1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
|
/* $NetBSD: umodem.c,v 1.45 2002/09/23 05:51:23 simonb Exp $ */
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
/*-
* Copyright (c) 2003, M. Warner Losh <imp@freebsd.org>.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/*-
* Copyright (c) 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Lennart Augustsson (lennart@augustsson.net) at
* Carlstedt Research & Technology.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/*
* Comm Class spec: http://www.usb.org/developers/devclass_docs/usbccs10.pdf
* http://www.usb.org/developers/devclass_docs/usbcdc11.pdf
*/
/*
* TODO:
* - Add error recovery in various places; the big problem is what
* to do in a callback if there is an error.
* - Implement a Call Device for modems without multiplexed commands.
*
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/ioccom.h>
#include <sys/conf.h>
#include <sys/serial.h>
#include <sys/tty.h>
#include <sys/file.h>
#include <sys/select.h>
#include <sys/sysctl.h>
#include <sys/proc.h>
#include <sys/bus.h>
#include <sys/poll.h>
#include <sys/uio.h>
#include <sys/taskqueue.h>
#include <dev/usb/usb.h>
#include <dev/usb/usbcdc.h>
#include <dev/usb/usbdi.h>
#include <dev/usb/usbdi_util.h>
#include <dev/usb/usb_quirks.h>
#include <dev/usb/ucomvar.h>
#include "usbdevs.h"
#ifdef USB_DEBUG
int umodemdebug = 0;
SYSCTL_NODE(_hw_usb, OID_AUTO, umodem, CTLFLAG_RW, 0, "USB umodem");
SYSCTL_INT(_hw_usb_umodem, OID_AUTO, debug, CTLFLAG_RW,
&umodemdebug, 0, "umodem debug level");
#define DPRINTFN(n, x) if (umodemdebug > (n)) logprintf x
#else
#define DPRINTFN(n, x)
#endif
#define DPRINTF(x) DPRINTFN(0, x)
static const struct umodem_product {
u_int16_t vendor;
u_int16_t product;
u_int8_t interface;
} umodem_products[] = {
/* Kyocera AH-K3001V*/
{ USB_VENDOR_KYOCERA, USB_PRODUCT_KYOCERA_AHK3001V, 0 },
{ 0, 0, 0 },
};
/*
* These are the maximum number of bytes transferred per frame.
* If some really high speed devices should use this driver they
* may need to be increased, but this is good enough for normal modems.
*/
#define UMODEMIBUFSIZE 64
#define UMODEMOBUFSIZE 256
#define UMODEM_MODVER 1 /* module version */
struct umodem_softc {
struct ucom_softc sc_ucom;
USBBASEDEVICE sc_dev; /* base device */
usbd_device_handle sc_udev; /* USB device */
int sc_ctl_iface_no;
usbd_interface_handle sc_ctl_iface; /* control interface */
int sc_data_iface_no;
usbd_interface_handle sc_data_iface; /* data interface */
int sc_cm_cap; /* CM capabilities */
int sc_acm_cap; /* ACM capabilities */
int sc_cm_over_data;
usb_cdc_line_state_t sc_line_state; /* current line state */
u_char sc_dtr; /* current DTR state */
u_char sc_rts; /* current RTS state */
u_char sc_opening; /* lock during open */
int sc_ctl_notify; /* Notification endpoint */
usbd_pipe_handle sc_notify_pipe; /* Notification pipe */
usb_cdc_notification_t sc_notify_buf; /* Notification structure */
u_char sc_lsr; /* Local status register */
u_char sc_msr; /* Modem status register */
struct task sc_task;
};
