Commit | Line | Data |
---|---|---|
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 | ||
38 | //#define CONFIG_BT_HCIBTUSB_DEBUG | |
39 | #ifndef CONFIG_BT_HCIBTUSB_DEBUG | |
40 | #undef BT_DBG | |
41 | #define BT_DBG(D...) | |
42 | #endif | |
43 | ||
9bfa35fe | 44 | #define VERSION "0.3" |
cfeb4145 MH |
45 | |
46 | static int ignore_dga; | |
47 | static int ignore_csr; | |
48 | static int ignore_sniffer; | |
49 | static int disable_scofix; | |
50 | static int force_scofix; | |
51 | static int reset; | |
52 | ||
53 | static struct usb_driver btusb_driver; | |
54 | ||
55 | #define BTUSB_IGNORE 0x01 | |
56 | #define BTUSB_RESET 0x02 | |
57 | #define BTUSB_DIGIANSWER 0x04 | |
58 | #define BTUSB_CSR 0x08 | |
59 | #define BTUSB_SNIFFER 0x10 | |
60 | #define BTUSB_BCM92035 0x20 | |
61 | #define BTUSB_BROKEN_ISOC 0x40 | |
62 | #define BTUSB_WRONG_SCO_MTU 0x80 | |
5e23b923 MH |
63 | |
64 | static struct usb_device_id btusb_table[] = { | |
65 | /* Generic Bluetooth USB device */ | |
66 | { USB_DEVICE_INFO(0xe0, 0x01, 0x01) }, | |
67 | ||
cfeb4145 MH |
68 | /* AVM BlueFRITZ! USB v2.0 */ |
69 | { USB_DEVICE(0x057c, 0x3800) }, | |
70 | ||
71 | /* Bluetooth Ultraport Module from IBM */ | |
72 | { USB_DEVICE(0x04bf, 0x030a) }, | |
73 | ||
74 | /* ALPS Modules with non-standard id */ | |
75 | { USB_DEVICE(0x044e, 0x3001) }, | |
76 | { USB_DEVICE(0x044e, 0x3002) }, | |
77 | ||
78 | /* Ericsson with non-standard id */ | |
79 | { USB_DEVICE(0x0bdb, 0x1002) }, | |
80 | ||
81 | /* Canyon CN-BTU1 with HID interfaces */ | |
82 | { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_RESET }, | |
83 | ||
5e23b923 MH |
84 | { } /* Terminating entry */ |
85 | }; | |
86 | ||
87 | MODULE_DEVICE_TABLE(usb, btusb_table); | |
88 | ||
89 | static struct usb_device_id blacklist_table[] = { | |
cfeb4145 MH |
90 | /* CSR BlueCore devices */ |
91 | { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR }, | |
92 | ||
93 | /* Broadcom BCM2033 without firmware */ | |
94 | { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE }, | |
95 | ||
96 | /* Broadcom BCM2035 */ | |
97 | { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_RESET | BTUSB_WRONG_SCO_MTU }, | |
98 | { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_RESET | BTUSB_WRONG_SCO_MTU }, | |
99 | ||
100 | /* Broadcom BCM2045 */ | |
101 | { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_RESET | BTUSB_WRONG_SCO_MTU }, | |
102 | { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_RESET | BTUSB_WRONG_SCO_MTU }, | |
103 | ||
104 | /* Broadcom BCM2046 */ | |
1305e9e7 | 105 | { USB_DEVICE(0x0a5c, 0x2146), .driver_info = BTUSB_RESET }, |
cfeb4145 MH |
106 | { USB_DEVICE(0x0a5c, 0x2151), .driver_info = BTUSB_RESET }, |
107 | ||
bdbef3d6 MH |
108 | /* Apple MacBook Pro with Broadcom chip */ |
109 | { USB_DEVICE(0x05ac, 0x820f), .driver_info = BTUSB_RESET }, | |
110 | ||
cfeb4145 MH |
111 | /* IBM/Lenovo ThinkPad with Broadcom chip */ |
112 | { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_RESET | BTUSB_WRONG_SCO_MTU }, | |
113 | { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_RESET | BTUSB_WRONG_SCO_MTU }, | |
114 | ||
115 | /* Targus ACB10US */ | |
