sys/dev/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  * $FreeBSD$
  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/poll.h>
  52
  53 #include <sys/bus.h>
  54 #include <sys/ctype.h>
  55 #include <machine/bus.h>
  56
  57 #include <sys/ioccom.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 FWNODE_INVAL 0xffff
  74
  75 static  d_open_t        fw_open;
  76 static  d_close_t       fw_close;
  77 static  d_ioctl_t       fw_ioctl;
  78 static  d_poll_t        fw_poll;
  79 static  d_read_t        fw_read;        /* for Isochronous packet */
  80 static  d_write_t       fw_write;
  81 static  d_mmap_t        fw_mmap;
  82 static  d_strategy_t    fw_strategy;
  83
  84 struct cdevsw firewire_cdevsw = {
  85 #ifdef __DragonFly__
  86 #define CDEV_MAJOR 127
  87         "fw", CDEV_MAJOR, D_MEM, NULL, 0,
  88         fw_open, fw_close, fw_read, fw_write, fw_ioctl,
  89         fw_poll, fw_mmap, fw_strategy, nodump, nopsize,
  90 #elif __FreeBSD_version >= 500104
  91         .d_version =    D_VERSION,
  92         .d_open =       fw_open,
  93         .d_close =      fw_close,
  94         .d_read =       fw_read,
  95         .d_write =      fw_write,
  96         .d_ioctl =      fw_ioctl,
  97         .d_poll =       fw_poll,
  98         .d_mmap =       fw_mmap,
  99         .d_strategy =   fw_strategy,
 100         .d_name =       "fw",
 101         .d_flags =      D_MEM
 102 #else
 103 #define CDEV_MAJOR 127
 104         fw_open, fw_close, fw_read, fw_write, fw_ioctl,
 105         fw_poll, fw_mmap, fw_strategy, "fw", CDEV_MAJOR,
 106         nodump, nopsize, D_MEM, -1
 107 #endif
 108 };
 109
 110 struct fw_drv1 {
 111         struct firewire_comm *fc;
 112         struct fw_xferq *ir;
 113         struct fw_xferq *it;
 114         struct fw_isobufreq bufreq;
 115         STAILQ_HEAD(, fw_bind) binds;
 116         STAILQ_HEAD(, fw_xfer) rq;
 117 };
 118
 119 static int
 120 fwdev_allocbuf(struct firewire_comm *fc, struct fw_xferq *q,
 121         struct fw_bufspec *b)
 122 {
 123         int i;
 124
 125         if (q->flag & (FWXFERQ_RUNNING | FWXFERQ_EXTBUF))
 126                 return(EBUSY);
 127
 128         q->bulkxfer = (struct fw_bulkxfer *) malloc(
 129                 sizeof(struct fw_bulkxfer) * b->nchunk,
 130                 M_FW, M_WAITOK);
 131         if (q->bulkxfer == NULL)
 132                 return(ENOMEM);
 133
 134         b->psize = roundup2(b->psize, sizeof(uint32_t));
 135         q->buf = fwdma_malloc_multiseg(fc, sizeof(uint32_t),
 136                         b->psize, b->nchunk * b->npacket, BUS_DMA_WAITOK);
 137
 138         if (q->buf == NULL) {
 139                 free(q->bulkxfer, M_FW);
 140                 q->bulkxfer = NULL;
 141                 return(ENOMEM);
 142         }
 143         q->bnchunk = b->nchunk;
 144         q->bnpacket = b->npacket;
 145         q->psize = (b->psize + 3) & ~3;
 146         q->queued = 0;
 147
 148         STAILQ_INIT(&q->stvalid);
 149         STAILQ_INIT(&q->stfree);
 150         STAILQ_INIT(&q->stdma);
 151         q->stproc = NULL;
 152
 153         for(i = 0 ; i < q->bnchunk; i++){
 154                 q->bulkxfer[i].poffset = i * q->bnpacket;
 155                 q->bulkxfer[i].mbuf = NULL;
 156                 STAILQ_INSERT_TAIL(&q->stfree, &q->bulkxfer[i], link);
 157         }
 158
 159         q->flag &= ~FWXFERQ_MODEMASK;
 160         q->flag |= FWXFERQ_STREAM;
 161         q->flag |= FWXFERQ_EXTBUF;
 162
 163         return (0);
 164 }
 165
 166 static int
 167 fwdev_freebuf(struct fw_xferq *q)
 168 {
 169         if (q->flag & FWXFERQ_EXTBUF) {
 170                 if (q->buf != NULL)
 171                         fwdma_free_multiseg(q->buf);
 172                 q->buf = NULL;
 173                 free(q->bulkxfer, M_FW);
 174                 q->bulkxfer = NULL;
 175                 q->flag &= ~FWXFERQ_EXTBUF;
 176                 q->psize = 0;
 177                 q->maxq = FWMAXQUEUE;
 178         }
 179         return (0);
 180 }
 181
 182
 183 static int
 184 fw_open (struct cdev *dev, int flags, int fmt, fw_proc *td)
 185 {
 186         int err = 0;
 187         int unit = DEV2UNIT(dev);
 188         struct fw_drv1 *d;
 189         struct firewire_softc *sc;
 190
 191         if (DEV_FWMEM(dev))
 192                 return fwmem_open(dev, flags, fmt, td);
 193
 194         sc = devclass_get_softc(firewire_devclass, unit);
