firewire.c revision 168051
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 168051 2007-03-30 15:43:56Z 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 fc->ibr(fc); 423 424 return 0; 425} 426 427/* 428 * Attach it as child. 429 */ 430static device_t 431firewire_add_child(device_t dev, int order, const char *name, int unit) 432{ 433 device_t child; 434 struct firewire_softc *sc; 435 436 sc = (struct firewire_softc *)device_get_softc(dev); 437 child = device_add_child(dev, name, unit); 438 if (child) { 439 device_set_ivars(child, sc->fc); 440 device_probe_and_attach(child); 441 } 442 443 return child; 444} 445 446static int 447firewire_resume(device_t dev) 448{ 449 struct firewire_softc *sc; 450 451 sc = (struct firewire_softc *)device_get_softc(dev); 452 sc->fc->status = FWBUSNOTREADY; 453 454 bus_generic_resume(dev); 455 456 return(0); 457} 458 459/* 460 * Dettach it. 461 */ 462static int 463firewire_detach(device_t dev) 464{ 465 struct firewire_softc *sc; 466 struct csrdir *csrd, *next; 467 struct fw_device *fwdev, *fwdev_next; 468 int err; 469 470 sc = (struct firewire_softc *)device_get_softc(dev); 471 if ((err = fwdev_destroydev(sc)) != 0) 472 return err; 473 474 if ((err = bus_generic_detach(dev)) != 0) 475 return err; 476 477 callout_stop(&sc->fc->timeout_callout); 478 callout_stop(&sc->fc->bmr_callout); 479 callout_stop(&sc->fc->busprobe_callout); 480 481 /* XXX xfree_free and untimeout on all xfers */ 482 for (fwdev = STAILQ_FIRST(&sc->fc->devices); fwdev != NULL; 483 fwdev = fwdev_next) { 484 fwdev_next = STAILQ_NEXT(fwdev, link); 485 free(fwdev, M_FW); 486 } 487 for (csrd = SLIST_FIRST(&sc->fc->csrfree); csrd != NULL; csrd = next) { 488 next = SLIST_NEXT(csrd, link); 489 free(csrd, M_FW); 490 } 491 free(sc->fc->topology_map, M_FW); 492 free(sc->fc->speed_map, M_FW); 493 free(sc->fc->crom_src_buf, M_FW); 494 return(0); 495} 496#if 0 497static int 498firewire_shutdown( device_t dev ) 499{ 500 return 0; 501} 502#endif 503 504 505static void 506fw_xferq_drain(struct fw_xferq *xferq) 507{ 508 struct fw_xfer *xfer; 509 510 while ((xfer = STAILQ_FIRST(&xferq->q)) != NULL) { 511 STAILQ_REMOVE_HEAD(&xferq->q, link); 512 xferq->queued --; 513 xfer->resp = EAGAIN; 514 fw_xfer_done(xfer); 515 } 516} 517 518void 519fw_drain_txq(struct firewire_comm *fc) 520{ 521 int i; 522 523 fw_xferq_drain(fc->atq); 524 fw_xferq_drain(fc->ats); 525 for(i = 0; i < fc->nisodma; i++) 526 fw_xferq_drain(fc->it[i]); 527} 528 529static void 530fw_reset_csr(struct firewire_comm *fc) 531{ 532 int i; 533 534 CSRARC(fc, STATE_CLEAR) 535 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 536 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 537 CSRARC(fc, NODE_IDS) = 0x3f; 538 539 CSRARC(fc, TOPO_MAP + 8) = 0; 540 fc->irm = -1; 541 542 fc->max_node = -1; 543 544 for(i = 2; i < 0x100/4 - 2 ; i++){ 545 CSRARC(fc, SPED_MAP + i * 4) = 0; 546 } 547 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 548 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 549 CSRARC(fc, RESET_START) = 0; 550 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0; 551 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19; 552 CSRARC(fc, CYCLE_TIME) = 0x0; 553 CSRARC(fc, BUS_TIME) = 0x0; 554 CSRARC(fc, BUS_MGR_ID) = 0x3f; 555 CSRARC(fc, BANDWIDTH_AV) = 4915; 556 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff; 557 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff; 558 CSRARC(fc, IP_CHANNELS) = (1 << 31); 559 560 CSRARC(fc, CONF_ROM) = 0x04 << 24; 561 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */ 562 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 | 563 1 << 28 | 0xff << 16 | 0x09 << 8; 564 CSRARC(fc, CONF_ROM + 0xc) = 0; 565 566/* DV depend CSRs see blue book */ 567 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON; 568 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON; 569 570 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 ); 571 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 572} 573 574static void 575fw_init_crom(struct firewire_comm *fc) 576{ 577 struct crom_src *src; 578 579 fc->crom_src_buf = (struct crom_src_buf *) 580 malloc(sizeof(struct crom_src_buf), M_FW, M_WAITOK | M_ZERO); 581 if (fc->crom_src_buf == NULL) 582 return; 583 584 src = &fc->crom_src_buf->src; 585 bzero(src, sizeof(struct crom_src)); 586 587 /* BUS info sample */ 588 src->hdr.info_len = 4; 589 590 src->businfo.bus_name = CSR_BUS_NAME_IEEE1394; 591 592 src->businfo.irmc = 1; 593 src->businfo.cmc = 1; 594 src->businfo.isc = 1; 595 src->businfo.bmc = 1; 596 src->businfo.pmc = 0; 597 src->businfo.cyc_clk_acc = 100; 598 src->businfo.max_rec = fc->maxrec; 599 src->businfo.max_rom = MAXROM_4; 600 src->businfo.generation = 1; 601 src->businfo.link_spd = fc->speed; 602 603 src->businfo.eui64.hi = fc->eui.hi; 604 src->businfo.eui64.lo = fc->eui.lo; 605 606 STAILQ_INIT(&src->chunk_list); 607 608 fc->crom_src = src; 609 fc->crom_root = &fc->crom_src_buf->root; 610} 611 612static void 613fw_reset_crom(struct firewire_comm *fc) 614{ 615 struct crom_src_buf *buf; 616 struct crom_src *src; 617 struct crom_chunk *root; 618 619 if (fc->crom_src_buf == NULL) 620 fw_init_crom(fc); 621 622 buf = fc->crom_src_buf; 623 src = fc->crom_src; 624 root = fc->crom_root; 625 626 STAILQ_INIT(&src->chunk_list); 627 628 bzero(root, sizeof(struct crom_chunk)); 629 crom_add_chunk(src, NULL, root, 0); 630 crom_add_entry(root, CSRKEY_NCAP, 0x0083c0); /* XXX */ 631 /* private company_id */ 632 crom_add_entry(root, CSRKEY_VENDOR, CSRVAL_VENDOR_PRIVATE); 633#ifdef __DragonFly__ 634 crom_add_simple_text(src, root, &buf->vendor, "DragonFly Project"); 635 crom_add_entry(root, CSRKEY_HW, __DragonFly_cc_version); 636#else 637 crom_add_simple_text(src, root, &buf->vendor, "FreeBSD Project"); 638 crom_add_entry(root, CSRKEY_HW, __FreeBSD_version); 639#endif 640 crom_add_simple_text(src, root, &buf->hw, hostname); 641} 642 643/* 644 * Called after bus reset. 