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 #include <net/bluetooth/hci_drv.h>
25
26 #include "btintel.h"
27 #include "btbcm.h"
28 #include "btrtl.h"
29 #include "btmtk.h"
30
31 #define VERSION "0.8"
32
33 static bool disable_scofix;
34 static bool force_scofix;
35 static bool enable_autosuspend = IS_ENABLED(CONFIG_BT_HCIBTUSB_AUTOSUSPEND);
36 static bool enable_poll_sync = IS_ENABLED(CONFIG_BT_HCIBTUSB_POLL_SYNC);
37 static bool reset = true;
38
39 static struct usb_driver btusb_driver;
40
41 #define BTUSB_IGNORE BIT(0)
42 #define BTUSB_DIGIANSWER BIT(1)
43 #define BTUSB_CSR BIT(2)
44 #define BTUSB_SNIFFER BIT(3)
45 #define BTUSB_BCM92035 BIT(4)
46 #define BTUSB_BROKEN_ISOC BIT(5)
47 #define BTUSB_WRONG_SCO_MTU BIT(6)
48 #define BTUSB_ATH3012 BIT(7)
49 #define BTUSB_INTEL_COMBINED BIT(8)
50 #define BTUSB_INTEL_BOOT BIT(9)
51 #define BTUSB_BCM_PATCHRAM BIT(10)
52 #define BTUSB_MARVELL BIT(11)
53 #define BTUSB_SWAVE BIT(12)
54 #define BTUSB_AMP BIT(13)
55 #define BTUSB_QCA_ROME BIT(14)
56 #define BTUSB_BCM_APPLE BIT(15)
57 #define BTUSB_REALTEK BIT(16)
58 #define BTUSB_BCM2045 BIT(17)
59 #define BTUSB_IFNUM_2 BIT(18)
60 #define BTUSB_CW6622 BIT(19)
61 #define BTUSB_MEDIATEK BIT(20)
62 #define BTUSB_WIDEBAND_SPEECH BIT(21)
63 #define BTUSB_INVALID_LE_STATES BIT(22)
64 #define BTUSB_QCA_WCN6855 BIT(23)
65 #define BTUSB_INTEL_BROKEN_SHUTDOWN_LED BIT(24)
66 #define BTUSB_INTEL_BROKEN_INITIAL_NCMD BIT(25)
67 #define BTUSB_INTEL_NO_WBS_SUPPORT BIT(26)
68 #define BTUSB_ACTIONS_SEMI BIT(27)
69 #define BTUSB_BARROT BIT(28)
70
71 static const struct usb_device_id btusb_table[] = {
72 /* Generic Bluetooth USB device */
73 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
74
75 /* Generic Bluetooth AMP device */
76 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP },
77
78 /* Generic Bluetooth USB interface */
79 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) },
80
81 /* Apple-specific (Broadcom) devices */
82 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01),
83 .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 },
84
85 /* MediaTek MT76x0E */
86 { USB_DEVICE(0x0e8d, 0x763f) },
87
88 /* Broadcom SoftSailing reporting vendor specific */
89 { USB_DEVICE(0x0a5c, 0x21e1) },
90
91 /* Apple MacBookPro 7,1 */
92 { USB_DEVICE(0x05ac, 0x8213) },
93
94 /* Apple iMac11,1 */
95 { USB_DEVICE(0x05ac, 0x8215) },
96
97 /* Apple MacBookPro6,2 */
98 { USB_DEVICE(0x05ac, 0x8218) },
99
100 /* Apple MacBookAir3,1, MacBookAir3,2 */
101 { USB_DEVICE(0x05ac, 0x821b) },
102
103 /* Apple MacBookAir4,1 */
104 { USB_DEVICE(0x05ac, 0x821f) },
105
106 /* Apple MacBookPro8,2 */
107 { USB_DEVICE(0x05ac, 0x821a) },
108
109 /* Apple MacMini5,1 */
110 { USB_DEVICE(0x05ac, 0x8281) },
111
112 /* AVM BlueFRITZ! USB v2.0 */
113 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE },
114
115 /* Bluetooth Ultraport Module from IBM */
116 { USB_DEVICE(0x04bf, 0x030a) },
117
118 /* ALPS Modules with non-standard id */
119 { USB_DEVICE(0x044e, 0x3001) },
120 { USB_DEVICE(0x044e, 0x3002) },
121
122 /* Ericsson with non-standard id */
123 { USB_DEVICE(0x0bdb, 0x1002) },
124
125 /* Canyon CN-BTU1 with HID interfaces */
126 { USB_DEVICE(0x0c10, 0x0000) },
127
128 /* Broadcom BCM20702B0 (Dynex/Insignia) */
129 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM },
130
131 /* Broadcom BCM43142A0 (Foxconn/Lenovo) */
132 { USB_VENDOR_AND_INTERFACE_INFO(0x105b, 0xff, 0x01, 0x01),
133 .driver_info = BTUSB_BCM_PATCHRAM },
134
135 /* Broadcom BCM920703 (HTC Vive) */
136 { USB_VENDOR_AND_INTERFACE_INFO(0x0bb4, 0xff, 0x01, 0x01),
137 .driver_info = BTUSB_BCM_PATCHRAM },
138
139 /* Foxconn - Hon Hai */
140 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01),
141 .driver_info = BTUSB_BCM_PATCHRAM },
142
143 /* Lite-On Technology - Broadcom based */
144 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01),
145 .driver_info = BTUSB_BCM_PATCHRAM },
146
147 /* Broadcom devices with vendor specific id */
148 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01),
149 .driver_info = BTUSB_BCM_PATCHRAM },
150
151 /* ASUSTek Computer - Broadcom based */
152 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01),
153 .driver_info = BTUSB_BCM_PATCHRAM },
154
155 /* Belkin F8065bf - Broadcom based */
156 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01),
157 .driver_info = BTUSB_BCM_PATCHRAM },
158
159 /* IMC Networks - Broadcom based */
160 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01),
161 .driver_info = BTUSB_BCM_PATCHRAM },
162
163 /* Dell Computer - Broadcom based */
164 { USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01),
165 .driver_info = BTUSB_BCM_PATCHRAM },
166
167 /* Toshiba Corp - Broadcom based */
168 { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01),
169 .driver_info = BTUSB_BCM_PATCHRAM },
170
171 /* Intel Bluetooth USB Bootloader (RAM module) */
172 { USB_DEVICE(0x8087, 0x0a5a),
173 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
174
175 { } /* Terminating entry */
176 };
177
178 MODULE_DEVICE_TABLE(usb, btusb_table);
179
180 static const struct usb_device_id quirks_table[] = {
181 /* CSR BlueCore devices */
182 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
183
184 /* Broadcom BCM2033 without firmware */
185 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
186
187 /* Broadcom BCM2045 devices */
188 { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 },
189
190 /* Atheros 3011 with sflash firmware */
191 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
192 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
193 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE },
194 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
195 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
196 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
197 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
198
199 /* Atheros AR9285 Malbec with sflash firmware */
200 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
201
202 /* Atheros 3012 with sflash firmware */
203 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
204 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
205 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
206 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
207 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
208 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
209 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
210 { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 },
211 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
212 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
213 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
214 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
215 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
216 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
217 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
218 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
219 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
220 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
221 { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 },
222 { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 },
223 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
224 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
225 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
226 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
227 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
228 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
229 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
230 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
231 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
232 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
233 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
234 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
235 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
236 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 },
237 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
238 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
239 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
240 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
241 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
242 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
243 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
244 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 },
245 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
246 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
247 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
248 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
249 { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 },
250 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
251 { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 },
252 { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 },
253
254 /* Atheros AR5BBU12 with sflash firmware */
255 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
256
257 /* Atheros AR5BBU12 with sflash firmware */
258 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
259 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
260
261 /* QCA ROME chipset */
262 { USB_DEVICE(0x0cf3, 0x535b), .driver_info = BTUSB_QCA_ROME |
263 BTUSB_WIDEBAND_SPEECH },
264 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME |
265 BTUSB_WIDEBAND_SPEECH },
266 { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME |
267 BTUSB_WIDEBAND_SPEECH },
268 { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME |
269 BTUSB_WIDEBAND_SPEECH },
270 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME |
271 BTUSB_WIDEBAND_SPEECH },
272 { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME |
273 BTUSB_WIDEBAND_SPEECH },
274 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME |
275 BTUSB_WIDEBAND_SPEECH },
276 { USB_DEVICE(0x0cf3, 0xe500), .driver_info = BTUSB_QCA_ROME |
277 BTUSB_WIDEBAND_SPEECH },
278 { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME |
279 BTUSB_WIDEBAND_SPEECH },
280 { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME |
281 BTUSB_WIDEBAND_SPEECH },
282 { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME |
283 BTUSB_WIDEBAND_SPEECH },
284 { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME |
285 BTUSB_WIDEBAND_SPEECH },
286 { USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME |
287 BTUSB_WIDEBAND_SPEECH },
288 { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME |
289 BTUSB_WIDEBAND_SPEECH },
290 { USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME |
291 BTUSB_WIDEBAND_SPEECH },
292 { USB_DEVICE(0x04ca, 0x3021), .driver_info = BTUSB_QCA_ROME |
293 BTUSB_WIDEBAND_SPEECH },
294 { USB_DEVICE(0x13d3, 0x3491), .driver_info = BTUSB_QCA_ROME |
295 BTUSB_WIDEBAND_SPEECH },
296 { USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME |
297 BTUSB_WIDEBAND_SPEECH },
298 { USB_DEVICE(0x13d3, 0x3501), .driver_info = BTUSB_QCA_ROME |
299 BTUSB_WIDEBAND_SPEECH },
300
301 /* QCA WCN6855 chipset */
302 { USB_DEVICE(0x0489, 0xe0c7), .driver_info = BTUSB_QCA_WCN6855 |
303 BTUSB_WIDEBAND_SPEECH },
304 { USB_DEVICE(0x0489, 0xe0c9), .driver_info = BTUSB_QCA_WCN6855 |
305 BTUSB_WIDEBAND_SPEECH },
306 { USB_DEVICE(0x0489, 0xe0ca), .driver_info = BTUSB_QCA_WCN6855 |
307 BTUSB_WIDEBAND_SPEECH },
308 { USB_DEVICE(0x0489, 0xe0cb), .driver_info = BTUSB_QCA_WCN6855 |
309 BTUSB_WIDEBAND_SPEECH },
310 { USB_DEVICE(0x0489, 0xe0cc), .driver_info = BTUSB_QCA_WCN6855 |
311 BTUSB_WIDEBAND_SPEECH },
312 { USB_DEVICE(0x0489, 0xe0ce), .driver_info = BTUSB_QCA_WCN6855 |
313 BTUSB_WIDEBAND_SPEECH },
314 { USB_DEVICE(0x0489, 0xe0d0), .driver_info = BTUSB_QCA_WCN6855 |
315 BTUSB_WIDEBAND_SPEECH },
316 { USB_DEVICE(0x0489, 0xe0d6), .driver_info = BTUSB_QCA_WCN6855 |
317 BTUSB_WIDEBAND_SPEECH },
318 { USB_DEVICE(0x0489, 0xe0de), .driver_info = BTUSB_QCA_WCN6855 |
319 BTUSB_WIDEBAND_SPEECH },
320 { USB_DEVICE(0x0489, 0xe0df), .driver_info = BTUSB_QCA_WCN6855 |
321 BTUSB_WIDEBAND_SPEECH },
322 { USB_DEVICE(0x0489, 0xe0e1), .driver_info = BTUSB_QCA_WCN6855 |
323 BTUSB_WIDEBAND_SPEECH },
324 { USB_DEVICE(0x0489, 0xe0e3), .driver_info = BTUSB_QCA_WCN6855 |
325 BTUSB_WIDEBAND_SPEECH },
326 { USB_DEVICE(0x0489, 0xe0ea), .driver_info = BTUSB_QCA_WCN6855 |
327 BTUSB_WIDEBAND_SPEECH },
328 { USB_DEVICE(0x0489, 0xe0ec), .driver_info = BTUSB_QCA_WCN6855 |
329 BTUSB_WIDEBAND_SPEECH },
330 { USB_DEVICE(0x04ca, 0x3022), .driver_info = BTUSB_QCA_WCN6855 |
331 BTUSB_WIDEBAND_SPEECH },
332 { USB_DEVICE(0x04ca, 0x3023), .driver_info = BTUSB_QCA_WCN6855 |
333 BTUSB_WIDEBAND_SPEECH },
334 { USB_DEVICE(0x04ca, 0x3024), .driver_info = BTUSB_QCA_WCN6855 |
335 BTUSB_WIDEBAND_SPEECH },
336 { USB_DEVICE(0x04ca, 0x3a22), .driver_info = BTUSB_QCA_WCN6855 |
337 BTUSB_WIDEBAND_SPEECH },
338 { USB_DEVICE(0x04ca, 0x3a24), .driver_info = BTUSB_QCA_WCN6855 |
339 BTUSB_WIDEBAND_SPEECH },
340 { USB_DEVICE(0x04ca, 0x3a26), .driver_info = BTUSB_QCA_WCN6855 |
341 BTUSB_WIDEBAND_SPEECH },
342 { USB_DEVICE(0x04ca, 0x3a27), .driver_info = BTUSB_QCA_WCN6855 |
343 BTUSB_WIDEBAND_SPEECH },
344 { USB_DEVICE(0x0cf3, 0xe600), .driver_info = BTUSB_QCA_WCN6855 |
345 BTUSB_WIDEBAND_SPEECH },
346 { USB_DEVICE(0x10ab, 0x9108), .driver_info = BTUSB_QCA_WCN6855 |
347 BTUSB_WIDEBAND_SPEECH },
348 { USB_DEVICE(0x10ab, 0x9109), .driver_info = BTUSB_QCA_WCN6855 |
349 BTUSB_WIDEBAND_SPEECH },
350 { USB_DEVICE(0x10ab, 0x9208), .driver_info = BTUSB_QCA_WCN6855 |
351 BTUSB_WIDEBAND_SPEECH },
352 { USB_DEVICE(0x10ab, 0x9209), .driver_info = BTUSB_QCA_WCN6855 |
353 BTUSB_WIDEBAND_SPEECH },
354 { USB_DEVICE(0x10ab, 0x9308), .driver_info = BTUSB_QCA_WCN6855 |
355 BTUSB_WIDEBAND_SPEECH },
356 { USB_DEVICE(0x10ab, 0x9309), .driver_info = BTUSB_QCA_WCN6855 |
357 BTUSB_WIDEBAND_SPEECH },
358 { USB_DEVICE(0x10ab, 0x9408), .driver_info = BTUSB_QCA_WCN6855 |
359 BTUSB_WIDEBAND_SPEECH },
360 { USB_DEVICE(0x10ab, 0x9409), .driver_info = BTUSB_QCA_WCN6855 |
361 BTUSB_WIDEBAND_SPEECH },
362 { USB_DEVICE(0x10ab, 0x9508), .driver_info = BTUSB_QCA_WCN6855 |
363 BTUSB_WIDEBAND_SPEECH },
364 { USB_DEVICE(0x10ab, 0x9509), .driver_info = BTUSB_QCA_WCN6855 |
365 BTUSB_WIDEBAND_SPEECH },
366 { USB_DEVICE(0x10ab, 0x9608), .driver_info = BTUSB_QCA_WCN6855 |
367 BTUSB_WIDEBAND_SPEECH },
368 { USB_DEVICE(0x10ab, 0x9609), .driver_info = BTUSB_QCA_WCN6855 |
369 BTUSB_WIDEBAND_SPEECH },
370 { USB_DEVICE(0x10ab, 0x9f09), .driver_info = BTUSB_QCA_WCN6855 |
371 BTUSB_WIDEBAND_SPEECH },
372 { USB_DEVICE(0x28de, 0x1401), .driver_info = BTUSB_QCA_WCN6855 |
373 BTUSB_WIDEBAND_SPEECH },
374
375 /* QCA WCN785x chipset */
376 { USB_DEVICE(0x0cf3, 0xe700), .driver_info = BTUSB_QCA_WCN6855 |
377 BTUSB_WIDEBAND_SPEECH },
378 { USB_DEVICE(0x0489, 0xe0fc), .driver_info = BTUSB_QCA_WCN6855 |
379 BTUSB_WIDEBAND_SPEECH },
380 { USB_DEVICE(0x0489, 0xe0f3), .driver_info = BTUSB_QCA_WCN6855 |
381 BTUSB_WIDEBAND_SPEECH },
382 { USB_DEVICE(0x0489, 0xe100), .driver_info = BTUSB_QCA_WCN6855 |
383 BTUSB_WIDEBAND_SPEECH },
384 { USB_DEVICE(0x0489, 0xe103), .driver_info = BTUSB_QCA_WCN6855 |
385 BTUSB_WIDEBAND_SPEECH },
386 { USB_DEVICE(0x0489, 0xe10a), .driver_info = BTUSB_QCA_WCN6855 |
387 BTUSB_WIDEBAND_SPEECH },
388 { USB_DEVICE(0x0489, 0xe10d), .driver_info = BTUSB_QCA_WCN6855 |
389 BTUSB_WIDEBAND_SPEECH },
390 { USB_DEVICE(0x0489, 0xe11b), .driver_info = BTUSB_QCA_WCN6855 |
391 BTUSB_WIDEBAND_SPEECH },
392 { USB_DEVICE(0x0489, 0xe11c), .driver_info = BTUSB_QCA_WCN6855 |
393 BTUSB_WIDEBAND_SPEECH },
394 { USB_DEVICE(0x0489, 0xe11f), .driver_info = BTUSB_QCA_WCN6855 |
395 BTUSB_WIDEBAND_SPEECH },
396 { USB_DEVICE(0x0489, 0xe141), .driver_info = BTUSB_QCA_WCN6855 |
397 BTUSB_WIDEBAND_SPEECH },
398 { USB_DEVICE(0x0489, 0xe14a), .driver_info = BTUSB_QCA_WCN6855 |
399 BTUSB_WIDEBAND_SPEECH },
400 { USB_DEVICE(0x0489, 0xe14b), .driver_info = BTUSB_QCA_WCN6855 |
401 BTUSB_WIDEBAND_SPEECH },
402 { USB_DEVICE(0x0489, 0xe14d), .driver_info = BTUSB_QCA_WCN6855 |
403 BTUSB_WIDEBAND_SPEECH },
404 { USB_DEVICE(0x13d3, 0x3623), .driver_info = BTUSB_QCA_WCN6855 |
405 BTUSB_WIDEBAND_SPEECH },
406 { USB_DEVICE(0x13d3, 0x3624), .driver_info = BTUSB_QCA_WCN6855 |
407 BTUSB_WIDEBAND_SPEECH },
408 { USB_DEVICE(0x2c7c, 0x0130), .driver_info = BTUSB_QCA_WCN6855 |
409 BTUSB_WIDEBAND_SPEECH },
410 { USB_DEVICE(0x2c7c, 0x0131), .driver_info = BTUSB_QCA_WCN6855 |
411 BTUSB_WIDEBAND_SPEECH },
412 { USB_DEVICE(0x2c7c, 0x0132), .driver_info = BTUSB_QCA_WCN6855 |
413 BTUSB_WIDEBAND_SPEECH },
414
415 /* Broadcom BCM2035 */
416 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
417 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
418 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
419
420 /* Broadcom BCM2045 */
421 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
422 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
423
424 /* IBM/Lenovo ThinkPad with Broadcom chip */
425 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
426 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
427
428 /* HP laptop with Broadcom chip */
429 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
430
431 /* Dell laptop with Broadcom chip */
432 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
433
434 /* Dell Wireless 370 and 410 devices */
435 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
436 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
437
438 /* Belkin F8T012 and F8T013 devices */
439 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
440 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
441
442 /* Asus WL-BTD202 device */
443 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
