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8
9#include <linux/dmi.h>
10#include <linux/module.h>
11#include <linux/usb.h>
12#include <linux/usb/quirks.h>
13#include <linux/firmware.h>
14#include <linux/iopoll.h>
15#include <linux/of_device.h>
16#include <linux/of_irq.h>
17#include <linux/suspend.h>
18#include <linux/gpio/consumer.h>
19#include <asm/unaligned.h>
20
21#include <net/bluetooth/bluetooth.h>
22#include <net/bluetooth/hci_core.h>
23
24#include "btintel.h"
25#include "btbcm.h"
26#include "btrtl.h"
27
28#define VERSION "0.8"
29
30static bool disable_scofix;
31static bool force_scofix;
32static bool enable_autosuspend = IS_ENABLED(CONFIG_BT_HCIBTUSB_AUTOSUSPEND);
33
34static bool reset = true;
35
36static struct usb_driver btusb_driver;
37
38#define BTUSB_IGNORE 0x01
39#define BTUSB_DIGIANSWER 0x02
40#define BTUSB_CSR 0x04
41#define BTUSB_SNIFFER 0x08
42#define BTUSB_BCM92035 0x10
43#define BTUSB_BROKEN_ISOC 0x20
44#define BTUSB_WRONG_SCO_MTU 0x40
45#define BTUSB_ATH3012 0x80
46#define BTUSB_INTEL_COMBINED 0x100
47#define BTUSB_INTEL_BOOT 0x200
48#define BTUSB_BCM_PATCHRAM 0x400
49#define BTUSB_MARVELL 0x800
50#define BTUSB_SWAVE 0x1000
51#define BTUSB_AMP 0x4000
52#define BTUSB_QCA_ROME 0x8000
53#define BTUSB_BCM_APPLE 0x10000
54#define BTUSB_REALTEK 0x20000
55#define BTUSB_BCM2045 0x40000
56#define BTUSB_IFNUM_2 0x80000
57#define BTUSB_CW6622 0x100000
58#define BTUSB_MEDIATEK 0x200000
59#define BTUSB_WIDEBAND_SPEECH 0x400000
60#define BTUSB_VALID_LE_STATES 0x800000
61#define BTUSB_QCA_WCN6855 0x1000000
62#define BTUSB_INTEL_BROKEN_INITIAL_NCMD 0x4000000
63
64static const struct usb_device_id btusb_table[] = {
65
66 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
67
68
69 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP },
70
71
72 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) },
73
74
75 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01),
76 .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 },
77
78
79 { USB_DEVICE(0x0e8d, 0x763f) },
80
81
82 { USB_DEVICE(0x0a5c, 0x21e1) },
83
84
85 { USB_DEVICE(0x05ac, 0x8213) },
86
87
88 { USB_DEVICE(0x05ac, 0x8215) },
89
90
91 { USB_DEVICE(0x05ac, 0x8218) },
92
93
94 { USB_DEVICE(0x05ac, 0x821b) },
95
96
97 { USB_DEVICE(0x05ac, 0x821f) },
98
99
100 { USB_DEVICE(0x05ac, 0x821a) },
101
102
103 { USB_DEVICE(0x05ac, 0x8281) },
104
105
106 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE },
107
108
109 { USB_DEVICE(0x04bf, 0x030a) },
110
111
112 { USB_DEVICE(0x044e, 0x3001) },
113 { USB_DEVICE(0x044e, 0x3002) },
114
115
116 { USB_DEVICE(0x0bdb, 0x1002) },
117
118
119 { USB_DEVICE(0x0c10, 0x0000) },
120
121
122 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM },
123
124
125 { USB_VENDOR_AND_INTERFACE_INFO(0x105b, 0xff, 0x01, 0x01),
126 .driver_info = BTUSB_BCM_PATCHRAM },
127
128
129 { USB_VENDOR_AND_INTERFACE_INFO(0x0bb4, 0xff, 0x01, 0x01),
130 .driver_info = BTUSB_BCM_PATCHRAM },
131
132
133 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01),
134 .driver_info = BTUSB_BCM_PATCHRAM },
135
136
137 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01),
138 .driver_info = BTUSB_BCM_PATCHRAM },
139
140
141 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01),
142 .driver_info = BTUSB_BCM_PATCHRAM },
143
144
145 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01),
146 .driver_info = BTUSB_BCM_PATCHRAM },
147
148
149 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01),
150 .driver_info = BTUSB_BCM_PATCHRAM },
151
152
153 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01),
154 .driver_info = BTUSB_BCM_PATCHRAM },
155
156
157 { USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01),
158 .driver_info = BTUSB_BCM_PATCHRAM },
159
160
161 { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01),
162 .driver_info = BTUSB_BCM_PATCHRAM },
163
164
165 { USB_DEVICE(0x8087, 0x0a5a),
166 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
167
168 { }
169};
170
171MODULE_DEVICE_TABLE(usb, btusb_table);
172
173static const struct usb_device_id blacklist_table[] = {
174
175 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
176
177
178 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
179
180
181 { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 },
182
183
184 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
185 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
186 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE },
187 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
188 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
189 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
190 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
191
192
193 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
194
195
196 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
197 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
198 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
199 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
200 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
201 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
202 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
203 { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 },
204 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
205 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
206 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
207 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
208 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
209 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
210 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
211 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
212 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
213 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
214 { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 },
215 { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 },
216 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
217 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
218 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
219 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
220 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
221 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
222 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
223 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
224 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
225 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
226 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
227 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
228 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
229 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 },
230 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
231 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
232 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
233 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
234 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
235 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
236 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
237 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 },
238 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
239 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
240 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
241 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
242 { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 },
243 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
244 { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 },
245 { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 },
246
247
248 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
249
250
251 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
252 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
253
254
255 { USB_DEVICE(0x0cf3, 0x535b), .driver_info = BTUSB_QCA_ROME |
256 BTUSB_WIDEBAND_SPEECH },
257 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME |
258 BTUSB_WIDEBAND_SPEECH },
259 { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME |
260 BTUSB_WIDEBAND_SPEECH },
261 { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME |
262 BTUSB_WIDEBAND_SPEECH },
263 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME |
264 BTUSB_WIDEBAND_SPEECH },
265 { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME |
266 BTUSB_WIDEBAND_SPEECH },
267 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME |
268 BTUSB_WIDEBAND_SPEECH },
269 { USB_DEVICE(0x0cf3, 0xe500), .driver_info = BTUSB_QCA_ROME |
270 BTUSB_WIDEBAND_SPEECH },
271 { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME |
272 BTUSB_WIDEBAND_SPEECH },
273 { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME |
274 BTUSB_WIDEBAND_SPEECH },
275 { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME |
276 BTUSB_WIDEBAND_SPEECH },
277 { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME |
278 BTUSB_WIDEBAND_SPEECH },
279 { USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME |
280 BTUSB_WIDEBAND_SPEECH },
281 { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME |
282 BTUSB_WIDEBAND_SPEECH },
283 { USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME |
284 BTUSB_WIDEBAND_SPEECH },
285 { USB_DEVICE(0x04ca, 0x3021), .driver_info = BTUSB_QCA_ROME |
286 BTUSB_WIDEBAND_SPEECH },
287 { USB_DEVICE(0x13d3, 0x3491), .driver_info = BTUSB_QCA_ROME |
288 BTUSB_WIDEBAND_SPEECH },
289 { USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME |
290 BTUSB_WIDEBAND_SPEECH },
291 { USB_DEVICE(0x13d3, 0x3501), .driver_info = BTUSB_QCA_ROME |
292 BTUSB_WIDEBAND_SPEECH },
293
294
295 { USB_DEVICE(0x0cf3, 0xe600), .driver_info = BTUSB_QCA_WCN6855 |
296 BTUSB_WIDEBAND_SPEECH |
297 BTUSB_VALID_LE_STATES },
298
299
300 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
301 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
302 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
303
304
305 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
306 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
307
308
309 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
310 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
311
312
313 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
314
315
316 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
317
318
319 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
320 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
321
322
323 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
324 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
325
326
327 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
328
329
330 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
331
332
333 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
334 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
335
336
337 { USB_DEVICE(0x0e5e, 0x6622),
338 .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622},
339
340
341 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE },
342
343
344 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
345 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
346
347
348 { USB_DEVICE(0x0a12, 0x0002),
349 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
350
351
352 { USB_DEVICE(0x16d3, 0x0002),
353 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
354
355
356 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
357 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
358 { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL },
359
360
361 { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_COMBINED },
362 { USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_COMBINED },
363 { USB_DEVICE(0x8087, 0x0029), .driver_info = BTUSB_INTEL_COMBINED },
364 { USB_DEVICE(0x8087, 0x0032), .driver_info = BTUSB_INTEL_COMBINED },
365 { USB_DEVICE(0x8087, 0x0033), .driver_info = BTUSB_INTEL_COMBINED },
366 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
367 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL_COMBINED |
368 BTUSB_INTEL_BROKEN_INITIAL_NCMD },
369 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL_COMBINED },
370 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_COMBINED },
371 { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL_COMBINED },
372 { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_COMBINED },
373
374
375 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
376 .driver_info = BTUSB_IGNORE },
377
378
379 { USB_DEVICE(0x0bda, 0xb00c), .driver_info = BTUSB_REALTEK |
380 BTUSB_WIDEBAND_SPEECH },
381 { USB_DEVICE(0x0bda, 0xc822), .driver_info = BTUSB_REALTEK |
382 BTUSB_WIDEBAND_SPEECH },
383
384
385 { USB_DEVICE(0x0bda, 0xc852), .driver_info = BTUSB_REALTEK |
386 BTUSB_WIDEBAND_SPEECH },
387
388
389 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
390 .driver_info = BTUSB_REALTEK },
391
392
393 { USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01),
394 .driver_info = BTUSB_MEDIATEK |
395 BTUSB_WIDEBAND_SPEECH |
396 BTUSB_VALID_LE_STATES },
397
398
399 { USB_DEVICE(0x13d3, 0x3560), .driver_info = BTUSB_MEDIATEK},
400
401
402 { USB_DEVICE(0x043e, 0x3109), .driver_info = BTUSB_MEDIATEK |
403 BTUSB_WIDEBAND_SPEECH |
404 BTUSB_VALID_LE_STATES },
405
406
407 { USB_DEVICE(0x04ca, 0x3802), .driver_info = BTUSB_MEDIATEK |
408 BTUSB_WIDEBAND_SPEECH |
409 BTUSB_VALID_LE_STATES },
410 { USB_DEVICE(0x13d3, 0x3563), .driver_info = BTUSB_MEDIATEK |
