1 /* 2 * Copyright (c) 1998-2002 Katsushi Kobayashi and Hidetoshi Shimokawa 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the acknowledgement as bellow: 15 * 16 * This product includes software developed by K. Kobayashi and H. Shimokawa 17 * 18 * 4. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 23 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 24 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 25 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 26 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 27 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 29 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 30 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 31 * POSSIBILITY OF SUCH DAMAGE. 32 * 33 * $FreeBSD$ 34 * 35 */ 36 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/types.h> 40 #include <sys/mbuf.h> 41 #include <sys/socket.h> 42 #include <sys/socketvar.h> 43 44 #include <sys/kernel.h> 45 #include <sys/malloc.h> 46 #include <sys/conf.h> 47 #include <sys/uio.h> 48 #include <sys/sysctl.h> 49 50 #include <machine/cpufunc.h> /* for rdtsc proto for clock.h below */ 51 #include <machine/clock.h> 52 53 #include <sys/bus.h> /* used by smbus and newbus */ 54 55 #include <dev/firewire/firewire.h> 56 #include <dev/firewire/firewirereg.h> 57 #include <dev/firewire/fwmem.h> 58 #include <dev/firewire/iec13213.h> 59 #include <dev/firewire/iec68113.h> 60 61 int firewire_debug=0, try_bmr=1; 62 SYSCTL_INT(_debug, OID_AUTO, firewire_debug, CTLFLAG_RW, &firewire_debug, 0, 63 "FireWire driver debug flag"); 64 SYSCTL_NODE(_hw, OID_AUTO, firewire, CTLFLAG_RD, 0, "FireWire Subsystem"); 65 SYSCTL_INT(_hw_firewire, OID_AUTO, try_bmr, CTLFLAG_RW, &try_bmr, 0, 66 "Try to be a bus manager"); 67 68 MALLOC_DEFINE(M_FW, "firewire", "FireWire"); 69 70 #define FW_MAXASYRTY 4 71 #define FW_MAXDEVRCNT 4 72 73 #define XFER_TIMEOUT 0 74 75 devclass_t firewire_devclass; 76 77 static int firewire_match __P((device_t)); 78 static int firewire_attach __P((device_t)); 79 static int firewire_detach __P((device_t)); 80 #if 0 81 static int firewire_shutdown __P((device_t)); 82 #endif 83 static device_t firewire_add_child __P((device_t, int, const char *, int)); 84 static void fw_try_bmr __P((void *)); 85 static void fw_try_bmr_callback __P((struct fw_xfer *)); 86 static void fw_asystart __P((struct fw_xfer *)); 87 static int fw_get_tlabel __P((struct firewire_comm *, struct fw_xfer *)); 88 static void fw_bus_probe __P((struct firewire_comm *)); 89 static void fw_bus_explore __P((struct firewire_comm *)); 90 static void fw_bus_explore_callback __P((struct fw_xfer *)); 91 static void fw_attach_dev __P((struct firewire_comm *)); 92 #ifdef FW_VMACCESS 93 static void fw_vmaccess __P((struct fw_xfer *)); 94 #endif 95 struct fw_xfer *asyreqq __P((struct firewire_comm *, u_int8_t, u_int8_t, u_int8_t, 96 u_int32_t, u_int32_t, void (*)__P((struct fw_xfer *)))); 97 static int fw_bmr __P((struct firewire_comm *)); 98 99 static device_method_t firewire_methods[] = { 100 /* Device interface */ 101 DEVMETHOD(device_probe, firewire_match), 102 DEVMETHOD(device_attach, firewire_attach), 103 DEVMETHOD(device_detach, firewire_detach), 104 DEVMETHOD(device_suspend, bus_generic_suspend), 105 DEVMETHOD(device_resume, bus_generic_resume), 106 DEVMETHOD(device_shutdown, bus_generic_shutdown), 107 108 /* Bus interface */ 109 DEVMETHOD(bus_add_child, firewire_add_child), 110 DEVMETHOD(bus_print_child, bus_generic_print_child), 111 112 { 0, 0 } 113 }; 114 char linkspeed[7][0x10]={"S100","S200","S400","S800","S1600","S3200","Unknown"}; 115 116 #define MAX_GAPHOP 16 117 u_int gap_cnt[] = {1, 1, 4, 6, 9, 12, 14, 17, 118 20, 23, 25, 28, 31, 33, 36, 39, 42}; 119 120 extern struct cdevsw firewire_cdevsw; 121 122 static driver_t firewire_driver = { 123 "firewire", 124 firewire_methods, 125 sizeof(struct firewire_softc), 126 }; 127 128 /* 129 * Lookup fwdev by node id. 130 */ 131 struct fw_device * 132 fw_noderesolve_nodeid(struct firewire_comm *fc, int dst) 133 { 134 struct fw_device *fwdev; 135 int s; 136 137 s = splfw(); 138 STAILQ_FOREACH(fwdev, &fc->devices, link) 139 if (fwdev->dst == dst) 140 break; 141 splx(s); 142 143 if(fwdev == NULL) return NULL; 144 if(fwdev->status == FWDEVINVAL) return NULL; 145 return fwdev; 146 } 147 148 /* 149 * Lookup fwdev by EUI64. 150 */ 151 struct fw_device * 152 fw_noderesolve_eui64(struct firewire_comm *fc, struct fw_eui64 eui) 153 { 154 struct fw_device *fwdev; 155 int s; 156 157 s = splfw(); 158 STAILQ_FOREACH(fwdev, &fc->devices, link) 159 if (FW_EUI64_EQUAL(fwdev->eui, eui)) 160 break; 161 splx(s); 162 163 if(fwdev == NULL) return NULL; 164 if(fwdev->status == FWDEVINVAL) return NULL; 165 return fwdev; 166 } 167 168 /* 169 * Async. request procedure for userland application. 170 */ 171 int 172 fw_asyreq(struct firewire_comm *fc, int sub, struct fw_xfer *xfer) 173 { 174 int err = 0; 175 struct fw_xferq *xferq; 176 int tl = 0, len; 177 struct fw_pkt *fp; 178 int tcode; 179 struct tcode_info *info; 180 181 if(xfer == NULL) return EINVAL; 182 if(xfer->send.len > MAXREC(fc->maxrec)){ 183 printf("send.len > maxrec\n"); 184 return EINVAL; 185 } 186 if(xfer->act.hand == NULL){ 187 printf("act.hand == NULL\n"); 188 return EINVAL; 189 } 190 fp = (struct fw_pkt *)xfer->send.buf; 191 192 tcode = fp->mode.common.tcode & 0xf; 193 info = &fc->tcode[tcode]; 194 if (info->flag == 0) { 195 printf("invalid tcode=%d\n", tcode); 196 return EINVAL; 197 } 198 if (info->flag & FWTI_REQ) 199 xferq = fc->atq; 200 else 201 xferq = fc->ats; 202 len = info->hdr_len; 203 if (info->flag & FWTI_BLOCK_STR) 204 len += ntohs(fp->mode.stream.len); 205 else if (info->flag & FWTI_BLOCK_ASY) 206 len += ntohs(fp->mode.rresb.len); 207 if( len > xfer->send.len ){ 208 printf("len(%d) > send.len(%d) (tcode=%d)\n", 209 len, xfer->send.len, tcode); 210 return EINVAL; 211 } 212 xfer->send.len = len; 213 214 if(xferq->start == NULL){ 215 printf("xferq->start == NULL\n"); 216 return EINVAL; 217 } 218 if(!(xferq->queued < xferq->maxq)){ 219 device_printf(fc->bdev, "Discard a packet (queued=%d)\n", 220 xferq->queued); 221 return EINVAL; 222 } 223 224 225 if (info->flag & FWTI_TLABEL) { 226 if((tl = fw_get_tlabel(fc, xfer)) == -1 ) 227 return EIO; 228 fp->mode.hdr.tlrt = tl << 2; 229 } 230 231 xfer->tl = tl; 232 xfer->tcode = tcode; 233 xfer->resp = 0; 234 xfer->fc = fc; 235 xfer->q = xferq; 236 xfer->act_type = FWACT_XFER; 237 xfer->retry_req = fw_asybusy; 238 239 fw_asystart(xfer); 240 return err; 241 } 242 /* 243 * Wakeup blocked process. 244 */ 245 void 246 fw_asy_callback(struct fw_xfer *xfer){ 247 wakeup(xfer); 248 return; 249 } 250 /* 251 * Postpone to later retry. 