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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 | ||
88d377b6 MAP |
74 | /* Apple MacBookPro8,2 */ |
75 | { USB_DEVICE(0x05ac, 0x821a) }, | |
76 | ||
cfeb4145 MH |
77 | /* AVM BlueFRITZ! USB v2.0 */ |
78 | { USB_DEVICE(0x057c, 0x3800) }, | |
79 | ||
80 | /* Bluetooth Ultraport Module from IBM */ | |
81 | { USB_DEVICE(0x04bf, 0x030a) }, | |
82 | ||
83 | /* ALPS Modules with non-standard id */ | |
84 | { USB_DEVICE(0x044e, 0x3001) }, | |
85 | { USB_DEVICE(0x044e, 0x3002) }, | |
86 | ||
87 | /* Ericsson with non-standard id */ | |
88 | { USB_DEVICE(0x0bdb, 0x1002) }, | |
89 | ||
90 | /* Canyon CN-BTU1 with HID interfaces */ | |
7a9d4020 | 91 | { USB_DEVICE(0x0c10, 0x0000) }, |
cfeb4145 | 92 | |
5e23b923 MH |
93 | { } /* Terminating entry */ |
94 | }; | |
95 | ||
96 | MODULE_DEVICE_TABLE(usb, btusb_table); | |
97 | ||
98 | static struct usb_device_id blacklist_table[] = { | |
cfeb4145 MH |
99 | /* CSR BlueCore devices */ |
100 | { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR }, | |
101 | ||
102 | /* Broadcom BCM2033 without firmware */ | |
103 | { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE }, | |
104 | ||
be93112a BS |
105 | /* Atheros 3011 with sflash firmware */ |
106 | { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE }, | |
107 | ||
509e7861 CYC |
108 | /* Atheros AR9285 Malbec with sflash firmware */ |
109 | { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE }, | |
110 | ||
d9f51b51 BS |
111 | /* Atheros 3012 with sflash firmware */ |
112 | { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_IGNORE }, | |
113 | ||
e9036e33 CYC |
114 | /* Atheros AR5BBU12 with sflash firmware */ |
115 | { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE }, | |
116 | ||
cfeb4145 | 117 | /* Broadcom BCM2035 */ |
7a9d4020 MH |
118 | { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU }, |
119 | { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU }, | |
120 | { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 }, | |
cfeb4145 MH |
121 | |
122 | /* Broadcom BCM2045 */ | |
7a9d4020 MH |
123 | { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU }, |
124 | { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU }, | |
bdbef3d6 | 125 | |
cfeb4145 | 126 | /* IBM/Lenovo ThinkPad with Broadcom chip */ |
7a9d4020 MH |
127 | { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU }, |
128 | { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU }, | |
cfeb4145 MH |
129 | |
130 | /* HP laptop with Broadcom chip */ | |
7a9d4020 | 131 | { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU }, |
cfeb4145 MH |
132 | |
133 | /* Dell laptop with Broadcom chip */ | |
7a9d4020 | 134 | { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU }, |
cfeb4145 | 135 | |
5ddd4a60 | 136 | /* Dell Wireless 370 and 410 devices */ |
7a9d4020 | 137 | { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU }, |
5ddd4a60 | 138 | { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU }, |
cfeb4145 | 139 | |
7a9d4020 MH |
140 | /* Belkin F8T012 and F8T013 devices */ |
141 | { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU }, | |
142 | { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU }, | |
cfeb4145 | 143 | |
5ddd4a60 MH |
144 | /* Asus WL-BTD202 device */ |
145 | { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU }, | |
146 | ||
147 | /* Kensington Bluetooth USB adapter */ | |
148 | { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU }, | |
149 | ||
cfeb4145 MH |
150 | /* RTX Telecom based adapters with buggy SCO support */ |
151 | { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC }, | |
152 | { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC }, | |
153 | ||
154 | /* CONWISE Technology based adapters with buggy SCO support */ | |
155 | { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC }, | |
156 | ||
cfeb4145 MH |
157 | /* Digianswer devices */ |
158 | { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER }, | |
159 | { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE }, | |
160 | ||
161 | /* CSR BlueCore Bluetooth Sniffer */ | |
162 | { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER }, | |
163 | ||
164 | /* Frontline ComProbe Bluetooth Sniffer */ | |
165 | { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER }, | |
166 | ||
5e23b923 MH |
167 | { } /* Terminating entry */ |
168 | }; | |
169 | ||
9bfa35fe MH |
170 | #define BTUSB_MAX_ISOC_FRAMES 10 |
171 | ||
5e23b923 MH |
172 | #define BTUSB_INTR_RUNNING 0 |
173 | #define BTUSB_BULK_RUNNING 1 | |
9bfa35fe | 174 | #define BTUSB_ISOC_RUNNING 2 |
7bee549e | 175 | #define BTUSB_SUSPENDING 3 |
08b8b6c4 | 176 | #define BTUSB_DID_ISO_RESUME 4 |
5e23b923 MH |
177 | |
178 | struct btusb_data { | |
179 | struct hci_dev *hdev; | |
180 | struct usb_device *udev; | |
5fbcd260 | 181 | struct usb_interface *intf; |
9bfa35fe | 182 | struct usb_interface *isoc; |
5e23b923 MH |
183 | |
184 | spinlock_t lock; | |
185 | ||
