1 | /* $NetBSD: fwdev.c,v 1.31 2016/11/20 22:47:39 riastradh Exp $ */ |
2 | /*- |
3 | * Copyright (c) 2003 Hidetoshi Shimokawa |
4 | * Copyright (c) 1998-2002 Katsushi Kobayashi and Hidetoshi Shimokawa |
5 | * All rights reserved. |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without |
8 | * modification, are permitted provided that the following conditions |
9 | * are met: |
10 | * 1. Redistributions of source code must retain the above copyright |
11 | * notice, this list of conditions and the following disclaimer. |
12 | * 2. Redistributions in binary form must reproduce the above copyright |
13 | * notice, this list of conditions and the following disclaimer in the |
14 | * documentation and/or other materials provided with the distribution. |
15 | * 3. All advertising materials mentioning features or use of this software |
16 | * must display the acknowledgement as bellow: |
17 | * |
18 | * This product includes software developed by K. Kobayashi and H. Shimokawa |
19 | * |
20 | * 4. The name of the author may not be used to endorse or promote products |
21 | * derived from this software without specific prior written permission. |
22 | * |
23 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
24 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
25 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
26 | * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, |
27 | * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
28 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
29 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
30 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
31 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN |
32 | * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
33 | * POSSIBILITY OF SUCH DAMAGE. |
34 | * |
35 | * $FreeBSD: src/sys/dev/firewire/fwdev.c,v 1.52 2007/06/06 14:31:36 simokawa Exp $ |
36 | * |
37 | */ |
38 | |
39 | #include <sys/cdefs.h> |
40 | __KERNEL_RCSID(0, "$NetBSD: fwdev.c,v 1.31 2016/11/20 22:47:39 riastradh Exp $" ); |
41 | |
42 | #include <sys/param.h> |
43 | #include <sys/device.h> |
44 | #include <sys/errno.h> |
45 | #include <sys/buf.h> |
46 | #include <sys/bus.h> |
47 | #include <sys/conf.h> |
48 | #include <sys/kernel.h> |
49 | #include <sys/malloc.h> |
50 | #include <sys/mbuf.h> |
51 | #include <sys/poll.h> |
52 | #include <sys/proc.h> |
53 | #include <sys/select.h> |
54 | |
55 | #include <dev/ieee1394/firewire.h> |
56 | #include <dev/ieee1394/firewirereg.h> |
57 | #include <dev/ieee1394/fwdma.h> |
58 | #include <dev/ieee1394/fwmem.h> |
59 | #include <dev/ieee1394/iec68113.h> |
60 | |
61 | #include "ioconf.h" |
62 | |
63 | #define FWNODE_INVAL 0xffff |
64 | |
65 | dev_type_open(fw_open); |
66 | dev_type_close(fw_close); |
67 | dev_type_read(fw_read); |
68 | dev_type_write(fw_write); |
69 | dev_type_ioctl(fw_ioctl); |
70 | dev_type_poll(fw_poll); |
71 | dev_type_mmap(fw_mmap); |
72 | dev_type_strategy(fw_strategy); |
73 | |
74 | const struct bdevsw fw_bdevsw = { |
75 | .d_open = fw_open, |
76 | .d_close = fw_close, |
77 | .d_strategy = fw_strategy, |
78 | .d_ioctl = fw_ioctl, |
79 | .d_dump = nodump, |
80 | .d_psize = nosize, |
81 | .d_discard = nodiscard, |
82 | .d_flag = D_OTHER |
83 | }; |
84 | |
85 | const struct cdevsw fw_cdevsw = { |
86 | .d_open = fw_open, |
87 | .d_close = fw_close, |
88 | .d_read = fw_read, |
