firewire.c revision 120850
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 120850 2003-10-06 07:17:43Z 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, hold_count=3; 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"); 73SYSCTL_INT(_hw_firewire, OID_AUTO, hold_count, CTLFLAG_RW, &hold_count, 0, 74 "Number of count of bus resets for removing lost device information"); 75 76MALLOC_DEFINE(M_FW, "firewire", "FireWire"); 77MALLOC_DEFINE(M_FWXFER, "fw_xfer", "XFER/FireWire"); 78 79#define FW_MAXASYRTY 4 80 81devclass_t firewire_devclass; 82 83static int firewire_match __P((device_t)); 84static int firewire_attach __P((device_t)); 85static int firewire_detach __P((device_t)); 86static int firewire_resume __P((device_t)); 87#if 0 88static int firewire_shutdown __P((device_t)); 89#endif 90static device_t firewire_add_child __P((device_t, int, const char *, int)); 91static void fw_try_bmr __P((void *)); 92static void fw_try_bmr_callback __P((struct fw_xfer *)); 93static void fw_asystart __P((struct fw_xfer *)); 94static int fw_get_tlabel __P((struct firewire_comm *, struct fw_xfer *)); 95static void fw_bus_probe __P((struct firewire_comm *)); 96static void fw_bus_explore __P((struct firewire_comm *)); 97static void fw_bus_explore_callback __P((struct fw_xfer *)); 98static void fw_attach_dev __P((struct firewire_comm *)); 99#ifdef FW_VMACCESS 100static void fw_vmaccess __P((struct fw_xfer *)); 101#endif 102struct fw_xfer *asyreqq __P((struct firewire_comm *, u_int8_t, u_int8_t, u_int8_t, 103 u_int32_t, u_int32_t, void (*)__P((struct fw_xfer *)))); 104static int fw_bmr __P((struct firewire_comm *)); 105 106static device_method_t firewire_methods[] = { 107 /* Device interface */ 108 DEVMETHOD(device_probe, firewire_match), 109 DEVMETHOD(device_attach, firewire_attach), 110 DEVMETHOD(device_detach, firewire_detach), 111 DEVMETHOD(device_suspend, bus_generic_suspend), 112 DEVMETHOD(device_resume, firewire_resume), 113 DEVMETHOD(device_shutdown, bus_generic_shutdown), 114 115 /* Bus interface */ 116 DEVMETHOD(bus_add_child, firewire_add_child), 117 DEVMETHOD(bus_print_child, bus_generic_print_child), 118 119 { 0, 0 } 120}; 121char linkspeed[7][0x10]={"S100","S200","S400","S800","S1600","S3200","Unknown"}; 122 123/* IEEE-1394a Table C-2 Gap count as a function of hops*/ 124#define MAX_GAPHOP 15 125u_int gap_cnt[] = { 5, 5, 7, 8, 10, 13, 16, 18, 126 21, 24, 26, 29, 32, 35, 37, 40}; 127 128static driver_t firewire_driver = { 129 "firewire", 130 firewire_methods, 131 sizeof(struct firewire_softc), 132}; 133 134/* 135 * Lookup fwdev by node id. 136 */ 137struct fw_device * 138fw_noderesolve_nodeid(struct firewire_comm *fc, int dst) 139{ 140 struct fw_device *fwdev; 141 int s; 142 143 s = splfw(); 144 STAILQ_FOREACH(fwdev, &fc->devices, link) 145 if (fwdev->dst == dst && fwdev->status != FWDEVINVAL) 146 break; 147 splx(s); 148 149 return fwdev; 150} 151 152/* 153 * Lookup fwdev by EUI64. 154 */ 155struct fw_device * 156fw_noderesolve_eui64(struct firewire_comm *fc, struct fw_eui64 *eui) 157{ 158 struct fw_device *fwdev; 159 int s; 160 161 s = splfw(); 162 STAILQ_FOREACH(fwdev, &fc->devices, link) 163 if (FW_EUI64_EQUAL(fwdev->eui, *eui)) 164 break; 165 splx(s); 166 167 if(fwdev == NULL) return NULL; 168 if(fwdev->status == FWDEVINVAL) return NULL; 169 return fwdev; 170} 171 172/* 173 * Async. request procedure for userland application. 174 */ 175int 176fw_asyreq(struct firewire_comm *fc, int sub, struct fw_xfer *xfer) 177{ 178 int err = 0; 179 struct fw_xferq *xferq; 180 int tl = 0, len; 181 struct fw_pkt *fp; 182 int tcode; 183 struct tcode_info *info; 184 185 if(xfer == NULL) return EINVAL; 186 if(xfer->act.hand == NULL){ 187 printf("act.hand == NULL\n"); 188 return EINVAL; 189 } 190 fp = &xfer->send.hdr; 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 (xfer->send.pay_len > MAXREC(fc->maxrec)) { 204 printf("send.pay_len > maxrec\n"); 205 return EINVAL; 206 } 207 if (info->flag & FWTI_BLOCK_STR) 208 len = fp->mode.stream.len; 209 else if (info->flag & FWTI_BLOCK_ASY) 210 len = fp->mode.rresb.len; 211 else 212 len = 0; 213 if (len != xfer->send.pay_len){ 214 printf("len(%d) != send.pay_len(%d) (tcode=%d)\n", 215 len, xfer->send.pay_len, tcode); 216 return EINVAL; 217 } 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 microtime(&xfer->tv); 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 = 0; 318 split_timeout.tv_usec = 200 * 1000; /* 200 msec */ 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->send.hdr.mode.hdr.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 / 10, 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#define BIND_CMP(addr, fwb) (((addr) < (fwb)->start)?-1:\ 780 ((fwb)->end < (addr))?1:0) 781 782/* 783 * To lookup binded process from IEEE1394 address. 784 */ 785struct fw_bind * 786fw_bindlookup(struct firewire_comm *fc, u_int16_t dest_hi, u_int32_t dest_lo) 787{ 788 u_int64_t addr; 789 struct fw_bind *tfw; 790 791 addr = ((u_int64_t)dest_hi << 32) | dest_lo; 792 STAILQ_FOREACH(tfw, &fc->binds, fclist) 793 if (tfw->act_type != FWACT_NULL && BIND_CMP(addr, tfw) == 0) 794 return(tfw); 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, *prev = NULL; 805 806 if (fwb->start > fwb->end) { 807 printf("%s: invalid range\n", __FUNCTION__); 808 return EINVAL; 809 } 810 811 STAILQ_FOREACH(tfw, &fc->binds, fclist) { 812 if (fwb->end < tfw->start) 813 break; 814 prev = tfw; 815 } 816 if (prev == NULL) { 817 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 818 goto out; 819 } 820 if (prev->end < fwb->start) { 821 STAILQ_INSERT_AFTER(&fc->binds, prev, fwb, fclist); 822 goto out; 823 } 824 825 printf("%s: bind failed\n", __FUNCTION__); 826 return (EBUSY); 827 828out: 829 if (fwb->act_type == FWACT_CH) 830 STAILQ_INSERT_HEAD(&fc->ir[fwb->sub]->binds, fwb, chlist); 831 return (0); 832} 833 834/* 835 * To free IEEE1394 address block. 