firewire.c revision 109227
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 109227 2003-01-14 08:35:45Z simokawa $ 34 * 35 */ 36 37#include <sys/param.h> 38#include <sys/systm.h> 39#include <sys/types.h> 40#include <sys/mbuf.h> 41#include <sys/socket.h> 42#include <sys/socketvar.h> 43 44#include <sys/kernel.h> 45#include <sys/malloc.h> 46#include <sys/conf.h> 47#include <sys/uio.h> 48#include <sys/sysctl.h> 49 50#include <machine/cpufunc.h> /* for rdtsc proto for clock.h below */ 51#include <machine/clock.h> 52 53#include <sys/bus.h> /* used by smbus and newbus */ 54 55#include <dev/firewire/firewire.h> 56#include <dev/firewire/firewirereg.h> 57#include <dev/firewire/iec13213.h> 58#include <dev/firewire/iec68113.h> 59 60int firewire_debug=0; 61SYSCTL_NODE(_hw, OID_AUTO, firewire, CTLFLAG_RD, 0, "FireWire Subsystem"); 62SYSCTL_INT(_debug, OID_AUTO, firewire_debug, CTLFLAG_RW, &firewire_debug, 0, 63 "FireWire driver debug flag"); 64 65#define FW_MAXASYRTY 4 66#define FW_MAXDEVRCNT 4 67 68#define XFER_TIMEOUT 0 69 70devclass_t firewire_devclass; 71 72static int firewire_match __P((device_t)); 73static int firewire_attach __P((device_t)); 74static int firewire_detach __P((device_t)); 75#if 0 76static int firewire_shutdown __P((device_t)); 77#endif 78static device_t firewire_add_child __P((device_t, int, const char *, int)); 79static void fw_try_bmr __P((void *)); 80static void fw_try_bmr_callback __P((struct fw_xfer *)); 81static void fw_asystart __P((struct fw_xfer *)); 82static int fw_get_tlabel __P((struct firewire_comm *, struct fw_xfer *)); 83static void fw_bus_probe __P((struct firewire_comm *)); 84static void fw_bus_explore __P((struct firewire_comm *)); 85static void fw_bus_explore_callback __P((struct fw_xfer *)); 86static void fw_attach_dev __P((struct firewire_comm *)); 87#ifdef FW_VMACCESS 88static void fw_vmaccess __P((struct fw_xfer *)); 89#endif 90struct fw_xfer *asyreqq __P((struct firewire_comm *, u_int8_t, u_int8_t, u_int8_t, 91 u_int32_t, u_int32_t, void (*)__P((struct fw_xfer *)))); 92 93static device_method_t firewire_methods[] = { 94 /* Device interface */ 95 DEVMETHOD(device_probe, firewire_match), 96 DEVMETHOD(device_attach, firewire_attach), 97 DEVMETHOD(device_detach, firewire_detach), 98 DEVMETHOD(device_suspend, bus_generic_suspend), 99 DEVMETHOD(device_resume, bus_generic_resume), 100 DEVMETHOD(device_shutdown, bus_generic_shutdown), 101 102 /* Bus interface */ 103 DEVMETHOD(bus_add_child, firewire_add_child), 104 DEVMETHOD(bus_print_child, bus_generic_print_child), 105 106 { 0, 0 } 107}; 108char linkspeed[7][0x10]={"S100","S200","S400","S800","S1600","S3200","Unknown"}; 109 110#define MAX_GAPHOP 16 111u_int gap_cnt[] = {1, 1, 4, 6, 9, 12, 14, 17, 112 20, 23, 25, 28, 31, 33, 36, 39, 42}; 113 114extern struct cdevsw firewire_cdevsw; 115 116static driver_t firewire_driver = { 117 "firewire", 118 firewire_methods, 119 sizeof(struct firewire_softc), 120}; 121 122/* 123 * transmitter buffer update. 124 */ 125int 126fw_tbuf_update(struct firewire_comm *fc, int sub, int flag){ 127 struct fw_bulkxfer *bulkxfer, *bulkxfer2 = NULL; 128 struct fw_dvbuf *dvbuf = NULL; 129 struct fw_xferq *it; 130 int s, err = 0, i, j, chtag; 131 struct fw_pkt *fp; 132 u_int64_t cycle, dvsync; 133 134 it = fc->it[sub]; 135 136 s = splfw(); 137 if(it->stdma == NULL){ 138 bulkxfer = STAILQ_FIRST(&it->stvalid); 139 }else if(flag != 0){ 140 bulkxfer = STAILQ_FIRST(&it->stvalid); 141 if(bulkxfer == it->stdma){ 142 STAILQ_REMOVE_HEAD(&it->stvalid, link); 143 it->stdma->flag = 0; 144 STAILQ_INSERT_TAIL(&it->stfree, it->stdma, link); 145 if(!(it->flag & FWXFERQ_DV)) 146 wakeup(it); 147 } 148 bulkxfer = STAILQ_FIRST(&it->stvalid); 149 }else{ 150 bulkxfer = it->stdma; 151 } 152 if(bulkxfer != NULL){ 153 bulkxfer2 = STAILQ_NEXT(bulkxfer, link); 154#if 0 155 if(it->flag & FWXFERQ_DV && bulkxfer2 == NULL){ 156 bulkxfer2 = STAILQ_FIRST(&it->stfree); 157 STAILQ_REMOVE_HEAD(&it->stfree, link); 158 bcopy(bulkxfer->buf, bulkxfer2->buf, 159 it->psize * it->btpacket); 160 STAILQ_INSERT_TAIL(&it->stvalid, bulkxfer2, link); 161 } 162#endif 163 } 164 it->stdma = bulkxfer; 165 it->stdma2 = bulkxfer2; 166 167 if(it->flag & FWXFERQ_DV){ 168 chtag = it->flag & 0xff; 169dvloop: 170 if(it->dvdma == NULL){ 171 dvbuf = STAILQ_FIRST(&it->dvvalid); 172 if(dvbuf != NULL){ 173 STAILQ_REMOVE_HEAD(&it->dvvalid, link); 174 it->dvdma = dvbuf; 175 it->queued = 0; 176 } 177 } 178 if(it->dvdma == NULL) 179 goto out; 180 181 it->stproc = STAILQ_FIRST(&it->stfree); 182 if(it->stproc != NULL){ 183 STAILQ_REMOVE_HEAD(&it->stfree, link); 184 }else{ 185 goto out; 186 } 187#if 1 188#define DVSEC 100 189#define DVFRAC 2997 /* NTSC: 29.97 Hz (2997 = 29.97 * 100) */ 190#define DVDIFF 203 /* 203 = (8000/250 - 29.97) * 100 */ 191#else 192#define DVSEC 3 193#define DVFRAC 75 /* PAL: 25 Hz (1875 = 25 * 3) */ 194#define DVDIFF 5 /* 125 = (8000/300 - 25) * 3 */ 195#endif 196#define CYCLEFRAC 0xc00 197 cycle = (u_int64_t) 8000 * DVSEC * it->dvsync; 198 /* least significant 12 bits */ 199 dvsync = (cycle * CYCLEFRAC / DVFRAC) % CYCLEFRAC; 200 /* most significat 4 bits */ 201 cycle = (cycle / DVFRAC + it->dvoffset) & 0xf; 202 fp = (struct fw_pkt *)(it->dvdma->buf); 203#if 1 204 fp->mode.ld[2] = htonl(0x80000000 | (cycle << 12) | dvsync); 205#else 206 fp->mode.ld[2] = htonl(0x80000000 | dvsync); 207#endif 208 it->dvsync ++; 209 it->dvsync %= 2997; 210 211 for( i = 0, j = 0 ; i < it->dvpacket ; i++){ 212 bcopy(it->dvdma->buf + it->queued * it->psize, 213 it->stproc->buf + j * it->psize, it->psize); 214 fp = (struct fw_pkt *)(it->stproc->buf + j * it->psize); 215 fp->mode.stream.len = htons(488); 216 fp->mode.stream.chtag = chtag; 217 fp->mode.stream.tcode = FWTCODE_STREAM; 218 fp->mode.ld[1] = htonl((fc->nodeid << 24) | 0x00780000 | it->dvdbc); 219 it->dvdbc++; 220 it->dvdbc %= 256; 221 it->queued ++; 222 j++; 223 it->dvdiff += DVDIFF; 224 if(it->dvdiff >= DVFRAC){ 225 it->dvdiff %= DVFRAC; 226 fp = (struct fw_pkt *)(it->stproc->buf + j * it->psize); 227 228 fp->mode.stream.len = htons(0x8); 229 fp->mode.stream.chtag = chtag; 230 fp->mode.stream.tcode = FWTCODE_STREAM; 231 fp->mode.ld[1] = htonl((fc->nodeid << 24) | 232 0x00780000 | it->dvdbc); 233 j++; 234 } 235 } 236 it->stproc->npacket = j; 237 STAILQ_INSERT_TAIL(&it->stvalid, it->stproc, link); 238 if(it->queued >= it->dvpacket){ 239 STAILQ_INSERT_TAIL(&it->dvfree, it->dvdma, link); 240 it->dvdma = NULL; 241 wakeup(it); 242 goto dvloop; 243 } 244 } 245out: 246 splx(s); 247 return err; 248} 249/* 250 * receving buffer update. 