1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 *
4 * Generic Bluetooth USB driver
5 *
6 * Copyright (C) 2005-2008 Marcel Holtmann <marcel@holtmann.org>
7 */
8
9 #include <linux/dmi.h>
10 #include <linux/module.h>
11 #include <linux/usb.h>
12 #include <linux/usb/quirks.h>
13 #include <linux/firmware.h>
14 #include <linux/iopoll.h>
15 #include <linux/of_device.h>
16 #include <linux/of_irq.h>
17 #include <linux/suspend.h>
18 #include <linux/gpio/consumer.h>
19 #include <linux/debugfs.h>
20 #include <linux/unaligned.h>
21
22 #include <net/bluetooth/bluetooth.h>
23 #include <net/bluetooth/hci_core.h>
24
25 #include "btintel.h"
26 #include "btbcm.h"
27 #include "btrtl.h"
28 #include "btmtk.h"
29
30 #define VERSION "0.8"
31
32 static bool disable_scofix;
33 static bool force_scofix;
34 static bool enable_autosuspend = IS_ENABLED(CONFIG_BT_HCIBTUSB_AUTOSUSPEND);
35 static bool enable_poll_sync = IS_ENABLED(CONFIG_BT_HCIBTUSB_POLL_SYNC);
36 static bool reset = true;
37 static bool auto_isoc_alt = IS_ENABLED(CONFIG_BT_HCIBTUSB_AUTO_ISOC_ALT);
38
39 static struct usb_driver btusb_driver;
40
41 #define BTUSB_IGNORE BIT(0)
42 #define BTUSB_DIGIANSWER BIT(1)
43 #define BTUSB_CSR BIT(2)
44 #define BTUSB_SNIFFER BIT(3)
45 #define BTUSB_BCM92035 BIT(4)
46 #define BTUSB_BROKEN_ISOC BIT(5)
47 #define BTUSB_WRONG_SCO_MTU BIT(6)
48 #define BTUSB_ATH3012 BIT(7)
49 #define BTUSB_INTEL_COMBINED BIT(8)
50 #define BTUSB_INTEL_BOOT BIT(9)
51 #define BTUSB_BCM_PATCHRAM BIT(10)
52 #define BTUSB_MARVELL BIT(11)
53 #define BTUSB_SWAVE BIT(12)
54 #define BTUSB_AMP BIT(13)
55 #define BTUSB_QCA_ROME BIT(14)
56 #define BTUSB_BCM_APPLE BIT(15)
57 #define BTUSB_REALTEK BIT(16)
58 #define BTUSB_BCM2045 BIT(17)
59 #define BTUSB_IFNUM_2 BIT(18)
60 #define BTUSB_CW6622 BIT(19)
61 #define BTUSB_MEDIATEK BIT(20)
62 #define BTUSB_WIDEBAND_SPEECH BIT(21)
63 #define BTUSB_INVALID_LE_STATES BIT(22)
64 #define BTUSB_QCA_WCN6855 BIT(23)
65 #define BTUSB_INTEL_BROKEN_SHUTDOWN_LED BIT(24)
66 #define BTUSB_INTEL_BROKEN_INITIAL_NCMD BIT(25)
67 #define BTUSB_INTEL_NO_WBS_SUPPORT BIT(26)
68 #define BTUSB_ACTIONS_SEMI BIT(27)
69
70 static const struct usb_device_id btusb_table[] = {
71 /* Generic Bluetooth USB device */
72 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
73
74 /* Generic Bluetooth AMP device */
75 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP },
76
77 /* Generic Bluetooth USB interface */
78 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) },
79
80 /* Apple-specific (Broadcom) devices */
81 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01),
82 .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 },
83
84 /* MediaTek MT76x0E */
85 { USB_DEVICE(0x0e8d, 0x763f) },
86
87 /* Broadcom SoftSailing reporting vendor specific */
88 { USB_DEVICE(0x0a5c, 0x21e1) },
89
90 /* Apple MacBookPro 7,1 */
91 { USB_DEVICE(0x05ac, 0x8213) },
92
93 /* Apple iMac11,1 */
94 { USB_DEVICE(0x05ac, 0x8215) },
95
96 /* Apple MacBookPro6,2 */
97 { USB_DEVICE(0x05ac, 0x8218) },
98
99 /* Apple MacBookAir3,1, MacBookAir3,2 */
100 { USB_DEVICE(0x05ac, 0x821b) },
101
102 /* Apple MacBookAir4,1 */
103 { USB_DEVICE(0x05ac, 0x821f) },
104
105 /* Apple MacBookPro8,2 */
106 { USB_DEVICE(0x05ac, 0x821a) },
107
108 /* Apple MacMini5,1 */
109 { USB_DEVICE(0x05ac, 0x8281) },
110
111 /* AVM BlueFRITZ! USB v2.0 */
112 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE },
113
