1 /*-
2 * SPDX-License-Identifier: BSD-4-Clause
3 *
4 * Copyright (c) 2003 Hidetoshi Shimokawa
5 * Copyright (c) 1998-2002 Katsushi Kobayashi and Hidetoshi Shimokawa
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the acknowledgement as bellow:
18 *
19 * This product includes software developed by K. Kobayashi and H. Shimokawa
20 *
21 * 4. The name of the author may not be used to endorse or promote products
22 * derived from this software without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
25 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
26 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
27 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
28 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
29 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
30 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
32 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
33 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
34 * POSSIBILITY OF SUCH DAMAGE.
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/bio.h>
43
44 #include <sys/kernel.h>
45 #include <sys/malloc.h>
46 #include <sys/conf.h>
47 #include <sys/poll.h>
48
49 #include <sys/bus.h>
50 #include <sys/ctype.h>
51 #include <machine/bus.h>
52
53 #include <sys/ioccom.h>
54
55 #include <dev/firewire/firewire.h>
56 #include <dev/firewire/firewirereg.h>
57 #include <dev/firewire/fwdma.h>
58 #include <dev/firewire/fwmem.h>
59 #include <dev/firewire/iec68113.h>
60
61 #define FWNODE_INVAL 0xffff
62
63 static d_open_t fw_open;
64 static d_close_t fw_close;
65 static d_ioctl_t fw_ioctl;
66 static d_poll_t fw_poll;
67 static d_read_t fw_read; /* for Isochronous packet */
68 static d_write_t fw_write;
69 static d_mmap_t fw_mmap;
70 static d_strategy_t fw_strategy;
71
72 struct cdevsw firewire_cdevsw = {
73 .d_version = D_VERSION,
74 .d_open = fw_open,
75 .d_close = fw_close,
76 .d_read = fw_read,
77 .d_write = fw_write,
78 .d_ioctl = fw_ioctl,
79 .d_poll = fw_poll,
80 .d_mmap = fw_mmap,
81 .d_strategy = fw_strategy,
82 .d_name = "fw",
83 };
84
85 struct fw_drv1 {
86 struct firewire_comm *fc;
87 struct fw_xferq *ir;
88 struct fw_xferq *it;
89 struct fw_isobufreq bufreq;
90 STAILQ_HEAD(, fw_bind) binds;
91 STAILQ_HEAD(, fw_xfer) rq;
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 = malloc(sizeof(struct fw_bulkxfer) * b->nchunk,
104 M_FW, M_WAITOK);
105
106 b->psize = roundup2(b->psize, sizeof(uint32_t));
107 q->buf = fwdma_malloc_multiseg(fc, sizeof(uint32_t),
108 b->psize, b->nchunk * b->npacket, BUS_DMA_WAITOK);
109
110 if (q->buf == NULL) {
111 free(q->bulkxfer, M_FW);
112 q->bulkxfer = NULL;
113 return (ENOMEM);
114 }
115 q->bnchunk = b->nchunk;
116 q->bnpacket = b->npacket;
117 q->psize = (b->psize + 3) & ~3;
118 q->queued = 0;
119
120 STAILQ_INIT(&q->stvalid);
121 STAILQ_INIT(&q->stfree);
122 STAILQ_INIT(&q->stdma);
123 q->stproc = NULL;
124
