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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 | #include <linux/firmware.h> |
27 | |
28 | #include <net/bluetooth/bluetooth.h> |
29 | #include <net/bluetooth/hci_core.h> |
30 | |
31 | #define VERSION "0.6" |
32 | |
33 | static bool ignore_dga; |
34 | static bool ignore_csr; |
35 | static bool ignore_sniffer; |
36 | static bool disable_scofix; |
37 | static bool force_scofix; |
38 | |
39 | static bool reset = 1; |
40 | |
41 | static struct usb_driver btusb_driver; |
42 | |
43 | #define BTUSB_IGNORE 0x01 |
44 | #define BTUSB_DIGIANSWER 0x02 |
45 | #define BTUSB_CSR 0x04 |
46 | #define BTUSB_SNIFFER 0x08 |
47 | #define BTUSB_BCM92035 0x10 |
48 | #define BTUSB_BROKEN_ISOC 0x20 |
49 | #define BTUSB_WRONG_SCO_MTU 0x40 |
50 | #define BTUSB_ATH3012 0x80 |
51 | #define BTUSB_INTEL 0x100 |
52 | |
53 | static struct usb_device_id btusb_table[] = { |
54 | /* Generic Bluetooth USB device */ |
55 | { USB_DEVICE_INFO(0xe0, 0x01, 0x01) }, |
56 | |
57 | /* Apple-specific (Broadcom) devices */ |
58 | { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01) }, |
59 | |
60 | /* MediaTek MT76x0E */ |
61 | { USB_DEVICE(0x0e8d, 0x763f) }, |
62 | |
63 | /* Broadcom SoftSailing reporting vendor specific */ |
64 | { USB_DEVICE(0x0a5c, 0x21e1) }, |
65 | |
66 | /* Apple MacBookPro 7,1 */ |
67 | { USB_DEVICE(0x05ac, 0x8213) }, |
68 | |
69 | /* Apple iMac11,1 */ |
70 | { USB_DEVICE(0x05ac, 0x8215) }, |
71 | |
72 | /* Apple MacBookPro6,2 */ |
73 | { USB_DEVICE(0x05ac, 0x8218) }, |
74 | |
75 | /* Apple MacBookAir3,1, MacBookAir3,2 */ |
76 | { USB_DEVICE(0x05ac, 0x821b) }, |
77 | |
78 | /* Apple MacBookAir4,1 */ |
79 | { USB_DEVICE(0x05ac, 0x821f) }, |
80 | |
81 | /* Apple MacBookPro8,2 */ |
82 | { USB_DEVICE(0x05ac, 0x821a) }, |
83 | |
84 | /* Apple MacMini5,1 */ |
85 | { USB_DEVICE(0x05ac, 0x8281) }, |
86 | |
87 | /* AVM BlueFRITZ! USB v2.0 */ |
88 | { USB_DEVICE(0x057c, 0x3800) }, |
89 | |
90 | /* Bluetooth Ultraport Module from IBM */ |
91 | { USB_DEVICE(0x04bf, 0x030a) }, |
92 | |
93 | /* ALPS Modules with non-standard id */ |
94 | { USB_DEVICE(0x044e, 0x3001) }, |
95 | { USB_DEVICE(0x044e, 0x3002) }, |
96 | |
97 | /* Ericsson with non-standard id */ |
98 | { USB_DEVICE(0x0bdb, 0x1002) }, |
99 | |
100 | /* Canyon CN-BTU1 with HID interfaces */ |
101 | { USB_DEVICE(0x0c10, 0x0000) }, |
102 | |
103 | /* Broadcom BCM20702A0 */ |
104 | { USB_DEVICE(0x0b05, 0x17b5) }, |
105 | { USB_DEVICE(0x0b05, 0x17cb) }, |
106 | { USB_DEVICE(0x04ca, 0x2003) }, |
107 | { USB_DEVICE(0x0489, 0xe042) }, |
108 | { USB_DEVICE(0x413c, 0x8197) }, |
109 | |
110 | /* Foxconn - Hon Hai */ |
111 | { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01) }, |
112 | |
113 | /*Broadcom devices with vendor specific id */ |
114 | { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01) }, |
115 | |
116 | /* Belkin F8065bf - Broadcom based */ |
117 | { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01) }, |
118 | |
119 | { } /* Terminating entry */ |
120 | }; |
121 | |
122 | MODULE_DEVICE_TABLE(usb, btusb_table); |
123 | |
124 | static struct usb_device_id blacklist_table[] = { |
125 | /* CSR BlueCore devices */ |
126 | { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR }, |
127 | |
128 | /* Broadcom BCM2033 without firmware */ |
129 | { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE }, |
130 | |
131 | /* Atheros 3011 with sflash firmware */ |
132 | { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE }, |
133 | { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE }, |
134 | { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE }, |
135 | { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE }, |
136 | { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE }, |
137 | { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE }, |
138 | |
139 | /* Atheros AR9285 Malbec with sflash firmware */ |
140 | { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE }, |
141 | |
142 | /* Atheros 3012 with sflash firmware */ |
143 | { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 }, |
144 | { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 }, |
145 | { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 }, |
146 | { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 }, |
147 | { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 }, |
148 | { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 }, |
149 | { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 }, |
150 | { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 }, |
151 | { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 }, |
152 | { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 }, |
153 | { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 }, |
154 | { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 }, |
155 | { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 }, |
156 | { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 }, |
157 | { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 }, |
158 | { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 }, |
159 | { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 }, |
160 | { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 }, |
161 | { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 }, |
162 | { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 }, |
163 | { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 }, |
164 | { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 }, |
165 | { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 }, |
166 | |
167 | /* Atheros AR5BBU12 with sflash firmware */ |
168 | { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE }, |
169 | |
170 | /* Atheros AR5BBU12 with sflash firmware */ |
171 | { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 }, |
172 | { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 }, |
173 | |
174 | /* Broadcom BCM2035 */ |
175 | { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU }, |
176 | { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU }, |
177 | { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 }, |
178 | |
179 | /* Broadcom BCM2045 */ |
180 | { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU }, |
181 | { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU }, |
182 | |
183 | /* IBM/Lenovo ThinkPad with Broadcom chip */ |
184 | { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU }, |
185 | { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU }, |
186 | |
187 | /* HP laptop with Broadcom chip */ |
188 | { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU }, |
189 | |
190 | /* Dell laptop with Broadcom chip */ |
191 | { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU }, |
