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sys/dev/ieee1394/firewire.c
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1 /* $NetBSD: firewire.c,v 1.11 2006/11/16 01:32:59 christos Exp $ */ 2 /*- 3 * Copyright (c) 2003 Hidetoshi Shimokawa 4 * Copyright (c) 1998-2002 Katsushi Kobayashi and Hidetoshi Shimokawa 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the acknowledgement as bellow: 17 * 18 * This product includes software developed by K. Kobayashi and H. Shimokawa 19 * 20 * 4. The name of the author may not be used to endorse or promote products 21 * derived from this software without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 24 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 25 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 26 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 27 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 28 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 29 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 31 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 32 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 33 * POSSIBILITY OF SUCH DAMAGE. 34 * 35 * $FreeBSD: /repoman/r/ncvs/src/sys/dev/firewire/firewire.c,v 1.80 2005/01/06 01:42:41 imp Exp $ 36 * 37 */ 38 39 #if defined(__FreeBSD__) 40 #include <sys/param.h> 41 #include <sys/systm.h> 42 #include <sys/types.h> 43 44 #include <sys/kernel.h> 45 #include <sys/module.h> 46 #include <sys/malloc.h> 47 #include <sys/conf.h> 48 #include <sys/sysctl.h> 49 #include <sys/kthread.h> 50 51 #if defined(__DragonFly__) || __FreeBSD_version < 500000 52 #include <machine/clock.h> /* for DELAY() */ 53 #endif 54 55 #include <sys/bus.h> /* used by smbus and newbus */ 56 #include <machine/bus.h> 57 58 #ifdef __DragonFly__ 59 #include "fw_port.h" 60 #include "firewire.h" 61 #include "firewirereg.h" 62 #include "fwmem.h" 63 #include "iec13213.h" 64 #include "iec68113.h" 65 #else 66 #include <dev/firewire/fw_port.h> 67 #include <dev/firewire/firewire.h> 68 #include <dev/firewire/firewirereg.h> 69 #include <dev/firewire/fwmem.h> 70 #include <dev/firewire/iec13213.h> 71 #include <dev/firewire/iec68113.h> 72 #endif 73 #elif defined(__NetBSD__) 74 #include <sys/param.h> 75 #include <sys/device.h> 76 #include <sys/errno.h> 77 #include <sys/conf.h> 78 #include <sys/kernel.h> 79 #include <sys/kthread.h> 80 #include <sys/malloc.h> 81 #include <sys/queue.h> 82 #include <sys/sysctl.h> 83 #include <sys/systm.h> 84 85 #include <machine/bus.h> 86 87 #include <dev/ieee1394/fw_port.h> 88 #include <dev/ieee1394/firewire.h> 89 #include <dev/ieee1394/firewirereg.h> 90 #include <dev/ieee1394/fwmem.h> 91 #include <dev/ieee1394/iec13213.h> 92 #include <dev/ieee1394/iec68113.h> 93 94 #include "locators.h" 95 #endif 96 97 struct crom_src_buf { 98 struct crom_src src; 99 struct crom_chunk root; 100 struct crom_chunk vendor; 101 struct crom_chunk hw; 102 }; 103 104 int firewire_debug=0, try_bmr=1, hold_count=3; 105 #if defined(__FreeBSD__) 106 SYSCTL_INT(_debug, OID_AUTO, firewire_debug, CTLFLAG_RW, &firewire_debug, 0, 107 "FireWire driver debug flag"); 108 SYSCTL_NODE(_hw, OID_AUTO, firewire, CTLFLAG_RD, 0, "FireWire Subsystem"); 109 SYSCTL_INT(_hw_firewire, OID_AUTO, try_bmr, CTLFLAG_RW, &try_bmr, 0, 110 "Try to be a bus manager"); 111 SYSCTL_INT(_hw_firewire, OID_AUTO, hold_count, CTLFLAG_RW, &hold_count, 0, 112 "Number of count of bus resets for removing lost device information"); 113 114 MALLOC_DEFINE(M_FW, "firewire", "FireWire"); 115 MALLOC_DEFINE(M_FWXFER, "fw_xfer", "XFER/FireWire"); 116 #elif defined(__NetBSD__) 117 /* 118 * Setup sysctl(3) MIB, hw.ieee1394if.* 119 * 120 * TBD condition CTLFLAG_PERMANENT on being an LKM or not 121 */ 122 SYSCTL_SETUP(sysctl_ieee1394if, "sysctl ieee1394if(4) subtree setup") 123 { 124 int rc, ieee1394if_node_num; 125 const struct sysctlnode *node; 126 127 if ((rc = sysctl_createv(clog, 0, NULL, NULL, 128 CTLFLAG_PERMANENT, CTLTYPE_NODE, "hw", NULL, 129 NULL, 0, NULL, 0, CTL_HW, CTL_EOL)) != 0) { 130 goto err; 131 } 132 133 if ((rc = sysctl_createv(clog, 0, NULL, &node, 134 CTLFLAG_PERMANENT, CTLTYPE_NODE, "ieee1394if", 135 SYSCTL_DESCR("ieee1394if controls"), 136 NULL, 0, NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL)) != 0) { 137 goto err; 138 } 139 ieee1394if_node_num = node->sysctl_num; 140 141 /* ieee1394if try bus manager flag */ 142 if ((rc = sysctl_createv(clog, 0, NULL, &node, 143 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, 144 "try_bmr", SYSCTL_DESCR("Try to be a bus manager"), 145 NULL, 0, &try_bmr, 146 0, CTL_HW, ieee1394if_node_num, CTL_CREATE, CTL_EOL)) != 0) { 147 goto err; 148 } 149 150 /* ieee1394if hold count */ 151 if ((rc = sysctl_createv(clog, 0, NULL, &node, 152 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, 153 "hold_count", SYSCTL_DESCR("Number of count of " 154 "bus resets for removing lost device information"), 155 NULL, 0, &hold_count, 156 0, CTL_HW, ieee1394if_node_num, CTL_CREATE, CTL_EOL)) != 0) { 157 goto err; 158 } 159 160 /* ieee1394if driver debug flag */ 161 if ((rc = sysctl_createv(clog, 0, NULL, &node, 162 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, 163 "ieee1394_debug", SYSCTL_DESCR("ieee1394if driver debug flag"), 164 NULL, 0, &firewire_debug, 165 0, CTL_HW, ieee1394if_node_num, CTL_CREATE, CTL_EOL)) != 0) { 166 goto err; 167 } 168 169 return; 170 171 err: 172 printf("%s: sysctl_createv failed (rc = %d)\n", __func__, rc); 173 } 174 175 MALLOC_DEFINE(M_FW, "ieee1394", "IEEE1394"); 176 MALLOC_DEFINE(M_FWXFER, "fw_xfer", "XFER/IEEE1394"); 177 #endif 178 179 #define FW_MAXASYRTY 4 180 181 #if defined(__FreeBSD__) 182 devclass_t firewire_devclass; 183 184 static void firewire_identify (driver_t *, device_t); 185 static int firewire_probe (device_t); 186 static int firewire_attach (device_t); 187 static int firewire_detach (device_t); 188 static int firewire_resume (device_t); 189 #if 0 190 static int firewire_shutdown (device_t); 191 #endif 192 static device_t firewire_add_child (device_t, int, const char *, int); 193 #elif defined(__NetBSD__) 194 int firewirematch (struct device *, struct cfdata *, void *); 195 void firewireattach (struct device *, struct device *, void *); 196 int firewiredetach (struct device *, int); 197 int firewire_print (void *, const char *); 198 #endif 199 static void fw_try_bmr (void *); 200 static void fw_try_bmr_callback (struct fw_xfer *); 201 static void fw_asystart (struct fw_xfer *); 202 static int fw_get_tlabel (struct firewire_comm *, struct fw_xfer *); 203 static void fw_bus_probe (struct firewire_comm *); 204 static void fw_kthread_create0 (void *); 205 static void fw_attach_dev (struct firewire_comm *); 206 static void fw_bus_probe_thread(void *); 207 #ifdef FW_VMACCESS 208 static void fw_vmaccess (struct fw_xfer *); 209 #endif 210 static int fw_bmr (struct firewire_comm *); 211 212 #if defined(__FreeBSD__) 213 static device_method_t firewire_methods[] = { 214 /* Device interface */ 215 DEVMETHOD(device_identify, firewire_identify), 216 DEVMETHOD(device_probe, firewire_probe), 217 DEVMETHOD(device_attach, firewire_attach), 218 DEVMETHOD(device_detach, firewire_detach), 219 DEVMETHOD(device_suspend, bus_generic_suspend), 220 DEVMETHOD(device_resume, firewire_resume), 221 DEVMETHOD(device_shutdown, bus_generic_shutdown), 222 223 /* Bus interface */ 224 DEVMETHOD(bus_add_child, firewire_add_child), 225 DEVMETHOD(bus_print_child, bus_generic_print_child), 226 227 { 0, 0 } 228 }; 229 #elif defined(__NetBSD__) 230 CFATTACH_DECL(ieee1394if, sizeof (struct firewire_softc), 231 firewirematch, firewireattach, firewiredetach, NULL); 232 #endif 233 const char *fw_linkspeed[] = { 234 "S100", "S200", "S400", "S800", 235 "S1600", "S3200", "undef", "undef" 236 }; 237 238 static const char *tcode_str[] = { 239 "WREQQ", "WREQB", "WRES", "undef", 240 "RREQQ", "RREQB", "RRESQ", "RRESB", 241 "CYCS", "LREQ", "STREAM", "LRES", 242 "undef", "undef", "PHY", "undef" 243 }; 244 245 /* IEEE-1394a Table C-2 Gap count as a function of hops*/ 246 #define MAX_GAPHOP 15 247 u_int gap_cnt[] = { 5, 5, 7, 8, 10, 13, 16, 18, 248 21, 24, 26, 29, 32, 35, 37, 40}; 249 250 #if defined(__FreeBSD__) 251 static driver_t firewire_driver = { 252 "firewire", 253 firewire_methods, 254 sizeof(struct firewire_softc), 255 }; 256 #endif 257 258 /* 259 * Lookup fwdev by node id. 260 */ 261 struct fw_device * 262 fw_noderesolve_nodeid(struct firewire_comm *fc, int dst) 263 { 264 struct fw_device *fwdev; 265 int s; 266 267 s = splfw(); 268 STAILQ_FOREACH(fwdev, &fc->devices, link) 269 if (fwdev->dst == dst && fwdev->status != FWDEVINVAL) 270 break; 271 splx(s); 272 273 return fwdev; 274 } 275 276 /* 277 * Lookup fwdev by EUI64. 278 */ 279 struct fw_device * 280 fw_noderesolve_eui64(struct firewire_comm *fc, struct fw_eui64 *eui) 281 { 282 struct fw_device *fwdev; 283 int s; 284 285 s = splfw(); 286 STAILQ_FOREACH(fwdev, &fc->devices, link) 287 if (FW_EUI64_EQUAL(fwdev->eui, *eui)) 288 break; 289 splx(s); 290 291 if(fwdev == NULL) return NULL; 292 if(fwdev->status == FWDEVINVAL) return NULL; 293 return fwdev; 294 } 295 296 /* 297 * Async. request procedure for userland application. 298 */ 299 int 300 fw_asyreq(struct firewire_comm *fc, int sub, struct fw_xfer *xfer) 301 { 302 int err = 0; 303 struct fw_xferq *xferq; 304 int tl = -1, len; 305 struct fw_pkt *fp; 306 int tcode; 307 const struct tcode_info *info; 308 309 if(xfer == NULL) return EINVAL; 310 if(xfer->hand == NULL){ 311 printf("hand == NULL\n"); 312 return EINVAL; 313 } 314 fp = &xfer->send.hdr; 315 316 tcode = fp->mode.common.tcode & 0xf; 317 info = &fc->tcode[tcode]; 318 if (info->flag == 0) { 319 printf("invalid tcode=%x\n", tcode); 320 return EINVAL; 321 } 322 if (info->flag & FWTI_REQ) 323 xferq = fc->atq; 324 else 325 xferq = fc->ats; 326 len = info->hdr_len; 327 if (xfer->send.pay_len > MAXREC(fc->maxrec)) { 328 printf("send.pay_len > maxrec\n"); 329 return EINVAL; 330 } 331 if (info->flag & FWTI_BLOCK_STR) 332 len = fp->mode.stream.len; 333 else if (info->flag & FWTI_BLOCK_ASY) 334 len = fp->mode.rresb.len; 335 else 336 len = 0; 337 if (len != xfer->send.pay_len){ 338 printf("len(%d) != send.pay_len(%d) %s(%x)\n", 339 len, xfer->send.pay_len, tcode_str[tcode], tcode); 340 return EINVAL; 341 } 342 343 if(xferq->start == NULL){ 344 printf("xferq->start == NULL\n"); 345 return EINVAL; 346 } 347 if(!(xferq->queued < xferq->maxq)){ 348 device_printf(fc->bdev, "Discard a packet (queued=%d)\n", 349 xferq->queued); 350 return EINVAL; 351 } 352 353 if (info->flag & FWTI_TLABEL) { 354 if ((tl = fw_get_tlabel(fc, xfer)) == -1) 355 return EAGAIN; 356 fp->mode.hdr.tlrt = tl << 2; 357 } 358 359 xfer->tl = tl; 360 xfer->resp = 0; 361 xfer->fc = fc; 362 xfer->q = xferq; 363 364 fw_asystart(xfer); 365 return err; 366 } 367 /* 368 * Wakeup blocked process. 369 */ 370 void 371 fw_asy_callback(struct fw_xfer *xfer){ 372 wakeup(xfer); 373 return; 374 } 375 376 /* 377 * Async. request with given xfer structure. 378 */ 379 static void 380 fw_asystart(struct fw_xfer *xfer) 381 { 382 struct firewire_comm *fc = xfer->fc; 383 int s; 384 #if 0 /* XXX allow bus explore packets only after bus rest */ 385 if (fc->status < FWBUSEXPLORE) { 386 xfer->resp = EAGAIN; 387 xfer->state = FWXF_BUSY; 388 if (xfer->hand != NULL) 389 xfer->hand(xfer); 390 return; 391 } 392 #endif 393 microtime(&xfer->tv); 394 s = splfw(); 395 xfer->state = FWXF_INQ; 396 STAILQ_INSERT_TAIL(&xfer->q->q, xfer, link); 397 xfer->q->queued ++; 398 splx(s); 399 /* XXX just queue for mbuf */ 400 if (xfer->mbuf == NULL) 401 xfer->q->start(fc); 402 return; 403 } 404 405 #if defined(__FreeBSD__) 406 static void 407 firewire_identify(driver_t *driver, device_t parent) 408 { 409 BUS_ADD_CHILD(parent, 0, "firewire", -1); 410 } 411 412 static int 413 firewire_probe(device_t dev) 414 { 415 device_set_desc(dev, "IEEE1394(FireWire) bus"); 416 return (0); 417 } 418 #elif defined(__NetBSD__) 419 int 420 firewirematch(struct device *parent, struct cfdata *cf, 421 void *aux) 422 { 423 struct fwbus_attach_args *faa = (struct fwbus_attach_args *)aux; 424 425 if (strcmp(faa->name, "ieee1394if") == 0) 426 return (1); 427 return (0); 428 } 429 #endif 430 431 static void 432 firewire_xfer_timeout(struct firewire_comm *fc) 433 { 434 struct fw_xfer *xfer; 435 struct timeval tv; 436 struct timeval split_timeout; 437 int i, s; 438 439 split_timeout.tv_sec = 0; 440 split_timeout.tv_usec = 200 * 1000; /* 200 msec */ 441 442 microtime(&tv); 443 timevalsub(&tv, &split_timeout); 444 445 s = splfw(); 446 for (i = 0; i < 0x40; i ++) { 447 while ((xfer = STAILQ_FIRST(&fc->tlabels[i])) != NULL) { 448 if (timevalcmp(&xfer->tv, &tv, >)) 449 /* the rests are newer than this */ 450 break; 451 if (xfer->state == FWXF_START) 452 /* not sent yet */ 453 break; 454 device_printf(fc->bdev, 455 "split transaction timeout dst=0x%x tl=0x%x state=%d\n", 456 xfer->send.hdr.mode.hdr.dst, i, xfer->state); 457 xfer->resp = ETIMEDOUT; 458 fw_xfer_done(xfer); 459 } 460 } 461 splx(s); 462 } 463 464 #define WATCHDOC_HZ 10 465 static void 466 firewire_watchdog(void *arg) 467 { 468 struct firewire_comm *fc; 469 static int watchdoc_clock = 0; 470 471 fc = (struct firewire_comm *)arg; 472 473 /* 474 * At boot stage, the device interrupt is disabled and 475 * We encounter a timeout easily. To avoid this, 476 * ignore clock interrupt for a while. 477 */ 478 if (watchdoc_clock > WATCHDOC_HZ * 15) { 479 firewire_xfer_timeout(fc); 480 fc->timeout(fc); 481 } else 482 watchdoc_clock ++; 483 484 callout_reset(&fc->timeout_callout, hz / WATCHDOC_HZ, 485 (void *)firewire_watchdog, (void *)fc); 486 } 487 488 /* 489 * The attach routine. 490 */ 491 FW_ATTACH(firewire) 492 { 493 FW_ATTACH_START(firewire, sc, fwa); 494 FIREWIRE_ATTACH_START; 495 496 sc->fc = fc; 497 fc->status = FWBUSNOTREADY; 498 499 if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA; 500 501 FWDEV_MAKEDEV(sc); 502 503 CALLOUT_INIT(&sc->fc->timeout_callout); 504 CALLOUT_INIT(&sc->fc->bmr_callout); 505 CALLOUT_INIT(&sc->fc->busprobe_callout); 506 507 callout_reset(&sc->fc->timeout_callout, hz, 508 (void *)firewire_watchdog, (void *)sc->fc); 509 510 fw_kthread_create(fw_kthread_create0, fc); 511 512 FIREWIRE_GENERIC_ATTACH; 513 514 /* bus_reset */ 515 fw_busreset(fc); 516 fc->ibr(fc); 517 518 FW_ATTACH_RETURN(0); 519 } 520 521 #if defined(__FreeBSD__) 522 /* 523 * Attach it as child. 