FreeBSD/Linux Kernel Cross Reference
sys/dev/usb/ubsa.c
1 /*-
2 * Copyright (c) 2002, Alexander Kabaev <kan.FreeBSD.org>.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD: releng/7.3/sys/dev/usb/ubsa.c 190268 2009-03-22 16:27:14Z n_hibma $");
29 /*-
30 * Copyright (c) 2001 The NetBSD Foundation, Inc.
31 * All rights reserved.
32 *
33 * This code is derived from software contributed to The NetBSD Foundation
34 * by Ichiro FUKUHARA (ichiro@ichiro.org).
35 *
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
38 * are met:
39 * 1. Redistributions of source code must retain the above copyright
40 * notice, this list of conditions and the following disclaimer.
41 * 2. Redistributions in binary form must reproduce the above copyright
42 * notice, this list of conditions and the following disclaimer in the
43 * documentation and/or other materials provided with the distribution.
44 * 3. All advertising materials mentioning features or use of this software
45 * must display the following acknowledgement:
46 * This product includes software developed by the NetBSD
47 * Foundation, Inc. and its contributors.
48 * 4. Neither the name of The NetBSD Foundation nor the names of its
49 * contributors may be used to endorse or promote products derived
50 * from this software without specific prior written permission.
51 *
52 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
53 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
54 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
55 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
56 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
57 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
58 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
59 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
60 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
61 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
62 * POSSIBILITY OF SUCH DAMAGE.
63 */
64
65 #include <sys/param.h>
66 #include <sys/systm.h>
67 #include <sys/kernel.h>
68 #include <sys/malloc.h>
69 #include <sys/module.h>
70 #include <sys/bus.h>
71 #include <sys/ioccom.h>
72 #include <sys/fcntl.h>
73 #include <sys/taskqueue.h>
74 #include <sys/conf.h>
75 #include <sys/tty.h>
76 #include <sys/file.h>
77 #include <sys/selinfo.h>
78 #include <sys/proc.h>
79 #include <sys/poll.h>
80 #include <sys/sysctl.h>
81
82 #include <dev/usb/usb.h>
83 #include <dev/usb/usbcdc.h>
84
85 #include <dev/usb/usbdi.h>
86 #include <dev/usb/usbdi_util.h>
87 #include "usbdevs.h"
88 #include <dev/usb/usb_quirks.h>
89
90 #include <dev/usb/ucomvar.h>
91
92 #ifdef USB_DEBUG
93 static int ubsadebug = 0;
94 SYSCTL_NODE(_hw_usb, OID_AUTO, ubsa, CTLFLAG_RW, 0, "USB ubsa");
95 SYSCTL_INT(_hw_usb_ubsa, OID_AUTO, debug, CTLFLAG_RW,
96 &ubsadebug, 0, "ubsa debug level");
97
98 #define DPRINTFN(n, x) do { \
99 if (ubsadebug > (n)) \
100 printf x; \
101 } while (0)
102 #else
103 #define DPRINTFN(n, x)
104 #endif
105 #define DPRINTF(x) DPRINTFN(0, x)
106
107 #define UBSA_MODVER 1 /* module version */
108
109 #define UBSA_CONFIG_INDEX 1
110 #define UBSA_IFACE_INDEX 0
111
112 #define UBSA_INTR_INTERVAL 100 /* ms */
113
114 #define UBSA_SET_BAUDRATE 0x00
115 #define UBSA_SET_STOP_BITS 0x01
116 #define UBSA_SET_DATA_BITS 0x02