114 /* Bluetooth Ultraport Module from IBM */
115 { USB_DEVICE(0x04bf, 0x030a) },
116
117 /* ALPS Modules with non-standard id */
118 { USB_DEVICE(0x044e, 0x3001) },
119 { USB_DEVICE(0x044e, 0x3002) },
120
121 /* Ericsson with non-standard id */
122 { USB_DEVICE(0x0bdb, 0x1002) },
123
124 /* Canyon CN-BTU1 with HID interfaces */
125 { USB_DEVICE(0x0c10, 0x0000) },
126
127 /* Broadcom BCM20702B0 (Dynex/Insignia) */
128 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM },
129
130 /* Broadcom BCM43142A0 (Foxconn/Lenovo) */
131 { USB_VENDOR_AND_INTERFACE_INFO(0x105b, 0xff, 0x01, 0x01),
132 .driver_info = BTUSB_BCM_PATCHRAM },
133
134 /* Broadcom BCM920703 (HTC Vive) */
135 { USB_VENDOR_AND_INTERFACE_INFO(0x0bb4, 0xff, 0x01, 0x01),
136 .driver_info = BTUSB_BCM_PATCHRAM },
137
138 /* Foxconn - Hon Hai */
139 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01),
140 .driver_info = BTUSB_BCM_PATCHRAM },
141
142 /* Lite-On Technology - Broadcom based */
143 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01),
144 .driver_info = BTUSB_BCM_PATCHRAM },
145
146 /* Broadcom devices with vendor specific id */
147 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01),
148 .driver_info = BTUSB_BCM_PATCHRAM },
149
150 /* ASUSTek Computer - Broadcom based */
151 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01),
152 .driver_info = BTUSB_BCM_PATCHRAM },
153
154 /* Belkin F8065bf - Broadcom based */
155 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01),
156 .driver_info = BTUSB_BCM_PATCHRAM },
157
158 /* IMC Networks - Broadcom based */
159 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01),
160 .driver_info = BTUSB_BCM_PATCHRAM },
161
162 /* Dell Computer - Broadcom based */
163 { USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01),
164 .driver_info = BTUSB_BCM_PATCHRAM },
165
166 /* Toshiba Corp - Broadcom based */
167 { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01),
168 .driver_info = BTUSB_BCM_PATCHRAM },
169
170 /* Intel Bluetooth USB Bootloader (RAM module) */
171 { USB_DEVICE(0x8087, 0x0a5a),
172 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
173
174 { } /* Terminating entry */
175 };
176
177 MODULE_DEVICE_TABLE(usb, btusb_table);
178
179 static const struct usb_device_id quirks_table[] = {
180 /* CSR BlueCore devices */
181 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
182
183 /* Broadcom BCM2033 without firmware */
184 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
185
186 /* Broadcom BCM2045 devices */
187 { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 },
188
189 /* Atheros 3011 with sflash firmware */
190 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
191 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
192 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE },
193 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
194 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
195 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
196 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
197
198 /* Atheros AR9285 Malbec with sflash firmware */
199 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
200
201 /* Atheros 3012 with sflash firmware */
202 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
203 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
204 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
205 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
