firewire.c revision 167630
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 167630 2007-03-16 05:11:42Z 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; 260 261 fw_asystart(xfer); 262 return err; 263} 264/* 265 * Wakeup blocked process. 266 */ 267void 268fw_asy_callback(struct fw_xfer *xfer){ 269 wakeup(xfer); 270 return; 271} 272/* 273 * Postpone to later retry. 274 */ 275void fw_asybusy(struct fw_xfer *xfer){ 276 printf("fw_asybusy\n"); 277/* 278 xfer->ch = timeout((timeout_t *)fw_asystart, (void *)xfer, 20000); 279*/ 280#if 0 281 DELAY(20000); 282#endif 283 fw_asystart(xfer); 284 return; 285} 286 287/* 288 * Async. request with given xfer structure. 289 */ 290static void 291fw_asystart(struct fw_xfer *xfer) 292{ 293 struct firewire_comm *fc = xfer->fc; 294 int s; 295#if 0 /* XXX allow bus explore packets only after bus rest */ 296 if (fc->status < FWBUSEXPLORE) { 297 xfer->resp = EAGAIN; 298 xfer->state = FWXF_BUSY; 299 if (xfer->act.hand != NULL) 300 xfer->act.hand(xfer); 301 return; 302 } 303#endif 304 microtime(&xfer->tv); 305 s = splfw(); 306 xfer->state = FWXF_INQ; 307 STAILQ_INSERT_TAIL(&xfer->q->q, xfer, link); 308 xfer->q->queued ++; 309 splx(s); 310 /* XXX just queue for mbuf */ 311 if (xfer->mbuf == NULL) 312 xfer->q->start(fc); 313 return; 314} 315 316static void 317firewire_identify(driver_t *driver, device_t parent) 318{ 319 BUS_ADD_CHILD(parent, 0, "firewire", -1); 320} 321 322static int 323firewire_probe(device_t dev) 324{ 325 device_set_desc(dev, "IEEE1394(FireWire) bus"); 326 return (0); 327} 328 329static void 330firewire_xfer_timeout(struct firewire_comm *fc) 331{ 332 struct fw_xfer *xfer; 333 struct tlabel *tl; 334 struct timeval tv; 335 struct timeval split_timeout; 336 int i, s; 337 338 split_timeout.tv_sec = 0; 339 split_timeout.tv_usec = 200 * 1000; /* 200 msec */ 340 341 microtime(&tv); 342 timevalsub(&tv, &split_timeout); 343 344 s = splfw(); 345 for (i = 0; i < 0x40; i ++) { 346 while ((tl = STAILQ_FIRST(&fc->tlabels[i])) != NULL) { 347 xfer = tl->xfer; 348 if (timevalcmp(&xfer->tv, &tv, >)) 349 /* the rests are newer than this */ 350 break; 351 if (xfer->state == FWXF_START) 352 /* not sent yet */ 353 break; 354 device_printf(fc->bdev, 355 "split transaction timeout dst=0x%x tl=0x%x state=%d\n", 356 xfer->send.hdr.mode.hdr.dst, i, xfer->state); 357 xfer->resp = ETIMEDOUT; 358 STAILQ_REMOVE_HEAD(&fc->tlabels[i], link); 359 fw_xfer_done(xfer); 360 } 361 } 362 splx(s); 363} 364 365#define WATCHDOC_HZ 10 366static void 367firewire_watchdog(void *arg) 368{ 369 struct firewire_comm *fc; 370 static int watchdoc_clock = 0; 371 372 fc = (struct firewire_comm *)arg; 373 374 /* 375 * At boot stage, the device interrupt is disabled and 376 * We encounter a timeout easily. To avoid this, 377 * ignore clock interrupt for a while. 378 */ 379 if (watchdoc_clock > WATCHDOC_HZ * 15) { 380 firewire_xfer_timeout(fc); 381 fc->timeout(fc); 382 } else 383 watchdoc_clock ++; 384 385 callout_reset(&fc->timeout_callout, hz / WATCHDOC_HZ, 386 (void *)firewire_watchdog, (void *)fc); 387} 388 389/* 390 * The attach routine. 391 */ 392static int 393firewire_attach(device_t dev) 394{ 395 int unit; 396 struct firewire_softc *sc = device_get_softc(dev); 397 device_t pa = device_get_parent(dev); 398 struct firewire_comm *fc; 399 400 fc = (struct firewire_comm *)device_get_softc(pa); 401 sc->fc = fc; 402 fc->status = FWBUSNOTREADY; 403 404 unit = device_get_unit(dev); 405 if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA; 406 407 fwdev_makedev(sc); 408 409 CALLOUT_INIT(&sc->fc->timeout_callout); 410 CALLOUT_INIT(&sc->fc->bmr_callout); 411 CALLOUT_INIT(&sc->fc->busprobe_callout); 412 413 callout_reset(&sc->fc->timeout_callout, hz, 414 (void *)firewire_watchdog, (void *)sc->fc); 415 416 /* Locate our children */ 417 bus_generic_probe(dev); 418 419 /* launch attachement of the added children */ 420 bus_generic_attach(dev); 421 422 /* bus_reset */ 423 fw_busreset(fc); 424 fc->ibr(fc); 425 426 return 0; 427} 428 429/* 430 * Attach it as child. 431 */ 432static device_t 433firewire_add_child(device_t dev, int order, const char *name, int unit) 434{ 435 device_t child; 436 struct firewire_softc *sc; 437 438 sc = (struct firewire_softc *)device_get_softc(dev); 439 child = device_add_child(dev, name, unit); 440 if (child) { 441 device_set_ivars(child, sc->fc); 442 device_probe_and_attach(child); 443 } 444 445 return child; 446} 447 448static int 449firewire_resume(device_t dev) 450{ 451 struct firewire_softc *sc; 452 453 sc = (struct firewire_softc *)device_get_softc(dev); 454 sc->fc->status = FWBUSNOTREADY; 455 456 bus_generic_resume(dev); 457 458 return(0); 459} 460 461/* 462 * Dettach it. 463 */ 464static int 465firewire_detach(device_t dev) 466{ 467 struct firewire_softc *sc; 468 struct csrdir *csrd, *next; 469 struct fw_device *fwdev, *fwdev_next; 470 int err; 471 472 sc = (struct firewire_softc *)device_get_softc(dev); 473 if ((err = fwdev_destroydev(sc)) != 0) 474 return err; 475 476 if ((err = bus_generic_detach(dev)) != 0) 477 return err; 478 479 callout_stop(&sc->fc->timeout_callout); 480 callout_stop(&sc->fc->bmr_callout); 481 callout_stop(&sc->fc->busprobe_callout); 482 483 /* XXX xfree_free and untimeout on all xfers */ 484 for (fwdev = STAILQ_FIRST(&sc->fc->devices); fwdev != NULL; 485 fwdev = fwdev_next) { 486 fwdev_next = STAILQ_NEXT(fwdev, link); 487 free(fwdev, M_FW); 488 } 489 for (csrd = SLIST_FIRST(&sc->fc->csrfree); csrd != NULL; csrd = next) { 490 next = SLIST_NEXT(csrd, link); 491 free(csrd, M_FW); 492 } 493 free(sc->fc->topology_map, M_FW); 494 free(sc->fc->speed_map, M_FW); 495 free(sc->fc->crom_src_buf, M_FW); 496 return(0); 497} 498#if 0 499static int 500firewire_shutdown( device_t dev ) 501{ 502 return 0; 503} 504#endif 505 506 507static void 508fw_xferq_drain(struct fw_xferq *xferq) 509{ 510 struct fw_xfer *xfer; 511 512 while ((xfer = STAILQ_FIRST(&xferq->q)) != NULL) { 513 STAILQ_REMOVE_HEAD(&xferq->q, link); 514 xferq->queued --; 515 xfer->resp = EAGAIN; 516 fw_xfer_done(xfer); 517 } 518} 519 520void 521fw_drain_txq(struct firewire_comm *fc) 522{ 523 int i; 524 525 fw_xferq_drain(fc->atq); 526 fw_xferq_drain(fc->ats); 527 for(i = 0; i < fc->nisodma; i++) 528 fw_xferq_drain(fc->it[i]); 529} 530 531static void 532fw_reset_csr(struct firewire_comm *fc) 533{ 534 int i; 535 536 CSRARC(fc, STATE_CLEAR) 537 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 538 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 539 CSRARC(fc, NODE_IDS) = 0x3f; 540 541 CSRARC(fc, TOPO_MAP + 8) = 0; 542 fc->irm = -1; 543 544 fc->max_node = -1; 545 546 for(i = 2; i < 0x100/4 - 2 ; i++){ 547 CSRARC(fc, SPED_MAP + i * 4) = 0; 548 } 549 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 550 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 551 CSRARC(fc, RESET_START) = 0; 552 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0; 553 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19; 554 CSRARC(fc, CYCLE_TIME) = 0x0; 555 CSRARC(fc, BUS_TIME) = 0x0; 556 CSRARC(fc, BUS_MGR_ID) = 0x3f; 557 CSRARC(fc, BANDWIDTH_AV) = 4915; 558 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff; 559 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff; 560 CSRARC(fc, IP_CHANNELS) = (1 << 31); 561 562 CSRARC(fc, CONF_ROM) = 0x04 << 24; 563 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */ 564 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 | 565 1 << 28 | 0xff << 16 | 0x09 << 8; 566 CSRARC(fc, CONF_ROM + 0xc) = 0; 567 568/* DV depend CSRs see blue book */ 569 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON; 570 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON; 571 572 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 ); 573 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 574} 575 576static void 577fw_init_crom(struct firewire_comm *fc) 578{ 579 struct crom_src *src; 580 581 fc->crom_src_buf = (struct crom_src_buf *) 582 malloc(sizeof(struct crom_src_buf), M_FW, M_WAITOK | M_ZERO); 583 if (fc->crom_src_buf == NULL) 584 return; 585 586 src = &fc->crom_src_buf->src; 587 bzero(src, sizeof(struct crom_src)); 588 589 /* BUS info sample */ 590 src->hdr.info_len = 4; 591 592 src->businfo.bus_name = CSR_BUS_NAME_IEEE1394; 593 594 src->businfo.irmc = 1; 595 src->businfo.cmc = 1; 596 src->businfo.isc = 1; 597 src->businfo.bmc = 1; 598 src->businfo.pmc = 0; 599 src->businfo.cyc_clk_acc = 100; 600 src->businfo.max_rec = fc->maxrec; 601 src->businfo.max_rom = MAXROM_4; 602 src->businfo.generation = 1; 603 src->businfo.link_spd = fc->speed; 604 605 src->businfo.eui64.hi = fc->eui.hi; 606 src->businfo.eui64.lo = fc->eui.lo; 607 608 STAILQ_INIT(&src->chunk_list); 609 610 fc->crom_src = src; 611 fc->crom_root = &fc->crom_src_buf->root; 612} 613 614static void 615fw_reset_crom(struct firewire_comm *fc) 616{ 617 struct crom_src_buf *buf; 618 struct crom_src *src; 619 struct crom_chunk *root; 620 621 if (fc->crom_src_buf == NULL) 622 fw_init_crom(fc); 623 624 buf = fc->crom_src_buf; 625 src = fc->crom_src; 626 root = fc->crom_root; 627 628 STAILQ_INIT(&src->chunk_list); 629 630 bzero(root, sizeof(struct crom_chunk)); 631 crom_add_chunk(src, NULL, root, 0); 632 crom_add_entry(root, CSRKEY_NCAP, 0x0083c0); /* XXX */ 633 /* private company_id */ 634 crom_add_entry(root, CSRKEY_VENDOR, CSRVAL_VENDOR_PRIVATE); 635#ifdef __DragonFly__ 636 crom_add_simple_text(src, root, &buf->vendor, "DragonFly Project"); 637 crom_add_entry(root, CSRKEY_HW, __DragonFly_cc_version); 638#else 639 crom_add_simple_text(src, root, &buf->vendor, "FreeBSD Project"); 640 crom_add_entry(root, CSRKEY_HW, __FreeBSD_version); 641#endif 642 crom_add_simple_text(src, root, &buf->hw, hostname); 643} 644 645/* 646 * Called after bus reset. 647 */ 648void 649fw_busreset(struct firewire_comm *fc) 650{ 651 struct firewire_dev_comm *fdc; 652 struct crom_src *src; 653 device_t *devlistp; 654 void *newrom; 655 int i, devcnt; 656 657 switch(fc->status){ 658 case FWBUSMGRELECT: 659 callout_stop(&fc->bmr_callout); 660 break; 661 default: 662 break; 663 } 664 fc->status = FWBUSRESET; 665 fw_reset_csr(fc); 666 fw_reset_crom(fc); 667 668 if (device_get_children(fc->bdev, &devlistp, &devcnt) == 0) { 669 for( i = 0 ; i < devcnt ; i++) 670 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 671 fdc = device_get_softc(devlistp[i]); 672 if (fdc->post_busreset != NULL) 673 fdc->post_busreset(fdc); 674 } 675 free(devlistp, M_TEMP); 676 } 677 678 newrom = malloc(CROMSIZE, M_FW, M_NOWAIT | M_ZERO); 679 src = &fc->crom_src_buf->src; 680 crom_load(src, (uint32_t *)newrom, CROMSIZE); 681 if (bcmp(newrom, fc->config_rom, CROMSIZE) != 0) { 682 /* bump generation and reload */ 683 src->businfo.generation ++; 684 /* generation must be between 0x2 and 0xF */ 685 if (src->businfo.generation < 2) 686 src->businfo.generation ++; 687 crom_load(src, (uint32_t *)newrom, CROMSIZE); 688 bcopy(newrom, (void *)fc->config_rom, CROMSIZE); 689 } 690 free(newrom, M_FW); 691} 692 693/* Call once after reboot */ 694void fw_init(struct firewire_comm *fc) 695{ 696 int i; 697 struct csrdir *csrd; 698#ifdef FW_VMACCESS 699 struct fw_xfer *xfer; 700 struct fw_bind *fwb; 701#endif 702 703 fc->arq->queued = 0; 704 fc->ars->queued = 0; 705 fc->atq->queued = 0; 706 fc->ats->queued = 0; 707 708 fc->arq->buf = NULL; 709 fc->ars->buf = NULL; 710 fc->atq->buf = NULL; 711 fc->ats->buf = NULL; 712 713 fc->arq->flag = 0; 714 fc->ars->flag = 0; 715 fc->atq->flag = 0; 716 fc->ats->flag = 0; 717 718 STAILQ_INIT(&fc->atq->q); 719 STAILQ_INIT(&fc->ats->q); 720 721 for( i = 0 ; i < fc->nisodma ; i ++ ){ 722 fc->it[i]->queued = 0; 723 fc->ir[i]->queued = 0; 724 725 fc->it[i]->start = NULL; 726 fc->ir[i]->start = NULL; 727 728 fc->it[i]->buf = NULL; 729 fc->ir[i]->buf = NULL; 730 731 fc->it[i]->flag = FWXFERQ_STREAM; 732 fc->ir[i]->flag = FWXFERQ_STREAM; 733 734 STAILQ_INIT(&fc->it[i]->q); 735 STAILQ_INIT(&fc->ir[i]->q); 736 737 STAILQ_INIT(&fc->it[i]->binds); 738 STAILQ_INIT(&fc->ir[i]->binds); 739 } 740 741 fc->arq->maxq = FWMAXQUEUE; 742 fc->ars->maxq = FWMAXQUEUE; 743 fc->atq->maxq = FWMAXQUEUE; 744 fc->ats->maxq = FWMAXQUEUE; 745 746 for( i = 0 ; i < fc->nisodma ; i++){ 747 fc->ir[i]->maxq = FWMAXQUEUE; 748 fc->it[i]->maxq = FWMAXQUEUE; 749 } 750/* Initialize csr registers */ 751 fc->topology_map = (struct fw_topology_map *)malloc( 752 sizeof(struct fw_topology_map), 753 M_FW, M_NOWAIT | M_ZERO); 754 fc->speed_map = (struct fw_speed_map *)malloc( 755 sizeof(struct fw_speed_map), 756 M_FW, M_NOWAIT | M_ZERO); 757 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16; 758 CSRARC(fc, TOPO_MAP + 4) = 1; 759 CSRARC(fc, SPED_MAP) = 0x3f1 << 16; 760 CSRARC(fc, SPED_MAP + 4) = 1; 761 762 STAILQ_INIT(&fc->devices); 763 764/* Initialize csr ROM work space */ 765 SLIST_INIT(&fc->ongocsr); 766 SLIST_INIT(&fc->csrfree); 767 for( i = 0 ; i < FWMAXCSRDIR ; i++){ 768 csrd = (struct csrdir *) malloc(sizeof(struct csrdir), M_FW,M_NOWAIT); 769 if(csrd == NULL) break; 770 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 771 } 772 773/* Initialize Async handlers */ 774 STAILQ_INIT(&fc->binds); 775 for( i = 0 ; i < 0x40 ; i++){ 776 STAILQ_INIT(&fc->tlabels[i]); 777 } 778 779/* DV depend CSRs see blue book */ 780#if 0 781 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */ 782 CSRARC(fc, oPCR) = 0x8000007a; 783 for(i = 4 ; i < 0x7c/4 ; i+=4){ 784 CSRARC(fc, i + oPCR) = 0x8000007a; 785 } 786 787 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */ 788 CSRARC(fc, iPCR) = 0x803f0000; 789 for(i = 4 ; i < 0x7c/4 ; i+=4){ 790 CSRARC(fc, i + iPCR) = 0x0; 791 } 792#endif 793 794 fc->crom_src_buf = NULL; 795 796#ifdef FW_VMACCESS 797 xfer = fw_xfer_alloc(); 798 if(xfer == NULL) return; 799 800 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_FW, M_NOWAIT); 801 if(fwb == NULL){ 802 fw_xfer_free(xfer); 803 return; 804 } 805 xfer->act.hand = fw_vmaccess; 806 xfer->fc = fc; 807 xfer->sc = NULL; 808 809 fwb->start_hi = 0x2; 810 fwb->start_lo = 0; 811 fwb->addrlen = 0xffffffff; 812 fwb->xfer = xfer; 813 fw_bindadd(fc, fwb); 814#endif 815} 816 817#define BIND_CMP(addr, fwb) (((addr) < (fwb)->start)?