252 */ 253 void fw_asybusy(struct fw_xfer *xfer){ 254 #if 1 255 printf("fw_asybusy\n"); 256 #endif 257 #if XFER_TIMEOUT 258 untimeout(fw_xfer_timeout, (void *)xfer, xfer->ch); 259 #endif 260 /* 261 xfer->ch = timeout((timeout_t *)fw_asystart, (void *)xfer, 20000); 262 */ 263 DELAY(20000); 264 fw_asystart(xfer); 265 return; 266 } 267 #if XFER_TIMEOUT 268 /* 269 * Post timeout for async. request. 270 */ 271 void 272 fw_xfer_timeout(void *arg) 273 { 274 int s; 275 struct fw_xfer *xfer; 276 277 xfer = (struct fw_xfer *)arg; 278 printf("fw_xfer_timeout status=%d resp=%d\n", xfer->state, xfer->resp); 279 /* XXX set error code */ 280 s = splfw(); 281 xfer->act.hand(xfer); 282 splx(s); 283 } 284 #endif 285 /* 286 * Async. request with given xfer structure. 287 */ 288 static void 289 fw_asystart(struct fw_xfer *xfer) 290 { 291 struct firewire_comm *fc = xfer->fc; 292 int s; 293 if(xfer->retry++ >= fc->max_asyretry){ 294 xfer->resp = EBUSY; 295 xfer->state = FWXF_BUSY; 296 xfer->act.hand(xfer); 297 return; 298 } 299 #if 0 /* XXX allow bus explore packets only after bus rest */ 300 if (fc->status < FWBUSEXPLORE) { 301 xfer->resp = EAGAIN; 302 xfer->state = FWXF_BUSY; 303 if (xfer->act.hand != NULL) 304 xfer->act.hand(xfer); 305 return; 306 } 307 #endif 308 s = splfw(); 309 xfer->state = FWXF_INQ; 310 STAILQ_INSERT_TAIL(&xfer->q->q, xfer, link); 311 xfer->q->queued ++; 312 splx(s); 313 /* XXX just queue for mbuf */ 314 if (xfer->mbuf == NULL) 315 xfer->q->start(fc); 316 #if XFER_TIMEOUT 317 if (xfer->act.hand != NULL) 318 xfer->ch = timeout(fw_xfer_timeout, (void *)xfer, hz); 319 #endif 320 return; 321 } 322 323 static int 324 firewire_match( device_t dev ) 325 { 326 device_set_desc(dev, "IEEE1394(FireWire) bus"); 327 return -140; 328 } 329 330 /* 331 * The attach routine. 332 */ 333 static int 334 firewire_attach( device_t dev ) 335 { 336 int i, unitmask, mn; 337 struct firewire_softc *sc = device_get_softc(dev); 338 device_t pa = device_get_parent(dev); 339 struct firewire_comm *fc; 340 dev_t d; 341 342 fc = (struct firewire_comm *)device_get_softc(pa); 343 sc->fc = fc; 344 345 unitmask = UNIT2MIN(device_get_unit(dev)); 346 347 if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA; 348 for ( i = 0 ; i < fc->nisodma ; i++ ){ 349 mn = unitmask | i; 350 /* XXX device name should be improved */ 351 d = make_dev(&firewire_cdevsw, unit2minor(mn), 352 UID_ROOT, GID_OPERATOR, 0660, 353 "fw%x", mn); 354 #if __FreeBSD_version >= 500000 355 if (i == 0) 356 sc->dev = d; 357 else 358 dev_depends(sc->dev, d); 359 #else 360 sc->dev[i] = d; 361 #endif 362 } 363 d = make_dev(&firewire_cdevsw, unit2minor(unitmask | FWMEM_FLAG), 364 UID_ROOT, GID_OPERATOR, 0660, 365 "fwmem%d", device_get_unit(dev)); 366 #if __FreeBSD_version >= 500000 367 dev_depends(sc->dev, d); 368 #else 369 sc->dev[i] = d; 370 #endif 371 #if __FreeBSD_version >= 500000 372 #define CALLOUT_INIT(x) callout_init(x, 0 /* mpsafe */) 373 #else 374 #define CALLOUT_INIT(x) callout_init(x) 375 #endif 376 CALLOUT_INIT(&sc->fc->timeout_callout); 377 CALLOUT_INIT(&sc->fc->bmr_callout); 378 CALLOUT_INIT(&sc->fc->retry_probe_callout); 379 CALLOUT_INIT(&sc->fc->busprobe_callout); 380 381 callout_reset(&sc->fc->timeout_callout, hz * 10, 382 (void *)sc->fc->timeout, (void *)sc->fc); 383 384 /* Locate our children */ 385 bus_generic_probe(dev); 386 387 /* launch attachement of the added children */ 388 bus_generic_attach(dev); 389 390 /* bus_reset */ 391 fc->ibr(fc); 392 393 return 0; 394 } 395 396 /* 397 * Attach it as child. 398 */ 399 static device_t 400 firewire_add_child(device_t dev, int order, const char *name, int unit) 401 { 402 device_t child; 403 struct firewire_softc *sc; 404 405 sc = (struct firewire_softc *)device_get_softc(dev); 406 child = device_add_child(dev, name, unit); 407 if (child) { 408 device_set_ivars(child, sc->fc); 409 device_probe_and_attach(child); 410 } 411 412 return child; 413 } 414 415 /* 416 * Dettach it. 417 */ 418 static int 419 firewire_detach( device_t dev ) 420 { 421 struct firewire_softc *sc; 422 423 sc = (struct firewire_softc *)device_get_softc(dev); 424 425 #if __FreeBSD_version >= 500000 426 destroy_dev(sc->dev); 427 #else 428 { 429 int j; 430 for (j = 0 ; j < sc->fc->nisodma + 1; j++) 431 destroy_dev(sc->dev[j]); 432 } 433 #endif 434 /* XXX xfree_free and untimeout on all xfers */ 435 callout_stop(&sc->fc->timeout_callout); 436 callout_stop(&sc->fc->bmr_callout); 437 callout_stop(&sc->fc->retry_probe_callout); 438 callout_stop(&sc->fc->busprobe_callout); 439 free(sc->fc->topology_map, M_FW); 440 free(sc->fc->speed_map, M_FW); 441 bus_generic_detach(dev); 442 return(0); 443 } 444 #if 0 445 static int 446 firewire_shutdown( device_t dev ) 447 { 448 return 0; 449 } 450 #endif 451 452 /* 453 * Called after bus reset. 454 */ 455 void 456 fw_busreset(struct firewire_comm *fc) 457 { 458 int i; 459 struct fw_xfer *xfer; 460 461 switch(fc->status){ 462 case FWBUSMGRELECT: 463 callout_stop(&fc->bmr_callout); 464 break; 465 default: 466 break; 467 } 468 fc->status = FWBUSRESET; 469 /* XXX: discard all queued packet */ 470 while((xfer = STAILQ_FIRST(&fc->atq->q)) != NULL){ 471 STAILQ_REMOVE_HEAD(&fc->atq->q, link); 472 xfer->resp = EAGAIN; 473 switch(xfer->act_type){ 474 case FWACT_XFER: 475 fw_xfer_done(xfer); 476 break; 477 default: 478 break; 479 } 480 fw_xfer_free( xfer); 481 } 482 while((xfer = STAILQ_FIRST(&fc->ats->q)) != NULL){ 483 STAILQ_REMOVE_HEAD(&fc->ats->q, link); 484 xfer->resp = EAGAIN; 485 switch(xfer->act_type){ 486 case FWACT_XFER: 487 fw_xfer_done(xfer); 488 default: 489 break; 490 } 491 fw_xfer_free( xfer); 492 } 493 for(i = 0; i < fc->nisodma; i++) 494 while((xfer = STAILQ_FIRST(&fc->it[i]->q)) != NULL){ 495 STAILQ_REMOVE_HEAD(&fc->it[i]->q, link); 496 xfer->resp = 0; 497 switch(xfer->act_type){ 498 case FWACT_XFER: 499 fw_xfer_done(xfer); 500 break; 501 default: 502 break; 503 } 504 fw_xfer_free( xfer); 505 } 506 507 CSRARC(fc, STATE_CLEAR) 508 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 509 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 510 CSRARC(fc, NODE_IDS) = 0x3f; 511 512 CSRARC(fc, TOPO_MAP + 8) = 0; 513 fc->irm = -1; 514 515 fc->max_node = -1; 516 517 for(i = 2; i < 0x100/4 - 2 ; i++){ 518 CSRARC(fc, SPED_MAP + i * 4) = 0; 519 } 520 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 521 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 522 CSRARC(fc, RESET_START) = 0; 523 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0; 524 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19; 525 CSRARC(fc, CYCLE_TIME) = 0x0; 526 CSRARC(fc, BUS_TIME) = 0x0; 527 CSRARC(fc, BUS_MGR_ID) = 0x3f; 528 CSRARC(fc, BANDWIDTH_AV) = 4915; 529 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff; 530 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff; 531 CSRARC(fc, IP_CHANNELS) = (1 << 31); 532 533 CSRARC(fc, CONF_ROM) = 0x04 << 24; 534 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */ 535 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 | 536 1 << 28 | 0xff << 16 | 0x09 << 8; 537 CSRARC(fc, CONF_ROM + 0xc) = 