186 | unsigned long flags; | |
187 | ||
188 | struct work_struct work; | |
7bee549e | 189 | struct work_struct waker; |
5e23b923 MH |
190 | |
191 | struct usb_anchor tx_anchor; | |
192 | struct usb_anchor intr_anchor; | |
193 | struct usb_anchor bulk_anchor; | |
9bfa35fe | 194 | struct usb_anchor isoc_anchor; |
7bee549e ON |
195 | struct usb_anchor deferred; |
196 | int tx_in_flight; | |
197 | spinlock_t txlock; | |
5e23b923 MH |
198 | |
199 | struct usb_endpoint_descriptor *intr_ep; | |
200 | struct usb_endpoint_descriptor *bulk_tx_ep; | |
201 | struct usb_endpoint_descriptor *bulk_rx_ep; | |
9bfa35fe MH |
202 | struct usb_endpoint_descriptor *isoc_tx_ep; |
203 | struct usb_endpoint_descriptor *isoc_rx_ep; | |
204 | ||
7a9d4020 MH |
205 | __u8 cmdreq_type; |
206 | ||
43c2e57f | 207 | unsigned int sco_num; |
9bfa35fe | 208 | int isoc_altsetting; |
6a88adf2 | 209 | int suspend_count; |
5e23b923 MH |
210 | }; |
211 | ||
7bee549e ON |
212 | static int inc_tx(struct btusb_data *data) |
213 | { | |
214 | unsigned long flags; | |
215 | int rv; | |
216 | ||
217 | spin_lock_irqsave(&data->txlock, flags); | |
218 | rv = test_bit(BTUSB_SUSPENDING, &data->flags); | |
219 | if (!rv) | |
220 | data->tx_in_flight++; | |
221 | spin_unlock_irqrestore(&data->txlock, flags); | |
222 | ||
223 | return rv; | |
224 | } | |
225 | ||
5e23b923 MH |
226 | static void btusb_intr_complete(struct urb *urb) |
227 | { | |
228 | struct hci_dev *hdev = urb->context; | |
229 | struct btusb_data *data = hdev->driver_data; | |
230 | int err; | |
231 | ||
232 | BT_DBG("%s urb %p status %d count %d", hdev->name, | |
233 | urb, urb->status, urb->actual_length); | |
234 | ||
235 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
236 | return; | |
237 | ||
238 | if (urb->status == 0) { | |
9bfa35fe MH |
239 | hdev->stat.byte_rx += urb->actual_length; |
240 | ||
5e23b923 MH |
241 | if (hci_recv_fragment(hdev, HCI_EVENT_PKT, |
242 | urb->transfer_buffer, | |
243 | urb->actual_length) < 0) { | |
244 | BT_ERR("%s corrupted event packet", hdev->name); | |
245 | hdev->stat.err_rx++; | |
246 | } | |
247 | } | |
248 | ||
249 | if (!test_bit(BTUSB_INTR_RUNNING, &data->flags)) | |
250 | return; | |
251 | ||
7bee549e | 252 | usb_mark_last_busy(data->udev); |
5e23b923 MH |
253 | usb_anchor_urb(urb, &data->intr_anchor); |
254 | ||
255 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
256 | if (err < 0) { | |
61faddf6 SS |
257 | if (err != -EPERM) |
258 | BT_ERR("%s urb %p failed to resubmit (%d)", | |
5e23b923 MH |
259 | hdev->name, urb, -err); |
260 | usb_unanchor_urb(urb); | |
261 | } | |
262 | } | |
263 | ||
2eda66f4 | 264 | static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags) |
5e23b923 MH |
265 | { |
266 | struct btusb_data *data = hdev->driver_data; | |
267 | struct urb *urb; | |
268 | unsigned char *buf; | |
269 | unsigned int pipe; | |
270 | int err, size; | |
271 | ||
272 | BT_DBG("%s", hdev->name); | |
273 | ||
9bfa35fe MH |
274 | if (!data->intr_ep) |
275 | return -ENODEV; | |
276 | ||
2eda66f4 | 277 | urb = usb_alloc_urb(0, mem_flags); |
5e23b923 MH |
278 | if (!urb) |
279 | return -ENOMEM; | |
280 | ||
281 | size = le16_to_cpu(data->intr_ep->wMaxPacketSize); | |
282 | ||
2eda66f4 | 283 | buf = kmalloc(size, mem_flags); |
5e23b923 MH |
284 | if (!buf) { |
285 | usb_free_urb(urb); | |
286 | return -ENOMEM; | |
287 | } | |
288 | ||
289 | pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress); | |
290 | ||
291 | usb_fill_int_urb(urb, data->udev, pipe, buf, size, | |
292 | btusb_intr_complete, hdev, | |
293 | data->intr_ep->bInterval); | |
294 | ||
295 | urb->transfer_flags |= URB_FREE_BUFFER; | |
296 | ||
297 | usb_anchor_urb(urb, &data->intr_anchor); | |
298 | ||
2eda66f4 | 299 | err = usb_submit_urb(urb, mem_flags); |
5e23b923 MH |
300 | if (err < 0) { |
301 | BT_ERR("%s urb %p submission failed (%d)", | |
302 | hdev->name, urb, -err); | |
303 | usb_unanchor_urb(urb); | |
5e23b923 MH |
304 | } |
305 | ||
306 | usb_free_urb(urb); | |
307 | ||
308 | return err; | |
309 | } | |
310 | ||
311 | static void btusb_bulk_complete(struct urb *urb) | |
312 | { | |
313 | struct hci_dev *hdev = urb->context; | |
314 | struct btusb_data *data = hdev->driver_data; | |
315 | int err; | |
316 | ||
317 | BT_DBG("%s urb %p status %d count %d", hdev->name, | |
318 | urb, urb->status, urb->actual_length); | |
319 | ||
320 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
321 | return; | |
322 | ||
323 | if (urb->status == 0) { | |
9bfa35fe MH |
324 | hdev->stat.byte_rx += urb->actual_length; |
325 | ||
5e23b923 MH |
326 | if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT, |
327 | urb->transfer_buffer, | |
328 | urb->actual_length) < 0) { | |
329 | BT_ERR("%s corrupted ACL packet", hdev->name); | |
330 | hdev->stat.err_rx++; | |
331 | } | |
332 | } | |
333 | ||
334 | if (!test_bit(BTUSB_BULK_RUNNING, &data->flags)) | |
335 | return; | |
336 | ||
337 | usb_anchor_urb(urb, &data->bulk_anchor); | |
652fd781 | 338 | usb_mark_last_busy(data->udev); |
