firewire.c revision 110270
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 110270 2003-02-03 08:10:50Z 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} 330 331/* 332 * The attach routine. 333 */ 334static int 335firewire_attach( device_t dev ) 336{ 337 int i, unitmask, mn; 338 struct firewire_softc *sc = device_get_softc(dev); 339 device_t pa = device_get_parent(dev); 340 struct firewire_comm *fc; 341 dev_t d; 342 343 fc = (struct firewire_comm *)device_get_softc(pa); 344 sc->fc = fc; 345 346 unitmask = UNIT2MIN(device_get_unit(dev)); 347 348 if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA; 349 for ( i = 0 ; i < fc->nisodma ; i++ ){ 350 mn = unitmask | i; 351 /* XXX device name should be improved */ 352 d = make_dev(&firewire_cdevsw, unit2minor(mn), 353 UID_ROOT, GID_OPERATOR, 0660, 354 "fw%x", mn); 355#if __FreeBSD_version >= 500000 356 if (i == 0) 357 sc->dev = d; 358 else 359 dev_depends(sc->dev, d); 360#else 361 sc->dev[i] = d; 362#endif 363 } 364 d = make_dev(&firewire_cdevsw, unit2minor(unitmask | FWMEM_FLAG), 365 UID_ROOT, GID_OPERATOR, 0660, 366 "fwmem%d", device_get_unit(dev)); 367#if __FreeBSD_version >= 500000 368 dev_depends(sc->dev, d); 369#else 370 sc->dev[i] = d; 371#endif 372#if __FreeBSD_version >= 500000 373#define CALLOUT_INIT(x) callout_init(x, 0 /* mpsafe */) 374#else 375#define CALLOUT_INIT(x) callout_init(x) 376#endif 377 CALLOUT_INIT(&sc->fc->timeout_callout); 378 CALLOUT_INIT(&sc->fc->bmr_callout); 379 CALLOUT_INIT(&sc->fc->retry_probe_callout); 380 CALLOUT_INIT(&sc->fc->busprobe_callout); 381 382 callout_reset(&sc->fc->timeout_callout, hz * 10, 383 (void *)sc->fc->timeout, (void *)sc->fc); 384 385 /* Locate our children */ 386 bus_generic_probe(dev); 387 388 /* launch attachement of the added children */ 389 bus_generic_attach(dev); 390 391 /* bus_reset */ 392 fc->ibr(fc); 393 394 return 0; 395} 396 397/* 398 * Attach it as child. 399 */ 400static device_t 401firewire_add_child(device_t dev, int order, const char *name, int unit) 402{ 403 device_t child; 404 struct firewire_softc *sc; 405 406 sc = (struct firewire_softc *)device_get_softc(dev); 407 child = device_add_child(dev, name, unit); 408 if (child) { 409 device_set_ivars(child, sc->fc); 410 device_probe_and_attach(child); 411 } 412 413 return child; 414} 415 416/* 417 * Dettach it. 418 */ 419static int 420firewire_detach( device_t dev ) 421{ 422 struct firewire_softc *sc; 423 424 sc = (struct firewire_softc *)device_get_softc(dev); 425 426#if __FreeBSD_version >= 500000 427 destroy_dev(sc->dev); 428#else 429 { 430 int j; 431 for (j = 0 ; j < sc->fc->nisodma + 1; j++) 432 destroy_dev(sc->dev[j]); 433 } 434#endif 435 /* XXX xfree_free and untimeout on all xfers */ 436 callout_stop(&sc->fc->timeout_callout); 437 callout_stop(&sc->fc->bmr_callout); 438 callout_stop(&sc->fc->retry_probe_callout); 439 callout_stop(&sc->fc->busprobe_callout); 440 free(sc->fc->topology_map, M_FW); 441 free(sc->fc->speed_map, M_FW); 442 bus_generic_detach(dev); 443 return(0); 444} 445#if 0 446static int 447firewire_shutdown( device_t dev ) 448{ 449 return 0; 450} 451#endif 452 453/* 454 * Called after bus reset. 455 */ 456void 457fw_busreset(struct firewire_comm *fc) 458{ 459 int i; 460 struct fw_xfer *xfer; 461 462 switch(fc->status){ 463 case FWBUSMGRELECT: 464 callout_stop(&fc->bmr_callout); 465 break; 466 default: 467 break; 468 } 469 fc->status = FWBUSRESET; 470/* XXX: discard all queued packet */ 471 while((xfer = STAILQ_FIRST(&fc->atq->q)) != NULL){ 472 STAILQ_REMOVE_HEAD(&fc->atq->q, link); 473 xfer->resp = EAGAIN; 474 switch(xfer->act_type){ 475 case FWACT_XFER: 476 fw_xfer_done(xfer); 477 break; 478 default: 479 break; 480 } 481 fw_xfer_free( xfer); 482 } 483 while((xfer = STAILQ_FIRST(&fc->ats->q)) != NULL){ 484 STAILQ_REMOVE_HEAD(&fc->ats->q, link); 485 xfer->resp = EAGAIN; 486 switch(xfer->act_type){ 487 case FWACT_XFER: 488 fw_xfer_done(xfer); 489 default: 490 break; 491 } 492 fw_xfer_free( xfer); 493 } 494 for(i = 0; i < fc->nisodma; i++) 495 while((xfer = STAILQ_FIRST(&fc->it[i]->q)) != NULL){ 496 STAILQ_REMOVE_HEAD(&fc->it[i]->q, link); 497 xfer->resp = 0; 498 switch(xfer->act_type){ 499 case FWACT_XFER: 500 fw_xfer_done(xfer); 501 break; 502 default: 503 break; 504 } 505 fw_xfer_free( xfer); 506 } 507 508 CSRARC(fc, STATE_CLEAR) 509 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 510 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 511 CSRARC(fc, NODE_IDS) = 0x3f; 512 513 CSRARC(fc, TOPO_MAP + 8) = 0; 514 fc->irm = -1; 515 516 fc->max_node = -1; 517 518 for(i = 2; i < 0x100/4 - 2 ; i++){ 519 CSRARC(fc, SPED_MAP + i * 4) = 0; 520 } 521 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 522 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 523 CSRARC(fc, RESET_START) = 0; 524 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0; 525 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19; 526 CSRARC(fc, CYCLE_TIME) = 0x0; 527 CSRARC(fc, BUS_TIME) = 0x0; 528 CSRARC(fc, BUS_MGR_ID) = 0x3f; 529 CSRARC(fc, BANDWIDTH_AV) = 4915; 530 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff; 531 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff; 532 CSRARC(fc, IP_CHANNELS) = (1 << 31); 533 534 CSRARC(fc, CONF_ROM) = 0x04 << 24; 535 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */ 536 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 | 537 1 << 28 | 0xff << 16 | 0x09 << 8; 538 CSRARC(fc, CONF_ROM + 0xc) = 0; 539 540/* DV depend CSRs see blue book */ 541 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON; 542 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON; 543 544 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 ); 545 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 546} 547 548/* Call once after reboot */ 549void fw_init(struct firewire_comm *fc) 550{ 551 int i; 