firewire.c revision 130460
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 130460 2004-06-14 09:34:20Z dfr $ 35 * 36 */ 37 38#include <sys/param.h> 39#include <sys/systm.h> 40#include <sys/types.h> 41 42#include <sys/kernel.h> 43#include <sys/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->act.hand == NULL){ 208 printf("act.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 xfer->retry_req = fw_asybusy; 261 262 fw_asystart(xfer); 263 return err; 264} 265/* 266 * Wakeup blocked process. 267 */ 268void 269fw_asy_callback(struct fw_xfer *xfer){ 270 wakeup(xfer); 271 return; 272} 273/* 274 * Postpone to later retry. 275 */ 276void fw_asybusy(struct fw_xfer *xfer){ 277 printf("fw_asybusy\n"); 278/* 279 xfer->ch = timeout((timeout_t *)fw_asystart, (void *)xfer, 20000); 280*/ 281#if 0 282 DELAY(20000); 283#endif 284 fw_asystart(xfer); 285 return; 286} 287 288/* 289 * Async. request with given xfer structure. 290 */ 291static void 292fw_asystart(struct fw_xfer *xfer) 293{ 294 struct firewire_comm *fc = xfer->fc; 295 int s; 296 if(xfer->retry++ >= fc->max_asyretry){ 297 device_printf(fc->bdev, "max_asyretry exceeded\n"); 298 xfer->resp = EBUSY; 299 xfer->state = FWXF_BUSY; 300 xfer->act.hand(xfer); 301 return; 302 } 303#if 0 /* XXX allow bus explore packets only after bus rest */ 304 if (fc->status < FWBUSEXPLORE) { 305 xfer->resp = EAGAIN; 306 xfer->state = FWXF_BUSY; 307 if (xfer->act.hand != NULL) 308 xfer->act.hand(xfer); 309 return; 310 } 311#endif 312 microtime(&xfer->tv); 313 s = splfw(); 314 xfer->state = FWXF_INQ; 315 STAILQ_INSERT_TAIL(&xfer->q->q, xfer, link); 316 xfer->q->queued ++; 317 splx(s); 318 /* XXX just queue for mbuf */ 319 if (xfer->mbuf == NULL) 320 xfer->q->start(fc); 321 return; 322} 323 324static void 325firewire_identify(driver_t *driver, device_t parent) 326{ 327 BUS_ADD_CHILD(parent, 0, "firewire", -1); 328} 329 330static int 331firewire_probe(device_t dev) 332{ 333 device_set_desc(dev, "IEEE1394(FireWire) bus"); 334 return (0); 335} 336 337static void 338firewire_xfer_timeout(struct firewire_comm *fc) 339{ 340 struct fw_xfer *xfer; 341 struct tlabel *tl; 342 struct timeval tv; 343 struct timeval split_timeout; 344 int i, s; 345 346 split_timeout.tv_sec = 0; 347 split_timeout.tv_usec = 200 * 1000; /* 200 msec */ 348 349 microtime(&tv); 350 timevalsub(&tv, &split_timeout); 351 352 s = splfw(); 353 for (i = 0; i < 0x40; i ++) { 354 while ((tl = STAILQ_FIRST(&fc->tlabels[i])) != NULL) { 355 xfer = tl->xfer; 356 if (timevalcmp(&xfer->tv, &tv, >)) 357 /* the rests are newer than this */ 358 break; 359 if (xfer->state == FWXF_START) 360 /* not sent yet */ 361 break; 362 device_printf(fc->bdev, 363 "split transaction timeout dst=0x%x tl=0x%x state=%d\n", 364 xfer->send.hdr.mode.hdr.dst, i, xfer->state); 365 xfer->resp = ETIMEDOUT; 366 STAILQ_REMOVE_HEAD(&fc->tlabels[i], link); 367 fw_xfer_done(xfer); 368 } 369 } 370 splx(s); 371} 372 373#define WATCHDOC_HZ 10 374static void 375firewire_watchdog(void *arg) 376{ 377 struct firewire_comm *fc; 378 static int watchdoc_clock = 0; 379 380 fc = (struct firewire_comm *)arg; 381 382 /* 383 * At boot stage, the device interrupt is disabled and 384 * We encounter a timeout easily. To avoid this, 385 * ignore clock interrupt for a while. 386 */ 387 if (watchdoc_clock > WATCHDOC_HZ * 15) { 388 firewire_xfer_timeout(fc); 389 fc->timeout(fc); 390 } else 391 watchdoc_clock ++; 392 393 callout_reset(&fc->timeout_callout, hz / WATCHDOC_HZ, 394 (void *)firewire_watchdog, (void *)fc); 395} 396 397/* 398 * The attach routine. 399 */ 400static int 401firewire_attach(device_t dev) 402{ 403 int unit; 404 struct firewire_softc *sc = device_get_softc(dev); 405 device_t pa = device_get_parent(dev); 406 struct firewire_comm *fc; 407 408 fc = (struct firewire_comm *)device_get_softc(pa); 409 sc->fc = fc; 410 fc->status = FWBUSNOTREADY; 411 412 unit = device_get_unit(dev); 413 if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA; 414 415 fwdev_makedev(sc); 416 417 CALLOUT_INIT(&sc->fc->timeout_callout); 418 CALLOUT_INIT(&sc->fc->bmr_callout); 419 CALLOUT_INIT(&sc->fc->retry_probe_callout); 420 CALLOUT_INIT(&sc->fc->busprobe_callout); 421 422 callout_reset(&sc->fc->timeout_callout, hz, 423 (void *)firewire_watchdog, (void *)sc->fc); 424 425 /* Locate our children */ 426 bus_generic_probe(dev); 427 428 /* launch attachement of the added children */ 429 bus_generic_attach(dev); 430 431 /* bus_reset */ 432 fw_busreset(fc); 433 fc->ibr(fc); 434 435 return 0; 436} 437 438/* 439 * Attach it as child. 440 */ 441static device_t 442firewire_add_child(device_t dev, int order, const char *name, int unit) 443{ 444 device_t child; 445 struct firewire_softc *sc; 446 447 sc = (struct firewire_softc *)device_get_softc(dev); 448 child = device_add_child(dev, name, unit); 449 if (child) { 450 device_set_ivars(child, sc->fc); 451 device_probe_and_attach(child); 452 } 453 454 return child; 455} 456 457static int 458firewire_resume(device_t dev) 459{ 460 struct firewire_softc *sc; 461 462 sc = (struct firewire_softc *)device_get_softc(dev); 463 sc->fc->status = FWBUSNOTREADY; 464 465 bus_generic_resume(dev); 466 467 return(0); 468} 469 470/* 471 * Dettach it. 472 */ 473static int 474firewire_detach(device_t dev) 475{ 476 struct firewire_softc *sc; 477 struct csrdir *csrd, *next; 478 struct fw_device *fwdev, *fwdev_next; 479 int err; 480 481 sc = (struct firewire_softc *)device_get_softc(dev); 482 if ((err = fwdev_destroydev(sc)) != 0) 483 return err; 484 485 if ((err = bus_generic_detach(dev)) != 0) 486 return err; 487 488 callout_stop(&sc->fc->timeout_callout); 489 callout_stop(&sc->fc->bmr_callout); 490 callout_stop(&sc->fc->retry_probe_callout); 491 callout_stop(&sc->fc->busprobe_callout); 492 493 /* XXX xfree_free and untimeout on all xfers */ 494 for (fwdev = STAILQ_FIRST(&sc->fc->devices); fwdev != NULL; 495 fwdev = fwdev_next) { 496 fwdev_next = STAILQ_NEXT(fwdev, link); 497 free(fwdev, M_FW); 498 } 499 for (csrd = SLIST_FIRST(&sc->fc->csrfree); csrd != NULL; csrd = next) { 500 next = SLIST_NEXT(csrd, link); 501 free(csrd, M_FW); 502 } 503 free(sc->fc->topology_map, M_FW); 504 free(sc->fc->speed_map, M_FW); 505 free(sc->fc->crom_src_buf, M_FW); 506 return(0); 507} 508#if 0 509static int 510firewire_shutdown( device_t dev ) 511{ 512 return 0; 513} 514#endif 515 516 517static void 518fw_xferq_drain(struct fw_xferq *xferq) 519{ 520 struct fw_xfer *xfer; 521 522 while ((xfer = STAILQ_FIRST(&xferq->q)) != NULL) { 523 STAILQ_REMOVE_HEAD(&xferq->q, link); 524 xferq->queued --; 525 xfer->resp = EAGAIN; 526 fw_xfer_done(xfer); 527 } 528} 529 530void 531fw_drain_txq(struct firewire_comm *fc) 532{ 533 int i; 534 535 fw_xferq_drain(fc->atq); 536 fw_xferq_drain(fc->ats); 537 for(i = 0; i < fc->nisodma; i++) 538 fw_xferq_drain(fc->it[i]); 539} 540 541static void 542fw_reset_csr(struct firewire_comm *fc) 543{ 544 int i; 545 546 CSRARC(fc, STATE_CLEAR) 547 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 548 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 549 CSRARC(fc, NODE_IDS) = 0x3f; 550 551 CSRARC(fc, TOPO_MAP + 8) = 0; 552 fc->irm = -1; 553 554 fc->max_node = -1; 555 556 for(i = 2; i < 0x100/4 - 2 ; i++){ 557 CSRARC(fc, SPED_MAP + i * 4) = 0; 558 } 559 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 560 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 561 CSRARC(fc, RESET_START) = 0; 562 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0; 563 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19; 564 CSRARC(fc, CYCLE_TIME) = 0x0; 565 CSRARC(fc, BUS_TIME) = 0x0; 566 CSRARC(fc, BUS_MGR_ID) = 0x3f; 567 CSRARC(fc, BANDWIDTH_AV) = 4915; 568 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff; 569 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff; 570 CSRARC(fc, IP_CHANNELS) = (1 << 31); 571 572 CSRARC(fc, CONF_ROM) = 0x04 << 24; 573 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */ 574 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 | 575 1 << 28 | 0xff << 16 | 0x09 << 8; 576 CSRARC(fc, CONF_ROM + 0xc) = 0; 577 578/* DV depend CSRs see blue book */ 579 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON; 580 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON; 581 582 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 ); 583 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 584} 585 586static void 587fw_init_crom(struct firewire_comm *fc) 588{ 589 struct crom_src *src; 590 591 fc->crom_src_buf = (struct crom_src_buf *) 592 malloc(sizeof(struct crom_src_buf), M_FW, M_WAITOK | M_ZERO); 593 if (fc->crom_src_buf == NULL) 594 return; 595 596 src = &fc->crom_src_buf->src; 597 bzero(src, sizeof(struct crom_src)); 598 599 /* BUS info sample */ 600 src->hdr.info_len = 4; 601 602 src->businfo.bus_name = CSR_BUS_NAME_IEEE1394; 603 604 src->businfo.irmc = 1; 605 src->businfo.cmc = 1; 606 src->businfo.isc = 1; 607 src->businfo.bmc = 1; 608 src->businfo.pmc = 0; 609 src->businfo.cyc_clk_acc = 100; 610 src->businfo.max_rec = fc->maxrec; 611 src->businfo.max_rom = MAXROM_4; 612 src->businfo.generation = 1; 613 src->businfo.link_spd = fc->speed; 614 615 src->businfo.eui64.hi = fc->eui.hi; 616 src->businfo.eui64.lo = fc->eui.lo; 617 618 STAILQ_INIT(&src->chunk_list); 619 620 fc->crom_src = src; 621 fc->crom_root = &fc->crom_src_buf->root; 622} 623 624static void 625fw_reset_crom(struct firewire_comm *fc) 626{ 627 struct crom_src_buf *buf; 628 struct crom_src *src; 629 struct crom_chunk *root; 630 631 if (fc->crom_src_buf == NULL) 632 fw_init_crom(fc); 633 634 buf = fc->crom_src_buf; 635 src = fc->crom_src; 636 root = fc->crom_root; 637 638 STAILQ_INIT(&src->chunk_list); 639 640 bzero(root, sizeof(struct crom_chunk)); 641 crom_add_chunk(src, NULL, root, 0); 642 crom_add_entry(root, CSRKEY_NCAP, 0x0083c0); /* XXX */ 643 /* private company_id */ 644 crom_add_entry(root, CSRKEY_VENDOR, CSRVAL_VENDOR_PRIVATE); 645#ifdef __DragonFly__ 646 crom_add_simple_text(src, root, &buf->vendor, "DragonFly Project"); 647 crom_add_entry(root, CSRKEY_HW, __DragonFly_cc_version); 648#else 649 crom_add_simple_text(src, root, &buf->vendor, "FreeBSD Project"); 650 crom_add_entry(root, CSRKEY_HW, __FreeBSD_version); 651#endif 652 crom_add_simple_text(src, root, &buf->hw, hostname); 653} 654 655/* 656 * Called after bus reset. 657 */ 658void 659fw_busreset(struct firewire_comm *fc) 660{ 661 struct firewire_dev_comm *fdc; 662 struct crom_src *src; 663 device_t *devlistp; 664 void *newrom; 665 int i, devcnt; 666 667 switch(fc->status){ 668 case FWBUSMGRELECT: 669 callout_stop(&fc->bmr_callout); 670 break; 671 default: 672 break; 673 } 674 fc->status = FWBUSRESET; 675 fw_reset_csr(fc); 676 fw_reset_crom(fc); 677 678 if (device_get_children(fc->bdev, &devlistp, &devcnt) == 0) { 679 for( i = 0 ; i < devcnt ; i++) 680 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 681 fdc = device_get_softc(devlistp[i]); 682 if (fdc->post_busreset != NULL) 683 fdc->post_busreset(fdc); 684 } 685 free(devlistp, M_TEMP); 686 } 687 688 newrom = malloc(CROMSIZE, M_FW, M_NOWAIT | M_ZERO); 689 src = &fc->crom_src_buf->src; 690 crom_load(src, (uint32_t *)newrom, CROMSIZE); 691 if (bcmp(newrom, fc->config_rom, CROMSIZE) != 0) { 692 /* bump generation and reload */ 693 src->businfo.generation ++; 694 /* generation must be between 0x2 and 0xF */ 695 if (src->businfo.generation < 2) 696 src->businfo.generation ++; 697 crom_load(src, (uint32_t *)newrom, CROMSIZE); 698 bcopy(newrom, (void *)fc->config_rom, CROMSIZE); 699 } 700 free(newrom, M_FW); 701} 702 703/* Call once after reboot */ 704void fw_init(struct firewire_comm *fc) 705{ 706 int i; 707 struct csrdir *csrd; 708#ifdef FW_VMACCESS 709 struct fw_xfer *xfer; 710 struct fw_bind *fwb; 711#endif 712 713 fc->max_asyretry = FW_MAXASYRTY; 714 715 fc->arq->queued = 0; 716 fc->ars->queued = 0; 717 fc->atq->queued = 0; 718 fc->ats->queued = 0; 719 720 fc->arq->buf = NULL; 721 fc->ars->buf = NULL; 722 fc->atq->buf = NULL; 723 fc->ats->buf = NULL; 724 725 fc->arq->flag = 0; 726 fc->ars->flag = 0; 727 fc->atq->flag = 0; 728 fc->ats->flag = 0; 729 730 STAILQ_INIT(&fc->atq->q); 731 STAILQ_INIT(&fc->ats->q); 732 733 for( i = 0 ; i < fc->nisodma ; i ++ ){ 734 fc->it[i]->queued = 0; 735 fc->ir[i]->queued = 0; 736 737 fc->it[i]->start = NULL; 738 fc->ir[i]->start = NULL; 739 740 fc->it[i]->buf = NULL; 741 fc->ir[i]->buf = NULL; 742 743 fc->it[i]->flag = FWXFERQ_STREAM; 744 fc->ir[i]->flag = FWXFERQ_STREAM; 745 746 STAILQ_INIT(&fc->it[i]->q); 747 STAILQ_INIT(&fc->ir[i]->q); 748 749 STAILQ_INIT(&fc->it[i]->binds); 750 STAILQ_INIT(&fc->ir[i]->binds); 751 } 752 753 fc->arq->maxq = FWMAXQUEUE; 754 fc->ars->maxq = FWMAXQUEUE; 755 fc->atq->maxq = FWMAXQUEUE; 756 fc->ats->maxq = FWMAXQUEUE; 757 758 for( i = 0 ; i < fc->nisodma ; i++){ 759 fc->ir[i]->maxq = FWMAXQUEUE; 760 fc->it[i]->maxq = FWMAXQUEUE; 761 } 762/* Initialize csr registers */ 763 fc->topology_map = (struct fw_topology_map *)malloc( 764 sizeof(struct fw_topology_map), 765 M_FW, M_NOWAIT | M_ZERO); 766 fc->speed_map = (struct fw_speed_map *)malloc( 767 sizeof(struct fw_speed_map), 768 M_FW, M_NOWAIT | M_ZERO); 769 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16; 770 CSRARC(fc, TOPO_MAP + 4) = 1; 771 CSRARC(fc, SPED_MAP) = 0x3f1 << 16; 772 CSRARC(fc, SPED_MAP + 4) = 1; 773 774 STAILQ_INIT(&fc->devices); 775 776/* Initialize csr ROM work space */ 777 SLIST_INIT(&fc->ongocsr); 778 SLIST_INIT(&fc->csrfree); 779 for( i = 0 ; i < FWMAXCSRDIR ; i++){ 780 csrd = (struct csrdir *) malloc(sizeof(struct