firewire.c revision 109802
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 109802 2003-01-24 13:03:19Z 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, try_bmr=1; 61SYSCTL_INT(_debug, OID_AUTO, firewire_debug, CTLFLAG_RW, &firewire_debug, 0, 62 "FireWire driver debug flag"); 63SYSCTL_NODE(_hw, OID_AUTO, firewire, CTLFLAG_RD, 0, "FireWire Subsystem"); 64SYSCTL_INT(_hw_firewire, OID_AUTO, try_bmr, CTLFLAG_RW, &try_bmr, 0, 65 "Try to be a bus manager"); 66 67#define FW_MAXASYRTY 4 68#define FW_MAXDEVRCNT 4 69 70#define XFER_TIMEOUT 0 71 72devclass_t firewire_devclass; 73 74static int firewire_match __P((device_t)); 75static int firewire_attach __P((device_t)); 76static int firewire_detach __P((device_t)); 77#if 0 78static int firewire_shutdown __P((device_t)); 79#endif 80static device_t firewire_add_child __P((device_t, int, const char *, int)); 81static void fw_try_bmr __P((void *)); 82static void fw_try_bmr_callback __P((struct fw_xfer *)); 83static void fw_asystart __P((struct fw_xfer *)); 84static int fw_get_tlabel __P((struct firewire_comm *, struct fw_xfer *)); 85static void fw_bus_probe __P((struct firewire_comm *)); 86static void fw_bus_explore __P((struct firewire_comm *)); 87static void fw_bus_explore_callback __P((struct fw_xfer *)); 88static void fw_attach_dev __P((struct firewire_comm *)); 89#ifdef FW_VMACCESS 90static void fw_vmaccess __P((struct fw_xfer *)); 91#endif 92struct fw_xfer *asyreqq __P((struct firewire_comm *, u_int8_t, u_int8_t, u_int8_t, 93 u_int32_t, u_int32_t, void (*)__P((struct fw_xfer *)))); 94 95static device_method_t firewire_methods[] = { 96 /* Device interface */ 97 DEVMETHOD(device_probe, firewire_match), 98 DEVMETHOD(device_attach, firewire_attach), 99 DEVMETHOD(device_detach, firewire_detach), 100 DEVMETHOD(device_suspend, bus_generic_suspend), 101 DEVMETHOD(device_resume, bus_generic_resume), 102 DEVMETHOD(device_shutdown, bus_generic_shutdown), 103 104 /* Bus interface */ 105 DEVMETHOD(bus_add_child, firewire_add_child), 106 DEVMETHOD(bus_print_child, bus_generic_print_child), 107 108 { 0, 0 } 109}; 110char linkspeed[7][0x10]={"S100","S200","S400","S800","S1600","S3200","Unknown"}; 111 112#define MAX_GAPHOP 16 113u_int gap_cnt[] = {1, 1, 4, 6, 9, 12, 14, 17, 114 20, 23, 25, 28, 31, 33, 36, 39, 42}; 115 116extern struct cdevsw firewire_cdevsw; 117 118static driver_t firewire_driver = { 119 "firewire", 120 firewire_methods, 121 sizeof(struct firewire_softc), 122}; 123 124/* 125 * transmitter buffer update. 126 */ 127int 128fw_tbuf_update(struct firewire_comm *fc, int sub, int flag){ 129 struct fw_bulkxfer *bulkxfer, *bulkxfer2 = NULL; 130 struct fw_xferq *it; 131 int s, err = 0; 132 133 it = fc->it[sub]; 134 135 s = splfw(); 136 if(it->stdma == NULL){ 137 bulkxfer = STAILQ_FIRST(&it->stvalid); 138 }else if(flag != 0){ 139 bulkxfer = STAILQ_FIRST(&it->stvalid); 140 if(bulkxfer == it->stdma){ 141 STAILQ_REMOVE_HEAD(&it->stvalid, link); 142 it->stdma->flag = 0; 143 STAILQ_INSERT_TAIL(&it->stfree, it->stdma, link); 144#ifdef FWXFERQ_DV 145 if(!(it->flag & FWXFERQ_DV)) 146#endif 147 wakeup(it); 148 } 149 bulkxfer = STAILQ_FIRST(&it->stvalid); 150 }else{ 151 bulkxfer = it->stdma; 152 } 153 if(bulkxfer != NULL){ 154 bulkxfer2 = STAILQ_NEXT(bulkxfer, link); 155#if 0 156 if(it->flag & FWXFERQ_DV && bulkxfer2 == NULL){ 157 bulkxfer2 = STAILQ_FIRST(&it->stfree); 158 STAILQ_REMOVE_HEAD(&it->stfree, link); 159 bcopy(bulkxfer->buf, bulkxfer2->buf, 160 it->psize * it->btpacket); 161 STAILQ_INSERT_TAIL(&it->stvalid, bulkxfer2, link); 162 } 163#endif 164 } 165 it->stdma = bulkxfer; 166 it->stdma2 = bulkxfer2; 167 168#ifdef FWXFERQ_DV 169 if(it->flag & FWXFERQ_DV){ 170 struct fw_dvbuf *dvbuf = NULL; 171 int i, j, chtag; 172 struct fw_pkt *fp; 173 u_int64_t cycle, dvsync; 174 175 chtag = it->flag & 0xff; 176dvloop: 177 if(it->dvdma == NULL){ 178 dvbuf = STAILQ_FIRST(&it->dvvalid); 179 if(dvbuf != NULL){ 180 STAILQ_REMOVE_HEAD(&it->dvvalid, link); 181 it->dvdma = dvbuf; 182 it->queued = 0; 183 } 184 } 185 if(it->dvdma == NULL) 186 goto out; 187 188 it->stproc = STAILQ_FIRST(&it->stfree); 189 if(it->stproc != NULL){ 190 STAILQ_REMOVE_HEAD(&it->stfree, link); 191 }else{ 192 goto out; 193 } 194#if DV_PAL 195#define DVSEC 3 196#define DVFRAC 75 /* PAL: 25 Hz (1875 = 25 * 3) */ 197#define DVDIFF 5 /* 125 = (8000/300 - 25) * 3 */ 198#else 199#define DVSEC 100 200#define DVFRAC 2997 /* NTSC: 29.97 Hz (2997 = 29.97 * 100) */ 201#define DVDIFF 203 /* 203 = (8000/250 - 29.97) * 100 */ 202#endif 203#define CYCLEFRAC 0xc00 204 cycle = (u_int64_t) 8000 * DVSEC * it->dvsync; 205 /* least significant 12 bits */ 206 dvsync = (cycle * CYCLEFRAC / DVFRAC) % CYCLEFRAC; 207 /* most significat 4 bits */ 208 cycle = (cycle / DVFRAC + it->dvoffset) & 0xf; 209 fp = (struct fw_pkt *)(it->dvdma->buf); 210#if 1 211 fp->mode.ld[2] = htonl(0x80000000 | (cycle << 12) | dvsync); 212#else 213 fp->mode.ld[2] = htonl(0x80000000 | dvsync); 214#endif 215 it->dvsync ++; 216 it->dvsync %= 2997; 217 218 for( i = 0, j = 0 ; i < it->dvpacket ; i++){ 219 bcopy(it->dvdma->buf + it->queued * it->psize, 220 it->stproc->buf + j * it->psize, it->psize); 221 fp = (struct fw_pkt *)(it->stproc->buf + j * it->psize); 222 fp->mode.stream.len = htons(488); 223 fp->mode.stream.chtag = chtag; 224 fp->mode.stream.tcode = FWTCODE_STREAM; 225 fp->mode.ld[1] = htonl((fc->nodeid << 24) | 0x00780000 | it->dvdbc); 226 it->dvdbc++; 227 it->dvdbc %= 256; 228 it->queued ++; 229 j++; 230 it->dvdiff += DVDIFF; 231 if(it->dvdiff >= DVFRAC){ 232 it->dvdiff %= DVFRAC; 233 fp = (struct fw_pkt *)(it->stproc->buf + j * it->psize); 234 235 fp->mode.stream.len = htons(0x8); 236 fp->mode.stream.chtag = chtag; 237 fp->mode.stream.tcode = FWTCODE_STREAM; 238 fp->mode.ld[1] = htonl((fc->nodeid << 24) | 239 0x00780000 | it->dvdbc); 240 j++; 241 } 242 } 243 it->stproc->npacket = j; 244 STAILQ_INSERT_TAIL(&it->stvalid, it->stproc, link); 245 if(it->queued >= it->dvpacket){ 246 STAILQ_INSERT_TAIL(&it->dvfree, it->dvdma, link); 247 it->dvdma = NULL; 248 wakeup(it); 249 goto dvloop; 250 } 251 } 252out: 253#endif 254 splx(s); 255 return err; 256} 257/* 258 * receving buffer update. 259 */ 260int 261fw_rbuf_update(struct firewire_comm *fc, int sub, int flag){ 262 struct fw_bulkxfer *bulkxfer, *bulkxfer2 = NULL; 263 struct fw_xferq *ir; 264 int s, err = 0; 265 266 ir = fc->ir[sub]; 267 s = splfw(); 268 if(ir->stdma != NULL){ 269 if(flag != 0){ 270 STAILQ_INSERT_TAIL(&ir->stvalid, ir->stdma, link); 271 }else{ 272 ir->stdma->flag = 0; 273 STAILQ_INSERT_TAIL(&ir->stfree, ir->stdma, link); 274 } 275 } 276 if(ir->stdma2 != NULL){ 277 bulkxfer = ir->stdma2; 278 bulkxfer2 = STAILQ_FIRST(&ir->stfree); 279 if(bulkxfer2 != NULL){ 280 STAILQ_REMOVE_HEAD(&ir->stfree, link); 281 } 282 }else{ 283 bulkxfer = STAILQ_FIRST(&ir->stfree); 284 if(bulkxfer != NULL){ 285 STAILQ_REMOVE_HEAD(&ir->stfree, link); 286 bulkxfer2 = STAILQ_FIRST(&ir->stfree); 287 if(bulkxfer2 != NULL){ 288 STAILQ_REMOVE_HEAD(&ir->stfree, link); 289 } 290 }else{ 291 device_printf(fc->bdev, "no free chunk available\n"); 292 bulkxfer = STAILQ_FIRST(&ir->stvalid); 293 STAILQ_REMOVE_HEAD(&ir->stvalid, link); 294 } 295 } 296 splx(s); 297 ir->stdma = bulkxfer; 298 ir->stdma2 = bulkxfer2; 299 return err; 300} 301 302/* 303 * To lookup node id. from EUI64. 