444
445 /* Kensington Bluetooth USB adapter */
446 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
447
448 /* RTX Telecom based adapters with buggy SCO support */
449 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
450 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
451
452 /* CONWISE Technology based adapters with buggy SCO support */
453 { USB_DEVICE(0x0e5e, 0x6622),
454 .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622},
455
456 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
457 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE },
458
459 /* Digianswer devices */
460 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
461 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
462
463 /* CSR BlueCore Bluetooth Sniffer */
464 { USB_DEVICE(0x0a12, 0x0002),
465 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
466
467 /* Frontline ComProbe Bluetooth Sniffer */
468 { USB_DEVICE(0x16d3, 0x0002),
469 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
470
471 /* Marvell Bluetooth devices */
472 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
473 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
474 { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL },
475
476 /* Intel Bluetooth devices */
477 { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_COMBINED },
478 { USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_COMBINED },
479 { USB_DEVICE(0x8087, 0x0029), .driver_info = BTUSB_INTEL_COMBINED },
480 { USB_DEVICE(0x8087, 0x0032), .driver_info = BTUSB_INTEL_COMBINED },
481 { USB_DEVICE(0x8087, 0x0033), .driver_info = BTUSB_INTEL_COMBINED },
482 { USB_DEVICE(0x8087, 0x0035), .driver_info = BTUSB_INTEL_COMBINED },
483 { USB_DEVICE(0x8087, 0x0036), .driver_info = BTUSB_INTEL_COMBINED },
484 { USB_DEVICE(0x8087, 0x0037), .driver_info = BTUSB_INTEL_COMBINED },
485 { USB_DEVICE(0x8087, 0x0038), .driver_info = BTUSB_INTEL_COMBINED },
486 { USB_DEVICE(0x8087, 0x0039), .driver_info = BTUSB_INTEL_COMBINED },
487 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
488 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL_COMBINED |
489 BTUSB_INTEL_NO_WBS_SUPPORT |
490 BTUSB_INTEL_BROKEN_INITIAL_NCMD |
491 BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
492 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL_COMBINED |
493 BTUSB_INTEL_NO_WBS_SUPPORT |
494 BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
495 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_COMBINED },
496 { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL_COMBINED |
497 BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
498 { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_COMBINED },
499
500 /* Other Intel Bluetooth devices */
501 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
502 .driver_info = BTUSB_IGNORE },
503
504 /* Realtek 8821CE Bluetooth devices */
505 { USB_DEVICE(0x13d3, 0x3529), .driver_info = BTUSB_REALTEK |
506 BTUSB_WIDEBAND_SPEECH },
507
508 /* Realtek 8822CE Bluetooth devices */
509 { USB_DEVICE(0x0bda, 0xb00c), .driver_info = BTUSB_REALTEK |
510 BTUSB_WIDEBAND_SPEECH },
511 { USB_DEVICE(0x0bda, 0xc822), .driver_info = BTUSB_REALTEK |
512 BTUSB_WIDEBAND_SPEECH },
513
514 /* Realtek 8822CU Bluetooth devices */
515 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK |
516 BTUSB_WIDEBAND_SPEECH },
517
518 /* Realtek 8851BE Bluetooth devices */
519 { USB_DEVICE(0x0bda, 0xb850), .driver_info = BTUSB_REALTEK },
520 { USB_DEVICE(0x13d3, 0x3600), .driver_info = BTUSB_REALTEK },
521 { USB_DEVICE(0x13d3, 0x3601), .driver_info = BTUSB_REALTEK },
522
523 /* Realtek 8851BU Bluetooth devices */
524 { USB_DEVICE(0x3625, 0x010b), .driver_info = BTUSB_REALTEK |
525 BTUSB_WIDEBAND_SPEECH },
526 { USB_DEVICE(0x2001, 0x332a), .driver_info = BTUSB_REALTEK |
527 BTUSB_WIDEBAND_SPEECH },
528
529 /* Realtek 8852AE Bluetooth devices */
530 { USB_DEVICE(0x0bda, 0x2852), .driver_info = BTUSB_REALTEK |
531 BTUSB_WIDEBAND_SPEECH },
532 { USB_DEVICE(0x0bda, 0xc852), .driver_info = BTUSB_REALTEK |
533 BTUSB_WIDEBAND_SPEECH },
534 { USB_DEVICE(0x0bda, 0x385a), .driver_info = BTUSB_REALTEK |
535 BTUSB_WIDEBAND_SPEECH },
536 { USB_DEVICE(0x0bda, 0x4852), .driver_info = BTUSB_REALTEK |
537 BTUSB_WIDEBAND_SPEECH },
538 { USB_DEVICE(0x04c5, 0x165c), .driver_info = BTUSB_REALTEK |
539 BTUSB_WIDEBAND_SPEECH },
540 { USB_DEVICE(0x04ca, 0x4006), .driver_info = BTUSB_REALTEK |
541 BTUSB_WIDEBAND_SPEECH },
542 { USB_DEVICE(0x0cb8, 0xc549), .driver_info = BTUSB_REALTEK |
543 BTUSB_WIDEBAND_SPEECH },
544
545 /* Realtek 8852CE Bluetooth devices */
546 { USB_DEVICE(0x04ca, 0x4007), .driver_info = BTUSB_REALTEK |
547 BTUSB_WIDEBAND_SPEECH },
548 { USB_DEVICE(0x04c5, 0x1675), .driver_info = BTUSB_REALTEK |
549 BTUSB_WIDEBAND_SPEECH },
550 { USB_DEVICE(0x0cb8, 0xc558), .driver_info = BTUSB_REALTEK |
551 BTUSB_WIDEBAND_SPEECH },
552 { USB_DEVICE(0x13d3, 0x3587), .driver_info = BTUSB_REALTEK |
553 BTUSB_WIDEBAND_SPEECH },
554 { USB_DEVICE(0x13d3, 0x3586), .driver_info = BTUSB_REALTEK |
555 BTUSB_WIDEBAND_SPEECH },
556 { USB_DEVICE(0x13d3, 0x3592), .driver_info = BTUSB_REALTEK |
557 BTUSB_WIDEBAND_SPEECH },
558 { USB_DEVICE(0x0489, 0xe122), .driver_info = BTUSB_REALTEK |
559 BTUSB_WIDEBAND_SPEECH },
560
561 /* Realtek 8852BE Bluetooth devices */
562 { USB_DEVICE(0x0cb8, 0xc559), .driver_info = BTUSB_REALTEK |
563 BTUSB_WIDEBAND_SPEECH },
564 { USB_DEVICE(0x0bda, 0x4853), .driver_info = BTUSB_REALTEK |
565 BTUSB_WIDEBAND_SPEECH },
566 { USB_DEVICE(0x0bda, 0x887b), .driver_info = BTUSB_REALTEK |
567 BTUSB_WIDEBAND_SPEECH },
568 { USB_DEVICE(0x0bda, 0xb85b), .driver_info = BTUSB_REALTEK |
569 BTUSB_WIDEBAND_SPEECH },
570 { USB_DEVICE(0x13d3, 0x3570), .driver_info = BTUSB_REALTEK |
571 BTUSB_WIDEBAND_SPEECH },
572 { USB_DEVICE(0x13d3, 0x3571), .driver_info = BTUSB_REALTEK |
573 BTUSB_WIDEBAND_SPEECH },
574 { USB_DEVICE(0x13d3, 0x3572), .driver_info = BTUSB_REALTEK |
575 BTUSB_WIDEBAND_SPEECH },
576 { USB_DEVICE(0x13d3, 0x3591), .driver_info = BTUSB_REALTEK |
577 BTUSB_WIDEBAND_SPEECH },
578 { USB_DEVICE(0x13d3, 0x3618), .driver_info = BTUSB_REALTEK |
579 BTUSB_WIDEBAND_SPEECH },
580 { USB_DEVICE(0x0489, 0xe123), .driver_info = BTUSB_REALTEK |
581 BTUSB_WIDEBAND_SPEECH },
582 { USB_DEVICE(0x0489, 0xe125), .driver_info = BTUSB_REALTEK |
583 BTUSB_WIDEBAND_SPEECH },
584
585 /* Realtek 8852BT/8852BE-VT Bluetooth devices */
586 { USB_DEVICE(0x0bda, 0x8520), .driver_info = BTUSB_REALTEK |
587 BTUSB_WIDEBAND_SPEECH },
588
589 /* Realtek 8922AE Bluetooth devices */
590 { USB_DEVICE(0x0bda, 0x8922), .driver_info = BTUSB_REALTEK |
591 BTUSB_WIDEBAND_SPEECH },
592 { USB_DEVICE(0x13d3, 0x3617), .driver_info = BTUSB_REALTEK |
593 BTUSB_WIDEBAND_SPEECH },
594 { USB_DEVICE(0x13d3, 0x3616), .driver_info = BTUSB_REALTEK |
595 BTUSB_WIDEBAND_SPEECH },
596 { USB_DEVICE(0x0489, 0xe130), .driver_info = BTUSB_REALTEK |
597 BTUSB_WIDEBAND_SPEECH },
598
599 /* Realtek Bluetooth devices */
600 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
601 .driver_info = BTUSB_REALTEK },
602
603 /* MediaTek Bluetooth devices */
604 { USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01),
605 .driver_info = BTUSB_MEDIATEK |
606 BTUSB_WIDEBAND_SPEECH },
607
608 /* Additional MediaTek MT7615E Bluetooth devices */
609 { USB_DEVICE(0x13d3, 0x3560), .driver_info = BTUSB_MEDIATEK},
610
611 /* Additional MediaTek MT7663 Bluetooth devices */
612 { USB_DEVICE(0x043e, 0x310c), .driver_info = BTUSB_MEDIATEK |
613 BTUSB_WIDEBAND_SPEECH },
614 { USB_DEVICE(0x04ca, 0x3801), .driver_info = BTUSB_MEDIATEK |
615 BTUSB_WIDEBAND_SPEECH },
616
617 /* Additional MediaTek MT7668 Bluetooth devices */
618 { USB_DEVICE(0x043e, 0x3109), .driver_info = BTUSB_MEDIATEK |
619 BTUSB_WIDEBAND_SPEECH },
620
621 /* Additional MediaTek MT7920 Bluetooth devices */
622 { USB_DEVICE(0x0489, 0xe134), .driver_info = BTUSB_MEDIATEK |
623 BTUSB_WIDEBAND_SPEECH },
624 { USB_DEVICE(0x13d3, 0x3620), .driver_info = BTUSB_MEDIATEK |
625 BTUSB_WIDEBAND_SPEECH },
626 { USB_DEVICE(0x13d3, 0x3621), .driver_info = BTUSB_MEDIATEK |
627 BTUSB_WIDEBAND_SPEECH },
628 { USB_DEVICE(0x13d3, 0x3622), .driver_info = BTUSB_MEDIATEK |
629 BTUSB_WIDEBAND_SPEECH },
630
631 /* Additional MediaTek MT7921 Bluetooth devices */
632 { USB_DEVICE(0x0489, 0xe0c8), .driver_info = BTUSB_MEDIATEK |
633 BTUSB_WIDEBAND_SPEECH },
634 { USB_DEVICE(0x0489, 0xe0cd), .driver_info = BTUSB_MEDIATEK |
635 BTUSB_WIDEBAND_SPEECH },
636 { USB_DEVICE(0x0489, 0xe0e0), .driver_info = BTUSB_MEDIATEK |
637 BTUSB_WIDEBAND_SPEECH },
638 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK |
639 BTUSB_WIDEBAND_SPEECH },
640 { USB_DEVICE(0x04ca, 0x3802), .driver_info = BTUSB_MEDIATEK |
641 BTUSB_WIDEBAND_SPEECH },
642 { USB_DEVICE(0x0e8d, 0x0608), .driver_info = BTUSB_MEDIATEK |
643 BTUSB_WIDEBAND_SPEECH },
644 { USB_DEVICE(0x13d3, 0x3563), .driver_info = BTUSB_MEDIATEK |
645 BTUSB_WIDEBAND_SPEECH },
646 { USB_DEVICE(0x13d3, 0x3564), .driver_info = BTUSB_MEDIATEK |
647 BTUSB_WIDEBAND_SPEECH },
648 { USB_DEVICE(0x13d3, 0x3567), .driver_info = BTUSB_MEDIATEK |
649 BTUSB_WIDEBAND_SPEECH },
650 { USB_DEVICE(0x13d3, 0x3576), .driver_info = BTUSB_MEDIATEK |
651 BTUSB_WIDEBAND_SPEECH },
652 { USB_DEVICE(0x13d3, 0x3578), .driver_info = BTUSB_MEDIATEK |
653 BTUSB_WIDEBAND_SPEECH },
654 { USB_DEVICE(0x13d3, 0x3583), .driver_info = BTUSB_MEDIATEK |
655 BTUSB_WIDEBAND_SPEECH },
656 { USB_DEVICE(0x13d3, 0x3606), .driver_info = BTUSB_MEDIATEK |
657 BTUSB_WIDEBAND_SPEECH },
658
659 /* MediaTek MT7922 Bluetooth devices */
660 { USB_DEVICE(0x13d3, 0x3585), .driver_info = BTUSB_MEDIATEK |
661 BTUSB_WIDEBAND_SPEECH },
662 { USB_DEVICE(0x13d3, 0x3610), .driver_info = BTUSB_MEDIATEK |
663 BTUSB_WIDEBAND_SPEECH },
664
665 /* MediaTek MT7922A Bluetooth devices */
666 { USB_DEVICE(0x0489, 0xe0d8), .driver_info = BTUSB_MEDIATEK |
667 BTUSB_WIDEBAND_SPEECH },
668 { USB_DEVICE(0x0489, 0xe0d9), .driver_info = BTUSB_MEDIATEK |
669 BTUSB_WIDEBAND_SPEECH },
670 { USB_DEVICE(0x0489, 0xe0e2), .driver_info = BTUSB_MEDIATEK |
671 BTUSB_WIDEBAND_SPEECH },
672 { USB_DEVICE(0x0489, 0xe0e4), .driver_info = BTUSB_MEDIATEK |
673 BTUSB_WIDEBAND_SPEECH },
674 { USB_DEVICE(0x0489, 0xe0f1), .driver_info = BTUSB_MEDIATEK |
675 BTUSB_WIDEBAND_SPEECH },
676 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK |
677 BTUSB_WIDEBAND_SPEECH },
678 { USB_DEVICE(0x0489, 0xe0f5), .driver_info = BTUSB_MEDIATEK |
679 BTUSB_WIDEBAND_SPEECH },
680 { USB_DEVICE(0x0489, 0xe0f6), .driver_info = BTUSB_MEDIATEK |
681 BTUSB_WIDEBAND_SPEECH },
682 { USB_DEVICE(0x0489, 0xe102), .driver_info = BTUSB_MEDIATEK |
683 BTUSB_WIDEBAND_SPEECH },
684 { USB_DEVICE(0x0489, 0xe152), .driver_info = BTUSB_MEDIATEK |
685 BTUSB_WIDEBAND_SPEECH },
686 { USB_DEVICE(0x0489, 0xe153), .driver_info = BTUSB_MEDIATEK |
687 BTUSB_WIDEBAND_SPEECH },
688 { USB_DEVICE(0x04ca, 0x3804), .driver_info = BTUSB_MEDIATEK |
689 BTUSB_WIDEBAND_SPEECH },
690 { USB_DEVICE(0x04ca, 0x38e4), .driver_info = BTUSB_MEDIATEK |
691 BTUSB_WIDEBAND_SPEECH },
692 { USB_DEVICE(0x13d3, 0x3568), .driver_info = BTUSB_MEDIATEK |
693 BTUSB_WIDEBAND_SPEECH },
694 { USB_DEVICE(0x13d3, 0x3584), .driver_info = BTUSB_MEDIATEK |
695 BTUSB_WIDEBAND_SPEECH },
696 { USB_DEVICE(0x13d3, 0x3605), .driver_info = BTUSB_MEDIATEK |
697 BTUSB_WIDEBAND_SPEECH },
698 { USB_DEVICE(0x13d3, 0x3607), .driver_info = BTUSB_MEDIATEK |
699 BTUSB_WIDEBAND_SPEECH },
700 { USB_DEVICE(0x13d3, 0x3614), .driver_info = BTUSB_MEDIATEK |
701 BTUSB_WIDEBAND_SPEECH },
702 { USB_DEVICE(0x13d3, 0x3615), .driver_info = BTUSB_MEDIATEK |
703 BTUSB_WIDEBAND_SPEECH },
704 { USB_DEVICE(0x13d3, 0x3633), .driver_info = BTUSB_MEDIATEK |
705 BTUSB_WIDEBAND_SPEECH },
706 { USB_DEVICE(0x35f5, 0x7922), .driver_info = BTUSB_MEDIATEK |
707 BTUSB_WIDEBAND_SPEECH },
708
709 /* Additional MediaTek MT7925 Bluetooth devices */
710 { USB_DEVICE(0x0489, 0xe111), .driver_info = BTUSB_MEDIATEK |
711 BTUSB_WIDEBAND_SPEECH },
712 { USB_DEVICE(0x0489, 0xe113), .driver_info = BTUSB_MEDIATEK |
713 BTUSB_WIDEBAND_SPEECH },
714 { USB_DEVICE(0x0489, 0xe118), .driver_info = BTUSB_MEDIATEK |
715 BTUSB_WIDEBAND_SPEECH },
716 { USB_DEVICE(0x0489, 0xe11e), .driver_info = BTUSB_MEDIATEK |
717 BTUSB_WIDEBAND_SPEECH },
718 { USB_DEVICE(0x0489, 0xe124), .driver_info = BTUSB_MEDIATEK |
719 BTUSB_WIDEBAND_SPEECH },
720 { USB_DEVICE(0x0489, 0xe139), .driver_info = BTUSB_MEDIATEK |
721 BTUSB_WIDEBAND_SPEECH },
722 { USB_DEVICE(0x0489, 0xe14e), .driver_info = BTUSB_MEDIATEK |
723 BTUSB_WIDEBAND_SPEECH },
724 { USB_DEVICE(0x0489, 0xe14f), .driver_info = BTUSB_MEDIATEK |
725 BTUSB_WIDEBAND_SPEECH },
726 { USB_DEVICE(0x0489, 0xe150), .driver_info = BTUSB_MEDIATEK |
727 BTUSB_WIDEBAND_SPEECH },
728 { USB_DEVICE(0x0489, 0xe151), .driver_info = BTUSB_MEDIATEK |
729 BTUSB_WIDEBAND_SPEECH },
730 { USB_DEVICE(0x13d3, 0x3602), .driver_info = BTUSB_MEDIATEK |
731 BTUSB_WIDEBAND_SPEECH },
732 { USB_DEVICE(0x13d3, 0x3603), .driver_info = BTUSB_MEDIATEK |
733 BTUSB_WIDEBAND_SPEECH },
734 { USB_DEVICE(0x13d3, 0x3604), .driver_info = BTUSB_MEDIATEK |
735 BTUSB_WIDEBAND_SPEECH },
736 { USB_DEVICE(0x13d3, 0x3608), .driver_info = BTUSB_MEDIATEK |
737 BTUSB_WIDEBAND_SPEECH },
738 { USB_DEVICE(0x13d3, 0x3613), .driver_info = BTUSB_MEDIATEK |
739 BTUSB_WIDEBAND_SPEECH },
740 { USB_DEVICE(0x13d3, 0x3627), .driver_info = BTUSB_MEDIATEK |
741 BTUSB_WIDEBAND_SPEECH },
742 { USB_DEVICE(0x13d3, 0x3628), .driver_info = BTUSB_MEDIATEK |
743 BTUSB_WIDEBAND_SPEECH },
744 { USB_DEVICE(0x13d3, 0x3630), .driver_info = BTUSB_MEDIATEK |
745 BTUSB_WIDEBAND_SPEECH },
746 { USB_DEVICE(0x2c7c, 0x7009), .driver_info = BTUSB_MEDIATEK |
747 BTUSB_WIDEBAND_SPEECH },
748
749 /* Additional Realtek 8723AE Bluetooth devices */
750 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
751 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
752
753 /* Additional Realtek 8723BE Bluetooth devices */
754 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
755 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
756 { USB_DEVICE(0x04f2, 0xb49f), .driver_info = BTUSB_REALTEK },
757 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
758 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
759 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
760 { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK },
761
762 /* Additional Realtek 8723BU Bluetooth devices */
763 { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK },
764
765 /* Additional Realtek 8723DE Bluetooth devices */
766 { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK },
767 { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK },
768
769 /* Additional Realtek 8761BUV Bluetooth devices */
770 { USB_DEVICE(0x2357, 0x0604), .driver_info = BTUSB_REALTEK |
771 BTUSB_WIDEBAND_SPEECH },
772 { USB_DEVICE(0x0b05, 0x190e), .driver_info = BTUSB_REALTEK |
773 BTUSB_WIDEBAND_SPEECH },
774 { USB_DEVICE(0x2550, 0x8761), .driver_info = BTUSB_REALTEK |
775 BTUSB_WIDEBAND_SPEECH },
776 { USB_DEVICE(0x0bda, 0x8771), .driver_info = BTUSB_REALTEK |
777 BTUSB_WIDEBAND_SPEECH },
778 { USB_DEVICE(0x6655, 0x8771), .driver_info = BTUSB_REALTEK |
779 BTUSB_WIDEBAND_SPEECH },
780 { USB_DEVICE(0x7392, 0xc611), .driver_info = BTUSB_REALTEK |
781 BTUSB_WIDEBAND_SPEECH },
782 { USB_DEVICE(0x2b89, 0x8761), .driver_info = BTUSB_REALTEK |
783 BTUSB_WIDEBAND_SPEECH },
784
785 /* Additional Realtek 8821AE Bluetooth devices */
786 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
787 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
788 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
789 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
790 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
791
792 /* Additional Realtek 8822BE Bluetooth devices */
793 { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK },
794 { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK },
795
796 /* Additional Realtek 8822CE Bluetooth devices */
797 { USB_DEVICE(0x04ca, 0x4005), .driver_info = BTUSB_REALTEK |
798 BTUSB_WIDEBAND_SPEECH },
799 { USB_DEVICE(0x04c5, 0x161f), .driver_info = BTUSB_REALTEK |
800 BTUSB_WIDEBAND_SPEECH },
801 { USB_DEVICE(0x0b05, 0x18ef), .driver_info = BTUSB_REALTEK |
802 BTUSB_WIDEBAND_SPEECH },
803 { USB_DEVICE(0x13d3, 0x3548), .driver_info = BTUSB_REALTEK |
804 BTUSB_WIDEBAND_SPEECH },
805 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK |
806 BTUSB_WIDEBAND_SPEECH },
807 { USB_DEVICE(0x13d3, 0x3553), .driver_info = BTUSB_REALTEK |
808 BTUSB_WIDEBAND_SPEECH },
809 { USB_DEVICE(0x13d3, 0x3555), .driver_info = BTUSB_REALTEK |
810 BTUSB_WIDEBAND_SPEECH },
811 { USB_DEVICE(0x2ff8, 0x3051), .driver_info = BTUSB_REALTEK |
812 BTUSB_WIDEBAND_SPEECH },
813 { USB_DEVICE(0x1358, 0xc123), .driver_info = BTUSB_REALTEK |
814 BTUSB_WIDEBAND_SPEECH },
815 { USB_DEVICE(0x0bda, 0xc123), .driver_info = BTUSB_REALTEK |
816 BTUSB_WIDEBAND_SPEECH },
817 { USB_DEVICE(0x0cb5, 0xc547), .driver_info = BTUSB_REALTEK |
818 BTUSB_WIDEBAND_SPEECH },
819
820 /* Barrot Technology Bluetooth devices */
821 { USB_DEVICE(0x33fa, 0x0010), .driver_info = BTUSB_BARROT },
822 { USB_DEVICE(0x33fa, 0x0012), .driver_info = BTUSB_BARROT },
823
824 /* Actions Semiconductor ATS2851 based devices */
825 { USB_DEVICE(0x10d7, 0xb012), .driver_info = BTUSB_ACTIONS_SEMI },
826
827 /* Silicon Wave based devices */
828 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE },
829
830 { } /* Terminating entry */
831 };
832
833 /* The Bluetooth USB module build into some devices needs to be reset on resume,
834 * this is a problem with the platform (likely shutting off all power) not with
835 * the module itself. So we use a DMI list to match known broken platforms.
