Commit | Line | Data |
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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> | |
38 | #include <linux/sched.h> | |
39 | #include <linux/unistd.h> | |
40 | #include <linux/types.h> | |
41 | #include <linux/interrupt.h> | |
42 | #include <linux/moduleparam.h> | |
43 | ||
44 | #include <linux/slab.h> | |
45 | #include <linux/errno.h> | |
46 | #include <linux/string.h> | |
47 | #include <linux/skbuff.h> | |
48 | ||
49 | #include <linux/usb.h> | |
50 | ||
51 | #include <net/bluetooth/bluetooth.h> | |
52 | #include <net/bluetooth/hci_core.h> | |
53 | ||
54 | #include "hci_usb.h" | |
55 | ||
56 | #ifndef CONFIG_BT_HCIUSB_DEBUG | |
57 | #undef BT_DBG | |
58 | #define BT_DBG(D...) | |
1da177e4 LT |
59 | #endif |
60 | ||
61 | #ifndef CONFIG_BT_HCIUSB_ZERO_PACKET | |
62 | #undef URB_ZERO_PACKET | |
63 | #define URB_ZERO_PACKET 0 | |
64 | #endif | |
65 | ||
66 | static int ignore = 0; | |
7ef934b3 | 67 | static int ignore_dga = 0; |
0915e886 MH |
68 | static int ignore_csr = 0; |
69 | static int ignore_sniffer = 0; | |
520ca78a MH |
70 | static int disable_scofix = 0; |
71 | static int force_scofix = 0; | |
1da177e4 LT |
72 | static int reset = 0; |
73 | ||
74 | #ifdef CONFIG_BT_HCIUSB_SCO | |
75 | static int isoc = 2; | |
76 | #endif | |
77 | ||
0915e886 | 78 | #define VERSION "2.9" |
1da177e4 LT |
79 | |
80 | static struct usb_driver hci_usb_driver; | |
81 | ||
82 | static struct usb_device_id bluetooth_ids[] = { | |
83 | /* Generic Bluetooth USB device */ | |
84 | { USB_DEVICE_INFO(HCI_DEV_CLASS, HCI_DEV_SUBCLASS, HCI_DEV_PROTOCOL) }, | |
85 | ||
86 | /* AVM BlueFRITZ! USB v2.0 */ | |
87 | { USB_DEVICE(0x057c, 0x3800) }, | |
88 | ||
89 | /* Bluetooth Ultraport Module from IBM */ | |
90 | { USB_DEVICE(0x04bf, 0x030a) }, | |
91 | ||
92 | /* ALPS Modules with non-standard id */ | |
93 | { USB_DEVICE(0x044e, 0x3001) }, | |
94 | { USB_DEVICE(0x044e, 0x3002) }, | |
95 | ||
96 | /* Ericsson with non-standard id */ | |
97 | { USB_DEVICE(0x0bdb, 0x1002) }, | |
98 | ||
62ae1591 MH |
99 | /* Canyon CN-BTU1 with HID interfaces */ |
100 | { USB_DEVICE(0x0c10, 0x0000), .driver_info = HCI_RESET }, | |
101 | ||
1da177e4 LT |
102 | { } /* Terminating entry */ |
103 | }; | |
104 | ||
105 | MODULE_DEVICE_TABLE (usb, bluetooth_ids); | |
106 | ||
107 | static struct usb_device_id blacklist_ids[] = { | |
0915e886 MH |
108 | /* CSR BlueCore devices */ |
109 | { USB_DEVICE(0x0a12, 0x0001), .driver_info = HCI_CSR }, | |
110 | ||
1da177e4 LT |
111 | /* Broadcom BCM2033 without firmware */ |
112 | { USB_DEVICE(0x0a5c, 0x2033), .driver_info = HCI_IGNORE }, | |
113 | ||
114 | /* Broadcom BCM2035 */ | |
e9e9290f | 115 | { USB_DEVICE(0x0a5c, 0x200a), .driver_info = HCI_RESET | HCI_WRONG_SCO_MTU }, |
1da177e4 LT |
116 | { USB_DEVICE(0x0a5c, 0x2009), .driver_info = HCI_BCM92035 }, |
117 | ||
520ca78a MH |
118 | /* IBM/Lenovo ThinkPad with Broadcom chip */ |
119 | { USB_DEVICE(0x0a5c, 0x201e), .driver_info = HCI_WRONG_SCO_MTU }, | |
5939be43 | 120 | { USB_DEVICE(0x0a5c, 0x2110), .driver_info = HCI_WRONG_SCO_MTU }, |
520ca78a | 121 | |
0eab934f MH |
122 | /* ANYCOM Bluetooth USB-200 and USB-250 */ |
123 | { USB_DEVICE(0x0a5c, 0x2111), .driver_info = HCI_RESET }, | |
124 | ||
da942704 MH |
125 | /* HP laptop with Broadcom chip */ |
126 | { USB_DEVICE(0x03f0, 0x171d), .driver_info = HCI_WRONG_SCO_MTU }, | |
127 | ||
86112ffd MH |
128 | /* Dell laptop with Broadcom chip */ |
129 | { USB_DEVICE(0x413c, 0x8126), .driver_info = HCI_WRONG_SCO_MTU }, | |
130 | ||
1da177e4 LT |
131 | /* Microsoft Wireless Transceiver for Bluetooth 2.0 */ |
132 | { USB_DEVICE(0x045e, 0x009c), .driver_info = HCI_RESET }, | |
133 | ||
cad0f627 MH |
134 | /* Kensington Bluetooth USB adapter */ |
135 | { USB_DEVICE(0x047d, 0x105d), .driver_info = HCI_RESET }, | |
71c83515 | 136 | { USB_DEVICE(0x047d, 0x105e), .driver_info = HCI_WRONG_SCO_MTU }, |
cad0f627 | 137 | |
1da177e4 LT |
138 | /* ISSC Bluetooth Adapter v3.1 */ |
139 | { USB_DEVICE(0x1131, 0x1001), .driver_info = HCI_RESET }, | |
140 | ||
8e4f7230 | 141 | /* RTX Telecom based adapters with buggy SCO support */ |
1da177e4 | 142 | { USB_DEVICE(0x0400, 0x0807), .driver_info = HCI_BROKEN_ISOC }, |
8e4f7230 | 143 | { USB_DEVICE(0x0400, 0x080a), .driver_info = HCI_BROKEN_ISOC }, |
1da177e4 | 144 | |
ea9727f6 | 145 | /* Belkin F8T012 and F8T013 devices */ |
da1f5198 | 146 | { USB_DEVICE(0x050d, 0x0012), .driver_info = HCI_WRONG_SCO_MTU }, |
ea9727f6 | 147 | { USB_DEVICE(0x050d, 0x0013), .driver_info = HCI_WRONG_SCO_MTU }, |
da1f5198 | 148 | |
1da177e4 LT |
149 | /* Digianswer devices */ |
150 | { USB_DEVICE(0x08fd, 0x0001), .driver_info = HCI_DIGIANSWER }, | |
151 | { USB_DEVICE(0x08fd, 0x0002), .driver_info = HCI_IGNORE }, | |
152 | ||
153 | /* CSR BlueCore Bluetooth Sniffer */ | |
154 | { USB_DEVICE(0x0a12, 0x0002), .driver_info = HCI_SNIFFER }, | |
155 | ||
2b86ad21 MH |
156 | /* Frontline ComProbe Bluetooth Sniffer */ |
