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 1.20 2008/01/06 16:55:49 swildner 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
 118         b->psize = roundup2(b->psize, sizeof(u_int32_t));
 119         q->buf = fwdma_malloc_multiseg(fc, sizeof(u_int32_t),
 120                         b->psize, b->nchunk * b->npacket, BUS_DMA_WAITOK);
 121
 122         if (q->buf == NULL) {
 123                 kfree(q->bulkxfer, M_FW);
 124                 q->bulkxfer = NULL;
 125                 return(ENOMEM);
 126         }
 127         q->bnchunk = b->nchunk;
 128         q->bnpacket = b->npacket;
 129         q->psize = (b->psize + 3) & ~3;
 130         q->queued = 0;
 131
 132         STAILQ_INIT(&q->stvalid);
 133         STAILQ_INIT(&q->stfree);
 134         STAILQ_INIT(&q->stdma);
 135         q->stproc = NULL;
 136
 137         for(i = 0 ; i < q->bnchunk; i++){
 138                 q->bulkxfer[i].poffset = i * q->bnpacket;
 139                 q->bulkxfer[i].mbuf = NULL;
 140                 STAILQ_INSERT_TAIL(&q->stfree, &q->bulkxfer[i], link);
 141         }
 142
 143         q->flag &= ~FWXFERQ_MODEMASK;
 144         q->flag |= FWXFERQ_STREAM;
 145         q->flag |= FWXFERQ_EXTBUF;
 146
 147         return (0);
 148 }
 149
 150 static int
 151 fwdev_freebuf(struct fw_xferq *q)
 152 {
 153         if (q->flag & FWXFERQ_EXTBUF) {
 154                 if (q->buf != NULL)
 155                         fwdma_free_multiseg(q->buf);
 156                 q->buf = NULL;
 157                 kfree(q->bulkxfer, M_FW);
 158                 q->bulkxfer = NULL;
 159                 q->flag &= ~FWXFERQ_EXTBUF;
 160                 q->psize = 0;
 161                 q->maxq = FWMAXQUEUE;
 162         }
 163         return (0);
 164 }
 165
 166
 167 static int
 168 fw_open (struct dev_open_args *ap)
 169 {
 170         cdev_t dev = ap->a_head.a_dev;
 171         int err = 0;
 172
 173         if (DEV_FWMEM(dev))
 174                 return fwmem_open(ap);
 175
 176         if (dev->si_drv1 != NULL)
 177                 return (EBUSY);
 178
 179 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000
 180         if ((dev->si_flags & SI_NAMED) == 0) {
 181                 int unit = DEV2UNIT(dev);
 182                 int sub = DEV2SUB(dev);
 183
 184                 make_dev(&firewire_ops, minor(dev),
 185                         UID_ROOT, GID_OPERATOR, 0660,
 186                         "fw%d.%d", unit, sub);
 187         }
 188 #endif
 189
 190         dev->si_drv1 = kmalloc(sizeof(struct fw_drv1), M_FW, M_WAITOK | M_ZERO);
 191
 192         return err;
 193 }
 194
 195 static int
 196 fw_close (struct dev_close_args *ap)
 197 {
 198         cdev_t dev = ap->a_head.a_dev;
 199         struct firewire_softc *sc;
 200         struct firewire_comm *fc;
 201         struct fw_drv1 *d;
 202         int unit = DEV2UNIT(dev);
 203         struct fw_xfer *xfer;
 204         struct fw_bind *fwb;
 205         int err = 0;
 206
 207         if (DEV_FWMEM(dev))
 208                 return fwmem_close(ap);
 209
 210         sc = devclass_get_softc(firewire_devclass, unit);
 211         fc = sc->fc;
 212         d = (struct fw_drv1 *)dev->si_drv1;
 213
 214         if (d->ir != NULL) {
 215                 struct fw_xferq *ir = d->ir;
 216
 217                 if ((ir->flag & FWXFERQ_OPEN) == 0)
 218                         return (EINVAL);
 219                 if (ir->flag & FWXFERQ_RUNNING) {
 220                         ir->flag &= ~FWXFERQ_RUNNING;
 221                         fc->irx_disable(fc, ir->dmach);
 222                 }
 223                 /* free extbuf */
 224                 fwdev_freebuf(ir);
 225                 /* drain receiving buffer */
 226                 for (xfer = STAILQ_FIRST(&ir->q);
 227                         xfer != NULL; xfer = STAILQ_FIRST(&ir->q)) {
 228                         ir->queued --;
