sys/bus/firewire/fwdev.c

   1 /*
   2  * Copyright (c) 2003 Hidetoshi Shimokawa
   3  * Copyright (c) 1998-2002 Katsushi Kobayashi and Hidetoshi Shimokawa
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  * 3. All advertising materials mentioning features or use of this software
  15  *    must display the acknowledgement as bellow:
  16  *
  17  *    This product includes software developed by K. Kobayashi and H. Shimokawa
  18  *
  19  * 4. The name of the author may not be used to endorse or promote products
  20  *    derived from this software without specific prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  23  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  24  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  25  * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
  26  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  27  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  28  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  30  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
  31  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  32  * POSSIBILITY OF SUCH DAMAGE.
  33  *
  34  * $FreeBSD: src/sys/dev/firewire/fwdev.c,v 1.36 2004/01/22 14:41:17 simokawa Exp $
  35  *
  36  */
  37
  38 #include <sys/param.h>
  39 #include <sys/systm.h>
  40 #include <sys/types.h>
  41 #include <sys/mbuf.h>
  42 #if defined(__DragonFly__) || __FreeBSD_version < 500000
  43 #include <sys/buf.h>
  44 #else
  45 #include <sys/bio.h>
  46 #endif
  47
  48 #include <sys/kernel.h>
  49 #include <sys/malloc.h>
  50 #include <sys/conf.h>
  51 #include <sys/event.h>
  52
  53 #include <sys/bus.h>
  54 #include <sys/ctype.h>
  55
  56 #include <sys/thread2.h>
  57
  58 #ifdef __DragonFly__
  59 #include "firewire.h"
  60 #include "firewirereg.h"
  61 #include "fwdma.h"
  62 #include "fwmem.h"
  63 #include "iec68113.h"
  64 #else
  65 #include <dev/firewire/firewire.h>
  66 #include <dev/firewire/firewirereg.h>
  67 #include <dev/firewire/fwdma.h>
  68 #include <dev/firewire/fwmem.h>
  69 #include <dev/firewire/iec68113.h>
  70 #endif
  71
  72 #define FWNODE_INVAL 0xffff
  73
  74 static  d_open_t        fw_open;
  75 static  d_close_t       fw_close;
  76 static  d_ioctl_t       fw_ioctl;
  77 static  d_kqfilter_t    fw_kqfilter;
  78 static  d_read_t        fw_read;        /* for Isochronous packet */
  79 static  d_write_t       fw_write;
  80 static  d_mmap_t        fw_mmap;
  81 static  d_strategy_t    fw_strategy;
  82
  83 static void fwfilt_detach(struct knote *);
  84 static int fwfilt_read(struct knote *, long);
  85 static int fwfilt_write(struct knote *, long);
  86
  87 struct dev_ops firewire_ops =
  88 {
  89         { "fw", 0, 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_kqfilter =   fw_kqfilter,
  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
 119         b->psize = roundup2(b->psize, sizeof(u_int32_t));
 120         q->buf = fwdma_malloc_multiseg(fc, sizeof(u_int32_t),
 121                         b->psize, b->nchunk * b->npacket, BUS_DMA_WAITOK);
 122
 123         if (q->buf == NULL) {
 124                 kfree(q->bulkxfer, M_FW);
 125                 q->bulkxfer = NULL;
 126                 return(ENOMEM);
 127         }
 128         q->bnchunk = b->nchunk;
 129         q->bnpacket = b->npacket;
 130         q->psize = (b->psize + 3) & ~3;
 131         q->queued = 0;
 132
 133         STAILQ_INIT(&q->stvalid);
 134         STAILQ_INIT(&q->stfree);
 135         STAILQ_INIT(&q->stdma);
 136         q->stproc = NULL;
 137
 138         for(i = 0 ; i < q->bnchunk; i++){
 139                 q->bulkxfer[i].poffset = i * q->bnpacket;
 140                 q->bulkxfer[i].mbuf = NULL;
 141                 STAILQ_INSERT_TAIL(&q->stfree, &q->bulkxfer[i], link);
 142         }
 143
 144         q->flag &= ~FWXFERQ_MODEMASK;
 145         q->flag |= FWXFERQ_STREAM;
 146         q->flag |= FWXFERQ_EXTBUF;
 147
 148         return (0);
 149 }
 150
 151 static int
 152 fwdev_freebuf(struct fw_xferq *q)
 153 {
 154         if (q->flag & FWXFERQ_EXTBUF) {
