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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 | ||
1da177e4 LT |
34 | #include <linux/module.h> |
35 | ||
36 | #include <linux/kernel.h> | |
37 | #include <linux/init.h> | |
1da177e4 LT |
38 | #include <linux/unistd.h> |
39 | #include <linux/types.h> | |
40 | #include <linux/interrupt.h> | |
41 | #include <linux/moduleparam.h> | |
42 | ||
43 | #include <linux/slab.h> | |
44 | #include <linux/errno.h> | |
45 | #include <linux/string.h> | |
46 | #include <linux/skbuff.h> | |
47 | ||
48 | #include <linux/usb.h> | |
49 | ||
50 | #include <net/bluetooth/bluetooth.h> | |
51 | #include <net/bluetooth/hci_core.h> | |
52 | ||
53 | #include "hci_usb.h" | |
54 | ||
55 | #ifndef CONFIG_BT_HCIUSB_DEBUG | |
56 | #undef BT_DBG | |
57 | #define BT_DBG(D...) | |
1da177e4 LT |
58 | #endif |
59 | ||
60 | #ifndef CONFIG_BT_HCIUSB_ZERO_PACKET | |
61 | #undef URB_ZERO_PACKET | |
62 | #define URB_ZERO_PACKET 0 | |
63 | #endif | |
64 | ||
65 | static int ignore = 0; | |
7ef934b3 | 66 | static int ignore_dga = 0; |
0915e886 MH |
67 | static int ignore_csr = 0; |
68 | static int ignore_sniffer = 0; | |
520ca78a MH |
69 | static int disable_scofix = 0; |
70 | static int force_scofix = 0; | |
1da177e4 LT |
71 | static int reset = 0; |
72 | ||
73 | #ifdef CONFIG_BT_HCIUSB_SCO | |
74 | static int isoc = 2; | |
75 | #endif | |
76 | ||
0915e886 | 77 | #define VERSION "2.9" |
1da177e4 LT |
78 | |
79 | static struct usb_driver hci_usb_driver; | |
80 | ||
81 | static struct usb_device_id bluetooth_ids[] = { | |
82 | /* Generic Bluetooth USB device */ | |
83 | { USB_DEVICE_INFO(HCI_DEV_CLASS, HCI_DEV_SUBCLASS, HCI_DEV_PROTOCOL) }, | |
84 | ||
85 | /* AVM BlueFRITZ! USB v2.0 */ | |
86 | { USB_DEVICE(0x057c, 0x3800) }, | |
87 | ||
88 | /* Bluetooth Ultraport Module from IBM */ | |
89 | { USB_DEVICE(0x04bf, 0x030a) }, | |
90 | ||
91 | /* ALPS Modules with non-standard id */ | |
92 | { USB_DEVICE(0x044e, 0x3001) }, | |
93 | { USB_DEVICE(0x044e, 0x3002) }, | |
94 | ||
95 | /* Ericsson with non-standard id */ | |
96 | { USB_DEVICE(0x0bdb, 0x1002) }, | |
97 | ||
62ae1591 MH |
98 | /* Canyon CN-BTU1 with HID interfaces */ |
99 | { USB_DEVICE(0x0c10, 0x0000), .driver_info = HCI_RESET }, | |
100 | ||
1da177e4 LT |
101 | { } /* Terminating entry */ |
102 | }; | |
103 | ||
104 | MODULE_DEVICE_TABLE (usb, bluetooth_ids); | |
105 | ||
106 | static struct usb_device_id blacklist_ids[] = { | |
0915e886 MH |
107 | /* CSR BlueCore devices */ |
108 | { USB_DEVICE(0x0a12, 0x0001), .driver_info = HCI_CSR }, | |
109 | ||
1da177e4 LT |
110 | /* Broadcom BCM2033 without firmware */ |
111 | { USB_DEVICE(0x0a5c, 0x2033), .driver_info = HCI_IGNORE }, | |
112 | ||
113 | /* Broadcom BCM2035 */ | |
e9e9290f | 114 | { USB_DEVICE(0x0a5c, 0x200a), .driver_info = HCI_RESET | HCI_WRONG_SCO_MTU }, |
1da177e4 LT |
115 | { USB_DEVICE(0x0a5c, 0x2009), .driver_info = HCI_BCM92035 }, |
116 | ||
520ca78a MH |
117 | /* IBM/Lenovo ThinkPad with Broadcom chip */ |
118 | { USB_DEVICE(0x0a5c, 0x201e), .driver_info = HCI_WRONG_SCO_MTU }, | |
5939be43 | 119 | { USB_DEVICE(0x0a5c, 0x2110), .driver_info = HCI_WRONG_SCO_MTU }, |
520ca78a | 120 | |
0eab934f MH |
121 | /* ANYCOM Bluetooth USB-200 and USB-250 */ |
122 | { USB_DEVICE(0x0a5c, 0x2111), .driver_info = HCI_RESET }, | |
123 | ||
da942704 MH |
124 | /* HP laptop with Broadcom chip */ |
125 | { USB_DEVICE(0x03f0, 0x171d), .driver_info = HCI_WRONG_SCO_MTU }, | |
126 | ||
86112ffd MH |
127 | /* Dell laptop with Broadcom chip */ |
128 | { USB_DEVICE(0x413c, 0x8126), .driver_info = HCI_WRONG_SCO_MTU }, | |
129 | ||
1da177e4 LT |
130 | /* Microsoft Wireless Transceiver for Bluetooth 2.0 */ |
131 | { USB_DEVICE(0x045e, 0x009c), .driver_info = HCI_RESET }, | |
132 | ||
cad0f627 MH |
133 | /* Kensington Bluetooth USB adapter */ |
134 | { USB_DEVICE(0x047d, 0x105d), .driver_info = HCI_RESET }, | |
71c83515 | 135 | { USB_DEVICE(0x047d, 0x105e), .driver_info = HCI_WRONG_SCO_MTU }, |
cad0f627 | 136 | |
1da177e4 LT |
137 | /* ISSC Bluetooth Adapter v3.1 */ |
138 | { USB_DEVICE(0x1131, 0x1001), .driver_info = HCI_RESET }, | |
139 | ||
8e4f7230 | 140 | /* RTX Telecom based adapters with buggy SCO support */ |
1da177e4 | 141 | { USB_DEVICE(0x0400, 0x0807), .driver_info = HCI_BROKEN_ISOC }, |
8e4f7230 | 142 | { USB_DEVICE(0x0400, 0x080a), .driver_info = HCI_BROKEN_ISOC }, |
1da177e4 | 143 | |
ea9727f6 | 144 | /* Belkin F8T012 and F8T013 devices */ |
da1f5198 | 145 | { USB_DEVICE(0x050d, 0x0012), .driver_info = HCI_WRONG_SCO_MTU }, |
ea9727f6 | 146 | { USB_DEVICE(0x050d, 0x0013), .driver_info = HCI_WRONG_SCO_MTU }, |
da1f5198 | 147 | |
1da177e4 LT |
148 | /* Digianswer devices */ |
149 | { USB_DEVICE(0x08fd, 0x0001), .driver_info = HCI_DIGIANSWER }, | |
150 | { USB_DEVICE(0x08fd, 0x0002), .driver_info = HCI_IGNORE }, | |
151 | ||
152 | /* CSR BlueCore Bluetooth Sniffer */ | |
153 | { USB_DEVICE(0x0a12, 0x0002), .driver_info = HCI_SNIFFER }, | |
154 | ||
