firewire.c revision 129274
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 129274 2004-05-16 11:26:39Z dfr $ 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 defined(__DragonFly__) || __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#ifdef __DragonFly__ 55#include "firewire.h" 56#include "firewirereg.h" 57#include "fwmem.h" 58#include "iec13213.h" 59#include "iec68113.h" 60#else 61#include <dev/firewire/firewire.h> 62#include <dev/firewire/firewirereg.h> 63#include <dev/firewire/fwmem.h> 64#include <dev/firewire/iec13213.h> 65#include <dev/firewire/iec68113.h> 66#endif 67 68struct crom_src_buf { 69 struct crom_src src; 70 struct crom_chunk root; 71 struct crom_chunk vendor; 72 struct crom_chunk hw; 73}; 74 75int firewire_debug=0, try_bmr=1, hold_count=3; 76SYSCTL_INT(_debug, OID_AUTO, firewire_debug, CTLFLAG_RW, &firewire_debug, 0, 77 "FireWire driver debug flag"); 78SYSCTL_NODE(_hw, OID_AUTO, firewire, CTLFLAG_RD, 0, "FireWire Subsystem"); 79SYSCTL_INT(_hw_firewire, OID_AUTO, try_bmr, CTLFLAG_RW, &try_bmr, 0, 80 "Try to be a bus manager"); 81SYSCTL_INT(_hw_firewire, OID_AUTO, hold_count, CTLFLAG_RW, &hold_count, 0, 82 "Number of count of bus resets for removing lost device information"); 83 84MALLOC_DEFINE(M_FW, "firewire", "FireWire"); 85MALLOC_DEFINE(M_FWXFER, "fw_xfer", "XFER/FireWire"); 86 87#define FW_MAXASYRTY 4 88 89devclass_t firewire_devclass; 90 91static void firewire_identify (driver_t *, device_t); 92static int firewire_probe (device_t); 93static int firewire_attach (device_t); 94static int firewire_detach (device_t); 95static int firewire_resume (device_t); 96#if 0 97static int firewire_shutdown (device_t); 98#endif 99static device_t firewire_add_child (device_t, int, const char *, int); 100static void fw_try_bmr (void *); 101static void fw_try_bmr_callback (struct fw_xfer *); 102static void fw_asystart (struct fw_xfer *); 103static int fw_get_tlabel (struct firewire_comm *, struct fw_xfer *); 104static void fw_bus_probe (struct firewire_comm *); 105static void fw_bus_explore (struct firewire_comm *); 106static void fw_bus_explore_callback (struct fw_xfer *); 107static void fw_attach_dev (struct firewire_comm *); 108#ifdef FW_VMACCESS 109static void fw_vmaccess (struct fw_xfer *); 110#endif 111struct fw_xfer *asyreqq (struct firewire_comm *, u_int8_t, u_int8_t, u_int8_t, 112 u_int32_t, u_int32_t, void (*)(struct fw_xfer *)); 113static int fw_bmr (struct firewire_comm *); 114 115static device_method_t firewire_methods[] = { 116 /* Device interface */ 117 DEVMETHOD(device_identify, firewire_identify), 118 DEVMETHOD(device_probe, firewire_probe), 119 DEVMETHOD(device_attach, firewire_attach), 120 DEVMETHOD(device_detach, firewire_detach), 121 DEVMETHOD(device_suspend, bus_generic_suspend), 122 DEVMETHOD(device_resume, firewire_resume), 123 DEVMETHOD(device_shutdown, bus_generic_shutdown), 124 125 /* Bus interface */ 126 DEVMETHOD(bus_add_child, firewire_add_child), 127 DEVMETHOD(bus_print_child, bus_generic_print_child), 128 129 { 0, 0 } 130}; 131char *linkspeed[] = { 132 "S100", "S200", "S400", "S800", 133 "S1600", "S3200", "undef", "undef" 134}; 135 136static char *tcode_str[] = { 137 "WREQQ", "WREQB", "WRES", "undef", 138 "RREQQ", "RREQB", "RRESQ", "RRESB", 139 "CYCS", "LREQ", "STREAM", "LRES", 140 "undef", "undef", "PHY", "undef" 141}; 142 143/* IEEE-1394a Table C-2 Gap count as a function of hops*/ 144#define MAX_GAPHOP 15 145u_int gap_cnt[] = { 5, 5, 7, 8, 10, 13, 16, 18, 146 21, 24, 26, 29, 32, 35, 37, 40}; 147 148static driver_t firewire_driver = { 149 "firewire", 150 firewire_methods, 151 sizeof(struct firewire_softc), 152}; 153 154/* 155 * Lookup fwdev by node id. 156 */ 157struct fw_device * 158fw_noderesolve_nodeid(struct firewire_comm *fc, int dst) 159{ 160 struct fw_device *fwdev; 161 int s; 162 163 s = splfw(); 164 STAILQ_FOREACH(fwdev, &fc->devices, link) 165 if (fwdev->dst == dst && fwdev->status != FWDEVINVAL) 166 break; 167 splx(s); 168 169 return fwdev; 170} 171 172/* 173 * Lookup fwdev by EUI64. 174 */ 175struct fw_device * 176fw_noderesolve_eui64(struct firewire_comm *fc, struct fw_eui64 *eui) 177{ 178 struct fw_device *fwdev; 179 int s; 180 181 s = splfw(); 182 STAILQ_FOREACH(fwdev, &fc->devices, link) 183 if (FW_EUI64_EQUAL(fwdev->eui, *eui)) 184 break; 185 splx(s); 186 187 if(fwdev == NULL) return NULL; 188 if(fwdev->status == FWDEVINVAL) return NULL; 189 return fwdev; 190} 191 192/* 193 * Async. request procedure for userland application. 194 */ 195int 196fw_asyreq(struct firewire_comm *fc, int sub, struct fw_xfer *xfer) 197{ 198 int err = 0; 199 struct fw_xferq *xferq; 200 int tl = 0, len; 201 struct fw_pkt *fp; 202 int tcode; 203 struct tcode_info *info; 204 205 if(xfer == NULL) return EINVAL; 206 if(xfer->act.hand == NULL){ 207 printf("act.hand == NULL\n"); 208 return EINVAL; 209 } 210 fp = &xfer->send.hdr; 211 212 tcode = fp->mode.common.tcode & 0xf; 213 info = &fc->tcode[tcode]; 214 if (info->flag == 0) { 215 printf("invalid tcode=%x\n", tcode); 216 return EINVAL; 217 } 218 if (info->flag & FWTI_REQ) 219 xferq = fc->atq; 220 else 221 xferq = fc->ats; 222 len = info->hdr_len; 223 if (xfer->send.pay_len > MAXREC(fc->maxrec)) { 224 printf("send.pay_len > maxrec\n"); 225 return EINVAL; 226 } 227 if (info->flag & FWTI_BLOCK_STR) 228 len = fp->mode.stream.len; 229 else if (info->flag & FWTI_BLOCK_ASY) 230 len = fp->mode.rresb.len; 231 else 232 len = 0; 233 if (len != xfer->send.pay_len){ 234 printf("len(%d) != send.pay_len(%d) %s(%x)\n", 235 len, xfer->send.pay_len, tcode_str[tcode], tcode); 236 return EINVAL; 237 } 238 239 if(xferq->start == NULL){ 240 printf("xferq->start == NULL\n"); 241 return EINVAL; 242 } 243 if(!(xferq->queued < xferq->maxq)){ 244 device_printf(fc->bdev, "Discard a packet (queued=%d)\n", 245 xferq->queued); 246 return EINVAL; 247 } 248 249 if (info->flag & FWTI_TLABEL) { 250 if((tl = fw_get_tlabel(fc, xfer)) == -1 ) 251 return EIO; 252 fp->mode.hdr.tlrt = tl << 2; 253 } 254 255 xfer->tl = tl; 256 xfer->resp = 0; 257 xfer->fc = fc; 258 xfer->q = xferq; 259 xfer->retry_req = fw_asybusy; 260 261 fw_asystart(xfer); 262 return err; 263} 264/* 265 * Wakeup blocked process. 266 */ 267void 268fw_asy_callback(struct fw_xfer *xfer){ 269 wakeup(xfer); 270 return; 271} 272/* 273 * Postpone to later retry. 274 */ 275void fw_asybusy(struct fw_xfer *xfer){ 276 printf("fw_asybusy\n"); 277/* 278 xfer->ch = timeout((timeout_t *)fw_asystart, (void *)xfer, 20000); 279*/ 280#if 0 281 DELAY(20000); 282#endif 283 fw_asystart(xfer); 284 return; 285} 286 287/* 288 * Async. request with given xfer structure. 