]>
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 | ||
7a9d4020 | 38 | #define VERSION "0.4" |
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 | ||
cfeb4145 MH |
62 | /* AVM BlueFRITZ! USB v2.0 */ |
63 | { USB_DEVICE(0x057c, 0x3800) }, | |
64 | ||
65 | /* Bluetooth Ultraport Module from IBM */ | |
66 | { USB_DEVICE(0x04bf, 0x030a) }, | |
67 | ||
68 | /* ALPS Modules with non-standard id */ | |
69 | { USB_DEVICE(0x044e, 0x3001) }, | |
70 | { USB_DEVICE(0x044e, 0x3002) }, | |
71 | ||
72 | /* Ericsson with non-standard id */ | |
73 | { USB_DEVICE(0x0bdb, 0x1002) }, | |
74 | ||
75 | /* Canyon CN-BTU1 with HID interfaces */ | |
7a9d4020 | 76 | { USB_DEVICE(0x0c10, 0x0000) }, |
cfeb4145 | 77 | |
5e23b923 MH |
78 | { } /* Terminating entry */ |
79 | }; | |
80 | ||
81 | MODULE_DEVICE_TABLE(usb, btusb_table); | |
82 | ||
83 | static struct usb_device_id blacklist_table[] = { | |
cfeb4145 MH |
84 | /* CSR BlueCore devices */ |
85 | { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR }, | |
86 | ||
87 | /* Broadcom BCM2033 without firmware */ | |
88 | { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE }, | |
89 | ||
90 | /* Broadcom BCM2035 */ | |
7a9d4020 MH |
91 | { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU }, |
92 | { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU }, | |
93 | { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 }, | |
cfeb4145 MH |
94 | |
95 | /* Broadcom BCM2045 */ | |
7a9d4020 MH |
96 | { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU }, |
97 | { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU }, | |
bdbef3d6 | 98 | |
cfeb4145 | 99 | /* IBM/Lenovo ThinkPad with Broadcom chip */ |
7a9d4020 MH |
100 | { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU }, |
101 | { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU }, | |
cfeb4145 MH |
102 | |
103 | /* HP laptop with Broadcom chip */ | |
7a9d4020 | 104 | { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU }, |
cfeb4145 MH |
105 | |
106 | /* Dell laptop with Broadcom chip */ | |
7a9d4020 | 107 | { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU }, |
cfeb4145 | 108 | |
5ddd4a60 | 109 | /* Dell Wireless 370 and 410 devices */ |
7a9d4020 | 110 | { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU }, |
5ddd4a60 | 111 | { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU }, |
cfeb4145 | 112 | |
7a9d4020 MH |
113 | /* Belkin F8T012 and F8T013 devices */ |
114 | { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU }, | |
115 | { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU }, | |
cfeb4145 | 116 | |
5ddd4a60 MH |
117 | /* Asus WL-BTD202 device */ |
118 | { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU }, | |
119 | ||
120 | /* Kensington Bluetooth USB adapter */ | |
121 | { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU }, | |
122 | ||
cfeb4145 MH |
123 | /* RTX Telecom based adapters with buggy SCO support */ |
124 | { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC }, | |
125 | { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC }, | |
126 | ||
127 | /* CONWISE Technology based adapters with buggy SCO support */ | |
128 | { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC }, | |
129 | ||
cfeb4145 MH |
130 | /* Digianswer devices */ |
131 | { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER }, | |
132 | { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE }, | |
133 | ||
134 | /* CSR BlueCore Bluetooth Sniffer */ | |
135 | { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER }, | |
136 | ||
137 | /* Frontline ComProbe Bluetooth Sniffer */ | |
138 | { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER }, | |
139 | ||
5e23b923 MH |
140 | { } /* Terminating entry */ |
141 | }; | |
142 | ||
9bfa35fe MH |
143 | #define BTUSB_MAX_ISOC_FRAMES 10 |
144 | ||
5e23b923 MH |
145 | #define BTUSB_INTR_RUNNING 0 |
146 | #define BTUSB_BULK_RUNNING 1 | |
9bfa35fe | 147 | #define BTUSB_ISOC_RUNNING 2 |
5e23b923 MH |
148 | |
149 | struct btusb_data { | |
150 | struct hci_dev *hdev; | |
151 | struct usb_device *udev; | |
5fbcd260 | 152 | struct usb_interface *intf; |
