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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 | ||
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 */ | |
105 | { USB_DEVICE(0x0a5c, 0x2151), .driver_info = BTUSB_RESET }, | |
106 | ||
bdbef3d6 MH |
107 | /* Apple MacBook Pro with Broadcom chip */ |
108 | { USB_DEVICE(0x05ac, 0x820f), .driver_info = BTUSB_RESET }, | |
109 | ||
cfeb4145 MH |
110 | /* IBM/Lenovo ThinkPad with Broadcom chip */ |
111 | { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_RESET | BTUSB_WRONG_SCO_MTU }, | |
112 | { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_RESET | BTUSB_WRONG_SCO_MTU }, | |
113 | ||
114 | /* Targus ACB10US */ | |
115 | { USB_DEVICE(0x0a5c, 0x2100), .driver_info = BTUSB_RESET }, | |
116 | ||
117 | /* ANYCOM Bluetooth USB-200 and USB-250 */ | |
118 | { USB_DEVICE(0x0a5c, 0x2111), .driver_info = BTUSB_RESET }, | |
119 | ||
120 | /* HP laptop with Broadcom chip */ | |
121 | { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_RESET | BTUSB_WRONG_SCO_MTU }, | |
122 | ||
123 | /* Dell laptop with Broadcom chip */ | |
124 | { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_RESET | BTUSB_WRONG_SCO_MTU }, | |
125 | ||
126 | /* Dell Wireless 370 */ | |
127 | { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_RESET | BTUSB_WRONG_SCO_MTU }, | |
128 | ||
129 | /* Dell Wireless 410 */ | |
130 | { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_RESET | BTUSB_WRONG_SCO_MTU }, | |
131 | ||
132 | /* Microsoft Wireless Transceiver for Bluetooth 2.0 */ | |
133 | { USB_DEVICE(0x045e, 0x009c), .driver_info = BTUSB_RESET }, | |
134 | ||
135 | /* Kensington Bluetooth USB adapter */ | |
136 | { USB_DEVICE(0x047d, 0x105d), .driver_info = BTUSB_RESET }, | |
137 | { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_RESET | BTUSB_WRONG_SCO_MTU }, | |
138 | ||
139 | /* ISSC Bluetooth Adapter v3.1 */ | |
140 | { USB_DEVICE(0x1131, 0x1001), .driver_info = BTUSB_RESET }, | |
141 | ||
142 | /* RTX Telecom based adapters with buggy SCO support */ | |
143 | { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC }, | |
144 | { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC }, | |
145 | ||
146 | /* CONWISE Technology based adapters with buggy SCO support */ | |
147 | { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC }, | |
148 | ||
149 | /* Belkin F8T012 and F8T013 devices */ | |
150 | { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_RESET | BTUSB_WRONG_SCO_MTU }, | |
151 | { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_RESET | BTUSB_WRONG_SCO_MTU }, | |
152 | ||
153 | /* Digianswer devices */ | |
154 | { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER }, | |
155 | { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE }, | |
156 | ||
157 | /* CSR BlueCore Bluetooth Sniffer */ | |
158 | { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER }, | |
159 | ||
160 | /* Frontline ComProbe Bluetooth Sniffer */ | |
161 | { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER }, | |
162 | ||
5e23b923 MH |
163 | { } /* Terminating entry */ |
164 | }; | |
165 | ||
9bfa35fe MH |
166 | #define BTUSB_MAX_ISOC_FRAMES 10 |
167 | ||
5e23b923 MH |
168 | #define BTUSB_INTR_RUNNING 0 |
169 | #define BTUSB_BULK_RUNNING 1 | |
9bfa35fe | 170 | #define BTUSB_ISOC_RUNNING 2 |
5e23b923 MH |
171 | |
172 | struct btusb_data { | |
173 | struct hci_dev *hdev; | |
174 | struct usb_device *udev; | |
9bfa35fe | 175 | struct usb_interface *isoc; |
5e23b923 MH |
176 | |
177 | spinlock_t lock; | |
178 | ||
179 | unsigned long flags; | |
180 | ||
181 | struct work_struct work; | |
