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  * $DragonFly: src/sys/bus/firewire/fwdev.c,v 1.19 2007/05/08 02:31:37 dillon Exp $
  36  *
  37  */
  38
  39 #include <sys/param.h>
  40 #include <sys/systm.h>
  41 #include <sys/types.h>
  42 #include <sys/mbuf.h>
  43 #if defined(__DragonFly__) || __FreeBSD_version < 500000
  44 #include <sys/buf.h>
  45 #else
  46 #include <sys/bio.h>
  47 #endif
  48
  49 #include <sys/kernel.h>
  50 #include <sys/malloc.h>
  51 #include <sys/conf.h>
  52 #include <sys/poll.h>
  53
  54 #include <sys/bus.h>
  55 #include <sys/ctype.h>
  56
  57 #include <sys/ioccom.h>
  58 #include <sys/thread2.h>
  59
  60 #ifdef __DragonFly__
  61 #include "firewire.h"
  62 #include "firewirereg.h"
  63 #include "fwdma.h"
  64 #include "fwmem.h"
  65 #include "iec68113.h"
  66 #else
  67 #include <dev/firewire/firewire.h>
  68 #include <dev/firewire/firewirereg.h>
  69 #include <dev/firewire/fwdma.h>
  70 #include <dev/firewire/fwmem.h>
  71 #include <dev/firewire/iec68113.h>
  72 #endif
  73
  74 #define CDEV_MAJOR 127
  75 #define FWNODE_INVAL 0xffff
  76
  77 static  d_open_t        fw_open;
  78 static  d_close_t       fw_close;
  79 static  d_ioctl_t       fw_ioctl;
  80 static  d_poll_t        fw_poll;
  81 static  d_read_t        fw_read;        /* for Isochronous packet */
  82 static  d_write_t       fw_write;
  83 static  d_mmap_t        fw_mmap;
  84 static  d_strategy_t    fw_strategy;
  85
  86 struct dev_ops firewire_ops =
  87 {
  88         { "fw", CDEV_MAJOR, D_MEM },
  89         .d_open =       fw_open,
  90         .d_close =      fw_close,
  91         .d_read =       fw_read,
  92         .d_write =      fw_write,
  93         .d_ioctl =      fw_ioctl,
  94         .d_poll =       fw_poll,
  95         .d_mmap =       fw_mmap,
  96         .d_strategy =   fw_strategy,
  97 };
  98
  99 struct fw_drv1 {
 100         struct fw_xferq *ir;
 101         struct fw_xferq *it;
 102         struct fw_isobufreq bufreq;
 103 };
 104
 105 static int
 106 fwdev_allocbuf(struct firewire_comm *fc, struct fw_xferq *q,
 107         struct fw_bufspec *b)
 108 {
 109         int i;
 110
 111         if (q->flag & (FWXFERQ_RUNNING | FWXFERQ_EXTBUF))
 112                 return(EBUSY);
 113
 114         q->bulkxfer = (struct fw_bulkxfer *) kmalloc(
 115                 sizeof(struct fw_bulkxfer) * b->nchunk,
 116                 M_FW, M_WAITOK);
 117         if (q->bulkxfer == NULL)
 118                 return(ENOMEM);
 119
 120         b->psize = roundup2(b->psize, sizeof(u_int32_t));
 121         q->buf = fwdma_malloc_multiseg(fc, sizeof(u_int32_t),
 122                         b->psize, b->nchunk * b->npacket, BUS_DMA_WAITOK);
 123
 124         if (q->buf == NULL) {
 125                 kfree(q->bulkxfer, M_FW);
 126                 q->bulkxfer = NULL;
 127                 return(ENOMEM);
 128         }
 129         q->bnchunk = b->nchunk;
 130         q->bnpacket = b->npacket;
 131         q->psize = (b->psize + 3) & ~3;
 132         q->queued = 0;
 133
 134         STAILQ_INIT(&q->stvalid);
 135         STAILQ_INIT(&q->stfree);
 136         STAILQ_INIT(&q->stdma);
 137         q->stproc = NULL;
 138
 139         for(i = 0 ; i < q->bnchunk; i++){
 140                 q->bulkxfer[i].poffset = i * q->bnpacket;
 141                 q->bulkxfer[i].mbuf = NULL;
 142                 STAILQ_INSERT_TAIL(&q->stfree, &q->bulkxfer[i], link);
 143         }
 144
 145         q->flag &= ~FWXFERQ_MODEMASK;
 146         q->flag |= FWXFERQ_STREAM;
 147         q->flag |= FWXFERQ_EXTBUF;
 148
 149         return (0);
 150 }
 151
 152 static int
 153 fwdev_freebuf(struct fw_xferq *q)
 154 {
 155         if (q->flag & FWXFERQ_EXTBUF) {
 156                 if (q->buf != NULL)
 157                         fwdma_free_multiseg(q->buf);
 158                 q->buf = NULL;
 159                 kfree(q->bulkxfer, M_FW);
