firewire.c revision 108655
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 108655 2003-01-04 10:21:11Z 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"}; 109u_int maxrec[6]={512,1024,2048,4096,8192,0}; 110 111#define MAX_GAPHOP 16 112u_int gap_cnt[] = {1, 1, 4, 6, 9, 12, 14, 17, 113 20, 23, 25, 28, 31, 33, 36, 39, 42}; 114 115extern struct cdevsw firewire_cdevsw; 116 117static driver_t firewire_driver = { 118 "firewire", 119 firewire_methods, 120 sizeof(struct firewire_softc), 121}; 122 123/* 124 * transmitter buffer update. 125 */ 126int 127fw_tbuf_update(struct firewire_comm *fc, int sub, int flag){ 128 struct fw_bulkxfer *bulkxfer, *bulkxfer2 = NULL; 129 struct fw_dvbuf *dvbuf = NULL; 130 struct fw_xferq *it; 131 int s, err = 0, i, j, chtag; 132 struct fw_pkt *fp; 133 u_int64_t tmpsync, dvsync; 134 135 it = fc->it[sub]; 136 137 s = splfw(); 138 if(it->stdma == NULL){ 139 bulkxfer = STAILQ_FIRST(&it->stvalid); 140 }else if(flag != 0){ 141 bulkxfer = STAILQ_FIRST(&it->stvalid); 142 if(bulkxfer == it->stdma){ 143 STAILQ_REMOVE_HEAD(&it->stvalid, link); 144 it->stdma->flag = 0; 145 STAILQ_INSERT_TAIL(&it->stfree, it->stdma, link); 146 if(!(it->flag & FWXFERQ_DV)) 147 wakeup(it); 148 } 149 bulkxfer = STAILQ_FIRST(&it->stvalid); 150 }else{ 151 bulkxfer = it->stdma; 152 } 153 splx(s); 154 if(bulkxfer != NULL){ 155 s = splfw(); 156 bulkxfer2 = STAILQ_NEXT(bulkxfer, link); 157#if 0 158 if(it->flag & FWXFERQ_DV && bulkxfer2 == NULL){ 159 bulkxfer2 = STAILQ_FIRST(&it->stfree); 160 STAILQ_REMOVE_HEAD(&it->stfree, link); 161 splx(s); 162 bcopy(bulkxfer->buf, bulkxfer2->buf, 163 it->psize * it->btpacket); 164 s = splfw(); 165 STAILQ_INSERT_TAIL(&it->stvalid, bulkxfer2, link); 166 } 167#endif 168 splx(s); 169 } 170 it->stdma = bulkxfer; 171 it->stdma2 = bulkxfer2; 172 173 if(it->flag & FWXFERQ_DV){ 174 chtag = it->flag & 0xff; 175dvloop: 176 if(it->dvdma == NULL){ 177 dvbuf = STAILQ_FIRST(&it->dvvalid); 178 if(dvbuf != NULL){ 179 s = splfw(); 180 STAILQ_REMOVE_HEAD(&it->dvvalid, link); 181 it->dvdma = dvbuf; 182 splx(s); 183 it->queued = 0; 184 } 185 } 186 if(it->dvdma == NULL) 187 return err; 188 189 it->stproc = STAILQ_FIRST(&it->stfree); 190 if(it->stproc != NULL){ 191 s = splfw(); 192 STAILQ_REMOVE_HEAD(&it->stfree, link); 193 splx(s); 194 }else{ 195 return err; 196 } 197/* 198 * Insert least significant 12 bits timestamp value by computation. 199 * Highest significant 4 bits is insert at just before packet sending. 200 */ 201 fp = (struct fw_pkt *)(it->stproc->buf); 202/* XXX: Parameter relies on NTSC type DV video */ 203 tmpsync = (u_int64_t)3072 * 8000 * 100 / 2997; 204 tmpsync *= it->dvsync; 205 dvsync = tmpsync; 206 dvsync %= 0xc00; 207 fp->mode.ld[2] = htonl(0x80000000 | (dvsync % 0xc00)); 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/* XXX: Parameter relies on NTSC type DV video */ 224#if 1 225#define DVDIFF 203 226#define DVFRAC 2997 227#else 228#define DVDIFF 127 229#define DVFRAC 1875 230#endif 231 it->dvdiff += DVDIFF; 232 if(it->dvdiff >= DVFRAC){ 233 it->dvdiff %= DVFRAC; 234 fp = (struct fw_pkt *)(it->stproc->buf + j * it->psize); 235 236 fp->mode.stream.len = htons(0x8); 237 fp->mode.stream.chtag = chtag; 238 fp->mode.stream.tcode = FWTCODE_STREAM; 239 fp->mode.ld[1] = htonl((fc->nodeid << 24) | 240 0x00780000 | it->dvdbc); 241 j++; 242 } 243 } 244 it->stproc->npacket = j; 245 s = splfw(); 246 STAILQ_INSERT_TAIL(&it->stvalid, it->stproc, link); 247 splx(s); 248 if(it->queued >= it->dvpacket){ 249 s = splfw(); 250 STAILQ_INSERT_TAIL(&it->dvfree, it->dvdma, link); 251 it->dvdma = NULL; 252 splx(s); 253 wakeup(it); 254 goto dvloop; 255 } 256 } 257 return err; 258} 259/* 260 * receving buffer update. 261 */ 262int 263fw_rbuf_update(struct firewire_comm *fc, int sub, int flag){ 264 struct fw_bulkxfer *bulkxfer, *bulkxfer2 = NULL; 265 struct fw_xferq *ir; 266 int s, err = 0; 267 268 ir = fc->ir[sub]; 269 s = splfw(); 270 if(ir->stdma != NULL){ 271 if(flag != 0){ 272 STAILQ_INSERT_TAIL(&ir->stvalid, ir->stdma, link); 273 }else{ 274 ir->stdma->flag = 0; 275 STAILQ_INSERT_TAIL(&ir->stfree, ir->stdma, link); 276 } 277 } 278 if(ir->stdma2 != NULL){ 279 bulkxfer = ir->stdma2; 280 bulkxfer2 = STAILQ_FIRST(&ir->stfree); 281 if(bulkxfer2 != NULL){ 282 STAILQ_REMOVE_HEAD(&ir->stfree, link); 283 } 284 }else{ 285 bulkxfer = STAILQ_FIRST(&ir->stfree); 286 if(bulkxfer != NULL){ 287 STAILQ_REMOVE_HEAD(&ir->stfree, link); 288 bulkxfer2 = STAILQ_FIRST(&ir->stfree); 289 if(bulkxfer2 != NULL){ 290 STAILQ_REMOVE_HEAD(&ir->stfree, link); 291 } 292 }else{ 293 bulkxfer = STAILQ_FIRST(&ir->stvalid); 294 STAILQ_REMOVE_HEAD(&ir->stvalid, link); 295 } 296 } 297 splx(s); 298 ir->stdma = bulkxfer; 299 ir->stdma2 = bulkxfer2; 300 return err; 301} 302 303/* 304 * To lookup node id. from EUI64. 