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
|
/* $NetBSD: ubt.c,v 1.10 2004/01/04 05:47:43 dsainty Exp $ */
/*
* Copyright (c) 2002, 2003 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Lennart Augustsson (lennart@augustsson.net) and
* David Sainty (David.Sainty@dtsp.co.nz).
*
* 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.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: ubt.c,v 1.10 2004/01/04 05:47:43 dsainty Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/device.h>
#include <sys/lock.h>
#include <sys/ioctl.h>
#include <sys/conf.h>
#include <sys/file.h>
#include <sys/poll.h>
#include <sys/select.h>
#include <sys/proc.h>
#include <dev/usb/ubtreg.h>
#include <dev/usb/usb.h>
#include <dev/usb/usbdi.h>
#include <dev/usb/usbdi_util.h>
#include <dev/usb/usbdevs.h>
#include <dev/bluetooth/bluetooth.h>
#ifdef UBT_DEBUG
#define DPRINTF(x) if (ubtdebug) logprintf x
#define DPRINTFN(n,x) if (ubtdebug>(n)) logprintf x
int ubtdebug = 49;
#else
#define DPRINTF(x)
#define DPRINTFN(n,x)
#endif
/*
* Protocol related definitions
*/
struct ubt_softc {
USBBASEDEVICE sc_dev;
usbd_device_handle sc_udev;
usbd_interface_handle sc_ctl_iface;
usbd_interface_handle sc_isoc_iface;
/* Control */
usbd_pipe_handle sc_ctl_pipe;
usbd_xfer_handle sc_ctl_xfer;
u_int8_t *sc_ctl_buf;
/* Events */
int sc_evt_addr;
usbd_pipe_handle sc_evt_pipe;
usbd_xfer_handle sc_evt_xfer;
u_int8_t *sc_evt_buf;
/* ACL data (in) */
int sc_aclrd_addr;
usbd_pipe_handle sc_aclrd_pipe;
usbd_xfer_handle sc_aclrd_xfer;
u_int8_t *sc_aclrd_buf;
int sc_aclrd_running;
/* ACL data (out) */
int sc_aclwr_addr;
usbd_pipe_handle sc_aclwr_pipe;
usbd_xfer_handle sc_aclwr_xfer;
u_int8_t *sc_aclwr_buf;
struct device *sc_child;
struct btframe_callback_methods const *sc_cb;
int sc_refcnt;
char sc_dying;
};
static int ubt_open(void *h, int flag, int mode, usb_proc_ptr p);
static int ubt_close(void *h, int flag, int mode, usb_proc_ptr p);
static u_int8_t* ubt_alloc_control(void*, size_t, struct btframe_buffer**);
static int ubt_send_control(void*, struct btframe_buffer*, size_t);
static u_int8_t* ubt_alloc_acldata(void*, size_t, struct btframe_buffer**);
static int ubt_send_acldata(void*, struct btframe_buffer*, size_t);
static u_int8_t* ubt_alloc_scodata(void*, size_t, struct btframe_buffer**);
static int ubt_send_scodata(void*, struct btframe_buffer*, size_t);
static int ubt_splraise(void);
static void ubt_event_cb(usbd_xfer_handle, usbd_private_handle, usbd_status);
static void ubt_aclrd_cb(usbd_xfer_handle, usbd_private_handle, usbd_status);
static void ubt_aclrd_request(struct ubt_softc *);
static struct btframe_methods const ubt_methods = {
ubt_open, ubt_close,
{ubt_alloc_control, ubt_send_control},
{ubt_alloc_acldata, ubt_send_acldata},
{ubt_alloc_scodata, ubt_send_scodata},
ubt_splraise
};
USB_DECLARE_DRIVER(ubt);
USB_MATCH(ubt)
{
USB_MATCH_START(ubt, uaa);
usb_interface_descriptor_t *id;
DPRINTFN(50,("ubt_match\n"));
if (uaa->iface == NULL)
return (UMATCH_NONE);
id = usbd_get_interface_descriptor(uaa->iface);
if (id != NULL &&
id->bInterfaceClass == UICLASS_WIRELESS &&
id->bInterfaceSubClass == UISUBCLASS_RF &&
id->bInterfaceProtocol == UIPROTO_BLUETOOTH)
return (UMATCH_IFACECLASS_IFACESUBCLASS_IFACEPROTO);
return (UMATCH_NONE);
}
USB_ATTACH(ubt)
{
USB_ATTACH_START(ubt, sc, uaa);
usbd_device_handle dev = uaa->device;
usbd_interface_handle iface = uaa->iface;
struct bt_attach_args bt;
usb_interface_descriptor_t const *id;
char devinfo[1024];
usb_endpoint_descriptor_t const *ed;
u_int8_t epcount;
int i;
DPRINTFN(10,("ubt_attach: sc=%p\n", sc));
usbd_devinfo(dev, 0, devinfo);
USB_ATTACH_SETUP;
printf("%s: %s\n", USBDEVNAME(sc->sc_dev), devinfo);
sc->sc_udev = dev;
sc->sc_ctl_iface = iface;
/*
* The control interface comes before the isoc interface
* according to the spec, so we find it first.
