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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 | ||
a8827113 PM |
65 | static int ignore_dga; |
66 | static int ignore_csr; | |
67 | static int ignore_sniffer; | |
68 | static int disable_scofix; | |
69 | static int force_scofix; | |
70 | static int reset; | |
1da177e4 LT |
71 | |
72 | #ifdef CONFIG_BT_HCIUSB_SCO | |
73 | static int isoc = 2; | |
74 | #endif | |
75 | ||
943d56b0 | 76 | #define VERSION "2.10" |
1da177e4 LT |
77 | |
78 | static struct usb_driver hci_usb_driver; | |
79 | ||
80 | static struct usb_device_id bluetooth_ids[] = { | |
81 | /* Generic Bluetooth USB device */ | |
82 | { USB_DEVICE_INFO(HCI_DEV_CLASS, HCI_DEV_SUBCLASS, HCI_DEV_PROTOCOL) }, | |
83 | ||
84 | /* AVM BlueFRITZ! USB v2.0 */ | |
85 | { USB_DEVICE(0x057c, 0x3800) }, | |
86 | ||
87 | /* Bluetooth Ultraport Module from IBM */ | |
88 | { USB_DEVICE(0x04bf, 0x030a) }, | |
89 | ||
90 | /* ALPS Modules with non-standard id */ | |
91 | { USB_DEVICE(0x044e, 0x3001) }, | |
92 | { USB_DEVICE(0x044e, 0x3002) }, | |
93 | ||
94 | /* Ericsson with non-standard id */ | |
95 | { USB_DEVICE(0x0bdb, 0x1002) }, | |
96 | ||
62ae1591 MH |
97 | /* Canyon CN-BTU1 with HID interfaces */ |
98 | { USB_DEVICE(0x0c10, 0x0000), .driver_info = HCI_RESET }, | |
99 | ||
1da177e4 LT |
100 | { } /* Terminating entry */ |
101 | }; | |
102 | ||
103 | MODULE_DEVICE_TABLE (usb, bluetooth_ids); | |
104 | ||
105 | static struct usb_device_id blacklist_ids[] = { | |
0915e886 MH |
106 | /* CSR BlueCore devices */ |
107 | { USB_DEVICE(0x0a12, 0x0001), .driver_info = HCI_CSR }, | |
108 | ||
1da177e4 LT |
109 | /* Broadcom BCM2033 without firmware */ |
110 | { USB_DEVICE(0x0a5c, 0x2033), .driver_info = HCI_IGNORE }, | |
111 | ||
112 | /* Broadcom BCM2035 */ | |
6e46c8cb | 113 | { USB_DEVICE(0x0a5c, 0x2035), .driver_info = HCI_RESET | HCI_WRONG_SCO_MTU }, |
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 | ||
7bb078cb | 117 | /* Broadcom BCM2045 */ |
60d5bcec | 118 | { USB_DEVICE(0x0a5c, 0x2039), .driver_info = HCI_RESET | HCI_WRONG_SCO_MTU }, |
fd184ab4 | 119 | { USB_DEVICE(0x0a5c, 0x2101), .driver_info = HCI_RESET | HCI_WRONG_SCO_MTU }, |
7bb078cb | 120 | |
520ca78a | 121 | /* IBM/Lenovo ThinkPad with Broadcom chip */ |
fd184ab4 MH |
122 | { USB_DEVICE(0x0a5c, 0x201e), .driver_info = HCI_RESET | HCI_WRONG_SCO_MTU }, |
123 | { USB_DEVICE(0x0a5c, 0x2110), .driver_info = HCI_RESET | HCI_WRONG_SCO_MTU }, | |
520ca78a | 124 | |
c51bd3d3 MH |
125 | /* Targus ACB10US */ |
126 | { USB_DEVICE(0x0a5c, 0x2100), .driver_info = HCI_RESET }, | |
127 | ||
0eab934f MH |
128 | /* ANYCOM Bluetooth USB-200 and USB-250 */ |
129 | { USB_DEVICE(0x0a5c, 0x2111), .driver_info = HCI_RESET }, | |
130 | ||
da942704 | 131 | /* HP laptop with Broadcom chip */ |
fd184ab4 | 132 | { USB_DEVICE(0x03f0, 0x171d), .driver_info = HCI_RESET | HCI_WRONG_SCO_MTU }, |
da942704 | 133 | |
86112ffd | 134 | /* Dell laptop with Broadcom chip */ |
fd184ab4 | 135 | { USB_DEVICE(0x413c, 0x8126), .driver_info = HCI_RESET | HCI_WRONG_SCO_MTU }, |
5aa10cad MF |
136 | /* Dell Wireless 370 */ |
137 | { USB_DEVICE(0x413c, 0x8156), .driver_info = HCI_RESET | HCI_WRONG_SCO_MTU }, | |
138 | /* Dell Wireless 410 */ | |
139 | { USB_DEVICE(0x413c, 0x8152), .driver_info = HCI_RESET | HCI_WRONG_SCO_MTU }, | |
140 | ||
141 | /* Broadcom 2046 */ | |
142 | { USB_DEVICE(0x0a5c, 0x2151), .driver_info = HCI_RESET }, | |
86112ffd | 143 | |
1da177e4 LT |
144 | /* Microsoft Wireless Transceiver for Bluetooth 2.0 */ |
145 | { USB_DEVICE(0x045e, 0x009c), .driver_info = HCI_RESET }, | |
146 | ||
cad0f627 MH |
147 | /* Kensington Bluetooth USB adapter */ |
148 | { USB_DEVICE(0x047d, 0x105d), .driver_info = HCI_RESET }, | |
fd184ab4 | 149 | { USB_DEVICE(0x047d, 0x105e), .driver_info = HCI_RESET | HCI_WRONG_SCO_MTU }, |
cad0f627 | 150 | |
1da177e4 LT |
151 | /* ISSC Bluetooth Adapter v3.1 */ |
152 | { USB_DEVICE(0x1131, 0x1001), .driver_info = HCI_RESET }, | |
153 | ||
8e4f7230 | 154 | /* RTX Telecom based adapters with buggy SCO support */ |
1da177e4 | 155 | { USB_DEVICE(0x0400, 0x0807), .driver_info = HCI_BROKEN_ISOC }, |
8e4f7230 | 156 | { USB_DEVICE(0x0400, 0x080a), .driver_info = HCI_BROKEN_ISOC }, |
1da177e4 | 157 | |
09a76031 S |
158 | /* CONWISE Technology based adapters with buggy SCO support */ |
159 | { USB_DEVICE(0x0e5e, 0x6622), .driver_info = HCI_BROKEN_ISOC }, | |
160 | ||
ea9727f6 | 161 | /* Belkin F8T012 and F8T013 devices */ |
fd184ab4 MH |
162 | { USB_DEVICE(0x050d, 0x0012), .driver_info = HCI_RESET | HCI_WRONG_SCO_MTU }, |
163 | { USB_DEVICE(0x050d, 0x0013), .driver_info = HCI_RESET | HCI_WRONG_SCO_MTU }, | |
da1f5198 | 164 | |
1da177e4 LT |