125 for (i = 0; i < q->bnchunk; i++) {
126 q->bulkxfer[i].poffset = i * q->bnpacket;
127 q->bulkxfer[i].mbuf = NULL;
128 STAILQ_INSERT_TAIL(&q->stfree, &q->bulkxfer[i], link);
129 }
130
131 q->flag &= ~FWXFERQ_MODEMASK;
132 q->flag |= FWXFERQ_STREAM;
133 q->flag |= FWXFERQ_EXTBUF;
134
135 return (0);
136 }
137
138 static int
fwdev_freebuf(struct fw_xferq * q)139 fwdev_freebuf(struct fw_xferq *q)
140 {
141 if (q->flag & FWXFERQ_EXTBUF) {
142 if (q->buf != NULL)
143 fwdma_free_multiseg(q->buf);
144 q->buf = NULL;
145 free(q->bulkxfer, M_FW);
146 q->bulkxfer = NULL;
147 q->flag &= ~FWXFERQ_EXTBUF;
148 q->psize = 0;
149 q->maxq = FWMAXQUEUE;
150 }
151 return (0);
152 }
153
154
155 static int
fw_open(struct cdev * dev,int flags,int fmt,fw_proc * td)156 fw_open(struct cdev *dev, int flags, int fmt, fw_proc *td)
157 {
158 int err = 0;
159 int unit = DEV2UNIT(dev);
160 struct fw_drv1 *d;
161 struct firewire_softc *sc;
162
163 if (DEV_FWMEM(dev))
164 return fwmem_open(dev, flags, fmt, td);
165
166 sc = devclass_get_softc(firewire_devclass, unit);
167 if (sc == NULL)
168 return (ENXIO);
169
170 FW_GLOCK(sc->fc);
171 if (dev->si_drv1 != NULL) {
172 FW_GUNLOCK(sc->fc);
173 return (EBUSY);
174 }
175 /* set dummy value for allocation */
176 dev->si_drv1 = (void *)-1;
177 FW_GUNLOCK(sc->fc);
178
179 dev->si_drv1 = malloc(sizeof(struct fw_drv1), M_FW, M_WAITOK | M_ZERO);
180
181 if ((dev->si_flags & SI_NAMED) == 0) {
182 int unit = DEV2UNIT(dev);
183 int sub = DEV2SUB(dev);
184
185 make_dev(&firewire_cdevsw, dev2unit(dev),
186 UID_ROOT, GID_OPERATOR, 0660, "fw%d.%d", unit, sub);
187 }
188
189 d = dev->si_drv1;
190 d->fc = sc->fc;
191 STAILQ_INIT(&d->binds);
192 STAILQ_INIT(&d->rq);
193
194 return err;
195 }
196
197 static int
fw_close(struct cdev * dev,int flags,int fmt,fw_proc * td)198 fw_close(struct cdev *dev, int flags, int fmt, fw_proc *td)
199 {
200 struct firewire_comm *fc;
201 struct fw_drv1 *d;
202 struct fw_xfer *xfer;
203 struct fw_bind *fwb;
204 int err = 0;
205
206 if (DEV_FWMEM(dev))
207 return fwmem_close(dev, flags, fmt, td);
208
209 d = dev->si_drv1;
210 fc = d->fc;
211
212 /* remove binding */
213 for (fwb = STAILQ_FIRST(&d->binds); fwb != NULL;
214 fwb = STAILQ_FIRST(&d->binds)) {
215 fw_bindremove(fc, fwb);
216 STAILQ_REMOVE_HEAD(&d->binds, chlist);
217 fw_xferlist_remove(&fwb->xferlist);
218 free(fwb, M_FW);
219 }
220 if (d->ir != NULL) {
221 struct fw_xferq *ir = d->ir;
222
223 if ((ir->flag & FWXFERQ_OPEN) == 0)
224 return (EINVAL);
225 if (ir->flag & FWXFERQ_RUNNING) {
226 ir->flag &= ~FWXFERQ_RUNNING;
227 fc->irx_disable(fc, ir->dmach);
228 }
229 /* free extbuf */
230 fwdev_freebuf(ir);
231 /* drain receiving buffer */
232 for (xfer = STAILQ_FIRST(&ir->q);
233 xfer != NULL; xfer = STAILQ_FIRST(&ir->q)) {
234 ir->queued--;
235 STAILQ_REMOVE_HEAD(&ir->q, link);
236
237 xfer->resp = 0;
238 fw_xfer_done(xfer);
239 }
240 ir->flag &= ~(FWXFERQ_OPEN | FWXFERQ_MODEMASK |
