firewire.c revision 152792
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 152792 2005-11-25 14:29:24Z 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->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 return; 816 } 817 xfer->act.hand = fw_vmaccess; 818 xfer->fc = fc; 819 xfer->sc = NULL; 820 821 fwb->start_hi = 0x2; 822 fwb->start_lo = 0; 823 fwb->addrlen = 0xffffffff; 824 fwb->xfer = xfer; 825 fw_bindadd(fc, fwb); 826#endif 827} 828 829#define BIND_CMP(addr, fwb) (((addr) < (fwb)->start)?-1:\ 830 ((fwb)->end < (addr))?1:0) 831 832/* 833 * To lookup bound process from IEEE1394 address. 834 */ 835struct fw_bind * 836fw_bindlookup(struct firewire_comm *fc, uint16_t dest_hi, uint32_t dest_lo) 837{ 838 u_int64_t addr; 839 struct fw_bind *tfw; 840 841 addr = ((u_int64_t)dest_hi << 32) | dest_lo; 842 STAILQ_FOREACH(tfw, &fc->binds, fclist) 843 if (tfw->act_type != FWACT_NULL && BIND_CMP(addr, tfw) == 0) 844 return(tfw); 845 return(NULL); 846} 847 848/* 849 * To bind IEEE1394 address block to process. 850 */ 851int 852fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb) 853{ 854 struct fw_bind *tfw, *prev = NULL; 855 856 if (fwb->start > fwb->end) { 857 printf("%s: invalid range\n", __func__); 858 return EINVAL; 859 } 860 861 STAILQ_FOREACH(tfw, &fc->binds, fclist) { 862 if (fwb->end < tfw->start) 863 break; 864 prev = tfw; 865 } 866 if (prev == NULL) { 867 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 868 goto out; 869 } 870 if (prev->end < fwb->start) { 871 STAILQ_INSERT_AFTER(&fc->binds, prev, fwb, fclist); 872 goto out; 873 } 874 875 printf("%s: bind failed\n", __func__); 876 return (EBUSY); 877 878out: 879 if (fwb->act_type == FWACT_CH) 880 STAILQ_INSERT_HEAD(&fc->ir[fwb->sub]->binds, fwb, chlist); 881 return (0); 882} 883 884/* 885 * To free IEEE1394 address block. 886 */ 887int 888fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb) 889{ 890#if 0 891 struct fw_xfer *xfer, *next; 892#endif 893 struct fw_bind *tfw; 894 int s; 895 896 s = splfw(); 897 STAILQ_FOREACH(tfw, &fc->binds, fclist) 898 if (tfw == fwb) { 899 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist); 900 goto found; 901 } 902 903 printf("%s: no such binding\n", __func__); 904 splx(s); 905 return (1); 906found: 907#if 0 908 /* shall we do this? */ 909 for (xfer = STAILQ_FIRST(&fwb->xferlist); xfer != NULL; xfer = next) { 910 next = STAILQ_NEXT(xfer, link); 911 fw_xfer_free(xfer); 912 } 913 STAILQ_INIT(&fwb->xferlist); 914#endif 915 916 splx(s); 917 return 0; 918} 919 920/* 921 * To free transaction label. 922 */ 923static void 924fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer) 925{ 926 struct tlabel *tl; 927 int s = splfw(); 928 929 for( tl = STAILQ_FIRST(&fc->tlabels[xfer->tl]); tl != NULL; 930 tl = STAILQ_NEXT(tl, link)){ 931 if(tl->xfer == xfer){ 932 STAILQ_REMOVE(&fc->tlabels[xfer->tl], tl, tlabel, link); 933 free(tl, M_FW); 934 splx(s); 935 return; 936 } 937 } 938 splx(s); 939 return; 940} 941 942/* 943 * To obtain XFER structure by transaction label. 944 */ 945static struct fw_xfer * 946fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel) 947{ 948 struct fw_xfer *xfer; 949 struct tlabel *tl; 950 int s = splfw(); 951 952 for( tl = STAILQ_FIRST(&fc->tlabels[tlabel]); tl != NULL; 953 tl = STAILQ_NEXT(tl, link)){ 954 if(tl->xfer->send.hdr.mode.hdr.dst == node){ 955 xfer = tl->xfer; 956 splx(s); 957 if (firewire_debug > 2) 958 printf("fw_tl2xfer: found tl=%d\n", tlabel); 959 return(xfer); 960 } 961 } 962 if (firewire_debug > 1) 963 printf("fw_tl2xfer: not found tl=%d\n", tlabel); 964 splx(s); 965 return(NULL); 966} 967 968/* 969 * To allocate IEEE1394 XFER structure. 970 */ 971struct fw_xfer * 972fw_xfer_alloc(struct malloc_type *type) 973{ 974 struct fw_xfer *xfer; 975 976 xfer = malloc(sizeof(struct fw_xfer), type, M_NOWAIT | M_ZERO); 977 if (xfer == NULL) 978 return xfer; 979 980 xfer->malloc = type; 981 982 return xfer; 983} 984 985struct fw_xfer * 986fw_xfer_alloc_buf(struct malloc_type *type, int send_len, int recv_len) 987{ 988 struct fw_xfer *xfer; 989 990 xfer = fw_xfer_alloc(type); 991 if (xfer == NULL) 992 return(NULL); 993 xfer->send.pay_len = send_len; 994 xfer->recv.pay_len = recv_len; 995 if (send_len > 0) { 996 xfer->send.payload = malloc(send_len, type, M_NOWAIT | M_ZERO); 997 if (xfer->send.payload == NULL) { 998 fw_xfer_free(xfer); 999 return(NULL); 1000 } 1001 } 1002 if (recv_len > 0) { 1003 xfer->recv.payload = malloc(recv_len, type, M_NOWAIT); 1004 if (xfer->recv.payload == NULL) { 1005 if (xfer->send.payload != NULL) 1006 free(xfer->send.payload, type); 1007 fw_xfer_free(xfer); 1008 return(NULL); 1009 } 1010 } 1011 return(xfer); 1012} 1013 1014/* 1015 * IEEE1394 XFER post process. 