192 | |
193 | /* Dell Wireless 370 and 410 devices */ |
194 | { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU }, |
195 | { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU }, |
196 | |
197 | /* Belkin F8T012 and F8T013 devices */ |
198 | { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU }, |
199 | { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU }, |
200 | |
201 | /* Asus WL-BTD202 device */ |
202 | { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU }, |
203 | |
204 | /* Kensington Bluetooth USB adapter */ |
205 | { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU }, |
206 | |
207 | /* RTX Telecom based adapters with buggy SCO support */ |
208 | { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC }, |
209 | { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC }, |
210 | |
211 | /* CONWISE Technology based adapters with buggy SCO support */ |
212 | { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC }, |
213 | |
214 | /* Digianswer devices */ |
215 | { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER }, |
216 | { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE }, |
217 | |
218 | /* CSR BlueCore Bluetooth Sniffer */ |
219 | { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER }, |
220 | |
221 | /* Frontline ComProbe Bluetooth Sniffer */ |
222 | { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER }, |
223 | |
224 | /* Intel Bluetooth device */ |
225 | { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL }, |
226 | |
227 | { } /* Terminating entry */ |
228 | }; |
229 | |
230 | #define BTUSB_MAX_ISOC_FRAMES 10 |
231 | |
232 | #define BTUSB_INTR_RUNNING 0 |
233 | #define BTUSB_BULK_RUNNING 1 |
234 | #define BTUSB_ISOC_RUNNING 2 |
235 | #define BTUSB_SUSPENDING 3 |
236 | #define BTUSB_DID_ISO_RESUME 4 |
237 | |
238 | struct btusb_data { |
239 | struct hci_dev *hdev; |
240 | struct usb_device *udev; |
241 | struct usb_interface *intf; |
242 | struct usb_interface *isoc; |
243 | |
244 | spinlock_t lock; |
245 | |
246 | unsigned long flags; |
247 | |
248 | struct work_struct work; |
249 | struct work_struct waker; |
250 | |
251 | struct usb_anchor tx_anchor; |
252 | struct usb_anchor intr_anchor; |
253 | struct usb_anchor bulk_anchor; |
254 | struct usb_anchor isoc_anchor; |
255 | struct usb_anchor deferred; |
256 | int tx_in_flight; |
257 | spinlock_t txlock; |
258 | |
259 | struct usb_endpoint_descriptor *intr_ep; |
260 | struct usb_endpoint_descriptor *bulk_tx_ep; |
261 | struct usb_endpoint_descriptor *bulk_rx_ep; |
262 | struct usb_endpoint_descriptor *isoc_tx_ep; |
263 | struct usb_endpoint_descriptor *isoc_rx_ep; |
264 | |
265 | __u8 cmdreq_type; |
266 | |
267 | unsigned int sco_num; |
268 | int isoc_altsetting; |
269 | int suspend_count; |
270 | }; |
271 | |
272 | static int inc_tx(struct btusb_data *data) |
273 | { |
274 | unsigned long flags; |
275 | int rv; |
276 | |
277 | spin_lock_irqsave(&data->txlock, flags); |
278 | rv = test_bit(BTUSB_SUSPENDING, &data->flags); |
279 | if (!rv) |
280 | data->tx_in_flight++; |
281 | spin_unlock_irqrestore(&data->txlock, flags); |
282 | |
283 | return rv; |
284 | } |
285 | |
286 | static void btusb_intr_complete(struct urb *urb) |
287 | { |
288 | struct hci_dev *hdev = urb->context; |
289 | struct btusb_data *data = hci_get_drvdata(hdev); |
290 | int err; |
291 | |
292 | BT_DBG("%s urb %p status %d count %d", hdev->name, |
293 | urb, urb->status, urb->actual_length); |
294 | |
295 | if (!test_bit(HCI_RUNNING, &hdev->flags)) |
296 | return; |
297 | |
298 | if (urb->status == 0) { |
299 | hdev->stat.byte_rx += urb->actual_length; |
300 | |
301 | if (hci_recv_fragment(hdev, HCI_EVENT_PKT, |
302 | urb->transfer_buffer, |
303 | urb->actual_length) < 0) { |
304 | BT_ERR("%s corrupted event packet", hdev->name); |
305 | hdev->stat.err_rx++; |
306 | } |
307 | } |
308 | |
309 | if (!test_bit(BTUSB_INTR_RUNNING, &data->flags)) |
310 | return; |
311 | |
312 | usb_mark_last_busy(data->udev); |
313 | usb_anchor_urb(urb, &data->intr_anchor); |
314 | |
315 | err = usb_submit_urb(urb, GFP_ATOMIC); |
316 | if (err < 0) { |
317 | /* -EPERM: urb is being killed; |
318 | * -ENODEV: device got disconnected */ |
319 | if (err != -EPERM && err != -ENODEV) |
320 | BT_ERR("%s urb %p failed to resubmit (%d)", |
321 | hdev->name, urb, -err); |
322 | usb_unanchor_urb(urb); |
323 | } |
324 | } |
325 | |
326 | static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags) |
327 | { |
328 | struct btusb_data *data = hci_get_drvdata(hdev); |
329 | struct urb *urb; |
330 | unsigned char *buf; |
331 | unsigned int pipe; |
332 | int err, size; |
333 | |
334 | BT_DBG("%s", hdev->name); |
335 | |
336 | if (!data->intr_ep) |
337 | return -ENODEV; |
338 | |
339 | urb = usb_alloc_urb(0, mem_flags); |
340 | if (!urb) |
341 | return -ENOMEM; |
342 | |
343 | size = le16_to_cpu(data->intr_ep->wMaxPacketSize); |
344 | |
345 | buf = kmalloc(size, mem_flags); |
346 | if (!buf) { |
347 | usb_free_urb(urb); |
348 | return -ENOMEM; |
349 | } |
350 | |
351 | pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress); |
352 | |
353 | usb_fill_int_urb(urb, data->udev, pipe, buf, size, |
354 | btusb_intr_complete, hdev, |
355 | data->intr_ep->bInterval); |
356 | |
357 | urb->transfer_flags |= URB_FREE_BUFFER; |
358 | |
359 | usb_anchor_urb(urb, &data->intr_anchor); |
360 | |
361 | err = usb_submit_urb(urb, mem_flags); |
362 | if (err < 0) { |
363 | if (err != -EPERM && err != -ENODEV) |
364 | BT_ERR("%s urb %p submission failed (%d)", |
365 | hdev->name, urb, -err); |
366 | usb_unanchor_urb(urb); |
367 | } |
368 | |
369 | usb_free_urb(urb); |
370 | |
371 | return err; |
372 | } |
373 | |
374 | static void btusb_bulk_complete(struct urb *urb) |
375 | { |
376 | struct hci_dev *hdev = urb->context; |
377 | struct btusb_data *data = hci_get_drvdata(hdev); |
378 | int err; |
379 | |
380 | BT_DBG("%s urb %p status %d count %d", hdev->name, |
381 | urb, urb->status, urb->actual_length); |
382 | |
383 | if (!test_bit(HCI_RUNNING, &hdev->flags)) |
384 | return; |
385 | |
386 | if (urb->status == 0) { |
387 | hdev->stat.byte_rx += urb->actual_length; |
388 | |
389 | if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT, |
390 | urb->transfer_buffer, |
391 | urb->actual_length) < 0) { |
392 | BT_ERR("%s corrupted ACL packet", hdev->name); |
393 | hdev->stat.err_rx++; |
394 | } |
395 | } |
396 | |
397 | if (!test_bit(BTUSB_BULK_RUNNING, &data->flags)) |
398 | return; |
399 | |
400 | usb_anchor_urb(urb, &data->bulk_anchor); |
401 | usb_mark_last_busy(data->udev); |
402 | |
403 | err = usb_submit_urb(urb, GFP_ATOMIC); |
404 | if (err < 0) { |
405 | /* -EPERM: urb is being killed; |