0; 538 539 /* DV depend CSRs see blue book */ 540 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON; 541 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON; 542 543 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 ); 544 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 545 } 546 547 /* Call once after reboot */ 548 void fw_init(struct firewire_comm *fc) 549 { 550 int i; 551 struct csrdir *csrd; 552 #ifdef FW_VMACCESS 553 struct fw_xfer *xfer; 554 struct fw_bind *fwb; 555 #endif 556 557 fc->max_asyretry = FW_MAXASYRTY; 558 559 fc->arq->queued = 0; 560 fc->ars->queued = 0; 561 fc->atq->queued = 0; 562 fc->ats->queued = 0; 563 564 fc->arq->psize = PAGE_SIZE; 565 fc->ars->psize = PAGE_SIZE; 566 fc->atq->psize = 0; 567 fc->ats->psize = 0; 568 569 570 fc->arq->buf = NULL; 571 fc->ars->buf = NULL; 572 fc->atq->buf = NULL; 573 fc->ats->buf = NULL; 574 575 fc->arq->flag = FWXFERQ_PACKET; 576 fc->ars->flag = FWXFERQ_PACKET; 577 fc->atq->flag = FWXFERQ_PACKET; 578 fc->ats->flag = FWXFERQ_PACKET; 579 580 STAILQ_INIT(&fc->atq->q); 581 STAILQ_INIT(&fc->ats->q); 582 583 for( i = 0 ; i < fc->nisodma ; i ++ ){ 584 fc->it[i]->queued = 0; 585 fc->ir[i]->queued = 0; 586 587 fc->it[i]->start = NULL; 588 fc->ir[i]->start = NULL; 589 590 fc->it[i]->buf = NULL; 591 fc->ir[i]->buf = NULL; 592 593 fc->it[i]->flag = FWXFERQ_STREAM; 594 fc->ir[i]->flag = FWXFERQ_STREAM; 595 596 STAILQ_INIT(&fc->it[i]->q); 597 STAILQ_INIT(&fc->ir[i]->q); 598 599 STAILQ_INIT(&fc->it[i]->binds); 600 STAILQ_INIT(&fc->ir[i]->binds); 601 } 602 603 fc->arq->maxq = FWMAXQUEUE; 604 fc->ars->maxq = FWMAXQUEUE; 605 fc->atq->maxq = FWMAXQUEUE; 606 fc->ats->maxq = FWMAXQUEUE; 607 608 for( i = 0 ; i < fc->nisodma ; i++){ 609 fc->ir[i]->maxq = FWMAXQUEUE; 610 fc->it[i]->maxq = FWMAXQUEUE; 611 } 612 /* Initialize csr registers */ 613 fc->topology_map = (struct fw_topology_map *)malloc( 614 sizeof(struct fw_topology_map), 615 M_FW, M_NOWAIT | M_ZERO); 616 fc->speed_map = (struct fw_speed_map *)malloc( 617 sizeof(struct fw_speed_map), 618 M_FW, M_NOWAIT | M_ZERO); 619 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16; 620 CSRARC(fc, TOPO_MAP + 4) = 1; 621 CSRARC(fc, SPED_MAP) = 0x3f1 << 16; 622 CSRARC(fc, SPED_MAP + 4) = 1; 623 624 STAILQ_INIT(&fc->devices); 625 STAILQ_INIT(&fc->pending); 626 627 /* Initialize csr ROM work space */ 628 SLIST_INIT(&fc->ongocsr); 629 SLIST_INIT(&fc->csrfree); 630 for( i = 0 ; i < FWMAXCSRDIR ; i++){ 631 csrd = (struct csrdir *) malloc(sizeof(struct csrdir), M_FW,M_NOWAIT); 632 if(csrd == NULL) break; 633 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 634 } 635 636 /* Initialize Async handlers */ 637 STAILQ_INIT(&fc->binds); 638 for( i = 0 ; i < 0x40 ; i++){ 639 STAILQ_INIT(&fc->tlabels[i]); 640 } 641 642 /* DV depend CSRs see blue book */ 643 #if 0 644 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */ 645 CSRARC(fc, oPCR) = 0x8000007a; 646 for(i = 4 ; i < 0x7c/4 ; i+=4){ 647 CSRARC(fc, i + oPCR) = 0x8000007a; 648 } 649 650 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */ 651 CSRARC(fc, iPCR) = 0x803f0000; 652 for(i = 4 ; i < 0x7c/4 ; i+=4){ 653 CSRARC(fc, i + iPCR) = 0x0; 654 } 655 #endif 656 657 658 #ifdef FW_VMACCESS 659 xfer = fw_xfer_alloc(); 660 if(xfer == NULL) return; 661 662 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_FW, M_NOWAIT); 663 if(fwb == NULL){ 664 fw_xfer_free(xfer); 665 } 666 xfer->act.hand = fw_vmaccess; 667 xfer->act_type = FWACT_XFER; 668 xfer->fc = fc; 669 xfer->sc = NULL; 670 671 fwb->start_hi = 0x2; 672 fwb->start_lo = 0; 673 fwb->addrlen = 0xffffffff; 674 fwb->xfer = xfer; 675 fw_bindadd(fc, fwb); 676 #endif 677 } 678 679 /* 680 * To lookup binded process from IEEE1394 address. 681 */ 682 struct fw_bind * 683 fw_bindlookup(struct firewire_comm *fc, u_int32_t dest_hi, u_int32_t dest_lo) 684 { 685 struct fw_bind *tfw; 686 for(tfw = STAILQ_FIRST(&fc->binds) ; tfw != NULL ; 687 tfw = STAILQ_NEXT(tfw, fclist)){ 688 if(tfw->xfer->act_type != FWACT_NULL && 689 tfw->start_hi == dest_hi && 690 tfw->start_lo <= dest_lo && 691 (tfw->start_lo + tfw->addrlen) > dest_lo){ 692 return(tfw); 693 } 694 } 695 return(NULL); 696 } 697 698 /* 699 * To bind IEEE1394 address block to process. 700 */ 701 int 702 fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb) 703 { 704 struct fw_bind *tfw, *tfw2 = NULL; 705 int err = 0; 706 tfw = STAILQ_FIRST(&fc->binds); 707 if(tfw == NULL){ 708 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 709 goto out; 710 } 711 if((tfw->start_hi > fwb->start_hi) || 712 (tfw->start_hi == fwb->start_hi && 713 (tfw->start_lo > (fwb->start_lo + fwb->addrlen)))){ 714 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 715 goto out; 716 } 717 for(; tfw != NULL; tfw = STAILQ_NEXT(tfw, fclist)){ 718 if((tfw->start_hi < fwb->start_hi) || 719 (tfw->start_hi == fwb->start_hi && 720 (tfw->start_lo + tfw->addrlen) < fwb->start_lo)){ 721 tfw2 = STAILQ_NEXT(tfw, fclist); 722 if(tfw2 == NULL) 723 break; 724 if((tfw2->start_hi > fwb->start_hi) || 725 (tfw2->start_hi == fwb->start_hi && 726 tfw2->start_lo > (fwb->start_lo + fwb->addrlen))){ 727 break; 728 }else{ 729 err = EBUSY; 730 goto out; 731 } 732 } 733 } 734 if(tfw != NULL){ 735 STAILQ_INSERT_AFTER(&fc->binds, tfw, fwb, fclist); 736 }else{ 737 STAILQ_INSERT_TAIL(&fc->binds, fwb, fclist); 738 } 739 out: 740 if(!err && fwb->xfer->act_type == FWACT_CH){ 741 STAILQ_INSERT_HEAD(&fc->ir[fwb->xfer->sub]->binds, fwb, chlist); 742 } 743 return err; 744 } 745 746 /* 747 * To free IEEE1394 address block. 748 */ 749 int 750 fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb) 751 { 752 int s; 753 754 s = splfw(); 755 /* shall we check the existance? */ 756 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist); 757 splx(s); 758 if (fwb->xfer) 759 fw_xfer_free(fwb->xfer); 760 761 return 0; 762 } 763 764 /* 765 * To free transaction label. 766 */ 767 static void 768 fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer) 769 { 770 struct tlabel *tl; 771 int s = splfw(); 772 773 for( tl = STAILQ_FIRST(&fc->tlabels[xfer->tl]); tl != NULL; 774 tl = STAILQ_NEXT(tl, link)){ 775 if(tl->xfer == xfer){ 776 STAILQ_REMOVE(&fc->tlabels[xfer->tl], tl, tlabel, link); 777 free(tl, M_FW); 778 splx(s); 779 return; 780 } 781 } 782 splx(s); 783 return; 784 } 785 786 /* 787 * To obtain XFER structure by transaction label. 788 */ 789 static struct fw_xfer * 790 fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel) 791 { 792 struct fw_xfer *xfer; 793 struct tlabel *tl; 794 int s = splfw(); 795 796 for( tl = STAILQ_FIRST(&fc->tlabels[tlabel]); tl != NULL; 797 tl = STAILQ_NEXT(tl, link)){ 798 if(tl->xfer->dst == node){ 799 xfer = tl->xfer; 800 splx(s); 801 return(xfer); 802 } 803 } 804 splx(s); 805 return(NULL); 806 } 807 808 /* 809 * To allocate IEEE1394 XFER structure. 