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 | ||
7bee549e | 38 | #define VERSION "0.6" |
cfeb4145 MH |
39 | |
40 | static int ignore_dga; | |
41 | static int ignore_csr; | |
42 | static int ignore_sniffer; | |
43 | static int disable_scofix; | |
44 | static int force_scofix; | |
7a9d4020 MH |
45 | |
46 | static int reset = 1; | |
cfeb4145 MH |
47 | |
48 | static struct usb_driver btusb_driver; | |
49 | ||
50 | #define BTUSB_IGNORE 0x01 | |
7a9d4020 MH |
51 | #define BTUSB_DIGIANSWER 0x02 |
52 | #define BTUSB_CSR 0x04 | |
53 | #define BTUSB_SNIFFER 0x08 | |
54 | #define BTUSB_BCM92035 0x10 | |
55 | #define BTUSB_BROKEN_ISOC 0x20 | |
56 | #define BTUSB_WRONG_SCO_MTU 0x40 | |
5e23b923 MH |
57 | |
58 | static struct usb_device_id btusb_table[] = { | |
59 | /* Generic Bluetooth USB device */ | |
60 | { USB_DEVICE_INFO(0xe0, 0x01, 0x01) }, | |
61 | ||
3cd01976 NI |
62 | /* Apple MacBookPro 7,1 */ |
63 | { USB_DEVICE(0x05ac, 0x8213) }, | |
64 | ||
0a79f674 CL |
65 | /* Apple iMac11,1 */ |
66 | { USB_DEVICE(0x05ac, 0x8215) }, | |
67 | ||
9c047157 NI |
68 | /* Apple MacBookPro6,2 */ |
69 | { USB_DEVICE(0x05ac, 0x8218) }, | |
70 | ||
3e3ede7d EH |
71 | /* Apple MacBookAir3,1, MacBookAir3,2 */ |
72 | { USB_DEVICE(0x05ac, 0x821b) }, | |
73 | ||
cfeb4145 MH |
74 | /* AVM BlueFRITZ! USB v2.0 */ |
75 | { USB_DEVICE(0x057c, 0x3800) }, | |
76 | ||
77 | /* Bluetooth Ultraport Module from IBM */ | |
78 | { USB_DEVICE(0x04bf, 0x030a) }, | |
79 | ||
80 | /* ALPS Modules with non-standard id */ | |
81 | { USB_DEVICE(0x044e, 0x3001) }, | |
82 | { USB_DEVICE(0x044e, 0x3002) }, | |
83 | ||
84 | /* Ericsson with non-standard id */ | |
85 | { USB_DEVICE(0x0bdb, 0x1002) }, | |
86 | ||
87 | /* Canyon CN-BTU1 with HID interfaces */ | |
7a9d4020 | 88 | { USB_DEVICE(0x0c10, 0x0000) }, |
cfeb4145 | 89 | |
5e23b923 MH |
90 | { } /* Terminating entry */ |
91 | }; | |
92 | ||
93 | MODULE_DEVICE_TABLE(usb, btusb_table); | |
94 | ||
95 | static struct usb_device_id blacklist_table[] = { | |
cfeb4145 MH |
96 | /* CSR BlueCore devices */ |
97 | { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR }, | |
98 | ||
99 | /* Broadcom BCM2033 without firmware */ | |
100 | { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE }, | |
101 | ||
be93112a BS |
102 | /* Atheros 3011 with sflash firmware */ |
103 | { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE }, | |
104 | ||
cfeb4145 | 105 | /* Broadcom BCM2035 */ |
7a9d4020 MH |
106 | { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU }, |
107 | { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU }, | |
108 | { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 }, | |
cfeb4145 MH |
109 | |
110 | /* Broadcom BCM2045 */ | |
7a9d4020 MH |
111 | { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU }, |
112 | { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU }, | |
bdbef3d6 | 113 | |
cfeb4145 | 114 | /* IBM/Lenovo ThinkPad with Broadcom chip */ |
7a9d4020 MH |
115 | { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU }, |
116 | { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU }, | |
cfeb4145 MH |
117 | |
118 | /* HP laptop with Broadcom chip */ | |
7a9d4020 | 119 | { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU }, |
cfeb4145 MH |
120 | |
121 | /* Dell laptop with Broadcom chip */ | |
7a9d4020 | 122 | { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU }, |
cfeb4145 | 123 | |
5ddd4a60 | 124 | /* Dell Wireless 370 and 410 devices */ |
7a9d4020 | 125 | { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU }, |
5ddd4a60 | 126 | { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU }, |
cfeb4145 | 127 | |
7a9d4020 MH |
128 | /* Belkin F8T012 and F8T013 devices */ |
129 | { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU }, | |
130 | { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU }, | |
cfeb4145 | 131 | |
5ddd4a60 MH |
132 | /* Asus WL-BTD202 device */ |
133 | { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU }, | |
134 | ||
135 | /* Kensington Bluetooth USB adapter */ | |
136 | { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU }, | |
137 | ||
cfeb4145 MH |
138 | /* RTX Telecom based adapters with buggy SCO support */ |
139 | { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC }, | |
140 | { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC }, | |
141 | ||
142 | /* CONWISE Technology based adapters with buggy SCO support */ | |
143 | { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC }, | |
144 | ||
cfeb4145 MH |
145 | /* Digianswer devices */ |
146 | { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER }, | |
147 | { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE }, | |
148 | ||
149 | /* CSR BlueCore Bluetooth Sniffer */ | |
150 | { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER }, | |
151 | ||
152 | /* Frontline ComProbe Bluetooth Sniffer */ | |
153 | { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER }, | |
154 | ||
5e23b923 MH |
155 | { } /* Terminating entry */ |
156 | }; | |
157 | ||
9bfa35fe MH |
158 | #define BTUSB_MAX_ISOC_FRAMES 10 |
159 | ||
