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1 | /* |
2 | * |
3 | * Generic Bluetooth USB driver |
4 | * |
5 | * Copyright (C) 2005-2008 Marcel Holtmann <marcel@holtmann.org> |
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/module.h> |
25 | #include <linux/usb.h> |
26 | |
27 | #include <net/bluetooth/bluetooth.h> |
28 | #include <net/bluetooth/hci_core.h> |
29 | |
30 | #define VERSION "0.6" |
31 | |
32 | static bool ignore_dga; |
33 | static bool ignore_csr; |
34 | static bool ignore_sniffer; |
35 | static bool disable_scofix; |
36 | static bool force_scofix; |
37 | |
38 | static bool reset = 1; |
39 | |
40 | static struct usb_driver btusb_driver; |
41 | |
42 | #define BTUSB_IGNORE 0x01 |
43 | #define BTUSB_DIGIANSWER 0x02 |
44 | #define BTUSB_CSR 0x04 |
45 | #define BTUSB_SNIFFER 0x08 |
46 | #define BTUSB_BCM92035 0x10 |
47 | #define BTUSB_BROKEN_ISOC 0x20 |
48 | #define BTUSB_WRONG_SCO_MTU 0x40 |
49 | #define BTUSB_ATH3012 0x80 |
50 | |
51 | static struct usb_device_id btusb_table[] = { |
52 | /* Generic Bluetooth USB device */ |
53 | { USB_DEVICE_INFO(0xe0, 0x01, 0x01) }, |
54 | |
55 | /* Apple-specific (Broadcom) devices */ |
56 | { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01) }, |
57 | |
58 | /* Broadcom SoftSailing reporting vendor specific */ |
59 | { USB_DEVICE(0x0a5c, 0x21e1) }, |
60 | |
61 | /* Apple MacBookPro 7,1 */ |
62 | { USB_DEVICE(0x05ac, 0x8213) }, |
63 | |
64 | /* Apple iMac11,1 */ |
65 | { USB_DEVICE(0x05ac, 0x8215) }, |
66 | |
67 | /* Apple MacBookPro6,2 */ |
68 | { USB_DEVICE(0x05ac, 0x8218) }, |
69 | |
70 | /* Apple MacBookAir3,1, MacBookAir3,2 */ |
71 | { USB_DEVICE(0x05ac, 0x821b) }, |
72 | |
73 | /* Apple MacBookAir4,1 */ |
74 | { USB_DEVICE(0x05ac, 0x821f) }, |
75 | |
76 | /* Apple MacBookPro8,2 */ |
77 | { USB_DEVICE(0x05ac, 0x821a) }, |
78 | |
79 | /* Apple MacMini5,1 */ |
80 | { USB_DEVICE(0x05ac, 0x8281) }, |
81 | |
82 | /* AVM BlueFRITZ! USB v2.0 */ |
83 | { USB_DEVICE(0x057c, 0x3800) }, |
84 | |
85 | /* Bluetooth Ultraport Module from IBM */ |
86 | { USB_DEVICE(0x04bf, 0x030a) }, |
87 | |
88 | /* ALPS Modules with non-standard id */ |
89 | { USB_DEVICE(0x044e, 0x3001) }, |
90 | { USB_DEVICE(0x044e, 0x3002) }, |
91 | |
92 | /* Ericsson with non-standard id */ |
93 | { USB_DEVICE(0x0bdb, 0x1002) }, |
94 | |
95 | /* Canyon CN-BTU1 with HID interfaces */ |
96 | { USB_DEVICE(0x0c10, 0x0000) }, |
97 | |
98 | /* Broadcom BCM20702A0 */ |
99 | { USB_DEVICE(0x0b05, 0x17b5) }, |
100 | { USB_DEVICE(0x04ca, 0x2003) }, |
101 | { USB_DEVICE(0x0489, 0xe042) }, |
102 | { USB_DEVICE(0x413c, 0x8197) }, |
103 | |
104 | /* Foxconn - Hon Hai */ |
105 | { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01) }, |
106 | |
107 | /*Broadcom devices with vendor specific id */ |
108 | { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01) }, |
109 | |
110 | { } /* Terminating entry */ |
111 | }; |
112 | |
113 | MODULE_DEVICE_TABLE(usb, btusb_table); |
114 | |
115 | static struct usb_device_id blacklist_table[] = { |
116 | /* CSR BlueCore devices */ |
117 | { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR }, |
118 | |
119 | /* Broadcom BCM2033 without firmware */ |
120 | { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE }, |
121 | |
122 | /* Atheros 3011 with sflash firmware */ |
123 | { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE }, |
124 | { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE }, |
125 | { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE }, |
126 | { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE }, |
127 | { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE }, |
128 | { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE }, |
129 | |
130 | /* Atheros AR9285 Malbec with sflash firmware */ |
131 | { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE }, |
132 | |
133 | /* Atheros 3012 with sflash firmware */ |
134 | { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 }, |
135 | { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 }, |
136 | { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 }, |
137 | { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 }, |
138 | { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 }, |
139 | { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 }, |
140 | { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 }, |
141 | { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 }, |
142 | { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 }, |
143 | { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 }, |
144 | { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 }, |
145 | { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 }, |
146 | { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 }, |
147 | { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 }, |
148 | { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 }, |
