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Commit | Line | Data |
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5e23b923 MH |
1 | /* |
2 | * | |
3 | * Generic Bluetooth USB driver | |
4 | * | |
9bfa35fe | 5 | * Copyright (C) 2005-2008 Marcel Holtmann <marcel@holtmann.org> |
5e23b923 MH |
6 | * |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
21 | * | |
22 | */ | |
23 | ||
24 | #include <linux/kernel.h> | |
25 | #include <linux/module.h> | |
26 | #include <linux/init.h> | |
27 | #include <linux/slab.h> | |
28 | #include <linux/types.h> | |
29 | #include <linux/sched.h> | |
30 | #include <linux/errno.h> | |
31 | #include <linux/skbuff.h> | |
32 | ||
33 | #include <linux/usb.h> | |
34 | ||
35 | #include <net/bluetooth/bluetooth.h> | |
36 | #include <net/bluetooth/hci_core.h> | |
37 | ||
7bee549e | 38 | #define VERSION "0.6" |
cfeb4145 MH |
39 | |
40 | static int ignore_dga; | |
41 | static int ignore_csr; | |
42 | static int ignore_sniffer; | |
43 | static int disable_scofix; | |
44 | static int force_scofix; | |
7a9d4020 MH |
45 | |
46 | static int reset = 1; | |
cfeb4145 MH |
47 | |
48 | static struct usb_driver btusb_driver; | |
49 | ||
50 | #define BTUSB_IGNORE 0x01 | |
7a9d4020 MH |
51 | #define BTUSB_DIGIANSWER 0x02 |
52 | #define BTUSB_CSR 0x04 | |
53 | #define BTUSB_SNIFFER 0x08 | |
54 | #define BTUSB_BCM92035 0x10 | |
55 | #define BTUSB_BROKEN_ISOC 0x20 | |
56 | #define BTUSB_WRONG_SCO_MTU 0x40 | |
5e23b923 MH |
57 | |
58 | static struct usb_device_id btusb_table[] = { | |
59 | /* Generic Bluetooth USB device */ | |
60 | { USB_DEVICE_INFO(0xe0, 0x01, 0x01) }, | |
61 | ||
3cd01976 NI |
62 | /* Apple MacBookPro 7,1 */ |
63 | { USB_DEVICE(0x05ac, 0x8213) }, | |
64 | ||
0a79f674 CL |
65 | /* Apple iMac11,1 */ |
66 | { USB_DEVICE(0x05ac, 0x8215) }, | |
67 | ||
9c047157 NI |
68 | /* Apple MacBookPro6,2 */ |
69 | { USB_DEVICE(0x05ac, 0x8218) }, | |
70 | ||
3e3ede7d EH |
71 | /* Apple MacBookAir3,1, MacBookAir3,2 */ |
72 | { USB_DEVICE(0x05ac, 0x821b) }, | |
73 | ||
cfeb4145 MH |
74 | /* AVM BlueFRITZ! USB v2.0 */ |
75 | { USB_DEVICE(0x057c, 0x3800) }, | |
76 | ||
77 | /* Bluetooth Ultraport Module from IBM */ | |
78 | { USB_DEVICE(0x04bf, 0x030a) }, | |
79 | ||
80 | /* ALPS Modules with non-standard id */ | |
81 | { USB_DEVICE(0x044e, 0x3001) }, | |
82 | { USB_DEVICE(0x044e, 0x3002) }, | |
83 | ||
84 | /* Ericsson with non-standard id */ | |
85 | { USB_DEVICE(0x0bdb, 0x1002) }, | |
86 | ||
87 | /* Canyon CN-BTU1 with HID interfaces */ | |
7a9d4020 | 88 | { USB_DEVICE(0x0c10, 0x0000) }, |
cfeb4145 | 89 | |
5e23b923 MH |
90 | { } /* Terminating entry */ |
91 | }; | |
92 | ||
93 | MODULE_DEVICE_TABLE(usb, btusb_table); | |
94 | ||
95 | static struct usb_device_id blacklist_table[] = { | |
cfeb4145 MH |
96 | /* CSR BlueCore devices */ |
97 | { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR }, | |
98 | ||
99 | /* Broadcom BCM2033 without firmware */ | |
100 | { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE }, | |
101 | ||
be93112a BS |
102 | /* Atheros 3011 with sflash firmware */ |
103 | { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE }, | |
104 | ||
509e7861 CYC |
105 | /* Atheros AR9285 Malbec with sflash firmware */ |
106 | { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE }, | |
107 | ||
e9036e33 CYC |
108 | /* Atheros AR5BBU12 with sflash firmware */ |
109 | { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE }, | |
110 | ||
cfeb4145 | 111 | /* Broadcom BCM2035 */ |
7a9d4020 MH |
112 | { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU }, |
113 | { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU }, | |
114 | { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 }, | |
cfeb4145 MH |
115 | |
116 | /* Broadcom BCM2045 */ | |
7a9d4020 MH |
117 | { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU }, |
118 | { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU }, | |
bdbef3d6 | 119 | |
cfeb4145 | 120 | /* IBM/Lenovo ThinkPad with Broadcom chip */ |
7a9d4020 MH |
121 | { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU }, |
122 | { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU }, | |
cfeb4145 MH |
123 | |
124 | /* HP laptop with Broadcom chip */ | |
7a9d4020 | 125 | { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU }, |
cfeb4145 MH |
126 | |
127 | /* Dell laptop with Broadcom chip */ | |
7a9d4020 | 128 | { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU }, |
cfeb4145 | 129 | |
5ddd4a60 | 130 | /* Dell Wireless 370 and 410 devices */ |
7a9d4020 | 131 | { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU }, |
5ddd4a60 | 132 | { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU }, |
cfeb4145 | 133 | |
7a9d4020 MH |
134 | /* Belkin F8T012 and F8T013 devices */ |
135 | { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU }, | |
136 | { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU }, | |
cfeb4145 | 137 | |
5ddd4a60 MH |
138 | /* Asus WL-BTD202 device */ |
139 | { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU }, | |
140 | ||
141 | /* Kensington Bluetooth USB adapter */ | |
142 | { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU }, | |
143 | ||
cfeb4145 MH |
