firewire.c revision 108701
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 108701 2003-01-05 06:21:30Z 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/iec13213.h> 58#include <dev/firewire/iec68113.h> 59 60int firewire_debug=0; 61SYSCTL_NODE(_hw, OID_AUTO, firewire, CTLFLAG_RD, 0, "FireWire Subsystem"); 62SYSCTL_INT(_debug, OID_AUTO, firewire_debug, CTLFLAG_RW, &firewire_debug, 0, 63 "FireWire driver debug flag"); 64 65#define FW_MAXASYRTY 4 66#define FW_MAXDEVRCNT 4 67 68#define XFER_TIMEOUT 0 69 70devclass_t firewire_devclass; 71 72static int firewire_match __P((device_t)); 73static int firewire_attach __P((device_t)); 74static int firewire_detach __P((device_t)); 75#if 0 76static int firewire_shutdown __P((device_t)); 77#endif 78static device_t firewire_add_child __P((device_t, int, const char *, int)); 79static void fw_try_bmr __P((void *)); 80static void fw_try_bmr_callback __P((struct fw_xfer *)); 81static void fw_asystart __P((struct fw_xfer *)); 82static int fw_get_tlabel __P((struct firewire_comm *, struct fw_xfer *)); 83static void fw_bus_probe __P((struct firewire_comm *)); 84static void fw_bus_explore __P((struct firewire_comm *)); 85static void fw_bus_explore_callback __P((struct fw_xfer *)); 86static void fw_attach_dev __P((struct firewire_comm *)); 87#ifdef FW_VMACCESS 88static void fw_vmaccess __P((struct fw_xfer *)); 89#endif 90struct fw_xfer *asyreqq __P((struct firewire_comm *, u_int8_t, u_int8_t, u_int8_t, 91 u_int32_t, u_int32_t, void (*)__P((struct fw_xfer *)))); 92 93static device_method_t firewire_methods[] = { 94 /* Device interface */ 95 DEVMETHOD(device_probe, firewire_match), 96 DEVMETHOD(device_attach, firewire_attach), 97 DEVMETHOD(device_detach, firewire_detach), 98 DEVMETHOD(device_suspend, bus_generic_suspend), 99 DEVMETHOD(device_resume, bus_generic_resume), 100 DEVMETHOD(device_shutdown, bus_generic_shutdown), 101 102 /* Bus interface */ 103 DEVMETHOD(bus_add_child, firewire_add_child), 104 DEVMETHOD(bus_print_child, bus_generic_print_child), 105 106 { 0, 0 } 107}; 108char linkspeed[7][0x10]={"S100","S200","S400","S800","S1600","S3200","Unknown"}; 109 110#define MAX_GAPHOP 16 111u_int gap_cnt[] = {1, 1, 4, 6, 9, 12, 14, 17, 112 20, 23, 25, 28, 31, 33, 36, 39, 42}; 113 114extern struct cdevsw firewire_cdevsw; 115 116static driver_t firewire_driver = { 117 "firewire", 118 firewire_methods, 119 sizeof(struct firewire_softc), 120}; 121 122/* 123 * transmitter buffer update. 124 */ 125int 126fw_tbuf_update(struct firewire_comm *fc, int sub, int flag){ 127 struct fw_bulkxfer *bulkxfer, *bulkxfer2 = NULL; 128 struct fw_dvbuf *dvbuf = NULL; 129 struct fw_xferq *it; 130 int s, err = 0, i, j, chtag; 131 struct fw_pkt *fp; 132 u_int64_t tmpsync, dvsync; 133 134 it = fc->it[sub]; 135 136 s = splfw(); 137 if(it->stdma == NULL){ 138 bulkxfer = STAILQ_FIRST(&it->stvalid); 139 }else if(flag != 0){ 140 bulkxfer = STAILQ_FIRST(&it->stvalid); 141 if(bulkxfer == it->stdma){ 142 STAILQ_REMOVE_HEAD(&it->stvalid, link); 143 it->stdma->flag = 0; 144 STAILQ_INSERT_TAIL(&it->stfree, it->stdma, link); 145 if(!(it->flag & FWXFERQ_DV)) 146 wakeup(it); 147 } 148 bulkxfer = STAILQ_FIRST(&it->stvalid); 149 }else{ 150 bulkxfer = it->stdma; 151 } 152 splx(s); 153 if(bulkxfer != NULL){ 154 s = splfw(); 155 bulkxfer2 = STAILQ_NEXT(bulkxfer, link); 156#if 0 157 if(it->flag & FWXFERQ_DV && bulkxfer2 == NULL){ 158 bulkxfer2 = STAILQ_FIRST(&it->stfree); 159 STAILQ_REMOVE_HEAD(&it->stfree, link); 160 splx(s); 161 bcopy(bulkxfer->buf, bulkxfer2->buf, 162 it->psize * it->btpacket); 163 s = splfw(); 164 STAILQ_INSERT_TAIL(&it->stvalid, bulkxfer2, link); 165 } 166#endif 167 splx(s); 168 } 169 it->stdma = bulkxfer; 170 it->stdma2 = bulkxfer2; 171 172 if(it->flag & FWXFERQ_DV){ 173 chtag = it->flag & 0xff; 174dvloop: 175 if(it->dvdma == NULL){ 176 dvbuf = STAILQ_FIRST(&it->dvvalid); 177 if(dvbuf != NULL){ 178 s = splfw(); 179 STAILQ_REMOVE_HEAD(&it->dvvalid, link); 180 it->dvdma = dvbuf; 181 splx(s); 182 it->queued = 0; 183 } 184 } 185 if(it->dvdma == NULL) 186 return err; 187 188 it->stproc = STAILQ_FIRST(&it->stfree); 189 if(it->stproc != NULL){ 190 s = splfw(); 191 STAILQ_REMOVE_HEAD(&it->stfree, link); 192 splx(s); 193 }else{ 194 return err; 195 } 196/* 197 * Insert least significant 12 bits timestamp value by computation. 198 * Highest significant 4 bits is insert at just before packet sending. 199 */ 200 fp = (struct fw_pkt *)(it->stproc->buf); 201/* XXX: Parameter relies on NTSC type DV video */ 202 tmpsync = (u_int64_t)3072 * 8000 * 100 / 2997; 203 tmpsync *= it->dvsync; 204 dvsync = tmpsync; 205 dvsync %= 0xc00; 206 fp->mode.ld[2] = htonl(0x80000000 | (dvsync % 0xc00)); 207 it->dvsync ++; 208 it->dvsync %= 2997; 209 210 for( i = 0, j = 0 ; i < it->dvpacket ; i++){ 211 bcopy(it->dvdma->buf + it->queued * it->psize, 212 it->stproc->buf + j * it->psize, it->psize); 213 fp = (struct fw_pkt *)(it->stproc->buf + j * it->psize); 214 fp->mode.stream.len = htons(488); 215 fp->mode.stream.chtag = chtag; 216 fp->mode.stream.tcode = FWTCODE_STREAM; 217 fp->mode.ld[1] = htonl((fc->nodeid << 24) | 0x00780000 | it->dvdbc); 218 it->dvdbc++; 219 it->dvdbc %= 256; 220 it->queued ++; 221 j++; 222/* XXX: Parameter relies on NTSC type DV video */ 223#if 1 224#define DVDIFF 203 225#define DVFRAC 2997 226#else 227#define DVDIFF 127 228#define DVFRAC 1875 229#endif 230 it->dvdiff += DVDIFF; 231 if(it->dvdiff >= DVFRAC){ 232 it->dvdiff %= DVFRAC; 233 fp = (struct fw_pkt *)(it->stproc->buf + j * it->psize); 234 235 fp->mode.stream.len = htons(0x8); 236 fp->mode.stream.chtag = chtag; 237 fp->mode.stream.tcode = FWTCODE_STREAM; 238 fp->mode.ld[1] = htonl((fc->nodeid << 24) | 239 0x00780000 | it->dvdbc); 240 j++; 241 } 242 } 243 it->stproc->npacket = j; 244 s = splfw(); 245 STAILQ_INSERT_TAIL(&it->stvalid, it->stproc, link); 246 splx(s); 247 if(it->queued >= it->dvpacket){ 248 s = splfw(); 249 STAILQ_INSERT_TAIL(&it->dvfree, it->dvdma, link); 250 it->dvdma = NULL; 251 splx(s); 252 wakeup(it); 253 goto dvloop; 254 } 255 } 256 return err; 257} 258/* 259 * receving buffer update. 260 */ 261int 262fw_rbuf_update(struct firewire_comm *fc, int sub, int flag){ 263 struct fw_bulkxfer *bulkxfer, *bulkxfer2 = NULL; 264 struct fw_xferq *ir; 265 int s, err = 0; 266 267 ir = fc->ir[sub]; 268 s = splfw(); 269 if(ir->stdma != NULL){ 270 if(flag != 0){ 271 STAILQ_INSERT_TAIL(&ir->stvalid, ir->stdma, link); 272 }else{ 273 ir->stdma->flag = 0; 274 STAILQ_INSERT_TAIL(&ir->stfree, ir->stdma, link); 275 } 276 } 277 if(ir->stdma2 != NULL){ 278 bulkxfer = ir->stdma2; 279 bulkxfer2 = STAILQ_FIRST(&ir->stfree); 280 if(bulkxfer2 != NULL){ 281 STAILQ_REMOVE_HEAD(&ir->stfree, link); 282 } 283 }else{ 284 bulkxfer = STAILQ_FIRST(&ir->stfree); 285 if(bulkxfer != NULL){ 286 STAILQ_REMOVE_HEAD(&ir->stfree, link); 287 bulkxfer2 = STAILQ_FIRST(&ir->stfree); 288 if(bulkxfer2 != NULL){ 289 STAILQ_REMOVE_HEAD(&ir->stfree, link); 290 } 291 }else{ 292 bulkxfer = STAILQ_FIRST(&ir->stvalid); 293 STAILQ_REMOVE_HEAD(&ir->stvalid, link); 294 } 295 } 296 splx(s); 297 ir->stdma = bulkxfer; 298 ir->stdma2 = bulkxfer2; 299 return err; 300} 301 302/* 303 * To lookup node id. from EUI64. 