182 | ||
183 | struct usb_anchor tx_anchor; | |
184 | struct usb_anchor intr_anchor; | |
185 | struct usb_anchor bulk_anchor; | |
9bfa35fe | 186 | struct usb_anchor isoc_anchor; |
5e23b923 MH |
187 | |
188 | struct usb_endpoint_descriptor *intr_ep; | |
189 | struct usb_endpoint_descriptor *bulk_tx_ep; | |
190 | struct usb_endpoint_descriptor *bulk_rx_ep; | |
9bfa35fe MH |
191 | struct usb_endpoint_descriptor *isoc_tx_ep; |
192 | struct usb_endpoint_descriptor *isoc_rx_ep; | |
193 | ||
194 | int isoc_altsetting; | |
5e23b923 MH |
195 | }; |
196 | ||
197 | static void btusb_intr_complete(struct urb *urb) | |
198 | { | |
199 | struct hci_dev *hdev = urb->context; | |
200 | struct btusb_data *data = hdev->driver_data; | |
201 | int err; | |
202 | ||
203 | BT_DBG("%s urb %p status %d count %d", hdev->name, | |
204 | urb, urb->status, urb->actual_length); | |
205 | ||
206 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
207 | return; | |
208 | ||
209 | if (urb->status == 0) { | |
9bfa35fe MH |
210 | hdev->stat.byte_rx += urb->actual_length; |
211 | ||
5e23b923 MH |
212 | if (hci_recv_fragment(hdev, HCI_EVENT_PKT, |
213 | urb->transfer_buffer, | |
214 | urb->actual_length) < 0) { | |
215 | BT_ERR("%s corrupted event packet", hdev->name); | |
216 | hdev->stat.err_rx++; | |
217 | } | |
218 | } | |
219 | ||
220 | if (!test_bit(BTUSB_INTR_RUNNING, &data->flags)) | |
221 | return; | |
222 | ||
223 | usb_anchor_urb(urb, &data->intr_anchor); | |
224 | ||
225 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
226 | if (err < 0) { | |
227 | BT_ERR("%s urb %p failed to resubmit (%d)", | |
228 | hdev->name, urb, -err); | |
229 | usb_unanchor_urb(urb); | |
230 | } | |
231 | } | |
232 | ||
9bfa35fe | 233 | static int btusb_submit_intr_urb(struct hci_dev *hdev) |
5e23b923 MH |
234 | { |
235 | struct btusb_data *data = hdev->driver_data; | |
236 | struct urb *urb; | |
237 | unsigned char *buf; | |
238 | unsigned int pipe; | |
239 | int err, size; | |
240 | ||
241 | BT_DBG("%s", hdev->name); | |
242 | ||
9bfa35fe MH |
243 | if (!data->intr_ep) |
244 | return -ENODEV; | |
245 | ||
5e23b923 MH |
246 | urb = usb_alloc_urb(0, GFP_ATOMIC); |
247 | if (!urb) | |
248 | return -ENOMEM; | |
249 | ||
250 | size = le16_to_cpu(data->intr_ep->wMaxPacketSize); | |
251 | ||
252 | buf = kmalloc(size, GFP_ATOMIC); | |
253 | if (!buf) { | |
254 | usb_free_urb(urb); | |
255 | return -ENOMEM; | |
256 | } | |
257 | ||
258 | pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress); | |
259 | ||
260 | usb_fill_int_urb(urb, data->udev, pipe, buf, size, | |
261 | btusb_intr_complete, hdev, | |
262 | data->intr_ep->bInterval); | |
263 | ||
264 | urb->transfer_flags |= URB_FREE_BUFFER; | |
265 | ||
266 | usb_anchor_urb(urb, &data->intr_anchor); | |
267 | ||
268 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
269 | if (err < 0) { | |
270 | BT_ERR("%s urb %p submission failed (%d)", | |
271 | hdev->name, urb, -err); | |
272 | usb_unanchor_urb(urb); | |
273 | kfree(buf); | |
274 | } | |
275 | ||
276 | usb_free_urb(urb); | |
277 | ||
278 | return err; | |
279 | } | |
280 | ||
281 | static void btusb_bulk_complete(struct urb *urb) | |
282 | { | |
283 | struct hci_dev *hdev = urb->context; | |
284 | struct btusb_data *data = hdev->driver_data; | |
285 | int err; | |
286 | ||
287 | BT_DBG("%s urb %p status %d count %d", hdev->name, | |
288 | urb, urb->status, urb->actual_length); | |
289 | ||
290 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
291 | return; | |
292 | ||
293 | if (urb->status == 0) { | |
9bfa35fe MH |
