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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 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_INTEL_NEW 0x2000
52#define BTUSB_AMP 0x4000
53#define BTUSB_QCA_ROME 0x8000
54#define BTUSB_BCM_APPLE 0x10000
55#define BTUSB_REALTEK 0x20000
56#define BTUSB_BCM2045 0x40000
57#define BTUSB_IFNUM_2 0x80000
58#define BTUSB_CW6622 0x100000
59#define BTUSB_MEDIATEK 0x200000
60
61static const struct usb_device_id btusb_table[] = {
62
63 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
64
65
66 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP },
67
68
69 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) },
70
71
72 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01),
73 .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 },
74
75
76 { USB_DEVICE(0x0e8d, 0x763f) },
77
78
79 { USB_DEVICE(0x0a5c, 0x21e1) },
80
81
82 { USB_DEVICE(0x05ac, 0x8213) },
83
84
85 { USB_DEVICE(0x05ac, 0x8215) },
86
87
88 { USB_DEVICE(0x05ac, 0x8218) },
89
90
91 { USB_DEVICE(0x05ac, 0x821b) },
92
93
94 { USB_DEVICE(0x05ac, 0x821f) },
95
96
97 { USB_DEVICE(0x05ac, 0x821a) },
98
99
100 { USB_DEVICE(0x05ac, 0x8281) },
101
102
103 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE },
104
105
106 { USB_DEVICE(0x04bf, 0x030a) },
107
108
109 { USB_DEVICE(0x044e, 0x3001) },
110 { USB_DEVICE(0x044e, 0x3002) },
111
112
113 { USB_DEVICE(0x0bdb, 0x1002) },
114
115
116 { USB_DEVICE(0x0c10, 0x0000) },
117
118
119 { USB_DEVICE(0x413c, 0x8197) },
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 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME },
257 { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME },
258 { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME },
259 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME },
260 { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME },
261 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME },
262 { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME },
263 { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME },
264 { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME },
265 { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME },
266 { USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME },
267 { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME },
268 { USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME },
269 { USB_DEVICE(0x13d3, 0x3491), .driver_info = BTUSB_QCA_ROME },
270 { USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME },
271 { USB_DEVICE(0x13d3, 0x3501), .driver_info = BTUSB_QCA_ROME },
272
273
274 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
275 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
276 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
277
278
279 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
280 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
281
282
283 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
284 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
285
286
287 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
288
289
290 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
291
292
293 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
294 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
295
296
297 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
298 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
299
300
301 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
302
303
304 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
305
306
307 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
308 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
309
310
311 { USB_DEVICE(0x0e5e, 0x6622),
312 .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622},
313
314
315 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE },
316
317
318 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
319 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
320
321
322 { USB_DEVICE(0x0a12, 0x0002),
323 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
324
325
326 { USB_DEVICE(0x16d3, 0x0002),
327 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
328
329
330 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
331 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
332 { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL },
333
334
335 { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_NEW },
336 { USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_NEW },
337 { USB_DEVICE(0x8087, 0x0029), .driver_info = BTUSB_INTEL_NEW },
338 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
339 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
340 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL },
341 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_NEW },
342 { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL },
343 { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_NEW },
344
345
346 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
347 .driver_info = BTUSB_IGNORE },
348
349
350 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
351 .driver_info = BTUSB_REALTEK },
352
353
354 { USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01),
355 .driver_info = BTUSB_MEDIATEK },
356
357
358 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
359 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
360
361
362 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
363 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
364 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
365 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
366 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
367 { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK },
368
369
370 { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK },
371
372
373 { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK },
374 { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK },
375
376
377 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
378 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
379 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
380 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
381 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
382
383
384 { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK },
385 { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK },
386
387
388 { USB_DEVICE(0x04ca, 0x4005), .driver_info = BTUSB_REALTEK },
389
390
391 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE },
392
393 { }
394};
395
396
397
398
399
400static const struct dmi_system_id btusb_needs_reset_resume_table[] = {
401 {
402
403 .matches = {
404 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
405 DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"),
406 },
407 },
408 {
409
410 .matches = {
411 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
412 DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"),
413 },
414 },
415 {
416
417 .matches = {
418 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
419 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"),
420 },
421 },
422 {}
423};
424
425#define BTUSB_MAX_ISOC_FRAMES 10
426
427#define BTUSB_INTR_RUNNING 0
428#define BTUSB_BULK_RUNNING 1
429#define BTUSB_ISOC_RUNNING 2
430#define BTUSB_SUSPENDING 3
431#define BTUSB_DID_ISO_RESUME 4
432#define BTUSB_BOOTLOADER 5
433#define BTUSB_DOWNLOADING 6
434#define BTUSB_FIRMWARE_LOADED 7
435#define BTUSB_FIRMWARE_FAILED 8
436#define BTUSB_BOOTING 9
437#define BTUSB_DIAG_RUNNING 10
438#define BTUSB_OOB_WAKE_ENABLED 11
439#define BTUSB_HW_RESET_ACTIVE 12
440#define BTUSB_TX_WAIT_VND_EVT 13
441
442struct btusb_data {
443 struct hci_dev *hdev;
444 struct usb_device *udev;
445 struct usb_interface *intf;
446 struct usb_interface *isoc;
447 struct usb_interface *diag;
448 unsigned isoc_ifnum;
449
450 unsigned long flags;
451
452 struct work_struct work;
453 struct work_struct waker;
454
455 struct usb_anchor deferred;
456 struct usb_anchor tx_anchor;
457 int tx_in_flight;
458 spinlock_t txlock;
459
460 struct usb_anchor intr_anchor;
461 struct usb_anchor bulk_anchor;
462 struct usb_anchor isoc_anchor;
463 struct usb_anchor diag_anchor;
464 struct usb_anchor ctrl_anchor;
465 spinlock_t rxlock;
466
467 struct sk_buff *evt_skb;
468 struct sk_buff *acl_skb;
469 struct sk_buff *sco_skb;
470
471 struct usb_endpoint_descriptor *intr_ep;
472 struct usb_endpoint_descriptor *bulk_tx_ep;
473 struct usb_endpoint_descriptor *bulk_rx_ep;
474 struct usb_endpoint_descriptor *isoc_tx_ep;
475 struct usb_endpoint_descriptor *isoc_rx_ep;
476 struct usb_endpoint_descriptor *diag_tx_ep;
477 struct usb_endpoint_descriptor *diag_rx_ep;
478
479 struct gpio_desc *reset_gpio;
480
481 __u8 cmdreq_type;
482 __u8 cmdreq;
483
484 unsigned int sco_num;
485 int isoc_altsetting;
486 int suspend_count;
487
488 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
489 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
490
491 int (*setup_on_usb)(struct hci_dev *hdev);
492
493 int oob_wake_irq;
494 unsigned cmd_timeout_cnt;
495};
496
497
498static void btusb_intel_cmd_timeout(struct hci_dev *hdev)
499{
500 struct btusb_data *data = hci_get_drvdata(hdev);
501 struct gpio_desc *reset_gpio = data->reset_gpio;
502
503 if (++data->cmd_timeout_cnt < 5)
504 return;
505
506 if (!reset_gpio) {
507 bt_dev_err(hdev, "No way to reset. Ignoring and continuing");
508 return;
509 }
510
511
512
513
514
515
516
517
518 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
519 bt_dev_err(hdev, "last reset failed? Not resetting again");
520 return;
521 }
522
523 bt_dev_err(hdev, "Initiating HW reset via gpio");
524 gpiod_set_value_cansleep(reset_gpio, 1);
525 msleep(100);
526 gpiod_set_value_cansleep(reset_gpio, 0);
527}
528
529static inline void btusb_free_frags(struct btusb_data *data)
530{
531 unsigned long flags;
532
533 spin_lock_irqsave(&data->rxlock, flags);
534
535 kfree_skb(data->evt_skb);
536 data->evt_skb = NULL;
537
538 kfree_skb(data->acl_skb);
539 data->acl_skb = NULL;
540
541 kfree_skb(data->sco_skb);
542 data->sco_skb = NULL;
543
544 spin_unlock_irqrestore(&data->rxlock, flags);
545}
546
547static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
548{
549 struct sk_buff *skb;
550 unsigned long flags;
551 int err = 0;
552
553 spin_lock_irqsave(&data->rxlock, flags);
554 skb = data->evt_skb;
555
556 while (count) {
557 int len;
558
559 if (!skb) {
560 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
561 if (!skb) {
562 err = -ENOMEM;
563 break;
564 }
565
566 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
567 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE;
568 }
569
570 len = min_t(uint, hci_skb_expect(skb), count);
571 skb_put_data(skb, buffer, len);
572
573 count -= len;
574 buffer += len;
575 hci_skb_expect(skb) -= len;
576
577 if (skb->len == HCI_EVENT_HDR_SIZE) {
578
579 hci_skb_expect(skb) = hci_event_hdr(skb)->plen;
580
581 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
582 kfree_skb(skb);
583 skb = NULL;
584
585 err = -EILSEQ;
586 break;
587 }
588 }
589
590 if (!hci_skb_expect(skb)) {
591
592 data->recv_event(data->hdev, skb);
593 skb = NULL;
594 }
595 }
596
597 data->evt_skb = skb;
598 spin_unlock_irqrestore(&data->rxlock, flags);
599
600 return err;
601}
602
603static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
604{
605 struct sk_buff *skb;
606 unsigned long flags;
607 int err = 0;
608
609 spin_lock_irqsave(&data->rxlock, flags);
610 skb = data->acl_skb;
611
612 while (count) {
613 int len;
614
615 if (!skb) {
616 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
617 if (!skb) {
618 err = -ENOMEM;
619 break;
620 }
