Annotation of sys/dev/usb/umodem.c, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: umodem.c,v 1.34 2007/06/18 09:55:58 mbalmer 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: * 3. All advertising materials mentioning features or use of this software
21: * must display the following acknowledgement:
22: * This product includes software developed by the NetBSD
23: * Foundation, Inc. and its contributors.
24: * 4. Neither the name of The NetBSD Foundation nor the names of its
25: * contributors may be used to endorse or promote products derived
26: * from this software without specific prior written permission.
27: *
28: * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
29: * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
30: * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
31: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
32: * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
33: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
34: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
35: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
36: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
37: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
38: * POSSIBILITY OF SUCH DAMAGE.
39: */
40:
41: /*
42: * Comm Class spec: http://www.usb.org/developers/devclass_docs/usbccs10.pdf
43: * http://www.usb.org/developers/devclass_docs/usbcdc11.pdf
44: */
45:
46: /*
47: * TODO:
48: * - Add error recovery in various places; the big problem is what
49: * to do in a callback if there is an error.
50: * - Implement a Call Device for modems without multiplexed commands.
51: *
52: */
53:
54: #include <sys/param.h>
55: #include <sys/systm.h>
56: #include <sys/kernel.h>
57: #include <sys/ioctl.h>
58: #include <sys/conf.h>
59: #include <sys/tty.h>
60: #include <sys/file.h>
61: #include <sys/selinfo.h>
62: #include <sys/proc.h>
63: #include <sys/vnode.h>
64: #include <sys/device.h>
65: #include <sys/poll.h>
66:
67: #include <dev/usb/usb.h>
68: #include <dev/usb/usbcdc.h>
69:
70: #include <dev/usb/usbdi.h>
71: #include <dev/usb/usbdi_util.h>
72: #include <dev/usb/usbdevs.h>
73: #include <dev/usb/usb_quirks.h>
74:
75: #include <dev/usb/usbdevs.h>
76: #include <dev/usb/ucomvar.h>
77:
78: #ifdef UMODEM_DEBUG
79: #define DPRINTFN(n, x) do { if (umodemdebug > (n)) printf x; } while (0)
80: int umodemdebug = 0;
81: #else
82: #define DPRINTFN(n, x)
83: #endif
84: #define DPRINTF(x) DPRINTFN(0, x)
85:
86: /*
87: * These are the maximum number of bytes transferred per frame.
88: * Buffers are this large to deal with high speed wireless devices.
89: * Capped at 1024 as ttymalloc() is limited to this amount.
90: */
91: #define UMODEMIBUFSIZE 1024
92: #define UMODEMOBUFSIZE 1024
93:
94: struct umodem_softc {
95: struct device sc_dev; /* base device */
96:
97: usbd_device_handle sc_udev; /* USB device */
98:
99: int sc_ctl_iface_no;
100: usbd_interface_handle sc_ctl_iface; /* control interface */
101: int sc_data_iface_no;
102: usbd_interface_handle sc_data_iface; /* data interface */
103:
104: int sc_cm_cap; /* CM capabilities */