304 */ 305struct fw_device * 306fw_noderesolve(struct firewire_comm *fc, struct fw_eui64 eui) 307{ 308 struct fw_device *fwdev; 309 for(fwdev = TAILQ_FIRST(&fc->devices); fwdev != NULL; 310 fwdev = TAILQ_NEXT(fwdev, link)){ 311 if(fwdev->eui.hi == eui.hi && fwdev->eui.lo == eui.lo){ 312 break; 313 } 314 } 315 if(fwdev == NULL) return NULL; 316 if(fwdev->status == FWDEVINVAL) return NULL; 317 return fwdev; 318} 319 320/* 321 * Async. request procedure for userland application. 322 */ 323int 324fw_asyreq(struct firewire_comm *fc, int sub, struct fw_xfer *xfer) 325{ 326 int err = 0; 327 struct fw_xferq *xferq; 328 int tl = 0, len; 329 struct fw_pkt *fp; 330 int tcode; 331 struct tcode_info *info; 332 333 if(xfer == NULL) return EINVAL; 334 if(xfer->send.len > MAXREC(fc->maxrec)){ 335 printf("send.len > maxrec\n"); 336 return EINVAL; 337 } 338 if(xfer->act.hand == NULL){ 339 printf("act.hand == NULL\n"); 340 return EINVAL; 341 } 342 fp = (struct fw_pkt *)xfer->send.buf; 343 344 tcode = fp->mode.common.tcode & 0xf; 345 info = &fc->tcode[tcode]; 346 if (info->flag == 0) { 347 printf("invalid tcode=%d\n", tcode); 348 return EINVAL; 349 } 350 if (info->flag & FWTI_REQ) 351 xferq = fc->atq; 352 else 353 xferq = fc->ats; 354 len = info->hdr_len; 355 if (info->flag & FWTI_BLOCK_STR) 356 len += ntohs(fp->mode.stream.len); 357 else if (info->flag & FWTI_BLOCK_ASY) 358 len += ntohs(fp->mode.rresb.len); 359 if( len > xfer->send.len ){ 360 printf("len(%d) > send.len(%d) (tcode=%d)\n", 361 len, xfer->send.len, tcode); 362 return EINVAL; 363 } 364 xfer->send.len = len; 365 366 if(xferq->start == NULL){ 367 printf("xferq->start == NULL\n"); 368 return EINVAL; 369 } 370 if(!(xferq->queued < xferq->maxq)){ 371 device_printf(fc->bdev, "Discard a packet (queued=%d)\n", 372 xferq->queued); 373 return EINVAL; 374 } 375 376 377 if (info->flag & FWTI_TLABEL) { 378 if((tl = fw_get_tlabel(fc, xfer)) == -1 ) 379 return EIO; 380 fp->mode.hdr.tlrt = tl << 2; 381 } 382 383 xfer->tl = tl; 384 xfer->tcode = tcode; 385 xfer->resp = 0; 386 xfer->fc = fc; 387 xfer->q = xferq; 388 xfer->act_type = FWACT_XFER; 389 xfer->retry_req = fw_asybusy; 390 391 fw_asystart(xfer); 392 return err; 393} 394/* 395 * Wakeup blocked process. 396 */ 397void 398fw_asy_callback(struct fw_xfer *xfer){ 399 wakeup(xfer); 400 return; 401} 402/* 403 * Postpone to later retry. 404 */ 405void fw_asybusy(struct fw_xfer *xfer){ 406#if 1 407 printf("fw_asybusy\n"); 408#endif 409#if XFER_TIMEOUT 410 untimeout(fw_xfer_timeout, (void *)xfer, xfer->ch); 411#endif 412/* 413 xfer->ch = timeout((timeout_t *)fw_asystart, (void *)xfer, 20000); 414*/ 415 DELAY(20000); 416 fw_asystart(xfer); 417 return; 418} 419#if XFER_TIMEOUT 420/* 421 * Post timeout for async. request. 422 */ 423void 424fw_xfer_timeout(void *arg) 425{ 426 int s; 427 struct fw_xfer *xfer; 428 429 xfer = (struct fw_xfer *)arg; 430 printf("fw_xfer_timeout status=%d resp=%d\n", xfer->state, xfer->resp); 431 /* XXX set error code */ 432 s = splfw(); 433 xfer->act.hand(xfer); 434 splx(s); 435} 436#endif 437/* 438 * Async. request with given xfer structure. 439 */ 440static void 441fw_asystart(struct fw_xfer *xfer) 442{ 443 struct firewire_comm *fc = xfer->fc; 444 int s; 445 if(xfer->retry++ >= fc->max_asyretry){ 446 xfer->resp = EBUSY; 447 xfer->state = FWXF_BUSY; 448 xfer->act.hand(xfer); 449 return; 450 } 451#if 0 /* XXX allow bus explore packets only after bus rest */ 452 if (fc->status < FWBUSEXPLORE) { 453 xfer->resp = EAGAIN; 454 xfer->state = FWXF_BUSY; 455 if (xfer->act.hand != NULL) 456 xfer->act.hand(xfer); 457 return; 458 } 459#endif 460 s = splfw(); 461 xfer->state = FWXF_INQ; 462 STAILQ_INSERT_TAIL(&xfer->q->q, xfer, link); 463 xfer->q->queued ++; 464 splx(s); 465 /* XXX just queue for mbuf */ 466 if (xfer->mbuf == NULL) 467 xfer->q->start(fc); 468#if XFER_TIMEOUT 469 if (xfer->act.hand != NULL) 470 xfer->ch = timeout(fw_xfer_timeout, (void *)xfer, hz); 471#endif 472 return; 473} 474 475static int 476firewire_match( device_t dev ) 477{ 478 device_set_desc(dev, "IEEE1394(FireWire) bus"); 479 return -140; 480} 481 482/* 483 * The attach routine. 484 */ 485static int 486firewire_attach( device_t dev ) 487{ 488 int i, unitmask, mn; 489 struct firewire_softc *sc = device_get_softc(dev); 490 device_t pa = device_get_parent(dev); 491 struct firewire_comm *fc; 492 dev_t d; 493 494 fc = (struct firewire_comm *)device_get_softc(pa); 495 sc->fc = fc; 496 497 unitmask = UNIT2MIN(device_get_unit(dev)); 498 499 if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA; 500 for ( i = 0 ; i < fc->nisodma ; i++ ){ 501 mn = unitmask | i; 502 /* XXX device name should be improved */ 503 d = make_dev(&firewire_cdevsw, unit2minor(mn), 504 UID_ROOT, GID_OPERATOR, 0660, 505 "fw%x", mn); 506#if __FreeBSD_version >= 500000 507 if (i == 0) 508 sc->dev = d; 509 else 510 dev_depends(sc->dev, d); 511#else 512 sc->dev[i] = d; 513#endif 514 } 515 d = make_dev(&firewire_cdevsw, unit2minor(unitmask | FWMEM_FLAG), 516 UID_ROOT, GID_OPERATOR, 0660, 517 "fwmem%d", device_get_unit(dev)); 518#if __FreeBSD_version >= 500000 519 dev_depends(sc->dev, d); 520#else 521 sc->dev[i] = d; 522#endif 523 sc->fc->timeouthandle = timeout((timeout_t *)sc->fc->timeout, (void *)sc->fc, hz * 10); 524 525 callout_init(&sc->fc->busprobe_callout 526#if __FreeBSD_version >= 500000 527 , /* mpsafe? */ 0); 528#else 529 ); 530#endif 531 532 /* Locate our children */ 533 bus_generic_probe(dev); 534 535 /* launch attachement of the added children */ 536 bus_generic_attach(dev); 537 538 /* bus_reset */ 539 fc->ibr(fc); 540 541 return 0; 542} 543 544/* 545 * Attach it as child. 546 */ 547static device_t 548firewire_add_child(device_t dev, int order, const char *name, int unit) 549{ 550 device_t child; 551 struct firewire_softc *sc; 552 553 sc = (struct firewire_softc *)device_get_softc(dev); 554 child = device_add_child(dev, name, unit); 555 if (child) { 556 device_set_ivars(child, sc->fc); 557 device_probe_and_attach(child); 558 } 559 560 return child; 561} 562 563/* 564 * Dettach it. 565 */ 566static int 567firewire_detach( device_t dev ) 568{ 569 struct firewire_softc *sc; 570 571 sc = (struct firewire_softc *)device_get_softc(dev); 572 573#if __FreeBSD_version >= 500000 574 destroy_dev(sc->dev); 575#else 576 { 577 int j; 578 for (j = 0 ; j < sc->fc->nisodma + 1; j++) 579 destroy_dev(sc->dev[j]); 580 } 581#endif 582 /* XXX xfree_free and untimeout on all xfers */ 583 untimeout((timeout_t *)sc->fc->timeout, sc->fc, sc->fc->timeouthandle); 584 free(sc->fc->topology_map, M_DEVBUF); 585 free(sc->fc->speed_map, M_DEVBUF); 586 bus_generic_detach(dev); 587 return(0); 588} 589#if 0 590static int 591firewire_shutdown( device_t dev ) 592{ 593 return 0; 594} 595#endif 596 597/* 598 * Called after bus reset. 