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 * $FreeBSD$ 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 60 int firewire_debug=0; 61 SYSCTL_NODE(_hw, OID_AUTO, firewire, CTLFLAG_RD, 0, "FireWire Subsystem"); 62 SYSCTL_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 70 devclass_t firewire_devclass; 71 72 static int firewire_match __P((device_t)); 73 static int firewire_attach __P((device_t)); 74 static int firewire_detach __P((device_t)); 75 #if 0 76 static int firewire_shutdown __P((device_t)); 77 #endif 78 static device_t firewire_add_child __P((device_t, int, const char *, int)); 79 static void fw_try_bmr __P((void *)); 80 static void fw_try_bmr_callback __P((struct fw_xfer *)); 81 static void fw_asystart __P((struct fw_xfer *)); 82 static int fw_get_tlabel __P((struct firewire_comm *, struct fw_xfer *)); 83 static void fw_bus_probe __P((struct firewire_comm *)); 84 static void fw_bus_explore __P((struct firewire_comm *)); 85 static void fw_bus_explore_callback __P((struct fw_xfer *)); 86 static void fw_attach_dev __P((struct firewire_comm *)); 87 #ifdef FW_VMACCESS 88 static void fw_vmaccess __P((struct fw_xfer *)); 89 #endif 90 struct 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 93 static 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 }; 108 char linkspeed[7][0x10]={"S100","S200","S400","S800","S1600","S3200","Unknown"}; 109 110 #define MAX_GAPHOP 16 111 u_int gap_cnt[] = {1, 1, 4, 6, 9, 12, 14, 17, 112 20, 23, 25, 28, 31, 33, 36, 39, 42}; 113 114 extern struct cdevsw firewire_cdevsw; 115 116 static driver_t firewire_driver = { 117 "firewire", 118 firewire_methods, 119 sizeof(struct firewire_softc), 120 }; 121 122 /* 123 * transmitter buffer update. 124 */ 125 int 126 fw_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 cycle, 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 if(bulkxfer != NULL){ 153 bulkxfer2 = STAILQ_NEXT(bulkxfer, link); 154 #if 0 155 if(it->flag & FWXFERQ_DV && bulkxfer2 == NULL){ 156 bulkxfer2 = STAILQ_FIRST(&it->stfree); 157 STAILQ_REMOVE_HEAD(&it->stfree, link); 158 bcopy(bulkxfer->buf, bulkxfer2->buf, 159 it->psize * it->btpacket); 160 STAILQ_INSERT_TAIL(&it->stvalid, bulkxfer2, link); 161 } 162 #endif 163 } 164 it->stdma = bulkxfer; 165 it->stdma2 = bulkxfer2; 166 167 if(it->flag & FWXFERQ_DV){ 168 chtag = it->flag & 0xff; 169 dvloop: 170 if(it->dvdma == NULL){ 171 dvbuf = STAILQ_FIRST(&it->dvvalid); 172 if(dvbuf != NULL){ 173 STAILQ_REMOVE_HEAD(&it->dvvalid, link); 174 it->dvdma = dvbuf; 175 it->queued = 0; 176 } 177 } 178 if(it->dvdma == NULL) 179 goto out; 180 181 it->stproc = STAILQ_FIRST(&it->stfree); 182 if(it->stproc != NULL){ 183 STAILQ_REMOVE_HEAD(&it->stfree, link); 184 }else{ 185 goto out; 186 } 187 #if DV_PAL 188 #define DVSEC 3 189 #define DVFRAC 75 /* PAL: 25 Hz (1875 = 25 * 3) */ 190 #define DVDIFF 5 /* 125 = (8000/300 - 25) * 3 */ 191 #else 192 #define DVSEC 100 193 #define DVFRAC 2997 /* NTSC: 29.97 Hz (2997 = 29.97 * 100) */ 194 #define DVDIFF 203 /* 203 = (8000/250 - 29.97) * 100 */ 195 #endif 196 #define CYCLEFRAC 0xc00 197 cycle = (u_int64_t) 8000 * DVSEC * it->dvsync; 198 /* least significant 12 bits */ 199 dvsync = (cycle * CYCLEFRAC / DVFRAC) % CYCLEFRAC; 200 /* most significat 4 bits */ 201 cycle = (cycle / DVFRAC + it->dvoffset) & 0xf; 202 fp = (struct fw_pkt *)(it->dvdma->buf); 203 #if 1 204 fp->mode.ld[2] = htonl(0x80000000 | (cycle << 12) | dvsync); 205 #else 206 fp->mode.ld[2] = htonl(0x80000000 | dvsync); 207 #endif 208 it->dvsync ++; 209 it->dvsync %= 2997; 210 211 for( i = 0, j = 0 ; i < it->dvpacket ; i++){ 212 bcopy(it->dvdma->buf + it->queued * it->psize, 213 it->stproc->buf + j * it->psize, it->psize); 214 fp = (struct fw_pkt *)(it->stproc->buf + j * it->psize); 215 fp->mode.stream.len = htons(488); 216 fp->mode.stream.chtag = chtag; 217 fp->mode.stream.tcode = FWTCODE_STREAM; 218 fp->mode.ld[1] = htonl((fc->nodeid << 24) | 0x00780000 | it->dvdbc); 219 it->dvdbc++; 220 it->dvdbc %= 256; 221 it->queued ++; 222 j++; 223 it->dvdiff += DVDIFF; 224 if(it->dvdiff >= DVFRAC){ 225 it->dvdiff %= DVFRAC; 226 fp = (struct fw_pkt *)(it->stproc->buf + j * it->psize); 227 228 fp->mode.stream.len = htons(0x8); 229 fp->mode.stream.chtag = chtag; 230 fp->mode.stream.tcode = FWTCODE_STREAM; 231 fp->mode.ld[1] = htonl((fc->nodeid << 24) | 232 0x00780000 | it->dvdbc); 233 j++; 234 } 235 } 236 it->stproc->npacket = j; 237 STAILQ_INSERT_TAIL(&it->stvalid, it->stproc, link); 238 if(it->queued >= it->dvpacket){ 239 STAILQ_INSERT_TAIL(&it->dvfree, it->dvdma, link); 240 it->dvdma = NULL; 241 wakeup(it); 242 goto dvloop; 243 } 244 } 245 out: 246 splx(s); 247 return err; 248 } 249 /* 250 * receving buffer update. 251 */ 252 int 253 fw_rbuf_update(struct firewire_comm *fc, int sub, int flag){ 254 struct fw_bulkxfer *bulkxfer, *bulkxfer2 = NULL; 255 struct fw_xferq *ir; 256 int s, err = 0; 257 258 ir = fc->ir[sub]; 259 s = splfw(); 260 if(ir->stdma != NULL){ 261 if(flag != 0){ 262 STAILQ_INSERT_TAIL(&ir->stvalid, ir->stdma, link); 263 }else{ 264 ir->stdma->flag = 0; 265 STAILQ_INSERT_TAIL(&ir->stfree, ir->stdma, link); 266 } 267 } 268 if(ir->stdma2 != NULL){ 269 bulkxfer = ir->stdma2; 270 bulkxfer2 = STAILQ_FIRST(&ir->stfree); 271 if(bulkxfer2 != NULL){ 272 STAILQ_REMOVE_HEAD(&ir->stfree, link); 273 } 274 }else{ 275 bulkxfer = STAILQ_FIRST(&ir->stfree); 276 if(bulkxfer != NULL){ 277 STAILQ_REMOVE_HEAD(&ir->stfree, link); 278 bulkxfer2 = STAILQ_FIRST(&ir->stfree); 279 if(bulkxfer2 != NULL){ 280 STAILQ_REMOVE_HEAD(&ir->stfree, link); 281 } 282 }else{ 283 device_printf(fc->bdev, "no free chunk available\n"); 284 bulkxfer = STAILQ_FIRST(&ir->stvalid); 285 STAILQ_REMOVE_HEAD(&ir->stvalid, link); 286 } 287 } 288 splx(s); 289 ir->stdma = bulkxfer; 290 ir->stdma2 = bulkxfer2; 291 return err; 292 } 293 294 /* 295 * To lookup node id. from EUI64. 296 */ 297 struct fw_device * 298 fw_noderesolve(struct firewire_comm *fc, struct fw_eui64 eui) 299 { 300 struct fw_device *fwdev; 301 for(fwdev = TAILQ_FIRST(&fc->devices); fwdev != NULL; 302 fwdev = TAILQ_NEXT(fwdev, link)){ 303 if(fwdev->eui.hi == eui.hi && fwdev->eui.lo == eui.lo){ 304 break; 305 } 306 } 307 if(fwdev == NULL) return NULL; 308 if(fwdev->status == FWDEVINVAL) return NULL; 309 return fwdev; 310 } 311 312 /* 313 * Async. request procedure for userland application. 314 */ 315 int 316 fw_asyreq(struct firewire_comm *fc, int sub, struct fw_xfer *xfer) 317 { 318 int err = 0; 319 struct fw_xferq *xferq; 320 int tl = 0, len; 321 struct fw_pkt *fp; 322 int tcode; 323 struct tcode_info *info; 324 325 if(xfer == NULL) return EINVAL; 326 if(xfer->send.len > MAXREC(fc->maxrec)){ 327 printf("send.len > maxrec\n"); 328 return EINVAL; 329 } 330 if(xfer->act.hand == NULL){ 331 printf("act.hand == NULL\n"); 332 return EINVAL; 333 } 334 fp = (struct fw_pkt *)xfer->send.buf; 335 336 tcode = fp->mode.common.tcode & 0xf; 337 info = &fc->tcode[tcode]; 338 if (info->flag == 0) { 339 printf("invalid tcode=%d\n", tcode); 340 return EINVAL; 341 } 342 if (info->flag & FWTI_REQ) 343 xferq = fc->atq; 344 else 345 xferq = fc->ats; 346 len = info->hdr_len; 347 if (info->flag & FWTI_BLOCK_STR) 348 len += ntohs(fp->mode.stream.len); 349 else if (info->flag & FWTI_BLOCK_ASY) 350 len += ntohs(fp->mode.rresb.len); 351 if( len > xfer->send.len ){ 352 printf("len(%d) > send.len(%d) (tcode=%d)\n", 353 len, xfer->send.len, tcode); 354 return EINVAL; 355 } 356 xfer->send.len = len; 357 358 if(xferq->start == NULL){ 359 printf("xferq->start == NULL\n"); 360 return EINVAL; 361 } 362 if(!