289 */ 290static void 291fw_asystart(struct fw_xfer *xfer) 292{ 293 struct firewire_comm *fc = xfer->fc; 294 int s; 295 if(xfer->retry++ >= fc->max_asyretry){ 296 device_printf(fc->bdev, "max_asyretry exceeded\n"); 297 xfer->resp = EBUSY; 298 xfer->state = FWXF_BUSY; 299 xfer->act.hand(xfer); 300 return; 301 } 302#if 0 /* XXX allow bus explore packets only after bus rest */ 303 if (fc->status < FWBUSEXPLORE) { 304 xfer->resp = EAGAIN; 305 xfer->state = FWXF_BUSY; 306 if (xfer->act.hand != NULL) 307 xfer->act.hand(xfer); 308 return; 309 } 310#endif 311 microtime(&xfer->tv); 312 s = splfw(); 313 xfer->state = FWXF_INQ; 314 STAILQ_INSERT_TAIL(&xfer->q->q, xfer, link); 315 xfer->q->queued ++; 316 splx(s); 317 /* XXX just queue for mbuf */ 318 if (xfer->mbuf == NULL) 319 xfer->q->start(fc); 320 return; 321} 322 323static void 324firewire_identify(driver_t *driver, device_t parent) 325{ 326 BUS_ADD_CHILD(parent, 0, "firewire", -1); 327} 328 329static int 330firewire_probe(device_t dev) 331{ 332 device_set_desc(dev, "IEEE1394(FireWire) bus"); 333 return (0); 334} 335 336static void 337firewire_xfer_timeout(struct firewire_comm *fc) 338{ 339 struct fw_xfer *xfer; 340 struct tlabel *tl; 341 struct timeval tv; 342 struct timeval split_timeout; 343 int i, s; 344 345 split_timeout.tv_sec = 0; 346 split_timeout.tv_usec = 200 * 1000; /* 200 msec */ 347 348 microtime(&tv); 349 timevalsub(&tv, &split_timeout); 350 351 s = splfw(); 352 for (i = 0; i < 0x40; i ++) { 353 while ((tl = STAILQ_FIRST(&fc->tlabels[i])) != NULL) { 354 xfer = tl->xfer; 355 if (timevalcmp(&xfer->tv, &tv, >)) 356 /* the rests are newer than this */ 357 break; 358 if (xfer->state == FWXF_START) 359 /* not sent yet */ 360 break; 361 device_printf(fc->bdev, 362 "split transaction timeout dst=0x%x tl=0x%x state=%d\n", 363 xfer->send.hdr.mode.hdr.dst, i, xfer->state); 364 xfer->resp = ETIMEDOUT; 365 STAILQ_REMOVE_HEAD(&fc->tlabels[i], link); 366 fw_xfer_done(xfer); 367 } 368 } 369 splx(s); 370} 371 372#define WATCHDOC_HZ 10 373static void 374firewire_watchdog(void *arg) 375{ 376 struct firewire_comm *fc; 377 static int watchdoc_clock = 0; 378 379 fc = (struct firewire_comm *)arg; 380 381 /* 382 * At boot stage, the device interrupt is disabled and 383 * We encounter a timeout easily. To avoid this, 384 * ignore clock interrupt for a while. 385 */ 386 if (watchdoc_clock > WATCHDOC_HZ * 15) { 387 firewire_xfer_timeout(fc); 388 fc->timeout(fc); 389 } else 390 watchdoc_clock ++; 391 392 callout_reset(&fc->timeout_callout, hz / WATCHDOC_HZ, 393 (void *)firewire_watchdog, (void *)fc); 394} 395 396/* 397 * The attach routine. 398 */ 399static int 400firewire_attach(device_t dev) 401{ 402 int unit; 403 struct firewire_softc *sc = device_get_softc(dev); 404 device_t pa = device_get_parent(dev); 405 struct firewire_comm *fc; 406 407 fc = (struct firewire_comm *)device_get_softc(pa); 408 sc->fc = fc; 409 fc->status = FWBUSNOTREADY; 410 411 unit = device_get_unit(dev); 412 if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA; 413 414 fwdev_makedev(sc); 415 416 CALLOUT_INIT(&sc->fc->timeout_callout); 417 CALLOUT_INIT(&sc->fc->bmr_callout); 418 CALLOUT_INIT(&sc->fc->retry_probe_callout); 419 CALLOUT_INIT(&sc->fc->busprobe_callout); 420 421 callout_reset(&sc->fc->timeout_callout, hz, 422 (void *)firewire_watchdog, (void *)sc->fc); 423 424 /* Locate our children */ 425 bus_generic_probe(dev); 426 427 /* launch attachement of the added children */ 428 bus_generic_attach(dev); 429 430 /* bus_reset */ 431 fw_busreset(fc); 432 fc->ibr(fc); 433 434 return 0; 435} 436 437/* 438 * Attach it as child. 439 */ 440static device_t 441firewire_add_child(device_t dev, int order, const char *name, int unit) 442{ 443 device_t child; 444 struct firewire_softc *sc; 445 446 sc = (struct firewire_softc *)device_get_softc(dev); 447 child = device_add_child(dev, name, unit); 448 if (child) { 449 device_set_ivars(child, sc->fc); 450 device_probe_and_attach(child); 451 } 452 453 return child; 454} 455 456static int 457firewire_resume(device_t dev) 458{ 459 struct firewire_softc *sc; 460 461 sc = (struct firewire_softc *)device_get_softc(dev); 462 sc->fc->status = FWBUSNOTREADY; 463 464 bus_generic_resume(dev); 465 466 return(0); 467} 468 469/* 470 * Dettach it. 471 */ 472static int 473firewire_detach(device_t dev) 474{ 475 struct firewire_softc *sc; 476 struct csrdir *csrd, *next; 477 struct fw_device *fwdev, *fwdev_next; 478 int err; 479 480 sc = (struct firewire_softc *)device_get_softc(dev); 481 if ((err = fwdev_destroydev(sc)) != 0) 482 return err; 483 484 if ((err = bus_generic_detach(dev)) != 0) 485 return err; 486 487 callout_stop(&sc->fc->timeout_callout); 488 callout_stop(&sc->fc->bmr_callout); 489 callout_stop(&sc->fc->retry_probe_callout); 490 callout_stop(&sc->fc->busprobe_callout); 491 492 /* XXX xfree_free and untimeout on all xfers */ 493 for (fwdev = STAILQ_FIRST(&sc->fc->devices); fwdev != NULL; 494 fwdev = fwdev_next) { 495 fwdev_next = STAILQ_NEXT(fwdev, link); 496 free(fwdev, M_FW); 497 } 498 for (csrd = SLIST_FIRST(&sc->fc->csrfree); csrd != NULL; csrd = next) { 499 next = SLIST_NEXT(csrd, link); 500 free(csrd, M_FW); 501 } 502 free(sc->fc->topology_map, M_FW); 503 free(sc->fc->speed_map, M_FW); 504 free(sc->fc->crom_src_buf, M_FW); 505 return(0); 506} 507#if 0 508static int 509firewire_shutdown( device_t dev ) 510{ 511 return 0; 512} 513#endif 514 515 516static void 517fw_xferq_drain(struct fw_xferq *xferq) 518{ 519 struct fw_xfer *xfer; 520 521 while ((xfer = STAILQ_FIRST(&xferq->q)) != NULL) { 522 STAILQ_REMOVE_HEAD(&xferq->q, link); 523 xferq->queued --; 524 xfer->resp = EAGAIN; 525 fw_xfer_done(xfer); 526 } 527} 528 529void 530fw_drain_txq(struct firewire_comm *fc) 531{ 532 int i; 533 534 fw_xferq_drain(fc->atq); 535 fw_xferq_drain(fc->ats); 536 for(i = 0; i < fc->nisodma; i++) 537 fw_xferq_drain(fc->it[i]); 538} 539 540static void 541fw_reset_csr(struct firewire_comm *fc) 542{ 543 int i; 544 545 CSRARC(fc, STATE_CLEAR) 546 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 547 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 548 CSRARC(fc, NODE_IDS) = 0x3f; 549 550 CSRARC(fc, TOPO_MAP + 8) = 0; 551 fc->irm = -1; 552 553 fc->max_node = -1; 554 555 for(i = 2; i < 0x100/4 - 2 ; i++){ 556 CSRARC(fc, SPED_MAP + i * 4) = 0; 557 } 558 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 559 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 560 CSRARC(fc, RESET_START) = 0; 561 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0; 562 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19; 563 CSRARC(fc, CYCLE_TIME) = 0x0; 564 CSRARC(fc, BUS_TIME) = 0x0; 565 CSRARC(fc, BUS_MGR_ID) = 0x3f; 566 CSRARC(fc, BANDWIDTH_AV) = 4915; 567 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff; 568 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff; 569 CSRARC(fc, IP_CHANNELS) = (1 << 31); 570 571 CSRARC(fc, CONF_ROM) = 0x04 << 24; 572 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */ 573 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 | 574 1 << 28 | 0xff << 16 | 0x09 << 8; 575 CSRARC(fc, CONF_ROM + 0xc) = 0; 576 577/* DV depend CSRs see blue book */ 578 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON; 579 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON; 580 581 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 ); 582 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 583} 584 585static void 586fw_init_crom(struct firewire_comm *fc) 587{ 588 struct crom_src *src; 589 590 fc->crom_src_buf = (struct crom_src_buf *) 591 malloc(sizeof(struct crom_src_buf), M_FW, M_WAITOK | M_ZERO); 592 if (fc->crom_src_buf == NULL) 593 return; 594 595 src = &fc->crom_src_buf->src; 596 bzero(src, sizeof(struct crom_src)); 597 598 /* BUS info sample */ 599 src->hdr.info_len = 4; 600 601 src->businfo.bus_name = CSR_BUS_NAME_IEEE1394; 602 603 src->businfo.irmc = 1; 604 src->businfo.cmc = 1; 605 src->businfo.isc = 1; 606 src->businfo.bmc = 1; 607 src->businfo.pmc = 0; 608 src->businfo.cyc_clk_acc = 100; 609 src->businfo.max_rec = fc->maxrec; 610 src->businfo.max_rom = MAXROM_4; 611 src->businfo.generation = 1; 612 src->businfo.link_spd = fc->speed; 613 614 src->businfo.eui64.hi = fc->eui.hi; 615 src->businfo.eui64.lo = fc->eui.lo; 616 617 STAILQ_INIT(&src->chunk_list); 618 619 fc->crom_src = src; 620 fc->crom_root = &fc->crom_src_buf->root; 621} 622 623static void 624fw_reset_crom(struct firewire_comm *fc) 625{ 626 struct crom_src_buf *buf; 627 struct crom_src *src; 628 struct crom_chunk *root; 629 630 if (fc->crom_src_buf == NULL) 631 fw_init_crom(fc); 632 633 buf = fc->crom_src_buf; 634 src = fc->crom_src; 635 root = fc->crom_root; 636 637 STAILQ_INIT(&src->chunk_list); 638 639 bzero(root, sizeof(struct crom_chunk)); 640 crom_add_chunk(src, NULL, root, 0); 641 crom_add_entry(root, CSRKEY_NCAP, 0x0083c0); /* XXX */ 642 /* private company_id */ 643 crom_add_entry(root, CSRKEY_VENDOR, CSRVAL_VENDOR_PRIVATE); 644#ifdef __DragonFly__ 645 crom_add_simple_text(src, root, &buf->vendor, "DragonFly Project"); 646 crom_add_entry(root, CSRKEY_HW, __DragonFly_cc_version); 647#else 648 crom_add_simple_text(src, root, &buf->vendor, "FreeBSD Project"); 649 crom_add_entry(root, CSRKEY_HW, __FreeBSD_version); 650#endif 651 crom_add_simple_text(src, root, &buf->hw, hostname); 652} 653 654/* 655 * Called after bus reset. 