406 | * -ENODEV: device got disconnected */ |
407 | if (err != -EPERM && err != -ENODEV) |
408 | BT_ERR("%s urb %p failed to resubmit (%d)", |
409 | hdev->name, urb, -err); |
410 | usb_unanchor_urb(urb); |
411 | } |
412 | } |
413 | |
414 | static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags) |
415 | { |
416 | struct btusb_data *data = hci_get_drvdata(hdev); |
417 | struct urb *urb; |
418 | unsigned char *buf; |
419 | unsigned int pipe; |
420 | int err, size = HCI_MAX_FRAME_SIZE; |
421 | |
422 | BT_DBG("%s", hdev->name); |
423 | |
424 | if (!data->bulk_rx_ep) |
425 | return -ENODEV; |
426 | |
427 | urb = usb_alloc_urb(0, mem_flags); |
428 | if (!urb) |
429 | return -ENOMEM; |
430 | |
431 | buf = kmalloc(size, mem_flags); |
432 | if (!buf) { |
433 | usb_free_urb(urb); |
434 | return -ENOMEM; |
435 | } |
436 | |
437 | pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress); |
438 | |
439 | usb_fill_bulk_urb(urb, data->udev, pipe, |
440 | buf, size, btusb_bulk_complete, hdev); |
441 | |
442 | urb->transfer_flags |= URB_FREE_BUFFER; |
443 | |
444 | usb_mark_last_busy(data->udev); |
445 | usb_anchor_urb(urb, &data->bulk_anchor); |
446 | |
447 | err = usb_submit_urb(urb, mem_flags); |
448 | if (err < 0) { |
449 | if (err != -EPERM && err != -ENODEV) |
450 | BT_ERR("%s urb %p submission failed (%d)", |
451 | hdev->name, urb, -err); |
452 | usb_unanchor_urb(urb); |
453 | } |
454 | |
455 | usb_free_urb(urb); |
456 | |
457 | return err; |
458 | } |
459 | |
460 | static void btusb_isoc_complete(struct urb *urb) |
461 | { |
462 | struct hci_dev *hdev = urb->context; |
463 | struct btusb_data *data = hci_get_drvdata(hdev); |
464 | int i, err; |
465 | |
466 | BT_DBG("%s urb %p status %d count %d", hdev->name, |
467 | urb, urb->status, urb->actual_length); |
468 | |
469 | if (!test_bit(HCI_RUNNING, &hdev->flags)) |
470 | return; |
471 | |
472 | if (urb->status == 0) { |
473 | for (i = 0; i < urb->number_of_packets; i++) { |
474 | unsigned int offset = urb->iso_frame_desc[i].offset; |
475 | unsigned int length = urb->iso_frame_desc[i].actual_length; |
476 | |
477 | if (urb->iso_frame_desc[i].status) |
478 | continue; |
479 | |
480 | hdev->stat.byte_rx += length; |
481 | |
482 | if (hci_recv_fragment(hdev, HCI_SCODATA_PKT, |
483 | urb->transfer_buffer + offset, |
484 | length) < 0) { |
485 | BT_ERR("%s corrupted SCO packet", hdev->name); |
486 | hdev->stat.err_rx++; |
487 | } |
488 | } |
489 | } |
490 | |
491 | if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags)) |
492 | return; |
493 | |
494 | usb_anchor_urb(urb, &data->isoc_anchor); |
495 | |
496 | err = usb_submit_urb(urb, GFP_ATOMIC); |
497 | if (err < 0) { |
498 | /* -EPERM: urb is being killed; |
499 | * -ENODEV: device got disconnected */ |
500 | if (err != -EPERM && err != -ENODEV) |
501 | BT_ERR("%s urb %p failed to resubmit (%d)", |
502 | hdev->name, urb, -err); |
503 | usb_unanchor_urb(urb); |
504 | } |
505 | } |
506 | |
507 | static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu) |
508 | { |
509 | int i, offset = 0; |
510 | |
511 | BT_DBG("len %d mtu %d", len, mtu); |
512 | |
513 | for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu; |
514 | i++, offset += mtu, len -= mtu) { |
515 | urb->iso_frame_desc[i].offset = offset; |
516 | urb->iso_frame_desc[i].length = mtu; |
517 | } |
518 | |
519 | if (len && i < BTUSB_MAX_ISOC_FRAMES) { |
520 | urb->iso_frame_desc[i].offset = offset; |
521 | urb->iso_frame_desc[i].length = len; |
522 | i++; |
523 | } |
524 | |
525 | urb->number_of_packets = i; |
526 | } |
527 | |
528 | static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags) |
529 | { |
530 | struct btusb_data *data = hci_get_drvdata(hdev); |
531 | struct urb *urb; |
532 | unsigned char *buf; |
533 | unsigned int pipe; |
534 | int err, size; |
535 | |
536 | BT_DBG("%s", hdev->name); |
537 | |
538 | if (!data->isoc_rx_ep) |
539 | return -ENODEV; |
540 | |
541 | urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags); |
542 | if (!urb) |
543 | return -ENOMEM; |
544 | |
545 | size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) * |
546 | BTUSB_MAX_ISOC_FRAMES; |
547 | |
548 | buf = kmalloc(size, mem_flags); |
549 | if (!buf) { |
550 | usb_free_urb(urb); |
551 | return -ENOMEM; |
552 | } |
553 | |
554 | pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress); |
555 | |
556 | usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete, |
557 | hdev, data->isoc_rx_ep->bInterval); |
558 | |
559 | urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP; |
560 | |
561 | __fill_isoc_descriptor(urb, size, |
562 | le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize)); |
563 | |
564 | usb_anchor_urb(urb, &data->isoc_anchor); |
565 | |
566 | err = usb_submit_urb(urb, mem_flags); |
567 | if (err < 0) { |
568 | if (err != -EPERM && err != -ENODEV) |
569 | BT_ERR("%s urb %p submission failed (%d)", |
570 | hdev->name, urb, -err); |
571 | usb_unanchor_urb(urb); |
572 | } |
573 | |
574 | usb_free_urb(urb); |
575 | |
576 | return err; |
577 | } |
578 | |
579 | static void btusb_tx_complete(struct urb *urb) |
580 | { |
581 | struct sk_buff *skb = urb->context; |
582 | struct hci_dev *hdev = (struct hci_dev *) skb->dev; |
583 | struct btusb_data *data = hci_get_drvdata(hdev); |
584 | |
585 | BT_DBG("%s urb %p status %d count %d", hdev->name, |
586 | urb, urb->status, urb->actual_length); |
587 | |
588 | if (!test_bit(HCI_RUNNING, &hdev->flags)) |
589 | goto done; |
590 | |
591 | if (!urb->status) |
592 | hdev->stat.byte_tx += urb->transfer_buffer_length; |
593 | else |
594 | hdev->stat.err_tx++; |
595 | |
596 | done: |
597 | spin_lock(&data->txlock); |
598 | data->tx_in_flight--; |
599 | spin_unlock(&data->txlock); |
600 | |
601 | kfree(urb->setup_packet); |
602 | |
603 | kfree_skb(skb); |
604 | } |
605 | |
606 | static void btusb_isoc_tx_complete(struct urb *urb) |
607 | { |
608 | struct sk_buff *skb = urb->context; |
609 | struct hci_dev *hdev = (struct hci_dev *) skb->dev; |
610 | |
611 | BT_DBG("%s urb %p status %d count %d", hdev->name, |
612 | urb, urb->status, urb->actual_length); |
613 | |
614 | if (!test_bit(HCI_RUNNING, &hdev->flags)) |
615 | goto done; |
616 | |
617 | if (!urb->status) |
618 | hdev->stat.byte_tx += urb->transfer_buffer_length; |
619 | else |
620 | hdev->stat.err_tx++; |
621 | |
622 | done: |
623 | kfree(urb->setup_packet); |
624 | |
625 | kfree_skb(skb); |
626 | } |
627 | |
628 | static int btusb_open(struct hci_dev *hdev) |
629 | { |
630 | struct btusb_data *data = hci_get_drvdata(hdev); |
631 | int err; |
632 | |
633 | BT_DBG("%s", hdev->name); |
634 | |
635 | err = usb_autopm_get_interface(data->intf); |
636 | if (err < 0) |
637 | return err; |
638 | |
