Line data Source code
1 : /* $OpenBSD: ucom.c,v 1.67 2018/02/19 08:59:52 mpi Exp $ */
2 : /* $NetBSD: ucom.c,v 1.49 2003/01/01 00:10:25 thorpej Exp $ */
3 :
4 : /*
5 : * Copyright (c) 1998, 2000 The NetBSD Foundation, Inc.
6 : * All rights reserved.
7 : *
8 : * This code is derived from software contributed to The NetBSD Foundation
9 : * by Lennart Augustsson (lennart@augustsson.net) at
10 : * Carlstedt Research & Technology.
11 : *
12 : * Redistribution and use in source and binary forms, with or without
13 : * modification, are permitted provided that the following conditions
14 : * are met:
15 : * 1. Redistributions of source code must retain the above copyright
16 : * notice, this list of conditions and the following disclaimer.
17 : * 2. Redistributions in binary form must reproduce the above copyright
18 : * notice, this list of conditions and the following disclaimer in the
19 : * documentation and/or other materials provided with the distribution.
20 : *
21 : * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
22 : * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
23 : * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
24 : * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
25 : * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26 : * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27 : * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28 : * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29 : * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30 : * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31 : * POSSIBILITY OF SUCH DAMAGE.
32 : */
33 : /*
34 : * This code is very heavily based on the 16550 driver, com.c.
35 : */
36 :
37 : #include <sys/param.h>
38 : #include <sys/systm.h>
39 : #include <sys/kernel.h>
40 : #include <sys/rwlock.h>
41 : #include <sys/ioctl.h>
42 : #include <sys/conf.h>
43 : #include <sys/tty.h>
44 : #include <sys/fcntl.h>
45 : #include <sys/selinfo.h>
46 : #include <sys/vnode.h>
47 : #include <sys/device.h>
48 : #include <sys/poll.h>
49 :
50 : #include <dev/usb/usb.h>
51 :
52 : #include <dev/usb/usbdi.h>
53 : #include <dev/usb/usbdi_util.h>
54 : #include <dev/usb/uhidev.h>
55 : #include <dev/usb/usbdevs.h>
56 :
57 : #include <dev/usb/ucomvar.h>
58 :
59 : #include "ucom.h"
60 :
61 : #if NUCOM > 0
62 :
63 : #ifdef UCOM_DEBUG
64 : #define DPRINTFN(n, x) do { if (ucomdebug > (n)) printf x; } while (0)
65 : int ucomdebug = 0;
66 : #else
67 : #define DPRINTFN(n, x)
68 : #endif
69 : #define DPRINTF(x) DPRINTFN(0, x)
70 :
71 : #define UCOMUNIT_MASK 0x7f
72 : #define UCOMCUA_MASK 0x80
73 :
74 : #define LINESW(tp, func) (linesw[(tp)->t_line].func)
75 :
76 : #define UCOMUNIT(x) (minor(x) & UCOMUNIT_MASK)
77 : #define UCOMCUA(x) (minor(x) & UCOMCUA_MASK)
78 :
79 : struct ucom_softc {
80 : struct device sc_dev; /* base device */
81 :
82 : struct usbd_device *sc_uparent; /* USB device */
83 : struct uhidev_softc *sc_uhidev; /* hid device (if deeper) */
84 :
85 : struct usbd_interface *sc_iface; /* data interface */
86 :
87 : int sc_bulkin_no; /* bulk in endpoint address */
88 : struct usbd_pipe *sc_bulkin_pipe;/* bulk in pipe */
89 : struct usbd_xfer *sc_ixfer; /* read request */
90 : u_char *sc_ibuf; /* read buffer */
91 : u_int sc_ibufsize; /* read buffer size */
92 : u_int sc_ibufsizepad; /* read buffer size padded */
93 :
94 : int sc_bulkout_no; /* bulk out endpoint address */
95 : struct usbd_pipe *sc_bulkout_pipe;/* bulk out pipe */
96 : struct usbd_xfer *sc_oxfer; /* write request */
97 : u_char *sc_obuf; /* write buffer */
98 : u_int sc_obufsize; /* write buffer size */
99 : u_int sc_opkthdrlen; /* header length of
100 : * output packet */
101 :
102 : struct usbd_pipe *sc_ipipe; /* hid interrupt input pipe */
103 : struct usbd_pipe *sc_opipe; /* hid interrupt pipe */
104 :
105 : struct ucom_methods *sc_methods;
106 : void *sc_parent;
107 : int sc_portno;
108 :
109 : struct tty *sc_tty; /* our tty */
110 : u_char sc_lsr;
111 : u_char sc_msr;
112 : u_char sc_mcr;
113 : u_char sc_tx_stopped;
114 : int sc_swflags;
115 :
116 : u_char sc_cua;
117 :
118 : struct rwlock sc_lock; /* lock during open */
119 : int sc_open;
120 : int sc_refcnt;
121 : };
122 :
123 : void ucom_cleanup(struct ucom_softc *);
124 : void ucom_hwiflow(struct ucom_softc *);
125 : int ucomparam(struct tty *, struct termios *);
126 : void ucomstart(struct tty *);
127 : void ucom_shutdown(struct ucom_softc *);
128 : int ucom_do_open(dev_t, int, int, struct proc *);
129 : int ucom_do_ioctl(struct ucom_softc *, u_long, caddr_t, int, struct proc *);
130 : int ucom_do_close(struct ucom_softc *, int, int , struct proc *);
131 : void ucom_dtr(struct ucom_softc *, int);
