1 /* $OpenBSD: ubsa.c,v 1.71 2024/09/20 02:00:46 jsg Exp $ */
2 /* $NetBSD: ubsa.c,v 1.5 2002/11/25 00:51:33 fvdl Exp $ */
3 /*-
4 * Copyright (c) 2002, Alexander Kabaev <kan.FreeBSD.org>.
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 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28 /*
29 * Copyright (c) 2001 The NetBSD Foundation, Inc.
30 * All rights reserved.
31 *
32 * This code is derived from software contributed to The NetBSD Foundation
33 * by Ichiro FUKUHARA (ichiro@ichiro.org).
34 *
35 * Redistribution and use in source and binary forms, with or without
36 * modification, are permitted provided that the following conditions
37 * are met:
38 * 1. Redistributions of source code must retain the above copyright
39 * notice, this list of conditions and the following disclaimer.
40 * 2. Redistributions in binary form must reproduce the above copyright
41 * notice, this list of conditions and the following disclaimer in the
42 * documentation and/or other materials provided with the distribution.
43 *
44 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
45 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
46 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
47 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
48 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
49 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
50 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
51 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
52 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
53 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
54 * POSSIBILITY OF SUCH DAMAGE.
55 */
56
57 #include <sys/param.h>
58 #include <sys/systm.h>
59 #include <sys/malloc.h>
60 #include <sys/device.h>
61 #include <sys/tty.h>
62
63 #include <dev/usb/usb.h>
64 #include <dev/usb/usbcdc.h>
65
66 #include <dev/usb/usbdi.h>
67 #include <dev/usb/usbdi_util.h>
68 #include <dev/usb/usbdevs.h>
69
70 #include <dev/usb/ucomvar.h>
71
72 #ifdef UBSA_DEBUG
73 int ubsadebug = 0;
74
75 #define DPRINTFN(n, x) do { if (ubsadebug > (n)) printf x; } while (0)
76 #else
77 #define DPRINTFN(n, x)
78 #endif
79 #define DPRINTF(x) DPRINTFN(0, x)
80
81 #define UBSA_MODVER 1 /* module version */
82
83 #define UBSA_CONFIG_INDEX 1
84 #define UBSA_IFACE_INDEX 0
85
86 #define UBSA_INTR_INTERVAL 100 /* ms */
87
88 #define UBSA_SET_BAUDRATE 0x00
89 #define UBSA_SET_STOP_BITS 0x01
90 #define UBSA_SET_DATA_BITS 0x02
91 #define UBSA_SET_PARITY 0x03
92 #define UBSA_SET_DTR 0x0A
93 #define UBSA_SET_RTS 0x0B
94 #define UBSA_SET_BREAK 0x0C
95 #define UBSA_SET_FLOW_CTRL 0x10
96
97 #define UBSA_PARITY_NONE 0x00
98 #define UBSA_PARITY_EVEN 0x01
99 #define UBSA_PARITY_ODD 0x02
100 #define UBSA_PARITY_MARK 0x03
101 #define UBSA_PARITY_SPACE 0x04
102
103 #define UBSA_FLOW_NONE 0x0000
104 #define UBSA_FLOW_OCTS 0x0001
105 #define UBSA_FLOW_ODSR 0x0002
106 #define UBSA_FLOW_IDSR 0x0004
107 #define UBSA_FLOW_IDTR 0x0008
108 #define UBSA_FLOW_IRTS 0x0010
109 #define UBSA_FLOW_ORTS 0x0020
110 #define UBSA_FLOW_UNKNOWN 0x0040
111 #define UBSA_FLOW_OXON 0x0080
112 #define UBSA_FLOW_IXON 0x0100
113
114 /* line status register */
115 #define UBSA_LSR_TSRE 0x40 /* Transmitter empty: byte sent */
116 #define UBSA_LSR_TXRDY 0x20 /* Transmitter buffer empty */
117 #define UBSA_LSR_BI 0x10 /* Break detected */
118 #define UBSA_LSR_FE 0x08 /* Framing error: bad stop bit */
119 #define UBSA_LSR_PE 0x04 /* Parity error */
120 #define UBSA_LSR_OE 0x02 /* Overrun, lost incoming byte */
121 #define UBSA_LSR_RXRDY 0x01 /* Byte ready in Receive Buffer */
