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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 | ||
3cd01976 NI |
62 | /* Apple MacBookPro 7,1 */ |
63 | { USB_DEVICE(0x05ac, 0x8213) }, | |
64 | ||
0a79f674 CL |
65 | /* Apple iMac11,1 */ |
66 | { USB_DEVICE(0x05ac, 0x8215) }, | |
67 | ||
9c047157 NI |
68 | /* Apple MacBookPro6,2 */ |
69 | { USB_DEVICE(0x05ac, 0x8218) }, | |
70 | ||
3e3ede7d EH |
71 | /* Apple MacBookAir3,1, MacBookAir3,2 */ |
72 | { USB_DEVICE(0x05ac, 0x821b) }, | |
73 | ||
cfeb4145 MH |
74 | /* AVM BlueFRITZ! USB v2.0 */ |
75 | { USB_DEVICE(0x057c, 0x3800) }, | |
76 | ||
77 | /* Bluetooth Ultraport Module from IBM */ | |
78 | { USB_DEVICE(0x04bf, 0x030a) }, | |
79 | ||
80 | /* ALPS Modules with non-standard id */ | |
81 | { USB_DEVICE(0x044e, 0x3001) }, | |
82 | { USB_DEVICE(0x044e, 0x3002) }, | |
83 | ||
84 | /* Ericsson with non-standard id */ | |
85 | { USB_DEVICE(0x0bdb, 0x1002) }, | |
86 | ||
87 | /* Canyon CN-BTU1 with HID interfaces */ | |
7a9d4020 | 88 | { USB_DEVICE(0x0c10, 0x0000) }, |
cfeb4145 | 89 | |
5e23b923 MH |
90 | { } /* Terminating entry */ |
91 | }; | |
92 | ||
93 | MODULE_DEVICE_TABLE(usb, btusb_table); | |
94 | ||
95 | static struct usb_device_id blacklist_table[] = { | |
cfeb4145 MH |
96 | /* CSR BlueCore devices */ |
97 | { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR }, | |
98 | ||
99 | /* Broadcom BCM2033 without firmware */ | |
100 | { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE }, | |
101 | ||
102 | /* Broadcom BCM2035 */ | |
7a9d4020 MH |
103 | { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU }, |
104 | { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU }, | |
105 | { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 }, | |
cfeb4145 MH |
106 | |
107 | /* Broadcom BCM2045 */ | |
7a9d4020 MH |
108 | { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU }, |
109 | { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU }, | |
bdbef3d6 | 110 | |
cfeb4145 | 111 | /* IBM/Lenovo ThinkPad with Broadcom chip */ |
7a9d4020 MH |
112 | { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU }, |
113 | { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU }, | |
cfeb4145 MH |
114 | |
115 | /* HP laptop with Broadcom chip */ | |
7a9d4020 | 116 | { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU }, |
cfeb4145 MH |
117 | |
118 | /* Dell laptop with Broadcom chip */ | |
7a9d4020 | 119 | { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU }, |
cfeb4145 | 120 | |
5ddd4a60 | 121 | /* Dell Wireless 370 and 410 devices */ |
7a9d4020 | 122 | { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU }, |
5ddd4a60 | 123 | { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU }, |
cfeb4145 | 124 | |
7a9d4020 MH |
125 | /* Belkin F8T012 and F8T013 devices */ |
126 | { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU }, | |
127 | { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU }, | |
cfeb4145 | 128 | |
5ddd4a60 MH |
129 | /* Asus WL-BTD202 device */ |
130 | { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU }, | |
131 | ||
132 | /* Kensington Bluetooth USB adapter */ | |
133 | { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU }, | |
134 | ||
cfeb4145 MH |
135 | /* RTX Telecom based adapters with buggy SCO support */ |
136 | { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC }, | |
137 | { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC }, | |
138 | ||
139 | /* CONWISE Technology based adapters with buggy SCO support */ | |
140 | { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC }, | |
141 | ||
cfeb4145 MH |
142 | /* Digianswer devices */ |
143 | { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER }, | |
144 | { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE }, | |
145 | ||
146 | /* CSR BlueCore Bluetooth Sniffer */ | |
147 | { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER }, | |
148 | ||
149 | /* Frontline ComProbe Bluetooth Sniffer */ | |
150 | { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER }, | |
151 | ||
5e23b923 MH |
152 | { } /* Terminating entry */ |
153 | }; | |
154 | ||
9bfa35fe MH |
155 | #define BTUSB_MAX_ISOC_FRAMES 10 |
156 | ||
5e23b923 MH |
157 | #define BTUSB_INTR_RUNNING 0 |
158 | #define BTUSB_BULK_RUNNING 1 | |
9bfa35fe | 159 | #define BTUSB_ISOC_RUNNING 2 |
7bee549e | 160 | #define BTUSB_SUSPENDING 3 |
08b8b6c4 | 161 | #define BTUSB_DID_ISO_RESUME 4 |
5e23b923 MH |
162 | |
163 | struct btusb_data { | |
164 | struct hci_dev *hdev; | |
165 | struct usb_device *udev; | |
5fbcd260 | 166 | struct usb_interface *intf; |
9bfa35fe | 167 | struct usb_interface *isoc; |
5e23b923 MH |
168 | |
169 | spinlock_t lock; | |
170 | ||
171 | unsigned long flags; | |
172 | ||
173 | struct work_struct work; | |
7bee549e | 174 | struct work_struct waker; |
5e23b923 MH |
175 | |
176 | struct usb_anchor tx_anchor; | |
177 | struct usb_anchor intr_anchor; | |
178 | struct usb_anchor bulk_anchor; | |
