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Commit | Line | Data |
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5e23b923 MH |
1 | /* |
2 | * | |
3 | * Generic Bluetooth USB driver | |
4 | * | |
9bfa35fe | 5 | * Copyright (C) 2005-2008 Marcel Holtmann <marcel@holtmann.org> |
5e23b923 MH |
6 | * |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
21 | * | |
22 | */ | |
23 | ||
24 | #include <linux/kernel.h> | |
25 | #include <linux/module.h> | |
26 | #include <linux/init.h> | |
27 | #include <linux/slab.h> | |
28 | #include <linux/types.h> | |
29 | #include <linux/sched.h> | |
30 | #include <linux/errno.h> | |
31 | #include <linux/skbuff.h> | |
32 | ||
33 | #include <linux/usb.h> | |
34 | ||
35 | #include <net/bluetooth/bluetooth.h> | |
36 | #include <net/bluetooth/hci_core.h> | |
37 | ||
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 | ||
509e7861 CYC |
105 | /* Atheros AR9285 Malbec with sflash firmware */ |
106 | { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE }, | |
107 | ||
cfeb4145 | 108 | /* Broadcom BCM2035 */ |
7a9d4020 MH |
109 | { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU }, |
110 | { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU }, | |
111 | { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 }, | |
cfeb4145 MH |
112 | |
113 | /* Broadcom BCM2045 */ | |
7a9d4020 MH |
114 | { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU }, |
115 | { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU }, | |
bdbef3d6 | 116 | |
cfeb4145 | 117 | /* IBM/Lenovo ThinkPad with Broadcom chip */ |
7a9d4020 MH |
118 | { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU }, |
119 | { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU }, | |
cfeb4145 MH |
120 | |
121 | /* HP laptop with Broadcom chip */ | |
7a9d4020 | 122 | { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU }, |
cfeb4145 MH |
123 | |
124 | /* Dell laptop with Broadcom chip */ | |
7a9d4020 | 125 | { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU }, |
cfeb4145 | 126 | |
5ddd4a60 | 127 | /* Dell Wireless 370 and 410 devices */ |
7a9d4020 | 128 | { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU }, |
5ddd4a60 | 129 | { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU }, |
cfeb4145 | 130 | |
7a9d4020 MH |
131 | /* Belkin F8T012 and F8T013 devices */ |
132 | { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU }, | |
133 | { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU }, | |
cfeb4145 | 134 | |
5ddd4a60 MH |
135 | /* Asus WL-BTD202 device */ |
136 | { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU }, | |
137 | ||
138 | /* Kensington Bluetooth USB adapter */ | |
139 | { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU }, | |
140 | ||
cfeb4145 MH |
141 | /* RTX Telecom based adapters with buggy SCO support */ |
142 | { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC }, | |
143 | { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC }, | |
144 | ||
145 | /* CONWISE Technology based adapters with buggy SCO support */ | |
146 | { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC }, | |
147 | ||
cfeb4145 MH |
148 | /* Digianswer devices */ |
149 | { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER }, | |
150 | { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE }, | |
151 | ||
152 | /* CSR BlueCore Bluetooth Sniffer */ | |
153 | { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER }, | |
154 | ||
155 | /* Frontline ComProbe Bluetooth Sniffer */ | |
156 | { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER }, | |
157 | ||
5e23b923 MH |
158 | { } /* Terminating entry */ |
159 | }; | |
160 | ||
9bfa35fe MH |
161 | #define BTUSB_MAX_ISOC_FRAMES 10 |
162 | ||
5e23b923 MH |
163 | #define BTUSB_INTR_RUNNING 0 |
164 | #define BTUSB_BULK_RUNNING 1 | |
9bfa35fe | 165 | #define BTUSB_ISOC_RUNNING 2 |
7bee549e | 166 | #define BTUSB_SUSPENDING 3 |
08b8b6c4 | 167 | #define BTUSB_DID_ISO_RESUME 4 |
5e23b923 MH |
168 | |
169 | struct btusb_data { | |
170 | struct hci_dev *hdev; | |
171 | struct usb_device *udev; | |
5fbcd260 | 172 | struct usb_interface *intf; |
9bfa35fe | 173 | struct usb_interface *isoc; |
5e23b923 MH |
174 | |
175 | spinlock_t lock; | |
176 | ||
177 | unsigned long flags; | |
178 | ||
179 | struct work_struct work; | |
7bee549e | 180 | struct work_struct waker; |
5e23b923 MH |
181 | |
182 | struct usb_anchor tx_anchor; | |
183 | struct usb_anchor intr_anchor; | |
184 | struct usb_anchor bulk_anchor; | |
9bfa35fe | 185 | struct usb_anchor isoc_anchor; |
7bee549e ON |
186 | struct usb_anchor deferred; |
187 | int tx_in_flight; | |
188 | spinlock_t txlock; | |
5e23b923 MH |
189 | |
190 | struct usb_endpoint_descriptor *intr_ep; | |
191 | struct usb_endpoint_descriptor *bulk_tx_ep; | |
192 | struct usb_endpoint_descriptor *bulk_rx_ep; | |
9bfa35fe MH |
193 | struct usb_endpoint_descriptor *isoc_tx_ep; |
