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 | ||
43c2e57f | 38 | #define VERSION "0.5" |
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 | ||
43c2e57f | 174 | unsigned int sco_num; |
9bfa35fe | 175 | int isoc_altsetting; |
6a88adf2 | 176 | int suspend_count; |
5e23b923 MH |
177 | }; |
178 | ||
179 | static void btusb_intr_complete(struct urb *urb) | |
180 | { | |
181 | struct hci_dev *hdev = urb->context; | |
182 | struct btusb_data *data = hdev->driver_data; | |
183 | int err; | |
184 | ||
185 | BT_DBG("%s urb %p status %d count %d", hdev->name, | |
186 | urb, urb->status, urb->actual_length); | |
187 | ||
188 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
189 | return; | |
190 | ||
191 | if (urb->status == 0) { | |
9bfa35fe MH |
192 | hdev->stat.byte_rx += urb->actual_length; |
193 | ||
5e23b923 MH |
194 | if (hci_recv_fragment(hdev, HCI_EVENT_PKT, |
195 | urb->transfer_buffer, | |
196 | urb->actual_length) < 0) { | |
197 | BT_ERR("%s corrupted event packet", hdev->name); | |
198 | hdev->stat.err_rx++; | |
199 | } | |
200 | } | |
201 | ||
202 | if (!test_bit(BTUSB_INTR_RUNNING, &data->flags)) | |
203 | return; | |
204 | ||
205 | usb_anchor_urb(urb, &data->intr_anchor); | |
206 | ||
207 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
208 | if (err < 0) { | |
209 | BT_ERR("%s urb %p failed to resubmit (%d)", | |
210 | hdev->name, urb, -err); | |
211 | usb_unanchor_urb(urb); | |
212 | } | |
213 | } | |
214 | ||
2eda66f4 | 215 | static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags) |
5e23b923 MH |
216 | { |
217 | struct btusb_data *data = hdev->driver_data; | |
218 | struct urb *urb; | |
219 | unsigned char *buf; | |
220 | unsigned int pipe; | |
221 | int err, size; | |
222 | ||
223 | BT_DBG("%s", hdev->name); | |
224 | ||
9bfa35fe MH |
225 | if (!data->intr_ep) |
226 | return -ENODEV; | |
227 | ||
2eda66f4 | 228 | urb = usb_alloc_urb(0, mem_flags); |
5e23b923 MH |
229 | if (!urb) |
230 | return -ENOMEM; | |
231 | ||
232 | size = le16_to_cpu(data->intr_ep->wMaxPacketSize); | |
233 | ||
2eda66f4 | 234 | buf = kmalloc(size, mem_flags); |
5e23b923 MH |
235 | if (!buf) { |
236 | usb_free_urb(urb); | |
237 | return -ENOMEM; | |
238 | } | |
239 | ||
240 | pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress); | |
241 | ||
242 | usb_fill_int_urb(urb, data->udev, pipe, buf, size, | |
243 | btusb_intr_complete, hdev, | |
244 | data->intr_ep->bInterval); | |
245 | ||
246 | urb->transfer_flags |= URB_FREE_BUFFER; | |
247 | ||
248 | usb_anchor_urb(urb, &data->intr_anchor); | |
249 | ||
2eda66f4 | 250 | err = usb_submit_urb(urb, mem_flags); |
5e23b923 MH |
251 | if (err < 0) { |
252 | BT_ERR("%s urb %p submission failed (%d)", | |
253 | hdev->name, urb, -err); | |
254 | usb_unanchor_urb(urb); | |
5e23b923 MH |
255 | } |
256 | ||
257 | usb_free_urb(urb); | |
258 | ||
259 | return err; | |
260 | } | |
261 | ||
262 | static void btusb_bulk_complete(struct urb *urb) | |
263 | { | |
264 | struct hci_dev *hdev = urb->context; | |
265 | struct btusb_data *data = hdev->driver_data; | |
266 | int err; | |
267 | ||
268 | BT_DBG("%s urb %p status %d count %d", hdev->name, | |
269 | urb, urb->status, urb->actual_length); | |
270 | ||
271 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
272 | return; | |
273 | ||
274 | if (urb->status == 0) { | |
9bfa35fe MH |
275 | hdev->stat.byte_rx += urb->actual_length; |
