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Commit | Line | Data |
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5e23b923 MH |
1 | /* |
2 | * | |
3 | * Generic Bluetooth USB driver | |
4 | * | |
9bfa35fe | 5 | * Copyright (C) 2005-2008 Marcel Holtmann <marcel@holtmann.org> |
5e23b923 MH |
6 | * |
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 as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
21 | * | |
22 | */ | |
23 | ||
24 | #include <linux/kernel.h> | |
25 | #include <linux/module.h> | |
26 | #include <linux/init.h> | |
27 | #include <linux/slab.h> | |
28 | #include <linux/types.h> | |
29 | #include <linux/sched.h> | |
30 | #include <linux/errno.h> | |
31 | #include <linux/skbuff.h> | |
32 | ||
33 | #include <linux/usb.h> | |
34 | ||
35 | #include <net/bluetooth/bluetooth.h> | |
36 | #include <net/bluetooth/hci_core.h> | |
37 | ||
7bee549e | 38 | #define VERSION "0.6" |
cfeb4145 MH |
39 | |
40 | static int ignore_dga; | |
41 | static int ignore_csr; | |
42 | static int ignore_sniffer; | |
43 | static int disable_scofix; | |
44 | static int force_scofix; | |
7a9d4020 MH |
45 | |
46 | static int reset = 1; | |
cfeb4145 MH |
47 | |
48 | static struct usb_driver btusb_driver; | |
49 | ||
50 | #define BTUSB_IGNORE 0x01 | |
7a9d4020 MH |
51 | #define BTUSB_DIGIANSWER 0x02 |
52 | #define BTUSB_CSR 0x04 | |
53 | #define BTUSB_SNIFFER 0x08 | |
54 | #define BTUSB_BCM92035 0x10 | |
55 | #define BTUSB_BROKEN_ISOC 0x20 | |
56 | #define BTUSB_WRONG_SCO_MTU 0x40 | |
5e23b923 MH |
57 | |
58 | static struct usb_device_id btusb_table[] = { | |
59 | /* Generic Bluetooth USB device */ | |
60 | { USB_DEVICE_INFO(0xe0, 0x01, 0x01) }, | |
61 | ||
0a79f674 CL |
62 | /* Apple iMac11,1 */ |
63 | { USB_DEVICE(0x05ac, 0x8215) }, | |
64 | ||
cfeb4145 MH |
65 | /* AVM BlueFRITZ! USB v2.0 */ |
66 | { USB_DEVICE(0x057c, 0x3800) }, | |
67 | ||
68 | /* Bluetooth Ultraport Module from IBM */ | |
69 | { USB_DEVICE(0x04bf, 0x030a) }, | |
70 | ||
71 | /* ALPS Modules with non-standard id */ | |
72 | { USB_DEVICE(0x044e, 0x3001) }, | |
73 | { USB_DEVICE(0x044e, 0x3002) }, | |
74 | ||
75 | /* Ericsson with non-standard id */ | |
76 | { USB_DEVICE(0x0bdb, 0x1002) }, | |
77 | ||
78 | /* Canyon CN-BTU1 with HID interfaces */ | |
7a9d4020 | 79 | { USB_DEVICE(0x0c10, 0x0000) }, |
cfeb4145 | 80 | |
5e23b923 MH |
81 | { } /* Terminating entry */ |
82 | }; | |
83 | ||
84 | MODULE_DEVICE_TABLE(usb, btusb_table); | |
85 | ||
86 | static struct usb_device_id blacklist_table[] = { | |
cfeb4145 MH |
87 | /* CSR BlueCore devices */ |
88 | { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR }, | |
89 | ||
90 | /* Broadcom BCM2033 without firmware */ | |
91 | { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE }, | |
92 | ||
93 | /* Broadcom BCM2035 */ | |
7a9d4020 MH |
94 | { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU }, |
95 | { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU }, | |
96 | { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 }, | |
cfeb4145 MH |
97 | |
98 | /* Broadcom BCM2045 */ | |
7a9d4020 MH |
99 | { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU }, |
100 | { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU }, | |
bdbef3d6 | 101 | |
cfeb4145 | 102 | /* IBM/Lenovo ThinkPad with Broadcom chip */ |
7a9d4020 MH |
103 | { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU }, |
104 | { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU }, | |
cfeb4145 MH |
105 | |
106 | /* HP laptop with Broadcom chip */ | |
7a9d4020 | 107 | { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU }, |
cfeb4145 MH |
108 | |
109 | /* Dell laptop with Broadcom chip */ | |
7a9d4020 | 110 | { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU }, |
cfeb4145 | 111 | |
5ddd4a60 | 112 | /* Dell Wireless 370 and 410 devices */ |
7a9d4020 | 113 | { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU }, |
5ddd4a60 | 114 | { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU }, |
cfeb4145 | 115 | |
7a9d4020 MH |
116 | /* Belkin F8T012 and F8T013 devices */ |
117 | { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU }, | |
118 | { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU }, | |
cfeb4145 | 119 | |
5ddd4a60 MH |
120 | /* Asus WL-BTD202 device */ |
121 | { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU }, | |
122 | ||
123 | /* Kensington Bluetooth USB adapter */ | |
124 | { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU }, | |
125 | ||
cfeb4145 MH |
126 | /* RTX Telecom based adapters with buggy SCO support */ |
127 | { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC }, | |
128 | { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC }, | |
129 | ||
130 | /* CONWISE Technology based adapters with buggy SCO support */ | |
131 | { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC }, | |
132 | ||
cfeb4145 MH |
133 | /* Digianswer devices */ |
134 | { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER }, | |
135 | { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE }, | |
136 | ||
137 | /* CSR BlueCore Bluetooth Sniffer */ | |