5e23b923 MH |
339 | |
340 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
341 | if (err < 0) { | |
61faddf6 SS |
342 | if (err != -EPERM) |
343 | BT_ERR("%s urb %p failed to resubmit (%d)", | |
5e23b923 MH |
344 | hdev->name, urb, -err); |
345 | usb_unanchor_urb(urb); | |
346 | } | |
347 | } | |
348 | ||
2eda66f4 | 349 | static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags) |
5e23b923 MH |
350 | { |
351 | struct btusb_data *data = hdev->driver_data; | |
352 | struct urb *urb; | |
353 | unsigned char *buf; | |
354 | unsigned int pipe; | |
290ba200 | 355 | int err, size = HCI_MAX_FRAME_SIZE; |
5e23b923 MH |
356 | |
357 | BT_DBG("%s", hdev->name); | |
358 | ||
9bfa35fe MH |
359 | if (!data->bulk_rx_ep) |
360 | return -ENODEV; | |
361 | ||
2eda66f4 | 362 | urb = usb_alloc_urb(0, mem_flags); |
5e23b923 MH |
363 | if (!urb) |
364 | return -ENOMEM; | |
365 | ||
2eda66f4 | 366 | buf = kmalloc(size, mem_flags); |
5e23b923 MH |
367 | if (!buf) { |
368 | usb_free_urb(urb); | |
369 | return -ENOMEM; | |
370 | } | |
371 | ||
372 | pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress); | |
373 | ||
374 | usb_fill_bulk_urb(urb, data->udev, pipe, | |
375 | buf, size, btusb_bulk_complete, hdev); | |
376 | ||
377 | urb->transfer_flags |= URB_FREE_BUFFER; | |
378 | ||
7bee549e | 379 | usb_mark_last_busy(data->udev); |
5e23b923 MH |
380 | usb_anchor_urb(urb, &data->bulk_anchor); |
381 | ||
2eda66f4 | 382 | err = usb_submit_urb(urb, mem_flags); |
5e23b923 MH |
383 | if (err < 0) { |
384 | BT_ERR("%s urb %p submission failed (%d)", | |
385 | hdev->name, urb, -err); | |
386 | usb_unanchor_urb(urb); | |
5e23b923 MH |
387 | } |
388 | ||
389 | usb_free_urb(urb); | |
390 | ||
391 | return err; | |
392 | } | |
393 | ||
9bfa35fe MH |
394 | static void btusb_isoc_complete(struct urb *urb) |
395 | { | |
396 | struct hci_dev *hdev = urb->context; | |
397 | struct btusb_data *data = hdev->driver_data; | |
398 | int i, err; | |
399 | ||
400 | BT_DBG("%s urb %p status %d count %d", hdev->name, | |
401 | urb, urb->status, urb->actual_length); | |
402 | ||
403 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
404 | return; | |
405 | ||
406 | if (urb->status == 0) { | |
407 | for (i = 0; i < urb->number_of_packets; i++) { | |
408 | unsigned int offset = urb->iso_frame_desc[i].offset; | |
409 | unsigned int length = urb->iso_frame_desc[i].actual_length; | |
410 | ||
411 | if (urb->iso_frame_desc[i].status) | |
412 | continue; | |
413 | ||
414 | hdev->stat.byte_rx += length; | |
415 | ||
416 | if (hci_recv_fragment(hdev, HCI_SCODATA_PKT, | |
417 | urb->transfer_buffer + offset, | |
418 | length) < 0) { | |
419 | BT_ERR("%s corrupted SCO packet", hdev->name); | |
420 | hdev->stat.err_rx++; | |
421 | } | |
422 | } | |
423 | } | |
424 | ||
425 | if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags)) | |
426 | return; | |
427 | ||
428 | usb_anchor_urb(urb, &data->isoc_anchor); | |
429 | ||
430 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
431 | if (err < 0) { | |
61faddf6 SS |
432 | if (err != -EPERM) |
433 | BT_ERR("%s urb %p failed to resubmit (%d)", | |
9bfa35fe MH |
434 | hdev->name, urb, -err); |
435 | usb_unanchor_urb(urb); | |
436 | } | |
437 | } | |
438 | ||
42b16b3f | 439 | static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu) |
9bfa35fe MH |
440 | { |
441 | int i, offset = 0; | |
442 | ||
443 | BT_DBG("len %d mtu %d", len, mtu); | |
444 | ||
445 | for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu; | |
446 | i++, offset += mtu, len -= mtu) { | |
447 | urb->iso_frame_desc[i].offset = offset; | |
448 | urb->iso_frame_desc[i].length = mtu; | |
449 | } | |
450 | ||
451 | if (len && i < BTUSB_MAX_ISOC_FRAMES) { | |
452 | urb->iso_frame_desc[i].offset = offset; | |
453 | urb->iso_frame_desc[i].length = len; | |
454 | i++; | |
455 | } | |
456 | ||
457 | urb->number_of_packets = i; | |
458 | } | |
459 | ||
2eda66f4 | 460 | static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags) |
9bfa35fe MH |
461 | { |
462 | struct btusb_data *data = hdev->driver_data; | |
463 | struct urb *urb; | |
464 | unsigned char *buf; | |
465 | unsigned int pipe; | |
466 | int err, size; | |
467 | ||
468 | BT_DBG("%s", hdev->name); | |
469 | ||
470 | if (!data->isoc_rx_ep) | |
471 | return -ENODEV; | |
472 | ||
2eda66f4 | 473 | urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags); |
9bfa35fe MH |
474 | if (!urb) |
475 | return -ENOMEM; | |
476 | ||
477 | size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) * | |
478 | BTUSB_MAX_ISOC_FRAMES; | |
479 | ||
2eda66f4 | 480 | buf = kmalloc(size, mem_flags); |
9bfa35fe MH |
481 | if (!buf) { |
482 | usb_free_urb(urb); | |
483 | return -ENOMEM; | |
484 | } | |
485 | ||
486 | pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress); | |
487 | ||
488 | urb->dev = data->udev; | |
489 | urb->pipe = pipe; | |
490 | urb->context = hdev; | |
491 | urb->complete = btusb_isoc_complete; | |
492 | urb->interval = data->isoc_rx_ep->bInterval; | |