411 BTUSB_WIDEBAND_SPEECH |
412 BTUSB_VALID_LE_STATES },
413 { USB_DEVICE(0x0489, 0xe0cd), .driver_info = BTUSB_MEDIATEK |
414 BTUSB_WIDEBAND_SPEECH |
415 BTUSB_VALID_LE_STATES },
416
417
418 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
419 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
420
421
422 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
423 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
424 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
425 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
426 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
427 { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK },
428
429
430 { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK },
431
432
433 { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK },
434 { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK },
435
436
437 { USB_DEVICE(0x0b05, 0x190e), .driver_info = BTUSB_REALTEK |
438 BTUSB_WIDEBAND_SPEECH },
439
440
441 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
442 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
443 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
444 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
445 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
446
447
448 { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK },
449 { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK },
450
451
452 { USB_DEVICE(0x04ca, 0x4005), .driver_info = BTUSB_REALTEK |
453 BTUSB_WIDEBAND_SPEECH },
454
455 { USB_DEVICE(0x04ca, 0x4006), .driver_info = BTUSB_REALTEK |
456 BTUSB_WIDEBAND_SPEECH },
457
458 { USB_DEVICE(0x04c5, 0x161f), .driver_info = BTUSB_REALTEK |
459 BTUSB_WIDEBAND_SPEECH },
460 { USB_DEVICE(0x0b05, 0x18ef), .driver_info = BTUSB_REALTEK |
461 BTUSB_WIDEBAND_SPEECH },
462 { USB_DEVICE(0x13d3, 0x3548), .driver_info = BTUSB_REALTEK |
463 BTUSB_WIDEBAND_SPEECH },
464 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK |
465 BTUSB_WIDEBAND_SPEECH },
466 { USB_DEVICE(0x13d3, 0x3553), .driver_info = BTUSB_REALTEK |
467 BTUSB_WIDEBAND_SPEECH },
468 { USB_DEVICE(0x13d3, 0x3555), .driver_info = BTUSB_REALTEK |
469 BTUSB_WIDEBAND_SPEECH },
470 { USB_DEVICE(0x2ff8, 0x3051), .driver_info = BTUSB_REALTEK |
471 BTUSB_WIDEBAND_SPEECH },
472 { USB_DEVICE(0x1358, 0xc123), .driver_info = BTUSB_REALTEK |
473 BTUSB_WIDEBAND_SPEECH },
474 { USB_DEVICE(0x0bda, 0xc123), .driver_info = BTUSB_REALTEK |
475 BTUSB_WIDEBAND_SPEECH },
476 { USB_DEVICE(0x0cb5, 0xc547), .driver_info = BTUSB_REALTEK |
477 BTUSB_WIDEBAND_SPEECH },
478
479
480 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE },
481
482 { }
483};
484
485
486
487
488
489static const struct dmi_system_id btusb_needs_reset_resume_table[] = {
490 {
491
492 .matches = {
493 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
494 DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"),
495 },
496 },
497 {
498
499 .matches = {
500 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
501 DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"),
502 },
503 },
504 {
505
506 .matches = {
507 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
508 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"),
509 },
510 },
511 {}
512};
513
514#define BTUSB_MAX_ISOC_FRAMES 10
515
516#define BTUSB_INTR_RUNNING 0
517#define BTUSB_BULK_RUNNING 1
518#define BTUSB_ISOC_RUNNING 2
519#define BTUSB_SUSPENDING 3
520#define BTUSB_DID_ISO_RESUME 4
521#define BTUSB_BOOTLOADER 5
522#define BTUSB_DOWNLOADING 6
523#define BTUSB_FIRMWARE_LOADED 7
524#define BTUSB_FIRMWARE_FAILED 8
525#define BTUSB_BOOTING 9
526#define BTUSB_DIAG_RUNNING 10
527#define BTUSB_OOB_WAKE_ENABLED 11
528#define BTUSB_HW_RESET_ACTIVE 12
529#define BTUSB_TX_WAIT_VND_EVT 13
530#define BTUSB_WAKEUP_AUTOSUSPEND 14
531#define BTUSB_USE_ALT3_FOR_WBS 15
532
533struct btusb_data {
534 struct hci_dev *hdev;
535 struct usb_device *udev;
536 struct usb_interface *intf;
537 struct usb_interface *isoc;
538 struct usb_interface *diag;
539 unsigned isoc_ifnum;
540
541 unsigned long flags;
542
543 struct work_struct work;
544 struct work_struct waker;
545
546 struct usb_anchor deferred;
547 struct usb_anchor tx_anchor;
548 int tx_in_flight;
549 spinlock_t txlock;
550
551 struct usb_anchor intr_anchor;
552 struct usb_anchor bulk_anchor;
553 struct usb_anchor isoc_anchor;
554 struct usb_anchor diag_anchor;
555 struct usb_anchor ctrl_anchor;
556 spinlock_t rxlock;
557
558 struct sk_buff *evt_skb;
559 struct sk_buff *acl_skb;
560 struct sk_buff *sco_skb;
561
562 struct usb_endpoint_descriptor *intr_ep;
563 struct usb_endpoint_descriptor *bulk_tx_ep;
564 struct usb_endpoint_descriptor *bulk_rx_ep;
565 struct usb_endpoint_descriptor *isoc_tx_ep;
566 struct usb_endpoint_descriptor *isoc_rx_ep;
567 struct usb_endpoint_descriptor *diag_tx_ep;
568 struct usb_endpoint_descriptor *diag_rx_ep;
569
570 struct gpio_desc *reset_gpio;
571
572 __u8 cmdreq_type;
573 __u8 cmdreq;
574
575 unsigned int sco_num;
576 unsigned int air_mode;
577 bool usb_alt6_packet_flow;
578 int isoc_altsetting;
579 int suspend_count;
580
581 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
582 int (*recv_acl)(struct hci_dev *hdev, struct sk_buff *skb);
583 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
584
585 int (*setup_on_usb)(struct hci_dev *hdev);
586
587 int oob_wake_irq;
588 unsigned cmd_timeout_cnt;
589};
590
591static void btusb_intel_cmd_timeout(struct hci_dev *hdev)
592{
593 struct btusb_data *data = hci_get_drvdata(hdev);
594 struct gpio_desc *reset_gpio = data->reset_gpio;
595
596 if (++data->cmd_timeout_cnt < 5)
597 return;
598
599 if (!reset_gpio) {
600 bt_dev_err(hdev, "No way to reset. Ignoring and continuing");
601 return;
602 }
603
604
605
606
607
608
609
610
611 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
612 bt_dev_err(hdev, "last reset failed? Not resetting again");
613 return;
614 }
615
616 bt_dev_err(hdev, "Initiating HW reset via gpio");
617 gpiod_set_value_cansleep(reset_gpio, 1);
618 msleep(100);
619 gpiod_set_value_cansleep(reset_gpio, 0);
620}
621
622static void btusb_rtl_cmd_timeout(struct hci_dev *hdev)
623{
624 struct btusb_data *data = hci_get_drvdata(hdev);
625 struct gpio_desc *reset_gpio = data->reset_gpio;
626
627 if (++data->cmd_timeout_cnt < 5)
628 return;
629
630 if (!reset_gpio) {
631 bt_dev_err(hdev, "No gpio to reset Realtek device, ignoring");
632 return;
633 }
634
635
636
637
638
639
640
641 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
642 bt_dev_err(hdev, "last reset failed? Not resetting again");
643 return;
644 }
645
646 bt_dev_err(hdev, "Reset Realtek device via gpio");
647 gpiod_set_value_cansleep(reset_gpio, 1);
648 msleep(200);
649 gpiod_set_value_cansleep(reset_gpio, 0);
650}
651
652static void btusb_qca_cmd_timeout(struct hci_dev *hdev)
653{
654 struct btusb_data *data = hci_get_drvdata(hdev);
655 int err;
656
657 if (++data->cmd_timeout_cnt < 5)
658 return;
659
660 bt_dev_err(hdev, "Multiple cmd timeouts seen. Resetting usb device.");
661
662 err = usb_autopm_get_interface(data->intf);
663 if (!err)
664 usb_queue_reset_device(data->intf);
665 else
666 bt_dev_err(hdev, "Failed usb_autopm_get_interface with %d", err);
667}
668
669static inline void btusb_free_frags(struct btusb_data *data)
670{
671 unsigned long flags;
672
673 spin_lock_irqsave(&data->rxlock, flags);
674
675 kfree_skb(data->evt_skb);
676 data->evt_skb = NULL;
677
678 kfree_skb(data->acl_skb);
679 data->acl_skb = NULL;
680
681 kfree_skb(data->sco_skb);
682 data->sco_skb = NULL;
683
684 spin_unlock_irqrestore(&data->rxlock, flags);
685}
686
687static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
688{
689 struct sk_buff *skb;
690 unsigned long flags;
691 int err = 0;
692
693 spin_lock_irqsave(&data->rxlock, flags);
694 skb = data->evt_skb;
695
696 while (count) {
697 int len;
698
699 if (!skb) {
700 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
701 if (!skb) {
702 err = -ENOMEM;
703 break;
704 }
705
706 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
707 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE;
708 }
709
710 len = min_t(uint, hci_skb_expect(skb), count);
711 skb_put_data(skb, buffer, len);
712
713 count -= len;
714 buffer += len;
715 hci_skb_expect(skb) -= len;
716
717 if (skb->len == HCI_EVENT_HDR_SIZE) {
718
719 hci_skb_expect(skb) = hci_event_hdr(skb)->plen;
720
721 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
722 kfree_skb(skb);
723 skb = NULL;
724
725 err = -EILSEQ;
726 break;
727 }
728 }
729
730 if (!hci_skb_expect(skb)) {
731
732 data->recv_event(data->hdev, skb);
733 skb = NULL;
734 }
735 }
736
737 data->evt_skb = skb;
738 spin_unlock_irqrestore(&data->rxlock, flags);
739
740 return err;
741}
742
743static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
744{
745 struct sk_buff *skb;
746 unsigned long flags;
747 int err = 0;
748
749 spin_lock_irqsave(&data->rxlock, flags);
750 skb = data->acl_skb;
751
752 while (count) {
753 int len;
754
755 if (!skb) {
756 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
757 if (!skb) {
758 err = -ENOMEM;
759 break;
760 }
761
762 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT;
763 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE;
764 }
765
766 len = min_t(uint, hci_skb_expect(skb), count);
767 skb_put_data(skb, buffer, len);
768
769 count -= len;
770 buffer += len;
771 hci_skb_expect(skb) -= len;
772
773 if (skb->len == HCI_ACL_HDR_SIZE) {
774 __le16 dlen = hci_acl_hdr(skb)->dlen;
775
776
777 hci_skb_expect(skb) = __le16_to_cpu(dlen);
778
779 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
780 kfree_skb(skb);
781 skb = NULL;
782
783 err = -EILSEQ;
784 break;
785 }
786 }
787
788 if (!hci_skb_expect(skb)) {
789
790 data->recv_acl(data->hdev, skb);
791 skb = NULL;
792 }
793 }
794
795 data->acl_skb = skb;
796 spin_unlock_irqrestore(&data->rxlock, flags);
797
798 return err;
799}
800
801static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
802{
803 struct sk_buff *skb;
804 unsigned long flags;
805 int err = 0;
806
807 spin_lock_irqsave(&data->rxlock, flags);
808 skb = data->sco_skb;
809
810 while (count) {
811 int len;
812
813 if (!skb) {
814 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
815 if (!skb) {
816 err = -ENOMEM;
817 break;
818 }
819
820 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT;
821 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE;
822 }
823
824 len = min_t(uint, hci_skb_expect(skb), count);
825 skb_put_data(skb, buffer, len);
826
827 count -= len;
828 buffer += len;
829 hci_skb_expect(skb) -= len;
830
831 if (skb->len == HCI_SCO_HDR_SIZE) {
832
833 hci_skb_expect(skb) = hci_sco_hdr(skb)->dlen;
834
835 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
836 kfree_skb(skb);
837 skb = NULL;
838
839 err = -EILSEQ;
840 break;
841 }
842 }
843
844 if (!hci_skb_expect(skb)) {
845
846 hci_recv_frame(data->hdev, skb);
847 skb = NULL;
848 }
849 }
850
851 data->sco_skb = skb;
852 spin_unlock_irqrestore(&data->rxlock, flags);
853
854 return err;
855}
856
857static void btusb_intr_complete(struct urb *urb)
858{
859 struct hci_dev *hdev = urb->context;
860 struct btusb_data *data = hci_get_drvdata(hdev);
861 int err;
862
863 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
864 urb->actual_length);
865
866 if (!test_bit(HCI_RUNNING, &hdev->flags))
867 return;
868
869 if (urb->status == 0) {
870 hdev->stat.byte_rx += urb->actual_length;
871
872 if (btusb_recv_intr(data, urb->transfer_buffer,
873 urb->actual_length) < 0) {
874 bt_dev_err(hdev, "corrupted event packet");
875 hdev->stat.err_rx++;
876 }
877 } else if (urb->status == -ENOENT) {
878
879 return;
880 }
881
882 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
883 return;
884
885 usb_mark_last_busy(data->udev);
886 usb_anchor_urb(urb, &data->intr_anchor);
887
888 err = usb_submit_urb(urb, GFP_ATOMIC);
889 if (err < 0) {
890
891
892
893 if (err != -EPERM && err != -ENODEV)
894 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
895 urb, -err);
896 usb_unanchor_urb(urb);
897 }
898}
899
900static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
901{
902 struct btusb_data *data = hci_get_drvdata(hdev);
903 struct urb *urb;
904 unsigned char *buf;
905 unsigned int pipe;
906 int err, size;
907
908 BT_DBG("%s", hdev->name);
909
910 if (!data->intr_ep)
911 return -ENODEV;
912
913 urb = usb_alloc_urb(0, mem_flags);
914 if (!urb)
915 return -ENOMEM;
916
917 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
918
919 buf = kmalloc(size, mem_flags);
920 if (!buf) {
921 usb_free_urb(urb);
922 return -ENOMEM;
923 }
924
925 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
926
927 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
928 btusb_intr_complete, hdev, data->intr_ep->bInterval);
929
930 urb->transfer_flags |= URB_FREE_BUFFER;
931
932 usb_anchor_urb(urb, &data->intr_anchor);
933
934 err = usb_submit_urb(urb, mem_flags);
935 if (err < 0) {
936 if (err != -EPERM && err != -ENODEV)
937 bt_dev_err(hdev, "urb %p submission failed (%d)",
938 urb, -err);
939 usb_unanchor_urb(urb);
940 }
941
942 usb_free_urb(urb);
943
944 return err;
945}
946
947static void btusb_bulk_complete(struct urb *urb)
948{
949 struct hci_dev *hdev = urb->context;
950 struct btusb_data *data = hci_get_drvdata(hdev);
951 int err;
952
953 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
954 urb->actual_length);
955
956 if (!test_bit(HCI_RUNNING, &hdev->flags))
957 return;
958
959 if (urb->status == 0) {
