Line data Source code
1 : /* $OpenBSD: umodem.c,v 1.64 2018/08/29 20:18:14 kettenis Exp $ */
2 : /* $NetBSD: umodem.c,v 1.45 2002/09/23 05:51:23 simonb Exp $ */
3 :
4 : /*
5 : * Copyright (c) 1998 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 : /*
35 : * Comm Class spec: http://www.usb.org/developers/devclass_docs/usbccs10.pdf
36 : * http://www.usb.org/developers/devclass_docs/usbcdc11.pdf
37 : */
38 :
39 : /*
40 : * TODO:
41 : * - Add error recovery in various places; the big problem is what
42 : * to do in a callback if there is an error.
43 : * - Implement a Call Device for modems without multiplexed commands.
44 : *
45 : */
46 :
47 : #include <sys/param.h>
48 : #include <sys/systm.h>
49 : #include <sys/kernel.h>
50 : #include <sys/conf.h>
51 : #include <sys/tty.h>
52 : #include <sys/selinfo.h>
53 : #include <sys/device.h>
54 : #include <sys/poll.h>
55 :
56 : #include <dev/usb/usb.h>
57 : #include <dev/usb/usbcdc.h>
58 :
59 : #include <dev/usb/usbdi.h>
60 : #include <dev/usb/usbdevs.h>
61 : #include <dev/usb/usb_quirks.h>
62 :
63 : #include <dev/usb/ucomvar.h>
64 :
65 : #ifdef UMODEM_DEBUG
66 : #define DPRINTFN(n, x) do { if (umodemdebug > (n)) printf x; } while (0)
67 : int umodemdebug = 0;
68 : #else
69 : #define DPRINTFN(n, x)
70 : #endif
71 : #define DPRINTF(x) DPRINTFN(0, x)
72 :
73 : /*
74 : * These are the maximum number of bytes transferred per frame.
75 : * Buffers are this large to deal with high speed wireless devices.
76 : * Capped at 1024 as ttymalloc() is limited to this amount.
77 : */
78 : #define UMODEMIBUFSIZE 1024
79 : #define UMODEMOBUFSIZE 1024
80 :
81 : struct umodem_softc {
82 : struct device sc_dev; /* base device */
83 :
84 : struct usbd_device *sc_udev; /* USB device */
85 :
86 : int sc_ctl_iface_no;
87 : struct usbd_interface *sc_ctl_iface; /* control interface */
88 : struct usbd_interface *sc_data_iface; /* data interface */
89 :
90 : int sc_cm_cap; /* CM capabilities */
91 : int sc_acm_cap; /* ACM capabilities */
92 :
93 : int sc_cm_over_data;
94 :
95 : struct usb_cdc_line_state sc_line_state;/* current line state */
96 : u_char sc_dtr; /* current DTR state */
97 : u_char sc_rts; /* current RTS state */
98 :
99 : struct device *sc_subdev; /* ucom device */
100 :
101 : int sc_ctl_notify; /* Notification endpoint */
102 : struct usbd_pipe *sc_notify_pipe; /* Notification pipe */
103 : struct usb_cdc_notification sc_notify_buf; /* Notification structure */
104 : u_char sc_lsr; /* Local status register */
105 : u_char sc_msr; /* Modem status register */
106 : };
107 :
108 : usbd_status umodem_set_comm_feature(struct umodem_softc *sc,
109 : int feature, int state);
110 : usbd_status umodem_set_line_coding(struct umodem_softc *sc,
111 : struct usb_cdc_line_state *state);
112 :
113 : void umodem_get_status(void *, int portno, u_char *lsr, u_char *msr);
114 : void umodem_set(void *, int, int, int);
115 : void umodem_dtr(struct umodem_softc *, int);