276 | ||
5e23b923 MH |
277 | if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT, |
278 | urb->transfer_buffer, | |
279 | urb->actual_length) < 0) { | |
280 | BT_ERR("%s corrupted ACL packet", hdev->name); | |
281 | hdev->stat.err_rx++; | |
282 | } | |
283 | } | |
284 | ||
285 | if (!test_bit(BTUSB_BULK_RUNNING, &data->flags)) | |
286 | return; | |
287 | ||
288 | usb_anchor_urb(urb, &data->bulk_anchor); | |
289 | ||
290 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
291 | if (err < 0) { | |
292 | BT_ERR("%s urb %p failed to resubmit (%d)", | |
293 | hdev->name, urb, -err); | |
294 | usb_unanchor_urb(urb); | |
295 | } | |
296 | } | |
297 | ||
2eda66f4 | 298 | static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags) |
5e23b923 MH |
299 | { |
300 | struct btusb_data *data = hdev->driver_data; | |
301 | struct urb *urb; | |
302 | unsigned char *buf; | |
303 | unsigned int pipe; | |
304 | int err, size; | |
305 | ||
306 | BT_DBG("%s", hdev->name); | |
307 | ||
9bfa35fe MH |
308 | if (!data->bulk_rx_ep) |
309 | return -ENODEV; | |
310 | ||
2eda66f4 | 311 | urb = usb_alloc_urb(0, mem_flags); |
5e23b923 MH |
312 | if (!urb) |
313 | return -ENOMEM; | |
314 | ||
315 | size = le16_to_cpu(data->bulk_rx_ep->wMaxPacketSize); | |
316 | ||
2eda66f4 | 317 | buf = kmalloc(size, mem_flags); |
5e23b923 MH |
318 | if (!buf) { |
319 | usb_free_urb(urb); | |
320 | return -ENOMEM; | |
321 | } | |
322 | ||
323 | pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress); | |
324 | ||
325 | usb_fill_bulk_urb(urb, data->udev, pipe, | |
326 | buf, size, btusb_bulk_complete, hdev); | |
327 | ||
328 | urb->transfer_flags |= URB_FREE_BUFFER; | |
329 | ||
330 | usb_anchor_urb(urb, &data->bulk_anchor); | |
331 | ||
2eda66f4 | 332 | err = usb_submit_urb(urb, mem_flags); |
5e23b923 MH |
333 | if (err < 0) { |
334 | BT_ERR("%s urb %p submission failed (%d)", | |
335 | hdev->name, urb, -err); | |
336 | usb_unanchor_urb(urb); | |
5e23b923 MH |
337 | } |
338 | ||
339 | usb_free_urb(urb); | |
340 | ||
341 | return err; | |
342 | } | |
343 | ||
9bfa35fe MH |
344 | static void btusb_isoc_complete(struct urb *urb) |
345 | { | |
346 | struct hci_dev *hdev = urb->context; | |
347 | struct btusb_data *data = hdev->driver_data; | |
348 | int i, err; | |
349 | ||
350 | BT_DBG("%s urb %p status %d count %d", hdev->name, | |
351 | urb, urb->status, urb->actual_length); | |
352 | ||
353 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
354 | return; | |
355 | ||
356 | if (urb->status == 0) { | |
357 | for (i = 0; i < urb->number_of_packets; i++) { | |
358 | unsigned int offset = urb->iso_frame_desc[i].offset; | |
359 | unsigned int length = urb->iso_frame_desc[i].actual_length; | |
360 | ||
361 | if (urb->iso_frame_desc[i].status) | |
362 | continue; | |
363 | ||
364 | hdev->stat.byte_rx += length; | |
365 | ||
366 | if (hci_recv_fragment(hdev, HCI_SCODATA_PKT, | |
367 | urb->transfer_buffer + offset, | |
368 | length) < 0) { | |
369 | BT_ERR("%s corrupted SCO packet", hdev->name); | |
370 | hdev->stat.err_rx++; | |
371 | } | |
372 | } | |
373 | } | |
374 | ||
375 | if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags)) | |
376 | return; | |
377 | ||
378 | usb_anchor_urb(urb, &data->isoc_anchor); | |
379 | ||
380 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
381 | if (err < 0) { | |
382 | BT_ERR("%s urb %p failed to resubmit (%d)", | |