105: int sc_acm_cap; /* ACM capabilities */
106:
107: int sc_cm_over_data;
108:
109: usb_cdc_line_state_t sc_line_state; /* current line state */
110: u_char sc_dtr; /* current DTR state */
111: u_char sc_rts; /* current RTS state */
112:
113: struct device *sc_subdev; /* ucom device */
114:
115: u_char sc_opening; /* lock during open */
116: u_char sc_dying; /* disconnecting */
117:
118: int sc_ctl_notify; /* Notification endpoint */
119: usbd_pipe_handle sc_notify_pipe; /* Notification pipe */
120: usb_cdc_notification_t sc_notify_buf; /* Notification structure */
121: u_char sc_lsr; /* Local status register */
122: u_char sc_msr; /* Modem status register */
123: };
124:
125: usbd_status umodem_set_comm_feature(struct umodem_softc *sc,
126: int feature, int state);
127: usbd_status umodem_set_line_coding(struct umodem_softc *sc,
128: usb_cdc_line_state_t *state);
129:
130: void umodem_get_status(void *, int portno, u_char *lsr, u_char *msr);
131: void umodem_set(void *, int, int, int);
132: void umodem_dtr(struct umodem_softc *, int);
133: void umodem_rts(struct umodem_softc *, int);
134: void umodem_break(struct umodem_softc *, int);
135: void umodem_set_line_state(struct umodem_softc *);
136: int umodem_param(void *, int, struct termios *);
137: int umodem_ioctl(void *, int, u_long, caddr_t, int, struct proc *);
138: int umodem_open(void *, int portno);
139: void umodem_close(void *, int portno);
140: void umodem_intr(usbd_xfer_handle, usbd_private_handle, usbd_status);
141:
142: struct ucom_methods umodem_methods = {
143: umodem_get_status,
144: umodem_set,
145: umodem_param,
146: umodem_ioctl,
147: umodem_open,
148: umodem_close,
149: NULL,
150: NULL,
151: };
152:
153: int umodem_match(struct device *, void *, void *);
154: void umodem_attach(struct device *, struct device *, void *);
155: int umodem_detach(struct device *, int);
156: int umodem_activate(struct device *, enum devact);
157:
158: struct cfdriver umodem_cd = {
159: NULL, "umodem", DV_DULL
160: };
161:
162: const struct cfattach umodem_ca = {
163: sizeof(struct umodem_softc),
164: umodem_match,
165: umodem_attach,
166: umodem_detach,
167: umodem_activate,
168: };
169:
170: int
171: umodem_match(struct device *parent, void *match, void *aux)
172: {
173: struct usb_attach_arg *uaa = aux;
174: usb_interface_descriptor_t *id;
175: usb_device_descriptor_t *dd;
176: int ret;
177:
178: if (uaa->iface == NULL)
179: return (UMATCH_NONE);
180:
181: id = usbd_get_interface_descriptor(uaa->iface);
182: dd = usbd_get_device_descriptor(uaa->device);
183: if (id == NULL || dd == NULL)
184: return (UMATCH_NONE);
185:
186: ret = UMATCH_NONE;
187: if (UGETW(dd->idVendor) == USB_VENDOR_KYOCERA &&
188: UGETW(dd->idProduct) == USB_PRODUCT_KYOCERA_AHK3001V &&
189: id->bInterfaceNumber == 0)
190: ret = UMATCH_VENDOR_PRODUCT;
191:
192: if (ret == UMATCH_NONE &&
193: id->bInterfaceClass == UICLASS_CDC &&
194: id->bInterfaceSubClass == UISUBCLASS_ABSTRACT_CONTROL_MODEL &&
195: id->bInterfaceProtocol == UIPROTO_CDC_AT)
196: ret = UMATCH_IFACECLASS_IFACESUBCLASS_IFACEPROTO;
197:
198: return (ret);
