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: stable/10/sys/dev/firewire/fwdev.c 299230 2016-05-08 09:02:51Z kib $
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 #else
102 #define CDEV_MAJOR 127
103 fw_open, fw_close, fw_read, fw_write, fw_ioctl,
104 fw_poll, fw_mmap, fw_strategy, "fw", CDEV_MAJOR,
105 nodump, nopsize, D_MEM, -1
106 #endif
107 };
108
109 struct fw_drv1 {
110 struct firewire_comm *fc;
111 struct fw_xferq *ir;
112 struct fw_xferq *it;
113 struct fw_isobufreq bufreq;
114 STAILQ_HEAD(, fw_bind) binds;
115 STAILQ_HEAD(, fw_xfer) rq;
116 };
117
118 static int
fwdev_allocbuf(struct firewire_comm * fc,struct fw_xferq * q,struct fw_bufspec * b)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(uint32_t));
134 q->buf = fwdma_malloc_multiseg(fc, sizeof(uint32_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
fwdev_freebuf(struct fw_xferq * q)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
fw_open(struct cdev * dev,int flags,int fmt,fw_proc * td)183 fw_open (struct cdev *dev, int flags, int fmt, fw_proc *td)
184 {
185 int err = 0;
186 int unit = DEV2UNIT(dev);
187 struct fw_drv1 *d;
188 struct firewire_softc *sc;
189
190 if (DEV_FWMEM(dev))
191 return fwmem_open(dev, flags, fmt, td);
192
193 sc = devclass_get_softc(firewire_devclass, unit);
194 if (sc == NULL)
195 return (ENXIO);
196
197 FW_GLOCK(sc->fc);
198 if (dev->si_drv1 != NULL) {
199 FW_GUNLOCK(sc->fc);
200 return (EBUSY);
201 }
202 /* set dummy value for allocation */
203 dev->si_drv1 = (void *)-1;
204 FW_GUNLOCK(sc->fc);
205
206 dev->si_drv1 = malloc(sizeof(struct fw_drv1), M_FW, M_WAITOK | M_ZERO);
207 if (dev->si_drv1 == NULL)
208 return (ENOMEM);
209
210 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000
211 if ((dev->si_flags & SI_NAMED) == 0) {
212 int unit = DEV2UNIT(dev);
213 int sub = DEV2SUB(dev);
214
215 make_dev(&firewire_cdevsw, dev2unit(dev),
216 UID_ROOT, GID_OPERATOR, 0660,
217 "fw%d.%d", unit, sub);
218 }
219 #endif
220 d = (struct fw_drv1 *)dev->si_drv1;
221 d->fc = sc->fc;
222 STAILQ_INIT(&d->binds);
223 STAILQ_INIT(&d->rq);
224
225 return err;
226 }
227
228 static int
fw_close(struct cdev * dev,int flags,int fmt,fw_proc * td)229 fw_close (struct cdev *dev, int flags, int fmt, fw_proc *td)
230 {
231 struct firewire_comm *fc;
232 struct fw_drv1 *d;
233 struct fw_xfer *xfer;
234 struct fw_bind *fwb;
235 int err = 0;
236
237 if (DEV_FWMEM(dev))
238 return fwmem_close(dev, flags, fmt, td);
239
240 d = (struct fw_drv1 *)dev->si_drv1;
241 fc = d->fc;
242
243 /* remove binding */