csrdir), M_FW,M_NOWAIT); 781 if(csrd == NULL) break; 782 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 783 } 784 785/* Initialize Async handlers */ 786 STAILQ_INIT(&fc->binds); 787 for( i = 0 ; i < 0x40 ; i++){ 788 STAILQ_INIT(&fc->tlabels[i]); 789 } 790 791/* DV depend CSRs see blue book */ 792#if 0 793 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */ 794 CSRARC(fc, oPCR) = 0x8000007a; 795 for(i = 4 ; i < 0x7c/4 ; i+=4){ 796 CSRARC(fc, i + oPCR) = 0x8000007a; 797 } 798 799 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */ 800 CSRARC(fc, iPCR) = 0x803f0000; 801 for(i = 4 ; i < 0x7c/4 ; i+=4){ 802 CSRARC(fc, i + iPCR) = 0x0; 803 } 804#endif 805 806 fc->crom_src_buf = NULL; 807 808#ifdef FW_VMACCESS 809 xfer = fw_xfer_alloc(); 810 if(xfer == NULL) return; 811 812 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_FW, M_NOWAIT); 813 if(fwb == NULL){ 814 fw_xfer_free(xfer); 815 } 816 xfer->act.hand = fw_vmaccess; 817 xfer->fc = fc; 818 xfer->sc = NULL; 819 820 fwb->start_hi = 0x2; 821 fwb->start_lo = 0; 822 fwb->addrlen = 0xffffffff; 823 fwb->xfer = xfer; 824 fw_bindadd(fc, fwb); 825#endif 826} 827 828#define BIND_CMP(addr, fwb) (((addr) < (fwb)->start)?-1:\ 829 ((fwb)->end < (addr))?1:0) 830 831/* 832 * To lookup bound process from IEEE1394 address. 833 */ 834struct fw_bind * 835fw_bindlookup(struct firewire_comm *fc, uint16_t dest_hi, uint32_t dest_lo) 836{ 837 u_int64_t addr; 838 struct fw_bind *tfw; 839 840 addr = ((u_int64_t)dest_hi << 32) | dest_lo; 841 STAILQ_FOREACH(tfw, &fc->binds, fclist) 842 if (tfw->act_type != FWACT_NULL && BIND_CMP(addr, tfw) == 0) 843 return(tfw); 844 return(NULL); 845} 846 847/* 848 * To bind IEEE1394 address block to process. 849 */ 850int 851fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb) 852{ 853 struct fw_bind *tfw, *prev = NULL; 854 855 if (fwb->start > fwb->end) { 856 printf("%s: invalid range\n", __func__); 857 return EINVAL; 858 } 859 860 STAILQ_FOREACH(tfw, &fc->binds, fclist) { 861 if (fwb->end < tfw->start) 862 break; 863 prev = tfw; 864 } 865 if (prev == NULL) { 866 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 867 goto out; 868 } 869 if (prev->end < fwb->start) { 870 STAILQ_INSERT_AFTER(&fc->binds, prev, fwb, fclist); 871 goto out; 872 } 873 874 printf("%s: bind failed\n", __func__); 875 return (EBUSY); 876 877out: 878 if (fwb->act_type == FWACT_CH) 879 STAILQ_INSERT_HEAD(&fc->ir[fwb->sub]->binds, fwb, chlist); 880 return (0); 881} 882 883/* 884 * To free IEEE1394 address block. 885 */ 886int 887fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb) 888{ 889#if 0 890 struct fw_xfer *xfer, *next; 891#endif 892 struct fw_bind *tfw; 893 int s; 894 895 s = splfw(); 896 STAILQ_FOREACH(tfw, &fc->binds, fclist) 897 if (tfw == fwb) { 898 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist); 899 goto found; 900 } 901 902 printf("%s: no such binding\n", __func__); 903 splx(s); 904 return (1); 905found: 906#if 0 907 /* shall we do this? */ 908 for (xfer = STAILQ_FIRST(&fwb->xferlist); xfer != NULL; xfer = next) { 909 next = STAILQ_NEXT(xfer, link); 910 fw_xfer_free(xfer); 911 } 912 STAILQ_INIT(&fwb->xferlist); 913#endif 914 915 splx(s); 916 return 0; 917} 918 919/* 920 * To free transaction label. 921 */ 922static void 923fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer) 924{ 925 struct tlabel *tl; 926 int s = splfw(); 927 928 for( tl = STAILQ_FIRST(&fc->tlabels[xfer->tl]); tl != NULL; 929 tl = STAILQ_NEXT(tl, link)){ 930 if(tl->xfer == xfer){ 931 STAILQ_REMOVE(&fc->tlabels[xfer->tl], tl, tlabel, link); 932 free(tl, M_FW); 933 splx(s); 934 return; 935 } 936 } 937 splx(s); 938 return; 939} 940 941/* 942 * To obtain XFER structure by transaction label. 943 */ 944static struct fw_xfer * 945fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel) 946{ 947 struct fw_xfer *xfer; 948 struct tlabel *tl; 949 int s = splfw(); 950 951 for( tl = STAILQ_FIRST(&fc->tlabels[tlabel]); tl != NULL; 952 tl = STAILQ_NEXT(tl, link)){ 953 if(tl->xfer->send.hdr.mode.hdr.dst == node){ 954 xfer = tl->xfer; 955 splx(s); 956 if (firewire_debug > 2) 957 printf("fw_tl2xfer: found tl=%d\n", tlabel); 958 return(xfer); 959 } 960 } 961 if (firewire_debug > 1) 962 printf("fw_tl2xfer: not found tl=%d\n", tlabel); 963 splx(s); 964 return(NULL); 965} 966 967/* 968 * To allocate IEEE1394 XFER structure. 969 */ 970struct fw_xfer * 971fw_xfer_alloc(struct malloc_type *type) 972{ 973 struct fw_xfer *xfer; 974 975 xfer = malloc(sizeof(struct fw_xfer), type, M_NOWAIT | M_ZERO); 976 if (xfer == NULL) 977 return xfer; 978 979 xfer->malloc = type; 980 981 return xfer; 982} 983 984struct fw_xfer * 985fw_xfer_alloc_buf(struct malloc_type *type, int send_len, int recv_len) 986{ 987 struct fw_xfer *xfer; 988 989 xfer = fw_xfer_alloc(type); 990 if (xfer == NULL) 991 return(NULL); 992 xfer->send.pay_len = send_len; 993 xfer->recv.pay_len = recv_len; 994 if (send_len > 0) { 995 xfer->send.payload = malloc(send_len, type, M_NOWAIT | M_ZERO); 996 if (xfer->send.payload == NULL) { 997 fw_xfer_free(xfer); 998 return(NULL); 999 } 1000 } 1001 if (recv_len > 0) { 1002 xfer->recv.payload = malloc(recv_len, type, M_NOWAIT); 1003 if (xfer->recv.payload == NULL) { 1004 if (xfer->send.payload != NULL) 1005 free(xfer->send.payload, type); 1006 fw_xfer_free(xfer); 1007 return(NULL); 1008 } 1009 } 1010 return(xfer); 1011} 1012 1013/* 1014 * IEEE1394 XFER post process. 1015 */ 1016void 1017fw_xfer_done(struct fw_xfer *xfer) 1018{ 1019 if (xfer->act.hand == NULL) { 1020 printf("act.hand == NULL\n"); 1021 return; 1022 } 1023 1024 if (xfer->fc == NULL) 1025 panic("fw_xfer_done: why xfer->fc is NULL?"); 1026 1027 xfer->act.hand(xfer); 1028} 1029 1030void 1031fw_xfer_unload(struct fw_xfer* xfer) 1032{ 1033 int s; 1034 1035 if(xfer == NULL ) return; 1036 if(xfer->state == FWXF_INQ){ 1037 printf("fw_xfer_free FWXF_INQ\n"); 1038 s = splfw(); 1039 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link); 1040 xfer->q->queued --; 1041 splx(s); 1042 } 1043 if (xfer->fc != NULL) { 1044#if 1 1045 if(xfer->state == FWXF_START) 1046 /* 1047 * This could happen if: 1048 * 1. We call fwohci_arcv() before fwohci_txd(). 1049 * 2. firewire_watch() is called. 1050 */ 1051 printf("fw_xfer_free FWXF_START\n"); 1052#endif 1053 fw_tl_free(xfer->fc, xfer); 1054 } 1055 xfer->state = FWXF_INIT; 1056 xfer->resp = 0; 1057 xfer->retry = 0; 1058} 1059/* 1060 * To free IEEE1394 XFER structure. 