*/
epcount = 0;
(void)usbd_endpoint_count(iface, &epcount);
sc->sc_evt_addr = -1;
sc->sc_aclrd_addr = -1;
sc->sc_aclwr_addr = -1;
for (i = 0; i < epcount; i++) {
ed = usbd_interface2endpoint_descriptor(iface, i);
if (ed == NULL) {
printf("%s: couldn't get ep %d\n",
USBDEVNAME(sc->sc_dev), i);
USB_ATTACH_ERROR_RETURN;
}
DPRINTFN(10, ("%s: addr=%d attr=%d\n", __func__,
(int)ed->bEndpointAddress,
(int)ed->bmAttributes));
if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) {
sc->sc_evt_addr = ed->bEndpointAddress;
} else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
sc->sc_aclrd_addr = ed->bEndpointAddress;
} else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
sc->sc_aclwr_addr = ed->bEndpointAddress;
}
}
if (sc->sc_evt_addr == -1 ||
sc->sc_aclrd_addr == -1 || sc->sc_aclwr_addr == -1) {
printf("%s: missing endpoint\n", USBDEVNAME(sc->sc_dev));
USB_ATTACH_ERROR_RETURN;
}
/* XXX works because isoc comes after ctl */
/* Grab isoc interface as well. */
for (i = 0; i < uaa->nifaces; i++) {
if (uaa->ifaces[i] == NULL)
continue;
id = usbd_get_interface_descriptor(uaa->ifaces[i]);
if (id != NULL &&
id->bInterfaceClass == UICLASS_WIRELESS &&
id->bInterfaceSubClass == UISUBCLASS_RF &&
id->bInterfaceProtocol == UIPROTO_BLUETOOTH) {
sc->sc_isoc_iface = uaa->ifaces[i];
uaa->ifaces[i] = NULL;
}
}
printf("%s: has%s isoc data\n", USBDEVNAME(sc->sc_dev),
sc->sc_isoc_iface != NULL ? "" : " no");
usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev,
USBDEV(sc->sc_dev));
bt.bt_methods = &ubt_methods;
bt.bt_cb = &sc->sc_cb;
bt.bt_handle = sc;
sc->sc_child = config_found(self, &bt, bt_print);
USB_ATTACH_SUCCESS_RETURN;
}
static void
ubt_abortdealloc(struct ubt_softc *sc)
{
DPRINTFN(0, ("%s: sc=%p\n", __func__, sc));
if (sc->sc_evt_pipe != NULL) {
usbd_abort_pipe(sc->sc_evt_pipe);
usbd_close_pipe(sc->sc_evt_pipe);
sc->sc_evt_pipe = NULL;
}
if (sc->sc_evt_buf != NULL) {
free(sc->sc_evt_buf, M_USBDEV);
sc->sc_evt_buf = NULL;
}
if (sc->sc_aclrd_pipe != NULL) {
usbd_abort_pipe(sc->sc_aclrd_pipe);
usbd_close_pipe(sc->sc_aclrd_pipe);
sc->sc_aclrd_pipe = NULL;
}
if (sc->sc_aclwr_pipe != NULL) {
usbd_abort_pipe(sc->sc_aclwr_pipe);
usbd_close_pipe(sc->sc_aclwr_pipe);
sc->sc_aclwr_pipe = NULL;
}
if (sc->sc_aclrd_xfer != NULL) {
usbd_free_xfer(sc->sc_aclrd_xfer);
sc->sc_aclrd_xfer = NULL;
sc->sc_aclrd_buf = NULL;
}
if (sc->sc_aclwr_xfer != NULL) {
usbd_free_xfer(sc->sc_aclwr_xfer);
sc->sc_aclwr_xfer = NULL;