244 for (fwb = STAILQ_FIRST(&d->binds); fwb != NULL;
245 fwb = STAILQ_FIRST(&d->binds)) {
246 fw_bindremove(fc, fwb);
247 STAILQ_REMOVE_HEAD(&d->binds, chlist);
248 fw_xferlist_remove(&fwb->xferlist);
249 free(fwb, M_FW);
250 }
251 if (d->ir != NULL) {
252 struct fw_xferq *ir = d->ir;
253
254 if ((ir->flag & FWXFERQ_OPEN) == 0)
255 return (EINVAL);
256 if (ir->flag & FWXFERQ_RUNNING) {
257 ir->flag &= ~FWXFERQ_RUNNING;
258 fc->irx_disable(fc, ir->dmach);
259 }
260 /* free extbuf */
261 fwdev_freebuf(ir);
262 /* drain receiving buffer */
263 for (xfer = STAILQ_FIRST(&ir->q);
264 xfer != NULL; xfer = STAILQ_FIRST(&ir->q)) {
265 ir->queued --;
266 STAILQ_REMOVE_HEAD(&ir->q, link);
267
268 xfer->resp = 0;
269 fw_xfer_done(xfer);
270 }
271 ir->flag &= ~(FWXFERQ_OPEN |
272 FWXFERQ_MODEMASK | FWXFERQ_CHTAGMASK);
273 d->ir = NULL;
274
275 }
276 if (d->it != NULL) {
277 struct fw_xferq *it = d->it;
278
279 if ((it->flag & FWXFERQ_OPEN) == 0)
280 return (EINVAL);
281 if (it->flag & FWXFERQ_RUNNING) {
282 it->flag &= ~FWXFERQ_RUNNING;
283 fc->itx_disable(fc, it->dmach);
284 }
285 /* free extbuf */
286 fwdev_freebuf(it);
287 it->flag &= ~(FWXFERQ_OPEN |
288 FWXFERQ_MODEMASK | FWXFERQ_CHTAGMASK);
289 d->it = NULL;
290 }
291 free(dev->si_drv1, M_FW);
292 dev->si_drv1 = NULL;
293
294 return err;
295 }
296
297 static int
fw_read_async(struct fw_drv1 * d,struct uio * uio,int ioflag)298 fw_read_async(struct fw_drv1 *d, struct uio *uio, int ioflag)
299 {
300 int err = 0, s;
301 struct fw_xfer *xfer;
302 struct fw_bind *fwb;
303 struct fw_pkt *fp;
304 struct tcode_info *tinfo;
305
306 FW_GLOCK(d->fc);
307 while ((xfer = STAILQ_FIRST(&d->rq)) == NULL && err == 0)
308 err = msleep(&d->rq, FW_GMTX(d->fc), FWPRI, "fwra", 0);
309
310 if (err != 0) {
311 FW_GUNLOCK(d->fc);
312 return (err);
313 }
314
315 s = splfw();
316 STAILQ_REMOVE_HEAD(&d->rq, link);
317 FW_GUNLOCK(xfer->fc);
318 splx(s);
319 fp = &xfer->recv.hdr;
320 #if 0 /* for GASP ?? */
321 if (fc->irx_post != NULL)
322 fc->irx_post(fc, fp->mode.ld);
323 #endif
324 tinfo = &xfer->fc->tcode[fp->mode.hdr.tcode];
325 err = uiomove((void *)fp, tinfo->hdr_len, uio);
326 if (err)
327 goto out;
328 err = uiomove((void *)xfer->recv.payload, xfer->recv.pay_len, uio);
329
330 out:
331 /* recycle this xfer */
332 fwb = (struct fw_bind *)xfer->sc;
333 fw_xfer_unload(xfer);
334 xfer->recv.pay_len = PAGE_SIZE;
335 FW_GLOCK(xfer->fc);
336 STAILQ_INSERT_TAIL(&fwb->xferlist, xfer, link);
337 FW_GUNLOCK(xfer->fc);
338 return (err);
339 }
340
341 /*
342 * read request.