1061 */ 1062void 1063fw_xfer_free_buf( struct fw_xfer* xfer) 1064{ 1065 if (xfer == NULL) { 1066 printf("%s: xfer == NULL\n", __func__); 1067 return; 1068 } 1069 fw_xfer_unload(xfer); 1070 if(xfer->send.payload != NULL){ 1071 free(xfer->send.payload, xfer->malloc); 1072 } 1073 if(xfer->recv.payload != NULL){ 1074 free(xfer->recv.payload, xfer->malloc); 1075 } 1076 free(xfer, xfer->malloc); 1077} 1078 1079void 1080fw_xfer_free( struct fw_xfer* xfer) 1081{ 1082 if (xfer == NULL) { 1083 printf("%s: xfer == NULL\n", __func__); 1084 return; 1085 } 1086 fw_xfer_unload(xfer); 1087 free(xfer, xfer->malloc); 1088} 1089 1090void 1091fw_asy_callback_free(struct fw_xfer *xfer) 1092{ 1093#if 0 1094 printf("asyreq done state=%d resp=%d\n", 1095 xfer->state, xfer->resp); 1096#endif 1097 fw_xfer_free(xfer); 1098} 1099 1100/* 1101 * To configure PHY. 1102 */ 1103static void 1104fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count) 1105{ 1106 struct fw_xfer *xfer; 1107 struct fw_pkt *fp; 1108 1109 fc->status = FWBUSPHYCONF; 1110 1111 xfer = fw_xfer_alloc(M_FWXFER); 1112 if (xfer == NULL) 1113 return; 1114 xfer->fc = fc; 1115 xfer->retry_req = fw_asybusy; 1116 xfer->act.hand = fw_asy_callback_free; 1117 1118 fp = &xfer->send.hdr; 1119 fp->mode.ld[1] = 0; 1120 if (root_node >= 0) 1121 fp->mode.ld[1] |= (root_node & 0x3f) << 24 | 1 << 23; 1122 if (gap_count >= 0) 1123 fp->mode.ld[1] |= 1 << 22 | (gap_count & 0x3f) << 16; 1124 fp->mode.ld[2] = ~fp->mode.ld[1]; 1125/* XXX Dangerous, how to pass PHY packet to device driver */ 1126 fp->mode.common.tcode |= FWTCODE_PHY; 1127 1128 if (firewire_debug) 1129 printf("send phy_config root_node=%d gap_count=%d\n", 1130 root_node, gap_count); 1131 fw_asyreq(fc, -1, xfer); 1132} 1133 1134#if 0 1135/* 1136 * Dump self ID. 1137 */ 1138static void 1139fw_print_sid(uint32_t sid) 1140{ 1141 union fw_self_id *s; 1142 s = (union fw_self_id *) &sid; 1143 printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d" 1144 " p0:%d p1:%d p2:%d i:%d m:%d\n", 1145 s->p0.phy_id, s->p0.link_active, s->p0.gap_count, 1146 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender, 1147 s->p0.power_class, s->p0.port0, s->p0.port1, 1148 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets); 1149} 1150#endif 1151 1152/* 1153 * To receive self ID. 1154 */ 1155void fw_sidrcv(struct firewire_comm* fc, uint32_t *sid, u_int len) 1156{ 1157 uint32_t *p; 1158 union fw_self_id *self_id; 1159 u_int i, j, node, c_port = 0, i_branch = 0; 1160 1161 fc->sid_cnt = len /(sizeof(uint32_t) * 2); 1162 fc->status = FWBUSINIT; 1163 fc->max_node = fc->nodeid & 0x3f; 1164 CSRARC(fc, NODE_IDS) = ((uint32_t)fc->nodeid) << 16; 1165 fc->status = FWBUSCYMELECT; 1166 fc->topology_map->crc_len = 2; 1167 fc->topology_map->generation ++; 1168 fc->topology_map->self_id_count = 0; 1169 fc->topology_map->node_count = 0; 1170 fc->speed_map->generation ++; 1171 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4; 1172 self_id = &fc->topology_map->self_id[0]; 1173 for(i = 0; i < fc->sid_cnt; i ++){ 1174 if (sid[1] != ~sid[0]) { 1175 printf("fw_sidrcv: invalid self-id packet\n"); 1176 sid += 2; 1177 continue; 1178 } 1179 *self_id = *((union fw_self_id *)sid); 1180 fc->topology_map->crc_len++; 1181 if(self_id->p0.sequel == 0){ 1182 fc->topology_map->node_count ++; 1183 c_port = 0; 1184#if 0 1185 fw_print_sid(sid[0]); 1186#endif 1187 node = self_id->p0.phy_id; 1188 if(fc->max_node < node){ 1189 fc->max_node = self_id->p0.phy_id; 1190 } 1191 /* XXX I'm not sure this is the right speed_map */ 1192 fc->speed_map->speed[node][node] 1193 = self_id->p0.phy_speed; 1194 for (j = 0; j < node; j ++) { 1195 fc->speed_map->speed[j][node] 1196 = fc->speed_map->speed[node][j] 1197 = min(fc->speed_map->speed[j][j], 1198 self_id->p0.phy_speed); 1199 } 1200 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) && 1201 (self_id->p0.link_active && self_id->p0.contender)) { 1202 fc->irm = self_id->p0.phy_id; 1203 } 1204 if(self_id->p0.port0 >= 0x2){ 1205 c_port++; 1206 } 1207 if(self_id->p0.port1 >= 0x2){ 1208 c_port++; 1209 } 1210 if(self_id->p0.port2 >= 0x2){ 1211 c_port++; 1212 } 1213 } 1214 if(c_port > 2){ 1215 i_branch += (c_port - 2); 1216 } 1217 sid += 2; 1218 self_id++; 1219 fc->topology_map->self_id_count ++; 1220 } 1221 device_printf(fc->bdev, "%d nodes", fc->max_node + 1); 1222 /* CRC */ 1223 fc->topology_map->crc = fw_crc16( 1224 (uint32_t *)&fc->topology_map->generation, 1225 fc->topology_map->crc_len * 4); 1226 fc->speed_map->crc = fw_crc16( 1227 (uint32_t *)&fc->speed_map->generation, 1228 fc->speed_map->crc_len * 4); 1229 /* byteswap and copy to CSR */ 1230 p = (uint32_t *)fc->topology_map; 1231 for (i = 0; i <= fc->topology_map->crc_len; i++) 1232 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++); 1233 p = (uint32_t *)fc->speed_map; 1234 CSRARC(fc, SPED_MAP) = htonl(*p++); 1235 CSRARC(fc, SPED_MAP + 4) = htonl(*p++); 1236 /* don't byte-swap uint8_t array */ 1237 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4); 1238 1239 fc->max_hop = fc->max_node - i_branch; 1240 printf(", maxhop <= %d", fc->max_hop); 1241 1242 if(fc->irm == -1 ){ 1243 printf(", Not found IRM capable node"); 1244 }else{ 1245 printf(", cable IRM = %d", fc->irm); 1246 if (fc->irm == fc->nodeid) 1247 printf(" (me)"); 1248 } 1249 printf("\n"); 1250 1251 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) { 1252 if (fc->irm == fc->nodeid) { 1253 fc->status = FWBUSMGRDONE; 1254 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm); 1255 fw_bmr(fc); 1256 } else { 1257 fc->status = FWBUSMGRELECT; 1258 callout_reset(&fc->bmr_callout, hz/8, 1259 (void *)fw_try_bmr, (void *)fc); 1260 } 1261 } else 1262 fc->status = FWBUSMGRDONE; 1263 1264 callout_reset(&fc->busprobe_callout, hz/4, 1265 (void *)fw_bus_probe, (void *)fc); 1266} 1267 1268/* 1269 * To probe devices on the IEEE1394 bus. 1270 */ 1271static void 1272fw_bus_probe(struct firewire_comm *fc) 1273{ 1274 int s; 1275 struct fw_device *fwdev; 1276 1277 s = splfw(); 1278 fc->status = FWBUSEXPLORE; 1279 fc->retry_count = 0; 1280 1281 /* Invalidate all devices, just after bus reset. */ 1282 STAILQ_FOREACH(fwdev, &fc->devices, link) 1283 if (fwdev->status != FWDEVINVAL) { 1284 fwdev->status = FWDEVINVAL; 1285 fwdev->rcnt = 0; 1286 } 1287 1288 fc->ongonode = 0; 1289 fc->ongoaddr = CSRROMOFF; 1290 fc->ongodev = NULL; 1291 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1292 fw_bus_explore(fc); 1293 splx(s); 1294} 1295 1296/* 1297 * Find the self_id packet for a node, ignoring sequels. 