294 | hdev->stat.byte_rx += urb->actual_length; |
295 | ||
5e23b923 MH |
296 | if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT, |
297 | urb->transfer_buffer, | |
298 | urb->actual_length) < 0) { | |
299 | BT_ERR("%s corrupted ACL packet", hdev->name); | |
300 | hdev->stat.err_rx++; | |
301 | } | |
302 | } | |
303 | ||
304 | if (!test_bit(BTUSB_BULK_RUNNING, &data->flags)) | |
305 | return; | |
306 | ||
307 | usb_anchor_urb(urb, &data->bulk_anchor); | |
308 | ||
309 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
310 | if (err < 0) { | |
311 | BT_ERR("%s urb %p failed to resubmit (%d)", | |
312 | hdev->name, urb, -err); | |
313 | usb_unanchor_urb(urb); | |
314 | } | |
315 | } | |
316 | ||
9bfa35fe | 317 | static int btusb_submit_bulk_urb(struct hci_dev *hdev) |
5e23b923 MH |
318 | { |
319 | struct btusb_data *data = hdev->driver_data; | |
320 | struct urb *urb; | |
321 | unsigned char *buf; | |
322 | unsigned int pipe; | |
323 | int err, size; | |
324 | ||
325 | BT_DBG("%s", hdev->name); | |
326 | ||
9bfa35fe MH |
327 | if (!data->bulk_rx_ep) |
328 | return -ENODEV; | |
329 | ||
5e23b923 MH |
330 | urb = usb_alloc_urb(0, GFP_KERNEL); |
331 | if (!urb) | |
332 | return -ENOMEM; | |
333 | ||
334 | size = le16_to_cpu(data->bulk_rx_ep->wMaxPacketSize); | |
335 | ||
336 | buf = kmalloc(size, GFP_KERNEL); | |
337 | if (!buf) { | |
338 | usb_free_urb(urb); | |
339 | return -ENOMEM; | |
340 | } | |
341 | ||
342 | pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress); | |
343 | ||
344 | usb_fill_bulk_urb(urb, data->udev, pipe, | |
345 | buf, size, btusb_bulk_complete, hdev); | |
346 | ||
347 | urb->transfer_flags |= URB_FREE_BUFFER; | |
348 | ||
349 | usb_anchor_urb(urb, &data->bulk_anchor); | |
350 | ||
351 | err = usb_submit_urb(urb, GFP_KERNEL); | |
352 | if (err < 0) { | |
353 | BT_ERR("%s urb %p submission failed (%d)", | |
354 | hdev->name, urb, -err); | |
355 | usb_unanchor_urb(urb); | |
356 | kfree(buf); | |
357 | } | |
358 | ||
359 | usb_free_urb(urb); | |
360 | ||
361 | return err; | |
362 | } | |
363 | ||
9bfa35fe MH |
364 | static void btusb_isoc_complete(struct urb *urb) |
365 | { | |
366 | struct hci_dev *hdev = urb->context; | |
367 | struct btusb_data *data = hdev->driver_data; | |
368 | int i, err; | |
369 | ||
370 | BT_DBG("%s urb %p status %d count %d", hdev->name, | |
371 | urb, urb->status, urb->actual_length); | |
372 | ||
373 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
374 | return; | |
375 | ||
376 | if (urb->status == 0) { | |
377 | for (i = 0; i < urb->number_of_packets; i++) { | |
378 | unsigned int offset = urb->iso_frame_desc[i].offset; | |
379 | unsigned int length = urb->iso_frame_desc[i].actual_length; | |
380 | ||
381 | if (urb->iso_frame_desc[i].status) | |
382 | continue; | |
383 | ||
384 | hdev->stat.byte_rx += length; | |
385 | ||
386 | if (hci_recv_fragment(hdev, HCI_SCODATA_PKT, | |
387 | urb->transfer_buffer + offset, | |
388 | length) < 0) { | |
389 | BT_ERR("%s corrupted SCO packet", hdev->name); | |
390 | hdev->stat.err_rx++; | |
391 | } | |
392 | } | |
393 | } | |
394 | ||
395 | if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags)) | |
396 | return; | |
397 | ||
398 | usb_anchor_urb(urb, &data->isoc_anchor); | |
399 | ||
400 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
401 | if (err < 0) { | |
402 | BT_ERR("%s urb %p failed to resubmit (%d)", | |
403 | hdev->name, urb, -err); | |
404 | usb_unanchor_urb(urb); | |
405 | } | |
406 | } | |
407 | ||
408 | static void inline __fill_isoc_descriptor(struct urb *urb, int len, int mtu) | |
409 | { | |
410 | int i, offset = 0; | |