251 */ 252int 253fw_rbuf_update(struct firewire_comm *fc, int sub, int flag){ 254 struct fw_bulkxfer *bulkxfer, *bulkxfer2 = NULL; 255 struct fw_xferq *ir; 256 int s, err = 0; 257 258 ir = fc->ir[sub]; 259 s = splfw(); 260 if(ir->stdma != NULL){ 261 if(flag != 0){ 262 STAILQ_INSERT_TAIL(&ir->stvalid, ir->stdma, link); 263 }else{ 264 ir->stdma->flag = 0; 265 STAILQ_INSERT_TAIL(&ir->stfree, ir->stdma, link); 266 } 267 } 268 if(ir->stdma2 != NULL){ 269 bulkxfer = ir->stdma2; 270 bulkxfer2 = STAILQ_FIRST(&ir->stfree); 271 if(bulkxfer2 != NULL){ 272 STAILQ_REMOVE_HEAD(&ir->stfree, link); 273 } 274 }else{ 275 bulkxfer = STAILQ_FIRST(&ir->stfree); 276 if(bulkxfer != NULL){ 277 STAILQ_REMOVE_HEAD(&ir->stfree, link); 278 bulkxfer2 = STAILQ_FIRST(&ir->stfree); 279 if(bulkxfer2 != NULL){ 280 STAILQ_REMOVE_HEAD(&ir->stfree, link); 281 } 282 }else{ 283 device_printf(fc->bdev, "no free chunk available\n"); 284 bulkxfer = STAILQ_FIRST(&ir->stvalid); 285 STAILQ_REMOVE_HEAD(&ir->stvalid, link); 286 } 287 } 288 splx(s); 289 ir->stdma = bulkxfer; 290 ir->stdma2 = bulkxfer2; 291 return err; 292} 293 294/* 295 * To lookup node id. from EUI64. 296 */ 297struct fw_device * 298fw_noderesolve(struct firewire_comm *fc, struct fw_eui64 eui) 299{ 300 struct fw_device *fwdev; 301 for(fwdev = TAILQ_FIRST(&fc->devices); fwdev != NULL; 302 fwdev = TAILQ_NEXT(fwdev, link)){ 303 if(fwdev->eui.hi == eui.hi && fwdev->eui.lo == eui.lo){ 304 break; 305 } 306 } 307 if(fwdev == NULL) return NULL; 308 if(fwdev->status == FWDEVINVAL) return NULL; 309 return fwdev; 310} 311 312/* 313 * Async. request procedure for userland application. 314 */ 315int 316fw_asyreq(struct firewire_comm *fc, int sub, struct fw_xfer *xfer) 317{ 318 int err = 0; 319 struct fw_xferq *xferq; 320 int tl = 0, len; 321 struct fw_pkt *fp; 322 int tcode; 323 struct tcode_info *info; 324 325 if(xfer == NULL) return EINVAL; 326 if(xfer->send.len > MAXREC(fc->maxrec)){ 327 printf("send.len > maxrec\n"); 328 return EINVAL; 329 } 330 if(xfer->act.hand == NULL){ 331 printf("act.hand == NULL\n"); 332 return EINVAL; 333 } 334 fp = (struct fw_pkt *)xfer->send.buf; 335 336 tcode = fp->mode.common.tcode & 0xf; 337 info = &fc->tcode[tcode]; 338 if (info->flag == 0) { 339 printf("invalid tcode=%d\n", tcode); 340 return EINVAL; 341 } 342 if (info->flag & FWTI_REQ) 343 xferq = fc->atq; 344 else 345 xferq = fc->ats; 346 len = info->hdr_len; 347 if (info->flag & FWTI_BLOCK_STR) 348 len += ntohs(fp->mode.stream.len); 349 else if (info->flag & FWTI_BLOCK_ASY) 350 len += ntohs(fp->mode.rresb.len); 351 if( len > xfer->send.len ){ 352 printf("len(%d) > send.len(%d) (tcode=%d)\n", 353 len, xfer->send.len, tcode); 354 return EINVAL; 355 } 356 xfer->send.len = len; 357 358 if(xferq->start == NULL){ 359 printf("xferq->start == NULL\n"); 360 return EINVAL; 361 } 362 if(!(xferq->queued < xferq->maxq)){ 363 device_printf(fc->bdev, "Discard a packet (queued=%d)\n", 364 xferq->queued); 365 return EINVAL; 366 } 367 368 369 if (info->flag & FWTI_TLABEL) { 370 if((tl = fw_get_tlabel(fc, xfer)) == -1 ) 371 return EIO; 372 fp->mode.hdr.tlrt = tl << 2; 373 } 374 375 xfer->tl = tl; 376 xfer->tcode = tcode; 377 xfer->resp = 0; 378 xfer->fc = fc; 379 xfer->q = xferq; 380 xfer->act_type = FWACT_XFER; 381 xfer->retry_req = fw_asybusy; 382 383 fw_asystart(xfer); 384 return err; 385} 386/* 387 * Wakeup blocked process. 388 */ 389void 390fw_asy_callback(struct fw_xfer *xfer){ 391 wakeup(xfer); 392 return; 393} 394/* 395 * Postpone to later retry. 396 */ 397void fw_asybusy(struct fw_xfer *xfer){ 398#if 1 399 printf("fw_asybusy\n"); 400#endif 401#if XFER_TIMEOUT 402 untimeout(fw_xfer_timeout, (void *)xfer, xfer->ch); 403#endif 404/* 405 xfer->ch = timeout((timeout_t *)fw_asystart, (void *)xfer, 20000); 406*/ 407 DELAY(20000); 408 fw_asystart(xfer); 409 return; 410} 411#if XFER_TIMEOUT 412/* 413 * Post timeout for async. request. 414 */ 415void 416fw_xfer_timeout(void *arg) 417{ 418 int s; 419 struct fw_xfer *xfer; 420 421 xfer = (struct fw_xfer *)arg; 422 printf("fw_xfer_timeout status=%d resp=%d\n", xfer->state, xfer->resp); 423 /* XXX set error code */ 424 s = splfw(); 425 xfer->act.hand(xfer); 426 splx(s); 427} 428#endif 429/* 430 * Async. request with given xfer structure. 431 */ 432static void 433fw_asystart(struct fw_xfer *xfer) 434{ 435 struct firewire_comm *fc = xfer->fc; 436 int s; 437 if(xfer->retry++ >= fc->max_asyretry){ 438 xfer->resp = EBUSY; 439 xfer->state = FWXF_BUSY; 440 xfer->act.hand(xfer); 441 return; 442 } 443#if 0 /* XXX allow bus explore packets only after bus rest */ 444 if (fc->status < FWBUSEXPLORE) { 445 xfer->resp = EAGAIN; 446 xfer->state = FWXF_BUSY; 447 if (xfer->act.hand != NULL) 448 xfer->act.hand(xfer); 449 return; 450 } 451#endif 452 s = splfw(); 453 xfer->state = FWXF_INQ; 454 STAILQ_INSERT_TAIL(&xfer->q->q, xfer, link); 455 xfer->q->queued ++; 456 splx(s); 457 /* XXX just queue for mbuf */ 458 if (xfer->mbuf == NULL) 459 xfer->q->start(fc); 460#if XFER_TIMEOUT 461 if (xfer->act.hand != NULL) 462 xfer->ch = timeout(fw_xfer_timeout, (void *)xfer, hz); 463#endif 464 return; 465} 466 467static int 468firewire_match( device_t dev ) 469{ 470 device_set_desc(dev, "IEEE1394(FireWire) bus"); 471 return -140; 472} 473 474/* 475 * The attach routine. 476 */ 477static int 478firewire_attach( device_t dev ) 479{ 480 int i, unitmask, mn; 481 struct firewire_softc *sc = device_get_softc(dev); 482 device_t pa = device_get_parent(dev); 483 struct firewire_comm *fc; 484 dev_t d; 485 486 fc = (struct firewire_comm *)device_get_softc(pa); 487 sc->fc = fc; 488 489 unitmask = UNIT2MIN(device_get_unit(dev)); 490 491 if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA; 492 for ( i = 0 ; i < fc->nisodma ; i++ ){ 493 mn = unitmask | i; 494 /* XXX device name should be improved */ 495 d = make_dev(&firewire_cdevsw, unit2minor(mn), 496 UID_ROOT, GID_OPERATOR, 0660, 497 "fw%x", mn); 498#if __FreeBSD_version >= 500000 499 if (i == 0) 500 sc->dev = d; 501 else 502 dev_depends(sc->dev, d); 503#else 504 sc->dev[i] = d; 505#endif 506 } 507 d = make_dev(&firewire_cdevsw, unit2minor(unitmask | FWMEM_FLAG), 508 UID_ROOT, GID_OPERATOR, 0660, 509 "fwmem%d", device_get_unit(dev)); 510#if __FreeBSD_version >= 500000 511 dev_depends(sc->dev, d); 512#else 513 sc->dev[i] = d; 514#endif 515 sc->fc->timeouthandle = timeout((timeout_t *)sc->fc->timeout, (void *)sc->fc, hz * 10); 516 517 callout_init(&sc->fc->busprobe_callout 518#if __FreeBSD_version >= 500000 519 , /* mpsafe? */ 0); 520#else 521 ); 522#endif 523 524 /* Locate our children */ 525 bus_generic_probe(dev); 526 527 /* launch attachement of the added children */ 528 bus_generic_attach(dev); 529 530 /* bus_reset */ 531 fc->ibr(fc); 532 533 return 0; 534} 535 536/* 537 * Attach it as child. 