firewire.c revision 118455
1/* 2 * Copyright (c) 2003 Hidetoshi Shimokawa 3 * Copyright (c) 1998-2002 Katsushi Kobayashi and Hidetoshi Shimokawa 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the acknowledgement as bellow: 16 * 17 * This product includes software developed by K. Kobayashi and H. Shimokawa 18 * 19 * 4. The name of the author may not be used to endorse or promote products 20 * derived from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 24 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 25 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 26 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 27 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 28 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 30 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 31 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 32 * POSSIBILITY OF SUCH DAMAGE. 33 * 34 * $FreeBSD: head/sys/dev/firewire/firewire.c 118455 2003-08-05 03:11:39Z simokawa $ 35 * 36 */ 37 38#include <sys/param.h> 39#include <sys/systm.h> 40#include <sys/types.h> 41 42#include <sys/kernel.h> 43#include <sys/malloc.h> 44#include <sys/conf.h> 45#include <sys/sysctl.h> 46 47#if __FreeBSD_version < 500000 48#include <machine/clock.h> /* for DELAY() */ 49#endif 50 51#include <sys/bus.h> /* used by smbus and newbus */ 52#include <machine/bus.h> 53 54#include <dev/firewire/firewire.h> 55#include <dev/firewire/firewirereg.h> 56#include <dev/firewire/fwmem.h> 57#include <dev/firewire/iec13213.h> 58#include <dev/firewire/iec68113.h> 59 60struct crom_src_buf { 61 struct crom_src src; 62 struct crom_chunk root; 63 struct crom_chunk vendor; 64 struct crom_chunk hw; 65}; 66 67int firewire_debug=0, try_bmr=1; 68SYSCTL_INT(_debug, OID_AUTO, firewire_debug, CTLFLAG_RW, &firewire_debug, 0, 69 "FireWire driver debug flag"); 70SYSCTL_NODE(_hw, OID_AUTO, firewire, CTLFLAG_RD, 0, "FireWire Subsystem"); 71SYSCTL_INT(_hw_firewire, OID_AUTO, try_bmr, CTLFLAG_RW, &try_bmr, 0, 72 "Try to be a bus manager"); 73 74MALLOC_DEFINE(M_FW, "firewire", "FireWire"); 75MALLOC_DEFINE(M_FWXFER, "fw_xfer", "XFER/FireWire"); 76 77#define FW_MAXASYRTY 4 78#define FW_MAXDEVRCNT 4 79 80devclass_t firewire_devclass; 81 82static int firewire_match __P((device_t)); 83static int firewire_attach __P((device_t)); 84static int firewire_detach __P((device_t)); 85static int firewire_resume __P((device_t)); 86#if 0 87static int firewire_shutdown __P((device_t)); 88#endif 89static device_t firewire_add_child __P((device_t, int, const char *, int)); 90static void fw_try_bmr __P((void *)); 91static void fw_try_bmr_callback __P((struct fw_xfer *)); 92static void fw_asystart __P((struct fw_xfer *)); 93static int fw_get_tlabel __P((struct firewire_comm *, struct fw_xfer *)); 94static void fw_bus_probe __P((struct firewire_comm *)); 95static void fw_bus_explore __P((struct firewire_comm *)); 96static void fw_bus_explore_callback __P((struct fw_xfer *)); 97static void fw_attach_dev __P((struct firewire_comm *)); 98#ifdef FW_VMACCESS 99static void fw_vmaccess __P((struct fw_xfer *)); 100#endif 101struct fw_xfer *asyreqq __P((struct firewire_comm *, u_int8_t, u_int8_t, u_int8_t, 102 u_int32_t, u_int32_t, void (*)__P((struct fw_xfer *)))); 103static int fw_bmr __P((struct firewire_comm *)); 104 105static device_method_t firewire_methods[] = { 106 /* Device interface */ 107 DEVMETHOD(device_probe, firewire_match), 108 DEVMETHOD(device_attach, firewire_attach), 109 DEVMETHOD(device_detach, firewire_detach), 110 DEVMETHOD(device_suspend, bus_generic_suspend), 111 DEVMETHOD(device_resume, firewire_resume), 112 DEVMETHOD(device_shutdown, bus_generic_shutdown), 113 114 /* Bus interface */ 115 DEVMETHOD(bus_add_child, firewire_add_child), 116 DEVMETHOD(bus_print_child, bus_generic_print_child), 117 118 { 0, 0 } 119}; 120char linkspeed[7][0x10]={"S100","S200","S400","S800","S1600","S3200","Unknown"}; 121 122/* IEEE-1394a Table C-2 Gap count as a function of hops*/ 123#define MAX_GAPHOP 15 124u_int gap_cnt[] = { 5, 5, 7, 8, 10, 13, 16, 18, 125 21, 24, 26, 29, 32, 35, 37, 40}; 126 127static driver_t firewire_driver = { 128 "firewire", 129 firewire_methods, 130 sizeof(struct firewire_softc), 131}; 132 133/* 134 * Lookup fwdev by node id. 135 */ 136struct fw_device * 137fw_noderesolve_nodeid(struct firewire_comm *fc, int dst) 138{ 139 struct fw_device *fwdev; 140 int s; 141 142 s = splfw(); 143 STAILQ_FOREACH(fwdev, &fc->devices, link) 144 if (fwdev->dst == dst) 145 break; 146 splx(s); 147 148 if(fwdev == NULL) return NULL; 149 if(fwdev->status == FWDEVINVAL) return NULL; 150 return fwdev; 151} 152 153/* 154 * Lookup fwdev by EUI64. 155 */ 156struct fw_device * 157fw_noderesolve_eui64(struct firewire_comm *fc, struct fw_eui64 *eui) 158{ 159 struct fw_device *fwdev; 160 int s; 161 162 s = splfw(); 163 STAILQ_FOREACH(fwdev, &fc->devices, link) 164 if (FW_EUI64_EQUAL(fwdev->eui, *eui)) 165 break; 166 splx(s); 167 168 if(fwdev == NULL) return NULL; 169 if(fwdev->status == FWDEVINVAL) return NULL; 170 return fwdev; 171} 172 173/* 174 * Async. request procedure for userland application. 175 */ 176int 177fw_asyreq(struct firewire_comm *fc, int sub, struct fw_xfer *xfer) 178{ 179 int err = 0; 180 struct fw_xferq *xferq; 181 int tl = 0, len; 182 struct fw_pkt *fp; 183 int tcode; 184 struct tcode_info *info; 185 186 if(xfer == NULL) return EINVAL; 187 if(xfer->send.len > MAXREC(fc->maxrec)){ 188 printf("send.len > maxrec\n"); 189 return EINVAL; 190 } 191 if(xfer->act.hand == NULL){ 192 printf("act.hand == NULL\n"); 193 return EINVAL; 194 } 195 fp = (struct fw_pkt *)xfer->send.buf; 196 197 tcode = fp->mode.common.tcode & 0xf; 198 info = &fc->tcode[tcode]; 199 if (info->flag == 0) { 200 printf("invalid tcode=%d\n", tcode); 201 return EINVAL; 202 } 203 if (info->flag & FWTI_REQ) 204 xferq = fc->atq; 205 else 206 xferq = fc->ats; 207 len = info->hdr_len; 208 if (info->flag & FWTI_BLOCK_STR) 209 len += fp->mode.stream.len; 210 else if (info->flag & FWTI_BLOCK_ASY) 211 len += fp->mode.rresb.len; 212 if( len > xfer->send.len ){ 213 printf("len(%d) > send.len(%d) (tcode=%d)\n", 214 len, xfer->send.len, tcode); 215 return EINVAL; 216 } 217 xfer->send.len = len; 218 219 if(xferq->start == NULL){ 220 printf("xferq->start == NULL\n"); 221 return EINVAL; 222 } 223 if(!(xferq->queued < xferq->maxq)){ 224 device_printf(fc->bdev, "Discard a packet (queued=%d)\n", 225 xferq->queued); 226 return EINVAL; 227 } 228 229 230 if (info->flag & FWTI_TLABEL) { 231 if((tl = fw_get_tlabel(fc, xfer)) == -1 ) 232 return EIO; 233 fp->mode.hdr.tlrt = tl << 2; 234 } 235 236 xfer->tl = tl; 237 xfer->resp = 0; 238 xfer->fc = fc; 239 xfer->q = xferq; 240 xfer->retry_req = fw_asybusy; 241 242 fw_asystart(xfer); 243 return err; 244} 245/* 246 * Wakeup blocked process. 247 */ 248void 249fw_asy_callback(struct fw_xfer *xfer){ 250 wakeup(xfer); 251 return; 252} 253/* 254 * Postpone to later retry. 255 */ 256void fw_asybusy(struct fw_xfer *xfer){ 257 printf("fw_asybusy\n"); 258/* 259 xfer->ch = timeout((timeout_t *)fw_asystart, (void *)xfer, 20000); 260*/ 261 DELAY(20000); 262 fw_asystart(xfer); 263 return; 264} 265 266/* 267 * Async. request with given xfer structure. 