599 */ 600void 601fw_busreset(struct firewire_comm *fc) 602{ 603 int i; 604 struct fw_xfer *xfer; 605 606 switch(fc->status){ 607 case FWBUSMGRELECT: 608 untimeout((timeout_t *)fw_try_bmr, (void *)fc, fc->bmrhandle); 609 break; 610 default: 611 break; 612 } 613 fc->status = FWBUSRESET; 614/* XXX: discard all queued packet */ 615 while((xfer = STAILQ_FIRST(&fc->atq->q)) != NULL){ 616 STAILQ_REMOVE_HEAD(&fc->atq->q, link); 617 xfer->resp = EAGAIN; 618 switch(xfer->act_type){ 619 case FWACT_XFER: 620 fw_xfer_done(xfer); 621 break; 622 default: 623 break; 624 } 625 fw_xfer_free( xfer); 626 } 627 while((xfer = STAILQ_FIRST(&fc->ats->q)) != NULL){ 628 STAILQ_REMOVE_HEAD(&fc->ats->q, link); 629 xfer->resp = EAGAIN; 630 switch(xfer->act_type){ 631 case FWACT_XFER: 632 fw_xfer_done(xfer); 633 default: 634 break; 635 } 636 fw_xfer_free( xfer); 637 } 638 for(i = 0; i < fc->nisodma; i++) 639 while((xfer = STAILQ_FIRST(&fc->it[i]->q)) != NULL){ 640 STAILQ_REMOVE_HEAD(&fc->it[i]->q, link); 641 xfer->resp = 0; 642 switch(xfer->act_type){ 643 case FWACT_XFER: 644 fw_xfer_done(xfer); 645 break; 646 default: 647 break; 648 } 649 fw_xfer_free( xfer); 650 } 651 652 CSRARC(fc, STATE_CLEAR) 653 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 654 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 655 CSRARC(fc, NODE_IDS) = 0x3f; 656 657 CSRARC(fc, TOPO_MAP + 8) = 0; 658 fc->irm = -1; 659 660 fc->max_node = -1; 661 662 for(i = 2; i < 0x100/4 - 2 ; i++){ 663 CSRARC(fc, SPED_MAP + i * 4) = 0; 664 } 665 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 666 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 667 CSRARC(fc, RESET_START) = 0; 668 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0; 669 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19; 670 CSRARC(fc, CYCLE_TIME) = 0x0; 671 CSRARC(fc, BUS_TIME) = 0x0; 672 CSRARC(fc, BUS_MGR_ID) = 0x3f; 673 CSRARC(fc, BANDWIDTH_AV) = 4915; 674 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff; 675 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff; 676 CSRARC(fc, IP_CHANNELS) = (1 << 31); 677 678 CSRARC(fc, CONF_ROM) = 0x04 << 24; 679 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */ 680 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 | 681 1 << 28 | 0xff << 16 | 0x09 << 8; 682 CSRARC(fc, CONF_ROM + 0xc) = 0; 683 684/* DV depend CSRs see blue book */ 685 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON; 686 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON; 687 688 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 ); 689 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 690} 691 692/* Call once after reboot */ 693void fw_init(struct firewire_comm *fc) 694{ 695 int i; 696 struct csrdir *csrd; 697#ifdef FW_VMACCESS 698 struct fw_xfer *xfer; 699 struct fw_bind *fwb; 700#endif 701 702 fc->max_asyretry = FW_MAXASYRTY; 703 704 fc->arq->queued = 0; 705 fc->ars->queued = 0; 706 fc->atq->queued = 0; 707 fc->ats->queued = 0; 708 709 fc->arq->psize = PAGE_SIZE; 710 fc->ars->psize = PAGE_SIZE; 711 fc->atq->psize = 0; 712 fc->ats->psize = 0; 713 714 715 fc->arq->buf = NULL; 716 fc->ars->buf = NULL; 717 fc->atq->buf = NULL; 718 fc->ats->buf = NULL; 719 720 fc->arq->flag = FWXFERQ_PACKET; 721 fc->ars->flag = FWXFERQ_PACKET; 722 fc->atq->flag = FWXFERQ_PACKET; 723 fc->ats->flag = FWXFERQ_PACKET; 724 725 STAILQ_INIT(&fc->atq->q); 726 STAILQ_INIT(&fc->ats->q); 727 728 for( i = 0 ; i < fc->nisodma ; i ++ ){ 729 fc->it[i]->queued = 0; 730 fc->ir[i]->queued = 0; 731 732 fc->it[i]->start = NULL; 733 fc->ir[i]->start = NULL; 734 735 fc->it[i]->buf = NULL; 736 fc->ir[i]->buf = NULL; 737 738 fc->it[i]->flag = FWXFERQ_STREAM; 739 fc->ir[i]->flag = FWXFERQ_STREAM; 740 741 STAILQ_INIT(&fc->it[i]->q); 742 STAILQ_INIT(&fc->ir[i]->q); 743 744 STAILQ_INIT(&fc->it[i]->binds); 745 STAILQ_INIT(&fc->ir[i]->binds); 746 } 747 748 fc->arq->maxq = FWMAXQUEUE; 749 fc->ars->maxq = FWMAXQUEUE; 750 fc->atq->maxq = FWMAXQUEUE; 751 fc->ats->maxq = FWMAXQUEUE; 752 753 for( i = 0 ; i < fc->nisodma ; i++){ 754 fc->ir[i]->maxq = FWMAXQUEUE; 755 fc->it[i]->maxq = FWMAXQUEUE; 756 } 757/* Initialize csr registers */ 758 fc->topology_map = (struct fw_topology_map *)malloc( 759 sizeof(struct fw_topology_map), 760 M_DEVBUF, M_NOWAIT | M_ZERO); 761 fc->speed_map = (struct fw_speed_map *)malloc( 762 sizeof(struct fw_speed_map), 763 M_DEVBUF, M_NOWAIT | M_ZERO); 764 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16; 765 CSRARC(fc, TOPO_MAP + 4) = 1; 766 CSRARC(fc, SPED_MAP) = 0x3f1 << 16; 767 CSRARC(fc, SPED_MAP + 4) = 1; 768 769 TAILQ_INIT(&fc->devices); 770 STAILQ_INIT(&fc->pending); 771 772/* Initialize csr ROM work space */ 773 SLIST_INIT(&fc->ongocsr); 774 SLIST_INIT(&fc->csrfree); 775 for( i = 0 ; i < FWMAXCSRDIR ; i++){ 776 csrd = (struct csrdir *) malloc(sizeof(struct csrdir), M_DEVBUF,M_NOWAIT); 777 if(csrd == NULL) break; 778 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 779 } 780 781/* Initialize Async handlers */ 782 STAILQ_INIT(&fc->binds); 783 for( i = 0 ; i < 0x40 ; i++){ 784 STAILQ_INIT(&fc->tlabels[i]); 785 } 786 787/* DV depend CSRs see blue book */ 788#if 0 789 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */ 790 CSRARC(fc, oPCR) = 0x8000007a; 791 for(i = 4 ; i < 0x7c/4 ; i+=4){ 792 CSRARC(fc, i + oPCR) = 0x8000007a; 793 } 794 795 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */ 796 CSRARC(fc, iPCR) = 0x803f0000; 797 for(i = 4 ; i < 0x7c/4 ; i+=4){ 798 CSRARC(fc, i + iPCR) = 0x0; 799 } 800#endif 801 802 803#ifdef FW_VMACCESS 804 xfer = fw_xfer_alloc(); 805 if(xfer == NULL) return; 806 807 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_DEVBUF, M_NOWAIT); 808 if(fwb == NULL){ 809 fw_xfer_free(xfer); 810 } 811 xfer->act.hand = fw_vmaccess; 812 xfer->act_type = FWACT_XFER; 813 xfer->fc = fc; 814 xfer->sc = NULL; 815 816 fwb->start_hi = 0x2; 817 fwb->start_lo = 0; 818 fwb->addrlen = 0xffffffff; 819 fwb->xfer = xfer; 820 fw_bindadd(fc, fwb); 821#endif 822} 823 824/* 825 * To lookup binded process from IEEE1394 address. 826 */ 827struct fw_bind * 828fw_bindlookup(struct firewire_comm *fc, u_int32_t dest_hi, u_int32_t dest_lo) 829{ 830 struct fw_bind *tfw; 831 for(tfw = STAILQ_FIRST(&fc->binds) ; tfw != NULL ; 832 tfw = STAILQ_NEXT(tfw, fclist)){ 833 if(tfw->xfer->act_type != FWACT_NULL && 834 tfw->start_hi == dest_hi && 835 tfw->start_lo <= dest_lo && 836 (tfw->start_lo + tfw->addrlen) > dest_lo){ 837 return(tfw); 838 } 839 } 840 return(NULL); 841} 842 843/* 844 * To bind IEEE1394 address block to process. 845 */ 846int 847fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb) 848{ 849 struct fw_bind *tfw, *tfw2 = NULL; 850 int err = 0; 851 tfw = STAILQ_FIRST(&fc->binds); 852 if(tfw == NULL){ 853 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 854 goto out; 855 } 856 if((tfw->start_hi > fwb->start_hi) || 857 (tfw->start_hi == fwb->start_hi && 858 (tfw->start_lo > (fwb->start_lo + fwb->addrlen)))){ 859 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 860 goto out; 861 } 862 for(; tfw != NULL; tfw = STAILQ_NEXT(tfw, fclist)){ 863 if((tfw->start_hi < fwb->start_hi) || 864 (tfw->start_hi == fwb->start_hi && 865 (tfw->start_lo + tfw->addrlen) < fwb->start_lo)){ 866 tfw2 = STAILQ_NEXT(tfw, fclist); 867 if(tfw2 == NULL) 868 break; 869 if((tfw2->start_hi > fwb->start_hi) || 870 (tfw2->start_hi == fwb->start_hi && 871 tfw2->start_lo > (fwb->start_lo + fwb->addrlen))){ 872 break; 873 }else{ 874 err = EBUSY; 875 goto out; 876 } 877 } 878 } 879 if(tfw != NULL){ 880 STAILQ_INSERT_AFTER(&fc->binds, tfw, fwb, fclist); 881 }else{ 882 STAILQ_INSERT_TAIL(&fc->binds, fwb, fclist); 883 } 884out: 885 if(!err && fwb->xfer->act_type == FWACT_CH){ 886 STAILQ_INSERT_HEAD(&fc->ir[fwb->xfer->sub]->binds, fwb, chlist); 887 } 888 return err; 889} 890 891/* 892 * To free IEEE1394 address block. 