165 | /* Digianswer devices */ |
166 | { USB_DEVICE(0x08fd, 0x0001), .driver_info = HCI_DIGIANSWER }, | |
167 | { USB_DEVICE(0x08fd, 0x0002), .driver_info = HCI_IGNORE }, | |
168 | ||
169 | /* CSR BlueCore Bluetooth Sniffer */ | |
170 | { USB_DEVICE(0x0a12, 0x0002), .driver_info = HCI_SNIFFER }, | |
171 | ||
2b86ad21 MH |
172 | /* Frontline ComProbe Bluetooth Sniffer */ |
173 | { USB_DEVICE(0x16d3, 0x0002), .driver_info = HCI_SNIFFER }, | |
174 | ||
1da177e4 LT |
175 | { } /* Terminating entry */ |
176 | }; | |
177 | ||
dd0fc66f | 178 | static struct _urb *_urb_alloc(int isoc, gfp_t gfp) |
1da177e4 LT |
179 | { |
180 | struct _urb *_urb = kmalloc(sizeof(struct _urb) + | |
181 | sizeof(struct usb_iso_packet_descriptor) * isoc, gfp); | |
182 | if (_urb) { | |
183 | memset(_urb, 0, sizeof(*_urb)); | |
184 | usb_init_urb(&_urb->urb); | |
185 | } | |
186 | return _urb; | |
187 | } | |
188 | ||
189 | static struct _urb *_urb_dequeue(struct _urb_queue *q) | |
190 | { | |
191 | struct _urb *_urb = NULL; | |
192 | unsigned long flags; | |
193 | spin_lock_irqsave(&q->lock, flags); | |
194 | { | |
195 | struct list_head *head = &q->head; | |
196 | struct list_head *next = head->next; | |
197 | if (next != head) { | |
198 | _urb = list_entry(next, struct _urb, list); | |
199 | list_del(next); _urb->queue = NULL; | |
200 | } | |
201 | } | |
202 | spin_unlock_irqrestore(&q->lock, flags); | |
203 | return _urb; | |
204 | } | |
205 | ||
7d12e780 DH |
206 | static void hci_usb_rx_complete(struct urb *urb); |
207 | static void hci_usb_tx_complete(struct urb *urb); | |
1da177e4 LT |
208 | |
209 | #define __pending_tx(husb, type) (&husb->pending_tx[type-1]) | |
210 | #define __pending_q(husb, type) (&husb->pending_q[type-1]) | |
211 | #define __completed_q(husb, type) (&husb->completed_q[type-1]) | |
212 | #define __transmit_q(husb, type) (&husb->transmit_q[type-1]) | |
1da177e4 LT |
213 | |
214 | static inline struct _urb *__get_completed(struct hci_usb *husb, int type) | |
215 | { | |
216 | return _urb_dequeue(__completed_q(husb, type)); | |
217 | } | |
218 | ||
219 | #ifdef CONFIG_BT_HCIUSB_SCO | |
220 | static void __fill_isoc_desc(struct urb *urb, int len, int mtu) | |
221 | { | |
222 | int offset = 0, i; | |
223 | ||
224 | BT_DBG("len %d mtu %d", len, mtu); | |
225 | ||
226 | for (i=0; i < HCI_MAX_ISOC_FRAMES && len >= mtu; i++, offset += mtu, len -= mtu) { | |
227 | urb->iso_frame_desc[i].offset = offset; | |
228 | urb->iso_frame_desc[i].length = mtu; | |
229 | BT_DBG("desc %d offset %d len %d", i, offset, mtu); | |
230 | } | |
231 | if (len && i < HCI_MAX_ISOC_FRAMES) { | |
232 | urb->iso_frame_desc[i].offset = offset; | |
233 | urb->iso_frame_desc[i].length = len; | |
234 | BT_DBG("desc %d offset %d len %d", i, offset, len); | |
235 | i++; | |
236 | } | |
237 | urb->number_of_packets = i; | |
238 | } | |
239 | #endif | |
240 | ||
241 | static int hci_usb_intr_rx_submit(struct hci_usb *husb) | |
242 | { | |
243 | struct _urb *_urb; | |
244 | struct urb *urb; | |
245 | int err, pipe, interval, size; | |
246 | void *buf; | |
247 | ||
248 | BT_DBG("%s", husb->hdev->name); | |
249 | ||
250 | size = le16_to_cpu(husb->intr_in_ep->desc.wMaxPacketSize); | |
251 | ||
252 | buf = kmalloc(size, GFP_ATOMIC); | |
253 | if (!buf) | |
254 | return -ENOMEM; | |
255 | ||
256 | _urb = _urb_alloc(0, GFP_ATOMIC); | |
257 | if (!_urb) { | |
258 | kfree(buf); | |
259 | return -ENOMEM; | |
260 | } | |
261 | _urb->type = HCI_EVENT_PKT; | |
262 | _urb_queue_tail(__pending_q(husb, _urb->type), _urb); | |
263 | ||
264 | urb = &_urb->urb; | |
265 | pipe = usb_rcvintpipe(husb->udev, husb->intr_in_ep->desc.bEndpointAddress); | |
266 | interval = husb->intr_in_ep->desc.bInterval; | |
267 | usb_fill_int_urb(urb, husb->udev, pipe, buf, size, hci_usb_rx_complete, husb, interval); | |
268 | ||
269 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
270 | if (err) { | |
271 | BT_ERR("%s intr rx submit failed urb %p err %d", | |
272 | husb->hdev->name, urb, err); | |
273 | _urb_unlink(_urb); | |
d129f188 | 274 | kfree(_urb); |
1da177e4 LT |
275 | kfree(buf); |
276 | } | |
277 | return err; | |
278 | } | |
279 | ||
280 | static int hci_usb_bulk_rx_submit(struct hci_usb *husb) | |
281 | { | |
282 | struct _urb *_urb; | |
283 | struct urb *urb; | |
284 | int err, pipe, size = HCI_MAX_FRAME_SIZE; | |
285 | void *buf; | |
286 | ||
287 | buf = kmalloc(size, GFP_ATOMIC); | |
288 | if (!buf) | |
289 | return -ENOMEM; | |
290 | ||
291 | _urb = _urb_alloc(0, GFP_ATOMIC); | |
292 | if (!_urb) { | |
293 | kfree(buf); | |
294 | return -ENOMEM; | |
295 | } | |
296 | _urb->type = HCI_ACLDATA_PKT; | |
297 | _urb_queue_tail(__pending_q(husb, _urb->type), _urb); | |