268 */ 269static void 270fw_asystart(struct fw_xfer *xfer) 271{ 272 struct firewire_comm *fc = xfer->fc; 273 int s; 274 if(xfer->retry++ >= fc->max_asyretry){ 275 device_printf(fc->bdev, "max_asyretry exceeded\n"); 276 xfer->resp = EBUSY; 277 xfer->state = FWXF_BUSY; 278 xfer->act.hand(xfer); 279 return; 280 } 281#if 0 /* XXX allow bus explore packets only after bus rest */ 282 if (fc->status < FWBUSEXPLORE) { 283 xfer->resp = EAGAIN; 284 xfer->state = FWXF_BUSY; 285 if (xfer->act.hand != NULL) 286 xfer->act.hand(xfer); 287 return; 288 } 289#endif 290 s = splfw(); 291 xfer->state = FWXF_INQ; 292 STAILQ_INSERT_TAIL(&xfer->q->q, xfer, link); 293 xfer->q->queued ++; 294 splx(s); 295 /* XXX just queue for mbuf */ 296 if (xfer->mbuf == NULL) 297 xfer->q->start(fc); 298 return; 299} 300 301static int 302firewire_match( device_t dev ) 303{ 304 device_set_desc(dev, "IEEE1394(FireWire) bus"); 305 return -140; 306} 307 308static void 309firewire_xfer_timeout(struct firewire_comm *fc) 310{ 311 struct fw_xfer *xfer; 312 struct tlabel *tl; 313 struct timeval tv; 314 struct timeval split_timeout; 315 int i, s; 316 317 split_timeout.tv_sec = 6; 318 split_timeout.tv_usec = 0; 319 320 microtime(&tv); 321 timevalsub(&tv, &split_timeout); 322 323 s = splfw(); 324 for (i = 0; i < 0x40; i ++) { 325 while ((tl = STAILQ_FIRST(&fc->tlabels[i])) != NULL) { 326 xfer = tl->xfer; 327 if (timevalcmp(&xfer->tv, &tv, >)) 328 /* the rests are newer than this */ 329 break; 330 device_printf(fc->bdev, 331 "split transaction timeout dst=0x%x tl=0x%x state=%d\n", 332 xfer->dst, i, xfer->state); 333 xfer->resp = ETIMEDOUT; 334 STAILQ_REMOVE_HEAD(&fc->tlabels[i], link); 335 fw_xfer_done(xfer); 336 } 337 } 338 splx(s); 339} 340 341static void 342firewire_watchdog(void *arg) 343{ 344 struct firewire_comm *fc; 345 346 fc = (struct firewire_comm *)arg; 347 firewire_xfer_timeout(fc); 348 fc->timeout(fc); 349 callout_reset(&fc->timeout_callout, hz, 350 (void *)firewire_watchdog, (void *)fc); 351} 352 353/* 354 * The attach routine. 355 */ 356static int 357firewire_attach(device_t dev) 358{ 359 int unit; 360 struct firewire_softc *sc = device_get_softc(dev); 361 device_t pa = device_get_parent(dev); 362 struct firewire_comm *fc; 363 364 fc = (struct firewire_comm *)device_get_softc(pa); 365 sc->fc = fc; 366 fc->status = FWBUSNOTREADY; 367 368 unit = device_get_unit(dev); 369 if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA; 370 371 fwdev_makedev(sc); 372 373 CALLOUT_INIT(&sc->fc->timeout_callout); 374 CALLOUT_INIT(&sc->fc->bmr_callout); 375 CALLOUT_INIT(&sc->fc->retry_probe_callout); 376 CALLOUT_INIT(&sc->fc->busprobe_callout); 377 378 callout_reset(&sc->fc->timeout_callout, hz, 379 (void *)firewire_watchdog, (void *)sc->fc); 380 381 /* Locate our children */ 382 bus_generic_probe(dev); 383 384 /* launch attachement of the added children */ 385 bus_generic_attach(dev); 386 387 /* bus_reset */ 388 fc->ibr(fc); 389 390 return 0; 391} 392 393/* 394 * Attach it as child. 395 */ 396static device_t 397firewire_add_child(device_t dev, int order, const char *name, int unit) 398{ 399 device_t child; 400 struct firewire_softc *sc; 401 402 sc = (struct firewire_softc *)device_get_softc(dev); 403 child = device_add_child(dev, name, unit); 404 if (child) { 405 device_set_ivars(child, sc->fc); 406 device_probe_and_attach(child); 407 } 408 409 return child; 410} 411 412static int 413firewire_resume(device_t dev) 414{ 415 struct firewire_softc *sc; 416 417 sc = (struct firewire_softc *)device_get_softc(dev); 418 sc->fc->status = FWBUSNOTREADY; 419 420 bus_generic_resume(dev); 421 422 return(0); 423} 424 425/* 426 * Dettach it. 427 */ 428static int 429firewire_detach(device_t dev) 430{ 431 struct firewire_softc *sc; 432 struct csrdir *csrd, *next; 433 struct fw_device *fwdev, *fwdev_next; 434 int err; 435 436 sc = (struct firewire_softc *)device_get_softc(dev); 437 if ((err = fwdev_destroydev(sc)) != 0) 438 return err; 439 440 if ((err = bus_generic_detach(dev)) != 0) 441 return err; 442 443 callout_stop(&sc->fc->timeout_callout); 444 callout_stop(&sc->fc->bmr_callout); 445 callout_stop(&sc->fc->retry_probe_callout); 446 callout_stop(&sc->fc->busprobe_callout); 447 448 /* XXX xfree_free and untimeout on all xfers */ 449 for (fwdev = STAILQ_FIRST(&sc->fc->devices); fwdev != NULL; 450 fwdev = fwdev_next) { 451 fwdev_next = STAILQ_NEXT(fwdev, link); 452 free(fwdev, M_FW); 453 } 454 for (csrd = SLIST_FIRST(&sc->fc->csrfree); csrd != NULL; csrd = next) { 455 next = SLIST_NEXT(csrd, link); 456 free(csrd, M_FW); 457 } 458 free(sc->fc->topology_map, M_FW); 459 free(sc->fc->speed_map, M_FW); 460 free(sc->fc->crom_src_buf, M_FW); 461 return(0); 462} 463#if 0 464static int 465firewire_shutdown( device_t dev ) 466{ 467 return 0; 468} 469#endif 470 471 472static void 473fw_xferq_drain(struct fw_xferq *xferq) 474{ 475 struct fw_xfer *xfer; 476 477 while ((xfer = STAILQ_FIRST(&xferq->q)) != NULL) { 478 STAILQ_REMOVE_HEAD(&xferq->q, link); 479 xferq->queued --; 480 xfer->resp = EAGAIN; 481 fw_xfer_done(xfer); 482 } 483} 484 485void 486fw_drain_txq(struct firewire_comm *fc) 487{ 488 int i; 489 490 fw_xferq_drain(fc->atq); 491 fw_xferq_drain(fc->ats); 492 for(i = 0; i < fc->nisodma; i++) 493 fw_xferq_drain(fc->it[i]); 494} 495 496static void 497fw_reset_csr(struct firewire_comm *fc) 498{ 499 int i; 500 501 CSRARC(fc, STATE_CLEAR) 502 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 503 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 504 CSRARC(fc, NODE_IDS) = 0x3f; 505 506 CSRARC(fc, TOPO_MAP + 8) = 0; 507 fc->irm = -1; 508 509 fc->max_node = -1; 510 511 for(i = 2; i < 0x100/4 - 2 ; i++){ 512 CSRARC(fc, SPED_MAP + i * 4) = 0; 513 } 514 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 515 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 516 CSRARC(fc, RESET_START) = 0; 517 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0; 518 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19; 519 CSRARC(fc, CYCLE_TIME) = 0x0; 520 CSRARC(fc, BUS_TIME) = 0x0; 521 CSRARC(fc, BUS_MGR_ID) = 0x3f; 522 CSRARC(fc, BANDWIDTH_AV) = 4915; 523 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff; 524 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff; 525 CSRARC(fc, IP_CHANNELS) = (1 << 31); 526 527 CSRARC(fc, CONF_ROM) = 0x04 << 24; 528 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */ 529 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 | 530 1 << 28 | 0xff << 16 | 0x09 << 8; 531 CSRARC(fc, CONF_ROM + 0xc) = 0; 532 533/* DV depend CSRs see blue book */ 534 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON; 535 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON; 536 537 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 ); 538 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 539} 540 541static void 542fw_init_crom(struct firewire_comm *fc) 543{ 544 struct crom_src *src; 545 546 fc->crom_src_buf = (struct crom_src_buf *) 547 malloc(sizeof(struct crom_src_buf), M_FW, M_WAITOK | M_ZERO); 548 if (fc->crom_src_buf == NULL) 549 return; 550 551 src = &fc->crom_src_buf->src; 552 bzero(src, sizeof(struct crom_src)); 553 554 /* BUS info sample */ 555 src->hdr.info_len = 4; 556 557 src->businfo.bus_name = CSR_BUS_NAME_IEEE1394; 558 559 src->businfo.irmc = 1; 560 src->businfo.cmc = 1; 561 src->businfo.isc = 1; 562 src->businfo.bmc = 1; 563 src->businfo.pmc = 0; 564 src->businfo.cyc_clk_acc = 100; 565 src->businfo.max_rec = fc->maxrec; 566 src->businfo.max_rom = MAXROM_4; 567 src->businfo.generation = 1; 568 src->businfo.link_spd = fc->speed; 569 570 src->businfo.eui64.hi = fc->eui.hi; 571 src->businfo.eui64.lo = fc->eui.lo; 572 573 STAILQ_INIT(&src->chunk_list); 574 575 fc->crom_src = src; 576 fc->crom_root = &fc->crom_src_buf->root; 577} 578 579static void 580fw_reset_crom(struct firewire_comm *fc) 581{ 582 struct crom_src_buf *buf; 583 struct crom_src *src; 584 struct crom_chunk *root; 585 586 if (fc->crom_src_buf == NULL) 587 fw_init_crom(fc); 588 589 buf = fc->crom_src_buf; 590 src = fc->crom_src; 591 root = fc->crom_root; 592 593 STAILQ_INIT(&src->chunk_list); 594 595 bzero(root, sizeof(struct crom_chunk)); 596 crom_add_chunk(src, NULL, root, 0); 597 crom_add_entry(root, CSRKEY_NCAP, 0x0083c0); /* XXX */ 598 /* private company_id */ 599 crom_add_entry(root, CSRKEY_VENDOR, CSRVAL_VENDOR_PRIVATE); 600 crom_add_simple_text(src, root, &buf->vendor, "FreeBSD Project"); 601 crom_add_entry(root, CSRKEY_HW, __FreeBSD_version); 602 crom_add_simple_text(src, root, &buf->hw, hostname); 603} 604 605/* 606 * Called after bus reset. 