Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/dev/firewire/fwdev.c
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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: releng/8.4/sys/dev/firewire/fwdev.c 194687 2009-06-23 09:02:24Z rdivacky $ 35 * 36 */ 37 38 #include <sys/param.h> 39 #include <sys/systm.h> 40 #include <sys/types.h> 41 #include <sys/mbuf.h> 42 #if defined(__DragonFly__) || __FreeBSD_version < 500000 43 #include <sys/buf.h> 44 #else 45 #include <sys/bio.h> 46 #endif 47 48 #include <sys/kernel.h> 49 #include <sys/malloc.h> 50 #include <sys/conf.h> 51 #include <sys/poll.h> 52 53 #include <sys/bus.h> 54 #include <sys/ctype.h> 55 #include <machine/bus.h> 56 57 #include <sys/ioccom.h> 58 59 #ifdef __DragonFly__ 60 #include "firewire.h" 61 #include "firewirereg.h" 62 #include "fwdma.h" 63 #include "fwmem.h" 64 #include "iec68113.h" 65 #else 66 #include <dev/firewire/firewire.h> 67 #include <dev/firewire/firewirereg.h> 68 #include <dev/firewire/fwdma.h> 69 #include <dev/firewire/fwmem.h> 70 #include <dev/firewire/iec68113.h> 71 #endif 72 73 #define FWNODE_INVAL 0xffff 74 75 static d_open_t fw_open; 76 static d_close_t fw_close; 77 static d_ioctl_t fw_ioctl; 78 static d_poll_t fw_poll; 79 static d_read_t fw_read; /* for Isochronous packet */ 80 static d_write_t fw_write; 81 static d_mmap_t fw_mmap; 82 static d_strategy_t fw_strategy; 83 84 struct cdevsw firewire_cdevsw = { 85 #ifdef __DragonFly__ 86 #define CDEV_MAJOR 127 87 "fw", CDEV_MAJOR, D_MEM, NULL, 0, 88 fw_open, fw_close, fw_read, fw_write, fw_ioctl, 89 fw_poll, fw_mmap, fw_strategy, nodump, nopsize, 90 #elif __FreeBSD_version >= 500104 91 .d_version = D_VERSION, 92 .d_open = fw_open, 93 .d_close = fw_close, 94 .d_read = fw_read, 95 .d_write = fw_write, 96 .d_ioctl = fw_ioctl, 97 .d_poll = fw_poll, 98 .d_mmap = fw_mmap, 99 .d_strategy = fw_strategy, 100 .d_name = "fw", 101 .d_flags = D_MEM 102 #else 103 #define CDEV_MAJOR 127 104 fw_open, fw_close, fw_read, fw_write, fw_ioctl, 105 fw_poll, fw_mmap, fw_strategy, "fw", CDEV_MAJOR, 106 nodump, nopsize, D_MEM, -1 107 #endif 108 }; 109 110 struct fw_drv1 { 111 struct firewire_comm *fc; 112 struct fw_xferq *ir; 113 struct fw_xferq *it; 114 struct fw_isobufreq bufreq; 115 STAILQ_HEAD(, fw_bind) binds; 116 STAILQ_HEAD(, fw_xfer) rq; 117 }; 118 119 static int 120 fwdev_allocbuf(struct firewire_comm *fc, struct fw_xferq *q, 121 struct fw_bufspec *b) 122 { 123 int i; 124 125 if (q->flag & (FWXFERQ_RUNNING | FWXFERQ_EXTBUF)) 126 return(EBUSY); 127 128 q->bulkxfer = (struct fw_bulkxfer *) malloc( 129 sizeof(struct fw_bulkxfer) * b->nchunk, 130 M_FW, M_WAITOK); 131 if (q->bulkxfer == NULL) 132 return(ENOMEM); 133 134 b->psize = roundup2(b->psize, sizeof(uint32_t)); 135 q->buf = fwdma_malloc_multiseg(fc, sizeof(uint32_t), 136 b->psize, b->nchunk * b->npacket, BUS_DMA_WAITOK); 137 138 if (q->buf == NULL) { 139 free(q->bulkxfer, M_FW); 140 q->bulkxfer = NULL; 141 return(ENOMEM); 142 } 