157 | { USB_DEVICE(0x16d3, 0x0002), .driver_info = HCI_SNIFFER }, | |
158 | ||
1da177e4 LT |
159 | { } /* Terminating entry */ |
160 | }; | |
161 | ||
dd0fc66f | 162 | static struct _urb *_urb_alloc(int isoc, gfp_t gfp) |
1da177e4 LT |
163 | { |
164 | struct _urb *_urb = kmalloc(sizeof(struct _urb) + | |
165 | sizeof(struct usb_iso_packet_descriptor) * isoc, gfp); | |
166 | if (_urb) { | |
167 | memset(_urb, 0, sizeof(*_urb)); | |
168 | usb_init_urb(&_urb->urb); | |
169 | } | |
170 | return _urb; | |
171 | } | |
172 | ||
173 | static struct _urb *_urb_dequeue(struct _urb_queue *q) | |
174 | { | |
175 | struct _urb *_urb = NULL; | |
176 | unsigned long flags; | |
177 | spin_lock_irqsave(&q->lock, flags); | |
178 | { | |
179 | struct list_head *head = &q->head; | |
180 | struct list_head *next = head->next; | |
181 | if (next != head) { | |
182 | _urb = list_entry(next, struct _urb, list); | |
183 | list_del(next); _urb->queue = NULL; | |
184 | } | |
185 | } | |
186 | spin_unlock_irqrestore(&q->lock, flags); | |
187 | return _urb; | |
188 | } | |
189 | ||
7d12e780 DH |
190 | static void hci_usb_rx_complete(struct urb *urb); |
191 | static void hci_usb_tx_complete(struct urb *urb); | |
1da177e4 LT |
192 | |
193 | #define __pending_tx(husb, type) (&husb->pending_tx[type-1]) | |
194 | #define __pending_q(husb, type) (&husb->pending_q[type-1]) | |
195 | #define __completed_q(husb, type) (&husb->completed_q[type-1]) | |
196 | #define __transmit_q(husb, type) (&husb->transmit_q[type-1]) | |
197 | #define __reassembly(husb, type) (husb->reassembly[type-1]) | |
198 | ||
199 | static inline struct _urb *__get_completed(struct hci_usb *husb, int type) | |
200 | { | |
201 | return _urb_dequeue(__completed_q(husb, type)); | |
202 | } | |
203 | ||
204 | #ifdef CONFIG_BT_HCIUSB_SCO | |
205 | static void __fill_isoc_desc(struct urb *urb, int len, int mtu) | |
206 | { | |
207 | int offset = 0, i; | |
208 | ||
209 | BT_DBG("len %d mtu %d", len, mtu); | |
210 | ||
211 | for (i=0; i < HCI_MAX_ISOC_FRAMES && len >= mtu; i++, offset += mtu, len -= mtu) { | |
212 | urb->iso_frame_desc[i].offset = offset; | |
213 | urb->iso_frame_desc[i].length = mtu; | |
214 | BT_DBG("desc %d offset %d len %d", i, offset, mtu); | |
215 | } | |
216 | if (len && i < HCI_MAX_ISOC_FRAMES) { | |
217 | urb->iso_frame_desc[i].offset = offset; | |
218 | urb->iso_frame_desc[i].length = len; | |
219 | BT_DBG("desc %d offset %d len %d", i, offset, len); | |
220 | i++; | |
221 | } | |
222 | urb->number_of_packets = i; | |
223 | } | |
224 | #endif | |
225 | ||
226 | static int hci_usb_intr_rx_submit(struct hci_usb *husb) | |
227 | { | |
228 | struct _urb *_urb; | |
229 | struct urb *urb; | |
230 | int err, pipe, interval, size; | |
231 | void *buf; | |
232 | ||
233 | BT_DBG("%s", husb->hdev->name); | |
234 | ||
235 | size = le16_to_cpu(husb->intr_in_ep->desc.wMaxPacketSize); | |
236 | ||
237 | buf = kmalloc(size, GFP_ATOMIC); | |
238 | if (!buf) | |
239 | return -ENOMEM; | |
240 | ||
241 | _urb = _urb_alloc(0, GFP_ATOMIC); | |
242 | if (!_urb) { | |
243 | kfree(buf); | |
244 | return -ENOMEM; | |
245 | } | |
246 | _urb->type = HCI_EVENT_PKT; | |
247 | _urb_queue_tail(__pending_q(husb, _urb->type), _urb); | |
248 | ||
249 | urb = &_urb->urb; | |
250 | pipe = usb_rcvintpipe(husb->udev, husb->intr_in_ep->desc.bEndpointAddress); | |
251 | interval = husb->intr_in_ep->desc.bInterval; | |
252 | usb_fill_int_urb(urb, husb->udev, pipe, buf, size, hci_usb_rx_complete, husb, interval); | |
253 | ||
254 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
255 | if (err) { | |
256 | BT_ERR("%s intr rx submit failed urb %p err %d", | |
257 | husb->hdev->name, urb, err); | |
258 | _urb_unlink(_urb); | |
259 | _urb_free(_urb); | |
260 | kfree(buf); | |
261 | } | |
262 | return err; | |
263 | } | |
264 | ||
265 | static int hci_usb_bulk_rx_submit(struct hci_usb *husb) | |
266 | { | |
267 | struct _urb *_urb; | |
268 | struct urb *urb; | |
269 | int err, pipe, size = HCI_MAX_FRAME_SIZE; | |
270 | void *buf; | |
271 | ||
272 | buf = kmalloc(size, GFP_ATOMIC); | |
273 | if (!buf) | |
274 | return -ENOMEM; | |
275 | ||
276 | _urb = _urb_alloc(0, GFP_ATOMIC); | |
277 | if (!_urb) { | |
278 | kfree(buf); | |
279 | return -ENOMEM; | |
280 | } | |
281 | _urb->type = HCI_ACLDATA_PKT; | |
282 | _urb_queue_tail(__pending_q(husb, _urb->type), _urb); | |
283 | ||
284 | urb = &_urb->urb; | |
285 | pipe = usb_rcvbulkpipe(husb->udev, husb->bulk_in_ep->desc.bEndpointAddress); | |
286 | usb_fill_bulk_urb(urb, husb->udev, pipe, buf, size, hci_usb_rx_complete, husb); | |
287 | urb->transfer_flags = 0; | |
288 | ||
289 | BT_DBG("%s urb %p", husb->hdev->name, urb); | |
290 | ||
291 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
292 | if (err) { | |
293 | BT_ERR("%s bulk rx submit failed urb %p err %d", | |
294 | husb->hdev->name, urb, err); | |
295 | _urb_unlink(_urb); | |
296 | _urb_free(_urb); | |
297 | kfree(buf); | |
298 | } | |
299 | return err; | |
300 | } | |