305 */ 306struct fw_device * 307fw_noderesolve(struct firewire_comm *fc, struct fw_eui64 eui) 308{ 309 struct fw_device *fwdev; 310 for(fwdev = TAILQ_FIRST(&fc->devices); fwdev != NULL; 311 fwdev = TAILQ_NEXT(fwdev, link)){ 312 if(fwdev->eui.hi == eui.hi && fwdev->eui.lo == eui.lo){ 313 break; 314 } 315 } 316 if(fwdev == NULL) return NULL; 317 if(fwdev->status == FWDEVINVAL) return NULL; 318 return fwdev; 319} 320 321/* 322 * Async. request procedure for userland application. 323 */ 324int 325fw_asyreq(struct firewire_comm *fc, int sub, struct fw_xfer *xfer) 326{ 327 int err = 0; 328 struct fw_xferq *xferq; 329 int tl = 0, len; 330 struct fw_pkt *fp; 331 int tcode; 332 struct tcode_info *info; 333 334 if(xfer == NULL) return EINVAL; 335 if(xfer->send.len > fc->maxrec){ 336 printf("send.len > maxrec\n"); 337 return EINVAL; 338 } 339 if(xfer->act.hand == NULL){ 340 printf("act.hand == NULL\n"); 341 return EINVAL; 342 } 343 fp = (struct fw_pkt *)xfer->send.buf; 344 345 tcode = fp->mode.common.tcode & 0xf; 346 info = &fc->tcode[tcode]; 347 if (info->flag == 0) { 348 printf("invalid tcode=%d\n", tcode); 349 return EINVAL; 350 } 351 if (info->flag & FWTI_REQ) 352 xferq = fc->atq; 353 else 354 xferq = fc->ats; 355 len = info->hdr_len; 356 if (info->flag & FWTI_BLOCK_STR) 357 len += ntohs(fp->mode.stream.len); 358 else if (info->flag & FWTI_BLOCK_ASY) 359 len += ntohs(fp->mode.rresb.len); 360 if( len > xfer->send.len ){ 361 printf("len(%d) > send.len(%d) (tcode=%d)\n", 362 len, xfer->send.len, tcode); 363 return EINVAL; 364 } 365 xfer->send.len = len; 366 367 if(xferq->start == NULL){ 368 printf("xferq->start == NULL\n"); 369 return EINVAL; 370 } 371 if(!(xferq->queued < xferq->maxq)){ 372 device_printf(fc->bdev, "Discard a packet (queued=%d)\n", 373 xferq->queued); 374 return EINVAL; 375 } 376 377 378 if (info->flag & FWTI_TLABEL) { 379 if((tl = fw_get_tlabel(fc, xfer)) == -1 ) 380 return EIO; 381 fp->mode.hdr.tlrt = tl << 2; 382 } 383 384 xfer->tl = tl; 385 xfer->tcode = tcode; 386 xfer->resp = 0; 387 xfer->fc = fc; 388 xfer->q = xferq; 389 xfer->act_type = FWACT_XFER; 390 xfer->retry_req = fw_asybusy; 391 392 fw_asystart(xfer); 393 return err; 394} 395/* 396 * Wakeup blocked process. 397 */ 398void 399fw_asy_callback(struct fw_xfer *xfer){ 400 wakeup(xfer); 401 return; 402} 403/* 404 * Postpone to later retry. 405 */ 406void fw_asybusy(struct fw_xfer *xfer){ 407#if 1 408 printf("fw_asybusy\n"); 409#endif 410#if XFER_TIMEOUT 411 untimeout(fw_xfer_timeout, (void *)xfer, xfer->ch); 412#endif 413/* 414 xfer->ch = timeout((timeout_t *)fw_asystart, (void *)xfer, 20000); 415*/ 416 DELAY(20000); 417 fw_asystart(xfer); 418 return; 419} 420#if XFER_TIMEOUT 421/* 422 * Post timeout for async. request. 423 */ 424void 425fw_xfer_timeout(void *arg) 426{ 427 int s; 428 struct fw_xfer *xfer; 429 430 xfer = (struct fw_xfer *)arg; 431 printf("fw_xfer_timeout status=%d resp=%d\n", xfer->state, xfer->resp); 432 /* XXX set error code */ 433 s = splfw(); 434 xfer->act.hand(xfer); 435 splx(s); 436} 437#endif 438/* 439 * Async. request with given xfer structure. 440 */ 441static void 442fw_asystart(struct fw_xfer *xfer) 443{ 444 struct firewire_comm *fc = xfer->fc; 445 int s; 446 if(xfer->retry++ >= fc->max_asyretry){ 447 xfer->resp = EBUSY; 448 xfer->state = FWXF_BUSY; 449 xfer->act.hand(xfer); 450 return; 451 } 452#if 0 /* XXX allow bus explore packets only after bus rest */ 453 if (fc->status < FWBUSEXPLORE) { 454 xfer->resp = EAGAIN; 455 xfer->state = FWXF_BUSY; 456 if (xfer->act.hand != NULL) 457 xfer->act.hand(xfer); 458 return; 459 } 460#endif 461 s = splfw(); 462 xfer->state = FWXF_INQ; 463 STAILQ_INSERT_TAIL(&xfer->q->q, xfer, link); 464 xfer->q->queued ++; 465 splx(s); 466 /* XXX just queue for mbuf */ 467 if (xfer->mbuf == NULL) 468 xfer->q->start(fc); 469#if XFER_TIMEOUT 470 if (xfer->act.hand != NULL) 471 xfer->ch = timeout(fw_xfer_timeout, (void *)xfer, hz); 472#endif 473 return; 474} 475 476static int 477firewire_match( device_t dev ) 478{ 479 device_set_desc(dev, "IEEE1394(FireWire) bus"); 480 return -140; 481} 482 483/* 484 * The attach routine. 