-1:\ 818 ((fwb)->end < (addr))?1:0) 819 820/* 821 * To lookup bound process from IEEE1394 address. 822 */ 823struct fw_bind * 824fw_bindlookup(struct firewire_comm *fc, uint16_t dest_hi, uint32_t dest_lo) 825{ 826 u_int64_t addr; 827 struct fw_bind *tfw; 828 829 addr = ((u_int64_t)dest_hi << 32) | dest_lo; 830 STAILQ_FOREACH(tfw, &fc->binds, fclist) 831 if (tfw->act_type != FWACT_NULL && BIND_CMP(addr, tfw) == 0) 832 return(tfw); 833 return(NULL); 834} 835 836/* 837 * To bind IEEE1394 address block to process. 838 */ 839int 840fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb) 841{ 842 struct fw_bind *tfw, *prev = NULL; 843 844 if (fwb->start > fwb->end) { 845 printf("%s: invalid range\n", __func__); 846 return EINVAL; 847 } 848 849 STAILQ_FOREACH(tfw, &fc->binds, fclist) { 850 if (fwb->end < tfw->start) 851 break; 852 prev = tfw; 853 } 854 if (prev == NULL) { 855 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 856 goto out; 857 } 858 if (prev->end < fwb->start) { 859 STAILQ_INSERT_AFTER(&fc->binds, prev, fwb, fclist); 860 goto out; 861 } 862 863 printf("%s: bind failed\n", __func__); 864 return (EBUSY); 865 866out: 867 if (fwb->act_type == FWACT_CH) 868 STAILQ_INSERT_HEAD(&fc->ir[fwb->sub]->binds, fwb, chlist); 869 return (0); 870} 871 872/* 873 * To free IEEE1394 address block. 874 */ 875int 876fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb) 877{ 878#if 0 879 struct fw_xfer *xfer, *next; 880#endif 881 struct fw_bind *tfw; 882 int s; 883 884 s = splfw(); 885 STAILQ_FOREACH(tfw, &fc->binds, fclist) 886 if (tfw == fwb) { 887 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist); 888 goto found; 889 } 890 891 printf("%s: no such binding\n", __func__); 892 splx(s); 893 return (1); 894found: 895#if 0 896 /* shall we do this? */ 897 for (xfer = STAILQ_FIRST(&fwb->xferlist); xfer != NULL; xfer = next) { 898 next = STAILQ_NEXT(xfer, link); 899 fw_xfer_free(xfer); 900 } 901 STAILQ_INIT(&fwb->xferlist); 902#endif 903 904 splx(s); 905 return 0; 906} 907 908/* 909 * To free transaction label. 910 */ 911static void 912fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer) 913{ 914 struct tlabel *tl; 915 int s = splfw(); 916 917 for( tl = STAILQ_FIRST(&fc->tlabels[xfer->tl]); tl != NULL; 918 tl = STAILQ_NEXT(tl, link)){ 919 if(tl->xfer == xfer){ 920 STAILQ_REMOVE(&fc->tlabels[xfer->tl], tl, tlabel, link); 921 free(tl, M_FW); 922 splx(s); 923 return; 924 } 925 } 926 splx(s); 927 return; 928} 929 930/* 931 * To obtain XFER structure by transaction label. 932 */ 933static struct fw_xfer * 934fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel) 935{ 936 struct fw_xfer *xfer; 937 struct tlabel *tl; 938 int s = splfw(); 939 940 for( tl = STAILQ_FIRST(&fc->tlabels[tlabel]); tl != NULL; 941 tl = STAILQ_NEXT(tl, link)){ 942 if(tl->xfer->send.hdr.mode.hdr.dst == node){ 943 xfer = tl->xfer; 944 splx(s); 945 if (firewire_debug > 2) 946 printf("fw_tl2xfer: found tl=%d\n", tlabel); 947 return(xfer); 948 } 949 } 950 if (firewire_debug > 1) 951 printf("fw_tl2xfer: not found tl=%d\n", tlabel); 952 splx(s); 953 return(NULL); 954} 955 956/* 957 * To allocate IEEE1394 XFER structure. 958 */ 959struct fw_xfer * 960fw_xfer_alloc(struct malloc_type *type) 961{ 962 struct fw_xfer *xfer; 963 964 xfer = malloc(sizeof(struct fw_xfer), type, M_NOWAIT | M_ZERO); 965 if (xfer == NULL) 966 return xfer; 967 968 xfer->malloc = type; 969 970 return xfer; 971} 972 973struct fw_xfer * 974fw_xfer_alloc_buf(struct malloc_type *type, int send_len, int recv_len) 975{ 976 struct fw_xfer *xfer; 977 978 xfer = fw_xfer_alloc(type); 979 if (xfer == NULL) 980 return(NULL); 981 xfer->send.pay_len = send_len; 982 xfer->recv.pay_len = recv_len; 983 if (send_len > 0) { 984 xfer->send.payload = malloc(send_len, type, M_NOWAIT | M_ZERO); 985 if (xfer->send.payload == NULL) { 986 fw_xfer_free(xfer); 987 return(NULL); 988 } 989 } 990 if (recv_len > 0) { 991 xfer->recv.payload = malloc(recv_len, type, M_NOWAIT); 992 if (xfer->recv.payload == NULL) { 993 if (xfer->send.payload != NULL) 994 free(xfer->send.payload, type); 995 fw_xfer_free(xfer); 996 return(NULL); 997 } 998 } 999 return(xfer); 1000} 1001 1002/* 1003 * IEEE1394 XFER post process. 1004 */ 1005void 1006fw_xfer_done(struct fw_xfer *xfer) 1007{ 1008 if (xfer->act.hand == NULL) { 1009 printf("act.hand == NULL\n"); 1010 return; 1011 } 1012 1013 if (xfer->fc == NULL) 1014 panic("fw_xfer_done: why xfer->fc is NULL?"); 1015 1016 xfer->act.hand(xfer); 1017} 1018 1019void 1020fw_xfer_unload(struct fw_xfer* xfer) 1021{ 1022 int s; 1023 1024 if(xfer == NULL ) return; 1025 if(xfer->state == FWXF_INQ){ 1026 printf("fw_xfer_free FWXF_INQ\n"); 1027 s = splfw(); 1028 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link); 1029 xfer->q->queued --; 1030 splx(s); 1031 } 1032 if (xfer->fc != NULL) { 1033#if 1 1034 if(xfer->state == FWXF_START) 1035 /* 1036 * This could happen if: 1037 * 1. We call fwohci_arcv() before fwohci_txd(). 1038 * 2. firewire_watch() is called. 1039 */ 1040 printf("fw_xfer_free FWXF_START\n"); 1041#endif 1042 fw_tl_free(xfer->fc, xfer); 1043 } 1044 xfer->state = FWXF_INIT; 1045 xfer->resp = 0; 1046} 1047/* 1048 * To free IEEE1394 XFER structure. 