301 | ||
302 | #ifdef CONFIG_BT_HCIUSB_SCO | |
303 | static int hci_usb_isoc_rx_submit(struct hci_usb *husb) | |
304 | { | |
305 | struct _urb *_urb; | |
306 | struct urb *urb; | |
307 | int err, mtu, size; | |
308 | void *buf; | |
309 | ||
310 | mtu = le16_to_cpu(husb->isoc_in_ep->desc.wMaxPacketSize); | |
311 | size = mtu * HCI_MAX_ISOC_FRAMES; | |
312 | ||
313 | buf = kmalloc(size, GFP_ATOMIC); | |
314 | if (!buf) | |
315 | return -ENOMEM; | |
316 | ||
317 | _urb = _urb_alloc(HCI_MAX_ISOC_FRAMES, GFP_ATOMIC); | |
318 | if (!_urb) { | |
319 | kfree(buf); | |
320 | return -ENOMEM; | |
321 | } | |
322 | _urb->type = HCI_SCODATA_PKT; | |
323 | _urb_queue_tail(__pending_q(husb, _urb->type), _urb); | |
324 | ||
325 | urb = &_urb->urb; | |
326 | ||
327 | urb->context = husb; | |
328 | urb->dev = husb->udev; | |
329 | urb->pipe = usb_rcvisocpipe(husb->udev, husb->isoc_in_ep->desc.bEndpointAddress); | |
330 | urb->complete = hci_usb_rx_complete; | |
331 | ||
332 | urb->interval = husb->isoc_in_ep->desc.bInterval; | |
333 | ||
334 | urb->transfer_buffer_length = size; | |
335 | urb->transfer_buffer = buf; | |
336 | urb->transfer_flags = URB_ISO_ASAP; | |
337 | ||
338 | __fill_isoc_desc(urb, size, mtu); | |
339 | ||
340 | BT_DBG("%s urb %p", husb->hdev->name, urb); | |
341 | ||
342 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
343 | if (err) { | |
344 | BT_ERR("%s isoc rx submit failed urb %p err %d", | |
345 | husb->hdev->name, urb, err); | |
346 | _urb_unlink(_urb); | |
347 | _urb_free(_urb); | |
348 | kfree(buf); | |
349 | } | |
350 | return err; | |
351 | } | |
352 | #endif | |
353 | ||
354 | /* Initialize device */ | |
355 | static int hci_usb_open(struct hci_dev *hdev) | |
356 | { | |
357 | struct hci_usb *husb = (struct hci_usb *) hdev->driver_data; | |
358 | int i, err; | |
359 | unsigned long flags; | |
360 | ||
361 | BT_DBG("%s", hdev->name); | |
362 | ||
363 | if (test_and_set_bit(HCI_RUNNING, &hdev->flags)) | |
364 | return 0; | |
365 | ||
366 | write_lock_irqsave(&husb->completion_lock, flags); | |
367 | ||
368 | err = hci_usb_intr_rx_submit(husb); | |
369 | if (!err) { | |
370 | for (i = 0; i < HCI_MAX_BULK_RX; i++) | |
371 | hci_usb_bulk_rx_submit(husb); | |
372 | ||
373 | #ifdef CONFIG_BT_HCIUSB_SCO | |
374 | if (husb->isoc_iface) | |
375 | for (i = 0; i < HCI_MAX_ISOC_RX; i++) | |
376 | hci_usb_isoc_rx_submit(husb); | |
377 | #endif | |
378 | } else { | |
379 | clear_bit(HCI_RUNNING, &hdev->flags); | |
380 | } | |
381 | ||
382 | write_unlock_irqrestore(&husb->completion_lock, flags); | |
383 | return err; | |
384 | } | |
385 | ||
386 | /* Reset device */ | |
387 | static int hci_usb_flush(struct hci_dev *hdev) | |
388 | { | |
389 | struct hci_usb *husb = (struct hci_usb *) hdev->driver_data; | |
390 | int i; | |
391 | ||
392 | BT_DBG("%s", hdev->name); | |
393 | ||
394 | for (i = 0; i < 4; i++) | |
395 | skb_queue_purge(&husb->transmit_q[i]); | |
396 | return 0; | |
397 | } | |
398 | ||
399 | static void hci_usb_unlink_urbs(struct hci_usb *husb) | |
400 | { | |
401 | int i; | |
402 | ||
403 | BT_DBG("%s", husb->hdev->name); | |
404 | ||
405 | for (i = 0; i < 4; i++) { | |
406 | struct _urb *_urb; | |
407 | struct urb *urb; | |
408 | ||
409 | /* Kill pending requests */ | |
410 | while ((_urb = _urb_dequeue(&husb->pending_q[i]))) { | |
411 | urb = &_urb->urb; | |
412 | BT_DBG("%s unlinking _urb %p type %d urb %p", | |
413 | husb->hdev->name, _urb, _urb->type, urb); | |
414 | usb_kill_urb(urb); | |
415 | _urb_queue_tail(__completed_q(husb, _urb->type), _urb); | |
416 | } | |
417 | ||
418 | /* Release completed requests */ | |
419 | while ((_urb = _urb_dequeue(&husb->completed_q[i]))) { | |
420 | urb = &_urb->urb; | |
421 | BT_DBG("%s freeing _urb %p type %d urb %p", | |
422 | husb->hdev->name, _urb, _urb->type, urb); | |
e9a3e671 MH |
423 | kfree(urb->setup_packet); |
424 | kfree(urb->transfer_buffer); | |
1da177e4 LT |
425 | _urb_free(_urb); |
426 | } | |
427 | ||
428 | /* Release reassembly buffers */ | |
429 | if (husb->reassembly[i]) { | |
430 | kfree_skb(husb->reassembly[i]); | |
431 | husb->reassembly[i] = NULL; | |
432 | } | |
433 | } | |
434 | } | |
435 | ||
436 | /* Close device */ | |
437 | static int hci_usb_close(struct hci_dev *hdev) | |
438 | { | |
439 | struct hci_usb *husb = (struct hci_usb *) hdev->driver_data; | |
440 | unsigned long flags; | |
441 | ||
442 | if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags)) | |
443 | return 0; | |
444 | ||
445 | BT_DBG("%s", hdev->name); | |
446 | ||
447 | /* Synchronize with completion handlers */ | |
448 | write_lock_irqsave(&husb->completion_lock, flags); | |
449 | write_unlock_irqrestore(&husb->completion_lock, flags); | |
450 | ||
451 | hci_usb_unlink_urbs(husb); | |
452 | hci_usb_flush(hdev); | |
453 | return 0; | |
454 | } | |
455 | ||
456 | static int __tx_submit(struct hci_usb *husb, struct _urb *_urb) | |
457 | { | |
458 | struct urb *urb = &_urb->urb; | |
459 | int err; | |
460 | ||