298 | ||
299 | urb = &_urb->urb; | |
300 | pipe = usb_rcvbulkpipe(husb->udev, husb->bulk_in_ep->desc.bEndpointAddress); | |
301 | usb_fill_bulk_urb(urb, husb->udev, pipe, buf, size, hci_usb_rx_complete, husb); | |
302 | urb->transfer_flags = 0; | |
303 | ||
304 | BT_DBG("%s urb %p", husb->hdev->name, urb); | |
305 | ||
306 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
307 | if (err) { | |
308 | BT_ERR("%s bulk rx submit failed urb %p err %d", | |
309 | husb->hdev->name, urb, err); | |
310 | _urb_unlink(_urb); | |
d129f188 | 311 | kfree(_urb); |
1da177e4 LT |
312 | kfree(buf); |
313 | } | |
314 | return err; | |
315 | } | |
316 | ||
317 | #ifdef CONFIG_BT_HCIUSB_SCO | |
318 | static int hci_usb_isoc_rx_submit(struct hci_usb *husb) | |
319 | { | |
320 | struct _urb *_urb; | |
321 | struct urb *urb; | |
322 | int err, mtu, size; | |
323 | void *buf; | |
324 | ||
325 | mtu = le16_to_cpu(husb->isoc_in_ep->desc.wMaxPacketSize); | |
326 | size = mtu * HCI_MAX_ISOC_FRAMES; | |
327 | ||
328 | buf = kmalloc(size, GFP_ATOMIC); | |
329 | if (!buf) | |
330 | return -ENOMEM; | |
331 | ||
332 | _urb = _urb_alloc(HCI_MAX_ISOC_FRAMES, GFP_ATOMIC); | |
333 | if (!_urb) { | |
334 | kfree(buf); | |
335 | return -ENOMEM; | |
336 | } | |
337 | _urb->type = HCI_SCODATA_PKT; | |
338 | _urb_queue_tail(__pending_q(husb, _urb->type), _urb); | |
339 | ||
340 | urb = &_urb->urb; | |
341 | ||
342 | urb->context = husb; | |
343 | urb->dev = husb->udev; | |
344 | urb->pipe = usb_rcvisocpipe(husb->udev, husb->isoc_in_ep->desc.bEndpointAddress); | |
345 | urb->complete = hci_usb_rx_complete; | |
346 | ||
347 | urb->interval = husb->isoc_in_ep->desc.bInterval; | |
348 | ||
349 | urb->transfer_buffer_length = size; | |
350 | urb->transfer_buffer = buf; | |
351 | urb->transfer_flags = URB_ISO_ASAP; | |
352 | ||
353 | __fill_isoc_desc(urb, size, mtu); | |
354 | ||
355 | BT_DBG("%s urb %p", husb->hdev->name, urb); | |
356 | ||
357 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
358 | if (err) { | |
359 | BT_ERR("%s isoc rx submit failed urb %p err %d", | |
360 | husb->hdev->name, urb, err); | |
361 | _urb_unlink(_urb); | |
d129f188 | 362 | kfree(_urb); |
1da177e4 LT |
363 | kfree(buf); |
364 | } | |
365 | return err; | |
366 | } | |
367 | #endif | |
368 | ||
369 | /* Initialize device */ | |
370 | static int hci_usb_open(struct hci_dev *hdev) | |
371 | { | |
372 | struct hci_usb *husb = (struct hci_usb *) hdev->driver_data; | |
373 | int i, err; | |
374 | unsigned long flags; | |
375 | ||
376 | BT_DBG("%s", hdev->name); | |
377 | ||
378 | if (test_and_set_bit(HCI_RUNNING, &hdev->flags)) | |
379 | return 0; | |
380 | ||
381 | write_lock_irqsave(&husb->completion_lock, flags); | |
382 | ||
383 | err = hci_usb_intr_rx_submit(husb); | |
384 | if (!err) { | |
385 | for (i = 0; i < HCI_MAX_BULK_RX; i++) | |
386 | hci_usb_bulk_rx_submit(husb); | |
387 | ||
388 | #ifdef CONFIG_BT_HCIUSB_SCO | |
389 | if (husb->isoc_iface) | |
390 | for (i = 0; i < HCI_MAX_ISOC_RX; i++) | |
391 | hci_usb_isoc_rx_submit(husb); | |
392 | #endif | |
393 | } else { | |
394 | clear_bit(HCI_RUNNING, &hdev->flags); | |
395 | } | |
396 | ||
397 | write_unlock_irqrestore(&husb->completion_lock, flags); | |
398 | return err; | |
399 | } | |
400 | ||
401 | /* Reset device */ | |
402 | static int hci_usb_flush(struct hci_dev *hdev) | |
403 | { | |
404 | struct hci_usb *husb = (struct hci_usb *) hdev->driver_data; | |
405 | int i; | |
406 | ||
407 | BT_DBG("%s", hdev->name); | |
408 | ||
409 | for (i = 0; i < 4; i++) | |
410 | skb_queue_purge(&husb->transmit_q[i]); | |
411 | return 0; | |
412 | } | |
413 | ||
414 | static void hci_usb_unlink_urbs(struct hci_usb *husb) | |
415 | { | |
416 | int i; | |
417 | ||
418 | BT_DBG("%s", husb->hdev->name); | |
419 | ||
420 | for (i = 0; i < 4; i++) { | |
421 | struct _urb *_urb; | |
422 | struct urb *urb; | |
423 | ||
424 | /* Kill pending requests */ | |
425 | while ((_urb = _urb_dequeue(&husb->pending_q[i]))) { | |
426 | urb = &_urb->urb; | |
427 | BT_DBG("%s unlinking _urb %p type %d urb %p", | |
428 | husb->hdev->name, _urb, _urb->type, urb); | |
429 | usb_kill_urb(urb); | |
430 | _urb_queue_tail(__completed_q(husb, _urb->type), _urb); | |
431 | } | |
432 | ||
433 | /* Release completed requests */ | |
434 | while ((_urb = _urb_dequeue(&husb->completed_q[i]))) { | |
435 | urb = &_urb->urb; | |
436 | BT_DBG("%s freeing _urb %p type %d urb %p", | |
437 | husb->hdev->name, _urb, _urb->type, urb); | |
e9a3e671 MH |
438 | kfree(urb->setup_packet); |
439 | kfree(urb->transfer_buffer); | |
d129f188 | 440 | kfree(_urb); |
1da177e4 | 441 | } |
1da177e4 LT |
442 | } |
443 | } | |
444 | ||
445 | /* Close device */ | |
