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Bluetooth: Add a new 04ca:3011 QCA_ROME device
[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 { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 },
241
242 /* Atheros AR5BBU12 with sflash firmware */
243 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
244
245 /* Atheros AR5BBU12 with sflash firmware */
246 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
247 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
248
249 /* QCA ROME chipset */
250 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME },
251 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME },
252 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME },
253 { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME },
254 { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME },
255
256 /* Broadcom BCM2035 */
257 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
258 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
259 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
260
261 /* Broadcom BCM2045 */
262 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
263 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
264
265 /* IBM/Lenovo ThinkPad with Broadcom chip */
266 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
267 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
268
269 /* HP laptop with Broadcom chip */
270 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
271
272 /* Dell laptop with Broadcom chip */
273 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
274
275 /* Dell Wireless 370 and 410 devices */
276 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
277 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
278
279 /* Belkin F8T012 and F8T013 devices */
280 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
281 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
282
283 /* Asus WL-BTD202 device */
284 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
285
286 /* Kensington Bluetooth USB adapter */
287 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
288
289 /* RTX Telecom based adapters with buggy SCO support */
290 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
291 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
292
293 /* CONWISE Technology based adapters with buggy SCO support */
294 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
295
296 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
297 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE },
298
299 /* Digianswer devices */
300 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
301 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
302
303 /* CSR BlueCore Bluetooth Sniffer */
304 { USB_DEVICE(0x0a12, 0x0002),
305 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
306
307 /* Frontline ComProbe Bluetooth Sniffer */
308 { USB_DEVICE(0x16d3, 0x0002),
309 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
310
311 /* Marvell Bluetooth devices */
312 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
313 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
314
315 /* Intel Bluetooth devices */
316 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
317 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
318 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL },
319 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_NEW },
320 { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL },
321
322 /* Other Intel Bluetooth devices */
323 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
324 .driver_info = BTUSB_IGNORE },
325
326 /* Realtek Bluetooth devices */
327 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
328 .driver_info = BTUSB_REALTEK },
329
330 /* Additional Realtek 8723AE Bluetooth devices */
331 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
332 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
333
334 /* Additional Realtek 8723BE Bluetooth devices */
335 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
336 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
337 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
338 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
339 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
340
341 /* Additional Realtek 8821AE Bluetooth devices */
342 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
343 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
344 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
345 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
346 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
347
348 /* Silicon Wave based devices */
349 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE },
350
351 { } /* Terminating entry */
352 };
353
354 #define BTUSB_MAX_ISOC_FRAMES 10
355
356 #define BTUSB_INTR_RUNNING 0
357 #define BTUSB_BULK_RUNNING 1
358 #define BTUSB_ISOC_RUNNING 2
359 #define BTUSB_SUSPENDING 3
360 #define BTUSB_DID_ISO_RESUME 4
361 #define BTUSB_BOOTLOADER 5
362 #define BTUSB_DOWNLOADING 6
363 #define BTUSB_FIRMWARE_LOADED 7
364 #define BTUSB_FIRMWARE_FAILED 8
365 #define BTUSB_BOOTING 9
366 #define BTUSB_RESET_RESUME 10
367 #define BTUSB_DIAG_RUNNING 11
368
369 struct btusb_data {
370 struct hci_dev *hdev;
371 struct usb_device *udev;
372 struct usb_interface *intf;
373 struct usb_interface *isoc;
374 struct usb_interface *diag;
375
376 unsigned long flags;
377
378 struct work_struct work;
379 struct work_struct waker;
380
381 struct usb_anchor deferred;
382 struct usb_anchor tx_anchor;
383 int tx_in_flight;
384 spinlock_t txlock;
385
386 struct usb_anchor intr_anchor;
387 struct usb_anchor bulk_anchor;
388 struct usb_anchor isoc_anchor;
389 struct usb_anchor diag_anchor;
390 spinlock_t rxlock;
391
392 struct sk_buff *evt_skb;
393 struct sk_buff *acl_skb;
394 struct sk_buff *sco_skb;
395
396 struct usb_endpoint_descriptor *intr_ep;
397 struct usb_endpoint_descriptor *bulk_tx_ep;
398 struct usb_endpoint_descriptor *bulk_rx_ep;
399 struct usb_endpoint_descriptor *isoc_tx_ep;
400 struct usb_endpoint_descriptor *isoc_rx_ep;
401 struct usb_endpoint_descriptor *diag_tx_ep;
402 struct usb_endpoint_descriptor *diag_rx_ep;
403
404 __u8 cmdreq_type;
405 __u8 cmdreq;
406
407 unsigned int sco_num;
408 int isoc_altsetting;
409 int suspend_count;
410
411 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
412 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
413
414 int (*setup_on_usb)(struct hci_dev *hdev);
415 };
416
417 static inline void btusb_free_frags(struct btusb_data *data)
418 {
419 unsigned long flags;
420
421 spin_lock_irqsave(&data->rxlock, flags);
422
423 kfree_skb(data->evt_skb);
424 data->evt_skb = NULL;
425
426 kfree_skb(data->acl_skb);
427 data->acl_skb = NULL;
428
429 kfree_skb(data->sco_skb);
430 data->sco_skb = NULL;
431
432 spin_unlock_irqrestore(&data->rxlock, flags);
433 }
434
435 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
436 {
437 struct sk_buff *skb;
438 int err = 0;
439
440 spin_lock(&data->rxlock);
441 skb = data->evt_skb;
442
443 while (count) {
444 int len;
445
446 if (!skb) {
447 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
448 if (!skb) {
449 err = -ENOMEM;
450 break;
451 }
452
453 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
454 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE;
455 }
456
457 len = min_t(uint, hci_skb_expect(skb), count);
458 memcpy(skb_put(skb, len), buffer, len);
459
460 count -= len;
461 buffer += len;
462 hci_skb_expect(skb) -= len;
463
464 if (skb->len == HCI_EVENT_HDR_SIZE) {
465 /* Complete event header */
466 hci_skb_expect(skb) = hci_event_hdr(skb)->plen;
467
468 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
469 kfree_skb(skb);
470 skb = NULL;
471
472 err = -EILSEQ;
473 break;
474 }
475 }
476
477 if (!hci_skb_expect(skb)) {
478 /* Complete frame */
479 data->recv_event(data->hdev, skb);
480 skb = NULL;
481 }
482 }
483
484 data->evt_skb = skb;
485 spin_unlock(&data->rxlock);
486
487 return err;
488 }
489
490 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
491 {
492 struct sk_buff *skb;
493 int err = 0;
494
495 spin_lock(&data->rxlock);
496 skb = data->acl_skb;
497
498 while (count) {
499 int len;
500
501 if (!skb) {
502 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
503 if (!skb) {
504 err = -ENOMEM;
505 break;
506 }
507
508 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT;
509 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE;
510 }
511
512 len = min_t(uint, hci_skb_expect(skb), count);
513 memcpy(skb_put(skb, len), buffer, len);
514
515 count -= len;
516 buffer += len;
517 hci_skb_expect(skb) -= len;
518
519 if (skb->len == HCI_ACL_HDR_SIZE) {
520 __le16 dlen = hci_acl_hdr(skb)->dlen;
521
522 /* Complete ACL header */
523 hci_skb_expect(skb) = __le16_to_cpu(dlen);
524
525 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
526 kfree_skb(skb);
527 skb = NULL;
528
529 err = -EILSEQ;
530 break;
531 }
532 }
533
534 if (!hci_skb_expect(skb)) {
535 /* Complete frame */
536 hci_recv_frame(data->hdev, skb);
537 skb = NULL;
538 }
539 }
540
541 data->acl_skb = skb;
542 spin_unlock(&data->rxlock);
543
544 return err;
545 }
546
547 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
548 {
549 struct sk_buff *skb;
550 int err = 0;
551
552 spin_lock(&data->rxlock);
553 skb = data->sco_skb;
554
555 while (count) {
556 int len;
557
558 if (!skb) {
559 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
560 if (!skb) {
561 err = -ENOMEM;
562 break;
563 }
564
565 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT;
566 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE;
567 }
568
569 len = min_t(uint, hci_skb_expect(skb), count);
570 memcpy(skb_put(skb, len), buffer, len);
571
572 count -= len;
573 buffer += len;
574 hci_skb_expect(skb) -= len;
575
576 if (skb->len == HCI_SCO_HDR_SIZE) {
577 /* Complete SCO header */
578 hci_skb_expect(skb) = hci_sco_hdr(skb)->dlen;
579
580 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
581 kfree_skb(skb);
582 skb = NULL;
583
584 err = -EILSEQ;
585 break;
586 }
587 }
588
589 if (!hci_skb_expect(skb)) {
590 /* Complete frame */
591 hci_recv_frame(data->hdev, skb);
592 skb = NULL;
593 }
594 }
595
596 data->sco_skb = skb;
597 spin_unlock(&data->rxlock);
598
599 return err;
600 }
601
602 static void btusb_intr_complete(struct urb *urb)
603 {
604 struct hci_dev *hdev = urb->context;
605 struct btusb_data *data = hci_get_drvdata(hdev);
606 int err;
607
608 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
609 urb->actual_length);
610
611 if (!test_bit(HCI_RUNNING, &hdev->flags))
612 return;
613
614 if (urb->status == 0) {
615 hdev->stat.byte_rx += urb->actual_length;
616
617 if (btusb_recv_intr(data, urb->transfer_buffer,
618 urb->actual_length) < 0) {
619 BT_ERR("%s corrupted event packet", hdev->name);
620 hdev->stat.err_rx++;
621 }
622 } else if (urb->status == -ENOENT) {
623 /* Avoid suspend failed when usb_kill_urb */
624 return;
625 }
626
627 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
628 return;
629