241 FWXFERQ_CHTAGMASK);
242 d->ir = NULL;
243
244 }
245 if (d->it != NULL) {
246 struct fw_xferq *it = d->it;
247
248 if ((it->flag & FWXFERQ_OPEN) == 0)
249 return (EINVAL);
250 if (it->flag & FWXFERQ_RUNNING) {
251 it->flag &= ~FWXFERQ_RUNNING;
252 fc->itx_disable(fc, it->dmach);
253 }
254 /* free extbuf */
255 fwdev_freebuf(it);
256 it->flag &= ~(FWXFERQ_OPEN |
257 FWXFERQ_MODEMASK | FWXFERQ_CHTAGMASK);
258 d->it = NULL;
259 }
260 free(dev->si_drv1, M_FW);
261 dev->si_drv1 = NULL;
262
263 return err;
264 }
265
266 static int
fw_read_async(struct fw_drv1 * d,struct uio * uio,int ioflag)267 fw_read_async(struct fw_drv1 *d, struct uio *uio, int ioflag)
268 {
269 int err = 0, s;
270 struct fw_xfer *xfer;
271 struct fw_bind *fwb;
272 struct fw_pkt *fp;
273 struct tcode_info *tinfo;
274
275 FW_GLOCK(d->fc);
276 while ((xfer = STAILQ_FIRST(&d->rq)) == NULL && err == 0)
277 err = msleep(&d->rq, FW_GMTX(d->fc), FWPRI, "fwra", 0);
278
279 if (err != 0) {
280 FW_GUNLOCK(d->fc);
281 return (err);
282 }
283
284 s = splfw();
285 STAILQ_REMOVE_HEAD(&d->rq, link);
286 FW_GUNLOCK(xfer->fc);
287 splx(s);
288 fp = &xfer->recv.hdr;
289 #if 0 /* for GASP ?? */
290 if (fc->irx_post != NULL)
291 fc->irx_post(fc, fp->mode.ld);
292 #endif
293 tinfo = &xfer->fc->tcode[fp->mode.hdr.tcode];
294 err = uiomove(fp, tinfo->hdr_len, uio);
295 if (err)
296 goto out;
297 err = uiomove(xfer->recv.payload, xfer->recv.pay_len, uio);
298
299 out:
300 /* recycle this xfer */
301 fwb = (struct fw_bind *)xfer->sc;
302 fw_xfer_unload(xfer);
303 xfer->recv.pay_len = PAGE_SIZE;
304 FW_GLOCK(xfer->fc);
305 STAILQ_INSERT_TAIL(&fwb->xferlist, xfer, link);
306 FW_GUNLOCK(xfer->fc);
307 return (err);
308 }
309
310 /*
311 * read request.
312 */
313 static int
fw_read(struct cdev * dev,struct uio * uio,int ioflag)314 fw_read(struct cdev *dev, struct uio *uio, int ioflag)
315 {
316 struct fw_drv1 *d;
317 struct fw_xferq *ir;
318 struct firewire_comm *fc;
319 int err = 0, s, slept = 0;
320 struct fw_pkt *fp;
321
322 if (DEV_FWMEM(dev))
323 return (physio(dev, uio, ioflag));
324
325 d = dev->si_drv1;
326 fc = d->fc;
327 ir = d->ir;
328
329 if (ir == NULL)
330 return (fw_read_async(d, uio, ioflag));
331
332 if (ir->buf == NULL)
333 return (EIO);
334
335 FW_GLOCK(fc);
336 readloop:
337 if (ir->stproc == NULL) {
338 /* iso bulkxfer */
339 ir->stproc = STAILQ_FIRST(&ir->stvalid);
340 if (ir->stproc != NULL) {
341 s = splfw();
342 STAILQ_REMOVE_HEAD(&ir->stvalid, link);
343 splx(s);
344 ir->queued = 0;
345 }
346 }
347 if (ir->stproc == NULL) {
348 /* no data available */
349 if (slept == 0) {
350 slept = 1;
351 ir->flag |= FWXFERQ_WAKEUP;
352 err = msleep(ir, FW_GMTX(fc), FWPRI, "fw_read", hz);
353 ir->flag &= ~FWXFERQ_WAKEUP;
354 if (err == 0)
355 goto readloop;
356 } else if (slept == 1)
357 err = EIO;
358 FW_GUNLOCK(fc);
359 return err;
360 } else if (ir->stproc != NULL) {