199: }
200:
201: void
202: umodem_attach(struct device *parent, struct device *self, void *aux)
203: {
204: struct umodem_softc *sc = (struct umodem_softc *)self;
205: struct usb_attach_arg *uaa = aux;
206: usbd_device_handle dev = uaa->device;
207: usb_interface_descriptor_t *id;
208: usb_endpoint_descriptor_t *ed;
209: usb_cdc_cm_descriptor_t *cmd;
210: usb_interface_descriptor_t *idesc;
211: const usb_cdc_acm_descriptor_t *acmd;
212: const usb_cdc_union_descriptor_t *uniond;
213: const usb_descriptor_t *desc;
214: usbd_desc_iter_t iter;
215: char *devinfop;
216: usbd_status err;
217: int current_iface_no = -1;
218: int i;
219: struct ucom_attach_args uca;
220:
221: devinfop = usbd_devinfo_alloc(dev, 0);
222: printf("\n");
223:
224: sc->sc_udev = dev;
225: sc->sc_ctl_iface = uaa->iface;
226:
227: id = usbd_get_interface_descriptor(sc->sc_ctl_iface);
228: printf("%s: %s, iclass %d/%d\n", sc->sc_dev.dv_xname,
229: devinfop, id->bInterfaceClass, id->bInterfaceSubClass);
230: usbd_devinfo_free(devinfop);
231: sc->sc_ctl_iface_no = id->bInterfaceNumber;
232:
233: /* Get the data interface no. and capabilities */
234: sc->sc_cm_cap = 0;
235: sc->sc_data_iface_no = 0;
236: sc->sc_acm_cap = 0;
237: usb_desc_iter_init(dev, &iter);
238: desc = usb_desc_iter_next(&iter);
239: while (desc) {
240: if (desc->bDescriptorType == UDESC_INTERFACE) {
241: idesc = (usb_interface_descriptor_t *)desc;
242: current_iface_no = idesc->bInterfaceNumber;
243: }
244: if (current_iface_no == sc->sc_ctl_iface_no &&
245: desc->bDescriptorType == UDESC_CS_INTERFACE) {
246: switch(desc->bDescriptorSubtype) {
247: case UDESCSUB_CDC_CM:
248: cmd = (usb_cdc_cm_descriptor_t *)desc;
249: sc->sc_cm_cap = cmd->bmCapabilities;
250: sc->sc_data_iface_no = cmd->bDataInterface;
251: break;
252: case UDESCSUB_CDC_ACM:
253: acmd = (usb_cdc_acm_descriptor_t *)desc;
254: sc->sc_acm_cap = acmd->bmCapabilities;
255: break;
256: case UDESCSUB_CDC_UNION:
257: uniond = (usb_cdc_union_descriptor_t *)desc;
258: sc->sc_data_iface_no =
259: uniond->bSlaveInterface[0];
260: break;
261: }
262: }
263: desc = usb_desc_iter_next(&iter);
264: }
265:
266: if (sc->sc_data_iface_no == 0) {
267: printf("%s: no pointer to data interface\n",
268: sc->sc_dev.dv_xname);
269: goto bad;
270: }
271:
272: printf("%s: data interface %d, has %sCM over data, has %sbreak\n",
273: sc->sc_dev.dv_xname, sc->sc_data_iface_no,
274: sc->sc_cm_cap & USB_CDC_CM_OVER_DATA ? "" : "no ",
275: sc->sc_acm_cap & USB_CDC_ACM_HAS_BREAK ? "" : "no ");
276:
277: /* Get the data interface too. */
278: for (i = 0; i < uaa->nifaces; i++) {
279: if (uaa->ifaces[i] != NULL) {
280: id = usbd_get_interface_descriptor(uaa->ifaces[i]);
281: if (id != NULL &&
282: id->bInterfaceNumber == sc->sc_data_iface_no) {
283: sc->sc_data_iface = uaa->ifaces[i];
284: uaa->ifaces[i] = NULL;
285: }
286: }
287: }
288: if (sc->sc_data_iface == NULL) {
289: printf("%s: no data interface\n", sc->sc_dev.dv_xname);
290: goto bad;
291: }
292:
293: /*
294: * Find the bulk endpoints.
295: * Iterate over all endpoints in the data interface and take note.