 195         if (sc == NULL)
 196                 return (ENXIO);
 197
 198         FW_GLOCK(sc->fc);
 199         if (dev->si_drv1 != NULL) {
 200                 FW_GUNLOCK(sc->fc);
 201                 return (EBUSY);
 202         }
 203         /* set dummy value for allocation */
 204         dev->si_drv1 = (void *)-1;
 205         FW_GUNLOCK(sc->fc);
 206
 207         dev->si_drv1 = malloc(sizeof(struct fw_drv1), M_FW, M_WAITOK | M_ZERO);
 208         if (dev->si_drv1 == NULL)
 209                 return (ENOMEM);
 210
 211 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000
 212         if ((dev->si_flags & SI_NAMED) == 0) {
 213                 int unit = DEV2UNIT(dev);
 214                 int sub = DEV2SUB(dev);
 215
 216                 make_dev(&firewire_cdevsw, dev2unit(dev),
 217                         UID_ROOT, GID_OPERATOR, 0660,
 218                         "fw%d.%d", unit, sub);
 219         }
 220 #endif
 221         d = (struct fw_drv1 *)dev->si_drv1;
 222         d->fc = sc->fc;
 223         STAILQ_INIT(&d->binds);
 224         STAILQ_INIT(&d->rq);
 225
 226         return err;
 227 }
 228
 229 static int
 230 fw_close (struct cdev *dev, int flags, int fmt, fw_proc *td)
 231 {
 232         struct firewire_comm *fc;
 233         struct fw_drv1 *d;
 234         struct fw_xfer *xfer;
 235         struct fw_bind *fwb;
 236         int err = 0;
 237
 238         if (DEV_FWMEM(dev))
 239                 return fwmem_close(dev, flags, fmt, td);
 240
 241         d = (struct fw_drv1 *)dev->si_drv1;
 242         fc = d->fc;
 243
 244         /* remove binding */
 245         for (fwb = STAILQ_FIRST(&d->binds); fwb != NULL;
 246                         fwb = STAILQ_FIRST(&d->binds)) {
 247                 fw_bindremove(fc, fwb);
 248                 STAILQ_REMOVE_HEAD(&d->binds, chlist);
 249                 fw_xferlist_remove(&fwb->xferlist);
 250                 free(fwb, M_FW);
 251         }
 252         if (d->ir != NULL) {
 253                 struct fw_xferq *ir = d->ir;
 254
 255                 if ((ir->flag & FWXFERQ_OPEN) == 0)
 256                         return (EINVAL);
 257                 if (ir->flag & FWXFERQ_RUNNING) {
 258                         ir->flag &= ~FWXFERQ_RUNNING;
 259                         fc->irx_disable(fc, ir->dmach);
 260                 }
 261                 /* free extbuf */
 262                 fwdev_freebuf(ir);
 263                 /* drain receiving buffer */
 264                 for (xfer = STAILQ_FIRST(&ir->q);
 265                         xfer != NULL; xfer = STAILQ_FIRST(&ir->q)) {
 266                         ir->queued --;
 267                         STAILQ_REMOVE_HEAD(&ir->q, link);
 268
 269                         xfer->resp = 0;
 270                         fw_xfer_done(xfer);
 271                 }
 272                 ir->flag &= ~(FWXFERQ_OPEN |
 273                         FWXFERQ_MODEMASK | FWXFERQ_CHTAGMASK);
 274                 d->ir = NULL;
 275
 276         }
 277         if (d->it != NULL) {
 278                 struct fw_xferq *it = d->it;
 279
 280                 if ((it->flag & FWXFERQ_OPEN) == 0)
 281                         return (EINVAL);
 282                 if (it->flag & FWXFERQ_RUNNING) {
 283                         it->flag &= ~FWXFERQ_RUNNING;
 284                         fc->itx_disable(fc, it->dmach);
 285                 }
 286                 /* free extbuf */
 287                 fwdev_freebuf(it);
 288                 it->flag &= ~(FWXFERQ_OPEN |
 289                         FWXFERQ_MODEMASK | FWXFERQ_CHTAGMASK);
 290                 d->it = NULL;
 291         }
 292         free(dev->si_drv1, M_FW);
 293         dev->si_drv1 = NULL;
 294
 295         return err;
 296 }
 297
 298 static int
 299 fw_read_async(struct fw_drv1 *d, struct uio *uio, int ioflag)
 300 {
 301         int err = 0, s;
 302         struct fw_xfer *xfer;
 303         struct fw_bind *fwb;
 304         struct fw_pkt *fp;
 305         struct tcode_info *tinfo;
 306
 307         FW_GLOCK(d->fc);
 308         while ((xfer = STAILQ_FIRST(&d->rq)) == NULL && err == 0)
 309                 err = msleep(&d->rq, FW_GMTX(d->fc), FWPRI, "fwra", 0);
 310
 311         if (err != 0) {
 312                 FW_GUNLOCK(d->fc);
 313                 return (err);
 314         }
 315
 316         s = splfw();
 317         STAILQ_REMOVE_HEAD(&d->rq, link);