 160                 q->bulkxfer = NULL;
 161                 q->flag &= ~FWXFERQ_EXTBUF;
 162                 q->psize = 0;
 163                 q->maxq = FWMAXQUEUE;
 164         }
 165         return (0);
 166 }
 167
 168
 169 static int
 170 fw_open (struct dev_open_args *ap)
 171 {
 172         cdev_t dev = ap->a_head.a_dev;
 173         int err = 0;
 174
 175         if (DEV_FWMEM(dev))
 176                 return fwmem_open(ap);
 177
 178         if (dev->si_drv1 != NULL)
 179                 return (EBUSY);
 180
 181 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000
 182         if ((dev->si_flags & SI_NAMED) == 0) {
 183                 int unit = DEV2UNIT(dev);
 184                 int sub = DEV2SUB(dev);
 185
 186                 make_dev(&firewire_ops, minor(dev),
 187                         UID_ROOT, GID_OPERATOR, 0660,
 188                         "fw%d.%d", unit, sub);
 189         }
 190 #endif
 191
 192         dev->si_drv1 = kmalloc(sizeof(struct fw_drv1), M_FW, M_WAITOK | M_ZERO);
 193
 194         return err;
 195 }
 196
 197 static int
 198 fw_close (struct dev_close_args *ap)
 199 {
 200         cdev_t dev = ap->a_head.a_dev;
 201         struct firewire_softc *sc;
 202         struct firewire_comm *fc;
 203         struct fw_drv1 *d;
 204         int unit = DEV2UNIT(dev);
 205         struct fw_xfer *xfer;
 206         struct fw_bind *fwb;
 207         int err = 0;
 208
 209         if (DEV_FWMEM(dev))
 210                 return fwmem_close(ap);
 211
 212         sc = devclass_get_softc(firewire_devclass, unit);
 213         fc = sc->fc;
 214         d = (struct fw_drv1 *)dev->si_drv1;
 215
 216         if (d->ir != NULL) {
 217                 struct fw_xferq *ir = d->ir;
 218
 219                 if ((ir->flag & FWXFERQ_OPEN) == 0)
 220                         return (EINVAL);
 221                 if (ir->flag & FWXFERQ_RUNNING) {
 222                         ir->flag &= ~FWXFERQ_RUNNING;
 223                         fc->irx_disable(fc, ir->dmach);
 224                 }
 225                 /* free extbuf */
 226                 fwdev_freebuf(ir);
 227                 /* drain receiving buffer */
 228                 for (xfer = STAILQ_FIRST(&ir->q);
 229                         xfer != NULL; xfer = STAILQ_FIRST(&ir->q)) {
 230                         ir->queued --;
 231                         STAILQ_REMOVE_HEAD(&ir->q, link);
 232
 233                         xfer->resp = 0;
 234                         fw_xfer_done(xfer);
 235                 }
 236                 /* remove binding */
 237                 for (fwb = STAILQ_FIRST(&ir->binds); fwb != NULL;
 238                                 fwb = STAILQ_FIRST(&ir->binds)) {
 239                         STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist);
 240                         STAILQ_REMOVE_HEAD(&ir->binds, chlist);
 241                         kfree(fwb, M_FW);
 242                 }
 243                 ir->flag &= ~(FWXFERQ_OPEN |
 244                         FWXFERQ_MODEMASK | FWXFERQ_CHTAGMASK);
 245                 d->ir = NULL;
 246
 247         }
 248         if (d->it != NULL) {
 249                 struct fw_xferq *it = d->it;
 250
 251                 if ((it->flag & FWXFERQ_OPEN) == 0)
 252                         return (EINVAL);
 253                 if (it->flag & FWXFERQ_RUNNING) {
 254                         it->flag &= ~FWXFERQ_RUNNING;
 255                         fc->itx_disable(fc, it->dmach);
 256                 }
 257                 /* free extbuf */
 258                 fwdev_freebuf(it);
 259                 it->flag &= ~(FWXFERQ_OPEN |
 260                         FWXFERQ_MODEMASK | FWXFERQ_CHTAGMASK);
 261                 d->it = NULL;
 262         }
 263         kfree(dev->si_drv1, M_FW);
 264         dev->si_drv1 = NULL;
 265
 266         return err;
 267 }
 268
 269 /*
 270  * read request.