2b86ad21 MH |
155 | /* Frontline ComProbe Bluetooth Sniffer */ |
156 | { USB_DEVICE(0x16d3, 0x0002), .driver_info = HCI_SNIFFER }, | |
157 | ||
1da177e4 LT |
158 | { } /* Terminating entry */ |
159 | }; | |
160 | ||
dd0fc66f | 161 | static struct _urb *_urb_alloc(int isoc, gfp_t gfp) |
1da177e4 LT |
162 | { |
163 | struct _urb *_urb = kmalloc(sizeof(struct _urb) + | |
164 | sizeof(struct usb_iso_packet_descriptor) * isoc, gfp); | |
165 | if (_urb) { | |
166 | memset(_urb, 0, sizeof(*_urb)); | |
167 | usb_init_urb(&_urb->urb); | |
168 | } | |
169 | return _urb; | |
170 | } | |
171 | ||
172 | static struct _urb *_urb_dequeue(struct _urb_queue *q) | |
173 | { | |
174 | struct _urb *_urb = NULL; | |
175 | unsigned long flags; | |
176 | spin_lock_irqsave(&q->lock, flags); | |
177 | { | |
178 | struct list_head *head = &q->head; | |
179 | struct list_head *next = head->next; | |
180 | if (next != head) { | |
181 | _urb = list_entry(next, struct _urb, list); | |
182 | list_del(next); _urb->queue = NULL; | |
183 | } | |
184 | } | |
185 | spin_unlock_irqrestore(&q->lock, flags); | |
186 | return _urb; | |
187 | } | |
188 | ||
7d12e780 DH |
189 | static void hci_usb_rx_complete(struct urb *urb); |
190 | static void hci_usb_tx_complete(struct urb *urb); | |
1da177e4 LT |
191 | |
192 | #define __pending_tx(husb, type) (&husb->pending_tx[type-1]) | |
193 | #define __pending_q(husb, type) (&husb->pending_q[type-1]) | |
194 | #define __completed_q(husb, type) (&husb->completed_q[type-1]) | |
195 | #define __transmit_q(husb, type) (&husb->transmit_q[type-1]) | |
196 | #define __reassembly(husb, type) (husb->reassembly[type-1]) | |
197 | ||
198 | static inline struct _urb *__get_completed(struct hci_usb *husb, int type) | |
199 | { | |
200 | return _urb_dequeue(__completed_q(husb, type)); | |
201 | } | |
202 | ||
203 | #ifdef CONFIG_BT_HCIUSB_SCO | |
204 | static void __fill_isoc_desc(struct urb *urb, int len, int mtu) | |
205 | { | |
206 | int offset = 0, i; | |
207 | ||
208 | BT_DBG("len %d mtu %d", len, mtu); | |
209 | ||
210 | for (i=0; i < HCI_MAX_ISOC_FRAMES && len >= mtu; i++, offset += mtu, len -= mtu) { | |
211 | urb->iso_frame_desc[i].offset = offset; | |
212 | urb->iso_frame_desc[i].length = mtu; | |
213 | BT_DBG("desc %d offset %d len %d", i, offset, mtu); | |
214 | } | |
215 | if (len && i < HCI_MAX_ISOC_FRAMES) { | |
216 | urb->iso_frame_desc[i].offset = offset; | |
217 | urb->iso_frame_desc[i].length = len; | |
218 | BT_DBG("desc %d offset %d len %d", i, offset, len); | |
219 | i++; | |
220 | } | |
221 | urb->number_of_packets = i; | |
222 | } | |
223 | #endif | |
224 | ||
225 | static int hci_usb_intr_rx_submit(struct hci_usb *husb) | |
226 | { | |
227 | struct _urb *_urb; | |
228 | struct urb *urb; | |
229 | int err, pipe, interval, size; | |
230 | void *buf; | |
231 | ||
232 | BT_DBG("%s", husb->hdev->name); | |
233 | ||
234 | size = le16_to_cpu(husb->intr_in_ep->desc.wMaxPacketSize); | |
235 | ||
236 | buf = kmalloc(size, GFP_ATOMIC); | |
237 | if (!buf) | |
238 | return -ENOMEM; | |
239 | ||
240 | _urb = _urb_alloc(0, GFP_ATOMIC); | |
241 | if (!_urb) { | |
242 | kfree(buf); | |
243 | return -ENOMEM; | |
244 | } | |
245 | _urb->type = HCI_EVENT_PKT; | |
246 | _urb_queue_tail(__pending_q(husb, _urb->type), _urb); | |
247 | ||
248 | urb = &_urb->urb; | |
249 | pipe = usb_rcvintpipe(husb->udev, husb->intr_in_ep->desc.bEndpointAddress); | |
250 | interval = husb->intr_in_ep->desc.bInterval; | |
251 | usb_fill_int_urb(urb, husb->udev, pipe, buf, size, hci_usb_rx_complete, husb, interval); | |
252 | ||
253 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
254 | if (err) { | |
255 | BT_ERR("%s intr rx submit failed urb %p err %d", | |
256 | husb->hdev->name, urb, err); | |
257 | _urb_unlink(_urb); | |
258 | _urb_free(_urb); | |
259 | kfree(buf); | |
260 | } | |
261 | return err; | |
262 | } | |
263 | ||
264 | static int hci_usb_bulk_rx_submit(struct hci_usb *husb) | |
265 | { | |
266 | struct _urb *_urb; | |
267 | struct urb *urb; | |
268 | int err, pipe, size = HCI_MAX_FRAME_SIZE; | |
269 | void *buf; | |
270 | ||
271 | buf = kmalloc(size, GFP_ATOMIC); | |
272 | if (!buf) | |
273 | return -ENOMEM; | |
274 | ||
275 | _urb = _urb_alloc(0, GFP_ATOMIC); | |
276 | if (!_urb) { | |
277 | kfree(buf); | |
278 | return -ENOMEM; | |
279 | } | |
280 | _urb->type = HCI_ACLDATA_PKT; | |
281 | _urb_queue_tail(__pending_q(husb, _urb->type), _urb); | |
282 | ||
283 | urb = &_urb->urb; | |
284 | pipe = usb_rcvbulkpipe(husb->udev, husb->bulk_in_ep->desc.bEndpointAddress); | |
285 | usb_fill_bulk_urb(urb, husb->udev, pipe, buf, size, hci_usb_rx_complete, husb); | |
286 | urb->transfer_flags = 0; | |
287 | ||
288 | BT_DBG("%s urb %p", husb->hdev->name, urb); | |
289 | ||
290 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
291 | if (err) { | |
292 | BT_ERR("%s bulk rx submit failed urb %p err %d", | |
293 | husb->hdev->name, urb, err); | |
294 | _urb_unlink(_urb); | |