 318         FW_GUNLOCK(xfer->fc);
 319         splx(s);
 320         fp = &xfer->recv.hdr;
 321 #if 0 /* for GASP ?? */
 322         if (fc->irx_post != NULL)
 323                 fc->irx_post(fc, fp->mode.ld);
 324 #endif
 325         tinfo = &xfer->fc->tcode[fp->mode.hdr.tcode];
 326         err = uiomove((void *)fp, tinfo->hdr_len, uio);
 327         if (err)
 328                 goto out;
 329         err = uiomove((void *)xfer->recv.payload, xfer->recv.pay_len, uio);
 330
 331 out:
 332         /* recycle this xfer */
 333         fwb = (struct fw_bind *)xfer->sc;
 334         fw_xfer_unload(xfer);
 335         xfer->recv.pay_len = PAGE_SIZE;
 336         FW_GLOCK(xfer->fc);
 337         STAILQ_INSERT_TAIL(&fwb->xferlist, xfer, link);
 338         FW_GUNLOCK(xfer->fc);
 339         return (err);
 340 }
 341
 342 /*
 343  * read request.
 344  */
 345 static int
 346 fw_read (struct cdev *dev, struct uio *uio, int ioflag)
 347 {
 348         struct fw_drv1 *d;
 349         struct fw_xferq *ir;
 350         struct firewire_comm *fc;
 351         int err = 0, s, slept = 0;
 352         struct fw_pkt *fp;
 353
 354         if (DEV_FWMEM(dev))
 355                 return (physio(dev, uio, ioflag));
 356
 357         d = (struct fw_drv1 *)dev->si_drv1;
 358         fc = d->fc;
 359         ir = d->ir;
 360
 361         if (ir == NULL)
 362                 return (fw_read_async(d, uio, ioflag));
 363
 364         if (ir->buf == NULL)
 365                 return (EIO);
 366
 367         FW_GLOCK(fc);
 368 readloop:
 369         if (ir->stproc == NULL) {
 370                 /* iso bulkxfer */
 371                 ir->stproc = STAILQ_FIRST(&ir->stvalid);
 372                 if (ir->stproc != NULL) {
 373                         s = splfw();
 374                         STAILQ_REMOVE_HEAD(&ir->stvalid, link);
 375                         splx(s);
 376                         ir->queued = 0;
 377                 }
 378         }
 379         if (ir->stproc == NULL) {
 380                 /* no data avaliable */
 381                 if (slept == 0) {
 382                         slept = 1;
 383                         ir->flag |= FWXFERQ_WAKEUP;
 384                         err = msleep(ir, FW_GMTX(fc), FWPRI, "fw_read", hz);
 385                         ir->flag &= ~FWXFERQ_WAKEUP;
 386                         if (err == 0)
 387                                 goto readloop;
 388                 } else if (slept == 1)
 389                         err = EIO;
 390                 FW_GUNLOCK(fc);
 391                 return err;
 392         } else if(ir->stproc != NULL) {
 393                 /* iso bulkxfer */
 394                 FW_GUNLOCK(fc);
 395                 fp = (struct fw_pkt *)fwdma_v_addr(ir->buf,
 396                                 ir->stproc->poffset + ir->queued);
 397                 if(fc->irx_post != NULL)
 398                         fc->irx_post(fc, fp->mode.ld);
 399                 if(fp->mode.stream.len == 0){
 400                         err = EIO;
 401                         return err;
 402                 }
 403                 err = uiomove((caddr_t)fp,
 404                         fp->mode.stream.len + sizeof(uint32_t), uio);
 405                 ir->queued ++;
 406                 if(ir->queued >= ir->bnpacket){
 407                         s = splfw();
 408                         STAILQ_INSERT_TAIL(&ir->stfree, ir->stproc, link);
 409                         splx(s);
 410                         fc->irx_enable(fc, ir->dmach);
 411                         ir->stproc = NULL;
 412                 }
 413                 if (uio->uio_resid >= ir->psize) {
 414                         slept = -1;
 415                         FW_GLOCK(fc);
 416                         goto readloop;
 417                 }
 418         }
 419         return err;
 420 }
 421
 422 static int
 423 fw_write_async(struct fw_drv1 *d, struct uio *uio, int ioflag)
 424 {
 425         struct fw_xfer *xfer;
 426         struct fw_pkt pkt;
 427         struct tcode_info *tinfo;
 428         int err;
 429
 430         bzero(&pkt, sizeof(struct fw_pkt));
 431         if ((err = uiomove((caddr_t)&pkt, sizeof(uint32_t), uio)))
 432                 return (err);
 433         tinfo = &d->fc->tcode[pkt.mode.hdr.tcode];
 434         if ((err = uiomove((caddr_t)&pkt + sizeof(uint32_t),