538 */ 539static device_t 540firewire_add_child(device_t dev, int order, const char *name, int unit) 541{ 542 device_t child; 543 struct firewire_softc *sc; 544 545 sc = (struct firewire_softc *)device_get_softc(dev); 546 child = device_add_child(dev, name, unit); 547 if (child) { 548 device_set_ivars(child, sc->fc); 549 device_probe_and_attach(child); 550 } 551 552 return child; 553} 554 555/* 556 * Dettach it. 557 */ 558static int 559firewire_detach( device_t dev ) 560{ 561 struct firewire_softc *sc; 562 563 sc = (struct firewire_softc *)device_get_softc(dev); 564 565#if __FreeBSD_version >= 500000 566 destroy_dev(sc->dev); 567#else 568 { 569 int j; 570 for (j = 0 ; j < sc->fc->nisodma + 1; j++) 571 destroy_dev(sc->dev[j]); 572 } 573#endif 574 /* XXX xfree_free and untimeout on all xfers */ 575 untimeout((timeout_t *)sc->fc->timeout, sc->fc, sc->fc->timeouthandle); 576 free(sc->fc->topology_map, M_DEVBUF); 577 free(sc->fc->speed_map, M_DEVBUF); 578 bus_generic_detach(dev); 579 return(0); 580} 581#if 0 582static int 583firewire_shutdown( device_t dev ) 584{ 585 return 0; 586} 587#endif 588 589/* 590 * Called after bus reset. 591 */ 592void 593fw_busreset(struct firewire_comm *fc) 594{ 595 int i; 596 struct fw_xfer *xfer; 597 598 switch(fc->status){ 599 case FWBUSMGRELECT: 600 untimeout((timeout_t *)fw_try_bmr, (void *)fc, fc->bmrhandle); 601 break; 602 default: 603 break; 604 } 605 fc->status = FWBUSRESET; 606/* XXX: discard all queued packet */ 607 while((xfer = STAILQ_FIRST(&fc->atq->q)) != NULL){ 608 STAILQ_REMOVE_HEAD(&fc->atq->q, link); 609 xfer->resp = EAGAIN; 610 switch(xfer->act_type){ 611 case FWACT_XFER: 612 fw_xfer_done(xfer); 613 break; 614 default: 615 break; 616 } 617 fw_xfer_free( xfer); 618 } 619 while((xfer = STAILQ_FIRST(&fc->ats->q)) != NULL){ 620 STAILQ_REMOVE_HEAD(&fc->ats->q, link); 621 xfer->resp = EAGAIN; 622 switch(xfer->act_type){ 623 case FWACT_XFER: 624 fw_xfer_done(xfer); 625 default: 626 break; 627 } 628 fw_xfer_free( xfer); 629 } 630 for(i = 0; i < fc->nisodma; i++) 631 while((xfer = STAILQ_FIRST(&fc->it[i]->q)) != NULL){ 632 STAILQ_REMOVE_HEAD(&fc->it[i]->q, link); 633 xfer->resp = 0; 634 switch(xfer->act_type){ 635 case FWACT_XFER: 636 fw_xfer_done(xfer); 637 break; 638 default: 639 break; 640 } 641 fw_xfer_free( xfer); 642 } 643 644 CSRARC(fc, STATE_CLEAR) 645 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 646 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 647 CSRARC(fc, NODE_IDS) = 0x3f; 648 649 CSRARC(fc, TOPO_MAP + 8) = 0; 650 fc->irm = -1; 651 652 fc->max_node = -1; 653 654 for(i = 2; i < 0x100/4 - 2 ; i++){ 655 CSRARC(fc, SPED_MAP + i * 4) = 0; 656 } 657 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 658 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 659 CSRARC(fc, RESET_START) = 0; 660 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0; 661 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19; 662 CSRARC(fc, CYCLE_TIME) = 0x0; 663 CSRARC(fc, BUS_TIME) = 0x0; 664 CSRARC(fc, BUS_MGR_ID) = 0x3f; 665 CSRARC(fc, BANDWIDTH_AV) = 4915; 666 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff; 667 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff; 668 CSRARC(fc, IP_CHANNELS) = (1 << 31); 669 670 CSRARC(fc, CONF_ROM) = 0x04 << 24; 671 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */ 672 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 | 673 1 << 28 | 0xff << 16 | 0x09 << 8; 674 CSRARC(fc, CONF_ROM + 0xc) = 0; 675 676/* DV depend CSRs see blue book */ 677 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON; 678 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON; 679 680 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 ); 681 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 682} 683 684/* Call once after reboot */ 685void fw_init(struct firewire_comm *fc) 686{ 687 int i; 688 struct csrdir *csrd; 689#ifdef FW_VMACCESS 690 struct fw_xfer *xfer; 691 struct fw_bind *fwb; 692#endif 693 694 fc->max_asyretry = FW_MAXASYRTY; 695 696 fc->arq->queued = 0; 697 fc->ars->queued = 0; 698 fc->atq->queued = 0; 699 fc->ats->queued = 0; 700 701 fc->arq->psize = FWPMAX_S400; 702 fc->ars->psize = FWPMAX_S400; 703 fc->atq->psize = FWPMAX_S400; 704 fc->ats->psize = FWPMAX_S400; 705 706 707 fc->arq->buf = NULL; 708 fc->ars->buf = NULL; 709 fc->atq->buf = NULL; 710 fc->ats->buf = NULL; 711 712 fc->arq->flag = FWXFERQ_PACKET; 713 fc->ars->flag = FWXFERQ_PACKET; 714 fc->atq->flag = FWXFERQ_PACKET; 715 fc->ats->flag = FWXFERQ_PACKET; 716 717 STAILQ_INIT(&fc->atq->q); 718 STAILQ_INIT(&fc->ats->q); 719 720 for( i = 0 ; i < fc->nisodma ; i ++ ){ 721 fc->it[i]->queued = 0; 722 fc->ir[i]->queued = 0; 723 724 fc->it[i]->start = NULL; 725 fc->ir[i]->start = NULL; 726 727 fc->it[i]->buf = NULL; 728 fc->ir[i]->buf = NULL; 729 730 fc->it[i]->flag = FWXFERQ_STREAM; 731 fc->ir[i]->flag = FWXFERQ_STREAM; 732 733 STAILQ_INIT(&fc->it[i]->q); 734 STAILQ_INIT(&fc->ir[i]->q); 735 736 STAILQ_INIT(&fc->it[i]->binds); 737 STAILQ_INIT(&fc->ir[i]->binds); 738 } 739 740 fc->arq->maxq = FWMAXQUEUE; 741 fc->ars->maxq = FWMAXQUEUE; 742 fc->atq->maxq = FWMAXQUEUE; 743 fc->ats->maxq = FWMAXQUEUE; 744 745 for( i = 0 ; i < fc->nisodma ; i++){ 746 fc->ir[i]->maxq = FWMAXQUEUE; 747 fc->it[i]->maxq = FWMAXQUEUE; 748 } 749/* Initialize csr registers */ 750 fc->topology_map = (struct fw_topology_map *)malloc( 751 sizeof(struct fw_topology_map), 752 M_DEVBUF, M_DONTWAIT | M_ZERO); 753 fc->speed_map = (struct fw_speed_map *)malloc( 754 sizeof(struct fw_speed_map), 755 M_DEVBUF, M_DONTWAIT | M_ZERO); 756 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16; 757 CSRARC(fc, TOPO_MAP + 4) = 1; 758 CSRARC(fc, SPED_MAP) = 0x3f1 << 16; 759 CSRARC(fc, SPED_MAP + 4) = 1; 760 761 TAILQ_INIT(&fc->devices); 762 STAILQ_INIT(&fc->pending); 763 764/* Initialize csr ROM work space */ 765 SLIST_INIT(&fc->ongocsr); 766 SLIST_INIT(&fc->csrfree); 767 for( i = 0 ; i < FWMAXCSRDIR ; i++){ 768 csrd = (struct csrdir *) malloc(sizeof(struct csrdir), M_DEVBUF,M_DONTWAIT); 769 if(csrd == NULL) break; 770 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 771 } 772 773/* Initialize Async handlers */ 774 STAILQ_INIT(&fc->binds); 775 for( i = 0 ; i < 0x40 ; i++){ 776 STAILQ_INIT(&fc->tlabels[i]); 777 } 778 779/* DV depend CSRs see blue book */ 780#if 0 781 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */ 782 CSRARC(fc, oPCR) = 0x8000007a; 783 for(i = 4 ; i < 0x7c/4 ; i+=4){ 784 CSRARC(fc, i + oPCR) = 0x8000007a; 785 } 786 787 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */ 788 CSRARC(fc, iPCR) = 0x803f0000; 789 for(i = 4 ; i < 0x7c/4 ; i+=4){ 790 CSRARC(fc, i + iPCR) = 0x0; 791 } 792#endif 793 794 795#ifdef FW_VMACCESS 796 xfer = fw_xfer_alloc(); 797 if(xfer == NULL) return; 798 799 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_DEVBUF, M_DONTWAIT); 800 if(fwb == NULL){ 801 fw_xfer_free(xfer); 802 } 803 xfer->act.hand = fw_vmaccess; 804 xfer->act_type = FWACT_XFER; 805 xfer->fc = fc; 806 xfer->sc = NULL; 807 808 fwb->start_hi = 0x2; 809 fwb->start_lo = 0; 810 fwb->addrlen = 0xffffffff; 811 fwb->xfer = xfer; 812 fw_bindadd(fc, fwb); 813#endif 814} 815 816/* 817 * To lookup binded process from IEEE1394 address. 