 155                 if (q->buf != NULL)
 156                         fwdma_free_multiseg(q->buf);
 157                 q->buf = NULL;
 158                 kfree(q->bulkxfer, M_FW);
 159                 q->bulkxfer = NULL;
 160                 q->flag &= ~FWXFERQ_EXTBUF;
 161                 q->psize = 0;
 162                 q->maxq = FWMAXQUEUE;
 163         }
 164         return (0);
 165 }
 166
 167
 168 static int
 169 fw_open (struct dev_open_args *ap)
 170 {
 171         cdev_t dev = ap->a_head.a_dev;
 172         int err = 0;
 173
 174         if (DEV_FWMEM(dev))
 175                 return fwmem_open(ap);
 176
 177         if (dev->si_drv1 != NULL)
 178                 return (EBUSY);
 179
 180 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000
 181         if ((dev->si_flags & SI_NAMED) == 0) {
 182                 int unit = DEV2UNIT(dev);
 183                 int sub = DEV2SUB(dev);
 184
 185                 make_dev(&firewire_ops, minor(dev),
 186                         UID_ROOT, GID_OPERATOR, 0660,
 187                         "fw%d.%d", unit, sub);
 188         }
 189 #endif
 190
 191         dev->si_drv1 = kmalloc(sizeof(struct fw_drv1), M_FW, M_WAITOK | M_ZERO);
 192
 193         return err;
 194 }
 195
 196 static int
 197 fw_close (struct dev_close_args *ap)
 198 {
 199         cdev_t dev = ap->a_head.a_dev;
 200         struct firewire_softc *sc;
 201         struct firewire_comm *fc;
 202         struct fw_drv1 *d;
 203         int unit = DEV2UNIT(dev);
 204         struct fw_xfer *xfer;
 205         struct fw_bind *fwb;
 206         int err = 0;
 207
 208         if (DEV_FWMEM(dev))
 209                 return fwmem_close(ap);
 210
 211         sc = devclass_get_softc(firewire_devclass, unit);
 212         fc = sc->fc;
 213         d = (struct fw_drv1 *)dev->si_drv1;
 214
 215         if (d->ir != NULL) {
 216                 struct fw_xferq *ir = d->ir;
 217
 218                 if ((ir->flag & FWXFERQ_OPEN) == 0)
 219                         return (EINVAL);
 220                 if (ir->flag & FWXFERQ_RUNNING) {
 221                         ir->flag &= ~FWXFERQ_RUNNING;
 222                         fc->irx_disable(fc, ir->dmach);
 223                 }
 224                 /* free extbuf */
 225                 fwdev_freebuf(ir);
 226                 /* drain receiving buffer */
 227                 for (xfer = STAILQ_FIRST(&ir->q);
 228                         xfer != NULL; xfer = STAILQ_FIRST(&ir->q)) {
 229                         ir->queued --;
 230                         STAILQ_REMOVE_HEAD(&ir->q, link);
 231
 232                         xfer->resp = 0;
 233                         fw_xfer_done(xfer);
 234                 }
 235                 /* remove binding */
 236                 for (fwb = STAILQ_FIRST(&ir->binds); fwb != NULL;
 237                                 fwb = STAILQ_FIRST(&ir->binds)) {
 238                         STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist);
 239                         STAILQ_REMOVE_HEAD(&ir->binds, chlist);
 240                         kfree(fwb, M_FW);
 241                 }
 242                 ir->flag &= ~(FWXFERQ_OPEN |
 243                         FWXFERQ_MODEMASK | FWXFERQ_CHTAGMASK);
 244                 d->ir = NULL;
 245
 246         }
 247         if (d->it != NULL) {
 248                 struct fw_xferq *it = d->it;
 249
 250                 if ((it->flag & FWXFERQ_OPEN) == 0)
 251                         return (EINVAL);
 252                 if (it->flag & FWXFERQ_RUNNING) {
 253                         it->flag &= ~FWXFERQ_RUNNING;
 254                         fc->itx_disable(fc, it->dmach);
 255                 }
 256                 /* free extbuf */
 257                 fwdev_freebuf(it);
 258                 it->flag &= ~(FWXFERQ_OPEN |
 259                         FWXFERQ_MODEMASK | FWXFERQ_CHTAGMASK);
 260                 d->it = NULL;
 261         }
 262         kfree(dev->si_drv1, M_FW);
 263         dev->si_drv1 = NULL;
 264
 265         return err;
 266 }
 267
 268 /*
 269  * read request.
