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