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Merge remote-tracking branch 'omap_dss2/for-next'
[deliverable/linux.git] / drivers / bluetooth / btusb.c
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 #include <asm/unaligned.h>
28
29 #include <net/bluetooth/bluetooth.h>
30 #include <net/bluetooth/hci_core.h>
31
32 #include "btintel.h"
33 #include "btbcm.h"
34 #include "btrtl.h"
35
36 #define VERSION "0.8"
37
38 static bool disable_scofix;
39 static bool force_scofix;
40
41 static bool reset = true;
42
43 static struct usb_driver btusb_driver;
44
45 #define BTUSB_IGNORE 0x01
46 #define BTUSB_DIGIANSWER 0x02
47 #define BTUSB_CSR 0x04
48 #define BTUSB_SNIFFER 0x08
49 #define BTUSB_BCM92035 0x10
50 #define BTUSB_BROKEN_ISOC 0x20
51 #define BTUSB_WRONG_SCO_MTU 0x40
52 #define BTUSB_ATH3012 0x80
53 #define BTUSB_INTEL 0x100
54 #define BTUSB_INTEL_BOOT 0x200
55 #define BTUSB_BCM_PATCHRAM 0x400
56 #define BTUSB_MARVELL 0x800
57 #define BTUSB_SWAVE 0x1000
58 #define BTUSB_INTEL_NEW 0x2000
59 #define BTUSB_AMP 0x4000
60 #define BTUSB_QCA_ROME 0x8000
61 #define BTUSB_BCM_APPLE 0x10000
62 #define BTUSB_REALTEK 0x20000
63 #define BTUSB_BCM2045 0x40000
64 #define BTUSB_IFNUM_2 0x80000
65 #define BTUSB_CW6622 0x100000
66
67 static const struct usb_device_id btusb_table[] = {
68 /* Generic Bluetooth USB device */
69 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
70
71 /* Generic Bluetooth AMP device */
72 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP },
73
74 /* Generic Bluetooth USB interface */
75 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) },
76
77 /* Apple-specific (Broadcom) devices */
78 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01),
79 .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 },
80
81 /* MediaTek MT76x0E */
82 { USB_DEVICE(0x0e8d, 0x763f) },
83
84 /* Broadcom SoftSailing reporting vendor specific */
85 { USB_DEVICE(0x0a5c, 0x21e1) },
86
87 /* Apple MacBookPro 7,1 */
88 { USB_DEVICE(0x05ac, 0x8213) },
89
90 /* Apple iMac11,1 */
91 { USB_DEVICE(0x05ac, 0x8215) },
92
93 /* Apple MacBookPro6,2 */
94 { USB_DEVICE(0x05ac, 0x8218) },
95
96 /* Apple MacBookAir3,1, MacBookAir3,2 */
97 { USB_DEVICE(0x05ac, 0x821b) },
98
99 /* Apple MacBookAir4,1 */
100 { USB_DEVICE(0x05ac, 0x821f) },
101
102 /* Apple MacBookPro8,2 */
103 { USB_DEVICE(0x05ac, 0x821a) },
104
105 /* Apple MacMini5,1 */
106 { USB_DEVICE(0x05ac, 0x8281) },
107
108 /* AVM BlueFRITZ! USB v2.0 */
109 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE },
110
111 /* Bluetooth Ultraport Module from IBM */
112 { USB_DEVICE(0x04bf, 0x030a) },
113
114 /* ALPS Modules with non-standard id */
115 { USB_DEVICE(0x044e, 0x3001) },
116 { USB_DEVICE(0x044e, 0x3002) },
117
118 /* Ericsson with non-standard id */
119 { USB_DEVICE(0x0bdb, 0x1002) },
120
121 /* Canyon CN-BTU1 with HID interfaces */
122 { USB_DEVICE(0x0c10, 0x0000) },
123
124 /* Broadcom BCM20702A0 */
125 { USB_DEVICE(0x413c, 0x8197) },
126
127 /* Broadcom BCM20702B0 (Dynex/Insignia) */
128 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM },
129
130 /* Broadcom BCM43142A0 (Foxconn/Lenovo) */
131 { USB_DEVICE(0x105b, 0xe065), .driver_info = BTUSB_BCM_PATCHRAM },
132
133 /* Foxconn - Hon Hai */
134 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01),
135 .driver_info = BTUSB_BCM_PATCHRAM },
136
137 /* Lite-On Technology - Broadcom based */
138 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01),
139 .driver_info = BTUSB_BCM_PATCHRAM },
140
141 /* Broadcom devices with vendor specific id */
142 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01),
143 .driver_info = BTUSB_BCM_PATCHRAM },
144
145 /* ASUSTek Computer - Broadcom based */
146 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01),
147 .driver_info = BTUSB_BCM_PATCHRAM },
148
149 /* Belkin F8065bf - Broadcom based */
150 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01),
151 .driver_info = BTUSB_BCM_PATCHRAM },
152
153 /* IMC Networks - Broadcom based */
154 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01),
155 .driver_info = BTUSB_BCM_PATCHRAM },
156
157 /* Toshiba Corp - Broadcom based */
158 { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01),
159 .driver_info = BTUSB_BCM_PATCHRAM },
160
161 /* Intel Bluetooth USB Bootloader (RAM module) */
162 { USB_DEVICE(0x8087, 0x0a5a),
163 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
164
165 { } /* Terminating entry */
166 };
167
168 MODULE_DEVICE_TABLE(usb, btusb_table);
169
170 static const struct usb_device_id blacklist_table[] = {
171 /* CSR BlueCore devices */
172 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
173
174 /* Broadcom BCM2033 without firmware */
175 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
176
177 /* Broadcom BCM2045 devices */
178 { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 },
179
180 /* Atheros 3011 with sflash firmware */
181 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
182 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
183 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE },
184 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
185 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
186 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
187 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
188
189 /* Atheros AR9285 Malbec with sflash firmware */
190 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
191
192 /* Atheros 3012 with sflash firmware */
193 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
194 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
195 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
196 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
197 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
198 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
199 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
200 { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 },
201 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
202 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
203 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
204 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
205 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
206 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
207 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
208 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
209 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
210 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
211 { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 },
212 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
213 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
214 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
215 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
216 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
217 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
218 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
219 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
220 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
221 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
222 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
223 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
224 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
225 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 },
226 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
227 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
228 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
229 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
230 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
231 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
232 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
233 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 },
234 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
235 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
236 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
237 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
238 { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 },
239 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
240 { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 },
241 { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 },
242
243 /* Atheros AR5BBU12 with sflash firmware */
244 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
245
246 /* Atheros AR5BBU12 with sflash firmware */
247 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
248 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
249
250 /* QCA ROME chipset */
251 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME },
252 { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME },
253 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME },
254 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME },
255 { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME },
256
257 /* Broadcom BCM2035 */
258 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
259 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
260 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
261
262 /* Broadcom BCM2045 */
263 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
264 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
265
266 /* IBM/Lenovo ThinkPad with Broadcom chip */
267 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
268 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
269
270 /* HP laptop with Broadcom chip */
271 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
272
273 /* Dell laptop with Broadcom chip */
274 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
275
276 /* Dell Wireless 370 and 410 devices */
277 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
278 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
279
280 /* Belkin F8T012 and F8T013 devices */
281 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
282 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
283
284 /* Asus WL-BTD202 device */
285 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
286
287 /* Kensington Bluetooth USB adapter */
288 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
289
290 /* RTX Telecom based adapters with buggy SCO support */
291 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
292 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
293
294 /* CONWISE Technology based adapters with buggy SCO support */
295 { USB_DEVICE(0x0e5e, 0x6622),
296 .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622},
297
298 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
299 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE },
300
301 /* Digianswer devices */
302 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
303 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
304
305 /* CSR BlueCore Bluetooth Sniffer */
306 { USB_DEVICE(0x0a12, 0x0002),
307 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
308
309 /* Frontline ComProbe Bluetooth Sniffer */
310 { USB_DEVICE(0x16d3, 0x0002),
311 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
312
313 /* Marvell Bluetooth devices */
314 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
315 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
316
317 /* Intel Bluetooth devices */
318 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
319 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
320 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL },
321 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_NEW },
322 { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL },
323
324 /* Other Intel Bluetooth devices */
325 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
326 .driver_info = BTUSB_IGNORE },
327
328 /* Realtek Bluetooth devices */
329 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
330 .driver_info = BTUSB_REALTEK },
331
332 /* Additional Realtek 8723AE Bluetooth devices */
333 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
334 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
335
336 /* Additional Realtek 8723BE Bluetooth devices */
337 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
338 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
339 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
340 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
341 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
342
343 /* Additional Realtek 8821AE Bluetooth devices */
344 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
345 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
346 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
347 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
348 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
349
350 /* Silicon Wave based devices */
351 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE },
352
353 { } /* Terminating entry */
354 };
355
356 #define BTUSB_MAX_ISOC_FRAMES 10