383 | hdev->name, urb, -err); | |
384 | usb_unanchor_urb(urb); | |
385 | } | |
386 | } | |
387 | ||
388 | static void inline __fill_isoc_descriptor(struct urb *urb, int len, int mtu) | |
389 | { | |
390 | int i, offset = 0; | |
391 | ||
392 | BT_DBG("len %d mtu %d", len, mtu); | |
393 | ||
394 | for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu; | |
395 | i++, offset += mtu, len -= mtu) { | |
396 | urb->iso_frame_desc[i].offset = offset; | |
397 | urb->iso_frame_desc[i].length = mtu; | |
398 | } | |
399 | ||
400 | if (len && i < BTUSB_MAX_ISOC_FRAMES) { | |
401 | urb->iso_frame_desc[i].offset = offset; | |
402 | urb->iso_frame_desc[i].length = len; | |
403 | i++; | |
404 | } | |
405 | ||
406 | urb->number_of_packets = i; | |
407 | } | |
408 | ||
2eda66f4 | 409 | static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags) |
9bfa35fe MH |
410 | { |
411 | struct btusb_data *data = hdev->driver_data; | |
412 | struct urb *urb; | |
413 | unsigned char *buf; | |
414 | unsigned int pipe; | |
415 | int err, size; | |
416 | ||
417 | BT_DBG("%s", hdev->name); | |
418 | ||
419 | if (!data->isoc_rx_ep) | |
420 | return -ENODEV; | |
421 | ||
2eda66f4 | 422 | urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags); |
9bfa35fe MH |
423 | if (!urb) |
424 | return -ENOMEM; | |
425 | ||
426 | size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) * | |
427 | BTUSB_MAX_ISOC_FRAMES; | |
428 | ||
2eda66f4 | 429 | buf = kmalloc(size, mem_flags); |
9bfa35fe MH |
430 | if (!buf) { |
431 | usb_free_urb(urb); | |
432 | return -ENOMEM; | |
433 | } | |
434 | ||
435 | pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress); | |
436 | ||
437 | urb->dev = data->udev; | |
438 | urb->pipe = pipe; | |
439 | urb->context = hdev; | |
440 | urb->complete = btusb_isoc_complete; | |
441 | urb->interval = data->isoc_rx_ep->bInterval; | |
442 | ||
443 | urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP; | |
444 | urb->transfer_buffer = buf; | |
445 | urb->transfer_buffer_length = size; | |
446 | ||
447 | __fill_isoc_descriptor(urb, size, | |
448 | le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize)); | |
449 | ||
450 | usb_anchor_urb(urb, &data->isoc_anchor); | |
451 | ||
2eda66f4 | 452 | err = usb_submit_urb(urb, mem_flags); |
9bfa35fe MH |
453 | if (err < 0) { |
454 | BT_ERR("%s urb %p submission failed (%d)", | |
455 | hdev->name, urb, -err); | |
456 | usb_unanchor_urb(urb); | |
9bfa35fe MH |
457 | } |
458 | ||
459 | usb_free_urb(urb); | |
460 | ||
461 | return err; | |
462 | } | |
463 | ||
5e23b923 MH |
464 | static void btusb_tx_complete(struct urb *urb) |
465 | { | |
466 | struct sk_buff *skb = urb->context; | |
467 | struct hci_dev *hdev = (struct hci_dev *) skb->dev; | |
468 | ||
469 | BT_DBG("%s urb %p status %d count %d", hdev->name, | |
470 | urb, urb->status, urb->actual_length); | |
471 | ||
472 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
473 | goto done; | |
474 | ||
475 | if (!urb->status) | |
476 | hdev->stat.byte_tx += urb->transfer_buffer_length; | |
477 | else | |
478 | hdev->stat.err_tx++; | |
479 | ||
480 | done: | |
481 | kfree(urb->setup_packet); | |
482 | ||
483 | kfree_skb(skb); | |
484 | } | |
485 | ||
486 | static int btusb_open(struct hci_dev *hdev) | |
487 | { | |
488 | struct btusb_data *data = hdev->driver_data; | |
489 | int err; | |
490 | ||
491 | BT_DBG("%s", hdev->name); | |
492 | ||