 435             tinfo->hdr_len - sizeof(uint32_t), uio)))
 436                 return (err);
 437
 438         if ((xfer = fw_xfer_alloc_buf(M_FWXFER, uio->uio_resid,
 439             PAGE_SIZE/*XXX*/)) == NULL)
 440                 return (ENOMEM);
 441
 442         bcopy(&pkt, &xfer->send.hdr, sizeof(struct fw_pkt));
 443         xfer->send.pay_len = uio->uio_resid;
 444         if (uio->uio_resid > 0) {
 445                 if ((err = uiomove((caddr_t)&xfer->send.payload[0],
 446                     uio->uio_resid, uio)))
 447                         goto out;
 448         }
 449
 450         xfer->fc = d->fc;
 451         xfer->sc = NULL;
 452         xfer->hand = fw_xferwake;
 453         xfer->send.spd = 2 /* XXX */;
 454
 455         if ((err = fw_asyreq(xfer->fc, -1, xfer)))
 456                 goto out;
 457
 458         if ((err = fw_xferwait(xfer)))
 459                 goto out;
 460
 461         if (xfer->resp != 0) {
 462                 err = xfer->resp;
 463                 goto out;
 464         }
 465
 466         if (xfer->flag & FWXF_RCVD) {
 467                 FW_GLOCK(xfer->fc);
 468                 STAILQ_INSERT_TAIL(&d->rq, xfer, link);
 469                 FW_GUNLOCK(xfer->fc);
 470                 return (0);
 471         }
 472
 473 out:
 474         fw_xfer_free(xfer);
 475         return (err);
 476 }
 477
 478 static int
 479 fw_write (struct cdev *dev, struct uio *uio, int ioflag)
 480 {
 481         int err = 0;
 482         int s, slept = 0;
 483         struct fw_drv1 *d;
 484         struct fw_pkt *fp;
 485         struct firewire_comm *fc;
 486         struct fw_xferq *it;
 487
 488         if (DEV_FWMEM(dev))
 489                 return (physio(dev, uio, ioflag));
 490
 491         d = (struct fw_drv1 *)dev->si_drv1;
 492         fc = d->fc;
 493         it = d->it;
 494
 495         if (it == NULL)
 496                 return (fw_write_async(d, uio, ioflag));
 497
 498         if (it->buf == NULL)
 499                 return (EIO);
 500
 501         FW_GLOCK(fc);
 502 isoloop:
 503         if (it->stproc == NULL) {
 504                 it->stproc = STAILQ_FIRST(&it->stfree);
 505                 if (it->stproc != NULL) {
 506                         s = splfw();
 507                         STAILQ_REMOVE_HEAD(&it->stfree, link);
 508                         splx(s);
 509                         it->queued = 0;
 510                 } else if (slept == 0) {
 511                         slept = 1;
 512 #if 0   /* XXX to avoid lock recursion */
 513                         err = fc->itx_enable(fc, it->dmach);
 514                         if (err)
 515                                 goto out;
 516 #endif
 517                         err = msleep(it, FW_GMTX(fc), FWPRI, "fw_write", hz);
 518                         if (err)
 519                                 goto out;
 520                         goto isoloop;
 521                 } else {
 522                         err = EIO;
 523                         goto out;
 524                 }
 525         }
 526         FW_GUNLOCK(fc);
 527         fp = (struct fw_pkt *)fwdma_v_addr(it->buf,
 528                         it->stproc->poffset + it->queued);
 529         err = uiomove((caddr_t)fp, sizeof(struct fw_isohdr), uio);
 530         err = uiomove((caddr_t)fp->mode.stream.payload,
 531                                 fp->mode.stream.len, uio);
 532         it->queued ++;
 533         if (it->queued >= it->bnpacket) {
 534                 s = splfw();
 535                 STAILQ_INSERT_TAIL(&it->stvalid, it->stproc, link);
 536                 splx(s);
 537                 it->stproc = NULL;
 538                 err = fc->itx_enable(fc, it->dmach);
 539         }
 540         if (uio->uio_resid >= sizeof(struct fw_isohdr)) {
 541                 slept = 0;
 542                 FW_GLOCK(fc);
 543                 goto isoloop;
 544         }
 545         return err;
 546
 547 out:
 548         FW_GUNLOCK(fc);
 549         return err;
 550 }
 551
 552 static void
 553 fw_hand(struct fw_xfer *xfer)
 554 {
 555         struct fw_bind *fwb;
 556         struct fw_drv1 *d;
 557
 558         fwb = (struct fw_bind *)xfer->sc;
 559         d = (struct fw_drv1 *)fwb->sc;
 560         FW_GLOCK(xfer->fc);
 561         STAILQ_INSERT_TAIL(&d->rq, xfer, link);
 562         FW_GUNLOCK(xfer->fc);
 563         wakeup(&d->rq);
 564 }
 565
 566 /*
 567  * ioctl support.