122 #define UBSA_LSR_RCV_MASK 0x1f /* Mask for incoming data or error */
123
124 /* modem status register */
125 /* All deltas are from the last read of the MSR. */
126 #define UBSA_MSR_DCD 0x80 /* Current Data Carrier Detect */
127 #define UBSA_MSR_RI 0x40 /* Current Ring Indicator */
128 #define UBSA_MSR_DSR 0x20 /* Current Data Set Ready */
129 #define UBSA_MSR_CTS 0x10 /* Current Clear to Send */
130 #define UBSA_MSR_DDCD 0x08 /* DCD has changed state */
131 #define UBSA_MSR_TERI 0x04 /* RI has toggled low to high */
132 #define UBSA_MSR_DDSR 0x02 /* DSR has changed state */
133 #define UBSA_MSR_DCTS 0x01 /* CTS has changed state */
134
135 struct ubsa_softc {
136 struct device sc_dev; /* base device */
137 struct usbd_device *sc_udev; /* USB device */
138 struct usbd_interface *sc_iface; /* interface */
139
140 int sc_iface_number; /* interface number */
141
142 int sc_intr_number; /* interrupt number */
143 struct usbd_pipe *sc_intr_pipe; /* interrupt pipe */
144 u_char *sc_intr_buf; /* interrupt buffer */
145 int sc_isize;
146
147 u_char sc_dtr; /* current DTR state */
148 u_char sc_rts; /* current RTS state */
149
150 u_char sc_lsr; /* Local status register */
151 u_char sc_msr; /* ubsa status register */
152
153 struct device *sc_subdev; /* ucom device */
154
155 };
156
157 void ubsa_intr(struct usbd_xfer *, void *, usbd_status);
158
159 void ubsa_get_status(void *, int, u_char *, u_char *);
160 void ubsa_set(void *, int, int, int);
161 int ubsa_param(void *, int, struct termios *);
162 int ubsa_open(void *, int);
163 void ubsa_close(void *, int);
164
165 void ubsa_break(struct ubsa_softc *sc, int onoff);
166 int ubsa_request(struct ubsa_softc *, u_int8_t, u_int16_t);
167 void ubsa_dtr(struct ubsa_softc *, int);
168 void ubsa_rts(struct ubsa_softc *, int);
169 void ubsa_baudrate(struct ubsa_softc *, speed_t);
170 void ubsa_parity(struct ubsa_softc *, tcflag_t);
171 void ubsa_databits(struct ubsa_softc *, tcflag_t);
172 void ubsa_stopbits(struct ubsa_softc *, tcflag_t);
173 void ubsa_flow(struct ubsa_softc *, tcflag_t, tcflag_t);
174
175 const struct ucom_methods ubsa_methods = {
176 ubsa_get_status,
177 ubsa_set,
178 ubsa_param,
179 NULL,
180 ubsa_open,
181 ubsa_close,
182 NULL,
183 NULL
184 };
185
186 const struct usb_devno ubsa_devs[] = {
187 /* Axesstel MV100H */
188 { USB_VENDOR_AXESSTEL, USB_PRODUCT_AXESSTEL_DATAMODEM },
189 /* BELKIN F5U103 */
190 { USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5U103 },
191 /* BELKIN F5U120 */
192 { USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5U120 },
193 /* GoHubs GO-COM232 , Belkin F5U003 */
194 { USB_VENDOR_ETEK, USB_PRODUCT_ETEK_1COM },
195 /* GoHubs GO-COM232 */
196 { USB_VENDOR_GOHUBS, USB_PRODUCT_GOHUBS_GOCOM232 },
197 /* Peracom */
198 { USB_VENDOR_PERACOM, USB_PRODUCT_PERACOM_SERIAL1 },
199 /* ZTE Inc. CMDMA MSM modem */
200 { USB_VENDOR_ZTE, USB_PRODUCT_ZTE_CDMA_MSM },
201 /* ZTE Inc. AC8700 */
202 { USB_VENDOR_ZTE, USB_PRODUCT_ZTE_AC8700 },
203 };
204
205 int ubsa_match(struct device *, void *, void *);
206 void ubsa_attach(struct device *, struct device *, void *);
207 int ubsa_detach(struct device *, int);
208
209 struct cfdriver ubsa_cd = {
210 NULL, "ubsa", DV_DULL
211 };
212
213 const struct cfattach ubsa_ca = {
214 sizeof(struct ubsa_softc), ubsa_match, ubsa_attach, ubsa_detach
215 };
216
217 int
ubsa_match(struct device * parent,void * match,void * aux)218 ubsa_match(struct device *parent, void *match, void *aux)
219 {
220 struct usb_attach_arg *uaa = aux;
221
222 if (uaa->iface != NULL)
223 return (UMATCH_NONE);
224
225 return (usb_lookup(ubsa_devs, uaa->vendor, uaa->product) != NULL ?