144 | /* RTX Telecom based adapters with buggy SCO support */ |
145 | { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC }, | |
146 | { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC }, | |
147 | ||
148 | /* CONWISE Technology based adapters with buggy SCO support */ | |
149 | { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC }, | |
150 | ||
cfeb4145 MH |
151 | /* Digianswer devices */ |
152 | { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER }, | |
153 | { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE }, | |
154 | ||
155 | /* CSR BlueCore Bluetooth Sniffer */ | |
156 | { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER }, | |
157 | ||
158 | /* Frontline ComProbe Bluetooth Sniffer */ | |
159 | { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER }, | |
160 | ||
5e23b923 MH |
161 | { } /* Terminating entry */ |
162 | }; | |
163 | ||
9bfa35fe MH |
164 | #define BTUSB_MAX_ISOC_FRAMES 10 |
165 | ||
5e23b923 MH |
166 | #define BTUSB_INTR_RUNNING 0 |
167 | #define BTUSB_BULK_RUNNING 1 | |
9bfa35fe | 168 | #define BTUSB_ISOC_RUNNING 2 |
7bee549e | 169 | #define BTUSB_SUSPENDING 3 |
08b8b6c4 | 170 | #define BTUSB_DID_ISO_RESUME 4 |
5e23b923 MH |
171 | |
172 | struct btusb_data { | |
173 | struct hci_dev *hdev; | |
174 | struct usb_device *udev; | |
5fbcd260 | 175 | struct usb_interface *intf; |
9bfa35fe | 176 | struct usb_interface *isoc; |
5e23b923 MH |
177 | |
178 | spinlock_t lock; | |
179 | ||
180 | unsigned long flags; | |
181 | ||
182 | struct work_struct work; | |
7bee549e | 183 | struct work_struct waker; |
5e23b923 MH |
184 | |
185 | struct usb_anchor tx_anchor; | |
186 | struct usb_anchor intr_anchor; | |
187 | struct usb_anchor bulk_anchor; | |
9bfa35fe | 188 | struct usb_anchor isoc_anchor; |
7bee549e ON |
189 | struct usb_anchor deferred; |
190 | int tx_in_flight; | |
191 | spinlock_t txlock; | |
5e23b923 MH |
192 | |
193 | struct usb_endpoint_descriptor *intr_ep; | |
194 | struct usb_endpoint_descriptor *bulk_tx_ep; | |
195 | struct usb_endpoint_descriptor *bulk_rx_ep; | |
9bfa35fe MH |
196 | struct usb_endpoint_descriptor *isoc_tx_ep; |
197 | struct usb_endpoint_descriptor *isoc_rx_ep; | |
198 | ||
7a9d4020 MH |
199 | __u8 cmdreq_type; |
200 | ||
43c2e57f | 201 | unsigned int sco_num; |
9bfa35fe | 202 | int isoc_altsetting; |
6a88adf2 | 203 | int suspend_count; |
5e23b923 MH |
204 | }; |
205 | ||
7bee549e ON |
206 | static int inc_tx(struct btusb_data *data) |
207 | { | |
208 | unsigned long flags; | |
209 | int rv; | |
210 | ||
211 | spin_lock_irqsave(&data->txlock, flags); | |
212 | rv = test_bit(BTUSB_SUSPENDING, &data->flags); | |
213 | if (!rv) | |
214 | data->tx_in_flight++; | |
215 | spin_unlock_irqrestore(&data->txlock, flags); | |
216 | ||
217 | return rv; | |
218 | } | |
219 | ||
5e23b923 MH |
220 | static void btusb_intr_complete(struct urb *urb) |
221 | { | |
222 | struct hci_dev *hdev = urb->context; | |
223 | struct btusb_data *data = hdev->driver_data; | |
224 | int err; | |
225 | ||
226 | BT_DBG("%s urb %p status %d count %d", hdev->name, | |
227 | urb, urb->status, urb->actual_length); | |
228 | ||
229 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
230 | return; | |
231 | ||
232 | if (urb->status == 0) { | |
9bfa35fe MH |
233 | hdev->stat.byte_rx += urb->actual_length; |
234 | ||
5e23b923 MH |
235 | if (hci_recv_fragment(hdev, HCI_EVENT_PKT, |
236 | urb->transfer_buffer, | |
237 | urb->actual_length) < 0) { | |
238 | BT_ERR("%s corrupted event packet", hdev->name); | |
239 | hdev->stat.err_rx++; | |
240 | } | |
241 | } | |
242 | ||
243 | if (!test_bit(BTUSB_INTR_RUNNING, &data->flags)) | |
244 | return; | |
245 | ||
7bee549e | 246 | usb_mark_last_busy(data->udev); |
5e23b923 MH |
247 | usb_anchor_urb(urb, &data->intr_anchor); |
248 | ||
249 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
250 | if (err < 0) { | |
61faddf6 SS |
251 | if (err != -EPERM) |
252 | BT_ERR("%s urb %p failed to resubmit (%d)", | |
5e23b923 MH |
253 | hdev->name, urb, -err); |
254 | usb_unanchor_urb(urb); | |
255 | } | |
256 | } | |
257 | ||
2eda66f4 | 258 | static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags) |
5e23b923 MH |
259 | { |
260 | struct btusb_data *data = hdev->driver_data; | |
261 | struct urb *urb; | |
262 | unsigned char *buf; | |
263 | unsigned int pipe; | |
264 | int err, size; | |
265 | ||
266 | BT_DBG("%s", hdev->name); | |
267 | ||
9bfa35fe MH |
268 | if (!data->intr_ep) |
269 | return -ENODEV; | |
270 | ||
2eda66f4 | 271 | urb = usb_alloc_urb(0, mem_flags); |
5e23b923 MH |
272 | if (!urb) |
273 | return -ENOMEM; | |
274 | ||
275 | size = le16_to_cpu(data->intr_ep->wMaxPacketSize); | |
276 | ||
2eda66f4 | 277 | buf = kmalloc(size, mem_flags); |
5e23b923 MH |
278 | if (!buf) { |
279 | usb_free_urb(urb); | |
280 | return -ENOMEM; | |
281 | } | |
282 | ||
283 | pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress); | |
284 | ||
285 | usb_fill_int_urb(urb, data->udev, pipe, buf, size, | |
286 | btusb_intr_complete, hdev, | |
287 | data->intr_ep->bInterval); | |
288 | ||
289 | urb->transfer_flags |= URB_FREE_BUFFER; | |
290 | ||
291 | usb_anchor_urb(urb, &data->intr_anchor); | |
292 | ||
2eda66f4 | 293 | err = usb_submit_urb(urb, mem_flags); |
