc->bdev, "%d nodes", fc->max_node + 1); 1078 /* CRC */ 1079 fc->topology_map->crc = fw_crc16( 1080 (u_int32_t *)&fc->topology_map->generation, 1081 fc->topology_map->crc_len * 4); 1082 fc->speed_map->crc = fw_crc16( 1083 (u_int32_t *)&fc->speed_map->generation, 1084 fc->speed_map->crc_len * 4); 1085 /* byteswap and copy to CSR */ 1086 p = (u_int32_t *)fc->topology_map; 1087 for (i = 0; i <= fc->topology_map->crc_len; i++) 1088 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++); 1089 p = (u_int32_t *)fc->speed_map; 1090 CSRARC(fc, SPED_MAP) = htonl(*p++); 1091 CSRARC(fc, SPED_MAP + 4) = htonl(*p++); 1092 /* don't byte-swap u_int8_t array */ 1093 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4); 1094 1095 fc->max_hop = fc->max_node - i_branch; 1096#if 1 1097 printf(", maxhop <= %d", fc->max_hop); 1098#endif 1099 1100 if(fc->irm == -1 ){ 1101 printf(", Not found IRM capable node"); 1102 }else{ 1103 printf(", cable IRM = %d", fc->irm); 1104 if (fc->irm == fc->nodeid) 1105 printf(" (me)"); 1106 } 1107 printf("\n"); 1108 1109 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) { 1110 if (fc->irm == ((CSRARC(fc, NODE_IDS) >> 16 ) & 0x3f)) { 1111 fc->status = FWBUSMGRDONE; 1112 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm); 1113 } else { 1114 fc->status = FWBUSMGRELECT; 1115 callout_reset(&fc->bmr_callout, hz/8, 1116 (void *)fw_try_bmr, (void *)fc); 1117 } 1118 } else { 1119 fc->status = FWBUSMGRDONE; 1120#if 0 1121 device_printf(fc->bdev, "BMR = %x\n", 1122 CSRARC(fc, BUS_MGR_ID)); 1123#endif 1124 } 1125 free(buf, M_FW); 1126 if(fc->irm == ((CSRARC(fc, NODE_IDS) >> 16 ) & 0x3f)){ 1127 /* I am BMGR */ 1128 fw_bmr(fc); 1129 } 1130 callout_reset(&fc->busprobe_callout, hz/4, 1131 (void *)fw_bus_probe, (void *)fc); 1132} 1133 1134/* 1135 * To probe devices on the IEEE1394 bus. 1136 */ 1137static void 1138fw_bus_probe(struct firewire_comm *fc) 1139{ 1140 int s; 1141 struct fw_device *fwdev, *next; 1142 1143 s = splfw(); 1144 fc->status = FWBUSEXPLORE; 1145 fc->retry_count = 0; 1146 1147/* 1148 * Invalidate all devices, just after bus reset. Devices 1149 * to be removed has not been seen longer time. 1150 */ 1151 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1152 next = STAILQ_NEXT(fwdev, link); 1153 if (fwdev->status != FWDEVINVAL) { 1154 fwdev->status = FWDEVINVAL; 1155 fwdev->rcnt = 0; 1156 } else if(fwdev->rcnt < FW_MAXDEVRCNT) { 1157 fwdev->rcnt ++; 1158 } else { 1159 STAILQ_REMOVE(&fc->devices, fwdev, fw_device, link); 1160 free(fwdev, M_FW); 1161 } 1162 } 1163 fc->ongonode = 0; 1164 fc->ongoaddr = CSRROMOFF; 1165 fc->ongodev = NULL; 1166 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1167 fw_bus_explore(fc); 1168 splx(s); 1169} 1170 1171/* 1172 * To collect device informations on the IEEE1394 bus. 1173 */ 1174static void 1175fw_bus_explore(struct firewire_comm *fc ) 1176{ 1177 int err = 0; 1178 struct fw_device *fwdev, *pfwdev, *tfwdev; 1179 u_int32_t addr; 1180 struct fw_xfer *xfer; 1181 struct fw_pkt *fp; 1182 1183 if(fc->status != FWBUSEXPLORE) 1184 return; 1185 1186loop: 1187 if(fc->ongonode == fc->nodeid) fc->ongonode++; 1188 1189 if(fc->ongonode > fc->max_node) goto done; 1190 if(fc->ongonode >= 0x3f) goto done; 1191 1192 /* check link */ 1193 /* XXX we need to check phy_id first */ 1194 if (!fc->topology_map->self_id[fc->ongonode].p0.link_active) { 1195 if (firewire_debug) 1196 printf("node%d: link down\n", fc->ongonode); 1197 fc->ongonode++; 1198 goto loop; 1199 } 1200 1201 if(fc->ongoaddr <= CSRROMOFF && 1202 fc->ongoeui.hi == 0xffffffff && 1203 fc->ongoeui.lo == 0xffffffff ){ 1204 fc->ongoaddr = CSRROMOFF; 1205 addr = 0xf0000000 | fc->ongoaddr; 1206 }else if(fc->ongoeui.hi == 