446 | static int hci_usb_close(struct hci_dev *hdev) | |
447 | { | |
448 | struct hci_usb *husb = (struct hci_usb *) hdev->driver_data; | |
449 | unsigned long flags; | |
450 | ||
451 | if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags)) | |
452 | return 0; | |
453 | ||
454 | BT_DBG("%s", hdev->name); | |
455 | ||
456 | /* Synchronize with completion handlers */ | |
457 | write_lock_irqsave(&husb->completion_lock, flags); | |
458 | write_unlock_irqrestore(&husb->completion_lock, flags); | |
459 | ||
460 | hci_usb_unlink_urbs(husb); | |
461 | hci_usb_flush(hdev); | |
462 | return 0; | |
463 | } | |
464 | ||
465 | static int __tx_submit(struct hci_usb *husb, struct _urb *_urb) | |
466 | { | |
467 | struct urb *urb = &_urb->urb; | |
468 | int err; | |
469 | ||
470 | BT_DBG("%s urb %p type %d", husb->hdev->name, urb, _urb->type); | |
471 | ||
472 | _urb_queue_tail(__pending_q(husb, _urb->type), _urb); | |
473 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
474 | if (err) { | |
475 | BT_ERR("%s tx submit failed urb %p type %d err %d", | |
476 | husb->hdev->name, urb, _urb->type, err); | |
477 | _urb_unlink(_urb); | |
478 | _urb_queue_tail(__completed_q(husb, _urb->type), _urb); | |
479 | } else | |
480 | atomic_inc(__pending_tx(husb, _urb->type)); | |
481 | ||
482 | return err; | |
483 | } | |
484 | ||
485 | static inline int hci_usb_send_ctrl(struct hci_usb *husb, struct sk_buff *skb) | |
486 | { | |
0d48d939 | 487 | struct _urb *_urb = __get_completed(husb, bt_cb(skb)->pkt_type); |
1da177e4 LT |
488 | struct usb_ctrlrequest *dr; |
489 | struct urb *urb; | |
490 | ||
491 | if (!_urb) { | |
492 | _urb = _urb_alloc(0, GFP_ATOMIC); | |
493 | if (!_urb) | |
494 | return -ENOMEM; | |
0d48d939 | 495 | _urb->type = bt_cb(skb)->pkt_type; |
1da177e4 LT |
496 | |
497 | dr = kmalloc(sizeof(*dr), GFP_ATOMIC); | |
498 | if (!dr) { | |
d129f188 | 499 | kfree(_urb); |
1da177e4 LT |
500 | return -ENOMEM; |
501 | } | |
502 | } else | |
503 | dr = (void *) _urb->urb.setup_packet; | |
504 | ||
505 | dr->bRequestType = husb->ctrl_req; | |
506 | dr->bRequest = 0; | |
507 | dr->wIndex = 0; | |
508 | dr->wValue = 0; | |
509 | dr->wLength = __cpu_to_le16(skb->len); | |
510 | ||
511 | urb = &_urb->urb; | |
512 | usb_fill_control_urb(urb, husb->udev, usb_sndctrlpipe(husb->udev, 0), | |
513 | (void *) dr, skb->data, skb->len, hci_usb_tx_complete, husb); | |
514 | ||
515 | BT_DBG("%s skb %p len %d", husb->hdev->name, skb, skb->len); | |
516 | ||
517 | _urb->priv = skb; | |
518 | return __tx_submit(husb, _urb); | |
519 | } | |
520 | ||
521 | static inline int hci_usb_send_bulk(struct hci_usb *husb, struct sk_buff *skb) | |
522 | { | |
0d48d939 | 523 | struct _urb *_urb = __get_completed(husb, bt_cb(skb)->pkt_type); |
1da177e4 LT |
524 | struct urb *urb; |
525 | int pipe; | |
526 | ||
527 | if (!_urb) { | |
528 | _urb = _urb_alloc(0, GFP_ATOMIC); | |
529 | if (!_urb) | |
530 | return -ENOMEM; | |
0d48d939 | 531 | _urb->type = bt_cb(skb)->pkt_type; |
1da177e4 LT |
532 | } |
533 | ||
534 | urb = &_urb->urb; | |
535 | pipe = usb_sndbulkpipe(husb->udev, husb->bulk_out_ep->desc.bEndpointAddress); | |
536 | usb_fill_bulk_urb(urb, husb->udev, pipe, skb->data, skb->len, | |
537 | hci_usb_tx_complete, husb); | |
538 | urb->transfer_flags = URB_ZERO_PACKET; | |
539 | ||
540 | BT_DBG("%s skb %p len %d", husb->hdev->name, skb, skb->len); | |
541 | ||
542 | _urb->priv = skb; | |
543 | return __tx_submit(husb, _urb); | |
544 | } | |
545 | ||
546 | #ifdef CONFIG_BT_HCIUSB_SCO | |
547 | static inline int hci_usb_send_isoc(struct hci_usb *husb, struct sk_buff *skb) | |
548 | { | |
0d48d939 | 549 | struct _urb *_urb = __get_completed(husb, bt_cb(skb)->pkt_type); |
1da177e4 LT |
550 | struct urb *urb; |
551 | ||
552 | if (!_urb) { | |
553 | _urb = _urb_alloc(HCI_MAX_ISOC_FRAMES, GFP_ATOMIC); | |
554 | if (!_urb) | |
555 | return -ENOMEM; | |
0d48d939 | 556 | _urb->type = bt_cb(skb)->pkt_type; |
1da177e4 LT |
557 | } |
558 | ||
559 | BT_DBG("%s skb %p len %d", husb->hdev->name, skb, skb->len); | |
560 | ||
561 | urb = &_urb->urb; | |
562 | ||
563 | urb->context = husb; | |
564 | urb->dev = husb->udev; | |
565 | urb->pipe = usb_sndisocpipe(husb->udev, husb->isoc_out_ep->desc.bEndpointAddress); | |
566 | urb->complete = hci_usb_tx_complete; | |
567 | urb->transfer_flags = URB_ISO_ASAP; | |
568 | ||
569 | urb->interval = husb->isoc_out_ep->desc.bInterval; | |
570 | ||
571 | urb->transfer_buffer = skb->data; | |
572 | urb->transfer_buffer_length = skb->len; | |
573 | ||
574 | __fill_isoc_desc(urb, skb->len, le16_to_cpu(husb->isoc_out_ep->desc.wMaxPacketSize)); | |
575 | ||
576 | _urb->priv = skb; | |