116 : void umodem_rts(struct umodem_softc *, int);
117 : void umodem_break(struct umodem_softc *, int);
118 : void umodem_set_line_state(struct umodem_softc *);
119 : int umodem_param(void *, int, struct termios *);
120 : int umodem_open(void *, int portno);
121 : void umodem_close(void *, int portno);
122 : void umodem_intr(struct usbd_xfer *, void *, usbd_status);
123 :
124 : struct ucom_methods umodem_methods = {
125 : umodem_get_status,
126 : umodem_set,
127 : umodem_param,
128 : NULL,
129 : umodem_open,
130 : umodem_close,
131 : NULL,
132 : NULL,
133 : };
134 :
135 : int umodem_match(struct device *, void *, void *);
136 : void umodem_attach(struct device *, struct device *, void *);
137 : int umodem_detach(struct device *, int);
138 :
139 : void umodem_get_caps(struct usb_attach_arg *, int, int *, int *, int *);
140 :
141 : struct cfdriver umodem_cd = {
142 : NULL, "umodem", DV_DULL
143 : };
144 :
145 : const struct cfattach umodem_ca = {
146 : sizeof(struct umodem_softc), umodem_match, umodem_attach, umodem_detach
147 : };
148 :
149 : void
150 0 : umodem_get_caps(struct usb_attach_arg *uaa, int ctl_iface_no,
151 : int *data_iface_idx, int *cm_cap, int *acm_cap)
152 : {
153 : const usb_descriptor_t *desc;
154 : const usb_interface_descriptor_t *id;
155 : const struct usb_cdc_cm_descriptor *cmd;
156 : const struct usb_cdc_acm_descriptor *acmd;
157 : const struct usb_cdc_union_descriptor *uniond;
158 0 : struct usbd_desc_iter iter;
159 : int current_iface_no = -1;
160 : int data_iface_no = -1;
161 : int i;
162 :
163 0 : *data_iface_idx = -1;
164 0 : *cm_cap = *acm_cap = 0;
165 0 : usbd_desc_iter_init(uaa->device, &iter);
166 0 : desc = usbd_desc_iter_next(&iter);
167 0 : while (desc) {
168 0 : if (desc->bDescriptorType == UDESC_INTERFACE) {
169 0 : id = (usb_interface_descriptor_t *)desc;
170 0 : current_iface_no = id->bInterfaceNumber;
171 0 : if (current_iface_no != ctl_iface_no &&
172 0 : id->bInterfaceClass == UICLASS_CDC_DATA &&
173 0 : id->bInterfaceSubClass == UISUBCLASS_DATA &&
174 0 : data_iface_no == -1)
175 0 : data_iface_no = current_iface_no;
176 : }
177 0 : if (current_iface_no == ctl_iface_no &&
178 0 : desc->bDescriptorType == UDESC_CS_INTERFACE) {
179 0 : switch(desc->bDescriptorSubtype) {
180 : case UDESCSUB_CDC_CM:
181 0 : cmd = (struct usb_cdc_cm_descriptor *)desc;
182 0 : *cm_cap = cmd->bmCapabilities;
183 0 : data_iface_no = cmd->bDataInterface;
184 0 : break;
185 : case UDESCSUB_CDC_ACM:
186 0 : acmd = (struct usb_cdc_acm_descriptor *)desc;
187 0 : *acm_cap = acmd->bmCapabilities;
188 0 : break;
189 : case UDESCSUB_CDC_UNION:
190 : uniond =
191 0 : (struct usb_cdc_union_descriptor *)desc;
192 0 : data_iface_no = uniond->bSlaveInterface[0];
193 0 : break;
194 : }
195 : }
196 0 : desc = usbd_desc_iter_next(&iter);
197 : }
198 :
199 : /*
200 : * If we got a data interface number, make sure the corresponding
201 : * interface exists and is not already claimed.