5e23b923 MH |
294 | if (err < 0) { |
295 | BT_ERR("%s urb %p submission failed (%d)", | |
296 | hdev->name, urb, -err); | |
297 | usb_unanchor_urb(urb); | |
5e23b923 MH |
298 | } |
299 | ||
300 | usb_free_urb(urb); | |
301 | ||
302 | return err; | |
303 | } | |
304 | ||
305 | static void btusb_bulk_complete(struct urb *urb) | |
306 | { | |
307 | struct hci_dev *hdev = urb->context; | |
308 | struct btusb_data *data = hdev->driver_data; | |
309 | int err; | |
310 | ||
311 | BT_DBG("%s urb %p status %d count %d", hdev->name, | |
312 | urb, urb->status, urb->actual_length); | |
313 | ||
314 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
315 | return; | |
316 | ||
317 | if (urb->status == 0) { | |
9bfa35fe MH |
318 | hdev->stat.byte_rx += urb->actual_length; |
319 | ||
5e23b923 MH |
320 | if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT, |
321 | urb->transfer_buffer, | |
322 | urb->actual_length) < 0) { | |
323 | BT_ERR("%s corrupted ACL packet", hdev->name); | |
324 | hdev->stat.err_rx++; | |
325 | } | |
326 | } | |
327 | ||
328 | if (!test_bit(BTUSB_BULK_RUNNING, &data->flags)) | |
329 | return; | |
330 | ||
331 | usb_anchor_urb(urb, &data->bulk_anchor); | |
652fd781 | 332 | usb_mark_last_busy(data->udev); |
5e23b923 MH |
333 | |
334 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
335 | if (err < 0) { | |
61faddf6 SS |
336 | if (err != -EPERM) |
337 | BT_ERR("%s urb %p failed to resubmit (%d)", | |
5e23b923 MH |
338 | hdev->name, urb, -err); |
339 | usb_unanchor_urb(urb); | |
340 | } | |
341 | } | |
342 | ||
2eda66f4 | 343 | static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags) |
5e23b923 MH |
344 | { |
345 | struct btusb_data *data = hdev->driver_data; | |
346 | struct urb *urb; | |
347 | unsigned char *buf; | |
348 | unsigned int pipe; | |
290ba200 | 349 | int err, size = HCI_MAX_FRAME_SIZE; |
5e23b923 MH |
350 | |
351 | BT_DBG("%s", hdev->name); | |
352 | ||
9bfa35fe MH |
353 | if (!data->bulk_rx_ep) |
354 | return -ENODEV; | |
355 | ||
2eda66f4 | 356 | urb = usb_alloc_urb(0, mem_flags); |
5e23b923 MH |
357 | if (!urb) |
358 | return -ENOMEM; | |
359 | ||
2eda66f4 | 360 | buf = kmalloc(size, mem_flags); |
5e23b923 MH |
361 | if (!buf) { |
362 | usb_free_urb(urb); | |
363 | return -ENOMEM; | |
364 | } | |
365 | ||
366 | pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress); | |
367 | ||
368 | usb_fill_bulk_urb(urb, data->udev, pipe, | |
369 | buf, size, btusb_bulk_complete, hdev); | |
370 | ||
371 | urb->transfer_flags |= URB_FREE_BUFFER; | |
372 | ||
7bee549e | 373 | usb_mark_last_busy(data->udev); |
5e23b923 MH |
374 | usb_anchor_urb(urb, &data->bulk_anchor); |
375 | ||
2eda66f4 | 376 | err = usb_submit_urb(urb, mem_flags); |
5e23b923 MH |
377 | if (err < 0) { |
378 | BT_ERR("%s urb %p submission failed (%d)", | |
379 | hdev->name, urb, -err); | |
380 | usb_unanchor_urb(urb); | |
5e23b923 MH |
381 | } |
382 | ||
383 | usb_free_urb(urb); | |
384 | ||
385 | return err; | |
386 | } | |
387 | ||
9bfa35fe MH |
388 | static void btusb_isoc_complete(struct urb *urb) |
389 | { | |
390 | struct hci_dev *hdev = urb->context; | |
391 | struct btusb_data *data = hdev->driver_data; | |
392 | int i, err; | |
393 | ||
394 | BT_DBG("%s urb %p status %d count %d", hdev->name, | |
395 | urb, urb->status, urb->actual_length); | |
396 | ||
397 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
398 | return; | |
399 | ||
400 | if (urb->status == 0) { | |
401 | for (i = 0; i < urb->number_of_packets; i++) { | |
402 | unsigned int offset = urb->iso_frame_desc[i].offset; | |
403 | unsigned int length = urb->iso_frame_desc[i].actual_length; | |
404 | ||
405 | if (urb->iso_frame_desc[i].status) | |
406 | continue; | |
407 | ||
408 | hdev->stat.byte_rx += length; | |
409 | ||
410 | if (hci_recv_fragment(hdev, HCI_SCODATA_PKT, | |
411 | urb->transfer_buffer + offset, | |
412 | length) < 0) { | |
413 | BT_ERR("%s corrupted SCO packet", hdev->name); | |
414 | hdev->stat.err_rx++; | |
415 | } | |
416 | } | |
417 | } | |
418 | ||
419 | if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags)) | |
420 | return; | |
421 | ||
422 | usb_anchor_urb(urb, &data->isoc_anchor); | |
423 | ||
424 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
425 | if (err < 0) { | |
61faddf6 SS |
426 | if (err != -EPERM) |
427 | BT_ERR("%s urb %p failed to resubmit (%d)", | |
9bfa35fe MH |
428 | hdev->name, urb, -err); |
429 | usb_unanchor_urb(urb); | |
430 | } | |
431 | } | |
432 | ||
433 | static void inline __fill_isoc_descriptor(struct urb *urb, int len, int mtu) | |
434 | { | |
435 | int i, offset = 0; | |
436 | ||
437 | BT_DBG("len %d mtu %d", len, mtu); | |
438 | ||
439 | for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu; | |
440 | i++, offset += mtu, len -= mtu) { | |
441 | urb->iso_frame_desc[i].offset = offset; | |
442 | urb->iso_frame_desc[i].length = mtu; | |
443 | } | |
444 | ||
445 | if (len && i < BTUSB_MAX_ISOC_FRAMES) { | |
446 | urb->iso_frame_desc[i].offset = offset; | |
447 | urb->iso_frame_desc[i].length = len; | |
448 | i++; | |
449 | } | |
450 | ||
451 | urb->number_of_packets = i; | |
452 | } | |
453 | ||
2eda66f4 | 454 | static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags) |
