FreeBSD/Linux Kernel Cross Reference
sys/dev/usb/ubsa.c
1 /* $NetBSD: ubsa.c,v 1.8 2004/01/05 13:28:18 augustss Exp $ */
2 /*-
3 * Copyright (c) 2002, Alexander Kabaev <kan.FreeBSD.org>.
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 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27 /*
28 * Copyright (c) 2001 The NetBSD Foundation, Inc.
29 * All rights reserved.
30 *
31 * This code is derived from software contributed to The NetBSD Foundation
32 * by Ichiro FUKUHARA (ichiro@ichiro.org).
33 *
34 * Redistribution and use in source and binary forms, with or without
35 * modification, are permitted provided that the following conditions
36 * are met:
37 * 1. Redistributions of source code must retain the above copyright
38 * notice, this list of conditions and the following disclaimer.
39 * 2. Redistributions in binary form must reproduce the above copyright
40 * notice, this list of conditions and the following disclaimer in the
41 * documentation and/or other materials provided with the distribution.
42 * 3. All advertising materials mentioning features or use of this software
43 * must display the following acknowledgement:
44 * This product includes software developed by the NetBSD
45 * Foundation, Inc. and its contributors.
46 * 4. Neither the name of The NetBSD Foundation nor the names of its
47 * contributors may be used to endorse or promote products derived
48 * from this software without specific prior written permission.
49 *
50 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
51 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
52 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
53 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
54 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
55 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
56 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
57 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
58 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
59 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
60 * POSSIBILITY OF SUCH DAMAGE.
61 */
62
63 #include <sys/cdefs.h>
64 __KERNEL_RCSID(0, "$NetBSD: ubsa.c,v 1.8 2004/01/05 13:28:18 augustss Exp $");
65
66 #include <sys/param.h>
67 #include <sys/systm.h>
68 #include <sys/kernel.h>
69 #include <sys/malloc.h>
70 #ifdef __FreeBSD__
71 #include <sys/bus.h>
72 #endif
73 #include <sys/ioccom.h>
74 #include <sys/fcntl.h>
75 #include <sys/conf.h>
76 #include <sys/tty.h>
77 #include <sys/file.h>
78 #if __FreeBSD_version >= 500014
79 #include <sys/selinfo.h>
80 #else
81 #include <sys/select.h>
82 #endif
83 #include <sys/proc.h>
84 #include <sys/device.h>
85 #include <sys/poll.h>
86 #include <sys/sysctl.h>
87
88 #include <dev/usb/usb.h>
89 #include <dev/usb/usbcdc.h>
90
91 #include <dev/usb/usbdi.h>
92 #include <dev/usb/usbdi_util.h>
93 #include <dev/usb/usbdevs.h>
94 #include <dev/usb/usb_quirks.h>
95
96 #include <dev/usb/ucomvar.h>
97
98 #ifdef UBSA_DEBUG
99 Static int ubsadebug = 0;
100 #ifdef __FreeBSD__
101 SYSCTL_NODE(_hw_usb, OID_AUTO, ubsa, CTLFLAG_RW, 0, "USB ubsa");
102 SYSCTL_INT(_hw_usb_ubsa, OID_AUTO, debug, CTLFLAG_RW,
103 &ubsadebug, 0, "ubsa debug level");
104 #endif
105
106 #define DPRINTFN(n, x) do { \
107 if (ubsadebug > (n)) \