493 | ||
494 | urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP; | |
495 | urb->transfer_buffer = buf; | |
496 | urb->transfer_buffer_length = size; | |
497 | ||
498 | __fill_isoc_descriptor(urb, size, | |
499 | le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize)); | |
500 | ||
501 | usb_anchor_urb(urb, &data->isoc_anchor); | |
502 | ||
2eda66f4 | 503 | err = usb_submit_urb(urb, mem_flags); |
9bfa35fe MH |
504 | if (err < 0) { |
505 | BT_ERR("%s urb %p submission failed (%d)", | |
506 | hdev->name, urb, -err); | |
507 | usb_unanchor_urb(urb); | |
9bfa35fe MH |
508 | } |
509 | ||
510 | usb_free_urb(urb); | |
511 | ||
512 | return err; | |
513 | } | |
514 | ||
5e23b923 | 515 | static void btusb_tx_complete(struct urb *urb) |
7bee549e ON |
516 | { |
517 | struct sk_buff *skb = urb->context; | |
518 | struct hci_dev *hdev = (struct hci_dev *) skb->dev; | |
519 | struct btusb_data *data = hdev->driver_data; | |
520 | ||
521 | BT_DBG("%s urb %p status %d count %d", hdev->name, | |
522 | urb, urb->status, urb->actual_length); | |
523 | ||
524 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
525 | goto done; | |
526 | ||
527 | if (!urb->status) | |
528 | hdev->stat.byte_tx += urb->transfer_buffer_length; | |
529 | else | |
530 | hdev->stat.err_tx++; | |
531 | ||
532 | done: | |
533 | spin_lock(&data->txlock); | |
534 | data->tx_in_flight--; | |
535 | spin_unlock(&data->txlock); | |
536 | ||
537 | kfree(urb->setup_packet); | |
538 | ||
539 | kfree_skb(skb); | |
540 | } | |
541 | ||
542 | static void btusb_isoc_tx_complete(struct urb *urb) | |
5e23b923 MH |
543 | { |
544 | struct sk_buff *skb = urb->context; | |
545 | struct hci_dev *hdev = (struct hci_dev *) skb->dev; | |
546 | ||
547 | BT_DBG("%s urb %p status %d count %d", hdev->name, | |
548 | urb, urb->status, urb->actual_length); | |
549 | ||
550 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
551 | goto done; | |
552 | ||
553 | if (!urb->status) | |
554 | hdev->stat.byte_tx += urb->transfer_buffer_length; | |
555 | else | |
556 | hdev->stat.err_tx++; | |
557 | ||
558 | done: | |
559 | kfree(urb->setup_packet); | |
560 | ||
561 | kfree_skb(skb); | |
562 | } | |
563 | ||
564 | static int btusb_open(struct hci_dev *hdev) | |
565 | { | |
566 | struct btusb_data *data = hdev->driver_data; | |
567 | int err; | |
568 | ||
569 | BT_DBG("%s", hdev->name); | |
570 | ||
7bee549e ON |
571 | err = usb_autopm_get_interface(data->intf); |
572 | if (err < 0) | |
573 | return err; | |
574 | ||
575 | data->intf->needs_remote_wakeup = 1; | |
576 | ||
5e23b923 | 577 | if (test_and_set_bit(HCI_RUNNING, &hdev->flags)) |
7bee549e | 578 | goto done; |
5e23b923 MH |
579 | |
580 | if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags)) | |
7bee549e | 581 | goto done; |
5e23b923 | 582 | |
2eda66f4 | 583 | err = btusb_submit_intr_urb(hdev, GFP_KERNEL); |
43c2e57f MH |
584 | if (err < 0) |
585 | goto failed; | |
586 | ||
587 | err = btusb_submit_bulk_urb(hdev, GFP_KERNEL); | |
5e23b923 | 588 | if (err < 0) { |
43c2e57f MH |
589 | usb_kill_anchored_urbs(&data->intr_anchor); |
590 | goto failed; | |
5e23b923 MH |
591 | } |
592 | ||
43c2e57f MH |
593 | set_bit(BTUSB_BULK_RUNNING, &data->flags); |
594 | btusb_submit_bulk_urb(hdev, GFP_KERNEL); | |
595 | ||
7bee549e ON |
596 | done: |
597 | usb_autopm_put_interface(data->intf); | |
43c2e57f MH |
598 | return 0; |
599 | ||
600 | failed: | |
601 | clear_bit(BTUSB_INTR_RUNNING, &data->flags); | |
602 | clear_bit(HCI_RUNNING, &hdev->flags); | |
7bee549e | 603 | usb_autopm_put_interface(data->intf); |
5e23b923 MH |
604 | return err; |
605 | } | |
606 | ||
7bee549e ON |
607 | static void btusb_stop_traffic(struct btusb_data *data) |
608 | { | |
609 | usb_kill_anchored_urbs(&data->intr_anchor); | |
610 | usb_kill_anchored_urbs(&data->bulk_anchor); | |
611 | usb_kill_anchored_urbs(&data->isoc_anchor); | |
612 | } | |
613 | ||
5e23b923 MH |
614 | static int btusb_close(struct hci_dev *hdev) |
615 | { | |
616 | struct btusb_data *data = hdev->driver_data; | |
7bee549e | 617 | int err; |
5e23b923 MH |
618 | |
619 | BT_DBG("%s", hdev->name); | |
620 | ||
621 | if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags)) | |
622 | return 0; | |
623 | ||
e8c3c3d2 | 624 | cancel_work_sync(&data->work); |
404291ac | 625 | cancel_work_sync(&data->waker); |
e8c3c3d2 | 626 | |
9bfa35fe | 627 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); |
5e23b923 | 628 | clear_bit(BTUSB_BULK_RUNNING, &data->flags); |
5e23b923 | 629 | clear_bit(BTUSB_INTR_RUNNING, &data->flags); |
7bee549e ON |
630 | |
631 | btusb_stop_traffic(data); | |
632 | err = usb_autopm_get_interface(data->intf); | |
633 | if (err < 0) | |
7b8e2c1d | 634 | goto failed; |
7bee549e ON |
635 | |
636 | data->intf->needs_remote_wakeup = 0; | |
637 | usb_autopm_put_interface(data->intf); | |
5e23b923 | 638 | |
7b8e2c1d ON |
639 | failed: |
640 | usb_scuttle_anchored_urbs(&data->deferred); | |
5e23b923 MH |
641 | return 0; |
