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1da177e4 LT |
1 | /* |
2 | HCI USB driver for Linux Bluetooth protocol stack (BlueZ) | |
3 | Copyright (C) 2000-2001 Qualcomm Incorporated | |
4 | Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com> | |
5 | ||
6 | Copyright (C) 2003 Maxim Krasnyansky <maxk@qualcomm.com> | |
7 | ||
8 | This program is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License version 2 as | |
10 | published by the Free Software Foundation; | |
11 | ||
12 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS | |
13 | OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
14 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. | |
15 | IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY | |
16 | CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES | |
17 | WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN | |
18 | ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF | |
19 | OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |
20 | ||
21 | ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, | |
22 | COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS | |
23 | SOFTWARE IS DISCLAIMED. | |
24 | */ | |
25 | ||
26 | /* | |
27 | * Bluetooth HCI USB driver. | |
28 | * Based on original USB Bluetooth driver for Linux kernel | |
29 | * Copyright (c) 2000 Greg Kroah-Hartman <greg@kroah.com> | |
30 | * Copyright (c) 2000 Mark Douglas Corner <mcorner@umich.edu> | |
31 | * | |
32 | */ | |
33 | ||
34 | #include <linux/config.h> | |
35 | #include <linux/module.h> | |
36 | ||
37 | #include <linux/kernel.h> | |
38 | #include <linux/init.h> | |
39 | #include <linux/sched.h> | |
40 | #include <linux/unistd.h> | |
41 | #include <linux/types.h> | |
42 | #include <linux/interrupt.h> | |
43 | #include <linux/moduleparam.h> | |
44 | ||
45 | #include <linux/slab.h> | |
46 | #include <linux/errno.h> | |
47 | #include <linux/string.h> | |
48 | #include <linux/skbuff.h> | |
49 | ||
50 | #include <linux/usb.h> | |
51 | ||
52 | #include <net/bluetooth/bluetooth.h> | |
53 | #include <net/bluetooth/hci_core.h> | |
54 | ||
55 | #include "hci_usb.h" | |
56 | ||
57 | #ifndef CONFIG_BT_HCIUSB_DEBUG | |
58 | #undef BT_DBG | |
59 | #define BT_DBG(D...) | |
1da177e4 LT |
60 | #endif |
61 | ||
62 | #ifndef CONFIG_BT_HCIUSB_ZERO_PACKET | |
63 | #undef URB_ZERO_PACKET | |
64 | #define URB_ZERO_PACKET 0 | |
65 | #endif | |
66 | ||
67 | static int ignore = 0; | |
0915e886 MH |
68 | static int ignore_csr = 0; |
69 | static int ignore_sniffer = 0; | |
1da177e4 LT |
70 | static int reset = 0; |
71 | ||
72 | #ifdef CONFIG_BT_HCIUSB_SCO | |
73 | static int isoc = 2; | |
74 | #endif | |
75 | ||
0915e886 | 76 | #define VERSION "2.9" |
1da177e4 LT |
77 | |
78 | static struct usb_driver hci_usb_driver; | |
79 | ||
80 | static struct usb_device_id bluetooth_ids[] = { | |
81 | /* Generic Bluetooth USB device */ | |
82 | { USB_DEVICE_INFO(HCI_DEV_CLASS, HCI_DEV_SUBCLASS, HCI_DEV_PROTOCOL) }, | |
83 | ||
84 | /* AVM BlueFRITZ! USB v2.0 */ | |
85 | { USB_DEVICE(0x057c, 0x3800) }, | |
86 | ||
87 | /* Bluetooth Ultraport Module from IBM */ | |
88 | { USB_DEVICE(0x04bf, 0x030a) }, | |
89 | ||
90 | /* ALPS Modules with non-standard id */ | |
91 | { USB_DEVICE(0x044e, 0x3001) }, | |
92 | { USB_DEVICE(0x044e, 0x3002) }, | |
93 | ||
94 | /* Ericsson with non-standard id */ | |
95 | { USB_DEVICE(0x0bdb, 0x1002) }, | |
96 | ||
97 | { } /* Terminating entry */ | |
98 | }; | |
99 | ||
100 | MODULE_DEVICE_TABLE (usb, bluetooth_ids); | |
101 | ||
102 | static struct usb_device_id blacklist_ids[] = { | |
0915e886 MH |
103 | /* CSR BlueCore devices */ |
104 | { USB_DEVICE(0x0a12, 0x0001), .driver_info = HCI_CSR }, | |
105 | ||
1da177e4 LT |
106 | /* Broadcom BCM2033 without firmware */ |
107 | { USB_DEVICE(0x0a5c, 0x2033), .driver_info = HCI_IGNORE }, | |
108 | ||
109 | /* Broadcom BCM2035 */ | |
110 | { USB_DEVICE(0x0a5c, 0x200a), .driver_info = HCI_RESET | HCI_BROKEN_ISOC }, | |
111 | { USB_DEVICE(0x0a5c, 0x2009), .driver_info = HCI_BCM92035 }, | |
112 | ||
113 | /* Microsoft Wireless Transceiver for Bluetooth 2.0 */ | |
114 | { USB_DEVICE(0x045e, 0x009c), .driver_info = HCI_RESET }, | |
115 | ||
cad0f627 MH |
116 | /* Kensington Bluetooth USB adapter */ |
117 | { USB_DEVICE(0x047d, 0x105d), .driver_info = HCI_RESET }, | |
118 | ||
1da177e4 LT |
119 | /* ISSC Bluetooth Adapter v3.1 */ |
120 | { USB_DEVICE(0x1131, 0x1001), .driver_info = HCI_RESET }, | |
121 | ||
122 | /* RTX Telecom based adapter with buggy SCO support */ | |
123 | { USB_DEVICE(0x0400, 0x0807), .driver_info = HCI_BROKEN_ISOC }, | |
124 | ||