1049 */ 1050void 1051fw_xfer_free_buf( struct fw_xfer* xfer) 1052{ 1053 if (xfer == NULL) { 1054 printf("%s: xfer == NULL\n", __func__); 1055 return; 1056 } 1057 fw_xfer_unload(xfer); 1058 if(xfer->send.payload != NULL){ 1059 free(xfer->send.payload, xfer->malloc); 1060 } 1061 if(xfer->recv.payload != NULL){ 1062 free(xfer->recv.payload, xfer->malloc); 1063 } 1064 free(xfer, xfer->malloc); 1065} 1066 1067void 1068fw_xfer_free( struct fw_xfer* xfer) 1069{ 1070 if (xfer == NULL) { 1071 printf("%s: xfer == NULL\n", __func__); 1072 return; 1073 } 1074 fw_xfer_unload(xfer); 1075 free(xfer, xfer->malloc); 1076} 1077 1078void 1079fw_asy_callback_free(struct fw_xfer *xfer) 1080{ 1081#if 0 1082 printf("asyreq done state=%d resp=%d\n", 1083 xfer->state, xfer->resp); 1084#endif 1085 fw_xfer_free(xfer); 1086} 1087 1088/* 1089 * To configure PHY. 1090 */ 1091static void 1092fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count) 1093{ 1094 struct fw_xfer *xfer; 1095 struct fw_pkt *fp; 1096 1097 fc->status = FWBUSPHYCONF; 1098 1099 xfer = fw_xfer_alloc(M_FWXFER); 1100 if (xfer == NULL) 1101 return; 1102 xfer->fc = fc; 1103 xfer->act.hand = fw_asy_callback_free; 1104 1105 fp = &xfer->send.hdr; 1106 fp->mode.ld[1] = 0; 1107 if (root_node >= 0) 1108 fp->mode.ld[1] |= (root_node & 0x3f) << 24 | 1 << 23; 1109 if (gap_count >= 0) 1110 fp->mode.ld[1] |= 1 << 22 | (gap_count & 0x3f) << 16; 1111 fp->mode.ld[2] = ~fp->mode.ld[1]; 1112/* XXX Dangerous, how to pass PHY packet to device driver */ 1113 fp->mode.common.tcode |= FWTCODE_PHY; 1114 1115 if (firewire_debug) 1116 printf("send phy_config root_node=%d gap_count=%d\n", 1117 root_node, gap_count); 1118 fw_asyreq(fc, -1, xfer); 1119} 1120 1121#if 0 1122/* 1123 * Dump self ID. 1124 */ 1125static void 1126fw_print_sid(uint32_t sid) 1127{ 1128 union fw_self_id *s; 1129 s = (union fw_self_id *) &sid; 1130 printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d" 1131 " p0:%d p1:%d p2:%d i:%d m:%d\n", 1132 s->p0.phy_id, s->p0.link_active, s->p0.gap_count, 1133 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender, 1134 s->p0.power_class, s->p0.port0, s->p0.port1, 1135 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets); 1136} 1137#endif 1138 1139/* 1140 * To receive self ID. 1141 */ 1142void fw_sidrcv(struct firewire_comm* fc, uint32_t *sid, u_int len) 1143{ 1144 uint32_t *p; 1145 union fw_self_id *self_id; 1146 u_int i, j, node, c_port = 0, i_branch = 0; 1147 1148 fc->sid_cnt = len /(sizeof(uint32_t) * 2); 1149 fc->status = FWBUSINIT; 1150 fc->max_node = fc->nodeid & 0x3f; 1151 CSRARC(fc, NODE_IDS) = ((uint32_t)fc->nodeid) << 16; 1152 fc->status = FWBUSCYMELECT; 1153 fc->topology_map->crc_len = 2; 1154 fc->topology_map->generation ++; 1155 fc->topology_map->self_id_count = 0; 1156 fc->topology_map->node_count = 0; 1157 fc->speed_map->generation ++; 1158 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4; 1159 self_id = &fc->topology_map->self_id[0]; 1160 for(i = 0; i < fc->sid_cnt; i ++){ 1161 if (sid[1] != ~sid[0]) { 1162 printf("fw_sidrcv: invalid self-id packet\n"); 1163 sid += 2; 1164 continue; 1165 } 1166 *self_id = *((union fw_self_id *)sid); 1167 fc->topology_map->crc_len++; 1168 if(self_id->p0.sequel == 0){ 1169 fc->topology_map->node_count ++; 1170 c_port = 0; 1171#if 0 1172 fw_print_sid(sid[0]); 1173#endif 1174 node = self_id->p0.phy_id; 1175 if(fc->max_node < node){ 1176 fc->max_node = self_id->p0.phy_id; 1177 } 1178 /* XXX I'm not sure this is the right speed_map */ 1179 fc->speed_map->speed[node][node] 1180 = self_id->p0.phy_speed; 1181 for (j = 0; j < node; j ++) { 1182 fc->speed_map->speed[j][node] 1183 = fc->speed_map->speed[node][j] 1184 = min(fc->speed_map->speed[j][j], 1185 self_id->p0.phy_speed); 1186 } 1187 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) && 1188 (self_id->p0.link_active && self_id->p0.contender)) { 1189 fc->irm = self_id->p0.phy_id; 1190 } 1191 if(self_id->p0.port0 >= 0x2){ 1192 c_port++; 1193 } 1194 if(self_id->p0.port1 >= 0x2){ 1195 c_port++; 1196 } 1197 if(self_id->p0.port2 >= 0x2){ 1198 c_port++; 1199 } 1200 } 1201 if(c_port > 2){ 1202 i_branch += (c_port - 2); 1203 } 1204 sid += 2; 1205 self_id++; 1206 fc->topology_map->self_id_count ++; 1207 } 1208 device_printf(fc->bdev, "%d nodes", fc->max_node + 1); 1209 /* CRC */ 1210 fc->topology_map->crc = fw_crc16( 1211 (uint32_t *)&fc->topology_map->generation, 1212 fc->topology_map->crc_len * 4); 1213 fc->speed_map->crc = fw_crc16( 1214 (uint32_t *)&fc->speed_map->generation, 1215 fc->speed_map->crc_len * 4); 1216 /* byteswap and copy to CSR */ 1217 p = (uint32_t *)fc->topology_map; 1218 for (i = 0; i <= fc->topology_map->crc_len; i++) 1219 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++); 1220 p = (uint32_t *)fc->speed_map; 1221 CSRARC(fc, SPED_MAP) = htonl(*p++); 1222 CSRARC(fc, SPED_MAP + 4) = htonl(*p++); 1223 /* don't byte-swap uint8_t array */ 1224 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4); 1225 1226 fc->max_hop = fc->max_node - i_branch; 1227 printf(", maxhop <= %d", fc->max_hop); 1228 1229 if(fc->irm == -1 ){ 1230 printf(", Not found IRM capable node"); 1231 }else{ 1232 printf(", cable IRM = %d", fc->irm); 1233 if (fc->irm == fc->nodeid) 1234 printf(" (me)"); 1235 } 1236 printf("\n"); 1237 1238 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) { 1239 if (fc->irm == fc->nodeid) { 1240 fc->status = FWBUSMGRDONE; 1241 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm); 1242 fw_bmr(fc); 1243 } else { 1244 fc->status = FWBUSMGRELECT; 1245 callout_reset(&fc->bmr_callout, hz/8, 1246 (void *)fw_try_bmr, (void *)fc); 1247 } 1248 } else 1249 fc->status = FWBUSMGRDONE; 1250 1251 callout_reset(&fc->busprobe_callout, hz/4, 1252 (void *)fw_bus_probe, (void *)fc); 1253} 1254 1255/* 1256 * To probe devices on the IEEE1394 bus. 1257 */ 1258static void 1259fw_bus_probe(struct firewire_comm *fc) 1260{ 1261 int s; 1262 struct fw_device *fwdev; 1263 1264 s = splfw(); 1265 fc->status = FWBUSEXPLORE; 1266 1267 /* Invalidate all devices, just after bus reset. */ 1268 STAILQ_FOREACH(fwdev, &fc->devices, link) 1269 if (fwdev->status != FWDEVINVAL) { 1270 fwdev->status = FWDEVINVAL; 1271 fwdev->rcnt = 0; 1272 } 1273 1274 fc->ongonode = 0; 1275 fc->ongoaddr = CSRROMOFF; 1276 fc->ongodev = NULL; 1277 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1278 fw_bus_explore(fc); 1279 splx(s); 1280} 1281 1282/* 1283 * Find the self_id packet for a node, ignoring sequels. 