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1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 *
4 * Generic Bluetooth USB driver
5 *
6 * Copyright (C) 2005-2008 Marcel Holtmann <marcel@holtmann.org>
7 */
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#define BTUSB_WIDEBAND_SPEECH 0x400000
61#define BTUSB_VALID_LE_STATES 0x800000
62
63static const struct usb_device_id btusb_table[] = {
64 /* Generic Bluetooth USB device */
65 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
66
67 /* Generic Bluetooth AMP device */
68 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP },
69
70 /* Generic Bluetooth USB interface */
71 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) },
72
73 /* Apple-specific (Broadcom) devices */
74 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01),
75 .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 },
76
77 /* MediaTek MT76x0E */
78 { USB_DEVICE(0x0e8d, 0x763f) },
79
80 /* Broadcom SoftSailing reporting vendor specific */
81 { USB_DEVICE(0x0a5c, 0x21e1) },
82
83 /* Apple MacBookPro 7,1 */
84 { USB_DEVICE(0x05ac, 0x8213) },
85
86 /* Apple iMac11,1 */
87 { USB_DEVICE(0x05ac, 0x8215) },
88
89 /* Apple MacBookPro6,2 */
90 { USB_DEVICE(0x05ac, 0x8218) },
91
92 /* Apple MacBookAir3,1, MacBookAir3,2 */
93 { USB_DEVICE(0x05ac, 0x821b) },
94
95 /* Apple MacBookAir4,1 */
96 { USB_DEVICE(0x05ac, 0x821f) },
97
98 /* Apple MacBookPro8,2 */
99 { USB_DEVICE(0x05ac, 0x821a) },
100
101 /* Apple MacMini5,1 */
102 { USB_DEVICE(0x05ac, 0x8281) },
103
104 /* AVM BlueFRITZ! USB v2.0 */
105 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE },
106
107 /* Bluetooth Ultraport Module from IBM */
108 { USB_DEVICE(0x04bf, 0x030a) },
109
110 /* ALPS Modules with non-standard id */
111 { USB_DEVICE(0x044e, 0x3001) },
112 { USB_DEVICE(0x044e, 0x3002) },
113
114 /* Ericsson with non-standard id */
115 { USB_DEVICE(0x0bdb, 0x1002) },
116
117 /* Canyon CN-BTU1 with HID interfaces */
118 { USB_DEVICE(0x0c10, 0x0000) },
119
120 /* Broadcom BCM20702A0 */
121 { USB_DEVICE(0x413c, 0x8197) },
122
123 /* Broadcom BCM20702B0 (Dynex/Insignia) */
124 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM },
125
126 /* Broadcom BCM43142A0 (Foxconn/Lenovo) */
127 { USB_VENDOR_AND_INTERFACE_INFO(0x105b, 0xff, 0x01, 0x01),
128 .driver_info = BTUSB_BCM_PATCHRAM },
129
130 /* Broadcom BCM920703 (HTC Vive) */
131 { USB_VENDOR_AND_INTERFACE_INFO(0x0bb4, 0xff, 0x01, 0x01),
132 .driver_info = BTUSB_BCM_PATCHRAM },
133
134 /* Foxconn - Hon Hai */
135 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01),
136 .driver_info = BTUSB_BCM_PATCHRAM },
137
138 /* Lite-On Technology - Broadcom based */
139 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01),
140 .driver_info = BTUSB_BCM_PATCHRAM },
141
142 /* Broadcom devices with vendor specific id */
143 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01),
144 .driver_info = BTUSB_BCM_PATCHRAM },
145
146 /* ASUSTek Computer - Broadcom based */
147 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01),
148 .driver_info = BTUSB_BCM_PATCHRAM },
149
150 /* Belkin F8065bf - Broadcom based */
151 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01),
152 .driver_info = BTUSB_BCM_PATCHRAM },
153
154 /* IMC Networks - Broadcom based */
155 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01),
156 .driver_info = BTUSB_BCM_PATCHRAM },
157
158 /* Dell Computer - Broadcom based */
159 { USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01),
160 .driver_info = BTUSB_BCM_PATCHRAM },
161
162 /* Toshiba Corp - Broadcom based */
163 { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01),
164 .driver_info = BTUSB_BCM_PATCHRAM },
165
166 /* Intel Bluetooth USB Bootloader (RAM module) */
167 { USB_DEVICE(0x8087, 0x0a5a),
168 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
169
170 { } /* Terminating entry */
171};
172
173MODULE_DEVICE_TABLE(usb, btusb_table);
174
175static const struct usb_device_id blacklist_table[] = {
176 /* CSR BlueCore devices */
177 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
178
179 /* Broadcom BCM2033 without firmware */
180 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
181
182 /* Broadcom BCM2045 devices */
183 { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 },
184
185 /* Atheros 3011 with sflash firmware */
186 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
187 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
188 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE },
189 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
190 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
191 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
192 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
193
194 /* Atheros AR9285 Malbec with sflash firmware */
195 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
196
197 /* Atheros 3012 with sflash firmware */
198 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
199 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
200 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
201 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
202 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
203 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
204 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
205 { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 },
206 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
207 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
208 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
209 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
210 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
211 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
212 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
213 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
214 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
215 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
216 { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 },
217 { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 },
218 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
219 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
220 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
221 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
222 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
223 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
224 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
225 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
226 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
227 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
228 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
229 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
230 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
231 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 },
232 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
233 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
234 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
235 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
236 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
237 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
238 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
239 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 },
240 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
241 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
242 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
243 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
244 { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 },
245 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
246 { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 },
247 { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 },
248
249 /* Atheros AR5BBU12 with sflash firmware */
250 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
251
252 /* Atheros AR5BBU12 with sflash firmware */
253 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
254 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
255
256 /* QCA ROME chipset */
257 { USB_DEVICE(0x0cf3, 0x535b), .driver_info = BTUSB_QCA_ROME },
258 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME },
259 { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME },
260 { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME },
261 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME },
262 { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME },
263 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME },
264 { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME },
265 { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME },
266 { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME },
267 { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME },
268 { USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME },
269 { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME },
270 { USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME },
271 { USB_DEVICE(0x04ca, 0x3021), .driver_info = BTUSB_QCA_ROME },
272 { USB_DEVICE(0x13d3, 0x3491), .driver_info = BTUSB_QCA_ROME },
273 { USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME },
274 { USB_DEVICE(0x13d3, 0x3501), .driver_info = BTUSB_QCA_ROME },
275
276 /* Broadcom BCM2035 */
277 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
278 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
279 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
280
281 /* Broadcom BCM2045 */
282 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
283 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
284
285 /* IBM/Lenovo ThinkPad with Broadcom chip */
286 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
287 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
288
289 /* HP laptop with Broadcom chip */
290 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
291
292 /* Dell laptop with Broadcom chip */
293 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
294
295 /* Dell Wireless 370 and 410 devices */
296 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
297 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
298
299 /* Belkin F8T012 and F8T013 devices */
300 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
301 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
302
303 /* Asus WL-BTD202 device */
304 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
305
306 /* Kensington Bluetooth USB adapter */
307 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
308
309 /* RTX Telecom based adapters with buggy SCO support */
310 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
311 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
312
313 /* CONWISE Technology based adapters with buggy SCO support */
314 { USB_DEVICE(0x0e5e, 0x6622),
315 .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622},
316
317 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
318 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE },
319
320 /* Digianswer devices */
321 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
322 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
323
324 /* CSR BlueCore Bluetooth Sniffer */
325 { USB_DEVICE(0x0a12, 0x0002),
326 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
327
328 /* Frontline ComProbe Bluetooth Sniffer */
329 { USB_DEVICE(0x16d3, 0x0002),
330 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
331
332 /* Marvell Bluetooth devices */
333 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
334 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
335 { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL },
336
337 /* Intel Bluetooth devices */
338 { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_NEW |
339 BTUSB_WIDEBAND_SPEECH |
340 BTUSB_VALID_LE_STATES },
341 { USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_NEW |
342 BTUSB_WIDEBAND_SPEECH },
343 { USB_DEVICE(0x8087, 0x0029), .driver_info = BTUSB_INTEL_NEW |
344 BTUSB_WIDEBAND_SPEECH },
345 { USB_DEVICE(0x8087, 0x0032), .driver_info = BTUSB_INTEL_NEW |
346 BTUSB_WIDEBAND_SPEECH},
347 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
348 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
349 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL },
350 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_NEW |
351 BTUSB_WIDEBAND_SPEECH },
352 { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL |
353 BTUSB_WIDEBAND_SPEECH },
354 { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_NEW |
355 BTUSB_WIDEBAND_SPEECH |
356 BTUSB_VALID_LE_STATES },
357
358 /* Other Intel Bluetooth devices */
359 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
360 .driver_info = BTUSB_IGNORE },
361
362 /* Realtek 8822CE Bluetooth devices */
363 { USB_DEVICE(0x0bda, 0xb00c), .driver_info = BTUSB_REALTEK |
364 BTUSB_WIDEBAND_SPEECH },
365
366 /* Realtek Bluetooth devices */
367 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
368 .driver_info = BTUSB_REALTEK },
369
370 /* MediaTek Bluetooth devices */
371 { USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01),
372 .driver_info = BTUSB_MEDIATEK },
373
374 /* Additional Realtek 8723AE Bluetooth devices */
375 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
376 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
377
378 /* Additional Realtek 8723BE Bluetooth devices */
379 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
380 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
381 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
382 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
383 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
384 { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK },
385
386 /* Additional Realtek 8723BU Bluetooth devices */
387 { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK },
388
389 /* Additional Realtek 8723DE Bluetooth devices */
390 { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK },
391 { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK },
392
393 /* Additional Realtek 8821AE Bluetooth devices */
394 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
395 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
396 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
397 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
398 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
399
400 /* Additional Realtek 8822BE Bluetooth devices */
401 { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK },
402 { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK },
403
404 /* Additional Realtek 8822CE Bluetooth devices */
405 { USB_DEVICE(0x04ca, 0x4005), .driver_info = BTUSB_REALTEK },
406 { USB_DEVICE(0x13d3, 0x3548), .driver_info = BTUSB_REALTEK },
407
408 /* Silicon Wave based devices */
409 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE },
410
411 { } /* Terminating entry */
412};
413
414/* The Bluetooth USB module build into some devices needs to be reset on resume,
415 * this is a problem with the platform (likely shutting off all power) not with
416 * the module itself. So we use a DMI list to match known broken platforms.
417 */
418static const struct dmi_system_id btusb_needs_reset_resume_table[] = {
419 {
420 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */
421 .matches = {
422 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
423 DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"),
424 },
425 },
426 {
427 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */
428 .matches = {
429 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
430 DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"),
431 },
432 },
433 {
434 /* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */
435 .matches = {
436 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
437 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"),
438 },
439 },
440 {}
441};
442
443#define BTUSB_MAX_ISOC_FRAMES 10
444
445#define BTUSB_INTR_RUNNING 0
446#define BTUSB_BULK_RUNNING 1
447#define BTUSB_ISOC_RUNNING 2
448#define BTUSB_SUSPENDING 3
449#define BTUSB_DID_ISO_RESUME 4
450#define BTUSB_BOOTLOADER 5
451#define BTUSB_DOWNLOADING 6
452#define BTUSB_FIRMWARE_LOADED 7
453#define BTUSB_FIRMWARE_FAILED 8
454#define BTUSB_BOOTING 9
455#define BTUSB_DIAG_RUNNING 10
456#define BTUSB_OOB_WAKE_ENABLED 11
457#define BTUSB_HW_RESET_ACTIVE 12
458#define BTUSB_TX_WAIT_VND_EVT 13
459#define BTUSB_WAKEUP_DISABLE 14
460#define BTUSB_USE_ALT1_FOR_WBS 15
461
462struct btusb_data {
463 struct hci_dev *hdev;
464 struct usb_device *udev;
465 struct usb_interface *intf;
466 struct usb_interface *isoc;
467 struct usb_interface *diag;
468 unsigned isoc_ifnum;
469
470 unsigned long flags;
471
472 struct work_struct work;
473 struct work_struct waker;
474
475 struct usb_anchor deferred;
476 struct usb_anchor tx_anchor;
477 int tx_in_flight;
478 spinlock_t txlock;
479
480 struct usb_anchor intr_anchor;
481 struct usb_anchor bulk_anchor;
482 struct usb_anchor isoc_anchor;
483 struct usb_anchor diag_anchor;
484 struct usb_anchor ctrl_anchor;
485 spinlock_t rxlock;
486
487 struct sk_buff *evt_skb;
488 struct sk_buff *acl_skb;
489 struct sk_buff *sco_skb;
490
491 struct usb_endpoint_descriptor *intr_ep;
492 struct usb_endpoint_descriptor *bulk_tx_ep;
493 struct usb_endpoint_descriptor *bulk_rx_ep;
494 struct usb_endpoint_descriptor *isoc_tx_ep;
495 struct usb_endpoint_descriptor *isoc_rx_ep;
496 struct usb_endpoint_descriptor *diag_tx_ep;
497 struct usb_endpoint_descriptor *diag_rx_ep;
498
499 struct gpio_desc *reset_gpio;
500
501 __u8 cmdreq_type;
502 __u8 cmdreq;
503
504 unsigned int sco_num;
505 unsigned int air_mode;
506 bool usb_alt6_packet_flow;
507 int isoc_altsetting;
508 int suspend_count;
509
510 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
511 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
512
513 int (*setup_on_usb)(struct hci_dev *hdev);
514
515 int oob_wake_irq; /* irq for out-of-band wake-on-bt */
516 unsigned cmd_timeout_cnt;
517};
518
519static void btusb_intel_cmd_timeout(struct hci_dev *hdev)
520{
521 struct btusb_data *data = hci_get_drvdata(hdev);
522 struct gpio_desc *reset_gpio = data->reset_gpio;
523
524 if (++data->cmd_timeout_cnt < 5)
525 return;
526
527 if (!reset_gpio) {
528 bt_dev_err(hdev, "No way to reset. Ignoring and continuing");
529 return;
530 }
531
532 /*
533 * Toggle the hard reset line if the platform provides one. The reset
534 * is going to yank the device off the USB and then replug. So doing
535 * once is enough. The cleanup is handled correctly on the way out
536 * (standard USB disconnect), and the new device is detected cleanly
537 * and bound to the driver again like it should be.
538 */
539 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
540 bt_dev_err(hdev, "last reset failed? Not resetting again");
541 return;
542 }
543
544 bt_dev_err(hdev, "Initiating HW reset via gpio");
545 gpiod_set_value_cansleep(reset_gpio, 1);
546 msleep(100);
547 gpiod_set_value_cansleep(reset_gpio, 0);
548}
549
550static void btusb_rtl_cmd_timeout(struct hci_dev *hdev)
551{
552 struct btusb_data *data = hci_get_drvdata(hdev);
553 struct gpio_desc *reset_gpio = data->reset_gpio;
554
555 if (++data->cmd_timeout_cnt < 5)
556 return;
557
558 if (!reset_gpio) {
559 bt_dev_err(hdev, "No gpio to reset Realtek device, ignoring");
560 return;
561 }
562
563 /* Toggle the hard reset line. The Realtek device is going to
564 * yank itself off the USB and then replug. The cleanup is handled
565 * correctly on the way out (standard USB disconnect), and the new
566 * device is detected cleanly and bound to the driver again like
567 * it should be.
568 */
569 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
570 bt_dev_err(hdev, "last reset failed? Not resetting again");
571 return;
572 }
573
574 bt_dev_err(hdev, "Reset Realtek device via gpio");
575 gpiod_set_value_cansleep(reset_gpio, 1);
576 msleep(200);
577 gpiod_set_value_cansleep(reset_gpio, 0);
578}
579
580static void btusb_qca_cmd_timeout(struct hci_dev *hdev)
581{
582 struct btusb_data *data = hci_get_drvdata(hdev);
583 int err;
584
585 if (++data->cmd_timeout_cnt < 5)
586 return;
587
588 bt_dev_err(hdev, "Multiple cmd timeouts seen. Resetting usb device.");
589 /* This is not an unbalanced PM reference since the device will reset */
590 err = usb_autopm_get_interface(data->intf);
591 if (!err)
592 usb_queue_reset_device(data->intf);
593 else
594 bt_dev_err(hdev, "Failed usb_autopm_get_interface with %d", err);
595}
596
597static inline void btusb_free_frags(struct btusb_data *data)
598{
599 unsigned long flags;
600
601 spin_lock_irqsave(&data->rxlock, flags);
602
603 kfree_skb(data->evt_skb);
604 data->evt_skb = NULL;
605
606 kfree_skb(data->acl_skb);
607 data->acl_skb = NULL;
608
609 kfree_skb(data->sco_skb);
610 data->sco_skb = NULL;
611
612 spin_unlock_irqrestore(&data->rxlock, flags);
613}
614
615static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
616{
617 struct sk_buff *skb;
618 unsigned long flags;
619 int err = 0;
620
621 spin_lock_irqsave(&data->rxlock, flags);
622 skb = data->evt_skb;
623
624 while (count) {
625 int len;
626
627 if (!skb) {
628 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
629 if (!skb) {
630 err = -ENOMEM;
631 break;
632 }
633
634 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
635 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE;
636 }
637
638 len = min_t(uint, hci_skb_expect(skb), count);
639 skb_put_data(skb, buffer, len);
640
641 count -= len;
642 buffer += len;
643 hci_skb_expect(skb) -= len;
644
645 if (skb->len == HCI_EVENT_HDR_SIZE) {
646 /* Complete event header */
647 hci_skb_expect(skb) = hci_event_hdr(skb)->plen;
648
649 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
650 kfree_skb(skb);
651 skb = NULL;
652
653 err = -EILSEQ;
654 break;
655 }
656 }
657
658 if (!hci_skb_expect(skb)) {
659 /* Complete frame */
660 data->recv_event(data->hdev, skb);
661 skb = NULL;
662 }
663 }
664
665 data->evt_skb = skb;
666 spin_unlock_irqrestore(&data->rxlock, flags);
667
668 return err;
669}
670
671static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
672{
673 struct sk_buff *skb;
674 unsigned long flags;
675 int err = 0;
676
677 spin_lock_irqsave(&data->rxlock, flags);
678 skb = data->acl_skb;
679
680 while (count) {
681 int len;
682
683 if (!skb) {
684 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
685 if (!skb) {
686 err = -ENOMEM;
687 break;
688 }
689
690 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT;
691 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE;
692 }
693
694 len = min_t(uint, hci_skb_expect(skb), count);
695 skb_put_data(skb, buffer, len);
696
697 count -= len;
698 buffer += len;
699 hci_skb_expect(skb) -= len;
700
701 if (skb->len == HCI_ACL_HDR_SIZE) {
702 __le16 dlen = hci_acl_hdr(skb)->dlen;
703
704 /* Complete ACL header */
705 hci_skb_expect(skb) = __le16_to_cpu(dlen);
706
707 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
708 kfree_skb(skb);
709 skb = NULL;
710
711 err = -EILSEQ;
712 break;
713 }
714 }
715
716 if (!hci_skb_expect(skb)) {
717 /* Complete frame */
718 hci_recv_frame(data->hdev, skb);
719 skb = NULL;
720 }
721 }
722
723 data->acl_skb = skb;
724 spin_unlock_irqrestore(&data->rxlock, flags);
725
726 return err;
727}
728
729static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
730{
731 struct sk_buff *skb;
732 unsigned long flags;
733 int err = 0;
734
735 spin_lock_irqsave(&data->rxlock, flags);
736 skb = data->sco_skb;
737
738 while (count) {
739 int len;
740
741 if (!skb) {
742 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
743 if (!skb) {
744 err = -ENOMEM;
745 break;
746 }
747
748 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT;
749 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE;
750 }
751
752 len = min_t(uint, hci_skb_expect(skb), count);
753 skb_put_data(skb, buffer, len);
754
755 count -= len;
756 buffer += len;
757 hci_skb_expect(skb) -= len;
758
759 if (skb->len == HCI_SCO_HDR_SIZE) {
760 /* Complete SCO header */
761 hci_skb_expect(skb) = hci_sco_hdr(skb)->dlen;
762
763 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
764 kfree_skb(skb);
765 skb = NULL;
766
767 err = -EILSEQ;
768 break;
769 }
770 }
771
772 if (!hci_skb_expect(skb)) {
773 /* Complete frame */
774 hci_recv_frame(data->hdev, skb);
775 skb = NULL;
776 }
777 }
778
779 data->sco_skb = skb;
780 spin_unlock_irqrestore(&data->rxlock, flags);
781
782 return err;
783}
784
785static void btusb_intr_complete(struct urb *urb)
786{
787 struct hci_dev *hdev = urb->context;
788 struct btusb_data *data = hci_get_drvdata(hdev);
789 int err;
790
791 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
792 urb->actual_length);
793
794 if (!test_bit(HCI_RUNNING, &hdev->flags))
795 return;
796
797 if (urb->status == 0) {
798 hdev->stat.byte_rx += urb->actual_length;
799
800 if (btusb_recv_intr(data, urb->transfer_buffer,
801 urb->actual_length) < 0) {
802 bt_dev_err(hdev, "corrupted event packet");
803 hdev->stat.err_rx++;
804 }
805 } else if (urb->status == -ENOENT) {
806 /* Avoid suspend failed when usb_kill_urb */
807 return;
808 }
809
810 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
811 return;
812
813 usb_mark_last_busy(data->udev);
814 usb_anchor_urb(urb, &data->intr_anchor);
815
816 err = usb_submit_urb(urb, GFP_ATOMIC);
817 if (err < 0) {
818 /* -EPERM: urb is being killed;
819 * -ENODEV: device got disconnected
820 */
821 if (err != -EPERM && err != -ENODEV)
822 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
823 urb, -err);
824 usb_unanchor_urb(urb);
825 }
826}
827
828static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
829{
830 struct btusb_data *data = hci_get_drvdata(hdev);
831 struct urb *urb;
832 unsigned char *buf;
833 unsigned int pipe;
834 int err, size;
835
836 BT_DBG("%s", hdev->name);
837
838 if (!data->intr_ep)
839 return -ENODEV;
840
841 urb = usb_alloc_urb(0, mem_flags);
842 if (!urb)
843 return -ENOMEM;
844
845 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
846
847 buf = kmalloc(size, mem_flags);
848 if (!buf) {
849 usb_free_urb(urb);
850 return -ENOMEM;
851 }
852
853 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
854
855 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
856 btusb_intr_complete, hdev, data->intr_ep->bInterval);
857
858 urb->transfer_flags |= URB_FREE_BUFFER;
859
860 usb_anchor_urb(urb, &data->intr_anchor);
861
862 err = usb_submit_urb(urb, mem_flags);
863 if (err < 0) {
864 if (err != -EPERM && err != -ENODEV)
865 bt_dev_err(hdev, "urb %p submission failed (%d)",
866 urb, -err);
867 usb_unanchor_urb(urb);
868 }
869
870 usb_free_urb(urb);
871
872 return err;
873}
874
875static void btusb_bulk_complete(struct urb *urb)
876{
877 struct hci_dev *hdev = urb->context;
878 struct btusb_data *data = hci_get_drvdata(hdev);
879 int err;
880
881 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
882 urb->actual_length);
883
884 if (!test_bit(HCI_RUNNING, &hdev->flags))
885 return;
886
887 if (urb->status == 0) {
888 hdev->stat.byte_rx += urb->actual_length;
889
890 if (data->recv_bulk(data, urb->transfer_buffer,
891 urb->actual_length) < 0) {
892 bt_dev_err(hdev, "corrupted ACL packet");
893 hdev->stat.err_rx++;
894 }
895 } else if (urb->status == -ENOENT) {
896 /* Avoid suspend failed when usb_kill_urb */
897 return;
898 }
899
900 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
901 return;
902
903 usb_anchor_urb(urb, &data->bulk_anchor);
904 usb_mark_last_busy(data->udev);
905
906 err = usb_submit_urb(urb, GFP_ATOMIC);
907 if (err < 0) {
908 /* -EPERM: urb is being killed;
909 * -ENODEV: device got disconnected
910 */
911 if (err != -EPERM && err != -ENODEV)
912 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
913 urb, -err);
914 usb_unanchor_urb(urb);
915 }
916}
917
918static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
919{
920 struct btusb_data *data = hci_get_drvdata(hdev);
921 struct urb *urb;
922 unsigned char *buf;
923 unsigned int pipe;
924 int err, size = HCI_MAX_FRAME_SIZE;
925
926 BT_DBG("%s", hdev->name);
927
928 if (!data->bulk_rx_ep)
929 return -ENODEV;
930
931 urb = usb_alloc_urb(0, mem_flags);
932 if (!urb)
933 return -ENOMEM;
934
935 buf = kmalloc(size, mem_flags);
936 if (!buf) {
937 usb_free_urb(urb);
938 return -ENOMEM;
939 }
940
941 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
942
943 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
944 btusb_bulk_complete, hdev);
945
946 urb->transfer_flags |= URB_FREE_BUFFER;
947
948 usb_mark_last_busy(data->udev);
949 usb_anchor_urb(urb, &data->bulk_anchor);
950
951 err = usb_submit_urb(urb, mem_flags);
952 if (err < 0) {
953 if (err != -EPERM && err != -ENODEV)
954 bt_dev_err(hdev, "urb %p submission failed (%d)",
955 urb, -err);
956 usb_unanchor_urb(urb);
957 }
958
959 usb_free_urb(urb);
960
961 return err;
962}
963
964static void btusb_isoc_complete(struct urb *urb)
965{
966 struct hci_dev *hdev = urb->context;
967 struct btusb_data *data = hci_get_drvdata(hdev);
968 int i, err;
969
970 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
971 urb->actual_length);
972
973 if (!test_bit(HCI_RUNNING, &hdev->flags))
974 return;
975
976 if (urb->status == 0) {
977 for (i = 0; i < urb->number_of_packets; i++) {
978 unsigned int offset = urb->iso_frame_desc[i].offset;
979 unsigned int length = urb->iso_frame_desc[i].actual_length;
980
981 if (urb->iso_frame_desc[i].status)
982 continue;
983
984 hdev->stat.byte_rx += length;
985
986 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
987 length) < 0) {
988 bt_dev_err(hdev, "corrupted SCO packet");
989 hdev->stat.err_rx++;
990 }
991 }
992 } else if (urb->status == -ENOENT) {
993 /* Avoid suspend failed when usb_kill_urb */
994 return;
995 }
996
997 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
998 return;
999
1000 usb_anchor_urb(urb, &data->isoc_anchor);
1001
1002 err = usb_submit_urb(urb, GFP_ATOMIC);
1003 if (err < 0) {
1004 /* -EPERM: urb is being killed;
1005 * -ENODEV: device got disconnected
1006 */
1007 if (err != -EPERM && err != -ENODEV)
1008 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1009 urb, -err);
1010 usb_unanchor_urb(urb);
1011 }
1012}
1013
1014static inline void __fill_isoc_descriptor_msbc(struct urb *urb, int len,
1015 int mtu, struct btusb_data *data)
1016{
1017 int i, offset = 0;
1018 unsigned int interval;
1019
1020 BT_DBG("len %d mtu %d", len, mtu);
1021
1022 /* For mSBC ALT 6 setting the host will send the packet at continuous
1023 * flow. As per core spec 5, vol 4, part B, table 2.1. For ALT setting
1024 * 6 the HCI PACKET INTERVAL should be 7.5ms for every usb packets.
1025 * To maintain the rate we send 63bytes of usb packets alternatively for
1026 * 7ms and 8ms to maintain the rate as 7.5ms.
1027 */
1028 if (data->usb_alt6_packet_flow) {
1029 interval = 7;
1030 data->usb_alt6_packet_flow = false;
1031 } else {
1032 interval = 6;
1033 data->usb_alt6_packet_flow = true;
1034 }
1035
1036 for (i = 0; i < interval; i++) {
1037 urb->iso_frame_desc[i].offset = offset;
1038 urb->iso_frame_desc[i].length = offset;
1039 }
1040
1041 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1042 urb->iso_frame_desc[i].offset = offset;
1043 urb->iso_frame_desc[i].length = len;
1044 i++;
1045 }
1046
1047 urb->number_of_packets = i;
1048}
1049
1050static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
1051{
1052 int i, offset = 0;
1053
1054 BT_DBG("len %d mtu %d", len, mtu);
1055
1056 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
1057 i++, offset += mtu, len -= mtu) {
1058 urb->iso_frame_desc[i].offset = offset;
1059 urb->iso_frame_desc[i].length = mtu;
1060 }
1061
1062 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1063 urb->iso_frame_desc[i].offset = offset;
1064 urb->iso_frame_desc[i].length = len;
1065 i++;
1066 }
1067
1068 urb->number_of_packets = i;
1069}
1070
1071static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
1072{
1073 struct btusb_data *data = hci_get_drvdata(hdev);
1074 struct urb *urb;
1075 unsigned char *buf;
1076 unsigned int pipe;
1077 int err, size;
1078
1079 BT_DBG("%s", hdev->name);
1080
1081 if (!data->isoc_rx_ep)
1082 return -ENODEV;
1083
1084 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
1085 if (!urb)
1086 return -ENOMEM;
1087
1088 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
1089 BTUSB_MAX_ISOC_FRAMES;
1090
1091 buf = kmalloc(size, mem_flags);
1092 if (!buf) {
1093 usb_free_urb(urb);
1094 return -ENOMEM;
1095 }
1096
1097 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
1098
1099 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
1100 hdev, data->isoc_rx_ep->bInterval);
1101
1102 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
1103
1104 __fill_isoc_descriptor(urb, size,
1105 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
1106
1107 usb_anchor_urb(urb, &data->isoc_anchor);
1108
1109 err = usb_submit_urb(urb, mem_flags);
1110 if (err < 0) {
1111 if (err != -EPERM && err != -ENODEV)
1112 bt_dev_err(hdev, "urb %p submission failed (%d)",
1113 urb, -err);
1114 usb_unanchor_urb(urb);
1115 }
1116
1117 usb_free_urb(urb);
1118
1119 return err;
1120}
1121
1122static void btusb_diag_complete(struct urb *urb)
1123{
1124 struct hci_dev *hdev = urb->context;
1125 struct btusb_data *data = hci_get_drvdata(hdev);
1126 int err;
1127
1128 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1129 urb->actual_length);
1130
1131 if (urb->status == 0) {
1132 struct sk_buff *skb;
1133
1134 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC);
1135 if (skb) {
1136 skb_put_data(skb, urb->transfer_buffer,
1137 urb->actual_length);
1138 hci_recv_diag(hdev, skb);
1139 }
1140 } else if (urb->status == -ENOENT) {
1141 /* Avoid suspend failed when usb_kill_urb */
1142 return;
1143 }
1144
1145 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags))
1146 return;
1147
1148 usb_anchor_urb(urb, &data->diag_anchor);
1149 usb_mark_last_busy(data->udev);
1150
1151 err = usb_submit_urb(urb, GFP_ATOMIC);
1152 if (err < 0) {
1153 /* -EPERM: urb is being killed;
1154 * -ENODEV: device got disconnected
1155 */
1156 if (err != -EPERM && err != -ENODEV)
1157 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1158 urb, -err);
1159 usb_unanchor_urb(urb);
1160 }
1161}
1162
1163static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags)
1164{
1165 struct btusb_data *data = hci_get_drvdata(hdev);
1166 struct urb *urb;
1167 unsigned char *buf;
1168 unsigned int pipe;
1169 int err, size = HCI_MAX_FRAME_SIZE;
1170
1171 BT_DBG("%s", hdev->name);
1172
1173 if (!data->diag_rx_ep)
1174 return -ENODEV;
1175
1176 urb = usb_alloc_urb(0, mem_flags);
1177 if (!urb)
1178 return -ENOMEM;
1179
1180 buf = kmalloc(size, mem_flags);
1181 if (!buf) {
1182 usb_free_urb(urb);
1183 return -ENOMEM;
1184 }
1185
1186 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress);
1187
1188 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1189 btusb_diag_complete, hdev);
1190
1191 urb->transfer_flags |= URB_FREE_BUFFER;
1192
1193 usb_mark_last_busy(data->udev);
1194 usb_anchor_urb(urb, &data->diag_anchor);
1195
1196 err = usb_submit_urb(urb, mem_flags);
1197 if (err < 0) {
1198 if (err != -EPERM && err != -ENODEV)
1199 bt_dev_err(hdev, "urb %p submission failed (%d)",
1200 urb, -err);
1201 usb_unanchor_urb(urb);
1202 }
1203
1204 usb_free_urb(urb);
1205
1206 return err;
1207}
1208
1209static void btusb_tx_complete(struct urb *urb)
1210{
1211 struct sk_buff *skb = urb->context;
1212 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1213 struct btusb_data *data = hci_get_drvdata(hdev);
1214 unsigned long flags;
1215
1216 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1217 urb->actual_length);
1218
1219 if (!test_bit(HCI_RUNNING, &hdev->flags))
1220 goto done;
1221
1222 if (!urb->status)
1223 hdev->stat.byte_tx += urb->transfer_buffer_length;
1224 else
1225 hdev->stat.err_tx++;
1226
1227done:
1228 spin_lock_irqsave(&data->txlock, flags);
1229 data->tx_in_flight--;
1230 spin_unlock_irqrestore(&data->txlock, flags);
1231
1232 kfree(urb->setup_packet);
1233
1234 kfree_skb(skb);
1235}
1236
1237static void btusb_isoc_tx_complete(struct urb *urb)
1238{
1239 struct sk_buff *skb = urb->context;
1240 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1241
1242 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1243 urb->actual_length);
1244
1245 if (!test_bit(HCI_RUNNING, &hdev->flags))
1246 goto done;
1247
1248 if (!urb->status)
1249 hdev->stat.byte_tx += urb->transfer_buffer_length;
1250 else
1251 hdev->stat.err_tx++;
1252
1253done:
1254 kfree(urb->setup_packet);
1255
1256 kfree_skb(skb);
1257}
1258
1259static int btusb_open(struct hci_dev *hdev)
1260{
1261 struct btusb_data *data = hci_get_drvdata(hdev);
1262 int err;
1263
1264 BT_DBG("%s", hdev->name);
1265
1266 err = usb_autopm_get_interface(data->intf);
1267 if (err < 0)
1268 return err;
1269
1270 /* Patching USB firmware files prior to starting any URBs of HCI path
1271 * It is more safe to use USB bulk channel for downloading USB patch
1272 */
1273 if (data->setup_on_usb) {
1274 err = data->setup_on_usb(hdev);
1275 if (err < 0)
1276 goto setup_fail;
1277 }
1278
1279 data->intf->needs_remote_wakeup = 1;
1280
1281 /* Disable device remote wakeup when host is suspended
1282 * For Realtek chips, global suspend without
1283 * SET_FEATURE (DEVICE_REMOTE_WAKEUP) can save more power in device.