108 logprintf x; \
109 } while (0)
110 #else
111 #define DPRINTFN(n, x)
112 #endif
113 #define DPRINTF(x) DPRINTFN(0, x)
114
115 #define UBSA_MODVER 1 /* module version */
116
117 #define UBSA_CONFIG_INDEX 1
118 #define UBSA_IFACE_INDEX 0
119
120 #define UBSA_INTR_INTERVAL 100 /* ms */
121
122 #define UBSA_SET_BAUDRATE 0x00
123 #define UBSA_SET_STOP_BITS 0x01
124 #define UBSA_SET_DATA_BITS 0x02
125 #define UBSA_SET_PARITY 0x03
126 #define UBSA_SET_DTR 0x0A
127 #define UBSA_SET_RTS 0x0B
128 #define UBSA_SET_BREAK 0x0C
129 #define UBSA_SET_FLOW_CTRL 0x10
130
131 #define UBSA_PARITY_NONE 0x00
132 #define UBSA_PARITY_EVEN 0x01
133 #define UBSA_PARITY_ODD 0x02
134 #define UBSA_PARITY_MARK 0x03
135 #define UBSA_PARITY_SPACE 0x04
136
137 #define UBSA_FLOW_NONE 0x0000
138 #define UBSA_FLOW_OCTS 0x0001
139 #define UBSA_FLOW_ODSR 0x0002
140 #define UBSA_FLOW_IDSR 0x0004
141 #define UBSA_FLOW_IDTR 0x0008
142 #define UBSA_FLOW_IRTS 0x0010
143 #define UBSA_FLOW_ORTS 0x0020
144 #define UBSA_FLOW_UNKNOWN 0x0040
145 #define UBSA_FLOW_OXON 0x0080
146 #define UBSA_FLOW_IXON 0x0100
147
148 /* line status register */
149 #define UBSA_LSR_TSRE 0x40 /* Transmitter empty: byte sent */
150 #define UBSA_LSR_TXRDY 0x20 /* Transmitter buffer empty */
151 #define UBSA_LSR_BI 0x10 /* Break detected */
152 #define UBSA_LSR_FE 0x08 /* Framing error: bad stop bit */
153 #define UBSA_LSR_PE 0x04 /* Parity error */
154 #define UBSA_LSR_OE 0x02 /* Overrun, lost incoming byte */
155 #define UBSA_LSR_RXRDY 0x01 /* Byte ready in Receive Buffer */
156 #define UBSA_LSR_RCV_MASK 0x1f /* Mask for incoming data or error */
157
158 /* modem status register */
159 /* All deltas are from the last read of the MSR. */
160 #define UBSA_MSR_DCD 0x80 /* Current Data Carrier Detect */
161 #define UBSA_MSR_RI 0x40 /* Current Ring Indicator */
162 #define UBSA_MSR_DSR 0x20 /* Current Data Set Ready */
163 #define UBSA_MSR_CTS 0x10 /* Current Clear to Send */
164 #define UBSA_MSR_DDCD 0x08 /* DCD has changed state */
165 #define UBSA_MSR_TERI 0x04 /* RI has toggled low to high */
166 #define UBSA_MSR_DDSR 0x02 /* DSR has changed state */
167 #define UBSA_MSR_DCTS 0x01 /* CTS has changed state */
168
169 struct ubsa_softc {
170 USBBASEDEVICE sc_dev; /* base device */
171 usbd_device_handle sc_udev; /* USB device */
172 usbd_interface_handle sc_iface; /* interface */
173
174 int sc_iface_number; /* interface number */
175
176 usbd_interface_handle sc_intr_iface; /* interrupt interface */
177 int sc_intr_number; /* interrupt number */
178 usbd_pipe_handle sc_intr_pipe; /* interrupt pipe */
179 u_char *sc_intr_buf; /* interrupt buffer */
180 int sc_isize;
181
182 u_char sc_dtr; /* current DTR state */
183 u_char sc_rts; /* current RTS state */
184
185 u_char sc_lsr; /* Local status register */
186 u_char sc_msr; /* ubsa status register */
187
188 device_ptr_t sc_subdev; /* ucom device */
189
190 u_char sc_dying; /* disconnecting */
191
192 };
193
194 Static void ubsa_intr(usbd_xfer_handle, usbd_private_handle, usbd_status);
195
196 Static void ubsa_get_status(void *, int, u_char *, u_char *);
197 Static void ubsa_set(void *, int, int, int);
198 Static int ubsa_param(void *, int, struct termios *);
199 Static int ubsa_open(void *, int);
200 Static void ubsa_close(void *, int);