1284 */ 1285static union fw_self_id * 1286fw_find_self_id(struct firewire_comm *fc, int node) 1287{ 1288 uint32_t i; 1289 union fw_self_id *s; 1290 1291 for (i = 0; i < fc->topology_map->self_id_count; i++) { 1292 s = &fc->topology_map->self_id[i]; 1293 if (s->p0.sequel) 1294 continue; 1295 if (s->p0.phy_id == node) 1296 return s; 1297 } 1298 return 0; 1299} 1300 1301/* 1302 * To collect device informations on the IEEE1394 bus. 1303 */ 1304static void 1305fw_bus_explore(struct firewire_comm *fc ) 1306{ 1307 int err = 0; 1308 struct fw_device *fwdev, *pfwdev, *tfwdev; 1309 uint32_t addr; 1310 struct fw_xfer *xfer; 1311 struct fw_pkt *fp; 1312 union fw_self_id *fwsid; 1313 1314 if(fc->status != FWBUSEXPLORE) 1315 return; 1316 1317loop: 1318 if(fc->ongonode == fc->nodeid) fc->ongonode++; 1319 1320 if(fc->ongonode > fc->max_node) goto done; 1321 if(fc->ongonode >= 0x3f) goto done; 1322 1323 /* check link */ 1324 /* XXX we need to check phy_id first */ 1325 fwsid = fw_find_self_id(fc, fc->ongonode); 1326 if (!fwsid || !fwsid->p0.link_active) { 1327 if (firewire_debug) 1328 printf("node%d: link down\n", fc->ongonode); 1329 fc->ongonode++; 1330 goto loop; 1331 } 1332 1333 if(fc->ongoaddr <= CSRROMOFF && 1334 fc->ongoeui.hi == 0xffffffff && 1335 fc->ongoeui.lo == 0xffffffff ){ 1336 fc->ongoaddr = CSRROMOFF; 1337 addr = 0xf0000000 | fc->ongoaddr; 1338 }else if(fc->ongoeui.hi == 0xffffffff ){ 1339 fc->ongoaddr = CSRROMOFF + 0xc; 1340 addr = 0xf0000000 | fc->ongoaddr; 1341 }else if(fc->ongoeui.lo == 0xffffffff ){ 1342 fc->ongoaddr = CSRROMOFF + 0x10; 1343 addr = 0xf0000000 | fc->ongoaddr; 1344 }else if(fc->ongodev == NULL){ 1345 STAILQ_FOREACH(fwdev, &fc->devices, link) 1346 if (FW_EUI64_EQUAL(fwdev->eui, fc->ongoeui)) 1347 break; 1348 if(fwdev != NULL){ 1349 fwdev->dst = fc->ongonode; 1350 fwdev->status = FWDEVINIT; 1351 fc->ongodev = fwdev; 1352 fc->ongoaddr = CSRROMOFF; 1353 addr = 0xf0000000 | fc->ongoaddr; 1354 goto dorequest; 1355 } 1356 fwdev = malloc(sizeof(struct fw_device), M_FW, 1357 M_NOWAIT | M_ZERO); 1358 if(fwdev == NULL) 1359 return; 1360 fwdev->fc = fc; 1361 fwdev->rommax = 0; 1362 fwdev->dst = fc->ongonode; 1363 fwdev->eui.hi = fc->ongoeui.hi; fwdev->eui.lo = fc->ongoeui.lo; 1364 fwdev->status = FWDEVINIT; 1365 fwdev->speed = fc->speed_map->speed[fc->nodeid][fc->ongonode]; 1366 1367 pfwdev = NULL; 1368 STAILQ_FOREACH(tfwdev, &fc->devices, link) { 1369 if (tfwdev->eui.hi > fwdev->eui.hi || 1370 (tfwdev->eui.hi == fwdev->eui.hi && 1371 tfwdev->eui.lo > fwdev->eui.lo)) 1372 break; 1373 pfwdev = tfwdev; 1374 } 1375 if (pfwdev == NULL) 1376 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link); 1377 else 1378 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link); 1379 1380 device_printf(fc->bdev, "New %s device ID:%08x%08x\n", 1381 linkspeed[fwdev->speed], 1382 fc->ongoeui.hi, fc->ongoeui.lo); 1383 1384 fc->ongodev = fwdev; 1385 fc->ongoaddr = CSRROMOFF; 1386 addr = 0xf0000000 | fc->ongoaddr; 1387 }else{ 1388 addr = 0xf0000000 | fc->ongoaddr; 1389 } 1390dorequest: 1391#if 0 1392 xfer = asyreqq(fc, FWSPD_S100, 0, 0, 1393 ((FWLOCALBUS | fc->ongonode) << 16) | 0xffff , addr, 1394 fw_bus_explore_callback); 1395 if(xfer == NULL) goto done; 1396#else 1397 xfer = fw_xfer_alloc(M_FWXFER); 1398 if(xfer == NULL){ 1399 goto done; 1400 } 1401 xfer->send.spd = 0; 1402 fp = &xfer->send.hdr; 1403 fp->mode.rreqq.dest_hi = 0xffff; 1404 fp->mode.rreqq.tlrt = 0; 1405 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1406 fp->mode.rreqq.pri = 0; 1407 fp->mode.rreqq.src = 0; 1408 fp->mode.rreqq.dst = FWLOCALBUS | fc->ongonode; 1409 fp->mode.rreqq.dest_lo = addr; 1410 xfer->act.hand = fw_bus_explore_callback; 1411 1412 if (firewire_debug) 1413 printf("node%d: explore addr=0x%x\n", 1414 fc->ongonode, fc->ongoaddr); 1415 err = fw_asyreq(fc, -1, xfer); 1416 if(err){ 1417 fw_xfer_free( xfer); 1418 return; 1419 } 1420#endif 1421 return; 1422done: 1423 /* fw_attach_devs */ 1424 fc->status = FWBUSEXPDONE; 1425 if (firewire_debug) 1426 printf("bus_explore done\n"); 1427 fw_attach_dev(fc); 1428 return; 1429 1430} 1431 1432/* Portable Async. request read quad */ 1433struct fw_xfer * 1434asyreqq(struct firewire_comm *fc, uint8_t spd, uint8_t tl, uint8_t rt, 1435 uint32_t addr_hi, uint32_t addr_lo, 1436 void (*hand) (struct fw_xfer*)) 1437{ 1438 struct fw_xfer *xfer; 1439 struct fw_pkt *fp; 1440 int err; 1441 1442 xfer = fw_xfer_alloc(M_FWXFER); 1443 if (xfer == NULL) 1444 return NULL; 1445 1446 xfer->send.spd = spd; /* XXX:min(spd, fc->spd) */ 1447 fp = &xfer->send.hdr; 1448 fp->mode.rreqq.dest_hi = addr_hi & 0xffff; 1449 if(tl & FWP_TL_VALID){ 1450 fp->mode.rreqq.tlrt = (tl & 0x3f) << 2; 1451 }else{ 1452 fp->mode.rreqq.tlrt = 0; 1453 } 1454 fp->mode.rreqq.tlrt |= rt & 0x3; 1455 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1456 fp->mode.rreqq.pri = 0; 1457 fp->mode.rreqq.src = 0; 1458 fp->mode.rreqq.dst = addr_hi >> 16; 1459 fp->mode.rreqq.dest_lo = addr_lo; 1460 xfer->act.hand = hand; 1461 1462 err = fw_asyreq(fc, -1, xfer); 1463 if(err){ 1464 fw_xfer_free( xfer); 1465 return NULL; 1466 } 1467 return xfer; 1468} 1469 1470/* 1471 * Callback for the IEEE1394 bus information collection. 1472 */ 1473static void 1474fw_bus_explore_callback(struct fw_xfer *xfer) 1475{ 1476 struct firewire_comm *fc; 1477 struct fw_pkt *sfp,*rfp; 1478 struct csrhdr *chdr; 1479 struct csrdir *csrd; 1480 struct csrreg *csrreg; 1481 uint32_t offset; 1482 1483 1484 if(xfer == NULL) { 1485 printf("xfer == NULL\n"); 1486 return; 1487 } 1488 fc = xfer->fc; 1489 1490 if (firewire_debug) 1491 printf("node%d: callback addr=0x%x\n", 1492 fc->ongonode, fc->ongoaddr); 1493 1494 if(xfer->resp != 0){ 1495 device_printf(fc->bdev, 1496 "bus_explore node=%d addr=0x%x resp=%d\n", 1497 fc->ongonode, fc->ongoaddr, xfer->resp); 1498 goto errnode; 1499 } 1500 1501 sfp = &xfer->send.hdr; 1502 rfp = &xfer->recv.hdr; 1503#if 0 1504 { 1505 uint32_t *qld; 1506 int i; 1507 qld = (uint32_t *)xfer->recv.buf; 1508 printf("len:%d\n", xfer->recv.len); 1509 for( i = 0 ; i <= xfer->recv.len && i < 32; i+= 4){ 1510 printf("0x%08x ", rfp->mode.ld[i/4]); 1511 if((i % 16) == 15) printf("\n"); 1512 } 1513 if((i % 16) != 15) printf("\n"); 1514 } 1515#endif 1516 if(fc->ongodev == NULL){ 1517 if(sfp->mode.rreqq.dest_lo == (0xf0000000 | CSRROMOFF)){ 1518 rfp->mode.rresq.data = ntohl(rfp->mode.rresq.data); 1519 chdr = (struct csrhdr *)(&rfp->mode.rresq.data); 1520/* If CSR is minimal confinguration, more investigation is not needed. */ 1521 if(chdr->info_len == 1){ 1522 if (firewire_debug) 1523 printf("node%d: minimal config\n", 1524 fc->ongonode); 1525 goto nextnode; 1526 }else{ 1527 fc->ongoaddr = CSRROMOFF + 0xc; 1528 } 1529 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0xc))){ 1530 fc->ongoeui.hi = ntohl(rfp->mode.rresq.data); 1531 fc->ongoaddr = CSRROMOFF + 0x10; 1532 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0x10))){ 1533 fc->ongoeui.lo = ntohl(rfp->mode.rresq.data); 1534 if (fc->ongoeui.hi == 0 && fc->ongoeui.lo == 0) { 1535 if (firewire_debug) 1536 printf("node%d: eui64 is zero.