295 | _urb_free(_urb); | |
296 | kfree(buf); | |
297 | } | |
298 | return err; | |
299 | } | |
300 | ||
301 | #ifdef CONFIG_BT_HCIUSB_SCO | |
302 | static int hci_usb_isoc_rx_submit(struct hci_usb *husb) | |
303 | { | |
304 | struct _urb *_urb; | |
305 | struct urb *urb; | |
306 | int err, mtu, size; | |
307 | void *buf; | |
308 | ||
309 | mtu = le16_to_cpu(husb->isoc_in_ep->desc.wMaxPacketSize); | |
310 | size = mtu * HCI_MAX_ISOC_FRAMES; | |
311 | ||
312 | buf = kmalloc(size, GFP_ATOMIC); | |
313 | if (!buf) | |
314 | return -ENOMEM; | |
315 | ||
316 | _urb = _urb_alloc(HCI_MAX_ISOC_FRAMES, GFP_ATOMIC); | |
317 | if (!_urb) { | |
318 | kfree(buf); | |
319 | return -ENOMEM; | |
320 | } | |
321 | _urb->type = HCI_SCODATA_PKT; | |
322 | _urb_queue_tail(__pending_q(husb, _urb->type), _urb); | |
323 | ||
324 | urb = &_urb->urb; | |
325 | ||
326 | urb->context = husb; | |
327 | urb->dev = husb->udev; | |
328 | urb->pipe = usb_rcvisocpipe(husb->udev, husb->isoc_in_ep->desc.bEndpointAddress); | |
329 | urb->complete = hci_usb_rx_complete; | |
330 | ||
331 | urb->interval = husb->isoc_in_ep->desc.bInterval; | |
332 | ||
333 | urb->transfer_buffer_length = size; | |
334 | urb->transfer_buffer = buf; | |
335 | urb->transfer_flags = URB_ISO_ASAP; | |
336 | ||
337 | __fill_isoc_desc(urb, size, mtu); | |
338 | ||
339 | BT_DBG("%s urb %p", husb->hdev->name, urb); | |
340 | ||
341 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
342 | if (err) { | |
343 | BT_ERR("%s isoc rx submit failed urb %p err %d", | |
344 | husb->hdev->name, urb, err); | |
345 | _urb_unlink(_urb); | |
346 | _urb_free(_urb); | |
347 | kfree(buf); | |
348 | } | |
349 | return err; | |
350 | } | |
351 | #endif | |
352 | ||
353 | /* Initialize device */ | |
354 | static int hci_usb_open(struct hci_dev *hdev) | |
355 | { | |
356 | struct hci_usb *husb = (struct hci_usb *) hdev->driver_data; | |
357 | int i, err; | |
358 | unsigned long flags; | |
359 | ||
360 | BT_DBG("%s", hdev->name); | |
361 | ||
362 | if (test_and_set_bit(HCI_RUNNING, &hdev->flags)) | |
363 | return 0; | |
364 | ||
365 | write_lock_irqsave(&husb->completion_lock, flags); | |
366 | ||
367 | err = hci_usb_intr_rx_submit(husb); | |
368 | if (!err) { | |
369 | for (i = 0; i < HCI_MAX_BULK_RX; i++) | |
370 | hci_usb_bulk_rx_submit(husb); | |
371 | ||
372 | #ifdef CONFIG_BT_HCIUSB_SCO | |
373 | if (husb->isoc_iface) | |
374 | for (i = 0; i < HCI_MAX_ISOC_RX; i++) | |
375 | hci_usb_isoc_rx_submit(husb); | |
376 | #endif | |
377 | } else { | |
378 | clear_bit(HCI_RUNNING, &hdev->flags); | |
379 | } | |
380 | ||
381 | write_unlock_irqrestore(&husb->completion_lock, flags); | |
382 | return err; | |
383 | } | |
384 | ||
385 | /* Reset device */ | |
386 | static int hci_usb_flush(struct hci_dev *hdev) | |
387 | { | |
388 | struct hci_usb *husb = (struct hci_usb *) hdev->driver_data; | |
389 | int i; | |
390 | ||
391 | BT_DBG("%s", hdev->name); | |
392 | ||
393 | for (i = 0; i < 4; i++) | |
394 | skb_queue_purge(&husb->transmit_q[i]); | |
395 | return 0; | |
396 | } | |
397 | ||
398 | static void hci_usb_unlink_urbs(struct hci_usb *husb) | |
399 | { | |
400 | int i; | |
401 | ||
402 | BT_DBG("%s", husb->hdev->name); | |
403 | ||
404 | for (i = 0; i < 4; i++) { | |
405 | struct _urb *_urb; | |
406 | struct urb *urb; | |
407 | ||
408 | /* Kill pending requests */ | |
409 | while ((_urb = _urb_dequeue(&husb->pending_q[i]))) { | |
410 | urb = &_urb->urb; | |
411 | BT_DBG("%s unlinking _urb %p type %d urb %p", | |
412 | husb->hdev->name, _urb, _urb->type, urb); | |
413 | usb_kill_urb(urb); | |
414 | _urb_queue_tail(__completed_q(husb, _urb->type), _urb); | |
415 | } | |
416 | ||
417 | /* Release completed requests */ | |
418 | while ((_urb = _urb_dequeue(&husb->completed_q[i]))) { | |
419 | urb = &_urb->urb; | |
420 | BT_DBG("%s freeing _urb %p type %d urb %p", | |
421 | husb->hdev->name, _urb, _urb->type, urb); | |
e9a3e671 MH |
422 | kfree(urb->setup_packet); |
423 | kfree(urb->transfer_buffer); | |
1da177e4 LT |
424 | _urb_free(_urb); |
425 | } | |
426 | ||
427 | /* Release reassembly buffers */ | |
428 | if (husb->reassembly[i]) { | |
429 | kfree_skb(husb->reassembly[i]); | |
430 | husb->reassembly[i] = NULL; | |
431 | } | |
432 | } | |
433 | } | |
434 | ||
435 | /* Close device */ | |
436 | static int hci_usb_close(struct hci_dev *hdev) | |
437 | { | |
438 | struct hci_usb *husb = (struct hci_usb *) hdev->driver_data; | |
439 | unsigned long flags; | |
440 | ||
441 | if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags)) | |
442 | return 0; | |
443 | ||
444 | BT_DBG("%s", hdev->name); | |
445 | ||
446 | /* Synchronize with completion handlers */ | |
447 | write_lock_irqsave(&husb->completion_lock, flags); | |
448 | write_unlock_irqrestore(&husb->completion_lock, flags); | |
449 | ||
450 | hci_usb_unlink_urbs(husb); | |
451 | hci_usb_flush(hdev); | |
452 | return 0; | |
453 | } | |
454 | ||
455 | static int __tx_submit(struct hci_usb *husb, struct _urb *_urb) | |
