firewire.c revision 110582
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 110582 2003-02-09 10:14:22Z 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; 339 340 split_timeout.tv_sec = 2; 341 split_timeout.tv_usec = 0; 342 343 microtime(&tv); 344 timevalsub(&tv, &split_timeout); 345 346 for (i = 0; i < 0x40; i ++) { 347 while ((tl = STAILQ_FIRST(&fc->tlabels[i])) != NULL) { 348 xfer = tl->xfer; 349 if (timevalcmp(&xfer->tv, &tv, >)) 350 /* the rests are newer than this */ 351 break; 352 device_printf(fc->bdev, 353 "split transaction timeout dst=%d tl=%d\n", 354 xfer->dst, i); 355 xfer->resp = ETIMEDOUT; 356 STAILQ_REMOVE_HEAD(&fc->tlabels[i], link); 357 switch (xfer->act_type) { 358 case FWACT_XFER: 359 fw_xfer_done(xfer); 360 break; 361 default: 362 /* ??? */ 363 fw_xfer_free(xfer); 364 break; 365 } 366 } 367 } 368} 369 370static void 371firewire_watchdog(void *arg) 372{ 373 struct firewire_comm *fc; 374 375 fc = (struct firewire_comm *)arg; 376 firewire_xfer_timeout(fc); 377 fc->timeout(fc); 378 callout_reset(&fc->timeout_callout, hz, 379 (void *)firewire_watchdog, (void *)fc); 380} 381 382/* 383 * The attach routine. 384 */ 385static int 386firewire_attach( device_t dev ) 387{ 388 int i, unitmask, mn; 389 struct firewire_softc *sc = device_get_softc(dev); 390 device_t pa = device_get_parent(dev); 391 struct firewire_comm *fc; 392 dev_t d; 393 394 fc = (struct firewire_comm *)device_get_softc(pa); 395 sc->fc = fc; 396 397 unitmask = UNIT2MIN(device_get_unit(dev)); 398 399 if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA; 400 for ( i = 0 ; i < fc->nisodma ; i++ ){ 401 mn = unitmask | i; 402 /* XXX device name should be improved */ 403 d = make_dev(&firewire_cdevsw, unit2minor(mn), 404 UID_ROOT, GID_OPERATOR, 0660, 405 "fw%x", mn); 406#if __FreeBSD_version >= 500000 407 if (i == 0) 408 sc->dev = d; 409 else 410 dev_depends(sc->dev, d); 411#else 412 sc->dev[i] = d; 413#endif 414 } 415 d = make_dev(&firewire_cdevsw, unit2minor(unitmask | FWMEM_FLAG), 416 UID_ROOT, GID_OPERATOR, 0660, 417 "fwmem%d", device_get_unit(dev)); 418#if __FreeBSD_version >= 500000 419 dev_depends(sc->dev, d); 420#else 421 sc->dev[i] = d; 422#endif 423#if __FreeBSD_version >= 500000 424#define CALLOUT_INIT(x) callout_init(x, 0 /* mpsafe */) 425#else 426#define CALLOUT_INIT(x) callout_init(x) 427#endif 428 CALLOUT_INIT(&sc->fc->timeout_callout); 429 CALLOUT_INIT(&sc->fc->bmr_callout); 430 CALLOUT_INIT(&sc->fc->retry_probe_callout); 431 CALLOUT_INIT(&sc->fc->busprobe_callout); 432 433 callout_reset(&sc->fc->timeout_callout, hz, 434 (void *)firewire_watchdog, (void *)sc->fc); 435 436 /* Locate our children */ 437 bus_generic_probe(dev); 438 439 /* launch attachement of the added children */ 440 bus_generic_attach(dev); 441 442#if 1 443 /* bus_reset */ 444 fc->ibr(fc); 445#endif 446 447 return 0; 448} 449 450/* 451 * Attach it as child. 452 */ 453static device_t 454firewire_add_child(device_t dev, int order, const char *name, int unit) 455{ 456 device_t child; 457 struct firewire_softc *sc; 458 459 sc = (struct firewire_softc *)device_get_softc(dev); 460 child = device_add_child(dev, name, unit); 461 if (child) { 462 device_set_ivars(child, sc->fc); 463 device_probe_and_attach(child); 464 } 465 466 return child; 467} 468 469/* 470 * Dettach it. 471 */ 472static int 473firewire_detach( device_t dev ) 474{ 475 struct firewire_softc *sc; 476 477 sc = (struct firewire_softc *)device_get_softc(dev); 478 479#if __FreeBSD_version >= 500000 480 destroy_dev(sc->dev); 481#else 482 { 483 int j; 484 for (j = 0 ; j < sc->fc->nisodma + 1; j++) 485 destroy_dev(sc->dev[j]); 486 } 487#endif 488 /* XXX xfree_free and untimeout on all xfers */ 489 callout_stop(&sc->fc->timeout_callout); 490 callout_stop(&sc->fc->bmr_callout); 491 callout_stop(&sc->fc->retry_probe_callout); 492 callout_stop(&sc->fc->busprobe_callout); 493 free(sc->fc->topology_map, M_FW); 494 free(sc->fc->speed_map, M_FW); 495 bus_generic_detach(dev); 496 return(0); 497} 498#if 0 499static int 500firewire_shutdown( device_t dev ) 501{ 502 return 0; 503} 504#endif 505 506 507static void 508firewire_xferq_drain(struct fw_xferq *xferq) 509{ 510 struct fw_xfer *xfer; 511 512 while ((xfer = STAILQ_FIRST(&xferq->q)) != NULL) { 513 STAILQ_REMOVE_HEAD(&xferq->q, link); 514 xfer->resp = EAGAIN; 515 switch (xfer->act_type) { 516 case FWACT_XFER: 517 fw_xfer_done(xfer); 518 break; 519 default: 520 /* ??? */ 521 fw_xfer_free(xfer); 522 break; 523 } 524 } 525} 526 527/* 528 * Called after bus reset. 529 */ 530void 531fw_busreset(struct firewire_comm *fc) 532{ 533 int i; 534 535 switch(fc->status){ 536 case FWBUSMGRELECT: 537 callout_stop(&fc->bmr_callout); 538 break; 539 default: 540 break; 541 } 542 fc->status = FWBUSRESET; 543/* XXX: discard all queued packet */ 544 firewire_xferq_drain(fc->atq); 545 firewire_xferq_drain(fc->ats); 546 for(i = 0; i < fc->nisodma; i++) 547 firewire_xferq_drain(fc->it[i]); 548 549 CSRARC(fc, STATE_CLEAR) 550 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 551 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 552 CSRARC(fc, NODE_IDS) = 0x3f; 553 554 CSRARC(fc, TOPO_MAP + 8) = 0; 555 fc->irm = -1; 556 557 fc->max_node = -1; 558 559 for(i = 2; i < 0x100/4 - 2 ; i++){ 560 CSRARC(fc, SPED_MAP + i * 4) = 0; 561 } 562 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 563 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 564 CSRARC(fc, RESET_START) = 0; 565 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0; 566 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19; 567 CSRARC(fc, CYCLE_TIME) = 0x0; 568 CSRARC(fc, BUS_TIME) = 0x0; 569 CSRARC(fc, BUS_MGR_ID) = 0x3f; 570 CSRARC(fc, BANDWIDTH_AV) = 4915; 571 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff; 572 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff; 573 CSRARC(fc, IP_CHANNELS) = (1 << 31); 574 575 CSRARC(fc, CONF_ROM) = 0x04 << 24; 576 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */ 577 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 | 578 1 << 28 | 0xff << 16 | 0x09 << 8; 579 CSRARC(fc, CONF_ROM + 0xc) = 0; 580 581/* DV depend CSRs see blue book */ 582 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON; 583 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON; 584 585 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 ); 586 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 587} 588 589/* Call once after reboot */ 590void fw_init(struct firewire_comm *fc) 591{ 592 int i; 593 struct csrdir *csrd; 594#ifdef FW_VMACCESS 595 struct fw_xfer *xfer; 596 struct fw_bind *fwb; 597#endif 598 599 fc->max_asyretry = FW_MAXASYRTY; 600 601 fc->arq->queued = 0; 602 fc->ars->queued = 0; 603 fc->atq->queued = 0; 604 fc->ats->queued = 0; 605 606 fc->arq->psize = PAGE_SIZE; 607 fc->ars->psize = PAGE_SIZE; 608 fc->atq->psize = 0; 609 fc->ats->psize = 0; 610 611 612 fc->arq->buf = NULL; 613 fc->ars->buf = NULL; 614 fc->atq->buf = NULL; 615 fc->ats->buf = NULL; 616 617 fc->arq->flag = FWXFERQ_PACKET; 618 fc->ars->flag = FWXFERQ_PACKET; 619 fc->atq->flag = FWXFERQ_PACKET; 620 fc->ats->flag = FWXFERQ_PACKET; 621 622 STAILQ_INIT(&fc->atq->q); 623 STAILQ_INIT(&fc->ats->q); 624 625 for( i = 0 ; i < fc->nisodma ; i ++ ){ 626 fc->it[i]->queued = 0; 627 fc->ir[i]->queued = 0; 628 629 fc->it[i]->start = NULL; 630 fc->ir[i]->start = NULL; 631 632 fc->it[i]->buf = NULL; 633 fc->ir[i]->buf = NULL; 634 635 fc->it[i]->flag = FWXFERQ_STREAM; 636 fc->ir[i]->flag = FWXFERQ_STREAM; 637 638 STAILQ_INIT(&fc->it[i]->q); 639 STAILQ_INIT(&fc->ir[i]->q); 640 641 STAILQ_INIT(&fc->it[i]->binds); 642 STAILQ_INIT(&fc->ir[i]->binds); 643 } 644 645 fc->arq->maxq = FWMAXQUEUE; 646 fc->ars->maxq = FWMAXQUEUE; 647 fc->atq->maxq = FWMAXQUEUE; 648 fc->ats->maxq = FWMAXQUEUE; 649 650 for( i = 0 ; i < fc->nisodma ; i++){ 651 fc->ir[i]->maxq = FWMAXQUEUE; 652 fc->it[i]->maxq = FWMAXQUEUE; 653 } 654/* Initialize csr registers */ 655 fc->topology_map = (struct fw_topology_map *)malloc( 656 sizeof(struct fw_topology_map), 657 M_FW, M_NOWAIT | M_ZERO); 658 fc->speed_map = (struct fw_speed_map *)malloc( 659 sizeof(struct fw_speed_map), 660 M_FW, M_NOWAIT | M_ZERO); 661 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16; 662 CSRARC(fc, TOPO_MAP + 4) = 1; 663 CSRARC(fc, SPED_MAP) = 0x3f1 << 16; 664 CSRARC(fc, SPED_MAP + 4) = 1; 665 666 STAILQ_INIT(&fc->devices); 667 STAILQ_INIT(&fc->pending); 668 669/* Initialize csr ROM work space */ 670 SLIST_INIT(&fc->ongocsr); 671 SLIST_INIT(&fc->csrfree); 672 for( i = 0 ; i < FWMAXCSRDIR ; i++){ 673 csrd = (struct csrdir *) malloc(sizeof(struct csrdir), M_FW,M_NOWAIT); 674 if(csrd == NULL) break; 675 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 676 } 677 678/* Initialize Async handlers */ 679 STAILQ_INIT(&fc->binds); 680 for( i = 0 ; i < 0x40 ; i++){ 681 STAILQ_INIT(&fc->tlabels[i]); 682 } 683 684/* DV depend CSRs see blue book */ 685#if 0 686 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */ 687 CSRARC(fc, oPCR) = 0x8000007a; 688 for(i = 4 ; i < 0x7c/4 ; i+=4){ 689 CSRARC(fc, i + oPCR) = 0x8000007a; 690 } 691 692 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */ 693 CSRARC(fc, iPCR) = 0x803f0000; 694 for(i = 4 ; i < 0x7c/4 ; i+=4){ 695 CSRARC(fc, i + iPCR) = 0x0; 696 } 697#endif 698 699 700#ifdef FW_VMACCESS 701 xfer = fw_xfer_alloc(); 702 if(xfer == NULL) return; 703 704 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_FW, M_NOWAIT); 705 if(fwb == NULL){ 706 fw_xfer_free(xfer); 707 } 708 xfer->act.hand = fw_vmaccess; 709 xfer->act_type = FWACT_XFER; 710 xfer->fc = fc; 711 xfer->sc = NULL; 712 713 fwb->start_hi = 0x2; 714 fwb->start_lo = 0; 715 fwb->addrlen = 0xffffffff; 716 fwb->xfer = xfer; 717 fw_bindadd(fc, fwb); 718#endif 719} 720 721/* 722 * To lookup binded process from IEEE1394 address. 723 */ 724struct fw_bind * 725fw_bindlookup(struct firewire_comm *fc, u_int32_t dest_hi, u_int32_t dest_lo) 726{ 727 struct fw_bind *tfw; 728 for(tfw = STAILQ_FIRST(&fc->binds) ; tfw != NULL ; 729 tfw = STAILQ_NEXT(tfw, fclist)){ 730 if(tfw->xfer->act_type != FWACT_NULL && 731 tfw->start_hi == dest_hi && 732 tfw->start_lo <= dest_lo && 733 (tfw->start_lo + tfw->addrlen) > dest_lo){ 734 return(tfw); 735 } 736 } 737 return(NULL); 738} 739 740/* 741 * To bind IEEE1394 address block to process. 742 */ 743int 744fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb) 745{ 746 struct fw_bind *tfw, *tfw2 = NULL; 747 int err = 0; 748 tfw = STAILQ_FIRST(&fc->binds); 749 if(tfw == NULL){ 750 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 751 goto out; 752 } 753 if((tfw->start_hi > fwb->start_hi) || 754 (tfw->start_hi == fwb->start_hi && 755 (tfw->start_lo > (fwb->start_lo + fwb->addrlen)))){ 756 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 757 goto out; 758 } 759 for(; tfw != NULL; tfw = STAILQ_NEXT(tfw, fclist)){ 760 if((tfw->start_hi < fwb->start_hi) || 761 (tfw->start_hi == fwb->start_hi && 762 (tfw->start_lo + tfw->addrlen) < fwb->start_lo)){ 763 tfw2 = STAILQ_NEXT(tfw, fclist); 764 if(tfw2 == NULL) 765 break; 766 if((tfw2->start_hi > fwb->start_hi) || 767 (tfw2->start_hi == fwb->start_hi && 768 tfw2->start_lo > (fwb->start_lo + fwb->addrlen))){ 769 break; 770 }else{ 771 err = EBUSY; 772 goto out; 773 } 774 } 775 } 776 if(tfw != NULL){ 777 STAILQ_INSERT_AFTER(&fc->binds, tfw, fwb, fclist); 778 }else{ 779 STAILQ_INSERT_TAIL(&fc->binds, fwb, fclist); 780 } 781out: 782 if(!err && fwb->xfer->act_type == FWACT_CH){ 783 STAILQ_INSERT_HEAD(&fc->ir[fwb->xfer->sub]->binds, fwb, chlist); 784 } 785 return err; 786} 787 788/* 789 * To free IEEE1394 address block. 790 */ 791int 792fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb) 793{ 794 int s; 795 796 s = splfw(); 797 /* shall we check the existance? */ 798 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist); 799 splx(s); 800 if (fwb->xfer) 801 fw_xfer_free(fwb->xfer); 802 803 return 0; 804} 805 806/* 807 * To free transaction label. 