524 */ 525 static device_t 526 firewire_add_child(device_t dev, int order, const char *name, int unit) 527 { 528 device_t child; 529 struct firewire_softc *sc; 530 struct fw_attach_args fwa; 531 532 sc = (struct firewire_softc *)device_get_softc(dev); 533 child = device_add_child(dev, name, unit); 534 if (child) { 535 fwa.name = name; 536 fwa.fc = sc->fc; 537 fwa.fwdev = NULL; 538 device_set_ivars(child, &fwa); 539 device_probe_and_attach(child); 540 } 541 542 return child; 543 } 544 545 static int 546 firewire_resume(device_t dev) 547 { 548 struct firewire_softc *sc; 549 550 sc = (struct firewire_softc *)device_get_softc(dev); 551 sc->fc->status = FWBUSNOTREADY; 552 553 bus_generic_resume(dev); 554 555 return(0); 556 } 557 #endif 558 559 /* 560 * Dettach it. 561 */ 562 FW_DETACH(firewire) 563 { 564 FW_DETACH_START(firewire, sc); 565 struct firewire_comm *fc; 566 struct fw_device *fwdev, *fwdev_next; 567 568 fc = sc->fc; 569 fc->status = FWBUSDETACH; 570 571 FWDEV_DESTROYDEV(sc); 572 FIREWIRE_GENERIC_DETACH; 573 574 callout_stop(&fc->timeout_callout); 575 callout_stop(&fc->bmr_callout); 576 callout_stop(&fc->busprobe_callout); 577 578 /* XXX xfree_free and untimeout on all xfers */ 579 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; 580 fwdev = fwdev_next) { 581 fwdev_next = STAILQ_NEXT(fwdev, link); 582 free(fwdev, M_FW); 583 } 584 free(fc->topology_map, M_FW); 585 free(fc->speed_map, M_FW); 586 free(fc->crom_src_buf, M_FW); 587 588 wakeup(fc); 589 if (tsleep(fc, PWAIT, "fwthr", hz * 60)) 590 printf("firewire task thread didn't die\n"); 591 592 return(0); 593 } 594 #if defined(__FreeBSD__) 595 #if 0 596 static int 597 firewire_shutdown( device_t dev ) 598 { 599 return 0; 600 } 601 #endif 602 #elif defined(__NetBSD__) 603 int 604 firewire_print(void *aux, const char *pnp) 605 { 606 struct fw_attach_args *fwa = (struct fw_attach_args *)aux; 607 608 if (pnp) 609 aprint_normal("%s at %s", fwa->name, pnp); 610 611 return UNCONF; 612 } 613 #endif 614 615 static void 616 fw_xferq_drain(struct fw_xferq *xferq) 617 { 618 struct fw_xfer *xfer; 619 620 while ((xfer = STAILQ_FIRST(&xferq->q)) != NULL) { 621 STAILQ_REMOVE_HEAD(&xferq->q, link); 622 xferq->queued --; 623 xfer->resp = EAGAIN; 624 xfer->state = FWXF_SENTERR; 625 fw_xfer_done(xfer); 626 } 627 } 628 629 void 630 fw_drain_txq(struct firewire_comm *fc) 631 { 632 int i; 633 634 fw_xferq_drain(fc->atq); 635 fw_xferq_drain(fc->ats); 636 for(i = 0; i < fc->nisodma; i++) 637 fw_xferq_drain(fc->it[i]); 638 } 639 640 static void 641 fw_reset_csr(struct firewire_comm *fc) 642 { 643 int i; 644 645 CSRARC(fc, STATE_CLEAR) 646 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 647 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 648 CSRARC(fc, NODE_IDS) = 0x3f; 649 650 CSRARC(fc, TOPO_MAP + 8) = 0; 651 fc->irm = -1; 652 653 fc->max_node = -1; 654 655 for(i = 2; i < 0x100/4 - 2 ; i++){ 656 CSRARC(fc, SPED_MAP + i * 4) = 0; 657 } 658 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 659 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 660 CSRARC(fc, RESET_START) = 0; 661 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0; 662 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19; 663 CSRARC(fc, CYCLE_TIME) = 0x0; 664 CSRARC(fc, BUS_TIME) = 0x0; 665 CSRARC(fc, BUS_MGR_ID) = 0x3f; 666 CSRARC(fc, BANDWIDTH_AV) = 4915; 667 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff; 668 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff; 669 CSRARC(fc, IP_CHANNELS) = (1 << 31); 670 671 CSRARC(fc, CONF_ROM) = 0x04 << 24; 672 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */ 673 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 | 674 1 << 28 | 0xff << 16 | 0x09 << 8; 675 CSRARC(fc, CONF_ROM + 0xc) = 0; 676 677 /* DV depend CSRs see blue book */ 678 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON; 679 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON; 680 681 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 ); 682 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 683 } 684 685 static void 686 fw_init_crom(struct firewire_comm *fc) 687 { 688 struct crom_src *src; 689 690 fc->crom_src_buf = (struct crom_src_buf *) 691 malloc(sizeof(struct crom_src_buf), M_FW, M_WAITOK | M_ZERO); 692 if (fc->crom_src_buf == NULL) 693 return; 694 695 src = &fc->crom_src_buf->src; 696 bzero(src, sizeof(struct crom_src)); 697 698 /* BUS info sample */ 699 src->hdr.info_len = 4; 700 701 src->businfo.bus_name = CSR_BUS_NAME_IEEE1394; 702 703 src->businfo.irmc = 1; 704 src->businfo.cmc = 1; 705 src->businfo.isc = 1; 706 src->businfo.bmc = 1; 707 src->businfo.pmc = 0; 708 src->businfo.cyc_clk_acc = 100; 709 src->businfo.max_rec = fc->maxrec; 710 src->businfo.max_rom = MAXROM_4; 711 src->businfo.generation = 1; 712 src->businfo.link_spd = fc->speed; 713 714 src->businfo.eui64.hi = fc->eui.hi; 715 src->businfo.eui64.lo = fc->eui.lo; 716 717 STAILQ_INIT(&src->chunk_list); 718 719 fc->crom_src = src; 720 fc->crom_root = &fc->crom_src_buf->root; 721 } 722 723 static void 724 fw_reset_crom(struct firewire_comm *fc) 725 { 726 struct crom_src_buf *buf; 727 struct crom_src *src; 728 struct crom_chunk *root; 729 730 if (fc->crom_src_buf == NULL) 731 fw_init_crom(fc); 732 733 buf = fc->crom_src_buf; 734 src = fc->crom_src; 735 root = fc->crom_root; 736 737 STAILQ_INIT(&src->chunk_list); 738 739 bzero(root, sizeof(struct crom_chunk)); 740 crom_add_chunk(src, NULL, root, 0); 741 crom_add_entry(root, CSRKEY_NCAP, 0x0083c0); /* XXX */ 742 /* private company_id */ 743 crom_add_entry(root, CSRKEY_VENDOR, CSRVAL_VENDOR_PRIVATE); 744 crom_add_simple_text(src, root, &buf->vendor, PROJECT_STR); 745 crom_add_entry(root, CSRKEY_HW, OS_VER); 746 crom_add_simple_text(src, root, &buf->hw, hostname); 747 } 748 749 /* 750 * Called after bus reset. 751 */ 752 void 753 fw_busreset(struct firewire_comm *fc) 754 { 755 struct firewire_dev_comm *fdc; 756 struct crom_src *src; 757 void *newrom; 758 759 switch(fc->status){ 760 case FWBUSMGRELECT: 761 callout_stop(&fc->bmr_callout); 762 break; 763 default: 764 break; 765 } 766 fc->status = FWBUSRESET; 767 fw_reset_csr(fc); 768 fw_reset_crom(fc); 769 770 FIREWIRE_CHILDREN_FOREACH_FUNC(post_busreset, fdc); 771 772 newrom = malloc(CROMSIZE, M_FW, M_NOWAIT | M_ZERO); 773 src = &fc->crom_src_buf->src; 774 crom_load(src, (uint32_t *)newrom, CROMSIZE); 775 if (bcmp(newrom, fc->config_rom, CROMSIZE) != 0) { 776 /* bump generation and reload */ 777 src->businfo.generation ++; 778 /* generation must be between 0x2 and 0xF */ 779 if (src->businfo.generation < 2) 780 src->businfo.generation ++; 781 crom_load(src, (uint32_t *)newrom, CROMSIZE); 782 bcopy(newrom, (void *)fc->config_rom, CROMSIZE); 783 } 784 free(newrom, M_FW); 785 } 786 787 /* Call once after reboot */ 788 void fw_init(struct firewire_comm *fc) 789 { 790 int i; 791 #ifdef FW_VMACCESS 792 struct fw_xfer *xfer; 793 struct fw_bind *fwb; 794 #endif 795 796 fc->arq->queued = 0; 797 fc->ars->queued = 0; 798 fc->atq->queued = 0; 799 fc->ats->queued = 0; 800 801 fc->arq->buf = NULL; 802 fc->ars->buf = NULL; 803 fc->atq->buf = NULL; 804 fc->ats->buf = NULL; 805 806 fc->arq->flag = 0; 807 fc->ars->flag = 0; 808 fc->atq->flag = 0; 809 fc->ats->flag = 0; 810 811 STAILQ_INIT(&fc->atq->q); 812 STAILQ_INIT(&fc->ats->q); 813 814 for( i = 0 ; i < fc->nisodma ; i ++ ){ 815 fc->it[i]->queued = 0; 816 fc->ir[i]->queued = 0; 817 818 fc->it[i]->start = NULL; 819 fc->ir[i]->start = NULL; 820 821 fc->it[i]->buf = NULL; 822 fc->ir[i]->buf = NULL; 823 824 fc->it[i]->flag = FWXFERQ_STREAM; 825 fc->ir[i]->flag = FWXFERQ_STREAM; 826 827 STAILQ_INIT(&fc->it[i]->q); 828 STAILQ_INIT(&fc->ir[i]->q); 829 } 830 831 fc->arq->maxq = FWMAXQUEUE; 832 fc->ars->maxq = FWMAXQUEUE; 833 fc->atq->maxq = FWMAXQUEUE; 834 fc->ats->maxq = FWMAXQUEUE; 835 836 for( i = 0 ; i < fc->nisodma ; i++){ 837 fc->ir[i]->maxq = FWMAXQUEUE; 838 fc->it[i]->maxq = FWMAXQUEUE; 839 } 840 /* Initialize csr registers */ 841 fc->topology_map = (struct fw_topology_map *)malloc( 842 sizeof(struct fw_topology_map), 843 