296: */
297: uca.bulkin = uca.bulkout = -1;
298:
299: id = usbd_get_interface_descriptor(sc->sc_data_iface);
300: for (i = 0; i < id->bNumEndpoints; i++) {
301: ed = usbd_interface2endpoint_descriptor(sc->sc_data_iface, i);
302: if (ed == NULL) {
303: printf("%s: no endpoint descriptor for %d\n",
304: sc->sc_dev.dv_xname, i);
305: goto bad;
306: }
307: if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
308: (ed->bmAttributes & UE_XFERTYPE) == UE_BULK) {
309: uca.bulkin = ed->bEndpointAddress;
310: } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
311: (ed->bmAttributes & UE_XFERTYPE) == UE_BULK) {
312: uca.bulkout = ed->bEndpointAddress;
313: }
314: }
315:
316: if (uca.bulkin == -1) {
317: printf("%s: Could not find data bulk in\n",
318: sc->sc_dev.dv_xname);
319: goto bad;
320: }
321: if (uca.bulkout == -1) {
322: printf("%s: Could not find data bulk out\n",
323: sc->sc_dev.dv_xname);
324: goto bad;
325: }
326:
327: if (usbd_get_quirks(sc->sc_udev)->uq_flags & UQ_ASSUME_CM_OVER_DATA) {
328: sc->sc_cm_over_data = 1;
329: } else {
330: if (sc->sc_cm_cap & USB_CDC_CM_OVER_DATA) {
331: if (sc->sc_acm_cap & USB_CDC_ACM_HAS_FEATURE)
332: err = umodem_set_comm_feature(sc,
333: UCDC_ABSTRACT_STATE, UCDC_DATA_MULTIPLEXED);
334: else
335: err = 0;
336: if (err) {
337: printf("%s: could not set data multiplex mode\n",
338: sc->sc_dev.dv_xname);
339: goto bad;
340: }
341: sc->sc_cm_over_data = 1;
342: }
343: }
344:
345: /*
346: * The standard allows for notification messages (to indicate things
347: * like a modem hangup) to come in via an interrupt endpoint
348: * off of the control interface. Iterate over the endpoints on
349: * the control interface and see if there are any interrupt
350: * endpoints; if there are, then register it.
351: */
352:
353: sc->sc_ctl_notify = -1;
354: sc->sc_notify_pipe = NULL;
355:
356: id = usbd_get_interface_descriptor(sc->sc_ctl_iface);
357: for (i = 0; i < id->bNumEndpoints; i++) {
358: ed = usbd_interface2endpoint_descriptor(sc->sc_ctl_iface, i);
359: if (ed == NULL)
360: continue;
361:
362: if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
363: (ed->bmAttributes & UE_XFERTYPE) == UE_INTERRUPT) {
364: printf("%s: status change notification available\n",
365: sc->sc_dev.dv_xname);
366: sc->sc_ctl_notify = ed->bEndpointAddress;
367: }
368: }
369:
370: sc->sc_dtr = -1;
371:
372: uca.portno = UCOM_UNK_PORTNO;
373: /* bulkin, bulkout set above */
374: uca.ibufsize = UMODEMIBUFSIZE;
375: uca.obufsize = UMODEMOBUFSIZE;
376: uca.ibufsizepad = UMODEMIBUFSIZE;
377: uca.opkthdrlen = 0;
378: uca.device = sc->sc_udev;
379: uca.iface = sc->sc_data_iface;
380: uca.methods = &umodem_methods;
381: uca.arg = sc;
382: uca.info = NULL;
383:
384: usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev,
385: &sc->sc_dev);
386:
387: DPRINTF(("umodem_attach: sc=%p\n", sc));
388: sc->sc_subdev = config_found_sm(self, &uca, ucomprint, ucomsubmatch);
389:
390: return;
391:
392: bad:
393: sc->sc_dying = 1;
394: }
395:
396: int
397: umodem_open(void *addr, int portno)
398: {
399: struct umodem_softc *sc = addr;
400: int err;
401:
402: DPRINTF(("umodem_open: sc=%p\n", sc));
403:
404: if (sc->sc_ctl_notify != -1 && sc->sc_notify_pipe == NULL) {
405: err = usbd_open_pipe_intr(sc->sc_ctl_iface, sc->sc_ctl_notify,
406: USBD_SHORT_XFER_OK, &sc->sc_notify_pipe, sc,
407: &sc->sc_notify_buf, sizeof(sc->sc_notify_buf),
408: umodem_intr, USBD_DEFAULT_INTERVAL);
409:
410: if (err) {
411: DPRINTF(("Failed to establish notify pipe: %s\n",
412: usbd_errstr(err)));
413: return EIO;
414: }
415: }
416:
417: return 0;
418: }
419:
420: void
421: umodem_close(void *addr, int portno)
422: {
423: struct umodem_softc *sc = addr;
424: int err;
425:
426: DPRINTF(("umodem_close: sc=%p\n", sc));
427:
428: if (sc->sc_notify_pipe != NULL) {
429: err = usbd_abort_pipe(sc->sc_notify_pipe);
430: if (err)
431: printf("%s: abort notify pipe failed: %s\n",
432: sc->sc_dev.dv_xname, usbd_errstr(err));
433: err = usbd_close_pipe(sc->sc_notify_pipe);
434: if (err)
435: printf("%s: close notify pipe failed: %s\n",
436: sc->sc_dev.dv_xname, usbd_errstr(err));
437: sc->sc_notify_pipe = NULL;
438: }
439: }
440:
441: void
442: umodem_intr(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
443: {
444: struct umodem_softc *sc = priv;
445: u_char mstatus;
446:
447: if (sc->sc_dying)
448: return;
449:
450: if (status != USBD_NORMAL_COMPLETION) {
451: if (status == USBD_NOT_STARTED || status == USBD_CANCELLED)
452: return;
453: printf("%s: abnormal status: %s\n", sc->sc_dev.dv_xname,
454: usbd_errstr(status));
455: return;
456: }
457:
458: if (sc->sc_notify_buf.bmRequestType != UCDC_NOTIFICATION) {
459: DPRINTF(("%s: unknown message type (%02x) on notify pipe\n",
460: sc->sc_dev.dv_xname,
461: sc->sc_notify_buf.bmRequestType));
462: return;
463: }
464:
465: switch (sc->sc_notify_buf.bNotification) {
466: case UCDC_N_SERIAL_STATE:
467: /*
468: * Set the serial state in ucom driver based on
469: * the bits from the notify message
470: */
471: if (UGETW(sc->sc_notify_buf.wLength) != 2) {
472: printf("%s: Invalid notification length! (%d)\n",
473: sc->sc_dev.dv_xname,
474: UGETW(sc->sc_notify_buf.wLength));
475: break;
476: }
477: DPRINTF(("%s: notify bytes = %02x%02x\n",
478: sc->sc_dev.dv_xname,
479: sc->sc_notify_buf.data[0],
480: sc->sc_notify_buf.data[1]));
481: /* Currently, lsr is always zero. */
482: sc->sc_lsr = sc->sc_msr = 0;
483: mstatus = sc->sc_notify_buf.data[0];
484:
485: if (ISSET(mstatus, UCDC_N_SERIAL_RI))
486: sc->sc_msr |= UMSR_RI;
487: if (ISSET(mstatus, UCDC_N_SERIAL_DSR))
488: sc->sc_msr |= UMSR_DSR;
489: if (ISSET(mstatus, UCDC_N_SERIAL_DCD))
490: sc->sc_msr |= UMSR_DCD;
491: ucom_status_change((struct ucom_softc *)sc->sc_subdev);
492: break;
493: default:
494: DPRINTF(("%s: unknown notify message: %02x\n",
495: sc->sc_dev.dv_xname,
496: sc->sc_notify_buf.bNotification));
497: break;
498: }
499: }
500:
501: void
502: umodem_get_status(void *addr, int portno, u_char *lsr, u_char *msr)
503: {
504: struct umodem_softc *sc = addr;
505:
506: DPRINTF(("umodem_get_status:\n"));
507:
508: if (lsr != NULL)
509: *lsr = sc->sc_lsr;
510: if (msr != NULL)
511: *msr = sc->sc_msr;
512: }
513:
514: int
515: umodem_param(void *addr, int portno, struct termios *t)