577 | return __tx_submit(husb, _urb); | |
578 | } | |
579 | #endif | |
580 | ||
581 | static void hci_usb_tx_process(struct hci_usb *husb) | |
582 | { | |
583 | struct sk_buff_head *q; | |
584 | struct sk_buff *skb; | |
585 | ||
586 | BT_DBG("%s", husb->hdev->name); | |
587 | ||
588 | do { | |
589 | clear_bit(HCI_USB_TX_WAKEUP, &husb->state); | |
590 | ||
591 | /* Process command queue */ | |
592 | q = __transmit_q(husb, HCI_COMMAND_PKT); | |
593 | if (!atomic_read(__pending_tx(husb, HCI_COMMAND_PKT)) && | |
594 | (skb = skb_dequeue(q))) { | |
595 | if (hci_usb_send_ctrl(husb, skb) < 0) | |
596 | skb_queue_head(q, skb); | |
597 | } | |
598 | ||
599 | #ifdef CONFIG_BT_HCIUSB_SCO | |
600 | /* Process SCO queue */ | |
601 | q = __transmit_q(husb, HCI_SCODATA_PKT); | |
602 | if (atomic_read(__pending_tx(husb, HCI_SCODATA_PKT)) < HCI_MAX_ISOC_TX && | |
603 | (skb = skb_dequeue(q))) { | |
604 | if (hci_usb_send_isoc(husb, skb) < 0) | |
605 | skb_queue_head(q, skb); | |
606 | } | |
607 | #endif | |
608 | ||
609 | /* Process ACL queue */ | |
610 | q = __transmit_q(husb, HCI_ACLDATA_PKT); | |
611 | while (atomic_read(__pending_tx(husb, HCI_ACLDATA_PKT)) < HCI_MAX_BULK_TX && | |
612 | (skb = skb_dequeue(q))) { | |
613 | if (hci_usb_send_bulk(husb, skb) < 0) { | |
614 | skb_queue_head(q, skb); | |
615 | break; | |
616 | } | |
617 | } | |
618 | } while(test_bit(HCI_USB_TX_WAKEUP, &husb->state)); | |
619 | } | |
620 | ||
621 | static inline void hci_usb_tx_wakeup(struct hci_usb *husb) | |
622 | { | |
623 | /* Serialize TX queue processing to avoid data reordering */ | |
624 | if (!test_and_set_bit(HCI_USB_TX_PROCESS, &husb->state)) { | |
625 | hci_usb_tx_process(husb); | |
626 | clear_bit(HCI_USB_TX_PROCESS, &husb->state); | |
627 | } else | |
628 | set_bit(HCI_USB_TX_WAKEUP, &husb->state); | |
629 | } | |
630 | ||
631 | /* Send frames from HCI layer */ | |
632 | static int hci_usb_send_frame(struct sk_buff *skb) | |
633 | { | |
634 | struct hci_dev *hdev = (struct hci_dev *) skb->dev; | |
635 | struct hci_usb *husb; | |
636 | ||
637 | if (!hdev) { | |
638 | BT_ERR("frame for uknown device (hdev=NULL)"); | |
639 | return -ENODEV; | |
640 | } | |
641 | ||
642 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
643 | return -EBUSY; | |
644 | ||
0d48d939 | 645 | BT_DBG("%s type %d len %d", hdev->name, bt_cb(skb)->pkt_type, skb->len); |
1da177e4 LT |
646 | |
647 | husb = (struct hci_usb *) hdev->driver_data; | |
648 | ||
0d48d939 | 649 | switch (bt_cb(skb)->pkt_type) { |
1da177e4 LT |
650 | case HCI_COMMAND_PKT: |
651 | hdev->stat.cmd_tx++; | |
652 | break; | |
653 | ||
654 | case HCI_ACLDATA_PKT: | |
655 | hdev->stat.acl_tx++; | |
656 | break; | |
657 | ||
658 | #ifdef CONFIG_BT_HCIUSB_SCO | |
659 | case HCI_SCODATA_PKT: | |
660 | hdev->stat.sco_tx++; | |
661 | break; | |
662 | #endif | |
663 | ||
664 | default: | |
665 | kfree_skb(skb); | |
666 | return 0; | |
667 | } | |
668 | ||
669 | read_lock(&husb->completion_lock); | |
670 | ||
0d48d939 | 671 | skb_queue_tail(__transmit_q(husb, bt_cb(skb)->pkt_type), skb); |
1da177e4 LT |
672 | hci_usb_tx_wakeup(husb); |
673 | ||
674 | read_unlock(&husb->completion_lock); | |
675 | return 0; | |
676 | } | |
677 | ||
7d12e780 | 678 | static void hci_usb_rx_complete(struct urb *urb) |
1da177e4 LT |
679 | { |
680 | struct _urb *_urb = container_of(urb, struct _urb, urb); | |
681 | struct hci_usb *husb = (void *) urb->context; | |
682 | struct hci_dev *hdev = husb->hdev; | |
683 | int err, count = urb->actual_length; | |
684 | ||
685 | BT_DBG("%s urb %p type %d status %d count %d flags %x", hdev->name, urb, | |
686 | _urb->type, urb->status, count, urb->transfer_flags); | |
687 | ||
688 | read_lock(&husb->completion_lock); | |
689 | ||
690 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
691 | goto unlock; | |
692 | ||
693 | if (urb->status || !count) | |
694 | goto resubmit; | |
695 | ||
696 | if (_urb->type == HCI_SCODATA_PKT) { | |
697 | #ifdef CONFIG_BT_HCIUSB_SCO | |
698 | int i; | |
699 | for (i=0; i < urb->number_of_packets; i++) { | |
700 | BT_DBG("desc %d status %d offset %d len %d", i, | |
701 | urb->iso_frame_desc[i].status, | |
702 | urb->iso_frame_desc[i].offset, | |
703 | urb->iso_frame_desc[i].actual_length); | |
704 | ||
26a4a06e MH |
705 | if (!urb->iso_frame_desc[i].status) { |
706 | husb->hdev->stat.byte_rx += urb->iso_frame_desc[i].actual_length; | |
babf4d42 | 707 | hci_recv_fragment(husb->hdev, _urb->type, |
1da177e4 LT |
708 | urb->transfer_buffer + urb->iso_frame_desc[i].offset, |
709 | urb->iso_frame_desc[i].actual_length); | |
26a4a06e | 710 | } |
1da177e4 LT |
711 | } |
712 | #else | |
713 | ; | |
714 | #endif | |
715 | } else { | |