 568  */
 569 int
 570 fw_ioctl (struct cdev *dev, u_long cmd, caddr_t data, int flag, fw_proc *td)
 571 {
 572         struct firewire_comm *fc;
 573         struct fw_drv1 *d;
 574         int i, len, err = 0;
 575         struct fw_device *fwdev;
 576         struct fw_bind *fwb;
 577         struct fw_xferq *ir, *it;
 578         struct fw_xfer *xfer;
 579         struct fw_pkt *fp;
 580         struct fw_devinfo *devinfo;
 581         void *ptr;
 582
 583         struct fw_devlstreq *fwdevlst = (struct fw_devlstreq *)data;
 584         struct fw_asyreq *asyreq = (struct fw_asyreq *)data;
 585         struct fw_isochreq *ichreq = (struct fw_isochreq *)data;
 586         struct fw_isobufreq *ibufreq = (struct fw_isobufreq *)data;
 587         struct fw_asybindreq *bindreq = (struct fw_asybindreq *)data;
 588         struct fw_crom_buf *crom_buf = (struct fw_crom_buf *)data;
 589
 590         if (DEV_FWMEM(dev))
 591                 return fwmem_ioctl(dev, cmd, data, flag, td);
 592
 593         if (!data)
 594                 return(EINVAL);
 595
 596         d = (struct fw_drv1 *)dev->si_drv1;
 597         fc = d->fc;
 598         ir = d->ir;
 599         it = d->it;
 600
 601         switch (cmd) {
 602         case FW_STSTREAM:
 603                 if (it == NULL) {
 604                         i = fw_open_isodma(fc, /* tx */1);
 605                         if (i < 0) {
 606                                 err = EBUSY;
 607                                 break;
 608                         }
 609                         it = fc->it[i];
 610                         err = fwdev_allocbuf(fc, it, &d->bufreq.tx);
 611                         if (err) {
 612                                 it->flag &= ~FWXFERQ_OPEN;
 613                                 break;
 614                         }
 615                 }
 616                 it->flag &= ~0xff;
 617                 it->flag |= (0x3f & ichreq->ch);
 618                 it->flag |= ((0x3 & ichreq->tag) << 6);
 619                 d->it = it;
 620                 break;
 621         case FW_GTSTREAM:
 622                 if (it != NULL) {
 623                         ichreq->ch = it->flag & 0x3f;
 624                         ichreq->tag = it->flag >> 2 & 0x3;
 625                 } else
 626                         err = EINVAL;
 627                 break;
 628         case FW_SRSTREAM:
 629                 if (ir == NULL) {
 630                         i = fw_open_isodma(fc, /* tx */0);
 631                         if (i < 0) {
 632                                 err = EBUSY;
 633                                 break;
 634                         }
 635                         ir = fc->ir[i];
 636                         err = fwdev_allocbuf(fc, ir, &d->bufreq.rx);
 637                         if (err) {
 638                                 ir->flag &= ~FWXFERQ_OPEN;
 639                                 break;
 640                         }
 641                 }
 642                 ir->flag &= ~0xff;
 643                 ir->flag |= (0x3f & ichreq->ch);
 644                 ir->flag |= ((0x3 & ichreq->tag) << 6);
 645                 d->ir = ir;
 646                 err = fc->irx_enable(fc, ir->dmach);
 647                 break;
 648         case FW_GRSTREAM:
 649                 if (d->ir != NULL) {
 650                         ichreq->ch = ir->flag & 0x3f;
 651                         ichreq->tag = ir->flag >> 2 & 0x3;
 652                 } else
 653                         err = EINVAL;
 654                 break;
 655         case FW_SSTBUF:
 656                 bcopy(ibufreq, &d->bufreq, sizeof(d->bufreq));
 657                 break;
 658         case FW_GSTBUF:
 659                 bzero(&ibufreq->rx, sizeof(ibufreq->rx));
 660                 if (ir != NULL) {
 661                         ibufreq->rx.nchunk = ir->bnchunk;
 662                         ibufreq->rx.npacket = ir->bnpacket;
 663                         ibufreq->rx.psize = ir->psize;
 664                 }
 665                 bzero(&ibufreq->tx, sizeof(ibufreq->tx));
 666                 if (it != NULL) {
 667                         ibufreq->tx.nchunk = it->bnchunk;
 668                         ibufreq->tx.npacket = it->bnpacket;
 669                         ibufreq->tx.psize = it->psize;