5e23b923 MH |
160 | #define BTUSB_INTR_RUNNING 0 |
161 | #define BTUSB_BULK_RUNNING 1 | |
9bfa35fe | 162 | #define BTUSB_ISOC_RUNNING 2 |
7bee549e | 163 | #define BTUSB_SUSPENDING 3 |
08b8b6c4 | 164 | #define BTUSB_DID_ISO_RESUME 4 |
5e23b923 MH |
165 | |
166 | struct btusb_data { | |
167 | struct hci_dev *hdev; | |
168 | struct usb_device *udev; | |
5fbcd260 | 169 | struct usb_interface *intf; |
9bfa35fe | 170 | struct usb_interface *isoc; |
5e23b923 MH |
171 | |
172 | spinlock_t lock; | |
173 | ||
174 | unsigned long flags; | |
175 | ||
176 | struct work_struct work; | |
7bee549e | 177 | struct work_struct waker; |
5e23b923 MH |
178 | |
179 | struct usb_anchor tx_anchor; | |
180 | struct usb_anchor intr_anchor; | |
181 | struct usb_anchor bulk_anchor; | |
9bfa35fe | 182 | struct usb_anchor isoc_anchor; |
7bee549e ON |
183 | struct usb_anchor deferred; |
184 | int tx_in_flight; | |
185 | spinlock_t txlock; | |
5e23b923 MH |
186 | |
187 | struct usb_endpoint_descriptor *intr_ep; | |
188 | struct usb_endpoint_descriptor *bulk_tx_ep; | |
189 | struct usb_endpoint_descriptor *bulk_rx_ep; | |
9bfa35fe MH |
190 | struct usb_endpoint_descriptor *isoc_tx_ep; |
191 | struct usb_endpoint_descriptor *isoc_rx_ep; | |
192 | ||
7a9d4020 MH |
193 | __u8 cmdreq_type; |
194 | ||
43c2e57f | 195 | unsigned int sco_num; |
9bfa35fe | 196 | int isoc_altsetting; |
6a88adf2 | 197 | int suspend_count; |
5e23b923 MH |
198 | }; |
199 | ||
7bee549e ON |
200 | static int inc_tx(struct btusb_data *data) |
201 | { | |
202 | unsigned long flags; | |
203 | int rv; | |
204 | ||
205 | spin_lock_irqsave(&data->txlock, flags); | |
206 | rv = test_bit(BTUSB_SUSPENDING, &data->flags); | |
207 | if (!rv) | |
208 | data->tx_in_flight++; | |
209 | spin_unlock_irqrestore(&data->txlock, flags); | |
210 | ||
211 | return rv; | |
212 | } | |
213 | ||
5e23b923 MH |
214 | static void btusb_intr_complete(struct urb *urb) |
215 | { | |
216 | struct hci_dev *hdev = urb->context; | |
217 | struct btusb_data *data = hdev->driver_data; | |
218 | int err; | |
219 | ||
220 | BT_DBG("%s urb %p status %d count %d", hdev->name, | |
221 | urb, urb->status, urb->actual_length); | |
222 | ||
223 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
224 | return; | |
225 | ||
226 | if (urb->status == 0) { | |
9bfa35fe MH |
227 | hdev->stat.byte_rx += urb->actual_length; |
228 | ||
5e23b923 MH |
229 | if (hci_recv_fragment(hdev, HCI_EVENT_PKT, |
230 | urb->transfer_buffer, | |
231 | urb->actual_length) < 0) { | |
232 | BT_ERR("%s corrupted event packet", hdev->name); | |
233 | hdev->stat.err_rx++; | |
234 | } | |
235 | } | |
236 | ||
237 | if (!test_bit(BTUSB_INTR_RUNNING, &data->flags)) | |
238 | return; | |
239 | ||
7bee549e | 240 | usb_mark_last_busy(data->udev); |
5e23b923 MH |
241 | usb_anchor_urb(urb, &data->intr_anchor); |
242 | ||
243 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
244 | if (err < 0) { | |
61faddf6 SS |
245 | if (err != -EPERM) |
246 | BT_ERR("%s urb %p failed to resubmit (%d)", | |
5e23b923 MH |
247 | hdev->name, urb, -err); |
248 | usb_unanchor_urb(urb); | |
249 | } | |
250 | } | |
251 | ||
2eda66f4 | 252 | static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags) |
5e23b923 MH |
253 | { |
254 | struct btusb_data *data = hdev->driver_data; | |
255 | struct urb *urb; | |
256 | unsigned char *buf; | |
257 | unsigned int pipe; | |
258 | int err, size; | |
259 | ||
260 | BT_DBG("%s", hdev->name); | |
261 | ||
9bfa35fe MH |
262 | if (!data->intr_ep) |
263 | return -ENODEV; | |
264 | ||
2eda66f4 | 265 | urb = usb_alloc_urb(0, mem_flags); |
5e23b923 MH |
266 | if (!urb) |
267 | return -ENOMEM; | |
268 | ||
269 | size = le16_to_cpu(data->intr_ep->wMaxPacketSize); | |
270 | ||
2eda66f4 | 271 | buf = kmalloc(size, mem_flags); |
5e23b923 MH |
272 | if (!buf) { |
273 | usb_free_urb(urb); | |
274 | return -ENOMEM; | |
275 | } | |
276 | ||
277 | pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress); | |
278 | ||
279 | usb_fill_int_urb(urb, data->udev, pipe, buf, size, | |
280 | btusb_intr_complete, hdev, | |
281 | data->intr_ep->bInterval); | |
282 | ||
283 | urb->transfer_flags |= URB_FREE_BUFFER; | |
284 | ||
285 | usb_anchor_urb(urb, &data->intr_anchor); | |
286 | ||
2eda66f4 | 287 | err = usb_submit_urb(urb, mem_flags); |
5e23b923 MH |
288 | if (err < 0) { |
289 | BT_ERR("%s urb %p submission failed (%d)", | |
290 | hdev->name, urb, -err); | |
291 | usb_unanchor_urb(urb); | |
5e23b923 MH |
292 | } |
293 | ||
294 | usb_free_urb(urb); | |
295 | ||
296 | return err; | |
297 | } | |
298 | ||
299 | static void btusb_bulk_complete(struct urb *urb) | |
300 | { | |
301 | struct hci_dev *hdev = urb->context; | |
302 | struct btusb_data *data = hdev->driver_data; | |
303 | int err; | |
304 | ||
305 | BT_DBG("%s urb %p status %d count %d", hdev->name, | |
306 | urb, urb->status, urb->actual_length); | |
307 | ||
308 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
309 | return; | |
310 | ||
311 | if (urb->status == 0) { | |
9bfa35fe MH |
312 | hdev->stat.byte_rx += urb->actual_length; |
313 | ||
5e23b923 MH |