 270  */
 271 static int
 272 fw_read (struct dev_read_args *ap)
 273 {
 274         cdev_t dev = ap->a_head.a_dev;
 275         struct uio *uio = ap->a_uio;
 276         struct firewire_softc *sc;
 277         struct fw_xferq *ir;
 278         struct fw_xfer *xfer;
 279         int err = 0, slept = 0;
 280         int unit = DEV2UNIT(dev);
 281         struct fw_pkt *fp;
 282
 283         if (DEV_FWMEM(dev))
 284                 return physread(ap);
 285
 286         sc = devclass_get_softc(firewire_devclass, unit);
 287
 288         ir = ((struct fw_drv1 *)dev->si_drv1)->ir;
 289         if (ir == NULL || ir->buf == NULL)
 290                 return (EIO);
 291
 292 readloop:
 293         xfer = STAILQ_FIRST(&ir->q);
 294         if (ir->stproc == NULL) {
 295                 /* iso bulkxfer */
 296                 ir->stproc = STAILQ_FIRST(&ir->stvalid);
 297                 if (ir->stproc != NULL) {
 298                         crit_enter();
 299                         STAILQ_REMOVE_HEAD(&ir->stvalid, link);
 300                         crit_exit();
 301                         ir->queued = 0;
 302                 }
 303         }
 304         if (xfer == NULL && ir->stproc == NULL) {
 305                 /* no data avaliable */
 306                 if (slept == 0) {
 307                         slept = 1;
 308                         ir->flag |= FWXFERQ_WAKEUP;
 309                         err = tsleep(ir, FWPRI, "fw_read", hz);
 310                         ir->flag &= ~FWXFERQ_WAKEUP;
 311                         if (err == 0)
 312                                 goto readloop;
 313                 } else if (slept == 1)
 314                         err = EIO;
 315                 return err;
 316         } else if(xfer != NULL) {
 317 #if 0 /* XXX broken */
 318                 /* per packet mode or FWACT_CH bind?*/
 319                 crit_enter();
 320                 ir->queued --;
 321                 STAILQ_REMOVE_HEAD(&ir->q, link);
 322                 crit_exit();
 323                 fp = &xfer->recv.hdr;
 324                 if (sc->fc->irx_post != NULL)
 325                         sc->fc->irx_post(sc->fc, fp->mode.ld);
 326                 err = uiomove((void *)fp, 1 /* XXX header size */, uio);
 327                 /* XXX copy payload too */
 328                 /* XXX we should recycle this xfer */
 329 #endif
 330                 fw_xfer_free( xfer);
 331         } else if(ir->stproc != NULL) {
 332                 /* iso bulkxfer */
 333                 fp = (struct fw_pkt *)fwdma_v_addr(ir->buf,
 334                                 ir->stproc->poffset + ir->queued);
 335                 if(sc->fc->irx_post != NULL)
 336                         sc->fc->irx_post(sc->fc, fp->mode.ld);
 337                 if(fp->mode.stream.len == 0){
 338                         err = EIO;
 339                         return err;
 340                 }
 341                 err = uiomove((caddr_t)fp,
 342                         fp->mode.stream.len + sizeof(u_int32_t), uio);
 343                 ir->queued ++;
 344                 if(ir->queued >= ir->bnpacket){
 345                         crit_enter();
 346                         STAILQ_INSERT_TAIL(&ir->stfree, ir->stproc, link);
 347                         crit_exit();
 348                         sc->fc->irx_enable(sc->fc, ir->dmach);
 349                         ir->stproc = NULL;
 350                 }
 351                 if (uio->uio_resid >= ir->psize) {
 352                         slept = -1;
 353                         goto readloop;
 354                 }
 355         }
 356         return err;
 357 }
 358
 359 static int
 360 fw_write (struct dev_write_args *ap)
 361 {
 362         cdev_t dev = ap->a_head.a_dev;
 363         struct uio *uio = ap->a_uio;
 364         int err = 0;
 365         struct firewire_softc *sc;
 366         int unit = DEV2UNIT(dev);
 367         int slept = 0;
 368         struct fw_pkt *fp;
 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         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
 712 static struct filterops fw_read_filterops =
 713         { FILTEROP_ISFD, NULL, fwfilt_detach, fwfilt_read };
 714 static struct filterops fw_write_filterops =
 715         { FILTEROP_ISFD, NULL, fwfilt_detach, fwfilt_write };
 716
 717 static int
 718 fw_kqfilter(struct dev_kqfilter_args *ap)
 719 {
 720         cdev_t dev = ap->a_head.a_dev;
 721         struct fw_xferq *ir;
 722         struct knote *kn = ap->a_kn;
 723         struct klist *klist;
 724
 725         /*
 726          * XXX Implement filters for mem?