\n", 1537 fc->ongonode); 1538 goto nextnode; 1539 } 1540 fc->ongoaddr = CSRROMOFF; 1541 } 1542 }else{ 1543 if (fc->ongoaddr == CSRROMOFF && 1544 fc->ongodev->csrrom[0] == ntohl(rfp->mode.rresq.data)) { 1545 fc->ongodev->status = FWDEVATTACHED; 1546 goto nextnode; 1547 } 1548 fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4] = ntohl(rfp->mode.rresq.data); 1549 if(fc->ongoaddr > fc->ongodev->rommax){ 1550 fc->ongodev->rommax = fc->ongoaddr; 1551 } 1552 csrd = SLIST_FIRST(&fc->ongocsr); 1553 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1554 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1555 offset = CSRROMOFF; 1556 }else{ 1557 chdr = (struct csrhdr *)&fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]; 1558 offset = csrd->off; 1559 } 1560 if(fc->ongoaddr > (CSRROMOFF + 0x14) && fc->ongoaddr != offset){ 1561 csrreg = (struct csrreg *)&fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4]; 1562 if( csrreg->key == 0x81 || csrreg->key == 0xd1){ 1563 csrd = SLIST_FIRST(&fc->csrfree); 1564 if(csrd == NULL){ 1565 goto nextnode; 1566 }else{ 1567 csrd->ongoaddr = fc->ongoaddr; 1568 fc->ongoaddr += csrreg->val * 4; 1569 csrd->off = fc->ongoaddr; 1570 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1571 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1572 goto nextaddr; 1573 } 1574 } 1575 } 1576 fc->ongoaddr += 4; 1577 if(((fc->ongoaddr - offset)/4 > chdr->crc_len) && 1578 (fc->ongodev->rommax < 0x414)){ 1579 if(fc->ongodev->rommax <= 0x414){ 1580 csrd = SLIST_FIRST(&fc->csrfree); 1581 if(csrd == NULL) goto nextnode; 1582 csrd->off = fc->ongoaddr; 1583 csrd->ongoaddr = fc->ongoaddr; 1584 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1585 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1586 } 1587 goto nextaddr; 1588 } 1589 1590 while(((fc->ongoaddr - offset)/4 > chdr->crc_len)){ 1591 if(csrd == NULL){ 1592 goto nextnode; 1593 }; 1594 fc->ongoaddr = csrd->ongoaddr + 4; 1595 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1596 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1597 csrd = SLIST_FIRST(&fc->ongocsr); 1598 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1599 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1600 offset = CSRROMOFF; 1601 }else{ 1602 chdr = (struct csrhdr *)&(fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]); 1603 offset = csrd->off; 1604 } 1605 } 1606 if((fc->ongoaddr - CSRROMOFF) > CSRROMSIZE){ 1607 goto nextnode; 1608 } 1609 } 1610nextaddr: 1611 fw_xfer_free( xfer); 1612 fw_bus_explore(fc); 1613 return; 1614errnode: 1615 fc->retry_count++; 1616 if (fc->ongodev != NULL) { 1617 fc->ongodev->status = FWDEVINVAL; 1618 /* Invalidate ROM */ 1619 fc->ongodev->csrrom[0] = 0; 1620 } 1621nextnode: 1622 fw_xfer_free( xfer); 1623 fc->ongonode++; 1624/* housekeeping work space */ 1625 fc->ongoaddr = CSRROMOFF; 1626 fc->ongodev = NULL; 1627 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1628 while((csrd = SLIST_FIRST(&fc->ongocsr)) != NULL){ 1629 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1630 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1631 } 1632 fw_bus_explore(fc); 1633 return; 1634} 1635 1636/* 1637 * To attach sub-devices layer onto IEEE1394 bus. 1638 */ 1639static void 1640fw_attach_dev(struct firewire_comm *fc) 1641{ 1642 struct fw_device *fwdev, *next; 1643 int i, err; 1644 device_t *devlistp; 1645 int devcnt; 1646 struct firewire_dev_comm *fdc; 1647 1648 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1649 next = STAILQ_NEXT(fwdev, link); 1650 if (fwdev->status == FWDEVINIT) { 1651 fwdev->status = FWDEVATTACHED; 1652 } else if (fwdev->status == FWDEVINVAL) { 1653 fwdev->rcnt ++; 1654 if (fwdev->rcnt > hold_count) { 1655 /* 1656 * Remove devices which have not been seen 1657 * for a while. 1658 */ 1659 STAILQ_REMOVE(&fc->devices, fwdev, fw_device, 1660 link); 1661 free(fwdev, M_FW); 1662 } 1663 } 1664 } 1665 1666 err = device_get_children(fc->bdev, &devlistp, &devcnt); 1667 if( err != 0 ) 1668 return; 1669 for( i = 0 ; i < devcnt ; i++){ 1670 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 1671 fdc = device_get_softc(devlistp[i]); 1672 if (fdc->post_explore != NULL) 1673 fdc->post_explore(fdc); 1674 } 1675 } 1676 free(devlistp, M_TEMP); 1677 1678 return; 1679} 1680 1681/* 1682 * To allocate unique transaction label. 1683 */ 1684static int 1685fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer) 1686{ 1687 u_int i; 1688 struct tlabel *tl, *tmptl; 1689 int s; 1690 static uint32_t label = 0; 1691 1692 s = splfw(); 1693 for( i = 0 ; i < 0x40 ; i ++){ 1694 label = (label + 1) & 0x3f; 1695 for(tmptl = STAILQ_FIRST(&fc->tlabels[label]); 1696 tmptl != NULL; tmptl = STAILQ_NEXT(tmptl, link)){ 1697 if (tmptl->xfer->send.hdr.mode.hdr.dst == 1698 xfer->send.hdr.mode.hdr.dst) 1699 break; 1700 } 1701 if(tmptl == NULL) { 1702 tl = malloc(sizeof(struct tlabel),M_FW,M_NOWAIT); 1703 if (tl == NULL) { 1704 splx(s); 1705 return (-1); 1706 } 1707 tl->xfer = xfer; 1708 STAILQ_INSERT_TAIL(&fc->tlabels[label], tl, link); 1709 splx(s); 1710 if (firewire_debug > 1) 1711 printf("fw_get_tlabel: dst=%d tl=%d\n", 1712 xfer->send.hdr.mode.hdr.dst, label); 1713 return(label); 1714 } 1715 } 1716 splx(s); 1717 1718 if (firewire_debug > 1) 1719 printf("fw_get_tlabel: no free tlabel\n"); 1720 return(-1); 1721} 1722 1723static void 1724fw_rcv_copy(struct fw_rcv_buf *rb) 1725{ 1726 struct fw_pkt *pkt; 1727 u_char *p; 1728 struct tcode_info *tinfo; 1729 u_int res, i, len, plen; 1730 1731 rb->xfer->recv.spd -= rb->spd; 1732 1733 pkt = (struct fw_pkt *)rb->vec->iov_base; 1734 tinfo = &rb->fc->tcode[pkt->mode.hdr.tcode]; 1735 1736 /* Copy header */ 1737 p = (u_char *)&rb->xfer->recv.hdr; 1738 bcopy(rb->vec->iov_base, p, tinfo->hdr_len); 1739 rb->vec->iov_base = (u_char *)rb->vec->iov_base + tinfo->hdr_len; 1740 rb->vec->iov_len -= tinfo->hdr_len; 1741 1742 /* Copy payload */ 1743 p = (u_char *)rb->xfer->recv.payload; 1744 res = rb->xfer->recv.pay_len; 1745 1746 /* special handling for RRESQ */ 1747 if (pkt->mode.hdr.tcode == FWTCODE_RRESQ && 1748 p != NULL && res >= sizeof(uint32_t)) { 1749 *(uint32_t *)p = pkt->mode.rresq.data; 1750 rb->xfer->recv.pay_len = sizeof(uint32_t); 1751 return; 1752 } 1753 1754 if ((tinfo->flag & FWTI_BLOCK_ASY) == 0) 1755 return; 1756 1757 plen = pkt->mode.rresb.len; 1758 1759 for (i = 0; i < rb->nvec; i++, rb->vec++) { 1760 len = MIN(rb->vec->iov_len, plen); 1761 if (res < len) { 1762 printf("rcv buffer(%d) is %d bytes short.\n", 1763 rb->xfer->recv.pay_len, len - res); 1764 len = res; 1765 } 1766 bcopy(rb->vec->iov_base, p, len); 1767 p += len; 1768 res -= len; 1769 plen -= len; 1770 if (res == 0 || plen == 0) 1771 break; 1772 } 1773 rb->xfer->recv.pay_len -= res; 1774 1775} 1776 1777/* 1778 * Generic packet receiving process. 