116 | { USB_DEVICE(0x0a5c, 0x2100), .driver_info = BTUSB_RESET }, | |
4f62f6cb | 117 | { USB_DEVICE(0x0a5c, 0x2154), .driver_info = BTUSB_RESET }, |
cfeb4145 MH |
118 | |
119 | /* ANYCOM Bluetooth USB-200 and USB-250 */ | |
120 | { USB_DEVICE(0x0a5c, 0x2111), .driver_info = BTUSB_RESET }, | |
121 | ||
122 | /* HP laptop with Broadcom chip */ | |
123 | { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_RESET | BTUSB_WRONG_SCO_MTU }, | |
124 | ||
125 | /* Dell laptop with Broadcom chip */ | |
126 | { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_RESET | BTUSB_WRONG_SCO_MTU }, | |
127 | ||
128 | /* Dell Wireless 370 */ | |
129 | { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_RESET | BTUSB_WRONG_SCO_MTU }, | |
130 | ||
131 | /* Dell Wireless 410 */ | |
132 | { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_RESET | BTUSB_WRONG_SCO_MTU }, | |
133 | ||
134 | /* Microsoft Wireless Transceiver for Bluetooth 2.0 */ | |
135 | { USB_DEVICE(0x045e, 0x009c), .driver_info = BTUSB_RESET }, | |
136 | ||
137 | /* Kensington Bluetooth USB adapter */ | |
138 | { USB_DEVICE(0x047d, 0x105d), .driver_info = BTUSB_RESET }, | |
139 | { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_RESET | BTUSB_WRONG_SCO_MTU }, | |
140 | ||
141 | /* ISSC Bluetooth Adapter v3.1 */ | |
142 | { USB_DEVICE(0x1131, 0x1001), .driver_info = BTUSB_RESET }, | |
143 | ||
144 | /* RTX Telecom based adapters with buggy SCO support */ | |
145 | { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC }, | |
146 | { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC }, | |
147 | ||
148 | /* CONWISE Technology based adapters with buggy SCO support */ | |
149 | { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC }, | |
150 | ||
151 | /* Belkin F8T012 and F8T013 devices */ | |
152 | { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_RESET | BTUSB_WRONG_SCO_MTU }, | |
153 | { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_RESET | BTUSB_WRONG_SCO_MTU }, | |
154 | ||
4f62f6cb MH |
155 | /* Belkin F8T016 device */ |
156 | { USB_DEVICE(0x050d, 0x016a), .driver_info = BTUSB_RESET }, | |
157 | ||
cfeb4145 MH |
158 | /* Digianswer devices */ |
159 | { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER }, | |
160 | { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE }, | |
161 | ||
162 | /* CSR BlueCore Bluetooth Sniffer */ | |
163 | { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER }, | |
164 | ||
165 | /* Frontline ComProbe Bluetooth Sniffer */ | |
166 | { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER }, | |
167 | ||
5e23b923 MH |
168 | { } /* Terminating entry */ |
169 | }; | |
170 | ||
9bfa35fe MH |
171 | #define BTUSB_MAX_ISOC_FRAMES 10 |
172 | ||
5e23b923 MH |
173 | #define BTUSB_INTR_RUNNING 0 |
174 | #define BTUSB_BULK_RUNNING 1 | |
9bfa35fe | 175 | #define BTUSB_ISOC_RUNNING 2 |
5e23b923 MH |
176 | |
177 | struct btusb_data { | |
178 | struct hci_dev *hdev; | |
179 | struct usb_device *udev; | |
5fbcd260 | 180 | struct usb_interface *intf; |
9bfa35fe | 181 | struct usb_interface *isoc; |
5e23b923 MH |
182 | |
183 | spinlock_t lock; | |
184 | ||
185 | unsigned long flags; | |
186 | ||
187 | struct work_struct work; | |