639 | data->intf->needs_remote_wakeup = 1; |
640 | |
641 | if (test_and_set_bit(HCI_RUNNING, &hdev->flags)) |
642 | goto done; |
643 | |
644 | if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags)) |
645 | goto done; |
646 | |
647 | err = btusb_submit_intr_urb(hdev, GFP_KERNEL); |
648 | if (err < 0) |
649 | goto failed; |
650 | |
651 | err = btusb_submit_bulk_urb(hdev, GFP_KERNEL); |
652 | if (err < 0) { |
653 | usb_kill_anchored_urbs(&data->intr_anchor); |
654 | goto failed; |
655 | } |
656 | |
657 | set_bit(BTUSB_BULK_RUNNING, &data->flags); |
658 | btusb_submit_bulk_urb(hdev, GFP_KERNEL); |
659 | |
660 | done: |
661 | usb_autopm_put_interface(data->intf); |
662 | return 0; |
663 | |
664 | failed: |
665 | clear_bit(BTUSB_INTR_RUNNING, &data->flags); |
666 | clear_bit(HCI_RUNNING, &hdev->flags); |
667 | usb_autopm_put_interface(data->intf); |
668 | return err; |
669 | } |
670 | |
671 | static void btusb_stop_traffic(struct btusb_data *data) |
672 | { |
673 | usb_kill_anchored_urbs(&data->intr_anchor); |
674 | usb_kill_anchored_urbs(&data->bulk_anchor); |
675 | usb_kill_anchored_urbs(&data->isoc_anchor); |
676 | } |
677 | |
678 | static int btusb_close(struct hci_dev *hdev) |
679 | { |
680 | struct btusb_data *data = hci_get_drvdata(hdev); |
681 | int err; |
682 | |
683 | BT_DBG("%s", hdev->name); |
684 | |
685 | if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags)) |
686 | return 0; |
687 | |
688 | cancel_work_sync(&data->work); |
689 | cancel_work_sync(&data->waker); |
690 | |
691 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); |
692 | clear_bit(BTUSB_BULK_RUNNING, &data->flags); |
693 | clear_bit(BTUSB_INTR_RUNNING, &data->flags); |
694 | |
695 | btusb_stop_traffic(data); |
696 | err = usb_autopm_get_interface(data->intf); |
697 | if (err < 0) |
698 | goto failed; |
699 | |
700 | data->intf->needs_remote_wakeup = 0; |
701 | usb_autopm_put_interface(data->intf); |
702 | |
703 | failed: |
704 | usb_scuttle_anchored_urbs(&data->deferred); |
705 | return 0; |
706 | } |
707 | |
708 | static int btusb_flush(struct hci_dev *hdev) |
709 | { |
710 | struct btusb_data *data = hci_get_drvdata(hdev); |
711 | |
712 | BT_DBG("%s", hdev->name); |
713 | |
714 | usb_kill_anchored_urbs(&data->tx_anchor); |
715 | |
716 | return 0; |
717 | } |
718 | |
719 | static int btusb_send_frame(struct sk_buff *skb) |
720 | { |
721 | struct hci_dev *hdev = (struct hci_dev *) skb->dev; |
722 | struct btusb_data *data = hci_get_drvdata(hdev); |
723 | struct usb_ctrlrequest *dr; |
724 | struct urb *urb; |
725 | unsigned int pipe; |
726 | int err; |
727 | |
728 | BT_DBG("%s", hdev->name); |
729 | |
730 | if (!test_bit(HCI_RUNNING, &hdev->flags)) |
731 | return -EBUSY; |
732 | |
733 | switch (bt_cb(skb)->pkt_type) { |
734 | case HCI_COMMAND_PKT: |
735 | urb = usb_alloc_urb(0, GFP_ATOMIC); |
736 | if (!urb) |
737 | return -ENOMEM; |
738 | |
739 | dr = kmalloc(sizeof(*dr), GFP_ATOMIC); |
740 | if (!dr) { |
741 | usb_free_urb(urb); |
742 | return -ENOMEM; |
743 | } |
744 | |
745 | dr->bRequestType = data->cmdreq_type; |
746 | dr->bRequest = 0; |
747 | dr->wIndex = 0; |
748 | dr->wValue = 0; |
749 | dr->wLength = __cpu_to_le16(skb->len); |
750 | |
751 | pipe = usb_sndctrlpipe(data->udev, 0x00); |
752 | |
753 | usb_fill_control_urb(urb, data->udev, pipe, (void *) dr, |
754 | skb->data, skb->len, btusb_tx_complete, skb); |
755 | |
756 | hdev->stat.cmd_tx++; |
757 | break; |
758 | |
759 | case HCI_ACLDATA_PKT: |
760 | if (!data->bulk_tx_ep) |
761 | return -ENODEV; |
762 | |
763 | urb = usb_alloc_urb(0, GFP_ATOMIC); |
764 | if (!urb) |
765 | return -ENOMEM; |
766 | |
767 | pipe = usb_sndbulkpipe(data->udev, |
768 | data->bulk_tx_ep->bEndpointAddress); |
769 | |
770 | usb_fill_bulk_urb(urb, data->udev, pipe, |
771 | skb->data, skb->len, btusb_tx_complete, skb); |
772 | |
773 | hdev->stat.acl_tx++; |
774 | break; |
775 | |
776 | case HCI_SCODATA_PKT: |
777 | if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1) |
778 | return -ENODEV; |
779 | |
780 | urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC); |
781 | if (!urb) |
782 | return -ENOMEM; |
783 | |
784 | pipe = usb_sndisocpipe(data->udev, |
785 | data->isoc_tx_ep->bEndpointAddress); |
786 | |
787 | usb_fill_int_urb(urb, data->udev, pipe, |
788 | skb->data, skb->len, btusb_isoc_tx_complete, |
789 | skb, data->isoc_tx_ep->bInterval); |
790 | |
791 | urb->transfer_flags = URB_ISO_ASAP; |
792 | |
793 | __fill_isoc_descriptor(urb, skb->len, |
794 | le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize)); |
795 | |
796 | hdev->stat.sco_tx++; |
797 | goto skip_waking; |
798 | |
799 | default: |
800 | return -EILSEQ; |
801 | } |
802 | |
803 | err = inc_tx(data); |
804 | if (err) { |
805 | usb_anchor_urb(urb, &data->deferred); |
806 | schedule_work(&data->waker); |
807 | err = 0; |
808 | goto done; |
809 | } |
810 | |
811 | skip_waking: |
812 | usb_anchor_urb(urb, &data->tx_anchor); |
813 | |
814 | err = usb_submit_urb(urb, GFP_ATOMIC); |
815 | if (err < 0) { |
816 | if (err != -EPERM && err != -ENODEV) |
817 | BT_ERR("%s urb %p submission failed (%d)", |
818 | hdev->name, urb, -err); |
819 | kfree(urb->setup_packet); |
820 | usb_unanchor_urb(urb); |
821 | } else { |
822 | usb_mark_last_busy(data->udev); |
823 | } |
824 | |
825 | done: |
826 | usb_free_urb(urb); |
827 | return err; |
828 | } |
829 | |
830 | static void btusb_notify(struct hci_dev *hdev, unsigned int evt) |
831 | { |
832 | struct btusb_data *data = hci_get_drvdata(hdev); |
833 | |
834 | BT_DBG("%s evt %d", hdev->name, evt); |
835 | |
836 | if (hdev->conn_hash.sco_num != data->sco_num) { |
837 | data->sco_num = hdev->conn_hash.sco_num; |
838 | schedule_work(&data->work); |
839 | } |
840 | } |
841 | |
842 | static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting) |
843 | { |
844 | struct btusb_data *data = hci_get_drvdata(hdev); |
845 | struct usb_interface *intf = data->isoc; |
846 | struct usb_endpoint_descriptor *ep_desc; |
847 | int i, err; |
848 | |
849 | if (!data->isoc) |
850 | return -ENODEV; |
851 | |
852 | err = usb_set_interface(data->udev, 1, altsetting); |
853 | if (err < 0) { |
854 | BT_ERR("%s setting interface failed (%d)", hdev->name, -err); |
855 | return err; |
856 | } |
857 | |
858 | data->isoc_altsetting = altsetting; |
859 | |
860 | data->isoc_tx_ep = NULL; |
861 | data->isoc_rx_ep = NULL; |
862 | |
863 | for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { |
864 | ep_desc = &intf->cur_altsetting->endpoint[i].desc; |
865 | |
866 | if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) { |
867 | data->isoc_tx_ep = ep_desc; |
868 | continue; |
869 | } |
870 | |
871 | if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) { |