552 struct csrdir *csrd; 553#ifdef FW_VMACCESS 554 struct fw_xfer *xfer; 555 struct fw_bind *fwb; 556#endif 557 558 fc->max_asyretry = FW_MAXASYRTY; 559 560 fc->arq->queued = 0; 561 fc->ars->queued = 0; 562 fc->atq->queued = 0; 563 fc->ats->queued = 0; 564 565 fc->arq->psize = PAGE_SIZE; 566 fc->ars->psize = PAGE_SIZE; 567 fc->atq->psize = 0; 568 fc->ats->psize = 0; 569 570 571 fc->arq->buf = NULL; 572 fc->ars->buf = NULL; 573 fc->atq->buf = NULL; 574 fc->ats->buf = NULL; 575 576 fc->arq->flag = FWXFERQ_PACKET; 577 fc->ars->flag = FWXFERQ_PACKET; 578 fc->atq->flag = FWXFERQ_PACKET; 579 fc->ats->flag = FWXFERQ_PACKET; 580 581 STAILQ_INIT(&fc->atq->q); 582 STAILQ_INIT(&fc->ats->q); 583 584 for( i = 0 ; i < fc->nisodma ; i ++ ){ 585 fc->it[i]->queued = 0; 586 fc->ir[i]->queued = 0; 587 588 fc->it[i]->start = NULL; 589 fc->ir[i]->start = NULL; 590 591 fc->it[i]->buf = NULL; 592 fc->ir[i]->buf = NULL; 593 594 fc->it[i]->flag = FWXFERQ_STREAM; 595 fc->ir[i]->flag = FWXFERQ_STREAM; 596 597 STAILQ_INIT(&fc->it[i]->q); 598 STAILQ_INIT(&fc->ir[i]->q); 599 600 STAILQ_INIT(&fc->it[i]->binds); 601 STAILQ_INIT(&fc->ir[i]->binds); 602 } 603 604 fc->arq->maxq = FWMAXQUEUE; 605 fc->ars->maxq = FWMAXQUEUE; 606 fc->atq->maxq = FWMAXQUEUE; 607 fc->ats->maxq = FWMAXQUEUE; 608 609 for( i = 0 ; i < fc->nisodma ; i++){ 610 fc->ir[i]->maxq = FWMAXQUEUE; 611 fc->it[i]->maxq = FWMAXQUEUE; 612 } 613/* Initialize csr registers */ 614 fc->topology_map = (struct fw_topology_map *)malloc( 615 sizeof(struct fw_topology_map), 616 M_FW, M_NOWAIT | M_ZERO); 617 fc->speed_map = (struct fw_speed_map *)malloc( 618 sizeof(struct fw_speed_map), 619 M_FW, M_NOWAIT | M_ZERO); 620 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16; 621 CSRARC(fc, TOPO_MAP + 4) = 1; 622 CSRARC(fc, SPED_MAP) = 0x3f1 << 16; 623 CSRARC(fc, SPED_MAP + 4) = 1; 624 625 STAILQ_INIT(&fc->devices); 626 STAILQ_INIT(&fc->pending); 627 628/* Initialize csr ROM work space */ 629 SLIST_INIT(&fc->ongocsr); 630 SLIST_INIT(&fc->csrfree); 631 for( i = 0 ; i < FWMAXCSRDIR ; i++){ 632 csrd = (struct csrdir *) malloc(sizeof(struct csrdir), M_FW,M_NOWAIT); 633 if(csrd == NULL) break; 634 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 635 } 636 637/* Initialize Async handlers */ 638 STAILQ_INIT(&fc->binds); 639 for( i = 0 ; i < 0x40 ; i++){ 640 STAILQ_INIT(&fc->tlabels[i]); 641 } 642 643/* DV depend CSRs see blue book */ 644#if 0 645 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */ 646 CSRARC(fc, oPCR) = 0x8000007a; 647 for(i = 4 ; i < 0x7c/4 ; i+=4){ 648 CSRARC(fc, i + oPCR) = 0x8000007a; 649 } 650 651 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */ 652 CSRARC(fc, iPCR) = 0x803f0000; 653 for(i = 4 ; i < 0x7c/4 ; i+=4){ 654 CSRARC(fc, i + iPCR) = 0x0; 655 } 656#endif 657 658 659#ifdef FW_VMACCESS 660 xfer = fw_xfer_alloc(); 661 if(xfer == NULL) return; 662 663 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_FW, M_NOWAIT); 664 if(fwb == NULL){ 665 fw_xfer_free(xfer); 666 } 667 xfer->act.hand = fw_vmaccess; 668 xfer->act_type = FWACT_XFER; 669 xfer->fc = fc; 670 xfer->sc = NULL; 671 672 fwb->start_hi = 0x2; 673 fwb->start_lo = 0; 674 fwb->addrlen = 0xffffffff; 675 fwb->xfer = xfer; 676 fw_bindadd(fc, fwb); 677#endif 678} 679 680/* 681 * To lookup binded process from IEEE1394 address. 682 */ 683struct fw_bind * 684fw_bindlookup(struct firewire_comm *fc, u_int32_t dest_hi, u_int32_t dest_lo) 685{ 686 struct fw_bind *tfw; 687 for(tfw = STAILQ_FIRST(&fc->binds) ; tfw != NULL ; 688 tfw = STAILQ_NEXT(tfw, fclist)){ 689 if(tfw->xfer->act_type != FWACT_NULL && 690 tfw->start_hi == dest_hi && 691 tfw->start_lo <= dest_lo && 692 (tfw->start_lo + tfw->addrlen) > dest_lo){ 693 return(tfw); 694 } 695 } 696 return(NULL); 697} 698 699/* 700 * To bind IEEE1394 address block to process. 701 */ 702int 703fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb) 704{ 705 struct fw_bind *tfw, *tfw2 = NULL; 706 int err = 0; 707 tfw = STAILQ_FIRST(&fc->binds); 708 if(tfw == NULL){ 709 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 710 goto out; 711 } 712 if((tfw->start_hi > fwb->start_hi) || 713 (tfw->start_hi == fwb->start_hi && 714 (tfw->start_lo > (fwb->start_lo + fwb->addrlen)))){ 715 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 716 goto out; 717 } 718 for(; tfw != NULL; tfw = STAILQ_NEXT(tfw, fclist)){ 719 if((tfw->start_hi < fwb->start_hi) || 720 (tfw->start_hi == fwb->start_hi && 721 (tfw->start_lo + tfw->addrlen) < fwb->start_lo)){ 722 tfw2 = STAILQ_NEXT(tfw, fclist); 723 if(tfw2 == NULL) 724 break; 725 if((tfw2->start_hi > fwb->start_hi) || 726 (tfw2->start_hi == fwb->start_hi && 727 tfw2->start_lo > (fwb->start_lo + fwb->addrlen))){ 728 break; 729 }else{ 730 err = EBUSY; 731 goto out; 732 } 733 } 734 } 735 if(tfw != NULL){ 736 STAILQ_INSERT_AFTER(&fc->binds, tfw, fwb, fclist); 737 }else{ 738 STAILQ_INSERT_TAIL(&fc->binds, fwb, fclist); 739 } 740out: 741 if(!err && fwb->xfer->act_type == FWACT_CH){ 742 STAILQ_INSERT_HEAD(&fc->ir[fwb->xfer->sub]->binds, fwb, chlist); 743 } 744 return err; 745} 746 747/* 748 * To free IEEE1394 address block. 749 */ 750int 751fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb) 752{ 753 int s; 754 755 s = splfw(); 756 /* shall we check the existance? */ 757 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist); 758 splx(s); 759 if (fwb->xfer) 760 fw_xfer_free(fwb->xfer); 761 762 return 0; 763} 764 765/* 766 * To free transaction label. 767 */ 768static void 769fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer) 770{ 771 struct tlabel *tl; 772 int s = splfw(); 773 774 for( tl = STAILQ_FIRST(&fc->tlabels[xfer->tl]); tl != NULL; 775 tl = STAILQ_NEXT(tl, link)){ 776 if(tl->xfer == xfer){ 777 STAILQ_REMOVE(&fc->tlabels[xfer->tl], tl, tlabel, link); 778 free(tl, M_FW); 779 splx(s); 780 return; 781 } 782 } 783 splx(s); 784 return; 785} 786 787/* 788 * To obtain XFER structure by transaction label. 