0xffffffff ){ 1207 fc->ongoaddr = CSRROMOFF + 0xc; 1208 addr = 0xf0000000 | fc->ongoaddr; 1209 }else if(fc->ongoeui.lo == 0xffffffff ){ 1210 fc->ongoaddr = CSRROMOFF + 0x10; 1211 addr = 0xf0000000 | fc->ongoaddr; 1212 }else if(fc->ongodev == NULL){ 1213 STAILQ_FOREACH(fwdev, &fc->devices, link) 1214 if (FW_EUI64_EQUAL(fwdev->eui, fc->ongoeui)) 1215 break; 1216 if(fwdev != NULL){ 1217 fwdev->dst = fc->ongonode; 1218 fwdev->status = FWDEVATTACHED; 1219 fc->ongonode++; 1220 fc->ongoaddr = CSRROMOFF; 1221 fc->ongodev = NULL; 1222 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1223 goto loop; 1224 } 1225 fwdev = malloc(sizeof(struct fw_device), M_FW, M_NOWAIT); 1226 if(fwdev == NULL) 1227 return; 1228 fwdev->fc = fc; 1229 fwdev->rommax = 0; 1230 fwdev->dst = fc->ongonode; 1231 fwdev->eui.hi = fc->ongoeui.hi; fwdev->eui.lo = fc->ongoeui.lo; 1232 fwdev->status = FWDEVINIT; 1233#if 0 1234 fwdev->speed = CSRARC(fc, SPED_MAP + 8 + fc->ongonode / 4) 1235 >> ((3 - (fc->ongonode % 4)) * 8); 1236#else 1237 fwdev->speed = fc->speed_map->speed[fc->nodeid][fc->ongonode]; 1238#endif 1239 1240 pfwdev = NULL; 1241 STAILQ_FOREACH(tfwdev, &fc->devices, link) { 1242 if (tfwdev->eui.hi > fwdev->eui.hi || 1243 (tfwdev->eui.hi == fwdev->eui.hi && 1244 tfwdev->eui.lo > fwdev->eui.lo)) 1245 break; 1246 pfwdev = tfwdev; 1247 } 1248 if (pfwdev == NULL) 1249 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link); 1250 else 1251 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link); 1252 1253 device_printf(fc->bdev, "New %s device ID:%08x%08x\n", 1254 linkspeed[fwdev->speed], 1255 fc->ongoeui.hi, fc->ongoeui.lo); 1256 1257 fc->ongodev = fwdev; 1258 fc->ongoaddr = CSRROMOFF; 1259 addr = 0xf0000000 | fc->ongoaddr; 1260 }else{ 1261 addr = 0xf0000000 | fc->ongoaddr; 1262 } 1263#if 0 1264 xfer = asyreqq(fc, FWSPD_S100, 0, 0, 1265 ((FWLOCALBUS | fc->ongonode) << 16) | 0xffff , addr, 1266 fw_bus_explore_callback); 1267 if(xfer == NULL) goto done; 1268#else 1269 xfer = fw_xfer_alloc(M_FWXFER); 1270 if(xfer == NULL){ 1271 goto done; 1272 } 1273 xfer->send.len = 16; 1274 xfer->spd = 0; 1275 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 1276 if(xfer->send.buf == NULL){ 1277 fw_xfer_free( xfer); 1278 return; 1279 } 1280 1281 xfer->send.off = 0; 1282 fp = (struct fw_pkt *)xfer->send.buf; 1283 fp->mode.rreqq.dest_hi = htons(0xffff); 1284 fp->mode.rreqq.tlrt = 0; 1285 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1286 fp->mode.rreqq.pri = 0; 1287 fp->mode.rreqq.src = 0; 1288 xfer->dst = FWLOCALBUS | fc->ongonode; 1289 fp->mode.rreqq.dst = htons(xfer->dst); 1290 fp->mode.rreqq.dest_lo = htonl(addr); 1291 xfer->act.hand = fw_bus_explore_callback; 1292 1293 if (firewire_debug) 1294 printf("node%d: explore addr=0x%x\n", 1295 fc->ongonode, fc->ongoaddr); 1296 err = fw_asyreq(fc, -1, xfer); 1297 if(err){ 1298 fw_xfer_free( xfer); 1299 return; 1300 } 1301#endif 1302 return; 1303done: 1304 /* fw_attach_devs */ 1305 fc->status = FWBUSEXPDONE; 1306 if (firewire_debug) 1307 printf("bus_explore done\n"); 1308 fw_attach_dev(fc); 1309 return; 1310 1311} 1312 1313/* Portable Async. request read quad */ 1314struct fw_xfer * 1315asyreqq(struct firewire_comm *fc, u_int8_t spd, u_int8_t tl, u_int8_t rt, 1316 u_int32_t addr_hi, u_int32_t addr_lo, 1317 void (*hand) __P((struct fw_xfer*))) 1318{ 1319 struct fw_xfer *xfer; 1320 struct fw_pkt *fp; 1321 int err; 1322 1323 xfer = fw_xfer_alloc(M_FWXFER); 1324 if(xfer == NULL){ 1325 return NULL; 1326 } 1327 xfer->send.len = 16; 1328 xfer->spd = spd; /* XXX:min(spd, fc->spd) */ 1329 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 1330 if(xfer->send.buf == NULL){ 1331 fw_xfer_free( xfer); 1332 return NULL; 