194 | struct usb_endpoint_descriptor *isoc_rx_ep; | |
195 | ||
7a9d4020 MH |
196 | __u8 cmdreq_type; |
197 | ||
43c2e57f | 198 | unsigned int sco_num; |
9bfa35fe | 199 | int isoc_altsetting; |
6a88adf2 | 200 | int suspend_count; |
5e23b923 MH |
201 | }; |
202 | ||
7bee549e ON |
203 | static int inc_tx(struct btusb_data *data) |
204 | { | |
205 | unsigned long flags; | |
206 | int rv; | |
207 | ||
208 | spin_lock_irqsave(&data->txlock, flags); | |
209 | rv = test_bit(BTUSB_SUSPENDING, &data->flags); | |
210 | if (!rv) | |
211 | data->tx_in_flight++; | |
212 | spin_unlock_irqrestore(&data->txlock, flags); | |
213 | ||
214 | return rv; | |
215 | } | |
216 | ||
5e23b923 MH |
217 | static void btusb_intr_complete(struct urb *urb) |
218 | { | |
219 | struct hci_dev *hdev = urb->context; | |
220 | struct btusb_data *data = hdev->driver_data; | |
221 | int err; | |
222 | ||
223 | BT_DBG("%s urb %p status %d count %d", hdev->name, | |
224 | urb, urb->status, urb->actual_length); | |
225 | ||
226 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
227 | return; | |
228 | ||
229 | if (urb->status == 0) { | |
9bfa35fe MH |
230 | hdev->stat.byte_rx += urb->actual_length; |
231 | ||
5e23b923 MH |
232 | if (hci_recv_fragment(hdev, HCI_EVENT_PKT, |
233 | urb->transfer_buffer, | |
234 | urb->actual_length) < 0) { | |
235 | BT_ERR("%s corrupted event packet", hdev->name); | |
236 | hdev->stat.err_rx++; | |
237 | } | |
238 | } | |
239 | ||
240 | if (!test_bit(BTUSB_INTR_RUNNING, &data->flags)) | |
241 | return; | |
242 | ||
7bee549e | 243 | usb_mark_last_busy(data->udev); |
5e23b923 MH |
244 | usb_anchor_urb(urb, &data->intr_anchor); |
245 | ||
246 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
247 | if (err < 0) { | |
61faddf6 SS |
248 | if (err != -EPERM) |
249 | BT_ERR("%s urb %p failed to resubmit (%d)", | |
5e23b923 MH |
250 | hdev->name, urb, -err); |
251 | usb_unanchor_urb(urb); | |
252 | } | |
253 | } | |
254 | ||
2eda66f4 | 255 | static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags) |
5e23b923 MH |
256 | { |
257 | struct btusb_data *data = hdev->driver_data; | |
258 | struct urb *urb; | |
259 | unsigned char *buf; | |
260 | unsigned int pipe; | |
261 | int err, size; | |
262 | ||
263 | BT_DBG("%s", hdev->name); | |
264 | ||
9bfa35fe MH |
265 | if (!data->intr_ep) |
266 | return -ENODEV; | |
267 | ||
2eda66f4 | 268 | urb = usb_alloc_urb(0, mem_flags); |
5e23b923 MH |
269 | if (!urb) |
270 | return -ENOMEM; | |
271 | ||
272 | size = le16_to_cpu(data->intr_ep->wMaxPacketSize); | |
273 | ||
2eda66f4 | 274 | buf = kmalloc(size, mem_flags); |
5e23b923 MH |
275 | if (!buf) { |
276 | usb_free_urb(urb); | |
277 | return -ENOMEM; | |
278 | } | |
279 | ||
280 | pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress); | |
281 | ||
282 | usb_fill_int_urb(urb, data->udev, pipe, buf, size, | |
283 | btusb_intr_complete, hdev, | |
284 | data->intr_ep->bInterval); | |
285 | ||
286 | urb->transfer_flags |= URB_FREE_BUFFER; | |
287 | ||
288 | usb_anchor_urb(urb, &data->intr_anchor); | |
289 | ||
2eda66f4 | 290 | err = usb_submit_urb(urb, mem_flags); |
5e23b923 MH |
291 | if (err < 0) { |
292 | BT_ERR("%s urb %p submission failed (%d)", | |
293 | hdev->name, urb, -err); | |
294 | usb_unanchor_urb(urb); | |
5e23b923 MH |
295 | } |
296 | ||
297 | usb_free_urb(urb); | |
298 | ||
299 | return err; | |
300 | } | |
301 | ||
302 | static void btusb_bulk_complete(struct urb *urb) | |
303 | { | |
304 | struct hci_dev *hdev = urb->context; | |
305 | struct btusb_data *data = hdev->driver_data; | |
306 | int err; | |
307 | ||
308 | BT_DBG("%s urb %p status %d count %d", hdev->name, | |
309 | urb, urb->status, urb->actual_length); | |
310 | ||
311 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
312 | return; | |
313 | ||
314 | if (urb->status == 0) { | |
9bfa35fe MH |
315 | hdev->stat.byte_rx += urb->actual_length; |
316 | ||
5e23b923 MH |
317 | if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT, |
318 | urb->transfer_buffer, | |
319 | urb->actual_length) < 0) { | |
320 | BT_ERR("%s corrupted ACL packet", hdev->name); | |
321 | hdev->stat.err_rx++; | |
322 | } | |
323 | } | |
324 | ||
325 | if (!test_bit(BTUSB_BULK_RUNNING, &data->flags)) | |
326 | return; | |
327 | ||
328 | usb_anchor_urb(urb, &data->bulk_anchor); | |
652fd781 | 329 | usb_mark_last_busy(data->udev); |
5e23b923 MH |
330 | |
331 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
332 | if (err < 0) { | |
61faddf6 SS |
333 | if (err != -EPERM) |
334 | BT_ERR("%s urb %p failed to resubmit (%d)", | |
5e23b923 MH |
335 | hdev->name, urb, -err); |
336 | usb_unanchor_urb(urb); | |
337 | } | |
338 | } | |
339 | ||
2eda66f4 | 340 | static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags) |
5e23b923 MH |
341 | { |
342 | struct btusb_data *data = hdev->driver_data; | |
343 | struct urb *urb; | |
344 | unsigned char *buf; | |
345 | unsigned int pipe; | |
