sys/bus/firewire/fwdev.c

   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: src/sys/dev/firewire/fwdev.c,v 1.36 2004/01/22 14:41:17 simokawa Exp $
  35  *
  36  */
  37
  38 #include <sys/param.h>
  39 #include <sys/systm.h>
  40 #include <sys/types.h>
  41 #include <sys/mbuf.h>
  42 #include <sys/buf.h>
  43
  44 #include <sys/kernel.h>
  45 #include <sys/malloc.h>
  46 #include <sys/conf.h>
  47 #include <sys/event.h>
  48
  49 #include <sys/bus.h>
  50 #include <sys/ctype.h>
  51
  52 #include <sys/thread2.h>
  53
  54 #include <bus/firewire/firewire.h>
  55 #include <bus/firewire/firewirereg.h>
  56 #include <bus/firewire/fwdma.h>
  57 #include <bus/firewire/fwmem.h>
  58 #include <bus/firewire/iec68113.h>
  59
  60 #define FWNODE_INVAL 0xffff
  61
  62 static  d_open_t        fw_open;
  63 static  d_close_t       fw_close;
  64 static  d_ioctl_t       fw_ioctl;
  65 static  d_kqfilter_t    fw_kqfilter;
  66 static  d_read_t        fw_read;        /* for Isochronous packet */
  67 static  d_write_t       fw_write;
  68 static  d_mmap_t        fw_mmap;
  69 static  d_strategy_t    fw_strategy;
  70
  71 static void fwfilt_detach(struct knote *);
  72 static int fwfilt_read(struct knote *, long);
  73 static int fwfilt_write(struct knote *, long);
  74
  75 struct dev_ops firewire_ops =
  76 {
  77         { "fw", 0, D_MEM },
  78         .d_open =       fw_open,
  79         .d_close =      fw_close,
  80         .d_read =       fw_read,
  81         .d_write =      fw_write,
  82         .d_ioctl =      fw_ioctl,
  83         .d_kqfilter =   fw_kqfilter,
  84         .d_mmap =       fw_mmap,
  85         .d_strategy =   fw_strategy,
  86 };
  87
  88 struct fw_drv1 {
  89         struct fw_xferq *ir;
  90         struct fw_xferq *it;
  91         struct fw_isobufreq bufreq;
  92 };
  93
  94 static int
  95 fwdev_allocbuf(struct firewire_comm *fc, struct fw_xferq *q,
  96         struct fw_bufspec *b)
  97 {
  98         int i;
  99
 100         if (q->flag & (FWXFERQ_RUNNING | FWXFERQ_EXTBUF))
 101                 return(EBUSY);
 102
 103         q->bulkxfer = (struct fw_bulkxfer *) kmalloc(
 104                 sizeof(struct fw_bulkxfer) * b->nchunk,
 105                 M_FW, M_WAITOK);
 106
 107         b->psize = roundup2(b->psize, sizeof(u_int32_t));
 108         q->buf = fwdma_malloc_multiseg(fc, sizeof(u_int32_t),
 109                         b->psize, b->nchunk * b->npacket, BUS_DMA_WAITOK);
 110
 111         if (q->buf == NULL) {
 112                 kfree(q->bulkxfer, M_FW);
 113                 q->bulkxfer = NULL;
 114                 return(ENOMEM);
 115         }
 116         q->bnchunk = b->nchunk;
 117         q->bnpacket = b->npacket;
 118         q->psize = (b->psize + 3) & ~3;
 119         q->queued = 0;
 120
 121         STAILQ_INIT(&q->stvalid);
 122         STAILQ_INIT(&q->stfree);
 123         STAILQ_INIT(&q->stdma);
 124         q->stproc = NULL;
 125
 126         for(i = 0 ; i < q->bnchunk; i++){
 127                 q->bulkxfer[i].poffset = i * q->bnpacket;
 128                 q->bulkxfer[i].mbuf = NULL;
 129                 STAILQ_INSERT_TAIL(&q->stfree, &q->bulkxfer[i], link);
 130         }
 131
 132         q->flag &= ~FWXFERQ_MODEMASK;
 133         q->flag |= FWXFERQ_STREAM;
 134         q->flag |= FWXFERQ_EXTBUF;
 135
 136         return (0);
 137 }
 138
 139 static int
 140 fwdev_freebuf(struct fw_xferq *q)
 141 {
 142         if (q->flag & FWXFERQ_EXTBUF) {
 143                 if (q->buf != NULL)
 144                         fwdma_free_multiseg(q->buf);
 145                 q->buf = NULL;
 146                 kfree(q->bulkxfer, M_FW);
 147                 q->bulkxfer = NULL;
 148                 q->flag &= ~FWXFERQ_EXTBUF;
 149                 q->psize = 0;