314 | if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT, |
315 | urb->transfer_buffer, | |
316 | urb->actual_length) < 0) { | |
317 | BT_ERR("%s corrupted ACL packet", hdev->name); | |
318 | hdev->stat.err_rx++; | |
319 | } | |
320 | } | |
321 | ||
322 | if (!test_bit(BTUSB_BULK_RUNNING, &data->flags)) | |
323 | return; | |
324 | ||
325 | usb_anchor_urb(urb, &data->bulk_anchor); | |
652fd781 | 326 | usb_mark_last_busy(data->udev); |
5e23b923 MH |
327 | |
328 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
329 | if (err < 0) { | |
61faddf6 SS |
330 | if (err != -EPERM) |
331 | BT_ERR("%s urb %p failed to resubmit (%d)", | |
5e23b923 MH |
332 | hdev->name, urb, -err); |
333 | usb_unanchor_urb(urb); | |
334 | } | |
335 | } | |
336 | ||
2eda66f4 | 337 | static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags) |
5e23b923 MH |
338 | { |
339 | struct btusb_data *data = hdev->driver_data; | |
340 | struct urb *urb; | |
341 | unsigned char *buf; | |
342 | unsigned int pipe; | |
290ba200 | 343 | int err, size = HCI_MAX_FRAME_SIZE; |
5e23b923 MH |
344 | |
345 | BT_DBG("%s", hdev->name); | |
346 | ||
9bfa35fe MH |
347 | if (!data->bulk_rx_ep) |
348 | return -ENODEV; | |
349 | ||
2eda66f4 | 350 | urb = usb_alloc_urb(0, mem_flags); |
5e23b923 MH |
351 | if (!urb) |
352 | return -ENOMEM; | |
353 | ||
2eda66f4 | 354 | buf = kmalloc(size, mem_flags); |
5e23b923 MH |
355 | if (!buf) { |
356 | usb_free_urb(urb); | |
357 | return -ENOMEM; | |
358 | } | |
359 | ||
360 | pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress); | |
361 | ||
362 | usb_fill_bulk_urb(urb, data->udev, pipe, | |
363 | buf, size, btusb_bulk_complete, hdev); | |
364 | ||
365 | urb->transfer_flags |= URB_FREE_BUFFER; | |
366 | ||
7bee549e | 367 | usb_mark_last_busy(data->udev); |
5e23b923 MH |
368 | usb_anchor_urb(urb, &data->bulk_anchor); |
369 | ||
2eda66f4 | 370 | err = usb_submit_urb(urb, mem_flags); |
5e23b923 MH |
371 | if (err < 0) { |
372 | BT_ERR("%s urb %p submission failed (%d)", | |
373 | hdev->name, urb, -err); | |
374 | usb_unanchor_urb(urb); | |
5e23b923 MH |
375 | } |
376 | ||
377 | usb_free_urb(urb); | |
378 | ||
379 | return err; | |
380 | } | |
381 | ||
9bfa35fe MH |
382 | static void btusb_isoc_complete(struct urb *urb) |
383 | { | |
384 | struct hci_dev *hdev = urb->context; | |
385 | struct btusb_data *data = hdev->driver_data; | |
386 | int i, err; | |
387 | ||
388 | BT_DBG("%s urb %p status %d count %d", hdev->name, | |
389 | urb, urb->status, urb->actual_length); | |
390 | ||
391 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
392 | return; | |
393 | ||
394 | if (urb->status == 0) { | |
395 | for (i = 0; i < urb->number_of_packets; i++) { | |
396 | unsigned int offset = urb->iso_frame_desc[i].offset; | |
397 | unsigned int length = urb->iso_frame_desc[i].actual_length; | |
398 | ||
399 | if (urb->iso_frame_desc[i].status) | |
400 | continue; | |
401 | ||
402 | hdev->stat.byte_rx += length; | |
403 | ||
404 | if (hci_recv_fragment(hdev, HCI_SCODATA_PKT, | |
405 | urb->transfer_buffer + offset, | |
406 | length) < 0) { | |
407 | BT_ERR("%s corrupted SCO packet", hdev->name); | |
408 | hdev->stat.err_rx++; | |
409 | } | |
410 | } | |
411 | } | |
412 | ||
413 | if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags)) | |
414 | return; | |
415 | ||
416 | usb_anchor_urb(urb, &data->isoc_anchor); | |
417 | ||
418 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
419 | if (err < 0) { | |
61faddf6 SS |
420 | if (err != -EPERM) |
421 | BT_ERR("%s urb %p failed to resubmit (%d)", | |
9bfa35fe MH |
422 | hdev->name, urb, -err); |
423 | usb_unanchor_urb(urb); | |
424 | } | |
425 | } | |
426 | ||
427 | static void inline __fill_isoc_descriptor(struct urb *urb, int len, int mtu) | |
428 | { | |
429 | int i, offset = 0; | |
430 | ||
431 | BT_DBG("len %d mtu %d", len, mtu); | |
432 | ||
433 | for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu; | |
434 | i++, offset += mtu, len -= mtu) { | |
435 | urb->iso_frame_desc[i].offset = offset; | |
436 | urb->iso_frame_desc[i].length = mtu; | |
437 | } | |
438 | ||
439 | if (len && i < BTUSB_MAX_ISOC_FRAMES) { | |
440 | urb->iso_frame_desc[i].offset = offset; | |
441 | urb->iso_frame_desc[i].length = len; | |
442 | i++; | |
443 | } | |
444 | ||
445 | urb->number_of_packets = i; | |
446 | } | |
447 | ||
2eda66f4 | 448 | static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags) |
9bfa35fe MH |
449 | { |
450 | struct btusb_data *data = hdev->driver_data; | |
451 | struct urb *urb; | |
452 | unsigned char *buf; | |
453 | unsigned int pipe; | |
454 | int err, size; | |
455 | ||
456 | BT_DBG("%s", hdev->name); | |
457 | ||
458 | if (!data->isoc_rx_ep) | |
459 | return -ENODEV; | |
460 | ||
2eda66f4 | 461 | urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags); |
9bfa35fe MH |
462 | if (!urb) |
463 | return -ENOMEM; | |
464 | ||
465 | size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) * | |
466 | BTUSB_MAX_ISOC_FRAMES; | |
467 | ||
2eda66f4 | 468 | buf = kmalloc(size, mem_flags); |
9bfa35fe MH |
469 | if (!buf) { |
