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mei: me: add cannon point device ids
[linux/fpc-iii.git] / drivers / bluetooth / btusb.c
blob76980e78ae565c2e6e55a146cb6590cb0dea7021
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/usb/quirks.h>
27 #include <linux/firmware.h>
28 #include <linux/of_device.h>
29 #include <linux/of_irq.h>
30 #include <linux/suspend.h>
31 #include <asm/unaligned.h>
32
33 #include <net/bluetooth/bluetooth.h>
34 #include <net/bluetooth/hci_core.h>
35
36 #include "btintel.h"
37 #include "btbcm.h"
38 #include "btrtl.h"
39
40 #define VERSION "0.8"
41
42 static bool disable_scofix;
43 static bool force_scofix;
44
45 static bool reset = true;
46
47 static struct usb_driver btusb_driver;
48
49 #define BTUSB_IGNORE 0x01
50 #define BTUSB_DIGIANSWER 0x02
51 #define BTUSB_CSR 0x04
52 #define BTUSB_SNIFFER 0x08
53 #define BTUSB_BCM92035 0x10
54 #define BTUSB_BROKEN_ISOC 0x20
55 #define BTUSB_WRONG_SCO_MTU 0x40
56 #define BTUSB_ATH3012 0x80
57 #define BTUSB_INTEL 0x100
58 #define BTUSB_INTEL_BOOT 0x200
59 #define BTUSB_BCM_PATCHRAM 0x400
60 #define BTUSB_MARVELL 0x800
61 #define BTUSB_SWAVE 0x1000
62 #define BTUSB_INTEL_NEW 0x2000
63 #define BTUSB_AMP 0x4000
64 #define BTUSB_QCA_ROME 0x8000
65 #define BTUSB_BCM_APPLE 0x10000
66 #define BTUSB_REALTEK 0x20000
67 #define BTUSB_BCM2045 0x40000
68 #define BTUSB_IFNUM_2 0x80000
69 #define BTUSB_CW6622 0x100000
70
71 static const struct usb_device_id btusb_table[] = {
72 /* Generic Bluetooth USB device */
73 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
74
75 /* Generic Bluetooth AMP device */
76 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP },
77
78 /* Generic Bluetooth USB interface */
79 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) },
80
81 /* Apple-specific (Broadcom) devices */
82 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01),
83 .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 },
84
85 /* MediaTek MT76x0E */
86 { USB_DEVICE(0x0e8d, 0x763f) },
87
88 /* Broadcom SoftSailing reporting vendor specific */
89 { USB_DEVICE(0x0a5c, 0x21e1) },
90
91 /* Apple MacBookPro 7,1 */
92 { USB_DEVICE(0x05ac, 0x8213) },
93
94 /* Apple iMac11,1 */
95 { USB_DEVICE(0x05ac, 0x8215) },
96
97 /* Apple MacBookPro6,2 */
98 { USB_DEVICE(0x05ac, 0x8218) },
99
100 /* Apple MacBookAir3,1, MacBookAir3,2 */
101 { USB_DEVICE(0x05ac, 0x821b) },
102
103 /* Apple MacBookAir4,1 */
104 { USB_DEVICE(0x05ac, 0x821f) },
105
106 /* Apple MacBookPro8,2 */
107 { USB_DEVICE(0x05ac, 0x821a) },
108
109 /* Apple MacMini5,1 */
110 { USB_DEVICE(0x05ac, 0x8281) },
111
112 /* AVM BlueFRITZ! USB v2.0 */
113 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE },
114
115 /* Bluetooth Ultraport Module from IBM */
116 { USB_DEVICE(0x04bf, 0x030a) },
117
118 /* ALPS Modules with non-standard id */
119 { USB_DEVICE(0x044e, 0x3001) },
120 { USB_DEVICE(0x044e, 0x3002) },
121
122 /* Ericsson with non-standard id */
123 { USB_DEVICE(0x0bdb, 0x1002) },
124
125 /* Canyon CN-BTU1 with HID interfaces */
126 { USB_DEVICE(0x0c10, 0x0000) },
127
128 /* Broadcom BCM20702A0 */
129 { USB_DEVICE(0x413c, 0x8197) },
130
131 /* Broadcom BCM20702B0 (Dynex/Insignia) */
132 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM },
133
134 /* Broadcom BCM43142A0 (Foxconn/Lenovo) */
135 { USB_VENDOR_AND_INTERFACE_INFO(0x105b, 0xff, 0x01, 0x01),
136 .driver_info = BTUSB_BCM_PATCHRAM },
137
138 /* Broadcom BCM920703 (HTC Vive) */
139 { USB_VENDOR_AND_INTERFACE_INFO(0x0bb4, 0xff, 0x01, 0x01),
140 .driver_info = BTUSB_BCM_PATCHRAM },
141
142 /* Foxconn - Hon Hai */
143 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01),
144 .driver_info = BTUSB_BCM_PATCHRAM },
145
146 /* Lite-On Technology - Broadcom based */
147 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01),
148 .driver_info = BTUSB_BCM_PATCHRAM },
149
150 /* Broadcom devices with vendor specific id */
151 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01),
152 .driver_info = BTUSB_BCM_PATCHRAM },
153
154 /* ASUSTek Computer - Broadcom based */
155 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01),
156 .driver_info = BTUSB_BCM_PATCHRAM },
157
158 /* Belkin F8065bf - Broadcom based */
159 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01),
160 .driver_info = BTUSB_BCM_PATCHRAM },
161
162 /* IMC Networks - Broadcom based */
163 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01),
164 .driver_info = BTUSB_BCM_PATCHRAM },
165
166 /* Dell Computer - Broadcom based */
167 { USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01),
168 .driver_info = BTUSB_BCM_PATCHRAM },
169
170 /* Toshiba Corp - Broadcom based */
171 { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01),
172 .driver_info = BTUSB_BCM_PATCHRAM },
173
174 /* Intel Bluetooth USB Bootloader (RAM module) */
175 { USB_DEVICE(0x8087, 0x0a5a),
176 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
177
178 { } /* Terminating entry */
179 };
180
181 MODULE_DEVICE_TABLE(usb, btusb_table);
182
183 static const struct usb_device_id blacklist_table[] = {
184 /* CSR BlueCore devices */
185 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
186
187 /* Broadcom BCM2033 without firmware */
188 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
189
190 /* Broadcom BCM2045 devices */
191 { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 },
192
193 /* Atheros 3011 with sflash firmware */
194 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
195 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
196 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE },
197 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
198 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
199 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
200 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
201
202 /* Atheros AR9285 Malbec with sflash firmware */
203 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
204
205 /* Atheros 3012 with sflash firmware */
206 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
207 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
208 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
209 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
210 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
211 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
212 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
213 { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 },
214 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
215 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
216 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
217 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
218 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
219 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
220 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
221 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
222 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
223 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
224 { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 },
225 { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 },
226 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
227 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
228 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
229 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
230 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
231 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
232 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
233 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
234 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
235 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
236 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
237 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
238 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
239 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 },
240 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
241 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
242 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
243 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
244 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
245 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
246 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
247 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 },
248 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
249 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
250 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
251 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
252 { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 },
253 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
254 { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 },
255 { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 },
256
257 /* Atheros AR5BBU12 with sflash firmware */
258 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
259
260 /* Atheros AR5BBU12 with sflash firmware */
261 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
262 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
263
264 /* QCA ROME chipset */
265 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME },
266 { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME },
267 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME },
268 { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME },
269 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME },
270 { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME },
271 { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME },
272 { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME },
273 { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME },
274 { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME },
275
276 /* Broadcom BCM2035 */
277 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
278 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
279 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
280
281 /* Broadcom BCM2045 */
282 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
283 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
284
285 /* IBM/Lenovo ThinkPad with Broadcom chip */
286 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
287 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
288
289 /* HP laptop with Broadcom chip */
290 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
291
292 /* Dell laptop with Broadcom chip */
293 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
294
295 /* Dell Wireless 370 and 410 devices */
296 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
297 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
298
299 /* Belkin F8T012 and F8T013 devices */
300 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
301 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
302
303 /* Asus WL-BTD202 device */
304 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
305
306 /* Kensington Bluetooth USB adapter */
307 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
308
309 /* RTX Telecom based adapters with buggy SCO support */
310 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
311 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
312
313 /* CONWISE Technology based adapters with buggy SCO support */
314 { USB_DEVICE(0x0e5e, 0x6622),
315 .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622},
316
317 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
318 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE },
319
320 /* Digianswer devices */
321 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
322 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
323
324 /* CSR BlueCore Bluetooth Sniffer */
325 { USB_DEVICE(0x0a12, 0x0002),
326 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
327
328 /* Frontline ComProbe Bluetooth Sniffer */
329 { USB_DEVICE(0x16d3, 0x0002),
330 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
331
332 /* Marvell Bluetooth devices */
333 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
334 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
335 { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL },
336
337 /* Intel Bluetooth devices */
338 { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_NEW },
339 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
340 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
341 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL },
342 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_NEW },
343 { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL },
344 { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_NEW },
345
346 /* Other Intel Bluetooth devices */
347 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
348 .driver_info = BTUSB_IGNORE },
349
350 /* Realtek Bluetooth devices */
351 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
352 .driver_info = BTUSB_REALTEK },
353
354 /* Additional Realtek 8723AE Bluetooth devices */
355 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
356 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
357
358 /* Additional Realtek 8723BE Bluetooth devices */
359 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
360 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
361 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
362 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