 670                 }
 671                 break;
 672         case FW_ASYREQ:
 673         {
 674                 struct tcode_info *tinfo;
 675                 int pay_len = 0;
 676
 677                 fp = &asyreq->pkt;
 678                 tinfo = &fc->tcode[fp->mode.hdr.tcode];
 679
 680                 if ((tinfo->flag & FWTI_BLOCK_ASY) != 0)
 681                         pay_len = MAX(0, asyreq->req.len - tinfo->hdr_len);
 682
 683                 xfer = fw_xfer_alloc_buf(M_FWXFER, pay_len, PAGE_SIZE/*XXX*/);
 684                 if (xfer == NULL)
 685                         return (ENOMEM);
 686
 687                 switch (asyreq->req.type) {
 688                 case FWASREQNODE:
 689                         break;
 690                 case FWASREQEUI:
 691                         fwdev = fw_noderesolve_eui64(fc,
 692                                                 &asyreq->req.dst.eui);
 693                         if (fwdev == NULL) {
 694                                 device_printf(fc->bdev,
 695                                         "cannot find node\n");
 696                                 err = EINVAL;
 697                                 goto out;
 698                         }
 699                         fp->mode.hdr.dst = FWLOCALBUS | fwdev->dst;
 700                         break;
 701                 case FWASRESTL:
 702                         /* XXX what's this? */
 703                         break;
 704                 case FWASREQSTREAM:
 705                         /* nothing to do */
 706                         break;
 707                 }
 708
 709                 bcopy(fp, (void *)&xfer->send.hdr, tinfo->hdr_len);
 710                 if (pay_len > 0)
 711                         bcopy((char *)fp + tinfo->hdr_len,
 712                             (void *)xfer->send.payload, pay_len);
 713                 xfer->send.spd = asyreq->req.sped;
 714                 xfer->hand = fw_xferwake;
 715
 716                 if ((err = fw_asyreq(fc, -1, xfer)) != 0)
 717                         goto out;
 718                 if ((err = fw_xferwait(xfer)) != 0)
 719                         goto out;
 720                 if (xfer->resp != 0) {
 721                         err = EIO;
 722                         goto out;
 723                 }
 724                 if ((tinfo->flag & FWTI_TLABEL) == 0)
 725                         goto out;
 726
 727                 /* copy response */
 728                 tinfo = &fc->tcode[xfer->recv.hdr.mode.hdr.tcode];
 729                 if (xfer->recv.hdr.mode.hdr.tcode == FWTCODE_RRESB ||
 730                     xfer->recv.hdr.mode.hdr.tcode == FWTCODE_LRES) {
 731                         pay_len = xfer->recv.pay_len;
 732                         if (asyreq->req.len >= xfer->recv.pay_len + tinfo->hdr_len) {
 733                                 asyreq->req.len = xfer->recv.pay_len +
 734                                         tinfo->hdr_len;
 735                         } else {
 736                                 err = EINVAL;
 737                                 pay_len = 0;
 738                         }
 739                 } else {
 740                         pay_len = 0;
 741                 }
 742                 bcopy(&xfer->recv.hdr, fp, tinfo->hdr_len);
 743                 bcopy(xfer->recv.payload, (char *)fp + tinfo->hdr_len, pay_len);
 744 out:
 745                 fw_xfer_free_buf(xfer);
 746                 break;
 747         }
 748         case FW_IBUSRST:
 749                 fc->ibr(fc);
 750                 break;
 751         case FW_CBINDADDR:
 752                 fwb = fw_bindlookup(fc,
 753                                 bindreq->start.hi, bindreq->start.lo);
 754                 if(fwb == NULL){
 755                         err = EINVAL;
 756                         break;
 757                 }
 758                 fw_bindremove(fc, fwb);
 759                 STAILQ_REMOVE(&d->binds, fwb, fw_bind, chlist);
 760                 fw_xferlist_remove(&fwb->xferlist);
 761                 free(fwb, M_FW);
 762                 break;
 763         case FW_SBINDADDR:
 764                 if(bindreq->len <= 0 ){
 765                         err = EINVAL;
 766                         break;
 767                 }
 768                 if(bindreq->start.hi > 0xffff ){