1284 */
1285 if (test_bit(BTUSB_WAKEUP_DISABLE, &data->flags))
1286 device_wakeup_disable(&data->udev->dev);
1287
1288 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
1289 goto done;
1290
1291 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
1292 if (err < 0)
1293 goto failed;
1294
1295 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1296 if (err < 0) {
1297 usb_kill_anchored_urbs(&data->intr_anchor);
1298 goto failed;
1299 }
1300
1301 set_bit(BTUSB_BULK_RUNNING, &data->flags);
1302 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1303
1304 if (data->diag) {
1305 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL))
1306 set_bit(BTUSB_DIAG_RUNNING, &data->flags);
1307 }
1308
1309done:
1310 usb_autopm_put_interface(data->intf);
1311 return 0;
1312
1313failed:
1314 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1315setup_fail:
1316 usb_autopm_put_interface(data->intf);
1317 return err;
1318}
1319
1320static void btusb_stop_traffic(struct btusb_data *data)
1321{
1322 usb_kill_anchored_urbs(&data->intr_anchor);
1323 usb_kill_anchored_urbs(&data->bulk_anchor);
1324 usb_kill_anchored_urbs(&data->isoc_anchor);
1325 usb_kill_anchored_urbs(&data->diag_anchor);
1326 usb_kill_anchored_urbs(&data->ctrl_anchor);
1327}
1328
1329static int btusb_close(struct hci_dev *hdev)
1330{
1331 struct btusb_data *data = hci_get_drvdata(hdev);
1332 int err;
1333
1334 BT_DBG("%s", hdev->name);
1335
1336 cancel_work_sync(&data->work);
1337 cancel_work_sync(&data->waker);
1338
1339 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1340 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1341 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1342 clear_bit(BTUSB_DIAG_RUNNING, &data->flags);
1343
1344 btusb_stop_traffic(data);
1345 btusb_free_frags(data);
1346
1347 err = usb_autopm_get_interface(data->intf);
1348 if (err < 0)
1349 goto failed;
1350
1351 data->intf->needs_remote_wakeup = 0;
1352
1353 /* Enable remote wake up for auto-suspend */
1354 if (test_bit(BTUSB_WAKEUP_DISABLE, &data->flags))
1355 data->intf->needs_remote_wakeup = 1;
1356
1357 usb_autopm_put_interface(data->intf);
1358
1359failed:
1360 usb_scuttle_anchored_urbs(&data->deferred);
1361 return 0;
1362}
1363
1364static int btusb_flush(struct hci_dev *hdev)
1365{
1366 struct btusb_data *data = hci_get_drvdata(hdev);
1367
1368 BT_DBG("%s", hdev->name);
1369
1370 usb_kill_anchored_urbs(&data->tx_anchor);
1371 btusb_free_frags(data);
1372
1373 return 0;
1374}
1375
1376static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
1377{
1378 struct btusb_data *data = hci_get_drvdata(hdev);
1379 struct usb_ctrlrequest *dr;
1380 struct urb *urb;
1381 unsigned int pipe;
1382
1383 urb = usb_alloc_urb(0, GFP_KERNEL);
1384 if (!urb)
1385 return ERR_PTR(-ENOMEM);
1386
1387 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
1388 if (!dr) {
1389 usb_free_urb(urb);
1390 return ERR_PTR(-ENOMEM);
1391 }
1392
1393 dr->bRequestType = data->cmdreq_type;
1394 dr->bRequest = data->cmdreq;
1395 dr->wIndex = 0;
1396 dr->wValue = 0;
1397 dr->wLength = __cpu_to_le16(skb->len);
1398
1399 pipe = usb_sndctrlpipe(data->udev, 0x00);
1400
1401 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
1402 skb->data, skb->len, btusb_tx_complete, skb);
1403
1404 skb->dev = (void *)hdev;
1405
1406 return urb;
1407}
1408
1409static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
1410{
1411 struct btusb_data *data = hci_get_drvdata(hdev);
1412 struct urb *urb;
1413 unsigned int pipe;
1414
1415 if (!data->bulk_tx_ep)
1416 return ERR_PTR(-ENODEV);
1417
1418 urb = usb_alloc_urb(0, GFP_KERNEL);
1419 if (!urb)
1420 return ERR_PTR(-ENOMEM);
1421
1422 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
1423
1424 usb_fill_bulk_urb(urb, data->udev, pipe,
1425 skb->data, skb->len, btusb_tx_complete, skb);
1426
1427 skb->dev = (void *)hdev;
1428
1429 return urb;
1430}
1431
1432static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
1433{
1434 struct btusb_data *data = hci_get_drvdata(hdev);
1435 struct urb *urb;
1436 unsigned int pipe;
1437
1438 if (!data->isoc_tx_ep)
1439 return ERR_PTR(-ENODEV);
1440
1441 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
1442 if (!urb)
1443 return ERR_PTR(-ENOMEM);
1444
1445 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
1446
1447 usb_fill_int_urb(urb, data->udev, pipe,
1448 skb->data, skb->len, btusb_isoc_tx_complete,
1449 skb, data->isoc_tx_ep->bInterval);
1450
1451 urb->transfer_flags = URB_ISO_ASAP;
1452
1453 if (data->isoc_altsetting == 6)
1454 __fill_isoc_descriptor_msbc(urb, skb->len,
1455 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize),
1456 data);
1457 else
1458 __fill_isoc_descriptor(urb, skb->len,
1459 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
1460 skb->dev = (void *)hdev;
1461
1462 return urb;
1463}
1464
1465static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
1466{
1467 struct btusb_data *data = hci_get_drvdata(hdev);
1468 int err;
1469
1470 usb_anchor_urb(urb, &data->tx_anchor);
1471
1472 err = usb_submit_urb(urb, GFP_KERNEL);
1473 if (err < 0) {
1474 if (err != -EPERM && err != -ENODEV)
1475 bt_dev_err(hdev, "urb %p submission failed (%d)",
1476 urb, -err);
1477 kfree(urb->setup_packet);
1478 usb_unanchor_urb(urb);
1479 } else {
1480 usb_mark_last_busy(data->udev);
1481 }
1482
1483 usb_free_urb(urb);
1484 return err;
1485}
1486
1487static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
1488{
1489 struct btusb_data *data = hci_get_drvdata(hdev);
1490 unsigned long flags;
1491 bool suspending;
1492
1493 spin_lock_irqsave(&data->txlock, flags);
1494 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
1495 if (!suspending)
1496 data->tx_in_flight++;
1497 spin_unlock_irqrestore(&data->txlock, flags);
1498
1499 if (!suspending)
1500 return submit_tx_urb(hdev, urb);
1501
1502 usb_anchor_urb(urb, &data->deferred);
1503 schedule_work(&data->waker);
1504
1505 usb_free_urb(urb);
1506 return 0;
1507}
1508
1509static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
1510{
1511 struct urb *urb;
1512
1513 BT_DBG("%s", hdev->name);
1514
1515 switch (hci_skb_pkt_type(skb)) {
1516 case HCI_COMMAND_PKT:
1517 urb = alloc_ctrl_urb(hdev, skb);
1518 if (IS_ERR(urb))
1519 return PTR_ERR(urb);
1520
1521 hdev->stat.cmd_tx++;
1522 return submit_or_queue_tx_urb(hdev, urb);
1523
1524 case HCI_ACLDATA_PKT:
1525 urb = alloc_bulk_urb(hdev, skb);
1526 if (IS_ERR(urb))
1527 return PTR_ERR(urb);
1528
1529 hdev->stat.acl_tx++;
1530 return submit_or_queue_tx_urb(hdev, urb);
1531
1532 case HCI_SCODATA_PKT:
1533 if (hci_conn_num(hdev, SCO_LINK) < 1)
1534 return -ENODEV;
1535
1536 urb = alloc_isoc_urb(hdev, skb);
1537 if (IS_ERR(urb))
1538 return PTR_ERR(urb);
1539
1540 hdev->stat.sco_tx++;
1541 return submit_tx_urb(hdev, urb);
1542 }
1543
1544 return -EILSEQ;
1545}
1546
1547static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
1548{
1549 struct btusb_data *data = hci_get_drvdata(hdev);
1550
1551 BT_DBG("%s evt %d", hdev->name, evt);
1552
1553 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
1554 data->sco_num = hci_conn_num(hdev, SCO_LINK);
1555 data->air_mode = evt;
1556 schedule_work(&data->work);
1557 }
1558}
1559
1560static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
1561{
1562 struct btusb_data *data = hci_get_drvdata(hdev);
1563 struct usb_interface *intf = data->isoc;
1564 struct usb_endpoint_descriptor *ep_desc;
1565 int i, err;
1566
1567 if (!data->isoc)
1568 return -ENODEV;
1569
1570 err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting);
1571 if (err < 0) {
1572 bt_dev_err(hdev, "setting interface failed (%d)", -err);
1573 return err;
1574 }
1575
1576 data->isoc_altsetting = altsetting;
1577
1578 data->isoc_tx_ep = NULL;
1579 data->isoc_rx_ep = NULL;
1580
1581 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1582 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1583
1584 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
1585 data->isoc_tx_ep = ep_desc;
1586 continue;
1587 }
1588
1589 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
1590 data->isoc_rx_ep = ep_desc;
1591 continue;
1592 }
1593 }
1594
1595 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
1596 bt_dev_err(hdev, "invalid SCO descriptors");
1597 return -ENODEV;
1598 }
1599
1600 return 0;
1601}
1602
1603static int btusb_switch_alt_setting(struct hci_dev *hdev, int new_alts)
1604{
1605 struct btusb_data *data = hci_get_drvdata(hdev);
1606 int err;
1607
1608 if (data->isoc_altsetting != new_alts) {
1609 unsigned long flags;
1610
1611 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1612 usb_kill_anchored_urbs(&data->isoc_anchor);
1613
1614 /* When isochronous alternate setting needs to be
1615 * changed, because SCO connection has been added
1616 * or removed, a packet fragment may be left in the
1617 * reassembling state. This could lead to wrongly
1618 * assembled fragments.
1619 *
1620 * Clear outstanding fragment when selecting a new
1621 * alternate setting.
1622 */
1623 spin_lock_irqsave(&data->rxlock, flags);
1624 kfree_skb(data->sco_skb);
1625 data->sco_skb = NULL;
1626 spin_unlock_irqrestore(&data->rxlock, flags);
1627
1628 err = __set_isoc_interface(hdev, new_alts);
1629 if (err < 0)
1630 return err;
1631 }
1632
1633 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1634 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
1635 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1636 else
1637 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
1638 }
1639
1640 return 0;
1641}
1642
1643static struct usb_host_interface *btusb_find_altsetting(struct btusb_data *data,
1644 int alt)
1645{
1646 struct usb_interface *intf = data->isoc;
1647 int i;
1648
1649 BT_DBG("Looking for Alt no :%d", alt);
1650
1651 if (!intf)
1652 return NULL;
1653
1654 for (i = 0; i < intf->num_altsetting; i++) {
1655 if (intf->altsetting[i].desc.bAlternateSetting == alt)
1656 return &intf->altsetting[i];
1657 }
1658
1659 return NULL;
1660}
1661
1662static void btusb_work(struct work_struct *work)
1663{
1664 struct btusb_data *data = container_of(work, struct btusb_data, work);
1665 struct hci_dev *hdev = data->hdev;
1666 int new_alts = 0;
1667 int err;
1668
1669 if (data->sco_num > 0) {
1670 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
1671 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
1672 if (err < 0) {
1673 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1674 usb_kill_anchored_urbs(&data->isoc_anchor);
1675 return;
1676 }
1677
1678 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
1679 }
1680
1681 if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_CVSD) {
1682 if (hdev->voice_setting & 0x0020) {
1683 static const int alts[3] = { 2, 4, 5 };
1684
1685 new_alts = alts[data->sco_num - 1];
1686 } else {
1687 new_alts = data->sco_num;
1688 }
1689 } else if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_TRANSP) {
1690 /* Check if Alt 6 is supported for Transparent audio */
1691 if (btusb_find_altsetting(data, 6)) {
1692 data->usb_alt6_packet_flow = true;
1693 new_alts = 6;
1694 } else if (test_bit(BTUSB_USE_ALT1_FOR_WBS, &data->flags)) {
1695 new_alts = 1;
1696 } else {
1697 bt_dev_err(hdev, "Device does not support ALT setting 6");
1698 }
1699 }
1700
1701 if (btusb_switch_alt_setting(hdev, new_alts) < 0)
1702 bt_dev_err(hdev, "set USB alt:(%d) failed!", new_alts);
1703 } else {
1704 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1705 usb_kill_anchored_urbs(&data->isoc_anchor);
1706
1707 __set_isoc_interface(hdev, 0);
1708 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
1709 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
1710 }
1711}
1712
1713static void btusb_waker(struct work_struct *work)
1714{
1715 struct btusb_data *data = container_of(work, struct btusb_data, waker);
1716 int err;
1717
1718 err = usb_autopm_get_interface(data->intf);
1719 if (err < 0)
1720 return;
1721
1722 usb_autopm_put_interface(data->intf);
1723}
1724
1725static int btusb_setup_bcm92035(struct hci_dev *hdev)
1726{
1727 struct sk_buff *skb;
1728 u8 val = 0x00;
1729
1730 BT_DBG("%s", hdev->name);
1731
1732 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
1733 if (IS_ERR(skb))
1734 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb));
1735 else
1736 kfree_skb(skb);
1737
1738 return 0;
1739}
1740
1741static int btusb_setup_csr(struct hci_dev *hdev)
1742{
1743 struct hci_rp_read_local_version *rp;
1744 struct sk_buff *skb;
1745 bool is_fake = false;
1746
1747 BT_DBG("%s", hdev->name);
1748
1749 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1750 HCI_INIT_TIMEOUT);
1751 if (IS_ERR(skb)) {
1752 int err = PTR_ERR(skb);
1753 bt_dev_err(hdev, "CSR: Local version failed (%d)", err);
1754 return err;
1755 }
1756
1757 if (skb->len != sizeof(struct hci_rp_read_local_version)) {
1758 bt_dev_err(hdev, "CSR: Local version length mismatch");
1759 kfree_skb(skb);
1760 return -EIO;
1761 }
1762
1763 rp = (struct hci_rp_read_local_version *)skb->data;
1764
1765 /* Detect a wide host of Chinese controllers that aren't CSR.
1766 *
1767 * Known fake bcdDevices: 0x0100, 0x0134, 0x1915, 0x2520, 0x7558, 0x8891
1768 *
1769 * The main thing they have in common is that these are really popular low-cost
1770 * options that support newer Bluetooth versions but rely on heavy VID/PID
1771 * squatting of this poor old Bluetooth 1.1 device. Even sold as such.
1772 *
1773 * We detect actual CSR devices by checking that the HCI manufacturer code
1774 * is Cambridge Silicon Radio (10) and ensuring that LMP sub-version and
1775 * HCI rev values always match. As they both store the firmware number.
1776 */
1777 if (le16_to_cpu(rp->manufacturer) != 10 ||
1778 le16_to_cpu(rp->hci_rev) != le16_to_cpu(rp->lmp_subver))
1779 is_fake = true;
1780
1781 /* Known legit CSR firmware build numbers and their supported BT versions:
1782 * - 1.1 (0x1) -> 0x0073, 0x020d, 0x033c, 0x034e
1783 * - 1.2 (0x2) -> 0x04d9, 0x0529
1784 * - 2.0 (0x3) -> 0x07a6, 0x07ad, 0x0c5c
1785 * - 2.1 (0x4) -> 0x149c, 0x1735, 0x1899 (0x1899 is a BlueCore4-External)
1786 * - 4.0 (0x6) -> 0x1d86, 0x2031, 0x22bb
1787 *
1788 * e.g. Real CSR dongles with LMP subversion 0x73 are old enough that
1789 * support BT 1.1 only; so it's a dead giveaway when some
1790 * third-party BT 4.0 dongle reuses it.
1791 */
1792 else if (le16_to_cpu(rp->lmp_subver) <= 0x034e &&
1793 le16_to_cpu(rp->hci_ver) > BLUETOOTH_VER_1_1)
1794 is_fake = true;
1795
1796 else if (le16_to_cpu(rp->lmp_subver) <= 0x0529 &&
1797 le16_to_cpu(rp->hci_ver) > BLUETOOTH_VER_1_2)
1798 is_fake = true;
1799
1800 else if (le16_to_cpu(rp->lmp_subver) <= 0x0c5c &&
1801 le16_to_cpu(rp->hci_ver) > BLUETOOTH_VER_2_0)
1802 is_fake = true;
1803
1804 else if (le16_to_cpu(rp->lmp_subver) <= 0x1899 &&
1805 le16_to_cpu(rp->hci_ver) > BLUETOOTH_VER_2_1)
1806 is_fake = true;
1807
1808 else if (le16_to_cpu(rp->lmp_subver) <= 0x22bb &&
1809 le16_to_cpu(rp->hci_ver) > BLUETOOTH_VER_4_0)
1810 is_fake = true;
1811
1812 if (is_fake) {
1813 bt_dev_warn(hdev, "CSR: Unbranded CSR clone detected; adding workarounds...");
1814
1815 /* Generally these clones have big discrepancies between
1816 * advertised features and what's actually supported.
1817 * Probably will need to be expanded in the future;
1818 * without these the controller will lock up.
1819 */
1820 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
1821 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks);
1822
1823 /* Clear the reset quirk since this is not an actual
1824 * early Bluetooth 1.1 device from CSR.
1825 */
1826 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1827 clear_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
1828 }
1829
1830 kfree_skb(skb);
1831
1832 return 0;
1833}
1834
1835static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev,
1836 struct intel_version *ver)
1837{
1838 const struct firmware *fw;
1839 char fwname[64];
1840 int ret;
1841
1842 snprintf(fwname, sizeof(fwname),
1843 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq",
1844 ver->hw_platform, ver->hw_variant, ver->hw_revision,
1845 ver->fw_variant, ver->fw_revision, ver->fw_build_num,
1846 ver->fw_build_ww, ver->fw_build_yy);
1847
1848 ret = request_firmware(&fw, fwname, &hdev->dev);
1849 if (ret < 0) {
1850 if (ret == -EINVAL) {
1851 bt_dev_err(hdev, "Intel firmware file request failed (%d)",
1852 ret);
1853 return NULL;
1854 }
1855
1856 bt_dev_err(hdev, "failed to open Intel firmware file: %s (%d)",
1857 fwname, ret);
1858
1859 /* If the correct firmware patch file is not found, use the
1860 * default firmware patch file instead
1861 */
1862 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq",
1863 ver->hw_platform, ver->hw_variant);
1864 if (request_firmware(&fw, fwname, &hdev->dev) < 0) {
1865 bt_dev_err(hdev, "failed to open default fw file: %s",
1866 fwname);
1867 return NULL;
1868 }
1869 }
1870
1871 bt_dev_info(hdev, "Intel Bluetooth firmware file: %s", fwname);
1872
1873 return fw;
1874}
1875
1876static int btusb_setup_intel_patching(struct hci_dev *hdev,
1877 const struct firmware *fw,
1878 const u8 **fw_ptr, int *disable_patch)
1879{
1880 struct sk_buff *skb;
1881 struct hci_command_hdr *cmd;
1882 const u8 *cmd_param;
1883 struct hci_event_hdr *evt = NULL;
1884 const u8 *evt_param = NULL;
1885 int remain = fw->size - (*fw_ptr - fw->data);
1886
1887 /* The first byte indicates the types of the patch command or event.
1888 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes
1889 * in the current firmware buffer doesn't start with 0x01 or
1890 * the size of remain buffer is smaller than HCI command header,
1891 * the firmware file is corrupted and it should stop the patching
1892 * process.
1893 */
1894 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) {
1895 bt_dev_err(hdev, "Intel fw corrupted: invalid cmd read");
1896 return -EINVAL;
1897 }
1898 (*fw_ptr)++;
1899 remain--;
1900
1901 cmd = (struct hci_command_hdr *)(*fw_ptr);
1902 *fw_ptr += sizeof(*cmd);
1903 remain -= sizeof(*cmd);
1904
1905 /* Ensure that the remain firmware data is long enough than the length
1906 * of command parameter. If not, the firmware file is corrupted.
1907 */
1908 if (remain < cmd->plen) {
1909 bt_dev_err(hdev, "Intel fw corrupted: invalid cmd len");
1910 return -EFAULT;
1911 }
1912
1913 /* If there is a command that loads a patch in the firmware
1914 * file, then enable the patch upon success, otherwise just
1915 * disable the manufacturer mode, for example patch activation
1916 * is not required when the default firmware patch file is used
1917 * because there are no patch data to load.
1918 */
1919 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e)
1920 *disable_patch = 0;
1921
1922 cmd_param = *fw_ptr;
1923 *fw_ptr += cmd->plen;
1924 remain -= cmd->plen;
1925
1926 /* This reads the expected events when the above command is sent to the
1927 * device. Some vendor commands expects more than one events, for
1928 * example command status event followed by vendor specific event.
1929 * For this case, it only keeps the last expected event. so the command
1930 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of
1931 * last expected event.
1932 */
1933 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) {
1934 (*fw_ptr)++;
1935 remain--;
1936
1937 evt = (struct hci_event_hdr *)(*fw_ptr);
1938 *fw_ptr += sizeof(*evt);
1939 remain -= sizeof(*evt);
1940
1941 if (remain < evt->plen) {
1942 bt_dev_err(hdev, "Intel fw corrupted: invalid evt len");
1943 return -EFAULT;
1944 }
1945
1946 evt_param = *fw_ptr;
1947 *fw_ptr += evt->plen;
1948 remain -= evt->plen;
1949 }
1950
1951 /* Every HCI commands in the firmware file has its correspond event.
1952 * If event is not found or remain is smaller than zero, the firmware
1953 * file is corrupted.
1954 */
1955 if (!evt || !evt_param || remain < 0) {
1956 bt_dev_err(hdev, "Intel fw corrupted: invalid evt read");
1957 return -EFAULT;
1958 }
1959
1960 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen,
1961 cmd_param, evt->evt, HCI_INIT_TIMEOUT);
1962 if (IS_ERR(skb)) {
1963 bt_dev_err(hdev, "sending Intel patch command (0x%4.4x) failed (%ld)",
1964 cmd->opcode, PTR_ERR(skb));
1965 return PTR_ERR(skb);
1966 }
1967
1968 /* It ensures that the returned event matches the event data read from
1969 * the firmware file. At fist, it checks the length and then
1970 * the contents of the event.
1971 */
1972 if (skb->len != evt->plen) {
1973 bt_dev_err(hdev, "mismatch event length (opcode 0x%4.4x)",
1974 le16_to_cpu(cmd->opcode));
1975 kfree_skb(skb);
1976 return -EFAULT;
1977 }
1978
1979 if (memcmp(skb->data, evt_param, evt->plen)) {
1980 bt_dev_err(hdev, "mismatch event parameter (opcode 0x%4.4x)",
1981 le16_to_cpu(cmd->opcode));
1982 kfree_skb(skb);
1983 return -EFAULT;
1984 }
1985 kfree_skb(skb);
1986
1987 return 0;
1988}
1989
1990static int btusb_setup_intel(struct hci_dev *hdev)
1991{
1992 struct sk_buff *skb;
1993 const struct firmware *fw;
1994 const u8 *fw_ptr;
1995 int disable_patch, err;
1996 struct intel_version ver;
1997
1998 BT_DBG("%s", hdev->name);
1999
2000 /* The controller has a bug with the first HCI command sent to it
2001 * returning number of completed commands as zero. This would stall the
2002 * command processing in the Bluetooth core.
2003 *
2004 * As a workaround, send HCI Reset command first which will reset the
2005 * number of completed commands and allow normal command processing
2006 * from now on.
2007 */
2008 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
2009 if (IS_ERR(skb)) {
2010 bt_dev_err(hdev, "sending initial HCI reset command failed (%ld)",
2011 PTR_ERR(skb));
2012 return PTR_ERR(skb);
2013 }
2014 kfree_skb(skb);
2015
2016 /* Read Intel specific controller version first to allow selection of
2017 * which firmware file to load.
2018 *
2019 * The returned information are hardware variant and revision plus
2020 * firmware variant, revision and build number.
2021 */
2022 err = btintel_read_version(hdev, &ver);
2023 if (err)
2024 return err;
2025
2026 bt_dev_info(hdev, "read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
2027 ver.hw_platform, ver.hw_variant, ver.hw_revision,
2028 ver.fw_variant, ver.fw_revision, ver.fw_build_num,
2029 ver.fw_build_ww, ver.fw_build_yy, ver.fw_patch_num);
2030
2031 /* fw_patch_num indicates the version of patch the device currently
2032 * have. If there is no patch data in the device, it is always 0x00.
2033 * So, if it is other than 0x00, no need to patch the device again.
2034 */
2035 if (ver.fw_patch_num) {
2036 bt_dev_info(hdev, "Intel device is already patched. "
2037 "patch num: %02x", ver.fw_patch_num);
2038 goto complete;
2039 }
2040
2041 /* Opens the firmware patch file based on the firmware version read
2042 * from the controller. If it fails to open the matching firmware
2043 * patch file, it tries to open the default firmware patch file.
2044 * If no patch file is found, allow the device to operate without
2045 * a patch.
2046 */
2047 fw = btusb_setup_intel_get_fw(hdev, &ver);
2048 if (!fw)
2049 goto complete;
2050 fw_ptr = fw->data;
2051
2052 /* Enable the manufacturer mode of the controller.
2053 * Only while this mode is enabled, the driver can download the
2054 * firmware patch data and configuration parameters.
2055 */
2056 err = btintel_enter_mfg(hdev);
2057 if (err) {
2058 release_firmware(fw);
2059 return err;
2060 }
2061
2062 disable_patch = 1;
2063
2064 /* The firmware data file consists of list of Intel specific HCI
2065 * commands and its expected events. The first byte indicates the
2066 * type of the message, either HCI command or HCI event.
2067 *
2068 * It reads the command and its expected event from the firmware file,
2069 * and send to the controller. Once __hci_cmd_sync_ev() returns,
2070 * the returned event is compared with the event read from the firmware
2071 * file and it will continue until all the messages are downloaded to
2072 * the controller.
2073 *
2074 * Once the firmware patching is completed successfully,
2075 * the manufacturer mode is disabled with reset and activating the
2076 * downloaded patch.
2077 *
2078 * If the firmware patching fails, the manufacturer mode is
2079 * disabled with reset and deactivating the patch.
2080 *
2081 * If the default patch file is used, no reset is done when disabling
2082 * the manufacturer.
2083 */
2084 while (fw->size > fw_ptr - fw->data) {
2085 int ret;
2086
2087 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr,
2088 &disable_patch);
2089 if (ret < 0)
2090 goto exit_mfg_deactivate;
2091 }
2092
2093 release_firmware(fw);
2094
2095 if (disable_patch)
2096 goto exit_mfg_disable;
2097
2098 /* Patching completed successfully and disable the manufacturer mode
2099 * with reset and activate the downloaded firmware patches.
2100 */
2101 err = btintel_exit_mfg(hdev, true, true);
2102 if (err)
2103 return err;
2104
2105 /* Need build number for downloaded fw patches in
2106 * every power-on boot
2107 */
2108 err = btintel_read_version(hdev, &ver);
2109 if (err)
2110 return err;
2111 bt_dev_info(hdev, "Intel BT fw patch 0x%02x completed & activated",
2112 ver.fw_patch_num);
2113
2114 goto complete;
2115
2116exit_mfg_disable:
2117 /* Disable the manufacturer mode without reset */
2118 err = btintel_exit_mfg(hdev, false, false);
2119 if (err)
2120 return err;
2121
2122 bt_dev_info(hdev, "Intel firmware patch completed");
2123
2124 goto complete;
2125
2126exit_mfg_deactivate:
2127 release_firmware(fw);
2128
2129 /* Patching failed. Disable the manufacturer mode with reset and
2130 * deactivate the downloaded firmware patches.
2131 */
2132 err = btintel_exit_mfg(hdev, true, false);
2133 if (err)
2134 return err;
2135
2136 bt_dev_info(hdev, "Intel firmware patch completed and deactivated");
2137
2138complete:
2139 /* Set the event mask for Intel specific vendor events. This enables
2140 * a few extra events that are useful during general operation.
2141 */
2142 btintel_set_event_mask_mfg(hdev, false);
2143
2144 btintel_check_bdaddr(hdev);
2145 return 0;
2146}
2147
2148static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
2149{
2150 struct sk_buff *skb;
2151 struct hci_event_hdr *hdr;
2152 struct hci_ev_cmd_complete *evt;
2153
2154 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL);
2155 if (!skb)
2156 return -ENOMEM;
2157
2158 hdr = skb_put(skb, sizeof(*hdr));
2159 hdr->evt = HCI_EV_CMD_COMPLETE;
2160 hdr->plen = sizeof(*evt) + 1;
2161
2162 evt = skb_put(skb, sizeof(*evt));
2163 evt->ncmd = 0x01;
2164 evt->opcode = cpu_to_le16(opcode);
2165
2166 skb_put_u8(skb, 0x00);
2167
2168 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
2169
2170 return hci_recv_frame(hdev, skb);
2171}
2172
2173static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
2174 int count)
2175{
2176 /* When the device is in bootloader mode, then it can send
2177 * events via the bulk endpoint. These events are treated the
2178 * same way as the ones received from the interrupt endpoint.
2179 */
2180 if (test_bit(BTUSB_BOOTLOADER, &data->flags))
2181 return btusb_recv_intr(data, buffer, count);
2182
2183 return btusb_recv_bulk(data, buffer, count);
2184}
2185
2186static void btusb_intel_bootup(struct btusb_data *data, const void *ptr,
2187 unsigned int len)
2188{
2189 const struct intel_bootup *evt = ptr;
2190
2191 if (len != sizeof(*evt))
2192 return;
2193
2194 if (test_and_clear_bit(BTUSB_BOOTING, &data->flags))
2195 wake_up_bit(&data->flags, BTUSB_BOOTING);
2196}
2197
2198static void btusb_intel_secure_send_result(struct btusb_data *data,
2199 const void *ptr, unsigned int len)
2200{
2201 const struct intel_secure_send_result *evt = ptr;
2202
2203 if (len != sizeof(*evt))
2204 return;
2205
2206 if (evt->result)
2207 set_bit(BTUSB_FIRMWARE_FAILED, &data->flags);
2208
2209 if (test_and_clear_bit(BTUSB_DOWNLOADING, &data->flags) &&
2210 test_bit(BTUSB_FIRMWARE_LOADED, &data->flags))
2211 wake_up_bit(&data->flags, BTUSB_DOWNLOADING);
2212}
2213
2214static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb)
2215{
2216 struct btusb_data *data = hci_get_drvdata(hdev);
2217
2218 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
2219 struct hci_event_hdr *hdr = (void *)skb->data;
2220
2221 if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff &&
2222 hdr->plen > 0) {
2223 const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1;
2224 unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1;
2225
2226 switch (skb->data[2]) {
2227 case 0x02:
2228 /* When switching to the operational firmware
2229 * the device sends a vendor specific event
2230 * indicating that the bootup completed.
2231 */
2232 btusb_intel_bootup(data, ptr, len);
2233 break;
2234 case 0x06:
2235 /* When the firmware loading completes the
2236 * device sends out a vendor specific event
2237 * indicating the result of the firmware
2238 * loading.
2239 */
2240 btusb_intel_secure_send_result(data, ptr, len);
2241 break;
2242 }
2243 }
2244 }
2245
2246 return hci_recv_frame(hdev, skb);
2247}
2248
2249static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
2250{
2251 struct btusb_data *data = hci_get_drvdata(hdev);
2252 struct urb *urb;
2253
2254 BT_DBG("%s", hdev->name);
2255
2256 switch (hci_skb_pkt_type(skb)) {
2257 case HCI_COMMAND_PKT:
2258 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
2259 struct hci_command_hdr *cmd = (void *)skb->data;
2260 __u16 opcode = le16_to_cpu(cmd->opcode);
2261
2262 /* When in bootloader mode and the command 0xfc09
2263 * is received, it needs to be send down the
2264 * bulk endpoint. So allocate a bulk URB instead.
2265 */
2266 if (opcode == 0xfc09)
2267 urb = alloc_bulk_urb(hdev, skb);
2268 else
2269 urb = alloc_ctrl_urb(hdev, skb);
2270
2271 /* When the 0xfc01 command is issued to boot into
2272 * the operational firmware, it will actually not
2273 * send a command complete event. To keep the flow
2274 * control working inject that event here.
2275 */
2276 if (opcode == 0xfc01)
2277 inject_cmd_complete(hdev, opcode);
2278 } else {
2279 urb = alloc_ctrl_urb(hdev, skb);
2280 }
2281 if (IS_ERR(urb))
2282 return PTR_ERR(urb);
2283
2284 hdev->stat.cmd_tx++;
2285 return submit_or_queue_tx_urb(hdev, urb);
2286
2287 case HCI_ACLDATA_PKT:
2288 urb = alloc_bulk_urb(hdev, skb);
2289 if (IS_ERR(urb))
2290 return PTR_ERR(urb);
2291
2292 hdev->stat.acl_tx++;
2293 return submit_or_queue_tx_urb(hdev, urb);
2294
2295 case HCI_SCODATA_PKT:
2296 if (hci_conn_num(hdev, SCO_LINK) < 1)
2297 return -ENODEV;
2298
2299 urb = alloc_isoc_urb(hdev, skb);
2300 if (IS_ERR(urb))
2301 return PTR_ERR(urb);
2302
2303 hdev->stat.sco_tx++;
2304 return submit_tx_urb(hdev, urb);
2305 }
2306
2307 return -EILSEQ;
2308}
2309
2310static bool btusb_setup_intel_new_get_fw_name(struct intel_version *ver,
2311 struct intel_boot_params *params,
2312 char *fw_name, size_t len,
2313 const char *suffix)
2314{
2315 switch (ver->hw_variant) {
2316 case 0x0b: /* SfP */
2317 case 0x0c: /* WsP */
2318 snprintf(fw_name, len, "intel/ibt-%u-%u.%s",
2319 le16_to_cpu(ver->hw_variant),
2320 le16_to_cpu(params->dev_revid),
2321 suffix);
2322 break;
2323 case 0x11: /* JfP */
2324 case 0x12: /* ThP */
2325 case 0x13: /* HrP */
2326 case 0x14: /* CcP */
2327 snprintf(fw_name, len, "intel/ibt-%u-%u-%u.%s",
2328 le16_to_cpu(ver->hw_variant),
2329 le16_to_cpu(ver->hw_revision),
2330 le16_to_cpu(ver->fw_revision),
2331 suffix);
2332 break;
2333 default:
2334 return false;
2335 }
2336 return true;
2337}
2338
2339static int btusb_intel_download_firmware(struct hci_dev *hdev,
2340 struct intel_version *ver,
2341 struct intel_boot_params *params)
2342{
2343 const struct firmware *fw;
2344 u32 boot_param;
2345 char fwname[64];
2346 int err;
2347 struct btusb_data *data = hci_get_drvdata(hdev);
2348
2349 if (!ver || !params)
2350 return -EINVAL;
2351
2352 /* The hardware platform number has a fixed value of 0x37 and
2353 * for now only accept this single value.
2354 */
2355 if (ver->hw_platform != 0x37) {
2356 bt_dev_err(hdev, "Unsupported Intel hardware platform (%u)",
2357 ver->hw_platform);
2358 return -EINVAL;
2359 }
2360
2361 /* Check for supported iBT hardware variants of this firmware
2362 * loading method.
2363 *
2364 * This check has been put in place to ensure correct forward
2365 * compatibility options when newer hardware variants come along.
2366 */
2367 switch (ver->hw_variant) {
2368 case 0x0b: /* SfP */
2369 case 0x0c: /* WsP */
2370 case 0x11: /* JfP */
2371 case 0x12: /* ThP */
2372 case 0x13: /* HrP */
2373 case 0x14: /* CcP */
2374 break;
2375 default:
2376 bt_dev_err(hdev, "Unsupported Intel hardware variant (%u)",
2377 ver->hw_variant);
2378 return -EINVAL;
2379 }
2380
2381 btintel_version_info(hdev, ver);
2382
2383 /* The firmware variant determines if the device is in bootloader
2384 * mode or is running operational firmware. The value 0x06 identifies
2385 * the bootloader and the value 0x23 identifies the operational
2386 * firmware.
2387 *
2388 * When the operational firmware is already present, then only
2389 * the check for valid Bluetooth device address is needed. This
2390 * determines if the device will be added as configured or
2391 * unconfigured controller.
2392 *
2393 * It is not possible to use the Secure Boot Parameters in this
2394 * case since that command is only available in bootloader mode.
2395 */
2396 if (ver->fw_variant == 0x23) {
2397 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2398 btintel_check_bdaddr(hdev);
2399 return 0;
2400 }
2401
2402 /* If the device is not in bootloader mode, then the only possible
2403 * choice is to return an error and abort the device initialization.
2404 */
2405 if (ver->fw_variant != 0x06) {
2406 bt_dev_err(hdev, "Unsupported Intel firmware variant (%u)",
2407 ver->fw_variant);
2408 return -ENODEV;
2409 }
2410
2411 /* Read the secure boot parameters to identify the operating
2412 * details of the bootloader.
2413 */
2414 err = btintel_read_boot_params(hdev, params);
2415 if (err)
2416 return err;
2417
2418 /* It is required that every single firmware fragment is acknowledged
2419 * with a command complete event. If the boot parameters indicate
2420 * that this bootloader does not send them, then abort the setup.
2421 */
2422 if (params->limited_cce != 0x00) {
2423 bt_dev_err(hdev, "Unsupported Intel firmware loading method (%u)",
2424 params->limited_cce);
2425 return -EINVAL;
2426 }
2427
2428 /* If the OTP has no valid Bluetooth device address, then there will
2429 * also be no valid address for the operational firmware.
2430 */
2431 if (!bacmp(¶ms->otp_bdaddr, BDADDR_ANY)) {
2432 bt_dev_info(hdev, "No device address configured");
2433 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
2434 }
2435
2436 /* With this Intel bootloader only the hardware variant and device
2437 * revision information are used to select the right firmware for SfP
2438 * and WsP.
2439 *
2440 * The firmware filename is ibt-<hw_variant>-<dev_revid>.sfi.
