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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; | |
68 | static int reset = 0; | |
69 | ||
70 | #ifdef CONFIG_BT_HCIUSB_SCO | |
71 | static int isoc = 2; | |
72 | #endif | |
73 | ||
74 | #define VERSION "2.8" | |
75 | ||
76 | static struct usb_driver hci_usb_driver; | |
77 | ||
78 | static struct usb_device_id bluetooth_ids[] = { | |
79 | /* Generic Bluetooth USB device */ | |
80 | { USB_DEVICE_INFO(HCI_DEV_CLASS, HCI_DEV_SUBCLASS, HCI_DEV_PROTOCOL) }, | |
81 | ||
82 | /* AVM BlueFRITZ! USB v2.0 */ | |
83 | { USB_DEVICE(0x057c, 0x3800) }, | |
84 | ||
85 | /* Bluetooth Ultraport Module from IBM */ | |
86 | { USB_DEVICE(0x04bf, 0x030a) }, | |
87 | ||
88 | /* ALPS Modules with non-standard id */ | |
89 | { USB_DEVICE(0x044e, 0x3001) }, | |
90 | { USB_DEVICE(0x044e, 0x3002) }, | |
91 | ||
92 | /* Ericsson with non-standard id */ | |
93 | { USB_DEVICE(0x0bdb, 0x1002) }, | |
94 | ||
95 | { } /* Terminating entry */ | |
96 | }; | |
97 | ||
98 | MODULE_DEVICE_TABLE (usb, bluetooth_ids); | |
99 | ||
100 | static struct usb_device_id blacklist_ids[] = { | |
101 | /* Broadcom BCM2033 without firmware */ | |
102 | { USB_DEVICE(0x0a5c, 0x2033), .driver_info = HCI_IGNORE }, | |
103 | ||
104 | /* Broadcom BCM2035 */ | |
105 | { USB_DEVICE(0x0a5c, 0x200a), .driver_info = HCI_RESET | HCI_BROKEN_ISOC }, | |
106 | { USB_DEVICE(0x0a5c, 0x2009), .driver_info = HCI_BCM92035 }, | |
107 | ||
108 | /* Microsoft Wireless Transceiver for Bluetooth 2.0 */ | |
109 | { USB_DEVICE(0x045e, 0x009c), .driver_info = HCI_RESET }, | |
110 | ||
cad0f627 MH |
111 | /* Kensington Bluetooth USB adapter */ |
112 | { USB_DEVICE(0x047d, 0x105d), .driver_info = HCI_RESET }, | |
113 | ||
1da177e4 LT |
114 | /* ISSC Bluetooth Adapter v3.1 */ |
115 | { USB_DEVICE(0x1131, 0x1001), .driver_info = HCI_RESET }, | |
116 | ||
117 | /* RTX Telecom based adapter with buggy SCO support */ | |
118 | { USB_DEVICE(0x0400, 0x0807), .driver_info = HCI_BROKEN_ISOC }, | |
119 | ||
120 | /* Digianswer devices */ | |
121 | { USB_DEVICE(0x08fd, 0x0001), .driver_info = HCI_DIGIANSWER }, | |
122 | { USB_DEVICE(0x08fd, 0x0002), .driver_info = HCI_IGNORE }, | |
123 | ||
124 | /* CSR BlueCore Bluetooth Sniffer */ | |
125 | { USB_DEVICE(0x0a12, 0x0002), .driver_info = HCI_SNIFFER }, | |
126 | ||
127 | { } /* Terminating entry */ | |
128 | }; | |
129 | ||
2eb25a6c | 130 | static struct _urb *_urb_alloc(int isoc, unsigned int __nocast gfp) |
1da177e4 LT |
131 | { |
132 | struct _urb *_urb = kmalloc(sizeof(struct _urb) + | |
133 | sizeof(struct usb_iso_packet_descriptor) * isoc, gfp); | |
134 | if (_urb) { | |
135 | memset(_urb, 0, sizeof(*_urb)); | |
136 | usb_init_urb(&_urb->urb); | |
137 | } | |
138 | return _urb; | |
139 | } | |
140 | ||
141 | static struct _urb *_urb_dequeue(struct _urb_queue *q) | |
142 | { | |
143 | struct _urb *_urb = NULL; | |
144 | unsigned long flags; | |
145 | spin_lock_irqsave(&q->lock, flags); | |
146 | { | |
147 | struct list_head *head = &q->head; | |
148 | struct list_head *next = head->next; | |
149 | if (next != head) { | |
150 | _urb = list_entry(next, struct _urb, list); | |
151 | list_del(next); _urb->queue = NULL; | |
152 | } | |
153 | } | |
154 | spin_unlock_irqrestore(&q->lock, flags); | |
155 | return _urb; | |
156 | } | |
157 | ||
158 | static void hci_usb_rx_complete(struct urb *urb, struct pt_regs *regs); | |
159 | static void hci_usb_tx_complete(struct urb *urb, struct pt_regs *regs); | |
160 | ||
161 | #define __pending_tx(husb, type) (&husb->pending_tx[type-1]) | |
162 | #define __pending_q(husb, type) (&husb->pending_q[type-1]) | |
163 | #define __completed_q(husb, type) (&husb->completed_q[type-1]) | |
164 | #define __transmit_q(husb, type) (&husb->transmit_q[type-1]) | |
165 | #define __reassembly(husb, type) (husb->reassembly[type-1]) | |
166 | ||
167 | static inline struct _urb *__get_completed(struct hci_usb *husb, int type) | |
168 | { | |
169 | return _urb_dequeue(__completed_q(husb, type)); | |
170 | } | |
171 | ||
172 | #ifdef CONFIG_BT_HCIUSB_SCO | |
173 | static void __fill_isoc_desc(struct urb *urb, int len, int mtu) | |
174 | { | |
175 | int offset = 0, i; | |
176 | ||