132 : void ucom_rts(struct ucom_softc *, int);
133 : void ucom_break(struct ucom_softc *, int);
134 : usbd_status ucomstartread(struct ucom_softc *);
135 : void ucomreadcb(struct usbd_xfer *, void *, usbd_status);
136 : void ucomwritecb(struct usbd_xfer *, void *, usbd_status);
137 : void tiocm_to_ucom(struct ucom_softc *, u_long, int);
138 : int ucom_to_tiocm(struct ucom_softc *);
139 : void ucom_lock(struct ucom_softc *);
140 : void ucom_unlock(struct ucom_softc *);
141 :
142 : int ucom_match(struct device *, void *, void *);
143 : void ucom_attach(struct device *, struct device *, void *);
144 : int ucom_detach(struct device *, int);
145 :
146 : struct cfdriver ucom_cd = {
147 : NULL, "ucom", DV_TTY
148 : };
149 :
150 : const struct cfattach ucom_ca = {
151 : sizeof(struct ucom_softc),
152 : ucom_match,
153 : ucom_attach,
154 : ucom_detach,
155 : };
156 :
157 : void
158 0 : ucom_lock(struct ucom_softc *sc)
159 : {
160 0 : rw_enter_write(&sc->sc_lock);
161 0 : }
162 :
163 : void
164 0 : ucom_unlock(struct ucom_softc *sc)
165 : {
166 0 : rw_exit_write(&sc->sc_lock);
167 0 : }
168 :
169 : int
170 0 : ucom_match(struct device *parent, void *match, void *aux)
171 : {
172 0 : return (1);
173 : }
174 :
175 : void
176 0 : ucom_attach(struct device *parent, struct device *self, void *aux)
177 : {
178 0 : struct ucom_softc *sc = (struct ucom_softc *)self;
179 0 : struct ucom_attach_args *uca = aux;
180 : struct tty *tp;
181 :
182 0 : if (uca->info != NULL)
183 0 : printf(", %s", uca->info);
184 0 : printf("\n");
185 :
186 0 : sc->sc_uparent = uca->device;
187 0 : sc->sc_iface = uca->iface;
188 0 : sc->sc_bulkout_no = uca->bulkout;
189 0 : sc->sc_bulkin_no = uca->bulkin;
190 0 : sc->sc_uhidev = uca->uhidev;
191 0 : sc->sc_ibufsize = uca->ibufsize;
192 0 : sc->sc_ibufsizepad = uca->ibufsizepad;
193 0 : sc->sc_obufsize = uca->obufsize;
194 0 : sc->sc_opkthdrlen = uca->opkthdrlen;
195 0 : sc->sc_methods = uca->methods;
196 0 : sc->sc_parent = uca->arg;
197 0 : sc->sc_portno = uca->portno;
198 :
199 0 : tp = ttymalloc(1000000);
200 0 : tp->t_oproc = ucomstart;
201 0 : tp->t_param = ucomparam;
202 0 : sc->sc_tty = tp;
203 0 : sc->sc_cua = 0;
204 :
205 0 : rw_init(&sc->sc_lock, "ucomlk");
206 0 : }
207 :
208 : int
209 0 : ucom_detach(struct device *self, int flags)
210 : {
211 0 : struct ucom_softc *sc = (struct ucom_softc *)self;
212 0 : struct tty *tp = sc->sc_tty;
213 : int maj, mn;
214 : int s;
215 :
216 : DPRINTF(("ucom_detach: sc=%p flags=%d tp=%p, pipe=%d,%d\n",
217 : sc, flags, tp, sc->sc_bulkin_no, sc->sc_bulkout_no));
218 :
219 0 : if (sc->sc_bulkin_pipe != NULL) {
220 0 : usbd_abort_pipe(sc->sc_bulkin_pipe);
221 0 : usbd_close_pipe(sc->sc_bulkin_pipe);
222 0 : sc->sc_bulkin_pipe = NULL;
223 0 : }
224 0 : if (sc->sc_bulkout_pipe != NULL) {
225 0 : usbd_abort_pipe(sc->sc_bulkout_pipe);
226 0 : usbd_close_pipe(sc->sc_bulkout_pipe);
227 0 : sc->sc_bulkout_pipe = NULL;
228 0 : }
229 0 : if (sc->sc_ixfer != NULL) {
230 0 : if (sc->sc_bulkin_no != -1) {
231 0 : usbd_free_buffer(sc->sc_ixfer);
232 0 : sc->sc_ibuf = NULL;
233 0 : usbd_free_xfer(sc->sc_ixfer);
234 0 : }
235 0 : sc->sc_ixfer = NULL;
236 0 : }
237 0 : if (sc->sc_oxfer != NULL) {
238 0 : usbd_free_buffer(sc->sc_oxfer);
239 0 : sc->sc_obuf = NULL;
240 0 : if (sc->sc_bulkin_no != -1)
241 0 : usbd_free_xfer(sc->sc_oxfer);
242 0 : sc->sc_oxfer = NULL;
243 0 : }
244 :
245 0 : s = splusb();
246 0 : if (--sc->sc_refcnt >= 0) {
247 : /* Wake up anyone waiting */
248 0 : if (tp != NULL) {
249 0 : CLR(tp->t_state, TS_CARR_ON);
250 0 : CLR(tp->t_cflag, CLOCAL | MDMBUF);
251 0 : ttyflush(tp, FREAD|FWRITE);
252 0 : }
253 0 : usb_detach_wait(&sc->sc_dev);
254 0 : }
255 0 : splx(s);
256 :
257 : /* locate the major number */
258 0 : for (maj = 0; maj < nchrdev; maj++)
259 0 : if (cdevsw[maj].d_open == ucomopen)
260 : break;
261 :
262 : /* Nuke the vnodes for any open instances. */
263 0 : mn = self->dv_unit;
264 : DPRINTF(("ucom_detach: maj=%d mn=%d\n", maj, mn));
265 0 : vdevgone(maj, mn, mn, VCHR);
266 0 : vdevgone(maj, mn | UCOMCUA_MASK, mn | UCOMCUA_MASK, VCHR);
267 :
268 : /* Detach and free the tty. */
269 0 : if (tp != NULL) {
270 0 : (*LINESW(tp, l_close))(tp, FNONBLOCK, curproc);
271 0 : s = spltty();
272 0 : CLR(tp->t_state, TS_BUSY | TS_FLUSH);
273 0 : ttyclose(tp);
274 0 : splx(s);
275 0 : ttyfree(tp);
276 0 : sc->sc_tty = NULL;
277 0 : }
278 :
279 0 : return (0);
280 : }
281 :
282 : void
283 0 : ucom_shutdown(struct ucom_softc *sc)
284 : {
285 0 : struct tty *tp = sc->sc_tty;
286 :
287 : DPRINTF(("ucom_shutdown\n"));
288 : /*
289 : * Hang up if necessary. Wait a bit, so the other side has time to
290 : * notice even if we immediately open the port again.