290ba200 | 346 | int err, size = HCI_MAX_FRAME_SIZE; |
5e23b923 MH |
347 | |
348 | BT_DBG("%s", hdev->name); | |
349 | ||
9bfa35fe MH |
350 | if (!data->bulk_rx_ep) |
351 | return -ENODEV; | |
352 | ||
2eda66f4 | 353 | urb = usb_alloc_urb(0, mem_flags); |
5e23b923 MH |
354 | if (!urb) |
355 | return -ENOMEM; | |
356 | ||
2eda66f4 | 357 | buf = kmalloc(size, mem_flags); |
5e23b923 MH |
358 | if (!buf) { |
359 | usb_free_urb(urb); | |
360 | return -ENOMEM; | |
361 | } | |
362 | ||
363 | pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress); | |
364 | ||
365 | usb_fill_bulk_urb(urb, data->udev, pipe, | |
366 | buf, size, btusb_bulk_complete, hdev); | |
367 | ||
368 | urb->transfer_flags |= URB_FREE_BUFFER; | |
369 | ||
7bee549e | 370 | usb_mark_last_busy(data->udev); |
5e23b923 MH |
371 | usb_anchor_urb(urb, &data->bulk_anchor); |
372 | ||
2eda66f4 | 373 | err = usb_submit_urb(urb, mem_flags); |
5e23b923 MH |
374 | if (err < 0) { |
375 | BT_ERR("%s urb %p submission failed (%d)", | |
376 | hdev->name, urb, -err); | |
377 | usb_unanchor_urb(urb); | |
5e23b923 MH |
378 | } |
379 | ||
380 | usb_free_urb(urb); | |
381 | ||
382 | return err; | |
383 | } | |
384 | ||
9bfa35fe MH |
385 | static void btusb_isoc_complete(struct urb *urb) |
386 | { | |
387 | struct hci_dev *hdev = urb->context; | |
388 | struct btusb_data *data = hdev->driver_data; | |
389 | int i, err; | |
390 | ||
391 | BT_DBG("%s urb %p status %d count %d", hdev->name, | |
392 | urb, urb->status, urb->actual_length); | |
393 | ||
394 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
395 | return; | |
396 | ||
397 | if (urb->status == 0) { | |
398 | for (i = 0; i < urb->number_of_packets; i++) { | |
399 | unsigned int offset = urb->iso_frame_desc[i].offset; | |
400 | unsigned int length = urb->iso_frame_desc[i].actual_length; | |
401 | ||
402 | if (urb->iso_frame_desc[i].status) | |
403 | continue; | |
404 | ||
405 | hdev->stat.byte_rx += length; | |
406 | ||
407 | if (hci_recv_fragment(hdev, HCI_SCODATA_PKT, | |
408 | urb->transfer_buffer + offset, | |
409 | length) < 0) { | |
410 | BT_ERR("%s corrupted SCO packet", hdev->name); | |
411 | hdev->stat.err_rx++; | |
412 | } | |
413 | } | |
414 | } | |
415 | ||
416 | if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags)) | |
417 | return; | |
418 | ||
419 | usb_anchor_urb(urb, &data->isoc_anchor); | |
420 | ||
421 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
422 | if (err < 0) { | |
61faddf6 SS |
423 | if (err != -EPERM) |
424 | BT_ERR("%s urb %p failed to resubmit (%d)", | |
9bfa35fe MH |
425 | hdev->name, urb, -err); |
426 | usb_unanchor_urb(urb); | |
427 | } | |
428 | } | |
429 | ||
430 | static void inline __fill_isoc_descriptor(struct urb *urb, int len, int mtu) | |
431 | { | |
432 | int i, offset = 0; | |
433 | ||
434 | BT_DBG("len %d mtu %d", len, mtu); | |
435 | ||
436 | for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu; | |
437 | i++, offset += mtu, len -= mtu) { | |
438 | urb->iso_frame_desc[i].offset = offset; | |
439 | urb->iso_frame_desc[i].length = mtu; | |
440 | } | |
441 | ||
442 | if (len && i < BTUSB_MAX_ISOC_FRAMES) { | |
443 | urb->iso_frame_desc[i].offset = offset; | |
444 | urb->iso_frame_desc[i].length = len; | |
445 | i++; | |
446 | } | |
447 | ||
448 | urb->number_of_packets = i; | |
449 | } | |
450 | ||
2eda66f4 | 451 | static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags) |
9bfa35fe MH |
452 | { |
453 | struct btusb_data *data = hdev->driver_data; | |
454 | struct urb *urb; | |
455 | unsigned char *buf; | |
456 | unsigned int pipe; | |
457 | int err, size; | |
458 | ||
459 | BT_DBG("%s", hdev->name); | |
460 | ||
461 | if (!data->isoc_rx_ep) | |
462 | return -ENODEV; | |
463 | ||
2eda66f4 | 464 | urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags); |
9bfa35fe MH |
465 | if (!urb) |
466 | return -ENOMEM; | |
467 | ||
468 | size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) * | |
469 | BTUSB_MAX_ISOC_FRAMES; | |
470 | ||
2eda66f4 | 471 | buf = kmalloc(size, mem_flags); |
9bfa35fe MH |
472 | if (!buf) { |
473 | usb_free_urb(urb); | |
474 | return -ENOMEM; | |
475 | } | |
476 | ||
477 | pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress); | |
478 | ||
479 | urb->dev = data->udev; | |
480 | urb->pipe = pipe; | |
481 | urb->context = hdev; | |
482 | urb->complete = btusb_isoc_complete; | |
483 | urb->interval = data->isoc_rx_ep->bInterval; | |
484 | ||
485 | urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP; | |
486 | urb->transfer_buffer = buf; | |
487 | urb->transfer_buffer_length = size; | |
488 | ||
489 | __fill_isoc_descriptor(urb, size, | |
490 | le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize)); | |
491 | ||
492 | usb_anchor_urb(urb, &data->isoc_anchor); | |
493 | ||
2eda66f4 | 494 | err = usb_submit_urb(urb, mem_flags); |
9bfa35fe MH |
495 | if (err < 0) { |
496 | BT_ERR("%s urb %p submission failed (%d)", | |