188 | ||
189 | struct usb_anchor tx_anchor; | |
190 | struct usb_anchor intr_anchor; | |
191 | struct usb_anchor bulk_anchor; | |
9bfa35fe | 192 | struct usb_anchor isoc_anchor; |
5e23b923 MH |
193 | |
194 | struct usb_endpoint_descriptor *intr_ep; | |
195 | struct usb_endpoint_descriptor *bulk_tx_ep; | |
196 | struct usb_endpoint_descriptor *bulk_rx_ep; | |
9bfa35fe MH |
197 | struct usb_endpoint_descriptor *isoc_tx_ep; |
198 | struct usb_endpoint_descriptor *isoc_rx_ep; | |
199 | ||
200 | int isoc_altsetting; | |
5e23b923 MH |
201 | }; |
202 | ||
203 | static void btusb_intr_complete(struct urb *urb) | |
204 | { | |
205 | struct hci_dev *hdev = urb->context; | |
206 | struct btusb_data *data = hdev->driver_data; | |
207 | int err; | |
208 | ||
209 | BT_DBG("%s urb %p status %d count %d", hdev->name, | |
210 | urb, urb->status, urb->actual_length); | |
211 | ||
212 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
213 | return; | |
214 | ||
215 | if (urb->status == 0) { | |
9bfa35fe MH |
216 | hdev->stat.byte_rx += urb->actual_length; |
217 | ||
5e23b923 MH |
218 | if (hci_recv_fragment(hdev, HCI_EVENT_PKT, |
219 | urb->transfer_buffer, | |
220 | urb->actual_length) < 0) { | |
221 | BT_ERR("%s corrupted event packet", hdev->name); | |
222 | hdev->stat.err_rx++; | |
223 | } | |
224 | } | |
225 | ||
226 | if (!test_bit(BTUSB_INTR_RUNNING, &data->flags)) | |
227 | return; | |
228 | ||
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); | |
313 | ||
314 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
315 | if (err < 0) { | |
316 | BT_ERR("%s urb %p failed to resubmit (%d)", | |
317 | hdev->name, urb, -err); | |
318 | usb_unanchor_urb(urb); | |
319 | } | |
320 | } | |
321 | ||
2eda66f4 | 322 | static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags) |
5e23b923 MH |
323 | { |
324 | struct btusb_data *data = hdev->driver_data; | |
325 | struct urb *urb; | |
326 | unsigned char *buf; | |
327 | unsigned int pipe; | |
328 | int err, size; | |
329 | ||
330 | BT_DBG("%s", hdev->name); | |
331 | ||
9bfa35fe MH |
332 | if (!data->bulk_rx_ep) |
333 | return -ENODEV; | |
334 | ||
2eda66f4 | 335 | urb = usb_alloc_urb(0, mem_flags); |
5e23b923 MH |
336 | if (!urb) |
337 | return -ENOMEM; | |
338 | ||
339 | size = le16_to_cpu(data->bulk_rx_ep->wMaxPacketSize); | |
340 | ||
2eda66f4 | 341 | buf = kmalloc(size, mem_flags); |
5e23b923 MH |
342 | if (!buf) { |
343 | usb_free_urb(urb); | |
344 | return -ENOMEM; | |
345 | } | |
346 | ||
347 | pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress); | |
348 | ||
349 | usb_fill_bulk_urb(urb, data->udev, pipe, | |
350 | buf, size, btusb_bulk_complete, hdev); | |
351 | ||
352 | urb->transfer_flags |= URB_FREE_BUFFER; | |
353 | ||
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 MH |
488 | static void btusb_tx_complete(struct urb *urb) |
489 | { | |
490 | struct sk_buff *skb = urb->context; | |
491 | struct hci_dev *hdev = (struct hci_dev *) skb->dev; | |
492 | ||
493 | BT_DBG("%s urb %p status %d count %d", hdev->name, | |
494 | urb, urb->status, urb->actual_length); | |
495 | ||
496 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
497 | goto done; | |