2441 *
2442 * Currently the supported hardware variants are:
2443 * 11 (0x0b) for iBT3.0 (LnP/SfP)
2444 * 12 (0x0c) for iBT3.5 (WsP)
2445 *
2446 * For ThP/JfP and for future SKU's, the FW name varies based on HW
2447 * variant, HW revision and FW revision, as these are dependent on CNVi
2448 * and RF Combination.
2449 *
2450 * 17 (0x11) for iBT3.5 (JfP)
2451 * 18 (0x12) for iBT3.5 (ThP)
2452 *
2453 * The firmware file name for these will be
2454 * ibt-<hw_variant>-<hw_revision>-<fw_revision>.sfi.
2455 *
2456 */
2457 err = btusb_setup_intel_new_get_fw_name(ver, params, fwname,
2458 sizeof(fwname), "sfi");
2459 if (!err) {
2460 bt_dev_err(hdev, "Unsupported Intel firmware naming");
2461 return -EINVAL;
2462 }
2463
2464 err = request_firmware(&fw, fwname, &hdev->dev);
2465 if (err < 0) {
2466 bt_dev_err(hdev, "Failed to load Intel firmware file (%d)", err);
2467 return err;
2468 }
2469
2470 bt_dev_info(hdev, "Found device firmware: %s", fwname);
2471
2472 if (fw->size < 644) {
2473 bt_dev_err(hdev, "Invalid size of firmware file (%zu)",
2474 fw->size);
2475 err = -EBADF;
2476 goto done;
2477 }
2478
2479 set_bit(BTUSB_DOWNLOADING, &data->flags);
2480
2481 /* Start firmware downloading and get boot parameter */
2482 err = btintel_download_firmware(hdev, fw, &boot_param);
2483 if (err < 0) {
2484 /* When FW download fails, send Intel Reset to retry
2485 * FW download.
2486 */
2487 btintel_reset_to_bootloader(hdev);
2488 goto done;
2489 }
2490 set_bit(BTUSB_FIRMWARE_LOADED, &data->flags);
2491
2492 bt_dev_info(hdev, "Waiting for firmware download to complete");
2493
2494 /* Before switching the device into operational mode and with that
2495 * booting the loaded firmware, wait for the bootloader notification
2496 * that all fragments have been successfully received.
2497 *
2498 * When the event processing receives the notification, then the
2499 * BTUSB_DOWNLOADING flag will be cleared.
2500 *
2501 * The firmware loading should not take longer than 5 seconds
2502 * and thus just timeout if that happens and fail the setup
2503 * of this device.
2504 */
2505 err = wait_on_bit_timeout(&data->flags, BTUSB_DOWNLOADING,
2506 TASK_INTERRUPTIBLE,
2507 msecs_to_jiffies(5000));
2508 if (err == -EINTR) {
2509 bt_dev_err(hdev, "Firmware loading interrupted");
2510 goto done;
2511 }
2512
2513 if (err) {
2514 bt_dev_err(hdev, "Firmware loading timeout");
2515 err = -ETIMEDOUT;
2516 btintel_reset_to_bootloader(hdev);
2517 goto done;
2518 }
2519
2520 if (test_bit(BTUSB_FIRMWARE_FAILED, &data->flags)) {
2521 bt_dev_err(hdev, "Firmware loading failed");
2522 err = -ENOEXEC;
2523 goto done;
2524 }
2525
2526done:
2527 release_firmware(fw);
2528 return err;
2529}
2530
2531static int btusb_setup_intel_new(struct hci_dev *hdev)
2532{
2533 struct btusb_data *data = hci_get_drvdata(hdev);
2534 struct intel_version ver;
2535 struct intel_boot_params params;
2536 u32 boot_param;
2537 char ddcname[64];
2538 ktime_t calltime, delta, rettime;
2539 unsigned long long duration;
2540 int err;
2541 struct intel_debug_features features;
2542
2543 BT_DBG("%s", hdev->name);
2544
2545 /* Set the default boot parameter to 0x0 and it is updated to
2546 * SKU specific boot parameter after reading Intel_Write_Boot_Params
2547 * command while downloading the firmware.
2548 */
2549 boot_param = 0x00000000;
2550
2551 calltime = ktime_get();
2552
2553 /* Read the Intel version information to determine if the device
2554 * is in bootloader mode or if it already has operational firmware
2555 * loaded.
2556 */
2557 err = btintel_read_version(hdev, &ver);
2558 if (err) {
2559 bt_dev_err(hdev, "Intel Read version failed (%d)", err);
2560 btintel_reset_to_bootloader(hdev);
2561 return err;
2562 }
2563
2564 err = btusb_intel_download_firmware(hdev, &ver, ¶ms);
2565 if (err)
2566 return err;
2567
2568 /* controller is already having an operational firmware */
2569 if (ver.fw_variant == 0x23)
2570 goto finish;
2571
2572 rettime = ktime_get();
2573 delta = ktime_sub(rettime, calltime);
2574 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2575
2576 bt_dev_info(hdev, "Firmware loaded in %llu usecs", duration);
2577
2578 calltime = ktime_get();
2579
2580 set_bit(BTUSB_BOOTING, &data->flags);
2581
2582 err = btintel_send_intel_reset(hdev, boot_param);
2583 if (err) {
2584 bt_dev_err(hdev, "Intel Soft Reset failed (%d)", err);
2585 btintel_reset_to_bootloader(hdev);
2586 return err;
2587 }
2588
2589 /* The bootloader will not indicate when the device is ready. This
2590 * is done by the operational firmware sending bootup notification.
2591 *
2592 * Booting into operational firmware should not take longer than
2593 * 1 second. However if that happens, then just fail the setup
2594 * since something went wrong.
2595 */
2596 bt_dev_info(hdev, "Waiting for device to boot");
2597
2598 err = wait_on_bit_timeout(&data->flags, BTUSB_BOOTING,
2599 TASK_INTERRUPTIBLE,
2600 msecs_to_jiffies(1000));
2601
2602 if (err == -EINTR) {
2603 bt_dev_err(hdev, "Device boot interrupted");
2604 return -EINTR;
2605 }
2606
2607 if (err) {
2608 bt_dev_err(hdev, "Device boot timeout");
2609 btintel_reset_to_bootloader(hdev);
2610 return -ETIMEDOUT;
2611 }
2612
2613 rettime = ktime_get();
2614 delta = ktime_sub(rettime, calltime);
2615 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2616
2617 bt_dev_info(hdev, "Device booted in %llu usecs", duration);
2618
2619 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2620
2621 err = btusb_setup_intel_new_get_fw_name(&ver, ¶ms, ddcname,
2622 sizeof(ddcname), "ddc");
2623
2624 if (!err) {
2625 bt_dev_err(hdev, "Unsupported Intel firmware naming");
2626 } else {
2627 /* Once the device is running in operational mode, it needs to
2628 * apply the device configuration (DDC) parameters.
2629 *
2630 * The device can work without DDC parameters, so even if it
2631 * fails to load the file, no need to fail the setup.
2632 */
2633 btintel_load_ddc_config(hdev, ddcname);
2634 }
2635
2636 /* Read the Intel supported features and if new exception formats
2637 * supported, need to load the additional DDC config to enable.
2638 */
2639 btintel_read_debug_features(hdev, &features);
2640
2641 /* Set DDC mask for available debug features */
2642 btintel_set_debug_features(hdev, &features);
2643
2644 /* Read the Intel version information after loading the FW */
2645 err = btintel_read_version(hdev, &ver);
2646 if (err)
2647 return err;
2648
2649 btintel_version_info(hdev, &ver);
2650
2651finish:
2652 /* All Intel controllers that support the Microsoft vendor
2653 * extension are using 0xFC1E for VsMsftOpCode.
2654 */
2655 switch (ver.hw_variant) {
2656 case 0x12: /* ThP */
2657 hci_set_msft_opcode(hdev, 0xFC1E);
2658 break;
2659 }
2660
2661 /* Set the event mask for Intel specific vendor events. This enables
2662 * a few extra events that are useful during general operation. It
2663 * does not enable any debugging related events.
2664 *
2665 * The device will function correctly without these events enabled
2666 * and thus no need to fail the setup.
2667 */
2668 btintel_set_event_mask(hdev, false);
2669
2670 return 0;
2671}
2672
2673static int btusb_shutdown_intel(struct hci_dev *hdev)
2674{
2675 struct sk_buff *skb;
2676 long ret;
2677
2678 /* In the shutdown sequence where Bluetooth is turned off followed
2679 * by WiFi being turned off, turning WiFi back on causes issue with
2680 * the RF calibration.
2681 *
2682 * To ensure that any RF activity has been stopped, issue HCI Reset
2683 * command to clear all ongoing activity including advertising,
2684 * scanning etc.
2685 */
2686 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
2687 if (IS_ERR(skb)) {
2688 ret = PTR_ERR(skb);
2689 bt_dev_err(hdev, "HCI reset during shutdown failed");
2690 return ret;
2691 }
2692 kfree_skb(skb);
2693
2694 /* Some platforms have an issue with BT LED when the interface is
2695 * down or BT radio is turned off, which takes 5 seconds to BT LED
2696 * goes off. This command turns off the BT LED immediately.
2697 */
2698 skb = __hci_cmd_sync(hdev, 0xfc3f, 0, NULL, HCI_INIT_TIMEOUT);
2699 if (IS_ERR(skb)) {
2700 ret = PTR_ERR(skb);
2701 bt_dev_err(hdev, "turning off Intel device LED failed");
2702 return ret;
2703 }
2704 kfree_skb(skb);
2705
2706 return 0;
2707}
2708
2709static int btusb_shutdown_intel_new(struct hci_dev *hdev)
2710{
2711 struct sk_buff *skb;
2712
2713 /* Send HCI Reset to the controller to stop any BT activity which
2714 * were triggered. This will help to save power and maintain the
2715 * sync b/w Host and controller
2716 */
2717 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
2718 if (IS_ERR(skb)) {
2719 bt_dev_err(hdev, "HCI reset during shutdown failed");
2720 return PTR_ERR(skb);
2721 }
2722 kfree_skb(skb);
2723
2724 return 0;
2725}
2726
2727#define FIRMWARE_MT7663 "mediatek/mt7663pr2h.bin"
2728#define FIRMWARE_MT7668 "mediatek/mt7668pr2h.bin"
2729
2730#define HCI_WMT_MAX_EVENT_SIZE 64
2731
2732enum {
2733 BTMTK_WMT_PATCH_DWNLD = 0x1,
2734 BTMTK_WMT_FUNC_CTRL = 0x6,
2735 BTMTK_WMT_RST = 0x7,
2736 BTMTK_WMT_SEMAPHORE = 0x17,
2737};
2738
2739enum {
2740 BTMTK_WMT_INVALID,
2741 BTMTK_WMT_PATCH_UNDONE,
2742 BTMTK_WMT_PATCH_DONE,
2743 BTMTK_WMT_ON_UNDONE,
2744 BTMTK_WMT_ON_DONE,
2745 BTMTK_WMT_ON_PROGRESS,
2746};
2747
2748struct btmtk_wmt_hdr {
2749 u8 dir;
2750 u8 op;
2751 __le16 dlen;
2752 u8 flag;
2753} __packed;
2754
2755struct btmtk_hci_wmt_cmd {
2756 struct btmtk_wmt_hdr hdr;
2757 u8 data[256];
2758} __packed;
2759
2760struct btmtk_hci_wmt_evt {
2761 struct hci_event_hdr hhdr;
2762 struct btmtk_wmt_hdr whdr;
2763} __packed;
2764
2765struct btmtk_hci_wmt_evt_funcc {
2766 struct btmtk_hci_wmt_evt hwhdr;
2767 __be16 status;
2768} __packed;
2769
2770struct btmtk_tci_sleep {
2771 u8 mode;
2772 __le16 duration;
2773 __le16 host_duration;
2774 u8 host_wakeup_pin;
2775 u8 time_compensation;
2776} __packed;
2777
2778struct btmtk_hci_wmt_params {
2779 u8 op;
2780 u8 flag;
2781 u16 dlen;
2782 const void *data;
2783 u32 *status;
2784};
2785
2786static void btusb_mtk_wmt_recv(struct urb *urb)
2787{
2788 struct hci_dev *hdev = urb->context;
2789 struct btusb_data *data = hci_get_drvdata(hdev);
2790 struct hci_event_hdr *hdr;
2791 struct sk_buff *skb;
2792 int err;
2793
2794 if (urb->status == 0 && urb->actual_length > 0) {
2795 hdev->stat.byte_rx += urb->actual_length;
2796
2797 /* WMT event shouldn't be fragmented and the size should be
2798 * less than HCI_WMT_MAX_EVENT_SIZE.
2799 */
2800 skb = bt_skb_alloc(HCI_WMT_MAX_EVENT_SIZE, GFP_ATOMIC);
2801 if (!skb) {
2802 hdev->stat.err_rx++;
2803 goto err_out;
2804 }
2805
2806 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
2807 skb_put_data(skb, urb->transfer_buffer, urb->actual_length);
2808
2809 hdr = (void *)skb->data;
2810 /* Fix up the vendor event id with 0xff for vendor specific
2811 * instead of 0xe4 so that event send via monitoring socket can
2812 * be parsed properly.
2813 */
2814 hdr->evt = 0xff;
2815
2816 /* When someone waits for the WMT event, the skb is being cloned
2817 * and being processed the events from there then.
2818 */
2819 if (test_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags)) {
2820 data->evt_skb = skb_clone(skb, GFP_ATOMIC);
2821 if (!data->evt_skb)
2822 goto err_out;
2823 }
2824
2825 err = hci_recv_frame(hdev, skb);
2826 if (err < 0)
2827 goto err_free_skb;
2828
2829 if (test_and_clear_bit(BTUSB_TX_WAIT_VND_EVT,
2830 &data->flags)) {
2831 /* Barrier to sync with other CPUs */
2832 smp_mb__after_atomic();
2833 wake_up_bit(&data->flags,
2834 BTUSB_TX_WAIT_VND_EVT);
2835 }
2836err_out:
2837 return;
2838err_free_skb:
2839 kfree_skb(data->evt_skb);
2840 data->evt_skb = NULL;
2841 return;
2842 } else if (urb->status == -ENOENT) {
2843 /* Avoid suspend failed when usb_kill_urb */
2844 return;
2845 }
2846
2847 usb_mark_last_busy(data->udev);
2848
2849 /* The URB complete handler is still called with urb->actual_length = 0
2850 * when the event is not available, so we should keep re-submitting
2851 * URB until WMT event returns, Also, It's necessary to wait some time
2852 * between the two consecutive control URBs to relax the target device
2853 * to generate the event. Otherwise, the WMT event cannot return from
2854 * the device successfully.
2855 */
2856 udelay(100);
2857
2858 usb_anchor_urb(urb, &data->ctrl_anchor);
2859 err = usb_submit_urb(urb, GFP_ATOMIC);
2860 if (err < 0) {
2861 /* -EPERM: urb is being killed;
2862 * -ENODEV: device got disconnected
2863 */
2864 if (err != -EPERM && err != -ENODEV)
2865 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
2866 urb, -err);
2867 usb_unanchor_urb(urb);
2868 }
2869}
2870
2871static int btusb_mtk_submit_wmt_recv_urb(struct hci_dev *hdev)
2872{
2873 struct btusb_data *data = hci_get_drvdata(hdev);
2874 struct usb_ctrlrequest *dr;
2875 unsigned char *buf;
2876 int err, size = 64;
2877 unsigned int pipe;
2878 struct urb *urb;
2879
2880 urb = usb_alloc_urb(0, GFP_KERNEL);
2881 if (!urb)
2882 return -ENOMEM;
2883
2884 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
2885 if (!dr) {
2886 usb_free_urb(urb);
2887 return -ENOMEM;
2888 }
2889
2890 dr->bRequestType = USB_TYPE_VENDOR | USB_DIR_IN;
2891 dr->bRequest = 1;
2892 dr->wIndex = cpu_to_le16(0);
2893 dr->wValue = cpu_to_le16(48);
2894 dr->wLength = cpu_to_le16(size);
2895
2896 buf = kmalloc(size, GFP_KERNEL);
2897 if (!buf) {
2898 kfree(dr);
2899 return -ENOMEM;
2900 }
2901
2902 pipe = usb_rcvctrlpipe(data->udev, 0);
2903
2904 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
2905 buf, size, btusb_mtk_wmt_recv, hdev);
2906
2907 urb->transfer_flags |= URB_FREE_BUFFER;
2908
2909 usb_anchor_urb(urb, &data->ctrl_anchor);
2910 err = usb_submit_urb(urb, GFP_KERNEL);
2911 if (err < 0) {
2912 if (err != -EPERM && err != -ENODEV)
2913 bt_dev_err(hdev, "urb %p submission failed (%d)",
2914 urb, -err);
2915 usb_unanchor_urb(urb);
2916 }
2917
2918 usb_free_urb(urb);
2919
2920 return err;
2921}
2922
2923static int btusb_mtk_hci_wmt_sync(struct hci_dev *hdev,
2924 struct btmtk_hci_wmt_params *wmt_params)
2925{
2926 struct btusb_data *data = hci_get_drvdata(hdev);
2927 struct btmtk_hci_wmt_evt_funcc *wmt_evt_funcc;
2928 u32 hlen, status = BTMTK_WMT_INVALID;
2929 struct btmtk_hci_wmt_evt *wmt_evt;
2930 struct btmtk_hci_wmt_cmd wc;
2931 struct btmtk_wmt_hdr *hdr;
2932 int err;
2933
2934 /* Submit control IN URB on demand to process the WMT event */
2935 err = btusb_mtk_submit_wmt_recv_urb(hdev);
2936 if (err < 0)
2937 return err;
2938
2939 /* Send the WMT command and wait until the WMT event returns */
2940 hlen = sizeof(*hdr) + wmt_params->dlen;
2941 if (hlen > 255)
2942 return -EINVAL;
2943
2944 hdr = (struct btmtk_wmt_hdr *)&wc;
2945 hdr->dir = 1;
2946 hdr->op = wmt_params->op;
2947 hdr->dlen = cpu_to_le16(wmt_params->dlen + 1);
2948 hdr->flag = wmt_params->flag;
2949 memcpy(wc.data, wmt_params->data, wmt_params->dlen);
2950
2951 set_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2952
2953 err = __hci_cmd_send(hdev, 0xfc6f, hlen, &wc);
2954
2955 if (err < 0) {
2956 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2957 return err;
2958 }
2959
2960 /* The vendor specific WMT commands are all answered by a vendor
2961 * specific event and will have the Command Status or Command
2962 * Complete as with usual HCI command flow control.
2963 *
2964 * After sending the command, wait for BTUSB_TX_WAIT_VND_EVT
2965 * state to be cleared. The driver specific event receive routine
2966 * will clear that state and with that indicate completion of the
2967 * WMT command.
2968 */
2969 err = wait_on_bit_timeout(&data->flags, BTUSB_TX_WAIT_VND_EVT,
2970 TASK_INTERRUPTIBLE, HCI_INIT_TIMEOUT);
2971 if (err == -EINTR) {
2972 bt_dev_err(hdev, "Execution of wmt command interrupted");
2973 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2974 return err;
2975 }
2976
2977 if (err) {
2978 bt_dev_err(hdev, "Execution of wmt command timed out");
2979 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2980 return -ETIMEDOUT;
2981 }
2982
2983 /* Parse and handle the return WMT event */
2984 wmt_evt = (struct btmtk_hci_wmt_evt *)data->evt_skb->data;
2985 if (wmt_evt->whdr.op != hdr->op) {
2986 bt_dev_err(hdev, "Wrong op received %d expected %d",
2987 wmt_evt->whdr.op, hdr->op);
2988 err = -EIO;
2989 goto err_free_skb;
2990 }
2991
2992 switch (wmt_evt->whdr.op) {
2993 case BTMTK_WMT_SEMAPHORE:
2994 if (wmt_evt->whdr.flag == 2)
2995 status = BTMTK_WMT_PATCH_UNDONE;
2996 else
2997 status = BTMTK_WMT_PATCH_DONE;
2998 break;
2999 case BTMTK_WMT_FUNC_CTRL:
3000 wmt_evt_funcc = (struct btmtk_hci_wmt_evt_funcc *)wmt_evt;
3001 if (be16_to_cpu(wmt_evt_funcc->status) == 0x404)
3002 status = BTMTK_WMT_ON_DONE;
3003 else if (be16_to_cpu(wmt_evt_funcc->status) == 0x420)
3004 status = BTMTK_WMT_ON_PROGRESS;
3005 else
3006 status = BTMTK_WMT_ON_UNDONE;
3007 break;
3008 }
3009
3010 if (wmt_params->status)
3011 *wmt_params->status = status;
3012
3013err_free_skb:
3014 kfree_skb(data->evt_skb);
3015 data->evt_skb = NULL;
3016
3017 return err;
3018}
3019
3020static int btusb_mtk_setup_firmware(struct hci_dev *hdev, const char *fwname)
3021{
3022 struct btmtk_hci_wmt_params wmt_params;
3023 const struct firmware *fw;
3024 const u8 *fw_ptr;
3025 size_t fw_size;
3026 int err, dlen;
3027 u8 flag, param;
3028
3029 err = request_firmware(&fw, fwname, &hdev->dev);
3030 if (err < 0) {
3031 bt_dev_err(hdev, "Failed to load firmware file (%d)", err);
3032 return err;
3033 }
3034
3035 /* Power on data RAM the firmware relies on. */
3036 param = 1;
3037 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3038 wmt_params.flag = 3;
3039 wmt_params.dlen = sizeof(param);
3040 wmt_params.data = ¶m;
3041 wmt_params.status = NULL;
3042
3043 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3044 if (err < 0) {
3045 bt_dev_err(hdev, "Failed to power on data RAM (%d)", err);
3046 return err;
3047 }
3048
3049 fw_ptr = fw->data;
3050 fw_size = fw->size;
3051
3052 /* The size of patch header is 30 bytes, should be skip */
3053 if (fw_size < 30) {
3054 err = -EINVAL;
3055 goto err_release_fw;
3056 }
3057
3058 fw_size -= 30;
3059 fw_ptr += 30;
3060 flag = 1;
3061
3062 wmt_params.op = BTMTK_WMT_PATCH_DWNLD;
3063 wmt_params.status = NULL;
3064
3065 while (fw_size > 0) {
3066 dlen = min_t(int, 250, fw_size);
3067
3068 /* Tell deivice the position in sequence */
3069 if (fw_size - dlen <= 0)
3070 flag = 3;
3071 else if (fw_size < fw->size - 30)
3072 flag = 2;
3073
3074 wmt_params.flag = flag;
3075 wmt_params.dlen = dlen;
3076 wmt_params.data = fw_ptr;
3077
3078 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3079 if (err < 0) {
3080 bt_dev_err(hdev, "Failed to send wmt patch dwnld (%d)",
3081 err);
3082 goto err_release_fw;
3083 }
3084
3085 fw_size -= dlen;
3086 fw_ptr += dlen;
3087 }
3088
3089 wmt_params.op = BTMTK_WMT_RST;
3090 wmt_params.flag = 4;
3091 wmt_params.dlen = 0;
3092 wmt_params.data = NULL;
3093 wmt_params.status = NULL;
3094
3095 /* Activate funciton the firmware providing to */
3096 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3097 if (err < 0) {
3098 bt_dev_err(hdev, "Failed to send wmt rst (%d)", err);
3099 goto err_release_fw;
3100 }
3101
3102 /* Wait a few moments for firmware activation done */
3103 usleep_range(10000, 12000);
3104
3105err_release_fw:
3106 release_firmware(fw);
3107
3108 return err;
3109}
3110
3111static int btusb_mtk_func_query(struct hci_dev *hdev)
3112{
3113 struct btmtk_hci_wmt_params wmt_params;
3114 int status, err;
3115 u8 param = 0;
3116
3117 /* Query whether the function is enabled */
3118 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3119 wmt_params.flag = 4;
3120 wmt_params.dlen = sizeof(param);
3121 wmt_params.data = ¶m;
3122 wmt_params.status = &status;
3123
3124 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3125 if (err < 0) {
3126 bt_dev_err(hdev, "Failed to query function status (%d)", err);
3127 return err;
3128 }
3129
3130 return status;
3131}
3132
3133static int btusb_mtk_reg_read(struct btusb_data *data, u32 reg, u32 *val)
3134{
3135 int pipe, err, size = sizeof(u32);
3136 void *buf;
3137
3138 buf = kzalloc(size, GFP_KERNEL);
3139 if (!buf)
3140 return -ENOMEM;
3141
3142 pipe = usb_rcvctrlpipe(data->udev, 0);
3143 err = usb_control_msg(data->udev, pipe, 0x63,
3144 USB_TYPE_VENDOR | USB_DIR_IN,
3145 reg >> 16, reg & 0xffff,
3146 buf, size, USB_CTRL_SET_TIMEOUT);
3147 if (err < 0)
3148 goto err_free_buf;
3149
3150 *val = get_unaligned_le32(buf);
3151
3152err_free_buf:
3153 kfree(buf);
3154
3155 return err;
3156}
3157
3158static int btusb_mtk_id_get(struct btusb_data *data, u32 *id)
3159{
3160 return btusb_mtk_reg_read(data, 0x80000008, id);
3161}
3162
3163static int btusb_mtk_setup(struct hci_dev *hdev)
3164{
3165 struct btusb_data *data = hci_get_drvdata(hdev);
3166 struct btmtk_hci_wmt_params wmt_params;
3167 ktime_t calltime, delta, rettime;
3168 struct btmtk_tci_sleep tci_sleep;
3169 unsigned long long duration;
3170 struct sk_buff *skb;
3171 const char *fwname;
3172 int err, status;
3173 u32 dev_id;
3174 u8 param;
3175
3176 calltime = ktime_get();
3177
3178 err = btusb_mtk_id_get(data, &dev_id);
3179 if (err < 0) {
3180 bt_dev_err(hdev, "Failed to get device id (%d)", err);
3181 return err;
3182 }
3183
3184 switch (dev_id) {
3185 case 0x7663:
3186 fwname = FIRMWARE_MT7663;
3187 break;
3188 case 0x7668:
3189 fwname = FIRMWARE_MT7668;
3190 break;
3191 default:
3192 bt_dev_err(hdev, "Unsupported support hardware variant (%08x)",
3193 dev_id);
3194 return -ENODEV;
3195 }
3196
3197 /* Query whether the firmware is already download */
3198 wmt_params.op = BTMTK_WMT_SEMAPHORE;
3199 wmt_params.flag = 1;
3200 wmt_params.dlen = 0;
3201 wmt_params.data = NULL;
3202 wmt_params.status = &status;
3203
3204 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3205 if (err < 0) {
3206 bt_dev_err(hdev, "Failed to query firmware status (%d)", err);
3207 return err;
3208 }
3209
3210 if (status == BTMTK_WMT_PATCH_DONE) {
3211 bt_dev_info(hdev, "firmware already downloaded");
3212 goto ignore_setup_fw;
3213 }
3214
3215 /* Setup a firmware which the device definitely requires */
3216 err = btusb_mtk_setup_firmware(hdev, fwname);
3217 if (err < 0)
3218 return err;
3219
3220ignore_setup_fw:
3221 err = readx_poll_timeout(btusb_mtk_func_query, hdev, status,
3222 status < 0 || status != BTMTK_WMT_ON_PROGRESS,
3223 2000, 5000000);
3224 /* -ETIMEDOUT happens */
3225 if (err < 0)
3226 return err;
3227
3228 /* The other errors happen in btusb_mtk_func_query */
3229 if (status < 0)
3230 return status;
3231
3232 if (status == BTMTK_WMT_ON_DONE) {
3233 bt_dev_info(hdev, "function already on");
3234 goto ignore_func_on;
3235 }
3236
3237 /* Enable Bluetooth protocol */
3238 param = 1;
3239 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3240 wmt_params.flag = 0;
3241 wmt_params.dlen = sizeof(param);
3242 wmt_params.data = ¶m;
3243 wmt_params.status = NULL;
3244
3245 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3246 if (err < 0) {
3247 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3248 return err;
3249 }
3250
3251ignore_func_on:
3252 /* Apply the low power environment setup */
3253 tci_sleep.mode = 0x5;
3254 tci_sleep.duration = cpu_to_le16(0x640);
3255 tci_sleep.host_duration = cpu_to_le16(0x640);
3256 tci_sleep.host_wakeup_pin = 0;
3257 tci_sleep.time_compensation = 0;
3258
3259 skb = __hci_cmd_sync(hdev, 0xfc7a, sizeof(tci_sleep), &tci_sleep,
3260 HCI_INIT_TIMEOUT);
3261 if (IS_ERR(skb)) {
3262 err = PTR_ERR(skb);
3263 bt_dev_err(hdev, "Failed to apply low power setting (%d)", err);
3264 return err;
3265 }
3266 kfree_skb(skb);
3267
3268 rettime = ktime_get();
3269 delta = ktime_sub(rettime, calltime);
3270 duration = (unsigned long long)ktime_to_ns(delta) >> 10;
3271
3272 bt_dev_info(hdev, "Device setup in %llu usecs", duration);
3273
3274 return 0;
3275}
3276
3277static int btusb_mtk_shutdown(struct hci_dev *hdev)
3278{
3279 struct btmtk_hci_wmt_params wmt_params;
3280 u8 param = 0;
3281 int err;
3282
3283 /* Disable the device */
3284 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3285 wmt_params.flag = 0;
3286 wmt_params.dlen = sizeof(param);
3287 wmt_params.data = ¶m;
3288 wmt_params.status = NULL;
3289
3290 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3291 if (err < 0) {
3292 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3293 return err;
3294 }
3295
3296 return 0;
3297}
3298
3299MODULE_FIRMWARE(FIRMWARE_MT7663);
3300MODULE_FIRMWARE(FIRMWARE_MT7668);
3301
3302#ifdef CONFIG_PM
3303/* Configure an out-of-band gpio as wake-up pin, if specified in device tree */
3304static int marvell_config_oob_wake(struct hci_dev *hdev)
3305{
3306 struct sk_buff *skb;
3307 struct btusb_data *data = hci_get_drvdata(hdev);
3308 struct device *dev = &data->udev->dev;
3309 u16 pin, gap, opcode;
3310 int ret;
3311 u8 cmd[5];
3312
3313 /* Move on if no wakeup pin specified */
3314 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) ||
3315 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap))
3316 return 0;
3317
3318 /* Vendor specific command to configure a GPIO as wake-up pin */
3319 opcode = hci_opcode_pack(0x3F, 0x59);
3320 cmd[0] = opcode & 0xFF;
3321 cmd[1] = opcode >> 8;
3322 cmd[2] = 2; /* length of parameters that follow */
3323 cmd[3] = pin;
3324 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */
3325
3326 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
3327 if (!skb) {
3328 bt_dev_err(hdev, "%s: No memory\n", __func__);
3329 return -ENOMEM;
3330 }
3331
3332 skb_put_data(skb, cmd, sizeof(cmd));
3333 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT;
3334
3335 ret = btusb_send_frame(hdev, skb);
3336 if (ret) {
3337 bt_dev_err(hdev, "%s: configuration failed\n", __func__);
3338 kfree_skb(skb);
3339 return ret;
3340 }
3341
3342 return 0;
3343}
3344#endif
3345
3346static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
3347 const bdaddr_t *bdaddr)
3348{
3349 struct sk_buff *skb;
3350 u8 buf[8];
3351 long ret;
3352
3353 buf[0] = 0xfe;
3354 buf[1] = sizeof(bdaddr_t);
3355 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
3356
3357 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
3358 if (IS_ERR(skb)) {
3359 ret = PTR_ERR(skb);
3360 bt_dev_err(hdev, "changing Marvell device address failed (%ld)",
3361 ret);
3362 return ret;
3363 }
3364 kfree_skb(skb);
3365
3366 return 0;
3367}
3368
3369static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
3370 const bdaddr_t *bdaddr)
3371{
3372 struct sk_buff *skb;
3373 u8 buf[10];
3374 long ret;
3375
3376 buf[0] = 0x01;
3377 buf[1] = 0x01;
3378 buf[2] = 0x00;
3379 buf[3] = sizeof(bdaddr_t);
3380 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
3381
3382 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
3383 if (IS_ERR(skb)) {
3384 ret = PTR_ERR(skb);
3385 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
3386 return ret;
3387 }
3388 kfree_skb(skb);
3389
3390 return 0;
3391}
3392
3393#define QCA_DFU_PACKET_LEN 4096
3394
3395#define QCA_GET_TARGET_VERSION 0x09
3396#define QCA_CHECK_STATUS 0x05
3397#define QCA_DFU_DOWNLOAD 0x01
3398
3399#define QCA_SYSCFG_UPDATED 0x40
3400#define QCA_PATCH_UPDATED 0x80
3401#define QCA_DFU_TIMEOUT 3000
3402
3403struct qca_version {
3404 __le32 rom_version;
3405 __le32 patch_version;
3406 __le32 ram_version;
3407 __le32 ref_clock;
3408 __u8 reserved[4];
3409} __packed;
3410
3411struct qca_rampatch_version {
3412 __le16 rom_version;
3413 __le16 patch_version;
3414} __packed;
3415
3416struct qca_device_info {
3417 u32 rom_version;
3418 u8 rampatch_hdr; /* length of header in rampatch */
3419 u8 nvm_hdr; /* length of header in NVM */
3420 u8 ver_offset; /* offset of version structure in rampatch */
3421};
3422
3423static const struct qca_device_info qca_devices_table[] = {
3424 { 0x00000100, 20, 4, 10 }, /* Rome 1.0 */
3425 { 0x00000101, 20, 4, 10 }, /* Rome 1.1 */
3426 { 0x00000200, 28, 4, 18 }, /* Rome 2.0 */
3427 { 0x00000201, 28, 4, 18 }, /* Rome 2.1 */
3428 { 0x00000300, 28, 4, 18 }, /* Rome 3.0 */
3429 { 0x00000302, 28, 4, 18 }, /* Rome 3.2 */
3430};
3431
3432static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request,
3433 void *data, u16 size)
3434{
3435 int pipe, err;
3436 u8 *buf;
3437
3438 buf = kmalloc(size, GFP_KERNEL);
3439 if (!buf)
3440 return -ENOMEM;
3441
3442 /* Found some of USB hosts have IOT issues with ours so that we should
3443 * not wait until HCI layer is ready.
3444 */
3445 pipe = usb_rcvctrlpipe(udev, 0);
3446 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
3447 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
3448 if (err < 0) {
3449 dev_err(&udev->dev, "Failed to access otp area (%d)", err);
3450 goto done;
3451 }
3452
3453 memcpy(data, buf, size);
3454
3455done:
3456 kfree(buf);
3457
3458 return err;
3459}
3460
3461static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
3462 const struct firmware *firmware,
3463 size_t hdr_size)
3464{
3465 struct btusb_data *btdata = hci_get_drvdata(hdev);
3466 struct usb_device *udev = btdata->udev;
3467 size_t count, size, sent = 0;
3468 int pipe, len, err;
3469 u8 *buf;
3470
3471 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
3472 if (!buf)
3473 return -ENOMEM;
3474
3475 count = firmware->size;
3476
3477 size = min_t(size_t, count, hdr_size);
3478 memcpy(buf, firmware->data, size);
3479
3480 /* USB patches should go down to controller through USB path
3481 * because binary format fits to go down through USB channel.
3482 * USB control path is for patching headers and USB bulk is for
3483 * patch body.