202 : */
203 0 : if (data_iface_no != -1) {
204 0 : for (i = 0; i < uaa->nifaces; i++) {
205 0 : id = usbd_get_interface_descriptor(uaa->ifaces[i]);
206 :
207 0 : if (id == NULL)
208 : continue;
209 :
210 0 : if (id->bInterfaceNumber == data_iface_no) {
211 0 : if (!usbd_iface_claimed(uaa->device, i))
212 0 : *data_iface_idx = i;
213 : break;
214 : }
215 : }
216 : }
217 0 : }
218 :
219 : int
220 0 : umodem_match(struct device *parent, void *match, void *aux)
221 : {
222 0 : struct usb_attach_arg *uaa = aux;
223 : usb_interface_descriptor_t *id;
224 : usb_device_descriptor_t *dd;
225 0 : int data_iface_idx, cm_cap, acm_cap, ret = UMATCH_NONE;
226 :
227 0 : if (uaa->iface == NULL)
228 0 : return (ret);
229 :
230 0 : id = usbd_get_interface_descriptor(uaa->iface);
231 0 : dd = usbd_get_device_descriptor(uaa->device);
232 0 : if (id == NULL || dd == NULL)
233 0 : return (ret);
234 :
235 : ret = UMATCH_NONE;
236 :
237 0 : if (UGETW(dd->idVendor) == USB_VENDOR_KYOCERA &&
238 0 : UGETW(dd->idProduct) == USB_PRODUCT_KYOCERA_AHK3001V &&
239 0 : id->bInterfaceNumber == 0)
240 0 : ret = UMATCH_VENDOR_PRODUCT;
241 :
242 0 : if (ret == UMATCH_NONE &&
243 0 : id->bInterfaceClass == UICLASS_CDC &&
244 0 : id->bInterfaceSubClass == UISUBCLASS_ABSTRACT_CONTROL_MODEL &&
245 0 : (id->bInterfaceProtocol == UIPROTO_CDC_AT ||
246 0 : id->bInterfaceProtocol == UIPROTO_CDC_NOCLASS))
247 0 : ret = UMATCH_IFACECLASS_IFACESUBCLASS_IFACEPROTO;
248 :
249 0 : if (ret == UMATCH_NONE)
250 0 : return (ret);
251 :
252 : /* umodem doesn't support devices without a data iface */
253 0 : umodem_get_caps(uaa, id->bInterfaceNumber, &data_iface_idx,
254 : &cm_cap, &acm_cap);
255 0 : if (data_iface_idx == -1)
256 0 : ret = UMATCH_NONE;
257 :
258 0 : return (ret);
259 0 : }
260 :
261 : void
262 0 : umodem_attach(struct device *parent, struct device *self, void *aux)
263 : {
264 0 : struct umodem_softc *sc = (struct umodem_softc *)self;
265 0 : struct usb_attach_arg *uaa = aux;
266 0 : struct usbd_device *dev = uaa->device;
267 : usb_interface_descriptor_t *id;
268 : usb_endpoint_descriptor_t *ed;
269 : usbd_status err;
270 0 : int data_iface_idx = -1;
271 : int i;
272 0 : struct ucom_attach_args uca;
273 :
274 0 : sc->sc_udev = dev;
275 0 : sc->sc_ctl_iface = uaa->iface;
276 :
277 0 : id = usbd_get_interface_descriptor(sc->sc_ctl_iface);
278 : //printf("%s: iclass %d/%d\n", sc->sc_dev.dv_xname,
279 : // id->bInterfaceClass, id->bInterfaceSubClass);
280 0 : sc->sc_ctl_iface_no = id->bInterfaceNumber;
281 :
282 : /* Get the capabilities. */
283 0 : umodem_get_caps(uaa, id->bInterfaceNumber, &data_iface_idx,
284 0 : &sc->sc_cm_cap, &sc->sc_acm_cap);
285 :
286 0 : usbd_claim_iface(sc->sc_udev, data_iface_idx);
287 0 : sc->sc_data_iface = uaa->ifaces[data_iface_idx];
288 0 : id = usbd_get_interface_descriptor(sc->sc_data_iface);
289 :
290 0 : printf("%s: data interface %d, has %sCM over data, has %sbreak\n",
291 0 : sc->sc_dev.dv_xname, id->bInterfaceNumber,
292 0 : sc->sc_cm_cap & USB_CDC_CM_OVER_DATA ? "" : "no ",
293 0 : sc->sc_acm_cap & USB_CDC_ACM_HAS_BREAK ? "" : "no ");
294 :
295 : /*
296 : * Find the bulk endpoints.
297 : * Iterate over all endpoints in the data interface and take note.