9bfa35fe | 153 | struct usb_interface *isoc; |
5e23b923 MH |
154 | |
155 | spinlock_t lock; | |
156 | ||
157 | unsigned long flags; | |
158 | ||
159 | struct work_struct work; | |
160 | ||
161 | struct usb_anchor tx_anchor; | |
162 | struct usb_anchor intr_anchor; | |
163 | struct usb_anchor bulk_anchor; | |
9bfa35fe | 164 | struct usb_anchor isoc_anchor; |
5e23b923 MH |
165 | |
166 | struct usb_endpoint_descriptor *intr_ep; | |
167 | struct usb_endpoint_descriptor *bulk_tx_ep; | |
168 | struct usb_endpoint_descriptor *bulk_rx_ep; | |
9bfa35fe MH |
169 | struct usb_endpoint_descriptor *isoc_tx_ep; |
170 | struct usb_endpoint_descriptor *isoc_rx_ep; | |
171 | ||
7a9d4020 MH |
172 | __u8 cmdreq_type; |
173 | ||
9bfa35fe | 174 | int isoc_altsetting; |
6a88adf2 | 175 | int suspend_count; |
5e23b923 MH |
176 | }; |
177 | ||
178 | static void btusb_intr_complete(struct urb *urb) | |
179 | { | |
180 | struct hci_dev *hdev = urb->context; | |
181 | struct btusb_data *data = hdev->driver_data; | |
182 | int err; | |
183 | ||
184 | BT_DBG("%s urb %p status %d count %d", hdev->name, | |
185 | urb, urb->status, urb->actual_length); | |
186 | ||
187 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
188 | return; | |
189 | ||
190 | if (urb->status == 0) { | |
9bfa35fe MH |
191 | hdev->stat.byte_rx += urb->actual_length; |
192 | ||
5e23b923 MH |
193 | if (hci_recv_fragment(hdev, HCI_EVENT_PKT, |
194 | urb->transfer_buffer, | |
195 | urb->actual_length) < 0) { | |
196 | BT_ERR("%s corrupted event packet", hdev->name); | |
197 | hdev->stat.err_rx++; | |
198 | } | |
199 | } | |
200 | ||
201 | if (!test_bit(BTUSB_INTR_RUNNING, &data->flags)) | |
202 | return; | |
203 | ||
204 | usb_anchor_urb(urb, &data->intr_anchor); | |
205 | ||
206 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
207 | if (err < 0) { | |
208 | BT_ERR("%s urb %p failed to resubmit (%d)", | |
209 | hdev->name, urb, -err); | |
210 | usb_unanchor_urb(urb); | |
211 | } | |
212 | } | |
213 | ||
2eda66f4 | 214 | static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags) |
5e23b923 MH |
215 | { |
216 | struct btusb_data *data = hdev->driver_data; | |
217 | struct urb *urb; | |
218 | unsigned char *buf; | |
219 | unsigned int pipe; | |
220 | int err, size; | |
221 | ||
222 | BT_DBG("%s", hdev->name); | |
223 | ||
9bfa35fe MH |
224 | if (!data->intr_ep) |
225 | return -ENODEV; | |
226 | ||
2eda66f4 | 227 | urb = usb_alloc_urb(0, mem_flags); |
5e23b923 MH |
228 | if (!urb) |
229 | return -ENOMEM; | |
230 | ||
231 | size = le16_to_cpu(data->intr_ep->wMaxPacketSize); | |
232 | ||
2eda66f4 | 233 | buf = kmalloc(size, mem_flags); |
5e23b923 MH |
234 | if (!buf) { |
235 | usb_free_urb(urb); | |
236 | return -ENOMEM; | |
237 | } | |
238 | ||
239 | pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress); | |
240 | ||
241 | usb_fill_int_urb(urb, data->udev, pipe, buf, size, | |
242 | btusb_intr_complete, hdev, | |
243 | data->intr_ep->bInterval); | |
244 | ||
245 | urb->transfer_flags |= URB_FREE_BUFFER; | |
246 | ||
247 | usb_anchor_urb(urb, &data->intr_anchor); | |
248 | ||
2eda66f4 | 249 | err = usb_submit_urb(urb, mem_flags); |
5e23b923 MH |
250 | if (err < 0) { |
251 | BT_ERR("%s urb %p submission failed (%d)", | |
252 | hdev->name, urb, -err); | |
253 | usb_unanchor_urb(urb); | |
5e23b923 MH |
254 | } |
255 | ||
256 | usb_free_urb(urb); | |
257 | ||
258 | return err; | |
259 | } | |
260 | ||
261 | static void btusb_bulk_complete(struct urb *urb) | |
262 | { | |
263 | struct hci_dev *hdev = urb->context; | |
264 | struct btusb_data *data = hdev->driver_data; | |
265 | int err; | |
266 | ||
267 | BT_DBG("%s urb %p status %d count %d", hdev->name, | |
268 | urb, urb->status, urb->actual_length); | |
269 | ||
270 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
271 | return; | |
272 | ||
273 | if (urb->status == 0) { | |
9bfa35fe MH |
274 | hdev->stat.byte_rx += urb->actual_length; |
275 | ||
5e23b923 MH |
276 | if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT, |
277 | urb->transfer_buffer, | |
278 | urb->actual_length) < 0) { | |
279 | BT_ERR("%s corrupted ACL packet", hdev->name); | |