497 | hdev->name, urb, -err); | |
498 | usb_unanchor_urb(urb); | |
9bfa35fe MH |
499 | } |
500 | ||
501 | usb_free_urb(urb); | |
502 | ||
503 | return err; | |
504 | } | |
505 | ||
5e23b923 | 506 | static void btusb_tx_complete(struct urb *urb) |
7bee549e ON |
507 | { |
508 | struct sk_buff *skb = urb->context; | |
509 | struct hci_dev *hdev = (struct hci_dev *) skb->dev; | |
510 | struct btusb_data *data = hdev->driver_data; | |
511 | ||
512 | BT_DBG("%s urb %p status %d count %d", hdev->name, | |
513 | urb, urb->status, urb->actual_length); | |
514 | ||
515 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
516 | goto done; | |
517 | ||
518 | if (!urb->status) | |
519 | hdev->stat.byte_tx += urb->transfer_buffer_length; | |
520 | else | |
521 | hdev->stat.err_tx++; | |
522 | ||
523 | done: | |
524 | spin_lock(&data->txlock); | |
525 | data->tx_in_flight--; | |
526 | spin_unlock(&data->txlock); | |
527 | ||
528 | kfree(urb->setup_packet); | |
529 | ||
530 | kfree_skb(skb); | |
531 | } | |
532 | ||
533 | static void btusb_isoc_tx_complete(struct urb *urb) | |
5e23b923 MH |
534 | { |
535 | struct sk_buff *skb = urb->context; | |
536 | struct hci_dev *hdev = (struct hci_dev *) skb->dev; | |
537 | ||
538 | BT_DBG("%s urb %p status %d count %d", hdev->name, | |
539 | urb, urb->status, urb->actual_length); | |
540 | ||
541 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
542 | goto done; | |
543 | ||
544 | if (!urb->status) | |
545 | hdev->stat.byte_tx += urb->transfer_buffer_length; | |
546 | else | |
547 | hdev->stat.err_tx++; | |
548 | ||
549 | done: | |
550 | kfree(urb->setup_packet); | |
551 | ||
552 | kfree_skb(skb); | |
553 | } | |
554 | ||
555 | static int btusb_open(struct hci_dev *hdev) | |
556 | { | |
557 | struct btusb_data *data = hdev->driver_data; | |
558 | int err; | |
559 | ||
560 | BT_DBG("%s", hdev->name); | |
561 | ||
7bee549e ON |
562 | err = usb_autopm_get_interface(data->intf); |
563 | if (err < 0) | |
564 | return err; | |
565 | ||
566 | data->intf->needs_remote_wakeup = 1; | |
567 | ||
5e23b923 | 568 | if (test_and_set_bit(HCI_RUNNING, &hdev->flags)) |
7bee549e | 569 | goto done; |
5e23b923 MH |
570 | |
571 | if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags)) | |
7bee549e | 572 | goto done; |
5e23b923 | 573 | |
2eda66f4 | 574 | err = btusb_submit_intr_urb(hdev, GFP_KERNEL); |
43c2e57f MH |
575 | if (err < 0) |
576 | goto failed; | |
577 | ||
578 | err = btusb_submit_bulk_urb(hdev, GFP_KERNEL); | |
5e23b923 | 579 | if (err < 0) { |
43c2e57f MH |
580 | usb_kill_anchored_urbs(&data->intr_anchor); |
581 | goto failed; | |
5e23b923 MH |
582 | } |
583 | ||
43c2e57f MH |
584 | set_bit(BTUSB_BULK_RUNNING, &data->flags); |
585 | btusb_submit_bulk_urb(hdev, GFP_KERNEL); | |
586 | ||
7bee549e ON |
587 | done: |
588 | usb_autopm_put_interface(data->intf); | |
43c2e57f MH |
589 | return 0; |
590 | ||
591 | failed: | |
592 | clear_bit(BTUSB_INTR_RUNNING, &data->flags); | |
593 | clear_bit(HCI_RUNNING, &hdev->flags); | |
7bee549e | 594 | usb_autopm_put_interface(data->intf); |
5e23b923 MH |
595 | return err; |
596 | } | |
597 | ||
7bee549e ON |
598 | static void btusb_stop_traffic(struct btusb_data *data) |
599 | { | |
600 | usb_kill_anchored_urbs(&data->intr_anchor); | |
601 | usb_kill_anchored_urbs(&data->bulk_anchor); | |
602 | usb_kill_anchored_urbs(&data->isoc_anchor); | |
603 | } | |
604 | ||
5e23b923 MH |
605 | static int btusb_close(struct hci_dev *hdev) |
606 | { | |
607 | struct btusb_data *data = hdev->driver_data; | |
7bee549e | 608 | int err; |
5e23b923 MH |
609 | |
610 | BT_DBG("%s", hdev->name); | |
611 | ||
612 | if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags)) | |
613 | return 0; | |
614 | ||
e8c3c3d2 | 615 | cancel_work_sync(&data->work); |
404291ac | 616 | cancel_work_sync(&data->waker); |
e8c3c3d2 | 617 | |
9bfa35fe | 618 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); |
5e23b923 | 619 | clear_bit(BTUSB_BULK_RUNNING, &data->flags); |
5e23b923 | 620 | clear_bit(BTUSB_INTR_RUNNING, &data->flags); |
7bee549e ON |
621 | |
622 | btusb_stop_traffic(data); | |
623 | err = usb_autopm_get_interface(data->intf); | |
624 | if (err < 0) | |
7b8e2c1d | 625 | goto failed; |
7bee549e ON |
626 | |
627 | data->intf->needs_remote_wakeup = 0; | |
628 | usb_autopm_put_interface(data->intf); | |
5e23b923 | 629 | |
7b8e2c1d ON |
630 | failed: |
631 | usb_scuttle_anchored_urbs(&data->deferred); | |
5e23b923 MH |
632 | return 0; |
633 | } | |
634 | ||
635 | static int btusb_flush(struct hci_dev *hdev) | |
636 | { | |
637 | struct btusb_data *data = hdev->driver_data; | |
638 | ||
639 | BT_DBG("%s", hdev->name); | |
640 | ||
641 | usb_kill_anchored_urbs(&data->tx_anchor); | |
642 | ||
643 | return 0; | |
644 | } | |
645 | ||
646 | static int btusb_send_frame(struct sk_buff *skb) | |
647 | { | |
648 | struct hci_dev *hdev = (struct hci_dev *) skb->dev; | |
649 | struct btusb_data *data = hdev->driver_data; | |
