firewire.c revision 120660
1/* 2 * Copyright (c) 2003 Hidetoshi Shimokawa 3 * Copyright (c) 1998-2002 Katsushi Kobayashi and Hidetoshi Shimokawa 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the acknowledgement as bellow: 16 * 17 * This product includes software developed by K. Kobayashi and H. Shimokawa 18 * 19 * 4. The name of the author may not be used to endorse or promote products 20 * derived from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 24 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 25 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 26 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 27 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 28 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 30 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 31 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 32 * POSSIBILITY OF SUCH DAMAGE. 33 * 34 * $FreeBSD: head/sys/dev/firewire/firewire.c 120660 2003-10-02 04:06:56Z simokawa $ 35 * 36 */ 37 38#include <sys/param.h> 39#include <sys/systm.h> 40#include <sys/types.h> 41 42#include <sys/kernel.h> 43#include <sys/malloc.h> 44#include <sys/conf.h> 45#include <sys/sysctl.h> 46 47#if __FreeBSD_version < 500000 48#include <machine/clock.h> /* for DELAY() */ 49#endif 50 51#include <sys/bus.h> /* used by smbus and newbus */ 52#include <machine/bus.h> 53 54#include <dev/firewire/firewire.h> 55#include <dev/firewire/firewirereg.h> 56#include <dev/firewire/fwmem.h> 57#include <dev/firewire/iec13213.h> 58#include <dev/firewire/iec68113.h> 59 60struct crom_src_buf { 61 struct crom_src src; 62 struct crom_chunk root; 63 struct crom_chunk vendor; 64 struct crom_chunk hw; 65}; 66 67int firewire_debug=0, try_bmr=1; 68SYSCTL_INT(_debug, OID_AUTO, firewire_debug, CTLFLAG_RW, &firewire_debug, 0, 69 "FireWire driver debug flag"); 70SYSCTL_NODE(_hw, OID_AUTO, firewire, CTLFLAG_RD, 0, "FireWire Subsystem"); 71SYSCTL_INT(_hw_firewire, OID_AUTO, try_bmr, CTLFLAG_RW, &try_bmr, 0, 72 "Try to be a bus manager"); 73 74MALLOC_DEFINE(M_FW, "firewire", "FireWire"); 75MALLOC_DEFINE(M_FWXFER, "fw_xfer", "XFER/FireWire"); 76 77#define FW_MAXASYRTY 4 78#define FW_MAXDEVRCNT 4 79 80devclass_t firewire_devclass; 81 82static int firewire_match __P((device_t)); 83static int firewire_attach __P((device_t)); 84static int firewire_detach __P((device_t)); 85static int firewire_resume __P((device_t)); 86#if 0 87static int firewire_shutdown __P((device_t)); 88#endif 89static device_t firewire_add_child __P((device_t, int, const char *, int)); 90static void fw_try_bmr __P((void *)); 91static void fw_try_bmr_callback __P((struct fw_xfer *)); 92static void fw_asystart __P((struct fw_xfer *)); 93static int fw_get_tlabel __P((struct firewire_comm *, struct fw_xfer *)); 94static void fw_bus_probe __P((struct firewire_comm *)); 95static void fw_bus_explore __P((struct firewire_comm *)); 96static void fw_bus_explore_callback __P((struct fw_xfer *)); 97static void fw_attach_dev __P((struct firewire_comm *)); 98#ifdef FW_VMACCESS 99static void fw_vmaccess __P((struct fw_xfer *)); 100#endif 101struct fw_xfer *asyreqq __P((struct firewire_comm *, u_int8_t, u_int8_t, u_int8_t, 102 u_int32_t, u_int32_t, void (*)__P((struct fw_xfer *)))); 103static int fw_bmr __P((struct firewire_comm *)); 104 105static device_method_t firewire_methods[] = { 106 /* Device interface */ 107 DEVMETHOD(device_probe, firewire_match), 108 DEVMETHOD(device_attach, firewire_attach), 109 DEVMETHOD(device_detach, firewire_detach), 110 DEVMETHOD(device_suspend, bus_generic_suspend), 111 DEVMETHOD(device_resume, firewire_resume), 112 DEVMETHOD(device_shutdown, bus_generic_shutdown), 113 114 /* Bus interface */ 115 DEVMETHOD(bus_add_child, firewire_add_child), 116 DEVMETHOD(bus_print_child, bus_generic_print_child), 117 118 { 0, 0 } 119}; 120char linkspeed[7][0x10]={"S100","S200","S400","S800","S1600","S3200","Unknown"}; 121 122/* IEEE-1394a Table C-2 Gap count as a function of hops*/ 123#define MAX_GAPHOP 15 124u_int gap_cnt[] = { 5, 5, 7, 8, 10, 13, 16, 18, 125 21, 24, 26, 29, 32, 35, 37, 40}; 126 127static driver_t firewire_driver = { 128 "firewire", 129 firewire_methods, 130 sizeof(struct firewire_softc), 131}; 132 133/* 134 * Lookup fwdev by node id. 135 */ 136struct fw_device * 137fw_noderesolve_nodeid(struct firewire_comm *fc, int dst) 138{ 139 struct fw_device *fwdev; 140 int s; 141 142 s = splfw(); 143 STAILQ_FOREACH(fwdev, &fc->devices, link) 144 if (fwdev->dst == dst && fwdev->status != FWDEVINVAL) 145 break; 146 splx(s); 147 148 return fwdev; 149} 150 151/* 152 * Lookup fwdev by EUI64. 153 */ 154struct fw_device * 155fw_noderesolve_eui64(struct firewire_comm *fc, struct fw_eui64 *eui) 156{ 157 struct fw_device *fwdev; 158 int s; 159 160 s = splfw(); 161 STAILQ_FOREACH(fwdev, &fc->devices, link) 162 if (FW_EUI64_EQUAL(fwdev->eui, *eui)) 163 break; 164 splx(s); 165 166 if(fwdev == NULL) return NULL; 167 if(fwdev->status == FWDEVINVAL) return NULL; 168 return fwdev; 169} 170 171/* 172 * Async. request procedure for userland application. 173 */ 174int 175fw_asyreq(struct firewire_comm *fc, int sub, struct fw_xfer *xfer) 176{ 177 int err = 0; 178 struct fw_xferq *xferq; 179 int tl = 0, len; 180 struct fw_pkt *fp; 181 int tcode; 182 struct tcode_info *info; 183 184 if(xfer == NULL) return EINVAL; 185 if(xfer->act.hand == NULL){ 186 printf("act.hand == NULL\n"); 187 return EINVAL; 188 } 189 fp = &xfer->send.hdr; 190 191 tcode = fp->mode.common.tcode & 0xf; 192 info = &fc->tcode[tcode]; 193 if (info->flag == 0) { 194 printf("invalid tcode=%d\n", tcode); 195 return EINVAL; 196 } 197 if (info->flag & FWTI_REQ) 198 xferq = fc->atq; 199 else 200 xferq = fc->ats; 201 len = info->hdr_len; 202 if (xfer->send.pay_len > MAXREC(fc->maxrec)) { 203 printf("send.pay_len > maxrec\n"); 204 return EINVAL; 205 } 206 if (info->flag & FWTI_BLOCK_STR) 207 len = fp->mode.stream.len; 208 else if (info->flag & FWTI_BLOCK_ASY) 209 len = fp->mode.rresb.len; 210 else 211 len = 0; 212 if (len != xfer->send.pay_len){ 213 printf("len(%d) != send.pay_len(%d) (tcode=%d)\n", 214 len, xfer->send.pay_len, tcode); 215 return EINVAL; 216 } 217 218 if(xferq->start == NULL){ 219 printf("xferq->start == NULL\n"); 220 return EINVAL; 221 } 222 if(!(xferq->queued < xferq->maxq)){ 223 device_printf(fc->bdev, "Discard a packet (queued=%d)\n", 224 xferq->queued); 225 return EINVAL; 226 } 227 228 microtime(&xfer->tv); 229 if (info->flag & FWTI_TLABEL) { 230 if((tl = fw_get_tlabel(fc, xfer)) == -1 ) 231 return EIO; 232 fp->mode.hdr.tlrt = tl << 2; 233 } 234 235 xfer->tl = tl; 236 xfer->resp = 0; 237 xfer->fc = fc; 238 xfer->q = xferq; 239 xfer->retry_req = fw_asybusy; 240 241 fw_asystart(xfer); 242 return err; 243} 244/* 245 * Wakeup blocked process. 246 */ 247void 248fw_asy_callback(struct fw_xfer *xfer){ 249 wakeup(xfer); 250 return; 251} 252/* 253 * Postpone to later retry. 254 */ 255void fw_asybusy(struct fw_xfer *xfer){ 256 printf("fw_asybusy\n"); 257/* 258 xfer->ch = timeout((timeout_t *)fw_asystart, (void *)xfer, 20000); 259*/ 260 DELAY(20000); 261 fw_asystart(xfer); 262 return; 263} 264 265/* 266 * Async. request with given xfer structure. 