343 */
344 static int
fw_read(struct cdev * dev,struct uio * uio,int ioflag)345 fw_read (struct cdev *dev, struct uio *uio, int ioflag)
346 {
347 struct fw_drv1 *d;
348 struct fw_xferq *ir;
349 struct firewire_comm *fc;
350 int err = 0, s, slept = 0;
351 struct fw_pkt *fp;
352
353 if (DEV_FWMEM(dev))
354 return (physio(dev, uio, ioflag));
355
356 d = (struct fw_drv1 *)dev->si_drv1;
357 fc = d->fc;
358 ir = d->ir;
359
360 if (ir == NULL)
361 return (fw_read_async(d, uio, ioflag));
362
363 if (ir->buf == NULL)
364 return (EIO);
365
366 FW_GLOCK(fc);
367 readloop:
368 if (ir->stproc == NULL) {
369 /* iso bulkxfer */
370 ir->stproc = STAILQ_FIRST(&ir->stvalid);
371 if (ir->stproc != NULL) {
372 s = splfw();
373 STAILQ_REMOVE_HEAD(&ir->stvalid, link);
374 splx(s);
375 ir->queued = 0;
376 }
377 }
378 if (ir->stproc == NULL) {
379 /* no data avaliable */
380 if (slept == 0) {
381 slept = 1;
382 ir->flag |= FWXFERQ_WAKEUP;
383 err = msleep(ir, FW_GMTX(fc), FWPRI, "fw_read", hz);
384 ir->flag &= ~FWXFERQ_WAKEUP;
385 if (err == 0)
386 goto readloop;
387 } else if (slept == 1)
388 err = EIO;
389 FW_GUNLOCK(fc);
390 return err;
391 } else if(ir->stproc != NULL) {
392 /* iso bulkxfer */
393 FW_GUNLOCK(fc);
394 fp = (struct fw_pkt *)fwdma_v_addr(ir->buf,
395 ir->stproc->poffset + ir->queued);
396 if(fc->irx_post != NULL)
397 fc->irx_post(fc, fp->mode.ld);
398 if(fp->mode.stream.len == 0){
399 err = EIO;
400 return err;
401 }
402 err = uiomove((caddr_t)fp,
403 fp->mode.stream.len + sizeof(uint32_t), uio);
404 ir->queued ++;
405 if(ir->queued >= ir->bnpacket){
406 s = splfw();
407 STAILQ_INSERT_TAIL(&ir->stfree, ir->stproc, link);
408 splx(s);
409 fc->irx_enable(fc, ir->dmach);
410 ir->stproc = NULL;
411 }
412 if (uio->uio_resid >= ir->psize) {
413 slept = -1;
414 FW_GLOCK(fc);
415 goto readloop;
416 }
417 }
418 return err;
419 }
420
421 static int
fw_write_async(struct fw_drv1 * d,struct uio * uio,int ioflag)422 fw_write_async(struct fw_drv1 *d, struct uio *uio, int ioflag)
423 {
424 struct fw_xfer *xfer;
425 struct fw_pkt pkt;
426 struct tcode_info *tinfo;
427 int err;
428
429 bzero(&pkt, sizeof(struct fw_pkt));
430 if ((err = uiomove((caddr_t)&pkt, sizeof(uint32_t), uio)))
431 return (err);
432 tinfo = &d->fc->tcode[pkt.mode.hdr.tcode];
433 if ((err = uiomove((caddr_t)&pkt + sizeof(uint32_t),
434 tinfo->hdr_len - sizeof(uint32_t), uio)))
435 return (err);
436
437 if ((xfer = fw_xfer_alloc_buf(M_FWXFER, uio->uio_resid,
438 PAGE_SIZE/*XXX*/)) == NULL)
439 return (ENOMEM);
440
441 bcopy(&pkt, &xfer->send.hdr, sizeof(struct fw_pkt));
442 xfer->send.pay_len = uio->uio_resid;
443 if (uio->uio_resid > 0) {
444 if ((err = uiomove((caddr_t)&xfer->send.payload[0],