516: {
517: struct umodem_softc *sc = addr;
518: usbd_status err;
519: usb_cdc_line_state_t ls;
520:
521: DPRINTF(("umodem_param: sc=%p\n", sc));
522:
523: USETDW(ls.dwDTERate, t->c_ospeed);
524: if (ISSET(t->c_cflag, CSTOPB))
525: ls.bCharFormat = UCDC_STOP_BIT_2;
526: else
527: ls.bCharFormat = UCDC_STOP_BIT_1;
528: if (ISSET(t->c_cflag, PARENB)) {
529: if (ISSET(t->c_cflag, PARODD))
530: ls.bParityType = UCDC_PARITY_ODD;
531: else
532: ls.bParityType = UCDC_PARITY_EVEN;
533: } else
534: ls.bParityType = UCDC_PARITY_NONE;
535: switch (ISSET(t->c_cflag, CSIZE)) {
536: case CS5:
537: ls.bDataBits = 5;
538: break;
539: case CS6:
540: ls.bDataBits = 6;
541: break;
542: case CS7:
543: ls.bDataBits = 7;
544: break;
545: case CS8:
546: ls.bDataBits = 8;
547: break;
548: }
549:
550: err = umodem_set_line_coding(sc, &ls);
551: if (err) {
552: DPRINTF(("umodem_param: err=%s\n", usbd_errstr(err)));
553: return (1);
554: }
555: return (0);
556: }
557:
558: int
559: umodem_ioctl(void *addr, int portno, u_long cmd, caddr_t data, int flag,
560: struct proc *p)
561: {
562: struct umodem_softc *sc = addr;
563: int error = 0;
564:
565: if (sc->sc_dying)
566: return (EIO);
567:
568: DPRINTF(("umodemioctl: cmd=0x%08lx\n", cmd));
569:
570: switch (cmd) {
571: case USB_GET_CM_OVER_DATA:
572: *(int *)data = sc->sc_cm_over_data;
573: break;
574:
575: case USB_SET_CM_OVER_DATA:
576: if (*(int *)data != sc->sc_cm_over_data) {
577: /* XXX change it */
578: }
579: break;
580:
581: default:
582: DPRINTF(("umodemioctl: unknown\n"));
583: error = ENOTTY;
584: break;
585: }
586:
587: return (error);
588: }
589:
590: void
591: umodem_dtr(struct umodem_softc *sc, int onoff)
592: {
593: DPRINTF(("umodem_modem: onoff=%d\n", onoff));
594:
595: if (sc->sc_dtr == onoff)
596: return;
597: sc->sc_dtr = onoff;
598:
599: umodem_set_line_state(sc);
600: }
601:
602: void
603: umodem_rts(struct umodem_softc *sc, int onoff)
604: {
605: DPRINTF(("umodem_modem: onoff=%d\n", onoff));
606:
607: if (sc->sc_rts == onoff)
608: return;
609: sc->sc_rts = onoff;
610:
611: umodem_set_line_state(sc);
612: }
613:
614: void
615: umodem_set_line_state(struct umodem_softc *sc)
616: {
617: usb_device_request_t req;
618: int ls;
619:
620: ls = (sc->sc_dtr ? UCDC_LINE_DTR : 0) |
621: (sc->sc_rts ? UCDC_LINE_RTS : 0);
622: req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
623: req.bRequest = UCDC_SET_CONTROL_LINE_STATE;
624: USETW(req.wValue, ls);
625: USETW(req.wIndex, sc->sc_ctl_iface_no);
626: USETW(req.wLength, 0);
627:
628: (void)usbd_do_request(sc->sc_udev, &req, 0);
629:
630: }
631:
632: void
633: umodem_break(struct umodem_softc *sc, int onoff)
634: {
635: usb_device_request_t req;
636:
637: DPRINTF(("umodem_break: onoff=%d\n", onoff));
638:
639: if (!(sc->sc_acm_cap & USB_CDC_ACM_HAS_BREAK))
640: return;
641:
642: req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
643: req.bRequest = UCDC_SEND_BREAK;
644: USETW(req.wValue, onoff ? UCDC_BREAK_ON : UCDC_BREAK_OFF);
645: USETW(req.wIndex, sc->sc_ctl_iface_no);
646: USETW(req.wLength, 0);
647:
648: (void)usbd_do_request(sc->sc_udev, &req, 0);