357
358 #define BTUSB_INTR_RUNNING 0
359 #define BTUSB_BULK_RUNNING 1
360 #define BTUSB_ISOC_RUNNING 2
361 #define BTUSB_SUSPENDING 3
362 #define BTUSB_DID_ISO_RESUME 4
363 #define BTUSB_BOOTLOADER 5
364 #define BTUSB_DOWNLOADING 6
365 #define BTUSB_FIRMWARE_LOADED 7
366 #define BTUSB_FIRMWARE_FAILED 8
367 #define BTUSB_BOOTING 9
368 #define BTUSB_RESET_RESUME 10
369 #define BTUSB_DIAG_RUNNING 11
370
371 struct btusb_data {
372 struct hci_dev *hdev;
373 struct usb_device *udev;
374 struct usb_interface *intf;
375 struct usb_interface *isoc;
376 struct usb_interface *diag;
377
378 unsigned long flags;
379
380 struct work_struct work;
381 struct work_struct waker;
382
383 struct usb_anchor deferred;
384 struct usb_anchor tx_anchor;
385 int tx_in_flight;
386 spinlock_t txlock;
387
388 struct usb_anchor intr_anchor;
389 struct usb_anchor bulk_anchor;
390 struct usb_anchor isoc_anchor;
391 struct usb_anchor diag_anchor;
392 spinlock_t rxlock;
393
394 struct sk_buff *evt_skb;
395 struct sk_buff *acl_skb;
396 struct sk_buff *sco_skb;
397
398 struct usb_endpoint_descriptor *intr_ep;
399 struct usb_endpoint_descriptor *bulk_tx_ep;
400 struct usb_endpoint_descriptor *bulk_rx_ep;
401 struct usb_endpoint_descriptor *isoc_tx_ep;
402 struct usb_endpoint_descriptor *isoc_rx_ep;
403 struct usb_endpoint_descriptor *diag_tx_ep;
404 struct usb_endpoint_descriptor *diag_rx_ep;
405
406 __u8 cmdreq_type;
407 __u8 cmdreq;
408
409 unsigned int sco_num;
410 int isoc_altsetting;
411 int suspend_count;
412
413 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
414 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
415
416 int (*setup_on_usb)(struct hci_dev *hdev);
417 };
418
419 static inline void btusb_free_frags(struct btusb_data *data)
420 {
421 unsigned long flags;
422
423 spin_lock_irqsave(&data->rxlock, flags);
424
425 kfree_skb(data->evt_skb);
426 data->evt_skb = NULL;
427
428 kfree_skb(data->acl_skb);
429 data->acl_skb = NULL;
430
431 kfree_skb(data->sco_skb);
432 data->sco_skb = NULL;
433
434 spin_unlock_irqrestore(&data->rxlock, flags);
435 }
436
437 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
438 {
439 struct sk_buff *skb;
440 int err = 0;
441
442 spin_lock(&data->rxlock);
443 skb = data->evt_skb;
444
445 while (count) {
446 int len;
447
448 if (!skb) {
449 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
450 if (!skb) {
451 err = -ENOMEM;
452 break;
453 }
454
455 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
456 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE;
457 }
458
459 len = min_t(uint, hci_skb_expect(skb), count);
460 memcpy(skb_put(skb, len), buffer, len);
461
462 count -= len;
463 buffer += len;
464 hci_skb_expect(skb) -= len;
465
466 if (skb->len == HCI_EVENT_HDR_SIZE) {
467 /* Complete event header */
468 hci_skb_expect(skb) = hci_event_hdr(skb)->plen;
469
470 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
471 kfree_skb(skb);
472 skb = NULL;
473
474 err = -EILSEQ;
475 break;
476 }
477 }
478
479 if (!hci_skb_expect(skb)) {
480 /* Complete frame */
481 data->recv_event(data->hdev, skb);
482 skb = NULL;
483 }
484 }
485
486 data->evt_skb = skb;
487 spin_unlock(&data->rxlock);
488
489 return err;
490 }
491
492 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
493 {
494 struct sk_buff *skb;
495 int err = 0;
496
497 spin_lock(&data->rxlock);
498 skb = data->acl_skb;
499
500 while (count) {
501 int len;
502
503 if (!skb) {
504 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
505 if (!skb) {
506 err = -ENOMEM;
507 break;
508 }
509
510 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT;
511 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE;
512 }
513
514 len = min_t(uint, hci_skb_expect(skb), count);
515 memcpy(skb_put(skb, len), buffer, len);
516
517 count -= len;
518 buffer += len;
519 hci_skb_expect(skb) -= len;
520
521 if (skb->len == HCI_ACL_HDR_SIZE) {
522 __le16 dlen = hci_acl_hdr(skb)->dlen;
523
524 /* Complete ACL header */
525 hci_skb_expect(skb) = __le16_to_cpu(dlen);
526
527 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
528 kfree_skb(skb);
529 skb = NULL;
530
531 err = -EILSEQ;
532 break;
533 }
534 }
535
536 if (!hci_skb_expect(skb)) {
537 /* Complete frame */
538 hci_recv_frame(data->hdev, skb);
539 skb = NULL;
540 }
541 }
542
543 data->acl_skb = skb;
544 spin_unlock(&data->rxlock);
545
546 return err;
547 }
548
549 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
550 {
551 struct sk_buff *skb;
552 int err = 0;
553
554 spin_lock(&data->rxlock);
555 skb = data->sco_skb;
556
557 while (count) {
558 int len;
559
560 if (!skb) {
561 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
562 if (!skb) {
563 err = -ENOMEM;
564 break;
565 }
566
567 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT;
568 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE;
569 }
570
571 len = min_t(uint, hci_skb_expect(skb), count);
572 memcpy(skb_put(skb, len), buffer, len);
573
574 count -= len;
575 buffer += len;
576 hci_skb_expect(skb) -= len;
577
578 if (skb->len == HCI_SCO_HDR_SIZE) {
579 /* Complete SCO header */
580 hci_skb_expect(skb) = hci_sco_hdr(skb)->dlen;
581
582 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
583 kfree_skb(skb);
584 skb = NULL;
585
586 err = -EILSEQ;
587 break;
588 }
589 }
590
591 if (!hci_skb_expect(skb)) {
592 /* Complete frame */
593 hci_recv_frame(data->hdev, skb);
594 skb = NULL;
595 }
596 }
597
598 data->sco_skb = skb;
599 spin_unlock(&data->rxlock);
600
601 return err;
602 }
603
604 static void btusb_intr_complete(struct urb *urb)
605 {
606 struct hci_dev *hdev = urb->context;
607 struct btusb_data *data = hci_get_drvdata(hdev);
608 int err;
609
610 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
611 urb->actual_length);
612
613 if (!test_bit(HCI_RUNNING, &hdev->flags))
614 return;
615
616 if (urb->status == 0) {
617 hdev->stat.byte_rx += urb->actual_length;
618
619 if (btusb_recv_intr(data, urb->transfer_buffer,
620 urb->actual_length) < 0) {
621 BT_ERR("%s corrupted event packet", hdev->name);
622 hdev->stat.err_rx++;
623 }
624 } else if (urb->status == -ENOENT) {
625 /* Avoid suspend failed when usb_kill_urb */
626 return;
627 }
628
629 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
630 return;
631
632 usb_mark_last_busy(data->udev);
633 usb_anchor_urb(urb, &data->intr_anchor);
634
635 err = usb_submit_urb(urb, GFP_ATOMIC);
636 if (err < 0) {
637 /* -EPERM: urb is being killed;
638 * -ENODEV: device got disconnected */
639 if (err != -EPERM && err != -ENODEV)
640 BT_ERR("%s urb %p failed to resubmit (%d)",
641 hdev->name, urb, -err);
642 usb_unanchor_urb(urb);
643 }
644 }
645
646 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
647 {
648 struct btusb_data *data = hci_get_drvdata(hdev);
649 struct urb *urb;
650 unsigned char *buf;
651 unsigned int pipe;
652 int err, size;
653
654 BT_DBG("%s", hdev->name);
655
656 if (!data->intr_ep)
657 return -ENODEV;
658
659 urb = usb_alloc_urb(0, mem_flags);
660 if (!urb)
661 return -ENOMEM;
662
663 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
664
665 buf = kmalloc(size, mem_flags);
666 if (!buf) {
667 usb_free_urb(urb);
668 return -ENOMEM;
669 }
670
671 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
672
673 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
674 btusb_intr_complete, hdev, data->intr_ep->bInterval);
675
676 urb->transfer_flags |= URB_FREE_BUFFER;
677
678 usb_anchor_urb(urb, &data->intr_anchor);
679
680 err = usb_submit_urb(urb, mem_flags);
681 if (err < 0) {
682 if (err != -EPERM && err != -ENODEV)
683 BT_ERR("%s urb %p submission failed (%d)",
684 hdev->name, urb, -err);
685 usb_unanchor_urb(urb);
686 }
687
688 usb_free_urb(urb);
689
690 return err;
691 }
692
693 static void btusb_bulk_complete(struct urb *urb)
694 {
695 struct hci_dev *hdev = urb->context;
696 struct btusb_data *data = hci_get_drvdata(hdev);
697 int err;
698
699 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
700 urb->actual_length);
701
702 if (!test_bit(HCI_RUNNING, &hdev->flags))
703 return;
704
705 if (urb->status == 0) {
706 hdev->stat.byte_rx += urb->actual_length;
707
708 if (data->recv_bulk(data, urb->transfer_buffer,
709 urb->actual_length) < 0) {
710 BT_ERR("%s corrupted ACL packet", hdev->name);
711 hdev->stat.err_rx++;
712 }
713 } else if (urb->status == -ENOENT) {
714 /* Avoid suspend failed when usb_kill_urb */
715 return;
716 }
717
718 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
719 return;
720
721 usb_anchor_urb(urb, &data->bulk_anchor);
722 usb_mark_last_busy(data->udev);
723
724 err = usb_submit_urb(urb, GFP_ATOMIC);
725 if (err < 0) {
726 /* -EPERM: urb is being killed;
727 * -ENODEV: device got disconnected */
728 if (err != -EPERM && err != -ENODEV)
729 BT_ERR("%s urb %p failed to resubmit (%d)",
730 hdev->name, urb, -err);
731 usb_unanchor_urb(urb);
732 }
733 }
734
735 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
736 {
737 struct btusb_data *data = hci_get_drvdata(hdev);
738 struct urb *urb;
739 unsigned char *buf;
740 unsigned int pipe;
741 int err, size = HCI_MAX_FRAME_SIZE;
742
743 BT_DBG("%s", hdev->name);
744
745 if (!data->bulk_rx_ep)
746 return -ENODEV;
747
748 urb = usb_alloc_urb(0, mem_flags);
749 if (!urb)
750 return -ENOMEM;
751
752 buf = kmalloc(size, mem_flags);
753 if (!buf) {
754 usb_free_urb(urb);
755 return -ENOMEM;
756 }
757
758 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
759
760 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
761 btusb_bulk_complete, hdev);
762
763 urb->transfer_flags |= URB_FREE_BUFFER;
764
765 usb_mark_last_busy(data->udev);
766 usb_anchor_urb(urb, &data->bulk_anchor);
767
768 err = usb_submit_urb(urb, mem_flags);
769 if (err < 0) {
770 if (err != -EPERM && err != -ENODEV)
771 BT_ERR("%s urb %p submission failed (%d)",
772 hdev->name, urb, -err);
773 usb_unanchor_urb(urb);
774 }
775
776 usb_free_urb(urb);
777
778 return err;
779 }
780
781 static void btusb_isoc_complete(struct urb *urb)
782 {
783 struct hci_dev *hdev = urb->context;
784 struct btusb_data *data = hci_get_drvdata(hdev);
785 int i, err;
786
787 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
788 urb->actual_length);
789
790 if (!test_bit(HCI_RUNNING, &hdev->flags))
791 return;
792
793 if (urb->status == 0) {
794 for (i = 0; i < urb->number_of_packets; i++) {
795 unsigned int offset = urb->iso_frame_desc[i].offset;
796 unsigned int length = urb->iso_frame_desc[i].actual_length;
797
798 if (urb->iso_frame_desc[i].status)
799 continue;
800
801 hdev->stat.byte_rx += length;
802
803 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
804 length) < 0) {
805 BT_ERR("%s corrupted SCO packet", hdev->name);
806 hdev->stat.err_rx++;
807 }
808 }
809 } else if (urb->status == -ENOENT) {
810 /* Avoid suspend failed when usb_kill_urb */
811 return;
812 }
813
814 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
815 return;
816
817 usb_anchor_urb(urb, &data->isoc_anchor);
818
819 err = usb_submit_urb(urb, GFP_ATOMIC);
820 if (err < 0) {
821 /* -EPERM: urb is being killed;
822 * -ENODEV: device got disconnected */
823 if (err != -EPERM && err != -ENODEV)
824 BT_ERR("%s urb %p failed to resubmit (%d)",
825 hdev->name, urb, -err);
826 usb_unanchor_urb(urb);
827 }
828 }
829
830 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
831 {
832 int i, offset = 0;
833
834 BT_DBG("len %d mtu %d", len, mtu);
835
836 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
837 i++, offset += mtu, len -= mtu) {
838 urb->iso_frame_desc[i].offset = offset;
839 urb->iso_frame_desc[i].length = mtu;
840 }
841
842 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
843 urb->iso_frame_desc[i].offset = offset;
844 urb->iso_frame_desc[i].length = len;
845 i++;
846 }
847
848 urb->number_of_packets = i;
849 }
850
851 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
852 {
853 struct btusb_data *data = hci_get_drvdata(hdev);
854 struct urb *urb;
855 unsigned char *buf;
856 unsigned int pipe;
857 int err, size;
858
859 BT_DBG("%s", hdev->name);
860
861 if (!data->isoc_rx_ep)
862 return -ENODEV;
863
864 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
865 if (!urb)
866 return -ENOMEM;
867
868 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
869 BTUSB_MAX_ISOC_FRAMES;
870
871 buf = kmalloc(size, mem_flags);
872 if (!buf) {
873 usb_free_urb(urb);
874 return -ENOMEM;
875 }
876
877 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
878
879 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
880 hdev, data->isoc_rx_ep->bInterval);
881
882 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
883
884 __fill_isoc_descriptor(urb, size,
885 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
886
887 usb_anchor_urb(urb, &data->isoc_anchor);
888
889 err = usb_submit_urb(urb, mem_flags);
890 if (err < 0) {
891 if (err != -EPERM && err != -ENODEV)
892 BT_ERR("%s urb %p submission failed (%d)",
893 hdev->name, urb, -err);
894 usb_unanchor_urb(urb);
895 }