818 */ 819struct fw_bind * 820fw_bindlookup(struct firewire_comm *fc, u_int32_t dest_hi, u_int32_t dest_lo) 821{ 822 struct fw_bind *tfw; 823 for(tfw = STAILQ_FIRST(&fc->binds) ; tfw != NULL ; 824 tfw = STAILQ_NEXT(tfw, fclist)){ 825 if(tfw->xfer->act_type != FWACT_NULL && 826 tfw->start_hi == dest_hi && 827 tfw->start_lo <= dest_lo && 828 (tfw->start_lo + tfw->addrlen) > dest_lo){ 829 return(tfw); 830 } 831 } 832 return(NULL); 833} 834 835/* 836 * To bind IEEE1394 address block to process. 837 */ 838int 839fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb) 840{ 841 struct fw_bind *tfw, *tfw2 = NULL; 842 int err = 0; 843 tfw = STAILQ_FIRST(&fc->binds); 844 if(tfw == NULL){ 845 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 846 goto out; 847 } 848 if((tfw->start_hi > fwb->start_hi) || 849 (tfw->start_hi == fwb->start_hi && 850 (tfw->start_lo > (fwb->start_lo + fwb->addrlen)))){ 851 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 852 goto out; 853 } 854 for(; tfw != NULL; tfw = STAILQ_NEXT(tfw, fclist)){ 855 if((tfw->start_hi < fwb->start_hi) || 856 (tfw->start_hi == fwb->start_hi && 857 (tfw->start_lo + tfw->addrlen) < fwb->start_lo)){ 858 tfw2 = STAILQ_NEXT(tfw, fclist); 859 if(tfw2 == NULL) 860 break; 861 if((tfw2->start_hi > fwb->start_hi) || 862 (tfw2->start_hi == fwb->start_hi && 863 tfw2->start_lo > (fwb->start_lo + fwb->addrlen))){ 864 break; 865 }else{ 866 err = EBUSY; 867 goto out; 868 } 869 } 870 } 871 if(tfw != NULL){ 872 STAILQ_INSERT_AFTER(&fc->binds, tfw, fwb, fclist); 873 }else{ 874 STAILQ_INSERT_TAIL(&fc->binds, fwb, fclist); 875 } 876out: 877 if(!err && fwb->xfer->act_type == FWACT_CH){ 878 STAILQ_INSERT_HEAD(&fc->ir[fwb->xfer->sub]->binds, fwb, chlist); 879 } 880 return err; 881} 882 883/* 884 * To free IEEE1394 address block. 885 */ 886int 887fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb) 888{ 889 int s; 890 891 s = splfw(); 892 /* shall we check the existance? */ 893 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist); 894 splx(s); 895 if (fwb->xfer) 896 fw_xfer_free(fwb->xfer); 897 898 return 0; 899} 900 901/* 902 * To free transaction label. 903 */ 904static void 905fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer) 906{ 907 struct tlabel *tl; 908 int s = splfw(); 909 910 for( tl = STAILQ_FIRST(&fc->tlabels[xfer->tl]); tl != NULL; 911 tl = STAILQ_NEXT(tl, link)){ 912 if(tl->xfer == xfer){ 913 STAILQ_REMOVE(&fc->tlabels[xfer->tl], tl, tlabel, link); 914 free(tl, M_DEVBUF); 915 splx(s); 916 return; 917 } 918 } 919 splx(s); 920 return; 921} 922 923/* 924 * To obtain XFER structure by transaction label. 925 */ 926static struct fw_xfer * 927fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel) 928{ 929 struct fw_xfer *xfer; 930 struct tlabel *tl; 931 int s = splfw(); 932 933 for( tl = STAILQ_FIRST(&fc->tlabels[tlabel]); tl != NULL; 934 tl = STAILQ_NEXT(tl, link)){ 935 if(tl->xfer->dst == node){ 936 xfer = tl->xfer; 937 splx(s); 938 return(xfer); 939 } 940 } 941 splx(s); 942 return(NULL); 943} 944 945/* 946 * To allocate IEEE1394 XFER structure. 947 */ 948struct fw_xfer * 949fw_xfer_alloc() 950{ 951 struct fw_xfer *xfer; 952 953 xfer = malloc(sizeof(struct fw_xfer), M_DEVBUF, M_DONTWAIT | M_ZERO); 954 if (xfer == NULL) 955 return xfer; 956 957 xfer->time = time_second; 958 xfer->sub = -1; 959 960 return xfer; 961} 962 963/* 964 * IEEE1394 XFER post process. 965 */ 966void 967fw_xfer_done(struct fw_xfer *xfer) 968{ 969 if (xfer->act.hand == NULL) 970 return; 971 972#if XFER_TIMEOUT 973 untimeout(fw_xfer_timeout, (void *)xfer, xfer->ch); 974#endif 975 976 if (xfer->fc->status != FWBUSRESET) 977 xfer->act.hand(xfer); 978 else { 979 printf("fw_xfer_done: pending\n"); 980 if (xfer->fc != NULL) 981 STAILQ_INSERT_TAIL(&xfer->fc->pending, xfer, link); 982 else 983 panic("fw_xfer_done: why xfer->fc is NULL?"); 984 } 985} 986 987/* 988 * To free IEEE1394 XFER structure. 989 */ 990void 991fw_xfer_free( struct fw_xfer* xfer) 992{ 993 int s; 994 if(xfer == NULL ) return; 995 if(xfer->state == FWXF_INQ){ 996 printf("fw_xfer_free FWXF_INQ\n"); 997 s = splfw(); 998 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link); 999 xfer->q->queued --; 1000 splx(s); 1001 } 1002 if(xfer->fc != NULL){ 1003 if(xfer->state == FWXF_START){ 1004#if 0 /* this could happen if we call fwohci_arcv() before fwohci_txd() */ 1005 printf("fw_xfer_free FWXF_START\n"); 1006#endif 1007 s = splfw(); 1008 xfer->q->drain(xfer->fc, xfer); 1009 splx(s); 1010 } 1011 } 1012 if(xfer->send.buf != NULL){ 1013 free(xfer->send.buf, M_DEVBUF); 1014 } 1015 if(xfer->recv.buf != NULL){ 1016 free(xfer->recv.buf, M_DEVBUF); 1017 } 1018 if(xfer->fc != NULL){ 1019 fw_tl_free(xfer->fc, xfer); 1020 } 1021 free(xfer, M_DEVBUF); 1022} 1023 1024/* 1025 * Callback for PHY configuration. 1026 */ 1027static void 1028fw_phy_config_callback(struct fw_xfer *xfer) 1029{ 1030#if 0 1031 printf("phy_config done state=%d resp=%d\n", 1032 xfer->state, xfer->resp); 1033#endif 1034 fw_xfer_free(xfer); 1035 /* XXX need bus reset ?? */ 1036 /* sc->fc->ibr(xfer->fc); LOOP */ 1037} 1038 1039/* 1040 * To configure PHY. 1041 */ 1042static void 1043fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count) 1044{ 1045 struct fw_xfer *xfer; 1046 struct fw_pkt *fp; 1047 1048 fc->status = FWBUSPHYCONF; 1049 1050 DELAY(100000); 1051 xfer = fw_xfer_alloc(); 1052 xfer->send.len = 12; 1053 xfer->send.off = 0; 1054 xfer->fc = fc; 1055 xfer->retry_req = fw_asybusy; 1056 xfer->act.hand = fw_phy_config_callback; 1057 1058 xfer->send.buf = malloc(sizeof(u_int32_t), 1059 M_DEVBUF, M_DONTWAIT | M_ZERO); 1060 fp = (struct fw_pkt *)xfer->send.buf; 1061 fp->mode.ld[1] = 0; 1062 if (root_node >= 0) 1063 fp->mode.ld[1] |= htonl((root_node & 0x3f) << 24 | 1 << 23); 1064 if (gap_count >= 0) 1065 fp->mode.ld[1] |= htonl(1 << 22 | (gap_count & 0x3f) << 16); 1066 fp->mode.ld[2] = ~fp->mode.ld[1]; 1067/* XXX Dangerous, how to pass PHY packet to device driver */ 1068 fp->mode.common.tcode |= FWTCODE_PHY; 1069 1070 if (firewire_debug) 1071 printf("send phy_config root_node=%d gap_count=%d\n", 1072 root_node, gap_count); 1073 fw_asyreq(fc, -1, xfer); 1074} 1075 1076#if 0 1077/* 1078 * Dump self ID. 1079 */ 1080static void 1081fw_print_sid(u_int32_t sid) 1082{ 1083 union fw_self_id *s; 1084 s = (union fw_self_id *) &sid; 1085 printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d" 1086 " p0:%d p1:%d p2:%d i:%d m:%d\n", 1087 