firewire.c revision 169117
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 169117 2007-04-30 10:50:53Z 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/module.h> 44#include <sys/malloc.h> 45#include <sys/conf.h> 46#include <sys/sysctl.h> 47 48#if defined(__DragonFly__) || __FreeBSD_version < 500000 49#include <machine/clock.h> /* for DELAY() */ 50#endif 51 52#include <sys/bus.h> /* used by smbus and newbus */ 53#include <machine/bus.h> 54 55#ifdef __DragonFly__ 56#include "firewire.h" 57#include "firewirereg.h" 58#include "fwmem.h" 59#include "iec13213.h" 60#include "iec68113.h" 61#else 62#include <dev/firewire/firewire.h> 63#include <dev/firewire/firewirereg.h> 64#include <dev/firewire/fwmem.h> 65#include <dev/firewire/iec13213.h> 66#include <dev/firewire/iec68113.h> 67#endif 68 69struct crom_src_buf { 70 struct crom_src src; 71 struct crom_chunk root; 72 struct crom_chunk vendor; 73 struct crom_chunk hw; 74}; 75 76int firewire_debug=0, try_bmr=1, hold_count=3; 77SYSCTL_INT(_debug, OID_AUTO, firewire_debug, CTLFLAG_RW, &firewire_debug, 0, 78 "FireWire driver debug flag"); 79SYSCTL_NODE(_hw, OID_AUTO, firewire, CTLFLAG_RD, 0, "FireWire Subsystem"); 80SYSCTL_INT(_hw_firewire, OID_AUTO, try_bmr, CTLFLAG_RW, &try_bmr, 0, 81 "Try to be a bus manager"); 82SYSCTL_INT(_hw_firewire, OID_AUTO, hold_count, CTLFLAG_RW, &hold_count, 0, 83 "Number of count of bus resets for removing lost device information"); 84 85MALLOC_DEFINE(M_FW, "firewire", "FireWire"); 86MALLOC_DEFINE(M_FWXFER, "fw_xfer", "XFER/FireWire"); 87 88#define FW_MAXASYRTY 4 89 90devclass_t firewire_devclass; 91 92static void firewire_identify (driver_t *, device_t); 93static int firewire_probe (device_t); 94static int firewire_attach (device_t); 95static int firewire_detach (device_t); 96static int firewire_resume (device_t); 97#if 0 98static int firewire_shutdown (device_t); 99#endif 100static device_t firewire_add_child (device_t, int, const char *, int); 101static void fw_try_bmr (void *); 102static void fw_try_bmr_callback (struct fw_xfer *); 103static void fw_asystart (struct fw_xfer *); 104static int fw_get_tlabel (struct firewire_comm *, struct fw_xfer *); 105static void fw_bus_probe (struct firewire_comm *); 106static void fw_bus_explore (struct firewire_comm *); 107static void fw_bus_explore_callback (struct fw_xfer *); 108static void fw_attach_dev (struct firewire_comm *); 109#ifdef FW_VMACCESS 110static void fw_vmaccess (struct fw_xfer *); 111#endif 112struct fw_xfer *asyreqq (struct firewire_comm *, uint8_t, uint8_t, uint8_t, 113 uint32_t, uint32_t, void (*)(struct fw_xfer *)); 114static int fw_bmr (struct firewire_comm *); 115 116static device_method_t firewire_methods[] = { 117 /* Device interface */ 118 DEVMETHOD(device_identify, firewire_identify), 119 DEVMETHOD(device_probe, firewire_probe), 120 DEVMETHOD(device_attach, firewire_attach), 121 DEVMETHOD(device_detach, firewire_detach), 122 DEVMETHOD(device_suspend, bus_generic_suspend), 123 DEVMETHOD(device_resume, firewire_resume), 124 DEVMETHOD(device_shutdown, bus_generic_shutdown), 125 126 /* Bus interface */ 127 DEVMETHOD(bus_add_child, firewire_add_child), 128 DEVMETHOD(bus_print_child, bus_generic_print_child), 129 130 { 0, 0 } 131}; 132char *linkspeed[] = { 133 "S100", "S200", "S400", "S800", 134 "S1600", "S3200", "undef", "undef" 135}; 136 137static char *tcode_str[] = { 138 "WREQQ", "WREQB", "WRES", "undef", 139 "RREQQ", "RREQB", "RRESQ", "RRESB", 140 "CYCS", "LREQ", "STREAM", "LRES", 141 "undef", "undef", "PHY", "undef" 142}; 143 144/* IEEE-1394a Table C-2 Gap count as a function of hops*/ 145#define MAX_GAPHOP 15 146u_int gap_cnt[] = { 5, 5, 7, 8, 10, 13, 16, 18, 147 21, 24, 26, 29, 32, 35, 37, 40}; 148 149static driver_t firewire_driver = { 150 "firewire", 151 firewire_methods, 152 sizeof(struct firewire_softc), 153}; 154 155/* 156 * Lookup fwdev by node id. 157 */ 158struct fw_device * 159fw_noderesolve_nodeid(struct firewire_comm *fc, int dst) 160{ 161 struct fw_device *fwdev; 162 int s; 163 164 s = splfw(); 165 STAILQ_FOREACH(fwdev, &fc->devices, link) 166 if (fwdev->dst == dst && fwdev->status != FWDEVINVAL) 167 break; 168 splx(s); 169 170 return fwdev; 171} 172 173/* 174 * Lookup fwdev by EUI64. 175 */ 176struct fw_device * 177fw_noderesolve_eui64(struct firewire_comm *fc, struct fw_eui64 *eui) 178{ 179 struct fw_device *fwdev; 180 int s; 181 182 s = splfw(); 183 STAILQ_FOREACH(fwdev, &fc->devices, link) 184 if (FW_EUI64_EQUAL(fwdev->eui, *eui)) 185 break; 186 splx(s); 187 188 if(fwdev == NULL) return NULL; 189 if(fwdev->status == FWDEVINVAL) return NULL; 190 return fwdev; 191} 192 193/* 194 * Async. request procedure for userland application. 195 */ 196int 197fw_asyreq(struct firewire_comm *fc, int sub, struct fw_xfer *xfer) 198{ 199 int err = 0; 200 struct fw_xferq *xferq; 201 int tl = 0, len; 202 struct fw_pkt *fp; 203 int tcode; 204 struct tcode_info *info; 205 206 if(xfer == NULL) return EINVAL; 207 if(xfer->hand == NULL){ 208 printf("hand == NULL\n"); 209 return EINVAL; 210 } 211 fp = &xfer->send.hdr; 212 213 tcode = fp->mode.common.tcode & 0xf; 214 info = &fc->tcode[tcode]; 215 if (info->flag == 0) { 216 printf("invalid tcode=%x\n", tcode); 217 return EINVAL; 218 } 219 if (info->flag & FWTI_REQ) 220 xferq = fc->atq; 221 else 222 xferq = fc->ats; 223 len = info->hdr_len; 224 if (xfer->send.pay_len > MAXREC(fc->maxrec)) { 225 printf("send.pay_len > maxrec\n"); 226 return EINVAL; 227 } 228 if (info->flag & FWTI_BLOCK_STR) 229 len = fp->mode.stream.len; 230 else if (info->flag & FWTI_BLOCK_ASY) 231 len = fp->mode.rresb.len; 232 else 233 len = 0; 234 if (len != xfer->send.pay_len){ 235 printf("len(%d) != send.pay_len(%d) %s(%x)\n", 236 len, xfer->send.pay_len, tcode_str[tcode], tcode); 237 return EINVAL; 238 } 239 240 if(xferq->start == NULL){ 241 printf("xferq->start == NULL\n"); 242 return EINVAL; 243 } 244 if(!(xferq->queued < xferq->maxq)){ 245 device_printf(fc->bdev, "Discard a packet (queued=%d)\n", 246 xferq->queued); 247 return EINVAL; 248 } 249 250 if (info->flag & FWTI_TLABEL) { 251 if ((tl = fw_get_tlabel(fc, xfer)) == -1) 252 return EAGAIN; 253 fp->mode.hdr.tlrt = tl << 2; 254 } 255 256 xfer->tl = tl; 257 xfer->resp = 0; 258 xfer->fc = fc; 259 xfer->q = xferq; 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 0 /* XXX allow bus explore packets only after bus rest */ 296 if (fc->status < FWBUSEXPLORE) { 297 xfer->resp = EAGAIN; 298 xfer->state = FWXF_BUSY; 299 if (xfer->hand != NULL) 300 xfer->hand(xfer); 301 return; 302 } 303#endif 304 microtime(&xfer->tv); 305 s = splfw(); 306 xfer->state = FWXF_INQ; 307 STAILQ_INSERT_TAIL(&xfer->q->q, xfer, link); 308 xfer->q->queued ++; 309 splx(s); 310 /* XXX just queue for mbuf */ 311 if (xfer->mbuf == NULL) 312 xfer->q->start(fc); 313 return; 314} 315 316static void 317firewire_identify(driver_t *driver, device_t parent) 318{ 319 BUS_ADD_CHILD(parent, 0, "firewire", -1); 320} 321 322static int 323firewire_probe(device_t dev) 324{ 325 device_set_desc(dev, "IEEE1394(FireWire) bus"); 326 return (0); 327} 328 329static void 330firewire_xfer_timeout(struct firewire_comm *fc) 331{ 332 struct fw_xfer *xfer; 333 struct tlabel *tl; 334 struct timeval tv; 335 struct timeval split_timeout; 336 int i, s; 337 338 split_timeout.tv_sec = 0; 339 split_timeout.tv_usec = 200 * 1000; /* 200 msec */ 340 341 microtime(&tv); 342 timevalsub(&tv, &split_timeout); 343 344 s = splfw(); 345 for (i = 0; i < 0x40; i ++) { 346 while ((tl = STAILQ_FIRST(&fc->tlabels[i])) != NULL) { 347 xfer = tl->xfer; 348 if (timevalcmp(&xfer->tv, &tv, >)) 349 /* the rests are newer than this */ 350 break; 351 if (xfer->state == FWXF_START) 352 /* not sent yet */ 353 break; 354 device_printf(fc->bdev, 355 "split transaction timeout dst=0x%x tl=0x%x state=%d\n", 356 xfer->send.hdr.mode.hdr.dst, i, xfer->state); 357 xfer->resp = ETIMEDOUT; 358 fw_xfer_done(xfer); 359 } 360 } 361 splx(s); 362} 363 364#define WATCHDOC_HZ 10 365static void 366firewire_watchdog(void *arg) 367{ 368 struct firewire_comm *fc; 369 static int watchdoc_clock = 0; 370 371 fc = (struct firewire_comm *)arg; 372 373 /* 374 * At boot stage, the device interrupt is disabled and 375 * We encounter a timeout easily. To avoid this, 376 * ignore clock interrupt for a while. 