201
202 Static void ubsa_break(struct ubsa_softc *sc, int onoff);
203 Static int ubsa_request(struct ubsa_softc *, u_int8_t, u_int16_t);
204 Static void ubsa_dtr(struct ubsa_softc *, int);
205 Static void ubsa_rts(struct ubsa_softc *, int);
206 Static void ubsa_baudrate(struct ubsa_softc *, speed_t);
207 Static void ubsa_parity(struct ubsa_softc *, tcflag_t);
208 Static void ubsa_databits(struct ubsa_softc *, tcflag_t);
209 Static void ubsa_stopbits(struct ubsa_softc *, tcflag_t);
210 Static void ubsa_flow(struct ubsa_softc *, tcflag_t, tcflag_t);
211
212 struct ucom_methods ubsa_methods = {
213 ubsa_get_status,
214 ubsa_set,
215 ubsa_param,
216 NULL,
217 ubsa_open,
218 ubsa_close,
219 NULL,
220 NULL
221 };
222
223 Static const struct usb_devno ubsa_devs[] = {
224 /* BELKIN F5U103 */
225 { USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5U103 },
226 /* BELKIN F5U120 */
227 { USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5U120 },
228 /* GoHubs GO-COM232 */
229 { USB_VENDOR_ETEK, USB_PRODUCT_ETEK_1COM },
230 /* GoHubs GO-COM232 */
231 { USB_VENDOR_GOHUBS, USB_PRODUCT_GOHUBS_GOCOM232 },
232 /* Peracom */
233 { USB_VENDOR_PERACOM, USB_PRODUCT_PERACOM_SERIAL1 },
234 };
235 #define ubsa_lookup(v, p) usb_lookup(ubsa_devs, v, p)
236
237 USB_DECLARE_DRIVER(ubsa);
238
239 USB_MATCH(ubsa)
240 {
241 USB_MATCH_START(ubsa, uaa);
242
243 if (uaa->iface != NULL)
244 return (UMATCH_NONE);
245
246 return (ubsa_lookup(uaa->vendor, uaa->product) != NULL ?
247 UMATCH_VENDOR_PRODUCT : UMATCH_NONE);
248 }
249
250 USB_ATTACH(ubsa)
251 {
252 USB_ATTACH_START(ubsa, sc, uaa);
253 usbd_device_handle dev = uaa->device;
254 usb_config_descriptor_t *cdesc;
255 usb_interface_descriptor_t *id;
256 usb_endpoint_descriptor_t *ed;
257 char devinfo[1024];
258 const char *devname = USBDEVNAME(sc->sc_dev);
259 usbd_status err;
260 struct ucom_attach_args uca;
261 int i;
262
263 usbd_devinfo(dev, 0, devinfo);
264 USB_ATTACH_SETUP;
265 printf("%s: %s\n", devname, devinfo);
266
267 sc->sc_udev = dev;
268
269 /*
270 * initialize rts, dtr variables to something
271 * different from boolean 0, 1
272 */
273 sc->sc_dtr = -1;
274 sc->sc_rts = -1;
275
276 printf("%s: %s\n", devname, devinfo);
277
278 DPRINTF(("ubsa attach: sc = %p\n", sc));
279
280 /* initialize endpoints */
281 uca.bulkin = uca.bulkout = -1;
282 sc->sc_intr_number = -1;
283 sc->sc_intr_pipe = NULL;
284
285 /* Move the device into the configured state. */
286 err = usbd_set_config_index(dev, UBSA_CONFIG_INDEX, 1);
287 if (err) {
288 printf("%s: failed to set configuration: %s\n",
289 devname, usbd_errstr(err));
290 sc->sc_dying = 1;
291 goto error;
292 }
293
294 /* get the config descriptor */
295 cdesc = usbd_get_config_descriptor(sc->sc_udev);
296
297 if (cdesc == NULL) {
298 printf("%s: failed to get configuration descriptor\n",
299 devname);
300 sc->sc_dying = 1;
301 goto error;
302 }
303
304 /* get the first interface */
305 err = usbd_device2interface_handle(dev, UBSA_IFACE_INDEX,
306 &sc->sc_iface);
307 if (err) {
308 printf("%s: failed to get interface: %s\n",
309 devname, usbd_errstr(err));
310 sc->sc_dying = 1;
311 goto error;
312 }
313
314 /* Find the endpoints */
315
316 id = usbd_get_interface_descriptor(sc->sc_iface);