836 */
837 static const struct dmi_system_id btusb_needs_reset_resume_table[] = {
838 {
839 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */
840 .matches = {
841 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
842 DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"),
843 },
844 },
845 {
846 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */
847 .matches = {
848 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
849 DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"),
850 },
851 },
852 {
853 /* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */
854 .matches = {
855 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
856 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"),
857 },
858 },
859 {}
860 };
861
862 struct qca_dump_info {
863 /* fields for dump collection */
864 u16 id_vendor;
865 u16 id_product;
866 u32 fw_version;
867 u32 controller_id;
868 u32 ram_dump_size;
869 u16 ram_dump_seqno;
870 };
871
872 #define BTUSB_MAX_ISOC_FRAMES 10
873
874 #define BTUSB_INTR_RUNNING 0
875 #define BTUSB_BULK_RUNNING 1
876 #define BTUSB_ISOC_RUNNING 2
877 #define BTUSB_SUSPENDING 3
878 #define BTUSB_DID_ISO_RESUME 4
879 #define BTUSB_BOOTLOADER 5
880 #define BTUSB_DOWNLOADING 6
881 #define BTUSB_FIRMWARE_LOADED 7
882 #define BTUSB_FIRMWARE_FAILED 8
883 #define BTUSB_BOOTING 9
884 #define BTUSB_DIAG_RUNNING 10
885 #define BTUSB_OOB_WAKE_ENABLED 11
886 #define BTUSB_HW_RESET_ACTIVE 12
887 #define BTUSB_TX_WAIT_VND_EVT 13
888 #define BTUSB_WAKEUP_AUTOSUSPEND 14
889 #define BTUSB_USE_ALT3_FOR_WBS 15
890 #define BTUSB_ALT6_CONTINUOUS_TX 16
891 #define BTUSB_HW_SSR_ACTIVE 17
892
893 struct btusb_data {
894 struct hci_dev *hdev;
895 struct usb_device *udev;
896 struct usb_interface *intf;
897 struct usb_interface *isoc;
898 struct usb_interface *diag;
899 unsigned isoc_ifnum;
900
901 unsigned long flags;
902
903 bool poll_sync;
904 int intr_interval;
905 struct work_struct work;
906 struct work_struct waker;
907 struct delayed_work rx_work;
908
909 struct sk_buff_head acl_q;
910
911 struct usb_anchor deferred;
912 struct usb_anchor tx_anchor;
913 int tx_in_flight;
914 spinlock_t txlock;
915
916 struct usb_anchor intr_anchor;
917 struct usb_anchor bulk_anchor;
918 struct usb_anchor isoc_anchor;
919 struct usb_anchor diag_anchor;
920 struct usb_anchor ctrl_anchor;
921 spinlock_t rxlock;
922
923 struct sk_buff *evt_skb;
924 struct sk_buff *acl_skb;
925 struct sk_buff *sco_skb;
926
927 struct usb_endpoint_descriptor *intr_ep;
928 struct usb_endpoint_descriptor *bulk_tx_ep;
929 struct usb_endpoint_descriptor *bulk_rx_ep;
930 struct usb_endpoint_descriptor *isoc_tx_ep;
931 struct usb_endpoint_descriptor *isoc_rx_ep;
932 struct usb_endpoint_descriptor *diag_tx_ep;
933 struct usb_endpoint_descriptor *diag_rx_ep;
934
935 struct gpio_desc *reset_gpio;
936
937 __u8 cmdreq_type;
938 __u8 cmdreq;
939
940 unsigned int sco_num;
941 unsigned int air_mode;
942 bool usb_alt6_packet_flow;
943 int isoc_altsetting;
944 int suspend_count;
945
946 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
947 int (*recv_acl)(struct hci_dev *hdev, struct sk_buff *skb);
948 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
949
950 int (*setup_on_usb)(struct hci_dev *hdev);
951
952 int (*suspend)(struct hci_dev *hdev);
953 int (*resume)(struct hci_dev *hdev);
954 int (*disconnect)(struct hci_dev *hdev);
955
956 int oob_wake_irq; /* irq for out-of-band wake-on-bt */
957
958 struct qca_dump_info qca_dump;
959 };
960
btusb_reset(struct hci_dev * hdev)961 static void btusb_reset(struct hci_dev *hdev)
962 {
963 struct btusb_data *data;
964 int err;
965
966 data = hci_get_drvdata(hdev);
967 /* This is not an unbalanced PM reference since the device will reset */
968 err = usb_autopm_get_interface(data->intf);
969 if (err) {
970 bt_dev_err(hdev, "Failed usb_autopm_get_interface: %d", err);
971 return;
972 }
973
974 bt_dev_err(hdev, "Resetting usb device.");
975 usb_queue_reset_device(data->intf);
976 }
977
btusb_intel_reset(struct hci_dev * hdev)978 static void btusb_intel_reset(struct hci_dev *hdev)
979 {
980 struct btusb_data *data = hci_get_drvdata(hdev);
981 struct gpio_desc *reset_gpio = data->reset_gpio;
982 struct btintel_data *intel_data = hci_get_priv(hdev);
983
984 if (intel_data->acpi_reset_method) {
985 if (test_and_set_bit(INTEL_ACPI_RESET_ACTIVE, intel_data->flags)) {
986 bt_dev_err(hdev, "acpi: last reset failed ? Not resetting again");
987 return;
988 }
989
990 bt_dev_err(hdev, "Initiating acpi reset method");
991 /* If ACPI reset method fails, lets try with legacy GPIO
992 * toggling
993 */
994 if (!intel_data->acpi_reset_method(hdev)) {
995 return;
996 }
997 }
998
999 if (!reset_gpio) {
1000 btusb_reset(hdev);
1001 return;
1002 }
1003
1004 /*
1005 * Toggle the hard reset line if the platform provides one. The reset
1006 * is going to yank the device off the USB and then replug. So doing
1007 * once is enough. The cleanup is handled correctly on the way out
1008 * (standard USB disconnect), and the new device is detected cleanly
1009 * and bound to the driver again like it should be.
1010 */
1011 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
1012 bt_dev_err(hdev, "last reset failed? Not resetting again");
1013 return;
1014 }
1015
1016 bt_dev_err(hdev, "Initiating HW reset via gpio");
1017 gpiod_set_value_cansleep(reset_gpio, 1);
1018 msleep(100);
1019 gpiod_set_value_cansleep(reset_gpio, 0);
1020 }
1021
1022 #define RTK_DEVCOREDUMP_CODE_MEMDUMP 0x01
1023 #define RTK_DEVCOREDUMP_CODE_HW_ERR 0x02
1024 #define RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT 0x03
1025
1026 #define RTK_SUB_EVENT_CODE_COREDUMP 0x34
1027
1028 struct rtk_dev_coredump_hdr {
1029 u8 type;
1030 u8 code;
1031 u8 reserved[2];
1032 } __packed;
1033
btusb_rtl_alloc_devcoredump(struct hci_dev * hdev,struct rtk_dev_coredump_hdr * hdr,u8 * buf,u32 len)1034 static inline void btusb_rtl_alloc_devcoredump(struct hci_dev *hdev,
1035 struct rtk_dev_coredump_hdr *hdr, u8 *buf, u32 len)
1036 {
1037 struct sk_buff *skb;
1038
1039 skb = alloc_skb(len + sizeof(*hdr), GFP_ATOMIC);
1040 if (!skb)
1041 return;
1042
1043 skb_put_data(skb, hdr, sizeof(*hdr));
1044 if (len)
1045 skb_put_data(skb, buf, len);
1046
1047 if (!hci_devcd_init(hdev, skb->len)) {
1048 hci_devcd_append(hdev, skb);
1049 hci_devcd_complete(hdev);
1050 } else {
1051 bt_dev_err(hdev, "RTL: Failed to generate devcoredump");
1052 kfree_skb(skb);
1053 }
1054 }
1055
btusb_rtl_reset(struct hci_dev * hdev)1056 static void btusb_rtl_reset(struct hci_dev *hdev)
1057 {
1058 struct btusb_data *data = hci_get_drvdata(hdev);
1059 struct gpio_desc *reset_gpio = data->reset_gpio;
1060 struct rtk_dev_coredump_hdr hdr = {
1061 .type = RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT,
1062 };
1063
1064 btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0);
1065
1066 if (!reset_gpio) {
1067 btusb_reset(hdev);
1068 return;
1069 }
1070
1071 /* Toggle the hard reset line. The Realtek device is going to
1072 * yank itself off the USB and then replug. The cleanup is handled
1073 * correctly on the way out (standard USB disconnect), and the new
1074 * device is detected cleanly and bound to the driver again like
1075 * it should be.
1076 */
1077 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
1078 bt_dev_err(hdev, "last reset failed? Not resetting again");
1079 return;
1080 }
1081
1082 bt_dev_err(hdev, "Reset Realtek device via gpio");
1083 gpiod_set_value_cansleep(reset_gpio, 1);
1084 msleep(200);
1085 gpiod_set_value_cansleep(reset_gpio, 0);
1086 }
1087
btusb_rtl_hw_error(struct hci_dev * hdev,u8 code)1088 static void btusb_rtl_hw_error(struct hci_dev *hdev, u8 code)
1089 {
1090 struct rtk_dev_coredump_hdr hdr = {
1091 .type = RTK_DEVCOREDUMP_CODE_HW_ERR,
1092 .code = code,
1093 };
1094
1095 bt_dev_err(hdev, "RTL: hw err, trigger devcoredump (%d)", code);
1096
1097 btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0);
1098 }
1099
btusb_qca_reset(struct hci_dev * hdev)1100 static void btusb_qca_reset(struct hci_dev *hdev)
1101 {
1102 struct btusb_data *data = hci_get_drvdata(hdev);
1103 struct gpio_desc *reset_gpio = data->reset_gpio;
1104
1105 if (test_bit(BTUSB_HW_SSR_ACTIVE, &data->flags)) {
1106 bt_dev_info(hdev, "Ramdump in progress, defer reset");
1107 return;
1108 }
1109
1110 if (reset_gpio) {
1111 bt_dev_err(hdev, "Reset qca device via bt_en gpio");
1112
1113 /* Toggle the hard reset line. The qca bt device is going to
1114 * yank itself off the USB and then replug. The cleanup is handled
1115 * correctly on the way out (standard USB disconnect), and the new
1116 * device is detected cleanly and bound to the driver again like
1117 * it should be.
1118 */
1119 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
1120 bt_dev_err(hdev, "last reset failed? Not resetting again");
1121 return;
1122 }
1123
1124 gpiod_set_value_cansleep(reset_gpio, 0);
1125 msleep(200);
1126 gpiod_set_value_cansleep(reset_gpio, 1);
1127
1128 return;
1129 }
1130
1131 btusb_reset(hdev);
1132 }
1133
btusb_free_frags(struct btusb_data * data)1134 static inline void btusb_free_frags(struct btusb_data *data)
1135 {
1136 unsigned long flags;
1137
1138 spin_lock_irqsave(&data->rxlock, flags);
1139
1140 dev_kfree_skb_irq(data->evt_skb);
1141 data->evt_skb = NULL;
1142
1143 dev_kfree_skb_irq(data->acl_skb);
1144 data->acl_skb = NULL;
1145
1146 dev_kfree_skb_irq(data->sco_skb);
1147 data->sco_skb = NULL;
1148
1149 spin_unlock_irqrestore(&data->rxlock, flags);
1150 }
1151
btusb_recv_event(struct btusb_data * data,struct sk_buff * skb)1152 static int btusb_recv_event(struct btusb_data *data, struct sk_buff *skb)
1153 {
1154 if (data->intr_interval) {
1155 /* Trigger dequeue immediately if an event is received */
1156 schedule_delayed_work(&data->rx_work, 0);
1157 }
1158
1159 return data->recv_event(data->hdev, skb);
1160 }
1161
btusb_recv_intr(struct btusb_data * data,void * buffer,int count)1162 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
1163 {
1164 struct sk_buff *skb;
1165 unsigned long flags;
1166 int err = 0;
1167
1168 spin_lock_irqsave(&data->rxlock, flags);
1169 skb = data->evt_skb;
1170
1171 while (count) {
1172 int len;
1173
1174 if (!skb) {
1175 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
1176 if (!skb) {
1177 err = -ENOMEM;
1178 break;
1179 }
1180
1181 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
1182 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE;
1183 }
1184
1185 len = min_t(uint, hci_skb_expect(skb), count);
1186 skb_put_data(skb, buffer, len);
1187
1188 count -= len;
1189 buffer += len;
1190 hci_skb_expect(skb) -= len;
1191
1192 if (skb->len == HCI_EVENT_HDR_SIZE) {
1193 /* Complete event header */
1194 hci_skb_expect(skb) = hci_event_hdr(skb)->plen;
1195
1196 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
1197 kfree_skb(skb);
1198 skb = NULL;
1199
1200 err = -EILSEQ;
1201 break;
1202 }
1203 }
1204
1205 if (!hci_skb_expect(skb)) {
1206 /* Each chunk should correspond to at least 1 or more
1207 * events so if there are still bytes left that doesn't
1208 * constitute a new event this is likely a bug in the
1209 * controller.
1210 */
1211 if (count && count < HCI_EVENT_HDR_SIZE) {
1212 bt_dev_warn(data->hdev,
1213 "Unexpected continuation: %d bytes",
1214 count);
1215 count = 0;
1216 }
1217
1218 /* Complete frame */
1219 btusb_recv_event(data, skb);
1220 skb = NULL;
1221 }
1222 }
1223
1224 data->evt_skb = skb;
1225 spin_unlock_irqrestore(&data->rxlock, flags);
1226
1227 return err;
1228 }
1229
btusb_recv_acl(struct btusb_data * data,struct sk_buff * skb)1230 static int btusb_recv_acl(struct btusb_data *data, struct sk_buff *skb)
1231 {
1232 /* Only queue ACL packet if intr_interval is set as it means
1233 * force_poll_sync has been enabled.
1234 */
1235 if (!data->intr_interval)
1236 return data->recv_acl(data->hdev, skb);
1237
1238 skb_queue_tail(&data->acl_q, skb);
1239 schedule_delayed_work(&data->rx_work, data->intr_interval);
1240
1241 return 0;
1242 }
1243
btusb_recv_bulk(struct btusb_data * data,void * buffer,int count)1244 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
1245 {
1246 struct sk_buff *skb;
1247 unsigned long flags;
1248 int err = 0;
1249
1250 spin_lock_irqsave(&data->rxlock, flags);
1251 skb = data->acl_skb;
1252
1253 while (count) {
1254 int len;
1255
1256 if (!skb) {
1257 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
1258 if (!skb) {
1259 err = -ENOMEM;
1260 break;
1261 }
1262
1263 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT;
1264 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE;
1265 }
1266
1267 len = min_t(uint, hci_skb_expect(skb), count);
1268 skb_put_data(skb, buffer, len);
1269
1270 count -= len;
1271 buffer += len;
1272 hci_skb_expect(skb) -= len;
1273
1274 if (skb->len == HCI_ACL_HDR_SIZE) {
1275 __le16 dlen = hci_acl_hdr(skb)->dlen;
1276
1277 /* Complete ACL header */
1278 hci_skb_expect(skb) = __le16_to_cpu(dlen);
1279
1280 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
1281 kfree_skb(skb);
1282 skb = NULL;
1283
1284 err = -EILSEQ;
1285 break;
1286 }
1287 }
1288
1289 if (!hci_skb_expect(skb)) {
1290 /* Complete frame */
1291 btusb_recv_acl(data, skb);
1292 skb = NULL;
1293 }
1294 }
1295
1296 data->acl_skb = skb;
1297 spin_unlock_irqrestore(&data->rxlock, flags);
1298
1299 return err;
1300 }
1301
btusb_validate_sco_handle(struct hci_dev * hdev,struct hci_sco_hdr * hdr)1302 static bool btusb_validate_sco_handle(struct hci_dev *hdev,
1303 struct hci_sco_hdr *hdr)
1304 {
1305 __u16 handle;
1306
1307 if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL))
1308 // Can't validate, userspace controls everything.
1309 return true;
1310
1311 /*
1312 * USB isochronous transfers are not designed to be reliable and may
1313 * lose fragments. When this happens, the next first fragment
1314 * encountered might actually be a continuation fragment.
1315 * Validate the handle to detect it and drop it, or else the upper
1316 * layer will get garbage for a while.
1317 */
1318
1319 handle = hci_handle(__le16_to_cpu(hdr->handle));
1320
1321 switch (hci_conn_lookup_type(hdev, handle)) {
1322 case SCO_LINK:
1323 case ESCO_LINK:
1324 return true;
1325 default:
1326 return false;
1327 }
1328 }
1329
btusb_recv_isoc(struct btusb_data * data,void * buffer,int count)1330 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
1331 {
1332 struct sk_buff *skb;
1333 unsigned long flags;
1334 int err = 0;
1335
1336 spin_lock_irqsave(&data->rxlock, flags);
1337 skb = data->sco_skb;
1338
1339 while (count) {
1340 int len;
1341
1342 if (!skb) {
1343 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
1344 if (!skb) {
1345 err = -ENOMEM;
1346 break;
1347 }
1348
1349 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT;
1350 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE;
1351 }
1352
1353 len = min_t(uint, hci_skb_expect(skb), count);
1354 skb_put_data(skb, buffer, len);
1355
1356 count -= len;
1357 buffer += len;
1358 hci_skb_expect(skb) -= len;
1359
1360 if (skb->len == HCI_SCO_HDR_SIZE) {
1361 /* Complete SCO header */
1362 struct hci_sco_hdr *hdr = hci_sco_hdr(skb);
1363
1364 hci_skb_expect(skb) = hdr->dlen;
1365
1366 if (skb_tailroom(skb) < hci_skb_expect(skb) ||
1367 !btusb_validate_sco_handle(data->hdev, hdr)) {
1368 kfree_skb(skb);
1369 skb = NULL;
1370
1371 err = -EILSEQ;
1372 break;
1373 }
1374 }
1375
1376 if (!hci_skb_expect(skb)) {
1377 /* Complete frame */
1378 hci_recv_frame(data->hdev, skb);
1379 skb = NULL;
1380 }
1381 }
1382
1383 data->sco_skb = skb;
1384 spin_unlock_irqrestore(&data->rxlock, flags);
1385
1386 return err;
1387 }
1388
btusb_intr_complete(struct urb * urb)1389 static void btusb_intr_complete(struct urb *urb)
1390 {
1391 struct hci_dev *hdev = urb->context;
1392 struct btusb_data *data = hci_get_drvdata(hdev);
1393 int err;
1394
1395 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1396 urb->actual_length);
1397
1398 if (!test_bit(HCI_RUNNING, &hdev->flags))
1399 return;
1400
1401 if (urb->status == 0) {
1402 hdev->stat.byte_rx += urb->actual_length;
1403
1404 if (btusb_recv_intr(data, urb->transfer_buffer,
1405 urb->actual_length) < 0) {
1406 bt_dev_err(hdev, "corrupted event packet");
1407 hdev->stat.err_rx++;
1408 }
1409 } else if (urb->status == -ENOENT) {
1410 /* Avoid suspend failed when usb_kill_urb */
1411 return;
1412 }
1413
1414 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
1415 return;
1416
1417 usb_mark_last_busy(data->udev);
1418 usb_anchor_urb(urb, &data->intr_anchor);
1419
1420 err = usb_submit_urb(urb, GFP_ATOMIC);
1421 if (err < 0) {
1422 /* -EPERM: urb is being killed;
1423 * -ENODEV: device got disconnected
1424 */
1425 if (err != -EPERM && err != -ENODEV)
1426 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1427 urb, -err);
1428 if (err != -EPERM)
1429 hci_cmd_sync_cancel(hdev, -err);
1430 usb_unanchor_urb(urb);
1431 }
1432 }
1433
btusb_submit_intr_urb(struct hci_dev * hdev,gfp_t mem_flags)1434 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
1435 {
1436 struct btusb_data *data = hci_get_drvdata(hdev);
1437 struct urb *urb;
1438 unsigned char *buf;
1439 unsigned int pipe;
1440 int err, size;
1441
1442 BT_DBG("%s", hdev->name);
1443
1444 if (!data->intr_ep)
1445 return -ENODEV;
1446
1447 urb = usb_alloc_urb(0, mem_flags);
1448 if (!urb)
1449 return -ENOMEM;
1450
1451 if (le16_to_cpu(data->udev->descriptor.idVendor) == 0x0a12 &&
1452 le16_to_cpu(data->udev->descriptor.idProduct) == 0x0001)
1453 /* Fake CSR devices don't seem to support sort-transter */
1454 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
1455 else
1456 /* Use maximum HCI Event size so the USB stack handles
1457 * ZPL/short-transfer automatically.
1458 */
1459 size = HCI_MAX_EVENT_SIZE;
1460
1461 buf = kmalloc(size, mem_flags);
1462 if (!buf) {
1463 usb_free_urb(urb);
1464 return -ENOMEM;
1465 }
1466
1467 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
1468
1469 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
1470 btusb_intr_complete, hdev, data->intr_ep->bInterval);
1471
1472 urb->transfer_flags |= URB_FREE_BUFFER;
1473
1474 usb_anchor_urb(urb, &data->intr_anchor);
1475
1476 err = usb_submit_urb(urb, mem_flags);
1477 if (err < 0) {
1478 if (err != -EPERM && err != -ENODEV)
1479 bt_dev_err(hdev, "urb %p submission failed (%d)",
1480 urb, -err);
1481 if (err != -EPERM)
1482 hci_cmd_sync_cancel(hdev, -err);
1483 usb_unanchor_urb(urb);
1484 }
1485
1486 /* Only initialize intr_interval if URB poll sync is enabled */
1487 if (!data->poll_sync)
1488 goto done;
1489
1490 /* The units are frames (milliseconds) for full and low speed devices,
1491 * and microframes (1/8 millisecond) for highspeed and SuperSpeed
1492 * devices.
1493 *
1494 * This is done once on open/resume so it shouldn't change even if
1495 * force_poll_sync changes.
