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 1.10 2005/06/02 20:40:33 dillon Exp $
  36  *
  37  */
  38
  39 #include <sys/param.h>
  40 #include <sys/systm.h>
  41 #include <sys/types.h>
  42 #include <sys/mbuf.h>
  43 #if defined(__DragonFly__) || __FreeBSD_version < 500000
  44 #include <sys/buf.h>
  45 #else
  46 #include <sys/bio.h>
  47 #endif
  48
  49 #include <sys/kernel.h>
  50 #include <sys/malloc.h>
  51 #include <sys/conf.h>
  52 #include <sys/poll.h>
  53
  54 #include <sys/bus.h>
  55 #include <sys/ctype.h>
  56 #include <machine/bus.h>
  57
  58 #include <sys/ioccom.h>
  59 #include <sys/thread2.h>
  60
  61 #ifdef __DragonFly__
  62 #include "firewire.h"
  63 #include "firewirereg.h"
  64 #include "fwdma.h"
  65 #include "fwmem.h"
  66 #include "iec68113.h"
  67 #else
  68 #include <dev/firewire/firewire.h>
  69 #include <dev/firewire/firewirereg.h>
  70 #include <dev/firewire/fwdma.h>
  71 #include <dev/firewire/fwmem.h>
  72 #include <dev/firewire/iec68113.h>
  73 #endif
  74
  75 #define CDEV_MAJOR 127
  76 #define FWNODE_INVAL 0xffff
  77
  78 static  d_open_t        fw_open;
  79 static  d_close_t       fw_close;
  80 static  d_ioctl_t       fw_ioctl;
  81 static  d_poll_t        fw_poll;
  82 static  d_read_t        fw_read;        /* for Isochronous packet */
  83 static  d_write_t       fw_write;
  84 static  d_mmap_t        fw_mmap;
  85 static  d_strategy_t    fw_strategy;
  86
  87 struct cdevsw firewire_cdevsw =
  88 {
  89 #ifdef __DragonFly__
  90         "fw", CDEV_MAJOR, D_MEM, NULL, 0,
  91         fw_open, fw_close, fw_read, fw_write, fw_ioctl,
  92         fw_poll, fw_mmap, fw_strategy, nodump, nopsize,
  93 #elif __FreeBSD_version >= 500104
  94         .d_open =       fw_open,
  95         .d_close =      fw_close,
  96         .d_read =       fw_read,
  97         .d_write =      fw_write,
  98         .d_ioctl =      fw_ioctl,
  99         .d_poll =       fw_poll,
 100         .d_mmap =       fw_mmap,
 101         .d_strategy =   fw_strategy,
 102         .d_name =       "fw",
 103         .d_maj =        CDEV_MAJOR,
 104         .d_flags =      D_MEM
 105 #else
 106         fw_open, fw_close, fw_read, fw_write, fw_ioctl,
 107         fw_poll, fw_mmap, fw_strategy, "fw", CDEV_MAJOR,
 108         nodump, nopsize, D_MEM, -1
 109 #endif
 110 };
 111
 112 struct fw_drv1 {
 113         struct fw_xferq *ir;
 114         struct fw_xferq *it;
 115         struct fw_isobufreq bufreq;
 116 };
 117
 118 static int
 119 fwdev_allocbuf(struct firewire_comm *fc, struct fw_xferq *q,
 120         struct fw_bufspec *b)
 121 {
 122         int i;
 123
 124         if (q->flag & (FWXFERQ_RUNNING | FWXFERQ_EXTBUF))
 125                 return(EBUSY);
 126
 127         q->bulkxfer = (struct fw_bulkxfer *) malloc(
 128                 sizeof(struct fw_bulkxfer) * b->nchunk,
 129                 M_FW, M_WAITOK);
 130         if (q->bulkxfer == NULL)
 131                 return(ENOMEM);
 132
 133         b->psize = roundup2(b->psize, sizeof(u_int32_t));
 134         q->buf = fwdma_malloc_multiseg(fc, sizeof(u_int32_t),
 135                         b->psize, b->nchunk * b->npacket, BUS_DMA_WAITOK);
 136
 137         if (q->buf == NULL) {
 138                 free(q->bulkxfer, M_FW);
 139                 q->bulkxfer = NULL;
 140                 return(ENOMEM);
 141         }
 142         q->bnchunk = b->nchunk;
 143         q->bnpacket = b->npacket;
 144         q->psize = (b->psize + 3) & ~3;
 145         q->queued = 0;
 146
 147         STAILQ_INIT(&q->stvalid);
 148         STAILQ_INIT(&q->stfree);