645 */ 646void 647fw_busreset(struct firewire_comm *fc) 648{ 649 struct firewire_dev_comm *fdc; 650 struct crom_src *src; 651 device_t *devlistp; 652 void *newrom; 653 int i, devcnt; 654 655 switch(fc->status){ 656 case FWBUSMGRELECT: 657 callout_stop(&fc->bmr_callout); 658 break; 659 default: 660 break; 661 } 662 fc->status = FWBUSRESET; 663 fw_reset_csr(fc); 664 fw_reset_crom(fc); 665 666 if (device_get_children(fc->bdev, &devlistp, &devcnt) == 0) { 667 for( i = 0 ; i < devcnt ; i++) 668 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 669 fdc = device_get_softc(devlistp[i]); 670 if (fdc->post_busreset != NULL) 671 fdc->post_busreset(fdc); 672 } 673 free(devlistp, M_TEMP); 674 } 675 676 newrom = malloc(CROMSIZE, M_FW, M_NOWAIT | M_ZERO); 677 src = &fc->crom_src_buf->src; 678 crom_load(src, (uint32_t *)newrom, CROMSIZE); 679 if (bcmp(newrom, fc->config_rom, CROMSIZE) != 0) { 680 /* bump generation and reload */ 681 src->businfo.generation ++; 682 /* generation must be between 0x2 and 0xF */ 683 if (src->businfo.generation < 2) 684 src->businfo.generation ++; 685 crom_load(src, (uint32_t *)newrom, CROMSIZE); 686 bcopy(newrom, (void *)fc->config_rom, CROMSIZE); 687 } 688 free(newrom, M_FW); 689} 690 691/* Call once after reboot */ 692void fw_init(struct firewire_comm *fc) 693{ 694 int i; 695 struct csrdir *csrd; 696#ifdef FW_VMACCESS 697 struct fw_xfer *xfer; 698 struct fw_bind *fwb; 699#endif 700 701 fc->arq->queued = 0; 702 fc->ars->queued = 0; 703 fc->atq->queued = 0; 704 fc->ats->queued = 0; 705 706 fc->arq->buf = NULL; 707 fc->ars->buf = NULL; 708 fc->atq->buf = NULL; 709 fc->ats->buf = NULL; 710 711 fc->arq->flag = 0; 712 fc->ars->flag = 0; 713 fc->atq->flag = 0; 714 fc->ats->flag = 0; 715 716 STAILQ_INIT(&fc->atq->q); 717 STAILQ_INIT(&fc->ats->q); 718 719 for( i = 0 ; i < fc->nisodma ; i ++ ){ 720 fc->it[i]->queued = 0; 721 fc->ir[i]->queued = 0; 722 723 fc->it[i]->start = NULL; 724 fc->ir[i]->start = NULL; 725 726 fc->it[i]->buf = NULL; 727 fc->ir[i]->buf = NULL; 728 729 fc->it[i]->flag = FWXFERQ_STREAM; 730 fc->ir[i]->flag = FWXFERQ_STREAM; 731 732 STAILQ_INIT(&fc->it[i]->q); 733 STAILQ_INIT(&fc->ir[i]->q); 734 735 STAILQ_INIT(&fc->it[i]->binds); 736 STAILQ_INIT(&fc->ir[i]->binds); 737 } 738 739 fc->arq->maxq = FWMAXQUEUE; 740 fc->ars->maxq = FWMAXQUEUE; 741 fc->atq->maxq = FWMAXQUEUE; 742 fc->ats->maxq = FWMAXQUEUE; 743 744 for( i = 0 ; i < fc->nisodma ; i++){ 745 fc->ir[i]->maxq = FWMAXQUEUE; 746 fc->it[i]->maxq = FWMAXQUEUE; 747 } 748/* Initialize csr registers */ 749 fc->topology_map = (struct fw_topology_map *)malloc( 750 sizeof(struct fw_topology_map), 751 M_FW, M_NOWAIT | M_ZERO); 752 fc->speed_map = (struct fw_speed_map *)malloc( 753 sizeof(struct fw_speed_map), 754 M_FW, M_NOWAIT | M_ZERO); 755 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16; 756 CSRARC(fc, TOPO_MAP + 4) = 1; 757 CSRARC(fc, SPED_MAP) = 0x3f1 << 16; 758 CSRARC(fc, SPED_MAP + 4) = 1; 759 760 STAILQ_INIT(&fc->devices); 761 762/* Initialize csr ROM work space */ 763 SLIST_INIT(&fc->ongocsr); 764 SLIST_INIT(&fc->csrfree); 765 for( i = 0 ; i < FWMAXCSRDIR ; i++){ 766 csrd = (struct csrdir *) malloc(sizeof(struct csrdir), M_FW,M_NOWAIT); 767 if(csrd == NULL) break; 768 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 769 } 770 771/* Initialize Async handlers */ 772 STAILQ_INIT(&fc->binds); 773 for( i = 0 ; i < 0x40 ; i++){ 774 STAILQ_INIT(&fc->tlabels[i]); 775 } 776 777/* DV depend CSRs see blue book */ 778#if 0 779 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */ 780 CSRARC(fc, oPCR) = 0x8000007a; 781 for(i = 4 ; i < 0x7c/4 ; i+=4){ 782 CSRARC(fc, i + oPCR) = 0x8000007a; 783 } 784 785 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */ 786 CSRARC(fc, iPCR) = 0x803f0000; 787 for(i = 4 ; i < 0x7c/4 ; i+=4){ 788 CSRARC(fc, i + iPCR) = 0x0; 789 } 790#endif 791 792 fc->crom_src_buf = NULL; 793 794#ifdef FW_VMACCESS 795 xfer = fw_xfer_alloc(); 796 if(xfer == NULL) return; 797 798 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_FW, M_NOWAIT); 799 if(fwb == NULL){ 800 fw_xfer_free(xfer); 801 return; 802 } 803 xfer->hand = fw_vmaccess; 804 xfer->fc = fc; 805 xfer->sc = NULL; 806 807 fwb->start_hi = 0x2; 808 fwb->start_lo = 0; 809 fwb->addrlen = 0xffffffff; 810 fwb->xfer = xfer; 811 fw_bindadd(fc, fwb); 812#endif 813} 814 815#define BIND_CMP(addr, fwb) (((addr) < (fwb)->start)?-1:\ 816 ((fwb)->end < (addr))?1:0) 817 818/* 819 * To lookup bound process from IEEE1394 address. 820 */ 821struct fw_bind * 822fw_bindlookup(struct firewire_comm *fc, uint16_t dest_hi, uint32_t dest_lo) 823{ 824 u_int64_t addr; 825 struct fw_bind *tfw; 826 827 addr = ((u_int64_t)dest_hi << 32) | dest_lo; 828 STAILQ_FOREACH(tfw, &fc->binds, fclist) 829 if (tfw->act_type != FWACT_NULL && BIND_CMP(addr, tfw) == 0) 830 return(tfw); 831 return(NULL); 832} 833 834/* 835 * To bind IEEE1394 address block to process. 836 */ 837int 838fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb) 839{ 840 struct fw_bind *tfw, *prev = NULL; 841 842 if (fwb->start > fwb->end) { 843 printf("%s: invalid range\n", __func__); 844 return EINVAL; 845 } 846 847 STAILQ_FOREACH(tfw, &fc->binds, fclist) { 848 if (fwb->end < tfw->start) 849 break; 850 prev = tfw; 851 } 852 if (prev == NULL) { 853 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 854 goto out; 855 } 856 if (prev->end < fwb->start) { 857 STAILQ_INSERT_AFTER(&fc->binds, prev, fwb, fclist); 858 goto out; 859 } 860 861 printf("%s: bind failed\n", __func__); 862 return (EBUSY); 863 864out: 865 if (fwb->act_type == FWACT_CH) 866 STAILQ_INSERT_HEAD(&fc->ir[fwb->sub]->binds, fwb, chlist); 867 return (0); 868} 869 870/* 871 * To free IEEE1394 address block. 872 */ 873int 874fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb) 875{ 876#if 0 877 struct fw_xfer *xfer, *next; 878#endif 879 struct fw_bind *tfw; 880 int s; 881 882 s = splfw(); 883 STAILQ_FOREACH(tfw, &fc->binds, fclist) 884 if (tfw == fwb) { 885 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist); 886 goto found; 887 } 888 889 printf("%s: no such binding\n", __func__); 890 splx(s); 891 return (1); 892found: 893#if 0 894 /* shall we do this? */ 895 for (xfer = STAILQ_FIRST(&fwb->xferlist); xfer != NULL; xfer = next) { 896 next = STAILQ_NEXT(xfer, link); 897 fw_xfer_free(xfer); 898 } 899 STAILQ_INIT(&fwb->xferlist); 900#endif 901 902 splx(s); 903 return 0; 904} 905 906/* 907 * To free transaction label. 