267 */ 268static void 269fw_asystart(struct fw_xfer *xfer) 270{ 271 struct firewire_comm *fc = xfer->fc; 272 int s; 273 if(xfer->retry++ >= fc->max_asyretry){ 274 device_printf(fc->bdev, "max_asyretry exceeded\n"); 275 xfer->resp = EBUSY; 276 xfer->state = FWXF_BUSY; 277 xfer->act.hand(xfer); 278 return; 279 } 280#if 0 /* XXX allow bus explore packets only after bus rest */ 281 if (fc->status < FWBUSEXPLORE) { 282 xfer->resp = EAGAIN; 283 xfer->state = FWXF_BUSY; 284 if (xfer->act.hand != NULL) 285 xfer->act.hand(xfer); 286 return; 287 } 288#endif 289 s = splfw(); 290 xfer->state = FWXF_INQ; 291 STAILQ_INSERT_TAIL(&xfer->q->q, xfer, link); 292 xfer->q->queued ++; 293 splx(s); 294 /* XXX just queue for mbuf */ 295 if (xfer->mbuf == NULL) 296 xfer->q->start(fc); 297 return; 298} 299 300static int 301firewire_match( device_t dev ) 302{ 303 device_set_desc(dev, "IEEE1394(FireWire) bus"); 304 return -140; 305} 306 307static void 308firewire_xfer_timeout(struct firewire_comm *fc) 309{ 310 struct fw_xfer *xfer; 311 struct tlabel *tl; 312 struct timeval tv; 313 struct timeval split_timeout; 314 int i, s; 315 316 split_timeout.tv_sec = 0; 317 split_timeout.tv_usec = 200 * 1000; /* 200 msec */ 318 319 microtime(&tv); 320 timevalsub(&tv, &split_timeout); 321 322 s = splfw(); 323 for (i = 0; i < 0x40; i ++) { 324 while ((tl = STAILQ_FIRST(&fc->tlabels[i])) != NULL) { 325 xfer = tl->xfer; 326 if (timevalcmp(&xfer->tv, &tv, >)) 327 /* the rests are newer than this */ 328 break; 329 device_printf(fc->bdev, 330 "split transaction timeout dst=0x%x tl=0x%x state=%d\n", 331 xfer->send.hdr.mode.hdr.dst, i, xfer->state); 332 xfer->resp = ETIMEDOUT; 333 STAILQ_REMOVE_HEAD(&fc->tlabels[i], link); 334 fw_xfer_done(xfer); 335 } 336 } 337 splx(s); 338} 339 340static void 341firewire_watchdog(void *arg) 342{ 343 struct firewire_comm *fc; 344 345 fc = (struct firewire_comm *)arg; 346 firewire_xfer_timeout(fc); 347 fc->timeout(fc); 348 callout_reset(&fc->timeout_callout, hz / 10, 349 (void *)firewire_watchdog, (void *)fc); 350} 351 352/* 353 * The attach routine. 354 */ 355static int 356firewire_attach(device_t dev) 357{ 358 int unit; 359 struct firewire_softc *sc = device_get_softc(dev); 360 device_t pa = device_get_parent(dev); 361 struct firewire_comm *fc; 362 363 fc = (struct firewire_comm *)device_get_softc(pa); 364 sc->fc = fc; 365 fc->status = FWBUSNOTREADY; 366 367 unit = device_get_unit(dev); 368 if( fc->nisodma > FWMAXNDMA) fc->nisodma = FWMAXNDMA; 369 370 fwdev_makedev(sc); 371 372 CALLOUT_INIT(&sc->fc->timeout_callout); 373 CALLOUT_INIT(&sc->fc->bmr_callout); 374 CALLOUT_INIT(&sc->fc->retry_probe_callout); 375 CALLOUT_INIT(&sc->fc->busprobe_callout); 376 377 callout_reset(&sc->fc->timeout_callout, hz, 378 (void *)firewire_watchdog, (void *)sc->fc); 379 380 /* Locate our children */ 381 bus_generic_probe(dev); 382 383 /* launch attachement of the added children */ 384 bus_generic_attach(dev); 385 386 /* bus_reset */ 387 fc->ibr(fc); 388 389 return 0; 390} 391 392/* 393 * Attach it as child. 394 */ 395static device_t 396firewire_add_child(device_t dev, int order, const char *name, int unit) 397{ 398 device_t child; 399 struct firewire_softc *sc; 400 401 sc = (struct firewire_softc *)device_get_softc(dev); 402 child = device_add_child(dev, name, unit); 403 if (child) { 404 device_set_ivars(child, sc->fc); 405 device_probe_and_attach(child); 406 } 407 408 return child; 409} 410 411static int 412firewire_resume(device_t dev) 413{ 414 struct firewire_softc *sc; 415 416 sc = (struct firewire_softc *)device_get_softc(dev); 417 sc->fc->status = FWBUSNOTREADY; 418 419 bus_generic_resume(dev); 420 421 return(0); 422} 423 424/* 425 * Dettach it. 426 */ 427static int 428firewire_detach(device_t dev) 429{ 430 struct firewire_softc *sc; 431 struct csrdir *csrd, *next; 432 struct fw_device *fwdev, *fwdev_next; 433 int err; 434 435 sc = (struct firewire_softc *)device_get_softc(dev); 436 if ((err = fwdev_destroydev(sc)) != 0) 437 return err; 438 439 if ((err = bus_generic_detach(dev)) != 0) 440 return err; 441 442 callout_stop(&sc->fc->timeout_callout); 443 callout_stop(&sc->fc->bmr_callout); 444 callout_stop(&sc->fc->retry_probe_callout); 445 callout_stop(&sc->fc->busprobe_callout); 446 447 /* XXX xfree_free and untimeout on all xfers */ 448 for (fwdev = STAILQ_FIRST(&sc->fc->devices); fwdev != NULL; 449 fwdev = fwdev_next) { 450 fwdev_next = STAILQ_NEXT(fwdev, link); 451 free(fwdev, M_FW); 452 } 453 for (csrd = SLIST_FIRST(&sc->fc->csrfree); csrd != NULL; csrd = next) { 454 next = SLIST_NEXT(csrd, link); 455 free(csrd, M_FW); 456 } 457 free(sc->fc->topology_map, M_FW); 458 free(sc->fc->speed_map, M_FW); 459 free(sc->fc->crom_src_buf, M_FW); 460 return(0); 461} 462#if 0 463static int 464firewire_shutdown( device_t dev ) 465{ 466 return 0; 467} 468#endif 469 470 471static void 472fw_xferq_drain(struct fw_xferq *xferq) 473{ 474 struct fw_xfer *xfer; 475 476 while ((xfer = STAILQ_FIRST(&xferq->q)) != NULL) { 477 STAILQ_REMOVE_HEAD(&xferq->q, link); 478 xferq->queued --; 479 xfer->resp = EAGAIN; 480 fw_xfer_done(xfer); 481 } 482} 483 484void 485fw_drain_txq(struct firewire_comm *fc) 486{ 487 int i; 488 489 fw_xferq_drain(fc->atq); 490 fw_xferq_drain(fc->ats); 491 for(i = 0; i < fc->nisodma; i++) 492 fw_xferq_drain(fc->it[i]); 493} 494 495static void 496fw_reset_csr(struct firewire_comm *fc) 497{ 498 int i; 499 500 CSRARC(fc, STATE_CLEAR) 501 = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 502 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 503 CSRARC(fc, NODE_IDS) = 0x3f; 504 505 CSRARC(fc, TOPO_MAP + 8) = 0; 506 fc->irm = -1; 507 508 fc->max_node = -1; 509 510 for(i = 2; i < 0x100/4 - 2 ; i++){ 511 CSRARC(fc, SPED_MAP + i * 4) = 0; 512 } 513 CSRARC(fc, STATE_CLEAR) = 1 << 23 | 0 << 17 | 1 << 16 | 1 << 15 | 1 << 14 ; 514 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 515 CSRARC(fc, RESET_START) = 0; 516 CSRARC(fc, SPLIT_TIMEOUT_HI) = 0; 517 CSRARC(fc, SPLIT_TIMEOUT_LO) = 800 << 19; 518 CSRARC(fc, CYCLE_TIME) = 0x0; 519 CSRARC(fc, BUS_TIME) = 0x0; 520 CSRARC(fc, BUS_MGR_ID) = 0x3f; 521 CSRARC(fc, BANDWIDTH_AV) = 4915; 522 CSRARC(fc, CHANNELS_AV_HI) = 0xffffffff; 523 CSRARC(fc, CHANNELS_AV_LO) = 0xffffffff; 524 CSRARC(fc, IP_CHANNELS) = (1 << 31); 525 526 CSRARC(fc, CONF_ROM) = 0x04 << 24; 527 CSRARC(fc, CONF_ROM + 4) = 0x31333934; /* means strings 1394 */ 528 CSRARC(fc, CONF_ROM + 8) = 1 << 31 | 1 << 30 | 1 << 29 | 529 1 << 28 | 0xff << 16 | 0x09 << 8; 530 CSRARC(fc, CONF_ROM + 0xc) = 0; 531 532/* DV depend CSRs see blue book */ 533 CSRARC(fc, oPCR) &= ~DV_BROADCAST_ON; 534 CSRARC(fc, iPCR) &= ~DV_BROADCAST_ON; 535 536 CSRARC(fc, STATE_CLEAR) &= ~(1 << 23 | 1 << 15 | 1 << 14 ); 537 CSRARC(fc, STATE_SET) = CSRARC(fc, STATE_CLEAR); 538} 539 540static void 541fw_init_crom(struct firewire_comm *fc) 542{ 543 struct crom_src *src; 544 545 fc->crom_src_buf = (struct crom_src_buf *) 546 malloc(sizeof(struct crom_src_buf), M_FW, M_WAITOK | M_ZERO); 547 if (fc->crom_src_buf == NULL) 548 return; 549 550 src = &fc->crom_src_buf->src; 551 bzero(src, sizeof(struct crom_src)); 552 553 /* BUS info sample */ 554 src->hdr.info_len = 4; 555 556 src->businfo.bus_name = CSR_BUS_NAME_IEEE1394; 557 558 src->businfo.irmc = 1; 559 src->businfo.cmc = 1; 560 src->businfo.isc = 1; 561 src->businfo.bmc = 1; 562 src->businfo.pmc = 0; 563 src->businfo.cyc_clk_acc = 100; 564 src->businfo.max_rec = fc->maxrec; 565 src->businfo.max_rom = MAXROM_4; 566 src->businfo.generation = 1; 567 src->businfo.link_spd = fc->speed; 568 569 src->businfo.eui64.hi = fc->eui.hi; 570 src->businfo.eui64.lo = fc->eui.lo; 571 572 STAILQ_INIT(&src->chunk_list); 573 574 fc->crom_src = src; 575 fc->crom_root = &fc->crom_src_buf->root; 576} 577 578static void 579fw_reset_crom(struct firewire_comm *fc) 580{ 581 struct crom_src_buf *buf; 582 struct crom_src *src; 583 struct crom_chunk *root; 584 585 if (fc->crom_src_buf == NULL) 586 fw_init_crom(fc); 587 588 buf = fc->crom_src_buf; 589 src = fc->crom_src; 590 root = fc->crom_root; 591 592 STAILQ_INIT(&src->chunk_list); 593 594 bzero(root, sizeof(struct crom_chunk)); 595 crom_add_chunk(src, NULL, root, 0); 596 crom_add_entry(root, CSRKEY_NCAP, 0x0083c0); /* XXX */ 597 /* private company_id */ 598 crom_add_entry(root, CSRKEY_VENDOR, CSRVAL_VENDOR_PRIVATE); 599 crom_add_simple_text(src, root, &buf->vendor, "FreeBSD Project"); 600 crom_add_entry(root, CSRKEY_HW, __FreeBSD_version); 601 crom_add_simple_text(src, root, &buf->hw, hostname); 602} 603 604/* 605 * Called after bus reset. 