9bfa35fe MH |
455 | { |
456 | struct btusb_data *data = hdev->driver_data; | |
457 | struct urb *urb; | |
458 | unsigned char *buf; | |
459 | unsigned int pipe; | |
460 | int err, size; | |
461 | ||
462 | BT_DBG("%s", hdev->name); | |
463 | ||
464 | if (!data->isoc_rx_ep) | |
465 | return -ENODEV; | |
466 | ||
2eda66f4 | 467 | urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags); |
9bfa35fe MH |
468 | if (!urb) |
469 | return -ENOMEM; | |
470 | ||
471 | size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) * | |
472 | BTUSB_MAX_ISOC_FRAMES; | |
473 | ||
2eda66f4 | 474 | buf = kmalloc(size, mem_flags); |
9bfa35fe MH |
475 | if (!buf) { |
476 | usb_free_urb(urb); | |
477 | return -ENOMEM; | |
478 | } | |
479 | ||
480 | pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress); | |
481 | ||
482 | urb->dev = data->udev; | |
483 | urb->pipe = pipe; | |
484 | urb->context = hdev; | |
485 | urb->complete = btusb_isoc_complete; | |
486 | urb->interval = data->isoc_rx_ep->bInterval; | |
487 | ||
488 | urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP; | |
489 | urb->transfer_buffer = buf; | |
490 | urb->transfer_buffer_length = size; | |
491 | ||
492 | __fill_isoc_descriptor(urb, size, | |
493 | le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize)); | |
494 | ||
495 | usb_anchor_urb(urb, &data->isoc_anchor); | |
496 | ||
2eda66f4 | 497 | err = usb_submit_urb(urb, mem_flags); |
9bfa35fe MH |
498 | if (err < 0) { |
499 | BT_ERR("%s urb %p submission failed (%d)", | |
500 | hdev->name, urb, -err); | |
501 | usb_unanchor_urb(urb); | |
9bfa35fe MH |
502 | } |
503 | ||
504 | usb_free_urb(urb); | |
505 | ||
506 | return err; | |
507 | } | |
508 | ||
5e23b923 | 509 | static void btusb_tx_complete(struct urb *urb) |
7bee549e ON |
510 | { |
511 | struct sk_buff *skb = urb->context; | |
512 | struct hci_dev *hdev = (struct hci_dev *) skb->dev; | |
513 | struct btusb_data *data = hdev->driver_data; | |
514 | ||
515 | BT_DBG("%s urb %p status %d count %d", hdev->name, | |
516 | urb, urb->status, urb->actual_length); | |
517 | ||
518 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
519 | goto done; | |
520 | ||
521 | if (!urb->status) | |
522 | hdev->stat.byte_tx += urb->transfer_buffer_length; | |
523 | else | |
524 | hdev->stat.err_tx++; | |
525 | ||
526 | done: | |
527 | spin_lock(&data->txlock); | |
528 | data->tx_in_flight--; | |
529 | spin_unlock(&data->txlock); | |
530 | ||
531 | kfree(urb->setup_packet); | |
532 | ||
533 | kfree_skb(skb); | |
534 | } | |
535 | ||
536 | static void btusb_isoc_tx_complete(struct urb *urb) | |
5e23b923 MH |
537 | { |
538 | struct sk_buff *skb = urb->context; | |
539 | struct hci_dev *hdev = (struct hci_dev *) skb->dev; | |
540 | ||
541 | BT_DBG("%s urb %p status %d count %d", hdev->name, | |
542 | urb, urb->status, urb->actual_length); | |
543 | ||
544 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
545 | goto done; | |
546 | ||
547 | if (!urb->status) | |
548 | hdev->stat.byte_tx += urb->transfer_buffer_length; | |
549 | else | |
550 | hdev->stat.err_tx++; | |
551 | ||
552 | done: | |
553 | kfree(urb->setup_packet); | |
554 | ||
555 | kfree_skb(skb); | |
556 | } | |
557 | ||
558 | static int btusb_open(struct hci_dev *hdev) | |
559 | { | |
560 | struct btusb_data *data = hdev->driver_data; | |
561 | int err; | |
562 | ||
563 | BT_DBG("%s", hdev->name); | |
564 | ||
7bee549e ON |
565 | err = usb_autopm_get_interface(data->intf); |
566 | if (err < 0) | |
567 | return err; | |
568 | ||
569 | data->intf->needs_remote_wakeup = 1; | |
570 | ||
5e23b923 | 571 | if (test_and_set_bit(HCI_RUNNING, &hdev->flags)) |
7bee549e | 572 | goto done; |
5e23b923 MH |
573 | |
574 | if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags)) | |
7bee549e | 575 | goto done; |
5e23b923 | 576 | |
2eda66f4 | 577 | err = btusb_submit_intr_urb(hdev, GFP_KERNEL); |
43c2e57f MH |
578 | if (err < 0) |
579 | goto failed; | |
580 | ||
581 | err = btusb_submit_bulk_urb(hdev, GFP_KERNEL); | |
5e23b923 | 582 | if (err < 0) { |
43c2e57f MH |
583 | usb_kill_anchored_urbs(&data->intr_anchor); |
584 | goto failed; | |
5e23b923 MH |
585 | } |
586 | ||
43c2e57f MH |
587 | set_bit(BTUSB_BULK_RUNNING, &data->flags); |
588 | btusb_submit_bulk_urb(hdev, GFP_KERNEL); | |
589 | ||
7bee549e ON |
590 | done: |
591 | usb_autopm_put_interface(data->intf); | |
43c2e57f MH |
592 | return 0; |
593 | ||
594 | failed: | |
595 | clear_bit(BTUSB_INTR_RUNNING, &data->flags); | |
596 | clear_bit(HCI_RUNNING, &hdev->flags); | |
7bee549e | 597 | usb_autopm_put_interface(data->intf); |
5e23b923 MH |
598 | return err; |
599 | } | |
600 | ||
7bee549e ON |
601 | static void btusb_stop_traffic(struct btusb_data *data) |
602 | { | |
603 | usb_kill_anchored_urbs(&data->intr_anchor); | |
604 | usb_kill_anchored_urbs(&data->bulk_anchor); | |
605 | usb_kill_anchored_urbs(&data->isoc_anchor); | |
606 | } | |
607 | ||
5e23b923 MH |
608 | static int btusb_close(struct hci_dev *hdev) |
609 | { | |
610 | struct btusb_data *data = hdev->driver_data; | |
7bee549e | 611 | int err; |
5e23b923 MH |
612 | |
613 | BT_DBG("%s", hdev->name); | |
614 | ||
615 | if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags)) | |