896
897 usb_free_urb(urb);
898
899 return err;
900 }
901
902 static void btusb_diag_complete(struct urb *urb)
903 {
904 struct hci_dev *hdev = urb->context;
905 struct btusb_data *data = hci_get_drvdata(hdev);
906 int err;
907
908 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
909 urb->actual_length);
910
911 if (urb->status == 0) {
912 struct sk_buff *skb;
913
914 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC);
915 if (skb) {
916 memcpy(skb_put(skb, urb->actual_length),
917 urb->transfer_buffer, urb->actual_length);
918 hci_recv_diag(hdev, skb);
919 }
920 } else if (urb->status == -ENOENT) {
921 /* Avoid suspend failed when usb_kill_urb */
922 return;
923 }
924
925 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags))
926 return;
927
928 usb_anchor_urb(urb, &data->diag_anchor);
929 usb_mark_last_busy(data->udev);
930
931 err = usb_submit_urb(urb, GFP_ATOMIC);
932 if (err < 0) {
933 /* -EPERM: urb is being killed;
934 * -ENODEV: device got disconnected */
935 if (err != -EPERM && err != -ENODEV)
936 BT_ERR("%s urb %p failed to resubmit (%d)",
937 hdev->name, urb, -err);
938 usb_unanchor_urb(urb);
939 }
940 }
941
942 static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags)
943 {
944 struct btusb_data *data = hci_get_drvdata(hdev);
945 struct urb *urb;
946 unsigned char *buf;
947 unsigned int pipe;
948 int err, size = HCI_MAX_FRAME_SIZE;
949
950 BT_DBG("%s", hdev->name);
951
952 if (!data->diag_rx_ep)
953 return -ENODEV;
954
955 urb = usb_alloc_urb(0, mem_flags);
956 if (!urb)
957 return -ENOMEM;
958
959 buf = kmalloc(size, mem_flags);
960 if (!buf) {
961 usb_free_urb(urb);
962 return -ENOMEM;
963 }
964
965 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress);
966
967 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
968 btusb_diag_complete, hdev);
969
970 urb->transfer_flags |= URB_FREE_BUFFER;
971
972 usb_mark_last_busy(data->udev);
973 usb_anchor_urb(urb, &data->diag_anchor);
974
975 err = usb_submit_urb(urb, mem_flags);
976 if (err < 0) {
977 if (err != -EPERM && err != -ENODEV)
978 BT_ERR("%s urb %p submission failed (%d)",
979 hdev->name, urb, -err);
980 usb_unanchor_urb(urb);
981 }
982
983 usb_free_urb(urb);
984
985 return err;
986 }
987
988 static void btusb_tx_complete(struct urb *urb)
989 {
990 struct sk_buff *skb = urb->context;
991 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
992 struct btusb_data *data = hci_get_drvdata(hdev);
993
994 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
995 urb->actual_length);
996
997 if (!test_bit(HCI_RUNNING, &hdev->flags))
998 goto done;
999
1000 if (!urb->status)
1001 hdev->stat.byte_tx += urb->transfer_buffer_length;
1002 else
1003 hdev->stat.err_tx++;
1004
1005 done:
1006 spin_lock(&data->txlock);
1007 data->tx_in_flight--;
1008 spin_unlock(&data->txlock);
1009
1010 kfree(urb->setup_packet);
1011
1012 kfree_skb(skb);
1013 }
1014
1015 static void btusb_isoc_tx_complete(struct urb *urb)
1016 {
1017 struct sk_buff *skb = urb->context;
1018 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1019
1020 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1021 urb->actual_length);
1022
1023 if (!test_bit(HCI_RUNNING, &hdev->flags))
1024 goto done;
1025
1026 if (!urb->status)
1027 hdev->stat.byte_tx += urb->transfer_buffer_length;
1028 else
1029 hdev->stat.err_tx++;
1030
1031 done:
1032 kfree(urb->setup_packet);
1033
1034 kfree_skb(skb);
1035 }
1036
1037 static int btusb_open(struct hci_dev *hdev)
1038 {
1039 struct btusb_data *data = hci_get_drvdata(hdev);
1040 int err;
1041
1042 BT_DBG("%s", hdev->name);
1043
1044 /* Patching USB firmware files prior to starting any URBs of HCI path
1045 * It is more safe to use USB bulk channel for downloading USB patch
1046 */
1047 if (data->setup_on_usb) {
1048 err = data->setup_on_usb(hdev);
1049 if (err < 0)
1050 return err;
1051 }
1052
1053 err = usb_autopm_get_interface(data->intf);
1054 if (err < 0)
1055 return err;
1056
1057 data->intf->needs_remote_wakeup = 1;
1058
1059 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
1060 goto done;
1061
1062 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
1063 if (err < 0)
1064 goto failed;
1065
1066 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1067 if (err < 0) {
1068 usb_kill_anchored_urbs(&data->intr_anchor);
1069 goto failed;
1070 }
1071
1072 set_bit(BTUSB_BULK_RUNNING, &data->flags);
1073 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1074
1075 if (data->diag) {
1076 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL))
1077 set_bit(BTUSB_DIAG_RUNNING, &data->flags);
1078 }
1079
1080 done:
1081 usb_autopm_put_interface(data->intf);
1082 return 0;
1083
1084 failed:
1085 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1086 usb_autopm_put_interface(data->intf);
1087 return err;
1088 }
1089
1090 static void btusb_stop_traffic(struct btusb_data *data)
1091 {
1092 usb_kill_anchored_urbs(&data->intr_anchor);
1093 usb_kill_anchored_urbs(&data->bulk_anchor);
1094 usb_kill_anchored_urbs(&data->isoc_anchor);
1095 usb_kill_anchored_urbs(&data->diag_anchor);
1096 }
1097
1098 static int btusb_close(struct hci_dev *hdev)
1099 {
1100 struct btusb_data *data = hci_get_drvdata(hdev);
1101 int err;
1102
1103 BT_DBG("%s", hdev->name);
1104
1105 cancel_work_sync(&data->work);
1106 cancel_work_sync(&data->waker);
1107
1108 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1109 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1110 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1111 clear_bit(BTUSB_DIAG_RUNNING, &data->flags);
1112
1113 btusb_stop_traffic(data);
1114 btusb_free_frags(data);
1115
1116 err = usb_autopm_get_interface(data->intf);
1117 if (err < 0)
1118 goto failed;
1119
1120 data->intf->needs_remote_wakeup = 0;
1121 usb_autopm_put_interface(data->intf);
1122
1123 failed:
1124 usb_scuttle_anchored_urbs(&data->deferred);
1125 return 0;
1126 }
1127
1128 static int btusb_flush(struct hci_dev *hdev)
1129 {
1130 struct btusb_data *data = hci_get_drvdata(hdev);
1131
1132 BT_DBG("%s", hdev->name);
1133
1134 usb_kill_anchored_urbs(&data->tx_anchor);
1135 btusb_free_frags(data);
1136
1137 return 0;
1138 }
1139
1140 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
1141 {
1142 struct btusb_data *data = hci_get_drvdata(hdev);
1143 struct usb_ctrlrequest *dr;
1144 struct urb *urb;
1145 unsigned int pipe;
1146
1147 urb = usb_alloc_urb(0, GFP_KERNEL);
1148 if (!urb)
1149 return ERR_PTR(-ENOMEM);
1150
1151 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
1152 if (!dr) {
1153 usb_free_urb(urb);
1154 return ERR_PTR(-ENOMEM);
1155 }
1156
1157 dr->bRequestType = data->cmdreq_type;
1158 dr->bRequest = data->cmdreq;
1159 dr->wIndex = 0;
1160 dr->wValue = 0;
1161 dr->wLength = __cpu_to_le16(skb->len);
1162
1163 pipe = usb_sndctrlpipe(data->udev, 0x00);
1164
1165 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
1166 skb->data, skb->len, btusb_tx_complete, skb);
1167
1168 skb->dev = (void *)hdev;
1169
1170 return urb;
1171 }
1172
1173 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
1174 {
1175 struct btusb_data *data = hci_get_drvdata(hdev);
1176 struct urb *urb;
1177 unsigned int pipe;
1178
1179 if (!data->bulk_tx_ep)
1180 return ERR_PTR(-ENODEV);
1181
1182 urb = usb_alloc_urb(0, GFP_KERNEL);
1183 if (!urb)
1184 return ERR_PTR(-ENOMEM);
1185
1186 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
1187
1188 usb_fill_bulk_urb(urb, data->udev, pipe,
1189 skb->data, skb->len, btusb_tx_complete, skb);
1190
1191 skb->dev = (void *)hdev;
1192
1193 return urb;
1194 }
1195
1196 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
1197 {
1198 struct btusb_data *data = hci_get_drvdata(hdev);
1199 struct urb *urb;
1200 unsigned int pipe;
1201
1202 if (!data->isoc_tx_ep)
1203 return ERR_PTR(-ENODEV);
1204
1205 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
1206 if (!urb)
1207 return ERR_PTR(-ENOMEM);
1208
1209 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
1210
1211 usb_fill_int_urb(urb, data->udev, pipe,
1212 skb->data, skb->len, btusb_isoc_tx_complete,
1213 skb, data->isoc_tx_ep->bInterval);
1214
1215 urb->transfer_flags = URB_ISO_ASAP;
1216
1217 __fill_isoc_descriptor(urb, skb->len,
1218 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
1219
1220 skb->dev = (void *)hdev;
1221
1222 return urb;
1223 }
1224
1225 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
1226 {
1227 struct btusb_data *data = hci_get_drvdata(hdev);
1228 int err;
1229
1230 usb_anchor_urb(urb, &data->tx_anchor);
1231
1232 err = usb_submit_urb(urb, GFP_KERNEL);
1233 if (err < 0) {
1234 if (err != -EPERM && err != -ENODEV)
1235 BT_ERR("%s urb %p submission failed (%d)",
1236 hdev->name, urb, -err);
1237 kfree(urb->setup_packet);
1238 usb_unanchor_urb(urb);
1239 } else {
1240 usb_mark_last_busy(data->udev);
1241 }
1242
1243 usb_free_urb(urb);
1244 return err;
1245 }
1246
1247 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
1248 {
1249 struct btusb_data *data = hci_get_drvdata(hdev);
1250 unsigned long flags;
1251 bool suspending;
1252
1253 spin_lock_irqsave(&data->txlock, flags);
1254 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
1255 if (!suspending)
1256 data->tx_in_flight++;
1257 spin_unlock_irqrestore(&data->txlock, flags);
1258
1259 if (!suspending)
1260 return submit_tx_urb(hdev, urb);
1261
1262 usb_anchor_urb(urb, &data->deferred);
1263 schedule_work(&data->waker);
1264
1265 usb_free_urb(urb);
1266 return 0;
1267 }
1268
1269 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
1270 {
1271 struct urb *urb;
1272
1273 BT_DBG("%s", hdev->name);
1274
1275 switch (hci_skb_pkt_type(skb)) {
1276 case HCI_COMMAND_PKT:
1277 urb = alloc_ctrl_urb(hdev, skb);
1278 if (IS_ERR(urb))
1279 return PTR_ERR(urb);
1280
1281 hdev->stat.cmd_tx++;
1282 return submit_or_queue_tx_urb(hdev, urb);
1283
1284 case HCI_ACLDATA_PKT:
1285 urb = alloc_bulk_urb(hdev, skb);
1286 if (IS_ERR(urb))
1287 return PTR_ERR(urb);
1288
1289 hdev->stat.acl_tx++;
1290 return submit_or_queue_tx_urb(hdev, urb);
1291
1292 case HCI_SCODATA_PKT:
1293 if (hci_conn_num(hdev, SCO_LINK) < 1)
1294 return -ENODEV;
1295
1296 urb = alloc_isoc_urb(hdev, skb);
1297 if (IS_ERR(urb))
1298 return PTR_ERR(urb);
1299
1300 hdev->stat.sco_tx++;
1301 return submit_tx_urb(hdev, urb);
1302 }
1303
1304 return -EILSEQ;
1305 }
1306
1307 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
1308 {
1309 struct btusb_data *data = hci_get_drvdata(hdev);
1310
1311 BT_DBG("%s evt %d", hdev->name, evt);
1312
1313 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
1314 data->sco_num = hci_conn_num(hdev, SCO_LINK);
1315 schedule_work(&data->work);
1316 }
1317 }
1318
1319 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
1320 {
1321 struct btusb_data *data = hci_get_drvdata(hdev);
1322 struct usb_interface *intf = data->isoc;
1323 struct usb_endpoint_descriptor *ep_desc;
1324 int i, err;
1325
1326 if (!data->isoc)
1327 return -ENODEV;
1328
1329 err = usb_set_interface(data->udev, 1, altsetting);
1330 if (err < 0) {
1331 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
1332 return err;
1333 }
1334
1335 data->isoc_altsetting = altsetting;
1336
1337 data->isoc_tx_ep = NULL;
1338 data->isoc_rx_ep = NULL;
1339
1340 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1341 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1342
1343 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
1344 data->isoc_tx_ep = ep_desc;
1345 continue;
1346 }
1347
1348 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
1349 data->isoc_rx_ep = ep_desc;
1350 continue;
1351 }
1352 }
1353
1354 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
1355 BT_ERR("%s invalid SCO descriptors", hdev->name);
1356 return -ENODEV;
1357 }
1358
1359 return 0;
1360 }
1361
1362 static void btusb_work(struct work_struct *work)
1363 {
1364 struct btusb_data *data = container_of(work, struct btusb_data, work);
1365 struct hci_dev *hdev = data->hdev;
1366 int new_alts;
1367 int err;
1368
1369 if (data->sco_num > 0) {
1370 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
1371 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
1372 if (err < 0) {
1373 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1374 usb_kill_anchored_urbs(&data->isoc_anchor);
1375 return;
1376 }
1377
1378 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
1379 }
1380
1381 if (hdev->voice_setting & 0x0020) {
1382 static const int alts[3] = { 2, 4, 5 };
1383
1384 new_alts = alts[data->sco_num - 1];
1385 } else {
1386 new_alts = data->sco_num;
1387 }
1388
1389 if (data->isoc_altsetting != new_alts) {
1390 unsigned long flags;
1391
1392 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1393 usb_kill_anchored_urbs(&data->isoc_anchor);
1394
1395 /* When isochronous alternate setting needs to be
1396 * changed, because SCO connection has been added
1397 * or removed, a packet fragment may be left in the
1398 * reassembling state. This could lead to wrongly
1399 * assembled fragments.