656 */ 657void 658fw_busreset(struct firewire_comm *fc) 659{ 660 struct firewire_dev_comm *fdc; 661 struct crom_src *src; 662 device_t *devlistp; 663 void *newrom; 664 int i, devcnt; 665 666 switch(fc->status){ 667 case FWBUSMGRELECT: 668 callout_stop(&fc->bmr_callout); 669 break; 670 default: 671 break; 672 } 673 fc->status = FWBUSRESET; 674 fw_reset_csr(fc); 675 fw_reset_crom(fc); 676 677 if (device_get_children(fc->bdev, &devlistp, &devcnt) == 0) { 678 for( i = 0 ; i < devcnt ; i++) 679 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 680 fdc = device_get_softc(devlistp[i]); 681 if (fdc->post_busreset != NULL) 682 fdc->post_busreset(fdc); 683 } 684 free(devlistp, M_TEMP); 685 } 686 687 newrom = malloc(CROMSIZE, M_FW, M_NOWAIT | M_ZERO); 688 src = &fc->crom_src_buf->src; 689 crom_load(src, (u_int32_t *)newrom, CROMSIZE); 690 if (bcmp(newrom, fc->config_rom, CROMSIZE) != 0) { 691 /* bump generation and reload */ 692 src->businfo.generation ++; 693 /* generation must be between 0x2 and 0xF */ 694 if (src->businfo.generation < 2) 695 src->businfo.generation ++; 696 crom_load(src, (u_int32_t *)newrom, CROMSIZE); 697 bcopy(newrom, (void *)fc->config_rom, CROMSIZE); 698 } 699 free(newrom, M_FW); 700} 701 702/* Call once after reboot */ 703void fw_init(struct firewire_comm *fc) 704{ 705 int i; 706 struct csrdir *csrd; 707#ifdef FW_VMACCESS 708 struct fw_xfer *xfer; 709 struct fw_bind *fwb; 710#endif 711 712 fc->max_asyretry = FW_MAXASYRTY; 713 714 fc->arq->queued = 0; 715 fc->ars->queued = 0; 716 fc->atq->queued = 0; 717 fc->ats->queued = 0; 718 719 fc->arq->buf = NULL; 720 fc->ars->buf = NULL; 721 fc->atq->buf = NULL; 722 fc->ats->buf = NULL; 723 724 fc->arq->flag = 0; 725 fc->ars->flag = 0; 726 fc->atq->flag = 0; 727 fc->ats->flag = 0; 728 729 STAILQ_INIT(&fc->atq->q); 730 STAILQ_INIT(&fc->ats->q); 731 732 for( i = 0 ; i < fc->nisodma ; i ++ ){ 733 fc->it[i]->queued = 0; 734 fc->ir[i]->queued = 0; 735 736 fc->it[i]->start = NULL; 737 fc->ir[i]->start = NULL; 738 739 fc->it[i]->buf = NULL; 740 fc->ir[i]->buf = NULL; 741 742 fc->it[i]->flag = FWXFERQ_STREAM; 743 fc->ir[i]->flag = FWXFERQ_STREAM; 744 745 STAILQ_INIT(&fc->it[i]->q); 746 STAILQ_INIT(&fc->ir[i]->q); 747 748 STAILQ_INIT(&fc->it[i]->binds); 749 STAILQ_INIT(&fc->ir[i]->binds); 750 } 751 752 fc->arq->maxq = FWMAXQUEUE; 753 fc->ars->maxq = FWMAXQUEUE; 754 fc->atq->maxq = FWMAXQUEUE; 755 fc->ats->maxq = FWMAXQUEUE; 756 757 for( i = 0 ; i < fc->nisodma ; i++){ 758 fc->ir[i]->maxq = FWMAXQUEUE; 759 fc->it[i]->maxq = FWMAXQUEUE; 760 } 761/* Initialize csr registers */ 762 fc->topology_map = (struct fw_topology_map *)malloc( 763 sizeof(struct fw_topology_map), 764 M_FW, M_NOWAIT | M_ZERO); 765 fc->speed_map = (struct fw_speed_map *)malloc( 766 sizeof(struct fw_speed_map), 767 M_FW, M_NOWAIT | M_ZERO); 768 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16; 769 CSRARC(fc, TOPO_MAP + 4) = 1; 770 CSRARC(fc, SPED_MAP) = 0x3f1 << 16; 771 CSRARC(fc, SPED_MAP + 4) = 1; 772 773 STAILQ_INIT(&fc->devices); 774 775/* Initialize csr ROM work space */ 776 SLIST_INIT(&fc->ongocsr); 777 SLIST_INIT(&fc->csrfree); 778 for( i = 0 ; i < FWMAXCSRDIR ; i++){ 779 csrd = (struct csrdir *) malloc(sizeof(struct csrdir), M_FW,M_NOWAIT); 780 if(csrd == NULL) break; 781 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 782 } 783 784/* Initialize Async handlers */ 785 STAILQ_INIT(&fc->binds); 786 for( i = 0 ; i < 0x40 ; i++){ 787 STAILQ_INIT(&fc->tlabels[i]); 788 } 789 790/* DV depend CSRs see blue book */ 791#if 0 792 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */ 793 CSRARC(fc, oPCR) = 0x8000007a; 794 for(i = 4 ; i < 0x7c/4 ; i+=4){ 795 CSRARC(fc, i + oPCR) = 0x8000007a; 796 } 797 798 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */ 799 CSRARC(fc, iPCR) = 0x803f0000; 800 for(i = 4 ; i < 0x7c/4 ; i+=4){ 801 CSRARC(fc, i + iPCR) = 0x0; 802 } 803#endif 804 805 fc->crom_src_buf = NULL; 806 807#ifdef FW_VMACCESS 808 xfer = fw_xfer_alloc(); 809 if(xfer == NULL) return; 810 811 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_FW, M_NOWAIT); 812 if(fwb == NULL){ 813 fw_xfer_free(xfer); 814 } 815 xfer->act.hand = fw_vmaccess; 816 xfer->fc = fc; 817 xfer->sc = NULL; 818 819 fwb->start_hi = 0x2; 820 fwb->start_lo = 0; 821 fwb->addrlen = 0xffffffff; 822 fwb->xfer = xfer; 823 fw_bindadd(fc, fwb); 824#endif 825} 826 827#define BIND_CMP(addr, fwb) (((addr) < (fwb)->start)?-1:\ 828 ((fwb)->end < (addr))?1:0) 829 830/* 831 * To lookup binded process from IEEE1394 address. 832 */ 833struct fw_bind * 834fw_bindlookup(struct firewire_comm *fc, u_int16_t dest_hi, u_int32_t dest_lo) 835{ 836 u_int64_t addr; 837 struct fw_bind *tfw; 838 839 addr = ((u_int64_t)dest_hi << 32) | dest_lo; 840 STAILQ_FOREACH(tfw, &fc->binds, fclist) 841 if (tfw->act_type != FWACT_NULL && BIND_CMP(addr, tfw) == 0) 842 return(tfw); 843 return(NULL); 844} 845 846/* 847 * To bind IEEE1394 address block to process. 848 */ 849int 850fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb) 851{ 852 struct fw_bind *tfw, *prev = NULL; 853 854 if (fwb->start > fwb->end) { 855 printf("%s: invalid range\n", __func__); 856 return EINVAL; 857 } 858 859 STAILQ_FOREACH(tfw, &fc->binds, fclist) { 860 if (fwb->end < tfw->start) 861 break; 862 prev = tfw; 863 } 864 if (prev == NULL) { 865 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 866 goto out; 867 } 868 if (prev->end < fwb->start) { 869 STAILQ_INSERT_AFTER(&fc->binds, prev, fwb, fclist); 870 goto out; 871 } 872 873 printf("%s: bind failed\n", __func__); 874 return (EBUSY); 875 876out: 877 if (fwb->act_type == FWACT_CH) 878 STAILQ_INSERT_HEAD(&fc->ir[fwb->sub]->binds, fwb, chlist); 879 return (0); 880} 881 882/* 883 * To free IEEE1394 address block. 884 */ 885int 886fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb) 887{ 888#if 0 889 struct fw_xfer *xfer, *next; 890#endif 891 struct fw_bind *tfw; 892 int s; 893 894 s = splfw(); 895 STAILQ_FOREACH(tfw, &fc->binds, fclist) 896 if (tfw == fwb) { 897 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist); 898 goto found; 899 } 900 901 printf("%s: no such bind\n", __func__); 902 splx(s); 903 return (1); 904found: 905#if 0 906 /* shall we do this? */ 907 for (xfer = STAILQ_FIRST(&fwb->xferlist); xfer != NULL; xfer = next) { 908 next = STAILQ_NEXT(xfer, link); 909 fw_xfer_free(xfer); 910 } 911 STAILQ_INIT(&fwb->xferlist); 912#endif 913 914 splx(s); 915 return 0; 916} 917 918/* 919 * To free transaction label. 