 769                         err = EINVAL;
 770                         break;
 771                 }
 772                 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_FW, M_WAITOK);
 773                 if(fwb == NULL){
 774                         err = ENOMEM;
 775                         break;
 776                 }
 777                 fwb->start = ((u_int64_t)bindreq->start.hi << 32) |
 778                     bindreq->start.lo;
 779                 fwb->end = fwb->start +  bindreq->len;
 780                 fwb->sc = (void *)d;
 781                 STAILQ_INIT(&fwb->xferlist);
 782                 err = fw_bindadd(fc, fwb);
 783                 if (err == 0) {
 784                         fw_xferlist_add(&fwb->xferlist, M_FWXFER,
 785                             /* XXX */
 786                             PAGE_SIZE, PAGE_SIZE, 5,
 787                             fc, (void *)fwb, fw_hand);
 788                         STAILQ_INSERT_TAIL(&d->binds, fwb, chlist);
 789                 }
 790                 break;
 791         case FW_GDEVLST:
 792                 i = len = 1;
 793                 /* myself */
 794                 devinfo = &fwdevlst->dev[0];
 795                 devinfo->dst = fc->nodeid;
 796                 devinfo->status = 0;    /* XXX */
 797                 devinfo->eui.hi = fc->eui.hi;
 798                 devinfo->eui.lo = fc->eui.lo;
 799                 STAILQ_FOREACH(fwdev, &fc->devices, link) {
 800                         if(len < FW_MAX_DEVLST){
 801                                 devinfo = &fwdevlst->dev[len++];
 802                                 devinfo->dst = fwdev->dst;
 803                                 devinfo->status =
 804                                         (fwdev->status == FWDEVINVAL)?0:1;
 805                                 devinfo->eui.hi = fwdev->eui.hi;
 806                                 devinfo->eui.lo = fwdev->eui.lo;
 807                         }
 808                         i++;
 809                 }
 810                 fwdevlst->n = i;
 811                 fwdevlst->info_len = len;
 812                 break;
 813         case FW_GTPMAP:
 814                 bcopy(fc->topology_map, data,
 815                                 (fc->topology_map->crc_len + 1) * 4);
 816                 break;
 817         case FW_GCROM:
 818                 STAILQ_FOREACH(fwdev, &fc->devices, link)
 819                         if (FW_EUI64_EQUAL(fwdev->eui, crom_buf->eui))
 820                                 break;
 821                 if (fwdev == NULL) {
 822                         if (!FW_EUI64_EQUAL(fc->eui, crom_buf->eui)) {
 823                                 err = FWNODE_INVAL;
 824                                 break;
 825                         }
 826                         /* myself */
 827                         ptr = malloc(CROMSIZE, M_FW, M_WAITOK);
 828                         len = CROMSIZE;
 829                         for (i = 0; i < CROMSIZE/4; i++)
 830                                 ((uint32_t *)ptr)[i]
 831                                         = ntohl(fc->config_rom[i]);
 832                 } else {
 833                         /* found */
 834                         ptr = (void *)&fwdev->csrrom[0];
 835                         if (fwdev->rommax < CSRROMOFF)
 836                                 len = 0;
 837                         else
 838                                 len = fwdev->rommax - CSRROMOFF + 4;
 839                 }
 840                 if (crom_buf->len < len)
 841                         len = crom_buf->len;
 842                 else
 843                         crom_buf->len = len;
 844                 err = copyout(ptr, crom_buf->ptr, len);
 845                 if (fwdev == NULL)
 846                         /* myself */
 847                         free(ptr, M_FW);
 848                 break;
 849         default:
 850                 fc->ioctl (dev, cmd, data, flag, td);
 851                 break;
 852         }
 853         return err;
 854 }
 855 int
 856 fw_poll(struct cdev *dev, int events, fw_proc *td)
 857 {
 858         struct fw_xferq *ir;
 859         int revents;
 860         int tmp;
 861
 862         if (DEV_FWMEM(dev))
 863                 return fwmem_poll(dev, events, td);
 864