893 */ 894int 895fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb) 896{ 897 int s; 898 899 s = splfw(); 900 /* shall we check the existance? */ 901 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist); 902 splx(s); 903 if (fwb->xfer) 904 fw_xfer_free(fwb->xfer); 905 906 return 0; 907} 908 909/* 910 * To free transaction label. 911 */ 912static void 913fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer) 914{ 915 struct tlabel *tl; 916 int s = splfw(); 917 918 for( tl = STAILQ_FIRST(&fc->tlabels[xfer->tl]); tl != NULL; 919 tl = STAILQ_NEXT(tl, link)){ 920 if(tl->xfer == xfer){ 921 STAILQ_REMOVE(&fc->tlabels[xfer->tl], tl, tlabel, link); 922 free(tl, M_DEVBUF); 923 splx(s); 924 return; 925 } 926 } 927 splx(s); 928 return; 929} 930 931/* 932 * To obtain XFER structure by transaction label. 933 */ 934static struct fw_xfer * 935fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel) 936{ 937 struct fw_xfer *xfer; 938 struct tlabel *tl; 939 int s = splfw(); 940 941 for( tl = STAILQ_FIRST(&fc->tlabels[tlabel]); tl != NULL; 942 tl = STAILQ_NEXT(tl, link)){ 943 if(tl->xfer->dst == node){ 944 xfer = tl->xfer; 945 splx(s); 946 return(xfer); 947 } 948 } 949 splx(s); 950 return(NULL); 951} 952 953/* 954 * To allocate IEEE1394 XFER structure. 955 */ 956struct fw_xfer * 957fw_xfer_alloc() 958{ 959 struct fw_xfer *xfer; 960 961 xfer = malloc(sizeof(struct fw_xfer), M_DEVBUF, M_NOWAIT | M_ZERO); 962 if (xfer == NULL) 963 return xfer; 964 965 xfer->time = time_second; 966 xfer->sub = -1; 967 968 return xfer; 969} 970 971/* 972 * IEEE1394 XFER post process. 973 */ 974void 975fw_xfer_done(struct fw_xfer *xfer) 976{ 977 if (xfer->act.hand == NULL) 978 return; 979 980#if XFER_TIMEOUT 981 untimeout(fw_xfer_timeout, (void *)xfer, xfer->ch); 982#endif 983 984 if (xfer->fc->status != FWBUSRESET) 985 xfer->act.hand(xfer); 986 else { 987 printf("fw_xfer_done: pending\n"); 988 if (xfer->fc != NULL) 989 STAILQ_INSERT_TAIL(&xfer->fc->pending, xfer, link); 990 else 991 panic("fw_xfer_done: why xfer->fc is NULL?"); 992 } 993} 994 995/* 996 * To free IEEE1394 XFER structure. 997 */ 998void 999fw_xfer_free( struct fw_xfer* xfer) 1000{ 1001 int s; 1002 if(xfer == NULL ) return; 1003 if(xfer->state == FWXF_INQ){ 1004 printf("fw_xfer_free FWXF_INQ\n"); 1005 s = splfw(); 1006 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link); 1007 xfer->q->queued --; 1008 splx(s); 1009 } 1010 if(xfer->fc != NULL){ 1011 if(xfer->state == FWXF_START){ 1012#if 0 /* this could happen if we call fwohci_arcv() before fwohci_txd() */ 1013 printf("fw_xfer_free FWXF_START\n"); 1014#endif 1015 s = splfw(); 1016 xfer->q->drain(xfer->fc, xfer); 1017 splx(s); 1018 } 1019 } 1020 if(xfer->send.buf != NULL){ 1021 free(xfer->send.buf, M_DEVBUF); 1022 } 1023 if(xfer->recv.buf != NULL){ 1024 free(xfer->recv.buf, M_DEVBUF); 1025 } 1026 if(xfer->fc != NULL){ 1027 fw_tl_free(xfer->fc, xfer); 1028 } 1029 free(xfer, M_DEVBUF); 1030} 1031 1032/* 1033 * Callback for PHY configuration. 1034 */ 1035static void 1036fw_phy_config_callback(struct fw_xfer *xfer) 1037{ 1038#if 0 1039 printf("phy_config done state=%d resp=%d\n", 1040 xfer->state, xfer->resp); 1041#endif 1042 fw_xfer_free(xfer); 1043 /* XXX need bus reset ?? */ 1044 /* sc->fc->ibr(xfer->fc); LOOP */ 1045} 1046 1047/* 1048 * To configure PHY. 1049 */ 1050static void 1051fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count) 1052{ 1053 struct fw_xfer *xfer; 1054 struct fw_pkt *fp; 1055 1056 fc->status = FWBUSPHYCONF; 1057 1058#if 0 1059 DELAY(100000); 1060#endif 1061 xfer = fw_xfer_alloc(); 1062 xfer->send.len = 12; 1063 xfer->send.off = 0; 1064 xfer->fc = fc; 1065 xfer->retry_req = fw_asybusy; 1066 xfer->act.hand = fw_phy_config_callback; 1067 1068 xfer->send.buf = malloc(sizeof(u_int32_t), 1069 M_DEVBUF, M_NOWAIT | M_ZERO); 1070 fp = (struct fw_pkt *)xfer->send.buf; 1071 fp->mode.ld[1] = 0; 1072 if (root_node >= 0) 1073 fp->mode.ld[1] |= htonl((root_node & 0x3f) << 24 | 1 << 23); 1074 if (gap_count >= 0) 1075 fp->mode.ld[1] |= htonl(1 << 22 | (gap_count & 0x3f) << 16); 1076 fp->mode.ld[2] = ~fp->mode.ld[1]; 1077/* XXX Dangerous, how to pass PHY packet to device driver */ 1078 fp->mode.common.tcode |= FWTCODE_PHY; 1079 1080 if (firewire_debug) 1081 printf("send phy_config root_node=%d gap_count=%d\n", 1082 root_node, gap_count); 1083 fw_asyreq(fc, -1, xfer); 1084} 1085 1086#if 0 1087/* 1088 * Dump self ID. 1089 */ 1090static void 1091fw_print_sid(u_int32_t sid) 1092{ 1093 union fw_self_id *s; 1094 s = (union fw_self_id *) &sid; 1095 printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d" 1096 " p0:%d p1:%d p2:%d i:%d m:%d\n", 1097 s->p0.phy_id, s->p0.link_active, s->p0.gap_count, 1098 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender, 1099 s->p0.power_class, s->p0.port0, s->p0.port1, 1100 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets); 1101} 1102#endif 1103 1104/* 1105 * To receive self ID. 1106 */ 1107void fw_sidrcv(struct firewire_comm* fc, caddr_t buf, u_int len, u_int off) 1108{ 1109 u_int32_t *p, *sid = (u_int32_t *)(buf + off); 1110 union fw_self_id *self_id; 1111 u_int i, j, node, c_port = 0, i_branch = 0; 1112 1113 fc->sid_cnt = len /(sizeof(u_int32_t) * 2); 1114 fc->status = FWBUSINIT; 1115 fc->max_node = fc->nodeid & 0x3f; 1116 CSRARC(fc, NODE_IDS) = ((u_int32_t)fc->nodeid) << 16; 1117 fc->status = FWBUSCYMELECT; 1118 fc->topology_map->crc_len = 2; 1119 fc->topology_map->generation ++; 1120 fc->topology_map->self_id_count = 0; 1121 fc->topology_map->node_count = 0; 1122 fc->speed_map->generation ++; 1123 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4; 1124 self_id = &fc->topology_map->self_id[0]; 1125 for(i = 0; i < fc->sid_cnt; i ++){ 1126 if (sid[1] != ~sid[0]) { 1127 printf("fw_sidrcv: invalid self-id packet\n"); 1128 sid += 2; 1129 continue; 1130 } 1131 *self_id = *((union fw_self_id *)sid); 1132 fc->topology_map->crc_len++; 1133 if(self_id->p0.sequel == 0){ 1134 fc->topology_map->node_count ++; 1135 c_port = 0; 1136#if 0 1137 fw_print_sid(sid[0]); 1138#endif 1139 node = self_id->p0.phy_id; 1140 if(fc->max_node < node){ 1141 fc->max_node = self_id->p0.phy_id; 1142 } 1143 /* XXX I'm not sure this is the right speed_map */ 1144 fc->speed_map->speed[node][node] 1145 = self_id->p0.phy_speed; 1146 for (j = 0; j < node; j ++) { 1147 fc->speed_map->speed[j][node] 1148 = fc->speed_map->speed[node][j] 1149 = min(fc->speed_map->speed[j][j], 1150 self_id->p0.phy_speed); 1151 } 1152 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) && 1153 (self_id->p0.link_active && self_id->p0.contender)) { 1154 fc->irm = self_id->p0.phy_id; 1155 } 1156 if(self_id->p0.port0 >= 0x2){ 1157 c_port++; 1158 } 1159 if(self_id->p0.port1 >= 0x2){ 1160 c_port++; 1161 } 1162 if(self_id->p0.port2 >= 0x2){ 1163 c_port++; 1164 } 1165 } 1166 if(c_port > 2){ 1167 i_branch += (c_port - 2); 1168 } 1169 sid += 2; 1170 self_id++; 1171 fc->topology_map->self_id_count ++; 1172 } 1173 device_printf(fc->bdev, "%d nodes", fc->max_node + 1); 1174 /* CRC */ 1175 fc->topology_map->crc = fw_crc16( 1176 (u_int32_t *)&fc->topology_map->generation, 1177 fc->topology_map->crc_len * 4); 1178 fc->speed_map->crc = fw_crc16( 1179 (u_int32_t *)&fc->speed_map->generation, 1180 fc->speed_map->crc_len * 4); 1181 /* byteswap and copy to CSR */ 1182 p = (u_int32_t *)fc->topology_map; 1183 for (i = 0; i <= fc->topology_map->crc_len; i++) 1184 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++); 1185 p = (u_int32_t *)fc->speed_map; 1186 CSRARC(fc, SPED_MAP) = htonl(*p++); 1187 CSRARC(fc, SPED_MAP + 4) = htonl(*p++); 1188 /* don't byte-swap u_int8_t array */ 1189 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4); 1190 1191 fc->max_hop = fc->max_node - i_branch; 1192#if 1 1193 printf(", maxhop <= %d", fc->max_hop); 1194#endif 1195 1196 if(fc->irm == -1 ){ 1197 printf(", Not found IRM capable node"); 1198 }else{ 1199 printf(", cable IRM = %d", fc->irm); 1200 if (fc->irm == fc->nodeid) 1201 printf(" (me)\n"); 1202 else 1203 printf("\n"); 1204 } 1205 1206 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) { 1207 if (fc->irm == ((CSRARC(fc, NODE_IDS) >> 16 ) & 0x3f)) { 1208 fc->status = FWBUSMGRDONE; 1209 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm); 1210 } else { 1211 fc->status = FWBUSMGRELECT; 1212 fc->bmrhandle = timeout((timeout_t *)fw_try_bmr, 1213 (void *)fc, hz / 8); 1214 } 1215 } else { 1216 fc->status = FWBUSMGRDONE; 1217#if 0 1218 device_printf(fc->bdev, "BMR = %x\n", 1219 CSRARC(fc, BUS_MGR_ID)); 1220#endif 1221 } 1222 free(buf, M_DEVBUF); 1223 /* Optimize gap_count, if I am BMGR */ 1224 if(fc->irm == ((CSRARC(fc, NODE_IDS) >> 16 ) & 0x3f)){ 1225 fw_phy_config(fc, -1, gap_cnt[fc->max_hop]); 1226 } 1227 callout_reset(&fc->busprobe_callout, hz/4, 1228 (void *)fw_bus_probe, (void *)fc); 1229} 1230 1231/* 1232 * To probe devices on the IEEE1394 bus. 1233 */ 1234static void 1235fw_bus_probe(struct firewire_comm *fc) 1236{ 1237 int s; 1238 struct fw_device *fwdev, *next; 1239 1240 s = splfw(); 1241 fc->status = FWBUSEXPLORE; 1242 fc->retry_count = 0; 1243 1244/* 1245 * Invalidate all devices, just after bus reset. Devices 1246 * to be removed has not been seen longer time. 1247 */ 1248 for(fwdev = TAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1249 next = TAILQ_NEXT(fwdev, link); 1250 if(fwdev->status != FWDEVINVAL){ 1251 fwdev->status = FWDEVINVAL; 1252 fwdev->rcnt = 0; 1253 }else if(fwdev->rcnt < FW_MAXDEVRCNT){ 1254 fwdev->rcnt ++; 1255 }else{ 1256 TAILQ_REMOVE(&fc->devices, fwdev, link); 1257 free(fwdev, M_DEVBUF); 1258 } 1259 } 1260 fc->ongonode = 0; 1261 fc->ongoaddr = CSRROMOFF; 1262 fc->ongodev = NULL; 1263 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1264 fw_bus_explore(fc); 1265 splx(s); 1266} 1267 1268/* 1269 * To collect device informations on the IEEE1394 bus. 1270 */ 1271static void 1272fw_bus_explore(struct firewire_comm *fc ) 1273{ 1274 int err = 0; 1275 struct fw_device *fwdev, *tfwdev; 1276 u_int32_t addr; 1277 struct fw_xfer *xfer; 1278 struct fw_pkt *fp; 1279 1280 if(fc->status != FWBUSEXPLORE) 1281 return; 1282 1283loop: 1284 if(fc->ongonode == fc->nodeid) fc->ongonode++; 1285 1286 if(fc->ongonode > fc->max_node) goto done; 1287 if(fc->ongonode >= 0x3f) goto done; 1288 1289 /* check link */ 1290 /* XXX we need to check phy_id first */ 1291 if (!fc->topology_map->self_id[fc->ongonode].p0.link_active) { 1292 printf("fw_bus_explore: node %d link down\n", fc->ongonode); 1293 fc->ongonode++; 1294 goto loop; 1295 } 1296 1297 if(fc->ongoaddr <= CSRROMOFF && 1298 fc->ongoeui.hi == 0xffffffff && 1299 fc->ongoeui.lo == 0xffffffff ){ 1300 fc->ongoaddr = CSRROMOFF; 1301 addr = 0xf0000000 | fc->ongoaddr; 1302 }else if(fc->ongoeui.hi == 0xffffffff ){ 1303 fc->ongoaddr = CSRROMOFF + 0xc; 1304 addr = 0xf0000000 | fc->ongoaddr; 1305 }else if(fc->ongoeui.lo == 0xffffffff ){ 1306 fc->ongoaddr = CSRROMOFF + 0x10; 1307 addr = 0xf0000000 | fc->ongoaddr; 1308 }else if(fc->ongodev == NULL){ 1309 for(fwdev = TAILQ_FIRST(&fc->devices); fwdev != NULL; 1310 fwdev = TAILQ_NEXT(fwdev, link)){ 1311 if(fwdev->eui.hi == fc->ongoeui.hi && fwdev->eui.lo == fc->ongoeui.lo){ 1312 break; 1313 } 1314 } 1315 if(fwdev != NULL){ 1316 fwdev->dst = fc->ongonode; 1317 fwdev->status = FWDEVATTACHED; 1318 fc->ongonode++; 1319 fc->ongoaddr = CSRROMOFF; 1320 fc->ongodev = NULL; 1321 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1322 goto loop; 1323 } 1324 fwdev = malloc(sizeof(struct fw_device), M_DEVBUF, M_NOWAIT); 1325 if(fwdev == NULL) 1326 return; 1327 fwdev->fc = fc; 1328 fwdev->rommax = 0; 1329 fwdev->dst = fc->ongonode; 1330 fwdev->eui.hi = fc->ongoeui.hi; fwdev->eui.lo = fc->ongoeui.lo; 1331 fwdev->status = FWDEVINIT; 1332#if 0 1333 fwdev->speed = CSRARC(fc, SPED_MAP + 8 + fc->ongonode / 4) 1334 >> ((3 - (fc->ongonode % 4)) * 8); 1335#else 1336 fwdev->speed = fc->speed_map->speed[fc->nodeid][fc->ongonode]; 1337#endif 1338 1339 tfwdev = TAILQ_FIRST(&fc->devices); 1340 while( tfwdev != NULL && 1341 (tfwdev->eui.hi > fwdev->eui.hi) && 1342 ((tfwdev->eui.hi == fwdev->eui.hi) && 1343 tfwdev->eui.lo > fwdev->eui.lo)){ 1344 tfwdev = TAILQ_NEXT( tfwdev, link); 1345 } 1346 if(tfwdev == NULL){ 1347 TAILQ_INSERT_TAIL(&fc->devices, fwdev, link); 1348 }else{ 1349 TAILQ_INSERT_BEFORE(tfwdev, fwdev, link); 1350 } 1351 1352 device_printf(fc->bdev, "New %s device ID:%08x%08x\n", 1353 linkspeed[fwdev->speed], 1354 fc->ongoeui.hi, fc->ongoeui.lo); 1355 1356 fc->ongodev = fwdev; 1357 fc->ongoaddr = CSRROMOFF; 1358 addr = 0xf0000000 | fc->ongoaddr; 1359 }else{ 1360 addr = 0xf0000000 | fc->ongoaddr; 1361 } 1362#if 0 1363 xfer = asyreqq(fc, FWSPD_S100, 0, 0, 1364 ((FWLOCALBUS | fc->ongonode) << 16) | 0xffff , addr, 1365 fw_bus_explore_callback); 1366 if(xfer == NULL) goto done; 1367#else 1368 xfer = fw_xfer_alloc(); 1369 if(xfer == NULL){ 1370 goto done; 1371 } 1372 xfer->send.len = 16; 1373 xfer->spd = 0; 1374 xfer->send.buf = malloc(16, M_DEVBUF, M_NOWAIT); 1375 if(xfer->send.buf == NULL){ 1376 fw_xfer_free( xfer); 1377 return; 1378 } 1379 1380 xfer->send.off = 0; 1381 fp = (struct fw_pkt *)xfer->send.buf; 1382 fp->mode.rreqq.dest_hi = htons(0xffff); 1383 fp->mode.rreqq.tlrt = 0; 1384 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1385 fp->mode.rreqq.pri = 0; 1386 fp->mode.rreqq.src = 0; 1387 xfer->dst = FWLOCALBUS | fc->ongonode; 1388 fp->mode.rreqq.dst = htons(xfer->dst); 1389 fp->mode.rreqq.dest_lo = htonl(addr); 1390 xfer->act.hand = fw_bus_explore_callback; 1391 1392 err = fw_asyreq(fc, -1, xfer); 1393 if(err){ 1394 fw_xfer_free( xfer); 1395 return; 1396 } 1397#endif 1398 return; 1399done: 1400 /* fw_attach_devs */ 1401 fc->status = FWBUSEXPDONE; 1402 if (firewire_debug) 1403 printf("bus_explore done\n"); 1404 fw_attach_dev(fc); 1405 return; 1406 1407} 1408 1409/* Portable Async. request read quad */ 1410struct fw_xfer * 1411asyreqq(struct