377 */ 378 if (watchdoc_clock > WATCHDOC_HZ * 15) { 379 firewire_xfer_timeout(fc); 380 fc->timeout(fc); 381 } else 382 watchdoc_clock ++; 383 384 callout_reset(&fc->timeout_callout, hz / WATCHDOC_HZ, 385 (void *)firewire_watchdog, (void *)fc); 386} 387 388/* 389 * The attach routine. 390 */ 391static int 392firewire_attach(device_t dev) 393{ 394 int unit; 395 struct firewire_softc *sc = device_get_softc(dev); 396 device_t pa = device_get_parent(dev); 397 struct firewire_comm *fc; 398 399 fc = (struct firewire_comm *)device_get_softc(pa); 400 sc->fc = fc; 401 fc->status = FWBUSNOTREADY; 402 403 unit = device_get_unit(dev); 404 if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA; 405 406 fwdev_makedev(sc); 407 408 CALLOUT_INIT(&sc->fc->timeout_callout); 409 CALLOUT_INIT(&sc->fc->bmr_callout); 410 CALLOUT_INIT(&sc->fc->busprobe_callout); 411 412 callout_reset(&sc->fc->timeout_callout, hz, 413 (void *)firewire_watchdog, (void *)sc->fc); 414 415 /* Locate our children */ 416 bus_generic_probe(dev); 417 418 /* launch attachement of the added children */ 419 bus_generic_attach(dev); 420 421 /* bus_reset */ 422 fw_busreset(fc, FWBUSNOTREADY); 423 fc->ibr(fc); 424 425 return 0; 426} 427 428/* 429 * Attach it as child. 430 */ 431static device_t 432firewire_add_child(device_t dev, int order, const char *name, int unit) 433{ 434 device_t child; 435 struct firewire_softc *sc; 436 437 sc = (struct firewire_softc *)device_get_softc(dev); 438 child = device_add_child(dev, name, unit); 439 if (child) { 440 device_set_ivars(child, sc->fc); 441 device_probe_and_attach(child); 442 } 443 444 return child; 445} 446 447static int 448firewire_resume(device_t dev) 449{ 450 struct firewire_softc *sc; 451 452 sc = (struct firewire_softc *)device_get_softc(dev); 453 sc->fc->status = FWBUSNOTREADY; 454 455 bus_generic_resume(dev); 456 457 return(0); 458} 459 460/* 461 * Dettach it. 462 */ 463static int 464firewire_detach(device_t dev) 465{ 466 struct firewire_softc *sc; 467 struct csrdir *csrd, *next; 468 struct fw_device *fwdev, *fwdev_next; 469 int err; 470 471 sc = (struct firewire_softc *)device_get_softc(dev); 472 if ((err = fwdev_destroydev(sc)) != 0) 473 return err; 474 475 if ((err = bus_generic_detach(dev)) != 0) 476 return err; 477 478 callout_stop(&sc->fc->timeout_callout); 479 callout_stop(&sc->fc->bmr_callout); 480 callout_stop(&sc->fc->busprobe_callout); 481 482 /* XXX xfree_free and untimeout on all xfers */ 483 for (fwdev = STAILQ_FIRST(&sc->fc->devices); fwdev != NULL; 484 fwdev = fwdev_next) { 485 fwdev_next = STAILQ_NEXT(fwdev, link); 486 free(fwdev, M_FW); 487 } 488 for (csrd = SLIST_FIRST(&sc->fc->csrfree); csrd != NULL; csrd = next) { 489 next = SLIST_NEXT(csrd, link); 490 free(csrd, M_FW); 491 } 492 free(sc->fc->topology_map, M_FW); 493 free(sc->fc->speed_map, M_FW); 494 free(sc->fc->crom_src_buf, M_FW); 495 return(0); 496} 497#if 0 498static int 499firewire_shutdown( device_t dev ) 500{ 501 return 0; 502} 503#endif 504 505 506static void 507fw_xferq_drain(struct fw_xferq *xferq) 508{ 509 struct fw_xfer *xfer; 510 511 while ((xfer = STAILQ_FIRST(&xferq->q)) != NULL) { 512 STAILQ_REMOVE_HEAD(&xferq->q, link); 513 xferq->queued --; 514 xfer->resp = EAGAIN; 515 fw_xfer_done(xfer); 516 } 517} 518 519void 520fw_drain_txq(struct firewire_comm *fc) 521{ 522 int i; 523 524 fw_xferq_drain(fc->atq); 525 fw_xferq_drain(fc->ats); 526 for(i = 0; i < fc->nisodma; i++) 527 fw_xferq_drain(fc->it[i]); 528} 529 530static void 531fw_reset_csr(struct firewire_comm *fc) 532{ 533 int i; 534 535 CSRARC(fc, STATE_CLEAR) 536 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 537 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 538 CSRARC(fc, NODE_IDS) = 0x3f; 539 540 CSRARC(fc, TOPO_MAP + 8) = 0; 541 fc->irm = -1; 542 543 fc->max_node = -1; 544 545 for(i = 2; i < 0x100/4 - 2 ; i++){ 546 CSRARC(fc, SPED_MAP + i * 4) = 0; 547 } 548 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 549 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 550 CSRARC(fc, RESET_START) = 0; 551 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0; 552 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19; 553 CSRARC(fc, CYCLE_TIME) = 0x0; 554 CSRARC(fc, BUS_TIME) = 0x0; 555 CSRARC(fc, BUS_MGR_ID) = 0x3f; 556 CSRARC(fc, BANDWIDTH_AV) = 4915; 557 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff; 558 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff; 559 CSRARC(fc, IP_CHANNELS) = (1 << 31); 560 561 CSRARC(fc, CONF_ROM) = 0x04 << 24; 562 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */ 563 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 | 564 1 << 28 | 0xff << 16 | 0x09 << 8; 565 CSRARC(fc, CONF_ROM + 0xc) = 0; 566 567/* DV depend CSRs see blue book */ 568 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON; 569 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON; 570 571 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 ); 572 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 573} 574 575static void 576fw_init_crom(struct firewire_comm *fc) 577{ 578 struct crom_src *src; 579 580 fc->crom_src_buf = (struct crom_src_buf *) 581 malloc(sizeof(struct crom_src_buf), M_FW, M_WAITOK | M_ZERO); 582 if (fc->crom_src_buf == NULL) 583 return; 584 585 src = &fc->crom_src_buf->src; 586 bzero(src, sizeof(struct crom_src)); 587 588 /* BUS info sample */ 589 src->hdr.info_len = 4; 590 591 src->businfo.bus_name = CSR_BUS_NAME_IEEE1394; 592 593 src->businfo.irmc = 1; 594 src->businfo.cmc = 1; 595 src->businfo.isc = 1; 596 src->businfo.bmc = 1; 597 src->businfo.pmc = 0; 598 src->businfo.cyc_clk_acc = 100; 599 src->businfo.max_rec = fc->maxrec; 600 src->businfo.max_rom = MAXROM_4; 601 src->businfo.generation = 1; 602 src->businfo.link_spd = fc->speed; 603 604 src->businfo.eui64.hi = fc->eui.hi; 605 src->businfo.eui64.lo = fc->eui.lo; 606 607 STAILQ_INIT(&src->chunk_list); 608 609 fc->crom_src = src; 610 fc->crom_root = &fc->crom_src_buf->root; 611} 612 613static void 614fw_reset_crom(struct firewire_comm *fc) 615{ 616 struct crom_src_buf *buf; 617 struct crom_src *src; 618 struct crom_chunk *root; 619 620 if (fc->crom_src_buf == NULL) 621 fw_init_crom(fc); 622 623 buf = fc->crom_src_buf; 624 src = fc->crom_src; 625 root = fc->crom_root; 626 627 STAILQ_INIT(&src->chunk_list); 628 629 bzero(root, sizeof(struct crom_chunk)); 630 crom_add_chunk(src, NULL, root, 0); 631 crom_add_entry(root, CSRKEY_NCAP, 0x0083c0); /* XXX */ 632 /* private company_id */ 633 crom_add_entry(root, CSRKEY_VENDOR, CSRVAL_VENDOR_PRIVATE); 634#ifdef __DragonFly__ 635 crom_add_simple_text(src, root, &buf->vendor, "DragonFly Project"); 636 crom_add_entry(root, CSRKEY_HW, __DragonFly_cc_version); 637#else 638 crom_add_simple_text(src, root, &buf->vendor, "FreeBSD Project"); 639 crom_add_entry(root, CSRKEY_HW, __FreeBSD_version); 640#endif 641 crom_add_simple_text(src, root, &buf->hw, hostname); 642} 643 644/* 645 * Called after bus reset. 