(xferq->queued < xferq->maxq)){ 363 device_printf(fc->bdev, "Discard a packet (queued=%d)\n", 364 xferq->queued); 365 return EINVAL; 366 } 367 368 369 if (info->flag & FWTI_TLABEL) { 370 if((tl = fw_get_tlabel(fc, xfer)) == -1 ) 371 return EIO; 372 fp->mode.hdr.tlrt = tl << 2; 373 } 374 375 xfer->tl = tl; 376 xfer->tcode = tcode; 377 xfer->resp = 0; 378 xfer->fc = fc; 379 xfer->q = xferq; 380 xfer->act_type = FWACT_XFER; 381 xfer->retry_req = fw_asybusy; 382 383 fw_asystart(xfer); 384 return err; 385 } 386 /* 387 * Wakeup blocked process. 388 */ 389 void 390 fw_asy_callback(struct fw_xfer *xfer){ 391 wakeup(xfer); 392 return; 393 } 394 /* 395 * Postpone to later retry. 396 */ 397 void fw_asybusy(struct fw_xfer *xfer){ 398 #if 1 399 printf("fw_asybusy\n"); 400 #endif 401 #if XFER_TIMEOUT 402 untimeout(fw_xfer_timeout, (void *)xfer, xfer->ch); 403 #endif 404 /* 405 xfer->ch = timeout((timeout_t *)fw_asystart, (void *)xfer, 20000); 406 */ 407 DELAY(20000); 408 fw_asystart(xfer); 409 return; 410 } 411 #if XFER_TIMEOUT 412 /* 413 * Post timeout for async. request. 414 */ 415 void 416 fw_xfer_timeout(void *arg) 417 { 418 int s; 419 struct fw_xfer *xfer; 420 421 xfer = (struct fw_xfer *)arg; 422 printf("fw_xfer_timeout status=%d resp=%d\n", xfer->state, xfer->resp); 423 /* XXX set error code */ 424 s = splfw(); 425 xfer->act.hand(xfer); 426 splx(s); 427 } 428 #endif 429 /* 430 * Async. request with given xfer structure. 431 */ 432 static void 433 fw_asystart(struct fw_xfer *xfer) 434 { 435 struct firewire_comm *fc = xfer->fc; 436 int s; 437 if(xfer->retry++ >= fc->max_asyretry){ 438 xfer->resp = EBUSY; 439 xfer->state = FWXF_BUSY; 440 xfer->act.hand(xfer); 441 return; 442 } 443 #if 0 /* XXX allow bus explore packets only after bus rest */ 444 if (fc->status < FWBUSEXPLORE) { 445 xfer->resp = EAGAIN; 446 xfer->state = FWXF_BUSY; 447 if (xfer->act.hand != NULL) 448 xfer->act.hand(xfer); 449 return; 450 } 451 #endif 452 s = splfw(); 453 xfer->state = FWXF_INQ; 454 STAILQ_INSERT_TAIL(&xfer->q->q, xfer, link); 455 xfer->q->queued ++; 456 splx(s); 457 /* XXX just queue for mbuf */ 458 if (xfer->mbuf == NULL) 459 xfer->q->start(fc); 460 #if XFER_TIMEOUT 461 if (xfer->act.hand != NULL) 462 xfer->ch = timeout(fw_xfer_timeout, (void *)xfer, hz); 463 #endif 464 return; 465 } 466 467 static int 468 firewire_match( device_t dev ) 469 { 470 device_set_desc(dev, "IEEE1394(FireWire) bus"); 471 return -140; 472 } 473 474 /* 475 * The attach routine. 476 */ 477 static int 478 firewire_attach( device_t dev ) 479 { 480 int i, unitmask, mn; 481 struct firewire_softc *sc = device_get_softc(dev); 482 device_t pa = device_get_parent(dev); 483 struct firewire_comm *fc; 484 dev_t d; 485 486 fc = (struct firewire_comm *)device_get_softc(pa); 487 sc->fc = fc; 488 489 unitmask = UNIT2MIN(device_get_unit(dev)); 490 491 if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA; 492 for ( i = 0 ; i < fc->nisodma ; i++ ){ 493 mn = unitmask | i; 494 /* XXX device name should be improved */ 495 d = make_dev(&firewire_cdevsw, unit2minor(mn), 496 UID_ROOT, GID_OPERATOR, 0660, 497 "fw%x", mn); 498 #if __FreeBSD_version >= 500000 499 if (i == 0) 500 sc->dev = d; 501 else 502 dev_depends(sc->dev, d); 503 #else 504 sc->dev[i] = d; 505 #endif 506 } 507 d = make_dev(&firewire_cdevsw, unit2minor(unitmask | FWMEM_FLAG), 508 UID_ROOT, GID_OPERATOR, 0660, 509 "fwmem%d", device_get_unit(dev)); 510 #if __FreeBSD_version >= 500000 511 dev_depends(sc->dev, d); 512 #else 513 sc->dev[i] = d; 514 #endif 515 sc->fc->timeouthandle = timeout((timeout_t *)sc->fc->timeout, (void *)sc->fc, hz * 10); 516 517 callout_init(&sc->fc->busprobe_callout 518 #if __FreeBSD_version >= 500000 519 , /* mpsafe? */ 0); 520 #else 521 ); 522 #endif 523 524 /* Locate our children */ 525 bus_generic_probe(dev); 526 527 /* launch attachement of the added children */ 528 bus_generic_attach(dev); 529 530 /* bus_reset */ 531 fc->ibr(fc); 532 533 return 0; 534 } 535 536 /* 537 * Attach it as child. 538 */ 539 static device_t 540 firewire_add_child(device_t dev, int order, const char *name, int unit) 541 { 542 device_t child; 543 struct firewire_softc *sc; 544 545 sc = (struct firewire_softc *)device_get_softc(dev); 546 child = device_add_child(dev, name, unit); 547 if (child) { 548 device_set_ivars(child, sc->fc); 549 device_probe_and_attach(child); 550 } 551 552 return child; 553 } 554 555 /* 556 * Dettach it. 557 */ 558 static int 559 firewire_detach( device_t dev ) 560 { 561 struct firewire_softc *sc; 562 563 sc = (struct firewire_softc *)device_get_softc(dev); 564 565 #if __FreeBSD_version >= 500000 566 destroy_dev(sc->dev); 567 #else 568 { 569 int j; 570 for (j = 0 ; j < sc->fc->nisodma + 1; j++) 571 destroy_dev(sc->dev[j]); 572 } 573 #endif 574 /* XXX xfree_free and untimeout on all xfers */ 575 untimeout((timeout_t *)sc->fc->timeout, sc->fc, sc->fc->timeouthandle); 576 free(sc->fc->topology_map, M_DEVBUF); 577 free(sc->fc->speed_map, M_DEVBUF); 578 bus_generic_detach(dev); 579 return(0); 580 } 581 #if 0 582 static int 583 firewire_shutdown( device_t dev ) 584 { 585 return 0; 586 } 587 #endif 588 589 /* 590 * Called after bus reset. 591 */ 592 void 593 fw_busreset(struct firewire_comm *fc) 594 { 595 int i; 596 struct fw_xfer *xfer; 597 598 switch(fc->status){ 599 case FWBUSMGRELECT: 600 untimeout((timeout_t *)fw_try_bmr, (void *)fc, fc->bmrhandle); 601 break; 602 default: 603 break; 604 } 605 fc->status = FWBUSRESET; 606 /* XXX: discard all queued packet */ 607 while((xfer = STAILQ_FIRST(&fc->atq->q)) != NULL){ 608 STAILQ_REMOVE_HEAD(&fc->atq->q, link); 609 xfer->resp = EAGAIN; 610 switch(xfer->act_type){ 611 case FWACT_XFER: 612 fw_xfer_done(xfer); 613 break; 614 default: 615 break; 616 } 617 fw_xfer_free( xfer); 618 } 619 while((xfer = STAILQ_FIRST(&fc->ats->q)) != NULL){ 620 STAILQ_REMOVE_HEAD(&fc->ats->q, link); 621 xfer->resp = EAGAIN; 622 switch(xfer->act_type){ 623 case FWACT_XFER: 624 fw_xfer_done(xfer); 625 default: 626 break; 627 } 628 fw_xfer_free( xfer); 629 } 630 for(i = 0; i < fc->nisodma; i++) 631 while((xfer = STAILQ_FIRST(&fc->it[i]->q)) != NULL){ 632 STAILQ_REMOVE_HEAD(&fc->it[i]->q, link); 633 xfer->resp = 0; 634 switch(xfer->act_type){ 635 case FWACT_XFER: 636 fw_xfer_done(xfer); 637 break; 638 default: 639 break; 640 } 641 fw_xfer_free( xfer); 642 } 643 644 CSRARC(fc, STATE_CLEAR) 645 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 646 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 