789 */ 790static struct fw_xfer * 791fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel) 792{ 793 struct fw_xfer *xfer; 794 struct tlabel *tl; 795 int s = splfw(); 796 797 for( tl = STAILQ_FIRST(&fc->tlabels[tlabel]); tl != NULL; 798 tl = STAILQ_NEXT(tl, link)){ 799 if(tl->xfer->dst == node){ 800 xfer = tl->xfer; 801 splx(s); 802 return(xfer); 803 } 804 } 805 splx(s); 806 return(NULL); 807} 808 809/* 810 * To allocate IEEE1394 XFER structure. 811 */ 812struct fw_xfer * 813fw_xfer_alloc(struct malloc_type *type) 814{ 815 struct fw_xfer *xfer; 816 817 xfer = malloc(sizeof(struct fw_xfer), type, M_NOWAIT | M_ZERO); 818 if (xfer == NULL) 819 return xfer; 820 821 xfer->time = time_second; 822 xfer->sub = -1; 823 xfer->malloc = type; 824 825 return xfer; 826} 827 828/* 829 * IEEE1394 XFER post process. 830 */ 831void 832fw_xfer_done(struct fw_xfer *xfer) 833{ 834 if (xfer->act.hand == NULL) 835 return; 836 837#if XFER_TIMEOUT 838 untimeout(fw_xfer_timeout, (void *)xfer, xfer->ch); 839#endif 840 841 if (xfer->fc->status != FWBUSRESET) 842 xfer->act.hand(xfer); 843 else { 844 printf("fw_xfer_done: pending\n"); 845 if (xfer->fc != NULL) 846 STAILQ_INSERT_TAIL(&xfer->fc->pending, xfer, link); 847 else 848 panic("fw_xfer_done: why xfer->fc is NULL?"); 849 } 850} 851 852/* 853 * To free IEEE1394 XFER structure. 854 */ 855void 856fw_xfer_free( struct fw_xfer* xfer) 857{ 858 int s; 859 if(xfer == NULL ) return; 860 if(xfer->state == FWXF_INQ){ 861 printf("fw_xfer_free FWXF_INQ\n"); 862 s = splfw(); 863 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link); 864 xfer->q->queued --; 865 splx(s); 866 } 867 if(xfer->fc != NULL){ 868 if(xfer->state == FWXF_START){ 869#if 0 /* this could happen if we call fwohci_arcv() before fwohci_txd() */ 870 printf("fw_xfer_free FWXF_START\n"); 871#endif 872 s = splfw(); 873 xfer->q->drain(xfer->fc, xfer); 874 splx(s); 875 } 876 } 877 if(xfer->send.buf != NULL){ 878 free(xfer->send.buf, M_FW); 879 } 880 if(xfer->recv.buf != NULL){ 881 free(xfer->recv.buf, M_FW); 882 } 883 if(xfer->fc != NULL){ 884 fw_tl_free(xfer->fc, xfer); 885 } 886 free(xfer, xfer->malloc); 887} 888 889static void 890fw_asy_callback_free(struct fw_xfer *xfer) 891{ 892#if 0 893 printf("asyreq done state=%d resp=%d\n", 894 xfer->state, xfer->resp); 895#endif 896 fw_xfer_free(xfer); 897} 898 899/* 900 * To configure PHY. 901 */ 902static void 903fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count) 904{ 905 struct fw_xfer *xfer; 906 struct fw_pkt *fp; 907 908 fc->status = FWBUSPHYCONF; 909 910#if 0 911 DELAY(100000); 912#endif 913 xfer = fw_xfer_alloc(M_FWXFER); 914 xfer->send.len = 12; 915 xfer->send.off = 0; 916 xfer->fc = fc; 917 xfer->retry_req = fw_asybusy; 918 xfer->act.hand = fw_asy_callback_free; 919 920 xfer->send.buf = malloc(sizeof(u_int32_t), 921 M_FW, M_NOWAIT | M_ZERO); 922 fp = (struct fw_pkt *)xfer->send.buf; 923 fp->mode.ld[1] = 0; 924 if (root_node >= 0) 925 fp->mode.ld[1] |= htonl((root_node & 0x3f) << 24 | 1 << 23); 926 if (gap_count >= 0) 927 fp->mode.ld[1] |= htonl(1 << 22 | (gap_count & 0x3f) << 16); 928 fp->mode.ld[2] = ~fp->mode.ld[1]; 929/* XXX Dangerous, how to pass PHY packet to device driver */ 930 fp->mode.common.tcode |= FWTCODE_PHY; 931 932 if (firewire_debug) 933 printf("send phy_config root_node=%d gap_count=%d\n", 934 root_node, gap_count); 935 fw_asyreq(fc, -1, xfer); 936} 937 938#if 0 939/* 940 * Dump self ID. 941 */ 942static void 943fw_print_sid(u_int32_t sid) 944{ 945 union fw_self_id *s; 946 s = (union fw_self_id *) &sid; 947 printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d" 948 " p0:%d p1:%d p2:%d i:%d m:%d\n", 949 s->p0.phy_id, s->p0.link_active, s->p0.gap_count, 950 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender, 951 s->p0.power_class, s->p0.port0, s->p0.port1, 952 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets); 953} 954#endif 955 956/* 957 * To receive self ID. 958 */ 959void fw_sidrcv(struct firewire_comm* fc, caddr_t buf, u_int len, u_int off) 960{ 961 u_int32_t *p, *sid = (u_int32_t *)(buf + off); 962 union fw_self_id *self_id; 963 u_int i, j, node, c_port = 0, i_branch = 0; 964 965 fc->sid_cnt = len /(sizeof(u_int32_t) * 2); 966 fc->status = FWBUSINIT; 967 fc->max_node = fc->nodeid & 0x3f; 968 CSRARC(fc, NODE_IDS) = ((u_int32_t)fc->nodeid) << 16; 969 fc->status = FWBUSCYMELECT; 970 fc->topology_map->crc_len = 2; 971 fc->topology_map->generation ++; 972 fc->topology_map->self_id_count = 0; 973 fc->topology_map->node_count = 0; 974 fc->speed_map->generation ++; 975 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4; 976 self_id = &fc->topology_map->self_id[0]; 977 for(i = 0; i < fc->sid_cnt; i ++){ 978 if (sid[1] != ~sid[0]) { 979 printf("fw_sidrcv: invalid self-id packet\n"); 980 sid += 2; 981 continue; 982 } 983 *self_id = *((union fw_self_id *)sid); 984 fc->topology_map->crc_len++; 985 if(self_id->p0.sequel == 0){ 986 fc->topology_map->node_count ++; 987 c_port = 0; 988#if 0 989 fw_print_sid(sid[0]); 990#endif 991 node = self_id->p0.phy_id; 992 if(fc->max_node < node){ 993 fc->max_node = self_id->p0.phy_id; 994 } 995 /* XXX I'm not sure this is the right speed_map */ 996 fc->speed_map->speed[node][node] 997 = self_id->p0.phy_speed; 998 for (j = 0; j < node; j ++) { 999 fc->speed_map->speed[j][node] 1000 = fc->speed_map->speed[node][j] 1001 = min(fc->speed_map->speed[j][j], 1002 self_id->p0.phy_speed); 1003 } 1004 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) && 1005 (self_id->p0.link_active && self_id->p0.contender)) { 1006 fc->irm = self_id->p0.phy_id; 1007 } 1008 if(self_id->p0.port0 >= 0x2){ 1009 c_port++; 1010 } 1011 if(self_id->p0.port1 >= 0x2){ 1012 c_port++; 1013 } 1014 if(self_id->p0.port2 >= 0x2){ 1015 c_port++; 1016 } 1017 } 1018 