138 | { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER }, | |
139 | ||
140 | /* Frontline ComProbe Bluetooth Sniffer */ | |
141 | { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER }, | |
142 | ||
5e23b923 MH |
143 | { } /* Terminating entry */ |
144 | }; | |
145 | ||
9bfa35fe MH |
146 | #define BTUSB_MAX_ISOC_FRAMES 10 |
147 | ||
5e23b923 MH |
148 | #define BTUSB_INTR_RUNNING 0 |
149 | #define BTUSB_BULK_RUNNING 1 | |
9bfa35fe | 150 | #define BTUSB_ISOC_RUNNING 2 |
7bee549e | 151 | #define BTUSB_SUSPENDING 3 |
08b8b6c4 | 152 | #define BTUSB_DID_ISO_RESUME 4 |
5e23b923 MH |
153 | |
154 | struct btusb_data { | |
155 | struct hci_dev *hdev; | |
156 | struct usb_device *udev; | |
5fbcd260 | 157 | struct usb_interface *intf; |
9bfa35fe | 158 | struct usb_interface *isoc; |
5e23b923 MH |
159 | |
160 | spinlock_t lock; | |
161 | ||
162 | unsigned long flags; | |
163 | ||
164 | struct work_struct work; | |
7bee549e | 165 | struct work_struct waker; |
5e23b923 MH |
166 | |
167 | struct usb_anchor tx_anchor; | |
168 | struct usb_anchor intr_anchor; | |
169 | struct usb_anchor bulk_anchor; | |
9bfa35fe | 170 | struct usb_anchor isoc_anchor; |
7bee549e ON |
171 | struct usb_anchor deferred; |
172 | int tx_in_flight; | |
173 | spinlock_t txlock; | |
5e23b923 MH |
174 | |
175 | struct usb_endpoint_descriptor *intr_ep; | |
176 | struct usb_endpoint_descriptor *bulk_tx_ep; | |
177 | struct usb_endpoint_descriptor *bulk_rx_ep; | |
9bfa35fe MH |
178 | struct usb_endpoint_descriptor *isoc_tx_ep; |
179 | struct usb_endpoint_descriptor *isoc_rx_ep; | |
180 | ||
7a9d4020 MH |
181 | __u8 cmdreq_type; |
182 | ||
43c2e57f | 183 | unsigned int sco_num; |
9bfa35fe | 184 | int isoc_altsetting; |
6a88adf2 | 185 | int suspend_count; |
5e23b923 MH |
186 | }; |
187 | ||
7bee549e ON |
188 | static int inc_tx(struct btusb_data *data) |
189 | { | |
190 | unsigned long flags; | |
191 | int rv; | |
192 | ||
193 | spin_lock_irqsave(&data->txlock, flags); | |
194 | rv = test_bit(BTUSB_SUSPENDING, &data->flags); | |
195 | if (!rv) | |
196 | data->tx_in_flight++; | |
197 | spin_unlock_irqrestore(&data->txlock, flags); | |
198 | ||
199 | return rv; | |
200 | } | |
201 | ||
5e23b923 MH |
202 | static void btusb_intr_complete(struct urb *urb) |
203 | { | |
204 | struct hci_dev *hdev = urb->context; | |
205 | struct btusb_data *data = hdev->driver_data; | |
206 | int err; | |
207 | ||
208 | BT_DBG("%s urb %p status %d count %d", hdev->name, | |
209 | urb, urb->status, urb->actual_length); | |
210 | ||
211 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
212 | return; | |
213 | ||
214 | if (urb->status == 0) { | |
9bfa35fe MH |
215 | hdev->stat.byte_rx += urb->actual_length; |
216 | ||
5e23b923 MH |
217 | if (hci_recv_fragment(hdev, HCI_EVENT_PKT, |
218 | urb->transfer_buffer, | |
219 | urb->actual_length) < 0) { | |
220 | BT_ERR("%s corrupted event packet", hdev->name); | |
221 | hdev->stat.err_rx++; | |
222 | } | |
223 | } | |
224 | ||
225 | if (!test_bit(BTUSB_INTR_RUNNING, &data->flags)) | |
226 | return; | |
227 | ||
7bee549e | 228 | usb_mark_last_busy(data->udev); |
5e23b923 MH |
229 | usb_anchor_urb(urb, &data->intr_anchor); |
230 | ||
231 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
232 | if (err < 0) { | |
233 | BT_ERR("%s urb %p failed to resubmit (%d)", | |
234 | hdev->name, urb, -err); | |
235 | usb_unanchor_urb(urb); | |
236 | } | |
237 | } | |
238 | ||
2eda66f4 | 239 | static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags) |
5e23b923 MH |
240 | { |
241 | struct btusb_data *data = hdev->driver_data; | |
242 | struct urb *urb; | |
243 | unsigned char *buf; | |
244 | unsigned int pipe; | |
245 | int err, size; | |
246 | ||
247 | BT_DBG("%s", hdev->name); | |
248 | ||
9bfa35fe MH |
249 | if (!data->intr_ep) |
250 | return -ENODEV; | |
251 | ||
2eda66f4 | 252 | urb = usb_alloc_urb(0, mem_flags); |
5e23b923 MH |
253 | if (!urb) |
254 | return -ENOMEM; | |
255 | ||
256 | size = le16_to_cpu(data->intr_ep->wMaxPacketSize); | |
257 | ||
2eda66f4 | 258 | buf = kmalloc(size, mem_flags); |
5e23b923 MH |
259 | if (!buf) { |
260 | usb_free_urb(urb); | |
261 | return -ENOMEM; | |
262 | } | |
263 | ||
264 | pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress); | |
265 | ||
266 | usb_fill_int_urb(urb, data->udev, pipe, buf, size, | |
267 | btusb_intr_complete, hdev, | |
268 | data->intr_ep->bInterval); | |
269 | ||
270 | urb->transfer_flags |= URB_FREE_BUFFER; | |
271 | ||
272 | usb_anchor_urb(urb, &data->intr_anchor); | |
273 | ||
2eda66f4 | 274 | err = usb_submit_urb(urb, mem_flags); |
5e23b923 MH |
275 | if (err < 0) { |
276 | BT_ERR("%s urb %p submission failed (%d)", | |
277 | hdev->name, urb, -err); | |
278 | usb_unanchor_urb(urb); | |
5e23b923 MH |
279 | } |
280 | ||
281 | usb_free_urb(urb); | |
282 | ||
283 | return err; | |
284 | } | |
285 | ||
286 | static void btusb_bulk_complete(struct urb *urb) | |
287 | { | |
288 | struct hci_dev *hdev = urb->context; | |
289 | struct btusb_data *data = hdev->driver_data; | |
290 | int err; | |
291 | ||
292 | BT_DBG("%s urb %p status %d count %d", hdev->name, | |