621
622 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT;
623 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE;
624 }
625
626 len = min_t(uint, hci_skb_expect(skb), count);
627 skb_put_data(skb, buffer, len);
628
629 count -= len;
630 buffer += len;
631 hci_skb_expect(skb) -= len;
632
633 if (skb->len == HCI_ACL_HDR_SIZE) {
634 __le16 dlen = hci_acl_hdr(skb)->dlen;
635
636
637 hci_skb_expect(skb) = __le16_to_cpu(dlen);
638
639 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
640 kfree_skb(skb);
641 skb = NULL;
642
643 err = -EILSEQ;
644 break;
645 }
646 }
647
648 if (!hci_skb_expect(skb)) {
649
650 hci_recv_frame(data->hdev, skb);
651 skb = NULL;
652 }
653 }
654
655 data->acl_skb = skb;
656 spin_unlock_irqrestore(&data->rxlock, flags);
657
658 return err;
659}
660
661static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
662{
663 struct sk_buff *skb;
664 unsigned long flags;
665 int err = 0;
666
667 spin_lock_irqsave(&data->rxlock, flags);
668 skb = data->sco_skb;
669
670 while (count) {
671 int len;
672
673 if (!skb) {
674 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
675 if (!skb) {
676 err = -ENOMEM;
677 break;
678 }
679
680 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT;
681 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE;
682 }
683
684 len = min_t(uint, hci_skb_expect(skb), count);
685 skb_put_data(skb, buffer, len);
686
687 count -= len;
688 buffer += len;
689 hci_skb_expect(skb) -= len;
690
691 if (skb->len == HCI_SCO_HDR_SIZE) {
692
693 hci_skb_expect(skb) = hci_sco_hdr(skb)->dlen;
694
695 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
696 kfree_skb(skb);
697 skb = NULL;
698
699 err = -EILSEQ;
700 break;
701 }
702 }
703
704 if (!hci_skb_expect(skb)) {
705
706 hci_recv_frame(data->hdev, skb);
707 skb = NULL;
708 }
709 }
710
711 data->sco_skb = skb;
712 spin_unlock_irqrestore(&data->rxlock, flags);
713
714 return err;
715}
716
717static void btusb_intr_complete(struct urb *urb)
718{
719 struct hci_dev *hdev = urb->context;
720 struct btusb_data *data = hci_get_drvdata(hdev);
721 int err;
722
723 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
724 urb->actual_length);
725
726 if (!test_bit(HCI_RUNNING, &hdev->flags))
727 return;
728
729 if (urb->status == 0) {
730 hdev->stat.byte_rx += urb->actual_length;
731
732 if (btusb_recv_intr(data, urb->transfer_buffer,
733 urb->actual_length) < 0) {
734 bt_dev_err(hdev, "corrupted event packet");
735 hdev->stat.err_rx++;
736 }
737 } else if (urb->status == -ENOENT) {
738
739 return;
740 }
741
742 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
743 return;
744
745 usb_mark_last_busy(data->udev);
746 usb_anchor_urb(urb, &data->intr_anchor);
747
748 err = usb_submit_urb(urb, GFP_ATOMIC);
749 if (err < 0) {
750
751
752
753 if (err != -EPERM && err != -ENODEV)
754 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
755 urb, -err);
756 usb_unanchor_urb(urb);
757 }
758}
759
760static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
761{
762 struct btusb_data *data = hci_get_drvdata(hdev);
763 struct urb *urb;
764 unsigned char *buf;
765 unsigned int pipe;
766 int err, size;
767
768 BT_DBG("%s", hdev->name);
769
770 if (!data->intr_ep)
771 return -ENODEV;
772
773 urb = usb_alloc_urb(0, mem_flags);
774 if (!urb)
775 return -ENOMEM;
776
777 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
778
779 buf = kmalloc(size, mem_flags);
780 if (!buf) {
781 usb_free_urb(urb);
782 return -ENOMEM;
783 }
784
785 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
786
787 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
788 btusb_intr_complete, hdev, data->intr_ep->bInterval);
789
790 urb->transfer_flags |= URB_FREE_BUFFER;
791
792 usb_anchor_urb(urb, &data->intr_anchor);
793
794 err = usb_submit_urb(urb, mem_flags);
795 if (err < 0) {
796 if (err != -EPERM && err != -ENODEV)
797 bt_dev_err(hdev, "urb %p submission failed (%d)",
798 urb, -err);
799 usb_unanchor_urb(urb);
800 }
801
802 usb_free_urb(urb);
803
804 return err;
805}
806
807static void btusb_bulk_complete(struct urb *urb)
808{
809 struct hci_dev *hdev = urb->context;
810 struct btusb_data *data = hci_get_drvdata(hdev);
811 int err;
812
813 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
814 urb->actual_length);
815
816 if (!test_bit(HCI_RUNNING, &hdev->flags))
817 return;
818
819 if (urb->status == 0) {
820 hdev->stat.byte_rx += urb->actual_length;
821
822 if (data->recv_bulk(data, urb->transfer_buffer,
823 urb->actual_length) < 0) {
824 bt_dev_err(hdev, "corrupted ACL packet");
825 hdev->stat.err_rx++;
826 }
827 } else if (urb->status == -ENOENT) {
828
829 return;
830 }
831
832 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
833 return;
834
835 usb_anchor_urb(urb, &data->bulk_anchor);
836 usb_mark_last_busy(data->udev);
837
838 err = usb_submit_urb(urb, GFP_ATOMIC);
839 if (err < 0) {
840
841
842
843 if (err != -EPERM && err != -ENODEV)
844 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
845 urb, -err);
846 usb_unanchor_urb(urb);
847 }
848}
849
850static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
851{
852 struct btusb_data *data = hci_get_drvdata(hdev);
853 struct urb *urb;
854 unsigned char *buf;
855 unsigned int pipe;
856 int err, size = HCI_MAX_FRAME_SIZE;
857
858 BT_DBG("%s", hdev->name);
859
860 if (!data->bulk_rx_ep)
861 return -ENODEV;
862
863 urb = usb_alloc_urb(0, mem_flags);
864 if (!urb)
865 return -ENOMEM;
866
867 buf = kmalloc(size, mem_flags);
868 if (!buf) {
869 usb_free_urb(urb);
870 return -ENOMEM;
871 }
872
873 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
874
875 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
876 btusb_bulk_complete, hdev);
877
878 urb->transfer_flags |= URB_FREE_BUFFER;
879
880 usb_mark_last_busy(data->udev);
881 usb_anchor_urb(urb, &data->bulk_anchor);
882
883 err = usb_submit_urb(urb, mem_flags);
884 if (err < 0) {
885 if (err != -EPERM && err != -ENODEV)
886 bt_dev_err(hdev, "urb %p submission failed (%d)",
887 urb, -err);
888 usb_unanchor_urb(urb);
889 }
890
891 usb_free_urb(urb);
892
893 return err;
894}
895
896static void btusb_isoc_complete(struct urb *urb)
897{
898 struct hci_dev *hdev = urb->context;
899 struct btusb_data *data = hci_get_drvdata(hdev);
900 int i, err;
901
902 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
903 urb->actual_length);
904
905 if (!test_bit(HCI_RUNNING, &hdev->flags))
906 return;
907
908 if (urb->status == 0) {
909 for (i = 0; i < urb->number_of_packets; i++) {
910 unsigned int offset = urb->iso_frame_desc[i].offset;
911 unsigned int length = urb->iso_frame_desc[i].actual_length;
912
913 if (urb->iso_frame_desc[i].status)
914 continue;
915
916 hdev->stat.byte_rx += length;
917
918 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
919 length) < 0) {
920 bt_dev_err(hdev, "corrupted SCO packet");
921 hdev->stat.err_rx++;
922 }
923 }
924 } else if (urb->status == -ENOENT) {
925
926 return;
927 }
928
929 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
930 return;
931
932 usb_anchor_urb(urb, &data->isoc_anchor);
933
934 err = usb_submit_urb(urb, GFP_ATOMIC);
935 if (err < 0) {
936
937
938
939 if (err != -EPERM && err != -ENODEV)
940 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
941 urb, -err);
942 usb_unanchor_urb(urb);
943 }
944}
945
946static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
947{
948 int i, offset = 0;
949
950 BT_DBG("len %d mtu %d", len, mtu);
951
952 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
953 i++, offset += mtu, len -= mtu) {
954 urb->iso_frame_desc[i].offset = offset;
955 urb->iso_frame_desc[i].length = mtu;
956 }
957
958 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
959 urb->iso_frame_desc[i].offset = offset;
960 urb->iso_frame_desc[i].length = len;
961 i++;
962 }
963
964 urb->number_of_packets = i;
965}
966
967static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
968{
969 struct btusb_data *data = hci_get_drvdata(hdev);
970 struct urb *urb;
971 unsigned char *buf;
972 unsigned int pipe;
973 int err, size;
974
975 BT_DBG("%s", hdev->name);
976
977 if (!data->isoc_rx_ep)
978 return -ENODEV;
979
980 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
981 if (!urb)
982 return -ENOMEM;
983
984 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
985 BTUSB_MAX_ISOC_FRAMES;
986
987 buf = kmalloc(size, mem_flags);
988 if (!buf) {
989 usb_free_urb(urb);
990 return -ENOMEM;
991 }
992
993 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
994
995 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
996 hdev, data->isoc_rx_ep->bInterval);
997
998 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
999
1000 __fill_isoc_descriptor(urb, size,
1001 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
1002
1003 usb_anchor_urb(urb, &data->isoc_anchor);
1004
1005 err = usb_submit_urb(urb, mem_flags);
1006 if (err < 0) {
1007 if (err != -EPERM && err != -ENODEV)
1008 bt_dev_err(hdev, "urb %p submission failed (%d)",
1009 urb, -err);
1010 usb_unanchor_urb(urb);
1011 }
1012
1013 usb_free_urb(urb);
1014
1015 return err;
1016}
1017
1018static void btusb_diag_complete(struct urb *urb)
1019{
1020 struct hci_dev *hdev = urb->context;
1021 struct btusb_data *data = hci_get_drvdata(hdev);
1022 int err;
1023
1024 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1025 urb->actual_length);
1026
1027 if (urb->status == 0) {
1028 struct sk_buff *skb;
1029
1030 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC);
1031 if (skb) {
1032 skb_put_data(skb, urb->transfer_buffer,
1033 urb->actual_length);
1034 hci_recv_diag(hdev, skb);
1035 }
1036 } else if (urb->status == -ENOENT) {
1037
1038 return;
1039 }
1040
1041 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags))
1042 return;
1043
1044 usb_anchor_urb(urb, &data->diag_anchor);
1045 usb_mark_last_busy(data->udev);
1046
1047 err = usb_submit_urb(urb, GFP_ATOMIC);
1048 if (err < 0) {
1049
1050
1051
1052 if (err != -EPERM && err != -ENODEV)
1053 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1054 urb, -err);
1055 usb_unanchor_urb(urb);
1056 }
1057}
1058
1059static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags)
1060{
1061 struct btusb_data *data = hci_get_drvdata(hdev);
1062 struct urb *urb;
1063 unsigned char *buf;
1064 unsigned int pipe;
1065 int err, size = HCI_MAX_FRAME_SIZE;
1066
1067 BT_DBG("%s", hdev->name);
1068
1069 if (!data->diag_rx_ep)
1070 return -ENODEV;
1071
1072 urb = usb_alloc_urb(0, mem_flags);
1073 if (!urb)
1074 return -ENOMEM;
1075
1076 buf = kmalloc(size, mem_flags);
1077 if (!buf) {
1078 usb_free_urb(urb);
1079 return -ENOMEM;
1080 }
1081
1082 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress);
1083
1084 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1085 btusb_diag_complete, hdev);
1086
1087 urb->transfer_flags |= URB_FREE_BUFFER;
1088
1089 usb_mark_last_busy(data->udev);
1090 usb_anchor_urb(urb, &data->diag_anchor);
1091
1092 err = usb_submit_urb(urb, mem_flags);
1093 if (err < 0) {
1094 if (err != -EPERM && err != -ENODEV)
1095 bt_dev_err(hdev, "urb %p submission failed (%d)",
1096 urb, -err);
1097 usb_unanchor_urb(urb);
1098 }
1099
1100 usb_free_urb(urb);
1101
1102 return err;
1103}
1104
1105static void btusb_tx_complete(struct urb *urb)
1106{
1107 struct sk_buff *skb = urb->context;
1108 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1109 struct btusb_data *data = hci_get_drvdata(hdev);
1110 unsigned long flags;
1111
1112 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1113 urb->actual_length);
1114
1115 if (!test_bit(HCI_RUNNING, &hdev->flags))
1116 goto done;
1117
1118 if (!urb->status)
1119 hdev->stat.byte_tx += urb->transfer_buffer_length;
1120 else