117 #define UBSA_SET_PARITY 0x03
118 #define UBSA_SET_DTR 0x0A
119 #define UBSA_SET_RTS 0x0B
120 #define UBSA_SET_BREAK 0x0C
121 #define UBSA_SET_FLOW_CTRL 0x10
122
123 #define UBSA_PARITY_NONE 0x00
124 #define UBSA_PARITY_EVEN 0x01
125 #define UBSA_PARITY_ODD 0x02
126 #define UBSA_PARITY_MARK 0x03
127 #define UBSA_PARITY_SPACE 0x04
128
129 #define UBSA_FLOW_NONE 0x0000
130 #define UBSA_FLOW_OCTS 0x0001
131 #define UBSA_FLOW_ODSR 0x0002
132 #define UBSA_FLOW_IDSR 0x0004
133 #define UBSA_FLOW_IDTR 0x0008
134 #define UBSA_FLOW_IRTS 0x0010
135 #define UBSA_FLOW_ORTS 0x0020
136 #define UBSA_FLOW_UNKNOWN 0x0040
137 #define UBSA_FLOW_OXON 0x0080
138 #define UBSA_FLOW_IXON 0x0100
139
140 /* line status register */
141 #define UBSA_LSR_TSRE 0x40 /* Transmitter empty: byte sent */
142 #define UBSA_LSR_TXRDY 0x20 /* Transmitter buffer empty */
143 #define UBSA_LSR_BI 0x10 /* Break detected */
144 #define UBSA_LSR_FE 0x08 /* Framing error: bad stop bit */
145 #define UBSA_LSR_PE 0x04 /* Parity error */
146 #define UBSA_LSR_OE 0x02 /* Overrun, lost incoming byte */
147 #define UBSA_LSR_RXRDY 0x01 /* Byte ready in Receive Buffer */
148 #define UBSA_LSR_RCV_MASK 0x1f /* Mask for incoming data or error */
149
150 /* modem status register */
151 /* All deltas are from the last read of the MSR. */
152 #define UBSA_MSR_DCD 0x80 /* Current Data Carrier Detect */
153 #define UBSA_MSR_RI 0x40 /* Current Ring Indicator */
154 #define UBSA_MSR_DSR 0x20 /* Current Data Set Ready */
155 #define UBSA_MSR_CTS 0x10 /* Current Clear to Send */
156 #define UBSA_MSR_DDCD 0x08 /* DCD has changed state */
157 #define UBSA_MSR_TERI 0x04 /* RI has toggled low to high */
158 #define UBSA_MSR_DDSR 0x02 /* DSR has changed state */
159 #define UBSA_MSR_DCTS 0x01 /* CTS has changed state */
160
161 struct ubsa_softc {
162 struct ucom_softc sc_ucom;
163
164 int sc_iface_number; /* interface number */
165
166 usbd_interface_handle sc_intr_iface; /* interrupt interface */
167 int sc_intr_number; /* interrupt number */
168 usbd_pipe_handle sc_intr_pipe; /* interrupt pipe */
169 u_char *sc_intr_buf; /* interrupt buffer */
170 int sc_isize;
171
172 u_char sc_dtr; /* current DTR state */
173 u_char sc_rts; /* current RTS state */
174
175 u_char sc_lsr; /* Local status register */
176 u_char sc_msr; /* ubsa status register */
177 struct task sc_task;
178 };
179
180 static void ubsa_intr(usbd_xfer_handle, usbd_private_handle, usbd_status);
181 static void ubsa_notify(void *, int count);
182
183 static void ubsa_get_status(void *, int, u_char *, u_char *);
184 static void ubsa_set(void *, int, int, int);
185 static int ubsa_param(void *, int, struct termios *);
186 static int ubsa_open(void *, int);
187 static void ubsa_close(void *, int);
188
189 static int ubsa_request(struct ubsa_softc *, u_int8_t, u_int16_t);
190 static void ubsa_dtr(struct ubsa_softc *, int);
191 static void ubsa_rts(struct ubsa_softc *, int);
192 static void ubsa_baudrate(struct ubsa_softc *, speed_t);
193 static void ubsa_parity(struct ubsa_softc *, tcflag_t);
194 static void ubsa_databits(struct ubsa_softc *, tcflag_t);
195 static void ubsa_stopbits(struct ubsa_softc *, tcflag_t);
196 static void ubsa_flow(struct ubsa_softc *, tcflag_t, tcflag_t);
197
198 struct ucom_callback ubsa_callback = {
199 ubsa_get_status,