293 | urb, urb->status, urb->actual_length); | |
294 | ||
295 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
296 | return; | |
297 | ||
298 | if (urb->status == 0) { | |
9bfa35fe MH |
299 | hdev->stat.byte_rx += urb->actual_length; |
300 | ||
5e23b923 MH |
301 | if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT, |
302 | urb->transfer_buffer, | |
303 | urb->actual_length) < 0) { | |
304 | BT_ERR("%s corrupted ACL packet", hdev->name); | |
305 | hdev->stat.err_rx++; | |
306 | } | |
307 | } | |
308 | ||
309 | if (!test_bit(BTUSB_BULK_RUNNING, &data->flags)) | |
310 | return; | |
311 | ||
312 | usb_anchor_urb(urb, &data->bulk_anchor); | |
652fd781 | 313 | usb_mark_last_busy(data->udev); |
5e23b923 MH |
314 | |
315 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
316 | if (err < 0) { | |
317 | BT_ERR("%s urb %p failed to resubmit (%d)", | |
318 | hdev->name, urb, -err); | |
319 | usb_unanchor_urb(urb); | |
320 | } | |
321 | } | |
322 | ||
2eda66f4 | 323 | static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags) |
5e23b923 MH |
324 | { |
325 | struct btusb_data *data = hdev->driver_data; | |
326 | struct urb *urb; | |
327 | unsigned char *buf; | |
328 | unsigned int pipe; | |
290ba200 | 329 | int err, size = HCI_MAX_FRAME_SIZE; |
5e23b923 MH |
330 | |
331 | BT_DBG("%s", hdev->name); | |
332 | ||
9bfa35fe MH |
333 | if (!data->bulk_rx_ep) |
334 | return -ENODEV; | |
335 | ||
2eda66f4 | 336 | urb = usb_alloc_urb(0, mem_flags); |
5e23b923 MH |
337 | if (!urb) |
338 | return -ENOMEM; | |
339 | ||
2eda66f4 | 340 | buf = kmalloc(size, mem_flags); |
5e23b923 MH |
341 | if (!buf) { |
342 | usb_free_urb(urb); | |
343 | return -ENOMEM; | |
344 | } | |
345 | ||
346 | pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress); | |
347 | ||
348 | usb_fill_bulk_urb(urb, data->udev, pipe, | |
349 | buf, size, btusb_bulk_complete, hdev); | |
350 | ||
351 | urb->transfer_flags |= URB_FREE_BUFFER; | |
352 | ||
7bee549e | 353 | usb_mark_last_busy(data->udev); |
5e23b923 MH |
354 | usb_anchor_urb(urb, &data->bulk_anchor); |
355 | ||
2eda66f4 | 356 | err = usb_submit_urb(urb, mem_flags); |
5e23b923 MH |
357 | if (err < 0) { |
358 | BT_ERR("%s urb %p submission failed (%d)", | |
359 | hdev->name, urb, -err); | |
360 | usb_unanchor_urb(urb); | |
5e23b923 MH |
361 | } |
362 | ||
363 | usb_free_urb(urb); | |
364 | ||
365 | return err; | |
366 | } | |
367 | ||
9bfa35fe MH |
368 | static void btusb_isoc_complete(struct urb *urb) |
369 | { | |
370 | struct hci_dev *hdev = urb->context; | |
371 | struct btusb_data *data = hdev->driver_data; | |
372 | int i, err; | |
373 | ||
374 | BT_DBG("%s urb %p status %d count %d", hdev->name, | |
375 | urb, urb->status, urb->actual_length); | |
376 | ||
377 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
378 | return; | |
379 | ||
380 | if (urb->status == 0) { | |
381 | for (i = 0; i < urb->number_of_packets; i++) { | |
382 | unsigned int offset = urb->iso_frame_desc[i].offset; | |
383 | unsigned int length = urb->iso_frame_desc[i].actual_length; | |
384 | ||
385 | if (urb->iso_frame_desc[i].status) | |
386 | continue; | |
387 | ||
388 | hdev->stat.byte_rx += length; | |
389 | ||
390 | if (hci_recv_fragment(hdev, HCI_SCODATA_PKT, | |
391 | urb->transfer_buffer + offset, | |
392 | length) < 0) { | |
393 | BT_ERR("%s corrupted SCO packet", hdev->name); | |
394 | hdev->stat.err_rx++; | |
395 | } | |
396 | } | |
397 | } | |
398 | ||
399 | if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags)) | |
400 | return; | |
401 | ||
402 | usb_anchor_urb(urb, &data->isoc_anchor); | |
403 | ||
404 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
405 | if (err < 0) { | |
406 | BT_ERR("%s urb %p failed to resubmit (%d)", | |
407 | hdev->name, urb, -err); | |
408 | usb_unanchor_urb(urb); | |
409 | } | |
410 | } | |
411 | ||
412 | static void inline __fill_isoc_descriptor(struct urb *urb, int len, int mtu) | |
413 | { | |
414 | int i, offset = 0; | |
415 | ||
416 | BT_DBG("len %d mtu %d", len, mtu); | |
417 | ||
418 | for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu; | |
419 | i++, offset += mtu, len -= mtu) { | |
420 | urb->iso_frame_desc[i].offset = offset; | |
421 | urb->iso_frame_desc[i].length = mtu; | |
422 | } | |
423 | ||
424 | if (len && i < BTUSB_MAX_ISOC_FRAMES) { | |
425 | urb->iso_frame_desc[i].offset = offset; | |
426 | urb->iso_frame_desc[i].length = len; | |
427 | i++; | |
428 | } | |
429 | ||
430 | urb->number_of_packets = i; | |
431 | } | |
432 | ||
2eda66f4 | 433 | static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags) |
9bfa35fe MH |
434 | { |
435 | struct btusb_data *data = hdev->driver_data; | |
436 | struct urb *urb; | |
437 | unsigned char *buf; | |
438 | unsigned int pipe; | |
439 | int err, size; | |
440 | ||
441 | BT_DBG("%s", hdev->name); | |
442 | ||
443 | if (!data->isoc_rx_ep) | |
444 | return -ENODEV; | |
445 | ||
2eda66f4 | 446 | urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags); |
9bfa35fe MH |
447 | if (!urb) |
448 | return -ENOMEM; | |
449 | ||