9bfa35fe | 179 | struct usb_anchor isoc_anchor; |
7bee549e ON |
180 | struct usb_anchor deferred; |
181 | int tx_in_flight; | |
182 | spinlock_t txlock; | |
5e23b923 MH |
183 | |
184 | struct usb_endpoint_descriptor *intr_ep; | |
185 | struct usb_endpoint_descriptor *bulk_tx_ep; | |
186 | struct usb_endpoint_descriptor *bulk_rx_ep; | |
9bfa35fe MH |
187 | struct usb_endpoint_descriptor *isoc_tx_ep; |
188 | struct usb_endpoint_descriptor *isoc_rx_ep; | |
189 | ||
7a9d4020 MH |
190 | __u8 cmdreq_type; |
191 | ||
43c2e57f | 192 | unsigned int sco_num; |
9bfa35fe | 193 | int isoc_altsetting; |
6a88adf2 | 194 | int suspend_count; |
5e23b923 MH |
195 | }; |
196 | ||
7bee549e ON |
197 | static int inc_tx(struct btusb_data *data) |
198 | { | |
199 | unsigned long flags; | |
200 | int rv; | |
201 | ||
202 | spin_lock_irqsave(&data->txlock, flags); | |
203 | rv = test_bit(BTUSB_SUSPENDING, &data->flags); | |
204 | if (!rv) | |
205 | data->tx_in_flight++; | |
206 | spin_unlock_irqrestore(&data->txlock, flags); | |
207 | ||
208 | return rv; | |
209 | } | |
210 | ||
5e23b923 MH |
211 | static void btusb_intr_complete(struct urb *urb) |
212 | { | |
213 | struct hci_dev *hdev = urb->context; | |
214 | struct btusb_data *data = hdev->driver_data; | |
215 | int err; | |
216 | ||
217 | BT_DBG("%s urb %p status %d count %d", hdev->name, | |
218 | urb, urb->status, urb->actual_length); | |
219 | ||
220 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
221 | return; | |
222 | ||
223 | if (urb->status == 0) { | |
9bfa35fe MH |
224 | hdev->stat.byte_rx += urb->actual_length; |
225 | ||
5e23b923 MH |
226 | if (hci_recv_fragment(hdev, HCI_EVENT_PKT, |
227 | urb->transfer_buffer, | |
228 | urb->actual_length) < 0) { | |
229 | BT_ERR("%s corrupted event packet", hdev->name); | |
230 | hdev->stat.err_rx++; | |
231 | } | |
232 | } | |
233 | ||
234 | if (!test_bit(BTUSB_INTR_RUNNING, &data->flags)) | |
235 | return; | |
236 | ||
7bee549e | 237 | usb_mark_last_busy(data->udev); |
5e23b923 MH |
238 | usb_anchor_urb(urb, &data->intr_anchor); |
239 | ||
240 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
241 | if (err < 0) { | |
242 | BT_ERR("%s urb %p failed to resubmit (%d)", | |
243 | hdev->name, urb, -err); | |
244 | usb_unanchor_urb(urb); | |
245 | } | |
246 | } | |
247 | ||
2eda66f4 | 248 | static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags) |
5e23b923 MH |
249 | { |
250 | struct btusb_data *data = hdev->driver_data; | |
251 | struct urb *urb; | |
252 | unsigned char *buf; | |
253 | unsigned int pipe; | |
254 | int err, size; | |
255 | ||
256 | BT_DBG("%s", hdev->name); | |
257 | ||
9bfa35fe MH |
258 | if (!data->intr_ep) |
259 | return -ENODEV; | |
260 | ||
2eda66f4 | 261 | urb = usb_alloc_urb(0, mem_flags); |
5e23b923 MH |
262 | if (!urb) |
263 | return -ENOMEM; | |
264 | ||
265 | size = le16_to_cpu(data->intr_ep->wMaxPacketSize); | |
266 | ||
2eda66f4 | 267 | buf = kmalloc(size, mem_flags); |
5e23b923 MH |
268 | if (!buf) { |
269 | usb_free_urb(urb); | |
270 | return -ENOMEM; | |
271 | } | |
272 | ||
273 | pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress); | |
274 | ||
275 | usb_fill_int_urb(urb, data->udev, pipe, buf, size, | |
276 | btusb_intr_complete, hdev, | |
277 | data->intr_ep->bInterval); | |
278 | ||
279 | urb->transfer_flags |= URB_FREE_BUFFER; | |
280 | ||
281 | usb_anchor_urb(urb, &data->intr_anchor); | |
282 | ||
2eda66f4 | 283 | err = usb_submit_urb(urb, mem_flags); |
5e23b923 MH |
284 | if (err < 0) { |
285 | BT_ERR("%s urb %p submission failed (%d)", | |
286 | hdev->name, urb, -err); | |
287 | usb_unanchor_urb(urb); | |
5e23b923 MH |
288 | } |
289 | ||
290 | usb_free_urb(urb); | |
291 | ||
292 | return err; | |
293 | } | |
294 | ||
295 | static void btusb_bulk_complete(struct urb *urb) | |
296 | { | |
297 | struct hci_dev *hdev = urb->context; | |
298 | struct btusb_data *data = hdev->driver_data; | |
299 | int err; | |
300 | ||
301 | BT_DBG("%s urb %p status %d count %d", hdev->name, | |
302 | urb, urb->status, urb->actual_length); | |
303 | ||
304 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
305 | return; | |
306 | ||
307 | if (urb->status == 0) { | |
9bfa35fe MH |
308 | hdev->stat.byte_rx += urb->actual_length; |
309 | ||
5e23b923 MH |
310 | if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT, |
311 | urb->transfer_buffer, | |
312 | urb->actual_length) < 0) { | |
313 | BT_ERR("%s corrupted ACL packet", hdev->name); | |
314 | hdev->stat.err_rx++; | |
315 | } | |
316 | } | |
317 | ||
318 | if (!test_bit(BTUSB_BULK_RUNNING, &data->flags)) | |
319 | return; | |
320 | ||
321 | usb_anchor_urb(urb, &data->bulk_anchor); | |
652fd781 | 322 | usb_mark_last_busy(data->udev); |
5e23b923 MH |
323 | |
324 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
325 | if (err < 0) { | |
326 | BT_ERR("%s urb %p failed to resubmit (%d)", | |
327 | hdev->name, urb, -err); | |
328 | usb_unanchor_urb(urb); | |
329 | } | |