26a4a06e | 716 | husb->hdev->stat.byte_rx += count; |
babf4d42 | 717 | err = hci_recv_fragment(husb->hdev, _urb->type, urb->transfer_buffer, count); |
1da177e4 LT |
718 | if (err < 0) { |
719 | BT_ERR("%s corrupted packet: type %d count %d", | |
720 | husb->hdev->name, _urb->type, count); | |
721 | hdev->stat.err_rx++; | |
722 | } | |
723 | } | |
724 | ||
725 | resubmit: | |
726 | urb->dev = husb->udev; | |
727 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
728 | BT_DBG("%s urb %p type %d resubmit status %d", hdev->name, urb, | |
729 | _urb->type, err); | |
730 | ||
731 | unlock: | |
732 | read_unlock(&husb->completion_lock); | |
733 | } | |
734 | ||
7d12e780 | 735 | static void hci_usb_tx_complete(struct urb *urb) |
1da177e4 LT |
736 | { |
737 | struct _urb *_urb = container_of(urb, struct _urb, urb); | |
738 | struct hci_usb *husb = (void *) urb->context; | |
739 | struct hci_dev *hdev = husb->hdev; | |
740 | ||
741 | BT_DBG("%s urb %p status %d flags %x", hdev->name, urb, | |
742 | urb->status, urb->transfer_flags); | |
743 | ||
744 | atomic_dec(__pending_tx(husb, _urb->type)); | |
745 | ||
746 | urb->transfer_buffer = NULL; | |
747 | kfree_skb((struct sk_buff *) _urb->priv); | |
748 | ||
749 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
750 | return; | |
751 | ||
752 | if (!urb->status) | |
753 | hdev->stat.byte_tx += urb->transfer_buffer_length; | |
754 | else | |
755 | hdev->stat.err_tx++; | |
756 | ||
757 | read_lock(&husb->completion_lock); | |
758 | ||
759 | _urb_unlink(_urb); | |
760 | _urb_queue_tail(__completed_q(husb, _urb->type), _urb); | |
761 | ||
762 | hci_usb_tx_wakeup(husb); | |
763 | ||
764 | read_unlock(&husb->completion_lock); | |
765 | } | |
766 | ||
767 | static void hci_usb_destruct(struct hci_dev *hdev) | |
768 | { | |
769 | struct hci_usb *husb = (struct hci_usb *) hdev->driver_data; | |
770 | ||
771 | BT_DBG("%s", hdev->name); | |
772 | ||
773 | kfree(husb); | |
774 | } | |
775 | ||
776 | static void hci_usb_notify(struct hci_dev *hdev, unsigned int evt) | |
777 | { | |
778 | BT_DBG("%s evt %d", hdev->name, evt); | |
779 | } | |
780 | ||
781 | static int hci_usb_probe(struct usb_interface *intf, const struct usb_device_id *id) | |
782 | { | |
783 | struct usb_device *udev = interface_to_usbdev(intf); | |
784 | struct usb_host_endpoint *bulk_out_ep = NULL; | |
785 | struct usb_host_endpoint *bulk_in_ep = NULL; | |
786 | struct usb_host_endpoint *intr_in_ep = NULL; | |
787 | struct usb_host_endpoint *ep; | |
788 | struct usb_host_interface *uif; | |
789 | struct usb_interface *isoc_iface; | |
790 | struct hci_usb *husb; | |
791 | struct hci_dev *hdev; | |
792 | int i, e, size, isoc_ifnum, isoc_alts; | |
793 | ||
794 | BT_DBG("udev %p intf %p", udev, intf); | |
795 | ||
796 | if (!id->driver_info) { | |
797 | const struct usb_device_id *match; | |
798 | match = usb_match_id(intf, blacklist_ids); | |
799 | if (match) | |
800 | id = match; | |
801 | } | |
802 | ||
943d56b0 | 803 | if (id->driver_info & HCI_IGNORE) |
1da177e4 LT |
804 | return -ENODEV; |
805 | ||
7ef934b3 MH |
806 | if (ignore_dga && id->driver_info & HCI_DIGIANSWER) |
807 | return -ENODEV; | |
808 | ||
0915e886 MH |
809 | if (ignore_csr && id->driver_info & HCI_CSR) |
810 | return -ENODEV; | |
811 | ||
812 | if (ignore_sniffer && id->driver_info & HCI_SNIFFER) | |
813 | return -ENODEV; | |
814 | ||
1da177e4 LT |
815 | if (intf->cur_altsetting->desc.bInterfaceNumber > 0) |
816 | return -ENODEV; | |
817 | ||
818 | /* Find endpoints that we need */ | |
819 | uif = intf->cur_altsetting; | |
820 | for (e = 0; e < uif->desc.bNumEndpoints; e++) { | |
821 | ep = &uif->endpoint[e]; | |
822 | ||
823 | switch (ep->desc.bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) { | |
824 | case USB_ENDPOINT_XFER_INT: | |
825 | if (ep->desc.bEndpointAddress & USB_DIR_IN) | |
826 | intr_in_ep = ep; | |
827 | break; | |
828 | ||
829 | case USB_ENDPOINT_XFER_BULK: | |
830 | if (ep->desc.bEndpointAddress & USB_DIR_IN) | |
831 | bulk_in_ep = ep; | |
832 | else | |
833 | bulk_out_ep = ep; | |
834 | break; | |
835 | } | |
836 | } | |
837 | ||
838 | if (!bulk_in_ep || !bulk_out_ep || !intr_in_ep) { | |
839 | BT_DBG("Bulk endpoints not found"); | |
840 | goto done; | |
841 | } | |
842 | ||
089b1dbb | 843 | if (!(husb = kzalloc(sizeof(struct hci_usb), GFP_KERNEL))) { |
1da177e4 LT |
844 | BT_ERR("Can't allocate: control structure"); |
845 | goto done; | |
846 | } | |
847 | ||
1da177e4 LT |
848 | husb->udev = udev; |
849 | husb->bulk_out_ep = bulk_out_ep; | |
850 | husb->bulk_in_ep = bulk_in_ep; | |
851 | husb->intr_in_ep = intr_in_ep; | |
852 | ||
853 | if (id->driver_info & HCI_DIGIANSWER) | |
854 | husb->ctrl_req = USB_TYPE_VENDOR; | |