498 | ||
499 | if (!urb->status) | |
500 | hdev->stat.byte_tx += urb->transfer_buffer_length; | |
501 | else | |
502 | hdev->stat.err_tx++; | |
503 | ||
504 | done: | |
505 | kfree(urb->setup_packet); | |
506 | ||
507 | kfree_skb(skb); | |
508 | } | |
509 | ||
510 | static int btusb_open(struct hci_dev *hdev) | |
511 | { | |
512 | struct btusb_data *data = hdev->driver_data; | |
513 | int err; | |
514 | ||
515 | BT_DBG("%s", hdev->name); | |
516 | ||
517 | if (test_and_set_bit(HCI_RUNNING, &hdev->flags)) | |
518 | return 0; | |
519 | ||
520 | if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags)) | |
521 | return 0; | |
522 | ||
2eda66f4 | 523 | err = btusb_submit_intr_urb(hdev, GFP_KERNEL); |
5e23b923 | 524 | if (err < 0) { |
e8c3c3d2 | 525 | clear_bit(BTUSB_INTR_RUNNING, &data->flags); |
5e23b923 MH |
526 | clear_bit(HCI_RUNNING, &hdev->flags); |
527 | } | |
528 | ||
529 | return err; | |
530 | } | |
531 | ||
532 | static int btusb_close(struct hci_dev *hdev) | |
533 | { | |
534 | struct btusb_data *data = hdev->driver_data; | |
535 | ||
536 | BT_DBG("%s", hdev->name); | |
537 | ||
538 | if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags)) | |
539 | return 0; | |
540 | ||
e8c3c3d2 MH |
541 | cancel_work_sync(&data->work); |
542 | ||
9bfa35fe | 543 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); |
e8c3c3d2 | 544 | usb_kill_anchored_urbs(&data->isoc_anchor); |
9bfa35fe | 545 | |
5e23b923 MH |
546 | clear_bit(BTUSB_BULK_RUNNING, &data->flags); |
547 | usb_kill_anchored_urbs(&data->bulk_anchor); | |
548 | ||
549 | clear_bit(BTUSB_INTR_RUNNING, &data->flags); | |
550 | usb_kill_anchored_urbs(&data->intr_anchor); | |
551 | ||
552 | return 0; | |
553 | } | |
554 | ||
555 | static int btusb_flush(struct hci_dev *hdev) | |
556 | { | |
557 | struct btusb_data *data = hdev->driver_data; | |
558 | ||
559 | BT_DBG("%s", hdev->name); | |
560 | ||
561 | usb_kill_anchored_urbs(&data->tx_anchor); | |
562 | ||
563 | return 0; | |
564 | } | |
565 | ||
566 | static int btusb_send_frame(struct sk_buff *skb) | |
567 | { | |
568 | struct hci_dev *hdev = (struct hci_dev *) skb->dev; | |
569 | struct btusb_data *data = hdev->driver_data; | |
570 | struct usb_ctrlrequest *dr; | |
571 | struct urb *urb; | |
572 | unsigned int pipe; | |
573 | int err; | |
574 | ||
575 | BT_DBG("%s", hdev->name); | |
576 | ||
577 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
578 | return -EBUSY; | |
579 | ||
580 | switch (bt_cb(skb)->pkt_type) { | |
581 | case HCI_COMMAND_PKT: | |
582 | urb = usb_alloc_urb(0, GFP_ATOMIC); | |
583 | if (!urb) | |
584 | return -ENOMEM; | |
585 | ||
586 | dr = kmalloc(sizeof(*dr), GFP_ATOMIC); | |
587 | if (!dr) { | |
588 | usb_free_urb(urb); | |
589 | return -ENOMEM; | |
590 | } | |
591 | ||
592 | dr->bRequestType = USB_TYPE_CLASS; | |
593 | dr->bRequest = 0; | |
594 | dr->wIndex = 0; | |
595 | dr->wValue = 0; | |
596 | dr->wLength = __cpu_to_le16(skb->len); | |
597 | ||
598 | pipe = usb_sndctrlpipe(data->udev, 0x00); | |
599 | ||
600 | usb_fill_control_urb(urb, data->udev, pipe, (void *) dr, | |
601 | skb->data, skb->len, btusb_tx_complete, skb); | |
602 | ||
603 | hdev->stat.cmd_tx++; | |