1016 */ 1017void 1018fw_xfer_done(struct fw_xfer *xfer) 1019{ 1020 if (xfer->act.hand == NULL) { 1021 printf("act.hand == NULL\n"); 1022 return; 1023 } 1024 1025 if (xfer->fc == NULL) 1026 panic("fw_xfer_done: why xfer->fc is NULL?"); 1027 1028 xfer->act.hand(xfer); 1029} 1030 1031void 1032fw_xfer_unload(struct fw_xfer* xfer) 1033{ 1034 int s; 1035 1036 if(xfer == NULL ) return; 1037 if(xfer->state == FWXF_INQ){ 1038 printf("fw_xfer_free FWXF_INQ\n"); 1039 s = splfw(); 1040 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link); 1041 xfer->q->queued --; 1042 splx(s); 1043 } 1044 if (xfer->fc != NULL) { 1045#if 1 1046 if(xfer->state == FWXF_START) 1047 /* 1048 * This could happen if: 1049 * 1. We call fwohci_arcv() before fwohci_txd(). 1050 * 2. firewire_watch() is called. 1051 */ 1052 printf("fw_xfer_free FWXF_START\n"); 1053#endif 1054 fw_tl_free(xfer->fc, xfer); 1055 } 1056 xfer->state = FWXF_INIT; 1057 xfer->resp = 0; 1058 xfer->retry = 0; 1059} 1060/* 1061 * To free IEEE1394 XFER structure. 1062 */ 1063void 1064fw_xfer_free_buf( struct fw_xfer* xfer) 1065{ 1066 if (xfer == NULL) { 1067 printf("%s: xfer == NULL\n", __func__); 1068 return; 1069 } 1070 fw_xfer_unload(xfer); 1071 if(xfer->send.payload != NULL){ 1072 free(xfer->send.payload, xfer->malloc); 1073 } 1074 if(xfer->recv.payload != NULL){ 1075 free(xfer->recv.payload, xfer->malloc); 1076 } 1077 free(xfer, xfer->malloc); 1078} 1079 1080void 1081fw_xfer_free( struct fw_xfer* xfer) 1082{ 1083 if (xfer == NULL) { 1084 printf("%s: xfer == NULL\n", __func__); 1085 return; 1086 } 1087 fw_xfer_unload(xfer); 1088 free(xfer, xfer->malloc); 1089} 1090 1091void 1092fw_asy_callback_free(struct fw_xfer *xfer) 1093{ 1094#if 0 1095 printf("asyreq done state=%d resp=%d\n", 1096 xfer->state, xfer->resp); 1097#endif 1098 fw_xfer_free(xfer); 1099} 1100 1101/* 1102 * To configure PHY. 1103 */ 1104static void 1105fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count) 1106{ 1107 struct fw_xfer *xfer; 1108 struct fw_pkt *fp; 1109 1110 fc->status = FWBUSPHYCONF; 1111 1112 xfer = fw_xfer_alloc(M_FWXFER); 1113 if (xfer == NULL) 1114 return; 1115 xfer->fc = fc; 1116 xfer->retry_req = fw_asybusy; 1117 xfer->act.hand = fw_asy_callback_free; 1118 1119 fp = &xfer->send.hdr; 1120 fp->mode.ld[1] = 0; 1121 if (root_node >= 0) 1122 fp->mode.ld[1] |= (root_node & 0x3f) << 24 | 1 << 23; 1123 if (gap_count >= 0) 1124 fp->mode.ld[1] |= 1 << 22 | (gap_count & 0x3f) << 16; 1125 fp->mode.ld[2] = ~fp->mode.ld[1]; 1126/* XXX Dangerous, how to pass PHY packet to device driver */ 1127 fp->mode.common.tcode |= FWTCODE_PHY; 1128 1129 if (firewire_debug) 1130 printf("send phy_config root_node=%d gap_count=%d\n", 1131 root_node, gap_count); 1132 fw_asyreq(fc, -1, xfer); 1133} 1134 1135#if 0 1136/* 1137 * Dump self ID. 1138 */ 1139static void 1140fw_print_sid(uint32_t sid) 1141{ 1142 union fw_self_id *s; 1143 s = (union fw_self_id *) &sid; 1144 printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d" 1145 " p0:%d p1:%d p2:%d i:%d m:%d\n", 1146 s->p0.phy_id, s->p0.link_active, s->p0.gap_count, 1147 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender, 1148 s->p0.power_class, s->p0.port0, s->p0.port1, 1149 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets); 1150} 1151#endif 1152 1153/* 1154 * To receive self ID. 1155 */ 1156void fw_sidrcv(struct firewire_comm* fc, uint32_t *sid, u_int len) 1157{ 1158 uint32_t *p; 1159 union fw_self_id *self_id; 1160 u_int i, j, node, c_port = 0, i_branch = 0; 1161 1162 fc->sid_cnt = len /(sizeof(uint32_t) * 2); 1163 fc->status = FWBUSINIT; 1164 fc->max_node = fc->nodeid & 0x3f; 1165 CSRARC(fc, NODE_IDS) = ((uint32_t)fc->nodeid) << 16; 1166 fc->status = FWBUSCYMELECT; 1167 fc->topology_map->crc_len = 2; 1168 fc->topology_map->generation ++; 1169 fc->topology_map->self_id_count = 0; 1170 fc->topology_map->node_count = 0; 1171 fc->speed_map->generation ++; 1172 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4; 1173 self_id = &fc->topology_map->self_id[0]; 1174 for(i = 0; i < fc->sid_cnt; i ++){ 1175 if (sid[1] != ~sid[0]) { 1176 printf("fw_sidrcv: invalid self-id packet\n"); 1177 sid += 2; 1178 continue; 1179 } 1180 *self_id = *((union fw_self_id *)sid); 1181 fc->topology_map->crc_len++; 1182 if(self_id->p0.sequel == 0){ 1183 fc->topology_map->node_count ++; 1184 c_port = 0; 1185#if 0 1186 fw_print_sid(sid[0]); 1187#endif 1188 node = self_id->p0.phy_id; 1189 if(fc->max_node < node){ 1190 fc->max_node = self_id->p0.phy_id; 1191 } 1192 /* XXX I'm not sure this is the right speed_map */ 1193 fc->speed_map->speed[node][node] 1194 = self_id->p0.phy_speed; 1195 for (j = 0; j < node; j ++) { 1196 fc->speed_map->speed[j][node] 1197 = fc->speed_map->speed[node][j] 1198 = min(fc->speed_map->speed[j][j], 1199 self_id->p0.phy_speed); 1200 } 1201 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) && 1202 (self_id->p0.link_active && self_id->p0.contender)) { 1203 fc->irm = self_id->p0.phy_id; 1204 } 1205 if(self_id->p0.port0 >= 0x2){ 1206 c_port++; 1207 } 1208 if(self_id->p0.port1 >= 0x2){ 1209 c_port++; 1210 } 1211 if(self_id->p0.port2 >= 0x2){ 1212 c_port++; 1213 } 1214 } 1215 if(c_port > 2){ 1216 i_branch += (c_port - 2); 1217 } 1218 sid += 2; 1219 self_id++; 1220 fc->topology_map->self_id_count ++; 1221 } 1222 device_printf(fc->bdev, "%d nodes", fc->max_node + 1); 1223 /* CRC */ 1224 fc->topology_map->crc = fw_crc16( 1225 (uint32_t *)&fc->topology_map->generation, 1226 fc->topology_map->crc_len * 4); 1227 fc->speed_map->crc = fw_crc16( 1228 (uint32_t *)&fc->speed_map->generation, 1229 fc->speed_map->crc_len * 4); 1230 /* byteswap and copy to CSR */ 1231 p = (uint32_t *)fc->topology_map; 1232 for (i = 0; i <= fc->topology_map->crc_len; i++) 1233 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++); 1234 p = (uint32_t *)fc->speed_map; 1235 CSRARC(fc, SPED_MAP) = htonl(*p++); 1236 CSRARC(fc, SPED_MAP + 4) = htonl(*p++); 1237 /* don't byte-swap uint8_t array */ 1238 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4); 1239 1240 fc->max_hop = fc->max_node - i_branch; 1241 printf(", maxhop <= %d", fc->max_hop); 1242 1243 if(fc->irm == -1 ){ 1244 printf(", Not found IRM capable node"); 1245 }else{ 1246 printf(", cable IRM = %d", fc->irm); 1247 if (fc->irm == fc->nodeid) 1248 printf(" (me)"); 1249 } 1250 printf("\n"); 1251 1252 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) { 1253 if (fc->irm == fc->nodeid) { 1254 fc->status = FWBUSMGRDONE; 1255 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm); 1256 fw_bmr(fc); 1257 } else { 1258 fc->status = FWBUSMGRELECT; 1259 callout_reset(&fc->bmr_callout, hz/8, 1260 (void *)fw_try_bmr, (void *)fc); 1261 } 1262 } else 1263 fc->status = FWBUSMGRDONE; 1264 1265 callout_reset(&fc->busprobe_callout, hz/4, 1266 (void *)fw_bus_probe, (void *)fc); 1267} 1268 1269/* 1270 * To probe devices on the IEEE1394 bus. 1271 */ 1272static void 1273fw_bus_probe(struct firewire_comm *fc) 1274{ 1275 int s; 1276 struct fw_device *fwdev; 1277 1278 s = splfw(); 1279 fc->status = FWBUSEXPLORE; 1280 fc->retry_count = 0; 1281 1282 /* Invalidate all devices, just after bus reset. */ 1283 STAILQ_FOREACH(fwdev, &fc->devices, link) 1284 if (fwdev->status != FWDEVINVAL) { 1285 fwdev->status = FWDEVINVAL; 1286 fwdev->rcnt = 0; 1287 } 1288 1289 fc->ongonode = 0; 1290 fc->ongoaddr = CSRROMOFF; 1291 fc->ongodev = NULL; 1292 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1293 fw_bus_explore(fc); 1294 splx(s); 1295} 1296 1297/* 1298 * Find the self_id packet for a node, ignoring sequels. 1299 */ 1300static union fw_self_id * 1301fw_find_self_id(struct firewire_comm *fc, int node) 1302{ 1303 uint32_t i; 1304 union fw_self_id *s; 1305 1306 for (i = 0; i < fc->topology_map->self_id_count; i++) { 1307 s = &fc->topology_map->self_id[i]; 1308 if (s->p0.sequel) 1309 continue; 1310 if (s->p0.phy_id == node) 1311 return s; 1312 } 1313 return 0; 1314} 1315 1316/* 1317 * To collect device informations on the IEEE1394 bus. 1318 */ 1319static void 1320fw_bus_explore(struct firewire_comm *fc ) 1321{ 1322 int err = 0; 1323 struct fw_device *fwdev, *pfwdev, *tfwdev; 1324 uint32_t addr; 1325 struct fw_xfer *xfer; 1326 struct fw_pkt *fp; 1327 union fw_self_id *fwsid; 1328 1329 if(fc->status != FWBUSEXPLORE) 1330 return; 1331 1332loop: 1333 if(fc->ongonode == fc->nodeid) fc->ongonode++; 1334 1335 if(fc->ongonode > fc->max_node) goto done; 1336 if(fc->ongonode >= 0x3f) goto done; 1337 1338 /* check link */ 1339 /* XXX we need to check phy_id first */ 1340 fwsid = fw_find_self_id(fc, fc->ongonode); 1341 if (!fwsid || !fwsid->p0.link_active) { 1342 if (firewire_debug) 1343 printf("node%d: link down\n", fc->ongonode); 1344 fc->ongonode++; 1345 goto loop; 1346 } 1347 1348 if(fc->ongoaddr <= CSRROMOFF && 1349 fc->ongoeui.hi == 0xffffffff && 1350 fc->ongoeui.lo == 0xffffffff ){ 1351 fc->ongoaddr = CSRROMOFF; 1352 addr = 0xf0000000 | fc->ongoaddr; 1353 }else if(fc->ongoeui.hi == 0xffffffff ){ 1354 fc->ongoaddr = CSRROMOFF + 0xc; 1355 addr = 0xf0000000 | fc->ongoaddr; 1356 }else if(fc->ongoeui.lo == 0xffffffff ){ 1357 fc->ongoaddr = CSRROMOFF + 0x10; 1358 addr = 0xf0000000 | fc->ongoaddr; 1359 }else if(fc->ongodev == NULL){ 1360 STAILQ_FOREACH(fwdev, &fc->devices, link) 1361 if (FW_EUI64_EQUAL(fwdev->eui, fc->ongoeui)) 1362 break; 1363 if(fwdev != NULL){ 1364 fwdev->dst = fc->ongonode; 1365 fwdev->status = FWDEVINIT; 1366 fc->ongodev = fwdev; 1367 fc->ongoaddr = CSRROMOFF; 1368 addr = 0xf0000000 | fc->ongoaddr; 1369 goto dorequest; 1370 } 1371 fwdev = malloc(sizeof(struct fw_device), M_FW, 1372 M_NOWAIT | M_ZERO); 1373 if(fwdev == NULL) 1374 return; 1375 fwdev->fc = fc; 1376 fwdev->rommax = 0; 1377 fwdev->dst = fc->ongonode; 1378 fwdev->eui.hi = fc->ongoeui.hi; fwdev->eui.lo = fc->ongoeui.lo; 1379 fwdev->status = FWDEVINIT; 1380 fwdev->speed = fc->speed_map->speed[fc->nodeid][fc->ongonode]; 1381 1382 pfwdev = NULL; 1383 STAILQ_FOREACH(tfwdev, &fc->devices, link) { 1384 if (tfwdev->eui.hi > fwdev->eui.hi || 1385 (tfwdev->eui.hi == fwdev->eui.hi && 1386 tfwdev->eui.lo > fwdev->eui.lo)) 1387 break; 1388 pfwdev = tfwdev; 1389 } 1390 if (pfwdev == NULL) 1391 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link); 1392 else 1393 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link); 