607 */ 608void 609fw_busreset(struct firewire_comm *fc) 610{ 611 struct firewire_dev_comm *fdc; 612 struct crom_src *src; 613 device_t *devlistp; 614 void *newrom; 615 int i, devcnt; 616 617 switch(fc->status){ 618 case FWBUSMGRELECT: 619 callout_stop(&fc->bmr_callout); 620 break; 621 default: 622 break; 623 } 624 fc->status = FWBUSRESET; 625 fw_reset_csr(fc); 626 fw_reset_crom(fc); 627 628 if (device_get_children(fc->bdev, &devlistp, &devcnt) == 0) { 629 for( i = 0 ; i < devcnt ; i++) 630 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 631 fdc = device_get_softc(devlistp[i]); 632 if (fdc->post_busreset != NULL) 633 fdc->post_busreset(fdc); 634 } 635 free(devlistp, M_TEMP); 636 } 637 638 newrom = malloc(CROMSIZE, M_FW, M_NOWAIT | M_ZERO); 639 src = &fc->crom_src_buf->src; 640 crom_load(src, (u_int32_t *)newrom, CROMSIZE); 641 if (bcmp(newrom, fc->config_rom, CROMSIZE) != 0) { 642 /* bump generation and reload */ 643 src->businfo.generation ++; 644 /* generation must be between 0x2 and 0xF */ 645 if (src->businfo.generation < 2) 646 src->businfo.generation ++; 647 crom_load(src, (u_int32_t *)newrom, CROMSIZE); 648 bcopy(newrom, (void *)fc->config_rom, CROMSIZE); 649 } 650 free(newrom, M_FW); 651} 652 653/* Call once after reboot */ 654void fw_init(struct firewire_comm *fc) 655{ 656 int i; 657 struct csrdir *csrd; 658#ifdef FW_VMACCESS 659 struct fw_xfer *xfer; 660 struct fw_bind *fwb; 661#endif 662 663 fc->max_asyretry = FW_MAXASYRTY; 664 665 fc->arq->queued = 0; 666 fc->ars->queued = 0; 667 fc->atq->queued = 0; 668 fc->ats->queued = 0; 669 670 fc->arq->buf = NULL; 671 fc->ars->buf = NULL; 672 fc->atq->buf = NULL; 673 fc->ats->buf = NULL; 674 675 fc->arq->flag = 0; 676 fc->ars->flag = 0; 677 fc->atq->flag = 0; 678 fc->ats->flag = 0; 679 680 STAILQ_INIT(&fc->atq->q); 681 STAILQ_INIT(&fc->ats->q); 682 683 for( i = 0 ; i < fc->nisodma ; i ++ ){ 684 fc->it[i]->queued = 0; 685 fc->ir[i]->queued = 0; 686 687 fc->it[i]->start = NULL; 688 fc->ir[i]->start = NULL; 689 690 fc->it[i]->buf = NULL; 691 fc->ir[i]->buf = NULL; 692 693 fc->it[i]->flag = FWXFERQ_STREAM; 694 fc->ir[i]->flag = FWXFERQ_STREAM; 695 696 STAILQ_INIT(&fc->it[i]->q); 697 STAILQ_INIT(&fc->ir[i]->q); 698 699 STAILQ_INIT(&fc->it[i]->binds); 700 STAILQ_INIT(&fc->ir[i]->binds); 701 } 702 703 fc->arq->maxq = FWMAXQUEUE; 704 fc->ars->maxq = FWMAXQUEUE; 705 fc->atq->maxq = FWMAXQUEUE; 706 fc->ats->maxq = FWMAXQUEUE; 707 708 for( i = 0 ; i < fc->nisodma ; i++){ 709 fc->ir[i]->maxq = FWMAXQUEUE; 710 fc->it[i]->maxq = FWMAXQUEUE; 711 } 712/* Initialize csr registers */ 713 fc->topology_map = (struct fw_topology_map *)malloc( 714 sizeof(struct fw_topology_map), 715 M_FW, M_NOWAIT | M_ZERO); 716 fc->speed_map = (struct fw_speed_map *)malloc( 717 sizeof(struct fw_speed_map), 718 M_FW, M_NOWAIT | M_ZERO); 719 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16; 720 CSRARC(fc, TOPO_MAP + 4) = 1; 721 CSRARC(fc, SPED_MAP) = 0x3f1 << 16; 722 CSRARC(fc, SPED_MAP + 4) = 1; 723 724 STAILQ_INIT(&fc->devices); 725 STAILQ_INIT(&fc->pending); 726 727/* Initialize csr ROM work space */ 728 SLIST_INIT(&fc->ongocsr); 729 SLIST_INIT(&fc->csrfree); 730 for( i = 0 ; i < FWMAXCSRDIR ; i++){ 731 csrd = (struct csrdir *) malloc(sizeof(struct csrdir), M_FW,M_NOWAIT); 732 if(csrd == NULL) break; 733 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 734 } 735 736/* Initialize Async handlers */ 737 STAILQ_INIT(&fc->binds); 738 for( i = 0 ; i < 0x40 ; i++){ 739 STAILQ_INIT(&fc->tlabels[i]); 740 } 741 742/* DV depend CSRs see blue book */ 743#if 0 744 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */ 745 CSRARC(fc, oPCR) = 0x8000007a; 746 for(i = 4 ; i < 0x7c/4 ; i+=4){ 747 CSRARC(fc, i + oPCR) = 0x8000007a; 748 } 749 750 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */ 751 CSRARC(fc, iPCR) = 0x803f0000; 752 for(i = 4 ; i < 0x7c/4 ; i+=4){ 753 CSRARC(fc, i + iPCR) = 0x0; 754 } 755#endif 756 757 fc->crom_src_buf = NULL; 758 759#ifdef FW_VMACCESS 760 xfer = fw_xfer_alloc(); 761 if(xfer == NULL) return; 762 763 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_FW, M_NOWAIT); 764 if(fwb == NULL){ 765 fw_xfer_free(xfer); 766 } 767 xfer->act.hand = fw_vmaccess; 768 xfer->fc = fc; 769 xfer->sc = NULL; 770 771 fwb->start_hi = 0x2; 772 fwb->start_lo = 0; 773 fwb->addrlen = 0xffffffff; 774 fwb->xfer = xfer; 775 fw_bindadd(fc, fwb); 776#endif 777} 778 779/* 780 * To lookup binded process from IEEE1394 address. 781 */ 782struct fw_bind * 783fw_bindlookup(struct firewire_comm *fc, u_int32_t dest_hi, u_int32_t dest_lo) 784{ 785 struct fw_bind *tfw; 786 for(tfw = STAILQ_FIRST(&fc->binds) ; tfw != NULL ; 787 tfw = STAILQ_NEXT(tfw, fclist)){ 788 if (tfw->act_type != FWACT_NULL && 789 tfw->start_hi == dest_hi && 790 tfw->start_lo <= dest_lo && 791 (tfw->start_lo + tfw->addrlen) > dest_lo){ 792 return(tfw); 793 } 794 } 795 return(NULL); 796} 797 798/* 799 * To bind IEEE1394 address block to process. 800 */ 801int 802fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb) 803{ 804 struct fw_bind *tfw, *tfw2 = NULL; 805 int err = 0; 806 tfw = STAILQ_FIRST(&fc->binds); 807 if(tfw == NULL){ 808 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 809 goto out; 810 } 811 if((tfw->start_hi > fwb->start_hi) || 812 (tfw->start_hi == fwb->start_hi && 813 (tfw->start_lo > (fwb->start_lo + fwb->addrlen)))){ 814 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 815 goto out; 816 } 817 for(; tfw != NULL; tfw = STAILQ_NEXT(tfw, fclist)){ 818 if((tfw->start_hi < fwb->start_hi) || 819 (tfw->start_hi == fwb->start_hi && 820 (tfw->start_lo + tfw->addrlen) < fwb->start_lo)){ 821 tfw2 = STAILQ_NEXT(tfw, fclist); 822 if(tfw2 == NULL) 823 break; 824 if((tfw2->start_hi > fwb->start_hi) || 825 (tfw2->start_hi == fwb->start_hi && 826 tfw2->start_lo > (fwb->start_lo + fwb->addrlen))){ 827 break; 828 }else{ 829 err = EBUSY; 830 goto out; 831 } 832 } 833 } 834 if(tfw != NULL){ 835 STAILQ_INSERT_AFTER(&fc->binds, tfw, fwb, fclist); 836 }else{ 837 STAILQ_INSERT_TAIL(&fc->binds, fwb, fclist); 838 } 839out: 840 if (!err && fwb->act_type == FWACT_CH) 841 STAILQ_INSERT_HEAD(&fc->ir[fwb->sub]->binds, fwb, chlist); 842 return err; 843} 844 845/* 846 * To free IEEE1394 address block. 