Static void *umodem_get_desc(usbd_device_handle dev, int type, int subtype);
Static usbd_status umodem_set_comm_feature(struct umodem_softc *sc,
int feature, int state);
Static usbd_status umodem_set_line_coding(struct umodem_softc *sc,
usb_cdc_line_state_t *state);
Static void umodem_get_caps(usbd_device_handle, int *, int *);
Static void umodem_get_status(void *, int portno, u_char *lsr, u_char *msr);
Static void umodem_set(void *, int, int, int);
Static void umodem_dtr(struct umodem_softc *, int);
Static void umodem_rts(struct umodem_softc *, int);
Static void umodem_break(struct umodem_softc *, int);
Static void umodem_set_line_state(struct umodem_softc *);
Static int umodem_param(void *, int, struct termios *);
Static int umodem_ioctl(void *, int, u_long, caddr_t, int, usb_proc_ptr );
Static int umodem_open(void *, int portno);
Static void umodem_close(void *, int portno);
Static void umodem_intr(usbd_xfer_handle, usbd_private_handle, usbd_status);
Static void umodem_notify(void *, int);
Static struct ucom_callback umodem_callback = {
umodem_get_status,
umodem_set,
umodem_param,
umodem_ioctl,
umodem_open,
umodem_close,
NULL,
NULL,
};
Static device_probe_t umodem_match;
Static device_attach_t umodem_attach;
Static device_detach_t umodem_detach;
Static device_method_t umodem_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, umodem_match),
DEVMETHOD(device_attach, umodem_attach),
DEVMETHOD(device_detach, umodem_detach),
{ 0, 0 }
};
Static driver_t umodem_driver = {
"ucom",
umodem_methods,
sizeof (struct umodem_softc)
};
DRIVER_MODULE(umodem, uhub, umodem_driver, ucom_devclass, usbd_driver_load, 0);
MODULE_DEPEND(umodem, usb, 1, 1, 1);
MODULE_DEPEND(umodem, ucom, UCOM_MINVER, UCOM_PREFVER, UCOM_MAXVER);
MODULE_VERSION(umodem, UMODEM_MODVER);
USB_MATCH(umodem)
{
USB_MATCH_START(umodem, uaa);
usb_interface_descriptor_t *id;
usb_device_descriptor_t *dd;
int cm, acm, i, ret;
if (uaa->iface == NULL)
return (UMATCH_NONE);
id = usbd_get_interface_descriptor(uaa->iface);
dd = usbd_get_device_descriptor(uaa->device);
if (id == NULL || dd == NULL)
return (UMATCH_NONE);
ret = UMATCH_NONE;
for (i = 0; umodem_products[i].vendor != 0; i++) {
if (umodem_products[i].vendor == UGETW(dd->idVendor) &&
umodem_products[i].product == UGETW(dd->idProduct) &&
umodem_products[i].interface == id->bInterfaceNumber) {
ret = UMATCH_VENDOR_PRODUCT;
break;
}
}
if (ret == UMATCH_NONE &&
id->bInterfaceClass == UICLASS_CDC &&
id->bInterfaceSubClass == UISUBCLASS_ABSTRACT_CONTROL_MODEL &&
id->bInterfaceProtocol == UIPROTO_CDC_AT)
ret = UMATCH_IFACECLASS_IFACESUBCLASS_IFACEPROTO;
if (ret == UMATCH_NONE)
return (ret);
umodem_get_caps(uaa->device, &cm, &acm);
if (!(cm & USB_CDC_CM_DOES_CM) ||
!(cm & USB_CDC_CM_OVER_DATA) ||
!(acm & USB_CDC_ACM_HAS_LINE))
return (UMATCH_NONE);
return ret;
}
USB_ATTACH(umodem)
{
USB_ATTACH_START(umodem, sc, uaa);
usbd_device_handle dev = uaa->device;
usb_interface_descriptor_t *id;
usb_endpoint_descriptor_t *ed;
usb_cdc_cm_descriptor_t *cmd;
char *devinfo = NULL;
const char *devname;