 150                 q->maxq = FWMAXQUEUE;
 151         }
 152         return (0);
 153 }
 154
 155
 156 static int
 157 fw_open (struct dev_open_args *ap)
 158 {
 159         cdev_t dev = ap->a_head.a_dev;
 160         int err = 0;
 161
 162         if (DEV_FWMEM(dev))
 163                 return fwmem_open(ap);
 164
 165         if (dev->si_drv1 != NULL)
 166                 return (EBUSY);
 167
 168 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000
 169         if ((dev->si_flags & SI_NAMED) == 0) {
 170                 int unit = DEV2UNIT(dev);
 171                 int sub = DEV2SUB(dev);
 172
 173                 make_dev(&firewire_ops, minor(dev),
 174                         UID_ROOT, GID_OPERATOR, 0660,
 175                         "fw%d.%d", unit, sub);
 176         }
 177 #endif
 178
 179         dev->si_drv1 = kmalloc(sizeof(struct fw_drv1), M_FW, M_WAITOK | M_ZERO);
 180
 181         return err;
 182 }
 183
 184 static int
 185 fw_close (struct dev_close_args *ap)
 186 {
 187         cdev_t dev = ap->a_head.a_dev;
 188         struct firewire_softc *sc;
 189         struct firewire_comm *fc;
 190         struct fw_drv1 *d;
 191         int unit = DEV2UNIT(dev);
 192         struct fw_xfer *xfer;
 193         struct fw_bind *fwb;
 194         int err = 0;
 195
 196         if (DEV_FWMEM(dev))
 197                 return fwmem_close(ap);
 198
 199         sc = devclass_get_softc(firewire_devclass, unit);
 200         fc = sc->fc;
 201         d = (struct fw_drv1 *)dev->si_drv1;
 202
 203         if (d->ir != NULL) {
 204                 struct fw_xferq *ir = d->ir;
 205
 206                 if ((ir->flag & FWXFERQ_OPEN) == 0)
 207                         return (EINVAL);
 208                 if (ir->flag & FWXFERQ_RUNNING) {
 209                         ir->flag &= ~FWXFERQ_RUNNING;
 210                         fc->irx_disable(fc, ir->dmach);
 211                 }
 212                 /* free extbuf */
 213                 fwdev_freebuf(ir);
 214                 /* drain receiving buffer */
 215                 for (xfer = STAILQ_FIRST(&ir->q);
 216                         xfer != NULL; xfer = STAILQ_FIRST(&ir->q)) {
 217                         ir->queued --;
 218                         STAILQ_REMOVE_HEAD(&ir->q, link);
 219
 220                         xfer->resp = 0;
 221                         fw_xfer_done(xfer);
 222                 }
 223                 /* remove binding */
 224                 for (fwb = STAILQ_FIRST(&ir->binds); fwb != NULL;
 225                                 fwb = STAILQ_FIRST(&ir->binds)) {
 226                         STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist);
 227                         STAILQ_REMOVE_HEAD(&ir->binds, chlist);
 228                         kfree(fwb, M_FW);
 229                 }
 230                 ir->flag &= ~(FWXFERQ_OPEN |
 231                         FWXFERQ_MODEMASK | FWXFERQ_CHTAGMASK);
 232                 d->ir = NULL;
 233
 234         }
 235         if (d->it != NULL) {
 236                 struct fw_xferq *it = d->it;
 237
 238                 if ((it->flag & FWXFERQ_OPEN) == 0)
 239                         return (EINVAL);
 240                 if (it->flag & FWXFERQ_RUNNING) {
 241                         it->flag &= ~FWXFERQ_RUNNING;
 242                         fc->itx_disable(fc, it->dmach);
 243                 }
 244                 /* free extbuf */
 245                 fwdev_freebuf(it);
 246                 it->flag &= ~(FWXFERQ_OPEN |
 247                         FWXFERQ_MODEMASK | FWXFERQ_CHTAGMASK);
 248                 d->it = NULL;
 249         }
 250         kfree(dev->si_drv1, M_FW);
 251         dev->si_drv1 = NULL;
 252
 253         return err;
 254 }
 255
 256 /*
 257  * read request.