1121 hdev->stat.err_tx++;
1122
1123done:
1124 spin_lock_irqsave(&data->txlock, flags);
1125 data->tx_in_flight--;
1126 spin_unlock_irqrestore(&data->txlock, flags);
1127
1128 kfree(urb->setup_packet);
1129
1130 kfree_skb(skb);
1131}
1132
1133static void btusb_isoc_tx_complete(struct urb *urb)
1134{
1135 struct sk_buff *skb = urb->context;
1136 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1137
1138 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1139 urb->actual_length);
1140
1141 if (!test_bit(HCI_RUNNING, &hdev->flags))
1142 goto done;
1143
1144 if (!urb->status)
1145 hdev->stat.byte_tx += urb->transfer_buffer_length;
1146 else
1147 hdev->stat.err_tx++;
1148
1149done:
1150 kfree(urb->setup_packet);
1151
1152 kfree_skb(skb);
1153}
1154
1155static int btusb_open(struct hci_dev *hdev)
1156{
1157 struct btusb_data *data = hci_get_drvdata(hdev);
1158 int err;
1159
1160 BT_DBG("%s", hdev->name);
1161
1162 err = usb_autopm_get_interface(data->intf);
1163 if (err < 0)
1164 return err;
1165
1166
1167
1168
1169 if (data->setup_on_usb) {
1170 err = data->setup_on_usb(hdev);
1171 if (err < 0)
1172 return err;
1173 }
1174
1175 data->intf->needs_remote_wakeup = 1;
1176
1177 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
1178 goto done;
1179
1180 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
1181 if (err < 0)
1182 goto failed;
1183
1184 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1185 if (err < 0) {
1186 usb_kill_anchored_urbs(&data->intr_anchor);
1187 goto failed;
1188 }
1189
1190 set_bit(BTUSB_BULK_RUNNING, &data->flags);
1191 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1192
1193 if (data->diag) {
1194 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL))
1195 set_bit(BTUSB_DIAG_RUNNING, &data->flags);
1196 }
1197
1198done:
1199 usb_autopm_put_interface(data->intf);
1200 return 0;
1201
1202failed:
1203 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1204 usb_autopm_put_interface(data->intf);
1205 return err;
1206}
1207
1208static void btusb_stop_traffic(struct btusb_data *data)
1209{
1210 usb_kill_anchored_urbs(&data->intr_anchor);
1211 usb_kill_anchored_urbs(&data->bulk_anchor);
1212 usb_kill_anchored_urbs(&data->isoc_anchor);
1213 usb_kill_anchored_urbs(&data->diag_anchor);
1214 usb_kill_anchored_urbs(&data->ctrl_anchor);
1215}
1216
1217static int btusb_close(struct hci_dev *hdev)
1218{
1219 struct btusb_data *data = hci_get_drvdata(hdev);
1220 int err;
1221
1222 BT_DBG("%s", hdev->name);
1223
1224 cancel_work_sync(&data->work);
1225 cancel_work_sync(&data->waker);
1226
1227 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1228 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1229 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1230 clear_bit(BTUSB_DIAG_RUNNING, &data->flags);
1231
1232 btusb_stop_traffic(data);
1233 btusb_free_frags(data);
1234
1235 err = usb_autopm_get_interface(data->intf);
1236 if (err < 0)
1237 goto failed;
1238
1239 data->intf->needs_remote_wakeup = 0;
1240 usb_autopm_put_interface(data->intf);
1241
1242failed:
1243 usb_scuttle_anchored_urbs(&data->deferred);
1244 return 0;
1245}
1246
1247static int btusb_flush(struct hci_dev *hdev)
1248{
1249 struct btusb_data *data = hci_get_drvdata(hdev);
1250
1251 BT_DBG("%s", hdev->name);
1252
1253 usb_kill_anchored_urbs(&data->tx_anchor);
1254 btusb_free_frags(data);
1255
1256 return 0;
1257}
1258
1259static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
1260{
1261 struct btusb_data *data = hci_get_drvdata(hdev);
1262 struct usb_ctrlrequest *dr;
1263 struct urb *urb;
1264 unsigned int pipe;
1265
1266 urb = usb_alloc_urb(0, GFP_KERNEL);
1267 if (!urb)
1268 return ERR_PTR(-ENOMEM);
1269
1270 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
1271 if (!dr) {
1272 usb_free_urb(urb);
1273 return ERR_PTR(-ENOMEM);
1274 }
1275
1276 dr->bRequestType = data->cmdreq_type;
1277 dr->bRequest = data->cmdreq;
1278 dr->wIndex = 0;
1279 dr->wValue = 0;
1280 dr->wLength = __cpu_to_le16(skb->len);
1281
1282 pipe = usb_sndctrlpipe(data->udev, 0x00);
1283
1284 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
1285 skb->data, skb->len, btusb_tx_complete, skb);
1286
1287 skb->dev = (void *)hdev;
1288
1289 return urb;
1290}
1291
1292static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
1293{
1294 struct btusb_data *data = hci_get_drvdata(hdev);
1295 struct urb *urb;
1296 unsigned int pipe;
1297
1298 if (!data->bulk_tx_ep)
1299 return ERR_PTR(-ENODEV);
1300
1301 urb = usb_alloc_urb(0, GFP_KERNEL);
1302 if (!urb)
1303 return ERR_PTR(-ENOMEM);
1304
1305 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
1306
1307 usb_fill_bulk_urb(urb, data->udev, pipe,
1308 skb->data, skb->len, btusb_tx_complete, skb);
1309
1310 skb->dev = (void *)hdev;
1311
1312 return urb;
1313}
1314
1315static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
1316{
1317 struct btusb_data *data = hci_get_drvdata(hdev);
1318 struct urb *urb;
1319 unsigned int pipe;
1320
1321 if (!data->isoc_tx_ep)
1322 return ERR_PTR(-ENODEV);
1323
1324 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
1325 if (!urb)
1326 return ERR_PTR(-ENOMEM);
1327
1328 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
1329
1330 usb_fill_int_urb(urb, data->udev, pipe,
1331 skb->data, skb->len, btusb_isoc_tx_complete,
1332 skb, data->isoc_tx_ep->bInterval);
1333
1334 urb->transfer_flags = URB_ISO_ASAP;
1335
1336 __fill_isoc_descriptor(urb, skb->len,
1337 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
1338
1339 skb->dev = (void *)hdev;
1340
1341 return urb;
1342}
1343
1344static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
1345{
1346 struct btusb_data *data = hci_get_drvdata(hdev);
1347 int err;
1348
1349 usb_anchor_urb(urb, &data->tx_anchor);
1350
1351 err = usb_submit_urb(urb, GFP_KERNEL);
1352 if (err < 0) {
1353 if (err != -EPERM && err != -ENODEV)
1354 bt_dev_err(hdev, "urb %p submission failed (%d)",
1355 urb, -err);
1356 kfree(urb->setup_packet);
1357 usb_unanchor_urb(urb);
1358 } else {
1359 usb_mark_last_busy(data->udev);
1360 }
1361
1362 usb_free_urb(urb);
1363 return err;
1364}
1365
1366static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
1367{
1368 struct btusb_data *data = hci_get_drvdata(hdev);
1369 unsigned long flags;
1370 bool suspending;
1371
1372 spin_lock_irqsave(&data->txlock, flags);
1373 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
1374 if (!suspending)
1375 data->tx_in_flight++;
1376 spin_unlock_irqrestore(&data->txlock, flags);
1377
1378 if (!suspending)
1379 return submit_tx_urb(hdev, urb);
1380
1381 usb_anchor_urb(urb, &data->deferred);
1382 schedule_work(&data->waker);
1383
1384 usb_free_urb(urb);
1385 return 0;
1386}
1387
1388static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
1389{
1390 struct urb *urb;
1391
1392 BT_DBG("%s", hdev->name);
1393
1394 switch (hci_skb_pkt_type(skb)) {
1395 case HCI_COMMAND_PKT:
1396 urb = alloc_ctrl_urb(hdev, skb);
1397 if (IS_ERR(urb))
1398 return PTR_ERR(urb);
1399
1400 hdev->stat.cmd_tx++;
1401 return submit_or_queue_tx_urb(hdev, urb);
1402
1403 case HCI_ACLDATA_PKT:
1404 urb = alloc_bulk_urb(hdev, skb);
1405 if (IS_ERR(urb))
1406 return PTR_ERR(urb);
1407
1408 hdev->stat.acl_tx++;
1409 return submit_or_queue_tx_urb(hdev, urb);
1410
1411 case HCI_SCODATA_PKT:
1412 if (hci_conn_num(hdev, SCO_LINK) < 1)
1413 return -ENODEV;
1414
1415 urb = alloc_isoc_urb(hdev, skb);
1416 if (IS_ERR(urb))
1417 return PTR_ERR(urb);
1418
1419 hdev->stat.sco_tx++;
1420 return submit_tx_urb(hdev, urb);
1421 }
1422
1423 return -EILSEQ;
1424}
1425
1426static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
1427{
1428 struct btusb_data *data = hci_get_drvdata(hdev);
1429
1430 BT_DBG("%s evt %d", hdev->name, evt);
1431
1432 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
1433 data->sco_num = hci_conn_num(hdev, SCO_LINK);
1434 schedule_work(&data->work);
1435 }
1436}
1437
1438static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
1439{
1440 struct btusb_data *data = hci_get_drvdata(hdev);
1441 struct usb_interface *intf = data->isoc;
1442 struct usb_endpoint_descriptor *ep_desc;
1443 int i, err;
1444
1445 if (!data->isoc)
1446 return -ENODEV;
1447
1448 err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting);
1449 if (err < 0) {
1450 bt_dev_err(hdev, "setting interface failed (%d)", -err);
1451 return err;
1452 }
1453
1454 data->isoc_altsetting = altsetting;
1455
1456 data->isoc_tx_ep = NULL;
1457 data->isoc_rx_ep = NULL;
1458
1459 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1460 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1461
1462 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
1463 data->isoc_tx_ep = ep_desc;
1464 continue;
1465 }
1466
1467 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
1468 data->isoc_rx_ep = ep_desc;
1469 continue;
1470 }
1471 }
1472
1473 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
1474 bt_dev_err(hdev, "invalid SCO descriptors");
1475 return -ENODEV;
1476 }
1477
1478 return 0;
1479}
1480
1481static void btusb_work(struct work_struct *work)
1482{
1483 struct btusb_data *data = container_of(work, struct btusb_data, work);
1484 struct hci_dev *hdev = data->hdev;
1485 int new_alts;
1486 int err;
1487
1488 if (data->sco_num > 0) {
1489 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
1490 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
1491 if (err < 0) {
1492 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1493 usb_kill_anchored_urbs(&data->isoc_anchor);
1494 return;
1495 }
1496
1497 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
1498 }
1499
1500 if (hdev->voice_setting & 0x0020) {
1501 static const int alts[3] = { 2, 4, 5 };
1502
1503 new_alts = alts[data->sco_num - 1];
1504 } else {
1505 new_alts = data->sco_num;
1506 }
1507
1508 if (data->isoc_altsetting != new_alts) {
1509 unsigned long flags;
1510
1511 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1512 usb_kill_anchored_urbs(&data->isoc_anchor);
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523 spin_lock_irqsave(&data->rxlock, flags);
1524 kfree_skb(data->sco_skb);
1525 data->sco_skb = NULL;
1526 spin_unlock_irqrestore(&data->rxlock, flags);
1527
1528 if (__set_isoc_interface(hdev, new_alts) < 0)
1529 return;
1530 }
1531
1532 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1533 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
1534 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1535 else
1536 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
1537 }
1538 } else {
1539 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1540 usb_kill_anchored_urbs(&data->isoc_anchor);
1541
1542 __set_isoc_interface(hdev, 0);
1543 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
1544 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
1545 }
1546}
1547
1548static void btusb_waker(struct work_struct *work)
1549{
1550 struct btusb_data *data = container_of(work, struct btusb_data, waker);
1551 int err;
1552
1553 err = usb_autopm_get_interface(data->intf);
1554 if (err < 0)
1555 return;
1556
1557 usb_autopm_put_interface(data->intf);
1558}
1559
1560static int btusb_setup_bcm92035(struct hci_dev *hdev)
1561{
1562 struct sk_buff *skb;
1563 u8 val = 0x00;
1564
1565 BT_DBG("%s", hdev->name);
1566
1567 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
1568 if (IS_ERR(skb))
1569 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb));
1570 else
1571 kfree_skb(skb);
1572
1573 return 0;
1574}
1575
1576static int btusb_setup_csr(struct hci_dev *hdev)
1577{
1578 struct hci_rp_read_local_version *rp;
1579 struct sk_buff *skb;
1580
1581 BT_DBG("%s", hdev->name);
1582
1583 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1584 HCI_INIT_TIMEOUT);