usbd_status err;
int data_ifcno;
int i;
struct ucom_softc *ucom;
devinfo = malloc(1024, M_USBDEV, M_WAITOK);
usbd_devinfo(dev, 0, devinfo);
ucom = &sc->sc_ucom;
ucom->sc_dev = self;
sc->sc_dev = self;
device_set_desc_copy(self, devinfo);
ucom->sc_udev = dev;
ucom->sc_iface = uaa->iface;
/*USB_ATTACH_SETUP; */
sc->sc_udev = dev;
sc->sc_ctl_iface = uaa->iface;
devname = USBDEVNAME(sc->sc_dev);
/* XXX ? use something else ? XXX */
id = usbd_get_interface_descriptor(sc->sc_ctl_iface);
printf("%s: %s, iclass %d/%d\n", devname, devinfo,
id->bInterfaceClass, id->bInterfaceSubClass);
sc->sc_ctl_iface_no = id->bInterfaceNumber;
umodem_get_caps(dev, &sc->sc_cm_cap, &sc->sc_acm_cap);
/* Get the data interface no. */
cmd = umodem_get_desc(dev, UDESC_CS_INTERFACE, UDESCSUB_CDC_CM);
if (cmd == NULL) {
printf("%s: no CM descriptor\n", devname);
goto bad;
}
sc->sc_data_iface_no = data_ifcno = cmd->bDataInterface;
printf("%s: data interface %d, has %sCM over data, has %sbreak\n",
devname, data_ifcno,
sc->sc_cm_cap & USB_CDC_CM_OVER_DATA ? "" : "no ",
sc->sc_acm_cap & USB_CDC_ACM_HAS_BREAK ? "" : "no ");
/* Get the data interface too. */
for (i = 0; i < uaa->nifaces; i++) {
if (uaa->ifaces[i] != NULL) {
id = usbd_get_interface_descriptor(uaa->ifaces[i]);
if (id != NULL && id->bInterfaceNumber == data_ifcno) {
sc->sc_data_iface = uaa->ifaces[i];
uaa->ifaces[i] = NULL;
}
}
}
if (sc->sc_data_iface == NULL) {
printf("%s: no data interface\n", devname);
goto bad;
}
ucom->sc_iface = sc->sc_data_iface;
/*
* Find the bulk endpoints.
* Iterate over all endpoints in the data interface and take note.
*/
ucom->sc_bulkin_no = ucom->sc_bulkout_no = -1;
id = usbd_get_interface_descriptor(sc->sc_data_iface);
for (i = 0; i < id->bNumEndpoints; i++) {
ed = usbd_interface2endpoint_descriptor(sc->sc_data_iface, i);
if (ed == NULL) {
printf("%s: no endpoint descriptor for %d\n", devname,
i);
goto bad;
}
if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
ucom->sc_bulkin_no = ed->bEndpointAddress;
} else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
ucom->sc_bulkout_no = ed->bEndpointAddress;
}
}
if (ucom->sc_bulkin_no == -1) {
printf("%s: Could not find data bulk in\n", devname);
goto bad;
}
if (ucom->sc_bulkout_no == -1) {
printf("%s: Could not find data bulk out\n", devname);
goto bad;
}
if (usbd_get_quirks(sc->sc_udev)->uq_flags & UQ_ASSUME_CM_OVER_DATA) {
DPRINTF(("Quirk says to assume CM over data\n"));
sc->sc_cm_over_data = 1;
} else {
if (sc->sc_cm_cap & USB_CDC_CM_OVER_DATA) {
if (sc->sc_acm_cap & USB_CDC_ACM_HAS_FEATURE)
err = umodem_set_comm_feature(sc,
UCDC_ABSTRACT_STATE, UCDC_DATA_MULTIPLEXED);
else
err = 0;
if (err) {
printf("%s: could not set data multiplex mode\n",
devname);
goto bad;
}
sc->sc_cm_over_data = 1;
}
}
/*
* The standard allows for notification messages (to indicate things
* like a modem hangup) to come in via an interrupt endpoint
* off of the control interface. Iterate over the endpoints on
* the control interface and see if there are any interrupt
* endpoints; if there are, then register it.