960 hdev->stat.byte_rx += urb->actual_length;
961
962 if (data->recv_bulk(data, urb->transfer_buffer,
963 urb->actual_length) < 0) {
964 bt_dev_err(hdev, "corrupted ACL packet");
965 hdev->stat.err_rx++;
966 }
967 } else if (urb->status == -ENOENT) {
968
969 return;
970 }
971
972 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
973 return;
974
975 usb_anchor_urb(urb, &data->bulk_anchor);
976 usb_mark_last_busy(data->udev);
977
978 err = usb_submit_urb(urb, GFP_ATOMIC);
979 if (err < 0) {
980
981
982
983 if (err != -EPERM && err != -ENODEV)
984 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
985 urb, -err);
986 usb_unanchor_urb(urb);
987 }
988}
989
990static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
991{
992 struct btusb_data *data = hci_get_drvdata(hdev);
993 struct urb *urb;
994 unsigned char *buf;
995 unsigned int pipe;
996 int err, size = HCI_MAX_FRAME_SIZE;
997
998 BT_DBG("%s", hdev->name);
999
1000 if (!data->bulk_rx_ep)
1001 return -ENODEV;
1002
1003 urb = usb_alloc_urb(0, mem_flags);
1004 if (!urb)
1005 return -ENOMEM;
1006
1007 buf = kmalloc(size, mem_flags);
1008 if (!buf) {
1009 usb_free_urb(urb);
1010 return -ENOMEM;
1011 }
1012
1013 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
1014
1015 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1016 btusb_bulk_complete, hdev);
1017
1018 urb->transfer_flags |= URB_FREE_BUFFER;
1019
1020 usb_mark_last_busy(data->udev);
1021 usb_anchor_urb(urb, &data->bulk_anchor);
1022
1023 err = usb_submit_urb(urb, mem_flags);
1024 if (err < 0) {
1025 if (err != -EPERM && err != -ENODEV)
1026 bt_dev_err(hdev, "urb %p submission failed (%d)",
1027 urb, -err);
1028 usb_unanchor_urb(urb);
1029 }
1030
1031 usb_free_urb(urb);
1032
1033 return err;
1034}
1035
1036static void btusb_isoc_complete(struct urb *urb)
1037{
1038 struct hci_dev *hdev = urb->context;
1039 struct btusb_data *data = hci_get_drvdata(hdev);
1040 int i, err;
1041
1042 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1043 urb->actual_length);
1044
1045 if (!test_bit(HCI_RUNNING, &hdev->flags))
1046 return;
1047
1048 if (urb->status == 0) {
1049 for (i = 0; i < urb->number_of_packets; i++) {
1050 unsigned int offset = urb->iso_frame_desc[i].offset;
1051 unsigned int length = urb->iso_frame_desc[i].actual_length;
1052
1053 if (urb->iso_frame_desc[i].status)
1054 continue;
1055
1056 hdev->stat.byte_rx += length;
1057
1058 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
1059 length) < 0) {
1060 bt_dev_err(hdev, "corrupted SCO packet");
1061 hdev->stat.err_rx++;
1062 }
1063 }
1064 } else if (urb->status == -ENOENT) {
1065
1066 return;
1067 }
1068
1069 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
1070 return;
1071
1072 usb_anchor_urb(urb, &data->isoc_anchor);
1073
1074 err = usb_submit_urb(urb, GFP_ATOMIC);
1075 if (err < 0) {
1076
1077
1078
1079 if (err != -EPERM && err != -ENODEV)
1080 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1081 urb, -err);
1082 usb_unanchor_urb(urb);
1083 }
1084}
1085
1086static inline void __fill_isoc_descriptor_msbc(struct urb *urb, int len,
1087 int mtu, struct btusb_data *data)
1088{
1089 int i, offset = 0;
1090 unsigned int interval;
1091
1092 BT_DBG("len %d mtu %d", len, mtu);
1093
1094
1095
1096
1097
1098
1099
1100 if (data->usb_alt6_packet_flow) {
1101 interval = 7;
1102 data->usb_alt6_packet_flow = false;
1103 } else {
1104 interval = 6;
1105 data->usb_alt6_packet_flow = true;
1106 }
1107
1108 for (i = 0; i < interval; i++) {
1109 urb->iso_frame_desc[i].offset = offset;
1110 urb->iso_frame_desc[i].length = offset;
1111 }
1112
1113 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1114 urb->iso_frame_desc[i].offset = offset;
1115 urb->iso_frame_desc[i].length = len;
1116 i++;
1117 }
1118
1119 urb->number_of_packets = i;
1120}
1121
1122static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
1123{
1124 int i, offset = 0;
1125
1126 BT_DBG("len %d mtu %d", len, mtu);
1127
1128 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
1129 i++, offset += mtu, len -= mtu) {
1130 urb->iso_frame_desc[i].offset = offset;
1131 urb->iso_frame_desc[i].length = mtu;
1132 }
1133
1134 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1135 urb->iso_frame_desc[i].offset = offset;
1136 urb->iso_frame_desc[i].length = len;
1137 i++;
1138 }
1139
1140 urb->number_of_packets = i;
1141}
1142
1143static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
1144{
1145 struct btusb_data *data = hci_get_drvdata(hdev);
1146 struct urb *urb;
1147 unsigned char *buf;
1148 unsigned int pipe;
1149 int err, size;
1150
1151 BT_DBG("%s", hdev->name);
1152
1153 if (!data->isoc_rx_ep)
1154 return -ENODEV;
1155
1156 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
1157 if (!urb)
1158 return -ENOMEM;
1159
1160 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
1161 BTUSB_MAX_ISOC_FRAMES;
1162
1163 buf = kmalloc(size, mem_flags);
1164 if (!buf) {
1165 usb_free_urb(urb);
1166 return -ENOMEM;
1167 }
1168
1169 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
1170
1171 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
1172 hdev, data->isoc_rx_ep->bInterval);
1173
1174 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
1175
1176 __fill_isoc_descriptor(urb, size,
1177 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
1178
1179 usb_anchor_urb(urb, &data->isoc_anchor);
1180
1181 err = usb_submit_urb(urb, mem_flags);
1182 if (err < 0) {
1183 if (err != -EPERM && err != -ENODEV)
1184 bt_dev_err(hdev, "urb %p submission failed (%d)",
1185 urb, -err);
1186 usb_unanchor_urb(urb);
1187 }
1188
1189 usb_free_urb(urb);
1190
1191 return err;
1192}
1193
1194static void btusb_diag_complete(struct urb *urb)
1195{
1196 struct hci_dev *hdev = urb->context;
1197 struct btusb_data *data = hci_get_drvdata(hdev);
1198 int err;
1199
1200 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1201 urb->actual_length);
1202
1203 if (urb->status == 0) {
1204 struct sk_buff *skb;
1205
1206 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC);
1207 if (skb) {
1208 skb_put_data(skb, urb->transfer_buffer,
1209 urb->actual_length);
1210 hci_recv_diag(hdev, skb);
1211 }
1212 } else if (urb->status == -ENOENT) {
1213
1214 return;
1215 }
1216
1217 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags))
1218 return;
1219
1220 usb_anchor_urb(urb, &data->diag_anchor);
1221 usb_mark_last_busy(data->udev);
1222
1223 err = usb_submit_urb(urb, GFP_ATOMIC);
1224 if (err < 0) {
1225
1226
1227
1228 if (err != -EPERM && err != -ENODEV)
1229 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1230 urb, -err);
1231 usb_unanchor_urb(urb);
1232 }
1233}
1234
1235static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags)
1236{
1237 struct btusb_data *data = hci_get_drvdata(hdev);
1238 struct urb *urb;
1239 unsigned char *buf;
1240 unsigned int pipe;
1241 int err, size = HCI_MAX_FRAME_SIZE;
1242
1243 BT_DBG("%s", hdev->name);
1244
1245 if (!data->diag_rx_ep)
1246 return -ENODEV;
1247
1248 urb = usb_alloc_urb(0, mem_flags);
1249 if (!urb)
1250 return -ENOMEM;
1251
1252 buf = kmalloc(size, mem_flags);
1253 if (!buf) {
1254 usb_free_urb(urb);
1255 return -ENOMEM;
1256 }
1257
1258 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress);
1259
1260 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1261 btusb_diag_complete, hdev);
1262
1263 urb->transfer_flags |= URB_FREE_BUFFER;
1264
1265 usb_mark_last_busy(data->udev);
1266 usb_anchor_urb(urb, &data->diag_anchor);
1267
1268 err = usb_submit_urb(urb, mem_flags);
1269 if (err < 0) {
1270 if (err != -EPERM && err != -ENODEV)
1271 bt_dev_err(hdev, "urb %p submission failed (%d)",
1272 urb, -err);
1273 usb_unanchor_urb(urb);
1274 }
1275
1276 usb_free_urb(urb);
1277
1278 return err;
1279}
1280
1281static void btusb_tx_complete(struct urb *urb)
1282{
1283 struct sk_buff *skb = urb->context;
1284 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1285 struct btusb_data *data = hci_get_drvdata(hdev);
1286 unsigned long flags;
1287
1288 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1289 urb->actual_length);
1290
1291 if (!test_bit(HCI_RUNNING, &hdev->flags))
1292 goto done;
1293
1294 if (!urb->status)
1295 hdev->stat.byte_tx += urb->transfer_buffer_length;
1296 else
1297 hdev->stat.err_tx++;
1298
1299done:
1300 spin_lock_irqsave(&data->txlock, flags);
1301 data->tx_in_flight--;
1302 spin_unlock_irqrestore(&data->txlock, flags);
1303
1304 kfree(urb->setup_packet);
1305
1306 kfree_skb(skb);
1307}
1308
1309static void btusb_isoc_tx_complete(struct urb *urb)
1310{
1311 struct sk_buff *skb = urb->context;
1312 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1313
1314 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1315 urb->actual_length);
1316
1317 if (!test_bit(HCI_RUNNING, &hdev->flags))
1318 goto done;
1319
1320 if (!urb->status)
1321 hdev->stat.byte_tx += urb->transfer_buffer_length;
1322 else
1323 hdev->stat.err_tx++;
1324
1325done:
1326 kfree(urb->setup_packet);
1327
1328 kfree_skb(skb);
1329}
1330
1331static int btusb_open(struct hci_dev *hdev)
1332{
1333 struct btusb_data *data = hci_get_drvdata(hdev);
1334 int err;
1335
1336 BT_DBG("%s", hdev->name);
1337
1338 err = usb_autopm_get_interface(data->intf);
1339 if (err < 0)
1340 return err;
1341
1342
1343
1344
1345 if (data->setup_on_usb) {
1346 err = data->setup_on_usb(hdev);
1347 if (err < 0)
1348 goto setup_fail;
1349 }
1350
1351 data->intf->needs_remote_wakeup = 1;
1352
1353 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
1354 goto done;
1355
1356 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
1357 if (err < 0)
1358 goto failed;
1359
1360 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1361 if (err < 0) {
1362 usb_kill_anchored_urbs(&data->intr_anchor);
1363 goto failed;
1364 }
1365
1366 set_bit(BTUSB_BULK_RUNNING, &data->flags);
1367 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1368
1369 if (data->diag) {
1370 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL))
1371 set_bit(BTUSB_DIAG_RUNNING, &data->flags);
1372 }
1373
1374done:
1375 usb_autopm_put_interface(data->intf);
1376 return 0;
1377
1378failed:
1379 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1380setup_fail:
1381 usb_autopm_put_interface(data->intf);
1382 return err;
1383}
1384
1385static void btusb_stop_traffic(struct btusb_data *data)
1386{
1387 usb_kill_anchored_urbs(&data->intr_anchor);
1388 usb_kill_anchored_urbs(&data->bulk_anchor);
1389 usb_kill_anchored_urbs(&data->isoc_anchor);
1390 usb_kill_anchored_urbs(&data->diag_anchor);
1391 usb_kill_anchored_urbs(&data->ctrl_anchor);
1392}
1393
1394static int btusb_close(struct hci_dev *hdev)
1395{
1396 struct btusb_data *data = hci_get_drvdata(hdev);
1397 int err;
1398
1399 BT_DBG("%s", hdev->name);
1400
1401 cancel_work_sync(&data->work);
1402 cancel_work_sync(&data->waker);
1403
1404 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1405 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1406 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1407 clear_bit(BTUSB_DIAG_RUNNING, &data->flags);
1408
1409 btusb_stop_traffic(data);
1410 btusb_free_frags(data);
1411
1412 err = usb_autopm_get_interface(data->intf);
1413 if (err < 0)
1414 goto failed;
1415
1416 data->intf->needs_remote_wakeup = 0;
1417
1418
1419 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags))
1420 data->intf->needs_remote_wakeup = 1;
1421
1422 usb_autopm_put_interface(data->intf);
1423
1424failed:
1425 usb_scuttle_anchored_urbs(&data->deferred);
1426 return 0;
1427}
1428
1429static int btusb_flush(struct hci_dev *hdev)
1430{
1431 struct btusb_data *data = hci_get_drvdata(hdev);
1432
1433 BT_DBG("%s", hdev->name);
1434
1435 usb_kill_anchored_urbs(&data->tx_anchor);
1436 btusb_free_frags(data);
1437
1438 return 0;
1439}
1440
1441static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
1442{
1443 struct btusb_data *data = hci_get_drvdata(hdev);
1444 struct usb_ctrlrequest *dr;
1445 struct urb *urb;
1446 unsigned int pipe;
1447
1448 urb = usb_alloc_urb(0, GFP_KERNEL);
1449 if (!urb)
1450 return ERR_PTR(-ENOMEM);
1451
1452 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
1453 if (!dr) {
1454 usb_free_urb(urb);
1455 return ERR_PTR(-ENOMEM);
1456 }
1457
1458 dr->bRequestType = data->cmdreq_type;
1459 dr->bRequest = data->cmdreq;
1460 dr->wIndex = 0;
1461 dr->wValue = 0;
1462 dr->wLength = __cpu_to_le16(skb->len);
1463
1464 pipe = usb_sndctrlpipe(data->udev, 0x00);
1465
1466 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
1467 skb->data, skb->len, btusb_tx_complete, skb);
1468
1469 skb->dev = (void *)hdev;
1470
1471 return urb;
1472}
1473
1474static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
1475{
1476 struct btusb_data *data = hci_get_drvdata(hdev);
1477 struct urb *urb;
1478 unsigned int pipe;
1479
1480 if (!data->bulk_tx_ep)
1481 return ERR_PTR(-ENODEV);
1482
1483 urb = usb_alloc_urb(0, GFP_KERNEL);
1484 if (!urb)
1485 return ERR_PTR(-ENOMEM);
1486
1487 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
1488
1489 usb_fill_bulk_urb(urb, data->udev, pipe,
1490 skb->data, skb->len, btusb_tx_complete, skb);
1491
1492 skb->dev = (void *)hdev;
1493
1494 return urb;
1495}
1496
1497static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
1498{
1499 struct btusb_data *data = hci_get_drvdata(hdev);
1500 struct urb *urb;
1501 unsigned int pipe;
1502
1503 if (!data->isoc_tx_ep)
1504 return ERR_PTR(-ENODEV);
1505
1506 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
1507 if (!urb)
1508 return ERR_PTR(-ENOMEM);