461 | BT_DBG("%s urb %p type %d", husb->hdev->name, urb, _urb->type); | |
462 | ||
463 | _urb_queue_tail(__pending_q(husb, _urb->type), _urb); | |
464 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
465 | if (err) { | |
466 | BT_ERR("%s tx submit failed urb %p type %d err %d", | |
467 | husb->hdev->name, urb, _urb->type, err); | |
468 | _urb_unlink(_urb); | |
469 | _urb_queue_tail(__completed_q(husb, _urb->type), _urb); | |
470 | } else | |
471 | atomic_inc(__pending_tx(husb, _urb->type)); | |
472 | ||
473 | return err; | |
474 | } | |
475 | ||
476 | static inline int hci_usb_send_ctrl(struct hci_usb *husb, struct sk_buff *skb) | |
477 | { | |
0d48d939 | 478 | struct _urb *_urb = __get_completed(husb, bt_cb(skb)->pkt_type); |
1da177e4 LT |
479 | struct usb_ctrlrequest *dr; |
480 | struct urb *urb; | |
481 | ||
482 | if (!_urb) { | |
483 | _urb = _urb_alloc(0, GFP_ATOMIC); | |
484 | if (!_urb) | |
485 | return -ENOMEM; | |
0d48d939 | 486 | _urb->type = bt_cb(skb)->pkt_type; |
1da177e4 LT |
487 | |
488 | dr = kmalloc(sizeof(*dr), GFP_ATOMIC); | |
489 | if (!dr) { | |
490 | _urb_free(_urb); | |
491 | return -ENOMEM; | |
492 | } | |
493 | } else | |
494 | dr = (void *) _urb->urb.setup_packet; | |
495 | ||
496 | dr->bRequestType = husb->ctrl_req; | |
497 | dr->bRequest = 0; | |
498 | dr->wIndex = 0; | |
499 | dr->wValue = 0; | |
500 | dr->wLength = __cpu_to_le16(skb->len); | |
501 | ||
502 | urb = &_urb->urb; | |
503 | usb_fill_control_urb(urb, husb->udev, usb_sndctrlpipe(husb->udev, 0), | |
504 | (void *) dr, skb->data, skb->len, hci_usb_tx_complete, husb); | |
505 | ||
506 | BT_DBG("%s skb %p len %d", husb->hdev->name, skb, skb->len); | |
507 | ||
508 | _urb->priv = skb; | |
509 | return __tx_submit(husb, _urb); | |
510 | } | |
511 | ||
512 | static inline int hci_usb_send_bulk(struct hci_usb *husb, struct sk_buff *skb) | |
513 | { | |
0d48d939 | 514 | struct _urb *_urb = __get_completed(husb, bt_cb(skb)->pkt_type); |
1da177e4 LT |
515 | struct urb *urb; |
516 | int pipe; | |
517 | ||
518 | if (!_urb) { | |
519 | _urb = _urb_alloc(0, GFP_ATOMIC); | |
520 | if (!_urb) | |
521 | return -ENOMEM; | |
0d48d939 | 522 | _urb->type = bt_cb(skb)->pkt_type; |
1da177e4 LT |
523 | } |
524 | ||
525 | urb = &_urb->urb; | |
526 | pipe = usb_sndbulkpipe(husb->udev, husb->bulk_out_ep->desc.bEndpointAddress); | |
527 | usb_fill_bulk_urb(urb, husb->udev, pipe, skb->data, skb->len, | |
528 | hci_usb_tx_complete, husb); | |
529 | urb->transfer_flags = URB_ZERO_PACKET; | |
530 | ||
531 | BT_DBG("%s skb %p len %d", husb->hdev->name, skb, skb->len); | |
532 | ||
533 | _urb->priv = skb; | |
534 | return __tx_submit(husb, _urb); | |
535 | } | |
536 | ||
537 | #ifdef CONFIG_BT_HCIUSB_SCO | |
538 | static inline int hci_usb_send_isoc(struct hci_usb *husb, struct sk_buff *skb) | |
539 | { | |
0d48d939 | 540 | struct _urb *_urb = __get_completed(husb, bt_cb(skb)->pkt_type); |
1da177e4 LT |
541 | struct urb *urb; |
542 | ||
543 | if (!_urb) { | |
544 | _urb = _urb_alloc(HCI_MAX_ISOC_FRAMES, GFP_ATOMIC); | |
545 | if (!_urb) | |
546 | return -ENOMEM; | |
0d48d939 | 547 | _urb->type = bt_cb(skb)->pkt_type; |
1da177e4 LT |
548 | } |
549 | ||
550 | BT_DBG("%s skb %p len %d", husb->hdev->name, skb, skb->len); | |
551 | ||
552 | urb = &_urb->urb; | |
553 | ||
554 | urb->context = husb; | |
555 | urb->dev = husb->udev; | |
556 | urb->pipe = usb_sndisocpipe(husb->udev, husb->isoc_out_ep->desc.bEndpointAddress); | |
557 | urb->complete = hci_usb_tx_complete; | |
558 | urb->transfer_flags = URB_ISO_ASAP; | |
559 | ||
560 | urb->interval = husb->isoc_out_ep->desc.bInterval; | |
561 | ||
562 | urb->transfer_buffer = skb->data; | |
563 | urb->transfer_buffer_length = skb->len; | |
564 | ||
565 | __fill_isoc_desc(urb, skb->len, le16_to_cpu(husb->isoc_out_ep->desc.wMaxPacketSize)); | |
566 | ||
567 | _urb->priv = skb; | |
568 | return __tx_submit(husb, _urb); | |
569 | } | |
570 | #endif | |
571 | ||
572 | static void hci_usb_tx_process(struct hci_usb *husb) | |
573 | { | |
574 | struct sk_buff_head *q; | |
575 | struct sk_buff *skb; | |
576 | ||
577 | BT_DBG("%s", husb->hdev->name); | |
578 | ||
579 | do { | |
580 | clear_bit(HCI_USB_TX_WAKEUP, &husb->state); | |
581 | ||
582 | /* Process command queue */ | |
583 | q = __transmit_q(husb, HCI_COMMAND_PKT); | |
584 | if (!atomic_read(__pending_tx(husb, HCI_COMMAND_PKT)) && | |
585 | (skb = skb_dequeue(q))) { | |
586 | if (hci_usb_send_ctrl(husb, skb) < 0) | |
587 | skb_queue_head(q, skb); | |
588 | } | |
589 | ||
590 | #ifdef CONFIG_BT_HCIUSB_SCO | |
591 | /* Process SCO queue */ | |
592 | q = __transmit_q(husb, HCI_SCODATA_PKT); | |
593 | if (atomic_read(__pending_tx(husb, HCI_SCODATA_PKT)) < HCI_MAX_ISOC_TX && | |
594 | (skb = skb_dequeue(q))) { | |
595 | if (hci_usb_send_isoc(husb, skb) < 0) | |
596 | skb_queue_head(q, skb); | |
597 | } | |
598 | #endif | |
599 | ||
600 | /* Process ACL queue */ | |
601 | q = __transmit_q(husb, HCI_ACLDATA_PKT); | |