647 CSRARC(fc, NODE_IDS) = 0x3f; 648 649 CSRARC(fc, TOPO_MAP + 8) = 0; 650 fc->irm = -1; 651 652 fc->max_node = -1; 653 654 for(i = 2; i < 0x100/4 - 2 ; i++){ 655 CSRARC(fc, SPED_MAP + i * 4) = 0; 656 } 657 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 658 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 659 CSRARC(fc, RESET_START) = 0; 660 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0; 661 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19; 662 CSRARC(fc, CYCLE_TIME) = 0x0; 663 CSRARC(fc, BUS_TIME) = 0x0; 664 CSRARC(fc, BUS_MGR_ID) = 0x3f; 665 CSRARC(fc, BANDWIDTH_AV) = 4915; 666 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff; 667 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff; 668 CSRARC(fc, IP_CHANNELS) = (1 << 31); 669 670 CSRARC(fc, CONF_ROM) = 0x04 << 24; 671 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */ 672 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 | 673 1 << 28 | 0xff << 16 | 0x09 << 8; 674 CSRARC(fc, CONF_ROM + 0xc) = 0; 675 676 /* DV depend CSRs see blue book */ 677 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON; 678 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON; 679 680 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 ); 681 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 682 } 683 684 /* Call once after reboot */ 685 void fw_init(struct firewire_comm *fc) 686 { 687 int i; 688 struct csrdir *csrd; 689 #ifdef FW_VMACCESS 690 struct fw_xfer *xfer; 691 struct fw_bind *fwb; 692 #endif 693 694 fc->max_asyretry = FW_MAXASYRTY; 695 696 fc->arq->queued = 0; 697 fc->ars->queued = 0; 698 fc->atq->queued = 0; 699 fc->ats->queued = 0; 700 701 fc->arq->psize = PAGE_SIZE; 702 fc->ars->psize = PAGE_SIZE; 703 fc->atq->psize = 0; 704 fc->ats->psize = 0; 705 706 707 fc->arq->buf = NULL; 708 fc->ars->buf = NULL; 709 fc->atq->buf = NULL; 710 fc->ats->buf = NULL; 711 712 fc->arq->flag = FWXFERQ_PACKET; 713 fc->ars->flag = FWXFERQ_PACKET; 714 fc->atq->flag = FWXFERQ_PACKET; 715 fc->ats->flag = FWXFERQ_PACKET; 716 717 STAILQ_INIT(&fc->atq->q); 718 STAILQ_INIT(&fc->ats->q); 719 720 for( i = 0 ; i < fc->nisodma ; i ++ ){ 721 fc->it[i]->queued = 0; 722 fc->ir[i]->queued = 0; 723 724 fc->it[i]->start = NULL; 725 fc->ir[i]->start = NULL; 726 727 fc->it[i]->buf = NULL; 728 fc->ir[i]->buf = NULL; 729 730 fc->it[i]->flag = FWXFERQ_STREAM; 731 fc->ir[i]->flag = FWXFERQ_STREAM; 732 733 STAILQ_INIT(&fc->it[i]->q); 734 STAILQ_INIT(&fc->ir[i]->q); 735 736 STAILQ_INIT(&fc->it[i]->binds); 737 STAILQ_INIT(&fc->ir[i]->binds); 738 } 739 740 fc->arq->maxq = FWMAXQUEUE; 741 fc->ars->maxq = FWMAXQUEUE; 742 fc->atq->maxq = FWMAXQUEUE; 743 fc->ats->maxq = FWMAXQUEUE; 744 745 for( i = 0 ; i < fc->nisodma ; i++){ 746 fc->ir[i]->maxq = FWMAXQUEUE; 747 fc->it[i]->maxq = FWMAXQUEUE; 748 } 749 /* Initialize csr registers */ 750 fc->topology_map = (struct fw_topology_map *)malloc( 751 sizeof(struct fw_topology_map), 752 M_DEVBUF, M_DONTWAIT | M_ZERO); 753 fc->speed_map = (struct fw_speed_map *)malloc( 754 sizeof(struct fw_speed_map), 755 M_DEVBUF, M_DONTWAIT | M_ZERO); 756 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16; 757 CSRARC(fc, TOPO_MAP + 4) = 1; 758 CSRARC(fc, SPED_MAP) = 0x3f1 << 16; 759 CSRARC(fc, SPED_MAP + 4) = 1; 760 761 TAILQ_INIT(&fc->devices); 762 STAILQ_INIT(&fc->pending); 763 764 /* Initialize csr ROM work space */ 765 SLIST_INIT(&fc->ongocsr); 766 SLIST_INIT(&fc->csrfree); 767 for( i = 0 ; i < FWMAXCSRDIR ; i++){ 768 csrd = (struct csrdir *) malloc(sizeof(struct csrdir), M_DEVBUF,M_DONTWAIT); 769 if(csrd == NULL) break; 770 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 771 } 772 773 /* Initialize Async handlers */ 774 STAILQ_INIT(&fc->binds); 775 for( i = 0 ; i < 0x40 ; i++){ 776 STAILQ_INIT(&fc->tlabels[i]); 777 } 778 779 /* DV depend CSRs see blue book */ 780 #if 0 781 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */ 782 CSRARC(fc, oPCR) = 0x8000007a; 783 for(i = 4 ; i < 0x7c/4 ; i+=4){ 784 CSRARC(fc, i + oPCR) = 0x8000007a; 785 } 786 787 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */ 788 CSRARC(fc, iPCR) = 0x803f0000; 789 for(i = 4 ; i < 0x7c/4 ; i+=4){ 790 CSRARC(fc, i + iPCR) = 0x0; 791 } 792 #endif 793 794 795 #ifdef FW_VMACCESS 796 xfer = fw_xfer_alloc(); 797 if(xfer == NULL) return; 798 799 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_DEVBUF, M_DONTWAIT); 800 if(fwb == NULL){ 801 fw_xfer_free(xfer); 802 } 803 xfer->act.hand = fw_vmaccess; 804 xfer->act_type = FWACT_XFER; 805 xfer->fc = fc; 806 xfer->sc = NULL; 807 808 fwb->start_hi = 0x2; 809 fwb->start_lo = 0; 810 fwb->addrlen = 0xffffffff; 811 fwb->xfer = xfer; 812 fw_bindadd(fc, fwb); 813 #endif 814 } 815 816 /* 817 * To lookup binded process from IEEE1394 address. 818 */ 819 struct fw_bind * 820 fw_bindlookup(struct firewire_comm *fc, u_int32_t dest_hi, u_int32_t dest_lo) 821 { 822 struct fw_bind *tfw; 823 for(tfw = STAILQ_FIRST(&fc->binds) ; tfw != NULL ; 824 tfw = STAILQ_NEXT(tfw, fclist)){ 825 if(tfw->xfer->act_type != FWACT_NULL && 826 tfw->start_hi == dest_hi && 827 tfw->start_lo <= dest_lo && 828 (tfw->start_lo + tfw->addrlen) > dest_lo){ 829 return(tfw); 830 } 831 } 832 return(NULL); 833 } 834 835 /* 836 * To bind IEEE1394 address block to process. 837 */ 838 int 839 fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb) 840 { 841 struct fw_bind *tfw, *tfw2 = NULL; 842 int err = 0; 843 tfw = STAILQ_FIRST(&fc->binds); 844 if(tfw == NULL){ 845 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 846 goto out; 847 } 848 if((tfw->start_hi > fwb->start_hi) || 849 (tfw->start_hi == fwb->start_hi && 850 (tfw->start_lo > (fwb->start_lo + fwb->addrlen)))){ 851 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 852 goto out; 853 } 854 for(; tfw != NULL; tfw = STAILQ_NEXT(tfw, fclist)){ 855 if((tfw->start_hi < fwb->start_hi) || 856 (tfw->start_hi == fwb->start_hi && 857 (tfw->start_lo + tfw->addrlen) < fwb->start_lo)){ 858 tfw2 = STAILQ_NEXT(tfw, fclist); 859 if(tfw2 == NULL) 860 break; 861 if((tfw2->start_hi > fwb->start_hi) || 862 (tfw2->start_hi == fwb->start_hi && 863 tfw2->start_lo > (fwb->start_lo + fwb->addrlen))){ 864 break; 865 }else{ 866 err = EBUSY; 867 goto out; 868 } 869 } 870 } 871 if(tfw != NULL){ 872 STAILQ_INSERT_AFTER(&fc->binds, tfw, fwb, fclist); 873 }else{ 874 STAILQ_INSERT_TAIL(&fc->binds, fwb, fclist); 875 } 876 out: 877 if(!err && fwb->xfer->act_type == FWACT_CH){ 878 STAILQ_INSERT_HEAD(&fc->ir[fwb->xfer->sub]->binds, fwb, chlist); 879 } 880 return err; 881 } 882 883 /* 884 * To free IEEE1394 address block. 885 */ 886 int 887 fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb) 888 { 889 int s; 890 891 s = splfw(); 892 /* shall we check the existance? */ 893 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist); 894 splx(s); 895 if (fwb->xfer) 896 fw_xfer_free(fwb->xfer); 897 898 return 0; 899 } 900 901 /* 902 * To free transaction label. 