1333 } 1334 1335 xfer->send.off = 0; 1336 fp = (struct fw_pkt *)xfer->send.buf; 1337 fp->mode.rreqq.dest_hi = htons(addr_hi & 0xffff); 1338 if(tl & FWP_TL_VALID){ 1339 fp->mode.rreqq.tlrt = (tl & 0x3f) << 2; 1340 }else{ 1341 fp->mode.rreqq.tlrt = 0; 1342 } 1343 fp->mode.rreqq.tlrt |= rt & 0x3; 1344 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1345 fp->mode.rreqq.pri = 0; 1346 fp->mode.rreqq.src = 0; 1347 xfer->dst = addr_hi >> 16; 1348 fp->mode.rreqq.dst = htons(xfer->dst); 1349 fp->mode.rreqq.dest_lo = htonl(addr_lo); 1350 xfer->act.hand = hand; 1351 1352 err = fw_asyreq(fc, -1, xfer); 1353 if(err){ 1354 fw_xfer_free( xfer); 1355 return NULL; 1356 } 1357 return xfer; 1358} 1359 1360/* 1361 * Callback for the IEEE1394 bus information collection. 1362 */ 1363static void 1364fw_bus_explore_callback(struct fw_xfer *xfer) 1365{ 1366 struct firewire_comm *fc; 1367 struct fw_pkt *sfp,*rfp; 1368 struct csrhdr *chdr; 1369 struct csrdir *csrd; 1370 struct csrreg *csrreg; 1371 u_int32_t offset; 1372 1373 1374 if(xfer == NULL) { 1375 printf("xfer == NULL\n"); 1376 return; 1377 } 1378 fc = xfer->fc; 1379 1380 if (firewire_debug) 1381 printf("node%d: callback addr=0x%x\n", 1382 fc->ongonode, fc->ongoaddr); 1383 1384 if(xfer->resp != 0){ 1385 printf("node%d: resp=%d addr=0x%x\n", 1386 fc->ongonode, xfer->resp, fc->ongoaddr); 1387 fc->retry_count++; 1388 goto nextnode; 1389 } 1390 1391 if(xfer->send.buf == NULL){ 1392 printf("node%d: send.buf=NULL addr=0x%x\n", 1393 fc->ongonode, fc->ongoaddr); 1394 fc->retry_count++; 1395 goto nextnode; 1396 } 1397 sfp = (struct fw_pkt *)xfer->send.buf; 1398 1399 if(xfer->recv.buf == NULL){ 1400 printf("node%d: recv.buf=NULL addr=0x%x\n", 1401 fc->ongonode, fc->ongoaddr); 1402 fc->retry_count++; 1403 goto nextnode; 1404 } 1405 rfp = (struct fw_pkt *)xfer->recv.buf; 1406#if 0 1407 { 1408 u_int32_t *qld; 1409 int i; 1410 qld = (u_int32_t *)xfer->recv.buf; 1411 printf("len:%d\n", xfer->recv.len); 1412 for( i = 0 ; i <= xfer->recv.len && i < 32; i+= 4){ 1413 printf("0x%08x ", ntohl(rfp->mode.ld[i/4])); 1414 if((i % 16) == 15) printf("\n"); 1415 } 1416 if((i % 16) != 15) printf("\n"); 1417 } 1418#endif 1419 if(fc->ongodev == NULL){ 1420 if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 | CSRROMOFF))){ 1421 rfp->mode.rresq.data = ntohl(rfp->mode.rresq.data); 1422 chdr = (struct csrhdr *)(&rfp->mode.rresq.data); 1423/* If CSR is minimal confinguration, more investgation is not needed. */ 1424 if(chdr->info_len == 1){ 1425 if (firewire_debug) 1426 printf("node%d: minimal config\n", 1427 fc->ongonode); 1428 goto nextnode; 1429 }else{ 1430 fc->ongoaddr = CSRROMOFF + 0xc; 1431 } 1432 }else if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 |(CSRROMOFF + 0xc)))){ 1433 fc->ongoeui.hi = ntohl(rfp->mode.rresq.data); 1434 fc->ongoaddr = CSRROMOFF + 0x10; 1435 }else if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 |(CSRROMOFF + 0x10)))){ 1436 fc->ongoeui.lo = ntohl(rfp->mode.rresq.data); 1437 if (fc->ongoeui.hi == 0 && fc->ongoeui.lo == 0) { 1438 if (firewire_debug) 1439 printf("node%d: eui64 is zero.\n", 1440 fc->ongonode); 1441 goto nextnode; 1442 } 1443 fc->ongoaddr = CSRROMOFF; 1444 } 1445 }else{ 1446 fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4] = ntohl(rfp->mode.rresq.data); 1447 if(fc->ongoaddr > fc->ongodev->rommax){ 1448 fc->ongodev->rommax = fc->ongoaddr; 1449 } 1450 csrd = SLIST_FIRST(&fc->ongocsr); 1451 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1452 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1453 offset = CSRROMOFF; 1454 }else{ 1455 chdr = (struct csrhdr *)&fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]; 1456 offset = csrd->off; 1457 } 1458 if(fc->ongoaddr > (CSRROMOFF + 0x14) && fc->ongoaddr != offset){ 1459 csrreg = (struct csrreg *)&fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4]; 1460 if( csrreg->key == 0x81 || csrreg->key == 0xd1){ 1461 csrd = SLIST_FIRST(&fc->csrfree); 1462 if(csrd == NULL){ 1463 goto nextnode; 1464 }else{ 1465 csrd->ongoaddr = fc->ongoaddr; 1466 fc->ongoaddr += csrreg->val * 4; 1467 csrd->off = fc->ongoaddr; 1468 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1469 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1470 goto nextaddr; 1471 } 1472 } 1473 } 1474 fc->ongoaddr += 4; 1475 if(((fc->ongoaddr - offset)/4 > chdr->crc_len) && 1476 (fc->ongodev->rommax < 0x414)){ 1477 if(fc->ongodev->rommax <= 0x414){ 1478 csrd = SLIST_FIRST(&fc->csrfree); 1479 if(csrd == NULL) goto nextnode; 1480 csrd->off = fc->ongoaddr; 1481 csrd->ongoaddr = fc->ongoaddr; 1482 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1483 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1484 } 1485 goto nextaddr; 1486 } 1487 1488 while(((fc->ongoaddr - offset)/4 > chdr->crc_len)){ 1489 if(csrd == NULL){ 1490 goto nextnode; 1491 }; 1492 fc->ongoaddr = csrd->ongoaddr + 4; 1493 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1494 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1495 csrd = SLIST_FIRST(&fc->ongocsr); 1496 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1497 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1498 offset = CSRROMOFF; 1499 }else{ 1500 chdr = (struct csrhdr *)&(fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]); 1501 offset = csrd->off; 1502 } 1503 } 1504 if((fc->ongoaddr - CSRROMOFF) > CSRROMSIZE){ 1505 goto nextnode; 1506 } 1507 } 1508nextaddr: 1509 fw_xfer_free( xfer); 1510 fw_bus_explore(fc); 1511 return; 1512nextnode: 1513 fw_xfer_free( xfer); 1514 fc->ongonode++; 1515/* housekeeping work space */ 1516 fc->ongoaddr = CSRROMOFF; 1517 fc->ongodev = NULL; 1518 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1519 while((csrd = SLIST_FIRST(&fc->ongocsr)) != NULL){ 1520 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1521 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1522 } 1523 fw_bus_explore(fc); 1524 return; 1525} 1526 1527/* 1528 * To obtain CSR register values. 1529 */ 1530u_int32_t 1531getcsrdata(struct fw_device *fwdev, u_int8_t key) 1532{ 1533 int i; 1534 struct csrhdr *chdr; 1535 struct csrreg *creg; 1536 chdr = (struct csrhdr *)&fwdev->csrrom[0]; 1537 for( i = chdr->info_len + 4; i <= fwdev->rommax - CSRROMOFF; i+=4){ 1538 creg = (struct csrreg *)&fwdev->csrrom[i/4]; 1539 if(creg->key == key){ 1540 return (u_int32_t)creg->val; 1541 } 1542 } 1543 return 0; 1544} 1545 1546/* 1547 * To attach sub-devices layer onto IEEE1394 bus. 1548 */ 1549static void 1550fw_attach_dev(struct firewire_comm *fc) 1551{ 1552 struct fw_device *fwdev; 1553 struct fw_xfer *xfer; 1554 int i, err; 1555 device_t *devlistp; 1556 int devcnt; 1557 struct firewire_dev_comm *fdc; 1558 u_int32_t spec, ver; 1559 1560 STAILQ_FOREACH(fwdev, &fc->devices, link) { 1561 if(fwdev->status == FWDEVINIT){ 1562 spec = getcsrdata(fwdev, CSRKEY_SPEC); 1563 if(spec == 0) 1564 continue; 1565 ver = getcsrdata(fwdev, CSRKEY_VER); 1566 if(ver == 0) 1567 continue; 1568 fwdev->maxrec = (fwdev->csrrom[2] >> 12) & 0xf; 1569 1570 device_printf(fc->bdev, "Device "); 1571 switch(spec){ 1572 case CSRVAL_ANSIT10: 1573 switch(ver){ 1574 case CSRVAL_T10SBP2: 1575 printf("SBP-II"); 1576 break; 1577 default: 1578 break; 1579 } 1580 break; 1581 case CSRVAL_1394TA: 1582 switch(ver){ 1583 case CSR_PROTAVC: 1584 printf("AV/C"); 1585 break; 1586 case CSR_PROTCAL: 1587 printf("CAL"); 1588 break; 1589 case CSR_PROTEHS: 1590 