3484 */
3485 pipe = usb_sndctrlpipe(udev, 0);
3486 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
3487 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
3488 if (err < 0) {
3489 bt_dev_err(hdev, "Failed to send headers (%d)", err);
3490 goto done;
3491 }
3492
3493 sent += size;
3494 count -= size;
3495
3496 while (count) {
3497 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
3498
3499 memcpy(buf, firmware->data + sent, size);
3500
3501 pipe = usb_sndbulkpipe(udev, 0x02);
3502 err = usb_bulk_msg(udev, pipe, buf, size, &len,
3503 QCA_DFU_TIMEOUT);
3504 if (err < 0) {
3505 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)",
3506 sent, firmware->size, err);
3507 break;
3508 }
3509
3510 if (size != len) {
3511 bt_dev_err(hdev, "Failed to get bulk buffer");
3512 err = -EILSEQ;
3513 break;
3514 }
3515
3516 sent += size;
3517 count -= size;
3518 }
3519
3520done:
3521 kfree(buf);
3522 return err;
3523}
3524
3525static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
3526 struct qca_version *ver,
3527 const struct qca_device_info *info)
3528{
3529 struct qca_rampatch_version *rver;
3530 const struct firmware *fw;
3531 u32 ver_rom, ver_patch;
3532 u16 rver_rom, rver_patch;
3533 char fwname[64];
3534 int err;
3535
3536 ver_rom = le32_to_cpu(ver->rom_version);
3537 ver_patch = le32_to_cpu(ver->patch_version);
3538
3539 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom);
3540
3541 err = request_firmware(&fw, fwname, &hdev->dev);
3542 if (err) {
3543 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)",
3544 fwname, err);
3545 return err;
3546 }
3547
3548 bt_dev_info(hdev, "using rampatch file: %s", fwname);
3549
3550 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
3551 rver_rom = le16_to_cpu(rver->rom_version);
3552 rver_patch = le16_to_cpu(rver->patch_version);
3553
3554 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, "
3555 "firmware rome 0x%x build 0x%x",
3556 rver_rom, rver_patch, ver_rom, ver_patch);
3557
3558 if (rver_rom != ver_rom || rver_patch <= ver_patch) {
3559 bt_dev_err(hdev, "rampatch file version did not match with firmware");
3560 err = -EINVAL;
3561 goto done;
3562 }
3563
3564 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
3565
3566done:
3567 release_firmware(fw);
3568
3569 return err;
3570}
3571
3572static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
3573 struct qca_version *ver,
3574 const struct qca_device_info *info)
3575{
3576 const struct firmware *fw;
3577 char fwname[64];
3578 int err;
3579
3580 snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin",
3581 le32_to_cpu(ver->rom_version));
3582
3583 err = request_firmware(&fw, fwname, &hdev->dev);
3584 if (err) {
3585 bt_dev_err(hdev, "failed to request NVM file: %s (%d)",
3586 fwname, err);
3587 return err;
3588 }
3589
3590 bt_dev_info(hdev, "using NVM file: %s", fwname);
3591
3592 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
3593
3594 release_firmware(fw);
3595
3596 return err;
3597}
3598
3599/* identify the ROM version and check whether patches are needed */
3600static bool btusb_qca_need_patch(struct usb_device *udev)
3601{
3602 struct qca_version ver;
3603
3604 if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3605 sizeof(ver)) < 0)
3606 return false;
3607 /* only low ROM versions need patches */
3608 return !(le32_to_cpu(ver.rom_version) & ~0xffffU);
3609}
3610
3611static int btusb_setup_qca(struct hci_dev *hdev)
3612{
3613 struct btusb_data *btdata = hci_get_drvdata(hdev);
3614 struct usb_device *udev = btdata->udev;
3615 const struct qca_device_info *info = NULL;
3616 struct qca_version ver;
3617 u32 ver_rom;
3618 u8 status;
3619 int i, err;
3620
3621 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3622 sizeof(ver));
3623 if (err < 0)
3624 return err;
3625
3626 ver_rom = le32_to_cpu(ver.rom_version);
3627 /* Don't care about high ROM versions */
3628 if (ver_rom & ~0xffffU)
3629 return 0;
3630
3631 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
3632 if (ver_rom == qca_devices_table[i].rom_version)
3633 info = &qca_devices_table[i];
3634 }
3635 if (!info) {
3636 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom);
3637 return -ENODEV;
3638 }
3639
3640 err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status,
3641 sizeof(status));
3642 if (err < 0)
3643 return err;
3644
3645 if (!(status & QCA_PATCH_UPDATED)) {
3646 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
3647 if (err < 0)
3648 return err;
3649 }
3650
3651 if (!(status & QCA_SYSCFG_UPDATED)) {
3652 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
3653 if (err < 0)
3654 return err;
3655 }
3656
3657 return 0;
3658}
3659
3660static inline int __set_diag_interface(struct hci_dev *hdev)
3661{
3662 struct btusb_data *data = hci_get_drvdata(hdev);
3663 struct usb_interface *intf = data->diag;
3664 int i;
3665
3666 if (!data->diag)
3667 return -ENODEV;
3668
3669 data->diag_tx_ep = NULL;
3670 data->diag_rx_ep = NULL;
3671
3672 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
3673 struct usb_endpoint_descriptor *ep_desc;
3674
3675 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
3676
3677 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
3678 data->diag_tx_ep = ep_desc;
3679 continue;
3680 }
3681
3682 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
3683 data->diag_rx_ep = ep_desc;
3684 continue;
3685 }
3686 }
3687
3688 if (!data->diag_tx_ep || !data->diag_rx_ep) {
3689 bt_dev_err(hdev, "invalid diagnostic descriptors");
3690 return -ENODEV;
3691 }
3692
3693 return 0;
3694}
3695
3696static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable)
3697{
3698 struct btusb_data *data = hci_get_drvdata(hdev);
3699 struct sk_buff *skb;
3700 struct urb *urb;
3701 unsigned int pipe;
3702
3703 if (!data->diag_tx_ep)
3704 return ERR_PTR(-ENODEV);
3705
3706 urb = usb_alloc_urb(0, GFP_KERNEL);
3707 if (!urb)
3708 return ERR_PTR(-ENOMEM);
3709
3710 skb = bt_skb_alloc(2, GFP_KERNEL);
3711 if (!skb) {
3712 usb_free_urb(urb);
3713 return ERR_PTR(-ENOMEM);
3714 }
3715
3716 skb_put_u8(skb, 0xf0);
3717 skb_put_u8(skb, enable);
3718
3719 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress);
3720
3721 usb_fill_bulk_urb(urb, data->udev, pipe,
3722 skb->data, skb->len, btusb_tx_complete, skb);
3723
3724 skb->dev = (void *)hdev;
3725
3726 return urb;
3727}
3728
3729static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable)
3730{
3731 struct btusb_data *data = hci_get_drvdata(hdev);
3732 struct urb *urb;
3733
3734 if (!data->diag)
3735 return -ENODEV;
3736
3737 if (!test_bit(HCI_RUNNING, &hdev->flags))
3738 return -ENETDOWN;
3739
3740 urb = alloc_diag_urb(hdev, enable);
3741 if (IS_ERR(urb))
3742 return PTR_ERR(urb);
3743
3744 return submit_or_queue_tx_urb(hdev, urb);
3745}
3746
3747#ifdef CONFIG_PM
3748static irqreturn_t btusb_oob_wake_handler(int irq, void *priv)
3749{
3750 struct btusb_data *data = priv;
3751
3752 pm_wakeup_event(&data->udev->dev, 0);
3753 pm_system_wakeup();
3754
3755 /* Disable only if not already disabled (keep it balanced) */
3756 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
3757 disable_irq_nosync(irq);
3758 disable_irq_wake(irq);
3759 }
3760 return IRQ_HANDLED;
3761}
3762
3763static const struct of_device_id btusb_match_table[] = {
3764 { .compatible = "usb1286,204e" },
3765 { .compatible = "usbcf3,e300" }, /* QCA6174A */
3766 { .compatible = "usb4ca,301a" }, /* QCA6174A (Lite-On) */
3767 { }
3768};
3769MODULE_DEVICE_TABLE(of, btusb_match_table);
3770
3771/* Use an oob wakeup pin? */
3772static int btusb_config_oob_wake(struct hci_dev *hdev)
3773{
3774 struct btusb_data *data = hci_get_drvdata(hdev);
3775 struct device *dev = &data->udev->dev;
3776 int irq, ret;
3777
3778 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
3779
3780 if (!of_match_device(btusb_match_table, dev))
3781 return 0;
3782
3783 /* Move on if no IRQ specified */
3784 irq = of_irq_get_byname(dev->of_node, "wakeup");
3785 if (irq <= 0) {
3786 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__);
3787 return 0;
3788 }
3789
3790 irq_set_status_flags(irq, IRQ_NOAUTOEN);
3791 ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler,
3792 0, "OOB Wake-on-BT", data);
3793 if (ret) {
3794 bt_dev_err(hdev, "%s: IRQ request failed", __func__);
3795 return ret;
3796 }
3797
3798 ret = device_init_wakeup(dev, true);
3799 if (ret) {
3800 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__);
3801 return ret;
3802 }
3803
3804 data->oob_wake_irq = irq;
3805 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq);
3806 return 0;
3807}
3808#endif
3809
3810static void btusb_check_needs_reset_resume(struct usb_interface *intf)
3811{
3812 if (dmi_check_system(btusb_needs_reset_resume_table))
3813 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
3814}
3815
3816static bool btusb_prevent_wake(struct hci_dev *hdev)
3817{
3818 struct btusb_data *data = hci_get_drvdata(hdev);
3819
3820 if (test_bit(BTUSB_WAKEUP_DISABLE, &data->flags))
3821 return true;
3822
3823 return !device_may_wakeup(&data->udev->dev);
3824}
3825
3826static int btusb_probe(struct usb_interface *intf,
3827 const struct usb_device_id *id)
3828{
3829 struct usb_endpoint_descriptor *ep_desc;
3830 struct gpio_desc *reset_gpio;
3831 struct btusb_data *data;
3832 struct hci_dev *hdev;
3833 unsigned ifnum_base;
3834 int i, err;
3835
3836 BT_DBG("intf %p id %p", intf, id);
3837
3838 /* interface numbers are hardcoded in the spec */
3839 if (intf->cur_altsetting->desc.bInterfaceNumber != 0) {
3840 if (!(id->driver_info & BTUSB_IFNUM_2))
3841 return -ENODEV;
3842 if (intf->cur_altsetting->desc.bInterfaceNumber != 2)
3843 return -ENODEV;
3844 }
3845
3846 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber;
3847
3848 if (!id->driver_info) {
3849 const struct usb_device_id *match;
3850
3851 match = usb_match_id(intf, blacklist_table);
3852 if (match)
3853 id = match;
3854 }
3855
3856 if (id->driver_info == BTUSB_IGNORE)
3857 return -ENODEV;
3858
3859 if (id->driver_info & BTUSB_ATH3012) {
3860 struct usb_device *udev = interface_to_usbdev(intf);
3861
3862 /* Old firmware would otherwise let ath3k driver load
3863 * patch and sysconfig files
3864 */
3865 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 &&
3866 !btusb_qca_need_patch(udev))
3867 return -ENODEV;
3868 }
3869
3870 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
3871 if (!data)
3872 return -ENOMEM;
3873
3874 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
3875 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
3876
3877 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
3878 data->intr_ep = ep_desc;
3879 continue;
3880 }
3881
3882 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
3883 data->bulk_tx_ep = ep_desc;
3884 continue;
3885 }
3886
3887 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
3888 data->bulk_rx_ep = ep_desc;
3889 continue;
3890 }
3891 }
3892
3893 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
3894 return -ENODEV;
3895
3896 if (id->driver_info & BTUSB_AMP) {
3897 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
3898 data->cmdreq = 0x2b;
3899 } else {
3900 data->cmdreq_type = USB_TYPE_CLASS;
3901 data->cmdreq = 0x00;
3902 }
3903
3904 data->udev = interface_to_usbdev(intf);
3905 data->intf = intf;
3906
3907 INIT_WORK(&data->work, btusb_work);
3908 INIT_WORK(&data->waker, btusb_waker);
3909 init_usb_anchor(&data->deferred);
3910 init_usb_anchor(&data->tx_anchor);
3911 spin_lock_init(&data->txlock);
3912
3913 init_usb_anchor(&data->intr_anchor);
3914 init_usb_anchor(&data->bulk_anchor);
3915 init_usb_anchor(&data->isoc_anchor);
3916 init_usb_anchor(&data->diag_anchor);
3917 init_usb_anchor(&data->ctrl_anchor);
3918 spin_lock_init(&data->rxlock);
3919
3920 if (id->driver_info & BTUSB_INTEL_NEW) {
3921 data->recv_event = btusb_recv_event_intel;
3922 data->recv_bulk = btusb_recv_bulk_intel;
3923 set_bit(BTUSB_BOOTLOADER, &data->flags);
3924 } else {
3925 data->recv_event = hci_recv_frame;
3926 data->recv_bulk = btusb_recv_bulk;
3927 }
3928
3929 hdev = hci_alloc_dev();
3930 if (!hdev)
3931 return -ENOMEM;
3932
3933 hdev->bus = HCI_USB;
3934 hci_set_drvdata(hdev, data);
3935
3936 if (id->driver_info & BTUSB_AMP)
3937 hdev->dev_type = HCI_AMP;
3938 else
3939 hdev->dev_type = HCI_PRIMARY;
3940
3941 data->hdev = hdev;
3942
3943 SET_HCIDEV_DEV(hdev, &intf->dev);
3944
3945 reset_gpio = gpiod_get_optional(&data->udev->dev, "reset",
3946 GPIOD_OUT_LOW);
3947 if (IS_ERR(reset_gpio)) {
3948 err = PTR_ERR(reset_gpio);
3949 goto out_free_dev;
3950 } else if (reset_gpio) {
3951 data->reset_gpio = reset_gpio;
3952 }
3953
3954 hdev->open = btusb_open;
3955 hdev->close = btusb_close;
3956 hdev->flush = btusb_flush;
3957 hdev->send = btusb_send_frame;
3958 hdev->notify = btusb_notify;
3959 hdev->prevent_wake = btusb_prevent_wake;
3960
3961#ifdef CONFIG_PM
3962 err = btusb_config_oob_wake(hdev);
3963 if (err)
3964 goto out_free_dev;
3965
3966 /* Marvell devices may need a specific chip configuration */
3967 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) {
3968 err = marvell_config_oob_wake(hdev);
3969 if (err)
3970 goto out_free_dev;
3971 }
3972#endif
3973 if (id->driver_info & BTUSB_CW6622)
3974 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
3975
3976 if (id->driver_info & BTUSB_BCM2045)
3977 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
3978
3979 if (id->driver_info & BTUSB_BCM92035)
3980 hdev->setup = btusb_setup_bcm92035;
3981
3982 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
3983 (id->driver_info & BTUSB_BCM_PATCHRAM)) {
3984 hdev->manufacturer = 15;
3985 hdev->setup = btbcm_setup_patchram;
3986 hdev->set_diag = btusb_bcm_set_diag;
3987 hdev->set_bdaddr = btbcm_set_bdaddr;
3988
3989 /* Broadcom LM_DIAG Interface numbers are hardcoded */
3990 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
3991 }
3992
3993 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
3994 (id->driver_info & BTUSB_BCM_APPLE)) {
3995 hdev->manufacturer = 15;
3996 hdev->setup = btbcm_setup_apple;
3997 hdev->set_diag = btusb_bcm_set_diag;
3998
3999 /* Broadcom LM_DIAG Interface numbers are hardcoded */
4000 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
4001 }
4002
4003 if (id->driver_info & BTUSB_INTEL) {
4004 hdev->manufacturer = 2;
4005 hdev->setup = btusb_setup_intel;
4006 hdev->shutdown = btusb_shutdown_intel;
4007 hdev->set_diag = btintel_set_diag_mfg;
4008 hdev->set_bdaddr = btintel_set_bdaddr;
4009 hdev->cmd_timeout = btusb_intel_cmd_timeout;
4010 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
4011 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4012 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks);
4013 }
4014
4015 if (id->driver_info & BTUSB_INTEL_NEW) {
4016 hdev->manufacturer = 2;
4017 hdev->send = btusb_send_frame_intel;
4018 hdev->setup = btusb_setup_intel_new;
4019 hdev->shutdown = btusb_shutdown_intel_new;
4020 hdev->hw_error = btintel_hw_error;
4021 hdev->set_diag = btintel_set_diag;
4022 hdev->set_bdaddr = btintel_set_bdaddr;
4023 hdev->cmd_timeout = btusb_intel_cmd_timeout;
4024 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
4025 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4026 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks);
4027 }
4028
4029 if (id->driver_info & BTUSB_MARVELL)
4030 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
4031
4032 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_MTK) &&
4033 (id->driver_info & BTUSB_MEDIATEK)) {
4034 hdev->setup = btusb_mtk_setup;
4035 hdev->shutdown = btusb_mtk_shutdown;
4036 hdev->manufacturer = 70;
4037 set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
4038 }
4039
4040 if (id->driver_info & BTUSB_SWAVE) {
4041 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
4042 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
4043 }
4044
4045 if (id->driver_info & BTUSB_INTEL_BOOT) {
4046 hdev->manufacturer = 2;
4047 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
4048 }
4049
4050 if (id->driver_info & BTUSB_ATH3012) {
4051 data->setup_on_usb = btusb_setup_qca;
4052 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
4053 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4054 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
4055 }
4056
4057 if (id->driver_info & BTUSB_QCA_ROME) {
4058 data->setup_on_usb = btusb_setup_qca;
4059 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
4060 hdev->cmd_timeout = btusb_qca_cmd_timeout;
4061 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4062 btusb_check_needs_reset_resume(intf);
4063 }
4064
4065 if (id->driver_info & BTUSB_AMP) {
4066 /* AMP controllers do not support SCO packets */
4067 data->isoc = NULL;
4068 } else {
4069 /* Interface orders are hardcoded in the specification */
4070 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1);
4071 data->isoc_ifnum = ifnum_base + 1;
4072 }
4073
4074 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_RTL) &&
4075 (id->driver_info & BTUSB_REALTEK)) {
4076 hdev->setup = btrtl_setup_realtek;
4077 hdev->shutdown = btrtl_shutdown_realtek;
4078 hdev->cmd_timeout = btusb_rtl_cmd_timeout;
4079
4080 /* Realtek devices lose their updated firmware over global
4081 * suspend that means host doesn't send SET_FEATURE
4082 * (DEVICE_REMOTE_WAKEUP)
4083 */
4084 set_bit(BTUSB_WAKEUP_DISABLE, &data->flags);
4085 if (btusb_find_altsetting(data, 1))
4086 set_bit(BTUSB_USE_ALT1_FOR_WBS, &data->flags);
4087 else
4088 bt_dev_err(hdev, "Device does not support ALT setting 1");
4089 }
4090
4091 if (!reset)
4092 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
4093
4094 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
4095 if (!disable_scofix)
4096 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
4097 }
4098
4099 if (id->driver_info & BTUSB_BROKEN_ISOC)
4100 data->isoc = NULL;
4101
4102 if (id->driver_info & BTUSB_WIDEBAND_SPEECH)
4103 set_bit(HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED, &hdev->quirks);
4104
4105 if (id->driver_info & BTUSB_VALID_LE_STATES)
4106 set_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks);
4107
4108 if (id->driver_info & BTUSB_DIGIANSWER) {
4109 data->cmdreq_type = USB_TYPE_VENDOR;
4110 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
4111 }
4112
4113 if (id->driver_info & BTUSB_CSR) {
4114 struct usb_device *udev = data->udev;
4115 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
4116
4117 /* Old firmware would otherwise execute USB reset */
4118 if (bcdDevice < 0x117)
4119 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
4120
4121 /* This must be set first in case we disable it for fakes */
4122 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4123
4124 /* Fake CSR devices with broken commands */
4125 if (le16_to_cpu(udev->descriptor.idVendor) == 0x0a12 &&
4126 le16_to_cpu(udev->descriptor.idProduct) == 0x0001)
4127 hdev->setup = btusb_setup_csr;
4128 }
4129
4130 if (id->driver_info & BTUSB_SNIFFER) {
4131 struct usb_device *udev = data->udev;
4132
4133 /* New sniffer firmware has crippled HCI interface */
4134 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
4135 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
4136 }
4137
4138 if (id->driver_info & BTUSB_INTEL_BOOT) {
4139 /* A bug in the bootloader causes that interrupt interface is
4140 * only enabled after receiving SetInterface(0, AltSetting=0).
4141 */
4142 err = usb_set_interface(data->udev, 0, 0);
4143 if (err < 0) {
4144 BT_ERR("failed to set interface 0, alt 0 %d", err);
4145 goto out_free_dev;
4146 }
4147 }
4148
4149 if (data->isoc) {
4150 err = usb_driver_claim_interface(&btusb_driver,
4151 data->isoc, data);
4152 if (err < 0)
4153 goto out_free_dev;
4154 }
4155
4156 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && data->diag) {
4157 if (!usb_driver_claim_interface(&btusb_driver,
4158 data->diag, data))
4159 __set_diag_interface(hdev);
4160 else
4161 data->diag = NULL;
4162 }
4163
4164 if (enable_autosuspend)
4165 usb_enable_autosuspend(data->udev);
4166
4167 err = hci_register_dev(hdev);
4168 if (err < 0)
4169 goto out_free_dev;
4170
4171 usb_set_intfdata(intf, data);
4172
4173 return 0;
4174
4175out_free_dev:
4176 if (data->reset_gpio)
4177 gpiod_put(data->reset_gpio);
4178 hci_free_dev(hdev);
4179 return err;
4180}
4181
4182static void btusb_disconnect(struct usb_interface *intf)
4183{
4184 struct btusb_data *data = usb_get_intfdata(intf);
4185 struct hci_dev *hdev;
4186
4187 BT_DBG("intf %p", intf);
4188
4189 if (!data)
4190 return;
4191
4192 hdev = data->hdev;
4193 usb_set_intfdata(data->intf, NULL);
4194
4195 if (data->isoc)
4196 usb_set_intfdata(data->isoc, NULL);
4197
4198 if (data->diag)
4199 usb_set_intfdata(data->diag, NULL);
4200
4201 hci_unregister_dev(hdev);
4202
4203 if (intf == data->intf) {
4204 if (data->isoc)
4205 usb_driver_release_interface(&btusb_driver, data->isoc);
4206 if (data->diag)
4207 usb_driver_release_interface(&btusb_driver, data->diag);
4208 } else if (intf == data->isoc) {
4209 if (data->diag)
4210 usb_driver_release_interface(&btusb_driver, data->diag);
4211 usb_driver_release_interface(&btusb_driver, data->intf);
4212 } else if (intf == data->diag) {
4213 usb_driver_release_interface(&btusb_driver, data->intf);
4214 if (data->isoc)
4215 usb_driver_release_interface(&btusb_driver, data->isoc);
4216 }
4217
4218 if (data->oob_wake_irq)
4219 device_init_wakeup(&data->udev->dev, false);
4220
4221 if (data->reset_gpio)
4222 gpiod_put(data->reset_gpio);
4223
4224 hci_free_dev(hdev);
4225}
4226
4227#ifdef CONFIG_PM
4228static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
4229{
4230 struct btusb_data *data = usb_get_intfdata(intf);
4231
4232 BT_DBG("intf %p", intf);
4233
4234 if (data->suspend_count++)
4235 return 0;
4236
4237 spin_lock_irq(&data->txlock);
4238 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
4239 set_bit(BTUSB_SUSPENDING, &data->flags);
4240 spin_unlock_irq(&data->txlock);
4241 } else {
4242 spin_unlock_irq(&data->txlock);
4243 data->suspend_count--;
4244 return -EBUSY;
4245 }
4246
4247 cancel_work_sync(&data->work);
4248
4249 btusb_stop_traffic(data);
4250 usb_kill_anchored_urbs(&data->tx_anchor);
4251
4252 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) {
4253 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
4254 enable_irq_wake(data->oob_wake_irq);
4255 enable_irq(data->oob_wake_irq);
4256 }
4257
4258 /* For global suspend, Realtek devices lose the loaded fw
4259 * in them. But for autosuspend, firmware should remain.
4260 * Actually, it depends on whether the usb host sends
4261 * set feature (enable wakeup) or not.
4262 */
4263 if (test_bit(BTUSB_WAKEUP_DISABLE, &data->flags)) {
4264 if (PMSG_IS_AUTO(message) &&
4265 device_can_wakeup(&data->udev->dev))
4266 data->udev->do_remote_wakeup = 1;
4267 else if (!PMSG_IS_AUTO(message))
4268 data->udev->reset_resume = 1;
4269 }
4270
4271 return 0;
4272}
4273
4274static void play_deferred(struct btusb_data *data)
4275{
4276 struct urb *urb;
4277 int err;
4278
4279 while ((urb = usb_get_from_anchor(&data->deferred))) {
4280 usb_anchor_urb(urb, &data->tx_anchor);
4281
4282 err = usb_submit_urb(urb, GFP_ATOMIC);
4283 if (err < 0) {
4284 if (err != -EPERM && err != -ENODEV)
4285 BT_ERR("%s urb %p submission failed (%d)",
4286 data->hdev->name, urb, -err);
4287 kfree(urb->setup_packet);
4288 usb_unanchor_urb(urb);
4289 usb_free_urb(urb);
4290 break;
4291 }
4292
4293 data->tx_in_flight++;
4294 usb_free_urb(urb);
4295 }
4296
4297 /* Cleanup the rest deferred urbs. */
4298 while ((urb = usb_get_from_anchor(&data->deferred))) {
4299 kfree(urb->setup_packet);
4300 usb_free_urb(urb);
4301 }
4302}
4303
4304static int btusb_resume(struct usb_interface *intf)
4305{
4306 struct btusb_data *data = usb_get_intfdata(intf);
4307 struct hci_dev *hdev = data->hdev;
4308 int err = 0;
4309
4310 BT_DBG("intf %p", intf);
4311
4312 if (--data->suspend_count)
4313 return 0;
4314
4315 /* Disable only if not already disabled (keep it balanced) */
4316 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
4317 disable_irq(data->oob_wake_irq);
4318 disable_irq_wake(data->oob_wake_irq);
4319 }
4320
4321 if (!test_bit(HCI_RUNNING, &hdev->flags))
4322 goto done;
4323
4324 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
4325 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
4326 if (err < 0) {
4327 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
4328 goto failed;
4329 }
4330 }
4331
4332 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
4333 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
4334 if (err < 0) {
4335 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
4336 goto failed;
4337 }
4338
4339 btusb_submit_bulk_urb(hdev, GFP_NOIO);
4340 }
4341
4342 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
4343 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
4344 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
4345 else
4346 btusb_submit_isoc_urb(hdev, GFP_NOIO);
4347 }
4348
4349 spin_lock_irq(&data->txlock);
4350 play_deferred(data);
4351 clear_bit(BTUSB_SUSPENDING, &data->flags);
4352 spin_unlock_irq(&data->txlock);
4353 schedule_work(&data->work);
4354
4355 return 0;
4356
4357failed:
4358 usb_scuttle_anchored_urbs(&data->deferred);
4359done:
4360 spin_lock_irq(&data->txlock);
4361 clear_bit(BTUSB_SUSPENDING, &data->flags);
4362 spin_unlock_irq(&data->txlock);
4363
4364 return err;
4365}
4366#endif
4367
4368static struct usb_driver btusb_driver = {
4369 .name = "btusb",
4370 .probe = btusb_probe,
4371 .disconnect = btusb_disconnect,
4372#ifdef CONFIG_PM
4373 .suspend = btusb_suspend,
4374 .resume = btusb_resume,
4375#endif
4376 .id_table = btusb_table,
4377 .supports_autosuspend = 1,
4378 .disable_hub_initiated_lpm = 1,
4379};
4380
4381module_usb_driver(btusb_driver);
4382
4383module_param(disable_scofix, bool, 0644);
4384MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
4385
4386module_param(force_scofix, bool, 0644);
4387MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
4388
4389module_param(enable_autosuspend, bool, 0644);
4390MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default");
4391
4392module_param(reset, bool, 0644);
4393MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
4394
4395MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
4396MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
4397MODULE_VERSION(VERSION);
4398MODULE_LICENSE("GPL");
1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 *
4 * Generic Bluetooth USB driver
5 *
6 * Copyright (C) 2005-2008 Marcel Holtmann <marcel@holtmann.org>
7 */
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 <linux/debugfs.h>
20#include <linux/unaligned.h>
21
22#include <net/bluetooth/bluetooth.h>
23#include <net/bluetooth/hci_core.h>
24
25#include "btintel.h"
26#include "btbcm.h"
27#include "btrtl.h"
28#include "btmtk.h"
29
30#define VERSION "0.8"
31
32static bool disable_scofix;
33static bool force_scofix;
34static bool enable_autosuspend = IS_ENABLED(CONFIG_BT_HCIBTUSB_AUTOSUSPEND);
35static bool enable_poll_sync = IS_ENABLED(CONFIG_BT_HCIBTUSB_POLL_SYNC);
36static bool reset = true;
37
38static struct usb_driver btusb_driver;
39
40#define BTUSB_IGNORE BIT(0)
41#define BTUSB_DIGIANSWER BIT(1)
42#define BTUSB_CSR BIT(2)
43#define BTUSB_SNIFFER BIT(3)
44#define BTUSB_BCM92035 BIT(4)
45#define BTUSB_BROKEN_ISOC BIT(5)
46#define BTUSB_WRONG_SCO_MTU BIT(6)
47#define BTUSB_ATH3012 BIT(7)
48#define BTUSB_INTEL_COMBINED BIT(8)
49#define BTUSB_INTEL_BOOT BIT(9)
50#define BTUSB_BCM_PATCHRAM BIT(10)
51#define BTUSB_MARVELL BIT(11)
52#define BTUSB_SWAVE BIT(12)
53#define BTUSB_AMP BIT(13)
54#define BTUSB_QCA_ROME BIT(14)
55#define BTUSB_BCM_APPLE BIT(15)
56#define BTUSB_REALTEK BIT(16)
57#define BTUSB_BCM2045 BIT(17)
58#define BTUSB_IFNUM_2 BIT(18)
59#define BTUSB_CW6622 BIT(19)
60#define BTUSB_MEDIATEK BIT(20)
61#define BTUSB_WIDEBAND_SPEECH BIT(21)
62#define BTUSB_INVALID_LE_STATES BIT(22)
63#define BTUSB_QCA_WCN6855 BIT(23)
64#define BTUSB_INTEL_BROKEN_SHUTDOWN_LED BIT(24)
65#define BTUSB_INTEL_BROKEN_INITIAL_NCMD BIT(25)
66#define BTUSB_INTEL_NO_WBS_SUPPORT BIT(26)
67#define BTUSB_ACTIONS_SEMI BIT(27)
68
69static const struct usb_device_id btusb_table[] = {
70 /* Generic Bluetooth USB device */
71 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
72
73 /* Generic Bluetooth AMP device */
74 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP },
75
76 /* Generic Bluetooth USB interface */
77 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) },
78
79 /* Apple-specific (Broadcom) devices */
80 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01),
81 .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 },
82
83 /* MediaTek MT76x0E */
84 { USB_DEVICE(0x0e8d, 0x763f) },
85
86 /* Broadcom SoftSailing reporting vendor specific */
87 { USB_DEVICE(0x0a5c, 0x21e1) },
88
89 /* Apple MacBookPro 7,1 */
90 { USB_DEVICE(0x05ac, 0x8213) },
91
92 /* Apple iMac11,1 */
93 { USB_DEVICE(0x05ac, 0x8215) },
94
95 /* Apple MacBookPro6,2 */
96 { USB_DEVICE(0x05ac, 0x8218) },
97
98 /* Apple MacBookAir3,1, MacBookAir3,2 */
99 { USB_DEVICE(0x05ac, 0x821b) },
100
101 /* Apple MacBookAir4,1 */
102 { USB_DEVICE(0x05ac, 0x821f) },
103
104 /* Apple MacBookPro8,2 */
105 { USB_DEVICE(0x05ac, 0x821a) },
106
107 /* Apple MacMini5,1 */
108 { USB_DEVICE(0x05ac, 0x8281) },
109
110 /* AVM BlueFRITZ! USB v2.0 */
111 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE },
112
113 /* Bluetooth Ultraport Module from IBM */
114 { USB_DEVICE(0x04bf, 0x030a) },
115
116 /* ALPS Modules with non-standard id */
117 { USB_DEVICE(0x044e, 0x3001) },
118 { USB_DEVICE(0x044e, 0x3002) },
119
120 /* Ericsson with non-standard id */
121 { USB_DEVICE(0x0bdb, 0x1002) },
122
123 /* Canyon CN-BTU1 with HID interfaces */
124 { USB_DEVICE(0x0c10, 0x0000) },
125
126 /* Broadcom BCM20702B0 (Dynex/Insignia) */
127 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM },
128
129 /* Broadcom BCM43142A0 (Foxconn/Lenovo) */
130 { USB_VENDOR_AND_INTERFACE_INFO(0x105b, 0xff, 0x01, 0x01),
131 .driver_info = BTUSB_BCM_PATCHRAM },
132
133 /* Broadcom BCM920703 (HTC Vive) */
134 { USB_VENDOR_AND_INTERFACE_INFO(0x0bb4, 0xff, 0x01, 0x01),
135 .driver_info = BTUSB_BCM_PATCHRAM },
136
137 /* Foxconn - Hon Hai */
138 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01),
139 .driver_info = BTUSB_BCM_PATCHRAM },
140
141 /* Lite-On Technology - Broadcom based */
142 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01),
143 .driver_info = BTUSB_BCM_PATCHRAM },
144
145 /* Broadcom devices with vendor specific id */
146 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01),
147 .driver_info = BTUSB_BCM_PATCHRAM },
148
149 /* ASUSTek Computer - Broadcom based */
150 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01),
151 .driver_info = BTUSB_BCM_PATCHRAM },
152
153 /* Belkin F8065bf - Broadcom based */
154 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01),
155 .driver_info = BTUSB_BCM_PATCHRAM },
156
157 /* IMC Networks - Broadcom based */
158 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01),
159 .driver_info = BTUSB_BCM_PATCHRAM },
160
161 /* Dell Computer - Broadcom based */
162 { USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01),
163 .driver_info = BTUSB_BCM_PATCHRAM },
164
165 /* Toshiba Corp - Broadcom based */
166 { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01),
167 .driver_info = BTUSB_BCM_PATCHRAM },
168
169 /* Intel Bluetooth USB Bootloader (RAM module) */
170 { USB_DEVICE(0x8087, 0x0a5a),
171 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
172
173 { } /* Terminating entry */
174};
175
176MODULE_DEVICE_TABLE(usb, btusb_table);
177
178static const struct usb_device_id quirks_table[] = {
179 /* CSR BlueCore devices */
180 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
181
182 /* Broadcom BCM2033 without firmware */
183 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
184
185 /* Broadcom BCM2045 devices */
186 { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 },
187
188 /* Atheros 3011 with sflash firmware */
189 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
190 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
191 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE },
192 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
193 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
194 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
195 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
196
197 /* Atheros AR9285 Malbec with sflash firmware */
198 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
199
200 /* Atheros 3012 with sflash firmware */
201 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
202 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
203 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
204 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
205 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