485 */ 486static int 487firewire_attach( device_t dev ) 488{ 489 int i, unitmask, mn; 490 struct firewire_softc *sc = device_get_softc(dev); 491 device_t pa = device_get_parent(dev); 492 struct firewire_comm *fc; 493 dev_t d; 494 495 fc = (struct firewire_comm *)device_get_softc(pa); 496 sc->fc = fc; 497 498 unitmask = UNIT2MIN(device_get_unit(dev)); 499 500 if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA; 501 for ( i = 0 ; i < fc->nisodma ; i++ ){ 502 mn = unitmask | i; 503 /* XXX device name should be improved */ 504 d = make_dev(&firewire_cdevsw, unit2minor(mn), 505 UID_ROOT, GID_OPERATOR, 0660, 506 "fw%x", mn); 507#if __FreeBSD_version >= 500000 508 if (i == 0) 509 sc->dev = d; 510 else 511 dev_depends(sc->dev, d); 512#else 513 sc->dev[i] = d; 514#endif 515 } 516 d = make_dev(&firewire_cdevsw, unit2minor(unitmask | FWMEM_FLAG), 517 UID_ROOT, GID_OPERATOR, 0660, 518 "fwmem%d", device_get_unit(dev)); 519#if __FreeBSD_version >= 500000 520 dev_depends(sc->dev, d); 521#else 522 sc->dev[i] = d; 523#endif 524 sc->fc->timeouthandle = timeout((timeout_t *)sc->fc->timeout, (void *)sc->fc, hz * 10); 525 526 /* Locate our children */ 527 bus_generic_probe(dev); 528 529 /* launch attachement of the added children */ 530 bus_generic_attach(dev); 531 532 /* bus_reset */ 533 fc->ibr(fc); 534 535 return 0; 536} 537 538/* 539 * Attach it as child. 540 */ 541static device_t 542firewire_add_child(device_t dev, int order, const char *name, int unit) 543{ 544 device_t child; 545 struct firewire_softc *sc; 546 547 sc = (struct firewire_softc *)device_get_softc(dev); 548 child = device_add_child(dev, name, unit); 549 if (child) { 550 device_set_ivars(child, sc->fc); 551 device_probe_and_attach(child); 552 } 553 554 return child; 555} 556 557/* 558 * Dettach it. 559 */ 560static int 561firewire_detach( device_t dev ) 562{ 563 struct firewire_softc *sc; 564 565 sc = (struct firewire_softc *)device_get_softc(dev); 566 567#if __FreeBSD_version >= 500000 568 destroy_dev(sc->dev); 569#else 570 { 571 int j; 572 for (j = 0 ; j < sc->fc->nisodma + 1; j++) 573 destroy_dev(sc->dev[j]); 574 } 575#endif 576 /* XXX xfree_free and untimeout on all xfers */ 577 untimeout((timeout_t *)sc->fc->timeout, sc->fc, sc->fc->timeouthandle); 578 free(sc->fc->topology_map, M_DEVBUF); 579 free(sc->fc->speed_map, M_DEVBUF); 580 bus_generic_detach(dev); 581 return(0); 582} 583#if 0 584static int 585firewire_shutdown( device_t dev ) 586{ 587 return 0; 588} 589#endif 590 591/* 592 * Called after bus reset. 593 */ 594void 595fw_busreset(struct firewire_comm *fc) 596{ 597 int i; 598 struct fw_xfer *xfer; 599 600 switch(fc->status){ 601 case FWBUSMGRELECT: 602 untimeout((timeout_t *)fw_try_bmr, (void *)fc, fc->bmrhandle); 603 break; 604 default: 605 break; 606 } 607 fc->status = FWBUSRESET; 608/* XXX: discard all queued packet */ 609 while((xfer = STAILQ_FIRST(&fc->atq->q)) != NULL){ 610 STAILQ_REMOVE_HEAD(&fc->atq->q, link); 611 xfer->resp = EAGAIN; 612 switch(xfer->act_type){ 613 case FWACT_XFER: 614 fw_xfer_done(xfer); 615 break; 616 default: 617 break; 618 } 619 fw_xfer_free( xfer); 620 } 621 while((xfer = STAILQ_FIRST(&fc->ats->q)) != NULL){ 622 STAILQ_REMOVE_HEAD(&fc->ats->q, link); 623 xfer->resp = EAGAIN; 624 switch(xfer->act_type){ 625 case FWACT_XFER: 626 fw_xfer_done(xfer); 627 default: 628 break; 629 } 630 fw_xfer_free( xfer); 631 } 632 for(i = 0; i < fc->nisodma; i++) 633 while((xfer = STAILQ_FIRST(&fc->it[i]->q)) != NULL){ 634 STAILQ_REMOVE_HEAD(&fc->it[i]->q, link); 635 xfer->resp = 0; 636 switch(xfer->act_type){ 637 case FWACT_XFER: 638 fw_xfer_done(xfer); 639 break; 640 default: 641 break; 642 } 643 fw_xfer_free( xfer); 644 } 645 646 CSRARC(fc, STATE_CLEAR) 647 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 648 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 649 CSRARC(fc, NODE_IDS) = 0x3f; 650 651 CSRARC(fc, TOPO_MAP + 8) = 0; 652 fc->irm = -1; 653 654 fc->max_node = -1; 655 656 for(i = 2; i < 0x100/4 - 2 ; i++){ 657 CSRARC(fc, SPED_MAP + i * 4) = 0; 658 } 659 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 660 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 661 CSRARC(fc, RESET_START) = 0; 662 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0; 663 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19; 664 CSRARC(fc, CYCLE_TIME) = 0x0; 665 CSRARC(fc, BUS_TIME) = 0x0; 666 CSRARC(fc, BUS_MGR_ID) = 0x3f; 667 CSRARC(fc, BANDWIDTH_AV) = 4915; 668 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff; 