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 1.15 2006/09/09 19:34:43 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 #include <machine/bus.h>
  57
  58 #include <sys/ioccom.h>
  59 #include <sys/thread2.h>
  60
  61 #ifdef __DragonFly__
  62 #include "firewire.h"
  63 #include "firewirereg.h"
  64 #include "fwdma.h"
  65 #include "fwmem.h"
  66 #include "iec68113.h"
  67 #else
  68 #include <dev/firewire/firewire.h>
  69 #include <dev/firewire/firewirereg.h>
  70 #include <dev/firewire/fwdma.h>
  71 #include <dev/firewire/fwmem.h>
  72 #include <dev/firewire/iec68113.h>
  73 #endif
  74
  75 #define CDEV_MAJOR 127
  76 #define FWNODE_INVAL 0xffff
  77
  78 static  d_open_t        fw_open;
  79 static  d_close_t       fw_close;
  80 static  d_ioctl_t       fw_ioctl;
  81 static  d_poll_t        fw_poll;
  82 static  d_read_t        fw_read;        /* for Isochronous packet */
  83 static  d_write_t       fw_write;
  84 static  d_mmap_t        fw_mmap;
  85 static  d_strategy_t    fw_strategy;
  86
  87 struct dev_ops firewire_ops =
  88 {
  89         { "fw", CDEV_MAJOR, D_MEM },
  90         .d_open =       fw_open,
  91         .d_close =      fw_close,
  92         .d_read =       fw_read,
  93         .d_write =      fw_write,
  94         .d_ioctl =      fw_ioctl,
  95         .d_poll =       fw_poll,
  96         .d_mmap =       fw_mmap,
  97         .d_strategy =   fw_strategy,
  98 };
  99
 100 struct fw_drv1 {
 101         struct fw_xferq *ir;
 102         struct fw_xferq *it;
 103         struct fw_isobufreq bufreq;
 104 };
 105
 106 static int
 107 fwdev_allocbuf(struct firewire_comm *fc, struct fw_xferq *q,
 108         struct fw_bufspec *b)
 109 {
 110         int i;
 111
 112         if (q->flag & (FWXFERQ_RUNNING | FWXFERQ_EXTBUF))
 113                 return(EBUSY);
 114
 115         q->bulkxfer = (struct fw_bulkxfer *) kmalloc(
 116                 sizeof(struct fw_bulkxfer) * b->nchunk,
 117                 M_FW, M_WAITOK);
 118         if (q->bulkxfer == NULL)
 119                 return(ENOMEM);
 120
 121         b->psize = roundup2(b->psize, sizeof(u_int32_t));
 122         q->buf = fwdma_malloc_multiseg(fc, sizeof(u_int32_t),
 123                         b->psize, b->nchunk * b->npacket, BUS_DMA_WAITOK);
 124
 125         if (q->buf == NULL) {
 126                 kfree(q->bulkxfer, M_FW);
 127                 q->bulkxfer = NULL;
 128                 return(ENOMEM);
 129         }
 130         q->bnchunk = b->nchunk;
 131         q->bnpacket = b->npacket;
 132         q->psize = (b->psize + 3) & ~3;
 133         q->queued = 0;
 134
 135         STAILQ_INIT(&q->stvalid);
 136         STAILQ_INIT(&q->stfree);
 137         STAILQ_INIT(&q->stdma);
 138         q->stproc = NULL;
 139
 140         for(i = 0 ; i < q->bnchunk; i++){
 141                 q->bulkxfer[i].poffset = i * q->bnpacket;
 142                 q->bulkxfer[i].mbuf = NULL;
 143                 STAILQ_INSERT_TAIL(&q->stfree, &q->bulkxfer[i], link);
 144         }
 145
 146         q->flag &= ~FWXFERQ_MODEMASK;
 147         q->flag |= FWXFERQ_STREAM;
 148         q->flag |= FWXFERQ_EXTBUF;
 149
 150         return (0);
 151 }
 152
 153 static int
 154 fwdev_freebuf(struct fw_xferq *q)
 155 {
 156         if (q->flag & FWXFERQ_EXTBUF) {
 157                 if (q->buf != NULL)
 158                         fwdma_free_multiseg(q->buf);
 159                 q->buf = NULL;
 160                 kfree(q->bulkxfer, M_FW);
 161                 q->bulkxfer = NULL;
 162                 q->flag &= ~FWXFERQ_EXTBUF;
 163                 q->psize = 0;
 164                 q->maxq = FWMAXQUEUE;
 165         }
 166         return (0);