149 | { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 }, |
150 | { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 }, |
151 | |
152 | /* Atheros AR5BBU12 with sflash firmware */ |
153 | { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE }, |
154 | |
155 | /* Atheros AR5BBU12 with sflash firmware */ |
156 | { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 }, |
157 | { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 }, |
158 | |
159 | /* Broadcom BCM2035 */ |
160 | { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU }, |
161 | { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU }, |
162 | { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 }, |
163 | |
164 | /* Broadcom BCM2045 */ |
165 | { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU }, |
166 | { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU }, |
167 | |
168 | /* IBM/Lenovo ThinkPad with Broadcom chip */ |
169 | { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU }, |
170 | { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU }, |
171 | |
172 | /* HP laptop with Broadcom chip */ |
173 | { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU }, |
174 | |
175 | /* Dell laptop with Broadcom chip */ |
176 | { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU }, |
177 | |
178 | /* Dell Wireless 370 and 410 devices */ |
179 | { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU }, |
180 | { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU }, |
181 | |
182 | /* Belkin F8T012 and F8T013 devices */ |
183 | { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU }, |
184 | { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU }, |
185 | |
186 | /* Asus WL-BTD202 device */ |
187 | { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU }, |
188 | |
189 | /* Kensington Bluetooth USB adapter */ |
190 | { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU }, |
191 | |
192 | /* RTX Telecom based adapters with buggy SCO support */ |
193 | { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC }, |
194 | { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC }, |
195 | |
196 | /* CONWISE Technology based adapters with buggy SCO support */ |
197 | { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC }, |
198 | |
199 | /* Digianswer devices */ |
200 | { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER }, |
201 | { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE }, |
202 | |
203 | /* CSR BlueCore Bluetooth Sniffer */ |
204 | { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER }, |
205 | |
206 | /* Frontline ComProbe Bluetooth Sniffer */ |
207 | { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER }, |
208 | |
209 | { } /* Terminating entry */ |
210 | }; |
211 | |
212 | #define BTUSB_MAX_ISOC_FRAMES 10 |
213 | |
214 | #define BTUSB_INTR_RUNNING 0 |
215 | #define BTUSB_BULK_RUNNING 1 |
216 | #define BTUSB_ISOC_RUNNING 2 |
217 | #define BTUSB_SUSPENDING 3 |
218 | #define BTUSB_DID_ISO_RESUME 4 |
219 | |
220 | struct btusb_data { |
221 | struct hci_dev *hdev; |
222 | struct usb_device *udev; |
223 | struct usb_interface *intf; |
224 | struct usb_interface *isoc; |
225 | |
226 | spinlock_t lock; |
227 | |
228 | unsigned long flags; |
229 | |
230 | struct work_struct work; |
231 | struct work_struct waker; |
232 | |
233 | struct usb_anchor tx_anchor; |
234 | struct usb_anchor intr_anchor; |
235 | struct usb_anchor bulk_anchor; |
236 | struct usb_anchor isoc_anchor; |
237 | struct usb_anchor deferred; |
238 | int tx_in_flight; |
239 | spinlock_t txlock; |
240 | |
241 | struct usb_endpoint_descriptor *intr_ep; |
242 | struct usb_endpoint_descriptor *bulk_tx_ep; |
243 | struct usb_endpoint_descriptor *bulk_rx_ep; |
244 | struct usb_endpoint_descriptor *isoc_tx_ep; |
245 | struct usb_endpoint_descriptor *isoc_rx_ep; |
246 | |
247 | __u8 cmdreq_type; |
248 | |
249 | unsigned int sco_num; |
250 | int isoc_altsetting; |
251 | int suspend_count; |
252 | }; |
253 | |
254 | static int inc_tx(struct btusb_data *data) |
255 | { |
256 | unsigned long flags; |
257 | int rv; |
258 | |
259 | spin_lock_irqsave(&data->txlock, flags); |
260 | rv = test_bit(BTUSB_SUSPENDING, &data->flags); |
261 | if (!rv) |
262 | data->tx_in_flight++; |
263 | spin_unlock_irqrestore(&data->txlock, flags); |
264 | |
265 | return rv; |
266 | } |
267 | |
268 | static void btusb_intr_complete(struct urb *urb) |
269 | { |
270 | struct hci_dev *hdev = urb->context; |
271 | struct btusb_data *data = hci_get_drvdata(hdev); |
272 | int err; |
273 | |
274 | BT_DBG("%s urb %p status %d count %d", hdev->name, |
275 | urb, urb->status, urb->actual_length); |
276 | |
277 | if (!test_bit(HCI_RUNNING, &hdev->flags)) |
278 | return; |
279 | |
280 | if (urb->status == 0) { |
281 | hdev->stat.byte_rx += urb->actual_length; |
282 | |
283 | if (hci_recv_fragment(hdev, HCI_EVENT_PKT, |
284 | urb->transfer_buffer, |
285 | urb->actual_length) < 0) { |