616 | return 0; | |
617 | ||
e8c3c3d2 | 618 | cancel_work_sync(&data->work); |
404291ac | 619 | cancel_work_sync(&data->waker); |
e8c3c3d2 | 620 | |
9bfa35fe | 621 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); |
5e23b923 | 622 | clear_bit(BTUSB_BULK_RUNNING, &data->flags); |
5e23b923 | 623 | clear_bit(BTUSB_INTR_RUNNING, &data->flags); |
7bee549e ON |
624 | |
625 | btusb_stop_traffic(data); | |
626 | err = usb_autopm_get_interface(data->intf); | |
627 | if (err < 0) | |
7b8e2c1d | 628 | goto failed; |
7bee549e ON |
629 | |
630 | data->intf->needs_remote_wakeup = 0; | |
631 | usb_autopm_put_interface(data->intf); | |
5e23b923 | 632 | |
7b8e2c1d ON |
633 | failed: |
634 | usb_scuttle_anchored_urbs(&data->deferred); | |
5e23b923 MH |
635 | return 0; |
636 | } | |
637 | ||
638 | static int btusb_flush(struct hci_dev *hdev) | |
639 | { | |
640 | struct btusb_data *data = hdev->driver_data; | |
641 | ||
642 | BT_DBG("%s", hdev->name); | |
643 | ||
644 | usb_kill_anchored_urbs(&data->tx_anchor); | |
645 | ||
646 | return 0; | |
647 | } | |
648 | ||
649 | static int btusb_send_frame(struct sk_buff *skb) | |
650 | { | |
651 | struct hci_dev *hdev = (struct hci_dev *) skb->dev; | |
652 | struct btusb_data *data = hdev->driver_data; | |
653 | struct usb_ctrlrequest *dr; | |
654 | struct urb *urb; | |
655 | unsigned int pipe; | |
656 | int err; | |
657 | ||
658 | BT_DBG("%s", hdev->name); | |
659 | ||
660 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
661 | return -EBUSY; | |
662 | ||
663 | switch (bt_cb(skb)->pkt_type) { | |
664 | case HCI_COMMAND_PKT: | |
665 | urb = usb_alloc_urb(0, GFP_ATOMIC); | |
666 | if (!urb) | |
667 | return -ENOMEM; | |
668 | ||
669 | dr = kmalloc(sizeof(*dr), GFP_ATOMIC); | |
670 | if (!dr) { | |
671 | usb_free_urb(urb); | |
672 | return -ENOMEM; | |
673 | } | |
674 | ||
7a9d4020 | 675 | dr->bRequestType = data->cmdreq_type; |
5e23b923 MH |
676 | dr->bRequest = 0; |
677 | dr->wIndex = 0; | |
678 | dr->wValue = 0; | |
679 | dr->wLength = __cpu_to_le16(skb->len); | |
680 | ||
681 | pipe = usb_sndctrlpipe(data->udev, 0x00); | |
682 | ||
683 | usb_fill_control_urb(urb, data->udev, pipe, (void *) dr, | |
684 | skb->data, skb->len, btusb_tx_complete, skb); | |
685 | ||
686 | hdev->stat.cmd_tx++; | |
687 | break; | |
688 | ||
689 | case HCI_ACLDATA_PKT: | |
9bfa35fe MH |
690 | if (!data->bulk_tx_ep || hdev->conn_hash.acl_num < 1) |
691 | return -ENODEV; | |
692 | ||
5e23b923 MH |
693 | urb = usb_alloc_urb(0, GFP_ATOMIC); |
694 | if (!urb) | |
695 | return -ENOMEM; | |
696 | ||
697 | pipe = usb_sndbulkpipe(data->udev, | |
698 | data->bulk_tx_ep->bEndpointAddress); | |
699 | ||
700 | usb_fill_bulk_urb(urb, data->udev, pipe, | |
701 | skb->data, skb->len, btusb_tx_complete, skb); | |
702 | ||
703 | hdev->stat.acl_tx++; | |
704 | break; | |
705 | ||
706 | case HCI_SCODATA_PKT: | |
9bfa35fe MH |
707 | if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1) |
708 | return -ENODEV; | |
709 | ||
710 | urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC); | |
711 | if (!urb) | |
712 | return -ENOMEM; | |
713 | ||
714 | pipe = usb_sndisocpipe(data->udev, | |
715 | data->isoc_tx_ep->bEndpointAddress); | |
716 | ||
717 | urb->dev = data->udev; | |
718 | urb->pipe = pipe; | |
719 | urb->context = skb; | |
7bee549e | 720 | urb->complete = btusb_isoc_tx_complete; |
9bfa35fe MH |
721 | urb->interval = data->isoc_tx_ep->bInterval; |
722 | ||
723 | urb->transfer_flags = URB_ISO_ASAP; | |
724 | urb->transfer_buffer = skb->data; | |
725 | urb->transfer_buffer_length = skb->len; | |
726 | ||
727 | __fill_isoc_descriptor(urb, skb->len, | |
728 | le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize)); | |
729 | ||
5e23b923 | 730 | hdev->stat.sco_tx++; |
7bee549e | 731 | goto skip_waking; |
5e23b923 MH |
732 | |
733 | default: | |
734 | return -EILSEQ; | |
735 | } | |
736 | ||
7bee549e ON |
737 | err = inc_tx(data); |
738 | if (err) { | |
739 | usb_anchor_urb(urb, &data->deferred); | |
740 | schedule_work(&data->waker); | |
741 | err = 0; | |
742 | goto done; | |
743 | } | |
744 | ||
745 | skip_waking: | |
5e23b923 MH |
746 | usb_anchor_urb(urb, &data->tx_anchor); |
747 | ||
748 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
749 | if (err < 0) { | |
750 | BT_ERR("%s urb %p submission failed", hdev->name, urb); | |
751 | kfree(urb->setup_packet); | |
752 | usb_unanchor_urb(urb); | |
7bee549e ON |
753 | } else { |
754 | usb_mark_last_busy(data->udev); | |
5e23b923 MH |
755 | } |
756 | ||
757 | usb_free_urb(urb); | |
758 | ||
7bee549e | 759 | done: |
5e23b923 MH |
760 | return err; |
761 | } | |
762 | ||
763 | static void btusb_destruct(struct hci_dev *hdev) | |
764 | { | |
765 | struct btusb_data *data = hdev->driver_data; | |
766 | ||
767 | BT_DBG("%s", hdev->name); | |
768 | ||
769 | kfree(data); | |
770 | } | |
771 | ||
772 | static void btusb_notify(struct hci_dev *hdev, unsigned int evt) | |
773 | { | |
774 | struct btusb_data *data = hdev->driver_data; | |
775 | ||
776 | BT_DBG("%s evt %d", hdev->name, evt); | |
777 | ||
43c2e57f MH |
778 | if (hdev->conn_hash.sco_num != data->sco_num) { |
779 | data->sco_num = hdev->conn_hash.sco_num; | |