291 : */
292 0 : if (ISSET(tp->t_cflag, HUPCL)) {
293 0 : ucom_dtr(sc, 0);
294 0 : (void)tsleep(sc, TTIPRI, ttclos, hz);
295 0 : }
296 0 : }
297 :
298 : int
299 0 : ucomopen(dev_t dev, int flag, int mode, struct proc *p)
300 : {
301 0 : int unit = UCOMUNIT(dev);
302 : struct ucom_softc *sc;
303 : int error;
304 :
305 0 : if (unit >= ucom_cd.cd_ndevs)
306 0 : return (ENXIO);
307 0 : sc = ucom_cd.cd_devs[unit];
308 0 : if (sc == NULL)
309 0 : return (ENXIO);
310 :
311 0 : if (usbd_is_dying(sc->sc_uparent))
312 0 : return (EIO);
313 :
314 0 : if (ISSET(sc->sc_dev.dv_flags, DVF_ACTIVE) == 0)
315 0 : return (ENXIO);
316 :
317 0 : sc->sc_refcnt++;
318 0 : error = ucom_do_open(dev, flag, mode, p);
319 0 : if (--sc->sc_refcnt < 0)
320 0 : usb_detach_wakeup(&sc->sc_dev);
321 :
322 0 : return (error);
323 0 : }
324 :
325 : int
326 0 : ucom_do_open(dev_t dev, int flag, int mode, struct proc *p)
327 : {
328 0 : struct ucom_softc *sc = ucom_cd.cd_devs[UCOMUNIT(dev)];
329 : usbd_status err;
330 : struct tty *tp;
331 0 : struct termios t;
332 : int error, s;
333 :
334 : /* open the pipes if this is the first open */
335 0 : ucom_lock(sc);
336 0 : s = splusb();
337 0 : if (sc->sc_open == 0) {
338 : DPRINTF(("ucomopen: open pipes in=%d out=%d\n",
339 : sc->sc_bulkin_no, sc->sc_bulkout_no));
340 : DPRINTF(("ucomopen: hid %p pipes in=%p out=%p\n",
341 : sc->sc_uhidev, sc->sc_ipipe, sc->sc_opipe));
342 :
343 0 : if (sc->sc_bulkin_no != -1) {
344 :
345 : /* Open the bulk pipes */
346 0 : err = usbd_open_pipe(sc->sc_iface, sc->sc_bulkin_no, 0,
347 0 : &sc->sc_bulkin_pipe);
348 0 : if (err) {
349 : DPRINTF(("%s: open bulk out error (addr %d), err=%s\n",
350 : sc->sc_dev.dv_xname, sc->sc_bulkin_no,
351 : usbd_errstr(err)));
352 : error = EIO;
353 0 : goto fail_0;
354 : }
355 0 : err = usbd_open_pipe(sc->sc_iface, sc->sc_bulkout_no,
356 0 : USBD_EXCLUSIVE_USE, &sc->sc_bulkout_pipe);
357 0 : if (err) {
358 : DPRINTF(("%s: open bulk in error (addr %d), err=%s\n",
359 : sc->sc_dev.dv_xname, sc->sc_bulkout_no,
360 : usbd_errstr(err)));
361 : error = EIO;
362 0 : goto fail_1;
363 : }
364 :
365 : /* Allocate a request and an input buffer and start reading. */
366 0 : sc->sc_ixfer = usbd_alloc_xfer(sc->sc_uparent);
367 0 : if (sc->sc_ixfer == NULL) {
368 : error = ENOMEM;
369 0 : goto fail_2;
370 : }
371 :
372 0 : sc->sc_ibuf = usbd_alloc_buffer(sc->sc_ixfer,
373 0 : sc->sc_ibufsizepad);
374 0 : if (sc->sc_ibuf == NULL) {
375 : error = ENOMEM;
376 0 : goto fail_2;
377 : }
378 :
379 0 : sc->sc_oxfer = usbd_alloc_xfer(sc->sc_uparent);
380 0 : if (sc->sc_oxfer == NULL) {
381 : error = ENOMEM;
382 0 : goto fail_3;
383 : }
384 : } else {
385 : /*
386 : * input/output pipes and xfers already allocated
387 : * as is the input buffer.
388 : */
389 0 : sc->sc_ipipe = sc->sc_uhidev->sc_ipipe;
390 0 : sc->sc_ixfer = sc->sc_uhidev->sc_ixfer;
391 0 : sc->sc_opipe = sc->sc_uhidev->sc_opipe;
392 0 : sc->sc_oxfer = sc->sc_uhidev->sc_oxfer;
393 : }
394 :
395 0 : sc->sc_obuf = usbd_alloc_buffer(sc->sc_oxfer,
396 0 : sc->sc_obufsize + sc->sc_opkthdrlen);
397 0 : if (sc->sc_obuf == NULL) {
398 : error = ENOMEM;
399 : goto fail_4;
400 : }
401 :
402 0 : if (sc->sc_methods->ucom_open != NULL) {
403 0 : error = sc->sc_methods->ucom_open(sc->sc_parent,
404 0 : sc->sc_portno);
405 0 : if (error) {
406 0 : ucom_cleanup(sc);
407 0 : splx(s);
408 0 : ucom_unlock(sc);
409 0 : return (error);
410 : }
411 : }
412 :
413 0 : ucom_status_change(sc);
414 :
415 0 : ucomstartread(sc);
416 0 : sc->sc_open = 1;
417 0 : }
418 0 : splx(s);
419 0 : s = spltty();
420 0 : ucom_unlock(sc);
421 0 : tp = sc->sc_tty;
422 0 : splx(s);
423 :
424 : DPRINTF(("ucomopen: unit=%d, tp=%p\n", UCOMUNIT(dev), tp));
425 :
426 0 : tp->t_dev = dev;
427 0 : if (!ISSET(tp->t_state, TS_ISOPEN)) {
428 0 : SET(tp->t_state, TS_WOPEN);
429 0 : ttychars(tp);
430 :
431 : /*
432 : * Initialize the termios status to the defaults. Add in the
433 : * sticky bits from TIOCSFLAGS.
434 : */
435 0 : t.c_ispeed = 0;
436 0 : t.c_ospeed = TTYDEF_SPEED;
437 0 : t.c_cflag = TTYDEF_CFLAG;
438 0 : if (ISSET(sc->sc_swflags, TIOCFLAG_CLOCAL))
439 0 : SET(t.c_cflag, CLOCAL);
440 0 : if (ISSET(sc->sc_swflags, TIOCFLAG_CRTSCTS))
441 0 : SET(t.c_cflag, CRTSCTS);
442 0 : if (ISSET(sc->sc_swflags, TIOCFLAG_MDMBUF))
443 0 : SET(t.c_cflag, MDMBUF);
444 :
445 : /* Make sure ucomparam() will do something. */
446 0 : tp->t_ospeed = 0;
447 0 : (void) ucomparam(tp, &t);
448 0 : tp->t_iflag = TTYDEF_IFLAG;
449 0 : tp->t_oflag = TTYDEF_OFLAG;
450 0 : tp->t_lflag = TTYDEF_LFLAG;
451 :
452 0 : s = spltty();
453 0 : ttsetwater(tp);
454 :
455 : /*
456 : * Turn on DTR. We must always do this, even if carrier is not
457 : * present, because otherwise we'd have to use TIOCSDTR
458 : * immediately after setting CLOCAL, which applications do not
459 : * expect. We always assert DTR while the device is open
460 : * unless explicitly requested to deassert it.