920 */ 921static void 922fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer) 923{ 924 struct tlabel *tl; 925 int s = splfw(); 926 927 for( tl = STAILQ_FIRST(&fc->tlabels[xfer->tl]); tl != NULL; 928 tl = STAILQ_NEXT(tl, link)){ 929 if(tl->xfer == xfer){ 930 STAILQ_REMOVE(&fc->tlabels[xfer->tl], tl, tlabel, link); 931 free(tl, M_FW); 932 splx(s); 933 return; 934 } 935 } 936 splx(s); 937 return; 938} 939 940/* 941 * To obtain XFER structure by transaction label. 942 */ 943static struct fw_xfer * 944fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel) 945{ 946 struct fw_xfer *xfer; 947 struct tlabel *tl; 948 int s = splfw(); 949 950 for( tl = STAILQ_FIRST(&fc->tlabels[tlabel]); tl != NULL; 951 tl = STAILQ_NEXT(tl, link)){ 952 if(tl->xfer->send.hdr.mode.hdr.dst == node){ 953 xfer = tl->xfer; 954 splx(s); 955 if (firewire_debug > 2) 956 printf("fw_tl2xfer: found tl=%d\n", tlabel); 957 return(xfer); 958 } 959 } 960 if (firewire_debug > 1) 961 printf("fw_tl2xfer: not found tl=%d\n", tlabel); 962 splx(s); 963 return(NULL); 964} 965 966/* 967 * To allocate IEEE1394 XFER structure. 968 */ 969struct fw_xfer * 970fw_xfer_alloc(struct malloc_type *type) 971{ 972 struct fw_xfer *xfer; 973 974 xfer = malloc(sizeof(struct fw_xfer), type, M_NOWAIT | M_ZERO); 975 if (xfer == NULL) 976 return xfer; 977 978 xfer->malloc = type; 979 980 return xfer; 981} 982 983struct fw_xfer * 984fw_xfer_alloc_buf(struct malloc_type *type, int send_len, int recv_len) 985{ 986 struct fw_xfer *xfer; 987 988 xfer = fw_xfer_alloc(type); 989 if (xfer == NULL) 990 return(NULL); 991 xfer->send.pay_len = send_len; 992 xfer->recv.pay_len = recv_len; 993 if (send_len > 0) { 994 xfer->send.payload = malloc(send_len, type, M_NOWAIT | M_ZERO); 995 if (xfer->send.payload == NULL) { 996 fw_xfer_free(xfer); 997 return(NULL); 998 } 999 } 1000 if (recv_len > 0) { 1001 xfer->recv.payload = malloc(recv_len, type, M_NOWAIT); 1002 if (xfer->recv.payload == NULL) { 1003 if (xfer->send.payload != NULL) 1004 free(xfer->send.payload, type); 1005 fw_xfer_free(xfer); 1006 return(NULL); 1007 } 1008 } 1009 return(xfer); 1010} 1011 1012/* 1013 * IEEE1394 XFER post process. 1014 */ 1015void 1016fw_xfer_done(struct fw_xfer *xfer) 1017{ 1018 if (xfer->act.hand == NULL) { 1019 printf("act.hand == NULL\n"); 1020 return; 1021 } 1022 1023 if (xfer->fc == NULL) 1024 panic("fw_xfer_done: why xfer->fc is NULL?"); 1025 1026 xfer->act.hand(xfer); 1027} 1028 1029void 1030fw_xfer_unload(struct fw_xfer* xfer) 1031{ 1032 int s; 1033 1034 if(xfer == NULL ) return; 1035 if(xfer->state == FWXF_INQ){ 1036 printf("fw_xfer_free FWXF_INQ\n"); 1037 s = splfw(); 1038 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link); 1039 xfer->q->queued --; 1040 splx(s); 1041 } 1042 if (xfer->fc != NULL) { 1043#if 1 1044 if(xfer->state == FWXF_START) 1045 /* 1046 * This could happen if: 1047 * 1. We call fwohci_arcv() before fwohci_txd(). 1048 * 2. firewire_watch() is called. 1049 */ 1050 printf("fw_xfer_free FWXF_START\n"); 1051#endif 1052 fw_tl_free(xfer->fc, xfer); 1053 } 1054 xfer->state = FWXF_INIT; 1055 xfer->resp = 0; 1056 xfer->retry = 0; 1057} 1058/* 1059 * To free IEEE1394 XFER structure. 1060 */ 1061void 1062fw_xfer_free_buf( struct fw_xfer* xfer) 1063{ 1064 if (xfer == NULL) { 1065 printf("%s: xfer == NULL\n", __func__); 1066 return; 1067 } 1068 fw_xfer_unload(xfer); 1069 if(xfer->send.payload != NULL){ 1070 free(xfer->send.payload, xfer->malloc); 1071 } 1072 if(xfer->recv.payload != NULL){ 1073 free(xfer->recv.payload, xfer->malloc); 1074 } 1075 free(xfer, xfer->malloc); 1076} 1077 1078void 1079fw_xfer_free( struct fw_xfer* xfer) 1080{ 1081 if (xfer == NULL) { 1082 printf("%s: xfer == NULL\n", __func__); 1083 return; 1084 } 1085 fw_xfer_unload(xfer); 1086 free(xfer, xfer->malloc); 1087} 1088 1089void 1090fw_asy_callback_free(struct fw_xfer *xfer) 1091{ 1092#if 0 1093 printf("asyreq done state=%d resp=%d\n", 1094 xfer->state, xfer->resp); 1095#endif 1096 fw_xfer_free(xfer); 1097} 1098 1099/* 1100 * To configure PHY. 1101 */ 1102static void 1103fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count) 1104{ 1105 struct fw_xfer *xfer; 1106 struct fw_pkt *fp; 1107 1108 fc->status = FWBUSPHYCONF; 1109 1110 xfer = fw_xfer_alloc(M_FWXFER); 1111 if (xfer == NULL) 1112 return; 1113 xfer->fc = fc; 1114 xfer->retry_req = fw_asybusy; 1115 xfer->act.hand = fw_asy_callback_free; 1116 1117 fp = &xfer->send.hdr; 1118 fp->mode.ld[1] = 0; 1119 if (root_node >= 0) 1120 fp->mode.ld[1] |= (root_node & 0x3f) << 24 | 1 << 23; 1121 if (gap_count >= 0) 1122 fp->mode.ld[1] |= 1 << 22 | (gap_count & 0x3f) << 16; 1123 fp->mode.ld[2] = ~fp->mode.ld[1]; 1124/* XXX Dangerous, how to pass PHY packet to device driver */ 1125 fp->mode.common.tcode |= FWTCODE_PHY; 1126 1127 if (firewire_debug) 1128 printf("send phy_config root_node=%d gap_count=%d\n", 1129 root_node, gap_count); 1130 fw_asyreq(fc, -1, xfer); 1131} 1132 1133#if 0 1134/* 1135 * Dump self ID. 1136 */ 1137static void 1138fw_print_sid(u_int32_t sid) 1139{ 1140 union fw_self_id *s; 1141 s = (union fw_self_id *) &sid; 1142 printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d" 1143 " p0:%d p1:%d p2:%d i:%d m:%d\n", 1144 s->p0.phy_id, s->p0.link_active, s->p0.gap_count, 1145 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender, 1146 s->p0.power_class, s->p0.port0, s->p0.port1, 1147 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets); 1148} 1149#endif 1150 1151/* 1152 * To receive self ID. 1153 */ 1154void fw_sidrcv(struct firewire_comm* fc, u_int32_t *sid, u_int len) 1155{ 1156 u_int32_t *p; 1157 union fw_self_id *self_id; 1158 u_int i, j, node, c_port = 0, i_branch = 0; 1159 1160 fc->sid_cnt = len /(sizeof(u_int32_t) * 2); 1161 fc->status = FWBUSINIT; 1162 fc->max_node = fc->nodeid & 0x3f; 1163 CSRARC(fc, NODE_IDS) = ((u_int32_t)fc->nodeid) << 16; 1164 fc->status = FWBUSCYMELECT; 1165 fc->topology_map->crc_len = 2; 1166 fc->topology_map->generation ++; 1167 fc->topology_map->self_id_count = 0; 1168 fc->topology_map->node_count = 0; 1169 fc->speed_map->generation ++; 1170 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4; 1171 self_id = &fc->topology_map->self_id[0]; 1172 for(i = 0; i < fc->sid_cnt; i ++){ 1173 if (sid[1] != ~sid[0]) { 1174 printf("fw_sidrcv: invalid self-id packet\n"); 1175 sid += 2; 1176 continue; 1177 } 1178 *self_id = *((union fw_self_id *)sid); 1179 fc->topology_map->crc_len++; 1180 if(self_id->p0.sequel == 0){ 1181 fc->topology_map->node_count ++; 1182 c_port = 0; 1183#if 0 1184 fw_print_sid(sid[0]); 1185#endif 1186 node = self_id->p0.phy_id; 1187 if(fc->max_node < node){ 1188 fc->max_node = self_id->p0.phy_id; 1189 } 1190 /* XXX I'm not sure this is the right speed_map */ 1191 fc->speed_map->speed[node][node] 1192 = self_id->p0.phy_speed; 1193 for (j = 0; j < node; j ++) { 1194 fc->speed_map->speed[j][node] 1195 = fc->speed_map->speed[node][j] 1196 = min(fc->speed_map->speed[j][j], 1197 self_id->p0.phy_speed); 1198 } 1199 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) && 1200 (self_id->p0.link_active && self_id->p0.contender)) { 1201 fc->irm = self_id->p0.phy_id; 1202 } 1203 if(self_id->p0.port0 >= 0x2){ 1204 c_port++; 1205 } 1206 if(self_id->p0.port1 >= 0x2){ 1207 c_port++; 1208 } 1209 if(self_id->p0.port2 >= 0x2){ 1210 c_port++; 1211 } 1212 } 1213 if(c_port > 2){ 1214 i_branch += (c_port - 2); 1215 } 1216 sid += 2; 1217 self_id++; 1218 