908 */ 909static void 910fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer) 911{ 912 struct tlabel *tl; 913 int s = splfw(); 914 915 for( tl = STAILQ_FIRST(&fc->tlabels[xfer->tl]); tl != NULL; 916 tl = STAILQ_NEXT(tl, link)){ 917 if(tl->xfer == xfer){ 918 STAILQ_REMOVE(&fc->tlabels[xfer->tl], tl, tlabel, link); 919 free(tl, M_FW); 920 splx(s); 921 return; 922 } 923 } 924 splx(s); 925 return; 926} 927 928/* 929 * To obtain XFER structure by transaction label. 930 */ 931static struct fw_xfer * 932fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel) 933{ 934 struct fw_xfer *xfer; 935 struct tlabel *tl; 936 int s = splfw(); 937 938 for( tl = STAILQ_FIRST(&fc->tlabels[tlabel]); tl != NULL; 939 tl = STAILQ_NEXT(tl, link)){ 940 if(tl->xfer->send.hdr.mode.hdr.dst == node){ 941 xfer = tl->xfer; 942 splx(s); 943 if (firewire_debug > 2) 944 printf("fw_tl2xfer: found tl=%d\n", tlabel); 945 return(xfer); 946 } 947 } 948 if (firewire_debug > 1) 949 printf("fw_tl2xfer: not found tl=%d\n", tlabel); 950 splx(s); 951 return(NULL); 952} 953 954/* 955 * To allocate IEEE1394 XFER structure. 956 */ 957struct fw_xfer * 958fw_xfer_alloc(struct malloc_type *type) 959{ 960 struct fw_xfer *xfer; 961 962 xfer = malloc(sizeof(struct fw_xfer), type, M_NOWAIT | M_ZERO); 963 if (xfer == NULL) 964 return xfer; 965 966 xfer->malloc = type; 967 968 return xfer; 969} 970 971struct fw_xfer * 972fw_xfer_alloc_buf(struct malloc_type *type, int send_len, int recv_len) 973{ 974 struct fw_xfer *xfer; 975 976 xfer = fw_xfer_alloc(type); 977 if (xfer == NULL) 978 return(NULL); 979 xfer->send.pay_len = send_len; 980 xfer->recv.pay_len = recv_len; 981 if (send_len > 0) { 982 xfer->send.payload = malloc(send_len, type, M_NOWAIT | M_ZERO); 983 if (xfer->send.payload == NULL) { 984 fw_xfer_free(xfer); 985 return(NULL); 986 } 987 } 988 if (recv_len > 0) { 989 xfer->recv.payload = malloc(recv_len, type, M_NOWAIT); 990 if (xfer->recv.payload == NULL) { 991 if (xfer->send.payload != NULL) 992 free(xfer->send.payload, type); 993 fw_xfer_free(xfer); 994 return(NULL); 995 } 996 } 997 return(xfer); 998} 999 1000/* 1001 * IEEE1394 XFER post process. 1002 */ 1003void 1004fw_xfer_done(struct fw_xfer *xfer) 1005{ 1006 if (xfer->hand == NULL) { 1007 printf("hand == NULL\n"); 1008 return; 1009 } 1010 1011 if (xfer->fc == NULL) 1012 panic("fw_xfer_done: why xfer->fc is NULL?"); 1013 1014 fw_tl_free(xfer->fc, xfer); 1015 xfer->hand(xfer); 1016} 1017 1018void 1019fw_xfer_unload(struct fw_xfer* xfer) 1020{ 1021 int s; 1022 1023 if(xfer == NULL ) return; 1024 if(xfer->state == FWXF_INQ){ 1025 printf("fw_xfer_free FWXF_INQ\n"); 1026 s = splfw(); 1027 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link); 1028 xfer->q->queued --; 1029 splx(s); 1030 } 1031 if (xfer->fc != NULL) { 1032#if 1 1033 if(xfer->state == FWXF_START) 1034 /* 1035 * This could happen if: 1036 * 1. We call fwohci_arcv() before fwohci_txd(). 1037 * 2. firewire_watch() is called. 1038 */ 1039 printf("fw_xfer_free FWXF_START\n"); 1040#endif 1041 } 1042 xfer->state = FWXF_INIT; 1043 xfer->resp = 0; 1044} 1045/* 1046 * To free IEEE1394 XFER structure. 1047 */ 1048void 1049fw_xfer_free_buf( struct fw_xfer* xfer) 1050{ 1051 if (xfer == NULL) { 1052 printf("%s: xfer == NULL\n", __func__); 1053 return; 1054 } 1055 fw_xfer_unload(xfer); 1056 if(xfer->send.payload != NULL){ 1057 free(xfer->send.payload, xfer->malloc); 1058 } 1059 if(xfer->recv.payload != NULL){ 1060 free(xfer->recv.payload, xfer->malloc); 1061 } 1062 free(xfer, xfer->malloc); 1063} 1064 1065void 1066fw_xfer_free( struct fw_xfer* xfer) 1067{ 1068 if (xfer == NULL) { 1069 printf("%s: xfer == NULL\n", __func__); 1070 return; 1071 } 1072 fw_xfer_unload(xfer); 1073 free(xfer, xfer->malloc); 1074} 1075 1076void 1077fw_asy_callback_free(struct fw_xfer *xfer) 1078{ 1079#if 0 1080 printf("asyreq done state=%d resp=%d\n", 1081 xfer->state, xfer->resp); 1082#endif 1083 fw_xfer_free(xfer); 1084} 1085 1086/* 1087 * To configure PHY. 1088 */ 1089static void 1090fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count) 1091{ 1092 struct fw_xfer *xfer; 1093 struct fw_pkt *fp; 1094 1095 fc->status = FWBUSPHYCONF; 1096 1097 xfer = fw_xfer_alloc(M_FWXFER); 1098 if (xfer == NULL) 1099 return; 1100 xfer->fc = fc; 1101 xfer->hand = fw_asy_callback_free; 1102 1103 fp = &xfer->send.hdr; 1104 fp->mode.ld[1] = 0; 1105 if (root_node >= 0) 1106 fp->mode.ld[1] |= (root_node & 0x3f) << 24 | 1 << 23; 1107 if (gap_count >= 0) 1108 fp->mode.ld[1] |= 1 << 22 | (gap_count & 0x3f) << 16; 1109 fp->mode.ld[2] = ~fp->mode.ld[1]; 1110/* XXX Dangerous, how to pass PHY packet to device driver */ 1111 fp->mode.common.tcode |= FWTCODE_PHY; 1112 1113 if (firewire_debug) 1114 printf("send phy_config root_node=%d gap_count=%d\n", 1115 root_node, gap_count); 1116 fw_asyreq(fc, -1, xfer); 1117} 1118 1119#if 0 1120/* 1121 * Dump self ID. 1122 */ 1123static void 1124fw_print_sid(uint32_t sid) 1125{ 1126 union fw_self_id *s; 1127 s = (union fw_self_id *) &sid; 1128 printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d" 1129 " p0:%d p1:%d p2:%d i:%d m:%d\n", 1130 s->p0.phy_id, s->p0.link_active, s->p0.gap_count, 1131 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender, 1132 s->p0.power_class, s->p0.port0, s->p0.port1, 1133 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets); 1134} 1135#endif 1136 1137/* 1138 * To receive self ID. 1139 */ 1140void fw_sidrcv(struct firewire_comm* fc, uint32_t *sid, u_int len) 1141{ 1142 uint32_t *p; 1143 union fw_self_id *self_id; 1144 u_int i, j, node, c_port = 0, i_branch = 0; 1145 1146 fc->sid_cnt = len /(sizeof(uint32_t) * 2); 1147 fc->status = FWBUSINIT; 1148 fc->max_node = fc->nodeid & 0x3f; 1149 CSRARC(fc, NODE_IDS) = ((uint32_t)fc->nodeid) << 16; 1150 fc->status = FWBUSCYMELECT; 1151 fc->topology_map->crc_len = 2; 1152 fc->topology_map->generation ++; 1153 fc->topology_map->self_id_count = 0; 1154 fc->topology_map->node_count = 0; 1155 fc->speed_map->generation ++; 1156 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4; 1157 self_id = &fc->topology_map->self_id[0]; 