304 */ 305struct fw_device * 306fw_noderesolve(struct firewire_comm *fc, struct fw_eui64 eui) 307{ 308 struct fw_device *fwdev; 309 for(fwdev = TAILQ_FIRST(&fc->devices); fwdev != NULL; 310 fwdev = TAILQ_NEXT(fwdev, link)){ 311 if(fwdev->eui.hi == eui.hi && fwdev->eui.lo == eui.lo){ 312 break; 313 } 314 } 315 if(fwdev == NULL) return NULL; 316 if(fwdev->status == FWDEVINVAL) return NULL; 317 return fwdev; 318} 319 320/* 321 * Async. request procedure for userland application. 322 */ 323int 324fw_asyreq(struct firewire_comm *fc, int sub, struct fw_xfer *xfer) 325{ 326 int err = 0; 327 struct fw_xferq *xferq; 328 int tl = 0, len; 329 struct fw_pkt *fp; 330 int tcode; 331 struct tcode_info *info; 332 333 if(xfer == NULL) return EINVAL; 334 if(xfer->send.len > MAXREC(fc->maxrec)){ 335 printf("send.len > maxrec\n"); 336 return EINVAL; 337 } 338 if(xfer->act.hand == NULL){ 339 printf("act.hand == NULL\n"); 340 return EINVAL; 341 } 342 fp = (struct fw_pkt *)xfer->send.buf; 343 344 tcode = fp->mode.common.tcode & 0xf; 345 info = &fc->tcode[tcode]; 346 if (info->flag == 0) { 347 printf("invalid tcode=%d\n", tcode); 348 return EINVAL; 349 } 350 if (info->flag & FWTI_REQ) 351 xferq = fc->atq; 352 else 353 xferq = fc->ats; 354 len = info->hdr_len; 355 if (info->flag & FWTI_BLOCK_STR) 356 len += ntohs(fp->mode.stream.len); 357 else if (info->flag & FWTI_BLOCK_ASY) 358 len += ntohs(fp->mode.rresb.len); 359 if( len > xfer->send.len ){ 360 printf("len(%d) > send.len(%d) (tcode=%d)\n", 361 len, xfer->send.len, tcode); 362 return EINVAL; 363 } 364 xfer->send.len = len; 365 366 if(xferq->start == NULL){ 367 printf("xferq->start == NULL\n"); 368 return EINVAL; 369 } 370 if(!(xferq->queued < xferq->maxq)){ 371 device_printf(fc->bdev, "Discard a packet (queued=%d)\n", 372 xferq->queued); 373 return EINVAL; 374 } 375 376 377 if (info->flag & FWTI_TLABEL) { 378 if((tl = fw_get_tlabel(fc, xfer)) == -1 ) 379 return EIO; 380 fp->mode.hdr.tlrt = tl << 2; 381 } 382 383 xfer->tl = tl; 384 xfer->tcode = tcode; 385 xfer->resp = 0; 386 xfer->fc = fc; 387 xfer->q = xferq; 388 xfer->act_type = FWACT_XFER; 389 xfer->retry_req = fw_asybusy; 390 391 fw_asystart(xfer); 392 return err; 393} 394/* 395 * Wakeup blocked process. 396 */ 397void 398fw_asy_callback(struct fw_xfer *xfer){ 399 wakeup(xfer); 400 return; 401} 402/* 403 * Postpone to later retry. 404 */ 405void fw_asybusy(struct fw_xfer *xfer){ 406#if 1 407 printf("fw_asybusy\n"); 408#endif 409#if XFER_TIMEOUT 410 untimeout(fw_xfer_timeout, (void *)xfer, xfer->ch); 411#endif 412/* 413 xfer->ch = timeout((timeout_t *)fw_asystart, (void *)xfer, 20000); 414*/ 415 DELAY(20000); 416 fw_asystart(xfer); 417 return; 418} 419#if XFER_TIMEOUT 420/* 421 * Post timeout for async. request. 422 */ 423void 424fw_xfer_timeout(void *arg) 425{ 426 int s; 427 struct fw_xfer *xfer; 428 429 xfer = (struct fw_xfer *)arg; 430 printf("fw_xfer_timeout status=%d resp=%d\n", xfer->state, xfer->resp); 431 /* XXX set error code */ 432 s = splfw(); 433 xfer->act.hand(xfer); 434 splx(s); 435} 436#endif 437/* 438 * Async. request with given xfer structure. 439 */ 440static void 441fw_asystart(struct fw_xfer *xfer) 442{ 443 struct firewire_comm *fc = xfer->fc; 444 int s; 445 if(xfer->retry++ >= fc->max_asyretry){ 446 xfer->resp = EBUSY; 447 xfer->state = FWXF_BUSY; 448 xfer->act.hand(xfer); 449 return; 450 } 451#if 0 /* XXX allow bus explore packets only after bus rest */ 452 if (fc->status < FWBUSEXPLORE) { 453 xfer->resp = EAGAIN; 454 xfer->state = FWXF_BUSY; 455 if (xfer->act.hand != NULL) 456 xfer->act.hand(xfer); 457 return; 458 } 459#endif 460 s = splfw(); 461 xfer->state = FWXF_INQ; 462 STAILQ_INSERT_TAIL(&xfer->q->q, xfer, link); 463 xfer->q->queued ++; 464 splx(s); 465 /* XXX just queue for mbuf */ 466 if (xfer->mbuf == NULL) 467 xfer->q->start(fc); 468#if XFER_TIMEOUT 469 if (xfer->act.hand != NULL) 470 xfer->ch = timeout(fw_xfer_timeout, (void *)xfer, hz); 471#endif 472 return; 473} 474 475static int 476firewire_match( device_t dev ) 477{ 478 device_set_desc(dev, "IEEE1394(FireWire) bus"); 479 return -140; 480} 481 482/* 483 * The attach routine. 484 */ 485static int 486firewire_attach( device_t dev ) 487{ 488 int i, unitmask, mn; 489 struct firewire_softc *sc = device_get_softc(dev); 490 device_t pa = device_get_parent(dev); 491 struct firewire_comm *fc; 492 dev_t d; 493 494 fc = (struct firewire_comm *)device_get_softc(pa); 495 sc->fc = fc; 496 497 unitmask = UNIT2MIN(device_get_unit(dev)); 498 499 if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA; 500 for ( i = 0 ; i < fc->nisodma ; i++ ){ 501 mn = unitmask | i; 502 /* XXX device name should be improved */ 503 d = make_dev(&firewire_cdevsw, unit2minor(mn), 504 UID_ROOT, GID_OPERATOR, 0660, 505 "fw%x", mn); 506#if __FreeBSD_version >= 500000 507 if (i == 0) 508 sc->dev = d; 509 else 510 dev_depends(sc->dev, d); 511#else 512 sc->dev[i] = d; 513#endif 514 } 515 d = make_dev(&firewire_cdevsw, unit2minor(unitmask | FWMEM_FLAG), 516 UID_ROOT, GID_OPERATOR, 0660, 517 "fwmem%d", device_get_unit(dev)); 518#if __FreeBSD_version >= 500000 519 dev_depends(sc->dev, d); 520#else 521 sc->dev[i] = d; 522#endif 523 sc->fc->timeouthandle = timeout((timeout_t *)sc->fc->timeout, (void *)sc->fc, hz * 10); 524 525 /* Locate our children */ 526 bus_generic_probe(dev); 527 528 /* launch attachement of the added children */ 529 bus_generic_attach(dev); 530 531 /* bus_reset */ 532 fc->ibr(fc); 533 534 return 0; 535} 536 537/* 538 * Attach it as child. 539 */ 540static device_t 541firewire_add_child(device_t dev, int order, const char *name, int unit) 542{ 543 device_t child; 544 struct firewire_softc *sc; 545 546 sc = (struct firewire_softc *)device_get_softc(dev); 547 child = device_add_child(dev, name, unit); 548 if (child) { 549 device_set_ivars(child, sc->fc); 550 device_probe_and_attach(child); 551 } 552 553 return child; 554} 555 556/* 557 * Dettach it. 558 */ 559static int 560firewire_detach( device_t dev ) 561{ 562 struct firewire_softc *sc; 563 564 sc = (struct firewire_softc *)device_get_softc(dev); 565 566#if __FreeBSD_version >= 500000 567 destroy_dev(sc->dev); 568#else 569 { 570 int j; 571 for (j = 0 ; j < sc->fc->nisodma + 1; j++) 572 destroy_dev(sc->dev[j]); 573 } 574#endif 575 /* XXX xfree_free and untimeout on all xfers */ 576 untimeout((timeout_t *)sc->fc->timeout, sc->fc, sc->fc->timeouthandle); 577 free(sc->fc->topology_map, M_DEVBUF); 578 free(sc->fc->speed_map, M_DEVBUF); 579 bus_generic_detach(dev); 580 return(0); 581} 582#if 0 583static int 584firewire_shutdown( device_t dev ) 585{ 586 return 0; 587} 588#endif 589 590/* 591 * Called after bus reset. 