286 | BT_ERR("%s corrupted event packet", hdev->name); |
287 | hdev->stat.err_rx++; |
288 | } |
289 | } |
290 | |
291 | if (!test_bit(BTUSB_INTR_RUNNING, &data->flags)) |
292 | return; |
293 | |
294 | usb_mark_last_busy(data->udev); |
295 | usb_anchor_urb(urb, &data->intr_anchor); |
296 | |
297 | err = usb_submit_urb(urb, GFP_ATOMIC); |
298 | if (err < 0) { |
299 | /* -EPERM: urb is being killed; |
300 | * -ENODEV: device got disconnected */ |
301 | if (err != -EPERM && err != -ENODEV) |
302 | BT_ERR("%s urb %p failed to resubmit (%d)", |
303 | hdev->name, urb, -err); |
304 | usb_unanchor_urb(urb); |
305 | } |
306 | } |
307 | |
308 | static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags) |
309 | { |
310 | struct btusb_data *data = hci_get_drvdata(hdev); |
311 | struct urb *urb; |
312 | unsigned char *buf; |
313 | unsigned int pipe; |
314 | int err, size; |
315 | |
316 | BT_DBG("%s", hdev->name); |
317 | |
318 | if (!data->intr_ep) |
319 | return -ENODEV; |
320 | |
321 | urb = usb_alloc_urb(0, mem_flags); |
322 | if (!urb) |
323 | return -ENOMEM; |
324 | |
325 | size = le16_to_cpu(data->intr_ep->wMaxPacketSize); |
326 | |
327 | buf = kmalloc(size, mem_flags); |
328 | if (!buf) { |
329 | usb_free_urb(urb); |
330 | return -ENOMEM; |
331 | } |
332 | |
333 | pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress); |
334 | |
335 | usb_fill_int_urb(urb, data->udev, pipe, buf, size, |
336 | btusb_intr_complete, hdev, |
337 | data->intr_ep->bInterval); |
338 | |
339 | urb->transfer_flags |= URB_FREE_BUFFER; |
340 | |
341 | usb_anchor_urb(urb, &data->intr_anchor); |
342 | |
343 | err = usb_submit_urb(urb, mem_flags); |
344 | if (err < 0) { |
345 | if (err != -EPERM && err != -ENODEV) |
346 | BT_ERR("%s urb %p submission failed (%d)", |
347 | hdev->name, urb, -err); |
348 | usb_unanchor_urb(urb); |
349 | } |
350 | |
351 | usb_free_urb(urb); |
352 | |
353 | return err; |
354 | } |
355 | |
356 | static void btusb_bulk_complete(struct urb *urb) |
357 | { |
358 | struct hci_dev *hdev = urb->context; |
359 | struct btusb_data *data = hci_get_drvdata(hdev); |
360 | int err; |
361 | |
362 | BT_DBG("%s urb %p status %d count %d", hdev->name, |
363 | urb, urb->status, urb->actual_length); |
364 | |
365 | if (!test_bit(HCI_RUNNING, &hdev->flags)) |
366 | return; |
367 | |
368 | if (urb->status == 0) { |
369 | hdev->stat.byte_rx += urb->actual_length; |
370 | |
371 | if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT, |
372 | urb->transfer_buffer, |
373 | urb->actual_length) < 0) { |
374 | BT_ERR("%s corrupted ACL packet", hdev->name); |
375 | hdev->stat.err_rx++; |
376 | } |
377 | } |
378 | |
379 | if (!test_bit(BTUSB_BULK_RUNNING, &data->flags)) |
380 | return; |
381 | |
382 | usb_anchor_urb(urb, &data->bulk_anchor); |
383 | usb_mark_last_busy(data->udev); |
384 | |
385 | err = usb_submit_urb(urb, GFP_ATOMIC); |
386 | if (err < 0) { |
387 | /* -EPERM: urb is being killed; |
388 | * -ENODEV: device got disconnected */ |
389 | if (err != -EPERM && err != -ENODEV) |
390 | BT_ERR("%s urb %p failed to resubmit (%d)", |
391 | hdev->name, urb, -err); |
392 | usb_unanchor_urb(urb); |
393 | } |
394 | } |
395 | |
396 | static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags) |
397 | { |
398 | struct btusb_data *data = hci_get_drvdata(hdev); |
399 | struct urb *urb; |
400 | unsigned char *buf; |
401 | unsigned int pipe; |
402 | int err, size = HCI_MAX_FRAME_SIZE; |
403 | |
404 | BT_DBG("%s", hdev->name); |
405 | |
406 | if (!data->bulk_rx_ep) |
407 | return -ENODEV; |
408 | |
409 | urb = usb_alloc_urb(0, mem_flags); |
410 | if (!urb) |
411 | return -ENOMEM; |
412 | |
413 | buf = kmalloc(size, mem_flags); |
414 | if (!buf) { |
415 | usb_free_urb(urb); |
416 | return -ENOMEM; |
417 | } |
418 | |
419 | pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress); |
420 | |
421 | usb_fill_bulk_urb(urb, data->udev, pipe, |
422 | buf, size, btusb_bulk_complete, hdev); |
423 | |
424 | urb->transfer_flags |= URB_FREE_BUFFER; |
425 | |
426 | usb_mark_last_busy(data->udev); |
427 | usb_anchor_urb(urb, &data->bulk_anchor); |
428 | |
429 | err = usb_submit_urb(urb, mem_flags); |
430 | if (err < 0) { |
431 | if (err != -EPERM && err != -ENODEV) |
432 | BT_ERR("%s urb %p submission failed (%d)", |
433 | hdev->name, urb, -err); |
434 | usb_unanchor_urb(urb); |
435 | } |
436 | |
437 | usb_free_urb(urb); |
438 | |
439 | return err; |
440 | } |
441 | |
442 | static void btusb_isoc_complete(struct urb *urb) |
443 | { |
444 | struct hci_dev *hdev = urb->context; |
445 | struct btusb_data *data = hci_get_drvdata(hdev); |
446 | int i, err; |
447 | |
448 | BT_DBG("%s urb %p status %d count %d", hdev->name, |
449 | urb, urb->status, urb->actual_length); |
450 | |
451 | if (!test_bit(HCI_RUNNING, &hdev->flags)) |
452 | return; |
453 | |
454 | if (urb->status == 0) { |
455 | for (i = 0; i < urb->number_of_packets; i++) { |