280 | hdev->stat.err_rx++; | |
281 | } | |
282 | } | |
283 | ||
284 | if (!test_bit(BTUSB_BULK_RUNNING, &data->flags)) | |
285 | return; | |
286 | ||
287 | usb_anchor_urb(urb, &data->bulk_anchor); | |
288 | ||
289 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
290 | if (err < 0) { | |
291 | BT_ERR("%s urb %p failed to resubmit (%d)", | |
292 | hdev->name, urb, -err); | |
293 | usb_unanchor_urb(urb); | |
294 | } | |
295 | } | |
296 | ||
2eda66f4 | 297 | static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags) |
5e23b923 MH |
298 | { |
299 | struct btusb_data *data = hdev->driver_data; | |
300 | struct urb *urb; | |
301 | unsigned char *buf; | |
302 | unsigned int pipe; | |
303 | int err, size; | |
304 | ||
305 | BT_DBG("%s", hdev->name); | |
306 | ||
9bfa35fe MH |
307 | if (!data->bulk_rx_ep) |
308 | return -ENODEV; | |
309 | ||
2eda66f4 | 310 | urb = usb_alloc_urb(0, mem_flags); |
5e23b923 MH |
311 | if (!urb) |
312 | return -ENOMEM; | |
313 | ||
314 | size = le16_to_cpu(data->bulk_rx_ep->wMaxPacketSize); | |
315 | ||
2eda66f4 | 316 | buf = kmalloc(size, mem_flags); |
5e23b923 MH |
317 | if (!buf) { |
318 | usb_free_urb(urb); | |
319 | return -ENOMEM; | |
320 | } | |
321 | ||
322 | pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress); | |
323 | ||
324 | usb_fill_bulk_urb(urb, data->udev, pipe, | |
325 | buf, size, btusb_bulk_complete, hdev); | |
326 | ||
327 | urb->transfer_flags |= URB_FREE_BUFFER; | |
328 | ||
329 | usb_anchor_urb(urb, &data->bulk_anchor); | |
330 | ||
2eda66f4 | 331 | err = usb_submit_urb(urb, mem_flags); |
5e23b923 MH |
332 | if (err < 0) { |
333 | BT_ERR("%s urb %p submission failed (%d)", | |
334 | hdev->name, urb, -err); | |
335 | usb_unanchor_urb(urb); | |
5e23b923 MH |
336 | } |
337 | ||
338 | usb_free_urb(urb); | |
339 | ||
340 | return err; | |
341 | } | |
342 | ||
9bfa35fe MH |
343 | static void btusb_isoc_complete(struct urb *urb) |
344 | { | |
345 | struct hci_dev *hdev = urb->context; | |
346 | struct btusb_data *data = hdev->driver_data; | |
347 | int i, err; | |
348 | ||
349 | BT_DBG("%s urb %p status %d count %d", hdev->name, | |
350 | urb, urb->status, urb->actual_length); | |
351 | ||
352 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
353 | return; | |
354 | ||
355 | if (urb->status == 0) { | |
356 | for (i = 0; i < urb->number_of_packets; i++) { | |
357 | unsigned int offset = urb->iso_frame_desc[i].offset; | |
358 | unsigned int length = urb->iso_frame_desc[i].actual_length; | |
359 | ||
360 | if (urb->iso_frame_desc[i].status) | |
361 | continue; | |
362 | ||
363 | hdev->stat.byte_rx += length; | |
364 | ||
365 | if (hci_recv_fragment(hdev, HCI_SCODATA_PKT, | |
366 | urb->transfer_buffer + offset, | |
367 | length) < 0) { | |
368 | BT_ERR("%s corrupted SCO packet", hdev->name); | |
369 | hdev->stat.err_rx++; | |
370 | } | |
371 | } | |
372 | } | |
373 | ||
374 | if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags)) | |
375 | return; | |
376 | ||
377 | usb_anchor_urb(urb, &data->isoc_anchor); | |
378 | ||
379 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
380 | if (err < 0) { | |
381 | BT_ERR("%s urb %p failed to resubmit (%d)", | |
382 | hdev->name, urb, -err); | |
383 | usb_unanchor_urb(urb); | |
384 | } | |
385 | } | |
386 | ||
387 | static void inline __fill_isoc_descriptor(struct urb *urb, int len, int mtu) | |
388 | { | |
389 | int i, offset = 0; | |
390 | ||
391 | BT_DBG("len %d mtu %d", len, mtu); | |
392 | ||
393 | for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu; | |
394 | i++, offset += mtu, len -= mtu) { | |
395 | urb->iso_frame_desc[i].offset = offset; | |
396 | urb->iso_frame_desc[i].length = mtu; | |
397 | } | |
398 | ||
399 | if (len && i < BTUSB_MAX_ISOC_FRAMES) { | |
400 | urb->iso_frame_desc[i].offset = offset; | |
401 | urb->iso_frame_desc[i].length = len; | |
402 | i++; | |
403 | } | |
404 | ||
405 | urb->number_of_packets = i; | |
406 | } | |
407 | ||
2eda66f4 | 408 | static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags) |
9bfa35fe MH |
409 | { |
410 | struct btusb_data *data = hdev->driver_data; | |
411 | struct urb *urb; | |