 727          */
 728         if (DEV_FWMEM(dev)) {
 729                 ap->a_result = EOPNOTSUPP;
 730                 return (0);
 731         }
 732
 733         ir = ((struct fw_drv1 *)dev->si_drv1)->ir;
 734
 735         ap->a_result = 0;
 736
 737         switch (kn->kn_filter) {
 738         case EVFILT_READ:
 739                 kn->kn_fop = &fw_read_filterops;
 740                 kn->kn_hook = (caddr_t)ir;
 741                 break;
 742         case EVFILT_WRITE:
 743                 kn->kn_fop = &fw_write_filterops;
 744                 kn->kn_hook = (caddr_t)ir;
 745                 break;
 746         default:
 747                 ap->a_result = EOPNOTSUPP;
 748                 return (0);
 749         }
 750
 751         klist = &ir->rkq.ki_note;
 752         knote_insert(klist, kn);
 753
 754         return (0);
 755 }
 756
 757 static void
 758 fwfilt_detach(struct knote *kn)
 759 {
 760         struct fw_xferq *ir = (struct fw_xferq *)kn->kn_hook;
 761         struct klist *klist = &ir->rkq.ki_note;
 762
 763         knote_remove(klist, kn);
 764 }
 765
 766 static int
 767 fwfilt_read(struct knote *kn, long hint)
 768 {
 769         struct fw_xferq *ir = (struct fw_xferq *)kn->kn_hook;
 770         int ready = 0;
 771
 772         if (STAILQ_FIRST(&ir->q) != NULL)
 773                 ready = 1;
 774
 775         return (ready);
 776 }
 777
 778 static int
 779 fwfilt_write(struct knote *kn, long hint)
 780 {
 781         /* XXX should be fixed */
 782         return (1);
 783 }
 784
 785 static int
 786 fw_mmap (struct dev_mmap_args *ap)
 787 {
 788         cdev_t dev = ap->a_head.a_dev;
 789
 790         if (DEV_FWMEM(dev))
 791                 return fwmem_mmap(ap);
 792
 793         return EINVAL;
 794 }
 795
 796 static int
 797 fw_strategy(struct dev_strategy_args *ap)
 798 {
 799         cdev_t dev = ap->a_head.a_dev;
 800         struct bio *bio = ap->a_bio;
 801         struct buf *bp = bio->bio_buf;
 802
 803         if (DEV_FWMEM(dev)) {
 804                 fwmem_strategy(ap);
 805                 return(0);
 806         }
 807         bp->b_error = EOPNOTSUPP;
 808         bp->b_flags |= B_ERROR;
 809         bp->b_resid = bp->b_bcount;
 810         biodone(bio);
 811         return(0);
 812 }
 813
 814 int
 815 fwdev_makedev(struct firewire_softc *sc)
 816 {
 817         /*HELPME dev_ops_add(&firewire_ops, FW_UNITMASK, FW_UNIT(unit));*/
 818         return(0);
 819 }
 820
 821 int
 822 fwdev_destroydev(struct firewire_softc *sc)
 823 {
 824         int unit;
 825
 826         unit = device_get_unit(sc->fc->bdev);
 827         dev_ops_remove_minor(&firewire_ops, /*FW_UNITMASK, */FW_UNIT(unit));
 828         return(0);
 829 }
 830
 831 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000
 832 #define NDEVTYPE 2
 833 void
 834 fwdev_clone(void *arg, char *name, int namelen, cdev_t *dev)
 835 {
 836         struct firewire_softc *sc;
 837         char *devnames[NDEVTYPE] = {"fw", "fwmem"};
 838         char *subp = NULL;
 839         int devflag[NDEVTYPE] = {0, FWMEM_FLAG};
 840         int i, unit = 0, sub = 0;
 841
 842         if (*dev != NULL)
 843                 return;
 844
 845         for (i = 0; i < NDEVTYPE; i++)
 846                 if (dev_stdclone(name, &subp, devnames[i], &unit) == 2)
 847                         goto found;
 848         /* not match */
 849         return;
 850 found:
 851
 852         if (subp == NULL || *subp++ != '.')
 853                 return;
 854
 855         /* /dev/fwU.S */
 856         while (isdigit(*subp)) {
 857                 sub *= 10;
 858                 sub += *subp++ - '0';
 859         }
 860         if (*subp != '\0')
 861                 return;
 862
 863         sc = devclass_get_softc(firewire_devclass, unit);
 864         if (sc == NULL)
 865                 return;
 866         *dev = make_dev(&firewire_ops, MAKEMINOR(devflag[i], unit, sub),
 867                        UID_ROOT, GID_OPERATOR, 0660,
 868                        "%s%d.%d", devnames[i], unit, sub);
 869         (*dev)->si_flags |= SI_CHEAPCLONE;
 870         dev_depends(sc->dev, *dev);
 871         return;
 872 }
 873 #endif