808 */ 809static void 810fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer) 811{ 812 struct tlabel *tl; 813 int s = splfw(); 814 815 for( tl = STAILQ_FIRST(&fc->tlabels[xfer->tl]); tl != NULL; 816 tl = STAILQ_NEXT(tl, link)){ 817 if(tl->xfer == xfer){ 818 STAILQ_REMOVE(&fc->tlabels[xfer->tl], tl, tlabel, link); 819 free(tl, M_FW); 820 splx(s); 821 return; 822 } 823 } 824 splx(s); 825 return; 826} 827 828/* 829 * To obtain XFER structure by transaction label. 830 */ 831static struct fw_xfer * 832fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel) 833{ 834 struct fw_xfer *xfer; 835 struct tlabel *tl; 836 int s = splfw(); 837 838 for( tl = STAILQ_FIRST(&fc->tlabels[tlabel]); tl != NULL; 839 tl = STAILQ_NEXT(tl, link)){ 840 if(tl->xfer->dst == node){ 841 xfer = tl->xfer; 842 splx(s); 843 if (firewire_debug > 2) 844 printf("fw_tl2xfer: found tl=%d\n", tlabel); 845 return(xfer); 846 } 847 } 848 if (firewire_debug > 1) 849 printf("fw_tl2xfer: not found tl=%d\n", tlabel); 850 splx(s); 851 return(NULL); 852} 853 854/* 855 * To allocate IEEE1394 XFER structure. 856 */ 857struct fw_xfer * 858fw_xfer_alloc(struct malloc_type *type) 859{ 860 struct fw_xfer *xfer; 861 862 xfer = malloc(sizeof(struct fw_xfer), type, M_NOWAIT | M_ZERO); 863 if (xfer == NULL) 864 return xfer; 865 866 microtime(&xfer->tv); 867 xfer->sub = -1; 868 xfer->malloc = type; 869 870 return xfer; 871} 872 873/* 874 * IEEE1394 XFER post process. 875 */ 876void 877fw_xfer_done(struct fw_xfer *xfer) 878{ 879 if (xfer->act.hand == NULL) 880 return; 881 882#if XFER_TIMEOUT 883 untimeout(fw_xfer_timeout, (void *)xfer, xfer->ch); 884#endif 885 886 if (xfer->fc->status != FWBUSRESET) 887 xfer->act.hand(xfer); 888 else { 889 printf("fw_xfer_done: pending\n"); 890 if (xfer->fc != NULL) 891 STAILQ_INSERT_TAIL(&xfer->fc->pending, xfer, link); 892 else 893 panic("fw_xfer_done: why xfer->fc is NULL?"); 894 } 895} 896 897/* 898 * To free IEEE1394 XFER structure. 899 */ 900void 901fw_xfer_free( struct fw_xfer* xfer) 902{ 903 int s; 904 if(xfer == NULL ) return; 905 if(xfer->state == FWXF_INQ){ 906 printf("fw_xfer_free FWXF_INQ\n"); 907 s = splfw(); 908 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link); 909 xfer->q->queued --; 910 splx(s); 911 } 912 if(xfer->fc != NULL){ 913 if(xfer->state == FWXF_START){ 914#if 0 /* this could happen if we call fwohci_arcv() before fwohci_txd() */ 915 printf("fw_xfer_free FWXF_START\n"); 916#endif 917 s = splfw(); 918 xfer->q->drain(xfer->fc, xfer); 919 splx(s); 920 } 921 } 922 if(xfer->send.buf != NULL){ 923 free(xfer->send.buf, M_FW); 924 } 925 if(xfer->recv.buf != NULL){ 926 free(xfer->recv.buf, M_FW); 927 } 928 if(xfer->fc != NULL){ 929 fw_tl_free(xfer->fc, xfer); 930 } 931 free(xfer, xfer->malloc); 932} 933 934static void 935fw_asy_callback_free(struct fw_xfer *xfer) 936{ 937#if 0 938 printf("asyreq done state=%d resp=%d\n", 939 xfer->state, xfer->resp); 940#endif 941 fw_xfer_free(xfer); 942} 943 944/* 945 * To configure PHY. 946 */ 947static void 948fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count) 949{ 950 struct fw_xfer *xfer; 951 struct fw_pkt *fp; 952 953 fc->status = FWBUSPHYCONF; 954 955#if 0 956 DELAY(100000); 957#endif 958 xfer = fw_xfer_alloc(M_FWXFER); 959 xfer->send.len = 12; 960 xfer->send.off = 0; 961 xfer->fc = fc; 962 xfer->retry_req = fw_asybusy; 963 xfer->act.hand = fw_asy_callback_free; 964 965 xfer->send.buf = malloc(sizeof(u_int32_t), 966 M_FW, M_NOWAIT | M_ZERO); 967 fp = (struct fw_pkt *)xfer->send.buf; 968 fp->mode.ld[1] = 0; 969 if (root_node >= 0) 970 fp->mode.ld[1] |= htonl((root_node & 0x3f) << 24 | 1 << 23); 971 if (gap_count >= 0) 972 fp->mode.ld[1] |= htonl(1 << 22 | (gap_count & 0x3f) << 16); 973 fp->mode.ld[2] = ~fp->mode.ld[1]; 974/* XXX Dangerous, how to pass PHY packet to device driver */ 975 fp->mode.common.tcode |= FWTCODE_PHY; 976 977 if (firewire_debug) 978 printf("send phy_config root_node=%d gap_count=%d\n", 979 root_node, gap_count); 980 fw_asyreq(fc, -1, xfer); 981} 982 983#if 0 984/* 985 * Dump self ID. 986 */ 987static void 988fw_print_sid(u_int32_t sid) 989{ 990 union fw_self_id *s; 991 s = (union fw_self_id *) &sid; 992 printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d" 993 " p0:%d p1:%d p2:%d i:%d m:%d\n", 994 s->p0.phy_id, s->p0.link_active, s->p0.gap_count, 995 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender, 996 s->p0.power_class, s->p0.port0, s->p0.port1, 997 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets); 998} 999#endif 1000 1001/* 1002 * To receive self ID. 1003 */ 1004void fw_sidrcv(struct firewire_comm* fc, caddr_t buf, u_int len, u_int off) 1005{ 1006 u_int32_t *p, *sid = (u_int32_t *)(buf + off); 1007 union fw_self_id *self_id; 1008 u_int i, j, node, c_port = 0, i_branch = 0; 1009 1010 fc->sid_cnt = len /(sizeof(u_int32_t) * 2); 1011 fc->status = FWBUSINIT; 1012 fc->max_node = fc->nodeid & 0x3f; 1013 CSRARC(fc, NODE_IDS) = ((u_int32_t)fc->nodeid) << 16; 1014 fc->status = FWBUSCYMELECT; 1015 fc->topology_map->crc_len = 2; 1016 fc->topology_map->generation ++; 1017 fc->topology_map->self_id_count = 0; 1018 fc->topology_map->node_count = 0; 1019 fc->speed_map->generation ++; 1020 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4; 1021 self_id = &fc->topology_map->self_id[0]; 1022 for(i = 0; i < fc->sid_cnt; i ++){ 1023 if (sid[1] != ~sid[0]) { 1024 printf("fw_sidrcv: invalid self-id packet\n"); 1025 sid += 2; 1026 continue; 1027 } 1028 *self_id = *((union fw_self_id *)sid); 1029 fc->topology_map->crc_len++; 1030 if(self_id->p0.sequel == 0){ 1031 fc->topology_map->node_count ++; 1032 c_port = 0; 1033#if 0 1034 fw_print_sid(sid[0]); 1035#endif 1036 node = self_id->p0.phy_id; 1037 if(fc->max_node < node){ 1038 fc->max_node = self_id->p0.phy_id; 1039 } 1040 /* XXX I'm not sure this is the right speed_map */ 1041 fc->speed_map->speed[node][node] 1042 = self_id->p0.phy_speed; 1043 for (j = 0; j < node; j ++) { 1044 fc->speed_map->speed[j][node] 1045 = fc->speed_map->speed[node][j] 1046 = min(fc->speed_map->speed[j][j], 1047 self_id->p0.phy_speed); 1048 } 1049 