650 | struct usb_ctrlrequest *dr; | |
651 | struct urb *urb; | |
652 | unsigned int pipe; | |
653 | int err; | |
654 | ||
655 | BT_DBG("%s", hdev->name); | |
656 | ||
657 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
658 | return -EBUSY; | |
659 | ||
660 | switch (bt_cb(skb)->pkt_type) { | |
661 | case HCI_COMMAND_PKT: | |
662 | urb = usb_alloc_urb(0, GFP_ATOMIC); | |
663 | if (!urb) | |
664 | return -ENOMEM; | |
665 | ||
666 | dr = kmalloc(sizeof(*dr), GFP_ATOMIC); | |
667 | if (!dr) { | |
668 | usb_free_urb(urb); | |
669 | return -ENOMEM; | |
670 | } | |
671 | ||
7a9d4020 | 672 | dr->bRequestType = data->cmdreq_type; |
5e23b923 MH |
673 | dr->bRequest = 0; |
674 | dr->wIndex = 0; | |
675 | dr->wValue = 0; | |
676 | dr->wLength = __cpu_to_le16(skb->len); | |
677 | ||
678 | pipe = usb_sndctrlpipe(data->udev, 0x00); | |
679 | ||
680 | usb_fill_control_urb(urb, data->udev, pipe, (void *) dr, | |
681 | skb->data, skb->len, btusb_tx_complete, skb); | |
682 | ||
683 | hdev->stat.cmd_tx++; | |
684 | break; | |
685 | ||
686 | case HCI_ACLDATA_PKT: | |
9bfa35fe MH |
687 | if (!data->bulk_tx_ep || hdev->conn_hash.acl_num < 1) |
688 | return -ENODEV; | |
689 | ||
5e23b923 MH |
690 | urb = usb_alloc_urb(0, GFP_ATOMIC); |
691 | if (!urb) | |
692 | return -ENOMEM; | |
693 | ||
694 | pipe = usb_sndbulkpipe(data->udev, | |
695 | data->bulk_tx_ep->bEndpointAddress); | |
696 | ||
697 | usb_fill_bulk_urb(urb, data->udev, pipe, | |
698 | skb->data, skb->len, btusb_tx_complete, skb); | |
699 | ||
700 | hdev->stat.acl_tx++; | |
701 | break; | |
702 | ||
703 | case HCI_SCODATA_PKT: | |
9bfa35fe MH |
704 | if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1) |
705 | return -ENODEV; | |
706 | ||
707 | urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC); | |
708 | if (!urb) | |
709 | return -ENOMEM; | |
710 | ||
711 | pipe = usb_sndisocpipe(data->udev, | |
712 | data->isoc_tx_ep->bEndpointAddress); | |
713 | ||
714 | urb->dev = data->udev; | |
715 | urb->pipe = pipe; | |
716 | urb->context = skb; | |
7bee549e | 717 | urb->complete = btusb_isoc_tx_complete; |
9bfa35fe MH |
718 | urb->interval = data->isoc_tx_ep->bInterval; |
719 | ||
720 | urb->transfer_flags = URB_ISO_ASAP; | |
721 | urb->transfer_buffer = skb->data; | |
722 | urb->transfer_buffer_length = skb->len; | |
723 | ||
724 | __fill_isoc_descriptor(urb, skb->len, | |
725 | le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize)); | |
726 | ||
5e23b923 | 727 | hdev->stat.sco_tx++; |
7bee549e | 728 | goto skip_waking; |
5e23b923 MH |
729 | |
730 | default: | |
731 | return -EILSEQ; | |
732 | } | |
733 | ||
7bee549e ON |
734 | err = inc_tx(data); |
735 | if (err) { | |
736 | usb_anchor_urb(urb, &data->deferred); | |
737 | schedule_work(&data->waker); | |
738 | err = 0; | |
739 | goto done; | |
740 | } | |
741 | ||
742 | skip_waking: | |
5e23b923 MH |
743 | usb_anchor_urb(urb, &data->tx_anchor); |
744 | ||
745 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
746 | if (err < 0) { | |
747 | BT_ERR("%s urb %p submission failed", hdev->name, urb); | |
748 | kfree(urb->setup_packet); | |
749 | usb_unanchor_urb(urb); | |
7bee549e ON |
750 | } else { |
751 | usb_mark_last_busy(data->udev); | |
5e23b923 MH |
752 | } |
753 | ||
754 | usb_free_urb(urb); | |
755 | ||
7bee549e | 756 | done: |
5e23b923 MH |
757 | return err; |
758 | } | |
759 | ||
760 | static void btusb_destruct(struct hci_dev *hdev) | |
761 | { | |
762 | struct btusb_data *data = hdev->driver_data; | |
763 | ||
764 | BT_DBG("%s", hdev->name); | |
765 | ||
766 | kfree(data); | |
767 | } | |
768 | ||
769 | static void btusb_notify(struct hci_dev *hdev, unsigned int evt) | |
770 | { | |
771 | struct btusb_data *data = hdev->driver_data; | |
772 | ||
773 | BT_DBG("%s evt %d", hdev->name, evt); | |
774 | ||
43c2e57f MH |
775 | if (hdev->conn_hash.sco_num != data->sco_num) { |
776 | data->sco_num = hdev->conn_hash.sco_num; | |
777 | schedule_work(&data->work); | |
a780efa8 | 778 | } |
5e23b923 MH |
779 | } |
780 | ||
9bfa35fe MH |
781 | static int inline __set_isoc_interface(struct hci_dev *hdev, int altsetting) |
782 | { | |
783 | struct btusb_data *data = hdev->driver_data; | |
784 | struct usb_interface *intf = data->isoc; | |
785 | struct usb_endpoint_descriptor *ep_desc; | |
786 | int i, err; | |
787 | ||
788 | if (!data->isoc) | |
789 | return -ENODEV; | |
790 | ||
791 | err = usb_set_interface(data->udev, 1, altsetting); | |
792 | if (err < 0) { | |
793 | BT_ERR("%s setting interface failed (%d)", hdev->name, -err); | |
794 | return err; | |
795 | } | |
796 | ||
797 | data->isoc_altsetting = altsetting; | |
798 | ||
799 | data->isoc_tx_ep = NULL; | |
800 | data->isoc_rx_ep = NULL; | |
801 | ||
802 | for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { | |
803 | ep_desc = &intf->cur_altsetting->endpoint[i].desc; | |
804 | ||
805 | if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) { | |