330 | } | |
331 | ||
2eda66f4 | 332 | static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags) |
5e23b923 MH |
333 | { |
334 | struct btusb_data *data = hdev->driver_data; | |
335 | struct urb *urb; | |
336 | unsigned char *buf; | |
337 | unsigned int pipe; | |
290ba200 | 338 | int err, size = HCI_MAX_FRAME_SIZE; |
5e23b923 MH |
339 | |
340 | BT_DBG("%s", hdev->name); | |
341 | ||
9bfa35fe MH |
342 | if (!data->bulk_rx_ep) |
343 | return -ENODEV; | |
344 | ||
2eda66f4 | 345 | urb = usb_alloc_urb(0, mem_flags); |
5e23b923 MH |
346 | if (!urb) |
347 | return -ENOMEM; | |
348 | ||
2eda66f4 | 349 | buf = kmalloc(size, mem_flags); |
5e23b923 MH |
350 | if (!buf) { |
351 | usb_free_urb(urb); | |
352 | return -ENOMEM; | |
353 | } | |
354 | ||
355 | pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress); | |
356 | ||
357 | usb_fill_bulk_urb(urb, data->udev, pipe, | |
358 | buf, size, btusb_bulk_complete, hdev); | |
359 | ||
360 | urb->transfer_flags |= URB_FREE_BUFFER; | |
361 | ||
7bee549e | 362 | usb_mark_last_busy(data->udev); |
5e23b923 MH |
363 | usb_anchor_urb(urb, &data->bulk_anchor); |
364 | ||
2eda66f4 | 365 | err = usb_submit_urb(urb, mem_flags); |
5e23b923 MH |
366 | if (err < 0) { |
367 | BT_ERR("%s urb %p submission failed (%d)", | |
368 | hdev->name, urb, -err); | |
369 | usb_unanchor_urb(urb); | |
5e23b923 MH |
370 | } |
371 | ||
372 | usb_free_urb(urb); | |
373 | ||
374 | return err; | |
375 | } | |
376 | ||
9bfa35fe MH |
377 | static void btusb_isoc_complete(struct urb *urb) |
378 | { | |
379 | struct hci_dev *hdev = urb->context; | |
380 | struct btusb_data *data = hdev->driver_data; | |
381 | int i, err; | |
382 | ||
383 | BT_DBG("%s urb %p status %d count %d", hdev->name, | |
384 | urb, urb->status, urb->actual_length); | |
385 | ||
386 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
387 | return; | |
388 | ||
389 | if (urb->status == 0) { | |
390 | for (i = 0; i < urb->number_of_packets; i++) { | |
391 | unsigned int offset = urb->iso_frame_desc[i].offset; | |
392 | unsigned int length = urb->iso_frame_desc[i].actual_length; | |
393 | ||
394 | if (urb->iso_frame_desc[i].status) | |
395 | continue; | |
396 | ||
397 | hdev->stat.byte_rx += length; | |
398 | ||
399 | if (hci_recv_fragment(hdev, HCI_SCODATA_PKT, | |
400 | urb->transfer_buffer + offset, | |
401 | length) < 0) { | |
402 | BT_ERR("%s corrupted SCO packet", hdev->name); | |
403 | hdev->stat.err_rx++; | |
404 | } | |
405 | } | |
406 | } | |
407 | ||
408 | if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags)) | |
409 | return; | |
410 | ||
411 | usb_anchor_urb(urb, &data->isoc_anchor); | |
412 | ||
413 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
414 | if (err < 0) { | |
415 | BT_ERR("%s urb %p failed to resubmit (%d)", | |
416 | hdev->name, urb, -err); | |
417 | usb_unanchor_urb(urb); | |
418 | } | |
419 | } | |
420 | ||
421 | static void inline __fill_isoc_descriptor(struct urb *urb, int len, int mtu) | |
422 | { | |
423 | int i, offset = 0; | |
424 | ||
425 | BT_DBG("len %d mtu %d", len, mtu); | |
426 | ||
427 | for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu; | |
428 | i++, offset += mtu, len -= mtu) { | |
429 | urb->iso_frame_desc[i].offset = offset; | |
430 | urb->iso_frame_desc[i].length = mtu; | |
431 | } | |
432 | ||
433 | if (len && i < BTUSB_MAX_ISOC_FRAMES) { | |
434 | urb->iso_frame_desc[i].offset = offset; | |
435 | urb->iso_frame_desc[i].length = len; | |
436 | i++; | |
437 | } | |
438 | ||
439 | urb->number_of_packets = i; | |
440 | } | |
441 | ||
2eda66f4 | 442 | static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags) |
9bfa35fe MH |
443 | { |
444 | struct btusb_data *data = hdev->driver_data; | |
445 | struct urb *urb; | |
446 | unsigned char *buf; | |
447 | unsigned int pipe; | |
448 | int err, size; | |
449 | ||
450 | BT_DBG("%s", hdev->name); | |
451 | ||
452 | if (!data->isoc_rx_ep) | |
453 | return -ENODEV; | |
454 | ||
2eda66f4 | 455 | urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags); |
9bfa35fe MH |
456 | if (!urb) |
457 | return -ENOMEM; | |
458 | ||
459 | size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) * | |
460 | BTUSB_MAX_ISOC_FRAMES; | |
461 | ||
2eda66f4 | 462 | buf = kmalloc(size, mem_flags); |
9bfa35fe MH |
463 | if (!buf) { |
464 | usb_free_urb(urb); | |
465 | return -ENOMEM; | |
466 | } | |
467 | ||
468 | pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress); | |
469 | ||
470 | urb->dev = data->udev; | |
471 | urb->pipe = pipe; | |
472 | urb->context = hdev; | |
473 | urb->complete = btusb_isoc_complete; | |
474 | urb->interval = data->isoc_rx_ep->bInterval; | |
475 | ||
476 | urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP; | |
477 | urb->transfer_buffer = buf; | |
478 | urb->transfer_buffer_length = size; | |
479 | ||
480 | __fill_isoc_descriptor(urb, size, | |
481 | le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize)); | |
482 | ||