456 | unsigned int offset = urb->iso_frame_desc[i].offset; |
457 | unsigned int length = urb->iso_frame_desc[i].actual_length; |
458 | |
459 | if (urb->iso_frame_desc[i].status) |
460 | continue; |
461 | |
462 | hdev->stat.byte_rx += length; |
463 | |
464 | if (hci_recv_fragment(hdev, HCI_SCODATA_PKT, |
465 | urb->transfer_buffer + offset, |
466 | length) < 0) { |
467 | BT_ERR("%s corrupted SCO packet", hdev->name); |
468 | hdev->stat.err_rx++; |
469 | } |
470 | } |
471 | } |
472 | |
473 | if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags)) |
474 | return; |
475 | |
476 | usb_anchor_urb(urb, &data->isoc_anchor); |
477 | |
478 | err = usb_submit_urb(urb, GFP_ATOMIC); |
479 | if (err < 0) { |
480 | /* -EPERM: urb is being killed; |
481 | * -ENODEV: device got disconnected */ |
482 | if (err != -EPERM && err != -ENODEV) |
483 | BT_ERR("%s urb %p failed to resubmit (%d)", |
484 | hdev->name, urb, -err); |
485 | usb_unanchor_urb(urb); |
486 | } |
487 | } |
488 | |
489 | static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu) |
490 | { |
491 | int i, offset = 0; |
492 | |
493 | BT_DBG("len %d mtu %d", len, mtu); |
494 | |
495 | for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu; |
496 | i++, offset += mtu, len -= mtu) { |
497 | urb->iso_frame_desc[i].offset = offset; |
498 | urb->iso_frame_desc[i].length = mtu; |
499 | } |
500 | |
501 | if (len && i < BTUSB_MAX_ISOC_FRAMES) { |
502 | urb->iso_frame_desc[i].offset = offset; |
503 | urb->iso_frame_desc[i].length = len; |
504 | i++; |
505 | } |
506 | |
507 | urb->number_of_packets = i; |
508 | } |
509 | |
510 | static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags) |
511 | { |
512 | struct btusb_data *data = hci_get_drvdata(hdev); |
513 | struct urb *urb; |
514 | unsigned char *buf; |
515 | unsigned int pipe; |
516 | int err, size; |
517 | |
518 | BT_DBG("%s", hdev->name); |
519 | |
520 | if (!data->isoc_rx_ep) |
521 | return -ENODEV; |
522 | |
523 | urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags); |
524 | if (!urb) |
525 | return -ENOMEM; |
526 | |
527 | size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) * |
528 | BTUSB_MAX_ISOC_FRAMES; |
529 | |
530 | buf = kmalloc(size, mem_flags); |
531 | if (!buf) { |
532 | usb_free_urb(urb); |
533 | return -ENOMEM; |
534 | } |
535 | |
536 | pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress); |
537 | |
538 | usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete, |
539 | hdev, data->isoc_rx_ep->bInterval); |
540 | |
541 | urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP; |
542 | |
543 | __fill_isoc_descriptor(urb, size, |
544 | le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize)); |
545 | |
546 | usb_anchor_urb(urb, &data->isoc_anchor); |
547 | |
548 | err = usb_submit_urb(urb, mem_flags); |
549 | if (err < 0) { |
550 | if (err != -EPERM && err != -ENODEV) |
551 | BT_ERR("%s urb %p submission failed (%d)", |
552 | hdev->name, urb, -err); |
553 | usb_unanchor_urb(urb); |
554 | } |
555 | |
556 | usb_free_urb(urb); |
557 | |
558 | return err; |
559 | } |
560 | |
561 | static void btusb_tx_complete(struct urb *urb) |
562 | { |
563 | struct sk_buff *skb = urb->context; |
564 | struct hci_dev *hdev = (struct hci_dev *) skb->dev; |
565 | struct btusb_data *data = hci_get_drvdata(hdev); |
566 | |
567 | BT_DBG("%s urb %p status %d count %d", hdev->name, |
568 | urb, urb->status, urb->actual_length); |
569 | |
570 | if (!test_bit(HCI_RUNNING, &hdev->flags)) |
571 | goto done; |
572 | |
573 | if (!urb->status) |
574 | hdev->stat.byte_tx += urb->transfer_buffer_length; |
575 | else |
576 | hdev->stat.err_tx++; |
577 | |
578 | done: |
579 | spin_lock(&data->txlock); |
580 | data->tx_in_flight--; |
581 | spin_unlock(&data->txlock); |
582 | |
583 | kfree(urb->setup_packet); |
584 | |
585 | kfree_skb(skb); |
586 | } |
587 | |
588 | static void btusb_isoc_tx_complete(struct urb *urb) |
589 | { |
590 | struct sk_buff *skb = urb->context; |
591 | struct hci_dev *hdev = (struct hci_dev *) skb->dev; |
592 | |
593 | BT_DBG("%s urb %p status %d count %d", hdev->name, |
594 | urb, urb->status, urb->actual_length); |
595 | |
596 | if (!test_bit(HCI_RUNNING, &hdev->flags)) |
597 | goto done; |
598 | |
599 | if (!urb->status) |
600 | hdev->stat.byte_tx += urb->transfer_buffer_length; |
601 | else |
602 | hdev->stat.err_tx++; |
603 | |
604 | done: |
605 | kfree(urb->setup_packet); |
606 | |
607 | kfree_skb(skb); |
608 | } |
609 | |
610 | static int btusb_open(struct hci_dev *hdev) |
611 | { |
612 | struct btusb_data *data = hci_get_drvdata(hdev); |
613 | int err; |
614 | |
615 | BT_DBG("%s", hdev->name); |
616 | |
617 | err = usb_autopm_get_interface(data->intf); |
618 | if (err < 0) |
619 | return err; |
620 | |
621 | data->intf->needs_remote_wakeup = 1; |
622 | |
623 | if (test_and_set_bit(HCI_RUNNING, &hdev->flags)) |
624 | goto done; |
625 | |