445 uio->uio_resid, uio)))
446 goto out;
447 }
448
449 xfer->fc = d->fc;
450 xfer->sc = NULL;
451 xfer->hand = fw_xferwake;
452 xfer->send.spd = 2 /* XXX */;
453
454 if ((err = fw_asyreq(xfer->fc, -1, xfer)))
455 goto out;
456
457 if ((err = fw_xferwait(xfer)))
458 goto out;
459
460 if (xfer->resp != 0) {
461 err = xfer->resp;
462 goto out;
463 }
464
465 if (xfer->flag & FWXF_RCVD) {
466 FW_GLOCK(xfer->fc);
467 STAILQ_INSERT_TAIL(&d->rq, xfer, link);
468 FW_GUNLOCK(xfer->fc);
469 return (0);
470 }
471
472 out:
473 fw_xfer_free(xfer);
474 return (err);
475 }
476
477 static int
fw_write(struct cdev * dev,struct uio * uio,int ioflag)478 fw_write (struct cdev *dev, struct uio *uio, int ioflag)
479 {
480 int err = 0;
481 int s, slept = 0;
482 struct fw_drv1 *d;
483 struct fw_pkt *fp;
484 struct firewire_comm *fc;
485 struct fw_xferq *it;
486
487 if (DEV_FWMEM(dev))
488 return (physio(dev, uio, ioflag));
489
490 d = (struct fw_drv1 *)dev->si_drv1;
491 fc = d->fc;
492 it = d->it;
493
494 if (it == NULL)
495 return (fw_write_async(d, uio, ioflag));
496
497 if (it->buf == NULL)
498 return (EIO);
499
500 FW_GLOCK(fc);
501 isoloop:
502 if (it->stproc == NULL) {
503 it->stproc = STAILQ_FIRST(&it->stfree);
504 if (it->stproc != NULL) {
505 s = splfw();
506 STAILQ_REMOVE_HEAD(&it->stfree, link);
507 splx(s);
508 it->queued = 0;
509 } else if (slept == 0) {
510 slept = 1;
511 #if 0 /* XXX to avoid lock recursion */
512 err = fc->itx_enable(fc, it->dmach);
513 if (err)
514 goto out;
515 #endif
516 err = msleep(it, FW_GMTX(fc), FWPRI, "fw_write", hz);
517 if (err)
518 goto out;
519 goto isoloop;
520 } else {
521 err = EIO;
522 goto out;
523 }
524 }
525 FW_GUNLOCK(fc);
526 fp = (struct fw_pkt *)fwdma_v_addr(it->buf,
527 it->stproc->poffset + it->queued);
528 err = uiomove((caddr_t)fp, sizeof(struct fw_isohdr), uio);
529 err = uiomove((caddr_t)fp->mode.stream.payload,
530 fp->mode.stream.len, uio);
531 it->queued ++;
532 if (it->queued >= it->bnpacket) {
533 s = splfw();
534 STAILQ_INSERT_TAIL(&it->stvalid, it->stproc, link);
535 splx(s);
536 it->stproc = NULL;
537 err = fc->itx_enable(fc, it->dmach);
538 }
539 if (uio->uio_resid >= sizeof(struct fw_isohdr)) {
540 slept = 0;
541 FW_GLOCK(fc);
542 goto isoloop;
543 }
544 return err;
545
546 out:
547 FW_GUNLOCK(fc);
548 return err;
549 }
550
551 static void
fw_hand(struct fw_xfer * xfer)552 fw_hand(struct fw_xfer *xfer)
553 {
554 struct fw_bind *fwb;
555 struct fw_drv1 *d;
556
557 fwb = (struct fw_bind *)xfer->sc;
558 d = (struct fw_drv1 *)fwb->sc;
559 FW_GLOCK(xfer->fc);
560 STAILQ_INSERT_TAIL(&d->rq, xfer, link);
561 FW_GUNLOCK(xfer->fc);
562 wakeup(&d->rq);
563 }
564
565 /*
566 * ioctl support.