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) && 1050 (self_id->p0.link_active && self_id->p0.contender)) { 1051 fc->irm = self_id->p0.phy_id; 1052 } 1053 if(self_id->p0.port0 >= 0x2){ 1054 c_port++; 1055 } 1056 if(self_id->p0.port1 >= 0x2){ 1057 c_port++; 1058 } 1059 if(self_id->p0.port2 >= 0x2){ 1060 c_port++; 1061 } 1062 } 1063 if(c_port > 2){ 1064 i_branch += (c_port - 2); 1065 } 1066 sid += 2; 1067 self_id++; 1068 fc->topology_map->self_id_count ++; 1069 } 1070 device_printf(fc->bdev, "%d nodes", fc->max_node + 1); 1071 /* CRC */ 1072 fc->topology_map->crc = fw_crc16( 1073 (u_int32_t *)&fc->topology_map->generation, 1074 fc->topology_map->crc_len * 4); 1075 fc->speed_map->crc = fw_crc16( 1076 (u_int32_t *)&fc->speed_map->generation, 1077 fc->speed_map->crc_len * 4); 1078 /* byteswap and copy to CSR */ 1079 p = (u_int32_t *)fc->topology_map; 1080 for (i = 0; i <= fc->topology_map->crc_len; i++) 1081 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++); 1082 p = (u_int32_t *)fc->speed_map; 1083 CSRARC(fc, SPED_MAP) = htonl(*p++); 1084 CSRARC(fc, SPED_MAP + 4) = htonl(*p++); 1085 /* don't byte-swap u_int8_t array */ 1086 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4); 1087 1088 fc->max_hop = fc->max_node - i_branch; 1089#if 1 1090 printf(", maxhop <= %d", fc->max_hop); 1091#endif 1092 1093 if(fc->irm == -1 ){ 1094 printf(", Not found IRM capable node"); 1095 }else{ 1096 printf(", cable IRM = %d", fc->irm); 1097 if (fc->irm == fc->nodeid) 1098 printf(" (me)"); 1099 } 1100 printf("\n"); 1101 1102 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) { 1103 if (fc->irm == ((CSRARC(fc, NODE_IDS) >> 16 ) & 0x3f)) { 1104 fc->status = FWBUSMGRDONE; 1105 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm); 1106 } else { 1107 fc->status = FWBUSMGRELECT; 1108 callout_reset(&fc->bmr_callout, hz/8, 1109 (void *)fw_try_bmr, (void *)fc); 1110 } 1111 } else { 1112 fc->status = FWBUSMGRDONE; 1113#if 0 1114 device_printf(fc->bdev, "BMR = %x\n", 1115 CSRARC(fc, BUS_MGR_ID)); 1116#endif 1117 } 1118 free(buf, M_FW); 1119 if(fc->irm == ((CSRARC(fc, NODE_IDS) >> 16 ) & 0x3f)){ 1120 /* I am BMGR */ 1121 fw_bmr(fc); 1122 } 1123 callout_reset(&fc->busprobe_callout, hz/4, 1124 (void *)fw_bus_probe, (void *)fc); 1125} 1126 1127/* 1128 * To probe devices on the IEEE1394 bus. 1129 */ 1130static void 1131fw_bus_probe(struct firewire_comm *fc) 1132{ 1133 int s; 1134 struct fw_device *fwdev, *next; 1135 1136 s = splfw(); 1137 fc->status = FWBUSEXPLORE; 1138 fc->retry_count = 0; 1139 1140/* 1141 * Invalidate all devices, just after bus reset. Devices 1142 * to be removed has not been seen longer time. 1143 */ 1144 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1145 next = STAILQ_NEXT(fwdev, link); 1146 if (fwdev->status != FWDEVINVAL) { 1147 fwdev->status = FWDEVINVAL; 1148 fwdev->rcnt = 0; 1149 } else if(fwdev->rcnt < FW_MAXDEVRCNT) { 1150 fwdev->rcnt ++; 1151 } else { 1152 STAILQ_REMOVE(&fc->devices, fwdev, fw_device, link); 1153 free(fwdev, M_FW); 1154 } 1155 } 1156 fc->ongonode = 0; 1157 fc->ongoaddr = CSRROMOFF; 1158 fc->ongodev = NULL; 1159 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1160 fw_bus_explore(fc); 1161 splx(s); 1162} 1163 1164/* 1165 * To collect device informations on the IEEE1394 bus. 1166 */ 1167static void 1168fw_bus_explore(struct firewire_comm *fc ) 1169{ 1170 int err = 0; 1171 struct fw_device *fwdev, *pfwdev, *tfwdev; 1172 u_int32_t addr; 1173 struct fw_xfer *xfer; 1174 struct fw_pkt *fp; 1175 1176 if(fc->status != FWBUSEXPLORE) 1177 return; 1178 1179loop: 1180 if(fc->ongonode == fc->nodeid) fc->ongonode++; 1181 1182 if(fc->ongonode > fc->max_node) goto done; 1183 if(fc->ongonode >= 0x3f) goto done; 1184 1185 /* check link */ 1186 /* XXX we need to check phy_id first */ 1187 if (!fc->topology_map->self_id[fc->ongonode].p0.link_active) { 1188 if (firewire_debug) 1189 printf("node%d: link down\n", fc->ongonode); 1190 fc->ongonode++; 1191 goto loop; 1192 } 1193 1194 if(fc->ongoaddr <= CSRROMOFF && 1195 fc->ongoeui.hi == 0xffffffff && 1196 fc->ongoeui.lo == 0xffffffff ){ 1197 fc->ongoaddr = CSRROMOFF; 1198 addr = 0xf0000000 | fc->ongoaddr; 1199 }else if(fc->ongoeui.hi == 0xffffffff ){ 1200 fc->ongoaddr = CSRROMOFF + 0xc; 1201 addr = 0xf0000000 | fc->ongoaddr; 1202 }else if(fc->ongoeui.lo == 0xffffffff ){ 1203 fc->ongoaddr = CSRROMOFF + 0x10; 1204 addr = 0xf0000000 | fc->ongoaddr; 1205 }else if(fc->ongodev == NULL){ 1206 STAILQ_FOREACH(fwdev, &fc->devices, link) 1207 if (FW_EUI64_EQUAL(fwdev->eui, fc->ongoeui)) 1208 break; 1209 if(fwdev != NULL){ 1210 fwdev->dst = fc->ongonode; 1211 fwdev->status = FWDEVATTACHED; 1212 fc->ongonode++; 1213 fc->ongoaddr = CSRROMOFF; 1214 fc->ongodev = NULL; 1215 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1216 goto loop; 1217 } 1218 fwdev = malloc(sizeof(struct fw_device), M_FW, M_NOWAIT); 1219 if(fwdev == NULL) 1220 return; 1221 fwdev->fc = fc; 1222 fwdev->rommax = 0; 1223 fwdev->dst = fc->ongonode; 1224 fwdev->eui.hi = fc->ongoeui.hi; fwdev->eui.lo = fc->ongoeui.lo; 1225 fwdev->status = FWDEVINIT; 1226#if 0 1227 fwdev->speed = CSRARC(fc, SPED_MAP + 8 + fc->ongonode / 4) 1228 >> ((3 - (fc->ongonode % 4)) * 8); 1229#else 1230 fwdev->speed = fc->speed_map->speed[fc->nodeid][fc->ongonode]; 1231#endif 1232 1233 pfwdev = NULL; 1234 STAILQ_FOREACH(tfwdev, &fc->devices, link) { 1235 if (tfwdev->eui.hi > fwdev->eui.hi || 1236 (tfwdev->eui.hi == fwdev->eui.hi && 1237 tfwdev->eui.lo > fwdev->eui.lo)) 1238 break; 1239 pfwdev = tfwdev; 1240 } 1241 if (pfwdev == NULL) 1242 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link); 1243 else 1244 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link); 1245 1246 device_printf(fc->bdev, "New %s device ID:%08x%08x\n", 1247 linkspeed[fwdev->speed], 1248 fc->ongoeui.hi, fc->ongoeui.lo); 1249 1250 fc->ongodev = fwdev; 1251 fc->ongoaddr = CSRROMOFF; 1252 addr = 0xf0000000 | fc->ongoaddr; 1253 }else{ 1254 addr = 0xf0000000 | fc->ongoaddr; 1255 } 1256#if 0 1257 xfer = asyreqq(fc, FWSPD_S100, 0, 0, 1258 ((FWLOCALBUS | fc->ongonode) << 16) | 0xffff , addr, 1259 fw_bus_explore_callback); 1260 if(xfer == NULL) goto done; 1261#else 1262 xfer = fw_xfer_alloc(M_FWXFER); 1263 if(xfer == NULL){ 1264 goto done; 1265 } 1266 xfer->send.len = 16; 1267 xfer->spd = 0; 1268 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 1269 if(xfer->send.buf == NULL){ 1270 fw_xfer_free( xfer); 1271 return; 1272 } 1273 1274 xfer->send.off = 0; 1275 fp = (struct fw_pkt *)xfer->send.buf; 1276 fp->mode.rreqq.dest_hi = htons(0xffff); 1277 fp->mode.rreqq.tlrt = 0; 1278 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1279 fp->mode.rreqq.pri = 0; 1280 fp->mode.rreqq.src = 0; 1281 xfer->dst = FWLOCALBUS | fc->ongonode; 1282 fp->mode.rreqq.dst = htons(xfer->dst); 1283 fp->mode.rreqq.dest_lo = htonl(addr); 1284 xfer->act.hand = fw_bus_explore_callback; 1285 1286 if (firewire_debug) 1287 printf("node%d: explore addr=0x%x\n", 1288 fc->ongonode, fc->ongoaddr); 1289 err = fw_asyreq(fc, -1, xfer); 1290 if(err){ 1291 fw_xfer_free( xfer); 1292 return; 1293 } 1294#endif 1295 return; 1296done: 1297 /* fw_attach_devs */ 1298 fc->status = FWBUSEXPDONE; 1299 if (firewire_debug) 1300 printf("bus_explore done\n"); 1301 fw_attach_dev(fc); 1302 return; 1303 1304} 1305 1306/* Portable Async. request read quad */ 1307struct fw_xfer * 1308asyreqq(struct firewire_comm *fc, u_int8_t spd, u_int8_t tl, u_int8_t rt, 1309 u_int32_t addr_hi, u_int32_t addr_lo, 1310 void (*hand) __P((struct fw_xfer*))) 1311{ 1312 struct fw_xfer *xfer; 1313 struct fw_pkt *fp; 1314 int err; 1315 1316 xfer = fw_xfer_alloc(M_FWXFER); 1317 if(xfer == NULL){ 1318 return NULL; 1319 } 1320 xfer->send.len = 16; 1321 xfer->spd = spd; /* XXX:min(spd, fc->spd) */ 1322 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 1323 if(xfer->send.buf == NULL){ 1324 fw_xfer_free( xfer); 1325 return NULL; 1326 } 1327 1328 xfer->send.off = 0; 1329 fp = (struct fw_pkt *)xfer->send.buf; 1330 fp->mode.rreqq.dest_hi = htons(addr_hi & 0xffff); 1331 if(tl & FWP_TL_VALID){ 1332 fp->mode.rreqq.tlrt = (tl & 0x3f) << 2; 1333 }else{ 1334 fp->mode.rreqq.tlrt = 0; 1335 } 1336 fp->mode.rreqq.tlrt |= rt & 0x3; 1337 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1338 fp->mode.rreqq.pri = 0; 1339 fp->mode.rreqq.src = 0; 1340 xfer->dst = addr_hi >> 16; 1341 fp->mode.rreqq.dst = htons(xfer->dst); 1342 fp->mode.rreqq.dest_lo = htonl(addr_lo); 1343 xfer->act.hand = hand; 1344 1345 err = fw_asyreq(fc, -1, xfer); 1346 if(err){ 1347 fw_xfer_free( xfer); 1348 return NULL; 1349 } 1350 return xfer; 1351} 1352 1353/* 1354 * Callback for the IEEE1394 bus information collection. 1355 */ 1356static void 1357fw_bus_explore_callback(struct fw_xfer *xfer) 1358{ 1359 struct firewire_comm *fc; 1360 struct fw_pkt *sfp,*rfp; 1361 struct csrhdr *chdr; 1362 struct csrdir *csrd; 1363 struct csrreg *csrreg; 1364 u_int32_t offset; 1365 1366 1367 if(xfer == NULL) { 1368 printf("xfer == NULL\n"); 1369 return; 1370 } 1371 fc = xfer->fc; 1372 1373 if (firewire_debug) 1374 printf("node%d: callback addr=0x%x\n", 1375 fc->ongonode, fc->ongoaddr); 1376 1377 if(xfer->resp != 0){ 1378 printf("node%d: resp=%d addr=0x%x\n", 1379 fc->ongonode, xfer->resp, fc->ongoaddr); 1380 fc->retry_count++; 1381 goto nextnode; 1382 } 1383 1384 if(xfer->send.buf == NULL){ 1385 printf("node%d: send.buf=NULL addr=0x%x\n", 1386 fc->ongonode, fc->ongoaddr); 1387 fc->retry_count++; 1388 goto nextnode; 1389 } 1390 sfp = (struct fw_pkt *)xfer->send.buf; 1391 1392 if(xfer->recv.buf == NULL){ 1393 printf("node%d: recv.buf=NULL addr=0x%x\n", 1394 fc->ongonode, fc->ongoaddr); 1395 fc->retry_count++; 1396 goto nextnode; 1397 } 1398 rfp = (struct fw_pkt *)xfer->recv.buf; 1399#if 0 1400 { 1401 u_int32_t *qld; 1402 int i; 1403 qld = (u_int32_t *)xfer->recv.buf; 1404 printf("len:%d\n", xfer->recv.len); 1405 for( i = 0 ; i <= xfer->recv.len && i < 32; i+= 4){ 1406 printf("0x%08x ", ntohl(rfp->mode.ld[i/4])); 1407 if((i % 16) == 15) printf("\n"); 1408 } 1409 if((i % 16) != 15) printf("\n"); 1410 } 1411#endif 1412 if(fc->ongodev == NULL){ 1413 if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 | CSRROMOFF))){ 1414 rfp->mode.rresq.data = ntohl(rfp->mode.rresq.data); 1415 chdr = (struct csrhdr *)(&rfp->mode.rresq.data); 1416/* If CSR is minimal confinguration, more investgation is not needed. */ 1417 if(chdr->info_len == 1){ 1418 if (firewire_debug) 1419 printf("node%d: minimal config\n", 1420 fc->ongonode); 1421 goto nextnode; 1422 }else{ 1423 fc->ongoaddr = CSRROMOFF + 0xc; 1424 } 1425 }else if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 |(CSRROMOFF + 0xc)))){ 1426 fc->ongoeui.hi = ntohl(rfp->mode.rresq.data); 1427 fc->ongoaddr = CSRROMOFF + 0x10; 1428 }else if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 |(CSRROMOFF + 0x10)))){ 1429 fc->ongoeui.lo = ntohl(rfp->mode.rresq.data); 1430 if (fc->ongoeui.hi == 0 && fc->ongoeui.lo == 0) { 1431 if (firewire_debug) 1432 printf("node%d: eui64 is zero.\n", 1433 fc->ongonode); 1434 goto nextnode; 1435 } 1436 fc->ongoaddr = CSRROMOFF; 1437 } 1438 }else{ 1439 fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4] = ntohl(rfp->mode.rresq.data); 1440 if(fc->ongoaddr > fc->ongodev->rommax){ 1441 fc->ongodev->rommax = fc->ongoaddr; 1442 } 1443 csrd = SLIST_FIRST(&fc->ongocsr); 1444 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1445 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1446 offset = CSRROMOFF; 1447 }else{ 1448 chdr = (struct csrhdr *)&fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]; 1449 offset = csrd->off; 1450 } 1451 if(fc->ongoaddr > (CSRROMOFF + 0x14) && fc->ongoaddr != offset){ 1452 csrreg = (struct csrreg *)&fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4]; 1453 if( csrreg->key == 0x81 || csrreg->key == 0xd1){ 1454 csrd = SLIST_FIRST(&fc->csrfree); 1455 if(csrd == NULL){ 1456 goto nextnode; 1457 }else{ 1458 csrd->ongoaddr = fc->ongoaddr; 1459 fc->ongoaddr += csrreg->val * 4; 1460 csrd->off = fc->ongoaddr; 1461 