206 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
207 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
208 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
209 { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 },
210 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
211 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
212 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
213 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
214 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
215 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
216 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
217 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
218 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
219 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
220 { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 },
221 { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 },
222 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
223 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
224 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
225 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
226 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
227 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
228 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
229 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
230 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
231 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
232 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
233 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
234 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
235 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 },
236 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
237 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
238 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
239 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
240 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
241 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
242 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
243 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 },
244 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
245 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
246 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
247 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
248 { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 },
249 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
250 { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 },
251 { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 },
252
253 /* Atheros AR5BBU12 with sflash firmware */
254 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
255
256 /* Atheros AR5BBU12 with sflash firmware */
257 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
258 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
259
260 /* QCA ROME chipset */
261 { USB_DEVICE(0x0cf3, 0x535b), .driver_info = BTUSB_QCA_ROME |
262 BTUSB_WIDEBAND_SPEECH },
263 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME |
264 BTUSB_WIDEBAND_SPEECH },
265 { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME |
266 BTUSB_WIDEBAND_SPEECH },
267 { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME |
268 BTUSB_WIDEBAND_SPEECH },
269 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME |
270 BTUSB_WIDEBAND_SPEECH },
271 { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME |
272 BTUSB_WIDEBAND_SPEECH },
273 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME |
274 BTUSB_WIDEBAND_SPEECH },
275 { USB_DEVICE(0x0cf3, 0xe500), .driver_info = BTUSB_QCA_ROME |
276 BTUSB_WIDEBAND_SPEECH },
277 { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME |
278 BTUSB_WIDEBAND_SPEECH },
279 { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME |
280 BTUSB_WIDEBAND_SPEECH },
281 { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME |
282 BTUSB_WIDEBAND_SPEECH },
283 { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME |
284 BTUSB_WIDEBAND_SPEECH },
285 { USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME |
286 BTUSB_WIDEBAND_SPEECH },
287 { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME |
288 BTUSB_WIDEBAND_SPEECH },
289 { USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME |
290 BTUSB_WIDEBAND_SPEECH },
291 { USB_DEVICE(0x04ca, 0x3021), .driver_info = BTUSB_QCA_ROME |
292 BTUSB_WIDEBAND_SPEECH },
293 { USB_DEVICE(0x13d3, 0x3491), .driver_info = BTUSB_QCA_ROME |
294 BTUSB_WIDEBAND_SPEECH },
295 { USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME |
296 BTUSB_WIDEBAND_SPEECH },
297 { USB_DEVICE(0x13d3, 0x3501), .driver_info = BTUSB_QCA_ROME |
298 BTUSB_WIDEBAND_SPEECH },
299
300 /* QCA WCN6855 chipset */
301 { USB_DEVICE(0x0cf3, 0xe600), .driver_info = BTUSB_QCA_WCN6855 |
302 BTUSB_WIDEBAND_SPEECH },
303 { USB_DEVICE(0x0489, 0xe0cc), .driver_info = BTUSB_QCA_WCN6855 |
304 BTUSB_WIDEBAND_SPEECH },
305 { USB_DEVICE(0x0489, 0xe0d6), .driver_info = BTUSB_QCA_WCN6855 |
306 BTUSB_WIDEBAND_SPEECH },
307 { USB_DEVICE(0x0489, 0xe0e3), .driver_info = BTUSB_QCA_WCN6855 |
308 BTUSB_WIDEBAND_SPEECH },
309 { USB_DEVICE(0x10ab, 0x9309), .driver_info = BTUSB_QCA_WCN6855 |
310 BTUSB_WIDEBAND_SPEECH },
311 { USB_DEVICE(0x10ab, 0x9409), .driver_info = BTUSB_QCA_WCN6855 |
312 BTUSB_WIDEBAND_SPEECH },
313 { USB_DEVICE(0x0489, 0xe0d0), .driver_info = BTUSB_QCA_WCN6855 |
314 BTUSB_WIDEBAND_SPEECH },
315 { USB_DEVICE(0x10ab, 0x9108), .driver_info = BTUSB_QCA_WCN6855 |
316 BTUSB_WIDEBAND_SPEECH },
317 { USB_DEVICE(0x10ab, 0x9109), .driver_info = BTUSB_QCA_WCN6855 |
318 BTUSB_WIDEBAND_SPEECH },
319 { USB_DEVICE(0x10ab, 0x9208), .driver_info = BTUSB_QCA_WCN6855 |
320 BTUSB_WIDEBAND_SPEECH },
321 { USB_DEVICE(0x10ab, 0x9209), .driver_info = BTUSB_QCA_WCN6855 |
322 BTUSB_WIDEBAND_SPEECH },
323 { USB_DEVICE(0x10ab, 0x9308), .driver_info = BTUSB_QCA_WCN6855 |
324 BTUSB_WIDEBAND_SPEECH },
325 { USB_DEVICE(0x10ab, 0x9408), .driver_info = BTUSB_QCA_WCN6855 |
326 BTUSB_WIDEBAND_SPEECH },
327 { USB_DEVICE(0x10ab, 0x9508), .driver_info = BTUSB_QCA_WCN6855 |
328 BTUSB_WIDEBAND_SPEECH },
329 { USB_DEVICE(0x10ab, 0x9509), .driver_info = BTUSB_QCA_WCN6855 |
330 BTUSB_WIDEBAND_SPEECH },
331 { USB_DEVICE(0x10ab, 0x9608), .driver_info = BTUSB_QCA_WCN6855 |
332 BTUSB_WIDEBAND_SPEECH },
333 { USB_DEVICE(0x10ab, 0x9609), .driver_info = BTUSB_QCA_WCN6855 |
334 BTUSB_WIDEBAND_SPEECH },
335 { USB_DEVICE(0x10ab, 0x9f09), .driver_info = BTUSB_QCA_WCN6855 |
336 BTUSB_WIDEBAND_SPEECH },
337 { USB_DEVICE(0x04ca, 0x3022), .driver_info = BTUSB_QCA_WCN6855 |
338 BTUSB_WIDEBAND_SPEECH },
339 { USB_DEVICE(0x0489, 0xe0c7), .driver_info = BTUSB_QCA_WCN6855 |
340 BTUSB_WIDEBAND_SPEECH },