177 | BT_DBG("len %d mtu %d", len, mtu); | |
178 | ||
179 | for (i=0; i < HCI_MAX_ISOC_FRAMES && len >= mtu; i++, offset += mtu, len -= mtu) { | |
180 | urb->iso_frame_desc[i].offset = offset; | |
181 | urb->iso_frame_desc[i].length = mtu; | |
182 | BT_DBG("desc %d offset %d len %d", i, offset, mtu); | |
183 | } | |
184 | if (len && i < HCI_MAX_ISOC_FRAMES) { | |
185 | urb->iso_frame_desc[i].offset = offset; | |
186 | urb->iso_frame_desc[i].length = len; | |
187 | BT_DBG("desc %d offset %d len %d", i, offset, len); | |
188 | i++; | |
189 | } | |
190 | urb->number_of_packets = i; | |
191 | } | |
192 | #endif | |
193 | ||
194 | static int hci_usb_intr_rx_submit(struct hci_usb *husb) | |
195 | { | |
196 | struct _urb *_urb; | |
197 | struct urb *urb; | |
198 | int err, pipe, interval, size; | |
199 | void *buf; | |
200 | ||
201 | BT_DBG("%s", husb->hdev->name); | |
202 | ||
203 | size = le16_to_cpu(husb->intr_in_ep->desc.wMaxPacketSize); | |
204 | ||
205 | buf = kmalloc(size, GFP_ATOMIC); | |
206 | if (!buf) | |
207 | return -ENOMEM; | |
208 | ||
209 | _urb = _urb_alloc(0, GFP_ATOMIC); | |
210 | if (!_urb) { | |
211 | kfree(buf); | |
212 | return -ENOMEM; | |
213 | } | |
214 | _urb->type = HCI_EVENT_PKT; | |
215 | _urb_queue_tail(__pending_q(husb, _urb->type), _urb); | |
216 | ||
217 | urb = &_urb->urb; | |
218 | pipe = usb_rcvintpipe(husb->udev, husb->intr_in_ep->desc.bEndpointAddress); | |
219 | interval = husb->intr_in_ep->desc.bInterval; | |
220 | usb_fill_int_urb(urb, husb->udev, pipe, buf, size, hci_usb_rx_complete, husb, interval); | |
221 | ||
222 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
223 | if (err) { | |
224 | BT_ERR("%s intr rx submit failed urb %p err %d", | |
225 | husb->hdev->name, urb, err); | |
226 | _urb_unlink(_urb); | |
227 | _urb_free(_urb); | |
228 | kfree(buf); | |
229 | } | |
230 | return err; | |
231 | } | |
232 | ||
233 | static int hci_usb_bulk_rx_submit(struct hci_usb *husb) | |
234 | { | |
235 | struct _urb *_urb; | |
236 | struct urb *urb; | |
237 | int err, pipe, size = HCI_MAX_FRAME_SIZE; | |
238 | void *buf; | |
239 | ||
240 | buf = kmalloc(size, GFP_ATOMIC); | |
241 | if (!buf) | |
242 | return -ENOMEM; | |
243 | ||
244 | _urb = _urb_alloc(0, GFP_ATOMIC); | |
245 | if (!_urb) { | |
246 | kfree(buf); | |
247 | return -ENOMEM; | |
248 | } | |
249 | _urb->type = HCI_ACLDATA_PKT; | |
250 | _urb_queue_tail(__pending_q(husb, _urb->type), _urb); | |
251 | ||
252 | urb = &_urb->urb; | |
253 | pipe = usb_rcvbulkpipe(husb->udev, husb->bulk_in_ep->desc.bEndpointAddress); | |
254 | usb_fill_bulk_urb(urb, husb->udev, pipe, buf, size, hci_usb_rx_complete, husb); | |
255 | urb->transfer_flags = 0; | |
256 | ||
257 | BT_DBG("%s urb %p", husb->hdev->name, urb); | |
258 | ||
259 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
260 | if (err) { | |
261 | BT_ERR("%s bulk rx submit failed urb %p err %d", | |
262 | husb->hdev->name, urb, err); | |
263 | _urb_unlink(_urb); | |
264 | _urb_free(_urb); | |
265 | kfree(buf); | |
266 | } | |
267 | return err; | |
268 | } | |
269 | ||
270 | #ifdef CONFIG_BT_HCIUSB_SCO | |
271 | static int hci_usb_isoc_rx_submit(struct hci_usb *husb) | |
272 | { | |
273 | struct _urb *_urb; | |
274 | struct urb *urb; | |
275 | int err, mtu, size; | |
276 | void *buf; | |
277 | ||
278 | mtu = le16_to_cpu(husb->isoc_in_ep->desc.wMaxPacketSize); | |
279 | size = mtu * HCI_MAX_ISOC_FRAMES; | |
280 | ||
281 | buf = kmalloc(size, GFP_ATOMIC); | |
282 | if (!buf) | |
283 | return -ENOMEM; | |
284 | ||
285 | _urb = _urb_alloc(HCI_MAX_ISOC_FRAMES, GFP_ATOMIC); | |
286 | if (!_urb) { | |
287 | kfree(buf); | |
288 | return -ENOMEM; | |
289 | } | |
290 | _urb->type = HCI_SCODATA_PKT; | |
291 | _urb_queue_tail(__pending_q(husb, _urb->type), _urb); | |
292 | ||
293 | urb = &_urb->urb; | |
294 | ||
295 | urb->context = husb; | |
296 | urb->dev = husb->udev; | |
297 | urb->pipe = usb_rcvisocpipe(husb->udev, husb->isoc_in_ep->desc.bEndpointAddress); | |
298 | urb->complete = hci_usb_rx_complete; | |
299 | ||
300 | urb->interval = husb->isoc_in_ep->desc.bInterval; | |
301 | ||
302 | urb->transfer_buffer_length = size; | |
303 | urb->transfer_buffer = buf; | |
304 | urb->transfer_flags = URB_ISO_ASAP; | |