143 q->bnchunk = b->nchunk; 144 q->bnpacket = b->npacket; 145 q->psize = (b->psize + 3) & ~3; 146 q->queued = 0; 147 148 STAILQ_INIT(&q->stvalid); 149 STAILQ_INIT(&q->stfree); 150 STAILQ_INIT(&q->stdma); 151 q->stproc = NULL; 152 153 for(i = 0 ; i < q->bnchunk; i++){ 154 q->bulkxfer[i].poffset = i * q->bnpacket; 155 q->bulkxfer[i].mbuf = NULL; 156 STAILQ_INSERT_TAIL(&q->stfree, &q->bulkxfer[i], link); 157 } 158 159 q->flag &= ~FWXFERQ_MODEMASK; 160 q->flag |= FWXFERQ_STREAM; 161 q->flag |= FWXFERQ_EXTBUF; 162 163 return (0); 164 } 165 166 static int 167 fwdev_freebuf(struct fw_xferq *q) 168 { 169 if (q->flag & FWXFERQ_EXTBUF) { 170 if (q->buf != NULL) 171 fwdma_free_multiseg(q->buf); 172 q->buf = NULL; 173 free(q->bulkxfer, M_FW); 174 q->bulkxfer = NULL; 175 q->flag &= ~FWXFERQ_EXTBUF; 176 q->psize = 0; 177 q->maxq = FWMAXQUEUE; 178 } 179 return (0); 180 } 181 182 183 static int 184 fw_open (struct cdev *dev, int flags, int fmt, fw_proc *td) 185 { 186 int err = 0; 187 int unit = DEV2UNIT(dev); 188 struct fw_drv1 *d; 189 struct firewire_softc *sc; 190 191 if (DEV_FWMEM(dev)) 192 return fwmem_open(dev, flags, fmt, td); 193 194 sc = devclass_get_softc(firewire_devclass, unit); 195 if (sc == NULL) 196 return (ENXIO); 197 198 FW_GLOCK(sc->fc); 199 if (dev->si_drv1 != NULL) { 200 FW_GUNLOCK(sc->fc); 201 return (EBUSY); 202 } 203 /* set dummy value for allocation */ 204 dev->si_drv1 = (void *)-1; 205 FW_GUNLOCK(sc->fc); 206 207 dev->si_drv1 = malloc(sizeof(struct fw_drv1), M_FW, M_WAITOK | M_ZERO); 208 if (dev->si_drv1 == NULL) 209 return (ENOMEM); 210 211 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 212 if ((dev->si_flags & SI_NAMED) == 0) { 213 int unit = DEV2UNIT(dev); 214 int sub = DEV2SUB(dev); 215 216 make_dev(&firewire_cdevsw, dev2unit(dev), 217 UID_ROOT, GID_OPERATOR, 0660, 218 "fw%d.%d", unit, sub); 219 } 220 #endif 221 d = (struct fw_drv1 *)dev->si_drv1; 222 d->fc = sc->fc; 223 STAILQ_INIT(&d->binds); 224 STAILQ_INIT(&d->rq); 225 226 return err; 227 } 228 229 static int 230 fw_close (struct cdev *dev, int flags, int fmt, fw_proc *td) 231 { 232 struct firewire_comm *fc; 233 struct fw_drv1 *d; 234 struct fw_xfer *xfer; 235 struct fw_bind *fwb; 236 int err = 0; 237 238 if (DEV_FWMEM(dev)) 239 return fwmem_close(dev, flags, fmt, td); 240 241 d = (struct fw_drv1 *)dev->si_drv1; 242 fc = d->fc; 243 244 /* remove binding */ 245 for (fwb = STAILQ_FIRST(&d->binds); fwb != NULL; 246 fwb = STAILQ_FIRST(&d->binds)) { 247 fw_bindremove(fc, fwb); 248 STAILQ_REMOVE_HEAD(&d->binds, chlist); 249 fw_xferlist_remove(&fwb->xferlist); 250 free(fwb, M_FW); 251 } 252 if (d->ir != NULL) { 253 struct fw_xferq *ir = d->ir; 254 255 if ((ir->flag & FWXFERQ_OPEN) == 0) 256 return (EINVAL); 257 if (ir->flag & FWXFERQ_RUNNING) { 258 ir->flag &= ~FWXFERQ_RUNNING; 259 fc->irx_disable(fc, ir->dmach); 260 } 261 /* free extbuf */ 262 fwdev_freebuf(ir); 263 /* drain receiving buffer */ 264 for (xfer = STAILQ_FIRST(&ir->q); 