200 ubsa_set,
201 ubsa_param,
202 NULL,
203 ubsa_open,
204 ubsa_close,
205 NULL,
206 NULL
207 };
208
209 static const struct ubsa_product {
210 uint16_t vendor;
211 uint16_t product;
212 } ubsa_products [] = {
213 /* AnyData ADU-500A */
214 { USB_VENDOR_ANYDATA, USB_PRODUCT_ANYDATA_ADU_500A },
215 /* AnyData ADU-E100A/H */
216 { USB_VENDOR_ANYDATA, USB_PRODUCT_ANYDATA_ADU_E100X },
217 /* Axesstel MV100H */
218 { USB_VENDOR_AXESSTEL, USB_PRODUCT_AXESSTEL_DATAMODEM },
219 /* BELKIN F5U103 */
220 { USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5U103 },
221 /* BELKIN F5U120 */
222 { USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5U120 },
223 /* GoHubs GO-COM232 */
224 { USB_VENDOR_ETEK, USB_PRODUCT_ETEK_1COM },
225 /* GoHubs GO-COM232 */
226 { USB_VENDOR_GOHUBS, USB_PRODUCT_GOHUBS_GOCOM232 },
227 /* Peracom */
228 { USB_VENDOR_PERACOM, USB_PRODUCT_PERACOM_SERIAL1 },
229 { 0, 0 }
230 };
231
232 static device_probe_t ubsa_match;
233 static device_attach_t ubsa_attach;
234 static device_detach_t ubsa_detach;
235
236 static device_method_t ubsa_methods[] = {
237 /* Device interface */
238 DEVMETHOD(device_probe, ubsa_match),
239 DEVMETHOD(device_attach, ubsa_attach),
240 DEVMETHOD(device_detach, ubsa_detach),
241 { 0, 0 }
242 };
243
244 static driver_t ubsa_driver = {
245 "ucom",
246 ubsa_methods,
247 sizeof (struct ubsa_softc)
248 };
249
250 DRIVER_MODULE(ubsa, uhub, ubsa_driver, ucom_devclass, usbd_driver_load, 0);
251 MODULE_DEPEND(ubsa, usb, 1, 1, 1);
252 MODULE_DEPEND(ubsa, ucom, UCOM_MINVER, UCOM_PREFVER, UCOM_MAXVER);
253 MODULE_VERSION(ubsa, UBSA_MODVER);
254
255 static int
256 ubsa_match(device_t self)
257 {
258 struct usb_attach_arg *uaa = device_get_ivars(self);
259 int i;
260
261 if (uaa->iface != NULL)
262 return (UMATCH_NONE);
263
264 for (i = 0; ubsa_products[i].vendor != 0; i++) {
265 if (ubsa_products[i].vendor == uaa->vendor &&
266 ubsa_products[i].product == uaa->product) {
267 return (UMATCH_VENDOR_PRODUCT);
268 }
269 }
270 return (UMATCH_NONE);
271 }
272
273 static int
274 ubsa_attach(device_t self)
275 {
276 struct ubsa_softc *sc = device_get_softc(self);
277 struct usb_attach_arg *uaa = device_get_ivars(self);
278 usbd_device_handle dev;
279 struct ucom_softc *ucom;
280 usb_config_descriptor_t *cdesc;
281 usb_interface_descriptor_t *id;
282 usb_endpoint_descriptor_t *ed;
283 usbd_status err;
284 int i;
285
286 dev = uaa->device;
287 ucom = &sc->sc_ucom;
288
289 /*
290 * initialize rts, dtr variables to something
291 * different from boolean 0, 1
292 */
293 sc->sc_dtr = -1;
294 sc->sc_rts = -1;
295
296 ucom->sc_dev = self;
297 ucom->sc_udev = dev;
298 ucom->sc_iface = uaa->iface;
299
300 DPRINTF(("ubsa attach: sc = %p\n", sc));
301
302 /* initialize endpoints */
303 ucom->sc_bulkin_no = ucom->sc_bulkout_no = -1;
304 sc->sc_intr_number = -1;
305 sc->sc_intr_pipe = NULL;
306
307 /* Move the device into the configured state. */
308 err = usbd_set_config_index(dev, UBSA_CONFIG_INDEX, 1);
309 if (err) {
310 device_printf(ucom->sc_dev, "failed to set configuration: %s\n",
311 usbd_errstr(err));
312 ucom->sc_dying = 1;
313 goto error;
314 }
315
316 /* get the config descriptor */
317 cdesc = usbd_get_config_descriptor(ucom->sc_udev);
318
319 if (cdesc == NULL) {
320 device_printf(ucom->sc_dev,