 271  */
 272 static int
 273 fw_read (struct dev_read_args *ap)
 274 {
 275         cdev_t dev = ap->a_head.a_dev;
 276         struct uio *uio = ap->a_uio;
 277         struct firewire_softc *sc;
 278         struct fw_xferq *ir;
 279         struct fw_xfer *xfer;
 280         int err = 0, slept = 0;
 281         int unit = DEV2UNIT(dev);
 282         struct fw_pkt *fp;
 283
 284         if (DEV_FWMEM(dev))
 285                 return physread(ap);
 286
 287         sc = devclass_get_softc(firewire_devclass, unit);
 288
 289         ir = ((struct fw_drv1 *)dev->si_drv1)->ir;
 290         if (ir == NULL || ir->buf == NULL)
 291                 return (EIO);
 292
 293 readloop:
 294         xfer = STAILQ_FIRST(&ir->q);
 295         if (ir->stproc == NULL) {
 296                 /* iso bulkxfer */
 297                 ir->stproc = STAILQ_FIRST(&ir->stvalid);
 298                 if (ir->stproc != NULL) {
 299                         crit_enter();
 300                         STAILQ_REMOVE_HEAD(&ir->stvalid, link);
 301                         crit_exit();
 302                         ir->queued = 0;
 303                 }
 304         }
 305         if (xfer == NULL && ir->stproc == NULL) {
 306                 /* no data avaliable */
 307                 if (slept == 0) {
 308                         slept = 1;
 309                         ir->flag |= FWXFERQ_WAKEUP;
 310                         err = tsleep(ir, FWPRI, "fw_read", hz);
 311                         ir->flag &= ~FWXFERQ_WAKEUP;
 312                         if (err == 0)
 313                                 goto readloop;
 314                 } else if (slept == 1)
 315                         err = EIO;
 316                 return err;
 317         } else if(xfer != NULL) {
 318 #if 0 /* XXX broken */
 319                 /* per packet mode or FWACT_CH bind?*/
 320                 crit_enter();
 321                 ir->queued --;
 322                 STAILQ_REMOVE_HEAD(&ir->q, link);
 323                 crit_exit();
 324                 fp = &xfer->recv.hdr;
 325                 if (sc->fc->irx_post != NULL)
 326                         sc->fc->irx_post(sc->fc, fp->mode.ld);
 327                 err = uiomove((void *)fp, 1 /* XXX header size */, uio);
 328                 /* XXX copy payload too */
 329                 /* XXX we should recycle this xfer */
 330 #endif
 331                 fw_xfer_free( xfer);
 332         } else if(ir->stproc != NULL) {
 333                 /* iso bulkxfer */
 334                 fp = (struct fw_pkt *)fwdma_v_addr(ir->buf,
 335                                 ir->stproc->poffset + ir->queued);
 336                 if(sc->fc->irx_post != NULL)
 337                         sc->fc->irx_post(sc->fc, fp->mode.ld);
 338                 if(fp->mode.stream.len == 0){
 339                         err = EIO;
 340                         return err;
 341                 }
 342                 err = uiomove((caddr_t)fp,
 343                         fp->mode.stream.len + sizeof(u_int32_t), uio);
 344                 ir->queued ++;