125 | /* Digianswer devices */ | |
126 | { USB_DEVICE(0x08fd, 0x0001), .driver_info = HCI_DIGIANSWER }, | |
127 | { USB_DEVICE(0x08fd, 0x0002), .driver_info = HCI_IGNORE }, | |
128 | ||
129 | /* CSR BlueCore Bluetooth Sniffer */ | |
130 | { USB_DEVICE(0x0a12, 0x0002), .driver_info = HCI_SNIFFER }, | |
131 | ||
132 | { } /* Terminating entry */ | |
133 | }; | |
134 | ||
dd0fc66f | 135 | static struct _urb *_urb_alloc(int isoc, gfp_t gfp) |
1da177e4 LT |
136 | { |
137 | struct _urb *_urb = kmalloc(sizeof(struct _urb) + | |
138 | sizeof(struct usb_iso_packet_descriptor) * isoc, gfp); | |
139 | if (_urb) { | |
140 | memset(_urb, 0, sizeof(*_urb)); | |
141 | usb_init_urb(&_urb->urb); | |
142 | } | |
143 | return _urb; | |
144 | } | |
145 | ||
146 | static struct _urb *_urb_dequeue(struct _urb_queue *q) | |
147 | { | |
148 | struct _urb *_urb = NULL; | |
149 | unsigned long flags; | |
150 | spin_lock_irqsave(&q->lock, flags); | |
151 | { | |
152 | struct list_head *head = &q->head; | |
153 | struct list_head *next = head->next; | |
154 | if (next != head) { | |
155 | _urb = list_entry(next, struct _urb, list); | |
156 | list_del(next); _urb->queue = NULL; | |
157 | } | |
158 | } | |
159 | spin_unlock_irqrestore(&q->lock, flags); | |
160 | return _urb; | |
161 | } | |
162 | ||
163 | static void hci_usb_rx_complete(struct urb *urb, struct pt_regs *regs); | |
164 | static void hci_usb_tx_complete(struct urb *urb, struct pt_regs *regs); | |
165 | ||
166 | #define __pending_tx(husb, type) (&husb->pending_tx[type-1]) | |
167 | #define __pending_q(husb, type) (&husb->pending_q[type-1]) | |
168 | #define __completed_q(husb, type) (&husb->completed_q[type-1]) | |
169 | #define __transmit_q(husb, type) (&husb->transmit_q[type-1]) | |
170 | #define __reassembly(husb, type) (husb->reassembly[type-1]) | |
171 | ||
172 | static inline struct _urb *__get_completed(struct hci_usb *husb, int type) | |
173 | { | |
174 | return _urb_dequeue(__completed_q(husb, type)); | |
175 | } | |
176 | ||
177 | #ifdef CONFIG_BT_HCIUSB_SCO | |
178 | static void __fill_isoc_desc(struct urb *urb, int len, int mtu) | |
179 | { | |
180 | int offset = 0, i; | |
181 | ||
182 | BT_DBG("len %d mtu %d", len, mtu); | |
183 | ||
184 | for (i=0; i < HCI_MAX_ISOC_FRAMES && len >= mtu; i++, offset += mtu, len -= mtu) { | |
185 | urb->iso_frame_desc[i].offset = offset; | |
186 | urb->iso_frame_desc[i].length = mtu; | |
187 | BT_DBG("desc %d offset %d len %d", i, offset, mtu); | |
188 | } | |
189 | if (len && i < HCI_MAX_ISOC_FRAMES) { | |
190 | urb->iso_frame_desc[i].offset = offset; | |
191 | urb->iso_frame_desc[i].length = len; | |
192 | BT_DBG("desc %d offset %d len %d", i, offset, len); | |
193 | i++; | |
194 | } | |
195 | urb->number_of_packets = i; | |
196 | } | |
197 | #endif | |
198 | ||
199 | static int hci_usb_intr_rx_submit(struct hci_usb *husb) | |
200 | { | |
201 | struct _urb *_urb; | |
202 | struct urb *urb; | |
203 | int err, pipe, interval, size; | |
204 | void *buf; | |
205 | ||
206 | BT_DBG("%s", husb->hdev->name); | |
207 | ||
208 | size = le16_to_cpu(husb->intr_in_ep->desc.wMaxPacketSize); | |
209 | ||
210 | buf = kmalloc(size, GFP_ATOMIC); | |
211 | if (!buf) | |
212 | return -ENOMEM; | |
213 | ||
214 | _urb = _urb_alloc(0, GFP_ATOMIC); | |
215 | if (!_urb) { | |
216 | kfree(buf); | |
217 | return -ENOMEM; | |
218 | } | |
219 | _urb->type = HCI_EVENT_PKT; | |
220 | _urb_queue_tail(__pending_q(husb, _urb->type), _urb); | |
221 | ||
222 | urb = &_urb->urb; | |
223 | pipe = usb_rcvintpipe(husb->udev, husb->intr_in_ep->desc.bEndpointAddress); | |
224 | interval = husb->intr_in_ep->desc.bInterval; | |
225 | usb_fill_int_urb(urb, husb->udev, pipe, buf, size, hci_usb_rx_complete, husb, interval); | |
226 | ||
227 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
228 | if (err) { | |
229 | BT_ERR("%s intr rx submit failed urb %p err %d", | |
230 | husb->hdev->name, urb, err); | |
231 | _urb_unlink(_urb); | |
232 | _urb_free(_urb); | |
233 | kfree(buf); | |
234 | } | |
235 | return err; | |
236 | } | |
237 | ||
238 | static int hci_usb_bulk_rx_submit(struct hci_usb *husb) | |
239 | { | |
240 | struct _urb *_urb; | |
241 | struct urb *urb; | |
242 | int err, pipe, size = HCI_MAX_FRAME_SIZE; | |
243 | void *buf; | |
244 | ||
245 | buf = kmalloc(size, GFP_ATOMIC); | |
246 | if (!buf) | |
247 | return -ENOMEM; | |
248 | ||
249 | _urb = _urb_alloc(0, GFP_ATOMIC); | |
250 | if (!_urb) { | |
251 | kfree(buf); | |
252 | return -ENOMEM; | |
253 | } | |
254 | _urb->type = HCI_ACLDATA_PKT; | |
255 | _urb_queue_tail(__pending_q(husb, _urb->type), _urb); | |
