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