872 | data->isoc_rx_ep = ep_desc; |
873 | continue; |
874 | } |
875 | } |
876 | |
877 | if (!data->isoc_tx_ep || !data->isoc_rx_ep) { |
878 | BT_ERR("%s invalid SCO descriptors", hdev->name); |
879 | return -ENODEV; |
880 | } |
881 | |
882 | return 0; |
883 | } |
884 | |
885 | static void btusb_work(struct work_struct *work) |
886 | { |
887 | struct btusb_data *data = container_of(work, struct btusb_data, work); |
888 | struct hci_dev *hdev = data->hdev; |
889 | int new_alts; |
890 | int err; |
891 | |
892 | if (hdev->conn_hash.sco_num > 0) { |
893 | if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) { |
894 | err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf); |
895 | if (err < 0) { |
896 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); |
897 | usb_kill_anchored_urbs(&data->isoc_anchor); |
898 | return; |
899 | } |
900 | |
901 | set_bit(BTUSB_DID_ISO_RESUME, &data->flags); |
902 | } |
903 | |
904 | if (hdev->voice_setting & 0x0020) { |
905 | static const int alts[3] = { 2, 4, 5 }; |
906 | new_alts = alts[hdev->conn_hash.sco_num - 1]; |
907 | } else { |
908 | new_alts = hdev->conn_hash.sco_num; |
909 | } |
910 | |
911 | if (data->isoc_altsetting != new_alts) { |
912 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); |
913 | usb_kill_anchored_urbs(&data->isoc_anchor); |
914 | |
915 | if (__set_isoc_interface(hdev, new_alts) < 0) |
916 | return; |
917 | } |
918 | |
919 | if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) { |
920 | if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0) |
921 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); |
922 | else |
923 | btusb_submit_isoc_urb(hdev, GFP_KERNEL); |
924 | } |
925 | } else { |
926 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); |
927 | usb_kill_anchored_urbs(&data->isoc_anchor); |
928 | |
929 | __set_isoc_interface(hdev, 0); |
930 | if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags)) |
931 | usb_autopm_put_interface(data->isoc ? data->isoc : data->intf); |
932 | } |
933 | } |
934 | |
935 | static void btusb_waker(struct work_struct *work) |
936 | { |
937 | struct btusb_data *data = container_of(work, struct btusb_data, waker); |
938 | int err; |
939 | |
940 | err = usb_autopm_get_interface(data->intf); |
941 | if (err < 0) |
942 | return; |
943 | |
944 | usb_autopm_put_interface(data->intf); |
945 | } |
946 | |
947 | static int btusb_setup_bcm92035(struct hci_dev *hdev) |
948 | { |
949 | struct sk_buff *skb; |
950 | u8 val = 0x00; |
951 | |
952 | BT_DBG("%s", hdev->name); |
953 | |
954 | skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT); |
955 | if (IS_ERR(skb)) |
956 | BT_ERR("BCM92035 command failed (%ld)", -PTR_ERR(skb)); |
957 | else |
958 | kfree_skb(skb); |
959 | |
960 | return 0; |
961 | } |
962 | |
963 | struct intel_version { |
964 | u8 status; |
965 | u8 hw_platform; |
966 | u8 hw_variant; |
967 | u8 hw_revision; |
968 | u8 fw_variant; |
969 | u8 fw_revision; |
970 | u8 fw_build_num; |
971 | u8 fw_build_ww; |
972 | u8 fw_build_yy; |
973 | u8 fw_patch_num; |
974 | } __packed; |
975 | |
976 | static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev, |
977 | struct intel_version *ver) |
978 | { |
979 | const struct firmware *fw; |
980 | char fwname[64]; |
981 | int ret; |
982 | |
983 | snprintf(fwname, sizeof(fwname), |
984 | "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq", |
985 | ver->hw_platform, ver->hw_variant, ver->hw_revision, |
986 | ver->fw_variant, ver->fw_revision, ver->fw_build_num, |
987 | ver->fw_build_ww, ver->fw_build_yy); |
988 | |
989 | ret = request_firmware(&fw, fwname, &hdev->dev); |
990 | if (ret < 0) { |
991 | if (ret == -EINVAL) { |
992 | BT_ERR("%s Intel firmware file request failed (%d)", |
993 | hdev->name, ret); |
994 | return NULL; |
995 | } |
996 | |
997 | BT_ERR("%s failed to open Intel firmware file: %s(%d)", |
998 | hdev->name, fwname, ret); |
999 | |
1000 | /* If the correct firmware patch file is not found, use the |
1001 | * default firmware patch file instead |
1002 | */ |
1003 | snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq", |
1004 | ver->hw_platform, ver->hw_variant); |
1005 | if (request_firmware(&fw, fwname, &hdev->dev) < 0) { |
1006 | BT_ERR("%s failed to open default Intel fw file: %s", |
1007 | hdev->name, fwname); |
1008 | return NULL; |
1009 | } |
1010 | } |
1011 | |
1012 | BT_INFO("%s: Intel Bluetooth firmware file: %s", hdev->name, fwname); |
1013 | |
1014 | return fw; |
1015 | } |
1016 | |
1017 | static int btusb_setup_intel_patching(struct hci_dev *hdev, |
1018 | const struct firmware *fw, |
1019 | const u8 **fw_ptr, int *disable_patch) |
1020 | { |
1021 | struct sk_buff *skb; |
1022 | struct hci_command_hdr *cmd; |
1023 | const u8 *cmd_param; |
1024 | struct hci_event_hdr *evt = NULL; |
1025 | const u8 *evt_param = NULL; |
1026 | int remain = fw->size - (*fw_ptr - fw->data); |
1027 | |
1028 | /* The first byte indicates the types of the patch command or event. |
1029 | * 0x01 means HCI command and 0x02 is HCI event. If the first bytes |
1030 | * in the current firmware buffer doesn't start with 0x01 or |
1031 | * the size of remain buffer is smaller than HCI command header, |
1032 | * the firmware file is corrupted and it should stop the patching |
1033 | * process. |
1034 | */ |
1035 | if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) { |
1036 | BT_ERR("%s Intel fw corrupted: invalid cmd read", hdev->name); |
1037 | return -EINVAL; |
1038 | } |
1039 | (*fw_ptr)++; |
1040 | remain--; |
1041 | |
1042 | cmd = (struct hci_command_hdr *)(*fw_ptr); |
1043 | *fw_ptr += sizeof(*cmd); |
1044 | remain -= sizeof(*cmd); |
1045 | |
1046 | /* Ensure that the remain firmware data is long enough than the length |
1047 | * of command parameter. If not, the firmware file is corrupted. |
1048 | */ |
1049 | if (remain < cmd->plen) { |
1050 | BT_ERR("%s Intel fw corrupted: invalid cmd len", hdev->name); |
1051 | return -EFAULT; |
1052 | } |
1053 | |
1054 | /* If there is a command that loads a patch in the firmware |
1055 | * file, then enable the patch upon success, otherwise just |
1056 | * disable the manufacturer mode, for example patch activation |
1057 | * is not required when the default firmware patch file is used |
1058 | * because there are no patch data to load. |
1059 | */ |
1060 | if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e) |
1061 | *disable_patch = 0; |
1062 | |
1063 | cmd_param = *fw_ptr; |
1064 | *fw_ptr += cmd->plen; |
1065 | remain -= cmd->plen; |
1066 | |
1067 | /* This reads the expected events when the above command is sent to the |
1068 | * device. Some vendor commands expects more than one events, for |