1509
1510 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
1511
1512 usb_fill_int_urb(urb, data->udev, pipe,
1513 skb->data, skb->len, btusb_isoc_tx_complete,
1514 skb, data->isoc_tx_ep->bInterval);
1515
1516 urb->transfer_flags = URB_ISO_ASAP;
1517
1518 if (data->isoc_altsetting == 6)
1519 __fill_isoc_descriptor_msbc(urb, skb->len,
1520 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize),
1521 data);
1522 else
1523 __fill_isoc_descriptor(urb, skb->len,
1524 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
1525 skb->dev = (void *)hdev;
1526
1527 return urb;
1528}
1529
1530static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
1531{
1532 struct btusb_data *data = hci_get_drvdata(hdev);
1533 int err;
1534
1535 usb_anchor_urb(urb, &data->tx_anchor);
1536
1537 err = usb_submit_urb(urb, GFP_KERNEL);
1538 if (err < 0) {
1539 if (err != -EPERM && err != -ENODEV)
1540 bt_dev_err(hdev, "urb %p submission failed (%d)",
1541 urb, -err);
1542 kfree(urb->setup_packet);
1543 usb_unanchor_urb(urb);
1544 } else {
1545 usb_mark_last_busy(data->udev);
1546 }
1547
1548 usb_free_urb(urb);
1549 return err;
1550}
1551
1552static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
1553{
1554 struct btusb_data *data = hci_get_drvdata(hdev);
1555 unsigned long flags;
1556 bool suspending;
1557
1558 spin_lock_irqsave(&data->txlock, flags);
1559 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
1560 if (!suspending)
1561 data->tx_in_flight++;
1562 spin_unlock_irqrestore(&data->txlock, flags);
1563
1564 if (!suspending)
1565 return submit_tx_urb(hdev, urb);
1566
1567 usb_anchor_urb(urb, &data->deferred);
1568 schedule_work(&data->waker);
1569
1570 usb_free_urb(urb);
1571 return 0;
1572}
1573
1574static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
1575{
1576 struct urb *urb;
1577
1578 BT_DBG("%s", hdev->name);
1579
1580 switch (hci_skb_pkt_type(skb)) {
1581 case HCI_COMMAND_PKT:
1582 urb = alloc_ctrl_urb(hdev, skb);
1583 if (IS_ERR(urb))
1584 return PTR_ERR(urb);
1585
1586 hdev->stat.cmd_tx++;
1587 return submit_or_queue_tx_urb(hdev, urb);
1588
1589 case HCI_ACLDATA_PKT:
1590 urb = alloc_bulk_urb(hdev, skb);
1591 if (IS_ERR(urb))
1592 return PTR_ERR(urb);
1593
1594 hdev->stat.acl_tx++;
1595 return submit_or_queue_tx_urb(hdev, urb);
1596
1597 case HCI_SCODATA_PKT:
1598 if (hci_conn_num(hdev, SCO_LINK) < 1)
1599 return -ENODEV;
1600
1601 urb = alloc_isoc_urb(hdev, skb);
1602 if (IS_ERR(urb))
1603 return PTR_ERR(urb);
1604
1605 hdev->stat.sco_tx++;
1606 return submit_tx_urb(hdev, urb);
1607 }
1608
1609 return -EILSEQ;
1610}
1611
1612static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
1613{
1614 struct btusb_data *data = hci_get_drvdata(hdev);
1615
1616 BT_DBG("%s evt %d", hdev->name, evt);
1617
1618 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
1619 data->sco_num = hci_conn_num(hdev, SCO_LINK);
1620 data->air_mode = evt;
1621 schedule_work(&data->work);
1622 }
1623}
1624
1625static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
1626{
1627 struct btusb_data *data = hci_get_drvdata(hdev);
1628 struct usb_interface *intf = data->isoc;
1629 struct usb_endpoint_descriptor *ep_desc;
1630 int i, err;
1631
1632 if (!data->isoc)
1633 return -ENODEV;
1634
1635 err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting);
1636 if (err < 0) {
1637 bt_dev_err(hdev, "setting interface failed (%d)", -err);
1638 return err;
1639 }
1640
1641 data->isoc_altsetting = altsetting;
1642
1643 data->isoc_tx_ep = NULL;
1644 data->isoc_rx_ep = NULL;
1645
1646 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1647 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1648
1649 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
1650 data->isoc_tx_ep = ep_desc;
1651 continue;
1652 }
1653
1654 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
1655 data->isoc_rx_ep = ep_desc;
1656 continue;
1657 }
1658 }
1659
1660 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
1661 bt_dev_err(hdev, "invalid SCO descriptors");
1662 return -ENODEV;
1663 }
1664
1665 return 0;
1666}
1667
1668static int btusb_switch_alt_setting(struct hci_dev *hdev, int new_alts)
1669{
1670 struct btusb_data *data = hci_get_drvdata(hdev);
1671 int err;
1672
1673 if (data->isoc_altsetting != new_alts) {
1674 unsigned long flags;
1675
1676 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1677 usb_kill_anchored_urbs(&data->isoc_anchor);
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688 spin_lock_irqsave(&data->rxlock, flags);
1689 kfree_skb(data->sco_skb);
1690 data->sco_skb = NULL;
1691 spin_unlock_irqrestore(&data->rxlock, flags);
1692
1693 err = __set_isoc_interface(hdev, new_alts);
1694 if (err < 0)
1695 return err;
1696 }
1697
1698 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1699 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
1700 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1701 else
1702 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
1703 }
1704
1705 return 0;
1706}
1707
1708static struct usb_host_interface *btusb_find_altsetting(struct btusb_data *data,
1709 int alt)
1710{
1711 struct usb_interface *intf = data->isoc;
1712 int i;
1713
1714 BT_DBG("Looking for Alt no :%d", alt);
1715
1716 if (!intf)
1717 return NULL;
1718
1719 for (i = 0; i < intf->num_altsetting; i++) {
1720 if (intf->altsetting[i].desc.bAlternateSetting == alt)
1721 return &intf->altsetting[i];
1722 }
1723
1724 return NULL;
1725}
1726
1727static void btusb_work(struct work_struct *work)
1728{
1729 struct btusb_data *data = container_of(work, struct btusb_data, work);
1730 struct hci_dev *hdev = data->hdev;
1731 int new_alts = 0;
1732 int err;
1733
1734 if (data->sco_num > 0) {
1735 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
1736 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
1737 if (err < 0) {
1738 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1739 usb_kill_anchored_urbs(&data->isoc_anchor);
1740 return;
1741 }
1742
1743 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
1744 }
1745
1746 if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_CVSD) {
1747 if (hdev->voice_setting & 0x0020) {
1748 static const int alts[3] = { 2, 4, 5 };
1749
1750 new_alts = alts[data->sco_num - 1];
1751 } else {
1752 new_alts = data->sco_num;
1753 }
1754 } else if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_TRANSP) {
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764 if (btusb_find_altsetting(data, 6))
1765 new_alts = 6;
1766 else if (btusb_find_altsetting(data, 3) &&
1767 hdev->sco_mtu >= 72 &&
1768 test_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags))
1769 new_alts = 3;
1770 else
1771 new_alts = 1;
1772 }
1773
1774 if (btusb_switch_alt_setting(hdev, new_alts) < 0)
1775 bt_dev_err(hdev, "set USB alt:(%d) failed!", new_alts);
1776 } else {
1777 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1778 usb_kill_anchored_urbs(&data->isoc_anchor);
1779
1780 __set_isoc_interface(hdev, 0);
1781 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
1782 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
1783 }
1784}
1785
1786static void btusb_waker(struct work_struct *work)
1787{
1788 struct btusb_data *data = container_of(work, struct btusb_data, waker);
1789 int err;
1790
1791 err = usb_autopm_get_interface(data->intf);
1792 if (err < 0)
1793 return;
1794
1795 usb_autopm_put_interface(data->intf);
1796}
1797
1798static int btusb_setup_bcm92035(struct hci_dev *hdev)
1799{
1800 struct sk_buff *skb;
1801 u8 val = 0x00;
1802
1803 BT_DBG("%s", hdev->name);
1804
1805 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
1806 if (IS_ERR(skb))
1807 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb));
1808 else
1809 kfree_skb(skb);
1810
1811 return 0;
1812}
1813
1814static int btusb_setup_csr(struct hci_dev *hdev)
1815{
1816 struct btusb_data *data = hci_get_drvdata(hdev);
1817 u16 bcdDevice = le16_to_cpu(data->udev->descriptor.bcdDevice);
1818 struct hci_rp_read_local_version *rp;
1819 struct sk_buff *skb;
1820 bool is_fake = false;
1821 int ret;
1822
1823 BT_DBG("%s", hdev->name);
1824
1825 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1826 HCI_INIT_TIMEOUT);
1827 if (IS_ERR(skb)) {
1828 int err = PTR_ERR(skb);
1829 bt_dev_err(hdev, "CSR: Local version failed (%d)", err);
1830 return err;
1831 }
1832
1833 if (skb->len != sizeof(struct hci_rp_read_local_version)) {
1834 bt_dev_err(hdev, "CSR: Local version length mismatch");
1835 kfree_skb(skb);
1836 return -EIO;
1837 }
1838
1839 rp = (struct hci_rp_read_local_version *)skb->data;
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853 if (le16_to_cpu(rp->manufacturer) != 10 ||
1854 le16_to_cpu(rp->hci_rev) != le16_to_cpu(rp->lmp_subver))
1855 is_fake = true;
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868 else if (le16_to_cpu(rp->lmp_subver) <= 0x034e &&
1869 le16_to_cpu(rp->hci_ver) > BLUETOOTH_VER_1_1)
1870 is_fake = true;
1871
1872 else if (le16_to_cpu(rp->lmp_subver) <= 0x0529 &&
1873 le16_to_cpu(rp->hci_ver) > BLUETOOTH_VER_1_2)
1874 is_fake = true;
1875
1876 else if (le16_to_cpu(rp->lmp_subver) <= 0x0c5c &&
1877 le16_to_cpu(rp->hci_ver) > BLUETOOTH_VER_2_0)
1878 is_fake = true;
1879
1880 else if (le16_to_cpu(rp->lmp_subver) <= 0x1899 &&
1881 le16_to_cpu(rp->hci_ver) > BLUETOOTH_VER_2_1)
1882 is_fake = true;
1883
1884 else if (le16_to_cpu(rp->lmp_subver) <= 0x22bb &&
1885 le16_to_cpu(rp->hci_ver) > BLUETOOTH_VER_4_0)
1886 is_fake = true;
1887
1888
1889 else if (bcdDevice == 0x0134 &&
1890 le16_to_cpu(rp->lmp_subver) == 0x0c5c &&
1891 le16_to_cpu(rp->hci_ver) == BLUETOOTH_VER_2_0)
1892 is_fake = true;
1893
1894 if (is_fake) {
1895 bt_dev_warn(hdev, "CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once...");
1896
1897
1898
1899
1900
1901
1902 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
1903 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks);
1904
1905
1906
1907
1908 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1909 clear_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937 pm_runtime_allow(&data->udev->dev);
1938
1939 ret = pm_runtime_suspend(&data->udev->dev);
1940 if (ret >= 0)
1941 msleep(200);
1942 else
1943 bt_dev_err(hdev, "CSR: Failed to suspend the device for our Barrot 8041a02 receive-issue workaround");
1944
1945 pm_runtime_forbid(&data->udev->dev);
1946
1947 device_set_wakeup_capable(&data->udev->dev, false);
1948
1949
1950 if (enable_autosuspend)
1951 usb_enable_autosuspend(data->udev);
1952 }
1953
1954 kfree_skb(skb);
1955
1956 return 0;
1957}
1958
1959static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
1960{
1961 struct sk_buff *skb;
1962 struct hci_event_hdr *hdr;
1963 struct hci_ev_cmd_complete *evt;
1964
1965 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL);
1966 if (!skb)
1967 return -ENOMEM;
1968
1969 hdr = skb_put(skb, sizeof(*hdr));
1970 hdr->evt = HCI_EV_CMD_COMPLETE;
1971 hdr->plen = sizeof(*evt) + 1;
1972
1973 evt = skb_put(skb, sizeof(*evt));
1974 evt->ncmd = 0x01;
1975 evt->opcode = cpu_to_le16(opcode);
1976
1977 skb_put_u8(skb, 0x00);
1978
1979 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
1980
1981 return hci_recv_frame(hdev, skb);
1982}
1983
1984static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
1985 int count)
1986{
1987 struct hci_dev *hdev = data->hdev;
1988
1989
1990
1991
1992
1993 if (btintel_test_flag(hdev, INTEL_BOOTLOADER))
1994 return btusb_recv_intr(data, buffer, count);
1995
1996 return btusb_recv_bulk(data, buffer, count);
1997}
1998
1999static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb)
2000{
2001 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) {
2002 struct hci_event_hdr *hdr = (void *)skb->data;
2003
2004 if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff &&
2005 hdr->plen > 0) {
2006 const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1;
2007 unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1;
2008
2009 switch (skb->data[2]) {
2010 case 0x02:
2011
2012
2013
2014
2015 btintel_bootup(hdev, ptr, len);
2016 break;
2017 case 0x06:
2018
2019
2020
2021
2022
2023 btintel_secure_send_result(hdev, ptr, len);
2024 break;
2025 }
2026 }
2027 }
2028
2029 return hci_recv_frame(hdev, skb);
2030}
2031
2032static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
2033{
2034 struct urb *urb;
2035
2036 BT_DBG("%s", hdev->name);
2037
2038 switch (hci_skb_pkt_type(skb)) {
2039 case HCI_COMMAND_PKT:
2040 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) {
2041 struct hci_command_hdr *cmd = (void *)skb->data;
2042 __u16 opcode = le16_to_cpu(cmd->opcode);
2043
2044
2045
2046
2047
2048 if (opcode == 0xfc09)
2049 urb = alloc_bulk_urb(hdev, skb);
2050 else
2051 urb = alloc_ctrl_urb(hdev, skb);
2052
2053
2054
2055
2056
2057
2058 if (opcode == 0xfc01)
2059 inject_cmd_complete(hdev, opcode);
2060 } else {
2061 urb = alloc_ctrl_urb(hdev, skb);
2062 }
2063 if (IS_ERR(urb))
2064 return PTR_ERR(urb);
2065
2066 hdev->stat.cmd_tx++;
2067 return submit_or_queue_tx_urb(hdev, urb);
2068
2069 case HCI_ACLDATA_PKT:
2070 urb = alloc_bulk_urb(hdev, skb);
2071 if (IS_ERR(urb))
2072 return PTR_ERR(urb);
2073
2074 hdev->stat.acl_tx++;
2075 return submit_or_queue_tx_urb(hdev, urb);
2076
2077 case HCI_SCODATA_PKT:
2078 if (hci_conn_num(hdev, SCO_LINK) < 1)
2079 return -ENODEV;
2080
2081 urb = alloc_isoc_urb(hdev, skb);
2082 if (IS_ERR(urb))
2083 return PTR_ERR(urb);
2084
2085 hdev->stat.sco_tx++;
2086 return submit_tx_urb(hdev, urb);
2087 }
2088
2089 return -EILSEQ;