305 | ||
306 | __fill_isoc_desc(urb, size, mtu); | |
307 | ||
308 | BT_DBG("%s urb %p", husb->hdev->name, urb); | |
309 | ||
310 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
311 | if (err) { | |
312 | BT_ERR("%s isoc rx submit failed urb %p err %d", | |
313 | husb->hdev->name, urb, err); | |
314 | _urb_unlink(_urb); | |
315 | _urb_free(_urb); | |
316 | kfree(buf); | |
317 | } | |
318 | return err; | |
319 | } | |
320 | #endif | |
321 | ||
322 | /* Initialize device */ | |
323 | static int hci_usb_open(struct hci_dev *hdev) | |
324 | { | |
325 | struct hci_usb *husb = (struct hci_usb *) hdev->driver_data; | |
326 | int i, err; | |
327 | unsigned long flags; | |
328 | ||
329 | BT_DBG("%s", hdev->name); | |
330 | ||
331 | if (test_and_set_bit(HCI_RUNNING, &hdev->flags)) | |
332 | return 0; | |
333 | ||
334 | write_lock_irqsave(&husb->completion_lock, flags); | |
335 | ||
336 | err = hci_usb_intr_rx_submit(husb); | |
337 | if (!err) { | |
338 | for (i = 0; i < HCI_MAX_BULK_RX; i++) | |
339 | hci_usb_bulk_rx_submit(husb); | |
340 | ||
341 | #ifdef CONFIG_BT_HCIUSB_SCO | |
342 | if (husb->isoc_iface) | |
343 | for (i = 0; i < HCI_MAX_ISOC_RX; i++) | |
344 | hci_usb_isoc_rx_submit(husb); | |
345 | #endif | |
346 | } else { | |
347 | clear_bit(HCI_RUNNING, &hdev->flags); | |
348 | } | |
349 | ||
350 | write_unlock_irqrestore(&husb->completion_lock, flags); | |
351 | return err; | |
352 | } | |
353 | ||
354 | /* Reset device */ | |
355 | static int hci_usb_flush(struct hci_dev *hdev) | |
356 | { | |
357 | struct hci_usb *husb = (struct hci_usb *) hdev->driver_data; | |
358 | int i; | |
359 | ||
360 | BT_DBG("%s", hdev->name); | |
361 | ||
362 | for (i = 0; i < 4; i++) | |
363 | skb_queue_purge(&husb->transmit_q[i]); | |
364 | return 0; | |
365 | } | |
366 | ||
367 | static void hci_usb_unlink_urbs(struct hci_usb *husb) | |
368 | { | |
369 | int i; | |
370 | ||
371 | BT_DBG("%s", husb->hdev->name); | |
372 | ||
373 | for (i = 0; i < 4; i++) { | |
374 | struct _urb *_urb; | |
375 | struct urb *urb; | |
376 | ||
377 | /* Kill pending requests */ | |
378 | while ((_urb = _urb_dequeue(&husb->pending_q[i]))) { | |
379 | urb = &_urb->urb; | |
380 | BT_DBG("%s unlinking _urb %p type %d urb %p", | |
381 | husb->hdev->name, _urb, _urb->type, urb); | |
382 | usb_kill_urb(urb); | |
383 | _urb_queue_tail(__completed_q(husb, _urb->type), _urb); | |
384 | } | |
385 | ||
386 | /* Release completed requests */ | |
387 | while ((_urb = _urb_dequeue(&husb->completed_q[i]))) { | |
388 | urb = &_urb->urb; | |
389 | BT_DBG("%s freeing _urb %p type %d urb %p", | |
390 | husb->hdev->name, _urb, _urb->type, urb); | |
e9a3e671 MH |
391 | kfree(urb->setup_packet); |
392 | kfree(urb->transfer_buffer); | |
1da177e4 LT |
393 | _urb_free(_urb); |
394 | } | |
395 | ||
396 | /* Release reassembly buffers */ | |
397 | if (husb->reassembly[i]) { | |
398 | kfree_skb(husb->reassembly[i]); | |
399 | husb->reassembly[i] = NULL; | |
400 | } | |
401 | } | |
402 | } | |
403 | ||
404 | /* Close device */ | |
405 | static int hci_usb_close(struct hci_dev *hdev) | |
406 | { | |
407 | struct hci_usb *husb = (struct hci_usb *) hdev->driver_data; | |
408 | unsigned long flags; | |
409 | ||
410 | if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags)) | |
411 | return 0; | |
412 | ||
413 | BT_DBG("%s", hdev->name); | |
414 | ||
415 | /* Synchronize with completion handlers */ | |
416 | write_lock_irqsave(&husb->completion_lock, flags); | |
417 | write_unlock_irqrestore(&husb->completion_lock, flags); | |
418 | ||
419 | hci_usb_unlink_urbs(husb); | |
420 | hci_usb_flush(hdev); | |
421 | return 0; | |
422 | } | |
423 | ||
424 | static int __tx_submit(struct hci_usb *husb, struct _urb *_urb) | |
425 | { | |
426 | struct urb *urb = &_urb->urb; | |
427 | int err; | |
428 | ||
429 | BT_DBG("%s urb %p type %d", husb->hdev->name, urb, _urb->type); | |
430 | ||
431 | _urb_queue_tail(__pending_q(husb, _urb->type), _urb); | |
432 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
433 | if (err) { | |
434 | BT_ERR("%s tx submit failed urb %p type %d err %d", | |
435 | husb->hdev->name, urb, _urb->type, err); | |
436 | _urb_unlink(_urb); | |
437 | _urb_queue_tail(__completed_q(husb, _urb->type), _urb); | |
