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 * $FreeBSD$ 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 69 struct 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 76 int firewire_debug=0, try_bmr=1, hold_count=3; 77 SYSCTL_INT(_debug, OID_AUTO, firewire_debug, CTLFLAG_RW, &firewire_debug, 0, 78 "FireWire driver debug flag"); 79 SYSCTL_NODE(_hw, OID_AUTO, firewire, CTLFLAG_RD, 0, "FireWire Subsystem"); 80 SYSCTL_INT(_hw_firewire, OID_AUTO, try_bmr, CTLFLAG_RW, &try_bmr, 0, 81 "Try to be a bus manager"); 82 SYSCTL_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 85 MALLOC_DEFINE(M_FW, "firewire", "FireWire"); 86 MALLOC_DEFINE(M_FWXFER, "fw_xfer", "XFER/FireWire"); 87 88 #define FW_MAXASYRTY 4 89 90 devclass_t firewire_devclass; 91 92 static void firewire_identify (driver_t *, device_t); 93 static int firewire_probe (device_t); 94 static int firewire_attach (device_t); 95 static int firewire_detach (device_t); 96 static int firewire_resume (device_t); 97 #if 0 98 static int firewire_shutdown (device_t); 99 #endif 100 static device_t firewire_add_child (device_t, int, const char *, int); 101 static void fw_try_bmr (void *); 102 static void fw_try_bmr_callback (struct fw_xfer *); 103 static void fw_asystart (struct fw_xfer *); 104 static int fw_get_tlabel (struct firewire_comm *, struct fw_xfer *); 105 static void fw_bus_probe (struct firewire_comm *); 106 static void fw_bus_explore (struct firewire_comm *); 107 static void fw_bus_explore_callback (struct fw_xfer *); 108 static void fw_attach_dev (struct firewire_comm *); 109 #ifdef FW_VMACCESS 110 static void fw_vmaccess (struct fw_xfer *); 111 #endif 112 struct fw_xfer *asyreqq (struct firewire_comm *, uint8_t, uint8_t, uint8_t, 113 uint32_t, uint32_t, void (*)(struct fw_xfer *)); 114 static int fw_bmr (struct firewire_comm *); 115 116 static 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 }; 132 char *linkspeed[] = { 133 "S100", "S200", "S400", "S800", 134 "S1600", "S3200", "undef", "undef" 135 }; 136 137 static 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 15 146 u_int gap_cnt[] = { 5, 5, 7, 8, 10, 13, 16, 18, 147 21, 24, 26, 29, 32, 35, 37, 40}; 148 149 static driver_t firewire_driver = { 150 "firewire", 151 firewire_methods, 152 sizeof(struct firewire_softc), 153 }; 154 155 /* 156 * Lookup fwdev by node id. 157 */ 158 struct fw_device * 159 fw_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 */ 176 struct fw_device * 177 fw_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 */ 196 int 197 fw_asyreq(struct firewire_comm *fc, int sub, struct fw_xfer *xfer) 198 { 199 int err = 0; 200 struct fw_xferq *xferq; 201 int tl = -1, len; 202 struct fw_pkt *fp; 203 int tcode; 204 struct tcode_info *info; 205 206 if(xfer == NULL) return EINVAL; 207 if(xfer->hand == NULL){ 208 printf("hand == NULL\n"); 209 return EINVAL; 210 } 211 fp = &xfer->send.hdr; 212 213 tcode = fp->mode.common.tcode & 0xf; 214 info = &fc->tcode[tcode]; 215 if (info->flag == 0) { 216 printf("invalid tcode=%x\n", tcode); 217 return EINVAL; 218 } 219 if (info->flag & FWTI_REQ) 220 xferq = fc->atq; 221 else 222 xferq = fc->ats; 223 len = info->hdr_len; 224 if (xfer->send.pay_len > MAXREC(fc->maxrec)) { 225 printf("send.pay_len > maxrec\n"); 226 return EINVAL; 227 } 228 if (info->flag & FWTI_BLOCK_STR) 229 len = fp->mode.stream.len; 230 else if (info->flag & FWTI_BLOCK_ASY) 231 len = fp->mode.rresb.len; 232 else 233 len = 0; 234 if (len != xfer->send.pay_len){ 235 printf("len(%d) != send.pay_len(%d) %s(%x)\n", 236 len, xfer->send.pay_len, tcode_str[tcode], tcode); 237 return EINVAL; 238 } 239 240 if(xferq->start == NULL){ 241 printf("xferq->start == NULL\n"); 242 return EINVAL; 243 } 244 if(!(xferq->queued < xferq->maxq)){ 245 device_printf(fc->bdev, "Discard a packet (queued=%d)\n", 246 xferq->queued); 247 return EINVAL; 248 } 249 250 if (info->flag & FWTI_TLABEL) { 251 if ((tl = fw_get_tlabel(fc, xfer)) == -1) 252 return EAGAIN; 253 fp->mode.hdr.tlrt = tl << 2; 254 } 255 256 xfer->tl = tl; 257 xfer->resp = 0; 258 xfer->fc = fc; 259 xfer->q = xferq; 260 261 fw_asystart(xfer); 262 return err; 263 } 264 /* 265 * Wakeup blocked process. 266 */ 267 void 268 fw_asy_callback(struct fw_xfer *xfer){ 269 wakeup(xfer); 270 return; 271 } 272 273 /* 274 * Async. request with given xfer structure. 275 */ 276 static void 277 fw_asystart(struct fw_xfer *xfer) 278 { 279 struct firewire_comm *fc = xfer->fc; 280 int s; 281 #if 0 /* XXX allow bus explore packets only after bus rest */ 282 if (fc->status < FWBUSEXPLORE) { 283 xfer->resp = EAGAIN; 284 xfer->state = FWXF_BUSY; 285 if (xfer->hand != NULL) 286 xfer->hand(xfer); 287 return; 288 } 289 #endif 290 microtime(&xfer->tv); 291 s = splfw(); 292 xfer->state = FWXF_INQ; 293 STAILQ_INSERT_TAIL(&xfer->q->q, xfer, link); 294 xfer->q->queued ++; 295 splx(s); 296 /* XXX just queue for mbuf */ 297 if (xfer->mbuf == NULL) 298 xfer->q->start(fc); 299 return; 300 } 301 302 static void 303 firewire_identify(driver_t *driver, device_t parent) 304 { 305 BUS_ADD_CHILD(parent, 0, "firewire", -1); 306 } 307 308 static int 309 firewire_probe(device_t dev) 310 { 311 device_set_desc(dev, "IEEE1394(FireWire) bus"); 312 return (0); 313 } 314 315 static void 316 firewire_xfer_timeout(struct firewire_comm *fc) 317 { 318 struct fw_xfer *xfer; 319 struct timeval tv; 320 struct timeval split_timeout; 321 int i, s; 322 323 split_timeout.tv_sec = 0; 324 split_timeout.tv_usec = 200 * 1000; /* 200 msec */ 325 326 microtime(&tv); 327 timevalsub(&tv, &split_timeout); 328 329 s = splfw(); 330 for (i = 0; i < 0x40; i ++) { 331 while ((xfer = STAILQ_FIRST(&fc->tlabels[i])) != NULL) { 332 if (timevalcmp(&xfer->tv, &tv, >)) 333 /* the rests are newer than this */ 334 break; 335 if (xfer->state == FWXF_START) 336 /* not sent yet */ 337 break; 338 device_printf(fc->bdev, 339 "split transaction timeout dst=0x%x tl=0x%x state=%d\n", 340 xfer->send.hdr.mode.hdr.dst, i, xfer->state); 341 xfer->resp = ETIMEDOUT; 342 fw_xfer_done(xfer); 343 } 344 } 345 splx(s); 346 } 347 348 #define WATCHDOC_HZ 10 349 static void 350 firewire_watchdog(void *arg) 351 { 352 struct firewire_comm *fc; 353 static int watchdoc_clock = 0; 354 355 fc = (struct firewire_comm *)arg; 356 357 /* 358 * At boot stage, the device interrupt is disabled and 359 * We encounter a timeout easily. To avoid this, 360 * ignore clock interrupt for a while. 