630 usb_mark_last_busy(data->udev);
631 usb_anchor_urb(urb, &data->intr_anchor);
632
633 err = usb_submit_urb(urb, GFP_ATOMIC);
634 if (err < 0) {
635 /* -EPERM: urb is being killed;
636 * -ENODEV: device got disconnected */
637 if (err != -EPERM && err != -ENODEV)
638 BT_ERR("%s urb %p failed to resubmit (%d)",
639 hdev->name, urb, -err);
640 usb_unanchor_urb(urb);
641 }
642 }
643
644 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
645 {
646 struct btusb_data *data = hci_get_drvdata(hdev);
647 struct urb *urb;
648 unsigned char *buf;
649 unsigned int pipe;
650 int err, size;
651
652 BT_DBG("%s", hdev->name);
653
654 if (!data->intr_ep)
655 return -ENODEV;
656
657 urb = usb_alloc_urb(0, mem_flags);
658 if (!urb)
659 return -ENOMEM;
660
661 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
662
663 buf = kmalloc(size, mem_flags);
664 if (!buf) {
665 usb_free_urb(urb);
666 return -ENOMEM;
667 }
668
669 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
670
671 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
672 btusb_intr_complete, hdev, data->intr_ep->bInterval);
673
674 urb->transfer_flags |= URB_FREE_BUFFER;
675
676 usb_anchor_urb(urb, &data->intr_anchor);
677
678 err = usb_submit_urb(urb, mem_flags);
679 if (err < 0) {
680 if (err != -EPERM && err != -ENODEV)
681 BT_ERR("%s urb %p submission failed (%d)",
682 hdev->name, urb, -err);
683 usb_unanchor_urb(urb);
684 }
685
686 usb_free_urb(urb);
687
688 return err;
689 }
690
691 static void btusb_bulk_complete(struct urb *urb)
692 {
693 struct hci_dev *hdev = urb->context;
694 struct btusb_data *data = hci_get_drvdata(hdev);
695 int err;
696
697 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
698 urb->actual_length);
699
700 if (!test_bit(HCI_RUNNING, &hdev->flags))
701 return;
702
703 if (urb->status == 0) {
704 hdev->stat.byte_rx += urb->actual_length;
705
706 if (data->recv_bulk(data, urb->transfer_buffer,
707 urb->actual_length) < 0) {
708 BT_ERR("%s corrupted ACL packet", hdev->name);
709 hdev->stat.err_rx++;
710 }
711 } else if (urb->status == -ENOENT) {
712 /* Avoid suspend failed when usb_kill_urb */
713 return;
714 }
715
716 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
717 return;
718
719 usb_anchor_urb(urb, &data->bulk_anchor);
720 usb_mark_last_busy(data->udev);
721
722 err = usb_submit_urb(urb, GFP_ATOMIC);
723 if (err < 0) {
724 /* -EPERM: urb is being killed;
725 * -ENODEV: device got disconnected */
726 if (err != -EPERM && err != -ENODEV)
727 BT_ERR("%s urb %p failed to resubmit (%d)",
728 hdev->name, urb, -err);
729 usb_unanchor_urb(urb);
730 }
731 }
732
733 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
734 {
735 struct btusb_data *data = hci_get_drvdata(hdev);
736 struct urb *urb;
737 unsigned char *buf;
738 unsigned int pipe;
739 int err, size = HCI_MAX_FRAME_SIZE;
740
741 BT_DBG("%s", hdev->name);
742
743 if (!data->bulk_rx_ep)
744 return -ENODEV;
745
746 urb = usb_alloc_urb(0, mem_flags);
747 if (!urb)
748 return -ENOMEM;
749
750 buf = kmalloc(size, mem_flags);
751 if (!buf) {
752 usb_free_urb(urb);
753 return -ENOMEM;
754 }
755
756 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
757
758 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
759 btusb_bulk_complete, hdev);
760
761 urb->transfer_flags |= URB_FREE_BUFFER;
762
763 usb_mark_last_busy(data->udev);
764 usb_anchor_urb(urb, &data->bulk_anchor);
765
766 err = usb_submit_urb(urb, mem_flags);
767 if (err < 0) {
768 if (err != -EPERM && err != -ENODEV)
769 BT_ERR("%s urb %p submission failed (%d)",
770 hdev->name, urb, -err);
771 usb_unanchor_urb(urb);
772 }
773
774 usb_free_urb(urb);
775
776 return err;
777 }
778
779 static void btusb_isoc_complete(struct urb *urb)
780 {
781 struct hci_dev *hdev = urb->context;
782 struct btusb_data *data = hci_get_drvdata(hdev);
783 int i, err;
784
785 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
786 urb->actual_length);
787
788 if (!test_bit(HCI_RUNNING, &hdev->flags))
789 return;
790
791 if (urb->status == 0) {
792 for (i = 0; i < urb->number_of_packets; i++) {
793 unsigned int offset = urb->iso_frame_desc[i].offset;
794 unsigned int length = urb->iso_frame_desc[i].actual_length;
795
796 if (urb->iso_frame_desc[i].status)
797 continue;
798
799 hdev->stat.byte_rx += length;
800
801 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
802 length) < 0) {
803 BT_ERR("%s corrupted SCO packet", hdev->name);
804 hdev->stat.err_rx++;
805 }
806 }
807 } else if (urb->status == -ENOENT) {
808 /* Avoid suspend failed when usb_kill_urb */
809 return;
810 }
811
812 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
813 return;
814
815 usb_anchor_urb(urb, &data->isoc_anchor);
816
817 err = usb_submit_urb(urb, GFP_ATOMIC);
818 if (err < 0) {
819 /* -EPERM: urb is being killed;
820 * -ENODEV: device got disconnected */
821 if (err != -EPERM && err != -ENODEV)
822 BT_ERR("%s urb %p failed to resubmit (%d)",
823 hdev->name, urb, -err);
824 usb_unanchor_urb(urb);
825 }
826 }
827
828 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
829 {
830 int i, offset = 0;
831
832 BT_DBG("len %d mtu %d", len, mtu);
833
834 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
835 i++, offset += mtu, len -= mtu) {
836 urb->iso_frame_desc[i].offset = offset;
837 urb->iso_frame_desc[i].length = mtu;
838 }
839
840 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
841 urb->iso_frame_desc[i].offset = offset;
842 urb->iso_frame_desc[i].length = len;
843 i++;
844 }
845
846 urb->number_of_packets = i;
847 }
848
849 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
850 {
851 struct btusb_data *data = hci_get_drvdata(hdev);
852 struct urb *urb;
853 unsigned char *buf;
854 unsigned int pipe;
855 int err, size;
856
857 BT_DBG("%s", hdev->name);
858
859 if (!data->isoc_rx_ep)
860 return -ENODEV;
861
862 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
863 if (!urb)
864 return -ENOMEM;
865
866 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
867 BTUSB_MAX_ISOC_FRAMES;
868
869 buf = kmalloc(size, mem_flags);
870 if (!buf) {
871 usb_free_urb(urb);
872 return -ENOMEM;
873 }
874
875 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
876
877 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
878 hdev, data->isoc_rx_ep->bInterval);
879
880 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
881
882 __fill_isoc_descriptor(urb, size,
883 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
884
885 usb_anchor_urb(urb, &data->isoc_anchor);
886
887 err = usb_submit_urb(urb, mem_flags);
888 if (err < 0) {
889 if (err != -EPERM && err != -ENODEV)
890 BT_ERR("%s urb %p submission failed (%d)",
891 hdev->name, urb, -err);
892 usb_unanchor_urb(urb);
893 }
894
895 usb_free_urb(urb);
896
897 return err;
898 }
899
900 static void btusb_diag_complete(struct urb *urb)
901 {
902 struct hci_dev *hdev = urb->context;
903 struct btusb_data *data = hci_get_drvdata(hdev);
904 int err;
905
906 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
907 urb->actual_length);
908
909 if (urb->status == 0) {
910 struct sk_buff *skb;
911
912 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC);
913 if (skb) {
914 memcpy(skb_put(skb, urb->actual_length),
915 urb->transfer_buffer, urb->actual_length);
916 hci_recv_diag(hdev, skb);
917 }
918 } else if (urb->status == -ENOENT) {
919 /* Avoid suspend failed when usb_kill_urb */
920 return;
921 }
922
923 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags))
924 return;
925
926 usb_anchor_urb(urb, &data->diag_anchor);
927 usb_mark_last_busy(data->udev);
928
929 err = usb_submit_urb(urb, GFP_ATOMIC);
930 if (err < 0) {
931 /* -EPERM: urb is being killed;
932 * -ENODEV: device got disconnected */
933 if (err != -EPERM && err != -ENODEV)
934 BT_ERR("%s urb %p failed to resubmit (%d)",
935 hdev->name, urb, -err);
936 usb_unanchor_urb(urb);
937 }
938 }
939
940 static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags)
941 {
942 struct btusb_data *data = hci_get_drvdata(hdev);
943 struct urb *urb;
944 unsigned char *buf;
945 unsigned int pipe;
946 int err, size = HCI_MAX_FRAME_SIZE;
947
948 BT_DBG("%s", hdev->name);
949
950 if (!data->diag_rx_ep)
951 return -ENODEV;
952
953 urb = usb_alloc_urb(0, mem_flags);
954 if (!urb)
955 return -ENOMEM;
956
957 buf = kmalloc(size, mem_flags);
958 if (!buf) {
959 usb_free_urb(urb);
960 return -ENOMEM;
961 }
962
963 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress);
964
965 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
966 btusb_diag_complete, hdev);
967
968 urb->transfer_flags |= URB_FREE_BUFFER;
969
970 usb_mark_last_busy(data->udev);
971 usb_anchor_urb(urb, &data->diag_anchor);
972
973 err = usb_submit_urb(urb, mem_flags);
974 if (err < 0) {
975 if (err != -EPERM && err != -ENODEV)
976 BT_ERR("%s urb %p submission failed (%d)",
977 hdev->name, urb, -err);
978 usb_unanchor_urb(urb);
979 }
980
981 usb_free_urb(urb);
982
983 return err;
984 }
985
986 static void btusb_tx_complete(struct urb *urb)
987 {
988 struct sk_buff *skb = urb->context;
989 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
990 struct btusb_data *data = hci_get_drvdata(hdev);
991
992 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
993 urb->actual_length);
994
995 if (!test_bit(HCI_RUNNING, &hdev->flags))
996 goto done;
997
998 if (!urb->status)
999 hdev->stat.byte_tx += urb->transfer_buffer_length;
1000 else
1001 hdev->stat.err_tx++;
1002
1003 done:
1004 spin_lock(&data->txlock);
1005 data->tx_in_flight--;
1006 spin_unlock(&data->txlock);
1007
1008 kfree(urb->setup_packet);
1009
1010 kfree_skb(skb);
1011 }
1012
1013 static void btusb_isoc_tx_complete(struct urb *urb)
1014 {
1015 struct sk_buff *skb = urb->context;
1016 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1017
1018 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1019 urb->actual_length);
1020
1021 if (!test_bit(HCI_RUNNING, &hdev->flags))
1022 goto done;
1023
1024 if (!urb->status)
1025 hdev->stat.byte_tx += urb->transfer_buffer_length;
1026 else
1027 hdev->stat.err_tx++;
1028
1029 done:
1030 kfree(urb->setup_packet);
1031
1032 kfree_skb(skb);
1033 }
1034
1035 static int btusb_open(struct hci_dev *hdev)
1036 {
1037 struct btusb_data *data = hci_get_drvdata(hdev);
1038 int err;
1039
1040 BT_DBG("%s", hdev->name);
1041
1042 /* Patching USB firmware files prior to starting any URBs of HCI path
1043 * It is more safe to use USB bulk channel for downloading USB patch
1044 */
1045 if (data->setup_on_usb) {
1046 err = data->setup_on_usb(hdev);
1047 if (err < 0)
1048 return err;
1049 }
1050
1051 err = usb_autopm_get_interface(data->intf);
1052 if (err < 0)
1053 return err;
1054
1055 data->intf->needs_remote_wakeup = 1;
1056
1057 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
1058 goto done;
1059
1060 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
1061 if (err < 0)
1062 goto failed;
1063
1064 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1065 if (err < 0) {
1066 usb_kill_anchored_urbs(&data->intr_anchor);
1067 goto failed;
1068 }
1069
1070 set_bit(BTUSB_BULK_RUNNING, &data->flags);