903 */ 904 static void 905 fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer) 906 { 907 struct tlabel *tl; 908 int s = splfw(); 909 910 for( tl = STAILQ_FIRST(&fc->tlabels[xfer->tl]); tl != NULL; 911 tl = STAILQ_NEXT(tl, link)){ 912 if(tl->xfer == xfer){ 913 STAILQ_REMOVE(&fc->tlabels[xfer->tl], tl, tlabel, link); 914 free(tl, M_DEVBUF); 915 splx(s); 916 return; 917 } 918 } 919 splx(s); 920 return; 921 } 922 923 /* 924 * To obtain XFER structure by transaction label. 925 */ 926 static struct fw_xfer * 927 fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel) 928 { 929 struct fw_xfer *xfer; 930 struct tlabel *tl; 931 int s = splfw(); 932 933 for( tl = STAILQ_FIRST(&fc->tlabels[tlabel]); tl != NULL; 934 tl = STAILQ_NEXT(tl, link)){ 935 if(tl->xfer->dst == node){ 936 xfer = tl->xfer; 937 splx(s); 938 return(xfer); 939 } 940 } 941 splx(s); 942 return(NULL); 943 } 944 945 /* 946 * To allocate IEEE1394 XFER structure. 947 */ 948 struct fw_xfer * 949 fw_xfer_alloc() 950 { 951 struct fw_xfer *xfer; 952 953 xfer = malloc(sizeof(struct fw_xfer), M_DEVBUF, M_DONTWAIT | M_ZERO); 954 if (xfer == NULL) 955 return xfer; 956 957 xfer->time = time_second; 958 xfer->sub = -1; 959 960 return xfer; 961 } 962 963 /* 964 * IEEE1394 XFER post process. 965 */ 966 void 967 fw_xfer_done(struct fw_xfer *xfer) 968 { 969 if (xfer->act.hand == NULL) 970 return; 971 972 #if XFER_TIMEOUT 973 untimeout(fw_xfer_timeout, (void *)xfer, xfer->ch); 974 #endif 975 976 if (xfer->fc->status != FWBUSRESET) 977 xfer->act.hand(xfer); 978 else { 979 printf("fw_xfer_done: pending\n"); 980 if (xfer->fc != NULL) 981 STAILQ_INSERT_TAIL(&xfer->fc->pending, xfer, link); 982 else 983 panic("fw_xfer_done: why xfer->fc is NULL?"); 984 } 985 } 986 987 /* 988 * To free IEEE1394 XFER structure. 989 */ 990 void 991 fw_xfer_free( struct fw_xfer* xfer) 992 { 993 int s; 994 if(xfer == NULL ) return; 995 if(xfer->state == FWXF_INQ){ 996 printf("fw_xfer_free FWXF_INQ\n"); 997 s = splfw(); 998 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link); 999 xfer->q->queued --; 1000 splx(s); 1001 } 1002 if(xfer->fc != NULL){ 1003 if(xfer->state == FWXF_START){ 1004 #if 0 /* this could happen if we call fwohci_arcv() before fwohci_txd() */ 1005 printf("fw_xfer_free FWXF_START\n"); 1006 #endif 1007 s = splfw(); 1008 xfer->q->drain(xfer->fc, xfer); 1009 splx(s); 1010 } 1011 } 1012 if(xfer->send.buf != NULL){ 1013 free(xfer->send.buf, M_DEVBUF); 1014 } 1015 if(xfer->recv.buf != NULL){ 1016 free(xfer->recv.buf, M_DEVBUF); 1017 } 1018 if(xfer->fc != NULL){ 1019 fw_tl_free(xfer->fc, xfer); 1020 } 1021 free(xfer, M_DEVBUF); 1022 } 1023 1024 /* 1025 * Callback for PHY configuration. 1026 */ 1027 static void 1028 fw_phy_config_callback(struct fw_xfer *xfer) 1029 { 1030 #if 0 1031 printf("phy_config done state=%d resp=%d\n", 1032 xfer->state, xfer->resp); 1033 #endif 1034 fw_xfer_free(xfer); 1035 /* XXX need bus reset ?? */ 1036 /* sc->fc->ibr(xfer->fc); LOOP */ 1037 } 1038 1039 /* 1040 * To configure PHY. 1041 */ 1042 static void 1043 fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count) 1044 { 1045 struct fw_xfer *xfer; 1046 struct fw_pkt *fp; 1047 1048 fc->status = FWBUSPHYCONF; 1049 1050 #if 0 1051 DELAY(100000); 1052 #endif 1053 xfer = fw_xfer_alloc(); 1054 xfer->send.len = 12; 1055 xfer->send.off = 0; 1056 xfer->fc = fc; 1057 xfer->retry_req = fw_asybusy; 1058 xfer->act.hand = fw_phy_config_callback; 1059 1060 xfer->send.buf = malloc(sizeof(u_int32_t), 1061 M_DEVBUF, M_DONTWAIT | M_ZERO); 1062 fp = (struct fw_pkt *)xfer->send.buf; 1063 fp->mode.ld[1] = 0; 1064 if (root_node >= 0) 1065 fp->mode.ld[1] |= htonl((root_node & 0x3f) << 24 | 1 << 23); 1066 if (gap_count >= 0) 1067 fp->mode.ld[1] |= htonl(1 << 22 | (gap_count & 0x3f) << 16); 1068 fp->mode.ld[2] = ~fp->mode.ld[1]; 1069 /* XXX Dangerous, how to pass PHY packet to device driver */ 1070 fp->mode.common.tcode |= FWTCODE_PHY; 1071 1072 if (firewire_debug) 1073 printf("send phy_config root_node=%d gap_count=%d\n", 1074 root_node, gap_count); 1075 fw_asyreq(fc, -1, xfer); 1076 } 1077 1078 #if 0 1079 /* 1080 * Dump self ID. 1081 */ 1082 static void 1083 fw_print_sid(u_int32_t sid) 1084 { 1085 union fw_self_id *s; 1086 s = (union fw_self_id *) &sid; 1087 printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d" 1088 " p0:%d p1:%d p2:%d i:%d m:%d\n", 1089 s->p0.phy_id, s->p0.link_active, s->p0.gap_count, 1090 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender, 1091 s->p0.power_class, s->p0.port0, s->p0.port1, 1092 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets); 1093 } 1094 #endif 1095 1096 /* 1097 * To receive self ID. 1098 */ 1099 void fw_sidrcv(struct firewire_comm* fc, caddr_t buf, u_int len, u_int off) 1100 { 1101 u_int32_t *p, *sid = (u_int32_t *)(buf + off); 1102 union fw_self_id *self_id; 1103 u_int i, j, node, c_port = 0, i_branch = 0; 1104 1105 fc->sid_cnt = len /(sizeof(u_int32_t) * 2); 1106 fc->status = FWBUSINIT; 1107 fc->max_node = fc->nodeid & 0x3f; 1108 CSRARC(fc, NODE_IDS) = ((u_int32_t)fc->nodeid) << 16; 1109 fc->status = FWBUSCYMELECT; 1110 fc->topology_map->crc_len = 2; 1111 fc->topology_map->generation ++; 1112 fc->topology_map->self_id_count = 0; 1113 fc->topology_map->node_count = 0; 1114 fc->speed_map->generation ++; 1115 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4; 1116 self_id = &fc->topology_map->self_id[0]; 1117 for(i = 0; i < fc->sid_cnt; i ++){ 1118 if (sid[1] != ~sid[0]) { 1119 printf("fw_sidrcv: invalid self-id packet\n"); 1120 sid += 2; 1121 continue; 1122 } 1123 *self_id = *((union fw_self_id *)sid); 1124 fc->topology_map->crc_len++; 1125 if(self_id->p0.sequel == 0){ 1126 fc->topology_map->node_count ++; 1127 c_port = 0; 1128 #if 0 1129 fw_print_sid(sid[0]); 1130 #endif 1131 node = self_id->p0.phy_id; 1132 if(fc->max_node < node){ 1133 fc->max_node = self_id->p0.phy_id; 1134 } 1135 /* XXX I'm not sure this is the right speed_map */ 1136 fc->speed_map->speed[node][node] 1137 = self_id->p0.phy_speed; 1138 for (j = 0; j < node; j ++) { 1139 fc->speed_map->speed[j][node] 1140 = fc->speed_map->speed[node][j] 1141 = min(fc->speed_map->speed[j][j], 1142 self_id->p0.phy_speed); 1143 } 1144 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) && 1145 (self_id->p0.link_active && self_id->p0.contender)) { 1146 fc->irm = self_id->p0.phy_id; 1147 } 1148 if(self_id->p0.port0 >= 0x2){ 1149 c_port++; 1150 } 1151 if(self_id->p0.port1 >= 0x2){ 1152 c_port++; 1153 } 1154 if(self_id->p0.port2 >= 0x2){ 1155 c_port++; 1156 } 1157 } 1158 if(c_port > 2){ 1159 i_branch += (c_port - 2); 1160 } 1161 sid += 2; 1162 self_id++; 1163 fc->topology_map->self_id_count ++; 1164 } 1165 device_printf(fc->bdev, "%d nodes", fc->max_node + 1); 1166 /* CRC */ 1167 fc->topology_map->crc = fw_crc16( 1168 (u_int32_t *)&fc->topology_map->generation, 1169 fc->topology_map->crc_len * 4); 1170 fc->speed_map->crc = fw_crc16( 1171 (u_int32_t *)&fc->speed_map->generation, 1172 fc->speed_map->crc_len * 4); 1173 /* byteswap and copy to CSR */ 1174 p = (u_int32_t *)fc->topology_map; 1175 for (i = 0; i <= fc->topology_map->crc_len; i++) 1176 