89 | .d_write = fw_write, |
90 | .d_ioctl = fw_ioctl, |
91 | .d_stop = nostop, |
92 | .d_tty = notty, |
93 | .d_poll = fw_poll, |
94 | .d_mmap = fw_mmap, |
95 | .d_kqfilter = nokqfilter, |
96 | .d_discard = nodiscard, |
97 | .d_flag = D_OTHER |
98 | }; |
99 | |
100 | struct fw_drv1 { |
101 | struct firewire_comm *fc; |
102 | struct fw_xferq *ir; |
103 | struct fw_xferq *it; |
104 | struct fw_isobufreq bufreq; |
105 | STAILQ_HEAD(, fw_bind) binds; |
106 | STAILQ_HEAD(, fw_xfer) rq; |
107 | kcondvar_t cv; |
108 | }; |
109 | |
110 | static int fwdev_allocbuf(struct firewire_comm *, struct fw_xferq *, |
111 | struct fw_bufspec *); |
112 | static int fwdev_freebuf(struct fw_xferq *); |
113 | static int fw_read_async(struct fw_drv1 *, struct uio *, int); |
114 | static int fw_write_async(struct fw_drv1 *, struct uio *, int); |
115 | static void fw_hand(struct fw_xfer *); |
116 | |
117 | |
118 | int |
119 | fw_open(dev_t dev, int flags, int fmt, struct lwp *td) |
120 | { |
121 | struct firewire_softc *sc; |
122 | struct fw_drv1 *d; |
123 | int err = 0; |
124 | |
125 | sc = device_lookup_private(&ieee1394if_cd, DEV2UNIT(dev)); |
126 | if (sc == NULL) |
127 | return ENXIO; |
128 | |
129 | if (DEV_FWMEM(dev)) |
130 | return fwmem_open(dev, flags, fmt, td); |
131 | |
132 | mutex_enter(&sc->fc->fc_mtx); |
133 | if (sc->si_drv1 != NULL) { |
134 | mutex_exit(&sc->fc->fc_mtx); |
135 | return EBUSY; |
136 | } |
137 | /* set dummy value for allocation */ |
138 | sc->si_drv1 = (void *)-1; |
139 | mutex_exit(&sc->fc->fc_mtx); |
140 | |
141 | sc->si_drv1 = malloc(sizeof(struct fw_drv1), M_FW, M_WAITOK | M_ZERO); |
142 | if (sc->si_drv1 == NULL) |
143 | return ENOMEM; |
144 | |
145 | d = (struct fw_drv1 *)sc->si_drv1; |
146 | d->fc = sc->fc; |
147 | STAILQ_INIT(&d->binds); |
148 | STAILQ_INIT(&d->rq); |
149 | cv_init(&d->cv, "fwra" ); |
150 | |
151 | return err; |
152 | } |
153 | |
154 | int |
155 | fw_close(dev_t dev, int flags, int fmt, struct lwp *td) |
156 | { |
157 | struct firewire_softc *sc; |
158 | struct firewire_comm *fc; |
159 | struct fw_drv1 *d; |
160 | struct fw_xfer *xfer; |
161 | struct fw_bind *fwb; |
162 | int err = 0; |
163 | |
164 | sc = device_lookup_private(&ieee1394if_cd, DEV2UNIT(dev)); |
165 | if (sc == NULL) |
166 | return ENXIO; |
167 | |
168 | if (DEV_FWMEM(dev)) |
169 | return fwmem_close(dev, flags, fmt, td); |
170 | |
171 | d = (struct fw_drv1 *)sc->si_drv1; |
172 | fc = d->fc; |
173 | |
174 | /* remove binding */ |
175 | for (fwb = STAILQ_FIRST(&d->binds); fwb != NULL; |
176 | fwb = STAILQ_FIRST(&d->binds)) { |
177 | fw_bindremove(fc, fwb); |
178 | STAILQ_REMOVE_HEAD(&d->binds, chlist); |
179 | fw_xferlist_remove(&fwb->xferlist); |
180 | free(fwb, M_FW); |
181 | } |
182 | if (d->ir != NULL) { |
183 | struct fw_xferq *ir = d->ir; |
184 | |
185 | if ((ir->flag & FWXFERQ_OPEN) == 0) |
186 | return EINVAL; |
187 | if (ir->flag & FWXFERQ_RUNNING) { |
188 | ir->flag &= ~FWXFERQ_RUNNING; |
189 | fc->irx_disable(fc, ir->dmach); |
190 | } |
191 | /* free extbuf */ |
192 | fwdev_freebuf(ir); |
193 | /* drain receiving buffer */ |
194 | for (xfer = STAILQ_FIRST(&ir->q); xfer != NULL; |
195 | xfer = STAILQ_FIRST(&ir->q)) { |
196 | ir->queued--; |
197 | STAILQ_REMOVE_HEAD(&ir->q, link); |
198 | |
199 | xfer->resp = 0; |
200 | fw_xfer_done(xfer); |
201 | } |
202 | ir->flag &= |
