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