847 */ 848int 849fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb) 850{ 851 int s; 852 struct fw_xfer *xfer, *next; 853 854 s = splfw(); 855 /* shall we check the existance? */ 856 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist); 857 /* shall we do this? */ 858 for (xfer = STAILQ_FIRST(&fwb->xferlist); xfer != NULL; xfer = next) { 859 next = STAILQ_NEXT(xfer, link); 860 fw_xfer_free(xfer); 861 } 862 STAILQ_INIT(&fwb->xferlist); 863 864 splx(s); 865 return 0; 866} 867 868/* 869 * To free transaction label. 870 */ 871static void 872fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer) 873{ 874 struct tlabel *tl; 875 int s = splfw(); 876 877 for( tl = STAILQ_FIRST(&fc->tlabels[xfer->tl]); tl != NULL; 878 tl = STAILQ_NEXT(tl, link)){ 879 if(tl->xfer == xfer){ 880 STAILQ_REMOVE(&fc->tlabels[xfer->tl], tl, tlabel, link); 881 free(tl, M_FW); 882 splx(s); 883 return; 884 } 885 } 886 splx(s); 887 return; 888} 889 890/* 891 * To obtain XFER structure by transaction label. 892 */ 893static struct fw_xfer * 894fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel) 895{ 896 struct fw_xfer *xfer; 897 struct tlabel *tl; 898 int s = splfw(); 899 900 for( tl = STAILQ_FIRST(&fc->tlabels[tlabel]); tl != NULL; 901 tl = STAILQ_NEXT(tl, link)){ 902 if(tl->xfer->dst == node){ 903 xfer = tl->xfer; 904 splx(s); 905 if (firewire_debug > 2) 906 printf("fw_tl2xfer: found tl=%d\n", tlabel); 907 return(xfer); 908 } 909 } 910 if (firewire_debug > 1) 911 printf("fw_tl2xfer: not found tl=%d\n", tlabel); 912 splx(s); 913 return(NULL); 914} 915 916/* 917 * To allocate IEEE1394 XFER structure. 918 */ 919struct fw_xfer * 920fw_xfer_alloc(struct malloc_type *type) 921{ 922 struct fw_xfer *xfer; 923 924 xfer = malloc(sizeof(struct fw_xfer), type, M_NOWAIT | M_ZERO); 925 if (xfer == NULL) 926 return xfer; 927 928 microtime(&xfer->tv); 929 xfer->malloc = type; 930 931 return xfer; 932} 933 934struct fw_xfer * 935fw_xfer_alloc_buf(struct malloc_type *type, int send_len, int recv_len) 936{ 937 struct fw_xfer *xfer; 938 939 xfer = fw_xfer_alloc(type); 940 xfer->send.len = send_len; 941 xfer->recv.len = recv_len; 942 if (xfer == NULL) 943 return(NULL); 944 if (send_len) { 945 xfer->send.buf = malloc(send_len, type, M_NOWAIT | M_ZERO); 946 if (xfer->send.buf == NULL) { 947 fw_xfer_free(xfer); 948 return(NULL); 949 } 950 } 951 if (recv_len) { 952 xfer->recv.buf = malloc(recv_len, type, M_NOWAIT); 953 if (xfer->recv.buf == NULL) { 954 if (xfer->send.buf != NULL) 955 free(xfer->send.buf, type); 956 fw_xfer_free(xfer); 957 return(NULL); 958 } 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 printf("act.hand == NULL\n"); 971 return; 972 } 973 974 if (xfer->fc->status != FWBUSRESET) 975 xfer->act.hand(xfer); 976 else { 977 printf("fw_xfer_done: pending\n"); 978 if (xfer->fc != NULL) 979 STAILQ_INSERT_TAIL(&xfer->fc->pending, xfer, link); 980 else 981 panic("fw_xfer_done: why xfer->fc is NULL?"); 982 } 983} 984 985void 986fw_xfer_unload(struct fw_xfer* xfer) 987{ 988 int s; 989 990 if(xfer == NULL ) return; 991 if(xfer->state == FWXF_INQ){ 992 printf("fw_xfer_free FWXF_INQ\n"); 993 s = splfw(); 994 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link); 995 xfer->q->queued --; 996 splx(s); 997 } 998 if (xfer->fc != NULL) { 999#if 1 1000 if(xfer->state == FWXF_START) 1001 /* 1002 * This could happen if: 1003 * 1. We call fwohci_arcv() before fwohci_txd(). 1004 * 2. firewire_watch() is called. 1005 */ 1006 printf("fw_xfer_free FWXF_START\n"); 1007#endif 1008 fw_tl_free(xfer->fc, xfer); 1009 } 1010 xfer->state = FWXF_INIT; 1011 xfer->resp = 0; 1012 xfer->retry = 0; 1013} 1014/* 1015 * To free IEEE1394 XFER structure. 1016 */ 1017void 1018fw_xfer_free( struct fw_xfer* xfer) 1019{ 1020 if(xfer == NULL ) return; 1021 fw_xfer_unload(xfer); 1022 if(xfer->send.buf != NULL){ 1023 free(xfer->send.buf, xfer->malloc); 1024 } 1025 if(xfer->recv.buf != NULL){ 1026 free(xfer->recv.buf, xfer->malloc); 1027 } 1028 free(xfer, xfer->malloc); 1029} 1030 1031static void 1032fw_asy_callback_free(struct fw_xfer *xfer) 1033{ 1034#if 0 1035 printf("asyreq done state=%d resp=%d\n", 1036 xfer->state, xfer->resp); 1037#endif 1038 fw_xfer_free(xfer); 1039} 1040 1041/* 1042 * To configure PHY. 1043 */ 1044static void 1045fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count) 1046{ 1047 struct fw_xfer *xfer; 1048 struct fw_pkt *fp; 1049 1050 fc->status = FWBUSPHYCONF; 1051 1052 xfer = fw_xfer_alloc_buf(M_FWXFER, 12, 0); 1053 if (xfer == NULL) 1054 return; 1055 xfer->fc = fc; 1056 xfer->retry_req = fw_asybusy; 1057 xfer->act.hand = fw_asy_callback_free; 1058 1059 fp = (struct fw_pkt *)xfer->send.buf; 1060 fp->mode.ld[1] = 0; 1061 if (root_node >= 0) 1062 fp->mode.ld[1] |= (root_node & 0x3f) << 24 | 1 << 23; 1063 if (gap_count >= 0) 1064 fp->mode.ld[1] |= 1 << 22 | (gap_count & 0x3f) << 16; 1065 fp->mode.ld[2] = ~fp->mode.ld[1]; 1066/* XXX Dangerous, how to pass PHY packet to device driver */ 1067 fp->mode.common.tcode |= FWTCODE_PHY; 1068 1069 if (firewire_debug) 1070 printf("send phy_config root_node=%d gap_count=%d\n", 1071 root_node, gap_count); 1072 fw_asyreq(fc, -1, xfer); 1073} 1074 1075#if 0 1076/* 1077 * Dump self ID. 1078 */ 1079static void 1080fw_print_sid(u_int32_t sid) 1081{ 1082 union fw_self_id *s; 1083 s = (union fw_self_id *) &sid; 1084 printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d" 1085 " p0:%d p1:%d p2:%d i:%d m:%d\n", 1086 s->p0.phy_id, s->p0.link_active, s->p0.gap_count, 1087 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender, 1088 s->p0.power_class, s->p0.port0, s->p0.port1, 1089 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets); 1090} 1091#endif 1092 1093/* 1094 * To receive self ID. 1095 */ 1096void fw_sidrcv(struct firewire_comm* fc, u_int32_t *sid, u_int len) 1097{ 1098 u_int32_t *p; 1099 union fw_self_id *self_id; 1100 u_int i, j, node, c_port = 0, i_branch = 0; 1101 1102 fc->sid_cnt = len /(sizeof(u_int32_t) * 2); 1103 fc->status = FWBUSINIT; 1104 fc->max_node = fc->nodeid & 0x3f; 1105 CSRARC(fc, NODE_IDS) = ((u_int32_t)fc->nodeid) << 16; 1106 fc->status = FWBUSCYMELECT; 1107 fc->topology_map->crc_len = 2; 1108 fc->topology_map->generation ++; 1109 fc->topology_map->self_id_count = 0; 1110 fc->topology_map->node_count = 0; 1111 fc->speed_map->generation ++; 1112 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4; 1113 self_id = &fc->topology_map->self_id[0]; 1114 for(i = 0; i < fc->sid_cnt; i ++){ 1115 if (sid[1] != ~sid[0]) { 1116 printf("fw_sidrcv: invalid self-id packet\n"); 1117 sid += 2; 1118 continue; 1119 } 1120 *self_id = *((union fw_self_id *)sid); 1121 fc->topology_map->crc_len++; 1122 if(self_id->p0.sequel == 0){ 1123 fc->topology_map->node_count ++; 1124 c_port = 0; 1125#if 0 1126 fw_print_sid(sid[0]); 1127#endif 1128 node = self_id->p0.phy_id; 1129 if(fc->max_node < node){ 1130 fc->max_node = self_id->p0.phy_id; 1131 } 1132 /* XXX I'm not sure this is the right speed_map */ 1133 fc->speed_map->speed[node][node] 1134 = self_id->p0.phy_speed; 1135 for (j = 0; j < node; j ++) { 1136 fc->speed_map->speed[j][node] 1137 = fc->speed_map->speed[node][j] 1138 = min(fc->speed_map->speed[j][j], 1139 self_id->p0.phy_speed); 1140 } 1141 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) && 1142 (self_id->p0.link_active && self_id->p0.contender)) { 1143 fc->irm = self_id->p0.phy_id; 1144 } 1145 if(self_id->p0.port0 >= 0x2){ 1146 c_port++; 1147 } 1148 if(self_id->p0.port1 >= 