*/
sc->sc_ctl_notify = -1;
sc->sc_notify_pipe = NULL;
for (i = 0; i < id->bNumEndpoints; i++) {
ed = usbd_interface2endpoint_descriptor(sc->sc_ctl_iface, i);
if (ed == NULL)
continue;
if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
(ed->bmAttributes & UE_XFERTYPE) == UE_INTERRUPT) {
printf("%s: status change notification available\n",
devname);
sc->sc_ctl_notify = ed->bEndpointAddress;
}
}
sc->sc_dtr = -1;
ucom->sc_parent = sc;
ucom->sc_portno = UCOM_UNK_PORTNO;
/* bulkin, bulkout set above */
ucom->sc_ibufsize = UMODEMIBUFSIZE;
ucom->sc_obufsize = UMODEMOBUFSIZE;
ucom->sc_ibufsizepad = UMODEMIBUFSIZE;
ucom->sc_opkthdrlen = 0;
ucom->sc_callback = &umodem_callback;
TASK_INIT(&sc->sc_task, 0, umodem_notify, sc);
ucom_attach(&sc->sc_ucom);
free(devinfo, M_USBDEV);
USB_ATTACH_SUCCESS_RETURN;
bad:
ucom->sc_dying = 1;
free(devinfo, M_USBDEV);
USB_ATTACH_ERROR_RETURN;
}
Static int
umodem_open(void *addr, int portno)
{
struct umodem_softc *sc = addr;
int err;
DPRINTF(("umodem_open: sc=%p\n", sc));
if (sc->sc_ctl_notify != -1 && sc->sc_notify_pipe == NULL) {
err = usbd_open_pipe_intr(sc->sc_ctl_iface, sc->sc_ctl_notify,
USBD_SHORT_XFER_OK, &sc->sc_notify_pipe, sc,
&sc->sc_notify_buf, sizeof(sc->sc_notify_buf),
umodem_intr, USBD_DEFAULT_INTERVAL);
if (err) {
DPRINTF(("Failed to establish notify pipe: %s\n",
usbd_errstr(err)));
return EIO;
}
}
return 0;
}
Static void
umodem_close(void *addr, int portno)
{
struct umodem_softc *sc = addr;
int err;
DPRINTF(("umodem_close: sc=%p\n", sc));
if (sc->sc_notify_pipe != NULL) {
err = usbd_abort_pipe(sc->sc_notify_pipe);
if (err)
printf("%s: abort notify pipe failed: %s\n",
USBDEVNAME(sc->sc_dev), usbd_errstr(err));
err = usbd_close_pipe(sc->sc_notify_pipe);
if (err)
printf("%s: close notify pipe failed: %s\n",
USBDEVNAME(sc->sc_dev), usbd_errstr(err));
sc->sc_notify_pipe = NULL;
}
}
Static void
umodem_intr(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
{
struct umodem_softc *sc = priv;
u_char mstatus;
if (sc->sc_ucom.sc_dying)
return;
if (status != USBD_NORMAL_COMPLETION) {
if (status == USBD_NOT_STARTED || status == USBD_CANCELLED)
return;
printf("%s: abnormal status: %s\n", USBDEVNAME(sc->sc_dev),
usbd_errstr(status));
return;
}
if (sc->sc_notify_buf.bmRequestType != UCDC_NOTIFICATION) {
DPRINTF(("%s: unknown message type (%02x) on notify pipe\n",
USBDEVNAME(sc->sc_dev),
sc->sc_notify_buf.bmRequestType));
return;
}
switch (sc->sc_notify_buf.bNotification) {
case UCDC_N_SERIAL_STATE:
/*
* Set the serial state in ucom driver based on
* the bits from the notify message
*/
if (UGETW(sc->sc_notify_buf.wLength) != 2) {
printf("%s: Invalid notification length! (%d)\n",
USBDEVNAME(sc->sc_dev),
UGETW(sc->sc_notify_buf.wLength));
break;
}
DPRINTF(("%s: notify bytes = %02x%02x\n",
USBDEVNAME(sc->sc_dev),
sc->sc_notify_buf.data[0],
sc->sc_notify_buf.data[1]));
/* Currently, lsr is always zero. */
sc->sc_lsr = sc->sc_msr = 0;
mstatus = sc->sc_notify_buf.data[0];
if (ISSET(mstatus, UCDC_N_SERIAL_RI))
sc->sc_msr |= SER_RI;
if (ISSET(mstatus, UCDC_N_SERIAL_DSR))
sc->sc_msr |= SER_DSR;
if (ISSET(mstatus, UCDC_N_SERIAL_DCD))