836 */ 837int 838fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb) 839{ 840#if 0 841 struct fw_xfer *xfer, *next; 842#endif 843 struct fw_bind *tfw; 844 int s; 845 846 s = splfw(); 847 STAILQ_FOREACH(tfw, &fc->binds, fclist) 848 if (tfw == fwb) { 849 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist); 850 goto found; 851 } 852 853 printf("%s: no such bind\n", __FUNCTION__); 854 splx(s); 855 return (1); 856found: 857#if 0 858 /* shall we do this? */ 859 for (xfer = STAILQ_FIRST(&fwb->xferlist); xfer != NULL; xfer = next) { 860 next = STAILQ_NEXT(xfer, link); 861 fw_xfer_free(xfer); 862 } 863 STAILQ_INIT(&fwb->xferlist); 864#endif 865 866 splx(s); 867 return 0; 868} 869 870/* 871 * To free transaction label. 872 */ 873static void 874fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer) 875{ 876 struct tlabel *tl; 877 int s = splfw(); 878 879 for( tl = STAILQ_FIRST(&fc->tlabels[xfer->tl]); tl != NULL; 880 tl = STAILQ_NEXT(tl, link)){ 881 if(tl->xfer == xfer){ 882 STAILQ_REMOVE(&fc->tlabels[xfer->tl], tl, tlabel, link); 883 free(tl, M_FW); 884 splx(s); 885 return; 886 } 887 } 888 splx(s); 889 return; 890} 891 892/* 893 * To obtain XFER structure by transaction label. 894 */ 895static struct fw_xfer * 896fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel) 897{ 898 struct fw_xfer *xfer; 899 struct tlabel *tl; 900 int s = splfw(); 901 902 for( tl = STAILQ_FIRST(&fc->tlabels[tlabel]); tl != NULL; 903 tl = STAILQ_NEXT(tl, link)){ 904 if(tl->xfer->send.hdr.mode.hdr.dst == node){ 905 xfer = tl->xfer; 906 splx(s); 907 if (firewire_debug > 2) 908 printf("fw_tl2xfer: found tl=%d\n", tlabel); 909 return(xfer); 910 } 911 } 912 if (firewire_debug > 1) 913 printf("fw_tl2xfer: not found tl=%d\n", tlabel); 914 splx(s); 915 return(NULL); 916} 917 918/* 919 * To allocate IEEE1394 XFER structure. 920 */ 921struct fw_xfer * 922fw_xfer_alloc(struct malloc_type *type) 923{ 924 struct fw_xfer *xfer; 925 926 xfer = malloc(sizeof(struct fw_xfer), type, M_NOWAIT | M_ZERO); 927 if (xfer == NULL) 928 return xfer; 929 930 xfer->malloc = type; 931 932 return xfer; 933} 934 935struct fw_xfer * 936fw_xfer_alloc_buf(struct malloc_type *type, int send_len, int recv_len) 937{ 938 struct fw_xfer *xfer; 939 940 xfer = fw_xfer_alloc(type); 941 xfer->send.pay_len = send_len; 942 xfer->recv.pay_len = recv_len; 943 if (xfer == NULL) 944 return(NULL); 945 if (send_len > 0) { 946 xfer->send.payload = malloc(send_len, type, M_NOWAIT | M_ZERO); 947 if (xfer->send.payload == NULL) { 948 fw_xfer_free(xfer); 949 return(NULL); 950 } 951 } 952 if (recv_len > 0) { 953 xfer->recv.payload = malloc(recv_len, type, M_NOWAIT); 954 if (xfer->recv.payload == NULL) { 955 if (xfer->send.payload != NULL) 956 free(xfer->send.payload, type); 957 fw_xfer_free(xfer); 958 return(NULL); 959 } 960 } 961 return(xfer); 962} 963 964/* 965 * IEEE1394 XFER post process. 966 */ 967void 968fw_xfer_done(struct fw_xfer *xfer) 969{ 970 if (xfer->act.hand == NULL) { 971 printf("act.hand == NULL\n"); 972 return; 973 } 974 975 if (xfer->fc->status != FWBUSRESET) 976 xfer->act.hand(xfer); 977 else { 978 printf("fw_xfer_done: pending\n"); 979 if (xfer->fc != NULL) 980 STAILQ_INSERT_TAIL(&xfer->fc->pending, xfer, link); 981 else 982 panic("fw_xfer_done: why xfer->fc is NULL?"); 983 } 984} 985 986void 987fw_xfer_unload(struct fw_xfer* xfer) 988{ 989 int s; 990 991 if(xfer == NULL ) return; 992 if(xfer->state == FWXF_INQ){ 993 printf("fw_xfer_free FWXF_INQ\n"); 994 s = splfw(); 995 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link); 996 xfer->q->queued --; 997 splx(s); 998 } 999 if (xfer->fc != NULL) { 1000#if 1 1001 if(xfer->state == FWXF_START) 1002 /* 1003 * This could happen if: 1004 * 1. We call fwohci_arcv() before fwohci_txd(). 1005 * 2. firewire_watch() is called. 1006 */ 1007 printf("fw_xfer_free FWXF_START\n"); 1008#endif 1009 fw_tl_free(xfer->fc, xfer); 1010 } 1011 xfer->state = FWXF_INIT; 1012 xfer->resp = 0; 1013 xfer->retry = 0; 1014} 1015/* 1016 * To free IEEE1394 XFER structure. 1017 */ 1018void 1019fw_xfer_free_buf( struct fw_xfer* xfer) 1020{ 1021 if (xfer == NULL) { 1022 printf("%s: xfer == NULL\n", __FUNCTION__); 1023 return; 1024 } 1025 fw_xfer_unload(xfer); 1026 if(xfer->send.payload != NULL){ 1027 free(xfer->send.payload, xfer->malloc); 1028 } 1029 if(xfer->recv.payload != NULL){ 1030 free(xfer->recv.payload, xfer->malloc); 1031 } 1032 free(xfer, xfer->malloc); 1033} 1034 1035void 1036fw_xfer_free( struct fw_xfer* xfer) 1037{ 1038 if (xfer == NULL) { 1039 printf("%s: xfer == NULL\n", __FUNCTION__); 1040 return; 1041 } 1042 fw_xfer_unload(xfer); 1043 free(xfer, xfer->malloc); 1044} 1045 1046void 1047fw_asy_callback_free(struct fw_xfer *xfer) 1048{ 1049#if 0 1050 printf("asyreq done state=%d resp=%d\n", 1051 xfer->state, xfer->resp); 1052#endif 1053 fw_xfer_free(xfer); 1054} 1055 1056/* 1057 * To configure PHY. 1058 */ 1059static void 1060fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count) 1061{ 1062 struct fw_xfer *xfer; 1063 