412 | unsigned char *buf; | |
413 | unsigned int pipe; | |
414 | int err, size; | |
415 | ||
416 | BT_DBG("%s", hdev->name); | |
417 | ||
418 | if (!data->isoc_rx_ep) | |
419 | return -ENODEV; | |
420 | ||
2eda66f4 | 421 | urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags); |
9bfa35fe MH |
422 | if (!urb) |
423 | return -ENOMEM; | |
424 | ||
425 | size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) * | |
426 | BTUSB_MAX_ISOC_FRAMES; | |
427 | ||
2eda66f4 | 428 | buf = kmalloc(size, mem_flags); |
9bfa35fe MH |
429 | if (!buf) { |
430 | usb_free_urb(urb); | |
431 | return -ENOMEM; | |
432 | } | |
433 | ||
434 | pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress); | |
435 | ||
436 | urb->dev = data->udev; | |
437 | urb->pipe = pipe; | |
438 | urb->context = hdev; | |
439 | urb->complete = btusb_isoc_complete; | |
440 | urb->interval = data->isoc_rx_ep->bInterval; | |
441 | ||
442 | urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP; | |
443 | urb->transfer_buffer = buf; | |
444 | urb->transfer_buffer_length = size; | |
445 | ||
446 | __fill_isoc_descriptor(urb, size, | |
447 | le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize)); | |
448 | ||
449 | usb_anchor_urb(urb, &data->isoc_anchor); | |
450 | ||
2eda66f4 | 451 | err = usb_submit_urb(urb, mem_flags); |
9bfa35fe MH |
452 | if (err < 0) { |
453 | BT_ERR("%s urb %p submission failed (%d)", | |
454 | hdev->name, urb, -err); | |
455 | usb_unanchor_urb(urb); | |
9bfa35fe MH |
456 | } |
457 | ||
458 | usb_free_urb(urb); | |
459 | ||
460 | return err; | |
461 | } | |
462 | ||
5e23b923 MH |
463 | static void btusb_tx_complete(struct urb *urb) |
464 | { | |
465 | struct sk_buff *skb = urb->context; | |
466 | struct hci_dev *hdev = (struct hci_dev *) skb->dev; | |
467 | ||
468 | BT_DBG("%s urb %p status %d count %d", hdev->name, | |
469 | urb, urb->status, urb->actual_length); | |
470 | ||
471 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
472 | goto done; | |
473 | ||
474 | if (!urb->status) | |
475 | hdev->stat.byte_tx += urb->transfer_buffer_length; | |
476 | else | |
477 | hdev->stat.err_tx++; | |
478 | ||
479 | done: | |
480 | kfree(urb->setup_packet); | |
481 | ||
482 | kfree_skb(skb); | |
483 | } | |
484 | ||
485 | static int btusb_open(struct hci_dev *hdev) | |
486 | { | |
487 | struct btusb_data *data = hdev->driver_data; | |
488 | int err; | |
489 | ||
490 | BT_DBG("%s", hdev->name); | |
491 | ||
492 | if (test_and_set_bit(HCI_RUNNING, &hdev->flags)) | |
493 | return 0; | |
494 | ||
495 | if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags)) | |
496 | return 0; | |
497 | ||
2eda66f4 | 498 | err = btusb_submit_intr_urb(hdev, GFP_KERNEL); |
5e23b923 | 499 | if (err < 0) { |
e8c3c3d2 | 500 | clear_bit(BTUSB_INTR_RUNNING, &data->flags); |
5e23b923 MH |
501 | clear_bit(HCI_RUNNING, &hdev->flags); |
502 | } | |
503 | ||
504 | return err; | |
505 | } | |
506 | ||
507 | static int btusb_close(struct hci_dev *hdev) | |
508 | { | |
509 | struct btusb_data *data = hdev->driver_data; | |
510 | ||
511 | BT_DBG("%s", hdev->name); | |
512 | ||
513 | if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags)) | |
514 | return 0; | |
515 | ||
e8c3c3d2 MH |
516 | cancel_work_sync(&data->work); |
517 | ||
9bfa35fe | 518 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); |
e8c3c3d2 | 519 | usb_kill_anchored_urbs(&data->isoc_anchor); |
9bfa35fe | 520 | |
5e23b923 MH |
521 | clear_bit(BTUSB_BULK_RUNNING, &data->flags); |
522 | usb_kill_anchored_urbs(&data->bulk_anchor); | |
523 | ||
524 | clear_bit(BTUSB_INTR_RUNNING, &data->flags); | |
525 | usb_kill_anchored_urbs(&data->intr_anchor); | |
526 | ||
527 | return 0; | |
528 | } | |
529 | ||
530 | static int btusb_flush(struct hci_dev *hdev) | |
531 | { | |
532 | struct btusb_data *data = hdev->driver_data; | |
533 | ||
534 | BT_DBG("%s", hdev->name); | |
535 | ||
536 | usb_kill_anchored_urbs(&data->tx_anchor); | |
537 | ||
538 | return 0; | |
539 | } | |
540 | ||
541 | static int btusb_send_frame(struct sk_buff *skb) | |
542 | { | |
543 | struct hci_dev *hdev = (struct hci_dev *) skb->dev; | |