604 | break; | |
605 | ||
606 | case HCI_ACLDATA_PKT: | |
9bfa35fe MH |
607 | if (!data->bulk_tx_ep || hdev->conn_hash.acl_num < 1) |
608 | return -ENODEV; | |
609 | ||
5e23b923 MH |
610 | urb = usb_alloc_urb(0, GFP_ATOMIC); |
611 | if (!urb) | |
612 | return -ENOMEM; | |
613 | ||
614 | pipe = usb_sndbulkpipe(data->udev, | |
615 | data->bulk_tx_ep->bEndpointAddress); | |
616 | ||
617 | usb_fill_bulk_urb(urb, data->udev, pipe, | |
618 | skb->data, skb->len, btusb_tx_complete, skb); | |
619 | ||
620 | hdev->stat.acl_tx++; | |
621 | break; | |
622 | ||
623 | case HCI_SCODATA_PKT: | |
9bfa35fe MH |
624 | if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1) |
625 | return -ENODEV; | |
626 | ||
627 | urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC); | |
628 | if (!urb) | |
629 | return -ENOMEM; | |
630 | ||
631 | pipe = usb_sndisocpipe(data->udev, | |
632 | data->isoc_tx_ep->bEndpointAddress); | |
633 | ||
634 | urb->dev = data->udev; | |
635 | urb->pipe = pipe; | |
636 | urb->context = skb; | |
637 | urb->complete = btusb_tx_complete; | |
638 | urb->interval = data->isoc_tx_ep->bInterval; | |
639 | ||
640 | urb->transfer_flags = URB_ISO_ASAP; | |
641 | urb->transfer_buffer = skb->data; | |
642 | urb->transfer_buffer_length = skb->len; | |
643 | ||
644 | __fill_isoc_descriptor(urb, skb->len, | |
645 | le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize)); | |
646 | ||
5e23b923 | 647 | hdev->stat.sco_tx++; |
9bfa35fe | 648 | break; |
5e23b923 MH |
649 | |
650 | default: | |
651 | return -EILSEQ; | |
652 | } | |
653 | ||
654 | usb_anchor_urb(urb, &data->tx_anchor); | |
655 | ||
656 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
657 | if (err < 0) { | |
658 | BT_ERR("%s urb %p submission failed", hdev->name, urb); | |
659 | kfree(urb->setup_packet); | |
660 | usb_unanchor_urb(urb); | |
661 | } | |
662 | ||
663 | usb_free_urb(urb); | |
664 | ||
665 | return err; | |
666 | } | |
667 | ||
668 | static void btusb_destruct(struct hci_dev *hdev) | |
669 | { | |
670 | struct btusb_data *data = hdev->driver_data; | |
671 | ||
672 | BT_DBG("%s", hdev->name); | |
673 | ||
674 | kfree(data); | |
675 | } | |
676 | ||
677 | static void btusb_notify(struct hci_dev *hdev, unsigned int evt) | |
678 | { | |
679 | struct btusb_data *data = hdev->driver_data; | |
680 | ||
681 | BT_DBG("%s evt %d", hdev->name, evt); | |
682 | ||
a780efa8 MH |
683 | if (hdev->conn_hash.acl_num > 0) { |
684 | if (!test_and_set_bit(BTUSB_BULK_RUNNING, &data->flags)) { | |
685 | if (btusb_submit_bulk_urb(hdev, GFP_ATOMIC) < 0) | |
686 | clear_bit(BTUSB_BULK_RUNNING, &data->flags); | |
687 | else | |
688 | btusb_submit_bulk_urb(hdev, GFP_ATOMIC); | |
689 | } | |
690 | } else { | |
691 | clear_bit(BTUSB_BULK_RUNNING, &data->flags); | |
692 | usb_unlink_anchored_urbs(&data->bulk_anchor); | |
693 | } | |
694 | ||
695 | schedule_work(&data->work); | |
5e23b923 MH |
696 | } |
697 | ||
9bfa35fe MH |
698 | static int inline __set_isoc_interface(struct hci_dev *hdev, int altsetting) |
699 | { | |
700 | struct btusb_data *data = hdev->driver_data; | |
701 | struct usb_interface *intf = data->isoc; | |
702 | struct usb_endpoint_descriptor *ep_desc; | |