if(c_port > 2){ 1019 i_branch += (c_port - 2); 1020 } 1021 sid += 2; 1022 self_id++; 1023 fc->topology_map->self_id_count ++; 1024 } 1025 device_printf(fc->bdev, "%d nodes", fc->max_node + 1); 1026 /* CRC */ 1027 fc->topology_map->crc = fw_crc16( 1028 (u_int32_t *)&fc->topology_map->generation, 1029 fc->topology_map->crc_len * 4); 1030 fc->speed_map->crc = fw_crc16( 1031 (u_int32_t *)&fc->speed_map->generation, 1032 fc->speed_map->crc_len * 4); 1033 /* byteswap and copy to CSR */ 1034 p = (u_int32_t *)fc->topology_map; 1035 for (i = 0; i <= fc->topology_map->crc_len; i++) 1036 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++); 1037 p = (u_int32_t *)fc->speed_map; 1038 CSRARC(fc, SPED_MAP) = htonl(*p++); 1039 CSRARC(fc, SPED_MAP + 4) = htonl(*p++); 1040 /* don't byte-swap u_int8_t array */ 1041 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4); 1042 1043 fc->max_hop = fc->max_node - i_branch; 1044#if 1 1045 printf(", maxhop <= %d", fc->max_hop); 1046#endif 1047 1048 if(fc->irm == -1 ){ 1049 printf(", Not found IRM capable node"); 1050 }else{ 1051 printf(", cable IRM = %d", fc->irm); 1052 if (fc->irm == fc->nodeid) 1053 printf(" (me)"); 1054 } 1055 printf("\n"); 1056 1057 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) { 1058 if (fc->irm == ((CSRARC(fc, NODE_IDS) >> 16 ) & 0x3f)) { 1059 fc->status = FWBUSMGRDONE; 1060 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm); 1061 } else { 1062 fc->status = FWBUSMGRELECT; 1063 callout_reset(&fc->bmr_callout, hz/8, 1064 (void *)fw_try_bmr, (void *)fc); 1065 } 1066 } else { 1067 fc->status = FWBUSMGRDONE; 1068#if 0 1069 device_printf(fc->bdev, "BMR = %x\n", 1070 CSRARC(fc, BUS_MGR_ID)); 1071#endif 1072 } 1073 free(buf, M_FW); 1074 if(fc->irm == ((CSRARC(fc, NODE_IDS) >> 16 ) & 0x3f)){ 1075 /* I am BMGR */ 1076 fw_bmr(fc); 1077 } 1078 callout_reset(&fc->busprobe_callout, hz/4, 1079 (void *)fw_bus_probe, (void *)fc); 1080} 1081 1082/* 1083 * To probe devices on the IEEE1394 bus. 1084 */ 1085static void 1086fw_bus_probe(struct firewire_comm *fc) 1087{ 1088 int s; 1089 struct fw_device *fwdev, *next; 1090 1091 s = splfw(); 1092 fc->status = FWBUSEXPLORE; 1093 fc->retry_count = 0; 1094 1095/* 1096 * Invalidate all devices, just after bus reset. Devices 1097 * to be removed has not been seen longer time. 1098 */ 1099 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1100 next = STAILQ_NEXT(fwdev, link); 1101 if (fwdev->status != FWDEVINVAL) { 1102 fwdev->status = FWDEVINVAL; 1103 fwdev->rcnt = 0; 1104 } else if(fwdev->rcnt < FW_MAXDEVRCNT) { 1105 fwdev->rcnt ++; 1106 } else { 1107 STAILQ_REMOVE(&fc->devices, fwdev, fw_device, link); 1108 free(fwdev, M_FW); 1109 } 1110 } 1111 fc->ongonode = 0; 1112 fc->ongoaddr = CSRROMOFF; 1113 fc->ongodev = NULL; 1114 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1115 fw_bus_explore(fc); 1116 splx(s); 1117} 1118 1119/* 1120 * To collect device informations on the IEEE1394 bus. 1121 */ 1122static void 1123fw_bus_explore(struct firewire_comm *fc ) 1124{ 1125 int err = 0; 1126 struct fw_device *fwdev, *pfwdev, *tfwdev; 1127 u_int32_t addr; 1128 struct fw_xfer *xfer; 1129 struct fw_pkt *fp; 1130 1131 if(fc->status != FWBUSEXPLORE) 1132 return; 1133 1134loop: 1135 if(fc->ongonode == fc->nodeid) fc->ongonode++; 1136 1137 if(fc->ongonode > fc->max_node) goto done; 1138 if(fc->ongonode >= 0x3f) goto done; 1139 1140 /* check link */ 1141 /* XXX we need to check phy_id first */ 1142 if (!fc->topology_map->self_id[fc->ongonode].p0.link_active) { 1143 printf("fw_bus_explore: node %d link down\n", fc->ongonode); 1144 fc->ongonode++; 1145 goto loop; 1146 } 1147 1148 if(fc->ongoaddr <= CSRROMOFF && 1149 fc->ongoeui.hi == 0xffffffff && 1150 fc->ongoeui.lo == 0xffffffff ){ 1151 fc->ongoaddr = CSRROMOFF; 1152 addr = 0xf0000000 | fc->ongoaddr; 1153 }else if(fc->ongoeui.hi == 0xffffffff ){ 1154 fc->ongoaddr = CSRROMOFF + 0xc; 1155 addr = 0xf0000000 | fc->ongoaddr; 1156 }else if(fc->ongoeui.lo == 0xffffffff ){ 1157 fc->ongoaddr = CSRROMOFF + 0x10; 1158 addr = 0xf0000000 | fc->ongoaddr; 1159 }else if(fc->ongodev == NULL){ 1160 STAILQ_FOREACH(fwdev, &fc->devices, link) 1161 if (FW_EUI64_EQUAL(fwdev->eui, fc->ongoeui)) 1162 break; 1163 if(fwdev != NULL){ 1164 fwdev->dst = fc->ongonode; 1165 fwdev->status = FWDEVATTACHED; 1166 fc->ongonode++; 1167 fc->ongoaddr = CSRROMOFF; 1168 fc->ongodev = NULL; 1169 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1170 goto loop; 1171 } 1172 fwdev = malloc(sizeof(struct fw_device), M_FW, M_NOWAIT); 1173 if(fwdev == NULL) 1174 return; 1175 fwdev->fc = fc; 1176 fwdev->rommax = 0; 1177 fwdev->dst = fc->ongonode; 1178 fwdev->eui.hi = fc->ongoeui.hi; fwdev->eui.lo = fc->ongoeui.lo; 1179 fwdev->status = FWDEVINIT; 1180#if 0 1181 fwdev->speed = CSRARC(fc, SPED_MAP + 8 + fc->ongonode / 4) 1182 >> ((3 - (fc->ongonode % 4)) * 8); 1183#else 1184 fwdev->speed = fc->speed_map->speed[fc->nodeid][fc->ongonode]; 1185#endif 1186 1187 pfwdev = NULL; 1188 STAILQ_FOREACH(tfwdev, &fc->devices, link) { 1189 if (tfwdev->eui.hi > fwdev->eui.hi || 1190 (tfwdev->eui.hi == fwdev->eui.hi && 1191 tfwdev->eui.lo > fwdev->eui.lo)) 1192 break; 1193 pfwdev = tfwdev; 1194 } 1195 if (pfwdev == NULL) 1196 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link); 1197 else 1198 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link); 1199 1200 device_printf(fc->bdev, "New %s device ID:%08x%08x\n", 1201 linkspeed[fwdev->speed], 1202 fc->ongoeui.hi, fc->ongoeui.lo); 1203 1204 fc->ongodev = fwdev; 1205 fc->ongoaddr = CSRROMOFF; 1206 addr = 0xf0000000 | fc->ongoaddr; 1207 }else{ 1208 addr = 0xf0000000 | fc->ongoaddr; 1209 } 1210#if 0 1211 xfer = asyreqq(fc, FWSPD_S100, 0, 0, 1212 ((FWLOCALBUS | fc->ongonode) << 16) | 0xffff , addr, 1213 fw_bus_explore_callback); 1214 if(xfer == NULL) goto done; 1215#else 1216 xfer = fw_xfer_alloc(M_FWXFER); 1217 if(xfer == NULL){ 1218 goto done; 1219 } 1220 xfer->send.len = 16; 1221 xfer->spd = 0; 1222 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 1223 if(xfer->send.buf == NULL){ 1224 fw_xfer_free( xfer); 1225 return; 1226 } 1227 1228 xfer->send.off = 0; 1229 fp = (struct fw_pkt *)xfer->send.buf; 1230 fp->mode.rreqq.dest_hi = htons(0xffff); 1231 fp->mode.rreqq.tlrt = 0; 1232 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1233 fp->mode.rreqq.pri = 0; 1234 fp->mode.rreqq.src = 0; 1235 xfer->dst = FWLOCALBUS | fc->ongonode; 1236 fp->mode.rreqq.dst = htons(xfer->dst); 1237 fp->mode.rreqq.dest_lo = htonl(addr); 1238 xfer->act.hand = fw_bus_explore_callback; 1239 1240 err = fw_asyreq(fc, -1, xfer); 1241 if(err){ 1242 fw_xfer_free( xfer); 1243 return; 1244 } 1245#endif 1246 return; 1247done: 1248 /* fw_attach_devs */ 1249 fc->status = FWBUSEXPDONE; 1250 if (firewire_debug) 1251 printf("bus_explore done\n"); 1252 fw_attach_dev(fc); 1253 return; 1254 1255} 1256 1257/* Portable Async. request read quad */ 1258struct fw_xfer * 1259asyreqq(struct firewire_comm *fc, u_int8_t spd, u_int8_t tl, u_int8_t rt, 1260 u_int32_t addr_hi, u_int32_t addr_lo, 1261 void (*hand) __P((struct fw_xfer*))) 1262{ 1263 struct fw_xfer *xfer; 1264 struct fw_pkt *fp; 1265 int err; 1266 1267 xfer = fw_xfer_alloc(M_FWXFER); 1268 if(xfer == NULL){ 1269 return NULL; 1270 } 1271 xfer->send.len = 16; 1272 xfer->spd = spd; /* XXX:min(spd, fc->spd) */ 1273 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 1274 if(xfer->send.buf == NULL){ 1275 fw_xfer_free( xfer); 1276 return NULL; 1277 } 1278 1279 xfer->send.off = 0; 1280 fp = (struct fw_pkt *)xfer->send.buf; 1281 fp->mode.rreqq.dest_hi = htons(addr_hi & 0xffff); 1282 if(tl & FWP_TL_VALID){ 1283 fp->mode.rreqq.tlrt = (tl & 0x3f) << 2; 1284 }else{ 1285 fp->mode.rreqq.tlrt = 0; 1286 } 1287 fp->mode.rreqq.tlrt |= rt & 0x3; 1288 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1289 fp->mode.rreqq.pri = 0; 1290 fp->mode.rreqq.src = 0; 1291 xfer->dst = addr_hi >> 16; 1292 fp->mode.rreqq.dst = htons(xfer->dst); 1293 fp->mode.rreqq.dest_lo = htonl(addr_lo); 1294 xfer->act.hand = hand; 1295 1296 err = fw_asyreq(fc, -1, xfer); 1297 if(err){ 1298 fw_xfer_free( xfer); 1299 return NULL; 1300 } 1301 return xfer; 1302} 1303 1304/* 1305 * Callback for the IEEE1394 bus information collection. 1306 */ 1307static void 1308fw_bus_explore_callback(struct fw_xfer *xfer) 1309{ 1310 struct firewire_comm *fc; 1311 struct fw_pkt *sfp,*rfp; 1312 struct csrhdr *chdr; 1313 struct csrdir *csrd; 1314 struct csrreg *csrreg; 1315 u_int32_t offset; 1316 1317 1318 if(xfer == NULL) return; 1319 fc = xfer->fc; 1320 if(xfer->resp != 0){ 1321 printf("resp != 0: node=%d addr=0x%x\n", 1322 fc->ongonode, fc->ongoaddr); 1323 fc->retry_count++; 1324 goto nextnode; 1325 } 1326 1327 if(xfer->send.buf == NULL){ 1328 printf("send.buf == NULL: node=%d addr=0x%x\n", 1329 fc->ongonode, fc->ongoaddr); 1330 printf("send.buf == NULL\n"); 1331 fc->retry_count++; 1332 goto nextnode; 1333 } 1334 sfp = (struct fw_pkt *)xfer->send.buf; 1335 1336 if(xfer->recv.buf == NULL){ 1337 printf("recv.buf == NULL: node=%d addr=0x%x\n", 1338 fc->ongonode, fc->ongoaddr); 1339 fc->retry_count++; 1340 goto nextnode; 1341 } 1342 rfp = (struct fw_pkt *)xfer->recv.buf; 1343#if 0 1344 { 1345 u_int32_t *qld; 1346 int i; 1347 qld = (u_int32_t *)xfer->recv.buf; 1348 printf("len:%d\n", xfer->recv.len); 1349 for( i = 0 ; i <= xfer->recv.len && i < 32; i+= 4){ 1350 printf("0x%08x ", ntohl(rfp->mode.ld[i/4])); 1351 if((i % 16) == 15) printf("\n"); 1352 } 1353 if((i % 16) != 15) printf("\n"); 1354 } 1355#endif 1356 if(fc->ongodev == NULL){ 1357 if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 | CSRROMOFF))){ 1358 rfp->mode.rresq.data = ntohl(rfp->mode.rresq.data); 1359 chdr = (struct csrhdr *)(&rfp->mode.rresq.data); 1360/* If CSR is minimul confinguration, more investgation is not needed. */ 1361 if(chdr->info_len == 1){ 1362 goto nextnode; 1363 }else{ 1364 fc->ongoaddr = CSRROMOFF + 0xc; 1365 } 1366 }else if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 |(CSRROMOFF + 0xc)))){ 1367 fc->ongoeui.hi = ntohl(rfp->mode.rresq.data); 1368 fc->ongoaddr = CSRROMOFF + 0x10; 1369 }else if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 |(CSRROMOFF + 0x10)))){ 1370 fc->ongoeui.lo = ntohl(rfp->mode.rresq.data); 1371 if (fc->ongoeui.hi == 0 && fc->ongoeui.lo == 0) 1372 goto nextnode; 1373 fc->ongoaddr = CSRROMOFF; 1374 } 1375 }else{ 1376 fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4] = ntohl(rfp->mode.rresq.data); 1377 if(fc->ongoaddr > fc->ongodev->rommax){ 1378 fc->ongodev->rommax = fc->ongoaddr; 1379 } 1380 csrd = SLIST_FIRST(&fc->ongocsr); 1381 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1382 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1383 offset = CSRROMOFF; 1384 }else{ 1385 chdr = (struct csrhdr *)&fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]; 1386 offset = csrd->off; 1387 } 1388 if(fc->ongoaddr > (CSRROMOFF + 0x14) && fc->ongoaddr != offset){ 1389 csrreg = (struct csrreg *)&fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4]; 1390 if( csrreg->key == 0x81 || csrreg->key == 0xd1){ 1391 csrd = SLIST_FIRST(&fc->csrfree); 1392 if(csrd == NULL){ 1393 goto nextnode; 1394 }else{ 1395 csrd->ongoaddr = fc->ongoaddr; 1396 fc->ongoaddr += csrreg->val * 4; 1397 csrd->off = fc->ongoaddr; 1398 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1399 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1400 goto nextaddr; 1401 } 1402 } 1403 } 1404 fc->ongoaddr += 4; 1405 if(((fc->ongoaddr - offset)/4 > chdr->crc_len) && 1406 (fc->ongodev->rommax < 0x414)){ 1407 if(fc->ongodev->rommax <= 0x414){ 1408 csrd = SLIST_FIRST(&fc->csrfree); 1409 if(csrd == NULL) goto nextnode; 1410 csrd->off = fc->ongoaddr; 1411 