1071 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1072
1073 if (data->diag) {
1074 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL))
1075 set_bit(BTUSB_DIAG_RUNNING, &data->flags);
1076 }
1077
1078 done:
1079 usb_autopm_put_interface(data->intf);
1080 return 0;
1081
1082 failed:
1083 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1084 usb_autopm_put_interface(data->intf);
1085 return err;
1086 }
1087
1088 static void btusb_stop_traffic(struct btusb_data *data)
1089 {
1090 usb_kill_anchored_urbs(&data->intr_anchor);
1091 usb_kill_anchored_urbs(&data->bulk_anchor);
1092 usb_kill_anchored_urbs(&data->isoc_anchor);
1093 usb_kill_anchored_urbs(&data->diag_anchor);
1094 }
1095
1096 static int btusb_close(struct hci_dev *hdev)
1097 {
1098 struct btusb_data *data = hci_get_drvdata(hdev);
1099 int err;
1100
1101 BT_DBG("%s", hdev->name);
1102
1103 cancel_work_sync(&data->work);
1104 cancel_work_sync(&data->waker);
1105
1106 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1107 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1108 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1109 clear_bit(BTUSB_DIAG_RUNNING, &data->flags);
1110
1111 btusb_stop_traffic(data);
1112 btusb_free_frags(data);
1113
1114 err = usb_autopm_get_interface(data->intf);
1115 if (err < 0)
1116 goto failed;
1117
1118 data->intf->needs_remote_wakeup = 0;
1119 usb_autopm_put_interface(data->intf);
1120
1121 failed:
1122 usb_scuttle_anchored_urbs(&data->deferred);
1123 return 0;
1124 }
1125
1126 static int btusb_flush(struct hci_dev *hdev)
1127 {
1128 struct btusb_data *data = hci_get_drvdata(hdev);
1129
1130 BT_DBG("%s", hdev->name);
1131
1132 usb_kill_anchored_urbs(&data->tx_anchor);
1133 btusb_free_frags(data);
1134
1135 return 0;
1136 }
1137
1138 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
1139 {
1140 struct btusb_data *data = hci_get_drvdata(hdev);
1141 struct usb_ctrlrequest *dr;
1142 struct urb *urb;
1143 unsigned int pipe;
1144
1145 urb = usb_alloc_urb(0, GFP_KERNEL);
1146 if (!urb)
1147 return ERR_PTR(-ENOMEM);
1148
1149 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
1150 if (!dr) {
1151 usb_free_urb(urb);
1152 return ERR_PTR(-ENOMEM);
1153 }
1154
1155 dr->bRequestType = data->cmdreq_type;
1156 dr->bRequest = data->cmdreq;
1157 dr->wIndex = 0;
1158 dr->wValue = 0;
1159 dr->wLength = __cpu_to_le16(skb->len);
1160
1161 pipe = usb_sndctrlpipe(data->udev, 0x00);
1162
1163 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
1164 skb->data, skb->len, btusb_tx_complete, skb);
1165
1166 skb->dev = (void *)hdev;
1167
1168 return urb;
1169 }
1170
1171 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
1172 {
1173 struct btusb_data *data = hci_get_drvdata(hdev);
1174 struct urb *urb;
1175 unsigned int pipe;
1176
1177 if (!data->bulk_tx_ep)
1178 return ERR_PTR(-ENODEV);
1179
1180 urb = usb_alloc_urb(0, GFP_KERNEL);
1181 if (!urb)
1182 return ERR_PTR(-ENOMEM);
1183
1184 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
1185
1186 usb_fill_bulk_urb(urb, data->udev, pipe,
1187 skb->data, skb->len, btusb_tx_complete, skb);
1188
1189 skb->dev = (void *)hdev;
1190
1191 return urb;
1192 }
1193
1194 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
1195 {
1196 struct btusb_data *data = hci_get_drvdata(hdev);
1197 struct urb *urb;
1198 unsigned int pipe;
1199
1200 if (!data->isoc_tx_ep)
1201 return ERR_PTR(-ENODEV);
1202
1203 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
1204 if (!urb)
1205 return ERR_PTR(-ENOMEM);
1206
1207 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
1208
1209 usb_fill_int_urb(urb, data->udev, pipe,
1210 skb->data, skb->len, btusb_isoc_tx_complete,
1211 skb, data->isoc_tx_ep->bInterval);
1212
1213 urb->transfer_flags = URB_ISO_ASAP;
1214
1215 __fill_isoc_descriptor(urb, skb->len,
1216 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
1217
1218 skb->dev = (void *)hdev;
1219
1220 return urb;
1221 }
1222
1223 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
1224 {
1225 struct btusb_data *data = hci_get_drvdata(hdev);
1226 int err;
1227
1228 usb_anchor_urb(urb, &data->tx_anchor);
1229
1230 err = usb_submit_urb(urb, GFP_KERNEL);
1231 if (err < 0) {
1232 if (err != -EPERM && err != -ENODEV)
1233 BT_ERR("%s urb %p submission failed (%d)",
1234 hdev->name, urb, -err);
1235 kfree(urb->setup_packet);
1236 usb_unanchor_urb(urb);
1237 } else {
1238 usb_mark_last_busy(data->udev);
1239 }
1240
1241 usb_free_urb(urb);
1242 return err;
1243 }
1244
1245 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
1246 {
1247 struct btusb_data *data = hci_get_drvdata(hdev);
1248 unsigned long flags;
1249 bool suspending;
1250
1251 spin_lock_irqsave(&data->txlock, flags);
1252 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
1253 if (!suspending)
1254 data->tx_in_flight++;
1255 spin_unlock_irqrestore(&data->txlock, flags);
1256
1257 if (!suspending)
1258 return submit_tx_urb(hdev, urb);
1259
1260 usb_anchor_urb(urb, &data->deferred);
1261 schedule_work(&data->waker);
1262
1263 usb_free_urb(urb);
1264 return 0;
1265 }
1266
1267 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
1268 {
1269 struct urb *urb;
1270
1271 BT_DBG("%s", hdev->name);
1272
1273 switch (hci_skb_pkt_type(skb)) {
1274 case HCI_COMMAND_PKT:
1275 urb = alloc_ctrl_urb(hdev, skb);
1276 if (IS_ERR(urb))
1277 return PTR_ERR(urb);
1278
1279 hdev->stat.cmd_tx++;
1280 return submit_or_queue_tx_urb(hdev, urb);
1281
1282 case HCI_ACLDATA_PKT:
1283 urb = alloc_bulk_urb(hdev, skb);
1284 if (IS_ERR(urb))
1285 return PTR_ERR(urb);
1286
1287 hdev->stat.acl_tx++;
1288 return submit_or_queue_tx_urb(hdev, urb);
1289
1290 case HCI_SCODATA_PKT:
1291 if (hci_conn_num(hdev, SCO_LINK) < 1)
1292 return -ENODEV;
1293
1294 urb = alloc_isoc_urb(hdev, skb);
1295 if (IS_ERR(urb))
1296 return PTR_ERR(urb);
1297
1298 hdev->stat.sco_tx++;
1299 return submit_tx_urb(hdev, urb);
1300 }
1301
1302 return -EILSEQ;
1303 }
1304
1305 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
1306 {
1307 struct btusb_data *data = hci_get_drvdata(hdev);
1308
1309 BT_DBG("%s evt %d", hdev->name, evt);
1310
1311 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
1312 data->sco_num = hci_conn_num(hdev, SCO_LINK);
1313 schedule_work(&data->work);
1314 }
1315 }
1316
1317 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
1318 {
1319 struct btusb_data *data = hci_get_drvdata(hdev);
1320 struct usb_interface *intf = data->isoc;
1321 struct usb_endpoint_descriptor *ep_desc;
1322 int i, err;
1323
1324 if (!data->isoc)
1325 return -ENODEV;
1326
1327 err = usb_set_interface(data->udev, 1, altsetting);
1328 if (err < 0) {
1329 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
1330 return err;
1331 }
1332
1333 data->isoc_altsetting = altsetting;
1334
1335 data->isoc_tx_ep = NULL;
1336 data->isoc_rx_ep = NULL;
1337
1338 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1339 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1340
1341 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
1342 data->isoc_tx_ep = ep_desc;
1343 continue;
1344 }
1345
1346 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
1347 data->isoc_rx_ep = ep_desc;
1348 continue;
1349 }
1350 }
1351
1352 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
1353 BT_ERR("%s invalid SCO descriptors", hdev->name);
1354 return -ENODEV;
1355 }
1356
1357 return 0;
1358 }
1359
1360 static void btusb_work(struct work_struct *work)
1361 {
1362 struct btusb_data *data = container_of(work, struct btusb_data, work);
1363 struct hci_dev *hdev = data->hdev;
1364 int new_alts;
1365 int err;
1366
1367 if (data->sco_num > 0) {
1368 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
1369 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
1370 if (err < 0) {
1371 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1372 usb_kill_anchored_urbs(&data->isoc_anchor);
1373 return;
1374 }
1375
1376 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
1377 }
1378
1379 if (hdev->voice_setting & 0x0020) {
1380 static const int alts[3] = { 2, 4, 5 };
1381
1382 new_alts = alts[data->sco_num - 1];
1383 } else {
1384 new_alts = data->sco_num;
1385 }
1386
1387 if (data->isoc_altsetting != new_alts) {
1388 unsigned long flags;
1389
1390 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1391 usb_kill_anchored_urbs(&data->isoc_anchor);
1392
1393 /* When isochronous alternate setting needs to be
1394 * changed, because SCO connection has been added
1395 * or removed, a packet fragment may be left in the
1396 * reassembling state. This could lead to wrongly
1397 * assembled fragments.
1398 *
1399 * Clear outstanding fragment when selecting a new
1400 * alternate setting.
1401 */
1402 spin_lock_irqsave(&data->rxlock, flags);
1403 kfree_skb(data->sco_skb);
1404 data->sco_skb = NULL;
1405 spin_unlock_irqrestore(&data->rxlock, flags);
1406
1407 if (__set_isoc_interface(hdev, new_alts) < 0)
1408 return;
1409 }
1410
1411 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1412 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
1413 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1414 else
1415 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
1416 }
1417 } else {
1418 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1419 usb_kill_anchored_urbs(&data->isoc_anchor);
1420
1421 __set_isoc_interface(hdev, 0);
1422 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
1423 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
1424 }
1425 }
1426
1427 static void btusb_waker(struct work_struct *work)
1428 {
1429 struct btusb_data *data = container_of(work, struct btusb_data, waker);
1430 int err;
1431
1432 err = usb_autopm_get_interface(data->intf);
1433 if (err < 0)
1434 return;
1435
1436 usb_autopm_put_interface(data->intf);
1437 }
1438
1439 static int btusb_setup_bcm92035(struct hci_dev *hdev)
1440 {
1441 struct sk_buff *skb;
1442 u8 val = 0x00;
1443
1444 BT_DBG("%s", hdev->name);
1445
1446 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
1447 if (IS_ERR(skb))
1448 BT_ERR("BCM92035 command failed (%ld)", -PTR_ERR(skb));
1449 else
1450 kfree_skb(skb);
1451
1452 return 0;
1453 }
1454
1455 static int btusb_setup_csr(struct hci_dev *hdev)
1456 {
1457 struct hci_rp_read_local_version *rp;
1458 struct sk_buff *skb;
1459
1460 BT_DBG("%s", hdev->name);
1461
1462 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1463 HCI_INIT_TIMEOUT);
1464 if (IS_ERR(skb)) {
1465 int err = PTR_ERR(skb);
1466 BT_ERR("%s: CSR: Local version failed (%d)", hdev->name, err);
1467 return err;
1468 }
1469
1470 if (skb->len != sizeof(struct hci_rp_read_local_version)) {
1471 BT_ERR("%s: CSR: Local version length mismatch", hdev->name);
1472 kfree_skb(skb);
1473 return -EIO;
1474 }
1475
1476 rp = (struct hci_rp_read_local_version *)skb->data;
1477
1478 /* Detect controllers which aren't real CSR ones. */
1479 if (le16_to_cpu(rp->manufacturer) != 10 ||
1480 le16_to_cpu(rp->lmp_subver) == 0x0c5c) {
1481 /* Clear the reset quirk since this is not an actual
1482 * early Bluetooth 1.1 device from CSR.