483 | usb_anchor_urb(urb, &data->isoc_anchor); | |
484 | ||
2eda66f4 | 485 | err = usb_submit_urb(urb, mem_flags); |
9bfa35fe MH |
486 | if (err < 0) { |
487 | BT_ERR("%s urb %p submission failed (%d)", | |
488 | hdev->name, urb, -err); | |
489 | usb_unanchor_urb(urb); | |
9bfa35fe MH |
490 | } |
491 | ||
492 | usb_free_urb(urb); | |
493 | ||
494 | return err; | |
495 | } | |
496 | ||
5e23b923 | 497 | static void btusb_tx_complete(struct urb *urb) |
7bee549e ON |
498 | { |
499 | struct sk_buff *skb = urb->context; | |
500 | struct hci_dev *hdev = (struct hci_dev *) skb->dev; | |
501 | struct btusb_data *data = hdev->driver_data; | |
502 | ||
503 | BT_DBG("%s urb %p status %d count %d", hdev->name, | |
504 | urb, urb->status, urb->actual_length); | |
505 | ||
506 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
507 | goto done; | |
508 | ||
509 | if (!urb->status) | |
510 | hdev->stat.byte_tx += urb->transfer_buffer_length; | |
511 | else | |
512 | hdev->stat.err_tx++; | |
513 | ||
514 | done: | |
515 | spin_lock(&data->txlock); | |
516 | data->tx_in_flight--; | |
517 | spin_unlock(&data->txlock); | |
518 | ||
519 | kfree(urb->setup_packet); | |
520 | ||
521 | kfree_skb(skb); | |
522 | } | |
523 | ||
524 | static void btusb_isoc_tx_complete(struct urb *urb) | |
5e23b923 MH |
525 | { |
526 | struct sk_buff *skb = urb->context; | |
527 | struct hci_dev *hdev = (struct hci_dev *) skb->dev; | |
528 | ||
529 | BT_DBG("%s urb %p status %d count %d", hdev->name, | |
530 | urb, urb->status, urb->actual_length); | |
531 | ||
532 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
533 | goto done; | |
534 | ||
535 | if (!urb->status) | |
536 | hdev->stat.byte_tx += urb->transfer_buffer_length; | |
537 | else | |
538 | hdev->stat.err_tx++; | |
539 | ||
540 | done: | |
541 | kfree(urb->setup_packet); | |
542 | ||
543 | kfree_skb(skb); | |
544 | } | |
545 | ||
546 | static int btusb_open(struct hci_dev *hdev) | |
547 | { | |
548 | struct btusb_data *data = hdev->driver_data; | |
549 | int err; | |
550 | ||
551 | BT_DBG("%s", hdev->name); | |
552 | ||
7bee549e ON |
553 | err = usb_autopm_get_interface(data->intf); |
554 | if (err < 0) | |
555 | return err; | |
556 | ||
557 | data->intf->needs_remote_wakeup = 1; | |
558 | ||
5e23b923 | 559 | if (test_and_set_bit(HCI_RUNNING, &hdev->flags)) |
7bee549e | 560 | goto done; |
5e23b923 MH |
561 | |
562 | if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags)) | |
7bee549e | 563 | goto done; |
5e23b923 | 564 | |
2eda66f4 | 565 | err = btusb_submit_intr_urb(hdev, GFP_KERNEL); |
43c2e57f MH |
566 | if (err < 0) |
567 | goto failed; | |
568 | ||
569 | err = btusb_submit_bulk_urb(hdev, GFP_KERNEL); | |
5e23b923 | 570 | if (err < 0) { |
43c2e57f MH |
571 | usb_kill_anchored_urbs(&data->intr_anchor); |
572 | goto failed; | |
5e23b923 MH |
573 | } |
574 | ||
43c2e57f MH |
575 | set_bit(BTUSB_BULK_RUNNING, &data->flags); |
576 | btusb_submit_bulk_urb(hdev, GFP_KERNEL); | |
577 | ||
7bee549e ON |
578 | done: |
579 | usb_autopm_put_interface(data->intf); | |
43c2e57f MH |
580 | return 0; |
581 | ||
582 | failed: | |
583 | clear_bit(BTUSB_INTR_RUNNING, &data->flags); | |
584 | clear_bit(HCI_RUNNING, &hdev->flags); | |
7bee549e | 585 | usb_autopm_put_interface(data->intf); |
5e23b923 MH |
586 | return err; |
587 | } | |
588 | ||
7bee549e ON |
589 | static void btusb_stop_traffic(struct btusb_data *data) |
590 | { | |
591 | usb_kill_anchored_urbs(&data->intr_anchor); | |
592 | usb_kill_anchored_urbs(&data->bulk_anchor); | |
593 | usb_kill_anchored_urbs(&data->isoc_anchor); | |
594 | } | |
595 | ||
5e23b923 MH |
596 | static int btusb_close(struct hci_dev *hdev) |
597 | { | |
598 | struct btusb_data *data = hdev->driver_data; | |
7bee549e | 599 | int err; |
5e23b923 MH |
600 | |
601 | BT_DBG("%s", hdev->name); | |
602 | ||
603 | if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags)) | |
604 | return 0; | |
605 | ||
e8c3c3d2 | 606 | cancel_work_sync(&data->work); |
404291ac | 607 | cancel_work_sync(&data->waker); |
e8c3c3d2 | 608 | |
9bfa35fe | 609 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); |
5e23b923 | 610 | clear_bit(BTUSB_BULK_RUNNING, &data->flags); |
5e23b923 | 611 | clear_bit(BTUSB_INTR_RUNNING, &data->flags); |
7bee549e ON |
612 | |
613 | btusb_stop_traffic(data); | |
614 | err = usb_autopm_get_interface(data->intf); | |
615 | if (err < 0) | |
7b8e2c1d | 616 | goto failed; |
7bee549e ON |
617 | |
618 | data->intf->needs_remote_wakeup = 0; | |
619 | usb_autopm_put_interface(data->intf); | |
5e23b923 | 620 | |
7b8e2c1d ON |
621 | failed: |
622 | usb_scuttle_anchored_urbs(&data->deferred); | |
5e23b923 MH |
623 | return 0; |
624 | } | |
625 | ||
626 | static int btusb_flush(struct hci_dev *hdev) | |
627 | { | |
628 | struct btusb_data *data = hdev->driver_data; | |
629 | ||
630 | BT_DBG("%s", hdev->name); | |
631 | ||
632 | usb_kill_anchored_urbs(&data->tx_anchor); | |
633 | ||
634 | return 0; | |
635 | } | |