470 | usb_free_urb(urb); | |
471 | return -ENOMEM; | |
472 | } | |
473 | ||
474 | pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress); | |
475 | ||
476 | urb->dev = data->udev; | |
477 | urb->pipe = pipe; | |
478 | urb->context = hdev; | |
479 | urb->complete = btusb_isoc_complete; | |
480 | urb->interval = data->isoc_rx_ep->bInterval; | |
481 | ||
482 | urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP; | |
483 | urb->transfer_buffer = buf; | |
484 | urb->transfer_buffer_length = size; | |
485 | ||
486 | __fill_isoc_descriptor(urb, size, | |
487 | le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize)); | |
488 | ||
489 | usb_anchor_urb(urb, &data->isoc_anchor); | |
490 | ||
2eda66f4 | 491 | err = usb_submit_urb(urb, mem_flags); |
9bfa35fe MH |
492 | if (err < 0) { |
493 | BT_ERR("%s urb %p submission failed (%d)", | |
494 | hdev->name, urb, -err); | |
495 | usb_unanchor_urb(urb); | |
9bfa35fe MH |
496 | } |
497 | ||
498 | usb_free_urb(urb); | |
499 | ||
500 | return err; | |
501 | } | |
502 | ||
5e23b923 | 503 | static void btusb_tx_complete(struct urb *urb) |
7bee549e ON |
504 | { |
505 | struct sk_buff *skb = urb->context; | |
506 | struct hci_dev *hdev = (struct hci_dev *) skb->dev; | |
507 | struct btusb_data *data = hdev->driver_data; | |
508 | ||
509 | BT_DBG("%s urb %p status %d count %d", hdev->name, | |
510 | urb, urb->status, urb->actual_length); | |
511 | ||
512 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
513 | goto done; | |
514 | ||
515 | if (!urb->status) | |
516 | hdev->stat.byte_tx += urb->transfer_buffer_length; | |
517 | else | |
518 | hdev->stat.err_tx++; | |
519 | ||
520 | done: | |
521 | spin_lock(&data->txlock); | |
522 | data->tx_in_flight--; | |
523 | spin_unlock(&data->txlock); | |
524 | ||
525 | kfree(urb->setup_packet); | |
526 | ||
527 | kfree_skb(skb); | |
528 | } | |
529 | ||
530 | static void btusb_isoc_tx_complete(struct urb *urb) | |
5e23b923 MH |
531 | { |
532 | struct sk_buff *skb = urb->context; | |
533 | struct hci_dev *hdev = (struct hci_dev *) skb->dev; | |
534 | ||
535 | BT_DBG("%s urb %p status %d count %d", hdev->name, | |
536 | urb, urb->status, urb->actual_length); | |
537 | ||
538 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
539 | goto done; | |
540 | ||
541 | if (!urb->status) | |
542 | hdev->stat.byte_tx += urb->transfer_buffer_length; | |
543 | else | |
544 | hdev->stat.err_tx++; | |
545 | ||
546 | done: | |
547 | kfree(urb->setup_packet); | |
548 | ||
549 | kfree_skb(skb); | |
550 | } | |
551 | ||
552 | static int btusb_open(struct hci_dev *hdev) | |
553 | { | |
554 | struct btusb_data *data = hdev->driver_data; | |
555 | int err; | |
556 | ||
557 | BT_DBG("%s", hdev->name); | |
558 | ||
7bee549e ON |
559 | err = usb_autopm_get_interface(data->intf); |
560 | if (err < 0) | |
561 | return err; | |
562 | ||
563 | data->intf->needs_remote_wakeup = 1; | |
564 | ||
5e23b923 | 565 | if (test_and_set_bit(HCI_RUNNING, &hdev->flags)) |
7bee549e | 566 | goto done; |
5e23b923 MH |
567 | |
568 | if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags)) | |
7bee549e | 569 | goto done; |
5e23b923 | 570 | |
2eda66f4 | 571 | err = btusb_submit_intr_urb(hdev, GFP_KERNEL); |
43c2e57f MH |
572 | if (err < 0) |
573 | goto failed; | |
574 | ||
575 | err = btusb_submit_bulk_urb(hdev, GFP_KERNEL); | |
5e23b923 | 576 | if (err < 0) { |
43c2e57f MH |
577 | usb_kill_anchored_urbs(&data->intr_anchor); |
578 | goto failed; | |
5e23b923 MH |
579 | } |
580 | ||
43c2e57f MH |
581 | set_bit(BTUSB_BULK_RUNNING, &data->flags); |
582 | btusb_submit_bulk_urb(hdev, GFP_KERNEL); | |
583 | ||
7bee549e ON |
584 | done: |
585 | usb_autopm_put_interface(data->intf); | |
43c2e57f MH |
586 | return 0; |
587 | ||
588 | failed: | |
589 | clear_bit(BTUSB_INTR_RUNNING, &data->flags); | |
590 | clear_bit(HCI_RUNNING, &hdev->flags); | |
7bee549e | 591 | usb_autopm_put_interface(data->intf); |
5e23b923 MH |
592 | return err; |
593 | } | |
594 | ||
7bee549e ON |
595 | static void btusb_stop_traffic(struct btusb_data *data) |
596 | { | |
597 | usb_kill_anchored_urbs(&data->intr_anchor); | |
598 | usb_kill_anchored_urbs(&data->bulk_anchor); | |
599 | usb_kill_anchored_urbs(&data->isoc_anchor); | |
600 | } | |
601 | ||
5e23b923 MH |
602 | static int btusb_close(struct hci_dev *hdev) |
603 | { | |
604 | struct btusb_data *data = hdev->driver_data; | |
7bee549e | 605 | int err; |
5e23b923 MH |
606 | |
607 | BT_DBG("%s", hdev->name); | |
608 | ||
609 | if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags)) | |
610 | return 0; | |
611 | ||
e8c3c3d2 | 612 | cancel_work_sync(&data->work); |
404291ac | 613 | cancel_work_sync(&data->waker); |
e8c3c3d2 | 614 | |
9bfa35fe | 615 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); |
5e23b923 | 616 | clear_bit(BTUSB_BULK_RUNNING, &data->flags); |
5e23b923 | 617 | clear_bit(BTUSB_INTR_RUNNING, &data->flags); |
7bee549e ON |
618 | |
619 | btusb_stop_traffic(data); | |
620 | err = usb_autopm_get_interface(data->intf); | |
621 | if (err < 0) | |
7b8e2c1d | 622 | goto failed; |
7bee549e ON |