1496 */
1497 switch (urb->dev->speed) {
1498 case USB_SPEED_SUPER_PLUS:
1499 case USB_SPEED_SUPER: /* units are 125us */
1500 data->intr_interval = usecs_to_jiffies(urb->interval * 125);
1501 break;
1502 default:
1503 data->intr_interval = msecs_to_jiffies(urb->interval);
1504 break;
1505 }
1506
1507 done:
1508 usb_free_urb(urb);
1509
1510 return err;
1511 }
1512
btusb_bulk_complete(struct urb * urb)1513 static void btusb_bulk_complete(struct urb *urb)
1514 {
1515 struct hci_dev *hdev = urb->context;
1516 struct btusb_data *data = hci_get_drvdata(hdev);
1517 int err;
1518
1519 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1520 urb->actual_length);
1521
1522 if (!test_bit(HCI_RUNNING, &hdev->flags))
1523 return;
1524
1525 if (urb->status == 0) {
1526 hdev->stat.byte_rx += urb->actual_length;
1527
1528 if (data->recv_bulk(data, urb->transfer_buffer,
1529 urb->actual_length) < 0) {
1530 bt_dev_err(hdev, "corrupted ACL packet");
1531 hdev->stat.err_rx++;
1532 }
1533 } else if (urb->status == -ENOENT) {
1534 /* Avoid suspend failed when usb_kill_urb */
1535 return;
1536 }
1537
1538 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
1539 return;
1540
1541 usb_anchor_urb(urb, &data->bulk_anchor);
1542 usb_mark_last_busy(data->udev);
1543
1544 err = usb_submit_urb(urb, GFP_ATOMIC);
1545 if (err < 0) {
1546 /* -EPERM: urb is being killed;
1547 * -ENODEV: device got disconnected
1548 */
1549 if (err != -EPERM && err != -ENODEV)
1550 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1551 urb, -err);
1552 usb_unanchor_urb(urb);
1553 }
1554 }
1555
btusb_submit_bulk_urb(struct hci_dev * hdev,gfp_t mem_flags)1556 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
1557 {
1558 struct btusb_data *data = hci_get_drvdata(hdev);
1559 struct urb *urb;
1560 unsigned char *buf;
1561 unsigned int pipe;
1562 int err, size = HCI_MAX_FRAME_SIZE;
1563
1564 BT_DBG("%s", hdev->name);
1565
1566 if (!data->bulk_rx_ep)
1567 return -ENODEV;
1568
1569 urb = usb_alloc_urb(0, mem_flags);
1570 if (!urb)
1571 return -ENOMEM;
1572
1573 buf = kmalloc(size, mem_flags);
1574 if (!buf) {
1575 usb_free_urb(urb);
1576 return -ENOMEM;
1577 }
1578
1579 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
1580
1581 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1582 btusb_bulk_complete, hdev);
1583
1584 urb->transfer_flags |= URB_FREE_BUFFER;
1585
1586 usb_mark_last_busy(data->udev);
1587 usb_anchor_urb(urb, &data->bulk_anchor);
1588
1589 err = usb_submit_urb(urb, mem_flags);
1590 if (err < 0) {
1591 if (err != -EPERM && err != -ENODEV)
1592 bt_dev_err(hdev, "urb %p submission failed (%d)",
1593 urb, -err);
1594 usb_unanchor_urb(urb);
1595 }
1596
1597 usb_free_urb(urb);
1598
1599 return err;
1600 }
1601
btusb_isoc_complete(struct urb * urb)1602 static void btusb_isoc_complete(struct urb *urb)
1603 {
1604 struct hci_dev *hdev = urb->context;
1605 struct btusb_data *data = hci_get_drvdata(hdev);
1606 int i, err;
1607
1608 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1609 urb->actual_length);
1610
1611 if (!test_bit(HCI_RUNNING, &hdev->flags))
1612 return;
1613
1614 if (urb->status == 0) {
1615 for (i = 0; i < urb->number_of_packets; i++) {
1616 unsigned int offset = urb->iso_frame_desc[i].offset;
1617 unsigned int length = urb->iso_frame_desc[i].actual_length;
1618
1619 if (urb->iso_frame_desc[i].status)
1620 continue;
1621
1622 hdev->stat.byte_rx += length;
1623
1624 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
1625 length) < 0) {
1626 bt_dev_err(hdev, "corrupted SCO packet");
1627 hdev->stat.err_rx++;
1628 }
1629 }
1630 } else if (urb->status == -ENOENT) {
1631 /* Avoid suspend failed when usb_kill_urb */
1632 return;
1633 }
1634
1635 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
1636 return;
1637
1638 usb_anchor_urb(urb, &data->isoc_anchor);
1639
1640 err = usb_submit_urb(urb, GFP_ATOMIC);
1641 if (err < 0) {
1642 /* -EPERM: urb is being killed;
1643 * -ENODEV: device got disconnected
1644 */
1645 if (err != -EPERM && err != -ENODEV)
1646 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1647 urb, -err);
1648 usb_unanchor_urb(urb);
1649 }
1650 }
1651
__fill_isoc_descriptor_msbc(struct urb * urb,int len,int mtu,struct btusb_data * data)1652 static inline void __fill_isoc_descriptor_msbc(struct urb *urb, int len,
1653 int mtu, struct btusb_data *data)
1654 {
1655 int i = 0, offset = 0;
1656 unsigned int interval;
1657
1658 BT_DBG("len %d mtu %d", len, mtu);
1659
1660 /* For mSBC ALT 6 settings some chips need to transmit the data
1661 * continuously without the zero length of USB packets.
1662 */
1663 if (test_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags))
1664 goto ignore_usb_alt6_packet_flow;
1665
1666 /* For mSBC ALT 6 setting the host will send the packet at continuous
1667 * flow. As per core spec 5, vol 4, part B, table 2.1. For ALT setting
1668 * 6 the HCI PACKET INTERVAL should be 7.5ms for every usb packets.
1669 * To maintain the rate we send 63bytes of usb packets alternatively for
1670 * 7ms and 8ms to maintain the rate as 7.5ms.
1671 */
1672 if (data->usb_alt6_packet_flow) {
1673 interval = 7;
1674 data->usb_alt6_packet_flow = false;
1675 } else {
1676 interval = 6;
1677 data->usb_alt6_packet_flow = true;
1678 }
1679
1680 for (i = 0; i < interval; i++) {
1681 urb->iso_frame_desc[i].offset = offset;
1682 urb->iso_frame_desc[i].length = offset;
1683 }
1684
1685 ignore_usb_alt6_packet_flow:
1686 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1687 urb->iso_frame_desc[i].offset = offset;
1688 urb->iso_frame_desc[i].length = len;
1689 i++;
1690 }
1691
1692 urb->number_of_packets = i;
1693 }
1694
__fill_isoc_descriptor(struct urb * urb,int len,int mtu)1695 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
1696 {
1697 int i, offset = 0;
1698
1699 BT_DBG("len %d mtu %d", len, mtu);
1700
1701 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
1702 i++, offset += mtu, len -= mtu) {
1703 urb->iso_frame_desc[i].offset = offset;
1704 urb->iso_frame_desc[i].length = mtu;
1705 }
1706
1707 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1708 urb->iso_frame_desc[i].offset = offset;
1709 urb->iso_frame_desc[i].length = len;
1710 i++;
1711 }
1712
1713 urb->number_of_packets = i;
1714 }
1715
btusb_submit_isoc_urb(struct hci_dev * hdev,gfp_t mem_flags)1716 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
1717 {
1718 struct btusb_data *data = hci_get_drvdata(hdev);
1719 struct urb *urb;
1720 unsigned char *buf;
1721 unsigned int pipe;
1722 int err, size;
1723
1724 BT_DBG("%s", hdev->name);
1725
1726 if (!data->isoc_rx_ep)
1727 return -ENODEV;
1728
1729 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
1730 if (!urb)
1731 return -ENOMEM;
1732
1733 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
1734 BTUSB_MAX_ISOC_FRAMES;
1735
1736 buf = kmalloc(size, mem_flags);
1737 if (!buf) {
1738 usb_free_urb(urb);
1739 return -ENOMEM;
1740 }
1741
1742 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
1743
1744 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
1745 hdev, data->isoc_rx_ep->bInterval);
1746
1747 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
1748
1749 __fill_isoc_descriptor(urb, size,
1750 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
1751
1752 usb_anchor_urb(urb, &data->isoc_anchor);
1753
1754 err = usb_submit_urb(urb, mem_flags);
1755 if (err < 0) {
1756 if (err != -EPERM && err != -ENODEV)
1757 bt_dev_err(hdev, "urb %p submission failed (%d)",
1758 urb, -err);
1759 usb_unanchor_urb(urb);
1760 }
1761
1762 usb_free_urb(urb);
1763
1764 return err;
1765 }
1766
btusb_diag_complete(struct urb * urb)1767 static void btusb_diag_complete(struct urb *urb)
1768 {
1769 struct hci_dev *hdev = urb->context;
1770 struct btusb_data *data = hci_get_drvdata(hdev);
1771 int err;
1772
1773 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1774 urb->actual_length);
1775
1776 if (urb->status == 0) {
1777 struct sk_buff *skb;
1778
1779 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC);
1780 if (skb) {
1781 skb_put_data(skb, urb->transfer_buffer,
1782 urb->actual_length);
1783 hci_recv_diag(hdev, skb);
1784 }
1785 } else if (urb->status == -ENOENT) {
1786 /* Avoid suspend failed when usb_kill_urb */
1787 return;
1788 }
1789
1790 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags))
1791 return;
1792
1793 usb_anchor_urb(urb, &data->diag_anchor);
1794 usb_mark_last_busy(data->udev);
1795
1796 err = usb_submit_urb(urb, GFP_ATOMIC);
1797 if (err < 0) {
1798 /* -EPERM: urb is being killed;
1799 * -ENODEV: device got disconnected
1800 */
1801 if (err != -EPERM && err != -ENODEV)
1802 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1803 urb, -err);
1804 usb_unanchor_urb(urb);
1805 }
1806 }
1807
btusb_submit_diag_urb(struct hci_dev * hdev,gfp_t mem_flags)1808 static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags)
1809 {
1810 struct btusb_data *data = hci_get_drvdata(hdev);
1811 struct urb *urb;
1812 unsigned char *buf;
1813 unsigned int pipe;
1814 int err, size = HCI_MAX_FRAME_SIZE;
1815
1816 BT_DBG("%s", hdev->name);
1817
1818 if (!data->diag_rx_ep)
1819 return -ENODEV;
1820
1821 urb = usb_alloc_urb(0, mem_flags);
1822 if (!urb)
1823 return -ENOMEM;
1824
1825 buf = kmalloc(size, mem_flags);
1826 if (!buf) {
1827 usb_free_urb(urb);
1828 return -ENOMEM;
1829 }
1830
1831 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress);
1832
1833 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1834 btusb_diag_complete, hdev);
1835
1836 urb->transfer_flags |= URB_FREE_BUFFER;
1837
1838 usb_mark_last_busy(data->udev);
1839 usb_anchor_urb(urb, &data->diag_anchor);
1840
1841 err = usb_submit_urb(urb, mem_flags);
1842 if (err < 0) {
1843 if (err != -EPERM && err != -ENODEV)
1844 bt_dev_err(hdev, "urb %p submission failed (%d)",
1845 urb, -err);
1846 usb_unanchor_urb(urb);
1847 }
1848
1849 usb_free_urb(urb);
1850
1851 return err;
1852 }
1853
btusb_tx_complete(struct urb * urb)1854 static void btusb_tx_complete(struct urb *urb)
1855 {
1856 struct sk_buff *skb = urb->context;
1857 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1858 struct btusb_data *data = hci_get_drvdata(hdev);
1859 unsigned long flags;
1860
1861 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1862 urb->actual_length);
1863
1864 if (!test_bit(HCI_RUNNING, &hdev->flags))
1865 goto done;
1866
1867 if (!urb->status) {
1868 hdev->stat.byte_tx += urb->transfer_buffer_length;
1869 } else {
1870 if (hci_skb_pkt_type(skb) == HCI_COMMAND_PKT)
1871 hci_cmd_sync_cancel(hdev, -urb->status);
1872 hdev->stat.err_tx++;
1873 }
1874
1875 done:
1876 spin_lock_irqsave(&data->txlock, flags);
1877 data->tx_in_flight--;
1878 spin_unlock_irqrestore(&data->txlock, flags);
1879
1880 kfree(urb->setup_packet);
1881
1882 kfree_skb(skb);
1883 }
1884
btusb_isoc_tx_complete(struct urb * urb)1885 static void btusb_isoc_tx_complete(struct urb *urb)
1886 {
1887 struct sk_buff *skb = urb->context;
1888 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1889
1890 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1891 urb->actual_length);
1892
1893 if (!test_bit(HCI_RUNNING, &hdev->flags))
1894 goto done;
1895
1896 if (!urb->status)
1897 hdev->stat.byte_tx += urb->transfer_buffer_length;
1898 else
1899 hdev->stat.err_tx++;
1900
1901 done:
1902 kfree(urb->setup_packet);
1903
1904 kfree_skb(skb);
1905 }
1906
btusb_open(struct hci_dev * hdev)1907 static int btusb_open(struct hci_dev *hdev)
1908 {
1909 struct btusb_data *data = hci_get_drvdata(hdev);
1910 int err;
1911
1912 BT_DBG("%s", hdev->name);
1913
1914 err = usb_autopm_get_interface(data->intf);
1915 if (err < 0)
1916 return err;
1917
1918 /* Patching USB firmware files prior to starting any URBs of HCI path
1919 * It is more safe to use USB bulk channel for downloading USB patch
1920 */
1921 if (data->setup_on_usb) {
1922 err = data->setup_on_usb(hdev);
1923 if (err < 0)
1924 goto setup_fail;
1925 }
1926
1927 data->intf->needs_remote_wakeup = 1;
1928
1929 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
1930 goto done;
1931
1932 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
1933 if (err < 0)
1934 goto failed;
1935
1936 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1937 if (err < 0) {
1938 usb_kill_anchored_urbs(&data->intr_anchor);
1939 goto failed;
1940 }
1941
1942 set_bit(BTUSB_BULK_RUNNING, &data->flags);
1943 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1944
1945 if (data->diag) {
1946 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL))
1947 set_bit(BTUSB_DIAG_RUNNING, &data->flags);
1948 }
1949
1950 done:
1951 usb_autopm_put_interface(data->intf);
1952 return 0;
1953
1954 failed:
1955 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1956 setup_fail:
1957 usb_autopm_put_interface(data->intf);
1958 return err;
1959 }
1960
btusb_stop_traffic(struct btusb_data * data)1961 static void btusb_stop_traffic(struct btusb_data *data)
1962 {
1963 usb_kill_anchored_urbs(&data->intr_anchor);
1964 usb_kill_anchored_urbs(&data->bulk_anchor);
1965 usb_kill_anchored_urbs(&data->isoc_anchor);
1966 usb_kill_anchored_urbs(&data->diag_anchor);
1967 usb_kill_anchored_urbs(&data->ctrl_anchor);
1968 }
1969
btusb_close(struct hci_dev * hdev)1970 static int btusb_close(struct hci_dev *hdev)
1971 {
1972 struct btusb_data *data = hci_get_drvdata(hdev);
1973 int err;
1974
1975 BT_DBG("%s", hdev->name);
1976
1977 cancel_delayed_work(&data->rx_work);
1978 cancel_work_sync(&data->work);
1979 cancel_work_sync(&data->waker);
1980
1981 skb_queue_purge(&data->acl_q);
1982
1983 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1984 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1985 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1986 clear_bit(BTUSB_DIAG_RUNNING, &data->flags);
1987
1988 btusb_stop_traffic(data);
1989 btusb_free_frags(data);
1990
1991 err = usb_autopm_get_interface(data->intf);
1992 if (err < 0)
1993 goto failed;
1994
1995 data->intf->needs_remote_wakeup = 0;
1996
1997 /* Enable remote wake up for auto-suspend */
1998 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags))
1999 data->intf->needs_remote_wakeup = 1;
2000
2001 usb_autopm_put_interface(data->intf);
2002
2003 failed:
2004 usb_scuttle_anchored_urbs(&data->deferred);
2005 return 0;
2006 }
2007
btusb_flush(struct hci_dev * hdev)2008 static int btusb_flush(struct hci_dev *hdev)
2009 {
2010 struct btusb_data *data = hci_get_drvdata(hdev);
2011
2012 BT_DBG("%s", hdev->name);
2013
2014 cancel_delayed_work(&data->rx_work);
2015
2016 skb_queue_purge(&data->acl_q);
2017
2018 usb_kill_anchored_urbs(&data->tx_anchor);
2019 btusb_free_frags(data);
2020
2021 return 0;
2022 }
2023
alloc_ctrl_urb(struct hci_dev * hdev,struct sk_buff * skb)2024 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
2025 {
2026 struct btusb_data *data = hci_get_drvdata(hdev);
2027 struct usb_ctrlrequest *dr;
2028 struct urb *urb;
2029 unsigned int pipe;
2030
2031 urb = usb_alloc_urb(0, GFP_KERNEL);
2032 if (!urb)
2033 return ERR_PTR(-ENOMEM);
2034
2035 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
2036 if (!dr) {
2037 usb_free_urb(urb);
2038 return ERR_PTR(-ENOMEM);
2039 }
2040
2041 dr->bRequestType = data->cmdreq_type;
2042 dr->bRequest = data->cmdreq;
2043 dr->wIndex = 0;
2044 dr->wValue = 0;
2045 dr->wLength = __cpu_to_le16(skb->len);
2046
2047 pipe = usb_sndctrlpipe(data->udev, 0x00);
2048
2049 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
2050 skb->data, skb->len, btusb_tx_complete, skb);
2051
2052 skb->dev = (void *)hdev;
2053
2054 return urb;
2055 }
2056
alloc_bulk_urb(struct hci_dev * hdev,struct sk_buff * skb)2057 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
2058 {
2059 struct btusb_data *data = hci_get_drvdata(hdev);
2060 struct urb *urb;
2061 unsigned int pipe;
2062
2063 if (!data->bulk_tx_ep)
2064 return ERR_PTR(-ENODEV);
2065
2066 urb = usb_alloc_urb(0, GFP_KERNEL);
2067 if (!urb)
2068 return ERR_PTR(-ENOMEM);
2069
2070 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
2071
2072 usb_fill_bulk_urb(urb, data->udev, pipe,
2073 skb->data, skb->len, btusb_tx_complete, skb);
2074
2075 skb->dev = (void *)hdev;
2076
2077 return urb;
2078 }
2079
alloc_isoc_urb(struct hci_dev * hdev,struct sk_buff * skb)2080 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
2081 {
2082 struct btusb_data *data = hci_get_drvdata(hdev);
2083 struct urb *urb;
2084 unsigned int pipe;
2085
2086 if (!data->isoc_tx_ep)
2087 return ERR_PTR(-ENODEV);
2088
2089 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
2090 if (!urb)
2091 return ERR_PTR(-ENOMEM);
2092
2093 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
2094
2095 usb_fill_int_urb(urb, data->udev, pipe,
2096 skb->data, skb->len, btusb_isoc_tx_complete,
2097 skb, data->isoc_tx_ep->bInterval);
2098
2099 urb->transfer_flags = URB_ISO_ASAP;
2100
2101 if (data->isoc_altsetting == 6)
2102 __fill_isoc_descriptor_msbc(urb, skb->len,
2103 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize),
2104 data);
2105 else
2106 __fill_isoc_descriptor(urb, skb->len,
2107 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
2108 skb->dev = (void *)hdev;
2109
2110 return urb;
2111 }
2112
submit_tx_urb(struct hci_dev * hdev,struct urb * urb)2113 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
2114 {
2115 struct btusb_data *data = hci_get_drvdata(hdev);
2116 int err;
2117
2118 usb_anchor_urb(urb, &data->tx_anchor);
2119
2120 err = usb_submit_urb(urb, GFP_KERNEL);
2121 if (err < 0) {
2122 if (err != -EPERM && err != -ENODEV)
2123 bt_dev_err(hdev, "urb %p submission failed (%d)",
2124 urb, -err);
2125 kfree(urb->setup_packet);
2126 usb_unanchor_urb(urb);
2127 } else {
2128 usb_mark_last_busy(data->udev);
2129 }
2130
2131 usb_free_urb(urb);
2132 return err;
2133 }
2134
submit_or_queue_tx_urb(struct hci_dev * hdev,struct urb * urb)2135 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
2136 {
2137 struct btusb_data *data = hci_get_drvdata(hdev);
2138 unsigned long flags;
2139 bool suspending;
2140
2141 spin_lock_irqsave(&data->txlock, flags);
2142 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
2143 if (!suspending)
2144 data->tx_in_flight++;
2145 spin_unlock_irqrestore(&data->txlock, flags);
2146
2147 if (!suspending)
2148 return submit_tx_urb(hdev, urb);
2149
2150 usb_anchor_urb(urb, &data->deferred);
2151 schedule_work(&data->waker);
2152
2153 usb_free_urb(urb);
2154 return 0;
2155 }
2156
btusb_send_frame(struct hci_dev * hdev,struct sk_buff * skb)2157 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
2158 {
2159 struct urb *urb;
2160
2161 BT_DBG("%s", hdev->name);
2162
2163 switch (hci_skb_pkt_type(skb)) {
2164 case HCI_COMMAND_PKT:
2165 urb = alloc_ctrl_urb(hdev, skb);
2166 if (IS_ERR(urb))
2167 return PTR_ERR(urb);
2168
2169 hdev->stat.cmd_tx++;
2170 return submit_or_queue_tx_urb(hdev, urb);
2171
2172 case HCI_ACLDATA_PKT:
2173 urb = alloc_bulk_urb(hdev, skb);
2174 if (IS_ERR(urb))
2175 return PTR_ERR(urb);
2176
2177 hdev->stat.acl_tx++;
2178 return submit_or_queue_tx_urb(hdev, urb);
2179
2180 case HCI_SCODATA_PKT:
2181 if (!hci_dev_test_flag(hdev, HCI_USER_CHANNEL) &&
2182 hci_conn_num(hdev, SCO_LINK) < 1)
2183 return -ENODEV;
2184
2185 urb = alloc_isoc_urb(hdev, skb);
2186 if (IS_ERR(urb))
2187 return PTR_ERR(urb);
2188
2189 hdev->stat.sco_tx++;
2190 return submit_tx_urb(hdev, urb);
2191
2192 case HCI_ISODATA_PKT:
2193 urb = alloc_bulk_urb(hdev, skb);
2194 if (IS_ERR(urb))
2195 return PTR_ERR(urb);
2196
2197 return submit_or_queue_tx_urb(hdev, urb);
2198 }
2199
2200 return -EILSEQ;
2201 }
2202
btusb_notify(struct hci_dev * hdev,unsigned int evt)2203 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
2204 {
2205 struct btusb_data *data = hci_get_drvdata(hdev);
2206
2207 BT_DBG("%s evt %d", hdev->name, evt);
2208
2209 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
2210 data->sco_num = hci_conn_num(hdev, SCO_LINK);
2211 data->air_mode = evt;
2212 schedule_work(&data->work);
2213 }
2214 }
2215
__set_isoc_interface(struct hci_dev * hdev,int altsetting)2216 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
2217 {
2218 struct btusb_data *data = hci_get_drvdata(hdev);
2219 struct usb_interface *intf = data->isoc;
2220 struct usb_endpoint_descriptor *ep_desc;
2221 int i, err;
2222
2223 if (!data->isoc)
2224 return -ENODEV;
2225
2226 err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting);
2227 if (err < 0) {
2228 bt_dev_err(hdev, "setting interface failed (%d)", -err);
2229 return err;
2230 }
2231
2232 data->isoc_altsetting = altsetting;
2233
2234 data->isoc_tx_ep = NULL;
2235 data->isoc_rx_ep = NULL;
2236
2237 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2238 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2239
2240 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
2241 data->isoc_tx_ep = ep_desc;
2242 continue;
2243 }
2244
2245 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
2246 data->isoc_rx_ep = ep_desc;
2247 continue;
2248 }
2249 }
2250
2251 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
2252 bt_dev_err(hdev, "invalid SCO descriptors");
2253 return -ENODEV;
2254 }
2255
2256 return 0;
2257 }
2258
btusb_switch_alt_setting(struct hci_dev * hdev,int new_alts)2259 static int btusb_switch_alt_setting(struct hci_dev *hdev, int new_alts)
2260 {
2261 struct btusb_data *data = hci_get_drvdata(hdev);
2262 int err;
2263
2264 if (data->isoc_altsetting != new_alts) {
2265 unsigned long flags;
2266
2267 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2268 usb_kill_anchored_urbs(&data->isoc_anchor);
2269
2270 /* When isochronous alternate setting needs to be
2271 * changed, because SCO connection has been added
2272 * or removed, a packet fragment may be left in the
2273 * reassembling state. This could lead to wrongly
2274 * assembled fragments.