 345                 if(ir->queued >= ir->bnpacket){
 346                         crit_enter();
 347                         STAILQ_INSERT_TAIL(&ir->stfree, ir->stproc, link);
 348                         crit_exit();
 349                         sc->fc->irx_enable(sc->fc, ir->dmach);
 350                         ir->stproc = NULL;
 351                 }
 352                 if (uio->uio_resid >= ir->psize) {
 353                         slept = -1;
 354                         goto readloop;
 355                 }
 356         }
 357         return err;
 358 }
 359
 360 static int
 361 fw_write (struct dev_write_args *ap)
 362 {
 363         cdev_t dev = ap->a_head.a_dev;
 364         struct uio *uio = ap->a_uio;
 365         int err = 0;
 366         struct firewire_softc *sc;
 367         int unit = DEV2UNIT(dev);
 368         int slept = 0;
 369         struct fw_pkt *fp;
 370         struct firewire_comm *fc;
 371         struct fw_xferq *it;
 372
 373         if (DEV_FWMEM(dev))
 374                 return physwrite(ap);
 375
 376         sc = devclass_get_softc(firewire_devclass, unit);
 377         fc = sc->fc;
 378         it = ((struct fw_drv1 *)dev->si_drv1)->it;
 379         if (it == NULL || it->buf == NULL)
 380                 return (EIO);
 381 isoloop:
 382         if (it->stproc == NULL) {
 383                 it->stproc = STAILQ_FIRST(&it->stfree);
 384                 if (it->stproc != NULL) {
 385                         crit_enter();
 386                         STAILQ_REMOVE_HEAD(&it->stfree, link);
 387                         crit_exit();
 388                         it->queued = 0;
 389                 } else if (slept == 0) {
 390                         slept = 1;
 391                         err = sc->fc->itx_enable(sc->fc, it->dmach);
 392                         if (err)
 393                                 return err;
 394                         err = tsleep(it, FWPRI, "fw_write", hz);
 395                         if (err)
 396                                 return err;
 397                         goto isoloop;
 398                 } else {
 399                         err = EIO;
 400                         return err;
 401                 }
 402         }
 403         fp = (struct fw_pkt *)fwdma_v_addr(it->buf,
 404                         it->stproc->poffset + it->queued);
 405         err = uiomove((caddr_t)fp, sizeof(struct fw_isohdr), uio);
 406         err = uiomove((caddr_t)fp->mode.stream.payload,
 407                                 fp->mode.stream.len, uio);
 408         it->queued ++;
 409         if (it->queued >= it->bnpacket) {
 410                 crit_enter();
 411                 STAILQ_INSERT_TAIL(&it->stvalid, it->stproc, link);
 412                 crit_exit();
 413                 it->stproc = NULL;
 414                 err = sc->fc->itx_enable(sc->fc, it->dmach);
 415         }
 416         if (uio->uio_resid >= sizeof(struct fw_isohdr)) {
 417                 slept = 0;
 418                 goto isoloop;
 419         }
 420         return err;
 421 }
 422 /*
 423  * ioctl support.