321 "failed to get configuration descriptor\n");
322 ucom->sc_dying = 1;
323 goto error;
324 }
325
326 /* get the first interface */
327 err = usbd_device2interface_handle(dev, UBSA_IFACE_INDEX,
328 &ucom->sc_iface);
329 if (err) {
330 device_printf(ucom->sc_dev, "failed to get interface: %s\n",
331 usbd_errstr(err));
332 ucom->sc_dying = 1;
333 goto error;
334 }
335
336 /* Find the endpoints */
337
338 id = usbd_get_interface_descriptor(ucom->sc_iface);
339 sc->sc_iface_number = id->bInterfaceNumber;
340
341 for (i = 0; i < id->bNumEndpoints; i++) {
342 ed = usbd_interface2endpoint_descriptor(ucom->sc_iface, i);
343 if (ed == NULL) {
344 device_printf(ucom->sc_dev,
345 "no endpoint descriptor for %d\n", i);
346 ucom->sc_dying = 1;
347 goto error;
348 }
349
350 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
351 UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) {
352 sc->sc_intr_number = ed->bEndpointAddress;
353 sc->sc_isize = UGETW(ed->wMaxPacketSize);
354 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
355 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
356 ucom->sc_bulkin_no = ed->bEndpointAddress;
357 ucom->sc_ibufsize = UGETW(ed->wMaxPacketSize);
358 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
359 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
360 ucom->sc_bulkout_no = ed->bEndpointAddress;
361 ucom->sc_obufsize = UGETW(ed->wMaxPacketSize);
362 }
363 }
364
365 if (sc->sc_intr_number == -1) {
366 device_printf(ucom->sc_dev, "Could not find interrupt in\n");
367 ucom->sc_dying = 1;
368 goto error;
369 }
370
371 /* keep interface for interrupt */
372 sc->sc_intr_iface = ucom->sc_iface;
373
374 if (ucom->sc_bulkin_no == -1) {
375 device_printf(ucom->sc_dev, "Could not find data bulk in\n");
376 ucom->sc_dying = 1;
377 goto error;
378 }
379
380 if (ucom->sc_bulkout_no == -1) {
381 device_printf(ucom->sc_dev, "Could not find data bulk out\n");
382 ucom->sc_dying = 1;
383 goto error;
384 }
385
386 ucom->sc_parent = sc;
387 ucom->sc_portno = UCOM_UNK_PORTNO;
388 /* bulkin, bulkout set above */
389 ucom->sc_ibufsize = 1024;
390 ucom->sc_obufsize = 1024;
391 ucom->sc_ibufsizepad = ucom->sc_ibufsize;
392 ucom->sc_opkthdrlen = 0;
393 ucom->sc_callback = &ubsa_callback;
394
395 DPRINTF(("ubsa: in = 0x%x, out = 0x%x, intr = 0x%x\n",
396 ucom->sc_bulkin_no, ucom->sc_bulkout_no, sc->sc_intr_number));
397
398 TASK_INIT(&sc->sc_task, 0, ubsa_notify, sc);
399 ucom_attach(ucom);
400 return 0;
401
402 error:
403 return ENXIO;
404 }
405
406 static int
407 ubsa_detach(device_t self)
408 {
409 struct ubsa_softc *sc = device_get_softc(self);
410 int rv;
411
412 DPRINTF(("ubsa_detach: sc = %p\n", sc));
413
414 if (sc->sc_intr_pipe != NULL) {
415 usbd_abort_pipe(sc->sc_intr_pipe);
416 usbd_close_pipe(sc->sc_intr_pipe);
417 free(sc->sc_intr_buf, M_USBDEV);
418 sc->sc_intr_pipe = NULL;
419 }
420
421 sc->sc_ucom.sc_dying = 1;
422 #if 0
423 taskqueue_drain(taskqueue_swi_giant);
424 #endif
425 rv = ucom_detach(&sc->sc_ucom);
426
427 return (rv);
428 }
429
430 static int
431 ubsa_request(struct ubsa_softc *sc, u_int8_t request, u_int16_t value)
432 {
433 usb_device_request_t req;
434 usbd_status err;
435
436 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
437 req.bRequest = request;