1483 */
1484 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1485
1486 /* These fake CSR controllers have all a broken
1487 * stored link key handling and so just disable it.
1488 */
1489 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
1490 }
1491
1492 kfree_skb(skb);
1493
1494 return 0;
1495 }
1496
1497 static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev,
1498 struct intel_version *ver)
1499 {
1500 const struct firmware *fw;
1501 char fwname[64];
1502 int ret;
1503
1504 snprintf(fwname, sizeof(fwname),
1505 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq",
1506 ver->hw_platform, ver->hw_variant, ver->hw_revision,
1507 ver->fw_variant, ver->fw_revision, ver->fw_build_num,
1508 ver->fw_build_ww, ver->fw_build_yy);
1509
1510 ret = request_firmware(&fw, fwname, &hdev->dev);
1511 if (ret < 0) {
1512 if (ret == -EINVAL) {
1513 BT_ERR("%s Intel firmware file request failed (%d)",
1514 hdev->name, ret);
1515 return NULL;
1516 }
1517
1518 BT_ERR("%s failed to open Intel firmware file: %s(%d)",
1519 hdev->name, fwname, ret);
1520
1521 /* If the correct firmware patch file is not found, use the
1522 * default firmware patch file instead
1523 */
1524 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq",
1525 ver->hw_platform, ver->hw_variant);
1526 if (request_firmware(&fw, fwname, &hdev->dev) < 0) {
1527 BT_ERR("%s failed to open default Intel fw file: %s",
1528 hdev->name, fwname);
1529 return NULL;
1530 }
1531 }
1532
1533 BT_INFO("%s: Intel Bluetooth firmware file: %s", hdev->name, fwname);
1534
1535 return fw;
1536 }
1537
1538 static int btusb_setup_intel_patching(struct hci_dev *hdev,
1539 const struct firmware *fw,
1540 const u8 **fw_ptr, int *disable_patch)
1541 {
1542 struct sk_buff *skb;
1543 struct hci_command_hdr *cmd;
1544 const u8 *cmd_param;
1545 struct hci_event_hdr *evt = NULL;
1546 const u8 *evt_param = NULL;
1547 int remain = fw->size - (*fw_ptr - fw->data);
1548
1549 /* The first byte indicates the types of the patch command or event.
1550 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes
1551 * in the current firmware buffer doesn't start with 0x01 or
1552 * the size of remain buffer is smaller than HCI command header,
1553 * the firmware file is corrupted and it should stop the patching
1554 * process.
1555 */
1556 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) {
1557 BT_ERR("%s Intel fw corrupted: invalid cmd read", hdev->name);
1558 return -EINVAL;
1559 }
1560 (*fw_ptr)++;
1561 remain--;
1562
1563 cmd = (struct hci_command_hdr *)(*fw_ptr);
1564 *fw_ptr += sizeof(*cmd);
1565 remain -= sizeof(*cmd);
1566
1567 /* Ensure that the remain firmware data is long enough than the length
1568 * of command parameter. If not, the firmware file is corrupted.
1569 */
1570 if (remain < cmd->plen) {
1571 BT_ERR("%s Intel fw corrupted: invalid cmd len", hdev->name);
1572 return -EFAULT;
1573 }
1574
1575 /* If there is a command that loads a patch in the firmware
1576 * file, then enable the patch upon success, otherwise just
1577 * disable the manufacturer mode, for example patch activation
1578 * is not required when the default firmware patch file is used
1579 * because there are no patch data to load.
1580 */
1581 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e)
1582 *disable_patch = 0;
1583
1584 cmd_param = *fw_ptr;
1585 *fw_ptr += cmd->plen;
1586 remain -= cmd->plen;
1587
1588 /* This reads the expected events when the above command is sent to the
1589 * device. Some vendor commands expects more than one events, for
1590 * example command status event followed by vendor specific event.
1591 * For this case, it only keeps the last expected event. so the command
1592 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of
1593 * last expected event.
1594 */
1595 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) {
1596 (*fw_ptr)++;
1597 remain--;
1598
1599 evt = (struct hci_event_hdr *)(*fw_ptr);
1600 *fw_ptr += sizeof(*evt);
1601 remain -= sizeof(*evt);
1602
1603 if (remain < evt->plen) {
1604 BT_ERR("%s Intel fw corrupted: invalid evt len",
1605 hdev->name);
1606 return -EFAULT;
1607 }
1608
1609 evt_param = *fw_ptr;
1610 *fw_ptr += evt->plen;
1611 remain -= evt->plen;
1612 }
1613
1614 /* Every HCI commands in the firmware file has its correspond event.
1615 * If event is not found or remain is smaller than zero, the firmware
1616 * file is corrupted.
1617 */
1618 if (!evt || !evt_param || remain < 0) {
1619 BT_ERR("%s Intel fw corrupted: invalid evt read", hdev->name);
1620 return -EFAULT;
1621 }
1622
1623 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen,
1624 cmd_param, evt->evt, HCI_INIT_TIMEOUT);
1625 if (IS_ERR(skb)) {
1626 BT_ERR("%s sending Intel patch command (0x%4.4x) failed (%ld)",
1627 hdev->name, cmd->opcode, PTR_ERR(skb));
1628 return PTR_ERR(skb);
1629 }
1630
1631 /* It ensures that the returned event matches the event data read from
1632 * the firmware file. At fist, it checks the length and then
1633 * the contents of the event.
1634 */
1635 if (skb->len != evt->plen) {
1636 BT_ERR("%s mismatch event length (opcode 0x%4.4x)", hdev->name,
1637 le16_to_cpu(cmd->opcode));
1638 kfree_skb(skb);
1639 return -EFAULT;
1640 }
1641
1642 if (memcmp(skb->data, evt_param, evt->plen)) {
1643 BT_ERR("%s mismatch event parameter (opcode 0x%4.4x)",
1644 hdev->name, le16_to_cpu(cmd->opcode));
1645 kfree_skb(skb);
1646 return -EFAULT;
1647 }
1648 kfree_skb(skb);
1649
1650 return 0;
1651 }
1652
1653 static int btusb_setup_intel(struct hci_dev *hdev)
1654 {
1655 struct sk_buff *skb;
1656 const struct firmware *fw;
1657 const u8 *fw_ptr;
1658 int disable_patch, err;
1659 struct intel_version ver;
1660
1661 BT_DBG("%s", hdev->name);
1662
1663 /* The controller has a bug with the first HCI command sent to it
1664 * returning number of completed commands as zero. This would stall the
1665 * command processing in the Bluetooth core.
1666 *
1667 * As a workaround, send HCI Reset command first which will reset the
1668 * number of completed commands and allow normal command processing
1669 * from now on.
1670 */
1671 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1672 if (IS_ERR(skb)) {
1673 BT_ERR("%s sending initial HCI reset command failed (%ld)",
1674 hdev->name, PTR_ERR(skb));
1675 return PTR_ERR(skb);
1676 }
1677 kfree_skb(skb);
1678
1679 /* Read Intel specific controller version first to allow selection of
1680 * which firmware file to load.
1681 *
1682 * The returned information are hardware variant and revision plus
1683 * firmware variant, revision and build number.
1684 */
1685 err = btintel_read_version(hdev, &ver);
1686 if (err)
1687 return err;
1688
1689 BT_INFO("%s: read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
1690 hdev->name, ver.hw_platform, ver.hw_variant, ver.hw_revision,
1691 ver.fw_variant, ver.fw_revision, ver.fw_build_num,
1692 ver.fw_build_ww, ver.fw_build_yy, ver.fw_patch_num);
1693
1694 /* fw_patch_num indicates the version of patch the device currently
1695 * have. If there is no patch data in the device, it is always 0x00.
1696 * So, if it is other than 0x00, no need to patch the device again.
1697 */
1698 if (ver.fw_patch_num) {
1699 BT_INFO("%s: Intel device is already patched. patch num: %02x",
1700 hdev->name, ver.fw_patch_num);
1701 goto complete;
1702 }
1703
1704 /* Opens the firmware patch file based on the firmware version read
1705 * from the controller. If it fails to open the matching firmware
1706 * patch file, it tries to open the default firmware patch file.
1707 * If no patch file is found, allow the device to operate without
1708 * a patch.
1709 */
1710 fw = btusb_setup_intel_get_fw(hdev, &ver);
1711 if (!fw)
1712 goto complete;
1713 fw_ptr = fw->data;
1714
1715 /* Enable the manufacturer mode of the controller.
1716 * Only while this mode is enabled, the driver can download the
1717 * firmware patch data and configuration parameters.
1718 */
1719 err = btintel_enter_mfg(hdev);
1720 if (err) {
1721 release_firmware(fw);
1722 return err;
1723 }
1724
1725 disable_patch = 1;
1726
1727 /* The firmware data file consists of list of Intel specific HCI
1728 * commands and its expected events. The first byte indicates the
1729 * type of the message, either HCI command or HCI event.
1730 *
1731 * It reads the command and its expected event from the firmware file,
1732 * and send to the controller. Once __hci_cmd_sync_ev() returns,
1733 * the returned event is compared with the event read from the firmware
1734 * file and it will continue until all the messages are downloaded to
1735 * the controller.
1736 *
1737 * Once the firmware patching is completed successfully,
1738 * the manufacturer mode is disabled with reset and activating the
1739 * downloaded patch.
1740 *
1741 * If the firmware patching fails, the manufacturer mode is
1742 * disabled with reset and deactivating the patch.
1743 *
1744 * If the default patch file is used, no reset is done when disabling
1745 * the manufacturer.
1746 */
1747 while (fw->size > fw_ptr - fw->data) {
1748 int ret;
1749
1750 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr,
1751 &disable_patch);
1752 if (ret < 0)
1753 goto exit_mfg_deactivate;
1754 }
1755
1756 release_firmware(fw);
1757
1758 if (disable_patch)
1759 goto exit_mfg_disable;
1760
1761 /* Patching completed successfully and disable the manufacturer mode
1762 * with reset and activate the downloaded firmware patches.
1763 */
1764 err = btintel_exit_mfg(hdev, true, true);
1765 if (err)
1766 return err;
1767
1768 BT_INFO("%s: Intel Bluetooth firmware patch completed and activated",
1769 hdev->name);
1770
1771 goto complete;
1772
1773 exit_mfg_disable:
1774 /* Disable the manufacturer mode without reset */
1775 err = btintel_exit_mfg(hdev, false, false);
1776 if (err)
1777 return err;
1778
1779 BT_INFO("%s: Intel Bluetooth firmware patch completed", hdev->name);
1780
1781 goto complete;
1782
1783 exit_mfg_deactivate:
1784 release_firmware(fw);
1785
1786 /* Patching failed. Disable the manufacturer mode with reset and
1787 * deactivate the downloaded firmware patches.
1788 */
1789 err = btintel_exit_mfg(hdev, true, false);
1790 if (err)
1791 return err;
1792
1793 BT_INFO("%s: Intel Bluetooth firmware patch completed and deactivated",
1794 hdev->name);
1795
1796 complete:
1797 /* Set the event mask for Intel specific vendor events. This enables
1798 * a few extra events that are useful during general operation.