450 | size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) * | |
451 | BTUSB_MAX_ISOC_FRAMES; | |
452 | ||
2eda66f4 | 453 | buf = kmalloc(size, mem_flags); |
9bfa35fe MH |
454 | if (!buf) { |
455 | usb_free_urb(urb); | |
456 | return -ENOMEM; | |
457 | } | |
458 | ||
459 | pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress); | |
460 | ||
461 | urb->dev = data->udev; | |
462 | urb->pipe = pipe; | |
463 | urb->context = hdev; | |
464 | urb->complete = btusb_isoc_complete; | |
465 | urb->interval = data->isoc_rx_ep->bInterval; | |
466 | ||
467 | urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP; | |
468 | urb->transfer_buffer = buf; | |
469 | urb->transfer_buffer_length = size; | |
470 | ||
471 | __fill_isoc_descriptor(urb, size, | |
472 | le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize)); | |
473 | ||
474 | usb_anchor_urb(urb, &data->isoc_anchor); | |
475 | ||
2eda66f4 | 476 | err = usb_submit_urb(urb, mem_flags); |
9bfa35fe MH |
477 | if (err < 0) { |
478 | BT_ERR("%s urb %p submission failed (%d)", | |
479 | hdev->name, urb, -err); | |
480 | usb_unanchor_urb(urb); | |
9bfa35fe MH |
481 | } |
482 | ||
483 | usb_free_urb(urb); | |
484 | ||
485 | return err; | |
486 | } | |
487 | ||
5e23b923 | 488 | static void btusb_tx_complete(struct urb *urb) |
7bee549e ON |
489 | { |
490 | struct sk_buff *skb = urb->context; | |
491 | struct hci_dev *hdev = (struct hci_dev *) skb->dev; | |
492 | struct btusb_data *data = hdev->driver_data; | |
493 | ||
494 | BT_DBG("%s urb %p status %d count %d", hdev->name, | |
495 | urb, urb->status, urb->actual_length); | |
496 | ||
497 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
498 | goto done; | |
499 | ||
500 | if (!urb->status) | |
501 | hdev->stat.byte_tx += urb->transfer_buffer_length; | |
502 | else | |
503 | hdev->stat.err_tx++; | |
504 | ||
505 | done: | |
506 | spin_lock(&data->txlock); | |
507 | data->tx_in_flight--; | |
508 | spin_unlock(&data->txlock); | |
509 | ||
510 | kfree(urb->setup_packet); | |
511 | ||
512 | kfree_skb(skb); | |
513 | } | |
514 | ||
515 | static void btusb_isoc_tx_complete(struct urb *urb) | |
5e23b923 MH |
516 | { |
517 | struct sk_buff *skb = urb->context; | |
518 | struct hci_dev *hdev = (struct hci_dev *) skb->dev; | |
519 | ||
520 | BT_DBG("%s urb %p status %d count %d", hdev->name, | |
521 | urb, urb->status, urb->actual_length); | |
522 | ||
523 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
524 | goto done; | |
525 | ||
526 | if (!urb->status) | |
527 | hdev->stat.byte_tx += urb->transfer_buffer_length; | |
528 | else | |
529 | hdev->stat.err_tx++; | |
530 | ||
531 | done: | |
532 | kfree(urb->setup_packet); | |
533 | ||
534 | kfree_skb(skb); | |
535 | } | |
536 | ||
537 | static int btusb_open(struct hci_dev *hdev) | |
538 | { | |
539 | struct btusb_data *data = hdev->driver_data; | |
540 | int err; | |
541 | ||
542 | BT_DBG("%s", hdev->name); | |
543 | ||
7bee549e ON |
544 | err = usb_autopm_get_interface(data->intf); |
545 | if (err < 0) | |
546 | return err; | |
547 | ||
548 | data->intf->needs_remote_wakeup = 1; | |
549 | ||
5e23b923 | 550 | if (test_and_set_bit(HCI_RUNNING, &hdev->flags)) |
7bee549e | 551 | goto done; |
5e23b923 MH |
552 | |
553 | if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags)) | |
7bee549e | 554 | goto done; |
5e23b923 | 555 | |
2eda66f4 | 556 | err = btusb_submit_intr_urb(hdev, GFP_KERNEL); |
43c2e57f MH |
557 | if (err < 0) |
558 | goto failed; | |
559 | ||
560 | err = btusb_submit_bulk_urb(hdev, GFP_KERNEL); | |
5e23b923 | 561 | if (err < 0) { |
43c2e57f MH |
562 | usb_kill_anchored_urbs(&data->intr_anchor); |
563 | goto failed; | |
5e23b923 MH |
564 | } |
565 | ||
43c2e57f MH |
566 | set_bit(BTUSB_BULK_RUNNING, &data->flags); |
567 | btusb_submit_bulk_urb(hdev, GFP_KERNEL); | |
568 | ||
7bee549e ON |
569 | done: |
570 | usb_autopm_put_interface(data->intf); | |
43c2e57f MH |
571 | return 0; |
572 | ||
573 | failed: | |
574 | clear_bit(BTUSB_INTR_RUNNING, &data->flags); | |
575 | clear_bit(HCI_RUNNING, &hdev->flags); | |
7bee549e | 576 | usb_autopm_put_interface(data->intf); |
5e23b923 MH |
577 | return err; |
578 | } | |
579 | ||
7bee549e ON |
580 | static void btusb_stop_traffic(struct btusb_data *data) |
581 | { | |
582 | usb_kill_anchored_urbs(&data->intr_anchor); | |
583 | usb_kill_anchored_urbs(&data->bulk_anchor); | |
584 | usb_kill_anchored_urbs(&data->isoc_anchor); | |
585 | } | |
586 | ||
5e23b923 MH |
587 | static int btusb_close(struct hci_dev *hdev) |
588 | { | |
589 | struct btusb_data *data = hdev->driver_data; | |
7bee549e | 590 | int err; |
5e23b923 MH |
591 | |
592 | BT_DBG("%s", hdev->name); | |
593 | ||
594 | if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags)) | |
595 | return 0; | |
596 | ||
e8c3c3d2 | 597 | cancel_work_sync(&data->work); |
404291ac | 598 | cancel_work_sync(&data->waker); |
e8c3c3d2 | 599 | |
9bfa35fe | 600 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); |
5e23b923 | 601 | clear_bit(BTUSB_BULK_RUNNING, &data->flags); |
5e23b923 | 602 | clear_bit(BTUSB_INTR_RUNNING, &data->flags); |
7bee549e ON |
603 | |