780 | schedule_work(&data->work); | |
a780efa8 | 781 | } |
5e23b923 MH |
782 | } |
783 | ||
9bfa35fe MH |
784 | static int inline __set_isoc_interface(struct hci_dev *hdev, int altsetting) |
785 | { | |
786 | struct btusb_data *data = hdev->driver_data; | |
787 | struct usb_interface *intf = data->isoc; | |
788 | struct usb_endpoint_descriptor *ep_desc; | |
789 | int i, err; | |
790 | ||
791 | if (!data->isoc) | |
792 | return -ENODEV; | |
793 | ||
794 | err = usb_set_interface(data->udev, 1, altsetting); | |
795 | if (err < 0) { | |
796 | BT_ERR("%s setting interface failed (%d)", hdev->name, -err); | |
797 | return err; | |
798 | } | |
799 | ||
800 | data->isoc_altsetting = altsetting; | |
801 | ||
802 | data->isoc_tx_ep = NULL; | |
803 | data->isoc_rx_ep = NULL; | |
804 | ||
805 | for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { | |
806 | ep_desc = &intf->cur_altsetting->endpoint[i].desc; | |
807 | ||
808 | if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) { | |
809 | data->isoc_tx_ep = ep_desc; | |
810 | continue; | |
811 | } | |
812 | ||
813 | if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) { | |
814 | data->isoc_rx_ep = ep_desc; | |
815 | continue; | |
816 | } | |
817 | } | |
818 | ||
819 | if (!data->isoc_tx_ep || !data->isoc_rx_ep) { | |
820 | BT_ERR("%s invalid SCO descriptors", hdev->name); | |
821 | return -ENODEV; | |
822 | } | |
823 | ||
824 | return 0; | |
825 | } | |
826 | ||
5e23b923 MH |
827 | static void btusb_work(struct work_struct *work) |
828 | { | |
829 | struct btusb_data *data = container_of(work, struct btusb_data, work); | |
830 | struct hci_dev *hdev = data->hdev; | |
7bee549e | 831 | int err; |
5e23b923 | 832 | |
9bfa35fe | 833 | if (hdev->conn_hash.sco_num > 0) { |
08b8b6c4 | 834 | if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) { |
8efdd0cd | 835 | err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf); |
7bee549e ON |
836 | if (err < 0) { |
837 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); | |
838 | usb_kill_anchored_urbs(&data->isoc_anchor); | |
839 | return; | |
840 | } | |
841 | ||
08b8b6c4 | 842 | set_bit(BTUSB_DID_ISO_RESUME, &data->flags); |
7bee549e | 843 | } |
9bfa35fe MH |
844 | if (data->isoc_altsetting != 2) { |
845 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); | |
846 | usb_kill_anchored_urbs(&data->isoc_anchor); | |
847 | ||
848 | if (__set_isoc_interface(hdev, 2) < 0) | |
849 | return; | |
850 | } | |
851 | ||
852 | if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) { | |
2eda66f4 | 853 | if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0) |
9bfa35fe MH |
854 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); |
855 | else | |
2eda66f4 | 856 | btusb_submit_isoc_urb(hdev, GFP_KERNEL); |
9bfa35fe MH |
857 | } |
858 | } else { | |
859 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); | |
860 | usb_kill_anchored_urbs(&data->isoc_anchor); | |
861 | ||
862 | __set_isoc_interface(hdev, 0); | |
08b8b6c4 | 863 | if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags)) |
8efdd0cd | 864 | usb_autopm_put_interface(data->isoc ? data->isoc : data->intf); |
5e23b923 MH |
865 | } |
866 | } | |
867 | ||
7bee549e ON |
868 | static void btusb_waker(struct work_struct *work) |
869 | { | |
870 | struct btusb_data *data = container_of(work, struct btusb_data, waker); | |
871 | int err; | |
872 | ||
873 | err = usb_autopm_get_interface(data->intf); | |
874 | if (err < 0) | |
875 | return; | |
876 | ||
877 | usb_autopm_put_interface(data->intf); | |
878 | } | |
879 | ||
5e23b923 MH |
880 | static int btusb_probe(struct usb_interface *intf, |
881 | const struct usb_device_id *id) | |
882 | { | |
883 | struct usb_endpoint_descriptor *ep_desc; | |
884 | struct btusb_data *data; | |
885 | struct hci_dev *hdev; | |
886 | int i, err; | |
887 | ||
888 | BT_DBG("intf %p id %p", intf, id); | |
889 | ||
cfeb4145 | 890 | /* interface numbers are hardcoded in the spec */ |
5e23b923 MH |
891 | if (intf->cur_altsetting->desc.bInterfaceNumber != 0) |
892 | return -ENODEV; | |
893 | ||
894 | if (!id->driver_info) { | |
895 | const struct usb_device_id *match; | |
896 | match = usb_match_id(intf, blacklist_table); | |
897 | if (match) | |
898 | id = match; | |
899 | } | |
900 | ||
cfeb4145 MH |
901 | if (id->driver_info == BTUSB_IGNORE) |
902 | return -ENODEV; | |
903 | ||
904 | if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER) | |
905 | return -ENODEV; | |
906 | ||
907 | if (ignore_csr && id->driver_info & BTUSB_CSR) | |
908 | return -ENODEV; | |
909 | ||
910 | if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER) | |
911 | return -ENODEV; | |
912 | ||
5e23b923 MH |
913 | data = kzalloc(sizeof(*data), GFP_KERNEL); |
914 | if (!data) | |
915 | return -ENOMEM; | |
916 | ||
917 | for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { | |
918 | ep_desc = &intf->cur_altsetting->endpoint[i].desc; | |
919 | ||
920 | if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) { | |
921 | data->intr_ep = ep_desc; | |
922 | continue; | |
923 | } | |
924 | ||
925 | if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { | |
926 | data->bulk_tx_ep = ep_desc; | |
927 | continue; | |
928 | } | |
929 | ||