fc->topology_map->self_id_count ++; 1219 } 1220 device_printf(fc->bdev, "%d nodes", fc->max_node + 1); 1221 /* CRC */ 1222 fc->topology_map->crc = fw_crc16( 1223 (u_int32_t *)&fc->topology_map->generation, 1224 fc->topology_map->crc_len * 4); 1225 fc->speed_map->crc = fw_crc16( 1226 (u_int32_t *)&fc->speed_map->generation, 1227 fc->speed_map->crc_len * 4); 1228 /* byteswap and copy to CSR */ 1229 p = (u_int32_t *)fc->topology_map; 1230 for (i = 0; i <= fc->topology_map->crc_len; i++) 1231 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++); 1232 p = (u_int32_t *)fc->speed_map; 1233 CSRARC(fc, SPED_MAP) = htonl(*p++); 1234 CSRARC(fc, SPED_MAP + 4) = htonl(*p++); 1235 /* don't byte-swap u_int8_t array */ 1236 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4); 1237 1238 fc->max_hop = fc->max_node - i_branch; 1239 printf(", maxhop <= %d", fc->max_hop); 1240 1241 if(fc->irm == -1 ){ 1242 printf(", Not found IRM capable node"); 1243 }else{ 1244 printf(", cable IRM = %d", fc->irm); 1245 if (fc->irm == fc->nodeid) 1246 printf(" (me)"); 1247 } 1248 printf("\n"); 1249 1250 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) { 1251 if (fc->irm == fc->nodeid) { 1252 fc->status = FWBUSMGRDONE; 1253 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm); 1254 fw_bmr(fc); 1255 } else { 1256 fc->status = FWBUSMGRELECT; 1257 callout_reset(&fc->bmr_callout, hz/8, 1258 (void *)fw_try_bmr, (void *)fc); 1259 } 1260 } else 1261 fc->status = FWBUSMGRDONE; 1262 1263 callout_reset(&fc->busprobe_callout, hz/4, 1264 (void *)fw_bus_probe, (void *)fc); 1265} 1266 1267/* 1268 * To probe devices on the IEEE1394 bus. 1269 */ 1270static void 1271fw_bus_probe(struct firewire_comm *fc) 1272{ 1273 int s; 1274 struct fw_device *fwdev; 1275 1276 s = splfw(); 1277 fc->status = FWBUSEXPLORE; 1278 fc->retry_count = 0; 1279 1280 /* Invalidate all devices, just after bus reset. */ 1281 STAILQ_FOREACH(fwdev, &fc->devices, link) 1282 if (fwdev->status != FWDEVINVAL) { 1283 fwdev->status = FWDEVINVAL; 1284 fwdev->rcnt = 0; 1285 } 1286 1287 fc->ongonode = 0; 1288 fc->ongoaddr = CSRROMOFF; 1289 fc->ongodev = NULL; 1290 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1291 fw_bus_explore(fc); 1292 splx(s); 1293} 1294 1295/* 1296 * Find the self_id packet for a node, ignoring sequels. 1297 */ 1298static union fw_self_id * 1299fw_find_self_id(struct firewire_comm *fc, int node) 1300{ 1301 uint32_t i; 1302 union fw_self_id *s; 1303 1304 for (i = 0; i < fc->topology_map->self_id_count; i++) { 1305 s = &fc->topology_map->self_id[i]; 1306 if (s->p0.sequel) 1307 continue; 1308 if (s->p0.phy_id == node) 1309 return s; 1310 } 1311 return 0; 1312} 1313 1314/* 1315 * To collect device informations on the IEEE1394 bus. 1316 */ 1317static void 1318fw_bus_explore(struct firewire_comm *fc ) 1319{ 1320 int err = 0; 1321 struct fw_device *fwdev, *pfwdev, *tfwdev; 1322 u_int32_t addr; 1323 struct fw_xfer *xfer; 1324 struct fw_pkt *fp; 1325 1326 if(fc->status != FWBUSEXPLORE) 1327 return; 1328 1329loop: 1330 if(fc->ongonode == fc->nodeid) fc->ongonode++; 1331 1332 if(fc->ongonode > fc->max_node) goto done; 1333 if(fc->ongonode >= 0x3f) goto done; 1334 1335 /* check link */ 1336 /* XXX we need to check phy_id first */ 1337 if (!fw_find_self_id(fc, fc->ongonode)->p0.link_active) { 1338 if (firewire_debug) 1339 printf("node%d: link down\n", fc->ongonode); 1340 fc->ongonode++; 1341 goto loop; 1342 } 1343 1344 if(fc->ongoaddr <= CSRROMOFF && 1345 fc->ongoeui.hi == 0xffffffff && 1346 fc->ongoeui.lo == 0xffffffff ){ 1347 fc->ongoaddr = CSRROMOFF; 1348 addr = 0xf0000000 | fc->ongoaddr; 1349 }else if(fc->ongoeui.hi == 0xffffffff ){ 1350 fc->ongoaddr = CSRROMOFF + 0xc; 1351 addr = 0xf0000000 | fc->ongoaddr; 1352 }else if(fc->ongoeui.lo == 0xffffffff ){ 1353 fc->ongoaddr = CSRROMOFF + 0x10; 1354 addr = 0xf0000000 | fc->ongoaddr; 1355 }else if(fc->ongodev == NULL){ 1356 STAILQ_FOREACH(fwdev, &fc->devices, link) 1357 if (FW_EUI64_EQUAL(fwdev->eui, fc->ongoeui)) 1358 break; 1359 if(fwdev != NULL){ 1360 fwdev->dst = fc->ongonode; 1361 fwdev->status = FWDEVINIT; 1362 fc->ongodev = fwdev; 1363 fc->ongoaddr = CSRROMOFF; 1364 addr = 0xf0000000 | fc->ongoaddr; 1365 goto dorequest; 1366 } 1367 fwdev = malloc(sizeof(struct fw_device), M_FW, 1368 M_NOWAIT | M_ZERO); 1369 if(fwdev == NULL) 1370 return; 1371 fwdev->fc = fc; 1372 fwdev->rommax = 0; 1373 fwdev->dst = fc->ongonode; 1374 fwdev->eui.hi = fc->ongoeui.hi; fwdev->eui.lo = fc->ongoeui.lo; 1375 fwdev->status = FWDEVINIT; 1376 fwdev->speed = fc->speed_map->speed[fc->nodeid][fc->ongonode]; 1377 1378 pfwdev = NULL; 1379 STAILQ_FOREACH(tfwdev, &fc->devices, link) { 1380 if (tfwdev->eui.hi > fwdev->eui.hi || 1381 (tfwdev->eui.hi == fwdev->eui.hi && 1382 tfwdev->eui.lo > fwdev->eui.lo)) 1383 break; 1384 pfwdev = tfwdev; 1385 } 1386 if (pfwdev == NULL) 1387 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link); 1388 else 1389 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link); 1390 1391 device_printf(fc->bdev, "New %s device ID:%08x%08x\n", 1392 linkspeed[fwdev->speed], 1393 fc->ongoeui.hi, fc->ongoeui.lo); 1394 1395 fc->ongodev = fwdev; 1396 fc->ongoaddr = CSRROMOFF; 1397 addr = 0xf0000000 | fc->ongoaddr; 1398 }else{ 1399 addr = 0xf0000000 | fc->ongoaddr; 1400 } 1401dorequest: 1402#if 0 1403 xfer = asyreqq(fc, FWSPD_S100, 0, 0, 1404 ((FWLOCALBUS | fc->ongonode) << 16) | 0xffff , addr, 1405 fw_bus_explore_callback); 1406 if(xfer == NULL) goto done; 1407#else 1408 xfer = fw_xfer_alloc(M_FWXFER); 1409 if(xfer == NULL){ 1410 goto done; 1411 } 1412 xfer->send.spd = 0; 1413 fp = &xfer->send.hdr; 1414 fp->mode.rreqq.dest_hi = 0xffff; 1415 fp->mode.rreqq.tlrt = 0; 1416 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1417 fp->mode.rreqq.pri = 0; 1418 fp->mode.rreqq.src = 0; 1419 fp->mode.rreqq.dst = FWLOCALBUS | fc->ongonode; 1420 fp->mode.rreqq.dest_lo = addr; 1421 xfer->act.hand = fw_bus_explore_callback; 1422 1423 if (firewire_debug) 1424 printf("node%d: explore addr=0x%x\n", 1425 fc->ongonode, fc->ongoaddr); 1426 err = fw_asyreq(fc, -1, xfer); 1427 if(err){ 1428 fw_xfer_free( xfer); 1429 return; 1430 } 1431#endif 1432 return; 1433done: 1434 /* fw_attach_devs */ 1435 fc->status = FWBUSEXPDONE; 1436 if (firewire_debug) 1437 printf("bus_explore done\n"); 1438 fw_attach_dev(fc); 1439 return; 1440 1441} 1442 1443/* Portable Async. request read quad */ 1444struct fw_xfer * 1445asyreqq(struct firewire_comm *fc, u_int8_t spd, u_int8_t tl, u_int8_t rt, 1446 u_int32_t addr_hi, u_int32_t addr_lo, 1447 void (*hand) (struct fw_xfer*)) 1448{ 1449 struct fw_xfer *xfer; 1450 struct fw_pkt *fp; 1451 int err; 1452 1453 xfer = fw_xfer_alloc(M_FWXFER); 1454 if (xfer == NULL) 1455 return NULL; 1456 1457 xfer->send.spd = spd; /* XXX:min(spd, fc->spd) */ 1458 fp = &xfer->send.hdr; 1459 fp->mode.rreqq.dest_hi = addr_hi & 0xffff; 1460 if(tl & FWP_TL_VALID){ 1461 fp->mode.rreqq.tlrt = (tl & 0x3f) << 2; 1462 }else{ 1463 fp->mode.rreqq.tlrt = 0; 1464 } 1465 fp->mode.rreqq.tlrt |= rt & 0x3; 1466 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1467 fp->mode.rreqq.pri = 0; 1468 fp->mode.rreqq.src = 0; 1469 fp->mode.rreqq.dst = addr_hi >> 16; 1470 fp->mode.rreqq.dest_lo = addr_lo; 1471 xfer->act.hand = hand; 1472 1473 err = fw_asyreq(fc, -1, xfer); 1474 if(err){ 1475 fw_xfer_free( xfer); 1476 return NULL; 1477 } 1478 return xfer; 1479} 1480 1481/* 1482 * Callback for the IEEE1394 bus information collection. 