265 xfer != NULL; xfer = STAILQ_FIRST(&ir->q)) { 266 ir->queued --; 267 STAILQ_REMOVE_HEAD(&ir->q, link); 268 269 xfer->resp = 0; 270 fw_xfer_done(xfer); 271 } 272 ir->flag &= ~(FWXFERQ_OPEN | 273 FWXFERQ_MODEMASK | FWXFERQ_CHTAGMASK); 274 d->ir = NULL; 275 276 } 277 if (d->it != NULL) { 278 struct fw_xferq *it = d->it; 279 280 if ((it->flag & FWXFERQ_OPEN) == 0) 281 return (EINVAL); 282 if (it->flag & FWXFERQ_RUNNING) { 283 it->flag &= ~FWXFERQ_RUNNING; 284 fc->itx_disable(fc, it->dmach); 285 } 286 /* free extbuf */ 287 fwdev_freebuf(it); 288 it->flag &= ~(FWXFERQ_OPEN | 289 FWXFERQ_MODEMASK | FWXFERQ_CHTAGMASK); 290 d->it = NULL; 291 } 292 free(dev->si_drv1, M_FW); 293 dev->si_drv1 = NULL; 294 295 return err; 296 } 297 298 static int 299 fw_read_async(struct fw_drv1 *d, struct uio *uio, int ioflag) 300 { 301 int err = 0, s; 302 struct fw_xfer *xfer; 303 struct fw_bind *fwb; 304 struct fw_pkt *fp; 305 struct tcode_info *tinfo; 306 307 FW_GLOCK(d->fc); 308 while ((xfer = STAILQ_FIRST(&d->rq)) == NULL && err == 0) 309 err = msleep(&d->rq, FW_GMTX(d->fc), FWPRI, "fwra", 0); 310 311 if (err != 0) { 312 FW_GUNLOCK(d->fc); 313 return (err); 314 } 315 316 s = splfw(); 317 STAILQ_REMOVE_HEAD(&d->rq, link); 318 FW_GUNLOCK(xfer->fc); 319 splx(s); 320 fp = &xfer->recv.hdr; 321 #if 0 /* for GASP ?? */ 322 if (fc->irx_post != NULL) 323 fc->irx_post(fc, fp->mode.ld); 324 #endif 325 tinfo = &xfer->fc->tcode[fp->mode.hdr.tcode]; 326 err = uiomove((void *)fp, tinfo->hdr_len, uio); 327 if (err) 328 goto out; 329 err = uiomove((void *)xfer->recv.payload, xfer->recv.pay_len, uio); 330 331 out: 332 /* recycle this xfer */ 333 fwb = (struct fw_bind *)xfer->sc; 334 fw_xfer_unload(xfer); 335 xfer->recv.pay_len = PAGE_SIZE; 336 FW_GLOCK(xfer->fc); 337 STAILQ_INSERT_TAIL(&fwb->xferlist, xfer, link); 338 FW_GUNLOCK(xfer->fc); 339 return (err); 340 } 341 342 /* 343 * read request. 344 */ 345 static int 346 fw_read (struct cdev *dev, struct uio *uio, int ioflag) 347 { 348 struct fw_drv1 *d; 349 struct fw_xferq *ir; 350 struct firewire_comm *fc; 351 int err = 0, s, slept = 0; 352 struct fw_pkt *fp; 353 354 if (DEV_FWMEM(dev)) 355 return (physio(dev, uio, ioflag)); 356 357 d = (struct fw_drv1 *)dev->si_drv1; 358 fc = d->fc; 359 ir = d->ir; 360 361 if (ir == NULL) 362 return (fw_read_async(d, uio, ioflag)); 363 364 if (ir->buf == NULL) 365 return (EIO); 366 367 FW_GLOCK(fc); 368 readloop: 369 if (ir->stproc == NULL) { 370 /* iso bulkxfer */ 371 ir->stproc = STAILQ_FIRST(&ir->stvalid); 372 if (ir->stproc != NULL) { 373 s = splfw(); 374 STAILQ_REMOVE_HEAD(&ir->stvalid, link); 375 splx(s); 376 ir->queued = 0; 377 } 378 } 379 if (ir->stproc == NULL) { 380 /* no data avaliable */ 381 if (slept == 0) { 382 slept = 1; 383 ir->flag |= FWXFERQ_WAKEUP; 384 err = msleep(ir, FW_GMTX(fc), FWPRI, "fw_read", hz); 385 ir->flag &= ~FWXFERQ_WAKEUP; 386 if (err == 0) 387 goto readloop; 388 } else if (slept == 1) 389 err = EIO; 390 FW_GUNLOCK(fc); 