810 */ 811 struct fw_xfer * 812 fw_xfer_alloc() 813 { 814 struct fw_xfer *xfer; 815 816 xfer = malloc(sizeof(struct fw_xfer), M_FW, M_NOWAIT | M_ZERO); 817 if (xfer == NULL) 818 return xfer; 819 820 xfer->time = time_second; 821 xfer->sub = -1; 822 823 return xfer; 824 } 825 826 /* 827 * IEEE1394 XFER post process. 828 */ 829 void 830 fw_xfer_done(struct fw_xfer *xfer) 831 { 832 if (xfer->act.hand == NULL) 833 return; 834 835 #if XFER_TIMEOUT 836 untimeout(fw_xfer_timeout, (void *)xfer, xfer->ch); 837 #endif 838 839 if (xfer->fc->status != FWBUSRESET) 840 xfer->act.hand(xfer); 841 else { 842 printf("fw_xfer_done: pending\n"); 843 if (xfer->fc != NULL) 844 STAILQ_INSERT_TAIL(&xfer->fc->pending, xfer, link); 845 else 846 panic("fw_xfer_done: why xfer->fc is NULL?"); 847 } 848 } 849 850 /* 851 * To free IEEE1394 XFER structure. 852 */ 853 void 854 fw_xfer_free( struct fw_xfer* xfer) 855 { 856 int s; 857 if(xfer == NULL ) return; 858 if(xfer->state == FWXF_INQ){ 859 printf("fw_xfer_free FWXF_INQ\n"); 860 s = splfw(); 861 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link); 862 xfer->q->queued --; 863 splx(s); 864 } 865 if(xfer->fc != NULL){ 866 if(xfer->state == FWXF_START){ 867 #if 0 /* this could happen if we call fwohci_arcv() before fwohci_txd() */ 868 printf("fw_xfer_free FWXF_START\n"); 869 #endif 870 s = splfw(); 871 xfer->q->drain(xfer->fc, xfer); 872 splx(s); 873 } 874 } 875 if(xfer->send.buf != NULL){ 876 free(xfer->send.buf, M_FW); 877 } 878 if(xfer->recv.buf != NULL){ 879 free(xfer->recv.buf, M_FW); 880 } 881 if(xfer->fc != NULL){ 882 fw_tl_free(xfer->fc, xfer); 883 } 884 free(xfer, M_FW); 885 } 886 887 static void 888 fw_asy_callback_free(struct fw_xfer *xfer) 889 { 890 #if 0 891 printf("asyreq done state=%d resp=%d\n", 892 xfer->state, xfer->resp); 893 #endif 894 fw_xfer_free(xfer); 895 } 896 897 /* 898 * To configure PHY. 899 */ 900 static void 901 fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count) 902 { 903 struct fw_xfer *xfer; 904 struct fw_pkt *fp; 905 906 fc->status = FWBUSPHYCONF; 907 908 #if 0 909 DELAY(100000); 910 #endif 911 xfer = fw_xfer_alloc(); 912 xfer->send.len = 12; 913 xfer->send.off = 0; 914 xfer->fc = fc; 915 xfer->retry_req = fw_asybusy; 916 xfer->act.hand = fw_asy_callback_free; 917 918 xfer->send.buf = malloc(sizeof(u_int32_t), 919 M_FW, M_NOWAIT | M_ZERO); 920 fp = (struct fw_pkt *)xfer->send.buf; 921 fp->mode.ld[1] = 0; 922 if (root_node >= 0) 923 fp->mode.ld[1] |= htonl((root_node & 0x3f) << 24 | 1 << 23); 924 if (gap_count >= 0) 925 fp->mode.ld[1] |= htonl(1 << 22 | (gap_count & 0x3f) << 16); 926 fp->mode.ld[2] = ~fp->mode.ld[1]; 927 /* XXX Dangerous, how to pass PHY packet to device driver */ 928 fp->mode.common.tcode |= FWTCODE_PHY; 929 930 if (firewire_debug) 931 printf("send phy_config root_node=%d gap_count=%d\n", 932 root_node, gap_count); 933 fw_asyreq(fc, -1, xfer); 934 } 935 936 #if 0 937 /* 938 * Dump self ID. 939 */ 940 static void 941 fw_print_sid(u_int32_t sid) 942 { 943 union fw_self_id *s; 944 s = (union fw_self_id *) &sid; 945 printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d" 946 " p0:%d p1:%d p2:%d i:%d m:%d\n", 947 s->p0.phy_id, s->p0.link_active, s->p0.gap_count, 948 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender, 949 s->p0.power_class, s->p0.port0, s->p0.port1, 950 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets); 951 } 952 #endif 953 954 /* 955 * To receive self ID. 956 */ 957 void fw_sidrcv(struct firewire_comm* fc, caddr_t buf, u_int len, u_int off) 958 { 959 u_int32_t *p, *sid = (u_int32_t *)(buf + off); 960 union fw_self_id *self_id; 961 u_int i, j, node, c_port = 0, i_branch = 0; 962 963 fc->sid_cnt = len /(sizeof(u_int32_t) * 2); 964 fc->status = FWBUSINIT; 965 fc->max_node = fc->nodeid & 0x3f; 966 CSRARC(fc, NODE_IDS) = ((u_int32_t)fc->nodeid) << 16; 967 fc->status = FWBUSCYMELECT; 968 fc->topology_map->crc_len = 2; 969 fc->topology_map->generation ++; 970 fc->topology_map->self_id_count = 0; 971 fc->topology_map->node_count = 0; 972 fc->speed_map->generation ++; 973 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4; 974 self_id = &fc->topology_map->self_id[0]; 975 for(i = 0; i < fc->sid_cnt; i ++){ 976 if (sid[1] != ~sid[0]) { 977 printf("fw_sidrcv: invalid self-id packet\n"); 978 sid += 2; 979 continue; 980 } 981 *self_id = *((union fw_self_id *)sid); 982 fc->topology_map->crc_len++; 983 if(self_id->p0.sequel == 0){ 984 fc->topology_map->node_count ++; 985 c_port = 0; 986 #if 0 987 fw_print_sid(sid[0]); 988 #endif 989 node = self_id->p0.phy_id; 990 if(fc->max_node < node){ 991 fc->max_node = self_id->p0.phy_id; 992 } 993 /* XXX I'm not sure this is the right speed_map */ 994 fc->speed_map->speed[node][node] 995 = self_id->p0.phy_speed; 996 for (j = 0; j < node; j ++) { 997 fc->speed_map->speed[j][node] 998 = fc->speed_map->speed[node][j] 999 = min(fc->speed_map->speed[j][j], 1000 self_id->p0.phy_speed); 1001 } 1002 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) && 1003 (self_id->p0.link_active && self_id->p0.contender)) { 1004 fc->irm = self_id->p0.phy_id; 1005 } 1006 if(self_id->p0.port0 >= 0x2){ 1007 c_port++; 1008 } 1009 if(self_id->p0.port1 >= 0x2){ 1010 c_port++; 1011 } 1012 if(self_id->p0.port2 >= 0x2){ 1013 c_port++; 1014 } 1015 } 1016 if(c_port > 2){ 1017 i_branch += (c_port - 2); 1018 } 1019 sid += 2; 1020 self_id++; 1021 fc->topology_map->self_id_count ++; 1022 } 1023 device_printf(fc->bdev, "%d nodes", fc->max_node + 1); 1024 /* CRC */ 1025 fc->topology_map->crc = fw_crc16( 1026 (u_int32_t *)&fc->topology_map->generation, 1027 fc->topology_map->crc_len * 4); 1028 fc->speed_map->crc = fw_crc16( 1029 (u_int32_t *)&fc->speed_map->generation, 1030 fc->speed_map->crc_len * 4); 1031 /* byteswap and copy to CSR */ 1032 p = (u_int32_t *)fc->topology_map; 1033 for (i = 0; i <= fc->topology_map->crc_len; i++) 1034 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++); 1035 p = (u_int32_t *)fc->speed_map; 1036 CSRARC(fc, SPED_MAP) = htonl(*p++); 1037 CSRARC(fc, SPED_MAP + 4) = htonl(*p++); 1038 /* don't byte-swap u_int8_t array */ 1039 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4); 1040 1041 fc->max_hop = fc->max_node - i_branch; 1042 #if 1 1043 printf(", maxhop <= %d", fc->max_hop); 1044 #endif 1045 1046 if(fc->irm == -1 ){ 1047 printf(", Not found IRM capable node"); 1048 }else{ 1049 printf(", cable IRM = %d", fc->irm); 1050 if (fc->irm == fc->nodeid) 1051 printf(" (me)"); 1052 } 1053 printf("\n"); 1054 1055 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) { 1056 if (fc->irm == ((CSRARC(fc, NODE_IDS) >> 16 ) & 0x3f)) { 1057 fc->status = FWBUSMGRDONE; 1058 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm); 1059 } else { 1060 fc->status = FWBUSMGRELECT; 1061 callout_reset(&fc->bmr_callout, hz/8, 1062 (void *)fw_try_bmr, (void *)fc); 1063 } 1064 } else { 1065 fc->status = FWBUSMGRDONE; 1066 #if 0 1067 device_printf(fc->bdev, "BMR = %x\n", 1068 CSRARC(fc, BUS_MGR_ID)); 