 167 }
 168
 169
 170 static int
 171 fw_open (struct dev_open_args *ap)
 172 {
 173         dev_t dev = ap->a_head.a_dev;
 174         int err = 0;
 175
 176         if (DEV_FWMEM(dev))
 177                 return fwmem_open(ap);
 178
 179         if (dev->si_drv1 != NULL)
 180                 return (EBUSY);
 181
 182 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000
 183         if ((dev->si_flags & SI_NAMED) == 0) {
 184                 int unit = DEV2UNIT(dev);
 185                 int sub = DEV2SUB(dev);
 186
 187                 make_dev(&firewire_ops, minor(dev),
 188                         UID_ROOT, GID_OPERATOR, 0660,
 189                         "fw%d.%d", unit, sub);
 190         }
 191 #endif
 192
 193         dev->si_drv1 = kmalloc(sizeof(struct fw_drv1), M_FW, M_WAITOK | M_ZERO);
 194
 195         return err;
 196 }
 197
 198 static int
 199 fw_close (struct dev_close_args *ap)
 200 {
 201         dev_t dev = ap->a_head.a_dev;
 202         struct firewire_softc *sc;
 203         struct firewire_comm *fc;
 204         struct fw_drv1 *d;
 205         int unit = DEV2UNIT(dev);
 206         struct fw_xfer *xfer;
 207         struct fw_bind *fwb;
 208         int err = 0;
 209
 210         if (DEV_FWMEM(dev))
 211                 return fwmem_close(ap);
 212
 213         sc = devclass_get_softc(firewire_devclass, unit);
 214         fc = sc->fc;
 215         d = (struct fw_drv1 *)dev->si_drv1;
 216
 217         if (d->ir != NULL) {
 218                 struct fw_xferq *ir = d->ir;
 219
 220                 if ((ir->flag & FWXFERQ_OPEN) == 0)
 221                         return (EINVAL);
 222                 if (ir->flag & FWXFERQ_RUNNING) {
 223                         ir->flag &= ~FWXFERQ_RUNNING;
 224                         fc->irx_disable(fc, ir->dmach);
 225                 }
 226                 /* free extbuf */
 227                 fwdev_freebuf(ir);
 228                 /* drain receiving buffer */
 229                 for (xfer = STAILQ_FIRST(&ir->q);
 230                         xfer != NULL; xfer = STAILQ_FIRST(&ir->q)) {
 231                         ir->queued --;
 232                         STAILQ_REMOVE_HEAD(&ir->q, link);
 233
 234                         xfer->resp = 0;
 235                         fw_xfer_done(xfer);
 236                 }
 237                 /* remove binding */
 238                 for (fwb = STAILQ_FIRST(&ir->binds); fwb != NULL;
 239                                 fwb = STAILQ_FIRST(&ir->binds)) {
 240                         STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist);
 241                         STAILQ_REMOVE_HEAD(&ir->binds, chlist);
 242                         kfree(fwb, M_FW);
 243                 }
 244                 ir->flag &= ~(FWXFERQ_OPEN |
 245                         FWXFERQ_MODEMASK | FWXFERQ_CHTAGMASK);
 246                 d->ir = NULL;
 247
 248         }
 249         if (d->it != NULL) {
 250                 struct fw_xferq *it = d->it;
 251
 252                 if ((it->flag & FWXFERQ_OPEN) == 0)
 253                         return (EINVAL);
 254                 if (it->flag & FWXFERQ_RUNNING) {
 255                         it->flag &= ~FWXFERQ_RUNNING;
 256                         fc->itx_disable(fc, it->dmach);
 257                 }
 258                 /* free extbuf */
 259                 fwdev_freebuf(it);
 260                 it->flag &= ~(FWXFERQ_OPEN |
 261                         FWXFERQ_MODEMASK | FWXFERQ_CHTAGMASK);
 262                 d->it = NULL;
 263         }
 264         kfree(dev->si_drv1, M_FW);
 265         dev->si_drv1 = NULL;
 266
 267         return err;
 268 }
 269
 270 /*
 271  * read request.