438 | } else | |
439 | atomic_inc(__pending_tx(husb, _urb->type)); | |
440 | ||
441 | return err; | |
442 | } | |
443 | ||
444 | static inline int hci_usb_send_ctrl(struct hci_usb *husb, struct sk_buff *skb) | |
445 | { | |
0d48d939 | 446 | struct _urb *_urb = __get_completed(husb, bt_cb(skb)->pkt_type); |
1da177e4 LT |
447 | struct usb_ctrlrequest *dr; |
448 | struct urb *urb; | |
449 | ||
450 | if (!_urb) { | |
451 | _urb = _urb_alloc(0, GFP_ATOMIC); | |
452 | if (!_urb) | |
453 | return -ENOMEM; | |
0d48d939 | 454 | _urb->type = bt_cb(skb)->pkt_type; |
1da177e4 LT |
455 | |
456 | dr = kmalloc(sizeof(*dr), GFP_ATOMIC); | |
457 | if (!dr) { | |
458 | _urb_free(_urb); | |
459 | return -ENOMEM; | |
460 | } | |
461 | } else | |
462 | dr = (void *) _urb->urb.setup_packet; | |
463 | ||
464 | dr->bRequestType = husb->ctrl_req; | |
465 | dr->bRequest = 0; | |
466 | dr->wIndex = 0; | |
467 | dr->wValue = 0; | |
468 | dr->wLength = __cpu_to_le16(skb->len); | |
469 | ||
470 | urb = &_urb->urb; | |
471 | usb_fill_control_urb(urb, husb->udev, usb_sndctrlpipe(husb->udev, 0), | |
472 | (void *) dr, skb->data, skb->len, hci_usb_tx_complete, husb); | |
473 | ||
474 | BT_DBG("%s skb %p len %d", husb->hdev->name, skb, skb->len); | |
475 | ||
476 | _urb->priv = skb; | |
477 | return __tx_submit(husb, _urb); | |
478 | } | |
479 | ||
480 | static inline int hci_usb_send_bulk(struct hci_usb *husb, struct sk_buff *skb) | |
481 | { | |
0d48d939 | 482 | struct _urb *_urb = __get_completed(husb, bt_cb(skb)->pkt_type); |
1da177e4 LT |
483 | struct urb *urb; |
484 | int pipe; | |
485 | ||
486 | if (!_urb) { | |
487 | _urb = _urb_alloc(0, GFP_ATOMIC); | |
488 | if (!_urb) | |
489 | return -ENOMEM; | |
0d48d939 | 490 | _urb->type = bt_cb(skb)->pkt_type; |
1da177e4 LT |
491 | } |
492 | ||
493 | urb = &_urb->urb; | |
494 | pipe = usb_sndbulkpipe(husb->udev, husb->bulk_out_ep->desc.bEndpointAddress); | |
495 | usb_fill_bulk_urb(urb, husb->udev, pipe, skb->data, skb->len, | |
496 | hci_usb_tx_complete, husb); | |
497 | urb->transfer_flags = URB_ZERO_PACKET; | |
498 | ||
499 | BT_DBG("%s skb %p len %d", husb->hdev->name, skb, skb->len); | |
500 | ||
501 | _urb->priv = skb; | |
502 | return __tx_submit(husb, _urb); | |
503 | } | |
504 | ||
505 | #ifdef CONFIG_BT_HCIUSB_SCO | |
506 | static inline int hci_usb_send_isoc(struct hci_usb *husb, struct sk_buff *skb) | |
507 | { | |
0d48d939 | 508 | struct _urb *_urb = __get_completed(husb, bt_cb(skb)->pkt_type); |
1da177e4 LT |
509 | struct urb *urb; |
510 | ||
511 | if (!_urb) { | |
512 | _urb = _urb_alloc(HCI_MAX_ISOC_FRAMES, GFP_ATOMIC); | |
513 | if (!_urb) | |
514 | return -ENOMEM; | |
0d48d939 | 515 | _urb->type = bt_cb(skb)->pkt_type; |
1da177e4 LT |
516 | } |
517 | ||
518 | BT_DBG("%s skb %p len %d", husb->hdev->name, skb, skb->len); | |
519 | ||
520 | urb = &_urb->urb; | |
521 | ||
522 | urb->context = husb; | |
523 | urb->dev = husb->udev; | |
524 | urb->pipe = usb_sndisocpipe(husb->udev, husb->isoc_out_ep->desc.bEndpointAddress); | |
525 | urb->complete = hci_usb_tx_complete; | |
526 | urb->transfer_flags = URB_ISO_ASAP; | |
527 | ||
528 | urb->interval = husb->isoc_out_ep->desc.bInterval; | |
529 | ||
530 | urb->transfer_buffer = skb->data; | |
531 | urb->transfer_buffer_length = skb->len; | |
532 | ||
533 | __fill_isoc_desc(urb, skb->len, le16_to_cpu(husb->isoc_out_ep->desc.wMaxPacketSize)); | |
534 | ||
535 | _urb->priv = skb; | |
536 | return __tx_submit(husb, _urb); | |
537 | } | |
538 | #endif | |
539 | ||
540 | static void hci_usb_tx_process(struct hci_usb *husb) | |
541 | { | |
542 | struct sk_buff_head *q; | |
543 | struct sk_buff *skb; | |
544 | ||
545 | BT_DBG("%s", husb->hdev->name); | |
546 | ||
547 | do { | |
548 | clear_bit(HCI_USB_TX_WAKEUP, &husb->state); | |
549 | ||
550 | /* Process command queue */ | |
551 | q = __transmit_q(husb, HCI_COMMAND_PKT); | |
552 | if (!atomic_read(__pending_tx(husb, HCI_COMMAND_PKT)) && | |
553 | (skb = skb_dequeue(q))) { | |
554 | if (hci_usb_send_ctrl(husb, skb) < 0) | |
555 | skb_queue_head(q, skb); | |
556 | } | |
557 | ||
558 | #ifdef CONFIG_BT_HCIUSB_SCO | |
559 | /* Process SCO queue */ | |
560 | q = __transmit_q(husb, HCI_SCODATA_PKT); | |