struct fw_pkt *fp; 1064 1065 fc->status = FWBUSPHYCONF; 1066 1067 xfer = fw_xfer_alloc(M_FWXFER); 1068 if (xfer == NULL) 1069 return; 1070 xfer->fc = fc; 1071 xfer->retry_req = fw_asybusy; 1072 xfer->act.hand = fw_asy_callback_free; 1073 1074 fp = &xfer->send.hdr; 1075 fp->mode.ld[1] = 0; 1076 if (root_node >= 0) 1077 fp->mode.ld[1] |= (root_node & 0x3f) << 24 | 1 << 23; 1078 if (gap_count >= 0) 1079 fp->mode.ld[1] |= 1 << 22 | (gap_count & 0x3f) << 16; 1080 fp->mode.ld[2] = ~fp->mode.ld[1]; 1081/* XXX Dangerous, how to pass PHY packet to device driver */ 1082 fp->mode.common.tcode |= FWTCODE_PHY; 1083 1084 if (firewire_debug) 1085 printf("send phy_config root_node=%d gap_count=%d\n", 1086 root_node, gap_count); 1087 fw_asyreq(fc, -1, xfer); 1088} 1089 1090#if 0 1091/* 1092 * Dump self ID. 1093 */ 1094static void 1095fw_print_sid(u_int32_t sid) 1096{ 1097 union fw_self_id *s; 1098 s = (union fw_self_id *) &sid; 1099 printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d" 1100 " p0:%d p1:%d p2:%d i:%d m:%d\n", 1101 s->p0.phy_id, s->p0.link_active, s->p0.gap_count, 1102 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender, 1103 s->p0.power_class, s->p0.port0, s->p0.port1, 1104 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets); 1105} 1106#endif 1107 1108/* 1109 * To receive self ID. 1110 */ 1111void fw_sidrcv(struct firewire_comm* fc, u_int32_t *sid, u_int len) 1112{ 1113 u_int32_t *p; 1114 union fw_self_id *self_id; 1115 u_int i, j, node, c_port = 0, i_branch = 0; 1116 1117 fc->sid_cnt = len /(sizeof(u_int32_t) * 2); 1118 fc->status = FWBUSINIT; 1119 fc->max_node = fc->nodeid & 0x3f; 1120 CSRARC(fc, NODE_IDS) = ((u_int32_t)fc->nodeid) << 16; 1121 fc->status = FWBUSCYMELECT; 1122 fc->topology_map->crc_len = 2; 1123 fc->topology_map->generation ++; 1124 fc->topology_map->self_id_count = 0; 1125 fc->topology_map->node_count = 0; 1126 fc->speed_map->generation ++; 1127 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4; 1128 self_id = &fc->topology_map->self_id[0]; 1129 for(i = 0; i < fc->sid_cnt; i ++){ 1130 if (sid[1] != ~sid[0]) { 1131 printf("fw_sidrcv: invalid self-id packet\n"); 1132 sid += 2; 1133 continue; 1134 } 1135 *self_id = *((union fw_self_id *)sid); 1136 fc->topology_map->crc_len++; 1137 if(self_id->p0.sequel == 0){ 1138 fc->topology_map->node_count ++; 1139 c_port = 0; 1140#if 0 1141 fw_print_sid(sid[0]); 1142#endif 1143 node = self_id->p0.phy_id; 1144 if(fc->max_node < node){ 1145 fc->max_node = self_id->p0.phy_id; 1146 } 1147 /* XXX I'm not sure this is the right speed_map */ 1148 fc->speed_map->speed[node][node] 1149 = self_id->p0.phy_speed; 1150 for (j = 0; j < node; j ++) { 1151 fc->speed_map->speed[j][node] 1152 = fc->speed_map->speed[node][j] 1153 = min(fc->speed_map->speed[j][j], 1154 self_id->p0.phy_speed); 1155 } 1156 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) && 1157 (self_id->p0.link_active && self_id->p0.contender)) { 1158 fc->irm = self_id->p0.phy_id; 1159 } 1160 if(self_id->p0.port0 >= 0x2){ 1161 c_port++; 1162 } 1163 if(self_id->p0.port1 >= 0x2){ 1164 c_port++; 1165 } 1166 if(self_id->p0.port2 >= 0x2){ 1167 c_port++; 1168 } 1169 } 1170 if(c_port > 2){ 1171 i_branch += (c_port - 2); 1172 } 1173 sid += 2; 1174 self_id++; 1175 fc->topology_map->self_id_count ++; 1176 } 1177 device_printf(fc->bdev, "%d nodes", fc->max_node + 1); 1178 /* CRC */ 1179 fc->topology_map->crc = fw_crc16( 1180 (u_int32_t *)&fc->topology_map->generation, 1181 fc->topology_map->crc_len * 4); 1182 fc->speed_map->crc = fw_crc16( 1183 (u_int32_t *)&fc->speed_map->generation, 1184 fc->speed_map->crc_len * 4); 1185 /* byteswap and copy to CSR */ 1186 p = (u_int32_t *)fc->topology_map; 1187 for (i = 0; i <= fc->topology_map->crc_len; i++) 1188 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++); 1189 p = (u_int32_t *)fc->speed_map; 1190 CSRARC(fc, SPED_MAP) = htonl(*p++); 1191 CSRARC(fc, SPED_MAP + 4) = htonl(*p++); 1192 /* don't byte-swap u_int8_t array */ 1193 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4); 1194 1195 fc->max_hop = fc->max_node - i_branch; 1196 printf(", maxhop <= %d", fc->max_hop); 1197 1198 if(fc->irm == -1 ){ 1199 printf(", Not found IRM capable node"); 1200 }else{ 1201 printf(", cable IRM = %d", fc->irm); 1202 if (fc->irm == fc->nodeid) 1203 printf(" (me)"); 1204 } 1205 printf("\n"); 1206 1207 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) { 1208 if (fc->irm == fc->nodeid) { 1209 fc->status = FWBUSMGRDONE; 1210 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm); 1211 fw_bmr(fc); 1212 } else { 1213 fc->status = FWBUSMGRELECT; 1214 callout_reset(&fc->bmr_callout, hz/8, 1215 (void *)fw_try_bmr, (void *)fc); 1216 } 1217 } else 1218 fc->status = FWBUSMGRDONE; 1219 1220 callout_reset(&fc->busprobe_callout, hz/4, 1221 (void *)fw_bus_probe, (void *)fc); 1222} 1223 1224/* 1225 * To probe devices on the IEEE1394 bus. 1226 */ 1227static void 1228fw_bus_probe(struct firewire_comm *fc) 1229{ 1230 int s; 1231 struct fw_device *fwdev; 1232 1233 s = splfw(); 1234 fc->status = FWBUSEXPLORE; 1235 fc->retry_count = 0; 1236 1237 /* Invalidate all devices, just after bus reset. */ 1238 STAILQ_FOREACH(fwdev, &fc->devices, link) 1239 if (fwdev->status != FWDEVINVAL) { 1240 fwdev->status = FWDEVINVAL; 1241 fwdev->rcnt = 0; 1242 } 1243 1244 fc->ongonode = 0; 1245 fc->ongoaddr = CSRROMOFF; 1246 fc->ongodev = NULL; 1247 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1248 