203 | ~(FWXFERQ_OPEN | FWXFERQ_MODEMASK | FWXFERQ_CHTAGMASK); |
204 | d->ir = NULL; |
205 | |
206 | } |
207 | if (d->it != NULL) { |
208 | struct fw_xferq *it = d->it; |
209 | |
210 | if ((it->flag & FWXFERQ_OPEN) == 0) |
211 | return EINVAL; |
212 | if (it->flag & FWXFERQ_RUNNING) { |
213 | it->flag &= ~FWXFERQ_RUNNING; |
214 | fc->itx_disable(fc, it->dmach); |
215 | } |
216 | /* free extbuf */ |
217 | fwdev_freebuf(it); |
218 | it->flag &= |
219 | ~(FWXFERQ_OPEN | FWXFERQ_MODEMASK | FWXFERQ_CHTAGMASK); |
220 | d->it = NULL; |
221 | } |
222 | cv_destroy(&d->cv); |
223 | free(sc->si_drv1, M_FW); |
224 | sc->si_drv1 = NULL; |
225 | |
226 | return err; |
227 | } |
228 | |
229 | int |
230 | fw_read(dev_t dev, struct uio *uio, int ioflag) |
231 | { |
232 | struct firewire_softc *sc; |
233 | struct firewire_comm *fc; |
234 | struct fw_drv1 *d; |
235 | struct fw_xferq *ir; |
236 | struct fw_pkt *fp; |
237 | int err = 0, slept = 0; |
238 | |
239 | sc = device_lookup_private(&ieee1394if_cd, DEV2UNIT(dev)); |
240 | if (sc == NULL) |
241 | return ENXIO; |
242 | |
243 | if (DEV_FWMEM(dev)) |
244 | return physio(fw_strategy, NULL, dev, ioflag, minphys, uio); |
245 | |
246 | d = (struct fw_drv1 *)sc->si_drv1; |
247 | fc = d->fc; |
248 | ir = d->ir; |
249 | |
250 | if (ir == NULL) |
251 | return fw_read_async(d, uio, ioflag); |
252 | |
253 | if (ir->buf == NULL) |
254 | return EIO; |
255 | |
256 | mutex_enter(&fc->fc_mtx); |
257 | readloop: |
258 | if (ir->stproc == NULL) { |
259 | /* iso bulkxfer */ |
260 | ir->stproc = STAILQ_FIRST(&ir->stvalid); |
261 | if (ir->stproc != NULL) { |
262 | STAILQ_REMOVE_HEAD(&ir->stvalid, link); |
263 | ir->queued = 0; |
264 | } |
265 | } |
266 | if (ir->stproc == NULL) { |
267 | /* no data avaliable */ |
268 | if (slept == 0) { |
269 | slept = 1; |
270 | ir->flag |= FWXFERQ_WAKEUP; |
271 | err = cv_timedwait_sig(&ir->cv, &fc->fc_mtx, hz); |
272 | ir->flag &= ~FWXFERQ_WAKEUP; |
273 | if (err == 0) |
274 | goto readloop; |
275 | } else if (slept == 1) |
276 | err = EIO; |
277 | mutex_exit(&fc->fc_mtx); |
278 | return err; |
279 | } else if (ir->stproc != NULL) { |
280 | /* iso bulkxfer */ |
281 | mutex_exit(&fc->fc_mtx); |
282 | fp = (struct fw_pkt *)fwdma_v_addr(ir->buf, |
283 | ir->stproc->poffset + ir->queued); |
284 | if (fc->irx_post != NULL) |
285 | fc->irx_post(fc, fp->mode.ld); |
286 | if (fp->mode.stream.len == 0) |
287 | return EIO; |
288 | err = uiomove((void *)fp, |
289 | fp->mode.stream.len + sizeof(uint32_t), uio); |
290 | ir->queued++; |
291 | if (ir->queued >= ir->bnpacket) { |
292 | STAILQ_INSERT_TAIL(&ir->stfree, ir->stproc, link); |
293 | fc->irx_enable(fc, ir->dmach); |
294 | ir->stproc = NULL; |
295 | } |
296 | if (uio->uio_resid >= ir->psize) { |
297 | slept = -1; |
298 | mutex_enter(&fc->fc_mtx); |
299 | goto readloop; |
300 | } |
301 | } else |
302 | mutex_exit(&fc->fc_mtx); |
303 | return err; |
304 | } |
305 | |
306 | int |
307 | fw_write(dev_t dev, struct uio *uio, int ioflag) |
308 | { |
309 | struct firewire_softc *sc; |
310 | struct firewire_comm *fc; |
311 | struct fw_drv1 *d; |
312 | struct fw_pkt *fp; |
313 | struct fw_xferq *it; |
314 | int slept = 0, err = 0; |
315 | |
316 | sc = device_lookup_private(&ieee1394if_cd, DEV2UNIT(dev)); |
317 | if (sc == NULL) |
318 | return ENXIO; |
319 | |
320 | if (DEV_FWMEM(dev)) |
321 | return physio(fw_strategy, NULL, dev, ioflag, minphys, uio); |