 258  */
 259 static int
 260 fw_read (struct dev_read_args *ap)
 261 {
 262         cdev_t dev = ap->a_head.a_dev;
 263         struct uio *uio = ap->a_uio;
 264         struct firewire_softc *sc;
 265         struct fw_xferq *ir;
 266         struct fw_xfer *xfer;
 267         int err = 0, slept = 0;
 268         int unit = DEV2UNIT(dev);
 269         struct fw_pkt *fp;
 270
 271         if (DEV_FWMEM(dev))
 272                 return physread(ap);
 273
 274         sc = devclass_get_softc(firewire_devclass, unit);
 275
 276         ir = ((struct fw_drv1 *)dev->si_drv1)->ir;
 277         if (ir == NULL || ir->buf == NULL)
 278                 return (EIO);
 279
 280 readloop:
 281         xfer = STAILQ_FIRST(&ir->q);
 282         if (ir->stproc == NULL) {
 283                 /* iso bulkxfer */
 284                 ir->stproc = STAILQ_FIRST(&ir->stvalid);
 285                 if (ir->stproc != NULL) {
 286                         crit_enter();
 287                         STAILQ_REMOVE_HEAD(&ir->stvalid, link);
 288                         crit_exit();
 289                         ir->queued = 0;
 290                 }
 291         }
 292         if (xfer == NULL && ir->stproc == NULL) {
 293                 /* no data avaliable */
 294                 if (slept == 0) {
 295                         slept = 1;
 296                         ir->flag |= FWXFERQ_WAKEUP;
 297                         err = tsleep(ir, FWPRI, "fw_read", hz);
 298                         ir->flag &= ~FWXFERQ_WAKEUP;
 299                         if (err == 0)
 300                                 goto readloop;
 301                 } else if (slept == 1)
 302                         err = EIO;
 303                 return err;
 304         } else if(xfer != NULL) {
 305 #if 0 /* XXX broken */
 306                 /* per packet mode or FWACT_CH bind?*/
 307                 crit_enter();
 308                 ir->queued --;
 309                 STAILQ_REMOVE_HEAD(&ir->q, link);
 310                 crit_exit();
 311                 fp = &xfer->recv.hdr;
 312                 if (sc->fc->irx_post != NULL)
 313                         sc->fc->irx_post(sc->fc, fp->mode.ld);
 314                 err = uiomove((void *)fp, 1 /* XXX header size */, uio);
 315                 /* XXX copy payload too */
 316                 /* XXX we should recycle this xfer */
 317 #endif
 318                 fw_xfer_free( xfer);
 319         } else if(ir->stproc != NULL) {
 320                 /* iso bulkxfer */
 321                 fp = (struct fw_pkt *)fwdma_v_addr(ir->buf,
 322                                 ir->stproc->poffset + ir->queued);
 323                 if(sc->fc->irx_post != NULL)
 324                         sc->fc->irx_post(sc->fc, fp->mode.ld);
 325                 if(fp->mode.stream.len == 0){
 326                         err = EIO;
 327                         return err;
 328                 }
 329                 err = uiomove((caddr_t)fp,
 330                         fp->mode.stream.len + sizeof(u_int32_t), uio);
 331                 ir->queued ++;
 332                 if(ir->queued >= ir->bnpacket){
 333                         crit_enter();
 334                         STAILQ_INSERT_TAIL(&ir->stfree, ir->stproc, link);
 335                         crit_exit();
 336                         sc->fc->irx_enable(sc->fc, ir->dmach);
 337                         ir->stproc = NULL;
 338                 }
 339                 if (uio->uio_resid >= ir->psize) {
 340                         slept = -1;
 341                         goto readloop;
 342                 }
 343         }
 344         return err;
 345 }
 346
 347 static int
 348 fw_write (struct dev_write_args *ap)
 349 {
 350         cdev_t dev = ap->a_head.a_dev;
 351         struct uio *uio = ap->a_uio;
 352         int err = 0;
 353         struct firewire_softc *sc;
 354         int unit = DEV2UNIT(dev);