391 return err; 392 } else if(ir->stproc != NULL) { 393 /* iso bulkxfer */ 394 FW_GUNLOCK(fc); 395 fp = (struct fw_pkt *)fwdma_v_addr(ir->buf, 396 ir->stproc->poffset + ir->queued); 397 if(fc->irx_post != NULL) 398 fc->irx_post(fc, fp->mode.ld); 399 if(fp->mode.stream.len == 0){ 400 err = EIO; 401 return err; 402 } 403 err = uiomove((caddr_t)fp, 404 fp->mode.stream.len + sizeof(uint32_t), uio); 405 ir->queued ++; 406 if(ir->queued >= ir->bnpacket){ 407 s = splfw(); 408 STAILQ_INSERT_TAIL(&ir->stfree, ir->stproc, link); 409 splx(s); 410 fc->irx_enable(fc, ir->dmach); 411 ir->stproc = NULL; 412 } 413 if (uio->uio_resid >= ir->psize) { 414 slept = -1; 415 FW_GLOCK(fc); 416 goto readloop; 417 } 418 } 419 return err; 420 } 421 422 static int 423 fw_write_async(struct fw_drv1 *d, struct uio *uio, int ioflag) 424 { 425 struct fw_xfer *xfer; 426 struct fw_pkt pkt; 427 struct tcode_info *tinfo; 428 int err; 429 430 bzero(&pkt, sizeof(struct fw_pkt)); 431 if ((err = uiomove((caddr_t)&pkt, sizeof(uint32_t), uio))) 432 return (err); 433 tinfo = &d->fc->tcode[pkt.mode.hdr.tcode]; 434 if ((err = uiomove((caddr_t)&pkt + sizeof(uint32_t), 435 tinfo->hdr_len - sizeof(uint32_t), uio))) 436 return (err); 437 438 if ((xfer = fw_xfer_alloc_buf(M_FWXFER, uio->uio_resid, 439 PAGE_SIZE/*XXX*/)) == NULL) 440 return (ENOMEM); 441 442 bcopy(&pkt, &xfer->send.hdr, sizeof(struct fw_pkt)); 443 xfer->send.pay_len = uio->uio_resid; 444 if (uio->uio_resid > 0) { 445 if ((err = uiomove((caddr_t)&xfer->send.payload[0], 446 uio->uio_resid, uio))) 447 goto out; 448 } 449 450 xfer->fc = d->fc; 451 xfer->sc = NULL; 452 xfer->hand = fw_xferwake; 453 xfer->send.spd = 2 /* XXX */; 454 455 if ((err = fw_asyreq(xfer->fc, -1, xfer))) 456 goto out; 457 458 if ((err = fw_xferwait(xfer))) 459 goto out; 460 461 if (xfer->resp != 0) { 462 err = xfer->resp; 463 goto out; 464 } 465 466 if (xfer->flag & FWXF_RCVD) { 467 FW_GLOCK(xfer->fc); 468 STAILQ_INSERT_TAIL(&d->rq, xfer, link); 469 FW_GUNLOCK(xfer->fc); 470 return (0); 471 } 472 473 out: 474 fw_xfer_free(xfer); 475 return (err); 476 } 477 478 static int 479 fw_write (struct cdev *dev, struct uio *uio, int ioflag) 480 { 481 int err = 0; 482 int s, slept = 0; 483 struct fw_drv1 *d; 484 struct fw_pkt *fp; 485 struct firewire_comm *fc; 486 struct fw_xferq *it; 487 488 if (DEV_FWMEM(dev)) 489 return (physio(dev, uio, ioflag)); 490 491 d = (struct fw_drv1 *)dev->si_drv1; 492 fc = d->fc; 493 it = d->it; 494 495 if (it == NULL) 496 return (fw_write_async(d, uio, ioflag)); 497 498 if (it->buf == NULL) 499 return (EIO); 500 501 FW_GLOCK(fc); 502 isoloop: 503 if (it->stproc == NULL) { 504 it->stproc = STAILQ_FIRST(&it->stfree); 505 if (it->stproc != NULL) { 506 s = splfw(); 507 STAILQ_REMOVE_HEAD(&it->stfree, link); 508 splx(s); 509 it->queued = 0; 510 } else if (slept == 0) { 511 slept = 1; 512 #if 0 /* XXX to avoid lock recursion */ 513 err = fc->itx_enable(fc, it->dmach); 514 if (err) 515 goto out; 516 #endif 517 err = msleep(it, FW_GMTX(fc), FWPRI, "fw_write", hz); 518 if (err) 519 goto out; 520 goto isoloop; 521 } else { 522 err = EIO; 523 goto out; 524 } 525 } 526 FW_GUNLOCK(fc); 527 fp = (struct fw_pkt *)fwdma_v_addr(it->buf, 528 it->stproc->poffset + it->queued); 529 err = uiomove((caddr_t)fp, sizeof(struct fw_isohdr), uio); 530 err = uiomove((caddr_t)fp->mode.stream.payload, 531 fp->mode.stream.len, uio); 532 it->queued ++; 533 if (it->queued >= it->bnpacket) { 534 s = splfw(); 535 STAILQ_INSERT_TAIL(&it->stvalid, it->stproc, link); 536 splx(s); 537 it->stproc = NULL; 538 err = fc->itx_enable(fc, it->dmach); 539 } 540 if (uio->uio_resid >= sizeof(struct fw_isohdr)) { 541 slept = 0; 542 FW_GLOCK(fc); 543 goto isoloop; 544 } 545 return err; 546 547 out: 548 FW_GUNLOCK(fc); 549 return err; 550 } 551 552 static void 553 fw_hand(struct fw_xfer *xfer) 554 { 555 struct fw_bind *fwb; 556 struct fw_drv1 *d; 557 558 fwb = (struct fw_bind *)xfer->sc; 559 d = (struct fw_drv1 *)fwb->sc; 560 FW_GLOCK(xfer->fc); 561 STAILQ_INSERT_TAIL(&d->rq, xfer, link); 562 FW_GUNLOCK(xfer->fc); 563 wakeup(&d->rq); 564 } 565 566 /* 567 * ioctl support. 568 */ 569 int 570 fw_ioctl (struct cdev *dev, u_long cmd, caddr_t data, int flag, fw_proc *td) 571 { 572 struct firewire_comm *fc; 573 struct fw_drv1 *d; 574 int i, len, err = 0; 575 struct fw_device *fwdev; 576 struct fw_bind *fwb; 577 struct fw_xferq *ir, *it; 578 struct fw_xfer *xfer; 579 struct fw_pkt *fp; 580 struct fw_devinfo *devinfo; 581 void *ptr; 582 583 struct fw_devlstreq *fwdevlst = (struct fw_devlstreq *)data; 584 struct fw_asyreq *asyreq = (struct fw_asyreq *)data; 585 struct fw_isochreq *ichreq = (struct fw_isochreq *)data; 586 struct fw_isobufreq *ibufreq = (struct fw_isobufreq *)data; 587 struct fw_asybindreq *bindreq = (struct fw_asybindreq *)data; 588 struct fw_crom_buf *crom_buf = (struct fw_crom_buf *)data; 589 590 if (DEV_FWMEM(dev)) 591 return fwmem_ioctl(dev, cmd, data, flag, td); 592 593 if (!data) 594 return(EINVAL); 595 596 d = (struct fw_drv1 *)dev->si_drv1; 597 fc = d->fc; 598 ir = d->ir; 599 it = d->it; 600 601 switch (cmd) { 602 case FW_STSTREAM: 603 if (it == NULL) { 604 i = fw_open_isodma(fc, /* tx */1); 605 if (i < 0) { 606 err = EBUSY; 607 break; 608 } 609 it = fc->it[i]; 610 err = fwdev_allocbuf(fc, it, &d->bufreq.tx); 611 if (err) { 612 it->flag &= ~FWXFERQ_OPEN; 613 break; 614 } 615 } 616 it->flag &= ~0xff; 617 it->flag |= (0x3f & ichreq->ch); 618 it->flag |= ((0x3 & ichreq->tag) << 6); 619 d->it = it; 620 break; 621 case FW_GTSTREAM: 622 if (it != NULL) { 623 ichreq->ch = it->flag & 0x3f; 624 ichreq->tag = it->flag >> 2 & 0x3; 625 } else 626 err = EINVAL; 627 break; 628 case FW_SRSTREAM: 629 if (ir == NULL) { 630 i = fw_open_isodma(fc, /* tx */0); 631 if (i < 0) { 632 err = EBUSY; 633 break; 634 } 635 ir = fc->ir[i]; 636 err = fwdev_allocbuf(fc, ir, &d->bufreq.rx); 637 if (err) { 638 ir->flag &= ~FWXFERQ_OPEN; 639 break; 640 } 641 } 