602 | while (atomic_read(__pending_tx(husb, HCI_ACLDATA_PKT)) < HCI_MAX_BULK_TX && | |
603 | (skb = skb_dequeue(q))) { | |
604 | if (hci_usb_send_bulk(husb, skb) < 0) { | |
605 | skb_queue_head(q, skb); | |
606 | break; | |
607 | } | |
608 | } | |
609 | } while(test_bit(HCI_USB_TX_WAKEUP, &husb->state)); | |
610 | } | |
611 | ||
612 | static inline void hci_usb_tx_wakeup(struct hci_usb *husb) | |
613 | { | |
614 | /* Serialize TX queue processing to avoid data reordering */ | |
615 | if (!test_and_set_bit(HCI_USB_TX_PROCESS, &husb->state)) { | |
616 | hci_usb_tx_process(husb); | |
617 | clear_bit(HCI_USB_TX_PROCESS, &husb->state); | |
618 | } else | |
619 | set_bit(HCI_USB_TX_WAKEUP, &husb->state); | |
620 | } | |
621 | ||
622 | /* Send frames from HCI layer */ | |
623 | static int hci_usb_send_frame(struct sk_buff *skb) | |
624 | { | |
625 | struct hci_dev *hdev = (struct hci_dev *) skb->dev; | |
626 | struct hci_usb *husb; | |
627 | ||
628 | if (!hdev) { | |
629 | BT_ERR("frame for uknown device (hdev=NULL)"); | |
630 | return -ENODEV; | |
631 | } | |
632 | ||
633 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
634 | return -EBUSY; | |
635 | ||
0d48d939 | 636 | BT_DBG("%s type %d len %d", hdev->name, bt_cb(skb)->pkt_type, skb->len); |
1da177e4 LT |
637 | |
638 | husb = (struct hci_usb *) hdev->driver_data; | |
639 | ||
0d48d939 | 640 | switch (bt_cb(skb)->pkt_type) { |
1da177e4 LT |
641 | case HCI_COMMAND_PKT: |
642 | hdev->stat.cmd_tx++; | |
643 | break; | |
644 | ||
645 | case HCI_ACLDATA_PKT: | |
646 | hdev->stat.acl_tx++; | |
647 | break; | |
648 | ||
649 | #ifdef CONFIG_BT_HCIUSB_SCO | |
650 | case HCI_SCODATA_PKT: | |
651 | hdev->stat.sco_tx++; | |
652 | break; | |
653 | #endif | |
654 | ||
655 | default: | |
656 | kfree_skb(skb); | |
657 | return 0; | |
658 | } | |
659 | ||
660 | read_lock(&husb->completion_lock); | |
661 | ||
0d48d939 | 662 | skb_queue_tail(__transmit_q(husb, bt_cb(skb)->pkt_type), skb); |
1da177e4 LT |
663 | hci_usb_tx_wakeup(husb); |
664 | ||
665 | read_unlock(&husb->completion_lock); | |
666 | return 0; | |
667 | } | |
668 | ||
669 | static inline int __recv_frame(struct hci_usb *husb, int type, void *data, int count) | |
670 | { | |
671 | BT_DBG("%s type %d data %p count %d", husb->hdev->name, type, data, count); | |
672 | ||
673 | husb->hdev->stat.byte_rx += count; | |
674 | ||
675 | while (count) { | |
676 | struct sk_buff *skb = __reassembly(husb, type); | |
677 | struct { int expect; } *scb; | |
678 | int len = 0; | |
679 | ||
680 | if (!skb) { | |
681 | /* Start of the frame */ | |
682 | ||
683 | switch (type) { | |
684 | case HCI_EVENT_PKT: | |
685 | if (count >= HCI_EVENT_HDR_SIZE) { | |
686 | struct hci_event_hdr *h = data; | |
687 | len = HCI_EVENT_HDR_SIZE + h->plen; | |
688 | } else | |
689 | return -EILSEQ; | |
690 | break; | |
691 | ||
692 | case HCI_ACLDATA_PKT: | |
693 | if (count >= HCI_ACL_HDR_SIZE) { | |
694 | struct hci_acl_hdr *h = data; | |
695 | len = HCI_ACL_HDR_SIZE + __le16_to_cpu(h->dlen); | |
696 | } else | |
697 | return -EILSEQ; | |
698 | break; | |
699 | #ifdef CONFIG_BT_HCIUSB_SCO | |
700 | case HCI_SCODATA_PKT: | |
701 | if (count >= HCI_SCO_HDR_SIZE) { | |
702 | struct hci_sco_hdr *h = data; | |
703 | len = HCI_SCO_HDR_SIZE + h->dlen; | |
704 | } else | |
705 | return -EILSEQ; | |
706 | break; | |
707 | #endif | |
708 | } | |
709 | BT_DBG("new packet len %d", len); | |
710 | ||
711 | skb = bt_skb_alloc(len, GFP_ATOMIC); | |
712 | if (!skb) { | |
713 | BT_ERR("%s no memory for the packet", husb->hdev->name); | |
714 | return -ENOMEM; | |
715 | } | |
716 | skb->dev = (void *) husb->hdev; | |
0d48d939 | 717 | bt_cb(skb)->pkt_type = type; |
1da177e4 LT |
718 | |
719 | __reassembly(husb, type) = skb; | |
720 | ||
721 | scb = (void *) skb->cb; | |
722 | scb->expect = len; | |
723 | } else { | |
724 | /* Continuation */ | |
725 | scb = (void *) skb->cb; | |
726 | len = scb->expect; | |
727 | } | |
728 | ||
729 | len = min(len, count); | |
730 | ||
731 | memcpy(skb_put(skb, len), data, len); | |
732 | ||
733 | scb->expect -= len; | |
734 | if (!scb->expect) { | |
735 | /* Complete frame */ | |
736 | __reassembly(husb, type) = NULL; | |
0d48d939 | 737 | bt_cb(skb)->pkt_type = type; |
1da177e4 LT |
738 | hci_recv_frame(skb); |
739 | } | |
740 | ||
741 | count -= len; data += len; | |
742 | } | |
743 | return 0; | |
744 | } | |
745 | ||
7d12e780 | 746 | static void hci_usb_rx_complete(struct urb *urb) |
1da177e4 LT |
747 | { |
748 | struct _urb *_urb = container_of(urb, struct _urb, urb); | |
749 | struct hci_usb *husb = (void *) urb->context; | |
750 | struct hci_dev *hdev = husb->hdev; | |
751 | int err, count = urb->actual_length; | |
752 | ||
753 | BT_DBG("%s urb %p type %d status %d count %d flags %x", hdev->name, urb, | |
754 | _urb->type, urb->status, count, urb->transfer_flags); | |
755 | ||
756 | read_lock(&husb->completion_lock); | |
757 | ||
758 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
759 | goto unlock; | |