 355         int slept = 0;
 356         struct fw_pkt *fp;
 357         struct fw_xferq *it;
 358
 359         if (DEV_FWMEM(dev))
 360                 return physwrite(ap);
 361
 362         sc = devclass_get_softc(firewire_devclass, unit);
 363         it = ((struct fw_drv1 *)dev->si_drv1)->it;
 364         if (it == NULL || it->buf == NULL)
 365                 return (EIO);
 366 isoloop:
 367         if (it->stproc == NULL) {
 368                 it->stproc = STAILQ_FIRST(&it->stfree);
 369                 if (it->stproc != NULL) {
 370                         crit_enter();
 371                         STAILQ_REMOVE_HEAD(&it->stfree, link);
 372                         crit_exit();
 373                         it->queued = 0;
 374                 } else if (slept == 0) {
 375                         slept = 1;
 376                         err = sc->fc->itx_enable(sc->fc, it->dmach);
 377                         if (err)
 378                                 return err;
 379                         err = tsleep(it, FWPRI, "fw_write", hz);
 380                         if (err)
 381                                 return err;
 382                         goto isoloop;
 383                 } else {
 384                         err = EIO;
 385                         return err;
 386                 }
 387         }
 388         fp = (struct fw_pkt *)fwdma_v_addr(it->buf,
 389                         it->stproc->poffset + it->queued);
 390         err = uiomove((caddr_t)fp, sizeof(struct fw_isohdr), uio);
 391         err = uiomove((caddr_t)fp->mode.stream.payload,
 392                                 fp->mode.stream.len, uio);
 393         it->queued ++;
 394         if (it->queued >= it->bnpacket) {
 395                 crit_enter();
 396                 STAILQ_INSERT_TAIL(&it->stvalid, it->stproc, link);
 397                 crit_exit();
 398                 it->stproc = NULL;
 399                 err = sc->fc->itx_enable(sc->fc, it->dmach);
 400         }
 401         if (uio->uio_resid >= sizeof(struct fw_isohdr)) {
 402                 slept = 0;
 403                 goto isoloop;
 404         }
 405         return err;
 406 }
 407 /*
 408  * ioctl support.
 409  */
 410 static int
 411 fw_ioctl (struct dev_ioctl_args *ap)
 412 {
 413         cdev_t dev = ap->a_head.a_dev;
 414         struct firewire_softc *sc;
 415         struct firewire_comm *fc;
 416         struct fw_drv1 *d;
 417         int unit = DEV2UNIT(dev);
 418         int i, len, err = 0;
 419         struct fw_device *fwdev;
 420         struct fw_bind *fwb;
 421         struct fw_xferq *ir, *it;
 422         struct fw_xfer *xfer;
 423         struct fw_pkt *fp;
 424         struct fw_devinfo *devinfo;
 425         void *ptr;
 426
 427         struct fw_devlstreq *fwdevlst = (struct fw_devlstreq *)ap->a_data;
 428         struct fw_asyreq *asyreq = (struct fw_asyreq *)ap->a_data;
 429         struct fw_isochreq *ichreq = (struct fw_isochreq *)ap->a_data;
 430         struct fw_isobufreq *ibufreq = (struct fw_isobufreq *)ap->a_data;
 431         struct fw_asybindreq *bindreq = (struct fw_asybindreq *)ap->a_data;
 432         struct fw_crom_buf *crom_buf = (struct fw_crom_buf *)ap->a_data;
 433
 434         if (DEV_FWMEM(dev))
 435                 return fwmem_ioctl(ap);
 436
 437         if (!ap->a_data)
 438                 return(EINVAL);
 439
 440         sc = devclass_get_softc(firewire_devclass, unit);
 441         fc = sc->fc;
 442         d = (struct fw_drv1 *)dev->si_drv1;
 443         ir = d->ir;
 444         it = d->it;
 445
 446         switch (ap->a_cmd) {
 447         case FW_STSTREAM:
 448                 if (it == NULL) {
 449                         for (i = 0; i < fc->nisodma; i ++) {
 450                                 it = fc->it[i];
 451                                 if ((it->flag & FWXFERQ_OPEN) == 0)