461 : */
462 0 : ucom_dtr(sc, 1);
463 :
464 : /* XXX CLR(sc->sc_rx_flags, RX_ANY_BLOCK);*/
465 0 : ucom_hwiflow(sc);
466 :
467 0 : if (ISSET(sc->sc_swflags, TIOCFLAG_SOFTCAR) || UCOMCUA(dev) ||
468 0 : ISSET(sc->sc_msr, UMSR_DCD) || ISSET(tp->t_cflag, MDMBUF))
469 0 : SET(tp->t_state, TS_CARR_ON);
470 : else
471 0 : CLR(tp->t_state, TS_CARR_ON);
472 0 : } else if (ISSET(tp->t_state, TS_XCLUDE) && suser(p) != 0)
473 0 : return (EBUSY);
474 : else
475 0 : s = spltty();
476 :
477 0 : if (UCOMCUA(dev)) {
478 0 : if (ISSET(tp->t_state, TS_ISOPEN)) {
479 : /* Someone is already dialed in */
480 0 : splx(s);
481 0 : return (EBUSY);
482 : }
483 0 : sc->sc_cua = 1;
484 0 : } else {
485 : /* tty (not cua) device, wait for carrier */
486 0 : if (ISSET(flag, O_NONBLOCK)) {
487 0 : if (sc->sc_cua) {
488 0 : splx(s);
489 0 : return (EBUSY);
490 : }
491 : } else {
492 0 : while (sc->sc_cua || (!ISSET(tp->t_cflag, CLOCAL) &&
493 0 : !ISSET(tp->t_state, TS_CARR_ON))) {
494 0 : SET(tp->t_state, TS_WOPEN);
495 0 : error = ttysleep(tp, &tp->t_rawq,
496 : TTIPRI | PCATCH, ttopen, 0);
497 :
498 0 : if (usbd_is_dying(sc->sc_uparent)) {
499 0 : splx(s);
500 0 : return (EIO);
501 : }
502 :
503 : /*
504 : * If TS_WOPEN has been reset, that means the
505 : * cua device has been closed. We don't want
506 : * to fail in that case, so just go around
507 : * again.
508 : */
509 0 : if (error && ISSET(tp->t_state, TS_WOPEN)) {
510 0 : CLR(tp->t_state, TS_WOPEN);
511 0 : splx(s);
512 0 : goto bad;
513 : }
514 : }
515 : }
516 : }
517 0 : splx(s);
518 :
519 0 : error = (*LINESW(tp, l_open))(dev, tp, p);
520 0 : if (error)
521 : goto bad;
522 :
523 0 : return (0);
524 :
525 : fail_4:
526 0 : if (sc->sc_bulkin_no != -1)
527 0 : usbd_free_xfer(sc->sc_oxfer);
528 0 : sc->sc_oxfer = NULL;
529 : fail_3:
530 0 : usbd_free_xfer(sc->sc_ixfer);
531 0 : sc->sc_ixfer = NULL;
532 : fail_2:
533 0 : usbd_close_pipe(sc->sc_bulkout_pipe);
534 0 : sc->sc_bulkout_pipe = NULL;
535 : fail_1:
536 0 : usbd_close_pipe(sc->sc_bulkin_pipe);
537 0 : sc->sc_bulkin_pipe = NULL;
538 : fail_0:
539 0 : splx(s);
540 0 : ucom_unlock(sc);
541 0 : return (error);
542 :
543 : bad:
544 0 : ucom_lock(sc);
545 0 : ucom_cleanup(sc);
546 0 : ucom_unlock(sc);
547 :
548 0 : return (error);
549 0 : }
550 :
551 : int
552 0 : ucomclose(dev_t dev, int flag, int mode, struct proc *p)
553 : {
554 0 : struct ucom_softc *sc = ucom_cd.cd_devs[UCOMUNIT(dev)];
555 : int error;
556 :
557 0 : if (sc == NULL || usbd_is_dying(sc->sc_uparent))
558 0 : return (EIO);
559 :
560 : DPRINTF(("ucomclose: unit=%d\n", UCOMUNIT(dev)));
561 :
562 0 : sc->sc_refcnt++;
563 0 : error = ucom_do_close(sc, flag, mode, p);
564 0 : if (--sc->sc_refcnt < 0)
565 0 : usb_detach_wakeup(&sc->sc_dev);
566 :
567 0 : return (error);
568 0 : }
569 :
570 : int
571 0 : ucom_do_close(struct ucom_softc *sc, int flag, int mode, struct proc *p)
572 : {
573 0 : struct tty *tp = sc->sc_tty;
574 : int s;
575 :
576 0 : if (!ISSET(tp->t_state, TS_ISOPEN))
577 0 : return (0);
578 :
579 0 : ucom_lock(sc);
580 :
581 0 : (*LINESW(tp, l_close))(tp, flag, p);
582 0 : s = spltty();
583 0 : CLR(tp->t_state, TS_BUSY | TS_FLUSH);
584 0 : sc->sc_cua = 0;
585 0 : ttyclose(tp);
586 0 : splx(s);
587 0 : ucom_cleanup(sc);
588 :
589 0 : if (sc->sc_methods->ucom_close != NULL)
590 0 : sc->sc_methods->ucom_close(sc->sc_parent, sc->sc_portno);
591 :
592 0 : ucom_unlock(sc);
593 :
594 0 : return (0);
595 0 : }
596 :
597 : int
598 0 : ucomread(dev_t dev, struct uio *uio, int flag)
599 : {
600 0 : struct ucom_softc *sc = ucom_cd.cd_devs[UCOMUNIT(dev)];
601 : struct tty *tp;
602 : int error;
603 :
604 0 : if (sc == NULL || usbd_is_dying(sc->sc_uparent))
605 0 : return (EIO);
606 :
607 0 : sc->sc_refcnt++;
608 0 : tp = sc->sc_tty;
609 0 : error = (*LINESW(tp, l_read))(tp, uio, flag);
610 0 : if (--sc->sc_refcnt < 0)
611 0 : usb_detach_wakeup(&sc->sc_dev);
612 0 : return (error);
613 0 : }
614 :
615 : int
616 0 : ucomwrite(dev_t dev, struct uio *uio, int flag)
617 : {
618 0 : struct ucom_softc *sc = ucom_cd.cd_devs[UCOMUNIT(dev)];
619 : struct tty *tp;
620 : int error;
621 :
622 0 : if (sc == NULL || usbd_is_dying(sc->sc_uparent))
623 0 : return (EIO);
624 :
625 0 : sc->sc_refcnt++;
626 0 : tp = sc->sc_tty;
627 0 : error = (*LINESW(tp, l_write))(tp, uio, flag);
628 0 : if (--sc->sc_refcnt < 0)
629 0 : usb_detach_wakeup(&sc->sc_dev);
630 0 : return (error);
631 0 : }
632 :
633 : struct tty *
634 0 : ucomtty(dev_t dev)
635 : {
636 0 : struct ucom_softc *sc = ucom_cd.cd_devs[UCOMUNIT(dev)];
637 :
638 : /*
639 : * Return a pointer to our tty even if the device is dying
640 : * in order to properly close it in the detach routine.