561 | if (atomic_read(__pending_tx(husb, HCI_SCODATA_PKT)) < HCI_MAX_ISOC_TX && | |
562 | (skb = skb_dequeue(q))) { | |
563 | if (hci_usb_send_isoc(husb, skb) < 0) | |
564 | skb_queue_head(q, skb); | |
565 | } | |
566 | #endif | |
567 | ||
568 | /* Process ACL queue */ | |
569 | q = __transmit_q(husb, HCI_ACLDATA_PKT); | |
570 | while (atomic_read(__pending_tx(husb, HCI_ACLDATA_PKT)) < HCI_MAX_BULK_TX && | |
571 | (skb = skb_dequeue(q))) { | |
572 | if (hci_usb_send_bulk(husb, skb) < 0) { | |
573 | skb_queue_head(q, skb); | |
574 | break; | |
575 | } | |
576 | } | |
577 | } while(test_bit(HCI_USB_TX_WAKEUP, &husb->state)); | |
578 | } | |
579 | ||
580 | static inline void hci_usb_tx_wakeup(struct hci_usb *husb) | |
581 | { | |
582 | /* Serialize TX queue processing to avoid data reordering */ | |
583 | if (!test_and_set_bit(HCI_USB_TX_PROCESS, &husb->state)) { | |
584 | hci_usb_tx_process(husb); | |
585 | clear_bit(HCI_USB_TX_PROCESS, &husb->state); | |
586 | } else | |
587 | set_bit(HCI_USB_TX_WAKEUP, &husb->state); | |
588 | } | |
589 | ||
590 | /* Send frames from HCI layer */ | |
591 | static int hci_usb_send_frame(struct sk_buff *skb) | |
592 | { | |
593 | struct hci_dev *hdev = (struct hci_dev *) skb->dev; | |
594 | struct hci_usb *husb; | |
595 | ||
596 | if (!hdev) { | |
597 | BT_ERR("frame for uknown device (hdev=NULL)"); | |
598 | return -ENODEV; | |
599 | } | |
600 | ||
601 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
602 | return -EBUSY; | |
603 | ||
0d48d939 | 604 | BT_DBG("%s type %d len %d", hdev->name, bt_cb(skb)->pkt_type, skb->len); |
1da177e4 LT |
605 | |
606 | husb = (struct hci_usb *) hdev->driver_data; | |
607 | ||
0d48d939 | 608 | switch (bt_cb(skb)->pkt_type) { |
1da177e4 LT |
609 | case HCI_COMMAND_PKT: |
610 | hdev->stat.cmd_tx++; | |
611 | break; | |
612 | ||
613 | case HCI_ACLDATA_PKT: | |
614 | hdev->stat.acl_tx++; | |
615 | break; | |
616 | ||
617 | #ifdef CONFIG_BT_HCIUSB_SCO | |
618 | case HCI_SCODATA_PKT: | |
619 | hdev->stat.sco_tx++; | |
620 | break; | |
621 | #endif | |
622 | ||
623 | default: | |
624 | kfree_skb(skb); | |
625 | return 0; | |
626 | } | |
627 | ||
628 | read_lock(&husb->completion_lock); | |
629 | ||
0d48d939 | 630 | skb_queue_tail(__transmit_q(husb, bt_cb(skb)->pkt_type), skb); |
1da177e4 LT |
631 | hci_usb_tx_wakeup(husb); |
632 | ||
633 | read_unlock(&husb->completion_lock); | |
634 | return 0; | |
635 | } | |
636 | ||
637 | static inline int __recv_frame(struct hci_usb *husb, int type, void *data, int count) | |
638 | { | |
639 | BT_DBG("%s type %d data %p count %d", husb->hdev->name, type, data, count); | |
640 | ||
641 | husb->hdev->stat.byte_rx += count; | |
642 | ||
643 | while (count) { | |
644 | struct sk_buff *skb = __reassembly(husb, type); | |
645 | struct { int expect; } *scb; | |
646 | int len = 0; | |
647 | ||
648 | if (!skb) { | |
649 | /* Start of the frame */ | |
650 | ||
651 | switch (type) { | |
652 | case HCI_EVENT_PKT: | |
653 | if (count >= HCI_EVENT_HDR_SIZE) { | |
654 | struct hci_event_hdr *h = data; | |
655 | len = HCI_EVENT_HDR_SIZE + h->plen; | |
656 | } else | |
657 | return -EILSEQ; | |
658 | break; | |
659 | ||
660 | case HCI_ACLDATA_PKT: | |
661 | if (count >= HCI_ACL_HDR_SIZE) { | |
662 | struct hci_acl_hdr *h = data; | |
663 | len = HCI_ACL_HDR_SIZE + __le16_to_cpu(h->dlen); | |
664 | } else | |
665 | return -EILSEQ; | |
666 | break; | |
667 | #ifdef CONFIG_BT_HCIUSB_SCO | |
668 | case HCI_SCODATA_PKT: | |
669 | if (count >= HCI_SCO_HDR_SIZE) { | |
670 | struct hci_sco_hdr *h = data; | |
671 | len = HCI_SCO_HDR_SIZE + h->dlen; | |
672 | } else | |
673 | return -EILSEQ; | |
674 | break; | |
675 | #endif | |
676 | } | |
677 | BT_DBG("new packet len %d", len); | |
678 | ||
679 | skb = bt_skb_alloc(len, GFP_ATOMIC); | |
680 | if (!skb) { | |
681 | BT_ERR("%s no memory for the packet", husb->hdev->name); | |
682 | return -ENOMEM; | |
683 | } | |
684 | skb->dev = (void *) husb->hdev; | |
0d48d939 | 685 | bt_cb(skb)->pkt_type = type; |
1da177e4 LT |
686 | |
687 | __reassembly(husb, type) = skb; | |
688 | ||
689 | scb = (void *) skb->cb; | |
690 | scb->expect = len; | |
691 | } else { | |
692 | /* Continuation */ | |