 149         STAILQ_INIT(&q->stdma);
 150         q->stproc = NULL;
 151
 152         for(i = 0 ; i < q->bnchunk; i++){
 153                 q->bulkxfer[i].poffset = i * q->bnpacket;
 154                 q->bulkxfer[i].mbuf = NULL;
 155                 STAILQ_INSERT_TAIL(&q->stfree, &q->bulkxfer[i], link);
 156         }
 157
 158         q->flag &= ~FWXFERQ_MODEMASK;
 159         q->flag |= FWXFERQ_STREAM;
 160         q->flag |= FWXFERQ_EXTBUF;
 161
 162         return (0);
 163 }
 164
 165 static int
 166 fwdev_freebuf(struct fw_xferq *q)
 167 {
 168         if (q->flag & FWXFERQ_EXTBUF) {
 169                 if (q->buf != NULL)
 170                         fwdma_free_multiseg(q->buf);
 171                 q->buf = NULL;
 172                 free(q->bulkxfer, M_FW);
 173                 q->bulkxfer = NULL;
 174                 q->flag &= ~FWXFERQ_EXTBUF;
 175                 q->psize = 0;
 176                 q->maxq = FWMAXQUEUE;
 177         }
 178         return (0);
 179 }
 180
 181
 182 static int
 183 fw_open (dev_t dev, int flags, int fmt, fw_proc *td)
 184 {
 185         int err = 0;
 186
 187         if (DEV_FWMEM(dev))
 188                 return fwmem_open(dev, flags, fmt, td);
 189
 190         if (dev->si_drv1 != NULL)
 191                 return (EBUSY);
 192
 193 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000
 194         if ((dev->si_flags & SI_NAMED) == 0) {
 195                 int unit = DEV2UNIT(dev);
 196                 int sub = DEV2SUB(dev);
 197
 198                 make_dev(&firewire_cdevsw, minor(dev),
 199                         UID_ROOT, GID_OPERATOR, 0660,
 200                         "fw%d.%d", unit, sub);
 201         }
 202 #endif
 203
 204         dev->si_drv1 = malloc(sizeof(struct fw_drv1), M_FW, M_WAITOK | M_ZERO);
 205
 206         return err;
 207 }
 208
 209 static int
 210 fw_close (dev_t dev, int flags, int fmt, fw_proc *td)
 211 {
 212         struct firewire_softc *sc;
 213         struct firewire_comm *fc;
 214         struct fw_drv1 *d;
 215         int unit = DEV2UNIT(dev);
 216         struct fw_xfer *xfer;
 217         struct fw_bind *fwb;
 218         int err = 0;
 219
 220         if (DEV_FWMEM(dev))
 221                 return fwmem_close(dev, flags, fmt, td);
 222
 223         sc = devclass_get_softc(firewire_devclass, unit);
 224         fc = sc->fc;
 225         d = (struct fw_drv1 *)dev->si_drv1;
 226
 227         if (d->ir != NULL) {
 228                 struct fw_xferq *ir = d->ir;
 229
 230                 if ((ir->flag & FWXFERQ_OPEN) == 0)
 231                         return (EINVAL);
 232                 if (ir->flag & FWXFERQ_RUNNING) {
 233                         ir->flag &= ~FWXFERQ_RUNNING;
 234                         fc->irx_disable(fc, ir->dmach);
 235                 }
 236                 /* free extbuf */
 237                 fwdev_freebuf(ir);
 238                 /* drain receiving buffer */
 239                 for (xfer = STAILQ_FIRST(&ir->q);
 240                         xfer != NULL; xfer = STAILQ_FIRST(&ir->q)) {
 241                         ir->queued --;
 242                         STAILQ_REMOVE_HEAD(&ir->q, link);
 243
 244                         xfer->resp = 0;
 245                         fw_xfer_done(xfer);
 246                 }
 247                 /* remove binding */
 248                 for (fwb = STAILQ_FIRST(&ir->binds); fwb != NULL;
 249                                 fwb = STAILQ_FIRST(&ir->binds)) {
 250                         STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist);