 229                         STAILQ_REMOVE_HEAD(&ir->q, link);
 230
 231                         xfer->resp = 0;
 232                         fw_xfer_done(xfer);
 233                 }
 234                 /* remove binding */
 235                 for (fwb = STAILQ_FIRST(&ir->binds); fwb != NULL;
 236                                 fwb = STAILQ_FIRST(&ir->binds)) {
 237                         STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist);
 238                         STAILQ_REMOVE_HEAD(&ir->binds, chlist);
 239                         kfree(fwb, M_FW);
 240                 }
 241                 ir->flag &= ~(FWXFERQ_OPEN |
 242                         FWXFERQ_MODEMASK | FWXFERQ_CHTAGMASK);
 243                 d->ir = NULL;
 244
 245         }
 246         if (d->it != NULL) {
 247                 struct fw_xferq *it = d->it;
 248
 249                 if ((it->flag & FWXFERQ_OPEN) == 0)
 250                         return (EINVAL);
 251                 if (it->flag & FWXFERQ_RUNNING) {
 252                         it->flag &= ~FWXFERQ_RUNNING;
 253                         fc->itx_disable(fc, it->dmach);
 254                 }
 255                 /* free extbuf */
 256                 fwdev_freebuf(it);
 257                 it->flag &= ~(FWXFERQ_OPEN |
 258                         FWXFERQ_MODEMASK | FWXFERQ_CHTAGMASK);
 259                 d->it = NULL;
 260         }
 261         kfree(dev->si_drv1, M_FW);
 262         dev->si_drv1 = NULL;
 263
 264         return err;
 265 }
 266
 267 /*
 268  * read request.
 269  */
 270 static int
 271 fw_read (struct dev_read_args *ap)
 272 {
 273         cdev_t dev = ap->a_head.a_dev;
 274         struct uio *uio = ap->a_uio;
 275         struct firewire_softc *sc;
 276         struct fw_xferq *ir;
 277         struct fw_xfer *xfer;
 278         int err = 0, slept = 0;
 279         int unit = DEV2UNIT(dev);
 280         struct fw_pkt *fp;
 281
 282         if (DEV_FWMEM(dev))
 283                 return physread(ap);
 284
 285         sc = devclass_get_softc(firewire_devclass, unit);
 286
 287         ir = ((struct fw_drv1 *)dev->si_drv1)->ir;
 288         if (ir == NULL || ir->buf == NULL)
 289                 return (EIO);
 290
 291 readloop:
 292         xfer = STAILQ_FIRST(&ir->q);
 293         if (ir->stproc == NULL) {
 294                 /* iso bulkxfer */
 295                 ir->stproc = STAILQ_FIRST(&ir->stvalid);
 296                 if (ir->stproc != NULL) {
 297                         crit_enter();
 298                         STAILQ_REMOVE_HEAD(&ir->stvalid, link);
 299                         crit_exit();
 300                         ir->queued = 0;
 301                 }
 302         }
 303         if (xfer == NULL && ir->stproc == NULL) {
 304                 /* no data avaliable */
 305                 if (slept == 0) {
 306                         slept = 1;
 307                         ir->flag |= FWXFERQ_WAKEUP;
 308                         err = tsleep(ir, FWPRI, "fw_read", hz);
 309                         ir->flag &= ~FWXFERQ_WAKEUP;
 310                         if (err == 0)
 311                                 goto readloop;
 312                 } else if (slept == 1)
 313                         err = EIO;
 314                 return err;
 315         } else if(xfer != NULL) {
 316 #if 0 /* XXX broken */
 317                 /* per packet mode or FWACT_CH bind?*/
 318                 crit_enter();
 319                 ir->queued --;
 320                 STAILQ_REMOVE_HEAD(&ir->q, link);
 321                 crit_exit();
 322                 fp = &xfer->recv.hdr;
 323                 if (sc->fc->irx_post != NULL)
 324                         sc->fc->irx_post(sc->fc, fp->mode.ld);
 325                 err = uiomove((void *)fp, 1 /* XXX header size */, uio);
 326                 /* XXX copy payload too */