0x2){ 1149 c_port++; 1150 } 1151 if(self_id->p0.port2 >= 0x2){ 1152 c_port++; 1153 } 1154 } 1155 if(c_port > 2){ 1156 i_branch += (c_port - 2); 1157 } 1158 sid += 2; 1159 self_id++; 1160 fc->topology_map->self_id_count ++; 1161 } 1162 device_printf(fc->bdev, "%d nodes", fc->max_node + 1); 1163 /* CRC */ 1164 fc->topology_map->crc = fw_crc16( 1165 (u_int32_t *)&fc->topology_map->generation, 1166 fc->topology_map->crc_len * 4); 1167 fc->speed_map->crc = fw_crc16( 1168 (u_int32_t *)&fc->speed_map->generation, 1169 fc->speed_map->crc_len * 4); 1170 /* byteswap and copy to CSR */ 1171 p = (u_int32_t *)fc->topology_map; 1172 for (i = 0; i <= fc->topology_map->crc_len; i++) 1173 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++); 1174 p = (u_int32_t *)fc->speed_map; 1175 CSRARC(fc, SPED_MAP) = htonl(*p++); 1176 CSRARC(fc, SPED_MAP + 4) = htonl(*p++); 1177 /* don't byte-swap u_int8_t array */ 1178 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4); 1179 1180 fc->max_hop = fc->max_node - i_branch; 1181 printf(", maxhop <= %d", fc->max_hop); 1182 1183 if(fc->irm == -1 ){ 1184 printf(", Not found IRM capable node"); 1185 }else{ 1186 printf(", cable IRM = %d", fc->irm); 1187 if (fc->irm == fc->nodeid) 1188 printf(" (me)"); 1189 } 1190 printf("\n"); 1191 1192 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) { 1193 if (fc->irm == fc->nodeid) { 1194 fc->status = FWBUSMGRDONE; 1195 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm); 1196 fw_bmr(fc); 1197 } else { 1198 fc->status = FWBUSMGRELECT; 1199 callout_reset(&fc->bmr_callout, hz/8, 1200 (void *)fw_try_bmr, (void *)fc); 1201 } 1202 } else 1203 fc->status = FWBUSMGRDONE; 1204 1205 callout_reset(&fc->busprobe_callout, hz/4, 1206 (void *)fw_bus_probe, (void *)fc); 1207} 1208 1209/* 1210 * To probe devices on the IEEE1394 bus. 1211 */ 1212static void 1213fw_bus_probe(struct firewire_comm *fc) 1214{ 1215 int s; 1216 struct fw_device *fwdev, *next; 1217 1218 s = splfw(); 1219 fc->status = FWBUSEXPLORE; 1220 fc->retry_count = 0; 1221 1222/* 1223 * Invalidate all devices, just after bus reset. Devices 1224 * to be removed has not been seen longer time. 1225 */ 1226 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1227 next = STAILQ_NEXT(fwdev, link); 1228 if (fwdev->status != FWDEVINVAL) { 1229 fwdev->status = FWDEVINVAL; 1230 fwdev->rcnt = 0; 1231 } else if(fwdev->rcnt < FW_MAXDEVRCNT) { 1232 fwdev->rcnt ++; 1233 } else { 1234 STAILQ_REMOVE(&fc->devices, fwdev, fw_device, link); 1235 free(fwdev, M_FW); 1236 } 1237 } 1238 fc->ongonode = 0; 1239 fc->ongoaddr = CSRROMOFF; 1240 fc->ongodev = NULL; 1241 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1242 fw_bus_explore(fc); 1243 splx(s); 1244} 1245 1246/* 1247 * To collect device informations on the IEEE1394 bus. 1248 */ 1249static void 1250fw_bus_explore(struct firewire_comm *fc ) 1251{ 1252 int err = 0; 1253 struct fw_device *fwdev, *pfwdev, *tfwdev; 1254 u_int32_t addr; 1255 struct fw_xfer *xfer; 1256 struct fw_pkt *fp; 1257 1258 if(fc->status != FWBUSEXPLORE) 1259 return; 1260 1261loop: 1262 if(fc->ongonode == fc->nodeid) fc->ongonode++; 1263 1264 if(fc->ongonode > fc->max_node) goto done; 1265 if(fc->ongonode >= 0x3f) goto done; 1266 1267 /* check link */ 1268 /* XXX we need to check phy_id first */ 1269 if (!fc->topology_map->self_id[fc->ongonode].p0.link_active) { 1270 if (firewire_debug) 1271 printf("node%d: link down\n", fc->ongonode); 1272 fc->ongonode++; 1273 goto loop; 1274 } 1275 1276 if(fc->ongoaddr <= CSRROMOFF && 1277 fc->ongoeui.hi == 0xffffffff && 1278 fc->ongoeui.lo == 0xffffffff ){ 1279 fc->ongoaddr = CSRROMOFF; 1280 addr = 0xf0000000 | fc->ongoaddr; 1281 }else if(fc->ongoeui.hi == 0xffffffff ){ 1282 fc->ongoaddr = CSRROMOFF + 0xc; 1283 addr = 0xf0000000 | fc->ongoaddr; 1284 }else if(fc->ongoeui.lo == 0xffffffff ){ 1285 fc->ongoaddr = CSRROMOFF + 0x10; 1286 addr = 0xf0000000 | fc->ongoaddr; 1287 }else if(fc->ongodev == NULL){ 1288 STAILQ_FOREACH(fwdev, &fc->devices, link) 1289 if (FW_EUI64_EQUAL(fwdev->eui, fc->ongoeui)) 1290 break; 1291 if(fwdev != NULL){ 1292 fwdev->dst = fc->ongonode; 1293 fwdev->status = FWDEVINIT; 1294 fc->ongodev = fwdev; 1295 fc->ongoaddr = CSRROMOFF; 1296 addr = 0xf0000000 | fc->ongoaddr; 1297 goto dorequest; 1298 } 1299 fwdev = malloc(sizeof(struct fw_device), M_FW, 1300 M_NOWAIT | M_ZERO); 1301 if(fwdev == NULL) 1302 return; 1303 fwdev->fc = fc; 1304 fwdev->rommax = 0; 1305 fwdev->dst = fc->ongonode; 1306 fwdev->eui.hi = fc->ongoeui.hi; fwdev->eui.lo = fc->ongoeui.lo; 1307 fwdev->status = FWDEVINIT; 1308 fwdev->speed = fc->speed_map->speed[fc->nodeid][fc->ongonode]; 1309 1310 pfwdev = NULL; 1311 STAILQ_FOREACH(tfwdev, &fc->devices, link) { 1312 if (tfwdev->eui.hi > fwdev->eui.hi || 1313 (tfwdev->eui.hi == fwdev->eui.hi && 1314 tfwdev->eui.lo > fwdev->eui.lo)) 1315 break; 1316 pfwdev = tfwdev; 1317 } 1318 if (pfwdev == NULL) 1319 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link); 1320 else 1321 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link); 1322 1323 device_printf(fc->bdev, "New %s device ID:%08x%08x\n", 1324 linkspeed[fwdev->speed], 1325 fc->ongoeui.hi, fc->ongoeui.lo); 1326 1327 fc->ongodev = fwdev; 1328 fc->ongoaddr = CSRROMOFF; 1329 addr = 0xf0000000 | fc->ongoaddr; 1330 }else{ 1331 addr = 0xf0000000 | fc->ongoaddr; 1332 } 1333dorequest: 1334#if 0 1335 xfer = asyreqq(fc, FWSPD_S100, 0, 0, 1336 ((FWLOCALBUS | fc->ongonode) << 16) | 0xffff , addr, 1337 fw_bus_explore_callback); 1338 if(xfer == NULL) goto done; 1339#else 1340 xfer = fw_xfer_alloc_buf(M_FWXFER, 16, 16); 1341 if(xfer == NULL){ 1342 goto done; 1343 } 1344 xfer->spd = 0; 1345 fp = (struct fw_pkt *)xfer->send.buf; 1346 fp->mode.rreqq.dest_hi = 0xffff; 1347 fp->mode.rreqq.tlrt = 0; 1348 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1349 fp->mode.rreqq.pri = 0; 1350 fp->mode.rreqq.src = 0; 1351 xfer->dst = FWLOCALBUS | fc->ongonode; 1352 fp->mode.rreqq.dst = xfer->dst; 1353 fp->mode.rreqq.dest_lo = addr; 1354 xfer->act.hand = fw_bus_explore_callback; 1355 1356 if (firewire_debug) 1357 printf("node%d: explore addr=0x%x\n", 1358 fc->ongonode, fc->ongoaddr); 1359 err = fw_asyreq(fc, -1, xfer); 1360 if(err){ 1361 fw_xfer_free( xfer); 1362 return; 1363 } 1364#endif 1365 return; 1366done: 1367 /* fw_attach_devs */ 1368 fc->status = FWBUSEXPDONE; 1369 if (firewire_debug) 1370 printf("bus_explore done\n"); 1371 fw_attach_dev(fc); 1372 return; 1373 1374} 1375 1376/* Portable Async. request read quad */ 1377struct fw_xfer * 1378asyreqq(struct firewire_comm *fc, u_int8_t spd, u_int8_t tl, u_int8_t rt, 1379 u_int32_t addr_hi, u_int32_t addr_lo, 1380 void (*hand) __P((struct fw_xfer*))) 1381{ 1382 struct fw_xfer *xfer; 1383 struct fw_pkt *fp; 1384 int err; 1385 1386 xfer = fw_xfer_alloc_buf(M_FWXFER, 16, 16); 1387 if (xfer == NULL) 1388 return NULL; 1389 1390 xfer->spd = spd; /* XXX:min(spd, fc->spd) */ 1391 fp = (struct fw_pkt *)xfer->send.buf; 1392 fp->mode.rreqq.dest_hi = addr_hi & 0xffff; 1393 if(tl & FWP_TL_VALID){ 1394 fp->mode.rreqq.tlrt = (tl & 0x3f) << 2; 1395 }else{ 1396 fp->mode.rreqq.tlrt = 0; 1397 } 1398 fp->mode.rreqq.tlrt |= rt & 0x3; 1399 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1400 fp->mode.rreqq.pri = 0; 1401 fp->mode.rreqq.src = 0; 1402 xfer->dst = addr_hi >> 16; 1403 fp->mode.rreqq.dst = xfer->dst; 1404 fp->mode.rreqq.dest_lo = addr_lo; 1405 xfer->act.hand = hand; 1406 1407 err = fw_asyreq(fc, -1, xfer); 1408 if(err){ 1409 fw_xfer_free( xfer); 1410 return NULL; 1411 } 1412 return xfer; 1413} 1414 1415/* 1416 * Callback for the IEEE1394 bus information collection. 