M_FW, M_NOWAIT | M_ZERO); 844 fc->speed_map = (struct fw_speed_map *)malloc( 845 sizeof(struct fw_speed_map), 846 M_FW, M_NOWAIT | M_ZERO); 847 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16; 848 CSRARC(fc, TOPO_MAP + 4) = 1; 849 CSRARC(fc, SPED_MAP) = 0x3f1 << 16; 850 CSRARC(fc, SPED_MAP + 4) = 1; 851 852 STAILQ_INIT(&fc->devices); 853 854 /* Initialize Async handlers */ 855 STAILQ_INIT(&fc->binds); 856 for( i = 0 ; i < 0x40 ; i++){ 857 STAILQ_INIT(&fc->tlabels[i]); 858 } 859 860 /* DV depend CSRs see blue book */ 861 #if 0 862 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */ 863 CSRARC(fc, oPCR) = 0x8000007a; 864 for(i = 4 ; i < 0x7c/4 ; i+=4){ 865 CSRARC(fc, i + oPCR) = 0x8000007a; 866 } 867 868 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */ 869 CSRARC(fc, iPCR) = 0x803f0000; 870 for(i = 4 ; i < 0x7c/4 ; i+=4){ 871 CSRARC(fc, i + iPCR) = 0x0; 872 } 873 #endif 874 875 fc->crom_src_buf = NULL; 876 877 #ifdef FW_VMACCESS 878 xfer = fw_xfer_alloc(); 879 if(xfer == NULL) return; 880 881 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_FW, M_NOWAIT); 882 if(fwb == NULL){ 883 fw_xfer_free(xfer); 884 return; 885 } 886 xfer->hand = fw_vmaccess; 887 xfer->fc = fc; 888 xfer->sc = NULL; 889 890 fwb->start_hi = 0x2; 891 fwb->start_lo = 0; 892 fwb->addrlen = 0xffffffff; 893 fwb->xfer = xfer; 894 fw_bindadd(fc, fwb); 895 #endif 896 } 897 898 #define BIND_CMP(addr, fwb) (((addr) < (fwb)->start)?-1:\ 899 ((fwb)->end < (addr))?1:0) 900 901 /* 902 * To lookup bound process from IEEE1394 address. 903 */ 904 struct fw_bind * 905 fw_bindlookup(struct firewire_comm *fc, uint16_t dest_hi, uint32_t dest_lo) 906 { 907 u_int64_t addr; 908 struct fw_bind *tfw; 909 910 addr = ((u_int64_t)dest_hi << 32) | dest_lo; 911 STAILQ_FOREACH(tfw, &fc->binds, fclist) 912 if (BIND_CMP(addr, tfw) == 0) 913 return(tfw); 914 return(NULL); 915 } 916 917 /* 918 * To bind IEEE1394 address block to process. 919 */ 920 int 921 fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb) 922 { 923 struct fw_bind *tfw, *prev = NULL; 924 925 if (fwb->start > fwb->end) { 926 printf("%s: invalid range\n", __func__); 927 return EINVAL; 928 } 929 930 STAILQ_FOREACH(tfw, &fc->binds, fclist) { 931 if (fwb->end < tfw->start) 932 break; 933 prev = tfw; 934 } 935 if (prev == NULL) { 936 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 937 return (0); 938 } 939 if (prev->end < fwb->start) { 940 STAILQ_INSERT_AFTER(&fc->binds, prev, fwb, fclist); 941 return (0); 942 } 943 944 printf("%s: bind failed\n", __func__); 945 return (EBUSY); 946 } 947 948 /* 949 * To free IEEE1394 address block. 950 */ 951 int 952 fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb) 953 { 954 #if 0 955 struct fw_xfer *xfer, *next; 956 #endif 957 struct fw_bind *tfw; 958 int s; 959 960 s = splfw(); 961 STAILQ_FOREACH(tfw, &fc->binds, fclist) 962 if (tfw == fwb) { 963 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist); 964 goto found; 965 } 966 967 printf("%s: no such binding\n", __func__); 968 splx(s); 969 return (1); 970 found: 971 #if 0 972 /* shall we do this? */ 973 for (xfer = STAILQ_FIRST(&fwb->xferlist); xfer != NULL; xfer = next) { 974 next = STAILQ_NEXT(xfer, link); 975 fw_xfer_free(xfer); 976 } 977 STAILQ_INIT(&fwb->xferlist); 978 #endif 979 980 splx(s); 981 return 0; 982 } 983 984 int 985 fw_xferlist_add(struct fw_xferlist *q, struct malloc_type *type, 986 int slen, int rlen, int n, 987 struct firewire_comm *fc, void *sc, void (*hand)(struct fw_xfer *)) 988 { 989 int i, s; 990 struct fw_xfer *xfer; 991 992 for (i = 0; i < n; i++) { 993 xfer = fw_xfer_alloc_buf(type, slen, rlen); 994 if (xfer == NULL) 995 return (n); 996 xfer->fc = fc; 997 xfer->sc = sc; 998 xfer->hand = hand; 999 s = splfw(); 1000 STAILQ_INSERT_TAIL(q, xfer, link); 1001 splx(s); 1002 } 1003 return (n); 1004 } 1005 1006 void 1007 fw_xferlist_remove(struct fw_xferlist *q) 1008 { 1009 struct fw_xfer *xfer, *next; 1010 1011 for (xfer = STAILQ_FIRST(q); xfer != NULL; xfer = next) { 1012 next = STAILQ_NEXT(xfer, link); 1013 fw_xfer_free_buf(xfer); 1014 } 1015 STAILQ_INIT(q); 1016 } 1017 1018 /* 1019 * To free transaction label. 1020 */ 1021 static void 1022 fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer) 1023 { 1024 struct fw_xfer *txfer; 1025 int s; 1026 1027 if (xfer->tl < 0) 1028 return; 1029 1030 s = splfw(); 1031 #if 1 /* make sure the label is allocated */ 1032 STAILQ_FOREACH(txfer, &fc->tlabels[xfer->tl], tlabel) 1033 if(txfer == xfer) 1034 break; 1035 if (txfer == NULL) { 1036 printf("%s: the xfer is not in the tlabel(%d)\n", 1037 __FUNCTION__, xfer->tl); 1038 splx(s); 1039 return; 1040 } 1041 #endif 1042 1043 STAILQ_REMOVE(&fc->tlabels[xfer->tl], xfer, fw_xfer, tlabel); 1044 splx(s); 1045 return; 1046 } 1047 1048 /* 1049 * To obtain XFER structure by transaction label. 1050 */ 1051 static struct fw_xfer * 1052 fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel) 1053 { 1054 struct fw_xfer *xfer; 1055 int s = splfw(); 1056 1057 STAILQ_FOREACH(xfer, &fc->tlabels[tlabel], tlabel) 1058 if(xfer->send.hdr.mode.hdr.dst == node) { 1059 splx(s); 1060 if (firewire_debug > 2) 1061 printf("fw_tl2xfer: found tl=%d\n", tlabel); 1062 return(xfer); 1063 } 1064 if (firewire_debug > 1) 1065 printf("fw_tl2xfer: not found tl=%d\n", tlabel); 1066 splx(s); 1067 return(NULL); 1068 } 1069 1070 /* 1071 * To allocate IEEE1394 XFER structure. 1072 */ 1073 struct fw_xfer * 1074 fw_xfer_alloc(struct malloc_type *type) 1075 { 1076 struct fw_xfer *xfer; 1077 1078 xfer = malloc(sizeof(struct fw_xfer), type, M_NOWAIT | M_ZERO); 1079 if (xfer == NULL) 1080 return xfer; 1081 1082 xfer->malloc = type; 1083 1084 return xfer; 1085 } 1086 1087 struct fw_xfer * 1088 fw_xfer_alloc_buf(struct malloc_type *type, int send_len, int recv_len) 1089 { 1090 struct fw_xfer *xfer; 1091 1092 xfer = fw_xfer_alloc(type); 1093 if (xfer == NULL) 1094 return(NULL); 1095 xfer->send.pay_len = send_len; 1096 xfer->recv.pay_len = recv_len; 1097 if (send_len > 0) { 1098 xfer->send.payload = malloc(send_len, type, M_NOWAIT | M_ZERO); 1099 if (xfer->send.payload == NULL) { 1100 fw_xfer_free(xfer); 1101 return(NULL); 1102 } 1103 } 1104 if (recv_len > 0) { 1105 xfer->recv.payload = malloc(recv_len, type, M_NOWAIT); 1106 if (xfer->recv.payload == NULL) { 1107 if (xfer->send.payload != NULL) 1108 free(xfer->send.payload, type); 1109 fw_xfer_free(xfer); 1110 return(NULL); 1111 } 1112 } 1113 return(xfer); 1114 } 1115 1116 /* 1117 * IEEE1394 XFER post process. 1118 */ 1119 void 1120 fw_xfer_done(struct fw_xfer *xfer) 1121 { 1122 if (xfer->hand == NULL) { 1123 printf("hand == NULL\n"); 1124 return; 1125 } 1126 1127 if (xfer->fc == NULL) 1128 panic("fw_xfer_done: why xfer->fc is NULL?"); 1129 1130 fw_tl_free(xfer->fc, xfer); 1131 xfer->hand(xfer); 1132 } 1133 1134 void 1135 fw_xfer_unload(struct fw_xfer* xfer) 1136 { 1137 int s; 1138 1139 if(xfer == NULL ) return; 1140 if(xfer->state == FWXF_INQ){ 1141 printf("fw_xfer_free FWXF_INQ\n"); 1142 s = splfw(); 1143 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link); 1144 xfer->q->queued --; 1145 splx(s); 1146 } 1147 if (xfer->fc != NULL) { 1148 #if 1 1149 if(xfer->state == FWXF_START) 1150 /* 1151 * This could happen if: 1152 * 1. We call fwohci_arcv() before fwohci_txd(). 1153 * 2. firewire_watch() is called. 1154 */ 1155 printf("fw_xfer_free FWXF_START\n"); 1156 #endif 1157 } 1158 xfer->state = FWXF_INIT; 1159 xfer->resp = 0; 1160 } 1161 /* 1162 * To free IEEE1394 XFER structure. 