1483 */ 1484static void 1485fw_bus_explore_callback(struct fw_xfer *xfer) 1486{ 1487 struct firewire_comm *fc; 1488 struct fw_pkt *sfp,*rfp; 1489 struct csrhdr *chdr; 1490 struct csrdir *csrd; 1491 struct csrreg *csrreg; 1492 u_int32_t offset; 1493 1494 1495 if(xfer == NULL) { 1496 printf("xfer == NULL\n"); 1497 return; 1498 } 1499 fc = xfer->fc; 1500 1501 if (firewire_debug) 1502 printf("node%d: callback addr=0x%x\n", 1503 fc->ongonode, fc->ongoaddr); 1504 1505 if(xfer->resp != 0){ 1506 device_printf(fc->bdev, 1507 "bus_explore node=%d addr=0x%x resp=%d retry=%d\n", 1508 fc->ongonode, fc->ongoaddr, xfer->resp, xfer->retry); 1509 if (xfer->retry < fc->max_asyretry) { 1510 fw_asystart(xfer); 1511 return; 1512 } 1513 goto errnode; 1514 } 1515 1516 sfp = &xfer->send.hdr; 1517 rfp = &xfer->recv.hdr; 1518#if 0 1519 { 1520 u_int32_t *qld; 1521 int i; 1522 qld = (u_int32_t *)xfer->recv.buf; 1523 printf("len:%d\n", xfer->recv.len); 1524 for( i = 0 ; i <= xfer->recv.len && i < 32; i+= 4){ 1525 printf("0x%08x ", rfp->mode.ld[i/4]); 1526 if((i % 16) == 15) printf("\n"); 1527 } 1528 if((i % 16) != 15) printf("\n"); 1529 } 1530#endif 1531 if(fc->ongodev == NULL){ 1532 if(sfp->mode.rreqq.dest_lo == (0xf0000000 | CSRROMOFF)){ 1533 rfp->mode.rresq.data = ntohl(rfp->mode.rresq.data); 1534 chdr = (struct csrhdr *)(&rfp->mode.rresq.data); 1535/* If CSR is minimal confinguration, more investgation is not needed. */ 1536 if(chdr->info_len == 1){ 1537 if (firewire_debug) 1538 printf("node%d: minimal config\n", 1539 fc->ongonode); 1540 goto nextnode; 1541 }else{ 1542 fc->ongoaddr = CSRROMOFF + 0xc; 1543 } 1544 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0xc))){ 1545 fc->ongoeui.hi = ntohl(rfp->mode.rresq.data); 1546 fc->ongoaddr = CSRROMOFF + 0x10; 1547 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0x10))){ 1548 fc->ongoeui.lo = ntohl(rfp->mode.rresq.data); 1549 if (fc->ongoeui.hi == 0 && fc->ongoeui.lo == 0) { 1550 if (firewire_debug) 1551 printf("node%d: eui64 is zero.\n", 1552 fc->ongonode); 1553 goto nextnode; 1554 } 1555 fc->ongoaddr = CSRROMOFF; 1556 } 1557 }else{ 1558 if (fc->ongoaddr == CSRROMOFF && 1559 fc->ongodev->csrrom[0] == ntohl(rfp->mode.rresq.data)) { 1560 fc->ongodev->status = FWDEVATTACHED; 1561 goto nextnode; 1562 } 1563 fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4] = ntohl(rfp->mode.rresq.data); 1564 if(fc->ongoaddr > fc->ongodev->rommax){ 1565 fc->ongodev->rommax = fc->ongoaddr; 1566 } 1567 csrd = SLIST_FIRST(&fc->ongocsr); 1568 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1569 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1570 offset = CSRROMOFF; 1571 }else{ 1572 chdr = (struct csrhdr *)&fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]; 1573 offset = csrd->off; 1574 } 1575 if(fc->ongoaddr > (CSRROMOFF + 0x14) && fc->ongoaddr != offset){ 1576 csrreg = (struct csrreg *)&fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4]; 1577 if( csrreg->key == 0x81 || csrreg->key == 0xd1){ 1578 csrd = SLIST_FIRST(&fc->csrfree); 1579 if(csrd == NULL){ 1580 goto nextnode; 1581 }else{ 1582 csrd->ongoaddr = fc->ongoaddr; 1583 fc->ongoaddr += csrreg->val * 4; 1584 csrd->off = fc->ongoaddr; 1585 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1586 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1587 goto nextaddr; 1588 } 1589 } 1590 } 1591 fc->ongoaddr += 4; 1592 if(((fc->ongoaddr - offset)/4 > chdr->crc_len) && 1593 (fc->ongodev->rommax < 0x414)){ 1594 if(fc->ongodev->rommax <= 0x414){ 1595 csrd = SLIST_FIRST(&fc->csrfree); 1596 if(csrd == NULL) goto nextnode; 1597 csrd->off = fc->ongoaddr; 1598 csrd->ongoaddr = fc->ongoaddr; 1599 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1600 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1601 } 1602 goto nextaddr; 1603 } 1604 1605 while(((fc->ongoaddr - offset)/4 > chdr->crc_len)){ 1606 if(csrd == NULL){ 1607 goto nextnode; 1608 }; 1609 fc->ongoaddr = csrd->ongoaddr + 4; 1610 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1611 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1612 csrd = SLIST_FIRST(&fc->ongocsr); 1613 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1614 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1615 offset = CSRROMOFF; 1616 }else{ 1617 chdr = (struct csrhdr *)&(fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]); 1618 offset = csrd->off; 1619 } 1620 } 1621 if((fc->ongoaddr - CSRROMOFF) > CSRROMSIZE){ 1622 goto nextnode; 1623 } 1624 } 1625nextaddr: 1626 fw_xfer_free( xfer); 1627 fw_bus_explore(fc); 1628 return; 1629errnode: 1630 fc->retry_count++; 1631 if (fc->ongodev != NULL) { 1632 fc->ongodev->status = FWDEVINVAL; 1633 /* Invalidate ROM */ 1634 fc->ongodev->csrrom[0] = 0; 1635 } 1636nextnode: 1637 fw_xfer_free( xfer); 1638 fc->ongonode++; 1639/* housekeeping work space */ 1640 fc->ongoaddr = CSRROMOFF; 1641 fc->ongodev = NULL; 1642 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1643 while((csrd = SLIST_FIRST(&fc->ongocsr)) != NULL){ 1644 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1645 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1646 } 1647 fw_bus_explore(fc); 1648 return; 1649} 1650 1651/* 1652 * To attach sub-devices layer onto IEEE1394 bus. 1653 */ 1654static void 1655fw_attach_dev(struct firewire_comm *fc) 1656{ 1657 struct fw_device *fwdev, *next; 1658 int i, err; 1659 device_t *devlistp; 1660 int devcnt; 1661 struct firewire_dev_comm *fdc; 1662 1663 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1664 next = STAILQ_NEXT(fwdev, link); 1665 if (fwdev->status == FWDEVINIT) { 1666 fwdev->status = FWDEVATTACHED; 1667 } else if (fwdev->status == FWDEVINVAL) { 1668 fwdev->rcnt ++; 1669 if (fwdev->rcnt > hold_count) { 1670 /* 1671 * Remove devices which have not been seen 1672 * for a while. 1673 */ 1674 STAILQ_REMOVE(&fc->devices, fwdev, fw_device, 1675 link); 1676 free(fwdev, M_FW); 1677 } 1678 } 1679 } 1680 1681 err = device_get_children(fc->bdev, &devlistp, &devcnt); 1682 if( err != 0 ) 1683 return; 1684 for( i = 0 ; i < devcnt ; i++){ 1685 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 1686 fdc = device_get_softc(devlistp[i]); 1687 if (fdc->post_explore != NULL) 1688 fdc->post_explore(fdc); 1689 } 1690 } 1691 free(devlistp, M_TEMP); 1692 1693 if (fc->retry_count > 0) { 1694 device_printf(fc->bdev, "bus_explore failed for %d nodes\n", 1695 fc->retry_count); 1696#if 0 1697 callout_reset(&fc->retry_probe_callout, hz*2, 1698 (void *)fc->ibr, (void *)fc); 1699#endif 1700 } 1701 return; 1702} 1703 1704/* 1705 * To allocate uniq transaction label. 