1069 #endif 1070 } 1071 free(buf, M_FW); 1072 if(fc->irm == ((CSRARC(fc, NODE_IDS) >> 16 ) & 0x3f)){ 1073 /* I am BMGR */ 1074 fw_bmr(fc); 1075 } 1076 callout_reset(&fc->busprobe_callout, hz/4, 1077 (void *)fw_bus_probe, (void *)fc); 1078 } 1079 1080 /* 1081 * To probe devices on the IEEE1394 bus. 1082 */ 1083 static void 1084 fw_bus_probe(struct firewire_comm *fc) 1085 { 1086 int s; 1087 struct fw_device *fwdev, *next; 1088 1089 s = splfw(); 1090 fc->status = FWBUSEXPLORE; 1091 fc->retry_count = 0; 1092 1093 /* 1094 * Invalidate all devices, just after bus reset. Devices 1095 * to be removed has not been seen longer time. 1096 */ 1097 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1098 next = STAILQ_NEXT(fwdev, link); 1099 if (fwdev->status != FWDEVINVAL) { 1100 fwdev->status = FWDEVINVAL; 1101 fwdev->rcnt = 0; 1102 } else if(fwdev->rcnt < FW_MAXDEVRCNT) { 1103 fwdev->rcnt ++; 1104 } else { 1105 STAILQ_REMOVE(&fc->devices, fwdev, fw_device, link); 1106 free(fwdev, M_FW); 1107 } 1108 } 1109 fc->ongonode = 0; 1110 fc->ongoaddr = CSRROMOFF; 1111 fc->ongodev = NULL; 1112 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1113 fw_bus_explore(fc); 1114 splx(s); 1115 } 1116 1117 /* 1118 * To collect device informations on the IEEE1394 bus. 1119 */ 1120 static void 1121 fw_bus_explore(struct firewire_comm *fc ) 1122 { 1123 int err = 0; 1124 struct fw_device *fwdev, *pfwdev, *tfwdev; 1125 u_int32_t addr; 1126 struct fw_xfer *xfer; 1127 struct fw_pkt *fp; 1128 1129 if(fc->status != FWBUSEXPLORE) 1130 return; 1131 1132 loop: 1133 if(fc->ongonode == fc->nodeid) fc->ongonode++; 1134 1135 if(fc->ongonode > fc->max_node) goto done; 1136 if(fc->ongonode >= 0x3f) goto done; 1137 1138 /* check link */ 1139 /* XXX we need to check phy_id first */ 1140 if (!fc->topology_map->self_id[fc->ongonode].p0.link_active) { 1141 printf("fw_bus_explore: node %d link down\n", fc->ongonode); 1142 fc->ongonode++; 1143 goto loop; 1144 } 1145 1146 if(fc->ongoaddr <= CSRROMOFF && 1147 fc->ongoeui.hi == 0xffffffff && 1148 fc->ongoeui.lo == 0xffffffff ){ 1149 fc->ongoaddr = CSRROMOFF; 1150 addr = 0xf0000000 | fc->ongoaddr; 1151 }else if(fc->ongoeui.hi == 0xffffffff ){ 1152 fc->ongoaddr = CSRROMOFF + 0xc; 1153 addr = 0xf0000000 | fc->ongoaddr; 1154 }else if(fc->ongoeui.lo == 0xffffffff ){ 1155 fc->ongoaddr = CSRROMOFF + 0x10; 1156 addr = 0xf0000000 | fc->ongoaddr; 1157 }else if(fc->ongodev == NULL){ 1158 STAILQ_FOREACH(fwdev, &fc->devices, link) 1159 if (FW_EUI64_EQUAL(fwdev->eui, fc->ongoeui)) 1160 break; 1161 if(fwdev != NULL){ 1162 fwdev->dst = fc->ongonode; 1163 fwdev->status = FWDEVATTACHED; 1164 fc->ongonode++; 1165 fc->ongoaddr = CSRROMOFF; 1166 fc->ongodev = NULL; 1167 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1168 goto loop; 1169 } 1170 fwdev = malloc(sizeof(struct fw_device), M_FW, M_NOWAIT); 1171 if(fwdev == NULL) 1172 return; 1173 fwdev->fc = fc; 1174 fwdev->rommax = 0; 1175 fwdev->dst = fc->ongonode; 1176 fwdev->eui.hi = fc->ongoeui.hi; fwdev->eui.lo = fc->ongoeui.lo; 1177 fwdev->status = FWDEVINIT; 1178 #if 0 1179 fwdev->speed = CSRARC(fc, SPED_MAP + 8 + fc->ongonode / 4) 1180 >> ((3 - (fc->ongonode % 4)) * 8); 1181 #else 1182 fwdev->speed = fc->speed_map->speed[fc->nodeid][fc->ongonode]; 1183 #endif 1184 1185 pfwdev = NULL; 1186 STAILQ_FOREACH(tfwdev, &fc->devices, link) { 1187 if (tfwdev->eui.hi > fwdev->eui.hi || 1188 (tfwdev->eui.hi == fwdev->eui.hi && 1189 tfwdev->eui.lo > fwdev->eui.lo)) 1190 break; 1191 pfwdev = tfwdev; 1192 } 1193 if (pfwdev == NULL) 1194 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link); 1195 else 1196 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link); 1197 1198 device_printf(fc->bdev, "New %s device ID:%08x%08x\n", 1199 linkspeed[fwdev->speed], 1200 fc->ongoeui.hi, fc->ongoeui.lo); 1201 1202 fc->ongodev = fwdev; 1203 fc->ongoaddr = CSRROMOFF; 1204 addr = 0xf0000000 | fc->ongoaddr; 1205 }else{ 1206 addr = 0xf0000000 | fc->ongoaddr; 1207 } 1208 #if 0 1209 xfer = asyreqq(fc, FWSPD_S100, 0, 0, 1210 ((FWLOCALBUS | fc->ongonode) << 16) | 0xffff , addr, 1211 fw_bus_explore_callback); 1212 if(xfer == NULL) goto done; 1213 #else 1214 xfer = fw_xfer_alloc(); 1215 if(xfer == NULL){ 1216 goto done; 1217 } 1218 xfer->send.len = 16; 1219 xfer->spd = 0; 1220 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 1221 if(xfer->send.buf == NULL){ 1222 fw_xfer_free( xfer); 1223 return; 1224 } 1225 1226 xfer->send.off = 0; 1227 fp = (struct fw_pkt *)xfer->send.buf; 1228 fp->mode.rreqq.dest_hi = htons(0xffff); 1229 fp->mode.rreqq.tlrt = 0; 1230 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1231 fp->mode.rreqq.pri = 0; 1232 fp->mode.rreqq.src = 0; 1233 xfer->dst = FWLOCALBUS | fc->ongonode; 1234 fp->mode.rreqq.dst = htons(xfer->dst); 1235 fp->mode.rreqq.dest_lo = htonl(addr); 1236 xfer->act.hand = fw_bus_explore_callback; 1237 1238 err = fw_asyreq(fc, -1, xfer); 1239 if(err){ 1240 fw_xfer_free( xfer); 1241 return; 1242 } 1243 #endif 1244 return; 1245 done: 1246 /* fw_attach_devs */ 1247 fc->status = FWBUSEXPDONE; 1248 if (firewire_debug) 1249 printf("bus_explore done\n"); 1250 fw_attach_dev(fc); 1251 return; 1252 1253 } 1254 1255 /* Portable Async. request read quad */ 1256 struct fw_xfer * 1257 asyreqq(struct firewire_comm *fc, u_int8_t spd, u_int8_t tl, u_int8_t rt, 1258 u_int32_t addr_hi, u_int32_t addr_lo, 1259 void (*hand) __P((struct fw_xfer*))) 1260 { 1261 struct fw_xfer *xfer; 1262 struct fw_pkt *fp; 1263 int err; 1264 1265 xfer = fw_xfer_alloc(); 1266 if(xfer == NULL){ 1267 return NULL; 1268 } 1269 xfer->send.len = 16; 1270 xfer->spd = spd; /* XXX:min(spd, fc->spd) */ 1271 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 1272 if(xfer->send.buf == NULL){ 1273 fw_xfer_free( xfer); 1274 return NULL; 1275 } 1276 1277 xfer->send.off = 0; 1278 fp = (struct fw_pkt *)xfer->send.buf; 1279 fp->mode.rreqq.dest_hi = htons(addr_hi & 0xffff); 1280 if(tl & FWP_TL_VALID){ 1281 fp->mode.rreqq.tlrt = (tl & 0x3f) << 2; 1282 }else{ 1283 fp->mode.rreqq.tlrt = 0; 1284 } 1285 fp->mode.rreqq.tlrt |= rt & 0x3; 1286 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1287 fp->mode.rreqq.pri = 0; 1288 fp->mode.rreqq.src = 0; 1289 xfer->dst = addr_hi >> 16; 1290 fp->mode.rreqq.dst = htons(xfer->dst); 1291 fp->mode.rreqq.dest_lo = htonl(addr_lo); 1292 xfer->act.hand = hand; 1293 1294 err = fw_asyreq(fc, -1, xfer); 1295 if(err){ 1296 fw_xfer_free( xfer); 1297 return NULL; 1298 } 1299 return xfer; 1300 } 1301 1302 /* 1303 * Callback for the IEEE1394 bus information collection. 