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