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++); 1177 p = (u_int32_t *)fc->speed_map; 1178 CSRARC(fc, SPED_MAP) = htonl(*p++); 1179 CSRARC(fc, SPED_MAP + 4) = htonl(*p++); 1180 /* don't byte-swap u_int8_t array */ 1181 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4); 1182 1183 fc->max_hop = fc->max_node - i_branch; 1184 #if 1 1185 printf(", maxhop <= %d", fc->max_hop); 1186 #endif 1187 1188 if(fc->irm == -1 ){ 1189 printf(", Not found IRM capable node"); 1190 }else{ 1191 printf(", cable IRM = %d", fc->irm); 1192 if (fc->irm == fc->nodeid) 1193 printf(" (me)\n"); 1194 else 1195 printf("\n"); 1196 } 1197 1198 if((fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f) ){ 1199 if(fc->irm == ((CSRARC(fc, NODE_IDS) >> 16 ) & 0x3f)){ 1200 fc->status = FWBUSMGRDONE; 1201 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm); 1202 }else{ 1203 fc->status = FWBUSMGRELECT; 1204 fc->bmrhandle = timeout((timeout_t *)fw_try_bmr,(void *)fc, hz / 8); 1205 } 1206 }else{ 1207 fc->status = FWBUSMGRDONE; 1208 device_printf(fc->bdev, "BMR = %x\n", 1209 CSRARC(fc, BUS_MGR_ID)); 1210 } 1211 free(buf, M_DEVBUF); 1212 #if 1 1213 /* XXX optimize gap_count, if I am BMGR */ 1214 if(fc->irm == ((CSRARC(fc, NODE_IDS) >> 16 ) & 0x3f)){ 1215 fw_phy_config(fc, -1, gap_cnt[fc->max_hop]); 1216 } 1217 #endif 1218 #if 1 1219 callout_reset(&fc->busprobe_callout, hz/4, 1220 (void *)fw_bus_probe, (void *)fc); 1221 #else 1222 fw_bus_probe(fc); 1223 #endif 1224 } 1225 1226 /* 1227 * To probe devices on the IEEE1394 bus. 1228 */ 1229 static void 1230 fw_bus_probe(struct firewire_comm *fc) 1231 { 1232 int s; 1233 struct fw_device *fwdev, *next; 1234 1235 s = splfw(); 1236 fc->status = FWBUSEXPLORE; 1237 fc->retry_count = 0; 1238 1239 /* 1240 * Invalidate all devices, just after bus reset. Devices 1241 * to be removed has not been seen longer time. 1242 */ 1243 for(fwdev = TAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1244 next = TAILQ_NEXT(fwdev, link); 1245 if(fwdev->status != FWDEVINVAL){ 1246 fwdev->status = FWDEVINVAL; 1247 fwdev->rcnt = 0; 1248 }else if(fwdev->rcnt < FW_MAXDEVRCNT){ 1249 fwdev->rcnt ++; 1250 }else{ 1251 TAILQ_REMOVE(&fc->devices, fwdev, link); 1252 free(fwdev, M_DEVBUF); 1253 } 1254 } 1255 fc->ongonode = 0; 1256 fc->ongoaddr = CSRROMOFF; 1257 fc->ongodev = NULL; 1258 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1259 fw_bus_explore(fc); 1260 splx(s); 1261 } 1262 1263 /* 1264 * To collect device informations on the IEEE1394 bus. 1265 */ 1266 static void 1267 fw_bus_explore(struct firewire_comm *fc ) 1268 { 1269 int err = 0; 1270 struct fw_device *fwdev, *tfwdev; 1271 u_int32_t addr; 1272 struct fw_xfer *xfer; 1273 struct fw_pkt *fp; 1274 1275 if(fc->status != FWBUSEXPLORE) 1276 return; 1277 1278 loop: 1279 if(fc->ongonode == fc->nodeid) fc->ongonode++; 1280 1281 if(fc->ongonode > fc->max_node) goto done; 1282 if(fc->ongonode >= 0x3f) goto done; 1283 1284 /* check link */ 1285 /* XXX we need to check phy_id first */ 1286 if (!fc->topology_map->self_id[fc->ongonode].p0.link_active) { 1287 printf("fw_bus_explore: node %d link down\n", fc->ongonode); 1288 fc->ongonode++; 1289 goto loop; 1290 } 1291 1292 if(fc->ongoaddr <= CSRROMOFF && 1293 fc->ongoeui.hi == 0xffffffff && 1294 fc->ongoeui.lo == 0xffffffff ){ 1295 fc->ongoaddr = CSRROMOFF; 1296 addr = 0xf0000000 | fc->ongoaddr; 1297 }else if(fc->ongoeui.hi == 0xffffffff ){ 1298 fc->ongoaddr = CSRROMOFF + 0xc; 1299 addr = 0xf0000000 | fc->ongoaddr; 1300 }else if(fc->ongoeui.lo == 0xffffffff ){ 1301 fc->ongoaddr = CSRROMOFF + 0x10; 1302 addr = 0xf0000000 | fc->ongoaddr; 1303 }else if(fc->ongodev == NULL){ 1304 for(fwdev = TAILQ_FIRST(&fc->devices); fwdev != NULL; 1305 fwdev = TAILQ_NEXT(fwdev, link)){ 1306 if(fwdev->eui.hi == fc->ongoeui.hi && fwdev->eui.lo == fc->ongoeui.lo){ 1307 break; 1308 } 1309 } 1310 if(fwdev != NULL){ 1311 fwdev->dst = fc->ongonode; 1312 fwdev->status = FWDEVATTACHED; 1313 fc->ongonode++; 1314 fc->ongoaddr = CSRROMOFF; 1315 fc->ongodev = NULL; 1316 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1317 goto loop; 1318 } 1319 fwdev = malloc(sizeof(struct fw_device), M_DEVBUF, M_DONTWAIT); 1320 if(fwdev == NULL) 1321 return; 1322 fwdev->fc = fc; 1323 fwdev->rommax = 0; 1324 fwdev->dst = fc->ongonode; 1325 fwdev->eui.hi = fc->ongoeui.hi; fwdev->eui.lo = fc->ongoeui.lo; 1326 fwdev->status = FWDEVINIT; 1327 #if 0 1328 fwdev->speed = CSRARC(fc, SPED_MAP + 8 + fc->ongonode / 4) 1329 >> ((3 - (fc->ongonode % 4)) * 8); 1330 #else 1331 fwdev->speed = fc->speed_map->speed[fc->nodeid][fc->ongonode]; 1332 #endif 1333 1334 tfwdev = TAILQ_FIRST(&fc->devices); 1335 while( tfwdev != NULL && 1336 (tfwdev->eui.hi > fwdev->eui.hi) && 1337 ((tfwdev->eui.hi == fwdev->eui.hi) && 1338 tfwdev->eui.lo > fwdev->eui.lo)){ 1339 tfwdev = TAILQ_NEXT( tfwdev, link); 1340 } 1341 if(tfwdev == NULL){ 1342 TAILQ_INSERT_TAIL(&fc->devices, fwdev, link); 1343 }else{ 1344 TAILQ_INSERT_BEFORE(tfwdev, fwdev, link); 1345 } 1346 1347 device_printf(fc->bdev, "New %s device ID:%08x%08x\n", 1348 linkspeed[fwdev->speed], 1349 fc->ongoeui.hi, fc->ongoeui.lo); 1350 1351 fc->ongodev = fwdev; 1352 fc->ongoaddr = CSRROMOFF; 1353 addr = 0xf0000000 | fc->ongoaddr; 1354 }else{ 1355 addr = 0xf0000000 | fc->ongoaddr; 1356 } 1357 #if 0 1358 xfer = asyreqq(fc, FWSPD_S100, 0, 0, 1359 ((FWLOCALBUS | fc->ongonode) << 16) | 0xffff , addr, 1360 fw_bus_explore_callback); 1361 if(xfer == NULL) goto done; 1362 #else 1363 xfer = fw_xfer_alloc(); 1364 if(xfer == NULL){ 1365 goto done; 1366 } 1367 xfer->send.len = 16; 1368 xfer->spd = 0; 1369 xfer->send.buf = malloc(16, M_DEVBUF, M_DONTWAIT); 1370 if(xfer->send.buf == NULL){ 1371 fw_xfer_free( xfer); 1372 return; 1373 } 1374 1375 xfer->send.off = 0; 1376 fp = (struct fw_pkt *)xfer->send.buf; 1377 fp->mode.rreqq.dest_hi = htons(0xffff); 1378 fp->mode.rreqq.tlrt = 0; 1379 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1380 fp->mode.rreqq.pri = 0; 1381 fp->mode.rreqq.src = 0; 1382 xfer->dst = FWLOCALBUS | fc->ongonode; 1383 fp->mode.rreqq.dst = htons(xfer->dst); 1384 fp->mode.rreqq.dest_lo = htonl(addr); 1385 xfer->act.hand = fw_bus_explore_callback; 1386 1387 err = fw_asyreq(fc, -1, xfer); 1388 if(err){ 1389 fw_xfer_free( xfer); 1390 return; 1391 } 1392 #endif 1393 return; 1394 done: 1395 /* fw_attach_devs */ 1396 fc->status = FWBUSEXPDONE; 1397 if (firewire_debug) 1398 printf("bus_explore done\n"); 1399 fw_attach_dev(fc); 1400 return; 1401 1402 } 1403 1404 /* Portable Async. request read quad */ 1405 struct fw_xfer * 1406 asyreqq(struct firewire_comm *fc, u_int8_t spd, u_int8_t tl, u_int8_t rt, 1407 u_int32_t addr_hi, u_int32_t addr_lo, 1408 void (*hand) __P((struct fw_xfer*))) 1409 { 1410 struct fw_xfer *xfer; 1411 struct fw_pkt *fp; 1412 int err; 1413 1414 xfer = fw_xfer_alloc(); 1415 if(xfer == NULL){ 1416 return NULL; 1417 } 1418 xfer->send.len = 16; 1419 xfer->spd = spd; /* XXX:min(spd, fc->spd) */ 1420 xfer->send.buf = malloc(16, M_DEVBUF, M_DONTWAIT); 1421 if(xfer->send.buf == NULL){ 1422 fw_xfer_free( xfer); 1423 return NULL; 1424 } 1425 1426 xfer->send.off = 0; 1427 fp = (struct fw_pkt *)xfer->send.buf; 1428 fp->mode.rreqq.dest_hi = htons(addr_hi & 0xffff); 1429 if(tl & FWP_TL_VALID){ 1430 fp->mode.rreqq.tlrt = (tl & 0x3f) << 2; 1431 }else{ 1432 fp->mode.rreqq.tlrt = 0; 1433 } 1434 fp->mode.rreqq.tlrt |= rt & 0x3; 1435 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1436 fp->mode.rreqq.pri = 0; 1437 fp->mode.rreqq.src = 0; 1438 xfer->dst = addr_hi >> 16; 1439 fp->mode.rreqq.dst = htons(xfer->dst); 1440 fp->mode.rreqq.dest_lo = htonl(addr_lo); 1441 xfer->act.hand = hand; 1442 1443 err = fw_asyreq(fc, -1, xfer); 1444 if(err){ 1445 fw_xfer_free( xfer); 1446 return NULL; 1447 } 1448 return xfer; 1449 } 1450 1451 /* 1452 * Callback for the IEEE1394 bus information collection. 