411 | ||
412 | BT_DBG("len %d mtu %d", len, mtu); | |
413 | ||
414 | for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu; | |
415 | i++, offset += mtu, len -= mtu) { | |
416 | urb->iso_frame_desc[i].offset = offset; | |
417 | urb->iso_frame_desc[i].length = mtu; | |
418 | } | |
419 | ||
420 | if (len && i < BTUSB_MAX_ISOC_FRAMES) { | |
421 | urb->iso_frame_desc[i].offset = offset; | |
422 | urb->iso_frame_desc[i].length = len; | |
423 | i++; | |
424 | } | |
425 | ||
426 | urb->number_of_packets = i; | |
427 | } | |
428 | ||
429 | static int btusb_submit_isoc_urb(struct hci_dev *hdev) | |
430 | { | |
431 | struct btusb_data *data = hdev->driver_data; | |
432 | struct urb *urb; | |
433 | unsigned char *buf; | |
434 | unsigned int pipe; | |
435 | int err, size; | |
436 | ||
437 | BT_DBG("%s", hdev->name); | |
438 | ||
439 | if (!data->isoc_rx_ep) | |
440 | return -ENODEV; | |
441 | ||
442 | urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL); | |
443 | if (!urb) | |
444 | return -ENOMEM; | |
445 | ||
446 | size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) * | |
447 | BTUSB_MAX_ISOC_FRAMES; | |
448 | ||
449 | buf = kmalloc(size, GFP_KERNEL); | |
450 | if (!buf) { | |
451 | usb_free_urb(urb); | |
452 | return -ENOMEM; | |
453 | } | |
454 | ||
455 | pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress); | |
456 | ||
457 | urb->dev = data->udev; | |
458 | urb->pipe = pipe; | |
459 | urb->context = hdev; | |
460 | urb->complete = btusb_isoc_complete; | |
461 | urb->interval = data->isoc_rx_ep->bInterval; | |
462 | ||
463 | urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP; | |
464 | urb->transfer_buffer = buf; | |
465 | urb->transfer_buffer_length = size; | |
466 | ||
467 | __fill_isoc_descriptor(urb, size, | |
468 | le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize)); | |
469 | ||
470 | usb_anchor_urb(urb, &data->isoc_anchor); | |
471 | ||
472 | err = usb_submit_urb(urb, GFP_KERNEL); | |
473 | if (err < 0) { | |
474 | BT_ERR("%s urb %p submission failed (%d)", | |
475 | hdev->name, urb, -err); | |
476 | usb_unanchor_urb(urb); | |
477 | kfree(buf); | |
478 | } | |
479 | ||
480 | usb_free_urb(urb); | |
481 | ||
482 | return err; | |
483 | } | |
484 | ||
5e23b923 MH |
485 | static void btusb_tx_complete(struct urb *urb) |
486 | { | |
487 | struct sk_buff *skb = urb->context; | |
488 | struct hci_dev *hdev = (struct hci_dev *) skb->dev; | |
489 | ||
490 | BT_DBG("%s urb %p status %d count %d", hdev->name, | |
491 | urb, urb->status, urb->actual_length); | |
492 | ||
493 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
494 | goto done; | |
495 | ||
496 | if (!urb->status) | |
497 | hdev->stat.byte_tx += urb->transfer_buffer_length; | |
498 | else | |
499 | hdev->stat.err_tx++; | |
500 | ||
501 | done: | |
502 | kfree(urb->setup_packet); | |
503 | ||
504 | kfree_skb(skb); | |
505 | } | |
506 | ||
507 | static int btusb_open(struct hci_dev *hdev) | |
508 | { | |
509 | struct btusb_data *data = hdev->driver_data; | |
510 | int err; | |
511 | ||
512 | BT_DBG("%s", hdev->name); | |
513 | ||
514 | if (test_and_set_bit(HCI_RUNNING, &hdev->flags)) | |
515 | return 0; | |
516 | ||
517 | if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags)) | |
518 | return 0; | |
519 | ||
520 | err = btusb_submit_intr_urb(hdev); | |
521 | if (err < 0) { | |
522 | clear_bit(BTUSB_INTR_RUNNING, &hdev->flags); | |
523 | clear_bit(HCI_RUNNING, &hdev->flags); | |
524 | } | |
525 | ||
526 | return err; | |
527 | } | |
528 | ||
529 | static int btusb_close(struct hci_dev *hdev) | |
530 | { | |