256 | ||
257 | urb = &_urb->urb; | |
258 | pipe = usb_rcvbulkpipe(husb->udev, husb->bulk_in_ep->desc.bEndpointAddress); | |
259 | usb_fill_bulk_urb(urb, husb->udev, pipe, buf, size, hci_usb_rx_complete, husb); | |
260 | urb->transfer_flags = 0; | |
261 | ||
262 | BT_DBG("%s urb %p", husb->hdev->name, urb); | |
263 | ||
264 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
265 | if (err) { | |
266 | BT_ERR("%s bulk rx submit failed urb %p err %d", | |
267 | husb->hdev->name, urb, err); | |
268 | _urb_unlink(_urb); | |
269 | _urb_free(_urb); | |
270 | kfree(buf); | |
271 | } | |
272 | return err; | |
273 | } | |
274 | ||
275 | #ifdef CONFIG_BT_HCIUSB_SCO | |
276 | static int hci_usb_isoc_rx_submit(struct hci_usb *husb) | |
277 | { | |
278 | struct _urb *_urb; | |
279 | struct urb *urb; | |
280 | int err, mtu, size; | |
281 | void *buf; | |
282 | ||
283 | mtu = le16_to_cpu(husb->isoc_in_ep->desc.wMaxPacketSize); | |
284 | size = mtu * HCI_MAX_ISOC_FRAMES; | |
285 | ||
286 | buf = kmalloc(size, GFP_ATOMIC); | |
287 | if (!buf) | |
288 | return -ENOMEM; | |
289 | ||
290 | _urb = _urb_alloc(HCI_MAX_ISOC_FRAMES, GFP_ATOMIC); | |
291 | if (!_urb) { | |
292 | kfree(buf); | |
293 | return -ENOMEM; | |
294 | } | |
295 | _urb->type = HCI_SCODATA_PKT; | |
296 | _urb_queue_tail(__pending_q(husb, _urb->type), _urb); | |
297 | ||
298 | urb = &_urb->urb; | |
299 | ||
300 | urb->context = husb; | |
301 | urb->dev = husb->udev; | |
302 | urb->pipe = usb_rcvisocpipe(husb->udev, husb->isoc_in_ep->desc.bEndpointAddress); | |
303 | urb->complete = hci_usb_rx_complete; | |
304 | ||
305 | urb->interval = husb->isoc_in_ep->desc.bInterval; | |
306 | ||
307 | urb->transfer_buffer_length = size; | |
308 | urb->transfer_buffer = buf; | |
309 | urb->transfer_flags = URB_ISO_ASAP; | |
310 | ||
311 | __fill_isoc_desc(urb, size, mtu); | |
312 | ||
313 | BT_DBG("%s urb %p", husb->hdev->name, urb); | |
314 | ||
315 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
316 | if (err) { | |
317 | BT_ERR("%s isoc rx submit failed urb %p err %d", | |
318 | husb->hdev->name, urb, err); | |
319 | _urb_unlink(_urb); | |
320 | _urb_free(_urb); | |
321 | kfree(buf); | |
322 | } | |
323 | return err; | |
324 | } | |
325 | #endif | |
326 | ||
327 | /* Initialize device */ | |
328 | static int hci_usb_open(struct hci_dev *hdev) | |
329 | { | |
330 | struct hci_usb *husb = (struct hci_usb *) hdev->driver_data; | |
331 | int i, err; | |
332 | unsigned long flags; | |
333 | ||
334 | BT_DBG("%s", hdev->name); | |
335 | ||
336 | if (test_and_set_bit(HCI_RUNNING, &hdev->flags)) | |
337 | return 0; | |
338 | ||
339 | write_lock_irqsave(&husb->completion_lock, flags); | |
340 | ||
341 | err = hci_usb_intr_rx_submit(husb); | |
342 | if (!err) { | |
343 | for (i = 0; i < HCI_MAX_BULK_RX; i++) | |
344 | hci_usb_bulk_rx_submit(husb); | |
345 | ||
346 | #ifdef CONFIG_BT_HCIUSB_SCO | |
347 | if (husb->isoc_iface) | |
348 | for (i = 0; i < HCI_MAX_ISOC_RX; i++) | |
349 | hci_usb_isoc_rx_submit(husb); | |
350 | #endif | |
351 | } else { | |
352 | clear_bit(HCI_RUNNING, &hdev->flags); | |
353 | } | |
354 | ||
355 | write_unlock_irqrestore(&husb->completion_lock, flags); | |
356 | return err; | |
357 | } | |
358 | ||
359 | /* Reset device */ | |
360 | static int hci_usb_flush(struct hci_dev *hdev) | |
361 | { | |
362 | struct hci_usb *husb = (struct hci_usb *) hdev->driver_data; | |
363 | int i; | |
364 | ||
365 | BT_DBG("%s", hdev->name); | |
366 | ||
367 | for (i = 0; i < 4; i++) | |
368 | skb_queue_purge(&husb->transmit_q[i]); | |
369 | return 0; | |
370 | } | |
371 | ||
372 | static void hci_usb_unlink_urbs(struct hci_usb *husb) | |
373 | { | |
374 | int i; | |
375 | ||
376 | BT_DBG("%s", husb->hdev->name); | |
377 | ||
378 | for (i = 0; i < 4; i++) { | |
379 | struct _urb *_urb; | |
380 | struct urb *urb; | |
381 | ||
382 | /* Kill pending requests */ | |
383 | while ((_urb = _urb_dequeue(&husb->pending_q[i]))) { | |
384 | urb = &_urb->urb; | |
385 | BT_DBG("%s unlinking _urb %p type %d urb %p", | |
386 | husb->hdev->name, _urb, _urb->type, urb); | |
387 | usb_kill_urb(urb); | |
388 | _urb_queue_tail(__completed_q(husb, _urb->type), _urb); | |
389 | } | |
390 | ||
391 | /* Release completed requests */ | |
392 | while ((_urb = _urb_dequeue(&husb->completed_q[i]))) { | |
393 | urb = &_urb->urb; | |
394 | BT_DBG("%s freeing _urb %p type %d urb %p", | |
395 | husb->hdev->name, _urb, _urb->type, urb); | |
e9a3e671 MH |
396 | kfree(urb->setup_packet); |
397 | kfree(urb->transfer_buffer); | |
1da177e4 LT |
398 | _urb_free(_urb); |
399 | } | |
400 | ||