 327                 /* XXX we should recycle this xfer */
 328 #endif
 329                 fw_xfer_free( xfer);
 330         } else if(ir->stproc != NULL) {
 331                 /* iso bulkxfer */
 332                 fp = (struct fw_pkt *)fwdma_v_addr(ir->buf,
 333                                 ir->stproc->poffset + ir->queued);
 334                 if(sc->fc->irx_post != NULL)
 335                         sc->fc->irx_post(sc->fc, fp->mode.ld);
 336                 if(fp->mode.stream.len == 0){
 337                         err = EIO;
 338                         return err;
 339                 }
 340                 err = uiomove((caddr_t)fp,
 341                         fp->mode.stream.len + sizeof(u_int32_t), uio);
 342                 ir->queued ++;
 343                 if(ir->queued >= ir->bnpacket){
 344                         crit_enter();
 345                         STAILQ_INSERT_TAIL(&ir->stfree, ir->stproc, link);
 346                         crit_exit();
 347                         sc->fc->irx_enable(sc->fc, ir->dmach);
 348                         ir->stproc = NULL;
 349                 }
 350                 if (uio->uio_resid >= ir->psize) {
 351                         slept = -1;
 352                         goto readloop;
 353                 }
 354         }
 355         return err;
 356 }
 357
 358 static int
 359 fw_write (struct dev_write_args *ap)
 360 {
 361         cdev_t dev = ap->a_head.a_dev;
 362         struct uio *uio = ap->a_uio;
 363         int err = 0;
 364         struct firewire_softc *sc;
 365         int unit = DEV2UNIT(dev);
 366         int slept = 0;
 367         struct fw_pkt *fp;
 368         struct firewire_comm *fc;
 369         struct fw_xferq *it;
 370
 371         if (DEV_FWMEM(dev))
 372                 return physwrite(ap);
 373
 374         sc = devclass_get_softc(firewire_devclass, unit);
 375         fc = sc->fc;
 376         it = ((struct fw_drv1 *)dev->si_drv1)->it;
 377         if (it == NULL || it->buf == NULL)
 378                 return (EIO);
 379 isoloop:
 380         if (it->stproc == NULL) {
 381                 it->stproc = STAILQ_FIRST(&it->stfree);
 382                 if (it->stproc != NULL) {
 383                         crit_enter();
 384                         STAILQ_REMOVE_HEAD(&it->stfree, link);
 385                         crit_exit();
 386                         it->queued = 0;
 387                 } else if (slept == 0) {
 388                         slept = 1;
 389                         err = sc->fc->itx_enable(sc->fc, it->dmach);
 390                         if (err)
 391                                 return err;
 392                         err = tsleep(it, FWPRI, "fw_write", hz);
 393                         if (err)
 394                                 return err;
 395                         goto isoloop;
 396                 } else {
 397                         err = EIO;
 398                         return err;
 399                 }
 400         }
 401         fp = (struct fw_pkt *)fwdma_v_addr(it->buf,
 402                         it->stproc->poffset + it->queued);
 403         err = uiomove((caddr_t)fp, sizeof(struct fw_isohdr), uio);
 404         err = uiomove((caddr_t)fp->mode.stream.payload,
 405                                 fp->mode.stream.len, uio);
 406         it->queued ++;
 407         if (it->queued >= it->bnpacket) {
 408                 crit_enter();
 409                 STAILQ_INSERT_TAIL(&it->stvalid, it->stproc, link);
 410                 crit_exit();
 411                 it->stproc = NULL;
 412                 err = sc->fc->itx_enable(sc->fc, it->dmach);
 413         }
 414         if (uio->uio_resid >= sizeof(struct fw_isohdr)) {
 415                 slept = 0;
 416                 goto isoloop;
 417         }
 418         return err;
 419 }
 420 /*
 421  * ioctl support.