322 | |
323 | d = (struct fw_drv1 *)sc->si_drv1; |
324 | fc = d->fc; |
325 | it = d->it; |
326 | |
327 | if (it == NULL) |
328 | return fw_write_async(d, uio, ioflag); |
329 | |
330 | if (it->buf == NULL) |
331 | return EIO; |
332 | |
333 | mutex_enter(&fc->fc_mtx); |
334 | isoloop: |
335 | if (it->stproc == NULL) { |
336 | it->stproc = STAILQ_FIRST(&it->stfree); |
337 | if (it->stproc != NULL) { |
338 | STAILQ_REMOVE_HEAD(&it->stfree, link); |
339 | it->queued = 0; |
340 | } else if (slept == 0) { |
341 | slept = 1; |
342 | #if 0 /* XXX to avoid lock recursion */ |
343 | err = fc->itx_enable(fc, it->dmach); |
344 | if (err) |
345 | goto out; |
346 | #endif |
347 | err = cv_timedwait_sig(&it->cv, &fc->fc_mtx, hz); |
348 | if (err) |
349 | goto out; |
350 | goto isoloop; |
351 | } else { |
352 | err = EIO; |
353 | goto out; |
354 | } |
355 | } |
356 | mutex_exit(&fc->fc_mtx); |
357 | fp = (struct fw_pkt *)fwdma_v_addr(it->buf, |
358 | it->stproc->poffset + it->queued); |
359 | err = uiomove((void *)fp, sizeof(struct fw_isohdr), uio); |
360 | if (err != 0) |
361 | return err; |
362 | err = |
363 | uiomove((void *)fp->mode.stream.payload, fp->mode.stream.len, uio); |
364 | it->queued++; |
365 | if (it->queued >= it->bnpacket) { |
366 | STAILQ_INSERT_TAIL(&it->stvalid, it->stproc, link); |
367 | it->stproc = NULL; |
368 | err = fc->itx_enable(fc, it->dmach); |
369 | } |
370 | if (uio->uio_resid >= sizeof(struct fw_isohdr)) { |
371 | slept = 0; |
372 | mutex_enter(&fc->fc_mtx); |
373 | goto isoloop; |
374 | } |
375 | return err; |
376 | |
377 | out: |
378 | mutex_exit(&fc->fc_mtx); |
379 | return err; |
380 | } |
381 | |
382 | int |
383 | fw_ioctl(dev_t dev, u_long cmd, void *data, int flag, struct lwp *td) |
384 | { |
385 | struct firewire_softc *sc; |
386 | struct firewire_comm *fc; |
387 | struct fw_drv1 *d; |
388 | struct fw_device *fwdev; |
389 | struct fw_bind *fwb; |
390 | struct fw_xferq *ir, *it; |
391 | struct fw_xfer *xfer; |
392 | struct fw_pkt *fp; |
393 | struct fw_devinfo *devinfo; |
394 | struct fw_devlstreq *fwdevlst = (struct fw_devlstreq *)data; |
395 | struct fw_asyreq *asyreq = (struct fw_asyreq *)data; |
396 | struct fw_isochreq *ichreq = (struct fw_isochreq *)data; |
397 | struct fw_isobufreq *ibufreq = (struct fw_isobufreq *)data; |
398 | struct fw_asybindreq *bindreq = (struct fw_asybindreq *)data; |
399 | struct fw_crom_buf *crom_buf = (struct fw_crom_buf *)data; |
400 | int i, len, err = 0; |
401 | void *ptr; |
402 | |
403 | sc = device_lookup_private(&ieee1394if_cd, DEV2UNIT(dev)); |
404 | if (sc == NULL) |
405 | return ENXIO; |
406 | |
407 | if (DEV_FWMEM(dev)) |
408 | return fwmem_ioctl(dev, cmd, data, flag, td); |
409 | |
410 | if (!data) |
411 | return EINVAL; |
412 | |
413 | d = (struct fw_drv1 *)sc->si_drv1; |
414 | fc = d->fc; |
415 | ir = d->ir; |
416 | it = d->it; |
417 | |
418 | switch (cmd) { |
419 | case FW_STSTREAM: |
420 | if (it == NULL) { |
421 | i = fw_open_isodma(fc, /* tx */1); |
422 | if (i < 0) { |
423 | err = EBUSY; |
424 | break; |
425 | } |
426 | it = fc->it[i]; |
427 | err = fwdev_allocbuf(fc, it, &d->bufreq.tx); |
428 | if (err) { |
429 | it->flag &= ~FWXFERQ_OPEN; |
430 | break; |
431 | } |
432 | } |
433 | it->flag &= ~0xff; |
434 | it->flag |= (0x3f & ichreq->ch); |
435 | it->flag |= ((0x3 & ichreq->tag) << 6); |
436 | d->it = it; |