 424  */
 425 int
 426 fw_ioctl (struct dev_ioctl_args *ap)
 427 {
 428         cdev_t dev = ap->a_head.a_dev;
 429         struct firewire_softc *sc;
 430         struct firewire_comm *fc;
 431         struct fw_drv1 *d;
 432         int unit = DEV2UNIT(dev);
 433         int i, len, err = 0;
 434         struct fw_device *fwdev;
 435         struct fw_bind *fwb;
 436         struct fw_xferq *ir, *it;
 437         struct fw_xfer *xfer;
 438         struct fw_pkt *fp;
 439         struct fw_devinfo *devinfo;
 440         void *ptr;
 441
 442         struct fw_devlstreq *fwdevlst = (struct fw_devlstreq *)ap->a_data;
 443         struct fw_asyreq *asyreq = (struct fw_asyreq *)ap->a_data;
 444         struct fw_isochreq *ichreq = (struct fw_isochreq *)ap->a_data;
 445         struct fw_isobufreq *ibufreq = (struct fw_isobufreq *)ap->a_data;
 446         struct fw_asybindreq *bindreq = (struct fw_asybindreq *)ap->a_data;
 447         struct fw_crom_buf *crom_buf = (struct fw_crom_buf *)ap->a_data;
 448
 449         if (DEV_FWMEM(dev))
 450                 return fwmem_ioctl(ap);
 451
 452         if (!ap->a_data)
 453                 return(EINVAL);
 454
 455         sc = devclass_get_softc(firewire_devclass, unit);
 456         fc = sc->fc;
 457         d = (struct fw_drv1 *)dev->si_drv1;
 458         ir = d->ir;
 459         it = d->it;
 460
 461         switch (ap->a_cmd) {
 462         case FW_STSTREAM:
 463                 if (it == NULL) {
 464                         for (i = 0; i < fc->nisodma; i ++) {
 465                                 it = fc->it[i];
 466                                 if ((it->flag & FWXFERQ_OPEN) == 0)
 467                                          break;
 468                         }
 469                         if (i >= fc->nisodma) {
 470                                 err = EBUSY;
 471                                 break;
 472                         }
 473                         err = fwdev_allocbuf(fc, it, &d->bufreq.tx);
 474                         if (err)
 475                                 break;
 476                         it->flag |=  FWXFERQ_OPEN;
 477                 }
 478                 it->flag &= ~0xff;
 479                 it->flag |= (0x3f & ichreq->ch);
 480                 it->flag |= ((0x3 & ichreq->tag) << 6);
 481                 d->it = it;
 482                 break;
 483         case FW_GTSTREAM:
 484                 if (it != NULL) {
 485                         ichreq->ch = it->flag & 0x3f;
 486                         ichreq->tag = it->flag >> 2 & 0x3;
 487                 } else
 488                         err = EINVAL;
 489                 break;
 490         case FW_SRSTREAM:
 491                 if (ir == NULL) {
 492                         for (i = 0; i < fc->nisodma; i ++) {
 493                                 ir = fc->ir[i];
 494                                 if ((ir->flag & FWXFERQ_OPEN) == 0)
 495                                         break;
 496                         }
 497                         if (i >= fc->nisodma) {
 498                                 err = EBUSY;
 499                                 break;
 500                         }
 501                         err = fwdev_allocbuf(fc, ir, &d->bufreq.rx);
 502                         if (err)
 503                                 break;
 504                         ir->flag |=  FWXFERQ_OPEN;
 505                 }
 506                 ir->flag &= ~0xff;
 507                 ir->flag |= (0x3f & ichreq->ch);
 508                 ir->flag |= ((0x3 & ichreq->tag) << 6);
 509                 d->ir = ir;
 510                 err = fc->irx_enable(fc, ir->dmach);
 511                 break;
 512         case FW_GRSTREAM:
 513                 if (d->ir != NULL) {
 514                         ichreq->ch = ir->flag & 0x3f;
 515                         ichreq->tag = ir->flag >> 2 & 0x3;
 516                 } else
 517                         err = EINVAL;
 518                 break;
 519         case FW_SSTBUF:
 520                 bcopy(ibufreq, &d->bufreq, sizeof(d->bufreq));
 521                 break;
 522         case FW_GSTBUF:
 523                 bzero(&ibufreq->rx, sizeof(ibufreq->rx));
 524                 if (ir != NULL) {
 525                         ibufreq->rx.nchunk = ir->bnchunk;
 526                         ibufreq->rx.npacket = ir->bnpacket;
 527                         ibufreq->rx.psize = ir->psize;
 528                 }
 529                 bzero(&ibufreq->tx, sizeof(ibufreq->tx));
 530                 if (it != NULL) {
 531                         ibufreq->tx.nchunk = it->bnchunk;
 532                         ibufreq->tx.npacket = it->bnpacket;
 533                         ibufreq->tx.psize = it->psize;
 534                 }
 535                 break;
 536         case FW_ASYREQ:
 537         {
 538                 struct tcode_info *tinfo;
 539                 int pay_len = 0;
 540
 541                 fp = &asyreq->pkt;
 542                 tinfo = &sc->fc->tcode[fp->mode.hdr.tcode];
 543
 544                 if ((tinfo->flag & FWTI_BLOCK_ASY) != 0)
 545                         pay_len = MAX(0, asyreq->req.len - tinfo->hdr_len);
 546
 547                 xfer = fw_xfer_alloc_buf(M_FWXFER, pay_len, PAGE_SIZE/*XXX*/);
 548                 if (xfer == NULL)
 549                         return (ENOMEM);
 550
 551                 switch (asyreq->req.type) {
 552                 case FWASREQNODE:
 553                         break;
 554                 case FWASREQEUI:
 555                         fwdev = fw_noderesolve_eui64(sc->fc,
 556                                                 &asyreq->req.dst.eui);
 557                         if (fwdev == NULL) {
 558                                 device_printf(sc->fc->bdev,
 559                                         "cannot find node\n");
 560                                 err = EINVAL;
 561                                 goto out;
 562                         }
 563                         fp->mode.hdr.dst = FWLOCALBUS | fwdev->dst;
 564                         break;
 565                 case FWASRESTL:
 566                         /* XXX what's this? */
 567                         break;
 568                 case FWASREQSTREAM:
 569                         /* nothing to do */
 570                         break;
 571                 }
 572
 573                 bcopy(fp, (void *)&xfer->send.hdr, tinfo->hdr_len);
 574                 if (pay_len > 0)
 575                         bcopy((char *)fp + tinfo->hdr_len,
 576                             (void *)&xfer->send.payload, pay_len);
 577                 xfer->send.spd = asyreq->req.sped;
 578                 xfer->act.hand = fw_asy_callback;
 579
 580                 if ((err = fw_asyreq(sc->fc, -1, xfer)) != 0)
 581                         goto out;
 582                 if ((err = tsleep(xfer, FWPRI, "asyreq", hz)) != 0)
 583                         goto out;
 584                 if (xfer->resp != 0) {
 585                         err = EIO;
 586                         goto out;
 587                 }
 588                 if ((tinfo->flag & FWTI_TLABEL) == 0)
 589                         goto out;
 590
 591                 /* copy response */
 592                 tinfo = &sc->fc->tcode[xfer->recv.hdr.mode.hdr.tcode];
 593                 if (asyreq->req.len >= xfer->recv.pay_len + tinfo->hdr_len)
 594                         asyreq->req.len = xfer->recv.pay_len;
 595                 else
 596                         err = EINVAL;
 597                 bcopy(&xfer->recv.hdr, fp, tinfo->hdr_len);
 598                 bcopy(xfer->recv.payload, (char *)fp + tinfo->hdr_len,
 599                     MAX(0, asyreq->req.len - tinfo->hdr_len));
 600 out:
 601                 fw_xfer_free_buf(xfer);
 602                 break;
 603         }
 604         case FW_IBUSRST:
 605                 sc->fc->ibr(sc->fc);
 606                 break;
 607         case FW_CBINDADDR:
 608                 fwb = fw_bindlookup(sc->fc,
 609                                 bindreq->start.hi, bindreq->start.lo);
 610                 if(fwb == NULL){
 611                         err = EINVAL;
 612                         break;
 613                 }
 614                 STAILQ_REMOVE(&sc->fc->binds, fwb, fw_bind, fclist);