641 : */
642 0 : if (sc == NULL)
643 0 : return (NULL);
644 :
645 0 : return (sc->sc_tty);
646 0 : }
647 :
648 : int
649 0 : ucomioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct proc *p)
650 : {
651 0 : struct ucom_softc *sc = ucom_cd.cd_devs[UCOMUNIT(dev)];
652 : int error;
653 :
654 0 : if (sc == NULL || usbd_is_dying(sc->sc_uparent))
655 0 : return (EIO);
656 :
657 0 : sc->sc_refcnt++;
658 0 : error = ucom_do_ioctl(sc, cmd, data, flag, p);
659 0 : if (--sc->sc_refcnt < 0)
660 0 : usb_detach_wakeup(&sc->sc_dev);
661 0 : return (error);
662 0 : }
663 :
664 : int
665 0 : ucom_do_ioctl(struct ucom_softc *sc, u_long cmd, caddr_t data,
666 : int flag, struct proc *p)
667 : {
668 0 : struct tty *tp = sc->sc_tty;
669 : int error;
670 : int s;
671 :
672 : DPRINTF(("ucomioctl: cmd=0x%08lx\n", cmd));
673 :
674 0 : error = (*LINESW(tp, l_ioctl))(tp, cmd, data, flag, p);
675 0 : if (error >= 0)
676 0 : return (error);
677 :
678 0 : error = ttioctl(tp, cmd, data, flag, p);
679 0 : if (error >= 0)
680 0 : return (error);
681 :
682 0 : if (sc->sc_methods->ucom_ioctl != NULL) {
683 0 : error = sc->sc_methods->ucom_ioctl(sc->sc_parent,
684 0 : sc->sc_portno, cmd, data, flag, p);
685 0 : if (error != ENOTTY)
686 0 : return (error);
687 : }
688 :
689 : error = 0;
690 :
691 : DPRINTF(("ucomioctl: our cmd=0x%08lx\n", cmd));
692 0 : s = spltty();
693 :
694 0 : switch (cmd) {
695 : case TIOCSBRK:
696 0 : ucom_break(sc, 1);
697 0 : break;
698 :
699 : case TIOCCBRK:
700 0 : ucom_break(sc, 0);
701 0 : break;
702 :
703 : case TIOCSDTR:
704 0 : ucom_dtr(sc, 1);
705 0 : break;
706 :
707 : case TIOCCDTR:
708 0 : ucom_dtr(sc, 0);
709 0 : break;
710 :
711 : case TIOCGFLAGS:
712 0 : *(int *)data = sc->sc_swflags;
713 0 : break;
714 :
715 : case TIOCSFLAGS:
716 0 : error = suser(p);
717 0 : if (error)
718 : break;
719 0 : sc->sc_swflags = *(int *)data;
720 0 : break;
721 :
722 : case TIOCMSET:
723 : case TIOCMBIS:
724 : case TIOCMBIC:
725 0 : tiocm_to_ucom(sc, cmd, *(int *)data);
726 0 : break;
727 :
728 : case TIOCMGET:
729 0 : *(int *)data = ucom_to_tiocm(sc);
730 0 : break;
731 :
732 : default:
733 : error = ENOTTY;
734 0 : break;
735 : }
736 :
737 0 : splx(s);
738 :
739 0 : return (error);
740 0 : }
741 :
742 : void
743 0 : tiocm_to_ucom(struct ucom_softc *sc, u_long how, int ttybits)
744 : {
745 : u_char combits;
746 :
747 : combits = 0;
748 0 : if (ISSET(ttybits, TIOCM_DTR))
749 0 : SET(combits, UMCR_DTR);
750 0 : if (ISSET(ttybits, TIOCM_RTS))
751 0 : SET(combits, UMCR_RTS);
752 :
753 0 : switch (how) {
754 : case TIOCMBIC:
755 0 : CLR(sc->sc_mcr, combits);
756 0 : break;
757 :
758 : case TIOCMBIS:
759 0 : SET(sc->sc_mcr, combits);
760 0 : break;
761 :
762 : case TIOCMSET:
763 0 : CLR(sc->sc_mcr, UMCR_DTR | UMCR_RTS);
764 0 : SET(sc->sc_mcr, combits);
765 0 : break;
766 : }
767 :
768 0 : if (how == TIOCMSET || ISSET(combits, UMCR_DTR))
769 0 : ucom_dtr(sc, (sc->sc_mcr & UMCR_DTR) != 0);
770 0 : if (how == TIOCMSET || ISSET(combits, UMCR_RTS))
771 0 : ucom_rts(sc, (sc->sc_mcr & UMCR_RTS) != 0);
772 0 : }
773 :
774 : int
775 0 : ucom_to_tiocm(struct ucom_softc *sc)
776 : {
777 : u_char combits;
778 : int ttybits = 0;
779 :
780 0 : combits = sc->sc_mcr;
781 0 : if (ISSET(combits, UMCR_DTR))
782 0 : SET(ttybits, TIOCM_DTR);
783 0 : if (ISSET(combits, UMCR_RTS))
784 0 : SET(ttybits, TIOCM_RTS);
785 :
786 0 : combits = sc->sc_msr;
787 0 : if (ISSET(combits, UMSR_DCD))
788 0 : SET(ttybits, TIOCM_CD);
789 0 : if (ISSET(combits, UMSR_CTS))
790 0 : SET(ttybits, TIOCM_CTS);