1417 */ 1418static void 1419fw_bus_explore_callback(struct fw_xfer *xfer) 1420{ 1421 struct firewire_comm *fc; 1422 struct fw_pkt *sfp,*rfp; 1423 struct csrhdr *chdr; 1424 struct csrdir *csrd; 1425 struct csrreg *csrreg; 1426 u_int32_t offset; 1427 1428 1429 if(xfer == NULL) { 1430 printf("xfer == NULL\n"); 1431 return; 1432 } 1433 fc = xfer->fc; 1434 1435 if (firewire_debug) 1436 printf("node%d: callback addr=0x%x\n", 1437 fc->ongonode, fc->ongoaddr); 1438 1439 if(xfer->resp != 0){ 1440 printf("node%d: resp=%d addr=0x%x\n", 1441 fc->ongonode, xfer->resp, fc->ongoaddr); 1442 goto errnode; 1443 } 1444 1445 if(xfer->send.buf == NULL){ 1446 printf("node%d: send.buf=NULL addr=0x%x\n", 1447 fc->ongonode, fc->ongoaddr); 1448 goto errnode; 1449 } 1450 sfp = (struct fw_pkt *)xfer->send.buf; 1451 1452 if(xfer->recv.buf == NULL){ 1453 printf("node%d: recv.buf=NULL addr=0x%x\n", 1454 fc->ongonode, fc->ongoaddr); 1455 goto errnode; 1456 } 1457 rfp = (struct fw_pkt *)xfer->recv.buf; 1458#if 0 1459 { 1460 u_int32_t *qld; 1461 int i; 1462 qld = (u_int32_t *)xfer->recv.buf; 1463 printf("len:%d\n", xfer->recv.len); 1464 for( i = 0 ; i <= xfer->recv.len && i < 32; i+= 4){ 1465 printf("0x%08x ", rfp->mode.ld[i/4]); 1466 if((i % 16) == 15) printf("\n"); 1467 } 1468 if((i % 16) != 15) printf("\n"); 1469 } 1470#endif 1471 if(fc->ongodev == NULL){ 1472 if(sfp->mode.rreqq.dest_lo == (0xf0000000 | CSRROMOFF)){ 1473 rfp->mode.rresq.data = ntohl(rfp->mode.rresq.data); 1474 chdr = (struct csrhdr *)(&rfp->mode.rresq.data); 1475/* If CSR is minimal confinguration, more investgation is not needed. */ 1476 if(chdr->info_len == 1){ 1477 if (firewire_debug) 1478 printf("node%d: minimal config\n", 1479 fc->ongonode); 1480 goto nextnode; 1481 }else{ 1482 fc->ongoaddr = CSRROMOFF + 0xc; 1483 } 1484 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0xc))){ 1485 fc->ongoeui.hi = ntohl(rfp->mode.rresq.data); 1486 fc->ongoaddr = CSRROMOFF + 0x10; 1487 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0x10))){ 1488 fc->ongoeui.lo = ntohl(rfp->mode.rresq.data); 1489 if (fc->ongoeui.hi == 0 && fc->ongoeui.lo == 0) { 1490 if (firewire_debug) 1491 printf("node%d: eui64 is zero.\n", 1492 fc->ongonode); 1493 goto nextnode; 1494 } 1495 fc->ongoaddr = CSRROMOFF; 1496 } 1497 }else{ 1498 if (fc->ongoaddr == CSRROMOFF && 1499 fc->ongodev->csrrom[0] == ntohl(rfp->mode.rresq.data)) { 1500 fc->ongodev->status = FWDEVATTACHED; 1501 goto nextnode; 1502 } 1503 fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4] = ntohl(rfp->mode.rresq.data); 1504 if(fc->ongoaddr > fc->ongodev->rommax){ 1505 fc->ongodev->rommax = fc->ongoaddr; 1506 } 1507 csrd = SLIST_FIRST(&fc->ongocsr); 1508 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1509 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1510 offset = CSRROMOFF; 1511 }else{ 1512 chdr = (struct csrhdr *)&fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]; 1513 offset = csrd->off; 1514 } 1515 if(fc->ongoaddr > (CSRROMOFF + 0x14) && fc->ongoaddr != offset){ 1516 csrreg = (struct csrreg *)&fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4]; 1517 if( csrreg->key == 0x81 || csrreg->key == 0xd1){ 1518 csrd = SLIST_FIRST(&fc->csrfree); 1519 if(csrd == NULL){ 1520 goto nextnode; 1521 }else{ 1522 csrd->ongoaddr = fc->ongoaddr; 1523 fc->ongoaddr += csrreg->val * 4; 1524 csrd->off = fc->ongoaddr; 1525 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1526 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1527 goto nextaddr; 1528 } 1529 } 1530 } 1531 fc->ongoaddr += 4; 1532 if(((fc->ongoaddr - offset)/4 > chdr->crc_len) && 1533 (fc->ongodev->rommax < 0x414)){ 1534 if(fc->ongodev->rommax <= 0x414){ 1535 csrd = SLIST_FIRST(&fc->csrfree); 1536 if(csrd == NULL) goto nextnode; 1537 csrd->off = fc->ongoaddr; 1538 csrd->ongoaddr = fc->ongoaddr; 1539 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1540 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1541 } 1542 goto nextaddr; 1543 } 1544 1545 while(((fc->ongoaddr - offset)/4 > chdr->crc_len)){ 1546 if(csrd == NULL){ 1547 goto nextnode; 1548 }; 1549 fc->ongoaddr = csrd->ongoaddr + 4; 1550 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1551 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1552 csrd = SLIST_FIRST(&fc->ongocsr); 1553 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1554 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1555 offset = CSRROMOFF; 1556 }else{ 1557 chdr = (struct csrhdr *)&(fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]); 1558 offset = csrd->off; 1559 } 1560 } 1561 if((fc->ongoaddr - CSRROMOFF) > CSRROMSIZE){ 1562 goto nextnode; 1563 } 1564 } 1565nextaddr: 1566 fw_xfer_free( xfer); 1567 fw_bus_explore(fc); 1568 return; 1569errnode: 1570 fc->retry_count++; 1571 if (fc->ongodev != NULL) 1572 fc->ongodev->status = FWDEVINVAL; 1573nextnode: 1574 fw_xfer_free( xfer); 1575 fc->ongonode++; 1576/* housekeeping work space */ 1577 fc->ongoaddr = CSRROMOFF; 1578 fc->ongodev = NULL; 1579 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1580 while((csrd = SLIST_FIRST(&fc->ongocsr)) != NULL){ 1581 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1582 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1583 } 1584 fw_bus_explore(fc); 1585 return; 1586} 1587 1588/* 1589 * To attach sub-devices layer onto IEEE1394 bus. 1590 */ 1591static void 1592fw_attach_dev(struct firewire_comm *fc) 1593{ 1594 struct fw_device *fwdev; 1595 struct fw_xfer *xfer; 1596 int i, err; 1597 device_t *devlistp; 1598 int devcnt; 1599 struct firewire_dev_comm *fdc; 1600 1601 STAILQ_FOREACH(fwdev, &fc->devices, link) 1602 if (fwdev->status == FWDEVINIT) 1603 fwdev->status = FWDEVATTACHED; 1604 1605 err = device_get_children(fc->bdev, &devlistp, &devcnt); 1606 if( err != 0 ) 1607 return; 1608 for( i = 0 ; i < devcnt ; i++){ 1609 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 1610 fdc = device_get_softc(devlistp[i]); 1611 if (fdc->post_explore != NULL) 1612 fdc->post_explore(fdc); 1613 } 1614 } 1615 free(devlistp, M_TEMP); 1616 1617 /* call pending handlers */ 1618 i = 0; 1619 while ((xfer = STAILQ_FIRST(&fc->pending))) { 1620 STAILQ_REMOVE_HEAD(&fc->pending, link); 1621 i++; 1622 if (xfer->act.hand) 1623 xfer->act.hand(xfer); 1624 } 1625 if (i > 0) 1626 printf("fw_attach_dev: %d pending handlers called\n", i); 1627 if (fc->retry_count > 0) { 1628 printf("probe failed for %d node\n", fc->retry_count); 1629#if 0 1630 callout_reset(&fc->retry_probe_callout, hz*2, 1631 (void *)fc->ibr, (void *)fc); 1632#endif 1633 } 1634 return; 1635} 1636 1637/* 1638 * To allocate uniq transaction label. 