760 | ||
761 | if (urb->status || !count) | |
762 | goto resubmit; | |
763 | ||
764 | if (_urb->type == HCI_SCODATA_PKT) { | |
765 | #ifdef CONFIG_BT_HCIUSB_SCO | |
766 | int i; | |
767 | for (i=0; i < urb->number_of_packets; i++) { | |
768 | BT_DBG("desc %d status %d offset %d len %d", i, | |
769 | urb->iso_frame_desc[i].status, | |
770 | urb->iso_frame_desc[i].offset, | |
771 | urb->iso_frame_desc[i].actual_length); | |
772 | ||
773 | if (!urb->iso_frame_desc[i].status) | |
774 | __recv_frame(husb, _urb->type, | |
775 | urb->transfer_buffer + urb->iso_frame_desc[i].offset, | |
776 | urb->iso_frame_desc[i].actual_length); | |
777 | } | |
778 | #else | |
779 | ; | |
780 | #endif | |
781 | } else { | |
782 | err = __recv_frame(husb, _urb->type, urb->transfer_buffer, count); | |
783 | if (err < 0) { | |
784 | BT_ERR("%s corrupted packet: type %d count %d", | |
785 | husb->hdev->name, _urb->type, count); | |
786 | hdev->stat.err_rx++; | |
787 | } | |
788 | } | |
789 | ||
790 | resubmit: | |
791 | urb->dev = husb->udev; | |
792 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
793 | BT_DBG("%s urb %p type %d resubmit status %d", hdev->name, urb, | |
794 | _urb->type, err); | |
795 | ||
796 | unlock: | |
797 | read_unlock(&husb->completion_lock); | |
798 | } | |
799 | ||
7d12e780 | 800 | static void hci_usb_tx_complete(struct urb *urb) |
1da177e4 LT |
801 | { |
802 | struct _urb *_urb = container_of(urb, struct _urb, urb); | |
803 | struct hci_usb *husb = (void *) urb->context; | |
804 | struct hci_dev *hdev = husb->hdev; | |
805 | ||
806 | BT_DBG("%s urb %p status %d flags %x", hdev->name, urb, | |
807 | urb->status, urb->transfer_flags); | |
808 | ||
809 | atomic_dec(__pending_tx(husb, _urb->type)); | |
810 | ||
811 | urb->transfer_buffer = NULL; | |
812 | kfree_skb((struct sk_buff *) _urb->priv); | |
813 | ||
814 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
815 | return; | |
816 | ||
817 | if (!urb->status) | |
818 | hdev->stat.byte_tx += urb->transfer_buffer_length; | |
819 | else | |
820 | hdev->stat.err_tx++; | |
821 | ||
822 | read_lock(&husb->completion_lock); | |
823 | ||
824 | _urb_unlink(_urb); | |
825 | _urb_queue_tail(__completed_q(husb, _urb->type), _urb); | |
826 | ||
827 | hci_usb_tx_wakeup(husb); | |
828 | ||
829 | read_unlock(&husb->completion_lock); | |
830 | } | |
831 | ||
832 | static void hci_usb_destruct(struct hci_dev *hdev) | |
833 | { | |
834 | struct hci_usb *husb = (struct hci_usb *) hdev->driver_data; | |
835 | ||
836 | BT_DBG("%s", hdev->name); | |
837 | ||
838 | kfree(husb); | |
839 | } | |
840 | ||
841 | static void hci_usb_notify(struct hci_dev *hdev, unsigned int evt) | |
842 | { | |
843 | BT_DBG("%s evt %d", hdev->name, evt); | |
844 | } | |
845 | ||
846 | static int hci_usb_probe(struct usb_interface *intf, const struct usb_device_id *id) | |
847 | { | |
848 | struct usb_device *udev = interface_to_usbdev(intf); | |
849 | struct usb_host_endpoint *bulk_out_ep = NULL; | |
850 | struct usb_host_endpoint *bulk_in_ep = NULL; | |
851 | struct usb_host_endpoint *intr_in_ep = NULL; | |
852 | struct usb_host_endpoint *ep; | |
853 | struct usb_host_interface *uif; | |
854 | struct usb_interface *isoc_iface; | |
855 | struct hci_usb *husb; | |
856 | struct hci_dev *hdev; | |
857 | int i, e, size, isoc_ifnum, isoc_alts; | |
858 | ||
859 | BT_DBG("udev %p intf %p", udev, intf); | |
860 | ||
861 | if (!id->driver_info) { | |
862 | const struct usb_device_id *match; | |
863 | match = usb_match_id(intf, blacklist_ids); | |
864 | if (match) | |
865 | id = match; | |
866 | } | |
867 | ||
868 | if (ignore || id->driver_info & HCI_IGNORE) | |
869 | return -ENODEV; | |
870 | ||
7ef934b3 MH |
871 | if (ignore_dga && id->driver_info & HCI_DIGIANSWER) |
872 | return -ENODEV; | |
873 | ||
0915e886 MH |
874 | if (ignore_csr && id->driver_info & HCI_CSR) |
875 | return -ENODEV; | |
876 | ||
877 | if (ignore_sniffer && id->driver_info & HCI_SNIFFER) | |
878 | return -ENODEV; | |
879 | ||
1da177e4 LT |
880 | if (intf->cur_altsetting->desc.bInterfaceNumber > 0) |
881 | return -ENODEV; | |
882 | ||
883 | /* Find endpoints that we need */ | |
884 | uif = intf->cur_altsetting; | |
885 | for (e = 0; e < uif->desc.bNumEndpoints; e++) { | |
886 | ep = &uif->endpoint[e]; | |
887 | ||
888 | switch (ep->desc.bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) { | |
889 | case USB_ENDPOINT_XFER_INT: | |
890 | if (ep->desc.bEndpointAddress & USB_DIR_IN) | |
891 | intr_in_ep = ep; | |
892 | break; | |
893 | ||
894 | case USB_ENDPOINT_XFER_BULK: | |
895 | if (ep->desc.bEndpointAddress & USB_DIR_IN) | |
896 | bulk_in_ep = ep; | |
897 | else | |
898 | bulk_out_ep = ep; | |
899 | break; | |
900 | } | |
901 | } | |
902 | ||
903 | if (!bulk_in_ep || !bulk_out_ep || !intr_in_ep) { | |
904 | BT_DBG("Bulk endpoints not found"); | |
905 | goto done; | |
906 | } | |
907 | ||
089b1dbb | 908 | if (!(husb = kzalloc(sizeof(struct hci_usb), GFP_KERNEL))) { |
1da177e4 LT |