2275 *
2276 * Clear outstanding fragment when selecting a new
2277 * alternate setting.
2278 */
2279 spin_lock_irqsave(&data->rxlock, flags);
2280 dev_kfree_skb_irq(data->sco_skb);
2281 data->sco_skb = NULL;
2282 spin_unlock_irqrestore(&data->rxlock, flags);
2283
2284 err = __set_isoc_interface(hdev, new_alts);
2285 if (err < 0)
2286 return err;
2287 }
2288
2289 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2290 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
2291 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2292 else
2293 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
2294 }
2295
2296 return 0;
2297 }
2298
btusb_find_altsetting(struct btusb_data * data,int alt)2299 static struct usb_host_interface *btusb_find_altsetting(struct btusb_data *data,
2300 int alt)
2301 {
2302 struct usb_interface *intf = data->isoc;
2303 int i;
2304
2305 BT_DBG("Looking for Alt no :%d", alt);
2306
2307 if (!intf)
2308 return NULL;
2309
2310 for (i = 0; i < intf->num_altsetting; i++) {
2311 if (intf->altsetting[i].desc.bAlternateSetting == alt)
2312 return &intf->altsetting[i];
2313 }
2314
2315 return NULL;
2316 }
2317
btusb_work(struct work_struct * work)2318 static void btusb_work(struct work_struct *work)
2319 {
2320 struct btusb_data *data = container_of(work, struct btusb_data, work);
2321 struct hci_dev *hdev = data->hdev;
2322 int new_alts = 0;
2323 int err;
2324
2325 if (data->sco_num > 0) {
2326 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
2327 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
2328 if (err < 0) {
2329 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2330 usb_kill_anchored_urbs(&data->isoc_anchor);
2331 return;
2332 }
2333
2334 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
2335 }
2336
2337 if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_CVSD) {
2338 if (hdev->voice_setting & 0x0020) {
2339 static const int alts[3] = { 2, 4, 5 };
2340
2341 new_alts = alts[data->sco_num - 1];
2342 } else {
2343 new_alts = data->sco_num;
2344 }
2345 } else if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_TRANSP) {
2346 /* Bluetooth USB spec recommends alt 6 (63 bytes), but
2347 * many adapters do not support it. Alt 1 appears to
2348 * work for all adapters that do not have alt 6, and
2349 * which work with WBS at all. Some devices prefer
2350 * alt 3 (HCI payload >= 60 Bytes let air packet
2351 * data satisfy 60 bytes), requiring
2352 * MTU >= 3 (packets) * 25 (size) - 3 (headers) = 72
2353 * see also Core spec 5, vol 4, B 2.1.1 & Table 2.1.
2354 */
2355 if (btusb_find_altsetting(data, 6))
2356 new_alts = 6;
2357 else if (btusb_find_altsetting(data, 3) &&
2358 hdev->sco_mtu >= 72 &&
2359 test_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags))
2360 new_alts = 3;
2361 else
2362 new_alts = 1;
2363 }
2364
2365 if (btusb_switch_alt_setting(hdev, new_alts) < 0)
2366 bt_dev_err(hdev, "set USB alt:(%d) failed!", new_alts);
2367 } else {
2368 usb_kill_anchored_urbs(&data->isoc_anchor);
2369
2370 if (test_and_clear_bit(BTUSB_ISOC_RUNNING, &data->flags))
2371 __set_isoc_interface(hdev, 0);
2372
2373 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
2374 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
2375 }
2376 }
2377
btusb_waker(struct work_struct * work)2378 static void btusb_waker(struct work_struct *work)
2379 {
2380 struct btusb_data *data = container_of(work, struct btusb_data, waker);
2381 int err;
2382
2383 err = usb_autopm_get_interface(data->intf);
2384 if (err < 0)
2385 return;
2386
2387 usb_autopm_put_interface(data->intf);
2388 }
2389
btusb_rx_work(struct work_struct * work)2390 static void btusb_rx_work(struct work_struct *work)
2391 {
2392 struct btusb_data *data = container_of(work, struct btusb_data,
2393 rx_work.work);
2394 struct sk_buff *skb;
2395
2396 /* Dequeue ACL data received during the interval */
2397 while ((skb = skb_dequeue(&data->acl_q)))
2398 data->recv_acl(data->hdev, skb);
2399 }
2400
btusb_setup_bcm92035(struct hci_dev * hdev)2401 static int btusb_setup_bcm92035(struct hci_dev *hdev)
2402 {
2403 struct sk_buff *skb;
2404 u8 val = 0x00;
2405
2406 BT_DBG("%s", hdev->name);
2407
2408 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
2409 if (IS_ERR(skb))
2410 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb));
2411 else
2412 kfree_skb(skb);
2413
2414 return 0;
2415 }
2416
btusb_setup_csr(struct hci_dev * hdev)2417 static int btusb_setup_csr(struct hci_dev *hdev)
2418 {
2419 struct btusb_data *data = hci_get_drvdata(hdev);
2420 u16 bcdDevice = le16_to_cpu(data->udev->descriptor.bcdDevice);
2421 struct hci_rp_read_local_version *rp;
2422 struct sk_buff *skb;
2423 bool is_fake = false;
2424 int ret;
2425
2426 BT_DBG("%s", hdev->name);
2427
2428 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
2429 HCI_INIT_TIMEOUT);
2430 if (IS_ERR(skb)) {
2431 int err = PTR_ERR(skb);
2432 bt_dev_err(hdev, "CSR: Local version failed (%d)", err);
2433 return err;
2434 }
2435
2436 rp = skb_pull_data(skb, sizeof(*rp));
2437 if (!rp) {
2438 bt_dev_err(hdev, "CSR: Local version length mismatch");
2439 kfree_skb(skb);
2440 return -EIO;
2441 }
2442
2443 bt_dev_info(hdev, "CSR: Setting up dongle with HCI ver=%u rev=%04x",
2444 rp->hci_ver, le16_to_cpu(rp->hci_rev));
2445
2446 bt_dev_info(hdev, "LMP ver=%u subver=%04x; manufacturer=%u",
2447 rp->lmp_ver, le16_to_cpu(rp->lmp_subver),
2448 le16_to_cpu(rp->manufacturer));
2449
2450 /* Detect a wide host of Chinese controllers that aren't CSR.
2451 *
2452 * Known fake bcdDevices: 0x0100, 0x0134, 0x1915, 0x2520, 0x7558, 0x8891
2453 *
2454 * The main thing they have in common is that these are really popular low-cost
2455 * options that support newer Bluetooth versions but rely on heavy VID/PID
2456 * squatting of this poor old Bluetooth 1.1 device. Even sold as such.
2457 *
2458 * We detect actual CSR devices by checking that the HCI manufacturer code
2459 * is Cambridge Silicon Radio (10) and ensuring that LMP sub-version and
2460 * HCI rev values always match. As they both store the firmware number.
2461 */
2462 if (le16_to_cpu(rp->manufacturer) != 10 ||
2463 le16_to_cpu(rp->hci_rev) != le16_to_cpu(rp->lmp_subver))
2464 is_fake = true;
2465
2466 /* Known legit CSR firmware build numbers and their supported BT versions:
2467 * - 1.1 (0x1) -> 0x0073, 0x020d, 0x033c, 0x034e
2468 * - 1.2 (0x2) -> 0x04d9, 0x0529
2469 * - 2.0 (0x3) -> 0x07a6, 0x07ad, 0x0c5c
2470 * - 2.1 (0x4) -> 0x149c, 0x1735, 0x1899 (0x1899 is a BlueCore4-External)
2471 * - 4.0 (0x6) -> 0x1d86, 0x2031, 0x22bb
2472 *
2473 * e.g. Real CSR dongles with LMP subversion 0x73 are old enough that
2474 * support BT 1.1 only; so it's a dead giveaway when some
2475 * third-party BT 4.0 dongle reuses it.
2476 */
2477 else if (le16_to_cpu(rp->lmp_subver) <= 0x034e &&
2478 rp->hci_ver > BLUETOOTH_VER_1_1)
2479 is_fake = true;
2480
2481 else if (le16_to_cpu(rp->lmp_subver) <= 0x0529 &&
2482 rp->hci_ver > BLUETOOTH_VER_1_2)
2483 is_fake = true;
2484
2485 else if (le16_to_cpu(rp->lmp_subver) <= 0x0c5c &&
2486 rp->hci_ver > BLUETOOTH_VER_2_0)
2487 is_fake = true;
2488
2489 else if (le16_to_cpu(rp->lmp_subver) <= 0x1899 &&
2490 rp->hci_ver > BLUETOOTH_VER_2_1)
2491 is_fake = true;
2492
2493 else if (le16_to_cpu(rp->lmp_subver) <= 0x22bb &&
2494 rp->hci_ver > BLUETOOTH_VER_4_0)
2495 is_fake = true;
2496
2497 /* Other clones which beat all the above checks */
2498 else if (bcdDevice == 0x0134 &&
2499 le16_to_cpu(rp->lmp_subver) == 0x0c5c &&
2500 rp->hci_ver == BLUETOOTH_VER_2_0)
2501 is_fake = true;
2502
2503 if (is_fake) {
2504 bt_dev_warn(hdev, "CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once...");
2505
2506 /* Generally these clones have big discrepancies between
2507 * advertised features and what's actually supported.
2508 * Probably will need to be expanded in the future;
2509 * without these the controller will lock up.
2510 */
2511 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_STORED_LINK_KEY);
2512 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_ERR_DATA_REPORTING);
2513 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_FILTER_CLEAR_ALL);
2514 hci_set_quirk(hdev, HCI_QUIRK_NO_SUSPEND_NOTIFIER);
2515 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_READ_VOICE_SETTING);
2516 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_READ_PAGE_SCAN_TYPE);
2517
2518 /* Clear the reset quirk since this is not an actual
2519 * early Bluetooth 1.1 device from CSR.
2520 */
2521 hci_clear_quirk(hdev, HCI_QUIRK_RESET_ON_CLOSE);
2522 hci_clear_quirk(hdev, HCI_QUIRK_SIMULTANEOUS_DISCOVERY);
2523
2524 /*
2525 * Special workaround for these BT 4.0 chip clones, and potentially more:
2526 *
2527 * - 0x0134: a Barrot 8041a02 (HCI rev: 0x0810 sub: 0x1012)
2528 * - 0x7558: IC markings FR3191AHAL 749H15143 (HCI rev/sub-version: 0x0709)
2529 *
2530 * These controllers are really messed-up.
2531 *
2532 * 1. Their bulk RX endpoint will never report any data unless
2533 * the device was suspended at least once (yes, really).
2534 * 2. They will not wakeup when autosuspended and receiving data
2535 * on their bulk RX endpoint from e.g. a keyboard or mouse
2536 * (IOW remote-wakeup support is broken for the bulk endpoint).
2537 *
2538 * To fix 1. enable runtime-suspend, force-suspend the
2539 * HCI and then wake-it up by disabling runtime-suspend.
2540 *
2541 * To fix 2. clear the HCI's can_wake flag, this way the HCI
2542 * will still be autosuspended when it is not open.
2543 *
2544 * --
2545 *
2546 * Because these are widespread problems we prefer generic solutions; so
2547 * apply this initialization quirk to every controller that gets here,
2548 * it should be harmless. The alternative is to not work at all.
2549 */
2550 pm_runtime_allow(&data->udev->dev);
2551
2552 ret = pm_runtime_suspend(&data->udev->dev);
2553 if (ret >= 0)
2554 msleep(200);
2555 else
2556 bt_dev_warn(hdev, "CSR: Couldn't suspend the device for our Barrot 8041a02 receive-issue workaround");
2557
2558 pm_runtime_forbid(&data->udev->dev);
2559
2560 device_set_wakeup_capable(&data->udev->dev, false);
2561
2562 /* Re-enable autosuspend if this was requested */
2563 if (enable_autosuspend)
2564 usb_enable_autosuspend(data->udev);
2565 }
2566
2567 kfree_skb(skb);
2568
2569 return 0;
2570 }
2571
inject_cmd_complete(struct hci_dev * hdev,__u16 opcode)2572 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
2573 {
2574 struct sk_buff *skb;
2575 struct hci_event_hdr *hdr;
2576 struct hci_ev_cmd_complete *evt;
2577
2578 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL);
2579 if (!skb)
2580 return -ENOMEM;
2581
2582 hdr = skb_put(skb, sizeof(*hdr));
2583 hdr->evt = HCI_EV_CMD_COMPLETE;
2584 hdr->plen = sizeof(*evt) + 1;
2585
2586 evt = skb_put(skb, sizeof(*evt));
2587 evt->ncmd = 0x01;
2588 evt->opcode = cpu_to_le16(opcode);
2589
2590 skb_put_u8(skb, 0x00);
2591
2592 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
2593
2594 return hci_recv_frame(hdev, skb);
2595 }
2596
btusb_recv_bulk_intel(struct btusb_data * data,void * buffer,int count)2597 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
2598 int count)
2599 {
2600 struct hci_dev *hdev = data->hdev;
2601
2602 /* When the device is in bootloader mode, then it can send
2603 * events via the bulk endpoint. These events are treated the
2604 * same way as the ones received from the interrupt endpoint.
2605 */
2606 if (btintel_test_flag(hdev, INTEL_BOOTLOADER))
2607 return btusb_recv_intr(data, buffer, count);
2608
2609 return btusb_recv_bulk(data, buffer, count);
2610 }
2611
btusb_send_frame_intel(struct hci_dev * hdev,struct sk_buff * skb)2612 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
2613 {
2614 struct urb *urb;
2615
2616 BT_DBG("%s", hdev->name);
2617
2618 switch (hci_skb_pkt_type(skb)) {
2619 case HCI_COMMAND_PKT:
2620 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) {
2621 struct hci_command_hdr *cmd = (void *)skb->data;
2622 __u16 opcode = le16_to_cpu(cmd->opcode);
2623
2624 /* When in bootloader mode and the command 0xfc09
2625 * is received, it needs to be send down the
2626 * bulk endpoint. So allocate a bulk URB instead.
2627 */
2628 if (opcode == 0xfc09)
2629 urb = alloc_bulk_urb(hdev, skb);
2630 else
2631 urb = alloc_ctrl_urb(hdev, skb);
2632
2633 /* When the BTINTEL_HCI_OP_RESET command is issued to
2634 * boot into the operational firmware, it will actually
2635 * not send a command complete event. To keep the flow
2636 * control working inject that event here.
2637 */
2638 if (opcode == BTINTEL_HCI_OP_RESET)
2639 inject_cmd_complete(hdev, opcode);
2640 } else {
2641 urb = alloc_ctrl_urb(hdev, skb);
2642 }
2643 if (IS_ERR(urb))
2644 return PTR_ERR(urb);
2645
2646 hdev->stat.cmd_tx++;
2647 return submit_or_queue_tx_urb(hdev, urb);
2648
2649 case HCI_ACLDATA_PKT:
2650 urb = alloc_bulk_urb(hdev, skb);
2651 if (IS_ERR(urb))
2652 return PTR_ERR(urb);
2653
2654 hdev->stat.acl_tx++;
2655 return submit_or_queue_tx_urb(hdev, urb);
2656
2657 case HCI_SCODATA_PKT:
2658 if (!hci_dev_test_flag(hdev, HCI_USER_CHANNEL) &&
2659 hci_conn_num(hdev, SCO_LINK) < 1)
2660 return -ENODEV;
2661
2662 urb = alloc_isoc_urb(hdev, skb);
2663 if (IS_ERR(urb))
2664 return PTR_ERR(urb);
2665
2666 hdev->stat.sco_tx++;
2667 return submit_tx_urb(hdev, urb);
2668
2669 case HCI_ISODATA_PKT:
2670 urb = alloc_bulk_urb(hdev, skb);
2671 if (IS_ERR(urb))
2672 return PTR_ERR(urb);
2673
2674 return submit_or_queue_tx_urb(hdev, urb);
2675 }
2676
2677 return -EILSEQ;
2678 }
2679
btusb_setup_realtek(struct hci_dev * hdev)2680 static int btusb_setup_realtek(struct hci_dev *hdev)
2681 {
2682 struct btusb_data *data = hci_get_drvdata(hdev);
2683 int ret;
2684
2685 ret = btrtl_setup_realtek(hdev);
2686
2687 if (btrealtek_test_flag(data->hdev, REALTEK_ALT6_CONTINUOUS_TX_CHIP))
2688 set_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags);
2689
2690 return ret;
2691 }
2692
btusb_recv_event_realtek(struct hci_dev * hdev,struct sk_buff * skb)2693 static int btusb_recv_event_realtek(struct hci_dev *hdev, struct sk_buff *skb)
2694 {
2695 if (skb->data[0] == HCI_VENDOR_PKT && skb->data[2] == RTK_SUB_EVENT_CODE_COREDUMP) {
2696 struct rtk_dev_coredump_hdr hdr = {
2697 .code = RTK_DEVCOREDUMP_CODE_MEMDUMP,
2698 };
2699
2700 bt_dev_dbg(hdev, "RTL: received coredump vendor evt, len %u",
2701 skb->len);
2702
2703 btusb_rtl_alloc_devcoredump(hdev, &hdr, skb->data, skb->len);
2704 kfree_skb(skb);
2705
2706 return 0;
2707 }
2708
2709 return hci_recv_frame(hdev, skb);
2710 }
2711
btusb_mtk_claim_iso_intf(struct btusb_data * data)2712 static void btusb_mtk_claim_iso_intf(struct btusb_data *data)
2713 {
2714 struct btmtk_data *btmtk_data = hci_get_priv(data->hdev);
2715 int err;
2716
2717 /*
2718 * The function usb_driver_claim_interface() is documented to need
2719 * locks held if it's not called from a probe routine. The code here
2720 * is called from the hci_power_on workqueue, so grab the lock.
2721 */
2722 device_lock(&btmtk_data->isopkt_intf->dev);
2723 err = usb_driver_claim_interface(&btusb_driver,
2724 btmtk_data->isopkt_intf, data);
2725 device_unlock(&btmtk_data->isopkt_intf->dev);
2726 if (err < 0) {
2727 btmtk_data->isopkt_intf = NULL;
2728 bt_dev_err(data->hdev, "Failed to claim iso interface: %d", err);
2729 return;
2730 }
2731
2732 set_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags);
2733 init_usb_anchor(&btmtk_data->isopkt_anchor);
2734 }
2735
btusb_mtk_release_iso_intf(struct hci_dev * hdev)2736 static void btusb_mtk_release_iso_intf(struct hci_dev *hdev)
2737 {
2738 struct btmtk_data *btmtk_data = hci_get_priv(hdev);
2739
2740 if (test_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags)) {
2741 usb_kill_anchored_urbs(&btmtk_data->isopkt_anchor);
2742 clear_bit(BTMTK_ISOPKT_RUNNING, &btmtk_data->flags);
2743
2744 dev_kfree_skb_irq(btmtk_data->isopkt_skb);
2745 btmtk_data->isopkt_skb = NULL;
2746 usb_set_intfdata(btmtk_data->isopkt_intf, NULL);
2747 usb_driver_release_interface(&btusb_driver,
2748 btmtk_data->isopkt_intf);
2749 }
2750
2751 clear_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags);
2752 }
2753
btusb_mtk_disconnect(struct hci_dev * hdev)2754 static int btusb_mtk_disconnect(struct hci_dev *hdev)
2755 {
2756 /* This function describes the specific additional steps taken by MediaTek
2757 * when Bluetooth usb driver's resume function is called.
2758 */
2759 btusb_mtk_release_iso_intf(hdev);
2760
2761 return 0;
2762 }
2763
btusb_mtk_reset(struct hci_dev * hdev,void * rst_data)2764 static int btusb_mtk_reset(struct hci_dev *hdev, void *rst_data)
2765 {
2766 struct btusb_data *data = hci_get_drvdata(hdev);
2767 struct btmtk_data *btmtk_data = hci_get_priv(hdev);
2768 int err;
2769
2770 /* It's MediaTek specific bluetooth reset mechanism via USB */
2771 if (test_and_set_bit(BTMTK_HW_RESET_ACTIVE, &btmtk_data->flags)) {
2772 bt_dev_err(hdev, "last reset failed? Not resetting again");
2773 return -EBUSY;
2774 }
2775
2776 err = usb_autopm_get_interface(data->intf);
2777 if (err < 0)
2778 return err;
2779
2780 /* Release MediaTek ISO data interface */
2781 btusb_mtk_release_iso_intf(hdev);
2782
2783 btusb_stop_traffic(data);
2784 usb_kill_anchored_urbs(&data->tx_anchor);
2785
2786 err = btmtk_usb_subsys_reset(hdev, btmtk_data->dev_id);
2787
2788 usb_queue_reset_device(data->intf);
2789 clear_bit(BTMTK_HW_RESET_ACTIVE, &btmtk_data->flags);
2790
2791 return err;
2792 }
2793
btusb_send_frame_mtk(struct hci_dev * hdev,struct sk_buff * skb)2794 static int btusb_send_frame_mtk(struct hci_dev *hdev, struct sk_buff *skb)
2795 {
2796 struct urb *urb;
2797
2798 BT_DBG("%s", hdev->name);
2799
2800 if (hci_skb_pkt_type(skb) == HCI_ISODATA_PKT) {
2801 urb = alloc_mtk_intr_urb(hdev, skb, btusb_tx_complete);
2802 if (IS_ERR(urb))
2803 return PTR_ERR(urb);
2804
2805 return submit_or_queue_tx_urb(hdev, urb);
2806 } else {
2807 return btusb_send_frame(hdev, skb);
2808 }
2809 }
2810
btusb_mtk_setup(struct hci_dev * hdev)2811 static int btusb_mtk_setup(struct hci_dev *hdev)
2812 {
2813 struct btusb_data *data = hci_get_drvdata(hdev);
2814 struct btmtk_data *btmtk_data = hci_get_priv(hdev);
2815
2816 /* MediaTek WMT vendor cmd requiring below USB resources to
2817 * complete the handshake.
