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
32 static bool disable_scofix;
33 static bool force_scofix;
34 static bool enable_autosuspend = IS_ENABLED(CONFIG_BT_HCIBTUSB_AUTOSUSPEND);
35 static bool enable_poll_sync = IS_ENABLED(CONFIG_BT_HCIBTUSB_POLL_SYNC);
36 static bool reset = true;
37
38 static 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
69 static 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
176 MODULE_DEVICE_TABLE(usb, btusb_table);
177
178 static 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 8851BE Bluetooth devices */
487 { USB_DEVICE(0x13d3, 0x3600), .driver_info = BTUSB_REALTEK },
488
489 /* Realtek 8852AE Bluetooth devices */
490 { USB_DEVICE(0x0bda, 0x2852), .driver_info = BTUSB_REALTEK |
491 BTUSB_WIDEBAND_SPEECH },
492 { USB_DEVICE(0x0bda, 0xc852), .driver_info = BTUSB_REALTEK |
493 BTUSB_WIDEBAND_SPEECH },
494 { USB_DEVICE(0x0bda, 0x385a), .driver_info = BTUSB_REALTEK |
495 BTUSB_WIDEBAND_SPEECH },
496 { USB_DEVICE(0x0bda, 0x4852), .driver_info = BTUSB_REALTEK |
497 BTUSB_WIDEBAND_SPEECH },
498 { USB_DEVICE(0x04c5, 0x165c), .driver_info = BTUSB_REALTEK |
499 BTUSB_WIDEBAND_SPEECH },
500 { USB_DEVICE(0x04ca, 0x4006), .driver_info = BTUSB_REALTEK |
501 BTUSB_WIDEBAND_SPEECH },
502 { USB_DEVICE(0x0cb8, 0xc549), .driver_info = BTUSB_REALTEK |
503 BTUSB_WIDEBAND_SPEECH },
504
505 /* Realtek 8852CE Bluetooth devices */
506 { USB_DEVICE(0x04ca, 0x4007), .driver_info = BTUSB_REALTEK |
507 BTUSB_WIDEBAND_SPEECH },
508 { USB_DEVICE(0x04c5, 0x1675), .driver_info = BTUSB_REALTEK |
509 BTUSB_WIDEBAND_SPEECH },
510 { USB_DEVICE(0x0cb8, 0xc558), .driver_info = BTUSB_REALTEK |
511 BTUSB_WIDEBAND_SPEECH },
512 { USB_DEVICE(0x13d3, 0x3587), .driver_info = BTUSB_REALTEK |
513 BTUSB_WIDEBAND_SPEECH },
514 { USB_DEVICE(0x13d3, 0x3586), .driver_info = BTUSB_REALTEK |
515 BTUSB_WIDEBAND_SPEECH },
516 { USB_DEVICE(0x13d3, 0x3592), .driver_info = BTUSB_REALTEK |
517 BTUSB_WIDEBAND_SPEECH },
518 { USB_DEVICE(0x0489, 0xe122), .driver_info = BTUSB_REALTEK |
519 BTUSB_WIDEBAND_SPEECH },
520
521 /* Realtek 8852BE Bluetooth devices */
522 { USB_DEVICE(0x0cb8, 0xc559), .driver_info = BTUSB_REALTEK |
523 BTUSB_WIDEBAND_SPEECH },
524 { USB_DEVICE(0x0bda, 0x4853), .driver_info = BTUSB_REALTEK |
525 BTUSB_WIDEBAND_SPEECH },
526 { USB_DEVICE(0x0bda, 0x887b), .driver_info = BTUSB_REALTEK |
527 BTUSB_WIDEBAND_SPEECH },
528 { USB_DEVICE(0x0bda, 0xb85b), .driver_info = BTUSB_REALTEK |
529 BTUSB_WIDEBAND_SPEECH },
530 { USB_DEVICE(0x13d3, 0x3570), .driver_info = BTUSB_REALTEK |
531 BTUSB_WIDEBAND_SPEECH },
532 { USB_DEVICE(0x13d3, 0x3571), .driver_info = BTUSB_REALTEK |
533 BTUSB_WIDEBAND_SPEECH },
534 { USB_DEVICE(0x13d3, 0x3572), .driver_info = BTUSB_REALTEK |
535 BTUSB_WIDEBAND_SPEECH },
536 { USB_DEVICE(0x13d3, 0x3591), .driver_info = BTUSB_REALTEK |
537 BTUSB_WIDEBAND_SPEECH },
538 { USB_DEVICE(0x0489, 0xe123), .driver_info = BTUSB_REALTEK |
539 BTUSB_WIDEBAND_SPEECH },
540 { USB_DEVICE(0x0489, 0xe125), .driver_info = BTUSB_REALTEK |
541 BTUSB_WIDEBAND_SPEECH },
542
543 /* Realtek 8852BT/8852BE-VT Bluetooth devices */
544 { USB_DEVICE(0x0bda, 0x8520), .driver_info = BTUSB_REALTEK |
545 BTUSB_WIDEBAND_SPEECH },
546
547 /* Realtek 8922AE Bluetooth devices */
548 { USB_DEVICE(0x0bda, 0x8922), .driver_info = BTUSB_REALTEK |
549 BTUSB_WIDEBAND_SPEECH },
550 { USB_DEVICE(0x13d3, 0x3617), .driver_info = BTUSB_REALTEK |
551 BTUSB_WIDEBAND_SPEECH },
552 { USB_DEVICE(0x13d3, 0x3616), .driver_info = BTUSB_REALTEK |
553 BTUSB_WIDEBAND_SPEECH },
554 { USB_DEVICE(0x0489, 0xe130), .driver_info = BTUSB_REALTEK |
555 BTUSB_WIDEBAND_SPEECH },
556
557 /* Realtek Bluetooth devices */
558 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
559 .driver_info = BTUSB_REALTEK },
560
561 /* MediaTek Bluetooth devices */
562 { USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01),
563 .driver_info = BTUSB_MEDIATEK |
564 BTUSB_WIDEBAND_SPEECH },
565
566 /* Additional MediaTek MT7615E Bluetooth devices */
567 { USB_DEVICE(0x13d3, 0x3560), .driver_info = BTUSB_MEDIATEK},
568
569 /* Additional MediaTek MT7663 Bluetooth devices */
570 { USB_DEVICE(0x043e, 0x310c), .driver_info = BTUSB_MEDIATEK |
571 BTUSB_WIDEBAND_SPEECH },
572 { USB_DEVICE(0x04ca, 0x3801), .driver_info = BTUSB_MEDIATEK |
573 BTUSB_WIDEBAND_SPEECH },
574
575 /* Additional MediaTek MT7668 Bluetooth devices */
576 { USB_DEVICE(0x043e, 0x3109), .driver_info = BTUSB_MEDIATEK |
577 BTUSB_WIDEBAND_SPEECH },
578
579 /* Additional MediaTek MT7920 Bluetooth devices */
580 { USB_DEVICE(0x0489, 0xe134), .driver_info = BTUSB_MEDIATEK |
581 BTUSB_WIDEBAND_SPEECH },
582 { USB_DEVICE(0x13d3, 0x3620), .driver_info = BTUSB_MEDIATEK |
583 BTUSB_WIDEBAND_SPEECH },
584 { USB_DEVICE(0x13d3, 0x3621), .driver_info = BTUSB_MEDIATEK |
585 BTUSB_WIDEBAND_SPEECH },
586 { USB_DEVICE(0x13d3, 0x3622), .driver_info = BTUSB_MEDIATEK |
587 BTUSB_WIDEBAND_SPEECH },
588
589 /* Additional MediaTek MT7921 Bluetooth devices */
590 { USB_DEVICE(0x0489, 0xe0c8), .driver_info = BTUSB_MEDIATEK |
591 BTUSB_WIDEBAND_SPEECH },
592 { USB_DEVICE(0x0489, 0xe0cd), .driver_info = BTUSB_MEDIATEK |
593 BTUSB_WIDEBAND_SPEECH },
594 { USB_DEVICE(0x0489, 0xe0e0), .driver_info = BTUSB_MEDIATEK |
595 BTUSB_WIDEBAND_SPEECH },
596 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK |
597 BTUSB_WIDEBAND_SPEECH },
598 { USB_DEVICE(0x04ca, 0x3802), .driver_info = BTUSB_MEDIATEK |
599 BTUSB_WIDEBAND_SPEECH },
600 { USB_DEVICE(0x0e8d, 0x0608), .driver_info = BTUSB_MEDIATEK |
601 BTUSB_WIDEBAND_SPEECH },
602 { USB_DEVICE(0x13d3, 0x3563), .driver_info = BTUSB_MEDIATEK |
603 BTUSB_WIDEBAND_SPEECH },
604 { USB_DEVICE(0x13d3, 0x3564), .driver_info = BTUSB_MEDIATEK |
605 BTUSB_WIDEBAND_SPEECH },
606 { USB_DEVICE(0x13d3, 0x3567), .driver_info = BTUSB_MEDIATEK |
607 BTUSB_WIDEBAND_SPEECH },
608 { USB_DEVICE(0x13d3, 0x3576), .driver_info = BTUSB_MEDIATEK |
609 BTUSB_WIDEBAND_SPEECH },
610 { USB_DEVICE(0x13d3, 0x3578), .driver_info = BTUSB_MEDIATEK |
611 BTUSB_WIDEBAND_SPEECH },
612 { USB_DEVICE(0x13d3, 0x3583), .driver_info = BTUSB_MEDIATEK |
613 BTUSB_WIDEBAND_SPEECH },
614 { USB_DEVICE(0x13d3, 0x3606), .driver_info = BTUSB_MEDIATEK |
615 BTUSB_WIDEBAND_SPEECH },
616
617 /* MediaTek MT7922 Bluetooth devices */
618 { USB_DEVICE(0x13d3, 0x3585), .driver_info = BTUSB_MEDIATEK |
619 BTUSB_WIDEBAND_SPEECH },
620 { USB_DEVICE(0x13d3, 0x3610), .driver_info = BTUSB_MEDIATEK |
621 BTUSB_WIDEBAND_SPEECH },
622
623 /* MediaTek MT7922A Bluetooth devices */
624 { USB_DEVICE(0x0489, 0xe0d8), .driver_info = BTUSB_MEDIATEK |
625 BTUSB_WIDEBAND_SPEECH },
626 { USB_DEVICE(0x0489, 0xe0d9), .driver_info = BTUSB_MEDIATEK |
627 BTUSB_WIDEBAND_SPEECH },
628 { USB_DEVICE(0x0489, 0xe0e2), .driver_info = BTUSB_MEDIATEK |
629 BTUSB_WIDEBAND_SPEECH },
630 { USB_DEVICE(0x0489, 0xe0e4), .driver_info = BTUSB_MEDIATEK |
631 BTUSB_WIDEBAND_SPEECH },
632 { USB_DEVICE(0x0489, 0xe0f1), .driver_info = BTUSB_MEDIATEK |
633 BTUSB_WIDEBAND_SPEECH },
634 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK |
635 BTUSB_WIDEBAND_SPEECH },
636 { USB_DEVICE(0x0489, 0xe0f5), .driver_info = BTUSB_MEDIATEK |
637 BTUSB_WIDEBAND_SPEECH },
638 { USB_DEVICE(0x0489, 0xe0f6), .driver_info = BTUSB_MEDIATEK |
639 BTUSB_WIDEBAND_SPEECH },
640 { USB_DEVICE(0x0489, 0xe102), .driver_info = BTUSB_MEDIATEK |
641 BTUSB_WIDEBAND_SPEECH },
642 { USB_DEVICE(0x04ca, 0x3804), .driver_info = BTUSB_MEDIATEK |
643 BTUSB_WIDEBAND_SPEECH },
644 { USB_DEVICE(0x04ca, 0x38e4), .driver_info = BTUSB_MEDIATEK |
645 BTUSB_WIDEBAND_SPEECH },
646 { USB_DEVICE(0x13d3, 0x3568), .driver_info = BTUSB_MEDIATEK |
647 BTUSB_WIDEBAND_SPEECH },
648 { USB_DEVICE(0x13d3, 0x3605), .driver_info = BTUSB_MEDIATEK |
649 BTUSB_WIDEBAND_SPEECH },
650 { USB_DEVICE(0x13d3, 0x3607), .driver_info = BTUSB_MEDIATEK |
651 BTUSB_WIDEBAND_SPEECH },
652 { USB_DEVICE(0x13d3, 0x3614), .driver_info = BTUSB_MEDIATEK |
653 BTUSB_WIDEBAND_SPEECH },
654 { USB_DEVICE(0x13d3, 0x3615), .driver_info = BTUSB_MEDIATEK |
655 BTUSB_WIDEBAND_SPEECH },
656 { USB_DEVICE(0x35f5, 0x7922), .driver_info = BTUSB_MEDIATEK |
657 BTUSB_WIDEBAND_SPEECH },
658
659 /* Additional MediaTek MT7925 Bluetooth devices */
660 { USB_DEVICE(0x0489, 0xe111), .driver_info = BTUSB_MEDIATEK |
661 BTUSB_WIDEBAND_SPEECH },
662 { USB_DEVICE(0x0489, 0xe113), .driver_info = BTUSB_MEDIATEK |
663 BTUSB_WIDEBAND_SPEECH },
664 { USB_DEVICE(0x0489, 0xe118), .driver_info = BTUSB_MEDIATEK |
665 BTUSB_WIDEBAND_SPEECH },
666 { USB_DEVICE(0x0489, 0xe11e), .driver_info = BTUSB_MEDIATEK |
667 BTUSB_WIDEBAND_SPEECH },
668 { USB_DEVICE(0x0489, 0xe124), .driver_info = BTUSB_MEDIATEK |
669 BTUSB_WIDEBAND_SPEECH },
670 { USB_DEVICE(0x0489, 0xe139), .driver_info = BTUSB_MEDIATEK |
671 BTUSB_WIDEBAND_SPEECH },
672 { USB_DEVICE(0x0489, 0xe14f), .driver_info = BTUSB_MEDIATEK |
673 BTUSB_WIDEBAND_SPEECH },
674 { USB_DEVICE(0x0489, 0xe150), .driver_info = BTUSB_MEDIATEK |
675 BTUSB_WIDEBAND_SPEECH },
676 { USB_DEVICE(0x0489, 0xe151), .driver_info = BTUSB_MEDIATEK |
677 BTUSB_WIDEBAND_SPEECH },
678 { USB_DEVICE(0x13d3, 0x3602), .driver_info = BTUSB_MEDIATEK |
679 BTUSB_WIDEBAND_SPEECH },
680 { USB_DEVICE(0x13d3, 0x3603), .driver_info = BTUSB_MEDIATEK |
681 BTUSB_WIDEBAND_SPEECH },
682 { USB_DEVICE(0x13d3, 0x3604), .driver_info = BTUSB_MEDIATEK |
683 BTUSB_WIDEBAND_SPEECH },
684 { USB_DEVICE(0x13d3, 0x3608), .driver_info = BTUSB_MEDIATEK |
685 BTUSB_WIDEBAND_SPEECH },
686 { USB_DEVICE(0x13d3, 0x3628), .driver_info = BTUSB_MEDIATEK |
687 BTUSB_WIDEBAND_SPEECH },
688
689 /* Additional Realtek 8723AE Bluetooth devices */
690 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
691 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
692
693 /* Additional Realtek 8723BE Bluetooth devices */
694 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
695 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
696 { USB_DEVICE(0x04f2, 0xb49f), .driver_info = BTUSB_REALTEK },
697 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
698 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
699 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
700 { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK },
701
702 /* Additional Realtek 8723BU Bluetooth devices */
703 { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK },
704
705 /* Additional Realtek 8723DE Bluetooth devices */
706 { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK },
707 { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK },
708
709 /* Additional Realtek 8761BUV Bluetooth devices */
710 { USB_DEVICE(0x2357, 0x0604), .driver_info = BTUSB_REALTEK |
711 BTUSB_WIDEBAND_SPEECH },
712 { USB_DEVICE(0x0b05, 0x190e), .driver_info = BTUSB_REALTEK |
713 BTUSB_WIDEBAND_SPEECH },
714 { USB_DEVICE(0x2550, 0x8761), .driver_info = BTUSB_REALTEK |
715 BTUSB_WIDEBAND_SPEECH },
716 { USB_DEVICE(0x0bda, 0x8771), .driver_info = BTUSB_REALTEK |
717 BTUSB_WIDEBAND_SPEECH },
718 { USB_DEVICE(0x6655, 0x8771), .driver_info = BTUSB_REALTEK |
719 BTUSB_WIDEBAND_SPEECH },
720 { USB_DEVICE(0x7392, 0xc611), .driver_info = BTUSB_REALTEK |
721 BTUSB_WIDEBAND_SPEECH },
722 { USB_DEVICE(0x2b89, 0x8761), .driver_info = BTUSB_REALTEK |
723 BTUSB_WIDEBAND_SPEECH },
724
725 /* Additional Realtek 8821AE Bluetooth devices */
726 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
727 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
728 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
729 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
730 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
731
732 /* Additional Realtek 8822BE Bluetooth devices */
733 { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK },
734 { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK },
735
736 /* Additional Realtek 8822CE Bluetooth devices */
737 { USB_DEVICE(0x04ca, 0x4005), .driver_info = BTUSB_REALTEK |
738 BTUSB_WIDEBAND_SPEECH },
739 { USB_DEVICE(0x04c5, 0x161f), .driver_info = BTUSB_REALTEK |
740 BTUSB_WIDEBAND_SPEECH },
741 { USB_DEVICE(0x0b05, 0x18ef), .driver_info = BTUSB_REALTEK |
742 BTUSB_WIDEBAND_SPEECH },
743 { USB_DEVICE(0x13d3, 0x3548), .driver_info = BTUSB_REALTEK |
744 BTUSB_WIDEBAND_SPEECH },
745 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK |
746 BTUSB_WIDEBAND_SPEECH },
747 { USB_DEVICE(0x13d3, 0x3553), .driver_info = BTUSB_REALTEK |
748 BTUSB_WIDEBAND_SPEECH },
749 { USB_DEVICE(0x13d3, 0x3555), .driver_info = BTUSB_REALTEK |
750 BTUSB_WIDEBAND_SPEECH },
751 { USB_DEVICE(0x2ff8, 0x3051), .driver_info = BTUSB_REALTEK |
752 BTUSB_WIDEBAND_SPEECH },
753 { USB_DEVICE(0x1358, 0xc123), .driver_info = BTUSB_REALTEK |
754 BTUSB_WIDEBAND_SPEECH },
755 { USB_DEVICE(0x0bda, 0xc123), .driver_info = BTUSB_REALTEK |
756 BTUSB_WIDEBAND_SPEECH },
757 { USB_DEVICE(0x0cb5, 0xc547), .driver_info = BTUSB_REALTEK |
758 BTUSB_WIDEBAND_SPEECH },
759
760 /* Actions Semiconductor ATS2851 based devices */
761 { USB_DEVICE(0x10d7, 0xb012), .driver_info = BTUSB_ACTIONS_SEMI },
762
763 /* Silicon Wave based devices */
764 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE },
765
766 { } /* Terminating entry */
767 };
768
769 /* The Bluetooth USB module build into some devices needs to be reset on resume,
770 * this is a problem with the platform (likely shutting off all power) not with
771 * the module itself. So we use a DMI list to match known broken platforms.