1304 */ 1305 static void 1306 fw_bus_explore_callback(struct fw_xfer *xfer) 1307 { 1308 struct firewire_comm *fc; 1309 struct fw_pkt *sfp,*rfp; 1310 struct csrhdr *chdr; 1311 struct csrdir *csrd; 1312 struct csrreg *csrreg; 1313 u_int32_t offset; 1314 1315 1316 if(xfer == NULL) return; 1317 fc = xfer->fc; 1318 if(xfer->resp != 0){ 1319 printf("resp != 0: node=%d addr=0x%x\n", 1320 fc->ongonode, fc->ongoaddr); 1321 fc->retry_count++; 1322 goto nextnode; 1323 } 1324 1325 if(xfer->send.buf == NULL){ 1326 printf("send.buf == NULL: node=%d addr=0x%x\n", 1327 fc->ongonode, fc->ongoaddr); 1328 printf("send.buf == NULL\n"); 1329 fc->retry_count++; 1330 goto nextnode; 1331 } 1332 sfp = (struct fw_pkt *)xfer->send.buf; 1333 1334 if(xfer->recv.buf == NULL){ 1335 printf("recv.buf == NULL: node=%d addr=0x%x\n", 1336 fc->ongonode, fc->ongoaddr); 1337 fc->retry_count++; 1338 goto nextnode; 1339 } 1340 rfp = (struct fw_pkt *)xfer->recv.buf; 1341 #if 0 1342 { 1343 u_int32_t *qld; 1344 int i; 1345 qld = (u_int32_t *)xfer->recv.buf; 1346 printf("len:%d\n", xfer->recv.len); 1347 for( i = 0 ; i <= xfer->recv.len && i < 32; i+= 4){ 1348 printf("0x%08x ", ntohl(rfp->mode.ld[i/4])); 1349 if((i % 16) == 15) printf("\n"); 1350 } 1351 if((i % 16) != 15) printf("\n"); 1352 } 1353 #endif 1354 if(fc->ongodev == NULL){ 1355 if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 | CSRROMOFF))){ 1356 rfp->mode.rresq.data = ntohl(rfp->mode.rresq.data); 1357 chdr = (struct csrhdr *)(&rfp->mode.rresq.data); 1358 /* If CSR is minimul confinguration, more investgation is not needed. */ 1359 if(chdr->info_len == 1){ 1360 goto nextnode; 1361 }else{ 1362 fc->ongoaddr = CSRROMOFF + 0xc; 1363 } 1364 }else if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 |(CSRROMOFF + 0xc)))){ 1365 fc->ongoeui.hi = ntohl(rfp->mode.rresq.data); 1366 fc->ongoaddr = CSRROMOFF + 0x10; 1367 }else if(sfp->mode.rreqq.dest_lo == htonl((0xf0000000 |(CSRROMOFF + 0x10)))){ 1368 fc->ongoeui.lo = ntohl(rfp->mode.rresq.data); 1369 if (fc->ongoeui.hi == 0 && fc->ongoeui.lo == 0) 1370 goto nextnode; 1371 fc->ongoaddr = CSRROMOFF; 1372 } 1373 }else{ 1374 fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4] = ntohl(rfp->mode.rresq.data); 1375 if(fc->ongoaddr > fc->ongodev->rommax){ 1376 fc->ongodev->rommax = fc->ongoaddr; 1377 } 1378 csrd = SLIST_FIRST(&fc->ongocsr); 1379 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1380 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1381 offset = CSRROMOFF; 1382 }else{ 1383 chdr = (struct csrhdr *)&fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]; 1384 offset = csrd->off; 1385 } 1386 if(fc->ongoaddr > (CSRROMOFF + 0x14) && fc->ongoaddr != offset){ 1387 csrreg = (struct csrreg *)&fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4]; 1388 if( csrreg->key == 0x81 || csrreg->key == 0xd1){ 1389 csrd = SLIST_FIRST(&fc->csrfree); 1390 if(csrd == NULL){ 1391 goto nextnode; 1392 }else{ 1393 csrd->ongoaddr = fc->ongoaddr; 1394 fc->ongoaddr += csrreg->val * 4; 1395 csrd->off = fc->ongoaddr; 1396 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1397 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1398 goto nextaddr; 1399 } 1400 } 1401 } 1402 fc->ongoaddr += 4; 1403 if(((fc->ongoaddr - offset)/4 > chdr->crc_len) && 1404 (fc->ongodev->rommax < 0x414)){ 1405 if(fc->ongodev->rommax <= 0x414){ 1406 csrd = SLIST_FIRST(&fc->csrfree); 1407 if(csrd == NULL) goto nextnode; 1408 csrd->off = fc->ongoaddr; 1409 csrd->ongoaddr = fc->ongoaddr; 1410 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1411 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1412 } 1413 goto nextaddr; 1414 } 1415 1416 while(((fc->ongoaddr - offset)/4 > chdr->crc_len)){ 1417 if(csrd == NULL){ 1418 goto nextnode; 1419 }; 1420 fc->ongoaddr = csrd->ongoaddr + 4; 1421 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1422 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1423 csrd = SLIST_FIRST(&fc->ongocsr); 1424 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1425 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1426 offset = CSRROMOFF; 1427 }else{ 1428 chdr = (struct csrhdr *)&(fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]); 1429 offset = csrd->off; 1430 } 1431 } 1432 if((fc->ongoaddr - CSRROMOFF) > CSRROMSIZE){ 1433 goto nextnode; 1434 } 1435 } 1436 nextaddr: 1437 fw_xfer_free( xfer); 1438 fw_bus_explore(fc); 1439 return; 1440 nextnode: 1441 fw_xfer_free( xfer); 1442 fc->ongonode++; 1443 /* housekeeping work space */ 1444 fc->ongoaddr = CSRROMOFF; 1445 fc->ongodev = NULL; 1446 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1447 while((csrd = SLIST_FIRST(&fc->ongocsr)) != NULL){ 1448 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1449 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1450 } 1451 fw_bus_explore(fc); 1452 return; 1453 } 1454 1455 /* 1456 * To obtain CSR register values. 1457 */ 1458 u_int32_t 1459 getcsrdata(struct fw_device *fwdev, u_int8_t key) 1460 { 1461 int i; 1462 struct csrhdr *chdr; 1463 struct csrreg *creg; 1464 chdr = (struct csrhdr *)&fwdev->csrrom[0]; 1465 for( i = chdr->info_len + 4; i <= fwdev->rommax - CSRROMOFF; i+=4){ 1466 creg = (struct csrreg *)&fwdev->csrrom[i/4]; 1467 if(creg->key == key){ 1468 return (u_int32_t)creg->val; 1469 } 1470 } 1471 return 0; 1472 } 1473 1474 /* 1475 * To attach sub-devices layer onto IEEE1394 bus. 1476 */ 1477 static void 1478 fw_attach_dev(struct firewire_comm *fc) 1479 { 1480 struct fw_device *fwdev; 1481 struct fw_xfer *xfer; 1482 int i, err; 1483 device_t *devlistp; 1484 int devcnt; 1485 struct firewire_dev_comm *fdc; 1486 u_int32_t spec, ver; 1487 1488 STAILQ_FOREACH(fwdev, &fc->devices, link) { 1489 if(fwdev->status == FWDEVINIT){ 1490 spec = getcsrdata(fwdev, CSRKEY_SPEC); 1491 if(spec == 0) 1492 continue; 1493 ver = getcsrdata(fwdev, CSRKEY_VER); 1494 if(ver == 0) 1495 continue; 1496 fwdev->maxrec = (fwdev->csrrom[2] >> 12) & 0xf; 1497 1498 device_printf(fc->bdev, "Device "); 1499 switch(spec){ 1500 case CSRVAL_ANSIT10: 1501 switch(ver){ 1502 case CSRVAL_T10SBP2: 1503 printf("SBP-II"); 1504 break; 1505 default: 1506 break; 1507 } 1508 break; 1509 case CSRVAL_1394TA: 1510 switch(ver){ 1511 case CSR_PROTAVC: 1512 printf("AV/C"); 1513 break; 1514 case CSR_PROTCAL: 1515 printf("CAL"); 1516 break; 1517 case CSR_PROTEHS: 1518 printf("EHS"); 1519 break; 1520 case CSR_PROTHAVI: 1521 printf("HAVi"); 1522 break; 1523 case CSR_PROTCAM104: 1524 printf("1394 Cam 1.04"); 1525 break; 1526 case CSR_PROTCAM120: 1527 printf("1394 Cam 1.20"); 1528 break; 1529 case CSR_PROTCAM130: 1530 printf("1394 Cam 1.30"); 1531 break; 1532 case CSR_PROTDPP: 1533 printf("1394 Direct print"); 1534 break; 1535 case CSR_PROTIICP: 1536 printf("Industrial & Instrument"); 1537 break; 1538 default: 1539 printf("unknown 1394TA"); 1540 break; 1541 } 1542 break; 1543 default: 1544 printf("unknown spec"); 1545 break; 1546 } 1547 fwdev->status = FWDEVATTACHED; 1548 printf("\n"); 1549 } 1550 } 1551 err = device_get_children(fc->bdev, &devlistp, &devcnt); 1552 if( err != 0 ) 1553 return; 1554 for( i = 0 ; i < devcnt ; i++){ 1555 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 1556 fdc = device_get_softc(devlistp[i]); 1557 if (fdc->post_explore != NULL) 1558 fdc->post_explore(fdc); 1559 } 1560 } 1561 free(devlistp, M_TEMP); 1562 1563 /* call pending handlers */ 1564 i = 0; 1565 while ((xfer = STAILQ_FIRST(&fc->pending))) { 1566 STAILQ_REMOVE_HEAD(&fc->pending, link); 1567 i++; 1568 if (xfer->act.hand) 1569 xfer->act.hand(xfer); 1570 } 1571 if (i > 0) 1572 printf("fw_attach_dev: %d pending handlers called\n", i); 1573 if (fc->retry_count > 0) { 1574 printf("retry_count = %d\n", fc->retry_count); 1575 callout_reset(&fc->retry_probe_callout, hz*2, 1576 (void *)fc->ibr, (void *)fc); 1577 } 1578 return; 1579 } 1580 1581 /* 1582 * To allocate uniq transaction label. 