909 | BT_ERR("Can't allocate: control structure"); |
910 | goto done; | |
911 | } | |
912 | ||
1da177e4 LT |
913 | husb->udev = udev; |
914 | husb->bulk_out_ep = bulk_out_ep; | |
915 | husb->bulk_in_ep = bulk_in_ep; | |
916 | husb->intr_in_ep = intr_in_ep; | |
917 | ||
918 | if (id->driver_info & HCI_DIGIANSWER) | |
919 | husb->ctrl_req = USB_TYPE_VENDOR; | |
920 | else | |
921 | husb->ctrl_req = USB_TYPE_CLASS; | |
922 | ||
923 | /* Find isochronous endpoints that we can use */ | |
924 | size = 0; | |
925 | isoc_iface = NULL; | |
926 | isoc_alts = 0; | |
927 | isoc_ifnum = 1; | |
928 | ||
929 | #ifdef CONFIG_BT_HCIUSB_SCO | |
930 | if (isoc && !(id->driver_info & (HCI_BROKEN_ISOC | HCI_SNIFFER))) | |
931 | isoc_iface = usb_ifnum_to_if(udev, isoc_ifnum); | |
932 | ||
933 | if (isoc_iface) { | |
934 | int a; | |
935 | struct usb_host_endpoint *isoc_out_ep = NULL; | |
936 | struct usb_host_endpoint *isoc_in_ep = NULL; | |
937 | ||
938 | for (a = 0; a < isoc_iface->num_altsetting; a++) { | |
939 | uif = &isoc_iface->altsetting[a]; | |
940 | for (e = 0; e < uif->desc.bNumEndpoints; e++) { | |
941 | ep = &uif->endpoint[e]; | |
942 | ||
943 | switch (ep->desc.bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) { | |
944 | case USB_ENDPOINT_XFER_ISOC: | |
945 | if (le16_to_cpu(ep->desc.wMaxPacketSize) < size || | |
946 | uif->desc.bAlternateSetting != isoc) | |
947 | break; | |
948 | size = le16_to_cpu(ep->desc.wMaxPacketSize); | |
949 | ||
950 | isoc_alts = uif->desc.bAlternateSetting; | |
951 | ||
952 | if (ep->desc.bEndpointAddress & USB_DIR_IN) | |
953 | isoc_in_ep = ep; | |
954 | else | |
955 | isoc_out_ep = ep; | |
956 | break; | |
957 | } | |
958 | } | |
959 | } | |
960 | ||
961 | if (!isoc_in_ep || !isoc_out_ep) | |
962 | BT_DBG("Isoc endpoints not found"); | |
963 | else { | |
964 | BT_DBG("isoc ifnum %d alts %d", isoc_ifnum, isoc_alts); | |
965 | if (usb_driver_claim_interface(&hci_usb_driver, isoc_iface, husb) != 0) | |
966 | BT_ERR("Can't claim isoc interface"); | |
967 | else if (usb_set_interface(udev, isoc_ifnum, isoc_alts)) { | |
968 | BT_ERR("Can't set isoc interface settings"); | |
969 | husb->isoc_iface = isoc_iface; | |
970 | usb_driver_release_interface(&hci_usb_driver, isoc_iface); | |
971 | husb->isoc_iface = NULL; | |
972 | } else { | |
973 | husb->isoc_iface = isoc_iface; | |
974 | husb->isoc_in_ep = isoc_in_ep; | |
975 | husb->isoc_out_ep = isoc_out_ep; | |
976 | } | |
977 | } | |
978 | } | |
979 | #endif | |
980 | ||
981 | rwlock_init(&husb->completion_lock); | |
982 | ||
983 | for (i = 0; i < 4; i++) { | |
984 | skb_queue_head_init(&husb->transmit_q[i]); | |
985 | _urb_queue_init(&husb->pending_q[i]); | |
986 | _urb_queue_init(&husb->completed_q[i]); | |
987 | } | |
988 | ||
989 | /* Initialize and register HCI device */ | |
990 | hdev = hci_alloc_dev(); | |
991 | if (!hdev) { | |
992 | BT_ERR("Can't allocate HCI device"); | |
993 | goto probe_error; | |
994 | } | |
995 | ||
996 | husb->hdev = hdev; | |
997 | ||
998 | hdev->type = HCI_USB; | |
999 | hdev->driver_data = husb; | |
1000 | SET_HCIDEV_DEV(hdev, &intf->dev); | |
1001 | ||
1002 | hdev->open = hci_usb_open; | |
1003 | hdev->close = hci_usb_close; | |
1004 | hdev->flush = hci_usb_flush; | |
1005 | hdev->send = hci_usb_send_frame; | |
1006 | hdev->destruct = hci_usb_destruct; | |
1007 | hdev->notify = hci_usb_notify; | |
1008 | ||
1009 | hdev->owner = THIS_MODULE; | |
1010 | ||
1011 | if (reset || id->driver_info & HCI_RESET) | |
1012 | set_bit(HCI_QUIRK_RESET_ON_INIT, &hdev->quirks); | |
1013 | ||
520ca78a MH |
1014 | if (force_scofix || id->driver_info & HCI_WRONG_SCO_MTU) { |
1015 | if (!disable_scofix) | |
1016 | set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks); | |
1017 | } | |
da1f5198 | 1018 | |
1da177e4 LT |
1019 | if (id->driver_info & HCI_SNIFFER) { |
1020 | if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997) | |
1021 | set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); | |
1022 | } | |
1023 | ||
1024 | if (id->driver_info & HCI_BCM92035) { | |
1025 | unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 }; | |
1026 | struct sk_buff *skb; | |
1027 | ||
1028 | skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL); | |
1029 | if (skb) { | |
1030 | memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd)); | |
1031 | skb_queue_tail(&hdev->driver_init, skb); | |
1032 | } | |
1033 | } | |
1034 | ||
1035 | if (hci_register_dev(hdev) < 0) { | |
1036 | BT_ERR("Can't register HCI device"); | |
1037 | hci_free_dev(hdev); | |
1038 | goto probe_error; | |
1039 | } | |
1040 | ||
1041 | usb_set_intfdata(intf, husb); | |
1042 | return 0; | |
1043 | ||
1044 | probe_error: | |
1045 | if (husb->isoc_iface) | |
1046 | usb_driver_release_interface(&hci_usb_driver, husb->isoc_iface); | |
1047 | kfree(husb); | |
1048 | ||
1049 | done: | |
1050 | return -EIO; | |
1051 | } | |
1052 | ||
1053 | static void hci_usb_disconnect(struct usb_interface *intf) | |
1054 | { | |