 865         ir = ((struct fw_drv1 *)dev->si_drv1)->ir;
 866         revents = 0;
 867         tmp = POLLIN | POLLRDNORM;
 868         if (events & tmp) {
 869                 if (STAILQ_FIRST(&ir->q) != NULL)
 870                         revents |= tmp;
 871                 else
 872                         selrecord(td, &ir->rsel);
 873         }
 874         tmp = POLLOUT | POLLWRNORM;
 875         if (events & tmp) {
 876                 /* XXX should be fixed */
 877                 revents |= tmp;
 878         }
 879
 880         return revents;
 881 }
 882
 883 static int
 884 #if defined(__DragonFly__) || __FreeBSD_version < 500102
 885 fw_mmap (struct cdev *dev, vm_offset_t offset, int nproto)
 886 #else
 887 fw_mmap (struct cdev *dev, vm_ooffset_t offset, vm_paddr_t *paddr,
 888     int nproto, vm_memattr_t *memattr)
 889 #endif
 890 {
 891
 892         if (DEV_FWMEM(dev))
 893 #if defined(__DragonFly__) || __FreeBSD_version < 500102
 894                 return fwmem_mmap(dev, offset, nproto);
 895 #else
 896                 return fwmem_mmap(dev, offset, paddr, nproto, memattr);
 897 #endif
 898
 899         return EINVAL;
 900 }
 901
 902 static void
 903 fw_strategy(struct bio *bp)
 904 {
 905         struct cdev *dev;
 906
 907         dev = bp->bio_dev;
 908         if (DEV_FWMEM(dev)) {
 909                 fwmem_strategy(bp);
 910                 return;
 911         }
 912
 913         bp->bio_error = EOPNOTSUPP;
 914         bp->bio_flags |= BIO_ERROR;
 915         bp->bio_resid = bp->bio_bcount;
 916         biodone(bp);
 917 }
 918
 919 int
 920 fwdev_makedev(struct firewire_softc *sc)
 921 {
 922         int err = 0;
 923
 924 #if defined(__DragonFly__) || __FreeBSD_version < 500000
 925         cdevsw_add(&firewire_cdevsw);
 926 #else
 927         struct cdev *d;
 928         int unit;
 929
 930         unit = device_get_unit(sc->fc->bdev);
 931         sc->dev = make_dev(&firewire_cdevsw, MAKEMINOR(0, unit, 0),
 932                         UID_ROOT, GID_OPERATOR, 0660,
 933                         "fw%d.%d", unit, 0);
 934         d = make_dev(&firewire_cdevsw,
 935                         MAKEMINOR(FWMEM_FLAG, unit, 0),
 936                         UID_ROOT, GID_OPERATOR, 0660,
 937                         "fwmem%d.%d", unit, 0);
 938         dev_depends(sc->dev, d);
 939         make_dev_alias(sc->dev, "fw%d", unit);
 940         make_dev_alias(d, "fwmem%d", unit);
 941 #endif
 942
 943         return (err);
 944 }
 945
 946 int
 947 fwdev_destroydev(struct firewire_softc *sc)
 948 {
 949         int err = 0;
 950
 951 #if defined(__DragonFly__) || __FreeBSD_version < 500000
 952         cdevsw_remove(&firewire_cdevsw);
 953 #else
 954         destroy_dev(sc->dev);
 955 #endif
 956         return (err);
 957 }
 958
 959 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000
 960 #define NDEVTYPE 2
 961 void
 962 fwdev_clone(void *arg, struct ucred *cred, char *name, int namelen,
 963     struct cdev **dev)
 964 {
 965         struct firewire_softc *sc;
 966         char *devnames[NDEVTYPE] = {"fw", "fwmem"};
 967         char *subp = NULL;
 968         int devflag[NDEVTYPE] = {0, FWMEM_FLAG};
 969         int i, unit = 0, sub = 0;
 970
 971         if (*dev != NULL)
 972                 return;
 973
 974         for (i = 0; i < NDEVTYPE; i++)
 975                 if (dev_stdclone(name, &subp, devnames[i], &unit) == 2)
 976                         goto found;
 977         /* not match */
 978         return;
 979 found:
 980
 981         if (subp == NULL || *subp++ != '.')
 982                 return;
 983
 984         /* /dev/fwU.S */
 985         while (isdigit(*subp)) {
 986                 sub *= 10;
 987                 sub += *subp++ - '0';
 988         }
 989         if (*subp != '\0')
 990                 return;
 991
 992         sc = devclass_get_softc(firewire_devclass, unit);
 993         if (sc == NULL)
 994                 return;
 995         *dev = make_dev(&firewire_cdevsw, MAKEMINOR(devflag[i], unit, sub),
 996                        UID_ROOT, GID_OPERATOR, 0660,
 997                        "%s%d.%d", devnames[i], unit, sub);
 998         dev_ref(*dev);
 999         (*dev)->si_flags |= SI_CHEAPCLONE;
1000         dev_depends(sc->dev, *dev);
1001         return;
1002 }
1003 #endif