361 */ 362 if (watchdoc_clock > WATCHDOC_HZ * 15) { 363 firewire_xfer_timeout(fc); 364 fc->timeout(fc); 365 } else 366 watchdoc_clock ++; 367 368 callout_reset(&fc->timeout_callout, hz / WATCHDOC_HZ, 369 (void *)firewire_watchdog, (void *)fc); 370 } 371 372 /* 373 * The attach routine. 374 */ 375 static int 376 firewire_attach(device_t dev) 377 { 378 int unit; 379 struct firewire_softc *sc = device_get_softc(dev); 380 device_t pa = device_get_parent(dev); 381 struct firewire_comm *fc; 382 383 fc = (struct firewire_comm *)device_get_softc(pa); 384 sc->fc = fc; 385 fc->status = FWBUSNOTREADY; 386 387 unit = device_get_unit(dev); 388 if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA; 389 390 fwdev_makedev(sc); 391 392 CALLOUT_INIT(&sc->fc->timeout_callout); 393 CALLOUT_INIT(&sc->fc->bmr_callout); 394 CALLOUT_INIT(&sc->fc->busprobe_callout); 395 396 callout_reset(&sc->fc->timeout_callout, hz, 397 (void *)firewire_watchdog, (void *)sc->fc); 398 399 /* Locate our children */ 400 bus_generic_probe(dev); 401 402 /* launch attachement of the added children */ 403 bus_generic_attach(dev); 404 405 /* bus_reset */ 406 fw_busreset(fc, FWBUSNOTREADY); 407 fc->ibr(fc); 408 409 return 0; 410 } 411 412 /* 413 * Attach it as child. 414 */ 415 static device_t 416 firewire_add_child(device_t dev, int order, const char *name, int unit) 417 { 418 device_t child; 419 struct firewire_softc *sc; 420 421 sc = (struct firewire_softc *)device_get_softc(dev); 422 child = device_add_child(dev, name, unit); 423 if (child) { 424 device_set_ivars(child, sc->fc); 425 device_probe_and_attach(child); 426 } 427 428 return child; 429 } 430 431 static int 432 firewire_resume(device_t dev) 433 { 434 struct firewire_softc *sc; 435 436 sc = (struct firewire_softc *)device_get_softc(dev); 437 sc->fc->status = FWBUSNOTREADY; 438 439 bus_generic_resume(dev); 440 441 return(0); 442 } 443 444 /* 445 * Dettach it. 446 */ 447 static int 448 firewire_detach(device_t dev) 449 { 450 struct firewire_softc *sc; 451 struct csrdir *csrd, *next; 452 struct fw_device *fwdev, *fwdev_next; 453 int err; 454 455 sc = (struct firewire_softc *)device_get_softc(dev); 456 if ((err = fwdev_destroydev(sc)) != 0) 457 return err; 458 459 if ((err = bus_generic_detach(dev)) != 0) 460 return err; 461 462 callout_stop(&sc->fc->timeout_callout); 463 callout_stop(&sc->fc->bmr_callout); 464 callout_stop(&sc->fc->busprobe_callout); 465 466 /* XXX xfree_free and untimeout on all xfers */ 467 for (fwdev = STAILQ_FIRST(&sc->fc->devices); fwdev != NULL; 468 fwdev = fwdev_next) { 469 fwdev_next = STAILQ_NEXT(fwdev, link); 470 free(fwdev, M_FW); 471 } 472 for (csrd = SLIST_FIRST(&sc->fc->csrfree); csrd != NULL; csrd = next) { 473 next = SLIST_NEXT(csrd, link); 474 free(csrd, M_FW); 475 } 476 free(sc->fc->topology_map, M_FW); 477 free(sc->fc->speed_map, M_FW); 478 free(sc->fc->crom_src_buf, M_FW); 479 return(0); 480 } 481 #if 0 482 static int 483 firewire_shutdown( device_t dev ) 484 { 485 return 0; 486 } 487 #endif 488 489 490 static void 491 fw_xferq_drain(struct fw_xferq *xferq) 492 { 493 struct fw_xfer *xfer; 494 495 while ((xfer = STAILQ_FIRST(&xferq->q)) != NULL) { 496 STAILQ_REMOVE_HEAD(&xferq->q, link); 497 xferq->queued --; 498 xfer->resp = EAGAIN; 499 xfer->state = FWXF_SENTERR; 500 fw_xfer_done(xfer); 501 } 502 } 503 504 void 505 fw_drain_txq(struct firewire_comm *fc) 506 { 507 int i; 508 509 fw_xferq_drain(fc->atq); 510 fw_xferq_drain(fc->ats); 511 for(i = 0; i < fc->nisodma; i++) 512 fw_xferq_drain(fc->it[i]); 513 } 514 515 static void 516 fw_reset_csr(struct firewire_comm *fc) 517 { 518 int i; 519 520 CSRARC(fc, STATE_CLEAR) 521 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 522 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 523 CSRARC(fc, NODE_IDS) = 0x3f; 524 525 CSRARC(fc, TOPO_MAP + 8) = 0; 526 fc->irm = -1; 527 528 fc->max_node = -1; 529 530 for(i = 2; i < 0x100/4 - 2 ; i++){ 531 CSRARC(fc, SPED_MAP + i * 4) = 0; 532 } 533 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 534 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 535 CSRARC(fc, RESET_START) = 0; 536 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0; 537 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19; 538 CSRARC(fc, CYCLE_TIME) = 0x0; 539 CSRARC(fc, BUS_TIME) = 0x0; 540 CSRARC(fc, BUS_MGR_ID) = 0x3f; 541 CSRARC(fc, BANDWIDTH_AV) = 4915; 542 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff; 543 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff; 544 CSRARC(fc, IP_CHANNELS) = (1 << 31); 545 546 CSRARC(fc, CONF_ROM) = 0x04 << 24; 547 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */ 548 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 | 549 1 << 28 | 0xff << 16 | 0x09 << 8; 550 CSRARC(fc, CONF_ROM + 0xc) = 0; 551 552 /* DV depend CSRs see blue book */ 553 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON; 554 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON; 555 556 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 ); 557 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 558 } 559 560 static void 561 fw_init_crom(struct firewire_comm *fc) 562 { 563 struct crom_src *src; 564 565 fc->crom_src_buf = (struct crom_src_buf *) 566 malloc(sizeof(struct crom_src_buf), M_FW, M_WAITOK | M_ZERO); 567 if (fc->crom_src_buf == NULL) 568 return; 569 570 src = &fc->crom_src_buf->src; 571 bzero(src, sizeof(struct crom_src)); 572 573 /* BUS info sample */ 574 src->hdr.info_len = 4; 575 576 src->businfo.bus_name = CSR_BUS_NAME_IEEE1394; 577 578 src->businfo.irmc = 1; 579 src->businfo.cmc = 1; 580 src->businfo.isc = 1; 581 src->businfo.bmc = 1; 582 src->businfo.pmc = 0; 583 src->businfo.cyc_clk_acc = 100; 584 src->businfo.max_rec = fc->maxrec; 585 src->businfo.max_rom = MAXROM_4; 586 src->businfo.generation = 1; 587 src->businfo.link_spd = fc->speed; 588 589 src->businfo.eui64.hi = fc->eui.hi; 590 src->businfo.eui64.lo = fc->eui.lo; 591 592 STAILQ_INIT(&src->chunk_list); 593 594 fc->crom_src = src; 595 fc->crom_root = &fc->crom_src_buf->root; 596 } 597 598 static void 599 fw_reset_crom(struct firewire_comm *fc) 600 { 601 struct crom_src_buf *buf; 602 struct crom_src *src; 603 struct crom_chunk *root; 604 605 if (fc->crom_src_buf == NULL) 606 fw_init_crom(fc); 607 608 buf = fc->crom_src_buf; 609 src = fc->crom_src; 610 root = fc->crom_root; 611 612 STAILQ_INIT(&src->chunk_list); 613 614 bzero(root, sizeof(struct crom_chunk)); 615 crom_add_chunk(src, NULL, root, 0); 616 crom_add_entry(root, CSRKEY_NCAP, 0x0083c0); /* XXX */ 617 /* private company_id */ 618 crom_add_entry(root, CSRKEY_VENDOR, CSRVAL_VENDOR_PRIVATE); 619 #ifdef __DragonFly__ 620 crom_add_simple_text(src, root, &buf->vendor, "DragonFly Project"); 621 crom_add_entry(root, CSRKEY_HW, __DragonFly_cc_version); 622 #else 623 crom_add_simple_text(src, root, &buf->vendor, "FreeBSD Project"); 624 crom_add_entry(root, CSRKEY_HW, __FreeBSD_version); 625 #endif 626 crom_add_simple_text(src, root, &buf->hw, hostname); 627 } 628 629 /* 630 * Called after bus reset. 