1298 */ 1299static union fw_self_id * 1300fw_find_self_id(struct firewire_comm *fc, int node) 1301{ 1302 uint32_t i; 1303 union fw_self_id *s; 1304 1305 for (i = 0; i < fc->topology_map->self_id_count; i++) { 1306 s = &fc->topology_map->self_id[i]; 1307 if (s->p0.sequel) 1308 continue; 1309 if (s->p0.phy_id == node) 1310 return s; 1311 } 1312 return 0; 1313} 1314 1315/* 1316 * To collect device informations on the IEEE1394 bus. 1317 */ 1318static void 1319fw_bus_explore(struct firewire_comm *fc ) 1320{ 1321 int err = 0; 1322 struct fw_device *fwdev, *pfwdev, *tfwdev; 1323 uint32_t addr; 1324 struct fw_xfer *xfer; 1325 struct fw_pkt *fp; 1326 1327 if(fc->status != FWBUSEXPLORE) 1328 return; 1329 1330loop: 1331 if(fc->ongonode == fc->nodeid) fc->ongonode++; 1332 1333 if(fc->ongonode > fc->max_node) goto done; 1334 if(fc->ongonode >= 0x3f) goto done; 1335 1336 /* check link */ 1337 /* XXX we need to check phy_id first */ 1338 if (!fw_find_self_id(fc, fc->ongonode)->p0.link_active) { 1339 if (firewire_debug) 1340 printf("node%d: link down\n", fc->ongonode); 1341 fc->ongonode++; 1342 goto loop; 1343 } 1344 1345 if(fc->ongoaddr <= CSRROMOFF && 1346 fc->ongoeui.hi == 0xffffffff && 1347 fc->ongoeui.lo == 0xffffffff ){ 1348 fc->ongoaddr = CSRROMOFF; 1349 addr = 0xf0000000 | fc->ongoaddr; 1350 }else if(fc->ongoeui.hi == 0xffffffff ){ 1351 fc->ongoaddr = CSRROMOFF + 0xc; 1352 addr = 0xf0000000 | fc->ongoaddr; 1353 }else if(fc->ongoeui.lo == 0xffffffff ){ 1354 fc->ongoaddr = CSRROMOFF + 0x10; 1355 addr = 0xf0000000 | fc->ongoaddr; 1356 }else if(fc->ongodev == NULL){ 1357 STAILQ_FOREACH(fwdev, &fc->devices, link) 1358 if (FW_EUI64_EQUAL(fwdev->eui, fc->ongoeui)) 1359 break; 1360 if(fwdev != NULL){ 1361 fwdev->dst = fc->ongonode; 1362 fwdev->status = FWDEVINIT; 1363 fc->ongodev = fwdev; 1364 fc->ongoaddr = CSRROMOFF; 1365 addr = 0xf0000000 | fc->ongoaddr; 1366 goto dorequest; 1367 } 1368 fwdev = malloc(sizeof(struct fw_device), M_FW, 1369 M_NOWAIT | M_ZERO); 1370 if(fwdev == NULL) 1371 return; 1372 fwdev->fc = fc; 1373 fwdev->rommax = 0; 1374 fwdev->dst = fc->ongonode; 1375 fwdev->eui.hi = fc->ongoeui.hi; fwdev->eui.lo = fc->ongoeui.lo; 1376 fwdev->status = FWDEVINIT; 1377 fwdev->speed = fc->speed_map->speed[fc->nodeid][fc->ongonode]; 1378 1379 pfwdev = NULL; 1380 STAILQ_FOREACH(tfwdev, &fc->devices, link) { 1381 if (tfwdev->eui.hi > fwdev->eui.hi || 1382 (tfwdev->eui.hi == fwdev->eui.hi && 1383 tfwdev->eui.lo > fwdev->eui.lo)) 1384 break; 1385 pfwdev = tfwdev; 1386 } 1387 if (pfwdev == NULL) 1388 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link); 1389 else 1390 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link); 1391 1392 device_printf(fc->bdev, "New %s device ID:%08x%08x\n", 1393 linkspeed[fwdev->speed], 1394 fc->ongoeui.hi, fc->ongoeui.lo); 1395 1396 fc->ongodev = fwdev; 1397 fc->ongoaddr = CSRROMOFF; 1398 addr = 0xf0000000 | fc->ongoaddr; 1399 }else{ 1400 addr = 0xf0000000 | fc->ongoaddr; 1401 } 1402dorequest: 1403#if 0 1404 xfer = asyreqq(fc, FWSPD_S100, 0, 0, 1405 ((FWLOCALBUS | fc->ongonode) << 16) | 0xffff , addr, 1406 fw_bus_explore_callback); 1407 if(xfer == NULL) goto done; 1408#else 1409 xfer = fw_xfer_alloc(M_FWXFER); 1410 if(xfer == NULL){ 1411 goto done; 1412 } 1413 xfer->send.spd = 0; 1414 fp = &xfer->send.hdr; 1415 fp->mode.rreqq.dest_hi = 0xffff; 1416 fp->mode.rreqq.tlrt = 0; 1417 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1418 fp->mode.rreqq.pri = 0; 1419 fp->mode.rreqq.src = 0; 1420 fp->mode.rreqq.dst = FWLOCALBUS | fc->ongonode; 1421 fp->mode.rreqq.dest_lo = addr; 1422 xfer->act.hand = fw_bus_explore_callback; 1423 1424 if (firewire_debug) 1425 printf("node%d: explore addr=0x%x\n", 1426 fc->ongonode, fc->ongoaddr); 1427 err = fw_asyreq(fc, -1, xfer); 1428 if(err){ 1429 fw_xfer_free( xfer); 1430 return; 1431 } 1432#endif 1433 return; 1434done: 1435 /* fw_attach_devs */ 1436 fc->status = FWBUSEXPDONE; 1437 if (firewire_debug) 1438 printf("bus_explore done\n"); 1439 fw_attach_dev(fc); 1440 return; 1441 1442} 1443 1444/* Portable Async. request read quad */ 1445struct fw_xfer * 1446asyreqq(struct firewire_comm *fc, uint8_t spd, uint8_t tl, uint8_t rt, 1447 uint32_t addr_hi, uint32_t addr_lo, 1448 void (*hand) (struct fw_xfer*)) 1449{ 1450 struct fw_xfer *xfer; 1451 struct fw_pkt *fp; 1452 int err; 1453 1454 xfer = fw_xfer_alloc(M_FWXFER); 1455 if (xfer == NULL) 1456 return NULL; 1457 1458 xfer->send.spd = spd; /* XXX:min(spd, fc->spd) */ 1459 fp = &xfer->send.hdr; 1460 fp->mode.rreqq.dest_hi = addr_hi & 0xffff; 1461 if(tl & FWP_TL_VALID){ 1462 fp->mode.rreqq.tlrt = (tl & 0x3f) << 2; 1463 }else{ 1464 fp->mode.rreqq.tlrt = 0; 1465 } 1466 fp->mode.rreqq.tlrt |= rt & 0x3; 1467 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1468 fp->mode.rreqq.pri = 0; 1469 fp->mode.rreqq.src = 0; 1470 fp->mode.rreqq.dst = addr_hi >> 16; 1471 fp->mode.rreqq.dest_lo = addr_lo; 1472 xfer->act.hand = hand; 1473 1474 err = fw_asyreq(fc, -1, xfer); 1475 if(err){ 1476 fw_xfer_free( xfer); 1477 return NULL; 1478 } 1479 return xfer; 1480} 1481 1482/* 1483 * Callback for the IEEE1394 bus information collection. 1484 */ 1485static void 1486fw_bus_explore_callback(struct fw_xfer *xfer) 1487{ 1488 struct firewire_comm *fc; 1489 struct fw_pkt *sfp,*rfp; 1490 struct csrhdr *chdr; 1491 struct csrdir *csrd; 1492 struct csrreg *csrreg; 1493 uint32_t offset; 1494 1495 1496 if(xfer == NULL) { 1497 printf("xfer == NULL\n"); 1498 return; 1499 } 1500 fc = xfer->fc; 1501 1502 if (firewire_debug) 1503 printf("node%d: callback addr=0x%x\n", 1504 fc->ongonode, fc->ongoaddr); 1505 1506 if(xfer->resp != 0){ 1507 device_printf(fc->bdev, 1508 "bus_explore node=%d addr=0x%x resp=%d retry=%d\n", 1509 fc->ongonode, fc->ongoaddr, xfer->resp, xfer->retry); 1510 if (xfer->retry < fc->max_asyretry) { 1511 fw_asystart(xfer); 1512 return; 1513 } 1514 goto errnode; 1515 } 1516 1517 sfp = &xfer->send.hdr; 1518 rfp = &xfer->recv.hdr; 1519#if 0 1520 { 1521 uint32_t *qld; 1522 int i; 1523 qld = (uint32_t *)xfer->recv.buf; 1524 printf("len:%d\n", xfer->recv.len); 1525 for( i = 0 ; i <= xfer->recv.len && i < 32; i+= 4){ 1526 printf("0x%08x ", rfp->mode.ld[i/4]); 1527 if((i % 16) == 15) printf("\n"); 1528 } 1529 if((i % 16) != 15) printf("\n"); 1530 } 1531#endif 1532 if(fc->ongodev == NULL){ 1533 if(sfp->mode.rreqq.dest_lo == (0xf0000000 | CSRROMOFF)){ 1534 rfp->mode.rresq.data = ntohl(rfp->mode.rresq.data); 1535 chdr = (struct csrhdr *)(&rfp->mode.rresq.data); 1536/* If CSR is minimal confinguration, more investigation is not needed. */ 1537 if(chdr->info_len == 1){ 1538 if (firewire_debug) 1539 printf("node%d: minimal config\n", 1540 fc->ongonode); 1541 goto nextnode; 1542 }else{ 1543 fc->ongoaddr = CSRROMOFF + 0xc; 1544 } 1545 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0xc))){ 1546 fc->ongoeui.hi = ntohl(rfp->mode.rresq.data); 1547 fc->ongoaddr = CSRROMOFF + 0x10; 1548 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0x10))){ 1549 fc->ongoeui.lo = ntohl(rfp->mode.rresq.data); 1550 if (fc->ongoeui.hi == 0 && fc->ongoeui.lo == 0) { 1551 if (firewire_debug) 1552 printf("node%d: eui64 is zero.