1400 *
1401 * Clear outstanding fragment when selecting a new
1402 * alternate setting.
1403 */
1404 spin_lock_irqsave(&data->rxlock, flags);
1405 kfree_skb(data->sco_skb);
1406 data->sco_skb = NULL;
1407 spin_unlock_irqrestore(&data->rxlock, flags);
1408
1409 if (__set_isoc_interface(hdev, new_alts) < 0)
1410 return;
1411 }
1412
1413 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1414 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
1415 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1416 else
1417 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
1418 }
1419 } else {
1420 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1421 usb_kill_anchored_urbs(&data->isoc_anchor);
1422
1423 __set_isoc_interface(hdev, 0);
1424 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
1425 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
1426 }
1427 }
1428
1429 static void btusb_waker(struct work_struct *work)
1430 {
1431 struct btusb_data *data = container_of(work, struct btusb_data, waker);
1432 int err;
1433
1434 err = usb_autopm_get_interface(data->intf);
1435 if (err < 0)
1436 return;
1437
1438 usb_autopm_put_interface(data->intf);
1439 }
1440
1441 static int btusb_setup_bcm92035(struct hci_dev *hdev)
1442 {
1443 struct sk_buff *skb;
1444 u8 val = 0x00;
1445
1446 BT_DBG("%s", hdev->name);
1447
1448 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
1449 if (IS_ERR(skb))
1450 BT_ERR("BCM92035 command failed (%ld)", -PTR_ERR(skb));
1451 else
1452 kfree_skb(skb);
1453
1454 return 0;
1455 }
1456
1457 static int btusb_setup_csr(struct hci_dev *hdev)
1458 {
1459 struct hci_rp_read_local_version *rp;
1460 struct sk_buff *skb;
1461
1462 BT_DBG("%s", hdev->name);
1463
1464 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1465 HCI_INIT_TIMEOUT);
1466 if (IS_ERR(skb)) {
1467 int err = PTR_ERR(skb);
1468 BT_ERR("%s: CSR: Local version failed (%d)", hdev->name, err);
1469 return err;
1470 }
1471
1472 if (skb->len != sizeof(struct hci_rp_read_local_version)) {
1473 BT_ERR("%s: CSR: Local version length mismatch", hdev->name);
1474 kfree_skb(skb);
1475 return -EIO;
1476 }
1477
1478 rp = (struct hci_rp_read_local_version *)skb->data;
1479
1480 /* Detect controllers which aren't real CSR ones. */
1481 if (le16_to_cpu(rp->manufacturer) != 10 ||
1482 le16_to_cpu(rp->lmp_subver) == 0x0c5c) {
1483 /* Clear the reset quirk since this is not an actual
1484 * early Bluetooth 1.1 device from CSR.
1485 */
1486 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1487
1488 /* These fake CSR controllers have all a broken
1489 * stored link key handling and so just disable it.
1490 */
1491 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
1492 }
1493
1494 kfree_skb(skb);
1495
1496 return 0;
1497 }
1498
1499 static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev,
1500 struct intel_version *ver)
1501 {
1502 const struct firmware *fw;
1503 char fwname[64];
1504 int ret;
1505
1506 snprintf(fwname, sizeof(fwname),
1507 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq",
1508 ver->hw_platform, ver->hw_variant, ver->hw_revision,
1509 ver->fw_variant, ver->fw_revision, ver->fw_build_num,
1510 ver->fw_build_ww, ver->fw_build_yy);
1511
1512 ret = request_firmware(&fw, fwname, &hdev->dev);
1513 if (ret < 0) {
1514 if (ret == -EINVAL) {
1515 BT_ERR("%s Intel firmware file request failed (%d)",
1516 hdev->name, ret);
1517 return NULL;
1518 }
1519
1520 BT_ERR("%s failed to open Intel firmware file: %s(%d)",
1521 hdev->name, fwname, ret);
1522
1523 /* If the correct firmware patch file is not found, use the
1524 * default firmware patch file instead
1525 */
1526 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq",
1527 ver->hw_platform, ver->hw_variant);
1528 if (request_firmware(&fw, fwname, &hdev->dev) < 0) {
1529 BT_ERR("%s failed to open default Intel fw file: %s",
1530 hdev->name, fwname);
1531 return NULL;
1532 }
1533 }
1534
1535 BT_INFO("%s: Intel Bluetooth firmware file: %s", hdev->name, fwname);
1536
1537 return fw;
1538 }
1539
1540 static int btusb_setup_intel_patching(struct hci_dev *hdev,
1541 const struct firmware *fw,
1542 const u8 **fw_ptr, int *disable_patch)
1543 {
1544 struct sk_buff *skb;
1545 struct hci_command_hdr *cmd;
1546 const u8 *cmd_param;
1547 struct hci_event_hdr *evt = NULL;
1548 const u8 *evt_param = NULL;
1549 int remain = fw->size - (*fw_ptr - fw->data);
1550
1551 /* The first byte indicates the types of the patch command or event.
1552 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes
1553 * in the current firmware buffer doesn't start with 0x01 or
1554 * the size of remain buffer is smaller than HCI command header,
1555 * the firmware file is corrupted and it should stop the patching
1556 * process.
1557 */
1558 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) {
1559 BT_ERR("%s Intel fw corrupted: invalid cmd read", hdev->name);
1560 return -EINVAL;
1561 }
1562 (*fw_ptr)++;
1563 remain--;
1564
1565 cmd = (struct hci_command_hdr *)(*fw_ptr);
1566 *fw_ptr += sizeof(*cmd);
1567 remain -= sizeof(*cmd);
1568
1569 /* Ensure that the remain firmware data is long enough than the length
1570 * of command parameter. If not, the firmware file is corrupted.
1571 */
1572 if (remain < cmd->plen) {
1573 BT_ERR("%s Intel fw corrupted: invalid cmd len", hdev->name);
1574 return -EFAULT;
1575 }
1576
1577 /* If there is a command that loads a patch in the firmware
1578 * file, then enable the patch upon success, otherwise just
1579 * disable the manufacturer mode, for example patch activation
1580 * is not required when the default firmware patch file is used
1581 * because there are no patch data to load.
1582 */
1583 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e)
1584 *disable_patch = 0;
1585
1586 cmd_param = *fw_ptr;
1587 *fw_ptr += cmd->plen;
1588 remain -= cmd->plen;
1589
1590 /* This reads the expected events when the above command is sent to the
1591 * device. Some vendor commands expects more than one events, for
1592 * example command status event followed by vendor specific event.
1593 * For this case, it only keeps the last expected event. so the command
1594 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of
1595 * last expected event.
1596 */
1597 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) {
1598 (*fw_ptr)++;
1599 remain--;
1600
1601 evt = (struct hci_event_hdr *)(*fw_ptr);
1602 *fw_ptr += sizeof(*evt);
1603 remain -= sizeof(*evt);
1604
1605 if (remain < evt->plen) {
1606 BT_ERR("%s Intel fw corrupted: invalid evt len",
1607 hdev->name);
1608 return -EFAULT;
1609 }
1610
1611 evt_param = *fw_ptr;
1612 *fw_ptr += evt->plen;
1613 remain -= evt->plen;
1614 }
1615
1616 /* Every HCI commands in the firmware file has its correspond event.
1617 * If event is not found or remain is smaller than zero, the firmware
1618 * file is corrupted.
1619 */
1620 if (!evt || !evt_param || remain < 0) {
1621 BT_ERR("%s Intel fw corrupted: invalid evt read", hdev->name);
1622 return -EFAULT;
1623 }
1624
1625 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen,
1626 cmd_param, evt->evt, HCI_INIT_TIMEOUT);
1627 if (IS_ERR(skb)) {
1628 BT_ERR("%s sending Intel patch command (0x%4.4x) failed (%ld)",
1629 hdev->name, cmd->opcode, PTR_ERR(skb));
1630 return PTR_ERR(skb);
1631 }
1632
1633 /* It ensures that the returned event matches the event data read from
1634 * the firmware file. At fist, it checks the length and then
1635 * the contents of the event.
1636 */
1637 if (skb->len != evt->plen) {
1638 BT_ERR("%s mismatch event length (opcode 0x%4.4x)", hdev->name,
1639 le16_to_cpu(cmd->opcode));
1640 kfree_skb(skb);
1641 return -EFAULT;
1642 }
1643
1644 if (memcmp(skb->data, evt_param, evt->plen)) {
1645 BT_ERR("%s mismatch event parameter (opcode 0x%4.4x)",
1646 hdev->name, le16_to_cpu(cmd->opcode));
1647 kfree_skb(skb);
1648 return -EFAULT;
1649 }
1650 kfree_skb(skb);
1651
1652 return 0;
1653 }
1654
1655 static int btusb_setup_intel(struct hci_dev *hdev)
1656 {
1657 struct sk_buff *skb;
1658 const struct firmware *fw;
1659 const u8 *fw_ptr;
1660 int disable_patch, err;
1661 struct intel_version ver;
1662
1663 BT_DBG("%s", hdev->name);
1664
1665 /* The controller has a bug with the first HCI command sent to it
1666 * returning number of completed commands as zero. This would stall the
1667 * command processing in the Bluetooth core.
1668 *
1669 * As a workaround, send HCI Reset command first which will reset the
1670 * number of completed commands and allow normal command processing
1671 * from now on.
1672 */
1673 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1674 if (IS_ERR(skb)) {
1675 BT_ERR("%s sending initial HCI reset command failed (%ld)",
1676 hdev->name, PTR_ERR(skb));
1677 return PTR_ERR(skb);
1678 }
1679 kfree_skb(skb);
1680
1681 /* Read Intel specific controller version first to allow selection of
1682 * which firmware file to load.
1683 *
1684 * The returned information are hardware variant and revision plus
1685 * firmware variant, revision and build number.
1686 */
1687 err = btintel_read_version(hdev, &ver);
1688 if (err)
1689 return err;
1690
1691 BT_INFO("%s: read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
1692 hdev->name, ver.hw_platform, ver.hw_variant, ver.hw_revision,
1693 ver.fw_variant, ver.fw_revision, ver.fw_build_num,
1694 ver.fw_build_ww, ver.fw_build_yy, ver.fw_patch_num);
1695
1696 /* fw_patch_num indicates the version of patch the device currently
1697 * have. If there is no patch data in the device, it is always 0x00.
1698 * So, if it is other than 0x00, no need to patch the device again.
1699 */
1700 if (ver.fw_patch_num) {
1701 BT_INFO("%s: Intel device is already patched. patch num: %02x",
1702 hdev->name, ver.fw_patch_num);
1703 goto complete;
1704 }
1705
1706 /* Opens the firmware patch file based on the firmware version read
1707 * from the controller. If it fails to open the matching firmware
1708 * patch file, it tries to open the default firmware patch file.
1709 * If no patch file is found, allow the device to operate without
1710 * a patch.
1711 */
1712 fw = btusb_setup_intel_get_fw(hdev, &ver);
1713 if (!fw)
1714 goto complete;
1715 fw_ptr = fw->data;
1716
1717 /* Enable the manufacturer mode of the controller.