592 */ 593void 594fw_busreset(struct firewire_comm *fc) 595{ 596 int i; 597 struct fw_xfer *xfer; 598 599 switch(fc->status){ 600 case FWBUSMGRELECT: 601 untimeout((timeout_t *)fw_try_bmr, (void *)fc, fc->bmrhandle); 602 break; 603 default: 604 break; 605 } 606 fc->status = FWBUSRESET; 607/* XXX: discard all queued packet */ 608 while((xfer = STAILQ_FIRST(&fc->atq->q)) != NULL){ 609 STAILQ_REMOVE_HEAD(&fc->atq->q, link); 610 xfer->resp = EAGAIN; 611 switch(xfer->act_type){ 612 case FWACT_XFER: 613 fw_xfer_done(xfer); 614 break; 615 default: 616 break; 617 } 618 fw_xfer_free( xfer); 619 } 620 while((xfer = STAILQ_FIRST(&fc->ats->q)) != NULL){ 621 STAILQ_REMOVE_HEAD(&fc->ats->q, link); 622 xfer->resp = EAGAIN; 623 switch(xfer->act_type){ 624 case FWACT_XFER: 625 fw_xfer_done(xfer); 626 default: 627 break; 628 } 629 fw_xfer_free( xfer); 630 } 631 for(i = 0; i < fc->nisodma; i++) 632 while((xfer = STAILQ_FIRST(&fc->it[i]->q)) != NULL){ 633 STAILQ_REMOVE_HEAD(&fc->it[i]->q, link); 634 xfer->resp = 0; 635 switch(xfer->act_type){ 636 case FWACT_XFER: 637 fw_xfer_done(xfer); 638 break; 639 default: 640 break; 641 } 642 fw_xfer_free( xfer); 643 } 644 645 CSRARC(fc, STATE_CLEAR) 646 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 647 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 648 CSRARC(fc, NODE_IDS) = 0x3f; 649 650 CSRARC(fc, TOPO_MAP + 8) = 0; 651 fc->irm = -1; 652 653 fc->max_node = -1; 654 655 for(i = 2; i < 0x100/4 - 2 ; i++){ 656 CSRARC(fc, SPED_MAP + i * 4) = 0; 657 } 658 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 659 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 660 CSRARC(fc, RESET_START) = 0; 661 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0; 662 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19; 663 CSRARC(fc, CYCLE_TIME) = 0x0; 664 CSRARC(fc, BUS_TIME) = 0x0; 665 CSRARC(fc, BUS_MGR_ID) = 0x3f; 666 CSRARC(fc, BANDWIDTH_AV) = 4915; 667 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff; 668 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff; 669 CSRARC(fc, IP_CHANNELS) = (1 << 31); 670 671 CSRARC(fc, CONF_ROM) = 0x04 << 24; 672 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */ 673 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 | 674 1 << 28 | 0xff << 16 | 0x09 << 8; 675 CSRARC(fc, CONF_ROM + 0xc) = 0; 676 677/* DV depend CSRs see blue book */ 678 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON; 679 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON; 680 681 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 ); 682 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 683} 684 685/* Call once after reboot */ 686void fw_init(struct firewire_comm *fc) 687{ 688 int i; 689 struct csrdir *csrd; 690#ifdef FW_VMACCESS 691 struct fw_xfer *xfer; 692 struct fw_bind *fwb; 693#endif 694 695 fc->max_asyretry = FW_MAXASYRTY; 696 697 fc->arq->queued = 0; 698 fc->ars->queued = 0; 699 fc->atq->queued = 0; 700 fc->ats->queued = 0; 701 702 fc->arq->psize = FWPMAX_S400; 703 fc->ars->psize = FWPMAX_S400; 704 fc->atq->psize = FWPMAX_S400; 705 fc->ats->psize = FWPMAX_S400; 706 707 708 fc->arq->buf = NULL; 709 fc->ars->buf = NULL; 710 fc->atq->buf = NULL; 711 fc->ats->buf = NULL; 712 713 fc->arq->flag = FWXFERQ_PACKET; 714 fc->ars->flag = FWXFERQ_PACKET; 715 fc->atq->flag = FWXFERQ_PACKET; 716 fc->ats->flag = FWXFERQ_PACKET; 717 718 STAILQ_INIT(&fc->atq->q); 719 STAILQ_INIT(&fc->ats->q); 720 721 for( i = 0 ; i < fc->nisodma ; i ++ ){ 722 fc->it[i]->queued = 0; 723 fc->ir[i]->queued = 0; 724 725 fc->it[i]->start = NULL; 726 fc->ir[i]->start = NULL; 727 728 fc->it[i]->buf = NULL; 729 fc->ir[i]->buf = NULL; 730 731 fc->it[i]->flag = FWXFERQ_STREAM; 732 fc->ir[i]->flag = FWXFERQ_STREAM; 733 734 STAILQ_INIT(&fc->it[i]->q); 735 STAILQ_INIT(&fc->ir[i]->q); 736 737 STAILQ_INIT(&fc->it[i]->binds); 738 STAILQ_INIT(&fc->ir[i]->binds); 739 } 740 741 fc->arq->maxq = FWMAXQUEUE; 742 fc->ars->maxq = FWMAXQUEUE; 743 fc->atq->maxq = FWMAXQUEUE; 744 fc->ats->maxq = FWMAXQUEUE; 745 746 for( i = 0 ; i < fc->nisodma ; i++){ 747 fc->ir[i]->maxq = FWMAXQUEUE; 748 fc->it[i]->maxq = FWMAXQUEUE; 749 } 750/* Initialize csr registers */ 751 fc->topology_map = (struct fw_topology_map *)malloc( 752 sizeof(struct fw_topology_map), 753 M_DEVBUF, M_DONTWAIT | M_ZERO); 754 fc->speed_map = (struct fw_speed_map *)malloc( 755 sizeof(struct fw_speed_map), 756 M_DEVBUF, M_DONTWAIT | M_ZERO); 757 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16; 758 CSRARC(fc, TOPO_MAP + 4) = 1; 759 CSRARC(fc, SPED_MAP) = 0x3f1 << 16; 760 CSRARC(fc, SPED_MAP + 4) = 1; 761 762 TAILQ_INIT(&fc->devices); 763 STAILQ_INIT(&fc->pending); 764 765/* Initialize csr ROM work space */ 766 SLIST_INIT(&fc->ongocsr); 767 SLIST_INIT(&fc->csrfree); 768 for( i = 0 ; i < FWMAXCSRDIR ; i++){ 769 csrd = (struct csrdir *) malloc(sizeof(struct csrdir), M_DEVBUF,M_DONTWAIT); 770 if(csrd == NULL) break; 771 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 772 } 773 774/* Initialize Async handlers */ 775 STAILQ_INIT(&fc->binds); 776 for( i = 0 ; i < 0x40 ; i++){ 777 STAILQ_INIT(&fc->tlabels[i]); 778 } 779 780/* DV depend CSRs see blue book */ 781#if 0 782 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */ 783 CSRARC(fc, oPCR) = 0x8000007a; 784 for(i = 4 ; i < 0x7c/4 ; i+=4){ 785 CSRARC(fc, i + oPCR) = 0x8000007a; 786 } 787 788 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */ 789 CSRARC(fc, iPCR) = 0x803f0000; 790 for(i = 4 ; i < 0x7c/4 ; i+=4){ 791 CSRARC(fc, i + iPCR) = 0x0; 792 } 793#endif 794 795 796#ifdef FW_VMACCESS 797 xfer = fw_xfer_alloc(); 798 if(xfer == NULL) return; 799 800 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_DEVBUF, M_DONTWAIT); 801 if(fwb == NULL){ 802 fw_xfer_free(xfer); 803 } 804 xfer->act.hand = fw_vmaccess; 805 xfer->act_type = FWACT_XFER; 806 xfer->fc = fc; 807 xfer->sc = NULL; 808 809 fwb->start_hi = 0x2; 810 fwb->start_lo = 0; 811 fwb->addrlen = 0xffffffff; 812 fwb->xfer = xfer; 813 fw_bindadd(fc, fwb); 814#endif 815} 816 817/* 818 * To lookup binded process from IEEE1394 address. 819 */ 820struct fw_bind * 821fw_bindlookup(struct firewire_comm *fc, u_int32_t dest_hi, u_int32_t dest_lo) 822{ 823 struct fw_bind *tfw; 824 for(tfw = STAILQ_FIRST(&fc->binds) ; tfw != NULL ; 825 tfw = STAILQ_NEXT(tfw, fclist)){ 826 if(tfw->xfer->act_type != FWACT_NULL && 827 tfw->start_hi == dest_hi && 828 tfw->start_lo <= dest_lo && 829 (tfw->start_lo + tfw->addrlen) > dest_lo){ 830 return(tfw); 831 } 832 } 833 return(NULL); 834} 835 836/* 837 * To bind IEEE1394 address block to process. 838 */ 839int 840fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb) 841{ 842 struct fw_bind *tfw, *tfw2 = NULL; 843 int err = 0; 844 tfw = STAILQ_FIRST(&fc->binds); 845 if(tfw == NULL){ 846 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 847 goto out; 848 } 849 if((tfw->start_hi > fwb->start_hi) || 850 (tfw->start_hi == fwb->start_hi && 851 (tfw->start_lo > (fwb->start_lo + fwb->addrlen)))){ 852 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 853 goto out; 854 } 855 for(; tfw != NULL; tfw = STAILQ_NEXT(tfw, fclist)){ 856 if((tfw->start_hi < fwb->start_hi) || 857 (tfw->start_hi == fwb->start_hi && 858 (tfw->start_lo + tfw->addrlen) < fwb->start_lo)){ 859 tfw2 = STAILQ_NEXT(tfw, fclist); 860 if(tfw2 == NULL) 861 break; 862 if((tfw2->start_hi > fwb->start_hi) || 863 (tfw2->start_hi == fwb->start_hi && 864 tfw2->start_lo > (fwb->start_lo + fwb->addrlen))){ 865 break; 866 }else{ 867 err = EBUSY; 868 goto out; 869 } 870 } 871 } 872 if(tfw != NULL){ 873 STAILQ_INSERT_AFTER(&fc->binds, tfw, fwb, fclist); 874 }else{ 875 STAILQ_INSERT_TAIL(&fc->binds, fwb, fclist); 876 } 877out: 878 if(!err && fwb->xfer->act_type == FWACT_CH){ 879 STAILQ_INSERT_HEAD(&fc->ir[fwb->xfer->sub]->binds, fwb, chlist); 880 } 881 return err; 882} 883 884/* 885 * To free IEEE1394 address block. 