703 | int i, err; | |
704 | ||
705 | if (!data->isoc) | |
706 | return -ENODEV; | |
707 | ||
708 | err = usb_set_interface(data->udev, 1, altsetting); | |
709 | if (err < 0) { | |
710 | BT_ERR("%s setting interface failed (%d)", hdev->name, -err); | |
711 | return err; | |
712 | } | |
713 | ||
714 | data->isoc_altsetting = altsetting; | |
715 | ||
716 | data->isoc_tx_ep = NULL; | |
717 | data->isoc_rx_ep = NULL; | |
718 | ||
719 | for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { | |
720 | ep_desc = &intf->cur_altsetting->endpoint[i].desc; | |
721 | ||
722 | if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) { | |
723 | data->isoc_tx_ep = ep_desc; | |
724 | continue; | |
725 | } | |
726 | ||
727 | if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) { | |
728 | data->isoc_rx_ep = ep_desc; | |
729 | continue; | |
730 | } | |
731 | } | |
732 | ||
733 | if (!data->isoc_tx_ep || !data->isoc_rx_ep) { | |
734 | BT_ERR("%s invalid SCO descriptors", hdev->name); | |
735 | return -ENODEV; | |
736 | } | |
737 | ||
738 | return 0; | |
739 | } | |
740 | ||
5e23b923 MH |
741 | static void btusb_work(struct work_struct *work) |
742 | { | |
743 | struct btusb_data *data = container_of(work, struct btusb_data, work); | |
744 | struct hci_dev *hdev = data->hdev; | |
745 | ||
9bfa35fe MH |
746 | if (hdev->conn_hash.sco_num > 0) { |
747 | if (data->isoc_altsetting != 2) { | |
748 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); | |
749 | usb_kill_anchored_urbs(&data->isoc_anchor); | |
750 | ||
751 | if (__set_isoc_interface(hdev, 2) < 0) | |
752 | return; | |
753 | } | |
754 | ||
755 | if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) { | |
2eda66f4 | 756 | if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0) |
9bfa35fe MH |
757 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); |
758 | else | |
2eda66f4 | 759 | btusb_submit_isoc_urb(hdev, GFP_KERNEL); |
9bfa35fe MH |
760 | } |
761 | } else { | |
762 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); | |
763 | usb_kill_anchored_urbs(&data->isoc_anchor); | |
764 | ||
765 | __set_isoc_interface(hdev, 0); | |
5e23b923 MH |
766 | } |
767 | } | |
768 | ||
769 | static int btusb_probe(struct usb_interface *intf, | |
770 | const struct usb_device_id *id) | |
771 | { | |
772 | struct usb_endpoint_descriptor *ep_desc; | |
773 | struct btusb_data *data; | |
774 | struct hci_dev *hdev; | |
775 | int i, err; | |
776 | ||
777 | BT_DBG("intf %p id %p", intf, id); | |
778 | ||
cfeb4145 | 779 | /* interface numbers are hardcoded in the spec */ |
5e23b923 MH |
780 | if (intf->cur_altsetting->desc.bInterfaceNumber != 0) |
781 | return -ENODEV; | |
782 | ||
783 | if (!id->driver_info) { | |
784 | const struct usb_device_id *match; | |
785 | match = usb_match_id(intf, blacklist_table); | |
786 | if (match) | |
787 | id = match; | |
788 | } | |
789 | ||
cfeb4145 MH |
790 | if (id->driver_info == BTUSB_IGNORE) |
791 | return -ENODEV; | |
792 | ||
793 | if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER) | |
794 | return -ENODEV; | |
795 | ||
796 | if (ignore_csr && id->driver_info & BTUSB_CSR) | |
797 | return -ENODEV; | |
798 | ||