1799 */
1800 btintel_set_event_mask_mfg(hdev, false);
1801
1802 btintel_check_bdaddr(hdev);
1803 return 0;
1804 }
1805
1806 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
1807 {
1808 struct sk_buff *skb;
1809 struct hci_event_hdr *hdr;
1810 struct hci_ev_cmd_complete *evt;
1811
1812 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_ATOMIC);
1813 if (!skb)
1814 return -ENOMEM;
1815
1816 hdr = (struct hci_event_hdr *)skb_put(skb, sizeof(*hdr));
1817 hdr->evt = HCI_EV_CMD_COMPLETE;
1818 hdr->plen = sizeof(*evt) + 1;
1819
1820 evt = (struct hci_ev_cmd_complete *)skb_put(skb, sizeof(*evt));
1821 evt->ncmd = 0x01;
1822 evt->opcode = cpu_to_le16(opcode);
1823
1824 *skb_put(skb, 1) = 0x00;
1825
1826 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
1827
1828 return hci_recv_frame(hdev, skb);
1829 }
1830
1831 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
1832 int count)
1833 {
1834 /* When the device is in bootloader mode, then it can send
1835 * events via the bulk endpoint. These events are treated the
1836 * same way as the ones received from the interrupt endpoint.
1837 */
1838 if (test_bit(BTUSB_BOOTLOADER, &data->flags))
1839 return btusb_recv_intr(data, buffer, count);
1840
1841 return btusb_recv_bulk(data, buffer, count);
1842 }
1843
1844 static void btusb_intel_bootup(struct btusb_data *data, const void *ptr,
1845 unsigned int len)
1846 {
1847 const struct intel_bootup *evt = ptr;
1848
1849 if (len != sizeof(*evt))
1850 return;
1851
1852 if (test_and_clear_bit(BTUSB_BOOTING, &data->flags)) {
1853 smp_mb__after_atomic();
1854 wake_up_bit(&data->flags, BTUSB_BOOTING);
1855 }
1856 }
1857
1858 static void btusb_intel_secure_send_result(struct btusb_data *data,
1859 const void *ptr, unsigned int len)
1860 {
1861 const struct intel_secure_send_result *evt = ptr;
1862
1863 if (len != sizeof(*evt))
1864 return;
1865
1866 if (evt->result)
1867 set_bit(BTUSB_FIRMWARE_FAILED, &data->flags);
1868
1869 if (test_and_clear_bit(BTUSB_DOWNLOADING, &data->flags) &&
1870 test_bit(BTUSB_FIRMWARE_LOADED, &data->flags)) {
1871 smp_mb__after_atomic();
1872 wake_up_bit(&data->flags, BTUSB_DOWNLOADING);
1873 }
1874 }
1875
1876 static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb)
1877 {
1878 struct btusb_data *data = hci_get_drvdata(hdev);
1879
1880 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
1881 struct hci_event_hdr *hdr = (void *)skb->data;
1882
1883 if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff &&
1884 hdr->plen > 0) {
1885 const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1;
1886 unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1;
1887
1888 switch (skb->data[2]) {
1889 case 0x02:
1890 /* When switching to the operational firmware
1891 * the device sends a vendor specific event
1892 * indicating that the bootup completed.
1893 */
1894 btusb_intel_bootup(data, ptr, len);
1895 break;
1896 case 0x06:
1897 /* When the firmware loading completes the
1898 * device sends out a vendor specific event
1899 * indicating the result of the firmware
1900 * loading.
1901 */
1902 btusb_intel_secure_send_result(data, ptr, len);
1903 break;
1904 }
1905 }
1906 }
1907
1908 return hci_recv_frame(hdev, skb);
1909 }
1910
1911 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
1912 {
1913 struct btusb_data *data = hci_get_drvdata(hdev);
1914 struct urb *urb;
1915
1916 BT_DBG("%s", hdev->name);
1917
1918 switch (hci_skb_pkt_type(skb)) {
1919 case HCI_COMMAND_PKT:
1920 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
1921 struct hci_command_hdr *cmd = (void *)skb->data;
1922 __u16 opcode = le16_to_cpu(cmd->opcode);
1923
1924 /* When in bootloader mode and the command 0xfc09
1925 * is received, it needs to be send down the
1926 * bulk endpoint. So allocate a bulk URB instead.
1927 */
1928 if (opcode == 0xfc09)
1929 urb = alloc_bulk_urb(hdev, skb);
1930 else
1931 urb = alloc_ctrl_urb(hdev, skb);
1932
1933 /* When the 0xfc01 command is issued to boot into
1934 * the operational firmware, it will actually not
1935 * send a command complete event. To keep the flow
1936 * control working inject that event here.
1937 */
1938 if (opcode == 0xfc01)
1939 inject_cmd_complete(hdev, opcode);
1940 } else {
1941 urb = alloc_ctrl_urb(hdev, skb);
1942 }
1943 if (IS_ERR(urb))
1944 return PTR_ERR(urb);
1945
1946 hdev->stat.cmd_tx++;
1947 return submit_or_queue_tx_urb(hdev, urb);
1948
1949 case HCI_ACLDATA_PKT:
1950 urb = alloc_bulk_urb(hdev, skb);
1951 if (IS_ERR(urb))
1952 return PTR_ERR(urb);
1953
1954 hdev->stat.acl_tx++;
1955 return submit_or_queue_tx_urb(hdev, urb);
1956
1957 case HCI_SCODATA_PKT:
1958 if (hci_conn_num(hdev, SCO_LINK) < 1)
1959 return -ENODEV;
1960
1961 urb = alloc_isoc_urb(hdev, skb);
1962 if (IS_ERR(urb))
1963 return PTR_ERR(urb);
1964
1965 hdev->stat.sco_tx++;
1966 return submit_tx_urb(hdev, urb);
1967 }
1968
1969 return -EILSEQ;
1970 }
1971
1972 static int btusb_setup_intel_new(struct hci_dev *hdev)
1973 {
1974 static const u8 reset_param[] = { 0x00, 0x01, 0x00, 0x01,
1975 0x00, 0x08, 0x04, 0x00 };
1976 struct btusb_data *data = hci_get_drvdata(hdev);
1977 struct sk_buff *skb;
1978 struct intel_version ver;
1979 struct intel_boot_params *params;
1980 const struct firmware *fw;
1981 const u8 *fw_ptr;
1982 u32 frag_len;
1983 char fwname[64];
1984 ktime_t calltime, delta, rettime;
1985 unsigned long long duration;
1986 int err;
1987
1988 BT_DBG("%s", hdev->name);
1989
1990 calltime = ktime_get();
1991
1992 /* Read the Intel version information to determine if the device
1993 * is in bootloader mode or if it already has operational firmware
1994 * loaded.
1995 */
1996 err = btintel_read_version(hdev, &ver);
1997 if (err)
1998 return err;
1999
2000 /* The hardware platform number has a fixed value of 0x37 and
2001 * for now only accept this single value.
2002 */
2003 if (ver.hw_platform != 0x37) {
2004 BT_ERR("%s: Unsupported Intel hardware platform (%u)",
2005 hdev->name, ver.hw_platform);
2006 return -EINVAL;
2007 }
2008
2009 /* At the moment the iBT 3.0 hardware variants 0x0b (LnP/SfP)
2010 * and 0x0c (WsP) are supported by this firmware loading method.
2011 *
2012 * This check has been put in place to ensure correct forward
2013 * compatibility options when newer hardware variants come along.
2014 */
2015 if (ver.hw_variant != 0x0b && ver.hw_variant != 0x0c) {
2016 BT_ERR("%s: Unsupported Intel hardware variant (%u)",
2017 hdev->name, ver.hw_variant);
2018 return -EINVAL;
2019 }
2020
2021 btintel_version_info(hdev, &ver);
2022
2023 /* The firmware variant determines if the device is in bootloader
2024 * mode or is running operational firmware. The value 0x06 identifies
2025 * the bootloader and the value 0x23 identifies the operational
2026 * firmware.
2027 *
2028 * When the operational firmware is already present, then only
2029 * the check for valid Bluetooth device address is needed. This
2030 * determines if the device will be added as configured or
2031 * unconfigured controller.
2032 *
2033 * It is not possible to use the Secure Boot Parameters in this
2034 * case since that command is only available in bootloader mode.
2035 */
2036 if (ver.fw_variant == 0x23) {
2037 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2038 btintel_check_bdaddr(hdev);
2039 return 0;
2040 }
2041
2042 /* If the device is not in bootloader mode, then the only possible
2043 * choice is to return an error and abort the device initialization.
2044 */
2045 if (ver.fw_variant != 0x06) {
2046 BT_ERR("%s: Unsupported Intel firmware variant (%u)",
2047 hdev->name, ver.fw_variant);
2048 return -ENODEV;
2049 }
2050
2051 /* Read the secure boot parameters to identify the operating
2052 * details of the bootloader.
2053 */
2054 skb = __hci_cmd_sync(hdev, 0xfc0d, 0, NULL, HCI_INIT_TIMEOUT);
2055 if (IS_ERR(skb)) {
2056 BT_ERR("%s: Reading Intel boot parameters failed (%ld)",
2057 hdev->name, PTR_ERR(skb));
2058 return PTR_ERR(skb);
2059 }
2060
2061 if (skb->len != sizeof(*params)) {
2062 BT_ERR("%s: Intel boot parameters size mismatch", hdev->name);
2063 kfree_skb(skb);
2064 return -EILSEQ;
2065 }
2066
2067 params = (struct intel_boot_params *)skb->data;
2068
2069 BT_INFO("%s: Device revision is %u", hdev->name,
2070 le16_to_cpu(params->dev_revid));
2071
2072 BT_INFO("%s: Secure boot is %s", hdev->name,
2073 params->secure_boot ? "enabled" : "disabled");
2074
2075 BT_INFO("%s: OTP lock is %s", hdev->name,
2076 params->otp_lock ? "enabled" : "disabled");
2077
2078 BT_INFO("%s: API lock is %s", hdev->name,
2079 params->api_lock ? "enabled" : "disabled");
2080
2081 BT_INFO("%s: Debug lock is %s", hdev->name,
2082 params->debug_lock ? "enabled" : "disabled");
2083
2084 BT_INFO("%s: Minimum firmware build %u week %u %u", hdev->name,
2085 params->min_fw_build_nn, params->min_fw_build_cw,
2086 2000 + params->min_fw_build_yy);
2087
2088 /* It is required that every single firmware fragment is acknowledged
2089 * with a command complete event. If the boot parameters indicate
2090 * that this bootloader does not send them, then abort the setup.
2091 */
2092 if (params->limited_cce != 0x00) {
2093 BT_ERR("%s: Unsupported Intel firmware loading method (%u)",
2094 hdev->name, params->limited_cce);
2095 kfree_skb(skb);
2096 return -EINVAL;
2097 }
2098
2099 /* If the OTP has no valid Bluetooth device address, then there will
2100 * also be no valid address for the operational firmware.
2101 */
2102 if (!bacmp(&params->otp_bdaddr, BDADDR_ANY)) {
2103 BT_INFO("%s: No device address configured", hdev->name);
2104 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
2105 }
2106
2107 /* With this Intel bootloader only the hardware variant and device
2108 * revision information are used to select the right firmware.
2109 *
2110 * The firmware filename is ibt-<hw_variant>-<dev_revid>.sfi.
2111 *
2112 * Currently the supported hardware variants are:
2113 * 11 (0x0b) for iBT3.0 (LnP/SfP)
2114 * 12 (0x0c) for iBT3.5 (WsP)
2115 */
2116 snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u.sfi",
2117 le16_to_cpu(ver.hw_variant),
2118 le16_to_cpu(params->dev_revid));
2119
2120 err = request_firmware(&fw, fwname, &hdev->dev);
2121 if (err < 0) {
2122 BT_ERR("%s: Failed to load Intel firmware file (%d)",
2123 hdev->name, err);
2124 kfree_skb(skb);
2125 return err;
2126 }
2127
2128 BT_INFO("%s: Found device firmware: %s", hdev->name, fwname);
2129
2130 /* Save the DDC file name for later use to apply once the firmware
2131 * downloading is done.