531 | struct btusb_data *data = hdev->driver_data; | |
532 | ||
533 | BT_DBG("%s", hdev->name); | |
534 | ||
535 | if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags)) | |
536 | return 0; | |
537 | ||
9bfa35fe MH |
538 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); |
539 | usb_kill_anchored_urbs(&data->intr_anchor); | |
540 | ||
5e23b923 MH |
541 | clear_bit(BTUSB_BULK_RUNNING, &data->flags); |
542 | usb_kill_anchored_urbs(&data->bulk_anchor); | |
543 | ||
544 | clear_bit(BTUSB_INTR_RUNNING, &data->flags); | |
545 | usb_kill_anchored_urbs(&data->intr_anchor); | |
546 | ||
547 | return 0; | |
548 | } | |
549 | ||
550 | static int btusb_flush(struct hci_dev *hdev) | |
551 | { | |
552 | struct btusb_data *data = hdev->driver_data; | |
553 | ||
554 | BT_DBG("%s", hdev->name); | |
555 | ||
556 | usb_kill_anchored_urbs(&data->tx_anchor); | |
557 | ||
558 | return 0; | |
559 | } | |
560 | ||
561 | static int btusb_send_frame(struct sk_buff *skb) | |
562 | { | |
563 | struct hci_dev *hdev = (struct hci_dev *) skb->dev; | |
564 | struct btusb_data *data = hdev->driver_data; | |
565 | struct usb_ctrlrequest *dr; | |
566 | struct urb *urb; | |
567 | unsigned int pipe; | |
568 | int err; | |
569 | ||
570 | BT_DBG("%s", hdev->name); | |
571 | ||
572 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
573 | return -EBUSY; | |
574 | ||
575 | switch (bt_cb(skb)->pkt_type) { | |
576 | case HCI_COMMAND_PKT: | |
577 | urb = usb_alloc_urb(0, GFP_ATOMIC); | |
578 | if (!urb) | |
579 | return -ENOMEM; | |
580 | ||
581 | dr = kmalloc(sizeof(*dr), GFP_ATOMIC); | |
582 | if (!dr) { | |
583 | usb_free_urb(urb); | |
584 | return -ENOMEM; | |
585 | } | |
586 | ||
587 | dr->bRequestType = USB_TYPE_CLASS; | |
588 | dr->bRequest = 0; | |
589 | dr->wIndex = 0; | |
590 | dr->wValue = 0; | |
591 | dr->wLength = __cpu_to_le16(skb->len); | |
592 | ||
593 | pipe = usb_sndctrlpipe(data->udev, 0x00); | |
594 | ||
595 | usb_fill_control_urb(urb, data->udev, pipe, (void *) dr, | |
596 | skb->data, skb->len, btusb_tx_complete, skb); | |
597 | ||
598 | hdev->stat.cmd_tx++; | |
599 | break; | |
600 | ||
601 | case HCI_ACLDATA_PKT: | |
9bfa35fe MH |
602 | if (!data->bulk_tx_ep || hdev->conn_hash.acl_num < 1) |
603 | return -ENODEV; | |
604 | ||
5e23b923 MH |
605 | urb = usb_alloc_urb(0, GFP_ATOMIC); |
606 | if (!urb) | |
607 | return -ENOMEM; | |
608 | ||
609 | pipe = usb_sndbulkpipe(data->udev, | |
610 | data->bulk_tx_ep->bEndpointAddress); | |
611 | ||
612 | usb_fill_bulk_urb(urb, data->udev, pipe, | |
613 | skb->data, skb->len, btusb_tx_complete, skb); | |
614 | ||
615 | hdev->stat.acl_tx++; | |
616 | break; | |
617 | ||
618 | case HCI_SCODATA_PKT: | |
9bfa35fe MH |
619 | if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1) |
620 | return -ENODEV; | |
621 | ||
622 | urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC); | |
623 | if (!urb) | |
624 | return -ENOMEM; | |
625 | ||
626 | pipe = usb_sndisocpipe(data->udev, | |
627 | data->isoc_tx_ep->bEndpointAddress); | |
628 | ||
629 | urb->dev = data->udev; | |
630 | urb->pipe = pipe; | |
631 | urb->context = skb; | |
632 | urb->complete = btusb_tx_complete; | |
633 | urb->interval = data->isoc_tx_ep->bInterval; | |
634 | ||
635 | urb->transfer_flags = URB_ISO_ASAP; | |
636 | urb->transfer_buffer = skb->data; | |
637 | urb->transfer_buffer_length = skb->len; | |
638 | ||
639 | __fill_isoc_descriptor(urb, skb->len, | |
640 | le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize)); | |
641 | ||
5e23b923 | 642 | hdev->stat.sco_tx++; |
9bfa35fe | 643 | break; |
5e23b923 MH |
644 | |
645 | default: | |