firewire_comm *fc, u_int8_t spd, u_int8_t tl, u_int8_t rt, 1412 u_int32_t addr_hi, u_int32_t addr_lo, 1413 void (*hand) __P((struct fw_xfer*))) 1414{ 1415 struct fw_xfer *xfer; 1416 struct fw_pkt *fp; 1417 int err; 1418 1419 xfer = fw_xfer_alloc(); 1420 if(xfer == NULL){ 1421 return NULL; 1422 } 1423 xfer->send.len = 16; 1424 xfer->spd = spd; /* XXX:min(spd, fc->spd) */ 1425 xfer->send.buf = malloc(16, M_DEVBUF, M_NOWAIT); 1426 if(xfer->send.buf == NULL){ 1427 fw_xfer_free( xfer); 1428 return NULL; 1429 } 1430 1431 xfer->send.off = 0; 1432 fp = (struct fw_pkt *)xfer->send.buf; 1433 fp->mode.rreqq.dest_hi = htons(addr_hi & 0xffff); 1434 if(tl & FWP_TL_VALID){ 1435 fp->mode.rreqq.tlrt = (tl & 0x3f) << 2; 1436 }else{ 1437 fp->mode.rreqq.tlrt = 0; 1438 } 1439 fp->mode.rreqq.tlrt |= rt & 0x3; 1440 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1441 fp->mode.rreqq.pri = 0; 1442 fp->mode.rreqq.src = 0; 1443 xfer->dst = addr_hi >> 16; 1444 fp->mode.rreqq.dst = htons(xfer->dst); 1445 fp->mode.rreqq.dest_lo = htonl(addr_lo); 1446 xfer->act.hand = hand; 1447 1448 err = fw_asyreq(fc, -1, xfer); 1449 if(err){ 1450 fw_xfer_free( xfer); 1451 return NULL; 1452 } 1453 return xfer; 1454} 1455 1456/* 1457 * Callback for the IEEE1394 bus information collection. 1458 */ 1459static void 1460fw_bus_explore_callback(struct fw_xfer *xfer) 1461{ 1462 struct firewire_comm *fc; 1463 struct fw_pkt *sfp,*rfp; 1464 struct csrhdr *chdr; 1465 struct csrdir *csrd; 1466 struct csrreg *csrreg; 1467 u_int32_t offset; 1468 1469 1470 if(xfer == NULL) return; 1471 fc = xfer->fc; 1472 if(xfer->resp != 0){ 1473 printf("resp != 0: node=%d addr=0x%x\n", 1474 fc->ongonode, fc->ongoaddr); 1475 fc->retry_count++; 1476 goto nextnode; 1477 } 1478 1479 if(xfer->send.buf == NULL){ 1480 printf("send.buf == NULL: node=%d addr=0x%x\n", 1481 fc->ongonode, fc->ongoaddr); 1482 printf("send.buf == NULL\n"); 1483 fc->retry_count++; 1484 goto nextnode; 1485 } 1486 sfp = (struct fw_pkt *)xfer->send.buf; 1487 1488 if(xfer->recv.buf == NULL){ 1489 printf("recv.buf == NULL: node=%d addr=0x%x\n", 1490 fc->ongonode, fc->ongoaddr); 1491 fc->retry_count++; 1492 goto nextnode; 1493 } 1494 rfp = (struct fw_pkt *)xfer->recv.buf; 1495#if 0 1496 { 1497 u_int32_t *qld; 1498 int i; 1499 qld = (u_int32_t *)xfer->recv.buf; 1500 printf("len:%d\n", xfer->recv.len); 1501 for( i = 0 ; i <= xfer->recv.len && i < 32; i+= 4){ 1502 printf("0x%08x ", ntohl(rfp->mode.ld[i/4])); 1503 if((i % 16) == 15) printf("\n"); 1504 } 1505 if((i % 16) != 15) printf("\n"); 1506 } 1507#endif 1508 if(fc->ongodev == NULL){ 1509 if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 | CSRROMOFF))){ 1510 rfp->mode.rresq.data = ntohl(rfp->mode.rresq.data); 1511 chdr = (struct csrhdr *)(&rfp->mode.rresq.data); 1512/* If CSR is minimul confinguration, more investgation is not needed. */ 1513 if(chdr->info_len == 1){ 1514 goto nextnode; 1515 }else{ 1516 fc->ongoaddr = CSRROMOFF + 0xc; 1517 } 1518 }else if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 |(CSRROMOFF + 0xc)))){ 1519 fc->ongoeui.hi = ntohl(rfp->mode.rresq.data); 1520 fc->ongoaddr = CSRROMOFF + 0x10; 1521 }else if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 |(CSRROMOFF + 0x10)))){ 1522 fc->ongoeui.lo = ntohl(rfp->mode.rresq.data); 1523 if (fc->ongoeui.hi == 0 && fc->ongoeui.lo == 0) 1524 goto nextnode; 1525 fc->ongoaddr = CSRROMOFF; 1526 } 1527 }else{ 1528 fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4] = ntohl(rfp->mode.rresq.data); 1529 if(fc->ongoaddr > fc->ongodev->rommax){ 1530 fc->ongodev->rommax = fc->ongoaddr; 1531 } 1532 csrd = SLIST_FIRST(&fc->ongocsr); 1533 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1534 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1535 offset = CSRROMOFF; 1536 }else{ 1537 chdr = (struct csrhdr *)&fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]; 1538 offset = csrd->off; 1539 } 1540 if(fc->ongoaddr > (CSRROMOFF + 0x14) && fc->ongoaddr != offset){ 1541 csrreg = (struct csrreg *)&fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4]; 1542 if( csrreg->key == 0x81 || csrreg->key == 0xd1){ 1543 csrd = SLIST_FIRST(&fc->csrfree); 1544 if(csrd == NULL){ 1545 goto nextnode; 1546 }else{ 1547 csrd->ongoaddr = fc->ongoaddr; 1548 fc->ongoaddr += csrreg->val * 4; 1549 csrd->off = fc->ongoaddr; 1550 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1551 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1552 goto nextaddr; 1553 } 1554 } 1555 } 1556 fc->ongoaddr += 4; 1557 if(((fc->ongoaddr - offset)/4 > chdr->crc_len) && 1558 (fc->ongodev->rommax < 0x414)){ 1559 if(fc->ongodev->rommax <= 0x414){ 1560 csrd = SLIST_FIRST(&fc->csrfree); 1561 if(csrd == NULL) goto nextnode; 1562 csrd->off = fc->ongoaddr; 1563 csrd->ongoaddr = fc->ongoaddr; 1564 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1565 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1566 } 1567 goto nextaddr; 1568 } 1569 1570 while(((fc->ongoaddr - offset)/4 > chdr->crc_len)){ 1571 if(csrd == NULL){ 1572 goto nextnode; 1573 }; 1574 fc->ongoaddr = csrd->ongoaddr + 4; 1575 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1576 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1577 csrd = SLIST_FIRST(&fc->ongocsr); 1578 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1579 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1580 offset = CSRROMOFF; 1581 }else{ 1582 chdr = (struct csrhdr *)&(fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]); 1583 offset = csrd->off; 1584 } 1585 } 1586 if((fc->ongoaddr - CSRROMOFF) > CSRROMSIZE){ 1587 goto nextnode; 1588 } 1589 } 1590nextaddr: 1591 fw_xfer_free( xfer); 1592 fw_bus_explore(fc); 1593 return; 1594nextnode: 1595 fw_xfer_free( xfer); 1596 fc->ongonode++; 1597/* housekeeping work space */ 1598 fc->ongoaddr = CSRROMOFF; 1599 fc->ongodev = NULL; 1600 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1601 while((csrd = SLIST_FIRST(&fc->ongocsr)) != NULL){ 1602 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1603 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1604 } 1605 fw_bus_explore(fc); 1606 return; 1607} 1608 1609/* 1610 * To obtain CSR register values. 