 615                 STAILQ_REMOVE(&ir->binds, fwb, fw_bind, chlist);
 616                 kfree(fwb, M_FW);
 617                 break;
 618         case FW_SBINDADDR:
 619                 if(bindreq->len <= 0 ){
 620                         err = EINVAL;
 621                         break;
 622                 }
 623                 if(bindreq->start.hi > 0xffff ){
 624                         err = EINVAL;
 625                         break;
 626                 }
 627                 fwb = kmalloc(sizeof (struct fw_bind), M_FW, M_WAITOK);
 628                 fwb->start = ((u_int64_t)bindreq->start.hi << 32) |
 629                     bindreq->start.lo;
 630                 fwb->end = fwb->start +  bindreq->len;
 631                 /* XXX */
 632                 fwb->sub = ir->dmach;
 633                 fwb->act_type = FWACT_CH;
 634
 635                 /* XXX alloc buf */
 636                 xfer = fw_xfer_alloc(M_FWXFER);
 637                 if(xfer == NULL){
 638                         kfree(fwb, M_FW);
 639                         return (ENOMEM);
 640                 }
 641                 xfer->fc = sc->fc;
 642
 643                 crit_enter();
 644                 /* XXX broken. need multiple xfer */
 645                 STAILQ_INIT(&fwb->xferlist);
 646                 STAILQ_INSERT_TAIL(&fwb->xferlist, xfer, link);
 647                 crit_exit();
 648                 err = fw_bindadd(sc->fc, fwb);
 649                 break;
 650         case FW_GDEVLST:
 651                 i = len = 1;
 652                 /* myself */
 653                 devinfo = &fwdevlst->dev[0];
 654                 devinfo->dst = sc->fc->nodeid;
 655                 devinfo->status = 0;    /* XXX */
 656                 devinfo->eui.hi = sc->fc->eui.hi;
 657                 devinfo->eui.lo = sc->fc->eui.lo;
 658                 STAILQ_FOREACH(fwdev, &sc->fc->devices, link) {
 659                         if(len < FW_MAX_DEVLST){
 660                                 devinfo = &fwdevlst->dev[len++];
 661                                 devinfo->dst = fwdev->dst;
 662                                 devinfo->status =
 663                                         (fwdev->status == FWDEVINVAL)?0:1;
 664                                 devinfo->eui.hi = fwdev->eui.hi;
 665                                 devinfo->eui.lo = fwdev->eui.lo;
 666                         }
 667                         i++;
 668                 }
 669                 fwdevlst->n = i;
 670                 fwdevlst->info_len = len;
 671                 break;
 672         case FW_GTPMAP:
 673                 bcopy(sc->fc->topology_map, ap->a_data,
 674                                 (sc->fc->topology_map->crc_len + 1) * 4);
 675                 break;
 676         case FW_GCROM:
 677                 STAILQ_FOREACH(fwdev, &sc->fc->devices, link)
 678                         if (FW_EUI64_EQUAL(fwdev->eui, crom_buf->eui))
 679                                 break;
 680                 if (fwdev == NULL) {
 681                         if (!FW_EUI64_EQUAL(sc->fc->eui, crom_buf->eui)) {
 682                                 err = FWNODE_INVAL;
 683                                 break;
 684                         }
 685                         /* myself */
 686                         ptr = kmalloc(CROMSIZE, M_FW, M_WAITOK);
 687                         len = CROMSIZE;
 688                         for (i = 0; i < CROMSIZE/4; i++)
 689                                 ((u_int32_t *)ptr)[i]
 690                                         = ntohl(sc->fc->config_rom[i]);
 691                 } else {
 692                         /* found */
 693                         ptr = (void *)&fwdev->csrrom[0];
 694                         if (fwdev->rommax < CSRROMOFF)
 695                                 len = 0;
 696                         else
 697                                 len = fwdev->rommax - CSRROMOFF + 4;
 698                 }
 699                 if (crom_buf->len < len && crom_buf->len >= 0)
 700                         len = crom_buf->len;
 701                 else
 702                         crom_buf->len = len;
 703                 err = copyout(ptr, crom_buf->ptr, len);