1163 */ 1164 void 1165 fw_xfer_free_buf( struct fw_xfer* xfer) 1166 { 1167 if (xfer == NULL) { 1168 printf("%s: xfer == NULL\n", __func__); 1169 return; 1170 } 1171 fw_xfer_unload(xfer); 1172 if(xfer->send.payload != NULL){ 1173 free(xfer->send.payload, xfer->malloc); 1174 } 1175 if(xfer->recv.payload != NULL){ 1176 free(xfer->recv.payload, xfer->malloc); 1177 } 1178 free(xfer, xfer->malloc); 1179 } 1180 1181 void 1182 fw_xfer_free( struct fw_xfer* xfer) 1183 { 1184 if (xfer == NULL) { 1185 printf("%s: xfer == NULL\n", __func__); 1186 return; 1187 } 1188 fw_xfer_unload(xfer); 1189 free(xfer, xfer->malloc); 1190 } 1191 1192 void 1193 fw_asy_callback_free(struct fw_xfer *xfer) 1194 { 1195 #if 0 1196 printf("asyreq done state=%d resp=%d\n", 1197 xfer->state, xfer->resp); 1198 #endif 1199 fw_xfer_free(xfer); 1200 } 1201 1202 /* 1203 * To configure PHY. 1204 */ 1205 static void 1206 fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count) 1207 { 1208 struct fw_xfer *xfer; 1209 struct fw_pkt *fp; 1210 1211 fc->status = FWBUSPHYCONF; 1212 1213 xfer = fw_xfer_alloc(M_FWXFER); 1214 if (xfer == NULL) 1215 return; 1216 xfer->fc = fc; 1217 xfer->hand = fw_asy_callback_free; 1218 1219 fp = &xfer->send.hdr; 1220 fp->mode.ld[1] = 0; 1221 if (root_node >= 0) 1222 fp->mode.ld[1] |= (root_node & 0x3f) << 24 | 1 << 23; 1223 if (gap_count >= 0) 1224 fp->mode.ld[1] |= 1 << 22 | (gap_count & 0x3f) << 16; 1225 fp->mode.ld[2] = ~fp->mode.ld[1]; 1226 /* XXX Dangerous, how to pass PHY packet to device driver */ 1227 fp->mode.common.tcode |= FWTCODE_PHY; 1228 1229 if (firewire_debug) 1230 printf("send phy_config root_node=%d gap_count=%d\n", 1231 root_node, gap_count); 1232 fw_asyreq(fc, -1, xfer); 1233 } 1234 1235 #if 0 1236 /* 1237 * Dump self ID. 1238 */ 1239 static void 1240 fw_print_sid(uint32_t sid) 1241 { 1242 union fw_self_id *s; 1243 s = (union fw_self_id *) &sid; 1244 printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d" 1245 " p0:%d p1:%d p2:%d i:%d m:%d\n", 1246 s->p0.phy_id, s->p0.link_active, s->p0.gap_count, 1247 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender, 1248 s->p0.power_class, s->p0.port0, s->p0.port1, 1249 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets); 1250 } 1251 #endif 1252 1253 /* 1254 * To receive self ID. 1255 */ 1256 void fw_sidrcv(struct firewire_comm* fc, uint32_t *sid, u_int len) 1257 { 1258 uint32_t *p; 1259 union fw_self_id *self_id; 1260 u_int i, j, node, c_port = 0, i_branch = 0; 1261 1262 fc->sid_cnt = len /(sizeof(uint32_t) * 2); 1263 fc->status = FWBUSINIT; 1264 fc->max_node = fc->nodeid & 0x3f; 1265 CSRARC(fc, NODE_IDS) = ((uint32_t)fc->nodeid) << 16; 1266 fc->status = FWBUSCYMELECT; 1267 fc->topology_map->crc_len = 2; 1268 fc->topology_map->generation ++; 1269 fc->topology_map->self_id_count = 0; 1270 fc->topology_map->node_count = 0; 1271 fc->speed_map->generation ++; 1272 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4; 1273 self_id = &fc->topology_map->self_id[0]; 1274 for(i = 0; i < fc->sid_cnt; i ++){ 1275 if (sid[1] != ~sid[0]) { 1276 printf("fw_sidrcv: invalid self-id packet\n"); 1277 sid += 2; 1278 continue; 1279 } 1280 *self_id = *((union fw_self_id *)sid); 1281 fc->topology_map->crc_len++; 1282 if(self_id->p0.sequel == 0){ 1283 fc->topology_map->node_count ++; 1284 c_port = 0; 1285 #if 0 1286 fw_print_sid(sid[0]); 1287 #endif 1288 node = self_id->p0.phy_id; 1289 if(fc->max_node < node){ 1290 fc->max_node = self_id->p0.phy_id; 1291 } 1292 /* XXX I'm not sure this is the right speed_map */ 1293 fc->speed_map->speed[node][node] 1294 = self_id->p0.phy_speed; 1295 for (j = 0; j < node; j ++) { 1296 fc->speed_map->speed[j][node] 1297 = fc->speed_map->speed[node][j] 1298 = min(fc->speed_map->speed[j][j], 1299 self_id->p0.phy_speed); 1300 } 1301 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) && 1302 (self_id->p0.link_active && self_id->p0.contender)) { 1303 fc->irm = self_id->p0.phy_id; 1304 } 1305 if(self_id->p0.port0 >= 0x2){ 1306 c_port++; 1307 } 1308 if(self_id->p0.port1 >= 0x2){ 1309 c_port++; 1310 } 1311 if(self_id->p0.port2 >= 0x2){ 1312 c_port++; 1313 } 1314 } 1315 if(c_port > 2){ 1316 i_branch += (c_port - 2); 1317 } 1318 sid += 2; 1319 self_id++; 1320 fc->topology_map->self_id_count ++; 1321 } 1322 device_printf(fc->bdev, "%d nodes", fc->max_node + 1); 1323 /* CRC */ 1324 fc->topology_map->crc = fw_crc16( 1325 (uint32_t *)&fc->topology_map->generation, 1326 fc->topology_map->crc_len * 4); 1327 fc->speed_map->crc = fw_crc16( 1328 (uint32_t *)&fc->speed_map->generation, 1329 fc->speed_map->crc_len * 4); 1330 /* byteswap and copy to CSR */ 1331 p = (uint32_t *)fc->topology_map; 1332 for (i = 0; i <= fc->topology_map->crc_len; i++) 1333 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++); 1334 p = (uint32_t *)fc->speed_map; 1335 CSRARC(fc, SPED_MAP) = htonl(*p++); 1336 CSRARC(fc, SPED_MAP + 4) = htonl(*p++); 1337 /* don't byte-swap uint8_t array */ 1338 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4); 1339 1340 fc->max_hop = fc->max_node - i_branch; 1341 printf(", maxhop <= %d", fc->max_hop); 1342 1343 if(fc->irm == -1 ){ 1344 printf(", Not found IRM capable node"); 1345 }else{ 1346 printf(", cable IRM = %d", fc->irm); 1347 if (fc->irm == fc->nodeid) 1348 printf(" (me)"); 1349 } 1350 printf("\n"); 1351 1352 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) { 1353 if (fc->irm == fc->nodeid) { 1354 fc->status = FWBUSMGRDONE; 1355 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm); 1356 fw_bmr(fc); 1357 } else { 1358 fc->status = FWBUSMGRELECT; 1359 callout_reset(&fc->bmr_callout, hz/8, 1360 (void *)fw_try_bmr, (void *)fc); 1361 } 1362 } else 1363 fc->status = FWBUSMGRDONE; 1364 1365 callout_reset(&fc->busprobe_callout, hz/4, 1366 (void *)fw_bus_probe, (void *)fc); 1367 } 1368 1369 /* 1370 * To probe devices on the IEEE1394 bus. 1371 */ 1372 static void 1373 fw_bus_probe(struct firewire_comm *fc) 1374 { 1375 int s; 1376 struct fw_device *fwdev; 1377 1378 s = splfw(); 1379 fc->status = FWBUSEXPLORE; 1380 1381 /* Invalidate all devices, just after bus reset. */ 1382 STAILQ_FOREACH(fwdev, &fc->devices, link) 1383 if (fwdev->status != FWDEVINVAL) { 1384 fwdev->status = FWDEVINVAL; 1385 fwdev->rcnt = 0; 1386 } 1387 splx(s); 1388 1389 wakeup((void *)fc); 1390 } 1391 1392 static int 1393 fw_explore_read_quads(struct fw_device *fwdev, int offset, 1394 uint32_t *quad, int n) 1395 { 1396 struct fw_xfer *xfer; 1397 uint32_t tmp; 1398 int i, error; 1399 1400 1401 for (i = 0; i < n; i ++, offset += sizeof(uint32_t)) { 1402 xfer = fwmem_read_quad(fwdev, NULL, -1, 1403 0xffff, 0xf0000000 | offset, (void *)&tmp, 1404 fw_asy_callback); 1405 if (xfer == NULL) 1406 return (-1); 1407 tsleep((void *)xfer, FWPRI, "rquad", 0); 1408 1409 if (xfer->resp == 0) 1410 quad[i] = ntohl(tmp); 1411 1412 error = xfer->resp; 1413 fw_xfer_free(xfer); 1414 if (error) 1415 return (error); 1416 } 1417 return (0); 1418 } 1419 1420 1421 static int 1422 fw_explore_csrblock(struct fw_device *fwdev, int offset, int recur) 1423 { 1424 int err, i, off; 1425 struct csrdirectory *dir; 1426 struct csrreg *reg; 1427 1428 1429 dir = (struct csrdirectory *)&fwdev->csrrom[offset/sizeof(uint32_t)]; 1430 err = fw_explore_read_quads(fwdev, CSRROMOFF + offset, 1431 (uint32_t *)dir, 1); 1432 if (err) 1433 return (-1); 1434 1435 offset += sizeof(uint32_t); 1436 reg = (struct csrreg *)&fwdev->csrrom[offset/sizeof(uint32_t)]; 1437 err = fw_explore_read_quads(fwdev, CSRROMOFF + offset, 1438 (uint32_t *)reg, dir->crc_len); 1439 if (err) 1440 return (-1); 1441 1442 /* XXX check CRC */ 1443 1444 off = CSRROMOFF + offset + sizeof(uint32_t) * (dir->crc_len - 1); 1445 if (fwdev->rommax < off) 1446 fwdev->rommax = off; 1447 1448 if (recur == 0) 1449 return (0); 1450 1451 for (i = 0; i < dir->crc_len; i ++, offset += sizeof(uint32_t)) { 1452 if (reg[i].key == CROM_UDIR) 1453 recur = 1; 1454 else if (reg[i].key == CROM_TEXTLEAF) 1455 recur = 0; 1456 else 1457 continue; 1458 1459 off = offset + reg[i].val * sizeof(uint32_t); 1460 if (off > CROMSIZE) { 1461 printf("%s: invalid offset %d\n", __FUNCTION__, off); 1462 return(-1); 1463 } 1464 err = fw_explore_csrblock(fwdev, off, recur); 1465 if (err) 1466 return (-1); 1467 } 1468 return (0); 1469 } 1470 1471 static void 1472 fw_kthread_create0(void *arg) 1473 { 1474 struct firewire_comm *fc = (struct firewire_comm *)arg; 1475 fw_thread *p; 1476 1477 config_pending_incr(); 1478 1479 /* create thread */ 1480 if (THREAD_CREATE(fw_bus_probe_thread, 1481 (void *)fc, &p, "fw%d_probe", device_get_unit(fc->bdev))) { 1482 1483 device_printf(fc->bdev, "unable to create thread"); 1484 panic("fw_kthread_create"); 1485 } 1486 } 1487 1488 static int 1489 fw_explore_node(struct fw_device *dfwdev) 1490 { 1491 struct firewire_comm *fc; 1492 struct fw_device *fwdev, *pfwdev, *tfwdev; 1493 uint32_t *csr; 1494 struct csrhdr *hdr; 1495 struct bus_info *binfo; 1496 int err, node, spd; 1497 1498 fc = dfwdev->fc; 1499 csr = dfwdev->csrrom; 1500 node = dfwdev->dst; 1501 1502 /* First quad */ 1503 err = fw_explore_read_quads(dfwdev, CSRROMOFF, &csr[0], 1); 1504 if (err) 1505 return (-1); 1506 hdr = (struct csrhdr *)&csr[0]; 1507 if (hdr->info_len != 4) { 1508 if (firewire_debug) 1509 printf("node%d: wrong bus info len(%d)\n", 1510 node, hdr->info_len); 1511 return (-1); 1512 } 1513 1514 /* bus info */ 1515 err = fw_explore_read_quads(dfwdev, CSRROMOFF + 0x04, &csr[1], 4); 1516 if (err) 1517 return (-1); 1518 binfo = (struct bus_info *)&csr[1]; 1519 if (binfo->bus_name != CSR_BUS_NAME_IEEE1394) { 1520 if (firewire_debug) 1521 printf("node%d: invalid bus name 0x%08x\n", 1522 node, binfo->bus_name); 1523 return (-1); 1524 } 1525 spd = fc->speed_map->speed[fc->nodeid][node]; 1526 STAILQ_FOREACH(fwdev, &fc->devices, link) 1527 if (FW_EUI64_EQUAL(fwdev->eui, binfo->eui64)) 1528 break; 1529 if (fwdev == NULL) { 1530 /* new device */ 1531 fwdev = malloc(sizeof(struct fw_device), M_FW, 1532 M_NOWAIT | M_ZERO); 1533 if (fwdev == NULL) { 1534 if (firewire_debug) 1535 printf("node%d: no memory\n", node); 1536 return (-1); 1537 } 1538 fwdev->fc = fc; 1539 fwdev->eui = binfo->eui64; 1540 fwdev->status = FWDEVNEW; 1541 /* insert into sorted fwdev list */ 1542 pfwdev = NULL; 1543 STAILQ_FOREACH(tfwdev, &fc->devices, link) { 1544 if (tfwdev->eui.hi > fwdev->eui.hi || 1545 (tfwdev->eui.hi == fwdev->eui.hi && 1546 tfwdev->eui.lo > fwdev->eui.lo)) 1547 break; 1548 pfwdev = tfwdev; 1549 } 1550 if (pfwdev == NULL) 1551 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link); 1552 else 1553 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link); 1554 1555 device_printf(fc->bdev, "New %s device ID:%08x%08x\n", 1556 fw_linkspeed[spd], 1557 fwdev->eui.hi, fwdev->eui.lo); 1558 1559 } else 1560 fwdev->status = FWDEVINIT; 1561 fwdev->dst = node; 1562 fwdev->speed = spd; 1563 1564 /* unchanged ? */ 1565 if (bcmp(&csr[0], &fwdev->csrrom[0], sizeof(uint32_t) * 5) == 0) { 1566 if (firewire_debug) 1567 printf("node%d: crom unchanged\n", node); 1568 return (0); 1569 } 1570 1571 bzero(&fwdev->csrrom[0], CROMSIZE); 1572 1573 /* copy first quad and bus info block */ 1574 bcopy(&csr[0], &fwdev->csrrom[0], sizeof(uint32_t) * 5); 1575 fwdev->rommax = CSRROMOFF + sizeof(uint32_t) * 4; 1576 1577 err = fw_explore_csrblock(fwdev, 0x14, 1); /* root directory */ 1578 1579 if (err) { 1580 fwdev->status = FWDEVINVAL; 1581 fwdev->csrrom[0] = 0; 1582 } 1583 return (err); 1584 1585 } 1586 1587 /* 1588 * Find the self_id packet for a node, ignoring sequels. 1589 */ 1590 static union fw_self_id * 1591 fw_find_self_id(struct firewire_comm *fc, int node) 1592 { 1593 uint32_t i; 1594 union fw_self_id *s; 1595 1596 for (i = 0; i < fc->topology_map->self_id_count; i++) { 1597 s = &fc->topology_map->self_id[i]; 1598 if (s->p0.sequel) 1599 continue; 1600 if (s->p0.phy_id == node) 1601 return s; 1602 } 1603 return 0; 1604 } 1605 1606 static void 1607 fw_explore(struct firewire_comm *fc) 1608 { 1609 int node, err, s, i, todo, todo2, trys; 1610 char nodes[63]; 1611 struct fw_device *dfwdev; 1612 1613 todo = 0; 1614 dfwdev = malloc(sizeof(*dfwdev), M_TEMP, M_NOWAIT); 1615 if (dfwdev == NULL) 1616 return; 1617 /* setup dummy fwdev */ 1618 dfwdev->fc = fc; 1619 dfwdev->speed = 0; 1620 dfwdev->maxrec = 8; /* 512 */ 1621 dfwdev->status = FWDEVINIT; 1622 1623 for (node = 0; node <= fc->max_node; node ++) { 1624 /* We don't probe myself and linkdown nodes */ 1625 if (node == fc->nodeid) 1626 continue; 1627 if (!fw_find_self_id(fc, node)->p0.link_active) { 1628 if (firewire_debug) 1629 printf("node%d: link down\n", node); 1630 continue; 1631 } 1632 nodes[todo++] = node; 1633 } 1634 1635 s = splfw(); 1636 for (trys = 0; todo > 0 && trys < 3; trys ++) { 1637 todo2 = 0; 1638 for (i = 0; i < todo; i ++) { 1639 dfwdev->dst = nodes[i]; 1640 err = fw_explore_node(dfwdev); 1641 if (err) 1642 nodes[todo2++] = nodes[i]; 1643 if (firewire_debug) 1644 printf("%s: node %d, err = %d\n", 1645 __FUNCTION__, node, err); 1646 } 1647 todo = todo2; 1648 } 1649 splx(s); 1650 free(dfwdev, M_TEMP); 1651 } 1652 1653 static void 1654 fw_bus_probe_thread(void *arg) 1655 { 1656 struct firewire_comm *fc; 1657 1658 fc = (struct firewire_comm *)arg; 1659 1660 config_pending_decr(); 1661 1662 FW_LOCK; 1663 while (1) { 1664 if (fc->status == FWBUSEXPLORE) { 1665 fw_explore(fc); 1666 fc->status = FWBUSEXPDONE; 1667 if (firewire_debug) 1668 printf("bus_explore done\n"); 1669 fw_attach_dev(fc); 1670 } else if (fc->status == FWBUSDETACH) 1671 break; 1672 tsleep((void *)fc, FWPRI, "fwprobe", 0); 1673 } 1674 FW_UNLOCK; 1675 wakeup(fc); 1676 THREAD_EXIT(0); 1677 } 1678 1679 1680 /* 1681 * To attach sub-devices layer onto IEEE1394 bus. 1682 */ 1683 static void 1684 fw_attach_dev(struct firewire_comm *fc) 1685 { 1686 struct fw_device *fwdev, *next; 1687 struct firewire_dev_comm *fdc; 1688 struct fw_attach_args fwa; 1689 1690 fwa.name = "sbp"; 1691 fwa.fc = fc; 1692 1693 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1694 next = STAILQ_NEXT(fwdev, link); 1695 switch (fwdev->status) { 1696 case FWDEVNEW: 1697 FIREWIRE_SBP_ATTACH; 1698 1699 case FWDEVINIT: 1700 case FWDEVATTACHED: 1701 fwdev->status = FWDEVATTACHED; 1702 break; 1703 1704 case FWDEVINVAL: 1705 fwdev->rcnt ++; 1706 break; 1707 1708 default: 1709 /* XXX */ 1710 break; 1711 } 1712 } 1713 1714 FIREWIRE_CHILDREN_FOREACH_FUNC(post_explore, fdc); 1715 1716 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1717 next = STAILQ_NEXT(fwdev, link); 1718 if (fwdev->rcnt > 0 && fwdev->rcnt > hold_count) { 1719 /* 1720 * Remove devices which have not been seen 1721 * for a while. 1722 */ 1723 FIREWIRE_SBP_DETACH; 1724 STAILQ_REMOVE(&fc->devices, fwdev, fw_device, link); 1725 free(fwdev, M_FW); 1726 } 1727 } 1728 1729 return; 1730 } 1731 1732 /* 1733 * To allocate unique transaction label. 