669 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff; 670 CSRARC(fc, IP_CHANNELS) = (1 << 31); 671 672 CSRARC(fc, CONF_ROM) = 0x04 << 24; 673 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */ 674 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 | 675 1 << 28 | 0xff << 16 | 0x09 << 8; 676 CSRARC(fc, CONF_ROM + 0xc) = 0; 677 678/* DV depend CSRs see blue book */ 679 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON; 680 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON; 681 682 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 ); 683 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 684} 685 686/* Call once after reboot */ 687void fw_init(struct firewire_comm *fc) 688{ 689 int i; 690 struct csrdir *csrd; 691#ifdef FW_VMACCESS 692 struct fw_xfer *xfer; 693 struct fw_bind *fwb; 694#endif 695 696 fc->max_asyretry = FW_MAXASYRTY; 697 698 fc->arq->queued = 0; 699 fc->ars->queued = 0; 700 fc->atq->queued = 0; 701 fc->ats->queued = 0; 702 703 fc->arq->psize = FWPMAX_S400; 704 fc->ars->psize = FWPMAX_S400; 705 fc->atq->psize = FWPMAX_S400; 706 fc->ats->psize = FWPMAX_S400; 707 708 709 fc->arq->buf = NULL; 710 fc->ars->buf = NULL; 711 fc->atq->buf = NULL; 712 fc->ats->buf = NULL; 713 714 fc->arq->flag = FWXFERQ_PACKET; 715 fc->ars->flag = FWXFERQ_PACKET; 716 fc->atq->flag = FWXFERQ_PACKET; 717 fc->ats->flag = FWXFERQ_PACKET; 718 719 STAILQ_INIT(&fc->atq->q); 720 STAILQ_INIT(&fc->ats->q); 721 722 for( i = 0 ; i < fc->nisodma ; i ++ ){ 723 fc->it[i]->queued = 0; 724 fc->ir[i]->queued = 0; 725 726 fc->it[i]->start = NULL; 727 fc->ir[i]->start = NULL; 728 729 fc->it[i]->buf = NULL; 730 fc->ir[i]->buf = NULL; 731 732 fc->it[i]->flag = FWXFERQ_STREAM; 733 fc->ir[i]->flag = FWXFERQ_STREAM; 734 735 STAILQ_INIT(&fc->it[i]->q); 736 STAILQ_INIT(&fc->ir[i]->q); 737 738 STAILQ_INIT(&fc->it[i]->binds); 739 STAILQ_INIT(&fc->ir[i]->binds); 740 } 741 742 fc->arq->maxq = FWMAXQUEUE; 743 fc->ars->maxq = FWMAXQUEUE; 744 fc->atq->maxq = FWMAXQUEUE; 745 fc->ats->maxq = FWMAXQUEUE; 746 747 for( i = 0 ; i < fc->nisodma ; i++){ 748 fc->ir[i]->maxq = FWMAXQUEUE; 749 fc->it[i]->maxq = FWMAXQUEUE; 750 } 751/* Initialize csr registers */ 752 fc->topology_map = (struct fw_topology_map *)malloc( 753 sizeof(struct fw_topology_map), 754 M_DEVBUF, M_DONTWAIT | M_ZERO); 755 fc->speed_map = (struct fw_speed_map *)malloc( 756 sizeof(struct fw_speed_map), 757 M_DEVBUF, M_DONTWAIT | M_ZERO); 758 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16; 759 CSRARC(fc, TOPO_MAP + 4) = 1; 760 CSRARC(fc, SPED_MAP) = 0x3f1 << 16; 761 CSRARC(fc, SPED_MAP + 4) = 1; 762 763 TAILQ_INIT(&fc->devices); 764 STAILQ_INIT(&fc->pending); 765 766/* Initialize csr ROM work space */ 767 SLIST_INIT(&fc->ongocsr); 768 SLIST_INIT(&fc->csrfree); 769 for( i = 0 ; i < FWMAXCSRDIR ; i++){ 770 csrd = (struct csrdir *) malloc(sizeof(struct csrdir), M_DEVBUF,M_DONTWAIT); 771 if(csrd == NULL) break; 772 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 773 } 774 775/* Initialize Async handlers */ 776 STAILQ_INIT(&fc->binds); 777 for( i = 0 ; i < 0x40 ; i++){ 778 STAILQ_INIT(&fc->tlabels[i]); 779 } 780 781/* DV depend CSRs see blue book */ 782#if 0 783 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */ 784 CSRARC(fc, oPCR) = 0x8000007a; 785 for(i = 4 ; i < 0x7c/4 ; i+=4){ 786 CSRARC(fc, i + oPCR) = 0x8000007a; 787 } 788 789 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */ 790 CSRARC(fc, iPCR) = 0x803f0000; 791 for(i = 4 ; i < 0x7c/4 ; i+=4){ 792 CSRARC(fc, i + iPCR) = 0x0; 793 } 794#endif 795 796 797#ifdef FW_VMACCESS 798 xfer = fw_xfer_alloc(); 799 if(xfer == NULL) return; 800 801 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_DEVBUF, M_DONTWAIT); 802 if(fwb == NULL){ 803 fw_xfer_free(xfer); 804 } 805 xfer->act.hand = fw_vmaccess; 806 xfer->act_type = FWACT_XFER; 807 xfer->fc = fc; 808 xfer->sc = NULL; 809 810 fwb->start_hi = 0x2; 811 fwb->start_lo = 0; 812 fwb->addrlen = 0xffffffff; 813 fwb->xfer = xfer; 814 fw_bindadd(fc, fwb); 815#endif 816} 817 818/* 819 * To lookup binded process from IEEE1394 address. 820 */ 821struct fw_bind * 822fw_bindlookup(struct firewire_comm *fc, u_int32_t dest_hi, u_int32_t dest_lo) 823{ 824 struct fw_bind *tfw; 825 for(tfw = STAILQ_FIRST(&fc->binds) ; tfw != NULL ; 826 tfw = STAILQ_NEXT(tfw, fclist)){ 827 if(tfw->xfer->act_type != FWACT_NULL && 828 tfw->start_hi == dest_hi && 829 tfw->start_lo <= dest_lo && 830 (tfw->start_lo + tfw->addrlen) > dest_lo){ 831 return(tfw); 832 } 833 } 834 return(NULL); 835} 836 837/* 838 * To bind IEEE1394 address block to process. 