642 | } | |
643 | ||
644 | static int btusb_flush(struct hci_dev *hdev) | |
645 | { | |
646 | struct btusb_data *data = hdev->driver_data; | |
647 | ||
648 | BT_DBG("%s", hdev->name); | |
649 | ||
650 | usb_kill_anchored_urbs(&data->tx_anchor); | |
651 | ||
652 | return 0; | |
653 | } | |
654 | ||
655 | static int btusb_send_frame(struct sk_buff *skb) | |
656 | { | |
657 | struct hci_dev *hdev = (struct hci_dev *) skb->dev; | |
658 | struct btusb_data *data = hdev->driver_data; | |
659 | struct usb_ctrlrequest *dr; | |
660 | struct urb *urb; | |
661 | unsigned int pipe; | |
662 | int err; | |
663 | ||
664 | BT_DBG("%s", hdev->name); | |
665 | ||
666 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
667 | return -EBUSY; | |
668 | ||
669 | switch (bt_cb(skb)->pkt_type) { | |
670 | case HCI_COMMAND_PKT: | |
671 | urb = usb_alloc_urb(0, GFP_ATOMIC); | |
672 | if (!urb) | |
673 | return -ENOMEM; | |
674 | ||
675 | dr = kmalloc(sizeof(*dr), GFP_ATOMIC); | |
676 | if (!dr) { | |
677 | usb_free_urb(urb); | |
678 | return -ENOMEM; | |
679 | } | |
680 | ||
7a9d4020 | 681 | dr->bRequestType = data->cmdreq_type; |
5e23b923 MH |
682 | dr->bRequest = 0; |
683 | dr->wIndex = 0; | |
684 | dr->wValue = 0; | |
685 | dr->wLength = __cpu_to_le16(skb->len); | |
686 | ||
687 | pipe = usb_sndctrlpipe(data->udev, 0x00); | |
688 | ||
689 | usb_fill_control_urb(urb, data->udev, pipe, (void *) dr, | |
690 | skb->data, skb->len, btusb_tx_complete, skb); | |
691 | ||
692 | hdev->stat.cmd_tx++; | |
693 | break; | |
694 | ||
695 | case HCI_ACLDATA_PKT: | |
8693ac90 VCG |
696 | if (!data->bulk_tx_ep || (hdev->conn_hash.acl_num < 1 && |
697 | hdev->conn_hash.le_num < 1)) | |
9bfa35fe MH |
698 | return -ENODEV; |
699 | ||
5e23b923 MH |
700 | urb = usb_alloc_urb(0, GFP_ATOMIC); |
701 | if (!urb) | |
702 | return -ENOMEM; | |
703 | ||
704 | pipe = usb_sndbulkpipe(data->udev, | |
705 | data->bulk_tx_ep->bEndpointAddress); | |
706 | ||
707 | usb_fill_bulk_urb(urb, data->udev, pipe, | |
708 | skb->data, skb->len, btusb_tx_complete, skb); | |
709 | ||
710 | hdev->stat.acl_tx++; | |
711 | break; | |
712 | ||
713 | case HCI_SCODATA_PKT: | |
9bfa35fe MH |
714 | if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1) |
715 | return -ENODEV; | |
716 | ||
717 | urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC); | |
718 | if (!urb) | |
719 | return -ENOMEM; | |
720 | ||
721 | pipe = usb_sndisocpipe(data->udev, | |
722 | data->isoc_tx_ep->bEndpointAddress); | |
723 | ||
03c2d0e8 GP |
724 | usb_fill_int_urb(urb, data->udev, pipe, |
725 | skb->data, skb->len, btusb_isoc_tx_complete, | |
726 | skb, data->isoc_tx_ep->bInterval); | |
9bfa35fe MH |
727 | |
728 | urb->transfer_flags = URB_ISO_ASAP; | |
9bfa35fe MH |
729 | |
730 | __fill_isoc_descriptor(urb, skb->len, | |
731 | le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize)); | |
732 | ||
5e23b923 | 733 | hdev->stat.sco_tx++; |
7bee549e | 734 | goto skip_waking; |
5e23b923 MH |
735 | |
736 | default: | |
737 | return -EILSEQ; | |
738 | } | |
739 | ||
7bee549e ON |
740 | err = inc_tx(data); |
741 | if (err) { | |
742 | usb_anchor_urb(urb, &data->deferred); | |
743 | schedule_work(&data->waker); | |
744 | err = 0; | |
745 | goto done; | |
746 | } | |
747 | ||
748 | skip_waking: | |
5e23b923 MH |
749 | usb_anchor_urb(urb, &data->tx_anchor); |
750 | ||
751 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
752 | if (err < 0) { | |
753 | BT_ERR("%s urb %p submission failed", hdev->name, urb); | |
754 | kfree(urb->setup_packet); | |
755 | usb_unanchor_urb(urb); | |
7bee549e ON |
756 | } else { |
757 | usb_mark_last_busy(data->udev); | |
5e23b923 MH |
758 | } |
759 | ||
760 | usb_free_urb(urb); | |
761 | ||
7bee549e | 762 | done: |
5e23b923 MH |
763 | return err; |
764 | } | |
765 | ||
766 | static void btusb_destruct(struct hci_dev *hdev) | |
767 | { | |
768 | struct btusb_data *data = hdev->driver_data; | |
769 | ||
770 | BT_DBG("%s", hdev->name); | |
771 | ||
772 | kfree(data); | |
773 | } | |
774 | ||
775 | static void btusb_notify(struct hci_dev *hdev, unsigned int evt) | |
776 | { | |
777 | struct btusb_data *data = hdev->driver_data; | |
778 | ||
779 | BT_DBG("%s evt %d", hdev->name, evt); | |
780 | ||
43c2e57f MH |
781 | if (hdev->conn_hash.sco_num != data->sco_num) { |
782 | data->sco_num = hdev->conn_hash.sco_num; | |
783 | schedule_work(&data->work); | |
a780efa8 | 784 | } |
5e23b923 MH |
785 | } |
786 | ||
42b16b3f | 787 | static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting) |
9bfa35fe MH |
788 | { |
789 | struct btusb_data *data = hdev->driver_data; | |
790 | struct usb_interface *intf = data->isoc; | |
791 | struct usb_endpoint_descriptor *ep_desc; | |
792 | int i, err; | |
793 | ||
794 | if (!data->isoc) | |
795 | return -ENODEV; | |
796 | ||
797 | err = usb_set_interface(data->udev, 1, altsetting); | |
798 | if (err < 0) { | |
799 | BT_ERR("%s setting interface failed (%d)", hdev->name, -err); | |
800 | return err; | |
801 | } | |
802 | ||