1453 */ 1454 static void 1455 fw_bus_explore_callback(struct fw_xfer *xfer) 1456 { 1457 struct firewire_comm *fc; 1458 struct fw_pkt *sfp,*rfp; 1459 struct csrhdr *chdr; 1460 struct csrdir *csrd; 1461 struct csrreg *csrreg; 1462 u_int32_t offset; 1463 1464 1465 if(xfer == NULL) return; 1466 fc = xfer->fc; 1467 if(xfer->resp != 0){ 1468 printf("resp != 0: node=%d addr=0x%x\n", 1469 fc->ongonode, fc->ongoaddr); 1470 fc->retry_count++; 1471 goto nextnode; 1472 } 1473 1474 if(xfer->send.buf == NULL){ 1475 printf("send.buf == NULL: node=%d addr=0x%x\n", 1476 fc->ongonode, fc->ongoaddr); 1477 printf("send.buf == NULL\n"); 1478 fc->retry_count++; 1479 goto nextnode; 1480 } 1481 sfp = (struct fw_pkt *)xfer->send.buf; 1482 1483 if(xfer->recv.buf == NULL){ 1484 printf("recv.buf == NULL: node=%d addr=0x%x\n", 1485 fc->ongonode, fc->ongoaddr); 1486 fc->retry_count++; 1487 goto nextnode; 1488 } 1489 rfp = (struct fw_pkt *)xfer->recv.buf; 1490 #if 0 1491 { 1492 u_int32_t *qld; 1493 int i; 1494 qld = (u_int32_t *)xfer->recv.buf; 1495 printf("len:%d\n", xfer->recv.len); 1496 for( i = 0 ; i <= xfer->recv.len && i < 32; i+= 4){ 1497 printf("0x%08x ", ntohl(rfp->mode.ld[i/4])); 1498 if((i % 16) == 15) printf("\n"); 1499 } 1500 if((i % 16) != 15) printf("\n"); 1501 } 1502 #endif 1503 if(fc->ongodev == NULL){ 1504 if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 | CSRROMOFF))){ 1505 rfp->mode.rresq.data = ntohl(rfp->mode.rresq.data); 1506 chdr = (struct csrhdr *)(&rfp->mode.rresq.data); 1507 /* If CSR is minimul confinguration, more investgation is not needed. */ 1508 if(chdr->info_len == 1){ 1509 goto nextnode; 1510 }else{ 1511 fc->ongoaddr = CSRROMOFF + 0xc; 1512 } 1513 }else if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 |(CSRROMOFF + 0xc)))){ 1514 fc->ongoeui.hi = ntohl(rfp->mode.rresq.data); 1515 fc->ongoaddr = CSRROMOFF + 0x10; 1516 }else if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 |(CSRROMOFF + 0x10)))){ 1517 fc->ongoeui.lo = ntohl(rfp->mode.rresq.data); 1518 if (fc->ongoeui.hi == 0 && fc->ongoeui.lo == 0) 1519 goto nextnode; 1520 fc->ongoaddr = CSRROMOFF; 1521 } 1522 }else{ 1523 fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4] = ntohl(rfp->mode.rresq.data); 1524 if(fc->ongoaddr > fc->ongodev->rommax){ 1525 fc->ongodev->rommax = fc->ongoaddr; 1526 } 1527 csrd = SLIST_FIRST(&fc->ongocsr); 1528 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1529 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1530 offset = CSRROMOFF; 1531 }else{ 1532 chdr = (struct csrhdr *)&fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]; 1533 offset = csrd->off; 1534 } 1535 if(fc->ongoaddr > (CSRROMOFF + 0x14) && fc->ongoaddr != offset){ 1536 csrreg = (struct csrreg *)&fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4]; 1537 if( csrreg->key == 0x81 || csrreg->key == 0xd1){ 1538 csrd = SLIST_FIRST(&fc->csrfree); 1539 if(csrd == NULL){ 1540 goto nextnode; 1541 }else{ 1542 csrd->ongoaddr = fc->ongoaddr; 1543 fc->ongoaddr += csrreg->val * 4; 1544 csrd->off = fc->ongoaddr; 1545 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1546 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1547 goto nextaddr; 1548 } 1549 } 1550 } 1551 fc->ongoaddr += 4; 1552 if(((fc->ongoaddr - offset)/4 > chdr->crc_len) && 1553 (fc->ongodev->rommax < 0x414)){ 1554 if(fc->ongodev->rommax <= 0x414){ 1555 csrd = SLIST_FIRST(&fc->csrfree); 1556 if(csrd == NULL) goto nextnode; 1557 csrd->off = fc->ongoaddr; 1558 csrd->ongoaddr = fc->ongoaddr; 1559 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1560 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1561 } 1562 goto nextaddr; 1563 } 1564 1565 while(((fc->ongoaddr - offset)/4 > chdr->crc_len)){ 1566 if(csrd == NULL){ 1567 goto nextnode; 1568 }; 1569 fc->ongoaddr = csrd->ongoaddr + 4; 1570 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1571 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1572 csrd = SLIST_FIRST(&fc->ongocsr); 1573 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1574 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1575 offset = CSRROMOFF; 1576 }else{ 1577 chdr = (struct csrhdr *)&(fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]); 1578 offset = csrd->off; 1579 } 1580 } 1581 if((fc->ongoaddr - CSRROMOFF) > CSRROMSIZE){ 1582 goto nextnode; 1583 } 1584 } 1585 nextaddr: 1586 fw_xfer_free( xfer); 1587 fw_bus_explore(fc); 1588 return; 1589 nextnode: 1590 fw_xfer_free( xfer); 1591 fc->ongonode++; 1592 /* housekeeping work space */ 1593 fc->ongoaddr = CSRROMOFF; 1594 fc->ongodev = NULL; 1595 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1596 while((csrd = SLIST_FIRST(&fc->ongocsr)) != NULL){ 1597 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1598 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1599 } 1600 fw_bus_explore(fc); 1601 return; 1602 } 1603 1604 /* 1605 * To obtain CSR register values. 1606 */ 1607 u_int32_t 1608 getcsrdata(struct fw_device *fwdev, u_int8_t key) 1609 { 1610 int i; 1611 struct csrhdr *chdr; 1612 struct csrreg *creg; 1613 chdr = (struct csrhdr *)&fwdev->csrrom[0]; 1614 for( i = chdr->info_len + 4; i <= fwdev->rommax - CSRROMOFF; i+=4){ 1615 creg = (struct csrreg *)&fwdev->csrrom[i/4]; 1616 if(creg->key == key){ 1617 return (u_int32_t)creg->val; 1618 } 1619 } 1620 return 0; 1621 } 1622 1623 /* 1624 * To attach sub-devices layer onto IEEE1394 bus. 1625 */ 1626 static void 1627 fw_attach_dev(struct firewire_comm *fc) 1628 { 1629 struct fw_device *fwdev; 1630 struct fw_xfer *xfer; 1631 int i, err; 1632 device_t *devlistp; 1633 int devcnt; 1634 struct firewire_dev_comm *fdc; 1635 u_int32_t spec, ver; 1636 1637 for(fwdev = TAILQ_FIRST(&fc->devices); fwdev != NULL; 1638 fwdev = TAILQ_NEXT(fwdev, link)){ 1639 if(fwdev->status == FWDEVINIT){ 1640 spec = getcsrdata(fwdev, CSRKEY_SPEC); 1641 if(spec == 0) 1642 continue; 1643 ver = getcsrdata(fwdev, CSRKEY_VER); 1644 if(ver == 0) 1645 continue; 1646 fwdev->maxrec = (fwdev->csrrom[2] >> 12) & 0xf; 1647 1648 device_printf(fc->bdev, "Device "); 1649 switch(spec){ 1650 case CSRVAL_ANSIT10: 1651 switch(ver){ 1652 case CSRVAL_T10SBP2: 1653 printf("SBP-II"); 1654 break; 1655 default: 1656 break; 1657 } 1658 