1718 * Only while this mode is enabled, the driver can download the
1719 * firmware patch data and configuration parameters.
1720 */
1721 err = btintel_enter_mfg(hdev);
1722 if (err) {
1723 release_firmware(fw);
1724 return err;
1725 }
1726
1727 disable_patch = 1;
1728
1729 /* The firmware data file consists of list of Intel specific HCI
1730 * commands and its expected events. The first byte indicates the
1731 * type of the message, either HCI command or HCI event.
1732 *
1733 * It reads the command and its expected event from the firmware file,
1734 * and send to the controller. Once __hci_cmd_sync_ev() returns,
1735 * the returned event is compared with the event read from the firmware
1736 * file and it will continue until all the messages are downloaded to
1737 * the controller.
1738 *
1739 * Once the firmware patching is completed successfully,
1740 * the manufacturer mode is disabled with reset and activating the
1741 * downloaded patch.
1742 *
1743 * If the firmware patching fails, the manufacturer mode is
1744 * disabled with reset and deactivating the patch.
1745 *
1746 * If the default patch file is used, no reset is done when disabling
1747 * the manufacturer.
1748 */
1749 while (fw->size > fw_ptr - fw->data) {
1750 int ret;
1751
1752 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr,
1753 &disable_patch);
1754 if (ret < 0)
1755 goto exit_mfg_deactivate;
1756 }
1757
1758 release_firmware(fw);
1759
1760 if (disable_patch)
1761 goto exit_mfg_disable;
1762
1763 /* Patching completed successfully and disable the manufacturer mode
1764 * with reset and activate the downloaded firmware patches.
1765 */
1766 err = btintel_exit_mfg(hdev, true, true);
1767 if (err)
1768 return err;
1769
1770 BT_INFO("%s: Intel Bluetooth firmware patch completed and activated",
1771 hdev->name);
1772
1773 goto complete;
1774
1775 exit_mfg_disable:
1776 /* Disable the manufacturer mode without reset */
1777 err = btintel_exit_mfg(hdev, false, false);
1778 if (err)
1779 return err;
1780
1781 BT_INFO("%s: Intel Bluetooth firmware patch completed", hdev->name);
1782
1783 goto complete;
1784
1785 exit_mfg_deactivate:
1786 release_firmware(fw);
1787
1788 /* Patching failed. Disable the manufacturer mode with reset and
1789 * deactivate the downloaded firmware patches.
1790 */
1791 err = btintel_exit_mfg(hdev, true, false);
1792 if (err)
1793 return err;
1794
1795 BT_INFO("%s: Intel Bluetooth firmware patch completed and deactivated",
1796 hdev->name);
1797
1798 complete:
1799 /* Set the event mask for Intel specific vendor events. This enables
1800 * a few extra events that are useful during general operation.
1801 */
1802 btintel_set_event_mask_mfg(hdev, false);
1803
1804 btintel_check_bdaddr(hdev);
1805 return 0;
1806 }
1807
1808 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
1809 {
1810 struct sk_buff *skb;
1811 struct hci_event_hdr *hdr;
1812 struct hci_ev_cmd_complete *evt;
1813
1814 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_ATOMIC);
1815 if (!skb)
1816 return -ENOMEM;
1817
1818 hdr = (struct hci_event_hdr *)skb_put(skb, sizeof(*hdr));
1819 hdr->evt = HCI_EV_CMD_COMPLETE;
1820 hdr->plen = sizeof(*evt) + 1;
1821
1822 evt = (struct hci_ev_cmd_complete *)skb_put(skb, sizeof(*evt));
1823 evt->ncmd = 0x01;
1824 evt->opcode = cpu_to_le16(opcode);
1825
1826 *skb_put(skb, 1) = 0x00;
1827
1828 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
1829
1830 return hci_recv_frame(hdev, skb);
1831 }
1832
1833 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
1834 int count)
1835 {
1836 /* When the device is in bootloader mode, then it can send
1837 * events via the bulk endpoint. These events are treated the
1838 * same way as the ones received from the interrupt endpoint.
1839 */
1840 if (test_bit(BTUSB_BOOTLOADER, &data->flags))
1841 return btusb_recv_intr(data, buffer, count);
1842
1843 return btusb_recv_bulk(data, buffer, count);
1844 }
1845
1846 static void btusb_intel_bootup(struct btusb_data *data, const void *ptr,
1847 unsigned int len)
1848 {
1849 const struct intel_bootup *evt = ptr;
1850
1851 if (len != sizeof(*evt))
1852 return;
1853
1854 if (test_and_clear_bit(BTUSB_BOOTING, &data->flags)) {
1855 smp_mb__after_atomic();
1856 wake_up_bit(&data->flags, BTUSB_BOOTING);
1857 }
1858 }
1859
1860 static void btusb_intel_secure_send_result(struct btusb_data *data,
1861 const void *ptr, unsigned int len)
1862 {
1863 const struct intel_secure_send_result *evt = ptr;
1864
1865 if (len != sizeof(*evt))
1866 return;
1867
1868 if (evt->result)
1869 set_bit(BTUSB_FIRMWARE_FAILED, &data->flags);
1870
1871 if (test_and_clear_bit(BTUSB_DOWNLOADING, &data->flags) &&
1872 test_bit(BTUSB_FIRMWARE_LOADED, &data->flags)) {
1873 smp_mb__after_atomic();
1874 wake_up_bit(&data->flags, BTUSB_DOWNLOADING);
1875 }
1876 }
1877
1878 static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb)
1879 {
1880 struct btusb_data *data = hci_get_drvdata(hdev);
1881
1882 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
1883 struct hci_event_hdr *hdr = (void *)skb->data;
1884
1885 if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff &&
1886 hdr->plen > 0) {
1887 const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1;
1888 unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1;
1889
1890 switch (skb->data[2]) {
1891 case 0x02:
1892 /* When switching to the operational firmware
1893 * the device sends a vendor specific event
1894 * indicating that the bootup completed.
1895 */
1896 btusb_intel_bootup(data, ptr, len);
1897 break;
1898 case 0x06:
1899 /* When the firmware loading completes the
1900 * device sends out a vendor specific event
1901 * indicating the result of the firmware
1902 * loading.
1903 */
1904 btusb_intel_secure_send_result(data, ptr, len);
1905 break;
1906 }
1907 }
1908 }
1909
1910 return hci_recv_frame(hdev, skb);
1911 }
1912
1913 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
1914 {
1915 struct btusb_data *data = hci_get_drvdata(hdev);
1916 struct urb *urb;
1917
1918 BT_DBG("%s", hdev->name);
1919
1920 switch (hci_skb_pkt_type(skb)) {
1921 case HCI_COMMAND_PKT:
1922 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
1923 struct hci_command_hdr *cmd = (void *)skb->data;
1924 __u16 opcode = le16_to_cpu(cmd->opcode);
1925
1926 /* When in bootloader mode and the command 0xfc09
1927 * is received, it needs to be send down the
1928 * bulk endpoint. So allocate a bulk URB instead.
1929 */
1930 if (opcode == 0xfc09)
1931 urb = alloc_bulk_urb(hdev, skb);
1932 else
1933 urb = alloc_ctrl_urb(hdev, skb);
1934
1935 /* When the 0xfc01 command is issued to boot into
1936 * the operational firmware, it will actually not
1937 * send a command complete event. To keep the flow
1938 * control working inject that event here.
1939 */
1940 if (opcode == 0xfc01)
1941 inject_cmd_complete(hdev, opcode);
1942 } else {
1943 urb = alloc_ctrl_urb(hdev, skb);
1944 }
1945 if (IS_ERR(urb))
1946 return PTR_ERR(urb);
1947
1948 hdev->stat.cmd_tx++;
1949 return submit_or_queue_tx_urb(hdev, urb);
1950
1951 case HCI_ACLDATA_PKT:
1952 urb = alloc_bulk_urb(hdev, skb);
1953 if (IS_ERR(urb))
1954 return PTR_ERR(urb);
1955
1956 hdev->stat.acl_tx++;
1957 return submit_or_queue_tx_urb(hdev, urb);
1958
1959 case HCI_SCODATA_PKT:
1960 if (hci_conn_num(hdev, SCO_LINK) < 1)
1961 return -ENODEV;
1962
1963 urb = alloc_isoc_urb(hdev, skb);
1964 if (IS_ERR(urb))
1965 return PTR_ERR(urb);
1966
1967 hdev->stat.sco_tx++;
1968 return submit_tx_urb(hdev, urb);
1969 }
1970
1971 return -EILSEQ;
1972 }
1973
1974 static int btusb_setup_intel_new(struct hci_dev *hdev)
1975 {
1976 static const u8 reset_param[] = { 0x00, 0x01, 0x00, 0x01,
1977 0x00, 0x08, 0x04, 0x00 };
1978 struct btusb_data *data = hci_get_drvdata(hdev);
1979 struct sk_buff *skb;
1980 struct intel_version ver;
1981 struct intel_boot_params *params;
1982 const struct firmware *fw;
1983 const u8 *fw_ptr;
1984 u32 frag_len;
1985 char fwname[64];
1986 ktime_t calltime, delta, rettime;
1987 unsigned long long duration;
1988 int err;
1989
1990 BT_DBG("%s", hdev->name);
1991
1992 calltime = ktime_get();
1993
1994 /* Read the Intel version information to determine if the device
1995 * is in bootloader mode or if it already has operational firmware
1996 * loaded.
1997 */
1998 err = btintel_read_version(hdev, &ver);
1999 if (err)
2000 return err;
2001
2002 /* The hardware platform number has a fixed value of 0x37 and
2003 * for now only accept this single value.
2004 */
2005 if (ver.hw_platform != 0x37) {
2006 BT_ERR("%s: Unsupported Intel hardware platform (%u)",
2007 hdev->name, ver.hw_platform);
2008 return -EINVAL;
2009 }
2010
2011 /* At the moment the iBT 3.0 hardware variants 0x0b (LnP/SfP)
2012 * and 0x0c (WsP) are supported by this firmware loading method.
2013 *
2014 * This check has been put in place to ensure correct forward
2015 * compatibility options when newer hardware variants come along.
2016 */
2017 if (ver.hw_variant != 0x0b && ver.hw_variant != 0x0c) {
2018 BT_ERR("%s: Unsupported Intel hardware variant (%u)",
2019 hdev->name, ver.hw_variant);
2020 return -EINVAL;
2021 }
2022
2023 btintel_version_info(hdev, &ver);
2024
2025 /* The firmware variant determines if the device is in bootloader
2026 * mode or is running operational firmware. The value 0x06 identifies
2027 * the bootloader and the value 0x23 identifies the operational
2028 * firmware.
2029 *
2030 * When the operational firmware is already present, then only
2031 * the check for valid Bluetooth device address is needed. This
2032 * determines if the device will be added as configured or
2033 * unconfigured controller.
2034 *
2035 * It is not possible to use the Secure Boot Parameters in this
2036 * case since that command is only available in bootloader mode.
2037 */
2038 if (ver.fw_variant == 0x23) {
2039 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2040 btintel_check_bdaddr(hdev);
2041 return 0;
2042 }
2043
2044 /* If the device is not in bootloader mode, then the only possible
2045 * choice is to return an error and abort the device initialization.
2046 */
2047 if (ver.fw_variant != 0x06) {
2048 BT_ERR("%s: Unsupported Intel firmware variant (%u)",
2049 hdev->name, ver.fw_variant);
2050 return -ENODEV;
2051 }
2052
2053 /* Read the secure boot parameters to identify the operating
2054 * details of the bootloader.