1158 for(i = 0; i < fc->sid_cnt; i ++){ 1159 if (sid[1] != ~sid[0]) { 1160 printf("fw_sidrcv: invalid self-id packet\n"); 1161 sid += 2; 1162 continue; 1163 } 1164 *self_id = *((union fw_self_id *)sid); 1165 fc->topology_map->crc_len++; 1166 if(self_id->p0.sequel == 0){ 1167 fc->topology_map->node_count ++; 1168 c_port = 0; 1169#if 0 1170 fw_print_sid(sid[0]); 1171#endif 1172 node = self_id->p0.phy_id; 1173 if(fc->max_node < node){ 1174 fc->max_node = self_id->p0.phy_id; 1175 } 1176 /* XXX I'm not sure this is the right speed_map */ 1177 fc->speed_map->speed[node][node] 1178 = self_id->p0.phy_speed; 1179 for (j = 0; j < node; j ++) { 1180 fc->speed_map->speed[j][node] 1181 = fc->speed_map->speed[node][j] 1182 = min(fc->speed_map->speed[j][j], 1183 self_id->p0.phy_speed); 1184 } 1185 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) && 1186 (self_id->p0.link_active && self_id->p0.contender)) { 1187 fc->irm = self_id->p0.phy_id; 1188 } 1189 if(self_id->p0.port0 >= 0x2){ 1190 c_port++; 1191 } 1192 if(self_id->p0.port1 >= 0x2){ 1193 c_port++; 1194 } 1195 if(self_id->p0.port2 >= 0x2){ 1196 c_port++; 1197 } 1198 } 1199 if(c_port > 2){ 1200 i_branch += (c_port - 2); 1201 } 1202 sid += 2; 1203 self_id++; 1204 fc->topology_map->self_id_count ++; 1205 } 1206 device_printf(fc->bdev, "%d nodes", fc->max_node + 1); 1207 /* CRC */ 1208 fc->topology_map->crc = fw_crc16( 1209 (uint32_t *)&fc->topology_map->generation, 1210 fc->topology_map->crc_len * 4); 1211 fc->speed_map->crc = fw_crc16( 1212 (uint32_t *)&fc->speed_map->generation, 1213 fc->speed_map->crc_len * 4); 1214 /* byteswap and copy to CSR */ 1215 p = (uint32_t *)fc->topology_map; 1216 for (i = 0; i <= fc->topology_map->crc_len; i++) 1217 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++); 1218 p = (uint32_t *)fc->speed_map; 1219 CSRARC(fc, SPED_MAP) = htonl(*p++); 1220 CSRARC(fc, SPED_MAP + 4) = htonl(*p++); 1221 /* don't byte-swap uint8_t array */ 1222 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4); 1223 1224 fc->max_hop = fc->max_node - i_branch; 1225 printf(", maxhop <= %d", fc->max_hop); 1226 1227 if(fc->irm == -1 ){ 1228 printf(", Not found IRM capable node"); 1229 }else{ 1230 printf(", cable IRM = %d", fc->irm); 1231 if (fc->irm == fc->nodeid) 1232 printf(" (me)"); 1233 } 1234 printf("\n"); 1235 1236 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) { 1237 if (fc->irm == fc->nodeid) { 1238 fc->status = FWBUSMGRDONE; 1239 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm); 1240 fw_bmr(fc); 1241 } else { 1242 fc->status = FWBUSMGRELECT; 1243 callout_reset(&fc->bmr_callout, hz/8, 1244 (void *)fw_try_bmr, (void *)fc); 1245 } 1246 } else 1247 fc->status = FWBUSMGRDONE; 1248 1249 callout_reset(&fc->busprobe_callout, hz/4, 1250 (void *)fw_bus_probe, (void *)fc); 1251} 1252 1253/* 1254 * To probe devices on the IEEE1394 bus. 1255 */ 1256static void 1257fw_bus_probe(struct firewire_comm *fc) 1258{ 1259 int s; 1260 struct fw_device *fwdev; 1261 1262 s = splfw(); 1263 fc->status = FWBUSEXPLORE; 1264 1265 /* Invalidate all devices, just after bus reset. */ 1266 STAILQ_FOREACH(fwdev, &fc->devices, link) 1267 if (fwdev->status != FWDEVINVAL) { 1268 fwdev->status = FWDEVINVAL; 1269 fwdev->rcnt = 0; 1270 } 1271 1272 fc->ongonode = 0; 1273 fc->ongoaddr = CSRROMOFF; 1274 fc->ongodev = NULL; 1275 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1276 fw_bus_explore(fc); 1277 splx(s); 1278} 1279 1280/* 1281 * Find the self_id packet for a node, ignoring sequels. 1282 */ 1283static union fw_self_id * 1284fw_find_self_id(struct firewire_comm *fc, int node) 1285{ 1286 uint32_t i; 1287 union fw_self_id *s; 1288 1289 for (i = 0; i < fc->topology_map->self_id_count; i++) { 1290 s = &fc->topology_map->self_id[i]; 1291 if (s->p0.sequel) 1292 continue; 1293 if (s->p0.phy_id == node) 1294 return s; 1295 } 1296 return 0; 1297} 1298 1299/* 1300 * To collect device informations on the IEEE1394 bus. 1301 */ 1302static void 1303fw_bus_explore(struct firewire_comm *fc ) 1304{ 1305 int err = 0; 1306 struct fw_device *fwdev, *pfwdev, *tfwdev; 1307 uint32_t addr; 1308 struct fw_xfer *xfer; 1309 struct fw_pkt *fp; 1310 union fw_self_id *fwsid; 1311 1312 if(fc->status != FWBUSEXPLORE) 1313 return; 1314 1315loop: 1316 if(fc->ongonode == fc->nodeid) fc->ongonode++; 1317 1318 if(fc->ongonode > fc->max_node) goto done; 1319 if(fc->ongonode >= 0x3f) goto done; 1320 1321 /* check link */ 1322 /* XXX we need to check phy_id first */ 1323 fwsid = fw_find_self_id(fc, fc->ongonode); 1324 if (!fwsid || !fwsid->p0.link_active) { 1325 if (firewire_debug) 1326 printf("node%d: link down\n", fc->ongonode); 1327 fc->ongonode++; 1328 goto loop; 1329 } 1330 1331 if(fc->ongoaddr <= CSRROMOFF && 1332 fc->ongoeui.hi == 0xffffffff && 1333 fc->ongoeui.lo == 0xffffffff ){ 1334 fc->ongoaddr = CSRROMOFF; 1335 addr = 0xf0000000 | fc->ongoaddr; 1336 }else if(fc->ongoeui.hi == 0xffffffff ){ 1337 fc->ongoaddr = CSRROMOFF + 0xc; 1338 addr = 0xf0000000 | fc->ongoaddr; 1339 }else if(fc->ongoeui.lo == 0xffffffff ){ 1340 fc->ongoaddr = CSRROMOFF + 0x10; 1341 addr = 0xf0000000 | fc->ongoaddr; 1342 }else if(fc->ongodev == NULL){ 1343 STAILQ_FOREACH(fwdev, &fc->devices, link) 1344 if (FW_EUI64_EQUAL(fwdev->eui, fc->ongoeui)) 1345 break; 1346 if(fwdev != NULL){ 1347 fwdev->dst = fc->ongonode; 1348 fwdev->status = FWDEVINIT; 1349 fc->ongodev = fwdev; 1350 fc->ongoaddr = CSRROMOFF; 1351 addr = 0xf0000000 | fc->ongoaddr; 1352 goto dorequest; 1353 } 1354 fwdev = malloc(sizeof(struct fw_device), M_FW, 1355 M_NOWAIT | M_ZERO); 1356 if(fwdev == NULL) 1357 return; 1358 fwdev->fc = fc; 1359 fwdev->rommax = 0; 1360 fwdev->dst = fc->ongonode; 1361 fwdev->eui.hi = fc->ongoeui.hi; fwdev->eui.lo = fc->ongoeui.lo; 1362 fwdev->status = FWDEVINIT; 1363 fwdev->speed = fc->speed_map->speed[fc->nodeid][fc->ongonode]; 1364 1365 pfwdev = NULL; 1366 STAILQ_FOREACH(tfwdev, &fc->devices, link) { 1367 if (tfwdev->eui.hi > fwdev->eui.hi || 1368 (tfwdev->eui.hi == fwdev->eui.hi && 1369 tfwdev->eui.lo > fwdev->eui.lo)) 1370 break; 1371 pfwdev = tfwdev; 1372 } 1373 if (pfwdev == NULL) 1374 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link); 