sc->sc_msr |= SER_DCD;
/* Deferred notifying to the ucom layer */
taskqueue_enqueue(taskqueue_swi_giant, &sc->sc_task);
break;
default:
DPRINTF(("%s: unknown notify message: %02x\n",
USBDEVNAME(sc->sc_dev),
sc->sc_notify_buf.bNotification));
break;
}
}
Static void
umodem_notify(void *arg, int count)
{
struct umodem_softc *sc;
sc = (struct umodem_softc *)arg;
if (sc->sc_ucom.sc_dying)
return;
ucom_status_change(&sc->sc_ucom);
}
void
umodem_get_caps(usbd_device_handle dev, int *cm, int *acm)
{
usb_cdc_cm_descriptor_t *cmd;
usb_cdc_acm_descriptor_t *cad;
*cm = *acm = 0;
cmd = umodem_get_desc(dev, UDESC_CS_INTERFACE, UDESCSUB_CDC_CM);
if (cmd == NULL) {
DPRINTF(("umodem_get_desc: no CM desc\n"));
return;
}
*cm = cmd->bmCapabilities;
cad = umodem_get_desc(dev, UDESC_CS_INTERFACE, UDESCSUB_CDC_ACM);
if (cad == NULL) {
DPRINTF(("umodem_get_desc: no ACM desc\n"));
return;
}
*acm = cad->bmCapabilities;
}
void
umodem_get_status(void *addr, int portno, u_char *lsr, u_char *msr)
{
struct umodem_softc *sc = addr;
DPRINTF(("umodem_get_status:\n"));
if (lsr != NULL)
*lsr = sc->sc_lsr;
if (msr != NULL)
*msr = sc->sc_msr;
}
int
umodem_param(void *addr, int portno, struct termios *t)
{
struct umodem_softc *sc = addr;
usbd_status err;
usb_cdc_line_state_t ls;
DPRINTF(("umodem_param: sc=%p\n", sc));
USETDW(ls.dwDTERate, t->c_ospeed);
if (ISSET(t->c_cflag, CSTOPB))
ls.bCharFormat = UCDC_STOP_BIT_2;
else
ls.bCharFormat = UCDC_STOP_BIT_1;
if (ISSET(t->c_cflag, PARENB)) {
if (ISSET(t->c_cflag, PARODD))
ls.bParityType = UCDC_PARITY_ODD;
else
ls.bParityType = UCDC_PARITY_EVEN;
} else
ls.bParityType = UCDC_PARITY_NONE;
switch (ISSET(t->c_cflag, CSIZE)) {
case CS5:
ls.bDataBits = 5;
break;
case CS6:
ls.bDataBits = 6;
break;
case CS7:
ls.bDataBits = 7;
break;
case CS8:
ls.bDataBits = 8;
break;
}
err = umodem_set_line_coding(sc, &ls);
if (err) {
DPRINTF(("umodem_param: err=%s\n", usbd_errstr(err)));
return (ENOTTY);
}
return (0);
}
int
umodem_ioctl(void *addr, int portno, u_long cmd, caddr_t data, int flag,
usb_proc_ptr p)
{
struct umodem_softc *sc = addr;
int error = 0;
if (sc->sc_ucom.sc_dying)
return (EIO);
DPRINTF(("umodemioctl: cmd=0x%08lx\n", cmd));
switch (cmd) {
case USB_GET_CM_OVER_DATA:
*(int *)data = sc->sc_cm_over_data;
break;
case USB_SET_CM_OVER_DATA:
if (*(int *)data != sc->sc_cm_over_data) {
/* XXX change it */
}
break;
default:
DPRINTF(("umodemioctl: unknown\n"));
error = ENOTTY;
break;
}
return (error);
}
void
umodem_dtr(struct umodem_softc *sc, int onoff)
{
DPRINTF(("umodem_modem: onoff=%d\n", onoff));
if (sc->sc_dtr == onoff)
return;
sc->sc_dtr = onoff;
umodem_set_line_state(sc);
}
void
umodem_rts(struct umodem_softc *sc, int onoff)
{
DPRINTF(("umodem_modem: onoff=%d\n", onoff));
if (sc->sc_rts == onoff)
return;
sc->sc_rts = onoff;
umodem_set_line_state(sc);
}
void
umodem_set_line_state(struct umodem_softc *sc)
{
usb_device_request_t req;
int ls;
ls = (sc->sc_dtr ? UCDC_LINE_DTR : 0) |
(sc->sc_rts ? UCDC_LINE_RTS : 0);
req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
req.bRequest = UCDC_SET_CONTROL_LINE_STATE;