363 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
364 { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK },
365
366 /* Additional Realtek 8821AE Bluetooth devices */
367 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
368 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
369 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
370 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
371 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
372
373 /* Silicon Wave based devices */
374 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE },
375
376 { } /* Terminating entry */
377 };
378
379 #define BTUSB_MAX_ISOC_FRAMES 10
380
381 #define BTUSB_INTR_RUNNING 0
382 #define BTUSB_BULK_RUNNING 1
383 #define BTUSB_ISOC_RUNNING 2
384 #define BTUSB_SUSPENDING 3
385 #define BTUSB_DID_ISO_RESUME 4
386 #define BTUSB_BOOTLOADER 5
387 #define BTUSB_DOWNLOADING 6
388 #define BTUSB_FIRMWARE_LOADED 7
389 #define BTUSB_FIRMWARE_FAILED 8
390 #define BTUSB_BOOTING 9
391 #define BTUSB_DIAG_RUNNING 10
392 #define BTUSB_OOB_WAKE_ENABLED 11
393
394 struct btusb_data {
395 struct hci_dev *hdev;
396 struct usb_device *udev;
397 struct usb_interface *intf;
398 struct usb_interface *isoc;
399 struct usb_interface *diag;
400 unsigned isoc_ifnum;
401
402 unsigned long flags;
403
404 struct work_struct work;
405 struct work_struct waker;
406
407 struct usb_anchor deferred;
408 struct usb_anchor tx_anchor;
409 int tx_in_flight;
410 spinlock_t txlock;
411
412 struct usb_anchor intr_anchor;
413 struct usb_anchor bulk_anchor;
414 struct usb_anchor isoc_anchor;
415 struct usb_anchor diag_anchor;
416 spinlock_t rxlock;
417
418 struct sk_buff *evt_skb;
419 struct sk_buff *acl_skb;
420 struct sk_buff *sco_skb;
421
422 struct usb_endpoint_descriptor *intr_ep;
423 struct usb_endpoint_descriptor *bulk_tx_ep;
424 struct usb_endpoint_descriptor *bulk_rx_ep;
425 struct usb_endpoint_descriptor *isoc_tx_ep;
426 struct usb_endpoint_descriptor *isoc_rx_ep;
427 struct usb_endpoint_descriptor *diag_tx_ep;
428 struct usb_endpoint_descriptor *diag_rx_ep;
429
430 __u8 cmdreq_type;
431 __u8 cmdreq;
432
433 unsigned int sco_num;
434 int isoc_altsetting;
435 int suspend_count;
436
437 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
438 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
439
440 int (*setup_on_usb)(struct hci_dev *hdev);
441
442 int oob_wake_irq; /* irq for out-of-band wake-on-bt */
443 };
444
445 static inline void btusb_free_frags(struct btusb_data *data)
446 {
447 unsigned long flags;
448
449 spin_lock_irqsave(&data->rxlock, flags);
450
451 kfree_skb(data->evt_skb);
452 data->evt_skb = NULL;
453
454 kfree_skb(data->acl_skb);
455 data->acl_skb = NULL;
456
457 kfree_skb(data->sco_skb);
458 data->sco_skb = NULL;
459
460 spin_unlock_irqrestore(&data->rxlock, flags);
461 }
462
463 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
464 {
465 struct sk_buff *skb;
466 int err = 0;
467
468 spin_lock(&data->rxlock);
469 skb = data->evt_skb;
470
471 while (count) {
472 int len;
473
474 if (!skb) {
475 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
476 if (!skb) {
477 err = -ENOMEM;
478 break;
479 }
480
481 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
482 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE;
483 }
484
485 len = min_t(uint, hci_skb_expect(skb), count);
486 skb_put_data(skb, buffer, len);
487
488 count -= len;
489 buffer += len;
490 hci_skb_expect(skb) -= len;
491
492 if (skb->len == HCI_EVENT_HDR_SIZE) {
493 /* Complete event header */
494 hci_skb_expect(skb) = hci_event_hdr(skb)->plen;
495
496 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
497 kfree_skb(skb);
498 skb = NULL;
499
500 err = -EILSEQ;
501 break;
502 }
503 }
504
505 if (!hci_skb_expect(skb)) {
506 /* Complete frame */
507 data->recv_event(data->hdev, skb);
508 skb = NULL;
509 }
510 }
511
512 data->evt_skb = skb;
513 spin_unlock(&data->rxlock);
514
515 return err;
516 }
517
518 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
519 {
520 struct sk_buff *skb;
521 int err = 0;
522
523 spin_lock(&data->rxlock);
524 skb = data->acl_skb;
525
526 while (count) {
527 int len;
528
529 if (!skb) {
530 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
531 if (!skb) {
532 err = -ENOMEM;
533 break;
534 }
535
536 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT;
537 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE;
538 }
539
540 len = min_t(uint, hci_skb_expect(skb), count);
541 skb_put_data(skb, buffer, len);
542
543 count -= len;
544 buffer += len;
545 hci_skb_expect(skb) -= len;
546
547 if (skb->len == HCI_ACL_HDR_SIZE) {
548 __le16 dlen = hci_acl_hdr(skb)->dlen;
549
550 /* Complete ACL header */
551 hci_skb_expect(skb) = __le16_to_cpu(dlen);
552
553 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
554 kfree_skb(skb);
555 skb = NULL;
556
557 err = -EILSEQ;
558 break;
559 }
560 }
561
562 if (!hci_skb_expect(skb)) {
563 /* Complete frame */
564 hci_recv_frame(data->hdev, skb);
565 skb = NULL;
566 }
567 }
568
569 data->acl_skb = skb;
570 spin_unlock(&data->rxlock);
571
572 return err;
573 }
574
575 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
576 {
577 struct sk_buff *skb;
578 int err = 0;
579
580 spin_lock(&data->rxlock);
581 skb = data->sco_skb;
582
583 while (count) {
584 int len;
585
586 if (!skb) {
587 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
588 if (!skb) {
589 err = -ENOMEM;
590 break;
591 }
592
593 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT;
594 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE;
595 }
596
597 len = min_t(uint, hci_skb_expect(skb), count);
598 skb_put_data(skb, buffer, len);
599
600 count -= len;
601 buffer += len;
602 hci_skb_expect(skb) -= len;
603
604 if (skb->len == HCI_SCO_HDR_SIZE) {
605 /* Complete SCO header */
606 hci_skb_expect(skb) = hci_sco_hdr(skb)->dlen;
607
608 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
609 kfree_skb(skb);
610 skb = NULL;
611
612 err = -EILSEQ;
613 break;
614 }
615 }
616
617 if (!hci_skb_expect(skb)) {
618 /* Complete frame */
619 hci_recv_frame(data->hdev, skb);
620 skb = NULL;
621 }
622 }
623
624 data->sco_skb = skb;
625 spin_unlock(&data->rxlock);
626
627 return err;
628 }
629
630 static void btusb_intr_complete(struct urb *urb)
631 {
632 struct hci_dev *hdev = urb->context;
633 struct btusb_data *data = hci_get_drvdata(hdev);
634 int err;
635
636 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
637 urb->actual_length);
638
639 if (!test_bit(HCI_RUNNING, &hdev->flags))
640 return;
641
642 if (urb->status == 0) {
643 hdev->stat.byte_rx += urb->actual_length;
644
645 if (btusb_recv_intr(data, urb->transfer_buffer,
646 urb->actual_length) < 0) {
647 bt_dev_err(hdev, "corrupted event packet");
648 hdev->stat.err_rx++;
649 }
650 } else if (urb->status == -ENOENT) {
651 /* Avoid suspend failed when usb_kill_urb */
652 return;
653 }
654
655 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
656 return;
657
658 usb_mark_last_busy(data->udev);
659 usb_anchor_urb(urb, &data->intr_anchor);
660
661 err = usb_submit_urb(urb, GFP_ATOMIC);
662 if (err < 0) {
663 /* -EPERM: urb is being killed;
664 * -ENODEV: device got disconnected
665 */
666 if (err != -EPERM && err != -ENODEV)
667 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
668 urb, -err);
669 usb_unanchor_urb(urb);
670 }
671 }
672
673 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
674 {
675 struct btusb_data *data = hci_get_drvdata(hdev);
676 struct urb *urb;
677 unsigned char *buf;
678 unsigned int pipe;
679 int err, size;
680
681 BT_DBG("%s", hdev->name);
682
683 if (!data->intr_ep)
684 return -ENODEV;
685
686 urb = usb_alloc_urb(0, mem_flags);
687 if (!urb)
688 return -ENOMEM;
689
690 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
691
692 buf = kmalloc(size, mem_flags);
693 if (!buf) {
694 usb_free_urb(urb);
695 return -ENOMEM;
696 }
697
698 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
699
700 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
701 btusb_intr_complete, hdev, data->intr_ep->bInterval);
702
703 urb->transfer_flags |= URB_FREE_BUFFER;
704
705 usb_anchor_urb(urb, &data->intr_anchor);
706
707 err = usb_submit_urb(urb, mem_flags);
708 if (err < 0) {
709 if (err != -EPERM && err != -ENODEV)
710 bt_dev_err(hdev, "urb %p submission failed (%d)",
711 urb, -err);
712 usb_unanchor_urb(urb);
713 }
714
715 usb_free_urb(urb);
716
717 return err;
718 }
719
720 static void btusb_bulk_complete(struct urb *urb)
721 {
722 struct hci_dev *hdev = urb->context;
723 struct btusb_data *data = hci_get_drvdata(hdev);
724 int err;
725
726 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
727 urb->actual_length);
728
729 if (!test_bit(HCI_RUNNING, &hdev->flags))
730 return;
731
732 if (urb->status == 0) {
733 hdev->stat.byte_rx += urb->actual_length;
734
735 if (data->recv_bulk(data, urb->transfer_buffer,
736 urb->actual_length) < 0) {
737 bt_dev_err(hdev, "corrupted ACL packet");
738 hdev->stat.err_rx++;
739 }
740 } else if (urb->status == -ENOENT) {
741 /* Avoid suspend failed when usb_kill_urb */
742 return;
743 }
744
745 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
746 return;
747
748 usb_anchor_urb(urb, &data->bulk_anchor);
749 usb_mark_last_busy(data->udev);
750
751 err = usb_submit_urb(urb, GFP_ATOMIC);
752 if (err < 0) {
753 /* -EPERM: urb is being killed;
754 * -ENODEV: device got disconnected
755 */
756 if (err != -EPERM && err != -ENODEV)
757 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
758 urb, -err);
759 usb_unanchor_urb(urb);
760 }
761 }
762
763 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
764 {
765 struct btusb_data *data = hci_get_drvdata(hdev);
766 struct urb *urb;
767 unsigned char *buf;
768 unsigned int pipe;
769 int err, size = HCI_MAX_FRAME_SIZE;
770
771 BT_DBG("%s", hdev->name);
772
773 if (!data->bulk_rx_ep)
774 return -ENODEV;
775
776 urb = usb_alloc_urb(0, mem_flags);
777 if (!urb)
778 return -ENOMEM;
779
780 buf = kmalloc(size, mem_flags);
781 if (!buf) {
782 usb_free_urb(urb);
783 return -ENOMEM;
784 }
785
786 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
787
788 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
789 btusb_bulk_complete, hdev);
790
791 urb->transfer_flags |= URB_FREE_BUFFER;
792
793 usb_mark_last_busy(data->udev);
794 usb_anchor_urb(urb, &data->bulk_anchor);
795
796 err = usb_submit_urb(urb, mem_flags);
797 if (err < 0) {
798 if (err != -EPERM && err != -ENODEV)
799 bt_dev_err(hdev, "urb %p submission failed (%d)",
800 urb, -err);
801 usb_unanchor_urb(urb);
802 }
803
804 usb_free_urb(urb);
805
806 return err;
807 }
808
809 static void btusb_isoc_complete(struct urb *urb)
810 {
811 struct hci_dev *hdev = urb->context;
812 struct btusb_data *data = hci_get_drvdata(hdev);
813 int i, err;
814
815 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
816 urb->actual_length);
817
818 if (!test_bit(HCI_RUNNING, &hdev->flags))
819 return;
820
821 if (urb->status == 0) {
822 for (i = 0; i < urb->number_of_packets; i++) {
823 unsigned int offset = urb->iso_frame_desc[i].offset;
824 unsigned int length = urb->iso_frame_desc[i].actual_length;
825
826 if (urb->iso_frame_desc[i].status)
827 continue;
828
829 hdev->stat.byte_rx += length;
830
831 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
832 length) < 0) {
833 bt_dev_err(hdev, "corrupted SCO packet");
834 hdev->stat.err_rx++;
835 }
836 }
837 } else if (urb->status == -ENOENT) {
838 /* Avoid suspend failed when usb_kill_urb */
839 return;
840 }
841
842 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
843 return;
844
845 usb_anchor_urb(urb, &data->isoc_anchor);
846
847 err = usb_submit_urb(urb, GFP_ATOMIC);
848 if (err < 0) {
849 /* -EPERM: urb is being killed;
850 * -ENODEV: device got disconnected
851 */
852 if (err != -EPERM && err != -ENODEV)
853 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
854 urb, -err);
855 usb_unanchor_urb(urb);
856 }
857 }
858
859 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
860 {
861 int i, offset = 0;
862
863 BT_DBG("len %d mtu %d", len, mtu);
864
865 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
866 i++, offset += mtu, len -= mtu) {
867 urb->iso_frame_desc[i].offset = offset;
868 urb->iso_frame_desc[i].length = mtu;
869 }
870
871 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
872 urb->iso_frame_desc[i].offset = offset;
873 urb->iso_frame_desc[i].length = len;
874 i++;
875 }
876
877 urb->number_of_packets = i;
878 }
879
880 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
881 {
882 struct btusb_data *data = hci_get_drvdata(hdev);
883 struct urb *urb;
884 unsigned char *buf;
885 unsigned int pipe;
886 int err, size;
887
888 BT_DBG("%s", hdev->name);
889
890 if (!data->isoc_rx_ep)
891 return -ENODEV;
892
893 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
894 if (!urb)
895 return -ENOMEM;
896
897 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
898 BTUSB_MAX_ISOC_FRAMES;
899
900 buf = kmalloc(size, mem_flags);
901 if (!buf) {
902 usb_free_urb(urb);
903 return -ENOMEM;
904 }
905
906 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
907
908 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
909 hdev, data->isoc_rx_ep->bInterval);
910
911 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
912
913 __fill_isoc_descriptor(urb, size,
914 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
915
916 usb_anchor_urb(urb, &data->isoc_anchor);
917