544 | struct btusb_data *data = hdev->driver_data; | |
545 | struct usb_ctrlrequest *dr; | |
546 | struct urb *urb; | |
547 | unsigned int pipe; | |
548 | int err; | |
549 | ||
550 | BT_DBG("%s", hdev->name); | |
551 | ||
552 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
553 | return -EBUSY; | |
554 | ||
555 | switch (bt_cb(skb)->pkt_type) { | |
556 | case HCI_COMMAND_PKT: | |
557 | urb = usb_alloc_urb(0, GFP_ATOMIC); | |
558 | if (!urb) | |
559 | return -ENOMEM; | |
560 | ||
561 | dr = kmalloc(sizeof(*dr), GFP_ATOMIC); | |
562 | if (!dr) { | |
563 | usb_free_urb(urb); | |
564 | return -ENOMEM; | |
565 | } | |
566 | ||
7a9d4020 | 567 | dr->bRequestType = data->cmdreq_type; |
5e23b923 MH |
568 | dr->bRequest = 0; |
569 | dr->wIndex = 0; | |
570 | dr->wValue = 0; | |
571 | dr->wLength = __cpu_to_le16(skb->len); | |
572 | ||
573 | pipe = usb_sndctrlpipe(data->udev, 0x00); | |
574 | ||
575 | usb_fill_control_urb(urb, data->udev, pipe, (void *) dr, | |
576 | skb->data, skb->len, btusb_tx_complete, skb); | |
577 | ||
578 | hdev->stat.cmd_tx++; | |
579 | break; | |
580 | ||
581 | case HCI_ACLDATA_PKT: | |
9bfa35fe MH |
582 | if (!data->bulk_tx_ep || hdev->conn_hash.acl_num < 1) |
583 | return -ENODEV; | |
584 | ||
5e23b923 MH |
585 | urb = usb_alloc_urb(0, GFP_ATOMIC); |
586 | if (!urb) | |
587 | return -ENOMEM; | |
588 | ||
589 | pipe = usb_sndbulkpipe(data->udev, | |
590 | data->bulk_tx_ep->bEndpointAddress); | |
591 | ||
592 | usb_fill_bulk_urb(urb, data->udev, pipe, | |
593 | skb->data, skb->len, btusb_tx_complete, skb); | |
594 | ||
595 | hdev->stat.acl_tx++; | |
596 | break; | |
597 | ||
598 | case HCI_SCODATA_PKT: | |
9bfa35fe MH |
599 | if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1) |
600 | return -ENODEV; | |
601 | ||
602 | urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC); | |
603 | if (!urb) | |
604 | return -ENOMEM; | |
605 | ||
606 | pipe = usb_sndisocpipe(data->udev, | |
607 | data->isoc_tx_ep->bEndpointAddress); | |
608 | ||
609 | urb->dev = data->udev; | |
610 | urb->pipe = pipe; | |
611 | urb->context = skb; | |
612 | urb->complete = btusb_tx_complete; | |
613 | urb->interval = data->isoc_tx_ep->bInterval; | |
614 | ||
615 | urb->transfer_flags = URB_ISO_ASAP; | |
616 | urb->transfer_buffer = skb->data; | |
617 | urb->transfer_buffer_length = skb->len; | |
618 | ||
619 | __fill_isoc_descriptor(urb, skb->len, | |
620 | le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize)); | |
621 | ||
5e23b923 | 622 | hdev->stat.sco_tx++; |
9bfa35fe | 623 | break; |
5e23b923 MH |
624 | |
625 | default: | |
626 | return -EILSEQ; | |
627 | } | |
628 | ||
629 | usb_anchor_urb(urb, &data->tx_anchor); | |
630 | ||
631 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
632 | if (err < 0) { | |
633 | BT_ERR("%s urb %p submission failed", hdev->name, urb); | |
634 | kfree(urb->setup_packet); | |
635 | usb_unanchor_urb(urb); | |
636 | } | |
637 | ||
638 | usb_free_urb(urb); | |
639 | ||
640 | return err; | |
641 | } | |
642 | ||
643 | static void btusb_destruct(struct hci_dev *hdev) | |
644 | { | |
645 | struct btusb_data *data = hdev->driver_data; | |
646 | ||
647 | BT_DBG("%s", hdev->name); | |
648 | ||
649 | kfree(data); | |
650 | } | |
651 | ||
652 | static void btusb_notify(struct hci_dev *hdev, unsigned int evt) | |
653 | { | |
654 | struct btusb_data *data = hdev->driver_data; | |
655 | ||
656 | BT_DBG("%s evt %d", hdev->name, evt); | |
657 | ||
a780efa8 MH |
658 | if (hdev->conn_hash.acl_num > 0) { |
659 | if (!test_and_set_bit(BTUSB_BULK_RUNNING, &data->flags)) { | |
660 | if (btusb_submit_bulk_urb(hdev, GFP_ATOMIC) < 0) | |
661 | clear_bit(BTUSB_BULK_RUNNING, &data->flags); | |
662 | else | |
663 | btusb_submit_bulk_urb(hdev, GFP_ATOMIC); | |
664 | } | |
665 | } else { | |
666 | clear_bit(BTUSB_BULK_RUNNING, &data->flags); | |
667 | usb_unlink_anchored_urbs(&data->bulk_anchor); | |
668 | } | |
669 | ||
670 | schedule_work(&data->work); | |
5e23b923 MH |
671 | } |
672 | ||
9bfa35fe MH |
673 | static int inline __set_isoc_interface(struct hci_dev *hdev, int altsetting) |
674 | { | |
675 | struct btusb_data *data = hdev->driver_data; | |