493 | if (test_and_set_bit(HCI_RUNNING, &hdev->flags)) | |
494 | return 0; | |
495 | ||
496 | if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags)) | |
497 | return 0; | |
498 | ||
2eda66f4 | 499 | err = btusb_submit_intr_urb(hdev, GFP_KERNEL); |
43c2e57f MH |
500 | if (err < 0) |
501 | goto failed; | |
502 | ||
503 | err = btusb_submit_bulk_urb(hdev, GFP_KERNEL); | |
5e23b923 | 504 | if (err < 0) { |
43c2e57f MH |
505 | usb_kill_anchored_urbs(&data->intr_anchor); |
506 | goto failed; | |
5e23b923 MH |
507 | } |
508 | ||
43c2e57f MH |
509 | set_bit(BTUSB_BULK_RUNNING, &data->flags); |
510 | btusb_submit_bulk_urb(hdev, GFP_KERNEL); | |
511 | ||
512 | return 0; | |
513 | ||
514 | failed: | |
515 | clear_bit(BTUSB_INTR_RUNNING, &data->flags); | |
516 | clear_bit(HCI_RUNNING, &hdev->flags); | |
5e23b923 MH |
517 | return err; |
518 | } | |
519 | ||
520 | static int btusb_close(struct hci_dev *hdev) | |
521 | { | |
522 | struct btusb_data *data = hdev->driver_data; | |
523 | ||
524 | BT_DBG("%s", hdev->name); | |
525 | ||
526 | if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags)) | |
527 | return 0; | |
528 | ||
e8c3c3d2 MH |
529 | cancel_work_sync(&data->work); |
530 | ||
9bfa35fe | 531 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); |
e8c3c3d2 | 532 | usb_kill_anchored_urbs(&data->isoc_anchor); |
9bfa35fe | 533 | |
5e23b923 MH |
534 | clear_bit(BTUSB_BULK_RUNNING, &data->flags); |
535 | usb_kill_anchored_urbs(&data->bulk_anchor); | |
536 | ||
537 | clear_bit(BTUSB_INTR_RUNNING, &data->flags); | |
538 | usb_kill_anchored_urbs(&data->intr_anchor); | |
539 | ||
540 | return 0; | |
541 | } | |
542 | ||
543 | static int btusb_flush(struct hci_dev *hdev) | |
544 | { | |
545 | struct btusb_data *data = hdev->driver_data; | |
546 | ||
547 | BT_DBG("%s", hdev->name); | |
548 | ||
549 | usb_kill_anchored_urbs(&data->tx_anchor); | |
550 | ||
551 | return 0; | |
552 | } | |
553 | ||
554 | static int btusb_send_frame(struct sk_buff *skb) | |
555 | { | |
556 | struct hci_dev *hdev = (struct hci_dev *) skb->dev; | |
557 | struct btusb_data *data = hdev->driver_data; | |
558 | struct usb_ctrlrequest *dr; | |
559 | struct urb *urb; | |
560 | unsigned int pipe; | |
561 | int err; | |
562 | ||
563 | BT_DBG("%s", hdev->name); | |
564 | ||
565 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
566 | return -EBUSY; | |
567 | ||
568 | switch (bt_cb(skb)->pkt_type) { | |
569 | case HCI_COMMAND_PKT: | |
570 | urb = usb_alloc_urb(0, GFP_ATOMIC); | |
571 | if (!urb) | |
572 | return -ENOMEM; | |
573 | ||
574 | dr = kmalloc(sizeof(*dr), GFP_ATOMIC); | |
575 | if (!dr) { | |
576 | usb_free_urb(urb); | |
577 | return -ENOMEM; | |
578 | } | |
579 | ||
7a9d4020 | 580 | dr->bRequestType = data->cmdreq_type; |
5e23b923 MH |
581 | dr->bRequest = 0; |
582 | dr->wIndex = 0; | |
583 | dr->wValue = 0; | |
584 | dr->wLength = __cpu_to_le16(skb->len); | |
585 | ||
586 | pipe = usb_sndctrlpipe(data->udev, 0x00); | |
587 | ||
588 | usb_fill_control_urb(urb, data->udev, pipe, (void *) dr, | |
589 | skb->data, skb->len, btusb_tx_complete, skb); | |
590 | ||
591 | hdev->stat.cmd_tx++; | |
592 | break; | |
593 | ||
594 | case HCI_ACLDATA_PKT: | |
9bfa35fe MH |
595 | if (!data->bulk_tx_ep || hdev->conn_hash.acl_num < 1) |
596 | return -ENODEV; | |
597 | ||
5e23b923 MH |
598 | urb = usb_alloc_urb(0, GFP_ATOMIC); |
599 | if (!urb) | |
600 | return -ENOMEM; | |
601 | ||