631 */ 632 void 633 fw_busreset(struct firewire_comm *fc, uint32_t new_status) 634 { 635 struct firewire_dev_comm *fdc; 636 struct crom_src *src; 637 device_t *devlistp; 638 void *newrom; 639 int i, devcnt; 640 641 switch(fc->status){ 642 case FWBUSMGRELECT: 643 callout_stop(&fc->bmr_callout); 644 break; 645 default: 646 break; 647 } 648 fc->status = new_status; 649 fw_reset_csr(fc); 650 fw_reset_crom(fc); 651 652 if (device_get_children(fc->bdev, &devlistp, &devcnt) == 0) { 653 for( i = 0 ; i < devcnt ; i++) 654 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 655 fdc = device_get_softc(devlistp[i]); 656 if (fdc->post_busreset != NULL) 657 fdc->post_busreset(fdc); 658 } 659 free(devlistp, M_TEMP); 660 } 661 662 newrom = malloc(CROMSIZE, M_FW, M_NOWAIT | M_ZERO); 663 src = &fc->crom_src_buf->src; 664 crom_load(src, (uint32_t *)newrom, CROMSIZE); 665 if (bcmp(newrom, fc->config_rom, CROMSIZE) != 0) { 666 /* bump generation and reload */ 667 src->businfo.generation ++; 668 /* generation must be between 0x2 and 0xF */ 669 if (src->businfo.generation < 2) 670 src->businfo.generation ++; 671 crom_load(src, (uint32_t *)newrom, CROMSIZE); 672 bcopy(newrom, (void *)fc->config_rom, CROMSIZE); 673 } 674 free(newrom, M_FW); 675 } 676 677 /* Call once after reboot */ 678 void fw_init(struct firewire_comm *fc) 679 { 680 int i; 681 struct csrdir *csrd; 682 #ifdef FW_VMACCESS 683 struct fw_xfer *xfer; 684 struct fw_bind *fwb; 685 #endif 686 687 fc->arq->queued = 0; 688 fc->ars->queued = 0; 689 fc->atq->queued = 0; 690 fc->ats->queued = 0; 691 692 fc->arq->buf = NULL; 693 fc->ars->buf = NULL; 694 fc->atq->buf = NULL; 695 fc->ats->buf = NULL; 696 697 fc->arq->flag = 0; 698 fc->ars->flag = 0; 699 fc->atq->flag = 0; 700 fc->ats->flag = 0; 701 702 STAILQ_INIT(&fc->atq->q); 703 STAILQ_INIT(&fc->ats->q); 704 705 for( i = 0 ; i < fc->nisodma ; i ++ ){ 706 fc->it[i]->queued = 0; 707 fc->ir[i]->queued = 0; 708 709 fc->it[i]->start = NULL; 710 fc->ir[i]->start = NULL; 711 712 fc->it[i]->buf = NULL; 713 fc->ir[i]->buf = NULL; 714 715 fc->it[i]->flag = FWXFERQ_STREAM; 716 fc->ir[i]->flag = FWXFERQ_STREAM; 717 718 STAILQ_INIT(&fc->it[i]->q); 719 STAILQ_INIT(&fc->ir[i]->q); 720 } 721 722 fc->arq->maxq = FWMAXQUEUE; 723 fc->ars->maxq = FWMAXQUEUE; 724 fc->atq->maxq = FWMAXQUEUE; 725 fc->ats->maxq = FWMAXQUEUE; 726 727 for( i = 0 ; i < fc->nisodma ; i++){ 728 fc->ir[i]->maxq = FWMAXQUEUE; 729 fc->it[i]->maxq = FWMAXQUEUE; 730 } 731 /* Initialize csr registers */ 732 fc->topology_map = (struct fw_topology_map *)malloc( 733 sizeof(struct fw_topology_map), 734 M_FW, M_NOWAIT | M_ZERO); 735 fc->speed_map = (struct fw_speed_map *)malloc( 736 sizeof(struct fw_speed_map), 737 M_FW, M_NOWAIT | M_ZERO); 738 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16; 739 CSRARC(fc, TOPO_MAP + 4) = 1; 740 CSRARC(fc, SPED_MAP) = 0x3f1 << 16; 741 CSRARC(fc, SPED_MAP + 4) = 1; 742 743 STAILQ_INIT(&fc->devices); 744 745 /* Initialize csr ROM work space */ 746 SLIST_INIT(&fc->ongocsr); 747 SLIST_INIT(&fc->csrfree); 748 for( i = 0 ; i < FWMAXCSRDIR ; i++){ 749 csrd = (struct csrdir *) malloc(sizeof(struct csrdir), M_FW,M_NOWAIT); 750 if(csrd == NULL) break; 751 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 752 } 753 754 /* Initialize Async handlers */ 755 STAILQ_INIT(&fc->binds); 756 for( i = 0 ; i < 0x40 ; i++){ 757 STAILQ_INIT(&fc->tlabels[i]); 758 } 759 760 /* DV depend CSRs see blue book */ 761 #if 0 762 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */ 763 CSRARC(fc, oPCR) = 0x8000007a; 764 for(i = 4 ; i < 0x7c/4 ; i+=4){ 765 CSRARC(fc, i + oPCR) = 0x8000007a; 766 } 767 768 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */ 769 CSRARC(fc, iPCR) = 0x803f0000; 770 for(i = 4 ; i < 0x7c/4 ; i+=4){ 771 CSRARC(fc, i + iPCR) = 0x0; 772 } 773 #endif 774 775 fc->crom_src_buf = NULL; 776 777 #ifdef FW_VMACCESS 778 xfer = fw_xfer_alloc(); 779 if(xfer == NULL) return; 780 781 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_FW, M_NOWAIT); 782 if(fwb == NULL){ 783 fw_xfer_free(xfer); 784 return; 785 } 786 xfer->hand = fw_vmaccess; 787 xfer->fc = fc; 788 xfer->sc = NULL; 789 790 fwb->start_hi = 0x2; 791 fwb->start_lo = 0; 792 fwb->addrlen = 0xffffffff; 793 fwb->xfer = xfer; 794 fw_bindadd(fc, fwb); 795 #endif 796 } 797 798 #define BIND_CMP(addr, fwb) (((addr) < (fwb)->start)?-1:\ 799 ((fwb)->end < (addr))?1:0) 800 801 /* 802 * To lookup bound process from IEEE1394 address. 803 */ 804 struct fw_bind * 805 fw_bindlookup(struct firewire_comm *fc, uint16_t dest_hi, uint32_t dest_lo) 806 { 807 u_int64_t addr; 808 struct fw_bind *tfw; 809 810 addr = ((u_int64_t)dest_hi << 32) | dest_lo; 811 STAILQ_FOREACH(tfw, &fc->binds, fclist) 812 if (BIND_CMP(addr, tfw) == 0) 813 return(tfw); 814 return(NULL); 815 } 816 817 /* 818 * To bind IEEE1394 address block to process. 819 */ 820 int 821 fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb) 822 { 823 struct fw_bind *tfw, *prev = NULL; 824 825 if (fwb->start > fwb->end) { 826 printf("%s: invalid range\n", __func__); 827 return EINVAL; 828 } 829 830 STAILQ_FOREACH(tfw, &fc->binds, fclist) { 831 if (fwb->end < tfw->start) 832 break; 833 prev = tfw; 834 } 835 if (prev == NULL) { 836 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 837 return (0); 838 } 839 if (prev->end < fwb->start) { 840 STAILQ_INSERT_AFTER(&fc->binds, prev, fwb, fclist); 841 return (0); 842 } 843 844 printf("%s: bind failed\n", __func__); 845 return (EBUSY); 846 } 847 848 /* 849 * To free IEEE1394 address block. 