930 | if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { | |
931 | data->bulk_rx_ep = ep_desc; | |
932 | continue; | |
933 | } | |
934 | } | |
935 | ||
936 | if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) { | |
937 | kfree(data); | |
938 | return -ENODEV; | |
939 | } | |
940 | ||
7a9d4020 MH |
941 | data->cmdreq_type = USB_TYPE_CLASS; |
942 | ||
5e23b923 | 943 | data->udev = interface_to_usbdev(intf); |
5fbcd260 | 944 | data->intf = intf; |
5e23b923 MH |
945 | |
946 | spin_lock_init(&data->lock); | |
947 | ||
948 | INIT_WORK(&data->work, btusb_work); | |
7bee549e ON |
949 | INIT_WORK(&data->waker, btusb_waker); |
950 | spin_lock_init(&data->txlock); | |
5e23b923 MH |
951 | |
952 | init_usb_anchor(&data->tx_anchor); | |
953 | init_usb_anchor(&data->intr_anchor); | |
954 | init_usb_anchor(&data->bulk_anchor); | |
9bfa35fe | 955 | init_usb_anchor(&data->isoc_anchor); |
7bee549e | 956 | init_usb_anchor(&data->deferred); |
5e23b923 MH |
957 | |
958 | hdev = hci_alloc_dev(); | |
959 | if (!hdev) { | |
960 | kfree(data); | |
961 | return -ENOMEM; | |
962 | } | |
963 | ||
c13854ce | 964 | hdev->bus = HCI_USB; |
5e23b923 MH |
965 | hdev->driver_data = data; |
966 | ||
967 | data->hdev = hdev; | |
968 | ||
969 | SET_HCIDEV_DEV(hdev, &intf->dev); | |
970 | ||
971 | hdev->open = btusb_open; | |
972 | hdev->close = btusb_close; | |
973 | hdev->flush = btusb_flush; | |
974 | hdev->send = btusb_send_frame; | |
975 | hdev->destruct = btusb_destruct; | |
976 | hdev->notify = btusb_notify; | |
977 | ||
978 | hdev->owner = THIS_MODULE; | |
979 | ||
7a9d4020 | 980 | /* Interface numbers are hardcoded in the specification */ |
9bfa35fe MH |
981 | data->isoc = usb_ifnum_to_if(data->udev, 1); |
982 | ||
7a9d4020 MH |
983 | if (!reset) |
984 | set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks); | |
cfeb4145 MH |
985 | |
986 | if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) { | |
987 | if (!disable_scofix) | |
988 | set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks); | |
989 | } | |
990 | ||
9bfa35fe MH |
991 | if (id->driver_info & BTUSB_BROKEN_ISOC) |
992 | data->isoc = NULL; | |
993 | ||
7a9d4020 MH |
994 | if (id->driver_info & BTUSB_DIGIANSWER) { |
995 | data->cmdreq_type = USB_TYPE_VENDOR; | |
996 | set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks); | |
997 | } | |
998 | ||
999 | if (id->driver_info & BTUSB_CSR) { | |
1000 | struct usb_device *udev = data->udev; | |
1001 | ||
1002 | /* Old firmware would otherwise execute USB reset */ | |
1003 | if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117) | |
1004 | set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks); | |
1005 | } | |
1006 | ||
cfeb4145 | 1007 | if (id->driver_info & BTUSB_SNIFFER) { |
9bfa35fe | 1008 | struct usb_device *udev = data->udev; |
cfeb4145 | 1009 | |
7a9d4020 | 1010 | /* New sniffer firmware has crippled HCI interface */ |
cfeb4145 MH |
1011 | if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997) |
1012 | set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); | |
9bfa35fe MH |
1013 | |
1014 | data->isoc = NULL; | |
cfeb4145 MH |
1015 | } |
1016 | ||
1017 | if (id->driver_info & BTUSB_BCM92035) { | |
1018 | unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 }; | |
1019 | struct sk_buff *skb; | |
1020 | ||
1021 | skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL); | |
1022 | if (skb) { | |
1023 | memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd)); | |
1024 | skb_queue_tail(&hdev->driver_init, skb); | |
1025 | } | |
1026 | } | |
5e23b923 | 1027 | |
9bfa35fe MH |
1028 | if (data->isoc) { |
1029 | err = usb_driver_claim_interface(&btusb_driver, | |
5fbcd260 | 1030 | data->isoc, data); |
9bfa35fe MH |
1031 | if (err < 0) { |
1032 | hci_free_dev(hdev); | |
1033 | kfree(data); | |
1034 | return err; | |
1035 | } | |
1036 | } | |
1037 | ||
5e23b923 MH |
1038 | err = hci_register_dev(hdev); |
1039 | if (err < 0) { | |
1040 | hci_free_dev(hdev); | |
1041 | kfree(data); | |
1042 | return err; | |
1043 | } | |
1044 | ||
1045 | usb_set_intfdata(intf, data); | |
1046 | ||
1047 | return 0; | |
1048 | } | |
1049 | ||
1050 | static void btusb_disconnect(struct usb_interface *intf) | |
1051 | { | |
1052 | struct btusb_data *data = usb_get_intfdata(intf); | |
1053 | struct hci_dev *hdev; | |
1054 | ||
1055 | BT_DBG("intf %p", intf); | |
1056 | ||
1057 | if (!data) | |
1058 | return; | |
1059 | ||
1060 | hdev = data->hdev; | |
1061 | ||
5fbcd260 | 1062 | __hci_dev_hold(hdev); |
9bfa35fe | 1063 | |
5fbcd260 MH |
1064 | usb_set_intfdata(data->intf, NULL); |
1065 | ||
1066 | if (data->isoc) | |
1067 | usb_set_intfdata(data->isoc, NULL); | |
5e23b923 MH |
1068 | |
1069 | hci_unregister_dev(hdev); | |
1070 | ||
5fbcd260 MH |
1071 | if (intf == data->isoc) |
1072 | usb_driver_release_interface(&btusb_driver, data->intf); | |
1073 | else if (data->isoc) | |
1074 | usb_driver_release_interface(&btusb_driver, data->isoc); | |
1075 | ||
1076 | __hci_dev_put(hdev); | |
1077 | ||
5e23b923 MH |
1078 | hci_free_dev(hdev); |
1079 | } | |
1080 | ||
7bee549e | 1081 | #ifdef CONFIG_PM |
6a88adf2 MH |
1082 | static int btusb_suspend(struct usb_interface *intf, pm_message_t message) |