636 | ||
637 | static int btusb_send_frame(struct sk_buff *skb) | |
638 | { | |
639 | struct hci_dev *hdev = (struct hci_dev *) skb->dev; | |
640 | struct btusb_data *data = hdev->driver_data; | |
641 | struct usb_ctrlrequest *dr; | |
642 | struct urb *urb; | |
643 | unsigned int pipe; | |
644 | int err; | |
645 | ||
646 | BT_DBG("%s", hdev->name); | |
647 | ||
648 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
649 | return -EBUSY; | |
650 | ||
651 | switch (bt_cb(skb)->pkt_type) { | |
652 | case HCI_COMMAND_PKT: | |
653 | urb = usb_alloc_urb(0, GFP_ATOMIC); | |
654 | if (!urb) | |
655 | return -ENOMEM; | |
656 | ||
657 | dr = kmalloc(sizeof(*dr), GFP_ATOMIC); | |
658 | if (!dr) { | |
659 | usb_free_urb(urb); | |
660 | return -ENOMEM; | |
661 | } | |
662 | ||
7a9d4020 | 663 | dr->bRequestType = data->cmdreq_type; |
5e23b923 MH |
664 | dr->bRequest = 0; |
665 | dr->wIndex = 0; | |
666 | dr->wValue = 0; | |
667 | dr->wLength = __cpu_to_le16(skb->len); | |
668 | ||
669 | pipe = usb_sndctrlpipe(data->udev, 0x00); | |
670 | ||
671 | usb_fill_control_urb(urb, data->udev, pipe, (void *) dr, | |
672 | skb->data, skb->len, btusb_tx_complete, skb); | |
673 | ||
674 | hdev->stat.cmd_tx++; | |
675 | break; | |
676 | ||
677 | case HCI_ACLDATA_PKT: | |
9bfa35fe MH |
678 | if (!data->bulk_tx_ep || hdev->conn_hash.acl_num < 1) |
679 | return -ENODEV; | |
680 | ||
5e23b923 MH |
681 | urb = usb_alloc_urb(0, GFP_ATOMIC); |
682 | if (!urb) | |
683 | return -ENOMEM; | |
684 | ||
685 | pipe = usb_sndbulkpipe(data->udev, | |
686 | data->bulk_tx_ep->bEndpointAddress); | |
687 | ||
688 | usb_fill_bulk_urb(urb, data->udev, pipe, | |
689 | skb->data, skb->len, btusb_tx_complete, skb); | |
690 | ||
691 | hdev->stat.acl_tx++; | |
692 | break; | |
693 | ||
694 | case HCI_SCODATA_PKT: | |
9bfa35fe MH |
695 | if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1) |
696 | return -ENODEV; | |
697 | ||
698 | urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC); | |
699 | if (!urb) | |
700 | return -ENOMEM; | |
701 | ||
702 | pipe = usb_sndisocpipe(data->udev, | |
703 | data->isoc_tx_ep->bEndpointAddress); | |
704 | ||
705 | urb->dev = data->udev; | |
706 | urb->pipe = pipe; | |
707 | urb->context = skb; | |
7bee549e | 708 | urb->complete = btusb_isoc_tx_complete; |
9bfa35fe MH |
709 | urb->interval = data->isoc_tx_ep->bInterval; |
710 | ||
711 | urb->transfer_flags = URB_ISO_ASAP; | |
712 | urb->transfer_buffer = skb->data; | |
713 | urb->transfer_buffer_length = skb->len; | |
714 | ||
715 | __fill_isoc_descriptor(urb, skb->len, | |
716 | le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize)); | |
717 | ||
5e23b923 | 718 | hdev->stat.sco_tx++; |
7bee549e | 719 | goto skip_waking; |
5e23b923 MH |
720 | |
721 | default: | |
722 | return -EILSEQ; | |
723 | } | |
724 | ||
7bee549e ON |
725 | err = inc_tx(data); |
726 | if (err) { | |
727 | usb_anchor_urb(urb, &data->deferred); | |
728 | schedule_work(&data->waker); | |
729 | err = 0; | |
730 | goto done; | |
731 | } | |
732 | ||
733 | skip_waking: | |
5e23b923 MH |
734 | usb_anchor_urb(urb, &data->tx_anchor); |
735 | ||
736 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
737 | if (err < 0) { | |
738 | BT_ERR("%s urb %p submission failed", hdev->name, urb); | |
739 | kfree(urb->setup_packet); | |
740 | usb_unanchor_urb(urb); | |
7bee549e ON |
741 | } else { |
742 | usb_mark_last_busy(data->udev); | |
5e23b923 MH |
743 | } |
744 | ||
745 | usb_free_urb(urb); | |
746 | ||
7bee549e | 747 | done: |
5e23b923 MH |
748 | return err; |
749 | } | |
750 | ||
751 | static void btusb_destruct(struct hci_dev *hdev) | |
752 | { | |
753 | struct btusb_data *data = hdev->driver_data; | |
754 | ||
755 | BT_DBG("%s", hdev->name); | |
756 | ||
757 | kfree(data); | |
758 | } | |
759 | ||
760 | static void btusb_notify(struct hci_dev *hdev, unsigned int evt) | |
761 | { | |
762 | struct btusb_data *data = hdev->driver_data; | |
763 | ||
764 | BT_DBG("%s evt %d", hdev->name, evt); | |
765 | ||
43c2e57f MH |
766 | if (hdev->conn_hash.sco_num != data->sco_num) { |
767 | data->sco_num = hdev->conn_hash.sco_num; | |
768 | schedule_work(&data->work); | |
a780efa8 | 769 | } |
5e23b923 MH |
770 | } |
771 | ||
9bfa35fe MH |
772 | static int inline __set_isoc_interface(struct hci_dev *hdev, int altsetting) |
773 | { | |
774 | struct btusb_data *data = hdev->driver_data; | |
775 | struct usb_interface *intf = data->isoc; | |
776 | struct usb_endpoint_descriptor *ep_desc; | |
777 | int i, err; | |
778 | ||
779 | if (!data->isoc) | |
780 | return -ENODEV; | |
781 | ||
782 | err = usb_set_interface(data->udev, 1, altsetting); | |
783 | if (err < 0) { | |
784 | BT_ERR("%s setting interface failed (%d)", hdev->name, -err); | |
785 | return err; | |
786 | } | |
787 | ||
788 | data->isoc_altsetting = altsetting; | |
789 | ||
790 | data->isoc_tx_ep = NULL; | |
791 | data->isoc_rx_ep = NULL; | |
792 | ||
793 | for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { | |
794 | ep_desc = &intf->cur_altsetting->endpoint[i].desc; | |
795 | ||
796 | if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) { | |
797 | data->isoc_tx_ep = ep_desc; | |
798 | continue; | |
799 | } | |
800 | ||
801 | if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) { | |
802 | data->isoc_rx_ep = ep_desc; | |
803 | continue; | |
804 | } | |
805 | } | |
806 | ||
807 | if (!data->isoc_tx_ep || !data->isoc_rx_ep) { | |
808 | BT_ERR("%s invalid SCO descriptors", hdev->name); | |
809 | return -ENODEV; | |
810 | } | |
811 | ||
812 | return 0; | |
813 | } | |
814 | ||
5e23b923 MH |
815 | static void btusb_work(struct work_struct *work) |
816 | { | |
817 | struct btusb_data *data = container_of(work, struct btusb_data, work); | |
818 | struct hci_dev *hdev = data->hdev; | |
7bee549e | 819 | int err; |
5e23b923 | 820 | |
9bfa35fe | 821 | if (hdev->conn_hash.sco_num > 0) { |
08b8b6c4 | 822 | if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) { |
7bee549e ON |
823 | err = usb_autopm_get_interface(data->isoc); |
824 | if (err < 0) { | |
825 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); | |
826 | usb_kill_anchored_urbs(&data->isoc_anchor); | |
827 | return; | |
828 | } | |
829 | ||
08b8b6c4 | 830 | set_bit(BTUSB_DID_ISO_RESUME, &data->flags); |
7bee549e | 831 | } |
9bfa35fe MH |
832 | if (data->isoc_altsetting != 2) { |
833 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); | |
834 | usb_kill_anchored_urbs(&data->isoc_anchor); | |
835 | ||
836 | if (__set_isoc_interface(hdev, 2) < 0) | |
837 | return; | |
838 | } | |
839 | ||
840 | if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) { | |
2eda66f4 | 841 | if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0) |
9bfa35fe MH |
842 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); |
843 | else | |
2eda66f4 | 844 | btusb_submit_isoc_urb(hdev, GFP_KERNEL); |
9bfa35fe MH |
845 | } |
846 | } else { | |
847 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); | |
848 | usb_kill_anchored_urbs(&data->isoc_anchor); | |
849 | ||
850 | __set_isoc_interface(hdev, 0); | |
08b8b6c4 | 851 | if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags)) |
7bee549e | 852 | usb_autopm_put_interface(data->isoc); |
5e23b923 MH |
853 | } |
854 | } | |
855 | ||
7bee549e ON |
856 | static void btusb_waker(struct work_struct *work) |
857 | { | |
858 | struct btusb_data *data = container_of(work, struct btusb_data, waker); | |
859 | int err; | |
860 | ||
861 | err = usb_autopm_get_interface(data->intf); | |
862 | if (err < 0) | |
863 | return; | |
864 | ||
865 | usb_autopm_put_interface(data->intf); | |
866 | } | |
867 | ||
5e23b923 MH |
868 | static int btusb_probe(struct usb_interface *intf, |
869 | const struct usb_device_id *id) | |
870 | { | |
871 | struct usb_endpoint_descriptor *ep_desc; | |
872 | struct btusb_data *data; | |
873 | struct hci_dev *hdev; | |
874 | int i, err; | |
875 | ||
876 | BT_DBG("intf %p id %p", intf, id); | |
877 | ||
cfeb4145 | 878 | /* interface numbers are hardcoded in the spec */ |
5e23b923 MH |
879 | if (intf->cur_altsetting->desc.bInterfaceNumber != 0) |
880 | return -ENODEV; | |
881 | ||
882 | if (!id->driver_info) { | |
883 | const struct usb_device_id *match; | |
884 | match = usb_match_id(intf, blacklist_table); | |
885 | if (match) | |
886 | id = match; | |
887 | } | |
888 | ||
cfeb4145 MH |
889 | if (id->driver_info == BTUSB_IGNORE) |
890 | return -ENODEV; | |
891 | ||
892 | if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER) | |
893 | return -ENODEV; | |
894 | ||
895 | if (ignore_csr && id->driver_info & BTUSB_CSR) | |
896 | return -ENODEV; | |
897 | ||
898 | if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER) | |
899 | return -ENODEV; | |
900 | ||
5e23b923 MH |
901 | data = kzalloc(sizeof(*data), GFP_KERNEL); |
902 | if (!data) | |
903 | return -ENOMEM; | |
904 | ||
905 | for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { | |
906 | ep_desc = &intf->cur_altsetting->endpoint[i].desc; | |
907 | ||
908 | if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) { | |
909 | data->intr_ep = ep_desc; | |
910 | continue; | |
911 | } | |
912 | ||
913 | if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { | |
914 | data->bulk_tx_ep = ep_desc; | |
915 | continue; | |
916 | } | |
917 | ||
918 | if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { | |
919 | data->bulk_rx_ep = ep_desc; | |
920 | continue; | |
921 | } | |
922 | } | |
923 | ||
924 | if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) { | |
925 | kfree(data); | |
926 | return -ENODEV; | |
927 | } | |
928 | ||
7a9d4020 MH |
929 | data->cmdreq_type = USB_TYPE_CLASS; |
930 | ||
5e23b923 | 931 | data->udev = interface_to_usbdev(intf); |
5fbcd260 | 932 | data->intf = intf; |
5e23b923 MH |
933 | |
934 | spin_lock_init(&data->lock); | |
935 | ||
936 | INIT_WORK(&data->work, btusb_work); | |
7bee549e ON |
937 | INIT_WORK(&data->waker, btusb_waker); |