fw_bus_explore(fc); 1249 splx(s); 1250} 1251 1252/* 1253 * To collect device informations on the IEEE1394 bus. 1254 */ 1255static void 1256fw_bus_explore(struct firewire_comm *fc ) 1257{ 1258 int err = 0; 1259 struct fw_device *fwdev, *pfwdev, *tfwdev; 1260 u_int32_t addr; 1261 struct fw_xfer *xfer; 1262 struct fw_pkt *fp; 1263 1264 if(fc->status != FWBUSEXPLORE) 1265 return; 1266 1267loop: 1268 if(fc->ongonode == fc->nodeid) fc->ongonode++; 1269 1270 if(fc->ongonode > fc->max_node) goto done; 1271 if(fc->ongonode >= 0x3f) goto done; 1272 1273 /* check link */ 1274 /* XXX we need to check phy_id first */ 1275 if (!fc->topology_map->self_id[fc->ongonode].p0.link_active) { 1276 if (firewire_debug) 1277 printf("node%d: link down\n", fc->ongonode); 1278 fc->ongonode++; 1279 goto loop; 1280 } 1281 1282 if(fc->ongoaddr <= CSRROMOFF && 1283 fc->ongoeui.hi == 0xffffffff && 1284 fc->ongoeui.lo == 0xffffffff ){ 1285 fc->ongoaddr = CSRROMOFF; 1286 addr = 0xf0000000 | fc->ongoaddr; 1287 }else if(fc->ongoeui.hi == 0xffffffff ){ 1288 fc->ongoaddr = CSRROMOFF + 0xc; 1289 addr = 0xf0000000 | fc->ongoaddr; 1290 }else if(fc->ongoeui.lo == 0xffffffff ){ 1291 fc->ongoaddr = CSRROMOFF + 0x10; 1292 addr = 0xf0000000 | fc->ongoaddr; 1293 }else if(fc->ongodev == NULL){ 1294 STAILQ_FOREACH(fwdev, &fc->devices, link) 1295 if (FW_EUI64_EQUAL(fwdev->eui, fc->ongoeui)) 1296 break; 1297 if(fwdev != NULL){ 1298 fwdev->dst = fc->ongonode; 1299 fwdev->status = FWDEVINIT; 1300 fc->ongodev = fwdev; 1301 fc->ongoaddr = CSRROMOFF; 1302 addr = 0xf0000000 | fc->ongoaddr; 1303 goto dorequest; 1304 } 1305 fwdev = malloc(sizeof(struct fw_device), M_FW, 1306 M_NOWAIT | M_ZERO); 1307 if(fwdev == NULL) 1308 return; 1309 fwdev->fc = fc; 1310 fwdev->rommax = 0; 1311 fwdev->dst = fc->ongonode; 1312 fwdev->eui.hi = fc->ongoeui.hi; fwdev->eui.lo = fc->ongoeui.lo; 1313 fwdev->status = FWDEVINIT; 1314 fwdev->speed = fc->speed_map->speed[fc->nodeid][fc->ongonode]; 1315 1316 pfwdev = NULL; 1317 STAILQ_FOREACH(tfwdev, &fc->devices, link) { 1318 if (tfwdev->eui.hi > fwdev->eui.hi || 1319 (tfwdev->eui.hi == fwdev->eui.hi && 1320 tfwdev->eui.lo > fwdev->eui.lo)) 1321 break; 1322 pfwdev = tfwdev; 1323 } 1324 if (pfwdev == NULL) 1325 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link); 1326 else 1327 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link); 1328 1329 device_printf(fc->bdev, "New %s device ID:%08x%08x\n", 1330 linkspeed[fwdev->speed], 1331 fc->ongoeui.hi, fc->ongoeui.lo); 1332 1333 fc->ongodev = fwdev; 1334 fc->ongoaddr = CSRROMOFF; 1335 addr = 0xf0000000 | fc->ongoaddr; 1336 }else{ 1337 addr = 0xf0000000 | fc->ongoaddr; 1338 } 1339dorequest: 1340#if 0 1341 xfer = asyreqq(fc, FWSPD_S100, 0, 0, 1342 ((FWLOCALBUS | fc->ongonode) << 16) | 0xffff , addr, 1343 fw_bus_explore_callback); 1344 if(xfer == NULL) goto done; 1345#else 1346 xfer = fw_xfer_alloc(M_FWXFER); 1347 if(xfer == NULL){ 1348 goto done; 1349 } 1350 xfer->send.spd = 0; 1351 fp = &xfer->send.hdr; 1352 fp->mode.rreqq.dest_hi = 0xffff; 1353 fp->mode.rreqq.tlrt = 0; 1354 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1355 fp->mode.rreqq.pri = 0; 1356 fp->mode.rreqq.src = 0; 1357 fp->mode.rreqq.dst = FWLOCALBUS | fc->ongonode; 1358 fp->mode.rreqq.dest_lo = addr; 1359 xfer->act.hand = fw_bus_explore_callback; 1360 1361 if (firewire_debug) 1362 printf("node%d: explore addr=0x%x\n", 1363 fc->ongonode, fc->ongoaddr); 1364 err = fw_asyreq(fc, -1, xfer); 1365 if(err){ 1366 fw_xfer_free( xfer); 1367 return; 1368 } 1369#endif 1370 return; 1371done: 1372 /* fw_attach_devs */ 1373 fc->status = FWBUSEXPDONE; 1374 if (firewire_debug) 1375 printf("bus_explore done\n"); 1376 fw_attach_dev(fc); 1377 return; 1378 1379} 1380 1381/* Portable Async. request read quad */ 1382struct fw_xfer * 1383asyreqq(struct firewire_comm *fc, u_int8_t spd, u_int8_t tl, u_int8_t rt, 1384 u_int32_t addr_hi, u_int32_t addr_lo, 1385 void (*hand) __P((struct fw_xfer*))) 1386{ 1387 struct fw_xfer *xfer; 1388 struct fw_pkt *fp; 1389 int err; 1390 1391 xfer = fw_xfer_alloc(M_FWXFER); 1392 if (xfer == NULL) 1393 return NULL; 1394 1395 xfer->send.spd = spd; /* XXX:min(spd, fc->spd) */ 1396 fp = &xfer->send.hdr; 1397 fp->mode.rreqq.dest_hi = addr_hi & 0xffff; 1398 if(tl & FWP_TL_VALID){ 1399 fp->mode.rreqq.tlrt = (tl & 0x3f) << 2; 1400 }else{ 1401 fp->mode.rreqq.tlrt = 0; 1402 } 1403 fp->mode.rreqq.tlrt |= rt & 0x3; 1404 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1405 fp->mode.rreqq.pri = 0; 1406 fp->mode.rreqq.src = 0; 1407 fp->mode.rreqq.dst = addr_hi >> 16; 1408 fp->mode.rreqq.dest_lo = addr_lo; 1409 xfer->act.hand = hand; 1410 1411 err = fw_asyreq(fc, -1, xfer); 1412 if(err){ 1413 fw_xfer_free( xfer); 1414 return NULL; 1415 } 1416 return xfer; 1417} 1418 1419/* 1420 * Callback for the IEEE1394 bus information collection. 