1585 if (IS_ERR(skb)) {
1586 int err = PTR_ERR(skb);
1587 bt_dev_err(hdev, "CSR: Local version failed (%d)", err);
1588 return err;
1589 }
1590
1591 if (skb->len != sizeof(struct hci_rp_read_local_version)) {
1592 bt_dev_err(hdev, "CSR: Local version length mismatch");
1593 kfree_skb(skb);
1594 return -EIO;
1595 }
1596
1597 rp = (struct hci_rp_read_local_version *)skb->data;
1598
1599
1600 if (le16_to_cpu(rp->manufacturer) != 10 ||
1601 le16_to_cpu(rp->lmp_subver) == 0x0c5c) {
1602
1603
1604
1605 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1606
1607
1608
1609
1610 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
1611 }
1612
1613 kfree_skb(skb);
1614
1615 return 0;
1616}
1617
1618static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev,
1619 struct intel_version *ver)
1620{
1621 const struct firmware *fw;
1622 char fwname[64];
1623 int ret;
1624
1625 snprintf(fwname, sizeof(fwname),
1626 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq",
1627 ver->hw_platform, ver->hw_variant, ver->hw_revision,
1628 ver->fw_variant, ver->fw_revision, ver->fw_build_num,
1629 ver->fw_build_ww, ver->fw_build_yy);
1630
1631 ret = request_firmware(&fw, fwname, &hdev->dev);
1632 if (ret < 0) {
1633 if (ret == -EINVAL) {
1634 bt_dev_err(hdev, "Intel firmware file request failed (%d)",
1635 ret);
1636 return NULL;
1637 }
1638
1639 bt_dev_err(hdev, "failed to open Intel firmware file: %s (%d)",
1640 fwname, ret);
1641
1642
1643
1644
1645 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq",
1646 ver->hw_platform, ver->hw_variant);
1647 if (request_firmware(&fw, fwname, &hdev->dev) < 0) {
1648 bt_dev_err(hdev, "failed to open default fw file: %s",
1649 fwname);
1650 return NULL;
1651 }
1652 }
1653
1654 bt_dev_info(hdev, "Intel Bluetooth firmware file: %s", fwname);
1655
1656 return fw;
1657}
1658
1659static int btusb_setup_intel_patching(struct hci_dev *hdev,
1660 const struct firmware *fw,
1661 const u8 **fw_ptr, int *disable_patch)
1662{
1663 struct sk_buff *skb;
1664 struct hci_command_hdr *cmd;
1665 const u8 *cmd_param;
1666 struct hci_event_hdr *evt = NULL;
1667 const u8 *evt_param = NULL;
1668 int remain = fw->size - (*fw_ptr - fw->data);
1669
1670
1671
1672
1673
1674
1675
1676
1677 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) {
1678 bt_dev_err(hdev, "Intel fw corrupted: invalid cmd read");
1679 return -EINVAL;
1680 }
1681 (*fw_ptr)++;
1682 remain--;
1683
1684 cmd = (struct hci_command_hdr *)(*fw_ptr);
1685 *fw_ptr += sizeof(*cmd);
1686 remain -= sizeof(*cmd);
1687
1688
1689
1690
1691 if (remain < cmd->plen) {
1692 bt_dev_err(hdev, "Intel fw corrupted: invalid cmd len");
1693 return -EFAULT;
1694 }
1695
1696
1697
1698
1699
1700
1701
1702 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e)
1703 *disable_patch = 0;
1704
1705 cmd_param = *fw_ptr;
1706 *fw_ptr += cmd->plen;
1707 remain -= cmd->plen;
1708
1709
1710
1711
1712
1713
1714
1715
1716 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) {
1717 (*fw_ptr)++;
1718 remain--;
1719
1720 evt = (struct hci_event_hdr *)(*fw_ptr);
1721 *fw_ptr += sizeof(*evt);
1722 remain -= sizeof(*evt);
1723
1724 if (remain < evt->plen) {
1725 bt_dev_err(hdev, "Intel fw corrupted: invalid evt len");
1726 return -EFAULT;
1727 }
1728
1729 evt_param = *fw_ptr;
1730 *fw_ptr += evt->plen;
1731 remain -= evt->plen;
1732 }
1733
1734
1735
1736
1737
1738 if (!evt || !evt_param || remain < 0) {
1739 bt_dev_err(hdev, "Intel fw corrupted: invalid evt read");
1740 return -EFAULT;
1741 }
1742
1743 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen,
1744 cmd_param, evt->evt, HCI_INIT_TIMEOUT);
1745 if (IS_ERR(skb)) {
1746 bt_dev_err(hdev, "sending Intel patch command (0x%4.4x) failed (%ld)",
1747 cmd->opcode, PTR_ERR(skb));
1748 return PTR_ERR(skb);
1749 }
1750
1751
1752
1753
1754
1755 if (skb->len != evt->plen) {
1756 bt_dev_err(hdev, "mismatch event length (opcode 0x%4.4x)",
1757 le16_to_cpu(cmd->opcode));
1758 kfree_skb(skb);
1759 return -EFAULT;
1760 }
1761
1762 if (memcmp(skb->data, evt_param, evt->plen)) {
1763 bt_dev_err(hdev, "mismatch event parameter (opcode 0x%4.4x)",
1764 le16_to_cpu(cmd->opcode));
1765 kfree_skb(skb);
1766 return -EFAULT;
1767 }
1768 kfree_skb(skb);
1769
1770 return 0;
1771}
1772
1773static int btusb_setup_intel(struct hci_dev *hdev)
1774{
1775 struct sk_buff *skb;
1776 const struct firmware *fw;
1777 const u8 *fw_ptr;
1778 int disable_patch, err;
1779 struct intel_version ver;
1780
1781 BT_DBG("%s", hdev->name);
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1792 if (IS_ERR(skb)) {
1793 bt_dev_err(hdev, "sending initial HCI reset command failed (%ld)",
1794 PTR_ERR(skb));
1795 return PTR_ERR(skb);
1796 }
1797 kfree_skb(skb);
1798
1799
1800
1801
1802
1803
1804
1805 err = btintel_read_version(hdev, &ver);
1806 if (err)
1807 return err;
1808
1809 bt_dev_info(hdev, "read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
1810 ver.hw_platform, ver.hw_variant, ver.hw_revision,
1811 ver.fw_variant, ver.fw_revision, ver.fw_build_num,
1812 ver.fw_build_ww, ver.fw_build_yy, ver.fw_patch_num);
1813
1814
1815
1816
1817
1818 if (ver.fw_patch_num) {
1819 bt_dev_info(hdev, "Intel device is already patched. "
1820 "patch num: %02x", ver.fw_patch_num);
1821 goto complete;
1822 }
1823
1824
1825
1826
1827
1828
1829
1830 fw = btusb_setup_intel_get_fw(hdev, &ver);
1831 if (!fw)
1832 goto complete;
1833 fw_ptr = fw->data;
1834
1835
1836
1837
1838
1839 err = btintel_enter_mfg(hdev);
1840 if (err) {
1841 release_firmware(fw);
1842 return err;
1843 }
1844
1845 disable_patch = 1;
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867 while (fw->size > fw_ptr - fw->data) {
1868 int ret;
1869
1870 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr,
1871 &disable_patch);
1872 if (ret < 0)
1873 goto exit_mfg_deactivate;
1874 }
1875
1876 release_firmware(fw);
1877
1878 if (disable_patch)
1879 goto exit_mfg_disable;
1880
1881
1882
1883
1884 err = btintel_exit_mfg(hdev, true, true);
1885 if (err)
1886 return err;
1887
1888 bt_dev_info(hdev, "Intel firmware patch completed and activated");
1889
1890 goto complete;
1891
1892exit_mfg_disable:
1893
1894 err = btintel_exit_mfg(hdev, false, false);
1895 if (err)
1896 return err;
1897
1898 bt_dev_info(hdev, "Intel firmware patch completed");
1899
1900 goto complete;
1901
1902exit_mfg_deactivate:
1903 release_firmware(fw);
1904
1905
1906
1907
1908 err = btintel_exit_mfg(hdev, true, false);
1909 if (err)
1910 return err;
1911
1912 bt_dev_info(hdev, "Intel firmware patch completed and deactivated");
1913
1914complete:
1915
1916
1917
1918 btintel_set_event_mask_mfg(hdev, false);
1919
1920 btintel_check_bdaddr(hdev);
1921 return 0;
1922}
1923
1924static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
1925{
1926 struct sk_buff *skb;
1927 struct hci_event_hdr *hdr;
1928 struct hci_ev_cmd_complete *evt;
1929
1930 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL);
1931 if (!skb)
1932 return -ENOMEM;
1933
1934 hdr = skb_put(skb, sizeof(*hdr));
1935 hdr->evt = HCI_EV_CMD_COMPLETE;
1936 hdr->plen = sizeof(*evt) + 1;
1937
1938 evt = skb_put(skb, sizeof(*evt));
1939 evt->ncmd = 0x01;
1940 evt->opcode = cpu_to_le16(opcode);
1941
1942 skb_put_u8(skb, 0x00);
1943
1944 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
1945
1946 return hci_recv_frame(hdev, skb);
1947}
1948
1949static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
1950 int count)
1951{
1952
1953
1954
1955
1956 if (test_bit(BTUSB_BOOTLOADER, &data->flags))
1957 return btusb_recv_intr(data, buffer, count);
1958
1959 return btusb_recv_bulk(data, buffer, count);
1960}
1961
1962static void btusb_intel_bootup(struct btusb_data *data, const void *ptr,
1963 unsigned int len)
1964{
1965 const struct intel_bootup *evt = ptr;
1966
1967 if (len != sizeof(*evt))
1968 return;
1969
1970 if (test_and_clear_bit(BTUSB_BOOTING, &data->flags))
1971 wake_up_bit(&data->flags, BTUSB_BOOTING);
1972}
1973
1974static void btusb_intel_secure_send_result(struct btusb_data *data,
1975 const void *ptr, unsigned int len)
1976{
1977 const struct intel_secure_send_result *evt = ptr;
1978
1979 if (len != sizeof(*evt))
1980 return;
1981
1982 if (evt->result)
1983 set_bit(BTUSB_FIRMWARE_FAILED, &data->flags);
1984
1985 if (test_and_clear_bit(BTUSB_DOWNLOADING, &data->flags) &&
1986 test_bit(BTUSB_FIRMWARE_LOADED, &data->flags))
1987 wake_up_bit(&data->flags, BTUSB_DOWNLOADING);
1988}
1989
1990static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb)
1991{
1992 struct btusb_data *data = hci_get_drvdata(hdev);
1993
1994 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
1995 struct hci_event_hdr *hdr = (void *)skb->data;
1996
1997 if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff &&
1998 hdr->plen > 0) {
1999 const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1;
2000 unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1;
2001
2002 switch (skb->data[2]) {
2003 case 0x02:
2004
2005
2006
2007
2008 btusb_intel_bootup(data, ptr, len);
2009 break;
2010 case 0x06:
2011
2012
2013
2014
2015
2016 btusb_intel_secure_send_result(data, ptr, len);
2017 break;
2018 }
2019 }
2020 }
2021
2022 return hci_recv_frame(hdev, skb);
2023}
2024
2025static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
2026{
2027 struct btusb_data *data = hci_get_drvdata(hdev);
2028 struct urb *urb;
2029
2030 BT_DBG("%s", hdev->name);
2031
2032 switch (hci_skb_pkt_type(skb)) {
2033 case HCI_COMMAND_PKT:
2034 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
2035 struct hci_command_hdr *cmd = (void *)skb->data;
2036 __u16 opcode = le16_to_cpu(cmd->opcode);
2037
2038
2039
2040
2041
2042 if (opcode == 0xfc09)
2043 urb = alloc_bulk_urb(hdev, skb);
2044 else
2045 urb = alloc_ctrl_urb(hdev, skb);
2046
2047
2048
2049
2050
2051
2052 if (opcode == 0xfc01)
2053 inject_cmd_complete(hdev, opcode);
2054 } else {
2055 urb = alloc_ctrl_urb(hdev, skb);
2056 }
2057 if (IS_ERR(urb))
2058 return PTR_ERR(urb);
2059
2060 hdev->stat.cmd_tx++;
2061 return submit_or_queue_tx_urb(hdev, urb);
2062
2063 case HCI_ACLDATA_PKT:
2064 urb = alloc_bulk_urb(hdev, skb);
2065 if (IS_ERR(urb))
2066 return PTR_ERR(urb);
2067
2068 hdev->stat.acl_tx++;
2069 return submit_or_queue_tx_urb(hdev, urb);
2070
2071 case HCI_SCODATA_PKT:
2072 if (hci_conn_num(hdev, SCO_LINK) < 1)
2073 return -ENODEV;
2074
2075 urb = alloc_isoc_urb(hdev, skb);
2076 if (IS_ERR(urb))
2077 return PTR_ERR(urb);
2078
2079 hdev->stat.sco_tx++;
2080 return submit_tx_urb(hdev, urb);
2081 }
2082
2083 return -EILSEQ;
2084}
2085
2086static bool btusb_setup_intel_new_get_fw_name(struct intel_version *ver,
2087 struct intel_boot_params *params,
2088 char *fw_name, size_t len,
2089 const char *suffix)
2090{
2091 switch (ver->hw_variant) {
2092 case 0x0b:
2093 case 0x0c:
2094 snprintf(fw_name, len, "intel/ibt-%u-%u.%s",
2095 le16_to_cpu(ver->hw_variant),
2096 le16_to_cpu(params->dev_revid),
2097 suffix);
2098 break;
2099 case 0x11:
2100 case 0x12:
2101 case 0x13:
2102 case 0x14:
2103 snprintf(fw_name, len, "intel/ibt-%u-%u-%u.%s",
2104 le16_to_cpu(ver->hw_variant),
2105 le16_to_cpu(ver->hw_revision),
2106 le16_to_cpu(ver->fw_revision),
2107 suffix);
2108 break;
2109 default:
2110 return false;
2111 }
2112 return true;
2113}
2114
2115static int btusb_setup_intel_new(struct hci_dev *hdev)
2116{
2117 struct btusb_data *data = hci_get_drvdata(hdev);
2118 struct intel_version ver;
2119 struct intel_boot_params params;
2120 const struct firmware *fw;
2121 u32 boot_param;
2122 char fwname[64];
2123 ktime_t calltime, delta, rettime;
2124 unsigned long long duration;
2125 int err;
2126
2127 BT_DBG("%s", hdev->name);
2128
2129
2130
2131
2132