938 | spin_lock_init(&data->txlock); | |
5e23b923 MH |
939 | |
940 | init_usb_anchor(&data->tx_anchor); | |
941 | init_usb_anchor(&data->intr_anchor); | |
942 | init_usb_anchor(&data->bulk_anchor); | |
9bfa35fe | 943 | init_usb_anchor(&data->isoc_anchor); |
7bee549e | 944 | init_usb_anchor(&data->deferred); |
5e23b923 MH |
945 | |
946 | hdev = hci_alloc_dev(); | |
947 | if (!hdev) { | |
948 | kfree(data); | |
949 | return -ENOMEM; | |
950 | } | |
951 | ||
c13854ce | 952 | hdev->bus = HCI_USB; |
5e23b923 MH |
953 | hdev->driver_data = data; |
954 | ||
955 | data->hdev = hdev; | |
956 | ||
957 | SET_HCIDEV_DEV(hdev, &intf->dev); | |
958 | ||
959 | hdev->open = btusb_open; | |
960 | hdev->close = btusb_close; | |
961 | hdev->flush = btusb_flush; | |
962 | hdev->send = btusb_send_frame; | |
963 | hdev->destruct = btusb_destruct; | |
964 | hdev->notify = btusb_notify; | |
965 | ||
966 | hdev->owner = THIS_MODULE; | |
967 | ||
7a9d4020 | 968 | /* Interface numbers are hardcoded in the specification */ |
9bfa35fe MH |
969 | data->isoc = usb_ifnum_to_if(data->udev, 1); |
970 | ||
7a9d4020 MH |
971 | if (!reset) |
972 | set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks); | |
cfeb4145 MH |
973 | |
974 | if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) { | |
975 | if (!disable_scofix) | |
976 | set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks); | |
977 | } | |
978 | ||
9bfa35fe MH |
979 | if (id->driver_info & BTUSB_BROKEN_ISOC) |
980 | data->isoc = NULL; | |
981 | ||
7a9d4020 MH |
982 | if (id->driver_info & BTUSB_DIGIANSWER) { |
983 | data->cmdreq_type = USB_TYPE_VENDOR; | |
984 | set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks); | |
985 | } | |
986 | ||
987 | if (id->driver_info & BTUSB_CSR) { | |
988 | struct usb_device *udev = data->udev; | |
989 | ||
990 | /* Old firmware would otherwise execute USB reset */ | |
991 | if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117) | |
992 | set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks); | |
993 | } | |
994 | ||
cfeb4145 | 995 | if (id->driver_info & BTUSB_SNIFFER) { |
9bfa35fe | 996 | struct usb_device *udev = data->udev; |
cfeb4145 | 997 | |
7a9d4020 | 998 | /* New sniffer firmware has crippled HCI interface */ |
cfeb4145 MH |
999 | if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997) |
1000 | set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); | |
9bfa35fe MH |
1001 | |
1002 | data->isoc = NULL; | |
cfeb4145 MH |
1003 | } |
1004 | ||
1005 | if (id->driver_info & BTUSB_BCM92035) { | |
1006 | unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 }; | |
1007 | struct sk_buff *skb; | |
1008 | ||
1009 | skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL); | |
1010 | if (skb) { | |
1011 | memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd)); | |
1012 | skb_queue_tail(&hdev->driver_init, skb); | |
1013 | } | |
1014 | } | |
5e23b923 | 1015 | |
9bfa35fe MH |
1016 | if (data->isoc) { |
1017 | err = usb_driver_claim_interface(&btusb_driver, | |
5fbcd260 | 1018 | data->isoc, data); |
9bfa35fe MH |
1019 | if (err < 0) { |
1020 | hci_free_dev(hdev); | |
1021 | kfree(data); | |
1022 | return err; | |
1023 | } | |
1024 | } | |
1025 | ||
5e23b923 MH |
1026 | err = hci_register_dev(hdev); |
1027 | if (err < 0) { | |
1028 | hci_free_dev(hdev); | |
1029 | kfree(data); | |
1030 | return err; | |
1031 | } | |
1032 | ||
1033 | usb_set_intfdata(intf, data); | |
1034 | ||
556ea928 MG |
1035 | usb_enable_autosuspend(interface_to_usbdev(intf)); |
1036 | ||
5e23b923 MH |
1037 | return 0; |
1038 | } | |
1039 | ||
1040 | static void btusb_disconnect(struct usb_interface *intf) | |
1041 | { | |
1042 | struct btusb_data *data = usb_get_intfdata(intf); | |
1043 | struct hci_dev *hdev; | |
1044 | ||
1045 | BT_DBG("intf %p", intf); | |
1046 | ||
1047 | if (!data) | |
1048 | return; | |
1049 | ||
1050 | hdev = data->hdev; | |
1051 | ||
5fbcd260 | 1052 | __hci_dev_hold(hdev); |
9bfa35fe | 1053 | |
5fbcd260 MH |
1054 | usb_set_intfdata(data->intf, NULL); |
1055 | ||
1056 | if (data->isoc) | |
1057 | usb_set_intfdata(data->isoc, NULL); | |
5e23b923 MH |
1058 | |
1059 | hci_unregister_dev(hdev); | |
1060 | ||
5fbcd260 MH |
1061 | if (intf == data->isoc) |
1062 | usb_driver_release_interface(&btusb_driver, data->intf); | |
1063 | else if (data->isoc) | |
1064 | usb_driver_release_interface(&btusb_driver, data->isoc); | |
1065 | ||
1066 | __hci_dev_put(hdev); | |
1067 | ||
5e23b923 MH |
1068 | hci_free_dev(hdev); |
1069 | } | |
1070 | ||
7bee549e | 1071 | #ifdef CONFIG_PM |
6a88adf2 MH |
1072 | static int btusb_suspend(struct usb_interface *intf, pm_message_t message) |
1073 | { | |
1074 | struct btusb_data *data = usb_get_intfdata(intf); | |
1075 | ||
1076 | BT_DBG("intf %p", intf); | |
1077 | ||
1078 | if (data->suspend_count++) | |
1079 | return 0; | |
1080 | ||
7bee549e | 1081 | spin_lock_irq(&data->txlock); |