437 | break; |
438 | |
439 | case FW_GTSTREAM: |
440 | if (it != NULL) { |
441 | ichreq->ch = it->flag & 0x3f; |
442 | ichreq->tag = it->flag >> 2 & 0x3; |
443 | } else |
444 | err = EINVAL; |
445 | break; |
446 | |
447 | case FW_SRSTREAM: |
448 | if (ir == NULL) { |
449 | i = fw_open_isodma(fc, /* tx */0); |
450 | if (i < 0) { |
451 | err = EBUSY; |
452 | break; |
453 | } |
454 | ir = fc->ir[i]; |
455 | err = fwdev_allocbuf(fc, ir, &d->bufreq.rx); |
456 | if (err) { |
457 | ir->flag &= ~FWXFERQ_OPEN; |
458 | break; |
459 | } |
460 | } |
461 | ir->flag &= ~0xff; |
462 | ir->flag |= (0x3f & ichreq->ch); |
463 | ir->flag |= ((0x3 & ichreq->tag) << 6); |
464 | d->ir = ir; |
465 | err = fc->irx_enable(fc, ir->dmach); |
466 | break; |
467 | |
468 | case FW_GRSTREAM: |
469 | if (d->ir != NULL) { |
470 | ichreq->ch = ir->flag & 0x3f; |
471 | ichreq->tag = ir->flag >> 2 & 0x3; |
472 | } else |
473 | err = EINVAL; |
474 | break; |
475 | |
476 | case FW_SSTBUF: |
477 | memcpy(&d->bufreq, ibufreq, sizeof(d->bufreq)); |
478 | break; |
479 | |
480 | case FW_GSTBUF: |
481 | memset(&ibufreq->rx, 0, sizeof(ibufreq->rx)); |
482 | if (ir != NULL) { |
483 | ibufreq->rx.nchunk = ir->bnchunk; |
484 | ibufreq->rx.npacket = ir->bnpacket; |
485 | ibufreq->rx.psize = ir->psize; |
486 | } |
487 | memset(&ibufreq->tx, 0, sizeof(ibufreq->tx)); |
488 | if (it != NULL) { |
489 | ibufreq->tx.nchunk = it->bnchunk; |
490 | ibufreq->tx.npacket = it->bnpacket; |
491 | ibufreq->tx.psize = it->psize; |
492 | } |
493 | break; |
494 | |
495 | case FW_ASYREQ: |
496 | { |
497 | const struct tcode_info *tinfo; |
498 | int pay_len = 0; |
499 | |
500 | fp = &asyreq->pkt; |
501 | tinfo = &fc->tcode[fp->mode.hdr.tcode]; |
502 | |
503 | if ((tinfo->flag & FWTI_BLOCK_ASY) != 0) |
504 | pay_len = MAX(0, asyreq->req.len - tinfo->hdr_len); |
505 | |
506 | xfer = fw_xfer_alloc_buf(M_FW, pay_len, PAGE_SIZE/*XXX*/); |
507 | if (xfer == NULL) |
508 | return ENOMEM; |
509 | |
510 | switch (asyreq->req.type) { |
511 | case FWASREQNODE: |
512 | break; |
513 | |
514 | case FWASREQEUI: |
515 | fwdev = fw_noderesolve_eui64(fc, &asyreq->req.dst.eui); |
516 | if (fwdev == NULL) { |
517 | aprint_error_dev(fc->bdev, |
518 | "cannot find node\n" ); |
519 | err = EINVAL; |
520 | goto out; |
521 | } |
522 | fp->mode.hdr.dst = FWLOCALBUS | fwdev->dst; |
523 | break; |
524 | |
525 | case FWASRESTL: |
526 | /* XXX what's this? */ |
527 | break; |
528 | |
529 | case FWASREQSTREAM: |
530 | /* nothing to do */ |
531 | break; |
532 | } |
533 | |
534 | memcpy(&xfer->send.hdr, fp, tinfo->hdr_len); |
535 | if (pay_len > 0) |
536 | memcpy(xfer->send.payload, (char *)fp + tinfo->hdr_len, |
537 | pay_len); |
538 | xfer->send.spd = asyreq->req.sped; |
539 | xfer->hand = fw_xferwake; |
540 | |
541 | if ((err = fw_asyreq(fc, -1, xfer)) != 0) |
542 | goto out; |
543 | if ((err = fw_xferwait(xfer)) != 0) |
544 | goto out; |
545 | if (xfer->resp != 0) { |
546 | err = EIO; |
547 | goto out; |
548 | } |
549 | if ((tinfo->flag & FWTI_TLABEL) == 0) |
550 | goto out; |
551 | |
552 | /* copy response */ |
553 | tinfo = &fc->tcode[xfer->recv.hdr.mode.hdr.tcode]; |
554 | if (xfer->recv.hdr.mode.hdr.tcode == FWTCODE_RRESB || |
555 | xfer->recv.hdr.mode.hdr.tcode == FWTCODE_LRES) { |
556 | pay_len = xfer->recv.pay_len; |
557 | if (asyreq->req.len >= |
558 | xfer->recv.pay_len + tinfo->hdr_len) |