 422  */
 423 int
 424 fw_ioctl (struct dev_ioctl_args *ap)
 425 {
 426         cdev_t dev = ap->a_head.a_dev;
 427         struct firewire_softc *sc;
 428         struct firewire_comm *fc;
 429         struct fw_drv1 *d;
 430         int unit = DEV2UNIT(dev);
 431         int i, len, err = 0;
 432         struct fw_device *fwdev;
 433         struct fw_bind *fwb;
 434         struct fw_xferq *ir, *it;
 435         struct fw_xfer *xfer;
 436         struct fw_pkt *fp;
 437         struct fw_devinfo *devinfo;
 438         void *ptr;
 439
 440         struct fw_devlstreq *fwdevlst = (struct fw_devlstreq *)ap->a_data;
 441         struct fw_asyreq *asyreq = (struct fw_asyreq *)ap->a_data;
 442         struct fw_isochreq *ichreq = (struct fw_isochreq *)ap->a_data;
 443         struct fw_isobufreq *ibufreq = (struct fw_isobufreq *)ap->a_data;
 444         struct fw_asybindreq *bindreq = (struct fw_asybindreq *)ap->a_data;
 445         struct fw_crom_buf *crom_buf = (struct fw_crom_buf *)ap->a_data;
 446
 447         if (DEV_FWMEM(dev))
 448                 return fwmem_ioctl(ap);
 449
 450         if (!ap->a_data)
 451                 return(EINVAL);
 452
 453         sc = devclass_get_softc(firewire_devclass, unit);
 454         fc = sc->fc;
 455         d = (struct fw_drv1 *)dev->si_drv1;
 456         ir = d->ir;
 457         it = d->it;
 458
 459         switch (ap->a_cmd) {
 460         case FW_STSTREAM:
 461                 if (it == NULL) {
 462                         for (i = 0; i < fc->nisodma; i ++) {
 463                                 it = fc->it[i];
 464                                 if ((it->flag & FWXFERQ_OPEN) == 0)
 465                                          break;
 466                         }
 467                         if (i >= fc->nisodma) {
 468                                 err = EBUSY;
 469                                 break;
 470                         }
 471                         err = fwdev_allocbuf(fc, it, &d->bufreq.tx);
 472                         if (err)
 473                                 break;
 474                         it->flag |=  FWXFERQ_OPEN;
 475                 }
 476                 it->flag &= ~0xff;
 477                 it->flag |= (0x3f & ichreq->ch);
 478                 it->flag |= ((0x3 & ichreq->tag) << 6);
 479                 d->it = it;
 480                 break;
 481         case FW_GTSTREAM:
 482                 if (it != NULL) {
 483                         ichreq->ch = it->flag & 0x3f;
 484                         ichreq->tag = it->flag >> 2 & 0x3;
 485                 } else
 486                         err = EINVAL;
 487                 break;
 488         case FW_SRSTREAM:
 489                 if (ir == NULL) {
 490                         for (i = 0; i < fc->nisodma; i ++) {
 491                                 ir = fc->ir[i];
 492                                 if ((ir->flag & FWXFERQ_OPEN) == 0)
 493                                         break;
 494                         }
 495                         if (i >= fc->nisodma) {
 496                                 err = EBUSY;
 497                                 break;
 498                         }
 499                         err = fwdev_allocbuf(fc, ir, &d->bufreq.rx);
 500                         if (err)
 501                                 break;
 502                         ir->flag |=  FWXFERQ_OPEN;
 503                 }
 504                 ir->flag &= ~0xff;
 505                 ir->flag |= (0x3f & ichreq->ch);
 506                 ir->flag |= ((0x3 & ichreq->tag) << 6);
 507                 d->ir = ir;
 508                 err = fc->irx_enable(fc, ir->dmach);
 509                 break;
 510         case FW_GRSTREAM:
 511                 if (d->ir != NULL) {
 512                         ichreq->ch = ir->flag & 0x3f;
 513                         ichreq->tag = ir->flag >> 2 & 0x3;
 514                 } else
 515                         err = EINVAL;
 516                 break;
 517         case FW_SSTBUF:
 518                 bcopy(ibufreq, &d->bufreq, sizeof(d->bufreq));
 519                 break;
 520         case FW_GSTBUF:
 521                 bzero(&ibufreq->rx, sizeof(ibufreq->rx));
 522                 if (ir != NULL) {
 523                         ibufreq->rx.nchunk = ir->bnchunk;
 524                         ibufreq->rx.npacket = ir->bnpacket;
 525                         ibufreq->rx.psize = ir->psize;
 526                 }
 527                 bzero(&ibufreq->tx, sizeof(ibufreq->tx));
 528                 if (it != NULL) {
 529                         ibufreq->tx.nchunk = it->bnchunk;
 530                         ibufreq->tx.npacket = it->bnpacket;
 531                         ibufreq->tx.psize = it->psize;
 532                 }
 533                 break;
 534         case FW_ASYREQ:
 535         {
 536                 struct tcode_info *tinfo;
 537                 int pay_len = 0;
 538
 539                 fp = &asyreq->pkt;
 540                 tinfo = &sc->fc->tcode[fp->mode.hdr.tcode];
 541
 542                 if ((tinfo->flag & FWTI_BLOCK_ASY) != 0)
 543                         pay_len = MAX(0, asyreq->req.len - tinfo->hdr_len);
 544
 545                 xfer = fw_xfer_alloc_buf(M_FWXFER, pay_len, PAGE_SIZE/*XXX*/);
 546                 if (xfer == NULL)
 547                         return (ENOMEM);
 548
 549                 switch (asyreq->req.type) {
 550                 case FWASREQNODE:
 551                         break;
 552                 case FWASREQEUI:
 553                         fwdev = fw_noderesolve_eui64(sc->fc,
 554                                                 &asyreq->req.dst.eui);
 555                         if (fwdev == NULL) {
 556                                 device_printf(sc->fc->bdev,
 557                                         "cannot find node\n");
 558                                 err = EINVAL;
 559                                 goto out;
 560                         }
 561                         fp->mode.hdr.dst = FWLOCALBUS | fwdev->dst;
 562                         break;
 563                 case FWASRESTL:
 564                         /* XXX what's this? */
 565                         break;
 566                 case FWASREQSTREAM:
 567                         /* nothing to do */
 568                         break;
 569                 }
 570
 571                 bcopy(fp, (void *)&xfer->send.hdr, tinfo->hdr_len);
 572                 if (pay_len > 0)
 573                         bcopy((char *)fp + tinfo->hdr_len,
 574                             (void *)&xfer->send.payload, pay_len);
 575                 xfer->send.spd = asyreq->req.sped;
 576                 xfer->act.hand = fw_asy_callback;
 577
 578                 if ((err = fw_asyreq(sc->fc, -1, xfer)) != 0)
 579                         goto out;
 580                 if ((err = tsleep(xfer, FWPRI, "asyreq", hz)) != 0)
 581                         goto out;
 582                 if (xfer->resp != 0) {
 583                         err = EIO;
 584                         goto out;
 585                 }
 586                 if ((tinfo->flag & FWTI_TLABEL) == 0)
 587                         goto out;
 588
 589                 /* copy response */
 590                 tinfo = &sc->fc->tcode[xfer->recv.hdr.mode.hdr.tcode];
 591                 if (asyreq->req.len >= xfer->recv.pay_len + tinfo->hdr_len)
 592                         asyreq->req.len = xfer->recv.pay_len;
 593                 else
 594                         err = EINVAL;
 595                 bcopy(&xfer->recv.hdr, fp, tinfo->hdr_len);
 596                 bcopy(xfer->recv.payload, (char *)fp + tinfo->hdr_len,
 597                     MAX(0, asyreq->req.len - tinfo->hdr_len));
 598 out:
 599                 fw_xfer_free_buf(xfer);
 600                 break;
 601         }
 602         case FW_IBUSRST:
 603                 sc->fc->ibr(sc->fc);
 604                 break;
 605         case FW_CBINDADDR:
 606                 fwb = fw_bindlookup(sc->fc,
 607                                 bindreq->start.hi, bindreq->start.lo);
 608                 if(fwb == NULL){
 609                         err = EINVAL;
 610                         break;
 611                 }
 612                 STAILQ_REMOVE(&sc->fc->binds, fwb, fw_bind, fclist);
