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