1706 */ 1707static int 1708fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer) 1709{ 1710 u_int i; 1711 struct tlabel *tl, *tmptl; 1712 int s; 1713 static u_int32_t label = 0; 1714 1715 s = splfw(); 1716 for( i = 0 ; i < 0x40 ; i ++){ 1717 label = (label + 1) & 0x3f; 1718 for(tmptl = STAILQ_FIRST(&fc->tlabels[label]); 1719 tmptl != NULL; tmptl = STAILQ_NEXT(tmptl, link)){ 1720 if (tmptl->xfer->send.hdr.mode.hdr.dst == 1721 xfer->send.hdr.mode.hdr.dst) 1722 break; 1723 } 1724 if(tmptl == NULL) { 1725 tl = malloc(sizeof(struct tlabel),M_FW,M_NOWAIT); 1726 if (tl == NULL) { 1727 splx(s); 1728 return (-1); 1729 } 1730 tl->xfer = xfer; 1731 STAILQ_INSERT_TAIL(&fc->tlabels[label], tl, link); 1732 splx(s); 1733 if (firewire_debug > 1) 1734 printf("fw_get_tlabel: dst=%d tl=%d\n", 1735 xfer->send.hdr.mode.hdr.dst, label); 1736 return(label); 1737 } 1738 } 1739 splx(s); 1740 1741 printf("fw_get_tlabel: no free tlabel\n"); 1742 return(-1); 1743} 1744 1745static void 1746fw_rcv_copy(struct fw_rcv_buf *rb) 1747{ 1748 struct fw_pkt *pkt; 1749 u_char *p; 1750 struct tcode_info *tinfo; 1751 u_int res, i, len, plen; 1752 1753 rb->xfer->recv.spd -= rb->spd; 1754 1755 pkt = (struct fw_pkt *)rb->vec->iov_base; 1756 tinfo = &rb->fc->tcode[pkt->mode.hdr.tcode]; 1757 1758 /* Copy header */ 1759 p = (u_char *)&rb->xfer->recv.hdr; 1760 bcopy(rb->vec->iov_base, p, tinfo->hdr_len); 1761 (u_char *)rb->vec->iov_base += tinfo->hdr_len; 1762 rb->vec->iov_len -= tinfo->hdr_len; 1763 1764 /* Copy payload */ 1765 p = (u_char *)rb->xfer->recv.payload; 1766 res = rb->xfer->recv.pay_len; 1767 1768 /* special handling for RRESQ */ 1769 if (pkt->mode.hdr.tcode == FWTCODE_RRESQ && 1770 p != NULL && res >= sizeof(u_int32_t)) { 1771 *(u_int32_t *)p = pkt->mode.rresq.data; 1772 rb->xfer->recv.pay_len = sizeof(u_int32_t); 1773 return; 1774 } 1775 1776 if ((tinfo->flag & FWTI_BLOCK_ASY) == 0) 1777 return; 1778 1779 plen = pkt->mode.rresb.len; 1780 1781 for (i = 0; i < rb->nvec; i++, rb->vec++) { 1782 len = MIN(rb->vec->iov_len, plen); 1783 if (res < len) { 1784 printf("rcv buffer(%d) is %d bytes short.\n", 1785 rb->xfer->recv.pay_len, len - res); 1786 len = res; 1787 } 1788 bcopy(rb->vec->iov_base, p, len); 1789 p += len; 1790 res -= len; 1791 plen -= len; 1792 if (res == 0 || plen == 0) 1793 break; 1794 } 1795 rb->xfer->recv.pay_len -= res; 1796 1797} 1798 1799/* 1800 * Generic packet receving process. 1801 */ 1802void 1803fw_rcv(struct fw_rcv_buf *rb) 1804{ 1805 struct fw_pkt *fp, *resfp; 1806 struct fw_bind *bind; 1807 int tcode, s; 1808 int i, len, oldstate; 1809#if 0 1810 { 1811 u_int32_t *qld; 1812 int i; 1813 qld = (u_int32_t *)buf; 1814 printf("spd %d len:%d\n", spd, len); 1815 for( i = 0 ; i <= len && i < 32; i+= 4){ 1816 printf("0x%08x ", ntohl(qld[i/4])); 1817 if((i % 16) == 15) printf("\n"); 1818 } 1819 if((i % 16) != 15) printf("\n"); 1820 } 1821#endif 1822 fp = (struct fw_pkt *)rb->vec[0].iov_base; 1823 tcode = fp->mode.common.tcode; 1824 switch (tcode) { 1825 case FWTCODE_WRES: 1826 case FWTCODE_RRESQ: 1827 case FWTCODE_RRESB: 1828 case FWTCODE_LRES: 1829 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1830 fp->mode.hdr.tlrt >> 2); 1831 if(rb->xfer == NULL) { 1832 printf("fw_rcv: unknown response " 1833 "%s(%x) src=0x%x tl=0x%x rt=%d data=0x%x\n", 1834 tcode_str[tcode], tcode, 1835 fp->mode.hdr.src, 1836 fp->mode.hdr.tlrt >> 2, 1837 fp->mode.hdr.tlrt & 3, 1838 fp->mode.rresq.data); 1839#if 1 1840 printf("try ad-hoc work around!!\n"); 1841 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1842 (fp->mode.hdr.tlrt >> 2)^3); 1843 if (rb->xfer == NULL) { 1844 printf("no use...\n"); 1845 goto err; 1846 } 1847#else 1848 goto err; 1849#endif 1850 } 1851 fw_rcv_copy(rb); 1852 if (rb->xfer->recv.hdr.mode.wres.rtcode != RESP_CMP) 1853 rb->xfer->resp = EIO; 1854 else 1855 rb->xfer->resp = 0; 1856 /* make sure the packet is drained in AT queue */ 1857 oldstate = rb->xfer->state; 1858 rb->xfer->state = FWXF_RCVD; 1859 switch (oldstate) { 1860 case FWXF_SENT: 1861 fw_xfer_done(rb->xfer); 1862 break; 1863 case FWXF_START: 1864#if 0 1865 if (firewire_debug) 1866 printf("not sent yet tl=%x\n", rb->xfer->tl); 1867#endif 1868 break; 1869 default: 1870 printf("unexpected state %d\n", rb->xfer->state); 1871 } 1872 return; 1873 case FWTCODE_WREQQ: 1874 case FWTCODE_WREQB: 1875 case FWTCODE_RREQQ: 1876 case FWTCODE_RREQB: 1877 case FWTCODE_LREQ: 1878 bind = fw_bindlookup(rb->fc, fp->mode.rreqq.dest_hi, 1879 fp->mode.rreqq.dest_lo); 1880 if(bind == NULL){ 1881 printf("Unknown service addr 0x%04x:0x%08x %s(%x)" 1882#if defined(__DragonFly__) || __FreeBSD_version < 500000 1883 " src=0x%x data=%lx\n", 1884#else 1885 " src=0x%x data=%x\n", 1886#endif 1887 fp->mode.wreqq.dest_hi, fp->mode.wreqq.dest_lo, 1888 tcode_str[tcode], tcode, 1889 fp->mode.hdr.src, ntohl(fp->mode.wreqq.data)); 1890 if (rb->fc->status == FWBUSRESET) { 1891 printf("fw_rcv: cannot respond(bus reset)!\n"); 1892 goto err; 1893 } 1894 rb->xfer = fw_xfer_alloc(M_FWXFER); 1895 if(rb->xfer == NULL){ 1896 return; 1897 } 1898 rb->xfer->send.spd = rb->spd; 1899 rb->xfer->send.pay_len = 0; 1900 resfp = &rb->xfer->send.hdr; 1901 switch (tcode) { 1902 case FWTCODE_WREQQ: 1903 case FWTCODE_WREQB: 1904 resfp->mode.hdr.tcode = FWTCODE_WRES; 1905 break; 1906 case FWTCODE_RREQQ: 1907 resfp->mode.hdr.tcode = FWTCODE_RRESQ; 1908 break; 1909 case FWTCODE_RREQB: 1910 resfp->mode.hdr.tcode = FWTCODE_RRESB; 1911 break; 1912 case FWTCODE_LREQ: 1913 resfp->mode.hdr.tcode = FWTCODE_LRES; 1914 break; 1915 } 1916 resfp->mode.hdr.dst = fp->mode.hdr.src; 1917 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt; 1918 resfp->mode.hdr.pri = fp->mode.hdr.pri; 1919 resfp->mode.rresb.rtcode = RESP_ADDRESS_ERROR; 1920 resfp->mode.rresb.extcode = 0; 1921 resfp->mode.rresb.len = 0; 1922/* 1923 rb->xfer->act.hand = fw_asy_callback; 1924*/ 1925 rb->xfer->act.hand = fw_xfer_free; 1926 if(fw_asyreq(rb->fc, -1, rb->xfer)){ 1927 fw_xfer_free(rb->xfer); 1928 return; 1929 } 1930 goto err; 1931 } 1932 len = 0; 1933 for (i = 0; i < rb->nvec; i ++) 1934 len += rb->vec[i].iov_len; 1935 switch(bind->act_type){ 1936 case FWACT_XFER: 1937 /* splfw()?? */ 1938 rb->xfer = STAILQ_FIRST(&bind->xferlist); 1939 if (rb->xfer == NULL) { 1940 printf("Discard a packet for this bind.\n"); 1941 goto err; 1942 } 1943 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 1944 fw_rcv_copy(rb); 1945 rb->xfer->act.hand(rb->xfer); 1946 return; 1947 break; 1948 case FWACT_CH: 1949 if(rb->fc->ir[bind->sub]->queued >= 1950 rb->fc->ir[bind->sub]->maxq){ 1951 device_printf(rb->fc->bdev, 1952 "Discard a packet %x %d\n", 1953 bind->sub, 1954 rb->fc->ir[bind->sub]->queued); 1955 goto err; 1956 } 1957 rb->xfer = STAILQ_FIRST(&bind->xferlist); 1958 if (rb->xfer == NULL) { 1959 printf("Discard packet for this bind\n"); 1960 goto err; 1961 } 1962 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 1963 fw_rcv_copy(rb); 1964 s = splfw(); 1965 rb->fc->ir[bind->sub]->queued++; 1966 STAILQ_INSERT_TAIL(&rb->fc->ir[bind->sub]->q, 1967 rb->xfer, link); 1968 splx(s); 1969 1970 wakeup((caddr_t)rb->fc->ir[bind->sub]); 1971 1972 return; 1973 break; 1974 default: 1975 goto err; 1976 break; 1977 } 1978 break; 1979#if 0 /* shouldn't happen ?? or for GASP */ 1980 case FWTCODE_STREAM: 1981 { 1982 struct fw_xferq *xferq; 1983 1984 xferq = rb->fc->ir[sub]; 1985#if 0 1986 printf("stream rcv dma %d len %d off %d spd %d\n", 1987 sub, len, off, spd); 1988#endif 1989 if(xferq->queued >= xferq->maxq) { 1990 printf("receive queue is full\n"); 1991 goto err; 1992 } 1993 /* XXX get xfer from xfer queue, we don't need copy for 1994 per packet mode */ 1995 rb->xfer = fw_xfer_alloc_buf(M_FWXFER, 0, /* XXX */ 1996 vec[0].iov_len); 1997 if (rb->xfer == NULL) goto err; 1998 fw_rcv_copy(rb) 1999 s = splfw(); 2000 xferq->queued++; 2001 STAILQ_INSERT_TAIL(&xferq->q, rb->xfer, link); 2002 splx(s); 2003 sc = device_get_softc(rb->fc->bdev); 2004#if defined(__DragonFly__) || __FreeBSD_version < 500000 2005 if (&xferq->rsel.si_pid != 0) 2006#else 2007 if (SEL_WAITING(&xferq->rsel)) 2008#endif 2009 selwakeuppri(&xferq->rsel, FWPRI); 2010 if (xferq->flag & FWXFERQ_WAKEUP) { 2011 xferq->flag &= ~FWXFERQ_WAKEUP; 2012 wakeup((caddr_t)xferq); 2013 } 2014 if (xferq->flag & FWXFERQ_HANDLER) { 2015 xferq->hand(xferq); 2016 } 2017 return; 2018 break; 2019 } 2020#endif 2021 default: 2022 printf("fw_rcv: unknow tcode %d\n", tcode); 2023 break; 2024 } 2025err: 2026 return; 2027} 2028 2029/* 2030 * Post process for Bus Manager election process. 