 613                 STAILQ_REMOVE(&ir->binds, fwb, fw_bind, chlist);
 614                 kfree(fwb, M_FW);
 615                 break;
 616         case FW_SBINDADDR:
 617                 if(bindreq->len <= 0 ){
 618                         err = EINVAL;
 619                         break;
 620                 }
 621                 if(bindreq->start.hi > 0xffff ){
 622                         err = EINVAL;
 623                         break;
 624                 }
 625                 fwb = kmalloc(sizeof (struct fw_bind), M_FW, M_WAITOK);
 626                 fwb->start = ((u_int64_t)bindreq->start.hi << 32) |
 627                     bindreq->start.lo;
 628                 fwb->end = fwb->start +  bindreq->len;
 629                 /* XXX */
 630                 fwb->sub = ir->dmach;
 631                 fwb->act_type = FWACT_CH;
 632
 633                 /* XXX alloc buf */
 634                 xfer = fw_xfer_alloc(M_FWXFER);
 635                 if(xfer == NULL){
 636                         kfree(fwb, M_FW);
 637                         return (ENOMEM);
 638                 }
 639                 xfer->fc = sc->fc;
 640
 641                 crit_enter();
 642                 /* XXX broken. need multiple xfer */
 643                 STAILQ_INIT(&fwb->xferlist);
 644                 STAILQ_INSERT_TAIL(&fwb->xferlist, xfer, link);
 645                 crit_exit();
 646                 err = fw_bindadd(sc->fc, fwb);
 647                 break;
 648         case FW_GDEVLST:
 649                 i = len = 1;
 650                 /* myself */
 651                 devinfo = &fwdevlst->dev[0];
 652                 devinfo->dst = sc->fc->nodeid;
 653                 devinfo->status = 0;    /* XXX */
 654                 devinfo->eui.hi = sc->fc->eui.hi;
 655                 devinfo->eui.lo = sc->fc->eui.lo;
 656                 STAILQ_FOREACH(fwdev, &sc->fc->devices, link) {
 657                         if(len < FW_MAX_DEVLST){
 658                                 devinfo = &fwdevlst->dev[len++];
 659                                 devinfo->dst = fwdev->dst;
 660                                 devinfo->status =
 661                                         (fwdev->status == FWDEVINVAL)?0:1;
 662                                 devinfo->eui.hi = fwdev->eui.hi;
 663                                 devinfo->eui.lo = fwdev->eui.lo;
 664                         }
 665                         i++;
 666                 }
 667                 fwdevlst->n = i;
 668                 fwdevlst->info_len = len;
 669                 break;
 670         case FW_GTPMAP:
 671                 bcopy(sc->fc->topology_map, ap->a_data,
 672                                 (sc->fc->topology_map->crc_len + 1) * 4);
 673                 break;
 674         case FW_GCROM:
 675                 STAILQ_FOREACH(fwdev, &sc->fc->devices, link)
 676                         if (FW_EUI64_EQUAL(fwdev->eui, crom_buf->eui))
 677                                 break;
 678                 if (fwdev == NULL) {
 679                         if (!FW_EUI64_EQUAL(sc->fc->eui, crom_buf->eui)) {
 680                                 err = FWNODE_INVAL;
 681                                 break;
 682                         }
 683                         /* myself */
 684                         ptr = kmalloc(CROMSIZE, M_FW, M_WAITOK);
 685                         len = CROMSIZE;
 686                         for (i = 0; i < CROMSIZE/4; i++)
 687                                 ((u_int32_t *)ptr)[i]
 688                                         = ntohl(sc->fc->config_rom[i]);
 689                 } else {
 690                         /* found */
 691                         ptr = (void *)&fwdev->csrrom[0];
 692                         if (fwdev->rommax < CSRROMOFF)
 693                                 len = 0;
 694                         else
 695                                 len = fwdev->rommax - CSRROMOFF + 4;
 696                 }
 697                 if (crom_buf->len < len && crom_buf->len >= 0)
 698                         len = crom_buf->len;
 699                 else
 700                         crom_buf->len = len;
 701                 err = copyout(ptr, crom_buf->ptr, len);
