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 #include <sys/buf.h>
43
44 #include <sys/kernel.h>
45 #include <sys/malloc.h>
46 #include <sys/conf.h>
47 #include <sys/event.h>
48
49 #include <sys/bus.h>
50 #include <sys/ctype.h>
51
52 #include <sys/thread2.h>
53
54 #include <bus/firewire/firewire.h>
55 #include <bus/firewire/firewirereg.h>
56 #include <bus/firewire/fwdma.h>
57 #include <bus/firewire/fwmem.h>
58 #include <bus/firewire/iec68113.h>
59
60 #define FWNODE_INVAL 0xffff
61
62 static d_open_t fw_open;
63 static d_close_t fw_close;
64 static d_ioctl_t fw_ioctl;
65 static d_kqfilter_t fw_kqfilter;
66 static d_read_t fw_read; /* for Isochronous packet */
67 static d_write_t fw_write;
68 static d_mmap_t fw_mmap;
69 static d_strategy_t fw_strategy;
70
71 static void fwfilt_detach(struct knote *);
72 static int fwfilt_read(struct knote *, long);
73 static int fwfilt_write(struct knote *, long);
74
75 struct dev_ops firewire_ops =
76 {
77 { "fw", 0, D_MEM },
78 .d_open = fw_open,
79 .d_close = fw_close,
80 .d_read = fw_read,
81 .d_write = fw_write,
82 .d_ioctl = fw_ioctl,
83 .d_kqfilter = fw_kqfilter,
84 .d_mmap = fw_mmap,
85 .d_strategy = fw_strategy,
86 };
87
88 struct fw_drv1 {
89 struct fw_xferq *ir;
90 struct fw_xferq *it;
91 struct fw_isobufreq bufreq;
92 };
93
94 static int
fwdev_allocbuf(struct firewire_comm * fc,struct fw_xferq * q,struct fw_bufspec * b)95 fwdev_allocbuf(struct firewire_comm *fc, struct fw_xferq *q,
96 struct fw_bufspec *b)
97 {
98 int i;
99
100 if (q->flag & (FWXFERQ_RUNNING | FWXFERQ_EXTBUF))
101 return(EBUSY);
102
103 q->bulkxfer = (struct fw_bulkxfer *) kmalloc(
104 sizeof(struct fw_bulkxfer) * b->nchunk,
105 M_FW, M_WAITOK);
106
107 b->psize = roundup2(b->psize, sizeof(u_int32_t));
108 q->buf = fwdma_malloc_multiseg(fc, sizeof(u_int32_t),
109 b->psize, b->nchunk * b->npacket, BUS_DMA_WAITOK);
110
111 if (q->buf == NULL) {
112 kfree(q->bulkxfer, M_FW);
113 q->bulkxfer = NULL;
114 return(ENOMEM);
115 }
116 q->bnchunk = b->nchunk;
117 q->bnpacket = b->npacket;
118 q->psize = (b->psize + 3) & ~3;
119 q->queued = 0;
120
121 STAILQ_INIT(&q->stvalid);
122 STAILQ_INIT(&q->stfree);
123 STAILQ_INIT(&q->stdma);
124 q->stproc = NULL;
125
126 for(i = 0 ; i < q->bnchunk; i++){
127 q->bulkxfer[i].poffset = i * q->bnpacket;
128 q->bulkxfer[i].mbuf = NULL;
129 STAILQ_INSERT_TAIL(&q->stfree, &q->bulkxfer[i], link);
130 }
131
132 q->flag &= ~FWXFERQ_MODEMASK;
133 q->flag |= FWXFERQ_STREAM;
134 q->flag |= FWXFERQ_EXTBUF;
135
136 return (0);
137 }
138
139 static int
fwdev_freebuf(struct fw_xferq * q)140 fwdev_freebuf(struct fw_xferq *q)
141 {
142 if (q->flag & FWXFERQ_EXTBUF) {
143 if (q->buf != NULL)
144 fwdma_free_multiseg(q->buf);