693 | scb = (void *) skb->cb; | |
694 | len = scb->expect; | |
695 | } | |
696 | ||
697 | len = min(len, count); | |
698 | ||
699 | memcpy(skb_put(skb, len), data, len); | |
700 | ||
701 | scb->expect -= len; | |
702 | if (!scb->expect) { | |
703 | /* Complete frame */ | |
704 | __reassembly(husb, type) = NULL; | |
0d48d939 | 705 | bt_cb(skb)->pkt_type = type; |
1da177e4 LT |
706 | hci_recv_frame(skb); |
707 | } | |
708 | ||
709 | count -= len; data += len; | |
710 | } | |
711 | return 0; | |
712 | } | |
713 | ||
714 | static void hci_usb_rx_complete(struct urb *urb, struct pt_regs *regs) | |
715 | { | |
716 | struct _urb *_urb = container_of(urb, struct _urb, urb); | |
717 | struct hci_usb *husb = (void *) urb->context; | |
718 | struct hci_dev *hdev = husb->hdev; | |
719 | int err, count = urb->actual_length; | |
720 | ||
721 | BT_DBG("%s urb %p type %d status %d count %d flags %x", hdev->name, urb, | |
722 | _urb->type, urb->status, count, urb->transfer_flags); | |
723 | ||
724 | read_lock(&husb->completion_lock); | |
725 | ||
726 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
727 | goto unlock; | |
728 | ||
729 | if (urb->status || !count) | |
730 | goto resubmit; | |
731 | ||
732 | if (_urb->type == HCI_SCODATA_PKT) { | |
733 | #ifdef CONFIG_BT_HCIUSB_SCO | |
734 | int i; | |
735 | for (i=0; i < urb->number_of_packets; i++) { | |
736 | BT_DBG("desc %d status %d offset %d len %d", i, | |
737 | urb->iso_frame_desc[i].status, | |
738 | urb->iso_frame_desc[i].offset, | |
739 | urb->iso_frame_desc[i].actual_length); | |
740 | ||
741 | if (!urb->iso_frame_desc[i].status) | |
742 | __recv_frame(husb, _urb->type, | |
743 | urb->transfer_buffer + urb->iso_frame_desc[i].offset, | |
744 | urb->iso_frame_desc[i].actual_length); | |
745 | } | |
746 | #else | |
747 | ; | |
748 | #endif | |
749 | } else { | |
750 | err = __recv_frame(husb, _urb->type, urb->transfer_buffer, count); | |
751 | if (err < 0) { | |
752 | BT_ERR("%s corrupted packet: type %d count %d", | |
753 | husb->hdev->name, _urb->type, count); | |
754 | hdev->stat.err_rx++; | |
755 | } | |
756 | } | |
757 | ||
758 | resubmit: | |
759 | urb->dev = husb->udev; | |
760 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
761 | BT_DBG("%s urb %p type %d resubmit status %d", hdev->name, urb, | |
762 | _urb->type, err); | |
763 | ||
764 | unlock: | |
765 | read_unlock(&husb->completion_lock); | |
766 | } | |
767 | ||
768 | static void hci_usb_tx_complete(struct urb *urb, struct pt_regs *regs) | |
769 | { | |
770 | struct _urb *_urb = container_of(urb, struct _urb, urb); | |
771 | struct hci_usb *husb = (void *) urb->context; | |
772 | struct hci_dev *hdev = husb->hdev; | |
773 | ||
774 | BT_DBG("%s urb %p status %d flags %x", hdev->name, urb, | |
775 | urb->status, urb->transfer_flags); | |
776 | ||
777 | atomic_dec(__pending_tx(husb, _urb->type)); | |
778 | ||
779 | urb->transfer_buffer = NULL; | |
780 | kfree_skb((struct sk_buff *) _urb->priv); | |
781 | ||
782 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
783 | return; | |
784 | ||
785 | if (!urb->status) | |
786 | hdev->stat.byte_tx += urb->transfer_buffer_length; | |
787 | else | |
788 | hdev->stat.err_tx++; | |
789 | ||
790 | read_lock(&husb->completion_lock); | |
791 | ||
792 | _urb_unlink(_urb); | |
793 | _urb_queue_tail(__completed_q(husb, _urb->type), _urb); | |
794 | ||
795 | hci_usb_tx_wakeup(husb); | |
796 | ||
797 | read_unlock(&husb->completion_lock); | |
798 | } | |
799 | ||
800 | static void hci_usb_destruct(struct hci_dev *hdev) | |
801 | { | |
802 | struct hci_usb *husb = (struct hci_usb *) hdev->driver_data; | |
803 | ||
804 | BT_DBG("%s", hdev->name); | |
805 | ||
806 | kfree(husb); | |
807 | } | |
808 | ||
809 | static void hci_usb_notify(struct hci_dev *hdev, unsigned int evt) | |
810 | { | |
811 | BT_DBG("%s evt %d", hdev->name, evt); | |
812 | } | |
813 | ||
814 | static int hci_usb_probe(struct usb_interface *intf, const struct usb_device_id *id) | |
815 | { | |
816 | struct usb_device *udev = interface_to_usbdev(intf); | |
817 | struct usb_host_endpoint *bulk_out_ep = NULL; | |
818 | struct usb_host_endpoint *bulk_in_ep = NULL; | |
819 | struct usb_host_endpoint *intr_in_ep = NULL; | |