646 */ 647void 648fw_busreset(struct firewire_comm *fc, uint32_t new_status) 649{ 650 struct firewire_dev_comm *fdc; 651 struct crom_src *src; 652 device_t *devlistp; 653 void *newrom; 654 int i, devcnt; 655 656 switch(fc->status){ 657 case FWBUSMGRELECT: 658 callout_stop(&fc->bmr_callout); 659 break; 660 default: 661 break; 662 } 663 fc->status = new_status; 664 fw_reset_csr(fc); 665 fw_reset_crom(fc); 666 667 if (device_get_children(fc->bdev, &devlistp, &devcnt) == 0) { 668 for( i = 0 ; i < devcnt ; i++) 669 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 670 fdc = device_get_softc(devlistp[i]); 671 if (fdc->post_busreset != NULL) 672 fdc->post_busreset(fdc); 673 } 674 free(devlistp, M_TEMP); 675 } 676 677 newrom = malloc(CROMSIZE, M_FW, M_NOWAIT | M_ZERO); 678 src = &fc->crom_src_buf->src; 679 crom_load(src, (uint32_t *)newrom, CROMSIZE); 680 if (bcmp(newrom, fc->config_rom, CROMSIZE) != 0) { 681 /* bump generation and reload */ 682 src->businfo.generation ++; 683 /* generation must be between 0x2 and 0xF */ 684 if (src->businfo.generation < 2) 685 src->businfo.generation ++; 686 crom_load(src, (uint32_t *)newrom, CROMSIZE); 687 bcopy(newrom, (void *)fc->config_rom, CROMSIZE); 688 } 689 free(newrom, M_FW); 690} 691 692/* Call once after reboot */ 693void fw_init(struct firewire_comm *fc) 694{ 695 int i; 696 struct csrdir *csrd; 697#ifdef FW_VMACCESS 698 struct fw_xfer *xfer; 699 struct fw_bind *fwb; 700#endif 701 702 fc->arq->queued = 0; 703 fc->ars->queued = 0; 704 fc->atq->queued = 0; 705 fc->ats->queued = 0; 706 707 fc->arq->buf = NULL; 708 fc->ars->buf = NULL; 709 fc->atq->buf = NULL; 710 fc->ats->buf = NULL; 711 712 fc->arq->flag = 0; 713 fc->ars->flag = 0; 714 fc->atq->flag = 0; 715 fc->ats->flag = 0; 716 717 STAILQ_INIT(&fc->atq->q); 718 STAILQ_INIT(&fc->ats->q); 719 720 for( i = 0 ; i < fc->nisodma ; i ++ ){ 721 fc->it[i]->queued = 0; 722 fc->ir[i]->queued = 0; 723 724 fc->it[i]->start = NULL; 725 fc->ir[i]->start = NULL; 726 727 fc->it[i]->buf = NULL; 728 fc->ir[i]->buf = NULL; 729 730 fc->it[i]->flag = FWXFERQ_STREAM; 731 fc->ir[i]->flag = FWXFERQ_STREAM; 732 733 STAILQ_INIT(&fc->it[i]->q); 734 STAILQ_INIT(&fc->ir[i]->q); 735 736 STAILQ_INIT(&fc->it[i]->binds); 737 STAILQ_INIT(&fc->ir[i]->binds); 738 } 739 740 fc->arq->maxq = FWMAXQUEUE; 741 fc->ars->maxq = FWMAXQUEUE; 742 fc->atq->maxq = FWMAXQUEUE; 743 fc->ats->maxq = FWMAXQUEUE; 744 745 for( i = 0 ; i < fc->nisodma ; i++){ 746 fc->ir[i]->maxq = FWMAXQUEUE; 747 fc->it[i]->maxq = FWMAXQUEUE; 748 } 749/* Initialize csr registers */ 750 fc->topology_map = (struct fw_topology_map *)malloc( 751 sizeof(struct fw_topology_map), 752 M_FW, M_NOWAIT | M_ZERO); 753 fc->speed_map = (struct fw_speed_map *)malloc( 754 sizeof(struct fw_speed_map), 755 M_FW, M_NOWAIT | M_ZERO); 756 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16; 757 CSRARC(fc, TOPO_MAP + 4) = 1; 758 CSRARC(fc, SPED_MAP) = 0x3f1 << 16; 759 CSRARC(fc, SPED_MAP + 4) = 1; 760 761 STAILQ_INIT(&fc->devices); 762 763/* Initialize csr ROM work space */ 764 SLIST_INIT(&fc->ongocsr); 765 SLIST_INIT(&fc->csrfree); 766 for( i = 0 ; i < FWMAXCSRDIR ; i++){ 767 csrd = (struct csrdir *) malloc(sizeof(struct csrdir), M_FW,M_NOWAIT); 768 if(csrd == NULL) break; 769 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 770 } 771 772/* Initialize Async handlers */ 773 STAILQ_INIT(&fc->binds); 774 for( i = 0 ; i < 0x40 ; i++){ 775 STAILQ_INIT(&fc->tlabels[i]); 776 } 777 778/* DV depend CSRs see blue book */ 779#if 0 780 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */ 781 CSRARC(fc, oPCR) = 0x8000007a; 782 for(i = 4 ; i < 0x7c/4 ; i+=4){ 783 CSRARC(fc, i + oPCR) = 0x8000007a; 784 } 785 786 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */ 787 CSRARC(fc, iPCR) = 0x803f0000; 788 for(i = 4 ; i < 0x7c/4 ; i+=4){ 789 CSRARC(fc, i + iPCR) = 0x0; 790 } 791#endif 792 793 fc->crom_src_buf = NULL; 794 795#ifdef FW_VMACCESS 796 xfer = fw_xfer_alloc(); 797 if(xfer == NULL) return; 798 799 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_FW, M_NOWAIT); 800 if(fwb == NULL){ 801 fw_xfer_free(xfer); 802 return; 803 } 804 xfer->hand = fw_vmaccess; 805 xfer->fc = fc; 806 xfer->sc = NULL; 807 808 fwb->start_hi = 0x2; 809 fwb->start_lo = 0; 810 fwb->addrlen = 0xffffffff; 811 fwb->xfer = xfer; 812 fw_bindadd(fc, fwb); 813#endif 814} 815 816#define BIND_CMP(addr, fwb) (((addr) < (fwb)->start)?-1:\ 817 ((fwb)->end < (addr))?1:0) 818 819/* 820 * To lookup bound process from IEEE1394 address. 821 */ 822struct fw_bind * 823fw_bindlookup(struct firewire_comm *fc, uint16_t dest_hi, uint32_t dest_lo) 824{ 825 u_int64_t addr; 826 struct fw_bind *tfw; 827 828 addr = ((u_int64_t)dest_hi << 32) | dest_lo; 829 STAILQ_FOREACH(tfw, &fc->binds, fclist) 830 if (tfw->act_type != FWACT_NULL && BIND_CMP(addr, tfw) == 0) 831 return(tfw); 832 return(NULL); 833} 834 835/* 836 * To bind IEEE1394 address block to process. 837 */ 838int 839fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb) 840{ 841 struct fw_bind *tfw, *prev = NULL; 842 843 if (fwb->start > fwb->end) { 844 printf("%s: invalid range\n", __func__); 845 return EINVAL; 846 } 847 848 STAILQ_FOREACH(tfw, &fc->binds, fclist) { 849 if (fwb->end < tfw->start) 850 break; 851 prev = tfw; 852 } 853 if (prev == NULL) { 854 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 855 goto out; 856 } 857 if (prev->end < fwb->start) { 858 STAILQ_INSERT_AFTER(&fc->binds, prev, fwb, fclist); 859 goto out; 860 } 861 862 printf("%s: bind failed\n", __func__); 863 return (EBUSY); 864 865out: 866 if (fwb->act_type == FWACT_CH) 867 STAILQ_INSERT_HEAD(&fc->ir[fwb->sub]->binds, fwb, chlist); 868 return (0); 869} 870 871/* 872 * To free IEEE1394 address block. 873 */ 874int 875fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb) 876{ 877#if 0 878 struct fw_xfer *xfer, *next; 879#endif 880 struct fw_bind *tfw; 881 int s; 882 883 s = splfw(); 884 STAILQ_FOREACH(tfw, &fc->binds, fclist) 885 if (tfw == fwb) { 886 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist); 887 goto found; 888 } 889 890 printf("%s: no such binding\n", __func__); 891 splx(s); 892 return (1); 893found: 894#if 0 895 /* shall we do this? */ 896 for (xfer = STAILQ_FIRST(&fwb->xferlist); xfer != NULL; xfer = next) { 897 next = STAILQ_NEXT(xfer, link); 898 fw_xfer_free(xfer); 899 } 900 STAILQ_INIT(&fwb->xferlist); 901#endif 902 903 splx(s); 904 return 0; 905} 906 907/* 908 * To free transaction label. 909 */ 910static void 911fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer) 912{ 913 struct tlabel *tl; 914 int s = splfw(); 915 916 for( tl = STAILQ_FIRST(&fc->tlabels[xfer->tl]); tl != NULL; 917 tl = STAILQ_NEXT(tl, link)){ 918 if(tl->xfer == xfer){ 919 STAILQ_REMOVE(&fc->tlabels[xfer->tl], tl, tlabel, link); 920 free(tl, M_FW); 921 splx(s); 922 return; 923 } 924 } 925 splx(s); 926 return; 927} 928 929/* 930 * To obtain XFER structure by transaction label. 