642 ir->flag &= ~0xff; 643 ir->flag |= (0x3f & ichreq->ch); 644 ir->flag |= ((0x3 & ichreq->tag) << 6); 645 d->ir = ir; 646 err = fc->irx_enable(fc, ir->dmach); 647 break; 648 case FW_GRSTREAM: 649 if (d->ir != NULL) { 650 ichreq->ch = ir->flag & 0x3f; 651 ichreq->tag = ir->flag >> 2 & 0x3; 652 } else 653 err = EINVAL; 654 break; 655 case FW_SSTBUF: 656 bcopy(ibufreq, &d->bufreq, sizeof(d->bufreq)); 657 break; 658 case FW_GSTBUF: 659 bzero(&ibufreq->rx, sizeof(ibufreq->rx)); 660 if (ir != NULL) { 661 ibufreq->rx.nchunk = ir->bnchunk; 662 ibufreq->rx.npacket = ir->bnpacket; 663 ibufreq->rx.psize = ir->psize; 664 } 665 bzero(&ibufreq->tx, sizeof(ibufreq->tx)); 666 if (it != NULL) { 667 ibufreq->tx.nchunk = it->bnchunk; 668 ibufreq->tx.npacket = it->bnpacket; 669 ibufreq->tx.psize = it->psize; 670 } 671 break; 672 case FW_ASYREQ: 673 { 674 struct tcode_info *tinfo; 675 int pay_len = 0; 676 677 fp = &asyreq->pkt; 678 tinfo = &fc->tcode[fp->mode.hdr.tcode]; 679 680 if ((tinfo->flag & FWTI_BLOCK_ASY) != 0) 681 pay_len = MAX(0, asyreq->req.len - tinfo->hdr_len); 682 683 xfer = fw_xfer_alloc_buf(M_FWXFER, pay_len, PAGE_SIZE/*XXX*/); 684 if (xfer == NULL) 685 return (ENOMEM); 686 687 switch (asyreq->req.type) { 688 case FWASREQNODE: 689 break; 690 case FWASREQEUI: 691 fwdev = fw_noderesolve_eui64(fc, 692 &asyreq->req.dst.eui); 693 if (fwdev == NULL) { 694 device_printf(fc->bdev, 695 "cannot find node\n"); 696 err = EINVAL; 697 goto out; 698 } 699 fp->mode.hdr.dst = FWLOCALBUS | fwdev->dst; 700 break; 701 case FWASRESTL: 702 /* XXX what's this? */ 703 break; 704 case FWASREQSTREAM: 705 /* nothing to do */ 706 break; 707 } 708 709 bcopy(fp, (void *)&xfer->send.hdr, tinfo->hdr_len); 710 if (pay_len > 0) 711 bcopy((char *)fp + tinfo->hdr_len, 712 (void *)xfer->send.payload, pay_len); 713 xfer->send.spd = asyreq->req.sped; 714 xfer->hand = fw_xferwake; 715 716 if ((err = fw_asyreq(fc, -1, xfer)) != 0) 717 goto out; 718 if ((err = fw_xferwait(xfer)) != 0) 719 goto out; 720 if (xfer->resp != 0) { 721 err = EIO; 722 goto out; 723 } 724 if ((tinfo->flag & FWTI_TLABEL) == 0) 725 goto out; 726 727 /* copy response */ 728 tinfo = &fc->tcode[xfer->recv.hdr.mode.hdr.tcode]; 729 if (xfer->recv.hdr.mode.hdr.tcode == FWTCODE_RRESB || 730 xfer->recv.hdr.mode.hdr.tcode == FWTCODE_LRES) { 731 pay_len = xfer->recv.pay_len; 732 if (asyreq->req.len >= xfer->recv.pay_len + tinfo->hdr_len) { 733 asyreq->req.len = xfer->recv.pay_len + 734 tinfo->hdr_len; 735 } else { 736 err = EINVAL; 737 pay_len = 0; 738 } 739 } else { 740 pay_len = 0; 741 } 742 bcopy(&xfer->recv.hdr, fp, tinfo->hdr_len); 743 bcopy(xfer->recv.payload, (char *)fp + tinfo->hdr_len, pay_len); 744 out: 745 fw_xfer_free_buf(xfer); 746 break; 747 } 748 case FW_IBUSRST: 749 fc->ibr(fc); 750 break; 751 case FW_CBINDADDR: 752 fwb = fw_bindlookup(fc, 753 bindreq->start.hi, bindreq->start.lo); 754 if(fwb == NULL){ 755 err = EINVAL; 756 break; 757 } 758 fw_bindremove(fc, fwb); 