820 | struct usb_host_endpoint *ep; | |
821 | struct usb_host_interface *uif; | |
822 | struct usb_interface *isoc_iface; | |
823 | struct hci_usb *husb; | |
824 | struct hci_dev *hdev; | |
825 | int i, e, size, isoc_ifnum, isoc_alts; | |
826 | ||
827 | BT_DBG("udev %p intf %p", udev, intf); | |
828 | ||
829 | if (!id->driver_info) { | |
830 | const struct usb_device_id *match; | |
831 | match = usb_match_id(intf, blacklist_ids); | |
832 | if (match) | |
833 | id = match; | |
834 | } | |
835 | ||
836 | if (ignore || id->driver_info & HCI_IGNORE) | |
837 | return -ENODEV; | |
838 | ||
839 | if (intf->cur_altsetting->desc.bInterfaceNumber > 0) | |
840 | return -ENODEV; | |
841 | ||
842 | /* Find endpoints that we need */ | |
843 | uif = intf->cur_altsetting; | |
844 | for (e = 0; e < uif->desc.bNumEndpoints; e++) { | |
845 | ep = &uif->endpoint[e]; | |
846 | ||
847 | switch (ep->desc.bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) { | |
848 | case USB_ENDPOINT_XFER_INT: | |
849 | if (ep->desc.bEndpointAddress & USB_DIR_IN) | |
850 | intr_in_ep = ep; | |
851 | break; | |
852 | ||
853 | case USB_ENDPOINT_XFER_BULK: | |
854 | if (ep->desc.bEndpointAddress & USB_DIR_IN) | |
855 | bulk_in_ep = ep; | |
856 | else | |
857 | bulk_out_ep = ep; | |
858 | break; | |
859 | } | |
860 | } | |
861 | ||
862 | if (!bulk_in_ep || !bulk_out_ep || !intr_in_ep) { | |
863 | BT_DBG("Bulk endpoints not found"); | |
864 | goto done; | |
865 | } | |
866 | ||
867 | if (!(husb = kmalloc(sizeof(struct hci_usb), GFP_KERNEL))) { | |
868 | BT_ERR("Can't allocate: control structure"); | |
869 | goto done; | |
870 | } | |
871 | ||
872 | memset(husb, 0, sizeof(struct hci_usb)); | |
873 | ||
874 | husb->udev = udev; | |
875 | husb->bulk_out_ep = bulk_out_ep; | |
876 | husb->bulk_in_ep = bulk_in_ep; | |
877 | husb->intr_in_ep = intr_in_ep; | |
878 | ||
879 | if (id->driver_info & HCI_DIGIANSWER) | |
880 | husb->ctrl_req = USB_TYPE_VENDOR; | |
881 | else | |
882 | husb->ctrl_req = USB_TYPE_CLASS; | |
883 | ||
884 | /* Find isochronous endpoints that we can use */ | |
885 | size = 0; | |
886 | isoc_iface = NULL; | |
887 | isoc_alts = 0; | |
888 | isoc_ifnum = 1; | |
889 | ||
890 | #ifdef CONFIG_BT_HCIUSB_SCO | |
891 | if (isoc && !(id->driver_info & (HCI_BROKEN_ISOC | HCI_SNIFFER))) | |
892 | isoc_iface = usb_ifnum_to_if(udev, isoc_ifnum); | |
893 | ||
894 | if (isoc_iface) { | |
895 | int a; | |
896 | struct usb_host_endpoint *isoc_out_ep = NULL; | |
897 | struct usb_host_endpoint *isoc_in_ep = NULL; | |
898 | ||
899 | for (a = 0; a < isoc_iface->num_altsetting; a++) { | |
900 | uif = &isoc_iface->altsetting[a]; | |
901 | for (e = 0; e < uif->desc.bNumEndpoints; e++) { | |
902 | ep = &uif->endpoint[e]; | |
903 | ||
904 | switch (ep->desc.bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) { | |
905 | case USB_ENDPOINT_XFER_ISOC: | |
906 | if (le16_to_cpu(ep->desc.wMaxPacketSize) < size || | |
907 | uif->desc.bAlternateSetting != isoc) | |
908 | break; | |
909 | size = le16_to_cpu(ep->desc.wMaxPacketSize); | |
910 | ||
911 | isoc_alts = uif->desc.bAlternateSetting; | |
912 | ||
913 | if (ep->desc.bEndpointAddress & USB_DIR_IN) | |
914 | isoc_in_ep = ep; | |
915 | else | |
916 | isoc_out_ep = ep; | |
917 | break; | |
918 | } | |
919 | } | |
920 | } | |
921 | ||
922 | if (!isoc_in_ep || !isoc_out_ep) | |
923 | BT_DBG("Isoc endpoints not found"); | |
924 | else { | |
925 | BT_DBG("isoc ifnum %d alts %d", isoc_ifnum, isoc_alts); | |
926 | if (usb_driver_claim_interface(&hci_usb_driver, isoc_iface, husb) != 0) | |
927 | BT_ERR("Can't claim isoc interface"); | |
928 | else if (usb_set_interface(udev, isoc_ifnum, isoc_alts)) { | |
929 | BT_ERR("Can't set isoc interface settings"); | |
930 | husb->isoc_iface = isoc_iface; | |
931 | usb_driver_release_interface(&hci_usb_driver, isoc_iface); | |
932 | husb->isoc_iface = NULL; | |
933 | } else { | |
934 | husb->isoc_iface = isoc_iface; | |
935 | husb->isoc_in_ep = isoc_in_ep; | |
936 | husb->isoc_out_ep = isoc_out_ep; | |
937 | } | |
938 | } | |
939 | } | |
940 | #endif | |
941 | ||
942 | rwlock_init(&husb->completion_lock); | |
943 | ||
944 | for (i = 0; i < 4; i++) { | |
945 | skb_queue_head_init(&husb->transmit_q[i]); | |