606 */ 607void 608fw_busreset(struct firewire_comm *fc) 609{ 610 struct firewire_dev_comm *fdc; 611 struct crom_src *src; 612 device_t *devlistp; 613 void *newrom; 614 int i, devcnt; 615 616 switch(fc->status){ 617 case FWBUSMGRELECT: 618 callout_stop(&fc->bmr_callout); 619 break; 620 default: 621 break; 622 } 623 fc->status = FWBUSRESET; 624 fw_reset_csr(fc); 625 fw_reset_crom(fc); 626 627 if (device_get_children(fc->bdev, &devlistp, &devcnt) == 0) { 628 for( i = 0 ; i < devcnt ; i++) 629 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 630 fdc = device_get_softc(devlistp[i]); 631 if (fdc->post_busreset != NULL) 632 fdc->post_busreset(fdc); 633 } 634 free(devlistp, M_TEMP); 635 } 636 637 newrom = malloc(CROMSIZE, M_FW, M_NOWAIT | M_ZERO); 638 src = &fc->crom_src_buf->src; 639 crom_load(src, (u_int32_t *)newrom, CROMSIZE); 640 if (bcmp(newrom, fc->config_rom, CROMSIZE) != 0) { 641 /* bump generation and reload */ 642 src->businfo.generation ++; 643 /* generation must be between 0x2 and 0xF */ 644 if (src->businfo.generation < 2) 645 src->businfo.generation ++; 646 crom_load(src, (u_int32_t *)newrom, CROMSIZE); 647 bcopy(newrom, (void *)fc->config_rom, CROMSIZE); 648 } 649 free(newrom, M_FW); 650} 651 652/* Call once after reboot */ 653void fw_init(struct firewire_comm *fc) 654{ 655 int i; 656 struct csrdir *csrd; 657#ifdef FW_VMACCESS 658 struct fw_xfer *xfer; 659 struct fw_bind *fwb; 660#endif 661 662 fc->max_asyretry = FW_MAXASYRTY; 663 664 fc->arq->queued = 0; 665 fc->ars->queued = 0; 666 fc->atq->queued = 0; 667 fc->ats->queued = 0; 668 669 fc->arq->buf = NULL; 670 fc->ars->buf = NULL; 671 fc->atq->buf = NULL; 672 fc->ats->buf = NULL; 673 674 fc->arq->flag = 0; 675 fc->ars->flag = 0; 676 fc->atq->flag = 0; 677 fc->ats->flag = 0; 678 679 STAILQ_INIT(&fc->atq->q); 680 STAILQ_INIT(&fc->ats->q); 681 682 for( i = 0 ; i < fc->nisodma ; i ++ ){ 683 fc->it[i]->queued = 0; 684 fc->ir[i]->queued = 0; 685 686 fc->it[i]->start = NULL; 687 fc->ir[i]->start = NULL; 688 689 fc->it[i]->buf = NULL; 690 fc->ir[i]->buf = NULL; 691 692 fc->it[i]->flag = FWXFERQ_STREAM; 693 fc->ir[i]->flag = FWXFERQ_STREAM; 694 695 STAILQ_INIT(&fc->it[i]->q); 696 STAILQ_INIT(&fc->ir[i]->q); 697 698 STAILQ_INIT(&fc->it[i]->binds); 699 STAILQ_INIT(&fc->ir[i]->binds); 700 } 701 702 fc->arq->maxq = FWMAXQUEUE; 703 fc->ars->maxq = FWMAXQUEUE; 704 fc->atq->maxq = FWMAXQUEUE; 705 fc->ats->maxq = FWMAXQUEUE; 706 707 for( i = 0 ; i < fc->nisodma ; i++){ 708 fc->ir[i]->maxq = FWMAXQUEUE; 709 fc->it[i]->maxq = FWMAXQUEUE; 710 } 711/* Initialize csr registers */ 712 fc->topology_map = (struct fw_topology_map *)malloc( 713 sizeof(struct fw_topology_map), 714 M_FW, M_NOWAIT | M_ZERO); 715 fc->speed_map = (struct fw_speed_map *)malloc( 716 sizeof(struct fw_speed_map), 717 M_FW, M_NOWAIT | M_ZERO); 718 CSRARC(fc, TOPO_MAP) = 0x3f1 << 16; 719 CSRARC(fc, TOPO_MAP + 4) = 1; 720 CSRARC(fc, SPED_MAP) = 0x3f1 << 16; 721 CSRARC(fc, SPED_MAP + 4) = 1; 722 723 STAILQ_INIT(&fc->devices); 724 STAILQ_INIT(&fc->pending); 725 726/* Initialize csr ROM work space */ 727 SLIST_INIT(&fc->ongocsr); 728 SLIST_INIT(&fc->csrfree); 729 for( i = 0 ; i < FWMAXCSRDIR ; i++){ 730 csrd = (struct csrdir *) malloc(sizeof(struct csrdir), M_FW,M_NOWAIT); 731 if(csrd == NULL) break; 732 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 733 } 734 735/* Initialize Async handlers */ 736 STAILQ_INIT(&fc->binds); 737 for( i = 0 ; i < 0x40 ; i++){ 738 STAILQ_INIT(&fc->tlabels[i]); 739 } 740 741/* DV depend CSRs see blue book */ 742#if 0 743 CSRARC(fc, oMPR) = 0x3fff0001; /* # output channel = 1 */ 744 CSRARC(fc, oPCR) = 0x8000007a; 745 for(i = 4 ; i < 0x7c/4 ; i+=4){ 746 CSRARC(fc, i + oPCR) = 0x8000007a; 747 } 748 749 CSRARC(fc, iMPR) = 0x00ff0001; /* # input channel = 1 */ 750 CSRARC(fc, iPCR) = 0x803f0000; 751 for(i = 4 ; i < 0x7c/4 ; i+=4){ 752 CSRARC(fc, i + iPCR) = 0x0; 753 } 754#endif 755 756 fc->crom_src_buf = NULL; 757 758#ifdef FW_VMACCESS 759 xfer = fw_xfer_alloc(); 760 if(xfer == NULL) return; 761 762 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_FW, M_NOWAIT); 763 if(fwb == NULL){ 764 fw_xfer_free(xfer); 765 } 766 xfer->act.hand = fw_vmaccess; 767 xfer->fc = fc; 768 xfer->sc = NULL; 769 770 fwb->start_hi = 0x2; 771 fwb->start_lo = 0; 772 fwb->addrlen = 0xffffffff; 773 fwb->xfer = xfer; 774 fw_bindadd(fc, fwb); 775#endif 776} 777 778#define BIND_CMP(addr, fwb) (((addr) < (fwb)->start)?-1:\ 779 ((fwb)->end < (addr))?1:0) 780 781/* 782 * To lookup binded process from IEEE1394 address. 783 */ 784struct fw_bind * 785fw_bindlookup(struct firewire_comm *fc, u_int16_t dest_hi, u_int32_t dest_lo) 786{ 787 u_int64_t addr; 788 struct fw_bind *tfw; 789 790 addr = ((u_int64_t)dest_hi << 32) | dest_lo; 791 STAILQ_FOREACH(tfw, &fc->binds, fclist) 792 if (tfw->act_type != FWACT_NULL && BIND_CMP(addr, tfw) == 0) 793 return(tfw); 794 return(NULL); 795} 796 797/* 798 * To bind IEEE1394 address block to process. 799 */ 800int 801fw_bindadd(struct firewire_comm *fc, struct fw_bind *fwb) 802{ 803 struct fw_bind *tfw, *prev = NULL; 804 805 if (fwb->start > fwb->end) { 806 printf("%s: invalid range\n", __FUNCTION__); 807 return EINVAL; 808 } 809 810 STAILQ_FOREACH(tfw, &fc->binds, fclist) { 811 if (fwb->end < tfw->start) 812 break; 813 prev = tfw; 814 } 815 if (prev == NULL) { 816 STAILQ_INSERT_HEAD(&fc->binds, fwb, fclist); 817 goto out; 818 } 819 if (prev->end < fwb->start) { 820 STAILQ_INSERT_AFTER(&fc->binds, prev, fwb, fclist); 821 goto out; 822 } 823 824 printf("%s: bind failed\n", __FUNCTION__); 825 return (EBUSY); 826 827out: 828 if (fwb->act_type == FWACT_CH) 829 STAILQ_INSERT_HEAD(&fc->ir[fwb->sub]->binds, fwb, chlist); 830 return (0); 831} 832 833/* 834 * To free IEEE1394 address block. 835 */ 836int 837fw_bindremove(struct firewire_comm *fc, struct fw_bind *fwb) 838{ 839#if 0 840 struct fw_xfer *xfer, *next; 841#endif 842 struct fw_bind *tfw; 843 int s; 844 845 s = splfw(); 846 STAILQ_FOREACH(tfw, &fc->binds, fclist) 847 if (tfw == fwb) { 848 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist); 849 goto found; 850 } 851 852 printf("%s: no such bind\n", __FUNCTION__); 853 splx(s); 854 return (1); 855found: 856#if 0 857 /* shall we do this? */ 858 for (xfer = STAILQ_FIRST(&fwb->xferlist); xfer != NULL; xfer = next) { 859 next = STAILQ_NEXT(xfer, link); 860 fw_xfer_free(xfer); 861 } 862 STAILQ_INIT(&fwb->xferlist); 863#endif 864 865 splx(s); 866 return 0; 867} 868 869/* 870 * To free transaction label. 