772 */
773 static const struct dmi_system_id btusb_needs_reset_resume_table[] = {
774 {
775 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */
776 .matches = {
777 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
778 DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"),
779 },
780 },
781 {
782 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */
783 .matches = {
784 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
785 DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"),
786 },
787 },
788 {
789 /* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */
790 .matches = {
791 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
792 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"),
793 },
794 },
795 {}
796 };
797
798 struct qca_dump_info {
799 /* fields for dump collection */
800 u16 id_vendor;
801 u16 id_product;
802 u32 fw_version;
803 u32 controller_id;
804 u32 ram_dump_size;
805 u16 ram_dump_seqno;
806 };
807
808 #define BTUSB_MAX_ISOC_FRAMES 10
809
810 #define BTUSB_INTR_RUNNING 0
811 #define BTUSB_BULK_RUNNING 1
812 #define BTUSB_ISOC_RUNNING 2
813 #define BTUSB_SUSPENDING 3
814 #define BTUSB_DID_ISO_RESUME 4
815 #define BTUSB_BOOTLOADER 5
816 #define BTUSB_DOWNLOADING 6
817 #define BTUSB_FIRMWARE_LOADED 7
818 #define BTUSB_FIRMWARE_FAILED 8
819 #define BTUSB_BOOTING 9
820 #define BTUSB_DIAG_RUNNING 10
821 #define BTUSB_OOB_WAKE_ENABLED 11
822 #define BTUSB_HW_RESET_ACTIVE 12
823 #define BTUSB_TX_WAIT_VND_EVT 13
824 #define BTUSB_WAKEUP_AUTOSUSPEND 14
825 #define BTUSB_USE_ALT3_FOR_WBS 15
826 #define BTUSB_ALT6_CONTINUOUS_TX 16
827 #define BTUSB_HW_SSR_ACTIVE 17
828
829 struct btusb_data {
830 struct hci_dev *hdev;
831 struct usb_device *udev;
832 struct usb_interface *intf;
833 struct usb_interface *isoc;
834 struct usb_interface *diag;
835 unsigned isoc_ifnum;
836
837 unsigned long flags;
838
839 bool poll_sync;
840 int intr_interval;
841 struct work_struct work;
842 struct work_struct waker;
843 struct delayed_work rx_work;
844
845 struct sk_buff_head acl_q;
846
847 struct usb_anchor deferred;
848 struct usb_anchor tx_anchor;
849 int tx_in_flight;
850 spinlock_t txlock;
851
852 struct usb_anchor intr_anchor;
853 struct usb_anchor bulk_anchor;
854 struct usb_anchor isoc_anchor;
855 struct usb_anchor diag_anchor;
856 struct usb_anchor ctrl_anchor;
857 spinlock_t rxlock;
858
859 struct sk_buff *evt_skb;
860 struct sk_buff *acl_skb;
861 struct sk_buff *sco_skb;
862
863 struct usb_endpoint_descriptor *intr_ep;
864 struct usb_endpoint_descriptor *bulk_tx_ep;
865 struct usb_endpoint_descriptor *bulk_rx_ep;
866 struct usb_endpoint_descriptor *isoc_tx_ep;
867 struct usb_endpoint_descriptor *isoc_rx_ep;
868 struct usb_endpoint_descriptor *diag_tx_ep;
869 struct usb_endpoint_descriptor *diag_rx_ep;
870
871 struct gpio_desc *reset_gpio;
872
873 __u8 cmdreq_type;
874 __u8 cmdreq;
875
876 unsigned int sco_num;
877 unsigned int air_mode;
878 bool usb_alt6_packet_flow;
879 int isoc_altsetting;
880 int suspend_count;
881
882 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
883 int (*recv_acl)(struct hci_dev *hdev, struct sk_buff *skb);
884 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
885
886 int (*setup_on_usb)(struct hci_dev *hdev);
887
888 int (*suspend)(struct hci_dev *hdev);
889 int (*resume)(struct hci_dev *hdev);
890 int (*disconnect)(struct hci_dev *hdev);
891
892 int oob_wake_irq; /* irq for out-of-band wake-on-bt */
893
894 struct qca_dump_info qca_dump;
895 };
896
btusb_reset(struct hci_dev * hdev)897 static void btusb_reset(struct hci_dev *hdev)
898 {
899 struct btusb_data *data;
900 int err;
901
902 data = hci_get_drvdata(hdev);
903 /* This is not an unbalanced PM reference since the device will reset */
904 err = usb_autopm_get_interface(data->intf);
905 if (err) {
906 bt_dev_err(hdev, "Failed usb_autopm_get_interface: %d", err);
907 return;
908 }
909
910 bt_dev_err(hdev, "Resetting usb device.");
911 usb_queue_reset_device(data->intf);
912 }
913
btusb_intel_reset(struct hci_dev * hdev)914 static void btusb_intel_reset(struct hci_dev *hdev)
915 {
916 struct btusb_data *data = hci_get_drvdata(hdev);
917 struct gpio_desc *reset_gpio = data->reset_gpio;
918 struct btintel_data *intel_data = hci_get_priv(hdev);
919
920 if (intel_data->acpi_reset_method) {
921 if (test_and_set_bit(INTEL_ACPI_RESET_ACTIVE, intel_data->flags)) {
922 bt_dev_err(hdev, "acpi: last reset failed ? Not resetting again");
923 return;
924 }
925
926 bt_dev_err(hdev, "Initiating acpi reset method");
927 /* If ACPI reset method fails, lets try with legacy GPIO
928 * toggling
929 */
930 if (!intel_data->acpi_reset_method(hdev)) {
931 return;
932 }
933 }
934
935 if (!reset_gpio) {
936 btusb_reset(hdev);
937 return;
938 }
939
940 /*
941 * Toggle the hard reset line if the platform provides one. The reset
942 * is going to yank the device off the USB and then replug. So doing
943 * once is enough. The cleanup is handled correctly on the way out
944 * (standard USB disconnect), and the new device is detected cleanly
945 * and bound to the driver again like it should be.
946 */
947 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
948 bt_dev_err(hdev, "last reset failed? Not resetting again");
949 return;
950 }
951
952 bt_dev_err(hdev, "Initiating HW reset via gpio");
953 gpiod_set_value_cansleep(reset_gpio, 1);
954 msleep(100);
955 gpiod_set_value_cansleep(reset_gpio, 0);
956 }
957
958 #define RTK_DEVCOREDUMP_CODE_MEMDUMP 0x01
959 #define RTK_DEVCOREDUMP_CODE_HW_ERR 0x02
960 #define RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT 0x03
961
962 #define RTK_SUB_EVENT_CODE_COREDUMP 0x34
963
964 struct rtk_dev_coredump_hdr {
965 u8 type;
966 u8 code;
967 u8 reserved[2];
968 } __packed;
969
btusb_rtl_alloc_devcoredump(struct hci_dev * hdev,struct rtk_dev_coredump_hdr * hdr,u8 * buf,u32 len)970 static inline void btusb_rtl_alloc_devcoredump(struct hci_dev *hdev,
971 struct rtk_dev_coredump_hdr *hdr, u8 *buf, u32 len)
972 {
973 struct sk_buff *skb;
974
975 skb = alloc_skb(len + sizeof(*hdr), GFP_ATOMIC);
976 if (!skb)
977 return;
978
979 skb_put_data(skb, hdr, sizeof(*hdr));
980 if (len)
981 skb_put_data(skb, buf, len);
982
983 if (!hci_devcd_init(hdev, skb->len)) {
984 hci_devcd_append(hdev, skb);
985 hci_devcd_complete(hdev);
986 } else {
987 bt_dev_err(hdev, "RTL: Failed to generate devcoredump");
988 kfree_skb(skb);
989 }
990 }
991
btusb_rtl_reset(struct hci_dev * hdev)992 static void btusb_rtl_reset(struct hci_dev *hdev)
993 {
994 struct btusb_data *data = hci_get_drvdata(hdev);
995 struct gpio_desc *reset_gpio = data->reset_gpio;
996 struct rtk_dev_coredump_hdr hdr = {
997 .type = RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT,
998 };
999
1000 btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0);
1001
1002 if (!reset_gpio) {
1003 btusb_reset(hdev);
1004 return;
1005 }
1006
1007 /* Toggle the hard reset line. The Realtek device is going to
1008 * yank itself off the USB and then replug. The cleanup is handled
1009 * correctly on the way out (standard USB disconnect), and the new
1010 * device is detected cleanly and bound to the driver again like
1011 * it should be.
1012 */
1013 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
1014 bt_dev_err(hdev, "last reset failed? Not resetting again");
1015 return;
1016 }
1017
1018 bt_dev_err(hdev, "Reset Realtek device via gpio");
1019 gpiod_set_value_cansleep(reset_gpio, 1);
1020 msleep(200);
1021 gpiod_set_value_cansleep(reset_gpio, 0);
1022 }
1023
btusb_rtl_hw_error(struct hci_dev * hdev,u8 code)1024 static void btusb_rtl_hw_error(struct hci_dev *hdev, u8 code)
1025 {
1026 struct rtk_dev_coredump_hdr hdr = {
1027 .type = RTK_DEVCOREDUMP_CODE_HW_ERR,
1028 .code = code,
1029 };
1030
1031 bt_dev_err(hdev, "RTL: hw err, trigger devcoredump (%d)", code);
1032
1033 btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0);
1034 }
1035
btusb_qca_reset(struct hci_dev * hdev)1036 static void btusb_qca_reset(struct hci_dev *hdev)
1037 {
1038 struct btusb_data *data = hci_get_drvdata(hdev);
1039 struct gpio_desc *reset_gpio = data->reset_gpio;
1040
1041 if (test_bit(BTUSB_HW_SSR_ACTIVE, &data->flags)) {
1042 bt_dev_info(hdev, "Ramdump in progress, defer reset");
1043 return;
1044 }
1045
1046 if (reset_gpio) {
1047 bt_dev_err(hdev, "Reset qca device via bt_en gpio");
1048
1049 /* Toggle the hard reset line. The qca bt device is going to
1050 * yank itself off the USB and then replug. The cleanup is handled
1051 * correctly on the way out (standard USB disconnect), and the new
1052 * device is detected cleanly and bound to the driver again like
1053 * it should be.
1054 */
1055 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
1056 bt_dev_err(hdev, "last reset failed? Not resetting again");
1057 return;
1058 }
1059
1060 gpiod_set_value_cansleep(reset_gpio, 0);
1061 msleep(200);
1062 gpiod_set_value_cansleep(reset_gpio, 1);
1063
1064 return;
1065 }
1066
1067 btusb_reset(hdev);
1068 }
1069
btusb_free_frags(struct btusb_data * data)1070 static inline void btusb_free_frags(struct btusb_data *data)
1071 {
1072 unsigned long flags;
1073
1074 spin_lock_irqsave(&data->rxlock, flags);
1075
1076 dev_kfree_skb_irq(data->evt_skb);
1077 data->evt_skb = NULL;
1078
1079 dev_kfree_skb_irq(data->acl_skb);
1080 data->acl_skb = NULL;
1081
1082 dev_kfree_skb_irq(data->sco_skb);
1083 data->sco_skb = NULL;
1084
1085 spin_unlock_irqrestore(&data->rxlock, flags);
1086 }
1087
btusb_recv_event(struct btusb_data * data,struct sk_buff * skb)1088 static int btusb_recv_event(struct btusb_data *data, struct sk_buff *skb)
1089 {
1090 if (data->intr_interval) {
1091 /* Trigger dequeue immediately if an event is received */
1092 schedule_delayed_work(&data->rx_work, 0);
1093 }
1094
1095 return data->recv_event(data->hdev, skb);
1096 }
1097
btusb_recv_intr(struct btusb_data * data,void * buffer,int count)1098 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
1099 {
1100 struct sk_buff *skb;
1101 unsigned long flags;
1102 int err = 0;
1103
1104 spin_lock_irqsave(&data->rxlock, flags);
1105 skb = data->evt_skb;
1106
1107 while (count) {
1108 int len;
1109
1110 if (!skb) {
1111 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
1112 if (!skb) {
1113 err = -ENOMEM;
1114 break;
1115 }
1116
1117 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
1118 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE;
1119 }
1120
1121 len = min_t(uint, hci_skb_expect(skb), count);
1122 skb_put_data(skb, buffer, len);
1123
1124 count -= len;
1125 buffer += len;
1126 hci_skb_expect(skb) -= len;
1127
1128 if (skb->len == HCI_EVENT_HDR_SIZE) {
1129 /* Complete event header */
1130 hci_skb_expect(skb) = hci_event_hdr(skb)->plen;
1131
1132 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
1133 kfree_skb(skb);
1134 skb = NULL;
1135
1136 err = -EILSEQ;
1137 break;
1138 }
1139 }
1140
1141 if (!hci_skb_expect(skb)) {
1142 /* Complete frame */
1143 btusb_recv_event(data, skb);
1144 skb = NULL;
1145 }
1146 }
1147
1148 data->evt_skb = skb;
1149 spin_unlock_irqrestore(&data->rxlock, flags);
1150
1151 return err;
1152 }
1153
btusb_recv_acl(struct btusb_data * data,struct sk_buff * skb)1154 static int btusb_recv_acl(struct btusb_data *data, struct sk_buff *skb)
1155 {
1156 /* Only queue ACL packet if intr_interval is set as it means
1157 * force_poll_sync has been enabled.
1158 */
1159 if (!data->intr_interval)
1160 return data->recv_acl(data->hdev, skb);
1161
1162 skb_queue_tail(&data->acl_q, skb);
1163 schedule_delayed_work(&data->rx_work, data->intr_interval);
1164
1165 return 0;
1166 }
1167
btusb_recv_bulk(struct btusb_data * data,void * buffer,int count)1168 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
1169 {
1170 struct sk_buff *skb;
1171 unsigned long flags;
1172 int err = 0;
1173
1174 spin_lock_irqsave(&data->rxlock, flags);
1175 skb = data->acl_skb;
1176
1177 while (count) {
1178 int len;
1179
1180 if (!skb) {
1181 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
1182 if (!skb) {
1183 err = -ENOMEM;
1184 break;
1185 }
1186
1187 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT;
1188 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE;
1189 }
1190
1191 len = min_t(uint, hci_skb_expect(skb), count);
1192 skb_put_data(skb, buffer, len);
1193
1194 count -= len;
1195 buffer += len;
1196 hci_skb_expect(skb) -= len;
1197
1198 if (skb->len == HCI_ACL_HDR_SIZE) {
1199 __le16 dlen = hci_acl_hdr(skb)->dlen;
1200
1201 /* Complete ACL header */
1202 hci_skb_expect(skb) = __le16_to_cpu(dlen);
1203
1204 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
1205 kfree_skb(skb);
1206 skb = NULL;
1207
1208 err = -EILSEQ;
1209 break;
1210 }
1211 }
1212
1213 if (!hci_skb_expect(skb)) {
1214 /* Complete frame */
1215 btusb_recv_acl(data, skb);
1216 skb = NULL;
1217 }
1218 }
1219
1220 data->acl_skb = skb;
1221 spin_unlock_irqrestore(&data->rxlock, flags);
1222
1223 return err;
1224 }
1225
btusb_validate_sco_handle(struct hci_dev * hdev,struct hci_sco_hdr * hdr)1226 static bool btusb_validate_sco_handle(struct hci_dev *hdev,
1227 struct hci_sco_hdr *hdr)
1228 {
1229 __u16 handle;
1230
1231 if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL))
1232 // Can't validate, userspace controls everything.
1233 return true;
1234
1235 /*
1236 * USB isochronous transfers are not designed to be reliable and may
1237 * lose fragments. When this happens, the next first fragment
1238 * encountered might actually be a continuation fragment.
1239 * Validate the handle to detect it and drop it, or else the upper
1240 * layer will get garbage for a while.