1779 */ 1780void 1781fw_rcv(struct fw_rcv_buf *rb) 1782{ 1783 struct fw_pkt *fp, *resfp; 1784 struct fw_bind *bind; 1785 int tcode, s; 1786 int i, len, oldstate; 1787#if 0 1788 { 1789 uint32_t *qld; 1790 int i; 1791 qld = (uint32_t *)buf; 1792 printf("spd %d len:%d\n", spd, len); 1793 for( i = 0 ; i <= len && i < 32; i+= 4){ 1794 printf("0x%08x ", ntohl(qld[i/4])); 1795 if((i % 16) == 15) printf("\n"); 1796 } 1797 if((i % 16) != 15) printf("\n"); 1798 } 1799#endif 1800 fp = (struct fw_pkt *)rb->vec[0].iov_base; 1801 tcode = fp->mode.common.tcode; 1802 switch (tcode) { 1803 case FWTCODE_WRES: 1804 case FWTCODE_RRESQ: 1805 case FWTCODE_RRESB: 1806 case FWTCODE_LRES: 1807 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1808 fp->mode.hdr.tlrt >> 2); 1809 if(rb->xfer == NULL) { 1810 printf("fw_rcv: unknown response " 1811 "%s(%x) src=0x%x tl=0x%x rt=%d data=0x%x\n", 1812 tcode_str[tcode], tcode, 1813 fp->mode.hdr.src, 1814 fp->mode.hdr.tlrt >> 2, 1815 fp->mode.hdr.tlrt & 3, 1816 fp->mode.rresq.data); 1817#if 1 1818 printf("try ad-hoc work around!!\n"); 1819 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1820 (fp->mode.hdr.tlrt >> 2)^3); 1821 if (rb->xfer == NULL) { 1822 printf("no use...\n"); 1823 goto err; 1824 } 1825#else 1826 goto err; 1827#endif 1828 } 1829 fw_rcv_copy(rb); 1830 if (rb->xfer->recv.hdr.mode.wres.rtcode != RESP_CMP) 1831 rb->xfer->resp = EIO; 1832 else 1833 rb->xfer->resp = 0; 1834 /* make sure the packet is drained in AT queue */ 1835 oldstate = rb->xfer->state; 1836 rb->xfer->state = FWXF_RCVD; 1837 switch (oldstate) { 1838 case FWXF_SENT: 1839 fw_xfer_done(rb->xfer); 1840 break; 1841 case FWXF_START: 1842#if 0 1843 if (firewire_debug) 1844 printf("not sent yet tl=%x\n", rb->xfer->tl); 1845#endif 1846 break; 1847 default: 1848 printf("unexpected state %d\n", rb->xfer->state); 1849 } 1850 return; 1851 case FWTCODE_WREQQ: 1852 case FWTCODE_WREQB: 1853 case FWTCODE_RREQQ: 1854 case FWTCODE_RREQB: 1855 case FWTCODE_LREQ: 1856 bind = fw_bindlookup(rb->fc, fp->mode.rreqq.dest_hi, 1857 fp->mode.rreqq.dest_lo); 1858 if(bind == NULL){ 1859 printf("Unknown service addr 0x%04x:0x%08x %s(%x)" 1860#if defined(__DragonFly__) || __FreeBSD_version < 500000 1861 " src=0x%x data=%lx\n", 1862#else 1863 " src=0x%x data=%x\n", 1864#endif 1865 fp->mode.wreqq.dest_hi, fp->mode.wreqq.dest_lo, 1866 tcode_str[tcode], tcode, 1867 fp->mode.hdr.src, ntohl(fp->mode.wreqq.data)); 1868 if (rb->fc->status == FWBUSRESET) { 1869 printf("fw_rcv: cannot respond(bus reset)!\n"); 1870 goto err; 1871 } 1872 rb->xfer = fw_xfer_alloc(M_FWXFER); 1873 if(rb->xfer == NULL){ 1874 return; 1875 } 1876 rb->xfer->send.spd = rb->spd; 1877 rb->xfer->send.pay_len = 0; 1878 resfp = &rb->xfer->send.hdr; 1879 switch (tcode) { 1880 case FWTCODE_WREQQ: 1881 case FWTCODE_WREQB: 1882 resfp->mode.hdr.tcode = FWTCODE_WRES; 1883 break; 1884 case FWTCODE_RREQQ: 1885 resfp->mode.hdr.tcode = FWTCODE_RRESQ; 1886 break; 1887 case FWTCODE_RREQB: 1888 resfp->mode.hdr.tcode = FWTCODE_RRESB; 1889 break; 1890 case FWTCODE_LREQ: 1891 resfp->mode.hdr.tcode = FWTCODE_LRES; 1892 break; 1893 } 1894 resfp->mode.hdr.dst = fp->mode.hdr.src; 1895 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt; 1896 resfp->mode.hdr.pri = fp->mode.hdr.pri; 1897 resfp->mode.rresb.rtcode = RESP_ADDRESS_ERROR; 1898 resfp->mode.rresb.extcode = 0; 1899 resfp->mode.rresb.len = 0; 1900/* 1901 rb->xfer->act.hand = fw_asy_callback; 1902*/ 1903 rb->xfer->act.hand = fw_xfer_free; 1904 if(fw_asyreq(rb->fc, -1, rb->xfer)){ 1905 fw_xfer_free(rb->xfer); 1906 return; 1907 } 1908 goto err; 1909 } 1910 len = 0; 1911 for (i = 0; i < rb->nvec; i ++) 1912 len += rb->vec[i].iov_len; 1913 switch(bind->act_type){ 1914 case FWACT_XFER: 1915 /* splfw()?? */ 1916 rb->xfer = STAILQ_FIRST(&bind->xferlist); 1917 if (rb->xfer == NULL) { 1918 printf("Discard a packet for this bind.\n"); 1919 goto err; 1920 } 1921 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 1922 fw_rcv_copy(rb); 1923 rb->xfer->act.hand(rb->xfer); 1924 return; 1925 break; 1926 case FWACT_CH: 1927 if(rb->fc->ir[bind->sub]->queued >= 1928 rb->fc->ir[bind->sub]->maxq){ 1929 device_printf(rb->fc->bdev, 1930 "Discard a packet %x %d\n", 1931 bind->sub, 1932 rb->fc->ir[bind->sub]->queued); 1933 goto err; 1934 } 1935 rb->xfer = STAILQ_FIRST(&bind->xferlist); 1936 if (rb->xfer == NULL) { 1937 printf("Discard packet for this bind\n"); 1938 goto err; 1939 } 1940 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 1941 fw_rcv_copy(rb); 1942 s = splfw(); 1943 rb->fc->ir[bind->sub]->queued++; 1944 STAILQ_INSERT_TAIL(&rb->fc->ir[bind->sub]->q, 1945 rb->xfer, link); 1946 splx(s); 1947 1948 wakeup((caddr_t)rb->fc->ir[bind->sub]); 1949 1950 return; 1951 break; 1952 default: 1953 goto err; 1954 break; 1955 } 1956 break; 1957#if 0 /* shouldn't happen ?? or for GASP */ 1958 case FWTCODE_STREAM: 1959 { 1960 struct fw_xferq *xferq; 1961 1962 xferq = rb->fc->ir[sub]; 1963#if 0 1964 printf("stream rcv dma %d len %d off %d spd %d\n", 1965 sub, len, off, spd); 1966#endif 1967 if(xferq->queued >= xferq->maxq) { 1968 printf("receive queue is full\n"); 1969 goto err; 1970 } 1971 /* XXX get xfer from xfer queue, we don't need copy for 1972 per packet mode */ 1973 rb->xfer = fw_xfer_alloc_buf(M_FWXFER, 0, /* XXX */ 1974 vec[0].iov_len); 1975 if (rb->xfer == NULL) goto err; 1976 fw_rcv_copy(rb) 1977 s = splfw(); 1978 xferq->queued++; 1979 STAILQ_INSERT_TAIL(&xferq->q, rb->xfer, link); 1980 splx(s); 1981 sc = device_get_softc(rb->fc->bdev); 1982#if defined(__DragonFly__) || __FreeBSD_version < 500000 1983 if (&xferq->rsel.si_pid != 0) 1984#else 1985 if (SEL_WAITING(&xferq->rsel)) 1986#endif 1987 selwakeuppri(&xferq->rsel, FWPRI); 1988 if (xferq->flag & FWXFERQ_WAKEUP) { 1989 xferq->flag &= ~FWXFERQ_WAKEUP; 1990 wakeup((caddr_t)xferq); 1991 } 1992 if (xferq->flag & FWXFERQ_HANDLER) { 1993 xferq->hand(xferq); 1994 } 1995 return; 1996 break; 1997 } 1998#endif 1999 default: 2000 printf("fw_rcv: unknow tcode %d\n", tcode); 2001 break; 2002 } 2003err: 2004 return; 2005} 2006 2007/* 2008 * Post process for Bus Manager election process. 2009 */ 2010static void 2011fw_try_bmr_callback(struct fw_xfer *xfer) 2012{ 2013 struct firewire_comm *fc; 2014 int bmr; 2015 2016 if (xfer == NULL) 2017 return; 2018 fc = xfer->fc; 2019 if (xfer->resp != 0) 2020 goto error; 2021 if (xfer->recv.payload == NULL) 2022 goto error; 2023 if (xfer->recv.hdr.mode.lres.rtcode != FWRCODE_COMPLETE) 2024 goto error; 2025 2026 bmr = ntohl(xfer->recv.payload[0]); 2027 if (bmr == 0x3f) 2028 bmr = fc->nodeid; 2029 2030 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f); 2031 fw_xfer_free_buf(xfer); 2032 fw_bmr(fc); 2033 return; 2034 2035error: 2036 device_printf(fc->bdev, "bus manager election failed\n"); 2037 fw_xfer_free_buf(xfer); 2038} 2039 2040 2041/* 2042 * To candidate Bus Manager election process. 