839 */ 840int 841fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb) 842{ 843 struct fw_bind *tfw, *tfw2 = NULL; 844 int err = 0; 845 tfw = STAILQ_FIRST(&fc->binds); 846 if(tfw == NULL){ 847 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 848 goto out; 849 } 850 if((tfw->start_hi > fwb->start_hi) || 851 (tfw->start_hi == fwb->start_hi && 852 (tfw->start_lo > (fwb->start_lo + fwb->addrlen)))){ 853 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 854 goto out; 855 } 856 for(; tfw != NULL; tfw = STAILQ_NEXT(tfw, fclist)){ 857 if((tfw->start_hi < fwb->start_hi) || 858 (tfw->start_hi == fwb->start_hi && 859 (tfw->start_lo + tfw->addrlen) < fwb->start_lo)){ 860 tfw2 = STAILQ_NEXT(tfw, fclist); 861 if(tfw2 == NULL) 862 break; 863 if((tfw2->start_hi > fwb->start_hi) || 864 (tfw2->start_hi == fwb->start_hi && 865 tfw2->start_lo > (fwb->start_lo + fwb->addrlen))){ 866 break; 867 }else{ 868 err = EBUSY; 869 goto out; 870 } 871 } 872 } 873 if(tfw != NULL){ 874 STAILQ_INSERT_AFTER(&fc->binds, tfw, fwb, fclist); 875 }else{ 876 STAILQ_INSERT_TAIL(&fc->binds, fwb, fclist); 877 } 878out: 879 if(!err && fwb->xfer->act_type == FWACT_CH){ 880 STAILQ_INSERT_HEAD(&fc->ir[fwb->xfer->sub]->binds, fwb, chlist); 881 } 882 return err; 883} 884 885/* 886 * To free IEEE1394 address block. 887 */ 888int 889fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb) 890{ 891 int s; 892 893 s = splfw(); 894 /* shall we check the existance? */ 895 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist); 896 splx(s); 897 if (fwb->xfer) 898 fw_xfer_free(fwb->xfer); 899 900 return 0; 901} 902 903/* 904 * To free transaction label. 905 */ 906static void 907fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer) 908{ 909 struct tlabel *tl; 910 int s = splfw(); 911 912 for( tl = STAILQ_FIRST(&fc->tlabels[xfer->tl]); tl != NULL; 913 tl = STAILQ_NEXT(tl, link)){ 914 if(tl->xfer == xfer){ 915 STAILQ_REMOVE(&fc->tlabels[xfer->tl], tl, tlabel, link); 916 free(tl, M_DEVBUF); 917 splx(s); 918 return; 919 } 920 } 921 splx(s); 922 return; 923} 924 925/* 926 * To obtain XFER structure by transaction label. 927 */ 928static struct fw_xfer * 929fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel) 930{ 931 struct fw_xfer *xfer; 932 struct tlabel *tl; 933 int s = splfw(); 934 935 for( tl = STAILQ_FIRST(&fc->tlabels[tlabel]); tl != NULL; 936 tl = STAILQ_NEXT(tl, link)){ 937 if(tl->xfer->dst == node){ 938 xfer = tl->xfer; 939 splx(s); 940 return(xfer); 941 } 942 } 943 splx(s); 944 return(NULL); 945} 946 947/* 948 * To allocate IEEE1394 XFER structure. 949 */ 950struct fw_xfer * 951fw_xfer_alloc() 952{ 953 struct fw_xfer *xfer; 954 955 xfer = malloc(sizeof(struct fw_xfer), M_DEVBUF, M_DONTWAIT | M_ZERO); 956 if (xfer == NULL) 957 return xfer; 958 959 xfer->time = time_second; 960 xfer->sub = -1; 961 962 return xfer; 963} 964 965/* 966 * IEEE1394 XFER post process. 967 */ 968void 969fw_xfer_done(struct fw_xfer *xfer) 970{ 971 if (xfer->act.hand == NULL) 972 return; 973 974#if XFER_TIMEOUT 975 untimeout(fw_xfer_timeout, (void *)xfer, xfer->ch); 976#endif 977 978 if (xfer->fc->status != FWBUSRESET) 979 xfer->act.hand(xfer); 980 else { 981 printf("fw_xfer_done: pending\n"); 982 if (xfer->fc != NULL) 983 STAILQ_INSERT_TAIL(&xfer->fc->pending, xfer, link); 984 else 985 panic("fw_xfer_done: why xfer->fc is NULL?"); 986 } 987} 988 989/* 990 * To free IEEE1394 XFER structure. 991 */ 992void 993fw_xfer_free( struct fw_xfer* xfer) 994{ 995 int s; 996 if(xfer == NULL ) return; 997 if(xfer->state == FWXF_INQ){ 998 printf("fw_xfer_free FWXF_INQ\n"); 999 s = splfw(); 1000 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link); 1001 xfer->q->queued --; 1002 splx(s); 1003 } 1004 if(xfer->fc != NULL){ 1005 if(xfer->state == FWXF_START){ 1006#if 0 /* this could happen if we call fwohci_arcv() before fwohci_txd() */ 1007 printf("fw_xfer_free FWXF_START\n"); 1008#endif 1009 s = splfw(); 1010 xfer->q->drain(xfer->fc, xfer); 1011 splx(s); 1012 } 1013 } 1014 if(xfer->send.buf != NULL){ 1015 free(xfer->send.buf, M_DEVBUF); 1016 } 1017 if(xfer->recv.buf != NULL){ 1018 free(xfer->recv.buf, M_DEVBUF); 1019 } 1020 if(xfer->fc != NULL){ 1021 fw_tl_free(xfer->fc, xfer); 1022 } 1023 free(xfer, M_DEVBUF); 1024} 1025 1026/* 1027 * Callback for PHY configuration. 