1241 */
1242
1243 handle = hci_handle(__le16_to_cpu(hdr->handle));
1244
1245 switch (hci_conn_lookup_type(hdev, handle)) {
1246 case SCO_LINK:
1247 case ESCO_LINK:
1248 return true;
1249 default:
1250 return false;
1251 }
1252 }
1253
btusb_recv_isoc(struct btusb_data * data,void * buffer,int count)1254 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
1255 {
1256 struct sk_buff *skb;
1257 unsigned long flags;
1258 int err = 0;
1259
1260 spin_lock_irqsave(&data->rxlock, flags);
1261 skb = data->sco_skb;
1262
1263 while (count) {
1264 int len;
1265
1266 if (!skb) {
1267 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
1268 if (!skb) {
1269 err = -ENOMEM;
1270 break;
1271 }
1272
1273 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT;
1274 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE;
1275 }
1276
1277 len = min_t(uint, hci_skb_expect(skb), count);
1278 skb_put_data(skb, buffer, len);
1279
1280 count -= len;
1281 buffer += len;
1282 hci_skb_expect(skb) -= len;
1283
1284 if (skb->len == HCI_SCO_HDR_SIZE) {
1285 /* Complete SCO header */
1286 struct hci_sco_hdr *hdr = hci_sco_hdr(skb);
1287
1288 hci_skb_expect(skb) = hdr->dlen;
1289
1290 if (skb_tailroom(skb) < hci_skb_expect(skb) ||
1291 !btusb_validate_sco_handle(data->hdev, hdr)) {
1292 kfree_skb(skb);
1293 skb = NULL;
1294
1295 err = -EILSEQ;
1296 break;
1297 }
1298 }
1299
1300 if (!hci_skb_expect(skb)) {
1301 /* Complete frame */
1302 hci_recv_frame(data->hdev, skb);
1303 skb = NULL;
1304 }
1305 }
1306
1307 data->sco_skb = skb;
1308 spin_unlock_irqrestore(&data->rxlock, flags);
1309
1310 return err;
1311 }
1312
btusb_intr_complete(struct urb * urb)1313 static void btusb_intr_complete(struct urb *urb)
1314 {
1315 struct hci_dev *hdev = urb->context;
1316 struct btusb_data *data = hci_get_drvdata(hdev);
1317 int err;
1318
1319 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1320 urb->actual_length);
1321
1322 if (!test_bit(HCI_RUNNING, &hdev->flags))
1323 return;
1324
1325 if (urb->status == 0) {
1326 hdev->stat.byte_rx += urb->actual_length;
1327
1328 if (btusb_recv_intr(data, urb->transfer_buffer,
1329 urb->actual_length) < 0) {
1330 bt_dev_err(hdev, "corrupted event packet");
1331 hdev->stat.err_rx++;
1332 }
1333 } else if (urb->status == -ENOENT) {
1334 /* Avoid suspend failed when usb_kill_urb */
1335 return;
1336 }
1337
1338 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
1339 return;
1340
1341 usb_mark_last_busy(data->udev);
1342 usb_anchor_urb(urb, &data->intr_anchor);
1343
1344 err = usb_submit_urb(urb, GFP_ATOMIC);
1345 if (err < 0) {
1346 /* -EPERM: urb is being killed;
1347 * -ENODEV: device got disconnected
1348 */
1349 if (err != -EPERM && err != -ENODEV)
1350 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1351 urb, -err);
1352 if (err != -EPERM)
1353 hci_cmd_sync_cancel(hdev, -err);
1354 usb_unanchor_urb(urb);
1355 }
1356 }
1357
btusb_submit_intr_urb(struct hci_dev * hdev,gfp_t mem_flags)1358 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
1359 {
1360 struct btusb_data *data = hci_get_drvdata(hdev);
1361 struct urb *urb;
1362 unsigned char *buf;
1363 unsigned int pipe;
1364 int err, size;
1365
1366 BT_DBG("%s", hdev->name);
1367
1368 if (!data->intr_ep)
1369 return -ENODEV;
1370
1371 urb = usb_alloc_urb(0, mem_flags);
1372 if (!urb)
1373 return -ENOMEM;
1374
1375 if (le16_to_cpu(data->udev->descriptor.idVendor) == 0x0a12 &&
1376 le16_to_cpu(data->udev->descriptor.idProduct) == 0x0001)
1377 /* Fake CSR devices don't seem to support sort-transter */
1378 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
1379 else
1380 /* Use maximum HCI Event size so the USB stack handles
1381 * ZPL/short-transfer automatically.
1382 */
1383 size = HCI_MAX_EVENT_SIZE;
1384
1385 buf = kmalloc(size, mem_flags);
1386 if (!buf) {
1387 usb_free_urb(urb);
1388 return -ENOMEM;
1389 }
1390
1391 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
1392
1393 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
1394 btusb_intr_complete, hdev, data->intr_ep->bInterval);
1395
1396 urb->transfer_flags |= URB_FREE_BUFFER;
1397
1398 usb_anchor_urb(urb, &data->intr_anchor);
1399
1400 err = usb_submit_urb(urb, mem_flags);
1401 if (err < 0) {
1402 if (err != -EPERM && err != -ENODEV)
1403 bt_dev_err(hdev, "urb %p submission failed (%d)",
1404 urb, -err);
1405 if (err != -EPERM)
1406 hci_cmd_sync_cancel(hdev, -err);
1407 usb_unanchor_urb(urb);
1408 }
1409
1410 /* Only initialize intr_interval if URB poll sync is enabled */
1411 if (!data->poll_sync)
1412 goto done;
1413
1414 /* The units are frames (milliseconds) for full and low speed devices,
1415 * and microframes (1/8 millisecond) for highspeed and SuperSpeed
1416 * devices.
1417 *
1418 * This is done once on open/resume so it shouldn't change even if
1419 * force_poll_sync changes.
1420 */
1421 switch (urb->dev->speed) {
1422 case USB_SPEED_SUPER_PLUS:
1423 case USB_SPEED_SUPER: /* units are 125us */
1424 data->intr_interval = usecs_to_jiffies(urb->interval * 125);
1425 break;
1426 default:
1427 data->intr_interval = msecs_to_jiffies(urb->interval);
1428 break;
1429 }
1430
1431 done:
1432 usb_free_urb(urb);
1433
1434 return err;
1435 }
1436
btusb_bulk_complete(struct urb * urb)1437 static void btusb_bulk_complete(struct urb *urb)
1438 {
1439 struct hci_dev *hdev = urb->context;
1440 struct btusb_data *data = hci_get_drvdata(hdev);
1441 int err;
1442
1443 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1444 urb->actual_length);
1445
1446 if (!test_bit(HCI_RUNNING, &hdev->flags))
1447 return;
1448
1449 if (urb->status == 0) {
1450 hdev->stat.byte_rx += urb->actual_length;
1451
1452 if (data->recv_bulk(data, urb->transfer_buffer,
1453 urb->actual_length) < 0) {
1454 bt_dev_err(hdev, "corrupted ACL packet");
1455 hdev->stat.err_rx++;
1456 }
1457 } else if (urb->status == -ENOENT) {
1458 /* Avoid suspend failed when usb_kill_urb */
1459 return;
1460 }
1461
1462 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
1463 return;
1464
1465 usb_anchor_urb(urb, &data->bulk_anchor);
1466 usb_mark_last_busy(data->udev);
1467
1468 err = usb_submit_urb(urb, GFP_ATOMIC);
1469 if (err < 0) {
1470 /* -EPERM: urb is being killed;
1471 * -ENODEV: device got disconnected
1472 */
1473 if (err != -EPERM && err != -ENODEV)
1474 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1475 urb, -err);
1476 usb_unanchor_urb(urb);
1477 }
1478 }
1479
btusb_submit_bulk_urb(struct hci_dev * hdev,gfp_t mem_flags)1480 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
1481 {
1482 struct btusb_data *data = hci_get_drvdata(hdev);
1483 struct urb *urb;
1484 unsigned char *buf;
1485 unsigned int pipe;
1486 int err, size = HCI_MAX_FRAME_SIZE;
1487
1488 BT_DBG("%s", hdev->name);
1489
1490 if (!data->bulk_rx_ep)
1491 return -ENODEV;
1492
1493 urb = usb_alloc_urb(0, mem_flags);
1494 if (!urb)
1495 return -ENOMEM;
1496
1497 buf = kmalloc(size, mem_flags);
1498 if (!buf) {
1499 usb_free_urb(urb);
1500 return -ENOMEM;
1501 }
1502
1503 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
1504
1505 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1506 btusb_bulk_complete, hdev);
1507
1508 urb->transfer_flags |= URB_FREE_BUFFER;
1509
1510 usb_mark_last_busy(data->udev);
1511 usb_anchor_urb(urb, &data->bulk_anchor);
1512
1513 err = usb_submit_urb(urb, mem_flags);
1514 if (err < 0) {
1515 if (err != -EPERM && err != -ENODEV)
1516 bt_dev_err(hdev, "urb %p submission failed (%d)",
1517 urb, -err);
1518 usb_unanchor_urb(urb);
1519 }
1520
1521 usb_free_urb(urb);
1522
1523 return err;
1524 }
1525
btusb_isoc_complete(struct urb * urb)1526 static void btusb_isoc_complete(struct urb *urb)
1527 {
1528 struct hci_dev *hdev = urb->context;
1529 struct btusb_data *data = hci_get_drvdata(hdev);
1530 int i, err;
1531
1532 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1533 urb->actual_length);
1534
1535 if (!test_bit(HCI_RUNNING, &hdev->flags))
1536 return;
1537
1538 if (urb->status == 0) {
1539 for (i = 0; i < urb->number_of_packets; i++) {
1540 unsigned int offset = urb->iso_frame_desc[i].offset;
1541 unsigned int length = urb->iso_frame_desc[i].actual_length;
1542
1543 if (urb->iso_frame_desc[i].status)
1544 continue;
1545
1546 hdev->stat.byte_rx += length;
1547
1548 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
1549 length) < 0) {
1550 bt_dev_err(hdev, "corrupted SCO packet");
1551 hdev->stat.err_rx++;
1552 }
1553 }
1554 } else if (urb->status == -ENOENT) {
1555 /* Avoid suspend failed when usb_kill_urb */
1556 return;
1557 }
1558
1559 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
1560 return;
1561
1562 usb_anchor_urb(urb, &data->isoc_anchor);
1563
1564 err = usb_submit_urb(urb, GFP_ATOMIC);
1565 if (err < 0) {
1566 /* -EPERM: urb is being killed;
1567 * -ENODEV: device got disconnected
1568 */
1569 if (err != -EPERM && err != -ENODEV)
1570 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1571 urb, -err);
1572 usb_unanchor_urb(urb);
1573 }
1574 }
1575
__fill_isoc_descriptor_msbc(struct urb * urb,int len,int mtu,struct btusb_data * data)1576 static inline void __fill_isoc_descriptor_msbc(struct urb *urb, int len,
1577 int mtu, struct btusb_data *data)
1578 {
1579 int i = 0, offset = 0;
1580 unsigned int interval;
1581
1582 BT_DBG("len %d mtu %d", len, mtu);
1583
1584 /* For mSBC ALT 6 settings some chips need to transmit the data
1585 * continuously without the zero length of USB packets.
1586 */
1587 if (test_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags))
1588 goto ignore_usb_alt6_packet_flow;
1589
1590 /* For mSBC ALT 6 setting the host will send the packet at continuous
1591 * flow. As per core spec 5, vol 4, part B, table 2.1. For ALT setting
1592 * 6 the HCI PACKET INTERVAL should be 7.5ms for every usb packets.
1593 * To maintain the rate we send 63bytes of usb packets alternatively for
1594 * 7ms and 8ms to maintain the rate as 7.5ms.
1595 */
1596 if (data->usb_alt6_packet_flow) {
1597 interval = 7;
1598 data->usb_alt6_packet_flow = false;
1599 } else {
1600 interval = 6;
1601 data->usb_alt6_packet_flow = true;
1602 }
1603
1604 for (i = 0; i < interval; i++) {
1605 urb->iso_frame_desc[i].offset = offset;
1606 urb->iso_frame_desc[i].length = offset;
1607 }
1608
1609 ignore_usb_alt6_packet_flow:
1610 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1611 urb->iso_frame_desc[i].offset = offset;
1612 urb->iso_frame_desc[i].length = len;
1613 i++;
1614 }
1615
1616 urb->number_of_packets = i;
1617 }
1618
__fill_isoc_descriptor(struct urb * urb,int len,int mtu)1619 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
1620 {
1621 int i, offset = 0;
1622
1623 BT_DBG("len %d mtu %d", len, mtu);
1624
1625 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
1626 i++, offset += mtu, len -= mtu) {
1627 urb->iso_frame_desc[i].offset = offset;
1628 urb->iso_frame_desc[i].length = mtu;
1629 }
1630
1631 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1632 urb->iso_frame_desc[i].offset = offset;
1633 urb->iso_frame_desc[i].length = len;
1634 i++;
1635 }
1636
1637 urb->number_of_packets = i;
1638 }
1639
btusb_submit_isoc_urb(struct hci_dev * hdev,gfp_t mem_flags)1640 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
1641 {
1642 struct btusb_data *data = hci_get_drvdata(hdev);
1643 struct urb *urb;
1644 unsigned char *buf;
1645 unsigned int pipe;
1646 int err, size;
1647
1648 BT_DBG("%s", hdev->name);
1649
1650 if (!data->isoc_rx_ep)
1651 return -ENODEV;
1652
1653 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
1654 if (!urb)
1655 return -ENOMEM;
1656
1657 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
1658 BTUSB_MAX_ISOC_FRAMES;
1659
1660 buf = kmalloc(size, mem_flags);
1661 if (!buf) {
1662 usb_free_urb(urb);
1663 return -ENOMEM;
1664 }
1665
1666 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
1667
1668 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
1669 hdev, data->isoc_rx_ep->bInterval);
1670
1671 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
1672
1673 __fill_isoc_descriptor(urb, size,
1674 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
1675
1676 usb_anchor_urb(urb, &data->isoc_anchor);
1677
1678 err = usb_submit_urb(urb, mem_flags);
1679 if (err < 0) {
1680 if (err != -EPERM && err != -ENODEV)
1681 bt_dev_err(hdev, "urb %p submission failed (%d)",
1682 urb, -err);
1683 usb_unanchor_urb(urb);
1684 }
1685
1686 usb_free_urb(urb);
1687
1688 return err;
1689 }
1690
btusb_diag_complete(struct urb * urb)1691 static void btusb_diag_complete(struct urb *urb)
1692 {
1693 struct hci_dev *hdev = urb->context;
1694 struct btusb_data *data = hci_get_drvdata(hdev);
1695 int err;
1696
1697 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1698 urb->actual_length);
1699
1700 if (urb->status == 0) {
1701 struct sk_buff *skb;
1702
1703 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC);
1704 if (skb) {
1705 skb_put_data(skb, urb->transfer_buffer,
1706 urb->actual_length);
1707 hci_recv_diag(hdev, skb);
1708 }
1709 } else if (urb->status == -ENOENT) {
1710 /* Avoid suspend failed when usb_kill_urb */
1711 return;
1712 }
1713
1714 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags))
1715 return;
1716
1717 usb_anchor_urb(urb, &data->diag_anchor);
1718 usb_mark_last_busy(data->udev);
1719
1720 err = usb_submit_urb(urb, GFP_ATOMIC);
1721 if (err < 0) {
1722 /* -EPERM: urb is being killed;
1723 * -ENODEV: device got disconnected
1724 */
1725 if (err != -EPERM && err != -ENODEV)
1726 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1727 urb, -err);
1728 usb_unanchor_urb(urb);
1729 }
1730 }
1731
btusb_submit_diag_urb(struct hci_dev * hdev,gfp_t mem_flags)1732 static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags)
1733 {
1734 struct btusb_data *data = hci_get_drvdata(hdev);
1735 struct urb *urb;
1736 unsigned char *buf;
1737 unsigned int pipe;
1738 int err, size = HCI_MAX_FRAME_SIZE;
1739
1740 BT_DBG("%s", hdev->name);
1741
1742 if (!data->diag_rx_ep)
1743 return -ENODEV;
1744
1745 urb = usb_alloc_urb(0, mem_flags);
1746 if (!urb)
1747 return -ENOMEM;
1748
1749 buf = kmalloc(size, mem_flags);
1750 if (!buf) {
1751 usb_free_urb(urb);
1752 return -ENOMEM;
1753 }
1754
1755 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress);
1756
1757 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1758 btusb_diag_complete, hdev);
1759
1760 urb->transfer_flags |= URB_FREE_BUFFER;
1761
1762 usb_mark_last_busy(data->udev);
1763 usb_anchor_urb(urb, &data->diag_anchor);
1764
1765 err = usb_submit_urb(urb, mem_flags);
1766 if (err < 0) {
1767 if (err != -EPERM && err != -ENODEV)
1768 bt_dev_err(hdev, "urb %p submission failed (%d)",
1769 urb, -err);
1770 usb_unanchor_urb(urb);
1771 }
1772
1773 usb_free_urb(urb);
1774
1775 return err;
1776 }
1777
btusb_tx_complete(struct urb * urb)1778 static void btusb_tx_complete(struct urb *urb)
1779 {
1780 struct sk_buff *skb = urb->context;
1781 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1782 struct btusb_data *data = hci_get_drvdata(hdev);
1783 unsigned long flags;
1784
1785 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1786 urb->actual_length);
1787
1788 if (!test_bit(HCI_RUNNING, &hdev->flags))
1789 goto done;
1790
1791 if (!urb->status) {
1792 hdev->stat.byte_tx += urb->transfer_buffer_length;
1793 } else {
1794 if (hci_skb_pkt_type(skb) == HCI_COMMAND_PKT)
1795 hci_cmd_sync_cancel(hdev, -urb->status);
1796 hdev->stat.err_tx++;
1797 }
1798
1799 done:
1800 spin_lock_irqsave(&data->txlock, flags);
1801 data->tx_in_flight--;
1802 spin_unlock_irqrestore(&data->txlock, flags);
1803
1804 kfree(urb->setup_packet);
1805
1806 kfree_skb(skb);
1807 }
1808
btusb_isoc_tx_complete(struct urb * urb)1809 static void btusb_isoc_tx_complete(struct urb *urb)
1810 {
1811 struct sk_buff *skb = urb->context;
1812 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1813
1814 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1815 urb->actual_length);
1816
1817 if (!test_bit(HCI_RUNNING, &hdev->flags))
1818 goto done;
1819
1820 if (!urb->status)
1821 hdev->stat.byte_tx += urb->transfer_buffer_length;
1822 else
1823 hdev->stat.err_tx++;
1824
1825 done:
1826 kfree(urb->setup_packet);
1827
1828 kfree_skb(skb);
1829 }
1830