1421 */ 1422static void 1423fw_bus_explore_callback(struct fw_xfer *xfer) 1424{ 1425 struct firewire_comm *fc; 1426 struct fw_pkt *sfp,*rfp; 1427 struct csrhdr *chdr; 1428 struct csrdir *csrd; 1429 struct csrreg *csrreg; 1430 u_int32_t offset; 1431 1432 1433 if(xfer == NULL) { 1434 printf("xfer == NULL\n"); 1435 return; 1436 } 1437 fc = xfer->fc; 1438 1439 if (firewire_debug) 1440 printf("node%d: callback addr=0x%x\n", 1441 fc->ongonode, fc->ongoaddr); 1442 1443 if(xfer->resp != 0){ 1444 printf("node%d: resp=%d addr=0x%x\n", 1445 fc->ongonode, xfer->resp, fc->ongoaddr); 1446 goto errnode; 1447 } 1448 1449 sfp = &xfer->send.hdr; 1450 rfp = &xfer->recv.hdr; 1451#if 0 1452 { 1453 u_int32_t *qld; 1454 int i; 1455 qld = (u_int32_t *)xfer->recv.buf; 1456 printf("len:%d\n", xfer->recv.len); 1457 for( i = 0 ; i <= xfer->recv.len && i < 32; i+= 4){ 1458 printf("0x%08x ", rfp->mode.ld[i/4]); 1459 if((i % 16) == 15) printf("\n"); 1460 } 1461 if((i % 16) != 15) printf("\n"); 1462 } 1463#endif 1464 if(fc->ongodev == NULL){ 1465 if(sfp->mode.rreqq.dest_lo == (0xf0000000 | CSRROMOFF)){ 1466 rfp->mode.rresq.data = ntohl(rfp->mode.rresq.data); 1467 chdr = (struct csrhdr *)(&rfp->mode.rresq.data); 1468/* If CSR is minimal confinguration, more investgation is not needed. */ 1469 if(chdr->info_len == 1){ 1470 if (firewire_debug) 1471 printf("node%d: minimal config\n", 1472 fc->ongonode); 1473 goto nextnode; 1474 }else{ 1475 fc->ongoaddr = CSRROMOFF + 0xc; 1476 } 1477 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0xc))){ 1478 fc->ongoeui.hi = ntohl(rfp->mode.rresq.data); 1479 fc->ongoaddr = CSRROMOFF + 0x10; 1480 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0x10))){ 1481 fc->ongoeui.lo = ntohl(rfp->mode.rresq.data); 1482 if (fc->ongoeui.hi == 0 && fc->ongoeui.lo == 0) { 1483 if (firewire_debug) 1484 printf("node%d: eui64 is zero.\n", 1485 fc->ongonode); 1486 goto nextnode; 1487 } 1488 fc->ongoaddr = CSRROMOFF; 1489 } 1490 }else{ 1491 if (fc->ongoaddr == CSRROMOFF && 1492 fc->ongodev->csrrom[0] == ntohl(rfp->mode.rresq.data)) { 1493 fc->ongodev->status = FWDEVATTACHED; 1494 goto nextnode; 1495 } 1496 fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4] = ntohl(rfp->mode.rresq.data); 1497 if(fc->ongoaddr > fc->ongodev->rommax){ 1498 fc->ongodev->rommax = fc->ongoaddr; 1499 } 1500 csrd = SLIST_FIRST(&fc->ongocsr); 1501 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1502 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1503 offset = CSRROMOFF; 1504 }else{ 1505 chdr = (struct csrhdr *)&fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]; 1506 offset = csrd->off; 1507 } 1508 if(fc->ongoaddr > (CSRROMOFF + 0x14) && fc->ongoaddr != offset){ 1509 csrreg = (struct csrreg *)&fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4]; 1510 if( csrreg->key == 0x81 || csrreg->key == 0xd1){ 1511 csrd = SLIST_FIRST(&fc->csrfree); 1512 if(csrd == NULL){ 1513 goto nextnode; 1514 }else{ 1515 csrd->ongoaddr = fc->ongoaddr; 1516 fc->ongoaddr += csrreg->val * 4; 1517 csrd->off = fc->ongoaddr; 1518 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1519 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1520 goto nextaddr; 1521 } 1522 } 1523 } 1524 fc->ongoaddr += 4; 1525 if(((fc->ongoaddr - offset)/4 > chdr->crc_len) && 1526 (fc->ongodev->rommax < 0x414)){ 1527 if(fc->ongodev->rommax <= 0x414){ 1528 csrd = SLIST_FIRST(&fc->csrfree); 1529 if(csrd == NULL) goto nextnode; 1530 csrd->off = fc->ongoaddr; 1531 csrd->ongoaddr = fc->ongoaddr; 1532 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1533 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1534 } 1535 goto nextaddr; 1536 } 1537 1538 while(((fc->ongoaddr - offset)/4 > chdr->crc_len)){ 1539 if(csrd == NULL){ 1540 goto nextnode; 1541 }; 1542 fc->ongoaddr = csrd->ongoaddr + 4; 1543 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1544 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1545 csrd = SLIST_FIRST(&fc->ongocsr); 1546 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1547 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1548 offset = CSRROMOFF; 1549 }else{ 1550 chdr = (struct csrhdr *)&(fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]); 1551 offset = csrd->off; 1552 } 1553 } 1554 if((fc->ongoaddr - CSRROMOFF) > CSRROMSIZE){ 1555 goto nextnode; 1556 } 1557 } 1558nextaddr: 1559 fw_xfer_free( xfer); 1560 fw_bus_explore(fc); 1561 return; 1562errnode: 1563 fc->retry_count++; 1564 if (fc->ongodev != NULL) 1565 fc->ongodev->status = FWDEVINVAL; 1566nextnode: 1567 fw_xfer_free( xfer); 1568 fc->ongonode++; 1569/* housekeeping work space */ 1570 fc->ongoaddr = CSRROMOFF; 1571 fc->ongodev = NULL; 1572 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1573 while((csrd = SLIST_FIRST(&fc->ongocsr)) != NULL){ 1574 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1575 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1576 } 1577 fw_bus_explore(fc); 1578 return; 1579} 1580 1581/* 1582 * To attach sub-devices layer onto IEEE1394 bus. 1583 */ 1584static void 1585fw_attach_dev(struct firewire_comm *fc) 1586{ 1587 struct fw_device *fwdev, *next; 1588 struct fw_xfer *xfer; 1589 int i, err; 1590 device_t *devlistp; 1591 int devcnt; 1592 struct firewire_dev_comm *fdc; 1593 1594 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1595 next = STAILQ_NEXT(fwdev, link); 1596 if (fwdev->status == FWDEVINIT) { 1597 fwdev->status = FWDEVATTACHED; 1598 } else if (fwdev->status == FWDEVINVAL) { 1599 fwdev->rcnt ++; 1600 if (fwdev->rcnt > hold_count) { 1601 /* 1602 * Remove devices which have not been seen 1603 * for a while. 