2818 */
2819 btmtk_data->drv_name = btusb_driver.name;
2820 btmtk_data->intf = data->intf;
2821 btmtk_data->udev = data->udev;
2822 btmtk_data->ctrl_anchor = &data->ctrl_anchor;
2823 btmtk_data->reset_sync = btusb_mtk_reset;
2824
2825 /* Claim ISO data interface and endpoint */
2826 if (!test_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags)) {
2827 btmtk_data->isopkt_intf = usb_ifnum_to_if(data->udev, MTK_ISO_IFNUM);
2828 btusb_mtk_claim_iso_intf(data);
2829 }
2830
2831 return btmtk_usb_setup(hdev);
2832 }
2833
btusb_mtk_shutdown(struct hci_dev * hdev)2834 static int btusb_mtk_shutdown(struct hci_dev *hdev)
2835 {
2836 int ret;
2837
2838 ret = btmtk_usb_shutdown(hdev);
2839
2840 /* Release MediaTek iso interface after shutdown */
2841 btusb_mtk_release_iso_intf(hdev);
2842
2843 return ret;
2844 }
2845
2846 #ifdef CONFIG_PM
2847 /* Configure an out-of-band gpio as wake-up pin, if specified in device tree */
marvell_config_oob_wake(struct hci_dev * hdev)2848 static int marvell_config_oob_wake(struct hci_dev *hdev)
2849 {
2850 struct sk_buff *skb;
2851 struct btusb_data *data = hci_get_drvdata(hdev);
2852 struct device *dev = &data->udev->dev;
2853 u16 pin, gap, opcode;
2854 int ret;
2855 u8 cmd[5];
2856
2857 /* Move on if no wakeup pin specified */
2858 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) ||
2859 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap))
2860 return 0;
2861
2862 /* Vendor specific command to configure a GPIO as wake-up pin */
2863 opcode = hci_opcode_pack(0x3F, 0x59);
2864 cmd[0] = opcode & 0xFF;
2865 cmd[1] = opcode >> 8;
2866 cmd[2] = 2; /* length of parameters that follow */
2867 cmd[3] = pin;
2868 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */
2869
2870 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
2871 if (!skb) {
2872 bt_dev_err(hdev, "%s: No memory", __func__);
2873 return -ENOMEM;
2874 }
2875
2876 skb_put_data(skb, cmd, sizeof(cmd));
2877 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT;
2878
2879 ret = btusb_send_frame(hdev, skb);
2880 if (ret) {
2881 bt_dev_err(hdev, "%s: configuration failed", __func__);
2882 kfree_skb(skb);
2883 return ret;
2884 }
2885
2886 return 0;
2887 }
2888 #endif
2889
btusb_set_bdaddr_marvell(struct hci_dev * hdev,const bdaddr_t * bdaddr)2890 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
2891 const bdaddr_t *bdaddr)
2892 {
2893 struct sk_buff *skb;
2894 u8 buf[8];
2895 long ret;
2896
2897 buf[0] = 0xfe;
2898 buf[1] = sizeof(bdaddr_t);
2899 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
2900
2901 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2902 if (IS_ERR(skb)) {
2903 ret = PTR_ERR(skb);
2904 bt_dev_err(hdev, "changing Marvell device address failed (%ld)",
2905 ret);
2906 return ret;
2907 }
2908 kfree_skb(skb);
2909
2910 return 0;
2911 }
2912
btusb_set_bdaddr_ath3012(struct hci_dev * hdev,const bdaddr_t * bdaddr)2913 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
2914 const bdaddr_t *bdaddr)
2915 {
2916 struct sk_buff *skb;
2917 u8 buf[10];
2918 long ret;
2919
2920 buf[0] = 0x01;
2921 buf[1] = 0x01;
2922 buf[2] = 0x00;
2923 buf[3] = sizeof(bdaddr_t);
2924 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
2925
2926 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2927 if (IS_ERR(skb)) {
2928 ret = PTR_ERR(skb);
2929 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
2930 return ret;
2931 }
2932 kfree_skb(skb);
2933
2934 return 0;
2935 }
2936
btusb_set_bdaddr_wcn6855(struct hci_dev * hdev,const bdaddr_t * bdaddr)2937 static int btusb_set_bdaddr_wcn6855(struct hci_dev *hdev,
2938 const bdaddr_t *bdaddr)
2939 {
2940 struct sk_buff *skb;
2941 u8 buf[6];
2942 long ret;
2943
2944 memcpy(buf, bdaddr, sizeof(bdaddr_t));
2945
2946 skb = __hci_cmd_sync_ev(hdev, 0xfc14, sizeof(buf), buf,
2947 HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT);
2948 if (IS_ERR(skb)) {
2949 ret = PTR_ERR(skb);
2950 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
2951 return ret;
2952 }
2953 kfree_skb(skb);
2954
2955 return 0;
2956 }
2957
2958 #define QCA_MEMDUMP_ACL_HANDLE 0x2EDD
2959 #define QCA_MEMDUMP_SIZE_MAX 0x100000
2960 #define QCA_MEMDUMP_VSE_CLASS 0x01
2961 #define QCA_MEMDUMP_MSG_TYPE 0x08
2962 #define QCA_MEMDUMP_PKT_SIZE 248
2963 #define QCA_LAST_SEQUENCE_NUM 0xffff
2964
2965 struct qca_dump_hdr {
2966 u8 vse_class;
2967 u8 msg_type;
2968 __le16 seqno;
2969 u8 reserved;
2970 union {
2971 u8 data[0];
2972 struct {
2973 __le32 ram_dump_size;
2974 u8 data0[0];
2975 } __packed;
2976 };
2977 } __packed;
2978
2979
btusb_dump_hdr_qca(struct hci_dev * hdev,struct sk_buff * skb)2980 static void btusb_dump_hdr_qca(struct hci_dev *hdev, struct sk_buff *skb)
2981 {
2982 char buf[128];
2983 struct btusb_data *btdata = hci_get_drvdata(hdev);
2984
2985 snprintf(buf, sizeof(buf), "Controller Name: 0x%x\n",
2986 btdata->qca_dump.controller_id);
2987 skb_put_data(skb, buf, strlen(buf));
2988
2989 snprintf(buf, sizeof(buf), "Firmware Version: 0x%x\n",
2990 btdata->qca_dump.fw_version);
2991 skb_put_data(skb, buf, strlen(buf));
2992
2993 snprintf(buf, sizeof(buf), "Driver: %s\nVendor: qca\n",
2994 btusb_driver.name);
2995 skb_put_data(skb, buf, strlen(buf));
2996
2997 snprintf(buf, sizeof(buf), "VID: 0x%x\nPID:0x%x\n",
2998 btdata->qca_dump.id_vendor, btdata->qca_dump.id_product);
2999 skb_put_data(skb, buf, strlen(buf));
3000
3001 snprintf(buf, sizeof(buf), "Lmp Subversion: 0x%x\n",
3002 hdev->lmp_subver);
3003 skb_put_data(skb, buf, strlen(buf));
3004 }
3005
btusb_coredump_qca(struct hci_dev * hdev)3006 static void btusb_coredump_qca(struct hci_dev *hdev)
3007 {
3008 int err;
3009 static const u8 param[] = { 0x26 };
3010
3011 err = __hci_cmd_send(hdev, 0xfc0c, 1, param);
3012 if (err < 0)
3013 bt_dev_err(hdev, "%s: triggle crash failed (%d)", __func__, err);
3014 }
3015
3016 /* Return: 0 on success, negative errno on failure. */
handle_dump_pkt_qca(struct hci_dev * hdev,struct sk_buff * skb)3017 static int handle_dump_pkt_qca(struct hci_dev *hdev, struct sk_buff *skb)
3018 {
3019 int ret = 0;
3020 unsigned int skip = 0;
3021 u8 pkt_type;
3022 u16 seqno;
3023 u32 dump_size;
3024
3025 struct qca_dump_hdr *dump_hdr;
3026 struct btusb_data *btdata = hci_get_drvdata(hdev);
3027 struct usb_device *udev = btdata->udev;
3028
3029 pkt_type = hci_skb_pkt_type(skb);
3030 skip = sizeof(struct hci_event_hdr);
3031 if (pkt_type == HCI_ACLDATA_PKT)
3032 skip += sizeof(struct hci_acl_hdr);
3033
3034 skb_pull(skb, skip);
3035 dump_hdr = (struct qca_dump_hdr *)skb->data;
3036
3037 seqno = le16_to_cpu(dump_hdr->seqno);
3038 if (seqno == 0) {
3039 set_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags);
3040 dump_size = le32_to_cpu(dump_hdr->ram_dump_size);
3041 if (!dump_size || (dump_size > QCA_MEMDUMP_SIZE_MAX)) {
3042 ret = -EILSEQ;
3043 bt_dev_err(hdev, "Invalid memdump size(%u)",
3044 dump_size);
3045 goto out;
3046 }
3047
3048 ret = hci_devcd_init(hdev, dump_size);
3049 if (ret < 0) {
3050 bt_dev_err(hdev, "memdump init error(%d)", ret);
3051 goto out;
3052 }
3053
3054 btdata->qca_dump.ram_dump_size = dump_size;
3055 btdata->qca_dump.ram_dump_seqno = 0;
3056
3057 skb_pull(skb, offsetof(struct qca_dump_hdr, data0));
3058
3059 usb_disable_autosuspend(udev);
3060 bt_dev_info(hdev, "%s memdump size(%u)\n",
3061 (pkt_type == HCI_ACLDATA_PKT) ? "ACL" : "event",
3062 dump_size);
3063 } else {
3064 skb_pull(skb, offsetof(struct qca_dump_hdr, data));
3065 }
3066
3067 if (!btdata->qca_dump.ram_dump_size) {
3068 ret = -EINVAL;
3069 bt_dev_err(hdev, "memdump is not active");
3070 goto out;
3071 }
3072
3073 if ((seqno > btdata->qca_dump.ram_dump_seqno + 1) && (seqno != QCA_LAST_SEQUENCE_NUM)) {
3074 dump_size = QCA_MEMDUMP_PKT_SIZE * (seqno - btdata->qca_dump.ram_dump_seqno - 1);
3075 hci_devcd_append_pattern(hdev, 0x0, dump_size);
3076 bt_dev_err(hdev,
3077 "expected memdump seqno(%u) is not received(%u)\n",
3078 btdata->qca_dump.ram_dump_seqno, seqno);
3079 btdata->qca_dump.ram_dump_seqno = seqno;
3080 kfree_skb(skb);
3081 return ret;
3082 }
3083
3084 hci_devcd_append(hdev, skb);
3085 btdata->qca_dump.ram_dump_seqno++;
3086 if (seqno == QCA_LAST_SEQUENCE_NUM) {
3087 bt_dev_info(hdev,
3088 "memdump done: pkts(%u), total(%u)\n",
3089 btdata->qca_dump.ram_dump_seqno, btdata->qca_dump.ram_dump_size);
3090
3091 hci_devcd_complete(hdev);
3092 goto out;
3093 }
3094 return ret;
3095
3096 out:
3097 if (btdata->qca_dump.ram_dump_size)
3098 usb_enable_autosuspend(udev);
3099 btdata->qca_dump.ram_dump_size = 0;
3100 btdata->qca_dump.ram_dump_seqno = 0;
3101 clear_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags);
3102
3103 if (ret < 0)
3104 kfree_skb(skb);
3105 return ret;
3106 }
3107
3108 /* Return: true if the ACL packet is a dump packet, false otherwise. */
acl_pkt_is_dump_qca(struct hci_dev * hdev,struct sk_buff * skb)3109 static bool acl_pkt_is_dump_qca(struct hci_dev *hdev, struct sk_buff *skb)
3110 {
3111 struct hci_event_hdr *event_hdr;
3112 struct hci_acl_hdr *acl_hdr;
3113 struct qca_dump_hdr *dump_hdr;
3114 struct sk_buff *clone = skb_clone(skb, GFP_ATOMIC);
3115 bool is_dump = false;
3116
3117 if (!clone)
3118 return false;
3119
3120 acl_hdr = skb_pull_data(clone, sizeof(*acl_hdr));
3121 if (!acl_hdr || (le16_to_cpu(acl_hdr->handle) != QCA_MEMDUMP_ACL_HANDLE))
3122 goto out;
3123
3124 event_hdr = skb_pull_data(clone, sizeof(*event_hdr));
3125 if (!event_hdr || (event_hdr->evt != HCI_VENDOR_PKT))
3126 goto out;
3127
3128 dump_hdr = skb_pull_data(clone, sizeof(*dump_hdr));
3129 if (!dump_hdr || (dump_hdr->vse_class != QCA_MEMDUMP_VSE_CLASS) ||
3130 (dump_hdr->msg_type != QCA_MEMDUMP_MSG_TYPE))
3131 goto out;
3132
3133 is_dump = true;
3134 out:
3135 consume_skb(clone);
3136 return is_dump;
3137 }
3138
3139 /* Return: true if the event packet is a dump packet, false otherwise. */
evt_pkt_is_dump_qca(struct hci_dev * hdev,struct sk_buff * skb)3140 static bool evt_pkt_is_dump_qca(struct hci_dev *hdev, struct sk_buff *skb)
3141 {
3142 struct hci_event_hdr *event_hdr;
3143 struct qca_dump_hdr *dump_hdr;
3144 struct sk_buff *clone = skb_clone(skb, GFP_ATOMIC);
3145 bool is_dump = false;
3146
3147 if (!clone)
3148 return false;
3149
3150 event_hdr = skb_pull_data(clone, sizeof(*event_hdr));
3151 if (!event_hdr || (event_hdr->evt != HCI_VENDOR_PKT))
3152 goto out;
3153
3154 dump_hdr = skb_pull_data(clone, sizeof(*dump_hdr));
3155 if (!dump_hdr || (dump_hdr->vse_class != QCA_MEMDUMP_VSE_CLASS) ||
3156 (dump_hdr->msg_type != QCA_MEMDUMP_MSG_TYPE))
3157 goto out;
3158
3159 is_dump = true;
3160 out:
3161 consume_skb(clone);
3162 return is_dump;
3163 }
3164
btusb_recv_acl_qca(struct hci_dev * hdev,struct sk_buff * skb)3165 static int btusb_recv_acl_qca(struct hci_dev *hdev, struct sk_buff *skb)
3166 {
3167 if (acl_pkt_is_dump_qca(hdev, skb))
3168 return handle_dump_pkt_qca(hdev, skb);
3169 return hci_recv_frame(hdev, skb);
3170 }
3171
btusb_recv_evt_qca(struct hci_dev * hdev,struct sk_buff * skb)3172 static int btusb_recv_evt_qca(struct hci_dev *hdev, struct sk_buff *skb)
3173 {
3174 if (evt_pkt_is_dump_qca(hdev, skb))
3175 return handle_dump_pkt_qca(hdev, skb);
3176 return hci_recv_frame(hdev, skb);
3177 }
3178
3179
3180 #define QCA_DFU_PACKET_LEN 4096
3181
3182 #define QCA_GET_TARGET_VERSION 0x09
3183 #define QCA_CHECK_STATUS 0x05
3184 #define QCA_DFU_DOWNLOAD 0x01
3185
3186 #define QCA_SYSCFG_UPDATED 0x40
3187 #define QCA_PATCH_UPDATED 0x80
3188 #define QCA_DFU_TIMEOUT 3000
3189 #define QCA_FLAG_MULTI_NVM 0x80
3190 #define QCA_BT_RESET_WAIT_MS 100
3191
3192 #define WCN6855_2_0_RAM_VERSION_GF 0x400c1200
3193 #define WCN6855_2_1_RAM_VERSION_GF 0x400c1211
3194
3195 struct qca_version {
3196 __le32 rom_version;
3197 __le32 patch_version;
3198 __le32 ram_version;
3199 __u8 chip_id;
3200 __u8 platform_id;
3201 __le16 flag;
3202 __u8 reserved[4];
3203 } __packed;
3204
3205 struct qca_rampatch_version {
3206 __le16 rom_version_high;
3207 __le16 rom_version_low;
3208 __le16 patch_version;
3209 } __packed;
3210
3211 struct qca_device_info {
3212 u32 rom_version;
3213 u8 rampatch_hdr; /* length of header in rampatch */
3214 u8 nvm_hdr; /* length of header in NVM */
3215 u8 ver_offset; /* offset of version structure in rampatch */
3216 };
3217
3218 struct qca_custom_firmware {
3219 u32 rom_version;
3220 u16 board_id;
3221 const char *subdirectory;
3222 };
3223
3224 static const struct qca_device_info qca_devices_table[] = {
3225 { 0x00000100, 20, 4, 8 }, /* Rome 1.0 */
3226 { 0x00000101, 20, 4, 8 }, /* Rome 1.1 */
3227 { 0x00000200, 28, 4, 16 }, /* Rome 2.0 */
3228 { 0x00000201, 28, 4, 16 }, /* Rome 2.1 */
3229 { 0x00000300, 28, 4, 16 }, /* Rome 3.0 */
3230 { 0x00000302, 28, 4, 16 }, /* Rome 3.2 */
3231 { 0x00130100, 40, 4, 16 }, /* WCN6855 1.0 */
3232 { 0x00130200, 40, 4, 16 }, /* WCN6855 2.0 */
3233 { 0x00130201, 40, 4, 16 }, /* WCN6855 2.1 */
3234 { 0x00190200, 40, 4, 16 }, /* WCN785x 2.0 */
3235 };
3236
3237 static const struct qca_custom_firmware qca_custom_btfws[] = {
3238 { 0x00130201, 0x030A, "QCA2066" },
3239 { },
3240 };
3241
qca_extract_board_id(const struct qca_version * ver)3242 static u16 qca_extract_board_id(const struct qca_version *ver)
3243 {
3244 u16 flag = le16_to_cpu(ver->flag);
3245 u16 board_id = 0;
3246
3247 if (((flag >> 8) & 0xff) == QCA_FLAG_MULTI_NVM) {
3248 /* The board_id should be split into two bytes
3249 * The 1st byte is chip ID, and the 2nd byte is platform ID
3250 * For example, board ID 0x010A, 0x01 is platform ID. 0x0A is chip ID
3251 * we have several platforms, and platform IDs are continuously added
3252 * Platform ID:
3253 * 0x00 is for Mobile
3254 * 0x01 is for X86
3255 * 0x02 is for Automotive
3256 * 0x03 is for Consumer electronic
3257 */
3258 board_id = (ver->chip_id << 8) + ver->platform_id;
3259 }
3260
3261 /* Take 0xffff as invalid board ID */
3262 if (board_id == 0xffff)
3263 board_id = 0;
3264
3265 return board_id;
3266 }
3267
qca_get_fw_subdirectory(const struct qca_version * ver)3268 static const char *qca_get_fw_subdirectory(const struct qca_version *ver)
3269 {
3270 const struct qca_custom_firmware *ptr;
3271 u32 rom_ver;
3272 u16 board_id;
3273
3274 rom_ver = le32_to_cpu(ver->rom_version);
3275 board_id = qca_extract_board_id(ver);
3276 if (!board_id)
3277 return NULL;
3278
3279 for (ptr = qca_custom_btfws; ptr->rom_version; ptr++) {
3280 if (ptr->rom_version == rom_ver &&
3281 ptr->board_id == board_id)
3282 return ptr->subdirectory;
3283 }
3284
3285 return NULL;
3286 }
3287
btusb_qca_send_vendor_req(struct usb_device * udev,u8 request,void * data,u16 size)3288 static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request,
3289 void *data, u16 size)
3290 {
3291 int pipe, err;
3292 u8 *buf;
3293
3294 buf = kmalloc(size, GFP_KERNEL);
3295 if (!buf)
3296 return -ENOMEM;
3297
3298 /* Found some of USB hosts have IOT issues with ours so that we should
3299 * not wait until HCI layer is ready.
3300 */
3301 pipe = usb_rcvctrlpipe(udev, 0);
3302 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
3303 0, 0, buf, size, USB_CTRL_GET_TIMEOUT);
3304 if (err < 0) {
3305 dev_err(&udev->dev, "Failed to access otp area (%d)", err);
3306 goto done;
3307 }
3308
3309 memcpy(data, buf, size);
3310
3311 done:
3312 kfree(buf);
3313
3314 return err;
3315 }
3316
btusb_setup_qca_download_fw(struct hci_dev * hdev,const struct firmware * firmware,size_t hdr_size)3317 static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
3318 const struct firmware *firmware,
3319 size_t hdr_size)
3320 {
3321 struct btusb_data *btdata = hci_get_drvdata(hdev);
3322 struct usb_device *udev = btdata->udev;
3323 size_t count, size, sent = 0;
3324 int pipe, len, err;
3325 u8 *buf;
3326
3327 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
3328 if (!buf)
3329 return -ENOMEM;
3330
3331 count = firmware->size;
3332
3333 size = min_t(size_t, count, hdr_size);
3334 memcpy(buf, firmware->data, size);
3335
3336 /* USB patches should go down to controller through USB path
3337 * because binary format fits to go down through USB channel.
3338 * USB control path is for patching headers and USB bulk is for
3339 * patch body.
3340 */
3341 pipe = usb_sndctrlpipe(udev, 0);
3342 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
3343 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
3344 if (err < 0) {
3345 bt_dev_err(hdev, "Failed to send headers (%d)", err);
3346 goto done;
3347 }
3348
3349 sent += size;
3350 count -= size;
3351
3352 /* ep2 need time to switch from function acl to function dfu,
3353 * so we add 20ms delay here.