145 q->buf = NULL;
146 kfree(q->bulkxfer, M_FW);
147 q->bulkxfer = NULL;
148 q->flag &= ~FWXFERQ_EXTBUF;
149 q->psize = 0;
150 q->maxq = FWMAXQUEUE;
151 }
152 return (0);
153 }
154
155
156 static int
fw_open(struct dev_open_args * ap)157 fw_open (struct dev_open_args *ap)
158 {
159 cdev_t dev = ap->a_head.a_dev;
160 int err = 0;
161
162 if (DEV_FWMEM(dev))
163 return fwmem_open(ap);
164
165 if (dev->si_drv1 != NULL)
166 return (EBUSY);
167
168 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000
169 if ((dev->si_flags & SI_NAMED) == 0) {
170 int unit = DEV2UNIT(dev);
171 int sub = DEV2SUB(dev);
172
173 make_dev(&firewire_ops, minor(dev),
174 UID_ROOT, GID_OPERATOR, 0660,
175 "fw%d.%d", unit, sub);
176 }
177 #endif
178
179 dev->si_drv1 = kmalloc(sizeof(struct fw_drv1), M_FW, M_WAITOK | M_ZERO);
180
181 return err;
182 }
183
184 static int
fw_close(struct dev_close_args * ap)185 fw_close (struct dev_close_args *ap)
186 {
187 cdev_t dev = ap->a_head.a_dev;
188 struct firewire_softc *sc;
189 struct firewire_comm *fc;
190 struct fw_drv1 *d;
191 int unit = DEV2UNIT(dev);
192 struct fw_xfer *xfer;
193 struct fw_bind *fwb;
194 int err = 0;
195
196 if (DEV_FWMEM(dev))
197 return fwmem_close(ap);
198
199 sc = devclass_get_softc(firewire_devclass, unit);
200 fc = sc->fc;
201 d = (struct fw_drv1 *)dev->si_drv1;
202
203 if (d->ir != NULL) {
204 struct fw_xferq *ir = d->ir;
205
206 if ((ir->flag & FWXFERQ_OPEN) == 0)
207 return (EINVAL);
208 if (ir->flag & FWXFERQ_RUNNING) {
209 ir->flag &= ~FWXFERQ_RUNNING;
210 fc->irx_disable(fc, ir->dmach);
211 }
212 /* free extbuf */
213 fwdev_freebuf(ir);
214 /* drain receiving buffer */
215 for (xfer = STAILQ_FIRST(&ir->q);
216 xfer != NULL; xfer = STAILQ_FIRST(&ir->q)) {
217 ir->queued --;
218 STAILQ_REMOVE_HEAD(&ir->q, link);
219
220 xfer->resp = 0;
221 fw_xfer_done(xfer);
222 }
223 /* remove binding */
224 for (fwb = STAILQ_FIRST(&ir->binds); fwb != NULL;
225 fwb = STAILQ_FIRST(&ir->binds)) {
226 STAILQ_REMOVE(&fc->binds, fwb, fw_bind, fclist);
227 STAILQ_REMOVE_HEAD(&ir->binds, chlist);
228 kfree(fwb, M_FW);
229 }
230 ir->flag &= ~(FWXFERQ_OPEN |
231 FWXFERQ_MODEMASK | FWXFERQ_CHTAGMASK);
232 d->ir = NULL;
233
234 }
235 if (d->it != NULL) {
236 struct fw_xferq *it = d->it;
237
238 if ((it->flag & FWXFERQ_OPEN) == 0)
239 return (EINVAL);
240 if (it->flag & FWXFERQ_RUNNING) {
241 it->flag &= ~FWXFERQ_RUNNING;
242 fc->itx_disable(fc, it->dmach);
243 }
244 /* free extbuf */
245 fwdev_freebuf(it);
246 it->flag &= ~(FWXFERQ_OPEN |
247 FWXFERQ_MODEMASK | FWXFERQ_CHTAGMASK);
248 d->it = NULL;
249 }
250 kfree(dev->si_drv1, M_FW);
251 dev->si_drv1 = NULL;
252
253 return err;
254 }
255
256 /*
257 * read request.