676 | struct usb_interface *intf = data->isoc; | |
677 | struct usb_endpoint_descriptor *ep_desc; | |
678 | int i, err; | |
679 | ||
680 | if (!data->isoc) | |
681 | return -ENODEV; | |
682 | ||
683 | err = usb_set_interface(data->udev, 1, altsetting); | |
684 | if (err < 0) { | |
685 | BT_ERR("%s setting interface failed (%d)", hdev->name, -err); | |
686 | return err; | |
687 | } | |
688 | ||
689 | data->isoc_altsetting = altsetting; | |
690 | ||
691 | data->isoc_tx_ep = NULL; | |
692 | data->isoc_rx_ep = NULL; | |
693 | ||
694 | for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { | |
695 | ep_desc = &intf->cur_altsetting->endpoint[i].desc; | |
696 | ||
697 | if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) { | |
698 | data->isoc_tx_ep = ep_desc; | |
699 | continue; | |
700 | } | |
701 | ||
702 | if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) { | |
703 | data->isoc_rx_ep = ep_desc; | |
704 | continue; | |
705 | } | |
706 | } | |
707 | ||
708 | if (!data->isoc_tx_ep || !data->isoc_rx_ep) { | |
709 | BT_ERR("%s invalid SCO descriptors", hdev->name); | |
710 | return -ENODEV; | |
711 | } | |
712 | ||
713 | return 0; | |
714 | } | |
715 | ||
5e23b923 MH |
716 | static void btusb_work(struct work_struct *work) |
717 | { | |
718 | struct btusb_data *data = container_of(work, struct btusb_data, work); | |
719 | struct hci_dev *hdev = data->hdev; | |
720 | ||
9bfa35fe MH |
721 | if (hdev->conn_hash.sco_num > 0) { |
722 | if (data->isoc_altsetting != 2) { | |
723 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); | |
724 | usb_kill_anchored_urbs(&data->isoc_anchor); | |
725 | ||
726 | if (__set_isoc_interface(hdev, 2) < 0) | |
727 | return; | |
728 | } | |
729 | ||
730 | if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) { | |
2eda66f4 | 731 | if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0) |
9bfa35fe MH |
732 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); |
733 | else | |
2eda66f4 | 734 | btusb_submit_isoc_urb(hdev, GFP_KERNEL); |
9bfa35fe MH |
735 | } |
736 | } else { | |
737 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); | |
738 | usb_kill_anchored_urbs(&data->isoc_anchor); | |
739 | ||
740 | __set_isoc_interface(hdev, 0); | |
5e23b923 MH |
741 | } |
742 | } | |
743 | ||
744 | static int btusb_probe(struct usb_interface *intf, | |
745 | const struct usb_device_id *id) | |
746 | { | |
747 | struct usb_endpoint_descriptor *ep_desc; | |
748 | struct btusb_data *data; | |
749 | struct hci_dev *hdev; | |
750 | int i, err; | |
751 | ||
752 | BT_DBG("intf %p id %p", intf, id); | |
753 | ||
cfeb4145 | 754 | /* interface numbers are hardcoded in the spec */ |
5e23b923 MH |
755 | if (intf->cur_altsetting->desc.bInterfaceNumber != 0) |
756 | return -ENODEV; | |
757 | ||
758 | if (!id->driver_info) { | |
759 | const struct usb_device_id *match; | |
760 | match = usb_match_id(intf, blacklist_table); | |
761 | if (match) | |
762 | id = match; | |
763 | } | |
764 | ||
cfeb4145 MH |
765 | if (id->driver_info == BTUSB_IGNORE) |
766 | return -ENODEV; | |
767 | ||
768 | if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER) | |
769 | return -ENODEV; | |
770 | ||
771 | if (ignore_csr && id->driver_info & BTUSB_CSR) | |
772 | return -ENODEV; | |
773 | ||
774 | if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER) | |
775 | return -ENODEV; | |
776 | ||
5e23b923 MH |
777 | data = kzalloc(sizeof(*data), GFP_KERNEL); |
778 | if (!data) | |
779 | return -ENOMEM; | |
780 | ||
781 | for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { | |
782 | ep_desc = &intf->cur_altsetting->endpoint[i].desc; | |
783 | ||
784 | if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) { | |
785 | data->intr_ep = ep_desc; | |
786 | continue; | |
787 | } | |
788 | ||
789 | if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { | |
790 | data->bulk_tx_ep = ep_desc; | |
791 | continue; | |
792 | } | |
793 | ||
794 | if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { | |
795 | data->bulk_rx_ep = ep_desc; | |
796 | continue; | |
797 | } | |
798 | } | |
799 | ||