3354 */
3355 msleep(20);
3356
3357 while (count) {
3358 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
3359
3360 memcpy(buf, firmware->data + sent, size);
3361
3362 pipe = usb_sndbulkpipe(udev, 0x02);
3363 err = usb_bulk_msg(udev, pipe, buf, size, &len,
3364 QCA_DFU_TIMEOUT);
3365 if (err < 0) {
3366 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)",
3367 sent, firmware->size, err);
3368 break;
3369 }
3370
3371 if (size != len) {
3372 bt_dev_err(hdev, "Failed to get bulk buffer");
3373 err = -EILSEQ;
3374 break;
3375 }
3376
3377 sent += size;
3378 count -= size;
3379 }
3380
3381 done:
3382 kfree(buf);
3383 return err;
3384 }
3385
btusb_setup_qca_load_rampatch(struct hci_dev * hdev,struct qca_version * ver,const struct qca_device_info * info)3386 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
3387 struct qca_version *ver,
3388 const struct qca_device_info *info)
3389 {
3390 struct qca_rampatch_version *rver;
3391 const struct firmware *fw;
3392 const char *fw_subdir;
3393 u32 ver_rom, ver_patch, rver_rom;
3394 u16 rver_rom_low, rver_rom_high, rver_patch;
3395 char fwname[80];
3396 int err;
3397
3398 ver_rom = le32_to_cpu(ver->rom_version);
3399 ver_patch = le32_to_cpu(ver->patch_version);
3400
3401 fw_subdir = qca_get_fw_subdirectory(ver);
3402 if (fw_subdir)
3403 snprintf(fwname, sizeof(fwname), "qca/%s/rampatch_usb_%08x.bin",
3404 fw_subdir, ver_rom);
3405 else
3406 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin",
3407 ver_rom);
3408
3409 err = request_firmware(&fw, fwname, &hdev->dev);
3410 if (err) {
3411 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)",
3412 fwname, err);
3413 return err;
3414 }
3415
3416 bt_dev_info(hdev, "using rampatch file: %s", fwname);
3417
3418 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
3419 rver_rom_low = le16_to_cpu(rver->rom_version_low);
3420 rver_patch = le16_to_cpu(rver->patch_version);
3421
3422 if (ver_rom & ~0xffffU) {
3423 rver_rom_high = le16_to_cpu(rver->rom_version_high);
3424 rver_rom = rver_rom_high << 16 | rver_rom_low;
3425 } else {
3426 rver_rom = rver_rom_low;
3427 }
3428
3429 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, "
3430 "firmware rome 0x%x build 0x%x",
3431 rver_rom, rver_patch, ver_rom, ver_patch);
3432
3433 if (rver_rom != ver_rom || rver_patch <= ver_patch) {
3434 bt_dev_err(hdev, "rampatch file version did not match with firmware");
3435 err = -EINVAL;
3436 goto done;
3437 }
3438
3439 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
3440
3441 done:
3442 release_firmware(fw);
3443
3444 return err;
3445 }
3446
btusb_generate_qca_nvm_name(char * fwname,size_t max_size,const struct qca_version * ver)3447 static void btusb_generate_qca_nvm_name(char *fwname, size_t max_size,
3448 const struct qca_version *ver)
3449 {
3450 u32 rom_version = le32_to_cpu(ver->rom_version);
3451 const char *variant, *fw_subdir;
3452 int len;
3453 u16 board_id;
3454
3455 fw_subdir = qca_get_fw_subdirectory(ver);
3456 board_id = qca_extract_board_id(ver);
3457
3458 switch (le32_to_cpu(ver->ram_version)) {
3459 case WCN6855_2_0_RAM_VERSION_GF:
3460 case WCN6855_2_1_RAM_VERSION_GF:
3461 variant = "_gf";
3462 break;
3463 default:
3464 variant = NULL;
3465 break;
3466 }
3467
3468 if (fw_subdir)
3469 len = snprintf(fwname, max_size, "qca/%s/nvm_usb_%08x",
3470 fw_subdir, rom_version);
3471 else
3472 len = snprintf(fwname, max_size, "qca/nvm_usb_%08x",
3473 rom_version);
3474 if (variant)
3475 len += snprintf(fwname + len, max_size - len, "%s", variant);
3476 if (board_id)
3477 len += snprintf(fwname + len, max_size - len, "_%04x", board_id);
3478 len += snprintf(fwname + len, max_size - len, ".bin");
3479 }
3480
btusb_setup_qca_load_nvm(struct hci_dev * hdev,struct qca_version * ver,const struct qca_device_info * info)3481 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
3482 struct qca_version *ver,
3483 const struct qca_device_info *info)
3484 {
3485 const struct firmware *fw;
3486 char fwname[80];
3487 int err;
3488
3489 btusb_generate_qca_nvm_name(fwname, sizeof(fwname), ver);
3490
3491 err = request_firmware(&fw, fwname, &hdev->dev);
3492 if (err) {
3493 bt_dev_err(hdev, "failed to request NVM file: %s (%d)",
3494 fwname, err);
3495 return err;
3496 }
3497
3498 bt_dev_info(hdev, "using NVM file: %s", fwname);
3499
3500 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
3501
3502 release_firmware(fw);
3503
3504 return err;
3505 }
3506
3507 /* identify the ROM version and check whether patches are needed */
btusb_qca_need_patch(struct usb_device * udev)3508 static bool btusb_qca_need_patch(struct usb_device *udev)
3509 {
3510 struct qca_version ver;
3511
3512 if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3513 sizeof(ver)) < 0)
3514 return false;
3515 /* only low ROM versions need patches */
3516 return !(le32_to_cpu(ver.rom_version) & ~0xffffU);
3517 }
3518
btusb_setup_qca(struct hci_dev * hdev)3519 static int btusb_setup_qca(struct hci_dev *hdev)
3520 {
3521 struct btusb_data *btdata = hci_get_drvdata(hdev);
3522 struct usb_device *udev = btdata->udev;
3523 const struct qca_device_info *info = NULL;
3524 struct qca_version ver;
3525 u32 ver_rom;
3526 u8 status;
3527 int i, err;
3528
3529 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3530 sizeof(ver));
3531 if (err < 0)
3532 return err;
3533
3534 ver_rom = le32_to_cpu(ver.rom_version);
3535
3536 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
3537 if (ver_rom == qca_devices_table[i].rom_version)
3538 info = &qca_devices_table[i];
3539 }
3540 if (!info) {
3541 /* If the rom_version is not matched in the qca_devices_table
3542 * and the high ROM version is not zero, we assume this chip no
3543 * need to load the rampatch and nvm.
3544 */
3545 if (ver_rom & ~0xffffU)
3546 return 0;
3547
3548 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom);
3549 return -ENODEV;
3550 }
3551
3552 err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status,
3553 sizeof(status));
3554 if (err < 0)
3555 return err;
3556
3557 if (!(status & QCA_PATCH_UPDATED)) {
3558 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
3559 if (err < 0)
3560 return err;
3561 }
3562
3563 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3564 sizeof(ver));
3565 if (err < 0)
3566 return err;
3567
3568 btdata->qca_dump.fw_version = le32_to_cpu(ver.patch_version);
3569 btdata->qca_dump.controller_id = le32_to_cpu(ver.rom_version);
3570
3571 if (!(status & QCA_SYSCFG_UPDATED)) {
3572 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
3573 if (err < 0)
3574 return err;
3575
3576 /* WCN6855 2.1 and later will reset to apply firmware downloaded here, so
3577 * wait ~100ms for reset Done then go ahead, otherwise, it maybe
3578 * cause potential enable failure.
3579 */
3580 if (info->rom_version >= 0x00130201)
3581 msleep(QCA_BT_RESET_WAIT_MS);
3582 }
3583
3584 /* Mark HCI_OP_ENHANCED_SETUP_SYNC_CONN as broken as it doesn't seem to
3585 * work with the likes of HSP/HFP mSBC.
3586 */
3587 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN);
3588
3589 return 0;
3590 }
3591
__set_diag_interface(struct hci_dev * hdev)3592 static inline int __set_diag_interface(struct hci_dev *hdev)
3593 {
3594 struct btusb_data *data = hci_get_drvdata(hdev);
3595 struct usb_interface *intf = data->diag;
3596 int i;
3597
3598 if (!data->diag)
3599 return -ENODEV;
3600
3601 data->diag_tx_ep = NULL;
3602 data->diag_rx_ep = NULL;
3603
3604 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
3605 struct usb_endpoint_descriptor *ep_desc;
3606
3607 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
3608
3609 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
3610 data->diag_tx_ep = ep_desc;
3611 continue;
3612 }
3613
3614 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
3615 data->diag_rx_ep = ep_desc;
3616 continue;
3617 }
3618 }
3619
3620 if (!data->diag_tx_ep || !data->diag_rx_ep) {
3621 bt_dev_err(hdev, "invalid diagnostic descriptors");
3622 return -ENODEV;
3623 }
3624
3625 return 0;
3626 }
3627
alloc_diag_urb(struct hci_dev * hdev,bool enable)3628 static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable)
3629 {
3630 struct btusb_data *data = hci_get_drvdata(hdev);
3631 struct sk_buff *skb;
3632 struct urb *urb;
3633 unsigned int pipe;
3634
3635 if (!data->diag_tx_ep)
3636 return ERR_PTR(-ENODEV);
3637
3638 urb = usb_alloc_urb(0, GFP_KERNEL);
3639 if (!urb)
3640 return ERR_PTR(-ENOMEM);
3641
3642 skb = bt_skb_alloc(2, GFP_KERNEL);
3643 if (!skb) {
3644 usb_free_urb(urb);
3645 return ERR_PTR(-ENOMEM);
3646 }
3647
3648 skb_put_u8(skb, 0xf0);
3649 skb_put_u8(skb, enable);
3650
3651 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress);
3652
3653 usb_fill_bulk_urb(urb, data->udev, pipe,
3654 skb->data, skb->len, btusb_tx_complete, skb);
3655
3656 skb->dev = (void *)hdev;
3657
3658 return urb;
3659 }
3660
btusb_bcm_set_diag(struct hci_dev * hdev,bool enable)3661 static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable)
3662 {
3663 struct btusb_data *data = hci_get_drvdata(hdev);
3664 struct urb *urb;
3665
3666 if (!data->diag)
3667 return -ENODEV;
3668
3669 if (!test_bit(HCI_RUNNING, &hdev->flags))
3670 return -ENETDOWN;
3671
3672 urb = alloc_diag_urb(hdev, enable);
3673 if (IS_ERR(urb))
3674 return PTR_ERR(urb);
3675
3676 return submit_or_queue_tx_urb(hdev, urb);
3677 }
3678
3679 #ifdef CONFIG_PM
btusb_oob_wake_handler(int irq,void * priv)3680 static irqreturn_t btusb_oob_wake_handler(int irq, void *priv)
3681 {
3682 struct btusb_data *data = priv;
3683
3684 pm_wakeup_event(&data->udev->dev, 0);
3685 pm_system_wakeup();
3686
3687 /* Disable only if not already disabled (keep it balanced) */
3688 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
3689 disable_irq_nosync(irq);
3690 disable_irq_wake(irq);
3691 }
3692 return IRQ_HANDLED;
3693 }
3694
3695 static const struct of_device_id btusb_match_table[] = {
3696 { .compatible = "usb1286,204e" },
3697 { .compatible = "usbcf3,e300" }, /* QCA6174A */
3698 { .compatible = "usb4ca,301a" }, /* QCA6174A (Lite-On) */
3699 { }
3700 };
3701 MODULE_DEVICE_TABLE(of, btusb_match_table);
3702
3703 /* Use an oob wakeup pin? */
btusb_config_oob_wake(struct hci_dev * hdev)3704 static int btusb_config_oob_wake(struct hci_dev *hdev)
3705 {
3706 struct btusb_data *data = hci_get_drvdata(hdev);
3707 struct device *dev = &data->udev->dev;
3708 int irq, ret;
3709
3710 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
3711
3712 if (!of_match_device(btusb_match_table, dev))
3713 return 0;
3714
3715 /* Move on if no IRQ specified */
3716 irq = of_irq_get_byname(dev->of_node, "wakeup");
3717 if (irq <= 0) {
3718 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__);
3719 return 0;
3720 }
3721
3722 irq_set_status_flags(irq, IRQ_NOAUTOEN);
3723 ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler,
3724 0, "OOB Wake-on-BT", data);
3725 if (ret) {
3726 bt_dev_err(hdev, "%s: IRQ request failed", __func__);
3727 return ret;
3728 }
3729
3730 ret = device_init_wakeup(dev, true);
3731 if (ret) {
3732 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__);
3733 return ret;
3734 }
3735
3736 data->oob_wake_irq = irq;
3737 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq);
3738 return 0;
3739 }
3740 #endif
3741
btusb_check_needs_reset_resume(struct usb_interface * intf)3742 static void btusb_check_needs_reset_resume(struct usb_interface *intf)
3743 {
3744 if (dmi_check_system(btusb_needs_reset_resume_table))
3745 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
3746 }
3747
btusb_wakeup(struct hci_dev * hdev)3748 static bool btusb_wakeup(struct hci_dev *hdev)
3749 {
3750 struct btusb_data *data = hci_get_drvdata(hdev);
3751
3752 return device_may_wakeup(&data->udev->dev);
3753 }
3754
btusb_shutdown_qca(struct hci_dev * hdev)3755 static int btusb_shutdown_qca(struct hci_dev *hdev)
3756 {
3757 struct sk_buff *skb;
3758
3759 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
3760 if (IS_ERR(skb)) {
3761 bt_dev_err(hdev, "HCI reset during shutdown failed");
3762 return PTR_ERR(skb);
3763 }
3764 kfree_skb(skb);
3765
3766 return 0;
3767 }
3768
force_poll_sync_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)3769 static ssize_t force_poll_sync_read(struct file *file, char __user *user_buf,
3770 size_t count, loff_t *ppos)
3771 {
3772 struct btusb_data *data = file->private_data;
3773 char buf[3];
3774
3775 buf[0] = data->poll_sync ? 'Y' : 'N';
3776 buf[1] = '\n';
3777 buf[2] = '\0';
3778 return simple_read_from_buffer(user_buf, count, ppos, buf, 2);
3779 }
3780
force_poll_sync_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)3781 static ssize_t force_poll_sync_write(struct file *file,
3782 const char __user *user_buf,
3783 size_t count, loff_t *ppos)
3784 {
3785 struct btusb_data *data = file->private_data;
3786 bool enable;
3787 int err;
3788
3789 err = kstrtobool_from_user(user_buf, count, &enable);
3790 if (err)
3791 return err;
3792
3793 /* Only allow changes while the adapter is down */
3794 if (test_bit(HCI_UP, &data->hdev->flags))
3795 return -EPERM;
3796
3797 if (data->poll_sync == enable)
3798 return -EALREADY;
3799
3800 data->poll_sync = enable;
3801
3802 return count;
3803 }
3804
3805 static const struct file_operations force_poll_sync_fops = {
3806 .owner = THIS_MODULE,
3807 .open = simple_open,
3808 .read = force_poll_sync_read,
3809 .write = force_poll_sync_write,
3810 .llseek = default_llseek,
3811 };
3812
3813 #define BTUSB_HCI_DRV_OP_SUPPORTED_ALTSETTINGS \
3814 hci_opcode_pack(HCI_DRV_OGF_DRIVER_SPECIFIC, 0x0000)
3815 #define BTUSB_HCI_DRV_SUPPORTED_ALTSETTINGS_SIZE 0
3816 struct btusb_hci_drv_rp_supported_altsettings {
3817 __u8 num;
3818 __u8 altsettings[];
3819 } __packed;
3820
3821 #define BTUSB_HCI_DRV_OP_SWITCH_ALTSETTING \
3822 hci_opcode_pack(HCI_DRV_OGF_DRIVER_SPECIFIC, 0x0001)
3823 #define BTUSB_HCI_DRV_SWITCH_ALTSETTING_SIZE 1
3824 struct btusb_hci_drv_cmd_switch_altsetting {
3825 __u8 altsetting;
3826 } __packed;
3827
3828 static const struct {
3829 u16 opcode;
3830 const char *desc;
3831 } btusb_hci_drv_supported_commands[] = {
3832 /* Common commands */
3833 { HCI_DRV_OP_READ_INFO, "Read Info" },
3834
3835 /* Driver specific commands */
3836 { BTUSB_HCI_DRV_OP_SUPPORTED_ALTSETTINGS, "Supported Altsettings" },
3837 { BTUSB_HCI_DRV_OP_SWITCH_ALTSETTING, "Switch Altsetting" },
3838 };
btusb_hci_drv_read_info(struct hci_dev * hdev,void * data,u16 data_len)3839 static int btusb_hci_drv_read_info(struct hci_dev *hdev, void *data,
3840 u16 data_len)
3841 {
3842 struct hci_drv_rp_read_info *rp;
3843 size_t rp_size;
3844 int err, i;
3845 u16 opcode, num_supported_commands =
3846 ARRAY_SIZE(btusb_hci_drv_supported_commands);
3847
3848 rp_size = sizeof(*rp) + num_supported_commands * 2;
3849
3850 rp = kmalloc(rp_size, GFP_KERNEL);
3851 if (!rp)
3852 return -ENOMEM;
3853
3854 strscpy_pad(rp->driver_name, btusb_driver.name);
3855
3856 rp->num_supported_commands = cpu_to_le16(num_supported_commands);
3857 for (i = 0; i < num_supported_commands; i++) {
3858 opcode = btusb_hci_drv_supported_commands[i].opcode;
3859 bt_dev_info(hdev,
3860 "Supported HCI Drv command (0x%02x|0x%04x): %s",
3861 hci_opcode_ogf(opcode),
3862 hci_opcode_ocf(opcode),
3863 btusb_hci_drv_supported_commands[i].desc);
3864 rp->supported_commands[i] = cpu_to_le16(opcode);
3865 }
3866
3867 err = hci_drv_cmd_complete(hdev, HCI_DRV_OP_READ_INFO,
3868 HCI_DRV_STATUS_SUCCESS, rp, rp_size);
3869
3870 kfree(rp);
3871 return err;
3872 }
3873
btusb_hci_drv_supported_altsettings(struct hci_dev * hdev,void * data,u16 data_len)3874 static int btusb_hci_drv_supported_altsettings(struct hci_dev *hdev, void *data,
3875 u16 data_len)
3876 {
3877 struct btusb_data *drvdata = hci_get_drvdata(hdev);
3878 struct btusb_hci_drv_rp_supported_altsettings *rp;
3879 size_t rp_size;
3880 int err;
3881 u8 i;
3882
3883 /* There are at most 7 alt (0 - 6) */
3884 rp = kmalloc(sizeof(*rp) + 7, GFP_KERNEL);
3885 if (!rp)
3886 return -ENOMEM;
3887
3888 rp->num = 0;
3889 if (!drvdata->isoc)
3890 goto done;
3891
3892 for (i = 0; i <= 6; i++) {
3893 if (btusb_find_altsetting(drvdata, i))
3894 rp->altsettings[rp->num++] = i;
3895 }
3896
3897 done:
3898 rp_size = sizeof(*rp) + rp->num;
3899
3900 err = hci_drv_cmd_complete(hdev, BTUSB_HCI_DRV_OP_SUPPORTED_ALTSETTINGS,
3901 HCI_DRV_STATUS_SUCCESS, rp, rp_size);
3902 kfree(rp);
3903 return err;
3904 }
3905
btusb_hci_drv_switch_altsetting(struct hci_dev * hdev,void * data,u16 data_len)3906 static int btusb_hci_drv_switch_altsetting(struct hci_dev *hdev, void *data,
3907 u16 data_len)
3908 {
3909 struct btusb_hci_drv_cmd_switch_altsetting *cmd = data;
3910 u8 status;
3911
3912 if (cmd->altsetting > 6) {
3913 status = HCI_DRV_STATUS_INVALID_PARAMETERS;
3914 } else {
3915 if (btusb_switch_alt_setting(hdev, cmd->altsetting))
3916 status = HCI_DRV_STATUS_UNSPECIFIED_ERROR;
3917 else
3918 status = HCI_DRV_STATUS_SUCCESS;
3919 }
3920
3921 return hci_drv_cmd_status(hdev, BTUSB_HCI_DRV_OP_SWITCH_ALTSETTING,
3922 status);
3923 }
3924
3925 static const struct hci_drv_handler btusb_hci_drv_common_handlers[] = {
3926 { btusb_hci_drv_read_info, HCI_DRV_READ_INFO_SIZE },
3927 };
3928
3929 static const struct hci_drv_handler btusb_hci_drv_specific_handlers[] = {
3930 { btusb_hci_drv_supported_altsettings,
3931 BTUSB_HCI_DRV_SUPPORTED_ALTSETTINGS_SIZE },
3932 { btusb_hci_drv_switch_altsetting,
3933 BTUSB_HCI_DRV_SWITCH_ALTSETTING_SIZE },
3934 };
3935
3936 static struct hci_drv btusb_hci_drv = {
3937 .common_handler_count = ARRAY_SIZE(btusb_hci_drv_common_handlers),
3938 .common_handlers = btusb_hci_drv_common_handlers,
3939 .specific_handler_count = ARRAY_SIZE(btusb_hci_drv_specific_handlers),
3940 .specific_handlers = btusb_hci_drv_specific_handlers,
3941 };
3942
btusb_probe(struct usb_interface * intf,const struct usb_device_id * id)3943 static int btusb_probe(struct usb_interface *intf,
3944 const struct usb_device_id *id)
3945 {
3946 struct usb_endpoint_descriptor *ep_desc;
3947 struct gpio_desc *reset_gpio;
3948 struct btusb_data *data;
3949 struct hci_dev *hdev;
3950 unsigned ifnum_base;
3951 int i, err, priv_size;
3952
3953 BT_DBG("intf %p id %p", intf, id);
3954
3955 if ((id->driver_info & BTUSB_IFNUM_2) &&
3956 (intf->cur_altsetting->desc.bInterfaceNumber != 0) &&
3957 (intf->cur_altsetting->desc.bInterfaceNumber != 2))
3958 return -ENODEV;
3959
3960 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber;
3961
3962 if (!id->driver_info) {
3963 const struct usb_device_id *match;
3964
3965 match = usb_match_id(intf, quirks_table);
3966 if (match)
3967 id = match;
3968 }
3969
3970 if (id->driver_info == BTUSB_IGNORE)
3971 return -ENODEV;
3972
3973 if (id->driver_info & BTUSB_ATH3012) {
3974 struct usb_device *udev = interface_to_usbdev(intf);
3975
3976 /* Old firmware would otherwise let ath3k driver load
3977 * patch and sysconfig files
3978 */
3979 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 &&
3980 !btusb_qca_need_patch(udev))
3981 return -ENODEV;
3982 }
3983
3984 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