456 | { | |
457 | struct urb *urb = &_urb->urb; | |
458 | int err; | |
459 | ||
460 | BT_DBG("%s urb %p type %d", husb->hdev->name, urb, _urb->type); | |
461 | ||
462 | _urb_queue_tail(__pending_q(husb, _urb->type), _urb); | |
463 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
464 | if (err) { | |
465 | BT_ERR("%s tx submit failed urb %p type %d err %d", | |
466 | husb->hdev->name, urb, _urb->type, err); | |
467 | _urb_unlink(_urb); | |
468 | _urb_queue_tail(__completed_q(husb, _urb->type), _urb); | |
469 | } else | |
470 | atomic_inc(__pending_tx(husb, _urb->type)); | |
471 | ||
472 | return err; | |
473 | } | |
474 | ||
475 | static inline int hci_usb_send_ctrl(struct hci_usb *husb, struct sk_buff *skb) | |
476 | { | |
0d48d939 | 477 | struct _urb *_urb = __get_completed(husb, bt_cb(skb)->pkt_type); |
1da177e4 LT |
478 | struct usb_ctrlrequest *dr; |
479 | struct urb *urb; | |
480 | ||
481 | if (!_urb) { | |
482 | _urb = _urb_alloc(0, GFP_ATOMIC); | |
483 | if (!_urb) | |
484 | return -ENOMEM; | |
0d48d939 | 485 | _urb->type = bt_cb(skb)->pkt_type; |
1da177e4 LT |
486 | |
487 | dr = kmalloc(sizeof(*dr), GFP_ATOMIC); | |
488 | if (!dr) { | |
489 | _urb_free(_urb); | |
490 | return -ENOMEM; | |
491 | } | |
492 | } else | |
493 | dr = (void *) _urb->urb.setup_packet; | |
494 | ||
495 | dr->bRequestType = husb->ctrl_req; | |
496 | dr->bRequest = 0; | |
497 | dr->wIndex = 0; | |
498 | dr->wValue = 0; | |
499 | dr->wLength = __cpu_to_le16(skb->len); | |
500 | ||
501 | urb = &_urb->urb; | |
502 | usb_fill_control_urb(urb, husb->udev, usb_sndctrlpipe(husb->udev, 0), | |
503 | (void *) dr, skb->data, skb->len, hci_usb_tx_complete, husb); | |
504 | ||
505 | BT_DBG("%s skb %p len %d", husb->hdev->name, skb, skb->len); | |
506 | ||
507 | _urb->priv = skb; | |
508 | return __tx_submit(husb, _urb); | |
509 | } | |
510 | ||
511 | static inline int hci_usb_send_bulk(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 | int pipe; | |
516 | ||
517 | if (!_urb) { | |
518 | _urb = _urb_alloc(0, GFP_ATOMIC); | |
519 | if (!_urb) | |
520 | return -ENOMEM; | |
0d48d939 | 521 | _urb->type = bt_cb(skb)->pkt_type; |
1da177e4 LT |
522 | } |
523 | ||
524 | urb = &_urb->urb; | |
525 | pipe = usb_sndbulkpipe(husb->udev, husb->bulk_out_ep->desc.bEndpointAddress); | |
526 | usb_fill_bulk_urb(urb, husb->udev, pipe, skb->data, skb->len, | |
527 | hci_usb_tx_complete, husb); | |
528 | urb->transfer_flags = URB_ZERO_PACKET; | |
529 | ||
530 | BT_DBG("%s skb %p len %d", husb->hdev->name, skb, skb->len); | |
531 | ||
532 | _urb->priv = skb; | |
533 | return __tx_submit(husb, _urb); | |
534 | } | |
535 | ||
536 | #ifdef CONFIG_BT_HCIUSB_SCO | |
537 | static inline int hci_usb_send_isoc(struct hci_usb *husb, struct sk_buff *skb) | |
538 | { | |
0d48d939 | 539 | struct _urb *_urb = __get_completed(husb, bt_cb(skb)->pkt_type); |
1da177e4 LT |
540 | struct urb *urb; |
541 | ||
542 | if (!_urb) { | |
543 | _urb = _urb_alloc(HCI_MAX_ISOC_FRAMES, GFP_ATOMIC); | |
544 | if (!_urb) | |
545 | return -ENOMEM; | |
0d48d939 | 546 | _urb->type = bt_cb(skb)->pkt_type; |
1da177e4 LT |
547 | } |
548 | ||
549 | BT_DBG("%s skb %p len %d", husb->hdev->name, skb, skb->len); | |
550 | ||
551 | urb = &_urb->urb; | |
552 | ||
553 | urb->context = husb; | |
554 | urb->dev = husb->udev; | |
555 | urb->pipe = usb_sndisocpipe(husb->udev, husb->isoc_out_ep->desc.bEndpointAddress); | |
556 | urb->complete = hci_usb_tx_complete; | |
557 | urb->transfer_flags = URB_ISO_ASAP; | |
558 | ||
559 | urb->interval = husb->isoc_out_ep->desc.bInterval; | |
560 | ||
561 | urb->transfer_buffer = skb->data; | |
562 | urb->transfer_buffer_length = skb->len; | |
563 | ||
564 | __fill_isoc_desc(urb, skb->len, le16_to_cpu(husb->isoc_out_ep->desc.wMaxPacketSize)); | |
565 | ||
566 | _urb->priv = skb; | |
567 | return __tx_submit(husb, _urb); | |
568 | } | |
569 | #endif | |
570 | ||
571 | static void hci_usb_tx_process(struct hci_usb *husb) | |
572 | { | |
573 | struct sk_buff_head *q; | |
574 | struct sk_buff *skb; | |
575 | ||
576 | BT_DBG("%s", husb->hdev->name); | |
577 | ||
578 | do { | |
579 | clear_bit(HCI_USB_TX_WAKEUP, &husb->state); | |
580 | ||
581 | /* Process command queue */ | |
582 | q = __transmit_q(husb, HCI_COMMAND_PKT); | |
583 | if (!atomic_read(__pending_tx(husb, HCI_COMMAND_PKT)) && | |
584 | (skb = skb_dequeue(q))) { | |
585 | if (hci_usb_send_ctrl(husb, skb) < 0) | |
586 | skb_queue_head(q, skb); | |
587 | } | |
588 | ||
589 | #ifdef CONFIG_BT_HCIUSB_SCO | |
590 | /* Process SCO queue */ | |
591 | q = __transmit_q(husb, HCI_SCODATA_PKT); | |
592 | if (atomic_read(__pending_tx(husb, HCI_SCODATA_PKT)) < HCI_MAX_ISOC_TX && | |
593 | (skb = skb_dequeue(q))) { | |
594 | if (hci_usb_send_isoc(husb, skb) < 0) | |
595 | skb_queue_head(q, skb); | |
596 | } | |
597 | #endif | |
598 | ||
599 | /* Process ACL queue */ | |
600 | q = __transmit_q(husb, HCI_ACLDATA_PKT); | |