1375 else 1376 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link); 1377 1378 device_printf(fc->bdev, "New %s device ID:%08x%08x\n", 1379 linkspeed[fwdev->speed], 1380 fc->ongoeui.hi, fc->ongoeui.lo); 1381 1382 fc->ongodev = fwdev; 1383 fc->ongoaddr = CSRROMOFF; 1384 addr = 0xf0000000 | fc->ongoaddr; 1385 }else{ 1386 addr = 0xf0000000 | fc->ongoaddr; 1387 } 1388dorequest: 1389#if 0 1390 xfer = asyreqq(fc, FWSPD_S100, 0, 0, 1391 ((FWLOCALBUS | fc->ongonode) << 16) | 0xffff , addr, 1392 fw_bus_explore_callback); 1393 if(xfer == NULL) goto done; 1394#else 1395 xfer = fw_xfer_alloc(M_FWXFER); 1396 if(xfer == NULL){ 1397 goto done; 1398 } 1399 xfer->send.spd = 0; 1400 fp = &xfer->send.hdr; 1401 fp->mode.rreqq.dest_hi = 0xffff; 1402 fp->mode.rreqq.tlrt = 0; 1403 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1404 fp->mode.rreqq.pri = 0; 1405 fp->mode.rreqq.src = 0; 1406 fp->mode.rreqq.dst = FWLOCALBUS | fc->ongonode; 1407 fp->mode.rreqq.dest_lo = addr; 1408 xfer->hand = fw_bus_explore_callback; 1409 1410 if (firewire_debug) 1411 printf("node%d: explore addr=0x%x\n", 1412 fc->ongonode, fc->ongoaddr); 1413 err = fw_asyreq(fc, -1, xfer); 1414 if(err){ 1415 fw_xfer_free( xfer); 1416 return; 1417 } 1418#endif 1419 return; 1420done: 1421 /* fw_attach_devs */ 1422 fc->status = FWBUSEXPDONE; 1423 if (firewire_debug) 1424 printf("bus_explore done\n"); 1425 fw_attach_dev(fc); 1426 return; 1427 1428} 1429 1430/* Portable Async. request read quad */ 1431struct fw_xfer * 1432asyreqq(struct firewire_comm *fc, uint8_t spd, uint8_t tl, uint8_t rt, 1433 uint32_t addr_hi, uint32_t addr_lo, 1434 void (*hand) (struct fw_xfer*)) 1435{ 1436 struct fw_xfer *xfer; 1437 struct fw_pkt *fp; 1438 int err; 1439 1440 xfer = fw_xfer_alloc(M_FWXFER); 1441 if (xfer == NULL) 1442 return NULL; 1443 1444 xfer->send.spd = spd; /* XXX:min(spd, fc->spd) */ 1445 fp = &xfer->send.hdr; 1446 fp->mode.rreqq.dest_hi = addr_hi & 0xffff; 1447 if(tl & FWP_TL_VALID){ 1448 fp->mode.rreqq.tlrt = (tl & 0x3f) << 2; 1449 }else{ 1450 fp->mode.rreqq.tlrt = 0; 1451 } 1452 fp->mode.rreqq.tlrt |= rt & 0x3; 1453 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1454 fp->mode.rreqq.pri = 0; 1455 fp->mode.rreqq.src = 0; 1456 fp->mode.rreqq.dst = addr_hi >> 16; 1457 fp->mode.rreqq.dest_lo = addr_lo; 1458 xfer->hand = hand; 1459 1460 err = fw_asyreq(fc, -1, xfer); 1461 if(err){ 1462 fw_xfer_free( xfer); 1463 return NULL; 1464 } 1465 return xfer; 1466} 1467 1468/* 1469 * Callback for the IEEE1394 bus information collection. 1470 */ 1471static void 1472fw_bus_explore_callback(struct fw_xfer *xfer) 1473{ 1474 struct firewire_comm *fc; 1475 struct fw_pkt *sfp,*rfp; 1476 struct csrhdr *chdr; 1477 struct csrdir *csrd; 1478 struct csrreg *csrreg; 1479 uint32_t offset; 1480 1481 1482 if(xfer == NULL) { 1483 printf("xfer == NULL\n"); 1484 return; 1485 } 1486 fc = xfer->fc; 1487 1488 if (firewire_debug) 1489 printf("node%d: callback addr=0x%x\n", 1490 fc->ongonode, fc->ongoaddr); 1491 1492 if(xfer->resp != 0){ 1493 device_printf(fc->bdev, 1494 "bus_explore node=%d addr=0x%x resp=%d\n", 1495 fc->ongonode, fc->ongoaddr, xfer->resp); 1496 goto errnode; 1497 } 1498 1499 sfp = &xfer->send.hdr; 1500 rfp = &xfer->recv.hdr; 1501#if 0 1502 { 1503 uint32_t *qld; 1504 int i; 1505 qld = (uint32_t *)xfer->recv.buf; 1506 printf("len:%d\n", xfer->recv.len); 1507 for( i = 0 ; i <= xfer->recv.len && i < 32; i+= 4){ 1508 printf("0x%08x ", rfp->mode.ld[i/4]); 1509 if((i % 16) == 15) printf("\n"); 1510 } 1511 if((i % 16) != 15) printf("\n"); 1512 } 1513#endif 1514 if(fc->ongodev == NULL){ 1515 if(sfp->mode.rreqq.dest_lo == (0xf0000000 | CSRROMOFF)){ 1516 rfp->mode.rresq.data = ntohl(rfp->mode.rresq.data); 1517 chdr = (struct csrhdr *)(&rfp->mode.rresq.data); 1518/* If CSR is minimal confinguration, more investigation is not needed. */ 1519 if(chdr->info_len == 1){ 1520 if (firewire_debug) 1521 printf("node%d: minimal config\n", 1522 fc->ongonode); 1523 goto nextnode; 1524 }else{ 1525 fc->ongoaddr = CSRROMOFF + 0xc; 1526 } 1527 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0xc))){ 1528 fc->ongoeui.hi = ntohl(rfp->mode.rresq.data); 1529 fc->ongoaddr = CSRROMOFF + 0x10; 1530 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0x10))){ 1531 fc->ongoeui.lo = ntohl(rfp->mode.rresq.data); 1532 if (fc->ongoeui.hi == 0 && fc->ongoeui.lo == 0) { 1533 if (firewire_debug) 1534 printf("node%d: eui64 is zero.\n", 1535 fc->ongonode); 1536 goto nextnode; 1537 } 1538 fc->ongoaddr = CSRROMOFF; 1539 } 1540 }else{ 1541 if (fc->ongoaddr == CSRROMOFF && 1542 fc->ongodev->csrrom[0] == ntohl(rfp->mode.rresq.data)) { 1543 fc->ongodev->status = FWDEVATTACHED; 1544 goto nextnode; 1545 } 1546 fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4] = ntohl(rfp->mode.rresq.data); 1547 if(fc->ongoaddr > fc->ongodev->rommax){ 1548 fc->ongodev->rommax = fc->ongoaddr; 1549 } 1550 csrd = SLIST_FIRST(&fc->ongocsr); 1551 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1552 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1553 offset = CSRROMOFF; 1554 }else{ 1555 chdr = (struct csrhdr *)&fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]; 1556 offset = csrd->off; 1557 } 1558 if(fc->ongoaddr > (CSRROMOFF + 0x14) && fc->ongoaddr != offset){ 1559 csrreg = (struct csrreg *)&fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4]; 1560 if( csrreg->key == 0x81 || csrreg->key == 0xd1){ 1561 csrd = SLIST_FIRST(&fc->csrfree); 1562 if(csrd == NULL){ 1563 goto nextnode; 1564 }else{ 1565 csrd->ongoaddr = fc->ongoaddr; 1566 fc->ongoaddr += csrreg->val * 4; 1567 csrd->off = fc->ongoaddr; 1568 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1569 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1570 goto nextaddr; 1571 } 1572 } 1573 } 1574 fc->ongoaddr += 4; 1575 if(((fc->ongoaddr - offset)/4 > chdr->crc_len) && 1576 (fc->ongodev->rommax < 0x414)){ 1577 if(fc->ongodev->rommax <= 0x414){ 1578 csrd = SLIST_FIRST(&fc->csrfree); 1579 if(csrd == NULL) goto nextnode; 1580 csrd->off = fc->ongoaddr; 1581 csrd->ongoaddr = fc->ongoaddr; 1582 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1583 