\n", 1553 fc->ongonode); 1554 goto nextnode; 1555 } 1556 fc->ongoaddr = CSRROMOFF; 1557 } 1558 }else{ 1559 if (fc->ongoaddr == CSRROMOFF && 1560 fc->ongodev->csrrom[0] == ntohl(rfp->mode.rresq.data)) { 1561 fc->ongodev->status = FWDEVATTACHED; 1562 goto nextnode; 1563 } 1564 fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4] = ntohl(rfp->mode.rresq.data); 1565 if(fc->ongoaddr > fc->ongodev->rommax){ 1566 fc->ongodev->rommax = fc->ongoaddr; 1567 } 1568 csrd = SLIST_FIRST(&fc->ongocsr); 1569 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1570 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1571 offset = CSRROMOFF; 1572 }else{ 1573 chdr = (struct csrhdr *)&fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]; 1574 offset = csrd->off; 1575 } 1576 if(fc->ongoaddr > (CSRROMOFF + 0x14) && fc->ongoaddr != offset){ 1577 csrreg = (struct csrreg *)&fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4]; 1578 if( csrreg->key == 0x81 || csrreg->key == 0xd1){ 1579 csrd = SLIST_FIRST(&fc->csrfree); 1580 if(csrd == NULL){ 1581 goto nextnode; 1582 }else{ 1583 csrd->ongoaddr = fc->ongoaddr; 1584 fc->ongoaddr += csrreg->val * 4; 1585 csrd->off = fc->ongoaddr; 1586 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1587 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1588 goto nextaddr; 1589 } 1590 } 1591 } 1592 fc->ongoaddr += 4; 1593 if(((fc->ongoaddr - offset)/4 > chdr->crc_len) && 1594 (fc->ongodev->rommax < 0x414)){ 1595 if(fc->ongodev->rommax <= 0x414){ 1596 csrd = SLIST_FIRST(&fc->csrfree); 1597 if(csrd == NULL) goto nextnode; 1598 csrd->off = fc->ongoaddr; 1599 csrd->ongoaddr = fc->ongoaddr; 1600 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1601 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1602 } 1603 goto nextaddr; 1604 } 1605 1606 while(((fc->ongoaddr - offset)/4 > chdr->crc_len)){ 1607 if(csrd == NULL){ 1608 goto nextnode; 1609 }; 1610 fc->ongoaddr = csrd->ongoaddr + 4; 1611 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1612 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1613 csrd = SLIST_FIRST(&fc->ongocsr); 1614 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1615 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1616 offset = CSRROMOFF; 1617 }else{ 1618 chdr = (struct csrhdr *)&(fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]); 1619 offset = csrd->off; 1620 } 1621 } 1622 if((fc->ongoaddr - CSRROMOFF) > CSRROMSIZE){ 1623 goto nextnode; 1624 } 1625 } 1626nextaddr: 1627 fw_xfer_free( xfer); 1628 fw_bus_explore(fc); 1629 return; 1630errnode: 1631 fc->retry_count++; 1632 if (fc->ongodev != NULL) { 1633 fc->ongodev->status = FWDEVINVAL; 1634 /* Invalidate ROM */ 1635 fc->ongodev->csrrom[0] = 0; 1636 } 1637nextnode: 1638 fw_xfer_free( xfer); 1639 fc->ongonode++; 1640/* housekeeping work space */ 1641 fc->ongoaddr = CSRROMOFF; 1642 fc->ongodev = NULL; 1643 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1644 while((csrd = SLIST_FIRST(&fc->ongocsr)) != NULL){ 1645 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1646 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1647 } 1648 fw_bus_explore(fc); 1649 return; 1650} 1651 1652/* 1653 * To attach sub-devices layer onto IEEE1394 bus. 1654 */ 1655static void 1656fw_attach_dev(struct firewire_comm *fc) 1657{ 1658 struct fw_device *fwdev, *next; 1659 int i, err; 1660 device_t *devlistp; 1661 int devcnt; 1662 struct firewire_dev_comm *fdc; 1663 1664 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1665 next = STAILQ_NEXT(fwdev, link); 1666 if (fwdev->status == FWDEVINIT) { 1667 fwdev->status = FWDEVATTACHED; 1668 } else if (fwdev->status == FWDEVINVAL) { 1669 fwdev->rcnt ++; 1670 if (fwdev->rcnt > hold_count) { 1671 /* 1672 * Remove devices which have not been seen 1673 * for a while. 1674 */ 1675 STAILQ_REMOVE(&fc->devices, fwdev, fw_device, 1676 link); 1677 free(fwdev, M_FW); 1678 } 1679 } 1680 } 1681 1682 err = device_get_children(fc->bdev, &devlistp, &devcnt); 1683 if( err != 0 ) 1684 return; 1685 for( i = 0 ; i < devcnt ; i++){ 1686 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 1687 fdc = device_get_softc(devlistp[i]); 1688 if (fdc->post_explore != NULL) 1689 fdc->post_explore(fdc); 1690 } 1691 } 1692 free(devlistp, M_TEMP); 1693 1694 if (fc->retry_count > 0) { 1695 device_printf(fc->bdev, "bus_explore failed for %d nodes\n", 1696 fc->retry_count); 1697#if 0 1698 callout_reset(&fc->retry_probe_callout, hz*2, 1699 (void *)fc->ibr, (void *)fc); 1700#endif 1701 } 1702 return; 1703} 1704 1705/* 1706 * To allocate unique transaction label. 1707 */ 1708static int 1709fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer) 1710{ 1711 u_int i; 1712 struct tlabel *tl, *tmptl; 1713 int s; 1714 static uint32_t label = 0; 1715 1716 s = splfw(); 1717 for( i = 0 ; i < 0x40 ; i ++){ 1718 label = (label + 1) & 0x3f; 1719 for(tmptl = STAILQ_FIRST(&fc->tlabels[label]); 1720 tmptl != NULL; tmptl = STAILQ_NEXT(tmptl, link)){ 1721 if (tmptl->xfer->send.hdr.mode.hdr.dst == 1722 xfer->send.hdr.mode.hdr.dst) 1723 break; 1724 } 1725 if(tmptl == NULL) { 1726 tl = malloc(sizeof(struct tlabel),M_FW,M_NOWAIT); 1727 if (tl == NULL) { 1728 splx(s); 1729 return (-1); 1730 } 1731 tl->xfer = xfer; 1732 STAILQ_INSERT_TAIL(&fc->tlabels[label], tl, link); 1733 splx(s); 1734 if (firewire_debug > 1) 1735 printf("fw_get_tlabel: dst=%d tl=%d\n", 1736 xfer->send.hdr.mode.hdr.dst, label); 1737 return(label); 1738 } 1739 } 1740 splx(s); 1741 1742 if (firewire_debug > 1) 1743 printf("fw_get_tlabel: no free tlabel\n"); 1744 return(-1); 1745} 1746 1747static void 1748fw_rcv_copy(struct fw_rcv_buf *rb) 1749{ 1750 struct fw_pkt *pkt; 1751 u_char *p; 1752 struct tcode_info *tinfo; 1753 u_int res, i, len, plen; 1754 1755 rb->xfer->recv.spd -= rb->spd; 1756 1757 pkt = (struct fw_pkt *)rb->vec->iov_base; 1758 tinfo = &rb->fc->tcode[pkt->mode.hdr.tcode]; 1759 1760 /* Copy header */ 1761 p = (u_char *)&rb->xfer->recv.hdr; 1762 bcopy(rb->vec->iov_base, p, tinfo->hdr_len); 1763 (u_char *)rb->vec->iov_base += tinfo->hdr_len; 1764 rb->vec->iov_len -= tinfo->hdr_len; 1765 1766 /* Copy payload */ 1767 p = (u_char *)rb->xfer->recv.payload; 1768 res = rb->xfer->recv.pay_len; 1769 1770 /* special handling for RRESQ */ 1771 if (pkt->mode.hdr.tcode == FWTCODE_RRESQ && 1772 p != NULL && res >= sizeof(uint32_t)) { 1773 *(uint32_t *)p = pkt->mode.rresq.data; 1774 rb->xfer->recv.pay_len = sizeof(uint32_t); 1775 return; 1776 } 1777 1778 if ((tinfo->flag & FWTI_BLOCK_ASY) == 0) 1779 return; 1780 1781 plen = pkt->mode.rresb.len; 1782 1783 for (i = 0; i < rb->nvec; i++, rb->vec++) { 1784 len = MIN(rb->vec->iov_len, plen); 1785 if (res < len) { 1786 printf("rcv buffer(%d) is %d bytes short.\n", 1787 rb->xfer->recv.pay_len, len - res); 1788 len = res; 1789 } 1790 bcopy(rb->vec->iov_base, p, len); 1791 p += len; 1792 res -= len; 1793 plen -= len; 1794 if (res == 0 || plen == 0) 1795 break; 1796 } 1797 rb->xfer->recv.pay_len -= res; 1798 1799} 1800 1801/* 1802 * Generic packet receiving process. 