601 | while (atomic_read(__pending_tx(husb, HCI_ACLDATA_PKT)) < HCI_MAX_BULK_TX && | |
602 | (skb = skb_dequeue(q))) { | |
603 | if (hci_usb_send_bulk(husb, skb) < 0) { | |
604 | skb_queue_head(q, skb); | |
605 | break; | |
606 | } | |
607 | } | |
608 | } while(test_bit(HCI_USB_TX_WAKEUP, &husb->state)); | |
609 | } | |
610 | ||
611 | static inline void hci_usb_tx_wakeup(struct hci_usb *husb) | |
612 | { | |
613 | /* Serialize TX queue processing to avoid data reordering */ | |
614 | if (!test_and_set_bit(HCI_USB_TX_PROCESS, &husb->state)) { | |
615 | hci_usb_tx_process(husb); | |
616 | clear_bit(HCI_USB_TX_PROCESS, &husb->state); | |
617 | } else | |
618 | set_bit(HCI_USB_TX_WAKEUP, &husb->state); | |
619 | } | |
620 | ||
621 | /* Send frames from HCI layer */ | |
622 | static int hci_usb_send_frame(struct sk_buff *skb) | |
623 | { | |
624 | struct hci_dev *hdev = (struct hci_dev *) skb->dev; | |
625 | struct hci_usb *husb; | |
626 | ||
627 | if (!hdev) { | |
628 | BT_ERR("frame for uknown device (hdev=NULL)"); | |
629 | return -ENODEV; | |
630 | } | |
631 | ||
632 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
633 | return -EBUSY; | |
634 | ||
0d48d939 | 635 | BT_DBG("%s type %d len %d", hdev->name, bt_cb(skb)->pkt_type, skb->len); |
1da177e4 LT |
636 | |
637 | husb = (struct hci_usb *) hdev->driver_data; | |
638 | ||
0d48d939 | 639 | switch (bt_cb(skb)->pkt_type) { |
1da177e4 LT |
640 | case HCI_COMMAND_PKT: |
641 | hdev->stat.cmd_tx++; | |
642 | break; | |
643 | ||
644 | case HCI_ACLDATA_PKT: | |
645 | hdev->stat.acl_tx++; | |
646 | break; | |
647 | ||
648 | #ifdef CONFIG_BT_HCIUSB_SCO | |
649 | case HCI_SCODATA_PKT: | |
650 | hdev->stat.sco_tx++; | |
651 | break; | |
652 | #endif | |
653 | ||
654 | default: | |
655 | kfree_skb(skb); | |
656 | return 0; | |
657 | } | |
658 | ||
659 | read_lock(&husb->completion_lock); | |
660 | ||
0d48d939 | 661 | skb_queue_tail(__transmit_q(husb, bt_cb(skb)->pkt_type), skb); |
1da177e4 LT |
662 | hci_usb_tx_wakeup(husb); |
663 | ||
664 | read_unlock(&husb->completion_lock); | |
665 | return 0; | |
666 | } | |
667 | ||
668 | static inline int __recv_frame(struct hci_usb *husb, int type, void *data, int count) | |
669 | { | |
670 | BT_DBG("%s type %d data %p count %d", husb->hdev->name, type, data, count); | |
671 | ||
672 | husb->hdev->stat.byte_rx += count; | |
673 | ||
674 | while (count) { | |
675 | struct sk_buff *skb = __reassembly(husb, type); | |
676 | struct { int expect; } *scb; | |
677 | int len = 0; | |
678 | ||
679 | if (!skb) { | |
680 | /* Start of the frame */ | |
681 | ||
682 | switch (type) { | |
683 | case HCI_EVENT_PKT: | |
684 | if (count >= HCI_EVENT_HDR_SIZE) { | |
685 | struct hci_event_hdr *h = data; | |
686 | len = HCI_EVENT_HDR_SIZE + h->plen; | |
687 | } else | |
688 | return -EILSEQ; | |
689 | break; | |
690 | ||
691 | case HCI_ACLDATA_PKT: | |
692 | if (count >= HCI_ACL_HDR_SIZE) { | |
693 | struct hci_acl_hdr *h = data; | |
694 | len = HCI_ACL_HDR_SIZE + __le16_to_cpu(h->dlen); | |
695 | } else | |
696 | return -EILSEQ; | |
697 | break; | |
698 | #ifdef CONFIG_BT_HCIUSB_SCO | |
699 | case HCI_SCODATA_PKT: | |
700 | if (count >= HCI_SCO_HDR_SIZE) { | |
701 | struct hci_sco_hdr *h = data; | |
702 | len = HCI_SCO_HDR_SIZE + h->dlen; | |
703 | } else | |
704 | return -EILSEQ; | |
705 | break; | |
706 | #endif | |
707 | } | |
708 | BT_DBG("new packet len %d", len); | |
709 | ||
710 | skb = bt_skb_alloc(len, GFP_ATOMIC); | |
711 | if (!skb) { | |
712 | BT_ERR("%s no memory for the packet", husb->hdev->name); | |
713 | return -ENOMEM; | |
714 | } | |
715 | skb->dev = (void *) husb->hdev; | |
0d48d939 | 716 | bt_cb(skb)->pkt_type = type; |
1da177e4 LT |
717 | |
718 | __reassembly(husb, type) = skb; | |
719 | ||
720 | scb = (void *) skb->cb; | |
721 | scb->expect = len; | |
722 | } else { | |
723 | /* Continuation */ | |
724 | scb = (void *) skb->cb; | |
725 | len = scb->expect; | |
726 | } | |
727 | ||
728 | len = min(len, count); | |
729 | ||
730 | memcpy(skb_put(skb, len), data, len); | |
731 | ||
732 | scb->expect -= len; | |
733 | if (!scb->expect) { | |
734 | /* Complete frame */ | |
735 | __reassembly(husb, type) = NULL; | |
0d48d939 | 736 | bt_cb(skb)->pkt_type = type; |
1da177e4 LT |
737 | hci_recv_frame(skb); |
738 | } | |
739 | ||
740 | count -= len; data += len; | |
741 | } | |
742 | return 0; | |
743 | } | |
744 | ||
7d12e780 | 745 | static void hci_usb_rx_complete(struct urb *urb) |
1da177e4 LT |
746 | { |
747 | struct _urb *_urb = container_of(urb, struct _urb, urb); | |
748 | struct hci_usb *husb = (void *) urb->context; | |
749 | struct hci_dev *hdev = husb->hdev; | |
750 | int err, count = urb->actual_length; | |
751 | ||
752 | BT_DBG("%s urb %p type %d status %d count %d flags %x", hdev->name, urb, | |
753 | _urb->type, urb->status, count, urb->transfer_flags); | |
754 | ||
755 | read_lock(&husb->completion_lock); | |
756 | ||
757 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
758 | goto unlock; | |
759 | ||