871 */ 872static void 873fw_tl_free(struct firewire_comm *fc, struct fw_xfer *xfer) 874{ 875 struct tlabel *tl; 876 int s = splfw(); 877 878 for( tl = STAILQ_FIRST(&fc->tlabels[xfer->tl]); tl != NULL; 879 tl = STAILQ_NEXT(tl, link)){ 880 if(tl->xfer == xfer){ 881 STAILQ_REMOVE(&fc->tlabels[xfer->tl], tl, tlabel, link); 882 free(tl, M_FW); 883 splx(s); 884 return; 885 } 886 } 887 splx(s); 888 return; 889} 890 891/* 892 * To obtain XFER structure by transaction label. 893 */ 894static struct fw_xfer * 895fw_tl2xfer(struct firewire_comm *fc, int node, int tlabel) 896{ 897 struct fw_xfer *xfer; 898 struct tlabel *tl; 899 int s = splfw(); 900 901 for( tl = STAILQ_FIRST(&fc->tlabels[tlabel]); tl != NULL; 902 tl = STAILQ_NEXT(tl, link)){ 903 if(tl->xfer->send.hdr.mode.hdr.dst == node){ 904 xfer = tl->xfer; 905 splx(s); 906 if (firewire_debug > 2) 907 printf("fw_tl2xfer: found tl=%d\n", tlabel); 908 return(xfer); 909 } 910 } 911 if (firewire_debug > 1) 912 printf("fw_tl2xfer: not found tl=%d\n", tlabel); 913 splx(s); 914 return(NULL); 915} 916 917/* 918 * To allocate IEEE1394 XFER structure. 919 */ 920struct fw_xfer * 921fw_xfer_alloc(struct malloc_type *type) 922{ 923 struct fw_xfer *xfer; 924 925 xfer = malloc(sizeof(struct fw_xfer), type, M_NOWAIT | M_ZERO); 926 if (xfer == NULL) 927 return xfer; 928 929 xfer->malloc = type; 930 931 return xfer; 932} 933 934struct fw_xfer * 935fw_xfer_alloc_buf(struct malloc_type *type, int send_len, int recv_len) 936{ 937 struct fw_xfer *xfer; 938 939 xfer = fw_xfer_alloc(type); 940 xfer->send.pay_len = send_len; 941 xfer->recv.pay_len = recv_len; 942 if (xfer == NULL) 943 return(NULL); 944 if (send_len > 0) { 945 xfer->send.payload = malloc(send_len, type, M_NOWAIT | M_ZERO); 946 if (xfer->send.payload == NULL) { 947 fw_xfer_free(xfer); 948 return(NULL); 949 } 950 } 951 if (recv_len > 0) { 952 xfer->recv.payload = malloc(recv_len, type, M_NOWAIT); 953 if (xfer->recv.payload == NULL) { 954 if (xfer->send.payload != NULL) 955 free(xfer->send.payload, type); 956 fw_xfer_free(xfer); 957 return(NULL); 958 } 959 } 960 return(xfer); 961} 962 963/* 964 * IEEE1394 XFER post process. 965 */ 966void 967fw_xfer_done(struct fw_xfer *xfer) 968{ 969 if (xfer->act.hand == NULL) { 970 printf("act.hand == NULL\n"); 971 return; 972 } 973 974 if (xfer->fc->status != FWBUSRESET) 975 xfer->act.hand(xfer); 976 else { 977 printf("fw_xfer_done: pending\n"); 978 if (xfer->fc != NULL) 979 STAILQ_INSERT_TAIL(&xfer->fc->pending, xfer, link); 980 else 981 panic("fw_xfer_done: why xfer->fc is NULL?"); 982 } 983} 984 985void 986fw_xfer_unload(struct fw_xfer* xfer) 987{ 988 int s; 989 990 if(xfer == NULL ) return; 991 if(xfer->state == FWXF_INQ){ 992 printf("fw_xfer_free FWXF_INQ\n"); 993 s = splfw(); 994 STAILQ_REMOVE(&xfer->q->q, xfer, fw_xfer, link); 995 xfer->q->queued --; 996 splx(s); 997 } 998 if (xfer->fc != NULL) { 999#if 1 1000 if(xfer->state == FWXF_START) 1001 /* 1002 * This could happen if: 1003 * 1. We call fwohci_arcv() before fwohci_txd(). 1004 * 2. firewire_watch() is called. 1005 */ 1006 printf("fw_xfer_free FWXF_START\n"); 1007#endif 1008 fw_tl_free(xfer->fc, xfer); 1009 } 1010 xfer->state = FWXF_INIT; 1011 xfer->resp = 0; 1012 xfer->retry = 0; 1013} 1014/* 1015 * To free IEEE1394 XFER structure. 1016 */ 1017void 1018fw_xfer_free_buf( struct fw_xfer* xfer) 1019{ 1020 if (xfer == NULL) { 1021 printf("%s: xfer == NULL\n", __FUNCTION__); 1022 return; 1023 } 1024 fw_xfer_unload(xfer); 1025 if(xfer->send.payload != NULL){ 1026 free(xfer->send.payload, xfer->malloc); 1027 } 1028 if(xfer->recv.payload != NULL){ 1029 free(xfer->recv.payload, xfer->malloc); 1030 } 1031 free(xfer, xfer->malloc); 1032} 1033 1034void 1035fw_xfer_free( struct fw_xfer* xfer) 1036{ 1037 if (xfer == NULL) { 1038 printf("%s: xfer == NULL\n", __FUNCTION__); 1039 return; 1040 } 1041 fw_xfer_unload(xfer); 1042 free(xfer, xfer->malloc); 1043} 1044 1045void 1046fw_asy_callback_free(struct fw_xfer *xfer) 1047{ 1048#if 0 1049 printf("asyreq done state=%d resp=%d\n", 1050 xfer->state, xfer->resp); 1051#endif 1052 fw_xfer_free(xfer); 1053} 1054 1055/* 1056 * To configure PHY. 1057 */ 1058static void 1059fw_phy_config(struct firewire_comm *fc, int root_node, int gap_count) 1060{ 1061 struct fw_xfer *xfer; 1062 struct fw_pkt *fp; 1063 1064 fc->status = FWBUSPHYCONF; 1065 1066 xfer = fw_xfer_alloc(M_FWXFER); 1067 if (xfer == NULL) 1068 return; 1069 xfer->fc = fc; 1070 xfer->retry_req = fw_asybusy; 1071 xfer->act.hand = fw_asy_callback_free; 1072 1073 fp = &xfer->send.hdr; 1074 fp->mode.ld[1] = 0; 1075 if (root_node >= 0) 1076 fp->mode.ld[1] |= (root_node & 0x3f) << 24 | 1 << 23; 1077 if (gap_count >= 0) 1078 fp->mode.ld[1] |= 1 << 22 | (gap_count & 0x3f) << 16; 1079 fp->mode.ld[2] = ~fp->mode.ld[1]; 1080/* XXX Dangerous, how to pass PHY packet to device driver */ 1081 fp->mode.common.tcode |= FWTCODE_PHY; 1082 1083 if (firewire_debug) 1084 printf("send phy_config root_node=%d gap_count=%d\n", 1085 root_node, gap_count); 1086 fw_asyreq(fc, -1, xfer); 1087} 1088 1089#if 0 1090/* 1091 * Dump self ID. 1092 */ 1093static void 1094fw_print_sid(u_int32_t sid) 1095{ 1096 union fw_self_id *s; 1097 s = (union fw_self_id *) &sid; 1098 printf("node:%d link:%d gap:%d spd:%d del:%d con:%d pwr:%d" 1099 " p0:%d p1:%d p2:%d i:%d m:%d\n", 1100 s->p0.phy_id, s->p0.link_active, s->p0.gap_count, 1101 s->p0.phy_speed, s->p0.phy_delay, s->p0.contender, 1102 s->p0.power_class, s->p0.port0, s->p0.port1, 1103 s->p0.port2, s->p0.initiated_reset, s->p0.more_packets); 1104} 1105#endif 1106 1107/* 1108 * To receive self ID. 1109 */ 1110void fw_sidrcv(struct firewire_comm* fc, u_int32_t *sid, u_int len) 1111{ 1112 u_int32_t *p; 1113 union fw_self_id *self_id; 1114 u_int i, j, node, c_port = 0, i_branch = 0; 1115 1116 fc->sid_cnt = len /(sizeof(u_int32_t) * 2); 1117 fc->status = FWBUSINIT; 1118 fc->max_node = fc->nodeid & 0x3f; 1119 CSRARC(fc, NODE_IDS) = ((u_int32_t)fc->nodeid) << 16; 1120 fc->status = FWBUSCYMELECT; 1121 fc->topology_map->crc_len = 2; 1122 fc->topology_map->generation ++; 1123 fc->topology_map->self_id_count = 0; 1124 fc->topology_map->node_count = 0; 1125 fc->speed_map->generation ++; 1126 fc->speed_map->crc_len = 1 + (64*64 + 3) / 4; 1127 self_id = &fc->topology_map->self_id[0]; 1128 for(i = 0; i < fc->sid_cnt; i ++){ 1129 if (sid[1] != ~sid[0]) { 1130 printf("fw_sidrcv: invalid self-id packet\n"); 1131 sid += 2; 1132 continue; 1133 } 1134 *self_id = *((union fw_self_id *)sid); 1135 fc->topology_map->crc_len++; 1136 if(self_id->p0.sequel == 0){ 1137 fc->topology_map->node_count ++; 1138 c_port = 0; 1139#if 0 1140 fw_print_sid(sid[0]); 1141#endif 1142 node = self_id->p0.phy_id; 1143 if(fc->max_node < node){ 1144 fc->max_node = self_id->p0.phy_id; 1145 } 1146 /* XXX I'm not sure this is the right speed_map */ 1147 fc->speed_map->speed[node][node] 1148 = self_id->p0.phy_speed; 1149 for (j = 0; j < node; j ++) { 1150 fc->speed_map->speed[j][node] 1151 = fc->speed_map->speed[node][j] 1152 = min(fc->speed_map->speed[j][j], 1153 self_id->p0.phy_speed); 1154 } 1155 if ((fc->irm == -1 || self_id->p0.phy_id > fc->irm) && 1156 (self_id->p0.link_active && self_id->p0.contender)) { 1157 fc->irm = self_id->p0.phy_id; 1158 } 1159 if(self_id->p0.port0 >= 0x2){ 1160 c_port++; 1161 } 1162 if(self_id->p0.port1 >= 0x2){ 1163 c_port++; 1164 } 1165 if(self_id->p0.port2 >= 0x2){ 1166 c_port++; 1167 } 1168 } 1169 if(c_port > 2){ 1170 i_branch += (c_port - 2); 1171 } 1172 sid += 2; 1173 self_id++; 1174 fc->topology_map->self_id_count ++; 1175 } 1176 device_printf(fc->bdev, "%d nodes", fc->max_node + 1); 1177 /* CRC */ 1178 fc->topology_map->crc = fw_crc16( 1179 (u_int32_t *)&fc->topology_map->generation, 1180 fc->topology_map->crc_len * 4); 1181 fc->speed_map->crc = fw_crc16( 1182 (u_int32_t *)&fc->speed_map->generation, 1183 fc->speed_map->crc_len * 4); 1184 /* byteswap and copy to CSR */ 1185 p = (u_int32_t *)fc->topology_map; 1186 for (i = 0; i <= fc->topology_map->crc_len; i++) 1187 CSRARC(fc, TOPO_MAP + i * 4) = htonl(*p++); 1188 p = (u_int32_t *)fc->speed_map; 1189 CSRARC(fc, SPED_MAP) = htonl(*p++); 1190 CSRARC(fc, SPED_MAP + 4) = htonl(*p++); 1191 /* don't byte-swap u_int8_t array */ 1192 bcopy(p, &CSRARC(fc, SPED_MAP + 8), (fc->speed_map->crc_len - 1)*4); 1193 1194 fc->max_hop = fc->max_node - i_branch; 1195 printf(", maxhop <= %d", fc->max_hop); 1196 1197 if(fc->irm == -1 ){ 1198 printf(", Not found IRM capable node"); 1199 }else{ 1200 printf(", cable IRM = %d", fc->irm); 1201 if (fc->irm == fc->nodeid) 1202 printf(" (me)"); 1203 } 1204 printf("\n"); 1205 1206 if (try_bmr && (fc->irm != -1) && (CSRARC(fc, BUS_MGR_ID) == 0x3f)) { 1207 if (fc->irm == fc->nodeid) { 1208 fc->status = FWBUSMGRDONE; 1209 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, fc->irm); 1210 fw_bmr(fc); 1211 } else { 1212 fc->status = FWBUSMGRELECT; 1213 callout_reset(&fc->bmr_callout, hz/8, 1214 (void *)fw_try_bmr, (void *)fc); 1215 } 1216 } else 1217 fc->status = FWBUSMGRDONE; 1218 1219 callout_reset(&fc->busprobe_callout, hz/4, 1220 (void *)fw_bus_probe, (void *)fc); 1221} 1222 1223/* 1224 * To probe devices on the IEEE1394 bus. 1225 */ 1226static void 1227fw_bus_probe(struct firewire_comm *fc) 1228{ 1229 int s; 1230 struct fw_device *fwdev, *next; 1231 1232 s = splfw(); 1233 fc->status = FWBUSEXPLORE; 1234 fc->retry_count = 0; 1235 1236/* 1237 * Invalidate all devices, just after bus reset. Devices 1238 * to be removed has not been seen longer time. 1239 */ 1240 for (fwdev = STAILQ_FIRST(&fc->devices); fwdev != NULL; fwdev = next) { 1241 next = STAILQ_NEXT(fwdev, link); 1242 if (fwdev->status != FWDEVINVAL) { 1243 fwdev->status = FWDEVINVAL; 1244 fwdev->rcnt = 0; 1245 } else if(fwdev->rcnt < FW_MAXDEVRCNT) { 1246 fwdev->rcnt ++; 1247 } else { 1248 STAILQ_REMOVE(&fc->devices, fwdev, fw_device, link); 1249 free(fwdev, M_FW); 1250 } 1251 } 1252 fc->ongonode = 0; 1253 fc->ongoaddr = CSRROMOFF; 1254 fc->ongodev = NULL; 1255 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1256 fw_bus_explore(fc); 1257 splx(s); 1258} 1259 1260/* 1261 * To collect device informations on the IEEE1394 bus. 1262 */ 1263static void 1264fw_bus_explore(struct firewire_comm *fc ) 1265{ 1266 int err = 0; 1267 struct fw_device *fwdev, *pfwdev, *tfwdev; 1268 u_int32_t addr; 1269 struct fw_xfer *xfer; 1270 struct fw_pkt *fp; 1271 1272 if(fc->status != FWBUSEXPLORE) 1273 return; 1274 1275loop: 1276 if(fc->ongonode == fc->nodeid) fc->ongonode++; 1277 1278 if(fc->ongonode > fc->max_node) goto done; 1279 if(fc->ongonode >= 0x3f) goto done; 1280 1281 /* check link */ 1282 /* XXX we need to check phy_id first */ 1283 if (!fc->topology_map->self_id[fc->ongonode].p0.link_active) { 1284 if (firewire_debug) 1285 printf("node%d: link down\n", fc->ongonode); 1286 fc->ongonode++; 1287 goto loop; 1288 } 1289 1290 if(fc->ongoaddr <= CSRROMOFF && 1291 fc->ongoeui.hi == 0xffffffff && 1292 fc->ongoeui.lo == 0xffffffff ){ 1293 fc->ongoaddr = CSRROMOFF; 1294 addr = 0xf0000000 | fc->ongoaddr; 1295 }else if(fc->ongoeui.hi == 0xffffffff ){ 1296 fc->ongoaddr = CSRROMOFF + 0xc; 1297 addr = 0xf0000000 | fc->ongoaddr; 1298 }else if(fc->ongoeui.lo == 0xffffffff ){ 1299 fc->ongoaddr = CSRROMOFF + 0x10; 1300 addr = 0xf0000000 | fc->ongoaddr; 1301 }else if(fc->ongodev == NULL){ 1302 STAILQ_FOREACH(fwdev, &fc->devices, link) 1303 if (FW_EUI64_EQUAL(fwdev->eui, fc->ongoeui)) 1304 break; 1305 if(fwdev != NULL){ 1306 fwdev->dst = fc->ongonode; 1307 fwdev->status = FWDEVINIT; 1308 fc->ongodev = fwdev; 1309 fc->ongoaddr = CSRROMOFF; 1310 addr = 0xf0000000 | fc->ongoaddr; 1311 goto dorequest; 1312 } 1313 fwdev = malloc(sizeof(struct fw_device), M_FW, 1314 M_NOWAIT | M_ZERO); 1315 if(fwdev == NULL) 1316 return; 1317 fwdev->fc = fc; 1318 fwdev->rommax = 0; 1319 fwdev->dst = fc->ongonode; 1320 fwdev->eui.hi = fc->ongoeui.hi; fwdev->eui.lo = fc->ongoeui.lo; 1321 fwdev->status = FWDEVINIT; 1322 fwdev->speed = fc->speed_map->speed[fc->nodeid][fc->ongonode]; 1323 1324 pfwdev = NULL; 1325 STAILQ_FOREACH(tfwdev, &fc->devices, link) { 1326 if (tfwdev->eui.hi > fwdev->eui.hi || 1327 (tfwdev->eui.hi == fwdev->eui.hi && 1328 tfwdev->eui.lo > fwdev->eui.lo)) 1329 break; 1330 pfwdev = tfwdev; 1331 } 1332 if (pfwdev == NULL) 1333 STAILQ_INSERT_HEAD(&fc->devices, fwdev, link); 1334 else 1335 STAILQ_INSERT_AFTER(&fc->devices, pfwdev, fwdev, link); 1336 1337 device_printf(fc->bdev, "New %s device ID:%08x%08x\n", 1338 linkspeed[fwdev->speed], 1339 fc->ongoeui.hi, fc->ongoeui.lo); 1340 1341 fc->ongodev = fwdev; 1342 fc->ongoaddr = CSRROMOFF; 1343 addr = 0xf0000000 | fc->ongoaddr; 1344 }else{ 1345 addr = 0xf0000000 | fc->ongoaddr; 1346 } 1347dorequest: 1348#if 0 1349 xfer = asyreqq(fc, FWSPD_S100, 0, 0, 1350 ((FWLOCALBUS | fc->ongonode) << 16) | 0xffff , addr, 1351 fw_bus_explore_callback); 1352 if(xfer == NULL) goto done; 1353#else 1354 xfer = fw_xfer_alloc(M_FWXFER); 1355 if(xfer == NULL){ 1356 goto done; 1357 } 1358 xfer->send.spd = 0; 1359 fp = &xfer->send.hdr; 1360 fp->mode.rreqq.dest_hi = 0xffff; 1361 fp->mode.rreqq.tlrt = 0; 1362 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1363 fp->mode.rreqq.pri = 0; 1364 fp->mode.rreqq.src = 0; 1365 fp->mode.rreqq.dst = FWLOCALBUS | fc->ongonode; 1366 fp->mode.rreqq.dest_lo = addr; 1367 xfer->act.hand = fw_bus_explore_callback; 1368 1369 if (firewire_debug) 1370 printf("node%d: explore addr=0x%x\n", 1371 fc->ongonode, fc->ongoaddr); 1372 err = fw_asyreq(fc, -1, xfer); 1373 if(err){ 1374 fw_xfer_free( xfer); 1375 return; 1376 } 1377#endif 1378 return; 1379done: 1380 /* fw_attach_devs */ 1381 fc->status = FWBUSEXPDONE; 1382 if (firewire_debug) 1383 printf("bus_explore done\n"); 1384 fw_attach_dev(fc); 1385 return; 1386 1387} 1388 1389/* Portable Async. request read quad */ 1390struct fw_xfer * 1391asyreqq(struct firewire_comm *fc, u_int8_t spd, u_int8_t tl, u_int8_t rt, 1392 u_int32_t addr_hi, u_int32_t addr_lo, 1393 void (*hand) __P((struct fw_xfer*))) 1394{ 1395 struct fw_xfer *xfer; 1396 struct fw_pkt *fp; 1397 int err; 1398 1399 xfer = fw_xfer_alloc(M_FWXFER); 1400 if (xfer == NULL) 1401 return NULL; 1402 1403 xfer->send.spd = spd; /* XXX:min(spd, fc->spd) */ 1404 fp = &xfer->send.hdr; 1405 fp->mode.rreqq.dest_hi = addr_hi & 0xffff; 1406 if(tl & FWP_TL_VALID){ 1407 fp->mode.rreqq.tlrt = (tl & 0x3f) << 2; 1408 }else{ 1409 fp->mode.rreqq.tlrt = 0; 1410 } 1411 fp->mode.rreqq.tlrt |= rt & 0x3; 1412 fp->mode.rreqq.tcode = FWTCODE_RREQQ; 1413 fp->mode.rreqq.pri = 0; 1414 fp->mode.rreqq.src = 0; 1415 fp->mode.rreqq.dst = addr_hi >> 16; 1416 fp->mode.rreqq.dest_lo = addr_lo; 1417 xfer->act.hand = hand; 1418 1419 err = fw_asyreq(fc, -1, xfer); 1420 if(err){ 1421 fw_xfer_free( xfer); 1422 return NULL; 1423 } 1424 return xfer; 1425} 1426 1427/* 1428 * Callback for the IEEE1394 bus information collection. 