1394 1395 device_printf(fc->bdev, "New %s device ID:%08x%08x\n", 1396 linkspeed[fwdev->speed], 1397 fc->ongoeui.hi, fc->ongoeui.lo); 1398 1399 fc->ongodev = fwdev; 1400 fc->ongoaddr = CSRROMOFF; 1401 addr = 0xf0000000 | fc->ongoaddr; 1402 }else{ 1403 addr = 0xf0000000 | fc->ongoaddr; 1404 } 1405dorequest: 1406#if 0 1407 xfer = asyreqq(fc, FWSPD_S100, 0, 0, 1408 ((FWLOCALBUS | fc->ongonode) << 16) | 0xffff , addr, 1409 fw_bus_explore_callback); 1410 if(xfer == NULL) goto done; 1411#else 1412 xfer = fw_xfer_alloc(M_FWXFER); 1413 if(xfer == NULL){ 1414 goto done; 1415 } 1416 xfer->send.spd = 0; 1417 fp = &xfer->send.hdr; 1418 fp->mode.rreqq.dest_hi = 0xffff; 1419 fp->mode.rreqq.tlrt = 0; 1420 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1421 fp->mode.rreqq.pri = 0; 1422 fp->mode.rreqq.src = 0; 1423 fp->mode.rreqq.dst = FWLOCALBUS | fc->ongonode; 1424 fp->mode.rreqq.dest_lo = addr; 1425 xfer->act.hand = fw_bus_explore_callback; 1426 1427 if (firewire_debug) 1428 printf("node%d: explore addr=0x%x\n", 1429 fc->ongonode, fc->ongoaddr); 1430 err = fw_asyreq(fc, -1, xfer); 1431 if(err){ 1432 fw_xfer_free( xfer); 1433 return; 1434 } 1435#endif 1436 return; 1437done: 1438 /* fw_attach_devs */ 1439 fc->status = FWBUSEXPDONE; 1440 if (firewire_debug) 1441 printf("bus_explore done\n"); 1442 fw_attach_dev(fc); 1443 return; 1444 1445} 1446 1447/* Portable Async. request read quad */ 1448struct fw_xfer * 1449asyreqq(struct firewire_comm *fc, uint8_t spd, uint8_t tl, uint8_t rt, 1450 uint32_t addr_hi, uint32_t addr_lo, 1451 void (*hand) (struct fw_xfer*)) 1452{ 1453 struct fw_xfer *xfer; 1454 struct fw_pkt *fp; 1455 int err; 1456 1457 xfer = fw_xfer_alloc(M_FWXFER); 1458 if (xfer == NULL) 1459 return NULL; 1460 1461 xfer->send.spd = spd; /* XXX:min(spd, fc->spd) */ 1462 fp = &xfer->send.hdr; 1463 fp->mode.rreqq.dest_hi = addr_hi & 0xffff; 1464 if(tl & FWP_TL_VALID){ 1465 fp->mode.rreqq.tlrt = (tl & 0x3f) << 2; 1466 }else{ 1467 fp->mode.rreqq.tlrt = 0; 1468 } 1469 fp->mode.rreqq.tlrt |= rt & 0x3; 1470 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1471 fp->mode.rreqq.pri = 0; 1472 fp->mode.rreqq.src = 0; 1473 fp->mode.rreqq.dst = addr_hi >> 16; 1474 fp->mode.rreqq.dest_lo = addr_lo; 1475 xfer->act.hand = hand; 1476 1477 err = fw_asyreq(fc, -1, xfer); 1478 if(err){ 1479 fw_xfer_free( xfer); 1480 return NULL; 1481 } 1482 return xfer; 1483} 1484 1485/* 1486 * Callback for the IEEE1394 bus information collection. 1487 */ 1488static void 1489fw_bus_explore_callback(struct fw_xfer *xfer) 1490{ 1491 struct firewire_comm *fc; 1492 struct fw_pkt *sfp,*rfp; 1493 struct csrhdr *chdr; 1494 struct csrdir *csrd; 1495 struct csrreg *csrreg; 1496 uint32_t offset; 1497 1498 1499 if(xfer == NULL) { 1500 printf("xfer == NULL\n"); 1501 return; 1502 } 1503 fc = xfer->fc; 1504 1505 if (firewire_debug) 1506 printf("node%d: callback addr=0x%x\n", 1507 fc->ongonode, fc->ongoaddr); 1508 1509 if(xfer->resp != 0){ 1510 device_printf(fc->bdev, 1511 "bus_explore node=%d addr=0x%x resp=%d retry=%d\n", 1512 fc->ongonode, fc->ongoaddr, xfer->resp, xfer->retry); 1513 if (xfer->retry < fc->max_asyretry) { 1514 fw_asystart(xfer); 1515 return; 1516 } 1517 goto errnode; 1518 } 1519 1520 sfp = &xfer->send.hdr; 1521 rfp = &xfer->recv.hdr; 1522#if 0 1523 { 1524 uint32_t *qld; 1525 int i; 1526 qld = (uint32_t *)xfer->recv.buf; 1527 printf("len:%d\n", xfer->recv.len); 1528 for( i = 0 ; i <= xfer->recv.len && i < 32; i+= 4){ 1529 printf("0x%08x ", rfp->mode.ld[i/4]); 1530 if((i % 16) == 15) printf("\n"); 1531 } 1532 if((i % 16) != 15) printf("\n"); 1533 } 1534#endif 1535 if(fc->ongodev == NULL){ 1536 if(sfp->mode.rreqq.dest_lo == (0xf0000000 | CSRROMOFF)){ 1537 rfp->mode.rresq.data = ntohl(rfp->mode.rresq.data); 1538 chdr = (struct csrhdr *)(&rfp->mode.rresq.data); 1539/* If CSR is minimal confinguration, more investigation is not needed. */ 1540 if(chdr->info_len == 1){ 1541 if (firewire_debug) 1542 printf("node%d: minimal config\n", 1543 fc->ongonode); 1544 goto nextnode; 1545 }else{ 1546 fc->ongoaddr = CSRROMOFF + 0xc; 1547 } 1548 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0xc))){ 1549 fc->ongoeui.hi = ntohl(rfp->mode.rresq.data); 1550 fc->ongoaddr = CSRROMOFF + 0x10; 1551 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0x10))){ 1552 fc->ongoeui.lo = ntohl(rfp->mode.rresq.data); 1553 if (fc->ongoeui.hi == 0 && fc->ongoeui.lo == 0) { 1554 if (firewire_debug) 1555 printf("node%d: eui64 is zero.