 272  */
 273 static int
 274 fw_read (struct dev_read_args *ap)
 275 {
 276         dev_t dev = ap->a_head.a_dev;
 277         struct uio *uio = ap->a_uio;
 278         struct firewire_softc *sc;
 279         struct fw_xferq *ir;
 280         struct fw_xfer *xfer;
 281         int err = 0, slept = 0;
 282         int unit = DEV2UNIT(dev);
 283         struct fw_pkt *fp;
 284
 285         if (DEV_FWMEM(dev))
 286                 return physread(ap);
 287
 288         sc = devclass_get_softc(firewire_devclass, unit);
 289
 290         ir = ((struct fw_drv1 *)dev->si_drv1)->ir;
 291         if (ir == NULL || ir->buf == NULL)
 292                 return (EIO);
 293
 294 readloop:
 295         xfer = STAILQ_FIRST(&ir->q);
 296         if (ir->stproc == NULL) {
 297                 /* iso bulkxfer */
 298                 ir->stproc = STAILQ_FIRST(&ir->stvalid);
 299                 if (ir->stproc != NULL) {
 300                         crit_enter();
 301                         STAILQ_REMOVE_HEAD(&ir->stvalid, link);
 302                         crit_exit();
 303                         ir->queued = 0;
 304                 }
 305         }
 306         if (xfer == NULL && ir->stproc == NULL) {
 307                 /* no data avaliable */
 308                 if (slept == 0) {
 309                         slept = 1;
 310                         ir->flag |= FWXFERQ_WAKEUP;
 311                         err = tsleep(ir, FWPRI, "fw_read", hz);
 312                         ir->flag &= ~FWXFERQ_WAKEUP;
 313                         if (err == 0)
 314                                 goto readloop;
 315                 } else if (slept == 1)
 316                         err = EIO;
 317                 return err;
 318         } else if(xfer != NULL) {
 319 #if 0 /* XXX broken */
 320                 /* per packet mode or FWACT_CH bind?*/
 321                 crit_enter();
 322                 ir->queued --;
 323                 STAILQ_REMOVE_HEAD(&ir->q, link);
 324                 crit_exit();
 325                 fp = &xfer->recv.hdr;
 326                 if (sc->fc->irx_post != NULL)
 327                         sc->fc->irx_post(sc->fc, fp->mode.ld);
 328                 err = uiomove((void *)fp, 1 /* XXX header size */, uio);
 329                 /* XXX copy payload too */
 330                 /* XXX we should recycle this xfer */
 331 #endif
 332                 fw_xfer_free( xfer);
 333         } else if(ir->stproc != NULL) {
 334                 /* iso bulkxfer */
 335                 fp = (struct fw_pkt *)fwdma_v_addr(ir->buf,
 336                                 ir->stproc->poffset + ir->queued);
 337                 if(sc->fc->irx_post != NULL)
 338                         sc->fc->irx_post(sc->fc, fp->mode.ld);
 339                 if(fp->mode.stream.len == 0){
 340                         err = EIO;
 341                         return err;
 342                 }
 343                 err = uiomove((caddr_t)fp,
 344                         fp->mode.stream.len + sizeof(u_int32_t), uio);
 345                 ir->queued ++;