 702                 if (fwdev == NULL)
 703                         /* myself */
 704                         kfree(ptr, M_FW);
 705                 break;
 706         default:
 707                 sc->fc->ioctl(ap);
 708                 break;
 709         }
 710         return err;
 711 }
 712 int
 713 fw_poll(struct dev_poll_args *ap)
 714 {
 715         cdev_t dev = ap->a_head.a_dev;
 716         struct firewire_softc *sc;
 717         struct fw_xferq *ir;
 718         int revents;
 719         int tmp;
 720         int unit = DEV2UNIT(dev);
 721
 722         if (DEV_FWMEM(dev))
 723                 return fwmem_poll(ap);
 724
 725         sc = devclass_get_softc(firewire_devclass, unit);
 726         ir = ((struct fw_drv1 *)dev->si_drv1)->ir;
 727         revents = 0;
 728         tmp = POLLIN | POLLRDNORM;
 729         if (ap->a_events & tmp) {
 730                 if (STAILQ_FIRST(&ir->q) != NULL)
 731                         revents |= tmp;
 732                 else
 733                         selrecord(curthread, &ir->rsel);
 734         }
 735         tmp = POLLOUT | POLLWRNORM;
 736         if (ap->a_events & tmp) {
 737                 /* XXX should be fixed */
 738                 revents |= tmp;
 739         }
 740         ap->a_events = revents;
 741         return(0);
 742 }
 743
 744 static int
 745 fw_mmap (struct dev_mmap_args *ap)
 746 {
 747         cdev_t dev = ap->a_head.a_dev;
 748         struct firewire_softc *sc;
 749         int unit = DEV2UNIT(dev);
 750
 751         if (DEV_FWMEM(dev))
 752                 return fwmem_mmap(ap);
 753         sc = devclass_get_softc(firewire_devclass, unit);
 754
 755         return EINVAL;
 756 }
 757
 758 static int
 759 fw_strategy(struct dev_strategy_args *ap)
 760 {
 761         cdev_t dev = ap->a_head.a_dev;
 762         struct bio *bio = ap->a_bio;
 763         struct buf *bp = bio->bio_buf;
 764
 765         if (DEV_FWMEM(dev)) {
 766                 fwmem_strategy(ap);
 767                 return(0);
 768         }
 769         bp->b_error = EOPNOTSUPP;
 770         bp->b_flags |= B_ERROR;
 771         bp->b_resid = bp->b_bcount;
 772         biodone(bio);
 773         return(0);
 774 }
 775
 776 int
 777 fwdev_makedev(struct firewire_softc *sc)
 778 {
 779         int unit;
 780
 781         unit = device_get_unit(sc->fc->bdev);
 782         dev_ops_add(&firewire_ops, FW_UNITMASK, FW_UNIT(unit));
 783         return(0);
 784 }
 785
 786 int
 787 fwdev_destroydev(struct firewire_softc *sc)
 788 {
 789         int unit;
 790
 791         unit = device_get_unit(sc->fc->bdev);
 792         dev_ops_remove(&firewire_ops, FW_UNITMASK, FW_UNIT(unit));
 793         return(0);
 794 }
 795
 796 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000
 797 #define NDEVTYPE 2
 798 void
 799 fwdev_clone(void *arg, char *name, int namelen, cdev_t *dev)
 800 {
 801         struct firewire_softc *sc;
 802         char *devnames[NDEVTYPE] = {"fw", "fwmem"};
 803         char *subp = NULL;
 804         int devflag[NDEVTYPE] = {0, FWMEM_FLAG};
 805         int i, unit = 0, sub = 0;
 806
 807         if (*dev != NULL)
 808                 return;
 809
 810         for (i = 0; i < NDEVTYPE; i++)
 811                 if (dev_stdclone(name, &subp, devnames[i], &unit) == 2)
 812                         goto found;
 813         /* not match */
 814         return;
 815 found:
 816
 817         if (subp == NULL || *subp++ != '.')
 818                 return;
 819
 820         /* /dev/fwU.S */
 821         while (isdigit(*subp)) {
 822                 sub *= 10;
 823                 sub += *subp++ - '0';
 824         }
 825         if (*subp != '\0')
 826                 return;
 827
 828         sc = devclass_get_softc(firewire_devclass, unit);
 829         if (sc == NULL)
 830                 return;
 831         *dev = make_dev(&firewire_ops, MAKEMINOR(devflag[i], unit, sub),
 832                        UID_ROOT, GID_OPERATOR, 0660,
 833                        "%s%d.%d", devnames[i], unit, sub);
 834         (*dev)->si_flags |= SI_CHEAPCLONE;
 835         dev_depends(sc->dev, *dev);
 836         return;
 837 }
 838 #endif