1429 */ 1430static void 1431fw_bus_explore_callback(struct fw_xfer *xfer) 1432{ 1433 struct firewire_comm *fc; 1434 struct fw_pkt *sfp,*rfp; 1435 struct csrhdr *chdr; 1436 struct csrdir *csrd; 1437 struct csrreg *csrreg; 1438 u_int32_t offset; 1439 1440 1441 if(xfer == NULL) { 1442 printf("xfer == NULL\n"); 1443 return; 1444 } 1445 fc = xfer->fc; 1446 1447 if (firewire_debug) 1448 printf("node%d: callback addr=0x%x\n", 1449 fc->ongonode, fc->ongoaddr); 1450 1451 if(xfer->resp != 0){ 1452 printf("node%d: resp=%d addr=0x%x\n", 1453 fc->ongonode, xfer->resp, fc->ongoaddr); 1454 goto errnode; 1455 } 1456 1457 sfp = &xfer->send.hdr; 1458 rfp = &xfer->recv.hdr; 1459#if 0 1460 { 1461 u_int32_t *qld; 1462 int i; 1463 qld = (u_int32_t *)xfer->recv.buf; 1464 printf("len:%d\n", xfer->recv.len); 1465 for( i = 0 ; i <= xfer->recv.len && i < 32; i+= 4){ 1466 printf("0x%08x ", rfp->mode.ld[i/4]); 1467 if((i % 16) == 15) printf("\n"); 1468 } 1469 if((i % 16) != 15) printf("\n"); 1470 } 1471#endif 1472 if(fc->ongodev == NULL){ 1473 if(sfp->mode.rreqq.dest_lo == (0xf0000000 | CSRROMOFF)){ 1474 rfp->mode.rresq.data = ntohl(rfp->mode.rresq.data); 1475 chdr = (struct csrhdr *)(&rfp->mode.rresq.data); 1476/* If CSR is minimal confinguration, more investgation is not needed. */ 1477 if(chdr->info_len == 1){ 1478 if (firewire_debug) 1479 printf("node%d: minimal config\n", 1480 fc->ongonode); 1481 goto nextnode; 1482 }else{ 1483 fc->ongoaddr = CSRROMOFF + 0xc; 1484 } 1485 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0xc))){ 1486 fc->ongoeui.hi = ntohl(rfp->mode.rresq.data); 1487 fc->ongoaddr = CSRROMOFF + 0x10; 1488 }else if(sfp->mode.rreqq.dest_lo == (0xf0000000 |(CSRROMOFF + 0x10))){ 1489 fc->ongoeui.lo = ntohl(rfp->mode.rresq.data); 1490 if (fc->ongoeui.hi == 0 && fc->ongoeui.lo == 0) { 1491 if (firewire_debug) 1492 printf("node%d: eui64 is zero.\n", 1493 fc->ongonode); 1494 goto nextnode; 1495 } 1496 fc->ongoaddr = CSRROMOFF; 1497 } 1498 }else{ 1499 if (fc->ongoaddr == CSRROMOFF && 1500 fc->ongodev->csrrom[0] == ntohl(rfp->mode.rresq.data)) { 1501 fc->ongodev->status = FWDEVATTACHED; 1502 goto nextnode; 1503 } 1504 fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4] = ntohl(rfp->mode.rresq.data); 1505 if(fc->ongoaddr > fc->ongodev->rommax){ 1506 fc->ongodev->rommax = fc->ongoaddr; 1507 } 1508 csrd = SLIST_FIRST(&fc->ongocsr); 1509 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1510 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1511 offset = CSRROMOFF; 1512 }else{ 1513 chdr = (struct csrhdr *)&fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]; 1514 offset = csrd->off; 1515 } 1516 if(fc->ongoaddr > (CSRROMOFF + 0x14) && fc->ongoaddr != offset){ 1517 csrreg = (struct csrreg *)&fc->ongodev->csrrom[(fc->ongoaddr - CSRROMOFF)/4]; 1518 if( csrreg->key == 0x81 || csrreg->key == 0xd1){ 1519 csrd = SLIST_FIRST(&fc->csrfree); 1520 if(csrd == NULL){ 1521 goto nextnode; 1522 }else{ 1523 csrd->ongoaddr = fc->ongoaddr; 1524 fc->ongoaddr += csrreg->val * 4; 1525 csrd->off = fc->ongoaddr; 1526 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1527 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1528 goto nextaddr; 1529 } 1530 } 1531 } 1532 fc->ongoaddr += 4; 1533 if(((fc->ongoaddr - offset)/4 > chdr->crc_len) && 1534 (fc->ongodev->rommax < 0x414)){ 1535 if(fc->ongodev->rommax <= 0x414){ 1536 csrd = SLIST_FIRST(&fc->csrfree); 1537 if(csrd == NULL) goto nextnode; 1538 csrd->off = fc->ongoaddr; 1539 csrd->ongoaddr = fc->ongoaddr; 1540 SLIST_REMOVE_HEAD(&fc->csrfree, link); 1541 SLIST_INSERT_HEAD(&fc->ongocsr, csrd, link); 1542 } 1543 goto nextaddr; 1544 } 1545 1546 while(((fc->ongoaddr - offset)/4 > chdr->crc_len)){ 1547 if(csrd == NULL){ 1548 goto nextnode; 1549 }; 1550 fc->ongoaddr = csrd->ongoaddr + 4; 1551 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1552 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1553 csrd = SLIST_FIRST(&fc->ongocsr); 1554 if((csrd = SLIST_FIRST(&fc->ongocsr)) == NULL){ 1555 chdr = (struct csrhdr *)(fc->ongodev->csrrom); 1556 offset = CSRROMOFF; 1557 }else{ 1558 chdr = (struct csrhdr *)&(fc->ongodev->csrrom[(csrd->off - CSRROMOFF)/4]); 1559 offset = csrd->off; 1560 } 1561 } 1562 if((fc->ongoaddr - CSRROMOFF) > CSRROMSIZE){ 1563 goto nextnode; 1564 } 1565 } 1566nextaddr: 1567 fw_xfer_free( xfer); 1568 fw_bus_explore(fc); 1569 return; 1570errnode: 1571 fc->retry_count++; 1572 if (fc->ongodev != NULL) 1573 fc->ongodev->status = FWDEVINVAL; 1574nextnode: 1575 fw_xfer_free( xfer); 1576 fc->ongonode++; 1577/* housekeeping work space */ 1578 fc->ongoaddr = CSRROMOFF; 1579 fc->ongodev = NULL; 1580 fc->ongoeui.hi = 0xffffffff; fc->ongoeui.lo = 0xffffffff; 1581 while((csrd = SLIST_FIRST(&fc->ongocsr)) != NULL){ 1582 SLIST_REMOVE_HEAD(&fc->ongocsr, link); 1583 SLIST_INSERT_HEAD(&fc->csrfree, csrd, link); 1584 } 1585 fw_bus_explore(fc); 1586 return; 1587} 1588 1589/* 1590 * To attach sub-devices layer onto IEEE1394 bus. 1591 */ 1592static void 1593fw_attach_dev(struct firewire_comm *fc) 1594{ 1595 struct fw_device *fwdev; 1596 struct fw_xfer *xfer; 1597 int i, err; 1598 device_t *devlistp; 1599 int devcnt; 1600 struct firewire_dev_comm *fdc; 1601 1602 STAILQ_FOREACH(fwdev, &fc->devices, link) 1603 if (fwdev->status == FWDEVINIT) 1604 fwdev->status = FWDEVATTACHED; 1605 1606 err = device_get_children(fc->bdev, &devlistp, &devcnt); 1607 if( err != 0 ) 1608 return; 1609 for( i = 0 ; i < devcnt ; i++){ 1610 if (device_get_state(devlistp[i]) >= DS_ATTACHED) { 1611 fdc = device_get_softc(devlistp[i]); 1612 if (fdc->post_explore != NULL) 1613 fdc->post_explore(fdc); 1614 } 1615 } 1616 free(devlistp, M_TEMP); 1617 1618 /* call pending handlers */ 1619 i = 0; 1620 while ((xfer = STAILQ_FIRST(&fc->pending))) { 1621 STAILQ_REMOVE_HEAD(&fc->pending, link); 1622 i++; 1623 if (xfer->act.hand) 1624 xfer->act.hand(xfer); 1625 } 1626 if (i > 0) 1627 printf("fw_attach_dev: %d pending handlers called\n", i); 1628 if (fc->retry_count > 0) { 1629 printf("probe failed for %d node\n", fc->retry_count); 1630#if 0 1631 callout_reset(&fc->retry_probe_callout, hz*2, 1632 (void *)fc->ibr, (void *)fc); 1633#endif 1634 } 1635 return; 1636} 1637 1638/* 1639 * To allocate uniq transaction label. 