401 | /* Release reassembly buffers */ | |
402 | if (husb->reassembly[i]) { | |
403 | kfree_skb(husb->reassembly[i]); | |
404 | husb->reassembly[i] = NULL; | |
405 | } | |
406 | } | |
407 | } | |
408 | ||
409 | /* Close device */ | |
410 | static int hci_usb_close(struct hci_dev *hdev) | |
411 | { | |
412 | struct hci_usb *husb = (struct hci_usb *) hdev->driver_data; | |
413 | unsigned long flags; | |
414 | ||
415 | if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags)) | |
416 | return 0; | |
417 | ||
418 | BT_DBG("%s", hdev->name); | |
419 | ||
420 | /* Synchronize with completion handlers */ | |
421 | write_lock_irqsave(&husb->completion_lock, flags); | |
422 | write_unlock_irqrestore(&husb->completion_lock, flags); | |
423 | ||
424 | hci_usb_unlink_urbs(husb); | |
425 | hci_usb_flush(hdev); | |
426 | return 0; | |
427 | } | |
428 | ||
429 | static int __tx_submit(struct hci_usb *husb, struct _urb *_urb) | |
430 | { | |
431 | struct urb *urb = &_urb->urb; | |
432 | int err; | |
433 | ||
434 | BT_DBG("%s urb %p type %d", husb->hdev->name, urb, _urb->type); | |
435 | ||
436 | _urb_queue_tail(__pending_q(husb, _urb->type), _urb); | |
437 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
438 | if (err) { | |
439 | BT_ERR("%s tx submit failed urb %p type %d err %d", | |
440 | husb->hdev->name, urb, _urb->type, err); | |
441 | _urb_unlink(_urb); | |
442 | _urb_queue_tail(__completed_q(husb, _urb->type), _urb); | |
443 | } else | |
444 | atomic_inc(__pending_tx(husb, _urb->type)); | |
445 | ||
446 | return err; | |
447 | } | |
448 | ||
449 | static inline int hci_usb_send_ctrl(struct hci_usb *husb, struct sk_buff *skb) | |
450 | { | |
0d48d939 | 451 | struct _urb *_urb = __get_completed(husb, bt_cb(skb)->pkt_type); |
1da177e4 LT |
452 | struct usb_ctrlrequest *dr; |
453 | struct urb *urb; | |
454 | ||
455 | if (!_urb) { | |
456 | _urb = _urb_alloc(0, GFP_ATOMIC); | |
457 | if (!_urb) | |
458 | return -ENOMEM; | |
0d48d939 | 459 | _urb->type = bt_cb(skb)->pkt_type; |
1da177e4 LT |
460 | |
461 | dr = kmalloc(sizeof(*dr), GFP_ATOMIC); | |
462 | if (!dr) { | |
463 | _urb_free(_urb); | |
464 | return -ENOMEM; | |
465 | } | |
466 | } else | |
467 | dr = (void *) _urb->urb.setup_packet; | |
468 | ||
469 | dr->bRequestType = husb->ctrl_req; | |
470 | dr->bRequest = 0; | |
471 | dr->wIndex = 0; | |
472 | dr->wValue = 0; | |
473 | dr->wLength = __cpu_to_le16(skb->len); | |
474 | ||
475 | urb = &_urb->urb; | |
476 | usb_fill_control_urb(urb, husb->udev, usb_sndctrlpipe(husb->udev, 0), | |
477 | (void *) dr, skb->data, skb->len, hci_usb_tx_complete, husb); | |
478 | ||
479 | BT_DBG("%s skb %p len %d", husb->hdev->name, skb, skb->len); | |
480 | ||
481 | _urb->priv = skb; | |
482 | return __tx_submit(husb, _urb); | |
483 | } | |
484 | ||
485 | static inline int hci_usb_send_bulk(struct hci_usb *husb, struct sk_buff *skb) | |
486 | { | |
0d48d939 | 487 | struct _urb *_urb = __get_completed(husb, bt_cb(skb)->pkt_type); |
1da177e4 LT |
488 | struct urb *urb; |
489 | int pipe; | |
490 | ||
491 | if (!_urb) { | |
492 | _urb = _urb_alloc(0, GFP_ATOMIC); | |
493 | if (!_urb) | |
494 | return -ENOMEM; | |
0d48d939 | 495 | _urb->type = bt_cb(skb)->pkt_type; |
1da177e4 LT |
496 | } |
497 | ||
498 | urb = &_urb->urb; | |
499 | pipe = usb_sndbulkpipe(husb->udev, husb->bulk_out_ep->desc.bEndpointAddress); | |
500 | usb_fill_bulk_urb(urb, husb->udev, pipe, skb->data, skb->len, | |
501 | hci_usb_tx_complete, husb); | |
502 | urb->transfer_flags = URB_ZERO_PACKET; | |
503 | ||
504 | BT_DBG("%s skb %p len %d", husb->hdev->name, skb, skb->len); | |
505 | ||
506 | _urb->priv = skb; | |
507 | return __tx_submit(husb, _urb); | |
508 | } | |
509 | ||
510 | #ifdef CONFIG_BT_HCIUSB_SCO | |
511 | static inline int hci_usb_send_isoc(struct hci_usb *husb, struct sk_buff *skb) | |
512 | { | |
0d48d939 | 513 | struct _urb *_urb = __get_completed(husb, bt_cb(skb)->pkt_type); |
1da177e4 LT |
514 | struct urb *urb; |
515 | ||
516 | if (!_urb) { | |
517 | _urb = _urb_alloc(HCI_MAX_ISOC_FRAMES, GFP_ATOMIC); | |
518 | if (!_urb) | |
519 | return -ENOMEM; | |
0d48d939 | 520 | _urb->type = bt_cb(skb)->pkt_type; |
1da177e4 LT |
521 | } |
522 | ||
523 | BT_DBG("%s skb %p len %d", husb->hdev->name, skb, skb->len); | |
524 | ||
525 | urb = &_urb->urb; | |
526 | ||
527 | urb->context = husb; | |
528 | urb->dev = husb->udev; | |
529 | urb->pipe = usb_sndisocpipe(husb->udev, husb->isoc_out_ep->desc.bEndpointAddress); | |
530 | urb->complete = hci_usb_tx_complete; | |
531 | urb->transfer_flags = URB_ISO_ASAP; | |
532 | ||
533 | urb->interval = husb->isoc_out_ep->desc.bInterval; | |