 251                         STAILQ_REMOVE_HEAD(&ir->binds, chlist);
 252                         free(fwb, M_FW);
 253                 }
 254                 ir->flag &= ~(FWXFERQ_OPEN |
 255                         FWXFERQ_MODEMASK | FWXFERQ_CHTAGMASK);
 256                 d->ir = NULL;
 257
 258         }
 259         if (d->it != NULL) {
 260                 struct fw_xferq *it = d->it;
 261
 262                 if ((it->flag & FWXFERQ_OPEN) == 0)
 263                         return (EINVAL);
 264                 if (it->flag & FWXFERQ_RUNNING) {
 265                         it->flag &= ~FWXFERQ_RUNNING;
 266                         fc->itx_disable(fc, it->dmach);
 267                 }
 268                 /* free extbuf */
 269                 fwdev_freebuf(it);
 270                 it->flag &= ~(FWXFERQ_OPEN |
 271                         FWXFERQ_MODEMASK | FWXFERQ_CHTAGMASK);
 272                 d->it = NULL;
 273         }
 274         free(dev->si_drv1, M_FW);
 275         dev->si_drv1 = NULL;
 276
 277         return err;
 278 }
 279
 280 /*
 281  * read request.
 282  */
 283 static int
 284 fw_read (dev_t dev, struct uio *uio, int ioflag)
 285 {
 286         struct firewire_softc *sc;
 287         struct fw_xferq *ir;
 288         struct fw_xfer *xfer;
 289         int err = 0, slept = 0;
 290         int unit = DEV2UNIT(dev);
 291         struct fw_pkt *fp;
 292
 293         if (DEV_FWMEM(dev))
 294                 return physio(dev, uio, ioflag);
 295
 296         sc = devclass_get_softc(firewire_devclass, unit);
 297
 298         ir = ((struct fw_drv1 *)dev->si_drv1)->ir;
 299         if (ir == NULL || ir->buf == NULL)
 300                 return (EIO);
 301
 302 readloop:
 303         xfer = STAILQ_FIRST(&ir->q);
 304         if (ir->stproc == NULL) {
 305                 /* iso bulkxfer */
 306                 ir->stproc = STAILQ_FIRST(&ir->stvalid);
 307                 if (ir->stproc != NULL) {
 308                         crit_enter();
 309                         STAILQ_REMOVE_HEAD(&ir->stvalid, link);
 310                         crit_exit();
 311                         ir->queued = 0;
 312                 }
 313         }
 314         if (xfer == NULL && ir->stproc == NULL) {
 315                 /* no data avaliable */
 316                 if (slept == 0) {
 317                         slept = 1;
 318                         ir->flag |= FWXFERQ_WAKEUP;
 319                         err = tsleep(ir, FWPRI, "fw_read", hz);
 320                         ir->flag &= ~FWXFERQ_WAKEUP;
 321                         if (err == 0)
 322                                 goto readloop;
 323                 } else if (slept == 1)
 324                         err = EIO;
 325                 return err;
 326         } else if(xfer != NULL) {
 327 #if 0 /* XXX broken */
 328                 /* per packet mode or FWACT_CH bind?*/
 329                 crit_enter();
 330                 ir->queued --;
 331                 STAILQ_REMOVE_HEAD(&ir->q, link);
 332                 crit_exit();
 333                 fp = &xfer->recv.hdr;
 334                 if (sc->fc->irx_post != NULL)
 335                         sc->fc->irx_post(sc->fc, fp->mode.ld);
 336                 err = uiomove((void *)fp, 1 /* XXX header size */, uio);
 337                 /* XXX copy payload too */
 338                 /* XXX we should recycle this xfer */
 339 #endif
 340                 fw_xfer_free( xfer);
 341         } else if(ir->stproc != NULL) {
 342                 /* iso bulkxfer */