791 0 : if (ISSET(combits, UMSR_DSR))
792 0 : SET(ttybits, TIOCM_DSR);
793 0 : if (ISSET(combits, UMSR_RI | UMSR_TERI))
794 0 : SET(ttybits, TIOCM_RI);
795 :
796 : #if 0
797 : XXX;
798 : if (sc->sc_ier != 0)
799 : SET(ttybits, TIOCM_LE);
800 : #endif
801 :
802 0 : return (ttybits);
803 : }
804 :
805 : void
806 0 : ucom_break(struct ucom_softc *sc, int onoff)
807 : {
808 : DPRINTF(("ucom_break: onoff=%d\n", onoff));
809 :
810 0 : if (sc->sc_methods->ucom_set != NULL)
811 0 : sc->sc_methods->ucom_set(sc->sc_parent, sc->sc_portno,
812 : UCOM_SET_BREAK, onoff);
813 0 : }
814 :
815 : void
816 0 : ucom_dtr(struct ucom_softc *sc, int onoff)
817 : {
818 : DPRINTF(("ucom_dtr: onoff=%d\n", onoff));
819 :
820 0 : if (sc->sc_methods->ucom_set != NULL) {
821 0 : sc->sc_methods->ucom_set(sc->sc_parent, sc->sc_portno,
822 : UCOM_SET_DTR, onoff);
823 : /* When not using CRTSCTS, RTS follows DTR. */
824 0 : if (!(sc->sc_swflags & TIOCFLAG_CRTSCTS))
825 0 : ucom_rts(sc, onoff);
826 : }
827 0 : }
828 :
829 : void
830 0 : ucom_rts(struct ucom_softc *sc, int onoff)
831 : {
832 : DPRINTF(("ucom_rts: onoff=%d\n", onoff));
833 :
834 0 : if (sc->sc_methods->ucom_set != NULL)
835 0 : sc->sc_methods->ucom_set(sc->sc_parent, sc->sc_portno,
836 : UCOM_SET_RTS, onoff);
837 0 : }
838 :
839 : void
840 0 : ucom_status_change(struct ucom_softc *sc)
841 : {
842 0 : struct tty *tp = sc->sc_tty;
843 : u_char old_msr;
844 :
845 0 : if (sc->sc_methods->ucom_get_status != NULL) {
846 0 : old_msr = sc->sc_msr;
847 0 : sc->sc_methods->ucom_get_status(sc->sc_parent, sc->sc_portno,
848 0 : &sc->sc_lsr, &sc->sc_msr);
849 :
850 0 : ttytstamp(tp, old_msr & UMSR_CTS, sc->sc_msr & UMSR_CTS,
851 0 : old_msr & UMSR_DCD, sc->sc_msr & UMSR_DCD);
852 :
853 0 : if (ISSET((sc->sc_msr ^ old_msr), UMSR_DCD))
854 0 : (*LINESW(tp, l_modem))(tp,
855 0 : ISSET(sc->sc_msr, UMSR_DCD));
856 : } else {
857 0 : sc->sc_lsr = 0;
858 0 : sc->sc_msr = 0;
859 : }
860 0 : }
861 :
862 : int
863 0 : ucomparam(struct tty *tp, struct termios *t)
864 : {
865 0 : struct ucom_softc *sc = ucom_cd.cd_devs[UCOMUNIT(tp->t_dev)];
866 : int error;
867 :
868 0 : if (sc == NULL || usbd_is_dying(sc->sc_uparent))
869 0 : return (EIO);
870 :
871 : /* Check requested parameters. */
872 0 : if (t->c_ispeed && t->c_ispeed != t->c_ospeed)
873 0 : return (EINVAL);
874 :
875 : /*
876 : * For the console, always force CLOCAL and !HUPCL, so that the port
877 : * is always active.
878 : */
879 0 : if (ISSET(sc->sc_swflags, TIOCFLAG_SOFTCAR)) {
880 0 : SET(t->c_cflag, CLOCAL);
881 0 : CLR(t->c_cflag, HUPCL);
882 0 : }
883 :
884 : /*
885 : * If there were no changes, don't do anything. This avoids dropping
886 : * input and improves performance when all we did was frob things like
887 : * VMIN and VTIME.
888 : */
889 0 : if (tp->t_ospeed == t->c_ospeed &&
890 0 : tp->t_cflag == t->c_cflag)
891 0 : return (0);
892 :
893 : /* XXX lcr = ISSET(sc->sc_lcr, LCR_SBREAK) | cflag2lcr(t->c_cflag); */
894 :
895 : /* And copy to tty. */
896 0 : tp->t_ispeed = 0;
897 0 : tp->t_ospeed = t->c_ospeed;
898 0 : tp->t_cflag = t->c_cflag;
899 :
900 0 : if (sc->sc_methods->ucom_param != NULL) {
901 0 : error = sc->sc_methods->ucom_param(sc->sc_parent, sc->sc_portno,
902 : t);
903 0 : if (error)
904 0 : return (error);
905 : }
906 :
907 : /* XXX worry about CHWFLOW */
908 :
909 : /*
910 : * Update the tty layer's idea of the carrier bit, in case we changed
911 : * CLOCAL or MDMBUF. We don't hang up here; we only do that by
912 : * explicit request.