806 | data->isoc_tx_ep = ep_desc; | |
807 | continue; | |
808 | } | |
809 | ||
810 | if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) { | |
811 | data->isoc_rx_ep = ep_desc; | |
812 | continue; | |
813 | } | |
814 | } | |
815 | ||
816 | if (!data->isoc_tx_ep || !data->isoc_rx_ep) { | |
817 | BT_ERR("%s invalid SCO descriptors", hdev->name); | |
818 | return -ENODEV; | |
819 | } | |
820 | ||
821 | return 0; | |
822 | } | |
823 | ||
5e23b923 MH |
824 | static void btusb_work(struct work_struct *work) |
825 | { | |
826 | struct btusb_data *data = container_of(work, struct btusb_data, work); | |
827 | struct hci_dev *hdev = data->hdev; | |
7bee549e | 828 | int err; |
5e23b923 | 829 | |
9bfa35fe | 830 | if (hdev->conn_hash.sco_num > 0) { |
08b8b6c4 | 831 | if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) { |
8efdd0cd | 832 | err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf); |
7bee549e ON |
833 | if (err < 0) { |
834 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); | |
835 | usb_kill_anchored_urbs(&data->isoc_anchor); | |
836 | return; | |
837 | } | |
838 | ||
08b8b6c4 | 839 | set_bit(BTUSB_DID_ISO_RESUME, &data->flags); |
7bee549e | 840 | } |
9bfa35fe MH |
841 | if (data->isoc_altsetting != 2) { |
842 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); | |
843 | usb_kill_anchored_urbs(&data->isoc_anchor); | |
844 | ||
845 | if (__set_isoc_interface(hdev, 2) < 0) | |
846 | return; | |
847 | } | |
848 | ||
849 | if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) { | |
2eda66f4 | 850 | if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0) |
9bfa35fe MH |
851 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); |
852 | else | |
2eda66f4 | 853 | btusb_submit_isoc_urb(hdev, GFP_KERNEL); |
9bfa35fe MH |
854 | } |
855 | } else { | |
856 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); | |
857 | usb_kill_anchored_urbs(&data->isoc_anchor); | |
858 | ||
859 | __set_isoc_interface(hdev, 0); | |
08b8b6c4 | 860 | if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags)) |
8efdd0cd | 861 | usb_autopm_put_interface(data->isoc ? data->isoc : data->intf); |
5e23b923 MH |
862 | } |
863 | } | |
864 | ||
7bee549e ON |
865 | static void btusb_waker(struct work_struct *work) |
866 | { | |
867 | struct btusb_data *data = container_of(work, struct btusb_data, waker); | |
868 | int err; | |
869 | ||
870 | err = usb_autopm_get_interface(data->intf); | |
871 | if (err < 0) | |
872 | return; | |
873 | ||
874 | usb_autopm_put_interface(data->intf); | |
875 | } | |
876 | ||
5e23b923 MH |
877 | static int btusb_probe(struct usb_interface *intf, |
878 | const struct usb_device_id *id) | |
879 | { | |
880 | struct usb_endpoint_descriptor *ep_desc; | |
881 | struct btusb_data *data; | |
882 | struct hci_dev *hdev; | |
883 | int i, err; | |
884 | ||
885 | BT_DBG("intf %p id %p", intf, id); | |
886 | ||
cfeb4145 | 887 | /* interface numbers are hardcoded in the spec */ |
5e23b923 MH |
888 | if (intf->cur_altsetting->desc.bInterfaceNumber != 0) |
889 | return -ENODEV; | |
890 | ||
891 | if (!id->driver_info) { | |
892 | const struct usb_device_id *match; | |
893 | match = usb_match_id(intf, blacklist_table); | |
894 | if (match) | |
895 | id = match; | |
896 | } | |
897 | ||
cfeb4145 MH |
898 | if (id->driver_info == BTUSB_IGNORE) |
899 | return -ENODEV; | |
900 | ||
901 | if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER) | |
902 | return -ENODEV; | |
903 | ||
904 | if (ignore_csr && id->driver_info & BTUSB_CSR) | |
905 | return -ENODEV; | |
906 | ||
907 | if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER) | |
908 | return -ENODEV; | |
909 | ||
5e23b923 MH |
910 | data = kzalloc(sizeof(*data), GFP_KERNEL); |
911 | if (!data) | |
912 | return -ENOMEM; | |
913 | ||
914 | for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { | |
915 | ep_desc = &intf->cur_altsetting->endpoint[i].desc; | |
916 | ||
917 | if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) { | |
918 | data->intr_ep = ep_desc; | |
919 | continue; | |
920 | } | |
921 | ||
922 | if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { | |
923 | data->bulk_tx_ep = ep_desc; | |
924 | continue; | |
925 | } | |
926 | ||
927 | if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { | |
928 | data->bulk_rx_ep = ep_desc; | |
929 | continue; | |
930 | } | |
931 | } | |
932 | ||
933 | if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) { | |
934 | kfree(data); | |
935 | return -ENODEV; | |
936 | } | |
937 | ||
7a9d4020 MH |
938 | data->cmdreq_type = USB_TYPE_CLASS; |
939 | ||
5e23b923 | 940 | data->udev = interface_to_usbdev(intf); |
5fbcd260 | 941 | data->intf = intf; |
5e23b923 MH |
942 | |
943 | spin_lock_init(&data->lock); | |
944 | ||
945 | INIT_WORK(&data->work, btusb_work); | |
7bee549e ON |
946 | INIT_WORK(&data->waker, btusb_waker); |
947 | spin_lock_init(&data->txlock); | |
5e23b923 MH |