931 */ 932static struct fw_xfer * 933fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel) 934{ 935 struct fw_xfer *xfer; 936 struct tlabel *tl; 937 int s = splfw(); 938 939 for( tl = STAILQ_FIRST(&fc->tlabels[tlabel]); tl != NULL; 940 tl = STAILQ_NEXT(tl, link)){ 941 if(tl->xfer->send.hdr.mode.hdr.dst == node){ 942 xfer = tl->xfer; 943 splx(s); 944 if (firewire_debug > 2) 945 printf("fw_tl2xfer: found tl=%d\n", tlabel); 946 return(xfer); 947 } 948 } 949 if (firewire_debug > 1) 950 printf("fw_tl2xfer: not found tl=%d\n", tlabel); 951 splx(s); 952 return(NULL); 953} 954 955/* 956 * To allocate IEEE1394 XFER structure. 957 */ 958struct fw_xfer * 959fw_xfer_alloc(struct malloc_type *type) 960{ 961 struct fw_xfer *xfer; 962 963 xfer = malloc(sizeof(struct fw_xfer), type, M_NOWAIT | M_ZERO); 964 if (xfer == NULL) 965 return xfer; 966 967 xfer->malloc = type; 968 969 return xfer; 970} 971 972struct fw_xfer * 973fw_xfer_alloc_buf(struct malloc_type *type, int send_len, int recv_len) 974{ 975 struct fw_xfer *xfer; 976 977 xfer = fw_xfer_alloc(type); 978 if (xfer == NULL) 979 return(NULL); 980 xfer->send.pay_len = send_len; 981 xfer->recv.pay_len = recv_len; 982 if (send_len > 0) { 983 xfer->send.payload = malloc(send_len, type, M_NOWAIT | M_ZERO); 984 if (xfer->send.payload == NULL) { 985 fw_xfer_free(xfer); 986 return(NULL); 987 } 988 } 989 if (recv_len > 0) { 990 xfer->recv.payload = malloc(recv_len, type, M_NOWAIT); 991 if (xfer->recv.payload == NULL) { 992 if (xfer->send.payload != NULL) 993 free(xfer->send.payload, type); 994 fw_xfer_free(xfer); 995 return(NULL); 996 } 997 } 998 return(xfer); 999} 1000 1001/* 1002 * IEEE1394 XFER post process. 1003 */ 1004void 1005fw_xfer_done(struct fw_xfer *xfer) 1006{ 1007 if (xfer->hand == NULL) { 1008 printf("hand == NULL\n"); 1009 return; 1010 } 1011 1012 if (xfer->fc == NULL) 1013 panic("fw_xfer_done: why xfer->fc is NULL?"); 1014 1015 fw_tl_free(xfer->fc, xfer); 1016 xfer->hand(xfer); 1017} 1018 1019void 1020fw_xfer_unload(struct fw_xfer* xfer) 1021{ 1022 int s; 1023 1024 if(xfer == NULL ) return; 1025 if(xfer->state == FWXF_INQ){ 1026 printf("fw_xfer_free FWXF_INQ\n"); 1027 s = splfw(); 1028 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link); 1029 xfer->q->queued --; 1030 splx(s); 1031 } 1032 if (xfer->fc != NULL) { 1033#if 1 1034 if(xfer->state == FWXF_START) 1035 /* 1036 * This could happen if: 1037 * 1. We call fwohci_arcv() before fwohci_txd(). 1038 * 2. firewire_watch() is called. 1039 */ 1040 printf("fw_xfer_free FWXF_START\n"); 1041#endif 1042 } 1043 xfer->state = FWXF_INIT; 1044 xfer->resp = 0; 1045} 1046/* 1047 * To free IEEE1394 XFER structure. 1048 */ 1049void 1050fw_xfer_free_buf( struct fw_xfer* xfer) 1051{ 1052 if (xfer == NULL) { 1053 printf("%s: xfer == NULL\n", __func__); 1054 return; 1055 } 1056 fw_xfer_unload(xfer); 1057 if(xfer->send.payload != NULL){ 1058 free(xfer->send.payload, xfer->malloc); 1059 } 1060 if(xfer->recv.payload != NULL){ 1061 free(xfer->recv.payload, xfer->malloc); 1062 } 1063 free(xfer, xfer->malloc); 1064} 1065 1066void 1067fw_xfer_free( struct fw_xfer* xfer) 1068{ 1069 if (xfer == NULL) { 1070 printf("%s: xfer == NULL\n", __func__); 1071 return; 1072 } 1073 fw_xfer_unload(xfer); 1074 free(xfer, xfer->malloc); 1075} 1076 1077void 1078fw_asy_callback_free(struct fw_xfer *xfer) 1079{ 1080#if 0 1081 printf("asyreq done state=%d resp=%d\n", 1082 xfer->state, xfer->resp); 1083#endif 1084 fw_xfer_free(xfer); 1085} 1086 1087/* 1088 * To configure PHY. 1089 */ 1090static void 1091fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count) 1092{ 1093 struct fw_xfer *xfer; 1094 struct fw_pkt *fp; 1095 1096 fc->status = FWBUSPHYCONF; 1097 1098 xfer = fw_xfer_alloc(M_FWXFER); 1099 if (xfer == NULL) 1100 return; 1101 xfer->fc = fc; 1102 xfer->hand = fw_asy_callback_free; 1103 1104 fp = &xfer->send.hdr; 1105 fp->mode.ld[1] = 0; 1106 if (root_node >= 0) 1107 fp->mode.ld[1] |= (root_node & 0x3f) << 24 | 1 << 23; 1108 if (gap_count >= 0) 1109 fp->mode.ld[1] |= 1 << 22 | (gap_count & 0x3f) << 16; 1110 fp->mode.ld[2] = ~fp->mode.ld[1]; 1111/* XXX Dangerous, how to pass PHY packet to device driver */ 1112 fp->mode.common.tcode |= FWTCODE_PHY; 1113 1114 if (firewire_debug) 1115 printf("send phy_config root_node=%d gap_count=%d\n", 1116 root_node, gap_count); 1117 fw_asyreq(fc, -1, xfer); 1118} 1119 1120#if 0 1121/* 1122 * Dump self ID. 1123 */ 1124static void 1125fw_print_sid(uint32_t sid) 1126{ 1127 union fw_self_id *s; 1128 s = (union fw_self_id *) &sid; 1129 printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d" 1130 " p0:%d p1:%d p2:%d i:%d m:%d\n", 1131 s->p0.phy_id, s->p0.link_active, s->p0.gap_count, 1132 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender, 1133 s->p0.power_class, s->p0.port0, s->p0.port1, 1134 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets); 1135} 1136#endif 1137 1138/* 1139 * To receive self ID. 1140 */ 1141void fw_sidrcv(struct firewire_comm* fc, uint32_t *sid, u_int len) 1142{ 1143 uint32_t *p; 1144 union fw_self_id *self_id; 1145 u_int i, j, node, c_port = 0, i_branch = 0; 1146 1147 fc->sid_cnt = len /(sizeof(uint32_t) * 2); 1148 fc->status = FWBUSINIT; 1149 fc->max_node = fc->nodeid & 0x3f; 1150 CSRARC(fc, NODE_IDS) = ((uint32_t)fc->nodeid) << 16; 1151 fc->status = FWBUSCYMELECT; 1152 fc->topology_map->crc_len = 2; 1153 fc->topology_map->generation ++; 1154 fc->topology_map->self_id_count = 0; 1155 fc->topology_map->node_count = 0; 1156 fc->speed_map->generation ++; 1157 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4; 1158 self_id = &fc->topology_map->self_id[0]; 1159 for(i = 0; i < fc->sid_cnt; i ++){ 1160 if (sid[1] != ~sid[0]) { 1161 printf("fw_sidrcv: invalid self-id packet\n"); 1162 sid += 2; 1163 continue; 1164 } 1165 *self_id = *((union fw_self_id *)sid); 1166 fc->topology_map->crc_len++; 1167 if(self_id->p0.sequel == 0){ 1168 fc->topology_map->node_count ++; 1169 c_port = 0; 1170#if 0 1171 fw_print_sid(sid[0]); 1172#endif 1173 node = self_id->p0.phy_id; 1174 if(fc->max_node < node){ 1175 fc->max_node = self_id->p0.phy_id; 1176 } 1177 /* XXX I'm not sure this is the right speed_map */ 1178 fc->speed_map->speed[node][node] 1179 = self_id->p0.phy_speed; 1180 for (j = 0; j < node; j ++) { 1181 fc->speed_map->speed[j][node] 1182 = fc->speed_map->speed[node][j] 1183 = min(fc->speed_map->speed[j][j], 1184 self_id->p0.phy_speed); 1185 } 1186 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) && 1187 (self_id->p0.link_active && self_id->p0.contender)) { 1188 fc->irm = self_id->p0.phy_id; 1189 } 1190 if(self_id->p0.port0 >= 0x2){ 1191 c_port++; 1192 } 1193 if(self_id->p0.port1 >= 0x2){ 1194 c_port++; 1195 } 1196 if(self_id->p0.port2 >= 0x2){ 1197 c_port++; 1198 } 1199 } 1200 if(c_port > 2){ 1201 i_branch += (c_port - 2); 1202 } 1203 sid += 2; 1204 self_id++; 1205 fc->topology_map->self_id_count ++; 1206 } 1207 device_printf(fc->bdev, "%d nodes", fc->max_node + 1); 1208 /* CRC */ 1209 fc->topology_map->crc = fw_crc16( 1210 (uint32_t *)&fc->topology_map->generation, 1211 fc->topology_map->crc_len * 4); 1212 fc->speed_map->crc = fw_crc16( 1213 (uint32_t *)&fc->speed_map->generation, 1214 fc->speed_map->crc_len * 4); 1215 /* byteswap and copy to CSR */ 1216 p = (uint32_t *)fc->topology_map; 1217 for (i = 0; i <= fc->topology_map->crc_len; i++) 1218 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++); 1219 p = (uint32_t *)fc->speed_map; 1220 CSRARC(fc, SPED_MAP) = htonl(*p++); 1221 CSRARC(fc, SPED_MAP + 4) = htonl(*p++); 1222 /* don't byte-swap uint8_t array */ 1223 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4); 1224 1225 fc->max_hop = fc->max_node - i_branch; 1226 printf(", maxhop <= %d", fc->max_hop); 1227 1228 if(fc->irm == -1 ){ 1229 printf(", Not found IRM capable node"); 1230 }else{ 1231 printf(", cable IRM = %d", fc->irm); 1232 if (fc->irm == fc->nodeid) 1233 printf(" (me)"); 1234 } 1235 printf("\n"); 1236 1237 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) { 1238 if (fc->irm == fc->nodeid) { 1239 fc->status = FWBUSMGRDONE; 1240 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm); 1241 fw_bmr(fc); 1242 } else { 1243 fc->status = FWBUSMGRELECT; 1244 callout_reset(&fc->bmr_callout, hz/8, 1245 (void *)fw_try_bmr, (void *)fc); 1246 } 1247 } else 1248 fc->status = FWBUSMGRDONE; 1249 1250 callout_reset(&fc->busprobe_callout, hz/4, 1251 (void *)fw_bus_probe, (void *)fc); 1252} 1253 1254/* 1255 * To probe devices on the IEEE1394 bus. 1256 */ 1257static void 1258fw_bus_probe(struct firewire_comm *fc) 1259{ 1260 int s; 1261 struct fw_device *fwdev; 1262 1263 s = splfw(); 1264 fc->status = FWBUSEXPLORE; 1265 1266 /* Invalidate all devices, just after bus reset. */ 1267 STAILQ_FOREACH(fwdev, &fc->devices, link) 1268 if (fwdev->status != FWDEVINVAL) { 1269 fwdev->status = FWDEVINVAL; 1270 fwdev->rcnt = 0; 1271 } 1272 1273 fc->ongonode = 0; 1274 fc->ongoaddr = CSRROMOFF; 1275 fc->ongodev = NULL; 1276 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1277 fw_bus_explore(fc); 1278 splx(s); 1279} 1280 1281/* 1282 * Find the self_id packet for a node, ignoring sequels. 1283 */ 1284static union fw_self_id * 1285fw_find_self_id(struct firewire_comm *fc, int node) 1286{ 1287 uint32_t i; 1288 union fw_self_id *s; 1289 1290 for (i = 0; i < fc->topology_map->self_id_count; i++) { 1291 s = &fc->topology_map->self_id[i]; 1292 if (s->p0.sequel) 1293 continue; 1294 if (s->p0.phy_id == node) 1295 return s; 1296 } 1297 return 0; 1298} 1299 1300/* 1301 * To collect device informations on the IEEE1394 bus. 1302 */ 1303static void 1304fw_bus_explore(struct firewire_comm *fc ) 1305{ 1306 int err = 0; 1307 struct fw_device *fwdev, *pfwdev, *tfwdev; 1308 uint32_t addr; 1309 struct fw_xfer *xfer; 1310 struct fw_pkt *fp; 1311 union fw_self_id *fwsid; 1312 1313 if(fc->status != FWBUSEXPLORE) 1314 return; 1315 1316loop: 1317 if(fc->ongonode == fc->nodeid) fc->ongonode++; 1318 1319 if(fc->ongonode > fc->max_node) goto done; 1320 if(fc->ongonode >= 0x3f) goto done; 1321 1322 /* check link */ 1323 /* XXX we need to check phy_id first */ 1324 fwsid = fw_find_self_id(fc, fc->ongonode); 1325 if (!fwsid || !fwsid->p0.link_active) { 1326 if (firewire_debug) 1327 printf("node%d: link down\n", fc->ongonode); 1328 fc->ongonode++; 1329 goto loop; 1330 } 1331 1332 if(fc->ongoaddr <= CSRROMOFF && 1333 fc->ongoeui.hi == 0xffffffff && 1334 fc->ongoeui.lo == 0xffffffff ){ 1335 fc->ongoaddr = CSRROMOFF; 1336 addr = 0xf0000000 | fc->ongoaddr; 1337 }else if(fc->ongoeui.hi == 0xffffffff ){ 1338 fc->ongoaddr = CSRROMOFF + 0xc; 1339 addr = 0xf0000000 | fc->ongoaddr; 1340 }else if(fc->ongoeui.lo == 0xffffffff ){ 1341 fc->ongoaddr = CSRROMOFF + 0x10; 1342 addr = 0xf0000000 | fc->ongoaddr; 1343 }else if(fc->ongodev == NULL){ 1344 STAILQ_FOREACH(fwdev, &fc->devices, link) 1345 if (FW_EUI64_EQUAL(fwdev->eui, fc->ongoeui)) 1346 break; 1347 if(fwdev != NULL){ 1348 fwdev->dst = fc->ongonode; 1349 fwdev->status = FWDEVINIT; 1350 fc->ongodev = fwdev; 1351 fc->ongoaddr = CSRROMOFF; 1352 addr = 0xf0000000 | fc->ongoaddr; 1353 goto dorequest; 1354 } 1355 fwdev = malloc(sizeof(struct fw_device), M_FW, 1356 M_NOWAIT | M_ZERO); 1357 if(fwdev == NULL) 1358 return; 1359 fwdev->fc = fc; 1360 fwdev->rommax = 0; 1361 fwdev->dst = fc->ongonode; 1362 fwdev->eui.hi = fc->ongoeui.hi; fwdev->eui.lo = fc->ongoeui.lo; 1363 fwdev->status = FWDEVINIT; 1364 fwdev->speed = fc->speed_map->speed[fc->nodeid][fc->ongonode]; 1365 1366 pfwdev = NULL; 1367 STAILQ_FOREACH(tfwdev, &fc->devices, link) { 1368 if (tfwdev->eui.hi > fwdev->eui.hi || 1369 (tfwdev->eui.hi == fwdev->eui.hi && 1370 tfwdev->eui.lo > fwdev->eui.lo)) 1371 break; 1372 pfwdev = tfwdev; 1373 } 1374 if (pfwdev == NULL) 1375 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link); 1376 else 1377 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link); 1378 1379 device_printf(fc->bdev, "New %s device ID:%08x%08x\n", 1380 linkspeed[fwdev->speed], 1381 fc->ongoeui.hi, fc->ongoeui.lo); 1382 1383 fc->ongodev = fwdev; 1384 fc->ongoaddr = CSRROMOFF; 1385 addr = 0xf0000000 | fc->ongoaddr; 1386 }else{ 1387 addr = 0xf0000000 | fc->ongoaddr; 1388 } 1389dorequest: 1390#if 0 1391 xfer = asyreqq(fc, FWSPD_S100, 0, 0, 1392 ((FWLOCALBUS | fc->ongonode) << 16) | 0xffff , addr, 1393 fw_bus_explore_callback); 1394 if(xfer == NULL) goto done; 1395#else 1396 xfer = fw_xfer_alloc(M_FWXFER); 1397 if(xfer == NULL){ 1398 goto done; 1399 } 1400 xfer->send.spd = 0; 1401 fp = &xfer->send.hdr; 1402 fp->mode.rreqq.dest_hi = 0xffff; 1403 fp->mode.rreqq.tlrt = 0; 1404 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1405 fp->mode.rreqq.pri = 0; 1406 fp->mode.rreqq.src = 0; 1407 fp->mode.rreqq.dst = FWLOCALBUS | fc->ongonode; 1408 fp->mode.rreqq.dest_lo = addr; 1409 xfer->hand = fw_bus_explore_callback; 1410 1411 if (firewire_debug) 1412 printf("node%d: explore addr=0x%x\n", 1413 fc->ongonode, fc->ongoaddr); 1414 err = fw_asyreq(fc, -1, xfer); 1415 if(err){ 1416 fw_xfer_free( xfer); 1417 return; 1418 } 1419#endif 1420 return; 1421done: 1422 /* fw_attach_devs */ 1423 fc->status = FWBUSEXPDONE; 1424 if (firewire_debug) 1425 printf("bus_explore done\n"); 1426 fw_attach_dev(fc); 1427 return; 1428 1429} 1430 1431/* Portable Async. request read quad */ 1432struct fw_xfer * 1433asyreqq(struct firewire_comm *fc, uint8_t spd, uint8_t tl, uint8_t rt, 1434 uint32_t addr_hi, uint32_t addr_lo, 1435 void (*hand) (struct fw_xfer*)) 1436{ 1437 struct fw_xfer *xfer; 1438 struct fw_pkt *fp; 1439 int err; 1440 1441 xfer = fw_xfer_alloc(M_FWXFER); 1442 if (xfer == NULL) 1443 return NULL; 1444 1445 xfer->send.spd = spd; /* XXX:min(spd, fc->spd) */ 1446 fp = &xfer->send.hdr; 1447 fp->mode.rreqq.dest_hi = addr_hi & 0xffff; 1448 if(tl & FWP_TL_VALID){ 1449 fp->mode.rreqq.tlrt = (tl & 0x3f) << 2; 1450 }else{ 1451 fp->mode.rreqq.tlrt = 0; 1452 } 1453 fp->mode.rreqq.tlrt |= rt & 0x3; 1454 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1455 fp->mode.rreqq.pri = 0; 1456 fp->mode.rreqq.src = 0; 1457 fp->mode.rreqq.dst = addr_hi >> 16; 1458 fp->mode.rreqq.dest_lo = addr_lo; 1459 xfer->hand = hand; 1460 1461 err = fw_asyreq(fc, -1, xfer); 1462 if(err){ 1463 fw_xfer_free( xfer); 1464 return NULL; 1465 } 1466 return xfer; 1467} 1468 1469/* 1470 * Callback for the IEEE1394 bus information collection. 