2132 */
2133 snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u.ddc",
2134 le16_to_cpu(ver.hw_variant),
2135 le16_to_cpu(params->dev_revid));
2136
2137 kfree_skb(skb);
2138
2139 if (fw->size < 644) {
2140 BT_ERR("%s: Invalid size of firmware file (%zu)",
2141 hdev->name, fw->size);
2142 err = -EBADF;
2143 goto done;
2144 }
2145
2146 set_bit(BTUSB_DOWNLOADING, &data->flags);
2147
2148 /* Start the firmware download transaction with the Init fragment
2149 * represented by the 128 bytes of CSS header.
2150 */
2151 err = btintel_secure_send(hdev, 0x00, 128, fw->data);
2152 if (err < 0) {
2153 BT_ERR("%s: Failed to send firmware header (%d)",
2154 hdev->name, err);
2155 goto done;
2156 }
2157
2158 /* Send the 256 bytes of public key information from the firmware
2159 * as the PKey fragment.
2160 */
2161 err = btintel_secure_send(hdev, 0x03, 256, fw->data + 128);
2162 if (err < 0) {
2163 BT_ERR("%s: Failed to send firmware public key (%d)",
2164 hdev->name, err);
2165 goto done;
2166 }
2167
2168 /* Send the 256 bytes of signature information from the firmware
2169 * as the Sign fragment.
2170 */
2171 err = btintel_secure_send(hdev, 0x02, 256, fw->data + 388);
2172 if (err < 0) {
2173 BT_ERR("%s: Failed to send firmware signature (%d)",
2174 hdev->name, err);
2175 goto done;
2176 }
2177
2178 fw_ptr = fw->data + 644;
2179 frag_len = 0;
2180
2181 while (fw_ptr - fw->data < fw->size) {
2182 struct hci_command_hdr *cmd = (void *)(fw_ptr + frag_len);
2183
2184 frag_len += sizeof(*cmd) + cmd->plen;
2185
2186 /* The parameter length of the secure send command requires
2187 * a 4 byte alignment. It happens so that the firmware file
2188 * contains proper Intel_NOP commands to align the fragments
2189 * as needed.
2190 *
2191 * Send set of commands with 4 byte alignment from the
2192 * firmware data buffer as a single Data fragement.
2193 */
2194 if (!(frag_len % 4)) {
2195 err = btintel_secure_send(hdev, 0x01, frag_len, fw_ptr);
2196 if (err < 0) {
2197 BT_ERR("%s: Failed to send firmware data (%d)",
2198 hdev->name, err);
2199 goto done;
2200 }
2201
2202 fw_ptr += frag_len;
2203 frag_len = 0;
2204 }
2205 }
2206
2207 set_bit(BTUSB_FIRMWARE_LOADED, &data->flags);
2208
2209 BT_INFO("%s: Waiting for firmware download to complete", hdev->name);
2210
2211 /* Before switching the device into operational mode and with that
2212 * booting the loaded firmware, wait for the bootloader notification
2213 * that all fragments have been successfully received.
2214 *
2215 * When the event processing receives the notification, then the
2216 * BTUSB_DOWNLOADING flag will be cleared.
2217 *
2218 * The firmware loading should not take longer than 5 seconds
2219 * and thus just timeout if that happens and fail the setup
2220 * of this device.
2221 */
2222 err = wait_on_bit_timeout(&data->flags, BTUSB_DOWNLOADING,
2223 TASK_INTERRUPTIBLE,
2224 msecs_to_jiffies(5000));
2225 if (err == 1) {
2226 BT_ERR("%s: Firmware loading interrupted", hdev->name);
2227 err = -EINTR;
2228 goto done;
2229 }
2230
2231 if (err) {
2232 BT_ERR("%s: Firmware loading timeout", hdev->name);
2233 err = -ETIMEDOUT;
2234 goto done;
2235 }
2236
2237 if (test_bit(BTUSB_FIRMWARE_FAILED, &data->flags)) {
2238 BT_ERR("%s: Firmware loading failed", hdev->name);
2239 err = -ENOEXEC;
2240 goto done;
2241 }
2242
2243 rettime = ktime_get();
2244 delta = ktime_sub(rettime, calltime);
2245 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2246
2247 BT_INFO("%s: Firmware loaded in %llu usecs", hdev->name, duration);
2248
2249 done:
2250 release_firmware(fw);
2251
2252 if (err < 0)
2253 return err;
2254
2255 calltime = ktime_get();
2256
2257 set_bit(BTUSB_BOOTING, &data->flags);
2258
2259 skb = __hci_cmd_sync(hdev, 0xfc01, sizeof(reset_param), reset_param,
2260 HCI_INIT_TIMEOUT);
2261 if (IS_ERR(skb))
2262 return PTR_ERR(skb);
2263
2264 kfree_skb(skb);
2265
2266 /* The bootloader will not indicate when the device is ready. This
2267 * is done by the operational firmware sending bootup notification.
2268 *
2269 * Booting into operational firmware should not take longer than
2270 * 1 second. However if that happens, then just fail the setup
2271 * since something went wrong.
2272 */
2273 BT_INFO("%s: Waiting for device to boot", hdev->name);
2274
2275 err = wait_on_bit_timeout(&data->flags, BTUSB_BOOTING,
2276 TASK_INTERRUPTIBLE,
2277 msecs_to_jiffies(1000));
2278
2279 if (err == 1) {
2280 BT_ERR("%s: Device boot interrupted", hdev->name);
2281 return -EINTR;
2282 }
2283
2284 if (err) {
2285 BT_ERR("%s: Device boot timeout", hdev->name);
2286 return -ETIMEDOUT;
2287 }
2288
2289 rettime = ktime_get();
2290 delta = ktime_sub(rettime, calltime);
2291 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2292
2293 BT_INFO("%s: Device booted in %llu usecs", hdev->name, duration);
2294
2295 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2296
2297 /* Once the device is running in operational mode, it needs to apply
2298 * the device configuration (DDC) parameters.
2299 *
2300 * The device can work without DDC parameters, so even if it fails
2301 * to load the file, no need to fail the setup.
2302 */
2303 btintel_load_ddc_config(hdev, fwname);
2304
2305 /* Set the event mask for Intel specific vendor events. This enables
2306 * a few extra events that are useful during general operation. It
2307 * does not enable any debugging related events.
2308 *
2309 * The device will function correctly without these events enabled
2310 * and thus no need to fail the setup.
2311 */
2312 btintel_set_event_mask(hdev, false);
2313
2314 return 0;
2315 }
2316
2317 static int btusb_shutdown_intel(struct hci_dev *hdev)
2318 {
2319 struct sk_buff *skb;
2320 long ret;
2321
2322 /* Some platforms have an issue with BT LED when the interface is
2323 * down or BT radio is turned off, which takes 5 seconds to BT LED
2324 * goes off. This command turns off the BT LED immediately.
2325 */
2326 skb = __hci_cmd_sync(hdev, 0xfc3f, 0, NULL, HCI_INIT_TIMEOUT);
2327 if (IS_ERR(skb)) {
2328 ret = PTR_ERR(skb);
2329 BT_ERR("%s: turning off Intel device LED failed (%ld)",
2330 hdev->name, ret);
2331 return ret;
2332 }
2333 kfree_skb(skb);
2334
2335 return 0;
2336 }
2337
2338 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
2339 const bdaddr_t *bdaddr)
2340 {
2341 struct sk_buff *skb;
2342 u8 buf[8];
2343 long ret;
2344
2345 buf[0] = 0xfe;
2346 buf[1] = sizeof(bdaddr_t);
2347 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
2348
2349 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2350 if (IS_ERR(skb)) {
2351 ret = PTR_ERR(skb);
2352 BT_ERR("%s: changing Marvell device address failed (%ld)",
2353 hdev->name, ret);
2354 return ret;
2355 }
2356 kfree_skb(skb);
2357
2358 return 0;
2359 }
2360
2361 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
2362 const bdaddr_t *bdaddr)
2363 {
2364 struct sk_buff *skb;
2365 u8 buf[10];
2366 long ret;
2367
2368 buf[0] = 0x01;
2369 buf[1] = 0x01;
2370 buf[2] = 0x00;
2371 buf[3] = sizeof(bdaddr_t);
2372 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
2373
2374 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2375 if (IS_ERR(skb)) {
2376 ret = PTR_ERR(skb);
2377 BT_ERR("%s: Change address command failed (%ld)",
2378 hdev->name, ret);
2379 return ret;
2380 }
2381 kfree_skb(skb);
2382
2383 return 0;
2384 }
2385
2386 #define QCA_DFU_PACKET_LEN 4096
2387
2388 #define QCA_GET_TARGET_VERSION 0x09
2389 #define QCA_CHECK_STATUS 0x05
2390 #define QCA_DFU_DOWNLOAD 0x01
2391
2392 #define QCA_SYSCFG_UPDATED 0x40
2393 #define QCA_PATCH_UPDATED 0x80
2394 #define QCA_DFU_TIMEOUT 3000
2395
2396 struct qca_version {
2397 __le32 rom_version;
2398 __le32 patch_version;
2399 __le32 ram_version;
2400 __le32 ref_clock;
2401 __u8 reserved[4];
2402 } __packed;
2403
2404 struct qca_rampatch_version {
2405 __le16 rom_version;
2406 __le16 patch_version;
2407 } __packed;
2408
2409 struct qca_device_info {
2410 u32 rom_version;
2411 u8 rampatch_hdr; /* length of header in rampatch */
2412 u8 nvm_hdr; /* length of header in NVM */
2413 u8 ver_offset; /* offset of version structure in rampatch */
2414 };
2415
2416 static const struct qca_device_info qca_devices_table[] = {
2417 { 0x00000100, 20, 4, 10 }, /* Rome 1.0 */
2418 { 0x00000101, 20, 4, 10 }, /* Rome 1.1 */
2419 { 0x00000200, 28, 4, 18 }, /* Rome 2.0 */
2420 { 0x00000201, 28, 4, 18 }, /* Rome 2.1 */
2421 { 0x00000300, 28, 4, 18 }, /* Rome 3.0 */
2422 { 0x00000302, 28, 4, 18 }, /* Rome 3.2 */
2423 };
2424
2425 static int btusb_qca_send_vendor_req(struct hci_dev *hdev, u8 request,
2426 void *data, u16 size)
2427 {
2428 struct btusb_data *btdata = hci_get_drvdata(hdev);
2429 struct usb_device *udev = btdata->udev;
2430 int pipe, err;
2431 u8 *buf;
2432
2433 buf = kmalloc(size, GFP_KERNEL);
2434 if (!buf)
2435 return -ENOMEM;
2436
2437 /* Found some of USB hosts have IOT issues with ours so that we should
2438 * not wait until HCI layer is ready.