567 */
568 int
fw_ioctl(struct cdev * dev,u_long cmd,caddr_t data,int flag,fw_proc * td)569 fw_ioctl (struct cdev *dev, u_long cmd, caddr_t data, int flag, fw_proc *td)
570 {
571 struct firewire_comm *fc;
572 struct fw_drv1 *d;
573 int i, len, err = 0;
574 struct fw_device *fwdev;
575 struct fw_bind *fwb;
576 struct fw_xferq *ir, *it;
577 struct fw_xfer *xfer;
578 struct fw_pkt *fp;
579 struct fw_devinfo *devinfo;
580 void *ptr;
581
582 struct fw_devlstreq *fwdevlst = (struct fw_devlstreq *)data;
583 struct fw_asyreq *asyreq = (struct fw_asyreq *)data;
584 struct fw_isochreq *ichreq = (struct fw_isochreq *)data;
585 struct fw_isobufreq *ibufreq = (struct fw_isobufreq *)data;
586 struct fw_asybindreq *bindreq = (struct fw_asybindreq *)data;
587 struct fw_crom_buf *crom_buf = (struct fw_crom_buf *)data;
588
589 if (DEV_FWMEM(dev))
590 return fwmem_ioctl(dev, cmd, data, flag, td);
591
592 if (!data)
593 return(EINVAL);
594
595 d = (struct fw_drv1 *)dev->si_drv1;
596 fc = d->fc;
597 ir = d->ir;
598 it = d->it;
599
600 switch (cmd) {
601 case FW_STSTREAM:
602 if (it == NULL) {
603 i = fw_open_isodma(fc, /* tx */1);
604 if (i < 0) {
605 err = EBUSY;
606 break;
607 }
608 it = fc->it[i];
609 err = fwdev_allocbuf(fc, it, &d->bufreq.tx);
610 if (err) {
611 it->flag &= ~FWXFERQ_OPEN;
612 break;
613 }
614 }
615 it->flag &= ~0xff;
616 it->flag |= (0x3f & ichreq->ch);
617 it->flag |= ((0x3 & ichreq->tag) << 6);
618 d->it = it;
619 break;
620 case FW_GTSTREAM:
621 if (it != NULL) {
622 ichreq->ch = it->flag & 0x3f;
623 ichreq->tag = it->flag >> 2 & 0x3;
624 } else
625 err = EINVAL;
626 break;
627 case FW_SRSTREAM:
628 if (ir == NULL) {
629 i = fw_open_isodma(fc, /* tx */0);
630 if (i < 0) {
631 err = EBUSY;
632 break;
633 }
634 ir = fc->ir[i];
635 err = fwdev_allocbuf(fc, ir, &d->bufreq.rx);
636 if (err) {
637 ir->flag &= ~FWXFERQ_OPEN;
638 break;
639 }
640 }
641 ir->flag &= ~0xff;
642 ir->flag |= (0x3f & ichreq->ch);
643 ir->flag |= ((0x3 & ichreq->tag) << 6);
644 d->ir = ir;
645 err = fc->irx_enable(fc, ir->dmach);
646 break;
647 case FW_GRSTREAM:
648 if (d->ir != NULL) {
649 ichreq->ch = ir->flag & 0x3f;
650 ichreq->tag = ir->flag >> 2 & 0x3;
651 } else
652 err = EINVAL;
653 break;
654 case FW_SSTBUF:
655 bcopy(ibufreq, &d->bufreq, sizeof(d->bufreq));
656 break;
657 case FW_GSTBUF:
658 bzero(&ibufreq->rx, sizeof(ibufreq->rx));
659 if (ir != NULL) {
660 ibufreq->rx.nchunk = ir->bnchunk;
661 ibufreq->rx.npacket = ir->bnpacket;
662 ibufreq->rx.psize = ir->psize;
663 }
664 bzero(&ibufreq->tx, sizeof(ibufreq->tx));
665 if (it != NULL) {
666 ibufreq->tx.nchunk = it->bnchunk;
667 ibufreq->tx.npacket = it->bnpacket;
668 ibufreq->tx.psize = it->psize;
669 }
670 break;
671 case FW_ASYREQ:
672 {
673 struct tcode_info *tinfo;