206 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
207 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
208 { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 },
209 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
210 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
211 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
212 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
213 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
214 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
215 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
216 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
217 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
218 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
219 { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 },
220 { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 },
221 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
222 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
223 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
224 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
225 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
226 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
227 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
228 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
229 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
230 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
231 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
232 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
233 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
234 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 },
235 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
236 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
237 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
238 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
239 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
240 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
241 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
242 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 },
243 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
244 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
245 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
246 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
247 { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 },
248 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
249 { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 },
250 { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 },
251
252 /* Atheros AR5BBU12 with sflash firmware */
253 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
254
255 /* Atheros AR5BBU12 with sflash firmware */
256 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
257 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
258
259 /* QCA ROME chipset */
260 { USB_DEVICE(0x0cf3, 0x535b), .driver_info = BTUSB_QCA_ROME |
261 BTUSB_WIDEBAND_SPEECH },
262 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME |
263 BTUSB_WIDEBAND_SPEECH },
264 { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME |
265 BTUSB_WIDEBAND_SPEECH },
266 { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME |
267 BTUSB_WIDEBAND_SPEECH },
268 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME |
269 BTUSB_WIDEBAND_SPEECH },
270 { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME |
271 BTUSB_WIDEBAND_SPEECH },
272 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME |
273 BTUSB_WIDEBAND_SPEECH },
274 { USB_DEVICE(0x0cf3, 0xe500), .driver_info = BTUSB_QCA_ROME |
275 BTUSB_WIDEBAND_SPEECH },
276 { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME |
277 BTUSB_WIDEBAND_SPEECH },
278 { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME |
279 BTUSB_WIDEBAND_SPEECH },
280 { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME |
281 BTUSB_WIDEBAND_SPEECH },
282 { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME |
283 BTUSB_WIDEBAND_SPEECH },
284 { USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME |
285 BTUSB_WIDEBAND_SPEECH },
286 { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME |
287 BTUSB_WIDEBAND_SPEECH },
288 { USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME |
289 BTUSB_WIDEBAND_SPEECH },
290 { USB_DEVICE(0x04ca, 0x3021), .driver_info = BTUSB_QCA_ROME |
291 BTUSB_WIDEBAND_SPEECH },
292 { USB_DEVICE(0x13d3, 0x3491), .driver_info = BTUSB_QCA_ROME |
293 BTUSB_WIDEBAND_SPEECH },
294 { USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME |
295 BTUSB_WIDEBAND_SPEECH },
296 { USB_DEVICE(0x13d3, 0x3501), .driver_info = BTUSB_QCA_ROME |
297 BTUSB_WIDEBAND_SPEECH },
298
299 /* QCA WCN6855 chipset */
300 { USB_DEVICE(0x0cf3, 0xe600), .driver_info = BTUSB_QCA_WCN6855 |
301 BTUSB_WIDEBAND_SPEECH },
302 { USB_DEVICE(0x0489, 0xe0cc), .driver_info = BTUSB_QCA_WCN6855 |
303 BTUSB_WIDEBAND_SPEECH },
304 { USB_DEVICE(0x0489, 0xe0d6), .driver_info = BTUSB_QCA_WCN6855 |
305 BTUSB_WIDEBAND_SPEECH },
306 { USB_DEVICE(0x0489, 0xe0e3), .driver_info = BTUSB_QCA_WCN6855 |
307 BTUSB_WIDEBAND_SPEECH },
308 { USB_DEVICE(0x10ab, 0x9309), .driver_info = BTUSB_QCA_WCN6855 |
309 BTUSB_WIDEBAND_SPEECH },
310 { USB_DEVICE(0x10ab, 0x9409), .driver_info = BTUSB_QCA_WCN6855 |
311 BTUSB_WIDEBAND_SPEECH },
312 { USB_DEVICE(0x0489, 0xe0d0), .driver_info = BTUSB_QCA_WCN6855 |
313 BTUSB_WIDEBAND_SPEECH },
314 { USB_DEVICE(0x10ab, 0x9108), .driver_info = BTUSB_QCA_WCN6855 |
315 BTUSB_WIDEBAND_SPEECH },
316 { USB_DEVICE(0x10ab, 0x9109), .driver_info = BTUSB_QCA_WCN6855 |
317 BTUSB_WIDEBAND_SPEECH },
318 { USB_DEVICE(0x10ab, 0x9208), .driver_info = BTUSB_QCA_WCN6855 |
319 BTUSB_WIDEBAND_SPEECH },
320 { USB_DEVICE(0x10ab, 0x9209), .driver_info = BTUSB_QCA_WCN6855 |
321 BTUSB_WIDEBAND_SPEECH },
322 { USB_DEVICE(0x10ab, 0x9308), .driver_info = BTUSB_QCA_WCN6855 |
323 BTUSB_WIDEBAND_SPEECH },
324 { USB_DEVICE(0x10ab, 0x9408), .driver_info = BTUSB_QCA_WCN6855 |
325 BTUSB_WIDEBAND_SPEECH },
326 { USB_DEVICE(0x10ab, 0x9508), .driver_info = BTUSB_QCA_WCN6855 |
327 BTUSB_WIDEBAND_SPEECH },
328 { USB_DEVICE(0x10ab, 0x9509), .driver_info = BTUSB_QCA_WCN6855 |
329 BTUSB_WIDEBAND_SPEECH },
330 { USB_DEVICE(0x10ab, 0x9608), .driver_info = BTUSB_QCA_WCN6855 |
331 BTUSB_WIDEBAND_SPEECH },
332 { USB_DEVICE(0x10ab, 0x9609), .driver_info = BTUSB_QCA_WCN6855 |
333 BTUSB_WIDEBAND_SPEECH },
334 { USB_DEVICE(0x10ab, 0x9f09), .driver_info = BTUSB_QCA_WCN6855 |
335 BTUSB_WIDEBAND_SPEECH },
336 { USB_DEVICE(0x04ca, 0x3022), .driver_info = BTUSB_QCA_WCN6855 |
337 BTUSB_WIDEBAND_SPEECH },
338 { USB_DEVICE(0x0489, 0xe0c7), .driver_info = BTUSB_QCA_WCN6855 |
339 BTUSB_WIDEBAND_SPEECH },
340 { USB_DEVICE(0x0489, 0xe0c9), .driver_info = BTUSB_QCA_WCN6855 |
341 BTUSB_WIDEBAND_SPEECH },
342 { USB_DEVICE(0x0489, 0xe0ca), .driver_info = BTUSB_QCA_WCN6855 |
343 BTUSB_WIDEBAND_SPEECH },
344 { USB_DEVICE(0x0489, 0xe0cb), .driver_info = BTUSB_QCA_WCN6855 |
345 BTUSB_WIDEBAND_SPEECH },
346 { USB_DEVICE(0x0489, 0xe0ce), .driver_info = BTUSB_QCA_WCN6855 |
347 BTUSB_WIDEBAND_SPEECH },
348 { USB_DEVICE(0x0489, 0xe0de), .driver_info = BTUSB_QCA_WCN6855 |
349 BTUSB_WIDEBAND_SPEECH },
350 { USB_DEVICE(0x0489, 0xe0df), .driver_info = BTUSB_QCA_WCN6855 |
351 BTUSB_WIDEBAND_SPEECH },
352 { USB_DEVICE(0x0489, 0xe0e1), .driver_info = BTUSB_QCA_WCN6855 |
353 BTUSB_WIDEBAND_SPEECH },
354 { USB_DEVICE(0x0489, 0xe0ea), .driver_info = BTUSB_QCA_WCN6855 |
355 BTUSB_WIDEBAND_SPEECH },
356 { USB_DEVICE(0x0489, 0xe0ec), .driver_info = BTUSB_QCA_WCN6855 |
357 BTUSB_WIDEBAND_SPEECH },
358 { USB_DEVICE(0x04ca, 0x3023), .driver_info = BTUSB_QCA_WCN6855 |
359 BTUSB_WIDEBAND_SPEECH },
360 { USB_DEVICE(0x04ca, 0x3024), .driver_info = BTUSB_QCA_WCN6855 |
361 BTUSB_WIDEBAND_SPEECH },
362 { USB_DEVICE(0x04ca, 0x3a22), .driver_info = BTUSB_QCA_WCN6855 |
363 BTUSB_WIDEBAND_SPEECH },
364 { USB_DEVICE(0x04ca, 0x3a24), .driver_info = BTUSB_QCA_WCN6855 |
365 BTUSB_WIDEBAND_SPEECH },
366 { USB_DEVICE(0x04ca, 0x3a26), .driver_info = BTUSB_QCA_WCN6855 |
367 BTUSB_WIDEBAND_SPEECH },
368 { USB_DEVICE(0x04ca, 0x3a27), .driver_info = BTUSB_QCA_WCN6855 |
369 BTUSB_WIDEBAND_SPEECH },
370
371 /* QCA WCN785x chipset */
372 { USB_DEVICE(0x0cf3, 0xe700), .driver_info = BTUSB_QCA_WCN6855 |
373 BTUSB_WIDEBAND_SPEECH },
374 { USB_DEVICE(0x0489, 0xe0fc), .driver_info = BTUSB_QCA_WCN6855 |
375 BTUSB_WIDEBAND_SPEECH },
376 { USB_DEVICE(0x0489, 0xe0f3), .driver_info = BTUSB_QCA_WCN6855 |
377 BTUSB_WIDEBAND_SPEECH },
378 { USB_DEVICE(0x13d3, 0x3623), .driver_info = BTUSB_QCA_WCN6855 |
379 BTUSB_WIDEBAND_SPEECH },
380 { USB_DEVICE(0x2c7c, 0x0130), .driver_info = BTUSB_QCA_WCN6855 |
381 BTUSB_WIDEBAND_SPEECH },
382
383 /* Broadcom BCM2035 */
384 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
385 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
386 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
387
388 /* Broadcom BCM2045 */
389 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
390 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
391
392 /* IBM/Lenovo ThinkPad with Broadcom chip */
393 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
394 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
395
396 /* HP laptop with Broadcom chip */
397 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
398
399 /* Dell laptop with Broadcom chip */
400 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
401
402 /* Dell Wireless 370 and 410 devices */
403 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
404 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
405
406 /* Belkin F8T012 and F8T013 devices */
407 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
408 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
409
410 /* Asus WL-BTD202 device */
411 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
412
413 /* Kensington Bluetooth USB adapter */
414 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
415
416 /* RTX Telecom based adapters with buggy SCO support */
417 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
418 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
419
420 /* CONWISE Technology based adapters with buggy SCO support */
421 { USB_DEVICE(0x0e5e, 0x6622),
422 .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622},
423
424 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
425 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE },
426
427 /* Digianswer devices */
428 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
429 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
430
431 /* CSR BlueCore Bluetooth Sniffer */
432 { USB_DEVICE(0x0a12, 0x0002),
433 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
434
435 /* Frontline ComProbe Bluetooth Sniffer */
436 { USB_DEVICE(0x16d3, 0x0002),
437 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
438
439 /* Marvell Bluetooth devices */
440 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
441 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
442 { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL },
443
444 /* Intel Bluetooth devices */
445 { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_COMBINED },
446 { USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_COMBINED },
447 { USB_DEVICE(0x8087, 0x0029), .driver_info = BTUSB_INTEL_COMBINED },
448 { USB_DEVICE(0x8087, 0x0032), .driver_info = BTUSB_INTEL_COMBINED },
449 { USB_DEVICE(0x8087, 0x0033), .driver_info = BTUSB_INTEL_COMBINED },
450 { USB_DEVICE(0x8087, 0x0035), .driver_info = BTUSB_INTEL_COMBINED },
451 { USB_DEVICE(0x8087, 0x0036), .driver_info = BTUSB_INTEL_COMBINED },
452 { USB_DEVICE(0x8087, 0x0037), .driver_info = BTUSB_INTEL_COMBINED },
453 { USB_DEVICE(0x8087, 0x0038), .driver_info = BTUSB_INTEL_COMBINED },
454 { USB_DEVICE(0x8087, 0x0039), .driver_info = BTUSB_INTEL_COMBINED },
455 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
456 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL_COMBINED |
457 BTUSB_INTEL_NO_WBS_SUPPORT |
458 BTUSB_INTEL_BROKEN_INITIAL_NCMD |
459 BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
460 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL_COMBINED |
461 BTUSB_INTEL_NO_WBS_SUPPORT |
462 BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
463 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_COMBINED },
464 { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL_COMBINED |
465 BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
466 { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_COMBINED },
467
468 /* Other Intel Bluetooth devices */
469 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
470 .driver_info = BTUSB_IGNORE },
471
472 /* Realtek 8821CE Bluetooth devices */
473 { USB_DEVICE(0x13d3, 0x3529), .driver_info = BTUSB_REALTEK |
474 BTUSB_WIDEBAND_SPEECH },
475
476 /* Realtek 8822CE Bluetooth devices */
477 { USB_DEVICE(0x0bda, 0xb00c), .driver_info = BTUSB_REALTEK |
478 BTUSB_WIDEBAND_SPEECH },
479 { USB_DEVICE(0x0bda, 0xc822), .driver_info = BTUSB_REALTEK |
480 BTUSB_WIDEBAND_SPEECH },
481
482 /* Realtek 8822CU Bluetooth devices */
483 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK |
484 BTUSB_WIDEBAND_SPEECH },
485
486 /* Realtek 8852AE Bluetooth devices */
487 { USB_DEVICE(0x0bda, 0x2852), .driver_info = BTUSB_REALTEK |
488 BTUSB_WIDEBAND_SPEECH },
489 { USB_DEVICE(0x0bda, 0xc852), .driver_info = BTUSB_REALTEK |
490 BTUSB_WIDEBAND_SPEECH },
491 { USB_DEVICE(0x0bda, 0x385a), .driver_info = BTUSB_REALTEK |
492 BTUSB_WIDEBAND_SPEECH },
493 { USB_DEVICE(0x0bda, 0x4852), .driver_info = BTUSB_REALTEK |
494 BTUSB_WIDEBAND_SPEECH },
495 { USB_DEVICE(0x04c5, 0x165c), .driver_info = BTUSB_REALTEK |
496 BTUSB_WIDEBAND_SPEECH },
497 { USB_DEVICE(0x04ca, 0x4006), .driver_info = BTUSB_REALTEK |
498 BTUSB_WIDEBAND_SPEECH },
499 { USB_DEVICE(0x0cb8, 0xc549), .driver_info = BTUSB_REALTEK |
500 BTUSB_WIDEBAND_SPEECH },
501
502 /* Realtek 8852CE Bluetooth devices */
503 { USB_DEVICE(0x04ca, 0x4007), .driver_info = BTUSB_REALTEK |
504 BTUSB_WIDEBAND_SPEECH },
505 { USB_DEVICE(0x04c5, 0x1675), .driver_info = BTUSB_REALTEK |
506 BTUSB_WIDEBAND_SPEECH },
507 { USB_DEVICE(0x0cb8, 0xc558), .driver_info = BTUSB_REALTEK |
508 BTUSB_WIDEBAND_SPEECH },
509 { USB_DEVICE(0x13d3, 0x3587), .driver_info = BTUSB_REALTEK |
510 BTUSB_WIDEBAND_SPEECH },
511 { USB_DEVICE(0x13d3, 0x3586), .driver_info = BTUSB_REALTEK |
512 BTUSB_WIDEBAND_SPEECH },
513 { USB_DEVICE(0x13d3, 0x3592), .driver_info = BTUSB_REALTEK |
514 BTUSB_WIDEBAND_SPEECH },
515 { USB_DEVICE(0x0489, 0xe122), .driver_info = BTUSB_REALTEK |
516 BTUSB_WIDEBAND_SPEECH },
517
518 /* Realtek 8852BE Bluetooth devices */
519 { USB_DEVICE(0x0cb8, 0xc559), .driver_info = BTUSB_REALTEK |
520 BTUSB_WIDEBAND_SPEECH },
521 { USB_DEVICE(0x0bda, 0x4853), .driver_info = BTUSB_REALTEK |
522 BTUSB_WIDEBAND_SPEECH },
523 { USB_DEVICE(0x0bda, 0x887b), .driver_info = BTUSB_REALTEK |
524 BTUSB_WIDEBAND_SPEECH },
525 { USB_DEVICE(0x0bda, 0xb85b), .driver_info = BTUSB_REALTEK |
526 BTUSB_WIDEBAND_SPEECH },
527 { USB_DEVICE(0x13d3, 0x3570), .driver_info = BTUSB_REALTEK |
528 BTUSB_WIDEBAND_SPEECH },
529 { USB_DEVICE(0x13d3, 0x3571), .driver_info = BTUSB_REALTEK |
530 BTUSB_WIDEBAND_SPEECH },
531 { USB_DEVICE(0x13d3, 0x3572), .driver_info = BTUSB_REALTEK |
532 BTUSB_WIDEBAND_SPEECH },
533 { USB_DEVICE(0x13d3, 0x3591), .driver_info = BTUSB_REALTEK |
534 BTUSB_WIDEBAND_SPEECH },
535 { USB_DEVICE(0x0489, 0xe123), .driver_info = BTUSB_REALTEK |
536 BTUSB_WIDEBAND_SPEECH },
537 { USB_DEVICE(0x0489, 0xe125), .driver_info = BTUSB_REALTEK |
538 BTUSB_WIDEBAND_SPEECH },
539
540 /* Realtek 8852BT/8852BE-VT Bluetooth devices */
541 { USB_DEVICE(0x0bda, 0x8520), .driver_info = BTUSB_REALTEK |
542 BTUSB_WIDEBAND_SPEECH },
543
544 /* Realtek 8922AE Bluetooth devices */
545 { USB_DEVICE(0x0bda, 0x8922), .driver_info = BTUSB_REALTEK |
546 BTUSB_WIDEBAND_SPEECH },
547 { USB_DEVICE(0x13d3, 0x3617), .driver_info = BTUSB_REALTEK |
548 BTUSB_WIDEBAND_SPEECH },
549 { USB_DEVICE(0x13d3, 0x3616), .driver_info = BTUSB_REALTEK |
550 BTUSB_WIDEBAND_SPEECH },
551 { USB_DEVICE(0x0489, 0xe130), .driver_info = BTUSB_REALTEK |
552 BTUSB_WIDEBAND_SPEECH },
553
554 /* Realtek Bluetooth devices */
555 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
556 .driver_info = BTUSB_REALTEK },
557
558 /* MediaTek Bluetooth devices */
559 { USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01),
560 .driver_info = BTUSB_MEDIATEK |
561 BTUSB_WIDEBAND_SPEECH },
562
563 /* Additional MediaTek MT7615E Bluetooth devices */
564 { USB_DEVICE(0x13d3, 0x3560), .driver_info = BTUSB_MEDIATEK},
565
566 /* Additional MediaTek MT7663 Bluetooth devices */
567 { USB_DEVICE(0x043e, 0x310c), .driver_info = BTUSB_MEDIATEK |
568 BTUSB_WIDEBAND_SPEECH },
569 { USB_DEVICE(0x04ca, 0x3801), .driver_info = BTUSB_MEDIATEK |
570 BTUSB_WIDEBAND_SPEECH },
571
572 /* Additional MediaTek MT7668 Bluetooth devices */
573 { USB_DEVICE(0x043e, 0x3109), .driver_info = BTUSB_MEDIATEK |
574 BTUSB_WIDEBAND_SPEECH },
575
576 /* Additional MediaTek MT7920 Bluetooth devices */
577 { USB_DEVICE(0x0489, 0xe134), .driver_info = BTUSB_MEDIATEK |
578 BTUSB_WIDEBAND_SPEECH },
579 { USB_DEVICE(0x13d3, 0x3620), .driver_info = BTUSB_MEDIATEK |
580 BTUSB_WIDEBAND_SPEECH },
581 { USB_DEVICE(0x13d3, 0x3621), .driver_info = BTUSB_MEDIATEK |
582 BTUSB_WIDEBAND_SPEECH },
583 { USB_DEVICE(0x13d3, 0x3622), .driver_info = BTUSB_MEDIATEK |
584 BTUSB_WIDEBAND_SPEECH },
585
586 /* Additional MediaTek MT7921 Bluetooth devices */
587 { USB_DEVICE(0x0489, 0xe0c8), .driver_info = BTUSB_MEDIATEK |
588 BTUSB_WIDEBAND_SPEECH },
589 { USB_DEVICE(0x0489, 0xe0cd), .driver_info = BTUSB_MEDIATEK |
590 BTUSB_WIDEBAND_SPEECH },
591 { USB_DEVICE(0x0489, 0xe0e0), .driver_info = BTUSB_MEDIATEK |
592 BTUSB_WIDEBAND_SPEECH },
593 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK |
594 BTUSB_WIDEBAND_SPEECH },
595 { USB_DEVICE(0x04ca, 0x3802), .driver_info = BTUSB_MEDIATEK |
596 BTUSB_WIDEBAND_SPEECH },
597 { USB_DEVICE(0x0e8d, 0x0608), .driver_info = BTUSB_MEDIATEK |
598 BTUSB_WIDEBAND_SPEECH },
599 { USB_DEVICE(0x13d3, 0x3563), .driver_info = BTUSB_MEDIATEK |
600 BTUSB_WIDEBAND_SPEECH },
601 { USB_DEVICE(0x13d3, 0x3564), .driver_info = BTUSB_MEDIATEK |
602 BTUSB_WIDEBAND_SPEECH },
603 { USB_DEVICE(0x13d3, 0x3567), .driver_info = BTUSB_MEDIATEK |
604 BTUSB_WIDEBAND_SPEECH },
605 { USB_DEVICE(0x13d3, 0x3578), .driver_info = BTUSB_MEDIATEK |
606 BTUSB_WIDEBAND_SPEECH },
607 { USB_DEVICE(0x13d3, 0x3583), .driver_info = BTUSB_MEDIATEK |
608 BTUSB_WIDEBAND_SPEECH },
609 { USB_DEVICE(0x13d3, 0x3606), .driver_info = BTUSB_MEDIATEK |
610 BTUSB_WIDEBAND_SPEECH },
611
612 /* MediaTek MT7922 Bluetooth devices */
613 { USB_DEVICE(0x13d3, 0x3585), .driver_info = BTUSB_MEDIATEK |
614 BTUSB_WIDEBAND_SPEECH },
615 { USB_DEVICE(0x13d3, 0x3610), .driver_info = BTUSB_MEDIATEK |
616 BTUSB_WIDEBAND_SPEECH },
617
618 /* MediaTek MT7922A Bluetooth devices */
619 { USB_DEVICE(0x0489, 0xe0d8), .driver_info = BTUSB_MEDIATEK |
620 BTUSB_WIDEBAND_SPEECH },
621 { USB_DEVICE(0x0489, 0xe0d9), .driver_info = BTUSB_MEDIATEK |
622 BTUSB_WIDEBAND_SPEECH },
623 { USB_DEVICE(0x0489, 0xe0e2), .driver_info = BTUSB_MEDIATEK |
624 BTUSB_WIDEBAND_SPEECH },
625 { USB_DEVICE(0x0489, 0xe0e4), .driver_info = BTUSB_MEDIATEK |
626 BTUSB_WIDEBAND_SPEECH },
627 { USB_DEVICE(0x0489, 0xe0f1), .driver_info = BTUSB_MEDIATEK |
628 BTUSB_WIDEBAND_SPEECH },
629 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK |
630 BTUSB_WIDEBAND_SPEECH },
631 { USB_DEVICE(0x0489, 0xe0f5), .driver_info = BTUSB_MEDIATEK |
632 BTUSB_WIDEBAND_SPEECH },
633 { USB_DEVICE(0x0489, 0xe0f6), .driver_info = BTUSB_MEDIATEK |
634 BTUSB_WIDEBAND_SPEECH },
635 { USB_DEVICE(0x0489, 0xe102), .driver_info = BTUSB_MEDIATEK |
636 BTUSB_WIDEBAND_SPEECH },
637 { USB_DEVICE(0x04ca, 0x3804), .driver_info = BTUSB_MEDIATEK |
638 BTUSB_WIDEBAND_SPEECH },
639 { USB_DEVICE(0x04ca, 0x38e4), .driver_info = BTUSB_MEDIATEK |
640 BTUSB_WIDEBAND_SPEECH },
641 { USB_DEVICE(0x13d3, 0x3568), .driver_info = BTUSB_MEDIATEK |
642 BTUSB_WIDEBAND_SPEECH },
643 { USB_DEVICE(0x13d3, 0x3605), .driver_info = BTUSB_MEDIATEK |
644 BTUSB_WIDEBAND_SPEECH },
645 { USB_DEVICE(0x13d3, 0x3607), .driver_info = BTUSB_MEDIATEK |
646 BTUSB_WIDEBAND_SPEECH },
647 { USB_DEVICE(0x13d3, 0x3614), .driver_info = BTUSB_MEDIATEK |
648 BTUSB_WIDEBAND_SPEECH },
649 { USB_DEVICE(0x13d3, 0x3615), .driver_info = BTUSB_MEDIATEK |
650 BTUSB_WIDEBAND_SPEECH },
651 { USB_DEVICE(0x35f5, 0x7922), .driver_info = BTUSB_MEDIATEK |
652 BTUSB_WIDEBAND_SPEECH },
653
654 /* Additional MediaTek MT7925 Bluetooth devices */
655 { USB_DEVICE(0x0489, 0xe111), .driver_info = BTUSB_MEDIATEK |
656 BTUSB_WIDEBAND_SPEECH },
657 { USB_DEVICE(0x0489, 0xe113), .driver_info = BTUSB_MEDIATEK |
658 BTUSB_WIDEBAND_SPEECH },
659 { USB_DEVICE(0x0489, 0xe118), .driver_info = BTUSB_MEDIATEK |
660 BTUSB_WIDEBAND_SPEECH },
661 { USB_DEVICE(0x0489, 0xe11e), .driver_info = BTUSB_MEDIATEK |
662 BTUSB_WIDEBAND_SPEECH },
663 { USB_DEVICE(0x0489, 0xe124), .driver_info = BTUSB_MEDIATEK |
664 BTUSB_WIDEBAND_SPEECH },
665 { USB_DEVICE(0x0489, 0xe139), .driver_info = BTUSB_MEDIATEK |
666 BTUSB_WIDEBAND_SPEECH },
667 { USB_DEVICE(0x0489, 0xe14f), .driver_info = BTUSB_MEDIATEK |
668 BTUSB_WIDEBAND_SPEECH },
669 { USB_DEVICE(0x0489, 0xe150), .driver_info = BTUSB_MEDIATEK |
670 BTUSB_WIDEBAND_SPEECH },
671 { USB_DEVICE(0x0489, 0xe151), .driver_info = BTUSB_MEDIATEK |
672 BTUSB_WIDEBAND_SPEECH },
673 { USB_DEVICE(0x13d3, 0x3602), .driver_info = BTUSB_MEDIATEK |
674 BTUSB_WIDEBAND_SPEECH },
675 { USB_DEVICE(0x13d3, 0x3603), .driver_info = BTUSB_MEDIATEK |
676 BTUSB_WIDEBAND_SPEECH },
677 { USB_DEVICE(0x13d3, 0x3604), .driver_info = BTUSB_MEDIATEK |
678 BTUSB_WIDEBAND_SPEECH },
679 { USB_DEVICE(0x13d3, 0x3608), .driver_info = BTUSB_MEDIATEK |
680 BTUSB_WIDEBAND_SPEECH },
681 { USB_DEVICE(0x13d3, 0x3628), .driver_info = BTUSB_MEDIATEK |
682 BTUSB_WIDEBAND_SPEECH },
683
684 /* Additional Realtek 8723AE Bluetooth devices */
685 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
686 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
687
688 /* Additional Realtek 8723BE Bluetooth devices */
689 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
690 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
691 { USB_DEVICE(0x04f2, 0xb49f), .driver_info = BTUSB_REALTEK },
692 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
693 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
694 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
695 { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK },
696
697 /* Additional Realtek 8723BU Bluetooth devices */
698 { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK },
699
700 /* Additional Realtek 8723DE Bluetooth devices */
701 { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK },
702 { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK },
703
704 /* Additional Realtek 8761BUV Bluetooth devices */
705 { USB_DEVICE(0x2357, 0x0604), .driver_info = BTUSB_REALTEK |
706 BTUSB_WIDEBAND_SPEECH },
707 { USB_DEVICE(0x0b05, 0x190e), .driver_info = BTUSB_REALTEK |
708 BTUSB_WIDEBAND_SPEECH },
709 { USB_DEVICE(0x2550, 0x8761), .driver_info = BTUSB_REALTEK |
710 BTUSB_WIDEBAND_SPEECH },
711 { USB_DEVICE(0x0bda, 0x8771), .driver_info = BTUSB_REALTEK |
712 BTUSB_WIDEBAND_SPEECH },
713 { USB_DEVICE(0x6655, 0x8771), .driver_info = BTUSB_REALTEK |
714 BTUSB_WIDEBAND_SPEECH },
715 { USB_DEVICE(0x7392, 0xc611), .driver_info = BTUSB_REALTEK |
716 BTUSB_WIDEBAND_SPEECH },
717 { USB_DEVICE(0x2b89, 0x8761), .driver_info = BTUSB_REALTEK |
718 BTUSB_WIDEBAND_SPEECH },
719
720 /* Additional Realtek 8821AE Bluetooth devices */
721 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
722 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
723 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
724 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
725 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
726
727 /* Additional Realtek 8822BE Bluetooth devices */
728 { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK },
729 { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK },
730
731 /* Additional Realtek 8822CE Bluetooth devices */
732 { USB_DEVICE(0x04ca, 0x4005), .driver_info = BTUSB_REALTEK |
733 BTUSB_WIDEBAND_SPEECH },
734 { USB_DEVICE(0x04c5, 0x161f), .driver_info = BTUSB_REALTEK |
735 BTUSB_WIDEBAND_SPEECH },
736 { USB_DEVICE(0x0b05, 0x18ef), .driver_info = BTUSB_REALTEK |
737 BTUSB_WIDEBAND_SPEECH },
738 { USB_DEVICE(0x13d3, 0x3548), .driver_info = BTUSB_REALTEK |
739 BTUSB_WIDEBAND_SPEECH },
740 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK |
741 BTUSB_WIDEBAND_SPEECH },
742 { USB_DEVICE(0x13d3, 0x3553), .driver_info = BTUSB_REALTEK |
743 BTUSB_WIDEBAND_SPEECH },
744 { USB_DEVICE(0x13d3, 0x3555), .driver_info = BTUSB_REALTEK |
745 BTUSB_WIDEBAND_SPEECH },
746 { USB_DEVICE(0x2ff8, 0x3051), .driver_info = BTUSB_REALTEK |
747 BTUSB_WIDEBAND_SPEECH },
748 { USB_DEVICE(0x1358, 0xc123), .driver_info = BTUSB_REALTEK |
749 BTUSB_WIDEBAND_SPEECH },
750 { USB_DEVICE(0x0bda, 0xc123), .driver_info = BTUSB_REALTEK |
751 BTUSB_WIDEBAND_SPEECH },
752 { USB_DEVICE(0x0cb5, 0xc547), .driver_info = BTUSB_REALTEK |
753 BTUSB_WIDEBAND_SPEECH },
754
755 /* Actions Semiconductor ATS2851 based devices */
756 { USB_DEVICE(0x10d7, 0xb012), .driver_info = BTUSB_ACTIONS_SEMI },
757
758 /* Silicon Wave based devices */
759 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE },
760
761 { } /* Terminating entry */
762};
763
764/* The Bluetooth USB module build into some devices needs to be reset on resume,
765 * this is a problem with the platform (likely shutting off all power) not with
766 * the module itself. So we use a DMI list to match known broken platforms.
767 */
768static const struct dmi_system_id btusb_needs_reset_resume_table[] = {
769 {
770 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */
771 .matches = {
772 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
773 DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"),
774 },
775 },
776 {
777 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */
778 .matches = {
779 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
780 DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"),
781 },
782 },
783 {
784 /* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */
785 .matches = {
786 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
787 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"),
788 },
789 },
790 {}
791};
792
793struct qca_dump_info {
794 /* fields for dump collection */
795 u16 id_vendor;
796 u16 id_product;
797 u32 fw_version;
798 u32 controller_id;
799 u32 ram_dump_size;
800 u16 ram_dump_seqno;
801};
802
803#define BTUSB_MAX_ISOC_FRAMES 10
804
805#define BTUSB_INTR_RUNNING 0
806#define BTUSB_BULK_RUNNING 1
807#define BTUSB_ISOC_RUNNING 2
808#define BTUSB_SUSPENDING 3
809#define BTUSB_DID_ISO_RESUME 4
810#define BTUSB_BOOTLOADER 5
811#define BTUSB_DOWNLOADING 6
812#define BTUSB_FIRMWARE_LOADED 7
813#define BTUSB_FIRMWARE_FAILED 8
814#define BTUSB_BOOTING 9
815#define BTUSB_DIAG_RUNNING 10
816#define BTUSB_OOB_WAKE_ENABLED 11
817#define BTUSB_HW_RESET_ACTIVE 12
818#define BTUSB_TX_WAIT_VND_EVT 13
819#define BTUSB_WAKEUP_AUTOSUSPEND 14
820#define BTUSB_USE_ALT3_FOR_WBS 15
821#define BTUSB_ALT6_CONTINUOUS_TX 16
822#define BTUSB_HW_SSR_ACTIVE 17
823
824struct btusb_data {
825 struct hci_dev *hdev;
826 struct usb_device *udev;
827 struct usb_interface *intf;
828 struct usb_interface *isoc;
829 struct usb_interface *diag;
830 unsigned isoc_ifnum;
831
832 unsigned long flags;
833
834 bool poll_sync;
835 int intr_interval;
836 struct work_struct work;
837 struct work_struct waker;
838 struct delayed_work rx_work;
839
840 struct sk_buff_head acl_q;
841
842 struct usb_anchor deferred;
843 struct usb_anchor tx_anchor;
844 int tx_in_flight;
845 spinlock_t txlock;
846
847 struct usb_anchor intr_anchor;
848 struct usb_anchor bulk_anchor;
849 struct usb_anchor isoc_anchor;
850 struct usb_anchor diag_anchor;
851 struct usb_anchor ctrl_anchor;
852 spinlock_t rxlock;
853
854 struct sk_buff *evt_skb;
855 struct sk_buff *acl_skb;
856 struct sk_buff *sco_skb;
857
858 struct usb_endpoint_descriptor *intr_ep;
859 struct usb_endpoint_descriptor *bulk_tx_ep;
860 struct usb_endpoint_descriptor *bulk_rx_ep;
861 struct usb_endpoint_descriptor *isoc_tx_ep;
862 struct usb_endpoint_descriptor *isoc_rx_ep;
863 struct usb_endpoint_descriptor *diag_tx_ep;
864 struct usb_endpoint_descriptor *diag_rx_ep;
865
866 struct gpio_desc *reset_gpio;
867
868 __u8 cmdreq_type;
869 __u8 cmdreq;
870
871 unsigned int sco_num;
872 unsigned int air_mode;
873 bool usb_alt6_packet_flow;
874 int isoc_altsetting;
875 int suspend_count;
876
877 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
878 int (*recv_acl)(struct hci_dev *hdev, struct sk_buff *skb);
879 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
880
881 int (*setup_on_usb)(struct hci_dev *hdev);
882
883 int (*suspend)(struct hci_dev *hdev);
884 int (*resume)(struct hci_dev *hdev);
885 int (*disconnect)(struct hci_dev *hdev);
886
887 int oob_wake_irq; /* irq for out-of-band wake-on-bt */
888 unsigned cmd_timeout_cnt;
889
890 struct qca_dump_info qca_dump;
891};
892
893static void btusb_reset(struct hci_dev *hdev)
894{
895 struct btusb_data *data;
896 int err;
897
898 if (hdev->reset) {
899 hdev->reset(hdev);
900 return;
901 }
902
903 data = hci_get_drvdata(hdev);
904 /* This is not an unbalanced PM reference since the device will reset */
905 err = usb_autopm_get_interface(data->intf);
906 if (err) {
907 bt_dev_err(hdev, "Failed usb_autopm_get_interface: %d", err);
908 return;
909 }
910
911 bt_dev_err(hdev, "Resetting usb device.");
912 usb_queue_reset_device(data->intf);
913}
914
915static void btusb_intel_cmd_timeout(struct hci_dev *hdev)
916{
917 struct btusb_data *data = hci_get_drvdata(hdev);
918 struct gpio_desc *reset_gpio = data->reset_gpio;
919 struct btintel_data *intel_data = hci_get_priv(hdev);
920
921 if (++data->cmd_timeout_cnt < 5)
922 return;
923
924 if (intel_data->acpi_reset_method) {
925 if (test_and_set_bit(INTEL_ACPI_RESET_ACTIVE, intel_data->flags)) {
926 bt_dev_err(hdev, "acpi: last reset failed ? Not resetting again");
927 return;
928 }
929
930 bt_dev_err(hdev, "Initiating acpi reset method");
931 /* If ACPI reset method fails, lets try with legacy GPIO
932 * toggling
933 */
934 if (!intel_data->acpi_reset_method(hdev)) {
935 return;
936 }
937 }
938
939 if (!reset_gpio) {
940 btusb_reset(hdev);
941 return;
942 }
943
944 /*
945 * Toggle the hard reset line if the platform provides one. The reset
946 * is going to yank the device off the USB and then replug. So doing
947 * once is enough. The cleanup is handled correctly on the way out
948 * (standard USB disconnect), and the new device is detected cleanly
949 * and bound to the driver again like it should be.
950 */
951 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
952 bt_dev_err(hdev, "last reset failed? Not resetting again");
953 return;
954 }
955
956 bt_dev_err(hdev, "Initiating HW reset via gpio");
957 gpiod_set_value_cansleep(reset_gpio, 1);
958 msleep(100);
959 gpiod_set_value_cansleep(reset_gpio, 0);
960}
961
962#define RTK_DEVCOREDUMP_CODE_MEMDUMP 0x01
963#define RTK_DEVCOREDUMP_CODE_HW_ERR 0x02
964#define RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT 0x03
965
966#define RTK_SUB_EVENT_CODE_COREDUMP 0x34
967
968struct rtk_dev_coredump_hdr {
969 u8 type;
970 u8 code;
971 u8 reserved[2];
972} __packed;
973
974static inline void btusb_rtl_alloc_devcoredump(struct hci_dev *hdev,
975 struct rtk_dev_coredump_hdr *hdr, u8 *buf, u32 len)
976{
977 struct sk_buff *skb;
978
979 skb = alloc_skb(len + sizeof(*hdr), GFP_ATOMIC);
980 if (!skb)
981 return;
982
983 skb_put_data(skb, hdr, sizeof(*hdr));
984 if (len)
985 skb_put_data(skb, buf, len);
986
987 if (!hci_devcd_init(hdev, skb->len)) {
988 hci_devcd_append(hdev, skb);
989 hci_devcd_complete(hdev);
990 } else {
991 bt_dev_err(hdev, "RTL: Failed to generate devcoredump");
992 kfree_skb(skb);
993 }
994}
995
996static void btusb_rtl_cmd_timeout(struct hci_dev *hdev)
997{
998 struct btusb_data *data = hci_get_drvdata(hdev);
999 struct gpio_desc *reset_gpio = data->reset_gpio;
1000 struct rtk_dev_coredump_hdr hdr = {
1001 .type = RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT,
1002 };
1003
1004 btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0);
1005
1006 if (++data->cmd_timeout_cnt < 5)
1007 return;
1008
1009 if (!reset_gpio) {
1010 btusb_reset(hdev);
1011 return;
1012 }
1013
1014 /* Toggle the hard reset line. The Realtek device is going to
1015 * yank itself off the USB and then replug. The cleanup is handled
1016 * correctly on the way out (standard USB disconnect), and the new
1017 * device is detected cleanly and bound to the driver again like
1018 * it should be.