626 | if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags)) |
627 | goto done; |
628 | |
629 | err = btusb_submit_intr_urb(hdev, GFP_KERNEL); |
630 | if (err < 0) |
631 | goto failed; |
632 | |
633 | err = btusb_submit_bulk_urb(hdev, GFP_KERNEL); |
634 | if (err < 0) { |
635 | usb_kill_anchored_urbs(&data->intr_anchor); |
636 | goto failed; |
637 | } |
638 | |
639 | set_bit(BTUSB_BULK_RUNNING, &data->flags); |
640 | btusb_submit_bulk_urb(hdev, GFP_KERNEL); |
641 | |
642 | done: |
643 | usb_autopm_put_interface(data->intf); |
644 | return 0; |
645 | |
646 | failed: |
647 | clear_bit(BTUSB_INTR_RUNNING, &data->flags); |
648 | clear_bit(HCI_RUNNING, &hdev->flags); |
649 | usb_autopm_put_interface(data->intf); |
650 | return err; |
651 | } |
652 | |
653 | static void btusb_stop_traffic(struct btusb_data *data) |
654 | { |
655 | usb_kill_anchored_urbs(&data->intr_anchor); |
656 | usb_kill_anchored_urbs(&data->bulk_anchor); |
657 | usb_kill_anchored_urbs(&data->isoc_anchor); |
658 | } |
659 | |
660 | static int btusb_close(struct hci_dev *hdev) |
661 | { |
662 | struct btusb_data *data = hci_get_drvdata(hdev); |
663 | int err; |
664 | |
665 | BT_DBG("%s", hdev->name); |
666 | |
667 | if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags)) |
668 | return 0; |
669 | |
670 | cancel_work_sync(&data->work); |
671 | cancel_work_sync(&data->waker); |
672 | |
673 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); |
674 | clear_bit(BTUSB_BULK_RUNNING, &data->flags); |
675 | clear_bit(BTUSB_INTR_RUNNING, &data->flags); |
676 | |
677 | btusb_stop_traffic(data); |
678 | err = usb_autopm_get_interface(data->intf); |
679 | if (err < 0) |
680 | goto failed; |
681 | |
682 | data->intf->needs_remote_wakeup = 0; |
683 | usb_autopm_put_interface(data->intf); |
684 | |
685 | failed: |
686 | usb_scuttle_anchored_urbs(&data->deferred); |
687 | return 0; |
688 | } |
689 | |
690 | static int btusb_flush(struct hci_dev *hdev) |
691 | { |
692 | struct btusb_data *data = hci_get_drvdata(hdev); |
693 | |
694 | BT_DBG("%s", hdev->name); |
695 | |
696 | usb_kill_anchored_urbs(&data->tx_anchor); |
697 | |
698 | return 0; |
699 | } |
700 | |
701 | static int btusb_send_frame(struct sk_buff *skb) |
702 | { |
703 | struct hci_dev *hdev = (struct hci_dev *) skb->dev; |
704 | struct btusb_data *data = hci_get_drvdata(hdev); |
705 | struct usb_ctrlrequest *dr; |
706 | struct urb *urb; |
707 | unsigned int pipe; |
708 | int err; |
709 | |
710 | BT_DBG("%s", hdev->name); |
711 | |
712 | if (!test_bit(HCI_RUNNING, &hdev->flags)) |
713 | return -EBUSY; |
714 | |
715 | switch (bt_cb(skb)->pkt_type) { |
716 | case HCI_COMMAND_PKT: |
717 | urb = usb_alloc_urb(0, GFP_ATOMIC); |
718 | if (!urb) |
719 | return -ENOMEM; |
720 | |
721 | dr = kmalloc(sizeof(*dr), GFP_ATOMIC); |
722 | if (!dr) { |
723 | usb_free_urb(urb); |
724 | return -ENOMEM; |
725 | } |
726 | |
727 | dr->bRequestType = data->cmdreq_type; |
728 | dr->bRequest = 0; |
729 | dr->wIndex = 0; |
730 | dr->wValue = 0; |
731 | dr->wLength = __cpu_to_le16(skb->len); |
732 | |
733 | pipe = usb_sndctrlpipe(data->udev, 0x00); |
734 | |
735 | usb_fill_control_urb(urb, data->udev, pipe, (void *) dr, |
736 | skb->data, skb->len, btusb_tx_complete, skb); |
737 | |
738 | hdev->stat.cmd_tx++; |
739 | break; |
740 | |
741 | case HCI_ACLDATA_PKT: |
742 | if (!data->bulk_tx_ep) |
743 | return -ENODEV; |
744 | |
745 | urb = usb_alloc_urb(0, GFP_ATOMIC); |
746 | if (!urb) |
747 | return -ENOMEM; |
748 | |
749 | pipe = usb_sndbulkpipe(data->udev, |
750 | data->bulk_tx_ep->bEndpointAddress); |
751 | |
752 | usb_fill_bulk_urb(urb, data->udev, pipe, |
753 | skb->data, skb->len, btusb_tx_complete, skb); |
754 | |
755 | hdev->stat.acl_tx++; |
756 | break; |
757 | |
758 | case HCI_SCODATA_PKT: |
759 | if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1) |
760 | return -ENODEV; |
761 | |
762 | urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC); |
763 | if (!urb) |
764 | return -ENOMEM; |
765 | |
766 | pipe = usb_sndisocpipe(data->udev, |
767 | data->isoc_tx_ep->bEndpointAddress); |
768 | |
769 | usb_fill_int_urb(urb, data->udev, pipe, |
770 | skb->data, skb->len, btusb_isoc_tx_complete, |
771 | skb, data->isoc_tx_ep->bInterval); |
772 | |
773 | urb->transfer_flags = URB_ISO_ASAP; |
774 | |
775 | __fill_isoc_descriptor(urb, skb->len, |
776 | le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize)); |
777 | |
778 | hdev->stat.sco_tx++; |
779 | goto skip_waking; |
780 | |
781 | default: |
782 | return -EILSEQ; |
783 | } |
784 | |
785 | err = inc_tx(data); |
786 | if (err) { |
787 | usb_anchor_urb(urb, &data->deferred); |
788 | schedule_work(&data->waker); |
789 | err = 0; |
790 | goto done; |
791 | } |
792 | |
793 | skip_waking: |
794 | usb_anchor_urb(urb, &data->tx_anchor); |
795 | |
796 | err = usb_submit_urb(urb, GFP_ATOMIC); |
797 | if (err < 0) { |
798 | if (err != -EPERM && err != -ENODEV) |