361 /* iso bulkxfer */
362 FW_GUNLOCK(fc);
363 fp = (struct fw_pkt *)fwdma_v_addr(ir->buf,
364 ir->stproc->poffset + ir->queued);
365 if (fc->irx_post != NULL)
366 fc->irx_post(fc, fp->mode.ld);
367 if (fp->mode.stream.len == 0) {
368 err = EIO;
369 return err;
370 }
371 err = uiomove((caddr_t)fp,
372 fp->mode.stream.len + sizeof(uint32_t), uio);
373 ir->queued++;
374 if (ir->queued >= ir->bnpacket) {
375 s = splfw();
376 STAILQ_INSERT_TAIL(&ir->stfree, ir->stproc, link);
377 splx(s);
378 fc->irx_enable(fc, ir->dmach);
379 ir->stproc = NULL;
380 }
381 if (uio->uio_resid >= ir->psize) {
382 slept = -1;
383 FW_GLOCK(fc);
384 goto readloop;
385 }
386 }
387 return err;
388 }
389
390 static int
fw_write_async(struct fw_drv1 * d,struct uio * uio,int ioflag)391 fw_write_async(struct fw_drv1 *d, struct uio *uio, int ioflag)
392 {
393 struct fw_xfer *xfer;
394 struct fw_pkt pkt;
395 struct tcode_info *tinfo;
396 int err;
397
398 bzero(&pkt, sizeof(struct fw_pkt));
399 if ((err = uiomove((caddr_t)&pkt, sizeof(uint32_t), uio)))
400 return (err);
401 tinfo = &d->fc->tcode[pkt.mode.hdr.tcode];
402 if ((err = uiomove((caddr_t)&pkt + sizeof(uint32_t),
403 tinfo->hdr_len - sizeof(uint32_t), uio)))
404 return (err);
405
406 if ((xfer = fw_xfer_alloc_buf(M_FWXFER, uio->uio_resid,
407 PAGE_SIZE/*XXX*/)) == NULL)
408 return (ENOMEM);
409
410 bcopy(&pkt, &xfer->send.hdr, sizeof(struct fw_pkt));
411 xfer->send.pay_len = uio->uio_resid;
412 if (uio->uio_resid > 0) {
413 if ((err = uiomove((caddr_t)&xfer->send.payload[0],
414 uio->uio_resid, uio)))
415 goto out;
416 }
417
418 xfer->fc = d->fc;
419 xfer->sc = NULL;
420 xfer->hand = fw_xferwake;
421 xfer->send.spd = 2 /* XXX */;
422
423 if ((err = fw_asyreq(xfer->fc, -1, xfer)))
424 goto out;
425
426 if ((err = fw_xferwait(xfer)))
427 goto out;
428
429 if (xfer->resp != 0) {
430 err = xfer->resp;
431 goto out;
432 }
433
434 if (xfer->flag & FWXF_RCVD) {
435 FW_GLOCK(xfer->fc);
436 STAILQ_INSERT_TAIL(&d->rq, xfer, link);
437 FW_GUNLOCK(xfer->fc);
438 return (0);
439 }
440
441 out:
442 fw_xfer_free(xfer);
443 return (err);
444 }
445
446 static int
fw_write(struct cdev * dev,struct uio * uio,int ioflag)447 fw_write(struct cdev *dev, struct uio *uio, int ioflag)
448 {
449 int err = 0;
450 int s, slept = 0;
451 struct fw_drv1 *d;
452 struct fw_pkt *fp;
453 struct firewire_comm *fc;
454 struct fw_xferq *it;
455
456 if (DEV_FWMEM(dev))
457 return (physio(dev, uio, ioflag));
458
459 d = dev->si_drv1;
460 fc = d->fc;
461 it = d->it;
462
463 if (it == NULL)
464 return (fw_write_async(d, uio, ioflag));
465
466 if (it->buf == NULL)
467 return (EIO);
468
469 FW_GLOCK(fc);
470 isoloop:
471 if (it->stproc == NULL) {
472 it->stproc = STAILQ_FIRST(&it->stfree);
473 if (it->stproc != NULL) {
474 s = splfw();
475 STAILQ_REMOVE_HEAD(&it->stfree, link);
476 splx(s);
477 it->queued = 0;
478 } else if (slept == 0) {
479 slept = 1;