1604 */ 1605 STAILQ_REMOVE(&fc->devices, fwdev, fw_device, 1606 link); 1607 free(fwdev, M_FW); 1608 } 1609 } 1610 } 1611 1612 err = device_get_children(fc->bdev, &devlistp, &devcnt); 1613 if( err != 0 ) 1614 return; 1615 for( i = 0 ; i < devcnt ; i++){ 1616 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 1617 fdc = device_get_softc(devlistp[i]); 1618 if (fdc->post_explore != NULL) 1619 fdc->post_explore(fdc); 1620 } 1621 } 1622 free(devlistp, M_TEMP); 1623 1624 /* call pending handlers */ 1625 i = 0; 1626 while ((xfer = STAILQ_FIRST(&fc->pending))) { 1627 STAILQ_REMOVE_HEAD(&fc->pending, link); 1628 i++; 1629 if (xfer->act.hand) 1630 xfer->act.hand(xfer); 1631 } 1632 if (i > 0) 1633 printf("fw_attach_dev: %d pending handlers called\n", i); 1634 if (fc->retry_count > 0) { 1635 printf("probe failed for %d node\n", fc->retry_count); 1636#if 0 1637 callout_reset(&fc->retry_probe_callout, hz*2, 1638 (void *)fc->ibr, (void *)fc); 1639#endif 1640 } 1641 return; 1642} 1643 1644/* 1645 * To allocate uniq transaction label. 1646 */ 1647static int 1648fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer) 1649{ 1650 u_int i; 1651 struct tlabel *tl, *tmptl; 1652 int s; 1653 static u_int32_t label = 0; 1654 1655 s = splfw(); 1656 for( i = 0 ; i < 0x40 ; i ++){ 1657 label = (label + 1) & 0x3f; 1658 for(tmptl = STAILQ_FIRST(&fc->tlabels[label]); 1659 tmptl != NULL; tmptl = STAILQ_NEXT(tmptl, link)){ 1660 if (tmptl->xfer->send.hdr.mode.hdr.dst == 1661 xfer->send.hdr.mode.hdr.dst) 1662 break; 1663 } 1664 if(tmptl == NULL) { 1665 tl = malloc(sizeof(struct tlabel),M_FW,M_NOWAIT); 1666 if (tl == NULL) { 1667 splx(s); 1668 return (-1); 1669 } 1670 tl->xfer = xfer; 1671 STAILQ_INSERT_TAIL(&fc->tlabels[label], tl, link); 1672 splx(s); 1673 if (firewire_debug > 1) 1674 printf("fw_get_tlabel: dst=%d tl=%d\n", 1675 xfer->send.hdr.mode.hdr.dst, label); 1676 return(label); 1677 } 1678 } 1679 splx(s); 1680 1681 printf("fw_get_tlabel: no free tlabel\n"); 1682 return(-1); 1683} 1684 1685static void 1686fw_rcv_copy(struct fw_rcv_buf *rb) 1687{ 1688 struct fw_pkt *pkt; 1689 u_char *p; 1690 struct tcode_info *tinfo; 1691 u_int res, i, len, plen; 1692 1693 rb->xfer->recv.spd -= rb->spd; 1694 1695 pkt = (struct fw_pkt *)rb->vec->iov_base; 1696 tinfo = &rb->fc->tcode[pkt->mode.hdr.tcode]; 1697 1698 /* Copy header */ 1699 p = (u_char *)&rb->xfer->recv.hdr; 1700 bcopy(rb->vec->iov_base, p, tinfo->hdr_len); 1701 (u_char *)rb->vec->iov_base += tinfo->hdr_len; 1702 rb->vec->iov_len -= tinfo->hdr_len; 1703 1704 /* Copy payload */ 1705 p = (u_char *)rb->xfer->recv.payload; 1706 res = rb->xfer->recv.pay_len; 1707 1708 /* special handling for RRESQ */ 1709 if (pkt->mode.hdr.tcode == FWTCODE_RRESQ && 1710 p != NULL && res >= sizeof(u_int32_t)) { 1711 *(u_int32_t *)p = pkt->mode.rresq.data; 1712 rb->xfer->recv.pay_len = sizeof(u_int32_t); 1713 return; 1714 } 1715 1716 if ((tinfo->flag & FWTI_BLOCK_ASY) == 0) 1717 return; 1718 1719 plen = pkt->mode.rresb.len; 1720 1721 for (i = 0; i < rb->nvec; i++, rb->vec++) { 1722 len = MIN(rb->vec->iov_len, plen); 1723 if (res < len) { 1724 printf("rcv buffer(%d) is %d bytes short.\n", 1725 rb->xfer->recv.pay_len, len - res); 1726 len = res; 1727 } 1728 bcopy(rb->vec->iov_base, p, len); 1729 p += len; 1730 res -= len; 1731 plen -= len; 1732 if (res == 0 || plen == 0) 1733 break; 1734 } 1735 rb->xfer->recv.pay_len -= res; 1736 1737} 1738 1739/* 1740 * Generic packet receving process. 1741 */ 1742void 1743fw_rcv(struct fw_rcv_buf *rb) 1744{ 1745 struct fw_pkt *fp, *resfp; 1746 struct fw_bind *bind; 1747 int tcode, s; 1748 int i, len, oldstate; 1749#if 0 1750 { 1751 u_int32_t *qld; 1752 int i; 1753 qld = (u_int32_t *)buf; 1754 printf("spd %d len:%d\n", spd, len); 1755 for( i = 0 ; i <= len && i < 32; i+= 4){ 1756 printf("0x%08x ", ntohl(qld[i/4])); 1757 if((i % 16) == 15) printf("\n"); 1758 } 1759 if((i % 16) != 15) printf("\n"); 1760 } 1761#endif 1762 fp = (struct fw_pkt *)rb->vec[0].iov_base; 1763 tcode = fp->mode.common.tcode; 1764 switch (tcode) { 1765 case FWTCODE_WRES: 1766 case FWTCODE_RRESQ: 1767 case FWTCODE_RRESB: 1768 case FWTCODE_LRES: 1769 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1770 fp->mode.hdr.tlrt >> 2); 1771 if(rb->xfer == NULL) { 1772 printf("fw_rcv: unknown response " 1773 "tcode=%d src=0x%x tl=0x%x rt=%d data=0x%x\n", 1774 tcode, 1775 fp->mode.hdr.src, 1776 fp->mode.hdr.tlrt >> 2, 1777 fp->mode.hdr.tlrt & 3, 1778 fp->mode.rresq.data); 1779#if 1 1780 printf("try ad-hoc work around!!\n"); 1781 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1782 (fp->mode.hdr.tlrt >> 2)^3); 1783 if (rb->xfer == NULL) { 1784 printf("no use...\n"); 1785 goto err; 1786 } 1787#else 1788 goto err; 1789#endif 1790 } 1791 fw_rcv_copy(rb); 1792 if (rb->xfer->recv.hdr.mode.wres.rtcode != RESP_CMP) 1793 rb->xfer->resp = EIO; 1794 else 1795 rb->xfer->resp = 0; 1796 /* make sure the packet is drained in AT queue */ 1797 oldstate = rb->xfer->state; 1798 rb->xfer->state = FWXF_RCVD; 1799 switch (oldstate) { 1800 case FWXF_SENT: 1801 fw_xfer_done(rb->xfer); 1802 break; 1803 case FWXF_START: 1804#if 0 1805 if (firewire_debug) 1806 printf("not sent yet tl=%x\n", rb->xfer->tl); 1807#endif 1808 break; 1809 default: 1810 printf("unexpected state %d\n", rb->xfer->state); 1811 } 1812 return; 1813 case FWTCODE_WREQQ: 1814 case FWTCODE_WREQB: 1815 case FWTCODE_RREQQ: 1816 case FWTCODE_RREQB: 1817 case FWTCODE_LREQ: 1818 bind = fw_bindlookup(rb->fc, fp->mode.rreqq.dest_hi, 1819 fp->mode.rreqq.dest_lo); 1820 if(bind == NULL){ 1821#if __FreeBSD_version >= 500000 1822 printf("Unknown service addr 0x%04x:0x%08x tcode=%x src=0x%x data=%x\n", 1823#else 1824 printf("Unknown service addr 0x%04x:0x%08x tcode=%x src=0x%x data=%lx\n", 1825#endif 1826 fp->mode.wreqq.dest_hi, 1827 fp->mode.wreqq.dest_lo, 1828 tcode, 1829 fp->mode.hdr.src, 1830 ntohl(fp->mode.wreqq.data)); 1831 if (rb->fc->status == FWBUSRESET) { 1832 printf("fw_rcv: cannot respond(bus reset)!