800 | if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) { | |
801 | kfree(data); | |
802 | return -ENODEV; | |
803 | } | |
804 | ||
7a9d4020 MH |
805 | data->cmdreq_type = USB_TYPE_CLASS; |
806 | ||
5e23b923 | 807 | data->udev = interface_to_usbdev(intf); |
5fbcd260 | 808 | data->intf = intf; |
5e23b923 MH |
809 | |
810 | spin_lock_init(&data->lock); | |
811 | ||
812 | INIT_WORK(&data->work, btusb_work); | |
813 | ||
814 | init_usb_anchor(&data->tx_anchor); | |
815 | init_usb_anchor(&data->intr_anchor); | |
816 | init_usb_anchor(&data->bulk_anchor); | |
9bfa35fe | 817 | init_usb_anchor(&data->isoc_anchor); |
5e23b923 MH |
818 | |
819 | hdev = hci_alloc_dev(); | |
820 | if (!hdev) { | |
821 | kfree(data); | |
822 | return -ENOMEM; | |
823 | } | |
824 | ||
825 | hdev->type = HCI_USB; | |
826 | hdev->driver_data = data; | |
827 | ||
828 | data->hdev = hdev; | |
829 | ||
830 | SET_HCIDEV_DEV(hdev, &intf->dev); | |
831 | ||
832 | hdev->open = btusb_open; | |
833 | hdev->close = btusb_close; | |
834 | hdev->flush = btusb_flush; | |
835 | hdev->send = btusb_send_frame; | |
836 | hdev->destruct = btusb_destruct; | |
837 | hdev->notify = btusb_notify; | |
838 | ||
839 | hdev->owner = THIS_MODULE; | |
840 | ||
7a9d4020 | 841 | /* Interface numbers are hardcoded in the specification */ |
9bfa35fe MH |
842 | data->isoc = usb_ifnum_to_if(data->udev, 1); |
843 | ||
7a9d4020 MH |
844 | if (!reset) |
845 | set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks); | |
cfeb4145 MH |
846 | |
847 | if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) { | |
848 | if (!disable_scofix) | |
849 | set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks); | |
850 | } | |
851 | ||
9bfa35fe MH |
852 | if (id->driver_info & BTUSB_BROKEN_ISOC) |
853 | data->isoc = NULL; | |
854 | ||
7a9d4020 MH |
855 | if (id->driver_info & BTUSB_DIGIANSWER) { |
856 | data->cmdreq_type = USB_TYPE_VENDOR; | |
857 | set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks); | |
858 | } | |
859 | ||
860 | if (id->driver_info & BTUSB_CSR) { | |
861 | struct usb_device *udev = data->udev; | |
862 | ||
863 | /* Old firmware would otherwise execute USB reset */ | |
864 | if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117) | |
865 | set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks); | |
866 | } | |
867 | ||
cfeb4145 | 868 | if (id->driver_info & BTUSB_SNIFFER) { |
9bfa35fe | 869 | struct usb_device *udev = data->udev; |
cfeb4145 | 870 | |
7a9d4020 | 871 | /* New sniffer firmware has crippled HCI interface */ |
cfeb4145 MH |
872 | if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997) |
873 | set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); | |
9bfa35fe MH |
874 | |
875 | data->isoc = NULL; | |
cfeb4145 MH |
876 | } |
877 | ||
878 | if (id->driver_info & BTUSB_BCM92035) { | |
879 | unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 }; | |
880 | struct sk_buff *skb; | |
881 | ||
882 | skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL); | |
883 | if (skb) { | |
884 | memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd)); | |
885 | skb_queue_tail(&hdev->driver_init, skb); | |
886 | } | |
887 | } | |
5e23b923 | 888 | |
9bfa35fe MH |
889 | if (data->isoc) { |
890 | err = usb_driver_claim_interface(&btusb_driver, | |
5fbcd260 | 891 | data->isoc, data); |
9bfa35fe MH |
892 | if (err < 0) { |
893 | hci_free_dev(hdev); | |
894 | kfree(data); | |
895 | return err; | |
896 | } | |
897 | } | |
898 | ||
5e23b923 MH |
899 | err = hci_register_dev(hdev); |
900 | if (err < 0) { | |
901 | hci_free_dev(hdev); | |
902 | kfree(data); | |
903 | return err; | |
904 | } | |
905 | ||
906 | usb_set_intfdata(intf, data); | |
907 | ||
908 | return 0; | |
909 | } | |
910 | ||
911 | static void btusb_disconnect(struct usb_interface *intf) | |
912 | { | |
913 | struct btusb_data *data = usb_get_intfdata(intf); | |
914 | struct hci_dev *hdev; | |
915 | ||
916 | BT_DBG("intf %p", intf); | |
917 | ||
918 | if (!data) | |
919 | return; | |
920 | ||
921 | hdev = data->hdev; | |
922 | ||
5fbcd260 | 923 | __hci_dev_hold(hdev); |
9bfa35fe | 924 | |
5fbcd260 MH |
925 | usb_set_intfdata(data->intf, NULL); |