534 | ||
535 | urb->transfer_buffer = skb->data; | |
536 | urb->transfer_buffer_length = skb->len; | |
537 | ||
538 | __fill_isoc_desc(urb, skb->len, le16_to_cpu(husb->isoc_out_ep->desc.wMaxPacketSize)); | |
539 | ||
540 | _urb->priv = skb; | |
541 | return __tx_submit(husb, _urb); | |
542 | } | |
543 | #endif | |
544 | ||
545 | static void hci_usb_tx_process(struct hci_usb *husb) | |
546 | { | |
547 | struct sk_buff_head *q; | |
548 | struct sk_buff *skb; | |
549 | ||
550 | BT_DBG("%s", husb->hdev->name); | |
551 | ||
552 | do { | |
553 | clear_bit(HCI_USB_TX_WAKEUP, &husb->state); | |
554 | ||
555 | /* Process command queue */ | |
556 | q = __transmit_q(husb, HCI_COMMAND_PKT); | |
557 | if (!atomic_read(__pending_tx(husb, HCI_COMMAND_PKT)) && | |
558 | (skb = skb_dequeue(q))) { | |
559 | if (hci_usb_send_ctrl(husb, skb) < 0) | |
560 | skb_queue_head(q, skb); | |
561 | } | |
562 | ||
563 | #ifdef CONFIG_BT_HCIUSB_SCO | |
564 | /* Process SCO queue */ | |
565 | q = __transmit_q(husb, HCI_SCODATA_PKT); | |
566 | if (atomic_read(__pending_tx(husb, HCI_SCODATA_PKT)) < HCI_MAX_ISOC_TX && | |
567 | (skb = skb_dequeue(q))) { | |
568 | if (hci_usb_send_isoc(husb, skb) < 0) | |
569 | skb_queue_head(q, skb); | |
570 | } | |
571 | #endif | |
572 | ||
573 | /* Process ACL queue */ | |
574 | q = __transmit_q(husb, HCI_ACLDATA_PKT); | |
575 | while (atomic_read(__pending_tx(husb, HCI_ACLDATA_PKT)) < HCI_MAX_BULK_TX && | |
576 | (skb = skb_dequeue(q))) { | |
577 | if (hci_usb_send_bulk(husb, skb) < 0) { | |
578 | skb_queue_head(q, skb); | |
579 | break; | |
580 | } | |
581 | } | |
582 | } while(test_bit(HCI_USB_TX_WAKEUP, &husb->state)); | |
583 | } | |
584 | ||
585 | static inline void hci_usb_tx_wakeup(struct hci_usb *husb) | |
586 | { | |
587 | /* Serialize TX queue processing to avoid data reordering */ | |
588 | if (!test_and_set_bit(HCI_USB_TX_PROCESS, &husb->state)) { | |
589 | hci_usb_tx_process(husb); | |
590 | clear_bit(HCI_USB_TX_PROCESS, &husb->state); | |
591 | } else | |
592 | set_bit(HCI_USB_TX_WAKEUP, &husb->state); | |
593 | } | |
594 | ||
595 | /* Send frames from HCI layer */ | |
596 | static int hci_usb_send_frame(struct sk_buff *skb) | |
597 | { | |
598 | struct hci_dev *hdev = (struct hci_dev *) skb->dev; | |
599 | struct hci_usb *husb; | |
600 | ||
601 | if (!hdev) { | |
602 | BT_ERR("frame for uknown device (hdev=NULL)"); | |
603 | return -ENODEV; | |
604 | } | |
605 | ||
606 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
607 | return -EBUSY; | |
608 | ||
0d48d939 | 609 | BT_DBG("%s type %d len %d", hdev->name, bt_cb(skb)->pkt_type, skb->len); |
1da177e4 LT |
610 | |
611 | husb = (struct hci_usb *) hdev->driver_data; | |
612 | ||
0d48d939 | 613 | switch (bt_cb(skb)->pkt_type) { |
1da177e4 LT |
614 | case HCI_COMMAND_PKT: |
615 | hdev->stat.cmd_tx++; | |
616 | break; | |
617 | ||
618 | case HCI_ACLDATA_PKT: | |
619 | hdev->stat.acl_tx++; | |
620 | break; | |
621 | ||
622 | #ifdef CONFIG_BT_HCIUSB_SCO | |
623 | case HCI_SCODATA_PKT: | |
624 | hdev->stat.sco_tx++; | |
625 | break; | |
626 | #endif | |
627 | ||
628 | default: | |
629 | kfree_skb(skb); | |
630 | return 0; | |
631 | } | |
632 | ||
633 | read_lock(&husb->completion_lock); | |
634 | ||
0d48d939 | 635 | skb_queue_tail(__transmit_q(husb, bt_cb(skb)->pkt_type), skb); |
1da177e4 LT |
636 | hci_usb_tx_wakeup(husb); |
637 | ||
638 | read_unlock(&husb->completion_lock); | |
639 | return 0; | |
640 | } | |
641 | ||
642 | static inline int __recv_frame(struct hci_usb *husb, int type, void *data, int count) | |
643 | { | |
644 | BT_DBG("%s type %d data %p count %d", husb->hdev->name, type, data, count); | |
645 | ||
646 | husb->hdev->stat.byte_rx += count; | |
647 | ||
648 | while (count) { | |
649 | struct sk_buff *skb = __reassembly(husb, type); | |
650 | struct { int expect; } *scb; | |
651 | int len = 0; | |
652 | ||
653 | if (!skb) { | |
654 | /* Start of the frame */ | |
655 | ||
656 | switch (type) { | |
657 | case HCI_EVENT_PKT: | |
658 | if (count >= HCI_EVENT_HDR_SIZE) { | |
659 | struct hci_event_hdr *h = data; | |
660 | len = HCI_EVENT_HDR_SIZE + h->plen; | |
661 | } else | |
662 | return -EILSEQ; | |
663 | break; | |
664 | ||
665 | case HCI_ACLDATA_PKT: | |
666 | if (count >= HCI_ACL_HDR_SIZE) { | |
667 | struct hci_acl_hdr *h = data; | |
668 | len = HCI_ACL_HDR_SIZE + __le16_to_cpu(h->dlen); | |
669 | } else | |
670 | return -EILSEQ; | |
671 | break; | |
672 | #ifdef CONFIG_BT_HCIUSB_SCO | |
673 | case HCI_SCODATA_PKT: | |
674 | if (count >= HCI_SCO_HDR_SIZE) { | |
675 | struct hci_sco_hdr *h = data; | |