602 | pipe = usb_sndbulkpipe(data->udev, | |
603 | data->bulk_tx_ep->bEndpointAddress); | |
604 | ||
605 | usb_fill_bulk_urb(urb, data->udev, pipe, | |
606 | skb->data, skb->len, btusb_tx_complete, skb); | |
607 | ||
608 | hdev->stat.acl_tx++; | |
609 | break; | |
610 | ||
611 | case HCI_SCODATA_PKT: | |
9bfa35fe MH |
612 | if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1) |
613 | return -ENODEV; | |
614 | ||
615 | urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC); | |
616 | if (!urb) | |
617 | return -ENOMEM; | |
618 | ||
619 | pipe = usb_sndisocpipe(data->udev, | |
620 | data->isoc_tx_ep->bEndpointAddress); | |
621 | ||
622 | urb->dev = data->udev; | |
623 | urb->pipe = pipe; | |
624 | urb->context = skb; | |
625 | urb->complete = btusb_tx_complete; | |
626 | urb->interval = data->isoc_tx_ep->bInterval; | |
627 | ||
628 | urb->transfer_flags = URB_ISO_ASAP; | |
629 | urb->transfer_buffer = skb->data; | |
630 | urb->transfer_buffer_length = skb->len; | |
631 | ||
632 | __fill_isoc_descriptor(urb, skb->len, | |
633 | le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize)); | |
634 | ||
5e23b923 | 635 | hdev->stat.sco_tx++; |
9bfa35fe | 636 | break; |
5e23b923 MH |
637 | |
638 | default: | |
639 | return -EILSEQ; | |
640 | } | |
641 | ||
642 | usb_anchor_urb(urb, &data->tx_anchor); | |
643 | ||
644 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
645 | if (err < 0) { | |
646 | BT_ERR("%s urb %p submission failed", hdev->name, urb); | |
647 | kfree(urb->setup_packet); | |
648 | usb_unanchor_urb(urb); | |
649 | } | |
650 | ||
651 | usb_free_urb(urb); | |
652 | ||
653 | return err; | |
654 | } | |
655 | ||
656 | static void btusb_destruct(struct hci_dev *hdev) | |
657 | { | |
658 | struct btusb_data *data = hdev->driver_data; | |
659 | ||
660 | BT_DBG("%s", hdev->name); | |
661 | ||
662 | kfree(data); | |
663 | } | |
664 | ||
665 | static void btusb_notify(struct hci_dev *hdev, unsigned int evt) | |
666 | { | |
667 | struct btusb_data *data = hdev->driver_data; | |
668 | ||
669 | BT_DBG("%s evt %d", hdev->name, evt); | |
670 | ||
43c2e57f MH |
671 | if (hdev->conn_hash.sco_num != data->sco_num) { |
672 | data->sco_num = hdev->conn_hash.sco_num; | |
673 | schedule_work(&data->work); | |
a780efa8 | 674 | } |
5e23b923 MH |
675 | } |
676 | ||
9bfa35fe MH |
677 | static int inline __set_isoc_interface(struct hci_dev *hdev, int altsetting) |
678 | { | |
679 | struct btusb_data *data = hdev->driver_data; | |
680 | struct usb_interface *intf = data->isoc; | |
681 | struct usb_endpoint_descriptor *ep_desc; | |
682 | int i, err; | |
683 | ||
684 | if (!data->isoc) | |
685 | return -ENODEV; | |
686 | ||
687 | err = usb_set_interface(data->udev, 1, altsetting); | |
688 | if (err < 0) { | |
689 | BT_ERR("%s setting interface failed (%d)", hdev->name, -err); | |
690 | return err; | |
691 | } | |
692 | ||
693 | data->isoc_altsetting = altsetting; | |
694 | ||
695 | data->isoc_tx_ep = NULL; | |
696 | data->isoc_rx_ep = NULL; | |
697 | ||
698 | for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { | |
699 | ep_desc = &intf->cur_altsetting->endpoint[i].desc; | |
700 | ||
701 | if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) { | |
702 | data->isoc_tx_ep = ep_desc; | |
703 | continue; | |
704 | } | |
705 | ||
706 | if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) { | |
707 | data->isoc_rx_ep = ep_desc; | |