803 | data->isoc_altsetting = altsetting; | |
804 | ||
805 | data->isoc_tx_ep = NULL; | |
806 | data->isoc_rx_ep = NULL; | |
807 | ||
808 | for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { | |
809 | ep_desc = &intf->cur_altsetting->endpoint[i].desc; | |
810 | ||
811 | if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) { | |
812 | data->isoc_tx_ep = ep_desc; | |
813 | continue; | |
814 | } | |
815 | ||
816 | if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) { | |
817 | data->isoc_rx_ep = ep_desc; | |
818 | continue; | |
819 | } | |
820 | } | |
821 | ||
822 | if (!data->isoc_tx_ep || !data->isoc_rx_ep) { | |
823 | BT_ERR("%s invalid SCO descriptors", hdev->name); | |
824 | return -ENODEV; | |
825 | } | |
826 | ||
827 | return 0; | |
828 | } | |
829 | ||
5e23b923 MH |
830 | static void btusb_work(struct work_struct *work) |
831 | { | |
832 | struct btusb_data *data = container_of(work, struct btusb_data, work); | |
833 | struct hci_dev *hdev = data->hdev; | |
7bee549e | 834 | int err; |
5e23b923 | 835 | |
9bfa35fe | 836 | if (hdev->conn_hash.sco_num > 0) { |
08b8b6c4 | 837 | if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) { |
8efdd0cd | 838 | err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf); |
7bee549e ON |
839 | if (err < 0) { |
840 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); | |
841 | usb_kill_anchored_urbs(&data->isoc_anchor); | |
842 | return; | |
843 | } | |
844 | ||
08b8b6c4 | 845 | set_bit(BTUSB_DID_ISO_RESUME, &data->flags); |
7bee549e | 846 | } |
9bfa35fe MH |
847 | if (data->isoc_altsetting != 2) { |
848 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); | |
849 | usb_kill_anchored_urbs(&data->isoc_anchor); | |
850 | ||
851 | if (__set_isoc_interface(hdev, 2) < 0) | |
852 | return; | |
853 | } | |
854 | ||
855 | if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) { | |
2eda66f4 | 856 | if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0) |
9bfa35fe MH |
857 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); |
858 | else | |
2eda66f4 | 859 | btusb_submit_isoc_urb(hdev, GFP_KERNEL); |
9bfa35fe MH |
860 | } |
861 | } else { | |
862 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); | |
863 | usb_kill_anchored_urbs(&data->isoc_anchor); | |
864 | ||
865 | __set_isoc_interface(hdev, 0); | |
08b8b6c4 | 866 | if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags)) |
8efdd0cd | 867 | usb_autopm_put_interface(data->isoc ? data->isoc : data->intf); |
5e23b923 MH |
868 | } |
869 | } | |
870 | ||
7bee549e ON |
871 | static void btusb_waker(struct work_struct *work) |
872 | { | |
873 | struct btusb_data *data = container_of(work, struct btusb_data, waker); | |
874 | int err; | |
875 | ||
876 | err = usb_autopm_get_interface(data->intf); | |
877 | if (err < 0) | |
878 | return; | |
879 | ||
880 | usb_autopm_put_interface(data->intf); | |
881 | } | |
882 | ||
5e23b923 MH |
883 | static int btusb_probe(struct usb_interface *intf, |
884 | const struct usb_device_id *id) | |
885 | { | |
886 | struct usb_endpoint_descriptor *ep_desc; | |
887 | struct btusb_data *data; | |
888 | struct hci_dev *hdev; | |
889 | int i, err; | |
890 | ||
891 | BT_DBG("intf %p id %p", intf, id); | |
892 | ||
cfeb4145 | 893 | /* interface numbers are hardcoded in the spec */ |
5e23b923 MH |
894 | if (intf->cur_altsetting->desc.bInterfaceNumber != 0) |
895 | return -ENODEV; | |
896 | ||
897 | if (!id->driver_info) { | |
898 | const struct usb_device_id *match; | |
899 | match = usb_match_id(intf, blacklist_table); | |
900 | if (match) | |
901 | id = match; | |
902 | } | |
903 | ||
cfeb4145 MH |
904 | if (id->driver_info == BTUSB_IGNORE) |
905 | return -ENODEV; | |
906 | ||
907 | if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER) | |
908 | return -ENODEV; | |
909 | ||
910 | if (ignore_csr && id->driver_info & BTUSB_CSR) | |
911 | return -ENODEV; | |
912 | ||
913 | if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER) | |
914 | return -ENODEV; | |
915 | ||
5e23b923 MH |
916 | data = kzalloc(sizeof(*data), GFP_KERNEL); |
917 | if (!data) | |
918 | return -ENOMEM; | |
919 | ||
920 | for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { | |
921 | ep_desc = &intf->cur_altsetting->endpoint[i].desc; | |
922 | ||
923 | if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) { | |
924 | data->intr_ep = ep_desc; | |
925 | continue; | |
926 | } | |
927 | ||
928 | if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { | |
929 | data->bulk_tx_ep = ep_desc; | |
930 | continue; | |
931 | } | |
932 | ||
933 | if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { | |
934 | data->bulk_rx_ep = ep_desc; | |
935 | continue; | |
936 | } | |
937 | } | |
938 | ||
939 | if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) { | |
940 | kfree(data); | |
941 | return -ENODEV; | |
942 | } | |
943 | ||
7a9d4020 MH |
944 | data->cmdreq_type = USB_TYPE_CLASS; |
945 | ||
5e23b923 | 946 | data->udev = interface_to_usbdev(intf); |
5fbcd260 | 947 | data->intf = intf; |