1028 */ 1029static void 1030fw_phy_config_callback(struct fw_xfer *xfer) 1031{ 1032#if 0 1033 printf("phy_config done state=%d resp=%d\n", 1034 xfer->state, xfer->resp); 1035#endif 1036 fw_xfer_free(xfer); 1037 /* XXX need bus reset ?? */ 1038 /* sc->fc->ibr(xfer->fc); LOOP */ 1039} 1040 1041/* 1042 * To configure PHY. 1043 */ 1044static void 1045fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count) 1046{ 1047 struct fw_xfer *xfer; 1048 struct fw_pkt *fp; 1049 1050 fc->status = FWBUSPHYCONF; 1051 1052 DELAY(100000); 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 */ 1082static void 1083fw_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 */ 1099void 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 timeout((timeout_t *)fw_bus_probe, (void *)fc, hz/4); 1220#else 1221 fw_bus_probe(fc); 1222#endif 1223} 1224 1225/* 1226 * To probe devices on the IEEE1394 bus. 1227 */ 1228static void 1229fw_bus_probe(struct firewire_comm *fc) 1230{ 1231 int s; 1232 struct fw_device *fwdev, *next; 1233 1234 s = splfw(); 1235 fc->status = FWBUSEXPLORE; 1236 fc->retry_count = 0; 1237 1238/* 1239 * Invalidate all devices, just after bus reset. Devices 1240 * to be removed has not been seen longer time. 1241 */ 1242 for(fwdev = TAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1243 next = TAILQ_NEXT(fwdev, link); 1244 if(fwdev->status != FWDEVINVAL){ 1245 fwdev->status = FWDEVINVAL; 1246 fwdev->rcnt = 0; 1247 }else if(fwdev->rcnt < FW_MAXDEVRCNT){ 1248 fwdev->rcnt ++; 1249 }else{ 1250 TAILQ_REMOVE(&fc->devices, fwdev, link); 1251 free(fwdev, M_DEVBUF); 1252 } 1253 } 1254 fc->ongonode = 0; 1255 fc->ongoaddr = CSRROMOFF; 1256 fc->ongodev = NULL; 1257 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1258 fw_bus_explore(fc); 1259 splx(s); 1260} 1261 1262/* 1263 * To collect device informations on the IEEE1394 bus. 1264 */ 1265static void 1266fw_bus_explore(struct firewire_comm *fc ) 1267{ 1268 int err = 0; 1269 struct fw_device *fwdev, *tfwdev; 1270 u_int32_t addr; 1271 struct fw_xfer *xfer; 1272 struct fw_pkt *fp; 1273 1274 if(fc->status != FWBUSEXPLORE) 1275 return; 1276 1277loop: 1278 if(fc->ongonode == fc->nodeid) fc->ongonode++; 1279 1280 if(fc->ongonode > fc->max_node) goto done; 1281 if(fc->ongonode >= 0x3f) goto done; 1282 1283 /* check link */ 1284 /* XXX we need to check phy_id first */ 1285 if (!fc->topology_map->self_id[fc->ongonode].p0.link_active) { 1286 printf("fw_bus_explore: node %d link down\n", fc->ongonode); 1287 fc->ongonode++; 1288 goto loop; 1289 } 1290 1291 if(fc->ongoaddr <= CSRROMOFF && 1292 fc->ongoeui.hi == 0xffffffff && 1293 fc->ongoeui.lo == 0xffffffff ){ 1294 fc->ongoaddr = CSRROMOFF; 1295 addr = 0xf0000000 | fc->ongoaddr; 1296 }else if(fc->ongoeui.hi == 0xffffffff ){ 1297 fc->ongoaddr = CSRROMOFF + 0xc; 1298 addr = 0xf0000000 | fc->ongoaddr; 1299 }else if(fc->ongoeui.lo == 0xffffffff ){ 1300 fc->ongoaddr = CSRROMOFF + 0x10; 1301 addr = 0xf0000000 | fc->ongoaddr; 1302 }else if(fc->ongodev == NULL){ 1303 for(fwdev = TAILQ_FIRST(&fc->devices); fwdev != NULL; 1304 fwdev = TAILQ_NEXT(fwdev, link)){ 1305 if(fwdev->eui.hi == fc->ongoeui.hi && fwdev->eui.lo == fc->ongoeui.lo){ 1306 break; 1307 } 1308 } 1309 if(fwdev != NULL){ 1310 fwdev->dst = fc->ongonode; 1311 fwdev->status = FWDEVATTACHED; 1312 fc->ongonode++; 1313 fc->ongoaddr = CSRROMOFF; 1314 fc->ongodev = NULL; 1315 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1316 goto loop; 1317 } 1318 fwdev = malloc(sizeof(struct fw_device), M_DEVBUF, M_DONTWAIT); 1319 if(fwdev == NULL) 1320 return; 1321 fwdev->fc = fc; 1322 fwdev->rommax = 0; 1323 fwdev->dst = fc->ongonode; 1324 fwdev->eui.hi = fc->ongoeui.hi; fwdev->eui.lo = fc->ongoeui.lo; 1325 fwdev->status = FWDEVINIT; 1326#if 0 1327 fwdev->speed = CSRARC(fc, SPED_MAP + 8 + fc->ongonode / 4) 1328 >> ((3 - (fc->ongonode % 4)) * 8); 1329#else 1330 fwdev->speed = fc->speed_map->speed[fc->nodeid][fc->ongonode]; 1331#endif 1332 1333 tfwdev = TAILQ_FIRST(&fc->devices); 1334 while( tfwdev != NULL && 1335 (tfwdev->eui.hi > fwdev->eui.hi) && 1336 ((tfwdev->eui.hi == fwdev->eui.hi) && 1337 tfwdev->eui.lo > fwdev->eui.lo)){ 1338 tfwdev = TAILQ_NEXT( tfwdev, link); 1339 } 1340 if(tfwdev == NULL){ 1341 TAILQ_INSERT_TAIL(&fc->devices, fwdev, link); 1342 }else{ 1343 TAILQ_INSERT_BEFORE(tfwdev, fwdev, link); 1344 } 1345 1346 device_printf(fc->bdev, "New %s device ID:%08x%08x\n", 1347 linkspeed[fwdev->speed], 1348 fc->ongoeui.hi, fc->ongoeui.lo); 1349 1350 fc->ongodev = fwdev; 1351 fc->ongoaddr = CSRROMOFF; 1352 