298 : */
299 0 : uca.bulkin = uca.bulkout = -1;
300 :
301 0 : for (i = 0; i < id->bNumEndpoints; i++) {
302 0 : ed = usbd_interface2endpoint_descriptor(sc->sc_data_iface, i);
303 0 : if (ed == NULL) {
304 0 : printf("%s: no endpoint descriptor for %d\n",
305 : sc->sc_dev.dv_xname, i);
306 0 : goto bad;
307 : }
308 0 : if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
309 0 : (ed->bmAttributes & UE_XFERTYPE) == UE_BULK) {
310 0 : uca.bulkin = ed->bEndpointAddress;
311 0 : } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
312 0 : (ed->bmAttributes & UE_XFERTYPE) == UE_BULK) {
313 0 : uca.bulkout = ed->bEndpointAddress;
314 0 : }
315 : }
316 :
317 0 : if (uca.bulkin == -1) {
318 0 : printf("%s: Could not find data bulk in\n",
319 : sc->sc_dev.dv_xname);
320 0 : goto bad;
321 : }
322 0 : if (uca.bulkout == -1) {
323 0 : printf("%s: Could not find data bulk out\n",
324 : sc->sc_dev.dv_xname);
325 0 : goto bad;
326 : }
327 :
328 0 : if (usbd_get_quirks(sc->sc_udev)->uq_flags & UQ_ASSUME_CM_OVER_DATA) {
329 0 : sc->sc_cm_over_data = 1;
330 0 : } else {
331 0 : if (sc->sc_cm_cap & USB_CDC_CM_OVER_DATA) {
332 0 : if (sc->sc_acm_cap & USB_CDC_ACM_HAS_FEATURE)
333 0 : err = umodem_set_comm_feature(sc,
334 : UCDC_ABSTRACT_STATE, UCDC_DATA_MULTIPLEXED);
335 : else
336 : err = 0;
337 0 : if (err) {
338 0 : printf("%s: could not set data multiplex mode\n",
339 : sc->sc_dev.dv_xname);
340 0 : goto bad;
341 : }
342 0 : sc->sc_cm_over_data = 1;
343 0 : }
344 : }
345 :
346 : /*
347 : * The standard allows for notification messages (to indicate things
348 : * like a modem hangup) to come in via an interrupt endpoint
349 : * off of the control interface. Iterate over the endpoints on
350 : * the control interface and see if there are any interrupt
351 : * endpoints; if there are, then register it.
352 : */
353 :
354 0 : sc->sc_ctl_notify = -1;
355 0 : sc->sc_notify_pipe = NULL;
356 :
357 0 : id = usbd_get_interface_descriptor(sc->sc_ctl_iface);
358 0 : for (i = 0; i < id->bNumEndpoints; i++) {
359 0 : ed = usbd_interface2endpoint_descriptor(sc->sc_ctl_iface, i);
360 0 : if (ed == NULL)
361 : continue;
362 :
363 0 : if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
364 0 : (ed->bmAttributes & UE_XFERTYPE) == UE_INTERRUPT) {
365 0 : printf("%s: status change notification available\n",
366 : sc->sc_dev.dv_xname);
367 0 : sc->sc_ctl_notify = ed->bEndpointAddress;
368 0 : }
369 : }
370 :
371 0 : sc->sc_dtr = -1;
372 :
373 0 : uca.portno = UCOM_UNK_PORTNO;
374 : /* bulkin, bulkout set above */
375 0 : uca.ibufsize = UMODEMIBUFSIZE;
376 0 : uca.obufsize = UMODEMOBUFSIZE;
377 0 : uca.ibufsizepad = UMODEMIBUFSIZE;
378 0 : uca.opkthdrlen = 0;
379 0 : uca.device = sc->sc_udev;
380 0 : uca.iface = sc->sc_data_iface;
381 0 : uca.methods = &umodem_methods;
382 0 : uca.arg = sc;
383 0 : uca.info = NULL;
384 :
385 : DPRINTF(("umodem_attach: sc=%p\n", sc));
386 0 : sc->sc_subdev = config_found_sm(self, &uca, ucomprint, ucomsubmatch);
387 :
388 0 : return;
389 :
390 : bad:
391 0 : usbd_deactivate(sc->sc_udev);