 343                 fp = (struct fw_pkt *)fwdma_v_addr(ir->buf,
 344                                 ir->stproc->poffset + ir->queued);
 345                 if(sc->fc->irx_post != NULL)
 346                         sc->fc->irx_post(sc->fc, fp->mode.ld);
 347                 if(fp->mode.stream.len == 0){
 348                         err = EIO;
 349                         return err;
 350                 }
 351                 err = uiomove((caddr_t)fp,
 352                         fp->mode.stream.len + sizeof(u_int32_t), uio);
 353                 ir->queued ++;
 354                 if(ir->queued >= ir->bnpacket){
 355                         crit_enter();
 356                         STAILQ_INSERT_TAIL(&ir->stfree, ir->stproc, link);
 357                         crit_exit();
 358                         sc->fc->irx_enable(sc->fc, ir->dmach);
 359                         ir->stproc = NULL;
 360                 }
 361                 if (uio->uio_resid >= ir->psize) {
 362                         slept = -1;
 363                         goto readloop;
 364                 }
 365         }
 366         return err;
 367 }
 368
 369 static int
 370 fw_write (dev_t dev, struct uio *uio, int ioflag)
 371 {
 372         int err = 0;
 373         struct firewire_softc *sc;
 374         int unit = DEV2UNIT(dev);
 375         int slept = 0;
 376         struct fw_pkt *fp;
 377         struct firewire_comm *fc;
 378         struct fw_xferq *it;
 379
 380         if (DEV_FWMEM(dev))
 381                 return physio(dev, uio, ioflag);
 382
 383         sc = devclass_get_softc(firewire_devclass, unit);
 384         fc = sc->fc;
 385         it = ((struct fw_drv1 *)dev->si_drv1)->it;
 386         if (it == NULL || it->buf == NULL)
 387                 return (EIO);
 388 isoloop:
 389         if (it->stproc == NULL) {
 390                 it->stproc = STAILQ_FIRST(&it->stfree);
 391                 if (it->stproc != NULL) {
 392                         crit_enter();
 393                         STAILQ_REMOVE_HEAD(&it->stfree, link);
 394                         crit_exit();
 395                         it->queued = 0;
 396                 } else if (slept == 0) {
 397                         slept = 1;
 398                         err = sc->fc->itx_enable(sc->fc, it->dmach);
 399                         if (err)
 400                                 return err;
 401                         err = tsleep(it, FWPRI, "fw_write", hz);
 402                         if (err)
 403                                 return err;
 404                         goto isoloop;
 405                 } else {
 406                         err = EIO;
 407                         return err;
 408                 }
 409         }
 410         fp = (struct fw_pkt *)fwdma_v_addr(it->buf,
 411                         it->stproc->poffset + it->queued);
 412         err = uiomove((caddr_t)fp, sizeof(struct fw_isohdr), uio);
 413         err = uiomove((caddr_t)fp->mode.stream.payload,
 414                                 fp->mode.stream.len, uio);
 415         it->queued ++;
 416         if (it->queued >= it->bnpacket) {
 417                 crit_enter();
 418                 STAILQ_INSERT_TAIL(&it->stvalid, it->stproc, link);
 419                 crit_exit();
 420                 it->stproc = NULL;
 421                 err = sc->fc->itx_enable(sc->fc, it->dmach);
 422         }
 423         if (uio->uio_resid >= sizeof(struct fw_isohdr)) {
 424                 slept = 0;
 425                 goto isoloop;
 426         }
 427         return err;
 428 }
 429 /*
 430  * ioctl support.