855 | else | |
856 | husb->ctrl_req = USB_TYPE_CLASS; | |
857 | ||
858 | /* Find isochronous endpoints that we can use */ | |
859 | size = 0; | |
860 | isoc_iface = NULL; | |
861 | isoc_alts = 0; | |
862 | isoc_ifnum = 1; | |
863 | ||
864 | #ifdef CONFIG_BT_HCIUSB_SCO | |
865 | if (isoc && !(id->driver_info & (HCI_BROKEN_ISOC | HCI_SNIFFER))) | |
866 | isoc_iface = usb_ifnum_to_if(udev, isoc_ifnum); | |
867 | ||
868 | if (isoc_iface) { | |
869 | int a; | |
870 | struct usb_host_endpoint *isoc_out_ep = NULL; | |
871 | struct usb_host_endpoint *isoc_in_ep = NULL; | |
872 | ||
873 | for (a = 0; a < isoc_iface->num_altsetting; a++) { | |
874 | uif = &isoc_iface->altsetting[a]; | |
875 | for (e = 0; e < uif->desc.bNumEndpoints; e++) { | |
876 | ep = &uif->endpoint[e]; | |
877 | ||
878 | switch (ep->desc.bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) { | |
879 | case USB_ENDPOINT_XFER_ISOC: | |
880 | if (le16_to_cpu(ep->desc.wMaxPacketSize) < size || | |
881 | uif->desc.bAlternateSetting != isoc) | |
882 | break; | |
883 | size = le16_to_cpu(ep->desc.wMaxPacketSize); | |
884 | ||
885 | isoc_alts = uif->desc.bAlternateSetting; | |
886 | ||
887 | if (ep->desc.bEndpointAddress & USB_DIR_IN) | |
888 | isoc_in_ep = ep; | |
889 | else | |
890 | isoc_out_ep = ep; | |
891 | break; | |
892 | } | |
893 | } | |
894 | } | |
895 | ||
896 | if (!isoc_in_ep || !isoc_out_ep) | |
897 | BT_DBG("Isoc endpoints not found"); | |
898 | else { | |
899 | BT_DBG("isoc ifnum %d alts %d", isoc_ifnum, isoc_alts); | |
900 | if (usb_driver_claim_interface(&hci_usb_driver, isoc_iface, husb) != 0) | |
901 | BT_ERR("Can't claim isoc interface"); | |
902 | else if (usb_set_interface(udev, isoc_ifnum, isoc_alts)) { | |
903 | BT_ERR("Can't set isoc interface settings"); | |
904 | husb->isoc_iface = isoc_iface; | |
905 | usb_driver_release_interface(&hci_usb_driver, isoc_iface); | |
906 | husb->isoc_iface = NULL; | |
907 | } else { | |
908 | husb->isoc_iface = isoc_iface; | |
909 | husb->isoc_in_ep = isoc_in_ep; | |
910 | husb->isoc_out_ep = isoc_out_ep; | |
911 | } | |
912 | } | |
913 | } | |
914 | #endif | |
915 | ||
916 | rwlock_init(&husb->completion_lock); | |
917 | ||
918 | for (i = 0; i < 4; i++) { | |
919 | skb_queue_head_init(&husb->transmit_q[i]); | |
920 | _urb_queue_init(&husb->pending_q[i]); | |
921 | _urb_queue_init(&husb->completed_q[i]); | |
922 | } | |
923 | ||
924 | /* Initialize and register HCI device */ | |
925 | hdev = hci_alloc_dev(); | |
926 | if (!hdev) { | |
927 | BT_ERR("Can't allocate HCI device"); | |
928 | goto probe_error; | |
929 | } | |
930 | ||
931 | husb->hdev = hdev; | |
932 | ||
933 | hdev->type = HCI_USB; | |
934 | hdev->driver_data = husb; | |
935 | SET_HCIDEV_DEV(hdev, &intf->dev); | |
936 | ||
937 | hdev->open = hci_usb_open; | |
938 | hdev->close = hci_usb_close; | |
939 | hdev->flush = hci_usb_flush; | |
940 | hdev->send = hci_usb_send_frame; | |
941 | hdev->destruct = hci_usb_destruct; | |
942 | hdev->notify = hci_usb_notify; | |
943 | ||
944 | hdev->owner = THIS_MODULE; | |
945 | ||
946 | if (reset || id->driver_info & HCI_RESET) | |
947 | set_bit(HCI_QUIRK_RESET_ON_INIT, &hdev->quirks); | |
948 | ||
520ca78a MH |
949 | if (force_scofix || id->driver_info & HCI_WRONG_SCO_MTU) { |
950 | if (!disable_scofix) | |
951 | set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks); | |
952 | } | |
da1f5198 | 953 | |
1da177e4 LT |
954 | if (id->driver_info & HCI_SNIFFER) { |
955 | if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997) | |
956 | set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); | |
957 | } | |
958 | ||
959 | if (id->driver_info & HCI_BCM92035) { | |
960 | unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 }; | |
961 | struct sk_buff *skb; | |
962 | ||
963 | skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL); | |
964 | if (skb) { | |
965 | memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd)); | |
966 | skb_queue_tail(&hdev->driver_init, skb); | |
967 | } | |
968 | } | |
969 | ||
970 | if (hci_register_dev(hdev) < 0) { | |
971 | BT_ERR("Can't register HCI device"); | |
972 | hci_free_dev(hdev); | |
973 | goto probe_error; | |
974 | } | |
975 | ||
976 | usb_set_intfdata(intf, husb); | |
977 | return 0; | |
978 | ||
979 | probe_error: | |
980 | if (husb->isoc_iface) | |
981 | usb_driver_release_interface(&hci_usb_driver, husb->isoc_iface); | |
982 | kfree(husb); | |
983 | ||
984 | done: | |
985 | return -EIO; | |
986 | } | |
987 | ||
988 | static void hci_usb_disconnect(struct usb_interface *intf) | |
989 | { | |
990 | struct hci_usb *husb = usb_get_intfdata(intf); | |
991 | struct hci_dev *hdev; | |
992 | ||
993 | if (!husb || intf == husb->isoc_iface) | |