USETW(req.wValue, ls);
USETW(req.wIndex, sc->sc_ctl_iface_no);
USETW(req.wLength, 0);
(void)usbd_do_request(sc->sc_udev, &req, 0);
}
void
umodem_break(struct umodem_softc *sc, int onoff)
{
usb_device_request_t req;
DPRINTF(("umodem_break: onoff=%d\n", onoff));
if (!(sc->sc_acm_cap & USB_CDC_ACM_HAS_BREAK))
return;
req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
req.bRequest = UCDC_SEND_BREAK;
USETW(req.wValue, onoff ? UCDC_BREAK_ON : UCDC_BREAK_OFF);
USETW(req.wIndex, sc->sc_ctl_iface_no);
USETW(req.wLength, 0);
(void)usbd_do_request(sc->sc_udev, &req, 0);
}
void
umodem_set(void *addr, int portno, int reg, int onoff)
{
struct umodem_softc *sc = addr;
switch (reg) {
case UCOM_SET_DTR:
umodem_dtr(sc, onoff);
break;
case UCOM_SET_RTS:
umodem_rts(sc, onoff);
break;
case UCOM_SET_BREAK:
umodem_break(sc, onoff);
break;
default:
break;
}
}
usbd_status
umodem_set_line_coding(struct umodem_softc *sc, usb_cdc_line_state_t *state)
{
usb_device_request_t req;
usbd_status err;
DPRINTF(("umodem_set_line_coding: rate=%d fmt=%d parity=%d bits=%d\n",
UGETDW(state->dwDTERate), state->bCharFormat,
state->bParityType, state->bDataBits));
if (memcmp(state, &sc->sc_line_state, UCDC_LINE_STATE_LENGTH) == 0) {
DPRINTF(("umodem_set_line_coding: already set\n"));
return (USBD_NORMAL_COMPLETION);
}
req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
req.bRequest = UCDC_SET_LINE_CODING;
USETW(req.wValue, 0);
USETW(req.wIndex, sc->sc_ctl_iface_no);
USETW(req.wLength, UCDC_LINE_STATE_LENGTH);
err = usbd_do_request(sc->sc_udev, &req, state);
if (err) {
DPRINTF(("umodem_set_line_coding: failed, err=%s\n",
usbd_errstr(err)));
return (err);
}
sc->sc_line_state = *state;
return (USBD_NORMAL_COMPLETION);
}
void *
umodem_get_desc(usbd_device_handle dev, int type, int subtype)
{
usb_descriptor_t *desc;
usb_config_descriptor_t *cd = usbd_get_config_descriptor(dev);
uByte *p = (uByte *)cd;
uByte *end = p + UGETW(cd->wTotalLength);
while (p < end) {
desc = (usb_descriptor_t *)p;
if (desc->bDescriptorType == type &&
desc->bDescriptorSubtype == subtype)
return (desc);
p += desc->bLength;
}
return (0);
}
usbd_status
umodem_set_comm_feature(struct umodem_softc *sc, int feature, int state)
{
usb_device_request_t req;
usbd_status err;
usb_cdc_abstract_state_t ast;
DPRINTF(("umodem_set_comm_feature: feature=%d state=%d\n", feature,
state));
req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
req.bRequest = UCDC_SET_COMM_FEATURE;
USETW(req.wValue, feature);
USETW(req.wIndex, sc->sc_ctl_iface_no);
USETW(req.wLength, UCDC_ABSTRACT_STATE_LENGTH);
USETW(ast.wState, state);
err = usbd_do_request(sc->sc_udev, &req, &ast);
if (err) {
DPRINTF(("umodem_set_comm_feature: feature=%d, err=%s\n",
feature, usbd_errstr(err)));
return (err);
}
return (USBD_NORMAL_COMPLETION);
}
USB_DETACH(umodem)
{
USB_DETACH_START(umodem, sc);
int rv = 0;
DPRINTF(("umodem_detach: sc=%p\n", sc));
if (sc->sc_notify_pipe != NULL) {
usbd_abort_pipe(sc->sc_notify_pipe);
usbd_close_pipe(sc->sc_notify_pipe);
sc->sc_notify_pipe = NULL;
}
sc->sc_ucom.sc_dying = 1;
rv = ucom_detach(&sc->sc_ucom);
return (rv);
}
|