1083 | { | |
1084 | struct btusb_data *data = usb_get_intfdata(intf); | |
1085 | ||
1086 | BT_DBG("intf %p", intf); | |
1087 | ||
1088 | if (data->suspend_count++) | |
1089 | return 0; | |
1090 | ||
7bee549e | 1091 | spin_lock_irq(&data->txlock); |
fb34d537 | 1092 | if (!((message.event & PM_EVENT_AUTO) && data->tx_in_flight)) { |
7bee549e ON |
1093 | set_bit(BTUSB_SUSPENDING, &data->flags); |
1094 | spin_unlock_irq(&data->txlock); | |
1095 | } else { | |
1096 | spin_unlock_irq(&data->txlock); | |
1097 | data->suspend_count--; | |
1098 | return -EBUSY; | |
1099 | } | |
1100 | ||
6a88adf2 MH |
1101 | cancel_work_sync(&data->work); |
1102 | ||
7bee549e | 1103 | btusb_stop_traffic(data); |
6a88adf2 MH |
1104 | usb_kill_anchored_urbs(&data->tx_anchor); |
1105 | ||
6a88adf2 MH |
1106 | return 0; |
1107 | } | |
1108 | ||
7bee549e ON |
1109 | static void play_deferred(struct btusb_data *data) |
1110 | { | |
1111 | struct urb *urb; | |
1112 | int err; | |
1113 | ||
1114 | while ((urb = usb_get_from_anchor(&data->deferred))) { | |
1115 | err = usb_submit_urb(urb, GFP_ATOMIC); | |
1116 | if (err < 0) | |
1117 | break; | |
1118 | ||
1119 | data->tx_in_flight++; | |
1120 | } | |
1121 | usb_scuttle_anchored_urbs(&data->deferred); | |
1122 | } | |
1123 | ||
6a88adf2 MH |
1124 | static int btusb_resume(struct usb_interface *intf) |
1125 | { | |
1126 | struct btusb_data *data = usb_get_intfdata(intf); | |
1127 | struct hci_dev *hdev = data->hdev; | |
7bee549e | 1128 | int err = 0; |
6a88adf2 MH |
1129 | |
1130 | BT_DBG("intf %p", intf); | |
1131 | ||
1132 | if (--data->suspend_count) | |
1133 | return 0; | |
1134 | ||
1135 | if (!test_bit(HCI_RUNNING, &hdev->flags)) | |
7bee549e | 1136 | goto done; |
6a88adf2 MH |
1137 | |
1138 | if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) { | |
1139 | err = btusb_submit_intr_urb(hdev, GFP_NOIO); | |
1140 | if (err < 0) { | |
1141 | clear_bit(BTUSB_INTR_RUNNING, &data->flags); | |
7bee549e | 1142 | goto failed; |
6a88adf2 MH |
1143 | } |
1144 | } | |
1145 | ||
1146 | if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) { | |
43c2e57f MH |
1147 | err = btusb_submit_bulk_urb(hdev, GFP_NOIO); |
1148 | if (err < 0) { | |
6a88adf2 | 1149 | clear_bit(BTUSB_BULK_RUNNING, &data->flags); |
7bee549e ON |
1150 | goto failed; |
1151 | } | |
1152 | ||
1153 | btusb_submit_bulk_urb(hdev, GFP_NOIO); | |
6a88adf2 MH |
1154 | } |
1155 | ||
1156 | if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) { | |
1157 | if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0) | |
1158 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); | |
1159 | else | |
1160 | btusb_submit_isoc_urb(hdev, GFP_NOIO); | |
1161 | } | |
1162 | ||
7bee549e ON |
1163 | spin_lock_irq(&data->txlock); |
1164 | play_deferred(data); | |
1165 | clear_bit(BTUSB_SUSPENDING, &data->flags); | |
1166 | spin_unlock_irq(&data->txlock); | |
1167 | schedule_work(&data->work); | |
1168 | ||
6a88adf2 | 1169 | return 0; |
7bee549e ON |
1170 | |
1171 | failed: | |
1172 | usb_scuttle_anchored_urbs(&data->deferred); | |
1173 | done: | |
1174 | spin_lock_irq(&data->txlock); | |
1175 | clear_bit(BTUSB_SUSPENDING, &data->flags); | |
1176 | spin_unlock_irq(&data->txlock); | |
1177 | ||
1178 | return err; | |
6a88adf2 | 1179 | } |
7bee549e | 1180 | #endif |
6a88adf2 | 1181 | |
5e23b923 MH |
1182 | static struct usb_driver btusb_driver = { |
1183 | .name = "btusb", | |
1184 | .probe = btusb_probe, | |
1185 | .disconnect = btusb_disconnect, | |
7bee549e | 1186 | #ifdef CONFIG_PM |
6a88adf2 MH |
1187 | .suspend = btusb_suspend, |
1188 | .resume = btusb_resume, | |
7bee549e | 1189 | #endif |
5e23b923 | 1190 | .id_table = btusb_table, |
7bee549e | 1191 | .supports_autosuspend = 1, |
5e23b923 MH |
1192 | }; |
1193 | ||
1194 | static int __init btusb_init(void) | |
1195 | { | |
1196 | BT_INFO("Generic Bluetooth USB driver ver %s", VERSION); | |
1197 | ||
1198 | return usb_register(&btusb_driver); | |
1199 | } | |
1200 | ||
1201 | static void __exit btusb_exit(void) | |
1202 | { | |
1203 | usb_deregister(&btusb_driver); | |
1204 | } | |
1205 | ||
1206 | module_init(btusb_init); | |
1207 | module_exit(btusb_exit); | |
1208 | ||
cfeb4145 MH |
1209 | module_param(ignore_dga, bool, 0644); |
1210 | MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001"); | |
1211 | ||
1212 | module_param(ignore_csr, bool, 0644); | |
1213 | MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001"); | |
1214 | ||
1215 | module_param(ignore_sniffer, bool, 0644); | |
1216 | MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002"); | |
1217 | ||
1218 | module_param(disable_scofix, bool, 0644); | |
1219 | MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size"); | |
1220 | ||
1221 | module_param(force_scofix, bool, 0644); | |
1222 | MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size"); | |
1223 | ||
1224 | module_param(reset, bool, 0644); | |
1225 | MODULE_PARM_DESC(reset, "Send HCI reset command on initialization"); | |
1226 | ||
5e23b923 MH |
1227 | MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); |
1228 | MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION); | |
1229 | MODULE_VERSION(VERSION); | |
1230 | MODULE_LICENSE("GPL"); |