csrd->ongoaddr = fc->ongoaddr; 1412 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1413 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1414 } 1415 goto nextaddr; 1416 } 1417 1418 while(((fc->ongoaddr - offset)/4 > chdr->crc_len)){ 1419 if(csrd == NULL){ 1420 goto nextnode; 1421 }; 1422 fc->ongoaddr = csrd->ongoaddr + 4; 1423 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1424 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1425 csrd = SLIST_FIRST(&fc->ongocsr); 1426 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1427 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1428 offset = CSRROMOFF; 1429 }else{ 1430 chdr = (struct csrhdr *)&(fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]); 1431 offset = csrd->off; 1432 } 1433 } 1434 if((fc->ongoaddr - CSRROMOFF) > CSRROMSIZE){ 1435 goto nextnode; 1436 } 1437 } 1438nextaddr: 1439 fw_xfer_free( xfer); 1440 fw_bus_explore(fc); 1441 return; 1442nextnode: 1443 fw_xfer_free( xfer); 1444 fc->ongonode++; 1445/* housekeeping work space */ 1446 fc->ongoaddr = CSRROMOFF; 1447 fc->ongodev = NULL; 1448 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1449 while((csrd = SLIST_FIRST(&fc->ongocsr)) != NULL){ 1450 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1451 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1452 } 1453 fw_bus_explore(fc); 1454 return; 1455} 1456 1457/* 1458 * To obtain CSR register values. 1459 */ 1460u_int32_t 1461getcsrdata(struct fw_device *fwdev, u_int8_t key) 1462{ 1463 int i; 1464 struct csrhdr *chdr; 1465 struct csrreg *creg; 1466 chdr = (struct csrhdr *)&fwdev->csrrom[0]; 1467 for( i = chdr->info_len + 4; i <= fwdev->rommax - CSRROMOFF; i+=4){ 1468 creg = (struct csrreg *)&fwdev->csrrom[i/4]; 1469 if(creg->key == key){ 1470 return (u_int32_t)creg->val; 1471 } 1472 } 1473 return 0; 1474} 1475 1476/* 1477 * To attach sub-devices layer onto IEEE1394 bus. 1478 */ 1479static void 1480fw_attach_dev(struct firewire_comm *fc) 1481{ 1482 struct fw_device *fwdev; 1483 struct fw_xfer *xfer; 1484 int i, err; 1485 device_t *devlistp; 1486 int devcnt; 1487 struct firewire_dev_comm *fdc; 1488 u_int32_t spec, ver; 1489 1490 STAILQ_FOREACH(fwdev, &fc->devices, link) { 1491 if(fwdev->status == FWDEVINIT){ 1492 spec = getcsrdata(fwdev, CSRKEY_SPEC); 1493 if(spec == 0) 1494 continue; 1495 ver = getcsrdata(fwdev, CSRKEY_VER); 1496 if(ver == 0) 1497 continue; 1498 fwdev->maxrec = (fwdev->csrrom[2] >> 12) & 0xf; 1499 1500 device_printf(fc->bdev, "Device "); 1501 switch(spec){ 1502 case CSRVAL_ANSIT10: 1503 switch(ver){ 1504 case CSRVAL_T10SBP2: 1505 printf("SBP-II"); 1506 break; 1507 default: 1508 break; 1509 } 1510 break; 1511 case CSRVAL_1394TA: 1512 switch(ver){ 1513 case CSR_PROTAVC: 1514 printf("AV/C"); 1515 break; 1516 case CSR_PROTCAL: 1517 printf("CAL"); 1518 break; 1519 case CSR_PROTEHS: 1520 printf("EHS"); 1521 break; 1522 case CSR_PROTHAVI: 1523 printf("HAVi"); 1524 break; 1525 case CSR_PROTCAM104: 1526 printf("1394 Cam 1.04"); 1527 break; 1528 case CSR_PROTCAM120: 1529 printf("1394 Cam 1.20"); 1530 break; 1531 case CSR_PROTCAM130: 1532 printf("1394 Cam 1.30"); 1533 break; 1534 case CSR_PROTDPP: 1535 printf("1394 Direct print"); 1536 break; 1537 case CSR_PROTIICP: 1538 printf("Industrial & Instrument"); 1539 break; 1540 default: 1541 printf("unknown 1394TA"); 1542 break; 1543 } 1544 break; 1545 default: 1546 printf("unknown spec"); 1547 break; 1548 } 1549 fwdev->status = FWDEVATTACHED; 1550 printf("\n"); 1551 } 1552 } 1553 err = device_get_children(fc->bdev, &devlistp, &devcnt); 1554 if( err != 0 ) 1555 return; 1556 for( i = 0 ; i < devcnt ; i++){ 1557 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 1558 fdc = device_get_softc(devlistp[i]); 1559 if (fdc->post_explore != NULL) 1560 fdc->post_explore(fdc); 1561 } 1562 } 1563 free(devlistp, M_TEMP); 1564 1565 /* call pending handlers */ 1566 i = 0; 1567 while ((xfer = STAILQ_FIRST(&fc->pending))) { 1568 STAILQ_REMOVE_HEAD(&fc->pending, link); 1569 i++; 1570 if (xfer->act.hand) 1571 xfer->act.hand(xfer); 1572 } 1573 if (i > 0) 1574 printf("fw_attach_dev: %d pending handlers called\n", i); 1575 if (fc->retry_count > 0) { 1576 printf("retry_count = %d\n", fc->retry_count); 1577 callout_reset(&fc->retry_probe_callout, hz*2, 1578 (void *)fc->ibr, (void *)fc); 1579 } 1580 return; 1581} 1582 1583/* 1584 * To allocate uniq transaction label. 1585 */ 1586static int 1587fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer) 1588{ 1589 u_int i; 1590 struct tlabel *tl, *tmptl; 1591 int s; 1592 static u_int32_t label = 0; 1593 1594 s = splfw(); 1595 for( i = 0 ; i < 0x40 ; i ++){ 1596 label = (label + 1) & 0x3f; 1597 for(tmptl = STAILQ_FIRST(&fc->tlabels[label]); 1598 tmptl != NULL; tmptl = STAILQ_NEXT(tmptl, link)){ 1599 if(tmptl->xfer->dst == xfer->dst) break; 1600 } 1601 if(tmptl == NULL) { 1602 tl = malloc(sizeof(struct tlabel),M_FW,M_NOWAIT); 1603 if (tl == NULL) { 1604 splx(s); 1605 return (-1); 1606 } 1607 tl->xfer = xfer; 1608 STAILQ_INSERT_TAIL(&fc->tlabels[label], tl, link); 1609 splx(s); 1610 return(label); 1611 } 1612 } 1613 splx(s); 1614 1615 printf("fw_get_tlabel: no free tlabel\n"); 1616 return(-1); 1617} 1618 1619/* 1620 * Generic packet receving process. 1621 */ 1622void 1623fw_rcv(struct firewire_comm* fc, caddr_t buf, u_int len, u_int sub, u_int off, u_int spd) 1624{ 1625 struct fw_pkt *fp, *resfp; 1626 struct fw_xfer *xfer; 1627 struct fw_bind *bind; 1628 struct firewire_softc *sc; 1629 int s; 1630#if 0 1631 { 1632 u_int32_t *qld; 1633 int i; 1634 qld = (u_int32_t *)buf; 1635 printf("spd %d len:%d\n", spd, len); 1636 for( i = 0 ; i <= len && i < 32; i+= 4){ 1637 printf("0x%08x ", ntohl(qld[i/4])); 1638 if((i % 16) == 15) printf("\n"); 1639 } 1640 if((i % 16) != 15) printf("\n"); 1641 } 1642#endif 1643 fp = (struct fw_pkt *)(buf + off); 1644 switch(fp->mode.common.tcode){ 1645 case FWTCODE_WRES: 1646 case FWTCODE_RRESQ: 1647 case FWTCODE_RRESB: 1648 case FWTCODE_LRES: 1649 xfer = fw_tl2xfer(fc, ntohs(fp->mode.hdr.src), 1650 fp->mode.hdr.tlrt >> 2); 1651 if(xfer == NULL) { 1652 printf("fw_rcv: unknown response " 1653 "tcode=%d src=0x%x tl=%x rt=%d data=0x%x\n", 1654 fp->mode.common.tcode, 1655 ntohs(fp->mode.hdr.src), 1656 fp->mode.hdr.tlrt >> 2, 1657 fp->mode.hdr.tlrt & 3, 1658 fp->mode.rresq.data); 1659#if 1 1660 printf("try ad-hoc work around!!