676 | len = HCI_SCO_HDR_SIZE + h->dlen; | |
677 | } else | |
678 | return -EILSEQ; | |
679 | break; | |
680 | #endif | |
681 | } | |
682 | BT_DBG("new packet len %d", len); | |
683 | ||
684 | skb = bt_skb_alloc(len, GFP_ATOMIC); | |
685 | if (!skb) { | |
686 | BT_ERR("%s no memory for the packet", husb->hdev->name); | |
687 | return -ENOMEM; | |
688 | } | |
689 | skb->dev = (void *) husb->hdev; | |
0d48d939 | 690 | bt_cb(skb)->pkt_type = type; |
1da177e4 LT |
691 | |
692 | __reassembly(husb, type) = skb; | |
693 | ||
694 | scb = (void *) skb->cb; | |
695 | scb->expect = len; | |
696 | } else { | |
697 | /* Continuation */ | |
698 | scb = (void *) skb->cb; | |
699 | len = scb->expect; | |
700 | } | |
701 | ||
702 | len = min(len, count); | |
703 | ||
704 | memcpy(skb_put(skb, len), data, len); | |
705 | ||
706 | scb->expect -= len; | |
707 | if (!scb->expect) { | |
708 | /* Complete frame */ | |
709 | __reassembly(husb, type) = NULL; | |
0d48d939 | 710 | bt_cb(skb)->pkt_type = type; |
1da177e4 LT |
711 | hci_recv_frame(skb); |
712 | } | |
713 | ||
714 | count -= len; data += len; | |
715 | } | |
716 | return 0; | |
717 | } | |
718 | ||
719 | static void hci_usb_rx_complete(struct urb *urb, struct pt_regs *regs) | |
720 | { | |
721 | struct _urb *_urb = container_of(urb, struct _urb, urb); | |
722 | struct hci_usb *husb = (void *) urb->context; | |
723 | struct hci_dev *hdev = husb->hdev; | |
724 | int err, count = urb->actual_length; | |
725 | ||
726 | BT_DBG("%s urb %p type %d status %d count %d flags %x", hdev->name, urb, | |
727 | _urb->type, urb->status, count, urb->transfer_flags); | |
728 | ||
729 | read_lock(&husb->completion_lock); | |
730 | ||
731 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
732 | goto unlock; | |
733 | ||
734 | if (urb->status || !count) | |
735 | goto resubmit; | |
736 | ||
737 | if (_urb->type == HCI_SCODATA_PKT) { | |
738 | #ifdef CONFIG_BT_HCIUSB_SCO | |
739 | int i; | |
740 | for (i=0; i < urb->number_of_packets; i++) { | |
741 | BT_DBG("desc %d status %d offset %d len %d", i, | |
742 | urb->iso_frame_desc[i].status, | |
743 | urb->iso_frame_desc[i].offset, | |
744 | urb->iso_frame_desc[i].actual_length); | |
745 | ||
746 | if (!urb->iso_frame_desc[i].status) | |
747 | __recv_frame(husb, _urb->type, | |
748 | urb->transfer_buffer + urb->iso_frame_desc[i].offset, | |
749 | urb->iso_frame_desc[i].actual_length); | |
750 | } | |
751 | #else | |
752 | ; | |
753 | #endif | |
754 | } else { | |
755 | err = __recv_frame(husb, _urb->type, urb->transfer_buffer, count); | |
756 | if (err < 0) { | |
757 | BT_ERR("%s corrupted packet: type %d count %d", | |
758 | husb->hdev->name, _urb->type, count); | |
759 | hdev->stat.err_rx++; | |
760 | } | |
761 | } | |
762 | ||
763 | resubmit: | |
764 | urb->dev = husb->udev; | |
765 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
766 | BT_DBG("%s urb %p type %d resubmit status %d", hdev->name, urb, | |
767 | _urb->type, err); | |
768 | ||
769 | unlock: | |
770 | read_unlock(&husb->completion_lock); | |
771 | } | |
772 | ||
773 | static void hci_usb_tx_complete(struct urb *urb, struct pt_regs *regs) | |
774 | { | |
775 | struct _urb *_urb = container_of(urb, struct _urb, urb); | |
776 | struct hci_usb *husb = (void *) urb->context; | |
777 | struct hci_dev *hdev = husb->hdev; | |
778 | ||
779 | BT_DBG("%s urb %p status %d flags %x", hdev->name, urb, | |
780 | urb->status, urb->transfer_flags); | |
781 | ||
782 | atomic_dec(__pending_tx(husb, _urb->type)); | |
783 | ||
784 | urb->transfer_buffer = NULL; | |
785 | kfree_skb((struct sk_buff *) _urb->priv); | |
786 | ||
787 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
788 | return; | |
789 | ||
790 | if (!urb->status) | |
791 | hdev->stat.byte_tx += urb->transfer_buffer_length; | |
792 | else | |
793 | hdev->stat.err_tx++; | |
794 | ||
795 | read_lock(&husb->completion_lock); | |
796 | ||
797 | _urb_unlink(_urb); | |
798 | _urb_queue_tail(__completed_q(husb, _urb->type), _urb); | |
799 | ||
800 | hci_usb_tx_wakeup(husb); | |
801 | ||
802 | read_unlock(&husb->completion_lock); | |
803 | } | |
804 | ||
805 | static void hci_usb_destruct(struct hci_dev *hdev) | |
806 | { | |
807 | struct hci_usb *husb = (struct hci_usb *) hdev->driver_data; | |
808 | ||
809 | BT_DBG("%s", hdev->name); | |
810 | ||
811 | kfree(husb); | |
812 | } | |
813 | ||
814 | static void hci_usb_notify(struct hci_dev *hdev, unsigned int evt) | |
815 | { | |
816 | BT_DBG("%s evt %d", hdev->name, evt); | |
817 | } | |
818 | ||
819 | static int hci_usb_probe(struct usb_interface *intf, const struct usb_device_id *id) | |