 346                 if(ir->queued >= ir->bnpacket){
 347                         crit_enter();
 348                         STAILQ_INSERT_TAIL(&ir->stfree, ir->stproc, link);
 349                         crit_exit();
 350                         sc->fc->irx_enable(sc->fc, ir->dmach);
 351                         ir->stproc = NULL;
 352                 }
 353                 if (uio->uio_resid >= ir->psize) {
 354                         slept = -1;
 355                         goto readloop;
 356                 }
 357         }
 358         return err;
 359 }
 360
 361 static int
 362 fw_write (struct dev_write_args *ap)
 363 {
 364         dev_t dev = ap->a_head.a_dev;
 365         struct uio *uio = ap->a_uio;
 366         int err = 0;
 367         struct firewire_softc *sc;
 368         int unit = DEV2UNIT(dev);
 369         int slept = 0;
 370         struct fw_pkt *fp;
 371         struct firewire_comm *fc;
 372         struct fw_xferq *it;
 373
 374         if (DEV_FWMEM(dev))
 375                 return physwrite(ap);
 376
 377         sc = devclass_get_softc(firewire_devclass, unit);
 378         fc = sc->fc;
 379         it = ((struct fw_drv1 *)dev->si_drv1)->it;
 380         if (it == NULL || it->buf == NULL)
 381                 return (EIO);
 382 isoloop:
 383         if (it->stproc == NULL) {
 384                 it->stproc = STAILQ_FIRST(&it->stfree);
 385                 if (it->stproc != NULL) {
 386                         crit_enter();
 387                         STAILQ_REMOVE_HEAD(&it->stfree, link);
 388                         crit_exit();
 389                         it->queued = 0;
 390                 } else if (slept == 0) {
 391                         slept = 1;
 392                         err = sc->fc->itx_enable(sc->fc, it->dmach);
 393                         if (err)
 394                                 return err;
 395                         err = tsleep(it, FWPRI, "fw_write", hz);
 396                         if (err)
 397                                 return err;
 398                         goto isoloop;
 399                 } else {
 400                         err = EIO;
 401                         return err;
 402                 }
 403         }
 404         fp = (struct fw_pkt *)fwdma_v_addr(it->buf,
 405                         it->stproc->poffset + it->queued);
 406         err = uiomove((caddr_t)fp, sizeof(struct fw_isohdr), uio);
 407         err = uiomove((caddr_t)fp->mode.stream.payload,
 408                                 fp->mode.stream.len, uio);
 409         it->queued ++;
 410         if (it->queued >= it->bnpacket) {
 411                 crit_enter();
 412                 STAILQ_INSERT_TAIL(&it->stvalid, it->stproc, link);
 413                 crit_exit();
 414                 it->stproc = NULL;
 415                 err = sc->fc->itx_enable(sc->fc, it->dmach);
 416         }
 417         if (uio->uio_resid >= sizeof(struct fw_isohdr)) {
 418                 slept = 0;
 419                 goto isoloop;
 420         }
 421         return err;
 422 }
 423 /*
 424  * ioctl support.