480 #if 0 /* XXX to avoid lock recursion */
481 err = fc->itx_enable(fc, it->dmach);
482 if (err)
483 goto out;
484 #endif
485 err = msleep(it, FW_GMTX(fc), FWPRI, "fw_write", hz);
486 if (err)
487 goto out;
488 goto isoloop;
489 } else {
490 err = EIO;
491 goto out;
492 }
493 }
494 FW_GUNLOCK(fc);
495 fp = (struct fw_pkt *)fwdma_v_addr(it->buf,
496 it->stproc->poffset + it->queued);
497 err = uiomove((caddr_t)fp, sizeof(struct fw_isohdr), uio);
498 err = uiomove((caddr_t)fp->mode.stream.payload,
499 fp->mode.stream.len, uio);
500 it->queued++;
501 if (it->queued >= it->bnpacket) {
502 s = splfw();
503 STAILQ_INSERT_TAIL(&it->stvalid, it->stproc, link);
504 splx(s);
505 it->stproc = NULL;
506 err = fc->itx_enable(fc, it->dmach);
507 }
508 if (uio->uio_resid >= sizeof(struct fw_isohdr)) {
509 slept = 0;
510 FW_GLOCK(fc);
511 goto isoloop;
512 }
513 return err;
514
515 out:
516 FW_GUNLOCK(fc);
517 return err;
518 }
519
520 static void
fw_hand(struct fw_xfer * xfer)521 fw_hand(struct fw_xfer *xfer)
522 {
523 struct fw_bind *fwb;
524 struct fw_drv1 *d;
525
526 fwb = (struct fw_bind *)xfer->sc;
527 d = fwb->sc;
528 FW_GLOCK(xfer->fc);
529 STAILQ_INSERT_TAIL(&d->rq, xfer, link);
530 FW_GUNLOCK(xfer->fc);
531 wakeup(&d->rq);
532 }
533
534 /*
535 * ioctl support.
536 */
537 int
fw_ioctl(struct cdev * dev,u_long cmd,caddr_t data,int flag,fw_proc * td)538 fw_ioctl(struct cdev *dev, u_long cmd, caddr_t data, int flag, fw_proc *td)
539 {
540 struct firewire_comm *fc;
541 struct fw_drv1 *d;
542 int i, len, err = 0;
543 struct fw_device *fwdev;
544 struct fw_bind *fwb;
545 struct fw_xferq *ir, *it;
546 struct fw_xfer *xfer;
547 struct fw_pkt *fp;
548 struct fw_devinfo *devinfo;
549 void *ptr;
550
551 struct fw_devlstreq *fwdevlst = (struct fw_devlstreq *)data;
552 struct fw_asyreq *asyreq = (struct fw_asyreq *)data;
553 struct fw_isochreq *ichreq = (struct fw_isochreq *)data;
554 struct fw_isobufreq *ibufreq = (struct fw_isobufreq *)data;
555 struct fw_asybindreq *bindreq = (struct fw_asybindreq *)data;
556 struct fw_crom_buf *crom_buf = (struct fw_crom_buf *)data;
557
558 if (DEV_FWMEM(dev))
559 return fwmem_ioctl(dev, cmd, data, flag, td);
560
561 if (!data)
562 return (EINVAL);
563
564 d = dev->si_drv1;
565 fc = d->fc;
566 ir = d->ir;
567 it = d->it;
568
569 switch (cmd) {
570 case FW_STSTREAM:
571 if (it == NULL) {
572 i = fw_open_isodma(fc, /* tx */1);
573 if (i < 0) {
574 err = EBUSY;
575 break;
576 }
577 it = fc->it[i];
578 err = fwdev_allocbuf(fc, it, &d->bufreq.tx);
579 if (err) {
580 it->flag &= ~FWXFERQ_OPEN;
581 break;
582 }
583 }
584 it->flag &= ~0xff;
585 it->flag |= (0x3f & ichreq->ch);
586 it->flag |= ((0x3 & ichreq->tag) << 6);
587 d->it = it;
588 break;
589 case FW_GTSTREAM:
590 if (it != NULL) {
591 ichreq->ch = it->flag & 0x3f;
592 ichreq->tag = it->flag >> 2 & 0x3;
593 } else
594 err = EINVAL;
595 break;
596 case FW_SRSTREAM:
597 if (ir == NULL) {
598 i = fw_open_isodma(fc, /* tx */0);
599 if (i < 0) {
600 err = EBUSY;
601 break;
602 }
603 ir = fc->ir[i];
604 err = fwdev_allocbuf(fc, ir, &d->bufreq.rx);
605 if (err) {
606 ir->flag &= ~FWXFERQ_OPEN;
607 break;
608 }
609 }
610 ir->flag &= ~0xff;
611 ir->flag |= (0x3f & ichreq->ch);
612 ir->flag |= ((0x3 & ichreq->tag) << 6);
613 d->ir = ir;
614 err = fc->irx_enable(fc, ir->dmach);
615 break;
616 case FW_GRSTREAM:
617 if (d->ir != NULL) {
618 ichreq->ch = ir->flag & 0x3f;
619 ichreq->tag = ir->flag >> 2 & 0x3;
620 } else
621 err = EINVAL;
622 break;
623 case FW_SSTBUF:
624 bcopy(ibufreq, &d->bufreq, sizeof(d->bufreq));
625 break;
626 case FW_GSTBUF:
627 bzero(&ibufreq->rx, sizeof(ibufreq->rx));
628 if (ir != NULL) {
629 ibufreq->rx.nchunk = ir->bnchunk;
630 ibufreq->rx.npacket = ir->bnpacket;
631 ibufreq->rx.psize = ir->psize;
632 }
633 bzero(&ibufreq->tx, sizeof(ibufreq->tx));
634 if (it != NULL) {
635 ibufreq->tx.nchunk = it->bnchunk;
636 ibufreq->tx.npacket = it->bnpacket;
637 ibufreq->tx.psize = it->psize;
638 }
639 break;
640 case FW_ASYREQ:
641 {
642 struct tcode_info *tinfo;
643 int pay_len = 0;
644
645 fp = &asyreq->pkt;
646 tinfo = &fc->tcode[fp->mode.hdr.tcode];
647
648 if ((tinfo->flag & FWTI_BLOCK_ASY) != 0)
649 pay_len = MAX(0, asyreq->req.len - tinfo->hdr_len);
650
651 xfer = fw_xfer_alloc_buf(M_FWXFER, pay_len, PAGE_SIZE/*XXX*/);
652 if (xfer == NULL)
653 return (ENOMEM);
654
655 switch (asyreq->req.type) {
656 case FWASREQNODE:
657 break;
658 case FWASREQEUI:
659 fwdev = fw_noderesolve_eui64(fc,
660 &asyreq->req.dst.eui);
661 if (fwdev == NULL) {
662 device_printf(fc->bdev,
663 "cannot find node\n");
664 err = EINVAL;
665 goto out;
666 }
667 fp->mode.hdr.dst = FWLOCALBUS | fwdev->dst;
668 break;
669 case FWASRESTL:
670 /* XXX what's this? */
671 break;
672 case FWASREQSTREAM:
673 /* nothing to do */
674 break;
675 }
676
677 bcopy(fp, (void *)&xfer->send.hdr, tinfo->hdr_len);
678 if (pay_len > 0)
679 bcopy((char *)fp + tinfo->hdr_len,
680 xfer->send.payload, pay_len);
681 xfer->send.spd = asyreq->req.sped;
682 xfer->hand = fw_xferwake;
683
684 if ((err = fw_asyreq(fc, -1, xfer)) != 0)
685 goto out;
686 if ((err = fw_xferwait(xfer)) != 0)
687 goto out;
688 if (xfer->resp != 0) {
689 err = EIO;
690 goto out;
691 }
692 if ((tinfo->flag & FWTI_TLABEL) == 0)
693 goto out;
694
695 /* copy response */
696 tinfo = &fc->tcode[xfer->recv.hdr.mode.hdr.tcode];
697 if (xfer->recv.hdr.mode.hdr.tcode == FWTCODE_RRESB ||
698 xfer->recv.hdr.mode.hdr.tcode == FWTCODE_LRES) {
699 pay_len = xfer->recv.pay_len;
700 if (asyreq->req.len >= xfer->recv.pay_len + tinfo->hdr_len) {
701 asyreq->req.len = xfer->recv.pay_len +
702 tinfo->hdr_len;
703 } else {
704 err = EINVAL;
705 pay_len = 0;
706 }
707 } else {
708 pay_len = 0;
709 }
710 bcopy(&xfer->recv.hdr, fp, tinfo->hdr_len);
711 bcopy(xfer->recv.payload, (char *)fp + tinfo->hdr_len, pay_len);