1639 */ 1640static int 1641fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer) 1642{ 1643 u_int i; 1644 struct tlabel *tl, *tmptl; 1645 int s; 1646 static u_int32_t label = 0; 1647 1648 s = splfw(); 1649 for( i = 0 ; i < 0x40 ; i ++){ 1650 label = (label + 1) & 0x3f; 1651 for(tmptl = STAILQ_FIRST(&fc->tlabels[label]); 1652 tmptl != NULL; tmptl = STAILQ_NEXT(tmptl, link)){ 1653 if(tmptl->xfer->dst == xfer->dst) break; 1654 } 1655 if(tmptl == NULL) { 1656 tl = malloc(sizeof(struct tlabel),M_FW,M_NOWAIT); 1657 if (tl == NULL) { 1658 splx(s); 1659 return (-1); 1660 } 1661 tl->xfer = xfer; 1662 STAILQ_INSERT_TAIL(&fc->tlabels[label], tl, link); 1663 splx(s); 1664 if (firewire_debug > 1) 1665 printf("fw_get_tlabel: dst=%d tl=%d\n", 1666 xfer->dst, label); 1667 return(label); 1668 } 1669 } 1670 splx(s); 1671 1672 printf("fw_get_tlabel: no free tlabel\n"); 1673 return(-1); 1674} 1675 1676static void 1677fw_rcv_copy(struct fw_xfer *xfer, struct iovec *vec, int nvec) 1678{ 1679 char *p; 1680 int res, i, len; 1681 1682 p = xfer->recv.buf; 1683 res = xfer->recv.len; 1684 for (i = 0; i < nvec; i++, vec++) { 1685 len = vec->iov_len; 1686 if (res < len) { 1687 printf("rcv buffer(%d) is %d bytes short.\n", 1688 xfer->recv.len, len - res); 1689 len = res; 1690 } 1691 bcopy(vec->iov_base, p, len); 1692 p += len; 1693 res -= len; 1694 if (res <= 0) 1695 break; 1696 } 1697 xfer->recv.len -= res; 1698} 1699 1700/* 1701 * Generic packet receving process. 1702 */ 1703void 1704fw_rcv(struct firewire_comm *fc, struct iovec *vec, int nvec, u_int sub, u_int spd) 1705{ 1706 struct fw_pkt *fp, *resfp; 1707 struct fw_xfer *xfer; 1708 struct fw_bind *bind; 1709 struct firewire_softc *sc; 1710 int tcode, s; 1711 int i, len, oldstate; 1712#if 0 1713 { 1714 u_int32_t *qld; 1715 int i; 1716 qld = (u_int32_t *)buf; 1717 printf("spd %d len:%d\n", spd, len); 1718 for( i = 0 ; i <= len && i < 32; i+= 4){ 1719 printf("0x%08x ", ntohl(qld[i/4])); 1720 if((i % 16) == 15) printf("\n"); 1721 } 1722 if((i % 16) != 15) printf("\n"); 1723 } 1724#endif 1725 fp = (struct fw_pkt *)vec[0].iov_base; 1726 tcode = fp->mode.common.tcode; 1727#if 0 /* XXX this check is not valid for RRESQ and WREQQ */ 1728 if (vec[0].iov_len < fc->tcode[tcode].hdr_len) { 1729#if __FreeBSD_version >= 500000 1730 printf("fw_rcv: iov_len(%zu) is less than" 1731#else 1732 printf("fw_rcv: iov_len(%u) is less than" 1733#endif 1734 " hdr_len(%d:tcode=%d)\n", vec[0].iov_len, 1735 fc->tcode[tcode].hdr_len, tcode); 1736 } 1737#endif 1738 switch (tcode) { 1739 case FWTCODE_WRES: 1740 case FWTCODE_RRESQ: 1741 case FWTCODE_RRESB: 1742 case FWTCODE_LRES: 1743 xfer = fw_tl2xfer(fc, fp->mode.hdr.src, 1744 fp->mode.hdr.tlrt >> 2); 1745 if(xfer == NULL) { 1746 printf("fw_rcv: unknown response " 1747 "tcode=%d src=0x%x tl=0x%x rt=%d data=0x%x\n", 1748 tcode, 1749 fp->mode.hdr.src, 1750 fp->mode.hdr.tlrt >> 2, 1751 fp->mode.hdr.tlrt & 3, 1752 fp->mode.rresq.data); 1753#if 1 1754 printf("try ad-hoc work around!!\n"); 1755 xfer = fw_tl2xfer(fc, fp->mode.hdr.src, 1756 (fp->mode.hdr.tlrt >> 2)^3); 1757 if (xfer == NULL) { 1758 printf("no use...\n"); 1759 goto err; 1760 } 1761#else 1762 goto err; 1763#endif 1764 } 1765 fw_rcv_copy(xfer, vec, nvec); 1766 xfer->resp = 0; 1767 /* make sure the packet is drained in AT queue */ 1768 oldstate = xfer->state; 1769 xfer->state = FWXF_RCVD; 1770 switch (oldstate) { 1771 case FWXF_SENT: 1772 fw_xfer_done(xfer); 1773 break; 1774 case FWXF_START: 1775 if (firewire_debug) 1776 printf("not sent yet tl=%x\n", xfer->tl); 1777 break; 1778 default: 1779 printf("unexpected state %d\n", xfer->state); 1780 } 1781 return; 1782 case FWTCODE_WREQQ: 1783 case FWTCODE_WREQB: 1784 case FWTCODE_RREQQ: 1785 case FWTCODE_RREQB: 1786 case FWTCODE_LREQ: 1787 bind = fw_bindlookup(fc, fp->mode.rreqq.dest_hi, 1788 fp->mode.rreqq.dest_lo); 1789 if(bind == NULL){ 1790#if __FreeBSD_version >= 500000 1791 printf("Unknown service addr 0x%08x:0x%08x tcode=%x src=0x%x data=%x\n", 1792#else 1793 printf("Unknown service addr 0x%08x:0x%08x tcode=%x src=0x%x data=%lx\n", 1794#endif 1795 fp->mode.wreqq.dest_hi, 1796 fp->mode.wreqq.dest_lo, 1797 tcode, 1798 fp->mode.hdr.src, 1799 ntohl(fp->mode.wreqq.data)); 1800 if (fc->status == FWBUSRESET) { 1801 printf("fw_rcv: cannot respond(bus reset)!\n"); 1802 goto err; 1803 } 1804 xfer = fw_xfer_alloc_buf(M_FWXFER, 16, 0); 1805 if(xfer == NULL){ 1806 return; 1807 } 1808 xfer->spd = spd; 1809 resfp = (struct fw_pkt *)xfer->send.buf; 1810 switch (tcode) { 1811 case FWTCODE_WREQQ: 1812 case FWTCODE_WREQB: 1813 resfp->mode.hdr.tcode = FWTCODE_WRES; 1814 xfer->send.len = 12; 1815 break; 1816 case FWTCODE_RREQQ: 1817 resfp->mode.hdr.tcode = FWTCODE_RRESQ; 1818 xfer->send.len = 16; 1819 break; 1820 case FWTCODE_RREQB: 1821 resfp->mode.hdr.tcode = FWTCODE_RRESB; 1822 xfer->send.len = 16; 1823 break; 1824 case FWTCODE_LREQ: 1825 resfp->mode.hdr.tcode = FWTCODE_LRES; 1826 xfer->send.len = 16; 1827 break; 1828 } 1829 resfp->mode.hdr.dst = fp->mode.hdr.src; 1830 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt; 1831 resfp->mode.hdr.pri = fp->mode.hdr.pri; 1832 resfp->mode.rresb.rtcode = 7; 1833 resfp->mode.rresb.extcode = 0; 1834 resfp->mode.rresb.len = 0; 1835/* 1836 xfer->act.hand = fw_asy_callback; 1837*/ 1838 xfer->act.hand = fw_xfer_free; 1839 if(fw_asyreq(fc, -1, xfer)){ 1840 fw_xfer_free( xfer); 1841 return; 1842 } 1843 goto err; 1844 } 1845 len = 0; 1846 for (i = 0; i < nvec; i ++) 1847 len += vec[i].iov_len; 1848 switch(bind->act_type){ 1849 case FWACT_XFER: 1850 /* splfw()?? */ 1851 xfer = STAILQ_FIRST(&bind->xferlist); 1852 if (xfer == NULL) { 1853 printf("Discard a packet for this bind.\n"); 1854 goto err; 1855 } 1856 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 1857 fw_rcv_copy(xfer, vec, nvec); 1858 xfer->spd = spd; 1859 if (fc->status != FWBUSRESET) 1860 xfer->act.hand(xfer); 1861 else 1862 STAILQ_INSERT_TAIL(&fc->pending, xfer, link); 1863 return; 1864 break; 1865 case FWACT_CH: 1866 if(fc->ir[bind->sub]->queued >= 1867 fc->ir[bind->sub]->maxq){ 1868 device_printf(fc->bdev, 1869 "Discard a packet %x %d\n", 1870 bind->sub, 1871 fc->ir[bind->sub]->queued); 1872 goto err; 1873 } 1874 xfer = STAILQ_FIRST(&bind->xferlist); 1875 if (xfer == NULL) { 1876 printf("Discard packet for this bind\n"); 1877 goto err; 1878 } 1879 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 1880 fw_rcv_copy(xfer, vec, nvec); 1881 xfer->spd = spd; 1882 s = splfw(); 1883 fc->ir[bind->sub]->queued++; 1884 STAILQ_INSERT_TAIL(&fc->ir[bind->sub]->q, xfer, link); 1885 splx(s); 1886 1887 wakeup((caddr_t)fc->ir[bind->sub]); 1888 1889 return; 1890 break; 1891 default: 1892 goto err; 1893 break; 1894 } 1895 break; 1896 case FWTCODE_STREAM: 1897 { 1898 struct fw_xferq *xferq; 1899 1900 xferq = fc->ir[sub]; 1901#if 0 1902 printf("stream rcv dma %d len %d off %d spd %d\n", 1903 sub, len, off, spd); 1904#endif 1905 if(xferq->queued >= xferq->maxq) { 1906 printf("receive queue is full\n"); 1907 goto err; 1908 } 1909 /* XXX get xfer from xfer queue, we don't need copy for 1910 per packet mode */ 1911 xfer = fw_xfer_alloc_buf(M_FWXFER, 0, /* XXX */ 1912 vec[0].iov_len); 1913 if(xfer == NULL) goto err; 1914 fw_rcv_copy(xfer, vec, nvec); 1915 xfer->spd = spd; 1916 s = splfw(); 1917 xferq->queued++; 1918 STAILQ_INSERT_TAIL(&xferq->q, xfer, link); 1919 splx(s); 1920 sc = device_get_softc(fc->bdev); 1921#if __FreeBSD_version >= 500000 1922 if (SEL_WAITING(&xferq->rsel)) 1923#else 1924 if (&xferq->rsel.si_pid != 0) 1925#endif 1926 selwakeup(&xferq->rsel); 1927 if (xferq->flag & FWXFERQ_WAKEUP) { 1928 xferq->flag &= ~FWXFERQ_WAKEUP; 1929 wakeup((caddr_t)xferq); 1930 } 1931 if (xferq->flag & FWXFERQ_HANDLER) { 1932 xferq->hand(xferq); 1933 } 1934 return; 1935 break; 1936 } 1937 default: 1938 printf("fw_rcv: unknow tcode %d\n", tcode); 1939 break; 1940 } 1941err: 1942 return; 1943} 1944 1945/* 1946 * Post process for Bus Manager election process. 