addr = 0xf0000000 | fc->ongoaddr; 1353 }else{ 1354 addr = 0xf0000000 | fc->ongoaddr; 1355 } 1356#if 0 1357 xfer = asyreqq(fc, FWSPD_S100, 0, 0, 1358 ((FWLOCALBUS | fc->ongonode) << 16) | 0xffff , addr, 1359 fw_bus_explore_callback); 1360 if(xfer == NULL) goto done; 1361#else 1362 xfer = fw_xfer_alloc(); 1363 if(xfer == NULL){ 1364 goto done; 1365 } 1366 xfer->send.len = 16; 1367 xfer->spd = 0; 1368 xfer->send.buf = malloc(16, M_DEVBUF, M_DONTWAIT); 1369 if(xfer->send.buf == NULL){ 1370 fw_xfer_free( xfer); 1371 return; 1372 } 1373 1374 xfer->send.off = 0; 1375 fp = (struct fw_pkt *)xfer->send.buf; 1376 fp->mode.rreqq.dest_hi = htons(0xffff); 1377 fp->mode.rreqq.tlrt = 0; 1378 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1379 fp->mode.rreqq.pri = 0; 1380 fp->mode.rreqq.src = 0; 1381 xfer->dst = FWLOCALBUS | fc->ongonode; 1382 fp->mode.rreqq.dst = htons(xfer->dst); 1383 fp->mode.rreqq.dest_lo = htonl(addr); 1384 xfer->act.hand = fw_bus_explore_callback; 1385 1386 err = fw_asyreq(fc, -1, xfer); 1387 if(err){ 1388 fw_xfer_free( xfer); 1389 return; 1390 } 1391#endif 1392 return; 1393done: 1394 /* fw_attach_devs */ 1395 fc->status = FWBUSEXPDONE; 1396 if (firewire_debug) 1397 printf("bus_explore done\n"); 1398 fw_attach_dev(fc); 1399 return; 1400 1401} 1402 1403/* Portable Async. request read quad */ 1404struct fw_xfer * 1405asyreqq(struct firewire_comm *fc, u_int8_t spd, u_int8_t tl, u_int8_t rt, 1406 u_int32_t addr_hi, u_int32_t addr_lo, 1407 void (*hand) __P((struct fw_xfer*))) 1408{ 1409 struct fw_xfer *xfer; 1410 struct fw_pkt *fp; 1411 int err; 1412 1413 xfer = fw_xfer_alloc(); 1414 if(xfer == NULL){ 1415 return NULL; 1416 } 1417 xfer->send.len = 16; 1418 xfer->spd = spd; /* XXX:min(spd, fc->spd) */ 1419 xfer->send.buf = malloc(16, M_DEVBUF, M_DONTWAIT); 1420 if(xfer->send.buf == NULL){ 1421 fw_xfer_free( xfer); 1422 return NULL; 1423 } 1424 1425 xfer->send.off = 0; 1426 fp = (struct fw_pkt *)xfer->send.buf; 1427 fp->mode.rreqq.dest_hi = htons(addr_hi & 0xffff); 1428 if(tl & FWP_TL_VALID){ 1429 fp->mode.rreqq.tlrt = (tl & 0x3f) << 2; 1430 }else{ 1431 fp->mode.rreqq.tlrt = 0; 1432 } 1433 fp->mode.rreqq.tlrt |= rt & 0x3; 1434 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1435 fp->mode.rreqq.pri = 0; 1436 fp->mode.rreqq.src = 0; 1437 xfer->dst = addr_hi >> 16; 1438 fp->mode.rreqq.dst = htons(xfer->dst); 1439 fp->mode.rreqq.dest_lo = htonl(addr_lo); 1440 xfer->act.hand = hand; 1441 1442 err = fw_asyreq(fc, -1, xfer); 1443 if(err){ 1444 fw_xfer_free( xfer); 1445 return NULL; 1446 } 1447 return xfer; 1448} 1449 1450/* 1451 * Callback for the IEEE1394 bus information collection. 1452 */ 1453static void 1454fw_bus_explore_callback(struct fw_xfer *xfer) 1455{ 1456 struct firewire_comm *fc; 1457 struct fw_pkt *sfp,*rfp; 1458 struct csrhdr *chdr; 1459 struct csrdir *csrd; 1460 struct csrreg *csrreg; 1461 u_int32_t offset; 1462 1463 1464 if(xfer == NULL) return; 1465 fc = xfer->fc; 1466 if(xfer->resp != 0){ 1467 printf("resp != 0: node=%d addr=0x%x\n", 1468 fc->ongonode, fc->ongoaddr); 1469 fc->retry_count++; 1470 goto nextnode; 1471 } 1472 1473 if(xfer->send.buf == NULL){ 1474 printf("send.buf == NULL: node=%d addr=0x%x\n", 1475 fc->ongonode, fc->ongoaddr); 1476 printf("send.buf == NULL\n"); 1477 fc->retry_count++; 1478 goto nextnode; 1479 } 1480 sfp = (struct fw_pkt *)xfer->send.buf; 1481 1482 if(xfer->recv.buf == NULL){ 1483 printf("recv.buf == NULL: node=%d addr=0x%x\n", 1484 fc->ongonode, fc->ongoaddr); 1485 fc->retry_count++; 1486 goto nextnode; 1487 } 1488 rfp = (struct fw_pkt *)xfer->recv.buf; 1489#if 0 1490 { 1491 u_int32_t *qld; 1492 int i; 1493 qld = (u_int32_t *)xfer->recv.buf; 1494 printf("len:%d\n", xfer->recv.len); 1495 for( i = 0 ; i <= xfer->recv.len && i < 32; i+= 4){ 1496 printf("0x%08x ", ntohl(rfp->mode.ld[i/4])); 1497 if((i % 16) == 15) printf("\n"); 1498 } 1499 if((i % 16) != 15) printf("\n"); 1500 } 1501#endif 1502 if(fc->ongodev == NULL){ 1503 if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 | CSRROMOFF))){ 1504 rfp->mode.rresq.data = ntohl(rfp->mode.rresq.data); 1505 chdr = (struct csrhdr *)(&rfp->mode.rresq.data); 1506/* If CSR is minimul confinguration, more investgation is not needed. */ 1507 if(chdr->info_len == 1){ 1508 goto nextnode; 1509 }else{ 1510 fc->ongoaddr = CSRROMOFF + 0xc; 1511 } 1512 }else if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 |(CSRROMOFF + 0xc)))){ 1513 fc->ongoeui.hi = ntohl(rfp->mode.rresq.data); 1514 