fb34d537 | 1082 | if (!((message.event & PM_EVENT_AUTO) && data->tx_in_flight)) { |
7bee549e ON |
1083 | set_bit(BTUSB_SUSPENDING, &data->flags); |
1084 | spin_unlock_irq(&data->txlock); | |
1085 | } else { | |
1086 | spin_unlock_irq(&data->txlock); | |
1087 | data->suspend_count--; | |
1088 | return -EBUSY; | |
1089 | } | |
1090 | ||
6a88adf2 MH |
1091 | cancel_work_sync(&data->work); |
1092 | ||
7bee549e | 1093 | btusb_stop_traffic(data); |
6a88adf2 MH |
1094 | usb_kill_anchored_urbs(&data->tx_anchor); |
1095 | ||
6a88adf2 MH |
1096 | return 0; |
1097 | } | |
1098 | ||
7bee549e ON |
1099 | static void play_deferred(struct btusb_data *data) |
1100 | { | |
1101 | struct urb *urb; | |
1102 | int err; | |
1103 | ||
1104 | while ((urb = usb_get_from_anchor(&data->deferred))) { | |
1105 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
1106 | if (err < 0) | |
1107 | break; | |
1108 | ||
1109 | data->tx_in_flight++; | |
1110 | } | |
1111 | usb_scuttle_anchored_urbs(&data->deferred); | |
1112 | } | |
1113 | ||
6a88adf2 MH |
1114 | static int btusb_resume(struct usb_interface *intf) |
1115 | { | |
1116 | struct btusb_data *data = usb_get_intfdata(intf); | |
1117 | struct hci_dev *hdev = data->hdev; | |
7bee549e | 1118 | int err = 0; |
6a88adf2 MH |
1119 | |
1120 | BT_DBG("intf %p", intf); | |
1121 | ||
1122 | if (--data->suspend_count) | |
1123 | return 0; | |
1124 | ||
1125 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
7bee549e | 1126 | goto done; |
6a88adf2 MH |
1127 | |
1128 | if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) { | |
1129 | err = btusb_submit_intr_urb(hdev, GFP_NOIO); | |
1130 | if (err < 0) { | |
1131 | clear_bit(BTUSB_INTR_RUNNING, &data->flags); | |
7bee549e | 1132 | goto failed; |
6a88adf2 MH |
1133 | } |
1134 | } | |
1135 | ||
1136 | if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) { | |
43c2e57f MH |
1137 | err = btusb_submit_bulk_urb(hdev, GFP_NOIO); |
1138 | if (err < 0) { | |
6a88adf2 | 1139 | clear_bit(BTUSB_BULK_RUNNING, &data->flags); |
7bee549e ON |
1140 | goto failed; |
1141 | } | |
1142 | ||
1143 | btusb_submit_bulk_urb(hdev, GFP_NOIO); | |
6a88adf2 MH |
1144 | } |
1145 | ||
1146 | if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) { | |
1147 | if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0) | |
1148 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); | |
1149 | else | |
1150 | btusb_submit_isoc_urb(hdev, GFP_NOIO); | |
1151 | } | |
1152 | ||
7bee549e ON |
1153 | spin_lock_irq(&data->txlock); |
1154 | play_deferred(data); | |
1155 | clear_bit(BTUSB_SUSPENDING, &data->flags); | |
1156 | spin_unlock_irq(&data->txlock); | |
1157 | schedule_work(&data->work); | |
1158 | ||
6a88adf2 | 1159 | return 0; |
7bee549e ON |
1160 | |
1161 | failed: | |
1162 | usb_scuttle_anchored_urbs(&data->deferred); | |
1163 | done: | |
1164 | spin_lock_irq(&data->txlock); | |
1165 | clear_bit(BTUSB_SUSPENDING, &data->flags); | |
1166 | spin_unlock_irq(&data->txlock); | |
1167 | ||
1168 | return err; | |
6a88adf2 | 1169 | } |
7bee549e | 1170 | #endif |
6a88adf2 | 1171 | |
5e23b923 MH |
1172 | static struct usb_driver btusb_driver = { |
1173 | .name = "btusb", | |
1174 | .probe = btusb_probe, | |
1175 | .disconnect = btusb_disconnect, | |
7bee549e | 1176 | #ifdef CONFIG_PM |
6a88adf2 MH |
1177 | .suspend = btusb_suspend, |
1178 | .resume = btusb_resume, | |
7bee549e | 1179 | #endif |
5e23b923 | 1180 | .id_table = btusb_table, |
7bee549e | 1181 | .supports_autosuspend = 1, |
5e23b923 MH |
1182 | }; |
1183 | ||
1184 | static int __init btusb_init(void) | |
1185 | { | |
1186 | BT_INFO("Generic Bluetooth USB driver ver %s", VERSION); | |
1187 | ||
1188 | return usb_register(&btusb_driver); | |
1189 | } | |
1190 | ||
1191 | static void __exit btusb_exit(void) | |
1192 | { | |
1193 | usb_deregister(&btusb_driver); | |
1194 | } | |
1195 | ||
1196 | module_init(btusb_init); | |
1197 | module_exit(btusb_exit); | |
1198 | ||
cfeb4145 MH |
1199 | module_param(ignore_dga, bool, 0644); |
1200 | MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001"); | |
1201 | ||
1202 | module_param(ignore_csr, bool, 0644); | |
1203 | MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001"); | |
1204 | ||
1205 | module_param(ignore_sniffer, bool, 0644); | |
1206 | MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002"); | |
1207 | ||
1208 | module_param(disable_scofix, bool, 0644); | |
1209 | MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size"); | |
1210 | ||
1211 | module_param(force_scofix, bool, 0644); | |
1212 | MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size"); | |
1213 | ||
1214 | module_param(reset, bool, 0644); | |
1215 | MODULE_PARM_DESC(reset, "Send HCI reset command on initialization"); | |
1216 | ||
5e23b923 MH |
1217 | MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); |
1218 | MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION); | |
1219 | MODULE_VERSION(VERSION); | |
1220 | MODULE_LICENSE("GPL"); |