 425  */
 426 int
 427 fw_ioctl (struct dev_ioctl_args *ap)
 428 {
 429         dev_t dev = ap->a_head.a_dev;
 430         struct firewire_softc *sc;
 431         struct firewire_comm *fc;
 432         struct fw_drv1 *d;
 433         int unit = DEV2UNIT(dev);
 434         int i, len, err = 0;
 435         struct fw_device *fwdev;
 436         struct fw_bind *fwb;
 437         struct fw_xferq *ir, *it;
 438         struct fw_xfer *xfer;
 439         struct fw_pkt *fp;
 440         struct fw_devinfo *devinfo;
 441         void *ptr;
 442
 443         struct fw_devlstreq *fwdevlst = (struct fw_devlstreq *)ap->a_data;
 444         struct fw_asyreq *asyreq = (struct fw_asyreq *)ap->a_data;
 445         struct fw_isochreq *ichreq = (struct fw_isochreq *)ap->a_data;
 446         struct fw_isobufreq *ibufreq = (struct fw_isobufreq *)ap->a_data;
 447         struct fw_asybindreq *bindreq = (struct fw_asybindreq *)ap->a_data;
 448         struct fw_crom_buf *crom_buf = (struct fw_crom_buf *)ap->a_data;
 449
 450         if (DEV_FWMEM(dev))
 451                 return fwmem_ioctl(ap);
 452
 453         if (!ap->a_data)
 454                 return(EINVAL);
 455
 456         sc = devclass_get_softc(firewire_devclass, unit);
 457         fc = sc->fc;
 458         d = (struct fw_drv1 *)dev->si_drv1;
 459         ir = d->ir;
 460         it = d->it;
 461
 462         switch (ap->a_cmd) {
 463         case FW_STSTREAM:
 464                 if (it == NULL) {
 465                         for (i = 0; i < fc->nisodma; i ++) {
 466                                 it = fc->it[i];
 467                                 if ((it->flag & FWXFERQ_OPEN) == 0)
 468                                          break;
 469                         }
 470                         if (i >= fc->nisodma) {
 471                                 err = EBUSY;
 472                                 break;
 473                         }
 474                         err = fwdev_allocbuf(fc, it, &d->bufreq.tx);
 475                         if (err)
 476                                 break;
 477                         it->flag |=  FWXFERQ_OPEN;
 478                 }
 479                 it->flag &= ~0xff;
 480                 it->flag |= (0x3f & ichreq->ch);
 481                 it->flag |= ((0x3 & ichreq->tag) << 6);
 482                 d->it = it;
 483                 break;
 484         case FW_GTSTREAM:
 485                 if (it != NULL) {
 486                         ichreq->ch = it->flag & 0x3f;
 487                         ichreq->tag = it->flag >> 2 & 0x3;
 488                 } else
 489                         err = EINVAL;
 490                 break;
 491         case FW_SRSTREAM:
 492                 if (ir == NULL) {
 493                         for (i = 0; i < fc->nisodma; i ++) {
 494                                 ir = fc->ir[i];
 495                                 if ((ir->flag & FWXFERQ_OPEN) == 0)
 496                                         break;
 497                         }
 498                         if (i >= fc->nisodma) {
 499                                 err = EBUSY;
 500                                 break;
 501                         }
 502                         err = fwdev_allocbuf(fc, ir, &d->bufreq.rx);
 503                         if (err)
 504                                 break;
 505                         ir->flag |=  FWXFERQ_OPEN;
 506                 }
 507                 ir->flag &= ~0xff;
 508                 ir->flag |= (0x3f & ichreq->ch);
 509                 ir->flag |= ((0x3 & ichreq->tag) << 6);
 510                 d->ir = ir;
 511                 err = fc->irx_enable(fc, ir->dmach);
 512                 break;
 513         case FW_GRSTREAM:
 514                 if (d->ir != NULL) {
 515                         ichreq->ch = ir->flag & 0x3f;
 516                         ichreq->tag = ir->flag >> 2 & 0x3;
 517                 } else
 518                         err = EINVAL;
 519                 break;
 520         case FW_SSTBUF:
 521                 bcopy(ibufreq, &d->bufreq, sizeof(d->bufreq));
 522                 break;
 523         case FW_GSTBUF:
 524                 bzero(&ibufreq->rx, sizeof(ibufreq->rx));
 525                 if (ir != NULL) {
 526                         ibufreq->rx.nchunk = ir->bnchunk;
 527                         ibufreq->rx.npacket = ir->bnpacket;
 528                         ibufreq->rx.psize = ir->psize;
 529                 }
 530                 bzero(&ibufreq->tx, sizeof(ibufreq->tx));
 531                 if (it != NULL) {
 532                         ibufreq->tx.nchunk = it->bnchunk;
 533                         ibufreq->tx.npacket = it->bnpacket;
 534                         ibufreq->tx.psize = it->psize;
 535                 }
 536                 break;
 537         case FW_ASYREQ:
 538         {
 539                 struct tcode_info *tinfo;
 540                 int pay_len = 0;
 541
 542                 fp = &asyreq->pkt;
 543                 tinfo = &sc->fc->tcode[fp->mode.hdr.tcode];
 544
 545                 if ((tinfo->flag & FWTI_BLOCK_ASY) != 0)
 546                         pay_len = MAX(0, asyreq->req.len - tinfo->hdr_len);
 547
 548                 xfer = fw_xfer_alloc_buf(M_FWXFER, pay_len, PAGE_SIZE/*XXX*/);
 549                 if (xfer == NULL)
 550                         return (ENOMEM);
 551
 552                 switch (asyreq->req.type) {
 553                 case FWASREQNODE:
 554                         break;
 555                 case FWASREQEUI:
 556                         fwdev = fw_noderesolve_eui64(sc->fc,
 557                                                 &asyreq->req.dst.eui);
 558                         if (fwdev == NULL) {
 559                                 device_printf(sc->fc->bdev,
 560                                         "cannot find node\n");
 561                                 err = EINVAL;
 562                                 goto out;
 563                         }
 564                         fp->mode.hdr.dst = FWLOCALBUS | fwdev->dst;
 565                         break;
 566                 case FWASRESTL:
 567                         /* XXX what's this? */
 568                         break;
 569                 case FWASREQSTREAM:
 570                         /* nothing to do */
 571                         break;
 572                 }
 573
 574                 bcopy(fp, (void *)&xfer->send.hdr, tinfo->hdr_len);
 575                 if (pay_len > 0)
 576                         bcopy((char *)fp + tinfo->hdr_len,
 577                             (void *)&xfer->send.payload, pay_len);
 578                 xfer->send.spd = asyreq->req.sped;
 579                 xfer->act.hand = fw_asy_callback;
 580
 581                 if ((err = fw_asyreq(sc->fc, -1, xfer)) != 0)
 582                         goto out;
 583                 if ((err = tsleep(xfer, FWPRI, "asyreq", hz)) != 0)
 584                         goto out;
 585                 if (xfer->resp != 0) {
 586                         err = EIO;
 587                         goto out;
 588                 }
 589                 if ((tinfo->flag & FWTI_TLABEL) == 0)
 590                         goto out;
 591
 592                 /* copy response */
 593                 tinfo = &sc->fc->tcode[xfer->recv.hdr.mode.hdr.tcode];
 594                 if (asyreq->req.len >= xfer->recv.pay_len + tinfo->hdr_len)
 595                         asyreq->req.len = xfer->recv.pay_len;
 596                 else
 597                         err = EINVAL;
 598                 bcopy(&xfer->recv.hdr, fp, tinfo->hdr_len);
 599                 bcopy(xfer->recv.payload, (char *)fp + tinfo->hdr_len,
 600                     MAX(0, asyreq->req.len - tinfo->hdr_len));
 601 out:
 602                 fw_xfer_free_buf(xfer);
 603                 break;
 604         }
 605         case FW_IBUSRST:
 606                 sc->fc->ibr(sc->fc);
 607                 break;
 608         case FW_CBINDADDR:
 609                 fwb = fw_bindlookup(sc->fc,
 610                                 bindreq->start.hi, bindreq->start.lo);
 611                 if(fwb == NULL){
 612                         err = EINVAL;
 613                         break;
 614                 }
 615                 STAILQ_REMOVE(&sc->fc->binds, fwb, fw_bind, fclist);