sc->sc_aclwr_buf = NULL;
}
}
USB_DETACH(ubt)
{
USB_DETACH_START(ubt, sc);
int s;
int rv = 0;
DPRINTF(("%s: sc=%p flags=%d\n", __func__, sc, flags));
sc->sc_dying = 1;
/* Abort all pipes. Causes processes waiting for transfer to wake. */
ubt_abortdealloc(sc);
DPRINTFN(1, ("%s: waiting for USB detach\n", __func__));
s = splusb();
if (--sc->sc_refcnt >= 0) {
/* Wait for processes to go away. */
usb_detach_wait(USBDEV(sc->sc_dev));
}
splx(s);
DPRINTFN(1, ("%s: USB detach complete\n", __func__));
if (sc->sc_child != NULL) {
DPRINTFN(1, ("%s: waiting for child detach\n", __func__));
rv = config_detach(sc->sc_child, flags);
sc->sc_child = NULL;
DPRINTFN(1, ("%s: child detach complete\n", __func__));
}
usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev,
USBDEV(sc->sc_dev));
DPRINTFN(1, ("%s: driver detached\n", __func__));
return (rv);
}
int
ubt_activate(device_ptr_t self, enum devact act)
{
struct ubt_softc *sc = (struct ubt_softc *)self;
int error = 0;
switch (act) {
case DVACT_ACTIVATE:
return (EOPNOTSUPP);
break;
case DVACT_DEACTIVATE:
sc->sc_dying = 1;
if (sc->sc_child != NULL)
error = config_deactivate(sc->sc_child);
break;
}
return (error);
}
static int
ubt_open(void *h, int flag, int mode, usb_proc_ptr p)
{
struct ubt_softc *sc = h;
int error;
usbd_status err;
DPRINTFN(0, ("%s: sc=%p\n", __func__, sc));
sc->sc_evt_buf = malloc(BTHCI_EVENT_MAX_LEN, M_USBDEV, M_NOWAIT);
if (sc->sc_evt_buf == NULL) {
error = ENOMEM;
goto bad0;
}
err = usbd_open_pipe_intr(sc->sc_ctl_iface, sc->sc_evt_addr,
USBD_SHORT_XFER_OK, &sc->sc_evt_pipe,
sc, sc->sc_evt_buf, BTHCI_EVENT_MAX_LEN,
ubt_event_cb, UBT_EVENT_EP_INTERVAL);
if (err != USBD_NORMAL_COMPLETION) {
error = EIO;
goto bad1;
}
err = usbd_open_pipe(sc->sc_ctl_iface, sc->sc_aclrd_addr,
0, &sc->sc_aclrd_pipe);
if (err != USBD_NORMAL_COMPLETION) {
error = EIO;
goto bad2;
}
err = usbd_open_pipe(sc->sc_ctl_iface, sc->sc_aclwr_addr,
0, &sc->sc_aclwr_pipe);
if (err != USBD_NORMAL_COMPLETION) {
error = EIO;
goto bad3;
}
sc->sc_ctl_xfer = usbd_alloc_xfer(sc->sc_udev);
if (sc->sc_ctl_xfer == NULL) {
error = ENOMEM;
goto bad4;
}
sc->sc_aclrd_xfer = usbd_alloc_xfer(sc->sc_udev);
if (sc->sc_aclrd_xfer == NULL) {
error = ENOMEM;
goto bad5;
}
sc->sc_aclwr_xfer = usbd_alloc_xfer(sc->sc_udev);
if (sc->sc_aclwr_xfer == NULL) {
error = ENOMEM;
goto bad6;
}
/* Buffers */
sc->sc_ctl_buf = usbd_alloc_buffer(sc->sc_ctl_xfer,
BTHCI_COMMAND_MAX_LEN);
if (sc->sc_ctl_buf == NULL) {