258 */
259 static int
fw_read(struct dev_read_args * ap)260 fw_read (struct dev_read_args *ap)
261 {
262 cdev_t dev = ap->a_head.a_dev;
263 struct uio *uio = ap->a_uio;
264 struct firewire_softc *sc;
265 struct fw_xferq *ir;
266 struct fw_xfer *xfer;
267 int err = 0, slept = 0;
268 int unit = DEV2UNIT(dev);
269 struct fw_pkt *fp;
270
271 if (DEV_FWMEM(dev))
272 return physread(ap);
273
274 sc = devclass_get_softc(firewire_devclass, unit);
275
276 ir = ((struct fw_drv1 *)dev->si_drv1)->ir;
277 if (ir == NULL || ir->buf == NULL)
278 return (EIO);
279
280 readloop:
281 xfer = STAILQ_FIRST(&ir->q);
282 if (ir->stproc == NULL) {
283 /* iso bulkxfer */
284 ir->stproc = STAILQ_FIRST(&ir->stvalid);
285 if (ir->stproc != NULL) {
286 crit_enter();
287 STAILQ_REMOVE_HEAD(&ir->stvalid, link);
288 crit_exit();
289 ir->queued = 0;
290 }
291 }
292 if (xfer == NULL && ir->stproc == NULL) {
293 /* no data avaliable */
294 if (slept == 0) {
295 slept = 1;
296 ir->flag |= FWXFERQ_WAKEUP;
297 err = tsleep(ir, FWPRI, "fw_read", hz);
298 ir->flag &= ~FWXFERQ_WAKEUP;
299 if (err == 0)
300 goto readloop;
301 } else if (slept == 1)
302 err = EIO;
303 return err;
304 } else if(xfer != NULL) {
305 #if 0 /* XXX broken */
306 /* per packet mode or FWACT_CH bind?*/
307 crit_enter();
308 ir->queued --;
309 STAILQ_REMOVE_HEAD(&ir->q, link);
310 crit_exit();
311 fp = &xfer->recv.hdr;
312 if (sc->fc->irx_post != NULL)
313 sc->fc->irx_post(sc->fc, fp->mode.ld);
314 err = uiomove((void *)fp, 1 /* XXX header size */, uio);
315 /* XXX copy payload too */
316 /* XXX we should recycle this xfer */
317 #endif
318 fw_xfer_free( xfer);
319 } else if(ir->stproc != NULL) {
320 /* iso bulkxfer */
321 fp = (struct fw_pkt *)fwdma_v_addr(ir->buf,
322 ir->stproc->poffset + ir->queued);
323 if(sc->fc->irx_post != NULL)
324 sc->fc->irx_post(sc->fc, fp->mode.ld);
325 if(fp->mode.stream.len == 0){
326 err = EIO;
327 return err;
328 }
329 err = uiomove((caddr_t)fp,
330 fp->mode.stream.len + sizeof(u_int32_t), uio);
331 ir->queued ++;
332 if(ir->queued >= ir->bnpacket){
333 crit_enter();
334 STAILQ_INSERT_TAIL(&ir->stfree, ir->stproc, link);
335 crit_exit();
336 sc->fc->irx_enable(sc->fc, ir->dmach);
337 ir->stproc = NULL;
338 }
339 if (uio->uio_resid >= ir->psize) {
340 slept = -1;
341 goto readloop;
342 }
343 }
344 return err;
345 }
346
347 static int
fw_write(struct dev_write_args * ap)348 fw_write (struct dev_write_args *ap)
349 {
350 cdev_t dev = ap->a_head.a_dev;
351 struct uio *uio = ap->a_uio;
352 int err = 0;
353 struct firewire_softc *sc;
354 int unit = DEV2UNIT(dev);
355 int slept = 0;
356 struct fw_pkt *fp;
357 struct fw_xferq *it;
358
359 if (DEV_FWMEM(dev))
360 return physwrite(ap);
361
362 sc = devclass_get_softc(firewire_devclass, unit);
363 it = ((struct fw_drv1 *)dev->si_drv1)->it;
364 if (it == NULL || it->buf == NULL)
365 return (EIO);
366 isoloop:
367 if (it->stproc == NULL) {
368 it->stproc = STAILQ_FIRST(&it->stfree);
369 if (it->stproc != NULL) {
370 crit_enter();
371 STAILQ_REMOVE_HEAD(&it->stfree, link);
372 crit_exit();
373 it->queued = 0;
374 } else if (slept == 0) {
375 slept = 1;
376 err = sc->fc->itx_enable(sc->fc, it->dmach);
377 if (err)
378 return err;
379 err = tsleep(it, FWPRI, "fw_write", hz);
380 if (err)
381 return err;
382 goto isoloop;
383 } else {
384 err = EIO;
385 return err;
386 }
387 }
388 fp = (struct fw_pkt *)fwdma_v_addr(it->buf,
389 it->stproc->poffset + it->queued);
390 err = uiomove((caddr_t)fp, sizeof(struct fw_isohdr), uio);
391 err = uiomove((caddr_t)fp->mode.stream.payload,
392 fp->mode.stream.len, uio);
393 it->queued ++;
394 if (it->queued >= it->bnpacket) {
395 crit_enter();
396 STAILQ_INSERT_TAIL(&it->stvalid, it->stproc, link);
397 crit_exit();
398 it->stproc = NULL;
399 err = sc->fc->itx_enable(sc->fc, it->dmach);
400 }
401 if (uio->uio_resid >= sizeof(struct fw_isohdr)) {
402 slept = 0;
403 goto isoloop;
404 }
405 return err;
406 }
407 /*
408 * ioctl support.