559 | asyreq->req.len = |
560 | xfer->recv.pay_len + tinfo->hdr_len; |
561 | else { |
562 | err = EINVAL; |
563 | pay_len = 0; |
564 | } |
565 | } else |
566 | pay_len = 0; |
567 | memcpy(fp, &xfer->recv.hdr, tinfo->hdr_len); |
568 | memcpy((char *)fp + tinfo->hdr_len, xfer->recv.payload, |
569 | pay_len); |
570 | out: |
571 | fw_xfer_free_buf(xfer); |
572 | break; |
573 | } |
574 | |
575 | case FW_IBUSRST: |
576 | fc->ibr(fc); |
577 | break; |
578 | |
579 | case FW_CBINDADDR: |
580 | fwb = fw_bindlookup(fc, bindreq->start.hi, bindreq->start.lo); |
581 | if (fwb == NULL) { |
582 | err = EINVAL; |
583 | break; |
584 | } |
585 | fw_bindremove(fc, fwb); |
586 | STAILQ_REMOVE(&d->binds, fwb, fw_bind, chlist); |
587 | fw_xferlist_remove(&fwb->xferlist); |
588 | free(fwb, M_FW); |
589 | break; |
590 | |
591 | case FW_SBINDADDR: |
592 | if (bindreq->len <= 0 ) { |
593 | err = EINVAL; |
594 | break; |
595 | } |
596 | if (bindreq->start.hi > 0xffff ) { |
597 | err = EINVAL; |
598 | break; |
599 | } |
600 | fwb = (struct fw_bind *)malloc(sizeof(struct fw_bind), |
601 | M_FW, M_WAITOK); |
602 | if (fwb == NULL) { |
603 | err = ENOMEM; |
604 | break; |
605 | } |
606 | fwb->start = ((u_int64_t)bindreq->start.hi << 32) | |
607 | bindreq->start.lo; |
608 | fwb->end = fwb->start + bindreq->len; |
609 | fwb->sc = (void *)d; |
610 | STAILQ_INIT(&fwb->xferlist); |
611 | err = fw_bindadd(fc, fwb); |
612 | if (err == 0) { |
613 | fw_xferlist_add(&fwb->xferlist, M_FW, |
614 | /* XXX */ |
615 | PAGE_SIZE, PAGE_SIZE, 5, fc, (void *)fwb, fw_hand); |
616 | STAILQ_INSERT_TAIL(&d->binds, fwb, chlist); |
617 | } |
618 | break; |
619 | |
620 | case FW_GDEVLST: |
621 | i = len = 1; |
622 | /* myself */ |
623 | devinfo = fwdevlst->dev; |
624 | devinfo->dst = fc->nodeid; |
625 | devinfo->status = 0; /* XXX */ |
626 | devinfo->eui.hi = fc->eui.hi; |
627 | devinfo->eui.lo = fc->eui.lo; |
628 | STAILQ_FOREACH(fwdev, &fc->devices, link) { |
629 | if (len < FW_MAX_DEVLST) { |
630 | devinfo = &fwdevlst->dev[len++]; |
631 | devinfo->dst = fwdev->dst; |
632 | devinfo->status = |
633 | (fwdev->status == FWDEVINVAL) ? 0 : 1; |
634 | devinfo->eui.hi = fwdev->eui.hi; |
635 | devinfo->eui.lo = fwdev->eui.lo; |
636 | } |
637 | i++; |
638 | } |
639 | fwdevlst->n = i; |
640 | fwdevlst->info_len = len; |
641 | break; |
642 | |
643 | case FW_GTPMAP: |
644 | memcpy(data, fc->topology_map, |
645 | (fc->topology_map->crc_len + 1) * 4); |
646 | break; |
647 | |
648 | case FW_GCROM: |
649 | STAILQ_FOREACH(fwdev, &fc->devices, link) |
650 | if (FW_EUI64_EQUAL(fwdev->eui, crom_buf->eui)) |
651 | break; |
652 | if (fwdev == NULL) { |
653 | if (!FW_EUI64_EQUAL(fc->eui, crom_buf->eui)) { |
654 | err = FWNODE_INVAL; |
655 | break; |
656 | } |
657 | /* myself */ |
658 | ptr = malloc(CROMSIZE, M_FW, M_WAITOK); |
659 | len = CROMSIZE; |
660 | for (i = 0; i < CROMSIZE/4; i++) |
661 | ((uint32_t *)ptr)[i] = ntohl(fc->config_rom[i]); |
662 | } else { |
663 | /* found */ |
664 | ptr = (void *)fwdev->csrrom; |
665 | if (fwdev->rommax < CSRROMOFF) |
666 | len = 0; |
667 | else |
668 | len = fwdev->rommax - CSRROMOFF + 4; |
669 | } |
670 | if (crom_buf->len < len) |
671 | len = crom_buf->len; |
672 | else |
673 | crom_buf->len = len; |
674 | err = copyout(ptr, crom_buf->ptr, len); |
675 | if (fwdev == NULL) |
676 | /* myself */ |
677 | free(ptr, M_FW); |
678 | break; |