2133 boot_param = 0x00000000;
2134
2135 calltime = ktime_get();
2136
2137
2138
2139
2140
2141 err = btintel_read_version(hdev, &ver);
2142 if (err)
2143 return err;
2144
2145
2146
2147
2148 if (ver.hw_platform != 0x37) {
2149 bt_dev_err(hdev, "Unsupported Intel hardware platform (%u)",
2150 ver.hw_platform);
2151 return -EINVAL;
2152 }
2153
2154
2155
2156
2157
2158
2159
2160 switch (ver.hw_variant) {
2161 case 0x0b:
2162 case 0x0c:
2163 case 0x11:
2164 case 0x12:
2165 case 0x13:
2166 case 0x14:
2167 break;
2168 default:
2169 bt_dev_err(hdev, "Unsupported Intel hardware variant (%u)",
2170 ver.hw_variant);
2171 return -EINVAL;
2172 }
2173
2174 btintel_version_info(hdev, &ver);
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189 if (ver.fw_variant == 0x23) {
2190 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2191 btintel_check_bdaddr(hdev);
2192 return 0;
2193 }
2194
2195
2196
2197
2198 if (ver.fw_variant != 0x06) {
2199 bt_dev_err(hdev, "Unsupported Intel firmware variant (%u)",
2200 ver.fw_variant);
2201 return -ENODEV;
2202 }
2203
2204
2205
2206
2207 err = btintel_read_boot_params(hdev, ¶ms);
2208 if (err)
2209 return err;
2210
2211
2212
2213
2214
2215 if (params.limited_cce != 0x00) {
2216 bt_dev_err(hdev, "Unsupported Intel firmware loading method (%u)",
2217 params.limited_cce);
2218 return -EINVAL;
2219 }
2220
2221
2222
2223
2224 if (!bacmp(¶ms.otp_bdaddr, BDADDR_ANY)) {
2225 bt_dev_info(hdev, "No device address configured");
2226 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
2227 }
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250 err = btusb_setup_intel_new_get_fw_name(&ver, ¶ms, fwname,
2251 sizeof(fwname), "sfi");
2252 if (!err) {
2253 bt_dev_err(hdev, "Unsupported Intel firmware naming");
2254 return -EINVAL;
2255 }
2256
2257 err = request_firmware(&fw, fwname, &hdev->dev);
2258 if (err < 0) {
2259 bt_dev_err(hdev, "Failed to load Intel firmware file (%d)", err);
2260 return err;
2261 }
2262
2263 bt_dev_info(hdev, "Found device firmware: %s", fwname);
2264
2265
2266
2267
2268 err = btusb_setup_intel_new_get_fw_name(&ver, ¶ms, fwname,
2269 sizeof(fwname), "ddc");
2270 if (!err) {
2271 bt_dev_err(hdev, "Unsupported Intel firmware naming");
2272 return -EINVAL;
2273 }
2274
2275 if (fw->size < 644) {
2276 bt_dev_err(hdev, "Invalid size of firmware file (%zu)",
2277 fw->size);
2278 err = -EBADF;
2279 goto done;
2280 }
2281
2282 set_bit(BTUSB_DOWNLOADING, &data->flags);
2283
2284
2285 err = btintel_download_firmware(hdev, fw, &boot_param);
2286 if (err < 0)
2287 goto done;
2288
2289 set_bit(BTUSB_FIRMWARE_LOADED, &data->flags);
2290
2291 bt_dev_info(hdev, "Waiting for firmware download to complete");
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304 err = wait_on_bit_timeout(&data->flags, BTUSB_DOWNLOADING,
2305 TASK_INTERRUPTIBLE,
2306 msecs_to_jiffies(5000));
2307 if (err == -EINTR) {
2308 bt_dev_err(hdev, "Firmware loading interrupted");
2309 goto done;
2310 }
2311
2312 if (err) {
2313 bt_dev_err(hdev, "Firmware loading timeout");
2314 err = -ETIMEDOUT;
2315 goto done;
2316 }
2317
2318 if (test_bit(BTUSB_FIRMWARE_FAILED, &data->flags)) {
2319 bt_dev_err(hdev, "Firmware loading failed");
2320 err = -ENOEXEC;
2321 goto done;
2322 }
2323
2324 rettime = ktime_get();
2325 delta = ktime_sub(rettime, calltime);
2326 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2327
2328 bt_dev_info(hdev, "Firmware loaded in %llu usecs", duration);
2329
2330done:
2331 release_firmware(fw);
2332
2333 if (err < 0)
2334 return err;
2335
2336 calltime = ktime_get();
2337
2338 set_bit(BTUSB_BOOTING, &data->flags);
2339
2340 err = btintel_send_intel_reset(hdev, boot_param);
2341 if (err)
2342 return err;
2343
2344
2345
2346
2347
2348
2349
2350
2351 bt_dev_info(hdev, "Waiting for device to boot");
2352
2353 err = wait_on_bit_timeout(&data->flags, BTUSB_BOOTING,
2354 TASK_INTERRUPTIBLE,
2355 msecs_to_jiffies(1000));
2356
2357 if (err == -EINTR) {
2358 bt_dev_err(hdev, "Device boot interrupted");
2359 return -EINTR;
2360 }
2361
2362 if (err) {
2363 bt_dev_err(hdev, "Device boot timeout");
2364 return -ETIMEDOUT;
2365 }
2366
2367 rettime = ktime_get();
2368 delta = ktime_sub(rettime, calltime);
2369 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2370
2371 bt_dev_info(hdev, "Device booted in %llu usecs", duration);
2372
2373 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2374
2375
2376
2377
2378
2379
2380
2381 btintel_load_ddc_config(hdev, fwname);
2382
2383
2384
2385
2386
2387
2388
2389
2390 btintel_set_event_mask(hdev, false);
2391
2392 return 0;
2393}
2394
2395static int btusb_shutdown_intel(struct hci_dev *hdev)
2396{
2397 struct sk_buff *skb;
2398 long ret;
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
2409 if (IS_ERR(skb)) {
2410 ret = PTR_ERR(skb);
2411 bt_dev_err(hdev, "HCI reset during shutdown failed");
2412 return ret;
2413 }
2414 kfree_skb(skb);
2415
2416
2417
2418
2419
2420 skb = __hci_cmd_sync(hdev, 0xfc3f, 0, NULL, HCI_INIT_TIMEOUT);
2421 if (IS_ERR(skb)) {
2422 ret = PTR_ERR(skb);
2423 bt_dev_err(hdev, "turning off Intel device LED failed");
2424 return ret;
2425 }
2426 kfree_skb(skb);
2427
2428 return 0;
2429}
2430
2431static int btusb_shutdown_intel_new(struct hci_dev *hdev)
2432{
2433 struct sk_buff *skb;
2434
2435
2436
2437
2438
2439 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
2440 if (IS_ERR(skb)) {
2441 bt_dev_err(hdev, "HCI reset during shutdown failed");
2442 return PTR_ERR(skb);
2443 }
2444 kfree_skb(skb);
2445
2446 return 0;
2447}
2448
2449#ifdef CONFIG_BT_HCIBTUSB_MTK
2450
2451#define FIRMWARE_MT7663 "mediatek/mt7663pr2h.bin"
2452#define FIRMWARE_MT7668 "mediatek/mt7668pr2h.bin"
2453
2454#define HCI_WMT_MAX_EVENT_SIZE 64
2455
2456enum {
2457 BTMTK_WMT_PATCH_DWNLD = 0x1,
2458 BTMTK_WMT_FUNC_CTRL = 0x6,
2459 BTMTK_WMT_RST = 0x7,
2460 BTMTK_WMT_SEMAPHORE = 0x17,
2461};
2462
2463enum {
2464 BTMTK_WMT_INVALID,
2465 BTMTK_WMT_PATCH_UNDONE,
2466 BTMTK_WMT_PATCH_DONE,
2467 BTMTK_WMT_ON_UNDONE,
2468 BTMTK_WMT_ON_DONE,
2469 BTMTK_WMT_ON_PROGRESS,
2470};
2471
2472struct btmtk_wmt_hdr {
2473 u8 dir;
2474 u8 op;
2475 __le16 dlen;
2476 u8 flag;
2477} __packed;
2478
2479struct btmtk_hci_wmt_cmd {
2480 struct btmtk_wmt_hdr hdr;
2481 u8 data[256];
2482} __packed;
2483
2484struct btmtk_hci_wmt_evt {
2485 struct hci_event_hdr hhdr;
2486 struct btmtk_wmt_hdr whdr;
2487} __packed;
2488
2489struct btmtk_hci_wmt_evt_funcc {
2490 struct btmtk_hci_wmt_evt hwhdr;
2491 __be16 status;
2492} __packed;
2493
2494struct btmtk_tci_sleep {
2495 u8 mode;
2496 __le16 duration;
2497 __le16 host_duration;
2498 u8 host_wakeup_pin;
2499 u8 time_compensation;
2500} __packed;
2501
2502struct btmtk_hci_wmt_params {
2503 u8 op;
2504 u8 flag;
2505 u16 dlen;
2506 const void *data;
2507 u32 *status;
2508};
2509
2510static void btusb_mtk_wmt_recv(struct urb *urb)
2511{
2512 struct hci_dev *hdev = urb->context;
2513 struct btusb_data *data = hci_get_drvdata(hdev);
2514 struct hci_event_hdr *hdr;
2515 struct sk_buff *skb;
2516 int err;
2517
2518 if (urb->status == 0 && urb->actual_length > 0) {
2519 hdev->stat.byte_rx += urb->actual_length;
2520
2521
2522
2523
2524 skb = bt_skb_alloc(HCI_WMT_MAX_EVENT_SIZE, GFP_ATOMIC);
2525 if (!skb) {
2526 hdev->stat.err_rx++;
2527 goto err_out;
2528 }
2529
2530 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
2531 skb_put_data(skb, urb->transfer_buffer, urb->actual_length);
2532
2533 hdr = (void *)skb->data;
2534
2535
2536
2537
2538 hdr->evt = 0xff;
2539
2540
2541
2542
2543 if (test_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags)) {
2544 data->evt_skb = skb_clone(skb, GFP_KERNEL);
2545 if (!data->evt_skb)
2546 goto err_out;
2547 }
2548
2549 err = hci_recv_frame(hdev, skb);
2550 if (err < 0)
2551 goto err_free_skb;
2552
2553 if (test_and_clear_bit(BTUSB_TX_WAIT_VND_EVT,
2554 &data->flags)) {
2555
2556 smp_mb__after_atomic();
2557 wake_up_bit(&data->flags,
2558 BTUSB_TX_WAIT_VND_EVT);
2559 }
2560err_out:
2561 return;
2562err_free_skb:
2563 kfree_skb(data->evt_skb);
2564 data->evt_skb = NULL;
2565 return;
2566 } else if (urb->status == -ENOENT) {
2567
2568 return;
2569 }
2570
2571 usb_mark_last_busy(data->udev);
2572
2573
2574
2575
2576
2577
2578
2579
2580 udelay(100);
2581
2582 usb_anchor_urb(urb, &data->ctrl_anchor);
2583 err = usb_submit_urb(urb, GFP_ATOMIC);
2584 if (err < 0) {
2585
2586
2587
2588 if (err != -EPERM && err != -ENODEV)
2589 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
2590 urb, -err);
2591 usb_unanchor_urb(urb);
2592 }
2593}
2594
2595static int btusb_mtk_submit_wmt_recv_urb(struct hci_dev *hdev)
2596{
2597 struct btusb_data *data = hci_get_drvdata(hdev);
2598 struct usb_ctrlrequest *dr;
2599 unsigned char *buf;
2600 int err, size = 64;
2601 unsigned int pipe;
2602 struct urb *urb;
2603
2604 urb = usb_alloc_urb(0, GFP_KERNEL);
2605 if (!urb)
2606 return -ENOMEM;
2607
2608 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
2609 if (!dr) {
2610 usb_free_urb(urb);
2611 return -ENOMEM;
2612 }
2613
2614 dr->bRequestType = USB_TYPE_VENDOR | USB_DIR_IN;
2615 dr->bRequest = 1;
2616 dr->wIndex = cpu_to_le16(0);
2617 dr->wValue = cpu_to_le16(48);
2618 dr->wLength = cpu_to_le16(size);
2619
2620 buf = kmalloc(size, GFP_KERNEL);
2621 if (!buf) {
2622 kfree(dr);
2623 return -ENOMEM;
2624 }
2625
2626 pipe = usb_rcvctrlpipe(data->udev, 0);
2627
2628 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
2629 buf, size, btusb_mtk_wmt_recv, hdev);
2630
2631 urb->transfer_flags |= URB_FREE_BUFFER;
2632
2633 usb_anchor_urb(urb, &data->ctrl_anchor);
2634 err = usb_submit_urb(urb, GFP_KERNEL);
2635 if (err < 0) {
2636 if (err != -EPERM && err != -ENODEV)
2637 bt_dev_err(hdev, "urb %p submission failed (%d)",
2638 urb, -err);
2639 usb_unanchor_urb(urb);
2640 }
2641
2642 usb_free_urb(urb);
2643
2644 return err;
2645}
2646
2647static int btusb_mtk_hci_wmt_sync(struct hci_dev *hdev,
2648 struct btmtk_hci_wmt_params *wmt_params)
2649{
2650 struct btusb_data *data = hci_get_drvdata(hdev);
2651 struct btmtk_hci_wmt_evt_funcc *wmt_evt_funcc;
2652 u32 hlen, status = BTMTK_WMT_INVALID;
2653 struct btmtk_hci_wmt_evt *wmt_evt;
2654 struct btmtk_hci_wmt_cmd wc;
2655 struct btmtk_wmt_hdr *hdr;
2656 int err;
2657
2658
2659 err = btusb_mtk_submit_wmt_recv_urb(hdev);
2660 if (err < 0)
2661 return err;
2662
2663
2664 hlen = sizeof(*hdr) + wmt_params->dlen;
2665 if (hlen > 255)
2666 return -EINVAL;
2667
2668 hdr = (struct btmtk_wmt_hdr *)&wc;
2669 hdr->dir = 1;
2670 hdr->op = wmt_params->op;
2671 hdr->dlen = cpu_to_le16(wmt_params->dlen + 1);
2672 hdr->flag = wmt_params->flag;
2673 memcpy(wc.data, wmt_params->data, wmt_params->dlen);
2674
2675 set_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2676
2677 err = __hci_cmd_send(hdev, 0xfc6f, hlen, &wc);
2678
2679 if (err < 0) {
2680 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2681 return err;
2682 }
2683
2684
2685
2686
2687
2688
2689
2690
2691
2692
2693 err = wait_on_bit_timeout(&data->flags, BTUSB_TX_WAIT_VND_EVT,
2694 TASK_INTERRUPTIBLE, HCI_INIT_TIMEOUT);
2695 if (err == -EINTR) {
2696 bt_dev_err(hdev, "Execution of wmt command interrupted");
2697 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2698 return err;
2699 }
2700
2701 if (err) {
2702 bt_dev_err(hdev, "Execution of wmt command timed out");
2703 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2704 return -ETIMEDOUT;
2705 }
2706
2707
2708 wmt_evt = (struct btmtk_hci_wmt_evt *)data->evt_skb->data;
2709 if (wmt_evt->whdr.op != hdr->op) {
2710 bt_dev_err(hdev, "Wrong op received %d expected %d",
2711 wmt_evt->whdr.op, hdr->op);
2712 err = -EIO;
2713 goto err_free_skb;
2714 }
2715
2716 switch (wmt_evt->whdr.op) {