2090}
2091
2092
2093#define MTK_BT_MISC 0x70002510
2094#define MTK_BT_SUBSYS_RST 0x70002610
2095#define MTK_UDMA_INT_STA_BT 0x74000024
2096#define MTK_UDMA_INT_STA_BT1 0x74000308
2097#define MTK_BT_WDT_STATUS 0x740003A0
2098#define MTK_EP_RST_OPT 0x74011890
2099#define MTK_EP_RST_IN_OUT_OPT 0x00010001
2100#define MTK_BT_RST_DONE 0x00000100
2101#define MTK_BT_RESET_WAIT_MS 100
2102#define MTK_BT_RESET_NUM_TRIES 10
2103#define FIRMWARE_MT7663 "mediatek/mt7663pr2h.bin"
2104#define FIRMWARE_MT7668 "mediatek/mt7668pr2h.bin"
2105
2106#define HCI_WMT_MAX_EVENT_SIZE 64
2107
2108#define MTK_FW_ROM_PATCH_HEADER_SIZE 32
2109#define MTK_FW_ROM_PATCH_GD_SIZE 64
2110#define MTK_FW_ROM_PATCH_SEC_MAP_SIZE 64
2111#define MTK_SEC_MAP_COMMON_SIZE 12
2112#define MTK_SEC_MAP_NEED_SEND_SIZE 52
2113
2114enum {
2115 BTMTK_WMT_PATCH_DWNLD = 0x1,
2116 BTMTK_WMT_FUNC_CTRL = 0x6,
2117 BTMTK_WMT_RST = 0x7,
2118 BTMTK_WMT_SEMAPHORE = 0x17,
2119};
2120
2121enum {
2122 BTMTK_WMT_INVALID,
2123 BTMTK_WMT_PATCH_UNDONE,
2124 BTMTK_WMT_PATCH_PROGRESS,
2125 BTMTK_WMT_PATCH_DONE,
2126 BTMTK_WMT_ON_UNDONE,
2127 BTMTK_WMT_ON_DONE,
2128 BTMTK_WMT_ON_PROGRESS,
2129};
2130
2131struct btmtk_wmt_hdr {
2132 u8 dir;
2133 u8 op;
2134 __le16 dlen;
2135 u8 flag;
2136} __packed;
2137
2138struct btmtk_hci_wmt_cmd {
2139 struct btmtk_wmt_hdr hdr;
2140 u8 data[];
2141} __packed;
2142
2143struct btmtk_hci_wmt_evt {
2144 struct hci_event_hdr hhdr;
2145 struct btmtk_wmt_hdr whdr;
2146} __packed;
2147
2148struct btmtk_hci_wmt_evt_funcc {
2149 struct btmtk_hci_wmt_evt hwhdr;
2150 __be16 status;
2151} __packed;
2152
2153struct btmtk_tci_sleep {
2154 u8 mode;
2155 __le16 duration;
2156 __le16 host_duration;
2157 u8 host_wakeup_pin;
2158 u8 time_compensation;
2159} __packed;
2160
2161struct btmtk_hci_wmt_params {
2162 u8 op;
2163 u8 flag;
2164 u16 dlen;
2165 const void *data;
2166 u32 *status;
2167};
2168
2169struct btmtk_patch_header {
2170 u8 datetime[16];
2171 u8 platform[4];
2172 __le16 hwver;
2173 __le16 swver;
2174 __le32 magicnum;
2175} __packed;
2176
2177struct btmtk_global_desc {
2178 __le32 patch_ver;
2179 __le32 sub_sys;
2180 __le32 feature_opt;
2181 __le32 section_num;
2182} __packed;
2183
2184struct btmtk_section_map {
2185 __le32 sectype;
2186 __le32 secoffset;
2187 __le32 secsize;
2188 union {
2189 __le32 u4SecSpec[13];
2190 struct {
2191 __le32 dlAddr;
2192 __le32 dlsize;
2193 __le32 seckeyidx;
2194 __le32 alignlen;
2195 __le32 sectype;
2196 __le32 dlmodecrctype;
2197 __le32 crc;
2198 __le32 reserved[6];
2199 } bin_info_spec;
2200 };
2201} __packed;
2202
2203static void btusb_mtk_wmt_recv(struct urb *urb)
2204{
2205 struct hci_dev *hdev = urb->context;
2206 struct btusb_data *data = hci_get_drvdata(hdev);
2207 struct hci_event_hdr *hdr;
2208 struct sk_buff *skb;
2209 int err;
2210
2211 if (urb->status == 0 && urb->actual_length > 0) {
2212 hdev->stat.byte_rx += urb->actual_length;
2213
2214
2215
2216
2217 skb = bt_skb_alloc(HCI_WMT_MAX_EVENT_SIZE, GFP_ATOMIC);
2218 if (!skb) {
2219 hdev->stat.err_rx++;
2220 return;
2221 }
2222
2223 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
2224 skb_put_data(skb, urb->transfer_buffer, urb->actual_length);
2225
2226 hdr = (void *)skb->data;
2227
2228
2229
2230
2231 hdr->evt = 0xff;
2232
2233
2234
2235
2236 if (test_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags)) {
2237 data->evt_skb = skb_clone(skb, GFP_ATOMIC);
2238 if (!data->evt_skb) {
2239 kfree_skb(skb);
2240 return;
2241 }
2242 }
2243
2244 err = hci_recv_frame(hdev, skb);
2245 if (err < 0) {
2246 kfree_skb(data->evt_skb);
2247 data->evt_skb = NULL;
2248 return;
2249 }
2250
2251 if (test_and_clear_bit(BTUSB_TX_WAIT_VND_EVT,
2252 &data->flags)) {
2253
2254 smp_mb__after_atomic();
2255 wake_up_bit(&data->flags,
2256 BTUSB_TX_WAIT_VND_EVT);
2257 }
2258 return;
2259 } else if (urb->status == -ENOENT) {
2260
2261 return;
2262 }
2263
2264 usb_mark_last_busy(data->udev);
2265
2266
2267
2268
2269
2270
2271
2272
2273 udelay(500);
2274
2275 usb_anchor_urb(urb, &data->ctrl_anchor);
2276 err = usb_submit_urb(urb, GFP_ATOMIC);
2277 if (err < 0) {
2278
2279
2280
2281 if (err != -EPERM && err != -ENODEV)
2282 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
2283 urb, -err);
2284 usb_unanchor_urb(urb);
2285 }
2286}
2287
2288static int btusb_mtk_submit_wmt_recv_urb(struct hci_dev *hdev)
2289{
2290 struct btusb_data *data = hci_get_drvdata(hdev);
2291 struct usb_ctrlrequest *dr;
2292 unsigned char *buf;
2293 int err, size = 64;
2294 unsigned int pipe;
2295 struct urb *urb;
2296
2297 urb = usb_alloc_urb(0, GFP_KERNEL);
2298 if (!urb)
2299 return -ENOMEM;
2300
2301 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
2302 if (!dr) {
2303 usb_free_urb(urb);
2304 return -ENOMEM;
2305 }
2306
2307 dr->bRequestType = USB_TYPE_VENDOR | USB_DIR_IN;
2308 dr->bRequest = 1;
2309 dr->wIndex = cpu_to_le16(0);
2310 dr->wValue = cpu_to_le16(48);
2311 dr->wLength = cpu_to_le16(size);
2312
2313 buf = kmalloc(size, GFP_KERNEL);
2314 if (!buf) {
2315 kfree(dr);
2316 usb_free_urb(urb);
2317 return -ENOMEM;
2318 }
2319
2320 pipe = usb_rcvctrlpipe(data->udev, 0);
2321
2322 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
2323 buf, size, btusb_mtk_wmt_recv, hdev);
2324
2325 urb->transfer_flags |= URB_FREE_BUFFER;
2326
2327 usb_anchor_urb(urb, &data->ctrl_anchor);
2328 err = usb_submit_urb(urb, GFP_KERNEL);
2329 if (err < 0) {
2330 if (err != -EPERM && err != -ENODEV)
2331 bt_dev_err(hdev, "urb %p submission failed (%d)",
2332 urb, -err);
2333 usb_unanchor_urb(urb);
2334 }
2335
2336 usb_free_urb(urb);
2337
2338 return err;
2339}
2340
2341static int btusb_mtk_hci_wmt_sync(struct hci_dev *hdev,
2342 struct btmtk_hci_wmt_params *wmt_params)
2343{
2344 struct btusb_data *data = hci_get_drvdata(hdev);
2345 struct btmtk_hci_wmt_evt_funcc *wmt_evt_funcc;
2346 u32 hlen, status = BTMTK_WMT_INVALID;
2347 struct btmtk_hci_wmt_evt *wmt_evt;
2348 struct btmtk_hci_wmt_cmd *wc;
2349 struct btmtk_wmt_hdr *hdr;
2350 int err;
2351
2352
2353 hlen = sizeof(*hdr) + wmt_params->dlen;
2354 if (hlen > 255)
2355 return -EINVAL;
2356
2357 wc = kzalloc(hlen, GFP_KERNEL);
2358 if (!wc)
2359 return -ENOMEM;
2360
2361 hdr = &wc->hdr;
2362 hdr->dir = 1;
2363 hdr->op = wmt_params->op;
2364 hdr->dlen = cpu_to_le16(wmt_params->dlen + 1);
2365 hdr->flag = wmt_params->flag;
2366 memcpy(wc->data, wmt_params->data, wmt_params->dlen);
2367
2368 set_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2369
2370 err = __hci_cmd_send(hdev, 0xfc6f, hlen, wc);
2371
2372 if (err < 0) {
2373 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2374 goto err_free_wc;
2375 }
2376
2377
2378 err = btusb_mtk_submit_wmt_recv_urb(hdev);
2379 if (err < 0)
2380 goto err_free_wc;
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391 err = wait_on_bit_timeout(&data->flags, BTUSB_TX_WAIT_VND_EVT,
2392 TASK_INTERRUPTIBLE, HCI_INIT_TIMEOUT);
2393 if (err == -EINTR) {
2394 bt_dev_err(hdev, "Execution of wmt command interrupted");
2395 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2396 goto err_free_wc;
2397 }
2398
2399 if (err) {
2400 bt_dev_err(hdev, "Execution of wmt command timed out");
2401 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2402 err = -ETIMEDOUT;
2403 goto err_free_wc;
2404 }
2405
2406
2407 wmt_evt = (struct btmtk_hci_wmt_evt *)data->evt_skb->data;
2408 if (wmt_evt->whdr.op != hdr->op) {
2409 bt_dev_err(hdev, "Wrong op received %d expected %d",
2410 wmt_evt->whdr.op, hdr->op);
2411 err = -EIO;
2412 goto err_free_skb;
2413 }
2414
2415 switch (wmt_evt->whdr.op) {
2416 case BTMTK_WMT_SEMAPHORE:
2417 if (wmt_evt->whdr.flag == 2)
2418 status = BTMTK_WMT_PATCH_UNDONE;
2419 else
2420 status = BTMTK_WMT_PATCH_DONE;
2421 break;
2422 case BTMTK_WMT_FUNC_CTRL:
2423 wmt_evt_funcc = (struct btmtk_hci_wmt_evt_funcc *)wmt_evt;
2424 if (be16_to_cpu(wmt_evt_funcc->status) == 0x404)
2425 status = BTMTK_WMT_ON_DONE;
2426 else if (be16_to_cpu(wmt_evt_funcc->status) == 0x420)
2427 status = BTMTK_WMT_ON_PROGRESS;
2428 else
2429 status = BTMTK_WMT_ON_UNDONE;
2430 break;
2431 case BTMTK_WMT_PATCH_DWNLD:
2432 if (wmt_evt->whdr.flag == 2)
2433 status = BTMTK_WMT_PATCH_DONE;
2434 else if (wmt_evt->whdr.flag == 1)
2435 status = BTMTK_WMT_PATCH_PROGRESS;
2436 else
2437 status = BTMTK_WMT_PATCH_UNDONE;
2438 break;
2439 }
2440
2441 if (wmt_params->status)
2442 *wmt_params->status = status;
2443
2444err_free_skb:
2445 kfree_skb(data->evt_skb);
2446 data->evt_skb = NULL;
2447err_free_wc:
2448 kfree(wc);
2449 return err;
2450}
2451
2452static int btusb_mtk_setup_firmware_79xx(struct hci_dev *hdev, const char *fwname)
2453{
2454 struct btmtk_hci_wmt_params wmt_params;
2455 struct btmtk_global_desc *globaldesc = NULL;
2456 struct btmtk_section_map *sectionmap;
2457 const struct firmware *fw;
2458 const u8 *fw_ptr;
2459 const u8 *fw_bin_ptr;
2460 int err, dlen, i, status;
2461 u8 flag, first_block, retry;
2462 u32 section_num, dl_size, section_offset;
2463 u8 cmd[64];
2464
2465 err = request_firmware(&fw, fwname, &hdev->dev);
2466 if (err < 0) {
2467 bt_dev_err(hdev, "Failed to load firmware file (%d)", err);
2468 return err;
2469 }
2470
2471 fw_ptr = fw->data;
2472 fw_bin_ptr = fw_ptr;
2473 globaldesc = (struct btmtk_global_desc *)(fw_ptr + MTK_FW_ROM_PATCH_HEADER_SIZE);
2474 section_num = le32_to_cpu(globaldesc->section_num);
2475
2476 for (i = 0; i < section_num; i++) {
2477 first_block = 1;
2478 fw_ptr = fw_bin_ptr;
2479 sectionmap = (struct btmtk_section_map *)(fw_ptr + MTK_FW_ROM_PATCH_HEADER_SIZE +
2480 MTK_FW_ROM_PATCH_GD_SIZE + MTK_FW_ROM_PATCH_SEC_MAP_SIZE * i);
2481
2482 section_offset = le32_to_cpu(sectionmap->secoffset);
2483 dl_size = le32_to_cpu(sectionmap->bin_info_spec.dlsize);
2484
2485 if (dl_size > 0) {
2486 retry = 20;
2487 while (retry > 0) {
2488 cmd[0] = 0;
2489 memcpy(cmd + 1,
2490 fw_ptr + MTK_FW_ROM_PATCH_HEADER_SIZE +
2491 MTK_FW_ROM_PATCH_GD_SIZE + MTK_FW_ROM_PATCH_SEC_MAP_SIZE * i +
2492 MTK_SEC_MAP_COMMON_SIZE,
2493 MTK_SEC_MAP_NEED_SEND_SIZE + 1);
2494
2495 wmt_params.op = BTMTK_WMT_PATCH_DWNLD;
2496 wmt_params.status = &status;
2497 wmt_params.flag = 0;
2498 wmt_params.dlen = MTK_SEC_MAP_NEED_SEND_SIZE + 1;
2499 wmt_params.data = &cmd;
2500
2501 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2502 if (err < 0) {
2503 bt_dev_err(hdev, "Failed to send wmt patch dwnld (%d)",
2504 err);
2505 goto err_release_fw;
2506 }
2507
2508 if (status == BTMTK_WMT_PATCH_UNDONE) {
2509 break;
2510 } else if (status == BTMTK_WMT_PATCH_PROGRESS) {
2511 msleep(100);
2512 retry--;
2513 } else if (status == BTMTK_WMT_PATCH_DONE) {
2514 goto next_section;
2515 } else {
2516 bt_dev_err(hdev, "Failed wmt patch dwnld status (%d)",
2517 status);
2518 goto err_release_fw;
2519 }
2520 }
2521
2522 fw_ptr += section_offset;
2523 wmt_params.op = BTMTK_WMT_PATCH_DWNLD;
2524 wmt_params.status = NULL;
2525
2526 while (dl_size > 0) {
2527 dlen = min_t(int, 250, dl_size);
2528 if (first_block == 1) {
2529 flag = 1;
2530 first_block = 0;
2531 } else if (dl_size - dlen <= 0) {
2532 flag = 3;
2533 } else {
2534 flag = 2;
2535 }
2536
2537 wmt_params.flag = flag;
2538 wmt_params.dlen = dlen;
2539 wmt_params.data = fw_ptr;
2540
2541 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2542 if (err < 0) {
2543 bt_dev_err(hdev, "Failed to send wmt patch dwnld (%d)",
2544 err);
2545 goto err_release_fw;
2546 }
2547
2548 dl_size -= dlen;
2549 fw_ptr += dlen;
2550 }
2551 }
2552next_section:
2553 continue;
2554 }
2555
2556 usleep_range(100000, 120000);
2557
2558err_release_fw:
2559 release_firmware(fw);
2560
2561 return err;
2562}
2563
2564static int btusb_mtk_setup_firmware(struct hci_dev *hdev, const char *fwname)
2565{
2566 struct btmtk_hci_wmt_params wmt_params;
2567 const struct firmware *fw;
2568 const u8 *fw_ptr;
2569 size_t fw_size;
2570 int err, dlen;
2571 u8 flag, param;
2572
2573 err = request_firmware(&fw, fwname, &hdev->dev);
2574 if (err < 0) {
2575 bt_dev_err(hdev, "Failed to load firmware file (%d)", err);
2576 return err;
2577 }
2578
2579
2580 param = 1;
2581 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
2582 wmt_params.flag = 3;
2583 wmt_params.dlen = sizeof(param);
2584 wmt_params.data = ¶m;
2585 wmt_params.status = NULL;
2586
2587 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2588 if (err < 0) {
2589 bt_dev_err(hdev, "Failed to power on data RAM (%d)", err);
2590 goto err_release_fw;
2591 }
2592
2593 fw_ptr = fw->data;
2594 fw_size = fw->size;
2595
2596
2597 if (fw_size < 30) {
2598 err = -EINVAL;
2599 goto err_release_fw;
2600 }
2601
2602 fw_size -= 30;
2603 fw_ptr += 30;
2604 flag = 1;
2605
2606 wmt_params.op = BTMTK_WMT_PATCH_DWNLD;
2607 wmt_params.status = NULL;
2608
2609 while (fw_size > 0) {
2610 dlen = min_t(int, 250, fw_size);
2611
2612
2613 if (fw_size - dlen <= 0)
2614 flag = 3;
2615 else if (fw_size < fw->size - 30)
2616 flag = 2;
2617
2618 wmt_params.flag = flag;
2619 wmt_params.dlen = dlen;
2620 wmt_params.data = fw_ptr;
2621
2622 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2623 if (err < 0) {
2624 bt_dev_err(hdev, "Failed to send wmt patch dwnld (%d)",
2625 err);
2626 goto err_release_fw;
2627 }
2628
2629 fw_size -= dlen;
2630 fw_ptr += dlen;
2631 }
2632
2633 wmt_params.op = BTMTK_WMT_RST;
2634 wmt_params.flag = 4;
2635 wmt_params.dlen = 0;
2636 wmt_params.data = NULL;
2637 wmt_params.status = NULL;
2638
2639
2640 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2641 if (err < 0) {
2642 bt_dev_err(hdev, "Failed to send wmt rst (%d)", err);