2031 */ 2032static void 2033fw_try_bmr_callback(struct fw_xfer *xfer) 2034{ 2035 struct firewire_comm *fc; 2036 int bmr; 2037 2038 if (xfer == NULL) 2039 return; 2040 fc = xfer->fc; 2041 if (xfer->resp != 0) 2042 goto error; 2043 if (xfer->recv.payload == NULL) 2044 goto error; 2045 if (xfer->recv.hdr.mode.lres.rtcode != FWRCODE_COMPLETE) 2046 goto error; 2047 2048 bmr = ntohl(xfer->recv.payload[0]); 2049 if (bmr == 0x3f) 2050 bmr = fc->nodeid; 2051 2052 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f); 2053 fw_xfer_free_buf(xfer); 2054 fw_bmr(fc); 2055 return; 2056 2057error: 2058 device_printf(fc->bdev, "bus manager election failed\n"); 2059 fw_xfer_free_buf(xfer); 2060} 2061 2062 2063/* 2064 * To candidate Bus Manager election process. 2065 */ 2066static void 2067fw_try_bmr(void *arg) 2068{ 2069 struct fw_xfer *xfer; 2070 struct firewire_comm *fc = (struct firewire_comm *)arg; 2071 struct fw_pkt *fp; 2072 int err = 0; 2073 2074 xfer = fw_xfer_alloc_buf(M_FWXFER, 8, 4); 2075 if(xfer == NULL){ 2076 return; 2077 } 2078 xfer->send.spd = 0; 2079 fc->status = FWBUSMGRELECT; 2080 2081 fp = &xfer->send.hdr; 2082 fp->mode.lreq.dest_hi = 0xffff; 2083 fp->mode.lreq.tlrt = 0; 2084 fp->mode.lreq.tcode = FWTCODE_LREQ; 2085 fp->mode.lreq.pri = 0; 2086 fp->mode.lreq.src = 0; 2087 fp->mode.lreq.len = 8; 2088 fp->mode.lreq.extcode = EXTCODE_CMP_SWAP; 2089 fp->mode.lreq.dst = FWLOCALBUS | fc->irm; 2090 fp->mode.lreq.dest_lo = 0xf0000000 | BUS_MGR_ID; 2091 xfer->send.payload[0] = htonl(0x3f); 2092 xfer->send.payload[1] = htonl(fc->nodeid); 2093 xfer->act.hand = fw_try_bmr_callback; 2094 2095 err = fw_asyreq(fc, -1, xfer); 2096 if(err){ 2097 fw_xfer_free_buf(xfer); 2098 return; 2099 } 2100 return; 2101} 2102 2103#ifdef FW_VMACCESS 2104/* 2105 * Software implementation for physical memory block access. 2106 * XXX:Too slow, usef for debug purpose only. 2107 */ 2108static void 2109fw_vmaccess(struct fw_xfer *xfer){ 2110 struct fw_pkt *rfp, *sfp = NULL; 2111 u_int32_t *ld = (u_int32_t *)xfer->recv.buf; 2112 2113 printf("vmaccess spd:%2x len:%03x data:%08x %08x %08x %08x\n", 2114 xfer->spd, xfer->recv.len, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 2115 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 2116 if(xfer->resp != 0){ 2117 fw_xfer_free( xfer); 2118 return; 2119 } 2120 if(xfer->recv.buf == NULL){ 2121 fw_xfer_free( xfer); 2122 return; 2123 } 2124 rfp = (struct fw_pkt *)xfer->recv.buf; 2125 switch(rfp->mode.hdr.tcode){ 2126 /* XXX need fix for 64bit arch */ 2127 case FWTCODE_WREQB: 2128 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2129 xfer->send.len = 12; 2130 sfp = (struct fw_pkt *)xfer->send.buf; 2131 bcopy(rfp->mode.wreqb.payload, 2132 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len)); 2133 sfp->mode.wres.tcode = FWTCODE_WRES; 2134 sfp->mode.wres.rtcode = 0; 2135 break; 2136 case FWTCODE_WREQQ: 2137 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2138 xfer->send.len = 12; 2139 sfp->mode.wres.tcode = FWTCODE_WRES; 2140 *((u_int32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data; 2141 sfp->mode.wres.rtcode = 0; 2142 break; 2143 case FWTCODE_RREQB: 2144 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_FW, M_NOWAIT); 2145 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len); 2146 sfp = (struct fw_pkt *)xfer->send.buf; 2147 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo), 2148 sfp->mode.rresb.payload, (u_int16_t)ntohs(rfp->mode.rreqb.len)); 2149 sfp->mode.rresb.tcode = FWTCODE_RRESB; 2150 sfp->mode.rresb.len = rfp->mode.rreqb.len; 2151 sfp->mode.rresb.rtcode = 0; 2152 sfp->mode.rresb.extcode = 0; 2153 break; 2154 case FWTCODE_RREQQ: 2155 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 2156 xfer->send.len = 16; 2157 sfp = (struct fw_pkt *)xfer->send.buf; 2158 sfp->mode.rresq.data = *(u_int32_t *)(ntohl(rfp->mode.rreqq.dest_lo)); 2159 sfp->mode.wres.tcode = FWTCODE_RRESQ; 2160 sfp->mode.rresb.rtcode = 0; 2161 break; 2162 default: 2163 fw_xfer_free( xfer); 2164 return; 2165 } 2166 sfp->mode.hdr.dst = rfp->mode.hdr.src; 2167 xfer->dst = ntohs(rfp->mode.hdr.src); 2168 xfer->act.hand = fw_xfer_free; 2169 xfer->retry_req = fw_asybusy; 2170 2171 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt; 2172 sfp->mode.hdr.pri = 0; 2173 2174 fw_asyreq(xfer->fc, -1, xfer); 2175/**/ 2176 return; 2177} 2178#endif 2179 2180/* 2181 * CRC16 check-sum for IEEE1394 register blocks. 2182 */ 2183u_int16_t 2184fw_crc16(u_int32_t *ptr, u_int32_t len){ 2185 u_int32_t i, sum, crc = 0; 2186 int shift; 2187 len = (len + 3) & ~3; 2188 for(i = 0 ; i < len ; i+= 4){ 2189 for( shift = 28 ; shift >= 0 ; shift -= 4){ 2190 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf; 2191 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum; 2192 } 2193 crc &= 0xffff; 2194 } 2195 return((u_int16_t) crc); 2196} 2197 2198static int 2199fw_bmr(struct firewire_comm *fc) 2200{ 2201 struct fw_device fwdev; 2202 union fw_self_id *self_id; 2203 int cmstr; 2204 u_int32_t quad; 2205 2206 /* Check to see if the current root node is cycle master capable */ 2207 self_id = fw_find_self_id(fc, fc->max_node); 2208 if (fc->max_node > 0) { 2209 /* XXX check cmc bit of businfo block rather than contender */ 2210 if (self_id->p0.link_active && self_id->p0.contender) 2211 cmstr = fc->max_node; 2212 else { 2213 device_printf(fc->bdev, 2214 "root node is not cycle master capable\n"); 2215 /* XXX shall we be the cycle master? */ 2216 cmstr = fc->nodeid; 2217 /* XXX need bus reset */ 2218 } 2219 } else 2220 cmstr = -1; 2221 2222 device_printf(fc->bdev, "bus manager %d ", CSRARC(fc, BUS_MGR_ID)); 2223 if(CSRARC(fc, BUS_MGR_ID) != fc->nodeid) { 2224 /* We are not the bus manager */ 2225 printf("\n"); 2226 return(0); 2227 } 2228 printf("(me)\n"); 2229 2230 /* Optimize gapcount */ 2231 if(fc->max_hop <= MAX_GAPHOP ) 2232 fw_phy_config(fc, cmstr, gap_cnt[fc->max_hop]); 2233 /* If we are the cycle master, nothing to do */ 2234 if (cmstr == fc->nodeid || cmstr == -1) 2235 return 0; 2236 /* Bus probe has not finished, make dummy fwdev for cmstr */ 2237 bzero(&fwdev, sizeof(fwdev)); 2238 fwdev.fc = fc; 2239 fwdev.dst = cmstr; 2240 fwdev.speed = 0; 2241 fwdev.maxrec = 8; /* 512 */ 2242 fwdev.status = FWDEVINIT; 2243 /* Set cmstr bit on the cycle master */ 2244 quad = htonl(1 << 8); 2245 fwmem_write_quad(&fwdev, NULL, 0/*spd*/, 2246 0xffff, 0xf0000000 | STATE_SET, &quad, fw_asy_callback_free); 2247 2248 return 0; 2249} 2250 2251static int 2252fw_modevent(module_t mode, int type, void *data) 2253{ 2254 int err = 0; 2255#if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2256 static eventhandler_tag fwdev_ehtag = NULL; 2257#endif 2258 2259 switch (type) { 2260 case MOD_LOAD: 2261#if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2262 fwdev_ehtag = EVENTHANDLER_REGISTER(dev_clone, 2263 fwdev_clone, 0, 1000); 2264#endif 2265 break; 2266 case MOD_UNLOAD: 2267#if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2268 if (fwdev_ehtag != NULL) 2269 EVENTHANDLER_DEREGISTER(dev_clone, fwdev_ehtag); 2270#endif 2271 break; 2272 case MOD_SHUTDOWN: 2273 break; 2274 } 2275 return (err); 2276} 2277 2278 2279#ifdef __DragonFly__ 2280DECLARE_DUMMY_MODULE(firewire); 2281#endif 2282DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,fw_modevent,0); 2283MODULE_VERSION(firewire, 1); 2284