1069 | * example command status event followed by vendor specific event. |
1070 | * For this case, it only keeps the last expected event. so the command |
1071 | * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of |
1072 | * last expected event. |
1073 | */ |
1074 | while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) { |
1075 | (*fw_ptr)++; |
1076 | remain--; |
1077 | |
1078 | evt = (struct hci_event_hdr *)(*fw_ptr); |
1079 | *fw_ptr += sizeof(*evt); |
1080 | remain -= sizeof(*evt); |
1081 | |
1082 | if (remain < evt->plen) { |
1083 | BT_ERR("%s Intel fw corrupted: invalid evt len", |
1084 | hdev->name); |
1085 | return -EFAULT; |
1086 | } |
1087 | |
1088 | evt_param = *fw_ptr; |
1089 | *fw_ptr += evt->plen; |
1090 | remain -= evt->plen; |
1091 | } |
1092 | |
1093 | /* Every HCI commands in the firmware file has its correspond event. |
1094 | * If event is not found or remain is smaller than zero, the firmware |
1095 | * file is corrupted. |
1096 | */ |
1097 | if (!evt || !evt_param || remain < 0) { |
1098 | BT_ERR("%s Intel fw corrupted: invalid evt read", hdev->name); |
1099 | return -EFAULT; |
1100 | } |
1101 | |
1102 | skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen, |
1103 | cmd_param, evt->evt, HCI_INIT_TIMEOUT); |
1104 | if (IS_ERR(skb)) { |
1105 | BT_ERR("%s sending Intel patch command (0x%4.4x) failed (%ld)", |
1106 | hdev->name, cmd->opcode, PTR_ERR(skb)); |
1107 | return PTR_ERR(skb); |
1108 | } |
1109 | |
1110 | /* It ensures that the returned event matches the event data read from |
1111 | * the firmware file. At fist, it checks the length and then |
1112 | * the contents of the event. |
1113 | */ |
1114 | if (skb->len != evt->plen) { |
1115 | BT_ERR("%s mismatch event length (opcode 0x%4.4x)", hdev->name, |
1116 | le16_to_cpu(cmd->opcode)); |
1117 | kfree_skb(skb); |
1118 | return -EFAULT; |
1119 | } |
1120 | |
1121 | if (memcmp(skb->data, evt_param, evt->plen)) { |
1122 | BT_ERR("%s mismatch event parameter (opcode 0x%4.4x)", |
1123 | hdev->name, le16_to_cpu(cmd->opcode)); |
1124 | kfree_skb(skb); |
1125 | return -EFAULT; |
1126 | } |
1127 | kfree_skb(skb); |
1128 | |
1129 | return 0; |
1130 | } |
1131 | |
1132 | static int btusb_setup_intel(struct hci_dev *hdev) |
1133 | { |
1134 | struct sk_buff *skb; |
1135 | const struct firmware *fw; |
1136 | const u8 *fw_ptr; |
1137 | int disable_patch; |
1138 | struct intel_version *ver; |
1139 | |
1140 | const u8 mfg_enable[] = { 0x01, 0x00 }; |
1141 | const u8 mfg_disable[] = { 0x00, 0x00 }; |
1142 | const u8 mfg_reset_deactivate[] = { 0x00, 0x01 }; |
1143 | const u8 mfg_reset_activate[] = { 0x00, 0x02 }; |
1144 | |
1145 | BT_DBG("%s", hdev->name); |
1146 | |
1147 | /* The controller has a bug with the first HCI command sent to it |
1148 | * returning number of completed commands as zero. This would stall the |
1149 | * command processing in the Bluetooth core. |
1150 | * |
1151 | * As a workaround, send HCI Reset command first which will reset the |
1152 | * number of completed commands and allow normal command processing |
1153 | * from now on. |
1154 | */ |
1155 | skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT); |
1156 | if (IS_ERR(skb)) { |
1157 | BT_ERR("%s sending initial HCI reset command failed (%ld)", |
1158 | hdev->name, PTR_ERR(skb)); |
1159 | return PTR_ERR(skb); |
1160 | } |
1161 | kfree_skb(skb); |
1162 | |
1163 | /* Read Intel specific controller version first to allow selection of |
1164 | * which firmware file to load. |
1165 | * |
1166 | * The returned information are hardware variant and revision plus |
1167 | * firmware variant, revision and build number. |
1168 | */ |
1169 | skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT); |
1170 | if (IS_ERR(skb)) { |
1171 | BT_ERR("%s reading Intel fw version command failed (%ld)", |
1172 | hdev->name, PTR_ERR(skb)); |
1173 | return PTR_ERR(skb); |
1174 | } |
1175 | |
1176 | if (skb->len != sizeof(*ver)) { |
1177 | BT_ERR("%s Intel version event length mismatch", hdev->name); |
1178 | kfree_skb(skb); |
1179 | return -EIO; |
1180 | } |
1181 | |
1182 | ver = (struct intel_version *)skb->data; |
1183 | if (ver->status) { |
1184 | BT_ERR("%s Intel fw version event failed (%02x)", hdev->name, |
1185 | ver->status); |
1186 | kfree_skb(skb); |
1187 | return -bt_to_errno(ver->status); |
1188 | } |
1189 | |
1190 | BT_INFO("%s: read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x", |
1191 | hdev->name, ver->hw_platform, ver->hw_variant, |
1192 | ver->hw_revision, ver->fw_variant, ver->fw_revision, |
1193 | ver->fw_build_num, ver->fw_build_ww, ver->fw_build_yy, |
1194 | ver->fw_patch_num); |
1195 | |
1196 | /* fw_patch_num indicates the version of patch the device currently |
1197 | * have. If there is no patch data in the device, it is always 0x00. |
1198 | * So, if it is other than 0x00, no need to patch the deivce again. |
1199 | */ |
1200 | if (ver->fw_patch_num) { |
1201 | BT_INFO("%s: Intel device is already patched. patch num: %02x", |
1202 | hdev->name, ver->fw_patch_num); |
1203 | kfree_skb(skb); |
1204 | return 0; |
1205 | } |
1206 | |
1207 | /* Opens the firmware patch file based on the firmware version read |
1208 | * from the controller. If it fails to open the matching firmware |
1209 | * patch file, it tries to open the default firmware patch file. |
1210 | * If no patch file is found, allow the device to operate without |
1211 | * a patch. |
1212 | */ |
1213 | fw = btusb_setup_intel_get_fw(hdev, ver); |
1214 | if (!fw) { |
1215 | kfree_skb(skb); |
1216 | return 0; |
1217 | } |
1218 | fw_ptr = fw->data; |
1219 | |
1220 | /* This Intel specific command enables the manufacturer mode of the |
1221 | * controller. |
1222 | * |
1223 | * Only while this mode is enabled, the driver can download the |
1224 | * firmware patch data and configuration parameters. |
1225 | */ |
1226 | skb = __hci_cmd_sync(hdev, 0xfc11, 2, mfg_enable, HCI_INIT_TIMEOUT); |
1227 | if (IS_ERR(skb)) { |
1228 | BT_ERR("%s entering Intel manufacturer mode failed (%ld)", |
1229 | hdev->name, PTR_ERR(skb)); |
1230 | release_firmware(fw); |
1231 | return PTR_ERR(skb); |
1232 | } |
1233 | |
1234 | if (skb->data[0]) { |
1235 | u8 evt_status = skb->data[0]; |
1236 | BT_ERR("%s enable Intel manufacturer mode event failed (%02x)", |
1237 | hdev->name, evt_status); |
1238 | kfree_skb(skb); |
1239 | release_firmware(fw); |
1240 | return -bt_to_errno(evt_status); |
1241 | } |
1242 | kfree_skb(skb); |
1243 | |
1244 | disable_patch = 1; |
1245 | |
1246 | /* The firmware data file consists of list of Intel specific HCI |
1247 | * commands and its expected events. The first byte indicates the |
1248 | * type of the message, either HCI command or HCI event. |