760 | if (urb->status || !count) | |
761 | goto resubmit; | |
762 | ||
763 | if (_urb->type == HCI_SCODATA_PKT) { | |
764 | #ifdef CONFIG_BT_HCIUSB_SCO | |
765 | int i; | |
766 | for (i=0; i < urb->number_of_packets; i++) { | |
767 | BT_DBG("desc %d status %d offset %d len %d", i, | |
768 | urb->iso_frame_desc[i].status, | |
769 | urb->iso_frame_desc[i].offset, | |
770 | urb->iso_frame_desc[i].actual_length); | |
771 | ||
772 | if (!urb->iso_frame_desc[i].status) | |
773 | __recv_frame(husb, _urb->type, | |
774 | urb->transfer_buffer + urb->iso_frame_desc[i].offset, | |
775 | urb->iso_frame_desc[i].actual_length); | |
776 | } | |
777 | #else | |
778 | ; | |
779 | #endif | |
780 | } else { | |
781 | err = __recv_frame(husb, _urb->type, urb->transfer_buffer, count); | |
782 | if (err < 0) { | |
783 | BT_ERR("%s corrupted packet: type %d count %d", | |
784 | husb->hdev->name, _urb->type, count); | |
785 | hdev->stat.err_rx++; | |
786 | } | |
787 | } | |
788 | ||
789 | resubmit: | |
790 | urb->dev = husb->udev; | |
791 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
792 | BT_DBG("%s urb %p type %d resubmit status %d", hdev->name, urb, | |
793 | _urb->type, err); | |
794 | ||
795 | unlock: | |
796 | read_unlock(&husb->completion_lock); | |
797 | } | |
798 | ||
7d12e780 | 799 | static void hci_usb_tx_complete(struct urb *urb) |
1da177e4 LT |
800 | { |
801 | struct _urb *_urb = container_of(urb, struct _urb, urb); | |
802 | struct hci_usb *husb = (void *) urb->context; | |
803 | struct hci_dev *hdev = husb->hdev; | |
804 | ||
805 | BT_DBG("%s urb %p status %d flags %x", hdev->name, urb, | |
806 | urb->status, urb->transfer_flags); | |
807 | ||
808 | atomic_dec(__pending_tx(husb, _urb->type)); | |
809 | ||
810 | urb->transfer_buffer = NULL; | |
811 | kfree_skb((struct sk_buff *) _urb->priv); | |
812 | ||
813 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
814 | return; | |
815 | ||
816 | if (!urb->status) | |
817 | hdev->stat.byte_tx += urb->transfer_buffer_length; | |
818 | else | |
819 | hdev->stat.err_tx++; | |
820 | ||
821 | read_lock(&husb->completion_lock); | |
822 | ||
823 | _urb_unlink(_urb); | |
824 | _urb_queue_tail(__completed_q(husb, _urb->type), _urb); | |
825 | ||
826 | hci_usb_tx_wakeup(husb); | |
827 | ||
828 | read_unlock(&husb->completion_lock); | |
829 | } | |
830 | ||
831 | static void hci_usb_destruct(struct hci_dev *hdev) | |
832 | { | |
833 | struct hci_usb *husb = (struct hci_usb *) hdev->driver_data; | |
834 | ||
835 | BT_DBG("%s", hdev->name); | |
836 | ||
837 | kfree(husb); | |
838 | } | |
839 | ||
840 | static void hci_usb_notify(struct hci_dev *hdev, unsigned int evt) | |
841 | { | |
842 | BT_DBG("%s evt %d", hdev->name, evt); | |
843 | } | |
844 | ||
845 | static int hci_usb_probe(struct usb_interface *intf, const struct usb_device_id *id) | |
846 | { | |
847 | struct usb_device *udev = interface_to_usbdev(intf); | |
848 | struct usb_host_endpoint *bulk_out_ep = NULL; | |
849 | struct usb_host_endpoint *bulk_in_ep = NULL; | |
850 | struct usb_host_endpoint *intr_in_ep = NULL; | |
851 | struct usb_host_endpoint *ep; | |
852 | struct usb_host_interface *uif; | |
853 | struct usb_interface *isoc_iface; | |
854 | struct hci_usb *husb; | |
855 | struct hci_dev *hdev; | |
856 | int i, e, size, isoc_ifnum, isoc_alts; | |
857 | ||
858 | BT_DBG("udev %p intf %p", udev, intf); | |
859 | ||
860 | if (!id->driver_info) { | |
861 | const struct usb_device_id *match; | |
862 | match = usb_match_id(intf, blacklist_ids); | |
863 | if (match) | |
864 | id = match; | |
865 | } | |
866 | ||
867 | if (ignore || id->driver_info & HCI_IGNORE) | |
868 | return -ENODEV; | |
869 | ||
7ef934b3 MH |
870 | if (ignore_dga && id->driver_info & HCI_DIGIANSWER) |
871 | return -ENODEV; | |
872 | ||
0915e886 MH |
873 | if (ignore_csr && id->driver_info & HCI_CSR) |
874 | return -ENODEV; | |
875 | ||
876 | if (ignore_sniffer && id->driver_info & HCI_SNIFFER) | |
877 | return -ENODEV; | |
878 | ||
1da177e4 LT |
879 | if (intf->cur_altsetting->desc.bInterfaceNumber > 0) |
880 | return -ENODEV; | |
881 | ||
882 | /* Find endpoints that we need */ | |
883 | uif = intf->cur_altsetting; | |
884 | for (e = 0; e < uif->desc.bNumEndpoints; e++) { | |
885 | ep = &uif->endpoint[e]; | |
886 | ||
887 | switch (ep->desc.bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) { | |
888 | case USB_ENDPOINT_XFER_INT: | |
889 | if (ep->desc.bEndpointAddress & USB_DIR_IN) | |
890 | intr_in_ep = ep; | |
891 | break; | |
892 | ||
893 | case USB_ENDPOINT_XFER_BULK: | |
894 | if (ep->desc.bEndpointAddress & USB_DIR_IN) | |
895 | bulk_in_ep = ep; | |
896 | else | |
897 | bulk_out_ep = ep; | |
898 | break; | |
899 | } | |
900 | } | |
901 | ||
902 | if (!bulk_in_ep || !bulk_out_ep || !intr_in_ep) { | |
903 | BT_DBG("Bulk endpoints not found"); | |
904 | goto done; | |
905 | } | |
906 | ||
089b1dbb | 907 | if (!(husb = kzalloc(sizeof(struct hci_usb), GFP_KERNEL))) { |
1da177e4 LT |