913 : */
914 : DPRINTF(("ucomparam: l_modem\n"));
915 0 : (void) (*LINESW(tp, l_modem))(tp, 1 /* XXX carrier */ );
916 :
917 : #if 0
918 : XXX what if the hardware is not open
919 : if (!ISSET(t->c_cflag, CHWFLOW)) {
920 : if (sc->sc_tx_stopped) {
921 : sc->sc_tx_stopped = 0;
922 : ucomstart(tp);
923 : }
924 : }
925 : #endif
926 :
927 0 : return (0);
928 0 : }
929 :
930 : /*
931 : * (un)block input via hw flowcontrol
932 : */
933 : void
934 0 : ucom_hwiflow(struct ucom_softc *sc)
935 : {
936 : DPRINTF(("ucom_hwiflow:\n"));
937 : #if 0
938 : XXX
939 : bus_space_tag_t iot = sc->sc_iot;
940 : bus_space_handle_t ioh = sc->sc_ioh;
941 :
942 : if (sc->sc_mcr_rts == 0)
943 : return;
944 :
945 : if (ISSET(sc->sc_rx_flags, RX_ANY_BLOCK)) {
946 : CLR(sc->sc_mcr, sc->sc_mcr_rts);
947 : CLR(sc->sc_mcr_active, sc->sc_mcr_rts);
948 : } else {
949 : SET(sc->sc_mcr, sc->sc_mcr_rts);
950 : SET(sc->sc_mcr_active, sc->sc_mcr_rts);
951 : }
952 : bus_space_write_1(iot, ioh, com_mcr, sc->sc_mcr_active);
953 : #endif
954 0 : }
955 :
956 : void
957 0 : ucomstart(struct tty *tp)
958 : {
959 0 : struct ucom_softc *sc = ucom_cd.cd_devs[UCOMUNIT(tp->t_dev)];
960 : usbd_status err;
961 : int s;
962 : u_char *data;
963 0 : int cnt;
964 :
965 0 : if (sc == NULL || usbd_is_dying(sc->sc_uparent))
966 0 : return;
967 :
968 0 : s = spltty();
969 0 : if (ISSET(tp->t_state, TS_BUSY | TS_TIMEOUT | TS_TTSTOP)) {
970 : DPRINTFN(4,("ucomstart: no go, state=0x%x\n", tp->t_state));
971 : goto out;
972 : }
973 0 : if (sc->sc_tx_stopped)
974 : goto out;
975 :
976 0 : ttwakeupwr(tp);
977 0 : if (tp->t_outq.c_cc == 0)
978 : goto out;
979 :
980 : /* Grab the first contiguous region of buffer space. */
981 0 : data = tp->t_outq.c_cf;
982 0 : cnt = ndqb(&tp->t_outq, 0);
983 :
984 0 : if (cnt == 0) {
985 : DPRINTF(("ucomstart: cnt==0\n"));
986 : goto out;
987 : }
988 :
989 0 : SET(tp->t_state, TS_BUSY);
990 :
991 0 : if (cnt > sc->sc_obufsize) {
992 : DPRINTF(("ucomstart: big buffer %d chars\n", cnt));
993 0 : cnt = sc->sc_obufsize;
994 0 : }
995 0 : if (sc->sc_methods->ucom_write != NULL)
996 0 : sc->sc_methods->ucom_write(sc->sc_parent, sc->sc_portno,
997 0 : sc->sc_obuf, data, &cnt);
998 : else
999 0 : memcpy(sc->sc_obuf, data, cnt);
1000 :
1001 : DPRINTFN(4,("ucomstart: %d chars\n", cnt));
1002 : #ifdef DIAGNOSTIC
1003 0 : if (sc->sc_oxfer == NULL) {
1004 0 : printf("ucomstart: null oxfer\n");
1005 0 : goto out;
1006 : }
1007 : #endif
1008 0 : if (sc->sc_bulkout_pipe != NULL) {
1009 0 : usbd_setup_xfer(sc->sc_oxfer, sc->sc_bulkout_pipe,
1010 0 : (void *)sc, sc->sc_obuf, cnt,
1011 : USBD_NO_COPY, USBD_NO_TIMEOUT, ucomwritecb);
1012 0 : } else {
1013 0 : usbd_setup_xfer(sc->sc_oxfer, sc->sc_opipe,
1014 0 : (void *)sc, sc->sc_obuf, cnt,
1015 : USBD_NO_COPY, USBD_NO_TIMEOUT, ucomwritecb);
1016 : }
1017 : /* What can we do on error? */
1018 0 : err = usbd_transfer(sc->sc_oxfer);
1019 : #ifdef DIAGNOSTIC
1020 0 : if (err != USBD_IN_PROGRESS)
1021 0 : printf("ucomstart: err=%s\n", usbd_errstr(err));
1022 : #endif
1023 :
1024 : out:
1025 0 : splx(s);
1026 0 : }
1027 :
1028 : int
1029 0 : ucomstop(struct tty *tp, int flag)
1030 : {
1031 : DPRINTF(("ucomstop: flag=%d\n", flag));
1032 : #if 0
1033 : /*struct ucom_softc *sc = ucom_cd.cd_devs[UCOMUNIT(tp->t_dev)];*/
1034 : int s;
1035 :
1036 : s = spltty();
1037 : if (ISSET(tp->t_state, TS_BUSY)) {
1038 : DPRINTF(("ucomstop: XXX\n"));
1039 : /* sc->sc_tx_stopped = 1; */
1040 : if (!ISSET(tp->t_state, TS_TTSTOP))
1041 : SET(tp->t_state, TS_FLUSH);
1042 : }
1043 : splx(s);
1044 : #endif
1045 0 : return (0);
1046 : }
1047 :
1048 : void
1049 0 : ucomwritecb(struct usbd_xfer *xfer, void *p, usbd_status status)
1050 : {
1051 0 : struct ucom_softc *sc = (struct ucom_softc *)p;
1052 0 : struct tty *tp = sc->sc_tty;
1053 0 : u_int32_t cc;
1054 : int s;
1055 :
1056 : DPRINTFN(5,("ucomwritecb: %p %p status=%d\n", xfer, p, status));
1057 :
1058 0 : if (status == USBD_CANCELLED || usbd_is_dying(sc->sc_uparent))
1059 : goto error;
1060 :
1061 0 : if (sc->sc_bulkin_pipe != NULL) {
1062 0 : if (status) {
1063 0 : usbd_clear_endpoint_stall_async(sc->sc_bulkin_pipe);
1064 : /* XXX we should restart after some delay. */
1065 0 : goto error;
1066 : }
1067 0 : usbd_get_xfer_status(xfer, NULL, NULL, &cc, NULL);
1068 0 : } else {
1069 0 : usbd_get_xfer_status(xfer, NULL, NULL, &cc, NULL);
1070 : // XXX above gives me wrong cc, no?