409 */
410 static int
fw_ioctl(struct dev_ioctl_args * ap)411 fw_ioctl (struct dev_ioctl_args *ap)
412 {
413 cdev_t dev = ap->a_head.a_dev;
414 struct firewire_softc *sc;
415 struct firewire_comm *fc;
416 struct fw_drv1 *d;
417 int unit = DEV2UNIT(dev);
418 int i, len, err = 0;
419 struct fw_device *fwdev;
420 struct fw_bind *fwb;
421 struct fw_xferq *ir, *it;
422 struct fw_xfer *xfer;
423 struct fw_pkt *fp;
424 struct fw_devinfo *devinfo;
425 void *ptr;
426
427 struct fw_devlstreq *fwdevlst = (struct fw_devlstreq *)ap->a_data;
428 struct fw_asyreq *asyreq = (struct fw_asyreq *)ap->a_data;
429 struct fw_isochreq *ichreq = (struct fw_isochreq *)ap->a_data;
430 struct fw_isobufreq *ibufreq = (struct fw_isobufreq *)ap->a_data;
431 struct fw_asybindreq *bindreq = (struct fw_asybindreq *)ap->a_data;
432 struct fw_crom_buf *crom_buf = (struct fw_crom_buf *)ap->a_data;
433
434 if (DEV_FWMEM(dev))
435 return fwmem_ioctl(ap);
436
437 if (!ap->a_data)
438 return(EINVAL);
439
440 sc = devclass_get_softc(firewire_devclass, unit);
441 fc = sc->fc;
442 d = (struct fw_drv1 *)dev->si_drv1;
443 ir = d->ir;
444 it = d->it;
445
446 switch (ap->a_cmd) {
447 case FW_STSTREAM:
448 if (it == NULL) {
449 for (i = 0; i < fc->nisodma; i ++) {
450 it = fc->it[i];
451 if ((it->flag & FWXFERQ_OPEN) == 0)
452 break;
453 }
454 if (i >= fc->nisodma) {
455 err = EBUSY;
456 break;
457 }
458 err = fwdev_allocbuf(fc, it, &d->bufreq.tx);
459 if (err)
460 break;
461 it->flag |= FWXFERQ_OPEN;
462 }
463 it->flag &= ~0xff;
464 it->flag |= (0x3f & ichreq->ch);
465 it->flag |= ((0x3 & ichreq->tag) << 6);
466 d->it = it;
467 break;
468 case FW_GTSTREAM:
469 if (it != NULL) {
470 ichreq->ch = it->flag & 0x3f;
471 ichreq->tag = it->flag >> 2 & 0x3;
472 } else
473 err = EINVAL;
474 break;
475 case FW_SRSTREAM:
476 if (ir == NULL) {
477 for (i = 0; i < fc->nisodma; i ++) {
478 ir = fc->ir[i];
479 if ((ir->flag & FWXFERQ_OPEN) == 0)
480 break;
481 }
482 if (i >= fc->nisodma) {
483 err = EBUSY;
484 break;
485 }
486 err = fwdev_allocbuf(fc, ir, &d->bufreq.rx);
487 if (err)
488 break;
489 ir->flag |= FWXFERQ_OPEN;
490 }
491 ir->flag &= ~0xff;
492 ir->flag |= (0x3f & ichreq->ch);
493 ir->flag |= ((0x3 & ichreq->tag) << 6);
494 d->ir = ir;
495 err = fc->irx_enable(fc, ir->dmach);
496 break;
497 case FW_GRSTREAM:
498 if (d->ir != NULL) {
499 ichreq->ch = ir->flag & 0x3f;
500 ichreq->tag = ir->flag >> 2 & 0x3;
501 } else
502 err = EINVAL;
503 break;
504 case FW_SSTBUF:
505 bcopy(ibufreq, &d->bufreq, sizeof(d->bufreq));
506 break;
507 case FW_GSTBUF:
508 bzero(&ibufreq->rx, sizeof(ibufreq->rx));
509 if (ir != NULL) {
510 ibufreq->rx.nchunk = ir->bnchunk;