712 out:
713 fw_xfer_free_buf(xfer);
714 break;
715 }
716 case FW_IBUSRST:
717 fc->ibr(fc);
718 break;
719 case FW_CBINDADDR:
720 fwb = fw_bindlookup(fc,
721 bindreq->start.hi, bindreq->start.lo);
722 if (fwb == NULL) {
723 err = EINVAL;
724 break;
725 }
726 fw_bindremove(fc, fwb);
727 STAILQ_REMOVE(&d->binds, fwb, fw_bind, chlist);
728 fw_xferlist_remove(&fwb->xferlist);
729 free(fwb, M_FW);
730 break;
731 case FW_SBINDADDR:
732 if (bindreq->len <= 0) {
733 err = EINVAL;
734 break;
735 }
736 if (bindreq->start.hi > 0xffff) {
737 err = EINVAL;
738 break;
739 }
740 fwb = malloc(sizeof(struct fw_bind), M_FW, M_WAITOK);
741 fwb->start = ((u_int64_t)bindreq->start.hi << 32) |
742 bindreq->start.lo;
743 fwb->end = fwb->start + bindreq->len;
744 fwb->sc = d;
745 STAILQ_INIT(&fwb->xferlist);
746 err = fw_bindadd(fc, fwb);
747 if (err == 0) {
748 fw_xferlist_add(&fwb->xferlist, M_FWXFER,
749 /* XXX */
750 PAGE_SIZE, PAGE_SIZE, 5,
751 fc, fwb, fw_hand);
752 STAILQ_INSERT_TAIL(&d->binds, fwb, chlist);
753 }
754 break;
755 case FW_GDEVLST:
756 i = len = 1;
757 /* myself */
758 devinfo = &fwdevlst->dev[0];
759 devinfo->dst = fc->nodeid;
760 devinfo->status = 0; /* XXX */
761 devinfo->eui.hi = fc->eui.hi;
762 devinfo->eui.lo = fc->eui.lo;
763 STAILQ_FOREACH(fwdev, &fc->devices, link) {
764 if (len < FW_MAX_DEVLST) {
765 devinfo = &fwdevlst->dev[len++];
766 devinfo->dst = fwdev->dst;
767 devinfo->status =
768 (fwdev->status == FWDEVINVAL) ? 0 : 1;
769 devinfo->eui.hi = fwdev->eui.hi;
770 devinfo->eui.lo = fwdev->eui.lo;
771 }
772 i++;
773 }
774 fwdevlst->n = i;
775 fwdevlst->info_len = len;
776 break;
777 case FW_GTPMAP:
778 bcopy(fc->topology_map, data,
779 (fc->topology_map->crc_len + 1) * 4);
780 break;
781 case FW_GCROM:
782 STAILQ_FOREACH(fwdev, &fc->devices, link)
783 if (FW_EUI64_EQUAL(fwdev->eui, crom_buf->eui))
784 break;
785 if (fwdev == NULL) {
786 if (!FW_EUI64_EQUAL(fc->eui, crom_buf->eui)) {
787 err = FWNODE_INVAL;
788 break;
789 }
790 /* myself */
791 ptr = malloc(CROMSIZE, M_FW, M_WAITOK);
792 len = CROMSIZE;
793 for (i = 0; i < CROMSIZE/4; i++)
794 ((uint32_t *)ptr)[i]
795 = ntohl(fc->config_rom[i]);
796 } else {
797 /* found */
798 ptr = (void *)&fwdev->csrrom[0];
799 if (fwdev->rommax < CSRROMOFF)
800 len = 0;
801 else
802 len = fwdev->rommax - CSRROMOFF + 4;
803 }
804 if (crom_buf->len < len)
805 len = crom_buf->len;
806 else
807 crom_buf->len = len;
808 err = copyout(ptr, crom_buf->ptr, len);
809 if (fwdev == NULL)
810 /* myself */
811 free(ptr, M_FW);
812 break;
813 default:
814 fc->ioctl(dev, cmd, data, flag, td);
815 break;
816 }
817 return err;
818 }
819 int
fw_poll(struct cdev * dev,int events,fw_proc * td)820 fw_poll(struct cdev *dev, int events, fw_proc *td)
821 {
822 struct fw_xferq *ir;
823 int revents;
824 int tmp;
825
826 if (DEV_FWMEM(dev))
827 return fwmem_poll(dev, events, td);
828
829 ir = ((struct fw_drv1 *)dev->si_drv1)->ir;