\n"); 1661 xfer = fw_tl2xfer(fc, ntohs(fp->mode.hdr.src), 1662 (fp->mode.hdr.tlrt >> 2)^3); 1663 if (xfer == NULL) { 1664 printf("no use...\n"); 1665 goto err; 1666 } 1667#else 1668 goto err; 1669#endif 1670 } 1671 switch(xfer->act_type){ 1672 case FWACT_XFER: 1673 if((xfer->sub >= 0) && 1674 ((fc->ir[xfer->sub]->flag & FWXFERQ_MODEMASK ) == 0)){ 1675 xfer->resp = EINVAL; 1676 fw_xfer_done(xfer); 1677 goto err; 1678 } 1679 xfer->recv.len = len; 1680 xfer->recv.off = off; 1681 xfer->recv.buf = buf; 1682 xfer->resp = 0; 1683 fw_xfer_done(xfer); 1684 return; 1685 break; 1686 case FWACT_CH: 1687 default: 1688 goto err; 1689 break; 1690 } 1691 break; 1692 case FWTCODE_WREQQ: 1693 case FWTCODE_WREQB: 1694 case FWTCODE_RREQQ: 1695 case FWTCODE_RREQB: 1696 case FWTCODE_LREQ: 1697 bind = fw_bindlookup(fc, ntohs(fp->mode.rreqq.dest_hi), 1698 ntohl(fp->mode.rreqq.dest_lo)); 1699 if(bind == NULL){ 1700#if __FreeBSD_version >= 500000 1701 printf("Unknown service addr 0x%08x:0x%08x tcode=%x\n", 1702#else 1703 printf("Unknown service addr 0x%08x:0x%08lx tcode=%x\n", 1704#endif 1705 ntohs(fp->mode.rreqq.dest_hi), 1706 ntohl(fp->mode.rreqq.dest_lo), 1707 fp->mode.common.tcode); 1708 if (fc->status == FWBUSRESET) { 1709 printf("fw_rcv: cannot response(bus reset)!\n"); 1710 goto err; 1711 } 1712 xfer = fw_xfer_alloc(M_FWXFER); 1713 if(xfer == NULL){ 1714 return; 1715 } 1716 xfer->spd = spd; 1717 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 1718 resfp = (struct fw_pkt *)xfer->send.buf; 1719 switch(fp->mode.common.tcode){ 1720 case FWTCODE_WREQQ: 1721 case FWTCODE_WREQB: 1722 resfp->mode.hdr.tcode = FWTCODE_WRES; 1723 xfer->send.len = 12; 1724 break; 1725 case FWTCODE_RREQQ: 1726 resfp->mode.hdr.tcode = FWTCODE_RRESQ; 1727 xfer->send.len = 16; 1728 break; 1729 case FWTCODE_RREQB: 1730 resfp->mode.hdr.tcode = FWTCODE_RRESB; 1731 xfer->send.len = 16; 1732 break; 1733 case FWTCODE_LREQ: 1734 resfp->mode.hdr.tcode = FWTCODE_LRES; 1735 xfer->send.len = 16; 1736 break; 1737 } 1738 resfp->mode.hdr.dst = fp->mode.hdr.src; 1739 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt; 1740 resfp->mode.hdr.pri = fp->mode.hdr.pri; 1741 resfp->mode.rresb.rtcode = 7; 1742 resfp->mode.rresb.extcode = 0; 1743 resfp->mode.rresb.len = 0; 1744/* 1745 xfer->act.hand = fw_asy_callback; 1746*/ 1747 xfer->act.hand = fw_xfer_free; 1748 if(fw_asyreq(fc, -1, xfer)){ 1749 fw_xfer_free( xfer); 1750 return; 1751 } 1752 goto err; 1753 } 1754 switch(bind->xfer->act_type){ 1755 case FWACT_XFER: 1756 xfer = fw_xfer_alloc(M_FWXFER); 1757 if(xfer == NULL) goto err; 1758 xfer->fc = bind->xfer->fc; 1759 xfer->sc = bind->xfer->sc; 1760 xfer->recv.buf = buf; 1761 xfer->recv.len = len; 1762 xfer->recv.off = off; 1763 xfer->spd = spd; 1764 xfer->act.hand = bind->xfer->act.hand; 1765 if (fc->status != FWBUSRESET) 1766 xfer->act.hand(xfer); 1767 else 1768 STAILQ_INSERT_TAIL(&fc->pending, xfer, link); 1769 return; 1770 break; 1771 case FWACT_CH: 1772 if(fc->ir[bind->xfer->sub]->queued >= 1773 fc->ir[bind->xfer->sub]->maxq){ 1774 device_printf(fc->bdev, 1775 "Discard a packet %x %d\n", 1776 bind->xfer->sub, 1777 fc->ir[bind->xfer->sub]->queued); 1778 goto err; 1779 } 1780 xfer = fw_xfer_alloc(M_FWXFER); 1781 if(xfer == NULL) goto err; 1782 xfer->recv.buf = buf; 1783 xfer->recv.len = len; 1784 xfer->recv.off = off; 1785 xfer->spd = spd; 1786 s = splfw(); 1787 fc->ir[bind->xfer->sub]->queued++; 1788 STAILQ_INSERT_TAIL(&fc->ir[bind->xfer->sub]->q, xfer, link); 1789 splx(s); 1790 1791 wakeup((caddr_t)fc->ir[bind->xfer->sub]); 1792 1793 return; 1794 break; 1795 default: 1796 goto err; 1797 break; 1798 } 1799 break; 1800 case FWTCODE_STREAM: 1801 { 1802 struct fw_xferq *xferq; 1803 1804 xferq = fc->ir[sub]; 1805#if 0 1806 printf("stream rcv dma %d len %d off %d spd %d\n", 1807 sub, len, off, spd); 1808#endif 1809 if(xferq->queued >= xferq->maxq) { 1810 printf("receive queue is full\n"); 1811 goto err; 1812 } 1813 xfer = fw_xfer_alloc(M_FWXFER); 1814 if(xfer == NULL) goto err; 1815 xfer->recv.buf = buf; 1816 xfer->recv.len = len; 1817 xfer->recv.off = off; 1818 xfer->spd = spd; 1819 s = splfw(); 1820 xferq->queued++; 1821 STAILQ_INSERT_TAIL(&xferq->q, xfer, link); 1822 splx(s); 1823 sc = device_get_softc(fc->bdev); 1824#if __FreeBSD_version >= 500000 1825 if (SEL_WAITING(&xferq->rsel)) 1826#else 1827 if (&xferq->rsel.si_pid != 0) 1828#endif 1829 selwakeup(&xferq->rsel); 1830 if (xferq->flag & FWXFERQ_WAKEUP) { 1831 xferq->flag &= ~FWXFERQ_WAKEUP; 1832 wakeup((caddr_t)xferq); 1833 } 1834 if (xferq->flag & FWXFERQ_HANDLER) { 1835 xferq->hand(xferq); 1836 } 1837 return; 1838 break; 1839 } 1840 default: 1841 printf("fw_rcv: unknow tcode\n"); 1842 break; 1843 } 1844err: 1845 free(buf, M_FW); 1846} 1847 1848/* 1849 * Post process for Bus Manager election process. 1850 */ 1851static void 1852fw_try_bmr_callback(struct fw_xfer *xfer) 1853{ 1854 struct fw_pkt *rfp; 1855 struct firewire_comm *fc; 1856 int bmr; 1857 1858 if (xfer == NULL) 1859 return; 1860 fc = xfer->fc; 1861 if (xfer->resp != 0) 1862 goto error; 1863 if (xfer->send.buf == NULL) 1864 goto error; 1865 if (xfer->recv.buf == NULL) 1866 goto error; 1867 rfp = (struct fw_pkt *)xfer->recv.buf; 1868 if (rfp->mode.lres.rtcode != FWRCODE_COMPLETE) 1869 goto error; 1870 1871 bmr = ntohl(rfp->mode.lres.payload[0]); 1872 if (bmr == 0x3f) 1873 bmr = fc->nodeid; 1874 1875 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f); 1876 device_printf(fc->bdev, "new bus manager %d ", 1877 CSRARC(fc, BUS_MGR_ID)); 1878 if(bmr == fc->nodeid){ 1879 printf("(me)\n"); 1880 fw_bmr(fc); 1881 }else{ 1882 printf("\n"); 1883 } 1884error: 1885 fw_xfer_free(xfer); 1886} 1887 1888/* 1889 * To candidate Bus Manager election process. 