623 | |
624 | data->intf->needs_remote_wakeup = 0; | |
625 | usb_autopm_put_interface(data->intf); | |
5e23b923 | 626 | |
7b8e2c1d ON |
627 | failed: |
628 | usb_scuttle_anchored_urbs(&data->deferred); | |
5e23b923 MH |
629 | return 0; |
630 | } | |
631 | ||
632 | static int btusb_flush(struct hci_dev *hdev) | |
633 | { | |
634 | struct btusb_data *data = hdev->driver_data; | |
635 | ||
636 | BT_DBG("%s", hdev->name); | |
637 | ||
638 | usb_kill_anchored_urbs(&data->tx_anchor); | |
639 | ||
640 | return 0; | |
641 | } | |
642 | ||
643 | static int btusb_send_frame(struct sk_buff *skb) | |
644 | { | |
645 | struct hci_dev *hdev = (struct hci_dev *) skb->dev; | |
646 | struct btusb_data *data = hdev->driver_data; | |
647 | struct usb_ctrlrequest *dr; | |
648 | struct urb *urb; | |
649 | unsigned int pipe; | |
650 | int err; | |
651 | ||
652 | BT_DBG("%s", hdev->name); | |
653 | ||
654 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
655 | return -EBUSY; | |
656 | ||
657 | switch (bt_cb(skb)->pkt_type) { | |
658 | case HCI_COMMAND_PKT: | |
659 | urb = usb_alloc_urb(0, GFP_ATOMIC); | |
660 | if (!urb) | |
661 | return -ENOMEM; | |
662 | ||
663 | dr = kmalloc(sizeof(*dr), GFP_ATOMIC); | |
664 | if (!dr) { | |
665 | usb_free_urb(urb); | |
666 | return -ENOMEM; | |
667 | } | |
668 | ||
7a9d4020 | 669 | dr->bRequestType = data->cmdreq_type; |
5e23b923 MH |
670 | dr->bRequest = 0; |
671 | dr->wIndex = 0; | |
672 | dr->wValue = 0; | |
673 | dr->wLength = __cpu_to_le16(skb->len); | |
674 | ||
675 | pipe = usb_sndctrlpipe(data->udev, 0x00); | |
676 | ||
677 | usb_fill_control_urb(urb, data->udev, pipe, (void *) dr, | |
678 | skb->data, skb->len, btusb_tx_complete, skb); | |
679 | ||
680 | hdev->stat.cmd_tx++; | |
681 | break; | |
682 | ||
683 | case HCI_ACLDATA_PKT: | |
9bfa35fe MH |
684 | if (!data->bulk_tx_ep || hdev->conn_hash.acl_num < 1) |
685 | return -ENODEV; | |
686 | ||
5e23b923 MH |
687 | urb = usb_alloc_urb(0, GFP_ATOMIC); |
688 | if (!urb) | |
689 | return -ENOMEM; | |
690 | ||
691 | pipe = usb_sndbulkpipe(data->udev, | |
692 | data->bulk_tx_ep->bEndpointAddress); | |
693 | ||
694 | usb_fill_bulk_urb(urb, data->udev, pipe, | |
695 | skb->data, skb->len, btusb_tx_complete, skb); | |
696 | ||
697 | hdev->stat.acl_tx++; | |
698 | break; | |
699 | ||
700 | case HCI_SCODATA_PKT: | |
9bfa35fe MH |
701 | if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1) |
702 | return -ENODEV; | |
703 | ||
704 | urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC); | |
705 | if (!urb) | |
706 | return -ENOMEM; | |
707 | ||
708 | pipe = usb_sndisocpipe(data->udev, | |
709 | data->isoc_tx_ep->bEndpointAddress); | |
710 | ||
711 | urb->dev = data->udev; | |
712 | urb->pipe = pipe; | |
713 | urb->context = skb; | |
7bee549e | 714 | urb->complete = btusb_isoc_tx_complete; |
9bfa35fe MH |
715 | urb->interval = data->isoc_tx_ep->bInterval; |
716 | ||
717 | urb->transfer_flags = URB_ISO_ASAP; | |
718 | urb->transfer_buffer = skb->data; | |
719 | urb->transfer_buffer_length = skb->len; | |
720 | ||
721 | __fill_isoc_descriptor(urb, skb->len, | |
722 | le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize)); | |
723 | ||
5e23b923 | 724 | hdev->stat.sco_tx++; |
7bee549e | 725 | goto skip_waking; |
5e23b923 MH |
726 | |
727 | default: | |
728 | return -EILSEQ; | |
729 | } | |
730 | ||
7bee549e ON |
731 | err = inc_tx(data); |
732 | if (err) { | |
733 | usb_anchor_urb(urb, &data->deferred); | |
734 | schedule_work(&data->waker); | |
735 | err = 0; | |
736 | goto done; | |
737 | } | |
738 | ||
739 | skip_waking: | |
5e23b923 MH |
740 | usb_anchor_urb(urb, &data->tx_anchor); |
741 | ||
742 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
743 | if (err < 0) { | |
744 | BT_ERR("%s urb %p submission failed", hdev->name, urb); | |
745 | kfree(urb->setup_packet); | |
746 | usb_unanchor_urb(urb); | |
7bee549e ON |
747 | } else { |
748 | usb_mark_last_busy(data->udev); | |
5e23b923 MH |
749 | } |
750 | ||
751 | usb_free_urb(urb); | |
752 | ||
7bee549e | 753 | done: |
5e23b923 MH |
754 | return err; |
755 | } | |
756 | ||
757 | static void btusb_destruct(struct hci_dev *hdev) | |
758 | { | |
759 | struct btusb_data *data = hdev->driver_data; | |
760 | ||
761 | BT_DBG("%s", hdev->name); | |
762 | ||
763 | kfree(data); | |
764 | } | |
765 | ||
766 | static void btusb_notify(struct hci_dev *hdev, unsigned int evt) | |
767 | { | |
768 | struct btusb_data *data = hdev->driver_data; | |
769 | ||
770 | BT_DBG("%s evt %d", hdev->name, evt); | |
771 | ||
43c2e57f MH |
772 | if (hdev->conn_hash.sco_num != data->sco_num) { |
773 | data->sco_num = hdev->conn_hash.sco_num; | |
774 | schedule_work(&data->work); | |
a780efa8 | 775 | } |
5e23b923 MH |
776 | } |
777 | ||
9bfa35fe MH |
778 | static int inline __set_isoc_interface(struct hci_dev *hdev, int altsetting) |
779 | { | |
780 | struct btusb_data *data = hdev->driver_data; | |
781 | struct usb_interface *intf = data->isoc; | |
782 | struct usb_endpoint_descriptor *ep_desc; | |
783 | int i, err; | |
784 | ||
785 | if (!data->isoc) | |