1583 */ 1584 static int 1585 fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer) 1586 { 1587 u_int i; 1588 struct tlabel *tl, *tmptl; 1589 int s; 1590 static u_int32_t label = 0; 1591 1592 s = splfw(); 1593 for( i = 0 ; i < 0x40 ; i ++){ 1594 label = (label + 1) & 0x3f; 1595 for(tmptl = STAILQ_FIRST(&fc->tlabels[label]); 1596 tmptl != NULL; tmptl = STAILQ_NEXT(tmptl, link)){ 1597 if(tmptl->xfer->dst == xfer->dst) break; 1598 } 1599 if(tmptl == NULL) { 1600 tl = malloc(sizeof(struct tlabel),M_FW,M_NOWAIT); 1601 if (tl == NULL) { 1602 splx(s); 1603 return (-1); 1604 } 1605 tl->xfer = xfer; 1606 STAILQ_INSERT_TAIL(&fc->tlabels[label], tl, link); 1607 splx(s); 1608 return(label); 1609 } 1610 } 1611 splx(s); 1612 1613 printf("fw_get_tlabel: no free tlabel\n"); 1614 return(-1); 1615 } 1616 1617 /* 1618 * Generic packet receving process. 1619 */ 1620 void 1621 fw_rcv(struct firewire_comm* fc, caddr_t buf, u_int len, u_int sub, u_int off, u_int spd) 1622 { 1623 struct fw_pkt *fp, *resfp; 1624 struct fw_xfer *xfer; 1625 struct fw_bind *bind; 1626 struct firewire_softc *sc; 1627 int s; 1628 #if 0 1629 { 1630 u_int32_t *qld; 1631 int i; 1632 qld = (u_int32_t *)buf; 1633 printf("spd %d len:%d\n", spd, len); 1634 for( i = 0 ; i <= len && i < 32; i+= 4){ 1635 printf("0x%08x ", ntohl(qld[i/4])); 1636 if((i % 16) == 15) printf("\n"); 1637 } 1638 if((i % 16) != 15) printf("\n"); 1639 } 1640 #endif 1641 fp = (struct fw_pkt *)(buf + off); 1642 switch(fp->mode.common.tcode){ 1643 case FWTCODE_WRES: 1644 case FWTCODE_RRESQ: 1645 case FWTCODE_RRESB: 1646 case FWTCODE_LRES: 1647 xfer = fw_tl2xfer(fc, ntohs(fp->mode.hdr.src), 1648 fp->mode.hdr.tlrt >> 2); 1649 if(xfer == NULL) { 1650 printf("fw_rcv: unknown response " 1651 "tcode=%d src=0x%x tl=%x rt=%d data=0x%x\n", 1652 fp->mode.common.tcode, 1653 ntohs(fp->mode.hdr.src), 1654 fp->mode.hdr.tlrt >> 2, 1655 fp->mode.hdr.tlrt & 3, 1656 fp->mode.rresq.data); 1657 #if 1 1658 printf("try ad-hoc work around!!\n"); 1659 xfer = fw_tl2xfer(fc, ntohs(fp->mode.hdr.src), 1660 (fp->mode.hdr.tlrt >> 2)^3); 1661 if (xfer == NULL) { 1662 printf("no use...\n"); 1663 goto err; 1664 } 1665 #else 1666 goto err; 1667 #endif 1668 } 1669 switch(xfer->act_type){ 1670 case FWACT_XFER: 1671 if((xfer->sub >= 0) && 1672 ((fc->ir[xfer->sub]->flag & FWXFERQ_MODEMASK ) == 0)){ 1673 xfer->resp = EINVAL; 1674 fw_xfer_done(xfer); 1675 goto err; 1676 } 1677 xfer->recv.len = len; 1678 xfer->recv.off = off; 1679 xfer->recv.buf = buf; 1680 xfer->resp = 0; 1681 fw_xfer_done(xfer); 1682 return; 1683 break; 1684 case FWACT_CH: 1685 default: 1686 goto err; 1687 break; 1688 } 1689 break; 1690 case FWTCODE_WREQQ: 1691 case FWTCODE_WREQB: 1692 case FWTCODE_RREQQ: 1693 case FWTCODE_RREQB: 1694 case FWTCODE_LREQ: 1695 bind = fw_bindlookup(fc, ntohs(fp->mode.rreqq.dest_hi), 1696 ntohl(fp->mode.rreqq.dest_lo)); 1697 if(bind == NULL){ 1698 #if __FreeBSD_version >= 500000 1699 printf("Unknown service addr 0x%08x:0x%08x tcode=%x\n", 1700 #else 1701 printf("Unknown service addr 0x%08x:0x%08lx tcode=%x\n", 1702 #endif 1703 ntohs(fp->mode.rreqq.dest_hi), 1704 ntohl(fp->mode.rreqq.dest_lo), 1705 fp->mode.common.tcode); 1706 if (fc->status == FWBUSRESET) { 1707 printf("fw_rcv: cannot response(bus reset)!\n"); 1708 goto err; 1709 } 1710 xfer = fw_xfer_alloc(); 1711 if(xfer == NULL){ 1712 return; 1713 } 1714 xfer->spd = spd; 1715 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 1716 resfp = (struct fw_pkt *)xfer->send.buf; 1717 switch(fp->mode.common.tcode){ 1718 case FWTCODE_WREQQ: 1719 case FWTCODE_WREQB: 1720 resfp->mode.hdr.tcode = FWTCODE_WRES; 1721 xfer->send.len = 12; 1722 break; 1723 case FWTCODE_RREQQ: 1724 resfp->mode.hdr.tcode = FWTCODE_RRESQ; 1725 xfer->send.len = 16; 1726 break; 1727 case FWTCODE_RREQB: 1728 resfp->mode.hdr.tcode = FWTCODE_RRESB; 1729 xfer->send.len = 16; 1730 break; 1731 case FWTCODE_LREQ: 1732 resfp->mode.hdr.tcode = FWTCODE_LRES; 1733 xfer->send.len = 16; 1734 break; 1735 } 1736 resfp->mode.hdr.dst = fp->mode.hdr.src; 1737 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt; 1738 resfp->mode.hdr.pri = fp->mode.hdr.pri; 1739 resfp->mode.rresb.rtcode = 7; 1740 resfp->mode.rresb.extcode = 0; 1741 resfp->mode.rresb.len = 0; 1742 /* 1743 xfer->act.hand = fw_asy_callback; 1744 */ 1745 xfer->act.hand = fw_xfer_free; 1746 if(fw_asyreq(fc, -1, xfer)){ 1747 fw_xfer_free( xfer); 1748 return; 1749 } 1750 goto err; 1751 } 1752 switch(bind->xfer->act_type){ 1753 case FWACT_XFER: 1754 xfer = fw_xfer_alloc(); 1755 if(xfer == NULL) goto err; 1756 xfer->fc = bind->xfer->fc; 1757 xfer->sc = bind->xfer->sc; 1758 xfer->recv.buf = buf; 1759 xfer->recv.len = len; 1760 xfer->recv.off = off; 1761 xfer->spd = spd; 1762 xfer->act.hand = bind->xfer->act.hand; 1763 if (fc->status != FWBUSRESET) 1764 xfer->act.hand(xfer); 1765 else 1766 STAILQ_INSERT_TAIL(&fc->pending, xfer, link); 1767 return; 1768 break; 1769 case FWACT_CH: 1770 if(fc->ir[bind->xfer->sub]->queued >= 1771 fc->ir[bind->xfer->sub]->maxq){ 1772 device_printf(fc->bdev, 1773 "Discard a packet %x %d\n", 1774 bind->xfer->sub, 1775 fc->ir[bind->xfer->sub]->queued); 1776 goto err; 1777 } 1778 xfer = fw_xfer_alloc(); 1779 if(xfer == NULL) goto err; 1780 xfer->recv.buf = buf; 1781 xfer->recv.len = len; 1782 xfer->recv.off = off; 1783 xfer->spd = spd; 1784 s = splfw(); 1785 fc->ir[bind->xfer->sub]->queued++; 1786 STAILQ_INSERT_TAIL(&fc->ir[bind->xfer->sub]->q, xfer, link); 1787 splx(s); 1788 1789 wakeup((caddr_t)fc->ir[bind->xfer->sub]); 1790 1791 return; 1792 break; 1793 default: 1794 goto err; 1795 break; 1796 } 1797 break; 1798 case FWTCODE_STREAM: 1799 { 1800 struct fw_xferq *xferq; 1801 1802 xferq = fc->ir[sub]; 1803 #if 0 1804 printf("stream rcv dma %d len %d off %d spd %d\n", 1805 sub, len, off, spd); 1806 #endif 1807 if(xferq->queued >= xferq->maxq) { 1808 printf("receive queue is full\n"); 1809 goto err; 1810 } 1811 xfer = fw_xfer_alloc(); 1812 if(xfer == NULL) goto err; 1813 xfer->recv.buf = buf; 1814 xfer->recv.len = len; 1815 xfer->recv.off = off; 1816 xfer->spd = spd; 1817 s = splfw(); 1818 xferq->queued++; 1819 STAILQ_INSERT_TAIL(&xferq->q, xfer, link); 1820 splx(s); 1821 sc = device_get_softc(fc->bdev); 1822 #if __FreeBSD_version >= 500000 1823 if (SEL_WAITING(&xferq->rsel)) 1824 #else 1825 if (&xferq->rsel.si_pid != 0) 1826 #endif 1827 selwakeup(&xferq->rsel); 1828 if (xferq->flag & FWXFERQ_WAKEUP) { 1829 xferq->flag &= ~FWXFERQ_WAKEUP; 1830 wakeup((caddr_t)xferq); 1831 } 1832 if (xferq->flag & FWXFERQ_HANDLER) { 1833 xferq->hand(xferq); 1834 } 1835 return; 1836 break; 1837 } 1838 default: 1839 printf("fw_rcv: unknow tcode\n"); 1840 break; 1841 } 1842 err: 1843 free(buf, M_FW); 1844 } 1845 1846 /* 1847 * Post process for Bus Manager election process. 