1249 | * |
1250 | * It reads the command and its expected event from the firmware file, |
1251 | * and send to the controller. Once __hci_cmd_sync_ev() returns, |
1252 | * the returned event is compared with the event read from the firmware |
1253 | * file and it will continue until all the messages are downloaded to |
1254 | * the controller. |
1255 | * |
1256 | * Once the firmware patching is completed successfully, |
1257 | * the manufacturer mode is disabled with reset and activating the |
1258 | * downloaded patch. |
1259 | * |
1260 | * If the firmware patching fails, the manufacturer mode is |
1261 | * disabled with reset and deactivating the patch. |
1262 | * |
1263 | * If the default patch file is used, no reset is done when disabling |
1264 | * the manufacturer. |
1265 | */ |
1266 | while (fw->size > fw_ptr - fw->data) { |
1267 | int ret; |
1268 | |
1269 | ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr, |
1270 | &disable_patch); |
1271 | if (ret < 0) |
1272 | goto exit_mfg_deactivate; |
1273 | } |
1274 | |
1275 | release_firmware(fw); |
1276 | |
1277 | if (disable_patch) |
1278 | goto exit_mfg_disable; |
1279 | |
1280 | /* Patching completed successfully and disable the manufacturer mode |
1281 | * with reset and activate the downloaded firmware patches. |
1282 | */ |
1283 | skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_activate), |
1284 | mfg_reset_activate, HCI_INIT_TIMEOUT); |
1285 | if (IS_ERR(skb)) { |
1286 | BT_ERR("%s exiting Intel manufacturer mode failed (%ld)", |
1287 | hdev->name, PTR_ERR(skb)); |
1288 | return PTR_ERR(skb); |
1289 | } |
1290 | kfree_skb(skb); |
1291 | |
1292 | BT_INFO("%s: Intel Bluetooth firmware patch completed and activated", |
1293 | hdev->name); |
1294 | |
1295 | return 0; |
1296 | |
1297 | exit_mfg_disable: |
1298 | /* Disable the manufacturer mode without reset */ |
1299 | skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_disable), mfg_disable, |
1300 | HCI_INIT_TIMEOUT); |
1301 | if (IS_ERR(skb)) { |
1302 | BT_ERR("%s exiting Intel manufacturer mode failed (%ld)", |
1303 | hdev->name, PTR_ERR(skb)); |
1304 | return PTR_ERR(skb); |
1305 | } |
1306 | kfree_skb(skb); |
1307 | |
1308 | BT_INFO("%s: Intel Bluetooth firmware patch completed", hdev->name); |
1309 | return 0; |
1310 | |
1311 | exit_mfg_deactivate: |
1312 | release_firmware(fw); |
1313 | |
1314 | /* Patching failed. Disable the manufacturer mode with reset and |
1315 | * deactivate the downloaded firmware patches. |
1316 | */ |
1317 | skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_deactivate), |
1318 | mfg_reset_deactivate, HCI_INIT_TIMEOUT); |
1319 | if (IS_ERR(skb)) { |
1320 | BT_ERR("%s exiting Intel manufacturer mode failed (%ld)", |
1321 | hdev->name, PTR_ERR(skb)); |
1322 | return PTR_ERR(skb); |
1323 | } |
1324 | kfree_skb(skb); |
1325 | |
1326 | BT_INFO("%s: Intel Bluetooth firmware patch completed and deactivated", |
1327 | hdev->name); |
1328 | |
1329 | return 0; |
1330 | } |
1331 | |
1332 | static int btusb_probe(struct usb_interface *intf, |
1333 | const struct usb_device_id *id) |
1334 | { |
1335 | struct usb_endpoint_descriptor *ep_desc; |
1336 | struct btusb_data *data; |
1337 | struct hci_dev *hdev; |
1338 | int i, err; |
1339 | |
1340 | BT_DBG("intf %p id %p", intf, id); |
1341 | |
1342 | /* interface numbers are hardcoded in the spec */ |
1343 | if (intf->cur_altsetting->desc.bInterfaceNumber != 0) |
1344 | return -ENODEV; |
1345 | |
1346 | if (!id->driver_info) { |
1347 | const struct usb_device_id *match; |
1348 | match = usb_match_id(intf, blacklist_table); |
1349 | if (match) |
1350 | id = match; |
1351 | } |
1352 | |
1353 | if (id->driver_info == BTUSB_IGNORE) |
1354 | return -ENODEV; |
1355 | |
1356 | if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER) |
1357 | return -ENODEV; |
1358 | |
1359 | if (ignore_csr && id->driver_info & BTUSB_CSR) |
1360 | return -ENODEV; |
1361 | |
1362 | if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER) |
1363 | return -ENODEV; |
1364 | |
1365 | if (id->driver_info & BTUSB_ATH3012) { |
1366 | struct usb_device *udev = interface_to_usbdev(intf); |
1367 | |
1368 | /* Old firmware would otherwise let ath3k driver load |
1369 | * patch and sysconfig files */ |
1370 | if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001) |
1371 | return -ENODEV; |
1372 | } |
1373 | |
1374 | data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL); |
1375 | if (!data) |
1376 | return -ENOMEM; |
1377 | |
1378 | for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { |
1379 | ep_desc = &intf->cur_altsetting->endpoint[i].desc; |
1380 | |
1381 | if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) { |
1382 | data->intr_ep = ep_desc; |
1383 | continue; |
1384 | } |
1385 | |
1386 | if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { |
1387 | data->bulk_tx_ep = ep_desc; |
1388 | continue; |
1389 | } |
1390 | |
1391 | if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { |
1392 | data->bulk_rx_ep = ep_desc; |
1393 | continue; |
1394 | } |
1395 | } |
1396 | |
1397 | if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) |
1398 | return -ENODEV; |
1399 | |
1400 | data->cmdreq_type = USB_TYPE_CLASS; |
1401 | |
1402 | data->udev = interface_to_usbdev(intf); |
1403 | data->intf = intf; |
1404 | |
1405 | spin_lock_init(&data->lock); |
1406 | |
1407 | INIT_WORK(&data->work, btusb_work); |
1408 | INIT_WORK(&data->waker, btusb_waker); |
1409 | spin_lock_init(&data->txlock); |
1410 | |
1411 | init_usb_anchor(&data->tx_anchor); |
1412 | init_usb_anchor(&data->intr_anchor); |
1413 | init_usb_anchor(&data->bulk_anchor); |
1414 | init_usb_anchor(&data->isoc_anchor); |
1415 | init_usb_anchor(&data->deferred); |
1416 | |
1417 | hdev = hci_alloc_dev(); |
1418 | if (!hdev) |
1419 | return -ENOMEM; |
1420 | |
1421 | hdev->bus = HCI_USB; |
1422 | hci_set_drvdata(hdev, data); |
1423 | |
1424 | data->hdev = hdev; |
1425 | |
1426 | SET_HCIDEV_DEV(hdev, &intf->dev); |
1427 | |
1428 | hdev->open = btusb_open; |
1429 | hdev->close = btusb_close; |
1430 | hdev->flush = btusb_flush; |
1431 | hdev->send = btusb_send_frame; |
1432 | hdev->notify = btusb_notify; |
1433 | |
1434 | if (id->driver_info & BTUSB_BCM92035) |
1435 | hdev->setup = btusb_setup_bcm92035; |
1436 | |
1437 | if (id->driver_info & BTUSB_INTEL) |
1438 | hdev->setup = btusb_setup_intel; |
1439 | |
1440 | /* Interface numbers are hardcoded in the specification */ |
1441 | data->isoc = usb_ifnum_to_if(data->udev, 1); |
1442 | |
1443 | if (!reset) |
1444 | set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); |
1445 | |
1446 | if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) { |
1447 | if (!disable_scofix) |