 431  */
 432 int
 433 fw_ioctl (dev_t dev, u_long cmd, caddr_t data, int flag, fw_proc *td)
 434 {
 435         struct firewire_softc *sc;
 436         struct firewire_comm *fc;
 437         struct fw_drv1 *d;
 438         int unit = DEV2UNIT(dev);
 439         int i, len, err = 0;
 440         struct fw_device *fwdev;
 441         struct fw_bind *fwb;
 442         struct fw_xferq *ir, *it;
 443         struct fw_xfer *xfer;
 444         struct fw_pkt *fp;
 445         struct fw_devinfo *devinfo;
 446         void *ptr;
 447
 448         struct fw_devlstreq *fwdevlst = (struct fw_devlstreq *)data;
 449         struct fw_asyreq *asyreq = (struct fw_asyreq *)data;
 450         struct fw_isochreq *ichreq = (struct fw_isochreq *)data;
 451         struct fw_isobufreq *ibufreq = (struct fw_isobufreq *)data;
 452         struct fw_asybindreq *bindreq = (struct fw_asybindreq *)data;
 453         struct fw_crom_buf *crom_buf = (struct fw_crom_buf *)data;
 454
 455         if (DEV_FWMEM(dev))
 456                 return fwmem_ioctl(dev, cmd, data, flag, td);
 457
 458         if (!data)
 459                 return(EINVAL);
 460
 461         sc = devclass_get_softc(firewire_devclass, unit);
 462         fc = sc->fc;
 463         d = (struct fw_drv1 *)dev->si_drv1;
 464         ir = d->ir;
 465         it = d->it;
 466
 467         switch (cmd) {
 468         case FW_STSTREAM:
 469                 if (it == NULL) {
 470                         for (i = 0; i < fc->nisodma; i ++) {
 471                                 it = fc->it[i];
 472                                 if ((it->flag & FWXFERQ_OPEN) == 0)
 473                                          break;
 474                         }
 475                         if (i >= fc->nisodma) {
 476                                 err = EBUSY;
 477                                 break;
 478                         }
 479                         err = fwdev_allocbuf(fc, it, &d->bufreq.tx);
 480                         if (err)
 481                                 break;
 482                         it->flag |=  FWXFERQ_OPEN;
 483                 }
 484                 it->flag &= ~0xff;
 485                 it->flag |= (0x3f & ichreq->ch);
 486                 it->flag |= ((0x3 & ichreq->tag) << 6);
 487                 d->it = it;
 488                 break;
 489         case FW_GTSTREAM:
 490                 if (it != NULL) {
 491                         ichreq->ch = it->flag & 0x3f;
 492                         ichreq->tag = it->flag >> 2 & 0x3;
 493                 } else
 494                         err = EINVAL;
 495                 break;
 496         case FW_SRSTREAM:
 497                 if (ir == NULL) {
 498                         for (i = 0; i < fc->nisodma; i ++) {
 499                                 ir = fc->ir[i];
 500                                 if ((ir->flag & FWXFERQ_OPEN) == 0)
 501                                         break;
 502                         }
 503                         if (i >= fc->nisodma) {
 504                                 err = EBUSY;
 505                                 break;
 506                         }
 507                         err = fwdev_allocbuf(fc, ir, &d->bufreq.rx);
 508                         if (err)
 509                                 break;
 510                         ir->flag |=  FWXFERQ_OPEN;
 511                 }
 512                 ir->flag &= ~0xff;
 513                 ir->flag |= (0x3f & ichreq->ch);
 514                 ir->flag |= ((0x3 & ichreq->tag) << 6);
 515                 d->ir = ir;
 516                 err = fc->irx_enable(fc, ir->dmach);
 517                 break;
 518         case FW_GRSTREAM:
 519                 if (d->ir != NULL) {
 520                         ichreq->ch = ir->flag & 0x3f;
 521                         ichreq->tag = ir->flag >> 2 & 0x3;
 522                 } else
 523                         err = EINVAL;
 524                 break;
 525         case FW_SSTBUF:
 526                 bcopy(ibufreq, &d->bufreq, sizeof(d->bufreq));
 527                 break;
 528         case FW_GSTBUF:
 529                 bzero(&ibufreq->rx, sizeof(ibufreq->rx));
 530                 if (ir != NULL) {