2717 case BTMTK_WMT_SEMAPHORE:
2718 if (wmt_evt->whdr.flag == 2)
2719 status = BTMTK_WMT_PATCH_UNDONE;
2720 else
2721 status = BTMTK_WMT_PATCH_DONE;
2722 break;
2723 case BTMTK_WMT_FUNC_CTRL:
2724 wmt_evt_funcc = (struct btmtk_hci_wmt_evt_funcc *)wmt_evt;
2725 if (be16_to_cpu(wmt_evt_funcc->status) == 0x404)
2726 status = BTMTK_WMT_ON_DONE;
2727 else if (be16_to_cpu(wmt_evt_funcc->status) == 0x420)
2728 status = BTMTK_WMT_ON_PROGRESS;
2729 else
2730 status = BTMTK_WMT_ON_UNDONE;
2731 break;
2732 }
2733
2734 if (wmt_params->status)
2735 *wmt_params->status = status;
2736
2737err_free_skb:
2738 kfree_skb(data->evt_skb);
2739 data->evt_skb = NULL;
2740
2741 return err;
2742}
2743
2744static int btusb_mtk_setup_firmware(struct hci_dev *hdev, const char *fwname)
2745{
2746 struct btmtk_hci_wmt_params wmt_params;
2747 const struct firmware *fw;
2748 const u8 *fw_ptr;
2749 size_t fw_size;
2750 int err, dlen;
2751 u8 flag;
2752
2753 err = request_firmware(&fw, fwname, &hdev->dev);
2754 if (err < 0) {
2755 bt_dev_err(hdev, "Failed to load firmware file (%d)", err);
2756 return err;
2757 }
2758
2759 fw_ptr = fw->data;
2760 fw_size = fw->size;
2761
2762
2763 if (fw_size < 30) {
2764 err = -EINVAL;
2765 goto err_release_fw;
2766 }
2767
2768 fw_size -= 30;
2769 fw_ptr += 30;
2770 flag = 1;
2771
2772 wmt_params.op = BTMTK_WMT_PATCH_DWNLD;
2773 wmt_params.status = NULL;
2774
2775 while (fw_size > 0) {
2776 dlen = min_t(int, 250, fw_size);
2777
2778
2779 if (fw_size - dlen <= 0)
2780 flag = 3;
2781 else if (fw_size < fw->size - 30)
2782 flag = 2;
2783
2784 wmt_params.flag = flag;
2785 wmt_params.dlen = dlen;
2786 wmt_params.data = fw_ptr;
2787
2788 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2789 if (err < 0) {
2790 bt_dev_err(hdev, "Failed to send wmt patch dwnld (%d)",
2791 err);
2792 goto err_release_fw;
2793 }
2794
2795 fw_size -= dlen;
2796 fw_ptr += dlen;
2797 }
2798
2799 wmt_params.op = BTMTK_WMT_RST;
2800 wmt_params.flag = 4;
2801 wmt_params.dlen = 0;
2802 wmt_params.data = NULL;
2803 wmt_params.status = NULL;
2804
2805
2806 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2807 if (err < 0) {
2808 bt_dev_err(hdev, "Failed to send wmt rst (%d)", err);
2809 return err;
2810 }
2811
2812
2813 usleep_range(10000, 12000);
2814
2815err_release_fw:
2816 release_firmware(fw);
2817
2818 return err;
2819}
2820
2821static int btusb_mtk_func_query(struct hci_dev *hdev)
2822{
2823 struct btmtk_hci_wmt_params wmt_params;
2824 int status, err;
2825 u8 param = 0;
2826
2827
2828 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
2829 wmt_params.flag = 4;
2830 wmt_params.dlen = sizeof(param);
2831 wmt_params.data = ¶m;
2832 wmt_params.status = &status;
2833
2834 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2835 if (err < 0) {
2836 bt_dev_err(hdev, "Failed to query function status (%d)", err);
2837 return err;
2838 }
2839
2840 return status;
2841}
2842
2843static int btusb_mtk_reg_read(struct btusb_data *data, u32 reg, u32 *val)
2844{
2845 int pipe, err, size = sizeof(u32);
2846 void *buf;
2847
2848 buf = kzalloc(size, GFP_KERNEL);
2849 if (!buf)
2850 return -ENOMEM;
2851
2852 pipe = usb_rcvctrlpipe(data->udev, 0);
2853 err = usb_control_msg(data->udev, pipe, 0x63,
2854 USB_TYPE_VENDOR | USB_DIR_IN,
2855 reg >> 16, reg & 0xffff,
2856 buf, size, USB_CTRL_SET_TIMEOUT);
2857 if (err < 0)
2858 goto err_free_buf;
2859
2860 *val = get_unaligned_le32(buf);
2861
2862err_free_buf:
2863 kfree(buf);
2864
2865 return err;
2866}
2867
2868static int btusb_mtk_id_get(struct btusb_data *data, u32 *id)
2869{
2870 return btusb_mtk_reg_read(data, 0x80000008, id);
2871}
2872
2873static int btusb_mtk_setup(struct hci_dev *hdev)
2874{
2875 struct btusb_data *data = hci_get_drvdata(hdev);
2876 struct btmtk_hci_wmt_params wmt_params;
2877 ktime_t calltime, delta, rettime;
2878 struct btmtk_tci_sleep tci_sleep;
2879 unsigned long long duration;
2880 struct sk_buff *skb;
2881 const char *fwname;
2882 int err, status;
2883 u32 dev_id;
2884 u8 param;
2885
2886 calltime = ktime_get();
2887
2888 err = btusb_mtk_id_get(data, &dev_id);
2889 if (err < 0) {
2890 bt_dev_err(hdev, "Failed to get device id (%d)", err);
2891 return err;
2892 }
2893
2894 switch (dev_id) {
2895 case 0x7663:
2896 fwname = FIRMWARE_MT7663;
2897 break;
2898 case 0x7668:
2899 fwname = FIRMWARE_MT7668;
2900 break;
2901 default:
2902 bt_dev_err(hdev, "Unsupported support hardware variant (%08x)",
2903 dev_id);
2904 return -ENODEV;
2905 }
2906
2907
2908 wmt_params.op = BTMTK_WMT_SEMAPHORE;
2909 wmt_params.flag = 1;
2910 wmt_params.dlen = 0;
2911 wmt_params.data = NULL;
2912 wmt_params.status = &status;
2913
2914 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2915 if (err < 0) {
2916 bt_dev_err(hdev, "Failed to query firmware status (%d)", err);
2917 return err;
2918 }
2919
2920 if (status == BTMTK_WMT_PATCH_DONE) {
2921 bt_dev_info(hdev, "firmware already downloaded");
2922 goto ignore_setup_fw;
2923 }
2924
2925
2926 err = btusb_mtk_setup_firmware(hdev, fwname);
2927 if (err < 0)
2928 return err;
2929
2930ignore_setup_fw:
2931 err = readx_poll_timeout(btusb_mtk_func_query, hdev, status,
2932 status < 0 || status != BTMTK_WMT_ON_PROGRESS,
2933 2000, 5000000);
2934
2935 if (err < 0)
2936 return err;
2937
2938
2939 if (status < 0)
2940 return status;
2941
2942 if (status == BTMTK_WMT_ON_DONE) {
2943 bt_dev_info(hdev, "function already on");
2944 goto ignore_func_on;
2945 }
2946
2947
2948 param = 1;
2949 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
2950 wmt_params.flag = 0;
2951 wmt_params.dlen = sizeof(param);
2952 wmt_params.data = ¶m;
2953 wmt_params.status = NULL;
2954
2955 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2956 if (err < 0) {
2957 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
2958 return err;
2959 }
2960
2961ignore_func_on:
2962
2963 tci_sleep.mode = 0x5;
2964 tci_sleep.duration = cpu_to_le16(0x640);
2965 tci_sleep.host_duration = cpu_to_le16(0x640);
2966 tci_sleep.host_wakeup_pin = 0;
2967 tci_sleep.time_compensation = 0;
2968
2969 skb = __hci_cmd_sync(hdev, 0xfc7a, sizeof(tci_sleep), &tci_sleep,
2970 HCI_INIT_TIMEOUT);
2971 if (IS_ERR(skb)) {
2972 err = PTR_ERR(skb);
2973 bt_dev_err(hdev, "Failed to apply low power setting (%d)", err);
2974 return err;
2975 }
2976 kfree_skb(skb);
2977
2978 rettime = ktime_get();
2979 delta = ktime_sub(rettime, calltime);
2980 duration = (unsigned long long)ktime_to_ns(delta) >> 10;
2981
2982 bt_dev_info(hdev, "Device setup in %llu usecs", duration);
2983
2984 return 0;
2985}
2986
2987static int btusb_mtk_shutdown(struct hci_dev *hdev)
2988{
2989 struct btmtk_hci_wmt_params wmt_params;
2990 u8 param = 0;
2991 int err;
2992
2993
2994 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
2995 wmt_params.flag = 0;
2996 wmt_params.dlen = sizeof(param);
2997 wmt_params.data = ¶m;
2998 wmt_params.status = NULL;
2999
3000 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3001 if (err < 0) {
3002 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3003 return err;
3004 }
3005
3006 return 0;
3007}
3008
3009MODULE_FIRMWARE(FIRMWARE_MT7663);
3010MODULE_FIRMWARE(FIRMWARE_MT7668);
3011#endif
3012
3013#ifdef CONFIG_PM
3014
3015static int marvell_config_oob_wake(struct hci_dev *hdev)
3016{
3017 struct sk_buff *skb;
3018 struct btusb_data *data = hci_get_drvdata(hdev);
3019 struct device *dev = &data->udev->dev;
3020 u16 pin, gap, opcode;
3021 int ret;
3022 u8 cmd[5];
3023
3024
3025 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) ||
3026 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap))
3027 return 0;
3028
3029
3030 opcode = hci_opcode_pack(0x3F, 0x59);
3031 cmd[0] = opcode & 0xFF;
3032 cmd[1] = opcode >> 8;
3033 cmd[2] = 2;
3034 cmd[3] = pin;
3035 cmd[4] = gap;
3036
3037 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
3038 if (!skb) {
3039 bt_dev_err(hdev, "%s: No memory\n", __func__);
3040 return -ENOMEM;
3041 }
3042
3043 skb_put_data(skb, cmd, sizeof(cmd));
3044 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT;
3045
3046 ret = btusb_send_frame(hdev, skb);
3047 if (ret) {
3048 bt_dev_err(hdev, "%s: configuration failed\n", __func__);
3049 kfree_skb(skb);
3050 return ret;
3051 }
3052
3053 return 0;
3054}
3055#endif
3056
3057static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
3058 const bdaddr_t *bdaddr)
3059{
3060 struct sk_buff *skb;
3061 u8 buf[8];
3062 long ret;
3063
3064 buf[0] = 0xfe;
3065 buf[1] = sizeof(bdaddr_t);
3066 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
3067
3068 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
3069 if (IS_ERR(skb)) {
3070 ret = PTR_ERR(skb);
3071 bt_dev_err(hdev, "changing Marvell device address failed (%ld)",
3072 ret);
3073 return ret;
3074 }
3075 kfree_skb(skb);
3076
3077 return 0;
3078}
3079
3080static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
3081 const bdaddr_t *bdaddr)
3082{
3083 struct sk_buff *skb;
3084 u8 buf[10];
3085 long ret;
3086
3087 buf[0] = 0x01;
3088 buf[1] = 0x01;
3089 buf[2] = 0x00;
3090 buf[3] = sizeof(bdaddr_t);
3091 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
3092
3093 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
3094 if (IS_ERR(skb)) {
3095 ret = PTR_ERR(skb);
3096 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
3097 return ret;
3098 }
3099 kfree_skb(skb);
3100
3101 return 0;
3102}
3103
3104#define QCA_DFU_PACKET_LEN 4096
3105
3106#define QCA_GET_TARGET_VERSION 0x09
3107#define QCA_CHECK_STATUS 0x05
3108#define QCA_DFU_DOWNLOAD 0x01
3109
3110#define QCA_SYSCFG_UPDATED 0x40
3111#define QCA_PATCH_UPDATED 0x80
3112#define QCA_DFU_TIMEOUT 3000
3113
3114struct qca_version {
3115 __le32 rom_version;
3116 __le32 patch_version;
3117 __le32 ram_version;
3118 __le32 ref_clock;
3119 __u8 reserved[4];
3120} __packed;
3121
3122struct qca_rampatch_version {
3123 __le16 rom_version;
3124 __le16 patch_version;
3125} __packed;
3126
3127struct qca_device_info {
3128 u32 rom_version;
3129 u8 rampatch_hdr;
3130 u8 nvm_hdr;
3131 u8 ver_offset;
3132};
3133
3134static const struct qca_device_info qca_devices_table[] = {
3135 { 0x00000100, 20, 4, 10 },
3136 { 0x00000101, 20, 4, 10 },
3137 { 0x00000200, 28, 4, 18 },
3138 { 0x00000201, 28, 4, 18 },
3139 { 0x00000300, 28, 4, 18 },
3140 { 0x00000302, 28, 4, 18 },
3141};
3142
3143static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request,
3144 void *data, u16 size)
3145{
3146 int pipe, err;
3147 u8 *buf;
3148
3149 buf = kmalloc(size, GFP_KERNEL);
3150 if (!buf)
3151 return -ENOMEM;
3152
3153
3154
3155
3156 pipe = usb_rcvctrlpipe(udev, 0);
3157 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
3158 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
3159 if (err < 0) {
3160 dev_err(&udev->dev, "Failed to access otp area (%d)", err);
3161 goto done;
3162 }
3163
3164 memcpy(data, buf, size);
3165
3166done:
3167 kfree(buf);
3168
3169 return err;
3170}
3171
3172static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
3173 const struct firmware *firmware,
3174 size_t hdr_size)
3175{
3176 struct btusb_data *btdata = hci_get_drvdata(hdev);
3177 struct usb_device *udev = btdata->udev;
3178 size_t count, size, sent = 0;
3179 int pipe, len, err;
3180 u8 *buf;
3181
3182 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
3183 if (!buf)
3184 return -ENOMEM;
3185
3186 count = firmware->size;
3187
3188 size = min_t(size_t, count, hdr_size);
3189 memcpy(buf, firmware->data, size);
3190
3191
3192
3193
3194
3195
3196 pipe = usb_sndctrlpipe(udev, 0);
3197 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
3198 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
3199 if (err < 0) {
3200 bt_dev_err(hdev, "Failed to send headers (%d)", err);
3201 goto done;