918 err = usb_submit_urb(urb, mem_flags);
919 if (err < 0) {
920 if (err != -EPERM && err != -ENODEV)
921 bt_dev_err(hdev, "urb %p submission failed (%d)",
922 urb, -err);
923 usb_unanchor_urb(urb);
924 }
925
926 usb_free_urb(urb);
927
928 return err;
929 }
930
931 static void btusb_diag_complete(struct urb *urb)
932 {
933 struct hci_dev *hdev = urb->context;
934 struct btusb_data *data = hci_get_drvdata(hdev);
935 int err;
936
937 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
938 urb->actual_length);
939
940 if (urb->status == 0) {
941 struct sk_buff *skb;
942
943 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC);
944 if (skb) {
945 skb_put_data(skb, urb->transfer_buffer,
946 urb->actual_length);
947 hci_recv_diag(hdev, skb);
948 }
949 } else if (urb->status == -ENOENT) {
950 /* Avoid suspend failed when usb_kill_urb */
951 return;
952 }
953
954 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags))
955 return;
956
957 usb_anchor_urb(urb, &data->diag_anchor);
958 usb_mark_last_busy(data->udev);
959
960 err = usb_submit_urb(urb, GFP_ATOMIC);
961 if (err < 0) {
962 /* -EPERM: urb is being killed;
963 * -ENODEV: device got disconnected
964 */
965 if (err != -EPERM && err != -ENODEV)
966 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
967 urb, -err);
968 usb_unanchor_urb(urb);
969 }
970 }
971
972 static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags)
973 {
974 struct btusb_data *data = hci_get_drvdata(hdev);
975 struct urb *urb;
976 unsigned char *buf;
977 unsigned int pipe;
978 int err, size = HCI_MAX_FRAME_SIZE;
979
980 BT_DBG("%s", hdev->name);
981
982 if (!data->diag_rx_ep)
983 return -ENODEV;
984
985 urb = usb_alloc_urb(0, mem_flags);
986 if (!urb)
987 return -ENOMEM;
988
989 buf = kmalloc(size, mem_flags);
990 if (!buf) {
991 usb_free_urb(urb);
992 return -ENOMEM;
993 }
994
995 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress);
996
997 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
998 btusb_diag_complete, hdev);
999
1000 urb->transfer_flags |= URB_FREE_BUFFER;
1001
1002 usb_mark_last_busy(data->udev);
1003 usb_anchor_urb(urb, &data->diag_anchor);
1004
1005 err = usb_submit_urb(urb, mem_flags);
1006 if (err < 0) {
1007 if (err != -EPERM && err != -ENODEV)
1008 bt_dev_err(hdev, "urb %p submission failed (%d)",
1009 urb, -err);
1010 usb_unanchor_urb(urb);
1011 }
1012
1013 usb_free_urb(urb);
1014
1015 return err;
1016 }
1017
1018 static void btusb_tx_complete(struct urb *urb)
1019 {
1020 struct sk_buff *skb = urb->context;
1021 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1022 struct btusb_data *data = hci_get_drvdata(hdev);
1023
1024 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1025 urb->actual_length);
1026
1027 if (!test_bit(HCI_RUNNING, &hdev->flags))
1028 goto done;
1029
1030 if (!urb->status)
1031 hdev->stat.byte_tx += urb->transfer_buffer_length;
1032 else
1033 hdev->stat.err_tx++;
1034
1035 done:
1036 spin_lock(&data->txlock);
1037 data->tx_in_flight--;
1038 spin_unlock(&data->txlock);
1039
1040 kfree(urb->setup_packet);
1041
1042 kfree_skb(skb);
1043 }
1044
1045 static void btusb_isoc_tx_complete(struct urb *urb)
1046 {
1047 struct sk_buff *skb = urb->context;
1048 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1049
1050 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1051 urb->actual_length);
1052
1053 if (!test_bit(HCI_RUNNING, &hdev->flags))
1054 goto done;
1055
1056 if (!urb->status)
1057 hdev->stat.byte_tx += urb->transfer_buffer_length;
1058 else
1059 hdev->stat.err_tx++;
1060
1061 done:
1062 kfree(urb->setup_packet);
1063
1064 kfree_skb(skb);
1065 }
1066
1067 static int btusb_open(struct hci_dev *hdev)
1068 {
1069 struct btusb_data *data = hci_get_drvdata(hdev);
1070 int err;
1071
1072 BT_DBG("%s", hdev->name);
1073
1074 err = usb_autopm_get_interface(data->intf);
1075 if (err < 0)
1076 return err;
1077
1078 /* Patching USB firmware files prior to starting any URBs of HCI path
1079 * It is more safe to use USB bulk channel for downloading USB patch
1080 */
1081 if (data->setup_on_usb) {
1082 err = data->setup_on_usb(hdev);
1083 if (err < 0)
1084 return err;
1085 }
1086
1087 data->intf->needs_remote_wakeup = 1;
1088 /* device specific wakeup source enabled and required for USB
1089 * remote wakeup while host is suspended
1090 */
1091 device_wakeup_enable(&data->udev->dev);
1092
1093 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
1094 goto done;
1095
1096 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
1097 if (err < 0)
1098 goto failed;
1099
1100 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1101 if (err < 0) {
1102 usb_kill_anchored_urbs(&data->intr_anchor);
1103 goto failed;
1104 }
1105
1106 set_bit(BTUSB_BULK_RUNNING, &data->flags);
1107 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1108
1109 if (data->diag) {
1110 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL))
1111 set_bit(BTUSB_DIAG_RUNNING, &data->flags);
1112 }
1113
1114 done:
1115 usb_autopm_put_interface(data->intf);
1116 return 0;
1117
1118 failed:
1119 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1120 usb_autopm_put_interface(data->intf);
1121 return err;
1122 }
1123
1124 static void btusb_stop_traffic(struct btusb_data *data)
1125 {
1126 usb_kill_anchored_urbs(&data->intr_anchor);
1127 usb_kill_anchored_urbs(&data->bulk_anchor);
1128 usb_kill_anchored_urbs(&data->isoc_anchor);
1129 usb_kill_anchored_urbs(&data->diag_anchor);
1130 }
1131
1132 static int btusb_close(struct hci_dev *hdev)
1133 {
1134 struct btusb_data *data = hci_get_drvdata(hdev);
1135 int err;
1136
1137 BT_DBG("%s", hdev->name);
1138
1139 cancel_work_sync(&data->work);
1140 cancel_work_sync(&data->waker);
1141
1142 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1143 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1144 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1145 clear_bit(BTUSB_DIAG_RUNNING, &data->flags);
1146
1147 btusb_stop_traffic(data);
1148 btusb_free_frags(data);
1149
1150 err = usb_autopm_get_interface(data->intf);
1151 if (err < 0)
1152 goto failed;
1153
1154 data->intf->needs_remote_wakeup = 0;
1155 device_wakeup_disable(&data->udev->dev);
1156 usb_autopm_put_interface(data->intf);
1157
1158 failed:
1159 usb_scuttle_anchored_urbs(&data->deferred);
1160 return 0;
1161 }
1162
1163 static int btusb_flush(struct hci_dev *hdev)
1164 {
1165 struct btusb_data *data = hci_get_drvdata(hdev);
1166
1167 BT_DBG("%s", hdev->name);
1168
1169 usb_kill_anchored_urbs(&data->tx_anchor);
1170 btusb_free_frags(data);
1171
1172 return 0;
1173 }
1174
1175 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
1176 {
1177 struct btusb_data *data = hci_get_drvdata(hdev);
1178 struct usb_ctrlrequest *dr;
1179 struct urb *urb;
1180 unsigned int pipe;
1181
1182 urb = usb_alloc_urb(0, GFP_KERNEL);
1183 if (!urb)
1184 return ERR_PTR(-ENOMEM);
1185
1186 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
1187 if (!dr) {
1188 usb_free_urb(urb);
1189 return ERR_PTR(-ENOMEM);
1190 }
1191
1192 dr->bRequestType = data->cmdreq_type;
1193 dr->bRequest = data->cmdreq;
1194 dr->wIndex = 0;
1195 dr->wValue = 0;
1196 dr->wLength = __cpu_to_le16(skb->len);
1197
1198 pipe = usb_sndctrlpipe(data->udev, 0x00);
1199
1200 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
1201 skb->data, skb->len, btusb_tx_complete, skb);
1202
1203 skb->dev = (void *)hdev;
1204
1205 return urb;
1206 }
1207
1208 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
1209 {
1210 struct btusb_data *data = hci_get_drvdata(hdev);
1211 struct urb *urb;
1212 unsigned int pipe;
1213
1214 if (!data->bulk_tx_ep)
1215 return ERR_PTR(-ENODEV);
1216
1217 urb = usb_alloc_urb(0, GFP_KERNEL);
1218 if (!urb)
1219 return ERR_PTR(-ENOMEM);
1220
1221 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
1222
1223 usb_fill_bulk_urb(urb, data->udev, pipe,
1224 skb->data, skb->len, btusb_tx_complete, skb);
1225
1226 skb->dev = (void *)hdev;
1227
1228 return urb;
1229 }
1230
1231 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
1232 {
1233 struct btusb_data *data = hci_get_drvdata(hdev);
1234 struct urb *urb;
1235 unsigned int pipe;
1236
1237 if (!data->isoc_tx_ep)
1238 return ERR_PTR(-ENODEV);
1239
1240 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
1241 if (!urb)
1242 return ERR_PTR(-ENOMEM);
1243
1244 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
1245
1246 usb_fill_int_urb(urb, data->udev, pipe,
1247 skb->data, skb->len, btusb_isoc_tx_complete,
1248 skb, data->isoc_tx_ep->bInterval);
1249
1250 urb->transfer_flags = URB_ISO_ASAP;
1251
1252 __fill_isoc_descriptor(urb, skb->len,
1253 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
1254
1255 skb->dev = (void *)hdev;
1256
1257 return urb;
1258 }
1259
1260 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
1261 {
1262 struct btusb_data *data = hci_get_drvdata(hdev);
1263 int err;
1264
1265 usb_anchor_urb(urb, &data->tx_anchor);
1266
1267 err = usb_submit_urb(urb, GFP_KERNEL);
1268 if (err < 0) {
1269 if (err != -EPERM && err != -ENODEV)
1270 bt_dev_err(hdev, "urb %p submission failed (%d)",
1271 urb, -err);
1272 kfree(urb->setup_packet);
1273 usb_unanchor_urb(urb);
1274 } else {
1275 usb_mark_last_busy(data->udev);
1276 }
1277
1278 usb_free_urb(urb);
1279 return err;
1280 }
1281
1282 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
1283 {
1284 struct btusb_data *data = hci_get_drvdata(hdev);
1285 unsigned long flags;
1286 bool suspending;
1287
1288 spin_lock_irqsave(&data->txlock, flags);
1289 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
1290 if (!suspending)
1291 data->tx_in_flight++;
1292 spin_unlock_irqrestore(&data->txlock, flags);
1293
1294 if (!suspending)
1295 return submit_tx_urb(hdev, urb);
1296
1297 usb_anchor_urb(urb, &data->deferred);
1298 schedule_work(&data->waker);
1299
1300 usb_free_urb(urb);
1301 return 0;
1302 }
1303
1304 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
1305 {
1306 struct urb *urb;
1307
1308 BT_DBG("%s", hdev->name);
1309
1310 switch (hci_skb_pkt_type(skb)) {
1311 case HCI_COMMAND_PKT:
1312 urb = alloc_ctrl_urb(hdev, skb);
1313 if (IS_ERR(urb))
1314 return PTR_ERR(urb);
1315
1316 hdev->stat.cmd_tx++;
1317 return submit_or_queue_tx_urb(hdev, urb);
1318
1319 case HCI_ACLDATA_PKT:
1320 urb = alloc_bulk_urb(hdev, skb);
1321 if (IS_ERR(urb))
1322 return PTR_ERR(urb);
1323
1324 hdev->stat.acl_tx++;
1325 return submit_or_queue_tx_urb(hdev, urb);
1326
1327 case HCI_SCODATA_PKT:
1328 if (hci_conn_num(hdev, SCO_LINK) < 1)
1329 return -ENODEV;
1330
1331 urb = alloc_isoc_urb(hdev, skb);
1332 if (IS_ERR(urb))
1333 return PTR_ERR(urb);
1334
1335 hdev->stat.sco_tx++;
1336 return submit_tx_urb(hdev, urb);
1337 }
1338
1339 return -EILSEQ;
1340 }
1341
1342 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
1343 {
1344 struct btusb_data *data = hci_get_drvdata(hdev);
1345
1346 BT_DBG("%s evt %d", hdev->name, evt);
1347
1348 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
1349 data->sco_num = hci_conn_num(hdev, SCO_LINK);
1350 schedule_work(&data->work);
1351 }
1352 }
1353
1354 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
1355 {
1356 struct btusb_data *data = hci_get_drvdata(hdev);
1357 struct usb_interface *intf = data->isoc;
1358 struct usb_endpoint_descriptor *ep_desc;
1359 int i, err;
1360
1361 if (!data->isoc)
1362 return -ENODEV;
1363
1364 err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting);
1365 if (err < 0) {
1366 bt_dev_err(hdev, "setting interface failed (%d)", -err);
1367 return err;
1368 }
1369
1370 data->isoc_altsetting = altsetting;
1371
1372 data->isoc_tx_ep = NULL;
1373 data->isoc_rx_ep = NULL;
1374
1375 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1376 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1377
1378 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
1379 data->isoc_tx_ep = ep_desc;
1380 continue;
1381 }
1382
1383 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
1384 data->isoc_rx_ep = ep_desc;
1385 continue;
1386 }
1387 }
1388
1389 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
1390 bt_dev_err(hdev, "invalid SCO descriptors");
1391 return -ENODEV;
1392 }
1393
1394 return 0;
1395 }
1396
1397 static void btusb_work(struct work_struct *work)
1398 {
1399 struct btusb_data *data = container_of(work, struct btusb_data, work);
1400 struct hci_dev *hdev = data->hdev;
1401 int new_alts;
1402 int err;
1403
1404 if (data->sco_num > 0) {
1405 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
1406 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
1407 if (err < 0) {
1408 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1409 usb_kill_anchored_urbs(&data->isoc_anchor);
1410 return;
1411 }
1412
1413 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
1414 }
1415
1416 if (hdev->voice_setting & 0x0020) {
1417 static const int alts[3] = { 2, 4, 5 };
1418
1419 new_alts = alts[data->sco_num - 1];
1420 } else {
1421 new_alts = data->sco_num;
1422 }
1423
1424 if (data->isoc_altsetting != new_alts) {
1425 unsigned long flags;
1426
1427 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1428 usb_kill_anchored_urbs(&data->isoc_anchor);
1429
1430 /* When isochronous alternate setting needs to be
1431 * changed, because SCO connection has been added
1432 * or removed, a packet fragment may be left in the
1433 * reassembling state. This could lead to wrongly
1434 * assembled fragments.
1435 *
1436 * Clear outstanding fragment when selecting a new
1437 * alternate setting.