226 UMATCH_VENDOR_PRODUCT : UMATCH_NONE);
227 }
228
229 void
ubsa_attach(struct device * parent,struct device * self,void * aux)230 ubsa_attach(struct device *parent, struct device *self, void *aux)
231 {
232 struct ubsa_softc *sc = (struct ubsa_softc *)self;
233 struct usb_attach_arg *uaa = aux;
234 struct usbd_device *dev = uaa->device;
235 usb_config_descriptor_t *cdesc;
236 usb_interface_descriptor_t *id;
237 usb_endpoint_descriptor_t *ed;
238 const char *devname = sc->sc_dev.dv_xname;
239 usbd_status err;
240 struct ucom_attach_args uca;
241 int i;
242
243 sc->sc_udev = dev;
244
245 /*
246 * initialize rts, dtr variables to something
247 * different from boolean 0, 1
248 */
249 sc->sc_dtr = -1;
250 sc->sc_rts = -1;
251
252 DPRINTF(("ubsa attach: sc = %p\n", sc));
253
254 /* initialize endpoints */
255 uca.bulkin = uca.bulkout = -1;
256 sc->sc_intr_number = -1;
257 sc->sc_intr_pipe = NULL;
258
259 /* Move the device into the configured state. */
260 err = usbd_set_config_index(dev, UBSA_CONFIG_INDEX, 1);
261 if (err) {
262 printf("%s: failed to set configuration: %s\n",
263 devname, usbd_errstr(err));
264 usbd_deactivate(sc->sc_udev);
265 goto error;
266 }
267
268 /* get the config descriptor */
269 cdesc = usbd_get_config_descriptor(sc->sc_udev);
270
271 if (cdesc == NULL) {
272 printf("%s: failed to get configuration descriptor\n",
273 devname);
274 usbd_deactivate(sc->sc_udev);
275 goto error;
276 }
277
278 /* get the first interface */
279 err = usbd_device2interface_handle(dev, UBSA_IFACE_INDEX,
280 &sc->sc_iface);
281 if (err) {
282 printf("%s: failed to get interface: %s\n",
283 devname, usbd_errstr(err));
284 usbd_deactivate(sc->sc_udev);
285 goto error;
286 }
287
288 /* Find the endpoints */
289
290 id = usbd_get_interface_descriptor(sc->sc_iface);
291 sc->sc_iface_number = id->bInterfaceNumber;
292
293 for (i = 0; i < id->bNumEndpoints; i++) {
294 ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i);
295 if (ed == NULL) {
296 printf("%s: no endpoint descriptor for %d\n",
297 sc->sc_dev.dv_xname, i);
298 usbd_deactivate(sc->sc_udev);
299 goto error;
300 }
301
302 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
303 UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) {
304 sc->sc_intr_number = ed->bEndpointAddress;
305 sc->sc_isize = UGETW(ed->wMaxPacketSize);
306 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
307 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
308 uca.bulkin = ed->bEndpointAddress;
309 uca.ibufsize = UGETW(ed->wMaxPacketSize);
310 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
311 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
312 uca.bulkout = ed->bEndpointAddress;
313 uca.obufsize = UGETW(ed->wMaxPacketSize);
314 }
315 }
316
317 if (sc->sc_intr_number == -1) {
318 printf("%s: Could not find interrupt in\n", devname);
319 usbd_deactivate(sc->sc_udev);
320 goto error;
321 }
322
323 if (uca.bulkin == -1) {
324 printf("%s: Could not find data bulk in\n", devname);
325 usbd_deactivate(sc->sc_udev);
326 goto error;
327 }
328
329 if (uca.bulkout == -1) {