2055 */
2056 skb = __hci_cmd_sync(hdev, 0xfc0d, 0, NULL, HCI_INIT_TIMEOUT);
2057 if (IS_ERR(skb)) {
2058 BT_ERR("%s: Reading Intel boot parameters failed (%ld)",
2059 hdev->name, PTR_ERR(skb));
2060 return PTR_ERR(skb);
2061 }
2062
2063 if (skb->len != sizeof(*params)) {
2064 BT_ERR("%s: Intel boot parameters size mismatch", hdev->name);
2065 kfree_skb(skb);
2066 return -EILSEQ;
2067 }
2068
2069 params = (struct intel_boot_params *)skb->data;
2070
2071 BT_INFO("%s: Device revision is %u", hdev->name,
2072 le16_to_cpu(params->dev_revid));
2073
2074 BT_INFO("%s: Secure boot is %s", hdev->name,
2075 params->secure_boot ? "enabled" : "disabled");
2076
2077 BT_INFO("%s: OTP lock is %s", hdev->name,
2078 params->otp_lock ? "enabled" : "disabled");
2079
2080 BT_INFO("%s: API lock is %s", hdev->name,
2081 params->api_lock ? "enabled" : "disabled");
2082
2083 BT_INFO("%s: Debug lock is %s", hdev->name,
2084 params->debug_lock ? "enabled" : "disabled");
2085
2086 BT_INFO("%s: Minimum firmware build %u week %u %u", hdev->name,
2087 params->min_fw_build_nn, params->min_fw_build_cw,
2088 2000 + params->min_fw_build_yy);
2089
2090 /* It is required that every single firmware fragment is acknowledged
2091 * with a command complete event. If the boot parameters indicate
2092 * that this bootloader does not send them, then abort the setup.
2093 */
2094 if (params->limited_cce != 0x00) {
2095 BT_ERR("%s: Unsupported Intel firmware loading method (%u)",
2096 hdev->name, params->limited_cce);
2097 kfree_skb(skb);
2098 return -EINVAL;
2099 }
2100
2101 /* If the OTP has no valid Bluetooth device address, then there will
2102 * also be no valid address for the operational firmware.
2103 */
2104 if (!bacmp(&params->otp_bdaddr, BDADDR_ANY)) {
2105 BT_INFO("%s: No device address configured", hdev->name);
2106 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
2107 }
2108
2109 /* With this Intel bootloader only the hardware variant and device
2110 * revision information are used to select the right firmware.
2111 *
2112 * The firmware filename is ibt-<hw_variant>-<dev_revid>.sfi.
2113 *
2114 * Currently the supported hardware variants are:
2115 * 11 (0x0b) for iBT3.0 (LnP/SfP)
2116 * 12 (0x0c) for iBT3.5 (WsP)
2117 */
2118 snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u.sfi",
2119 le16_to_cpu(ver.hw_variant),
2120 le16_to_cpu(params->dev_revid));
2121
2122 err = request_firmware(&fw, fwname, &hdev->dev);
2123 if (err < 0) {
2124 BT_ERR("%s: Failed to load Intel firmware file (%d)",
2125 hdev->name, err);
2126 kfree_skb(skb);
2127 return err;
2128 }
2129
2130 BT_INFO("%s: Found device firmware: %s", hdev->name, fwname);
2131
2132 /* Save the DDC file name for later use to apply once the firmware
2133 * downloading is done.
2134 */
2135 snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u.ddc",
2136 le16_to_cpu(ver.hw_variant),
2137 le16_to_cpu(params->dev_revid));
2138
2139 kfree_skb(skb);
2140
2141 if (fw->size < 644) {
2142 BT_ERR("%s: Invalid size of firmware file (%zu)",
2143 hdev->name, fw->size);
2144 err = -EBADF;
2145 goto done;
2146 }
2147
2148 set_bit(BTUSB_DOWNLOADING, &data->flags);
2149
2150 /* Start the firmware download transaction with the Init fragment
2151 * represented by the 128 bytes of CSS header.
2152 */
2153 err = btintel_secure_send(hdev, 0x00, 128, fw->data);
2154 if (err < 0) {
2155 BT_ERR("%s: Failed to send firmware header (%d)",
2156 hdev->name, err);
2157 goto done;
2158 }
2159
2160 /* Send the 256 bytes of public key information from the firmware
2161 * as the PKey fragment.
2162 */
2163 err = btintel_secure_send(hdev, 0x03, 256, fw->data + 128);
2164 if (err < 0) {
2165 BT_ERR("%s: Failed to send firmware public key (%d)",
2166 hdev->name, err);
2167 goto done;
2168 }
2169
2170 /* Send the 256 bytes of signature information from the firmware
2171 * as the Sign fragment.
2172 */
2173 err = btintel_secure_send(hdev, 0x02, 256, fw->data + 388);
2174 if (err < 0) {
2175 BT_ERR("%s: Failed to send firmware signature (%d)",
2176 hdev->name, err);
2177 goto done;
2178 }
2179
2180 fw_ptr = fw->data + 644;
2181 frag_len = 0;
2182
2183 while (fw_ptr - fw->data < fw->size) {
2184 struct hci_command_hdr *cmd = (void *)(fw_ptr + frag_len);
2185
2186 frag_len += sizeof(*cmd) + cmd->plen;
2187
2188 /* The parameter length of the secure send command requires
2189 * a 4 byte alignment. It happens so that the firmware file
2190 * contains proper Intel_NOP commands to align the fragments
2191 * as needed.
2192 *
2193 * Send set of commands with 4 byte alignment from the
2194 * firmware data buffer as a single Data fragement.
2195 */
2196 if (!(frag_len % 4)) {
2197 err = btintel_secure_send(hdev, 0x01, frag_len, fw_ptr);
2198 if (err < 0) {
2199 BT_ERR("%s: Failed to send firmware data (%d)",
2200 hdev->name, err);
2201 goto done;
2202 }
2203
2204 fw_ptr += frag_len;
2205 frag_len = 0;
2206 }
2207 }
2208
2209 set_bit(BTUSB_FIRMWARE_LOADED, &data->flags);
2210
2211 BT_INFO("%s: Waiting for firmware download to complete", hdev->name);
2212
2213 /* Before switching the device into operational mode and with that
2214 * booting the loaded firmware, wait for the bootloader notification
2215 * that all fragments have been successfully received.
2216 *
2217 * When the event processing receives the notification, then the
2218 * BTUSB_DOWNLOADING flag will be cleared.
2219 *
2220 * The firmware loading should not take longer than 5 seconds
2221 * and thus just timeout if that happens and fail the setup
2222 * of this device.
2223 */
2224 err = wait_on_bit_timeout(&data->flags, BTUSB_DOWNLOADING,
2225 TASK_INTERRUPTIBLE,
2226 msecs_to_jiffies(5000));
2227 if (err == -EINTR) {
2228 BT_ERR("%s: Firmware loading interrupted", hdev->name);
2229 goto done;
2230 }
2231
2232 if (err) {
2233 BT_ERR("%s: Firmware loading timeout", hdev->name);
2234 err = -ETIMEDOUT;
2235 goto done;
2236 }
2237
2238 if (test_bit(BTUSB_FIRMWARE_FAILED, &data->flags)) {
2239 BT_ERR("%s: Firmware loading failed", hdev->name);
2240 err = -ENOEXEC;
2241 goto done;
2242 }
2243
2244 rettime = ktime_get();
2245 delta = ktime_sub(rettime, calltime);
2246 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2247
2248 BT_INFO("%s: Firmware loaded in %llu usecs", hdev->name, duration);
2249
2250 done:
2251 release_firmware(fw);
2252
2253 if (err < 0)
2254 return err;
2255
2256 calltime = ktime_get();
2257
2258 set_bit(BTUSB_BOOTING, &data->flags);
2259
2260 skb = __hci_cmd_sync(hdev, 0xfc01, sizeof(reset_param), reset_param,
2261 HCI_INIT_TIMEOUT);
2262 if (IS_ERR(skb))
2263 return PTR_ERR(skb);
2264
2265 kfree_skb(skb);
2266
2267 /* The bootloader will not indicate when the device is ready. This
2268 * is done by the operational firmware sending bootup notification.
2269 *
2270 * Booting into operational firmware should not take longer than
2271 * 1 second. However if that happens, then just fail the setup
2272 * since something went wrong.
2273 */
2274 BT_INFO("%s: Waiting for device to boot", hdev->name);
2275
2276 err = wait_on_bit_timeout(&data->flags, BTUSB_BOOTING,
2277 TASK_INTERRUPTIBLE,
2278 msecs_to_jiffies(1000));
2279
2280 if (err == -EINTR) {
2281 BT_ERR("%s: Device boot interrupted", hdev->name);
2282 return -EINTR;
2283 }
2284
2285 if (err) {
2286 BT_ERR("%s: Device boot timeout", hdev->name);
2287 return -ETIMEDOUT;
2288 }
2289
2290 rettime = ktime_get();
2291 delta = ktime_sub(rettime, calltime);
2292 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2293
2294 BT_INFO("%s: Device booted in %llu usecs", hdev->name, duration);
2295
2296 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2297
2298 /* Once the device is running in operational mode, it needs to apply
2299 * the device configuration (DDC) parameters.
2300 *
2301 * The device can work without DDC parameters, so even if it fails
2302 * to load the file, no need to fail the setup.
2303 */
2304 btintel_load_ddc_config(hdev, fwname);
2305
2306 /* Set the event mask for Intel specific vendor events. This enables
2307 * a few extra events that are useful during general operation. It
2308 * does not enable any debugging related events.
2309 *
2310 * The device will function correctly without these events enabled
2311 * and thus no need to fail the setup.
2312 */
2313 btintel_set_event_mask(hdev, false);
2314
2315 return 0;
2316 }
2317
2318 static int btusb_shutdown_intel(struct hci_dev *hdev)
2319 {
2320 struct sk_buff *skb;
2321 long ret;
2322
2323 /* Some platforms have an issue with BT LED when the interface is
2324 * down or BT radio is turned off, which takes 5 seconds to BT LED
2325 * goes off. This command turns off the BT LED immediately.
2326 */
2327 skb = __hci_cmd_sync(hdev, 0xfc3f, 0, NULL, HCI_INIT_TIMEOUT);
2328 if (IS_ERR(skb)) {
2329 ret = PTR_ERR(skb);
2330 BT_ERR("%s: turning off Intel device LED failed (%ld)",
2331 hdev->name, ret);
2332 return ret;
2333 }
2334 kfree_skb(skb);
2335
2336 return 0;
2337 }
2338
2339 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
2340 const bdaddr_t *bdaddr)
2341 {
2342 struct sk_buff *skb;
2343 u8 buf[8];
2344 long ret;
2345
2346 buf[0] = 0xfe;
2347 buf[1] = sizeof(bdaddr_t);
2348 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
2349
2350 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2351 if (IS_ERR(skb)) {
2352 ret = PTR_ERR(skb);
2353 BT_ERR("%s: changing Marvell device address failed (%ld)",
2354 hdev->name, ret);
2355 return ret;
2356 }
2357 kfree_skb(skb);
2358
2359 return 0;
2360 }
2361
2362 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
2363 const bdaddr_t *bdaddr)
2364 {
2365 struct sk_buff *skb;
2366 u8 buf[10];
2367 long ret;
2368
2369 buf[0] = 0x01;
2370 buf[1] = 0x01;
2371 buf[2] = 0x00;
2372 buf[3] = sizeof(bdaddr_t);
2373 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
2374
2375 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2376 if (IS_ERR(skb)) {
2377 ret = PTR_ERR(skb);
2378 BT_ERR("%s: Change address command failed (%ld)",
2379 hdev->name, ret);
2380 return ret;
2381 }
2382 kfree_skb(skb);
2383
2384 return 0;
2385 }
2386
2387 #define QCA_DFU_PACKET_LEN 4096
2388
2389 #define QCA_GET_TARGET_VERSION 0x09
2390 #define QCA_CHECK_STATUS 0x05
2391 #define QCA_DFU_DOWNLOAD 0x01
2392
2393 #define QCA_SYSCFG_UPDATED 0x40
2394 #define QCA_PATCH_UPDATED 0x80
2395 #define QCA_DFU_TIMEOUT 3000
2396
2397 struct qca_version {
2398 __le32 rom_version;
2399 __le32 patch_version;
2400 __le32 ram_version;
2401 __le32 ref_clock;
2402 __u8 reserved[4];
2403 } __packed;
2404
2405 struct qca_rampatch_version {
2406 __le16 rom_version;
2407 __le16 patch_version;
2408 } __packed;
2409
2410 struct qca_device_info {
2411 u32 rom_version;
2412 u8 rampatch_hdr; /* length of header in rampatch */
2413 u8 nvm_hdr; /* length of header in NVM */
2414 u8 ver_offset; /* offset of version structure in rampatch */
2415 };
2416
2417 static const struct qca_device_info qca_devices_table[] = {
2418 { 0x00000100, 20, 4, 10 }, /* Rome 1.0 */
2419 { 0x00000101, 20, 4, 10 }, /* Rome 1.1 */
2420 { 0x00000200, 28, 4, 18 }, /* Rome 2.0 */
2421 { 0x00000201, 28, 4, 18 }, /* Rome 2.1 */
2422 { 0x00000300, 28, 4, 18 }, /* Rome 3.0 */
2423 { 0x00000302, 28, 4, 18 }, /* Rome 3.2 */
2424 };
2425
2426 static int btusb_qca_send_vendor_req(struct hci_dev *hdev, u8 request,
2427 void *data, u16 size)
2428 {
2429 struct btusb_data *btdata = hci_get_drvdata(hdev);
2430 struct usb_device *udev = btdata->udev;
2431 int pipe, err;
2432 u8 *buf;
2433
2434 buf = kmalloc(size, GFP_KERNEL);
2435 if (!buf)
2436 return -ENOMEM;
2437
2438 /* Found some of USB hosts have IOT issues with ours so that we should
2439 * not wait until HCI layer is ready.