1438 */
1439 spin_lock_irqsave(&data->rxlock, flags);
1440 kfree_skb(data->sco_skb);
1441 data->sco_skb = NULL;
1442 spin_unlock_irqrestore(&data->rxlock, flags);
1443
1444 if (__set_isoc_interface(hdev, new_alts) < 0)
1445 return;
1446 }
1447
1448 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1449 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
1450 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1451 else
1452 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
1453 }
1454 } else {
1455 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1456 usb_kill_anchored_urbs(&data->isoc_anchor);
1457
1458 __set_isoc_interface(hdev, 0);
1459 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
1460 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
1461 }
1462 }
1463
1464 static void btusb_waker(struct work_struct *work)
1465 {
1466 struct btusb_data *data = container_of(work, struct btusb_data, waker);
1467 int err;
1468
1469 err = usb_autopm_get_interface(data->intf);
1470 if (err < 0)
1471 return;
1472
1473 usb_autopm_put_interface(data->intf);
1474 }
1475
1476 static int btusb_setup_bcm92035(struct hci_dev *hdev)
1477 {
1478 struct sk_buff *skb;
1479 u8 val = 0x00;
1480
1481 BT_DBG("%s", hdev->name);
1482
1483 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
1484 if (IS_ERR(skb))
1485 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb));
1486 else
1487 kfree_skb(skb);
1488
1489 return 0;
1490 }
1491
1492 static int btusb_setup_csr(struct hci_dev *hdev)
1493 {
1494 struct hci_rp_read_local_version *rp;
1495 struct sk_buff *skb;
1496
1497 BT_DBG("%s", hdev->name);
1498
1499 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1500 HCI_INIT_TIMEOUT);
1501 if (IS_ERR(skb)) {
1502 int err = PTR_ERR(skb);
1503 bt_dev_err(hdev, "CSR: Local version failed (%d)", err);
1504 return err;
1505 }
1506
1507 if (skb->len != sizeof(struct hci_rp_read_local_version)) {
1508 bt_dev_err(hdev, "CSR: Local version length mismatch");
1509 kfree_skb(skb);
1510 return -EIO;
1511 }
1512
1513 rp = (struct hci_rp_read_local_version *)skb->data;
1514
1515 /* Detect controllers which aren't real CSR ones. */
1516 if (le16_to_cpu(rp->manufacturer) != 10 ||
1517 le16_to_cpu(rp->lmp_subver) == 0x0c5c) {
1518 /* Clear the reset quirk since this is not an actual
1519 * early Bluetooth 1.1 device from CSR.
1520 */
1521 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1522
1523 /* These fake CSR controllers have all a broken
1524 * stored link key handling and so just disable it.
1525 */
1526 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
1527 }
1528
1529 kfree_skb(skb);
1530
1531 return 0;
1532 }
1533
1534 static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev,
1535 struct intel_version *ver)
1536 {
1537 const struct firmware *fw;
1538 char fwname[64];
1539 int ret;
1540
1541 snprintf(fwname, sizeof(fwname),
1542 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq",
1543 ver->hw_platform, ver->hw_variant, ver->hw_revision,
1544 ver->fw_variant, ver->fw_revision, ver->fw_build_num,
1545 ver->fw_build_ww, ver->fw_build_yy);
1546
1547 ret = request_firmware(&fw, fwname, &hdev->dev);
1548 if (ret < 0) {
1549 if (ret == -EINVAL) {
1550 BT_ERR("%s Intel firmware file request failed (%d)",
1551 hdev->name, ret);
1552 return NULL;
1553 }
1554
1555 BT_ERR("%s failed to open Intel firmware file: %s(%d)",
1556 hdev->name, fwname, ret);
1557
1558 /* If the correct firmware patch file is not found, use the
1559 * default firmware patch file instead
1560 */
1561 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq",
1562 ver->hw_platform, ver->hw_variant);
1563 if (request_firmware(&fw, fwname, &hdev->dev) < 0) {
1564 BT_ERR("%s failed to open default Intel fw file: %s",
1565 hdev->name, fwname);
1566 return NULL;
1567 }
1568 }
1569
1570 bt_dev_info(hdev, "Intel Bluetooth firmware file: %s", fwname);
1571
1572 return fw;
1573 }
1574
1575 static int btusb_setup_intel_patching(struct hci_dev *hdev,
1576 const struct firmware *fw,
1577 const u8 **fw_ptr, int *disable_patch)
1578 {
1579 struct sk_buff *skb;
1580 struct hci_command_hdr *cmd;
1581 const u8 *cmd_param;
1582 struct hci_event_hdr *evt = NULL;
1583 const u8 *evt_param = NULL;
1584 int remain = fw->size - (*fw_ptr - fw->data);
1585
1586 /* The first byte indicates the types of the patch command or event.
1587 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes
1588 * in the current firmware buffer doesn't start with 0x01 or
1589 * the size of remain buffer is smaller than HCI command header,
1590 * the firmware file is corrupted and it should stop the patching
1591 * process.
1592 */
1593 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) {
1594 BT_ERR("%s Intel fw corrupted: invalid cmd read", hdev->name);
1595 return -EINVAL;
1596 }
1597 (*fw_ptr)++;
1598 remain--;
1599
1600 cmd = (struct hci_command_hdr *)(*fw_ptr);
1601 *fw_ptr += sizeof(*cmd);
1602 remain -= sizeof(*cmd);
1603
1604 /* Ensure that the remain firmware data is long enough than the length
1605 * of command parameter. If not, the firmware file is corrupted.
1606 */
1607 if (remain < cmd->plen) {
1608 BT_ERR("%s Intel fw corrupted: invalid cmd len", hdev->name);
1609 return -EFAULT;
1610 }
1611
1612 /* If there is a command that loads a patch in the firmware
1613 * file, then enable the patch upon success, otherwise just
1614 * disable the manufacturer mode, for example patch activation
1615 * is not required when the default firmware patch file is used
1616 * because there are no patch data to load.
1617 */
1618 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e)
1619 *disable_patch = 0;
1620
1621 cmd_param = *fw_ptr;
1622 *fw_ptr += cmd->plen;
1623 remain -= cmd->plen;
1624
1625 /* This reads the expected events when the above command is sent to the
1626 * device. Some vendor commands expects more than one events, for
1627 * example command status event followed by vendor specific event.
1628 * For this case, it only keeps the last expected event. so the command
1629 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of
1630 * last expected event.
1631 */
1632 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) {
1633 (*fw_ptr)++;
1634 remain--;
1635
1636 evt = (struct hci_event_hdr *)(*fw_ptr);
1637 *fw_ptr += sizeof(*evt);
1638 remain -= sizeof(*evt);
1639
1640 if (remain < evt->plen) {
1641 BT_ERR("%s Intel fw corrupted: invalid evt len",
1642 hdev->name);
1643 return -EFAULT;
1644 }
1645
1646 evt_param = *fw_ptr;
1647 *fw_ptr += evt->plen;
1648 remain -= evt->plen;
1649 }
1650
1651 /* Every HCI commands in the firmware file has its correspond event.
1652 * If event is not found or remain is smaller than zero, the firmware
1653 * file is corrupted.
1654 */
1655 if (!evt || !evt_param || remain < 0) {
1656 BT_ERR("%s Intel fw corrupted: invalid evt read", hdev->name);
1657 return -EFAULT;
1658 }
1659
1660 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen,
1661 cmd_param, evt->evt, HCI_INIT_TIMEOUT);
1662 if (IS_ERR(skb)) {
1663 BT_ERR("%s sending Intel patch command (0x%4.4x) failed (%ld)",
1664 hdev->name, cmd->opcode, PTR_ERR(skb));
1665 return PTR_ERR(skb);
1666 }
1667
1668 /* It ensures that the returned event matches the event data read from
1669 * the firmware file. At fist, it checks the length and then
1670 * the contents of the event.
1671 */
1672 if (skb->len != evt->plen) {
1673 BT_ERR("%s mismatch event length (opcode 0x%4.4x)", hdev->name,
1674 le16_to_cpu(cmd->opcode));
1675 kfree_skb(skb);
1676 return -EFAULT;
1677 }
1678
1679 if (memcmp(skb->data, evt_param, evt->plen)) {
1680 BT_ERR("%s mismatch event parameter (opcode 0x%4.4x)",
1681 hdev->name, le16_to_cpu(cmd->opcode));
1682 kfree_skb(skb);
1683 return -EFAULT;
1684 }
1685 kfree_skb(skb);
1686
1687 return 0;
1688 }
1689
1690 static int btusb_setup_intel(struct hci_dev *hdev)
1691 {
1692 struct sk_buff *skb;
1693 const struct firmware *fw;
1694 const u8 *fw_ptr;
1695 int disable_patch, err;
1696 struct intel_version ver;
1697
1698 BT_DBG("%s", hdev->name);
1699
1700 /* The controller has a bug with the first HCI command sent to it
1701 * returning number of completed commands as zero. This would stall the
1702 * command processing in the Bluetooth core.
1703 *
1704 * As a workaround, send HCI Reset command first which will reset the
1705 * number of completed commands and allow normal command processing
1706 * from now on.
1707 */
1708 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1709 if (IS_ERR(skb)) {
1710 BT_ERR("%s sending initial HCI reset command failed (%ld)",
1711 hdev->name, PTR_ERR(skb));
1712 return PTR_ERR(skb);
1713 }
1714 kfree_skb(skb);
1715
1716 /* Read Intel specific controller version first to allow selection of
1717 * which firmware file to load.
1718 *
1719 * The returned information are hardware variant and revision plus
1720 * firmware variant, revision and build number.
1721 */
1722 err = btintel_read_version(hdev, &ver);
1723 if (err)
1724 return err;
1725
1726 bt_dev_info(hdev, "read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
1727 ver.hw_platform, ver.hw_variant, ver.hw_revision,
1728 ver.fw_variant, ver.fw_revision, ver.fw_build_num,
1729 ver.fw_build_ww, ver.fw_build_yy, ver.fw_patch_num);
1730
1731 /* fw_patch_num indicates the version of patch the device currently
1732 * have. If there is no patch data in the device, it is always 0x00.
1733 * So, if it is other than 0x00, no need to patch the device again.
1734 */
1735 if (ver.fw_patch_num) {
1736 bt_dev_info(hdev, "Intel device is already patched. "
1737 "patch num: %02x", ver.fw_patch_num);
1738 goto complete;
1739 }
1740
1741 /* Opens the firmware patch file based on the firmware version read
1742 * from the controller. If it fails to open the matching firmware
1743 * patch file, it tries to open the default firmware patch file.
1744 * If no patch file is found, allow the device to operate without
1745 * a patch.
1746 */
1747 fw = btusb_setup_intel_get_fw(hdev, &ver);
1748 if (!fw)
1749 goto complete;
1750 fw_ptr = fw->data;
1751
1752 /* Enable the manufacturer mode of the controller.
1753 * Only while this mode is enabled, the driver can download the
1754 * firmware patch data and configuration parameters.
1755 */
1756 err = btintel_enter_mfg(hdev);
1757 if (err) {
1758 release_firmware(fw);
1759 return err;
1760 }
1761
1762 disable_patch = 1;
1763
1764 /* The firmware data file consists of list of Intel specific HCI
1765 * commands and its expected events. The first byte indicates the
1766 * type of the message, either HCI command or HCI event.
1767 *
1768 * It reads the command and its expected event from the firmware file,
1769 * and send to the controller. Once __hci_cmd_sync_ev() returns,
1770 * the returned event is compared with the event read from the firmware
1771 * file and it will continue until all the messages are downloaded to
1772 * the controller.
1773 *
1774 * Once the firmware patching is completed successfully,
1775 * the manufacturer mode is disabled with reset and activating the
1776 * downloaded patch.
1777 *
1778 * If the firmware patching fails, the manufacturer mode is
1779 * disabled with reset and deactivating the patch.
1780 *
1781 * If the default patch file is used, no reset is done when disabling
1782 * the manufacturer.
1783 */
1784 while (fw->size > fw_ptr - fw->data) {
1785 int ret;
1786
1787 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr,
1788 &disable_patch);
1789 if (ret < 0)
1790 goto exit_mfg_deactivate;
1791 }
1792
1793 release_firmware(fw);
1794
1795 if (disable_patch)
1796 goto exit_mfg_disable;
1797
1798 /* Patching completed successfully and disable the manufacturer mode
1799 * with reset and activate the downloaded firmware patches.
1800 */
1801 err = btintel_exit_mfg(hdev, true, true);
1802 if (err)
1803 return err;
1804
1805 bt_dev_info(hdev, "Intel firmware patch completed and activated");
1806
1807 goto complete;
1808
1809 exit_mfg_disable:
1810 /* Disable the manufacturer mode without reset */
1811 err = btintel_exit_mfg(hdev, false, false);
1812 if (err)
1813 return err;
1814
1815 bt_dev_info(hdev, "Intel firmware patch completed");
1816
1817 goto complete;
1818
1819 exit_mfg_deactivate:
1820 release_firmware(fw);
1821
1822 /* Patching failed. Disable the manufacturer mode with reset and
1823 * deactivate the downloaded firmware patches.