 531                         ibufreq->rx.nchunk = ir->bnchunk;
 532                         ibufreq->rx.npacket = ir->bnpacket;
 533                         ibufreq->rx.psize = ir->psize;
 534                 }
 535                 bzero(&ibufreq->tx, sizeof(ibufreq->tx));
 536                 if (it != NULL) {
 537                         ibufreq->tx.nchunk = it->bnchunk;
 538                         ibufreq->tx.npacket = it->bnpacket;
 539                         ibufreq->tx.psize = it->psize;
 540                 }
 541                 break;
 542         case FW_ASYREQ:
 543         {
 544                 struct tcode_info *tinfo;
 545                 int pay_len = 0;
 546
 547                 fp = &asyreq->pkt;
 548                 tinfo = &sc->fc->tcode[fp->mode.hdr.tcode];
 549
 550                 if ((tinfo->flag & FWTI_BLOCK_ASY) != 0)
 551                         pay_len = MAX(0, asyreq->req.len - tinfo->hdr_len);
 552
 553                 xfer = fw_xfer_alloc_buf(M_FWXFER, pay_len, PAGE_SIZE/*XXX*/);
 554                 if (xfer == NULL)
 555                         return (ENOMEM);
 556
 557                 switch (asyreq->req.type) {
 558                 case FWASREQNODE:
 559                         break;
 560                 case FWASREQEUI:
 561                         fwdev = fw_noderesolve_eui64(sc->fc,
 562                                                 &asyreq->req.dst.eui);
 563                         if (fwdev == NULL) {
 564                                 device_printf(sc->fc->bdev,
 565                                         "cannot find node\n");
 566                                 err = EINVAL;
 567                                 goto out;
 568                         }
 569                         fp->mode.hdr.dst = FWLOCALBUS | fwdev->dst;
 570                         break;
 571                 case FWASRESTL:
 572                         /* XXX what's this? */
 573                         break;
 574                 case FWASREQSTREAM:
 575                         /* nothing to do */
 576                         break;
 577                 }
 578
 579                 bcopy(fp, (void *)&xfer->send.hdr, tinfo->hdr_len);
 580                 if (pay_len > 0)
 581                         bcopy((char *)fp + tinfo->hdr_len,
 582                             (void *)&xfer->send.payload, pay_len);
 583                 xfer->send.spd = asyreq->req.sped;
 584                 xfer->act.hand = fw_asy_callback;
 585
 586                 if ((err = fw_asyreq(sc->fc, -1, xfer)) != 0)
 587                         goto out;
 588                 if ((err = tsleep(xfer, FWPRI, "asyreq", hz)) != 0)
 589                         goto out;
 590                 if (xfer->resp != 0) {
 591                         err = EIO;
 592                         goto out;
 593                 }
 594                 if ((tinfo->flag & FWTI_TLABEL) == 0)
 595                         goto out;
 596
 597                 /* copy response */
 598                 tinfo = &sc->fc->tcode[xfer->recv.hdr.mode.hdr.tcode];
 599                 if (asyreq->req.len >= xfer->recv.pay_len + tinfo->hdr_len)
 600                         asyreq->req.len = xfer->recv.pay_len;
 601                 else
 602                         err = EINVAL;
 603                 bcopy(&xfer->recv.hdr, fp, tinfo->hdr_len);
 604                 bcopy(xfer->recv.payload, (char *)fp + tinfo->hdr_len,
 605                     MAX(0, asyreq->req.len - tinfo->hdr_len));
 606 out:
 607                 fw_xfer_free_buf(xfer);
 608                 break;
 609         }
 610         case FW_IBUSRST:
 611                 sc->fc->ibr(sc->fc);
 612                 break;
 613         case FW_CBINDADDR:
 614                 fwb = fw_bindlookup(sc->fc,
 615                                 bindreq->start.hi, bindreq->start.lo);
 616                 if(fwb == NULL){
 617                         err = EINVAL;
 618                         break;
 619                 }
 620                 STAILQ_REMOVE(&sc->fc->binds, fwb, fw_bind, fclist);
 621                 STAILQ_REMOVE(&ir->binds, fwb, fw_bind, chlist);
 622                 free(fwb, M_FW);