btusb_open(struct hci_dev * hdev)1831 static int btusb_open(struct hci_dev *hdev)
1832 {
1833 struct btusb_data *data = hci_get_drvdata(hdev);
1834 int err;
1835
1836 BT_DBG("%s", hdev->name);
1837
1838 err = usb_autopm_get_interface(data->intf);
1839 if (err < 0)
1840 return err;
1841
1842 /* Patching USB firmware files prior to starting any URBs of HCI path
1843 * It is more safe to use USB bulk channel for downloading USB patch
1844 */
1845 if (data->setup_on_usb) {
1846 err = data->setup_on_usb(hdev);
1847 if (err < 0)
1848 goto setup_fail;
1849 }
1850
1851 data->intf->needs_remote_wakeup = 1;
1852
1853 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
1854 goto done;
1855
1856 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
1857 if (err < 0)
1858 goto failed;
1859
1860 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1861 if (err < 0) {
1862 usb_kill_anchored_urbs(&data->intr_anchor);
1863 goto failed;
1864 }
1865
1866 set_bit(BTUSB_BULK_RUNNING, &data->flags);
1867 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1868
1869 if (data->diag) {
1870 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL))
1871 set_bit(BTUSB_DIAG_RUNNING, &data->flags);
1872 }
1873
1874 done:
1875 usb_autopm_put_interface(data->intf);
1876 return 0;
1877
1878 failed:
1879 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1880 setup_fail:
1881 usb_autopm_put_interface(data->intf);
1882 return err;
1883 }
1884
btusb_stop_traffic(struct btusb_data * data)1885 static void btusb_stop_traffic(struct btusb_data *data)
1886 {
1887 usb_kill_anchored_urbs(&data->intr_anchor);
1888 usb_kill_anchored_urbs(&data->bulk_anchor);
1889 usb_kill_anchored_urbs(&data->isoc_anchor);
1890 usb_kill_anchored_urbs(&data->diag_anchor);
1891 usb_kill_anchored_urbs(&data->ctrl_anchor);
1892 }
1893
btusb_close(struct hci_dev * hdev)1894 static int btusb_close(struct hci_dev *hdev)
1895 {
1896 struct btusb_data *data = hci_get_drvdata(hdev);
1897 int err;
1898
1899 BT_DBG("%s", hdev->name);
1900
1901 cancel_delayed_work(&data->rx_work);
1902 cancel_work_sync(&data->work);
1903 cancel_work_sync(&data->waker);
1904
1905 skb_queue_purge(&data->acl_q);
1906
1907 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1908 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1909 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1910 clear_bit(BTUSB_DIAG_RUNNING, &data->flags);
1911
1912 btusb_stop_traffic(data);
1913 btusb_free_frags(data);
1914
1915 err = usb_autopm_get_interface(data->intf);
1916 if (err < 0)
1917 goto failed;
1918
1919 data->intf->needs_remote_wakeup = 0;
1920
1921 /* Enable remote wake up for auto-suspend */
1922 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags))
1923 data->intf->needs_remote_wakeup = 1;
1924
1925 usb_autopm_put_interface(data->intf);
1926
1927 failed:
1928 usb_scuttle_anchored_urbs(&data->deferred);
1929 return 0;
1930 }
1931
btusb_flush(struct hci_dev * hdev)1932 static int btusb_flush(struct hci_dev *hdev)
1933 {
1934 struct btusb_data *data = hci_get_drvdata(hdev);
1935
1936 BT_DBG("%s", hdev->name);
1937
1938 cancel_delayed_work(&data->rx_work);
1939
1940 skb_queue_purge(&data->acl_q);
1941
1942 usb_kill_anchored_urbs(&data->tx_anchor);
1943 btusb_free_frags(data);
1944
1945 return 0;
1946 }
1947
alloc_ctrl_urb(struct hci_dev * hdev,struct sk_buff * skb)1948 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
1949 {
1950 struct btusb_data *data = hci_get_drvdata(hdev);
1951 struct usb_ctrlrequest *dr;
1952 struct urb *urb;
1953 unsigned int pipe;
1954
1955 urb = usb_alloc_urb(0, GFP_KERNEL);
1956 if (!urb)
1957 return ERR_PTR(-ENOMEM);
1958
1959 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
1960 if (!dr) {
1961 usb_free_urb(urb);
1962 return ERR_PTR(-ENOMEM);
1963 }
1964
1965 dr->bRequestType = data->cmdreq_type;
1966 dr->bRequest = data->cmdreq;
1967 dr->wIndex = 0;
1968 dr->wValue = 0;
1969 dr->wLength = __cpu_to_le16(skb->len);
1970
1971 pipe = usb_sndctrlpipe(data->udev, 0x00);
1972
1973 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
1974 skb->data, skb->len, btusb_tx_complete, skb);
1975
1976 skb->dev = (void *)hdev;
1977
1978 return urb;
1979 }
1980
alloc_bulk_urb(struct hci_dev * hdev,struct sk_buff * skb)1981 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
1982 {
1983 struct btusb_data *data = hci_get_drvdata(hdev);
1984 struct urb *urb;
1985 unsigned int pipe;
1986
1987 if (!data->bulk_tx_ep)
1988 return ERR_PTR(-ENODEV);
1989
1990 urb = usb_alloc_urb(0, GFP_KERNEL);
1991 if (!urb)
1992 return ERR_PTR(-ENOMEM);
1993
1994 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
1995
1996 usb_fill_bulk_urb(urb, data->udev, pipe,
1997 skb->data, skb->len, btusb_tx_complete, skb);
1998
1999 skb->dev = (void *)hdev;
2000
2001 return urb;
2002 }
2003
alloc_isoc_urb(struct hci_dev * hdev,struct sk_buff * skb)2004 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
2005 {
2006 struct btusb_data *data = hci_get_drvdata(hdev);
2007 struct urb *urb;
2008 unsigned int pipe;
2009
2010 if (!data->isoc_tx_ep)
2011 return ERR_PTR(-ENODEV);
2012
2013 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
2014 if (!urb)
2015 return ERR_PTR(-ENOMEM);
2016
2017 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
2018
2019 usb_fill_int_urb(urb, data->udev, pipe,
2020 skb->data, skb->len, btusb_isoc_tx_complete,
2021 skb, data->isoc_tx_ep->bInterval);
2022
2023 urb->transfer_flags = URB_ISO_ASAP;
2024
2025 if (data->isoc_altsetting == 6)
2026 __fill_isoc_descriptor_msbc(urb, skb->len,
2027 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize),
2028 data);
2029 else
2030 __fill_isoc_descriptor(urb, skb->len,
2031 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
2032 skb->dev = (void *)hdev;
2033
2034 return urb;
2035 }
2036
submit_tx_urb(struct hci_dev * hdev,struct urb * urb)2037 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
2038 {
2039 struct btusb_data *data = hci_get_drvdata(hdev);
2040 int err;
2041
2042 usb_anchor_urb(urb, &data->tx_anchor);
2043
2044 err = usb_submit_urb(urb, GFP_KERNEL);
2045 if (err < 0) {
2046 if (err != -EPERM && err != -ENODEV)
2047 bt_dev_err(hdev, "urb %p submission failed (%d)",
2048 urb, -err);
2049 kfree(urb->setup_packet);
2050 usb_unanchor_urb(urb);
2051 } else {
2052 usb_mark_last_busy(data->udev);
2053 }
2054
2055 usb_free_urb(urb);
2056 return err;
2057 }
2058
submit_or_queue_tx_urb(struct hci_dev * hdev,struct urb * urb)2059 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
2060 {
2061 struct btusb_data *data = hci_get_drvdata(hdev);
2062 unsigned long flags;
2063 bool suspending;
2064
2065 spin_lock_irqsave(&data->txlock, flags);
2066 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
2067 if (!suspending)
2068 data->tx_in_flight++;
2069 spin_unlock_irqrestore(&data->txlock, flags);
2070
2071 if (!suspending)
2072 return submit_tx_urb(hdev, urb);
2073
2074 usb_anchor_urb(urb, &data->deferred);
2075 schedule_work(&data->waker);
2076
2077 usb_free_urb(urb);
2078 return 0;
2079 }
2080
btusb_send_frame(struct hci_dev * hdev,struct sk_buff * skb)2081 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
2082 {
2083 struct urb *urb;
2084
2085 BT_DBG("%s", hdev->name);
2086
2087 switch (hci_skb_pkt_type(skb)) {
2088 case HCI_COMMAND_PKT:
2089 urb = alloc_ctrl_urb(hdev, skb);
2090 if (IS_ERR(urb))
2091 return PTR_ERR(urb);
2092
2093 hdev->stat.cmd_tx++;
2094 return submit_or_queue_tx_urb(hdev, urb);
2095
2096 case HCI_ACLDATA_PKT:
2097 urb = alloc_bulk_urb(hdev, skb);
2098 if (IS_ERR(urb))
2099 return PTR_ERR(urb);
2100
2101 hdev->stat.acl_tx++;
2102 return submit_or_queue_tx_urb(hdev, urb);
2103
2104 case HCI_SCODATA_PKT:
2105 if (!hci_dev_test_flag(hdev, HCI_USER_CHANNEL) &&
2106 hci_conn_num(hdev, SCO_LINK) < 1)
2107 return -ENODEV;
2108
2109 urb = alloc_isoc_urb(hdev, skb);
2110 if (IS_ERR(urb))
2111 return PTR_ERR(urb);
2112
2113 hdev->stat.sco_tx++;
2114 return submit_tx_urb(hdev, urb);
2115
2116 case HCI_ISODATA_PKT:
2117 urb = alloc_bulk_urb(hdev, skb);
2118 if (IS_ERR(urb))
2119 return PTR_ERR(urb);
2120
2121 return submit_or_queue_tx_urb(hdev, urb);
2122 }
2123
2124 return -EILSEQ;
2125 }
2126
btusb_notify(struct hci_dev * hdev,unsigned int evt)2127 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
2128 {
2129 struct btusb_data *data = hci_get_drvdata(hdev);
2130
2131 BT_DBG("%s evt %d", hdev->name, evt);
2132
2133 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
2134 data->sco_num = hci_conn_num(hdev, SCO_LINK);
2135 data->air_mode = evt;
2136 schedule_work(&data->work);
2137 }
2138 }
2139
__set_isoc_interface(struct hci_dev * hdev,int altsetting)2140 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
2141 {
2142 struct btusb_data *data = hci_get_drvdata(hdev);
2143 struct usb_interface *intf = data->isoc;
2144 struct usb_endpoint_descriptor *ep_desc;
2145 int i, err;
2146
2147 if (!data->isoc)
2148 return -ENODEV;
2149
2150 err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting);
2151 if (err < 0) {
2152 bt_dev_err(hdev, "setting interface failed (%d)", -err);
2153 return err;
2154 }
2155
2156 data->isoc_altsetting = altsetting;
2157
2158 data->isoc_tx_ep = NULL;
2159 data->isoc_rx_ep = NULL;
2160
2161 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2162 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2163
2164 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
2165 data->isoc_tx_ep = ep_desc;
2166 continue;
2167 }
2168
2169 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
2170 data->isoc_rx_ep = ep_desc;
2171 continue;
2172 }
2173 }
2174
2175 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
2176 bt_dev_err(hdev, "invalid SCO descriptors");
2177 return -ENODEV;
2178 }
2179
2180 return 0;
2181 }
2182
btusb_switch_alt_setting(struct hci_dev * hdev,int new_alts)2183 static int btusb_switch_alt_setting(struct hci_dev *hdev, int new_alts)
2184 {
2185 struct btusb_data *data = hci_get_drvdata(hdev);
2186 int err;
2187
2188 if (data->isoc_altsetting != new_alts) {
2189 unsigned long flags;
2190
2191 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2192 usb_kill_anchored_urbs(&data->isoc_anchor);
2193
2194 /* When isochronous alternate setting needs to be
2195 * changed, because SCO connection has been added
2196 * or removed, a packet fragment may be left in the
2197 * reassembling state. This could lead to wrongly
2198 * assembled fragments.
2199 *
2200 * Clear outstanding fragment when selecting a new
2201 * alternate setting.
2202 */
2203 spin_lock_irqsave(&data->rxlock, flags);
2204 dev_kfree_skb_irq(data->sco_skb);
2205 data->sco_skb = NULL;
2206 spin_unlock_irqrestore(&data->rxlock, flags);
2207
2208 err = __set_isoc_interface(hdev, new_alts);
2209 if (err < 0)
2210 return err;
2211 }
2212
2213 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2214 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
2215 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2216 else
2217 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
2218 }
2219
2220 return 0;
2221 }
2222
btusb_find_altsetting(struct btusb_data * data,int alt)2223 static struct usb_host_interface *btusb_find_altsetting(struct btusb_data *data,
2224 int alt)
2225 {
2226 struct usb_interface *intf = data->isoc;
2227 int i;
2228
2229 BT_DBG("Looking for Alt no :%d", alt);
2230
2231 if (!intf)
2232 return NULL;
2233
2234 for (i = 0; i < intf->num_altsetting; i++) {
2235 if (intf->altsetting[i].desc.bAlternateSetting == alt)
2236 return &intf->altsetting[i];
2237 }
2238
2239 return NULL;
2240 }
2241
btusb_work(struct work_struct * work)2242 static void btusb_work(struct work_struct *work)
2243 {
2244 struct btusb_data *data = container_of(work, struct btusb_data, work);
2245 struct hci_dev *hdev = data->hdev;
2246 int new_alts = 0;
2247 int err;
2248
2249 if (data->sco_num > 0) {
2250 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
2251 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
2252 if (err < 0) {
2253 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2254 usb_kill_anchored_urbs(&data->isoc_anchor);
2255 return;
2256 }
2257
2258 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
2259 }
2260
2261 if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_CVSD) {
2262 if (hdev->voice_setting & 0x0020) {
2263 static const int alts[3] = { 2, 4, 5 };
2264
2265 new_alts = alts[data->sco_num - 1];
2266 } else {
2267 new_alts = data->sco_num;
2268 }
2269 } else if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_TRANSP) {
2270 /* Bluetooth USB spec recommends alt 6 (63 bytes), but
2271 * many adapters do not support it. Alt 1 appears to
2272 * work for all adapters that do not have alt 6, and
2273 * which work with WBS at all. Some devices prefer
2274 * alt 3 (HCI payload >= 60 Bytes let air packet
2275 * data satisfy 60 bytes), requiring
2276 * MTU >= 3 (packets) * 25 (size) - 3 (headers) = 72
2277 * see also Core spec 5, vol 4, B 2.1.1 & Table 2.1.
2278 */
2279 if (btusb_find_altsetting(data, 6))
2280 new_alts = 6;
2281 else if (btusb_find_altsetting(data, 3) &&
2282 hdev->sco_mtu >= 72 &&
2283 test_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags))
2284 new_alts = 3;
2285 else
2286 new_alts = 1;
2287 }
2288
2289 if (btusb_switch_alt_setting(hdev, new_alts) < 0)
2290 bt_dev_err(hdev, "set USB alt:(%d) failed!", new_alts);
2291 } else {
2292 usb_kill_anchored_urbs(&data->isoc_anchor);
2293
2294 if (test_and_clear_bit(BTUSB_ISOC_RUNNING, &data->flags))
2295 __set_isoc_interface(hdev, 0);
2296
2297 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
2298 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
2299 }
2300 }
2301
btusb_waker(struct work_struct * work)2302 static void btusb_waker(struct work_struct *work)
2303 {
2304 struct btusb_data *data = container_of(work, struct btusb_data, waker);
2305 int err;
2306
2307 err = usb_autopm_get_interface(data->intf);
2308 if (err < 0)
2309 return;
2310
2311 usb_autopm_put_interface(data->intf);
2312 }
2313
btusb_rx_work(struct work_struct * work)2314 static void btusb_rx_work(struct work_struct *work)
2315 {
2316 struct btusb_data *data = container_of(work, struct btusb_data,
2317 rx_work.work);
2318 struct sk_buff *skb;
2319
2320 /* Dequeue ACL data received during the interval */
2321 while ((skb = skb_dequeue(&data->acl_q)))
2322 data->recv_acl(data->hdev, skb);
2323 }
2324
btusb_setup_bcm92035(struct hci_dev * hdev)2325 static int btusb_setup_bcm92035(struct hci_dev *hdev)
2326 {
2327 struct sk_buff *skb;
2328 u8 val = 0x00;
2329
2330 BT_DBG("%s", hdev->name);
2331
2332 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
2333 if (IS_ERR(skb))
2334 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb));
2335 else
2336 kfree_skb(skb);
2337
2338 return 0;
2339 }
2340
btusb_setup_csr(struct hci_dev * hdev)2341 static int btusb_setup_csr(struct hci_dev *hdev)
2342 {
2343 struct btusb_data *data = hci_get_drvdata(hdev);
2344 u16 bcdDevice = le16_to_cpu(data->udev->descriptor.bcdDevice);
2345 struct hci_rp_read_local_version *rp;
2346 struct sk_buff *skb;
2347 bool is_fake = false;
2348 int ret;
2349
2350 BT_DBG("%s", hdev->name);
2351
2352 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
2353 HCI_INIT_TIMEOUT);
2354 if (IS_ERR(skb)) {
2355 int err = PTR_ERR(skb);
2356 bt_dev_err(hdev, "CSR: Local version failed (%d)", err);
2357 return err;
2358 }
2359
2360 rp = skb_pull_data(skb, sizeof(*rp));
2361 if (!rp) {
2362 bt_dev_err(hdev, "CSR: Local version length mismatch");
2363 kfree_skb(skb);
2364 return -EIO;
2365 }
2366
2367 bt_dev_info(hdev, "CSR: Setting up dongle with HCI ver=%u rev=%04x",
2368 rp->hci_ver, le16_to_cpu(rp->hci_rev));
2369
2370 bt_dev_info(hdev, "LMP ver=%u subver=%04x; manufacturer=%u",
2371 rp->lmp_ver, le16_to_cpu(rp->lmp_subver),
2372 le16_to_cpu(rp->manufacturer));
2373
2374 /* Detect a wide host of Chinese controllers that aren't CSR.
2375 *
2376 * Known fake bcdDevices: 0x0100, 0x0134, 0x1915, 0x2520, 0x7558, 0x8891
2377 *
2378 * The main thing they have in common is that these are really popular low-cost
2379 * options that support newer Bluetooth versions but rely on heavy VID/PID
2380 * squatting of this poor old Bluetooth 1.1 device. Even sold as such.