886 */ 887int 888fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb) 889{ 890 int s; 891 892 s = splfw(); 893 /* shall we check the existance? */ 894 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist); 895 splx(s); 896 if (fwb->xfer) 897 fw_xfer_free(fwb->xfer); 898 899 return 0; 900} 901 902/* 903 * To free transaction label. 904 */ 905static void 906fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer) 907{ 908 struct tlabel *tl; 909 int s = splfw(); 910 911 for( tl = STAILQ_FIRST(&fc->tlabels[xfer->tl]); tl != NULL; 912 tl = STAILQ_NEXT(tl, link)){ 913 if(tl->xfer == xfer){ 914 STAILQ_REMOVE(&fc->tlabels[xfer->tl], tl, tlabel, link); 915 free(tl, M_DEVBUF); 916 splx(s); 917 return; 918 } 919 } 920 splx(s); 921 return; 922} 923 924/* 925 * To obtain XFER structure by transaction label. 926 */ 927static struct fw_xfer * 928fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel) 929{ 930 struct fw_xfer *xfer; 931 struct tlabel *tl; 932 int s = splfw(); 933 934 for( tl = STAILQ_FIRST(&fc->tlabels[tlabel]); tl != NULL; 935 tl = STAILQ_NEXT(tl, link)){ 936 if(tl->xfer->dst == node){ 937 xfer = tl->xfer; 938 splx(s); 939 return(xfer); 940 } 941 } 942 splx(s); 943 return(NULL); 944} 945 946/* 947 * To allocate IEEE1394 XFER structure. 948 */ 949struct fw_xfer * 950fw_xfer_alloc() 951{ 952 struct fw_xfer *xfer; 953 954 xfer = malloc(sizeof(struct fw_xfer), M_DEVBUF, M_DONTWAIT | M_ZERO); 955 if (xfer == NULL) 956 return xfer; 957 958 xfer->time = time_second; 959 xfer->sub = -1; 960 961 return xfer; 962} 963 964/* 965 * IEEE1394 XFER post process. 966 */ 967void 968fw_xfer_done(struct fw_xfer *xfer) 969{ 970 if (xfer->act.hand == NULL) 971 return; 972 973#if XFER_TIMEOUT 974 untimeout(fw_xfer_timeout, (void *)xfer, xfer->ch); 975#endif 976 977 if (xfer->fc->status != FWBUSRESET) 978 xfer->act.hand(xfer); 979 else { 980 printf("fw_xfer_done: pending\n"); 981 if (xfer->fc != NULL) 982 STAILQ_INSERT_TAIL(&xfer->fc->pending, xfer, link); 983 else 984 panic("fw_xfer_done: why xfer->fc is NULL?"); 985 } 986} 987 988/* 989 * To free IEEE1394 XFER structure. 990 */ 991void 992fw_xfer_free( struct fw_xfer* xfer) 993{ 994 int s; 995 if(xfer == NULL ) return; 996 if(xfer->state == FWXF_INQ){ 997 printf("fw_xfer_free FWXF_INQ\n"); 998 s = splfw(); 999 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link); 1000 xfer->q->queued --; 1001 splx(s); 1002 } 1003 if(xfer->fc != NULL){ 1004 if(xfer->state == FWXF_START){ 1005#if 0 /* this could happen if we call fwohci_arcv() before fwohci_txd() */ 1006 printf("fw_xfer_free FWXF_START\n"); 1007#endif 1008 s = splfw(); 1009 xfer->q->drain(xfer->fc, xfer); 1010 splx(s); 1011 } 1012 } 1013 if(xfer->send.buf != NULL){ 1014 free(xfer->send.buf, M_DEVBUF); 1015 } 1016 if(xfer->recv.buf != NULL){ 1017 free(xfer->recv.buf, M_DEVBUF); 1018 } 1019 if(xfer->fc != NULL){ 1020 fw_tl_free(xfer->fc, xfer); 1021 } 1022 free(xfer, M_DEVBUF); 1023} 1024 1025/* 1026 * Callback for PHY configuration. 1027 */ 1028static void 1029fw_phy_config_callback(struct fw_xfer *xfer) 1030{ 1031#if 0 1032 printf("phy_config done state=%d resp=%d\n", 1033 xfer->state, xfer->resp); 1034#endif 1035 fw_xfer_free(xfer); 1036 /* XXX need bus reset ?? */ 1037 /* sc->fc->ibr(xfer->fc); LOOP */ 1038} 1039 1040/* 1041 * To configure PHY. 1042 */ 1043static void 1044fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count) 1045{ 1046 struct fw_xfer *xfer; 1047 struct fw_pkt *fp; 1048 1049 fc->status = FWBUSPHYCONF; 1050 1051 DELAY(100000); 1052 xfer = fw_xfer_alloc(); 1053 xfer->send.len = 12; 1054 xfer->send.off = 0; 1055 xfer->fc = fc; 1056 xfer->retry_req = fw_asybusy; 1057 xfer->act.hand = fw_phy_config_callback; 1058 1059 xfer->send.buf = malloc(sizeof(u_int32_t), 1060 M_DEVBUF, M_DONTWAIT | M_ZERO); 1061 fp = (struct fw_pkt *)xfer->send.buf; 1062 fp->mode.ld[1] = 0; 1063 if (root_node >= 0) 1064 fp->mode.ld[1] |= htonl((root_node & 0x3f) << 24 | 1 << 23); 1065 if (gap_count >= 0) 1066 fp->mode.ld[1] |= htonl(1 << 22 | (gap_count & 0x3f) << 16); 1067 fp->mode.ld[2] = ~fp->mode.ld[1]; 1068/* XXX Dangerous, how to pass PHY packet to device driver */ 1069 fp->mode.common.tcode |= FWTCODE_PHY; 1070 1071 if (firewire_debug) 1072 printf("send phy_config root_node=%d gap_count=%d\n", 1073 root_node, gap_count); 1074 fw_asyreq(fc, -1, xfer); 1075} 1076 1077#if 0 1078/* 1079 * Dump self ID. 1080 */ 1081static void 1082fw_print_sid(u_int32_t sid) 1083{ 1084 union fw_self_id *s; 1085 s = (union fw_self_id *) &sid; 1086 printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d" 1087 " p0:%d p1:%d p2:%d i:%d m:%d\n", 1088 s->p0.phy_id, s->p0.link_active, s->p0.gap_count, 1089 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender, 1090 s->p0.power_class, s->p0.port0, s->p0.port1, 1091 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets); 1092} 1093#endif 1094 1095/* 1096 * To receive self ID. 1097 */ 1098void fw_sidrcv(struct firewire_comm* fc, caddr_t buf, u_int len, u_int off) 1099{ 1100 u_int32_t *p, *sid = (u_int32_t *)(buf + off); 1101 union fw_self_id *self_id; 1102 u_int i, j, node, c_port = 0, i_branch = 0; 1103 1104 fc->sid_cnt = len /(sizeof(u_int32_t) * 2); 1105 fc->status = FWBUSINIT; 1106 fc->max_node = fc->nodeid & 0x3f; 1107 CSRARC(fc, NODE_IDS) = ((u_int32_t)fc->nodeid) << 16; 1108 fc->status = FWBUSCYMELECT; 1109 fc->topology_map->crc_len = 2; 1110 fc->topology_map->generation ++; 1111 fc->topology_map->self_id_count = 0; 1112 fc->topology_map->node_count = 0; 1113 fc->speed_map->generation ++; 1114 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4; 1115 self_id = &fc->topology_map->self_id[0]; 1116 for(i = 0; i < fc->sid_cnt; i ++){ 1117 if (sid[1] != ~sid[0]) { 1118 printf("fw_sidrcv: invalid self-id packet\n"); 1119 sid += 2; 1120 continue; 1121 } 1122 *self_id = *((union fw_self_id *)sid); 1123 fc->topology_map->crc_len++; 1124 if(self_id->p0.sequel == 0){ 1125 fc->topology_map->node_count ++; 1126 c_port = 0; 1127#if 0 1128 fw_print_sid(sid[0]); 1129#endif 1130 node = self_id->p0.phy_id; 1131 if(fc->max_node < node){ 1132 fc->max_node = self_id->p0.phy_id; 1133 } 1134 /* XXX I'm not sure this is the right speed_map */ 1135 fc->speed_map->speed[node][node] 1136 = self_id->p0.phy_speed; 1137 for (j = 0; j < node; j ++) { 1138 fc->speed_map->speed[j][node] 1139 = fc->speed_map->speed[node][j] 1140 = min(fc->speed_map->speed[j][j], 1141 self_id->p0.phy_speed); 1142 } 1143 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) && 1144 (self_id->p0.link_active && self_id->p0.contender)) { 1145 fc->irm = self_id->p0.phy_id; 1146 } 1147 if(self_id->p0.port0 >= 0x2){ 1148 c_port++; 1149 } 1150 if(self_id->p0.port1 >= 0x2){ 1151 c_port++; 1152 } 1153 if(self_id->p0.port2 >= 0x2){ 1154 c_port++; 1155 } 1156 } 1157 if(c_port > 2){ 1158 i_branch += (c_port - 2); 1159 } 1160 sid += 2; 1161 self_id++; 1162 fc->topology_map->self_id_count ++; 1163 } 1164 device_printf(fc->bdev, "%d nodes", fc->max_node + 1); 1165 /* CRC */ 1166 fc->topology_map->crc = fw_crc16( 1167 (u_int32_t *)&fc->topology_map->generation, 1168 fc->topology_map->crc_len * 4); 1169 fc->speed_map->crc = fw_crc16( 1170 (u_int32_t *)&fc->speed_map->generation, 1171 fc->speed_map->crc_len * 4); 1172 /* byteswap and copy to CSR */ 1173 p = (u_int32_t *)fc->topology_map; 1174 for (i = 0; i <= fc->topology_map->crc_len; i++) 1175 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++); 1176 p = (u_int32_t *)fc->speed_map; 1177 CSRARC(fc, SPED_MAP) = htonl(*p++); 1178 CSRARC(fc, SPED_MAP + 4) = htonl(*p++); 1179 /* don't byte-swap u_int8_t array */ 1180 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4); 1181 1182 fc->max_hop = fc->max_node - i_branch; 1183#if 1 1184 printf(", maxhop <= %d", fc->max_hop); 1185#endif 1186 1187 if(fc->irm == -1 ){ 1188 printf(", Not found IRM capable node"); 1189 }else{ 1190 printf(", cable IRM = %d", fc->irm); 1191 if (fc->irm == fc->nodeid) 1192 printf(" (me)\n"); 1193 else 1194 printf("\n"); 1195 } 1196 1197 if((fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f) ){ 1198 if(fc->irm == ((CSRARC(fc, NODE_IDS) >> 16 ) & 0x3f)){ 1199 fc->status = FWBUSMGRDONE; 1200 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm); 1201 }else{ 1202 fc->status = FWBUSMGRELECT; 1203 fc->bmrhandle = timeout((timeout_t *)fw_try_bmr,(void *)fc, hz / 8); 1204 } 1205 }else{ 1206 fc->status = FWBUSMGRDONE; 1207 device_printf(fc->bdev, "BMR = %x\n", 1208 CSRARC(fc, BUS_MGR_ID)); 1209 } 1210 free(buf, M_DEVBUF); 1211#if 1 1212 /* XXX optimize gap_count, if I am BMGR */ 1213 if(fc->irm == ((CSRARC(fc, NODE_IDS) >> 16 ) & 0x3f)){ 1214 fw_phy_config(fc, -1, gap_cnt[fc->max_hop]); 1215 } 1216#endif 1217#if 1 1218 timeout((timeout_t *)fw_bus_probe, (void *)fc, hz/4); 1219#else 1220 fw_bus_probe(fc); 1221#endif 1222} 1223 1224/* 1225 * To probe devices on the IEEE1394 bus. 1226 */ 1227static void 1228fw_bus_probe(struct firewire_comm *fc) 1229{ 1230 int s; 1231 struct fw_device *fwdev, *next; 1232 1233 s = splfw(); 1234 fc->status = FWBUSEXPLORE; 1235 fc->retry_count = 0; 1236 1237/* 1238 * Invalidate all devices, just after bus reset. Devices 1239 * to be removed has not been seen longer time. 1240 */ 1241 for(fwdev = TAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1242 next = TAILQ_NEXT(fwdev, link); 1243 if(fwdev->status != FWDEVINVAL){ 1244 fwdev->status = FWDEVINVAL; 1245 fwdev->rcnt = 0; 1246 }else if(fwdev->rcnt < FW_MAXDEVRCNT){ 1247 fwdev->rcnt ++; 1248 }else{ 1249 TAILQ_REMOVE(&fc->devices, fwdev, link); 1250 free(fwdev, M_DEVBUF); 1251 } 1252 } 1253 fc->ongonode = 0; 1254 fc->ongoaddr = CSRROMOFF; 1255 fc->ongodev = NULL; 1256 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1257 fw_bus_explore(fc); 1258 splx(s); 1259} 1260 1261/* 1262 * To collect device informations on the IEEE1394 bus. 1263 */ 1264static void 1265fw_bus_explore(struct firewire_comm *fc ) 1266{ 1267 int err = 0; 1268 struct fw_device *fwdev, *tfwdev; 1269 u_int32_t addr; 1270 struct fw_xfer *xfer; 1271 struct fw_pkt *fp; 1272 1273 if(fc->status != FWBUSEXPLORE) 1274 return; 1275 1276loop: 1277 if(fc->ongonode == fc->nodeid) fc->ongonode++; 1278 1279 if(fc->ongonode > fc->max_node) goto done; 1280 if(fc->ongonode >= 0x3f) goto done; 1281 1282 /* check link */ 1283 /* XXX we need to check phy_id first */ 1284 if (!fc->topology_map->self_id[fc->ongonode].p0.link_active) { 1285 printf("fw_bus_explore: node %d link down\n", fc->ongonode); 1286 fc->ongonode++; 1287 goto loop; 1288 } 1289 1290 if(fc->ongoaddr <= CSRROMOFF && 1291 fc->ongoeui.hi == 0xffffffff && 1292 fc->ongoeui.lo == 0xffffffff ){ 1293 fc->ongoaddr = CSRROMOFF; 1294 addr = 0xf0000000 | fc->ongoaddr; 1295 }else if(fc->ongoeui.hi == 0xffffffff ){ 1296 fc->ongoaddr = CSRROMOFF + 0xc; 1297 addr = 0xf0000000 | fc->ongoaddr; 1298 }else if(fc->ongoeui.lo == 0xffffffff ){ 1299 fc->ongoaddr = CSRROMOFF + 0x10; 1300 addr = 0xf0000000 | fc->ongoaddr; 1301 }else if(fc->ongodev == NULL){ 1302 for(fwdev = TAILQ_FIRST(&fc->devices); fwdev != NULL; 1303 fwdev = TAILQ_NEXT(fwdev, link)){ 1304 if(fwdev->eui.hi == fc->ongoeui.hi && fwdev->eui.lo == fc->ongoeui.lo){ 1305 break; 1306 } 1307 } 1308 if(fwdev != NULL){ 1309 fwdev->dst = fc->ongonode; 1310 fwdev->status = FWDEVATTACHED; 1311 fc->ongonode++; 1312 fc->ongoaddr = CSRROMOFF; 1313 fc->ongodev = NULL; 1314 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1315 goto loop; 1316 } 1317 fwdev = malloc(sizeof(struct fw_device), M_DEVBUF, M_DONTWAIT); 1318 if(fwdev == NULL) 1319 return; 1320 fwdev->fc = fc; 1321 fwdev->rommax = 0; 1322 fwdev->dst = fc->ongonode; 1323 fwdev->eui.hi = fc->ongoeui.hi; fwdev->eui.lo = fc->ongoeui.lo; 1324 fwdev->status = FWDEVINIT; 1325#if 0 1326 fwdev->speed = CSRARC(fc, SPED_MAP + 8 + fc->ongonode / 4) 1327 >> ((3 - (fc->ongonode % 4)) * 8); 1328#else 1329 fwdev->speed = fc->speed_map->speed[fc->nodeid][fc->ongonode]; 1330#endif 1331 1332 tfwdev = TAILQ_FIRST(&fc->devices); 1333 while( tfwdev != NULL && 1334 (tfwdev->eui.hi > fwdev->eui.hi) && 1335 ((tfwdev->eui.hi == fwdev->eui.hi) && 1336 tfwdev->eui.lo > fwdev->eui.lo)){ 1337 tfwdev = TAILQ_NEXT( tfwdev, link); 1338 } 1339 if(tfwdev == NULL){ 1340 TAILQ_INSERT_TAIL(&fc->devices, fwdev, link); 1341 }else{ 1342 TAILQ_INSERT_BEFORE(tfwdev, fwdev, link); 1343 } 1344 1345 device_printf(fc->bdev, "New %s device ID:%08x%08x\n", 1346 linkspeed[fwdev->speed], 1347 fc->ongoeui.hi, fc->ongoeui.lo); 1348 1349 fc->ongodev = fwdev; 1350 fc->ongoaddr = CSRROMOFF; 1351 addr = 0xf0000000 | fc->ongoaddr; 1352 }else{ 1353 addr = 0xf0000000 | fc->ongoaddr; 1354 } 1355#if 0 1356 xfer = asyreqq(fc, FWSPD_S100, 0, 0, 1357 ((FWLOCALBUS | fc->ongonode) << 16) | 0xffff , addr, 1358 fw_bus_explore_callback); 1359 if(xfer == NULL) goto done; 1360#else 1361 xfer = fw_xfer_alloc(); 1362 if(xfer == NULL){ 1363 goto done; 1364 } 1365 xfer->send.len = 16; 1366 xfer->spd = 0; 1367 xfer->send.buf = malloc(16, M_DEVBUF, M_DONTWAIT); 1368 if(xfer->send.buf == NULL){ 1369 fw_xfer_free( xfer); 1370 return; 1371 } 1372 1373 xfer->send.off = 0; 1374 fp = (struct fw_pkt *)xfer->send.buf; 1375 fp->mode.rreqq.dest_hi = htons(0xffff); 1376 fp->mode.rreqq.tlrt = 0; 1377 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1378 fp->mode.rreqq.pri = 0; 1379 fp->mode.rreqq.src = 0; 1380 xfer->dst = FWLOCALBUS | fc->ongonode; 1381 fp->mode.rreqq.dst = htons(xfer->dst); 1382 fp->mode.rreqq.dest_lo = htonl(addr); 1383 xfer->act.hand = fw_bus_explore_callback; 1384 1385 err = fw_asyreq(fc, -1, xfer); 1386 if(err){ 1387 fw_xfer_free( xfer); 1388 return; 1389 } 1390#endif 1391 return; 1392done: 1393 /* fw_attach_devs */ 1394 fc->status = FWBUSEXPDONE; 1395 if (firewire_debug) 1396 printf("bus_explore done\n"); 1397 fw_attach_dev(fc); 1398 return; 1399 1400} 1401 1402/* Portable Async. request read quad */ 1403struct fw_xfer * 1404asyreqq(struct firewire_comm *fc, u_int8_t spd, u_int8_t tl, u_int8_t rt, 1405 u_int32_t addr_hi, u_int32_t addr_lo, 1406 void (*hand) __P((struct fw_xfer*))) 1407{ 1408 struct fw_xfer *xfer; 1409 struct fw_pkt *fp; 1410 int err; 1411 1412 xfer = fw_xfer_alloc(); 1413 if(xfer == NULL){ 1414 return NULL; 1415 } 1416 xfer->send.len = 16; 1417 xfer->spd = spd; /* XXX:min(spd, fc->spd) */ 1418 xfer->send.buf = malloc(16, M_DEVBUF, M_DONTWAIT); 1419 if(xfer->send.buf == NULL){ 1420 fw_xfer_free( xfer); 1421 return NULL; 1422 } 1423 1424 xfer->send.off = 0; 1425 fp = (struct fw_pkt *)xfer->send.buf; 1426 fp->mode.rreqq.dest_hi = htons(addr_hi & 0xffff); 1427 if(tl & FWP_TL_VALID){ 1428 fp->mode.rreqq.tlrt = (tl & 0x3f) << 2; 1429 }else{ 1430 fp->mode.rreqq.tlrt = 0; 1431 } 1432 fp->mode.rreqq.tlrt |= rt & 0x3; 1433 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1434 fp->mode.rreqq.pri = 0; 1435 fp->mode.rreqq.src = 0; 1436 xfer->dst = addr_hi >> 16; 1437 fp->mode.rreqq.dst = htons(xfer->dst); 1438 fp->mode.rreqq.dest_lo = htonl(addr_lo); 1439 xfer->act.hand = hand; 1440 1441 err = fw_asyreq(fc, -1, xfer); 1442 if(err){ 1443 fw_xfer_free( xfer); 1444 return NULL; 1445 } 1446 return xfer; 1447} 1448 1449/* 1450 * Callback for the IEEE1394 bus information collection. 1451 */ 1452static void 1453fw_bus_explore_callback(struct fw_xfer *xfer) 1454{ 1455 struct firewire_comm *fc; 1456 struct fw_pkt *sfp,*rfp; 1457 struct csrhdr *chdr; 1458 struct csrdir *csrd; 1459 struct csrreg *csrreg; 1460 u_int32_t offset; 1461 1462 1463 if(xfer == NULL) return; 1464 fc = xfer->fc; 1465 if(xfer->resp != 0){ 1466 printf("resp != 0: node=%d addr=0x%x\n", 1467 fc->ongonode, fc->ongoaddr); 1468 fc->retry_count++; 1469 goto nextnode; 1470 } 1471 1472 if(xfer->send.buf == NULL){ 1473 printf("send.buf == NULL: node=%d addr=0x%x\n", 1474 fc->ongonode, fc->ongoaddr); 1475 printf("send.buf == NULL\n"); 1476 fc->retry_count++; 1477 goto nextnode; 1478 } 1479 sfp = (struct fw_pkt *)xfer->send.buf; 1480 1481 if(xfer->recv.buf == NULL){ 1482 printf("recv.buf == NULL: node=%d addr=0x%x\n", 1483 fc->ongonode, fc->ongoaddr); 1484 fc->retry_count++; 1485 goto nextnode; 1486 } 1487 rfp = (struct fw_pkt *)xfer->recv.buf; 1488#if 0 1489 { 1490 u_int32_t *qld; 1491 int i; 1492 qld = (u_int32_t *)xfer->recv.buf; 1493 printf("len:%d\n", xfer->recv.len); 1494 for( i = 0 ; i <= xfer->recv.len && i < 32; i+= 4){ 1495 printf("0x%08x ", ntohl(rfp->mode.ld[i/4])); 1496 if((i % 16) == 15) printf("\n"); 1497 } 1498 if((i % 16) != 15) printf("\n"); 1499 } 1500#endif 1501 if(fc->ongodev == NULL){ 1502 if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 | CSRROMOFF))){ 1503 rfp->mode.rresq.data = ntohl(rfp->mode.rresq.data); 1504 chdr = (struct csrhdr *)(&rfp->mode.rresq.data); 1505/* If CSR is minimul confinguration, more investgation is not needed. */ 1506 if(chdr->info_len == 1){ 1507 goto nextnode; 1508 }else{ 1509 fc->ongoaddr = CSRROMOFF + 0xc; 1510 } 1511 }else if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 |(CSRROMOFF + 0xc)))){ 1512 fc->ongoeui.hi = ntohl(rfp->mode.rresq.data); 1513 fc->ongoaddr = CSRROMOFF + 0x10; 1514 }else if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 |(CSRROMOFF + 0x10)))){ 1515 fc->ongoeui.lo = ntohl(rfp->mode.rresq.data); 1516 if (fc->ongoeui.hi == 0 && fc->ongoeui.lo == 0) 1517 goto nextnode; 1518 fc->ongoaddr = CSRROMOFF; 1519 } 1520 }else{ 1521 fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4] = ntohl(rfp->mode.rresq.data); 1522 if(fc->ongoaddr > fc->ongodev->rommax){ 1523 fc->ongodev->rommax = fc->ongoaddr; 1524 } 1525 csrd = SLIST_FIRST(&fc->ongocsr); 1526 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1527 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1528 offset = CSRROMOFF; 1529 }else{ 1530 chdr = (struct csrhdr *)&fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]; 1531 offset = csrd->off; 1532 } 1533 if(fc->ongoaddr > (CSRROMOFF + 0x14) && fc->ongoaddr != offset){ 1534 csrreg = (struct csrreg *)&fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4]; 1535 if( csrreg->key == 0x81 || csrreg->key == 0xd1){ 1536 csrd = SLIST_FIRST(&fc->csrfree); 1537 if(csrd == NULL){ 1538 goto nextnode; 1539 }else{ 1540 csrd->ongoaddr = fc->ongoaddr; 1541 fc->ongoaddr += csrreg->val * 4; 1542 csrd->off = fc->ongoaddr; 1543 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1544 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1545 goto nextaddr; 1546 } 1547 } 1548 } 1549 fc->ongoaddr += 4; 1550 if(((fc->ongoaddr - offset)/4 > chdr->crc_len) && 1551 (fc->ongodev->rommax < 0x414)){ 1552 if(fc->ongodev->rommax <= 0x414){ 1553 csrd = SLIST_FIRST(&fc->csrfree); 1554 if(csrd == NULL) goto nextnode; 1555 csrd->off = fc->ongoaddr; 1556 csrd->ongoaddr = fc->ongoaddr; 1557 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1558 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1559 } 1560 goto nextaddr; 1561 } 1562 1563 while(((fc->ongoaddr - offset)/4 > chdr->crc_len)){ 1564 if(csrd == NULL){ 1565 goto nextnode; 1566 }; 1567 fc->ongoaddr = csrd->ongoaddr + 4; 1568 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1569 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1570 csrd = SLIST_FIRST(&fc->ongocsr); 1571 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1572 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1573 offset = CSRROMOFF; 1574 }else{ 1575 chdr = (struct csrhdr *)&(fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]); 1576 offset = csrd->off; 1577 } 1578 } 1579 if((fc->ongoaddr - CSRROMOFF) > CSRROMSIZE){ 1580 goto nextnode; 1581 } 1582 } 1583nextaddr: 1584 fw_xfer_free( xfer); 1585 fw_bus_explore(fc); 1586 return; 1587nextnode: 1588 fw_xfer_free( xfer); 1589 fc->ongonode++; 1590/* housekeeping work space */ 1591 fc->ongoaddr = CSRROMOFF; 1592 fc->ongodev = NULL; 1593 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1594 while((csrd = SLIST_FIRST(&fc->ongocsr)) != NULL){ 1595 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1596 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1597 } 1598 fw_bus_explore(fc); 1599 return; 1600} 1601 1602/* 1603 * To obtain CSR register values. 