 623                 break;
 624         case FW_SBINDADDR:
 625                 if(bindreq->len <= 0 ){
 626                         err = EINVAL;
 627                         break;
 628                 }
 629                 if(bindreq->start.hi > 0xffff ){
 630                         err = EINVAL;
 631                         break;
 632                 }
 633                 fwb = malloc(sizeof (struct fw_bind), M_FW, M_WAITOK);
 634                 fwb->start = ((u_int64_t)bindreq->start.hi << 32) |
 635                     bindreq->start.lo;
 636                 fwb->end = fwb->start +  bindreq->len;
 637                 /* XXX */
 638                 fwb->sub = ir->dmach;
 639                 fwb->act_type = FWACT_CH;
 640
 641                 /* XXX alloc buf */
 642                 xfer = fw_xfer_alloc(M_FWXFER);
 643                 if(xfer == NULL){
 644                         free(fwb, M_FW);
 645                         return (ENOMEM);
 646                 }
 647                 xfer->fc = sc->fc;
 648
 649                 crit_enter();
 650                 /* XXX broken. need multiple xfer */
 651                 STAILQ_INIT(&fwb->xferlist);
 652                 STAILQ_INSERT_TAIL(&fwb->xferlist, xfer, link);
 653                 crit_exit();
 654                 err = fw_bindadd(sc->fc, fwb);
 655                 break;
 656         case FW_GDEVLST:
 657                 i = len = 1;
 658                 /* myself */
 659                 devinfo = &fwdevlst->dev[0];
 660                 devinfo->dst = sc->fc->nodeid;
 661                 devinfo->status = 0;    /* XXX */
 662                 devinfo->eui.hi = sc->fc->eui.hi;
 663                 devinfo->eui.lo = sc->fc->eui.lo;
 664                 STAILQ_FOREACH(fwdev, &sc->fc->devices, link) {
 665                         if(len < FW_MAX_DEVLST){
 666                                 devinfo = &fwdevlst->dev[len++];
 667                                 devinfo->dst = fwdev->dst;
 668                                 devinfo->status =
 669                                         (fwdev->status == FWDEVINVAL)?0:1;
 670                                 devinfo->eui.hi = fwdev->eui.hi;
 671                                 devinfo->eui.lo = fwdev->eui.lo;
 672                         }
 673                         i++;
 674                 }
 675                 fwdevlst->n = i;
 676                 fwdevlst->info_len = len;
 677                 break;
 678         case FW_GTPMAP:
 679                 bcopy(sc->fc->topology_map, data,
 680                                 (sc->fc->topology_map->crc_len + 1) * 4);
 681                 break;
 682         case FW_GCROM:
 683                 STAILQ_FOREACH(fwdev, &sc->fc->devices, link)
 684                         if (FW_EUI64_EQUAL(fwdev->eui, crom_buf->eui))
 685                                 break;
 686                 if (fwdev == NULL) {
 687                         if (!FW_EUI64_EQUAL(sc->fc->eui, crom_buf->eui)) {
 688                                 err = FWNODE_INVAL;
 689                                 break;
 690                         }
 691                         /* myself */
 692                         ptr = malloc(CROMSIZE, M_FW, M_WAITOK);
 693                         len = CROMSIZE;
 694                         for (i = 0; i < CROMSIZE/4; i++)
 695                                 ((u_int32_t *)ptr)[i]
 696                                         = ntohl(sc->fc->config_rom[i]);
 697                 } else {
 698                         /* found */
 699                         ptr = (void *)&fwdev->csrrom[0];
 700                         if (fwdev->rommax < CSRROMOFF)
 701                                 len = 0;
 702                         else
 703                                 len = fwdev->rommax - CSRROMOFF + 4;
 704                 }
 705                 if (crom_buf->len < len)
 706                         len = crom_buf->len;
 707                 else
 708                         crom_buf->len = len;
 709                 err = copyout(ptr, crom_buf->ptr, len);
 710                 if (fwdev == NULL)
 711                         /* myself */
 712                         free(ptr, M_FW);