2439 */
2440 pipe = usb_rcvctrlpipe(udev, 0);
2441 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
2442 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
2443 if (err < 0) {
2444 BT_ERR("%s: Failed to access otp area (%d)", hdev->name, err);
2445 goto done;
2446 }
2447
2448 memcpy(data, buf, size);
2449
2450 done:
2451 kfree(buf);
2452
2453 return err;
2454 }
2455
2456 static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
2457 const struct firmware *firmware,
2458 size_t hdr_size)
2459 {
2460 struct btusb_data *btdata = hci_get_drvdata(hdev);
2461 struct usb_device *udev = btdata->udev;
2462 size_t count, size, sent = 0;
2463 int pipe, len, err;
2464 u8 *buf;
2465
2466 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
2467 if (!buf)
2468 return -ENOMEM;
2469
2470 count = firmware->size;
2471
2472 size = min_t(size_t, count, hdr_size);
2473 memcpy(buf, firmware->data, size);
2474
2475 /* USB patches should go down to controller through USB path
2476 * because binary format fits to go down through USB channel.
2477 * USB control path is for patching headers and USB bulk is for
2478 * patch body.
2479 */
2480 pipe = usb_sndctrlpipe(udev, 0);
2481 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
2482 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
2483 if (err < 0) {
2484 BT_ERR("%s: Failed to send headers (%d)", hdev->name, err);
2485 goto done;
2486 }
2487
2488 sent += size;
2489 count -= size;
2490
2491 while (count) {
2492 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
2493
2494 memcpy(buf, firmware->data + sent, size);
2495
2496 pipe = usb_sndbulkpipe(udev, 0x02);
2497 err = usb_bulk_msg(udev, pipe, buf, size, &len,
2498 QCA_DFU_TIMEOUT);
2499 if (err < 0) {
2500 BT_ERR("%s: Failed to send body at %zd of %zd (%d)",
2501 hdev->name, sent, firmware->size, err);
2502 break;
2503 }
2504
2505 if (size != len) {
2506 BT_ERR("%s: Failed to get bulk buffer", hdev->name);
2507 err = -EILSEQ;
2508 break;
2509 }
2510
2511 sent += size;
2512 count -= size;
2513 }
2514
2515 done:
2516 kfree(buf);
2517 return err;
2518 }
2519
2520 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
2521 struct qca_version *ver,
2522 const struct qca_device_info *info)
2523 {
2524 struct qca_rampatch_version *rver;
2525 const struct firmware *fw;
2526 u32 ver_rom, ver_patch;
2527 u16 rver_rom, rver_patch;
2528 char fwname[64];
2529 int err;
2530
2531 ver_rom = le32_to_cpu(ver->rom_version);
2532 ver_patch = le32_to_cpu(ver->patch_version);
2533
2534 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom);
2535
2536 err = request_firmware(&fw, fwname, &hdev->dev);
2537 if (err) {
2538 BT_ERR("%s: failed to request rampatch file: %s (%d)",
2539 hdev->name, fwname, err);
2540 return err;
2541 }
2542
2543 BT_INFO("%s: using rampatch file: %s", hdev->name, fwname);
2544
2545 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
2546 rver_rom = le16_to_cpu(rver->rom_version);
2547 rver_patch = le16_to_cpu(rver->patch_version);
2548
2549 BT_INFO("%s: QCA: patch rome 0x%x build 0x%x, firmware rome 0x%x "
2550 "build 0x%x", hdev->name, rver_rom, rver_patch, ver_rom,
2551 ver_patch);
2552
2553 if (rver_rom != ver_rom || rver_patch <= ver_patch) {
2554 BT_ERR("%s: rampatch file version did not match with firmware",
2555 hdev->name);
2556 err = -EINVAL;
2557 goto done;
2558 }
2559
2560 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
2561
2562 done:
2563 release_firmware(fw);
2564
2565 return err;
2566 }
2567
2568 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
2569 struct qca_version *ver,
2570 const struct qca_device_info *info)
2571 {
2572 const struct firmware *fw;
2573 char fwname[64];
2574 int err;
2575
2576 snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin",
2577 le32_to_cpu(ver->rom_version));
2578
2579 err = request_firmware(&fw, fwname, &hdev->dev);
2580 if (err) {
2581 BT_ERR("%s: failed to request NVM file: %s (%d)",
2582 hdev->name, fwname, err);
2583 return err;
2584 }
2585
2586 BT_INFO("%s: using NVM file: %s", hdev->name, fwname);
2587
2588 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
2589
2590 release_firmware(fw);
2591
2592 return err;
2593 }
2594
2595 static int btusb_setup_qca(struct hci_dev *hdev)
2596 {
2597 const struct qca_device_info *info = NULL;
2598 struct qca_version ver;
2599 u32 ver_rom;
2600 u8 status;
2601 int i, err;
2602
2603 err = btusb_qca_send_vendor_req(hdev, QCA_GET_TARGET_VERSION, &ver,
2604 sizeof(ver));
2605 if (err < 0)
2606 return err;
2607
2608 ver_rom = le32_to_cpu(ver.rom_version);
2609 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
2610 if (ver_rom == qca_devices_table[i].rom_version)
2611 info = &qca_devices_table[i];
2612 }
2613 if (!info) {
2614 BT_ERR("%s: don't support firmware rome 0x%x", hdev->name,
2615 ver_rom);
2616 return -ENODEV;
2617 }
2618
2619 err = btusb_qca_send_vendor_req(hdev, QCA_CHECK_STATUS, &status,
2620 sizeof(status));
2621 if (err < 0)
2622 return err;
2623
2624 if (!(status & QCA_PATCH_UPDATED)) {
2625 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
2626 if (err < 0)
2627 return err;
2628 }
2629
2630 if (!(status & QCA_SYSCFG_UPDATED)) {
2631 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
2632 if (err < 0)
2633 return err;
2634 }
2635
2636 return 0;
2637 }
2638
2639 #ifdef CONFIG_BT_HCIBTUSB_BCM
2640 static inline int __set_diag_interface(struct hci_dev *hdev)
2641 {
2642 struct btusb_data *data = hci_get_drvdata(hdev);
2643 struct usb_interface *intf = data->diag;
2644 int i;
2645
2646 if (!data->diag)
2647 return -ENODEV;
2648
2649 data->diag_tx_ep = NULL;
2650 data->diag_rx_ep = NULL;
2651
2652 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2653 struct usb_endpoint_descriptor *ep_desc;
2654
2655 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2656
2657 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
2658 data->diag_tx_ep = ep_desc;
2659 continue;
2660 }
2661
2662 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
2663 data->diag_rx_ep = ep_desc;
2664 continue;
2665 }
2666 }
2667
2668 if (!data->diag_tx_ep || !data->diag_rx_ep) {
2669 BT_ERR("%s invalid diagnostic descriptors", hdev->name);
2670 return -ENODEV;
2671 }
2672
2673 return 0;
2674 }
2675
2676 static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable)
2677 {
2678 struct btusb_data *data = hci_get_drvdata(hdev);
2679 struct sk_buff *skb;
2680 struct urb *urb;
2681 unsigned int pipe;
2682
2683 if (!data->diag_tx_ep)
2684 return ERR_PTR(-ENODEV);
2685
2686 urb = usb_alloc_urb(0, GFP_KERNEL);
2687 if (!urb)
2688 return ERR_PTR(-ENOMEM);
2689
2690 skb = bt_skb_alloc(2, GFP_KERNEL);
2691 if (!skb) {
2692 usb_free_urb(urb);
2693 return ERR_PTR(-ENOMEM);
2694 }
2695
2696 *skb_put(skb, 1) = 0xf0;
2697 *skb_put(skb, 1) = enable;
2698
2699 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress);
2700
2701 usb_fill_bulk_urb(urb, data->udev, pipe,
2702 skb->data, skb->len, btusb_tx_complete, skb);
2703
2704 skb->dev = (void *)hdev;
2705
2706 return urb;
2707 }
2708
2709 static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable)
2710 {
2711 struct btusb_data *data = hci_get_drvdata(hdev);
2712 struct urb *urb;
2713
2714 if (!data->diag)
2715 return -ENODEV;
2716
2717 if (!test_bit(HCI_RUNNING, &hdev->flags))
2718 return -ENETDOWN;
2719
2720 urb = alloc_diag_urb(hdev, enable);
2721 if (IS_ERR(urb))
2722 return PTR_ERR(urb);
2723
2724 return submit_or_queue_tx_urb(hdev, urb);
2725 }
2726 #endif
2727
2728 static int btusb_probe(struct usb_interface *intf,
2729 const struct usb_device_id *id)
2730 {
2731 struct usb_endpoint_descriptor *ep_desc;
2732 struct btusb_data *data;
2733 struct hci_dev *hdev;
2734 unsigned ifnum_base;
2735 int i, err;
2736
2737 BT_DBG("intf %p id %p", intf, id);
2738
2739 /* interface numbers are hardcoded in the spec */
2740 if (intf->cur_altsetting->desc.bInterfaceNumber != 0) {
2741 if (!(id->driver_info & BTUSB_IFNUM_2))
2742 return -ENODEV;
2743 if (intf->cur_altsetting->desc.bInterfaceNumber != 2)
2744 return -ENODEV;
2745 }
2746
2747 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber;
2748
2749 if (!id->driver_info) {
2750 const struct usb_device_id *match;
2751
2752 match = usb_match_id(intf, blacklist_table);
2753 if (match)
2754 id = match;
2755 }
2756
2757 if (id->driver_info == BTUSB_IGNORE)
2758 return -ENODEV;
2759
2760 if (id->driver_info & BTUSB_ATH3012) {
2761 struct usb_device *udev = interface_to_usbdev(intf);
2762
2763 /* Old firmware would otherwise let ath3k driver load
2764 * patch and sysconfig files */
2765 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
2766 return -ENODEV;
2767 }
2768
2769 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
2770 if (!data)
2771 return -ENOMEM;
2772
2773 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2774 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2775
2776 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
2777 data->intr_ep = ep_desc;
2778 continue;
2779 }
2780
2781 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
2782 data->bulk_tx_ep = ep_desc;
2783 continue;
2784 }
2785
2786 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
2787 data->bulk_rx_ep = ep_desc;
2788 continue;
2789 }
2790 }
2791
2792 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
2793 return -ENODEV;
2794
2795 if (id->driver_info & BTUSB_AMP) {
2796 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
2797 data->cmdreq = 0x2b;
2798 } else {
2799 data->cmdreq_type = USB_TYPE_CLASS;
2800 data->cmdreq = 0x00;
2801 }
2802
2803 data->udev = interface_to_usbdev(intf);
2804 data->intf = intf;
2805
2806 INIT_WORK(&data->work, btusb_work);
2807 INIT_WORK(&data->waker, btusb_waker);
2808 init_usb_anchor(&data->deferred);
2809 init_usb_anchor(&data->tx_anchor);
2810 spin_lock_init(&data->txlock);
2811
2812 init_usb_anchor(&data->intr_anchor);
2813 init_usb_anchor(&data->bulk_anchor);
2814 init_usb_anchor(&data->isoc_anchor);
2815 init_usb_anchor(&data->diag_anchor);
2816 spin_lock_init(&data->rxlock);
2817
2818 if (id->driver_info & BTUSB_INTEL_NEW) {
2819 data->recv_event = btusb_recv_event_intel;
2820 data->recv_bulk = btusb_recv_bulk_intel;
2821 set_bit(BTUSB_BOOTLOADER, &data->flags);
2822 } else {
2823 data->recv_event = hci_recv_frame;
2824 data->recv_bulk = btusb_recv_bulk;
2825 }
2826
2827 hdev = hci_alloc_dev();
2828 if (!hdev)
2829 return -ENOMEM;
2830
2831 hdev->bus = HCI_USB;
2832 hci_set_drvdata(hdev, data);
2833
2834 if (id->driver_info & BTUSB_AMP)
2835 hdev->dev_type = HCI_AMP;
2836 else
2837 hdev->dev_type = HCI_PRIMARY;
2838
2839 data->hdev = hdev;
2840
2841 SET_HCIDEV_DEV(hdev, &intf->dev);
2842
2843 hdev->open = btusb_open;
2844 hdev->close = btusb_close;
2845 hdev->flush = btusb_flush;
2846 hdev->send = btusb_send_frame;
2847 hdev->notify = btusb_notify;
2848
2849 if (id->driver_info & BTUSB_BCM2045)
2850 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
2851
2852 if (id->driver_info & BTUSB_BCM92035)
2853 hdev->setup = btusb_setup_bcm92035;
2854
2855 #ifdef CONFIG_BT_HCIBTUSB_BCM
2856 if (id->driver_info & BTUSB_BCM_PATCHRAM) {
2857 hdev->manufacturer = 15;
2858 hdev->setup = btbcm_setup_patchram;
2859 hdev->set_diag = btusb_bcm_set_diag;
2860 hdev->set_bdaddr = btbcm_set_bdaddr;
2861
2862 /* Broadcom LM_DIAG Interface numbers are hardcoded */
2863 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
2864 }
2865
2866 if (id->driver_info & BTUSB_BCM_APPLE) {
2867 hdev->manufacturer = 15;
2868 hdev->setup = btbcm_setup_apple;
2869 hdev->set_diag = btusb_bcm_set_diag;
2870
2871 /* Broadcom LM_DIAG Interface numbers are hardcoded */
2872 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
2873 }
2874 #endif
2875
2876 if (id->driver_info & BTUSB_INTEL) {
2877 hdev->manufacturer = 2;
2878 hdev->setup = btusb_setup_intel;
2879 hdev->shutdown = btusb_shutdown_intel;
2880 hdev->set_diag = btintel_set_diag_mfg;
2881 hdev->set_bdaddr = btintel_set_bdaddr;
2882 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
2883 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
2884 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks);
2885 }
2886
2887 if (id->driver_info & BTUSB_INTEL_NEW) {
2888 hdev->manufacturer = 2;
2889 hdev->send = btusb_send_frame_intel;
2890 hdev->setup = btusb_setup_intel_new;
2891 hdev->hw_error = btintel_hw_error;
2892 hdev->set_diag = btintel_set_diag;
2893 hdev->set_bdaddr = btintel_set_bdaddr;
2894 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
2895 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks);
2896 }
2897
2898 if (id->driver_info & BTUSB_MARVELL)
2899 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
2900
2901 if (id->driver_info & BTUSB_SWAVE) {
2902 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
2903 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
2904 }
2905
2906 if (id->driver_info & BTUSB_INTEL_BOOT) {
2907 hdev->manufacturer = 2;
2908 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
2909 }
2910
2911 if (id->driver_info & BTUSB_ATH3012) {
2912 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
2913 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
2914 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
2915 }
2916
2917 if (id->driver_info & BTUSB_QCA_ROME) {
2918 data->setup_on_usb = btusb_setup_qca;
2919 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
2920 }
2921
2922 #ifdef CONFIG_BT_HCIBTUSB_RTL
2923 if (id->driver_info & BTUSB_REALTEK) {
2924 hdev->setup = btrtl_setup_realtek;
2925
2926 /* Realtek devices lose their updated firmware over suspend,
2927 * but the USB hub doesn't notice any status change.