2381 *
2382 * We detect actual CSR devices by checking that the HCI manufacturer code
2383 * is Cambridge Silicon Radio (10) and ensuring that LMP sub-version and
2384 * HCI rev values always match. As they both store the firmware number.
2385 */
2386 if (le16_to_cpu(rp->manufacturer) != 10 ||
2387 le16_to_cpu(rp->hci_rev) != le16_to_cpu(rp->lmp_subver))
2388 is_fake = true;
2389
2390 /* Known legit CSR firmware build numbers and their supported BT versions:
2391 * - 1.1 (0x1) -> 0x0073, 0x020d, 0x033c, 0x034e
2392 * - 1.2 (0x2) -> 0x04d9, 0x0529
2393 * - 2.0 (0x3) -> 0x07a6, 0x07ad, 0x0c5c
2394 * - 2.1 (0x4) -> 0x149c, 0x1735, 0x1899 (0x1899 is a BlueCore4-External)
2395 * - 4.0 (0x6) -> 0x1d86, 0x2031, 0x22bb
2396 *
2397 * e.g. Real CSR dongles with LMP subversion 0x73 are old enough that
2398 * support BT 1.1 only; so it's a dead giveaway when some
2399 * third-party BT 4.0 dongle reuses it.
2400 */
2401 else if (le16_to_cpu(rp->lmp_subver) <= 0x034e &&
2402 rp->hci_ver > BLUETOOTH_VER_1_1)
2403 is_fake = true;
2404
2405 else if (le16_to_cpu(rp->lmp_subver) <= 0x0529 &&
2406 rp->hci_ver > BLUETOOTH_VER_1_2)
2407 is_fake = true;
2408
2409 else if (le16_to_cpu(rp->lmp_subver) <= 0x0c5c &&
2410 rp->hci_ver > BLUETOOTH_VER_2_0)
2411 is_fake = true;
2412
2413 else if (le16_to_cpu(rp->lmp_subver) <= 0x1899 &&
2414 rp->hci_ver > BLUETOOTH_VER_2_1)
2415 is_fake = true;
2416
2417 else if (le16_to_cpu(rp->lmp_subver) <= 0x22bb &&
2418 rp->hci_ver > BLUETOOTH_VER_4_0)
2419 is_fake = true;
2420
2421 /* Other clones which beat all the above checks */
2422 else if (bcdDevice == 0x0134 &&
2423 le16_to_cpu(rp->lmp_subver) == 0x0c5c &&
2424 rp->hci_ver == BLUETOOTH_VER_2_0)
2425 is_fake = true;
2426
2427 if (is_fake) {
2428 bt_dev_warn(hdev, "CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once...");
2429
2430 /* Generally these clones have big discrepancies between
2431 * advertised features and what's actually supported.
2432 * Probably will need to be expanded in the future;
2433 * without these the controller will lock up.
2434 */
2435 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
2436 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks);
2437 set_bit(HCI_QUIRK_BROKEN_FILTER_CLEAR_ALL, &hdev->quirks);
2438 set_bit(HCI_QUIRK_NO_SUSPEND_NOTIFIER, &hdev->quirks);
2439
2440 /* Clear the reset quirk since this is not an actual
2441 * early Bluetooth 1.1 device from CSR.
2442 */
2443 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
2444 clear_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
2445
2446 /*
2447 * Special workaround for these BT 4.0 chip clones, and potentially more:
2448 *
2449 * - 0x0134: a Barrot 8041a02 (HCI rev: 0x0810 sub: 0x1012)
2450 * - 0x7558: IC markings FR3191AHAL 749H15143 (HCI rev/sub-version: 0x0709)
2451 *
2452 * These controllers are really messed-up.
2453 *
2454 * 1. Their bulk RX endpoint will never report any data unless
2455 * the device was suspended at least once (yes, really).
2456 * 2. They will not wakeup when autosuspended and receiving data
2457 * on their bulk RX endpoint from e.g. a keyboard or mouse
2458 * (IOW remote-wakeup support is broken for the bulk endpoint).
2459 *
2460 * To fix 1. enable runtime-suspend, force-suspend the
2461 * HCI and then wake-it up by disabling runtime-suspend.
2462 *
2463 * To fix 2. clear the HCI's can_wake flag, this way the HCI
2464 * will still be autosuspended when it is not open.
2465 *
2466 * --
2467 *
2468 * Because these are widespread problems we prefer generic solutions; so
2469 * apply this initialization quirk to every controller that gets here,
2470 * it should be harmless. The alternative is to not work at all.
2471 */
2472 pm_runtime_allow(&data->udev->dev);
2473
2474 ret = pm_runtime_suspend(&data->udev->dev);
2475 if (ret >= 0)
2476 msleep(200);
2477 else
2478 bt_dev_warn(hdev, "CSR: Couldn't suspend the device for our Barrot 8041a02 receive-issue workaround");
2479
2480 pm_runtime_forbid(&data->udev->dev);
2481
2482 device_set_wakeup_capable(&data->udev->dev, false);
2483
2484 /* Re-enable autosuspend if this was requested */
2485 if (enable_autosuspend)
2486 usb_enable_autosuspend(data->udev);
2487 }
2488
2489 kfree_skb(skb);
2490
2491 return 0;
2492 }
2493
inject_cmd_complete(struct hci_dev * hdev,__u16 opcode)2494 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
2495 {
2496 struct sk_buff *skb;
2497 struct hci_event_hdr *hdr;
2498 struct hci_ev_cmd_complete *evt;
2499
2500 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL);
2501 if (!skb)
2502 return -ENOMEM;
2503
2504 hdr = skb_put(skb, sizeof(*hdr));
2505 hdr->evt = HCI_EV_CMD_COMPLETE;
2506 hdr->plen = sizeof(*evt) + 1;
2507
2508 evt = skb_put(skb, sizeof(*evt));
2509 evt->ncmd = 0x01;
2510 evt->opcode = cpu_to_le16(opcode);
2511
2512 skb_put_u8(skb, 0x00);
2513
2514 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
2515
2516 return hci_recv_frame(hdev, skb);
2517 }
2518
btusb_recv_bulk_intel(struct btusb_data * data,void * buffer,int count)2519 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
2520 int count)
2521 {
2522 struct hci_dev *hdev = data->hdev;
2523
2524 /* When the device is in bootloader mode, then it can send
2525 * events via the bulk endpoint. These events are treated the
2526 * same way as the ones received from the interrupt endpoint.
2527 */
2528 if (btintel_test_flag(hdev, INTEL_BOOTLOADER))
2529 return btusb_recv_intr(data, buffer, count);
2530
2531 return btusb_recv_bulk(data, buffer, count);
2532 }
2533
btusb_send_frame_intel(struct hci_dev * hdev,struct sk_buff * skb)2534 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
2535 {
2536 struct urb *urb;
2537
2538 BT_DBG("%s", hdev->name);
2539
2540 switch (hci_skb_pkt_type(skb)) {
2541 case HCI_COMMAND_PKT:
2542 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) {
2543 struct hci_command_hdr *cmd = (void *)skb->data;
2544 __u16 opcode = le16_to_cpu(cmd->opcode);
2545
2546 /* When in bootloader mode and the command 0xfc09
2547 * is received, it needs to be send down the
2548 * bulk endpoint. So allocate a bulk URB instead.
2549 */
2550 if (opcode == 0xfc09)
2551 urb = alloc_bulk_urb(hdev, skb);
2552 else
2553 urb = alloc_ctrl_urb(hdev, skb);
2554
2555 /* When the 0xfc01 command is issued to boot into
2556 * the operational firmware, it will actually not
2557 * send a command complete event. To keep the flow
2558 * control working inject that event here.
2559 */
2560 if (opcode == 0xfc01)
2561 inject_cmd_complete(hdev, opcode);
2562 } else {
2563 urb = alloc_ctrl_urb(hdev, skb);
2564 }
2565 if (IS_ERR(urb))
2566 return PTR_ERR(urb);
2567
2568 hdev->stat.cmd_tx++;
2569 return submit_or_queue_tx_urb(hdev, urb);
2570
2571 case HCI_ACLDATA_PKT:
2572 urb = alloc_bulk_urb(hdev, skb);
2573 if (IS_ERR(urb))
2574 return PTR_ERR(urb);
2575
2576 hdev->stat.acl_tx++;
2577 return submit_or_queue_tx_urb(hdev, urb);
2578
2579 case HCI_SCODATA_PKT:
2580 if (!hci_dev_test_flag(hdev, HCI_USER_CHANNEL) &&
2581 hci_conn_num(hdev, SCO_LINK) < 1)
2582 return -ENODEV;
2583
2584 urb = alloc_isoc_urb(hdev, skb);
2585 if (IS_ERR(urb))
2586 return PTR_ERR(urb);
2587
2588 hdev->stat.sco_tx++;
2589 return submit_tx_urb(hdev, urb);
2590
2591 case HCI_ISODATA_PKT:
2592 urb = alloc_bulk_urb(hdev, skb);
2593 if (IS_ERR(urb))
2594 return PTR_ERR(urb);
2595
2596 return submit_or_queue_tx_urb(hdev, urb);
2597 }
2598
2599 return -EILSEQ;
2600 }
2601
btusb_setup_realtek(struct hci_dev * hdev)2602 static int btusb_setup_realtek(struct hci_dev *hdev)
2603 {
2604 struct btusb_data *data = hci_get_drvdata(hdev);
2605 int ret;
2606
2607 ret = btrtl_setup_realtek(hdev);
2608
2609 if (btrealtek_test_flag(data->hdev, REALTEK_ALT6_CONTINUOUS_TX_CHIP))
2610 set_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags);
2611
2612 return ret;
2613 }
2614
btusb_recv_event_realtek(struct hci_dev * hdev,struct sk_buff * skb)2615 static int btusb_recv_event_realtek(struct hci_dev *hdev, struct sk_buff *skb)
2616 {
2617 if (skb->data[0] == HCI_VENDOR_PKT && skb->data[2] == RTK_SUB_EVENT_CODE_COREDUMP) {
2618 struct rtk_dev_coredump_hdr hdr = {
2619 .code = RTK_DEVCOREDUMP_CODE_MEMDUMP,
2620 };
2621
2622 bt_dev_dbg(hdev, "RTL: received coredump vendor evt, len %u",
2623 skb->len);
2624
2625 btusb_rtl_alloc_devcoredump(hdev, &hdr, skb->data, skb->len);
2626 kfree_skb(skb);
2627
2628 return 0;
2629 }
2630
2631 return hci_recv_frame(hdev, skb);
2632 }
2633
btusb_mtk_claim_iso_intf(struct btusb_data * data)2634 static void btusb_mtk_claim_iso_intf(struct btusb_data *data)
2635 {
2636 struct btmtk_data *btmtk_data = hci_get_priv(data->hdev);
2637 int err;
2638
2639 /*
2640 * The function usb_driver_claim_interface() is documented to need
2641 * locks held if it's not called from a probe routine. The code here
2642 * is called from the hci_power_on workqueue, so grab the lock.
2643 */
2644 device_lock(&btmtk_data->isopkt_intf->dev);
2645 err = usb_driver_claim_interface(&btusb_driver,
2646 btmtk_data->isopkt_intf, data);
2647 device_unlock(&btmtk_data->isopkt_intf->dev);
2648 if (err < 0) {
2649 btmtk_data->isopkt_intf = NULL;
2650 bt_dev_err(data->hdev, "Failed to claim iso interface");
2651 return;
2652 }
2653
2654 set_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags);
2655 init_usb_anchor(&btmtk_data->isopkt_anchor);
2656 }
2657
btusb_mtk_release_iso_intf(struct hci_dev * hdev)2658 static void btusb_mtk_release_iso_intf(struct hci_dev *hdev)
2659 {
2660 struct btmtk_data *btmtk_data = hci_get_priv(hdev);
2661
2662 if (test_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags)) {
2663 usb_kill_anchored_urbs(&btmtk_data->isopkt_anchor);
2664 clear_bit(BTMTK_ISOPKT_RUNNING, &btmtk_data->flags);
2665
2666 dev_kfree_skb_irq(btmtk_data->isopkt_skb);
2667 btmtk_data->isopkt_skb = NULL;
2668 usb_set_intfdata(btmtk_data->isopkt_intf, NULL);
2669 usb_driver_release_interface(&btusb_driver,
2670 btmtk_data->isopkt_intf);
2671 }
2672
2673 clear_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags);
2674 }
2675
btusb_mtk_disconnect(struct hci_dev * hdev)2676 static int btusb_mtk_disconnect(struct hci_dev *hdev)
2677 {
2678 /* This function describes the specific additional steps taken by MediaTek
2679 * when Bluetooth usb driver's resume function is called.
2680 */
2681 btusb_mtk_release_iso_intf(hdev);
2682
2683 return 0;
2684 }
2685
btusb_mtk_reset(struct hci_dev * hdev,void * rst_data)2686 static int btusb_mtk_reset(struct hci_dev *hdev, void *rst_data)
2687 {
2688 struct btusb_data *data = hci_get_drvdata(hdev);
2689 struct btmtk_data *btmtk_data = hci_get_priv(hdev);
2690 int err;
2691
2692 /* It's MediaTek specific bluetooth reset mechanism via USB */
2693 if (test_and_set_bit(BTMTK_HW_RESET_ACTIVE, &btmtk_data->flags)) {
2694 bt_dev_err(hdev, "last reset failed? Not resetting again");
2695 return -EBUSY;
2696 }
2697
2698 err = usb_autopm_get_interface(data->intf);
2699 if (err < 0)
2700 return err;
2701
2702 /* Release MediaTek ISO data interface */
2703 btusb_mtk_release_iso_intf(hdev);
2704
2705 btusb_stop_traffic(data);
2706 usb_kill_anchored_urbs(&data->tx_anchor);
2707
2708 err = btmtk_usb_subsys_reset(hdev, btmtk_data->dev_id);
2709
2710 usb_queue_reset_device(data->intf);
2711 clear_bit(BTMTK_HW_RESET_ACTIVE, &btmtk_data->flags);
2712
2713 return err;
2714 }
2715
btusb_send_frame_mtk(struct hci_dev * hdev,struct sk_buff * skb)2716 static int btusb_send_frame_mtk(struct hci_dev *hdev, struct sk_buff *skb)
2717 {
2718 struct urb *urb;
2719
2720 BT_DBG("%s", hdev->name);
2721
2722 if (hci_skb_pkt_type(skb) == HCI_ISODATA_PKT) {
2723 urb = alloc_mtk_intr_urb(hdev, skb, btusb_tx_complete);
2724 if (IS_ERR(urb))
2725 return PTR_ERR(urb);
2726
2727 return submit_or_queue_tx_urb(hdev, urb);
2728 } else {
2729 return btusb_send_frame(hdev, skb);
2730 }
2731 }
2732
btusb_mtk_setup(struct hci_dev * hdev)2733 static int btusb_mtk_setup(struct hci_dev *hdev)
2734 {
2735 struct btusb_data *data = hci_get_drvdata(hdev);
2736 struct btmtk_data *btmtk_data = hci_get_priv(hdev);
2737
2738 /* MediaTek WMT vendor cmd requiring below USB resources to
2739 * complete the handshake.