3202 }
3203
3204 sent += size;
3205 count -= size;
3206
3207 while (count) {
3208 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
3209
3210 memcpy(buf, firmware->data + sent, size);
3211
3212 pipe = usb_sndbulkpipe(udev, 0x02);
3213 err = usb_bulk_msg(udev, pipe, buf, size, &len,
3214 QCA_DFU_TIMEOUT);
3215 if (err < 0) {
3216 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)",
3217 sent, firmware->size, err);
3218 break;
3219 }
3220
3221 if (size != len) {
3222 bt_dev_err(hdev, "Failed to get bulk buffer");
3223 err = -EILSEQ;
3224 break;
3225 }
3226
3227 sent += size;
3228 count -= size;
3229 }
3230
3231done:
3232 kfree(buf);
3233 return err;
3234}
3235
3236static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
3237 struct qca_version *ver,
3238 const struct qca_device_info *info)
3239{
3240 struct qca_rampatch_version *rver;
3241 const struct firmware *fw;
3242 u32 ver_rom, ver_patch;
3243 u16 rver_rom, rver_patch;
3244 char fwname[64];
3245 int err;
3246
3247 ver_rom = le32_to_cpu(ver->rom_version);
3248 ver_patch = le32_to_cpu(ver->patch_version);
3249
3250 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom);
3251
3252 err = request_firmware(&fw, fwname, &hdev->dev);
3253 if (err) {
3254 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)",
3255 fwname, err);
3256 return err;
3257 }
3258
3259 bt_dev_info(hdev, "using rampatch file: %s", fwname);
3260
3261 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
3262 rver_rom = le16_to_cpu(rver->rom_version);
3263 rver_patch = le16_to_cpu(rver->patch_version);
3264
3265 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, "
3266 "firmware rome 0x%x build 0x%x",
3267 rver_rom, rver_patch, ver_rom, ver_patch);
3268
3269 if (rver_rom != ver_rom || rver_patch <= ver_patch) {
3270 bt_dev_err(hdev, "rampatch file version did not match with firmware");
3271 err = -EINVAL;
3272 goto done;
3273 }
3274
3275 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
3276
3277done:
3278 release_firmware(fw);
3279
3280 return err;
3281}
3282
3283static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
3284 struct qca_version *ver,
3285 const struct qca_device_info *info)
3286{
3287 const struct firmware *fw;
3288 char fwname[64];
3289 int err;
3290
3291 snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin",
3292 le32_to_cpu(ver->rom_version));
3293
3294 err = request_firmware(&fw, fwname, &hdev->dev);
3295 if (err) {
3296 bt_dev_err(hdev, "failed to request NVM file: %s (%d)",
3297 fwname, err);
3298 return err;
3299 }
3300
3301 bt_dev_info(hdev, "using NVM file: %s", fwname);
3302
3303 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
3304
3305 release_firmware(fw);
3306
3307 return err;
3308}
3309
3310
3311static bool btusb_qca_need_patch(struct usb_device *udev)
3312{
3313 struct qca_version ver;
3314
3315 if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3316 sizeof(ver)) < 0)
3317 return false;
3318
3319 return !(le32_to_cpu(ver.rom_version) & ~0xffffU);
3320}
3321
3322static int btusb_setup_qca(struct hci_dev *hdev)
3323{
3324 struct btusb_data *btdata = hci_get_drvdata(hdev);
3325 struct usb_device *udev = btdata->udev;
3326 const struct qca_device_info *info = NULL;
3327 struct qca_version ver;
3328 u32 ver_rom;
3329 u8 status;
3330 int i, err;
3331
3332 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3333 sizeof(ver));
3334 if (err < 0)
3335 return err;
3336
3337 ver_rom = le32_to_cpu(ver.rom_version);
3338
3339 if (ver_rom & ~0xffffU)
3340 return 0;
3341
3342 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
3343 if (ver_rom == qca_devices_table[i].rom_version)
3344 info = &qca_devices_table[i];
3345 }
3346 if (!info) {
3347 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom);
3348 return -ENODEV;
3349 }
3350
3351 err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status,
3352 sizeof(status));
3353 if (err < 0)
3354 return err;
3355
3356 if (!(status & QCA_PATCH_UPDATED)) {
3357 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
3358 if (err < 0)
3359 return err;
3360 }
3361
3362 if (!(status & QCA_SYSCFG_UPDATED)) {
3363 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
3364 if (err < 0)
3365 return err;
3366 }
3367
3368 return 0;
3369}
3370
3371#ifdef CONFIG_BT_HCIBTUSB_BCM
3372static inline int __set_diag_interface(struct hci_dev *hdev)
3373{
3374 struct btusb_data *data = hci_get_drvdata(hdev);
3375 struct usb_interface *intf = data->diag;
3376 int i;
3377
3378 if (!data->diag)
3379 return -ENODEV;
3380
3381 data->diag_tx_ep = NULL;
3382 data->diag_rx_ep = NULL;
3383
3384 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
3385 struct usb_endpoint_descriptor *ep_desc;
3386
3387 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
3388
3389 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
3390 data->diag_tx_ep = ep_desc;
3391 continue;
3392 }
3393
3394 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
3395 data->diag_rx_ep = ep_desc;
3396 continue;
3397 }
3398 }
3399
3400 if (!data->diag_tx_ep || !data->diag_rx_ep) {
3401 bt_dev_err(hdev, "invalid diagnostic descriptors");
3402 return -ENODEV;
3403 }
3404
3405 return 0;
3406}
3407
3408static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable)
3409{
3410 struct btusb_data *data = hci_get_drvdata(hdev);
3411 struct sk_buff *skb;
3412 struct urb *urb;
3413 unsigned int pipe;
3414
3415 if (!data->diag_tx_ep)
3416 return ERR_PTR(-ENODEV);
3417
3418 urb = usb_alloc_urb(0, GFP_KERNEL);
3419 if (!urb)
3420 return ERR_PTR(-ENOMEM);
3421
3422 skb = bt_skb_alloc(2, GFP_KERNEL);
3423 if (!skb) {
3424 usb_free_urb(urb);
3425 return ERR_PTR(-ENOMEM);
3426 }
3427
3428 skb_put_u8(skb, 0xf0);
3429 skb_put_u8(skb, enable);
3430
3431 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress);
3432
3433 usb_fill_bulk_urb(urb, data->udev, pipe,
3434 skb->data, skb->len, btusb_tx_complete, skb);
3435
3436 skb->dev = (void *)hdev;
3437
3438 return urb;
3439}
3440
3441static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable)
3442{
3443 struct btusb_data *data = hci_get_drvdata(hdev);
3444 struct urb *urb;
3445
3446 if (!data->diag)
3447 return -ENODEV;
3448
3449 if (!test_bit(HCI_RUNNING, &hdev->flags))
3450 return -ENETDOWN;
3451
3452 urb = alloc_diag_urb(hdev, enable);
3453 if (IS_ERR(urb))
3454 return PTR_ERR(urb);
3455
3456 return submit_or_queue_tx_urb(hdev, urb);
3457}
3458#endif
3459
3460#ifdef CONFIG_PM
3461static irqreturn_t btusb_oob_wake_handler(int irq, void *priv)
3462{
3463 struct btusb_data *data = priv;
3464
3465 pm_wakeup_event(&data->udev->dev, 0);
3466 pm_system_wakeup();
3467
3468
3469 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
3470 disable_irq_nosync(irq);
3471 disable_irq_wake(irq);
3472 }
3473 return IRQ_HANDLED;
3474}
3475
3476static const struct of_device_id btusb_match_table[] = {
3477 { .compatible = "usb1286,204e" },
3478 { .compatible = "usbcf3,e300" },
3479 { .compatible = "usb4ca,301a" },
3480 { }
3481};
3482MODULE_DEVICE_TABLE(of, btusb_match_table);
3483
3484
3485static int btusb_config_oob_wake(struct hci_dev *hdev)
3486{
3487 struct btusb_data *data = hci_get_drvdata(hdev);
3488 struct device *dev = &data->udev->dev;
3489 int irq, ret;
3490
3491 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
3492
3493 if (!of_match_device(btusb_match_table, dev))
3494 return 0;
3495
3496
3497 irq = of_irq_get_byname(dev->of_node, "wakeup");
3498 if (irq <= 0) {
3499 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__);
3500 return 0;
3501 }
3502
3503 irq_set_status_flags(irq, IRQ_NOAUTOEN);
3504 ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler,
3505 0, "OOB Wake-on-BT", data);
3506 if (ret) {
3507 bt_dev_err(hdev, "%s: IRQ request failed", __func__);
3508 return ret;
3509 }
3510
3511 ret = device_init_wakeup(dev, true);
3512 if (ret) {
3513 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__);
3514 return ret;
3515 }
3516
3517 data->oob_wake_irq = irq;
3518 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq);
3519 return 0;
3520}
3521#endif
3522
3523static void btusb_check_needs_reset_resume(struct usb_interface *intf)
3524{
3525 if (dmi_check_system(btusb_needs_reset_resume_table))
3526 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
3527}
3528
3529static int btusb_probe(struct usb_interface *intf,
3530 const struct usb_device_id *id)
3531{
3532 struct usb_endpoint_descriptor *ep_desc;
3533 struct gpio_desc *reset_gpio;
3534 struct btusb_data *data;
3535 struct hci_dev *hdev;
3536 unsigned ifnum_base;
3537 int i, err;
3538
3539 BT_DBG("intf %p id %p", intf, id);
3540
3541
3542 if (intf->cur_altsetting->desc.bInterfaceNumber != 0) {
3543 if (!(id->driver_info & BTUSB_IFNUM_2))
3544 return -ENODEV;
3545 if (intf->cur_altsetting->desc.bInterfaceNumber != 2)
3546 return -ENODEV;
3547 }
3548
3549 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber;
3550
3551 if (!id->driver_info) {
3552 const struct usb_device_id *match;
3553
3554 match = usb_match_id(intf, blacklist_table);
3555 if (match)
3556 id = match;
3557 }
3558
3559 if (id->driver_info == BTUSB_IGNORE)
3560 return -ENODEV;
3561
3562 if (id->driver_info & BTUSB_ATH3012) {
3563 struct usb_device *udev = interface_to_usbdev(intf);
3564
3565
3566
3567
3568 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 &&
3569 !btusb_qca_need_patch(udev))
3570 return -ENODEV;
3571 }
3572
3573 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
3574 if (!data)
3575 return -ENOMEM;
3576
3577 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
3578 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
3579
3580 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
3581 data->intr_ep = ep_desc;
3582 continue;
3583 }
3584
3585 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
3586 data->bulk_tx_ep = ep_desc;
3587 continue;
3588 }
3589
3590 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
3591 data->bulk_rx_ep = ep_desc;
3592 continue;
3593 }
3594 }
3595
3596 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
3597 return -ENODEV;
3598
3599 if (id->driver_info & BTUSB_AMP) {
3600 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
3601 data->cmdreq = 0x2b;
3602 } else {
3603 data->cmdreq_type = USB_TYPE_CLASS;
3604 data->cmdreq = 0x00;
3605 }
3606
3607 data->udev = interface_to_usbdev(intf);
3608 data->intf = intf;
3609
3610 INIT_WORK(&data->work, btusb_work);
3611 INIT_WORK(&data->waker, btusb_waker);
3612 init_usb_anchor(&data->deferred);
3613 init_usb_anchor(&data->tx_anchor);
3614 spin_lock_init(&data->txlock);
3615
3616 init_usb_anchor(&data->intr_anchor);
3617 init_usb_anchor(&data->bulk_anchor);
3618 init_usb_anchor(&data->isoc_anchor);
3619 init_usb_anchor(&data->diag_anchor);
3620 init_usb_anchor(&data->ctrl_anchor);
3621 spin_lock_init(&data->rxlock);
3622
3623 if (id->driver_info & BTUSB_INTEL_NEW) {
3624 data->recv_event = btusb_recv_event_intel;
3625 data->recv_bulk = btusb_recv_bulk_intel;
3626 set_bit(BTUSB_BOOTLOADER, &data->flags);
3627 } else {
3628 data->recv_event = hci_recv_frame;
3629 data->recv_bulk = btusb_recv_bulk;
3630 }
3631
3632 hdev = hci_alloc_dev();
3633 if (!hdev)
3634 return -ENOMEM;
3635
3636 hdev->bus = HCI_USB;
3637 hci_set_drvdata(hdev, data);
3638
3639 if (id->driver_info & BTUSB_AMP)
3640 hdev->dev_type = HCI_AMP;
3641 else
3642 hdev->dev_type = HCI_PRIMARY;
3643
3644 data->hdev = hdev;
3645
3646 SET_HCIDEV_DEV(hdev, &intf->dev);
3647
3648 reset_gpio = gpiod_get_optional(&data->udev->dev, "reset",
3649 GPIOD_OUT_LOW);
3650 if (IS_ERR(reset_gpio)) {
3651 err = PTR_ERR(reset_gpio);
3652 goto out_free_dev;
3653 } else if (reset_gpio) {
3654 data->reset_gpio = reset_gpio;
3655 }
3656