error = ENOMEM;
goto bad7;
}
sc->sc_aclrd_buf = usbd_alloc_buffer(sc->sc_aclrd_xfer,
BTHCI_ACL_DATA_MAX_LEN);
if (sc->sc_aclrd_buf == NULL) {
error = ENOMEM;
goto bad7;
}
sc->sc_aclwr_buf = usbd_alloc_buffer(sc->sc_aclwr_xfer,
BTHCI_ACL_DATA_MAX_LEN);
if (sc->sc_aclwr_buf == NULL) {
error = ENOMEM;
goto bad7;
}
/* Start reading */
ubt_aclrd_request(sc);
return 0;
bad7:
usbd_free_xfer(sc->sc_aclwr_xfer);
sc->sc_aclwr_xfer = NULL;
bad6:
usbd_free_xfer(sc->sc_aclrd_xfer);
sc->sc_aclrd_xfer = NULL;
bad5:
usbd_free_xfer(sc->sc_ctl_xfer);
sc->sc_ctl_xfer = NULL;
bad4:
usbd_close_pipe(sc->sc_aclwr_pipe);
sc->sc_aclwr_pipe = NULL;
bad3:
usbd_close_pipe(sc->sc_aclrd_pipe);
sc->sc_aclrd_pipe = NULL;
bad2:
usbd_close_pipe(sc->sc_evt_pipe);
sc->sc_evt_pipe = NULL;
bad1:
free(sc->sc_evt_buf, M_USBDEV);
sc->sc_evt_buf = NULL;
bad0:
return error;
}
static int
ubt_close(void *h, int flag, int mode, usb_proc_ptr p)
{
struct ubt_softc *sc = h;
DPRINTFN(0, ("%s: sc=%p\n", __func__, sc));
ubt_abortdealloc(sc);
return 0;
}
static u_int8_t*
ubt_alloc_control(void *h, size_t len, struct btframe_buffer **buf)
{
struct ubt_softc *sc = h;
/*
* We should be catching this earlier, but at the moment a
* user request can generate oversized allocations.
*/
if (len > BTHCI_COMMAND_MAX_LEN)
return NULL;
*buf = (struct btframe_buffer*)sc->sc_ctl_buf;
return sc->sc_ctl_buf;
}
static int
ubt_send_control(void *h, struct btframe_buffer *buf, size_t len)
{
struct ubt_softc *sc = h;
usb_device_request_t req;
usbd_status status;
DPRINTFN(1,("%s: sc=%p\n", __func__, sc));
#ifdef DIAGNOSTIC
if ((u_int8_t*)buf != sc->sc_ctl_buf)
panic("ubt_control() called with wrong buffer");
#endif
if (sc->sc_dying)
return EIO;
if (len < BTHCI_COMMAND_MIN_LEN || len > BTHCI_COMMAND_MAX_LEN)
return EINVAL;
sc->sc_refcnt++;
memset(&req, 0, sizeof(req));
req.bmRequestType = UT_WRITE_CLASS_DEVICE;
USETW(req.wLength, len);
usbd_setup_default_xfer(sc->sc_ctl_xfer,
sc->sc_udev,
sc,
USBD_DEFAULT_TIMEOUT,
&req, sc->sc_ctl_buf, len,
USBD_SYNCHRONOUS | USBD_NO_COPY, NULL);
status = usbd_transfer(sc->sc_ctl_xfer);
if (--sc->sc_refcnt < 0)
usb_detach_wakeup(USBDEV(sc->sc_dev));
if (status != USBD_NORMAL_COMPLETION)
return EIO;
return 0;
}
static u_int8_t*
ubt_alloc_acldata(void *h, size_t len, struct btframe_buffer **buf)
{
struct ubt_softc *sc = h;
/*
* We should be catching this earlier, but at the moment a
* user request can generate oversized allocations.