1055 | struct hci_usb *husb = usb_get_intfdata(intf); | |
1056 | struct hci_dev *hdev; | |
1057 | ||
1058 | if (!husb || intf == husb->isoc_iface) | |
1059 | return; | |
1060 | ||
1061 | usb_set_intfdata(intf, NULL); | |
1062 | hdev = husb->hdev; | |
1063 | ||
1064 | BT_DBG("%s", hdev->name); | |
1065 | ||
1066 | hci_usb_close(hdev); | |
1067 | ||
1068 | if (husb->isoc_iface) | |
1069 | usb_driver_release_interface(&hci_usb_driver, husb->isoc_iface); | |
1070 | ||
1071 | if (hci_unregister_dev(hdev) < 0) | |
1072 | BT_ERR("Can't unregister HCI device %s", hdev->name); | |
1073 | ||
1074 | hci_free_dev(hdev); | |
1075 | } | |
1076 | ||
dcdcf63e MH |
1077 | static int hci_usb_suspend(struct usb_interface *intf, pm_message_t message) |
1078 | { | |
1079 | struct hci_usb *husb = usb_get_intfdata(intf); | |
1080 | struct list_head killed; | |
1081 | unsigned long flags; | |
1082 | int i; | |
1083 | ||
1084 | if (!husb || intf == husb->isoc_iface) | |
1085 | return 0; | |
1086 | ||
1087 | hci_suspend_dev(husb->hdev); | |
1088 | ||
1089 | INIT_LIST_HEAD(&killed); | |
1090 | ||
1091 | for (i = 0; i < 4; i++) { | |
1092 | struct _urb_queue *q = &husb->pending_q[i]; | |
1093 | struct _urb *_urb, *_tmp; | |
1094 | ||
1095 | while ((_urb = _urb_dequeue(q))) { | |
1096 | /* reset queue since _urb_dequeue sets it to NULL */ | |
1097 | _urb->queue = q; | |
1098 | usb_kill_urb(&_urb->urb); | |
1099 | list_add(&_urb->list, &killed); | |
1100 | } | |
1101 | ||
1102 | spin_lock_irqsave(&q->lock, flags); | |
1103 | ||
1104 | list_for_each_entry_safe(_urb, _tmp, &killed, list) { | |
1105 | list_move_tail(&_urb->list, &q->head); | |
1106 | } | |
1107 | ||
1108 | spin_unlock_irqrestore(&q->lock, flags); | |
1109 | } | |
1110 | ||
1111 | return 0; | |
1112 | } | |
1113 | ||
1114 | static int hci_usb_resume(struct usb_interface *intf) | |
1115 | { | |
1116 | struct hci_usb *husb = usb_get_intfdata(intf); | |
1117 | unsigned long flags; | |
1118 | int i, err = 0; | |
1119 | ||
1120 | if (!husb || intf == husb->isoc_iface) | |
1121 | return 0; | |
1122 | ||
1123 | for (i = 0; i < 4; i++) { | |
1124 | struct _urb_queue *q = &husb->pending_q[i]; | |
1125 | struct _urb *_urb; | |
1126 | ||
1127 | spin_lock_irqsave(&q->lock, flags); | |
1128 | ||
1129 | list_for_each_entry(_urb, &q->head, list) { | |
1130 | err = usb_submit_urb(&_urb->urb, GFP_ATOMIC); | |
1131 | if (err) | |
1132 | break; | |
1133 | } | |
1134 | ||
1135 | spin_unlock_irqrestore(&q->lock, flags); | |
1136 | ||
1137 | if (err) | |
1138 | return -EIO; | |
1139 | } | |
1140 | ||
1141 | hci_resume_dev(husb->hdev); | |
1142 | ||
1143 | return 0; | |
1144 | } | |
1145 | ||
1da177e4 | 1146 | static struct usb_driver hci_usb_driver = { |
1da177e4 LT |
1147 | .name = "hci_usb", |
1148 | .probe = hci_usb_probe, | |
1149 | .disconnect = hci_usb_disconnect, | |
dcdcf63e MH |
1150 | .suspend = hci_usb_suspend, |
1151 | .resume = hci_usb_resume, | |
1da177e4 LT |
1152 | .id_table = bluetooth_ids, |
1153 | }; | |
1154 | ||
1155 | static int __init hci_usb_init(void) | |
1156 | { | |
1157 | int err; | |
1158 | ||
1159 | BT_INFO("HCI USB driver ver %s", VERSION); | |
1160 | ||
1161 | if ((err = usb_register(&hci_usb_driver)) < 0) | |
1162 | BT_ERR("Failed to register HCI USB driver"); | |
1163 | ||
1164 | return err; | |
1165 | } | |
1166 | ||
1167 | static void __exit hci_usb_exit(void) | |
1168 | { | |
1169 | usb_deregister(&hci_usb_driver); | |
1170 | } | |
1171 | ||
1172 | module_init(hci_usb_init); | |
1173 | module_exit(hci_usb_exit); | |
1174 | ||
1175 | module_param(ignore, bool, 0644); | |
1176 | MODULE_PARM_DESC(ignore, "Ignore devices from the matching table"); | |
1177 | ||
7ef934b3 MH |
1178 | module_param(ignore_dga, bool, 0644); |
1179 | MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001"); | |
1180 | ||
0915e886 MH |
1181 | module_param(ignore_csr, bool, 0644); |
1182 | MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001"); | |
1183 | ||
1184 | module_param(ignore_sniffer, bool, 0644); | |
1185 | MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002"); | |
1186 | ||
520ca78a MH |
1187 | module_param(disable_scofix, bool, 0644); |
1188 | MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size"); | |
1189 | ||
1190 | module_param(force_scofix, bool, 0644); | |
1191 | MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size"); | |
1192 | ||
1da177e4 LT |
1193 | module_param(reset, bool, 0644); |
1194 | MODULE_PARM_DESC(reset, "Send HCI reset command on initialization"); | |
1195 | ||
1196 | #ifdef CONFIG_BT_HCIUSB_SCO | |
1197 | module_param(isoc, int, 0644); | |
1198 | MODULE_PARM_DESC(isoc, "Set isochronous transfers for SCO over HCI support"); | |
1199 | #endif | |
1200 | ||
1201 | MODULE_AUTHOR("Maxim Krasnyansky <maxk@qualcomm.com>, Marcel Holtmann <marcel@holtmann.org>"); | |
1202 | MODULE_DESCRIPTION("Bluetooth HCI USB driver ver " VERSION); | |
1203 | MODULE_VERSION(VERSION); | |
1204 | MODULE_LICENSE("GPL"); |