2928 * Explicitly request a device reset on resume.
2929 */
2930 set_bit(BTUSB_RESET_RESUME, &data->flags);
2931 }
2932 #endif
2933
2934 if (id->driver_info & BTUSB_AMP) {
2935 /* AMP controllers do not support SCO packets */
2936 data->isoc = NULL;
2937 } else {
2938 /* Interface orders are hardcoded in the specification */
2939 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1);
2940 }
2941
2942 if (!reset)
2943 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
2944
2945 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
2946 if (!disable_scofix)
2947 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
2948 }
2949
2950 if (id->driver_info & BTUSB_BROKEN_ISOC)
2951 data->isoc = NULL;
2952
2953 if (id->driver_info & BTUSB_DIGIANSWER) {
2954 data->cmdreq_type = USB_TYPE_VENDOR;
2955 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
2956 }
2957
2958 if (id->driver_info & BTUSB_CSR) {
2959 struct usb_device *udev = data->udev;
2960 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
2961
2962 /* Old firmware would otherwise execute USB reset */
2963 if (bcdDevice < 0x117)
2964 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
2965
2966 /* Fake CSR devices with broken commands */
2967 if (bcdDevice <= 0x100 || bcdDevice == 0x134)
2968 hdev->setup = btusb_setup_csr;
2969
2970 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
2971 }
2972
2973 if (id->driver_info & BTUSB_SNIFFER) {
2974 struct usb_device *udev = data->udev;
2975
2976 /* New sniffer firmware has crippled HCI interface */
2977 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
2978 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
2979 }
2980
2981 if (id->driver_info & BTUSB_INTEL_BOOT) {
2982 /* A bug in the bootloader causes that interrupt interface is
2983 * only enabled after receiving SetInterface(0, AltSetting=0).
2984 */
2985 err = usb_set_interface(data->udev, 0, 0);
2986 if (err < 0) {
2987 BT_ERR("failed to set interface 0, alt 0 %d", err);
2988 hci_free_dev(hdev);
2989 return err;
2990 }
2991 }
2992
2993 if (data->isoc) {
2994 err = usb_driver_claim_interface(&btusb_driver,
2995 data->isoc, data);
2996 if (err < 0) {
2997 hci_free_dev(hdev);
2998 return err;
2999 }
3000 }
3001
3002 #ifdef CONFIG_BT_HCIBTUSB_BCM
3003 if (data->diag) {
3004 if (!usb_driver_claim_interface(&btusb_driver,
3005 data->diag, data))
3006 __set_diag_interface(hdev);
3007 else
3008 data->diag = NULL;
3009 }
3010 #endif
3011
3012 err = hci_register_dev(hdev);
3013 if (err < 0) {
3014 hci_free_dev(hdev);
3015 return err;
3016 }
3017
3018 usb_set_intfdata(intf, data);
3019
3020 return 0;
3021 }
3022
3023 static void btusb_disconnect(struct usb_interface *intf)
3024 {
3025 struct btusb_data *data = usb_get_intfdata(intf);
3026 struct hci_dev *hdev;
3027
3028 BT_DBG("intf %p", intf);
3029
3030 if (!data)
3031 return;
3032
3033 hdev = data->hdev;
3034 usb_set_intfdata(data->intf, NULL);
3035
3036 if (data->isoc)
3037 usb_set_intfdata(data->isoc, NULL);
3038
3039 if (data->diag)
3040 usb_set_intfdata(data->diag, NULL);
3041
3042 hci_unregister_dev(hdev);
3043
3044 if (intf == data->intf) {
3045 if (data->isoc)
3046 usb_driver_release_interface(&btusb_driver, data->isoc);
3047 if (data->diag)
3048 usb_driver_release_interface(&btusb_driver, data->diag);
3049 } else if (intf == data->isoc) {
3050 if (data->diag)
3051 usb_driver_release_interface(&btusb_driver, data->diag);
3052 usb_driver_release_interface(&btusb_driver, data->intf);
3053 } else if (intf == data->diag) {
3054 usb_driver_release_interface(&btusb_driver, data->intf);
3055 if (data->isoc)
3056 usb_driver_release_interface(&btusb_driver, data->isoc);
3057 }
3058
3059 hci_free_dev(hdev);
3060 }
3061
3062 #ifdef CONFIG_PM
3063 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
3064 {
3065 struct btusb_data *data = usb_get_intfdata(intf);
3066
3067 BT_DBG("intf %p", intf);
3068
3069 if (data->suspend_count++)
3070 return 0;
3071
3072 spin_lock_irq(&data->txlock);
3073 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
3074 set_bit(BTUSB_SUSPENDING, &data->flags);
3075 spin_unlock_irq(&data->txlock);
3076 } else {
3077 spin_unlock_irq(&data->txlock);
3078 data->suspend_count--;
3079 return -EBUSY;
3080 }
3081
3082 cancel_work_sync(&data->work);
3083
3084 btusb_stop_traffic(data);
3085 usb_kill_anchored_urbs(&data->tx_anchor);
3086
3087 /* Optionally request a device reset on resume, but only when
3088 * wakeups are disabled. If wakeups are enabled we assume the
3089 * device will stay powered up throughout suspend.
3090 */
3091 if (test_bit(BTUSB_RESET_RESUME, &data->flags) &&
3092 !device_may_wakeup(&data->udev->dev))
3093 data->udev->reset_resume = 1;
3094
3095 return 0;
3096 }
3097
3098 static void play_deferred(struct btusb_data *data)
3099 {
3100 struct urb *urb;
3101 int err;
3102
3103 while ((urb = usb_get_from_anchor(&data->deferred))) {
3104 err = usb_submit_urb(urb, GFP_ATOMIC);
3105 if (err < 0)
3106 break;
3107
3108 data->tx_in_flight++;
3109 }
3110 usb_scuttle_anchored_urbs(&data->deferred);
3111 }
3112
3113 static int btusb_resume(struct usb_interface *intf)
3114 {
3115 struct btusb_data *data = usb_get_intfdata(intf);
3116 struct hci_dev *hdev = data->hdev;
3117 int err = 0;
3118
3119 BT_DBG("intf %p", intf);
3120
3121 if (--data->suspend_count)
3122 return 0;
3123
3124 if (!test_bit(HCI_RUNNING, &hdev->flags))
3125 goto done;
3126
3127 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
3128 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
3129 if (err < 0) {
3130 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
3131 goto failed;
3132 }
3133 }
3134
3135 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
3136 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
3137 if (err < 0) {
3138 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
3139 goto failed;
3140 }
3141
3142 btusb_submit_bulk_urb(hdev, GFP_NOIO);
3143 }
3144
3145 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
3146 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
3147 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
3148 else
3149 btusb_submit_isoc_urb(hdev, GFP_NOIO);
3150 }
3151
3152 spin_lock_irq(&data->txlock);
3153 play_deferred(data);
3154 clear_bit(BTUSB_SUSPENDING, &data->flags);
3155 spin_unlock_irq(&data->txlock);
3156 schedule_work(&data->work);
3157
3158 return 0;
3159
3160 failed:
3161 usb_scuttle_anchored_urbs(&data->deferred);
3162 done:
3163 spin_lock_irq(&data->txlock);
3164 clear_bit(BTUSB_SUSPENDING, &data->flags);
3165 spin_unlock_irq(&data->txlock);
3166
3167 return err;
3168 }
3169 #endif
3170
3171 static struct usb_driver btusb_driver = {
3172 .name = "btusb",
3173 .probe = btusb_probe,
3174 .disconnect = btusb_disconnect,
3175 #ifdef CONFIG_PM
3176 .suspend = btusb_suspend,
3177 .resume = btusb_resume,
3178 #endif
3179 .id_table = btusb_table,
3180 .supports_autosuspend = 1,
3181 .disable_hub_initiated_lpm = 1,
3182 };
3183
3184 module_usb_driver(btusb_driver);
3185
3186 module_param(disable_scofix, bool, 0644);
3187 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
3188
3189 module_param(force_scofix, bool, 0644);
3190 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
3191
3192 module_param(reset, bool, 0644);
3193 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
3194
3195 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
3196 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
3197 MODULE_VERSION(VERSION);
3198 MODULE_LICENSE("GPL");
Linux kernel - Deliverables
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