2643 goto err_release_fw;
2644 }
2645
2646
2647 usleep_range(10000, 12000);
2648
2649err_release_fw:
2650 release_firmware(fw);
2651
2652 return err;
2653}
2654
2655static int btusb_mtk_func_query(struct hci_dev *hdev)
2656{
2657 struct btmtk_hci_wmt_params wmt_params;
2658 int status, err;
2659 u8 param = 0;
2660
2661
2662 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
2663 wmt_params.flag = 4;
2664 wmt_params.dlen = sizeof(param);
2665 wmt_params.data = ¶m;
2666 wmt_params.status = &status;
2667
2668 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2669 if (err < 0) {
2670 bt_dev_err(hdev, "Failed to query function status (%d)", err);
2671 return err;
2672 }
2673
2674 return status;
2675}
2676
2677static int btusb_mtk_uhw_reg_write(struct btusb_data *data, u32 reg, u32 val)
2678{
2679 struct hci_dev *hdev = data->hdev;
2680 int pipe, err;
2681 void *buf;
2682
2683 buf = kzalloc(4, GFP_KERNEL);
2684 if (!buf)
2685 return -ENOMEM;
2686
2687 put_unaligned_le32(val, buf);
2688
2689 pipe = usb_sndctrlpipe(data->udev, 0);
2690 err = usb_control_msg(data->udev, pipe, 0x02,
2691 0x5E,
2692 reg >> 16, reg & 0xffff,
2693 buf, 4, USB_CTRL_SET_TIMEOUT);
2694 if (err < 0) {
2695 bt_dev_err(hdev, "Failed to write uhw reg(%d)", err);
2696 goto err_free_buf;
2697 }
2698
2699err_free_buf:
2700 kfree(buf);
2701
2702 return err;
2703}
2704
2705static int btusb_mtk_uhw_reg_read(struct btusb_data *data, u32 reg, u32 *val)
2706{
2707 struct hci_dev *hdev = data->hdev;
2708 int pipe, err;
2709 void *buf;
2710
2711 buf = kzalloc(4, GFP_KERNEL);
2712 if (!buf)
2713 return -ENOMEM;
2714
2715 pipe = usb_rcvctrlpipe(data->udev, 0);
2716 err = usb_control_msg(data->udev, pipe, 0x01,
2717 0xDE,
2718 reg >> 16, reg & 0xffff,
2719 buf, 4, USB_CTRL_SET_TIMEOUT);
2720 if (err < 0) {
2721 bt_dev_err(hdev, "Failed to read uhw reg(%d)", err);
2722 goto err_free_buf;
2723 }
2724
2725 *val = get_unaligned_le32(buf);
2726 bt_dev_dbg(hdev, "reg=%x, value=0x%08x", reg, *val);
2727
2728err_free_buf:
2729 kfree(buf);
2730
2731 return err;
2732}
2733
2734static int btusb_mtk_reg_read(struct btusb_data *data, u32 reg, u32 *val)
2735{
2736 int pipe, err, size = sizeof(u32);
2737 void *buf;
2738
2739 buf = kzalloc(size, GFP_KERNEL);
2740 if (!buf)
2741 return -ENOMEM;
2742
2743 pipe = usb_rcvctrlpipe(data->udev, 0);
2744 err = usb_control_msg(data->udev, pipe, 0x63,
2745 USB_TYPE_VENDOR | USB_DIR_IN,
2746 reg >> 16, reg & 0xffff,
2747 buf, size, USB_CTRL_SET_TIMEOUT);
2748 if (err < 0)
2749 goto err_free_buf;
2750
2751 *val = get_unaligned_le32(buf);
2752
2753err_free_buf:
2754 kfree(buf);
2755
2756 return err;
2757}
2758
2759static int btusb_mtk_id_get(struct btusb_data *data, u32 reg, u32 *id)
2760{
2761 return btusb_mtk_reg_read(data, reg, id);
2762}
2763
2764static int btusb_mtk_setup(struct hci_dev *hdev)
2765{
2766 struct btusb_data *data = hci_get_drvdata(hdev);
2767 struct btmtk_hci_wmt_params wmt_params;
2768 ktime_t calltime, delta, rettime;
2769 struct btmtk_tci_sleep tci_sleep;
2770 unsigned long long duration;
2771 struct sk_buff *skb;
2772 const char *fwname;
2773 int err, status;
2774 u32 dev_id;
2775 char fw_bin_name[64];
2776 u32 fw_version = 0;
2777 u8 param;
2778
2779 calltime = ktime_get();
2780
2781 err = btusb_mtk_id_get(data, 0x80000008, &dev_id);
2782 if (err < 0) {
2783 bt_dev_err(hdev, "Failed to get device id (%d)", err);
2784 return err;
2785 }
2786
2787 if (!dev_id) {
2788 err = btusb_mtk_id_get(data, 0x70010200, &dev_id);
2789 if (err < 0) {
2790 bt_dev_err(hdev, "Failed to get device id (%d)", err);
2791 return err;
2792 }
2793 err = btusb_mtk_id_get(data, 0x80021004, &fw_version);
2794 if (err < 0) {
2795 bt_dev_err(hdev, "Failed to get fw version (%d)", err);
2796 return err;
2797 }
2798 }
2799
2800 switch (dev_id) {
2801 case 0x7663:
2802 fwname = FIRMWARE_MT7663;
2803 break;
2804 case 0x7668:
2805 fwname = FIRMWARE_MT7668;
2806 break;
2807 case 0x7961:
2808 snprintf(fw_bin_name, sizeof(fw_bin_name),
2809 "mediatek/BT_RAM_CODE_MT%04x_1_%x_hdr.bin",
2810 dev_id & 0xffff, (fw_version & 0xff) + 1);
2811 err = btusb_mtk_setup_firmware_79xx(hdev, fw_bin_name);
2812
2813
2814 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, MTK_EP_RST_IN_OUT_OPT);
2815
2816
2817 param = 1;
2818 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
2819 wmt_params.flag = 0;
2820 wmt_params.dlen = sizeof(param);
2821 wmt_params.data = ¶m;
2822 wmt_params.status = NULL;
2823
2824 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2825 if (err < 0) {
2826 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
2827 return err;
2828 }
2829
2830 hci_set_msft_opcode(hdev, 0xFD30);
2831 goto done;
2832 default:
2833 bt_dev_err(hdev, "Unsupported hardware variant (%08x)",
2834 dev_id);
2835 return -ENODEV;
2836 }
2837
2838
2839 wmt_params.op = BTMTK_WMT_SEMAPHORE;
2840 wmt_params.flag = 1;
2841 wmt_params.dlen = 0;
2842 wmt_params.data = NULL;
2843 wmt_params.status = &status;
2844
2845 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2846 if (err < 0) {
2847 bt_dev_err(hdev, "Failed to query firmware status (%d)", err);
2848 return err;
2849 }
2850
2851 if (status == BTMTK_WMT_PATCH_DONE) {
2852 bt_dev_info(hdev, "firmware already downloaded");
2853 goto ignore_setup_fw;
2854 }
2855
2856
2857 err = btusb_mtk_setup_firmware(hdev, fwname);
2858 if (err < 0)
2859 return err;
2860
2861ignore_setup_fw:
2862 err = readx_poll_timeout(btusb_mtk_func_query, hdev, status,
2863 status < 0 || status != BTMTK_WMT_ON_PROGRESS,
2864 2000, 5000000);
2865
2866 if (err < 0)
2867 return err;
2868
2869
2870 if (status < 0)
2871 return status;
2872
2873 if (status == BTMTK_WMT_ON_DONE) {
2874 bt_dev_info(hdev, "function already on");
2875 goto ignore_func_on;
2876 }
2877
2878
2879 param = 1;
2880 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
2881 wmt_params.flag = 0;
2882 wmt_params.dlen = sizeof(param);
2883 wmt_params.data = ¶m;
2884 wmt_params.status = NULL;
2885
2886 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2887 if (err < 0) {
2888 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
2889 return err;
2890 }
2891
2892ignore_func_on:
2893
2894 tci_sleep.mode = 0x5;
2895 tci_sleep.duration = cpu_to_le16(0x640);
2896 tci_sleep.host_duration = cpu_to_le16(0x640);
2897 tci_sleep.host_wakeup_pin = 0;
2898 tci_sleep.time_compensation = 0;
2899
2900 skb = __hci_cmd_sync(hdev, 0xfc7a, sizeof(tci_sleep), &tci_sleep,
2901 HCI_INIT_TIMEOUT);
2902 if (IS_ERR(skb)) {
2903 err = PTR_ERR(skb);
2904 bt_dev_err(hdev, "Failed to apply low power setting (%d)", err);
2905 return err;
2906 }
2907 kfree_skb(skb);
2908
2909done:
2910 rettime = ktime_get();
2911 delta = ktime_sub(rettime, calltime);
2912 duration = (unsigned long long)ktime_to_ns(delta) >> 10;
2913
2914 bt_dev_info(hdev, "Device setup in %llu usecs", duration);
2915
2916 return 0;
2917}
2918
2919static int btusb_mtk_shutdown(struct hci_dev *hdev)
2920{
2921 struct btmtk_hci_wmt_params wmt_params;
2922 u8 param = 0;
2923 int err;
2924
2925
2926 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
2927 wmt_params.flag = 0;
2928 wmt_params.dlen = sizeof(param);
2929 wmt_params.data = ¶m;
2930 wmt_params.status = NULL;
2931
2932 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2933 if (err < 0) {
2934 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
2935 return err;
2936 }
2937
2938 return 0;
2939}
2940
2941static void btusb_mtk_cmd_timeout(struct hci_dev *hdev)
2942{
2943 struct btusb_data *data = hci_get_drvdata(hdev);
2944 u32 val;
2945 int err, retry = 0;
2946
2947
2948 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
2949 bt_dev_err(hdev, "last reset failed? Not resetting again");
2950 return;
2951 }
2952
2953 err = usb_autopm_get_interface(data->intf);
2954 if (err < 0)
2955 return;
2956
2957 btusb_stop_traffic(data);
2958 usb_kill_anchored_urbs(&data->tx_anchor);
2959
2960
2961 bt_dev_dbg(hdev, "Initiating reset mechanism via uhw");
2962 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, MTK_EP_RST_IN_OUT_OPT);
2963 btusb_mtk_uhw_reg_read(data, MTK_BT_WDT_STATUS, &val);
2964
2965
2966 btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, 1);
2967 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT, 0x000000FF);
2968 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT, &val);
2969 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT1, 0x000000FF);
2970 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT1, &val);
2971
2972 msleep(20);
2973 btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, 0);
2974 btusb_mtk_uhw_reg_read(data, MTK_BT_SUBSYS_RST, &val);
2975
2976
2977 do {
2978 btusb_mtk_uhw_reg_read(data, MTK_BT_MISC, &val);
2979 if (val & MTK_BT_RST_DONE) {
2980 bt_dev_dbg(hdev, "Bluetooth Reset Successfully");
2981 break;
2982 }
2983
2984 bt_dev_dbg(hdev, "Polling Bluetooth Reset CR");
2985 retry++;
2986 msleep(MTK_BT_RESET_WAIT_MS);
2987 } while (retry < MTK_BT_RESET_NUM_TRIES);
2988
2989 btusb_mtk_id_get(data, 0x70010200, &val);
2990 if (!val)
2991 bt_dev_err(hdev, "Can't get device id, subsys reset fail.");
2992
2993 usb_queue_reset_device(data->intf);
2994
2995 clear_bit(BTUSB_HW_RESET_ACTIVE, &data->flags);
2996}
2997
2998static int btusb_recv_acl_mtk(struct hci_dev *hdev, struct sk_buff *skb)
2999{
3000 struct btusb_data *data = hci_get_drvdata(hdev);
3001 u16 handle = le16_to_cpu(hci_acl_hdr(skb)->handle);
3002
3003 switch (handle) {
3004 case 0xfc6f:
3005
3006
3007
3008 usb_disable_autosuspend(data->udev);
3009 fallthrough;
3010 case 0x05ff:
3011 case 0x05fe:
3012 return hci_recv_diag(hdev, skb);
3013 }
3014
3015 return hci_recv_frame(hdev, skb);
3016}
3017
3018MODULE_FIRMWARE(FIRMWARE_MT7663);
3019MODULE_FIRMWARE(FIRMWARE_MT7668);
3020
3021#ifdef CONFIG_PM
3022
3023static int marvell_config_oob_wake(struct hci_dev *hdev)
3024{
3025 struct sk_buff *skb;
3026 struct btusb_data *data = hci_get_drvdata(hdev);
3027 struct device *dev = &data->udev->dev;
3028 u16 pin, gap, opcode;
3029 int ret;
3030 u8 cmd[5];
3031
3032
3033 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) ||
3034 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap))
3035 return 0;
3036
3037
3038 opcode = hci_opcode_pack(0x3F, 0x59);
3039 cmd[0] = opcode & 0xFF;
3040 cmd[1] = opcode >> 8;
3041 cmd[2] = 2;
3042 cmd[3] = pin;
3043 cmd[4] = gap;
3044
3045 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
3046 if (!skb) {
3047 bt_dev_err(hdev, "%s: No memory", __func__);
3048 return -ENOMEM;
3049 }
3050
3051 skb_put_data(skb, cmd, sizeof(cmd));
3052 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT;
3053
3054 ret = btusb_send_frame(hdev, skb);
3055 if (ret) {
3056 bt_dev_err(hdev, "%s: configuration failed", __func__);
3057 kfree_skb(skb);
3058 return ret;
3059 }
3060
3061 return 0;
3062}
3063#endif
3064
3065static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
3066 const bdaddr_t *bdaddr)
3067{
3068 struct sk_buff *skb;
3069 u8 buf[8];
3070 long ret;
3071
3072 buf[0] = 0xfe;
3073 buf[1] = sizeof(bdaddr_t);
3074 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
3075
3076 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
3077 if (IS_ERR(skb)) {
3078 ret = PTR_ERR(skb);
3079 bt_dev_err(hdev, "changing Marvell device address failed (%ld)",
3080 ret);
3081 return ret;
3082 }
3083 kfree_skb(skb);
3084
3085 return 0;
3086}
3087
3088static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
3089 const bdaddr_t *bdaddr)
3090{
3091 struct sk_buff *skb;
3092 u8 buf[10];
3093 long ret;
3094
3095 buf[0] = 0x01;
3096 buf[1] = 0x01;
3097 buf[2] = 0x00;
3098 buf[3] = sizeof(bdaddr_t);
3099 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
3100
3101 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
3102 if (IS_ERR(skb)) {
3103 ret = PTR_ERR(skb);
3104 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
3105 return ret;
3106 }
3107 kfree_skb(skb);
3108
3109 return 0;
3110}
3111
3112static int btusb_set_bdaddr_wcn6855(struct hci_dev *hdev,
3113 const bdaddr_t *bdaddr)
3114{
3115 struct sk_buff *skb;
3116 u8 buf[6];
3117 long ret;
3118
3119 memcpy(buf, bdaddr, sizeof(bdaddr_t));
3120
3121 skb = __hci_cmd_sync_ev(hdev, 0xfc14, sizeof(buf), buf,
3122 HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT);
3123 if (IS_ERR(skb)) {
3124 ret = PTR_ERR(skb);
3125 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
3126 return ret;
3127 }
3128 kfree_skb(skb);
3129
3130 return 0;
3131}
3132
3133#define QCA_DFU_PACKET_LEN 4096
3134
3135#define QCA_GET_TARGET_VERSION 0x09
3136#define QCA_CHECK_STATUS 0x05
3137#define QCA_DFU_DOWNLOAD 0x01
3138
3139#define QCA_SYSCFG_UPDATED 0x40
3140#define QCA_PATCH_UPDATED 0x80
3141#define QCA_DFU_TIMEOUT 3000
3142#define QCA_FLAG_MULTI_NVM 0x80
3143
3144struct qca_version {
3145 __le32 rom_version;
3146 __le32 patch_version;
3147 __le32 ram_version;
3148 __le16 board_id;
3149 __le16 flag;
3150 __u8 reserved[4];
3151} __packed;
3152
3153struct qca_rampatch_version {
3154 __le16 rom_version_high;
3155 __le16 rom_version_low;
3156 __le16 patch_version;
3157} __packed;
3158
3159struct qca_device_info {
3160 u32 rom_version;
3161 u8 rampatch_hdr;
3162 u8 nvm_hdr;
3163 u8 ver_offset;
3164};
3165
3166static const struct qca_device_info qca_devices_table[] = {
3167 { 0x00000100, 20, 4, 8 },
3168 { 0x00000101, 20, 4, 8 },
3169 { 0x00000200, 28, 4, 16 },
3170 { 0x00000201, 28, 4, 16 },
3171 { 0x00000300, 28, 4, 16 },
3172 { 0x00000302, 28, 4, 16 },
3173 { 0x00130100, 40, 4, 16 },
3174 { 0x00130200, 40, 4, 16 },