1734 */ 1735 static int 1736 fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer) 1737 { 1738 u_int i; 1739 struct fw_xfer *txfer; 1740 int s; 1741 static uint32_t label = 0; 1742 1743 s = splfw(); 1744 for( i = 0 ; i < 0x40 ; i ++){ 1745 label = (label + 1) & 0x3f; 1746 STAILQ_FOREACH(txfer, &fc->tlabels[label], tlabel) 1747 if (txfer->send.hdr.mode.hdr.dst == 1748 xfer->send.hdr.mode.hdr.dst) 1749 break; 1750 if(txfer == NULL) { 1751 STAILQ_INSERT_TAIL(&fc->tlabels[label], xfer, tlabel); 1752 splx(s); 1753 if (firewire_debug > 1) 1754 printf("fw_get_tlabel: dst=%d tl=%d\n", 1755 xfer->send.hdr.mode.hdr.dst, label); 1756 return(label); 1757 } 1758 } 1759 splx(s); 1760 1761 if (firewire_debug > 1) 1762 printf("fw_get_tlabel: no free tlabel\n"); 1763 return(-1); 1764 } 1765 1766 static void 1767 fw_rcv_copy(struct fw_rcv_buf *rb) 1768 { 1769 struct fw_pkt *pkt; 1770 u_char *p; 1771 const struct tcode_info *tinfo; 1772 u_int res, i, len, plen; 1773 1774 rb->xfer->recv.spd = rb->spd; 1775 1776 pkt = (struct fw_pkt *)rb->vec->iov_base; 1777 tinfo = &rb->fc->tcode[pkt->mode.hdr.tcode]; 1778 1779 /* Copy header */ 1780 p = (u_char *)&rb->xfer->recv.hdr; 1781 bcopy(rb->vec->iov_base, p, tinfo->hdr_len); 1782 rb->vec->iov_base = (u_char *)rb->vec->iov_base + tinfo->hdr_len; 1783 rb->vec->iov_len -= tinfo->hdr_len; 1784 1785 /* Copy payload */ 1786 p = (u_char *)rb->xfer->recv.payload; 1787 res = rb->xfer->recv.pay_len; 1788 1789 /* special handling for RRESQ */ 1790 if (pkt->mode.hdr.tcode == FWTCODE_RRESQ && 1791 p != NULL && res >= sizeof(uint32_t)) { 1792 *(uint32_t *)p = pkt->mode.rresq.data; 1793 rb->xfer->recv.pay_len = sizeof(uint32_t); 1794 return; 1795 } 1796 1797 if ((tinfo->flag & FWTI_BLOCK_ASY) == 0) 1798 return; 1799 1800 plen = pkt->mode.rresb.len; 1801 1802 for (i = 0; i < rb->nvec; i++, rb->vec++) { 1803 len = MIN(rb->vec->iov_len, plen); 1804 if (res < len) { 1805 printf("rcv buffer(%d) is %d bytes short.\n", 1806 rb->xfer->recv.pay_len, len - res); 1807 len = res; 1808 } 1809 if (p) { 1810 bcopy(rb->vec->iov_base, p, len); 1811 p += len; 1812 } 1813 res -= len; 1814 plen -= len; 1815 if (res == 0 || plen == 0) 1816 break; 1817 } 1818 rb->xfer->recv.pay_len -= res; 1819 1820 } 1821 1822 /* 1823 * Generic packet receiving process. 1824 */ 1825 void 1826 fw_rcv(struct fw_rcv_buf *rb) 1827 { 1828 struct fw_pkt *fp, *resfp; 1829 struct fw_bind *bind; 1830 int tcode; 1831 int i, len, oldstate; 1832 #if 0 1833 { 1834 uint32_t *qld; 1835 int i; 1836 qld = (uint32_t *)buf; 1837 printf("spd %d len:%d\n", spd, len); 1838 for( i = 0 ; i <= len && i < 32; i+= 4){ 1839 printf("0x%08x ", ntohl(qld[i/4])); 1840 if((i % 16) == 15) printf("\n"); 1841 } 1842 if((i % 16) != 15) printf("\n"); 1843 } 1844 #endif 1845 fp = (struct fw_pkt *)rb->vec[0].iov_base; 1846 tcode = fp->mode.common.tcode; 1847 switch (tcode) { 1848 case FWTCODE_WRES: 1849 case FWTCODE_RRESQ: 1850 case FWTCODE_RRESB: 1851 case FWTCODE_LRES: 1852 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1853 fp->mode.hdr.tlrt >> 2); 1854 if(rb->xfer == NULL) { 1855 printf("fw_rcv: unknown response " 1856 "%s(%x) src=0x%x tl=0x%x rt=%d data=0x%x\n", 1857 tcode_str[tcode], tcode, 1858 fp->mode.hdr.src, 1859 fp->mode.hdr.tlrt >> 2, 1860 fp->mode.hdr.tlrt & 3, 1861 fp->mode.rresq.data); 1862 #if 1 1863 printf("try ad-hoc work around!!\n"); 1864 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1865 (fp->mode.hdr.tlrt >> 2)^3); 1866 if (rb->xfer == NULL) { 1867 printf("no use...\n"); 1868 return; 1869 } 1870 #else 1871 return; 1872 #endif 1873 } 1874 fw_rcv_copy(rb); 1875 if (rb->xfer->recv.hdr.mode.wres.rtcode != RESP_CMP) 1876 rb->xfer->resp = EIO; 1877 else 1878 rb->xfer->resp = 0; 1879 /* make sure the packet is drained in AT queue */ 1880 oldstate = rb->xfer->state; 1881 rb->xfer->state = FWXF_RCVD; 1882 switch (oldstate) { 1883 case FWXF_SENT: 1884 fw_xfer_done(rb->xfer); 1885 break; 1886 case FWXF_START: 1887 #if 0 1888 if (firewire_debug) 1889 printf("not sent yet tl=%x\n", rb->xfer->tl); 1890 #endif 1891 break; 1892 default: 1893 printf("unexpected state %d\n", rb->xfer->state); 1894 } 1895 return; 1896 case FWTCODE_WREQQ: 1897 case FWTCODE_WREQB: 1898 case FWTCODE_RREQQ: 1899 case FWTCODE_RREQB: 1900 case FWTCODE_LREQ: 1901 bind = fw_bindlookup(rb->fc, fp->mode.rreqq.dest_hi, 1902 fp->mode.rreqq.dest_lo); 1903 if(bind == NULL){ 1904 #if 1 1905 printf("Unknown service addr 0x%04x:0x%08x %s(%x)" 1906 #if defined(__DragonFly__) || \ 1907 (defined(__FreeBSD__) && __FreeBSD_version < 500000) 1908 " src=0x%x data=%lx\n", 1909 #else 1910 " src=0x%x data=%x\n", 1911 #endif 1912 fp->mode.wreqq.dest_hi, fp->mode.wreqq.dest_lo, 1913 tcode_str[tcode], tcode, 1914 fp->mode.hdr.src, ntohl(fp->mode.wreqq.data)); 1915 #endif 1916 if (rb->fc->status == FWBUSRESET) { 1917 printf("fw_rcv: cannot respond(bus reset)!\n"); 1918 return; 1919 } 1920 rb->xfer = fw_xfer_alloc(M_FWXFER); 1921 if(rb->xfer == NULL){ 1922 return; 1923 } 1924 rb->xfer->send.spd = rb->spd; 1925 rb->xfer->send.pay_len = 0; 1926 resfp = &rb->xfer->send.hdr; 1927 switch (tcode) { 1928 case FWTCODE_WREQQ: 1929 case FWTCODE_WREQB: 1930 resfp->mode.hdr.tcode = FWTCODE_WRES; 1931 break; 1932 case FWTCODE_RREQQ: 1933 resfp->mode.hdr.tcode = FWTCODE_RRESQ; 1934 break; 1935 case FWTCODE_RREQB: 1936 resfp->mode.hdr.tcode = FWTCODE_RRESB; 1937 break; 1938 case FWTCODE_LREQ: 1939 resfp->mode.hdr.tcode = FWTCODE_LRES; 1940 break; 1941 } 1942 resfp->mode.hdr.dst = fp->mode.hdr.src; 1943 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt; 1944 resfp->mode.hdr.pri = fp->mode.hdr.pri; 1945 resfp->mode.rresb.rtcode = RESP_ADDRESS_ERROR; 1946 resfp->mode.rresb.extcode = 0; 1947 resfp->mode.rresb.len = 0; 1948 /* 1949 rb->xfer->hand = fw_asy_callback; 1950 */ 1951 rb->xfer->hand = fw_xfer_free; 1952 if(fw_asyreq(rb->fc, -1, rb->xfer)){ 1953 fw_xfer_free(rb->xfer); 1954 return; 1955 } 1956 return; 1957 } 1958 len = 0; 1959 for (i = 0; i < rb->nvec; i ++) 1960 len += rb->vec[i].iov_len; 1961 rb->xfer = STAILQ_FIRST(&bind->xferlist); 1962 if (rb->xfer == NULL) { 1963 #if 1 1964 printf("Discard a packet for this bind.\n"); 1965 #endif 1966 return; 1967 } 1968 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 1969 fw_rcv_copy(rb); 1970 rb->xfer->hand(rb->xfer); 1971 return; 1972 #if 0 /* shouldn't happen ?? or for GASP */ 1973 case FWTCODE_STREAM: 1974 { 1975 struct fw_xferq *xferq; 1976 1977 xferq = rb->fc->ir[sub]; 1978 #if 0 1979 printf("stream rcv dma %d len %d off %d spd %d\n", 1980 sub, len, off, spd); 1981 #endif 1982 if(xferq->queued >= xferq->maxq) { 1983 printf("receive queue is full\n"); 1984 return; 1985 } 1986 /* XXX get xfer from xfer queue, we don't need copy for 1987 per packet mode */ 1988 rb->xfer = fw_xfer_alloc_buf(M_FWXFER, 0, /* XXX */ 1989 vec[0].iov_len); 1990 if (rb->xfer == NULL) 1991 return; 1992 fw_rcv_copy(rb) 1993 s = splfw(); 1994 xferq->queued++; 1995 STAILQ_INSERT_TAIL(&xferq->q, rb->xfer, link); 1996 splx(s); 1997 sc = device_get_softc(rb->fc->bdev); 1998 #if defined(__DragonFly__) || \ 1999 (defined(__FreeBSD__) && __FreeBSD_version < 500000) 2000 if (&xferq->rsel.si_pid != 0) 2001 #else 2002 if (SEL_WAITING(&xferq->rsel)) 2003 #endif 2004 selwakeuppri(&xferq->rsel, FWPRI); 2005 if (xferq->flag & FWXFERQ_WAKEUP) { 2006 xferq->flag &= ~FWXFERQ_WAKEUP; 2007 wakeup((caddr_t)xferq); 2008 } 2009 if (xferq->flag & FWXFERQ_HANDLER) { 2010 xferq->hand(xferq); 2011 } 2012 return; 2013 break; 2014 } 2015 #endif 2016 default: 2017 printf("fw_rcv: unknow tcode %d\n", tcode); 2018 break; 2019 } 2020 } 2021 2022 /* 2023 * Post process for Bus Manager election process. 