438 USETW(req.wValue, value);
439 USETW(req.wIndex, sc->sc_iface_number);
440 USETW(req.wLength, 0);
441
442 err = usbd_do_request(sc->sc_ucom.sc_udev, &req, 0);
443 if (err)
444 device_printf(sc->sc_ucom.sc_dev, "ubsa_request(%x, %x): %s\n",
445 request, value, usbd_errstr(err));
446 return (err);
447 }
448
449 static void
450 ubsa_dtr(struct ubsa_softc *sc, int onoff)
451 {
452
453 DPRINTF(("ubsa_dtr: onoff = %d\n", onoff));
454
455 if (sc->sc_dtr == onoff)
456 return;
457 sc->sc_dtr = onoff;
458
459 ubsa_request(sc, UBSA_SET_DTR, onoff ? 1 : 0);
460 }
461
462 static void
463 ubsa_rts(struct ubsa_softc *sc, int onoff)
464 {
465
466 DPRINTF(("ubsa_rts: onoff = %d\n", onoff));
467
468 if (sc->sc_rts == onoff)
469 return;
470 sc->sc_rts = onoff;
471
472 ubsa_request(sc, UBSA_SET_RTS, onoff ? 1 : 0);
473 }
474
475 static void
476 ubsa_break(struct ubsa_softc *sc, int onoff)
477 {
478
479 DPRINTF(("ubsa_rts: onoff = %d\n", onoff));
480
481 ubsa_request(sc, UBSA_SET_BREAK, onoff ? 1 : 0);
482 }
483
484 static void
485 ubsa_set(void *addr, int portno, int reg, int onoff)
486 {
487 struct ubsa_softc *sc;
488
489 sc = addr;
490 switch (reg) {
491 case UCOM_SET_DTR:
492 ubsa_dtr(sc, onoff);
493 break;
494 case UCOM_SET_RTS:
495 ubsa_rts(sc, onoff);
496 break;
497 case UCOM_SET_BREAK:
498 ubsa_break(sc, onoff);
499 break;
500 default:
501 break;
502 }
503 }
504
505 static void
506 ubsa_baudrate(struct ubsa_softc *sc, speed_t speed)
507 {
508 u_int16_t value = 0;
509
510 DPRINTF(("ubsa_baudrate: speed = %d\n", speed));
511
512 switch(speed) {
513 case B0:
514 break;
515 case B300:
516 case B600:
517 case B1200:
518 case B2400:
519 case B4800:
520 case B9600:
521 case B19200:
522 case B38400:
523 case B57600:
524 case B115200:
525 case B230400:
526 value = B230400 / speed;
527 break;
528 default:
529 device_printf(sc->sc_ucom.sc_dev,
530 "ubsa_param: unsupported baud, forcing default of 9600\n");
531 value = B230400 / B9600;
532 break;
533 };
534
535 if (speed == B0) {
536 ubsa_flow(sc, 0, 0);
537 ubsa_dtr(sc, 0);
538 ubsa_rts(sc, 0);
539 } else
540 ubsa_request(sc, UBSA_SET_BAUDRATE, value);
541 }
542
543 static void
544 ubsa_parity(struct ubsa_softc *sc, tcflag_t cflag)
545 {
546 int value;
547
548 DPRINTF(("ubsa_parity: cflag = 0x%x\n", cflag));
549
550 if (cflag & PARENB)
551 value = (cflag & PARODD) ? UBSA_PARITY_ODD : UBSA_PARITY_EVEN;
552 else
553 value = UBSA_PARITY_NONE;
554
555 ubsa_request(sc, UBSA_SET_PARITY, value);
556 }
557
558 static void
559 ubsa_databits(struct ubsa_softc *sc, tcflag_t cflag)
560 {
561 int value;
562
563 DPRINTF(("ubsa_databits: cflag = 0x%x\n", cflag));
564
565 switch (cflag & CSIZE) {
566 case CS5: value = 0; break;
567 case CS6: value = 1; break;
568 case CS7: value = 2; break;
569 case CS8: value = 3; break;
570 default:
571 device_printf(sc->sc_ucom.sc_dev,
572 "ubsa_param: unsupported databits requested, "
573 "forcing default of 8\n");
574 value = 3;
575 }
576
577 ubsa_request(sc, UBSA_SET_DATA_BITS, value);
578 }
579
580 static void
581 ubsa_stopbits(struct ubsa_softc *sc, tcflag_t cflag)
582 {
583 int value;
584
585 DPRINTF(("ubsa_stopbits: cflag = 0x%x\n", cflag));
586
587 value = (cflag & CSTOPB) ? 1 : 0;
588
589 ubsa_request(sc, UBSA_SET_STOP_BITS, value);
590 }
591
592 static void