604 | btusb_stop_traffic(data); | |
605 | err = usb_autopm_get_interface(data->intf); | |
606 | if (err < 0) | |
7b8e2c1d | 607 | goto failed; |
7bee549e ON |
608 | |
609 | data->intf->needs_remote_wakeup = 0; | |
610 | usb_autopm_put_interface(data->intf); | |
5e23b923 | 611 | |
7b8e2c1d ON |
612 | failed: |
613 | usb_scuttle_anchored_urbs(&data->deferred); | |
5e23b923 MH |
614 | return 0; |
615 | } | |
616 | ||
617 | static int btusb_flush(struct hci_dev *hdev) | |
618 | { | |
619 | struct btusb_data *data = hdev->driver_data; | |
620 | ||
621 | BT_DBG("%s", hdev->name); | |
622 | ||
623 | usb_kill_anchored_urbs(&data->tx_anchor); | |
624 | ||
625 | return 0; | |
626 | } | |
627 | ||
628 | static int btusb_send_frame(struct sk_buff *skb) | |
629 | { | |
630 | struct hci_dev *hdev = (struct hci_dev *) skb->dev; | |
631 | struct btusb_data *data = hdev->driver_data; | |
632 | struct usb_ctrlrequest *dr; | |
633 | struct urb *urb; | |
634 | unsigned int pipe; | |
635 | int err; | |
636 | ||
637 | BT_DBG("%s", hdev->name); | |
638 | ||
639 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
640 | return -EBUSY; | |
641 | ||
642 | switch (bt_cb(skb)->pkt_type) { | |
643 | case HCI_COMMAND_PKT: | |
644 | urb = usb_alloc_urb(0, GFP_ATOMIC); | |
645 | if (!urb) | |
646 | return -ENOMEM; | |
647 | ||
648 | dr = kmalloc(sizeof(*dr), GFP_ATOMIC); | |
649 | if (!dr) { | |
650 | usb_free_urb(urb); | |
651 | return -ENOMEM; | |
652 | } | |
653 | ||
7a9d4020 | 654 | dr->bRequestType = data->cmdreq_type; |
5e23b923 MH |
655 | dr->bRequest = 0; |
656 | dr->wIndex = 0; | |
657 | dr->wValue = 0; | |
658 | dr->wLength = __cpu_to_le16(skb->len); | |
659 | ||
660 | pipe = usb_sndctrlpipe(data->udev, 0x00); | |
661 | ||
662 | usb_fill_control_urb(urb, data->udev, pipe, (void *) dr, | |
663 | skb->data, skb->len, btusb_tx_complete, skb); | |
664 | ||
665 | hdev->stat.cmd_tx++; | |
666 | break; | |
667 | ||
668 | case HCI_ACLDATA_PKT: | |
9bfa35fe MH |
669 | if (!data->bulk_tx_ep || hdev->conn_hash.acl_num < 1) |
670 | return -ENODEV; | |
671 | ||
5e23b923 MH |
672 | urb = usb_alloc_urb(0, GFP_ATOMIC); |
673 | if (!urb) | |
674 | return -ENOMEM; | |
675 | ||
676 | pipe = usb_sndbulkpipe(data->udev, | |
677 | data->bulk_tx_ep->bEndpointAddress); | |
678 | ||
679 | usb_fill_bulk_urb(urb, data->udev, pipe, | |
680 | skb->data, skb->len, btusb_tx_complete, skb); | |
681 | ||
682 | hdev->stat.acl_tx++; | |
683 | break; | |
684 | ||
685 | case HCI_SCODATA_PKT: | |
9bfa35fe MH |
686 | if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1) |
687 | return -ENODEV; | |
688 | ||
689 | urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC); | |
690 | if (!urb) | |
691 | return -ENOMEM; | |
692 | ||
693 | pipe = usb_sndisocpipe(data->udev, | |
694 | data->isoc_tx_ep->bEndpointAddress); | |
695 | ||
696 | urb->dev = data->udev; | |
697 | urb->pipe = pipe; | |
698 | urb->context = skb; | |
7bee549e | 699 | urb->complete = btusb_isoc_tx_complete; |
9bfa35fe MH |
700 | urb->interval = data->isoc_tx_ep->bInterval; |
701 | ||
702 | urb->transfer_flags = URB_ISO_ASAP; | |
703 | urb->transfer_buffer = skb->data; | |
704 | urb->transfer_buffer_length = skb->len; | |
705 | ||
706 | __fill_isoc_descriptor(urb, skb->len, | |
707 | le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize)); | |
708 | ||
5e23b923 | 709 | hdev->stat.sco_tx++; |
7bee549e | 710 | goto skip_waking; |
5e23b923 MH |
711 | |
712 | default: | |
713 | return -EILSEQ; | |
714 | } | |
715 | ||
7bee549e ON |
716 | err = inc_tx(data); |
717 | if (err) { | |
718 | usb_anchor_urb(urb, &data->deferred); | |
719 | schedule_work(&data->waker); | |
720 | err = 0; | |
721 | goto done; | |
722 | } | |
723 | ||
724 | skip_waking: | |
5e23b923 MH |
725 | usb_anchor_urb(urb, &data->tx_anchor); |
726 | ||
727 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
728 | if (err < 0) { | |
729 | BT_ERR("%s urb %p submission failed", hdev->name, urb); | |
730 | kfree(urb->setup_packet); | |
731 | usb_unanchor_urb(urb); | |
7bee549e ON |
732 | } else { |
733 | usb_mark_last_busy(data->udev); | |
5e23b923 MH |
734 | } |
735 | ||
736 | usb_free_urb(urb); | |
737 | ||
7bee549e | 738 | done: |
5e23b923 MH |
739 | return err; |
740 | } | |
741 | ||
742 | static void btusb_destruct(struct hci_dev *hdev) | |
743 | { | |
744 | struct btusb_data *data = hdev->driver_data; | |
745 | ||
746 | BT_DBG("%s", hdev->name); | |
747 | ||
748 | kfree(data); | |
749 | } | |
750 | ||
751 | static void btusb_notify(struct hci_dev *hdev, unsigned int evt) | |
752 | { | |
753 | struct btusb_data *data = hdev->driver_data; | |
754 | ||
755 | BT_DBG("%s evt %d", hdev->name, evt); | |
756 | ||
43c2e57f MH |
757 | if (hdev->conn_hash.sco_num != data->sco_num) { |
758 | data->sco_num = hdev->conn_hash.sco_num; | |
759 | schedule_work(&data->work); | |
a780efa8 | 760 | } |
5e23b923 MH |
761 | } |
762 | ||
9bfa35fe MH |
763 | static int inline __set_isoc_interface(struct hci_dev *hdev, int altsetting) |
764 | { | |
765 | struct btusb_data *data = hdev->driver_data; | |
766 | struct usb_interface *intf = data->isoc; | |