830 revents = 0;
831 tmp = POLLIN | POLLRDNORM;
832 if (events & tmp) {
833 if (STAILQ_FIRST(&ir->q) != NULL)
834 revents |= tmp;
835 else
836 selrecord(td, &ir->rsel);
837 }
838 tmp = POLLOUT | POLLWRNORM;
839 if (events & tmp) {
840 /* XXX should be fixed */
841 revents |= tmp;
842 }
843
844 return revents;
845 }
846
847 static int
fw_mmap(struct cdev * dev,vm_ooffset_t offset,vm_paddr_t * paddr,int nproto,vm_memattr_t * memattr)848 fw_mmap (struct cdev *dev, vm_ooffset_t offset, vm_paddr_t *paddr,
849 int nproto, vm_memattr_t *memattr)
850 {
851
852 if (DEV_FWMEM(dev))
853 return fwmem_mmap(dev, offset, paddr, nproto, memattr);
854
855 return EINVAL;
856 }
857
858 static void
fw_strategy(struct bio * bp)859 fw_strategy(struct bio *bp)
860 {
861 struct cdev *dev;
862
863 dev = bp->bio_dev;
864 if (DEV_FWMEM(dev)) {
865 fwmem_strategy(bp);
866 return;
867 }
868
869 bp->bio_error = EOPNOTSUPP;
870 bp->bio_flags |= BIO_ERROR;
871 bp->bio_resid = bp->bio_bcount;
872 biodone(bp);
873 }
874
875 int
fwdev_makedev(struct firewire_softc * sc)876 fwdev_makedev(struct firewire_softc *sc)
877 {
878 int err = 0;
879
880 struct cdev *d;
881 int unit;
882
883 unit = device_get_unit(sc->fc->bdev);
884 sc->dev = make_dev(&firewire_cdevsw, MAKEMINOR(0, unit, 0),
885 UID_ROOT, GID_OPERATOR, 0660, "fw%d.%d", unit, 0);
886 d = make_dev(&firewire_cdevsw, MAKEMINOR(FWMEM_FLAG, unit, 0),
887 UID_ROOT, GID_OPERATOR, 0660, "fwmem%d.%d", unit, 0);
888 dev_depends(sc->dev, d);
889 make_dev_alias(sc->dev, "fw%d", unit);
890 make_dev_alias(d, "fwmem%d", unit);
891
892 return (err);
893 }
894
895 int
fwdev_destroydev(struct firewire_softc * sc)896 fwdev_destroydev(struct firewire_softc *sc)
897 {
898 int err = 0;
899
900 destroy_dev(sc->dev);
901 return (err);
902 }
903
904 #define NDEVTYPE 2
905 void
fwdev_clone(void * arg,struct ucred * cred,char * name,int namelen,struct cdev ** dev)906 fwdev_clone(void *arg, struct ucred *cred, char *name, int namelen,
907 struct cdev **dev)
908 {
909 struct firewire_softc *sc;
910 char *devnames[NDEVTYPE] = {"fw", "fwmem"};
911 char *subp = NULL;
912 int devflag[NDEVTYPE] = {0, FWMEM_FLAG};
913 int i, unit = 0, sub = 0;
914
915 if (*dev != NULL)
916 return;
917
918 for (i = 0; i < NDEVTYPE; i++)
919 if (dev_stdclone(name, &subp, devnames[i], &unit) == 2)
920 goto found;
921 /* not match */
922 return;
923 found:
924
925 if (subp == NULL || *subp++ != '.')
926 return;
927
928 /* /dev/fwU.S */
929 while (isdigit(*subp)) {
930 sub *= 10;
931 sub += *subp++ - '0';
932 }
933 if (*subp != '\0')
934 return;
935
936 sc = devclass_get_softc(firewire_devclass, unit);
937 if (sc == NULL)
938 return;
939 *dev = make_dev_credf(MAKEDEV_REF, &firewire_cdevsw,
940 MAKEMINOR(devflag[i], unit, sub), cred, UID_ROOT, GID_OPERATOR,
941 0660, "%s%d.%d", devnames[i], unit, sub);
942 dev_depends(sc->dev, *dev);
943 return;
944 }
945