759 STAILQ_REMOVE(&d->binds, fwb, fw_bind, chlist); 760 fw_xferlist_remove(&fwb->xferlist); 761 free(fwb, M_FW); 762 break; 763 case FW_SBINDADDR: 764 if(bindreq->len <= 0 ){ 765 err = EINVAL; 766 break; 767 } 768 if(bindreq->start.hi > 0xffff ){ 769 err = EINVAL; 770 break; 771 } 772 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_FW, M_WAITOK); 773 if(fwb == NULL){ 774 err = ENOMEM; 775 break; 776 } 777 fwb->start = ((u_int64_t)bindreq->start.hi << 32) | 778 bindreq->start.lo; 779 fwb->end = fwb->start + bindreq->len; 780 fwb->sc = (void *)d; 781 STAILQ_INIT(&fwb->xferlist); 782 err = fw_bindadd(fc, fwb); 783 if (err == 0) { 784 fw_xferlist_add(&fwb->xferlist, M_FWXFER, 785 /* XXX */ 786 PAGE_SIZE, PAGE_SIZE, 5, 787 fc, (void *)fwb, fw_hand); 788 STAILQ_INSERT_TAIL(&d->binds, fwb, chlist); 789 } 790 break; 791 case FW_GDEVLST: 792 i = len = 1; 793 /* myself */ 794 devinfo = &fwdevlst->dev[0]; 795 devinfo->dst = fc->nodeid; 796 devinfo->status = 0; /* XXX */ 797 devinfo->eui.hi = fc->eui.hi; 798 devinfo->eui.lo = fc->eui.lo; 799 STAILQ_FOREACH(fwdev, &fc->devices, link) { 800 if(len < FW_MAX_DEVLST){ 801 devinfo = &fwdevlst->dev[len++]; 802 devinfo->dst = fwdev->dst; 803 devinfo->status = 804 (fwdev->status == FWDEVINVAL)?0:1; 805 devinfo->eui.hi = fwdev->eui.hi; 806 devinfo->eui.lo = fwdev->eui.lo; 807 } 808 i++; 809 } 810 fwdevlst->n = i; 811 fwdevlst->info_len = len; 812 break; 813 case FW_GTPMAP: 814 bcopy(fc->topology_map, data, 815 (fc->topology_map->crc_len + 1) * 4); 816 break; 817 case FW_GCROM: 818 STAILQ_FOREACH(fwdev, &fc->devices, link) 819 if (FW_EUI64_EQUAL(fwdev->eui, crom_buf->eui)) 820 break; 821 if (fwdev == NULL) { 822 if (!FW_EUI64_EQUAL(fc->eui, crom_buf->eui)) { 823 err = FWNODE_INVAL; 824 break; 825 } 826 /* myself */ 827 ptr = malloc(CROMSIZE, M_FW, M_WAITOK); 828 len = CROMSIZE; 829 for (i = 0; i < CROMSIZE/4; i++) 830 ((uint32_t *)ptr)[i] 831 = ntohl(fc->config_rom[i]); 832 } else { 833 /* found */ 834 ptr = (void *)&fwdev->csrrom[0]; 835 if (fwdev->rommax < CSRROMOFF) 836 len = 0; 837 else 838 len = fwdev->rommax - CSRROMOFF + 4; 839 } 840 if (crom_buf->len < len) 841 len = crom_buf->len; 842 else 843 crom_buf->len = len; 844 err = copyout(ptr, crom_buf->ptr, len); 845 if (fwdev == NULL) 846 /* myself */ 847 free(ptr, M_FW); 848 break; 849 default: 850 fc->ioctl (dev, cmd, data, flag, td); 851 break; 852 } 853 return err; 854 } 855 int 856 fw_poll(struct cdev *dev, int events, fw_proc *td) 857 { 858 struct fw_xferq *ir; 859 int revents; 860 int tmp; 861 862 if (DEV_FWMEM(dev)) 863 return fwmem_poll(dev, events, td); 864 865 ir = ((struct fw_drv1 *)dev->si_drv1)->ir; 866 revents = 0; 867 tmp = POLLIN | POLLRDNORM; 868 if (events & tmp) { 869 if (STAILQ_FIRST(&ir->q) != NULL) 870 revents |= tmp; 871 else 872 selrecord(td, &ir->rsel); 873 } 874 tmp = POLLOUT | POLLWRNORM; 875 if (events & tmp) { 876 /* XXX should be fixed */ 877 revents |= tmp; 878 } 879 880 return