 452                                          break;
 453                         }
 454                         if (i >= fc->nisodma) {
 455                                 err = EBUSY;
 456                                 break;
 457                         }
 458                         err = fwdev_allocbuf(fc, it, &d->bufreq.tx);
 459                         if (err)
 460                                 break;
 461                         it->flag |=  FWXFERQ_OPEN;
 462                 }
 463                 it->flag &= ~0xff;
 464                 it->flag |= (0x3f & ichreq->ch);
 465                 it->flag |= ((0x3 & ichreq->tag) << 6);
 466                 d->it = it;
 467                 break;
 468         case FW_GTSTREAM:
 469                 if (it != NULL) {
 470                         ichreq->ch = it->flag & 0x3f;
 471                         ichreq->tag = it->flag >> 2 & 0x3;
 472                 } else
 473                         err = EINVAL;
 474                 break;
 475         case FW_SRSTREAM:
 476                 if (ir == NULL) {
 477                         for (i = 0; i < fc->nisodma; i ++) {
 478                                 ir = fc->ir[i];
 479                                 if ((ir->flag & FWXFERQ_OPEN) == 0)
 480                                         break;
 481                         }
 482                         if (i >= fc->nisodma) {
 483                                 err = EBUSY;
 484                                 break;
 485                         }
 486                         err = fwdev_allocbuf(fc, ir, &d->bufreq.rx);
 487                         if (err)
 488                                 break;
 489                         ir->flag |=  FWXFERQ_OPEN;
 490                 }
 491                 ir->flag &= ~0xff;
 492                 ir->flag |= (0x3f & ichreq->ch);
 493                 ir->flag |= ((0x3 & ichreq->tag) << 6);
 494                 d->ir = ir;
 495                 err = fc->irx_enable(fc, ir->dmach);
 496                 break;
 497         case FW_GRSTREAM:
 498                 if (d->ir != NULL) {
 499                         ichreq->ch = ir->flag & 0x3f;
 500                         ichreq->tag = ir->flag >> 2 & 0x3;
 501                 } else
 502                         err = EINVAL;
 503                 break;
 504         case FW_SSTBUF:
 505                 bcopy(ibufreq, &d->bufreq, sizeof(d->bufreq));
 506                 break;
 507         case FW_GSTBUF:
 508                 bzero(&ibufreq->rx, sizeof(ibufreq->rx));
 509                 if (ir != NULL) {
 510                         ibufreq->rx.nchunk = ir->bnchunk;
 511                         ibufreq->rx.npacket = ir->bnpacket;
 512                         ibufreq->rx.psize = ir->psize;
 513                 }
 514                 bzero(&ibufreq->tx, sizeof(ibufreq->tx));
 515                 if (it != NULL) {
 516                         ibufreq->tx.nchunk = it->bnchunk;
 517                         ibufreq->tx.npacket = it->bnpacket;
 518                         ibufreq->tx.psize = it->psize;
 519                 }
 520                 break;
 521         case FW_ASYREQ:
 522         {
 523                 struct tcode_info *tinfo;
 524                 int pay_len = 0;
 525
 526                 fp = &asyreq->pkt;
 527                 tinfo = &sc->fc->tcode[fp->mode.hdr.tcode];
 528
 529                 if ((tinfo->flag & FWTI_BLOCK_ASY) != 0)
 530                         pay_len = MAX(0, asyreq->req.len - tinfo->hdr_len);
 531
 532                 xfer = fw_xfer_alloc_buf(M_FWXFER, pay_len, PAGE_SIZE/*XXX*/);
 533                 if (xfer == NULL)
 534                         return (ENOMEM);
 535
 536                 switch (asyreq->req.type) {
 537                 case FWASREQNODE:
 538                         break;
 539                 case FWASREQEUI:
 540                         fwdev = fw_noderesolve_eui64(sc->fc,