799 | BT_ERR("%s urb %p submission failed (%d)", |
800 | hdev->name, urb, -err); |
801 | kfree(urb->setup_packet); |
802 | usb_unanchor_urb(urb); |
803 | } else { |
804 | usb_mark_last_busy(data->udev); |
805 | } |
806 | |
807 | done: |
808 | usb_free_urb(urb); |
809 | return err; |
810 | } |
811 | |
812 | static void btusb_notify(struct hci_dev *hdev, unsigned int evt) |
813 | { |
814 | struct btusb_data *data = hci_get_drvdata(hdev); |
815 | |
816 | BT_DBG("%s evt %d", hdev->name, evt); |
817 | |
818 | if (hdev->conn_hash.sco_num != data->sco_num) { |
819 | data->sco_num = hdev->conn_hash.sco_num; |
820 | schedule_work(&data->work); |
821 | } |
822 | } |
823 | |
824 | static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting) |
825 | { |
826 | struct btusb_data *data = hci_get_drvdata(hdev); |
827 | struct usb_interface *intf = data->isoc; |
828 | struct usb_endpoint_descriptor *ep_desc; |
829 | int i, err; |
830 | |
831 | if (!data->isoc) |
832 | return -ENODEV; |
833 | |
834 | err = usb_set_interface(data->udev, 1, altsetting); |
835 | if (err < 0) { |
836 | BT_ERR("%s setting interface failed (%d)", hdev->name, -err); |
837 | return err; |
838 | } |
839 | |
840 | data->isoc_altsetting = altsetting; |
841 | |
842 | data->isoc_tx_ep = NULL; |
843 | data->isoc_rx_ep = NULL; |
844 | |
845 | for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { |
846 | ep_desc = &intf->cur_altsetting->endpoint[i].desc; |
847 | |
848 | if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) { |
849 | data->isoc_tx_ep = ep_desc; |
850 | continue; |
851 | } |
852 | |
853 | if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) { |
854 | data->isoc_rx_ep = ep_desc; |
855 | continue; |
856 | } |
857 | } |
858 | |
859 | if (!data->isoc_tx_ep || !data->isoc_rx_ep) { |
860 | BT_ERR("%s invalid SCO descriptors", hdev->name); |
861 | return -ENODEV; |
862 | } |
863 | |
864 | return 0; |
865 | } |
866 | |
867 | static void btusb_work(struct work_struct *work) |
868 | { |
869 | struct btusb_data *data = container_of(work, struct btusb_data, work); |
870 | struct hci_dev *hdev = data->hdev; |
871 | int new_alts; |
872 | int err; |
873 | |
874 | if (hdev->conn_hash.sco_num > 0) { |
875 | if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) { |
876 | err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf); |
877 | if (err < 0) { |
878 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); |
879 | usb_kill_anchored_urbs(&data->isoc_anchor); |
880 | return; |
881 | } |
882 | |
883 | set_bit(BTUSB_DID_ISO_RESUME, &data->flags); |
884 | } |
885 | |
886 | if (hdev->voice_setting & 0x0020) { |
887 | static const int alts[3] = { 2, 4, 5 }; |
888 | new_alts = alts[hdev->conn_hash.sco_num - 1]; |
889 | } else { |
890 | new_alts = hdev->conn_hash.sco_num; |
891 | } |
892 | |
893 | if (data->isoc_altsetting != new_alts) { |
894 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); |
895 | usb_kill_anchored_urbs(&data->isoc_anchor); |
896 | |
897 | if (__set_isoc_interface(hdev, new_alts) < 0) |
898 | return; |
899 | } |
900 | |
901 | if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) { |
902 | if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0) |
903 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); |
904 | else |
905 | btusb_submit_isoc_urb(hdev, GFP_KERNEL); |
906 | } |
907 | } else { |
908 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); |
909 | usb_kill_anchored_urbs(&data->isoc_anchor); |
910 | |
911 | __set_isoc_interface(hdev, 0); |
912 | if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags)) |
913 | usb_autopm_put_interface(data->isoc ? data->isoc : data->intf); |
914 | } |
915 | } |
916 | |
917 | static void btusb_waker(struct work_struct *work) |
918 | { |
919 | struct btusb_data *data = container_of(work, struct btusb_data, waker); |
920 | int err; |
921 | |
922 | err = usb_autopm_get_interface(data->intf); |
923 | if (err < 0) |
924 | return; |
925 | |
926 | usb_autopm_put_interface(data->intf); |
927 | } |
928 | |
929 | static int btusb_probe(struct usb_interface *intf, |
930 | const struct usb_device_id *id) |
931 | { |
932 | struct usb_endpoint_descriptor *ep_desc; |
933 | struct btusb_data *data; |
934 | struct hci_dev *hdev; |
935 | int i, err; |
936 | |
937 | BT_DBG("intf %p id %p", intf, id); |
938 | |
939 | /* interface numbers are hardcoded in the spec */ |
940 | if (intf->cur_altsetting->desc.bInterfaceNumber != 0) |
941 | return -ENODEV; |
942 | |
943 | if (!id->driver_info) { |
944 | const struct usb_device_id *match; |
945 | match = usb_match_id(intf, blacklist_table); |
946 | if (match) |
947 | id = match; |
948 | } |
949 | |
950 | if (id->driver_info == BTUSB_IGNORE) |
951 | return -ENODEV; |
952 | |
953 | if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER) |
954 | return -ENODEV; |
955 | |
956 | if (ignore_csr && id->driver_info & BTUSB_CSR) |
957 | return -ENODEV; |