1019 */
1020 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
1021 bt_dev_err(hdev, "last reset failed? Not resetting again");
1022 return;
1023 }
1024
1025 bt_dev_err(hdev, "Reset Realtek device via gpio");
1026 gpiod_set_value_cansleep(reset_gpio, 1);
1027 msleep(200);
1028 gpiod_set_value_cansleep(reset_gpio, 0);
1029}
1030
1031static void btusb_rtl_hw_error(struct hci_dev *hdev, u8 code)
1032{
1033 struct rtk_dev_coredump_hdr hdr = {
1034 .type = RTK_DEVCOREDUMP_CODE_HW_ERR,
1035 .code = code,
1036 };
1037
1038 bt_dev_err(hdev, "RTL: hw err, trigger devcoredump (%d)", code);
1039
1040 btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0);
1041}
1042
1043static void btusb_qca_cmd_timeout(struct hci_dev *hdev)
1044{
1045 struct btusb_data *data = hci_get_drvdata(hdev);
1046 struct gpio_desc *reset_gpio = data->reset_gpio;
1047
1048 if (test_bit(BTUSB_HW_SSR_ACTIVE, &data->flags)) {
1049 bt_dev_info(hdev, "Ramdump in progress, defer cmd_timeout");
1050 return;
1051 }
1052
1053 if (++data->cmd_timeout_cnt < 5)
1054 return;
1055
1056 if (reset_gpio) {
1057 bt_dev_err(hdev, "Reset qca device via bt_en gpio");
1058
1059 /* Toggle the hard reset line. The qca bt device is going to
1060 * yank itself off the USB and then replug. The cleanup is handled
1061 * correctly on the way out (standard USB disconnect), and the new
1062 * device is detected cleanly and bound to the driver again like
1063 * it should be.
1064 */
1065 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
1066 bt_dev_err(hdev, "last reset failed? Not resetting again");
1067 return;
1068 }
1069
1070 gpiod_set_value_cansleep(reset_gpio, 0);
1071 msleep(200);
1072 gpiod_set_value_cansleep(reset_gpio, 1);
1073
1074 return;
1075 }
1076
1077 btusb_reset(hdev);
1078}
1079
1080static inline void btusb_free_frags(struct btusb_data *data)
1081{
1082 unsigned long flags;
1083
1084 spin_lock_irqsave(&data->rxlock, flags);
1085
1086 dev_kfree_skb_irq(data->evt_skb);
1087 data->evt_skb = NULL;
1088
1089 dev_kfree_skb_irq(data->acl_skb);
1090 data->acl_skb = NULL;
1091
1092 dev_kfree_skb_irq(data->sco_skb);
1093 data->sco_skb = NULL;
1094
1095 spin_unlock_irqrestore(&data->rxlock, flags);
1096}
1097
1098static int btusb_recv_event(struct btusb_data *data, struct sk_buff *skb)
1099{
1100 if (data->intr_interval) {
1101 /* Trigger dequeue immediately if an event is received */
1102 schedule_delayed_work(&data->rx_work, 0);
1103 }
1104
1105 return data->recv_event(data->hdev, skb);
1106}
1107
1108static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
1109{
1110 struct sk_buff *skb;
1111 unsigned long flags;
1112 int err = 0;
1113
1114 spin_lock_irqsave(&data->rxlock, flags);
1115 skb = data->evt_skb;
1116
1117 while (count) {
1118 int len;
1119
1120 if (!skb) {
1121 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
1122 if (!skb) {
1123 err = -ENOMEM;
1124 break;
1125 }
1126
1127 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
1128 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE;
1129 }
1130
1131 len = min_t(uint, hci_skb_expect(skb), count);
1132 skb_put_data(skb, buffer, len);
1133
1134 count -= len;
1135 buffer += len;
1136 hci_skb_expect(skb) -= len;
1137
1138 if (skb->len == HCI_EVENT_HDR_SIZE) {
1139 /* Complete event header */
1140 hci_skb_expect(skb) = hci_event_hdr(skb)->plen;
1141
1142 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
1143 kfree_skb(skb);
1144 skb = NULL;
1145
1146 err = -EILSEQ;
1147 break;
1148 }
1149 }
1150
1151 if (!hci_skb_expect(skb)) {
1152 /* Complete frame */
1153 btusb_recv_event(data, skb);
1154 skb = NULL;
1155 }
1156 }
1157
1158 data->evt_skb = skb;
1159 spin_unlock_irqrestore(&data->rxlock, flags);
1160
1161 return err;
1162}
1163
1164static int btusb_recv_acl(struct btusb_data *data, struct sk_buff *skb)
1165{
1166 /* Only queue ACL packet if intr_interval is set as it means
1167 * force_poll_sync has been enabled.
1168 */
1169 if (!data->intr_interval)
1170 return data->recv_acl(data->hdev, skb);
1171
1172 skb_queue_tail(&data->acl_q, skb);
1173 schedule_delayed_work(&data->rx_work, data->intr_interval);
1174
1175 return 0;
1176}
1177
1178static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
1179{
1180 struct sk_buff *skb;
1181 unsigned long flags;
1182 int err = 0;
1183
1184 spin_lock_irqsave(&data->rxlock, flags);
1185 skb = data->acl_skb;
1186
1187 while (count) {
1188 int len;
1189
1190 if (!skb) {
1191 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
1192 if (!skb) {
1193 err = -ENOMEM;
1194 break;
1195 }
1196
1197 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT;
1198 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE;
1199 }
1200
1201 len = min_t(uint, hci_skb_expect(skb), count);
1202 skb_put_data(skb, buffer, len);
1203
1204 count -= len;
1205 buffer += len;
1206 hci_skb_expect(skb) -= len;
1207
1208 if (skb->len == HCI_ACL_HDR_SIZE) {
1209 __le16 dlen = hci_acl_hdr(skb)->dlen;
1210
1211 /* Complete ACL header */
1212 hci_skb_expect(skb) = __le16_to_cpu(dlen);
1213
1214 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
1215 kfree_skb(skb);
1216 skb = NULL;
1217
1218 err = -EILSEQ;
1219 break;
1220 }
1221 }
1222
1223 if (!hci_skb_expect(skb)) {
1224 /* Complete frame */
1225 btusb_recv_acl(data, skb);
1226 skb = NULL;
1227 }
1228 }
1229
1230 data->acl_skb = skb;
1231 spin_unlock_irqrestore(&data->rxlock, flags);
1232
1233 return err;
1234}
1235
1236static bool btusb_validate_sco_handle(struct hci_dev *hdev,
1237 struct hci_sco_hdr *hdr)
1238{
1239 __u16 handle;
1240
1241 if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL))
1242 // Can't validate, userspace controls everything.
1243 return true;
1244
1245 /*
1246 * USB isochronous transfers are not designed to be reliable and may
1247 * lose fragments. When this happens, the next first fragment
1248 * encountered might actually be a continuation fragment.
1249 * Validate the handle to detect it and drop it, or else the upper
1250 * layer will get garbage for a while.
1251 */
1252
1253 handle = hci_handle(__le16_to_cpu(hdr->handle));
1254
1255 switch (hci_conn_lookup_type(hdev, handle)) {
1256 case SCO_LINK:
1257 case ESCO_LINK:
1258 return true;
1259 default:
1260 return false;
1261 }
1262}
1263
1264static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
1265{
1266 struct sk_buff *skb;
1267 unsigned long flags;
1268 int err = 0;
1269
1270 spin_lock_irqsave(&data->rxlock, flags);
1271 skb = data->sco_skb;
1272
1273 while (count) {
1274 int len;
1275
1276 if (!skb) {
1277 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
1278 if (!skb) {
1279 err = -ENOMEM;
1280 break;
1281 }
1282
1283 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT;
1284 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE;
1285 }
1286
1287 len = min_t(uint, hci_skb_expect(skb), count);
1288 skb_put_data(skb, buffer, len);
1289
1290 count -= len;
1291 buffer += len;
1292 hci_skb_expect(skb) -= len;
1293
1294 if (skb->len == HCI_SCO_HDR_SIZE) {
1295 /* Complete SCO header */
1296 struct hci_sco_hdr *hdr = hci_sco_hdr(skb);
1297
1298 hci_skb_expect(skb) = hdr->dlen;
1299
1300 if (skb_tailroom(skb) < hci_skb_expect(skb) ||
1301 !btusb_validate_sco_handle(data->hdev, hdr)) {
1302 kfree_skb(skb);
1303 skb = NULL;
1304
1305 err = -EILSEQ;
1306 break;
1307 }
1308 }
1309
1310 if (!hci_skb_expect(skb)) {
1311 /* Complete frame */
1312 hci_recv_frame(data->hdev, skb);
1313 skb = NULL;
1314 }
1315 }
1316
1317 data->sco_skb = skb;
1318 spin_unlock_irqrestore(&data->rxlock, flags);
1319
1320 return err;
1321}
1322
1323static void btusb_intr_complete(struct urb *urb)
1324{
1325 struct hci_dev *hdev = urb->context;
1326 struct btusb_data *data = hci_get_drvdata(hdev);
1327 int err;
1328
1329 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1330 urb->actual_length);
1331
1332 if (!test_bit(HCI_RUNNING, &hdev->flags))
1333 return;
1334
1335 if (urb->status == 0) {
1336 hdev->stat.byte_rx += urb->actual_length;
1337
1338 if (btusb_recv_intr(data, urb->transfer_buffer,
1339 urb->actual_length) < 0) {
1340 bt_dev_err(hdev, "corrupted event packet");
1341 hdev->stat.err_rx++;
1342 }
1343 } else if (urb->status == -ENOENT) {
1344 /* Avoid suspend failed when usb_kill_urb */
1345 return;
1346 }
1347
1348 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
1349 return;
1350
1351 usb_mark_last_busy(data->udev);
1352 usb_anchor_urb(urb, &data->intr_anchor);
1353
1354 err = usb_submit_urb(urb, GFP_ATOMIC);
1355 if (err < 0) {
1356 /* -EPERM: urb is being killed;
1357 * -ENODEV: device got disconnected
1358 */
1359 if (err != -EPERM && err != -ENODEV)
1360 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1361 urb, -err);
1362 if (err != -EPERM)
1363 hci_cmd_sync_cancel(hdev, -err);
1364 usb_unanchor_urb(urb);
1365 }
1366}
1367
1368static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
1369{
1370 struct btusb_data *data = hci_get_drvdata(hdev);
1371 struct urb *urb;
1372 unsigned char *buf;
1373 unsigned int pipe;
1374 int err, size;
1375
1376 BT_DBG("%s", hdev->name);
1377
1378 if (!data->intr_ep)
1379 return -ENODEV;
1380
1381 urb = usb_alloc_urb(0, mem_flags);
1382 if (!urb)
1383 return -ENOMEM;
1384
1385 if (le16_to_cpu(data->udev->descriptor.idVendor) == 0x0a12 &&
1386 le16_to_cpu(data->udev->descriptor.idProduct) == 0x0001)
1387 /* Fake CSR devices don't seem to support sort-transter */
1388 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
1389 else
1390 /* Use maximum HCI Event size so the USB stack handles
1391 * ZPL/short-transfer automatically.
1392 */
1393 size = HCI_MAX_EVENT_SIZE;
1394
1395 buf = kmalloc(size, mem_flags);
1396 if (!buf) {
1397 usb_free_urb(urb);
1398 return -ENOMEM;
1399 }
1400
1401 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
1402
1403 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
1404 btusb_intr_complete, hdev, data->intr_ep->bInterval);
1405
1406 urb->transfer_flags |= URB_FREE_BUFFER;
1407
1408 usb_anchor_urb(urb, &data->intr_anchor);
1409
1410 err = usb_submit_urb(urb, mem_flags);
1411 if (err < 0) {
1412 if (err != -EPERM && err != -ENODEV)
1413 bt_dev_err(hdev, "urb %p submission failed (%d)",
1414 urb, -err);
1415 if (err != -EPERM)
1416 hci_cmd_sync_cancel(hdev, -err);
1417 usb_unanchor_urb(urb);
1418 }
1419
1420 /* Only initialize intr_interval if URB poll sync is enabled */
1421 if (!data->poll_sync)
1422 goto done;
1423
1424 /* The units are frames (milliseconds) for full and low speed devices,
1425 * and microframes (1/8 millisecond) for highspeed and SuperSpeed
1426 * devices.
1427 *
1428 * This is done once on open/resume so it shouldn't change even if
1429 * force_poll_sync changes.
1430 */
1431 switch (urb->dev->speed) {
1432 case USB_SPEED_SUPER_PLUS:
1433 case USB_SPEED_SUPER: /* units are 125us */
1434 data->intr_interval = usecs_to_jiffies(urb->interval * 125);
1435 break;
1436 default:
1437 data->intr_interval = msecs_to_jiffies(urb->interval);
1438 break;
1439 }
1440
1441done:
1442 usb_free_urb(urb);
1443
1444 return err;
1445}
1446
1447static void btusb_bulk_complete(struct urb *urb)
1448{
1449 struct hci_dev *hdev = urb->context;
1450 struct btusb_data *data = hci_get_drvdata(hdev);
1451 int err;
1452
1453 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1454 urb->actual_length);
1455
1456 if (!test_bit(HCI_RUNNING, &hdev->flags))
1457 return;
1458
1459 if (urb->status == 0) {
1460 hdev->stat.byte_rx += urb->actual_length;
1461
1462 if (data->recv_bulk(data, urb->transfer_buffer,
1463 urb->actual_length) < 0) {
1464 bt_dev_err(hdev, "corrupted ACL packet");
1465 hdev->stat.err_rx++;
1466 }
1467 } else if (urb->status == -ENOENT) {
1468 /* Avoid suspend failed when usb_kill_urb */
1469 return;
1470 }
1471
1472 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
1473 return;
1474
1475 usb_anchor_urb(urb, &data->bulk_anchor);
1476 usb_mark_last_busy(data->udev);
1477
1478 err = usb_submit_urb(urb, GFP_ATOMIC);
1479 if (err < 0) {
1480 /* -EPERM: urb is being killed;
1481 * -ENODEV: device got disconnected
1482 */
1483 if (err != -EPERM && err != -ENODEV)
1484 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1485 urb, -err);
1486 usb_unanchor_urb(urb);
1487 }
1488}
1489
1490static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
1491{
1492 struct btusb_data *data = hci_get_drvdata(hdev);
1493 struct urb *urb;
1494 unsigned char *buf;
1495 unsigned int pipe;
1496 int err, size = HCI_MAX_FRAME_SIZE;
1497
1498 BT_DBG("%s", hdev->name);
1499
1500 if (!data->bulk_rx_ep)
1501 return -ENODEV;
1502
1503 urb = usb_alloc_urb(0, mem_flags);
1504 if (!urb)
1505 return -ENOMEM;
1506
1507 buf = kmalloc(size, mem_flags);
1508 if (!buf) {
1509 usb_free_urb(urb);
1510 return -ENOMEM;
1511 }
1512
1513 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
1514
1515 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1516 btusb_bulk_complete, hdev);
1517
1518 urb->transfer_flags |= URB_FREE_BUFFER;
1519
1520 usb_mark_last_busy(data->udev);
1521 usb_anchor_urb(urb, &data->bulk_anchor);
1522
1523 err = usb_submit_urb(urb, mem_flags);
1524 if (err < 0) {
1525 if (err != -EPERM && err != -ENODEV)
1526 bt_dev_err(hdev, "urb %p submission failed (%d)",
1527 urb, -err);
1528 usb_unanchor_urb(urb);
1529 }
1530
1531 usb_free_urb(urb);
1532
1533 return err;
1534}
1535
1536static void btusb_isoc_complete(struct urb *urb)
1537{
1538 struct hci_dev *hdev = urb->context;
1539 struct btusb_data *data = hci_get_drvdata(hdev);
1540 int i, err;
1541
1542 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1543 urb->actual_length);
1544
1545 if (!test_bit(HCI_RUNNING, &hdev->flags))
1546 return;
1547
1548 if (urb->status == 0) {
1549 for (i = 0; i < urb->number_of_packets; i++) {
1550 unsigned int offset = urb->iso_frame_desc[i].offset;
1551 unsigned int length = urb->iso_frame_desc[i].actual_length;
1552
1553 if (urb->iso_frame_desc[i].status)
1554 continue;
1555
1556 hdev->stat.byte_rx += length;
1557
1558 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
1559 length) < 0) {
1560 bt_dev_err(hdev, "corrupted SCO packet");
1561 hdev->stat.err_rx++;
1562 }
1563 }
1564 } else if (urb->status == -ENOENT) {
1565 /* Avoid suspend failed when usb_kill_urb */
1566 return;
1567 }
1568
1569 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
1570 return;
1571
1572 usb_anchor_urb(urb, &data->isoc_anchor);
1573
1574 err = usb_submit_urb(urb, GFP_ATOMIC);
1575 if (err < 0) {
1576 /* -EPERM: urb is being killed;
1577 * -ENODEV: device got disconnected
1578 */
1579 if (err != -EPERM && err != -ENODEV)
1580 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1581 urb, -err);
1582 usb_unanchor_urb(urb);
1583 }
1584}
1585
1586static inline void __fill_isoc_descriptor_msbc(struct urb *urb, int len,
1587 int mtu, struct btusb_data *data)
1588{
1589 int i = 0, offset = 0;
1590 unsigned int interval;
1591
1592 BT_DBG("len %d mtu %d", len, mtu);
1593
1594 /* For mSBC ALT 6 settings some chips need to transmit the data
1595 * continuously without the zero length of USB packets.
1596 */
1597 if (test_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags))
1598 goto ignore_usb_alt6_packet_flow;
1599
1600 /* For mSBC ALT 6 setting the host will send the packet at continuous
1601 * flow. As per core spec 5, vol 4, part B, table 2.1. For ALT setting
1602 * 6 the HCI PACKET INTERVAL should be 7.5ms for every usb packets.
1603 * To maintain the rate we send 63bytes of usb packets alternatively for
1604 * 7ms and 8ms to maintain the rate as 7.5ms.
1605 */
1606 if (data->usb_alt6_packet_flow) {
1607 interval = 7;
1608 data->usb_alt6_packet_flow = false;
1609 } else {
1610 interval = 6;
1611 data->usb_alt6_packet_flow = true;
1612 }
1613
1614 for (i = 0; i < interval; i++) {
1615 urb->iso_frame_desc[i].offset = offset;
1616 urb->iso_frame_desc[i].length = offset;
1617 }
1618
1619ignore_usb_alt6_packet_flow:
1620 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1621 urb->iso_frame_desc[i].offset = offset;
1622 urb->iso_frame_desc[i].length = len;
1623 i++;
1624 }
1625
1626 urb->number_of_packets = i;
1627}
1628
1629static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
1630{
1631 int i, offset = 0;
1632
1633 BT_DBG("len %d mtu %d", len, mtu);
1634
1635 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
1636 i++, offset += mtu, len -= mtu) {
1637 urb->iso_frame_desc[i].offset = offset;
1638 urb->iso_frame_desc[i].length = mtu;
1639 }
1640
1641 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1642 urb->iso_frame_desc[i].offset = offset;
1643 urb->iso_frame_desc[i].length = len;
1644 i++;
1645 }
1646
1647 urb->number_of_packets = i;
1648}
1649
1650static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
1651{
1652 struct btusb_data *data = hci_get_drvdata(hdev);
1653 struct urb *urb;
1654 unsigned char *buf;
1655 unsigned int pipe;
1656 int err, size;
1657
1658 BT_DBG("%s", hdev->name);
1659
1660 if (!data->isoc_rx_ep)
1661 return -ENODEV;
1662
1663 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
1664 if (!urb)
1665 return -ENOMEM;
1666
1667 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
1668 BTUSB_MAX_ISOC_FRAMES;
1669
1670 buf = kmalloc(size, mem_flags);
1671 if (!buf) {
1672 usb_free_urb(urb);
1673 return -ENOMEM;
1674 }
1675
1676 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
1677
1678 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
1679 hdev, data->isoc_rx_ep->bInterval);
1680
1681 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
1682
1683 __fill_isoc_descriptor(urb, size,
1684 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
1685
1686 usb_anchor_urb(urb, &data->isoc_anchor);
1687
1688 err = usb_submit_urb(urb, mem_flags);
1689 if (err < 0) {
1690 if (err != -EPERM && err != -ENODEV)
1691 bt_dev_err(hdev, "urb %p submission failed (%d)",
1692 urb, -err);
1693 usb_unanchor_urb(urb);
1694 }
1695
1696 usb_free_urb(urb);
1697
1698 return err;
1699}
1700
1701static void btusb_diag_complete(struct urb *urb)
1702{
1703 struct hci_dev *hdev = urb->context;
1704 struct btusb_data *data = hci_get_drvdata(hdev);
1705 int err;
1706
1707 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1708 urb->actual_length);
1709
1710 if (urb->status == 0) {
1711 struct sk_buff *skb;
1712
1713 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC);
1714 if (skb) {
1715 skb_put_data(skb, urb->transfer_buffer,
1716 urb->actual_length);
1717 hci_recv_diag(hdev, skb);
1718 }
1719 } else if (urb->status == -ENOENT) {
1720 /* Avoid suspend failed when usb_kill_urb */
1721 return;
1722 }
1723
1724 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags))
1725 return;
1726
1727 usb_anchor_urb(urb, &data->diag_anchor);
1728 usb_mark_last_busy(data->udev);
1729
1730 err = usb_submit_urb(urb, GFP_ATOMIC);
1731 if (err < 0) {
1732 /* -EPERM: urb is being killed;
1733 * -ENODEV: device got disconnected
1734 */
1735 if (err != -EPERM && err != -ENODEV)
1736 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1737 urb, -err);
1738 usb_unanchor_urb(urb);
1739 }
1740}
1741
1742static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags)
1743{
1744 struct btusb_data *data = hci_get_drvdata(hdev);
1745 struct urb *urb;
1746 unsigned char *buf;
1747 unsigned int pipe;
1748 int err, size = HCI_MAX_FRAME_SIZE;
1749
1750 BT_DBG("%s", hdev->name);
1751
1752 if (!data->diag_rx_ep)
1753 return -ENODEV;
1754
1755 urb = usb_alloc_urb(0, mem_flags);
1756 if (!urb)
1757 return -ENOMEM;
1758
1759 buf = kmalloc(size, mem_flags);
1760 if (!buf) {
1761 usb_free_urb(urb);
1762 return -ENOMEM;
1763 }
1764
1765 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress);
1766
1767 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1768 btusb_diag_complete, hdev);
1769
1770 urb->transfer_flags |= URB_FREE_BUFFER;
1771
1772 usb_mark_last_busy(data->udev);
1773 usb_anchor_urb(urb, &data->diag_anchor);
1774
1775 err = usb_submit_urb(urb, mem_flags);
1776 if (err < 0) {
1777 if (err != -EPERM && err != -ENODEV)
1778 bt_dev_err(hdev, "urb %p submission failed (%d)",
1779 urb, -err);
1780 usb_unanchor_urb(urb);
1781 }
1782
1783 usb_free_urb(urb);
1784
1785 return err;
1786}
1787
1788static void btusb_tx_complete(struct urb *urb)
1789{
1790 struct sk_buff *skb = urb->context;
1791 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1792 struct btusb_data *data = hci_get_drvdata(hdev);
1793 unsigned long flags;
1794
1795 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1796 urb->actual_length);
1797
1798 if (!test_bit(HCI_RUNNING, &hdev->flags))
1799 goto done;
1800
1801 if (!urb->status) {
1802 hdev->stat.byte_tx += urb->transfer_buffer_length;
1803 } else {
1804 if (hci_skb_pkt_type(skb) == HCI_COMMAND_PKT)
1805 hci_cmd_sync_cancel(hdev, -urb->status);
1806 hdev->stat.err_tx++;
1807 }
1808
1809done:
1810 spin_lock_irqsave(&data->txlock, flags);
1811 data->tx_in_flight--;
1812 spin_unlock_irqrestore(&data->txlock, flags);
1813
1814 kfree(urb->setup_packet);
1815
1816 kfree_skb(skb);
1817}
1818
1819static void btusb_isoc_tx_complete(struct urb *urb)
1820{
1821 struct sk_buff *skb = urb->context;
1822 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1823
1824 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1825 urb->actual_length);
1826
1827 if (!test_bit(HCI_RUNNING, &hdev->flags))
1828 goto done;
1829
1830 if (!urb->status)
1831 hdev->stat.byte_tx += urb->transfer_buffer_length;
1832 else
1833 hdev->stat.err_tx++;
1834
1835done:
1836 kfree(urb->setup_packet);
1837
1838 kfree_skb(skb);
1839}
1840
1841static int btusb_open(struct hci_dev *hdev)
1842{
1843 struct btusb_data *data = hci_get_drvdata(hdev);
1844 int err;
1845
1846 BT_DBG("%s", hdev->name);
1847
1848 err = usb_autopm_get_interface(data->intf);
1849 if (err < 0)
1850 return err;
1851
1852 /* Patching USB firmware files prior to starting any URBs of HCI path
1853 * It is more safe to use USB bulk channel for downloading USB patch
1854 */
1855 if (data->setup_on_usb) {
1856 err = data->setup_on_usb(hdev);
1857 if (err < 0)
1858 goto setup_fail;
1859 }
1860
1861 data->intf->needs_remote_wakeup = 1;
1862
1863 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
1864 goto done;
1865
1866 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
1867 if (err < 0)
1868 goto failed;
1869
1870 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1871 if (err < 0) {
1872 usb_kill_anchored_urbs(&data->intr_anchor);
1873 goto failed;
1874 }
1875
1876 set_bit(BTUSB_BULK_RUNNING, &data->flags);
1877 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1878
1879 if (data->diag) {
1880 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL))
1881 set_bit(BTUSB_DIAG_RUNNING, &data->flags);
1882 }
1883
1884done:
1885 usb_autopm_put_interface(data->intf);
1886 return 0;
1887
1888failed:
1889 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1890setup_fail:
1891 usb_autopm_put_interface(data->intf);
1892 return err;
1893}
1894
1895static void btusb_stop_traffic(struct btusb_data *data)
1896{
1897 usb_kill_anchored_urbs(&data->intr_anchor);
1898 usb_kill_anchored_urbs(&data->bulk_anchor);
1899 usb_kill_anchored_urbs(&data->isoc_anchor);
1900 usb_kill_anchored_urbs(&data->diag_anchor);
1901 usb_kill_anchored_urbs(&data->ctrl_anchor);
1902}
1903
1904static int btusb_close(struct hci_dev *hdev)
1905{
1906 struct btusb_data *data = hci_get_drvdata(hdev);
1907 int err;
1908
1909 BT_DBG("%s", hdev->name);
1910
1911 cancel_delayed_work(&data->rx_work);
1912 cancel_work_sync(&data->work);
1913 cancel_work_sync(&data->waker);
1914
1915 skb_queue_purge(&data->acl_q);
1916
1917 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1918 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1919 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1920 clear_bit(BTUSB_DIAG_RUNNING, &data->flags);
1921
1922 btusb_stop_traffic(data);
1923 btusb_free_frags(data);
1924
1925 err = usb_autopm_get_interface(data->intf);
1926 if (err < 0)
1927 goto failed;
1928
1929 data->intf->needs_remote_wakeup = 0;
1930
1931 /* Enable remote wake up for auto-suspend */
1932 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags))
1933 data->intf->needs_remote_wakeup = 1;
1934
1935 usb_autopm_put_interface(data->intf);
1936
1937failed:
1938 usb_scuttle_anchored_urbs(&data->deferred);
1939 return 0;
1940}
1941
1942static int btusb_flush(struct hci_dev *hdev)
1943{
1944 struct btusb_data *data = hci_get_drvdata(hdev);
1945
1946 BT_DBG("%s", hdev->name);
1947
1948 cancel_delayed_work(&data->rx_work);
1949
1950 skb_queue_purge(&data->acl_q);
1951
1952 usb_kill_anchored_urbs(&data->tx_anchor);
1953 btusb_free_frags(data);
1954
1955 return 0;
1956}
1957
1958static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
1959{
1960 struct btusb_data *data = hci_get_drvdata(hdev);
1961 struct usb_ctrlrequest *dr;
1962 struct urb *urb;
1963 unsigned int pipe;
1964
1965 urb = usb_alloc_urb(0, GFP_KERNEL);
1966 if (!urb)
1967 return ERR_PTR(-ENOMEM);
1968
1969 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
1970 if (!dr) {
1971 usb_free_urb(urb);
1972 return ERR_PTR(-ENOMEM);
1973 }
1974
1975 dr->bRequestType = data->cmdreq_type;
1976 dr->bRequest = data->cmdreq;
1977 dr->wIndex = 0;
1978 dr->wValue = 0;
1979 dr->wLength = __cpu_to_le16(skb->len);
1980
1981 pipe = usb_sndctrlpipe(data->udev, 0x00);
1982
1983 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
1984 skb->data, skb->len, btusb_tx_complete, skb);
1985
1986 skb->dev = (void *)hdev;
1987
1988 return urb;
1989}
1990
1991static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
1992{
1993 struct btusb_data *data = hci_get_drvdata(hdev);
1994 struct urb *urb;
1995 unsigned int pipe;
1996
1997 if (!data->bulk_tx_ep)
1998 return ERR_PTR(-ENODEV);
1999
2000 urb = usb_alloc_urb(0, GFP_KERNEL);
2001 if (!urb)
2002 return ERR_PTR(-ENOMEM);
2003
2004 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
2005
2006 usb_fill_bulk_urb(urb, data->udev, pipe,
2007 skb->data, skb->len, btusb_tx_complete, skb);
2008
2009 skb->dev = (void *)hdev;
2010
2011 return urb;
2012}
2013
2014static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
2015{
2016 struct btusb_data *data = hci_get_drvdata(hdev);
2017 struct urb *urb;
2018 unsigned int pipe;
2019
2020 if (!data->isoc_tx_ep)
2021 return ERR_PTR(-ENODEV);
2022
2023 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
2024 if (!urb)
2025 return ERR_PTR(-ENOMEM);
2026
2027 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
2028
2029 usb_fill_int_urb(urb, data->udev, pipe,
2030 skb->data, skb->len, btusb_isoc_tx_complete,
2031 skb, data->isoc_tx_ep->bInterval);
2032
2033 urb->transfer_flags = URB_ISO_ASAP;
2034
2035 if (data->isoc_altsetting == 6)
2036 __fill_isoc_descriptor_msbc(urb, skb->len,
2037 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize),
2038 data);
2039 else
2040 __fill_isoc_descriptor(urb, skb->len,
2041 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
2042 skb->dev = (void *)hdev;
2043
2044 return urb;
2045}
2046
2047static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
2048{
2049 struct btusb_data *data = hci_get_drvdata(hdev);
2050 int err;
2051
2052 usb_anchor_urb(urb, &data->tx_anchor);
2053
2054 err = usb_submit_urb(urb, GFP_KERNEL);
2055 if (err < 0) {
2056 if (err != -EPERM && err != -ENODEV)
2057 bt_dev_err(hdev, "urb %p submission failed (%d)",
2058 urb, -err);
2059 kfree(urb->setup_packet);
2060 usb_unanchor_urb(urb);
2061 } else {
2062 usb_mark_last_busy(data->udev);
2063 }
2064
2065 usb_free_urb(urb);
2066 return err;
2067}
2068
2069static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
2070{
2071 struct btusb_data *data = hci_get_drvdata(hdev);
2072 unsigned long flags;
2073 bool suspending;
2074
2075 spin_lock_irqsave(&data->txlock, flags);
2076 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
2077 if (!suspending)
2078 data->tx_in_flight++;
2079 spin_unlock_irqrestore(&data->txlock, flags);
2080
2081 if (!suspending)
2082 return submit_tx_urb(hdev, urb);
2083
2084 usb_anchor_urb(urb, &data->deferred);
2085 schedule_work(&data->waker);
2086
2087 usb_free_urb(urb);
2088 return 0;
2089}
2090
2091static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
2092{
2093 struct urb *urb;
2094
2095 BT_DBG("%s", hdev->name);
2096
2097 switch (hci_skb_pkt_type(skb)) {
2098 case HCI_COMMAND_PKT:
2099 urb = alloc_ctrl_urb(hdev, skb);
2100 if (IS_ERR(urb))
2101 return PTR_ERR(urb);
2102
2103 hdev->stat.cmd_tx++;
2104 return submit_or_queue_tx_urb(hdev, urb);
2105
2106 case HCI_ACLDATA_PKT:
2107 urb = alloc_bulk_urb(hdev, skb);
2108 if (IS_ERR(urb))
2109 return PTR_ERR(urb);
2110
2111 hdev->stat.acl_tx++;
2112 return submit_or_queue_tx_urb(hdev, urb);
2113
2114 case HCI_SCODATA_PKT:
2115 if (hci_conn_num(hdev, SCO_LINK) < 1)
2116 return -ENODEV;
2117
2118 urb = alloc_isoc_urb(hdev, skb);
2119 if (IS_ERR(urb))
2120 return PTR_ERR(urb);
2121
2122 hdev->stat.sco_tx++;
2123 return submit_tx_urb(hdev, urb);
2124
2125 case HCI_ISODATA_PKT:
2126 urb = alloc_bulk_urb(hdev, skb);
2127 if (IS_ERR(urb))
2128 return PTR_ERR(urb);
2129
2130 return submit_or_queue_tx_urb(hdev, urb);
2131 }
2132
2133 return -EILSEQ;
2134}
2135
2136static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
2137{
2138 struct btusb_data *data = hci_get_drvdata(hdev);
2139
2140 BT_DBG("%s evt %d", hdev->name, evt);
2141
2142 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
2143 data->sco_num = hci_conn_num(hdev, SCO_LINK);
2144 data->air_mode = evt;
2145 schedule_work(&data->work);
2146 }
2147}
2148
2149static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
2150{
2151 struct btusb_data *data = hci_get_drvdata(hdev);
2152 struct usb_interface *intf = data->isoc;
2153 struct usb_endpoint_descriptor *ep_desc;
2154 int i, err;
2155
2156 if (!data->isoc)
2157 return -ENODEV;
2158
2159 err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting);
2160 if (err < 0) {
2161 bt_dev_err(hdev, "setting interface failed (%d)", -err);
2162 return err;
2163 }
2164
2165 data->isoc_altsetting = altsetting;
2166
2167 data->isoc_tx_ep = NULL;
2168 data->isoc_rx_ep = NULL;
2169
2170 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2171 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2172
2173 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
2174 data->isoc_tx_ep = ep_desc;
2175 continue;
2176 }
2177
2178 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
2179 data->isoc_rx_ep = ep_desc;
2180 continue;
2181 }
2182 }
2183
2184 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
2185 bt_dev_err(hdev, "invalid SCO descriptors");
2186 return -ENODEV;
2187 }
2188
2189 return 0;
2190}
2191
2192static int btusb_switch_alt_setting(struct hci_dev *hdev, int new_alts)
2193{
2194 struct btusb_data *data = hci_get_drvdata(hdev);
2195 int err;
2196
2197 if (data->isoc_altsetting != new_alts) {
2198 unsigned long flags;
2199
2200 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2201 usb_kill_anchored_urbs(&data->isoc_anchor);
2202
2203 /* When isochronous alternate setting needs to be
2204 * changed, because SCO connection has been added
2205 * or removed, a packet fragment may be left in the
2206 * reassembling state. This could lead to wrongly
2207 * assembled fragments.
2208 *
2209 * Clear outstanding fragment when selecting a new
2210 * alternate setting.