649: }
650:
651: void
652: umodem_set(void *addr, int portno, int reg, int onoff)
653: {
654: struct umodem_softc *sc = addr;
655:
656: switch (reg) {
657: case UCOM_SET_DTR:
658: umodem_dtr(sc, onoff);
659: break;
660: case UCOM_SET_RTS:
661: umodem_rts(sc, onoff);
662: break;
663: case UCOM_SET_BREAK:
664: umodem_break(sc, onoff);
665: break;
666: default:
667: break;
668: }
669: }
670:
671: usbd_status
672: umodem_set_line_coding(struct umodem_softc *sc, usb_cdc_line_state_t *state)
673: {
674: usb_device_request_t req;
675: usbd_status err;
676:
677: DPRINTF(("umodem_set_line_coding: rate=%d fmt=%d parity=%d bits=%d\n",
678: UGETDW(state->dwDTERate), state->bCharFormat,
679: state->bParityType, state->bDataBits));
680:
681: if (memcmp(state, &sc->sc_line_state, UCDC_LINE_STATE_LENGTH) == 0) {
682: DPRINTF(("umodem_set_line_coding: already set\n"));
683: return (USBD_NORMAL_COMPLETION);
684: }
685:
686: req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
687: req.bRequest = UCDC_SET_LINE_CODING;
688: USETW(req.wValue, 0);
689: USETW(req.wIndex, sc->sc_ctl_iface_no);
690: USETW(req.wLength, UCDC_LINE_STATE_LENGTH);
691:
692: err = usbd_do_request(sc->sc_udev, &req, state);
693: if (err) {
694: DPRINTF(("umodem_set_line_coding: failed, err=%s\n",
695: usbd_errstr(err)));
696: return (err);
697: }
698:
699: sc->sc_line_state = *state;
700:
701: return (USBD_NORMAL_COMPLETION);
702: }
703:
704: usbd_status
705: umodem_set_comm_feature(struct umodem_softc *sc, int feature, int state)
706: {
707: usb_device_request_t req;
708: usbd_status err;
709: usb_cdc_abstract_state_t ast;
710:
711: DPRINTF(("umodem_set_comm_feature: feature=%d state=%d\n", feature,
712: state));
713:
714: req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
715: req.bRequest = UCDC_SET_COMM_FEATURE;
716: USETW(req.wValue, feature);
717: USETW(req.wIndex, sc->sc_ctl_iface_no);
718: USETW(req.wLength, UCDC_ABSTRACT_STATE_LENGTH);
719: USETW(ast.wState, state);
720:
721: err = usbd_do_request(sc->sc_udev, &req, &ast);
722: if (err) {
723: DPRINTF(("umodem_set_comm_feature: feature=%d, err=%s\n",
724: feature, usbd_errstr(err)));
725: return (err);
726: }
727:
728: return (USBD_NORMAL_COMPLETION);
729: }
730:
731: int
732: umodem_activate(struct device *self, enum devact act)
733: {
734: struct umodem_softc *sc = (struct umodem_softc *)self;
735: int rv = 0;
736:
737: switch (act) {
738: case DVACT_ACTIVATE:
739: break;
740:
741: case DVACT_DEACTIVATE:
742: sc->sc_dying = 1;
743: if (sc->sc_subdev)
744: rv = config_deactivate(sc->sc_subdev);
745: break;
746: }
747: return (rv);
748: }
749:
750: int
751: umodem_detach(struct device *self, int flags)
752: {
753: struct umodem_softc *sc = (struct umodem_softc *)self;
754: int rv = 0;
755:
756: DPRINTF(("umodem_detach: sc=%p flags=%d\n", sc, flags));
757:
758: sc->sc_dying = 1;
759:
760: if (sc->sc_subdev != NULL)
761: rv = config_detach(sc->sc_subdev, flags);
762:
763: usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev,
764: &sc->sc_dev);
765:
766: return (rv);
767: }
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