printf("EHS"); 1591 break; 1592 case CSR_PROTHAVI: 1593 printf("HAVi"); 1594 break; 1595 case CSR_PROTCAM104: 1596 printf("1394 Cam 1.04"); 1597 break; 1598 case CSR_PROTCAM120: 1599 printf("1394 Cam 1.20"); 1600 break; 1601 case CSR_PROTCAM130: 1602 printf("1394 Cam 1.30"); 1603 break; 1604 case CSR_PROTDPP: 1605 printf("1394 Direct print"); 1606 break; 1607 case CSR_PROTIICP: 1608 printf("Industrial & Instrument"); 1609 break; 1610 default: 1611 printf("unknown 1394TA"); 1612 break; 1613 } 1614 break; 1615 default: 1616 printf("unknown spec"); 1617 break; 1618 } 1619 fwdev->status = FWDEVATTACHED; 1620 printf("\n"); 1621 } 1622 } 1623 err = device_get_children(fc->bdev, &devlistp, &devcnt); 1624 if( err != 0 ) 1625 return; 1626 for( i = 0 ; i < devcnt ; i++){ 1627 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 1628 fdc = device_get_softc(devlistp[i]); 1629 if (fdc->post_explore != NULL) 1630 fdc->post_explore(fdc); 1631 } 1632 } 1633 free(devlistp, M_TEMP); 1634 1635 /* call pending handlers */ 1636 i = 0; 1637 while ((xfer = STAILQ_FIRST(&fc->pending))) { 1638 STAILQ_REMOVE_HEAD(&fc->pending, link); 1639 i++; 1640 if (xfer->act.hand) 1641 xfer->act.hand(xfer); 1642 } 1643 if (i > 0) 1644 printf("fw_attach_dev: %d pending handlers called\n", i); 1645 if (fc->retry_count > 0) { 1646 printf("probe failed for %d node\n", fc->retry_count); 1647#if 0 1648 callout_reset(&fc->retry_probe_callout, hz*2, 1649 (void *)fc->ibr, (void *)fc); 1650#endif 1651 } 1652 return; 1653} 1654 1655/* 1656 * To allocate uniq transaction label. 1657 */ 1658static int 1659fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer) 1660{ 1661 u_int i; 1662 struct tlabel *tl, *tmptl; 1663 int s; 1664 static u_int32_t label = 0; 1665 1666 s = splfw(); 1667 for( i = 0 ; i < 0x40 ; i ++){ 1668 label = (label + 1) & 0x3f; 1669 for(tmptl = STAILQ_FIRST(&fc->tlabels[label]); 1670 tmptl != NULL; tmptl = STAILQ_NEXT(tmptl, link)){ 1671 if(tmptl->xfer->dst == xfer->dst) break; 1672 } 1673 if(tmptl == NULL) { 1674 tl = malloc(sizeof(struct tlabel),M_FW,M_NOWAIT); 1675 if (tl == NULL) { 1676 splx(s); 1677 return (-1); 1678 } 1679 tl->xfer = xfer; 1680 STAILQ_INSERT_TAIL(&fc->tlabels[label], tl, link); 1681 splx(s); 1682 if (firewire_debug > 1) 1683 printf("fw_get_tlabel: dst=%d tl=%d\n", 1684 xfer->dst, label); 1685 return(label); 1686 } 1687 } 1688 splx(s); 1689 1690 printf("fw_get_tlabel: no free tlabel\n"); 1691 return(-1); 1692} 1693 1694/* 1695 * Generic packet receving process. 1696 */ 1697void 1698fw_rcv(struct firewire_comm* fc, caddr_t buf, u_int len, u_int sub, u_int off, u_int spd) 1699{ 1700 struct fw_pkt *fp, *resfp; 1701 struct fw_xfer *xfer; 1702 struct fw_bind *bind; 1703 struct firewire_softc *sc; 1704 int s; 1705#if 0 1706 { 1707 u_int32_t *qld; 1708 int i; 1709 qld = (u_int32_t *)buf; 1710 printf("spd %d len:%d\n", spd, len); 1711 for( i = 0 ; i <= len && i < 32; i+= 4){ 1712 printf("0x%08x ", ntohl(qld[i/4])); 1713 if((i % 16) == 15) printf("\n"); 1714 } 1715 if((i % 16) != 15) printf("\n"); 1716 } 1717#endif 1718 fp = (struct fw_pkt *)(buf + off); 1719 switch(fp->mode.common.tcode){ 1720 case FWTCODE_WRES: 1721 case FWTCODE_RRESQ: 1722 case FWTCODE_RRESB: 1723 case FWTCODE_LRES: 1724 xfer = fw_tl2xfer(fc, ntohs(fp->mode.hdr.src), 1725 fp->mode.hdr.tlrt >> 2); 1726 if(xfer == NULL) { 1727 printf("fw_rcv: unknown response " 1728 "tcode=%d src=0x%x tl=0x%x rt=%d data=0x%x\n", 1729 fp->mode.common.tcode, 1730 ntohs(fp->mode.hdr.src), 1731 fp->mode.hdr.tlrt >> 2, 1732 fp->mode.hdr.tlrt & 3, 1733 fp->mode.rresq.data); 1734#if 1 1735 printf("try ad-hoc work around!!\n"); 1736 xfer = fw_tl2xfer(fc, ntohs(fp->mode.hdr.src), 1737 (fp->mode.hdr.tlrt >> 2)^3); 1738 if (xfer == NULL) { 1739 printf("no use...