\n"); 1833 goto err; 1834 } 1835 rb->xfer = fw_xfer_alloc(M_FWXFER); 1836 if(rb->xfer == NULL){ 1837 return; 1838 } 1839 rb->xfer->send.spd = rb->spd; 1840 rb->xfer->send.pay_len = 0; 1841 resfp = &rb->xfer->send.hdr; 1842 switch (tcode) { 1843 case FWTCODE_WREQQ: 1844 case FWTCODE_WREQB: 1845 resfp->mode.hdr.tcode = FWTCODE_WRES; 1846 break; 1847 case FWTCODE_RREQQ: 1848 resfp->mode.hdr.tcode = FWTCODE_RRESQ; 1849 break; 1850 case FWTCODE_RREQB: 1851 resfp->mode.hdr.tcode = FWTCODE_RRESB; 1852 break; 1853 case FWTCODE_LREQ: 1854 resfp->mode.hdr.tcode = FWTCODE_LRES; 1855 break; 1856 } 1857 resfp->mode.hdr.dst = fp->mode.hdr.src; 1858 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt; 1859 resfp->mode.hdr.pri = fp->mode.hdr.pri; 1860 resfp->mode.rresb.rtcode = RESP_ADDRESS_ERROR; 1861 resfp->mode.rresb.extcode = 0; 1862 resfp->mode.rresb.len = 0; 1863/* 1864 rb->xfer->act.hand = fw_asy_callback; 1865*/ 1866 rb->xfer->act.hand = fw_xfer_free; 1867 if(fw_asyreq(rb->fc, -1, rb->xfer)){ 1868 fw_xfer_free(rb->xfer); 1869 return; 1870 } 1871 goto err; 1872 } 1873 len = 0; 1874 for (i = 0; i < rb->nvec; i ++) 1875 len += rb->vec[i].iov_len; 1876 switch(bind->act_type){ 1877 case FWACT_XFER: 1878 /* splfw()?? */ 1879 rb->xfer = STAILQ_FIRST(&bind->xferlist); 1880 if (rb->xfer == NULL) { 1881 printf("Discard a packet for this bind.\n"); 1882 goto err; 1883 } 1884 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 1885 fw_rcv_copy(rb); 1886 if (rb->fc->status != FWBUSRESET) 1887 rb->xfer->act.hand(rb->xfer); 1888 else 1889 STAILQ_INSERT_TAIL(&rb->fc->pending, 1890 rb->xfer, link); 1891 return; 1892 break; 1893 case FWACT_CH: 1894 if(rb->fc->ir[bind->sub]->queued >= 1895 rb->fc->ir[bind->sub]->maxq){ 1896 device_printf(rb->fc->bdev, 1897 "Discard a packet %x %d\n", 1898 bind->sub, 1899 rb->fc->ir[bind->sub]->queued); 1900 goto err; 1901 } 1902 rb->xfer = STAILQ_FIRST(&bind->xferlist); 1903 if (rb->xfer == NULL) { 1904 printf("Discard packet for this bind\n"); 1905 goto err; 1906 } 1907 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 1908 fw_rcv_copy(rb); 1909 s = splfw(); 1910 rb->fc->ir[bind->sub]->queued++; 1911 STAILQ_INSERT_TAIL(&rb->fc->ir[bind->sub]->q, 1912 rb->xfer, link); 1913 splx(s); 1914 1915 wakeup((caddr_t)rb->fc->ir[bind->sub]); 1916 1917 return; 1918 break; 1919 default: 1920 goto err; 1921 break; 1922 } 1923 break; 1924#if 0 /* shouldn't happen ?? or for GASP */ 1925 case FWTCODE_STREAM: 1926 { 1927 struct fw_xferq *xferq; 1928 1929 xferq = rb->fc->ir[sub]; 1930#if 0 1931 printf("stream rcv dma %d len %d off %d spd %d\n", 1932 sub, len, off, spd); 1933#endif 1934 if(xferq->queued >= xferq->maxq) { 1935 printf("receive queue is full\n"); 1936 goto err; 1937 } 1938 /* XXX get xfer from xfer queue, we don't need copy for 1939 per packet mode */ 1940 rb->xfer = fw_xfer_alloc_buf(M_FWXFER, 0, /* XXX */ 1941 vec[0].iov_len); 1942 if (rb->xfer == NULL) goto err; 1943 fw_rcv_copy(rb) 1944 s = splfw(); 1945 xferq->queued++; 1946 STAILQ_INSERT_TAIL(&xferq->q, rb->xfer, link); 1947 splx(s); 1948 sc = device_get_softc(rb->fc->bdev); 1949#if __FreeBSD_version >= 500000 1950 if (SEL_WAITING(&xferq->rsel)) 1951#else 1952 if (&xferq->rsel.si_pid != 0) 1953#endif 1954 selwakeup(&xferq->rsel); 1955 if (xferq->flag & FWXFERQ_WAKEUP) { 1956 xferq->flag &= ~FWXFERQ_WAKEUP; 1957 wakeup((caddr_t)xferq); 1958 } 1959 if (xferq->flag & FWXFERQ_HANDLER) { 1960 xferq->hand(xferq); 1961 } 1962 return; 1963 break; 1964 } 1965#endif 1966 default: 1967 printf("fw_rcv: unknow tcode %d\n", tcode); 1968 break; 1969 } 1970err: 1971 return; 1972} 1973 1974/* 1975 * Post process for Bus Manager election process. 1976 */ 1977static void 1978fw_try_bmr_callback(struct fw_xfer *xfer) 1979{ 1980 struct firewire_comm *fc; 1981 int bmr; 1982 1983 if (xfer == NULL) 1984 return; 1985 fc = xfer->fc; 1986 if (xfer->resp != 0) 1987 goto error; 1988 if (xfer->recv.payload == NULL) 1989 goto error; 1990 if (xfer->recv.hdr.mode.lres.rtcode != FWRCODE_COMPLETE) 1991 goto error; 1992 1993 bmr = ntohl(xfer->recv.payload[0]); 1994 if (bmr == 0x3f) 1995 bmr = fc->nodeid; 1996 1997 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f); 1998 fw_xfer_free_buf(xfer); 1999 fw_bmr(fc); 2000 return; 2001 2002error: 2003 device_printf(fc->bdev, "bus manager election failed\n"); 2004 fw_xfer_free_buf(xfer); 2005} 2006 2007 2008/* 2009 * To candidate Bus Manager election process. 2010 */ 2011static void 2012fw_try_bmr(void *arg) 2013{ 2014 struct fw_xfer *xfer; 2015 struct firewire_comm *fc = (struct firewire_comm *)arg; 2016 struct fw_pkt *fp; 2017 int err = 0; 2018 2019 xfer = fw_xfer_alloc_buf(M_FWXFER, 8, 4); 2020 if(xfer == NULL){ 2021 return; 2022 } 2023 xfer->send.spd = 0; 2024 fc->status = FWBUSMGRELECT; 2025 2026 fp = &xfer->send.hdr; 2027 fp->mode.lreq.dest_hi = 0xffff; 2028 fp->mode.lreq.tlrt = 0; 2029 fp->mode.lreq.tcode = FWTCODE_LREQ; 2030 fp->mode.lreq.pri = 0; 2031 fp->mode.lreq.src = 0; 2032 fp->mode.lreq.len = 8; 2033 fp->mode.lreq.extcode = EXTCODE_CMP_SWAP; 2034 fp->mode.lreq.dst = FWLOCALBUS | fc->irm; 2035 fp->mode.lreq.dest_lo = 0xf0000000 | BUS_MGR_ID; 2036 xfer->send.payload[0] = htonl(0x3f); 2037 xfer->send.payload[1] = htonl(fc->nodeid); 2038 xfer->act.hand = fw_try_bmr_callback; 2039 2040 err = fw_asyreq(fc, -1, xfer); 2041 if(err){ 2042 fw_xfer_free_buf(xfer); 2043 return; 2044 } 2045 return; 2046} 2047 2048#ifdef FW_VMACCESS 2049/* 2050 * Software implementation for physical memory block access. 