646 | return -EILSEQ; | |
647 | } | |
648 | ||
649 | usb_anchor_urb(urb, &data->tx_anchor); | |
650 | ||
651 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
652 | if (err < 0) { | |
653 | BT_ERR("%s urb %p submission failed", hdev->name, urb); | |
654 | kfree(urb->setup_packet); | |
655 | usb_unanchor_urb(urb); | |
656 | } | |
657 | ||
658 | usb_free_urb(urb); | |
659 | ||
660 | return err; | |
661 | } | |
662 | ||
663 | static void btusb_destruct(struct hci_dev *hdev) | |
664 | { | |
665 | struct btusb_data *data = hdev->driver_data; | |
666 | ||
667 | BT_DBG("%s", hdev->name); | |
668 | ||
669 | kfree(data); | |
670 | } | |
671 | ||
672 | static void btusb_notify(struct hci_dev *hdev, unsigned int evt) | |
673 | { | |
674 | struct btusb_data *data = hdev->driver_data; | |
675 | ||
676 | BT_DBG("%s evt %d", hdev->name, evt); | |
677 | ||
678 | if (evt == HCI_NOTIFY_CONN_ADD || evt == HCI_NOTIFY_CONN_DEL) | |
679 | schedule_work(&data->work); | |
680 | } | |
681 | ||
9bfa35fe MH |
682 | static int inline __set_isoc_interface(struct hci_dev *hdev, int altsetting) |
683 | { | |
684 | struct btusb_data *data = hdev->driver_data; | |
685 | struct usb_interface *intf = data->isoc; | |
686 | struct usb_endpoint_descriptor *ep_desc; | |
687 | int i, err; | |
688 | ||
689 | if (!data->isoc) | |
690 | return -ENODEV; | |
691 | ||
692 | err = usb_set_interface(data->udev, 1, altsetting); | |
693 | if (err < 0) { | |
694 | BT_ERR("%s setting interface failed (%d)", hdev->name, -err); | |
695 | return err; | |
696 | } | |
697 | ||
698 | data->isoc_altsetting = altsetting; | |
699 | ||
700 | data->isoc_tx_ep = NULL; | |
701 | data->isoc_rx_ep = NULL; | |
702 | ||
703 | for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { | |
704 | ep_desc = &intf->cur_altsetting->endpoint[i].desc; | |
705 | ||
706 | if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) { | |
707 | data->isoc_tx_ep = ep_desc; | |
708 | continue; | |
709 | } | |
710 | ||
711 | if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) { | |
712 | data->isoc_rx_ep = ep_desc; | |
713 | continue; | |
714 | } | |
715 | } | |
716 | ||
717 | if (!data->isoc_tx_ep || !data->isoc_rx_ep) { | |
718 | BT_ERR("%s invalid SCO descriptors", hdev->name); | |
719 | return -ENODEV; | |
720 | } | |
721 | ||
722 | return 0; | |
723 | } | |
724 | ||
5e23b923 MH |
725 | static void btusb_work(struct work_struct *work) |
726 | { | |
727 | struct btusb_data *data = container_of(work, struct btusb_data, work); | |
728 | struct hci_dev *hdev = data->hdev; | |
729 | ||
9bfa35fe MH |
730 | if (hdev->conn_hash.acl_num > 0) { |
731 | if (!test_and_set_bit(BTUSB_BULK_RUNNING, &data->flags)) { | |
732 | if (btusb_submit_bulk_urb(hdev) < 0) | |
733 | clear_bit(BTUSB_BULK_RUNNING, &data->flags); | |
734 | else | |
735 | btusb_submit_bulk_urb(hdev); | |
736 | } | |
737 | } else { | |
5e23b923 MH |
738 | clear_bit(BTUSB_BULK_RUNNING, &data->flags); |
739 | usb_kill_anchored_urbs(&data->bulk_anchor); | |
5e23b923 MH |
740 | } |
741 | ||
9bfa35fe MH |
742 | if (hdev->conn_hash.sco_num > 0) { |
743 | if (data->isoc_altsetting != 2) { | |
744 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); | |
745 | usb_kill_anchored_urbs(&data->isoc_anchor); | |
746 | ||
747 | if (__set_isoc_interface(hdev, 2) < 0) | |
748 | return; | |
749 | } | |
750 | ||
751 | if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) { | |
752 | if (btusb_submit_isoc_urb(hdev) < 0) | |
753 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); | |
754 | else | |
755 | btusb_submit_isoc_urb(hdev); | |
756 | } | |
757 | } else { | |