3985 if (!data)
3986 return -ENOMEM;
3987
3988 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
3989 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
3990
3991 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
3992 data->intr_ep = ep_desc;
3993 continue;
3994 }
3995
3996 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
3997 data->bulk_tx_ep = ep_desc;
3998 continue;
3999 }
4000
4001 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
4002 data->bulk_rx_ep = ep_desc;
4003 continue;
4004 }
4005 }
4006
4007 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
4008 return -ENODEV;
4009
4010 if (id->driver_info & BTUSB_AMP) {
4011 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
4012 data->cmdreq = 0x2b;
4013 } else {
4014 data->cmdreq_type = USB_TYPE_CLASS;
4015 data->cmdreq = 0x00;
4016 }
4017
4018 data->udev = interface_to_usbdev(intf);
4019 data->intf = intf;
4020
4021 INIT_WORK(&data->work, btusb_work);
4022 INIT_WORK(&data->waker, btusb_waker);
4023 INIT_DELAYED_WORK(&data->rx_work, btusb_rx_work);
4024
4025 skb_queue_head_init(&data->acl_q);
4026
4027 init_usb_anchor(&data->deferred);
4028 init_usb_anchor(&data->tx_anchor);
4029 spin_lock_init(&data->txlock);
4030
4031 init_usb_anchor(&data->intr_anchor);
4032 init_usb_anchor(&data->bulk_anchor);
4033 init_usb_anchor(&data->isoc_anchor);
4034 init_usb_anchor(&data->diag_anchor);
4035 init_usb_anchor(&data->ctrl_anchor);
4036 spin_lock_init(&data->rxlock);
4037
4038 priv_size = 0;
4039
4040 data->recv_event = hci_recv_frame;
4041 data->recv_bulk = btusb_recv_bulk;
4042
4043 if (id->driver_info & BTUSB_INTEL_COMBINED) {
4044 /* Allocate extra space for Intel device */
4045 priv_size += sizeof(struct btintel_data);
4046
4047 /* Override the rx handlers */
4048 data->recv_event = btintel_recv_event;
4049 data->recv_bulk = btusb_recv_bulk_intel;
4050 } else if (id->driver_info & BTUSB_REALTEK) {
4051 /* Allocate extra space for Realtek device */
4052 priv_size += sizeof(struct btrealtek_data);
4053
4054 data->recv_event = btusb_recv_event_realtek;
4055 } else if (id->driver_info & BTUSB_MEDIATEK) {
4056 /* Allocate extra space for Mediatek device */
4057 priv_size += sizeof(struct btmtk_data);
4058 }
4059
4060 data->recv_acl = hci_recv_frame;
4061
4062 hdev = hci_alloc_dev_priv(priv_size);
4063 if (!hdev)
4064 return -ENOMEM;
4065
4066 hdev->bus = HCI_USB;
4067 hci_set_drvdata(hdev, data);
4068
4069 data->hdev = hdev;
4070
4071 SET_HCIDEV_DEV(hdev, &intf->dev);
4072
4073 reset_gpio = gpiod_get_optional(&data->udev->dev, "reset",
4074 GPIOD_OUT_LOW);
4075 if (IS_ERR(reset_gpio)) {
4076 err = PTR_ERR(reset_gpio);
4077 goto out_free_dev;
4078 } else if (reset_gpio) {
4079 data->reset_gpio = reset_gpio;
4080 }
4081
4082 hdev->open = btusb_open;
4083 hdev->close = btusb_close;
4084 hdev->flush = btusb_flush;
4085 hdev->send = btusb_send_frame;
4086 hdev->notify = btusb_notify;
4087 hdev->wakeup = btusb_wakeup;
4088 hdev->hci_drv = &btusb_hci_drv;
4089
4090 #ifdef CONFIG_PM
4091 err = btusb_config_oob_wake(hdev);
4092 if (err)
4093 goto out_free_dev;
4094
4095 /* Marvell devices may need a specific chip configuration */
4096 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) {
4097 err = marvell_config_oob_wake(hdev);
4098 if (err)
4099 goto out_free_dev;
4100 }
4101 #endif
4102 if (id->driver_info & BTUSB_CW6622)
4103 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_STORED_LINK_KEY);
4104
4105 if (id->driver_info & BTUSB_BCM2045)
4106 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_STORED_LINK_KEY);
4107
4108 if (id->driver_info & BTUSB_BCM92035)
4109 hdev->setup = btusb_setup_bcm92035;
4110
4111 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
4112 (id->driver_info & BTUSB_BCM_PATCHRAM)) {
4113 hdev->manufacturer = 15;
4114 hdev->setup = btbcm_setup_patchram;
4115 hdev->set_diag = btusb_bcm_set_diag;
4116 hdev->set_bdaddr = btbcm_set_bdaddr;
4117
4118 /* Broadcom LM_DIAG Interface numbers are hardcoded */
4119 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
4120 }
4121
4122 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
4123 (id->driver_info & BTUSB_BCM_APPLE)) {
4124 hdev->manufacturer = 15;
4125 hdev->setup = btbcm_setup_apple;
4126 hdev->set_diag = btusb_bcm_set_diag;
4127
4128 /* Broadcom LM_DIAG Interface numbers are hardcoded */
4129 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
4130 }
4131
4132 /* Combined Intel Device setup to support multiple setup routine */
4133 if (id->driver_info & BTUSB_INTEL_COMBINED) {
4134 err = btintel_configure_setup(hdev, btusb_driver.name);
4135 if (err)
4136 goto out_free_dev;
4137
4138 /* Transport specific configuration */
4139 hdev->send = btusb_send_frame_intel;
4140 hdev->reset = btusb_intel_reset;
4141
4142 if (id->driver_info & BTUSB_INTEL_NO_WBS_SUPPORT)
4143 btintel_set_flag(hdev, INTEL_ROM_LEGACY_NO_WBS_SUPPORT);
4144
4145 if (id->driver_info & BTUSB_INTEL_BROKEN_INITIAL_NCMD)
4146 btintel_set_flag(hdev, INTEL_BROKEN_INITIAL_NCMD);
4147
4148 if (id->driver_info & BTUSB_INTEL_BROKEN_SHUTDOWN_LED)
4149 btintel_set_flag(hdev, INTEL_BROKEN_SHUTDOWN_LED);
4150 }
4151
4152 if (id->driver_info & BTUSB_MARVELL)
4153 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
4154
4155 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_MTK) &&
4156 (id->driver_info & BTUSB_MEDIATEK)) {
4157 hdev->setup = btusb_mtk_setup;
4158 hdev->shutdown = btusb_mtk_shutdown;
4159 hdev->manufacturer = 70;
4160 hdev->reset = btmtk_reset_sync;
4161 hdev->set_bdaddr = btmtk_set_bdaddr;
4162 hdev->send = btusb_send_frame_mtk;
4163 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN);
4164 hci_set_quirk(hdev, HCI_QUIRK_NON_PERSISTENT_SETUP);
4165 data->recv_acl = btmtk_usb_recv_acl;
4166 data->suspend = btmtk_usb_suspend;
4167 data->resume = btmtk_usb_resume;
4168 data->disconnect = btusb_mtk_disconnect;
4169 }
4170
4171 if (id->driver_info & BTUSB_SWAVE) {
4172 hci_set_quirk(hdev, HCI_QUIRK_FIXUP_INQUIRY_MODE);
4173 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_LOCAL_COMMANDS);
4174 }
4175
4176 if (id->driver_info & BTUSB_INTEL_BOOT) {
4177 hdev->manufacturer = 2;
4178 hci_set_quirk(hdev, HCI_QUIRK_RAW_DEVICE);
4179 }
4180
4181 if (id->driver_info & BTUSB_ATH3012) {
4182 data->setup_on_usb = btusb_setup_qca;
4183 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
4184 hci_set_quirk(hdev, HCI_QUIRK_SIMULTANEOUS_DISCOVERY);
4185 hci_set_quirk(hdev, HCI_QUIRK_STRICT_DUPLICATE_FILTER);
4186 }
4187
4188 if (id->driver_info & BTUSB_QCA_ROME) {
4189 data->setup_on_usb = btusb_setup_qca;
4190 hdev->shutdown = btusb_shutdown_qca;
4191 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
4192 hdev->reset = btusb_qca_reset;
4193 hci_set_quirk(hdev, HCI_QUIRK_SIMULTANEOUS_DISCOVERY);
4194 btusb_check_needs_reset_resume(intf);
4195 }
4196
4197 if (id->driver_info & BTUSB_QCA_WCN6855) {
4198 data->qca_dump.id_vendor = id->idVendor;
4199 data->qca_dump.id_product = id->idProduct;
4200 data->recv_event = btusb_recv_evt_qca;
4201 data->recv_acl = btusb_recv_acl_qca;
4202 hci_devcd_register(hdev, btusb_coredump_qca, btusb_dump_hdr_qca, NULL);
4203 data->setup_on_usb = btusb_setup_qca;
4204 hdev->shutdown = btusb_shutdown_qca;
4205 hdev->set_bdaddr = btusb_set_bdaddr_wcn6855;
4206 hdev->reset = btusb_qca_reset;
4207 hci_set_quirk(hdev, HCI_QUIRK_SIMULTANEOUS_DISCOVERY);
4208 hci_set_msft_opcode(hdev, 0xFD70);
4209 }
4210
4211 if (id->driver_info & BTUSB_AMP) {
4212 /* AMP controllers do not support SCO packets */
4213 data->isoc = NULL;
4214 } else {
4215 /* Interface orders are hardcoded in the specification */
4216 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1);
4217 data->isoc_ifnum = ifnum_base + 1;
4218 }
4219
4220 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_RTL) &&
4221 (id->driver_info & BTUSB_REALTEK)) {
4222 btrtl_set_driver_name(hdev, btusb_driver.name);
4223 hdev->setup = btusb_setup_realtek;
4224 hdev->shutdown = btrtl_shutdown_realtek;
4225 hdev->reset = btusb_rtl_reset;
4226 hdev->hw_error = btusb_rtl_hw_error;
4227
4228 /* Realtek devices need to set remote wakeup on auto-suspend */
4229 set_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags);
4230 set_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags);
4231 }
4232
4233 if (id->driver_info & BTUSB_ACTIONS_SEMI) {
4234 /* Support is advertised, but not implemented */
4235 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_ERR_DATA_REPORTING);
4236 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER);
4237 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_SET_RPA_TIMEOUT);
4238 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_EXT_SCAN);
4239 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_READ_ENC_KEY_SIZE);
4240 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_EXT_CREATE_CONN);
4241 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_WRITE_AUTH_PAYLOAD_TIMEOUT);
4242 }
4243
4244 if (!reset)
4245 hci_set_quirk(hdev, HCI_QUIRK_RESET_ON_CLOSE);
4246
4247 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
4248 if (!disable_scofix)
4249 hci_set_quirk(hdev, HCI_QUIRK_FIXUP_BUFFER_SIZE);
4250 }
4251
4252 if (id->driver_info & BTUSB_BROKEN_ISOC)
4253 data->isoc = NULL;
4254
4255 if (id->driver_info & BTUSB_WIDEBAND_SPEECH)
4256 hci_set_quirk(hdev, HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED);
4257
4258 if (id->driver_info & BTUSB_INVALID_LE_STATES)
4259 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_LE_STATES);
4260
4261 if (id->driver_info & BTUSB_DIGIANSWER) {
4262 data->cmdreq_type = USB_TYPE_VENDOR;
4263 hci_set_quirk(hdev, HCI_QUIRK_RESET_ON_CLOSE);
4264 }
4265
4266 if (id->driver_info & BTUSB_CSR) {
4267 struct usb_device *udev = data->udev;
4268 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
4269
4270 /* Old firmware would otherwise execute USB reset */
4271 if (bcdDevice < 0x117)
4272 hci_set_quirk(hdev, HCI_QUIRK_RESET_ON_CLOSE);
4273
4274 /* This must be set first in case we disable it for fakes */
4275 hci_set_quirk(hdev, HCI_QUIRK_SIMULTANEOUS_DISCOVERY);
4276
4277 /* Fake CSR devices with broken commands */
4278 if (le16_to_cpu(udev->descriptor.idVendor) == 0x0a12 &&
4279 le16_to_cpu(udev->descriptor.idProduct) == 0x0001)
4280 hdev->setup = btusb_setup_csr;
4281 }
4282
4283 if (id->driver_info & BTUSB_SNIFFER) {
4284 struct usb_device *udev = data->udev;
4285
4286 /* New sniffer firmware has crippled HCI interface */
4287 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
4288 hci_set_quirk(hdev, HCI_QUIRK_RAW_DEVICE);
4289 }
4290
4291 if (id->driver_info & BTUSB_INTEL_BOOT) {
4292 /* A bug in the bootloader causes that interrupt interface is
4293 * only enabled after receiving SetInterface(0, AltSetting=0).
4294 */
4295 err = usb_set_interface(data->udev, 0, 0);
4296 if (err < 0) {
4297 BT_ERR("failed to set interface 0, alt 0 %d", err);
4298 goto out_free_dev;
4299 }
4300 }
4301
4302 if (data->isoc) {
4303 err = usb_driver_claim_interface(&btusb_driver,
4304 data->isoc, data);
4305 if (err < 0)
4306 goto out_free_dev;
4307 }
4308
4309 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && data->diag) {
4310 if (!usb_driver_claim_interface(&btusb_driver,
4311 data->diag, data))
4312 __set_diag_interface(hdev);
4313 else
4314 data->diag = NULL;
4315 }
4316
4317 if (enable_autosuspend)
4318 usb_enable_autosuspend(data->udev);
4319
4320 data->poll_sync = enable_poll_sync;
4321
4322 err = hci_register_dev(hdev);
4323 if (err < 0)
4324 goto out_free_dev;
4325
4326 usb_set_intfdata(intf, data);
4327
4328 debugfs_create_file("force_poll_sync", 0644, hdev->debugfs, data,
4329 &force_poll_sync_fops);
4330
4331 return 0;
4332
4333 out_free_dev:
4334 if (data->reset_gpio)
4335 gpiod_put(data->reset_gpio);
4336 hci_free_dev(hdev);
4337 return err;
4338 }
4339
btusb_disconnect(struct usb_interface * intf)4340 static void btusb_disconnect(struct usb_interface *intf)
4341 {
4342 struct btusb_data *data = usb_get_intfdata(intf);
4343 struct hci_dev *hdev;
4344
4345 BT_DBG("intf %p", intf);
4346
4347 if (!data)
4348 return;
4349
4350 hdev = data->hdev;
4351 usb_set_intfdata(data->intf, NULL);
4352
4353 if (data->isoc)
4354 usb_set_intfdata(data->isoc, NULL);
4355
4356 if (data->diag)
4357 usb_set_intfdata(data->diag, NULL);
4358
4359 if (data->disconnect)
4360 data->disconnect(hdev);
4361
4362 hci_unregister_dev(hdev);
4363
4364 if (data->oob_wake_irq)
4365 device_init_wakeup(&data->udev->dev, false);
4366 if (data->reset_gpio)
4367 gpiod_put(data->reset_gpio);
4368
4369 if (intf == data->intf) {
4370 if (data->isoc)
4371 usb_driver_release_interface(&btusb_driver, data->isoc);
4372 if (data->diag)
4373 usb_driver_release_interface(&btusb_driver, data->diag);
4374 } else if (intf == data->isoc) {
4375 if (data->diag)
4376 usb_driver_release_interface(&btusb_driver, data->diag);
4377 usb_driver_release_interface(&btusb_driver, data->intf);
4378 } else if (intf == data->diag) {
4379 if (data->isoc)
4380 usb_driver_release_interface(&btusb_driver, data->isoc);
4381 usb_driver_release_interface(&btusb_driver, data->intf);
4382 }
4383
4384 hci_free_dev(hdev);
4385 }
4386
4387 #ifdef CONFIG_PM
btusb_suspend(struct usb_interface * intf,pm_message_t message)4388 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
4389 {
4390 struct btusb_data *data = usb_get_intfdata(intf);
4391
4392 BT_DBG("intf %p", intf);
4393
4394 /* Don't auto-suspend if there are connections; external suspend calls
4395 * shall never fail.
4396 */
4397 if (PMSG_IS_AUTO(message) && hci_conn_count(data->hdev))
4398 return -EBUSY;
4399
4400 if (data->suspend_count++)
4401 return 0;
4402
4403 spin_lock_irq(&data->txlock);
4404 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
4405 set_bit(BTUSB_SUSPENDING, &data->flags);
4406 spin_unlock_irq(&data->txlock);
4407 } else {
4408 spin_unlock_irq(&data->txlock);
4409 data->suspend_count--;
4410 return -EBUSY;
4411 }
4412
4413 cancel_work_sync(&data->work);
4414
4415 if (data->suspend)
4416 data->suspend(data->hdev);
4417
4418 btusb_stop_traffic(data);
4419 usb_kill_anchored_urbs(&data->tx_anchor);
4420
4421 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) {
4422 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
4423 enable_irq_wake(data->oob_wake_irq);
4424 enable_irq(data->oob_wake_irq);
4425 }
4426
4427 /* For global suspend, Realtek devices lose the loaded fw
4428 * in them. But for autosuspend, firmware should remain.
4429 * Actually, it depends on whether the usb host sends
4430 * set feature (enable wakeup) or not.
4431 */
4432 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) {
4433 if (PMSG_IS_AUTO(message) &&
4434 device_can_wakeup(&data->udev->dev))
4435 data->udev->do_remote_wakeup = 1;
4436 else if (!PMSG_IS_AUTO(message) &&
4437 !device_may_wakeup(&data->udev->dev)) {
4438 data->udev->do_remote_wakeup = 0;
4439 data->udev->reset_resume = 1;
4440 }
4441 }
4442
4443 return 0;
4444 }
4445
play_deferred(struct btusb_data * data)4446 static void play_deferred(struct btusb_data *data)
4447 {
4448 struct urb *urb;
4449 int err;
4450
4451 while ((urb = usb_get_from_anchor(&data->deferred))) {
4452 usb_anchor_urb(urb, &data->tx_anchor);
4453
4454 err = usb_submit_urb(urb, GFP_ATOMIC);
4455 if (err < 0) {
4456 if (err != -EPERM && err != -ENODEV)
4457 BT_ERR("%s urb %p submission failed (%d)",
4458 data->hdev->name, urb, -err);
4459 kfree(urb->setup_packet);
4460 usb_unanchor_urb(urb);
4461 usb_free_urb(urb);
4462 break;
4463 }
4464
4465 data->tx_in_flight++;
4466 usb_free_urb(urb);
4467 }
4468
4469 /* Cleanup the rest deferred urbs. */
4470 while ((urb = usb_get_from_anchor(&data->deferred))) {
4471 kfree(urb->setup_packet);
4472 usb_free_urb(urb);
4473 }
4474 }
4475
btusb_resume(struct usb_interface * intf)4476 static int btusb_resume(struct usb_interface *intf)
4477 {
4478 struct btusb_data *data = usb_get_intfdata(intf);
4479 struct hci_dev *hdev = data->hdev;
4480 int err = 0;
4481
4482 BT_DBG("intf %p", intf);
4483
4484 if (--data->suspend_count)
4485 return 0;
4486
4487 /* Disable only if not already disabled (keep it balanced) */
4488 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
4489 disable_irq(data->oob_wake_irq);
4490 disable_irq_wake(data->oob_wake_irq);
4491 }
4492
4493 if (!test_bit(HCI_RUNNING, &hdev->flags))
4494 goto done;
4495
4496 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
4497 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
4498 if (err < 0) {
4499 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
4500 goto failed;
4501 }
4502 }
4503
4504 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
4505 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
4506 if (err < 0) {
4507 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
4508 goto failed;
4509 }
4510
4511 btusb_submit_bulk_urb(hdev, GFP_NOIO);
4512 }
4513
4514 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
4515 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
4516 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
4517 else
4518 btusb_submit_isoc_urb(hdev, GFP_NOIO);
4519 }
4520
4521 if (data->resume)
4522 data->resume(hdev);
4523
4524 spin_lock_irq(&data->txlock);
4525 play_deferred(data);
4526 clear_bit(BTUSB_SUSPENDING, &data->flags);
4527 spin_unlock_irq(&data->txlock);
4528 schedule_work(&data->work);
4529
4530 return 0;
4531
4532 failed:
4533 usb_scuttle_anchored_urbs(&data->deferred);
4534 done:
4535 spin_lock_irq(&data->txlock);
4536 clear_bit(BTUSB_SUSPENDING, &data->flags);
4537 spin_unlock_irq(&data->txlock);
4538
4539 return err;
4540 }
4541 #endif
4542
4543 #ifdef CONFIG_DEV_COREDUMP
btusb_coredump(struct device * dev)4544 static void btusb_coredump(struct device *dev)
4545 {
4546 struct btusb_data *data = dev_get_drvdata(dev);
4547 struct hci_dev *hdev = data->hdev;
4548
4549 if (hdev->dump.coredump)
4550 hdev->dump.coredump(hdev);
4551 }
4552 #endif
4553
4554 static struct usb_driver btusb_driver = {
4555 .name = "btusb",
4556 .probe = btusb_probe,
4557 .disconnect = btusb_disconnect,
4558 #ifdef CONFIG_PM
4559 .suspend = btusb_suspend,
4560 .resume = btusb_resume,
4561 #endif
4562 .id_table = btusb_table,
4563 .supports_autosuspend = 1,
4564 .disable_hub_initiated_lpm = 1,
4565
4566 #ifdef CONFIG_DEV_COREDUMP
4567 .driver = {
4568 .coredump = btusb_coredump,
4569 },
4570 #endif
4571 };
4572
4573 module_usb_driver(btusb_driver);
4574
4575 module_param(disable_scofix, bool, 0644);
4576 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
4577
4578 module_param(force_scofix, bool, 0644);
4579 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
4580
4581 module_param(enable_autosuspend, bool, 0644);
4582 MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default");
4583
4584 module_param(reset, bool, 0644);
4585 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
4586
4587 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
4588 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
4589 MODULE_VERSION(VERSION);
4590 MODULE_LICENSE("GPL");
4591