2051 * XXX:Too slow, usef for debug purpose only. 2052 */ 2053static void 2054fw_vmaccess(struct fw_xfer *xfer){ 2055 struct fw_pkt *rfp, *sfp = NULL; 2056 u_int32_t *ld = (u_int32_t *)xfer->recv.buf; 2057 2058 printf("vmaccess spd:%2x len:%03x data:%08x %08x %08x %08x\n", 2059 xfer->spd, xfer->recv.len, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 2060 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 2061 if(xfer->resp != 0){ 2062 fw_xfer_free( xfer); 2063 return; 2064 } 2065 if(xfer->recv.buf == NULL){ 2066 fw_xfer_free( xfer); 2067 return; 2068 } 2069 rfp = (struct fw_pkt *)xfer->recv.buf; 2070 switch(rfp->mode.hdr.tcode){ 2071 /* XXX need fix for 64bit arch */ 2072 case FWTCODE_WREQB: 2073 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2074 xfer->send.len = 12; 2075 sfp = (struct fw_pkt *)xfer->send.buf; 2076 bcopy(rfp->mode.wreqb.payload, 2077 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len)); 2078 sfp->mode.wres.tcode = FWTCODE_WRES; 2079 sfp->mode.wres.rtcode = 0; 2080 break; 2081 case FWTCODE_WREQQ: 2082 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2083 xfer->send.len = 12; 2084 sfp->mode.wres.tcode = FWTCODE_WRES; 2085 *((u_int32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data; 2086 sfp->mode.wres.rtcode = 0; 2087 break; 2088 case FWTCODE_RREQB: 2089 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_FW, M_NOWAIT); 2090 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len); 2091 sfp = (struct fw_pkt *)xfer->send.buf; 2092 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo), 2093 sfp->mode.rresb.payload, (u_int16_t)ntohs(rfp->mode.rreqb.len)); 2094 sfp->mode.rresb.tcode = FWTCODE_RRESB; 2095 sfp->mode.rresb.len = rfp->mode.rreqb.len; 2096 sfp->mode.rresb.rtcode = 0; 2097 sfp->mode.rresb.extcode = 0; 2098 break; 2099 case FWTCODE_RREQQ: 2100 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 2101 xfer->send.len = 16; 2102 sfp = (struct fw_pkt *)xfer->send.buf; 2103 sfp->mode.rresq.data = *(u_int32_t *)(ntohl(rfp->mode.rreqq.dest_lo)); 2104 sfp->mode.wres.tcode = FWTCODE_RRESQ; 2105 sfp->mode.rresb.rtcode = 0; 2106 break; 2107 default: 2108 fw_xfer_free( xfer); 2109 return; 2110 } 2111 sfp->mode.hdr.dst = rfp->mode.hdr.src; 2112 xfer->dst = ntohs(rfp->mode.hdr.src); 2113 xfer->act.hand = fw_xfer_free; 2114 xfer->retry_req = fw_asybusy; 2115 2116 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt; 2117 sfp->mode.hdr.pri = 0; 2118 2119 fw_asyreq(xfer->fc, -1, xfer); 2120/**/ 2121 return; 2122} 2123#endif 2124 2125/* 2126 * CRC16 check-sum for IEEE1394 register blocks. 2127 */ 2128u_int16_t 2129fw_crc16(u_int32_t *ptr, u_int32_t len){ 2130 u_int32_t i, sum, crc = 0; 2131 int shift; 2132 len = (len + 3) & ~3; 2133 for(i = 0 ; i < len ; i+= 4){ 2134 for( shift = 28 ; shift >= 0 ; shift -= 4){ 2135 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf; 2136 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum; 2137 } 2138 crc &= 0xffff; 2139 } 2140 return((u_int16_t) crc); 2141} 2142 2143static int 2144fw_bmr(struct firewire_comm *fc) 2145{ 2146 struct fw_device fwdev; 2147 union fw_self_id *self_id; 2148 int cmstr; 2149 u_int32_t quad; 2150 2151 /* Check to see if the current root node is cycle master capable */ 2152 self_id = &fc->topology_map->self_id[fc->max_node]; 2153 if (fc->max_node > 0) { 2154 /* XXX check cmc bit of businfo block rather than contender */ 2155 if (self_id->p0.link_active && self_id->p0.contender) 2156 cmstr = fc->max_node; 2157 else { 2158 device_printf(fc->bdev, 2159 "root node is not cycle master capable\n"); 2160 /* XXX shall we be the cycle master? */ 2161 cmstr = fc->nodeid; 2162 /* XXX need bus reset */ 2163 } 2164 } else 2165 cmstr = -1; 2166 2167 device_printf(fc->bdev, "bus manager %d ", CSRARC(fc, BUS_MGR_ID)); 2168 if(CSRARC(fc, BUS_MGR_ID) != fc->nodeid) { 2169 /* We are not the bus manager */ 2170 printf("\n"); 2171 return(0); 2172 } 2173 printf("(me)\n"); 2174 2175 /* Optimize gapcount */ 2176 if(fc->max_hop <= MAX_GAPHOP ) 2177 fw_phy_config(fc, cmstr, gap_cnt[fc->max_hop]); 2178 /* If we are the cycle master, nothing to do */ 2179 if (cmstr == fc->nodeid || cmstr == -1) 2180 return 0; 2181 /* Bus probe has not finished, make dummy fwdev for cmstr */ 2182 bzero(&fwdev, sizeof(fwdev)); 2183 fwdev.fc = fc; 2184 fwdev.dst = cmstr; 2185 fwdev.speed = 0; 2186 fwdev.maxrec = 8; /* 512 */ 2187 fwdev.status = FWDEVINIT; 2188 /* Set cmstr bit on the cycle master */ 2189 quad = htonl(1 << 8); 2190 fwmem_write_quad(&fwdev, NULL, 0/*spd*/, 2191 0xffff, 0xf0000000 | STATE_SET, &quad, fw_asy_callback_free); 2192 2193 return 0; 2194} 2195 2196static int 2197fw_modevent(module_t mode, int type, void *data) 2198{ 2199 int err = 0; 2200#if __FreeBSD_version >= 500000 2201 static eventhandler_tag fwdev_ehtag = NULL; 2202#endif 2203 2204 switch (type) { 2205 case MOD_LOAD: 2206#if __FreeBSD_version >= 500000 2207 fwdev_ehtag = EVENTHANDLER_REGISTER(dev_clone, 2208 fwdev_clone, 0, 1000); 2209#endif 2210 break; 2211 case MOD_UNLOAD: 2212#if __FreeBSD_version >= 500000 2213 if (fwdev_ehtag != NULL) 2214 EVENTHANDLER_DEREGISTER(dev_clone, fwdev_ehtag); 2215#endif 2216 break; 2217 case MOD_SHUTDOWN: 2218 break; 2219 } 2220 return (err); 2221} 2222 2223 2224DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,fw_modevent,0); 2225MODULE_VERSION(firewire, 1); 2226