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