926 | ||
927 | if (data->isoc) | |
928 | usb_set_intfdata(data->isoc, NULL); | |
5e23b923 MH |
929 | |
930 | hci_unregister_dev(hdev); | |
931 | ||
5fbcd260 MH |
932 | if (intf == data->isoc) |
933 | usb_driver_release_interface(&btusb_driver, data->intf); | |
934 | else if (data->isoc) | |
935 | usb_driver_release_interface(&btusb_driver, data->isoc); | |
936 | ||
937 | __hci_dev_put(hdev); | |
938 | ||
5e23b923 MH |
939 | hci_free_dev(hdev); |
940 | } | |
941 | ||
6a88adf2 MH |
942 | static int btusb_suspend(struct usb_interface *intf, pm_message_t message) |
943 | { | |
944 | struct btusb_data *data = usb_get_intfdata(intf); | |
945 | ||
946 | BT_DBG("intf %p", intf); | |
947 | ||
948 | if (data->suspend_count++) | |
949 | return 0; | |
950 | ||
951 | cancel_work_sync(&data->work); | |
952 | ||
953 | usb_kill_anchored_urbs(&data->tx_anchor); | |
954 | ||
955 | usb_kill_anchored_urbs(&data->isoc_anchor); | |
956 | usb_kill_anchored_urbs(&data->bulk_anchor); | |
957 | usb_kill_anchored_urbs(&data->intr_anchor); | |
958 | ||
959 | return 0; | |
960 | } | |
961 | ||
962 | static int btusb_resume(struct usb_interface *intf) | |
963 | { | |
964 | struct btusb_data *data = usb_get_intfdata(intf); | |
965 | struct hci_dev *hdev = data->hdev; | |
966 | int err; | |
967 | ||
968 | BT_DBG("intf %p", intf); | |
969 | ||
970 | if (--data->suspend_count) | |
971 | return 0; | |
972 | ||
973 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
974 | return 0; | |
975 | ||
976 | if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) { | |
977 | err = btusb_submit_intr_urb(hdev, GFP_NOIO); | |
978 | if (err < 0) { | |
979 | clear_bit(BTUSB_INTR_RUNNING, &data->flags); | |
980 | return err; | |
981 | } | |
982 | } | |
983 | ||
984 | if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) { | |
985 | if (btusb_submit_bulk_urb(hdev, GFP_NOIO) < 0) | |
986 | clear_bit(BTUSB_BULK_RUNNING, &data->flags); | |
987 | else | |
988 | btusb_submit_bulk_urb(hdev, GFP_NOIO); | |
989 | } | |
990 | ||
991 | if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) { | |
992 | if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0) | |
993 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); | |
994 | else | |
995 | btusb_submit_isoc_urb(hdev, GFP_NOIO); | |
996 | } | |
997 | ||
998 | return 0; | |
999 | } | |
1000 | ||
5e23b923 MH |
1001 | static struct usb_driver btusb_driver = { |
1002 | .name = "btusb", | |
1003 | .probe = btusb_probe, | |
1004 | .disconnect = btusb_disconnect, | |
6a88adf2 MH |
1005 | .suspend = btusb_suspend, |
1006 | .resume = btusb_resume, | |
5e23b923 MH |
1007 | .id_table = btusb_table, |
1008 | }; | |
1009 | ||
1010 | static int __init btusb_init(void) | |
1011 | { | |
1012 | BT_INFO("Generic Bluetooth USB driver ver %s", VERSION); | |
1013 | ||
1014 | return usb_register(&btusb_driver); | |
1015 | } | |
1016 | ||
1017 | static void __exit btusb_exit(void) | |
1018 | { | |
1019 | usb_deregister(&btusb_driver); | |
1020 | } | |
1021 | ||
1022 | module_init(btusb_init); | |
1023 | module_exit(btusb_exit); | |
1024 | ||
cfeb4145 MH |
1025 | module_param(ignore_dga, bool, 0644); |
1026 | MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001"); | |
1027 | ||
1028 | module_param(ignore_csr, bool, 0644); | |
1029 | MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001"); | |
1030 | ||
1031 | module_param(ignore_sniffer, bool, 0644); | |
1032 | MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002"); | |
1033 | ||
1034 | module_param(disable_scofix, bool, 0644); | |
1035 | MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size"); | |
1036 | ||
1037 | module_param(force_scofix, bool, 0644); | |
1038 | MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size"); | |
1039 | ||
1040 | module_param(reset, bool, 0644); | |
1041 | MODULE_PARM_DESC(reset, "Send HCI reset command on initialization"); | |
1042 | ||
5e23b923 MH |
1043 | MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); |
1044 | MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION); | |
1045 | MODULE_VERSION(VERSION); | |
1046 | MODULE_LICENSE("GPL"); |