1071 : }
1072 :
1073 : DPRINTFN(5,("ucomwritecb: cc=%d\n", cc));
1074 : /* convert from USB bytes to tty bytes */
1075 0 : cc -= sc->sc_opkthdrlen;
1076 :
1077 0 : s = spltty();
1078 0 : CLR(tp->t_state, TS_BUSY);
1079 0 : if (ISSET(tp->t_state, TS_FLUSH))
1080 0 : CLR(tp->t_state, TS_FLUSH);
1081 : else
1082 0 : ndflush(&tp->t_outq, cc);
1083 0 : (*LINESW(tp, l_start))(tp);
1084 0 : splx(s);
1085 0 : return;
1086 :
1087 : error:
1088 0 : s = spltty();
1089 0 : CLR(tp->t_state, TS_BUSY);
1090 0 : splx(s);
1091 0 : }
1092 :
1093 : usbd_status
1094 0 : ucomstartread(struct ucom_softc *sc)
1095 : {
1096 : usbd_status err;
1097 :
1098 : DPRINTFN(5,("ucomstartread: start\n"));
1099 : #ifdef DIAGNOSTIC
1100 0 : if (sc->sc_ixfer == NULL) {
1101 : DPRINTF(("ucomstartread: null ixfer\n"));
1102 0 : return (USBD_INVAL);
1103 : }
1104 : #endif
1105 :
1106 0 : if (sc->sc_bulkin_pipe != NULL) {
1107 0 : usbd_setup_xfer(sc->sc_ixfer, sc->sc_bulkin_pipe,
1108 0 : (void *)sc,
1109 0 : sc->sc_ibuf, sc->sc_ibufsize,
1110 : USBD_SHORT_XFER_OK | USBD_NO_COPY,
1111 : USBD_NO_TIMEOUT, ucomreadcb);
1112 0 : err = usbd_transfer(sc->sc_ixfer);
1113 0 : if (err != USBD_IN_PROGRESS) {
1114 : DPRINTF(("ucomstartread: err=%s\n", usbd_errstr(err)));
1115 0 : return (err);
1116 : }
1117 : }
1118 :
1119 0 : return (USBD_NORMAL_COMPLETION);
1120 0 : }
1121 :
1122 : void
1123 0 : ucomreadcb(struct usbd_xfer *xfer, void *p, usbd_status status)
1124 : {
1125 0 : struct ucom_softc *sc = (struct ucom_softc *)p;
1126 0 : struct tty *tp = sc->sc_tty;
1127 0 : int (*rint)(int c, struct tty *tp) = LINESW(tp, l_rint);
1128 : usbd_status err;
1129 0 : u_int32_t cc;
1130 0 : u_char *cp;
1131 : int s;
1132 :
1133 : DPRINTFN(5,("ucomreadcb: status=%d\n", status));
1134 :
1135 0 : if (status == USBD_CANCELLED || status == USBD_IOERROR ||
1136 0 : usbd_is_dying(sc->sc_uparent)) {
1137 : DPRINTF(("ucomreadcb: dying\n"));
1138 : /* Send something to wake upper layer */
1139 0 : s = spltty();
1140 0 : (*rint)('\n', tp);
1141 0 : ttwakeup(tp);
1142 0 : splx(s);
1143 0 : return;
1144 : }
1145 :
1146 0 : if (status) {
1147 0 : if (sc->sc_bulkin_pipe != NULL) {
1148 0 : usbd_clear_endpoint_stall_async(sc->sc_bulkin_pipe);
1149 : /* XXX we should restart after some delay. */
1150 0 : return;
1151 : }
1152 : }
1153 :
1154 0 : usbd_get_xfer_status(xfer, NULL, (void *)&cp, &cc, NULL);
1155 : DPRINTFN(5,("ucomreadcb: got %d chars, tp=%p\n", cc, tp));
1156 0 : if (sc->sc_methods->ucom_read != NULL)
1157 0 : sc->sc_methods->ucom_read(sc->sc_parent, sc->sc_portno,
1158 : &cp, &cc);
1159 :
1160 0 : s = spltty();
1161 : /* Give characters to tty layer. */
1162 0 : while (cc-- > 0) {
1163 : DPRINTFN(7,("ucomreadcb: char=0x%02x\n", *cp));
1164 0 : if ((*rint)(*cp++, tp) == -1) {
1165 : /* XXX what should we do? */
1166 0 : printf("%s: lost %d chars\n", sc->sc_dev.dv_xname,
1167 0 : cc);
1168 0 : break;
1169 : }
1170 : }
1171 0 : splx(s);
1172 :
1173 0 : err = ucomstartread(sc);
1174 0 : if (err) {
1175 0 : printf("%s: read start failed\n", sc->sc_dev.dv_xname);
1176 : /* XXX what should we dow now? */
1177 0 : }
1178 0 : }
1179 :
1180 : void
1181 0 : ucom_cleanup(struct ucom_softc *sc)
1182 : {
1183 : DPRINTF(("ucom_cleanup: closing pipes\n"));
1184 :
1185 0 : sc->sc_open = 0;
1186 :
1187 0 : ucom_shutdown(sc);
1188 0 : if (sc->sc_bulkin_pipe != NULL) {
1189 0 : usbd_abort_pipe(sc->sc_bulkin_pipe);
1190 0 : usbd_close_pipe(sc->sc_bulkin_pipe);
1191 0 : sc->sc_bulkin_pipe = NULL;
1192 0 : }
1193 0 : if (sc->sc_bulkout_pipe != NULL) {
1194 0 : usbd_abort_pipe(sc->sc_bulkout_pipe);
1195 0 : usbd_close_pipe(sc->sc_bulkout_pipe);
1196 0 : sc->sc_bulkout_pipe = NULL;
1197 0 : }
1198 0 : if (sc->sc_ixfer != NULL) {
1199 0 : if (sc->sc_bulkin_no != -1) {
1200 0 : usbd_free_buffer(sc->sc_ixfer);
1201 0 : sc->sc_ibuf = NULL;
1202 0 : usbd_free_xfer(sc->sc_ixfer);
1203 0 : }
1204 0 : sc->sc_ixfer = NULL;
1205 0 : }
1206 0 : if (sc->sc_oxfer != NULL) {
1207 0 : usbd_free_buffer(sc->sc_oxfer);
1208 0 : sc->sc_obuf = NULL;
1209 0 : if (sc->sc_bulkin_no != -1)
1210 0 : usbd_free_xfer(sc->sc_oxfer);
1211 0 : sc->sc_oxfer = NULL;
1212 0 : }
1213 0 : }
1214 :
1215 : #endif /* NUCOM > 0 */
1216 :
1217 : int
1218 0 : ucomprint(void *aux, const char *pnp)
1219 : {
1220 0 : struct ucom_attach_args *uca = aux;
1221 :
1222 0 : if (pnp)
1223 0 : printf("ucom at %s", pnp);
1224 0 : if (uca->portno != UCOM_UNK_PORTNO)
1225 0 : printf(" portno %d", uca->portno);
1226 0 : return (UNCONF);
1227 : }
1228 :
1229 : int
1230 0 : ucomsubmatch(struct device *parent, void *match, void *aux)
1231 : {
1232 0 : struct ucom_attach_args *uca = aux;
1233 0 : struct cfdata *cf = match;
1234 :
1235 0 : if (uca->portno != UCOM_UNK_PORTNO &&
1236 0 : cf->ucomcf_portno != UCOM_UNK_PORTNO &&
1237 0 : cf->ucomcf_portno != uca->portno)
1238 0 : return (0);
1239 0 : return ((*cf->cf_attach->ca_match)(parent, cf, aux));
1240 0 : }
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