786 | return -ENODEV; | |
787 | ||
788 | err = usb_set_interface(data->udev, 1, altsetting); | |
789 | if (err < 0) { | |
790 | BT_ERR("%s setting interface failed (%d)", hdev->name, -err); | |
791 | return err; | |
792 | } | |
793 | ||
794 | data->isoc_altsetting = altsetting; | |
795 | ||
796 | data->isoc_tx_ep = NULL; | |
797 | data->isoc_rx_ep = NULL; | |
798 | ||
799 | for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { | |
800 | ep_desc = &intf->cur_altsetting->endpoint[i].desc; | |
801 | ||
802 | if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) { | |
803 | data->isoc_tx_ep = ep_desc; | |
804 | continue; | |
805 | } | |
806 | ||
807 | if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) { | |
808 | data->isoc_rx_ep = ep_desc; | |
809 | continue; | |
810 | } | |
811 | } | |
812 | ||
813 | if (!data->isoc_tx_ep || !data->isoc_rx_ep) { | |
814 | BT_ERR("%s invalid SCO descriptors", hdev->name); | |
815 | return -ENODEV; | |
816 | } | |
817 | ||
818 | return 0; | |
819 | } | |
820 | ||
5e23b923 MH |
821 | static void btusb_work(struct work_struct *work) |
822 | { | |
823 | struct btusb_data *data = container_of(work, struct btusb_data, work); | |
824 | struct hci_dev *hdev = data->hdev; | |
7bee549e | 825 | int err; |
5e23b923 | 826 | |
9bfa35fe | 827 | if (hdev->conn_hash.sco_num > 0) { |
08b8b6c4 | 828 | if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) { |
7bee549e ON |
829 | err = usb_autopm_get_interface(data->isoc); |
830 | if (err < 0) { | |
831 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); | |
832 | usb_kill_anchored_urbs(&data->isoc_anchor); | |
833 | return; | |
834 | } | |
835 | ||
08b8b6c4 | 836 | set_bit(BTUSB_DID_ISO_RESUME, &data->flags); |
7bee549e | 837 | } |
9bfa35fe MH |
838 | if (data->isoc_altsetting != 2) { |
839 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); | |
840 | usb_kill_anchored_urbs(&data->isoc_anchor); | |
841 | ||
842 | if (__set_isoc_interface(hdev, 2) < 0) | |
843 | return; | |
844 | } | |
845 | ||
846 | if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) { | |
2eda66f4 | 847 | if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0) |
9bfa35fe MH |
848 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); |
849 | else | |
2eda66f4 | 850 | btusb_submit_isoc_urb(hdev, GFP_KERNEL); |
9bfa35fe MH |
851 | } |
852 | } else { | |
853 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); | |
854 | usb_kill_anchored_urbs(&data->isoc_anchor); | |
855 | ||
856 | __set_isoc_interface(hdev, 0); | |
08b8b6c4 | 857 | if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags)) |
7bee549e | 858 | usb_autopm_put_interface(data->isoc); |
5e23b923 MH |
859 | } |
860 | } | |
861 | ||
7bee549e ON |
862 | static void btusb_waker(struct work_struct *work) |
863 | { | |
864 | struct btusb_data *data = container_of(work, struct btusb_data, waker); | |
865 | int err; | |
866 | ||
867 | err = usb_autopm_get_interface(data->intf); | |
868 | if (err < 0) | |
869 | return; | |
870 | ||
871 | usb_autopm_put_interface(data->intf); | |
872 | } | |
873 | ||
5e23b923 MH |
874 | static int btusb_probe(struct usb_interface *intf, |
875 | const struct usb_device_id *id) | |
876 | { | |
877 | struct usb_endpoint_descriptor *ep_desc; | |
878 | struct btusb_data *data; | |
879 | struct hci_dev *hdev; | |
880 | int i, err; | |
881 | ||
882 | BT_DBG("intf %p id %p", intf, id); | |
883 | ||
cfeb4145 | 884 | /* interface numbers are hardcoded in the spec */ |
5e23b923 MH |
885 | if (intf->cur_altsetting->desc.bInterfaceNumber != 0) |
886 | return -ENODEV; | |
887 | ||
888 | if (!id->driver_info) { | |
889 | const struct usb_device_id *match; | |
890 | match = usb_match_id(intf, blacklist_table); | |
891 | if (match) | |
892 | id = match; | |
893 | } | |
894 | ||
cfeb4145 MH |
895 | if (id->driver_info == BTUSB_IGNORE) |
896 | return -ENODEV; | |
897 | ||
898 | if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER) | |
899 | return -ENODEV; | |
900 | ||
901 | if (ignore_csr && id->driver_info & BTUSB_CSR) | |
902 | return -ENODEV; | |
903 | ||
904 | if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER) | |
905 | return -ENODEV; | |
906 | ||
5e23b923 MH |
907 | data = kzalloc(sizeof(*data), GFP_KERNEL); |
908 | if (!data) | |
909 | return -ENOMEM; | |
910 | ||
911 | for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { | |
912 | ep_desc = &intf->cur_altsetting->endpoint[i].desc; | |
913 | ||
914 | if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) { | |
915 | data->intr_ep = ep_desc; | |
916 | continue; | |
917 | } | |
918 | ||
919 | if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { | |
920 | data->bulk_tx_ep = ep_desc; | |
921 | continue; | |
922 | } | |
923 | ||
924 | if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { | |
925 | data->bulk_rx_ep = ep_desc; | |
926 | continue; | |
927 | } | |
928 | } | |
929 | ||
930 | if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) { | |
931 | kfree(data); | |
932 | return -ENODEV; | |
933 | } | |
934 | ||
7a9d4020 MH |
935 | data->cmdreq_type = USB_TYPE_CLASS; |