1471 */ 1472static void 1473fw_bus_explore_callback(struct fw_xfer *xfer) 1474{ 1475 struct firewire_comm *fc; 1476 struct fw_pkt *sfp,*rfp; 1477 struct csrhdr *chdr; 1478 struct csrdir *csrd; 1479 struct csrreg *csrreg; 1480 uint32_t offset; 1481 1482 1483 if(xfer == NULL) { 1484 printf("xfer == NULL\n"); 1485 return; 1486 } 1487 fc = xfer->fc; 1488 1489 if (firewire_debug) 1490 printf("node%d: callback addr=0x%x\n", 1491 fc->ongonode, fc->ongoaddr); 1492 1493 if(xfer->resp != 0){ 1494 device_printf(fc->bdev, 1495 "bus_explore node=%d addr=0x%x resp=%d\n", 1496 fc->ongonode, fc->ongoaddr, xfer->resp); 1497 goto errnode; 1498 } 1499 1500 sfp = &xfer->send.hdr; 1501 rfp = &xfer->recv.hdr; 1502#if 0 1503 { 1504 uint32_t *qld; 1505 int i; 1506 qld = (uint32_t *)xfer->recv.buf; 1507 printf("len:%d\n", xfer->recv.len); 1508 for( i = 0 ; i <= xfer->recv.len && i < 32; i+= 4){ 1509 printf("0x%08x ", rfp->mode.ld[i/4]); 1510 if((i % 16) == 15) printf("\n"); 1511 } 1512 if((i % 16) != 15) printf("\n"); 1513 } 1514#endif 1515 if(fc->ongodev == NULL){ 1516 if(sfp->mode.rreqq.dest_lo == (0xf0000000 | CSRROMOFF)){ 1517 rfp->mode.rresq.data = ntohl(rfp->mode.rresq.data); 1518 chdr = (struct csrhdr *)(&rfp->mode.rresq.data); 1519/* If CSR is minimal confinguration, more investigation is not needed. */ 1520 if(chdr->info_len == 1){ 1521 if (firewire_debug) 1522 printf("node%d: minimal config\n", 1523 fc->ongonode); 1524 goto nextnode; 1525 }else{ 1526 fc->ongoaddr = CSRROMOFF + 0xc; 1527 } 1528 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0xc))){ 1529 fc->ongoeui.hi = ntohl(rfp->mode.rresq.data); 1530 fc->ongoaddr = CSRROMOFF + 0x10; 1531 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0x10))){ 1532 fc->ongoeui.lo = ntohl(rfp->mode.rresq.data); 1533 if (fc->ongoeui.hi == 0 && fc->ongoeui.lo == 0) { 1534 if (firewire_debug) 1535 printf("node%d: eui64 is zero.\n", 1536 fc->ongonode); 1537 goto nextnode; 1538 } 1539 fc->ongoaddr = CSRROMOFF; 1540 } 1541 }else{ 1542 if (fc->ongoaddr == CSRROMOFF && 1543 fc->ongodev->csrrom[0] == ntohl(rfp->mode.rresq.data)) { 1544 fc->ongodev->status = FWDEVATTACHED; 1545 goto nextnode; 1546 } 1547 fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4] = ntohl(rfp->mode.rresq.data); 1548 if(fc->ongoaddr > fc->ongodev->rommax){ 1549 fc->ongodev->rommax = fc->ongoaddr; 1550 } 1551 csrd = SLIST_FIRST(&fc->ongocsr); 1552 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1553 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1554 offset = CSRROMOFF; 1555 }else{ 1556 chdr = (struct csrhdr *)&fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]; 1557 offset = csrd->off; 1558 } 1559 if(fc->ongoaddr > (CSRROMOFF + 0x14) && fc->ongoaddr != offset){ 1560 csrreg = (struct csrreg *)&fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4]; 1561 if( csrreg->key == 0x81 || csrreg->key == 0xd1){ 1562 csrd = SLIST_FIRST(&fc->csrfree); 1563 if(csrd == NULL){ 1564 goto nextnode; 1565 }else{ 1566 csrd->ongoaddr = fc->ongoaddr; 1567 fc->ongoaddr += csrreg->val * 4; 1568 csrd->off = fc->ongoaddr; 1569 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1570 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1571 goto nextaddr; 1572 } 1573 } 1574 } 1575 fc->ongoaddr += 4; 1576 if(((fc->ongoaddr - offset)/4 > chdr->crc_len) && 1577 (fc->ongodev->rommax < 0x414)){ 1578 if(fc->ongodev->rommax <= 0x414){ 1579 csrd = SLIST_FIRST(&fc->csrfree); 1580 if(csrd == NULL) goto nextnode; 1581 csrd->off = fc->ongoaddr; 1582 csrd->ongoaddr = fc->ongoaddr; 1583 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1584 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1585 } 1586 goto nextaddr; 1587 } 1588 1589 while(((fc->ongoaddr - offset)/4 > chdr->crc_len)){ 1590 if(csrd == NULL){ 1591 goto nextnode; 1592 }; 1593 fc->ongoaddr = csrd->ongoaddr + 4; 1594 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1595 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1596 csrd = SLIST_FIRST(&fc->ongocsr); 1597 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1598 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1599 offset = CSRROMOFF; 1600 }else{ 1601 chdr = (struct csrhdr *)&(fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]); 1602 offset = csrd->off; 1603 } 1604 } 1605 if((fc->ongoaddr - CSRROMOFF) > CSRROMSIZE){ 1606 goto nextnode; 1607 } 1608 } 1609nextaddr: 1610 fw_xfer_free( xfer); 1611 fw_bus_explore(fc); 1612 return; 1613errnode: 1614 if (fc->ongodev != NULL) { 1615 fc->ongodev->status = FWDEVINVAL; 1616 /* Invalidate ROM */ 1617 fc->ongodev->csrrom[0] = 0; 1618 } 1619nextnode: 1620 fw_xfer_free( xfer); 1621 fc->ongonode++; 1622/* housekeeping work space */ 1623 fc->ongoaddr = CSRROMOFF; 1624 fc->ongodev = NULL; 1625 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1626 while((csrd = SLIST_FIRST(&fc->ongocsr)) != NULL){ 1627 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1628 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1629 } 1630 fw_bus_explore(fc); 1631 return; 1632} 1633 1634/* 1635 * To attach sub-devices layer onto IEEE1394 bus. 1636 */ 1637static void 1638fw_attach_dev(struct firewire_comm *fc) 1639{ 1640 struct fw_device *fwdev, *next; 1641 int i, err; 1642 device_t *devlistp; 1643 int devcnt; 1644 struct firewire_dev_comm *fdc; 1645 1646 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1647 next = STAILQ_NEXT(fwdev, link); 1648 if (fwdev->status == FWDEVINIT) { 1649 fwdev->status = FWDEVATTACHED; 1650 } else if (fwdev->status == FWDEVINVAL) { 1651 fwdev->rcnt ++; 1652 if (fwdev->rcnt > hold_count) { 1653 /* 1654 * Remove devices which have not been seen 1655 * for a while. 1656 */ 1657 STAILQ_REMOVE(&fc->devices, fwdev, fw_device, 1658 link); 1659 free(fwdev, M_FW); 1660 } 1661 } 1662 } 1663 1664 err = device_get_children(fc->bdev, &devlistp, &devcnt); 1665 if( err != 0 ) 1666 return; 1667 for( i = 0 ; i < devcnt ; i++){ 1668 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 1669 fdc = device_get_softc(devlistp[i]); 1670 if (fdc->post_explore != NULL) 1671 fdc->post_explore(fdc); 1672 } 1673 } 1674 free(devlistp, M_TEMP); 1675 1676 return; 1677} 1678 1679/* 1680 * To allocate unique transaction label. 1681 */ 1682static int 1683fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer) 1684{ 1685 u_int i; 1686 struct tlabel *tl, *tmptl; 1687 int s; 1688 static uint32_t label = 0; 1689 1690 s = splfw(); 1691 for( i = 0 ; i < 0x40 ; i ++){ 1692 label = (label + 1) & 0x3f; 1693 for(tmptl = STAILQ_FIRST(&fc->tlabels[label]); 1694 tmptl != NULL; tmptl = STAILQ_NEXT(tmptl, link)){ 1695 if (tmptl->xfer->send.hdr.mode.hdr.dst == 1696 xfer->send.hdr.mode.hdr.dst) 1697 break; 1698 } 1699 if(tmptl == NULL) { 1700 tl = malloc(sizeof(struct tlabel),M_FW,M_NOWAIT); 1701 if (tl == NULL) { 1702 splx(s); 1703 return (-1); 1704 } 1705 tl->xfer = xfer; 1706 STAILQ_INSERT_TAIL(&fc->tlabels[label], tl, link); 1707 splx(s); 1708 if (firewire_debug > 1) 1709 printf("fw_get_tlabel: dst=%d tl=%d\n", 1710 xfer->send.hdr.mode.hdr.dst, label); 1711 return(label); 1712 } 1713 } 1714 splx(s); 1715 1716 if (firewire_debug > 1) 1717 printf("fw_get_tlabel: no free tlabel\n"); 1718 return(-1); 1719} 1720 1721static void 1722fw_rcv_copy(struct fw_rcv_buf *rb) 1723{ 1724 struct fw_pkt *pkt; 1725 u_char *p; 1726 struct tcode_info *tinfo; 1727 u_int res, i, len, plen; 1728 1729 rb->xfer->recv.spd -= rb->spd; 1730 1731 pkt = (struct fw_pkt *)rb->vec->iov_base; 1732 tinfo = &rb->fc->tcode[pkt->mode.hdr.tcode]; 1733 1734 /* Copy header */ 1735 p = (u_char *)&rb->xfer->recv.hdr; 1736 bcopy(rb->vec->iov_base, p, tinfo->hdr_len); 1737 rb->vec->iov_base = (u_char *)rb->vec->iov_base + tinfo->hdr_len; 1738 rb->vec->iov_len -= tinfo->hdr_len; 1739 1740 /* Copy payload */ 1741 p = (u_char *)rb->xfer->recv.payload; 1742 res = rb->xfer->recv.pay_len; 1743 1744 /* special handling for RRESQ */ 1745 if (pkt->mode.hdr.tcode == FWTCODE_RRESQ && 1746 p != NULL && res >= sizeof(uint32_t)) { 1747 *(uint32_t *)p = pkt->mode.rresq.data; 1748 rb->xfer->recv.pay_len = sizeof(uint32_t); 1749 return; 1750 } 1751 1752 if ((tinfo->flag & FWTI_BLOCK_ASY) == 0) 1753 return; 1754 1755 plen = pkt->mode.rresb.len; 1756 1757 for (i = 0; i < rb->nvec; i++, rb->vec++) { 1758 len = MIN(rb->vec->iov_len, plen); 1759 if (res < len) { 1760 printf("rcv buffer(%d) is %d bytes short.