2440 */
2441 pipe = usb_rcvctrlpipe(udev, 0);
2442 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
2443 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
2444 if (err < 0) {
2445 BT_ERR("%s: Failed to access otp area (%d)", hdev->name, err);
2446 goto done;
2447 }
2448
2449 memcpy(data, buf, size);
2450
2451 done:
2452 kfree(buf);
2453
2454 return err;
2455 }
2456
2457 static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
2458 const struct firmware *firmware,
2459 size_t hdr_size)
2460 {
2461 struct btusb_data *btdata = hci_get_drvdata(hdev);
2462 struct usb_device *udev = btdata->udev;
2463 size_t count, size, sent = 0;
2464 int pipe, len, err;
2465 u8 *buf;
2466
2467 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
2468 if (!buf)
2469 return -ENOMEM;
2470
2471 count = firmware->size;
2472
2473 size = min_t(size_t, count, hdr_size);
2474 memcpy(buf, firmware->data, size);
2475
2476 /* USB patches should go down to controller through USB path
2477 * because binary format fits to go down through USB channel.
2478 * USB control path is for patching headers and USB bulk is for
2479 * patch body.
2480 */
2481 pipe = usb_sndctrlpipe(udev, 0);
2482 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
2483 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
2484 if (err < 0) {
2485 BT_ERR("%s: Failed to send headers (%d)", hdev->name, err);
2486 goto done;
2487 }
2488
2489 sent += size;
2490 count -= size;
2491
2492 while (count) {
2493 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
2494
2495 memcpy(buf, firmware->data + sent, size);
2496
2497 pipe = usb_sndbulkpipe(udev, 0x02);
2498 err = usb_bulk_msg(udev, pipe, buf, size, &len,
2499 QCA_DFU_TIMEOUT);
2500 if (err < 0) {
2501 BT_ERR("%s: Failed to send body at %zd of %zd (%d)",
2502 hdev->name, sent, firmware->size, err);
2503 break;
2504 }
2505
2506 if (size != len) {
2507 BT_ERR("%s: Failed to get bulk buffer", hdev->name);
2508 err = -EILSEQ;
2509 break;
2510 }
2511
2512 sent += size;
2513 count -= size;
2514 }
2515
2516 done:
2517 kfree(buf);
2518 return err;
2519 }
2520
2521 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
2522 struct qca_version *ver,
2523 const struct qca_device_info *info)
2524 {
2525 struct qca_rampatch_version *rver;
2526 const struct firmware *fw;
2527 u32 ver_rom, ver_patch;
2528 u16 rver_rom, rver_patch;
2529 char fwname[64];
2530 int err;
2531
2532 ver_rom = le32_to_cpu(ver->rom_version);
2533 ver_patch = le32_to_cpu(ver->patch_version);
2534
2535 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom);
2536
2537 err = request_firmware(&fw, fwname, &hdev->dev);
2538 if (err) {
2539 BT_ERR("%s: failed to request rampatch file: %s (%d)",
2540 hdev->name, fwname, err);
2541 return err;
2542 }
2543
2544 BT_INFO("%s: using rampatch file: %s", hdev->name, fwname);
2545
2546 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
2547 rver_rom = le16_to_cpu(rver->rom_version);
2548 rver_patch = le16_to_cpu(rver->patch_version);
2549
2550 BT_INFO("%s: QCA: patch rome 0x%x build 0x%x, firmware rome 0x%x "
2551 "build 0x%x", hdev->name, rver_rom, rver_patch, ver_rom,
2552 ver_patch);
2553
2554 if (rver_rom != ver_rom || rver_patch <= ver_patch) {
2555 BT_ERR("%s: rampatch file version did not match with firmware",
2556 hdev->name);
2557 err = -EINVAL;
2558 goto done;
2559 }
2560
2561 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
2562
2563 done:
2564 release_firmware(fw);
2565
2566 return err;
2567 }
2568
2569 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
2570 struct qca_version *ver,
2571 const struct qca_device_info *info)
2572 {
2573 const struct firmware *fw;
2574 char fwname[64];
2575 int err;
2576
2577 snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin",
2578 le32_to_cpu(ver->rom_version));
2579
2580 err = request_firmware(&fw, fwname, &hdev->dev);
2581 if (err) {
2582 BT_ERR("%s: failed to request NVM file: %s (%d)",
2583 hdev->name, fwname, err);
2584 return err;
2585 }
2586
2587 BT_INFO("%s: using NVM file: %s", hdev->name, fwname);
2588
2589 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
2590
2591 release_firmware(fw);
2592
2593 return err;
2594 }
2595
2596 static int btusb_setup_qca(struct hci_dev *hdev)
2597 {
2598 const struct qca_device_info *info = NULL;
2599 struct qca_version ver;
2600 u32 ver_rom;
2601 u8 status;
2602 int i, err;
2603
2604 err = btusb_qca_send_vendor_req(hdev, QCA_GET_TARGET_VERSION, &ver,
2605 sizeof(ver));
2606 if (err < 0)
2607 return err;
2608
2609 ver_rom = le32_to_cpu(ver.rom_version);
2610 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
2611 if (ver_rom == qca_devices_table[i].rom_version)
2612 info = &qca_devices_table[i];
2613 }
2614 if (!info) {
2615 BT_ERR("%s: don't support firmware rome 0x%x", hdev->name,
2616 ver_rom);
2617 return -ENODEV;
2618 }
2619
2620 err = btusb_qca_send_vendor_req(hdev, QCA_CHECK_STATUS, &status,
2621 sizeof(status));
2622 if (err < 0)
2623 return err;
2624
2625 if (!(status & QCA_PATCH_UPDATED)) {
2626 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
2627 if (err < 0)
2628 return err;
2629 }
2630
2631 if (!(status & QCA_SYSCFG_UPDATED)) {
2632 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
2633 if (err < 0)
2634 return err;
2635 }
2636
2637 return 0;
2638 }
2639
2640 #ifdef CONFIG_BT_HCIBTUSB_BCM
2641 static inline int __set_diag_interface(struct hci_dev *hdev)
2642 {
2643 struct btusb_data *data = hci_get_drvdata(hdev);
2644 struct usb_interface *intf = data->diag;
2645 int i;
2646
2647 if (!data->diag)
2648 return -ENODEV;
2649
2650 data->diag_tx_ep = NULL;
2651 data->diag_rx_ep = NULL;
2652
2653 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2654 struct usb_endpoint_descriptor *ep_desc;
2655
2656 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2657
2658 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
2659 data->diag_tx_ep = ep_desc;
2660 continue;
2661 }
2662
2663 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
2664 data->diag_rx_ep = ep_desc;
2665 continue;
2666 }
2667 }
2668
2669 if (!data->diag_tx_ep || !data->diag_rx_ep) {
2670 BT_ERR("%s invalid diagnostic descriptors", hdev->name);
2671 return -ENODEV;
2672 }
2673
2674 return 0;
2675 }
2676
2677 static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable)
2678 {
2679 struct btusb_data *data = hci_get_drvdata(hdev);
2680 struct sk_buff *skb;
2681 struct urb *urb;
2682 unsigned int pipe;
2683
2684 if (!data->diag_tx_ep)
2685 return ERR_PTR(-ENODEV);
2686
2687 urb = usb_alloc_urb(0, GFP_KERNEL);
2688 if (!urb)
2689 return ERR_PTR(-ENOMEM);
2690
2691 skb = bt_skb_alloc(2, GFP_KERNEL);
2692 if (!skb) {
2693 usb_free_urb(urb);
2694 return ERR_PTR(-ENOMEM);
2695 }
2696
2697 *skb_put(skb, 1) = 0xf0;
2698 *skb_put(skb, 1) = enable;
2699
2700 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress);
2701
2702 usb_fill_bulk_urb(urb, data->udev, pipe,
2703 skb->data, skb->len, btusb_tx_complete, skb);
2704
2705 skb->dev = (void *)hdev;
2706
2707 return urb;
2708 }
2709
2710 static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable)
2711 {
2712 struct btusb_data *data = hci_get_drvdata(hdev);
2713 struct urb *urb;
2714
2715 if (!data->diag)
2716 return -ENODEV;
2717
2718 if (!test_bit(HCI_RUNNING, &hdev->flags))
2719 return -ENETDOWN;
2720
2721 urb = alloc_diag_urb(hdev, enable);
2722 if (IS_ERR(urb))
2723 return PTR_ERR(urb);
2724
2725 return submit_or_queue_tx_urb(hdev, urb);
2726 }
2727 #endif
2728
2729 static int btusb_probe(struct usb_interface *intf,
2730 const struct usb_device_id *id)
2731 {
2732 struct usb_endpoint_descriptor *ep_desc;
2733 struct btusb_data *data;
2734 struct hci_dev *hdev;
2735 unsigned ifnum_base;
2736 int i, err;
2737
2738 BT_DBG("intf %p id %p", intf, id);
2739
2740 /* interface numbers are hardcoded in the spec */
2741 if (intf->cur_altsetting->desc.bInterfaceNumber != 0) {
2742 if (!(id->driver_info & BTUSB_IFNUM_2))
2743 return -ENODEV;
2744 if (intf->cur_altsetting->desc.bInterfaceNumber != 2)
2745 return -ENODEV;
2746 }
2747
2748 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber;
2749
2750 if (!id->driver_info) {
2751 const struct usb_device_id *match;
2752
2753 match = usb_match_id(intf, blacklist_table);
2754 if (match)
2755 id = match;
2756 }
2757
2758 if (id->driver_info == BTUSB_IGNORE)
2759 return -ENODEV;
2760
2761 if (id->driver_info & BTUSB_ATH3012) {
2762 struct usb_device *udev = interface_to_usbdev(intf);
2763
2764 /* Old firmware would otherwise let ath3k driver load
2765 * patch and sysconfig files */
2766 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
2767 return -ENODEV;
2768 }
2769
2770 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
2771 if (!data)
2772 return -ENOMEM;
2773
2774 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2775 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2776
2777 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
2778 data->intr_ep = ep_desc;
2779 continue;
2780 }
2781
2782 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
2783 data->bulk_tx_ep = ep_desc;
2784 continue;
2785 }
2786
2787 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
2788 data->bulk_rx_ep = ep_desc;
2789 continue;
2790 }
2791 }
2792
2793 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
2794 return -ENODEV;
2795
2796 if (id->driver_info & BTUSB_AMP) {
2797 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
2798 data->cmdreq = 0x2b;
2799 } else {
2800 data->cmdreq_type = USB_TYPE_CLASS;
2801 data->cmdreq = 0x00;
2802 }
2803
2804 data->udev = interface_to_usbdev(intf);
2805 data->intf = intf;
2806
2807 INIT_WORK(&data->work, btusb_work);
2808 INIT_WORK(&data->waker, btusb_waker);
2809 init_usb_anchor(&data->deferred);
2810 init_usb_anchor(&data->tx_anchor);
2811 spin_lock_init(&data->txlock);
2812
2813 init_usb_anchor(&data->intr_anchor);
2814 init_usb_anchor(&data->bulk_anchor);
2815 init_usb_anchor(&data->isoc_anchor);
2816 init_usb_anchor(&data->diag_anchor);
2817 spin_lock_init(&data->rxlock);
2818
2819 if (id->driver_info & BTUSB_INTEL_NEW) {
2820 data->recv_event = btusb_recv_event_intel;
2821 data->recv_bulk = btusb_recv_bulk_intel;
2822 set_bit(BTUSB_BOOTLOADER, &data->flags);
2823 } else {
2824 data->recv_event = hci_recv_frame;
2825 data->recv_bulk = btusb_recv_bulk;
2826 }
2827
2828 hdev = hci_alloc_dev();
2829 if (!hdev)
2830 return -ENOMEM;
2831
2832 hdev->bus = HCI_USB;
2833 hci_set_drvdata(hdev, data);
2834
2835 if (id->driver_info & BTUSB_AMP)
2836 hdev->dev_type = HCI_AMP;
2837 else
2838 hdev->dev_type = HCI_PRIMARY;
2839
2840 data->hdev = hdev;
2841
2842 SET_HCIDEV_DEV(hdev, &intf->dev);
2843