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1584 } 1585 goto nextaddr; 1586 } 1587 1588 while(((fc->ongoaddr - offset)/4 > chdr->crc_len)){ 1589 if(csrd == NULL){ 1590 goto nextnode; 1591 }; 1592 fc->ongoaddr = csrd->ongoaddr + 4; 1593 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1594 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1595 csrd = SLIST_FIRST(&fc->ongocsr); 1596 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1597 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1598 offset = CSRROMOFF; 1599 }else{ 1600 chdr = (struct csrhdr *)&(fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]); 1601 offset = csrd->off; 1602 } 1603 } 1604 if((fc->ongoaddr - CSRROMOFF) > CSRROMSIZE){ 1605 goto nextnode; 1606 } 1607 } 1608nextaddr: 1609 fw_xfer_free( xfer); 1610 fw_bus_explore(fc); 1611 return; 1612errnode: 1613 if (fc->ongodev != NULL) { 1614 fc->ongodev->status = FWDEVINVAL; 1615 /* Invalidate ROM */ 1616 fc->ongodev->csrrom[0] = 0; 1617 } 1618nextnode: 1619 fw_xfer_free( xfer); 1620 fc->ongonode++; 1621/* housekeeping work space */ 1622 fc->ongoaddr = CSRROMOFF; 1623 fc->ongodev = NULL; 1624 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1625 while((csrd = SLIST_FIRST(&fc->ongocsr)) != NULL){ 1626 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1627 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1628 } 1629 fw_bus_explore(fc); 1630 return; 1631} 1632 1633/* 1634 * To attach sub-devices layer onto IEEE1394 bus. 1635 */ 1636static void 1637fw_attach_dev(struct firewire_comm *fc) 1638{ 1639 struct fw_device *fwdev, *next; 1640 int i, err; 1641 device_t *devlistp; 1642 int devcnt; 1643 struct firewire_dev_comm *fdc; 1644 1645 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1646 next = STAILQ_NEXT(fwdev, link); 1647 if (fwdev->status == FWDEVINIT) { 1648 fwdev->status = FWDEVATTACHED; 1649 } else if (fwdev->status == FWDEVINVAL) { 1650 fwdev->rcnt ++; 1651 if (fwdev->rcnt > hold_count) { 1652 /* 1653 * Remove devices which have not been seen 1654 * for a while. 1655 */ 1656 STAILQ_REMOVE(&fc->devices, fwdev, fw_device, 1657 link); 1658 free(fwdev, M_FW); 1659 } 1660 } 1661 } 1662 1663 err = device_get_children(fc->bdev, &devlistp, &devcnt); 1664 if( err != 0 ) 1665 return; 1666 for( i = 0 ; i < devcnt ; i++){ 1667 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 1668 fdc = device_get_softc(devlistp[i]); 1669 if (fdc->post_explore != NULL) 1670 fdc->post_explore(fdc); 1671 } 1672 } 1673 free(devlistp, M_TEMP); 1674 1675 return; 1676} 1677 1678/* 1679 * To allocate unique transaction label. 1680 */ 1681static int 1682fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer) 1683{ 1684 u_int i; 1685 struct tlabel *tl, *tmptl; 1686 int s; 1687 static uint32_t label = 0; 1688 1689 s = splfw(); 1690 for( i = 0 ; i < 0x40 ; i ++){ 1691 label = (label + 1) & 0x3f; 1692 for(tmptl = STAILQ_FIRST(&fc->tlabels[label]); 1693 tmptl != NULL; tmptl = STAILQ_NEXT(tmptl, link)){ 1694 if (tmptl->xfer->send.hdr.mode.hdr.dst == 1695 xfer->send.hdr.mode.hdr.dst) 1696 break; 1697 } 1698 if(tmptl == NULL) { 1699 tl = malloc(sizeof(struct tlabel),M_FW,M_NOWAIT); 1700 if (tl == NULL) { 1701 splx(s); 1702 return (-1); 1703 } 1704 tl->xfer = xfer; 1705 STAILQ_INSERT_TAIL(&fc->tlabels[label], tl, link); 1706 splx(s); 1707 if (firewire_debug > 1) 1708 printf("fw_get_tlabel: dst=%d tl=%d\n", 1709 xfer->send.hdr.mode.hdr.dst, label); 1710 return(label); 1711 } 1712 } 1713 splx(s); 1714 1715 if (firewire_debug > 1) 1716 printf("fw_get_tlabel: no free tlabel\n"); 1717 return(-1); 1718} 1719 1720static void 1721fw_rcv_copy(struct fw_rcv_buf *rb) 1722{ 1723 struct fw_pkt *pkt; 1724 u_char *p; 1725 struct tcode_info *tinfo; 1726 u_int res, i, len, plen; 1727 1728 rb->xfer->recv.spd -= rb->spd; 1729 1730 pkt = (struct fw_pkt *)rb->vec->iov_base; 1731 tinfo = &rb->fc->tcode[pkt->mode.hdr.tcode]; 1732 1733 /* Copy header */ 1734 p = (u_char *)&rb->xfer->recv.hdr; 1735 bcopy(rb->vec->iov_base, p, tinfo->hdr_len); 1736 rb->vec->iov_base = (u_char *)rb->vec->iov_base + tinfo->hdr_len; 1737 rb->vec->iov_len -= tinfo->hdr_len; 1738 1739 /* Copy payload */ 1740 p = (u_char *)rb->xfer->recv.payload; 1741 res = rb->xfer->recv.pay_len; 1742 1743 /* special handling for RRESQ */ 1744 if (pkt->mode.hdr.tcode == FWTCODE_RRESQ && 1745 p != NULL && res >= sizeof(uint32_t)) { 1746 *(uint32_t *)p = pkt->mode.rresq.data; 1747 rb->xfer->recv.pay_len = sizeof(uint32_t); 1748 return; 1749 } 1750 1751 if ((tinfo->flag & FWTI_BLOCK_ASY) == 0) 1752 return; 1753 1754 plen = pkt->mode.rresb.len; 1755 1756 for (i = 0; i < rb->nvec; i++, rb->vec++) { 1757 len = MIN(rb->vec->iov_len, plen); 1758 if (res < len) { 1759 printf("rcv buffer(%d) is %d bytes short.\n", 1760 rb->xfer->recv.pay_len, len - res); 1761 len = res; 1762 } 1763 bcopy(rb->vec->iov_base, p, len); 1764 p += len; 1765 res -= len; 1766 plen -= len; 1767 if (res == 0 || plen == 0) 1768 break; 1769 } 1770 rb->xfer->recv.pay_len -= res; 1771 1772} 1773 1774/* 1775 * Generic packet receiving process. 1776 */ 1777void 1778fw_rcv(struct fw_rcv_buf *rb) 1779{ 1780 struct fw_pkt *fp, *resfp; 1781 struct fw_bind *bind; 1782 int tcode, s; 1783 int i, len, oldstate; 1784#if 0 1785 { 1786 uint32_t *qld; 1787 int i; 1788 qld = (uint32_t *)buf; 1789 printf("spd %d len:%d\n", spd, len); 1790 for( i = 0 ; i <= len && i < 32; i+= 4){ 1791 printf("0x%08x ", ntohl(qld[i/4])); 1792 if((i % 16) == 15) printf("\n"); 1793 } 1794 if((i % 16) != 15) printf("\n"); 1795 } 1796#endif 1797 fp = (struct fw_pkt *)rb->vec[0].iov_base; 1798 tcode = fp->mode.common.tcode; 1799 switch (tcode) { 1800 case FWTCODE_WRES: 1801 case FWTCODE_RRESQ: 1802 case FWTCODE_RRESB: 1803 case FWTCODE_LRES: 1804 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1805 fp->mode.hdr.tlrt >> 2); 1806 if(rb->xfer == NULL) { 1807 printf("fw_rcv: unknown response " 1808 "%s(%x) src=0x%x tl=0x%x rt=%d data=0x%x\n", 1809 tcode_str[tcode], tcode, 1810 fp->mode.hdr.src, 1811 fp->mode.hdr.tlrt >> 2, 1812 fp->mode.hdr.tlrt & 3, 1813 fp->mode.rresq.data); 1814#if 1 1815 printf("try ad-hoc work around!!