5e23b923 MH |
948 | |
949 | spin_lock_init(&data->lock); | |
950 | ||
951 | INIT_WORK(&data->work, btusb_work); | |
7bee549e ON |
952 | INIT_WORK(&data->waker, btusb_waker); |
953 | spin_lock_init(&data->txlock); | |
5e23b923 MH |
954 | |
955 | init_usb_anchor(&data->tx_anchor); | |
956 | init_usb_anchor(&data->intr_anchor); | |
957 | init_usb_anchor(&data->bulk_anchor); | |
9bfa35fe | 958 | init_usb_anchor(&data->isoc_anchor); |
7bee549e | 959 | init_usb_anchor(&data->deferred); |
5e23b923 MH |
960 | |
961 | hdev = hci_alloc_dev(); | |
962 | if (!hdev) { | |
963 | kfree(data); | |
964 | return -ENOMEM; | |
965 | } | |
966 | ||
c13854ce | 967 | hdev->bus = HCI_USB; |
5e23b923 MH |
968 | hdev->driver_data = data; |
969 | ||
970 | data->hdev = hdev; | |
971 | ||
972 | SET_HCIDEV_DEV(hdev, &intf->dev); | |
973 | ||
974 | hdev->open = btusb_open; | |
975 | hdev->close = btusb_close; | |
976 | hdev->flush = btusb_flush; | |
977 | hdev->send = btusb_send_frame; | |
978 | hdev->destruct = btusb_destruct; | |
979 | hdev->notify = btusb_notify; | |
980 | ||
981 | hdev->owner = THIS_MODULE; | |
982 | ||
7a9d4020 | 983 | /* Interface numbers are hardcoded in the specification */ |
9bfa35fe MH |
984 | data->isoc = usb_ifnum_to_if(data->udev, 1); |
985 | ||
7a9d4020 MH |
986 | if (!reset) |
987 | set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks); | |
cfeb4145 MH |
988 | |
989 | if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) { | |
990 | if (!disable_scofix) | |
991 | set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks); | |
992 | } | |
993 | ||
9bfa35fe MH |
994 | if (id->driver_info & BTUSB_BROKEN_ISOC) |
995 | data->isoc = NULL; | |
996 | ||
7a9d4020 MH |
997 | if (id->driver_info & BTUSB_DIGIANSWER) { |
998 | data->cmdreq_type = USB_TYPE_VENDOR; | |
999 | set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks); | |
1000 | } | |
1001 | ||
1002 | if (id->driver_info & BTUSB_CSR) { | |
1003 | struct usb_device *udev = data->udev; | |
1004 | ||
1005 | /* Old firmware would otherwise execute USB reset */ | |
1006 | if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117) | |
1007 | set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks); | |
1008 | } | |
1009 | ||
cfeb4145 | 1010 | if (id->driver_info & BTUSB_SNIFFER) { |
9bfa35fe | 1011 | struct usb_device *udev = data->udev; |
cfeb4145 | 1012 | |
7a9d4020 | 1013 | /* New sniffer firmware has crippled HCI interface */ |
cfeb4145 MH |
1014 | if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997) |
1015 | set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); | |
9bfa35fe MH |
1016 | |
1017 | data->isoc = NULL; | |
cfeb4145 MH |
1018 | } |
1019 | ||
1020 | if (id->driver_info & BTUSB_BCM92035) { | |
1021 | unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 }; | |
1022 | struct sk_buff *skb; | |
1023 | ||
1024 | skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL); | |
1025 | if (skb) { | |
1026 | memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd)); | |
1027 | skb_queue_tail(&hdev->driver_init, skb); | |
1028 | } | |
1029 | } | |
5e23b923 | 1030 | |
9bfa35fe MH |
1031 | if (data->isoc) { |
1032 | err = usb_driver_claim_interface(&btusb_driver, | |
5fbcd260 | 1033 | data->isoc, data); |
9bfa35fe MH |
1034 | if (err < 0) { |
1035 | hci_free_dev(hdev); | |
1036 | kfree(data); | |
1037 | return err; | |
1038 | } | |
1039 | } | |
1040 | ||
5e23b923 MH |
1041 | err = hci_register_dev(hdev); |
1042 | if (err < 0) { | |
1043 | hci_free_dev(hdev); | |
1044 | kfree(data); | |
1045 | return err; | |
1046 | } | |
1047 | ||
1048 | usb_set_intfdata(intf, data); | |
1049 | ||
1050 | return 0; | |
1051 | } | |
1052 | ||
1053 | static void btusb_disconnect(struct usb_interface *intf) | |
1054 | { | |
1055 | struct btusb_data *data = usb_get_intfdata(intf); | |
1056 | struct hci_dev *hdev; | |
1057 | ||
1058 | BT_DBG("intf %p", intf); | |
1059 | ||
1060 | if (!data) | |
1061 | return; | |
1062 | ||
1063 | hdev = data->hdev; | |
1064 | ||
5fbcd260 | 1065 | __hci_dev_hold(hdev); |
9bfa35fe | 1066 | |
5fbcd260 MH |
1067 | usb_set_intfdata(data->intf, NULL); |
1068 | ||
1069 | if (data->isoc) | |
1070 | usb_set_intfdata(data->isoc, NULL); | |
5e23b923 MH |
1071 | |
1072 | hci_unregister_dev(hdev); | |
1073 | ||
5fbcd260 MH |
1074 | if (intf == data->isoc) |
1075 | usb_driver_release_interface(&btusb_driver, data->intf); | |
1076 | else if (data->isoc) | |
1077 | usb_driver_release_interface(&btusb_driver, data->isoc); | |
1078 | ||
1079 | __hci_dev_put(hdev); | |
1080 | ||
5e23b923 MH |
1081 | hci_free_dev(hdev); |
1082 | } | |
1083 | ||
7bee549e | 1084 | #ifdef CONFIG_PM |
6a88adf2 MH |
1085 | static int btusb_suspend(struct usb_interface *intf, pm_message_t message) |
1086 | { | |
1087 | struct btusb_data *data = usb_get_intfdata(intf); | |
1088 | ||
1089 | BT_DBG("intf %p", intf); | |
1090 | ||
1091 | if (data->suspend_count++) | |
1092 | return 0; | |
1093 | ||
7bee549e | 1094 | spin_lock_irq(&data->txlock); |