1824 */
1825 err = btintel_exit_mfg(hdev, true, false);
1826 if (err)
1827 return err;
1828
1829 bt_dev_info(hdev, "Intel firmware patch completed and deactivated");
1830
1831 complete:
1832 /* Set the event mask for Intel specific vendor events. This enables
1833 * a few extra events that are useful during general operation.
1834 */
1835 btintel_set_event_mask_mfg(hdev, false);
1836
1837 btintel_check_bdaddr(hdev);
1838 return 0;
1839 }
1840
1841 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
1842 {
1843 struct sk_buff *skb;
1844 struct hci_event_hdr *hdr;
1845 struct hci_ev_cmd_complete *evt;
1846
1847 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_ATOMIC);
1848 if (!skb)
1849 return -ENOMEM;
1850
1851 hdr = skb_put(skb, sizeof(*hdr));
1852 hdr->evt = HCI_EV_CMD_COMPLETE;
1853 hdr->plen = sizeof(*evt) + 1;
1854
1855 evt = skb_put(skb, sizeof(*evt));
1856 evt->ncmd = 0x01;
1857 evt->opcode = cpu_to_le16(opcode);
1858
1859 skb_put_u8(skb, 0x00);
1860
1861 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
1862
1863 return hci_recv_frame(hdev, skb);
1864 }
1865
1866 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
1867 int count)
1868 {
1869 /* When the device is in bootloader mode, then it can send
1870 * events via the bulk endpoint. These events are treated the
1871 * same way as the ones received from the interrupt endpoint.
1872 */
1873 if (test_bit(BTUSB_BOOTLOADER, &data->flags))
1874 return btusb_recv_intr(data, buffer, count);
1875
1876 return btusb_recv_bulk(data, buffer, count);
1877 }
1878
1879 static void btusb_intel_bootup(struct btusb_data *data, const void *ptr,
1880 unsigned int len)
1881 {
1882 const struct intel_bootup *evt = ptr;
1883
1884 if (len != sizeof(*evt))
1885 return;
1886
1887 if (test_and_clear_bit(BTUSB_BOOTING, &data->flags)) {
1888 smp_mb__after_atomic();
1889 wake_up_bit(&data->flags, BTUSB_BOOTING);
1890 }
1891 }
1892
1893 static void btusb_intel_secure_send_result(struct btusb_data *data,
1894 const void *ptr, unsigned int len)
1895 {
1896 const struct intel_secure_send_result *evt = ptr;
1897
1898 if (len != sizeof(*evt))
1899 return;
1900
1901 if (evt->result)
1902 set_bit(BTUSB_FIRMWARE_FAILED, &data->flags);
1903
1904 if (test_and_clear_bit(BTUSB_DOWNLOADING, &data->flags) &&
1905 test_bit(BTUSB_FIRMWARE_LOADED, &data->flags)) {
1906 smp_mb__after_atomic();
1907 wake_up_bit(&data->flags, BTUSB_DOWNLOADING);
1908 }
1909 }
1910
1911 static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb)
1912 {
1913 struct btusb_data *data = hci_get_drvdata(hdev);
1914
1915 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
1916 struct hci_event_hdr *hdr = (void *)skb->data;
1917
1918 if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff &&
1919 hdr->plen > 0) {
1920 const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1;
1921 unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1;
1922
1923 switch (skb->data[2]) {
1924 case 0x02:
1925 /* When switching to the operational firmware
1926 * the device sends a vendor specific event
1927 * indicating that the bootup completed.
1928 */
1929 btusb_intel_bootup(data, ptr, len);
1930 break;
1931 case 0x06:
1932 /* When the firmware loading completes the
1933 * device sends out a vendor specific event
1934 * indicating the result of the firmware
1935 * loading.
1936 */
1937 btusb_intel_secure_send_result(data, ptr, len);
1938 break;
1939 }
1940 }
1941 }
1942
1943 return hci_recv_frame(hdev, skb);
1944 }
1945
1946 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
1947 {
1948 struct btusb_data *data = hci_get_drvdata(hdev);
1949 struct urb *urb;
1950
1951 BT_DBG("%s", hdev->name);
1952
1953 switch (hci_skb_pkt_type(skb)) {
1954 case HCI_COMMAND_PKT:
1955 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
1956 struct hci_command_hdr *cmd = (void *)skb->data;
1957 __u16 opcode = le16_to_cpu(cmd->opcode);
1958
1959 /* When in bootloader mode and the command 0xfc09
1960 * is received, it needs to be send down the
1961 * bulk endpoint. So allocate a bulk URB instead.
1962 */
1963 if (opcode == 0xfc09)
1964 urb = alloc_bulk_urb(hdev, skb);
1965 else
1966 urb = alloc_ctrl_urb(hdev, skb);
1967
1968 /* When the 0xfc01 command is issued to boot into
1969 * the operational firmware, it will actually not
1970 * send a command complete event. To keep the flow
1971 * control working inject that event here.
1972 */
1973 if (opcode == 0xfc01)
1974 inject_cmd_complete(hdev, opcode);
1975 } else {
1976 urb = alloc_ctrl_urb(hdev, skb);
1977 }
1978 if (IS_ERR(urb))
1979 return PTR_ERR(urb);
1980
1981 hdev->stat.cmd_tx++;
1982 return submit_or_queue_tx_urb(hdev, urb);
1983
1984 case HCI_ACLDATA_PKT:
1985 urb = alloc_bulk_urb(hdev, skb);
1986 if (IS_ERR(urb))
1987 return PTR_ERR(urb);
1988
1989 hdev->stat.acl_tx++;
1990 return submit_or_queue_tx_urb(hdev, urb);
1991
1992 case HCI_SCODATA_PKT:
1993 if (hci_conn_num(hdev, SCO_LINK) < 1)
1994 return -ENODEV;
1995
1996 urb = alloc_isoc_urb(hdev, skb);
1997 if (IS_ERR(urb))
1998 return PTR_ERR(urb);
1999
2000 hdev->stat.sco_tx++;
2001 return submit_tx_urb(hdev, urb);
2002 }
2003
2004 return -EILSEQ;
2005 }
2006
2007 static int btusb_setup_intel_new(struct hci_dev *hdev)
2008 {
2009 static const u8 reset_param[] = { 0x00, 0x01, 0x00, 0x01,
2010 0x00, 0x08, 0x04, 0x00 };
2011 struct btusb_data *data = hci_get_drvdata(hdev);
2012 struct sk_buff *skb;
2013 struct intel_version ver;
2014 struct intel_boot_params *params;
2015 const struct firmware *fw;
2016 const u8 *fw_ptr;
2017 u32 frag_len;
2018 char fwname[64];
2019 ktime_t calltime, delta, rettime;
2020 unsigned long long duration;
2021 int err;
2022
2023 BT_DBG("%s", hdev->name);
2024
2025 calltime = ktime_get();
2026
2027 /* Read the Intel version information to determine if the device
2028 * is in bootloader mode or if it already has operational firmware
2029 * loaded.
2030 */
2031 err = btintel_read_version(hdev, &ver);
2032 if (err)
2033 return err;
2034
2035 /* The hardware platform number has a fixed value of 0x37 and
2036 * for now only accept this single value.
2037 */
2038 if (ver.hw_platform != 0x37) {
2039 BT_ERR("%s: Unsupported Intel hardware platform (%u)",
2040 hdev->name, ver.hw_platform);
2041 return -EINVAL;
2042 }
2043
2044 /* Check for supported iBT hardware variants of this firmware
2045 * loading method.
2046 *
2047 * This check has been put in place to ensure correct forward
2048 * compatibility options when newer hardware variants come along.
2049 */
2050 switch (ver.hw_variant) {
2051 case 0x0b: /* SfP */
2052 case 0x0c: /* WsP */
2053 case 0x11: /* JfP */
2054 case 0x12: /* ThP */
2055 break;
2056 default:
2057 BT_ERR("%s: Unsupported Intel hardware variant (%u)",
2058 hdev->name, ver.hw_variant);
2059 return -EINVAL;
2060 }
2061
2062 btintel_version_info(hdev, &ver);
2063
2064 /* The firmware variant determines if the device is in bootloader
2065 * mode or is running operational firmware. The value 0x06 identifies
2066 * the bootloader and the value 0x23 identifies the operational
2067 * firmware.
2068 *
2069 * When the operational firmware is already present, then only
2070 * the check for valid Bluetooth device address is needed. This
2071 * determines if the device will be added as configured or
2072 * unconfigured controller.
2073 *
2074 * It is not possible to use the Secure Boot Parameters in this
2075 * case since that command is only available in bootloader mode.
2076 */
2077 if (ver.fw_variant == 0x23) {
2078 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2079 btintel_check_bdaddr(hdev);
2080 return 0;
2081 }
2082
2083 /* If the device is not in bootloader mode, then the only possible
2084 * choice is to return an error and abort the device initialization.
2085 */
2086 if (ver.fw_variant != 0x06) {
2087 BT_ERR("%s: Unsupported Intel firmware variant (%u)",
2088 hdev->name, ver.fw_variant);
2089 return -ENODEV;
2090 }
2091
2092 /* Read the secure boot parameters to identify the operating
2093 * details of the bootloader.
2094 */
2095 skb = __hci_cmd_sync(hdev, 0xfc0d, 0, NULL, HCI_INIT_TIMEOUT);
2096 if (IS_ERR(skb)) {
2097 BT_ERR("%s: Reading Intel boot parameters failed (%ld)",
2098 hdev->name, PTR_ERR(skb));
2099 return PTR_ERR(skb);
2100 }
2101
2102 if (skb->len != sizeof(*params)) {
2103 BT_ERR("%s: Intel boot parameters size mismatch", hdev->name);
2104 kfree_skb(skb);
2105 return -EILSEQ;
2106 }
2107
2108 params = (struct intel_boot_params *)skb->data;
2109
2110 bt_dev_info(hdev, "Device revision is %u",
2111 le16_to_cpu(params->dev_revid));
2112
2113 bt_dev_info(hdev, "Secure boot is %s",
2114 params->secure_boot ? "enabled" : "disabled");
2115
2116 bt_dev_info(hdev, "OTP lock is %s",
2117 params->otp_lock ? "enabled" : "disabled");
2118
2119 bt_dev_info(hdev, "API lock is %s",
2120 params->api_lock ? "enabled" : "disabled");
2121
2122 bt_dev_info(hdev, "Debug lock is %s",
2123 params->debug_lock ? "enabled" : "disabled");
2124
2125 bt_dev_info(hdev, "Minimum firmware build %u week %u %u",
2126 params->min_fw_build_nn, params->min_fw_build_cw,
2127 2000 + params->min_fw_build_yy);
2128
2129 /* It is required that every single firmware fragment is acknowledged
2130 * with a command complete event. If the boot parameters indicate
2131 * that this bootloader does not send them, then abort the setup.
2132 */
2133 if (params->limited_cce != 0x00) {
2134 BT_ERR("%s: Unsupported Intel firmware loading method (%u)",
2135 hdev->name, params->limited_cce);
2136 kfree_skb(skb);
2137 return -EINVAL;
2138 }
2139
2140 /* If the OTP has no valid Bluetooth device address, then there will
2141 * also be no valid address for the operational firmware.
2142 */
2143 if (!bacmp(&params->otp_bdaddr, BDADDR_ANY)) {
2144 bt_dev_info(hdev, "No device address configured");
2145 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
2146 }
2147
2148 /* With this Intel bootloader only the hardware variant and device
2149 * revision information are used to select the right firmware for SfP
2150 * and WsP.
2151 *
2152 * The firmware filename is ibt-<hw_variant>-<dev_revid>.sfi.
2153 *
2154 * Currently the supported hardware variants are:
2155 * 11 (0x0b) for iBT3.0 (LnP/SfP)
2156 * 12 (0x0c) for iBT3.5 (WsP)
2157 *
2158 * For ThP/JfP and for future SKU's, the FW name varies based on HW
2159 * variant, HW revision and FW revision, as these are dependent on CNVi
2160 * and RF Combination.
2161 *
2162 * 17 (0x11) for iBT3.5 (JfP)
2163 * 18 (0x12) for iBT3.5 (ThP)
2164 *
2165 * The firmware file name for these will be
2166 * ibt-<hw_variant>-<hw_revision>-<fw_revision>.sfi.
2167 *
2168 */
2169 switch (ver.hw_variant) {
2170 case 0x0b: /* SfP */
2171 case 0x0c: /* WsP */
2172 snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u.sfi",
2173 le16_to_cpu(ver.hw_variant),
2174 le16_to_cpu(params->dev_revid));
2175 break;
2176 case 0x11: /* JfP */
2177 case 0x12: /* ThP */
2178 snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u-%u.sfi",
2179 le16_to_cpu(ver.hw_variant),
2180 le16_to_cpu(ver.hw_revision),
2181 le16_to_cpu(ver.fw_revision));
2182 break;
2183 default:
2184 BT_ERR("%s: Unsupported Intel firmware naming", hdev->name);
2185 return -EINVAL;
2186 }
2187
2188 err = request_firmware(&fw, fwname, &hdev->dev);
2189 if (err < 0) {
2190 BT_ERR("%s: Failed to load Intel firmware file (%d)",
2191 hdev->name, err);
2192 kfree_skb(skb);
2193 return err;
2194 }
2195
2196 bt_dev_info(hdev, "Found device firmware: %s", fwname);
2197
2198 /* Save the DDC file name for later use to apply once the firmware
2199 * downloading is done.