2211 */
2212 spin_lock_irqsave(&data->rxlock, flags);
2213 dev_kfree_skb_irq(data->sco_skb);
2214 data->sco_skb = NULL;
2215 spin_unlock_irqrestore(&data->rxlock, flags);
2216
2217 err = __set_isoc_interface(hdev, new_alts);
2218 if (err < 0)
2219 return err;
2220 }
2221
2222 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2223 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
2224 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2225 else
2226 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
2227 }
2228
2229 return 0;
2230}
2231
2232static struct usb_host_interface *btusb_find_altsetting(struct btusb_data *data,
2233 int alt)
2234{
2235 struct usb_interface *intf = data->isoc;
2236 int i;
2237
2238 BT_DBG("Looking for Alt no :%d", alt);
2239
2240 if (!intf)
2241 return NULL;
2242
2243 for (i = 0; i < intf->num_altsetting; i++) {
2244 if (intf->altsetting[i].desc.bAlternateSetting == alt)
2245 return &intf->altsetting[i];
2246 }
2247
2248 return NULL;
2249}
2250
2251static void btusb_work(struct work_struct *work)
2252{
2253 struct btusb_data *data = container_of(work, struct btusb_data, work);
2254 struct hci_dev *hdev = data->hdev;
2255 int new_alts = 0;
2256 int err;
2257
2258 if (data->sco_num > 0) {
2259 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
2260 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
2261 if (err < 0) {
2262 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2263 usb_kill_anchored_urbs(&data->isoc_anchor);
2264 return;
2265 }
2266
2267 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
2268 }
2269
2270 if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_CVSD) {
2271 if (hdev->voice_setting & 0x0020) {
2272 static const int alts[3] = { 2, 4, 5 };
2273
2274 new_alts = alts[data->sco_num - 1];
2275 } else {
2276 new_alts = data->sco_num;
2277 }
2278 } else if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_TRANSP) {
2279 /* Bluetooth USB spec recommends alt 6 (63 bytes), but
2280 * many adapters do not support it. Alt 1 appears to
2281 * work for all adapters that do not have alt 6, and
2282 * which work with WBS at all. Some devices prefer
2283 * alt 3 (HCI payload >= 60 Bytes let air packet
2284 * data satisfy 60 bytes), requiring
2285 * MTU >= 3 (packets) * 25 (size) - 3 (headers) = 72
2286 * see also Core spec 5, vol 4, B 2.1.1 & Table 2.1.
2287 */
2288 if (btusb_find_altsetting(data, 6))
2289 new_alts = 6;
2290 else if (btusb_find_altsetting(data, 3) &&
2291 hdev->sco_mtu >= 72 &&
2292 test_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags))
2293 new_alts = 3;
2294 else
2295 new_alts = 1;
2296 }
2297
2298 if (btusb_switch_alt_setting(hdev, new_alts) < 0)
2299 bt_dev_err(hdev, "set USB alt:(%d) failed!", new_alts);
2300 } else {
2301 usb_kill_anchored_urbs(&data->isoc_anchor);
2302
2303 if (test_and_clear_bit(BTUSB_ISOC_RUNNING, &data->flags))
2304 __set_isoc_interface(hdev, 0);
2305
2306 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
2307 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
2308 }
2309}
2310
2311static void btusb_waker(struct work_struct *work)
2312{
2313 struct btusb_data *data = container_of(work, struct btusb_data, waker);
2314 int err;
2315
2316 err = usb_autopm_get_interface(data->intf);
2317 if (err < 0)
2318 return;
2319
2320 usb_autopm_put_interface(data->intf);
2321}
2322
2323static void btusb_rx_work(struct work_struct *work)
2324{
2325 struct btusb_data *data = container_of(work, struct btusb_data,
2326 rx_work.work);
2327 struct sk_buff *skb;
2328
2329 /* Dequeue ACL data received during the interval */
2330 while ((skb = skb_dequeue(&data->acl_q)))
2331 data->recv_acl(data->hdev, skb);
2332}
2333
2334static int btusb_setup_bcm92035(struct hci_dev *hdev)
2335{
2336 struct sk_buff *skb;
2337 u8 val = 0x00;
2338
2339 BT_DBG("%s", hdev->name);
2340
2341 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
2342 if (IS_ERR(skb))
2343 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb));
2344 else
2345 kfree_skb(skb);
2346
2347 return 0;
2348}
2349
2350static int btusb_setup_csr(struct hci_dev *hdev)
2351{
2352 struct btusb_data *data = hci_get_drvdata(hdev);
2353 u16 bcdDevice = le16_to_cpu(data->udev->descriptor.bcdDevice);
2354 struct hci_rp_read_local_version *rp;
2355 struct sk_buff *skb;
2356 bool is_fake = false;
2357 int ret;
2358
2359 BT_DBG("%s", hdev->name);
2360
2361 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
2362 HCI_INIT_TIMEOUT);
2363 if (IS_ERR(skb)) {
2364 int err = PTR_ERR(skb);
2365 bt_dev_err(hdev, "CSR: Local version failed (%d)", err);
2366 return err;
2367 }
2368
2369 rp = skb_pull_data(skb, sizeof(*rp));
2370 if (!rp) {
2371 bt_dev_err(hdev, "CSR: Local version length mismatch");
2372 kfree_skb(skb);
2373 return -EIO;
2374 }
2375
2376 bt_dev_info(hdev, "CSR: Setting up dongle with HCI ver=%u rev=%04x",
2377 rp->hci_ver, le16_to_cpu(rp->hci_rev));
2378
2379 bt_dev_info(hdev, "LMP ver=%u subver=%04x; manufacturer=%u",
2380 rp->lmp_ver, le16_to_cpu(rp->lmp_subver),
2381 le16_to_cpu(rp->manufacturer));
2382
2383 /* Detect a wide host of Chinese controllers that aren't CSR.
2384 *
2385 * Known fake bcdDevices: 0x0100, 0x0134, 0x1915, 0x2520, 0x7558, 0x8891
2386 *
2387 * The main thing they have in common is that these are really popular low-cost
2388 * options that support newer Bluetooth versions but rely on heavy VID/PID
2389 * squatting of this poor old Bluetooth 1.1 device. Even sold as such.
2390 *
2391 * We detect actual CSR devices by checking that the HCI manufacturer code
2392 * is Cambridge Silicon Radio (10) and ensuring that LMP sub-version and
2393 * HCI rev values always match. As they both store the firmware number.
2394 */
2395 if (le16_to_cpu(rp->manufacturer) != 10 ||
2396 le16_to_cpu(rp->hci_rev) != le16_to_cpu(rp->lmp_subver))
2397 is_fake = true;
2398
2399 /* Known legit CSR firmware build numbers and their supported BT versions:
2400 * - 1.1 (0x1) -> 0x0073, 0x020d, 0x033c, 0x034e
2401 * - 1.2 (0x2) -> 0x04d9, 0x0529
2402 * - 2.0 (0x3) -> 0x07a6, 0x07ad, 0x0c5c
2403 * - 2.1 (0x4) -> 0x149c, 0x1735, 0x1899 (0x1899 is a BlueCore4-External)
2404 * - 4.0 (0x6) -> 0x1d86, 0x2031, 0x22bb
2405 *
2406 * e.g. Real CSR dongles with LMP subversion 0x73 are old enough that
2407 * support BT 1.1 only; so it's a dead giveaway when some
2408 * third-party BT 4.0 dongle reuses it.
2409 */
2410 else if (le16_to_cpu(rp->lmp_subver) <= 0x034e &&
2411 rp->hci_ver > BLUETOOTH_VER_1_1)
2412 is_fake = true;
2413
2414 else if (le16_to_cpu(rp->lmp_subver) <= 0x0529 &&
2415 rp->hci_ver > BLUETOOTH_VER_1_2)
2416 is_fake = true;
2417
2418 else if (le16_to_cpu(rp->lmp_subver) <= 0x0c5c &&
2419 rp->hci_ver > BLUETOOTH_VER_2_0)
2420 is_fake = true;
2421
2422 else if (le16_to_cpu(rp->lmp_subver) <= 0x1899 &&
2423 rp->hci_ver > BLUETOOTH_VER_2_1)
2424 is_fake = true;
2425
2426 else if (le16_to_cpu(rp->lmp_subver) <= 0x22bb &&
2427 rp->hci_ver > BLUETOOTH_VER_4_0)
2428 is_fake = true;
2429
2430 /* Other clones which beat all the above checks */
2431 else if (bcdDevice == 0x0134 &&
2432 le16_to_cpu(rp->lmp_subver) == 0x0c5c &&
2433 rp->hci_ver == BLUETOOTH_VER_2_0)
2434 is_fake = true;
2435
2436 if (is_fake) {
2437 bt_dev_warn(hdev, "CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once...");
2438
2439 /* Generally these clones have big discrepancies between
2440 * advertised features and what's actually supported.
2441 * Probably will need to be expanded in the future;
2442 * without these the controller will lock up.
2443 */
2444 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
2445 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks);
2446 set_bit(HCI_QUIRK_BROKEN_FILTER_CLEAR_ALL, &hdev->quirks);
2447 set_bit(HCI_QUIRK_NO_SUSPEND_NOTIFIER, &hdev->quirks);
2448
2449 /* Clear the reset quirk since this is not an actual
2450 * early Bluetooth 1.1 device from CSR.
2451 */
2452 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
2453 clear_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
2454
2455 /*
2456 * Special workaround for these BT 4.0 chip clones, and potentially more:
2457 *
2458 * - 0x0134: a Barrot 8041a02 (HCI rev: 0x0810 sub: 0x1012)
2459 * - 0x7558: IC markings FR3191AHAL 749H15143 (HCI rev/sub-version: 0x0709)
2460 *
2461 * These controllers are really messed-up.
2462 *
2463 * 1. Their bulk RX endpoint will never report any data unless
2464 * the device was suspended at least once (yes, really).
2465 * 2. They will not wakeup when autosuspended and receiving data
2466 * on their bulk RX endpoint from e.g. a keyboard or mouse
2467 * (IOW remote-wakeup support is broken for the bulk endpoint).
2468 *
2469 * To fix 1. enable runtime-suspend, force-suspend the
2470 * HCI and then wake-it up by disabling runtime-suspend.
2471 *
2472 * To fix 2. clear the HCI's can_wake flag, this way the HCI
2473 * will still be autosuspended when it is not open.
2474 *
2475 * --
2476 *
2477 * Because these are widespread problems we prefer generic solutions; so
2478 * apply this initialization quirk to every controller that gets here,
2479 * it should be harmless. The alternative is to not work at all.
2480 */
2481 pm_runtime_allow(&data->udev->dev);
2482
2483 ret = pm_runtime_suspend(&data->udev->dev);
2484 if (ret >= 0)
2485 msleep(200);
2486 else
2487 bt_dev_warn(hdev, "CSR: Couldn't suspend the device for our Barrot 8041a02 receive-issue workaround");
2488
2489 pm_runtime_forbid(&data->udev->dev);
2490
2491 device_set_wakeup_capable(&data->udev->dev, false);
2492
2493 /* Re-enable autosuspend if this was requested */
2494 if (enable_autosuspend)
2495 usb_enable_autosuspend(data->udev);
2496 }
2497
2498 kfree_skb(skb);
2499
2500 return 0;
2501}
2502
2503static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
2504{
2505 struct sk_buff *skb;
2506 struct hci_event_hdr *hdr;
2507 struct hci_ev_cmd_complete *evt;
2508
2509 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL);
2510 if (!skb)
2511 return -ENOMEM;
2512
2513 hdr = skb_put(skb, sizeof(*hdr));
2514 hdr->evt = HCI_EV_CMD_COMPLETE;
2515 hdr->plen = sizeof(*evt) + 1;
2516
2517 evt = skb_put(skb, sizeof(*evt));
2518 evt->ncmd = 0x01;
2519 evt->opcode = cpu_to_le16(opcode);
2520
2521 skb_put_u8(skb, 0x00);
2522
2523 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
2524
2525 return hci_recv_frame(hdev, skb);
2526}
2527
2528static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
2529 int count)
2530{
2531 struct hci_dev *hdev = data->hdev;
2532
2533 /* When the device is in bootloader mode, then it can send
2534 * events via the bulk endpoint. These events are treated the
2535 * same way as the ones received from the interrupt endpoint.
2536 */
2537 if (btintel_test_flag(hdev, INTEL_BOOTLOADER))
2538 return btusb_recv_intr(data, buffer, count);
2539
2540 return btusb_recv_bulk(data, buffer, count);
2541}
2542
2543static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
2544{
2545 struct urb *urb;
2546
2547 BT_DBG("%s", hdev->name);
2548
2549 switch (hci_skb_pkt_type(skb)) {
2550 case HCI_COMMAND_PKT:
2551 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) {
2552 struct hci_command_hdr *cmd = (void *)skb->data;
2553 __u16 opcode = le16_to_cpu(cmd->opcode);
2554
2555 /* When in bootloader mode and the command 0xfc09
2556 * is received, it needs to be send down the
2557 * bulk endpoint. So allocate a bulk URB instead.
2558 */
2559 if (opcode == 0xfc09)
2560 urb = alloc_bulk_urb(hdev, skb);
2561 else
2562 urb = alloc_ctrl_urb(hdev, skb);
2563
2564 /* When the 0xfc01 command is issued to boot into
2565 * the operational firmware, it will actually not
2566 * send a command complete event. To keep the flow
2567 * control working inject that event here.
2568 */
2569 if (opcode == 0xfc01)
2570 inject_cmd_complete(hdev, opcode);
2571 } else {
2572 urb = alloc_ctrl_urb(hdev, skb);
2573 }
2574 if (IS_ERR(urb))
2575 return PTR_ERR(urb);
2576
2577 hdev->stat.cmd_tx++;
2578 return submit_or_queue_tx_urb(hdev, urb);
2579
2580 case HCI_ACLDATA_PKT:
2581 urb = alloc_bulk_urb(hdev, skb);
2582 if (IS_ERR(urb))
2583 return PTR_ERR(urb);
2584
2585 hdev->stat.acl_tx++;
2586 return submit_or_queue_tx_urb(hdev, urb);
2587
2588 case HCI_SCODATA_PKT:
2589 if (hci_conn_num(hdev, SCO_LINK) < 1)
2590 return -ENODEV;
2591
2592 urb = alloc_isoc_urb(hdev, skb);
2593 if (IS_ERR(urb))
2594 return PTR_ERR(urb);
2595
2596 hdev->stat.sco_tx++;
2597 return submit_tx_urb(hdev, urb);
2598
2599 case HCI_ISODATA_PKT:
2600 urb = alloc_bulk_urb(hdev, skb);
2601 if (IS_ERR(urb))
2602 return PTR_ERR(urb);
2603
2604 return submit_or_queue_tx_urb(hdev, urb);
2605 }
2606
2607 return -EILSEQ;
2608}
2609
2610static int btusb_setup_realtek(struct hci_dev *hdev)
2611{
2612 struct btusb_data *data = hci_get_drvdata(hdev);
2613 int ret;
2614
2615 ret = btrtl_setup_realtek(hdev);
2616
2617 if (btrealtek_test_flag(data->hdev, REALTEK_ALT6_CONTINUOUS_TX_CHIP))
2618 set_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags);
2619
2620 return ret;
2621}
2622
2623static int btusb_recv_event_realtek(struct hci_dev *hdev, struct sk_buff *skb)
2624{
2625 if (skb->data[0] == HCI_VENDOR_PKT && skb->data[2] == RTK_SUB_EVENT_CODE_COREDUMP) {
2626 struct rtk_dev_coredump_hdr hdr = {
2627 .code = RTK_DEVCOREDUMP_CODE_MEMDUMP,
2628 };
2629
2630 bt_dev_dbg(hdev, "RTL: received coredump vendor evt, len %u",
2631 skb->len);
2632
2633 btusb_rtl_alloc_devcoredump(hdev, &hdr, skb->data, skb->len);
2634 kfree_skb(skb);
2635
2636 return 0;
2637 }
2638
2639 return hci_recv_frame(hdev, skb);
2640}
2641
2642static void btusb_mtk_claim_iso_intf(struct btusb_data *data)
2643{
2644 struct btmtk_data *btmtk_data = hci_get_priv(data->hdev);
2645 int err;
2646
2647 /*
2648 * The function usb_driver_claim_interface() is documented to need
2649 * locks held if it's not called from a probe routine. The code here
2650 * is called from the hci_power_on workqueue, so grab the lock.
2651 */
2652 device_lock(&btmtk_data->isopkt_intf->dev);
2653 err = usb_driver_claim_interface(&btusb_driver,
2654 btmtk_data->isopkt_intf, data);
2655 device_unlock(&btmtk_data->isopkt_intf->dev);
2656 if (err < 0) {
2657 btmtk_data->isopkt_intf = NULL;
2658 bt_dev_err(data->hdev, "Failed to claim iso interface");
2659 return;
2660 }
2661
2662 set_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags);
2663 init_usb_anchor(&btmtk_data->isopkt_anchor);
2664}
2665
2666static void btusb_mtk_release_iso_intf(struct hci_dev *hdev)
2667{
2668 struct btmtk_data *btmtk_data = hci_get_priv(hdev);
2669
2670 if (test_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags)) {
2671 usb_kill_anchored_urbs(&btmtk_data->isopkt_anchor);
2672 clear_bit(BTMTK_ISOPKT_RUNNING, &btmtk_data->flags);
2673
2674 dev_kfree_skb_irq(btmtk_data->isopkt_skb);
2675 btmtk_data->isopkt_skb = NULL;
2676 usb_set_intfdata(btmtk_data->isopkt_intf, NULL);
2677 usb_driver_release_interface(&btusb_driver,
2678 btmtk_data->isopkt_intf);
2679 }
2680
2681 clear_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags);
2682}
2683
2684static int btusb_mtk_disconnect(struct hci_dev *hdev)
2685{
2686 /* This function describes the specific additional steps taken by MediaTek
2687 * when Bluetooth usb driver's resume function is called.
2688 */
2689 btusb_mtk_release_iso_intf(hdev);
2690
2691 return 0;
2692}
2693
2694static int btusb_mtk_reset(struct hci_dev *hdev, void *rst_data)
2695{
2696 struct btusb_data *data = hci_get_drvdata(hdev);
2697 struct btmtk_data *btmtk_data = hci_get_priv(hdev);
2698 int err;
2699
2700 /* It's MediaTek specific bluetooth reset mechanism via USB */
2701 if (test_and_set_bit(BTMTK_HW_RESET_ACTIVE, &btmtk_data->flags)) {
2702 bt_dev_err(hdev, "last reset failed? Not resetting again");
2703 return -EBUSY;
2704 }
2705
2706 err = usb_autopm_get_interface(data->intf);
2707 if (err < 0)
2708 return err;
2709
2710 /* Release MediaTek ISO data interface */
2711 btusb_mtk_release_iso_intf(hdev);
2712
2713 btusb_stop_traffic(data);
2714 usb_kill_anchored_urbs(&data->tx_anchor);
2715
2716 err = btmtk_usb_subsys_reset(hdev, btmtk_data->dev_id);
2717
2718 usb_queue_reset_device(data->intf);
2719 clear_bit(BTMTK_HW_RESET_ACTIVE, &btmtk_data->flags);
2720
2721 return err;
2722}
2723
2724static int btusb_send_frame_mtk(struct hci_dev *hdev, struct sk_buff *skb)
2725{
2726 struct urb *urb;
2727
2728 BT_DBG("%s", hdev->name);
2729
2730 if (hci_skb_pkt_type(skb) == HCI_ISODATA_PKT) {
2731 urb = alloc_mtk_intr_urb(hdev, skb, btusb_tx_complete);
2732 if (IS_ERR(urb))
2733 return PTR_ERR(urb);
2734
2735 return submit_or_queue_tx_urb(hdev, urb);
2736 } else {
2737 return btusb_send_frame(hdev, skb);
2738 }
2739}
2740
2741static int btusb_mtk_setup(struct hci_dev *hdev)
2742{
2743 struct btusb_data *data = hci_get_drvdata(hdev);
2744 struct btmtk_data *btmtk_data = hci_get_priv(hdev);
2745
2746 /* MediaTek WMT vendor cmd requiring below USB resources to
2747 * complete the handshake.
2748 */
2749 btmtk_data->drv_name = btusb_driver.name;
2750 btmtk_data->intf = data->intf;
2751 btmtk_data->udev = data->udev;
2752 btmtk_data->ctrl_anchor = &data->ctrl_anchor;
2753 btmtk_data->reset_sync = btusb_mtk_reset;
2754
2755 /* Claim ISO data interface and endpoint */
2756 if (!test_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags)) {
2757 btmtk_data->isopkt_intf = usb_ifnum_to_if(data->udev, MTK_ISO_IFNUM);
2758 btusb_mtk_claim_iso_intf(data);
2759 }
2760
2761 return btmtk_usb_setup(hdev);
2762}
2763
2764static int btusb_mtk_shutdown(struct hci_dev *hdev)
2765{
2766 int ret;
2767
2768 ret = btmtk_usb_shutdown(hdev);
2769
2770 /* Release MediaTek iso interface after shutdown */
2771 btusb_mtk_release_iso_intf(hdev);
2772
2773 return ret;
2774}
2775
2776#ifdef CONFIG_PM
2777/* Configure an out-of-band gpio as wake-up pin, if specified in device tree */
2778static int marvell_config_oob_wake(struct hci_dev *hdev)
2779{
2780 struct sk_buff *skb;
2781 struct btusb_data *data = hci_get_drvdata(hdev);
2782 struct device *dev = &data->udev->dev;
2783 u16 pin, gap, opcode;
2784 int ret;
2785 u8 cmd[5];
2786
2787 /* Move on if no wakeup pin specified */
2788 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) ||
2789 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap))
2790 return 0;
2791
2792 /* Vendor specific command to configure a GPIO as wake-up pin */
2793 opcode = hci_opcode_pack(0x3F, 0x59);
2794 cmd[0] = opcode & 0xFF;
2795 cmd[1] = opcode >> 8;
2796 cmd[2] = 2; /* length of parameters that follow */
2797 cmd[3] = pin;
2798 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */
2799
2800 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
2801 if (!skb) {
2802 bt_dev_err(hdev, "%s: No memory", __func__);
2803 return -ENOMEM;
2804 }
2805
2806 skb_put_data(skb, cmd, sizeof(cmd));
2807 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT;
2808
2809 ret = btusb_send_frame(hdev, skb);
2810 if (ret) {
2811 bt_dev_err(hdev, "%s: configuration failed", __func__);
2812 kfree_skb(skb);
2813 return ret;
2814 }
2815
2816 return 0;
2817}
2818#endif
2819
2820static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
2821 const bdaddr_t *bdaddr)
2822{
2823 struct sk_buff *skb;
2824 u8 buf[8];
2825 long ret;
2826
2827 buf[0] = 0xfe;
2828 buf[1] = sizeof(bdaddr_t);
2829 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
2830
2831 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2832 if (IS_ERR(skb)) {
2833 ret = PTR_ERR(skb);
2834 bt_dev_err(hdev, "changing Marvell device address failed (%ld)",
2835 ret);
2836 return ret;
2837 }
2838 kfree_skb(skb);
2839
2840 return 0;
2841}
2842
2843static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
2844 const bdaddr_t *bdaddr)
2845{
2846 struct sk_buff *skb;
2847 u8 buf[10];
2848 long ret;
2849
2850 buf[0] = 0x01;
2851 buf[1] = 0x01;
2852 buf[2] = 0x00;
2853 buf[3] = sizeof(bdaddr_t);
2854 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
2855
2856 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2857 if (IS_ERR(skb)) {
2858 ret = PTR_ERR(skb);
2859 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
2860 return ret;
2861 }
2862 kfree_skb(skb);
2863
2864 return 0;
2865}
2866
2867static int btusb_set_bdaddr_wcn6855(struct hci_dev *hdev,
2868 const bdaddr_t *bdaddr)
2869{
2870 struct sk_buff *skb;
2871 u8 buf[6];
2872 long ret;
2873
2874 memcpy(buf, bdaddr, sizeof(bdaddr_t));
2875
2876 skb = __hci_cmd_sync_ev(hdev, 0xfc14, sizeof(buf), buf,
2877 HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT);
2878 if (IS_ERR(skb)) {
2879 ret = PTR_ERR(skb);
2880 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
2881 return ret;
2882 }
2883 kfree_skb(skb);
2884
2885 return 0;
2886}
2887
2888#define QCA_MEMDUMP_ACL_HANDLE 0x2EDD
2889#define QCA_MEMDUMP_SIZE_MAX 0x100000
2890#define QCA_MEMDUMP_VSE_CLASS 0x01
2891#define QCA_MEMDUMP_MSG_TYPE 0x08
2892#define QCA_MEMDUMP_PKT_SIZE 248
2893#define QCA_LAST_SEQUENCE_NUM 0xffff
2894
2895struct qca_dump_hdr {
2896 u8 vse_class;
2897 u8 msg_type;
2898 __le16 seqno;
2899 u8 reserved;
2900 union {
2901 u8 data[0];
2902 struct {
2903 __le32 ram_dump_size;
2904 u8 data0[0];
2905 } __packed;
2906 };
2907} __packed;
2908
2909
2910static void btusb_dump_hdr_qca(struct hci_dev *hdev, struct sk_buff *skb)
2911{
2912 char buf[128];
2913 struct btusb_data *btdata = hci_get_drvdata(hdev);
2914
2915 snprintf(buf, sizeof(buf), "Controller Name: 0x%x\n",
2916 btdata->qca_dump.controller_id);
2917 skb_put_data(skb, buf, strlen(buf));
2918
2919 snprintf(buf, sizeof(buf), "Firmware Version: 0x%x\n",
2920 btdata->qca_dump.fw_version);
2921 skb_put_data(skb, buf, strlen(buf));
2922
2923 snprintf(buf, sizeof(buf), "Driver: %s\nVendor: qca\n",
2924 btusb_driver.name);
2925 skb_put_data(skb, buf, strlen(buf));
2926
2927 snprintf(buf, sizeof(buf), "VID: 0x%x\nPID:0x%x\n",
2928 btdata->qca_dump.id_vendor, btdata->qca_dump.id_product);
2929 skb_put_data(skb, buf, strlen(buf));
2930
2931 snprintf(buf, sizeof(buf), "Lmp Subversion: 0x%x\n",
2932 hdev->lmp_subver);
2933 skb_put_data(skb, buf, strlen(buf));
2934}
2935
2936static void btusb_coredump_qca(struct hci_dev *hdev)
2937{
2938 int err;
2939 static const u8 param[] = { 0x26 };
2940
2941 err = __hci_cmd_send(hdev, 0xfc0c, 1, param);
2942 if (err < 0)
2943 bt_dev_err(hdev, "%s: triggle crash failed (%d)", __func__, err);
2944}
2945
2946/*
2947 * ==0: not a dump pkt.
2948 * < 0: fails to handle a dump pkt
2949 * > 0: otherwise.
2950 */
2951static int handle_dump_pkt_qca(struct hci_dev *hdev, struct sk_buff *skb)
2952{
2953 int ret = 1;
2954 u8 pkt_type;
2955 u8 *sk_ptr;
2956 unsigned int sk_len;
2957 u16 seqno;
2958 u32 dump_size;
2959
2960 struct hci_event_hdr *event_hdr;
2961 struct hci_acl_hdr *acl_hdr;
2962 struct qca_dump_hdr *dump_hdr;
2963 struct btusb_data *btdata = hci_get_drvdata(hdev);
2964 struct usb_device *udev = btdata->udev;
2965
2966 pkt_type = hci_skb_pkt_type(skb);
2967 sk_ptr = skb->data;
2968 sk_len = skb->len;
2969
2970 if (pkt_type == HCI_ACLDATA_PKT) {
2971 acl_hdr = hci_acl_hdr(skb);
2972 if (le16_to_cpu(acl_hdr->handle) != QCA_MEMDUMP_ACL_HANDLE)
2973 return 0;
2974 sk_ptr += HCI_ACL_HDR_SIZE;
2975 sk_len -= HCI_ACL_HDR_SIZE;
2976 event_hdr = (struct hci_event_hdr *)sk_ptr;
2977 } else {
2978 event_hdr = hci_event_hdr(skb);
2979 }
2980
2981 if ((event_hdr->evt != HCI_VENDOR_PKT)
2982 || (event_hdr->plen != (sk_len - HCI_EVENT_HDR_SIZE)))
2983 return 0;
2984
2985 sk_ptr += HCI_EVENT_HDR_SIZE;
2986 sk_len -= HCI_EVENT_HDR_SIZE;
2987
2988 dump_hdr = (struct qca_dump_hdr *)sk_ptr;
2989 if ((sk_len < offsetof(struct qca_dump_hdr, data))
2990 || (dump_hdr->vse_class != QCA_MEMDUMP_VSE_CLASS)
2991 || (dump_hdr->msg_type != QCA_MEMDUMP_MSG_TYPE))
2992 return 0;
2993
2994 /*it is dump pkt now*/
2995 seqno = le16_to_cpu(dump_hdr->seqno);
2996 if (seqno == 0) {
2997 set_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags);
2998 dump_size = le32_to_cpu(dump_hdr->ram_dump_size);
2999 if (!dump_size || (dump_size > QCA_MEMDUMP_SIZE_MAX)) {
3000 ret = -EILSEQ;
3001 bt_dev_err(hdev, "Invalid memdump size(%u)",
3002 dump_size);
3003 goto out;
3004 }
3005
3006 ret = hci_devcd_init(hdev, dump_size);
3007 if (ret < 0) {
3008 bt_dev_err(hdev, "memdump init error(%d)", ret);
3009 goto out;
3010 }
3011
3012 btdata->qca_dump.ram_dump_size = dump_size;
3013 btdata->qca_dump.ram_dump_seqno = 0;
3014 sk_ptr += offsetof(struct qca_dump_hdr, data0);
3015 sk_len -= offsetof(struct qca_dump_hdr, data0);
3016
3017 usb_disable_autosuspend(udev);
3018 bt_dev_info(hdev, "%s memdump size(%u)\n",
3019 (pkt_type == HCI_ACLDATA_PKT) ? "ACL" : "event",
3020 dump_size);
3021 } else {
3022 sk_ptr += offsetof(struct qca_dump_hdr, data);
3023 sk_len -= offsetof(struct qca_dump_hdr, data);
3024 }
3025
3026 if (!btdata->qca_dump.ram_dump_size) {
3027 ret = -EINVAL;
3028 bt_dev_err(hdev, "memdump is not active");
3029 goto out;
3030 }
3031
3032 if ((seqno > btdata->qca_dump.ram_dump_seqno + 1) && (seqno != QCA_LAST_SEQUENCE_NUM)) {
3033 dump_size = QCA_MEMDUMP_PKT_SIZE * (seqno - btdata->qca_dump.ram_dump_seqno - 1);
3034 hci_devcd_append_pattern(hdev, 0x0, dump_size);
3035 bt_dev_err(hdev,
3036 "expected memdump seqno(%u) is not received(%u)\n",
3037 btdata->qca_dump.ram_dump_seqno, seqno);
3038 btdata->qca_dump.ram_dump_seqno = seqno;
3039 kfree_skb(skb);
3040 return ret;
3041 }
3042
3043 skb_pull(skb, skb->len - sk_len);
3044 hci_devcd_append(hdev, skb);
3045 btdata->qca_dump.ram_dump_seqno++;
3046 if (seqno == QCA_LAST_SEQUENCE_NUM) {
3047 bt_dev_info(hdev,
3048 "memdump done: pkts(%u), total(%u)\n",
3049 btdata->qca_dump.ram_dump_seqno, btdata->qca_dump.ram_dump_size);
3050
3051 hci_devcd_complete(hdev);
3052 goto out;
3053 }
3054 return ret;
3055
3056out:
3057 if (btdata->qca_dump.ram_dump_size)
3058 usb_enable_autosuspend(udev);
3059 btdata->qca_dump.ram_dump_size = 0;
3060 btdata->qca_dump.ram_dump_seqno = 0;
3061 clear_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags);
3062
3063 if (ret < 0)
3064 kfree_skb(skb);
3065 return ret;
3066}
3067
3068static int btusb_recv_acl_qca(struct hci_dev *hdev, struct sk_buff *skb)
3069{
3070 if (handle_dump_pkt_qca(hdev, skb))
3071 return 0;
3072 return hci_recv_frame(hdev, skb);
3073}
3074
3075static int btusb_recv_evt_qca(struct hci_dev *hdev, struct sk_buff *skb)
3076{
3077 if (handle_dump_pkt_qca(hdev, skb))
3078 return 0;
3079 return hci_recv_frame(hdev, skb);
3080}
3081
3082
3083#define QCA_DFU_PACKET_LEN 4096
3084
3085#define QCA_GET_TARGET_VERSION 0x09
3086#define QCA_CHECK_STATUS 0x05
3087#define QCA_DFU_DOWNLOAD 0x01
3088
3089#define QCA_SYSCFG_UPDATED 0x40
3090#define QCA_PATCH_UPDATED 0x80
3091#define QCA_DFU_TIMEOUT 3000
3092#define QCA_FLAG_MULTI_NVM 0x80
3093#define QCA_BT_RESET_WAIT_MS 100
3094
3095#define WCN6855_2_0_RAM_VERSION_GF 0x400c1200
3096#define WCN6855_2_1_RAM_VERSION_GF 0x400c1211
3097
3098struct qca_version {
3099 __le32 rom_version;
3100 __le32 patch_version;
3101 __le32 ram_version;
3102 __u8 chip_id;
3103 __u8 platform_id;
3104 __le16 flag;
3105 __u8 reserved[4];
3106} __packed;
3107
3108struct qca_rampatch_version {
3109 __le16 rom_version_high;
3110 __le16 rom_version_low;
3111 __le16 patch_version;
3112} __packed;
3113
3114struct qca_device_info {
3115 u32 rom_version;
3116 u8 rampatch_hdr; /* length of header in rampatch */
3117 u8 nvm_hdr; /* length of header in NVM */
3118 u8 ver_offset; /* offset of version structure in rampatch */
3119};
3120
3121static const struct qca_device_info qca_devices_table[] = {
3122 { 0x00000100, 20, 4, 8 }, /* Rome 1.0 */
3123 { 0x00000101, 20, 4, 8 }, /* Rome 1.1 */
3124 { 0x00000200, 28, 4, 16 }, /* Rome 2.0 */
3125 { 0x00000201, 28, 4, 16 }, /* Rome 2.1 */
3126 { 0x00000300, 28, 4, 16 }, /* Rome 3.0 */
3127 { 0x00000302, 28, 4, 16 }, /* Rome 3.2 */
3128 { 0x00130100, 40, 4, 16 }, /* WCN6855 1.0 */
3129 { 0x00130200, 40, 4, 16 }, /* WCN6855 2.0 */
3130 { 0x00130201, 40, 4, 16 }, /* WCN6855 2.1 */
3131 { 0x00190200, 40, 4, 16 }, /* WCN785x 2.0 */
3132};
3133
3134static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request,
3135 void *data, u16 size)
3136{
3137 int pipe, err;
3138 u8 *buf;
3139
3140 buf = kmalloc(size, GFP_KERNEL);
3141 if (!buf)
3142 return -ENOMEM;
3143
3144 /* Found some of USB hosts have IOT issues with ours so that we should
3145 * not wait until HCI layer is ready.
3146 */
3147 pipe = usb_rcvctrlpipe(udev, 0);
3148 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
3149 0, 0, buf, size, USB_CTRL_GET_TIMEOUT);
3150 if (err < 0) {
3151 dev_err(&udev->dev, "Failed to access otp area (%d)", err);
3152 goto done;
3153 }
3154
3155 memcpy(data, buf, size);
3156
3157done:
3158 kfree(buf);
3159
3160 return err;
3161}
3162
3163static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
3164 const struct firmware *firmware,
3165 size_t hdr_size)
3166{
3167 struct btusb_data *btdata = hci_get_drvdata(hdev);
3168 struct usb_device *udev = btdata->udev;
3169 size_t count, size, sent = 0;
3170 int pipe, len, err;
3171 u8 *buf;
3172
3173 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
3174 if (!buf)
3175 return -ENOMEM;
3176
3177 count = firmware->size;
3178
3179 size = min_t(size_t, count, hdr_size);
3180 memcpy(buf, firmware->data, size);
3181
3182 /* USB patches should go down to controller through USB path
3183 * because binary format fits to go down through USB channel.
3184 * USB control path is for patching headers and USB bulk is for
3185 * patch body.