\n", 1761 rb->xfer->recv.pay_len, len - res); 1762 len = res; 1763 } 1764 bcopy(rb->vec->iov_base, p, len); 1765 p += len; 1766 res -= len; 1767 plen -= len; 1768 if (res == 0 || plen == 0) 1769 break; 1770 } 1771 rb->xfer->recv.pay_len -= res; 1772 1773} 1774 1775/* 1776 * Generic packet receiving process. 1777 */ 1778void 1779fw_rcv(struct fw_rcv_buf *rb) 1780{ 1781 struct fw_pkt *fp, *resfp; 1782 struct fw_bind *bind; 1783 int tcode, s; 1784 int i, len, oldstate; 1785#if 0 1786 { 1787 uint32_t *qld; 1788 int i; 1789 qld = (uint32_t *)buf; 1790 printf("spd %d len:%d\n", spd, len); 1791 for( i = 0 ; i <= len && i < 32; i+= 4){ 1792 printf("0x%08x ", ntohl(qld[i/4])); 1793 if((i % 16) == 15) printf("\n"); 1794 } 1795 if((i % 16) != 15) printf("\n"); 1796 } 1797#endif 1798 fp = (struct fw_pkt *)rb->vec[0].iov_base; 1799 tcode = fp->mode.common.tcode; 1800 switch (tcode) { 1801 case FWTCODE_WRES: 1802 case FWTCODE_RRESQ: 1803 case FWTCODE_RRESB: 1804 case FWTCODE_LRES: 1805 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1806 fp->mode.hdr.tlrt >> 2); 1807 if(rb->xfer == NULL) { 1808 printf("fw_rcv: unknown response " 1809 "%s(%x) src=0x%x tl=0x%x rt=%d data=0x%x\n", 1810 tcode_str[tcode], tcode, 1811 fp->mode.hdr.src, 1812 fp->mode.hdr.tlrt >> 2, 1813 fp->mode.hdr.tlrt & 3, 1814 fp->mode.rresq.data); 1815#if 1 1816 printf("try ad-hoc work around!!\n"); 1817 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1818 (fp->mode.hdr.tlrt >> 2)^3); 1819 if (rb->xfer == NULL) { 1820 printf("no use...\n"); 1821 goto err; 1822 } 1823#else 1824 goto err; 1825#endif 1826 } 1827 fw_rcv_copy(rb); 1828 if (rb->xfer->recv.hdr.mode.wres.rtcode != RESP_CMP) 1829 rb->xfer->resp = EIO; 1830 else 1831 rb->xfer->resp = 0; 1832 /* make sure the packet is drained in AT queue */ 1833 oldstate = rb->xfer->state; 1834 rb->xfer->state = FWXF_RCVD; 1835 switch (oldstate) { 1836 case FWXF_SENT: 1837 fw_xfer_done(rb->xfer); 1838 break; 1839 case FWXF_START: 1840#if 0 1841 if (firewire_debug) 1842 printf("not sent yet tl=%x\n", rb->xfer->tl); 1843#endif 1844 break; 1845 default: 1846 printf("unexpected state %d\n", rb->xfer->state); 1847 } 1848 return; 1849 case FWTCODE_WREQQ: 1850 case FWTCODE_WREQB: 1851 case FWTCODE_RREQQ: 1852 case FWTCODE_RREQB: 1853 case FWTCODE_LREQ: 1854 bind = fw_bindlookup(rb->fc, fp->mode.rreqq.dest_hi, 1855 fp->mode.rreqq.dest_lo); 1856 if(bind == NULL){ 1857 printf("Unknown service addr 0x%04x:0x%08x %s(%x)" 1858#if defined(__DragonFly__) || __FreeBSD_version < 500000 1859 " src=0x%x data=%lx\n", 1860#else 1861 " src=0x%x data=%x\n", 1862#endif 1863 fp->mode.wreqq.dest_hi, fp->mode.wreqq.dest_lo, 1864 tcode_str[tcode], tcode, 1865 fp->mode.hdr.src, ntohl(fp->mode.wreqq.data)); 1866 if (rb->fc->status == FWBUSRESET) { 1867 printf("fw_rcv: cannot respond(bus reset)!\n"); 1868 goto err; 1869 } 1870 rb->xfer = fw_xfer_alloc(M_FWXFER); 1871 if(rb->xfer == NULL){ 1872 return; 1873 } 1874 rb->xfer->send.spd = rb->spd; 1875 rb->xfer->send.pay_len = 0; 1876 resfp = &rb->xfer->send.hdr; 1877 switch (tcode) { 1878 case FWTCODE_WREQQ: 1879 case FWTCODE_WREQB: 1880 resfp->mode.hdr.tcode = FWTCODE_WRES; 1881 break; 1882 case FWTCODE_RREQQ: 1883 resfp->mode.hdr.tcode = FWTCODE_RRESQ; 1884 break; 1885 case FWTCODE_RREQB: 1886 resfp->mode.hdr.tcode = FWTCODE_RRESB; 1887 break; 1888 case FWTCODE_LREQ: 1889 resfp->mode.hdr.tcode = FWTCODE_LRES; 1890 break; 1891 } 1892 resfp->mode.hdr.dst = fp->mode.hdr.src; 1893 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt; 1894 resfp->mode.hdr.pri = fp->mode.hdr.pri; 1895 resfp->mode.rresb.rtcode = RESP_ADDRESS_ERROR; 1896 resfp->mode.rresb.extcode = 0; 1897 resfp->mode.rresb.len = 0; 1898/* 1899 rb->xfer->hand = fw_asy_callback; 1900*/ 1901 rb->xfer->hand = fw_xfer_free; 1902 if(fw_asyreq(rb->fc, -1, rb->xfer)){ 1903 fw_xfer_free(rb->xfer); 1904 return; 1905 } 1906 goto err; 1907 } 1908 len = 0; 1909 for (i = 0; i < rb->nvec; i ++) 1910 len += rb->vec[i].iov_len; 1911 switch(bind->act_type){ 1912 case FWACT_XFER: 1913 /* splfw()?? */ 1914 rb->xfer = STAILQ_FIRST(&bind->xferlist); 1915 if (rb->xfer == NULL) { 1916 printf("Discard a packet for this bind.\n"); 1917 goto err; 1918 } 1919 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 1920 fw_rcv_copy(rb); 1921 rb->xfer->hand(rb->xfer); 1922 return; 1923 break; 1924 case FWACT_CH: 1925 if(rb->fc->ir[bind->sub]->queued >= 1926 rb->fc->ir[bind->sub]->maxq){ 1927 device_printf(rb->fc->bdev, 1928 "Discard a packet %x %d\n", 1929 bind->sub, 1930 rb->fc->ir[bind->sub]->queued); 1931 goto err; 1932 } 1933 rb->xfer = STAILQ_FIRST(&bind->xferlist); 1934 if (rb->xfer == NULL) { 1935 printf("Discard packet for this bind\n"); 1936 goto err; 1937 } 1938 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 1939 fw_rcv_copy(rb); 1940 s = splfw(); 1941 rb->fc->ir[bind->sub]->queued++; 1942 STAILQ_INSERT_TAIL(&rb->fc->ir[bind->sub]->q, 1943 rb->xfer, link); 1944 splx(s); 1945 1946 wakeup((caddr_t)rb->fc->ir[bind->sub]); 1947 1948 return; 1949 break; 1950 default: 1951 goto err; 1952 break; 1953 } 1954 break; 1955#if 0 /* shouldn't happen ?? or for GASP */ 1956 case FWTCODE_STREAM: 1957 { 1958 struct fw_xferq *xferq; 1959 1960 xferq = rb->fc->ir[sub]; 1961#if 0 1962 printf("stream rcv dma %d len %d off %d spd %d\n", 1963 sub, len, off, spd); 1964#endif 1965 if(xferq->queued >= xferq->maxq) { 1966 printf("receive queue is full\n"); 1967 goto err; 1968 } 1969 /* XXX get xfer from xfer queue, we don't need copy for 1970 per packet mode */ 1971 rb->xfer = fw_xfer_alloc_buf(M_FWXFER, 0, /* XXX */ 1972 vec[0].iov_len); 1973 if (rb->xfer == NULL) goto err; 1974 fw_rcv_copy(rb) 1975 s = splfw(); 1976 xferq->queued++; 1977 STAILQ_INSERT_TAIL(&xferq->q, rb->xfer, link); 1978 splx(s); 1979 sc = device_get_softc(rb->fc->bdev); 1980#if defined(__DragonFly__) || __FreeBSD_version < 500000 1981 if (&xferq->rsel.si_pid != 0) 1982#else 1983 if (SEL_WAITING(&xferq->rsel)) 1984#endif 1985 selwakeuppri(&xferq->rsel, FWPRI); 1986 if (xferq->flag & FWXFERQ_WAKEUP) { 1987 xferq->flag &= ~FWXFERQ_WAKEUP; 1988 wakeup((caddr_t)xferq); 1989 } 1990 if (xferq->flag & FWXFERQ_HANDLER) { 1991 xferq->hand(xferq); 1992 } 1993 return; 1994 break; 1995 } 1996#endif 1997 default: 1998 printf("fw_rcv: unknow tcode %d\n", tcode); 1999 break; 2000 } 2001err: 2002 return; 2003} 2004 2005/* 2006 * Post process for Bus Manager election process. 