\n"); 1740 goto err; 1741 } 1742#else 1743 goto err; 1744#endif 1745 } 1746 switch(xfer->act_type){ 1747 case FWACT_XFER: 1748 if((xfer->sub >= 0) && 1749 ((fc->ir[xfer->sub]->flag & FWXFERQ_MODEMASK ) == 0)){ 1750 xfer->resp = EINVAL; 1751 fw_xfer_done(xfer); 1752 goto err; 1753 } 1754 xfer->recv.len = len; 1755 xfer->recv.off = off; 1756 xfer->recv.buf = buf; 1757 xfer->resp = 0; 1758 fw_xfer_done(xfer); 1759 return; 1760 break; 1761 case FWACT_CH: 1762 default: 1763 goto err; 1764 break; 1765 } 1766 break; 1767 case FWTCODE_WREQQ: 1768 case FWTCODE_WREQB: 1769 case FWTCODE_RREQQ: 1770 case FWTCODE_RREQB: 1771 case FWTCODE_LREQ: 1772 bind = fw_bindlookup(fc, ntohs(fp->mode.rreqq.dest_hi), 1773 ntohl(fp->mode.rreqq.dest_lo)); 1774 if(bind == NULL){ 1775#if __FreeBSD_version >= 500000 1776 printf("Unknown service addr 0x%08x:0x%08x tcode=%x\n", 1777#else 1778 printf("Unknown service addr 0x%08x:0x%08lx tcode=%x\n", 1779#endif 1780 ntohs(fp->mode.rreqq.dest_hi), 1781 ntohl(fp->mode.rreqq.dest_lo), 1782 fp->mode.common.tcode); 1783 if (fc->status == FWBUSRESET) { 1784 printf("fw_rcv: cannot respond(bus reset)!\n"); 1785 goto err; 1786 } 1787 xfer = fw_xfer_alloc(M_FWXFER); 1788 if(xfer == NULL){ 1789 return; 1790 } 1791 xfer->spd = spd; 1792 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 1793 resfp = (struct fw_pkt *)xfer->send.buf; 1794 switch(fp->mode.common.tcode){ 1795 case FWTCODE_WREQQ: 1796 case FWTCODE_WREQB: 1797 resfp->mode.hdr.tcode = FWTCODE_WRES; 1798 xfer->send.len = 12; 1799 break; 1800 case FWTCODE_RREQQ: 1801 resfp->mode.hdr.tcode = FWTCODE_RRESQ; 1802 xfer->send.len = 16; 1803 break; 1804 case FWTCODE_RREQB: 1805 resfp->mode.hdr.tcode = FWTCODE_RRESB; 1806 xfer->send.len = 16; 1807 break; 1808 case FWTCODE_LREQ: 1809 resfp->mode.hdr.tcode = FWTCODE_LRES; 1810 xfer->send.len = 16; 1811 break; 1812 } 1813 resfp->mode.hdr.dst = fp->mode.hdr.src; 1814 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt; 1815 resfp->mode.hdr.pri = fp->mode.hdr.pri; 1816 resfp->mode.rresb.rtcode = 7; 1817 resfp->mode.rresb.extcode = 0; 1818 resfp->mode.rresb.len = 0; 1819/* 1820 xfer->act.hand = fw_asy_callback; 1821*/ 1822 xfer->act.hand = fw_xfer_free; 1823 if(fw_asyreq(fc, -1, xfer)){ 1824 fw_xfer_free( xfer); 1825 return; 1826 } 1827 goto err; 1828 } 1829 switch(bind->xfer->act_type){ 1830 case FWACT_XFER: 1831 xfer = fw_xfer_alloc(M_FWXFER); 1832 if(xfer == NULL) goto err; 1833 xfer->fc = bind->xfer->fc; 1834 xfer->sc = bind->xfer->sc; 1835 xfer->recv.buf = buf; 1836 xfer->recv.len = len; 1837 xfer->recv.off = off; 1838 xfer->spd = spd; 1839 xfer->act.hand = bind->xfer->act.hand; 1840 if (fc->status != FWBUSRESET) 1841 xfer->act.hand(xfer); 1842 else 1843 STAILQ_INSERT_TAIL(&fc->pending, xfer, link); 1844 return; 1845 break; 1846 case FWACT_CH: 1847 if(fc->ir[bind->xfer->sub]->queued >= 1848 fc->ir[bind->xfer->sub]->maxq){ 1849 device_printf(fc->bdev, 1850 "Discard a packet %x %d\n", 1851 bind->xfer->sub, 1852 fc->ir[bind->xfer->sub]->queued); 1853 goto err; 1854 } 1855 xfer = fw_xfer_alloc(M_FWXFER); 1856 if(xfer == NULL) goto err; 1857 xfer->recv.buf = buf; 1858 xfer->recv.len = len; 1859 xfer->recv.off = off; 1860 xfer->spd = spd; 1861 s = splfw(); 1862 fc->ir[bind->xfer->sub]->queued++; 1863 STAILQ_INSERT_TAIL(&fc->ir[bind->xfer->sub]->q, xfer, link); 1864 splx(s); 1865 1866 wakeup((caddr_t)fc->ir[bind->xfer->sub]); 1867 1868 return; 1869 break; 1870 default: 1871 goto err; 1872 break; 1873 } 1874 break; 1875 case FWTCODE_STREAM: 1876 { 1877 struct fw_xferq *xferq; 1878 1879 xferq = fc->ir[sub]; 1880#if 0 1881 printf("stream rcv dma %d len %d