s->p0.phy_id, s->p0.link_active, s->p0.gap_count, 1088 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender, 1089 s->p0.power_class, s->p0.port0, s->p0.port1, 1090 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets); 1091} 1092#endif 1093 1094/* 1095 * To receive self ID. 1096 */ 1097void fw_sidrcv(struct firewire_comm* fc, caddr_t buf, u_int len, u_int off) 1098{ 1099 u_int32_t *p, *sid = (u_int32_t *)(buf + off); 1100 union fw_self_id *self_id; 1101 u_int i, j, node, c_port = 0, i_branch = 0; 1102 1103 fc->sid_cnt = len /(sizeof(u_int32_t) * 2); 1104 fc->status = FWBUSINIT; 1105 fc->max_node = fc->nodeid & 0x3f; 1106 CSRARC(fc, NODE_IDS) = ((u_int32_t)fc->nodeid) << 16; 1107 fc->status = FWBUSCYMELECT; 1108 fc->topology_map->crc_len = 2; 1109 fc->topology_map->generation ++; 1110 fc->topology_map->self_id_count = 0; 1111 fc->topology_map->node_count = 0; 1112 fc->speed_map->generation ++; 1113 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4; 1114 self_id = &fc->topology_map->self_id[0]; 1115 for(i = 0; i < fc->sid_cnt; i ++){ 1116 if (sid[1] != ~sid[0]) { 1117 printf("fw_sidrcv: invalid self-id packet\n"); 1118 sid += 2; 1119 continue; 1120 } 1121 *self_id = *((union fw_self_id *)sid); 1122 fc->topology_map->crc_len++; 1123 if(self_id->p0.sequel == 0){ 1124 fc->topology_map->node_count ++; 1125 c_port = 0; 1126#if 0 1127 fw_print_sid(sid[0]); 1128#endif 1129 node = self_id->p0.phy_id; 1130 if(fc->max_node < node){ 1131 fc->max_node = self_id->p0.phy_id; 1132 } 1133 /* XXX I'm not sure this is the right speed_map */ 1134 fc->speed_map->speed[node][node] 1135 = self_id->p0.phy_speed; 1136 for (j = 0; j < node; j ++) { 1137 fc->speed_map->speed[j][node] 1138 = fc->speed_map->speed[node][j] 1139 = min(fc->speed_map->speed[j][j], 1140 self_id->p0.phy_speed); 1141 } 1142 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) && 1143 (self_id->p0.link_active && self_id->p0.contender)) { 1144 fc->irm = self_id->p0.phy_id; 1145 } 1146 if(self_id->p0.port0 >= 0x2){ 1147 c_port++; 1148 } 1149 if(self_id->p0.port1 >= 0x2){ 1150 c_port++; 1151 } 1152 if(self_id->p0.port2 >= 0x2){ 1153 c_port++; 1154 } 1155 } 1156 if(c_port > 2){ 1157 i_branch += (c_port - 2); 1158 } 1159 sid += 2; 1160 self_id++; 1161 fc->topology_map->self_id_count ++; 1162 } 1163 device_printf(fc->bdev, "%d nodes", fc->max_node + 1); 1164 /* CRC */ 1165 fc->topology_map->crc = fw_crc16( 1166 (u_int32_t *)&fc->topology_map->generation, 1167 fc->topology_map->crc_len * 4); 1168 fc->speed_map->crc = fw_crc16( 1169 (u_int32_t *)&fc->speed_map->generation, 1170 fc->speed_map->crc_len * 4); 1171 /* byteswap and copy to CSR */ 1172 p = (u_int32_t *)fc->topology_map; 1173 for (i = 0; i <= fc->topology_map->crc_len; i++) 1174 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++); 1175 p = (u_int32_t *)fc->speed_map; 1176 CSRARC(fc, SPED_MAP) = htonl(*p++); 1177 CSRARC(fc, SPED_MAP + 4) = htonl(*p++); 1178 /* don't byte-swap u_int8_t array */ 1179 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4); 1180 1181 fc->max_hop = fc->max_node - i_branch; 1182#if 1 1183 printf(", maxhop <= %d", fc->max_hop); 1184#endif 1185 1186 if(fc->irm == -1 ){ 1187 printf(", Not found IRM capable node"); 1188 }else{ 1189 printf(", cable IRM = %d", fc->irm); 1190 if (fc->irm == fc->nodeid) 1191 printf(" (me)\n"); 1192 else 1193 printf("\n"); 1194 } 1195 1196 if((fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f) ){ 1197 if(fc->irm == ((CSRARC(fc, NODE_IDS) >> 16 ) & 0x3f)){ 1198 fc->status = FWBUSMGRDONE; 1199 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm); 1200 }else{ 1201 fc->status = FWBUSMGRELECT; 1202 fc->bmrhandle = timeout((timeout_t *)fw_try_bmr,(void *)fc, hz / 8); 1203 } 1204 }else{ 1205 fc->status = FWBUSMGRDONE; 1206 device_printf(fc->bdev, "BMR = %x\n", 1207 CSRARC(fc, BUS_MGR_ID)); 1208 } 1209 free(buf, M_DEVBUF); 1210#if 1 1211 /* XXX optimize gap_count, if I am BMGR */ 1212 if(fc->irm == ((CSRARC(fc, NODE_IDS) >> 16 ) & 0x3f)){ 1213 fw_phy_config(fc, -1, gap_cnt[fc->max_hop]); 1214 } 1215#endif 1216#if 1 1217 callout_reset(&fc->busprobe_callout, hz/4, 1218 (void *)fw_bus_probe, (void *)fc); 1219#else 1220 fw_bus_probe(fc); 1221#endif 1222} 1223 1224/* 1225 * To probe devices on the IEEE1394 bus. 1226 */ 1227static void 1228fw_bus_probe(struct firewire_comm *fc) 1229{ 1230 int s; 1231 struct fw_device *fwdev, *next; 1232 1233 s = splfw(); 1234 fc->status = FWBUSEXPLORE; 1235 fc->retry_count = 0; 1236 1237/* 1238 * Invalidate all devices, just after bus reset. Devices 1239 * to be removed has not been seen longer time. 1240 */ 1241 for(fwdev = TAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1242 next = TAILQ_NEXT(fwdev, link); 1243 if(fwdev->status != FWDEVINVAL){ 1244 fwdev->status = FWDEVINVAL; 1245 fwdev->rcnt = 0; 1246 }else if(fwdev->rcnt < FW_MAXDEVRCNT){ 1247 fwdev->rcnt ++; 1248 }else{ 1249 TAILQ_REMOVE(&fc->devices, fwdev, link); 1250 free(fwdev, M_DEVBUF); 1251 } 1252 } 1253 fc->ongonode = 0; 1254 fc->ongoaddr = CSRROMOFF; 1255 fc->ongodev = NULL; 1256 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1257 fw_bus_explore(fc); 1258 splx(s); 1259} 1260 1261/* 1262 * To collect device informations on the IEEE1394 bus. 1263 */ 1264static void 1265fw_bus_explore(struct firewire_comm *fc ) 1266{ 1267 int err = 0; 1268 struct fw_device *fwdev, *tfwdev; 1269 u_int32_t addr; 1270 struct fw_xfer *xfer; 1271 struct fw_pkt *fp; 1272 1273 if(fc->status != FWBUSEXPLORE) 1274 return; 1275 1276loop: 1277 if(fc->ongonode == fc->nodeid) fc->ongonode++; 1278 1279 if(fc->ongonode > fc->max_node) goto done; 1280 if(fc->ongonode >= 0x3f) goto done; 1281 1282 /* check link */ 1283 /* XXX we need to check phy_id first */ 1284 if (!fc->topology_map->self_id[fc->ongonode].p0.link_active) { 1285 printf("fw_bus_explore: node %d link down\n", fc->ongonode); 1286 fc->ongonode++; 1287 goto loop; 1288 } 1289 1290 if(fc->ongoaddr <= CSRROMOFF && 1291 fc->ongoeui.hi == 0xffffffff && 1292 fc->ongoeui.lo == 0xffffffff ){ 1293 fc->ongoaddr = CSRROMOFF; 1294 addr = 0xf0000000 | fc->ongoaddr; 1295 }else if(fc->ongoeui.hi == 0xffffffff ){ 1296 fc->ongoaddr = CSRROMOFF + 0xc; 1297 addr = 0xf0000000 | fc->ongoaddr; 1298 }else if(fc->ongoeui.lo == 0xffffffff ){ 1299 fc->ongoaddr = CSRROMOFF + 0x10; 1300 addr = 0xf0000000 | fc->ongoaddr; 1301 }else if(fc->ongodev == NULL){ 1302 for(fwdev = TAILQ_FIRST(&fc->devices); fwdev != NULL; 1303 fwdev = TAILQ_NEXT(fwdev, link)){ 1304 if(fwdev->eui.hi == fc->ongoeui.hi && fwdev->eui.lo == fc->ongoeui.lo){ 1305 break; 1306 } 1307 } 1308 if(fwdev != NULL){ 1309 fwdev->dst = fc->ongonode; 1310 fwdev->status = FWDEVATTACHED; 1311 fc->ongonode++; 1312 fc->ongoaddr = CSRROMOFF; 1313 fc->ongodev = NULL; 1314 