994 | return; | |
995 | ||
996 | usb_set_intfdata(intf, NULL); | |
997 | hdev = husb->hdev; | |
998 | ||
999 | BT_DBG("%s", hdev->name); | |
1000 | ||
1001 | hci_usb_close(hdev); | |
1002 | ||
1003 | if (husb->isoc_iface) | |
1004 | usb_driver_release_interface(&hci_usb_driver, husb->isoc_iface); | |
1005 | ||
1006 | if (hci_unregister_dev(hdev) < 0) | |
1007 | BT_ERR("Can't unregister HCI device %s", hdev->name); | |
1008 | ||
1009 | hci_free_dev(hdev); | |
1010 | } | |
1011 | ||
dcdcf63e MH |
1012 | static int hci_usb_suspend(struct usb_interface *intf, pm_message_t message) |
1013 | { | |
1014 | struct hci_usb *husb = usb_get_intfdata(intf); | |
1015 | struct list_head killed; | |
1016 | unsigned long flags; | |
1017 | int i; | |
1018 | ||
1019 | if (!husb || intf == husb->isoc_iface) | |
1020 | return 0; | |
1021 | ||
1022 | hci_suspend_dev(husb->hdev); | |
1023 | ||
1024 | INIT_LIST_HEAD(&killed); | |
1025 | ||
1026 | for (i = 0; i < 4; i++) { | |
1027 | struct _urb_queue *q = &husb->pending_q[i]; | |
1028 | struct _urb *_urb, *_tmp; | |
1029 | ||
1030 | while ((_urb = _urb_dequeue(q))) { | |
1031 | /* reset queue since _urb_dequeue sets it to NULL */ | |
1032 | _urb->queue = q; | |
1033 | usb_kill_urb(&_urb->urb); | |
1034 | list_add(&_urb->list, &killed); | |
1035 | } | |
1036 | ||
1037 | spin_lock_irqsave(&q->lock, flags); | |
1038 | ||
1039 | list_for_each_entry_safe(_urb, _tmp, &killed, list) { | |
1040 | list_move_tail(&_urb->list, &q->head); | |
1041 | } | |
1042 | ||
1043 | spin_unlock_irqrestore(&q->lock, flags); | |
1044 | } | |
1045 | ||
1046 | return 0; | |
1047 | } | |
1048 | ||
1049 | static int hci_usb_resume(struct usb_interface *intf) | |
1050 | { | |
1051 | struct hci_usb *husb = usb_get_intfdata(intf); | |
1052 | unsigned long flags; | |
1053 | int i, err = 0; | |
1054 | ||
1055 | if (!husb || intf == husb->isoc_iface) | |
1056 | return 0; | |
1057 | ||
1058 | for (i = 0; i < 4; i++) { | |
1059 | struct _urb_queue *q = &husb->pending_q[i]; | |
1060 | struct _urb *_urb; | |
1061 | ||
1062 | spin_lock_irqsave(&q->lock, flags); | |
1063 | ||
1064 | list_for_each_entry(_urb, &q->head, list) { | |
1065 | err = usb_submit_urb(&_urb->urb, GFP_ATOMIC); | |
1066 | if (err) | |
1067 | break; | |
1068 | } | |
1069 | ||
1070 | spin_unlock_irqrestore(&q->lock, flags); | |
1071 | ||
1072 | if (err) | |
1073 | return -EIO; | |
1074 | } | |
1075 | ||
1076 | hci_resume_dev(husb->hdev); | |
1077 | ||
1078 | return 0; | |
1079 | } | |
1080 | ||
1da177e4 | 1081 | static struct usb_driver hci_usb_driver = { |
1da177e4 LT |
1082 | .name = "hci_usb", |
1083 | .probe = hci_usb_probe, | |
1084 | .disconnect = hci_usb_disconnect, | |
dcdcf63e MH |
1085 | .suspend = hci_usb_suspend, |
1086 | .resume = hci_usb_resume, | |
1da177e4 LT |
1087 | .id_table = bluetooth_ids, |
1088 | }; | |
1089 | ||
1090 | static int __init hci_usb_init(void) | |
1091 | { | |
1092 | int err; | |
1093 | ||
1094 | BT_INFO("HCI USB driver ver %s", VERSION); | |
1095 | ||
1096 | if ((err = usb_register(&hci_usb_driver)) < 0) | |
1097 | BT_ERR("Failed to register HCI USB driver"); | |
1098 | ||
1099 | return err; | |
1100 | } | |
1101 | ||
1102 | static void __exit hci_usb_exit(void) | |
1103 | { | |
1104 | usb_deregister(&hci_usb_driver); | |
1105 | } | |
1106 | ||
1107 | module_init(hci_usb_init); | |
1108 | module_exit(hci_usb_exit); | |
1109 | ||
7ef934b3 MH |
1110 | module_param(ignore_dga, bool, 0644); |
1111 | MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001"); | |
1112 | ||
0915e886 MH |
1113 | module_param(ignore_csr, bool, 0644); |
1114 | MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001"); | |
1115 | ||
1116 | module_param(ignore_sniffer, bool, 0644); | |
1117 | MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002"); | |
1118 | ||
520ca78a MH |
1119 | module_param(disable_scofix, bool, 0644); |
1120 | MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size"); | |
1121 | ||
1122 | module_param(force_scofix, bool, 0644); | |
1123 | MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size"); | |
1124 | ||
1da177e4 LT |
1125 | module_param(reset, bool, 0644); |
1126 | MODULE_PARM_DESC(reset, "Send HCI reset command on initialization"); | |
1127 | ||
1128 | #ifdef CONFIG_BT_HCIUSB_SCO | |
1129 | module_param(isoc, int, 0644); | |
1130 | MODULE_PARM_DESC(isoc, "Set isochronous transfers for SCO over HCI support"); | |
1131 | #endif | |
1132 | ||
63fbd24e | 1133 | MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); |
1da177e4 LT |
1134 | MODULE_DESCRIPTION("Bluetooth HCI USB driver ver " VERSION); |
1135 | MODULE_VERSION(VERSION); | |
1136 | MODULE_LICENSE("GPL"); |