511 ibufreq->rx.npacket = ir->bnpacket;
512 ibufreq->rx.psize = ir->psize;
513 }
514 bzero(&ibufreq->tx, sizeof(ibufreq->tx));
515 if (it != NULL) {
516 ibufreq->tx.nchunk = it->bnchunk;
517 ibufreq->tx.npacket = it->bnpacket;
518 ibufreq->tx.psize = it->psize;
519 }
520 break;
521 case FW_ASYREQ:
522 {
523 struct tcode_info *tinfo;
524 int pay_len = 0;
525
526 fp = &asyreq->pkt;
527 tinfo = &sc->fc->tcode[fp->mode.hdr.tcode];
528
529 if ((tinfo->flag & FWTI_BLOCK_ASY) != 0)
530 pay_len = MAX(0, asyreq->req.len - tinfo->hdr_len);
531
532 xfer = fw_xfer_alloc_buf(M_FWXFER, pay_len, PAGE_SIZE/*XXX*/);
533 if (xfer == NULL)
534 return (ENOMEM);
535
536 switch (asyreq->req.type) {
537 case FWASREQNODE:
538 break;
539 case FWASREQEUI:
540 fwdev = fw_noderesolve_eui64(sc->fc,
541 &asyreq->req.dst.eui);
542 if (fwdev == NULL) {
543 device_printf(sc->fc->bdev,
544 "cannot find node\n");
545 err = EINVAL;
546 goto out;
547 }
548 fp->mode.hdr.dst = FWLOCALBUS | fwdev->dst;
549 break;
550 case FWASRESTL:
551 /* XXX what's this? */
552 break;
553 case FWASREQSTREAM:
554 /* nothing to do */
555 break;
556 }
557
558 bcopy(fp, (void *)&xfer->send.hdr, tinfo->hdr_len);
559 if (pay_len > 0)
560 bcopy((char *)fp + tinfo->hdr_len,
561 (void *)&xfer->send.payload, pay_len);
562 xfer->send.spd = asyreq->req.sped;
563 xfer->act.hand = fw_asy_callback;
564
565 if ((err = fw_asyreq(sc->fc, -1, xfer)) != 0)
566 goto out;
567 if ((err = tsleep(xfer, FWPRI, "asyreq", hz)) != 0)
568 goto out;
569 if (xfer->resp != 0) {
570 err = EIO;
571 goto out;
572 }
573 if ((tinfo->flag & FWTI_TLABEL) == 0)
574 goto out;
575
576 /* copy response */
577 tinfo = &sc->fc->tcode[xfer->recv.hdr.mode.hdr.tcode];
578 if (asyreq->req.len >= xfer->recv.pay_len + tinfo->hdr_len)
579 asyreq->req.len = xfer->recv.pay_len;
580 else
581 err = EINVAL;
582 bcopy(&xfer->recv.hdr, fp, tinfo->hdr_len);
583 bcopy(xfer->recv.payload, (char *)fp + tinfo->hdr_len,
584 MAX(0, asyreq->req.len - tinfo->hdr_len));
585 out:
586 fw_xfer_free_buf(xfer);
587 break;
588 }
589 case FW_IBUSRST:
590 sc->fc->ibr(sc->fc);
591 break;
592 case FW_CBINDADDR:
593 fwb = fw_bindlookup(sc->fc,
594 bindreq->start.hi, bindreq->start.lo);
595 if(fwb == NULL){
596 err = EINVAL;
597 break;
598 }
599 STAILQ_REMOVE(&sc->fc->binds, fwb, fw_bind, fclist);
600 STAILQ_REMOVE(&ir->binds, fwb, fw_bind, chlist);
601 kfree(fwb, M_FW);
602 break;
603 case FW_SBINDADDR:
604 if(bindreq->len <= 0 ){
605 err = EINVAL;
606 break;
607 }
608 if(bindreq->start.hi > 0xffff ){
609 err = EINVAL;
610 break;
611 }
612 fwb = kmalloc(sizeof (struct fw_bind), M_FW, M_WAITOK);
613 fwb->start = ((u_int64_t)bindreq->start.hi << 32) |