2740 */
2741 btmtk_data->drv_name = btusb_driver.name;
2742 btmtk_data->intf = data->intf;
2743 btmtk_data->udev = data->udev;
2744 btmtk_data->ctrl_anchor = &data->ctrl_anchor;
2745 btmtk_data->reset_sync = btusb_mtk_reset;
2746
2747 /* Claim ISO data interface and endpoint */
2748 if (!test_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags)) {
2749 btmtk_data->isopkt_intf = usb_ifnum_to_if(data->udev, MTK_ISO_IFNUM);
2750 btusb_mtk_claim_iso_intf(data);
2751 }
2752
2753 return btmtk_usb_setup(hdev);
2754 }
2755
btusb_mtk_shutdown(struct hci_dev * hdev)2756 static int btusb_mtk_shutdown(struct hci_dev *hdev)
2757 {
2758 int ret;
2759
2760 ret = btmtk_usb_shutdown(hdev);
2761
2762 /* Release MediaTek iso interface after shutdown */
2763 btusb_mtk_release_iso_intf(hdev);
2764
2765 return ret;
2766 }
2767
2768 #ifdef CONFIG_PM
2769 /* Configure an out-of-band gpio as wake-up pin, if specified in device tree */
marvell_config_oob_wake(struct hci_dev * hdev)2770 static int marvell_config_oob_wake(struct hci_dev *hdev)
2771 {
2772 struct sk_buff *skb;
2773 struct btusb_data *data = hci_get_drvdata(hdev);
2774 struct device *dev = &data->udev->dev;
2775 u16 pin, gap, opcode;
2776 int ret;
2777 u8 cmd[5];
2778
2779 /* Move on if no wakeup pin specified */
2780 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) ||
2781 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap))
2782 return 0;
2783
2784 /* Vendor specific command to configure a GPIO as wake-up pin */
2785 opcode = hci_opcode_pack(0x3F, 0x59);
2786 cmd[0] = opcode & 0xFF;
2787 cmd[1] = opcode >> 8;
2788 cmd[2] = 2; /* length of parameters that follow */
2789 cmd[3] = pin;
2790 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */
2791
2792 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
2793 if (!skb) {
2794 bt_dev_err(hdev, "%s: No memory", __func__);
2795 return -ENOMEM;
2796 }
2797
2798 skb_put_data(skb, cmd, sizeof(cmd));
2799 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT;
2800
2801 ret = btusb_send_frame(hdev, skb);
2802 if (ret) {
2803 bt_dev_err(hdev, "%s: configuration failed", __func__);
2804 kfree_skb(skb);
2805 return ret;
2806 }
2807
2808 return 0;
2809 }
2810 #endif
2811
btusb_set_bdaddr_marvell(struct hci_dev * hdev,const bdaddr_t * bdaddr)2812 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
2813 const bdaddr_t *bdaddr)
2814 {
2815 struct sk_buff *skb;
2816 u8 buf[8];
2817 long ret;
2818
2819 buf[0] = 0xfe;
2820 buf[1] = sizeof(bdaddr_t);
2821 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
2822
2823 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2824 if (IS_ERR(skb)) {
2825 ret = PTR_ERR(skb);
2826 bt_dev_err(hdev, "changing Marvell device address failed (%ld)",
2827 ret);
2828 return ret;
2829 }
2830 kfree_skb(skb);
2831
2832 return 0;
2833 }
2834
btusb_set_bdaddr_ath3012(struct hci_dev * hdev,const bdaddr_t * bdaddr)2835 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
2836 const bdaddr_t *bdaddr)
2837 {
2838 struct sk_buff *skb;
2839 u8 buf[10];
2840 long ret;
2841
2842 buf[0] = 0x01;
2843 buf[1] = 0x01;
2844 buf[2] = 0x00;
2845 buf[3] = sizeof(bdaddr_t);
2846 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
2847
2848 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2849 if (IS_ERR(skb)) {
2850 ret = PTR_ERR(skb);
2851 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
2852 return ret;
2853 }
2854 kfree_skb(skb);
2855
2856 return 0;
2857 }
2858
btusb_set_bdaddr_wcn6855(struct hci_dev * hdev,const bdaddr_t * bdaddr)2859 static int btusb_set_bdaddr_wcn6855(struct hci_dev *hdev,
2860 const bdaddr_t *bdaddr)
2861 {
2862 struct sk_buff *skb;
2863 u8 buf[6];
2864 long ret;
2865
2866 memcpy(buf, bdaddr, sizeof(bdaddr_t));
2867
2868 skb = __hci_cmd_sync_ev(hdev, 0xfc14, sizeof(buf), buf,
2869 HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT);
2870 if (IS_ERR(skb)) {
2871 ret = PTR_ERR(skb);
2872 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
2873 return ret;
2874 }
2875 kfree_skb(skb);
2876
2877 return 0;
2878 }
2879
2880 #define QCA_MEMDUMP_ACL_HANDLE 0x2EDD
2881 #define QCA_MEMDUMP_SIZE_MAX 0x100000
2882 #define QCA_MEMDUMP_VSE_CLASS 0x01
2883 #define QCA_MEMDUMP_MSG_TYPE 0x08
2884 #define QCA_MEMDUMP_PKT_SIZE 248
2885 #define QCA_LAST_SEQUENCE_NUM 0xffff
2886
2887 struct qca_dump_hdr {
2888 u8 vse_class;
2889 u8 msg_type;
2890 __le16 seqno;
2891 u8 reserved;
2892 union {
2893 u8 data[0];
2894 struct {
2895 __le32 ram_dump_size;
2896 u8 data0[0];
2897 } __packed;
2898 };
2899 } __packed;
2900
2901
btusb_dump_hdr_qca(struct hci_dev * hdev,struct sk_buff * skb)2902 static void btusb_dump_hdr_qca(struct hci_dev *hdev, struct sk_buff *skb)
2903 {
2904 char buf[128];
2905 struct btusb_data *btdata = hci_get_drvdata(hdev);
2906
2907 snprintf(buf, sizeof(buf), "Controller Name: 0x%x\n",
2908 btdata->qca_dump.controller_id);
2909 skb_put_data(skb, buf, strlen(buf));
2910
2911 snprintf(buf, sizeof(buf), "Firmware Version: 0x%x\n",
2912 btdata->qca_dump.fw_version);
2913 skb_put_data(skb, buf, strlen(buf));
2914
2915 snprintf(buf, sizeof(buf), "Driver: %s\nVendor: qca\n",
2916 btusb_driver.name);
2917 skb_put_data(skb, buf, strlen(buf));
2918
2919 snprintf(buf, sizeof(buf), "VID: 0x%x\nPID:0x%x\n",
2920 btdata->qca_dump.id_vendor, btdata->qca_dump.id_product);
2921 skb_put_data(skb, buf, strlen(buf));
2922
2923 snprintf(buf, sizeof(buf), "Lmp Subversion: 0x%x\n",
2924 hdev->lmp_subver);
2925 skb_put_data(skb, buf, strlen(buf));
2926 }
2927
btusb_coredump_qca(struct hci_dev * hdev)2928 static void btusb_coredump_qca(struct hci_dev *hdev)
2929 {
2930 int err;
2931 static const u8 param[] = { 0x26 };
2932
2933 err = __hci_cmd_send(hdev, 0xfc0c, 1, param);
2934 if (err < 0)
2935 bt_dev_err(hdev, "%s: triggle crash failed (%d)", __func__, err);
2936 }
2937
2938 /*
2939 * ==0: not a dump pkt.
2940 * < 0: fails to handle a dump pkt
2941 * > 0: otherwise.
2942 */
handle_dump_pkt_qca(struct hci_dev * hdev,struct sk_buff * skb)2943 static int handle_dump_pkt_qca(struct hci_dev *hdev, struct sk_buff *skb)
2944 {
2945 int ret = 1;
2946 u8 pkt_type;
2947 u8 *sk_ptr;
2948 unsigned int sk_len;
2949 u16 seqno;
2950 u32 dump_size;
2951
2952 struct hci_event_hdr *event_hdr;
2953 struct hci_acl_hdr *acl_hdr;
2954 struct qca_dump_hdr *dump_hdr;
2955 struct btusb_data *btdata = hci_get_drvdata(hdev);
2956 struct usb_device *udev = btdata->udev;
2957
2958 pkt_type = hci_skb_pkt_type(skb);
2959 sk_ptr = skb->data;
2960 sk_len = skb->len;
2961
2962 if (pkt_type == HCI_ACLDATA_PKT) {
2963 acl_hdr = hci_acl_hdr(skb);
2964 if (le16_to_cpu(acl_hdr->handle) != QCA_MEMDUMP_ACL_HANDLE)
2965 return 0;
2966 sk_ptr += HCI_ACL_HDR_SIZE;
2967 sk_len -= HCI_ACL_HDR_SIZE;
2968 event_hdr = (struct hci_event_hdr *)sk_ptr;
2969 } else {
2970 event_hdr = hci_event_hdr(skb);
2971 }
2972
2973 if ((event_hdr->evt != HCI_VENDOR_PKT)
2974 || (event_hdr->plen != (sk_len - HCI_EVENT_HDR_SIZE)))
2975 return 0;
2976
2977 sk_ptr += HCI_EVENT_HDR_SIZE;
2978 sk_len -= HCI_EVENT_HDR_SIZE;
2979
2980 dump_hdr = (struct qca_dump_hdr *)sk_ptr;
2981 if ((sk_len < offsetof(struct qca_dump_hdr, data))
2982 || (dump_hdr->vse_class != QCA_MEMDUMP_VSE_CLASS)
2983 || (dump_hdr->msg_type != QCA_MEMDUMP_MSG_TYPE))
2984 return 0;
2985
2986 /*it is dump pkt now*/
2987 seqno = le16_to_cpu(dump_hdr->seqno);
2988 if (seqno == 0) {
2989 set_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags);
2990 dump_size = le32_to_cpu(dump_hdr->ram_dump_size);
2991 if (!dump_size || (dump_size > QCA_MEMDUMP_SIZE_MAX)) {
2992 ret = -EILSEQ;
2993 bt_dev_err(hdev, "Invalid memdump size(%u)",
2994 dump_size);
2995 goto out;
2996 }
2997
2998 ret = hci_devcd_init(hdev, dump_size);
2999 if (ret < 0) {
3000 bt_dev_err(hdev, "memdump init error(%d)", ret);
3001 goto out;
3002 }
3003
3004 btdata->qca_dump.ram_dump_size = dump_size;
3005 btdata->qca_dump.ram_dump_seqno = 0;
3006 sk_ptr += offsetof(struct qca_dump_hdr, data0);
3007 sk_len -= offsetof(struct qca_dump_hdr, data0);
3008
3009 usb_disable_autosuspend(udev);
3010 bt_dev_info(hdev, "%s memdump size(%u)\n",
3011 (pkt_type == HCI_ACLDATA_PKT) ? "ACL" : "event",
3012 dump_size);
3013 } else {
3014 sk_ptr += offsetof(struct qca_dump_hdr, data);
3015 sk_len -= offsetof(struct qca_dump_hdr, data);
3016 }
3017
3018 if (!btdata->qca_dump.ram_dump_size) {
3019 ret = -EINVAL;
3020 bt_dev_err(hdev, "memdump is not active");
3021 goto out;
3022 }
3023
3024 if ((seqno > btdata->qca_dump.ram_dump_seqno + 1) && (seqno != QCA_LAST_SEQUENCE_NUM)) {
3025 dump_size = QCA_MEMDUMP_PKT_SIZE * (seqno - btdata->qca_dump.ram_dump_seqno - 1);
3026 hci_devcd_append_pattern(hdev, 0x0, dump_size);
3027 bt_dev_err(hdev,
3028 "expected memdump seqno(%u) is not received(%u)\n",
3029 btdata->qca_dump.ram_dump_seqno, seqno);
3030 btdata->qca_dump.ram_dump_seqno = seqno;
3031 kfree_skb(skb);
3032 return ret;
3033 }
3034
3035 skb_pull(skb, skb->len - sk_len);
3036 hci_devcd_append(hdev, skb);
3037 btdata->qca_dump.ram_dump_seqno++;
3038 if (seqno == QCA_LAST_SEQUENCE_NUM) {
3039 bt_dev_info(hdev,
3040 "memdump done: pkts(%u), total(%u)\n",
3041 btdata->qca_dump.ram_dump_seqno, btdata->qca_dump.ram_dump_size);
3042
3043 hci_devcd_complete(hdev);
3044 goto out;
3045 }
3046 return ret;
3047
3048 out:
3049 if (btdata->qca_dump.ram_dump_size)
3050 usb_enable_autosuspend(udev);
3051 btdata->qca_dump.ram_dump_size = 0;
3052 btdata->qca_dump.ram_dump_seqno = 0;
3053 clear_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags);
3054
3055 if (ret < 0)
3056 kfree_skb(skb);
3057 return ret;
3058 }
3059
btusb_recv_acl_qca(struct hci_dev * hdev,struct sk_buff * skb)3060 static int btusb_recv_acl_qca(struct hci_dev *hdev, struct sk_buff *skb)
3061 {
3062 if (handle_dump_pkt_qca(hdev, skb))
3063 return 0;
3064 return hci_recv_frame(hdev, skb);
3065 }
3066
btusb_recv_evt_qca(struct hci_dev * hdev,struct sk_buff * skb)3067 static int btusb_recv_evt_qca(struct hci_dev *hdev, struct sk_buff *skb)
3068 {
3069 if (handle_dump_pkt_qca(hdev, skb))
3070 return 0;
3071 return hci_recv_frame(hdev, skb);
3072 }
3073
3074
3075 #define QCA_DFU_PACKET_LEN 4096
3076
3077 #define QCA_GET_TARGET_VERSION 0x09
3078 #define QCA_CHECK_STATUS 0x05
3079 #define QCA_DFU_DOWNLOAD 0x01
3080
3081 #define QCA_SYSCFG_UPDATED 0x40
3082 #define QCA_PATCH_UPDATED 0x80
3083 #define QCA_DFU_TIMEOUT 3000
3084 #define QCA_FLAG_MULTI_NVM 0x80
3085 #define QCA_BT_RESET_WAIT_MS 100
3086
3087 #define WCN6855_2_0_RAM_VERSION_GF 0x400c1200
3088 #define WCN6855_2_1_RAM_VERSION_GF 0x400c1211
3089
3090 struct qca_version {
3091 __le32 rom_version;
3092 __le32 patch_version;
3093 __le32 ram_version;
3094 __u8 chip_id;
3095 __u8 platform_id;
3096 __le16 flag;
3097 __u8 reserved[4];
3098 } __packed;
3099
3100 struct qca_rampatch_version {
3101 __le16 rom_version_high;
3102 __le16 rom_version_low;
3103 __le16 patch_version;
3104 } __packed;
3105
3106 struct qca_device_info {
3107 u32 rom_version;
3108 u8 rampatch_hdr; /* length of header in rampatch */
3109 u8 nvm_hdr; /* length of header in NVM */
3110 u8 ver_offset; /* offset of version structure in rampatch */
3111 };
3112
3113 static const struct qca_device_info qca_devices_table[] = {
3114 { 0x00000100, 20, 4, 8 }, /* Rome 1.0 */
3115 { 0x00000101, 20, 4, 8 }, /* Rome 1.1 */
3116 { 0x00000200, 28, 4, 16 }, /* Rome 2.0 */
3117 { 0x00000201, 28, 4, 16 }, /* Rome 2.1 */
3118 { 0x00000300, 28, 4, 16 }, /* Rome 3.0 */
3119 { 0x00000302, 28, 4, 16 }, /* Rome 3.2 */
3120 { 0x00130100, 40, 4, 16 }, /* WCN6855 1.0 */
3121 { 0x00130200, 40, 4, 16 }, /* WCN6855 2.0 */
3122 { 0x00130201, 40, 4, 16 }, /* WCN6855 2.1 */
3123 { 0x00190200, 40, 4, 16 }, /* WCN785x 2.0 */
3124 };
3125
btusb_qca_send_vendor_req(struct usb_device * udev,u8 request,void * data,u16 size)3126 static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request,
3127 void *data, u16 size)
3128 {
3129 int pipe, err;
3130 u8 *buf;
3131
3132 buf = kmalloc(size, GFP_KERNEL);
3133 if (!buf)
3134 return -ENOMEM;
3135
3136 /* Found some of USB hosts have IOT issues with ours so that we should
3137 * not wait until HCI layer is ready.
3138 */
3139 pipe = usb_rcvctrlpipe(udev, 0);
3140 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
3141 0, 0, buf, size, USB_CTRL_GET_TIMEOUT);
3142 if (err < 0) {
3143 dev_err(&udev->dev, "Failed to access otp area (%d)", err);
3144 goto done;
3145 }
3146
3147 memcpy(data, buf, size);
3148
3149 done:
3150 kfree(buf);
3151
3152 return err;
3153 }
3154
btusb_setup_qca_download_fw(struct hci_dev * hdev,const struct firmware * firmware,size_t hdr_size)3155 static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
3156 const struct firmware *firmware,
3157 size_t hdr_size)
3158 {
3159 struct btusb_data *btdata = hci_get_drvdata(hdev);
3160 struct usb_device *udev = btdata->udev;
3161 size_t count, size, sent = 0;
3162 int pipe, len, err;
3163 u8 *buf;
3164
3165 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
3166 if (!buf)
3167 return -ENOMEM;
3168
3169 count = firmware->size;
3170
3171 size = min_t(size_t, count, hdr_size);
3172 memcpy(buf, firmware->data, size);
3173
3174 /* USB patches should go down to controller through USB path
3175 * because binary format fits to go down through USB channel.
3176 * USB control path is for patching headers and USB bulk is for
3177 * patch body.
3178 */
3179 pipe = usb_sndctrlpipe(udev, 0);
3180 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
3181 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
3182 if (err < 0) {
3183 bt_dev_err(hdev, "Failed to send headers (%d)", err);
3184 goto done;
3185 }
3186
3187 sent += size;
3188 count -= size;
3189
3190 /* ep2 need time to switch from function acl to function dfu,
3191 * so we add 20ms delay here.