850 */ 851 int 852 fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb) 853 { 854 #if 0 855 struct fw_xfer *xfer, *next; 856 #endif 857 struct fw_bind *tfw; 858 int s; 859 860 s = splfw(); 861 STAILQ_FOREACH(tfw, &fc->binds, fclist) 862 if (tfw == fwb) { 863 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist); 864 goto found; 865 } 866 867 printf("%s: no such binding\n", __func__); 868 splx(s); 869 return (1); 870 found: 871 #if 0 872 /* shall we do this? */ 873 for (xfer = STAILQ_FIRST(&fwb->xferlist); xfer != NULL; xfer = next) { 874 next = STAILQ_NEXT(xfer, link); 875 fw_xfer_free(xfer); 876 } 877 STAILQ_INIT(&fwb->xferlist); 878 #endif 879 880 splx(s); 881 return 0; 882 } 883 884 int 885 fw_xferlist_add(struct fw_xferlist *q, struct malloc_type *type, 886 int slen, int rlen, int n, 887 struct firewire_comm *fc, void *sc, void (*hand)(struct fw_xfer *)) 888 { 889 int i, s; 890 struct fw_xfer *xfer; 891 892 for (i = 0; i < n; i++) { 893 xfer = fw_xfer_alloc_buf(type, slen, rlen); 894 if (xfer == NULL) 895 return (n); 896 xfer->fc = fc; 897 xfer->sc = sc; 898 xfer->hand = hand; 899 s = splfw(); 900 STAILQ_INSERT_TAIL(q, xfer, link); 901 splx(s); 902 } 903 return (n); 904 } 905 906 void 907 fw_xferlist_remove(struct fw_xferlist *q) 908 { 909 struct fw_xfer *xfer, *next; 910 911 for (xfer = STAILQ_FIRST(q); xfer != NULL; xfer = next) { 912 next = STAILQ_NEXT(xfer, link); 913 fw_xfer_free_buf(xfer); 914 } 915 STAILQ_INIT(q); 916 } 917 918 /* 919 * To free transaction label. 920 */ 921 static void 922 fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer) 923 { 924 struct fw_xfer *txfer; 925 int s; 926 927 if (xfer->tl < 0) 928 return; 929 930 s = splfw(); 931 #if 1 /* make sure the label is allocated */ 932 STAILQ_FOREACH(txfer, &fc->tlabels[xfer->tl], tlabel) 933 if(txfer == xfer) 934 break; 935 if (txfer == NULL) { 936 printf("%s: the xfer is not in the tlabel(%d)\n", 937 __FUNCTION__, xfer->tl); 938 splx(s); 939 return; 940 } 941 #endif 942 943 STAILQ_REMOVE(&fc->tlabels[xfer->tl], xfer, fw_xfer, tlabel); 944 splx(s); 945 return; 946 } 947 948 /* 949 * To obtain XFER structure by transaction label. 950 */ 951 static struct fw_xfer * 952 fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel) 953 { 954 struct fw_xfer *xfer; 955 int s = splfw(); 956 957 STAILQ_FOREACH(xfer, &fc->tlabels[tlabel], tlabel) 958 if(xfer->send.hdr.mode.hdr.dst == node) { 959 splx(s); 960 if (firewire_debug > 2) 961 printf("fw_tl2xfer: found tl=%d\n", tlabel); 962 return(xfer); 963 } 964 if (firewire_debug > 1) 965 printf("fw_tl2xfer: not found tl=%d\n", tlabel); 966 splx(s); 967 return(NULL); 968 } 969 970 /* 971 * To allocate IEEE1394 XFER structure. 972 */ 973 struct fw_xfer * 974 fw_xfer_alloc(struct malloc_type *type) 975 { 976 struct fw_xfer *xfer; 977 978 xfer = malloc(sizeof(struct fw_xfer), type, M_NOWAIT | M_ZERO); 979 if (xfer == NULL) 980 return xfer; 981 982 xfer->malloc = type; 983 984 return xfer; 985 } 986 987 struct fw_xfer * 988 fw_xfer_alloc_buf(struct malloc_type *type, int send_len, int recv_len) 989 { 990 struct fw_xfer *xfer; 991 992 xfer = fw_xfer_alloc(type); 993 if (xfer == NULL) 994 return(NULL); 995 xfer->send.pay_len = send_len; 996 xfer->recv.pay_len = recv_len; 997 if (send_len > 0) { 998 xfer->send.payload = malloc(send_len, type, M_NOWAIT | M_ZERO); 999 if (xfer->send.payload == NULL) { 1000 fw_xfer_free(xfer); 1001 return(NULL); 1002 } 1003 } 1004 if (recv_len > 0) { 1005 xfer->recv.payload = malloc(recv_len, type, M_NOWAIT); 1006 if (xfer->recv.payload == NULL) { 1007 if (xfer->send.payload != NULL) 1008 free(xfer->send.payload, type); 1009 fw_xfer_free(xfer); 1010 return(NULL); 1011 } 1012 } 1013 return(xfer); 1014 } 1015 1016 /* 1017 * IEEE1394 XFER post process. 1018 */ 1019 void 1020 fw_xfer_done(struct fw_xfer *xfer) 1021 { 1022 if (xfer->hand == NULL) { 1023 printf("hand == NULL\n"); 1024 return; 1025 } 1026 1027 if (xfer->fc == NULL) 1028 panic("fw_xfer_done: why xfer->fc is NULL?"); 1029 1030 fw_tl_free(xfer->fc, xfer); 1031 xfer->hand(xfer); 1032 } 1033 1034 void 1035 fw_xfer_unload(struct fw_xfer* xfer) 1036 { 1037 int s; 1038 1039 if(xfer == NULL ) return; 1040 if(xfer->state == FWXF_INQ){ 1041 printf("fw_xfer_free FWXF_INQ\n"); 1042 s = splfw(); 1043 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link); 1044 xfer->q->queued --; 1045 splx(s); 1046 } 1047 if (xfer->fc != NULL) { 1048 #if 1 1049 if(xfer->state == FWXF_START) 1050 /* 1051 * This could happen if: 1052 * 1. We call fwohci_arcv() before fwohci_txd(). 1053 * 2. firewire_watch() is called. 1054 */ 1055 printf("fw_xfer_free FWXF_START\n"); 1056 #endif 1057 } 1058 xfer->state = FWXF_INIT; 1059 xfer->resp = 0; 1060 } 1061 /* 1062 * To free IEEE1394 XFER structure. 1063 */ 1064 void 1065 fw_xfer_free_buf( struct fw_xfer* xfer) 1066 { 1067 if (xfer == NULL) { 1068 printf("%s: xfer == NULL\n", __func__); 1069 return; 1070 } 1071 fw_xfer_unload(xfer); 1072 if(xfer->send.payload != NULL){ 1073 free(xfer->send.payload, xfer->malloc); 1074 } 1075 if(xfer->recv.payload != NULL){ 1076 free(xfer->recv.payload, xfer->malloc); 1077 } 1078 free(xfer, xfer->malloc); 1079 } 1080 1081 void 1082 fw_xfer_free( struct fw_xfer* xfer) 1083 { 1084 if (xfer == NULL) { 1085 printf("%s: xfer == NULL\n", __func__); 1086 return; 1087 } 1088 fw_xfer_unload(xfer); 1089 free(xfer, xfer->malloc); 1090 } 1091 1092 void 1093 fw_asy_callback_free(struct fw_xfer *xfer) 1094 { 1095 #if 0 1096 printf("asyreq done state=%d resp=%d\n", 1097 xfer->state, xfer->resp); 1098 #endif 1099 fw_xfer_free(xfer); 1100 } 1101 1102 /* 1103 * To configure PHY. 1104 */ 1105 static void 1106 fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count) 1107 { 1108 struct fw_xfer *xfer; 1109 struct fw_pkt *fp; 1110 1111 fc->status = FWBUSPHYCONF; 1112 1113 xfer = fw_xfer_alloc(M_FWXFER); 1114 if (xfer == NULL) 1115 return; 1116 xfer->fc = fc; 1117 xfer->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 */ 1139 static void 1140 fw_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 */ 1156 void 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 */ 1272 static void 1273 fw_bus_probe(struct firewire_comm *fc) 1274 { 1275 int s; 1276 struct fw_device *fwdev; 1277 1278 s = splfw(); 1279 fc->status = FWBUSEXPLORE; 1280 1281 /* Invalidate all devices, just after bus reset. */ 1282 STAILQ_FOREACH(fwdev, &fc->devices, link) 1283 if (fwdev->status != FWDEVINVAL) { 1284 fwdev->status = FWDEVINVAL; 1285 fwdev->rcnt = 0; 1286 } 1287 1288 fc->ongonode = 0; 1289 fc->ongoaddr = CSRROMOFF; 1290 fc->ongodev = NULL; 1291 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1292 fw_bus_explore(fc); 1293 splx(s); 1294 } 1295 1296 /* 1297 * Find the self_id packet for a node, ignoring sequels. 