2200 */
2201 switch (ver.hw_variant) {
2202 case 0x0b: /* SfP */
2203 case 0x0c: /* WsP */
2204 snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u.ddc",
2205 le16_to_cpu(ver.hw_variant),
2206 le16_to_cpu(params->dev_revid));
2207 break;
2208 case 0x11: /* JfP */
2209 case 0x12: /* ThP */
2210 snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u-%u.ddc",
2211 le16_to_cpu(ver.hw_variant),
2212 le16_to_cpu(ver.hw_revision),
2213 le16_to_cpu(ver.fw_revision));
2214 break;
2215 default:
2216 BT_ERR("%s: Unsupported Intel firmware naming", hdev->name);
2217 return -EINVAL;
2218 }
2219
2220 kfree_skb(skb);
2221
2222 if (fw->size < 644) {
2223 BT_ERR("%s: Invalid size of firmware file (%zu)",
2224 hdev->name, fw->size);
2225 err = -EBADF;
2226 goto done;
2227 }
2228
2229 set_bit(BTUSB_DOWNLOADING, &data->flags);
2230
2231 /* Start the firmware download transaction with the Init fragment
2232 * represented by the 128 bytes of CSS header.
2233 */
2234 err = btintel_secure_send(hdev, 0x00, 128, fw->data);
2235 if (err < 0) {
2236 BT_ERR("%s: Failed to send firmware header (%d)",
2237 hdev->name, err);
2238 goto done;
2239 }
2240
2241 /* Send the 256 bytes of public key information from the firmware
2242 * as the PKey fragment.
2243 */
2244 err = btintel_secure_send(hdev, 0x03, 256, fw->data + 128);
2245 if (err < 0) {
2246 BT_ERR("%s: Failed to send firmware public key (%d)",
2247 hdev->name, err);
2248 goto done;
2249 }
2250
2251 /* Send the 256 bytes of signature information from the firmware
2252 * as the Sign fragment.
2253 */
2254 err = btintel_secure_send(hdev, 0x02, 256, fw->data + 388);
2255 if (err < 0) {
2256 BT_ERR("%s: Failed to send firmware signature (%d)",
2257 hdev->name, err);
2258 goto done;
2259 }
2260
2261 fw_ptr = fw->data + 644;
2262 frag_len = 0;
2263
2264 while (fw_ptr - fw->data < fw->size) {
2265 struct hci_command_hdr *cmd = (void *)(fw_ptr + frag_len);
2266
2267 frag_len += sizeof(*cmd) + cmd->plen;
2268
2269 /* The parameter length of the secure send command requires
2270 * a 4 byte alignment. It happens so that the firmware file
2271 * contains proper Intel_NOP commands to align the fragments
2272 * as needed.
2273 *
2274 * Send set of commands with 4 byte alignment from the
2275 * firmware data buffer as a single Data fragement.
2276 */
2277 if (!(frag_len % 4)) {
2278 err = btintel_secure_send(hdev, 0x01, frag_len, fw_ptr);
2279 if (err < 0) {
2280 BT_ERR("%s: Failed to send firmware data (%d)",
2281 hdev->name, err);
2282 goto done;
2283 }
2284
2285 fw_ptr += frag_len;
2286 frag_len = 0;
2287 }
2288 }
2289
2290 set_bit(BTUSB_FIRMWARE_LOADED, &data->flags);
2291
2292 bt_dev_info(hdev, "Waiting for firmware download to complete");
2293
2294 /* Before switching the device into operational mode and with that
2295 * booting the loaded firmware, wait for the bootloader notification
2296 * that all fragments have been successfully received.
2297 *
2298 * When the event processing receives the notification, then the
2299 * BTUSB_DOWNLOADING flag will be cleared.
2300 *
2301 * The firmware loading should not take longer than 5 seconds
2302 * and thus just timeout if that happens and fail the setup
2303 * of this device.
2304 */
2305 err = wait_on_bit_timeout(&data->flags, BTUSB_DOWNLOADING,
2306 TASK_INTERRUPTIBLE,
2307 msecs_to_jiffies(5000));
2308 if (err == -EINTR) {
2309 BT_ERR("%s: Firmware loading interrupted", hdev->name);
2310 goto done;
2311 }
2312
2313 if (err) {
2314 BT_ERR("%s: Firmware loading timeout", hdev->name);
2315 err = -ETIMEDOUT;
2316 goto done;
2317 }
2318
2319 if (test_bit(BTUSB_FIRMWARE_FAILED, &data->flags)) {
2320 BT_ERR("%s: Firmware loading failed", hdev->name);
2321 err = -ENOEXEC;
2322 goto done;
2323 }
2324
2325 rettime = ktime_get();
2326 delta = ktime_sub(rettime, calltime);
2327 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2328
2329 bt_dev_info(hdev, "Firmware loaded in %llu usecs", duration);
2330
2331 done:
2332 release_firmware(fw);
2333
2334 if (err < 0)
2335 return err;
2336
2337 calltime = ktime_get();
2338
2339 set_bit(BTUSB_BOOTING, &data->flags);
2340
2341 skb = __hci_cmd_sync(hdev, 0xfc01, sizeof(reset_param), reset_param,
2342 HCI_INIT_TIMEOUT);
2343 if (IS_ERR(skb))
2344 return PTR_ERR(skb);
2345
2346 kfree_skb(skb);
2347
2348 /* The bootloader will not indicate when the device is ready. This
2349 * is done by the operational firmware sending bootup notification.
2350 *
2351 * Booting into operational firmware should not take longer than
2352 * 1 second. However if that happens, then just fail the setup
2353 * since something went wrong.
2354 */
2355 bt_dev_info(hdev, "Waiting for device to boot");
2356
2357 err = wait_on_bit_timeout(&data->flags, BTUSB_BOOTING,
2358 TASK_INTERRUPTIBLE,
2359 msecs_to_jiffies(1000));
2360
2361 if (err == -EINTR) {
2362 BT_ERR("%s: Device boot interrupted", hdev->name);
2363 return -EINTR;
2364 }
2365
2366 if (err) {
2367 BT_ERR("%s: Device boot timeout", hdev->name);
2368 return -ETIMEDOUT;
2369 }
2370
2371 rettime = ktime_get();
2372 delta = ktime_sub(rettime, calltime);
2373 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2374
2375 bt_dev_info(hdev, "Device booted in %llu usecs", duration);
2376
2377 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2378
2379 /* Once the device is running in operational mode, it needs to apply
2380 * the device configuration (DDC) parameters.
2381 *
2382 * The device can work without DDC parameters, so even if it fails
2383 * to load the file, no need to fail the setup.
2384 */
2385 btintel_load_ddc_config(hdev, fwname);
2386
2387 /* Set the event mask for Intel specific vendor events. This enables
2388 * a few extra events that are useful during general operation. It
2389 * does not enable any debugging related events.
2390 *
2391 * The device will function correctly without these events enabled
2392 * and thus no need to fail the setup.
2393 */
2394 btintel_set_event_mask(hdev, false);
2395
2396 return 0;
2397 }
2398
2399 static int btusb_shutdown_intel(struct hci_dev *hdev)
2400 {
2401 struct sk_buff *skb;
2402 long ret;
2403
2404 /* Some platforms have an issue with BT LED when the interface is
2405 * down or BT radio is turned off, which takes 5 seconds to BT LED
2406 * goes off. This command turns off the BT LED immediately.
2407 */
2408 skb = __hci_cmd_sync(hdev, 0xfc3f, 0, NULL, HCI_INIT_TIMEOUT);
2409 if (IS_ERR(skb)) {
2410 ret = PTR_ERR(skb);
2411 BT_ERR("%s: turning off Intel device LED failed (%ld)",
2412 hdev->name, ret);
2413 return ret;
2414 }
2415 kfree_skb(skb);
2416
2417 return 0;
2418 }
2419
2420 #ifdef CONFIG_PM
2421 /* Configure an out-of-band gpio as wake-up pin, if specified in device tree */
2422 static int marvell_config_oob_wake(struct hci_dev *hdev)
2423 {
2424 struct sk_buff *skb;
2425 struct btusb_data *data = hci_get_drvdata(hdev);
2426 struct device *dev = &data->udev->dev;
2427 u16 pin, gap, opcode;
2428 int ret;
2429 u8 cmd[5];
2430
2431 /* Move on if no wakeup pin specified */
2432 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) ||
2433 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap))
2434 return 0;
2435
2436 /* Vendor specific command to configure a GPIO as wake-up pin */
2437 opcode = hci_opcode_pack(0x3F, 0x59);
2438 cmd[0] = opcode & 0xFF;
2439 cmd[1] = opcode >> 8;
2440 cmd[2] = 2; /* length of parameters that follow */
2441 cmd[3] = pin;
2442 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */
2443
2444 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
2445 if (!skb) {
2446 bt_dev_err(hdev, "%s: No memory\n", __func__);
2447 return -ENOMEM;
2448 }
2449
2450 skb_put_data(skb, cmd, sizeof(cmd));
2451 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT;
2452
2453 ret = btusb_send_frame(hdev, skb);
2454 if (ret) {
2455 bt_dev_err(hdev, "%s: configuration failed\n", __func__);
2456 kfree_skb(skb);
2457 return ret;
2458 }
2459
2460 return 0;
2461 }
2462 #endif
2463
2464 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
2465 const bdaddr_t *bdaddr)
2466 {
2467 struct sk_buff *skb;
2468 u8 buf[8];
2469 long ret;
2470
2471 buf[0] = 0xfe;
2472 buf[1] = sizeof(bdaddr_t);
2473 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
2474
2475 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2476 if (IS_ERR(skb)) {
2477 ret = PTR_ERR(skb);
2478 bt_dev_err(hdev, "changing Marvell device address failed (%ld)",
2479 ret);
2480 return ret;
2481 }
2482 kfree_skb(skb);
2483
2484 return 0;
2485 }
2486
2487 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
2488 const bdaddr_t *bdaddr)
2489 {
2490 struct sk_buff *skb;
2491 u8 buf[10];
2492 long ret;
2493
2494 buf[0] = 0x01;
2495 buf[1] = 0x01;
2496 buf[2] = 0x00;
2497 buf[3] = sizeof(bdaddr_t);
2498 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
2499
2500 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2501 if (IS_ERR(skb)) {
2502 ret = PTR_ERR(skb);
2503 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
2504 return ret;
2505 }
2506 kfree_skb(skb);
2507
2508 return 0;
2509 }
2510
2511 #define QCA_DFU_PACKET_LEN 4096
2512
2513 #define QCA_GET_TARGET_VERSION 0x09
2514 #define QCA_CHECK_STATUS 0x05
2515 #define QCA_DFU_DOWNLOAD 0x01
2516
2517 #define QCA_SYSCFG_UPDATED 0x40
2518 #define QCA_PATCH_UPDATED 0x80
2519 #define QCA_DFU_TIMEOUT 3000
2520
2521 struct qca_version {
2522 __le32 rom_version;
2523 __le32 patch_version;
2524 __le32 ram_version;
2525 __le32 ref_clock;
2526 __u8 reserved[4];
2527 } __packed;
2528
2529 struct qca_rampatch_version {
2530 __le16 rom_version;
2531 __le16 patch_version;
2532 } __packed;
2533
2534 struct qca_device_info {
2535 u32 rom_version;
2536 u8 rampatch_hdr; /* length of header in rampatch */
2537 u8 nvm_hdr; /* length of header in NVM */
2538 u8 ver_offset; /* offset of version structure in rampatch */
2539 };
2540
2541 static const struct qca_device_info qca_devices_table[] = {
2542 { 0x00000100, 20, 4, 10 }, /* Rome 1.0 */
2543 { 0x00000101, 20, 4, 10 }, /* Rome 1.1 */
2544 { 0x00000200, 28, 4, 18 }, /* Rome 2.0 */
2545 { 0x00000201, 28, 4, 18 }, /* Rome 2.1 */
2546 { 0x00000300, 28, 4, 18 }, /* Rome 3.0 */
2547 { 0x00000302, 28, 4, 18 }, /* Rome 3.2 */
2548 };
2549
2550 static int btusb_qca_send_vendor_req(struct hci_dev *hdev, u8 request,
2551 void *data, u16 size)
2552 {
2553 struct btusb_data *btdata = hci_get_drvdata(hdev);
2554 struct usb_device *udev = btdata->udev;
2555 int pipe, err;
2556 u8 *buf;
2557
2558 buf = kmalloc(size, GFP_KERNEL);
2559 if (!buf)
2560 return -ENOMEM;
2561
2562 /* Found some of USB hosts have IOT issues with ours so that we should
2563 * not wait until HCI layer is ready.