708 | continue; | |
709 | } | |
710 | } | |
711 | ||
712 | if (!data->isoc_tx_ep || !data->isoc_rx_ep) { | |
713 | BT_ERR("%s invalid SCO descriptors", hdev->name); | |
714 | return -ENODEV; | |
715 | } | |
716 | ||
717 | return 0; | |
718 | } | |
719 | ||
5e23b923 MH |
720 | static void btusb_work(struct work_struct *work) |
721 | { | |
722 | struct btusb_data *data = container_of(work, struct btusb_data, work); | |
723 | struct hci_dev *hdev = data->hdev; | |
724 | ||
9bfa35fe MH |
725 | if (hdev->conn_hash.sco_num > 0) { |
726 | if (data->isoc_altsetting != 2) { | |
727 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); | |
728 | usb_kill_anchored_urbs(&data->isoc_anchor); | |
729 | ||
730 | if (__set_isoc_interface(hdev, 2) < 0) | |
731 | return; | |
732 | } | |
733 | ||
734 | if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) { | |
2eda66f4 | 735 | if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0) |
9bfa35fe MH |
736 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); |
737 | else | |
2eda66f4 | 738 | btusb_submit_isoc_urb(hdev, GFP_KERNEL); |
9bfa35fe MH |
739 | } |
740 | } else { | |
741 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); | |
742 | usb_kill_anchored_urbs(&data->isoc_anchor); | |
743 | ||
744 | __set_isoc_interface(hdev, 0); | |
5e23b923 MH |
745 | } |
746 | } | |
747 | ||
748 | static int btusb_probe(struct usb_interface *intf, | |
749 | const struct usb_device_id *id) | |
750 | { | |
751 | struct usb_endpoint_descriptor *ep_desc; | |
752 | struct btusb_data *data; | |
753 | struct hci_dev *hdev; | |
754 | int i, err; | |
755 | ||
756 | BT_DBG("intf %p id %p", intf, id); | |
757 | ||
cfeb4145 | 758 | /* interface numbers are hardcoded in the spec */ |
5e23b923 MH |
759 | if (intf->cur_altsetting->desc.bInterfaceNumber != 0) |
760 | return -ENODEV; | |
761 | ||
762 | if (!id->driver_info) { | |
763 | const struct usb_device_id *match; | |
764 | match = usb_match_id(intf, blacklist_table); | |
765 | if (match) | |
766 | id = match; | |
767 | } | |
768 | ||
cfeb4145 MH |
769 | if (id->driver_info == BTUSB_IGNORE) |
770 | return -ENODEV; | |
771 | ||
772 | if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER) | |
773 | return -ENODEV; | |
774 | ||
775 | if (ignore_csr && id->driver_info & BTUSB_CSR) | |
776 | return -ENODEV; | |
777 | ||
778 | if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER) | |
779 | return -ENODEV; | |
780 | ||
5e23b923 MH |
781 | data = kzalloc(sizeof(*data), GFP_KERNEL); |
782 | if (!data) | |
783 | return -ENOMEM; | |
784 | ||
785 | for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { | |
786 | ep_desc = &intf->cur_altsetting->endpoint[i].desc; | |
787 | ||
788 | if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) { | |
789 | data->intr_ep = ep_desc; | |
790 | continue; | |
791 | } | |
792 | ||
793 | if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { | |
794 | data->bulk_tx_ep = ep_desc; | |
795 | continue; | |
796 | } | |
797 | ||
798 | if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { | |
799 | data->bulk_rx_ep = ep_desc; | |
800 | continue; | |
801 | } | |
802 | } | |
803 | ||
804 | if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) { | |
805 | kfree(data); | |
806 | return -ENODEV; | |
807 | } | |
808 | ||
7a9d4020 MH |
809 | data->cmdreq_type = USB_TYPE_CLASS; |
810 | ||
5e23b923 | 811 | data->udev = interface_to_usbdev(intf); |