958 | |
959 | if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER) |
960 | return -ENODEV; |
961 | |
962 | if (id->driver_info & BTUSB_ATH3012) { |
963 | struct usb_device *udev = interface_to_usbdev(intf); |
964 | |
965 | /* Old firmware would otherwise let ath3k driver load |
966 | * patch and sysconfig files */ |
967 | if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001) |
968 | return -ENODEV; |
969 | } |
970 | |
971 | data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL); |
972 | if (!data) |
973 | return -ENOMEM; |
974 | |
975 | for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { |
976 | ep_desc = &intf->cur_altsetting->endpoint[i].desc; |
977 | |
978 | if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) { |
979 | data->intr_ep = ep_desc; |
980 | continue; |
981 | } |
982 | |
983 | if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { |
984 | data->bulk_tx_ep = ep_desc; |
985 | continue; |
986 | } |
987 | |
988 | if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { |
989 | data->bulk_rx_ep = ep_desc; |
990 | continue; |
991 | } |
992 | } |
993 | |
994 | if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) |
995 | return -ENODEV; |
996 | |
997 | data->cmdreq_type = USB_TYPE_CLASS; |
998 | |
999 | data->udev = interface_to_usbdev(intf); |
1000 | data->intf = intf; |
1001 | |
1002 | spin_lock_init(&data->lock); |
1003 | |
1004 | INIT_WORK(&data->work, btusb_work); |
1005 | INIT_WORK(&data->waker, btusb_waker); |
1006 | spin_lock_init(&data->txlock); |
1007 | |
1008 | init_usb_anchor(&data->tx_anchor); |
1009 | init_usb_anchor(&data->intr_anchor); |
1010 | init_usb_anchor(&data->bulk_anchor); |
1011 | init_usb_anchor(&data->isoc_anchor); |
1012 | init_usb_anchor(&data->deferred); |
1013 | |
1014 | hdev = hci_alloc_dev(); |
1015 | if (!hdev) |
1016 | return -ENOMEM; |
1017 | |
1018 | hdev->bus = HCI_USB; |
1019 | hci_set_drvdata(hdev, data); |
1020 | |
1021 | data->hdev = hdev; |
1022 | |
1023 | SET_HCIDEV_DEV(hdev, &intf->dev); |
1024 | |
1025 | hdev->open = btusb_open; |
1026 | hdev->close = btusb_close; |
1027 | hdev->flush = btusb_flush; |
1028 | hdev->send = btusb_send_frame; |
1029 | hdev->notify = btusb_notify; |
1030 | |
1031 | /* Interface numbers are hardcoded in the specification */ |
1032 | data->isoc = usb_ifnum_to_if(data->udev, 1); |
1033 | |
1034 | if (!reset) |
1035 | set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); |
1036 | |
1037 | if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) { |
1038 | if (!disable_scofix) |
1039 | set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks); |
1040 | } |
1041 | |
1042 | if (id->driver_info & BTUSB_BROKEN_ISOC) |
1043 | data->isoc = NULL; |
1044 | |
1045 | if (id->driver_info & BTUSB_DIGIANSWER) { |
1046 | data->cmdreq_type = USB_TYPE_VENDOR; |
1047 | set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); |
1048 | } |
1049 | |
1050 | if (id->driver_info & BTUSB_CSR) { |
1051 | struct usb_device *udev = data->udev; |
1052 | |
1053 | /* Old firmware would otherwise execute USB reset */ |
1054 | if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117) |
1055 | set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); |
1056 | } |
1057 | |
1058 | if (id->driver_info & BTUSB_SNIFFER) { |
1059 | struct usb_device *udev = data->udev; |
1060 | |
1061 | /* New sniffer firmware has crippled HCI interface */ |
1062 | if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997) |
1063 | set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); |
1064 | |
1065 | data->isoc = NULL; |
1066 | } |
1067 | |
1068 | if (id->driver_info & BTUSB_BCM92035) { |
1069 | unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 }; |
1070 | struct sk_buff *skb; |
1071 | |
1072 | skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL); |
1073 | if (skb) { |
1074 | memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd)); |
1075 | skb_queue_tail(&hdev->driver_init, skb); |
1076 | } |
1077 | } |
1078 | |
1079 | if (data->isoc) { |
1080 | err = usb_driver_claim_interface(&btusb_driver, |
1081 | data->isoc, data); |
1082 | if (err < 0) { |
1083 | hci_free_dev(hdev); |
1084 | return err; |
1085 | } |
1086 | } |
1087 | |
1088 | err = hci_register_dev(hdev); |
1089 | if (err < 0) { |
1090 | hci_free_dev(hdev); |
1091 | return err; |
1092 | } |
1093 | |
1094 | usb_set_intfdata(intf, data); |
1095 | |
1096 | return 0; |
1097 | } |
1098 | |
1099 | static void btusb_disconnect(struct usb_interface *intf) |
1100 | { |
1101 | struct btusb_data *data = usb_get_intfdata(intf); |
1102 | struct hci_dev *hdev; |
1103 | |
1104 | BT_DBG("intf %p", intf); |
1105 | |
1106 | if (!data) |
1107 | return; |
1108 | |
1109 | hdev = data->hdev; |
1110 | usb_set_intfdata(data->intf, NULL); |
1111 | |
1112 | if (data->isoc) |
1113 | usb_set_intfdata(data->isoc, NULL); |
1114 | |
1115 | hci_unregister_dev(hdev); |
1116 | |