908 | BT_ERR("Can't allocate: control structure"); |
909 | goto done; | |
910 | } | |
911 | ||
1da177e4 LT |
912 | husb->udev = udev; |
913 | husb->bulk_out_ep = bulk_out_ep; | |
914 | husb->bulk_in_ep = bulk_in_ep; | |
915 | husb->intr_in_ep = intr_in_ep; | |
916 | ||
917 | if (id->driver_info & HCI_DIGIANSWER) | |
918 | husb->ctrl_req = USB_TYPE_VENDOR; | |
919 | else | |
920 | husb->ctrl_req = USB_TYPE_CLASS; | |
921 | ||
922 | /* Find isochronous endpoints that we can use */ | |
923 | size = 0; | |
924 | isoc_iface = NULL; | |
925 | isoc_alts = 0; | |
926 | isoc_ifnum = 1; | |
927 | ||
928 | #ifdef CONFIG_BT_HCIUSB_SCO | |
929 | if (isoc && !(id->driver_info & (HCI_BROKEN_ISOC | HCI_SNIFFER))) | |
930 | isoc_iface = usb_ifnum_to_if(udev, isoc_ifnum); | |
931 | ||
932 | if (isoc_iface) { | |
933 | int a; | |
934 | struct usb_host_endpoint *isoc_out_ep = NULL; | |
935 | struct usb_host_endpoint *isoc_in_ep = NULL; | |
936 | ||
937 | for (a = 0; a < isoc_iface->num_altsetting; a++) { | |
938 | uif = &isoc_iface->altsetting[a]; | |
939 | for (e = 0; e < uif->desc.bNumEndpoints; e++) { | |
940 | ep = &uif->endpoint[e]; | |
941 | ||
942 | switch (ep->desc.bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) { | |
943 | case USB_ENDPOINT_XFER_ISOC: | |
944 | if (le16_to_cpu(ep->desc.wMaxPacketSize) < size || | |
945 | uif->desc.bAlternateSetting != isoc) | |
946 | break; | |
947 | size = le16_to_cpu(ep->desc.wMaxPacketSize); | |
948 | ||
949 | isoc_alts = uif->desc.bAlternateSetting; | |
950 | ||
951 | if (ep->desc.bEndpointAddress & USB_DIR_IN) | |
952 | isoc_in_ep = ep; | |
953 | else | |
954 | isoc_out_ep = ep; | |
955 | break; | |
956 | } | |
957 | } | |
958 | } | |
959 | ||
960 | if (!isoc_in_ep || !isoc_out_ep) | |
961 | BT_DBG("Isoc endpoints not found"); | |
962 | else { | |
963 | BT_DBG("isoc ifnum %d alts %d", isoc_ifnum, isoc_alts); | |
964 | if (usb_driver_claim_interface(&hci_usb_driver, isoc_iface, husb) != 0) | |
965 | BT_ERR("Can't claim isoc interface"); | |
966 | else if (usb_set_interface(udev, isoc_ifnum, isoc_alts)) { | |
967 | BT_ERR("Can't set isoc interface settings"); | |
968 | husb->isoc_iface = isoc_iface; | |
969 | usb_driver_release_interface(&hci_usb_driver, isoc_iface); | |
970 | husb->isoc_iface = NULL; | |
971 | } else { | |
972 | husb->isoc_iface = isoc_iface; | |
973 | husb->isoc_in_ep = isoc_in_ep; | |
974 | husb->isoc_out_ep = isoc_out_ep; | |
975 | } | |
976 | } | |
977 | } | |
978 | #endif | |
979 | ||
980 | rwlock_init(&husb->completion_lock); | |
981 | ||
982 | for (i = 0; i < 4; i++) { | |
983 | skb_queue_head_init(&husb->transmit_q[i]); | |
984 | _urb_queue_init(&husb->pending_q[i]); | |
985 | _urb_queue_init(&husb->completed_q[i]); | |
986 | } | |
987 | ||
988 | /* Initialize and register HCI device */ | |
989 | hdev = hci_alloc_dev(); | |
990 | if (!hdev) { | |
991 | BT_ERR("Can't allocate HCI device"); | |
992 | goto probe_error; | |
993 | } | |
994 | ||
995 | husb->hdev = hdev; | |
996 | ||
997 | hdev->type = HCI_USB; | |
998 | hdev->driver_data = husb; | |
999 | SET_HCIDEV_DEV(hdev, &intf->dev); | |
1000 | ||
1001 | hdev->open = hci_usb_open; | |
1002 | hdev->close = hci_usb_close; | |
1003 | hdev->flush = hci_usb_flush; | |
1004 | hdev->send = hci_usb_send_frame; | |
1005 | hdev->destruct = hci_usb_destruct; | |
1006 | hdev->notify = hci_usb_notify; | |
1007 | ||
1008 | hdev->owner = THIS_MODULE; | |
1009 | ||
1010 | if (reset || id->driver_info & HCI_RESET) | |
1011 | set_bit(HCI_QUIRK_RESET_ON_INIT, &hdev->quirks); | |
1012 | ||
520ca78a MH |
1013 | if (force_scofix || id->driver_info & HCI_WRONG_SCO_MTU) { |
1014 | if (!disable_scofix) | |
1015 | set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks); | |
1016 | } | |
da1f5198 | 1017 | |
1da177e4 LT |
1018 | if (id->driver_info & HCI_SNIFFER) { |
1019 | if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997) | |
1020 | set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); | |
1021 | } | |
1022 | ||
1023 | if (id->driver_info & HCI_BCM92035) { | |
1024 | unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 }; | |
1025 | struct sk_buff *skb; | |
1026 | ||
1027 | skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL); | |
1028 | if (skb) { | |
1029 | memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd)); | |
1030 | skb_queue_tail(&hdev->driver_init, skb); | |
1031 | } | |
1032 | } | |
1033 | ||
1034 | if (hci_register_dev(hdev) < 0) { | |
1035 | BT_ERR("Can't register HCI device"); | |
1036 | hci_free_dev(hdev); | |
1037 | goto probe_error; | |
1038 | } | |
1039 | ||
1040 | usb_set_intfdata(intf, husb); | |
1041 | return 0; | |
1042 | ||
1043 | probe_error: | |
1044 | if (husb->isoc_iface) | |
1045 | usb_driver_release_interface(&hci_usb_driver, husb->isoc_iface); | |
1046 | kfree(husb); | |
1047 | ||
1048 | done: | |
1049 | return -EIO; | |
1050 | } | |
1051 | ||
1052 | static void hci_usb_disconnect(struct usb_interface *intf) | |
1053 | { | |