317 sc->sc_iface_number = id->bInterfaceNumber;
318
319 for (i = 0; i < id->bNumEndpoints; i++) {
320 ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i);
321 if (ed == NULL) {
322 printf("%s: no endpoint descriptor for %d\n",
323 USBDEVNAME(sc->sc_dev), i);
324 sc->sc_dying = 1;
325 goto error;
326 }
327
328 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
329 UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) {
330 sc->sc_intr_number = ed->bEndpointAddress;
331 sc->sc_isize = UGETW(ed->wMaxPacketSize);
332 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
333 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
334 uca.bulkin = ed->bEndpointAddress;
335 uca.ibufsize = UGETW(ed->wMaxPacketSize);
336 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
337 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
338 uca.bulkout = ed->bEndpointAddress;
339 uca.obufsize = UGETW(ed->wMaxPacketSize);
340 }
341 }
342
343 if (sc->sc_intr_number == -1) {
344 printf("%s: Could not find interrupt in\n", devname);
345 sc->sc_dying = 1;
346 goto error;
347 }
348
349 if (uca.bulkin == -1) {
350 printf("%s: Could not find data bulk in\n", devname);
351 sc->sc_dying = 1;
352 goto error;
353 }
354
355 if (uca.bulkout == -1) {
356 printf("%s: Could not find data bulk out\n", devname);
357 sc->sc_dying = 1;
358 goto error;
359 }
360
361 uca.portno = UCOM_UNK_PORTNO;
362 /* bulkin, bulkout set above */
363 uca.ibufsizepad = uca.ibufsize;
364 uca.opkthdrlen = 0;
365 uca.device = dev;
366 uca.iface = sc->sc_iface;
367 uca.methods = &ubsa_methods;
368 uca.arg = sc;
369 uca.info = NULL;
370
371 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev,
372 USBDEV(sc->sc_dev));
373
374 DPRINTF(("ubsa: in = 0x%x, out = 0x%x, intr = 0x%x\n",
375 uca.bulkin_no, uca.bulkout_no, sc->sc_intr_number));
376
377 sc->sc_subdev = config_found_sm(self, &uca, ucomprint, ucomsubmatch);
378
379 USB_ATTACH_SUCCESS_RETURN;
380
381 error:
382 USB_ATTACH_ERROR_RETURN;
383 }
384
385 USB_DETACH(ubsa)
386 {
387 USB_DETACH_START(ubsa, sc);
388 int rv = 0;
389
390
391 DPRINTF(("ubsa_detach: sc = %p\n", sc));
392
393 if (sc->sc_intr_pipe != NULL) {
394 usbd_abort_pipe(sc->sc_intr_pipe);
395 usbd_close_pipe(sc->sc_intr_pipe);
396 free(sc->sc_intr_buf, M_USBDEV);
397 sc->sc_intr_pipe = NULL;
398 }
399
400 sc->sc_dying = 1;
401 if (sc->sc_subdev != NULL) {
402 rv = config_detach(sc->sc_subdev, flags);
403 sc->sc_subdev = NULL;
404 }
405
406 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev,
407 USBDEV(sc->sc_dev));
408
409 return (rv);
410 }
411
412 int
413 ubsa_activate(device_ptr_t self, enum devact act)
414 {
415 struct ubsa_softc *sc = (struct ubsa_softc *)self;
416 int rv = 0;
417
418 switch (act) {
419 case DVACT_ACTIVATE:
420 return (EOPNOTSUPP);
421
422 case DVACT_DEACTIVATE:
423 if (sc->sc_subdev != NULL)
424 rv = config_deactivate(sc->sc_subdev);
425 sc->sc_dying = 1;
426 break;
427 }
428 return (rv);
429 }
430
431 Static int
432 ubsa_request(struct ubsa_softc *sc, u_int8_t request, u_int16_t value)
433 {
434 usb_device_request_t req;
435 usbd_status err;
436
437 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
438 req.bRequest = request;
439 USETW(req.wValue, value);
440 USETW(req.wIndex, sc->sc_iface_number);
441 USETW(req.wLength, 0);