758 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); | |
759 | usb_kill_anchored_urbs(&data->isoc_anchor); | |
760 | ||
761 | __set_isoc_interface(hdev, 0); | |
5e23b923 MH |
762 | } |
763 | } | |
764 | ||
765 | static int btusb_probe(struct usb_interface *intf, | |
766 | const struct usb_device_id *id) | |
767 | { | |
768 | struct usb_endpoint_descriptor *ep_desc; | |
769 | struct btusb_data *data; | |
770 | struct hci_dev *hdev; | |
771 | int i, err; | |
772 | ||
773 | BT_DBG("intf %p id %p", intf, id); | |
774 | ||
cfeb4145 | 775 | /* interface numbers are hardcoded in the spec */ |
5e23b923 MH |
776 | if (intf->cur_altsetting->desc.bInterfaceNumber != 0) |
777 | return -ENODEV; | |
778 | ||
779 | if (!id->driver_info) { | |
780 | const struct usb_device_id *match; | |
781 | match = usb_match_id(intf, blacklist_table); | |
782 | if (match) | |
783 | id = match; | |
784 | } | |
785 | ||
cfeb4145 MH |
786 | if (id->driver_info == BTUSB_IGNORE) |
787 | return -ENODEV; | |
788 | ||
789 | if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER) | |
790 | return -ENODEV; | |
791 | ||
792 | if (ignore_csr && id->driver_info & BTUSB_CSR) | |
793 | return -ENODEV; | |
794 | ||
795 | if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER) | |
796 | return -ENODEV; | |
797 | ||
5e23b923 MH |
798 | data = kzalloc(sizeof(*data), GFP_KERNEL); |
799 | if (!data) | |
800 | return -ENOMEM; | |
801 | ||
802 | for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { | |
803 | ep_desc = &intf->cur_altsetting->endpoint[i].desc; | |
804 | ||
805 | if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) { | |
806 | data->intr_ep = ep_desc; | |
807 | continue; | |
808 | } | |
809 | ||
810 | if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { | |
811 | data->bulk_tx_ep = ep_desc; | |
812 | continue; | |
813 | } | |
814 | ||
815 | if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { | |
816 | data->bulk_rx_ep = ep_desc; | |
817 | continue; | |
818 | } | |
819 | } | |
820 | ||
821 | if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) { | |
822 | kfree(data); | |
823 | return -ENODEV; | |
824 | } | |
825 | ||
826 | data->udev = interface_to_usbdev(intf); | |
827 | ||
828 | spin_lock_init(&data->lock); | |
829 | ||
830 | INIT_WORK(&data->work, btusb_work); | |
831 | ||
832 | init_usb_anchor(&data->tx_anchor); | |
833 | init_usb_anchor(&data->intr_anchor); | |
834 | init_usb_anchor(&data->bulk_anchor); | |
9bfa35fe | 835 | init_usb_anchor(&data->isoc_anchor); |
5e23b923 MH |
836 | |
837 | hdev = hci_alloc_dev(); | |
838 | if (!hdev) { | |
839 | kfree(data); | |
840 | return -ENOMEM; | |
841 | } | |
842 | ||
843 | hdev->type = HCI_USB; | |
844 | hdev->driver_data = data; | |
845 | ||
846 | data->hdev = hdev; | |
847 | ||
848 | SET_HCIDEV_DEV(hdev, &intf->dev); | |
849 | ||
850 | hdev->open = btusb_open; | |
851 | hdev->close = btusb_close; | |
852 | hdev->flush = btusb_flush; | |
853 | hdev->send = btusb_send_frame; | |
854 | hdev->destruct = btusb_destruct; | |
855 | hdev->notify = btusb_notify; | |
856 | ||
857 | hdev->owner = THIS_MODULE; | |
858 | ||
9bfa35fe MH |
859 | /* interface numbers are hardcoded in the spec */ |
860 | data->isoc = usb_ifnum_to_if(data->udev, 1); | |
861 | ||
cfeb4145 MH |
862 | if (reset || id->driver_info & BTUSB_RESET) |
863 | set_bit(HCI_QUIRK_RESET_ON_INIT, &hdev->quirks); | |
864 | ||
865 | if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) { | |
866 | if (!disable_scofix) | |
867 | set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks); | |
868 | } | |
869 | ||
9bfa35fe MH |