 616                 STAILQ_REMOVE(&ir->binds, fwb, fw_bind, chlist);
 617                 kfree(fwb, M_FW);
 618                 break;
 619         case FW_SBINDADDR:
 620                 if(bindreq->len <= 0 ){
 621                         err = EINVAL;
 622                         break;
 623                 }
 624                 if(bindreq->start.hi > 0xffff ){
 625                         err = EINVAL;
 626                         break;
 627                 }
 628                 fwb = kmalloc(sizeof (struct fw_bind), M_FW, M_WAITOK);
 629                 fwb->start = ((u_int64_t)bindreq->start.hi << 32) |
 630                     bindreq->start.lo;
 631                 fwb->end = fwb->start +  bindreq->len;
 632                 /* XXX */
 633                 fwb->sub = ir->dmach;
 634                 fwb->act_type = FWACT_CH;
 635
 636                 /* XXX alloc buf */
 637                 xfer = fw_xfer_alloc(M_FWXFER);
 638                 if(xfer == NULL){
 639                         kfree(fwb, M_FW);
 640                         return (ENOMEM);
 641                 }
 642                 xfer->fc = sc->fc;
 643
 644                 crit_enter();
 645                 /* XXX broken. need multiple xfer */
 646                 STAILQ_INIT(&fwb->xferlist);
 647                 STAILQ_INSERT_TAIL(&fwb->xferlist, xfer, link);
 648                 crit_exit();
 649                 err = fw_bindadd(sc->fc, fwb);
 650                 break;
 651         case FW_GDEVLST:
 652                 i = len = 1;
 653                 /* myself */
 654                 devinfo = &fwdevlst->dev[0];
 655                 devinfo->dst = sc->fc->nodeid;
 656                 devinfo->status = 0;    /* XXX */
 657                 devinfo->eui.hi = sc->fc->eui.hi;
 658                 devinfo->eui.lo = sc->fc->eui.lo;
 659                 STAILQ_FOREACH(fwdev, &sc->fc->devices, link) {
 660                         if(len < FW_MAX_DEVLST){
 661                                 devinfo = &fwdevlst->dev[len++];
 662                                 devinfo->dst = fwdev->dst;
 663                                 devinfo->status =
 664                                         (fwdev->status == FWDEVINVAL)?0:1;
 665                                 devinfo->eui.hi = fwdev->eui.hi;
 666                                 devinfo->eui.lo = fwdev->eui.lo;
 667                         }
 668                         i++;
 669                 }
 670                 fwdevlst->n = i;
 671                 fwdevlst->info_len = len;
 672                 break;
 673         case FW_GTPMAP:
 674                 bcopy(sc->fc->topology_map, ap->a_data,
 675                                 (sc->fc->topology_map->crc_len + 1) * 4);
 676                 break;
 677         case FW_GCROM:
 678                 STAILQ_FOREACH(fwdev, &sc->fc->devices, link)
 679                         if (FW_EUI64_EQUAL(fwdev->eui, crom_buf->eui))
 680                                 break;
 681                 if (fwdev == NULL) {
 682                         if (!FW_EUI64_EQUAL(sc->fc->eui, crom_buf->eui)) {
 683                                 err = FWNODE_INVAL;
 684                                 break;
 685                         }
 686                         /* myself */
 687                         ptr = kmalloc(CROMSIZE, M_FW, M_WAITOK);
 688                         len = CROMSIZE;
 689                         for (i = 0; i < CROMSIZE/4; i++)
 690                                 ((u_int32_t *)ptr)[i]
 691                                         = ntohl(sc->fc->config_rom[i]);
 692                 } else {
 693                         /* found */
 694                         ptr = (void *)&fwdev->csrrom[0];
 695                         if (fwdev->rommax < CSRROMOFF)
 696                                 len = 0;
 697                         else
 698                                 len = fwdev->rommax - CSRROMOFF + 4;
 699                 }
 700                 if (crom_buf->len < len)
 701                         len = crom_buf->len;
 702                 else
 703                         crom_buf->len = len;
 704                 err = copyout(ptr, crom_buf->ptr, len);