break; 1659 case CSRVAL_1394TA: 1660 switch(ver){ 1661 case CSR_PROTAVC: 1662 printf("AV/C"); 1663 break; 1664 case CSR_PROTCAL: 1665 printf("CAL"); 1666 break; 1667 case CSR_PROTEHS: 1668 printf("EHS"); 1669 break; 1670 case CSR_PROTHAVI: 1671 printf("HAVi"); 1672 break; 1673 case CSR_PROTCAM104: 1674 printf("1394 Cam 1.04"); 1675 break; 1676 case CSR_PROTCAM120: 1677 printf("1394 Cam 1.20"); 1678 break; 1679 case CSR_PROTCAM130: 1680 printf("1394 Cam 1.30"); 1681 break; 1682 case CSR_PROTDPP: 1683 printf("1394 Direct print"); 1684 break; 1685 case CSR_PROTIICP: 1686 printf("Industrial & Instrument"); 1687 break; 1688 default: 1689 printf("unknown 1394TA"); 1690 break; 1691 } 1692 break; 1693 default: 1694 printf("unknown spec"); 1695 break; 1696 } 1697 fwdev->status = FWDEVATTACHED; 1698 printf("\n"); 1699 } 1700 } 1701 err = device_get_children(fc->bdev, &devlistp, &devcnt); 1702 if( err != 0 ) 1703 return; 1704 for( i = 0 ; i < devcnt ; i++){ 1705 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 1706 fdc = device_get_softc(devlistp[i]); 1707 if (fdc->post_explore != NULL) 1708 fdc->post_explore(fdc); 1709 } 1710 } 1711 free(devlistp, M_TEMP); 1712 1713 /* call pending handlers */ 1714 i = 0; 1715 while ((xfer = STAILQ_FIRST(&fc->pending))) { 1716 STAILQ_REMOVE_HEAD(&fc->pending, link); 1717 i++; 1718 if (xfer->act.hand) 1719 xfer->act.hand(xfer); 1720 } 1721 if (i > 0) 1722 printf("fw_attach_dev: %d pending handlers called\n", i); 1723 if (fc->retry_count > 0) { 1724 printf("retry_count = %d\n", fc->retry_count); 1725 fc->retry_probe_handle = timeout((timeout_t *)fc->ibr, 1726 (void *)fc, hz*2); 1727 } 1728 return; 1729 } 1730 1731 /* 1732 * To allocate uniq transaction label. 1733 */ 1734 static int 1735 fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer) 1736 { 1737 u_int i; 1738 struct tlabel *tl, *tmptl; 1739 int s; 1740 static u_int32_t label = 0; 1741 1742 s = splfw(); 1743 for( i = 0 ; i < 0x40 ; i ++){ 1744 label = (label + 1) & 0x3f; 1745 for(tmptl = STAILQ_FIRST(&fc->tlabels[label]); 1746 tmptl != NULL; tmptl = STAILQ_NEXT(tmptl, link)){ 1747 if(tmptl->xfer->dst == xfer->dst) break; 1748 } 1749 if(tmptl == NULL) { 1750 tl = malloc(sizeof(struct tlabel),M_DEVBUF,M_DONTWAIT); 1751 if (tl == NULL) { 1752 splx(s); 1753 return (-1); 1754 } 1755 tl->xfer = xfer; 1756 STAILQ_INSERT_TAIL(&fc->tlabels[label], tl, link); 1757 splx(s); 1758 return(label); 1759 } 1760 } 1761 splx(s); 1762 1763 printf("fw_get_tlabel: no free tlabel\n"); 1764 return(-1); 1765 } 1766 1767 /* 1768 * Generic packet receving process. 1769 */ 1770 void 1771 fw_rcv(struct firewire_comm* fc, caddr_t buf, u_int len, u_int sub, u_int off, u_int spd) 1772 { 1773 struct fw_pkt *fp, *resfp; 1774 struct fw_xfer *xfer; 1775 struct fw_bind *bind; 1776 struct firewire_softc *sc; 1777 int s; 1778 #if 0 1779 { 1780 u_int32_t *qld; 1781 int i; 1782 qld = (u_int32_t *)buf; 1783 printf("spd %d len:%d\n", spd, len); 1784 for( i = 0 ; i <= len && i < 32; i+= 4){ 1785 printf("0x%08x ", ntohl(qld[i/4])); 1786 if((i % 16) == 15) printf("\n"); 1787 } 1788 if((i % 16) != 15) printf("\n"); 1789 } 1790 #endif 1791 fp = (struct fw_pkt *)(buf + off); 1792 switch(fp->mode.common.tcode){ 1793 case FWTCODE_WRES: 1794 case FWTCODE_RRESQ: 1795 case FWTCODE_RRESB: 1796 case FWTCODE_LRES: 1797 xfer = fw_tl2xfer(fc, ntohs(fp->mode.hdr.src), 1798 fp->mode.hdr.tlrt >> 2); 1799 if(xfer == NULL) { 1800 printf("fw_rcv: unknown response " 1801 "tcode=%d src=0x%x tl=%x rt=%d data=0x%x\n", 1802 fp->mode.common.tcode, 1803 ntohs(fp->mode.hdr.src), 1804 fp->mode.hdr.tlrt >> 2, 1805 fp->mode.hdr.tlrt & 3, 1806 fp->mode.rresq.data); 1807 #if 1 1808 printf("try ad-hoc work around!!\n"); 1809 xfer = fw_tl2xfer(fc, ntohs(fp->mode.hdr.src), 1810 (fp->mode.hdr.tlrt >> 2)^3); 1811 if (xfer == NULL) { 1812 printf("no use...\n"); 1813 goto err; 1814 } 1815 #else 1816 goto err; 1817 #endif 1818 } 1819 switch(xfer->act_type){ 1820 case FWACT_XFER: 1821 if((xfer->sub >= 0) && 1822 ((fc->ir[xfer->sub]->flag & FWXFERQ_MODEMASK ) == 0)){ 1823 xfer->resp = EINVAL; 1824 fw_xfer_done(xfer); 1825 goto err; 1826 } 1827 xfer->recv.len = len; 1828 xfer->recv.off = off; 1829 xfer->recv.buf = buf; 1830 xfer->resp = 0; 1831 fw_xfer_done(xfer); 1832 return; 1833 break; 1834 case FWACT_CH: 1835 default: 1836 goto err; 1837 break; 1838 } 1839 break; 1840 case FWTCODE_WREQQ: 1841 case FWTCODE_WREQB: 1842 case FWTCODE_RREQQ: 1843 case FWTCODE_RREQB: 1844 case FWTCODE_LREQ: 1845 bind = fw_bindlookup(fc, ntohs(fp->mode.rreqq.dest_hi), 1846 ntohl(fp->mode.rreqq.dest_lo)); 1847 if(bind == NULL){ 1848 #if __FreeBSD_version >= 500000 1849 printf("Unknown service addr 0x%08x:0x%08x tcode=%x\n", 1850 #else 1851 printf("Unknown service addr 0x%08x:0x%08lx tcode=%x\n", 1852 #endif 1853 ntohs(fp->mode.rreqq.dest_hi), 1854 ntohl(fp->mode.rreqq.dest_lo), 1855 fp->mode.common.tcode); 1856 if (fc->status == FWBUSRESET) { 1857 printf("fw_rcv: cannot response(bus reset)!\n"); 1858 goto err; 1859 } 1860 xfer = fw_xfer_alloc(); 1861 if(xfer == NULL){ 1862 return; 1863 } 1864 xfer->spd = spd; 1865 xfer->send.buf = malloc(16, M_DEVBUF, M_DONTWAIT); 1866 resfp = (struct fw_pkt *)xfer->send.buf; 1867 switch(fp->mode.common.tcode){ 1868 case FWTCODE_WREQQ: 1869 case FWTCODE_WREQB: 1870 resfp->mode.hdr.tcode = FWTCODE_WRES; 1871 xfer->send.len = 12; 1872 break; 1873 case FWTCODE_RREQQ: 1874 resfp->mode.hdr.tcode = FWTCODE_RRESQ; 1875 xfer->send.len = 16; 1876 break; 1877 case FWTCODE_RREQB: 1878 resfp->mode.hdr.tcode = FWTCODE_RRESB; 1879 xfer->send.len = 16; 1880 break; 1881 case FWTCODE_LREQ: 1882 resfp->mode.hdr.tcode = FWTCODE_LRES; 1883 xfer->send.len = 16; 1884 break; 1885 } 1886 resfp->mode.hdr.dst = fp->mode.hdr.src; 1887 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt; 1888 resfp->mode.hdr.pri = fp->mode.hdr.pri; 1889 resfp->mode.rresb.rtcode = 7; 1890 resfp->mode.rresb.extcode = 0; 1891 resfp->mode.rresb.len = 0; 1892 /* 1893 xfer->act.hand = fw_asy_callback; 1894 */ 1895 xfer->act.hand = fw_xfer_free; 1896 if(fw_asyreq(fc, -1, xfer)){ 1897 fw_xfer_free( xfer); 1898 return; 1899 } 1900 goto err; 1901 } 1902 switch(bind->xfer->act_type){ 1903 case FWACT_XFER: 1904 xfer = fw_xfer_alloc(); 1905 if(xfer == NULL) goto err; 1906 xfer->fc = bind->xfer->fc; 1907 xfer->sc = bind->xfer->sc; 1908 xfer->recv.buf = buf; 1909 xfer->recv.len = len; 1910 xfer->recv.off = off; 1911 xfer->spd = spd; 1912 xfer->act.hand = bind->xfer->act.hand; 1913 if (fc->status != FWBUSRESET) 1914 xfer->act.hand(xfer); 1915 else 1916 STAILQ_INSERT_TAIL(&fc->pending, xfer, link); 1917 return; 1918 break; 1919 case FWACT_CH: 1920 if(fc->ir[bind->xfer->sub]->queued >= 1921 fc->ir[bind->xfer->sub]->maxq){ 1922 device_printf(fc->bdev, 1923 "Discard a packet %x %d\n", 1924 bind->xfer->sub, 1925 fc->ir[bind->xfer->sub]->queued); 1926 goto err; 1927 } 1928 xfer = fw_xfer_alloc(); 1929 if(xfer == NULL) goto err; 1930 xfer->recv.buf = buf; 1931 xfer->recv.len = len; 1932 xfer->recv.off = off; 