674 int pay_len = 0;
675
676 fp = &asyreq->pkt;
677 tinfo = &fc->tcode[fp->mode.hdr.tcode];
678
679 if ((tinfo->flag & FWTI_BLOCK_ASY) != 0)
680 pay_len = MAX(0, asyreq->req.len - tinfo->hdr_len);
681
682 xfer = fw_xfer_alloc_buf(M_FWXFER, pay_len, PAGE_SIZE/*XXX*/);
683 if (xfer == NULL)
684 return (ENOMEM);
685
686 switch (asyreq->req.type) {
687 case FWASREQNODE:
688 break;
689 case FWASREQEUI:
690 fwdev = fw_noderesolve_eui64(fc,
691 &asyreq->req.dst.eui);
692 if (fwdev == NULL) {
693 device_printf(fc->bdev,
694 "cannot find node\n");
695 err = EINVAL;
696 goto out;
697 }
698 fp->mode.hdr.dst = FWLOCALBUS | fwdev->dst;
699 break;
700 case FWASRESTL:
701 /* XXX what's this? */
702 break;
703 case FWASREQSTREAM:
704 /* nothing to do */
705 break;
706 }
707
708 bcopy(fp, (void *)&xfer->send.hdr, tinfo->hdr_len);
709 if (pay_len > 0)
710 bcopy((char *)fp + tinfo->hdr_len,
711 (void *)xfer->send.payload, pay_len);
712 xfer->send.spd = asyreq->req.sped;
713 xfer->hand = fw_xferwake;
714
715 if ((err = fw_asyreq(fc, -1, xfer)) != 0)
716 goto out;
717 if ((err = fw_xferwait(xfer)) != 0)
718 goto out;
719 if (xfer->resp != 0) {
720 err = EIO;
721 goto out;
722 }
723 if ((tinfo->flag & FWTI_TLABEL) == 0)
724 goto out;
725
726 /* copy response */
727 tinfo = &fc->tcode[xfer->recv.hdr.mode.hdr.tcode];
728 if (xfer->recv.hdr.mode.hdr.tcode == FWTCODE_RRESB ||
729 xfer->recv.hdr.mode.hdr.tcode == FWTCODE_LRES) {
730 pay_len = xfer->recv.pay_len;
731 if (asyreq->req.len >= xfer->recv.pay_len + tinfo->hdr_len) {
732 asyreq->req.len = xfer->recv.pay_len +
733 tinfo->hdr_len;
734 } else {
735 err = EINVAL;
736 pay_len = 0;
737 }
738 } else {
739 pay_len = 0;
740 }
741 bcopy(&xfer->recv.hdr, fp, tinfo->hdr_len);
742 bcopy(xfer->recv.payload, (char *)fp + tinfo->hdr_len, pay_len);
743 out:
744 fw_xfer_free_buf(xfer);
745 break;
746 }
747 case FW_IBUSRST:
748 fc->ibr(fc);
749 break;
750 case FW_CBINDADDR:
751 fwb = fw_bindlookup(fc,
752 bindreq->start.hi, bindreq->start.lo);
753 if(fwb == NULL){
754 err = EINVAL;
755 break;
756 }
757 fw_bindremove(fc, fwb);
758 STAILQ_REMOVE(&d->binds, fwb, fw_bind, chlist);
759 fw_xferlist_remove(&fwb->xferlist);
760 free(fwb, M_FW);
761 break;
762 case FW_SBINDADDR:
763 if(bindreq->len <= 0 ){
764 err = EINVAL;
765 break;
766 }
767 if(bindreq->start.hi > 0xffff ){
768 err = EINVAL;
769 break;
770 }
771 fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind), M_FW, M_WAITOK);
772 if(fwb == NULL){
773 err = ENOMEM;
774 break;
775 }
776 fwb->start = ((u_int64_t)bindreq->start.hi << 32) |
777 bindreq->start.lo;
778 fwb->end = fwb->start + bindreq->len;
779 fwb->sc = (void *)d;
780 STAILQ_INIT(&fwb->xferlist);
781 err = fw_bindadd(fc, fwb);
782 if (err == 0) {