 541                                                 &asyreq->req.dst.eui);
 542                         if (fwdev == NULL) {
 543                                 device_printf(sc->fc->bdev,
 544                                         "cannot find node\n");
 545                                 err = EINVAL;
 546                                 goto out;
 547                         }
 548                         fp->mode.hdr.dst = FWLOCALBUS | fwdev->dst;
 549                         break;
 550                 case FWASRESTL:
 551                         /* XXX what's this? */
 552                         break;
 553                 case FWASREQSTREAM:
 554                         /* nothing to do */
 555                         break;
 556                 }
 557
 558                 bcopy(fp, (void *)&xfer->send.hdr, tinfo->hdr_len);
 559                 if (pay_len > 0)
 560                         bcopy((char *)fp + tinfo->hdr_len,
 561                             (void *)&xfer->send.payload, pay_len);
 562                 xfer->send.spd = asyreq->req.sped;
 563                 xfer->act.hand = fw_asy_callback;
 564
 565                 if ((err = fw_asyreq(sc->fc, -1, xfer)) != 0)
 566                         goto out;
 567                 if ((err = tsleep(xfer, FWPRI, "asyreq", hz)) != 0)
 568                         goto out;
 569                 if (xfer->resp != 0) {
 570                         err = EIO;
 571                         goto out;
 572                 }
 573                 if ((tinfo->flag & FWTI_TLABEL) == 0)
 574                         goto out;
 575
 576                 /* copy response */
 577                 tinfo = &sc->fc->tcode[xfer->recv.hdr.mode.hdr.tcode];
 578                 if (asyreq->req.len >= xfer->recv.pay_len + tinfo->hdr_len)
 579                         asyreq->req.len = xfer->recv.pay_len;
 580                 else
 581                         err = EINVAL;
 582                 bcopy(&xfer->recv.hdr, fp, tinfo->hdr_len);
 583                 bcopy(xfer->recv.payload, (char *)fp + tinfo->hdr_len,
 584                     MAX(0, asyreq->req.len - tinfo->hdr_len));
 585 out:
 586                 fw_xfer_free_buf(xfer);
 587                 break;
 588         }
 589         case FW_IBUSRST:
 590                 sc->fc->ibr(sc->fc);
 591                 break;
 592         case FW_CBINDADDR:
 593                 fwb = fw_bindlookup(sc->fc,
 594                                 bindreq->start.hi, bindreq->start.lo);
 595                 if(fwb == NULL){
 596                         err = EINVAL;
 597                         break;
 598                 }
 599                 STAILQ_REMOVE(&sc->fc->binds, fwb, fw_bind, fclist);
 600                 STAILQ_REMOVE(&ir->binds, fwb, fw_bind, chlist);
 601                 kfree(fwb, M_FW);
 602                 break;
 603         case FW_SBINDADDR:
 604                 if(bindreq->len <= 0 ){
 605                         err = EINVAL;
 606                         break;
 607                 }
 608                 if(bindreq->start.hi > 0xffff ){
 609                         err = EINVAL;
 610                         break;
 611                 }
 612                 fwb = kmalloc(sizeof (struct fw_bind), M_FW, M_WAITOK);
 613                 fwb->start = ((u_int64_t)bindreq->start.hi << 32) |
 614                     bindreq->start.lo;
 615                 fwb->end = fwb->start +  bindreq->len;
 616                 /* XXX */
 617                 fwb->sub = ir->dmach;
 618                 fwb->act_type = FWACT_CH;
 619
 620                 /* XXX alloc buf */
 621                 xfer = fw_xfer_alloc(M_FWXFER);
 622                 if(xfer == NULL){
 623                         kfree(fwb, M_FW);
 624                         return (ENOMEM);
 625                 }
 626                 xfer->fc = sc->fc;
 627