3192 */
3193 msleep(20);
3194
3195 while (count) {
3196 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
3197
3198 memcpy(buf, firmware->data + sent, size);
3199
3200 pipe = usb_sndbulkpipe(udev, 0x02);
3201 err = usb_bulk_msg(udev, pipe, buf, size, &len,
3202 QCA_DFU_TIMEOUT);
3203 if (err < 0) {
3204 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)",
3205 sent, firmware->size, err);
3206 break;
3207 }
3208
3209 if (size != len) {
3210 bt_dev_err(hdev, "Failed to get bulk buffer");
3211 err = -EILSEQ;
3212 break;
3213 }
3214
3215 sent += size;
3216 count -= size;
3217 }
3218
3219 done:
3220 kfree(buf);
3221 return err;
3222 }
3223
btusb_setup_qca_load_rampatch(struct hci_dev * hdev,struct qca_version * ver,const struct qca_device_info * info)3224 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
3225 struct qca_version *ver,
3226 const struct qca_device_info *info)
3227 {
3228 struct qca_rampatch_version *rver;
3229 const struct firmware *fw;
3230 u32 ver_rom, ver_patch, rver_rom;
3231 u16 rver_rom_low, rver_rom_high, rver_patch;
3232 char fwname[64];
3233 int err;
3234
3235 ver_rom = le32_to_cpu(ver->rom_version);
3236 ver_patch = le32_to_cpu(ver->patch_version);
3237
3238 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom);
3239
3240 err = request_firmware(&fw, fwname, &hdev->dev);
3241 if (err) {
3242 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)",
3243 fwname, err);
3244 return err;
3245 }
3246
3247 bt_dev_info(hdev, "using rampatch file: %s", fwname);
3248
3249 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
3250 rver_rom_low = le16_to_cpu(rver->rom_version_low);
3251 rver_patch = le16_to_cpu(rver->patch_version);
3252
3253 if (ver_rom & ~0xffffU) {
3254 rver_rom_high = le16_to_cpu(rver->rom_version_high);
3255 rver_rom = rver_rom_high << 16 | rver_rom_low;
3256 } else {
3257 rver_rom = rver_rom_low;
3258 }
3259
3260 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, "
3261 "firmware rome 0x%x build 0x%x",
3262 rver_rom, rver_patch, ver_rom, ver_patch);
3263
3264 if (rver_rom != ver_rom || rver_patch <= ver_patch) {
3265 bt_dev_err(hdev, "rampatch file version did not match with firmware");
3266 err = -EINVAL;
3267 goto done;
3268 }
3269
3270 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
3271
3272 done:
3273 release_firmware(fw);
3274
3275 return err;
3276 }
3277
btusb_generate_qca_nvm_name(char * fwname,size_t max_size,const struct qca_version * ver)3278 static void btusb_generate_qca_nvm_name(char *fwname, size_t max_size,
3279 const struct qca_version *ver)
3280 {
3281 u32 rom_version = le32_to_cpu(ver->rom_version);
3282 u16 flag = le16_to_cpu(ver->flag);
3283
3284 if (((flag >> 8) & 0xff) == QCA_FLAG_MULTI_NVM) {
3285 /* The board_id should be split into two bytes
3286 * The 1st byte is chip ID, and the 2nd byte is platform ID
3287 * For example, board ID 0x010A, 0x01 is platform ID. 0x0A is chip ID
3288 * we have several platforms, and platform IDs are continuously added
3289 * Platform ID:
3290 * 0x00 is for Mobile
3291 * 0x01 is for X86
3292 * 0x02 is for Automotive
3293 * 0x03 is for Consumer electronic
3294 */
3295 u16 board_id = (ver->chip_id << 8) + ver->platform_id;
3296 const char *variant;
3297
3298 switch (le32_to_cpu(ver->ram_version)) {
3299 case WCN6855_2_0_RAM_VERSION_GF:
3300 case WCN6855_2_1_RAM_VERSION_GF:
3301 variant = "_gf";
3302 break;
3303 default:
3304 variant = "";
3305 break;
3306 }
3307
3308 if (board_id == 0) {
3309 snprintf(fwname, max_size, "qca/nvm_usb_%08x%s.bin",
3310 rom_version, variant);
3311 } else {
3312 snprintf(fwname, max_size, "qca/nvm_usb_%08x%s_%04x.bin",
3313 rom_version, variant, board_id);
3314 }
3315 } else {
3316 snprintf(fwname, max_size, "qca/nvm_usb_%08x.bin",
3317 rom_version);
3318 }
3319
3320 }
3321
btusb_setup_qca_load_nvm(struct hci_dev * hdev,struct qca_version * ver,const struct qca_device_info * info)3322 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
3323 struct qca_version *ver,
3324 const struct qca_device_info *info)
3325 {
3326 const struct firmware *fw;
3327 char fwname[64];
3328 int err;
3329
3330 btusb_generate_qca_nvm_name(fwname, sizeof(fwname), ver);
3331
3332 err = request_firmware(&fw, fwname, &hdev->dev);
3333 if (err) {
3334 bt_dev_err(hdev, "failed to request NVM file: %s (%d)",
3335 fwname, err);
3336 return err;
3337 }
3338
3339 bt_dev_info(hdev, "using NVM file: %s", fwname);
3340
3341 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
3342
3343 release_firmware(fw);
3344
3345 return err;
3346 }
3347
3348 /* identify the ROM version and check whether patches are needed */
btusb_qca_need_patch(struct usb_device * udev)3349 static bool btusb_qca_need_patch(struct usb_device *udev)
3350 {
3351 struct qca_version ver;
3352
3353 if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3354 sizeof(ver)) < 0)
3355 return false;
3356 /* only low ROM versions need patches */
3357 return !(le32_to_cpu(ver.rom_version) & ~0xffffU);
3358 }
3359
btusb_setup_qca(struct hci_dev * hdev)3360 static int btusb_setup_qca(struct hci_dev *hdev)
3361 {
3362 struct btusb_data *btdata = hci_get_drvdata(hdev);
3363 struct usb_device *udev = btdata->udev;
3364 const struct qca_device_info *info = NULL;
3365 struct qca_version ver;
3366 u32 ver_rom;
3367 u8 status;
3368 int i, err;
3369
3370 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3371 sizeof(ver));
3372 if (err < 0)
3373 return err;
3374
3375 ver_rom = le32_to_cpu(ver.rom_version);
3376
3377 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
3378 if (ver_rom == qca_devices_table[i].rom_version)
3379 info = &qca_devices_table[i];
3380 }
3381 if (!info) {
3382 /* If the rom_version is not matched in the qca_devices_table
3383 * and the high ROM version is not zero, we assume this chip no
3384 * need to load the rampatch and nvm.
3385 */
3386 if (ver_rom & ~0xffffU)
3387 return 0;
3388
3389 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom);
3390 return -ENODEV;
3391 }
3392
3393 err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status,
3394 sizeof(status));
3395 if (err < 0)
3396 return err;
3397
3398 if (!(status & QCA_PATCH_UPDATED)) {
3399 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
3400 if (err < 0)
3401 return err;
3402 }
3403
3404 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3405 sizeof(ver));
3406 if (err < 0)
3407 return err;
3408
3409 btdata->qca_dump.fw_version = le32_to_cpu(ver.patch_version);
3410 btdata->qca_dump.controller_id = le32_to_cpu(ver.rom_version);
3411
3412 if (!(status & QCA_SYSCFG_UPDATED)) {
3413 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
3414 if (err < 0)
3415 return err;
3416
3417 /* WCN6855 2.1 and later will reset to apply firmware downloaded here, so
3418 * wait ~100ms for reset Done then go ahead, otherwise, it maybe
3419 * cause potential enable failure.
3420 */
3421 if (info->rom_version >= 0x00130201)
3422 msleep(QCA_BT_RESET_WAIT_MS);
3423 }
3424
3425 /* Mark HCI_OP_ENHANCED_SETUP_SYNC_CONN as broken as it doesn't seem to
3426 * work with the likes of HSP/HFP mSBC.
3427 */
3428 set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks);
3429
3430 return 0;
3431 }
3432
__set_diag_interface(struct hci_dev * hdev)3433 static inline int __set_diag_interface(struct hci_dev *hdev)
3434 {
3435 struct btusb_data *data = hci_get_drvdata(hdev);
3436 struct usb_interface *intf = data->diag;
3437 int i;
3438
3439 if (!data->diag)
3440 return -ENODEV;
3441
3442 data->diag_tx_ep = NULL;
3443 data->diag_rx_ep = NULL;
3444
3445 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
3446 struct usb_endpoint_descriptor *ep_desc;
3447
3448 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
3449
3450 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
3451 data->diag_tx_ep = ep_desc;
3452 continue;
3453 }
3454
3455 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
3456 data->diag_rx_ep = ep_desc;
3457 continue;
3458 }
3459 }
3460
3461 if (!data->diag_tx_ep || !data->diag_rx_ep) {
3462 bt_dev_err(hdev, "invalid diagnostic descriptors");
3463 return -ENODEV;
3464 }
3465
3466 return 0;
3467 }
3468
alloc_diag_urb(struct hci_dev * hdev,bool enable)3469 static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable)
3470 {
3471 struct btusb_data *data = hci_get_drvdata(hdev);
3472 struct sk_buff *skb;
3473 struct urb *urb;
3474 unsigned int pipe;
3475
3476 if (!data->diag_tx_ep)
3477 return ERR_PTR(-ENODEV);
3478
3479 urb = usb_alloc_urb(0, GFP_KERNEL);
3480 if (!urb)
3481 return ERR_PTR(-ENOMEM);
3482
3483 skb = bt_skb_alloc(2, GFP_KERNEL);
3484 if (!skb) {
3485 usb_free_urb(urb);
3486 return ERR_PTR(-ENOMEM);
3487 }
3488
3489 skb_put_u8(skb, 0xf0);
3490 skb_put_u8(skb, enable);
3491
3492 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress);
3493
3494 usb_fill_bulk_urb(urb, data->udev, pipe,
3495 skb->data, skb->len, btusb_tx_complete, skb);
3496
3497 skb->dev = (void *)hdev;
3498
3499 return urb;
3500 }
3501
btusb_bcm_set_diag(struct hci_dev * hdev,bool enable)3502 static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable)
3503 {
3504 struct btusb_data *data = hci_get_drvdata(hdev);
3505 struct urb *urb;
3506
3507 if (!data->diag)
3508 return -ENODEV;
3509
3510 if (!test_bit(HCI_RUNNING, &hdev->flags))
3511 return -ENETDOWN;
3512
3513 urb = alloc_diag_urb(hdev, enable);
3514 if (IS_ERR(urb))
3515 return PTR_ERR(urb);
3516
3517 return submit_or_queue_tx_urb(hdev, urb);
3518 }
3519
3520 #ifdef CONFIG_PM
btusb_oob_wake_handler(int irq,void * priv)3521 static irqreturn_t btusb_oob_wake_handler(int irq, void *priv)
3522 {
3523 struct btusb_data *data = priv;
3524
3525 pm_wakeup_event(&data->udev->dev, 0);
3526 pm_system_wakeup();
3527
3528 /* Disable only if not already disabled (keep it balanced) */
3529 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
3530 disable_irq_nosync(irq);
3531 disable_irq_wake(irq);
3532 }
3533 return IRQ_HANDLED;
3534 }
3535
3536 static const struct of_device_id btusb_match_table[] = {
3537 { .compatible = "usb1286,204e" },
3538 { .compatible = "usbcf3,e300" }, /* QCA6174A */
3539 { .compatible = "usb4ca,301a" }, /* QCA6174A (Lite-On) */
3540 { }
3541 };
3542 MODULE_DEVICE_TABLE(of, btusb_match_table);
3543
3544 /* Use an oob wakeup pin? */
btusb_config_oob_wake(struct hci_dev * hdev)3545 static int btusb_config_oob_wake(struct hci_dev *hdev)
3546 {
3547 struct btusb_data *data = hci_get_drvdata(hdev);
3548 struct device *dev = &data->udev->dev;
3549 int irq, ret;
3550
3551 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
3552
3553 if (!of_match_device(btusb_match_table, dev))
3554 return 0;
3555
3556 /* Move on if no IRQ specified */
3557 irq = of_irq_get_byname(dev->of_node, "wakeup");
3558 if (irq <= 0) {
3559 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__);
3560 return 0;
3561 }
3562
3563 irq_set_status_flags(irq, IRQ_NOAUTOEN);
3564 ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler,
3565 0, "OOB Wake-on-BT", data);
3566 if (ret) {
3567 bt_dev_err(hdev, "%s: IRQ request failed", __func__);
3568 return ret;
3569 }
3570
3571 ret = device_init_wakeup(dev, true);
3572 if (ret) {
3573 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__);
3574 return ret;
3575 }
3576
3577 data->oob_wake_irq = irq;
3578 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq);
3579 return 0;
3580 }
3581 #endif
3582
btusb_check_needs_reset_resume(struct usb_interface * intf)3583 static void btusb_check_needs_reset_resume(struct usb_interface *intf)
3584 {
3585 if (dmi_check_system(btusb_needs_reset_resume_table))
3586 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
3587 }
3588
btusb_wakeup(struct hci_dev * hdev)3589 static bool btusb_wakeup(struct hci_dev *hdev)
3590 {
3591 struct btusb_data *data = hci_get_drvdata(hdev);
3592
3593 return device_may_wakeup(&data->udev->dev);
3594 }
3595
btusb_shutdown_qca(struct hci_dev * hdev)3596 static int btusb_shutdown_qca(struct hci_dev *hdev)
3597 {
3598 struct sk_buff *skb;
3599
3600 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
3601 if (IS_ERR(skb)) {
3602 bt_dev_err(hdev, "HCI reset during shutdown failed");
3603 return PTR_ERR(skb);
3604 }
3605 kfree_skb(skb);
3606
3607 return 0;
3608 }
3609
force_poll_sync_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)3610 static ssize_t force_poll_sync_read(struct file *file, char __user *user_buf,
3611 size_t count, loff_t *ppos)
3612 {
3613 struct btusb_data *data = file->private_data;
3614 char buf[3];
3615
3616 buf[0] = data->poll_sync ? 'Y' : 'N';
3617 buf[1] = '\n';
3618 buf[2] = '\0';
3619 return simple_read_from_buffer(user_buf, count, ppos, buf, 2);
3620 }
3621
force_poll_sync_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)3622 static ssize_t force_poll_sync_write(struct file *file,
3623 const char __user *user_buf,
3624 size_t count, loff_t *ppos)
3625 {
3626 struct btusb_data *data = file->private_data;
3627 bool enable;
3628 int err;
3629
3630 err = kstrtobool_from_user(user_buf, count, &enable);
3631 if (err)
3632 return err;
3633
3634 /* Only allow changes while the adapter is down */
3635 if (test_bit(HCI_UP, &data->hdev->flags))
3636 return -EPERM;
3637
3638 if (data->poll_sync == enable)
3639 return -EALREADY;
3640
3641 data->poll_sync = enable;
3642
3643 return count;
3644 }
3645
3646 static const struct file_operations force_poll_sync_fops = {
3647 .owner = THIS_MODULE,
3648 .open = simple_open,
3649 .read = force_poll_sync_read,
3650 .write = force_poll_sync_write,
3651 .llseek = default_llseek,
3652 };
3653
isoc_alt_show(struct device * dev,struct device_attribute * attr,char * buf)3654 static ssize_t isoc_alt_show(struct device *dev,
3655 struct device_attribute *attr,
3656 char *buf)
3657 {
3658 struct btusb_data *data = dev_get_drvdata(dev);
3659
3660 return sysfs_emit(buf, "%d\n", data->isoc_altsetting);
3661 }
3662
isoc_alt_store(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)3663 static ssize_t isoc_alt_store(struct device *dev,
3664 struct device_attribute *attr,
3665 const char *buf, size_t count)
3666 {
3667 struct btusb_data *data = dev_get_drvdata(dev);
3668 int alt;
3669 int ret;
3670
3671 if (kstrtoint(buf, 10, &alt))
3672 return -EINVAL;
3673
3674 ret = btusb_switch_alt_setting(data->hdev, alt);
3675 return ret < 0 ? ret : count;
3676 }
3677
3678 static DEVICE_ATTR_RW(isoc_alt);
3679
btusb_probe(struct usb_interface * intf,const struct usb_device_id * id)3680 static int btusb_probe(struct usb_interface *intf,
3681 const struct usb_device_id *id)
3682 {
3683 struct usb_endpoint_descriptor *ep_desc;
3684 struct gpio_desc *reset_gpio;
3685 struct btusb_data *data;
3686 struct hci_dev *hdev;
3687 unsigned ifnum_base;
3688 int i, err, priv_size;
3689
3690 BT_DBG("intf %p id %p", intf, id);
3691
3692 if ((id->driver_info & BTUSB_IFNUM_2) &&
3693 (intf->cur_altsetting->desc.bInterfaceNumber != 0) &&
3694 (intf->cur_altsetting->desc.bInterfaceNumber != 2))
3695 return -ENODEV;
3696
3697 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber;
3698
3699 if (!id->driver_info) {
3700 const struct usb_device_id *match;
3701
3702 match = usb_match_id(intf, quirks_table);
3703 if (match)
3704 id = match;
3705 }
3706
3707 if (id->driver_info == BTUSB_IGNORE)
3708 return -ENODEV;
3709
3710 if (id->driver_info & BTUSB_ATH3012) {
3711 struct usb_device *udev = interface_to_usbdev(intf);
3712
3713 /* Old firmware would otherwise let ath3k driver load
3714 * patch and sysconfig files
3715 */
3716 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 &&
3717 !btusb_qca_need_patch(udev))
3718 return -ENODEV;
3719 }
3720
3721 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
3722 if (!data)
3723 return -ENOMEM;
3724
3725 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
3726 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
3727
3728 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
3729 data->intr_ep = ep_desc;
3730 continue;
3731 }
3732
3733 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
3734 data->bulk_tx_ep = ep_desc;
3735 continue;
3736 }
3737
3738 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
3739 data->bulk_rx_ep = ep_desc;
3740 continue;
3741 }
3742 }
3743
3744 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
3745 return -ENODEV;
3746
3747 if (id->driver_info & BTUSB_AMP) {
3748 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
3749 data->cmdreq = 0x2b;
3750 } else {
3751 data->cmdreq_type = USB_TYPE_CLASS;
3752 data->cmdreq = 0x00;
3753 }
3754
3755 data->udev = interface_to_usbdev(intf);
3756 data->intf = intf;
3757
3758 INIT_WORK(&data->work, btusb_work);
3759 INIT_WORK(&data->waker, btusb_waker);
3760 INIT_DELAYED_WORK(&data->rx_work, btusb_rx_work);
3761
3762 skb_queue_head_init(&data->acl_q);
3763
3764 init_usb_anchor(&data->deferred);
3765 init_usb_anchor(&data->tx_anchor);
3766 spin_lock_init(&data->txlock);
3767
3768 init_usb_anchor(&data->intr_anchor);
3769 init_usb_anchor(&data->bulk_anchor);
3770 init_usb_anchor(&data->isoc_anchor);
3771 init_usb_anchor(&data->diag_anchor);
3772 init_usb_anchor(&data->ctrl_anchor);
3773 spin_lock_init(&data->rxlock);
3774
3775 priv_size = 0;
3776
3777 data->recv_event = hci_recv_frame;
3778 data->recv_bulk = btusb_recv_bulk;
3779
3780 if (id->driver_info & BTUSB_INTEL_COMBINED) {
3781 /* Allocate extra space for Intel device */
3782 priv_size += sizeof(struct btintel_data);