 713                 break;
 714         default:
 715                 sc->fc->ioctl (dev, cmd, data, flag, td);
 716                 break;
 717         }
 718         return err;
 719 }
 720 int
 721 fw_poll(dev_t dev, int events, fw_proc *td)
 722 {
 723         struct firewire_softc *sc;
 724         struct fw_xferq *ir;
 725         int revents;
 726         int tmp;
 727         int unit = DEV2UNIT(dev);
 728
 729         if (DEV_FWMEM(dev))
 730                 return fwmem_poll(dev, events, td);
 731
 732         sc = devclass_get_softc(firewire_devclass, unit);
 733         ir = ((struct fw_drv1 *)dev->si_drv1)->ir;
 734         revents = 0;
 735         tmp = POLLIN | POLLRDNORM;
 736         if (events & tmp) {
 737                 if (STAILQ_FIRST(&ir->q) != NULL)
 738                         revents |= tmp;
 739                 else
 740                         selrecord(td, &ir->rsel);
 741         }
 742         tmp = POLLOUT | POLLWRNORM;
 743         if (events & tmp) {
 744                 /* XXX should be fixed */
 745                 revents |= tmp;
 746         }
 747
 748         return revents;
 749 }
 750
 751 static int
 752 #if defined(__DragonFly__) || __FreeBSD_version < 500102
 753 fw_mmap (dev_t dev, vm_offset_t offset, int nproto)
 754 #else
 755 fw_mmap (dev_t dev, vm_offset_t offset, vm_paddr_t *paddr, int nproto)
 756 #endif
 757 {
 758         struct firewire_softc *sc;
 759         int unit = DEV2UNIT(dev);
 760
 761         if (DEV_FWMEM(dev))
 762 #if defined(__DragonFly__) || __FreeBSD_version < 500102
 763                 return fwmem_mmap(dev, offset, nproto);
 764 #else
 765                 return fwmem_mmap(dev, offset, paddr, nproto);
 766 #endif
 767
 768         sc = devclass_get_softc(firewire_devclass, unit);
 769
 770         return EINVAL;
 771 }
 772
 773 static void
 774 fw_strategy(struct bio *bp)
 775 {
 776         dev_t dev;
 777
 778         dev = bp->bio_dev;
 779         if (DEV_FWMEM(dev)) {
 780                 fwmem_strategy(bp);
 781                 return;
 782         }
 783
 784         bp->bio_error = EOPNOTSUPP;
 785         bp->bio_flags |= BIO_ERROR;
 786         bp->bio_resid = bp->bio_bcount;
 787         biodone(bp);
 788 }
 789
 790 int
 791 fwdev_makedev(struct firewire_softc *sc)
 792 {
 793         int unit;
 794
 795         unit = device_get_unit(sc->fc->bdev);
 796         cdevsw_add(&firewire_cdevsw, FW_UNITMASK, FW_UNIT(unit));
 797         return(0);
 798 }
 799
 800 int
 801 fwdev_destroydev(struct firewire_softc *sc)
 802 {
 803         int unit;
 804
 805         unit = device_get_unit(sc->fc->bdev);
 806         cdevsw_remove(&firewire_cdevsw, FW_UNITMASK, FW_UNIT(unit));
 807         return(0);
 808 }
 809
 810 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000
 811 #define NDEVTYPE 2
 812 void
 813 fwdev_clone(void *arg, char *name, int namelen, dev_t *dev)
 814 {
 815         struct firewire_softc *sc;
 816         char *devnames[NDEVTYPE] = {"fw", "fwmem"};
 817         char *subp = NULL;
 818         int devflag[NDEVTYPE] = {0, FWMEM_FLAG};
 819         int i, unit = 0, sub = 0;
 820
 821         if (*dev != NODEV)
 822                 return;
 823
 824         for (i = 0; i < NDEVTYPE; i++)
 825                 if (dev_stdclone(name, &subp, devnames[i], &unit) == 2)
 826                         goto found;
 827         /* not match */
 828         return;
 829 found:
 830
 831         if (subp == NULL || *subp++ != '.')
 832                 return;
 833
 834         /* /dev/fwU.S */
 835         while (isdigit(*subp)) {
 836                 sub *= 10;
 837                 sub += *subp++ - '0';
 838         }
 839         if (*subp != '\0')
 840                 return;
 841
 842         sc = devclass_get_softc(firewire_devclass, unit);
 843         if (sc == NULL)
 844                 return;
 845         *dev = make_dev(&firewire_cdevsw, MAKEMINOR(devflag[i], unit, sub),
 846                        UID_ROOT, GID_OPERATOR, 0660,
 847                        "%s%d.%d", devnames[i], unit, sub);
 848         (*dev)->si_flags |= SI_CHEAPCLONE;
 849         dev_depends(sc->dev, *dev);
 850         return;
 851 }
 852 #endif