330 printf("%s: Could not find data bulk out\n", devname);
331 usbd_deactivate(sc->sc_udev);
332 goto error;
333 }
334
335 uca.portno = UCOM_UNK_PORTNO;
336 /* bulkin, bulkout set above */
337 uca.ibufsizepad = uca.ibufsize;
338 uca.opkthdrlen = 0;
339 uca.device = dev;
340 uca.iface = sc->sc_iface;
341 uca.methods = &ubsa_methods;
342 uca.arg = sc;
343 uca.info = NULL;
344
345 DPRINTF(("ubsa: in = 0x%x, out = 0x%x, intr = 0x%x\n",
346 uca.bulkin, uca.bulkout, sc->sc_intr_number));
347
348 sc->sc_subdev = config_found_sm(self, &uca, ucomprint, ucomsubmatch);
349
350 error:
351 return;
352 }
353
354 int
ubsa_detach(struct device * self,int flags)355 ubsa_detach(struct device *self, int flags)
356 {
357 struct ubsa_softc *sc = (struct ubsa_softc *)self;
358 int rv = 0;
359
360
361 DPRINTF(("ubsa_detach: sc = %p\n", sc));
362
363 if (sc->sc_intr_pipe != NULL) {
364 usbd_close_pipe(sc->sc_intr_pipe);
365 free(sc->sc_intr_buf, M_USBDEV, sc->sc_isize);
366 sc->sc_intr_pipe = NULL;
367 }
368
369 if (sc->sc_subdev != NULL) {
370 rv = config_detach(sc->sc_subdev, flags);
371 sc->sc_subdev = NULL;
372 }
373
374 return (rv);
375 }
376
377 int
ubsa_request(struct ubsa_softc * sc,u_int8_t request,u_int16_t value)378 ubsa_request(struct ubsa_softc *sc, u_int8_t request, u_int16_t value)
379 {
380 usb_device_request_t req;
381 usbd_status err;
382
383 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
384 req.bRequest = request;
385 USETW(req.wValue, value);
386 USETW(req.wIndex, sc->sc_iface_number);
387 USETW(req.wLength, 0);
388
389 err = usbd_do_request(sc->sc_udev, &req, 0);
390 if (err && err != USBD_STALLED)
391 printf("%s: ubsa_request: %s\n",
392 sc->sc_dev.dv_xname, usbd_errstr(err));
393 return (err);
394 }
395
396 void
ubsa_dtr(struct ubsa_softc * sc,int onoff)397 ubsa_dtr(struct ubsa_softc *sc, int onoff)
398 {
399
400 DPRINTF(("ubsa_dtr: onoff = %d\n", onoff));
401
402 if (sc->sc_dtr == onoff)
403 return;
404 sc->sc_dtr = onoff;
405
406 ubsa_request(sc, UBSA_SET_DTR, onoff ? 1 : 0);
407 }
408
409 void
ubsa_rts(struct ubsa_softc * sc,int onoff)410 ubsa_rts(struct ubsa_softc *sc, int onoff)
411 {
412
413 DPRINTF(("ubsa_rts: onoff = %d\n", onoff));
414
415 if (sc->sc_rts == onoff)
416 return;
417 sc->sc_rts = onoff;
418
419 ubsa_request(sc, UBSA_SET_RTS, onoff ? 1 : 0);
420 }
421
422 void
ubsa_break(struct ubsa_softc * sc,int onoff)423 ubsa_break(struct ubsa_softc *sc, int onoff)
424 {
425
426 DPRINTF(("ubsa_rts: onoff = %d\n", onoff));
427
428 ubsa_request(sc, UBSA_SET_BREAK, onoff ? 1 : 0);
429 }
430
431 void
ubsa_set(void * addr,int portno,int reg,int onoff)432 ubsa_set(void *addr, int portno, int reg, int onoff)
433 {
434 struct ubsa_softc *sc;
435
436 sc = addr;
437 switch (reg) {
438 case UCOM_SET_DTR:
439 ubsa_dtr(sc, onoff);
440 break;
441 case UCOM_SET_RTS:
442 ubsa_rts(sc, onoff);
443 break;
444 case UCOM_SET_BREAK:
445 ubsa_break(sc, onoff);
446 break;
447 default:
448 break;
449 }
450 }
451
452 void
ubsa_baudrate(struct ubsa_softc * sc,speed_t speed)453 ubsa_baudrate(struct ubsa_softc *sc, speed_t speed)