442
443 err = usbd_do_request(sc->sc_udev, &req, 0);
444 if (err)
445 printf("%s: ubsa_request: %s\n",
446 USBDEVNAME(sc->sc_dev), usbd_errstr(err));
447 return (err);
448 }
449
450 Static void
451 ubsa_dtr(struct ubsa_softc *sc, int onoff)
452 {
453
454 DPRINTF(("ubsa_dtr: onoff = %d\n", onoff));
455
456 if (sc->sc_dtr == onoff)
457 return;
458 sc->sc_dtr = onoff;
459
460 ubsa_request(sc, UBSA_SET_DTR, onoff ? 1 : 0);
461 }
462
463 Static void
464 ubsa_rts(struct ubsa_softc *sc, int onoff)
465 {
466
467 DPRINTF(("ubsa_rts: onoff = %d\n", onoff));
468
469 if (sc->sc_rts == onoff)
470 return;
471 sc->sc_rts = onoff;
472
473 ubsa_request(sc, UBSA_SET_RTS, onoff ? 1 : 0);
474 }
475
476 Static void
477 ubsa_break(struct ubsa_softc *sc, int onoff)
478 {
479
480 DPRINTF(("ubsa_rts: onoff = %d\n", onoff));
481
482 ubsa_request(sc, UBSA_SET_BREAK, onoff ? 1 : 0);
483 }
484
485 Static void
486 ubsa_set(void *addr, int portno, int reg, int onoff)
487 {
488 struct ubsa_softc *sc;
489
490 sc = addr;
491 switch (reg) {
492 case UCOM_SET_DTR:
493 ubsa_dtr(sc, onoff);
494 break;
495 case UCOM_SET_RTS:
496 ubsa_rts(sc, onoff);
497 break;
498 case UCOM_SET_BREAK:
499 ubsa_break(sc, onoff);
500 break;
501 default:
502 break;
503 }
504 }
505
506 Static void
507 ubsa_baudrate(struct ubsa_softc *sc, speed_t speed)
508 {
509 u_int16_t value = 0;
510
511 DPRINTF(("ubsa_baudrate: speed = %d\n", speed));
512
513 switch(speed) {
514 case B0:
515 break;
516 case B300:
517 case B600:
518 case B1200:
519 case B2400:
520 case B4800:
521 case B9600:
522 case B19200:
523 case B38400:
524 case B57600:
525 case B115200:
526 case B230400:
527 value = B230400 / speed;
528 break;
529 default:
530 printf("%s: ubsa_param: unsupported baudrate, "
531 "forcing default of 9600\n",
532 USBDEVNAME(sc->sc_dev));
533 value = B230400 / B9600;
534 break;
535 };
536
537 if (speed == B0) {
538 ubsa_flow(sc, 0, 0);
539 ubsa_dtr(sc, 0);
540 ubsa_rts(sc, 0);
541 } else
542 ubsa_request(sc, UBSA_SET_BAUDRATE, value);
543 }
544
545 Static void
546 ubsa_parity(struct ubsa_softc *sc, tcflag_t cflag)
547 {
548 int value;
549
550 DPRINTF(("ubsa_parity: cflag = 0x%x\n", cflag));
551
552 if (cflag & PARENB)
553 value = (cflag & PARODD) ? UBSA_PARITY_ODD : UBSA_PARITY_EVEN;
554 else
555 value = UBSA_PARITY_NONE;
556
557 ubsa_request(sc, UBSA_SET_PARITY, value);
558 }
559
560 Static void
561 ubsa_databits(struct ubsa_softc *sc, tcflag_t cflag)
562 {
563 int value;
564
565 DPRINTF(("ubsa_databits: cflag = 0x%x\n", cflag));
566
567 switch (cflag & CSIZE) {
568 case CS5: value = 0; break;
569 case CS6: value = 1; break;
570 case CS7: value = 2; break;
571 case CS8: value = 3; break;
572 default:
573 printf("%s: ubsa_param: unsupported databits requested, "
574 "forcing default of 8\n",
575 USBDEVNAME(sc->sc_dev));
576 value = 3;
577 }
578
579 ubsa_request(sc, UBSA_SET_DATA_BITS, value);
580 }
581
582 Static void
583 ubsa_stopbits(struct ubsa_softc *sc, tcflag_t cflag)
584 {
585 int value;
586
587 DPRINTF(("ubsa_stopbits: cflag = 0x%x\n", cflag));
588
589 value = (cflag & CSTOPB) ? 1 : 0;
590
591 ubsa_request(sc, UBSA_SET_STOP_BITS, value);
592 }
593
594 Static void
595 ubsa_flow(struct ubsa_softc *sc, tcflag_t cflag, tcflag_t iflag)
596 {
597 int value;