1848 */ 1849 static void 1850 fw_try_bmr_callback(struct fw_xfer *xfer) 1851 { 1852 struct fw_pkt *rfp; 1853 struct firewire_comm *fc; 1854 int bmr; 1855 1856 if (xfer == NULL) 1857 return; 1858 fc = xfer->fc; 1859 if (xfer->resp != 0) 1860 goto error; 1861 if (xfer->send.buf == NULL) 1862 goto error; 1863 if (xfer->recv.buf == NULL) 1864 goto error; 1865 rfp = (struct fw_pkt *)xfer->recv.buf; 1866 if (rfp->mode.lres.rtcode != FWRCODE_COMPLETE) 1867 goto error; 1868 1869 bmr = ntohl(rfp->mode.lres.payload[0]); 1870 if (bmr == 0x3f) 1871 bmr = fc->nodeid; 1872 1873 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f); 1874 device_printf(fc->bdev, "new bus manager %d ", 1875 CSRARC(fc, BUS_MGR_ID)); 1876 if(bmr == fc->nodeid){ 1877 printf("(me)\n"); 1878 fw_bmr(fc); 1879 }else{ 1880 printf("\n"); 1881 } 1882 error: 1883 fw_xfer_free(xfer); 1884 } 1885 1886 /* 1887 * To candidate Bus Manager election process. 1888 */ 1889 void 1890 fw_try_bmr(void *arg) 1891 { 1892 struct fw_xfer *xfer; 1893 struct firewire_comm *fc = (struct firewire_comm *)arg; 1894 struct fw_pkt *fp; 1895 int err = 0; 1896 1897 xfer = fw_xfer_alloc(); 1898 if(xfer == NULL){ 1899 return; 1900 } 1901 xfer->send.len = 24; 1902 xfer->spd = 0; 1903 xfer->send.buf = malloc(24, M_FW, M_NOWAIT); 1904 if(xfer->send.buf == NULL){ 1905 fw_xfer_free( xfer); 1906 return; 1907 } 1908 1909 fc->status = FWBUSMGRELECT; 1910 1911 xfer->send.off = 0; 1912 fp = (struct fw_pkt *)xfer->send.buf; 1913 fp->mode.lreq.dest_hi = htons(0xffff); 1914 fp->mode.lreq.tlrt = 0; 1915 fp->mode.lreq.tcode = FWTCODE_LREQ; 1916 fp->mode.lreq.pri = 0; 1917 fp->mode.lreq.src = 0; 1918 fp->mode.lreq.len = htons(8); 1919 fp->mode.lreq.extcode = htons(FW_LREQ_CMPSWAP); 1920 xfer->dst = FWLOCALBUS | fc->irm; 1921 fp->mode.lreq.dst = htons(xfer->dst); 1922 fp->mode.lreq.dest_lo = htonl(0xf0000000 | BUS_MGR_ID); 1923 fp->mode.lreq.payload[0] = htonl(0x3f); 1924 fp->mode.lreq.payload[1] = htonl(fc->nodeid); 1925 xfer->act_type = FWACT_XFER; 1926 xfer->act.hand = fw_try_bmr_callback; 1927 1928 err = fw_asyreq(fc, -1, xfer); 1929 if(err){ 1930 fw_xfer_free( xfer); 1931 return; 1932 } 1933 return; 1934 } 1935 1936 #ifdef FW_VMACCESS 1937 /* 1938 * Software implementation for physical memory block access. 1939 * XXX:Too slow, usef for debug purpose only. 1940 */ 1941 static void 1942 fw_vmaccess(struct fw_xfer *xfer){ 1943 struct fw_pkt *rfp, *sfp = NULL; 1944 u_int32_t *ld = (u_int32_t *)(xfer->recv.buf + xfer->recv.off); 1945 1946 printf("vmaccess spd:%2x len:%03x %d data:%08x %08x %08x %08x\n", 1947 xfer->spd, xfer->recv.len, xfer->recv.off, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 1948 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 1949 if(xfer->resp != 0){ 1950 fw_xfer_free( xfer); 1951 return; 1952 } 1953 if(xfer->recv.buf == NULL){ 1954 fw_xfer_free( xfer); 1955 return; 1956 } 1957 rfp = (struct fw_pkt *)xfer->recv.buf; 1958 switch(rfp->mode.hdr.tcode){ 1959 /* XXX need fix for 64bit arch */ 1960 case FWTCODE_WREQB: 1961 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 1962 xfer->send.len = 12; 1963 sfp = (struct fw_pkt *)xfer->send.buf; 1964 bcopy(rfp->mode.wreqb.payload, 1965 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len)); 1966 sfp->mode.wres.tcode = FWTCODE_WRES; 1967 sfp->mode.wres.rtcode = 0; 1968 break; 1969 case FWTCODE_WREQQ: 1970 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 1971 xfer->send.len = 12; 1972 sfp->mode.wres.tcode = FWTCODE_WRES; 1973 *((u_int32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data; 1974 sfp->mode.wres.rtcode = 0; 1975 break; 1976 case FWTCODE_RREQB: 1977 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_FW, M_NOWAIT); 1978 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len); 1979 sfp = (struct fw_pkt *)xfer->send.buf; 1980 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo), 1981 sfp->mode.rresb.payload, (u_int16_t)ntohs(rfp->mode.rreqb.len)); 1982 sfp->mode.rresb.tcode = FWTCODE_RRESB; 1983 sfp->mode.rresb.len = rfp->mode.rreqb.len; 1984 sfp->mode.rresb.rtcode = 0; 1985 sfp->mode.rresb.extcode = 0; 1986 break; 1987 case FWTCODE_RREQQ: 1988 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 1989 xfer->send.len = 16; 1990 sfp = (struct fw_pkt *)xfer->send.buf; 1991 sfp->mode.rresq.data = *(u_int32_t *)(ntohl(rfp->mode.rreqq.dest_lo)); 1992 sfp->mode.wres.tcode = FWTCODE_RRESQ; 1993 sfp->mode.rresb.rtcode = 0; 1994 break; 1995 default: 1996 fw_xfer_free( xfer); 1997 return; 1998 } 1999 xfer->send.off = 0; 2000 sfp->mode.hdr.dst = rfp->mode.hdr.src; 2001 xfer->dst = ntohs(rfp->mode.hdr.src); 2002 xfer->act.hand = fw_xfer_free; 2003 xfer->retry_req = fw_asybusy; 2004 2005 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt; 2006 sfp->mode.hdr.pri = 0; 2007 2008 fw_asyreq(xfer->fc, -1, xfer); 2009 /**/ 2010 return; 2011 } 2012 #endif 2013 2014 /* 2015 * CRC16 check-sum for IEEE1394 register blocks. 2016 */ 2017 u_int16_t 2018 fw_crc16(u_int32_t *ptr, u_int32_t len){ 2019 u_int32_t i, sum, crc = 0; 2020 int shift; 2021 len = (len + 3) & ~3; 2022 for(i = 0 ; i < len ; i+= 4){ 2023 for( shift = 28 ; shift >= 0 ; shift -= 4){ 2024 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf; 2025 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum; 2026 } 2027 crc &= 0xffff; 2028 } 2029 return((u_int16_t) crc); 2030 } 2031 2032 int 2033 fw_bmr(struct firewire_comm *fc) 2034 { 2035 struct fw_device fwdev; 2036 int cmstr; 2037 2038 /* XXX Assume that the current root node is cycle master capable */ 2039 cmstr = fc->max_node; 2040 /* If I am the bus manager, optimize gapcount */ 2041 if(fc->max_hop <= MAX_GAPHOP ){ 2042 fw_phy_config(fc, (fc->max_node > 0)?cmstr:-1, 2043 gap_cnt[fc->max_hop]); 2044 } 2045 /* If we are the cycle master, nothing to do */ 2046 if (cmstr == fc->nodeid) 2047 return 0; 2048 /* Bus probe has not finished, make dummy fwdev for cmstr */ 2049 bzero(&fwdev, sizeof(fwdev)); 2050 fwdev.fc = fc; 2051 fwdev.dst = cmstr; 2052 fwdev.speed = 0; 2053 fwdev.maxrec = 8; /* 512 */ 2054 fwdev.status = FWDEVINIT; 2055 /* Set cmstr bit on the cycle master */ 2056 fwmem_write_quad(&fwdev, NULL, 0/*spd*/, 2057 0xffff, 0xf0000000 | STATE_SET, 1 << 16, 2058 fw_asy_callback_free); 2059 2060 return 0; 2061 } 2062 2063 DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,0,0); 2064 MODULE_VERSION(firewire, 1); 2065