revents; 881 } 882 883 static int 884 #if defined(__DragonFly__) || __FreeBSD_version < 500102 885 fw_mmap (struct cdev *dev, vm_offset_t offset, int nproto) 886 #else 887 fw_mmap (struct cdev *dev, vm_offset_t offset, vm_paddr_t *paddr, int nproto) 888 #endif 889 { 890 891 if (DEV_FWMEM(dev)) 892 #if defined(__DragonFly__) || __FreeBSD_version < 500102 893 return fwmem_mmap(dev, offset, nproto); 894 #else 895 return fwmem_mmap(dev, offset, paddr, nproto); 896 #endif 897 898 return EINVAL; 899 } 900 901 static void 902 fw_strategy(struct bio *bp) 903 { 904 struct cdev *dev; 905 906 dev = bp->bio_dev; 907 if (DEV_FWMEM(dev)) { 908 fwmem_strategy(bp); 909 return; 910 } 911 912 bp->bio_error = EOPNOTSUPP; 913 bp->bio_flags |= BIO_ERROR; 914 bp->bio_resid = bp->bio_bcount; 915 biodone(bp); 916 } 917 918 int 919 fwdev_makedev(struct firewire_softc *sc) 920 { 921 int err = 0; 922 923 #if defined(__DragonFly__) || __FreeBSD_version < 500000 924 cdevsw_add(&firewire_cdevsw); 925 #else 926 struct cdev *d; 927 int unit; 928 929 unit = device_get_unit(sc->fc->bdev); 930 sc->dev = make_dev(&firewire_cdevsw, MAKEMINOR(0, unit, 0), 931 UID_ROOT, GID_OPERATOR, 0660, 932 "fw%d.%d", unit, 0); 933 d = make_dev(&firewire_cdevsw, 934 MAKEMINOR(FWMEM_FLAG, unit, 0), 935 UID_ROOT, GID_OPERATOR, 0660, 936 "fwmem%d.%d", unit, 0); 937 dev_depends(sc->dev, d); 938 make_dev_alias(sc->dev, "fw%d", unit); 939 make_dev_alias(d, "fwmem%d", unit); 940 #endif 941 942 return (err); 943 } 944 945 int 946 fwdev_destroydev(struct firewire_softc *sc) 947 { 948 int err = 0; 949 950 #if defined(__DragonFly__) || __FreeBSD_version < 500000 951 cdevsw_remove(&firewire_cdevsw); 952 #else 953 destroy_dev(sc->dev); 954 #endif 955 return (err); 956 } 957 958 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 959 #define NDEVTYPE 2 960 void 961 fwdev_clone(void *arg, struct ucred *cred, char *name, int namelen, 962 struct cdev **dev) 963 { 964 struct firewire_softc *sc; 965 char *devnames[NDEVTYPE] = {"fw", "fwmem"}; 966 char *subp = NULL; 967 int devflag[NDEVTYPE] = {0, FWMEM_FLAG}; 968 int i, unit = 0, sub = 0; 969 970 if (*dev != NULL) 971 return; 972 973 for (i = 0; i < NDEVTYPE; i++) 974 if (dev_stdclone(name, &subp, devnames[i], &unit) == 2) 975 goto found; 976 /* not match */ 977 return; 978 found: 979 980 if (subp == NULL || *subp++ != '.') 981 return; 982 983 /* /dev/fwU.S */ 984 while (isdigit(*subp)) { 985 sub *= 10; 986 sub += *subp++ - ''; 987 } 988 if (*subp != '\0') 989 return; 990 991 sc = devclass_get_softc(firewire_devclass, unit); 992 if (sc == NULL) 993 return; 994 *dev = make_dev(&firewire_cdevsw, MAKEMINOR(devflag[i], unit, sub), 995 UID_ROOT, GID_OPERATOR, 0660, 996 "%s%d.%d", devnames[i], unit, sub); 997 dev_ref(*dev); 998 (*dev)->si_flags |= SI_CHEAPCLONE; 999 dev_depends(sc->dev, *dev); 1000 return; 1001 } 1002 #endif
Cache object: eba25be3f9ed8b8e38d88eeb267766a3
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