2564 */
2565 pipe = usb_rcvctrlpipe(udev, 0);
2566 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
2567 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
2568 if (err < 0) {
2569 bt_dev_err(hdev, "Failed to access otp area (%d)", err);
2570 goto done;
2571 }
2572
2573 memcpy(data, buf, size);
2574
2575 done:
2576 kfree(buf);
2577
2578 return err;
2579 }
2580
2581 static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
2582 const struct firmware *firmware,
2583 size_t hdr_size)
2584 {
2585 struct btusb_data *btdata = hci_get_drvdata(hdev);
2586 struct usb_device *udev = btdata->udev;
2587 size_t count, size, sent = 0;
2588 int pipe, len, err;
2589 u8 *buf;
2590
2591 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
2592 if (!buf)
2593 return -ENOMEM;
2594
2595 count = firmware->size;
2596
2597 size = min_t(size_t, count, hdr_size);
2598 memcpy(buf, firmware->data, size);
2599
2600 /* USB patches should go down to controller through USB path
2601 * because binary format fits to go down through USB channel.
2602 * USB control path is for patching headers and USB bulk is for
2603 * patch body.
2604 */
2605 pipe = usb_sndctrlpipe(udev, 0);
2606 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
2607 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
2608 if (err < 0) {
2609 bt_dev_err(hdev, "Failed to send headers (%d)", err);
2610 goto done;
2611 }
2612
2613 sent += size;
2614 count -= size;
2615
2616 while (count) {
2617 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
2618
2619 memcpy(buf, firmware->data + sent, size);
2620
2621 pipe = usb_sndbulkpipe(udev, 0x02);
2622 err = usb_bulk_msg(udev, pipe, buf, size, &len,
2623 QCA_DFU_TIMEOUT);
2624 if (err < 0) {
2625 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)",
2626 sent, firmware->size, err);
2627 break;
2628 }
2629
2630 if (size != len) {
2631 bt_dev_err(hdev, "Failed to get bulk buffer");
2632 err = -EILSEQ;
2633 break;
2634 }
2635
2636 sent += size;
2637 count -= size;
2638 }
2639
2640 done:
2641 kfree(buf);
2642 return err;
2643 }
2644
2645 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
2646 struct qca_version *ver,
2647 const struct qca_device_info *info)
2648 {
2649 struct qca_rampatch_version *rver;
2650 const struct firmware *fw;
2651 u32 ver_rom, ver_patch;
2652 u16 rver_rom, rver_patch;
2653 char fwname[64];
2654 int err;
2655
2656 ver_rom = le32_to_cpu(ver->rom_version);
2657 ver_patch = le32_to_cpu(ver->patch_version);
2658
2659 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom);
2660
2661 err = request_firmware(&fw, fwname, &hdev->dev);
2662 if (err) {
2663 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)",
2664 fwname, err);
2665 return err;
2666 }
2667
2668 bt_dev_info(hdev, "using rampatch file: %s", fwname);
2669
2670 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
2671 rver_rom = le16_to_cpu(rver->rom_version);
2672 rver_patch = le16_to_cpu(rver->patch_version);
2673
2674 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, "
2675 "firmware rome 0x%x build 0x%x",
2676 rver_rom, rver_patch, ver_rom, ver_patch);
2677
2678 if (rver_rom != ver_rom || rver_patch <= ver_patch) {
2679 bt_dev_err(hdev, "rampatch file version did not match with firmware");
2680 err = -EINVAL;
2681 goto done;
2682 }
2683
2684 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
2685
2686 done:
2687 release_firmware(fw);
2688
2689 return err;
2690 }
2691
2692 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
2693 struct qca_version *ver,
2694 const struct qca_device_info *info)
2695 {
2696 const struct firmware *fw;
2697 char fwname[64];
2698 int err;
2699
2700 snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin",
2701 le32_to_cpu(ver->rom_version));
2702
2703 err = request_firmware(&fw, fwname, &hdev->dev);
2704 if (err) {
2705 bt_dev_err(hdev, "failed to request NVM file: %s (%d)",
2706 fwname, err);
2707 return err;
2708 }
2709
2710 bt_dev_info(hdev, "using NVM file: %s", fwname);
2711
2712 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
2713
2714 release_firmware(fw);
2715
2716 return err;
2717 }
2718
2719 static int btusb_setup_qca(struct hci_dev *hdev)
2720 {
2721 const struct qca_device_info *info = NULL;
2722 struct qca_version ver;
2723 u32 ver_rom;
2724 u8 status;
2725 int i, err;
2726
2727 err = btusb_qca_send_vendor_req(hdev, QCA_GET_TARGET_VERSION, &ver,
2728 sizeof(ver));
2729 if (err < 0)
2730 return err;
2731
2732 ver_rom = le32_to_cpu(ver.rom_version);
2733 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
2734 if (ver_rom == qca_devices_table[i].rom_version)
2735 info = &qca_devices_table[i];
2736 }
2737 if (!info) {
2738 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom);
2739 return -ENODEV;
2740 }
2741
2742 err = btusb_qca_send_vendor_req(hdev, QCA_CHECK_STATUS, &status,
2743 sizeof(status));
2744 if (err < 0)
2745 return err;
2746
2747 if (!(status & QCA_PATCH_UPDATED)) {
2748 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
2749 if (err < 0)
2750 return err;
2751 }
2752
2753 if (!(status & QCA_SYSCFG_UPDATED)) {
2754 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
2755 if (err < 0)
2756 return err;
2757 }
2758
2759 return 0;
2760 }
2761
2762 #ifdef CONFIG_BT_HCIBTUSB_BCM
2763 static inline int __set_diag_interface(struct hci_dev *hdev)
2764 {
2765 struct btusb_data *data = hci_get_drvdata(hdev);
2766 struct usb_interface *intf = data->diag;
2767 int i;
2768
2769 if (!data->diag)
2770 return -ENODEV;
2771
2772 data->diag_tx_ep = NULL;
2773 data->diag_rx_ep = NULL;
2774
2775 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2776 struct usb_endpoint_descriptor *ep_desc;
2777
2778 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2779
2780 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
2781 data->diag_tx_ep = ep_desc;
2782 continue;
2783 }
2784
2785 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
2786 data->diag_rx_ep = ep_desc;
2787 continue;
2788 }
2789 }
2790
2791 if (!data->diag_tx_ep || !data->diag_rx_ep) {
2792 bt_dev_err(hdev, "invalid diagnostic descriptors");
2793 return -ENODEV;
2794 }
2795
2796 return 0;
2797 }
2798
2799 static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable)
2800 {
2801 struct btusb_data *data = hci_get_drvdata(hdev);
2802 struct sk_buff *skb;
2803 struct urb *urb;
2804 unsigned int pipe;
2805
2806 if (!data->diag_tx_ep)
2807 return ERR_PTR(-ENODEV);
2808
2809 urb = usb_alloc_urb(0, GFP_KERNEL);
2810 if (!urb)
2811 return ERR_PTR(-ENOMEM);
2812
2813 skb = bt_skb_alloc(2, GFP_KERNEL);
2814 if (!skb) {
2815 usb_free_urb(urb);
2816 return ERR_PTR(-ENOMEM);
2817 }
2818
2819 skb_put_u8(skb, 0xf0);
2820 skb_put_u8(skb, enable);
2821
2822 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress);
2823
2824 usb_fill_bulk_urb(urb, data->udev, pipe,
2825 skb->data, skb->len, btusb_tx_complete, skb);
2826
2827 skb->dev = (void *)hdev;
2828
2829 return urb;
2830 }
2831
2832 static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable)
2833 {
2834 struct btusb_data *data = hci_get_drvdata(hdev);
2835 struct urb *urb;
2836
2837 if (!data->diag)
2838 return -ENODEV;
2839
2840 if (!test_bit(HCI_RUNNING, &hdev->flags))
2841 return -ENETDOWN;
2842
2843 urb = alloc_diag_urb(hdev, enable);
2844 if (IS_ERR(urb))
2845 return PTR_ERR(urb);
2846
2847 return submit_or_queue_tx_urb(hdev, urb);
2848 }
2849 #endif
2850
2851 #ifdef CONFIG_PM
2852 static irqreturn_t btusb_oob_wake_handler(int irq, void *priv)
2853 {
2854 struct btusb_data *data = priv;
2855
2856 pm_wakeup_event(&data->udev->dev, 0);
2857 pm_system_wakeup();
2858
2859 /* Disable only if not already disabled (keep it balanced) */
2860 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
2861 disable_irq_nosync(irq);
2862 disable_irq_wake(irq);
2863 }
2864 return IRQ_HANDLED;
2865 }
2866
2867 static const struct of_device_id btusb_match_table[] = {
2868 { .compatible = "usb1286,204e" },
2869 { }
2870 };
2871 MODULE_DEVICE_TABLE(of, btusb_match_table);
2872
2873 /* Use an oob wakeup pin? */
2874 static int btusb_config_oob_wake(struct hci_dev *hdev)
2875 {
2876 struct btusb_data *data = hci_get_drvdata(hdev);
2877 struct device *dev = &data->udev->dev;
2878 int irq, ret;
2879
2880 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
2881
2882 if (!of_match_device(btusb_match_table, dev))
2883 return 0;
2884
2885 /* Move on if no IRQ specified */
2886 irq = of_irq_get_byname(dev->of_node, "wakeup");
2887 if (irq <= 0) {
2888 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__);
2889 return 0;
2890 }
2891
2892 ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler,
2893 0, "OOB Wake-on-BT", data);
2894 if (ret) {
2895 bt_dev_err(hdev, "%s: IRQ request failed", __func__);
2896 return ret;
2897 }
2898
2899 ret = device_init_wakeup(dev, true);
2900 if (ret) {
2901 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__);
2902 return ret;
2903 }
2904
2905 data->oob_wake_irq = irq;
2906 disable_irq(irq);
2907 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq);
2908 return 0;
2909 }
2910 #endif
2911
2912 static int btusb_probe(struct usb_interface *intf,
2913 const struct usb_device_id *id)
2914 {
2915 struct usb_endpoint_descriptor *ep_desc;
2916 struct btusb_data *data;
2917 struct hci_dev *hdev;
2918 unsigned ifnum_base;
2919 int i, err;
2920
2921 BT_DBG("intf %p id %p", intf, id);
2922
2923 /* interface numbers are hardcoded in the spec */
2924 if (intf->cur_altsetting->desc.bInterfaceNumber != 0) {
2925 if (!(id->driver_info & BTUSB_IFNUM_2))
2926 return -ENODEV;
2927 if (intf->cur_altsetting->desc.bInterfaceNumber != 2)
2928 return -ENODEV;
2929 }
2930
2931 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber;
2932
2933 if (!id->driver_info) {
2934 const struct usb_device_id *match;
2935
2936 match = usb_match_id(intf, blacklist_table);
2937 if (match)
2938 id = match;
2939 }
2940
2941 if (id->driver_info == BTUSB_IGNORE)
2942 return -ENODEV;
2943
2944 if (id->driver_info & BTUSB_ATH3012) {
2945 struct usb_device *udev = interface_to_usbdev(intf);
2946
2947 /* Old firmware would otherwise let ath3k driver load
2948 * patch and sysconfig files
2949 */
2950 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
2951 return -ENODEV;
2952 }
2953
2954 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
2955 if (!data)
2956 return -ENOMEM;
2957
2958 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2959 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2960
2961 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
2962 data->intr_ep = ep_desc;
2963 continue;
2964 }
2965
2966 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
2967 data->bulk_tx_ep = ep_desc;
2968 continue;
2969 }
2970
2971 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
2972 data->bulk_rx_ep = ep_desc;
2973 continue;
2974 }
2975 }
2976
2977 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
2978 return -ENODEV;
2979
2980 if (id->driver_info & BTUSB_AMP) {
2981 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
2982 data->cmdreq = 0x2b;
2983 } else {
2984 data->cmdreq_type = USB_TYPE_CLASS;
2985 data->cmdreq = 0x00;
2986 }
2987
2988 data->udev = interface_to_usbdev(intf);
2989 data->intf = intf;
2990
2991 INIT_WORK(&data->work, btusb_work);
2992 INIT_WORK(&data->waker, btusb_waker);
2993 init_usb_anchor(&data->deferred);
2994 init_usb_anchor(&data->tx_anchor);
2995 spin_lock_init(&data->txlock);
2996
2997 init_usb_anchor(&data->intr_anchor);
2998 init_usb_anchor(&data->bulk_anchor);
2999 init_usb_anchor(&data->isoc_anchor);
3000 init_usb_anchor(&data->diag_anchor);
3001 spin_lock_init(&data->rxlock);
3002
3003 if (id->driver_info & BTUSB_INTEL_NEW) {
3004 data->recv_event = btusb_recv_event_intel;
3005 data->recv_bulk = btusb_recv_bulk_intel;
3006 set_bit(BTUSB_BOOTLOADER, &data->flags);
3007 } else {
3008 data->recv_event = hci_recv_frame;
3009 data->recv_bulk = btusb_recv_bulk;
3010 }
3011
3012 hdev = hci_alloc_dev();
3013 if (!hdev)
3014 return -ENOMEM;
3015
3016 hdev->bus = HCI_USB;
3017 hci_set_drvdata(hdev, data);
3018
3019 if (id->driver_info & BTUSB_AMP)
3020 hdev->dev_type = HCI_AMP;
3021 else
3022 hdev->dev_type = HCI_PRIMARY;
3023
3024 data->hdev = hdev;
3025
3026 SET_HCIDEV_DEV(hdev, &intf->dev);
3027
3028 hdev->open = btusb_open;
3029 hdev->close = btusb_close;
3030 hdev->flush = btusb_flush;
3031 hdev->send = btusb_send_frame;
3032 hdev->notify = btusb_notify;
3033
3034 #ifdef CONFIG_PM
3035 err = btusb_config_oob_wake(hdev);
3036 if (err)
3037 goto out_free_dev;
3038
3039 /* Marvell devices may need a specific chip configuration */
3040 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) {
3041 err = marvell_config_oob_wake(hdev);
3042 if (err)
3043 goto out_free_dev;
3044 }
3045 #endif
3046 if (id->driver_info & BTUSB_CW6622)
3047 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
3048
3049 if (id->driver_info & BTUSB_BCM2045)
3050 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
3051
3052 if (id->driver_info & BTUSB_BCM92035)
3053 hdev->setup = btusb_setup_bcm92035;
3054
3055 #ifdef CONFIG_BT_HCIBTUSB_BCM
3056 if (id->driver_info & BTUSB_BCM_PATCHRAM) {
3057 hdev->manufacturer = 15;
3058 hdev->setup = btbcm_setup_patchram;
3059 hdev->set_diag = btusb_bcm_set_diag;
3060 hdev->set_bdaddr = btbcm_set_bdaddr;
3061
3062 /* Broadcom LM_DIAG Interface numbers are hardcoded */
3063 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
3064 }
3065
3066 if (id->driver_info & BTUSB_BCM_APPLE) {
3067 hdev->manufacturer = 15;
3068 hdev->setup = btbcm_setup_apple;
3069 hdev->set_diag = btusb_bcm_set_diag;
3070
3071 /* Broadcom LM_DIAG Interface numbers are hardcoded */
3072 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
3073 }
3074 #endif
3075
3076 if (id->driver_info & BTUSB_INTEL) {
3077 hdev->manufacturer = 2;
3078 hdev->setup = btusb_setup_intel;
3079 hdev->shutdown = btusb_shutdown_intel;
3080 hdev->set_diag = btintel_set_diag_mfg;
3081 hdev->set_bdaddr = btintel_set_bdaddr;
3082 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
3083 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3084 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks);
3085 }
3086
3087 if (id->driver_info & BTUSB_INTEL_NEW) {
3088 hdev->manufacturer = 2;
3089 hdev->send = btusb_send_frame_intel;
3090 hdev->setup = btusb_setup_intel_new;
3091 hdev->hw_error = btintel_hw_error;
3092 hdev->set_diag = btintel_set_diag;
3093 hdev->set_bdaddr = btintel_set_bdaddr;
3094 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
3095 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks);
3096 }
3097
3098 if (id->driver_info & BTUSB_MARVELL)
3099 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
3100
3101 if (id->driver_info & BTUSB_SWAVE) {
3102 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
3103 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
3104 }
3105
3106 if (id->driver_info & BTUSB_INTEL_BOOT) {
3107 hdev->manufacturer = 2;
3108 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
3109 }
3110
3111 if (id->driver_info & BTUSB_ATH3012) {
3112 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
3113 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3114 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
3115 }
3116
3117 if (id->driver_info & BTUSB_QCA_ROME) {
3118 data->setup_on_usb = btusb_setup_qca;
3119 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
3120
3121 /* QCA Rome devices lose their updated firmware over suspend,
3122 * but the USB hub doesn't notice any status change.