614 bindreq->start.lo;
615 fwb->end = fwb->start + bindreq->len;
616 /* XXX */
617 fwb->sub = ir->dmach;
618 fwb->act_type = FWACT_CH;
619
620 /* XXX alloc buf */
621 xfer = fw_xfer_alloc(M_FWXFER);
622 if(xfer == NULL){
623 kfree(fwb, M_FW);
624 return (ENOMEM);
625 }
626 xfer->fc = sc->fc;
627
628 crit_enter();
629 /* XXX broken. need multiple xfer */
630 STAILQ_INIT(&fwb->xferlist);
631 STAILQ_INSERT_TAIL(&fwb->xferlist, xfer, link);
632 crit_exit();
633 err = fw_bindadd(sc->fc, fwb);
634 break;
635 case FW_GDEVLST:
636 i = len = 1;
637 /* myself */
638 devinfo = &fwdevlst->dev[0];
639 devinfo->dst = sc->fc->nodeid;
640 devinfo->status = 0; /* XXX */
641 devinfo->eui.hi = sc->fc->eui.hi;
642 devinfo->eui.lo = sc->fc->eui.lo;
643 STAILQ_FOREACH(fwdev, &sc->fc->devices, link) {
644 if(len < FW_MAX_DEVLST){
645 devinfo = &fwdevlst->dev[len++];
646 devinfo->dst = fwdev->dst;
647 devinfo->status =
648 (fwdev->status == FWDEVINVAL)?0:1;
649 devinfo->eui.hi = fwdev->eui.hi;
650 devinfo->eui.lo = fwdev->eui.lo;
651 }
652 i++;
653 }
654 fwdevlst->n = i;
655 fwdevlst->info_len = len;
656 break;
657 case FW_GTPMAP:
658 bcopy(sc->fc->topology_map, ap->a_data,
659 (sc->fc->topology_map->crc_len + 1) * 4);
660 break;
661 case FW_GCROM:
662 STAILQ_FOREACH(fwdev, &sc->fc->devices, link)
663 if (FW_EUI64_EQUAL(fwdev->eui, crom_buf->eui))
664 break;
665 if (fwdev == NULL) {
666 if (!FW_EUI64_EQUAL(sc->fc->eui, crom_buf->eui)) {
667 err = FWNODE_INVAL;
668 break;
669 }
670 /* myself */
671 ptr = kmalloc(CROMSIZE, M_FW, M_WAITOK);
672 len = CROMSIZE;
673 for (i = 0; i < CROMSIZE/4; i++)
674 ((u_int32_t *)ptr)[i]
675 = ntohl(sc->fc->config_rom[i]);
676 } else {
677 /* found */
678 ptr = (void *)&fwdev->csrrom[0];
679 if (fwdev->rommax < CSRROMOFF)
680 len = 0;
681 else
682 len = fwdev->rommax - CSRROMOFF + 4;
683 }
684 if (crom_buf->len < len && crom_buf->len >= 0)
685 len = crom_buf->len;
686 else
687 crom_buf->len = len;
688 err = copyout(ptr, crom_buf->ptr, len);
689 if (fwdev == NULL)
690 /* myself */
691 kfree(ptr, M_FW);
692 break;
693 default:
694 sc->fc->ioctl(ap);
695 break;
696 }
697 return err;
698 }
699
700 static struct filterops fw_read_filterops =
701 { FILTEROP_ISFD, NULL, fwfilt_detach, fwfilt_read };
702 static struct filterops fw_write_filterops =
703 { FILTEROP_ISFD, NULL, fwfilt_detach, fwfilt_write };
704
705 static int
fw_kqfilter(struct dev_kqfilter_args * ap)706 fw_kqfilter(struct dev_kqfilter_args *ap)
707 {
708 cdev_t dev = ap->a_head.a_dev;
709 struct fw_xferq *ir;
710 struct knote *kn = ap->a_kn;
711 struct klist *klist;
712
713 /*
714 * XXX Implement filters for mem?