1298 */ 1299 static union fw_self_id * 1300 fw_find_self_id(struct firewire_comm *fc, int node) 1301 { 1302 uint32_t i; 1303 union fw_self_id *s; 1304 1305 for (i = 0; i < fc->topology_map->self_id_count; i++) { 1306 s = &fc->topology_map->self_id[i]; 1307 if (s->p0.sequel) 1308 continue; 1309 if (s->p0.phy_id == node) 1310 return s; 1311 } 1312 return 0; 1313 } 1314 1315 /* 1316 * To collect device informations on the IEEE1394 bus. 1317 */ 1318 static void 1319 fw_bus_explore(struct firewire_comm *fc ) 1320 { 1321 int err = 0; 1322 struct fw_device *fwdev, *pfwdev, *tfwdev; 1323 uint32_t addr; 1324 struct fw_xfer *xfer; 1325 struct fw_pkt *fp; 1326 union fw_self_id *fwsid; 1327 1328 if(fc->status != FWBUSEXPLORE) 1329 return; 1330 1331 loop: 1332 if(fc->ongonode == fc->nodeid) fc->ongonode++; 1333 1334 if(fc->ongonode > fc->max_node) goto done; 1335 if(fc->ongonode >= 0x3f) goto done; 1336 1337 /* check link */ 1338 /* XXX we need to check phy_id first */ 1339 fwsid = fw_find_self_id(fc, fc->ongonode); 1340 if (!fwsid || !fwsid->p0.link_active) { 1341 if (firewire_debug) 1342 printf("node%d: link down\n", fc->ongonode); 1343 fc->ongonode++; 1344 goto loop; 1345 } 1346 1347 if(fc->ongoaddr <= CSRROMOFF && 1348 fc->ongoeui.hi == 0xffffffff && 1349 fc->ongoeui.lo == 0xffffffff ){ 1350 fc->ongoaddr = CSRROMOFF; 1351 addr = 0xf0000000 | fc->ongoaddr; 1352 }else if(fc->ongoeui.hi == 0xffffffff ){ 1353 fc->ongoaddr = CSRROMOFF + 0xc; 1354 addr = 0xf0000000 | fc->ongoaddr; 1355 }else if(fc->ongoeui.lo == 0xffffffff ){ 1356 fc->ongoaddr = CSRROMOFF + 0x10; 1357 addr = 0xf0000000 | fc->ongoaddr; 1358 }else if(fc->ongodev == NULL){ 1359 STAILQ_FOREACH(fwdev, &fc->devices, link) 1360 if (FW_EUI64_EQUAL(fwdev->eui, fc->ongoeui)) 1361 break; 1362 if(fwdev != NULL){ 1363 fwdev->dst = fc->ongonode; 1364 fwdev->status = FWDEVINIT; 1365 fc->ongodev = fwdev; 1366 fc->ongoaddr = CSRROMOFF; 1367 addr = 0xf0000000 | fc->ongoaddr; 1368 goto dorequest; 1369 } 1370 fwdev = malloc(sizeof(struct fw_device), M_FW, 1371 M_NOWAIT | M_ZERO); 1372 if(fwdev == NULL) 1373 return; 1374 fwdev->fc = fc; 1375 fwdev->rommax = 0; 1376 fwdev->dst = fc->ongonode; 1377 fwdev->eui.hi = fc->ongoeui.hi; fwdev->eui.lo = fc->ongoeui.lo; 1378 fwdev->status = FWDEVINIT; 1379 fwdev->speed = fc->speed_map->speed[fc->nodeid][fc->ongonode]; 1380 1381 pfwdev = NULL; 1382 STAILQ_FOREACH(tfwdev, &fc->devices, link) { 1383 if (tfwdev->eui.hi > fwdev->eui.hi || 1384 (tfwdev->eui.hi == fwdev->eui.hi && 1385 tfwdev->eui.lo > fwdev->eui.lo)) 1386 break; 1387 pfwdev = tfwdev; 1388 } 1389 if (pfwdev == NULL) 1390 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link); 1391 else 1392 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link); 1393 1394 device_printf(fc->bdev, "New %s device ID:%08x%08x\n", 1395 linkspeed[fwdev->speed], 1396 fc->ongoeui.hi, fc->ongoeui.lo); 1397 1398 fc->ongodev = fwdev; 1399 fc->ongoaddr = CSRROMOFF; 1400 addr = 0xf0000000 | fc->ongoaddr; 1401 }else{ 1402 addr = 0xf0000000 | fc->ongoaddr; 1403 } 1404 dorequest: 1405 #if 0 1406 xfer = asyreqq(fc, FWSPD_S100, 0, 0, 1407 ((FWLOCALBUS | fc->ongonode) << 16) | 0xffff , addr, 1408 fw_bus_explore_callback); 1409 if(xfer == NULL) goto done; 1410 #else 1411 xfer = fw_xfer_alloc(M_FWXFER); 1412 if(xfer == NULL){ 1413 goto done; 1414 } 1415 xfer->send.spd = 0; 1416 fp = &xfer->send.hdr; 1417 fp->mode.rreqq.dest_hi = 0xffff; 1418 fp->mode.rreqq.tlrt = 0; 1419 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1420 fp->mode.rreqq.pri = 0; 1421 fp->mode.rreqq.src = 0; 1422 fp->mode.rreqq.dst = FWLOCALBUS | fc->ongonode; 1423 fp->mode.rreqq.dest_lo = addr; 1424 xfer->hand = fw_bus_explore_callback; 1425 1426 if (firewire_debug) 1427 printf("node%d: explore addr=0x%x\n", 1428 fc->ongonode, fc->ongoaddr); 1429 err = fw_asyreq(fc, -1, xfer); 1430 if(err){ 1431 fw_xfer_free( xfer); 1432 return; 1433 } 1434 #endif 1435 return; 1436 done: 1437 /* fw_attach_devs */ 1438 fc->status = FWBUSEXPDONE; 1439 if (firewire_debug) 1440 printf("bus_explore done\n"); 1441 fw_attach_dev(fc); 1442 return; 1443 1444 } 1445 1446 /* Portable Async. request read quad */ 1447 struct fw_xfer * 1448 asyreqq(struct firewire_comm *fc, uint8_t spd, uint8_t tl, uint8_t rt, 1449 uint32_t addr_hi, uint32_t addr_lo, 1450 void (*hand) (struct fw_xfer*)) 1451 { 1452 struct fw_xfer *xfer; 1453 struct fw_pkt *fp; 1454 int err; 1455 1456 xfer = fw_xfer_alloc(M_FWXFER); 1457 if (xfer == NULL) 1458 return NULL; 1459 1460 xfer->send.spd = spd; /* XXX:min(spd, fc->spd) */ 1461 fp = &xfer->send.hdr; 1462 fp->mode.rreqq.dest_hi = addr_hi & 0xffff; 1463 if(tl & FWP_TL_VALID){ 1464 fp->mode.rreqq.tlrt = (tl & 0x3f) << 2; 1465 }else{ 1466 fp->mode.rreqq.tlrt = 0; 1467 } 1468 fp->mode.rreqq.tlrt |= rt & 0x3; 1469 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1470 fp->mode.rreqq.pri = 0; 1471 fp->mode.rreqq.src = 0; 1472 fp->mode.rreqq.dst = addr_hi >> 16; 1473 fp->mode.rreqq.dest_lo = addr_lo; 1474 xfer->hand = hand; 1475 1476 err = fw_asyreq(fc, -1, xfer); 1477 if(err){ 1478 fw_xfer_free( xfer); 1479 return NULL; 1480 } 1481 return xfer; 1482 } 1483 1484 /* 1485 * Callback for the IEEE1394 bus information collection. 1486 */ 1487 static void 1488 fw_bus_explore_callback(struct fw_xfer *xfer) 1489 { 1490 struct firewire_comm *fc; 1491 struct fw_pkt *sfp,*rfp; 1492 struct csrhdr *chdr; 1493 struct csrdir *csrd; 1494 struct csrreg *csrreg; 1495 uint32_t offset; 1496 1497 1498 if(xfer == NULL) { 1499 printf("xfer == NULL\n"); 1500 return; 1501 } 1502 fc = xfer->fc; 1503 1504 if (firewire_debug) 1505 printf("node%d: callback addr=0x%x\n", 1506 fc->ongonode, fc->ongoaddr); 1507 1508 if(xfer->resp != 0){ 1509 device_printf(fc->bdev, 1510 "bus_explore node=%d addr=0x%x resp=%d\n", 1511 fc->ongonode, fc->ongoaddr, xfer->resp); 1512 goto errnode; 1513 } 1514 1515 sfp = &xfer->send.hdr; 1516 rfp = &xfer->recv.hdr; 1517 #if 0 1518 { 1519 uint32_t *qld; 1520 int i; 1521 qld = (uint32_t *)xfer->recv.buf; 1522 printf("len:%d\n", xfer->recv.len); 1523 for( i = 0 ; i <= xfer->recv.len && i < 32; i+= 4){ 1524 printf("0x%08x ", rfp->mode.ld[i/4]); 1525 if((i % 16) == 15) printf("\n"); 1526 } 1527 if((i % 16) != 15) printf("\n"); 1528 } 1529 #endif 1530 if(fc->ongodev == NULL){ 1531 if(sfp->mode.rreqq.dest_lo == (0xf0000000 | CSRROMOFF)){ 1532 rfp->mode.rresq.data = ntohl(rfp->mode.rresq.data); 1533 chdr = (struct csrhdr *)(&rfp->mode.rresq.data); 1534 /* If CSR is minimal confinguration, more investigation is not needed. */ 1535 if(chdr->info_len == 1){ 1536 if (firewire_debug) 1537 printf("node%d: minimal config\n", 1538 fc->ongonode); 1539 goto nextnode; 1540 }else{ 1541 fc->ongoaddr = CSRROMOFF + 0xc; 1542 } 1543 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0xc))){ 1544 fc->ongoeui.hi = ntohl(rfp->mode.rresq.data); 1545 fc->ongoaddr = CSRROMOFF + 0x10; 1546 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0x10))){ 1547 fc->ongoeui.lo = ntohl(rfp->mode.rresq.data); 1548 if (fc->ongoeui.hi == 0 && fc->ongoeui.lo == 0) { 1549 if (firewire_debug) 1550 printf("node%d: eui64 is zero.