3123 * explicitly request a device reset on resume.
3124 */
3125 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
3126 }
3127
3128 #ifdef CONFIG_BT_HCIBTUSB_RTL
3129 if (id->driver_info & BTUSB_REALTEK) {
3130 hdev->setup = btrtl_setup_realtek;
3131
3132 /* Realtek devices lose their updated firmware over suspend,
3133 * but the USB hub doesn't notice any status change.
3134 * Explicitly request a device reset on resume.
3135 */
3136 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
3137 }
3138 #endif
3139
3140 if (id->driver_info & BTUSB_AMP) {
3141 /* AMP controllers do not support SCO packets */
3142 data->isoc = NULL;
3143 } else {
3144 /* Interface orders are hardcoded in the specification */
3145 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1);
3146 data->isoc_ifnum = ifnum_base + 1;
3147 }
3148
3149 if (!reset)
3150 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3151
3152 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
3153 if (!disable_scofix)
3154 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
3155 }
3156
3157 if (id->driver_info & BTUSB_BROKEN_ISOC)
3158 data->isoc = NULL;
3159
3160 if (id->driver_info & BTUSB_DIGIANSWER) {
3161 data->cmdreq_type = USB_TYPE_VENDOR;
3162 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3163 }
3164
3165 if (id->driver_info & BTUSB_CSR) {
3166 struct usb_device *udev = data->udev;
3167 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
3168
3169 /* Old firmware would otherwise execute USB reset */
3170 if (bcdDevice < 0x117)
3171 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3172
3173 /* Fake CSR devices with broken commands */
3174 if (bcdDevice <= 0x100 || bcdDevice == 0x134)
3175 hdev->setup = btusb_setup_csr;
3176
3177 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3178 }
3179
3180 if (id->driver_info & BTUSB_SNIFFER) {
3181 struct usb_device *udev = data->udev;
3182
3183 /* New sniffer firmware has crippled HCI interface */
3184 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
3185 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
3186 }
3187
3188 if (id->driver_info & BTUSB_INTEL_BOOT) {
3189 /* A bug in the bootloader causes that interrupt interface is
3190 * only enabled after receiving SetInterface(0, AltSetting=0).
3191 */
3192 err = usb_set_interface(data->udev, 0, 0);
3193 if (err < 0) {
3194 BT_ERR("failed to set interface 0, alt 0 %d", err);
3195 goto out_free_dev;
3196 }
3197 }
3198
3199 if (data->isoc) {
3200 err = usb_driver_claim_interface(&btusb_driver,
3201 data->isoc, data);
3202 if (err < 0)
3203 goto out_free_dev;
3204 }
3205
3206 #ifdef CONFIG_BT_HCIBTUSB_BCM
3207 if (data->diag) {
3208 if (!usb_driver_claim_interface(&btusb_driver,
3209 data->diag, data))
3210 __set_diag_interface(hdev);
3211 else
3212 data->diag = NULL;
3213 }
3214 #endif
3215
3216 err = hci_register_dev(hdev);
3217 if (err < 0)
3218 goto out_free_dev;
3219
3220 usb_set_intfdata(intf, data);
3221
3222 return 0;
3223
3224 out_free_dev:
3225 hci_free_dev(hdev);
3226 return err;
3227 }
3228
3229 static void btusb_disconnect(struct usb_interface *intf)
3230 {
3231 struct btusb_data *data = usb_get_intfdata(intf);
3232 struct hci_dev *hdev;
3233
3234 BT_DBG("intf %p", intf);
3235
3236 if (!data)
3237 return;
3238
3239 hdev = data->hdev;
3240 usb_set_intfdata(data->intf, NULL);
3241
3242 if (data->isoc)
3243 usb_set_intfdata(data->isoc, NULL);
3244
3245 if (data->diag)
3246 usb_set_intfdata(data->diag, NULL);
3247
3248 hci_unregister_dev(hdev);
3249
3250 if (intf == data->intf) {
3251 if (data->isoc)
3252 usb_driver_release_interface(&btusb_driver, data->isoc);
3253 if (data->diag)
3254 usb_driver_release_interface(&btusb_driver, data->diag);
3255 } else if (intf == data->isoc) {
3256 if (data->diag)
3257 usb_driver_release_interface(&btusb_driver, data->diag);
3258 usb_driver_release_interface(&btusb_driver, data->intf);
3259 } else if (intf == data->diag) {
3260 usb_driver_release_interface(&btusb_driver, data->intf);
3261 if (data->isoc)
3262 usb_driver_release_interface(&btusb_driver, data->isoc);
3263 }
3264
3265 if (data->oob_wake_irq)
3266 device_init_wakeup(&data->udev->dev, false);
3267
3268 hci_free_dev(hdev);
3269 }
3270
3271 #ifdef CONFIG_PM
3272 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
3273 {
3274 struct btusb_data *data = usb_get_intfdata(intf);
3275
3276 BT_DBG("intf %p", intf);
3277
3278 if (data->suspend_count++)
3279 return 0;
3280
3281 spin_lock_irq(&data->txlock);
3282 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
3283 set_bit(BTUSB_SUSPENDING, &data->flags);
3284 spin_unlock_irq(&data->txlock);
3285 } else {
3286 spin_unlock_irq(&data->txlock);
3287 data->suspend_count--;
3288 return -EBUSY;
3289 }
3290
3291 cancel_work_sync(&data->work);
3292
3293 btusb_stop_traffic(data);
3294 usb_kill_anchored_urbs(&data->tx_anchor);
3295
3296 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) {
3297 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
3298 enable_irq_wake(data->oob_wake_irq);
3299 enable_irq(data->oob_wake_irq);
3300 }
3301
3302 return 0;
3303 }
3304
3305 static void play_deferred(struct btusb_data *data)
3306 {
3307 struct urb *urb;
3308 int err;
3309
3310 while ((urb = usb_get_from_anchor(&data->deferred))) {
3311 usb_anchor_urb(urb, &data->tx_anchor);
3312
3313 err = usb_submit_urb(urb, GFP_ATOMIC);
3314 if (err < 0) {
3315 if (err != -EPERM && err != -ENODEV)
3316 BT_ERR("%s urb %p submission failed (%d)",
3317 data->hdev->name, urb, -err);
3318 kfree(urb->setup_packet);
3319 usb_unanchor_urb(urb);
3320 usb_free_urb(urb);
3321 break;
3322 }
3323
3324 data->tx_in_flight++;
3325 usb_free_urb(urb);
3326 }
3327
3328 /* Cleanup the rest deferred urbs. */
3329 while ((urb = usb_get_from_anchor(&data->deferred))) {
3330 kfree(urb->setup_packet);
3331 usb_free_urb(urb);
3332 }
3333 }
3334
3335 static int btusb_resume(struct usb_interface *intf)
3336 {
3337 struct btusb_data *data = usb_get_intfdata(intf);
3338 struct hci_dev *hdev = data->hdev;
3339 int err = 0;
3340
3341 BT_DBG("intf %p", intf);
3342
3343 if (--data->suspend_count)
3344 return 0;
3345
3346 /* Disable only if not already disabled (keep it balanced) */
3347 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
3348 disable_irq(data->oob_wake_irq);
3349 disable_irq_wake(data->oob_wake_irq);
3350 }
3351
3352 if (!test_bit(HCI_RUNNING, &hdev->flags))
3353 goto done;
3354
3355 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
3356 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
3357 if (err < 0) {
3358 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
3359 goto failed;
3360 }
3361 }
3362
3363 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
3364 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
3365 if (err < 0) {
3366 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
3367 goto failed;
3368 }
3369
3370 btusb_submit_bulk_urb(hdev, GFP_NOIO);
3371 }
3372
3373 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
3374 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
3375 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
3376 else
3377 btusb_submit_isoc_urb(hdev, GFP_NOIO);
3378 }
3379
3380 spin_lock_irq(&data->txlock);
3381 play_deferred(data);
3382 clear_bit(BTUSB_SUSPENDING, &data->flags);
3383 spin_unlock_irq(&data->txlock);
3384 schedule_work(&data->work);
3385
3386 return 0;
3387
3388 failed:
3389 usb_scuttle_anchored_urbs(&data->deferred);
3390 done:
3391 spin_lock_irq(&data->txlock);
3392 clear_bit(BTUSB_SUSPENDING, &data->flags);
3393 spin_unlock_irq(&data->txlock);
3394
3395 return err;
3396 }
3397 #endif
3398
3399 static struct usb_driver btusb_driver = {
3400 .name = "btusb",
3401 .probe = btusb_probe,
3402 .disconnect = btusb_disconnect,
3403 #ifdef CONFIG_PM
3404 .suspend = btusb_suspend,
3405 .resume = btusb_resume,
3406 #endif
3407 .id_table = btusb_table,
3408 .supports_autosuspend = 1,
3409 .disable_hub_initiated_lpm = 1,
3410 };
3411
3412 module_usb_driver(btusb_driver);
3413
3414 module_param(disable_scofix, bool, 0644);
3415 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
3416
3417 module_param(force_scofix, bool, 0644);
3418 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
3419
3420 module_param(reset, bool, 0644);
3421 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
3422
3423 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
3424 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
3425 MODULE_VERSION(VERSION);
3426 MODULE_LICENSE("GPL");
Linux with added FPC-III support