 628                 crit_enter();
 629                 /* XXX broken. need multiple xfer */
 630                 STAILQ_INIT(&fwb->xferlist);
 631                 STAILQ_INSERT_TAIL(&fwb->xferlist, xfer, link);
 632                 crit_exit();
 633                 err = fw_bindadd(sc->fc, fwb);
 634                 break;
 635         case FW_GDEVLST:
 636                 i = len = 1;
 637                 /* myself */
 638                 devinfo = &fwdevlst->dev[0];
 639                 devinfo->dst = sc->fc->nodeid;
 640                 devinfo->status = 0;    /* XXX */
 641                 devinfo->eui.hi = sc->fc->eui.hi;
 642                 devinfo->eui.lo = sc->fc->eui.lo;
 643                 STAILQ_FOREACH(fwdev, &sc->fc->devices, link) {
 644                         if(len < FW_MAX_DEVLST){
 645                                 devinfo = &fwdevlst->dev[len++];
 646                                 devinfo->dst = fwdev->dst;
 647                                 devinfo->status =
 648                                         (fwdev->status == FWDEVINVAL)?0:1;
 649                                 devinfo->eui.hi = fwdev->eui.hi;
 650                                 devinfo->eui.lo = fwdev->eui.lo;
 651                         }
 652                         i++;
 653                 }
 654                 fwdevlst->n = i;
 655                 fwdevlst->info_len = len;
 656                 break;
 657         case FW_GTPMAP:
 658                 bcopy(sc->fc->topology_map, ap->a_data,
 659                                 (sc->fc->topology_map->crc_len + 1) * 4);
 660                 break;
 661         case FW_GCROM:
 662                 STAILQ_FOREACH(fwdev, &sc->fc->devices, link)
 663                         if (FW_EUI64_EQUAL(fwdev->eui, crom_buf->eui))
 664                                 break;
 665                 if (fwdev == NULL) {
 666                         if (!FW_EUI64_EQUAL(sc->fc->eui, crom_buf->eui)) {
 667                                 err = FWNODE_INVAL;
 668                                 break;
 669                         }
 670                         /* myself */
 671                         ptr = kmalloc(CROMSIZE, M_FW, M_WAITOK);
 672                         len = CROMSIZE;
 673                         for (i = 0; i < CROMSIZE/4; i++)
 674                                 ((u_int32_t *)ptr)[i]
 675                                         = ntohl(sc->fc->config_rom[i]);
 676                 } else {
 677                         /* found */
 678                         ptr = (void *)&fwdev->csrrom[0];
 679                         if (fwdev->rommax < CSRROMOFF)
 680                                 len = 0;
 681                         else
 682                                 len = fwdev->rommax - CSRROMOFF + 4;
 683                 }
 684                 if (crom_buf->len < len && crom_buf->len >= 0)
 685                         len = crom_buf->len;
 686                 else
 687                         crom_buf->len = len;
 688                 err = copyout(ptr, crom_buf->ptr, len);
 689                 if (fwdev == NULL)
 690                         /* myself */
 691                         kfree(ptr, M_FW);
 692                 break;
 693         default:
 694                 sc->fc->ioctl(ap);
 695                 break;
 696         }
 697         return err;
 698 }
 699
 700 static struct filterops fw_read_filterops =
 701         { FILTEROP_ISFD, NULL, fwfilt_detach, fwfilt_read };
 702 static struct filterops fw_write_filterops =
 703         { FILTEROP_ISFD, NULL, fwfilt_detach, fwfilt_write };
 704
 705 static int
 706 fw_kqfilter(struct dev_kqfilter_args *ap)
 707 {
 708         cdev_t dev = ap->a_head.a_dev;
 709         struct fw_xferq *ir;
 710         struct knote *kn = ap->a_kn;
 711         struct klist *klist;
 712
 713         /*
 714          * XXX Implement filters for mem?