2007 */ 2008static void 2009fw_try_bmr_callback(struct fw_xfer *xfer) 2010{ 2011 struct firewire_comm *fc; 2012 int bmr; 2013 2014 if (xfer == NULL) 2015 return; 2016 fc = xfer->fc; 2017 if (xfer->resp != 0) 2018 goto error; 2019 if (xfer->recv.payload == NULL) 2020 goto error; 2021 if (xfer->recv.hdr.mode.lres.rtcode != FWRCODE_COMPLETE) 2022 goto error; 2023 2024 bmr = ntohl(xfer->recv.payload[0]); 2025 if (bmr == 0x3f) 2026 bmr = fc->nodeid; 2027 2028 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f); 2029 fw_xfer_free_buf(xfer); 2030 fw_bmr(fc); 2031 return; 2032 2033error: 2034 device_printf(fc->bdev, "bus manager election failed\n"); 2035 fw_xfer_free_buf(xfer); 2036} 2037 2038 2039/* 2040 * To candidate Bus Manager election process. 2041 */ 2042static void 2043fw_try_bmr(void *arg) 2044{ 2045 struct fw_xfer *xfer; 2046 struct firewire_comm *fc = (struct firewire_comm *)arg; 2047 struct fw_pkt *fp; 2048 int err = 0; 2049 2050 xfer = fw_xfer_alloc_buf(M_FWXFER, 8, 4); 2051 if(xfer == NULL){ 2052 return; 2053 } 2054 xfer->send.spd = 0; 2055 fc->status = FWBUSMGRELECT; 2056 2057 fp = &xfer->send.hdr; 2058 fp->mode.lreq.dest_hi = 0xffff; 2059 fp->mode.lreq.tlrt = 0; 2060 fp->mode.lreq.tcode = FWTCODE_LREQ; 2061 fp->mode.lreq.pri = 0; 2062 fp->mode.lreq.src = 0; 2063 fp->mode.lreq.len = 8; 2064 fp->mode.lreq.extcode = EXTCODE_CMP_SWAP; 2065 fp->mode.lreq.dst = FWLOCALBUS | fc->irm; 2066 fp->mode.lreq.dest_lo = 0xf0000000 | BUS_MGR_ID; 2067 xfer->send.payload[0] = htonl(0x3f); 2068 xfer->send.payload[1] = htonl(fc->nodeid); 2069 xfer->hand = fw_try_bmr_callback; 2070 2071 err = fw_asyreq(fc, -1, xfer); 2072 if(err){ 2073 fw_xfer_free_buf(xfer); 2074 return; 2075 } 2076 return; 2077} 2078 2079#ifdef FW_VMACCESS 2080/* 2081 * Software implementation for physical memory block access. 2082 * XXX:Too slow, usef for debug purpose only. 2083 */ 2084static void 2085fw_vmaccess(struct fw_xfer *xfer){ 2086 struct fw_pkt *rfp, *sfp = NULL; 2087 uint32_t *ld = (uint32_t *)xfer->recv.buf; 2088 2089 printf("vmaccess spd:%2x len:%03x data:%08x %08x %08x %08x\n", 2090 xfer->spd, xfer->recv.len, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 2091 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 2092 if(xfer->resp != 0){ 2093 fw_xfer_free( xfer); 2094 return; 2095 } 2096 if(xfer->recv.buf == NULL){ 2097 fw_xfer_free( xfer); 2098 return; 2099 } 2100 rfp = (struct fw_pkt *)xfer->recv.buf; 2101 switch(rfp->mode.hdr.tcode){ 2102 /* XXX need fix for 64bit arch */ 2103 case FWTCODE_WREQB: 2104 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2105 xfer->send.len = 12; 2106 sfp = (struct fw_pkt *)xfer->send.buf; 2107 bcopy(rfp->mode.wreqb.payload, 2108 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len)); 2109 sfp->mode.wres.tcode = FWTCODE_WRES; 2110 sfp->mode.wres.rtcode = 0; 2111 break; 2112 case FWTCODE_WREQQ: 2113 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2114 xfer->send.len = 12; 2115 sfp->mode.wres.tcode = FWTCODE_WRES; 2116 *((uint32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data; 2117 sfp->mode.wres.rtcode = 0; 2118 break; 2119 case FWTCODE_RREQB: 2120 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_FW, M_NOWAIT); 2121 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len); 2122 sfp = (struct fw_pkt *)xfer->send.buf; 2123 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo), 2124 sfp->mode.rresb.payload, (uint16_t)ntohs(rfp->mode.rreqb.len)); 2125 sfp->mode.rresb.tcode = FWTCODE_RRESB; 2126 sfp->mode.rresb.len = rfp->mode.rreqb.len; 2127 sfp->mode.rresb.rtcode = 0; 2128 sfp->mode.rresb.extcode = 0; 2129 break; 2130 case FWTCODE_RREQQ: 2131 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 2132 xfer->send.len = 16; 2133 sfp = (struct fw_pkt *)xfer->send.buf; 2134 sfp->mode.rresq.data = *(uint32_t *)(ntohl(rfp->mode.rreqq.dest_lo)); 2135 sfp->mode.wres.tcode = FWTCODE_RRESQ; 2136 sfp->mode.rresb.rtcode = 0; 2137 break; 2138 default: 2139 fw_xfer_free( xfer); 2140 return; 2141 } 2142 sfp->mode.hdr.dst = rfp->mode.hdr.src; 2143 xfer->dst = ntohs(rfp->mode.hdr.src); 2144 xfer->hand = fw_xfer_free; 2145 2146 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt; 2147 sfp->mode.hdr.pri = 0; 2148 2149 fw_asyreq(xfer->fc, -1, xfer); 2150/**/ 2151 return; 2152} 2153#endif 2154 2155/* 2156 * CRC16 check-sum for IEEE1394 register blocks. 2157 */ 2158uint16_t 2159fw_crc16(uint32_t *ptr, uint32_t len){ 2160 uint32_t i, sum, crc = 0; 2161 int shift; 2162 len = (len + 3) & ~3; 2163 for(i = 0 ; i < len ; i+= 4){ 2164 for( shift = 28 ; shift >= 0 ; shift -= 4){ 2165 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf; 2166 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum; 2167 } 2168 crc &= 0xffff; 2169 } 2170 return((uint16_t) crc); 2171} 2172 2173static int 2174fw_bmr(struct firewire_comm *fc) 2175{ 2176 struct fw_device fwdev; 2177 union fw_self_id *self_id; 2178 int cmstr; 2179 uint32_t quad; 2180 2181 /* Check to see if the current root node is cycle master capable */ 2182 self_id = fw_find_self_id(fc, fc->max_node); 2183 if (fc->max_node > 0) { 2184 /* XXX check cmc bit of businfo block rather than contender */ 2185 if (self_id->p0.link_active && self_id->p0.contender) 2186 cmstr = fc->max_node; 2187 else { 2188 device_printf(fc->bdev, 2189 "root node is not cycle master capable\n"); 2190 /* XXX shall we be the cycle master? */ 2191 cmstr = fc->nodeid; 2192 /* XXX need bus reset */ 2193 } 2194 } else 2195 cmstr = -1; 2196 2197 device_printf(fc->bdev, "bus manager %d ", CSRARC(fc, BUS_MGR_ID)); 2198 if(CSRARC(fc, BUS_MGR_ID) != fc->nodeid) { 2199 /* We are not the bus manager */ 2200 printf("\n"); 2201 return(0); 2202 } 2203 printf("(me)\n"); 2204 2205 /* Optimize gapcount */ 2206 if(fc->max_hop <= MAX_GAPHOP ) 2207 fw_phy_config(fc, cmstr, gap_cnt[fc->max_hop]); 2208 /* If we are the cycle master, nothing to do */ 2209 if (cmstr == fc->nodeid || cmstr == -1) 2210 return 0; 2211 /* Bus probe has not finished, make dummy fwdev for cmstr */ 2212 bzero(&fwdev, sizeof(fwdev)); 2213 fwdev.fc = fc; 2214 fwdev.dst = cmstr; 2215 fwdev.speed = 0; 2216 fwdev.maxrec = 8; /* 512 */ 2217 fwdev.status = FWDEVINIT; 2218 /* Set cmstr bit on the cycle master */ 2219 quad = htonl(1 << 8); 2220 fwmem_write_quad(&fwdev, NULL, 0/*spd*/, 2221 0xffff, 0xf0000000 | STATE_SET, &quad, fw_asy_callback_free); 2222 2223 return 0; 2224} 2225 2226static int 2227fw_modevent(module_t mode, int type, void *data) 2228{ 2229 int err = 0; 2230#if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2231 static eventhandler_tag fwdev_ehtag = NULL; 2232#endif 2233 2234 switch (type) { 2235 case MOD_LOAD: 2236#if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2237 fwdev_ehtag = EVENTHANDLER_REGISTER(dev_clone, 2238 fwdev_clone, 0, 1000); 2239#endif 2240 break; 2241 case MOD_UNLOAD: 2242#if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2243 if (fwdev_ehtag != NULL) 2244 EVENTHANDLER_DEREGISTER(dev_clone, fwdev_ehtag); 2245#endif 2246 break; 2247 case MOD_SHUTDOWN: 2248 break; 2249 default: 2250 return (EOPNOTSUPP); 2251 } 2252 return (err); 2253} 2254 2255 2256#ifdef __DragonFly__ 2257DECLARE_DUMMY_MODULE(firewire); 2258#endif 2259DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,fw_modevent,0); 2260MODULE_VERSION(firewire, 1); 2261