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1315 goto loop; 1316 } 1317 fwdev = malloc(sizeof(struct fw_device), M_DEVBUF, M_DONTWAIT); 1318 if(fwdev == NULL) 1319 return; 1320 fwdev->fc = fc; 1321 fwdev->rommax = 0; 1322 fwdev->dst = fc->ongonode; 1323 fwdev->eui.hi = fc->ongoeui.hi; fwdev->eui.lo = fc->ongoeui.lo; 1324 fwdev->status = FWDEVINIT; 1325#if 0 1326 fwdev->speed = CSRARC(fc, SPED_MAP + 8 + fc->ongonode / 4) 1327 >> ((3 - (fc->ongonode % 4)) * 8); 1328#else 1329 fwdev->speed = fc->speed_map->speed[fc->nodeid][fc->ongonode]; 1330#endif 1331 1332 tfwdev = TAILQ_FIRST(&fc->devices); 1333 while( tfwdev != NULL && 1334 (tfwdev->eui.hi > fwdev->eui.hi) && 1335 ((tfwdev->eui.hi == fwdev->eui.hi) && 1336 tfwdev->eui.lo > fwdev->eui.lo)){ 1337 tfwdev = TAILQ_NEXT( tfwdev, link); 1338 } 1339 if(tfwdev == NULL){ 1340 TAILQ_INSERT_TAIL(&fc->devices, fwdev, link); 1341 }else{ 1342 TAILQ_INSERT_BEFORE(tfwdev, fwdev, link); 1343 } 1344 1345 device_printf(fc->bdev, "New %s device ID:%08x%08x\n", 1346 linkspeed[fwdev->speed], 1347 fc->ongoeui.hi, fc->ongoeui.lo); 1348 1349 fc->ongodev = fwdev; 1350 fc->ongoaddr = CSRROMOFF; 1351 addr = 0xf0000000 | fc->ongoaddr; 1352 }else{ 1353 addr = 0xf0000000 | fc->ongoaddr; 1354 } 1355#if 0 1356 xfer = asyreqq(fc, FWSPD_S100, 0, 0, 1357 ((FWLOCALBUS | fc->ongonode) << 16) | 0xffff , addr, 1358 fw_bus_explore_callback); 1359 if(xfer == NULL) goto done; 1360#else 1361 xfer = fw_xfer_alloc(); 1362 if(xfer == NULL){ 1363 goto done; 1364 } 1365 xfer->send.len = 16; 1366 xfer->spd = 0; 1367 xfer->send.buf = malloc(16, M_DEVBUF, M_DONTWAIT); 1368 if(xfer->send.buf == NULL){ 1369 fw_xfer_free( xfer); 1370 return; 1371 } 1372 1373 xfer->send.off = 0; 1374 fp = (struct fw_pkt *)xfer->send.buf; 1375 fp->mode.rreqq.dest_hi = htons(0xffff); 1376 fp->mode.rreqq.tlrt = 0; 1377 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1378 fp->mode.rreqq.pri = 0; 1379 fp->mode.rreqq.src = 0; 1380 xfer->dst = FWLOCALBUS | fc->ongonode; 1381 fp->mode.rreqq.dst = htons(xfer->dst); 1382 fp->mode.rreqq.dest_lo = htonl(addr); 1383 xfer->act.hand = fw_bus_explore_callback; 1384 1385 err = fw_asyreq(fc, -1, xfer); 1386 if(err){ 1387 fw_xfer_free( xfer); 1388 return; 1389 } 1390#endif 1391 return; 1392done: 1393 /* fw_attach_devs */ 1394 fc->status = FWBUSEXPDONE; 1395 if (firewire_debug) 1396 printf("bus_explore done\n"); 1397 fw_attach_dev(fc); 1398 return; 1399 1400} 1401 1402/* Portable Async. request read quad */ 1403struct fw_xfer * 1404asyreqq(struct firewire_comm *fc, u_int8_t spd, u_int8_t tl, u_int8_t rt, 1405 u_int32_t addr_hi, u_int32_t addr_lo, 1406 void (*hand) __P((struct fw_xfer*))) 1407{ 1408 struct fw_xfer *xfer; 1409 struct fw_pkt *fp; 1410 int err; 1411 1412 xfer = fw_xfer_alloc(); 1413 if(xfer == NULL){ 1414 return NULL; 1415 } 1416 xfer->send.len = 16; 1417 xfer->spd = spd; /* XXX:min(spd, fc->spd) */ 1418 xfer->send.buf = malloc(16, M_DEVBUF, M_DONTWAIT); 1419 if(xfer->send.buf == NULL){ 1420 fw_xfer_free( xfer); 1421 return NULL; 1422 } 1423 1424 xfer->send.off = 0; 1425 fp = (struct fw_pkt *)xfer->send.buf; 1426 fp->mode.rreqq.dest_hi = htons(addr_hi & 0xffff); 1427 if(tl & FWP_TL_VALID){ 1428 fp->mode.rreqq.tlrt = (tl & 0x3f) << 2; 1429 }else{ 1430 fp->mode.rreqq.tlrt = 0; 1431 } 1432 fp->mode.rreqq.tlrt |= rt & 0x3; 1433 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1434 fp->mode.rreqq.pri = 0; 1435 fp->mode.rreqq.src = 0; 1436 xfer->dst = addr_hi >> 16; 1437 fp->mode.rreqq.dst = htons(xfer->dst); 1438 fp->mode.rreqq.dest_lo = htonl(addr_lo); 1439 xfer->act.hand = hand; 1440 1441 err = fw_asyreq(fc, -1, xfer); 1442 if(err){ 1443 fw_xfer_free( xfer); 1444 return NULL; 1445 } 1446 return xfer; 1447} 1448 1449/* 1450 * Callback for the IEEE1394 bus information collection. 1451 */ 1452static void 1453fw_bus_explore_callback(struct fw_xfer *xfer) 1454{ 1455 struct firewire_comm *fc; 1456 struct fw_pkt *sfp,*rfp; 1457 struct csrhdr *chdr; 1458 struct csrdir *csrd; 1459 struct csrreg *csrreg; 1460 u_int32_t offset; 1461 1462 1463 if(xfer == NULL) return; 1464 fc = xfer->fc; 1465 if(xfer->resp != 0){ 1466 printf("resp != 0: node=%d addr=0x%x\n", 1467 fc->ongonode, fc->ongoaddr); 1468 fc->retry_count++; 1469 goto nextnode; 1470 } 1471 1472 if(xfer->send.buf == NULL){ 1473 printf("send.buf == NULL: node=%d addr=0x%x\n", 1474 fc->ongonode, fc->ongoaddr); 1475 printf("send.buf == NULL\n"); 1476 fc->retry_count++; 1477 goto nextnode; 1478 } 1479 sfp = (struct fw_pkt *)xfer->send.buf; 1480 1481 if(xfer->recv.buf == NULL){ 1482 printf("recv.buf == NULL: node=%d addr=0x%x\n", 1483 fc->ongonode, fc->ongoaddr); 1484 fc->retry_count++; 1485 goto nextnode; 1486 } 1487 rfp = (struct fw_pkt *)xfer->recv.buf; 1488#if 0 1489 { 1490 u_int32_t *qld; 1491 int i; 1492 qld = (u_int32_t *)xfer->recv.buf; 1493 printf("len:%d\n", xfer->recv.len); 1494 for( i = 0 ; i <= xfer->recv.len && i < 32; i+= 4){ 1495 printf("0x%08x ", ntohl(rfp->mode.ld[i/4])); 1496 if((i % 16) == 15) printf("\n"); 1497 } 1498 if((i % 16) != 15) printf("\n"); 1499 } 1500#endif 1501 if(fc->ongodev == NULL){ 1502 if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 | CSRROMOFF))){ 1503 rfp->mode.rresq.data = ntohl(rfp->mode.rresq.data); 1504 chdr = (struct csrhdr *)(&rfp->mode.rresq.data); 1505/* If CSR is minimul confinguration, more investgation is not needed. */ 1506 if(chdr->info_len == 1){ 1507 goto nextnode; 1508 }else{ 1509 fc->ongoaddr = CSRROMOFF + 0xc; 1510 } 1511 }else if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 |(CSRROMOFF + 0xc)))){ 1512 fc->ongoeui.hi = ntohl(rfp->mode.rresq.data); 1513 fc->ongoaddr = CSRROMOFF + 0x10; 1514 }else if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 |(CSRROMOFF + 0x10)))){ 1515 fc->ongoeui.lo = ntohl(rfp->mode.rresq.data); 1516 if (fc->ongoeui.hi == 0 && fc->ongoeui.lo == 0) 1517 goto nextnode; 1518 fc->ongoaddr = CSRROMOFF; 1519 } 1520 }else{ 1521 fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4] = ntohl(rfp->mode.rresq.data); 1522 if(fc->ongoaddr > fc->ongodev->rommax){ 1523 fc->ongodev->rommax = fc->ongoaddr; 1524 } 1525 csrd = SLIST_FIRST(&fc->ongocsr); 1526 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1527 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1528 offset = CSRROMOFF; 1529 }else{ 1530 chdr = (struct csrhdr *)&fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]; 1531 offset = csrd->off; 1532 } 1533 if(fc->ongoaddr > (CSRROMOFF + 0x14) && fc->ongoaddr != offset){ 1534 csrreg = (struct csrreg *)&fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4]; 1535 if( csrreg->key == 0x81 || csrreg->key == 0xd1){ 1536 csrd = SLIST_FIRST(&fc->csrfree); 1537 if(csrd == NULL){ 1538 goto nextnode; 1539 }else{ 1540 csrd->ongoaddr = fc->ongoaddr; 1541 