341 { USB_DEVICE(0x0489, 0xe0c9), .driver_info = BTUSB_QCA_WCN6855 |
342 BTUSB_WIDEBAND_SPEECH },
343 { USB_DEVICE(0x0489, 0xe0ca), .driver_info = BTUSB_QCA_WCN6855 |
344 BTUSB_WIDEBAND_SPEECH },
345 { USB_DEVICE(0x0489, 0xe0cb), .driver_info = BTUSB_QCA_WCN6855 |
346 BTUSB_WIDEBAND_SPEECH },
347 { USB_DEVICE(0x0489, 0xe0ce), .driver_info = BTUSB_QCA_WCN6855 |
348 BTUSB_WIDEBAND_SPEECH },
349 { USB_DEVICE(0x0489, 0xe0de), .driver_info = BTUSB_QCA_WCN6855 |
350 BTUSB_WIDEBAND_SPEECH },
351 { USB_DEVICE(0x0489, 0xe0df), .driver_info = BTUSB_QCA_WCN6855 |
352 BTUSB_WIDEBAND_SPEECH },
353 { USB_DEVICE(0x0489, 0xe0e1), .driver_info = BTUSB_QCA_WCN6855 |
354 BTUSB_WIDEBAND_SPEECH },
355 { USB_DEVICE(0x0489, 0xe0ea), .driver_info = BTUSB_QCA_WCN6855 |
356 BTUSB_WIDEBAND_SPEECH },
357 { USB_DEVICE(0x0489, 0xe0ec), .driver_info = BTUSB_QCA_WCN6855 |
358 BTUSB_WIDEBAND_SPEECH },
359 { USB_DEVICE(0x04ca, 0x3023), .driver_info = BTUSB_QCA_WCN6855 |
360 BTUSB_WIDEBAND_SPEECH },
361 { USB_DEVICE(0x04ca, 0x3024), .driver_info = BTUSB_QCA_WCN6855 |
362 BTUSB_WIDEBAND_SPEECH },
363 { USB_DEVICE(0x04ca, 0x3a22), .driver_info = BTUSB_QCA_WCN6855 |
364 BTUSB_WIDEBAND_SPEECH },
365 { USB_DEVICE(0x04ca, 0x3a24), .driver_info = BTUSB_QCA_WCN6855 |
366 BTUSB_WIDEBAND_SPEECH },
367 { USB_DEVICE(0x04ca, 0x3a26), .driver_info = BTUSB_QCA_WCN6855 |
368 BTUSB_WIDEBAND_SPEECH },
369 { USB_DEVICE(0x04ca, 0x3a27), .driver_info = BTUSB_QCA_WCN6855 |
370 BTUSB_WIDEBAND_SPEECH },
371
372 /* QCA WCN785x chipset */
373 { USB_DEVICE(0x0cf3, 0xe700), .driver_info = BTUSB_QCA_WCN6855 |
374 BTUSB_WIDEBAND_SPEECH },
375 { USB_DEVICE(0x0489, 0xe0fc), .driver_info = BTUSB_QCA_WCN6855 |
376 BTUSB_WIDEBAND_SPEECH },
377 { USB_DEVICE(0x0489, 0xe0f3), .driver_info = BTUSB_QCA_WCN6855 |
378 BTUSB_WIDEBAND_SPEECH },
379 { USB_DEVICE(0x13d3, 0x3623), .driver_info = BTUSB_QCA_WCN6855 |
380 BTUSB_WIDEBAND_SPEECH },
381 { USB_DEVICE(0x2c7c, 0x0130), .driver_info = BTUSB_QCA_WCN6855 |
382 BTUSB_WIDEBAND_SPEECH },
383
384 /* Broadcom BCM2035 */
385 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
386 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
387 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
388
389 /* Broadcom BCM2045 */
390 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
391 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
392
393 /* IBM/Lenovo ThinkPad with Broadcom chip */
394 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
395 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
396
397 /* HP laptop with Broadcom chip */
398 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
399
400 /* Dell laptop with Broadcom chip */
401 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
402
403 /* Dell Wireless 370 and 410 devices */
404 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
405 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
406
407 /* Belkin F8T012 and F8T013 devices */
408 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
409 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
410
411 /* Asus WL-BTD202 device */
412 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
413
414 /* Kensington Bluetooth USB adapter */
415 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
416
417 /* RTX Telecom based adapters with buggy SCO support */
418 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
419 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
420