767 | struct usb_endpoint_descriptor *ep_desc; | |
768 | int i, err; | |
769 | ||
770 | if (!data->isoc) | |
771 | return -ENODEV; | |
772 | ||
773 | err = usb_set_interface(data->udev, 1, altsetting); | |
774 | if (err < 0) { | |
775 | BT_ERR("%s setting interface failed (%d)", hdev->name, -err); | |
776 | return err; | |
777 | } | |
778 | ||
779 | data->isoc_altsetting = altsetting; | |
780 | ||
781 | data->isoc_tx_ep = NULL; | |
782 | data->isoc_rx_ep = NULL; | |
783 | ||
784 | for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { | |
785 | ep_desc = &intf->cur_altsetting->endpoint[i].desc; | |
786 | ||
787 | if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) { | |
788 | data->isoc_tx_ep = ep_desc; | |
789 | continue; | |
790 | } | |
791 | ||
792 | if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) { | |
793 | data->isoc_rx_ep = ep_desc; | |
794 | continue; | |
795 | } | |
796 | } | |
797 | ||
798 | if (!data->isoc_tx_ep || !data->isoc_rx_ep) { | |
799 | BT_ERR("%s invalid SCO descriptors", hdev->name); | |
800 | return -ENODEV; | |
801 | } | |
802 | ||
803 | return 0; | |
804 | } | |
805 | ||
5e23b923 MH |
806 | static void btusb_work(struct work_struct *work) |
807 | { | |
808 | struct btusb_data *data = container_of(work, struct btusb_data, work); | |
809 | struct hci_dev *hdev = data->hdev; | |
7bee549e | 810 | int err; |
5e23b923 | 811 | |
9bfa35fe | 812 | if (hdev->conn_hash.sco_num > 0) { |
08b8b6c4 | 813 | if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) { |
7bee549e ON |
814 | err = usb_autopm_get_interface(data->isoc); |
815 | if (err < 0) { | |
816 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); | |
817 | usb_kill_anchored_urbs(&data->isoc_anchor); | |
818 | return; | |
819 | } | |
820 | ||
08b8b6c4 | 821 | set_bit(BTUSB_DID_ISO_RESUME, &data->flags); |
7bee549e | 822 | } |
9bfa35fe MH |
823 | if (data->isoc_altsetting != 2) { |
824 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); | |
825 | usb_kill_anchored_urbs(&data->isoc_anchor); | |
826 | ||
827 | if (__set_isoc_interface(hdev, 2) < 0) | |
828 | return; | |
829 | } | |
830 | ||
831 | if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) { | |
2eda66f4 | 832 | if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0) |
9bfa35fe MH |
833 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); |
834 | else | |
2eda66f4 | 835 | btusb_submit_isoc_urb(hdev, GFP_KERNEL); |
9bfa35fe MH |
836 | } |
837 | } else { | |
838 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); | |
839 | usb_kill_anchored_urbs(&data->isoc_anchor); | |
840 | ||
841 | __set_isoc_interface(hdev, 0); | |
08b8b6c4 | 842 | if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags)) |
7bee549e | 843 | usb_autopm_put_interface(data->isoc); |
5e23b923 MH |
844 | } |
845 | } | |
846 | ||
7bee549e ON |
847 | static void btusb_waker(struct work_struct *work) |
848 | { | |
849 | struct btusb_data *data = container_of(work, struct btusb_data, waker); | |
850 | int err; | |
851 | ||
852 | err = usb_autopm_get_interface(data->intf); | |
853 | if (err < 0) | |
854 | return; | |
855 | ||
856 | usb_autopm_put_interface(data->intf); | |
857 | } | |
858 | ||
5e23b923 MH |
859 | static int btusb_probe(struct usb_interface *intf, |
860 | const struct usb_device_id *id) | |
861 | { | |
862 | struct usb_endpoint_descriptor *ep_desc; | |
863 | struct btusb_data *data; | |
864 | struct hci_dev *hdev; | |
865 | int i, err; | |
866 | ||
867 | BT_DBG("intf %p id %p", intf, id); | |
868 | ||
cfeb4145 | 869 | /* interface numbers are hardcoded in the spec */ |
5e23b923 MH |
870 | if (intf->cur_altsetting->desc.bInterfaceNumber != 0) |
871 | return -ENODEV; | |
872 | ||
873 | if (!id->driver_info) { | |
874 | const struct usb_device_id *match; | |
875 | match = usb_match_id(intf, blacklist_table); | |
876 | if (match) | |
877 | id = match; | |
878 | } | |
879 | ||
cfeb4145 MH |
880 | if (id->driver_info == BTUSB_IGNORE) |
881 | return -ENODEV; | |
882 | ||
883 | if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER) | |
884 | return -ENODEV; | |
885 | ||
886 | if (ignore_csr && id->driver_info & BTUSB_CSR) | |
887 | return -ENODEV; | |
888 | ||
889 | if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER) | |
890 | return -ENODEV; | |
891 | ||
5e23b923 MH |
892 | data = kzalloc(sizeof(*data), GFP_KERNEL); |
893 | if (!data) | |
894 | return -ENOMEM; | |
895 | ||
896 | for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { | |
897 | ep_desc = &intf->cur_altsetting->endpoint[i].desc; | |
898 | ||
899 | if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) { | |
900 | data->intr_ep = ep_desc; | |
901 | continue; | |
902 | } | |
903 | ||
904 | if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { | |
905 | data->bulk_tx_ep = ep_desc; | |
906 | continue; | |
907 | } | |
908 | ||
909 | if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { | |
910 | data->bulk_rx_ep = ep_desc; | |
911 | continue; | |
912 | } | |
913 | } | |
914 | ||
915 | if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) { | |