fc->ongoaddr += csrreg->val * 4; 1542 csrd->off = fc->ongoaddr; 1543 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1544 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1545 goto nextaddr; 1546 } 1547 } 1548 } 1549 fc->ongoaddr += 4; 1550 if(((fc->ongoaddr - offset)/4 > chdr->crc_len) && 1551 (fc->ongodev->rommax < 0x414)){ 1552 if(fc->ongodev->rommax <= 0x414){ 1553 csrd = SLIST_FIRST(&fc->csrfree); 1554 if(csrd == NULL) goto nextnode; 1555 csrd->off = fc->ongoaddr; 1556 csrd->ongoaddr = fc->ongoaddr; 1557 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1558 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1559 } 1560 goto nextaddr; 1561 } 1562 1563 while(((fc->ongoaddr - offset)/4 > chdr->crc_len)){ 1564 if(csrd == NULL){ 1565 goto nextnode; 1566 }; 1567 fc->ongoaddr = csrd->ongoaddr + 4; 1568 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1569 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1570 csrd = SLIST_FIRST(&fc->ongocsr); 1571 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1572 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1573 offset = CSRROMOFF; 1574 }else{ 1575 chdr = (struct csrhdr *)&(fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]); 1576 offset = csrd->off; 1577 } 1578 } 1579 if((fc->ongoaddr - CSRROMOFF) > CSRROMSIZE){ 1580 goto nextnode; 1581 } 1582 } 1583nextaddr: 1584 fw_xfer_free( xfer); 1585 fw_bus_explore(fc); 1586 return; 1587nextnode: 1588 fw_xfer_free( xfer); 1589 fc->ongonode++; 1590/* housekeeping work space */ 1591 fc->ongoaddr = CSRROMOFF; 1592 fc->ongodev = NULL; 1593 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1594 while((csrd = SLIST_FIRST(&fc->ongocsr)) != NULL){ 1595 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1596 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1597 } 1598 fw_bus_explore(fc); 1599 return; 1600} 1601 1602/* 1603 * To obtain CSR register values. 1604 */ 1605u_int32_t 1606getcsrdata(struct fw_device *fwdev, u_int8_t key) 1607{ 1608 int i; 1609 struct csrhdr *chdr; 1610 struct csrreg *creg; 1611 chdr = (struct csrhdr *)&fwdev->csrrom[0]; 1612 for( i = chdr->info_len + 4; i <= fwdev->rommax - CSRROMOFF; i+=4){ 1613 creg = (struct csrreg *)&fwdev->csrrom[i/4]; 1614 if(creg->key == key){ 1615 return (u_int32_t)creg->val; 1616 } 1617 } 1618 return 0; 1619} 1620 1621/* 1622 * To attach sub-devices layer onto IEEE1394 bus. 1623 */ 1624static void 1625fw_attach_dev(struct firewire_comm *fc) 1626{ 1627 struct fw_device *fwdev; 1628 struct fw_xfer *xfer; 1629 int i, err; 1630 device_t *devlistp; 1631 int devcnt; 1632 struct firewire_dev_comm *fdc; 1633 u_int32_t spec, ver; 1634 1635 for(fwdev = TAILQ_FIRST(&fc->devices); fwdev != NULL; 1636 fwdev = TAILQ_NEXT(fwdev, link)){ 1637 if(fwdev->status == FWDEVINIT){ 1638 spec = getcsrdata(fwdev, CSRKEY_SPEC); 1639 if(spec == 0) 1640 continue; 1641 ver = getcsrdata(fwdev, CSRKEY_VER); 1642 if(ver == 0) 1643 continue; 1644 fwdev->maxrec = (fwdev->csrrom[2] >> 12) & 0xf; 1645 1646 device_printf(fc->bdev, "Device "); 1647 switch(spec){ 1648 case CSRVAL_ANSIT10: 1649 switch(ver){ 1650 case CSRVAL_T10SBP2: 1651 printf("SBP-II"); 1652 break; 1653 default: 1654 break; 1655 } 1656 break; 1657 case CSRVAL_1394TA: 1658 switch(ver){ 1659 case CSR_PROTAVC: 1660 printf("AV/C"); 1661 break; 1662 case CSR_PROTCAL: 1663 printf("CAL"); 1664 break; 1665 case CSR_PROTEHS: 1666 printf("EHS"); 1667 break; 1668 case CSR_PROTHAVI: 1669 printf("HAVi"); 1670 break; 1671 case CSR_PROTCAM104: 1672 printf("1394 Cam 1.04"); 1673 break; 1674 case CSR_PROTCAM120: 1675 printf("1394 Cam 1.20"); 1676 break; 1677 case CSR_PROTCAM130: 1678 printf("1394 Cam 1.30"); 1679 break; 1680 case CSR_PROTDPP: 1681 printf("1394 Direct print"); 1682 break; 1683 case CSR_PROTIICP: 1684 printf("Industrial & Instrument"); 1685 break; 1686 default: 1687 printf("unknown 1394TA"); 1688 break; 1689 } 1690 break; 1691 default: 1692 printf("unknown spec"); 1693 break; 1694 } 1695 fwdev->status = FWDEVATTACHED; 1696 printf("\n"); 1697 } 1698 } 1699 err = device_get_children(fc->bdev, &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#if __FreeBSD_version >= 500000 1847 printf("Unknown service addr 0x%08x:0x%08x tcode=%x\n", 1848#else 1849 printf("Unknown service addr 0x%08x:0x%08lx tcode=%x\n", 1850#endif 1851 ntohs(fp->mode.rreqq.dest_hi), 1852 ntohl(fp->mode.rreqq.dest_lo), 1853 fp->mode.common.tcode); 1854 if (fc->status == FWBUSRESET) { 1855 printf("fw_rcv: cannot response(bus reset)!\n"); 1856 goto err; 1857 } 1858 xfer = fw_xfer_alloc(); 1859 if(xfer == NULL){ 1860 return; 1861 } 1862 xfer->spd = spd; 1863 xfer->send.buf = malloc(16, M_DEVBUF, M_DONTWAIT); 1864 resfp = (struct fw_pkt *)xfer->send.buf; 1865 switch(fp->mode.common.tcode){ 1866 case FWTCODE_WREQQ: 1867 case FWTCODE_WREQB: 1868 resfp->mode.hdr.tcode = FWTCODE_WRES; 1869 xfer->send.len = 12; 1870 break; 1871 case FWTCODE_RREQQ: 1872 resfp->mode.hdr.tcode = FWTCODE_RRESQ; 1873 xfer->send.len = 16; 1874 break; 1875 case FWTCODE_RREQB: 1876 resfp->mode.hdr.tcode = FWTCODE_RRESB; 1877 xfer->send.len = 16; 1878 break; 1879 case FWTCODE_LREQ: 1880 resfp->mode.hdr.tcode = FWTCODE_LRES; 1881 xfer->send.len = 16; 1882 break; 1883 } 1884 resfp->mode.hdr.dst = fp->mode.hdr.src; 1885 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt; 1886 resfp->mode.hdr.pri = fp->mode.hdr.pri; 1887 resfp->mode.rresb.rtcode = 7; 1888 resfp->mode.rresb.extcode = 0; 1889 resfp->mode.rresb.len = 0; 1890/* 1891 xfer->act.hand = fw_asy_callback; 1892*/ 1893 xfer->act.hand = fw_xfer_free; 1894 if(fw_asyreq(fc, -1, xfer)){ 1895 fw_xfer_free( xfer); 1896 return; 1897 } 1898 goto err; 1899 } 1900 switch(bind->xfer->act_type){ 1901 case FWACT_XFER: 1902 xfer = fw_xfer_alloc(); 1903 if(xfer == NULL) goto err; 1904 xfer->fc = bind->xfer->fc; 1905 xfer->sc = bind->xfer->sc; 1906 xfer->recv.buf = buf; 1907 xfer->recv.len = len; 1908 xfer->recv.off = off; 1909 xfer->spd = spd; 1910 xfer->act.hand = bind->xfer->act.hand; 1911 if (fc->status != FWBUSRESET) 1912 xfer->act.hand(xfer); 1913 else 1914 STAILQ_INSERT_TAIL(&fc->pending, xfer, link); 1915 return; 1916 break; 1917 case FWACT_CH: 1918 if(fc->ir[bind->xfer->sub]->queued >= 1919 fc->ir[bind->xfer->sub]->maxq){ 1920 device_printf(fc->bdev, 1921 "Discard a packet %x %d\n", 1922 bind->xfer->sub, 1923 fc->ir[bind->xfer->sub]->queued); 1924 goto err; 1925 } 1926 xfer = fw_xfer_alloc(); 1927 if(xfer == NULL) goto err; 1928 xfer->recv.buf = buf; 1929 xfer->recv.len = len; 1930 xfer->recv.off = off; 1931 xfer->spd = spd; 1932 s = splfw(); 1933 fc->ir[bind->xfer->sub]->queued++; 1934 STAILQ_INSERT_TAIL(&fc->ir[bind->xfer->sub]->q, xfer, link); 1935 splx(s); 1936 1937 wakeup((caddr_t)fc->ir[bind->xfer->sub]); 1938 1939 