593 ubsa_flow(struct ubsa_softc *sc, tcflag_t cflag, tcflag_t iflag)
594 {
595 int value;
596
597 DPRINTF(("ubsa_flow: cflag = 0x%x, iflag = 0x%x\n", cflag, iflag));
598
599 value = 0;
600 if (cflag & CRTSCTS)
601 value |= UBSA_FLOW_OCTS | UBSA_FLOW_IRTS;
602 if (iflag & (IXON|IXOFF))
603 value |= UBSA_FLOW_OXON | UBSA_FLOW_IXON;
604
605 ubsa_request(sc, UBSA_SET_FLOW_CTRL, value);
606 }
607
608 static int
609 ubsa_param(void *addr, int portno, struct termios *ti)
610 {
611 struct ubsa_softc *sc;
612
613 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;
630 int err;
631
632 sc = addr;
633 if (sc->sc_ucom.sc_dying)
634 return (ENXIO);
635
636 DPRINTF(("ubsa_open: sc = %p\n", sc));
637
638 if (sc->sc_intr_number != -1 && sc->sc_intr_pipe == NULL) {
639 sc->sc_intr_buf = malloc(sc->sc_isize, M_USBDEV, M_WAITOK);
640 err = usbd_open_pipe_intr(sc->sc_intr_iface,
641 sc->sc_intr_number,
642 USBD_SHORT_XFER_OK,
643 &sc->sc_intr_pipe,
644 sc,
645 sc->sc_intr_buf,
646 sc->sc_isize,
647 ubsa_intr,
648 UBSA_INTR_INTERVAL);
649 if (err) {
650 device_printf(sc->sc_ucom.sc_dev,
651 "cannot open interrupt pipe (addr %d)\n",
652 sc->sc_intr_number);
653 return (EIO);
654 }
655 }
656
657 return (0);
658 }
659
660 static void
661 ubsa_close(void *addr, int portno)
662 {
663 struct ubsa_softc *sc;
664 int err;
665
666 sc = addr;
667 if (sc->sc_ucom.sc_dying)
668 return;
669
670 DPRINTF(("ubsa_close: close\n"));
671
672 if (sc->sc_intr_pipe != NULL) {
673 err = usbd_abort_pipe(sc->sc_intr_pipe);
674 if (err)
675 device_printf(sc->sc_ucom.sc_dev,
676 "abort interrupt pipe failed: %s\n",
677 usbd_errstr(err));
678 err = usbd_close_pipe(sc->sc_intr_pipe);
679 if (err)
680 device_printf(sc->sc_ucom.sc_dev,
681 "close interrupt pipe failed: %s\n",
682 usbd_errstr(err));
683 free(sc->sc_intr_buf, M_USBDEV);
684 sc->sc_intr_pipe = NULL;
685 }
686 }
687
688 static void
689 ubsa_intr(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
690 {
691 struct ubsa_softc *sc;
692 u_char *buf;
693
694 sc = priv;
695 buf = sc->sc_intr_buf;
696 if (sc->sc_ucom.sc_dying)
697 return;
698
699 if (status != USBD_NORMAL_COMPLETION) {
700 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED)
701 return;
702
703 DPRINTF(("%s: ubsa_intr: abnormal status: %s\n",
704 device_get_nameunit(sc->sc_ucom.sc_dev),
705 usbd_errstr(status)));
706 usbd_clear_endpoint_stall_async(sc->sc_intr_pipe);
707 return;
708 }
709
710 /* incidentally, Belkin adapter status bits match UART 16550 bits */
711 sc->sc_lsr = buf[2];
712 sc->sc_msr = buf[3];
713
714 DPRINTF(("%s: ubsa lsr = 0x%02x, msr = 0x%02x\n",
715 device_get_nameunit(sc->sc_ucom.sc_dev), sc->sc_lsr, sc->sc_msr));
716
717 taskqueue_enqueue(taskqueue_swi_giant, &sc->sc_task);
718 }
719
720 /* Handle delayed events. */
721 static void
722 ubsa_notify(void *arg, int count)
723 {
724 struct ubsa_softc *sc;
725
726 sc = arg;
727 ucom_status_change(&sc->sc_ucom);
728 }
729
730 static void
731 ubsa_get_status(void *addr, int portno, u_char *lsr, u_char *msr)
732 {
733 struct ubsa_softc *sc;
734
735 DPRINTF(("ubsa_get_status\n"));
736
737 sc = addr;
738 if (lsr != NULL)
739 *lsr = sc->sc_lsr;
740 if (msr != NULL)
741 *msr = sc->sc_msr;
742 }
Cache object: fa0e150ba9cffa95ac959d2e5bcdc5af
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