\n", 1551 fc->ongonode); 1552 goto nextnode; 1553 } 1554 fc->ongoaddr = CSRROMOFF; 1555 } 1556 }else{ 1557 if (fc->ongoaddr == CSRROMOFF && 1558 fc->ongodev->csrrom[0] == ntohl(rfp->mode.rresq.data)) { 1559 fc->ongodev->status = FWDEVATTACHED; 1560 goto nextnode; 1561 } 1562 fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4] = ntohl(rfp->mode.rresq.data); 1563 if(fc->ongoaddr > fc->ongodev->rommax){ 1564 fc->ongodev->rommax = fc->ongoaddr; 1565 } 1566 csrd = SLIST_FIRST(&fc->ongocsr); 1567 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1568 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1569 offset = CSRROMOFF; 1570 }else{ 1571 chdr = (struct csrhdr *)&fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]; 1572 offset = csrd->off; 1573 } 1574 if(fc->ongoaddr > (CSRROMOFF + 0x14) && fc->ongoaddr != offset){ 1575 csrreg = (struct csrreg *)&fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4]; 1576 if( csrreg->key == 0x81 || csrreg->key == 0xd1){ 1577 csrd = SLIST_FIRST(&fc->csrfree); 1578 if(csrd == NULL){ 1579 goto nextnode; 1580 }else{ 1581 csrd->ongoaddr = fc->ongoaddr; 1582 fc->ongoaddr += csrreg->val * 4; 1583 csrd->off = fc->ongoaddr; 1584 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1585 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1586 goto nextaddr; 1587 } 1588 } 1589 } 1590 fc->ongoaddr += 4; 1591 if(((fc->ongoaddr - offset)/4 > chdr->crc_len) && 1592 (fc->ongodev->rommax < 0x414)){ 1593 if(fc->ongodev->rommax <= 0x414){ 1594 csrd = SLIST_FIRST(&fc->csrfree); 1595 if(csrd == NULL) goto nextnode; 1596 csrd->off = fc->ongoaddr; 1597 csrd->ongoaddr = fc->ongoaddr; 1598 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1599 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1600 } 1601 goto nextaddr; 1602 } 1603 1604 while(((fc->ongoaddr - offset)/4 > chdr->crc_len)){ 1605 if(csrd == NULL){ 1606 goto nextnode; 1607 }; 1608 fc->ongoaddr = csrd->ongoaddr + 4; 1609 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1610 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1611 csrd = SLIST_FIRST(&fc->ongocsr); 1612 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1613 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1614 offset = CSRROMOFF; 1615 }else{ 1616 chdr = (struct csrhdr *)&(fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]); 1617 offset = csrd->off; 1618 } 1619 } 1620 if((fc->ongoaddr - CSRROMOFF) > CSRROMSIZE){ 1621 goto nextnode; 1622 } 1623 } 1624 nextaddr: 1625 fw_xfer_free( xfer); 1626 fw_bus_explore(fc); 1627 return; 1628 errnode: 1629 if (fc->ongodev != NULL) { 1630 fc->ongodev->status = FWDEVINVAL; 1631 /* Invalidate ROM */ 1632 fc->ongodev->csrrom[0] = 0; 1633 } 1634 nextnode: 1635 fw_xfer_free( xfer); 1636 fc->ongonode++; 1637 /* housekeeping work space */ 1638 fc->ongoaddr = CSRROMOFF; 1639 fc->ongodev = NULL; 1640 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1641 while((csrd = SLIST_FIRST(&fc->ongocsr)) != NULL){ 1642 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1643 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1644 } 1645 fw_bus_explore(fc); 1646 return; 1647 } 1648 1649 /* 1650 * To attach sub-devices layer onto IEEE1394 bus. 1651 */ 1652 static void 1653 fw_attach_dev(struct firewire_comm *fc) 1654 { 1655 struct fw_device *fwdev, *next; 1656 int i, err; 1657 device_t *devlistp; 1658 int devcnt; 1659 struct firewire_dev_comm *fdc; 1660 1661 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1662 next = STAILQ_NEXT(fwdev, link); 1663 if (fwdev->status == FWDEVINIT) { 1664 fwdev->status = FWDEVATTACHED; 1665 } else if (fwdev->status == FWDEVINVAL) { 1666 fwdev->rcnt ++; 1667 if (fwdev->rcnt > hold_count) { 1668 /* 1669 * Remove devices which have not been seen 1670 * for a while. 1671 */ 1672 STAILQ_REMOVE(&fc->devices, fwdev, fw_device, 1673 link); 1674 free(fwdev, M_FW); 1675 } 1676 } 1677 } 1678 1679 err = device_get_children(fc->bdev, &devlistp, &devcnt); 1680 if( err != 0 ) 1681 return; 1682 for( i = 0 ; i < devcnt ; i++){ 1683 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 1684 fdc = device_get_softc(devlistp[i]); 1685 if (fdc->post_explore != NULL) 1686 fdc->post_explore(fdc); 1687 } 1688 } 1689 free(devlistp, M_TEMP); 1690 1691 return; 1692 } 1693 1694 /* 1695 * To allocate unique transaction label. 1696 */ 1697 static int 1698 fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer) 1699 { 1700 u_int i; 1701 struct fw_xfer *txfer; 1702 int s; 1703 static uint32_t label = 0; 1704 1705 s = splfw(); 1706 for( i = 0 ; i < 0x40 ; i ++){ 1707 label = (label + 1) & 0x3f; 1708 STAILQ_FOREACH(txfer, &fc->tlabels[label], tlabel) 1709 if (txfer->send.hdr.mode.hdr.dst == 1710 xfer->send.hdr.mode.hdr.dst) 1711 break; 1712 if(txfer == NULL) { 1713 STAILQ_INSERT_TAIL(&fc->tlabels[label], xfer, tlabel); 1714 splx(s); 1715 if (firewire_debug > 1) 1716 printf("fw_get_tlabel: dst=%d tl=%d\n", 1717 xfer->send.hdr.mode.hdr.dst, label); 1718 return(label); 1719 } 1720 } 1721 splx(s); 1722 1723 if (firewire_debug > 1) 1724 printf("fw_get_tlabel: no free tlabel\n"); 1725 return(-1); 1726 } 1727 1728 static void 1729 fw_rcv_copy(struct fw_rcv_buf *rb) 1730 { 1731 struct fw_pkt *pkt; 1732 u_char *p; 1733 struct tcode_info *tinfo; 1734 u_int res, i, len, plen; 1735 1736 rb->xfer->recv.spd = rb->spd; 1737 1738 pkt = (struct fw_pkt *)rb->vec->iov_base; 1739 tinfo = &rb->fc->tcode[pkt->mode.hdr.tcode]; 1740 1741 /* Copy header */ 1742 p = (u_char *)&rb->xfer->recv.hdr; 1743 bcopy(rb->vec->iov_base, p, tinfo->hdr_len); 1744 rb->vec->iov_base = (u_char *)rb->vec->iov_base + tinfo->hdr_len; 1745 rb->vec->iov_len -= tinfo->hdr_len; 1746 1747 /* Copy payload */ 1748 p = (u_char *)rb->xfer->recv.payload; 1749 res = rb->xfer->recv.pay_len; 1750 1751 /* special handling for RRESQ */ 1752 if (pkt->mode.hdr.tcode == FWTCODE_RRESQ && 1753 p != NULL && res >= sizeof(uint32_t)) { 1754 *(uint32_t *)p = pkt->mode.rresq.data; 1755 rb->xfer->recv.pay_len = sizeof(uint32_t); 1756 return; 1757 } 1758 1759 if ((tinfo->flag & FWTI_BLOCK_ASY) == 0) 1760 return; 1761 1762 plen = pkt->mode.rresb.len; 1763 1764 for (i = 0; i < rb->nvec; i++, rb->vec++) { 1765 len = MIN(rb->vec->iov_len, plen); 1766 if (res < len) { 1767 printf("rcv buffer(%d) is %d bytes short.