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1462 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1463 goto nextaddr; 1464 } 1465 } 1466 } 1467 fc->ongoaddr += 4; 1468 if(((fc->ongoaddr - offset)/4 > chdr->crc_len) && 1469 (fc->ongodev->rommax < 0x414)){ 1470 if(fc->ongodev->rommax <= 0x414){ 1471 csrd = SLIST_FIRST(&fc->csrfree); 1472 if(csrd == NULL) goto nextnode; 1473 csrd->off = fc->ongoaddr; 1474 csrd->ongoaddr = fc->ongoaddr; 1475 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1476 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1477 } 1478 goto nextaddr; 1479 } 1480 1481 while(((fc->ongoaddr - offset)/4 > chdr->crc_len)){ 1482 if(csrd == NULL){ 1483 goto nextnode; 1484 }; 1485 fc->ongoaddr = csrd->ongoaddr + 4; 1486 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1487 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1488 csrd = SLIST_FIRST(&fc->ongocsr); 1489 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1490 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1491 offset = CSRROMOFF; 1492 }else{ 1493 chdr = (struct csrhdr *)&(fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]); 1494 offset = csrd->off; 1495 } 1496 } 1497 if((fc->ongoaddr - CSRROMOFF) > CSRROMSIZE){ 1498 goto nextnode; 1499 } 1500 } 1501nextaddr: 1502 fw_xfer_free( xfer); 1503 fw_bus_explore(fc); 1504 return; 1505nextnode: 1506 fw_xfer_free( xfer); 1507 fc->ongonode++; 1508/* housekeeping work space */ 1509 fc->ongoaddr = CSRROMOFF; 1510 fc->ongodev = NULL; 1511 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1512 while((csrd = SLIST_FIRST(&fc->ongocsr)) != NULL){ 1513 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1514 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1515 } 1516 fw_bus_explore(fc); 1517 return; 1518} 1519 1520/* 1521 * To obtain CSR register values. 1522 */ 1523u_int32_t 1524getcsrdata(struct fw_device *fwdev, u_int8_t key) 1525{ 1526 int i; 1527 struct csrhdr *chdr; 1528 struct csrreg *creg; 1529 chdr = (struct csrhdr *)&fwdev->csrrom[0]; 1530 for( i = chdr->info_len + 4; i <= fwdev->rommax - CSRROMOFF; i+=4){ 1531 creg = (struct csrreg *)&fwdev->csrrom[i/4]; 1532 if(creg->key == key){ 1533 return (u_int32_t)creg->val; 1534 } 1535 } 1536 return 0; 1537} 1538 1539/* 1540 * To attach sub-devices layer onto IEEE1394 bus. 1541 */ 1542static void 1543fw_attach_dev(struct firewire_comm *fc) 1544{ 1545 struct fw_device *fwdev; 1546 struct fw_xfer *xfer; 1547 int i, err; 1548 device_t *devlistp; 1549 int devcnt; 1550 struct firewire_dev_comm *fdc; 1551 u_int32_t spec, ver; 1552 1553 STAILQ_FOREACH(fwdev, &fc->devices, link) { 1554 if(fwdev->status == FWDEVINIT){ 1555 spec = getcsrdata(fwdev, CSRKEY_SPEC); 1556 if(spec == 0) 1557 continue; 1558 ver = getcsrdata(fwdev, CSRKEY_VER); 1559 if(ver == 0) 1560 continue; 1561 fwdev->maxrec = (fwdev->csrrom[2] >> 12) & 0xf; 1562 1563 device_printf(fc->bdev, "Device "); 1564 switch(spec){ 1565 case CSRVAL_ANSIT10: 1566 switch(ver){ 1567 case CSRVAL_T10SBP2: 1568 printf("SBP-II"); 1569 break; 1570 default: 1571 break; 1572 } 1573 break; 1574 case CSRVAL_1394TA: 1575 switch(ver){ 1576 case CSR_PROTAVC: 1577 printf("AV/C"); 1578 break; 1579 case CSR_PROTCAL: 1580 printf("CAL"); 1581 break; 1582 case CSR_PROTEHS: 1583 printf("EHS"); 1584 break; 1585 case CSR_PROTHAVI: 1586 printf("HAVi"); 1587 break; 1588 case CSR_PROTCAM104: 1589 printf("1394 Cam 1.04"); 1590 break; 1591 case CSR_PROTCAM120: 1592 printf("1394 Cam 1.20"); 1593 break; 1594 case CSR_PROTCAM130: 1595 printf("1394 Cam 1.30"); 1596 break; 1597 case CSR_PROTDPP: 1598 printf("1394 Direct print"); 1599 break; 1600 case CSR_PROTIICP: 1601 printf("Industrial & Instrument"); 1602 break; 1603 default: 1604 printf("unknown 1394TA"); 1605 break; 1606 } 1607 break; 1608 default: 1609 printf("unknown spec"); 1610 break; 1611 } 1612 fwdev->status = FWDEVATTACHED; 1613 printf("\n"); 1614 } 1615 } 1616 err = device_get_children(fc->bdev, &devlistp, &devcnt); 1617 if( err != 0 ) 1618 return; 1619 for( i = 0 ; i < devcnt ; i++){ 1620 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 1621 fdc = device_get_softc(devlistp[i]); 1622 if (fdc->post_explore != NULL) 1623 fdc->post_explore(fdc); 1624 } 1625 } 1626 free(devlistp, M_TEMP); 1627 1628 /* call pending handlers */ 1629 i = 0; 1630 while ((xfer = STAILQ_FIRST(&fc->pending))) { 1631 STAILQ_REMOVE_HEAD(&fc->pending, link); 1632 i++; 1633 if (xfer->act.hand) 1634 xfer->act.hand(xfer); 1635 } 1636 if (i > 0) 1637 printf("fw_attach_dev: %d pending handlers called\n", i); 1638 if (fc->retry_count > 0) { 1639 printf("retry_count = %d\n", fc->retry_count); 1640 callout_reset(&fc->retry_probe_callout, hz*2, 1641 (void *)fc->ibr, (void *)fc); 1642 } 1643 return; 1644} 1645 1646/* 1647 * To allocate uniq transaction label. 1648 */ 1649static int 1650fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer) 1651{ 1652 u_int i; 1653 struct tlabel *tl, *tmptl; 1654 int s; 1655 static u_int32_t label = 0; 1656 1657 s = splfw(); 1658 for( i = 0 ; i < 0x40 ; i ++){ 1659 label = (label + 1) & 0x3f; 1660 for(tmptl = STAILQ_FIRST(&fc->tlabels[label]); 1661 tmptl != NULL; tmptl = STAILQ_NEXT(tmptl, link)){ 1662 if(tmptl->xfer->dst == xfer->dst) break; 1663 } 1664 if(tmptl == NULL) { 1665 tl = malloc(sizeof(struct tlabel),M_FW,M_NOWAIT); 1666 if (tl == NULL) { 1667 splx(s); 1668 return (-1); 1669 } 1670 tl->xfer = xfer; 1671 STAILQ_INSERT_TAIL(&fc->tlabels[label], tl, link); 1672 splx(s); 1673 if (firewire_debug > 1) 1674 printf("fw_get_tlabel: dst=%d tl=%d\n", 1675 xfer->dst, label); 1676 return(label); 1677 } 1678 } 1679 splx(s); 1680 1681 printf("fw_get_tlabel: no free tlabel\n"); 1682 return(-1); 1683} 1684 1685/* 1686 * Generic packet receving process. 