1933 xfer->spd = spd; 1934 s = splfw(); 1935 fc->ir[bind->xfer->sub]->queued++; 1936 STAILQ_INSERT_TAIL(&fc->ir[bind->xfer->sub]->q, xfer, link); 1937 splx(s); 1938 1939 wakeup((caddr_t)fc->ir[bind->xfer->sub]); 1940 1941 return; 1942 break; 1943 default: 1944 goto err; 1945 break; 1946 } 1947 break; 1948 case FWTCODE_STREAM: 1949 { 1950 struct fw_xferq *xferq; 1951 1952 xferq = fc->ir[sub]; 1953 #if 0 1954 printf("stream rcv dma %d len %d off %d spd %d\n", 1955 sub, len, off, spd); 1956 #endif 1957 if(xferq->queued >= xferq->maxq) { 1958 printf("receive queue is full\n"); 1959 goto err; 1960 } 1961 xfer = fw_xfer_alloc(); 1962 if(xfer == NULL) goto err; 1963 xfer->recv.buf = buf; 1964 xfer->recv.len = len; 1965 xfer->recv.off = off; 1966 xfer->spd = spd; 1967 s = splfw(); 1968 xferq->queued++; 1969 STAILQ_INSERT_TAIL(&xferq->q, xfer, link); 1970 splx(s); 1971 sc = device_get_softc(fc->bdev); 1972 #if __FreeBSD_version >= 500000 1973 if (SEL_WAITING(&xferq->rsel)) 1974 #else 1975 if (&xferq->rsel.si_pid != 0) 1976 #endif 1977 selwakeup(&xferq->rsel); 1978 if (xferq->flag & FWXFERQ_WAKEUP) { 1979 xferq->flag &= ~FWXFERQ_WAKEUP; 1980 wakeup((caddr_t)xferq); 1981 } 1982 if (xferq->flag & FWXFERQ_HANDLER) { 1983 xferq->hand(xferq); 1984 } 1985 return; 1986 break; 1987 } 1988 default: 1989 printf("fw_rcv: unknow tcode\n"); 1990 break; 1991 } 1992 err: 1993 free(buf, M_DEVBUF); 1994 } 1995 1996 /* 1997 * Post process for Bus Manager election process. 1998 */ 1999 static void 2000 fw_try_bmr_callback(struct fw_xfer *xfer) 2001 { 2002 struct fw_pkt *sfp,*rfp; 2003 struct firewire_comm *fc; 2004 2005 if(xfer == NULL) return; 2006 fc = xfer->fc; 2007 if(xfer->resp != 0){ 2008 goto error; 2009 } 2010 2011 if(xfer->send.buf == NULL){ 2012 goto error; 2013 } 2014 sfp = (struct fw_pkt *)xfer->send.buf; 2015 2016 if(xfer->recv.buf == NULL){ 2017 goto error; 2018 } 2019 rfp = (struct fw_pkt *)xfer->recv.buf; 2020 CSRARC(fc, BUS_MGR_ID) 2021 = fc->set_bmr(fc, ntohl(rfp->mode.lres.payload[0]) & 0x3f); 2022 device_printf(fc->bdev, "new bus manager %d ", 2023 CSRARC(fc, BUS_MGR_ID)); 2024 if((htonl(rfp->mode.lres.payload[0]) & 0x3f) == fc->nodeid){ 2025 printf("(me)\n"); 2026 /* If I am bus manager, optimize gapcount */ 2027 if(fc->max_hop <= MAX_GAPHOP ){ 2028 fw_phy_config(fc, -1, gap_cnt[fc->max_hop]); 2029 } 2030 }else{ 2031 printf("\n"); 2032 } 2033 error: 2034 fw_xfer_free(xfer); 2035 } 2036 2037 /* 2038 * To candidate Bus Manager election process. 2039 */ 2040 void 2041 fw_try_bmr(void *arg) 2042 { 2043 struct fw_xfer *xfer; 2044 struct firewire_comm *fc = (struct firewire_comm *)arg; 2045 struct fw_pkt *fp; 2046 int err = 0; 2047 2048 xfer = fw_xfer_alloc(); 2049 if(xfer == NULL){ 2050 return; 2051 } 2052 xfer->send.len = 24; 2053 xfer->spd = 0; 2054 xfer->send.buf = malloc(24, M_DEVBUF, M_DONTWAIT); 2055 if(xfer->send.buf == NULL){ 2056 fw_xfer_free( xfer); 2057 return; 2058 } 2059 2060 fc->status = FWBUSMGRELECT; 2061 2062 xfer->send.off = 0; 2063 fp = (struct fw_pkt *)xfer->send.buf; 2064 fp->mode.lreq.dest_hi = htons(0xffff); 2065 fp->mode.lreq.tlrt = 0; 2066 fp->mode.lreq.tcode = FWTCODE_LREQ; 2067 fp->mode.lreq.pri = 0; 2068 fp->mode.lreq.src = 0; 2069 fp->mode.lreq.len = htons(8); 2070 fp->mode.lreq.extcode = htons(FW_LREQ_CMPSWAP); 2071 xfer->dst = FWLOCALBUS | fc->irm; 2072 fp->mode.lreq.dst = htons(xfer->dst); 2073 fp->mode.lreq.dest_lo = htonl(0xf0000000 | BUS_MGR_ID); 2074 fp->mode.lreq.payload[0] = 0x3f; 2075 fp->mode.lreq.payload[1] = fc->nodeid; 2076 xfer->act_type = FWACT_XFER; 2077 xfer->act.hand = fw_try_bmr_callback; 2078 2079 err = fw_asyreq(fc, -1, xfer); 2080 if(err){ 2081 fw_xfer_free( xfer); 2082 return; 2083 } 2084 return; 2085 } 2086 2087 #ifdef FW_VMACCESS 2088 /* 2089 * Software implementation for physical memory block access. 2090 * XXX:Too slow, usef for debug purpose only. 2091 */ 2092 static void 2093 fw_vmaccess(struct fw_xfer *xfer){ 2094 struct fw_pkt *rfp, *sfp = NULL; 2095 u_int32_t *ld = (u_int32_t *)(xfer->recv.buf + xfer->recv.off); 2096 2097 printf("vmaccess spd:%2x len:%03x %d data:%08x %08x %08x %08x\n", 2098 xfer->spd, xfer->recv.len, xfer->recv.off, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 2099 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 2100 if(xfer->resp != 0){ 2101 fw_xfer_free( xfer); 2102 return; 2103 } 2104 if(xfer->recv.buf == NULL){ 2105 fw_xfer_free( xfer); 2106 return; 2107 } 2108 rfp = (struct fw_pkt *)xfer->recv.buf; 2109 switch(rfp->mode.hdr.tcode){ 2110 /* XXX need fix for 64bit arch */ 2111 case FWTCODE_WREQB: 2112 xfer->send.buf = malloc(12, M_DEVBUF, M_NOWAIT); 2113 xfer->send.len = 12; 2114 sfp = (struct fw_pkt *)xfer->send.buf; 2115 bcopy(rfp->mode.wreqb.payload, 2116 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len)); 2117 sfp->mode.wres.tcode = FWTCODE_WRES; 2118 sfp->mode.wres.rtcode = 0; 2119 break; 2120 case FWTCODE_WREQQ: 2121 xfer->send.buf = malloc(12, M_DEVBUF, M_NOWAIT); 2122 xfer->send.len = 12; 2123 sfp->mode.wres.tcode = FWTCODE_WRES; 2124 *((u_int32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data; 2125 sfp->mode.wres.rtcode = 0; 2126 break; 2127 case FWTCODE_RREQB: 2128 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_DEVBUF, M_NOWAIT); 2129 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len); 2130 sfp = (struct fw_pkt *)xfer->send.buf; 2131 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo), 2132 sfp->mode.rresb.payload, (u_int16_t)ntohs(rfp->mode.rreqb.len)); 2133 sfp->mode.rresb.tcode = FWTCODE_RRESB; 2134 sfp->mode.rresb.len = rfp->mode.rreqb.len; 2135 sfp->mode.rresb.rtcode = 0; 2136 sfp->mode.rresb.extcode = 0; 2137 break; 2138 case FWTCODE_RREQQ: 2139 xfer->send.buf = malloc(16, M_DEVBUF, M_NOWAIT); 2140 xfer->send.len = 16; 2141 sfp = (struct fw_pkt *)xfer->send.buf; 2142 sfp->mode.rresq.data = *(u_int32_t *)(ntohl(rfp->mode.rreqq.dest_lo)); 2143 sfp->mode.wres.tcode = FWTCODE_RRESQ; 2144 sfp->mode.rresb.rtcode = 0; 2145 break; 2146 default: 2147 fw_xfer_free( xfer); 2148 return; 2149 } 2150 xfer->send.off = 0; 2151 sfp->mode.hdr.dst = rfp->mode.hdr.src; 2152 xfer->dst = ntohs(rfp->mode.hdr.src); 2153 xfer->act.hand = fw_xfer_free; 2154 xfer->retry_req = fw_asybusy; 2155 2156 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt; 2157 sfp->mode.hdr.pri = 0; 2158 2159 fw_asyreq(xfer->fc, -1, xfer); 2160 /**/ 2161 return; 2162 } 2163 #endif 2164 2165 /* 2166 * CRC16 check-sum for IEEE1394 register blocks. 2167 */ 2168 u_int16_t 2169 fw_crc16(u_int32_t *ptr, u_int32_t len){ 2170 u_int32_t i, sum, crc = 0; 2171 int shift; 2172 len = (len + 3) & ~3; 2173 for(i = 0 ; i < len ; i+= 4){ 2174 for( shift = 28 ; shift >= 0 ; shift -= 4){ 2175 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf; 2176 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum; 2177 } 2178 crc &= 0xffff; 2179 } 2180 return((u_int16_t) crc); 2181 } 2182 2183 DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,0,0); 2184 MODULE_VERSION(firewire, 1); 2185