2043 */ 2044static void 2045fw_try_bmr(void *arg) 2046{ 2047 struct fw_xfer *xfer; 2048 struct firewire_comm *fc = (struct firewire_comm *)arg; 2049 struct fw_pkt *fp; 2050 int err = 0; 2051 2052 xfer = fw_xfer_alloc_buf(M_FWXFER, 8, 4); 2053 if(xfer == NULL){ 2054 return; 2055 } 2056 xfer->send.spd = 0; 2057 fc->status = FWBUSMGRELECT; 2058 2059 fp = &xfer->send.hdr; 2060 fp->mode.lreq.dest_hi = 0xffff; 2061 fp->mode.lreq.tlrt = 0; 2062 fp->mode.lreq.tcode = FWTCODE_LREQ; 2063 fp->mode.lreq.pri = 0; 2064 fp->mode.lreq.src = 0; 2065 fp->mode.lreq.len = 8; 2066 fp->mode.lreq.extcode = EXTCODE_CMP_SWAP; 2067 fp->mode.lreq.dst = FWLOCALBUS | fc->irm; 2068 fp->mode.lreq.dest_lo = 0xf0000000 | BUS_MGR_ID; 2069 xfer->send.payload[0] = htonl(0x3f); 2070 xfer->send.payload[1] = htonl(fc->nodeid); 2071 xfer->act.hand = fw_try_bmr_callback; 2072 2073 err = fw_asyreq(fc, -1, xfer); 2074 if(err){ 2075 fw_xfer_free_buf(xfer); 2076 return; 2077 } 2078 return; 2079} 2080 2081#ifdef FW_VMACCESS 2082/* 2083 * Software implementation for physical memory block access. 2084 * XXX:Too slow, usef for debug purpose only. 2085 */ 2086static void 2087fw_vmaccess(struct fw_xfer *xfer){ 2088 struct fw_pkt *rfp, *sfp = NULL; 2089 uint32_t *ld = (uint32_t *)xfer->recv.buf; 2090 2091 printf("vmaccess spd:%2x len:%03x data:%08x %08x %08x %08x\n", 2092 xfer->spd, xfer->recv.len, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 2093 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 2094 if(xfer->resp != 0){ 2095 fw_xfer_free( xfer); 2096 return; 2097 } 2098 if(xfer->recv.buf == NULL){ 2099 fw_xfer_free( xfer); 2100 return; 2101 } 2102 rfp = (struct fw_pkt *)xfer->recv.buf; 2103 switch(rfp->mode.hdr.tcode){ 2104 /* XXX need fix for 64bit arch */ 2105 case FWTCODE_WREQB: 2106 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2107 xfer->send.len = 12; 2108 sfp = (struct fw_pkt *)xfer->send.buf; 2109 bcopy(rfp->mode.wreqb.payload, 2110 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len)); 2111 sfp->mode.wres.tcode = FWTCODE_WRES; 2112 sfp->mode.wres.rtcode = 0; 2113 break; 2114 case FWTCODE_WREQQ: 2115 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2116 xfer->send.len = 12; 2117 sfp->mode.wres.tcode = FWTCODE_WRES; 2118 *((uint32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data; 2119 sfp->mode.wres.rtcode = 0; 2120 break; 2121 case FWTCODE_RREQB: 2122 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_FW, M_NOWAIT); 2123 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len); 2124 sfp = (struct fw_pkt *)xfer->send.buf; 2125 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo), 2126 sfp->mode.rresb.payload, (uint16_t)ntohs(rfp->mode.rreqb.len)); 2127 sfp->mode.rresb.tcode = FWTCODE_RRESB; 2128 sfp->mode.rresb.len = rfp->mode.rreqb.len; 2129 sfp->mode.rresb.rtcode = 0; 2130 sfp->mode.rresb.extcode = 0; 2131 break; 2132 case FWTCODE_RREQQ: 2133 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 2134 xfer->send.len = 16; 2135 sfp = (struct fw_pkt *)xfer->send.buf; 2136 sfp->mode.rresq.data = *(uint32_t *)(ntohl(rfp->mode.rreqq.dest_lo)); 2137 sfp->mode.wres.tcode = FWTCODE_RRESQ; 2138 sfp->mode.rresb.rtcode = 0; 2139 break; 2140 default: 2141 fw_xfer_free( xfer); 2142 return; 2143 } 2144 sfp->mode.hdr.dst = rfp->mode.hdr.src; 2145 xfer->dst = ntohs(rfp->mode.hdr.src); 2146 xfer->act.hand = fw_xfer_free; 2147 2148 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt; 2149 sfp->mode.hdr.pri = 0; 2150 2151 fw_asyreq(xfer->fc, -1, xfer); 2152/**/ 2153 return; 2154} 2155#endif 2156 2157/* 2158 * CRC16 check-sum for IEEE1394 register blocks. 2159 */ 2160uint16_t 2161fw_crc16(uint32_t *ptr, uint32_t len){ 2162 uint32_t i, sum, crc = 0; 2163 int shift; 2164 len = (len + 3) & ~3; 2165 for(i = 0 ; i < len ; i+= 4){ 2166 for( shift = 28 ; shift >= 0 ; shift -= 4){ 2167 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf; 2168 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum; 2169 } 2170 crc &= 0xffff; 2171 } 2172 return((uint16_t) crc); 2173} 2174 2175static int 2176fw_bmr(struct firewire_comm *fc) 2177{ 2178 struct fw_device fwdev; 2179 union fw_self_id *self_id; 2180 int cmstr; 2181 uint32_t quad; 2182 2183 /* Check to see if the current root node is cycle master capable */ 2184 self_id = fw_find_self_id(fc, fc->max_node); 2185 if (fc->max_node > 0) { 2186 /* XXX check cmc bit of businfo block rather than contender */ 2187 if (self_id->p0.link_active && self_id->p0.contender) 2188 cmstr = fc->max_node; 2189 else { 2190 device_printf(fc->bdev, 2191 "root node is not cycle master capable\n"); 2192 /* XXX shall we be the cycle master? */ 2193 cmstr = fc->nodeid; 2194 /* XXX need bus reset */ 2195 } 2196 } else 2197 cmstr = -1; 2198 2199 device_printf(fc->bdev, "bus manager %d ", CSRARC(fc, BUS_MGR_ID)); 2200 if(CSRARC(fc, BUS_MGR_ID) != fc->nodeid) { 2201 /* We are not the bus manager */ 2202 printf("\n"); 2203 return(0); 2204 } 2205 printf("(me)\n"); 2206 2207 /* Optimize gapcount */ 2208 if(fc->max_hop <= MAX_GAPHOP ) 2209 fw_phy_config(fc, cmstr, gap_cnt[fc->max_hop]); 2210 /* If we are the cycle master, nothing to do */ 2211 if (cmstr == fc->nodeid || cmstr == -1) 2212 return 0; 2213 /* Bus probe has not finished, make dummy fwdev for cmstr */ 2214 bzero(&fwdev, sizeof(fwdev)); 2215 fwdev.fc = fc; 2216 fwdev.dst = cmstr; 2217 fwdev.speed = 0; 2218 fwdev.maxrec = 8; /* 512 */ 2219 fwdev.status = FWDEVINIT; 2220 /* Set cmstr bit on the cycle master */ 2221 quad = htonl(1 << 8); 2222 fwmem_write_quad(&fwdev, NULL, 0/*spd*/, 2223 0xffff, 0xf0000000 | STATE_SET, &quad, fw_asy_callback_free); 2224 2225 return 0; 2226} 2227 2228static int 2229fw_modevent(module_t mode, int type, void *data) 2230{ 2231 int err = 0; 2232#if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2233 static eventhandler_tag fwdev_ehtag = NULL; 2234#endif 2235 2236 switch (type) { 2237 case MOD_LOAD: 2238#if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2239 fwdev_ehtag = EVENTHANDLER_REGISTER(dev_clone, 2240 fwdev_clone, 0, 1000); 2241#endif 2242 break; 2243 case MOD_UNLOAD: 2244#if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2245 if (fwdev_ehtag != NULL) 2246 EVENTHANDLER_DEREGISTER(dev_clone, fwdev_ehtag); 2247#endif 2248 break; 2249 case MOD_SHUTDOWN: 2250 break; 2251 default: 2252 return (EOPNOTSUPP); 2253 } 2254 return (err); 2255} 2256 2257 2258#ifdef __DragonFly__ 2259DECLARE_DUMMY_MODULE(firewire); 2260#endif 2261DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,fw_modevent,0); 2262MODULE_VERSION(firewire, 1); 2263