392 0 : }
393 :
394 : int
395 0 : umodem_open(void *addr, int portno)
396 : {
397 0 : struct umodem_softc *sc = addr;
398 : int err;
399 :
400 : DPRINTF(("umodem_open: sc=%p\n", sc));
401 :
402 0 : if (sc->sc_ctl_notify != -1 && sc->sc_notify_pipe == NULL) {
403 0 : err = usbd_open_pipe_intr(sc->sc_ctl_iface, sc->sc_ctl_notify,
404 : USBD_SHORT_XFER_OK, &sc->sc_notify_pipe, sc,
405 0 : &sc->sc_notify_buf, sizeof(sc->sc_notify_buf),
406 : umodem_intr, USBD_DEFAULT_INTERVAL);
407 :
408 0 : if (err) {
409 : DPRINTF(("Failed to establish notify pipe: %s\n",
410 : usbd_errstr(err)));
411 0 : return EIO;
412 : }
413 : }
414 :
415 0 : return 0;
416 0 : }
417 :
418 : void
419 0 : umodem_close(void *addr, int portno)
420 : {
421 0 : struct umodem_softc *sc = addr;
422 : int err;
423 :
424 : DPRINTF(("umodem_close: sc=%p\n", sc));
425 :
426 0 : if (sc->sc_notify_pipe != NULL) {
427 0 : usbd_abort_pipe(sc->sc_notify_pipe);
428 0 : err = usbd_close_pipe(sc->sc_notify_pipe);
429 0 : if (err)
430 0 : printf("%s: close notify pipe failed: %s\n",
431 0 : sc->sc_dev.dv_xname, usbd_errstr(err));
432 0 : sc->sc_notify_pipe = NULL;
433 0 : }
434 0 : }
435 :
436 : void
437 0 : umodem_intr(struct usbd_xfer *xfer, void *priv, usbd_status status)
438 : {
439 0 : struct umodem_softc *sc = priv;
440 : u_char mstatus;
441 :
442 0 : if (usbd_is_dying(sc->sc_udev))
443 0 : return;
444 :
445 0 : if (status != USBD_NORMAL_COMPLETION) {
446 0 : if (status == USBD_NOT_STARTED || status == USBD_CANCELLED)
447 0 : return;
448 : DPRINTF(("%s: abnormal status: %s\n", sc->sc_dev.dv_xname,
449 : usbd_errstr(status)));
450 0 : usbd_clear_endpoint_stall_async(sc->sc_notify_pipe);
451 0 : return;
452 : }
453 :
454 0 : if (sc->sc_notify_buf.bmRequestType != UCDC_NOTIFICATION) {
455 : DPRINTF(("%s: unknown message type (%02x) on notify pipe\n",
456 : sc->sc_dev.dv_xname,
457 : sc->sc_notify_buf.bmRequestType));
458 0 : return;
459 : }
460 :
461 0 : switch (sc->sc_notify_buf.bNotification) {
462 : case UCDC_N_SERIAL_STATE:
463 : /*
464 : * Set the serial state in ucom driver based on
465 : * the bits from the notify message
466 : */
467 0 : if (UGETW(sc->sc_notify_buf.wLength) != 2) {
468 0 : printf("%s: Invalid notification length! (%d)\n",
469 0 : sc->sc_dev.dv_xname,
470 : UGETW(sc->sc_notify_buf.wLength));
471 0 : break;
472 : }
473 : DPRINTF(("%s: notify bytes = %02x%02x\n",
474 : sc->sc_dev.dv_xname,
475 : sc->sc_notify_buf.data[0],
476 : sc->sc_notify_buf.data[1]));
477 : /* Currently, lsr is always zero. */
478 0 : sc->sc_lsr = sc->sc_msr = 0;
479 0 : mstatus = sc->sc_notify_buf.data[0];
480 :
481 0 : if (ISSET(mstatus, UCDC_N_SERIAL_RI))
482 0 : sc->sc_msr |= UMSR_RI;
483 0 : if (ISSET(mstatus, UCDC_N_SERIAL_DSR))
484 0 : sc->sc_msr |= UMSR_DSR;
485 0 : if (ISSET(mstatus, UCDC_N_SERIAL_DCD))
486 0 : sc->sc_msr |= UMSR_DCD;
487 0 : ucom_status_change((struct ucom_softc *)sc->sc_subdev);
488 0 : break;
489 : default:
490 : DPRINTF(("%s: unknown notify message: %02x\n",
491 : sc->sc_dev.dv_xname,
492 : sc->sc_notify_buf.bNotification));