946 | _urb_queue_init(&husb->pending_q[i]); | |
947 | _urb_queue_init(&husb->completed_q[i]); | |
948 | } | |
949 | ||
950 | /* Initialize and register HCI device */ | |
951 | hdev = hci_alloc_dev(); | |
952 | if (!hdev) { | |
953 | BT_ERR("Can't allocate HCI device"); | |
954 | goto probe_error; | |
955 | } | |
956 | ||
957 | husb->hdev = hdev; | |
958 | ||
959 | hdev->type = HCI_USB; | |
960 | hdev->driver_data = husb; | |
961 | SET_HCIDEV_DEV(hdev, &intf->dev); | |
962 | ||
963 | hdev->open = hci_usb_open; | |
964 | hdev->close = hci_usb_close; | |
965 | hdev->flush = hci_usb_flush; | |
966 | hdev->send = hci_usb_send_frame; | |
967 | hdev->destruct = hci_usb_destruct; | |
968 | hdev->notify = hci_usb_notify; | |
969 | ||
970 | hdev->owner = THIS_MODULE; | |
971 | ||
972 | if (reset || id->driver_info & HCI_RESET) | |
973 | set_bit(HCI_QUIRK_RESET_ON_INIT, &hdev->quirks); | |
974 | ||
975 | if (id->driver_info & HCI_SNIFFER) { | |
976 | if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997) | |
977 | set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); | |
978 | } | |
979 | ||
980 | if (id->driver_info & HCI_BCM92035) { | |
981 | unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 }; | |
982 | struct sk_buff *skb; | |
983 | ||
984 | skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL); | |
985 | if (skb) { | |
986 | memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd)); | |
987 | skb_queue_tail(&hdev->driver_init, skb); | |
988 | } | |
989 | } | |
990 | ||
991 | if (hci_register_dev(hdev) < 0) { | |
992 | BT_ERR("Can't register HCI device"); | |
993 | hci_free_dev(hdev); | |
994 | goto probe_error; | |
995 | } | |
996 | ||
997 | usb_set_intfdata(intf, husb); | |
998 | return 0; | |
999 | ||
1000 | probe_error: | |
1001 | if (husb->isoc_iface) | |
1002 | usb_driver_release_interface(&hci_usb_driver, husb->isoc_iface); | |
1003 | kfree(husb); | |
1004 | ||
1005 | done: | |
1006 | return -EIO; | |
1007 | } | |
1008 | ||
1009 | static void hci_usb_disconnect(struct usb_interface *intf) | |
1010 | { | |
1011 | struct hci_usb *husb = usb_get_intfdata(intf); | |
1012 | struct hci_dev *hdev; | |
1013 | ||
1014 | if (!husb || intf == husb->isoc_iface) | |
1015 | return; | |
1016 | ||
1017 | usb_set_intfdata(intf, NULL); | |
1018 | hdev = husb->hdev; | |
1019 | ||
1020 | BT_DBG("%s", hdev->name); | |
1021 | ||
1022 | hci_usb_close(hdev); | |
1023 | ||
1024 | if (husb->isoc_iface) | |
1025 | usb_driver_release_interface(&hci_usb_driver, husb->isoc_iface); | |
1026 | ||
1027 | if (hci_unregister_dev(hdev) < 0) | |
1028 | BT_ERR("Can't unregister HCI device %s", hdev->name); | |
1029 | ||
1030 | hci_free_dev(hdev); | |
1031 | } | |
1032 | ||
1033 | static struct usb_driver hci_usb_driver = { | |
1034 | .owner = THIS_MODULE, | |
1035 | .name = "hci_usb", | |
1036 | .probe = hci_usb_probe, | |
1037 | .disconnect = hci_usb_disconnect, | |
1038 | .id_table = bluetooth_ids, | |
1039 | }; | |
1040 | ||
1041 | static int __init hci_usb_init(void) | |
1042 | { | |
1043 | int err; | |
1044 | ||
1045 | BT_INFO("HCI USB driver ver %s", VERSION); | |
1046 | ||
1047 | if ((err = usb_register(&hci_usb_driver)) < 0) | |
1048 | BT_ERR("Failed to register HCI USB driver"); | |
1049 | ||
1050 | return err; | |
1051 | } | |
1052 | ||
1053 | static void __exit hci_usb_exit(void) | |
1054 | { | |
1055 | usb_deregister(&hci_usb_driver); | |
1056 | } | |
1057 | ||
1058 | module_init(hci_usb_init); | |
1059 | module_exit(hci_usb_exit); | |
1060 | ||
1061 | module_param(ignore, bool, 0644); | |
1062 | MODULE_PARM_DESC(ignore, "Ignore devices from the matching table"); | |
1063 | ||
1064 | module_param(reset, bool, 0644); | |
1065 | MODULE_PARM_DESC(reset, "Send HCI reset command on initialization"); | |
1066 | ||
1067 | #ifdef CONFIG_BT_HCIUSB_SCO | |
1068 | module_param(isoc, int, 0644); | |
1069 | MODULE_PARM_DESC(isoc, "Set isochronous transfers for SCO over HCI support"); | |
1070 | #endif | |
1071 | ||
1072 | MODULE_AUTHOR("Maxim Krasnyansky <maxk@qualcomm.com>, Marcel Holtmann <marcel@holtmann.org>"); | |
1073 | MODULE_DESCRIPTION("Bluetooth HCI USB driver ver " VERSION); | |
1074 | MODULE_VERSION(VERSION); | |
1075 | MODULE_LICENSE("GPL"); |