916 | kfree(data); | |
917 | return -ENODEV; | |
918 | } | |
919 | ||
7a9d4020 MH |
920 | data->cmdreq_type = USB_TYPE_CLASS; |
921 | ||
5e23b923 | 922 | data->udev = interface_to_usbdev(intf); |
5fbcd260 | 923 | data->intf = intf; |
5e23b923 MH |
924 | |
925 | spin_lock_init(&data->lock); | |
926 | ||
927 | INIT_WORK(&data->work, btusb_work); | |
7bee549e ON |
928 | INIT_WORK(&data->waker, btusb_waker); |
929 | spin_lock_init(&data->txlock); | |
5e23b923 MH |
930 | |
931 | init_usb_anchor(&data->tx_anchor); | |
932 | init_usb_anchor(&data->intr_anchor); | |
933 | init_usb_anchor(&data->bulk_anchor); | |
9bfa35fe | 934 | init_usb_anchor(&data->isoc_anchor); |
7bee549e | 935 | init_usb_anchor(&data->deferred); |
5e23b923 MH |
936 | |
937 | hdev = hci_alloc_dev(); | |
938 | if (!hdev) { | |
939 | kfree(data); | |
940 | return -ENOMEM; | |
941 | } | |
942 | ||
c13854ce | 943 | hdev->bus = HCI_USB; |
5e23b923 MH |
944 | hdev->driver_data = data; |
945 | ||
946 | data->hdev = hdev; | |
947 | ||
948 | SET_HCIDEV_DEV(hdev, &intf->dev); | |
949 | ||
950 | hdev->open = btusb_open; | |
951 | hdev->close = btusb_close; | |
952 | hdev->flush = btusb_flush; | |
953 | hdev->send = btusb_send_frame; | |
954 | hdev->destruct = btusb_destruct; | |
955 | hdev->notify = btusb_notify; | |
956 | ||
957 | hdev->owner = THIS_MODULE; | |
958 | ||
7a9d4020 | 959 | /* Interface numbers are hardcoded in the specification */ |
9bfa35fe MH |
960 | data->isoc = usb_ifnum_to_if(data->udev, 1); |
961 | ||
7a9d4020 MH |
962 | if (!reset) |
963 | set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks); | |
cfeb4145 MH |
964 | |
965 | if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) { | |
966 | if (!disable_scofix) | |
967 | set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks); | |
968 | } | |
969 | ||
9bfa35fe MH |
970 | if (id->driver_info & BTUSB_BROKEN_ISOC) |
971 | data->isoc = NULL; | |
972 | ||
7a9d4020 MH |
973 | if (id->driver_info & BTUSB_DIGIANSWER) { |
974 | data->cmdreq_type = USB_TYPE_VENDOR; | |
975 | set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks); | |
976 | } | |
977 | ||
978 | if (id->driver_info & BTUSB_CSR) { | |
979 | struct usb_device *udev = data->udev; | |
980 | ||
981 | /* Old firmware would otherwise execute USB reset */ | |
982 | if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117) | |
983 | set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks); | |
984 | } | |
985 | ||
cfeb4145 | 986 | if (id->driver_info & BTUSB_SNIFFER) { |
9bfa35fe | 987 | struct usb_device *udev = data->udev; |
cfeb4145 | 988 | |
7a9d4020 | 989 | /* New sniffer firmware has crippled HCI interface */ |
cfeb4145 MH |
990 | if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997) |
991 | set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); | |
9bfa35fe MH |
992 | |
993 | data->isoc = NULL; | |
cfeb4145 MH |
994 | } |
995 | ||
996 | if (id->driver_info & BTUSB_BCM92035) { | |
997 | unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 }; | |
998 | struct sk_buff *skb; | |
999 | ||
1000 | skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL); | |
1001 | if (skb) { | |
1002 | memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd)); | |
1003 | skb_queue_tail(&hdev->driver_init, skb); | |
1004 | } | |
1005 | } | |
5e23b923 | 1006 | |
9bfa35fe MH |
1007 | if (data->isoc) { |
1008 | err = usb_driver_claim_interface(&btusb_driver, | |
5fbcd260 | 1009 | data->isoc, data); |
9bfa35fe MH |
1010 | if (err < 0) { |
1011 | hci_free_dev(hdev); | |
1012 | kfree(data); | |
1013 | return err; | |
1014 | } | |
1015 | } | |
1016 | ||
5e23b923 MH |
1017 | err = hci_register_dev(hdev); |
1018 | if (err < 0) { | |
1019 | hci_free_dev(hdev); | |
1020 | kfree(data); | |
1021 | return err; | |
1022 | } | |
1023 | ||
1024 | usb_set_intfdata(intf, data); | |
1025 | ||
1026 | return 0; | |
1027 | } | |
1028 | ||
1029 | static void btusb_disconnect(struct usb_interface *intf) | |
1030 | { | |
1031 | struct btusb_data *data = usb_get_intfdata(intf); | |
1032 | struct hci_dev *hdev; | |
1033 | ||
1034 | BT_DBG("intf %p", intf); | |
1035 | ||
1036 | if (!data) | |
1037 | return; | |
1038 | ||
1039 | hdev = data->hdev; | |
1040 | ||
5fbcd260 | 1041 | __hci_dev_hold(hdev); |
9bfa35fe | 1042 | |
5fbcd260 MH |
1043 | usb_set_intfdata(data->intf, NULL); |
1044 | ||
1045 | if (data->isoc) | |
1046 | usb_set_intfdata(data->isoc, NULL); | |
5e23b923 MH |
1047 | |
1048 | hci_unregister_dev(hdev); | |
1049 | ||
5fbcd260 MH |
1050 | if (intf == data->isoc) |
1051 | usb_driver_release_interface(&btusb_driver, data->intf); | |
1052 | else if (data->isoc) | |
1053 | usb_driver_release_interface(&btusb_driver, data->isoc); | |
1054 | ||
1055 | __hci_dev_put(hdev); | |
1056 | ||
5e23b923 MH |
1057 | hci_free_dev(hdev); |
1058 | } | |
1059 | ||
7bee549e | 1060 | #ifdef CONFIG_PM |
6a88adf2 MH |
1061 | static int btusb_suspend(struct usb_interface *intf, pm_message_t message) |
1062 | { | |
1063 | struct btusb_data *data = usb_get_intfdata(intf); | |
1064 | ||
1065 | BT_DBG("intf %p", intf); | |
1066 | ||