\n", 1556 fc->ongonode); 1557 goto nextnode; 1558 } 1559 fc->ongoaddr = CSRROMOFF; 1560 } 1561 }else{ 1562 if (fc->ongoaddr == CSRROMOFF && 1563 fc->ongodev->csrrom[0] == ntohl(rfp->mode.rresq.data)) { 1564 fc->ongodev->status = FWDEVATTACHED; 1565 goto nextnode; 1566 } 1567 fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4] = ntohl(rfp->mode.rresq.data); 1568 if(fc->ongoaddr > fc->ongodev->rommax){ 1569 fc->ongodev->rommax = fc->ongoaddr; 1570 } 1571 csrd = SLIST_FIRST(&fc->ongocsr); 1572 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1573 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1574 offset = CSRROMOFF; 1575 }else{ 1576 chdr = (struct csrhdr *)&fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]; 1577 offset = csrd->off; 1578 } 1579 if(fc->ongoaddr > (CSRROMOFF + 0x14) && fc->ongoaddr != offset){ 1580 csrreg = (struct csrreg *)&fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4]; 1581 if( csrreg->key == 0x81 || csrreg->key == 0xd1){ 1582 csrd = SLIST_FIRST(&fc->csrfree); 1583 if(csrd == NULL){ 1584 goto nextnode; 1585 }else{ 1586 csrd->ongoaddr = fc->ongoaddr; 1587 fc->ongoaddr += csrreg->val * 4; 1588 csrd->off = fc->ongoaddr; 1589 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1590 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1591 goto nextaddr; 1592 } 1593 } 1594 } 1595 fc->ongoaddr += 4; 1596 if(((fc->ongoaddr - offset)/4 > chdr->crc_len) && 1597 (fc->ongodev->rommax < 0x414)){ 1598 if(fc->ongodev->rommax <= 0x414){ 1599 csrd = SLIST_FIRST(&fc->csrfree); 1600 if(csrd == NULL) goto nextnode; 1601 csrd->off = fc->ongoaddr; 1602 csrd->ongoaddr = fc->ongoaddr; 1603 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1604 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1605 } 1606 goto nextaddr; 1607 } 1608 1609 while(((fc->ongoaddr - offset)/4 > chdr->crc_len)){ 1610 if(csrd == NULL){ 1611 goto nextnode; 1612 }; 1613 fc->ongoaddr = csrd->ongoaddr + 4; 1614 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1615 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1616 csrd = SLIST_FIRST(&fc->ongocsr); 1617 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1618 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1619 offset = CSRROMOFF; 1620 }else{ 1621 chdr = (struct csrhdr *)&(fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]); 1622 offset = csrd->off; 1623 } 1624 } 1625 if((fc->ongoaddr - CSRROMOFF) > CSRROMSIZE){ 1626 goto nextnode; 1627 } 1628 } 1629nextaddr: 1630 fw_xfer_free( xfer); 1631 fw_bus_explore(fc); 1632 return; 1633errnode: 1634 fc->retry_count++; 1635 if (fc->ongodev != NULL) { 1636 fc->ongodev->status = FWDEVINVAL; 1637 /* Invalidate ROM */ 1638 fc->ongodev->csrrom[0] = 0; 1639 } 1640nextnode: 1641 fw_xfer_free( xfer); 1642 fc->ongonode++; 1643/* housekeeping work space */ 1644 fc->ongoaddr = CSRROMOFF; 1645 fc->ongodev = NULL; 1646 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1647 while((csrd = SLIST_FIRST(&fc->ongocsr)) != NULL){ 1648 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1649 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1650 } 1651 fw_bus_explore(fc); 1652 return; 1653} 1654 1655/* 1656 * To attach sub-devices layer onto IEEE1394 bus. 1657 */ 1658static void 1659fw_attach_dev(struct firewire_comm *fc) 1660{ 1661 struct fw_device *fwdev, *next; 1662 int i, err; 1663 device_t *devlistp; 1664 int devcnt; 1665 struct firewire_dev_comm *fdc; 1666 1667 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1668 next = STAILQ_NEXT(fwdev, link); 1669 if (fwdev->status == FWDEVINIT) { 1670 fwdev->status = FWDEVATTACHED; 1671 } else if (fwdev->status == FWDEVINVAL) { 1672 fwdev->rcnt ++; 1673 if (fwdev->rcnt > hold_count) { 1674 /* 1675 * Remove devices which have not been seen 1676 * for a while. 1677 */ 1678 STAILQ_REMOVE(&fc->devices, fwdev, fw_device, 1679 link); 1680 free(fwdev, M_FW); 1681 } 1682 } 1683 } 1684 1685 err = device_get_children(fc->bdev, &devlistp, &devcnt); 1686 if( err != 0 ) 1687 return; 1688 for( i = 0 ; i < devcnt ; i++){ 1689 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 1690 fdc = device_get_softc(devlistp[i]); 1691 if (fdc->post_explore != NULL) 1692 fdc->post_explore(fdc); 1693 } 1694 } 1695 free(devlistp, M_TEMP); 1696 1697 if (fc->retry_count > 0) { 1698 device_printf(fc->bdev, "bus_explore failed for %d nodes\n", 1699 fc->retry_count); 1700#if 0 1701 callout_reset(&fc->retry_probe_callout, hz*2, 1702 (void *)fc->ibr, (void *)fc); 1703#endif 1704 } 1705 return; 1706} 1707 1708/* 1709 * To allocate unique transaction label. 1710 */ 1711static int 1712fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer) 1713{ 1714 u_int i; 1715 struct tlabel *tl, *tmptl; 1716 int s; 1717 static uint32_t label = 0; 1718 1719 s = splfw(); 1720 for( i = 0 ; i < 0x40 ; i ++){ 1721 label = (label + 1) & 0x3f; 1722 for(tmptl = STAILQ_FIRST(&fc->tlabels[label]); 1723 tmptl != NULL; tmptl = STAILQ_NEXT(tmptl, link)){ 1724 if (tmptl->xfer->send.hdr.mode.hdr.dst == 1725 xfer->send.hdr.mode.hdr.dst) 1726 break; 1727 } 1728 if(tmptl == NULL) { 1729 tl = malloc(sizeof(struct tlabel),M_FW,M_NOWAIT); 1730 if (tl == NULL) { 1731 splx(s); 1732 return (-1); 1733 } 1734 tl->xfer = xfer; 1735 STAILQ_INSERT_TAIL(&fc->tlabels[label], tl, link); 1736 splx(s); 1737 if (firewire_debug > 1) 1738 printf("fw_get_tlabel: dst=%d tl=%d\n", 1739 xfer->send.hdr.mode.hdr.dst, label); 1740 return(label); 1741 } 1742 } 1743 splx(s); 1744 1745 if (firewire_debug > 1) 1746 printf("fw_get_tlabel: no