421 /* CONWISE Technology based adapters with buggy SCO support */
422 { USB_DEVICE(0x0e5e, 0x6622),
423 .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622},
424
425 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
426 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE },
427
428 /* Digianswer devices */
429 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
430 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
431
432 /* CSR BlueCore Bluetooth Sniffer */
433 { USB_DEVICE(0x0a12, 0x0002),
434 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
435
436 /* Frontline ComProbe Bluetooth Sniffer */
437 { USB_DEVICE(0x16d3, 0x0002),
438 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
439
440 /* Marvell Bluetooth devices */
441 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
442 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
443 { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL },
444
445 /* Intel Bluetooth devices */
446 { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_COMBINED },
447 { USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_COMBINED },
448 { USB_DEVICE(0x8087, 0x0029), .driver_info = BTUSB_INTEL_COMBINED },
449 { USB_DEVICE(0x8087, 0x0032), .driver_info = BTUSB_INTEL_COMBINED },
450 { USB_DEVICE(0x8087, 0x0033), .driver_info = BTUSB_INTEL_COMBINED },
451 { USB_DEVICE(0x8087, 0x0035), .driver_info = BTUSB_INTEL_COMBINED },
452 { USB_DEVICE(0x8087, 0x0036), .driver_info = BTUSB_INTEL_COMBINED },
453 { USB_DEVICE(0x8087, 0x0037), .driver_info = BTUSB_INTEL_COMBINED },
454 { USB_DEVICE(0x8087, 0x0038), .driver_info = BTUSB_INTEL_COMBINED },
455 { USB_DEVICE(0x8087, 0x0039), .driver_info = BTUSB_INTEL_COMBINED },
456 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
457 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL_COMBINED |
458 BTUSB_INTEL_NO_WBS_SUPPORT |
459 BTUSB_INTEL_BROKEN_INITIAL_NCMD |
460 BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
461 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL_COMBINED |
462 BTUSB_INTEL_NO_WBS_SUPPORT |
463 BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
464 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_COMBINED },
465 { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL_COMBINED |
466 BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
467 { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_COMBINED },
468
469 /* Other Intel Bluetooth devices */
470 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
471 .driver_info = BTUSB_IGNORE },
472
473 /* Realtek 8821CE Bluetooth devices */
474 { USB_DEVICE(0x13d3, 0x3529), .driver_info = BTUSB_REALTEK |
475 BTUSB_WIDEBAND_SPEECH },
476
477 /* Realtek 8822CE Bluetooth devices */
478 { USB_DEVICE(0x0bda, 0xb00c), .driver_info = BTUSB_REALTEK |
479 BTUSB_WIDEBAND_SPEECH },
480 { USB_DEVICE(0x0bda, 0xc822), .driver_info = BTUSB_REALTEK |
481 BTUSB_WIDEBAND_SPEECH },
482
483 /* Realtek 8822CU Bluetooth devices */
484 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK |
485 BTUSB_WIDEBAND_SPEECH },
486
487 /* Realtek 8851BE Bluetooth devices */
488 { USB_DEVICE(0x13d3, 0x3600), .driver_info = BTUSB_REALTEK },
489
490 /* Realtek 8852AE Bluetooth devices */
491 { USB_DEVICE(0x0bda, 0x2852), .driver_info = BTUSB_REALTEK |
492 BTUSB_WIDEBAND_SPEECH },
493 { USB_DEVICE(0x0bda, 0xc852), .driver_info = BTUSB_REALTEK |
494 BTUSB_WIDEBAND_SPEECH },