return; 1940 break; 1941 default: 1942 goto err; 1943 break; 1944 } 1945 break; 1946 case FWTCODE_STREAM: 1947 { 1948 struct fw_xferq *xferq; 1949 1950 xferq = fc->ir[sub]; 1951#if 0 1952 printf("stream rcv dma %d len %d off %d spd %d\n", 1953 sub, len, off, spd); 1954#endif 1955 if(xferq->queued >= xferq->maxq) { 1956 printf("receive queue is full\n"); 1957 goto err; 1958 } 1959 xfer = fw_xfer_alloc(); 1960 if(xfer == NULL) goto err; 1961 xfer->recv.buf = buf; 1962 xfer->recv.len = len; 1963 xfer->recv.off = off; 1964 xfer->spd = spd; 1965 s = splfw(); 1966 xferq->queued++; 1967 STAILQ_INSERT_TAIL(&xferq->q, xfer, link); 1968 splx(s); 1969 sc = device_get_softc(fc->bdev); 1970#if __FreeBSD_version >= 500000 1971 if (SEL_WAITING(&xferq->rsel)) 1972#else 1973 if (&xferq->rsel.si_pid != 0) 1974#endif 1975 selwakeup(&xferq->rsel); 1976 if (xferq->flag & FWXFERQ_WAKEUP) { 1977 xferq->flag &= ~FWXFERQ_WAKEUP; 1978 wakeup((caddr_t)xferq); 1979 } 1980 if (xferq->flag & FWXFERQ_HANDLER) { 1981 xferq->hand(xferq); 1982 } 1983 return; 1984 break; 1985 } 1986 default: 1987 printf("fw_rcv: unknow tcode\n"); 1988 break; 1989 } 1990err: 1991 free(buf, M_DEVBUF); 1992} 1993 1994/* 1995 * Post process for Bus Manager election process. 1996 */ 1997static void 1998fw_try_bmr_callback(struct fw_xfer *xfer) 1999{ 2000 struct fw_pkt *sfp,*rfp; 2001 struct firewire_comm *fc; 2002 2003 if(xfer == NULL) return; 2004 fc = xfer->fc; 2005 if(xfer->resp != 0){ 2006 goto error; 2007 } 2008 2009 if(xfer->send.buf == NULL){ 2010 goto error; 2011 } 2012 sfp = (struct fw_pkt *)xfer->send.buf; 2013 2014 if(xfer->recv.buf == NULL){ 2015 goto error; 2016 } 2017 rfp = (struct fw_pkt *)xfer->recv.buf; 2018 CSRARC(fc, BUS_MGR_ID) 2019 = fc->set_bmr(fc, ntohl(rfp->mode.lres.payload[0]) & 0x3f); 2020 device_printf(fc->bdev, "new bus manager %d ", 2021 CSRARC(fc, BUS_MGR_ID)); 2022 if((htonl(rfp->mode.lres.payload[0]) & 0x3f) == fc->nodeid){ 2023 printf("(me)\n"); 2024/* If I am bus manager, optimize gapcount */ 2025 if(fc->max_hop <= MAX_GAPHOP ){ 2026 fw_phy_config(fc, -1, gap_cnt[fc->max_hop]); 2027 } 2028 }else{ 2029 printf("\n"); 2030 } 2031error: 2032 fw_xfer_free(xfer); 2033} 2034 2035/* 2036 * To candidate Bus Manager election process. 2037 */ 2038void 2039fw_try_bmr(void *arg) 2040{ 2041 struct fw_xfer *xfer; 2042 struct firewire_comm *fc = (struct firewire_comm *)arg; 2043 struct fw_pkt *fp; 2044 int err = 0; 2045 2046 xfer = fw_xfer_alloc(); 2047 if(xfer == NULL){ 2048 return; 2049 } 2050 xfer->send.len = 24; 2051 xfer->spd = 0; 2052 xfer->send.buf = malloc(24, M_DEVBUF, M_DONTWAIT); 2053 if(xfer->send.buf == NULL){ 2054 fw_xfer_free( xfer); 2055 return; 2056 } 2057 2058 fc->status = FWBUSMGRELECT; 2059 2060 xfer->send.off = 0; 2061 fp = (struct fw_pkt *)xfer->send.buf; 2062 fp->mode.lreq.dest_hi = htons(0xffff); 2063 fp->mode.lreq.tlrt = 0; 2064 fp->mode.lreq.tcode = FWTCODE_LREQ; 2065 fp->mode.lreq.pri = 0; 2066 fp->mode.lreq.src = 0; 2067 fp->mode.lreq.len = htons(8); 2068 fp->mode.lreq.extcode = htons(FW_LREQ_CMPSWAP); 2069 xfer->dst = FWLOCALBUS | fc->irm; 2070 fp->mode.lreq.dst = htons(xfer->dst); 2071 fp->mode.lreq.dest_lo = htonl(0xf0000000 | BUS_MGR_ID); 2072 fp->mode.lreq.payload[0] = 0x3f; 2073 fp->mode.lreq.payload[1] = fc->nodeid; 2074 xfer->act_type = FWACT_XFER; 2075 xfer->act.hand = fw_try_bmr_callback; 2076 2077 err = fw_asyreq(fc, -1, xfer); 2078 if(err){ 2079 fw_xfer_free( xfer); 2080 return; 2081 } 2082 return; 2083} 2084 2085#ifdef FW_VMACCESS 2086/* 2087 * Software implementation for physical memory block access. 2088 * XXX:Too slow, usef for debug purpose only. 2089 */ 2090static void 2091fw_vmaccess(struct fw_xfer *xfer){ 2092 struct fw_pkt *rfp, *sfp = NULL; 2093 u_int32_t *ld = (u_int32_t *)(xfer->recv.buf + xfer->recv.off); 2094 2095 printf("vmaccess spd:%2x len:%03x %d data:%08x %08x %08x %08x\n", 2096 xfer->spd, xfer->recv.len, xfer->recv.off, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 2097 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 2098 if(xfer->resp != 0){ 2099 fw_xfer_free( xfer); 2100 return; 2101 } 2102 if(xfer->recv.buf == NULL){ 2103 fw_xfer_free( xfer); 2104 return; 2105 } 2106 rfp = (struct fw_pkt *)xfer->recv.buf; 2107 switch(rfp->mode.hdr.tcode){ 2108 /* XXX need fix for 64bit arch */ 2109 case FWTCODE_WREQB: 2110 xfer->send.buf = malloc(12, M_DEVBUF, M_NOWAIT); 2111 xfer->send.len = 12; 2112 sfp = (struct fw_pkt *)xfer->send.buf; 2113 bcopy(rfp->mode.wreqb.payload, 2114 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len)); 2115 sfp->mode.wres.tcode = FWTCODE_WRES; 2116 sfp->mode.wres.rtcode = 0; 2117 break; 2118 case FWTCODE_WREQQ: 2119 xfer->send.buf = malloc(12, M_DEVBUF, M_NOWAIT); 2120 xfer->send.len = 12; 2121 sfp->mode.wres.tcode = FWTCODE_WRES; 2122 *((u_int32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data; 2123 sfp->mode.wres.rtcode = 0; 2124 break; 2125 case FWTCODE_RREQB: 2126 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_DEVBUF, M_NOWAIT); 2127 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len); 2128 sfp = (struct fw_pkt *)xfer->send.buf; 2129 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo), 2130 sfp->mode.rresb.payload, (u_int16_t)ntohs(rfp->mode.rreqb.len)); 2131 sfp->mode.rresb.tcode = FWTCODE_RRESB; 2132 sfp->mode.rresb.len = rfp->mode.rreqb.len; 2133 sfp->mode.rresb.rtcode = 0; 2134 sfp->mode.rresb.extcode = 0; 2135 break; 2136 case FWTCODE_RREQQ: 2137 xfer->send.buf = malloc(16, M_DEVBUF, M_NOWAIT); 2138 xfer->send.len = 16; 2139 sfp = (struct fw_pkt *)xfer->send.buf; 2140 sfp->mode.rresq.data = *(u_int32_t *)(ntohl(rfp->mode.rreqq.dest_lo)); 2141 sfp->mode.wres.tcode = FWTCODE_RRESQ; 2142 sfp->mode.rresb.rtcode = 0; 2143 break; 2144 default: 2145 fw_xfer_free( xfer); 2146 return; 2147 } 2148 xfer->send.off = 0; 2149 sfp->mode.hdr.dst = rfp->mode.hdr.src; 2150 xfer->dst = ntohs(rfp->mode.hdr.src); 2151 xfer->act.hand = fw_xfer_free; 2152 xfer->retry_req = fw_asybusy; 2153 2154 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt; 2155 sfp->mode.hdr.pri = 0; 2156 2157 fw_asyreq(xfer->fc, -1, xfer); 2158/**/ 2159 return; 2160} 2161#endif 2162 2163/* 2164 * CRC16 check-sum for IEEE1394 register blocks. 2165 */ 2166u_int16_t 2167fw_crc16(u_int32_t *ptr, u_int32_t len){ 2168 u_int32_t i, sum, crc = 0; 2169 int shift; 2170 len = (len + 3) & ~3; 2171 for(i = 0 ; i < len ; i+= 4){ 2172 for( shift = 28 ; shift >= 0 ; shift -= 4){ 2173 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf; 2174 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum; 2175 } 2176 crc &= 0xffff; 2177 } 2178 return((u_int16_t) crc); 2179} 2180 2181DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,0,0); 2182MODULE_VERSION(firewire, 1); 2183