820 | { | |
821 | struct usb_device *udev = interface_to_usbdev(intf); | |
822 | struct usb_host_endpoint *bulk_out_ep = NULL; | |
823 | struct usb_host_endpoint *bulk_in_ep = NULL; | |
824 | struct usb_host_endpoint *intr_in_ep = NULL; | |
825 | struct usb_host_endpoint *ep; | |
826 | struct usb_host_interface *uif; | |
827 | struct usb_interface *isoc_iface; | |
828 | struct hci_usb *husb; | |
829 | struct hci_dev *hdev; | |
830 | int i, e, size, isoc_ifnum, isoc_alts; | |
831 | ||
832 | BT_DBG("udev %p intf %p", udev, intf); | |
833 | ||
834 | if (!id->driver_info) { | |
835 | const struct usb_device_id *match; | |
836 | match = usb_match_id(intf, blacklist_ids); | |
837 | if (match) | |
838 | id = match; | |
839 | } | |
840 | ||
841 | if (ignore || id->driver_info & HCI_IGNORE) | |
842 | return -ENODEV; | |
843 | ||
0915e886 MH |
844 | if (ignore_csr && id->driver_info & HCI_CSR) |
845 | return -ENODEV; | |
846 | ||
847 | if (ignore_sniffer && id->driver_info & HCI_SNIFFER) | |
848 | return -ENODEV; | |
849 | ||
1da177e4 LT |
850 | if (intf->cur_altsetting->desc.bInterfaceNumber > 0) |
851 | return -ENODEV; | |
852 | ||
853 | /* Find endpoints that we need */ | |
854 | uif = intf->cur_altsetting; | |
855 | for (e = 0; e < uif->desc.bNumEndpoints; e++) { | |
856 | ep = &uif->endpoint[e]; | |
857 | ||
858 | switch (ep->desc.bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) { | |
859 | case USB_ENDPOINT_XFER_INT: | |
860 | if (ep->desc.bEndpointAddress & USB_DIR_IN) | |
861 | intr_in_ep = ep; | |
862 | break; | |
863 | ||
864 | case USB_ENDPOINT_XFER_BULK: | |
865 | if (ep->desc.bEndpointAddress & USB_DIR_IN) | |
866 | bulk_in_ep = ep; | |
867 | else | |
868 | bulk_out_ep = ep; | |
869 | break; | |
870 | } | |
871 | } | |
872 | ||
873 | if (!bulk_in_ep || !bulk_out_ep || !intr_in_ep) { | |
874 | BT_DBG("Bulk endpoints not found"); | |
875 | goto done; | |
876 | } | |
877 | ||
878 | if (!(husb = kmalloc(sizeof(struct hci_usb), GFP_KERNEL))) { | |
879 | BT_ERR("Can't allocate: control structure"); | |
880 | goto done; | |
881 | } | |
882 | ||
883 | memset(husb, 0, sizeof(struct hci_usb)); | |
884 | ||
885 | husb->udev = udev; | |
886 | husb->bulk_out_ep = bulk_out_ep; | |
887 | husb->bulk_in_ep = bulk_in_ep; | |
888 | husb->intr_in_ep = intr_in_ep; | |
889 | ||
890 | if (id->driver_info & HCI_DIGIANSWER) | |
891 | husb->ctrl_req = USB_TYPE_VENDOR; | |
892 | else | |
893 | husb->ctrl_req = USB_TYPE_CLASS; | |
894 | ||
895 | /* Find isochronous endpoints that we can use */ | |
896 | size = 0; | |
897 | isoc_iface = NULL; | |
898 | isoc_alts = 0; | |
899 | isoc_ifnum = 1; | |
900 | ||
901 | #ifdef CONFIG_BT_HCIUSB_SCO | |
902 | if (isoc && !(id->driver_info & (HCI_BROKEN_ISOC | HCI_SNIFFER))) | |
903 | isoc_iface = usb_ifnum_to_if(udev, isoc_ifnum); | |
904 | ||
905 | if (isoc_iface) { | |
906 | int a; | |
907 | struct usb_host_endpoint *isoc_out_ep = NULL; | |
908 | struct usb_host_endpoint *isoc_in_ep = NULL; | |
909 | ||
910 | for (a = 0; a < isoc_iface->num_altsetting; a++) { | |
911 | uif = &isoc_iface->altsetting[a]; | |
912 | for (e = 0; e < uif->desc.bNumEndpoints; e++) { | |
913 | ep = &uif->endpoint[e]; | |
914 | ||
915 | switch (ep->desc.bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) { | |
916 | case USB_ENDPOINT_XFER_ISOC: | |
917 | if (le16_to_cpu(ep->desc.wMaxPacketSize) < size || | |
918 | uif->desc.bAlternateSetting != isoc) | |
919 | break; | |
920 | size = le16_to_cpu(ep->desc.wMaxPacketSize); | |
921 | ||
922 | isoc_alts = uif->desc.bAlternateSetting; | |
923 | ||
924 | if (ep->desc.bEndpointAddress & USB_DIR_IN) | |
925 | isoc_in_ep = ep; | |
926 | else | |
927 | isoc_out_ep = ep; | |
928 | break; | |
929 | } | |
930 | } | |
931 | } | |
932 | ||
933 | if (!isoc_in_ep || !isoc_out_ep) | |
934 | BT_DBG("Isoc endpoints not found"); | |
935 | else { | |
936 | BT_DBG("isoc ifnum %d alts %d", isoc_ifnum, isoc_alts); | |
937 | if (usb_driver_claim_interface(&hci_usb_driver, isoc_iface, husb) != 0) | |
938 | BT_ERR("Can't claim isoc interface"); | |
939 | else if (usb_set_interface(udev, isoc_ifnum, isoc_alts)) { | |
940 | BT_ERR("Can't set isoc interface settings"); | |
941 | husb->isoc_iface = isoc_iface; | |
942 | usb_driver_release_interface(&hci_usb_driver, isoc_iface); | |
943 | husb->isoc_iface = NULL; | |
944 | } else { | |
945 | husb->isoc_iface = isoc_iface; | |
946 | husb->isoc_in_ep = isoc_in_ep; | |
947 | husb->isoc_out_ep = isoc_out_ep; | |
948 | } | |
949 | } | |
950 | } | |
951 | #endif | |
952 | ||
953 | rwlock_init(&husb->completion_lock); | |
954 | ||