5fbcd260 | 812 | data->intf = intf; |
5e23b923 MH |
813 | |
814 | spin_lock_init(&data->lock); | |
815 | ||
816 | INIT_WORK(&data->work, btusb_work); | |
817 | ||
818 | init_usb_anchor(&data->tx_anchor); | |
819 | init_usb_anchor(&data->intr_anchor); | |
820 | init_usb_anchor(&data->bulk_anchor); | |
9bfa35fe | 821 | init_usb_anchor(&data->isoc_anchor); |
5e23b923 MH |
822 | |
823 | hdev = hci_alloc_dev(); | |
824 | if (!hdev) { | |
825 | kfree(data); | |
826 | return -ENOMEM; | |
827 | } | |
828 | ||
829 | hdev->type = HCI_USB; | |
830 | hdev->driver_data = data; | |
831 | ||
832 | data->hdev = hdev; | |
833 | ||
834 | SET_HCIDEV_DEV(hdev, &intf->dev); | |
835 | ||
836 | hdev->open = btusb_open; | |
837 | hdev->close = btusb_close; | |
838 | hdev->flush = btusb_flush; | |
839 | hdev->send = btusb_send_frame; | |
840 | hdev->destruct = btusb_destruct; | |
841 | hdev->notify = btusb_notify; | |
842 | ||
843 | hdev->owner = THIS_MODULE; | |
844 | ||
7a9d4020 | 845 | /* Interface numbers are hardcoded in the specification */ |
9bfa35fe MH |
846 | data->isoc = usb_ifnum_to_if(data->udev, 1); |
847 | ||
7a9d4020 MH |
848 | if (!reset) |
849 | set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks); | |
cfeb4145 MH |
850 | |
851 | if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) { | |
852 | if (!disable_scofix) | |
853 | set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks); | |
854 | } | |
855 | ||
9bfa35fe MH |
856 | if (id->driver_info & BTUSB_BROKEN_ISOC) |
857 | data->isoc = NULL; | |
858 | ||
7a9d4020 MH |
859 | if (id->driver_info & BTUSB_DIGIANSWER) { |
860 | data->cmdreq_type = USB_TYPE_VENDOR; | |
861 | set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks); | |
862 | } | |
863 | ||
864 | if (id->driver_info & BTUSB_CSR) { | |
865 | struct usb_device *udev = data->udev; | |
866 | ||
867 | /* Old firmware would otherwise execute USB reset */ | |
868 | if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117) | |
869 | set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks); | |
870 | } | |
871 | ||
cfeb4145 | 872 | if (id->driver_info & BTUSB_SNIFFER) { |
9bfa35fe | 873 | struct usb_device *udev = data->udev; |
cfeb4145 | 874 | |
7a9d4020 | 875 | /* New sniffer firmware has crippled HCI interface */ |
cfeb4145 MH |
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, | |
5fbcd260 | 895 | data->isoc, data); |
9bfa35fe MH |
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 | ||
5fbcd260 | 927 | __hci_dev_hold(hdev); |
9bfa35fe | 928 | |
5fbcd260 MH |
929 | usb_set_intfdata(data->intf, NULL); |
930 | ||
931 | if (data->isoc) | |
932 | usb_set_intfdata(data->isoc, NULL); | |
5e23b923 MH |
933 | |
934 | hci_unregister_dev(hdev); | |
935 | ||
5fbcd260 MH |
936 | if (intf == data->isoc) |
937 | usb_driver_release_interface(&btusb_driver, data->intf); | |
938 | else if (data->isoc) | |
939 | usb_driver_release_interface(&btusb_driver, data->isoc); | |
940 | ||
941 | __hci_dev_put(hdev); | |
942 | ||
5e23b923 MH |
943 | hci_free_dev(hdev); |
944 | } | |
945 | ||
6a88adf2 MH |
946 | static int btusb_suspend(struct usb_interface *intf, pm_message_t message) |
947 | { | |
948 | struct btusb_data *data = usb_get_intfdata(intf); | |
949 | ||
950 | BT_DBG("intf %p", intf); | |
951 | ||
952 | if (data->suspend_count++) | |
953 | return 0; | |
954 | ||
955 | cancel_work_sync(&data->work); | |
956 | ||