715 */
716 if (DEV_FWMEM(dev)) {
717 ap->a_result = EOPNOTSUPP;
718 return (0);
719 }
720
721 ir = ((struct fw_drv1 *)dev->si_drv1)->ir;
722
723 ap->a_result = 0;
724
725 switch (kn->kn_filter) {
726 case EVFILT_READ:
727 kn->kn_fop = &fw_read_filterops;
728 kn->kn_hook = (caddr_t)ir;
729 break;
730 case EVFILT_WRITE:
731 kn->kn_fop = &fw_write_filterops;
732 kn->kn_hook = (caddr_t)ir;
733 break;
734 default:
735 ap->a_result = EOPNOTSUPP;
736 return (0);
737 }
738
739 klist = &ir->rkq.ki_note;
740 knote_insert(klist, kn);
741
742 return (0);
743 }
744
745 static void
fwfilt_detach(struct knote * kn)746 fwfilt_detach(struct knote *kn)
747 {
748 struct fw_xferq *ir = (struct fw_xferq *)kn->kn_hook;
749 struct klist *klist = &ir->rkq.ki_note;
750
751 knote_remove(klist, kn);
752 }
753
754 static int
fwfilt_read(struct knote * kn,long hint)755 fwfilt_read(struct knote *kn, long hint)
756 {
757 struct fw_xferq *ir = (struct fw_xferq *)kn->kn_hook;
758 int ready = 0;
759
760 if (STAILQ_FIRST(&ir->q) != NULL)
761 ready = 1;
762
763 return (ready);
764 }
765
766 static int
fwfilt_write(struct knote * kn,long hint)767 fwfilt_write(struct knote *kn, long hint)
768 {
769 /* XXX should be fixed */
770 return (1);
771 }
772
773 static int
fw_mmap(struct dev_mmap_args * ap)774 fw_mmap (struct dev_mmap_args *ap)
775 {
776 cdev_t dev = ap->a_head.a_dev;
777
778 if (DEV_FWMEM(dev))
779 return fwmem_mmap(ap);
780
781 return EINVAL;
782 }
783
784 static int
fw_strategy(struct dev_strategy_args * ap)785 fw_strategy(struct dev_strategy_args *ap)
786 {
787 cdev_t dev = ap->a_head.a_dev;
788 struct bio *bio = ap->a_bio;
789 struct buf *bp = bio->bio_buf;
790
791 if (DEV_FWMEM(dev)) {
792 fwmem_strategy(ap);
793 return(0);
794 }
795 bp->b_error = EOPNOTSUPP;
796 bp->b_flags |= B_ERROR;
797 bp->b_resid = bp->b_bcount;
798 biodone(bio);
799 return(0);
800 }
801
802 int
fwdev_makedev(struct firewire_softc * sc)803 fwdev_makedev(struct firewire_softc *sc)
804 {
805 /*HELPME dev_ops_add(&firewire_ops, FW_UNITMASK, FW_UNIT(unit));*/
806 return(0);
807 }
808
809 int
fwdev_destroydev(struct firewire_softc * sc)810 fwdev_destroydev(struct firewire_softc *sc)
811 {
812 int unit;
813
814 unit = device_get_unit(sc->fc->bdev);
815 dev_ops_remove_minor(&firewire_ops, /*FW_UNITMASK, */FW_UNIT(unit));
816 return(0);
817 }
818
819 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000
820 #define NDEVTYPE 2
821 void
fwdev_clone(void * arg,char * name,int namelen,cdev_t * dev)822 fwdev_clone(void *arg, char *name, int namelen, cdev_t *dev)
823 {
824 struct firewire_softc *sc;
825 char *devnames[NDEVTYPE] = {"fw", "fwmem"};
826 char *subp = NULL;
827 int devflag[NDEVTYPE] = {0, FWMEM_FLAG};
828 int i, unit = 0, sub = 0;
829
830 if (*dev != NULL)
831 return;
832
833 for (i = 0; i < NDEVTYPE; i++)
834 if (dev_stdclone(name, &subp, devnames[i], &unit) == 2)
835 goto found;
836 /* not match */
837 return;
838 found:
839
840 if (subp == NULL || *subp++ != '.')
841 return;
842
843 /* /dev/fwU.S */
844 while (isdigit(*subp)) {
845 sub *= 10;
846 sub += *subp++ - '0';
847 }
848 if (*subp != '\0')
849 return;
850
851 sc = devclass_get_softc(firewire_devclass, unit);
852 if (sc == NULL)
853 return;
854 *dev = make_dev(&firewire_ops, MAKEMINOR(devflag[i], unit, sub),
855 UID_ROOT, GID_OPERATOR, 0660,
856 "%s%d.%d", devnames[i], unit, sub);
857 (*dev)->si_flags |= SI_CHEAPCLONE;
858 dev_depends(sc->dev, *dev);
859 return;
860 }
861 #endif
862