783 fw_xferlist_add(&fwb->xferlist, M_FWXFER,
784 /* XXX */
785 PAGE_SIZE, PAGE_SIZE, 5,
786 fc, (void *)fwb, fw_hand);
787 STAILQ_INSERT_TAIL(&d->binds, fwb, chlist);
788 }
789 break;
790 case FW_GDEVLST:
791 i = len = 1;
792 /* myself */
793 devinfo = &fwdevlst->dev[0];
794 devinfo->dst = fc->nodeid;
795 devinfo->status = 0; /* XXX */
796 devinfo->eui.hi = fc->eui.hi;
797 devinfo->eui.lo = fc->eui.lo;
798 STAILQ_FOREACH(fwdev, &fc->devices, link) {
799 if(len < FW_MAX_DEVLST){
800 devinfo = &fwdevlst->dev[len++];
801 devinfo->dst = fwdev->dst;
802 devinfo->status =
803 (fwdev->status == FWDEVINVAL)?0:1;
804 devinfo->eui.hi = fwdev->eui.hi;
805 devinfo->eui.lo = fwdev->eui.lo;
806 }
807 i++;
808 }
809 fwdevlst->n = i;
810 fwdevlst->info_len = len;
811 break;
812 case FW_GTPMAP:
813 bcopy(fc->topology_map, data,
814 (fc->topology_map->crc_len + 1) * 4);
815 break;
816 case FW_GCROM:
817 STAILQ_FOREACH(fwdev, &fc->devices, link)
818 if (FW_EUI64_EQUAL(fwdev->eui, crom_buf->eui))
819 break;
820 if (fwdev == NULL) {
821 if (!FW_EUI64_EQUAL(fc->eui, crom_buf->eui)) {
822 err = FWNODE_INVAL;
823 break;
824 }
825 /* myself */
826 ptr = malloc(CROMSIZE, M_FW, M_WAITOK);
827 len = CROMSIZE;
828 for (i = 0; i < CROMSIZE/4; i++)
829 ((uint32_t *)ptr)[i]
830 = ntohl(fc->config_rom[i]);
831 } else {
832 /* found */
833 ptr = (void *)&fwdev->csrrom[0];
834 if (fwdev->rommax < CSRROMOFF)
835 len = 0;
836 else
837 len = fwdev->rommax - CSRROMOFF + 4;
838 }
839 if (crom_buf->len < len)
840 len = crom_buf->len;
841 else
842 crom_buf->len = len;
843 err = copyout(ptr, crom_buf->ptr, len);
844 if (fwdev == NULL)
845 /* myself */
846 free(ptr, M_FW);
847 break;
848 default:
849 fc->ioctl (dev, cmd, data, flag, td);
850 break;
851 }
852 return err;
853 }
854 int
fw_poll(struct cdev * dev,int events,fw_proc * td)855 fw_poll(struct cdev *dev, int events, fw_proc *td)
856 {
857 struct fw_xferq *ir;
858 int revents;
859 int tmp;
860
861 if (DEV_FWMEM(dev))
862 return fwmem_poll(dev, events, td);
863
864 ir = ((struct fw_drv1 *)dev->si_drv1)->ir;
865 revents = 0;
866 tmp = POLLIN | POLLRDNORM;
867 if (events & tmp) {
868 if (STAILQ_FIRST(&ir->q) != NULL)
869 revents |= tmp;
870 else
871 selrecord(td, &ir->rsel);
872 }
873 tmp = POLLOUT | POLLWRNORM;
874 if (events & tmp) {
875 /* XXX should be fixed */
876 revents |= tmp;
877 }
878
879 return revents;
880 }
881
882 static int
883 #if defined(__DragonFly__) || __FreeBSD_version < 500102
fw_mmap(struct cdev * dev,vm_offset_t offset,int nproto)884 fw_mmap (struct cdev *dev, vm_offset_t offset, int nproto)
885 #else
886 fw_mmap (struct cdev *dev, vm_ooffset_t offset, vm_paddr_t *paddr,
887 int nproto, vm_memattr_t *memattr)
888 #endif
889 {
890
891 if (DEV_FWMEM(dev))