3175};
3176
3177static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request,
3178 void *data, u16 size)
3179{
3180 int pipe, err;
3181 u8 *buf;
3182
3183 buf = kmalloc(size, GFP_KERNEL);
3184 if (!buf)
3185 return -ENOMEM;
3186
3187
3188
3189
3190 pipe = usb_rcvctrlpipe(udev, 0);
3191 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
3192 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
3193 if (err < 0) {
3194 dev_err(&udev->dev, "Failed to access otp area (%d)", err);
3195 goto done;
3196 }
3197
3198 memcpy(data, buf, size);
3199
3200done:
3201 kfree(buf);
3202
3203 return err;
3204}
3205
3206static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
3207 const struct firmware *firmware,
3208 size_t hdr_size)
3209{
3210 struct btusb_data *btdata = hci_get_drvdata(hdev);
3211 struct usb_device *udev = btdata->udev;
3212 size_t count, size, sent = 0;
3213 int pipe, len, err;
3214 u8 *buf;
3215
3216 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
3217 if (!buf)
3218 return -ENOMEM;
3219
3220 count = firmware->size;
3221
3222 size = min_t(size_t, count, hdr_size);
3223 memcpy(buf, firmware->data, size);
3224
3225
3226
3227
3228
3229
3230 pipe = usb_sndctrlpipe(udev, 0);
3231 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
3232 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
3233 if (err < 0) {
3234 bt_dev_err(hdev, "Failed to send headers (%d)", err);
3235 goto done;
3236 }
3237
3238 sent += size;
3239 count -= size;
3240
3241
3242
3243
3244 msleep(20);
3245
3246 while (count) {
3247 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
3248
3249 memcpy(buf, firmware->data + sent, size);
3250
3251 pipe = usb_sndbulkpipe(udev, 0x02);
3252 err = usb_bulk_msg(udev, pipe, buf, size, &len,
3253 QCA_DFU_TIMEOUT);
3254 if (err < 0) {
3255 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)",
3256 sent, firmware->size, err);
3257 break;
3258 }
3259
3260 if (size != len) {
3261 bt_dev_err(hdev, "Failed to get bulk buffer");
3262 err = -EILSEQ;
3263 break;
3264 }
3265
3266 sent += size;
3267 count -= size;
3268 }
3269
3270done:
3271 kfree(buf);
3272 return err;
3273}
3274
3275static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
3276 struct qca_version *ver,
3277 const struct qca_device_info *info)
3278{
3279 struct qca_rampatch_version *rver;
3280 const struct firmware *fw;
3281 u32 ver_rom, ver_patch, rver_rom;
3282 u16 rver_rom_low, rver_rom_high, rver_patch;
3283 char fwname[64];
3284 int err;
3285
3286 ver_rom = le32_to_cpu(ver->rom_version);
3287 ver_patch = le32_to_cpu(ver->patch_version);
3288
3289 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom);
3290
3291 err = request_firmware(&fw, fwname, &hdev->dev);
3292 if (err) {
3293 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)",
3294 fwname, err);
3295 return err;
3296 }
3297
3298 bt_dev_info(hdev, "using rampatch file: %s", fwname);
3299
3300 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
3301 rver_rom_low = le16_to_cpu(rver->rom_version_low);
3302 rver_patch = le16_to_cpu(rver->patch_version);
3303
3304 if (ver_rom & ~0xffffU) {
3305 rver_rom_high = le16_to_cpu(rver->rom_version_high);
3306 rver_rom = le32_to_cpu(rver_rom_high << 16 | rver_rom_low);
3307 } else {
3308 rver_rom = rver_rom_low;
3309 }
3310
3311 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, "
3312 "firmware rome 0x%x build 0x%x",
3313 rver_rom, rver_patch, ver_rom, ver_patch);
3314
3315 if (rver_rom != ver_rom || rver_patch <= ver_patch) {
3316 bt_dev_err(hdev, "rampatch file version did not match with firmware");
3317 err = -EINVAL;
3318 goto done;
3319 }
3320
3321 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
3322
3323done:
3324 release_firmware(fw);
3325
3326 return err;
3327}
3328
3329static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
3330 struct qca_version *ver,
3331 const struct qca_device_info *info)
3332{
3333 const struct firmware *fw;
3334 char fwname[64];
3335 int err;
3336
3337 if (((ver->flag >> 8) & 0xff) == QCA_FLAG_MULTI_NVM) {
3338
3339 if (le16_to_cpu(ver->board_id) == 0x0) {
3340 snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin",
3341 le32_to_cpu(ver->rom_version));
3342 } else {
3343 snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x_%04x.bin",
3344 le32_to_cpu(ver->rom_version),
3345 le16_to_cpu(ver->board_id));
3346 }
3347 } else {
3348 snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin",
3349 le32_to_cpu(ver->rom_version));
3350 }
3351
3352 err = request_firmware(&fw, fwname, &hdev->dev);
3353 if (err) {
3354 bt_dev_err(hdev, "failed to request NVM file: %s (%d)",
3355 fwname, err);
3356 return err;
3357 }
3358
3359 bt_dev_info(hdev, "using NVM file: %s", fwname);
3360
3361 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
3362
3363 release_firmware(fw);
3364
3365 return err;
3366}
3367
3368
3369static bool btusb_qca_need_patch(struct usb_device *udev)
3370{
3371 struct qca_version ver;
3372
3373 if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3374 sizeof(ver)) < 0)
3375 return false;
3376
3377 return !(le32_to_cpu(ver.rom_version) & ~0xffffU);
3378}
3379
3380static int btusb_setup_qca(struct hci_dev *hdev)
3381{
3382 struct btusb_data *btdata = hci_get_drvdata(hdev);
3383 struct usb_device *udev = btdata->udev;
3384 const struct qca_device_info *info = NULL;
3385 struct qca_version ver;
3386 u32 ver_rom;
3387 u8 status;
3388 int i, err;
3389
3390 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3391 sizeof(ver));
3392 if (err < 0)
3393 return err;
3394
3395 ver_rom = le32_to_cpu(ver.rom_version);
3396
3397 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
3398 if (ver_rom == qca_devices_table[i].rom_version)
3399 info = &qca_devices_table[i];
3400 }
3401 if (!info) {
3402
3403
3404
3405
3406 if (ver_rom & ~0xffffU)
3407 return 0;
3408
3409 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom);
3410 return -ENODEV;
3411 }
3412
3413 err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status,
3414 sizeof(status));
3415 if (err < 0)
3416 return err;
3417
3418 if (!(status & QCA_PATCH_UPDATED)) {
3419 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
3420 if (err < 0)
3421 return err;
3422 }
3423
3424 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3425 sizeof(ver));
3426 if (err < 0)
3427 return err;
3428
3429 if (!(status & QCA_SYSCFG_UPDATED)) {
3430 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
3431 if (err < 0)
3432 return err;
3433 }
3434
3435 return 0;
3436}
3437
3438static inline int __set_diag_interface(struct hci_dev *hdev)
3439{
3440 struct btusb_data *data = hci_get_drvdata(hdev);
3441 struct usb_interface *intf = data->diag;
3442 int i;
3443
3444 if (!data->diag)
3445 return -ENODEV;
3446
3447 data->diag_tx_ep = NULL;
3448 data->diag_rx_ep = NULL;
3449
3450 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
3451 struct usb_endpoint_descriptor *ep_desc;
3452
3453 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
3454
3455 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
3456 data->diag_tx_ep = ep_desc;
3457 continue;
3458 }
3459
3460 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
3461 data->diag_rx_ep = ep_desc;
3462 continue;
3463 }
3464 }
3465
3466 if (!data->diag_tx_ep || !data->diag_rx_ep) {
3467 bt_dev_err(hdev, "invalid diagnostic descriptors");
3468 return -ENODEV;
3469 }
3470
3471 return 0;
3472}
3473
3474static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable)
3475{
3476 struct btusb_data *data = hci_get_drvdata(hdev);
3477 struct sk_buff *skb;
3478 struct urb *urb;
3479 unsigned int pipe;
3480
3481 if (!data->diag_tx_ep)
3482 return ERR_PTR(-ENODEV);
3483
3484 urb = usb_alloc_urb(0, GFP_KERNEL);
3485 if (!urb)
3486 return ERR_PTR(-ENOMEM);
3487
3488 skb = bt_skb_alloc(2, GFP_KERNEL);
3489 if (!skb) {
3490 usb_free_urb(urb);
3491 return ERR_PTR(-ENOMEM);
3492 }
3493
3494 skb_put_u8(skb, 0xf0);
3495 skb_put_u8(skb, enable);
3496
3497 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress);
3498
3499 usb_fill_bulk_urb(urb, data->udev, pipe,
3500 skb->data, skb->len, btusb_tx_complete, skb);
3501
3502 skb->dev = (void *)hdev;
3503
3504 return urb;
3505}
3506
3507static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable)
3508{
3509 struct btusb_data *data = hci_get_drvdata(hdev);
3510 struct urb *urb;
3511
3512 if (!data->diag)
3513 return -ENODEV;
3514
3515 if (!test_bit(HCI_RUNNING, &hdev->flags))
3516 return -ENETDOWN;
3517
3518 urb = alloc_diag_urb(hdev, enable);
3519 if (IS_ERR(urb))
3520 return PTR_ERR(urb);
3521
3522 return submit_or_queue_tx_urb(hdev, urb);
3523}
3524
3525#ifdef CONFIG_PM
3526static irqreturn_t btusb_oob_wake_handler(int irq, void *priv)
3527{
3528 struct btusb_data *data = priv;
3529
3530 pm_wakeup_event(&data->udev->dev, 0);
3531 pm_system_wakeup();
3532
3533
3534 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
3535 disable_irq_nosync(irq);
3536 disable_irq_wake(irq);
3537 }
3538 return IRQ_HANDLED;
3539}
3540
3541static const struct of_device_id btusb_match_table[] = {
3542 { .compatible = "usb1286,204e" },
3543 { .compatible = "usbcf3,e300" },
3544 { .compatible = "usb4ca,301a" },
3545 { }
3546};
3547MODULE_DEVICE_TABLE(of, btusb_match_table);
3548
3549
3550static int btusb_config_oob_wake(struct hci_dev *hdev)
3551{
3552 struct btusb_data *data = hci_get_drvdata(hdev);
3553 struct device *dev = &data->udev->dev;
3554 int irq, ret;
3555
3556 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
3557
3558 if (!of_match_device(btusb_match_table, dev))
3559 return 0;
3560
3561
3562 irq = of_irq_get_byname(dev->of_node, "wakeup");
3563 if (irq <= 0) {
3564 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__);
3565 return 0;
3566 }
3567
3568 irq_set_status_flags(irq, IRQ_NOAUTOEN);
3569 ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler,
3570 0, "OOB Wake-on-BT", data);
3571 if (ret) {
3572 bt_dev_err(hdev, "%s: IRQ request failed", __func__);
3573 return ret;
3574 }
3575
3576 ret = device_init_wakeup(dev, true);
3577 if (ret) {
3578 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__);
3579 return ret;
3580 }
3581
3582 data->oob_wake_irq = irq;
3583 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq);
3584 return 0;
3585}
3586#endif
3587
3588static void btusb_check_needs_reset_resume(struct usb_interface *intf)
3589{
3590 if (dmi_check_system(btusb_needs_reset_resume_table))
3591 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
3592}
3593
3594static bool btusb_prevent_wake(struct hci_dev *hdev)
3595{
3596 struct btusb_data *data = hci_get_drvdata(hdev);
3597
3598 return !device_may_wakeup(&data->udev->dev);
3599}
3600
3601static int btusb_shutdown_qca(struct hci_dev *hdev)
3602{
3603 struct sk_buff *skb;
3604
3605 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
3606 if (IS_ERR(skb)) {
3607 bt_dev_err(hdev, "HCI reset during shutdown failed");
3608 return PTR_ERR(skb);
3609 }
3610 kfree_skb(skb);
3611
3612 return 0;
3613}
3614
3615static int btusb_probe(struct usb_interface *intf,
3616 const struct usb_device_id *id)
3617{
3618 struct usb_endpoint_descriptor *ep_desc;
3619 struct gpio_desc *reset_gpio;
3620 struct btusb_data *data;
3621 struct hci_dev *hdev;
3622 unsigned ifnum_base;
3623 int i, err, priv_size;
3624
3625 BT_DBG("intf %p id %p", intf, id);
3626
3627
3628 if (intf->cur_altsetting->desc.bInterfaceNumber != 0) {
3629 if (!(id->driver_info & BTUSB_IFNUM_2))
3630 return -ENODEV;
3631 if (intf->cur_altsetting->desc.bInterfaceNumber != 2)
3632 return -ENODEV;
3633 }
3634
3635 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber;
3636
3637 if (!id->driver_info) {
3638 const struct usb_device_id *match;
3639
3640 match = usb_match_id(intf, blacklist_table);
3641 if (match)
3642 id = match;
3643 }
3644
3645 if (id->driver_info == BTUSB_IGNORE)
3646 return -ENODEV;
3647
3648 if (id->driver_info & BTUSB_ATH3012) {
3649 struct usb_device *udev = interface_to_usbdev(intf);
3650
3651
3652
3653
3654 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 &&
3655 !btusb_qca_need_patch(udev))
3656 return -ENODEV;
3657 }
3658
3659 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
3660 if (!data)
3661 return -ENOMEM;
3662
3663 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
3664 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
3665
3666 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
3667 data->intr_ep = ep_desc;
3668 continue;
3669 }
3670
3671 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
3672 data->bulk_tx_ep = ep_desc;
3673 continue;
3674 }
3675
3676 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
3677 data->bulk_rx_ep = ep_desc;
3678 continue;
3679 }
3680 }
3681
3682 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
3683 return -ENODEV;
3684
3685 if (id->driver_info & BTUSB_AMP) {
3686 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
3687 data->cmdreq = 0x2b;
3688 } else {
3689 data->cmdreq_type = USB_TYPE_CLASS;
3690 data->cmdreq = 0x00;
3691 }
3692
3693 data->udev = interface_to_usbdev(intf);
3694 data->intf = intf;
3695
3696 INIT_WORK(&data->work, btusb_work);
3697 INIT_WORK(&data->waker, btusb_waker);
3698 init_usb_anchor(&data->deferred);
3699 init_usb_anchor(&data->tx_anchor);
3700 spin_lock_init(&data->txlock);
3701
3702 init_usb_anchor(&data->intr_anchor);
3703 init_usb_anchor(&data->bulk_anchor);
3704 init_usb_anchor(&data->isoc_anchor);
3705 init_usb_anchor(&data->diag_anchor);
3706 init_usb_anchor(&data->ctrl_anchor);