454 {
455 u_int16_t value = 0;
456
457 DPRINTF(("ubsa_baudrate: speed = %d\n", speed));
458
459 switch(speed) {
460 case B0:
461 break;
462 case B300:
463 case B600:
464 case B1200:
465 case B2400:
466 case B4800:
467 case B9600:
468 case B19200:
469 case B38400:
470 case B57600:
471 case B115200:
472 case B230400:
473 value = B230400 / speed;
474 break;
475 default:
476 DPRINTF(("%s: ubsa_param: unsupported baudrate, "
477 "forcing default of 9600\n",
478 sc->sc_dev.dv_xname));
479 value = B230400 / B9600;
480 break;
481 }
482
483 if (speed == B0) {
484 ubsa_flow(sc, 0, 0);
485 ubsa_dtr(sc, 0);
486 ubsa_rts(sc, 0);
487 } else
488 ubsa_request(sc, UBSA_SET_BAUDRATE, value);
489 }
490
491 void
ubsa_parity(struct ubsa_softc * sc,tcflag_t cflag)492 ubsa_parity(struct ubsa_softc *sc, tcflag_t cflag)
493 {
494 int value;
495
496 DPRINTF(("ubsa_parity: cflag = 0x%x\n", cflag));
497
498 if (cflag & PARENB)
499 value = (cflag & PARODD) ? UBSA_PARITY_ODD : UBSA_PARITY_EVEN;
500 else
501 value = UBSA_PARITY_NONE;
502
503 ubsa_request(sc, UBSA_SET_PARITY, value);
504 }
505
506 void
ubsa_databits(struct ubsa_softc * sc,tcflag_t cflag)507 ubsa_databits(struct ubsa_softc *sc, tcflag_t cflag)
508 {
509 int value;
510
511 DPRINTF(("ubsa_databits: cflag = 0x%x\n", cflag));
512
513 switch (cflag & CSIZE) {
514 case CS5: value = 0; break;
515 case CS6: value = 1; break;
516 case CS7: value = 2; break;
517 case CS8: value = 3; break;
518 default:
519 DPRINTF(("%s: ubsa_param: unsupported databits requested, "
520 "forcing default of 8\n",
521 sc->sc_dev.dv_xname));
522 value = 3;
523 }
524
525 ubsa_request(sc, UBSA_SET_DATA_BITS, value);
526 }
527
528 void
ubsa_stopbits(struct ubsa_softc * sc,tcflag_t cflag)529 ubsa_stopbits(struct ubsa_softc *sc, tcflag_t cflag)
530 {
531 int value;
532
533 DPRINTF(("ubsa_stopbits: cflag = 0x%x\n", cflag));
534
535 value = (cflag & CSTOPB) ? 1 : 0;
536
537 ubsa_request(sc, UBSA_SET_STOP_BITS, value);
538 }
539
540 void
ubsa_flow(struct ubsa_softc * sc,tcflag_t cflag,tcflag_t iflag)541 ubsa_flow(struct ubsa_softc *sc, tcflag_t cflag, tcflag_t iflag)
542 {
543 int value;
544
545 DPRINTF(("ubsa_flow: cflag = 0x%x, iflag = 0x%x\n", cflag, iflag));
546
547 value = 0;
548 if (cflag & CRTSCTS)
549 value |= UBSA_FLOW_OCTS | UBSA_FLOW_IRTS;
550 if (iflag & (IXON|IXOFF))
551 value |= UBSA_FLOW_OXON | UBSA_FLOW_IXON;
552
553 ubsa_request(sc, UBSA_SET_FLOW_CTRL, value);
554 }
555
556 int
ubsa_param(void * addr,int portno,struct termios * ti)557 ubsa_param(void *addr, int portno, struct termios *ti)
558 {
559 struct ubsa_softc *sc = addr;
560
561 DPRINTF(("ubsa_param: sc = %p\n", sc));
562
563 ubsa_baudrate(sc, ti->c_ospeed);
564 ubsa_parity(sc, ti->c_cflag);
565 ubsa_databits(sc, ti->c_cflag);
566 ubsa_stopbits(sc, ti->c_cflag);
567 ubsa_flow(sc, ti->c_cflag, ti->c_iflag);
568
569 return (0);
570 }
571
572 int
ubsa_open(void * addr,int portno)573 ubsa_open(void *addr, int portno)
574 {
575 struct ubsa_softc *sc = addr;
576 int err;
577
578 if (usbd_is_dying(sc->sc_udev))
579 return (ENXIO);