1803 */ 1804void 1805fw_rcv(struct fw_rcv_buf *rb) 1806{ 1807 struct fw_pkt *fp, *resfp; 1808 struct fw_bind *bind; 1809 int tcode, s; 1810 int i, len, oldstate; 1811#if 0 1812 { 1813 uint32_t *qld; 1814 int i; 1815 qld = (uint32_t *)buf; 1816 printf("spd %d len:%d\n", spd, len); 1817 for( i = 0 ; i <= len && i < 32; i+= 4){ 1818 printf("0x%08x ", ntohl(qld[i/4])); 1819 if((i % 16) == 15) printf("\n"); 1820 } 1821 if((i % 16) != 15) printf("\n"); 1822 } 1823#endif 1824 fp = (struct fw_pkt *)rb->vec[0].iov_base; 1825 tcode = fp->mode.common.tcode; 1826 switch (tcode) { 1827 case FWTCODE_WRES: 1828 case FWTCODE_RRESQ: 1829 case FWTCODE_RRESB: 1830 case FWTCODE_LRES: 1831 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1832 fp->mode.hdr.tlrt >> 2); 1833 if(rb->xfer == NULL) { 1834 printf("fw_rcv: unknown response " 1835 "%s(%x) src=0x%x tl=0x%x rt=%d data=0x%x\n", 1836 tcode_str[tcode], tcode, 1837 fp->mode.hdr.src, 1838 fp->mode.hdr.tlrt >> 2, 1839 fp->mode.hdr.tlrt & 3, 1840 fp->mode.rresq.data); 1841#if 1 1842 printf("try ad-hoc work around!!\n"); 1843 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1844 (fp->mode.hdr.tlrt >> 2)^3); 1845 if (rb->xfer == NULL) { 1846 printf("no use...\n"); 1847 goto err; 1848 } 1849#else 1850 goto err; 1851#endif 1852 } 1853 fw_rcv_copy(rb); 1854 if (rb->xfer->recv.hdr.mode.wres.rtcode != RESP_CMP) 1855 rb->xfer->resp = EIO; 1856 else 1857 rb->xfer->resp = 0; 1858 /* make sure the packet is drained in AT queue */ 1859 oldstate = rb->xfer->state; 1860 rb->xfer->state = FWXF_RCVD; 1861 switch (oldstate) { 1862 case FWXF_SENT: 1863 fw_xfer_done(rb->xfer); 1864 break; 1865 case FWXF_START: 1866#if 0 1867 if (firewire_debug) 1868 printf("not sent yet tl=%x\n", rb->xfer->tl); 1869#endif 1870 break; 1871 default: 1872 printf("unexpected state %d\n", rb->xfer->state); 1873 } 1874 return; 1875 case FWTCODE_WREQQ: 1876 case FWTCODE_WREQB: 1877 case FWTCODE_RREQQ: 1878 case FWTCODE_RREQB: 1879 case FWTCODE_LREQ: 1880 bind = fw_bindlookup(rb->fc, fp->mode.rreqq.dest_hi, 1881 fp->mode.rreqq.dest_lo); 1882 if(bind == NULL){ 1883 printf("Unknown service addr 0x%04x:0x%08x %s(%x)" 1884#if defined(__DragonFly__) || __FreeBSD_version < 500000 1885 " src=0x%x data=%lx\n", 1886#else 1887 " src=0x%x data=%x\n", 1888#endif 1889 fp->mode.wreqq.dest_hi, fp->mode.wreqq.dest_lo, 1890 tcode_str[tcode], tcode, 1891 fp->mode.hdr.src, ntohl(fp->mode.wreqq.data)); 1892 if (rb->fc->status == FWBUSRESET) { 1893 printf("fw_rcv: cannot respond(bus reset)!\n"); 1894 goto err; 1895 } 1896 rb->xfer = fw_xfer_alloc(M_FWXFER); 1897 if(rb->xfer == NULL){ 1898 return; 1899 } 1900 rb->xfer->send.spd = rb->spd; 1901 rb->xfer->send.pay_len = 0; 1902 resfp = &rb->xfer->send.hdr; 1903 switch (tcode) { 1904 case FWTCODE_WREQQ: 1905 case FWTCODE_WREQB: 1906 resfp->mode.hdr.tcode = FWTCODE_WRES; 1907 break; 1908 case FWTCODE_RREQQ: 1909 resfp->mode.hdr.tcode = FWTCODE_RRESQ; 1910 break; 1911 case FWTCODE_RREQB: 1912 resfp->mode.hdr.tcode = FWTCODE_RRESB; 1913 break; 1914 case FWTCODE_LREQ: 1915 resfp->mode.hdr.tcode = FWTCODE_LRES; 1916 break; 1917 } 1918 resfp->mode.hdr.dst = fp->mode.hdr.src; 1919 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt; 1920 resfp->mode.hdr.pri = fp->mode.hdr.pri; 1921 resfp->mode.rresb.rtcode = RESP_ADDRESS_ERROR; 1922 resfp->mode.rresb.extcode = 0; 1923 resfp->mode.rresb.len = 0; 1924/* 1925 rb->xfer->act.hand = fw_asy_callback; 1926*/ 1927 rb->xfer->act.hand = fw_xfer_free; 1928 if(fw_asyreq(rb->fc, -1, rb->xfer)){ 1929 fw_xfer_free(rb->xfer); 1930 return; 1931 } 1932 goto err; 1933 } 1934 len = 0; 1935 for (i = 0; i < rb->nvec; i ++) 1936 len += rb->vec[i].iov_len; 1937 switch(bind->act_type){ 1938 case FWACT_XFER: 1939 /* splfw()?? */ 1940 rb->xfer = STAILQ_FIRST(&bind->xferlist); 1941 if (rb->xfer == NULL) { 1942 printf("Discard a packet for this bind.\n"); 1943 goto err; 1944 } 1945 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 1946 fw_rcv_copy(rb); 1947 rb->xfer->act.hand(rb->xfer); 1948 return; 1949 break; 1950 case FWACT_CH: 1951 if(rb->fc->ir[bind->sub]->queued >= 1952 rb->fc->ir[bind->sub]->maxq){ 1953 device_printf(rb->fc->bdev, 1954 "Discard a packet %x %d\n", 1955 bind->sub, 1956 rb->fc->ir[bind->sub]->queued); 1957 goto err; 1958 } 1959 rb->xfer = STAILQ_FIRST(&bind->xferlist); 1960 if (rb->xfer == NULL) { 1961 printf("Discard packet for this bind\n"); 1962 goto err; 1963 } 1964 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 1965 fw_rcv_copy(rb); 1966 s = splfw(); 1967 rb->fc->ir[bind->sub]->queued++; 1968 STAILQ_INSERT_TAIL(&rb->fc->ir[bind->sub]->q, 1969 rb->xfer, link); 1970 splx(s); 1971 1972 wakeup((caddr_t)rb->fc->ir[bind->sub]); 1973 1974 return; 1975 break; 1976 default: 1977 goto err; 1978 break; 1979 } 1980 break; 1981#if 0 /* shouldn't happen ?? or for GASP */ 1982 case FWTCODE_STREAM: 1983 { 1984 struct fw_xferq *xferq; 1985 1986 xferq = rb->fc->ir[sub]; 1987#if 0 1988 printf("stream rcv dma %d len %d off %d spd %d\n", 1989 sub, len, off, spd); 1990#endif 1991 if(xferq->queued >= xferq->maxq) { 1992 printf("receive queue is full\n"); 1993 goto err; 1994 } 1995 /* XXX get xfer from xfer queue, we don't need copy for 1996 per packet mode */ 1997 rb->xfer = fw_xfer_alloc_buf(M_FWXFER, 0, /* XXX */ 1998 vec[0].iov_len); 1999 if (rb->xfer == NULL) goto err; 2000 fw_rcv_copy(rb) 2001 s = splfw(); 2002 xferq->queued++; 2003 STAILQ_INSERT_TAIL(&xferq->q, rb->xfer, link); 2004 splx(s); 2005 sc = device_get_softc(rb->fc->bdev); 2006#if defined(__DragonFly__) || __FreeBSD_version < 500000 2007 if (&xferq->rsel.si_pid != 0) 2008#else 2009 if (SEL_WAITING(&xferq->rsel)) 2010#endif 2011 selwakeuppri(&xferq->rsel, FWPRI); 2012 if (xferq->flag & FWXFERQ_WAKEUP) { 2013 xferq->flag &= ~FWXFERQ_WAKEUP; 2014 wakeup((caddr_t)xferq); 2015 } 2016 if (xferq->flag & FWXFERQ_HANDLER) { 2017 xferq->hand(xferq); 2018 } 2019 return; 2020 break; 2021 } 2022#endif 2023 default: 2024 printf("fw_rcv: unknow tcode %d\n", tcode); 2025 break; 2026 } 2027err: 2028 return; 2029} 2030 2031/* 2032 * Post process for Bus Manager election process. 2033 */ 2034static void 2035fw_try_bmr_callback(struct fw_xfer *xfer) 2036{ 2037 struct firewire_comm *fc; 2038 int bmr; 2039 2040 if (xfer == NULL) 2041 return; 2042 fc = xfer->fc; 2043 if (xfer->resp != 0) 2044 goto error; 2045 if (xfer->recv.payload == NULL) 2046 goto error; 2047 if (xfer->recv.hdr.mode.lres.rtcode != FWRCODE_COMPLETE) 2048 goto error; 2049 2050 bmr = ntohl(xfer->recv.payload[0]); 2051 if (bmr == 0x3f) 2052 bmr = fc->nodeid; 2053 2054 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f); 2055 fw_xfer_free_buf(xfer); 2056 fw_bmr(fc); 2057 return; 2058 2059error: 2060 device_printf(fc->bdev, "bus manager election failed\n"); 2061 fw_xfer_free_buf(xfer); 2062} 2063 2064 2065/* 2066 * To candidate Bus Manager election process. 