3186 */
3187 pipe = usb_sndctrlpipe(udev, 0);
3188 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
3189 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
3190 if (err < 0) {
3191 bt_dev_err(hdev, "Failed to send headers (%d)", err);
3192 goto done;
3193 }
3194
3195 sent += size;
3196 count -= size;
3197
3198 /* ep2 need time to switch from function acl to function dfu,
3199 * so we add 20ms delay here.
3200 */
3201 msleep(20);
3202
3203 while (count) {
3204 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
3205
3206 memcpy(buf, firmware->data + sent, size);
3207
3208 pipe = usb_sndbulkpipe(udev, 0x02);
3209 err = usb_bulk_msg(udev, pipe, buf, size, &len,
3210 QCA_DFU_TIMEOUT);
3211 if (err < 0) {
3212 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)",
3213 sent, firmware->size, err);
3214 break;
3215 }
3216
3217 if (size != len) {
3218 bt_dev_err(hdev, "Failed to get bulk buffer");
3219 err = -EILSEQ;
3220 break;
3221 }
3222
3223 sent += size;
3224 count -= size;
3225 }
3226
3227done:
3228 kfree(buf);
3229 return err;
3230}
3231
3232static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
3233 struct qca_version *ver,
3234 const struct qca_device_info *info)
3235{
3236 struct qca_rampatch_version *rver;
3237 const struct firmware *fw;
3238 u32 ver_rom, ver_patch, rver_rom;
3239 u16 rver_rom_low, rver_rom_high, rver_patch;
3240 char fwname[64];
3241 int err;
3242
3243 ver_rom = le32_to_cpu(ver->rom_version);
3244 ver_patch = le32_to_cpu(ver->patch_version);
3245
3246 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom);
3247
3248 err = request_firmware(&fw, fwname, &hdev->dev);
3249 if (err) {
3250 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)",
3251 fwname, err);
3252 return err;
3253 }
3254
3255 bt_dev_info(hdev, "using rampatch file: %s", fwname);
3256
3257 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
3258 rver_rom_low = le16_to_cpu(rver->rom_version_low);
3259 rver_patch = le16_to_cpu(rver->patch_version);
3260
3261 if (ver_rom & ~0xffffU) {
3262 rver_rom_high = le16_to_cpu(rver->rom_version_high);
3263 rver_rom = rver_rom_high << 16 | rver_rom_low;
3264 } else {
3265 rver_rom = rver_rom_low;
3266 }
3267
3268 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, "
3269 "firmware rome 0x%x build 0x%x",
3270 rver_rom, rver_patch, ver_rom, ver_patch);
3271
3272 if (rver_rom != ver_rom || rver_patch <= ver_patch) {
3273 bt_dev_err(hdev, "rampatch file version did not match with firmware");
3274 err = -EINVAL;
3275 goto done;
3276 }
3277
3278 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
3279
3280done:
3281 release_firmware(fw);
3282
3283 return err;
3284}
3285
3286static void btusb_generate_qca_nvm_name(char *fwname, size_t max_size,
3287 const struct qca_version *ver)
3288{
3289 u32 rom_version = le32_to_cpu(ver->rom_version);
3290 u16 flag = le16_to_cpu(ver->flag);
3291
3292 if (((flag >> 8) & 0xff) == QCA_FLAG_MULTI_NVM) {
3293 /* The board_id should be split into two bytes
3294 * The 1st byte is chip ID, and the 2nd byte is platform ID
3295 * For example, board ID 0x010A, 0x01 is platform ID. 0x0A is chip ID
3296 * we have several platforms, and platform IDs are continuously added
3297 * Platform ID:
3298 * 0x00 is for Mobile
3299 * 0x01 is for X86
3300 * 0x02 is for Automotive
3301 * 0x03 is for Consumer electronic
3302 */
3303 u16 board_id = (ver->chip_id << 8) + ver->platform_id;
3304 const char *variant;
3305
3306 switch (le32_to_cpu(ver->ram_version)) {
3307 case WCN6855_2_0_RAM_VERSION_GF:
3308 case WCN6855_2_1_RAM_VERSION_GF:
3309 variant = "_gf";
3310 break;
3311 default:
3312 variant = "";
3313 break;
3314 }
3315
3316 if (board_id == 0) {
3317 snprintf(fwname, max_size, "qca/nvm_usb_%08x%s.bin",
3318 rom_version, variant);
3319 } else {
3320 snprintf(fwname, max_size, "qca/nvm_usb_%08x%s_%04x.bin",
3321 rom_version, variant, board_id);
3322 }
3323 } else {
3324 snprintf(fwname, max_size, "qca/nvm_usb_%08x.bin",
3325 rom_version);
3326 }
3327
3328}
3329
3330static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
3331 struct qca_version *ver,
3332 const struct qca_device_info *info)
3333{
3334 const struct firmware *fw;
3335 char fwname[64];
3336 int err;
3337
3338 btusb_generate_qca_nvm_name(fwname, sizeof(fwname), ver);
3339
3340 err = request_firmware(&fw, fwname, &hdev->dev);
3341 if (err) {
3342 bt_dev_err(hdev, "failed to request NVM file: %s (%d)",
3343 fwname, err);
3344 return err;
3345 }
3346
3347 bt_dev_info(hdev, "using NVM file: %s", fwname);
3348
3349 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
3350
3351 release_firmware(fw);
3352
3353 return err;
3354}
3355
3356/* identify the ROM version and check whether patches are needed */
3357static bool btusb_qca_need_patch(struct usb_device *udev)
3358{
3359 struct qca_version ver;
3360
3361 if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3362 sizeof(ver)) < 0)
3363 return false;
3364 /* only low ROM versions need patches */
3365 return !(le32_to_cpu(ver.rom_version) & ~0xffffU);
3366}
3367
3368static int btusb_setup_qca(struct hci_dev *hdev)
3369{
3370 struct btusb_data *btdata = hci_get_drvdata(hdev);
3371 struct usb_device *udev = btdata->udev;
3372 const struct qca_device_info *info = NULL;
3373 struct qca_version ver;
3374 u32 ver_rom;
3375 u8 status;
3376 int i, err;
3377
3378 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3379 sizeof(ver));
3380 if (err < 0)
3381 return err;
3382
3383 ver_rom = le32_to_cpu(ver.rom_version);
3384
3385 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
3386 if (ver_rom == qca_devices_table[i].rom_version)
3387 info = &qca_devices_table[i];
3388 }
3389 if (!info) {
3390 /* If the rom_version is not matched in the qca_devices_table
3391 * and the high ROM version is not zero, we assume this chip no
3392 * need to load the rampatch and nvm.
3393 */
3394 if (ver_rom & ~0xffffU)
3395 return 0;
3396
3397 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom);
3398 return -ENODEV;
3399 }
3400
3401 err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status,
3402 sizeof(status));
3403 if (err < 0)
3404 return err;
3405
3406 if (!(status & QCA_PATCH_UPDATED)) {
3407 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
3408 if (err < 0)
3409 return err;
3410 }
3411
3412 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3413 sizeof(ver));
3414 if (err < 0)
3415 return err;
3416
3417 btdata->qca_dump.fw_version = le32_to_cpu(ver.patch_version);
3418 btdata->qca_dump.controller_id = le32_to_cpu(ver.rom_version);
3419
3420 if (!(status & QCA_SYSCFG_UPDATED)) {
3421 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
3422 if (err < 0)
3423 return err;
3424
3425 /* WCN6855 2.1 and later will reset to apply firmware downloaded here, so
3426 * wait ~100ms for reset Done then go ahead, otherwise, it maybe
3427 * cause potential enable failure.
3428 */
3429 if (info->rom_version >= 0x00130201)
3430 msleep(QCA_BT_RESET_WAIT_MS);
3431 }
3432
3433 /* Mark HCI_OP_ENHANCED_SETUP_SYNC_CONN as broken as it doesn't seem to
3434 * work with the likes of HSP/HFP mSBC.
3435 */
3436 set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks);
3437
3438 return 0;
3439}
3440
3441static inline int __set_diag_interface(struct hci_dev *hdev)
3442{
3443 struct btusb_data *data = hci_get_drvdata(hdev);
3444 struct usb_interface *intf = data->diag;
3445 int i;
3446
3447 if (!data->diag)
3448 return -ENODEV;
3449
3450 data->diag_tx_ep = NULL;
3451 data->diag_rx_ep = NULL;
3452
3453 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
3454 struct usb_endpoint_descriptor *ep_desc;
3455
3456 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
3457
3458 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
3459 data->diag_tx_ep = ep_desc;
3460 continue;
3461 }
3462
3463 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
3464 data->diag_rx_ep = ep_desc;
3465 continue;
3466 }
3467 }
3468
3469 if (!data->diag_tx_ep || !data->diag_rx_ep) {
3470 bt_dev_err(hdev, "invalid diagnostic descriptors");
3471 return -ENODEV;
3472 }
3473
3474 return 0;
3475}
3476
3477static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable)
3478{
3479 struct btusb_data *data = hci_get_drvdata(hdev);
3480 struct sk_buff *skb;
3481 struct urb *urb;
3482 unsigned int pipe;
3483
3484 if (!data->diag_tx_ep)
3485 return ERR_PTR(-ENODEV);
3486
3487 urb = usb_alloc_urb(0, GFP_KERNEL);
3488 if (!urb)
3489 return ERR_PTR(-ENOMEM);
3490
3491 skb = bt_skb_alloc(2, GFP_KERNEL);
3492 if (!skb) {
3493 usb_free_urb(urb);
3494 return ERR_PTR(-ENOMEM);
3495 }
3496
3497 skb_put_u8(skb, 0xf0);
3498 skb_put_u8(skb, enable);
3499
3500 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress);
3501
3502 usb_fill_bulk_urb(urb, data->udev, pipe,
3503 skb->data, skb->len, btusb_tx_complete, skb);
3504
3505 skb->dev = (void *)hdev;
3506
3507 return urb;
3508}
3509
3510static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable)
3511{
3512 struct btusb_data *data = hci_get_drvdata(hdev);
3513 struct urb *urb;
3514
3515 if (!data->diag)
3516 return -ENODEV;
3517
3518 if (!test_bit(HCI_RUNNING, &hdev->flags))
3519 return -ENETDOWN;
3520
3521 urb = alloc_diag_urb(hdev, enable);
3522 if (IS_ERR(urb))
3523 return PTR_ERR(urb);
3524
3525 return submit_or_queue_tx_urb(hdev, urb);
3526}
3527
3528#ifdef CONFIG_PM
3529static irqreturn_t btusb_oob_wake_handler(int irq, void *priv)
3530{
3531 struct btusb_data *data = priv;
3532
3533 pm_wakeup_event(&data->udev->dev, 0);
3534 pm_system_wakeup();
3535
3536 /* Disable only if not already disabled (keep it balanced) */
3537 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
3538 disable_irq_nosync(irq);
3539 disable_irq_wake(irq);
3540 }
3541 return IRQ_HANDLED;
3542}
3543
3544static const struct of_device_id btusb_match_table[] = {
3545 { .compatible = "usb1286,204e" },
3546 { .compatible = "usbcf3,e300" }, /* QCA6174A */
3547 { .compatible = "usb4ca,301a" }, /* QCA6174A (Lite-On) */
3548 { }
3549};
3550MODULE_DEVICE_TABLE(of, btusb_match_table);
3551
3552/* Use an oob wakeup pin? */
3553static int btusb_config_oob_wake(struct hci_dev *hdev)
3554{
3555 struct btusb_data *data = hci_get_drvdata(hdev);
3556 struct device *dev = &data->udev->dev;
3557 int irq, ret;
3558
3559 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
3560
3561 if (!of_match_device(btusb_match_table, dev))
3562 return 0;
3563
3564 /* Move on if no IRQ specified */
3565 irq = of_irq_get_byname(dev->of_node, "wakeup");
3566 if (irq <= 0) {
3567 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__);
3568 return 0;
3569 }
3570
3571 irq_set_status_flags(irq, IRQ_NOAUTOEN);
3572 ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler,
3573 0, "OOB Wake-on-BT", data);
3574 if (ret) {
3575 bt_dev_err(hdev, "%s: IRQ request failed", __func__);
3576 return ret;
3577 }
3578
3579 ret = device_init_wakeup(dev, true);
3580 if (ret) {
3581 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__);
3582 return ret;
3583 }
3584
3585 data->oob_wake_irq = irq;
3586 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq);
3587 return 0;
3588}
3589#endif
3590
3591static void btusb_check_needs_reset_resume(struct usb_interface *intf)
3592{
3593 if (dmi_check_system(btusb_needs_reset_resume_table))
3594 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
3595}
3596
3597static bool btusb_wakeup(struct hci_dev *hdev)
3598{
3599 struct btusb_data *data = hci_get_drvdata(hdev);
3600
3601 return device_may_wakeup(&data->udev->dev);
3602}
3603
3604static int btusb_shutdown_qca(struct hci_dev *hdev)
3605{
3606 struct sk_buff *skb;
3607
3608 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
3609 if (IS_ERR(skb)) {
3610 bt_dev_err(hdev, "HCI reset during shutdown failed");
3611 return PTR_ERR(skb);
3612 }
3613 kfree_skb(skb);
3614
3615 return 0;
3616}
3617
3618static ssize_t force_poll_sync_read(struct file *file, char __user *user_buf,
3619 size_t count, loff_t *ppos)
3620{
3621 struct btusb_data *data = file->private_data;
3622 char buf[3];
3623
3624 buf[0] = data->poll_sync ? 'Y' : 'N';
3625 buf[1] = '\n';
3626 buf[2] = '\0';
3627 return simple_read_from_buffer(user_buf, count, ppos, buf, 2);
3628}
3629
3630static ssize_t force_poll_sync_write(struct file *file,
3631 const char __user *user_buf,
3632 size_t count, loff_t *ppos)
3633{
3634 struct btusb_data *data = file->private_data;
3635 bool enable;
3636 int err;
3637
3638 err = kstrtobool_from_user(user_buf, count, &enable);
3639 if (err)
3640 return err;
3641
3642 /* Only allow changes while the adapter is down */
3643 if (test_bit(HCI_UP, &data->hdev->flags))
3644 return -EPERM;
3645
3646 if (data->poll_sync == enable)
3647 return -EALREADY;
3648
3649 data->poll_sync = enable;
3650
3651 return count;
3652}
3653
3654static const struct file_operations force_poll_sync_fops = {
3655 .owner = THIS_MODULE,
3656 .open = simple_open,
3657 .read = force_poll_sync_read,
3658 .write = force_poll_sync_write,
3659 .llseek = default_llseek,
3660};
3661
3662static int btusb_probe(struct usb_interface *intf,
3663 const struct usb_device_id *id)
3664{
3665 struct usb_endpoint_descriptor *ep_desc;
3666 struct gpio_desc *reset_gpio;
3667 struct btusb_data *data;
3668 struct hci_dev *hdev;
3669 unsigned ifnum_base;
3670 int i, err, priv_size;
3671
3672 BT_DBG("intf %p id %p", intf, id);
3673
3674 if ((id->driver_info & BTUSB_IFNUM_2) &&
3675 (intf->cur_altsetting->desc.bInterfaceNumber != 0) &&
3676 (intf->cur_altsetting->desc.bInterfaceNumber != 2))
3677 return -ENODEV;
3678
3679 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber;
3680
3681 if (!id->driver_info) {
3682 const struct usb_device_id *match;
3683
3684 match = usb_match_id(intf, quirks_table);
3685 if (match)
3686 id = match;
3687 }
3688
3689 if (id->driver_info == BTUSB_IGNORE)
3690 return -ENODEV;
3691
3692 if (id->driver_info & BTUSB_ATH3012) {
3693 struct usb_device *udev = interface_to_usbdev(intf);
3694
3695 /* Old firmware would otherwise let ath3k driver load
3696 * patch and sysconfig files
3697 */
3698 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 &&
3699 !btusb_qca_need_patch(udev))
3700 return -ENODEV;
3701 }
3702
3703 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
3704 if (!data)
3705 return -ENOMEM;
3706
3707 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
3708 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
3709
3710 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
3711 data->intr_ep = ep_desc;
3712 continue;
3713 }
3714
3715 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
3716 data->bulk_tx_ep = ep_desc;
3717 continue;
3718 }
3719
3720 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
3721 data->bulk_rx_ep = ep_desc;
3722 continue;
3723 }
3724 }
3725
3726 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
3727 return -ENODEV;
3728
3729 if (id->driver_info & BTUSB_AMP) {
3730 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
3731 data->cmdreq = 0x2b;
3732 } else {
3733 data->cmdreq_type = USB_TYPE_CLASS;
3734 data->cmdreq = 0x00;
3735 }
3736
3737 data->udev = interface_to_usbdev(intf);
3738 data->intf = intf;
3739
3740 INIT_WORK(&data->work, btusb_work);
3741 INIT_WORK(&data->waker, btusb_waker);
3742 INIT_DELAYED_WORK(&data->rx_work, btusb_rx_work);
3743
3744 skb_queue_head_init(&data->acl_q);
3745
3746 init_usb_anchor(&data->deferred);
3747 init_usb_anchor(&data->tx_anchor);
3748 spin_lock_init(&data->txlock);
3749
3750 init_usb_anchor(&data->intr_anchor);
3751 init_usb_anchor(&data->bulk_anchor);
3752 init_usb_anchor(&data->isoc_anchor);
3753 init_usb_anchor(&data->diag_anchor);
3754 init_usb_anchor(&data->ctrl_anchor);
3755 spin_lock_init(&data->rxlock);
3756
3757 priv_size = 0;
3758
3759 data->recv_event = hci_recv_frame;
3760 data->recv_bulk = btusb_recv_bulk;
3761
3762 if (id->driver_info & BTUSB_INTEL_COMBINED) {
3763 /* Allocate extra space for Intel device */
3764 priv_size += sizeof(struct btintel_data);
3765
3766 /* Override the rx handlers */
3767 data->recv_event = btintel_recv_event;
3768 data->recv_bulk = btusb_recv_bulk_intel;
3769 } else if (id->driver_info & BTUSB_REALTEK) {
3770 /* Allocate extra space for Realtek device */
3771 priv_size += sizeof(struct btrealtek_data);
3772
3773 data->recv_event = btusb_recv_event_realtek;
3774 } else if (id->driver_info & BTUSB_MEDIATEK) {
3775 /* Allocate extra space for Mediatek device */
3776 priv_size += sizeof(struct btmtk_data);
3777 }
3778
3779 data->recv_acl = hci_recv_frame;
3780
3781 hdev = hci_alloc_dev_priv(priv_size);
3782 if (!hdev)
3783 return -ENOMEM;
3784
3785 hdev->bus = HCI_USB;
3786 hci_set_drvdata(hdev, data);
3787
3788 data->hdev = hdev;
3789
3790 SET_HCIDEV_DEV(hdev, &intf->dev);
3791
3792 reset_gpio = gpiod_get_optional(&data->udev->dev, "reset",
3793 GPIOD_OUT_LOW);
3794 if (IS_ERR(reset_gpio)) {
3795 err = PTR_ERR(reset_gpio);
3796 goto out_free_dev;
3797 } else if (reset_gpio) {
3798 data->reset_gpio = reset_gpio;
3799 }
3800
3801 hdev->open = btusb_open;
3802 hdev->close = btusb_close;
3803 hdev->flush = btusb_flush;
3804 hdev->send = btusb_send_frame;
3805 hdev->notify = btusb_notify;
3806 hdev->wakeup = btusb_wakeup;
3807
3808#ifdef CONFIG_PM
3809 err = btusb_config_oob_wake(hdev);
3810 if (err)
3811 goto out_free_dev;
3812
3813 /* Marvell devices may need a specific chip configuration */
3814 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) {
3815 err = marvell_config_oob_wake(hdev);
3816 if (err)
3817 goto out_free_dev;
3818 }
3819#endif
3820 if (id->driver_info & BTUSB_CW6622)
3821 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
3822
3823 if (id->driver_info & BTUSB_BCM2045)
3824 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
3825
3826 if (id->driver_info & BTUSB_BCM92035)
3827 hdev->setup = btusb_setup_bcm92035;
3828
3829 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
3830 (id->driver_info & BTUSB_BCM_PATCHRAM)) {
3831 hdev->manufacturer = 15;
3832 hdev->setup = btbcm_setup_patchram;
3833 hdev->set_diag = btusb_bcm_set_diag;
3834 hdev->set_bdaddr = btbcm_set_bdaddr;
3835
3836 /* Broadcom LM_DIAG Interface numbers are hardcoded */
3837 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
3838 }
3839
3840 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
3841 (id->driver_info & BTUSB_BCM_APPLE)) {
3842 hdev->manufacturer = 15;
3843 hdev->setup = btbcm_setup_apple;
3844 hdev->set_diag = btusb_bcm_set_diag;
3845
3846 /* Broadcom LM_DIAG Interface numbers are hardcoded */
3847 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
3848 }
3849
3850 /* Combined Intel Device setup to support multiple setup routine */
3851 if (id->driver_info & BTUSB_INTEL_COMBINED) {
3852 err = btintel_configure_setup(hdev, btusb_driver.name);
3853 if (err)
3854 goto out_free_dev;
3855
3856 /* Transport specific configuration */
3857 hdev->send = btusb_send_frame_intel;
3858 hdev->cmd_timeout = btusb_intel_cmd_timeout;
3859
3860 if (id->driver_info & BTUSB_INTEL_NO_WBS_SUPPORT)
3861 btintel_set_flag(hdev, INTEL_ROM_LEGACY_NO_WBS_SUPPORT);
3862
3863 if (id->driver_info & BTUSB_INTEL_BROKEN_INITIAL_NCMD)
3864 btintel_set_flag(hdev, INTEL_BROKEN_INITIAL_NCMD);
3865
3866 if (id->driver_info & BTUSB_INTEL_BROKEN_SHUTDOWN_LED)
3867 btintel_set_flag(hdev, INTEL_BROKEN_SHUTDOWN_LED);
3868 }
3869
3870 if (id->driver_info & BTUSB_MARVELL)
3871 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
3872
3873 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_MTK) &&
3874 (id->driver_info & BTUSB_MEDIATEK)) {
3875 hdev->setup = btusb_mtk_setup;
3876 hdev->shutdown = btusb_mtk_shutdown;
3877 hdev->manufacturer = 70;
3878 hdev->cmd_timeout = btmtk_reset_sync;
3879 hdev->set_bdaddr = btmtk_set_bdaddr;
3880 hdev->send = btusb_send_frame_mtk;
3881 set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks);
3882 set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
3883 data->recv_acl = btmtk_usb_recv_acl;
3884 data->suspend = btmtk_usb_suspend;
3885 data->resume = btmtk_usb_resume;
3886 data->disconnect = btusb_mtk_disconnect;
3887 }
3888
3889 if (id->driver_info & BTUSB_SWAVE) {
3890 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
3891 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
3892 }
3893
3894 if (id->driver_info & BTUSB_INTEL_BOOT) {
3895 hdev->manufacturer = 2;
3896 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
3897 }
3898
3899 if (id->driver_info & BTUSB_ATH3012) {
3900 data->setup_on_usb = btusb_setup_qca;
3901 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
3902 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3903 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
3904 }
3905
3906 if (id->driver_info & BTUSB_QCA_ROME) {
3907 data->setup_on_usb = btusb_setup_qca;
3908 hdev->shutdown = btusb_shutdown_qca;
3909 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
3910 hdev->cmd_timeout = btusb_qca_cmd_timeout;
3911 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3912 btusb_check_needs_reset_resume(intf);
3913 }
3914
3915 if (id->driver_info & BTUSB_QCA_WCN6855) {
3916 data->qca_dump.id_vendor = id->idVendor;
3917 data->qca_dump.id_product = id->idProduct;
3918 data->recv_event = btusb_recv_evt_qca;
3919 data->recv_acl = btusb_recv_acl_qca;
3920 hci_devcd_register(hdev, btusb_coredump_qca, btusb_dump_hdr_qca, NULL);
3921 data->setup_on_usb = btusb_setup_qca;
3922 hdev->shutdown = btusb_shutdown_qca;
3923 hdev->set_bdaddr = btusb_set_bdaddr_wcn6855;
3924 hdev->cmd_timeout = btusb_qca_cmd_timeout;
3925 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3926 hci_set_msft_opcode(hdev, 0xFD70);
3927 }
3928
3929 if (id->driver_info & BTUSB_AMP) {
3930 /* AMP controllers do not support SCO packets */
3931 data->isoc = NULL;
3932 } else {
3933 /* Interface orders are hardcoded in the specification */
3934 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1);
3935 data->isoc_ifnum = ifnum_base + 1;
3936 }
3937
3938 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_RTL) &&
3939 (id->driver_info & BTUSB_REALTEK)) {
3940 btrtl_set_driver_name(hdev, btusb_driver.name);
3941 hdev->setup = btusb_setup_realtek;
3942 hdev->shutdown = btrtl_shutdown_realtek;
3943 hdev->cmd_timeout = btusb_rtl_cmd_timeout;
3944 hdev->hw_error = btusb_rtl_hw_error;
3945
3946 /* Realtek devices need to set remote wakeup on auto-suspend */
3947 set_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags);
3948 set_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags);
3949 }
3950
3951 if (id->driver_info & BTUSB_ACTIONS_SEMI) {
3952 /* Support is advertised, but not implemented */
3953 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks);
3954 set_bit(HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER, &hdev->quirks);
3955 set_bit(HCI_QUIRK_BROKEN_SET_RPA_TIMEOUT, &hdev->quirks);
3956 set_bit(HCI_QUIRK_BROKEN_EXT_SCAN, &hdev->quirks);
3957 set_bit(HCI_QUIRK_BROKEN_READ_ENC_KEY_SIZE, &hdev->quirks);
3958 set_bit(HCI_QUIRK_BROKEN_EXT_CREATE_CONN, &hdev->quirks);
3959 set_bit(HCI_QUIRK_BROKEN_WRITE_AUTH_PAYLOAD_TIMEOUT, &hdev->quirks);
3960 }
3961
3962 if (!reset)
3963 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3964
3965 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
3966 if (!disable_scofix)
3967 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
3968 }
3969
3970 if (id->driver_info & BTUSB_BROKEN_ISOC)
3971 data->isoc = NULL;
3972
3973 if (id->driver_info & BTUSB_WIDEBAND_SPEECH)
3974 set_bit(HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED, &hdev->quirks);
3975
3976 if (id->driver_info & BTUSB_INVALID_LE_STATES)
3977 set_bit(HCI_QUIRK_BROKEN_LE_STATES, &hdev->quirks);
3978
3979 if (id->driver_info & BTUSB_DIGIANSWER) {
3980 data->cmdreq_type = USB_TYPE_VENDOR;
3981 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3982 }
3983
3984 if (id->driver_info & BTUSB_CSR) {
3985 struct usb_device *udev = data->udev;
3986 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
3987
3988 /* Old firmware would otherwise execute USB reset */
3989 if (bcdDevice < 0x117)
3990 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3991
3992 /* This must be set first in case we disable it for fakes */
3993 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3994
3995 /* Fake CSR devices with broken commands */
3996 if (le16_to_cpu(udev->descriptor.idVendor) == 0x0a12 &&
3997 le16_to_cpu(udev->descriptor.idProduct) == 0x0001)
3998 hdev->setup = btusb_setup_csr;
3999 }
4000
4001 if (id->driver_info & BTUSB_SNIFFER) {
4002 struct usb_device *udev = data->udev;
4003
4004 /* New sniffer firmware has crippled HCI interface */
4005 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
4006 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
4007 }
4008
4009 if (id->driver_info & BTUSB_INTEL_BOOT) {
4010 /* A bug in the bootloader causes that interrupt interface is
4011 * only enabled after receiving SetInterface(0, AltSetting=0).
4012 */
4013 err = usb_set_interface(data->udev, 0, 0);
4014 if (err < 0) {
4015 BT_ERR("failed to set interface 0, alt 0 %d", err);
4016 goto out_free_dev;
4017 }
4018 }
4019
4020 if (data->isoc) {
4021 err = usb_driver_claim_interface(&btusb_driver,
4022 data->isoc, data);
4023 if (err < 0)
4024 goto out_free_dev;
4025 }
4026
4027 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && data->diag) {
4028 if (!usb_driver_claim_interface(&btusb_driver,
4029 data->diag, data))
4030 __set_diag_interface(hdev);
4031 else
4032 data->diag = NULL;
4033 }
4034
4035 if (enable_autosuspend)
4036 usb_enable_autosuspend(data->udev);
4037
4038 data->poll_sync = enable_poll_sync;
4039
4040 err = hci_register_dev(hdev);
4041 if (err < 0)
4042 goto out_free_dev;
4043
4044 usb_set_intfdata(intf, data);
4045
4046 debugfs_create_file("force_poll_sync", 0644, hdev->debugfs, data,
4047 &force_poll_sync_fops);
4048
4049 return 0;
4050
4051out_free_dev:
4052 if (data->reset_gpio)
4053 gpiod_put(data->reset_gpio);
4054 hci_free_dev(hdev);
4055 return err;
4056}
4057
4058static void btusb_disconnect(struct usb_interface *intf)
4059{
4060 struct btusb_data *data = usb_get_intfdata(intf);
4061 struct hci_dev *hdev;
4062
4063 BT_DBG("intf %p", intf);
4064
4065 if (!data)
4066 return;
4067
4068 hdev = data->hdev;
4069 usb_set_intfdata(data->intf, NULL);
4070
4071 if (data->isoc)
4072 usb_set_intfdata(data->isoc, NULL);
4073
4074 if (data->diag)
4075 usb_set_intfdata(data->diag, NULL);
4076
4077 if (data->disconnect)
4078 data->disconnect(hdev);
4079
4080 hci_unregister_dev(hdev);
4081
4082 if (intf == data->intf) {
4083 if (data->isoc)
4084 usb_driver_release_interface(&btusb_driver, data->isoc);
4085 if (data->diag)
4086 usb_driver_release_interface(&btusb_driver, data->diag);
4087 } else if (intf == data->isoc) {
4088 if (data->diag)
4089 usb_driver_release_interface(&btusb_driver, data->diag);
4090 usb_driver_release_interface(&btusb_driver, data->intf);
4091 } else if (intf == data->diag) {
4092 usb_driver_release_interface(&btusb_driver, data->intf);
4093 if (data->isoc)
4094 usb_driver_release_interface(&btusb_driver, data->isoc);
4095 }
4096
4097 if (data->oob_wake_irq)
4098 device_init_wakeup(&data->udev->dev, false);
4099
4100 if (data->reset_gpio)
4101 gpiod_put(data->reset_gpio);
4102
4103 hci_free_dev(hdev);
4104}
4105
4106#ifdef CONFIG_PM
4107static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
4108{
4109 struct btusb_data *data = usb_get_intfdata(intf);
4110
4111 BT_DBG("intf %p", intf);
4112
4113 /* Don't auto-suspend if there are connections; external suspend calls
4114 * shall never fail.
4115 */
4116 if (PMSG_IS_AUTO(message) && hci_conn_count(data->hdev))
4117 return -EBUSY;
4118
4119 if (data->suspend_count++)
4120 return 0;
4121
4122 spin_lock_irq(&data->txlock);
4123 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
4124 set_bit(BTUSB_SUSPENDING, &data->flags);
4125 spin_unlock_irq(&data->txlock);
4126 } else {
4127 spin_unlock_irq(&data->txlock);
4128 data->suspend_count--;
4129 return -EBUSY;
4130 }
4131
4132 cancel_work_sync(&data->work);
4133
4134 if (data->suspend)
4135 data->suspend(data->hdev);
4136
4137 btusb_stop_traffic(data);
4138 usb_kill_anchored_urbs(&data->tx_anchor);
4139
4140 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) {
4141 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
4142 enable_irq_wake(data->oob_wake_irq);
4143 enable_irq(data->oob_wake_irq);
4144 }
4145
4146 /* For global suspend, Realtek devices lose the loaded fw
4147 * in them. But for autosuspend, firmware should remain.
4148 * Actually, it depends on whether the usb host sends
4149 * set feature (enable wakeup) or not.
4150 */
4151 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) {
4152 if (PMSG_IS_AUTO(message) &&
4153 device_can_wakeup(&data->udev->dev))
4154 data->udev->do_remote_wakeup = 1;
4155 else if (!PMSG_IS_AUTO(message) &&
4156 !device_may_wakeup(&data->udev->dev)) {
4157 data->udev->do_remote_wakeup = 0;
4158 data->udev->reset_resume = 1;
4159 }
4160 }
4161
4162 return 0;
4163}
4164
4165static void play_deferred(struct btusb_data *data)
4166{
4167 struct urb *urb;
4168 int err;
4169
4170 while ((urb = usb_get_from_anchor(&data->deferred))) {
4171 usb_anchor_urb(urb, &data->tx_anchor);
4172
4173 err = usb_submit_urb(urb, GFP_ATOMIC);
4174 if (err < 0) {
4175 if (err != -EPERM && err != -ENODEV)
4176 BT_ERR("%s urb %p submission failed (%d)",
4177 data->hdev->name, urb, -err);
4178 kfree(urb->setup_packet);
4179 usb_unanchor_urb(urb);
4180 usb_free_urb(urb);
4181 break;
4182 }
4183
4184 data->tx_in_flight++;
4185 usb_free_urb(urb);
4186 }
4187
4188 /* Cleanup the rest deferred urbs. */
4189 while ((urb = usb_get_from_anchor(&data->deferred))) {
4190 kfree(urb->setup_packet);
4191 usb_free_urb(urb);
4192 }
4193}
4194
4195static int btusb_resume(struct usb_interface *intf)
4196{
4197 struct btusb_data *data = usb_get_intfdata(intf);
4198 struct hci_dev *hdev = data->hdev;
4199 int err = 0;
4200
4201 BT_DBG("intf %p", intf);
4202
4203 if (--data->suspend_count)
4204 return 0;
4205
4206 /* Disable only if not already disabled (keep it balanced) */
4207 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
4208 disable_irq(data->oob_wake_irq);
4209 disable_irq_wake(data->oob_wake_irq);
4210 }
4211
4212 if (!test_bit(HCI_RUNNING, &hdev->flags))
4213 goto done;
4214
4215 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
4216 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
4217 if (err < 0) {
4218 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
4219 goto failed;
4220 }
4221 }
4222
4223 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
4224 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
4225 if (err < 0) {
4226 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
4227 goto failed;
4228 }
4229
4230 btusb_submit_bulk_urb(hdev, GFP_NOIO);
4231 }
4232
4233 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
4234 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
4235 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
4236 else
4237 btusb_submit_isoc_urb(hdev, GFP_NOIO);
4238 }
4239
4240 if (data->resume)
4241 data->resume(hdev);
4242
4243 spin_lock_irq(&data->txlock);
4244 play_deferred(data);
4245 clear_bit(BTUSB_SUSPENDING, &data->flags);
4246 spin_unlock_irq(&data->txlock);
4247 schedule_work(&data->work);
4248
4249 return 0;
4250
4251failed:
4252 usb_scuttle_anchored_urbs(&data->deferred);
4253done:
4254 spin_lock_irq(&data->txlock);
4255 clear_bit(BTUSB_SUSPENDING, &data->flags);
4256 spin_unlock_irq(&data->txlock);
4257
4258 return err;
4259}
4260#endif
4261
4262#ifdef CONFIG_DEV_COREDUMP
4263static void btusb_coredump(struct device *dev)
4264{
4265 struct btusb_data *data = dev_get_drvdata(dev);
4266 struct hci_dev *hdev = data->hdev;
4267
4268 if (hdev->dump.coredump)
4269 hdev->dump.coredump(hdev);
4270}
4271#endif
4272
4273static struct usb_driver btusb_driver = {
4274 .name = "btusb",
4275 .probe = btusb_probe,
4276 .disconnect = btusb_disconnect,
4277#ifdef CONFIG_PM
4278 .suspend = btusb_suspend,
4279 .resume = btusb_resume,
4280#endif
4281 .id_table = btusb_table,
4282 .supports_autosuspend = 1,
4283 .disable_hub_initiated_lpm = 1,
4284
4285#ifdef CONFIG_DEV_COREDUMP
4286 .driver = {
4287 .coredump = btusb_coredump,
4288 },
4289#endif
4290};
4291
4292module_usb_driver(btusb_driver);
4293
4294module_param(disable_scofix, bool, 0644);
4295MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
4296
4297module_param(force_scofix, bool, 0644);
4298MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
4299
4300module_param(enable_autosuspend, bool, 0644);
4301MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default");
4302
4303module_param(reset, bool, 0644);
4304MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
4305
4306MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
4307MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
4308MODULE_VERSION(VERSION);
4309MODULE_LICENSE("GPL");