1604 */ 1605u_int32_t 1606getcsrdata(struct fw_device *fwdev, u_int8_t key) 1607{ 1608 int i; 1609 struct csrhdr *chdr; 1610 struct csrreg *creg; 1611 chdr = (struct csrhdr *)&fwdev->csrrom[0]; 1612 for( i = chdr->info_len + 4; i <= fwdev->rommax - CSRROMOFF; i+=4){ 1613 creg = (struct csrreg *)&fwdev->csrrom[i/4]; 1614 if(creg->key == key){ 1615 return (u_int32_t)creg->val; 1616 } 1617 } 1618 return 0; 1619} 1620 1621/* 1622 * To attach sub-devices layer onto IEEE1394 bus. 1623 */ 1624static void 1625fw_attach_dev(struct firewire_comm *fc) 1626{ 1627 struct fw_device *fwdev; 1628 struct fw_xfer *xfer; 1629 int i, err; 1630 device_t *devlistp; 1631 int devcnt; 1632 struct firewire_dev_comm *fdc; 1633 u_int32_t spec, ver; 1634 1635 for(fwdev = TAILQ_FIRST(&fc->devices); fwdev != NULL; 1636 fwdev = TAILQ_NEXT(fwdev, link)){ 1637 if(fwdev->status == FWDEVINIT){ 1638 spec = getcsrdata(fwdev, CSRKEY_SPEC); 1639 if(spec == 0) 1640 continue; 1641 ver = getcsrdata(fwdev, CSRKEY_VER); 1642 if(ver == 0) 1643 continue; 1644 fwdev->maxrec = (fwdev->csrrom[2] >> 12) & 0xf; 1645 1646 device_printf(fc->bdev, "Device "); 1647 switch(spec){ 1648 case CSRVAL_ANSIT10: 1649 switch(ver){ 1650 case CSRVAL_T10SBP2: 1651 printf("SBP-II"); 1652 break; 1653 default: 1654 break; 1655 } 1656 break; 1657 case CSRVAL_1394TA: 1658 switch(ver){ 1659 case CSR_PROTAVC: 1660 printf("AV/C"); 1661 break; 1662 case CSR_PROTCAL: 1663 printf("CAL"); 1664 break; 1665 case CSR_PROTEHS: 1666 printf("EHS"); 1667 break; 1668 case CSR_PROTHAVI: 1669 printf("HAVi"); 1670 break; 1671 case CSR_PROTCAM104: 1672 printf("1394 Cam 1.04"); 1673 break; 1674 case CSR_PROTCAM120: 1675 printf("1394 Cam 1.20"); 1676 break; 1677 case CSR_PROTCAM130: 1678 printf("1394 Cam 1.30"); 1679 break; 1680 case CSR_PROTDPP: 1681 printf("1394 Direct print"); 1682 break; 1683 case CSR_PROTIICP: 1684 printf("Industrial & Instrument"); 1685 break; 1686 default: 1687 printf("unknown 1394TA"); 1688 break; 1689 } 1690 break; 1691 default: 1692 printf("unknown spec"); 1693 break; 1694 } 1695 fwdev->status = FWDEVATTACHED; 1696 printf("\n"); 1697 } 1698 } 1699 err = device_get_children(fc->dev, &devlistp, &devcnt); 1700 if( err != 0 ) 1701 return; 1702 for( i = 0 ; i < devcnt ; i++){ 1703 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 1704 fdc = device_get_softc(devlistp[i]); 1705 if (fdc->post_explore != NULL) 1706 fdc->post_explore(fdc); 1707 } 1708 } 1709 free(devlistp, M_TEMP); 1710 1711 /* call pending handlers */ 1712 i = 0; 1713 while ((xfer = STAILQ_FIRST(&fc->pending))) { 1714 STAILQ_REMOVE_HEAD(&fc->pending, link); 1715 i++; 1716 if (xfer->act.hand) 1717 xfer->act.hand(xfer); 1718 } 1719 if (i > 0) 1720 printf("fw_attach_dev: %d pending handlers called\n", i); 1721 if (fc->retry_count > 0) { 1722 printf("retry_count = %d\n", fc->retry_count); 1723 fc->retry_probe_handle = timeout((timeout_t *)fc->ibr, 1724 (void *)fc, hz*2); 1725 } 1726 return; 1727} 1728 1729/* 1730 * To allocate uniq transaction label. 1731 */ 1732static int 1733fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer) 1734{ 1735 u_int i; 1736 struct tlabel *tl, *tmptl; 1737 int s; 1738 static u_int32_t label = 0; 1739 1740 s = splfw(); 1741 for( i = 0 ; i < 0x40 ; i ++){ 1742 label = (label + 1) & 0x3f; 1743 for(tmptl = STAILQ_FIRST(&fc->tlabels[label]); 1744 tmptl != NULL; tmptl = STAILQ_NEXT(tmptl, link)){ 1745 if(tmptl->xfer->dst == xfer->dst) break; 1746 } 1747 if(tmptl == NULL) { 1748 tl = malloc(sizeof(struct tlabel),M_DEVBUF,M_DONTWAIT); 1749 if (tl == NULL) { 1750 splx(s); 1751 return (-1); 1752 } 1753 tl->xfer = xfer; 1754 STAILQ_INSERT_TAIL(&fc->tlabels[label], tl, link); 1755 splx(s); 1756 return(label); 1757 } 1758 } 1759 splx(s); 1760 1761 printf("fw_get_tlabel: no free tlabel\n"); 1762 return(-1); 1763} 1764 1765/* 1766 * Generic packet receving process. 1767 */ 1768void 1769fw_rcv(struct firewire_comm* fc, caddr_t buf, u_int len, u_int sub, u_int off, u_int spd) 1770{ 1771 struct fw_pkt *fp, *resfp; 1772 struct fw_xfer *xfer; 1773 struct fw_bind *bind; 1774 struct firewire_softc *sc; 1775 int s; 1776#if 0 1777 { 1778 u_int32_t *qld; 1779 int i; 1780 qld = (u_int32_t *)buf; 1781 printf("spd %d len:%d\n", spd, len); 1782 for( i = 0 ; i <= len && i < 32; i+= 4){ 1783 printf("0x%08x ", ntohl(qld[i/4])); 1784 if((i % 16) == 15) printf("\n"); 1785 } 1786 if((i % 16) != 15) printf("\n"); 1787 } 1788#endif 1789 fp = (struct fw_pkt *)(buf + off); 1790 switch(fp->mode.common.tcode){ 1791 case FWTCODE_WRES: 1792 case FWTCODE_RRESQ: 1793 case FWTCODE_RRESB: 1794 case FWTCODE_LRES: 1795 xfer = fw_tl2xfer(fc, ntohs(fp->mode.hdr.src), 1796 fp->mode.hdr.tlrt >> 2); 1797 if(xfer == NULL) { 1798 printf("fw_rcv: unknown response " 1799 "tcode=%d src=0x%x tl=%x rt=%d data=0x%x\n", 1800 fp->mode.common.tcode, 1801 ntohs(fp->mode.hdr.src), 1802 fp->mode.hdr.tlrt >> 2, 1803 fp->mode.hdr.tlrt & 3, 1804 fp->mode.rresq.data); 1805#if 1 1806 printf("try ad-hoc work around!!\n"); 1807 xfer = fw_tl2xfer(fc, ntohs(fp->mode.hdr.src), 1808 (fp->mode.hdr.tlrt >> 2)^3); 1809 if (xfer == NULL) { 1810 printf("no use...\n"); 1811 goto err; 1812 } 1813#else 1814 goto err; 1815#endif 1816 } 1817 switch(xfer->act_type){ 1818 case FWACT_XFER: 1819 if((xfer->sub >= 0) && 1820 ((fc->ir[xfer->sub]->flag & FWXFERQ_MODEMASK ) == 0)){ 1821 xfer->resp = EINVAL; 1822 fw_xfer_done(xfer); 1823 goto err; 1824 } 1825 xfer->recv.len = len; 1826 xfer->recv.off = off; 1827 xfer->recv.buf = buf; 1828 xfer->resp = 0; 1829 fw_xfer_done(xfer); 1830 return; 1831 break; 1832 case FWACT_CH: 1833 default: 1834 goto err; 1835 break; 1836 } 1837 break; 1838 case FWTCODE_WREQQ: 1839 case FWTCODE_WREQB: 1840 case FWTCODE_RREQQ: 1841 case FWTCODE_RREQB: 1842 case FWTCODE_LREQ: 1843 bind = fw_bindlookup(fc, ntohs(fp->mode.rreqq.dest_hi), 1844 ntohl(fp->mode.rreqq.dest_lo)); 1845 if(bind == NULL){ 1846 printf("Unknown service addr 0x%08x:0x%08x tcode=%x\n", 1847 ntohs(fp->mode.rreqq.dest_hi), 1848 ntohl(fp->mode.rreqq.dest_lo), 1849 fp->mode.common.tcode); 1850 if (fc->status == FWBUSRESET) { 1851 printf("fw_rcv: cannot response(bus reset)!\n"); 1852 goto err; 1853 } 1854 xfer = fw_xfer_alloc(); 1855 if(xfer == NULL){ 1856 return; 1857 } 1858 xfer->spd = spd; 1859 xfer->send.buf = malloc(16, M_DEVBUF, M_DONTWAIT); 1860 resfp = (struct fw_pkt *)xfer->send.buf; 1861 switch(fp->mode.common.tcode){ 1862 case FWTCODE_WREQQ: 1863 case FWTCODE_WREQB: 1864 resfp->mode.hdr.tcode = FWTCODE_WRES; 1865 xfer->send.len = 12; 1866 break; 1867 case FWTCODE_RREQQ: 1868 resfp->mode.hdr.tcode = FWTCODE_RRESQ; 1869 xfer->send.len = 16; 1870 break; 1871 case FWTCODE_RREQB: 1872 resfp->mode.hdr.tcode = FWTCODE_RRESB; 1873 xfer->send.len = 16; 1874 break; 1875 case FWTCODE_LREQ: 1876 resfp->mode.hdr.tcode = FWTCODE_LRES; 1877 xfer->send.len = 16; 1878 break; 1879 } 1880 resfp->mode.hdr.dst = fp->mode.hdr.src; 1881 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt; 1882 resfp->mode.hdr.pri = fp->mode.hdr.pri; 1883 resfp->mode.rresb.rtcode = 7; 1884 resfp->mode.rresb.extcode = 0; 1885 resfp->mode.rresb.len = 0; 1886/* 1887 xfer->act.hand = fw_asy_callback; 1888*/ 1889 xfer->act.hand = fw_xfer_free; 1890 if(fw_asyreq(fc, -1, xfer)){ 1891 fw_xfer_free( xfer); 1892 return; 1893 } 1894 goto err; 1895 } 1896 switch(bind->xfer->act_type){ 1897 case FWACT_XFER: 1898 xfer = fw_xfer_alloc(); 1899 if(xfer == NULL) goto err; 1900 xfer->fc = bind->xfer->fc; 1901 xfer->sc = bind->xfer->sc; 1902 xfer->recv.buf = buf; 1903 xfer->recv.len = len; 1904 xfer->recv.off = off; 1905 xfer->spd = spd; 1906 xfer->act.hand = bind->xfer->act.hand; 1907 if (fc->status != FWBUSRESET) 1908 xfer->act.hand(xfer); 1909 else 1910 STAILQ_INSERT_TAIL(&fc->pending, xfer, link); 1911 return; 1912 break; 1913 case FWACT_CH: 1914 if(fc->ir[bind->xfer->sub]->queued >= 1915 fc->ir[bind->xfer->sub]->maxq){ 1916 device_printf(fc->bdev, 1917 "Discard a packet %x %d\n", 1918 bind->xfer->sub, 1919 fc->ir[bind->xfer->sub]->queued); 1920 goto err; 1921 } 1922 xfer = fw_xfer_alloc(); 1923 if(xfer == NULL) goto err; 1924 xfer->recv.buf = buf; 1925 xfer->recv.len = len; 1926 xfer->recv.off = off; 1927 xfer->spd = spd; 1928 s = splfw(); 1929 fc->ir[bind->xfer->sub]->queued++; 1930 STAILQ_INSERT_TAIL(&fc->ir[bind->xfer->sub]->q, xfer, link); 1931 splx(s); 1932 1933 wakeup((caddr_t)fc->ir[bind->xfer->sub]); 1934 1935 return; 1936 break; 1937 default: 1938 goto err; 1939 break; 1940 } 1941 break; 1942 case FWTCODE_STREAM: 1943 { 1944 struct fw_xferq *xferq; 1945 1946 xferq = fc->ir[sub]; 1947#if 0 1948 printf("stream rcv dma %d len %d off %d spd %d\n", 1949 sub, len, off, spd); 1950#endif 1951 if(xferq->queued >= xferq->maxq) { 1952 printf("receive queue is full\n"); 1953 goto err; 1954 } 1955 xfer = fw_xfer_alloc(); 1956 if(xfer == NULL) goto err; 1957 xfer->recv.buf = buf; 1958 xfer->recv.len = len; 1959 xfer->recv.off = off; 1960 xfer->spd = spd; 1961 s = splfw(); 1962 xferq->queued++; 1963 STAILQ_INSERT_TAIL(&xferq->q, xfer, link); 1964 splx(s); 1965 sc = device_get_softc(fc->bdev); 1966#if __FreeBSD_version >= 500000 1967 if (SEL_WAITING(&xferq->rsel)) 1968#else 1969 if (&xferq->rsel.si_pid != 0) 1970#endif 1971 selwakeup(&xferq->rsel); 1972 if (xferq->flag & FWXFERQ_WAKEUP) { 1973 xferq->flag &= ~FWXFERQ_WAKEUP; 1974 wakeup((caddr_t)xferq); 1975 } 1976 if (xferq->flag & FWXFERQ_HANDLER) { 1977 xferq->hand(xferq); 1978 } 1979 return; 1980 break; 1981 } 1982 default: 1983 printf("fw_rcv: unknow tcode\n"); 1984 break; 1985 } 1986err: 1987 free(buf, M_DEVBUF); 1988} 1989 1990/* 1991 * Post process for Bus Manager election process. 1992 */ 1993static void 1994fw_try_bmr_callback(struct fw_xfer *xfer) 1995{ 1996 struct fw_pkt *sfp,*rfp; 1997 struct firewire_comm *fc; 1998 1999 if(xfer == NULL) return; 2000 fc = xfer->fc; 2001 if(xfer->resp != 0){ 2002 goto error; 2003 } 2004 2005 if(xfer->send.buf == NULL){ 2006 goto error; 2007 } 2008 sfp = (struct fw_pkt *)xfer->send.buf; 2009 2010 if(xfer->recv.buf == NULL){ 2011 goto error; 2012 } 2013 rfp = (struct fw_pkt *)xfer->recv.buf; 2014 CSRARC(fc, BUS_MGR_ID) 2015 = fc->set_bmr(fc, ntohl(rfp->mode.lres.payload[0]) & 0x3f); 2016 device_printf(fc->bdev, "new bus manager %d ", 2017 CSRARC(fc, BUS_MGR_ID)); 2018 if((htonl(rfp->mode.lres.payload[0]) & 0x3f) == fc->nodeid){ 2019 printf("(me)\n"); 2020/* If I am bus manager, optimize gapcount */ 2021 if(fc->max_hop <= MAX_GAPHOP ){ 2022 fw_phy_config(fc, -1, gap_cnt[fc->max_hop]); 2023 } 2024 }else{ 2025 printf("\n"); 2026 } 2027error: 2028 fw_xfer_free(xfer); 2029} 2030 2031/* 2032 * To candidate Bus Manager election process. 2033 */ 2034void 2035fw_try_bmr(void *arg) 2036{ 2037 struct fw_xfer *xfer; 2038 struct firewire_comm *fc = (struct firewire_comm *)arg; 2039 struct fw_pkt *fp; 2040 int err = 0; 2041 2042 xfer = fw_xfer_alloc(); 2043 if(xfer == NULL){ 2044 return; 2045 } 2046 xfer->send.len = 24; 2047 xfer->spd = 0; 2048 xfer->send.buf = malloc(24, M_DEVBUF, M_DONTWAIT); 2049 if(xfer->send.buf == NULL){ 2050 fw_xfer_free( xfer); 2051 return; 2052 } 2053 2054 fc->status = FWBUSMGRELECT; 2055 2056 xfer->send.off = 0; 2057 fp = (struct fw_pkt *)xfer->send.buf; 2058 fp->mode.lreq.dest_hi = htons(0xffff); 2059 fp->mode.lreq.tlrt = 0; 2060 fp->mode.lreq.tcode = FWTCODE_LREQ; 2061 fp->mode.lreq.pri = 0; 2062 fp->mode.lreq.src = 0; 2063 fp->mode.lreq.len = htons(8); 2064 fp->mode.lreq.extcode = htons(FW_LREQ_CMPSWAP); 2065 xfer->dst = FWLOCALBUS | fc->irm; 2066 fp->mode.lreq.dst = htons(xfer->dst); 2067 fp->mode.lreq.dest_lo = htonl(0xf0000000 | BUS_MGR_ID); 2068 fp->mode.lreq.payload[0] = 0x3f; 2069 fp->mode.lreq.payload[1] = fc->nodeid; 2070 xfer->act_type = FWACT_XFER; 2071 xfer->act.hand = fw_try_bmr_callback; 2072 2073 err = fw_asyreq(fc, -1, xfer); 2074 if(err){ 2075 fw_xfer_free( xfer); 2076 return; 2077 } 2078 return; 2079} 2080 2081#ifdef FW_VMACCESS 2082/* 2083 * Software implementation for physical memory block access. 2084 * XXX:Too slow, usef for debug purpose only. 2085 */ 2086static void 2087fw_vmaccess(struct fw_xfer *xfer){ 2088 struct fw_pkt *rfp, *sfp = NULL; 2089 u_int32_t *ld = (u_int32_t *)(xfer->recv.buf + xfer->recv.off); 2090 2091 printf("vmaccess spd:%2x len:%03x %d data:%08x %08x %08x %08x\n", 2092 xfer->spd, xfer->recv.len, xfer->recv.off, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 2093 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 2094 if(xfer->resp != 0){ 2095 fw_xfer_free( xfer); 2096 return; 2097 } 2098 if(xfer->recv.buf == NULL){ 2099 fw_xfer_free( xfer); 2100 return; 2101 } 2102 rfp = (struct fw_pkt *)xfer->recv.buf; 2103 switch(rfp->mode.hdr.tcode){ 2104 /* XXX need fix for 64bit arch */ 2105 case FWTCODE_WREQB: 2106 xfer->send.buf = malloc(12, M_DEVBUF, M_NOWAIT); 2107 xfer->send.len = 12; 2108 sfp = (struct fw_pkt *)xfer->send.buf; 2109 bcopy(rfp->mode.wreqb.payload, 2110 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len)); 2111 sfp->mode.wres.tcode = FWTCODE_WRES; 2112 sfp->mode.wres.rtcode = 0; 2113 break; 2114 case FWTCODE_WREQQ: 2115 xfer->send.buf = malloc(12, M_DEVBUF, M_NOWAIT); 2116 xfer->send.len = 12; 2117 sfp->mode.wres.tcode = FWTCODE_WRES; 2118 *((u_int32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data; 2119 sfp->mode.wres.rtcode = 0; 2120 break; 2121 case FWTCODE_RREQB: 2122 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_DEVBUF, M_NOWAIT); 2123 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len); 2124 sfp = (struct fw_pkt *)xfer->send.buf; 2125 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo), 2126 sfp->mode.rresb.payload, (u_int16_t)ntohs(rfp->mode.rreqb.len)); 2127 sfp->mode.rresb.tcode = FWTCODE_RRESB; 2128 sfp->mode.rresb.len = rfp->mode.rreqb.len; 2129 sfp->mode.rresb.rtcode = 0; 2130 sfp->mode.rresb.extcode = 0; 2131 break; 2132 case FWTCODE_RREQQ: 2133 xfer->send.buf = malloc(16, M_DEVBUF, M_NOWAIT); 2134 xfer->send.len = 16; 2135 sfp = (struct fw_pkt *)xfer->send.buf; 2136 sfp->mode.rresq.data = *(u_int32_t *)(ntohl(rfp->mode.rreqq.dest_lo)); 2137 sfp->mode.wres.tcode = FWTCODE_RRESQ; 2138 sfp->mode.rresb.rtcode = 0; 2139 break; 2140 default: 2141 fw_xfer_free( xfer); 2142 return; 2143 } 2144 xfer->send.off = 0; 2145 sfp->mode.hdr.dst = rfp->mode.hdr.src; 2146 xfer->dst = ntohs(rfp->mode.hdr.src); 2147 xfer->act.hand = fw_xfer_free; 2148 xfer->retry_req = fw_asybusy; 2149 2150 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt; 2151 sfp->mode.hdr.pri = 0; 2152 2153 fw_asyreq(xfer->fc, -1, xfer); 2154/**/ 2155 return; 2156} 2157#endif 2158 2159/* 2160 * CRC16 check-sum for IEEE1394 register blocks. 2161 */ 2162u_int16_t 2163fw_crc16(u_int32_t *ptr, u_int32_t len){ 2164 u_int32_t i, sum, crc = 0; 2165 int shift; 2166 len = (len + 3) & ~3; 2167 for(i = 0 ; i < len ; i+= 4){ 2168 for( shift = 28 ; shift >= 0 ; shift -= 4){ 2169 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf; 2170 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum; 2171 } 2172 crc &= 0xffff; 2173 } 2174 return((u_int16_t) crc); 2175} 2176 2177DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,0,0); 2178MODULE_VERSION(firewire, 1); 2179