1687 */ 1688void 1689fw_rcv(struct firewire_comm* fc, caddr_t buf, u_int len, u_int sub, u_int off, u_int spd) 1690{ 1691 struct fw_pkt *fp, *resfp; 1692 struct fw_xfer *xfer; 1693 struct fw_bind *bind; 1694 struct firewire_softc *sc; 1695 int s; 1696#if 0 1697 { 1698 u_int32_t *qld; 1699 int i; 1700 qld = (u_int32_t *)buf; 1701 printf("spd %d len:%d\n", spd, len); 1702 for( i = 0 ; i <= len && i < 32; i+= 4){ 1703 printf("0x%08x ", ntohl(qld[i/4])); 1704 if((i % 16) == 15) printf("\n"); 1705 } 1706 if((i % 16) != 15) printf("\n"); 1707 } 1708#endif 1709 fp = (struct fw_pkt *)(buf + off); 1710 switch(fp->mode.common.tcode){ 1711 case FWTCODE_WRES: 1712 case FWTCODE_RRESQ: 1713 case FWTCODE_RRESB: 1714 case FWTCODE_LRES: 1715 xfer = fw_tl2xfer(fc, ntohs(fp->mode.hdr.src), 1716 fp->mode.hdr.tlrt >> 2); 1717 if(xfer == NULL) { 1718 printf("fw_rcv: unknown response " 1719 "tcode=%d src=0x%x tl=%x rt=%d data=0x%x\n", 1720 fp->mode.common.tcode, 1721 ntohs(fp->mode.hdr.src), 1722 fp->mode.hdr.tlrt >> 2, 1723 fp->mode.hdr.tlrt & 3, 1724 fp->mode.rresq.data); 1725#if 1 1726 printf("try ad-hoc work around!!\n"); 1727 xfer = fw_tl2xfer(fc, ntohs(fp->mode.hdr.src), 1728 (fp->mode.hdr.tlrt >> 2)^3); 1729 if (xfer == NULL) { 1730 printf("no use...\n"); 1731 goto err; 1732 } 1733#else 1734 goto err; 1735#endif 1736 } 1737 switch(xfer->act_type){ 1738 case FWACT_XFER: 1739 if((xfer->sub >= 0) && 1740 ((fc->ir[xfer->sub]->flag & FWXFERQ_MODEMASK ) == 0)){ 1741 xfer->resp = EINVAL; 1742 fw_xfer_done(xfer); 1743 goto err; 1744 } 1745 xfer->recv.len = len; 1746 xfer->recv.off = off; 1747 xfer->recv.buf = buf; 1748 xfer->resp = 0; 1749 fw_xfer_done(xfer); 1750 return; 1751 break; 1752 case FWACT_CH: 1753 default: 1754 goto err; 1755 break; 1756 } 1757 break; 1758 case FWTCODE_WREQQ: 1759 case FWTCODE_WREQB: 1760 case FWTCODE_RREQQ: 1761 case FWTCODE_RREQB: 1762 case FWTCODE_LREQ: 1763 bind = fw_bindlookup(fc, ntohs(fp->mode.rreqq.dest_hi), 1764 ntohl(fp->mode.rreqq.dest_lo)); 1765 if(bind == NULL){ 1766#if __FreeBSD_version >= 500000 1767 printf("Unknown service addr 0x%08x:0x%08x tcode=%x\n", 1768#else 1769 printf("Unknown service addr 0x%08x:0x%08lx tcode=%x\n", 1770#endif 1771 ntohs(fp->mode.rreqq.dest_hi), 1772 ntohl(fp->mode.rreqq.dest_lo), 1773 fp->mode.common.tcode); 1774 if (fc->status == FWBUSRESET) { 1775 printf("fw_rcv: cannot response(bus reset)!\n"); 1776 goto err; 1777 } 1778 xfer = fw_xfer_alloc(M_FWXFER); 1779 if(xfer == NULL){ 1780 return; 1781 } 1782 xfer->spd = spd; 1783 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 1784 resfp = (struct fw_pkt *)xfer->send.buf; 1785 switch(fp->mode.common.tcode){ 1786 case FWTCODE_WREQQ: 1787 case FWTCODE_WREQB: 1788 resfp->mode.hdr.tcode = FWTCODE_WRES; 1789 xfer->send.len = 12; 1790 break; 1791 case FWTCODE_RREQQ: 1792 resfp->mode.hdr.tcode = FWTCODE_RRESQ; 1793 xfer->send.len = 16; 1794 break; 1795 case FWTCODE_RREQB: 1796 resfp->mode.hdr.tcode = FWTCODE_RRESB; 1797 xfer->send.len = 16; 1798 break; 1799 case FWTCODE_LREQ: 1800 resfp->mode.hdr.tcode = FWTCODE_LRES; 1801 xfer->send.len = 16; 1802 break; 1803 } 1804 resfp->mode.hdr.dst = fp->mode.hdr.src; 1805 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt; 1806 resfp->mode.hdr.pri = fp->mode.hdr.pri; 1807 resfp->mode.rresb.rtcode = 7; 1808 resfp->mode.rresb.extcode = 0; 1809 resfp->mode.rresb.len = 0; 1810/* 1811 xfer->act.hand = fw_asy_callback; 1812*/ 1813 xfer->act.hand = fw_xfer_free; 1814 if(fw_asyreq(fc, -1, xfer)){ 1815 fw_xfer_free( xfer); 1816 return; 1817 } 1818 goto err; 1819 } 1820 switch(bind->xfer->act_type){ 1821 case FWACT_XFER: 1822 xfer = fw_xfer_alloc(M_FWXFER); 1823 if(xfer == NULL) goto err; 1824 xfer->fc = bind->xfer->fc; 1825 xfer->sc = bind->xfer->sc; 1826 xfer->recv.buf = buf; 1827 xfer->recv.len = len; 1828 xfer->recv.off = off; 1829 xfer->spd = spd; 1830 xfer->act.hand = bind->xfer->act.hand; 1831 if (fc->status != FWBUSRESET) 1832 xfer->act.hand(xfer); 1833 else 1834 STAILQ_INSERT_TAIL(&fc->pending, xfer, link); 1835 return; 1836 break; 1837 case FWACT_CH: 1838 if(fc->ir[bind->xfer->sub]->queued >= 1839 fc->ir[bind->xfer->sub]->maxq){ 1840 device_printf(fc->bdev, 1841 "Discard a packet %x %d\n", 1842 bind->xfer->sub, 1843 fc->ir[bind->xfer->sub]->queued); 1844 goto err; 1845 } 1846 xfer = fw_xfer_alloc(M_FWXFER); 1847 if(xfer == NULL) goto err; 1848 xfer->recv.buf = buf; 1849 xfer->recv.len = len; 1850 xfer->recv.off = off; 1851 xfer->spd = spd; 1852 s = splfw(); 1853 fc->ir[bind->xfer->sub]->queued++; 1854 STAILQ_INSERT_TAIL(&fc->ir[bind->xfer->sub]->q, xfer, link); 1855 splx(s); 1856 1857 wakeup((caddr_t)fc->ir[bind->xfer->sub]); 1858 1859 return; 1860 break; 1861 default: 1862 goto err; 1863 break; 1864 } 1865 break; 1866 case FWTCODE_STREAM: 1867 { 1868 struct fw_xferq *xferq; 1869 1870 xferq = fc->ir[sub]; 1871#if 0 1872 printf("stream rcv dma %d len %d off %d spd %d\n", 1873 sub, len, off, spd); 1874#endif 1875 if(xferq->queued >= xferq->maxq) { 1876 printf("receive queue is full\n"); 1877 goto err; 1878 } 1879 xfer = fw_xfer_alloc(M_FWXFER); 1880 if(xfer == NULL) goto err; 1881 xfer->recv.buf = buf; 1882 xfer->recv.len = len; 1883 xfer->recv.off = off; 1884 xfer->spd = spd; 1885 s = splfw(); 1886 xferq->queued++; 1887 STAILQ_INSERT_TAIL(&xferq->q, xfer, link); 1888 splx(s); 1889 sc = device_get_softc(fc->bdev); 1890#if __FreeBSD_version >= 500000 1891 if (SEL_WAITING(&xferq->rsel)) 1892#else 1893 if (&xferq->rsel.si_pid != 0) 1894#endif 1895 selwakeup(&xferq->rsel); 1896 if (xferq->flag & FWXFERQ_WAKEUP) { 1897 xferq->flag &= ~FWXFERQ_WAKEUP; 1898 wakeup((caddr_t)xferq); 1899 } 1900 if (xferq->flag & FWXFERQ_HANDLER) { 1901 xferq->hand(xferq); 1902 } 1903 return; 1904 break; 1905 } 1906 default: 1907 printf("fw_rcv: unknow tcode\n"); 1908 break; 1909 } 1910err: 1911 free(buf, M_FW); 1912} 1913 1914/* 1915 * Post process for Bus Manager election process. 