799 | if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER) | |
800 | return -ENODEV; | |
801 | ||
5e23b923 MH |
802 | data = kzalloc(sizeof(*data), GFP_KERNEL); |
803 | if (!data) | |
804 | return -ENOMEM; | |
805 | ||
806 | for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { | |
807 | ep_desc = &intf->cur_altsetting->endpoint[i].desc; | |
808 | ||
809 | if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) { | |
810 | data->intr_ep = ep_desc; | |
811 | continue; | |
812 | } | |
813 | ||
814 | if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { | |
815 | data->bulk_tx_ep = ep_desc; | |
816 | continue; | |
817 | } | |
818 | ||
819 | if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { | |
820 | data->bulk_rx_ep = ep_desc; | |
821 | continue; | |
822 | } | |
823 | } | |
824 | ||
825 | if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) { | |
826 | kfree(data); | |
827 | return -ENODEV; | |
828 | } | |
829 | ||
830 | data->udev = interface_to_usbdev(intf); | |
5fbcd260 | 831 | data->intf = intf; |
5e23b923 MH |
832 | |
833 | spin_lock_init(&data->lock); | |
834 | ||
835 | INIT_WORK(&data->work, btusb_work); | |
836 | ||
837 | init_usb_anchor(&data->tx_anchor); | |
838 | init_usb_anchor(&data->intr_anchor); | |
839 | init_usb_anchor(&data->bulk_anchor); | |
9bfa35fe | 840 | init_usb_anchor(&data->isoc_anchor); |
5e23b923 MH |
841 | |
842 | hdev = hci_alloc_dev(); | |
843 | if (!hdev) { | |
844 | kfree(data); | |
845 | return -ENOMEM; | |
846 | } | |
847 | ||
848 | hdev->type = HCI_USB; | |
849 | hdev->driver_data = data; | |
850 | ||
851 | data->hdev = hdev; | |
852 | ||
853 | SET_HCIDEV_DEV(hdev, &intf->dev); | |
854 | ||
855 | hdev->open = btusb_open; | |
856 | hdev->close = btusb_close; | |
857 | hdev->flush = btusb_flush; | |
858 | hdev->send = btusb_send_frame; | |
859 | hdev->destruct = btusb_destruct; | |
860 | hdev->notify = btusb_notify; | |
861 | ||
862 | hdev->owner = THIS_MODULE; | |
863 | ||
9bfa35fe MH |
864 | /* interface numbers are hardcoded in the spec */ |
865 | data->isoc = usb_ifnum_to_if(data->udev, 1); | |
866 | ||
cfeb4145 MH |
867 | if (reset || id->driver_info & BTUSB_RESET) |
868 | set_bit(HCI_QUIRK_RESET_ON_INIT, &hdev->quirks); | |
869 | ||
870 | if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) { | |
871 | if (!disable_scofix) | |
872 | set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks); | |
873 | } | |
874 | ||
9bfa35fe MH |
875 | if (id->driver_info & BTUSB_BROKEN_ISOC) |
876 | data->isoc = NULL; | |
877 | ||
cfeb4145 | 878 | if (id->driver_info & BTUSB_SNIFFER) { |
9bfa35fe | 879 | struct usb_device *udev = data->udev; |
cfeb4145 MH |
880 | |
881 | if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997) | |
882 | set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); | |
9bfa35fe MH |
883 | |
884 | data->isoc = NULL; | |
cfeb4145 MH |
885 | } |
886 | ||
887 | if (id->driver_info & BTUSB_BCM92035) { | |
888 | unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 }; | |
889 | struct sk_buff *skb; | |
890 | ||
891 | skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL); | |
892 | if (skb) { | |
893 | memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd)); | |