2067 */ 2068static void 2069fw_try_bmr(void *arg) 2070{ 2071 struct fw_xfer *xfer; 2072 struct firewire_comm *fc = (struct firewire_comm *)arg; 2073 struct fw_pkt *fp; 2074 int err = 0; 2075 2076 xfer = fw_xfer_alloc_buf(M_FWXFER, 8, 4); 2077 if(xfer == NULL){ 2078 return; 2079 } 2080 xfer->send.spd = 0; 2081 fc->status = FWBUSMGRELECT; 2082 2083 fp = &xfer->send.hdr; 2084 fp->mode.lreq.dest_hi = 0xffff; 2085 fp->mode.lreq.tlrt = 0; 2086 fp->mode.lreq.tcode = FWTCODE_LREQ; 2087 fp->mode.lreq.pri = 0; 2088 fp->mode.lreq.src = 0; 2089 fp->mode.lreq.len = 8; 2090 fp->mode.lreq.extcode = EXTCODE_CMP_SWAP; 2091 fp->mode.lreq.dst = FWLOCALBUS | fc->irm; 2092 fp->mode.lreq.dest_lo = 0xf0000000 | BUS_MGR_ID; 2093 xfer->send.payload[0] = htonl(0x3f); 2094 xfer->send.payload[1] = htonl(fc->nodeid); 2095 xfer->act.hand = fw_try_bmr_callback; 2096 2097 err = fw_asyreq(fc, -1, xfer); 2098 if(err){ 2099 fw_xfer_free_buf(xfer); 2100 return; 2101 } 2102 return; 2103} 2104 2105#ifdef FW_VMACCESS 2106/* 2107 * Software implementation for physical memory block access. 2108 * XXX:Too slow, usef for debug purpose only. 2109 */ 2110static void 2111fw_vmaccess(struct fw_xfer *xfer){ 2112 struct fw_pkt *rfp, *sfp = NULL; 2113 uint32_t *ld = (uint32_t *)xfer->recv.buf; 2114 2115 printf("vmaccess spd:%2x len:%03x data:%08x %08x %08x %08x\n", 2116 xfer->spd, xfer->recv.len, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 2117 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 2118 if(xfer->resp != 0){ 2119 fw_xfer_free( xfer); 2120 return; 2121 } 2122 if(xfer->recv.buf == NULL){ 2123 fw_xfer_free( xfer); 2124 return; 2125 } 2126 rfp = (struct fw_pkt *)xfer->recv.buf; 2127 switch(rfp->mode.hdr.tcode){ 2128 /* XXX need fix for 64bit arch */ 2129 case FWTCODE_WREQB: 2130 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2131 xfer->send.len = 12; 2132 sfp = (struct fw_pkt *)xfer->send.buf; 2133 bcopy(rfp->mode.wreqb.payload, 2134 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len)); 2135 sfp->mode.wres.tcode = FWTCODE_WRES; 2136 sfp->mode.wres.rtcode = 0; 2137 break; 2138 case FWTCODE_WREQQ: 2139 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2140 xfer->send.len = 12; 2141 sfp->mode.wres.tcode = FWTCODE_WRES; 2142 *((uint32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data; 2143 sfp->mode.wres.rtcode = 0; 2144 break; 2145 case FWTCODE_RREQB: 2146 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_FW, M_NOWAIT); 2147 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len); 2148 sfp = (struct fw_pkt *)xfer->send.buf; 2149 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo), 2150 sfp->mode.rresb.payload, (uint16_t)ntohs(rfp->mode.rreqb.len)); 2151 sfp->mode.rresb.tcode = FWTCODE_RRESB; 2152 sfp->mode.rresb.len = rfp->mode.rreqb.len; 2153 sfp->mode.rresb.rtcode = 0; 2154 sfp->mode.rresb.extcode = 0; 2155 break; 2156 case FWTCODE_RREQQ: 2157 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 2158 xfer->send.len = 16; 2159 sfp = (struct fw_pkt *)xfer->send.buf; 2160 sfp->mode.rresq.data = *(uint32_t *)(ntohl(rfp->mode.rreqq.dest_lo)); 2161 sfp->mode.wres.tcode = FWTCODE_RRESQ; 2162 sfp->mode.rresb.rtcode = 0; 2163 break; 2164 default: 2165 fw_xfer_free( xfer); 2166 return; 2167 } 2168 sfp->mode.hdr.dst = rfp->mode.hdr.src; 2169 xfer->dst = ntohs(rfp->mode.hdr.src); 2170 xfer->act.hand = fw_xfer_free; 2171 xfer->retry_req = fw_asybusy; 2172 2173 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt; 2174 sfp->mode.hdr.pri = 0; 2175 2176 fw_asyreq(xfer->fc, -1, xfer); 2177/**/ 2178 return; 2179} 2180#endif 2181 2182/* 2183 * CRC16 check-sum for IEEE1394 register blocks. 2184 */ 2185uint16_t 2186fw_crc16(uint32_t *ptr, uint32_t len){ 2187 uint32_t i, sum, crc = 0; 2188 int shift; 2189 len = (len + 3) & ~3; 2190 for(i = 0 ; i < len ; i+= 4){ 2191 for( shift = 28 ; shift >= 0 ; shift -= 4){ 2192 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf; 2193 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum; 2194 } 2195 crc &= 0xffff; 2196 } 2197 return((uint16_t) crc); 2198} 2199 2200static int 2201fw_bmr(struct firewire_comm *fc) 2202{ 2203 struct fw_device fwdev; 2204 union fw_self_id *self_id; 2205 int cmstr; 2206 uint32_t quad; 2207 2208 /* Check to see if the current root node is cycle master capable */ 2209 self_id = fw_find_self_id(fc, fc->max_node); 2210 if (fc->max_node > 0) { 2211 /* XXX check cmc bit of businfo block rather than contender */ 2212 if (self_id->p0.link_active && self_id->p0.contender) 2213 cmstr = fc->max_node; 2214 else { 2215 device_printf(fc->bdev, 2216 "root node is not cycle master capable\n"); 2217 /* XXX shall we be the cycle master? */ 2218 cmstr = fc->nodeid; 2219 /* XXX need bus reset */ 2220 } 2221 } else 2222 cmstr = -1; 2223 2224 device_printf(fc->bdev, "bus manager %d ", CSRARC(fc, BUS_MGR_ID)); 2225 if(CSRARC(fc, BUS_MGR_ID) != fc->nodeid) { 2226 /* We are not the bus manager */ 2227 printf("\n"); 2228 return(0); 2229 } 2230 printf("(me)\n"); 2231 2232 /* Optimize gapcount */ 2233 if(fc->max_hop <= MAX_GAPHOP ) 2234 fw_phy_config(fc, cmstr, gap_cnt[fc->max_hop]); 2235 /* If we are the cycle master, nothing to do */ 2236 if (cmstr == fc->nodeid || cmstr == -1) 2237 return 0; 2238 /* Bus probe has not finished, make dummy fwdev for cmstr */ 2239 bzero(&fwdev, sizeof(fwdev)); 2240 fwdev.fc = fc; 2241 fwdev.dst = cmstr; 2242 fwdev.speed = 0; 2243 fwdev.maxrec = 8; /* 512 */ 2244 fwdev.status = FWDEVINIT; 2245 /* Set cmstr bit on the cycle master */ 2246 quad = htonl(1 << 8); 2247 fwmem_write_quad(&fwdev, NULL, 0/*spd*/, 2248 0xffff, 0xf0000000 | STATE_SET, &quad, fw_asy_callback_free); 2249 2250 return 0; 2251} 2252 2253static int 2254fw_modevent(module_t mode, int type, void *data) 2255{ 2256 int err = 0; 2257#if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2258 static eventhandler_tag fwdev_ehtag = NULL; 2259#endif 2260 2261 switch (type) { 2262 case MOD_LOAD: 2263#if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2264 fwdev_ehtag = EVENTHANDLER_REGISTER(dev_clone, 2265 fwdev_clone, 0, 1000); 2266#endif 2267 break; 2268 case MOD_UNLOAD: 2269#if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2270 if (fwdev_ehtag != NULL) 2271 EVENTHANDLER_DEREGISTER(dev_clone, fwdev_ehtag); 2272#endif 2273 break; 2274 case MOD_SHUTDOWN: 2275 break; 2276 } 2277 return (err); 2278} 2279 2280 2281#ifdef __DragonFly__ 2282DECLARE_DUMMY_MODULE(firewire); 2283#endif 2284DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,fw_modevent,0); 2285MODULE_VERSION(firewire, 1); 2286