1611 */ 1612u_int32_t 1613getcsrdata(struct fw_device *fwdev, u_int8_t key) 1614{ 1615 int i; 1616 struct csrhdr *chdr; 1617 struct csrreg *creg; 1618 chdr = (struct csrhdr *)&fwdev->csrrom[0]; 1619 for( i = chdr->info_len + 4; i <= fwdev->rommax - CSRROMOFF; i+=4){ 1620 creg = (struct csrreg *)&fwdev->csrrom[i/4]; 1621 if(creg->key == key){ 1622 return (u_int32_t)creg->val; 1623 } 1624 } 1625 return 0; 1626} 1627 1628/* 1629 * To attach sub-devices layer onto IEEE1394 bus. 1630 */ 1631static void 1632fw_attach_dev(struct firewire_comm *fc) 1633{ 1634 struct fw_device *fwdev; 1635 struct fw_xfer *xfer; 1636 int i, err; 1637 device_t *devlistp; 1638 int devcnt; 1639 struct firewire_dev_comm *fdc; 1640 u_int32_t spec, ver; 1641 1642 for(fwdev = TAILQ_FIRST(&fc->devices); fwdev != NULL; 1643 fwdev = TAILQ_NEXT(fwdev, link)){ 1644 if(fwdev->status == FWDEVINIT){ 1645 spec = getcsrdata(fwdev, CSRKEY_SPEC); 1646 if(spec == 0) 1647 continue; 1648 ver = getcsrdata(fwdev, CSRKEY_VER); 1649 if(ver == 0) 1650 continue; 1651 fwdev->maxrec = (fwdev->csrrom[2] >> 12) & 0xf; 1652 1653 device_printf(fc->bdev, "Device "); 1654 switch(spec){ 1655 case CSRVAL_ANSIT10: 1656 switch(ver){ 1657 case CSRVAL_T10SBP2: 1658 printf("SBP-II"); 1659 break; 1660 default: 1661 break; 1662 } 1663 break; 1664 case CSRVAL_1394TA: 1665 switch(ver){ 1666 case CSR_PROTAVC: 1667 printf("AV/C"); 1668 break; 1669 case CSR_PROTCAL: 1670 printf("CAL"); 1671 break; 1672 case CSR_PROTEHS: 1673 printf("EHS"); 1674 break; 1675 case CSR_PROTHAVI: 1676 printf("HAVi"); 1677 break; 1678 case CSR_PROTCAM104: 1679 printf("1394 Cam 1.04"); 1680 break; 1681 case CSR_PROTCAM120: 1682 printf("1394 Cam 1.20"); 1683 break; 1684 case CSR_PROTCAM130: 1685 printf("1394 Cam 1.30"); 1686 break; 1687 case CSR_PROTDPP: 1688 printf("1394 Direct print"); 1689 break; 1690 case CSR_PROTIICP: 1691 printf("Industrial & Instrument"); 1692 break; 1693 default: 1694 printf("unknown 1394TA"); 1695 break; 1696 } 1697 break; 1698 default: 1699 printf("unknown spec"); 1700 break; 1701 } 1702 fwdev->status = FWDEVATTACHED; 1703 printf("\n"); 1704 } 1705 } 1706 err = device_get_children(fc->bdev, &devlistp, &devcnt); 1707 if( err != 0 ) 1708 return; 1709 for( i = 0 ; i < devcnt ; i++){ 1710 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 1711 fdc = device_get_softc(devlistp[i]); 1712 if (fdc->post_explore != NULL) 1713 fdc->post_explore(fdc); 1714 } 1715 } 1716 free(devlistp, M_TEMP); 1717 1718 /* call pending handlers */ 1719 i = 0; 1720 while ((xfer = STAILQ_FIRST(&fc->pending))) { 1721 STAILQ_REMOVE_HEAD(&fc->pending, link); 1722 i++; 1723 if (xfer->act.hand) 1724 xfer->act.hand(xfer); 1725 } 1726 if (i > 0) 1727 printf("fw_attach_dev: %d pending handlers called\n", i); 1728 if (fc->retry_count > 0) { 1729 printf("retry_count = %d\n", fc->retry_count); 1730 fc->retry_probe_handle = timeout((timeout_t *)fc->ibr, 1731 (void *)fc, hz*2); 1732 } 1733 return; 1734} 1735 1736/* 1737 * To allocate uniq transaction label. 1738 */ 1739static int 1740fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer) 1741{ 1742 u_int i; 1743 struct tlabel *tl, *tmptl; 1744 int s; 1745 static u_int32_t label = 0; 1746 1747 s = splfw(); 1748 for( i = 0 ; i < 0x40 ; i ++){ 1749 label = (label + 1) & 0x3f; 1750 for(tmptl = STAILQ_FIRST(&fc->tlabels[label]); 1751 tmptl != NULL; tmptl = STAILQ_NEXT(tmptl, link)){ 1752 if(tmptl->xfer->dst == xfer->dst) break; 1753 } 1754 if(tmptl == NULL) { 1755 tl = malloc(sizeof(struct tlabel),M_DEVBUF,M_NOWAIT); 1756 if (tl == NULL) { 1757 splx(s); 1758 return (-1); 1759 } 1760 tl->xfer = xfer; 1761 STAILQ_INSERT_TAIL(&fc->tlabels[label], tl, link); 1762 splx(s); 1763 return(label); 1764 } 1765 } 1766 splx(s); 1767 1768 printf("fw_get_tlabel: no free tlabel\n"); 1769 return(-1); 1770} 1771 1772/* 1773 * Generic packet receving process. 1774 */ 1775void 1776fw_rcv(struct firewire_comm* fc, caddr_t buf, u_int len, u_int sub, u_int off, u_int spd) 1777{ 1778 struct fw_pkt *fp, *resfp; 1779 struct fw_xfer *xfer; 1780 struct fw_bind *bind; 1781 struct firewire_softc *sc; 1782 int s; 1783#if 0 1784 { 1785 u_int32_t *qld; 1786 int i; 1787 qld = (u_int32_t *)buf; 1788 printf("spd %d len:%d\n", spd, len); 1789 for( i = 0 ; i <= len && i < 32; i+= 4){ 1790 printf("0x%08x ", ntohl(qld[i/4])); 1791 if((i % 16) == 15) printf("\n"); 1792 } 1793 if((i % 16) != 15) printf("\n"); 1794 } 1795#endif 1796 fp = (struct fw_pkt *)(buf + off); 1797 switch(fp->mode.common.tcode){ 1798 case FWTCODE_WRES: 1799 case FWTCODE_RRESQ: 1800 case FWTCODE_RRESB: 1801 case FWTCODE_LRES: 1802 xfer = fw_tl2xfer(fc, ntohs(fp->mode.hdr.src), 1803 fp->mode.hdr.tlrt >> 2); 1804 if(xfer == NULL) { 1805 printf("fw_rcv: unknown response " 1806 "tcode=%d src=0x%x tl=%x rt=%d data=0x%x\n", 1807 fp->mode.common.tcode, 1808 ntohs(fp->mode.hdr.src), 1809 fp->mode.hdr.tlrt >> 2, 1810 fp->mode.hdr.tlrt & 3, 1811 fp->mode.rresq.data); 1812#if 1 1813 printf("try ad-hoc work around!!\n"); 1814 xfer = fw_tl2xfer(fc, ntohs(fp->mode.hdr.src), 1815 (fp->mode.hdr.tlrt >> 2)^3); 1816 if (xfer == NULL) { 1817 printf("no use...\n"); 1818 goto err; 1819 } 1820#else 1821 goto err; 1822#endif 1823 } 1824 switch(xfer->act_type){ 1825 case FWACT_XFER: 1826 if((xfer->sub >= 0) && 1827 ((fc->ir[xfer->sub]->flag & FWXFERQ_MODEMASK ) == 0)){ 1828 xfer->resp = EINVAL; 1829 fw_xfer_done(xfer); 1830 goto err; 1831 } 1832 xfer->recv.len = len; 1833 xfer->recv.off = off; 1834 xfer->recv.buf = buf; 1835 xfer->resp = 0; 1836 fw_xfer_done(xfer); 1837 return; 1838 break; 1839 case FWACT_CH: 1840 default: 1841 goto err; 1842 break; 1843 } 1844 break; 1845 case FWTCODE_WREQQ: 1846 case FWTCODE_WREQB: 1847 case FWTCODE_RREQQ: 1848 case FWTCODE_RREQB: 1849 case FWTCODE_LREQ: 1850 bind = fw_bindlookup(fc, ntohs(fp->mode.rreqq.dest_hi), 1851 ntohl(fp->mode.rreqq.dest_lo)); 1852 if(bind == NULL){ 1853#if __FreeBSD_version >= 500000 1854 printf("Unknown service addr 0x%08x:0x%08x tcode=%x\n", 1855#else 1856 printf("Unknown service addr 0x%08x:0x%08lx tcode=%x\n", 1857#endif 1858 ntohs(fp->mode.rreqq.dest_hi), 1859 ntohl(fp->mode.rreqq.dest_lo), 1860 fp->mode.common.tcode); 1861 if (fc->status == FWBUSRESET) { 1862 printf("fw_rcv: cannot response(bus reset)!\n"); 1863 goto err; 1864 } 1865 xfer = fw_xfer_alloc(); 1866 if(xfer == NULL){ 1867 return; 1868 } 1869 xfer->spd = spd; 1870 xfer->send.buf = malloc(16, M_DEVBUF, M_NOWAIT); 1871 resfp = (struct fw_pkt *)xfer->send.buf; 1872 switch(fp->mode.common.tcode){ 1873 case FWTCODE_WREQQ: 1874 case FWTCODE_WREQB: 1875 resfp->mode.hdr.tcode = FWTCODE_WRES; 1876 xfer->send.len = 12; 1877 break; 1878 case FWTCODE_RREQQ: 1879 resfp->mode.hdr.tcode = FWTCODE_RRESQ; 1880 xfer->send.len = 16; 1881 break; 1882 case FWTCODE_RREQB: 1883 resfp->mode.hdr.tcode = FWTCODE_RRESB; 1884 xfer->send.len = 16; 1885 break; 1886 case FWTCODE_LREQ: 1887 resfp->mode.hdr.tcode = FWTCODE_LRES; 1888 xfer->send.len = 16; 1889 break; 1890 } 1891 resfp->mode.hdr.dst = fp->mode.hdr.src; 1892 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt; 1893 resfp->mode.hdr.pri = fp->mode.hdr.pri; 1894 resfp->mode.rresb.rtcode = 7; 1895 resfp->mode.rresb.extcode = 0; 1896 resfp->mode.rresb.len = 0; 1897/* 1898 xfer->act.hand = fw_asy_callback; 1899*/ 1900 xfer->act.hand = fw_xfer_free; 1901 if(fw_asyreq(fc, -1, xfer)){ 1902 fw_xfer_free( xfer); 1903 return; 1904 } 1905 goto err; 1906 } 1907 switch(bind->xfer->act_type){ 1908 case FWACT_XFER: 1909 xfer = fw_xfer_alloc(); 1910 if(xfer == NULL) goto err; 1911 xfer->fc = bind->xfer->fc; 1912 xfer->sc = bind->xfer->sc; 1913 xfer->recv.buf = buf; 1914 xfer->recv.len = len; 1915 xfer->recv.off = off; 1916 xfer->spd = spd; 1917 xfer->act.hand = bind->xfer->act.hand; 1918 if (fc->status != FWBUSRESET) 1919 xfer->act.hand(xfer); 1920 else 1921 STAILQ_INSERT_TAIL(&fc->pending, xfer, link); 1922 return; 1923 break; 1924 case FWACT_CH: 1925 if(fc->ir[bind->xfer->sub]->queued >= 1926 fc->ir[bind->xfer->sub]->maxq){ 1927 device_printf(fc->bdev, 1928 "Discard a packet %x %d\n", 1929 bind->xfer->sub, 1930 fc->ir[bind->xfer->sub]->queued); 1931 goto err; 1932 } 1933 xfer = fw_xfer_alloc(); 1934 if(xfer == NULL) goto err; 1935 xfer->recv.buf = buf; 1936 xfer->recv.len = len; 1937 xfer->recv.off = off; 1938 xfer->spd = spd; 1939 s = splfw(); 1940 fc->ir[bind->xfer->sub]->queued++; 1941 STAILQ_INSERT_TAIL(&fc->ir[bind->xfer->sub]->q, xfer, link); 1942 splx(s); 1943 1944 wakeup((caddr_t)fc->ir[bind->xfer->sub]); 1945 1946 return; 1947 break; 1948 default: 1949 goto err; 1950 break; 1951 } 1952 break; 1953 case FWTCODE_STREAM: 1954 { 1955 struct fw_xferq *xferq; 1956 1957 xferq = fc->ir[sub]; 1958#if 0 1959 printf("stream rcv dma %d len %d off %d spd %d\n", 1960 sub, len, off, spd); 1961#endif 1962 if(xferq->queued >= xferq->maxq) { 1963 printf("receive queue is full\n"); 1964 goto err; 1965 } 1966 xfer = fw_xfer_alloc(); 1967 if(xfer == NULL) goto err; 1968 xfer->recv.buf = buf; 1969 xfer->recv.len = len; 1970 xfer->recv.off = off; 1971 xfer->spd = spd; 1972 s = splfw(); 1973 xferq->queued++; 1974 STAILQ_INSERT_TAIL(&xferq->q, xfer, link); 1975 splx(s); 1976 sc = device_get_softc(fc->bdev); 1977#if __FreeBSD_version >= 500000 1978 if (SEL_WAITING(&xferq->rsel)) 1979#else 1980 if (&xferq->rsel.si_pid != 0) 1981#endif 1982 selwakeup(&xferq->rsel); 1983 if (xferq->flag & FWXFERQ_WAKEUP) { 1984 xferq->flag &= ~FWXFERQ_WAKEUP; 1985 wakeup((caddr_t)xferq); 1986 } 1987 if (xferq->flag & FWXFERQ_HANDLER) { 1988 xferq->hand(xferq); 1989 } 1990 return; 1991 break; 1992 } 1993 default: 1994 printf("fw_rcv: unknow tcode\n"); 1995 break; 1996 } 1997err: 1998 free(buf, M_DEVBUF); 1999} 2000 2001/* 2002 * Post process for Bus Manager election process. 2003 */ 2004static void 2005fw_try_bmr_callback(struct fw_xfer *xfer) 2006{ 2007 struct fw_pkt *rfp; 2008 struct firewire_comm *fc; 2009 int bmr; 2010 2011 if (xfer == NULL) 2012 return; 2013 fc = xfer->fc; 2014 if (xfer->resp != 0) 2015 goto error; 2016 if (xfer->send.buf == NULL) 2017 goto error; 2018 if (xfer->recv.buf == NULL) 2019 goto error; 2020 rfp = (struct fw_pkt *)xfer->recv.buf; 2021 if (rfp->mode.lres.rtcode != FWRCODE_COMPLETE) 2022 goto error; 2023 2024 bmr = ntohl(rfp->mode.lres.payload[0]); 2025 if (bmr == 0x3f) 2026 bmr = fc->nodeid; 2027 2028 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f); 2029 device_printf(fc->bdev, "new bus manager %d ", 2030 CSRARC(fc, BUS_MGR_ID)); 2031 if(bmr == fc->nodeid){ 2032 printf("(me)\n"); 2033/* If I am bus manager, optimize gapcount */ 2034 if(fc->max_hop <= MAX_GAPHOP ){ 2035 fw_phy_config(fc, -1, gap_cnt[fc->max_hop]); 2036 } 2037 }else{ 2038 printf("\n"); 2039 } 2040error: 2041 fw_xfer_free(xfer); 2042} 2043 2044/* 2045 * To candidate Bus Manager election process. 2046 */ 2047void 2048fw_try_bmr(void *arg) 2049{ 2050 struct fw_xfer *xfer; 2051 struct firewire_comm *fc = (struct firewire_comm *)arg; 2052 struct fw_pkt *fp; 2053 int err = 0; 2054 2055 xfer = fw_xfer_alloc(); 2056 if(xfer == NULL){ 2057 return; 2058 } 2059 xfer->send.len = 24; 2060 xfer->spd = 0; 2061 xfer->send.buf = malloc(24, M_DEVBUF, M_NOWAIT); 2062 if(xfer->send.buf == NULL){ 2063 fw_xfer_free( xfer); 2064 return; 2065 } 2066 2067 fc->status = FWBUSMGRELECT; 2068 2069 xfer->send.off = 0; 2070 fp = (struct fw_pkt *)xfer->send.buf; 2071 fp->mode.lreq.dest_hi = htons(0xffff); 2072 fp->mode.lreq.tlrt = 0; 2073 fp->mode.lreq.tcode = FWTCODE_LREQ; 2074 fp->mode.lreq.pri = 0; 2075 fp->mode.lreq.src = 0; 2076 fp->mode.lreq.len = htons(8); 2077 fp->mode.lreq.extcode = htons(FW_LREQ_CMPSWAP); 2078 xfer->dst = FWLOCALBUS | fc->irm; 2079 fp->mode.lreq.dst = htons(xfer->dst); 2080 fp->mode.lreq.dest_lo = htonl(0xf0000000 | BUS_MGR_ID); 2081 fp->mode.lreq.payload[0] = htonl(0x3f); 2082 fp->mode.lreq.payload[1] = htonl(fc->nodeid); 2083 xfer->act_type = FWACT_XFER; 2084 xfer->act.hand = fw_try_bmr_callback; 2085 2086 err = fw_asyreq(fc, -1, xfer); 2087 if(err){ 2088 fw_xfer_free( xfer); 2089 return; 2090 } 2091 return; 2092} 2093 2094#ifdef FW_VMACCESS 2095/* 2096 * Software implementation for physical memory block access. 2097 * XXX:Too slow, usef for debug purpose only. 2098 */ 2099static void 2100fw_vmaccess(struct fw_xfer *xfer){ 2101 struct fw_pkt *rfp, *sfp = NULL; 2102 u_int32_t *ld = (u_int32_t *)(xfer->recv.buf + xfer->recv.off); 2103 2104 printf("vmaccess spd:%2x len:%03x %d data:%08x %08x %08x %08x\n", 2105 xfer->spd, xfer->recv.len, xfer->recv.off, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 2106 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 2107 if(xfer->resp != 0){ 2108 fw_xfer_free( xfer); 2109 return; 2110 } 2111 if(xfer->recv.buf == NULL){ 2112 fw_xfer_free( xfer); 2113 return; 2114 } 2115 rfp = (struct fw_pkt *)xfer->recv.buf; 2116 switch(rfp->mode.hdr.tcode){ 2117 /* XXX need fix for 64bit arch */ 2118 case FWTCODE_WREQB: 2119 xfer->send.buf = malloc(12, M_DEVBUF, M_NOWAIT); 2120 xfer->send.len = 12; 2121 sfp = (struct fw_pkt *)xfer->send.buf; 2122 bcopy(rfp->mode.wreqb.payload, 2123 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len)); 2124 sfp->mode.wres.tcode = FWTCODE_WRES; 2125 sfp->mode.wres.rtcode = 0; 2126 break; 2127 case FWTCODE_WREQQ: 2128 xfer->send.buf = malloc(12, M_DEVBUF, M_NOWAIT); 2129 xfer->send.len = 12; 2130 sfp->mode.wres.tcode = FWTCODE_WRES; 2131 *((u_int32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data; 2132 sfp->mode.wres.rtcode = 0; 2133 break; 2134 case FWTCODE_RREQB: 2135 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_DEVBUF, M_NOWAIT); 2136 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len); 2137 sfp = (struct fw_pkt *)xfer->send.buf; 2138 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo), 2139 sfp->mode.rresb.payload, (u_int16_t)ntohs(rfp->mode.rreqb.len)); 2140 sfp->mode.rresb.tcode = FWTCODE_RRESB; 2141 sfp->mode.rresb.len = rfp->mode.rreqb.len; 2142 sfp->mode.rresb.rtcode = 0; 2143 sfp->mode.rresb.extcode = 0; 2144 break; 2145 case FWTCODE_RREQQ: 2146 xfer->send.buf = malloc(16, M_DEVBUF, M_NOWAIT); 2147 xfer->send.len = 16; 2148 sfp = (struct fw_pkt *)xfer->send.buf; 2149 sfp->mode.rresq.data = *(u_int32_t *)(ntohl(rfp->mode.rreqq.dest_lo)); 2150 sfp->mode.wres.tcode = FWTCODE_RRESQ; 2151 sfp->mode.rresb.rtcode = 0; 2152 break; 2153 default: 2154 fw_xfer_free( xfer); 2155 return; 2156 } 2157 xfer->send.off = 0; 2158 sfp->mode.hdr.dst = rfp->mode.hdr.src; 2159 xfer->dst = ntohs(rfp->mode.hdr.src); 2160 xfer->act.hand = fw_xfer_free; 2161 xfer->retry_req = fw_asybusy; 2162 2163 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt; 2164 sfp->mode.hdr.pri = 0; 2165 2166 fw_asyreq(xfer->fc, -1, xfer); 2167/**/ 2168 return; 2169} 2170#endif 2171 2172/* 2173 * CRC16 check-sum for IEEE1394 register blocks. 2174 */ 2175u_int16_t 2176fw_crc16(u_int32_t *ptr, u_int32_t len){ 2177 u_int32_t i, sum, crc = 0; 2178 int shift; 2179 len = (len + 3) & ~3; 2180 for(i = 0 ; i < len ; i+= 4){ 2181 for( shift = 28 ; shift >= 0 ; shift -= 4){ 2182 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf; 2183 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum; 2184 } 2185 crc &= 0xffff; 2186 } 2187 return((u_int16_t) crc); 2188} 2189 2190DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,0,0); 2191MODULE_VERSION(firewire, 1); 2192