936 | ||
5e23b923 | 937 | data->udev = interface_to_usbdev(intf); |
5fbcd260 | 938 | data->intf = intf; |
5e23b923 MH |
939 | |
940 | spin_lock_init(&data->lock); | |
941 | ||
942 | INIT_WORK(&data->work, btusb_work); | |
7bee549e ON |
943 | INIT_WORK(&data->waker, btusb_waker); |
944 | spin_lock_init(&data->txlock); | |
5e23b923 MH |
945 | |
946 | init_usb_anchor(&data->tx_anchor); | |
947 | init_usb_anchor(&data->intr_anchor); | |
948 | init_usb_anchor(&data->bulk_anchor); | |
9bfa35fe | 949 | init_usb_anchor(&data->isoc_anchor); |
7bee549e | 950 | init_usb_anchor(&data->deferred); |
5e23b923 MH |
951 | |
952 | hdev = hci_alloc_dev(); | |
953 | if (!hdev) { | |
954 | kfree(data); | |
955 | return -ENOMEM; | |
956 | } | |
957 | ||
c13854ce | 958 | hdev->bus = HCI_USB; |
5e23b923 MH |
959 | hdev->driver_data = data; |
960 | ||
961 | data->hdev = hdev; | |
962 | ||
963 | SET_HCIDEV_DEV(hdev, &intf->dev); | |
964 | ||
965 | hdev->open = btusb_open; | |
966 | hdev->close = btusb_close; | |
967 | hdev->flush = btusb_flush; | |
968 | hdev->send = btusb_send_frame; | |
969 | hdev->destruct = btusb_destruct; | |
970 | hdev->notify = btusb_notify; | |
971 | ||
972 | hdev->owner = THIS_MODULE; | |
973 | ||
7a9d4020 | 974 | /* Interface numbers are hardcoded in the specification */ |
9bfa35fe MH |
975 | data->isoc = usb_ifnum_to_if(data->udev, 1); |
976 | ||
7a9d4020 MH |
977 | if (!reset) |
978 | set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks); | |
cfeb4145 MH |
979 | |
980 | if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) { | |
981 | if (!disable_scofix) | |
982 | set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks); | |
983 | } | |
984 | ||
9bfa35fe MH |
985 | if (id->driver_info & BTUSB_BROKEN_ISOC) |
986 | data->isoc = NULL; | |
987 | ||
7a9d4020 MH |
988 | if (id->driver_info & BTUSB_DIGIANSWER) { |
989 | data->cmdreq_type = USB_TYPE_VENDOR; | |
990 | set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks); | |
991 | } | |
992 | ||
993 | if (id->driver_info & BTUSB_CSR) { | |
994 | struct usb_device *udev = data->udev; | |
995 | ||
996 | /* Old firmware would otherwise execute USB reset */ | |
997 | if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117) | |
998 | set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks); | |
999 | } | |
1000 | ||
cfeb4145 | 1001 | if (id->driver_info & BTUSB_SNIFFER) { |
9bfa35fe | 1002 | struct usb_device *udev = data->udev; |
cfeb4145 | 1003 | |
7a9d4020 | 1004 | /* New sniffer firmware has crippled HCI interface */ |
cfeb4145 MH |
1005 | if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997) |
1006 | set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); | |
9bfa35fe MH |
1007 | |
1008 | data->isoc = NULL; | |
cfeb4145 MH |
1009 | } |
1010 | ||
1011 | if (id->driver_info & BTUSB_BCM92035) { | |
1012 | unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 }; | |
1013 | struct sk_buff *skb; | |
1014 | ||
1015 | skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL); | |
1016 | if (skb) { | |
1017 | memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd)); | |
1018 | skb_queue_tail(&hdev->driver_init, skb); | |
1019 | } | |
1020 | } | |
5e23b923 | 1021 | |
9bfa35fe MH |
1022 | if (data->isoc) { |
1023 | err = usb_driver_claim_interface(&btusb_driver, | |
5fbcd260 | 1024 | data->isoc, data); |
9bfa35fe MH |
1025 | if (err < 0) { |
1026 | hci_free_dev(hdev); | |
1027 | kfree(data); | |
1028 | return err; | |
1029 | } | |
1030 | } | |
1031 | ||
5e23b923 MH |
1032 | err = hci_register_dev(hdev); |
1033 | if (err < 0) { | |
1034 | hci_free_dev(hdev); | |
1035 | kfree(data); | |
1036 | return err; | |
1037 | } | |
1038 | ||
1039 | usb_set_intfdata(intf, data); | |
1040 | ||
556ea928 MG |
1041 | usb_enable_autosuspend(interface_to_usbdev(intf)); |
1042 | ||
5e23b923 MH |
1043 | return 0; |
1044 | } | |
1045 | ||
1046 | static void btusb_disconnect(struct usb_interface *intf) | |
1047 | { | |
1048 | struct btusb_data *data = usb_get_intfdata(intf); | |
1049 | struct hci_dev *hdev; | |
1050 | ||
1051 | BT_DBG("intf %p", intf); | |
1052 | ||
1053 | if (!data) | |
1054 | return; | |
1055 | ||
1056 | hdev = data->hdev; | |
1057 | ||
5fbcd260 | 1058 | __hci_dev_hold(hdev); |
9bfa35fe | 1059 | |
5fbcd260 MH |
1060 | usb_set_intfdata(data->intf, NULL); |
1061 | ||
1062 | if (data->isoc) | |
1063 | usb_set_intfdata(data->isoc, NULL); | |
5e23b923 MH |
1064 | |
1065 | hci_unregister_dev(hdev); | |
1066 | ||
5fbcd260 MH |
1067 | if (intf == data->isoc) |
1068 | usb_driver_release_interface(&btusb_driver, data->intf); | |
1069 | else if (data->isoc) | |
1070 | usb_driver_release_interface(&btusb_driver, data->isoc); | |
1071 | ||
1072 | __hci_dev_put(hdev); | |
1073 | ||
5e23b923 MH |
1074 | hci_free_dev(hdev); |
1075 | } | |
1076 | ||
7bee549e | 1077 | #ifdef CONFIG_PM |
6a88adf2 MH |
1078 | static int btusb_suspend(struct usb_interface *intf, pm_message_t message) |
1079 | { | |
1080 | struct btusb_data *data = usb_get_intfdata(intf); | |
1081 | ||
1082 | BT_DBG("intf %p", intf); | |
1083 | ||