1640 */ 1641static int 1642fw_get_tlabel(struct firewire_comm *fc, struct fw_xfer *xfer) 1643{ 1644 u_int i; 1645 struct tlabel *tl, *tmptl; 1646 int s; 1647 static u_int32_t label = 0; 1648 1649 s = splfw(); 1650 for( i = 0 ; i < 0x40 ; i ++){ 1651 label = (label + 1) & 0x3f; 1652 for(tmptl = STAILQ_FIRST(&fc->tlabels[label]); 1653 tmptl != NULL; tmptl = STAILQ_NEXT(tmptl, link)){ 1654 if (tmptl->xfer->send.hdr.mode.hdr.dst == 1655 xfer->send.hdr.mode.hdr.dst) 1656 break; 1657 } 1658 if(tmptl == NULL) { 1659 tl = malloc(sizeof(struct tlabel),M_FW,M_NOWAIT); 1660 if (tl == NULL) { 1661 splx(s); 1662 return (-1); 1663 } 1664 tl->xfer = xfer; 1665 STAILQ_INSERT_TAIL(&fc->tlabels[label], tl, link); 1666 splx(s); 1667 if (firewire_debug > 1) 1668 printf("fw_get_tlabel: dst=%d tl=%d\n", 1669 xfer->send.hdr.mode.hdr.dst, label); 1670 return(label); 1671 } 1672 } 1673 splx(s); 1674 1675 printf("fw_get_tlabel: no free tlabel\n"); 1676 return(-1); 1677} 1678 1679static void 1680fw_rcv_copy(struct fw_rcv_buf *rb) 1681{ 1682 struct fw_pkt *pkt; 1683 u_char *p; 1684 struct tcode_info *tinfo; 1685 u_int res, i, len, plen; 1686 1687 rb->xfer->recv.spd -= rb->spd; 1688 1689 pkt = (struct fw_pkt *)rb->vec->iov_base; 1690 tinfo = &rb->fc->tcode[pkt->mode.hdr.tcode]; 1691 1692 /* Copy header */ 1693 p = (u_char *)&rb->xfer->recv.hdr; 1694 bcopy(rb->vec->iov_base, p, tinfo->hdr_len); 1695 (u_char *)rb->vec->iov_base += tinfo->hdr_len; 1696 rb->vec->iov_len -= tinfo->hdr_len; 1697 1698 /* Copy payload */ 1699 p = (u_char *)rb->xfer->recv.payload; 1700 res = rb->xfer->recv.pay_len; 1701 1702 /* special handling for RRESQ */ 1703 if (pkt->mode.hdr.tcode == FWTCODE_RRESQ && 1704 p != NULL && res >= sizeof(u_int32_t)) { 1705 *(u_int32_t *)p = pkt->mode.rresq.data; 1706 rb->xfer->recv.pay_len = sizeof(u_int32_t); 1707 return; 1708 } 1709 1710 if ((tinfo->flag & FWTI_BLOCK_ASY) == 0) 1711 return; 1712 1713 plen = pkt->mode.rresb.len; 1714 1715 for (i = 0; i < rb->nvec; i++, rb->vec++) { 1716 len = MIN(rb->vec->iov_len, plen); 1717 if (res < len) { 1718 printf("rcv buffer(%d) is %d bytes short.\n", 1719 rb->xfer->recv.pay_len, len - res); 1720 len = res; 1721 } 1722 bcopy(rb->vec->iov_base, p, len); 1723 p += len; 1724 res -= len; 1725 plen -= len; 1726 if (res == 0 || plen == 0) 1727 break; 1728 } 1729 rb->xfer->recv.pay_len -= res; 1730 1731} 1732 1733/* 1734 * Generic packet receving process. 1735 */ 1736void 1737fw_rcv(struct fw_rcv_buf *rb) 1738{ 1739 struct fw_pkt *fp, *resfp; 1740 struct fw_bind *bind; 1741 int tcode, s; 1742 int i, len, oldstate; 1743#if 0 1744 { 1745 u_int32_t *qld; 1746 int i; 1747 qld = (u_int32_t *)buf; 1748 printf("spd %d len:%d\n", spd, len); 1749 for( i = 0 ; i <= len && i < 32; i+= 4){ 1750 printf("0x%08x ", ntohl(qld[i/4])); 1751 if((i % 16) == 15) printf("\n"); 1752 } 1753 if((i % 16) != 15) printf("\n"); 1754 } 1755#endif 1756 fp = (struct fw_pkt *)rb->vec[0].iov_base; 1757 tcode = fp->mode.common.tcode; 1758 switch (tcode) { 1759 case FWTCODE_WRES: 1760 case FWTCODE_RRESQ: 1761 case FWTCODE_RRESB: 1762 case FWTCODE_LRES: 1763 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1764 fp->mode.hdr.tlrt >> 2); 1765 if(rb->xfer == NULL) { 1766 printf("fw_rcv: unknown response " 1767 "tcode=%d src=0x%x tl=0x%x rt=%d data=0x%x\n", 1768 tcode, 1769 fp->mode.hdr.src, 1770 fp->mode.hdr.tlrt >> 2, 1771 fp->mode.hdr.tlrt & 3, 1772 fp->mode.rresq.data); 1773#if 1 1774 printf("try ad-hoc work around!!\n"); 1775 rb->xfer = fw_tl2xfer(rb->fc, fp->mode.hdr.src, 1776 (fp->mode.hdr.tlrt >> 2)^3); 1777 if (rb->xfer == NULL) { 1778 printf("no use...\n"); 1779 goto err; 1780 } 1781#else 1782 goto err; 1783#endif 1784 } 1785 fw_rcv_copy(rb); 1786 if (rb->xfer->recv.hdr.mode.wres.rtcode != RESP_CMP) 1787 rb->xfer->resp = EIO; 1788 else 1789 rb->xfer->resp = 0; 1790 /* make sure the packet is drained in AT queue */ 1791 oldstate = rb->xfer->state; 1792 rb->xfer->state = FWXF_RCVD; 1793 switch (oldstate) { 1794 case FWXF_SENT: 1795 fw_xfer_done(rb->xfer); 1796 break; 1797 case FWXF_START: 1798#if 0 1799 if (firewire_debug) 1800 printf("not sent yet tl=%x\n", rb->xfer->tl); 1801#endif 1802 break; 1803 default: 1804 printf("unexpected state %d\n", rb->xfer->state); 1805 } 1806 return; 1807 case FWTCODE_WREQQ: 1808 case FWTCODE_WREQB: 1809 case FWTCODE_RREQQ: 1810 case FWTCODE_RREQB: 1811 case FWTCODE_LREQ: 1812 bind = fw_bindlookup(rb->fc, fp->mode.rreqq.dest_hi, 1813 fp->mode.rreqq.dest_lo); 1814 if(bind == NULL){ 1815#if __FreeBSD_version >= 500000 1816 printf("Unknown service addr 0x%04x:0x%08x tcode=%x src=0x%x data=%x\n", 1817#else 1818 printf("Unknown service addr 0x%04x:0x%08x tcode=%x src=0x%x data=%lx\n", 1819#endif 1820 fp->mode.wreqq.dest_hi, 1821 fp->mode.wreqq.dest_lo, 1822 tcode, 1823 fp->mode.hdr.src, 1824 ntohl(fp->mode.wreqq.data)); 1825 if (rb->fc->status == FWBUSRESET) { 1826 printf("fw_rcv: cannot respond(bus reset)!\n"); 1827 goto err; 1828 } 1829 rb->xfer = fw_xfer_alloc(M_FWXFER); 1830 if(rb->xfer == NULL){ 1831 return; 1832 } 1833 rb->xfer->send.spd = rb->spd; 1834 rb->xfer->send.pay_len = 0; 1835 resfp = &rb->xfer->send.hdr; 1836 switch (tcode) { 1837 case FWTCODE_WREQQ: 1838 case FWTCODE_WREQB: 1839 resfp->mode.hdr.tcode = FWTCODE_WRES; 1840 break; 1841 case FWTCODE_RREQQ: 1842 resfp->mode.hdr.tcode = FWTCODE_RRESQ; 1843 break; 1844 case FWTCODE_RREQB: 1845 resfp->mode.hdr.tcode = FWTCODE_RRESB; 1846 break; 1847 case FWTCODE_LREQ: 1848 resfp->mode.hdr.tcode = FWTCODE_LRES; 1849 break; 1850 } 1851 resfp->mode.hdr.dst = fp->mode.hdr.src; 1852 resfp->mode.hdr.tlrt = fp->mode.hdr.tlrt; 1853 resfp->mode.hdr.pri = fp->mode.hdr.pri; 1854 resfp->mode.rresb.rtcode = RESP_ADDRESS_ERROR; 1855 resfp->mode.rresb.extcode = 0; 1856 resfp->mode.rresb.len = 0; 1857/* 1858 rb->xfer->act.hand = fw_asy_callback; 1859*/ 1860 rb->xfer->act.hand = fw_xfer_free; 1861 if(fw_asyreq(rb->fc, -1, rb->xfer)){ 1862 fw_xfer_free(rb->xfer); 1863 return; 1864 } 1865 goto err; 1866 } 1867 len = 0; 1868 for (i = 0; i < rb->nvec; i ++) 1869 len += rb->vec[i].iov_len; 1870 switch(bind->act_type){ 1871 case FWACT_XFER: 1872 /* splfw()?? */ 1873 rb->xfer = STAILQ_FIRST(&bind->xferlist); 1874 if (rb->xfer == NULL) { 1875 printf("Discard a packet for this bind.\n"); 1876 goto err; 1877 } 1878 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 1879 fw_rcv_copy(rb); 1880 if (rb->fc->status != FWBUSRESET) 1881 rb->xfer->act.hand(rb->xfer); 1882 else 1883 STAILQ_INSERT_TAIL(&rb->fc->pending, 1884 rb->xfer, link); 1885 return; 1886 break; 1887 case FWACT_CH: 1888 if(rb->fc->ir[bind->sub]->queued >= 1889 rb->fc->ir[bind->sub]->maxq){ 1890 device_printf(rb->fc->bdev, 1891 "Discard a packet %x %d\n", 1892 bind->sub, 1893 rb->fc->ir[bind->sub]->queued); 1894 goto err; 1895 } 1896 rb->xfer = STAILQ_FIRST(&bind->xferlist); 1897 if (rb->xfer == NULL) { 1898 printf("Discard packet for this bind\n"); 1899 goto err; 1900 } 1901 STAILQ_REMOVE_HEAD(&bind->xferlist, link); 1902 fw_rcv_copy(rb); 1903 s = splfw(); 1904 rb->fc->ir[bind->sub]->queued++; 1905 STAILQ_INSERT_TAIL(&rb->fc->ir[bind->sub]->q, 1906 rb->xfer, link); 1907 splx(s); 1908 1909 wakeup((caddr_t)rb->fc->ir[bind->sub]); 1910 1911 return; 1912 break; 1913 default: 1914 goto err; 1915 break; 1916 } 1917 break; 1918#if 0 /* shouldn't happen ?? or for GASP */ 1919 case FWTCODE_STREAM: 1920 { 1921 struct fw_xferq *xferq; 1922 1923 xferq = rb->fc->ir[sub]; 1924#if 0 1925 printf("stream rcv dma %d len %d off %d spd %d\n", 1926 sub, len, off, spd); 1927#endif 1928 if(xferq->queued >= xferq->maxq) { 1929 printf("receive queue is full\n"); 1930 goto err; 1931 } 1932 /* XXX get xfer from xfer queue, we don't need copy for 1933 per packet mode */ 1934 rb->xfer = fw_xfer_alloc_buf(M_FWXFER, 0, /* XXX */ 1935 vec[0].iov_len); 1936 if (rb->xfer == NULL) goto err; 1937 fw_rcv_copy(rb) 1938 s = splfw(); 1939 xferq->queued++; 1940 STAILQ_INSERT_TAIL(&xferq->q, rb->xfer, link); 1941 splx(s); 1942 sc = device_get_softc(rb->fc->bdev); 1943#if __FreeBSD_version >= 500000 1944 if (SEL_WAITING(&xferq->rsel)) 1945#else 1946 if (&xferq->rsel.si_pid != 0) 1947#endif 1948 selwakeup(&xferq->rsel); 1949 if (xferq->flag & FWXFERQ_WAKEUP) { 1950 xferq->flag &= ~FWXFERQ_WAKEUP; 1951 wakeup((caddr_t)xferq); 1952 } 1953 if (xferq->flag & FWXFERQ_HANDLER) { 1954 xferq->hand(xferq); 1955 } 1956 return; 1957 break; 1958 } 1959#endif 1960 default: 1961 printf("fw_rcv: unknow tcode %d\n", tcode); 1962 break; 1963 } 1964err: 1965 return; 1966} 1967 1968/* 1969 * Post process for Bus Manager election process. 