892 #if defined(__DragonFly__) || __FreeBSD_version < 500102
893 return fwmem_mmap(dev, offset, nproto);
894 #else
895 return fwmem_mmap(dev, offset, paddr, nproto, memattr);
896 #endif
897
898 return EINVAL;
899 }
900
901 static void
fw_strategy(struct bio * bp)902 fw_strategy(struct bio *bp)
903 {
904 struct cdev *dev;
905
906 dev = bp->bio_dev;
907 if (DEV_FWMEM(dev)) {
908 fwmem_strategy(bp);
909 return;
910 }
911
912 bp->bio_error = EOPNOTSUPP;
913 bp->bio_flags |= BIO_ERROR;
914 bp->bio_resid = bp->bio_bcount;
915 biodone(bp);
916 }
917
918 int
fwdev_makedev(struct firewire_softc * sc)919 fwdev_makedev(struct firewire_softc *sc)
920 {
921 int err = 0;
922
923 #if defined(__DragonFly__) || __FreeBSD_version < 500000
924 cdevsw_add(&firewire_cdevsw);
925 #else
926 struct cdev *d;
927 int unit;
928
929 unit = device_get_unit(sc->fc->bdev);
930 sc->dev = make_dev(&firewire_cdevsw, MAKEMINOR(0, unit, 0),
931 UID_ROOT, GID_OPERATOR, 0660,
932 "fw%d.%d", unit, 0);
933 d = make_dev(&firewire_cdevsw,
934 MAKEMINOR(FWMEM_FLAG, unit, 0),
935 UID_ROOT, GID_OPERATOR, 0660,
936 "fwmem%d.%d", unit, 0);
937 dev_depends(sc->dev, d);
938 make_dev_alias(sc->dev, "fw%d", unit);
939 make_dev_alias(d, "fwmem%d", unit);
940 #endif
941
942 return (err);
943 }
944
945 int
fwdev_destroydev(struct firewire_softc * sc)946 fwdev_destroydev(struct firewire_softc *sc)
947 {
948 int err = 0;
949
950 #if defined(__DragonFly__) || __FreeBSD_version < 500000
951 cdevsw_remove(&firewire_cdevsw);
952 #else
953 destroy_dev(sc->dev);
954 #endif
955 return (err);
956 }
957
958 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000
959 #define NDEVTYPE 2
960 void
fwdev_clone(void * arg,struct ucred * cred,char * name,int namelen,struct cdev ** dev)961 fwdev_clone(void *arg, struct ucred *cred, char *name, int namelen,
962 struct cdev **dev)
963 {
964 struct firewire_softc *sc;
965 char *devnames[NDEVTYPE] = {"fw", "fwmem"};
966 char *subp = NULL;
967 int devflag[NDEVTYPE] = {0, FWMEM_FLAG};
968 int i, unit = 0, sub = 0;
969
970 if (*dev != NULL)
971 return;
972
973 for (i = 0; i < NDEVTYPE; i++)
974 if (dev_stdclone(name, &subp, devnames[i], &unit) == 2)
975 goto found;
976 /* not match */
977 return;
978 found:
979
980 if (subp == NULL || *subp++ != '.')
981 return;
982
983 /* /dev/fwU.S */
984 while (isdigit(*subp)) {
985 sub *= 10;
986 sub += *subp++ - '0';
987 }
988 if (*subp != '\0')
989 return;
990
991 sc = devclass_get_softc(firewire_devclass, unit);
992 if (sc == NULL)
993 return;
994 *dev = make_dev_credf(MAKEDEV_REF, &firewire_cdevsw,
995 MAKEMINOR(devflag[i], unit, sub), cred, UID_ROOT, GID_OPERATOR,
996 0660, "%s%d.%d", devnames[i], unit, sub);
997 dev_depends(sc->dev, *dev);
998 return;
999 }
1000 #endif
1001