495 { USB_DEVICE(0x0bda, 0x385a), .driver_info = BTUSB_REALTEK |
496 BTUSB_WIDEBAND_SPEECH },
497 { USB_DEVICE(0x0bda, 0x4852), .driver_info = BTUSB_REALTEK |
498 BTUSB_WIDEBAND_SPEECH },
499 { USB_DEVICE(0x04c5, 0x165c), .driver_info = BTUSB_REALTEK |
500 BTUSB_WIDEBAND_SPEECH },
501 { USB_DEVICE(0x04ca, 0x4006), .driver_info = BTUSB_REALTEK |
502 BTUSB_WIDEBAND_SPEECH },
503 { USB_DEVICE(0x0cb8, 0xc549), .driver_info = BTUSB_REALTEK |
504 BTUSB_WIDEBAND_SPEECH },
505
506 /* Realtek 8852CE Bluetooth devices */
507 { USB_DEVICE(0x04ca, 0x4007), .driver_info = BTUSB_REALTEK |
508 BTUSB_WIDEBAND_SPEECH },
509 { USB_DEVICE(0x04c5, 0x1675), .driver_info = BTUSB_REALTEK |
510 BTUSB_WIDEBAND_SPEECH },
511 { USB_DEVICE(0x0cb8, 0xc558), .driver_info = BTUSB_REALTEK |
512 BTUSB_WIDEBAND_SPEECH },
513 { USB_DEVICE(0x13d3, 0x3587), .driver_info = BTUSB_REALTEK |
514 BTUSB_WIDEBAND_SPEECH },
515 { USB_DEVICE(0x13d3, 0x3586), .driver_info = BTUSB_REALTEK |
516 BTUSB_WIDEBAND_SPEECH },
517 { USB_DEVICE(0x13d3, 0x3592), .driver_info = BTUSB_REALTEK |
518 BTUSB_WIDEBAND_SPEECH },
519 { USB_DEVICE(0x0489, 0xe122), .driver_info = BTUSB_REALTEK |
520 BTUSB_WIDEBAND_SPEECH },
521
522 /* Realtek 8852BE Bluetooth devices */
523 { USB_DEVICE(0x0cb8, 0xc559), .driver_info = BTUSB_REALTEK |
524 BTUSB_WIDEBAND_SPEECH },
525 { USB_DEVICE(0x0bda, 0x4853), .driver_info = BTUSB_REALTEK |
526 BTUSB_WIDEBAND_SPEECH },
527 { USB_DEVICE(0x0bda, 0x887b), .driver_info = BTUSB_REALTEK |
528 BTUSB_WIDEBAND_SPEECH },
529 { USB_DEVICE(0x0bda, 0xb85b), .driver_info = BTUSB_REALTEK |
530 BTUSB_WIDEBAND_SPEECH },
531 { USB_DEVICE(0x13d3, 0x3570), .driver_info = BTUSB_REALTEK |
532 BTUSB_WIDEBAND_SPEECH },
533 { USB_DEVICE(0x13d3, 0x3571), .driver_info = BTUSB_REALTEK |
534 BTUSB_WIDEBAND_SPEECH },
535 { USB_DEVICE(0x13d3, 0x3572), .driver_info = BTUSB_REALTEK |
536 BTUSB_WIDEBAND_SPEECH },
537 { USB_DEVICE(0x13d3, 0x3591), .driver_info = BTUSB_REALTEK |
538 BTUSB_WIDEBAND_SPEECH },
539 { USB_DEVICE(0x0489, 0xe123), .driver_info = BTUSB_REALTEK |
540 BTUSB_WIDEBAND_SPEECH },
541 { USB_DEVICE(0x0489, 0xe125), .driver_info = BTUSB_REALTEK |
542 BTUSB_WIDEBAND_SPEECH },
543
544 /* Realtek 8852BT/8852BE-VT Bluetooth devices */
545 { USB_DEVICE(0x0bda, 0x8520), .driver_info = BTUSB_REALTEK |
546 BTUSB_WIDEBAND_SPEECH },
547
548 /* Realtek 8922AE Bluetooth devices */
549 { USB_DEVICE(0x0bda, 0x8922), .driver_info = BTUSB_REALTEK |
550 BTUSB_WIDEBAND_SPEECH },
551 { USB_DEVICE(0x13d3, 0x3617), .driver_info = BTUSB_REALTEK |
552 BTUSB_WIDEBAND_SPEECH },
553 { USB_DEVICE(0x13d3, 0x3616), .driver_info = BTUSB_REALTEK |
554 BTUSB_WIDEBAND_SPEECH },
555 { USB_DEVICE(0x0489, 0xe130), .driver_info = BTUSB_REALTEK |
556 BTUSB_WIDEBAND_SPEECH },
557
558 /* Realtek Bluetooth devices */
559 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
560 .driver_info = BTUSB_REALTEK },
561
562 /* MediaTek Bluetooth devices */
563 { USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01),
564 .driver_info = BTUSB_MEDIATEK |
565 BTUSB_WIDEBAND_SPEECH },
566
567 /* Additional MediaTek MT7615E Bluetooth devices */
568 { USB_DEVICE(0x13d3, 0x3560), .driver_info = BTUSB_MEDIATEK},
569
570 /* Additional MediaTek MT7663 Bluetooth devices */
571 { USB_DEVICE(0x043e, 0x310c), .driver_info = BTUSB_MEDIATEK |
572 BTUSB_WIDEBAND_SPEECH },
573 { USB_DEVICE(0x04ca, 0x3801), .driver_info = BTUSB_MEDIATEK |
574 BTUSB_WIDEBAND_SPEECH },
575