 705                 if (fwdev == NULL)
 706                         /* myself */
 707                         kfree(ptr, M_FW);
 708                 break;
 709         default:
 710                 sc->fc->ioctl(ap);
 711                 break;
 712         }
 713         return err;
 714 }
 715 int
 716 fw_poll(struct dev_poll_args *ap)
 717 {
 718         dev_t dev = ap->a_head.a_dev;
 719         struct firewire_softc *sc;
 720         struct fw_xferq *ir;
 721         int revents;
 722         int tmp;
 723         int unit = DEV2UNIT(dev);
 724
 725         if (DEV_FWMEM(dev))
 726                 return fwmem_poll(ap);
 727
 728         sc = devclass_get_softc(firewire_devclass, unit);
 729         ir = ((struct fw_drv1 *)dev->si_drv1)->ir;
 730         revents = 0;
 731         tmp = POLLIN | POLLRDNORM;
 732         if (ap->a_events & tmp) {
 733                 if (STAILQ_FIRST(&ir->q) != NULL)
 734                         revents |= tmp;
 735                 else
 736                         selrecord(curthread, &ir->rsel);
 737         }
 738         tmp = POLLOUT | POLLWRNORM;
 739         if (ap->a_events & tmp) {
 740                 /* XXX should be fixed */
 741                 revents |= tmp;
 742         }
 743         ap->a_events = revents;
 744         return(0);
 745 }
 746
 747 static int
 748 fw_mmap (struct dev_mmap_args *ap)
 749 {
 750         dev_t dev = ap->a_head.a_dev;
 751         struct firewire_softc *sc;
 752         int unit = DEV2UNIT(dev);
 753
 754         if (DEV_FWMEM(dev))
 755                 return fwmem_mmap(ap);
 756         sc = devclass_get_softc(firewire_devclass, unit);
 757
 758         return EINVAL;
 759 }
 760
 761 static int
 762 fw_strategy(struct dev_strategy_args *ap)
 763 {
 764         dev_t dev = ap->a_head.a_dev;
 765         struct bio *bio = ap->a_bio;
 766         struct buf *bp = bio->bio_buf;
 767
 768         if (DEV_FWMEM(dev)) {
 769                 fwmem_strategy(ap);
 770                 return(0);
 771         }
 772         bp->b_error = EOPNOTSUPP;
 773         bp->b_flags |= B_ERROR;
 774         bp->b_resid = bp->b_bcount;
 775         biodone(bio);
 776         return(0);
 777 }
 778
 779 int
 780 fwdev_makedev(struct firewire_softc *sc)
 781 {
 782         int unit;
 783
 784         unit = device_get_unit(sc->fc->bdev);
 785         dev_ops_add(&firewire_ops, FW_UNITMASK, FW_UNIT(unit));
 786         return(0);
 787 }
 788
 789 int
 790 fwdev_destroydev(struct firewire_softc *sc)
 791 {
 792         int unit;
 793
 794         unit = device_get_unit(sc->fc->bdev);
 795         dev_ops_remove(&firewire_ops, FW_UNITMASK, FW_UNIT(unit));
 796         return(0);
 797 }
 798
 799 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000
 800 #define NDEVTYPE 2
 801 void
 802 fwdev_clone(void *arg, char *name, int namelen, dev_t *dev)
 803 {
 804         struct firewire_softc *sc;
 805         char *devnames[NDEVTYPE] = {"fw", "fwmem"};
 806         char *subp = NULL;
 807         int devflag[NDEVTYPE] = {0, FWMEM_FLAG};
 808         int i, unit = 0, sub = 0;
 809
 810         if (*dev != NOCDEV)
 811                 return;
 812
 813         for (i = 0; i < NDEVTYPE; i++)
 814                 if (dev_stdclone(name, &subp, devnames[i], &unit) == 2)
 815                         goto found;
 816         /* not match */
 817         return;
 818 found:
 819
 820         if (subp == NULL || *subp++ != '.')
 821                 return;
 822
 823         /* /dev/fwU.S */
 824         while (isdigit(*subp)) {
 825                 sub *= 10;
 826                 sub += *subp++ - '0';
 827         }
 828         if (*subp != '\0')
 829                 return;
 830
 831         sc = devclass_get_softc(firewire_devclass, unit);
 832         if (sc == NULL)
 833                 return;
 834         *dev = make_dev(&firewire_ops, MAKEMINOR(devflag[i], unit, sub),
 835                        UID_ROOT, GID_OPERATOR, 0660,
 836                        "%s%d.%d", devnames[i], unit, sub);
 837         (*dev)->si_flags |= SI_CHEAPCLONE;
 838         dev_depends(sc->dev, *dev);
 839         return;
 840 }
 841 #endif