2024 */ 2025 static void 2026 fw_try_bmr_callback(struct fw_xfer *xfer) 2027 { 2028 struct firewire_comm *fc; 2029 int bmr; 2030 2031 if (xfer == NULL) 2032 return; 2033 fc = xfer->fc; 2034 if (xfer->resp != 0) 2035 goto error; 2036 if (xfer->recv.payload == NULL) 2037 goto error; 2038 if (xfer->recv.hdr.mode.lres.rtcode != FWRCODE_COMPLETE) 2039 goto error; 2040 2041 bmr = ntohl(xfer->recv.payload[0]); 2042 if (bmr == 0x3f) 2043 bmr = fc->nodeid; 2044 2045 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f); 2046 fw_xfer_free_buf(xfer); 2047 fw_bmr(fc); 2048 return; 2049 2050 error: 2051 device_printf(fc->bdev, "bus manager election failed\n"); 2052 fw_xfer_free_buf(xfer); 2053 } 2054 2055 2056 /* 2057 * To candidate Bus Manager election process. 2058 */ 2059 static void 2060 fw_try_bmr(void *arg) 2061 { 2062 struct fw_xfer *xfer; 2063 struct firewire_comm *fc = (struct firewire_comm *)arg; 2064 struct fw_pkt *fp; 2065 int err = 0; 2066 2067 xfer = fw_xfer_alloc_buf(M_FWXFER, 8, 4); 2068 if(xfer == NULL){ 2069 return; 2070 } 2071 xfer->send.spd = 0; 2072 fc->status = FWBUSMGRELECT; 2073 2074 fp = &xfer->send.hdr; 2075 fp->mode.lreq.dest_hi = 0xffff; 2076 fp->mode.lreq.tlrt = 0; 2077 fp->mode.lreq.tcode = FWTCODE_LREQ; 2078 fp->mode.lreq.pri = 0; 2079 fp->mode.lreq.src = 0; 2080 fp->mode.lreq.len = 8; 2081 fp->mode.lreq.extcode = EXTCODE_CMP_SWAP; 2082 fp->mode.lreq.dst = FWLOCALBUS | fc->irm; 2083 fp->mode.lreq.dest_lo = 0xf0000000 | BUS_MGR_ID; 2084 xfer->send.payload[0] = htonl(0x3f); 2085 xfer->send.payload[1] = htonl(fc->nodeid); 2086 xfer->hand = fw_try_bmr_callback; 2087 2088 err = fw_asyreq(fc, -1, xfer); 2089 if(err){ 2090 fw_xfer_free_buf(xfer); 2091 return; 2092 } 2093 return; 2094 } 2095 2096 #ifdef FW_VMACCESS 2097 /* 2098 * Software implementation for physical memory block access. 2099 * XXX:Too slow, usef for debug purpose only. 2100 */ 2101 static void 2102 fw_vmaccess(struct fw_xfer *xfer){ 2103 struct fw_pkt *rfp, *sfp = NULL; 2104 uint32_t *ld = (uint32_t *)xfer->recv.buf; 2105 2106 printf("vmaccess spd:%2x len:%03x data:%08x %08x %08x %08x\n", 2107 xfer->spd, xfer->recv.len, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 2108 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 2109 if(xfer->resp != 0){ 2110 fw_xfer_free( xfer); 2111 return; 2112 } 2113 if(xfer->recv.buf == NULL){ 2114 fw_xfer_free( xfer); 2115 return; 2116 } 2117 rfp = (struct fw_pkt *)xfer->recv.buf; 2118 switch(rfp->mode.hdr.tcode){ 2119 /* XXX need fix for 64bit arch */ 2120 case FWTCODE_WREQB: 2121 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2122 xfer->send.len = 12; 2123 sfp = (struct fw_pkt *)xfer->send.buf; 2124 bcopy(rfp->mode.wreqb.payload, 2125 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len)); 2126 sfp->mode.wres.tcode = FWTCODE_WRES; 2127 sfp->mode.wres.rtcode = 0; 2128 break; 2129 case FWTCODE_WREQQ: 2130 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2131 xfer->send.len = 12; 2132 sfp->mode.wres.tcode = FWTCODE_WRES; 2133 *((uint32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data; 2134 sfp->mode.wres.rtcode = 0; 2135 break; 2136 case FWTCODE_RREQB: 2137 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_FW, M_NOWAIT); 2138 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len); 2139 sfp = (struct fw_pkt *)xfer->send.buf; 2140 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo), 2141 sfp->mode.rresb.payload, (uint16_t)ntohs(rfp->mode.rreqb.len)); 2142 sfp->mode.rresb.tcode = FWTCODE_RRESB; 2143 sfp->mode.rresb.len = rfp->mode.rreqb.len; 2144 sfp->mode.rresb.rtcode = 0; 2145 sfp->mode.rresb.extcode = 0; 2146 break; 2147 case FWTCODE_RREQQ: 2148 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 2149 xfer->send.len = 16; 2150 sfp = (struct fw_pkt *)xfer->send.buf; 2151 sfp->mode.rresq.data = *(uint32_t *)(ntohl(rfp->mode.rreqq.dest_lo)); 2152 sfp->mode.wres.tcode = FWTCODE_RRESQ; 2153 sfp->mode.rresb.rtcode = 0; 2154 break; 2155 default: 2156 fw_xfer_free( xfer); 2157 return; 2158 } 2159 sfp->mode.hdr.dst = rfp->mode.hdr.src; 2160 xfer->dst = ntohs(rfp->mode.hdr.src); 2161 xfer->hand = fw_xfer_free; 2162 2163 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt; 2164 sfp->mode.hdr.pri = 0; 2165 2166 fw_asyreq(xfer->fc, -1, xfer); 2167 /**/ 2168 return; 2169 } 2170 #endif 2171 2172 /* 2173 * CRC16 check-sum for IEEE1394 register blocks. 2174 */ 2175 uint16_t 2176 fw_crc16(uint32_t *ptr, uint32_t len){ 2177 uint32_t i, sum, crc = 0; 2178 int shift; 2179 len = (len + 3) & ~3; 2180 for(i = 0 ; i < len ; i+= 4){ 2181 for( shift = 28 ; shift >= 0 ; shift -= 4){ 2182 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf; 2183 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum; 2184 } 2185 crc &= 0xffff; 2186 } 2187 return((uint16_t) crc); 2188 } 2189 2190 static int 2191 fw_bmr(struct firewire_comm *fc) 2192 { 2193 struct fw_device fwdev; 2194 union fw_self_id *self_id; 2195 int cmstr; 2196 uint32_t quad; 2197 2198 /* Check to see if the current root node is cycle master capable */ 2199 self_id = fw_find_self_id(fc, fc->max_node); 2200 if (fc->max_node > 0) { 2201 /* XXX check cmc bit of businfo block rather than contender */ 2202 if (self_id->p0.link_active && self_id->p0.contender) 2203 cmstr = fc->max_node; 2204 else { 2205 device_printf(fc->bdev, 2206 "root node is not cycle master capable\n"); 2207 /* XXX shall we be the cycle master? */ 2208 cmstr = fc->nodeid; 2209 /* XXX need bus reset */ 2210 } 2211 } else 2212 cmstr = -1; 2213 2214 device_printf(fc->bdev, "bus manager %d ", CSRARC(fc, BUS_MGR_ID)); 2215 if(CSRARC(fc, BUS_MGR_ID) != fc->nodeid) { 2216 /* We are not the bus manager */ 2217 printf("\n"); 2218 return(0); 2219 } 2220 printf("(me)\n"); 2221 2222 /* Optimize gapcount */ 2223 if(fc->max_hop <= MAX_GAPHOP ) 2224 fw_phy_config(fc, cmstr, gap_cnt[fc->max_hop]); 2225 /* If we are the cycle master, nothing to do */ 2226 if (cmstr == fc->nodeid || cmstr == -1) 2227 return 0; 2228 /* Bus probe has not finished, make dummy fwdev for cmstr */ 2229 bzero(&fwdev, sizeof(fwdev)); 2230 fwdev.fc = fc; 2231 fwdev.dst = cmstr; 2232 fwdev.speed = 0; 2233 fwdev.maxrec = 8; /* 512 */ 2234 fwdev.status = FWDEVINIT; 2235 /* Set cmstr bit on the cycle master */ 2236 quad = htonl(1 << 8); 2237 fwmem_write_quad(&fwdev, NULL, 0/*spd*/, 2238 0xffff, 0xf0000000 | STATE_SET, &quad, fw_asy_callback_free); 2239 2240 return 0; 2241 } 2242 2243 #if defined(__FreeBSD__) 2244 static int 2245 fw_modevent(module_t mode, int type, void *data) 2246 { 2247 int err = 0; 2248 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2249 static eventhandler_tag fwdev_ehtag = NULL; 2250 #endif 2251 2252 switch (type) { 2253 case MOD_LOAD: 2254 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2255 fwdev_ehtag = EVENTHANDLER_REGISTER(dev_clone, 2256 fwdev_clone, 0, 1000); 2257 #endif 2258 break; 2259 case MOD_UNLOAD: 2260 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 2261 if (fwdev_ehtag != NULL) 2262 EVENTHANDLER_DEREGISTER(dev_clone, fwdev_ehtag); 2263 #endif 2264 break; 2265 case MOD_SHUTDOWN: 2266 break; 2267 default: 2268 return (EOPNOTSUPP); 2269 } 2270 return (err); 2271 } 2272 2273 2274 #ifdef __DragonFly__ 2275 DECLARE_DUMMY_MODULE(firewire); 2276 #endif 2277 DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,fw_modevent,0); 2278 MODULE_VERSION(firewire, 1); 2279 #endif
Cache object: 408e155bce10fbcc621d93a90f6f8768
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