off %d spd %d\n", 1882 sub, len, off, spd); 1883#endif 1884 if(xferq->queued >= xferq->maxq) { 1885 printf("receive queue is full\n"); 1886 goto err; 1887 } 1888 xfer = fw_xfer_alloc(M_FWXFER); 1889 if(xfer == NULL) goto err; 1890 xfer->recv.buf = buf; 1891 xfer->recv.len = len; 1892 xfer->recv.off = off; 1893 xfer->spd = spd; 1894 s = splfw(); 1895 xferq->queued++; 1896 STAILQ_INSERT_TAIL(&xferq->q, xfer, link); 1897 splx(s); 1898 sc = device_get_softc(fc->bdev); 1899#if __FreeBSD_version >= 500000 1900 if (SEL_WAITING(&xferq->rsel)) 1901#else 1902 if (&xferq->rsel.si_pid != 0) 1903#endif 1904 selwakeup(&xferq->rsel); 1905 if (xferq->flag & FWXFERQ_WAKEUP) { 1906 xferq->flag &= ~FWXFERQ_WAKEUP; 1907 wakeup((caddr_t)xferq); 1908 } 1909 if (xferq->flag & FWXFERQ_HANDLER) { 1910 xferq->hand(xferq); 1911 } 1912 return; 1913 break; 1914 } 1915 default: 1916 printf("fw_rcv: unknow tcode\n"); 1917 break; 1918 } 1919err: 1920 free(buf, M_FW); 1921} 1922 1923/* 1924 * Post process for Bus Manager election process. 1925 */ 1926static void 1927fw_try_bmr_callback(struct fw_xfer *xfer) 1928{ 1929 struct fw_pkt *rfp; 1930 struct firewire_comm *fc; 1931 int bmr; 1932 1933 if (xfer == NULL) 1934 return; 1935 fc = xfer->fc; 1936 if (xfer->resp != 0) 1937 goto error; 1938 if (xfer->send.buf == NULL) 1939 goto error; 1940 if (xfer->recv.buf == NULL) 1941 goto error; 1942 rfp = (struct fw_pkt *)xfer->recv.buf; 1943 if (rfp->mode.lres.rtcode != FWRCODE_COMPLETE) 1944 goto error; 1945 1946 bmr = ntohl(rfp->mode.lres.payload[0]); 1947 if (bmr == 0x3f) 1948 bmr = fc->nodeid; 1949 1950 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f); 1951 device_printf(fc->bdev, "new bus manager %d ", 1952 CSRARC(fc, BUS_MGR_ID)); 1953 if(bmr == fc->nodeid){ 1954 printf("(me)\n"); 1955 fw_bmr(fc); 1956 }else{ 1957 printf("\n"); 1958 } 1959error: 1960 fw_xfer_free(xfer); 1961} 1962 1963/* 1964 * To candidate Bus Manager election process. 1965 */ 1966static void 1967fw_try_bmr(void *arg) 1968{ 1969 struct fw_xfer *xfer; 1970 struct firewire_comm *fc = (struct firewire_comm *)arg; 1971 struct fw_pkt *fp; 1972 int err = 0; 1973 1974 xfer = fw_xfer_alloc(M_FWXFER); 1975 if(xfer == NULL){ 1976 return; 1977 } 1978 xfer->send.len = 24; 1979 xfer->spd = 0; 1980 xfer->send.buf = malloc(24, M_FW, M_NOWAIT); 1981 if(xfer->send.buf == NULL){ 1982 fw_xfer_free( xfer); 1983 return; 1984 } 1985 1986 fc->status = FWBUSMGRELECT; 1987 1988 xfer->send.off = 0; 1989 fp = (struct fw_pkt *)xfer->send.buf; 1990 fp->mode.lreq.dest_hi = htons(0xffff); 1991 fp->mode.lreq.tlrt = 0; 1992 fp->mode.lreq.tcode = FWTCODE_LREQ; 1993 fp->mode.lreq.pri = 0; 1994 fp->mode.lreq.src = 0; 1995 fp->mode.lreq.len = htons(8); 1996 fp->mode.lreq.extcode = htons(FW_LREQ_CMPSWAP); 1997 xfer->dst = FWLOCALBUS | fc->irm; 1998 fp->mode.lreq.dst = htons(xfer->dst); 1999 fp->mode.lreq.dest_lo = htonl(0xf0000000 | BUS_MGR_ID); 2000 fp->mode.lreq.payload[0] = htonl(0x3f); 2001 fp->mode.lreq.payload[1] = htonl(fc->nodeid); 2002 xfer->act_type = FWACT_XFER; 2003 xfer->act.hand = fw_try_bmr_callback; 2004 2005 err = fw_asyreq(fc, -1, xfer); 2006 if(err){ 2007 fw_xfer_free( xfer); 2008 return; 2009 } 2010 return; 2011} 2012 2013#ifdef FW_VMACCESS 2014/* 2015 * Software implementation for physical memory block access. 