957 | usb_kill_anchored_urbs(&data->tx_anchor); | |
958 | ||
959 | usb_kill_anchored_urbs(&data->isoc_anchor); | |
960 | usb_kill_anchored_urbs(&data->bulk_anchor); | |
961 | usb_kill_anchored_urbs(&data->intr_anchor); | |
962 | ||
963 | return 0; | |
964 | } | |
965 | ||
966 | static int btusb_resume(struct usb_interface *intf) | |
967 | { | |
968 | struct btusb_data *data = usb_get_intfdata(intf); | |
969 | struct hci_dev *hdev = data->hdev; | |
970 | int err; | |
971 | ||
972 | BT_DBG("intf %p", intf); | |
973 | ||
974 | if (--data->suspend_count) | |
975 | return 0; | |
976 | ||
977 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
978 | return 0; | |
979 | ||
980 | if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) { | |
981 | err = btusb_submit_intr_urb(hdev, GFP_NOIO); | |
982 | if (err < 0) { | |
983 | clear_bit(BTUSB_INTR_RUNNING, &data->flags); | |
984 | return err; | |
985 | } | |
986 | } | |
987 | ||
988 | if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) { | |
43c2e57f MH |
989 | err = btusb_submit_bulk_urb(hdev, GFP_NOIO); |
990 | if (err < 0) { | |
6a88adf2 | 991 | clear_bit(BTUSB_BULK_RUNNING, &data->flags); |
43c2e57f MH |
992 | return err; |
993 | } else | |
6a88adf2 MH |
994 | btusb_submit_bulk_urb(hdev, GFP_NOIO); |
995 | } | |
996 | ||
997 | if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) { | |
998 | if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0) | |
999 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); | |
1000 | else | |
1001 | btusb_submit_isoc_urb(hdev, GFP_NOIO); | |
1002 | } | |
1003 | ||
1004 | return 0; | |
1005 | } | |
1006 | ||
5e23b923 MH |
1007 | static struct usb_driver btusb_driver = { |
1008 | .name = "btusb", | |
1009 | .probe = btusb_probe, | |
1010 | .disconnect = btusb_disconnect, | |
6a88adf2 MH |
1011 | .suspend = btusb_suspend, |
1012 | .resume = btusb_resume, | |
5e23b923 MH |
1013 | .id_table = btusb_table, |
1014 | }; | |
1015 | ||
1016 | static int __init btusb_init(void) | |
1017 | { | |
1018 | BT_INFO("Generic Bluetooth USB driver ver %s", VERSION); | |
1019 | ||
1020 | return usb_register(&btusb_driver); | |
1021 | } | |
1022 | ||
1023 | static void __exit btusb_exit(void) | |
1024 | { | |
1025 | usb_deregister(&btusb_driver); | |
1026 | } | |
1027 | ||
1028 | module_init(btusb_init); | |
1029 | module_exit(btusb_exit); | |
1030 | ||
cfeb4145 MH |
1031 | module_param(ignore_dga, bool, 0644); |
1032 | MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001"); | |
1033 | ||
1034 | module_param(ignore_csr, bool, 0644); | |
1035 | MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001"); | |
1036 | ||
1037 | module_param(ignore_sniffer, bool, 0644); | |
1038 | MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002"); | |
1039 | ||
1040 | module_param(disable_scofix, bool, 0644); | |
1041 | MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size"); | |
1042 | ||
1043 | module_param(force_scofix, bool, 0644); | |
1044 | MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size"); | |
1045 | ||
1046 | module_param(reset, bool, 0644); | |
1047 | MODULE_PARM_DESC(reset, "Send HCI reset command on initialization"); | |
1048 | ||
5e23b923 MH |
1049 | MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); |
1050 | MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION); | |
1051 | MODULE_VERSION(VERSION); | |
1052 | MODULE_LICENSE("GPL"); |