free tlabel\n"); 1747 return(-1); 1748} 1749 1750static void 1751fw_rcv_copy(struct fw_rcv_buf *rb) 1752{ 1753 struct fw_pkt *pkt; 1754 u_char *p; 1755 struct tcode_info *tinfo; 1756 u_int res, i, len, plen; 1757 1758 rb->xfer->recv.spd -= rb->spd; 1759 1760 pkt = (struct fw_pkt *)rb->vec->iov_base; 1761 tinfo = &rb->fc->tcode[pkt->mode.hdr.tcode]; 1762 1763 /* Copy header */ 1764 p = (u_char *)&rb->xfer->recv.hdr; 1765 bcopy(rb->vec->iov_base, p, tinfo->hdr_len); 1766 rb->vec->iov_base = (u_char *)rb->vec->iov_base + tinfo->hdr_len; 1767 rb->vec->iov_len -= tinfo->hdr_len; 1768 1769 /* Copy payload */ 1770 p = (u_char *)rb->xfer->recv.payload; 1771 res = rb->xfer->recv.pay_len; 1772 1773 /* special handling for RRESQ */ 1774 if (pkt->mode.hdr.tcode == FWTCODE_RRESQ && 1775 p != NULL && res >= sizeof(uint32_t)) { 1776 *(uint32_t *)p = pkt->mode.rresq.data; 1777 rb->xfer->recv.pay_len = sizeof(uint32_t); 1778 return; 1779 } 1780 1781 if ((tinfo->flag & FWTI_BLOCK_ASY) == 0) 1782 return; 1783 1784 plen = pkt->mode.rresb.len; 1785 1786 for (i = 0; i < rb->nvec; i++, rb->vec++) { 1787 len = MIN(rb->vec->iov_len, plen); 1788 if (res < len) { 1789 printf("rcv buffer(%d) is %d bytes short.\n", 1790 rb->xfer->recv.pay_len, len - res); 1791 len = res; 1792 } 1793 bcopy(rb->vec->iov_base, p, len); 1794 p += len; 1795 res -= len; 1796 plen -= len; 1797 if (res == 0 || plen == 0) 1798 break; 1799 } 1800 rb->xfer->recv.pay_len -= res; 1801 1802} 1803 1804/* 1805 * Generic packet receiving process. 1806 */ 1807void 1808fw_rcv(struct fw_rcv_buf *rb) 1809{ 1810 struct fw_pkt *fp, *resfp; 1811 struct fw_bind *bind; 1812 int tcode, s; 1813 int i, len, oldstate; 1814#if 0 1815 { 1816 uint32_t *qld; 1817 int i; 1818 qld = (uint32_t *)buf; 1819 printf("spd %d len:%d\n", spd, len); 1820 for( i = 0 ; i <= len && i < 32; i+= 4){ 1821 printf("0x%08x ", ntohl(qld[i/4])); 1822 if((i % 16) == 15) printf("\n"); 1823 } 1824 if((i % 16) != 15) printf("\n"); 1825 } 1826#endif 1827 fp = (struct fw_pkt *)rb->vec[0].iov_base; 1828 tcode = fp->mode.common.tcode; 1829 switch (tcode) { 1830 case FWTCODE_WRES: 1831 case FWTCODE_RRESQ: 1832 case FWTCODE_RRESB: 1833 case FWTCODE_LRES: 1834 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1835 fp->mode.hdr.tlrt >> 2); 1836 if(rb->xfer == NULL) { 1837 printf("fw_rcv: unknown response " 1838 "%s(%x) src=0x%x tl=0x%x rt=%d data=0x%x\n", 1839 tcode_str[tcode], tcode, 1840 fp->mode.hdr.src, 1841 fp->mode.hdr.tlrt >> 2, 1842 fp->mode.hdr.tlrt & 3, 1843 fp->mode.rresq.data); 1844#if 1 1845 printf("try ad-hoc work around!!\n"); 1846 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1847 (fp->mode.hdr.tlrt >> 2)^3); 1848 if (rb->xfer == NULL) { 1849 printf("no use...\n"); 1850 goto err; 1851 } 1852#else 1853 goto err; 1854#endif 1855 } 1856 fw_rcv_copy(rb); 1857 if (rb->xfer->recv.hdr.mode.wres.rtcode != RESP_CMP) 1858 rb->xfer->resp = EIO; 1859 else 1860 rb->xfer->resp = 0; 1861 /* make sure the packet is drained in AT queue */ 1862 oldstate = rb->xfer->state; 1863 rb->xfer->state = FWXF_RCVD; 1864 switch (oldstate) { 1865 case FWXF_SENT: 1866 fw_xfer_done(rb->xfer); 1867 break; 1868 case FWXF_START: 1869#if 0 1870 if (firewire_debug) 1871 printf("not sent yet tl=%x\n", rb->xfer->tl); 1872#endif 1873 break; 1874 default: 1875 printf("unexpected state %d\n", rb->xfer->state); 1876 } 1877 return; 1878 case FWTCODE_WREQQ: 1879 case FWTCODE_WREQB: 1880 case FWTCODE_RREQQ: 1881 case FWTCODE_RREQB: 1882 case FWTCODE_LREQ: 1883 bind = fw_bindlookup(rb->fc, fp->mode.rreqq.dest_hi, 1884 fp->mode.rreqq.dest_lo); 1885 if(bind == NULL){ 1886 printf("Unknown service addr 0x%04x:0x%08x %s(%x)" 1887#if defined(__DragonFly__) || __FreeBSD_version < 500000 1888 " src=0x%x data=%lx\n", 1889#else 1890 " src=0x%x data=%x\n", 1891#endif 1892 fp->mode.wreqq.dest_hi, fp->mode.wreqq.dest_lo, 1893 tcode_str[tcode], tcode, 1894 fp->mode.hdr.src, ntohl(fp->mode.wreqq.data)); 1895 if (rb->fc->status == FWBUSRESET) { 1896 printf("fw_rcv: cannot respond(bus reset)!\n"); 1897 goto err; 1898 } 1899 rb->xfer = fw_xfer_alloc(M_FWXFER); 1900 if(rb->xfer == NULL){ 1901 return; 1902 } 1903 rb->xfer->send.spd = rb->spd; 1904 rb->xfer->send.pay_len = 0; 1905 resfp = &rb->xfer->send.hdr; 1906 switch (tcode) { 1907 case FWTCODE_WREQQ: 1908 case FWTCODE_WREQB: 1909 resfp->mode.hdr.tcode = FWTCODE_WRES; 1910 break; 1911 case FWTCODE_RREQQ: 1912 resfp->mode.hdr.tcode = FWTCODE_RRESQ; 1913 break; 1914 case FWTCODE_RREQB: 1915 resfp->mode.hdr.tcode = FWTCODE_RRESB; 1916 break; 1917 case FWTCODE_LREQ: 1918 resfp->mode.hdr.tcode = FWTCODE_LRES; 1919 break; 1920 } 1921 resfp->mode.hdr.dst = fp->mode.hdr.src; 1922 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt; 1923 resfp->mode.hdr.pri = fp->mode.hdr.pri; 1924 resfp->mode.rresb.rtcode = RESP_ADDRESS_ERROR; 1925 resfp->mode.rresb.extcode = 0; 1926 resfp->mode.rresb.len = 0; 1927/* 1928 rb->xfer->act.hand = fw_asy_callback; 1929*/ 1930 rb->xfer->act.hand = fw_xfer_free; 1931 if(fw_asyreq(rb->fc, -1, rb->xfer)){ 1932 fw_xfer_free(rb->xfer); 1933 return; 1934 } 1935 goto err; 1936 } 1937 len = 0; 1938 for (i = 0; i < rb->nvec; i ++) 1939 len += rb->vec[i].iov_len; 1940 switch(bind->act_type){ 1941 case FWACT_XFER: 1942 /* splfw()?? */ 1943 rb->xfer = STAILQ_FIRST(&bind->xferlist); 1944 if (rb->xfer == NULL) { 1945 printf("Discard a packet for this bind.