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