598
599 DPRINTF(("ubsa_flow: cflag = 0x%x, iflag = 0x%x\n", cflag, iflag));
600
601 value = 0;
602 if (cflag & CRTSCTS)
603 value |= UBSA_FLOW_OCTS | UBSA_FLOW_IRTS;
604 if (iflag & (IXON|IXOFF))
605 value |= UBSA_FLOW_OXON | UBSA_FLOW_IXON;
606
607 ubsa_request(sc, UBSA_SET_FLOW_CTRL, value);
608 }
609
610 Static int
611 ubsa_param(void *addr, int portno, struct termios *ti)
612 {
613 struct ubsa_softc *sc = addr;
614
615 DPRINTF(("ubsa_param: sc = %p\n", sc));
616
617 ubsa_baudrate(sc, ti->c_ospeed);
618 ubsa_parity(sc, ti->c_cflag);
619 ubsa_databits(sc, ti->c_cflag);
620 ubsa_stopbits(sc, ti->c_cflag);
621 ubsa_flow(sc, ti->c_cflag, ti->c_iflag);
622
623 return (0);
624 }
625
626 Static int
627 ubsa_open(void *addr, int portno)
628 {
629 struct ubsa_softc *sc = addr;
630 int err;
631
632 if (sc->sc_dying)
633 return (ENXIO);
634
635 DPRINTF(("ubsa_open: sc = %p\n", sc));
636
637 if (sc->sc_intr_number != -1 && sc->sc_intr_pipe == NULL) {
638 sc->sc_intr_buf = malloc(sc->sc_isize, M_USBDEV, M_WAITOK);
639 err = usbd_open_pipe_intr(sc->sc_intr_iface,
640 sc->sc_intr_number,
641 USBD_SHORT_XFER_OK,
642 &sc->sc_intr_pipe,
643 sc,
644 sc->sc_intr_buf,
645 sc->sc_isize,
646 ubsa_intr,
647 UBSA_INTR_INTERVAL);
648 if (err) {
649 printf("%s: cannot open interrupt pipe (addr %d)\n",
650 USBDEVNAME(sc->sc_dev),
651 sc->sc_intr_number);
652 return (EIO);
653 }
654 }
655
656 return (0);
657 }
658
659 Static void
660 ubsa_close(void *addr, int portno)
661 {
662 struct ubsa_softc *sc = addr;
663 int err;
664
665 if (sc->sc_dying)
666 return;
667
668 DPRINTF(("ubsa_close: close\n"));
669
670 if (sc->sc_intr_pipe != NULL) {
671 err = usbd_abort_pipe(sc->sc_intr_pipe);
672 if (err)
673 printf("%s: abort interrupt pipe failed: %s\n",
674 USBDEVNAME(sc->sc_dev),
675 usbd_errstr(err));
676 err = usbd_close_pipe(sc->sc_intr_pipe);
677 if (err)
678 printf("%s: close interrupt pipe failed: %s\n",
679 USBDEVNAME(sc->sc_dev),
680 usbd_errstr(err));
681 free(sc->sc_intr_buf, M_USBDEV);
682 sc->sc_intr_pipe = NULL;
683 }
684 }
685
686 Static void
687 ubsa_intr(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
688 {
689 struct ubsa_softc *sc = priv;
690 u_char *buf;
691
692 buf = sc->sc_intr_buf;
693 if (sc->sc_dying)
694 return;
695
696 if (status != USBD_NORMAL_COMPLETION) {
697 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED)
698 return;
699
700 DPRINTF(("%s: ubsa_intr: abnormal status: %s\n",
701 USBDEVNAME(sc->sc_ucom.sc_dev),
702 usbd_errstr(status)));
703 usbd_clear_endpoint_stall_async(sc->sc_intr_pipe);
704 return;
705 }
706
707 /* incidentally, Belkin adapter status bits match UART 16550 bits */
708 sc->sc_lsr = buf[2];
709 sc->sc_msr = buf[3];
710
711 DPRINTF(("%s: ubsa lsr = 0x%02x, msr = 0x%02x\n",
712 USBDEVNAME(sc->sc_ucom.sc_dev), sc->sc_lsr, sc->sc_msr));
713
714 ucom_status_change((struct ucom_softc *)sc->sc_subdev);
715 }
716
717 Static void
718 ubsa_get_status(void *addr, int portno, u_char *lsr, u_char *msr)
719 {
720 struct ubsa_softc *sc = addr;
721
722 DPRINTF(("ubsa_get_status\n"));
723
724 if (lsr != NULL)
725 *lsr = sc->sc_lsr;
726 if (msr != NULL)
727 *msr = sc->sc_msr;
728 }
Cache object: f9b8b38254ee94444735244cb045e8d9
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