\n"); 1946 goto err; 1947 } 1948 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 1949 fw_rcv_copy(rb); 1950 rb->xfer->act.hand(rb->xfer); 1951 return; 1952 break; 1953 case FWACT_CH: 1954 if(rb->fc->ir[bind->sub]->queued >= 1955 rb->fc->ir[bind->sub]->maxq){ 1956 device_printf(rb->fc->bdev, 1957 "Discard a packet %x %d\n", 1958 bind->sub, 1959 rb->fc->ir[bind->sub]->queued); 1960 goto err; 1961 } 1962 rb->xfer = STAILQ_FIRST(&bind->xferlist); 1963 if (rb->xfer == NULL) { 1964 printf("Discard packet for this bind\n"); 1965 goto err; 1966 } 1967 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 1968 fw_rcv_copy(rb); 1969 s = splfw(); 1970 rb->fc->ir[bind->sub]->queued++; 1971 STAILQ_INSERT_TAIL(&rb->fc->ir[bind->sub]->q, 1972 rb->xfer, link); 1973 splx(s); 1974 1975 wakeup((caddr_t)rb->fc->ir[bind->sub]); 1976 1977 return; 1978 break; 1979 default: 1980 goto err; 1981 break; 1982 } 1983 break; 1984#if 0 /* shouldn't happen ?? or for GASP */ 1985 case FWTCODE_STREAM: 1986 { 1987 struct fw_xferq *xferq; 1988 1989 xferq = rb->fc->ir[sub]; 1990#if 0 1991 printf("stream rcv dma %d len %d off %d spd %d\n", 1992 sub, len, off, spd); 1993#endif 1994 if(xferq->queued >= xferq->maxq) { 1995 printf("receive queue is full\n"); 1996 goto err; 1997 } 1998 /* XXX get xfer from xfer queue, we don't need copy for 1999 per packet mode */ 2000 rb->xfer = fw_xfer_alloc_buf(M_FWXFER, 0, /* XXX */ 2001 vec[0].iov_len); 2002 if (rb->xfer == NULL) goto err; 2003 fw_rcv_copy(rb) 2004 s = splfw(); 2005 xferq->queued++; 2006 STAILQ_INSERT_TAIL(&xferq->q, rb->xfer, link); 2007 splx(s); 2008 sc = device_get_softc(rb->fc->bdev); 2009#if defined(__DragonFly__) || __FreeBSD_version < 500000 2010 if (&xferq->rsel.si_pid != 0) 2011#else 2012 if (SEL_WAITING(&xferq->rsel)) 2013#endif 2014 selwakeuppri(&xferq->rsel, FWPRI); 2015 if (xferq->flag & FWXFERQ_WAKEUP) { 2016 xferq->flag &= ~FWXFERQ_WAKEUP; 2017 wakeup((caddr_t)xferq); 2018 } 2019 if (xferq->flag & FWXFERQ_HANDLER) { 2020 xferq->hand(xferq); 2021 } 2022 return; 2023 break; 2024 } 2025#endif 2026 default: 2027 printf("fw_rcv: unknow tcode %d\n", tcode); 2028 break; 2029 } 2030err: 2031 return; 2032} 2033 2034/* 2035 * Post process for Bus Manager election process. 2036 */ 2037static void 2038fw_try_bmr_callback(struct fw_xfer *xfer) 2039{ 2040 struct firewire_comm *fc; 2041 int bmr; 2042 2043 if (xfer == NULL) 2044 return; 2045 fc = xfer->fc; 2046 if (xfer->resp != 0) 2047 goto error; 2048 if (xfer->recv.payload == NULL) 2049 goto error; 2050 if (xfer->recv.hdr.mode.lres.rtcode != FWRCODE_COMPLETE) 2051 goto error; 2052 2053 bmr = ntohl(xfer->recv.payload[0]); 2054 if (bmr == 0x3f) 2055 bmr = fc->nodeid; 2056 2057 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f); 2058 fw_xfer_free_buf(xfer); 2059 fw_bmr(fc); 2060 return; 2061 2062error: 2063 device_printf(fc->bdev, "bus manager election failed\n"); 2064 fw_xfer_free_buf(xfer); 2065} 2066 2067 2068/* 2069 * To candidate Bus Manager election process. 2070 */ 2071static void 2072fw_try_bmr(void *arg) 2073{ 2074 struct fw_xfer *xfer; 2075 struct firewire_comm *fc = (struct firewire_comm *)arg; 2076 struct fw_pkt *fp; 2077 int err = 0; 2078 2079 xfer = fw_xfer_alloc_buf(M_FWXFER, 8, 4); 2080 if(xfer == NULL){ 2081 return; 2082 } 2083 xfer->send.spd = 0; 2084 fc->status = FWBUSMGRELECT; 2085 2086 fp = &xfer->send.hdr; 2087 fp->mode.lreq.dest_hi = 0xffff; 2088 fp->mode.lreq.tlrt = 0; 2089 fp->mode.lreq.tcode = FWTCODE_LREQ; 2090 fp->mode.lreq.pri = 0; 2091 fp->mode.lreq.src = 0; 2092 fp->mode.lreq.len = 8; 2093 fp->mode.lreq.extcode = EXTCODE_CMP_SWAP; 2094 fp->mode.lreq.dst = FWLOCALBUS | fc->irm; 2095 fp->mode.lreq.dest_lo = 0xf0000000 | BUS_MGR_ID; 2096 xfer->send.payload[0] = htonl(0x3f); 2097 xfer->send.payload[1] = htonl(fc->nodeid); 2098 xfer->act.hand = fw_try_bmr_callback; 2099 2100 err = fw_asyreq(fc, -1, xfer); 2101 if(err){ 2102 fw_xfer_free_buf(xfer); 2103 return; 2104 } 2105 return; 2106} 2107 2108#ifdef FW_VMACCESS 2109/* 2110 * Software implementation for physical memory block access. 