948 | |
949 | init_usb_anchor(&data->tx_anchor); | |
950 | init_usb_anchor(&data->intr_anchor); | |
951 | init_usb_anchor(&data->bulk_anchor); | |
9bfa35fe | 952 | init_usb_anchor(&data->isoc_anchor); |
7bee549e | 953 | init_usb_anchor(&data->deferred); |
5e23b923 MH |
954 | |
955 | hdev = hci_alloc_dev(); | |
956 | if (!hdev) { | |
957 | kfree(data); | |
958 | return -ENOMEM; | |
959 | } | |
960 | ||
c13854ce | 961 | hdev->bus = HCI_USB; |
5e23b923 MH |
962 | hdev->driver_data = data; |
963 | ||
964 | data->hdev = hdev; | |
965 | ||
966 | SET_HCIDEV_DEV(hdev, &intf->dev); | |
967 | ||
968 | hdev->open = btusb_open; | |
969 | hdev->close = btusb_close; | |
970 | hdev->flush = btusb_flush; | |
971 | hdev->send = btusb_send_frame; | |
972 | hdev->destruct = btusb_destruct; | |
973 | hdev->notify = btusb_notify; | |
974 | ||
975 | hdev->owner = THIS_MODULE; | |
976 | ||
7a9d4020 | 977 | /* Interface numbers are hardcoded in the specification */ |
9bfa35fe MH |
978 | data->isoc = usb_ifnum_to_if(data->udev, 1); |
979 | ||
7a9d4020 MH |
980 | if (!reset) |
981 | set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks); | |
cfeb4145 MH |
982 | |
983 | if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) { | |
984 | if (!disable_scofix) | |
985 | set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks); | |
986 | } | |
987 | ||
9bfa35fe MH |
988 | if (id->driver_info & BTUSB_BROKEN_ISOC) |
989 | data->isoc = NULL; | |
990 | ||
7a9d4020 MH |
991 | if (id->driver_info & BTUSB_DIGIANSWER) { |
992 | data->cmdreq_type = USB_TYPE_VENDOR; | |
993 | set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks); | |
994 | } | |
995 | ||
996 | if (id->driver_info & BTUSB_CSR) { | |
997 | struct usb_device *udev = data->udev; | |
998 | ||
999 | /* Old firmware would otherwise execute USB reset */ | |
1000 | if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117) | |
1001 | set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks); | |
1002 | } | |
1003 | ||
cfeb4145 | 1004 | if (id->driver_info & BTUSB_SNIFFER) { |
9bfa35fe | 1005 | struct usb_device *udev = data->udev; |
cfeb4145 | 1006 | |
7a9d4020 | 1007 | /* New sniffer firmware has crippled HCI interface */ |
cfeb4145 MH |
1008 | if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997) |
1009 | set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); | |
9bfa35fe MH |
1010 | |
1011 | data->isoc = NULL; | |
cfeb4145 MH |
1012 | } |
1013 | ||
1014 | if (id->driver_info & BTUSB_BCM92035) { | |
1015 | unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 }; | |
1016 | struct sk_buff *skb; | |
1017 | ||
1018 | skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL); | |
1019 | if (skb) { | |
1020 | memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd)); | |
1021 | skb_queue_tail(&hdev->driver_init, skb); | |
1022 | } | |
1023 | } | |
5e23b923 | 1024 | |
9bfa35fe MH |
1025 | if (data->isoc) { |
1026 | err = usb_driver_claim_interface(&btusb_driver, | |
5fbcd260 | 1027 | data->isoc, data); |
9bfa35fe MH |
1028 | if (err < 0) { |
1029 | hci_free_dev(hdev); | |
1030 | kfree(data); | |
1031 | return err; | |
1032 | } | |
1033 | } | |
1034 | ||
5e23b923 MH |
1035 | err = hci_register_dev(hdev); |
1036 | if (err < 0) { | |
1037 | hci_free_dev(hdev); | |
1038 | kfree(data); | |
1039 | return err; | |
1040 | } | |
1041 | ||
1042 | usb_set_intfdata(intf, data); | |
1043 | ||
556ea928 MG |
1044 | usb_enable_autosuspend(interface_to_usbdev(intf)); |
1045 | ||
5e23b923 MH |
1046 | return 0; |
1047 | } | |
1048 | ||
1049 | static void btusb_disconnect(struct usb_interface *intf) | |
1050 | { | |
1051 | struct btusb_data *data = usb_get_intfdata(intf); | |
1052 | struct hci_dev *hdev; | |
1053 | ||
1054 | BT_DBG("intf %p", intf); | |
1055 | ||
1056 | if (!data) | |
1057 | return; | |
1058 | ||
1059 | hdev = data->hdev; | |
1060 | ||
5fbcd260 | 1061 | __hci_dev_hold(hdev); |
9bfa35fe | 1062 | |
5fbcd260 MH |
1063 | usb_set_intfdata(data->intf, NULL); |
1064 | ||
1065 | if (data->isoc) | |
1066 | usb_set_intfdata(data->isoc, NULL); | |
5e23b923 MH |
1067 | |
1068 | hci_unregister_dev(hdev); | |
1069 | ||
5fbcd260 MH |
1070 | if (intf == data->isoc) |
1071 | usb_driver_release_interface(&btusb_driver, data->intf); | |
1072 | else if (data->isoc) | |
1073 | usb_driver_release_interface(&btusb_driver, data->isoc); | |
1074 | ||
1075 | __hci_dev_put(hdev); | |
1076 | ||
5e23b923 MH |
1077 | hci_free_dev(hdev); |
1078 | } | |
1079 | ||
7bee549e | 1080 | #ifdef CONFIG_PM |
6a88adf2 MH |
1081 | static int btusb_suspend(struct usb_interface *intf, pm_message_t message) |
1082 | { | |
1083 | struct btusb_data *data = usb_get_intfdata(intf); | |
1084 | ||
1085 | BT_DBG("intf %p", intf); | |
1086 | ||
1087 | if (data->suspend_count++) | |
1088 | return 0; | |
1089 | ||
7bee549e | 1090 | spin_lock_irq(&data->txlock); |
fb34d537 | 1091 | if (!((message.event & PM_EVENT_AUTO) && data->tx_in_flight)) { |