493 : break;
494 : }
495 0 : }
496 :
497 : void
498 0 : umodem_get_status(void *addr, int portno, u_char *lsr, u_char *msr)
499 : {
500 0 : struct umodem_softc *sc = addr;
501 :
502 : DPRINTF(("umodem_get_status:\n"));
503 :
504 0 : if (lsr != NULL)
505 0 : *lsr = sc->sc_lsr;
506 0 : if (msr != NULL)
507 0 : *msr = sc->sc_msr;
508 0 : }
509 :
510 : int
511 0 : umodem_param(void *addr, int portno, struct termios *t)
512 : {
513 0 : struct umodem_softc *sc = addr;
514 : usbd_status err;
515 0 : struct usb_cdc_line_state ls;
516 :
517 : DPRINTF(("umodem_param: sc=%p\n", sc));
518 :
519 0 : USETDW(ls.dwDTERate, t->c_ospeed);
520 0 : if (ISSET(t->c_cflag, CSTOPB))
521 0 : ls.bCharFormat = UCDC_STOP_BIT_2;
522 : else
523 0 : ls.bCharFormat = UCDC_STOP_BIT_1;
524 0 : if (ISSET(t->c_cflag, PARENB)) {
525 0 : if (ISSET(t->c_cflag, PARODD))
526 0 : ls.bParityType = UCDC_PARITY_ODD;
527 : else
528 0 : ls.bParityType = UCDC_PARITY_EVEN;
529 : } else
530 0 : ls.bParityType = UCDC_PARITY_NONE;
531 0 : switch (ISSET(t->c_cflag, CSIZE)) {
532 : case CS5:
533 0 : ls.bDataBits = 5;
534 0 : break;
535 : case CS6:
536 0 : ls.bDataBits = 6;
537 0 : break;
538 : case CS7:
539 0 : ls.bDataBits = 7;
540 0 : break;
541 : case CS8:
542 0 : ls.bDataBits = 8;
543 0 : break;
544 : }
545 :
546 0 : err = umodem_set_line_coding(sc, &ls);
547 0 : if (err) {
548 : DPRINTF(("umodem_param: err=%s\n", usbd_errstr(err)));
549 0 : return (1);
550 : }
551 0 : return (0);
552 0 : }
553 :
554 : void
555 0 : umodem_dtr(struct umodem_softc *sc, int onoff)
556 : {
557 : DPRINTF(("umodem_dtr: onoff=%d\n", onoff));
558 :
559 0 : if (sc->sc_dtr == onoff)
560 : return;
561 0 : sc->sc_dtr = onoff;
562 :
563 0 : umodem_set_line_state(sc);
564 0 : }
565 :
566 : void
567 0 : umodem_rts(struct umodem_softc *sc, int onoff)
568 : {
569 : DPRINTF(("umodem_rts: onoff=%d\n", onoff));
570 :
571 0 : if (sc->sc_rts == onoff)
572 : return;
573 0 : sc->sc_rts = onoff;
574 :
575 0 : umodem_set_line_state(sc);
576 0 : }
577 :
578 : void
579 0 : umodem_set_line_state(struct umodem_softc *sc)
580 : {
581 0 : usb_device_request_t req;
582 : int ls;
583 :
584 0 : ls = (sc->sc_dtr ? UCDC_LINE_DTR : 0) |
585 0 : (sc->sc_rts ? UCDC_LINE_RTS : 0);
586 0 : req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
587 0 : req.bRequest = UCDC_SET_CONTROL_LINE_STATE;
588 0 : USETW(req.wValue, ls);
589 0 : USETW(req.wIndex, sc->sc_ctl_iface_no);
590 0 : USETW(req.wLength, 0);
591 :
592 0 : (void)usbd_do_request(sc->sc_udev, &req, 0);
593 :
594 0 : }
595 :
596 : void
597 0 : umodem_break(struct umodem_softc *sc, int onoff)
598 : {
599 0 : usb_device_request_t req;
600 :
601 : DPRINTF(("umodem_break: onoff=%d\n", onoff));
602 :
603 0 : if (!(sc->sc_acm_cap & USB_CDC_ACM_HAS_BREAK))
604 0 : return;
605 :
606 0 : req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
607 0 : req.bRequest = UCDC_SEND_BREAK;
608 0 : USETW(req.wValue, onoff ? UCDC_BREAK_ON : UCDC_BREAK_OFF);
609 0 : USETW(req.wIndex, sc->sc_ctl_iface_no);
610 0 : USETW(req.wLength, 0);