1054 | struct hci_usb *husb = usb_get_intfdata(intf); | |
1055 | struct hci_dev *hdev; | |
1056 | ||
1057 | if (!husb || intf == husb->isoc_iface) | |
1058 | return; | |
1059 | ||
1060 | usb_set_intfdata(intf, NULL); | |
1061 | hdev = husb->hdev; | |
1062 | ||
1063 | BT_DBG("%s", hdev->name); | |
1064 | ||
1065 | hci_usb_close(hdev); | |
1066 | ||
1067 | if (husb->isoc_iface) | |
1068 | usb_driver_release_interface(&hci_usb_driver, husb->isoc_iface); | |
1069 | ||
1070 | if (hci_unregister_dev(hdev) < 0) | |
1071 | BT_ERR("Can't unregister HCI device %s", hdev->name); | |
1072 | ||
1073 | hci_free_dev(hdev); | |
1074 | } | |
1075 | ||
dcdcf63e MH |
1076 | static int hci_usb_suspend(struct usb_interface *intf, pm_message_t message) |
1077 | { | |
1078 | struct hci_usb *husb = usb_get_intfdata(intf); | |
1079 | struct list_head killed; | |
1080 | unsigned long flags; | |
1081 | int i; | |
1082 | ||
1083 | if (!husb || intf == husb->isoc_iface) | |
1084 | return 0; | |
1085 | ||
1086 | hci_suspend_dev(husb->hdev); | |
1087 | ||
1088 | INIT_LIST_HEAD(&killed); | |
1089 | ||
1090 | for (i = 0; i < 4; i++) { | |
1091 | struct _urb_queue *q = &husb->pending_q[i]; | |
1092 | struct _urb *_urb, *_tmp; | |
1093 | ||
1094 | while ((_urb = _urb_dequeue(q))) { | |
1095 | /* reset queue since _urb_dequeue sets it to NULL */ | |
1096 | _urb->queue = q; | |
1097 | usb_kill_urb(&_urb->urb); | |
1098 | list_add(&_urb->list, &killed); | |
1099 | } | |
1100 | ||
1101 | spin_lock_irqsave(&q->lock, flags); | |
1102 | ||
1103 | list_for_each_entry_safe(_urb, _tmp, &killed, list) { | |
1104 | list_move_tail(&_urb->list, &q->head); | |
1105 | } | |
1106 | ||
1107 | spin_unlock_irqrestore(&q->lock, flags); | |
1108 | } | |
1109 | ||
1110 | return 0; | |
1111 | } | |
1112 | ||
1113 | static int hci_usb_resume(struct usb_interface *intf) | |
1114 | { | |
1115 | struct hci_usb *husb = usb_get_intfdata(intf); | |
1116 | unsigned long flags; | |
1117 | int i, err = 0; | |
1118 | ||
1119 | if (!husb || intf == husb->isoc_iface) | |
1120 | return 0; | |
1121 | ||
1122 | for (i = 0; i < 4; i++) { | |
1123 | struct _urb_queue *q = &husb->pending_q[i]; | |
1124 | struct _urb *_urb; | |
1125 | ||
1126 | spin_lock_irqsave(&q->lock, flags); | |
1127 | ||
1128 | list_for_each_entry(_urb, &q->head, list) { | |
1129 | err = usb_submit_urb(&_urb->urb, GFP_ATOMIC); | |
1130 | if (err) | |
1131 | break; | |
1132 | } | |
1133 | ||
1134 | spin_unlock_irqrestore(&q->lock, flags); | |
1135 | ||
1136 | if (err) | |
1137 | return -EIO; | |
1138 | } | |
1139 | ||
1140 | hci_resume_dev(husb->hdev); | |
1141 | ||
1142 | return 0; | |
1143 | } | |
1144 | ||
1da177e4 | 1145 | static struct usb_driver hci_usb_driver = { |
1da177e4 LT |
1146 | .name = "hci_usb", |
1147 | .probe = hci_usb_probe, | |
1148 | .disconnect = hci_usb_disconnect, | |
dcdcf63e MH |
1149 | .suspend = hci_usb_suspend, |
1150 | .resume = hci_usb_resume, | |
1da177e4 LT |
1151 | .id_table = bluetooth_ids, |
1152 | }; | |
1153 | ||
1154 | static int __init hci_usb_init(void) | |
1155 | { | |
1156 | int err; | |
1157 | ||
1158 | BT_INFO("HCI USB driver ver %s", VERSION); | |
1159 | ||
1160 | if ((err = usb_register(&hci_usb_driver)) < 0) | |
1161 | BT_ERR("Failed to register HCI USB driver"); | |
1162 | ||
1163 | return err; | |
1164 | } | |
1165 | ||
1166 | static void __exit hci_usb_exit(void) | |
1167 | { | |
1168 | usb_deregister(&hci_usb_driver); | |
1169 | } | |
1170 | ||
1171 | module_init(hci_usb_init); | |
1172 | module_exit(hci_usb_exit); | |
1173 | ||
1174 | module_param(ignore, bool, 0644); | |
1175 | MODULE_PARM_DESC(ignore, "Ignore devices from the matching table"); | |
1176 | ||
7ef934b3 MH |
1177 | module_param(ignore_dga, bool, 0644); |
1178 | MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001"); | |
1179 | ||
0915e886 MH |
1180 | module_param(ignore_csr, bool, 0644); |
1181 | MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001"); | |
1182 | ||
1183 | module_param(ignore_sniffer, bool, 0644); | |
1184 | MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002"); | |
1185 | ||
520ca78a MH |
1186 | module_param(disable_scofix, bool, 0644); |
1187 | MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size"); | |
1188 | ||
1189 | module_param(force_scofix, bool, 0644); | |
1190 | MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size"); | |
1191 | ||
1da177e4 LT |
1192 | module_param(reset, bool, 0644); |
1193 | MODULE_PARM_DESC(reset, "Send HCI reset command on initialization"); | |
1194 | ||
1195 | #ifdef CONFIG_BT_HCIUSB_SCO | |
1196 | module_param(isoc, int, 0644); | |
1197 | MODULE_PARM_DESC(isoc, "Set isochronous transfers for SCO over HCI support"); | |
1198 | #endif | |
1199 | ||
1200 | MODULE_AUTHOR("Maxim Krasnyansky <maxk@qualcomm.com>, Marcel Holtmann <marcel@holtmann.org>"); | |
1201 | MODULE_DESCRIPTION("Bluetooth HCI USB driver ver " VERSION); | |
1202 | MODULE_VERSION(VERSION); | |
1203 | MODULE_LICENSE("GPL"); |