7bee549e ON |
1092 | set_bit(BTUSB_SUSPENDING, &data->flags); |
1093 | spin_unlock_irq(&data->txlock); | |
1094 | } else { | |
1095 | spin_unlock_irq(&data->txlock); | |
1096 | data->suspend_count--; | |
1097 | return -EBUSY; | |
1098 | } | |
1099 | ||
6a88adf2 MH |
1100 | cancel_work_sync(&data->work); |
1101 | ||
7bee549e | 1102 | btusb_stop_traffic(data); |
6a88adf2 MH |
1103 | usb_kill_anchored_urbs(&data->tx_anchor); |
1104 | ||
6a88adf2 MH |
1105 | return 0; |
1106 | } | |
1107 | ||
7bee549e ON |
1108 | static void play_deferred(struct btusb_data *data) |
1109 | { | |
1110 | struct urb *urb; | |
1111 | int err; | |
1112 | ||
1113 | while ((urb = usb_get_from_anchor(&data->deferred))) { | |
1114 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
1115 | if (err < 0) | |
1116 | break; | |
1117 | ||
1118 | data->tx_in_flight++; | |
1119 | } | |
1120 | usb_scuttle_anchored_urbs(&data->deferred); | |
1121 | } | |
1122 | ||
6a88adf2 MH |
1123 | static int btusb_resume(struct usb_interface *intf) |
1124 | { | |
1125 | struct btusb_data *data = usb_get_intfdata(intf); | |
1126 | struct hci_dev *hdev = data->hdev; | |
7bee549e | 1127 | int err = 0; |
6a88adf2 MH |
1128 | |
1129 | BT_DBG("intf %p", intf); | |
1130 | ||
1131 | if (--data->suspend_count) | |
1132 | return 0; | |
1133 | ||
1134 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
7bee549e | 1135 | goto done; |
6a88adf2 MH |
1136 | |
1137 | if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) { | |
1138 | err = btusb_submit_intr_urb(hdev, GFP_NOIO); | |
1139 | if (err < 0) { | |
1140 | clear_bit(BTUSB_INTR_RUNNING, &data->flags); | |
7bee549e | 1141 | goto failed; |
6a88adf2 MH |
1142 | } |
1143 | } | |
1144 | ||
1145 | if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) { | |
43c2e57f MH |
1146 | err = btusb_submit_bulk_urb(hdev, GFP_NOIO); |
1147 | if (err < 0) { | |
6a88adf2 | 1148 | clear_bit(BTUSB_BULK_RUNNING, &data->flags); |
7bee549e ON |
1149 | goto failed; |
1150 | } | |
1151 | ||
1152 | btusb_submit_bulk_urb(hdev, GFP_NOIO); | |
6a88adf2 MH |
1153 | } |
1154 | ||
1155 | if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) { | |
1156 | if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0) | |
1157 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); | |
1158 | else | |
1159 | btusb_submit_isoc_urb(hdev, GFP_NOIO); | |
1160 | } | |
1161 | ||
7bee549e ON |
1162 | spin_lock_irq(&data->txlock); |
1163 | play_deferred(data); | |
1164 | clear_bit(BTUSB_SUSPENDING, &data->flags); | |
1165 | spin_unlock_irq(&data->txlock); | |
1166 | schedule_work(&data->work); | |
1167 | ||
6a88adf2 | 1168 | return 0; |
7bee549e ON |
1169 | |
1170 | failed: | |
1171 | usb_scuttle_anchored_urbs(&data->deferred); | |
1172 | done: | |
1173 | spin_lock_irq(&data->txlock); | |
1174 | clear_bit(BTUSB_SUSPENDING, &data->flags); | |
1175 | spin_unlock_irq(&data->txlock); | |
1176 | ||
1177 | return err; | |
6a88adf2 | 1178 | } |
7bee549e | 1179 | #endif |
6a88adf2 | 1180 | |
5e23b923 MH |
1181 | static struct usb_driver btusb_driver = { |
1182 | .name = "btusb", | |
1183 | .probe = btusb_probe, | |
1184 | .disconnect = btusb_disconnect, | |
7bee549e | 1185 | #ifdef CONFIG_PM |
6a88adf2 MH |
1186 | .suspend = btusb_suspend, |
1187 | .resume = btusb_resume, | |
7bee549e | 1188 | #endif |
5e23b923 | 1189 | .id_table = btusb_table, |
7bee549e | 1190 | .supports_autosuspend = 1, |
5e23b923 MH |
1191 | }; |
1192 | ||
1193 | static int __init btusb_init(void) | |
1194 | { | |
1195 | BT_INFO("Generic Bluetooth USB driver ver %s", VERSION); | |
1196 | ||
1197 | return usb_register(&btusb_driver); | |
1198 | } | |
1199 | ||
1200 | static void __exit btusb_exit(void) | |
1201 | { | |
1202 | usb_deregister(&btusb_driver); | |
1203 | } | |
1204 | ||
1205 | module_init(btusb_init); | |
1206 | module_exit(btusb_exit); | |
1207 | ||
cfeb4145 MH |
1208 | module_param(ignore_dga, bool, 0644); |
1209 | MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001"); | |
1210 | ||
1211 | module_param(ignore_csr, bool, 0644); | |
1212 | MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001"); | |
1213 | ||
1214 | module_param(ignore_sniffer, bool, 0644); | |
1215 | MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002"); | |
1216 | ||
1217 | module_param(disable_scofix, bool, 0644); | |
1218 | MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size"); | |
1219 | ||
1220 | module_param(force_scofix, bool, 0644); | |
1221 | MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size"); | |
1222 | ||
1223 | module_param(reset, bool, 0644); | |
1224 | MODULE_PARM_DESC(reset, "Send HCI reset command on initialization"); | |
1225 | ||
5e23b923 MH |
1226 | MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); |
1227 | MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION); | |
1228 | MODULE_VERSION(VERSION); | |
1229 | MODULE_LICENSE("GPL"); |