3657 hdev->open = btusb_open;
3658 hdev->close = btusb_close;
3659 hdev->flush = btusb_flush;
3660 hdev->send = btusb_send_frame;
3661 hdev->notify = btusb_notify;
3662
3663#ifdef CONFIG_PM
3664 err = btusb_config_oob_wake(hdev);
3665 if (err)
3666 goto out_free_dev;
3667
3668
3669 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) {
3670 err = marvell_config_oob_wake(hdev);
3671 if (err)
3672 goto out_free_dev;
3673 }
3674#endif
3675 if (id->driver_info & BTUSB_CW6622)
3676 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
3677
3678 if (id->driver_info & BTUSB_BCM2045)
3679 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
3680
3681 if (id->driver_info & BTUSB_BCM92035)
3682 hdev->setup = btusb_setup_bcm92035;
3683
3684#ifdef CONFIG_BT_HCIBTUSB_BCM
3685 if (id->driver_info & BTUSB_BCM_PATCHRAM) {
3686 hdev->manufacturer = 15;
3687 hdev->setup = btbcm_setup_patchram;
3688 hdev->set_diag = btusb_bcm_set_diag;
3689 hdev->set_bdaddr = btbcm_set_bdaddr;
3690
3691
3692 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
3693 }
3694
3695 if (id->driver_info & BTUSB_BCM_APPLE) {
3696 hdev->manufacturer = 15;
3697 hdev->setup = btbcm_setup_apple;
3698 hdev->set_diag = btusb_bcm_set_diag;
3699
3700
3701 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
3702 }
3703#endif
3704
3705 if (id->driver_info & BTUSB_INTEL) {
3706 hdev->manufacturer = 2;
3707 hdev->setup = btusb_setup_intel;
3708 hdev->shutdown = btusb_shutdown_intel;
3709 hdev->set_diag = btintel_set_diag_mfg;
3710 hdev->set_bdaddr = btintel_set_bdaddr;
3711 hdev->cmd_timeout = btusb_intel_cmd_timeout;
3712 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
3713 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3714 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks);
3715 }
3716
3717 if (id->driver_info & BTUSB_INTEL_NEW) {
3718 hdev->manufacturer = 2;
3719 hdev->send = btusb_send_frame_intel;
3720 hdev->setup = btusb_setup_intel_new;
3721 hdev->shutdown = btusb_shutdown_intel_new;
3722 hdev->hw_error = btintel_hw_error;
3723 hdev->set_diag = btintel_set_diag;
3724 hdev->set_bdaddr = btintel_set_bdaddr;
3725 hdev->cmd_timeout = btusb_intel_cmd_timeout;
3726 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
3727 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3728 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks);
3729 }
3730
3731 if (id->driver_info & BTUSB_MARVELL)
3732 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
3733
3734#ifdef CONFIG_BT_HCIBTUSB_MTK
3735 if (id->driver_info & BTUSB_MEDIATEK) {
3736 hdev->setup = btusb_mtk_setup;
3737 hdev->shutdown = btusb_mtk_shutdown;
3738 hdev->manufacturer = 70;
3739 set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
3740 }
3741#endif
3742
3743 if (id->driver_info & BTUSB_SWAVE) {
3744 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
3745 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
3746 }
3747
3748 if (id->driver_info & BTUSB_INTEL_BOOT) {
3749 hdev->manufacturer = 2;
3750 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
3751 }
3752
3753 if (id->driver_info & BTUSB_ATH3012) {
3754 data->setup_on_usb = btusb_setup_qca;
3755 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
3756 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3757 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
3758 }
3759
3760 if (id->driver_info & BTUSB_QCA_ROME) {
3761 data->setup_on_usb = btusb_setup_qca;
3762 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
3763 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3764 btusb_check_needs_reset_resume(intf);
3765 }
3766
3767#ifdef CONFIG_BT_HCIBTUSB_RTL
3768 if (id->driver_info & BTUSB_REALTEK) {
3769 hdev->setup = btrtl_setup_realtek;
3770 hdev->shutdown = btrtl_shutdown_realtek;
3771
3772
3773
3774
3775
3776 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
3777 }
3778#endif
3779
3780 if (id->driver_info & BTUSB_AMP) {
3781
3782 data->isoc = NULL;
3783 } else {
3784
3785 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1);
3786 data->isoc_ifnum = ifnum_base + 1;
3787 }
3788
3789 if (!reset)
3790 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3791
3792 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
3793 if (!disable_scofix)
3794 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
3795 }
3796
3797 if (id->driver_info & BTUSB_BROKEN_ISOC)
3798 data->isoc = NULL;
3799
3800 if (id->driver_info & BTUSB_DIGIANSWER) {
3801 data->cmdreq_type = USB_TYPE_VENDOR;
3802 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3803 }
3804
3805 if (id->driver_info & BTUSB_CSR) {
3806 struct usb_device *udev = data->udev;
3807 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
3808
3809
3810 if (bcdDevice < 0x117)
3811 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3812
3813
3814 if (bcdDevice <= 0x100 || bcdDevice == 0x134)
3815 hdev->setup = btusb_setup_csr;
3816
3817 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3818 }
3819
3820 if (id->driver_info & BTUSB_SNIFFER) {
3821 struct usb_device *udev = data->udev;
3822
3823
3824 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
3825 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
3826 }
3827
3828 if (id->driver_info & BTUSB_INTEL_BOOT) {
3829
3830
3831
3832 err = usb_set_interface(data->udev, 0, 0);
3833 if (err < 0) {
3834 BT_ERR("failed to set interface 0, alt 0 %d", err);
3835 goto out_free_dev;
3836 }
3837 }
3838
3839 if (data->isoc) {
3840 err = usb_driver_claim_interface(&btusb_driver,
3841 data->isoc, data);
3842 if (err < 0)
3843 goto out_free_dev;
3844 }
3845
3846#ifdef CONFIG_BT_HCIBTUSB_BCM
3847 if (data->diag) {
3848 if (!usb_driver_claim_interface(&btusb_driver,
3849 data->diag, data))
3850 __set_diag_interface(hdev);
3851 else
3852 data->diag = NULL;
3853 }
3854#endif
3855
3856 if (enable_autosuspend)
3857 usb_enable_autosuspend(data->udev);
3858
3859 err = hci_register_dev(hdev);
3860 if (err < 0)
3861 goto out_free_dev;
3862
3863 usb_set_intfdata(intf, data);
3864
3865 return 0;
3866
3867out_free_dev:
3868 if (data->reset_gpio)
3869 gpiod_put(data->reset_gpio);
3870 hci_free_dev(hdev);
3871 return err;
3872}
3873
3874static void btusb_disconnect(struct usb_interface *intf)
3875{
3876 struct btusb_data *data = usb_get_intfdata(intf);
3877 struct hci_dev *hdev;
3878
3879 BT_DBG("intf %p", intf);
3880
3881 if (!data)
3882 return;
3883
3884 hdev = data->hdev;
3885 usb_set_intfdata(data->intf, NULL);
3886
3887 if (data->isoc)
3888 usb_set_intfdata(data->isoc, NULL);
3889
3890 if (data->diag)
3891 usb_set_intfdata(data->diag, NULL);
3892
3893 hci_unregister_dev(hdev);
3894
3895 if (intf == data->intf) {
3896 if (data->isoc)
3897 usb_driver_release_interface(&btusb_driver, data->isoc);
3898 if (data->diag)
3899 usb_driver_release_interface(&btusb_driver, data->diag);
3900 } else if (intf == data->isoc) {
3901 if (data->diag)
3902 usb_driver_release_interface(&btusb_driver, data->diag);
3903 usb_driver_release_interface(&btusb_driver, data->intf);
3904 } else if (intf == data->diag) {
3905 usb_driver_release_interface(&btusb_driver, data->intf);
3906 if (data->isoc)
3907 usb_driver_release_interface(&btusb_driver, data->isoc);
3908 }
3909
3910 if (data->oob_wake_irq)
3911 device_init_wakeup(&data->udev->dev, false);
3912
3913 if (data->reset_gpio)
3914 gpiod_put(data->reset_gpio);
3915
3916 hci_free_dev(hdev);
3917}
3918
3919#ifdef CONFIG_PM
3920static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
3921{
3922 struct btusb_data *data = usb_get_intfdata(intf);
3923
3924 BT_DBG("intf %p", intf);
3925
3926 if (data->suspend_count++)
3927 return 0;
3928
3929 spin_lock_irq(&data->txlock);
3930 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
3931 set_bit(BTUSB_SUSPENDING, &data->flags);
3932 spin_unlock_irq(&data->txlock);
3933 } else {
3934 spin_unlock_irq(&data->txlock);
3935 data->suspend_count--;
3936 return -EBUSY;
3937 }
3938
3939 cancel_work_sync(&data->work);
3940
3941 btusb_stop_traffic(data);
3942 usb_kill_anchored_urbs(&data->tx_anchor);
3943
3944 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) {
3945 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
3946 enable_irq_wake(data->oob_wake_irq);
3947 enable_irq(data->oob_wake_irq);
3948 }
3949
3950 return 0;
3951}
3952
3953static void play_deferred(struct btusb_data *data)
3954{
3955 struct urb *urb;
3956 int err;
3957
3958 while ((urb = usb_get_from_anchor(&data->deferred))) {
3959 usb_anchor_urb(urb, &data->tx_anchor);
3960
3961 err = usb_submit_urb(urb, GFP_ATOMIC);
3962 if (err < 0) {
3963 if (err != -EPERM && err != -ENODEV)
3964 BT_ERR("%s urb %p submission failed (%d)",
3965 data->hdev->name, urb, -err);
3966 kfree(urb->setup_packet);
3967 usb_unanchor_urb(urb);
3968 usb_free_urb(urb);
3969 break;
3970 }
3971
3972 data->tx_in_flight++;
3973 usb_free_urb(urb);
3974 }
3975
3976
3977 while ((urb = usb_get_from_anchor(&data->deferred))) {
3978 kfree(urb->setup_packet);
3979 usb_free_urb(urb);
3980 }
3981}
3982
3983static int btusb_resume(struct usb_interface *intf)
3984{
3985 struct btusb_data *data = usb_get_intfdata(intf);
3986 struct hci_dev *hdev = data->hdev;
3987 int err = 0;
3988
3989 BT_DBG("intf %p", intf);
3990
3991 if (--data->suspend_count)
3992 return 0;
3993
3994
3995 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
3996 disable_irq(data->oob_wake_irq);
3997 disable_irq_wake(data->oob_wake_irq);
3998 }
3999
4000 if (!test_bit(HCI_RUNNING, &hdev->flags))
4001 goto done;
4002
4003 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
4004 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
4005 if (err < 0) {
4006 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
4007 goto failed;
4008 }
4009 }
4010
4011 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
4012 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
4013 if (err < 0) {
4014 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
4015 goto failed;
4016 }
4017
4018 btusb_submit_bulk_urb(hdev, GFP_NOIO);
4019 }
4020
4021 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
4022 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
4023 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
4024 else
4025 btusb_submit_isoc_urb(hdev, GFP_NOIO);
4026 }
4027
4028 spin_lock_irq(&data->txlock);
4029 play_deferred(data);
4030 clear_bit(BTUSB_SUSPENDING, &data->flags);
4031 spin_unlock_irq(&data->txlock);
4032 schedule_work(&data->work);
4033
4034 return 0;
4035
4036failed:
4037 usb_scuttle_anchored_urbs(&data->deferred);
4038done:
4039 spin_lock_irq(&data->txlock);
4040 clear_bit(BTUSB_SUSPENDING, &data->flags);
4041 spin_unlock_irq(&data->txlock);
4042
4043 return err;
4044}
4045#endif
4046
4047static struct usb_driver btusb_driver = {
4048 .name = "btusb",
4049 .probe = btusb_probe,
4050 .disconnect = btusb_disconnect,
4051#ifdef CONFIG_PM
4052 .suspend = btusb_suspend,
4053 .resume = btusb_resume,
4054#endif
4055 .id_table = btusb_table,
4056 .supports_autosuspend = 1,
4057 .disable_hub_initiated_lpm = 1,
4058};
4059
4060module_usb_driver(btusb_driver);
4061
4062module_param(disable_scofix, bool, 0644);
4063MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
4064
4065module_param(force_scofix, bool, 0644);
4066MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
4067
4068module_param(enable_autosuspend, bool, 0644);
4069MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default");
4070
4071module_param(reset, bool, 0644);
4072MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
4073
4074MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
4075MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
4076MODULE_VERSION(VERSION);
4077MODULE_LICENSE("GPL");
4078