955 | for (i = 0; i < 4; i++) { | |
956 | skb_queue_head_init(&husb->transmit_q[i]); | |
957 | _urb_queue_init(&husb->pending_q[i]); | |
958 | _urb_queue_init(&husb->completed_q[i]); | |
959 | } | |
960 | ||
961 | /* Initialize and register HCI device */ | |
962 | hdev = hci_alloc_dev(); | |
963 | if (!hdev) { | |
964 | BT_ERR("Can't allocate HCI device"); | |
965 | goto probe_error; | |
966 | } | |
967 | ||
968 | husb->hdev = hdev; | |
969 | ||
970 | hdev->type = HCI_USB; | |
971 | hdev->driver_data = husb; | |
972 | SET_HCIDEV_DEV(hdev, &intf->dev); | |
973 | ||
974 | hdev->open = hci_usb_open; | |
975 | hdev->close = hci_usb_close; | |
976 | hdev->flush = hci_usb_flush; | |
977 | hdev->send = hci_usb_send_frame; | |
978 | hdev->destruct = hci_usb_destruct; | |
979 | hdev->notify = hci_usb_notify; | |
980 | ||
981 | hdev->owner = THIS_MODULE; | |
982 | ||
983 | if (reset || id->driver_info & HCI_RESET) | |
984 | set_bit(HCI_QUIRK_RESET_ON_INIT, &hdev->quirks); | |
985 | ||
986 | if (id->driver_info & HCI_SNIFFER) { | |
987 | if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997) | |
988 | set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); | |
989 | } | |
990 | ||
991 | if (id->driver_info & HCI_BCM92035) { | |
992 | unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 }; | |
993 | struct sk_buff *skb; | |
994 | ||
995 | skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL); | |
996 | if (skb) { | |
997 | memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd)); | |
998 | skb_queue_tail(&hdev->driver_init, skb); | |
999 | } | |
1000 | } | |
1001 | ||
1002 | if (hci_register_dev(hdev) < 0) { | |
1003 | BT_ERR("Can't register HCI device"); | |
1004 | hci_free_dev(hdev); | |
1005 | goto probe_error; | |
1006 | } | |
1007 | ||
1008 | usb_set_intfdata(intf, husb); | |
1009 | return 0; | |
1010 | ||
1011 | probe_error: | |
1012 | if (husb->isoc_iface) | |
1013 | usb_driver_release_interface(&hci_usb_driver, husb->isoc_iface); | |
1014 | kfree(husb); | |
1015 | ||
1016 | done: | |
1017 | return -EIO; | |
1018 | } | |
1019 | ||
1020 | static void hci_usb_disconnect(struct usb_interface *intf) | |
1021 | { | |
1022 | struct hci_usb *husb = usb_get_intfdata(intf); | |
1023 | struct hci_dev *hdev; | |
1024 | ||
1025 | if (!husb || intf == husb->isoc_iface) | |
1026 | return; | |
1027 | ||
1028 | usb_set_intfdata(intf, NULL); | |
1029 | hdev = husb->hdev; | |
1030 | ||
1031 | BT_DBG("%s", hdev->name); | |
1032 | ||
1033 | hci_usb_close(hdev); | |
1034 | ||
1035 | if (husb->isoc_iface) | |
1036 | usb_driver_release_interface(&hci_usb_driver, husb->isoc_iface); | |
1037 | ||
1038 | if (hci_unregister_dev(hdev) < 0) | |
1039 | BT_ERR("Can't unregister HCI device %s", hdev->name); | |
1040 | ||
1041 | hci_free_dev(hdev); | |
1042 | } | |
1043 | ||
1044 | static struct usb_driver hci_usb_driver = { | |
1045 | .owner = THIS_MODULE, | |
1046 | .name = "hci_usb", | |
1047 | .probe = hci_usb_probe, | |
1048 | .disconnect = hci_usb_disconnect, | |
1049 | .id_table = bluetooth_ids, | |
1050 | }; | |
1051 | ||
1052 | static int __init hci_usb_init(void) | |
1053 | { | |
1054 | int err; | |
1055 | ||
1056 | BT_INFO("HCI USB driver ver %s", VERSION); | |
1057 | ||
1058 | if ((err = usb_register(&hci_usb_driver)) < 0) | |
1059 | BT_ERR("Failed to register HCI USB driver"); | |
1060 | ||
1061 | return err; | |
1062 | } | |
1063 | ||
1064 | static void __exit hci_usb_exit(void) | |
1065 | { | |
1066 | usb_deregister(&hci_usb_driver); | |
1067 | } | |
1068 | ||
1069 | module_init(hci_usb_init); | |
1070 | module_exit(hci_usb_exit); | |
1071 | ||
1072 | module_param(ignore, bool, 0644); | |
1073 | MODULE_PARM_DESC(ignore, "Ignore devices from the matching table"); | |
1074 | ||
0915e886 MH |
1075 | module_param(ignore_csr, bool, 0644); |
1076 | MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001"); | |
1077 | ||
1078 | module_param(ignore_sniffer, bool, 0644); | |
1079 | MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002"); | |
1080 | ||
1da177e4 LT |
1081 | module_param(reset, bool, 0644); |
1082 | MODULE_PARM_DESC(reset, "Send HCI reset command on initialization"); | |
1083 | ||
1084 | #ifdef CONFIG_BT_HCIUSB_SCO | |
1085 | module_param(isoc, int, 0644); | |
1086 | MODULE_PARM_DESC(isoc, "Set isochronous transfers for SCO over HCI support"); | |
1087 | #endif | |
1088 | ||
1089 | MODULE_AUTHOR("Maxim Krasnyansky <maxk@qualcomm.com>, Marcel Holtmann <marcel@holtmann.org>"); | |
1090 | MODULE_DESCRIPTION("Bluetooth HCI USB driver ver " VERSION); | |
1091 | MODULE_VERSION(VERSION); | |
1092 | MODULE_LICENSE("GPL"); |