894 | skb_queue_tail(&hdev->driver_init, skb); | |
895 | } | |
896 | } | |
5e23b923 | 897 | |
9bfa35fe MH |
898 | if (data->isoc) { |
899 | err = usb_driver_claim_interface(&btusb_driver, | |
5fbcd260 | 900 | data->isoc, data); |
9bfa35fe MH |
901 | if (err < 0) { |
902 | hci_free_dev(hdev); | |
903 | kfree(data); | |
904 | return err; | |
905 | } | |
906 | } | |
907 | ||
5e23b923 MH |
908 | err = hci_register_dev(hdev); |
909 | if (err < 0) { | |
910 | hci_free_dev(hdev); | |
911 | kfree(data); | |
912 | return err; | |
913 | } | |
914 | ||
915 | usb_set_intfdata(intf, data); | |
916 | ||
917 | return 0; | |
918 | } | |
919 | ||
920 | static void btusb_disconnect(struct usb_interface *intf) | |
921 | { | |
922 | struct btusb_data *data = usb_get_intfdata(intf); | |
923 | struct hci_dev *hdev; | |
924 | ||
925 | BT_DBG("intf %p", intf); | |
926 | ||
927 | if (!data) | |
928 | return; | |
929 | ||
930 | hdev = data->hdev; | |
931 | ||
5fbcd260 | 932 | __hci_dev_hold(hdev); |
9bfa35fe | 933 | |
5fbcd260 MH |
934 | usb_set_intfdata(data->intf, NULL); |
935 | ||
936 | if (data->isoc) | |
937 | usb_set_intfdata(data->isoc, NULL); | |
5e23b923 MH |
938 | |
939 | hci_unregister_dev(hdev); | |
940 | ||
5fbcd260 MH |
941 | if (intf == data->isoc) |
942 | usb_driver_release_interface(&btusb_driver, data->intf); | |
943 | else if (data->isoc) | |
944 | usb_driver_release_interface(&btusb_driver, data->isoc); | |
945 | ||
946 | __hci_dev_put(hdev); | |
947 | ||
5e23b923 MH |
948 | hci_free_dev(hdev); |
949 | } | |
950 | ||
951 | static struct usb_driver btusb_driver = { | |
952 | .name = "btusb", | |
953 | .probe = btusb_probe, | |
954 | .disconnect = btusb_disconnect, | |
955 | .id_table = btusb_table, | |
956 | }; | |
957 | ||
958 | static int __init btusb_init(void) | |
959 | { | |
960 | BT_INFO("Generic Bluetooth USB driver ver %s", VERSION); | |
961 | ||
962 | return usb_register(&btusb_driver); | |
963 | } | |
964 | ||
965 | static void __exit btusb_exit(void) | |
966 | { | |
967 | usb_deregister(&btusb_driver); | |
968 | } | |
969 | ||
970 | module_init(btusb_init); | |
971 | module_exit(btusb_exit); | |
972 | ||
cfeb4145 MH |
973 | module_param(ignore_dga, bool, 0644); |
974 | MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001"); | |
975 | ||
976 | module_param(ignore_csr, bool, 0644); | |
977 | MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001"); | |
978 | ||
979 | module_param(ignore_sniffer, bool, 0644); | |
980 | MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002"); | |
981 | ||
982 | module_param(disable_scofix, bool, 0644); | |
983 | MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size"); | |
984 | ||
985 | module_param(force_scofix, bool, 0644); | |
986 | MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size"); | |
987 | ||
988 | module_param(reset, bool, 0644); | |
989 | MODULE_PARM_DESC(reset, "Send HCI reset command on initialization"); | |
990 | ||
5e23b923 MH |
991 | MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); |
992 | MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION); | |
993 | MODULE_VERSION(VERSION); | |
994 | MODULE_LICENSE("GPL"); |