fb34d537 | 1095 | if (!((message.event & PM_EVENT_AUTO) && data->tx_in_flight)) { |
7bee549e ON |
1096 | set_bit(BTUSB_SUSPENDING, &data->flags); |
1097 | spin_unlock_irq(&data->txlock); | |
1098 | } else { | |
1099 | spin_unlock_irq(&data->txlock); | |
1100 | data->suspend_count--; | |
1101 | return -EBUSY; | |
1102 | } | |
1103 | ||
6a88adf2 MH |
1104 | cancel_work_sync(&data->work); |
1105 | ||
7bee549e | 1106 | btusb_stop_traffic(data); |
6a88adf2 MH |
1107 | usb_kill_anchored_urbs(&data->tx_anchor); |
1108 | ||
6a88adf2 MH |
1109 | return 0; |
1110 | } | |
1111 | ||
7bee549e ON |
1112 | static void play_deferred(struct btusb_data *data) |
1113 | { | |
1114 | struct urb *urb; | |
1115 | int err; | |
1116 | ||
1117 | while ((urb = usb_get_from_anchor(&data->deferred))) { | |
1118 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
1119 | if (err < 0) | |
1120 | break; | |
1121 | ||
1122 | data->tx_in_flight++; | |
1123 | } | |
1124 | usb_scuttle_anchored_urbs(&data->deferred); | |
1125 | } | |
1126 | ||
6a88adf2 MH |
1127 | static int btusb_resume(struct usb_interface *intf) |
1128 | { | |
1129 | struct btusb_data *data = usb_get_intfdata(intf); | |
1130 | struct hci_dev *hdev = data->hdev; | |
7bee549e | 1131 | int err = 0; |
6a88adf2 MH |
1132 | |
1133 | BT_DBG("intf %p", intf); | |
1134 | ||
1135 | if (--data->suspend_count) | |
1136 | return 0; | |
1137 | ||
1138 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
7bee549e | 1139 | goto done; |
6a88adf2 MH |
1140 | |
1141 | if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) { | |
1142 | err = btusb_submit_intr_urb(hdev, GFP_NOIO); | |
1143 | if (err < 0) { | |
1144 | clear_bit(BTUSB_INTR_RUNNING, &data->flags); | |
7bee549e | 1145 | goto failed; |
6a88adf2 MH |
1146 | } |
1147 | } | |
1148 | ||
1149 | if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) { | |
43c2e57f MH |
1150 | err = btusb_submit_bulk_urb(hdev, GFP_NOIO); |
1151 | if (err < 0) { | |
6a88adf2 | 1152 | clear_bit(BTUSB_BULK_RUNNING, &data->flags); |
7bee549e ON |
1153 | goto failed; |
1154 | } | |
1155 | ||
1156 | btusb_submit_bulk_urb(hdev, GFP_NOIO); | |
6a88adf2 MH |
1157 | } |
1158 | ||
1159 | if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) { | |
1160 | if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0) | |
1161 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); | |
1162 | else | |
1163 | btusb_submit_isoc_urb(hdev, GFP_NOIO); | |
1164 | } | |
1165 | ||
7bee549e ON |
1166 | spin_lock_irq(&data->txlock); |
1167 | play_deferred(data); | |
1168 | clear_bit(BTUSB_SUSPENDING, &data->flags); | |
1169 | spin_unlock_irq(&data->txlock); | |
1170 | schedule_work(&data->work); | |
1171 | ||
6a88adf2 | 1172 | return 0; |
7bee549e ON |
1173 | |
1174 | failed: | |
1175 | usb_scuttle_anchored_urbs(&data->deferred); | |
1176 | done: | |
1177 | spin_lock_irq(&data->txlock); | |
1178 | clear_bit(BTUSB_SUSPENDING, &data->flags); | |
1179 | spin_unlock_irq(&data->txlock); | |
1180 | ||
1181 | return err; | |
6a88adf2 | 1182 | } |
7bee549e | 1183 | #endif |
6a88adf2 | 1184 | |
5e23b923 MH |
1185 | static struct usb_driver btusb_driver = { |
1186 | .name = "btusb", | |
1187 | .probe = btusb_probe, | |
1188 | .disconnect = btusb_disconnect, | |
7bee549e | 1189 | #ifdef CONFIG_PM |
6a88adf2 MH |
1190 | .suspend = btusb_suspend, |
1191 | .resume = btusb_resume, | |
7bee549e | 1192 | #endif |
5e23b923 | 1193 | .id_table = btusb_table, |
7bee549e | 1194 | .supports_autosuspend = 1, |
5e23b923 MH |
1195 | }; |
1196 | ||
1197 | static int __init btusb_init(void) | |
1198 | { | |
1199 | BT_INFO("Generic Bluetooth USB driver ver %s", VERSION); | |
1200 | ||
1201 | return usb_register(&btusb_driver); | |
1202 | } | |
1203 | ||
1204 | static void __exit btusb_exit(void) | |
1205 | { | |
1206 | usb_deregister(&btusb_driver); | |
1207 | } | |
1208 | ||
1209 | module_init(btusb_init); | |
1210 | module_exit(btusb_exit); | |
1211 | ||
cfeb4145 MH |
1212 | module_param(ignore_dga, bool, 0644); |
1213 | MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001"); | |
1214 | ||
1215 | module_param(ignore_csr, bool, 0644); | |
1216 | MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001"); | |
1217 | ||
1218 | module_param(ignore_sniffer, bool, 0644); | |
1219 | MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002"); | |
1220 | ||
1221 | module_param(disable_scofix, bool, 0644); | |
1222 | MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size"); | |
1223 | ||
1224 | module_param(force_scofix, bool, 0644); | |
1225 | MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size"); | |
1226 | ||
1227 | module_param(reset, bool, 0644); | |
1228 | MODULE_PARM_DESC(reset, "Send HCI reset command on initialization"); | |
1229 | ||
5e23b923 MH |
1230 | MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); |
1231 | MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION); | |
1232 | MODULE_VERSION(VERSION); | |
1233 | MODULE_LICENSE("GPL"); |