1947 */ 1948static void 1949fw_try_bmr_callback(struct fw_xfer *xfer) 1950{ 1951 struct fw_pkt *rfp; 1952 struct firewire_comm *fc; 1953 int bmr; 1954 1955 if (xfer == NULL) 1956 return; 1957 fc = xfer->fc; 1958 if (xfer->resp != 0) 1959 goto error; 1960 if (xfer->send.buf == NULL) 1961 goto error; 1962 if (xfer->recv.buf == NULL) 1963 goto error; 1964 rfp = (struct fw_pkt *)xfer->recv.buf; 1965 if (rfp->mode.lres.rtcode != FWRCODE_COMPLETE) 1966 goto error; 1967 1968 bmr = ntohl(rfp->mode.lres.payload[0]); 1969 if (bmr == 0x3f) 1970 bmr = fc->nodeid; 1971 1972 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f); 1973 fw_xfer_free(xfer); 1974 fw_bmr(fc); 1975 return; 1976 1977error: 1978 device_printf(fc->bdev, "bus manager election failed\n"); 1979 fw_xfer_free(xfer); 1980} 1981 1982 1983/* 1984 * To candidate Bus Manager election process. 1985 */ 1986static void 1987fw_try_bmr(void *arg) 1988{ 1989 struct fw_xfer *xfer; 1990 struct firewire_comm *fc = (struct firewire_comm *)arg; 1991 struct fw_pkt *fp; 1992 int err = 0; 1993 1994 xfer = fw_xfer_alloc_buf(M_FWXFER, 24, 20); 1995 if(xfer == NULL){ 1996 return; 1997 } 1998 xfer->spd = 0; 1999 fc->status = FWBUSMGRELECT; 2000 2001 fp = (struct fw_pkt *)xfer->send.buf; 2002 fp->mode.lreq.dest_hi = 0xffff; 2003 fp->mode.lreq.tlrt = 0; 2004 fp->mode.lreq.tcode = FWTCODE_LREQ; 2005 fp->mode.lreq.pri = 0; 2006 fp->mode.lreq.src = 0; 2007 fp->mode.lreq.len = 8; 2008 fp->mode.lreq.extcode = FW_LREQ_CMPSWAP; 2009 xfer->dst = FWLOCALBUS | fc->irm; 2010 fp->mode.lreq.dst = xfer->dst; 2011 fp->mode.lreq.dest_lo = 0xf0000000 | BUS_MGR_ID; 2012 fp->mode.lreq.payload[0] = htonl(0x3f); 2013 fp->mode.lreq.payload[1] = htonl(fc->nodeid); 2014 xfer->act.hand = fw_try_bmr_callback; 2015 2016 err = fw_asyreq(fc, -1, xfer); 2017 if(err){ 2018 fw_xfer_free( xfer); 2019 return; 2020 } 2021 return; 2022} 2023 2024#ifdef FW_VMACCESS 2025/* 2026 * Software implementation for physical memory block access. 2027 * XXX:Too slow, usef for debug purpose only. 2028 */ 2029static void 2030fw_vmaccess(struct fw_xfer *xfer){ 2031 struct fw_pkt *rfp, *sfp = NULL; 2032 u_int32_t *ld = (u_int32_t *)xfer->recv.buf; 2033 2034 printf("vmaccess spd:%2x len:%03x data:%08x %08x %08x %08x\n", 2035 xfer->spd, xfer->recv.len, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 2036 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 2037 if(xfer->resp != 0){ 2038 fw_xfer_free( xfer); 2039 return; 2040 } 2041 if(xfer->recv.buf == NULL){ 2042 fw_xfer_free( xfer); 2043 return; 2044 } 2045 rfp = (struct fw_pkt *)xfer->recv.buf; 2046 switch(rfp->mode.hdr.tcode){ 2047 /* XXX need fix for 64bit arch */ 2048 case FWTCODE_WREQB: 2049 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2050 xfer->send.len = 12; 2051 sfp = (struct fw_pkt *)xfer->send.buf; 2052 bcopy(rfp->mode.wreqb.payload, 2053 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len)); 2054 sfp->mode.wres.tcode = FWTCODE_WRES; 2055 sfp->mode.wres.rtcode = 0; 2056 break; 2057 case FWTCODE_WREQQ: 2058 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2059 xfer->send.len = 12; 2060 sfp->mode.wres.tcode = FWTCODE_WRES; 2061 *((u_int32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data; 2062 sfp->mode.wres.rtcode = 0; 2063 break; 2064 case FWTCODE_RREQB: 2065 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_FW, M_NOWAIT); 2066 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len); 2067 sfp = (struct fw_pkt *)xfer->send.buf; 2068 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo), 2069 sfp->mode.rresb.payload, (u_int16_t)ntohs(rfp->mode.rreqb.len)); 2070 sfp->mode.rresb.tcode = FWTCODE_RRESB; 2071 sfp->mode.rresb.len = rfp->mode.rreqb.len; 2072 sfp->mode.rresb.rtcode = 0; 2073 sfp->mode.rresb.extcode = 0; 2074 break; 2075 case FWTCODE_RREQQ: 2076 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 2077 xfer->send.len = 16; 2078 sfp = (struct fw_pkt *)xfer->send.buf; 2079 sfp->mode.rresq.data = *(u_int32_t *)(ntohl(rfp->mode.rreqq.dest_lo)); 2080 sfp->mode.wres.tcode = FWTCODE_RRESQ; 2081 sfp->mode.rresb.rtcode = 0; 2082 break; 2083 default: 2084 fw_xfer_free( xfer); 2085 return; 2086 } 2087 sfp->mode.hdr.dst = rfp->mode.hdr.src; 2088 xfer->dst = ntohs(rfp->mode.hdr.src); 2089 xfer->act.hand = fw_xfer_free; 2090 xfer->retry_req = fw_asybusy; 2091 2092 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt; 2093 sfp->mode.hdr.pri = 0; 2094 2095 fw_asyreq(xfer->fc, -1, xfer); 2096/**/ 2097 return; 2098} 2099#endif 2100 2101/* 2102 * CRC16 check-sum for IEEE1394 register blocks. 2103 */ 2104u_int16_t 2105fw_crc16(u_int32_t *ptr, u_int32_t len){ 2106 u_int32_t i, sum, crc = 0; 2107 int shift; 2108 len = (len + 3) & ~3; 2109 for(i = 0 ; i < len ; i+= 4){ 2110 for( shift = 28 ; shift >= 0 ; shift -= 4){ 2111 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf; 2112 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum; 2113 } 2114 crc &= 0xffff; 2115 } 2116 return((u_int16_t) crc); 2117} 2118 2119static int 2120fw_bmr(struct firewire_comm *fc) 2121{ 2122 struct fw_device fwdev; 2123 union fw_self_id *self_id; 2124 int cmstr; 2125 2126 /* Check to see if the current root node is cycle master capable */ 2127 self_id = &fc->topology_map->self_id[fc->max_node]; 2128 if (fc->max_node > 0) { 2129 /* XXX check cmc bit of businfo block rather than contender */ 2130 if (self_id->p0.link_active && self_id->p0.contender) 2131 cmstr = fc->max_node; 2132 else { 2133 device_printf(fc->bdev, 2134 "root node is not cycle master capable\n"); 2135 /* XXX shall we be the cycle master? */ 2136 cmstr = fc->nodeid; 2137 /* XXX need bus reset */ 2138 } 2139 } else 2140 cmstr = -1; 2141 2142 device_printf(fc->bdev, "bus manager %d ", CSRARC(fc, BUS_MGR_ID)); 2143 if(CSRARC(fc, BUS_MGR_ID) != fc->nodeid) { 2144 /* We are not the bus manager */ 2145 printf("\n"); 2146 return(0); 2147 } 2148 printf("(me)\n"); 2149 2150 /* Optimize gapcount */ 2151 if(fc->max_hop <= MAX_GAPHOP ) 2152 fw_phy_config(fc, cmstr, gap_cnt[fc->max_hop]); 2153 /* If we are the cycle master, nothing to do */ 2154 if (cmstr == fc->nodeid || cmstr == -1) 2155 return 0; 2156 /* Bus probe has not finished, make dummy fwdev for cmstr */ 2157 bzero(&fwdev, sizeof(fwdev)); 2158 fwdev.fc = fc; 2159 fwdev.dst = cmstr; 2160 fwdev.speed = 0; 2161 fwdev.maxrec = 8; /* 512 */ 2162 fwdev.status = FWDEVINIT; 2163 /* Set cmstr bit on the cycle master */ 2164 fwmem_write_quad(&fwdev, NULL, 0/*spd*/, 2165 0xffff, 0xf0000000 | STATE_SET, htonl(1 << 8), 2166 fw_asy_callback_free); 2167 2168 return 0; 2169} 2170 2171static int 2172fw_modevent(module_t mode, int type, void *data) 2173{ 2174 int err = 0; 2175#if __FreeBSD_version >= 500000 2176 static eventhandler_tag fwdev_ehtag = NULL; 2177#endif 2178 2179 switch (type) { 2180 case MOD_LOAD: 2181#if __FreeBSD_version >= 500000 2182 fwdev_ehtag = EVENTHANDLER_REGISTER(dev_clone, 2183 fwdev_clone, 0, 1000); 2184#endif 2185 break; 2186 case MOD_UNLOAD: 2187#if __FreeBSD_version >= 500000 2188 if (fwdev_ehtag != NULL) 2189 EVENTHANDLER_DEREGISTER(dev_clone, fwdev_ehtag); 2190#endif 2191 break; 2192 case MOD_SHUTDOWN: 2193 break; 2194 } 2195 return (err); 2196} 2197 2198 2199DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,fw_modevent,0); 2200MODULE_VERSION(firewire, 1); 2201