1916 */ 1917static void 1918fw_try_bmr_callback(struct fw_xfer *xfer) 1919{ 1920 struct fw_pkt *rfp; 1921 struct firewire_comm *fc; 1922 int bmr; 1923 1924 if (xfer == NULL) 1925 return; 1926 fc = xfer->fc; 1927 if (xfer->resp != 0) 1928 goto error; 1929 if (xfer->send.buf == NULL) 1930 goto error; 1931 if (xfer->recv.buf == NULL) 1932 goto error; 1933 rfp = (struct fw_pkt *)xfer->recv.buf; 1934 if (rfp->mode.lres.rtcode != FWRCODE_COMPLETE) 1935 goto error; 1936 1937 bmr = ntohl(rfp->mode.lres.payload[0]); 1938 if (bmr == 0x3f) 1939 bmr = fc->nodeid; 1940 1941 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f); 1942 device_printf(fc->bdev, "new bus manager %d ", 1943 CSRARC(fc, BUS_MGR_ID)); 1944 if(bmr == fc->nodeid){ 1945 printf("(me)\n"); 1946 fw_bmr(fc); 1947 }else{ 1948 printf("\n"); 1949 } 1950error: 1951 fw_xfer_free(xfer); 1952} 1953 1954/* 1955 * To candidate Bus Manager election process. 1956 */ 1957static void 1958fw_try_bmr(void *arg) 1959{ 1960 struct fw_xfer *xfer; 1961 struct firewire_comm *fc = (struct firewire_comm *)arg; 1962 struct fw_pkt *fp; 1963 int err = 0; 1964 1965 xfer = fw_xfer_alloc(M_FWXFER); 1966 if(xfer == NULL){ 1967 return; 1968 } 1969 xfer->send.len = 24; 1970 xfer->spd = 0; 1971 xfer->send.buf = malloc(24, M_FW, M_NOWAIT); 1972 if(xfer->send.buf == NULL){ 1973 fw_xfer_free( xfer); 1974 return; 1975 } 1976 1977 fc->status = FWBUSMGRELECT; 1978 1979 xfer->send.off = 0; 1980 fp = (struct fw_pkt *)xfer->send.buf; 1981 fp->mode.lreq.dest_hi = htons(0xffff); 1982 fp->mode.lreq.tlrt = 0; 1983 fp->mode.lreq.tcode = FWTCODE_LREQ; 1984 fp->mode.lreq.pri = 0; 1985 fp->mode.lreq.src = 0; 1986 fp->mode.lreq.len = htons(8); 1987 fp->mode.lreq.extcode = htons(FW_LREQ_CMPSWAP); 1988 xfer->dst = FWLOCALBUS | fc->irm; 1989 fp->mode.lreq.dst = htons(xfer->dst); 1990 fp->mode.lreq.dest_lo = htonl(0xf0000000 | BUS_MGR_ID); 1991 fp->mode.lreq.payload[0] = htonl(0x3f); 1992 fp->mode.lreq.payload[1] = htonl(fc->nodeid); 1993 xfer->act_type = FWACT_XFER; 1994 xfer->act.hand = fw_try_bmr_callback; 1995 1996 err = fw_asyreq(fc, -1, xfer); 1997 if(err){ 1998 fw_xfer_free( xfer); 1999 return; 2000 } 2001 return; 2002} 2003 2004#ifdef FW_VMACCESS 2005/* 2006 * Software implementation for physical memory block access. 2007 * XXX:Too slow, usef for debug purpose only. 2008 */ 2009static void 2010fw_vmaccess(struct fw_xfer *xfer){ 2011 struct fw_pkt *rfp, *sfp = NULL; 2012 u_int32_t *ld = (u_int32_t *)(xfer->recv.buf + xfer->recv.off); 2013 2014 printf("vmaccess spd:%2x len:%03x %d data:%08x %08x %08x %08x\n", 2015 xfer->spd, xfer->recv.len, xfer->recv.off, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 2016 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 2017 if(xfer->resp != 0){ 2018 fw_xfer_free( xfer); 2019 return; 2020 } 2021 if(xfer->recv.buf == NULL){ 2022 fw_xfer_free( xfer); 2023 return; 2024 } 2025 rfp = (struct fw_pkt *)xfer->recv.buf; 2026 switch(rfp->mode.hdr.tcode){ 2027 /* XXX need fix for 64bit arch */ 2028 case FWTCODE_WREQB: 2029 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2030 xfer->send.len = 12; 2031 sfp = (struct fw_pkt *)xfer->send.buf; 2032 bcopy(rfp->mode.wreqb.payload, 2033 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len)); 2034 sfp->mode.wres.tcode = FWTCODE_WRES; 2035 sfp->mode.wres.rtcode = 0; 2036 break; 2037 case FWTCODE_WREQQ: 2038 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2039 xfer->send.len = 12; 2040 sfp->mode.wres.tcode = FWTCODE_WRES; 2041 *((u_int32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data; 2042 sfp->mode.wres.rtcode = 0; 2043 break; 2044 case FWTCODE_RREQB: 2045 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_FW, M_NOWAIT); 2046 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len); 2047 sfp = (struct fw_pkt *)xfer->send.buf; 2048 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo), 2049 sfp->mode.rresb.payload, (u_int16_t)ntohs(rfp->mode.rreqb.len)); 2050 sfp->mode.rresb.tcode = FWTCODE_RRESB; 2051 sfp->mode.rresb.len = rfp->mode.rreqb.len; 2052 sfp->mode.rresb.rtcode = 0; 2053 sfp->mode.rresb.extcode = 0; 2054 break; 2055 case FWTCODE_RREQQ: 2056 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 2057 xfer->send.len = 16; 2058 sfp = (struct fw_pkt *)xfer->send.buf; 2059 sfp->mode.rresq.data = *(u_int32_t *)(ntohl(rfp->mode.rreqq.dest_lo)); 2060 sfp->mode.wres.tcode = FWTCODE_RRESQ; 2061 sfp->mode.rresb.rtcode = 0; 2062 break; 2063 default: 2064 fw_xfer_free( xfer); 2065 return; 2066 } 2067 xfer->send.off = 0; 2068 sfp->mode.hdr.dst = rfp->mode.hdr.src; 2069 xfer->dst = ntohs(rfp->mode.hdr.src); 2070 xfer->act.hand = fw_xfer_free; 2071 xfer->retry_req = fw_asybusy; 2072 2073 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt; 2074 sfp->mode.hdr.pri = 0; 2075 2076 fw_asyreq(xfer->fc, -1, xfer); 2077/**/ 2078 return; 2079} 2080#endif 2081 2082/* 2083 * CRC16 check-sum for IEEE1394 register blocks. 2084 */ 2085u_int16_t 2086fw_crc16(u_int32_t *ptr, u_int32_t len){ 2087 u_int32_t i, sum, crc = 0; 2088 int shift; 2089 len = (len + 3) & ~3; 2090 for(i = 0 ; i < len ; i+= 4){ 2091 for( shift = 28 ; shift >= 0 ; shift -= 4){ 2092 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf; 2093 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum; 2094 } 2095 crc &= 0xffff; 2096 } 2097 return((u_int16_t) crc); 2098} 2099 2100static int 2101fw_bmr(struct firewire_comm *fc) 2102{ 2103 struct fw_device fwdev; 2104 int cmstr; 2105 2106 /* XXX Assume that the current root node is cycle master capable */ 2107 cmstr = fc->max_node; 2108 /* If I am the bus manager, optimize gapcount */ 2109 if(fc->max_hop <= MAX_GAPHOP ){ 2110 fw_phy_config(fc, (fc->max_node > 0)?cmstr:-1, 2111 gap_cnt[fc->max_hop]); 2112 } 2113 /* If we are the cycle master, nothing to do */ 2114 if (cmstr == fc->nodeid) 2115 return 0; 2116 /* Bus probe has not finished, make dummy fwdev for cmstr */ 2117 bzero(&fwdev, sizeof(fwdev)); 2118 fwdev.fc = fc; 2119 fwdev.dst = cmstr; 2120 fwdev.speed = 0; 2121 fwdev.maxrec = 8; /* 512 */ 2122 fwdev.status = FWDEVINIT; 2123 /* Set cmstr bit on the cycle master */ 2124 fwmem_write_quad(&fwdev, NULL, 0/*spd*/, 2125 0xffff, 0xf0000000 | STATE_SET, 1 << 16, 2126 fw_asy_callback_free); 2127 2128 return 0; 2129} 2130 2131DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,0,0); 2132MODULE_VERSION(firewire, 1); 2133