1084 | if (data->suspend_count++) | |
1085 | return 0; | |
1086 | ||
7bee549e | 1087 | spin_lock_irq(&data->txlock); |
fb34d537 | 1088 | if (!((message.event & PM_EVENT_AUTO) && data->tx_in_flight)) { |
7bee549e ON |
1089 | set_bit(BTUSB_SUSPENDING, &data->flags); |
1090 | spin_unlock_irq(&data->txlock); | |
1091 | } else { | |
1092 | spin_unlock_irq(&data->txlock); | |
1093 | data->suspend_count--; | |
1094 | return -EBUSY; | |
1095 | } | |
1096 | ||
6a88adf2 MH |
1097 | cancel_work_sync(&data->work); |
1098 | ||
7bee549e | 1099 | btusb_stop_traffic(data); |
6a88adf2 MH |
1100 | usb_kill_anchored_urbs(&data->tx_anchor); |
1101 | ||
6a88adf2 MH |
1102 | return 0; |
1103 | } | |
1104 | ||
7bee549e ON |
1105 | static void play_deferred(struct btusb_data *data) |
1106 | { | |
1107 | struct urb *urb; | |
1108 | int err; | |
1109 | ||
1110 | while ((urb = usb_get_from_anchor(&data->deferred))) { | |
1111 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
1112 | if (err < 0) | |
1113 | break; | |
1114 | ||
1115 | data->tx_in_flight++; | |
1116 | } | |
1117 | usb_scuttle_anchored_urbs(&data->deferred); | |
1118 | } | |
1119 | ||
6a88adf2 MH |
1120 | static int btusb_resume(struct usb_interface *intf) |
1121 | { | |
1122 | struct btusb_data *data = usb_get_intfdata(intf); | |
1123 | struct hci_dev *hdev = data->hdev; | |
7bee549e | 1124 | int err = 0; |
6a88adf2 MH |
1125 | |
1126 | BT_DBG("intf %p", intf); | |
1127 | ||
1128 | if (--data->suspend_count) | |
1129 | return 0; | |
1130 | ||
1131 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
7bee549e | 1132 | goto done; |
6a88adf2 MH |
1133 | |
1134 | if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) { | |
1135 | err = btusb_submit_intr_urb(hdev, GFP_NOIO); | |
1136 | if (err < 0) { | |
1137 | clear_bit(BTUSB_INTR_RUNNING, &data->flags); | |
7bee549e | 1138 | goto failed; |
6a88adf2 MH |
1139 | } |
1140 | } | |
1141 | ||
1142 | if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) { | |
43c2e57f MH |
1143 | err = btusb_submit_bulk_urb(hdev, GFP_NOIO); |
1144 | if (err < 0) { | |
6a88adf2 | 1145 | clear_bit(BTUSB_BULK_RUNNING, &data->flags); |
7bee549e ON |
1146 | goto failed; |
1147 | } | |
1148 | ||
1149 | btusb_submit_bulk_urb(hdev, GFP_NOIO); | |
6a88adf2 MH |
1150 | } |
1151 | ||
1152 | if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) { | |
1153 | if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0) | |
1154 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); | |
1155 | else | |
1156 | btusb_submit_isoc_urb(hdev, GFP_NOIO); | |
1157 | } | |
1158 | ||
7bee549e ON |
1159 | spin_lock_irq(&data->txlock); |
1160 | play_deferred(data); | |
1161 | clear_bit(BTUSB_SUSPENDING, &data->flags); | |
1162 | spin_unlock_irq(&data->txlock); | |
1163 | schedule_work(&data->work); | |
1164 | ||
6a88adf2 | 1165 | return 0; |
7bee549e ON |
1166 | |
1167 | failed: | |
1168 | usb_scuttle_anchored_urbs(&data->deferred); | |
1169 | done: | |
1170 | spin_lock_irq(&data->txlock); | |
1171 | clear_bit(BTUSB_SUSPENDING, &data->flags); | |
1172 | spin_unlock_irq(&data->txlock); | |
1173 | ||
1174 | return err; | |
6a88adf2 | 1175 | } |
7bee549e | 1176 | #endif |
6a88adf2 | 1177 | |
5e23b923 MH |
1178 | static struct usb_driver btusb_driver = { |
1179 | .name = "btusb", | |
1180 | .probe = btusb_probe, | |
1181 | .disconnect = btusb_disconnect, | |
7bee549e | 1182 | #ifdef CONFIG_PM |
6a88adf2 MH |
1183 | .suspend = btusb_suspend, |
1184 | .resume = btusb_resume, | |
7bee549e | 1185 | #endif |
5e23b923 | 1186 | .id_table = btusb_table, |
7bee549e | 1187 | .supports_autosuspend = 1, |
5e23b923 MH |
1188 | }; |
1189 | ||
1190 | static int __init btusb_init(void) | |
1191 | { | |
1192 | BT_INFO("Generic Bluetooth USB driver ver %s", VERSION); | |
1193 | ||
1194 | return usb_register(&btusb_driver); | |
1195 | } | |
1196 | ||
1197 | static void __exit btusb_exit(void) | |
1198 | { | |
1199 | usb_deregister(&btusb_driver); | |
1200 | } | |
1201 | ||
1202 | module_init(btusb_init); | |
1203 | module_exit(btusb_exit); | |
1204 | ||
cfeb4145 MH |
1205 | module_param(ignore_dga, bool, 0644); |
1206 | MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001"); | |
1207 | ||
1208 | module_param(ignore_csr, bool, 0644); | |
1209 | MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001"); | |
1210 | ||
1211 | module_param(ignore_sniffer, bool, 0644); | |
1212 | MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002"); | |
1213 | ||
1214 | module_param(disable_scofix, bool, 0644); | |
1215 | MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size"); | |
1216 | ||
1217 | module_param(force_scofix, bool, 0644); | |
1218 | MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size"); | |
1219 | ||
1220 | module_param(reset, bool, 0644); | |
1221 | MODULE_PARM_DESC(reset, "Send HCI reset command on initialization"); | |
1222 | ||
5e23b923 MH |
1223 | MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); |
1224 | MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION); | |
1225 | MODULE_VERSION(VERSION); | |
1226 | MODULE_LICENSE("GPL"); |