2016 * XXX:Too slow, usef for debug purpose only. 2017 */ 2018static void 2019fw_vmaccess(struct fw_xfer *xfer){ 2020 struct fw_pkt *rfp, *sfp = NULL; 2021 u_int32_t *ld = (u_int32_t *)(xfer->recv.buf + xfer->recv.off); 2022 2023 printf("vmaccess spd:%2x len:%03x %d data:%08x %08x %08x %08x\n", 2024 xfer->spd, xfer->recv.len, xfer->recv.off, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 2025 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 2026 if(xfer->resp != 0){ 2027 fw_xfer_free( xfer); 2028 return; 2029 } 2030 if(xfer->recv.buf == NULL){ 2031 fw_xfer_free( xfer); 2032 return; 2033 } 2034 rfp = (struct fw_pkt *)xfer->recv.buf; 2035 switch(rfp->mode.hdr.tcode){ 2036 /* XXX need fix for 64bit arch */ 2037 case FWTCODE_WREQB: 2038 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2039 xfer->send.len = 12; 2040 sfp = (struct fw_pkt *)xfer->send.buf; 2041 bcopy(rfp->mode.wreqb.payload, 2042 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len)); 2043 sfp->mode.wres.tcode = FWTCODE_WRES; 2044 sfp->mode.wres.rtcode = 0; 2045 break; 2046 case FWTCODE_WREQQ: 2047 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2048 xfer->send.len = 12; 2049 sfp->mode.wres.tcode = FWTCODE_WRES; 2050 *((u_int32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data; 2051 sfp->mode.wres.rtcode = 0; 2052 break; 2053 case FWTCODE_RREQB: 2054 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_FW, M_NOWAIT); 2055 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len); 2056 sfp = (struct fw_pkt *)xfer->send.buf; 2057 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo), 2058 sfp->mode.rresb.payload, (u_int16_t)ntohs(rfp->mode.rreqb.len)); 2059 sfp->mode.rresb.tcode = FWTCODE_RRESB; 2060 sfp->mode.rresb.len = rfp->mode.rreqb.len; 2061 sfp->mode.rresb.rtcode = 0; 2062 sfp->mode.rresb.extcode = 0; 2063 break; 2064 case FWTCODE_RREQQ: 2065 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 2066 xfer->send.len = 16; 2067 sfp = (struct fw_pkt *)xfer->send.buf; 2068 sfp->mode.rresq.data = *(u_int32_t *)(ntohl(rfp->mode.rreqq.dest_lo)); 2069 sfp->mode.wres.tcode = FWTCODE_RRESQ; 2070 sfp->mode.rresb.rtcode = 0; 2071 break; 2072 default: 2073 fw_xfer_free( xfer); 2074 return; 2075 } 2076 xfer->send.off = 0; 2077 sfp->mode.hdr.dst = rfp->mode.hdr.src; 2078 xfer->dst = ntohs(rfp->mode.hdr.src); 2079 xfer->act.hand = fw_xfer_free; 2080 xfer->retry_req = fw_asybusy; 2081 2082 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt; 2083 sfp->mode.hdr.pri = 0; 2084 2085 fw_asyreq(xfer->fc, -1, xfer); 2086/**/ 2087 return; 2088} 2089#endif 2090 2091/* 2092 * CRC16 check-sum for IEEE1394 register blocks. 2093 */ 2094u_int16_t 2095fw_crc16(u_int32_t *ptr, u_int32_t len){ 2096 u_int32_t i, sum, crc = 0; 2097 int shift; 2098 len = (len + 3) & ~3; 2099 for(i = 0 ; i < len ; i+= 4){ 2100 for( shift = 28 ; shift >= 0 ; shift -= 4){ 2101 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf; 2102 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum; 2103 } 2104 crc &= 0xffff; 2105 } 2106 return((u_int16_t) crc); 2107} 2108 2109static int 2110fw_bmr(struct firewire_comm *fc) 2111{ 2112 struct fw_device fwdev; 2113 int cmstr; 2114 2115 /* XXX Assume that the current root node is cycle master capable */ 2116 cmstr = fc->max_node; 2117 /* If I am the bus manager, optimize gapcount */ 2118 if(fc->max_hop <= MAX_GAPHOP ){ 2119 fw_phy_config(fc, (fc->max_node > 0)?cmstr:-1, 2120 gap_cnt[fc->max_hop]); 2121 } 2122 /* If we are the cycle master, nothing to do */ 2123 if (cmstr == fc->nodeid) 2124 return 0; 2125 /* Bus probe has not finished, make dummy fwdev for cmstr */ 2126 bzero(&fwdev, sizeof(fwdev)); 2127 fwdev.fc = fc; 2128 fwdev.dst = cmstr; 2129 fwdev.speed = 0; 2130 fwdev.maxrec = 8; /* 512 */ 2131 fwdev.status = FWDEVINIT; 2132 /* Set cmstr bit on the cycle master */ 2133 fwmem_write_quad(&fwdev, NULL, 0/*spd*/, 2134 0xffff, 0xf0000000 | STATE_SET, 1 << 16, 2135 fw_asy_callback_free); 2136 2137 return 0; 2138} 2139 2140DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,0,0); 2141MODULE_VERSION(firewire, 1); 2142