679 | |
680 | default: |
681 | fc->ioctl(dev, cmd, data, flag, td); |
682 | break; |
683 | } |
684 | return err; |
685 | } |
686 | |
687 | int |
688 | fw_poll(dev_t dev, int events, struct lwp *td) |
689 | { |
690 | struct firewire_softc *sc; |
691 | struct fw_xferq *ir; |
692 | int revents, tmp; |
693 | |
694 | sc = device_lookup_private(&ieee1394if_cd, DEV2UNIT(dev)); |
695 | if (sc == NULL) |
696 | return ENXIO; |
697 | |
698 | ir = ((struct fw_drv1 *)sc->si_drv1)->ir; |
699 | revents = 0; |
700 | tmp = POLLIN | POLLRDNORM; |
701 | if (events & tmp) { |
702 | if (STAILQ_FIRST(&ir->q) != NULL) |
703 | revents |= tmp; |
704 | else |
705 | selrecord(td, &ir->rsel); |
706 | } |
707 | tmp = POLLOUT | POLLWRNORM; |
708 | if (events & tmp) |
709 | /* XXX should be fixed */ |
710 | revents |= tmp; |
711 | |
712 | return revents; |
713 | } |
714 | |
715 | paddr_t |
716 | fw_mmap(dev_t dev, off_t offset, int nproto) |
717 | { |
718 | struct firewire_softc *sc; |
719 | |
720 | sc = device_lookup_private(&ieee1394if_cd, DEV2UNIT(dev)); |
721 | if (sc == NULL) |
722 | return ENXIO; |
723 | |
724 | return EINVAL; |
725 | } |
726 | |
727 | void |
728 | fw_strategy(struct bio *bp) |
729 | { |
730 | struct firewire_softc *sc; |
731 | dev_t dev = bp->bio_dev; |
732 | |
733 | sc = device_lookup_private(&ieee1394if_cd, DEV2UNIT(dev)); |
734 | if (sc == NULL) |
735 | return; |
736 | |
737 | if (DEV_FWMEM(dev)) { |
738 | fwmem_strategy(bp); |
739 | return; |
740 | } |
741 | |
742 | bp->bio_error = EOPNOTSUPP; |
743 | bp->bio_resid = bp->bio_bcount; |
744 | biodone(bp); |
745 | } |
746 | |
747 | |
748 | static int |
749 | fwdev_allocbuf(struct firewire_comm *fc, struct fw_xferq *q, |
750 | struct fw_bufspec *b) |
751 | { |
752 | int i; |
753 | |
754 | if (q->flag & (FWXFERQ_RUNNING | FWXFERQ_EXTBUF)) |
755 | return EBUSY; |
756 | |
757 | q->bulkxfer = |
758 | (struct fw_bulkxfer *)malloc(sizeof(struct fw_bulkxfer) * b->nchunk, |
759 | M_FW, M_WAITOK); |
760 | if (q->bulkxfer == NULL) |
761 | return ENOMEM; |
762 | |
763 | b->psize = roundup2(b->psize, sizeof(uint32_t)); |
764 | q->buf = fwdma_malloc_multiseg(fc, sizeof(uint32_t), b->psize, |
765 | b->nchunk * b->npacket, BUS_DMA_WAITOK); |
766 | |
767 | if (q->buf == NULL) { |
768 | free(q->bulkxfer, M_FW); |
769 | q->bulkxfer = NULL; |
770 | return ENOMEM; |
771 | } |
772 | q->bnchunk = b->nchunk; |
773 | q->bnpacket = b->npacket; |
774 | q->psize = (b->psize + 3) & ~3; |
775 | q->queued = 0; |
776 | |
777 | STAILQ_INIT(&q->stvalid); |
778 | STAILQ_INIT(&q->stfree); |
779 | STAILQ_INIT(&q->stdma); |
780 | q->stproc = NULL; |
781 | |
782 | for (i = 0 ; i < q->bnchunk; i++) { |
783 | q->bulkxfer[i].poffset = i * q->bnpacket; |
784 | q->bulkxfer[i].mbuf = NULL; |
785 | STAILQ_INSERT_TAIL(&q->stfree, &q->bulkxfer[i], link); |
786 | } |
787 | |
788 | q->flag &= ~FWXFERQ_MODEMASK; |
789 | q->flag |= FWXFERQ_STREAM; |
790 | q->flag |= FWXFERQ_EXTBUF; |
791 | |
792 | return 0; |
793 | } |
794 | |
795 | static int |
796 | fwdev_freebuf(struct fw_xferq *q) |
797 | { |
798 | |
799 | if (q->flag & FWXFERQ_EXTBUF) { |
800 | if (q->buf != NULL) |
801 | fwdma_free_multiseg(q->buf); |
802 | q->buf = NULL; |
803 | free(q->bulkxfer, M_FW); |
804 | q->bulkxfer = NULL; |
805 | q->flag &= ~FWXFERQ_EXTBUF; |
806 | q->psize = 0; |
807 | q->maxq = FWMAXQUEUE; |
808 | } |
809 | return 0; |