\n"); 1816 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1817 (fp->mode.hdr.tlrt >> 2)^3); 1818 if (rb->xfer == NULL) { 1819 printf("no use...\n"); 1820 goto err; 1821 } 1822#else 1823 goto err; 1824#endif 1825 } 1826 fw_rcv_copy(rb); 1827 if (rb->xfer->recv.hdr.mode.wres.rtcode != RESP_CMP) 1828 rb->xfer->resp = EIO; 1829 else 1830 rb->xfer->resp = 0; 1831 /* make sure the packet is drained in AT queue */ 1832 oldstate = rb->xfer->state; 1833 rb->xfer->state = FWXF_RCVD; 1834 switch (oldstate) { 1835 case FWXF_SENT: 1836 fw_xfer_done(rb->xfer); 1837 break; 1838 case FWXF_START: 1839#if 0 1840 if (firewire_debug) 1841 printf("not sent yet tl=%x\n", rb->xfer->tl); 1842#endif 1843 break; 1844 default: 1845 printf("unexpected state %d\n", rb->xfer->state); 1846 } 1847 return; 1848 case FWTCODE_WREQQ: 1849 case FWTCODE_WREQB: 1850 case FWTCODE_RREQQ: 1851 case FWTCODE_RREQB: 1852 case FWTCODE_LREQ: 1853 bind = fw_bindlookup(rb->fc, fp->mode.rreqq.dest_hi, 1854 fp->mode.rreqq.dest_lo); 1855 if(bind == NULL){ 1856 printf("Unknown service addr 0x%04x:0x%08x %s(%x)" 1857#if defined(__DragonFly__) || __FreeBSD_version < 500000 1858 " src=0x%x data=%lx\n", 1859#else 1860 " src=0x%x data=%x\n", 1861#endif 1862 fp->mode.wreqq.dest_hi, fp->mode.wreqq.dest_lo, 1863 tcode_str[tcode], tcode, 1864 fp->mode.hdr.src, ntohl(fp->mode.wreqq.data)); 1865 if (rb->fc->status == FWBUSRESET) { 1866 printf("fw_rcv: cannot respond(bus reset)!\n"); 1867 goto err; 1868 } 1869 rb->xfer = fw_xfer_alloc(M_FWXFER); 1870 if(rb->xfer == NULL){ 1871 return; 1872 } 1873 rb->xfer->send.spd = rb->spd; 1874 rb->xfer->send.pay_len = 0; 1875 resfp = &rb->xfer->send.hdr; 1876 switch (tcode) { 1877 case FWTCODE_WREQQ: 1878 case FWTCODE_WREQB: 1879 resfp->mode.hdr.tcode = FWTCODE_WRES; 1880 break; 1881 case FWTCODE_RREQQ: 1882 resfp->mode.hdr.tcode = FWTCODE_RRESQ; 1883 break; 1884 case FWTCODE_RREQB: 1885 resfp->mode.hdr.tcode = FWTCODE_RRESB; 1886 break; 1887 case FWTCODE_LREQ: 1888 resfp->mode.hdr.tcode = FWTCODE_LRES; 1889 break; 1890 } 1891 resfp->mode.hdr.dst = fp->mode.hdr.src; 1892 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt; 1893 resfp->mode.hdr.pri = fp->mode.hdr.pri; 1894 resfp->mode.rresb.rtcode = RESP_ADDRESS_ERROR; 1895 resfp->mode.rresb.extcode = 0; 1896 resfp->mode.rresb.len = 0; 1897/* 1898 rb->xfer->hand = fw_asy_callback; 1899*/ 1900 rb->xfer->hand = fw_xfer_free; 1901 if(fw_asyreq(rb->fc, -1, rb->xfer)){ 1902 fw_xfer_free(rb->xfer); 1903 return; 1904 } 1905 goto err; 1906 } 1907 len = 0; 1908 for (i = 0; i < rb->nvec; i ++) 1909 len += rb->vec[i].iov_len; 1910 switch(bind->act_type){ 1911 case FWACT_XFER: 1912 /* splfw()?? */ 1913 rb->xfer = STAILQ_FIRST(&bind->xferlist); 1914 if (rb->xfer == NULL) { 1915 printf("Discard a packet for this bind.\n"); 1916 goto err; 1917 } 1918 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 1919 fw_rcv_copy(rb); 1920 rb->xfer->hand(rb->xfer); 1921 return; 1922 break; 1923 case FWACT_CH: 1924 if(rb->fc->ir[bind->sub]->queued >= 1925 rb->fc->ir[bind->sub]->maxq){ 1926 device_printf(rb->fc->bdev, 1927 "Discard a packet %x %d\n", 1928 bind->sub, 1929 rb->fc->ir[bind->sub]->queued); 1930 goto err; 1931 } 1932 rb->xfer = STAILQ_FIRST(&bind->xferlist); 1933 if (rb->xfer == NULL) { 1934 printf("Discard packet for this bind\n"); 1935 goto err; 1936 } 1937 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 1938 fw_rcv_copy(rb); 1939 s = splfw(); 1940 rb->fc->ir[bind->sub]->queued++; 1941 STAILQ_INSERT_TAIL(&rb->fc->ir[bind->sub]->q, 1942 rb->xfer, link); 1943 splx(s); 1944 1945 wakeup((caddr_t)rb->fc->ir[bind->sub]); 1946 1947 return; 1948 break; 1949 default: 1950 goto err; 1951 break; 1952 } 1953 break; 1954#if 0 /* shouldn't happen ?? or for GASP */ 1955 case FWTCODE_STREAM: 1956 { 1957 struct fw_xferq *xferq; 1958 1959 xferq = rb->fc->ir[sub]; 1960#if 0 1961 printf("stream rcv dma %d len %d off %d spd %d\n", 1962 sub, len, off, spd); 1963#endif 1964 if(xferq->queued >= xferq->maxq) { 1965 printf("receive queue is full\n"); 1966 goto err; 1967 } 1968 /* XXX get xfer from xfer queue, we don't need copy for 1969 per packet mode */ 1970 rb->xfer = fw_xfer_alloc_buf(M_FWXFER, 0, /* XXX */ 1971 vec[0].iov_len); 1972 if (rb->xfer == NULL) goto err; 1973 fw_rcv_copy(rb) 1974 s = splfw(); 1975 xferq->queued++; 1976 STAILQ_INSERT_TAIL(&xferq->q, rb->xfer, link); 1977 splx(s); 1978 sc = device_get_softc(rb->fc->bdev); 1979#if defined(__DragonFly__) || __FreeBSD_version < 500000 1980 if (&xferq->rsel.si_pid != 0) 1981#else 1982 if (SEL_WAITING(&xferq->rsel)) 1983#endif 1984 selwakeuppri(&xferq->rsel, FWPRI); 1985 if (xferq->flag & FWXFERQ_WAKEUP) { 1986 xferq->flag &= ~FWXFERQ_WAKEUP; 1987 wakeup((caddr_t)xferq); 1988 } 1989 if (xferq->flag & FWXFERQ_HANDLER) { 1990 xferq->hand(xferq); 1991 } 1992 return; 1993 break; 1994 } 1995#endif 1996 default: 1997 printf("fw_rcv: unknow tcode %d\n", tcode); 1998 break; 1999 } 2000err: 2001 return; 2002} 2003 2004/* 2005 * Post process for Bus Manager election process. 2006 */ 2007static void 2008fw_try_bmr_callback(struct fw_xfer *xfer) 2009{ 2010 struct firewire_comm *fc; 2011 int bmr; 2012 2013 if (xfer == NULL) 2014 return; 2015 fc = xfer->fc; 2016 if (xfer->resp != 0) 2017 goto error; 2018 if (xfer->recv.payload == NULL) 2019 goto error; 2020 if (xfer->recv.hdr.mode.lres.rtcode != FWRCODE_COMPLETE) 2021 goto error; 2022 2023 bmr = ntohl(xfer->recv.payload[0]); 2024 if (bmr == 0x3f) 2025 bmr = fc->nodeid; 2026 2027 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f); 2028 fw_xfer_free_buf(xfer); 2029 fw_bmr(fc); 2030 return; 2031 2032error: 2033 device_printf(fc->bdev, "bus manager election failed\n"); 2034 fw_xfer_free_buf(xfer); 2035} 2036 2037 2038/* 2039 * To candidate Bus Manager election process. 