1890 */ 1891static void 1892fw_try_bmr(void *arg) 1893{ 1894 struct fw_xfer *xfer; 1895 struct firewire_comm *fc = (struct firewire_comm *)arg; 1896 struct fw_pkt *fp; 1897 int err = 0; 1898 1899 xfer = fw_xfer_alloc(M_FWXFER); 1900 if(xfer == NULL){ 1901 return; 1902 } 1903 xfer->send.len = 24; 1904 xfer->spd = 0; 1905 xfer->send.buf = malloc(24, M_FW, M_NOWAIT); 1906 if(xfer->send.buf == NULL){ 1907 fw_xfer_free( xfer); 1908 return; 1909 } 1910 1911 fc->status = FWBUSMGRELECT; 1912 1913 xfer->send.off = 0; 1914 fp = (struct fw_pkt *)xfer->send.buf; 1915 fp->mode.lreq.dest_hi = htons(0xffff); 1916 fp->mode.lreq.tlrt = 0; 1917 fp->mode.lreq.tcode = FWTCODE_LREQ; 1918 fp->mode.lreq.pri = 0; 1919 fp->mode.lreq.src = 0; 1920 fp->mode.lreq.len = htons(8); 1921 fp->mode.lreq.extcode = htons(FW_LREQ_CMPSWAP); 1922 xfer->dst = FWLOCALBUS | fc->irm; 1923 fp->mode.lreq.dst = htons(xfer->dst); 1924 fp->mode.lreq.dest_lo = htonl(0xf0000000 | BUS_MGR_ID); 1925 fp->mode.lreq.payload[0] = htonl(0x3f); 1926 fp->mode.lreq.payload[1] = htonl(fc->nodeid); 1927 xfer->act_type = FWACT_XFER; 1928 xfer->act.hand = fw_try_bmr_callback; 1929 1930 err = fw_asyreq(fc, -1, xfer); 1931 if(err){ 1932 fw_xfer_free( xfer); 1933 return; 1934 } 1935 return; 1936} 1937 1938#ifdef FW_VMACCESS 1939/* 1940 * Software implementation for physical memory block access. 1941 * XXX:Too slow, usef for debug purpose only. 1942 */ 1943static void 1944fw_vmaccess(struct fw_xfer *xfer){ 1945 struct fw_pkt *rfp, *sfp = NULL; 1946 u_int32_t *ld = (u_int32_t *)(xfer->recv.buf + xfer->recv.off); 1947 1948 printf("vmaccess spd:%2x len:%03x %d data:%08x %08x %08x %08x\n", 1949 xfer->spd, xfer->recv.len, xfer->recv.off, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 1950 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 1951 if(xfer->resp != 0){ 1952 fw_xfer_free( xfer); 1953 return; 1954 } 1955 if(xfer->recv.buf == NULL){ 1956 fw_xfer_free( xfer); 1957 return; 1958 } 1959 rfp = (struct fw_pkt *)xfer->recv.buf; 1960 switch(rfp->mode.hdr.tcode){ 1961 /* XXX need fix for 64bit arch */ 1962 case FWTCODE_WREQB: 1963 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 1964 xfer->send.len = 12; 1965 sfp = (struct fw_pkt *)xfer->send.buf; 1966 bcopy(rfp->mode.wreqb.payload, 1967 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len)); 1968 sfp->mode.wres.tcode = FWTCODE_WRES; 1969 sfp->mode.wres.rtcode = 0; 1970 break; 1971 case FWTCODE_WREQQ: 1972 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 1973 xfer->send.len = 12; 1974 sfp->mode.wres.tcode = FWTCODE_WRES; 1975 *((u_int32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data; 1976 sfp->mode.wres.rtcode = 0; 1977 break; 1978 case FWTCODE_RREQB: 1979 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_FW, M_NOWAIT); 1980 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len); 1981 sfp = (struct fw_pkt *)xfer->send.buf; 1982 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo), 1983 sfp->mode.rresb.payload, (u_int16_t)ntohs(rfp->mode.rreqb.len)); 1984 sfp->mode.rresb.tcode = FWTCODE_RRESB; 1985 sfp->mode.rresb.len = rfp->mode.rreqb.len; 1986 sfp->mode.rresb.rtcode = 0; 1987 sfp->mode.rresb.extcode = 0; 1988 break; 1989 case FWTCODE_RREQQ: 1990 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 1991 xfer->send.len = 16; 1992 sfp = (struct fw_pkt *)xfer->send.buf; 1993 sfp->mode.rresq.data = *(u_int32_t *)(ntohl(rfp->mode.rreqq.dest_lo)); 1994 sfp->mode.wres.tcode = FWTCODE_RRESQ; 1995 sfp->mode.rresb.rtcode = 0; 1996 break; 1997 default: 1998 fw_xfer_free( xfer); 1999 return; 2000 } 2001 xfer->send.off = 0; 2002 sfp->mode.hdr.dst = rfp->mode.hdr.src; 2003 xfer->dst = ntohs(rfp->mode.hdr.src); 2004 xfer->act.hand = fw_xfer_free; 2005 xfer->retry_req = fw_asybusy; 2006 2007 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt; 2008 sfp->mode.hdr.pri = 0; 2009 2010 fw_asyreq(xfer->fc, -1, xfer); 2011/**/ 2012 return; 2013} 2014#endif 2015 2016/* 2017 * CRC16 check-sum for IEEE1394 register blocks. 2018 */ 2019u_int16_t 2020fw_crc16(u_int32_t *ptr, u_int32_t len){ 2021 u_int32_t i, sum, crc = 0; 2022 int shift; 2023 len = (len + 3) & ~3; 2024 for(i = 0 ; i < len ; i+= 4){ 2025 for( shift = 28 ; shift >= 0 ; shift -= 4){ 2026 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf; 2027 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum; 2028 } 2029 crc &= 0xffff; 2030 } 2031 return((u_int16_t) crc); 2032} 2033 2034static int 2035fw_bmr(struct firewire_comm *fc) 2036{ 2037 struct fw_device fwdev; 2038 int cmstr; 2039 2040 /* XXX Assume that the current root node is cycle master capable */ 2041 cmstr = fc->max_node; 2042 /* If I am the bus manager, optimize gapcount */ 2043 if(fc->max_hop <= MAX_GAPHOP ){ 2044 fw_phy_config(fc, (fc->max_node > 0)?cmstr:-1, 2045 gap_cnt[fc->max_hop]); 2046 } 2047 /* If we are the cycle master, nothing to do */ 2048 if (cmstr == fc->nodeid) 2049 return 0; 2050 /* Bus probe has not finished, make dummy fwdev for cmstr */ 2051 bzero(&fwdev, sizeof(fwdev)); 2052 fwdev.fc = fc; 2053 fwdev.dst = cmstr; 2054 fwdev.speed = 0; 2055 fwdev.maxrec = 8; /* 512 */ 2056 fwdev.status = FWDEVINIT; 2057 /* Set cmstr bit on the cycle master */ 2058 fwmem_write_quad(&fwdev, NULL, 0/*spd*/, 2059 0xffff, 0xf0000000 | STATE_SET, 1 << 16, 2060 fw_asy_callback_free); 2061 2062 return 0; 2063} 2064 2065DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,0,0); 2066MODULE_VERSION(firewire, 1); 2067