1448 | set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks); |
1449 | } |
1450 | |
1451 | if (id->driver_info & BTUSB_BROKEN_ISOC) |
1452 | data->isoc = NULL; |
1453 | |
1454 | if (id->driver_info & BTUSB_DIGIANSWER) { |
1455 | data->cmdreq_type = USB_TYPE_VENDOR; |
1456 | set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); |
1457 | } |
1458 | |
1459 | if (id->driver_info & BTUSB_CSR) { |
1460 | struct usb_device *udev = data->udev; |
1461 | |
1462 | /* Old firmware would otherwise execute USB reset */ |
1463 | if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117) |
1464 | set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); |
1465 | } |
1466 | |
1467 | if (id->driver_info & BTUSB_SNIFFER) { |
1468 | struct usb_device *udev = data->udev; |
1469 | |
1470 | /* New sniffer firmware has crippled HCI interface */ |
1471 | if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997) |
1472 | set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); |
1473 | |
1474 | data->isoc = NULL; |
1475 | } |
1476 | |
1477 | if (data->isoc) { |
1478 | err = usb_driver_claim_interface(&btusb_driver, |
1479 | data->isoc, data); |
1480 | if (err < 0) { |
1481 | hci_free_dev(hdev); |
1482 | return err; |
1483 | } |
1484 | } |
1485 | |
1486 | err = hci_register_dev(hdev); |
1487 | if (err < 0) { |
1488 | hci_free_dev(hdev); |
1489 | return err; |
1490 | } |
1491 | |
1492 | usb_set_intfdata(intf, data); |
1493 | |
1494 | return 0; |
1495 | } |
1496 | |
1497 | static void btusb_disconnect(struct usb_interface *intf) |
1498 | { |
1499 | struct btusb_data *data = usb_get_intfdata(intf); |
1500 | struct hci_dev *hdev; |
1501 | |
1502 | BT_DBG("intf %p", intf); |
1503 | |
1504 | if (!data) |
1505 | return; |
1506 | |
1507 | hdev = data->hdev; |
1508 | usb_set_intfdata(data->intf, NULL); |
1509 | |
1510 | if (data->isoc) |
1511 | usb_set_intfdata(data->isoc, NULL); |
1512 | |
1513 | hci_unregister_dev(hdev); |
1514 | |
1515 | if (intf == data->isoc) |
1516 | usb_driver_release_interface(&btusb_driver, data->intf); |
1517 | else if (data->isoc) |
1518 | usb_driver_release_interface(&btusb_driver, data->isoc); |
1519 | |
1520 | hci_free_dev(hdev); |
1521 | } |
1522 | |
1523 | #ifdef CONFIG_PM |
1524 | static int btusb_suspend(struct usb_interface *intf, pm_message_t message) |
1525 | { |
1526 | struct btusb_data *data = usb_get_intfdata(intf); |
1527 | |
1528 | BT_DBG("intf %p", intf); |
1529 | |
1530 | if (data->suspend_count++) |
1531 | return 0; |
1532 | |
1533 | spin_lock_irq(&data->txlock); |
1534 | if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) { |
1535 | set_bit(BTUSB_SUSPENDING, &data->flags); |
1536 | spin_unlock_irq(&data->txlock); |
1537 | } else { |
1538 | spin_unlock_irq(&data->txlock); |
1539 | data->suspend_count--; |
1540 | return -EBUSY; |
1541 | } |
1542 | |
1543 | cancel_work_sync(&data->work); |
1544 | |
1545 | btusb_stop_traffic(data); |
1546 | usb_kill_anchored_urbs(&data->tx_anchor); |
1547 | |
1548 | return 0; |
1549 | } |
1550 | |
1551 | static void play_deferred(struct btusb_data *data) |
1552 | { |
1553 | struct urb *urb; |
1554 | int err; |
1555 | |
1556 | while ((urb = usb_get_from_anchor(&data->deferred))) { |
1557 | err = usb_submit_urb(urb, GFP_ATOMIC); |
1558 | if (err < 0) |
1559 | break; |
1560 | |
1561 | data->tx_in_flight++; |
1562 | } |
1563 | usb_scuttle_anchored_urbs(&data->deferred); |
1564 | } |
1565 | |
1566 | static int btusb_resume(struct usb_interface *intf) |
1567 | { |
1568 | struct btusb_data *data = usb_get_intfdata(intf); |
1569 | struct hci_dev *hdev = data->hdev; |
1570 | int err = 0; |
1571 | |
1572 | BT_DBG("intf %p", intf); |
1573 | |
1574 | if (--data->suspend_count) |
1575 | return 0; |
1576 | |
1577 | if (!test_bit(HCI_RUNNING, &hdev->flags)) |
1578 | goto done; |
1579 | |
1580 | if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) { |
1581 | err = btusb_submit_intr_urb(hdev, GFP_NOIO); |
1582 | if (err < 0) { |
1583 | clear_bit(BTUSB_INTR_RUNNING, &data->flags); |
1584 | goto failed; |
1585 | } |
1586 | } |
1587 | |
1588 | if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) { |
1589 | err = btusb_submit_bulk_urb(hdev, GFP_NOIO); |
1590 | if (err < 0) { |
1591 | clear_bit(BTUSB_BULK_RUNNING, &data->flags); |
1592 | goto failed; |
1593 | } |
1594 | |
1595 | btusb_submit_bulk_urb(hdev, GFP_NOIO); |
1596 | } |
1597 | |
1598 | if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) { |
1599 | if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0) |
1600 | clear_bit(BTUSB_ISOC_RUNNING, &data->flags); |
1601 | else |
1602 | btusb_submit_isoc_urb(hdev, GFP_NOIO); |
1603 | } |
1604 | |
1605 | spin_lock_irq(&data->txlock); |
1606 | play_deferred(data); |
1607 | clear_bit(BTUSB_SUSPENDING, &data->flags); |
1608 | spin_unlock_irq(&data->txlock); |
1609 | schedule_work(&data->work); |
1610 | |
1611 | return 0; |
1612 | |
1613 | failed: |
1614 | usb_scuttle_anchored_urbs(&data->deferred); |
1615 | done: |
1616 | spin_lock_irq(&data->txlock); |
1617 | clear_bit(BTUSB_SUSPENDING, &data->flags); |
1618 | spin_unlock_irq(&data->txlock); |
1619 | |
1620 | return err; |
1621 | } |
1622 | #endif |
1623 | |
1624 | static struct usb_driver btusb_driver = { |
1625 | .name = "btusb", |
1626 | .probe = btusb_probe, |
1627 | .disconnect = btusb_disconnect, |
1628 | #ifdef CONFIG_PM |
1629 | .suspend = btusb_suspend, |
1630 | .resume = btusb_resume, |
1631 | .reset_resume = btusb_resume, |
1632 | #endif |
1633 | .id_table = btusb_table, |
1634 | .supports_autosuspend = 1, |
1635 | .disable_hub_initiated_lpm = 1, |
1636 | }; |
1637 | |
1638 | module_usb_driver(btusb_driver); |
1639 | |
1640 | module_param(ignore_dga, bool, 0644); |
1641 | MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001"); |
1642 | |
1643 | module_param(ignore_csr, bool, 0644); |
1644 | MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001"); |
1645 | |
1646 | module_param(ignore_sniffer, bool, 0644); |
1647 | MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002"); |
1648 | |
1649 | module_param(disable_scofix, bool, 0644); |
1650 | MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size"); |
1651 | |
1652 | module_param(force_scofix, bool, 0644); |
1653 | MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size"); |
1654 | |
1655 | module_param(reset, bool, 0644); |
1656 | MODULE_PARM_DESC(reset, "Send HCI reset command on initialization"); |
1657 | |
1658 | MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); |
1659 | MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION); |
1660 | MODULE_VERSION(VERSION); |
1661 | MODULE_LICENSE("GPL"); |
1662 |
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