\n", 1768 rb->xfer->recv.pay_len, len - res); 1769 len = res; 1770 } 1771 bcopy(rb->vec->iov_base, p, len); 1772 p += len; 1773 res -= len; 1774 plen -= len; 1775 if (res == 0 || plen == 0) 1776 break; 1777 } 1778 rb->xfer->recv.pay_len -= res; 1779 1780 } 1781 1782 /* 1783 * Generic packet receiving process. 1784 */ 1785 void 1786 fw_rcv(struct fw_rcv_buf *rb) 1787 { 1788 struct fw_pkt *fp, *resfp; 1789 struct fw_bind *bind; 1790 int tcode; 1791 int i, len, oldstate; 1792 #if 0 1793 { 1794 uint32_t *qld; 1795 int i; 1796 qld = (uint32_t *)buf; 1797 printf("spd %d len:%d\n", spd, len); 1798 for( i = 0 ; i <= len && i < 32; i+= 4){ 1799 printf("0x%08x ", ntohl(qld[i/4])); 1800 if((i % 16) == 15) printf("\n"); 1801 } 1802 if((i % 16) != 15) printf("\n"); 1803 } 1804 #endif 1805 fp = (struct fw_pkt *)rb->vec[0].iov_base; 1806 tcode = fp->mode.common.tcode; 1807 switch (tcode) { 1808 case FWTCODE_WRES: 1809 case FWTCODE_RRESQ: 1810 case FWTCODE_RRESB: 1811 case FWTCODE_LRES: 1812 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1813 fp->mode.hdr.tlrt >> 2); 1814 if(rb->xfer == NULL) { 1815 printf("fw_rcv: unknown response " 1816 "%s(%x) src=0x%x tl=0x%x rt=%d data=0x%x\n", 1817 tcode_str[tcode], tcode, 1818 fp->mode.hdr.src, 1819 fp->mode.hdr.tlrt >> 2, 1820 fp->mode.hdr.tlrt & 3, 1821 fp->mode.rresq.data); 1822 #if 1 1823 printf("try ad-hoc work around!!\n"); 1824 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1825 (fp->mode.hdr.tlrt >> 2)^3); 1826 if (rb->xfer == NULL) { 1827 printf("no use...\n"); 1828 return; 1829 } 1830 #else 1831 return; 1832 #endif 1833 } 1834 fw_rcv_copy(rb); 1835 if (rb->xfer->recv.hdr.mode.wres.rtcode != RESP_CMP) 1836 rb->xfer->resp = EIO; 1837 else 1838 rb->xfer->resp = 0; 1839 /* make sure the packet is drained in AT queue */ 1840 oldstate = rb->xfer->state; 1841 rb->xfer->state = FWXF_RCVD; 1842 switch (oldstate) { 1843 case FWXF_SENT: 1844 fw_xfer_done(rb->xfer); 1845 break; 1846 case FWXF_START: 1847 #if 0 1848 if (firewire_debug) 1849 printf("not sent yet tl=%x\n", rb->xfer->tl); 1850 #endif 1851 break; 1852 default: 1853 printf("unexpected state %d\n", rb->xfer->state); 1854 } 1855 return; 1856 case FWTCODE_WREQQ: 1857 case FWTCODE_WREQB: 1858 case FWTCODE_RREQQ: 1859 case FWTCODE_RREQB: 1860 case FWTCODE_LREQ: 1861 bind = fw_bindlookup(rb->fc, fp->mode.rreqq.dest_hi, 1862 fp->mode.rreqq.dest_lo); 1863 if(bind == NULL){ 1864 printf("Unknown service addr 0x%04x:0x%08x %s(%x)" 1865 #if defined(__DragonFly__) || __FreeBSD_version < 500000 1866 " src=0x%x data=%lx\n", 1867 #else 1868 " src=0x%x data=%x\n", 1869 #endif 1870 fp->mode.wreqq.dest_hi, fp->mode.wreqq.dest_lo, 1871 tcode_str[tcode], tcode, 1872 fp->mode.hdr.src, ntohl(fp->mode.wreqq.data)); 1873 if (rb->fc->status == FWBUSRESET) { 1874 printf("fw_rcv: cannot respond(bus reset)!\n"); 1875 return; 1876 } 1877 rb->xfer = fw_xfer_alloc(M_FWXFER); 1878 if(rb->xfer == NULL){ 1879 return; 1880 } 1881 rb->xfer->send.spd = rb->spd; 1882 rb->xfer->send.pay_len = 0; 1883 resfp = &rb->xfer->send.hdr; 1884 switch (tcode) { 1885 case FWTCODE_WREQQ: 1886 case FWTCODE_WREQB: 1887 resfp->mode.hdr.tcode = FWTCODE_WRES; 1888 break; 1889 case FWTCODE_RREQQ: 1890 resfp->mode.hdr.tcode = FWTCODE_RRESQ; 1891 break; 1892 case FWTCODE_RREQB: 1893 resfp->mode.hdr.tcode = FWTCODE_RRESB; 1894 break; 1895 case FWTCODE_LREQ: 1896 resfp->mode.hdr.tcode = FWTCODE_LRES; 1897 break; 1898 } 1899 resfp->mode.hdr.dst = fp->mode.hdr.src; 1900 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt; 1901 resfp->mode.hdr.pri = fp->mode.hdr.pri; 1902 resfp->mode.rresb.rtcode = RESP_ADDRESS_ERROR; 1903 resfp->mode.rresb.extcode = 0; 1904 resfp->mode.rresb.len = 0; 1905 /* 1906 rb->xfer->hand = fw_asy_callback; 1907 */ 1908 rb->xfer->hand = fw_xfer_free; 1909 if(fw_asyreq(rb->fc, -1, rb->xfer)){ 1910 fw_xfer_free(rb->xfer); 1911 return; 1912 } 1913 return; 1914 } 1915 len = 0; 1916 for (i = 0; i < rb->nvec; i ++) 1917 len += rb->vec[i].iov_len; 1918 rb->xfer = STAILQ_FIRST(&bind->xferlist); 1919 if (rb->xfer == NULL) { 1920 #if 1 1921 printf("Discard a packet for this bind.\n"); 1922 #endif 1923 return; 1924 } 1925 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 1926 fw_rcv_copy(rb); 1927 rb->xfer->hand(rb->xfer); 1928 return; 1929 #if 0 /* shouldn't happen ?? or for GASP */ 1930 case FWTCODE_STREAM: 1931 { 1932 struct fw_xferq *xferq; 1933 1934 xferq = rb->fc->ir[sub]; 1935 #if 0 1936 printf("stream rcv dma %d len %d off %d spd %d\n", 1937 sub, len, off, spd); 1938 #endif 1939 if(xferq->queued >= xferq->maxq) { 1940 printf("receive queue is full\n"); 1941 return; 1942 } 1943 /* XXX get xfer from xfer queue, we don't need copy for 1944 per packet mode */ 1945 rb->xfer = fw_xfer_alloc_buf(M_FWXFER, 0, /* XXX */ 1946 vec[0].iov_len); 1947 if (rb->xfer == NULL) 1948 return; 1949 fw_rcv_copy(rb) 1950 s = splfw(); 1951 xferq->queued++; 1952 STAILQ_INSERT_TAIL(&xferq->q, rb->xfer, link); 1953 splx(s); 1954 sc = device_get_softc(rb->fc->bdev); 1955 #if defined(__DragonFly__) || __FreeBSD_version < 500000 1956 if (&xferq->rsel.si_pid != 0) 1957 #else 1958 if (SEL_WAITING(&xferq->rsel)) 1959 #endif 1960 selwakeuppri(&xferq->rsel, FWPRI); 1961 if (xferq->flag & FWXFERQ_WAKEUP) { 1962 xferq->flag &= ~FWXFERQ_WAKEUP; 1963 wakeup((caddr_t)xferq); 1964 } 1965 if (xferq->flag & FWXFERQ_HANDLER) { 1966 xferq->hand(xferq); 1967 } 1968 return; 1969 break; 1970 } 1971 #endif 1972 default: 1973 printf("fw_rcv: unknow tcode %d\n", tcode); 1974 break; 1975 } 1976 } 1977 1978 /* 1979 * Post process for Bus Manager election process. 1980 */ 1981 static void 1982 fw_try_bmr_callback(struct fw_xfer *xfer) 1983 { 1984 struct firewire_comm *fc; 1985 int bmr; 1986 1987 if (xfer == NULL) 1988 return; 1989 fc = xfer->fc; 1990 if (xfer->resp != 0) 1991 goto error; 1992 if (xfer->recv.payload == NULL) 1993 goto error; 1994 if (xfer->recv.hdr.mode.lres.rtcode != FWRCODE_COMPLETE) 1995 goto error; 1996 1997 bmr = ntohl(xfer->recv.payload[0]); 1998 if (bmr == 0x3f) 1999 bmr = fc->nodeid; 2000 2001 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f); 2002 fw_xfer_free_buf(xfer); 2003 fw_bmr(fc); 2004 return; 2005 2006 error: 2007 device_printf(fc->bdev, "bus manager election failed\n"); 2008 fw_xfer_free_buf(xfer); 2009 } 2010 2011 2012 /* 2013 * To candidate Bus Manager election process. 