870 | if (id->driver_info & BTUSB_BROKEN_ISOC) |
871 | data->isoc = NULL; | |
872 | ||
cfeb4145 | 873 | if (id->driver_info & BTUSB_SNIFFER) { |
9bfa35fe | 874 | struct usb_device *udev = data->udev; |
cfeb4145 MH |
875 | |
876 | if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997) | |
877 | set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); | |
9bfa35fe MH |
878 | |
879 | data->isoc = NULL; | |
cfeb4145 MH |
880 | } |
881 | ||
882 | if (id->driver_info & BTUSB_BCM92035) { | |
883 | unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 }; | |
884 | struct sk_buff *skb; | |
885 | ||
886 | skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL); | |
887 | if (skb) { | |
888 | memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd)); | |
889 | skb_queue_tail(&hdev->driver_init, skb); | |
890 | } | |
891 | } | |
5e23b923 | 892 | |
9bfa35fe MH |
893 | if (data->isoc) { |
894 | err = usb_driver_claim_interface(&btusb_driver, | |
895 | data->isoc, NULL); | |
896 | if (err < 0) { | |
897 | hci_free_dev(hdev); | |
898 | kfree(data); | |
899 | return err; | |
900 | } | |
901 | } | |
902 | ||
5e23b923 MH |
903 | err = hci_register_dev(hdev); |
904 | if (err < 0) { | |
905 | hci_free_dev(hdev); | |
906 | kfree(data); | |
907 | return err; | |
908 | } | |
909 | ||
910 | usb_set_intfdata(intf, data); | |
911 | ||
912 | return 0; | |
913 | } | |
914 | ||
915 | static void btusb_disconnect(struct usb_interface *intf) | |
916 | { | |
917 | struct btusb_data *data = usb_get_intfdata(intf); | |
918 | struct hci_dev *hdev; | |
919 | ||
920 | BT_DBG("intf %p", intf); | |
921 | ||
922 | if (!data) | |
923 | return; | |
924 | ||
925 | hdev = data->hdev; | |
926 | ||
9bfa35fe MH |
927 | if (data->isoc) |
928 | usb_driver_release_interface(&btusb_driver, data->isoc); | |
929 | ||
5e23b923 MH |
930 | usb_set_intfdata(intf, NULL); |
931 | ||
932 | hci_unregister_dev(hdev); | |
933 | ||
934 | hci_free_dev(hdev); | |
935 | } | |
936 | ||
937 | static struct usb_driver btusb_driver = { | |
938 | .name = "btusb", | |
939 | .probe = btusb_probe, | |
940 | .disconnect = btusb_disconnect, | |
941 | .id_table = btusb_table, | |
942 | }; | |
943 | ||
944 | static int __init btusb_init(void) | |
945 | { | |
946 | BT_INFO("Generic Bluetooth USB driver ver %s", VERSION); | |
947 | ||
948 | return usb_register(&btusb_driver); | |
949 | } | |
950 | ||
951 | static void __exit btusb_exit(void) | |
952 | { | |
953 | usb_deregister(&btusb_driver); | |
954 | } | |
955 | ||
956 | module_init(btusb_init); | |
957 | module_exit(btusb_exit); | |
958 | ||
cfeb4145 MH |
959 | module_param(ignore_dga, bool, 0644); |
960 | MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001"); | |
961 | ||
962 | module_param(ignore_csr, bool, 0644); | |
963 | MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001"); | |
964 | ||
965 | module_param(ignore_sniffer, bool, 0644); | |
966 | MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002"); | |
967 | ||
968 | module_param(disable_scofix, bool, 0644); | |
969 | MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size"); | |
970 | ||
971 | module_param(force_scofix, bool, 0644); | |
972 | MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size"); | |
973 | ||
974 | module_param(reset, bool, 0644); | |
975 | MODULE_PARM_DESC(reset, "Send HCI reset command on initialization"); | |
976 | ||
5e23b923 MH |
977 | MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); |
978 | MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION); | |
979 | MODULE_VERSION(VERSION); | |
980 | MODULE_LICENSE("GPL"); |