2111 * XXX:Too slow, usef for debug purpose only. 2112 */ 2113static void 2114fw_vmaccess(struct fw_xfer *xfer){ 2115 struct fw_pkt *rfp, *sfp = NULL; 2116 uint32_t *ld = (uint32_t *)xfer->recv.buf; 2117 2118 printf("vmaccess spd:%2x len:%03x data:%08x %08x %08x %08x\n", 2119 xfer->spd, xfer->recv.len, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 2120 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 2121 if(xfer->resp != 0){ 2122 fw_xfer_free( xfer); 2123 return; 2124 } 2125 if(xfer->recv.buf == NULL){ 2126 fw_xfer_free( xfer); 2127 return; 2128 } 2129 rfp = (struct fw_pkt *)xfer->recv.buf; 2130 switch(rfp->mode.hdr.tcode){ 2131 /* XXX need fix for 64bit arch */ 2132 case FWTCODE_WREQB: 2133 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2134 xfer->send.len = 12; 2135 sfp = (struct fw_pkt *)xfer->send.buf; 2136 bcopy(rfp->mode.wreqb.payload, 2137 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len)); 2138 sfp->mode.wres.tcode = FWTCODE_WRES; 2139 sfp->mode.wres.rtcode = 0; 2140 break; 2141 case FWTCODE_WREQQ: 2142 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2143 xfer->send.len = 12; 2144 sfp->mode.wres.tcode = FWTCODE_WRES; 2145 *((uint32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data; 2146 sfp->mode.wres.rtcode = 0; 2147 break; 2148 case FWTCODE_RREQB: 2149 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_FW, M_NOWAIT); 2150 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len); 2151 sfp = (struct fw_pkt *)xfer->send.buf; 2152 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo), 2153 sfp->mode.rresb.payload, (uint16_t)ntohs(rfp->mode.rreqb.len)); 2154 sfp->mode.rresb.tcode = FWTCODE_RRESB; 2155 sfp->mode.rresb.len = rfp->mode.rreqb.len; 2156 sfp->mode.rresb.rtcode = 0; 2157 sfp->mode.rresb.extcode = 0; 2158 break; 2159 case FWTCODE_RREQQ: 2160 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 2161 xfer->send.len = 16; 2162 sfp = (struct fw_pkt *)xfer->send.buf; 2163 sfp->mode.rresq.data = *(uint32_t *)(ntohl(rfp->mode.rreqq.dest_lo)); 2164 sfp->mode.wres.tcode = FWTCODE_RRESQ; 2165 sfp->mode.rresb.rtcode = 0; 2166 break; 2167 default: 2168 fw_xfer_free( xfer); 2169 return; 2170 } 2171 sfp->mode.hdr.dst = rfp->mode.hdr.src; 2172 xfer->dst = ntohs(rfp->mode.hdr.src); 2173 xfer->act.hand = fw_xfer_free; 2174 xfer->retry_req = fw_asybusy; 2175 2176 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt; 2177 sfp->mode.hdr.pri = 0; 2178 2179 fw_asyreq(xfer->fc, -1, xfer); 2180/**/ 2181 return; 2182} 2183#endif 2184 2185/* 2186 * CRC16 check-sum for IEEE1394 register blocks. 2187 */ 2188uint16_t 2189fw_crc16(uint32_t *ptr, uint32_t len){ 2190 uint32_t i, sum, crc = 0; 2191 int shift; 2192 len = (len + 3) & ~3; 2193 for(i = 0 ; i < len ; i+= 4){ 2194 for( shift = 28 ; shift >= 0 ; shift -= 4){ 2195 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf; 2196 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum; 2197 } 2198 crc &= 0xffff; 2199 } 2200 return((uint16_t) crc); 2201} 2202 2203static int 2204fw_bmr(struct firewire_comm *fc) 2205{ 2206 struct fw_device fwdev; 2207 union fw_self_id *self_id; 2208 int cmstr; 2209 uint32_t quad; 2210 2211 /* Check to see if the current root node is cycle master capable */ 2212 self_id = fw_find_self_id(fc, fc->max_node); 2213 if (fc->max_node > 0) { 2214 /* XXX check cmc bit of businfo block rather than contender */ 2215 if (self_id->p0.link_active && self_id->p0.contender) 2216 cmstr = fc->max_node; 2217 else { 2218 device_printf(fc->bdev, 2219 "root node is not cycle master capable\n"); 2220 /* XXX shall we be the cycle master? */ 2221 cmstr = fc->nodeid; 2222 /* XXX need bus reset */ 2223 } 2224 } else 2225 cmstr = -1; 2226 2227 device_printf(fc->bdev, "bus manager %d ", CSRARC(fc, BUS_MGR_ID)); 2228 if(CSRARC(fc, BUS_MGR_ID) != fc->nodeid) { 2229 /* We are not the bus manager */ 2230 printf("\n"); 2231 return(0); 2232 } 2233 printf("(me)\n"); 2234 2235 /* Optimize gapcount */ 2236 if(fc->max_hop <= MAX_GAPHOP ) 2237 fw_phy_config(fc, cmstr, gap_cnt[fc->max_hop]); 2238 /* If we are the cycle master, nothing to do */ 2239 if (cmstr == fc->nodeid || cmstr == -1) 2240 return 0; 2241 /* Bus probe has not finished, make dummy fwdev for cmstr */ 2242 bzero(&fwdev, sizeof(fwdev)); 2243 fwdev.fc = fc; 2244 fwdev.dst = cmstr; 2245 fwdev.speed = 0; 2246 fwdev.maxrec = 8; /* 512 */ 2247 fwdev.status = FWDEVINIT; 2248 /* Set cmstr bit on the cycle master */ 2249 quad = htonl(1 << 8); 2250 fwmem_write_quad(&fwdev, NULL, 0/*spd*/, 2251 0xffff, 0xf0000000 | STATE_SET, &quad, fw_asy_callback_free); 2252 2253 return 0; 2254} 2255 2256static int 2257fw_modevent(module_t mode, int type, void *data) 2258{ 2259 int err = 0; 2260#if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2261 static eventhandler_tag fwdev_ehtag = NULL; 2262#endif 2263 2264 switch (type) { 2265 case MOD_LOAD: 2266#if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2267 fwdev_ehtag = EVENTHANDLER_REGISTER(dev_clone, 2268 fwdev_clone, 0, 1000); 2269#endif 2270 break; 2271 case MOD_UNLOAD: 2272#if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2273 if (fwdev_ehtag != NULL) 2274 EVENTHANDLER_DEREGISTER(dev_clone, fwdev_ehtag); 2275#endif 2276 break; 2277 case MOD_SHUTDOWN: 2278 break; 2279 default: 2280 return (EOPNOTSUPP); 2281 } 2282 return (err); 2283} 2284 2285 2286#ifdef __DragonFly__ 2287DECLARE_DUMMY_MODULE(firewire); 2288#endif 2289DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,fw_modevent,0); 2290MODULE_VERSION(firewire, 1); 2291