*/
if (len > BTHCI_ACL_DATA_MAX_LEN)
return NULL;
*buf = (struct btframe_buffer*)sc->sc_aclwr_buf;
return sc->sc_aclwr_buf;
}
static int
ubt_send_acldata(void *h, struct btframe_buffer *buf, size_t len)
{
struct ubt_softc *sc = h;
usbd_status status;
DPRINTFN(1,("%s: sc=%p\n", __func__, sc));
#ifdef DIAGNOSTIC
if ((u_int8_t*)buf != sc->sc_aclwr_buf)
panic("ubt_sendacldata() called with wrong buffer");
#endif
if (sc->sc_dying)
return EIO;
if (len < BTHCI_ACL_DATA_MIN_LEN || len > BTHCI_ACL_DATA_MAX_LEN)
return EINVAL;
sc->sc_refcnt++;
usbd_setup_xfer(sc->sc_aclwr_xfer,
sc->sc_aclwr_pipe,
(usbd_private_handle)sc,
sc->sc_aclwr_buf, len,
USBD_SYNCHRONOUS | USBD_NO_COPY,
USBD_DEFAULT_TIMEOUT,
NULL);
status = usbd_transfer(sc->sc_aclwr_xfer);
if (--sc->sc_refcnt < 0)
usb_detach_wakeup(USBDEV(sc->sc_dev));
if (status != USBD_NORMAL_COMPLETION)
return EIO;
return 0;
}
static u_int8_t*
ubt_alloc_scodata(void *h, size_t len, struct btframe_buffer **buf)
{
return NULL;
}
static int
ubt_send_scodata(void *h, struct btframe_buffer *buf, size_t len)
{
struct ubt_softc *sc = h;
DPRINTFN(1,("%s: sc=%p\n", __func__, sc));
if (sc->sc_dying)
return EIO;
return ENXIO;
}
static void
ubt_event_cb(usbd_xfer_handle xfer, usbd_private_handle h, usbd_status status)
{
struct ubt_softc *sc = h;
void *buf;
u_int32_t size;
DPRINTFN(1,("%s: sc=%p status=%s\n", __func__, sc,
usbd_errstr(status)));
if (status != USBD_NORMAL_COMPLETION || sc->sc_dying ||
sc->sc_child == NULL)
return;
usbd_get_xfer_status(xfer, NULL, &buf, &size, NULL);
sc->sc_cb->bt_recveventdata(sc->sc_child, buf, (size_t)size);
}
static void
ubt_aclrd_request(struct ubt_softc *sc)
{
usbd_status status;
int s;
DPRINTFN(1,("%s: sc=%p\n", __func__, sc));
if (sc->sc_dying)
return;
s = splusb();
if (sc->sc_aclrd_running) {
splx(s);
return;
}
sc->sc_aclrd_running = 1;
splx(s);
usbd_setup_xfer(sc->sc_aclrd_xfer, sc->sc_aclrd_pipe,
sc, sc->sc_aclrd_buf, BTHCI_ACL_DATA_MAX_LEN,
USBD_SHORT_XFER_OK | USBD_NO_COPY,
USBD_NO_TIMEOUT, ubt_aclrd_cb);
status = usbd_transfer(sc->sc_aclrd_xfer);
/* Cancellation is normal on device shutdown */
if (status == USBD_IN_PROGRESS || status == USBD_CANCELLED)
return;
DPRINTFN(1,("%s: read request failed: %s\n", __func__,
usbd_errstr(status)));
sc->sc_aclrd_running = 0;
/* XXX now what!? */
}
static void
ubt_aclrd_cb(usbd_xfer_handle xfer, usbd_private_handle h, usbd_status status)
{
struct ubt_softc *sc = h;
void *buf;
u_int32_t size;
DPRINTFN(1,("%s: sc=%p status=%s\n", __func__, sc,
usbd_errstr(status)));
sc->sc_aclrd_running = 0;
if (status != USBD_NORMAL_COMPLETION || sc->sc_dying ||
sc->sc_child == NULL)
return;
usbd_get_xfer_status(xfer, NULL, &buf, &size, NULL);
sc->sc_cb->bt_recvacldata(sc->sc_child, buf, (size_t)size);
/* Re-issue the request */
if (!sc->sc_dying)
ubt_aclrd_request(sc);
}
static int
ubt_splraise(void)
{
return splusb();
}
|