1067 | if (data->suspend_count++) | |
1068 | return 0; | |
1069 | ||
7bee549e | 1070 | spin_lock_irq(&data->txlock); |
fb34d537 | 1071 | if (!((message.event & PM_EVENT_AUTO) && data->tx_in_flight)) { |
7bee549e ON |
1072 | set_bit(BTUSB_SUSPENDING, &data->flags); |
1073 | spin_unlock_irq(&data->txlock); | |
1074 | } else { | |
1075 | spin_unlock_irq(&data->txlock); | |
1076 | data->suspend_count--; | |
1077 | return -EBUSY; | |
1078 | } | |
1079 | ||
6a88adf2 MH |
1080 | cancel_work_sync(&data->work); |
1081 | ||
7bee549e | 1082 | btusb_stop_traffic(data); |
6a88adf2 MH |
1083 | usb_kill_anchored_urbs(&data->tx_anchor); |
1084 | ||
6a88adf2 MH |
1085 | return 0; |
1086 | } | |
1087 | ||
7bee549e ON |
1088 | static void play_deferred(struct btusb_data *data) |
1089 | { | |
1090 | struct urb *urb; | |
1091 | int err; | |
1092 | ||
1093 | while ((urb = usb_get_from_anchor(&data->deferred))) { | |
1094 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
1095 | if (err < 0) | |
1096 | break; | |
1097 | ||
1098 | data->tx_in_flight++; | |
1099 | } | |
1100 | usb_scuttle_anchored_urbs(&data->deferred); | |
1101 | } | |
1102 | ||
6a88adf2 MH |
1103 | static int btusb_resume(struct usb_interface *intf) |
1104 | { | |
1105 | struct btusb_data *data = usb_get_intfdata(intf); | |
1106 | struct hci_dev *hdev = data->hdev; | |
7bee549e | 1107 | int err = 0; |
6a88adf2 MH |
1108 | |
1109 | BT_DBG("intf %p", intf); | |
1110 | ||
1111 | if (--data->suspend_count) | |
1112 | return 0; | |
1113 | ||
1114 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
7bee549e | 1115 | goto done; |
6a88adf2 MH |
1116 | |
1117 | if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) { | |
1118 | err = btusb_submit_intr_urb(hdev, GFP_NOIO); | |
1119 | if (err < 0) { | |
1120 | clear_bit(BTUSB_INTR_RUNNING, &data->flags); | |
7bee549e | 1121 | goto failed; |
6a88adf2 MH |
1122 | } |
1123 | } | |
1124 | ||
1125 | if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) { | |
43c2e57f MH |
1126 | err = btusb_submit_bulk_urb(hdev, GFP_NOIO); |
1127 | if (err < 0) { | |
6a88adf2 | 1128 | clear_bit(BTUSB_BULK_RUNNING, &data->flags); |
7bee549e ON |
1129 | goto failed; |
1130 | } | |
1131 | ||
1132 | btusb_submit_bulk_urb(hdev, GFP_NOIO); | |
6a88adf2 MH |
1133 | } |
1134 | ||
1135 | if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) { | |
1136 | if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0) | |
1137 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); | |
1138 | else | |
1139 | btusb_submit_isoc_urb(hdev, GFP_NOIO); | |
1140 | } | |
1141 | ||
7bee549e ON |
1142 | spin_lock_irq(&data->txlock); |
1143 | play_deferred(data); | |
1144 | clear_bit(BTUSB_SUSPENDING, &data->flags); | |
1145 | spin_unlock_irq(&data->txlock); | |
1146 | schedule_work(&data->work); | |
1147 | ||
6a88adf2 | 1148 | return 0; |
7bee549e ON |
1149 | |
1150 | failed: | |
1151 | usb_scuttle_anchored_urbs(&data->deferred); | |
1152 | done: | |
1153 | spin_lock_irq(&data->txlock); | |
1154 | clear_bit(BTUSB_SUSPENDING, &data->flags); | |
1155 | spin_unlock_irq(&data->txlock); | |
1156 | ||
1157 | return err; | |
6a88adf2 | 1158 | } |
7bee549e | 1159 | #endif |
6a88adf2 | 1160 | |
5e23b923 MH |
1161 | static struct usb_driver btusb_driver = { |
1162 | .name = "btusb", | |
1163 | .probe = btusb_probe, | |
1164 | .disconnect = btusb_disconnect, | |
7bee549e | 1165 | #ifdef CONFIG_PM |
6a88adf2 MH |
1166 | .suspend = btusb_suspend, |
1167 | .resume = btusb_resume, | |
7bee549e | 1168 | #endif |
5e23b923 | 1169 | .id_table = btusb_table, |
7bee549e | 1170 | .supports_autosuspend = 1, |
5e23b923 MH |
1171 | }; |
1172 | ||
1173 | static int __init btusb_init(void) | |
1174 | { | |
1175 | BT_INFO("Generic Bluetooth USB driver ver %s", VERSION); | |
1176 | ||
1177 | return usb_register(&btusb_driver); | |
1178 | } | |
1179 | ||
1180 | static void __exit btusb_exit(void) | |
1181 | { | |
1182 | usb_deregister(&btusb_driver); | |
1183 | } | |
1184 | ||
1185 | module_init(btusb_init); | |
1186 | module_exit(btusb_exit); | |
1187 | ||
cfeb4145 MH |
1188 | module_param(ignore_dga, bool, 0644); |
1189 | MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001"); | |
1190 | ||
1191 | module_param(ignore_csr, bool, 0644); | |
1192 | MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001"); | |
1193 | ||
1194 | module_param(ignore_sniffer, bool, 0644); | |
1195 | MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002"); | |
1196 | ||
1197 | module_param(disable_scofix, bool, 0644); | |
1198 | MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size"); | |
1199 | ||
1200 | module_param(force_scofix, bool, 0644); | |
1201 | MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size"); | |
1202 | ||
1203 | module_param(reset, bool, 0644); | |
1204 | MODULE_PARM_DESC(reset, "Send HCI reset command on initialization"); | |
1205 | ||
5e23b923 MH |
1206 | MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); |
1207 | MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION); | |
1208 | MODULE_VERSION(VERSION); | |
1209 | MODULE_LICENSE("GPL"); |