2844 hdev->open = btusb_open;
2845 hdev->close = btusb_close;
2846 hdev->flush = btusb_flush;
2847 hdev->send = btusb_send_frame;
2848 hdev->notify = btusb_notify;
2849
2850 if (id->driver_info & BTUSB_CW6622)
2851 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
2852
2853 if (id->driver_info & BTUSB_BCM2045)
2854 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
2855
2856 if (id->driver_info & BTUSB_BCM92035)
2857 hdev->setup = btusb_setup_bcm92035;
2858
2859 #ifdef CONFIG_BT_HCIBTUSB_BCM
2860 if (id->driver_info & BTUSB_BCM_PATCHRAM) {
2861 hdev->manufacturer = 15;
2862 hdev->setup = btbcm_setup_patchram;
2863 hdev->set_diag = btusb_bcm_set_diag;
2864 hdev->set_bdaddr = btbcm_set_bdaddr;
2865
2866 /* Broadcom LM_DIAG Interface numbers are hardcoded */
2867 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
2868 }
2869
2870 if (id->driver_info & BTUSB_BCM_APPLE) {
2871 hdev->manufacturer = 15;
2872 hdev->setup = btbcm_setup_apple;
2873 hdev->set_diag = btusb_bcm_set_diag;
2874
2875 /* Broadcom LM_DIAG Interface numbers are hardcoded */
2876 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
2877 }
2878 #endif
2879
2880 if (id->driver_info & BTUSB_INTEL) {
2881 hdev->manufacturer = 2;
2882 hdev->setup = btusb_setup_intel;
2883 hdev->shutdown = btusb_shutdown_intel;
2884 hdev->set_diag = btintel_set_diag_mfg;
2885 hdev->set_bdaddr = btintel_set_bdaddr;
2886 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
2887 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
2888 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks);
2889 }
2890
2891 if (id->driver_info & BTUSB_INTEL_NEW) {
2892 hdev->manufacturer = 2;
2893 hdev->send = btusb_send_frame_intel;
2894 hdev->setup = btusb_setup_intel_new;
2895 hdev->hw_error = btintel_hw_error;
2896 hdev->set_diag = btintel_set_diag;
2897 hdev->set_bdaddr = btintel_set_bdaddr;
2898 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
2899 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks);
2900 }
2901
2902 if (id->driver_info & BTUSB_MARVELL)
2903 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
2904
2905 if (id->driver_info & BTUSB_SWAVE) {
2906 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
2907 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
2908 }
2909
2910 if (id->driver_info & BTUSB_INTEL_BOOT) {
2911 hdev->manufacturer = 2;
2912 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
2913 }
2914
2915 if (id->driver_info & BTUSB_ATH3012) {
2916 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
2917 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
2918 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
2919 }
2920
2921 if (id->driver_info & BTUSB_QCA_ROME) {
2922 data->setup_on_usb = btusb_setup_qca;
2923 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
2924 }
2925
2926 #ifdef CONFIG_BT_HCIBTUSB_RTL
2927 if (id->driver_info & BTUSB_REALTEK) {
2928 hdev->setup = btrtl_setup_realtek;
2929
2930 /* Realtek devices lose their updated firmware over suspend,
2931 * but the USB hub doesn't notice any status change.
2932 * Explicitly request a device reset on resume.
2933 */
2934 set_bit(BTUSB_RESET_RESUME, &data->flags);
2935 }
2936 #endif
2937
2938 if (id->driver_info & BTUSB_AMP) {
2939 /* AMP controllers do not support SCO packets */
2940 data->isoc = NULL;
2941 } else {
2942 /* Interface orders are hardcoded in the specification */
2943 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1);
2944 }
2945
2946 if (!reset)
2947 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
2948
2949 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
2950 if (!disable_scofix)
2951 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
2952 }
2953
2954 if (id->driver_info & BTUSB_BROKEN_ISOC)
2955 data->isoc = NULL;
2956
2957 if (id->driver_info & BTUSB_DIGIANSWER) {
2958 data->cmdreq_type = USB_TYPE_VENDOR;
2959 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
2960 }
2961
2962 if (id->driver_info & BTUSB_CSR) {
2963 struct usb_device *udev = data->udev;
2964 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
2965
2966 /* Old firmware would otherwise execute USB reset */
2967 if (bcdDevice < 0x117)
2968 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
2969
2970 /* Fake CSR devices with broken commands */
2971 if (bcdDevice <= 0x100 || bcdDevice == 0x134)
2972 hdev->setup = btusb_setup_csr;
2973
2974 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
2975 }
2976
2977 if (id->driver_info & BTUSB_SNIFFER) {
2978 struct usb_device *udev = data->udev;
2979
2980 /* New sniffer firmware has crippled HCI interface */
2981 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
2982 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
2983 }
2984
2985 if (id->driver_info & BTUSB_INTEL_BOOT) {
2986 /* A bug in the bootloader causes that interrupt interface is
2987 * only enabled after receiving SetInterface(0, AltSetting=0).
2988 */
2989 err = usb_set_interface(data->udev, 0, 0);
2990 if (err < 0) {
2991 BT_ERR("failed to set interface 0, alt 0 %d", err);
2992 hci_free_dev(hdev);
2993 return err;
2994 }
2995 }
2996
2997 if (data->isoc) {
2998 err = usb_driver_claim_interface(&btusb_driver,
2999 data->isoc, data);
3000 if (err < 0) {
3001 hci_free_dev(hdev);
3002 return err;
3003 }
3004 }
3005
3006 #ifdef CONFIG_BT_HCIBTUSB_BCM
3007 if (data->diag) {
3008 if (!usb_driver_claim_interface(&btusb_driver,
3009 data->diag, data))
3010 __set_diag_interface(hdev);
3011 else
3012 data->diag = NULL;
3013 }
3014 #endif
3015
3016 err = hci_register_dev(hdev);
3017 if (err < 0) {
3018 hci_free_dev(hdev);
3019 return err;
3020 }
3021
3022 usb_set_intfdata(intf, data);
3023
3024 return 0;
3025 }
3026
3027 static void btusb_disconnect(struct usb_interface *intf)
3028 {
3029 struct btusb_data *data = usb_get_intfdata(intf);
3030 struct hci_dev *hdev;
3031
3032 BT_DBG("intf %p", intf);
3033
3034 if (!data)
3035 return;
3036
3037 hdev = data->hdev;
3038 usb_set_intfdata(data->intf, NULL);
3039
3040 if (data->isoc)
3041 usb_set_intfdata(data->isoc, NULL);
3042
3043 if (data->diag)
3044 usb_set_intfdata(data->diag, NULL);
3045
3046 hci_unregister_dev(hdev);
3047
3048 if (intf == data->intf) {
3049 if (data->isoc)
3050 usb_driver_release_interface(&btusb_driver, data->isoc);
3051 if (data->diag)
3052 usb_driver_release_interface(&btusb_driver, data->diag);
3053 } else if (intf == data->isoc) {
3054 if (data->diag)
3055 usb_driver_release_interface(&btusb_driver, data->diag);
3056 usb_driver_release_interface(&btusb_driver, data->intf);
3057 } else if (intf == data->diag) {
3058 usb_driver_release_interface(&btusb_driver, data->intf);
3059 if (data->isoc)
3060 usb_driver_release_interface(&btusb_driver, data->isoc);
3061 }
3062
3063 hci_free_dev(hdev);
3064 }
3065
3066 #ifdef CONFIG_PM
3067 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
3068 {
3069 struct btusb_data *data = usb_get_intfdata(intf);
3070
3071 BT_DBG("intf %p", intf);
3072
3073 if (data->suspend_count++)
3074 return 0;
3075
3076 spin_lock_irq(&data->txlock);
3077 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
3078 set_bit(BTUSB_SUSPENDING, &data->flags);
3079 spin_unlock_irq(&data->txlock);
3080 } else {
3081 spin_unlock_irq(&data->txlock);
3082 data->suspend_count--;
3083 return -EBUSY;
3084 }
3085
3086 cancel_work_sync(&data->work);
3087
3088 btusb_stop_traffic(data);
3089 usb_kill_anchored_urbs(&data->tx_anchor);
3090
3091 /* Optionally request a device reset on resume, but only when
3092 * wakeups are disabled. If wakeups are enabled we assume the
3093 * device will stay powered up throughout suspend.
3094 */
3095 if (test_bit(BTUSB_RESET_RESUME, &data->flags) &&
3096 !device_may_wakeup(&data->udev->dev))
3097 data->udev->reset_resume = 1;
3098
3099 return 0;
3100 }
3101
3102 static void play_deferred(struct btusb_data *data)
3103 {
3104 struct urb *urb;
3105 int err;
3106
3107 while ((urb = usb_get_from_anchor(&data->deferred))) {
3108 err = usb_submit_urb(urb, GFP_ATOMIC);
3109 if (err < 0)
3110 break;
3111
3112 data->tx_in_flight++;
3113 }
3114 usb_scuttle_anchored_urbs(&data->deferred);
3115 }
3116
3117 static int btusb_resume(struct usb_interface *intf)
3118 {
3119 struct btusb_data *data = usb_get_intfdata(intf);
3120 struct hci_dev *hdev = data->hdev;
3121 int err = 0;
3122
3123 BT_DBG("intf %p", intf);
3124
3125 if (--data->suspend_count)
3126 return 0;
3127
3128 if (!test_bit(HCI_RUNNING, &hdev->flags))
3129 goto done;
3130
3131 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
3132 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
3133 if (err < 0) {
3134 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
3135 goto failed;
3136 }
3137 }
3138
3139 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
3140 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
3141 if (err < 0) {
3142 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
3143 goto failed;
3144 }
3145
3146 btusb_submit_bulk_urb(hdev, GFP_NOIO);
3147 }
3148
3149 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
3150 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
3151 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
3152 else
3153 btusb_submit_isoc_urb(hdev, GFP_NOIO);
3154 }
3155
3156 spin_lock_irq(&data->txlock);
3157 play_deferred(data);
3158 clear_bit(BTUSB_SUSPENDING, &data->flags);
3159 spin_unlock_irq(&data->txlock);
3160 schedule_work(&data->work);
3161
3162 return 0;
3163
3164 failed:
3165 usb_scuttle_anchored_urbs(&data->deferred);
3166 done:
3167 spin_lock_irq(&data->txlock);
3168 clear_bit(BTUSB_SUSPENDING, &data->flags);
3169 spin_unlock_irq(&data->txlock);
3170
3171 return err;
3172 }
3173 #endif
3174
3175 static struct usb_driver btusb_driver = {
3176 .name = "btusb",
3177 .probe = btusb_probe,
3178 .disconnect = btusb_disconnect,
3179 #ifdef CONFIG_PM
3180 .suspend = btusb_suspend,
3181 .resume = btusb_resume,
3182 #endif
3183 .id_table = btusb_table,
3184 .supports_autosuspend = 1,
3185 .disable_hub_initiated_lpm = 1,
3186 };
3187
3188 module_usb_driver(btusb_driver);
3189
3190 module_param(disable_scofix, bool, 0644);
3191 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
3192
3193 module_param(force_scofix, bool, 0644);
3194 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
3195
3196 module_param(reset, bool, 0644);
3197 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
3198
3199 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
3200 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
3201 MODULE_VERSION(VERSION);
3202 MODULE_LICENSE("GPL");
Linux kernel - Deliverables
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