fc->ongoaddr = CSRROMOFF + 0x10; 1515 }else if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 |(CSRROMOFF + 0x10)))){ 1516 fc->ongoeui.lo = ntohl(rfp->mode.rresq.data); 1517 if (fc->ongoeui.hi == 0 && fc->ongoeui.lo == 0) 1518 goto nextnode; 1519 fc->ongoaddr = CSRROMOFF; 1520 } 1521 }else{ 1522 fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4] = ntohl(rfp->mode.rresq.data); 1523 if(fc->ongoaddr > fc->ongodev->rommax){ 1524 fc->ongodev->rommax = fc->ongoaddr; 1525 } 1526 csrd = SLIST_FIRST(&fc->ongocsr); 1527 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1528 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1529 offset = CSRROMOFF; 1530 }else{ 1531 chdr = (struct csrhdr *)&fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]; 1532 offset = csrd->off; 1533 } 1534 if(fc->ongoaddr > (CSRROMOFF + 0x14) && fc->ongoaddr != offset){ 1535 csrreg = (struct csrreg *)&fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4]; 1536 if( csrreg->key == 0x81 || csrreg->key == 0xd1){ 1537 csrd = SLIST_FIRST(&fc->csrfree); 1538 if(csrd == NULL){ 1539 goto nextnode; 1540 }else{ 1541 csrd->ongoaddr = fc->ongoaddr; 1542 fc->ongoaddr += csrreg->val * 4; 1543 csrd->off = fc->ongoaddr; 1544 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1545 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1546 goto nextaddr; 1547 } 1548 } 1549 } 1550 fc->ongoaddr += 4; 1551 if(((fc->ongoaddr - offset)/4 > chdr->crc_len) && 1552 (fc->ongodev->rommax < 0x414)){ 1553 if(fc->ongodev->rommax <= 0x414){ 1554 csrd = SLIST_FIRST(&fc->csrfree); 1555 if(csrd == NULL) goto nextnode; 1556 csrd->off = fc->ongoaddr; 1557 csrd->ongoaddr = fc->ongoaddr; 1558 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1559 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1560 } 1561 goto nextaddr; 1562 } 1563 1564 while(((fc->ongoaddr - offset)/4 > chdr->crc_len)){ 1565 if(csrd == NULL){ 1566 goto nextnode; 1567 }; 1568 fc->ongoaddr = csrd->ongoaddr + 4; 1569 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1570 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1571 csrd = SLIST_FIRST(&fc->ongocsr); 1572 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1573 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1574 offset = CSRROMOFF; 1575 }else{ 1576 chdr = (struct csrhdr *)&(fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]); 1577 offset = csrd->off; 1578 } 1579 } 1580 if((fc->ongoaddr - CSRROMOFF) > CSRROMSIZE){ 1581 goto nextnode; 1582 } 1583 } 1584nextaddr: 1585 fw_xfer_free( xfer); 1586 fw_bus_explore(fc); 1587 return; 1588nextnode: 1589 fw_xfer_free( xfer); 1590 fc->ongonode++; 1591/* housekeeping work space */ 1592 fc->ongoaddr = CSRROMOFF; 1593 fc->ongodev = NULL; 1594 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1595 while((csrd = SLIST_FIRST(&fc->ongocsr)) != NULL){ 1596 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1597 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1598 } 1599 fw_bus_explore(fc); 1600 return; 1601} 1602 1603/* 1604 * To obtain CSR register values. 1605 */ 1606u_int32_t 1607getcsrdata(struct fw_device *fwdev, u_int8_t key) 1608{ 1609 int i; 1610 struct csrhdr *chdr; 1611 struct csrreg *creg; 1612 chdr = (struct csrhdr *)&fwdev->csrrom[0]; 1613 for( i = chdr->info_len + 4; i <= fwdev->rommax - CSRROMOFF; i+=4){ 1614 creg = (struct csrreg *)&fwdev->csrrom[i/4]; 1615 if(creg->key == key){ 1616 return (u_int32_t)creg->val; 1617 } 1618 } 1619 return 0; 1620} 1621 1622/* 1623 * To attach sub-devices layer onto IEEE1394 bus. 1624 */ 1625static void 1626fw_attach_dev(struct firewire_comm *fc) 1627{ 1628 struct fw_device *fwdev; 1629 struct fw_xfer *xfer; 1630 int i, err; 1631 device_t *devlistp; 1632 int devcnt; 1633 struct firewire_dev_comm *fdc; 1634 1635 for(fwdev = TAILQ_FIRST(&fc->devices); fwdev != NULL; 1636 fwdev = TAILQ_NEXT(fwdev, link)){ 1637 if(fwdev->status == FWDEVINIT){ 1638 fwdev->spec = getcsrdata(fwdev, CSRKEY_SPEC); 1639 if(fwdev->spec == 0) 1640 continue; 1641 fwdev->ver = getcsrdata(fwdev, CSRKEY_VER); 1642 if(fwdev->ver == 0) 1643 continue; 1644 fwdev->maxrec = (fwdev->csrrom[2] >> 12) & 0xf; 1645 1646 device_printf(fc->bdev, "Device "); 1647 switch(fwdev->spec){ 1648 case CSRVAL_ANSIT10: 1649 switch(fwdev->ver){ 1650 case CSRVAL_T10SBP2: 1651 printf("SBP-II"); 1652 break; 1653 default: 1654 break; 1655 } 1656 break; 1657 case CSRVAL_1394TA: 1658 switch(fwdev->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