1970 */ 1971static void 1972fw_try_bmr_callback(struct fw_xfer *xfer) 1973{ 1974 struct firewire_comm *fc; 1975 int bmr; 1976 1977 if (xfer == NULL) 1978 return; 1979 fc = xfer->fc; 1980 if (xfer->resp != 0) 1981 goto error; 1982 if (xfer->recv.payload == NULL) 1983 goto error; 1984 if (xfer->recv.hdr.mode.lres.rtcode != FWRCODE_COMPLETE) 1985 goto error; 1986 1987 bmr = ntohl(xfer->recv.payload[0]); 1988 if (bmr == 0x3f) 1989 bmr = fc->nodeid; 1990 1991 CSRARC(fc, BUS_MGR_ID) = fc->set_bmr(fc, bmr & 0x3f); 1992 fw_xfer_free_buf(xfer); 1993 fw_bmr(fc); 1994 return; 1995 1996error: 1997 device_printf(fc->bdev, "bus manager election failed\n"); 1998 fw_xfer_free_buf(xfer); 1999} 2000 2001 2002/* 2003 * To candidate Bus Manager election process. 2004 */ 2005static void 2006fw_try_bmr(void *arg) 2007{ 2008 struct fw_xfer *xfer; 2009 struct firewire_comm *fc = (struct firewire_comm *)arg; 2010 struct fw_pkt *fp; 2011 int err = 0; 2012 2013 xfer = fw_xfer_alloc_buf(M_FWXFER, 8, 4); 2014 if(xfer == NULL){ 2015 return; 2016 } 2017 xfer->send.spd = 0; 2018 fc->status = FWBUSMGRELECT; 2019 2020 fp = &xfer->send.hdr; 2021 fp->mode.lreq.dest_hi = 0xffff; 2022 fp->mode.lreq.tlrt = 0; 2023 fp->mode.lreq.tcode = FWTCODE_LREQ; 2024 fp->mode.lreq.pri = 0; 2025 fp->mode.lreq.src = 0; 2026 fp->mode.lreq.len = 8; 2027 fp->mode.lreq.extcode = EXTCODE_CMP_SWAP; 2028 fp->mode.lreq.dst = FWLOCALBUS | fc->irm; 2029 fp->mode.lreq.dest_lo = 0xf0000000 | BUS_MGR_ID; 2030 xfer->send.payload[0] = htonl(0x3f); 2031 xfer->send.payload[1] = htonl(fc->nodeid); 2032 xfer->act.hand = fw_try_bmr_callback; 2033 2034 err = fw_asyreq(fc, -1, xfer); 2035 if(err){ 2036 fw_xfer_free_buf(xfer); 2037 return; 2038 } 2039 return; 2040} 2041 2042#ifdef FW_VMACCESS 2043/* 2044 * Software implementation for physical memory block access. 2045 * XXX:Too slow, usef for debug purpose only. 2046 */ 2047static void 2048fw_vmaccess(struct fw_xfer *xfer){ 2049 struct fw_pkt *rfp, *sfp = NULL; 2050 u_int32_t *ld = (u_int32_t *)xfer->recv.buf; 2051 2052 printf("vmaccess spd:%2x len:%03x data:%08x %08x %08x %08x\n", 2053 xfer->spd, xfer->recv.len, ntohl(ld[0]), ntohl(ld[1]), ntohl(ld[2]), ntohl(ld[3])); 2054 printf("vmaccess data:%08x %08x %08x %08x\n", ntohl(ld[4]), ntohl(ld[5]), ntohl(ld[6]), ntohl(ld[7])); 2055 if(xfer->resp != 0){ 2056 fw_xfer_free( xfer); 2057 return; 2058 } 2059 if(xfer->recv.buf == NULL){ 2060 fw_xfer_free( xfer); 2061 return; 2062 } 2063 rfp = (struct fw_pkt *)xfer->recv.buf; 2064 switch(rfp->mode.hdr.tcode){ 2065 /* XXX need fix for 64bit arch */ 2066 case FWTCODE_WREQB: 2067 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2068 xfer->send.len = 12; 2069 sfp = (struct fw_pkt *)xfer->send.buf; 2070 bcopy(rfp->mode.wreqb.payload, 2071 (caddr_t)ntohl(rfp->mode.wreqb.dest_lo), ntohs(rfp->mode.wreqb.len)); 2072 sfp->mode.wres.tcode = FWTCODE_WRES; 2073 sfp->mode.wres.rtcode = 0; 2074 break; 2075 case FWTCODE_WREQQ: 2076 xfer->send.buf = malloc(12, M_FW, M_NOWAIT); 2077 xfer->send.len = 12; 2078 sfp->mode.wres.tcode = FWTCODE_WRES; 2079 *((u_int32_t *)(ntohl(rfp->mode.wreqb.dest_lo))) = rfp->mode.wreqq.data; 2080 sfp->mode.wres.rtcode = 0; 2081 break; 2082 case FWTCODE_RREQB: 2083 xfer->send.buf = malloc(16 + rfp->mode.rreqb.len, M_FW, M_NOWAIT); 2084 xfer->send.len = 16 + ntohs(rfp->mode.rreqb.len); 2085 sfp = (struct fw_pkt *)xfer->send.buf; 2086 bcopy((caddr_t)ntohl(rfp->mode.rreqb.dest_lo), 2087 sfp->mode.rresb.payload, (u_int16_t)ntohs(rfp->mode.rreqb.len)); 2088 sfp->mode.rresb.tcode = FWTCODE_RRESB; 2089 sfp->mode.rresb.len = rfp->mode.rreqb.len; 2090 sfp->mode.rresb.rtcode = 0; 2091 sfp->mode.rresb.extcode = 0; 2092 break; 2093 case FWTCODE_RREQQ: 2094 xfer->send.buf = malloc(16, M_FW, M_NOWAIT); 2095 xfer->send.len = 16; 2096 sfp = (struct fw_pkt *)xfer->send.buf; 2097 sfp->mode.rresq.data = *(u_int32_t *)(ntohl(rfp->mode.rreqq.dest_lo)); 2098 sfp->mode.wres.tcode = FWTCODE_RRESQ; 2099 sfp->mode.rresb.rtcode = 0; 2100 break; 2101 default: 2102 fw_xfer_free( xfer); 2103 return; 2104 } 2105 sfp->mode.hdr.dst = rfp->mode.hdr.src; 2106 xfer->dst = ntohs(rfp->mode.hdr.src); 2107 xfer->act.hand = fw_xfer_free; 2108 xfer->retry_req = fw_asybusy; 2109 2110 sfp->mode.hdr.tlrt = rfp->mode.hdr.tlrt; 2111 sfp->mode.hdr.pri = 0; 2112 2113 fw_asyreq(xfer->fc, -1, xfer); 2114/**/ 2115 return; 2116} 2117#endif 2118 2119/* 2120 * CRC16 check-sum for IEEE1394 register blocks. 2121 */ 2122u_int16_t 2123fw_crc16(u_int32_t *ptr, u_int32_t len){ 2124 u_int32_t i, sum, crc = 0; 2125 int shift; 2126 len = (len + 3) & ~3; 2127 for(i = 0 ; i < len ; i+= 4){ 2128 for( shift = 28 ; shift >= 0 ; shift -= 4){ 2129 sum = ((crc >> 12) ^ (ptr[i/4] >> shift)) & 0xf; 2130 crc = (crc << 4) ^ ( sum << 12 ) ^ ( sum << 5) ^ sum; 2131 } 2132 crc &= 0xffff; 2133 } 2134 return((u_int16_t) crc); 2135} 2136 2137static int 2138fw_bmr(struct firewire_comm *fc) 2139{ 2140 struct fw_device fwdev; 2141 union fw_self_id *self_id; 2142 int cmstr; 2143 u_int32_t quad; 2144 2145 /* Check to see if the current root node is cycle master capable */ 2146 self_id = &fc->topology_map->self_id[fc->max_node]; 2147 if (fc->max_node > 0) { 2148 /* XXX check cmc bit of businfo block rather than contender */ 2149 if (self_id->p0.link_active && self_id->p0.contender) 2150 cmstr = fc->max_node; 2151 else { 2152 device_printf(fc->bdev, 2153 "root node is not cycle master capable\n"); 2154 /* XXX shall we be the cycle master? */ 2155 cmstr = fc->nodeid; 2156 /* XXX need bus reset */ 2157 } 2158 } else 2159 cmstr = -1; 2160 2161 device_printf(fc->bdev, "bus manager %d ", CSRARC(fc, BUS_MGR_ID)); 2162 if(CSRARC(fc, BUS_MGR_ID) != fc->nodeid) { 2163 /* We are not the bus manager */ 2164 printf("\n"); 2165 return(0); 2166 } 2167 printf("(me)\n"); 2168 2169 /* Optimize gapcount */ 2170 if(fc->max_hop <= MAX_GAPHOP ) 2171 fw_phy_config(fc, cmstr, gap_cnt[fc->max_hop]); 2172 /* If we are the cycle master, nothing to do */ 2173 if (cmstr == fc->nodeid || cmstr == -1) 2174 return 0; 2175 /* Bus probe has not finished, make dummy fwdev for cmstr */ 2176 bzero(&fwdev, sizeof(fwdev)); 2177 fwdev.fc = fc; 2178 fwdev.dst = cmstr; 2179 fwdev.speed = 0; 2180 fwdev.maxrec = 8; /* 512 */ 2181 fwdev.status = FWDEVINIT; 2182 /* Set cmstr bit on the cycle master */ 2183 quad = htonl(1 << 8); 2184 fwmem_write_quad(&fwdev, NULL, 0/*spd*/, 2185 0xffff, 0xf0000000 | STATE_SET, &quad, fw_asy_callback_free); 2186 2187 return 0; 2188} 2189 2190static int 2191fw_modevent(module_t mode, int type, void *data) 2192{ 2193 int err = 0; 2194#if __FreeBSD_version >= 500000 2195 static eventhandler_tag fwdev_ehtag = NULL; 2196#endif 2197 2198 switch (type) { 2199 case MOD_LOAD: 2200#if __FreeBSD_version >= 500000 2201 fwdev_ehtag = EVENTHANDLER_REGISTER(dev_clone, 2202 fwdev_clone, 0, 1000); 2203#endif 2204 break; 2205 case MOD_UNLOAD: 2206#if __FreeBSD_version >= 500000 2207 if (fwdev_ehtag != NULL) 2208 EVENTHANDLER_DEREGISTER(dev_clone, fwdev_ehtag); 2209#endif 2210 break; 2211 case MOD_SHUTDOWN: 2212 break; 2213 } 2214 return (err); 2215} 2216 2217 2218DRIVER_MODULE(firewire,fwohci,firewire_driver,firewire_devclass,fw_modevent,0); 2219MODULE_VERSION(firewire, 1); 2220