580
581 DPRINTF(("ubsa_open: sc = %p\n", sc));
582
583 if (sc->sc_intr_number != -1 && sc->sc_intr_pipe == NULL) {
584 sc->sc_intr_buf = malloc(sc->sc_isize, M_USBDEV, M_WAITOK);
585 err = usbd_open_pipe_intr(sc->sc_iface,
586 sc->sc_intr_number,
587 USBD_SHORT_XFER_OK,
588 &sc->sc_intr_pipe,
589 sc,
590 sc->sc_intr_buf,
591 sc->sc_isize,
592 ubsa_intr,
593 UBSA_INTR_INTERVAL);
594 if (err) {
595 printf("%s: cannot open interrupt pipe (addr %d)\n",
596 sc->sc_dev.dv_xname,
597 sc->sc_intr_number);
598 return (EIO);
599 }
600 }
601
602 return (0);
603 }
604
605 void
ubsa_close(void * addr,int portno)606 ubsa_close(void *addr, int portno)
607 {
608 struct ubsa_softc *sc = addr;
609 int err;
610
611 if (usbd_is_dying(sc->sc_udev))
612 return;
613
614 DPRINTF(("ubsa_close: close\n"));
615
616 if (sc->sc_intr_pipe != NULL) {
617 err = usbd_close_pipe(sc->sc_intr_pipe);
618 if (err)
619 printf("%s: close interrupt pipe failed: %s\n",
620 sc->sc_dev.dv_xname,
621 usbd_errstr(err));
622 free(sc->sc_intr_buf, M_USBDEV, sc->sc_isize);
623 sc->sc_intr_pipe = NULL;
624 }
625 }
626
627 void
ubsa_intr(struct usbd_xfer * xfer,void * priv,usbd_status status)628 ubsa_intr(struct usbd_xfer *xfer, void *priv, usbd_status status)
629 {
630 struct ubsa_softc *sc = priv;
631 u_char *buf;
632 struct usb_cdc_notification *cdcbuf;
633
634 buf = sc->sc_intr_buf;
635 cdcbuf = (struct usb_cdc_notification *)sc->sc_intr_buf;
636 if (usbd_is_dying(sc->sc_udev))
637 return;
638
639 if (status != USBD_NORMAL_COMPLETION) {
640 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED)
641 return;
642
643 DPRINTF(("%s: ubsa_intr: abnormal status: %s\n",
644 sc->sc_dev.dv_xname, usbd_errstr(status)));
645 usbd_clear_endpoint_stall_async(sc->sc_intr_pipe);
646 return;
647 }
648
649 #if 1 /* test */
650 if (cdcbuf->bmRequestType == UCDC_NOTIFICATION) {
651 printf("%s: this device is using CDC notify message in"
652 " intr pipe.\n"
653 "Please send your dmesg to <bugs@openbsd.org>, thanks.\n",
654 sc->sc_dev.dv_xname);
655 printf("%s: intr buffer 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n",
656 sc->sc_dev.dv_xname,
657 buf[0], buf[1], buf[2], buf[3], buf[4], buf[5], buf[6]);
658
659 /* check the buffer data */
660 if (cdcbuf->bNotification == UCDC_N_SERIAL_STATE)
661 printf("%s:notify serial state, len=%d, data=0x%02x\n",
662 sc->sc_dev.dv_xname,
663 UGETW(cdcbuf->wLength), cdcbuf->data[0]);
664 }
665 #endif
666
667 /* incidentally, Belkin adapter status bits match UART 16550 bits */
668 sc->sc_lsr = buf[2];
669 sc->sc_msr = buf[3];
670
671 DPRINTF(("%s: ubsa lsr = 0x%02x, msr = 0x%02x\n",
672 sc->sc_dev.dv_xname, sc->sc_lsr, sc->sc_msr));
673
674 ucom_status_change((struct ucom_softc *)sc->sc_subdev);
675 }
676
677 void
ubsa_get_status(void * addr,int portno,u_char * lsr,u_char * msr)678 ubsa_get_status(void *addr, int portno, u_char *lsr, u_char *msr)
679 {
680 struct ubsa_softc *sc = addr;
681
682 DPRINTF(("ubsa_get_status\n"));
683
684 if (lsr != NULL)
685 *lsr = sc->sc_lsr;
686 if (msr != NULL)
687 *msr = sc->sc_msr;
688 }
689