2040 */ 2041static void 2042fw_try_bmr(void *arg) 2043{ 2044 struct fw_xfer *xfer; 2045 struct firewire_comm *fc = (struct firewire_comm *)arg; 2046 struct fw_pkt *fp; 2047 int err = 0; 2048 2049 xfer = fw_xfer_alloc_buf(M_FWXFER, 8, 4); 2050 if(xfer == NULL){ 2051 return; 2052 } 2053 xfer->send.spd = 0; 2054 fc->status = FWBUSMGRELECT; 2055 2056 fp = &xfer->send.hdr; 2057 fp->mode.lreq.dest_hi = 0xffff; 2058 fp->mode.lreq.tlrt = 0; 2059 fp->mode.lreq.tcode = FWTCODE_LREQ; 2060 fp->mode.lreq.pri = 0; 2061 fp->mode.lreq.src = 0; 2062 fp->mode.lreq.len = 8; 2063 fp->mode.lreq.extcode = EXTCODE_CMP_SWAP; 2064 fp->mode.lreq.dst = FWLOCALBUS | fc->irm; 2065 fp->mode.lreq.dest_lo = 0xf0000000 | BUS_MGR_ID; 2066 xfer->send.payload[0] = htonl(0x3f); 2067 xfer->send.payload[1] = htonl(fc->nodeid); 2068 xfer->hand = fw_try_bmr_callback; 2069 2070 err = fw_asyreq(fc, -1, xfer); 2071 if(err){ 2072 fw_xfer_free_buf(xfer); 2073 return; 2074 } 2075 return; 2076} 2077 2078#ifdef FW_VMACCESS 2079/* 2080 * Software implementation for physical memory block access. 2081 * XXX:Too slow, usef for debug purpose only. 2082 */ 2083static void 2084fw_vmaccess(struct fw_xfer *xfer){ 2085 struct fw_pkt *rfp, *sfp = NULL; 2086 uint32_t *ld = (uint32_t *)xfer->recv.buf; 2087 2088 printf("vmaccess spd:%2x len:%03x data:%08x %08x %08x %08x\n", 2089 xfer->spd, xfer->recv.len, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 2090 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 2091 if(xfer->resp != 0){ 2092 fw_xfer_free( xfer); 2093 return; 2094 } 2095 if(xfer->recv.buf == NULL){ 2096 fw_xfer_free( xfer); 2097 return; 2098 } 2099 rfp = (struct fw_pkt *)xfer->recv.buf; 2100 switch(rfp->mode.hdr.tcode){ 2101 /* XXX need fix for 64bit arch */ 2102 case FWTCODE_WREQB: 2103 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2104 xfer->send.len = 12; 2105 sfp = (struct fw_pkt *)xfer->send.buf; 2106 bcopy(rfp->mode.wreqb.payload, 2107 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len)); 2108 sfp->mode.wres.tcode = FWTCODE_WRES; 2109 sfp->mode.wres.rtcode = 0; 2110 break; 2111 case FWTCODE_WREQQ: 2112 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2113 xfer->send.len = 12; 2114 sfp->mode.wres.tcode = FWTCODE_WRES; 2115 *((uint32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data; 2116 sfp->mode.wres.rtcode = 0; 2117 break; 2118 case FWTCODE_RREQB: 2119 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_FW, M_NOWAIT); 2120 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len); 2121 sfp = (struct fw_pkt *)xfer->send.buf; 2122 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo), 2123 sfp->mode.rresb.payload, (uint16_t)ntohs(rfp->mode.rreqb.len)); 2124 sfp->mode.rresb.tcode = FWTCODE_RRESB; 2125 sfp->mode.rresb.len = rfp->mode.rreqb.len; 2126 sfp->mode.rresb.rtcode = 0; 2127 sfp->mode.rresb.extcode = 0; 2128 break; 2129 case FWTCODE_RREQQ: 2130 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 2131 xfer->send.len = 16; 2132 sfp = (struct fw_pkt *)xfer->send.buf; 2133 sfp->mode.rresq.data = *(uint32_t *)(ntohl(rfp->mode.rreqq.dest_lo)); 2134 sfp->mode.wres.tcode = FWTCODE_RRESQ; 2135 sfp->mode.rresb.rtcode = 0; 2136 break; 2137 default: 2138 fw_xfer_free( xfer); 2139 return; 2140 } 2141 sfp->mode.hdr.dst = rfp->mode.hdr.src; 2142 xfer->dst = ntohs(rfp->mode.hdr.src); 2143 xfer->hand = fw_xfer_free; 2144 2145 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt; 2146 sfp->mode.hdr.pri = 0; 2147 2148 fw_asyreq(xfer->fc, -1, xfer); 2149/**/ 2150 return; 2151} 2152#endif 2153 2154/* 2155 * CRC16 check-sum for IEEE1394 register blocks. 2156 */ 2157uint16_t 2158fw_crc16(uint32_t *ptr, uint32_t len){ 2159 uint32_t i, sum, crc = 0; 2160 int shift; 2161 len = (len + 3) & ~3; 2162 for(i = 0 ; i < len ; i+= 4){ 2163 for( shift = 28 ; shift >= 0 ; shift -= 4){ 2164 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf; 2165 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum; 2166 } 2167 crc &= 0xffff; 2168 } 2169 return((uint16_t) crc); 2170} 2171 2172static int 2173fw_bmr(struct firewire_comm *fc) 2174{ 2175 struct fw_device fwdev; 2176 union fw_self_id *self_id; 2177 int cmstr; 2178 uint32_t quad; 2179 2180 /* Check to see if the current root node is cycle master capable */ 2181 self_id = fw_find_self_id(fc, fc->max_node); 2182 if (fc->max_node > 0) { 2183 /* XXX check cmc bit of businfo block rather than contender */ 2184 if (self_id->p0.link_active && self_id->p0.contender) 2185 cmstr = fc->max_node; 2186 else { 2187 device_printf(fc->bdev, 2188 "root node is not cycle master capable\n"); 2189 /* XXX shall we be the cycle master? */ 2190 cmstr = fc->nodeid; 2191 /* XXX need bus reset */ 2192 } 2193 } else 2194 cmstr = -1; 2195 2196 device_printf(fc->bdev, "bus manager %d ", CSRARC(fc, BUS_MGR_ID)); 2197 if(CSRARC(fc, BUS_MGR_ID) != fc->nodeid) { 2198 /* We are not the bus manager */ 2199 printf("\n"); 2200 return(0); 2201 } 2202 printf("(me)\n"); 2203 2204 /* Optimize gapcount */ 2205 if(fc->max_hop <= MAX_GAPHOP ) 2206 fw_phy_config(fc, cmstr, gap_cnt[fc->max_hop]); 2207 /* If we are the cycle master, nothing to do */ 2208 if (cmstr == fc->nodeid || cmstr == -1) 2209 return 0; 2210 /* Bus probe has not finished, make dummy fwdev for cmstr */ 2211 bzero(&fwdev, sizeof(fwdev)); 2212 fwdev.fc = fc; 2213 fwdev.dst = cmstr; 2214 fwdev.speed = 0; 2215 fwdev.maxrec = 8; /* 512 */ 2216 fwdev.status = FWDEVINIT; 2217 /* Set cmstr bit on the cycle master */ 2218 quad = htonl(1 << 8); 2219 fwmem_write_quad(&fwdev, NULL, 0/*spd*/, 2220 0xffff, 0xf0000000 | STATE_SET, &quad, fw_asy_callback_free); 2221 2222 return 0; 2223} 2224 2225static int 2226fw_modevent(module_t mode, int type, void *data) 2227{ 2228 int err = 0; 2229#if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2230 static eventhandler_tag fwdev_ehtag = NULL; 2231#endif 2232 2233 switch (type) { 2234 case MOD_LOAD: 2235#if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2236 fwdev_ehtag = EVENTHANDLER_REGISTER(dev_clone, 2237 fwdev_clone, 0, 1000); 2238#endif 2239 break; 2240 case MOD_UNLOAD: 2241#if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2242 if (fwdev_ehtag != NULL) 2243 EVENTHANDLER_DEREGISTER(dev_clone, fwdev_ehtag); 2244#endif 2245 break; 2246 case MOD_SHUTDOWN: 2247 break; 2248 default: 2249 return (EOPNOTSUPP); 2250 } 2251 return (err); 2252} 2253 2254 2255#ifdef __DragonFly__ 2256DECLARE_DUMMY_MODULE(firewire); 2257#endif 2258DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,fw_modevent,0); 2259MODULE_VERSION(firewire, 1); 2260