611 :
612 0 : (void)usbd_do_request(sc->sc_udev, &req, 0);
613 0 : }
614 :
615 : void
616 0 : umodem_set(void *addr, int portno, int reg, int onoff)
617 : {
618 0 : struct umodem_softc *sc = addr;
619 :
620 0 : switch (reg) {
621 : case UCOM_SET_DTR:
622 0 : umodem_dtr(sc, onoff);
623 0 : break;
624 : case UCOM_SET_RTS:
625 0 : umodem_rts(sc, onoff);
626 0 : break;
627 : case UCOM_SET_BREAK:
628 0 : umodem_break(sc, onoff);
629 0 : break;
630 : default:
631 : break;
632 : }
633 0 : }
634 :
635 : usbd_status
636 0 : umodem_set_line_coding(struct umodem_softc *sc,
637 : struct usb_cdc_line_state *state)
638 : {
639 0 : usb_device_request_t req;
640 : usbd_status err;
641 :
642 : DPRINTF(("umodem_set_line_coding: rate=%d fmt=%d parity=%d bits=%d\n",
643 : UGETDW(state->dwDTERate), state->bCharFormat,
644 : state->bParityType, state->bDataBits));
645 :
646 0 : if (memcmp(state, &sc->sc_line_state, UCDC_LINE_STATE_LENGTH) == 0) {
647 : DPRINTF(("umodem_set_line_coding: already set\n"));
648 0 : return (USBD_NORMAL_COMPLETION);
649 : }
650 :
651 0 : req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
652 0 : req.bRequest = UCDC_SET_LINE_CODING;
653 0 : USETW(req.wValue, 0);
654 0 : USETW(req.wIndex, sc->sc_ctl_iface_no);
655 0 : USETW(req.wLength, UCDC_LINE_STATE_LENGTH);
656 :
657 0 : err = usbd_do_request(sc->sc_udev, &req, state);
658 0 : if (err) {
659 : DPRINTF(("umodem_set_line_coding: failed, err=%s\n",
660 : usbd_errstr(err)));
661 0 : return (err);
662 : }
663 :
664 0 : sc->sc_line_state = *state;
665 :
666 0 : return (USBD_NORMAL_COMPLETION);
667 0 : }
668 :
669 : usbd_status
670 0 : umodem_set_comm_feature(struct umodem_softc *sc, int feature, int state)
671 : {
672 0 : usb_device_request_t req;
673 : usbd_status err;
674 0 : struct usb_cdc_abstract_state ast;
675 :
676 : DPRINTF(("umodem_set_comm_feature: feature=%d state=%d\n", feature,
677 : state));
678 :
679 0 : req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
680 0 : req.bRequest = UCDC_SET_COMM_FEATURE;
681 0 : USETW(req.wValue, feature);
682 0 : USETW(req.wIndex, sc->sc_ctl_iface_no);
683 0 : USETW(req.wLength, UCDC_ABSTRACT_STATE_LENGTH);
684 0 : USETW(ast.wState, state);
685 :
686 0 : err = usbd_do_request(sc->sc_udev, &req, &ast);
687 0 : if (err) {
688 : DPRINTF(("umodem_set_comm_feature: feature=%d, err=%s\n",
689 : feature, usbd_errstr(err)));
690 0 : return (err);
691 : }
692 :
693 0 : return (USBD_NORMAL_COMPLETION);
694 0 : }
695 :
696 : int
697 0 : umodem_detach(struct device *self, int flags)
698 : {
699 0 : struct umodem_softc *sc = (struct umodem_softc *)self;
700 : int rv = 0;
701 :
702 : DPRINTF(("umodem_detach: sc=%p flags=%d\n", sc, flags));
703 :
704 0 : if (sc->sc_notify_pipe != NULL) {
705 0 : usbd_abort_pipe(sc->sc_notify_pipe);
706 0 : usbd_close_pipe(sc->sc_notify_pipe);
707 0 : sc->sc_notify_pipe = NULL;
708 0 : }
709 :
710 0 : if (sc->sc_subdev != NULL)
711 0 : rv = config_detach(sc->sc_subdev, flags);
712 :
713 0 : return (rv);
714 : }
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