1117 | if (intf == data->isoc) |
1118 | usb_driver_release_interface(&btusb_driver, data->intf); |
1119 | else if (data->isoc) |
1120 | usb_driver_release_interface(&btusb_driver, data->isoc); |
1121 | |
1122 | hci_free_dev(hdev); |
1123 | } |
1124 | |
1125 | #ifdef CONFIG_PM |
1126 | static int btusb_suspend(struct usb_interface *intf, pm_message_t message) |
1127 | { |
1128 | struct btusb_data *data = usb_get_intfdata(intf); |
1129 | |
1130 | BT_DBG("intf %p", intf); |
1131 | |
1132 | if (data->suspend_count++) |
1133 | return 0; |
1134 | |
1135 | spin_lock_irq(&data->txlock); |
1136 | if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) { |
1137 | set_bit(BTUSB_SUSPENDING, &data->flags); |
1138 | spin_unlock_irq(&data->txlock); |
1139 | } else { |
1140 | spin_unlock_irq(&data->txlock); |
1141 | data->suspend_count--; |
1142 | return -EBUSY; |
1143 | } |
1144 | |
1145 | cancel_work_sync(&data->work); |
1146 | |
1147 | btusb_stop_traffic(data); |
1148 | usb_kill_anchored_urbs(&data->tx_anchor); |
1149 | |
1150 | return 0; |
1151 | } |
1152 | |
1153 | static void play_deferred(struct btusb_data *data) |
1154 | { |
1155 | struct urb *urb; |
1156 | int err; |
1157 | |
1158 | while ((urb = usb_get_from_anchor(&data->deferred))) { |
1159 | err = usb_submit_urb(urb, GFP_ATOMIC); |
1160 | if (err < 0) |
1161 | break; |
1162 | |
1163 | data->tx_in_flight++; |
1164 | } |
1165 | usb_scuttle_anchored_urbs(&data->deferred); |
1166 | } |
1167 | |
1168 | static int btusb_resume(struct usb_interface *intf) |
1169 | { |
1170 | struct btusb_data *data = usb_get_intfdata(intf); |
1171 | struct hci_dev *hdev = data->hdev; |
1172 | int err = 0; |
1173 | |
1174 | BT_DBG("intf %p", intf); |
1175 | |
1176 | if (--data->suspend_count) |
1177 | return 0; |
1178 | |
1179 | if (!test_bit(HCI_RUNNING, &hdev->flags)) |
1180 | goto done; |
1181 | |
1182 | if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) { |
1183 | err = btusb_submit_intr_urb(hdev, GFP_NOIO); |
1184 | if (err < 0) { |
1185 | clear_bit(BTUSB_INTR_RUNNING, &data->flags); |
1186 | goto failed; |
1187 | } |
1188 | } |
1189 | |
1190 | if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) { |
1191 | err = btusb_submit_bulk_urb(hdev, GFP_NOIO); |
1192 | if (err < 0) { |
1193 | clear_bit(BTUSB_BULK_RUNNING, &data->flags); |
1194 | goto failed; |
1195 | } |
1196 | |
1197 | btusb_submit_bulk_urb(hdev, GFP_NOIO); |
1198 | } |
1199 | |
1200 | if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) { |
1201 | if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0) |
1202 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); |
1203 | else |
1204 | btusb_submit_isoc_urb(hdev, GFP_NOIO); |
1205 | } |
1206 | |
1207 | spin_lock_irq(&data->txlock); |
1208 | play_deferred(data); |
1209 | clear_bit(BTUSB_SUSPENDING, &data->flags); |
1210 | spin_unlock_irq(&data->txlock); |
1211 | schedule_work(&data->work); |
1212 | |
1213 | return 0; |
1214 | |
1215 | failed: |
1216 | usb_scuttle_anchored_urbs(&data->deferred); |
1217 | done: |
1218 | spin_lock_irq(&data->txlock); |
1219 | clear_bit(BTUSB_SUSPENDING, &data->flags); |
1220 | spin_unlock_irq(&data->txlock); |
1221 | |
1222 | return err; |
1223 | } |
1224 | #endif |
1225 | |
1226 | static struct usb_driver btusb_driver = { |
1227 | .name = "btusb", |
1228 | .probe = btusb_probe, |
1229 | .disconnect = btusb_disconnect, |
1230 | #ifdef CONFIG_PM |
1231 | .suspend = btusb_suspend, |
1232 | .resume = btusb_resume, |
1233 | #endif |
1234 | .id_table = btusb_table, |
1235 | .supports_autosuspend = 1, |
1236 | .disable_hub_initiated_lpm = 1, |
1237 | }; |
1238 | |
1239 | module_usb_driver(btusb_driver); |
1240 | |
1241 | module_param(ignore_dga, bool, 0644); |
1242 | MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001"); |
1243 | |
1244 | module_param(ignore_csr, bool, 0644); |
1245 | MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001"); |
1246 | |
1247 | module_param(ignore_sniffer, bool, 0644); |
1248 | MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002"); |
1249 | |
1250 | module_param(disable_scofix, bool, 0644); |
1251 | MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size"); |
1252 | |
1253 | module_param(force_scofix, bool, 0644); |
1254 | MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size"); |
1255 | |
1256 | module_param(reset, bool, 0644); |
1257 | MODULE_PARM_DESC(reset, "Send HCI reset command on initialization"); |
1258 | |
1259 | MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); |
1260 | MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION); |
1261 | MODULE_VERSION(VERSION); |
1262 | MODULE_LICENSE("GPL"); |
1263 |
Branches:
ben-wpan
ben-wpan-stefan
javiroman/ks7010
jz-2.6.34
jz-2.6.34-rc5
jz-2.6.34-rc6
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jz47xx
jz47xx-2.6.38
master
Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
v2.6.34-rc6
v2.6.34-rc7
v3.9