3783
3784 /* Override the rx handlers */
3785 data->recv_event = btintel_recv_event;
3786 data->recv_bulk = btusb_recv_bulk_intel;
3787 } else if (id->driver_info & BTUSB_REALTEK) {
3788 /* Allocate extra space for Realtek device */
3789 priv_size += sizeof(struct btrealtek_data);
3790
3791 data->recv_event = btusb_recv_event_realtek;
3792 } else if (id->driver_info & BTUSB_MEDIATEK) {
3793 /* Allocate extra space for Mediatek device */
3794 priv_size += sizeof(struct btmtk_data);
3795 }
3796
3797 data->recv_acl = hci_recv_frame;
3798
3799 hdev = hci_alloc_dev_priv(priv_size);
3800 if (!hdev)
3801 return -ENOMEM;
3802
3803 hdev->bus = HCI_USB;
3804 hci_set_drvdata(hdev, data);
3805
3806 data->hdev = hdev;
3807
3808 SET_HCIDEV_DEV(hdev, &intf->dev);
3809
3810 reset_gpio = gpiod_get_optional(&data->udev->dev, "reset",
3811 GPIOD_OUT_LOW);
3812 if (IS_ERR(reset_gpio)) {
3813 err = PTR_ERR(reset_gpio);
3814 goto out_free_dev;
3815 } else if (reset_gpio) {
3816 data->reset_gpio = reset_gpio;
3817 }
3818
3819 hdev->open = btusb_open;
3820 hdev->close = btusb_close;
3821 hdev->flush = btusb_flush;
3822 hdev->send = btusb_send_frame;
3823 hdev->notify = btusb_notify;
3824 hdev->wakeup = btusb_wakeup;
3825
3826 #ifdef CONFIG_PM
3827 err = btusb_config_oob_wake(hdev);
3828 if (err)
3829 goto out_free_dev;
3830
3831 /* Marvell devices may need a specific chip configuration */
3832 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) {
3833 err = marvell_config_oob_wake(hdev);
3834 if (err)
3835 goto out_free_dev;
3836 }
3837 #endif
3838 if (id->driver_info & BTUSB_CW6622)
3839 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
3840
3841 if (id->driver_info & BTUSB_BCM2045)
3842 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
3843
3844 if (id->driver_info & BTUSB_BCM92035)
3845 hdev->setup = btusb_setup_bcm92035;
3846
3847 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
3848 (id->driver_info & BTUSB_BCM_PATCHRAM)) {
3849 hdev->manufacturer = 15;
3850 hdev->setup = btbcm_setup_patchram;
3851 hdev->set_diag = btusb_bcm_set_diag;
3852 hdev->set_bdaddr = btbcm_set_bdaddr;
3853
3854 /* Broadcom LM_DIAG Interface numbers are hardcoded */
3855 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
3856 }
3857
3858 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
3859 (id->driver_info & BTUSB_BCM_APPLE)) {
3860 hdev->manufacturer = 15;
3861 hdev->setup = btbcm_setup_apple;
3862 hdev->set_diag = btusb_bcm_set_diag;
3863
3864 /* Broadcom LM_DIAG Interface numbers are hardcoded */
3865 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
3866 }
3867
3868 /* Combined Intel Device setup to support multiple setup routine */
3869 if (id->driver_info & BTUSB_INTEL_COMBINED) {
3870 err = btintel_configure_setup(hdev, btusb_driver.name);
3871 if (err)
3872 goto out_free_dev;
3873
3874 /* Transport specific configuration */
3875 hdev->send = btusb_send_frame_intel;
3876 hdev->reset = btusb_intel_reset;
3877
3878 if (id->driver_info & BTUSB_INTEL_NO_WBS_SUPPORT)
3879 btintel_set_flag(hdev, INTEL_ROM_LEGACY_NO_WBS_SUPPORT);
3880
3881 if (id->driver_info & BTUSB_INTEL_BROKEN_INITIAL_NCMD)
3882 btintel_set_flag(hdev, INTEL_BROKEN_INITIAL_NCMD);
3883
3884 if (id->driver_info & BTUSB_INTEL_BROKEN_SHUTDOWN_LED)
3885 btintel_set_flag(hdev, INTEL_BROKEN_SHUTDOWN_LED);
3886 }
3887
3888 if (id->driver_info & BTUSB_MARVELL)
3889 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
3890
3891 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_MTK) &&
3892 (id->driver_info & BTUSB_MEDIATEK)) {
3893 hdev->setup = btusb_mtk_setup;
3894 hdev->shutdown = btusb_mtk_shutdown;
3895 hdev->manufacturer = 70;
3896 hdev->reset = btmtk_reset_sync;
3897 hdev->set_bdaddr = btmtk_set_bdaddr;
3898 hdev->send = btusb_send_frame_mtk;
3899 set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks);
3900 set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
3901 data->recv_acl = btmtk_usb_recv_acl;
3902 data->suspend = btmtk_usb_suspend;
3903 data->resume = btmtk_usb_resume;
3904 data->disconnect = btusb_mtk_disconnect;
3905 }
3906
3907 if (id->driver_info & BTUSB_SWAVE) {
3908 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
3909 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
3910 }
3911
3912 if (id->driver_info & BTUSB_INTEL_BOOT) {
3913 hdev->manufacturer = 2;
3914 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
3915 }
3916
3917 if (id->driver_info & BTUSB_ATH3012) {
3918 data->setup_on_usb = btusb_setup_qca;
3919 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
3920 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3921 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
3922 }
3923
3924 if (id->driver_info & BTUSB_QCA_ROME) {
3925 data->setup_on_usb = btusb_setup_qca;
3926 hdev->shutdown = btusb_shutdown_qca;
3927 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
3928 hdev->reset = btusb_qca_reset;
3929 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3930 btusb_check_needs_reset_resume(intf);
3931 }
3932
3933 if (id->driver_info & BTUSB_QCA_WCN6855) {
3934 data->qca_dump.id_vendor = id->idVendor;
3935 data->qca_dump.id_product = id->idProduct;
3936 data->recv_event = btusb_recv_evt_qca;
3937 data->recv_acl = btusb_recv_acl_qca;
3938 hci_devcd_register(hdev, btusb_coredump_qca, btusb_dump_hdr_qca, NULL);
3939 data->setup_on_usb = btusb_setup_qca;
3940 hdev->shutdown = btusb_shutdown_qca;
3941 hdev->set_bdaddr = btusb_set_bdaddr_wcn6855;
3942 hdev->reset = btusb_qca_reset;
3943 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3944 hci_set_msft_opcode(hdev, 0xFD70);
3945 }
3946
3947 if (id->driver_info & BTUSB_AMP) {
3948 /* AMP controllers do not support SCO packets */
3949 data->isoc = NULL;
3950 } else {
3951 /* Interface orders are hardcoded in the specification */
3952 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1);
3953 data->isoc_ifnum = ifnum_base + 1;
3954 }
3955
3956 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_RTL) &&
3957 (id->driver_info & BTUSB_REALTEK)) {
3958 btrtl_set_driver_name(hdev, btusb_driver.name);
3959 hdev->setup = btusb_setup_realtek;
3960 hdev->shutdown = btrtl_shutdown_realtek;
3961 hdev->reset = btusb_rtl_reset;
3962 hdev->hw_error = btusb_rtl_hw_error;
3963
3964 /* Realtek devices need to set remote wakeup on auto-suspend */
3965 set_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags);
3966 set_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags);
3967 }
3968
3969 if (id->driver_info & BTUSB_ACTIONS_SEMI) {
3970 /* Support is advertised, but not implemented */
3971 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks);
3972 set_bit(HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER, &hdev->quirks);
3973 set_bit(HCI_QUIRK_BROKEN_SET_RPA_TIMEOUT, &hdev->quirks);
3974 set_bit(HCI_QUIRK_BROKEN_EXT_SCAN, &hdev->quirks);
3975 set_bit(HCI_QUIRK_BROKEN_READ_ENC_KEY_SIZE, &hdev->quirks);
3976 set_bit(HCI_QUIRK_BROKEN_EXT_CREATE_CONN, &hdev->quirks);
3977 set_bit(HCI_QUIRK_BROKEN_WRITE_AUTH_PAYLOAD_TIMEOUT, &hdev->quirks);
3978 }
3979
3980 if (!reset)
3981 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3982
3983 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
3984 if (!disable_scofix)
3985 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
3986 }
3987
3988 if (id->driver_info & BTUSB_BROKEN_ISOC)
3989 data->isoc = NULL;
3990
3991 if (id->driver_info & BTUSB_WIDEBAND_SPEECH)
3992 set_bit(HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED, &hdev->quirks);
3993
3994 if (id->driver_info & BTUSB_INVALID_LE_STATES)
3995 set_bit(HCI_QUIRK_BROKEN_LE_STATES, &hdev->quirks);
3996
3997 if (id->driver_info & BTUSB_DIGIANSWER) {
3998 data->cmdreq_type = USB_TYPE_VENDOR;
3999 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
4000 }
4001
4002 if (id->driver_info & BTUSB_CSR) {
4003 struct usb_device *udev = data->udev;
4004 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
4005
4006 /* Old firmware would otherwise execute USB reset */
4007 if (bcdDevice < 0x117)
4008 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
4009
4010 /* This must be set first in case we disable it for fakes */
4011 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4012
4013 /* Fake CSR devices with broken commands */
4014 if (le16_to_cpu(udev->descriptor.idVendor) == 0x0a12 &&
4015 le16_to_cpu(udev->descriptor.idProduct) == 0x0001)
4016 hdev->setup = btusb_setup_csr;
4017 }
4018
4019 if (id->driver_info & BTUSB_SNIFFER) {
4020 struct usb_device *udev = data->udev;
4021
4022 /* New sniffer firmware has crippled HCI interface */
4023 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
4024 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
4025 }
4026
4027 if (id->driver_info & BTUSB_INTEL_BOOT) {
4028 /* A bug in the bootloader causes that interrupt interface is
4029 * only enabled after receiving SetInterface(0, AltSetting=0).
4030 */
4031 err = usb_set_interface(data->udev, 0, 0);
4032 if (err < 0) {
4033 BT_ERR("failed to set interface 0, alt 0 %d", err);
4034 goto out_free_dev;
4035 }
4036 }
4037
4038 if (data->isoc) {
4039 err = usb_driver_claim_interface(&btusb_driver,
4040 data->isoc, data);
4041 if (err < 0)
4042 goto out_free_dev;
4043
4044 err = device_create_file(&intf->dev, &dev_attr_isoc_alt);
4045 if (err)
4046 goto out_free_dev;
4047 }
4048
4049 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && data->diag) {
4050 if (!usb_driver_claim_interface(&btusb_driver,
4051 data->diag, data))
4052 __set_diag_interface(hdev);
4053 else
4054 data->diag = NULL;
4055 }
4056
4057 if (enable_autosuspend)
4058 usb_enable_autosuspend(data->udev);
4059
4060 data->poll_sync = enable_poll_sync;
4061
4062 err = hci_register_dev(hdev);
4063 if (err < 0)
4064 goto out_free_dev;
4065
4066 usb_set_intfdata(intf, data);
4067
4068 debugfs_create_file("force_poll_sync", 0644, hdev->debugfs, data,
4069 &force_poll_sync_fops);
4070
4071 return 0;
4072
4073 out_free_dev:
4074 if (data->reset_gpio)
4075 gpiod_put(data->reset_gpio);
4076 hci_free_dev(hdev);
4077 return err;
4078 }
4079
btusb_disconnect(struct usb_interface * intf)4080 static void btusb_disconnect(struct usb_interface *intf)
4081 {
4082 struct btusb_data *data = usb_get_intfdata(intf);
4083 struct hci_dev *hdev;
4084
4085 BT_DBG("intf %p", intf);
4086
4087 if (!data)
4088 return;
4089
4090 hdev = data->hdev;
4091 usb_set_intfdata(data->intf, NULL);
4092
4093 if (data->isoc) {
4094 device_remove_file(&intf->dev, &dev_attr_isoc_alt);
4095 usb_set_intfdata(data->isoc, NULL);
4096 }
4097
4098 if (data->diag)
4099 usb_set_intfdata(data->diag, NULL);
4100
4101 if (data->disconnect)
4102 data->disconnect(hdev);
4103
4104 hci_unregister_dev(hdev);
4105
4106 if (intf == data->intf) {
4107 if (data->isoc)
4108 usb_driver_release_interface(&btusb_driver, data->isoc);
4109 if (data->diag)
4110 usb_driver_release_interface(&btusb_driver, data->diag);
4111 } else if (intf == data->isoc) {
4112 if (data->diag)
4113 usb_driver_release_interface(&btusb_driver, data->diag);
4114 usb_driver_release_interface(&btusb_driver, data->intf);
4115 } else if (intf == data->diag) {
4116 usb_driver_release_interface(&btusb_driver, data->intf);
4117 if (data->isoc)
4118 usb_driver_release_interface(&btusb_driver, data->isoc);
4119 }
4120
4121 if (data->oob_wake_irq)
4122 device_init_wakeup(&data->udev->dev, false);
4123
4124 if (data->reset_gpio)
4125 gpiod_put(data->reset_gpio);
4126
4127 hci_free_dev(hdev);
4128 }
4129
4130 #ifdef CONFIG_PM
btusb_suspend(struct usb_interface * intf,pm_message_t message)4131 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
4132 {
4133 struct btusb_data *data = usb_get_intfdata(intf);
4134
4135 BT_DBG("intf %p", intf);
4136
4137 /* Don't auto-suspend if there are connections; external suspend calls
4138 * shall never fail.
4139 */
4140 if (PMSG_IS_AUTO(message) && hci_conn_count(data->hdev))
4141 return -EBUSY;
4142
4143 if (data->suspend_count++)
4144 return 0;
4145
4146 spin_lock_irq(&data->txlock);
4147 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
4148 set_bit(BTUSB_SUSPENDING, &data->flags);
4149 spin_unlock_irq(&data->txlock);
4150 } else {
4151 spin_unlock_irq(&data->txlock);
4152 data->suspend_count--;
4153 return -EBUSY;
4154 }
4155
4156 cancel_work_sync(&data->work);
4157
4158 if (data->suspend)
4159 data->suspend(data->hdev);
4160
4161 btusb_stop_traffic(data);
4162 usb_kill_anchored_urbs(&data->tx_anchor);
4163
4164 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) {
4165 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
4166 enable_irq_wake(data->oob_wake_irq);
4167 enable_irq(data->oob_wake_irq);
4168 }
4169
4170 /* For global suspend, Realtek devices lose the loaded fw
4171 * in them. But for autosuspend, firmware should remain.
4172 * Actually, it depends on whether the usb host sends
4173 * set feature (enable wakeup) or not.
4174 */
4175 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) {
4176 if (PMSG_IS_AUTO(message) &&
4177 device_can_wakeup(&data->udev->dev))
4178 data->udev->do_remote_wakeup = 1;
4179 else if (!PMSG_IS_AUTO(message) &&
4180 !device_may_wakeup(&data->udev->dev)) {
4181 data->udev->do_remote_wakeup = 0;
4182 data->udev->reset_resume = 1;
4183 }
4184 }
4185
4186 return 0;
4187 }
4188
play_deferred(struct btusb_data * data)4189 static void play_deferred(struct btusb_data *data)
4190 {
4191 struct urb *urb;
4192 int err;
4193
4194 while ((urb = usb_get_from_anchor(&data->deferred))) {
4195 usb_anchor_urb(urb, &data->tx_anchor);
4196
4197 err = usb_submit_urb(urb, GFP_ATOMIC);
4198 if (err < 0) {
4199 if (err != -EPERM && err != -ENODEV)
4200 BT_ERR("%s urb %p submission failed (%d)",
4201 data->hdev->name, urb, -err);
4202 kfree(urb->setup_packet);
4203 usb_unanchor_urb(urb);
4204 usb_free_urb(urb);
4205 break;
4206 }
4207
4208 data->tx_in_flight++;
4209 usb_free_urb(urb);
4210 }
4211
4212 /* Cleanup the rest deferred urbs. */
4213 while ((urb = usb_get_from_anchor(&data->deferred))) {
4214 kfree(urb->setup_packet);
4215 usb_free_urb(urb);
4216 }
4217 }
4218
btusb_resume(struct usb_interface * intf)4219 static int btusb_resume(struct usb_interface *intf)
4220 {
4221 struct btusb_data *data = usb_get_intfdata(intf);
4222 struct hci_dev *hdev = data->hdev;
4223 int err = 0;
4224
4225 BT_DBG("intf %p", intf);
4226
4227 if (--data->suspend_count)
4228 return 0;
4229
4230 /* Disable only if not already disabled (keep it balanced) */
4231 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
4232 disable_irq(data->oob_wake_irq);
4233 disable_irq_wake(data->oob_wake_irq);
4234 }
4235
4236 if (!test_bit(HCI_RUNNING, &hdev->flags))
4237 goto done;
4238
4239 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
4240 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
4241 if (err < 0) {
4242 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
4243 goto failed;
4244 }
4245 }
4246
4247 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
4248 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
4249 if (err < 0) {
4250 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
4251 goto failed;
4252 }
4253
4254 btusb_submit_bulk_urb(hdev, GFP_NOIO);
4255 }
4256
4257 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
4258 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
4259 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
4260 else
4261 btusb_submit_isoc_urb(hdev, GFP_NOIO);
4262 }
4263
4264 if (data->resume)
4265 data->resume(hdev);
4266
4267 spin_lock_irq(&data->txlock);
4268 play_deferred(data);
4269 clear_bit(BTUSB_SUSPENDING, &data->flags);
4270 spin_unlock_irq(&data->txlock);
4271 schedule_work(&data->work);
4272
4273 return 0;
4274
4275 failed:
4276 usb_scuttle_anchored_urbs(&data->deferred);
4277 done:
4278 spin_lock_irq(&data->txlock);
4279 clear_bit(BTUSB_SUSPENDING, &data->flags);
4280 spin_unlock_irq(&data->txlock);
4281
4282 return err;
4283 }
4284 #endif
4285
4286 #ifdef CONFIG_DEV_COREDUMP
btusb_coredump(struct device * dev)4287 static void btusb_coredump(struct device *dev)
4288 {
4289 struct btusb_data *data = dev_get_drvdata(dev);
4290 struct hci_dev *hdev = data->hdev;
4291
4292 if (hdev->dump.coredump)
4293 hdev->dump.coredump(hdev);
4294 }
4295 #endif
4296
4297 static struct usb_driver btusb_driver = {
4298 .name = "btusb",
4299 .probe = btusb_probe,
4300 .disconnect = btusb_disconnect,
4301 #ifdef CONFIG_PM
4302 .suspend = btusb_suspend,
4303 .resume = btusb_resume,
4304 #endif
4305 .id_table = btusb_table,
4306 .supports_autosuspend = 1,
4307 .disable_hub_initiated_lpm = 1,
4308
4309 #ifdef CONFIG_DEV_COREDUMP
4310 .driver = {
4311 .coredump = btusb_coredump,
4312 },
4313 #endif
4314 };
4315
4316 module_usb_driver(btusb_driver);
4317
4318 module_param(disable_scofix, bool, 0644);
4319 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
4320
4321 module_param(force_scofix, bool, 0644);
4322 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
4323
4324 module_param(enable_autosuspend, bool, 0644);
4325 MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default");
4326
4327 module_param(reset, bool, 0644);
4328 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
4329
4330 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
4331 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
4332 MODULE_VERSION(VERSION);
4333 MODULE_LICENSE("GPL");
4334