2014 */ 2015 static void 2016 fw_try_bmr(void *arg) 2017 { 2018 struct fw_xfer *xfer; 2019 struct firewire_comm *fc = (struct firewire_comm *)arg; 2020 struct fw_pkt *fp; 2021 int err = 0; 2022 2023 xfer = fw_xfer_alloc_buf(M_FWXFER, 8, 4); 2024 if(xfer == NULL){ 2025 return; 2026 } 2027 xfer->send.spd = 0; 2028 fc->status = FWBUSMGRELECT; 2029 2030 fp = &xfer->send.hdr; 2031 fp->mode.lreq.dest_hi = 0xffff; 2032 fp->mode.lreq.tlrt = 0; 2033 fp->mode.lreq.tcode = FWTCODE_LREQ; 2034 fp->mode.lreq.pri = 0; 2035 fp->mode.lreq.src = 0; 2036 fp->mode.lreq.len = 8; 2037 fp->mode.lreq.extcode = EXTCODE_CMP_SWAP; 2038 fp->mode.lreq.dst = FWLOCALBUS | fc->irm; 2039 fp->mode.lreq.dest_lo = 0xf0000000 | BUS_MGR_ID; 2040 xfer->send.payload[0] = htonl(0x3f); 2041 xfer->send.payload[1] = htonl(fc->nodeid); 2042 xfer->hand = fw_try_bmr_callback; 2043 2044 err = fw_asyreq(fc, -1, xfer); 2045 if(err){ 2046 fw_xfer_free_buf(xfer); 2047 return; 2048 } 2049 return; 2050 } 2051 2052 #ifdef FW_VMACCESS 2053 /* 2054 * Software implementation for physical memory block access. 2055 * XXX:Too slow, usef for debug purpose only. 2056 */ 2057 static void 2058 fw_vmaccess(struct fw_xfer *xfer){ 2059 struct fw_pkt *rfp, *sfp = NULL; 2060 uint32_t *ld = (uint32_t *)xfer->recv.buf; 2061 2062 printf("vmaccess spd:%2x len:%03x data:%08x %08x %08x %08x\n", 2063 xfer->spd, xfer->recv.len, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 2064 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 2065 if(xfer->resp != 0){ 2066 fw_xfer_free( xfer); 2067 return; 2068 } 2069 if(xfer->recv.buf == NULL){ 2070 fw_xfer_free( xfer); 2071 return; 2072 } 2073 rfp = (struct fw_pkt *)xfer->recv.buf; 2074 switch(rfp->mode.hdr.tcode){ 2075 /* XXX need fix for 64bit arch */ 2076 case FWTCODE_WREQB: 2077 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2078 xfer->send.len = 12; 2079 sfp = (struct fw_pkt *)xfer->send.buf; 2080 bcopy(rfp->mode.wreqb.payload, 2081 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len)); 2082 sfp->mode.wres.tcode = FWTCODE_WRES; 2083 sfp->mode.wres.rtcode = 0; 2084 break; 2085 case FWTCODE_WREQQ: 2086 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2087 xfer->send.len = 12; 2088 sfp->mode.wres.tcode = FWTCODE_WRES; 2089 *((uint32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data; 2090 sfp->mode.wres.rtcode = 0; 2091 break; 2092 case FWTCODE_RREQB: 2093 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_FW, M_NOWAIT); 2094 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len); 2095 sfp = (struct fw_pkt *)xfer->send.buf; 2096 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo), 2097 sfp->mode.rresb.payload, (uint16_t)ntohs(rfp->mode.rreqb.len)); 2098 sfp->mode.rresb.tcode = FWTCODE_RRESB; 2099 sfp->mode.rresb.len = rfp->mode.rreqb.len; 2100 sfp->mode.rresb.rtcode = 0; 2101 sfp->mode.rresb.extcode = 0; 2102 break; 2103 case FWTCODE_RREQQ: 2104 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 2105 xfer->send.len = 16; 2106 sfp = (struct fw_pkt *)xfer->send.buf; 2107 sfp->mode.rresq.data = *(uint32_t *)(ntohl(rfp->mode.rreqq.dest_lo)); 2108 sfp->mode.wres.tcode = FWTCODE_RRESQ; 2109 sfp->mode.rresb.rtcode = 0; 2110 break; 2111 default: 2112 fw_xfer_free( xfer); 2113 return; 2114 } 2115 sfp->mode.hdr.dst = rfp->mode.hdr.src; 2116 xfer->dst = ntohs(rfp->mode.hdr.src); 2117 xfer->hand = fw_xfer_free; 2118 2119 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt; 2120 sfp->mode.hdr.pri = 0; 2121 2122 fw_asyreq(xfer->fc, -1, xfer); 2123 /**/ 2124 return; 2125 } 2126 #endif 2127 2128 /* 2129 * CRC16 check-sum for IEEE1394 register blocks. 2130 */ 2131 uint16_t 2132 fw_crc16(uint32_t *ptr, uint32_t len){ 2133 uint32_t i, sum, crc = 0; 2134 int shift; 2135 len = (len + 3) & ~3; 2136 for(i = 0 ; i < len ; i+= 4){ 2137 for( shift = 28 ; shift >= 0 ; shift -= 4){ 2138 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf; 2139 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum; 2140 } 2141 crc &= 0xffff; 2142 } 2143 return((uint16_t) crc); 2144 } 2145 2146 static int 2147 fw_bmr(struct firewire_comm *fc) 2148 { 2149 struct fw_device fwdev; 2150 union fw_self_id *self_id; 2151 int cmstr; 2152 uint32_t quad; 2153 2154 /* Check to see if the current root node is cycle master capable */ 2155 self_id = fw_find_self_id(fc, fc->max_node); 2156 if (fc->max_node > 0) { 2157 /* XXX check cmc bit of businfo block rather than contender */ 2158 if (self_id->p0.link_active && self_id->p0.contender) 2159 cmstr = fc->max_node; 2160 else { 2161 device_printf(fc->bdev, 2162 "root node is not cycle master capable\n"); 2163 /* XXX shall we be the cycle master? */ 2164 cmstr = fc->nodeid; 2165 /* XXX need bus reset */ 2166 } 2167 } else 2168 cmstr = -1; 2169 2170 device_printf(fc->bdev, "bus manager %d ", CSRARC(fc, BUS_MGR_ID)); 2171 if(CSRARC(fc, BUS_MGR_ID) != fc->nodeid) { 2172 /* We are not the bus manager */ 2173 printf("\n"); 2174 return(0); 2175 } 2176 printf("(me)\n"); 2177 2178 /* Optimize gapcount */ 2179 if(fc->max_hop <= MAX_GAPHOP ) 2180 fw_phy_config(fc, cmstr, gap_cnt[fc->max_hop]); 2181 /* If we are the cycle master, nothing to do */ 2182 if (cmstr == fc->nodeid || cmstr == -1) 2183 return 0; 2184 /* Bus probe has not finished, make dummy fwdev for cmstr */ 2185 bzero(&fwdev, sizeof(fwdev)); 2186 fwdev.fc = fc; 2187 fwdev.dst = cmstr; 2188 fwdev.speed = 0; 2189 fwdev.maxrec = 8; /* 512 */ 2190 fwdev.status = FWDEVINIT; 2191 /* Set cmstr bit on the cycle master */ 2192 quad = htonl(1 << 8); 2193 fwmem_write_quad(&fwdev, NULL, 0/*spd*/, 2194 0xffff, 0xf0000000 | STATE_SET, &quad, fw_asy_callback_free); 2195 2196 return 0; 2197 } 2198 2199 static int 2200 fw_modevent(module_t mode, int type, void *data) 2201 { 2202 int err = 0; 2203 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2204 static eventhandler_tag fwdev_ehtag = NULL; 2205 #endif 2206 2207 switch (type) { 2208 case MOD_LOAD: 2209 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2210 fwdev_ehtag = EVENTHANDLER_REGISTER(dev_clone, 2211 fwdev_clone, 0, 1000); 2212 #endif 2213 break; 2214 case MOD_UNLOAD: 2215 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2216 if (fwdev_ehtag != NULL) 2217 EVENTHANDLER_DEREGISTER(dev_clone, fwdev_ehtag); 2218 #endif 2219 break; 2220 case MOD_SHUTDOWN: 2221 break; 2222 default: 2223 return (EOPNOTSUPP); 2224 } 2225 return (err); 2226 } 2227 2228 2229 #ifdef __DragonFly__ 2230 DECLARE_DUMMY_MODULE(firewire); 2231 #endif 2232 DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,fw_modevent,0); 2233 MODULE_VERSION(firewire, 1); 2234