810 | } |
811 | |
812 | static int |
813 | fw_read_async(struct fw_drv1 *d, struct uio *uio, int ioflag) |
814 | { |
815 | struct fw_xfer *xfer; |
816 | struct fw_bind *fwb; |
817 | struct fw_pkt *fp; |
818 | const struct tcode_info *tinfo; |
819 | int err = 0; |
820 | |
821 | mutex_enter(&d->fc->fc_mtx); |
822 | |
823 | for (;;) { |
824 | xfer = STAILQ_FIRST(&d->rq); |
825 | if (xfer == NULL && err == 0) { |
826 | err = cv_wait_sig(&d->cv, &d->fc->fc_mtx); |
827 | if (err) { |
828 | mutex_exit(&d->fc->fc_mtx); |
829 | return err; |
830 | } |
831 | continue; |
832 | } |
833 | break; |
834 | } |
835 | |
836 | STAILQ_REMOVE_HEAD(&d->rq, link); |
837 | mutex_exit(&d->fc->fc_mtx); |
838 | fp = &xfer->recv.hdr; |
839 | #if 0 /* for GASP ?? */ |
840 | if (fc->irx_post != NULL) |
841 | fc->irx_post(fc, fp->mode.ld); |
842 | #endif |
843 | tinfo = &xfer->fc->tcode[fp->mode.hdr.tcode]; |
844 | err = uiomove((void *)fp, tinfo->hdr_len, uio); |
845 | if (err) |
846 | goto out; |
847 | err = uiomove((void *)xfer->recv.payload, xfer->recv.pay_len, uio); |
848 | |
849 | out: |
850 | /* recycle this xfer */ |
851 | fwb = (struct fw_bind *)xfer->sc; |
852 | fw_xfer_unload(xfer); |
853 | xfer->recv.pay_len = PAGE_SIZE; |
854 | mutex_enter(&d->fc->fc_mtx); |
855 | STAILQ_INSERT_TAIL(&fwb->xferlist, xfer, link); |
856 | mutex_exit(&d->fc->fc_mtx); |
857 | return err; |
858 | } |
859 | |
860 | static int |
861 | fw_write_async(struct fw_drv1 *d, struct uio *uio, int ioflag) |
862 | { |
863 | struct fw_xfer *xfer; |
864 | struct fw_pkt pkt; |
865 | const struct tcode_info *tinfo; |
866 | int err; |
867 | |
868 | memset(&pkt, 0, sizeof(struct fw_pkt)); |
869 | if ((err = uiomove((void *)&pkt, sizeof(uint32_t), uio))) |
870 | return err; |
871 | tinfo = &d->fc->tcode[pkt.mode.hdr.tcode]; |
872 | if ((err = uiomove((char *)&pkt + sizeof(uint32_t), |
873 | tinfo->hdr_len - sizeof(uint32_t), uio))) |
874 | return err; |
875 | |
876 | if ((xfer = fw_xfer_alloc_buf(M_FW, uio->uio_resid, |
877 | PAGE_SIZE/*XXX*/)) == NULL) |
878 | return ENOMEM; |
879 | |
880 | memcpy(&xfer->send.hdr, &pkt, sizeof(struct fw_pkt)); |
881 | xfer->send.pay_len = uio->uio_resid; |
882 | if (uio->uio_resid > 0) { |
883 | if ((err = |
884 | uiomove((void *)xfer->send.payload, uio->uio_resid, uio))) |
885 | goto out; |
886 | } |
887 | |
888 | xfer->fc = d->fc; |
889 | xfer->sc = NULL; |
890 | xfer->hand = fw_xferwake; |
891 | xfer->send.spd = 2 /* XXX */; |
892 | |
893 | if ((err = fw_asyreq(xfer->fc, -1, xfer))) |
894 | goto out; |
895 | |
896 | if ((err = fw_xferwait(xfer))) |
897 | goto out; |
898 | |
899 | if (xfer->resp != 0) { |
900 | err = xfer->resp; |
901 | goto out; |
902 | } |
903 | |
904 | if (xfer->flag == FWXF_RCVD) { |
905 | mutex_enter(&xfer->fc->fc_mtx); |
906 | STAILQ_INSERT_TAIL(&d->rq, xfer, link); |
907 | mutex_exit(&xfer->fc->fc_mtx); |
908 | return 0; |
909 | } |
910 | |
911 | out: |
912 | fw_xfer_free(xfer); |
913 | return err; |
914 | } |
915 | |
916 | static void |
917 | fw_hand(struct fw_xfer *xfer) |
918 | { |
919 | struct fw_bind *fwb; |
920 | struct fw_drv1 *d; |
921 | |
922 | fwb = (struct fw_bind *)xfer->sc; |
923 | d = (struct fw_drv1 *)fwb->sc; |
924 | mutex_enter(&xfer->fc->fc_mtx); |
925 | STAILQ_INSERT_TAIL(&d->rq, xfer, link); |
926 | cv_broadcast(&d->cv); |
927 | mutex_exit(&xfer->fc->fc_mtx); |
928 | } |
929 | |