3707 spin_lock_init(&data->rxlock);
3708
3709 priv_size = 0;
3710
3711 data->recv_event = hci_recv_frame;
3712 data->recv_bulk = btusb_recv_bulk;
3713
3714 if (id->driver_info & BTUSB_INTEL_COMBINED) {
3715
3716 priv_size += sizeof(struct btintel_data);
3717
3718
3719 data->recv_event = btusb_recv_event_intel;
3720 data->recv_bulk = btusb_recv_bulk_intel;
3721 }
3722
3723 data->recv_acl = hci_recv_frame;
3724
3725 hdev = hci_alloc_dev_priv(priv_size);
3726 if (!hdev)
3727 return -ENOMEM;
3728
3729 hdev->bus = HCI_USB;
3730 hci_set_drvdata(hdev, data);
3731
3732 if (id->driver_info & BTUSB_AMP)
3733 hdev->dev_type = HCI_AMP;
3734 else
3735 hdev->dev_type = HCI_PRIMARY;
3736
3737 data->hdev = hdev;
3738
3739 SET_HCIDEV_DEV(hdev, &intf->dev);
3740
3741 reset_gpio = gpiod_get_optional(&data->udev->dev, "reset",
3742 GPIOD_OUT_LOW);
3743 if (IS_ERR(reset_gpio)) {
3744 err = PTR_ERR(reset_gpio);
3745 goto out_free_dev;
3746 } else if (reset_gpio) {
3747 data->reset_gpio = reset_gpio;
3748 }
3749
3750 hdev->open = btusb_open;
3751 hdev->close = btusb_close;
3752 hdev->flush = btusb_flush;
3753 hdev->send = btusb_send_frame;
3754 hdev->notify = btusb_notify;
3755 hdev->prevent_wake = btusb_prevent_wake;
3756
3757#ifdef CONFIG_PM
3758 err = btusb_config_oob_wake(hdev);
3759 if (err)
3760 goto out_free_dev;
3761
3762
3763 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) {
3764 err = marvell_config_oob_wake(hdev);
3765 if (err)
3766 goto out_free_dev;
3767 }
3768#endif
3769 if (id->driver_info & BTUSB_CW6622)
3770 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
3771
3772 if (id->driver_info & BTUSB_BCM2045)
3773 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
3774
3775 if (id->driver_info & BTUSB_BCM92035)
3776 hdev->setup = btusb_setup_bcm92035;
3777
3778 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
3779 (id->driver_info & BTUSB_BCM_PATCHRAM)) {
3780 hdev->manufacturer = 15;
3781 hdev->setup = btbcm_setup_patchram;
3782 hdev->set_diag = btusb_bcm_set_diag;
3783 hdev->set_bdaddr = btbcm_set_bdaddr;
3784
3785
3786 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
3787 }
3788
3789 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
3790 (id->driver_info & BTUSB_BCM_APPLE)) {
3791 hdev->manufacturer = 15;
3792 hdev->setup = btbcm_setup_apple;
3793 hdev->set_diag = btusb_bcm_set_diag;
3794
3795
3796 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
3797 }
3798
3799
3800 if (id->driver_info & BTUSB_INTEL_COMBINED) {
3801 err = btintel_configure_setup(hdev);
3802 if (err)
3803 goto out_free_dev;
3804
3805
3806 hdev->send = btusb_send_frame_intel;
3807 hdev->cmd_timeout = btusb_intel_cmd_timeout;
3808
3809 if (id->driver_info & BTUSB_INTEL_BROKEN_INITIAL_NCMD)
3810 btintel_set_flag(hdev, INTEL_BROKEN_INITIAL_NCMD);
3811 }
3812
3813 if (id->driver_info & BTUSB_MARVELL)
3814 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
3815
3816 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_MTK) &&
3817 (id->driver_info & BTUSB_MEDIATEK)) {
3818 hdev->setup = btusb_mtk_setup;
3819 hdev->shutdown = btusb_mtk_shutdown;
3820 hdev->manufacturer = 70;
3821 hdev->cmd_timeout = btusb_mtk_cmd_timeout;
3822 set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
3823 data->recv_acl = btusb_recv_acl_mtk;
3824 }
3825
3826 if (id->driver_info & BTUSB_SWAVE) {
3827 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
3828 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
3829 }
3830
3831 if (id->driver_info & BTUSB_INTEL_BOOT) {
3832 hdev->manufacturer = 2;
3833 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
3834 }
3835
3836 if (id->driver_info & BTUSB_ATH3012) {
3837 data->setup_on_usb = btusb_setup_qca;
3838 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
3839 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3840 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
3841 }
3842
3843 if (id->driver_info & BTUSB_QCA_ROME) {
3844 data->setup_on_usb = btusb_setup_qca;
3845 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
3846 hdev->cmd_timeout = btusb_qca_cmd_timeout;
3847 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3848 btusb_check_needs_reset_resume(intf);
3849 }
3850
3851 if (id->driver_info & BTUSB_QCA_WCN6855) {
3852 data->setup_on_usb = btusb_setup_qca;
3853 hdev->shutdown = btusb_shutdown_qca;
3854 hdev->set_bdaddr = btusb_set_bdaddr_wcn6855;
3855 hdev->cmd_timeout = btusb_qca_cmd_timeout;
3856 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3857 hci_set_msft_opcode(hdev, 0xFD70);
3858 }
3859
3860 if (id->driver_info & BTUSB_AMP) {
3861
3862 data->isoc = NULL;
3863 } else {
3864
3865 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1);
3866 data->isoc_ifnum = ifnum_base + 1;
3867 }
3868
3869 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_RTL) &&
3870 (id->driver_info & BTUSB_REALTEK)) {
3871 hdev->setup = btrtl_setup_realtek;
3872 hdev->shutdown = btrtl_shutdown_realtek;
3873 hdev->cmd_timeout = btusb_rtl_cmd_timeout;
3874
3875
3876 set_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags);
3877 set_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags);
3878 }
3879
3880 if (!reset)
3881 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3882
3883 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
3884 if (!disable_scofix)
3885 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
3886 }
3887
3888 if (id->driver_info & BTUSB_BROKEN_ISOC)
3889 data->isoc = NULL;
3890
3891 if (id->driver_info & BTUSB_WIDEBAND_SPEECH)
3892 set_bit(HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED, &hdev->quirks);
3893
3894 if (id->driver_info & BTUSB_VALID_LE_STATES)
3895 set_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks);
3896
3897 if (id->driver_info & BTUSB_DIGIANSWER) {
3898 data->cmdreq_type = USB_TYPE_VENDOR;
3899 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3900 }
3901
3902 if (id->driver_info & BTUSB_CSR) {
3903 struct usb_device *udev = data->udev;
3904 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
3905
3906
3907 if (bcdDevice < 0x117)
3908 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3909
3910
3911 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3912
3913
3914 if (le16_to_cpu(udev->descriptor.idVendor) == 0x0a12 &&
3915 le16_to_cpu(udev->descriptor.idProduct) == 0x0001)
3916 hdev->setup = btusb_setup_csr;
3917 }
3918
3919 if (id->driver_info & BTUSB_SNIFFER) {
3920 struct usb_device *udev = data->udev;
3921
3922
3923 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
3924 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
3925 }
3926
3927 if (id->driver_info & BTUSB_INTEL_BOOT) {
3928
3929
3930
3931 err = usb_set_interface(data->udev, 0, 0);
3932 if (err < 0) {
3933 BT_ERR("failed to set interface 0, alt 0 %d", err);
3934 goto out_free_dev;
3935 }
3936 }
3937
3938 if (data->isoc) {
3939 err = usb_driver_claim_interface(&btusb_driver,
3940 data->isoc, data);
3941 if (err < 0)
3942 goto out_free_dev;
3943 }
3944
3945 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && data->diag) {
3946 if (!usb_driver_claim_interface(&btusb_driver,
3947 data->diag, data))
3948 __set_diag_interface(hdev);
3949 else
3950 data->diag = NULL;
3951 }
3952
3953 if (enable_autosuspend)
3954 usb_enable_autosuspend(data->udev);
3955
3956 err = hci_register_dev(hdev);
3957 if (err < 0)
3958 goto out_free_dev;
3959
3960 usb_set_intfdata(intf, data);
3961
3962 return 0;
3963
3964out_free_dev:
3965 if (data->reset_gpio)
3966 gpiod_put(data->reset_gpio);
3967 hci_free_dev(hdev);
3968 return err;
3969}
3970
3971static void btusb_disconnect(struct usb_interface *intf)
3972{
3973 struct btusb_data *data = usb_get_intfdata(intf);
3974 struct hci_dev *hdev;
3975
3976 BT_DBG("intf %p", intf);
3977
3978 if (!data)
3979 return;
3980
3981 hdev = data->hdev;
3982 usb_set_intfdata(data->intf, NULL);
3983
3984 if (data->isoc)
3985 usb_set_intfdata(data->isoc, NULL);
3986
3987 if (data->diag)
3988 usb_set_intfdata(data->diag, NULL);
3989
3990 hci_unregister_dev(hdev);
3991
3992 if (intf == data->intf) {
3993 if (data->isoc)
3994 usb_driver_release_interface(&btusb_driver, data->isoc);
3995 if (data->diag)
3996 usb_driver_release_interface(&btusb_driver, data->diag);
3997 } else if (intf == data->isoc) {
3998 if (data->diag)
3999 usb_driver_release_interface(&btusb_driver, data->diag);
4000 usb_driver_release_interface(&btusb_driver, data->intf);
4001 } else if (intf == data->diag) {
4002 usb_driver_release_interface(&btusb_driver, data->intf);
4003 if (data->isoc)
4004 usb_driver_release_interface(&btusb_driver, data->isoc);
4005 }
4006
4007 if (data->oob_wake_irq)
4008 device_init_wakeup(&data->udev->dev, false);
4009
4010 if (data->reset_gpio)
4011 gpiod_put(data->reset_gpio);
4012
4013 hci_free_dev(hdev);
4014}
4015
4016#ifdef CONFIG_PM
4017static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
4018{
4019 struct btusb_data *data = usb_get_intfdata(intf);
4020
4021 BT_DBG("intf %p", intf);
4022
4023 if (data->suspend_count++)
4024 return 0;
4025
4026 spin_lock_irq(&data->txlock);
4027 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
4028 set_bit(BTUSB_SUSPENDING, &data->flags);
4029 spin_unlock_irq(&data->txlock);
4030 } else {
4031 spin_unlock_irq(&data->txlock);
4032 data->suspend_count--;
4033 return -EBUSY;
4034 }
4035
4036 cancel_work_sync(&data->work);
4037
4038 btusb_stop_traffic(data);
4039 usb_kill_anchored_urbs(&data->tx_anchor);
4040
4041 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) {
4042 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
4043 enable_irq_wake(data->oob_wake_irq);
4044 enable_irq(data->oob_wake_irq);
4045 }
4046
4047
4048
4049
4050
4051
4052 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) {
4053 if (PMSG_IS_AUTO(message) &&
4054 device_can_wakeup(&data->udev->dev))
4055 data->udev->do_remote_wakeup = 1;
4056 else if (!PMSG_IS_AUTO(message) &&
4057 !device_may_wakeup(&data->udev->dev)) {
4058 data->udev->do_remote_wakeup = 0;
4059 data->udev->reset_resume = 1;
4060 }
4061 }
4062
4063 return 0;
4064}
4065
4066static void play_deferred(struct btusb_data *data)
4067{
4068 struct urb *urb;
4069 int err;
4070
4071 while ((urb = usb_get_from_anchor(&data->deferred))) {
4072 usb_anchor_urb(urb, &data->tx_anchor);
4073
4074 err = usb_submit_urb(urb, GFP_ATOMIC);
4075 if (err < 0) {
4076 if (err != -EPERM && err != -ENODEV)
4077 BT_ERR("%s urb %p submission failed (%d)",
4078 data->hdev->name, urb, -err);
4079 kfree(urb->setup_packet);
4080 usb_unanchor_urb(urb);
4081 usb_free_urb(urb);
4082 break;
4083 }
4084
4085 data->tx_in_flight++;
4086 usb_free_urb(urb);
4087 }
4088
4089
4090 while ((urb = usb_get_from_anchor(&data->deferred))) {
4091 kfree(urb->setup_packet);
4092 usb_free_urb(urb);
4093 }
4094}
4095
4096static int btusb_resume(struct usb_interface *intf)
4097{
4098 struct btusb_data *data = usb_get_intfdata(intf);
4099 struct hci_dev *hdev = data->hdev;
4100 int err = 0;
4101
4102 BT_DBG("intf %p", intf);
4103
4104 if (--data->suspend_count)
4105 return 0;
4106
4107
4108 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
4109 disable_irq(data->oob_wake_irq);
4110 disable_irq_wake(data->oob_wake_irq);
4111 }
4112
4113 if (!test_bit(HCI_RUNNING, &hdev->flags))
4114 goto done;
4115
4116 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
4117 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
4118 if (err < 0) {
4119 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
4120 goto failed;
4121 }
4122 }
4123
4124 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
4125 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
4126 if (err < 0) {
4127 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
4128 goto failed;
4129 }
4130
4131 btusb_submit_bulk_urb(hdev, GFP_NOIO);
4132 }
4133
4134 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
4135 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
4136 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
4137 else
4138 btusb_submit_isoc_urb(hdev, GFP_NOIO);
4139 }
4140
4141 spin_lock_irq(&data->txlock);
4142 play_deferred(data);
4143 clear_bit(BTUSB_SUSPENDING, &data->flags);
4144 spin_unlock_irq(&data->txlock);
4145 schedule_work(&data->work);
4146
4147 return 0;
4148
4149failed:
4150 usb_scuttle_anchored_urbs(&data->deferred);
4151done:
4152 spin_lock_irq(&data->txlock);
4153 clear_bit(BTUSB_SUSPENDING, &data->flags);
4154 spin_unlock_irq(&data->txlock);
4155
4156 return err;
4157}
4158#endif
4159
4160static struct usb_driver btusb_driver = {
4161 .name = "btusb",
4162 .probe = btusb_probe,
4163 .disconnect = btusb_disconnect,
4164#ifdef CONFIG_PM
4165 .suspend = btusb_suspend,
4166 .resume = btusb_resume,
4167#endif
4168 .id_table = btusb_table,
4169 .supports_autosuspend = 1,
4170 .disable_hub_initiated_lpm = 1,
4171};
4172
4173module_usb_driver(btusb_driver);
4174
4175module_param(disable_scofix, bool, 0644);
4176MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
4177
4178module_param(force_scofix, bool, 0644);
4179MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
4180
4181module_param(enable_autosuspend, bool, 0644);
4182MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default");
4183
4184module_param(reset, bool, 0644);
4185MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
4186
4187MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
4188MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
4189MODULE_VERSION(VERSION);
4190MODULE_LICENSE("GPL");
4191