 715          */
 716         if (DEV_FWMEM(dev)) {
 717                 ap->a_result = EOPNOTSUPP;
 718                 return (0);
 719         }
 720
 721         ir = ((struct fw_drv1 *)dev->si_drv1)->ir;
 722
 723         ap->a_result = 0;
 724
 725         switch (kn->kn_filter) {
 726         case EVFILT_READ:
 727                 kn->kn_fop = &fw_read_filterops;
 728                 kn->kn_hook = (caddr_t)ir;
 729                 break;
 730         case EVFILT_WRITE:
 731                 kn->kn_fop = &fw_write_filterops;
 732                 kn->kn_hook = (caddr_t)ir;
 733                 break;
 734         default:
 735                 ap->a_result = EOPNOTSUPP;
 736                 return (0);
 737         }
 738
 739         klist = &ir->rkq.ki_note;
 740         knote_insert(klist, kn);
 741
 742         return (0);
 743 }
 744
 745 static void
 746 fwfilt_detach(struct knote *kn)
 747 {
 748         struct fw_xferq *ir = (struct fw_xferq *)kn->kn_hook;
 749         struct klist *klist = &ir->rkq.ki_note;
 750
 751         knote_remove(klist, kn);
 752 }
 753
 754 static int
 755 fwfilt_read(struct knote *kn, long hint)
 756 {
 757         struct fw_xferq *ir = (struct fw_xferq *)kn->kn_hook;
 758         int ready = 0;
 759
 760         if (STAILQ_FIRST(&ir->q) != NULL)
 761                 ready = 1;
 762
 763         return (ready);
 764 }
 765
 766 static int
 767 fwfilt_write(struct knote *kn, long hint)
 768 {
 769         /* XXX should be fixed */
 770         return (1);
 771 }
 772
 773 static int
 774 fw_mmap (struct dev_mmap_args *ap)
 775 {
 776         cdev_t dev = ap->a_head.a_dev;
 777
 778         if (DEV_FWMEM(dev))
 779                 return fwmem_mmap(ap);
 780
 781         return EINVAL;
 782 }
 783
 784 static int
 785 fw_strategy(struct dev_strategy_args *ap)
 786 {
 787         cdev_t dev = ap->a_head.a_dev;
 788         struct bio *bio = ap->a_bio;
 789         struct buf *bp = bio->bio_buf;
 790
 791         if (DEV_FWMEM(dev)) {
 792                 fwmem_strategy(ap);
 793                 return(0);
 794         }
 795         bp->b_error = EOPNOTSUPP;
 796         bp->b_flags |= B_ERROR;
 797         bp->b_resid = bp->b_bcount;
 798         biodone(bio);
 799         return(0);
 800 }
 801
 802 int
 803 fwdev_makedev(struct firewire_softc *sc)
 804 {
 805         /*HELPME dev_ops_add(&firewire_ops, FW_UNITMASK, FW_UNIT(unit));*/
 806         return(0);
 807 }
 808
 809 int
 810 fwdev_destroydev(struct firewire_softc *sc)
 811 {
 812         int unit;
 813
 814         unit = device_get_unit(sc->fc->bdev);
 815         dev_ops_remove_minor(&firewire_ops, /*FW_UNITMASK, */FW_UNIT(unit));
 816         return(0);
 817 }
 818
 819 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000
 820 #define NDEVTYPE 2
 821 void
 822 fwdev_clone(void *arg, char *name, int namelen, cdev_t *dev)
 823 {
 824         struct firewire_softc *sc;
 825         char *devnames[NDEVTYPE] = {"fw", "fwmem"};
 826         char *subp = NULL;
 827         int devflag[NDEVTYPE] = {0, FWMEM_FLAG};
 828         int i, unit = 0, sub = 0;
 829
 830         if (*dev != NULL)
 831                 return;
 832
 833         for (i = 0; i < NDEVTYPE; i++)
 834                 if (dev_stdclone(name, &subp, devnames[i], &unit) == 2)
 835                         goto found;
 836         /* not match */
 837         return;
 838 found:
 839
 840         if (subp == NULL || *subp++ != '.')
 841                 return;
 842
 843         /* /dev/fwU.S */
 844         while (isdigit(*subp)) {
 845                 sub *= 10;
 846                 sub += *subp++ - '0';
 847         }
 848         if (*subp != '\0')
 849                 return;
 850
 851         sc = devclass_get_softc(firewire_devclass, unit);
 852         if (sc == NULL)
 853                 return;
 854         *dev = make_dev(&firewire_ops, MAKEMINOR(devflag[i], unit, sub),
 855                        UID_ROOT, GID_OPERATOR, 0660,
 856                        "%s%d.%d", devnames[i], unit, sub);
 857         (*dev)->si_flags |= SI_CHEAPCLONE;
 858         dev_depends(sc->dev, *dev);
 859         return;
 860 }
 861 #endif