 704                 if (fwdev == NULL)
 705                         /* myself */
 706                         kfree(ptr, M_FW);
 707                 break;
 708         default:
 709                 sc->fc->ioctl(ap);
 710                 break;
 711         }
 712         return err;
 713 }
 714 int
 715 fw_poll(struct dev_poll_args *ap)
 716 {
 717         cdev_t dev = ap->a_head.a_dev;
 718         struct firewire_softc *sc;
 719         struct fw_xferq *ir;
 720         int revents;
 721         int tmp;
 722         int unit = DEV2UNIT(dev);
 723
 724         if (DEV_FWMEM(dev))
 725                 return fwmem_poll(ap);
 726
 727         sc = devclass_get_softc(firewire_devclass, unit);
 728         ir = ((struct fw_drv1 *)dev->si_drv1)->ir;
 729         revents = 0;
 730         tmp = POLLIN | POLLRDNORM;
 731         if (ap->a_events & tmp) {
 732                 if (STAILQ_FIRST(&ir->q) != NULL)
 733                         revents |= tmp;
 734                 else
 735                         selrecord(curthread, &ir->rsel);
 736         }
 737         tmp = POLLOUT | POLLWRNORM;
 738         if (ap->a_events & tmp) {
 739                 /* XXX should be fixed */
 740                 revents |= tmp;
 741         }
 742         ap->a_events = revents;
 743         return(0);
 744 }
 745
 746 static int
 747 fw_mmap (struct dev_mmap_args *ap)
 748 {
 749         cdev_t dev = ap->a_head.a_dev;
 750         struct firewire_softc *sc;
 751         int unit = DEV2UNIT(dev);
 752
 753         if (DEV_FWMEM(dev))
 754                 return fwmem_mmap(ap);
 755         sc = devclass_get_softc(firewire_devclass, unit);
 756
 757         return EINVAL;
 758 }
 759
 760 static int
 761 fw_strategy(struct dev_strategy_args *ap)
 762 {
 763         cdev_t dev = ap->a_head.a_dev;
 764         struct bio *bio = ap->a_bio;
 765         struct buf *bp = bio->bio_buf;
 766
 767         if (DEV_FWMEM(dev)) {
 768                 fwmem_strategy(ap);
 769                 return(0);
 770         }
 771         bp->b_error = EOPNOTSUPP;
 772         bp->b_flags |= B_ERROR;
 773         bp->b_resid = bp->b_bcount;
 774         biodone(bio);
 775         return(0);
 776 }
 777
 778 int
 779 fwdev_makedev(struct firewire_softc *sc)
 780 {
 781         int unit;
 782
 783         unit = device_get_unit(sc->fc->bdev);
 784         dev_ops_add(&firewire_ops, FW_UNITMASK, FW_UNIT(unit));
 785         return(0);
 786 }
 787
 788 int
 789 fwdev_destroydev(struct firewire_softc *sc)
 790 {
 791         int unit;
 792
 793         unit = device_get_unit(sc->fc->bdev);
 794         dev_ops_remove(&firewire_ops, FW_UNITMASK, FW_UNIT(unit));
 795         return(0);
 796 }
 797
 798 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000
 799 #define NDEVTYPE 2
 800 void
 801 fwdev_clone(void *arg, char *name, int namelen, cdev_t *dev)
 802 {
 803         struct firewire_softc *sc;
 804         char *devnames[NDEVTYPE] = {"fw", "fwmem"};
 805         char *subp = NULL;
 806         int devflag[NDEVTYPE] = {0, FWMEM_FLAG};
 807         int i, unit = 0, sub = 0;
 808
 809         if (*dev != NULL)
 810                 return;
 811
 812         for (i = 0; i < NDEVTYPE; i++)
 813                 if (dev_stdclone(name, &subp, devnames[i], &unit) == 2)
 814                         goto found;
 815         /* not match */
 816         return;
 817 found:
 818
 819         if (subp == NULL || *subp++ != '.')
 820                 return;
 821
 822         /* /dev/fwU.S */
 823         while (isdigit(*subp)) {
 824                 sub *= 10;
 825                 sub += *subp++ - '0';
 826         }
 827         if (*subp != '\0')
 828                 return;
 829
 830         sc = devclass_get_softc(firewire_devclass, unit);
 831         if (sc == NULL)
 832                 return;
 833         *dev = make_dev(&firewire_ops, MAKEMINOR(devflag[i], unit, sub),
 834                        UID_ROOT, GID_OPERATOR, 0660,
 835                        "%s%d.%d", devnames[i], unit, sub);
 836         (*dev)->si_flags |= SI_CHEAPCLONE;
 837         dev_depends(sc->dev, *dev);
 838         return;
 839 }
 840 #endif