576 /* Additional MediaTek MT7668 Bluetooth devices */
577 { USB_DEVICE(0x043e, 0x3109), .driver_info = BTUSB_MEDIATEK |
578 BTUSB_WIDEBAND_SPEECH },
579
580 /* Additional MediaTek MT7920 Bluetooth devices */
581 { USB_DEVICE(0x0489, 0xe134), .driver_info = BTUSB_MEDIATEK |
582 BTUSB_WIDEBAND_SPEECH },
583 { USB_DEVICE(0x13d3, 0x3620), .driver_info = BTUSB_MEDIATEK |
584 BTUSB_WIDEBAND_SPEECH },
585 { USB_DEVICE(0x13d3, 0x3621), .driver_info = BTUSB_MEDIATEK |
586 BTUSB_WIDEBAND_SPEECH },
587 { USB_DEVICE(0x13d3, 0x3622), .driver_info = BTUSB_MEDIATEK |
588 BTUSB_WIDEBAND_SPEECH },
589
590 /* Additional MediaTek MT7921 Bluetooth devices */
591 { USB_DEVICE(0x0489, 0xe0c8), .driver_info = BTUSB_MEDIATEK |
592 BTUSB_WIDEBAND_SPEECH },
593 { USB_DEVICE(0x0489, 0xe0cd), .driver_info = BTUSB_MEDIATEK |
594 BTUSB_WIDEBAND_SPEECH },
595 { USB_DEVICE(0x0489, 0xe0e0), .driver_info = BTUSB_MEDIATEK |
596 BTUSB_WIDEBAND_SPEECH },
597 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK |
598 BTUSB_WIDEBAND_SPEECH },
599 { USB_DEVICE(0x04ca, 0x3802), .driver_info = BTUSB_MEDIATEK |
600 BTUSB_WIDEBAND_SPEECH },
601 { USB_DEVICE(0x0e8d, 0x0608), .driver_info = BTUSB_MEDIATEK |
602 BTUSB_WIDEBAND_SPEECH },
603 { USB_DEVICE(0x13d3, 0x3563), .driver_info = BTUSB_MEDIATEK |
604 BTUSB_WIDEBAND_SPEECH },
605 { USB_DEVICE(0x13d3, 0x3564), .driver_info = BTUSB_MEDIATEK |
606 BTUSB_WIDEBAND_SPEECH },
607 { USB_DEVICE(0x13d3, 0x3567), .driver_info = BTUSB_MEDIATEK |
608 BTUSB_WIDEBAND_SPEECH },
609 { USB_DEVICE(0x13d3, 0x3576), .driver_info = BTUSB_MEDIATEK |
610 BTUSB_WIDEBAND_SPEECH },
611 { USB_DEVICE(0x13d3, 0x3578), .driver_info = BTUSB_MEDIATEK |
612 BTUSB_WIDEBAND_SPEECH },
613 { USB_DEVICE(0x13d3, 0x3583), .driver_info = BTUSB_MEDIATEK |
614 BTUSB_WIDEBAND_SPEECH },
615 { USB_DEVICE(0x13d3, 0x3606), .driver_info = BTUSB_MEDIATEK |
616 BTUSB_WIDEBAND_SPEECH },
617
618 /* MediaTek MT7922 Bluetooth devices */
619 { USB_DEVICE(0x13d3, 0x3585), .driver_info = BTUSB_MEDIATEK |
620 BTUSB_WIDEBAND_SPEECH },
621 { USB_DEVICE(0x13d3, 0x3610), .driver_info = BTUSB_MEDIATEK |
622 BTUSB_WIDEBAND_SPEECH },
623
624 /* MediaTek MT7922A Bluetooth devices */
625 { USB_DEVICE(0x0489, 0xe0d8), .driver_info = BTUSB_MEDIATEK |
626 BTUSB_WIDEBAND_SPEECH },
627 { USB_DEVICE(0x0489, 0xe0d9), .driver_info = BTUSB_MEDIATEK |
628 BTUSB_WIDEBAND_SPEECH },
629 { USB_DEVICE(0x0489, 0xe0e2), .driver_info = BTUSB_MEDIATEK |
630 BTUSB_WIDEBAND_SPEECH },
631 { USB_DEVICE(0x0489, 0xe0e4), .driver_info = BTUSB_MEDIATEK |
632 BTUSB_WIDEBAND_SPEECH },
633 { USB_DEVICE(0x0489, 0xe0f1), .driver_info = BTUSB_MEDIATEK |
634 BTUSB_WIDEBAND_SPEECH },
635 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK |
636 BTUSB_WIDEBAND_SPEECH },
637 { USB_DEVICE(0x0489, 0xe0f5), .driver_info = BTUSB_MEDIATEK |
638 BTUSB_WIDEBAND_SPEECH },
639 { USB_DEVICE(0x0489, 0xe0f6), .driver_info = BTUSB_MEDIATEK |
640 BTUSB_WIDEBAND_SPEECH },
641 { USB_DEVICE(0x0489, 0xe102), .driver_info = BTUSB_MEDIATEK |
642 BTUSB_WIDEBAND_SPEECH },
643 { USB_DEVICE(0x04ca, 0x3804), .driver_info = BTUSB_MEDIATEK |
644 BTUSB_WIDEBAND_SPEECH },
645 { USB_DEVICE(0x04ca, 0x38e4), .driver_info = BTUSB_MEDIATEK |
646 BTUSB_WIDEBAND_SPEECH },
647 { USB_DEVICE(0x13d3, 0x3568), .driver_info = BTUSB_MEDIATEK |
648 BTUSB_WIDEBAND_SPEECH },
649 { USB_DEVICE(0x13d3, 0x3605), .driver_info = BTUSB_MEDIATEK |
650 BTUSB_WIDEBAND_SPEECH },
651 { USB_DEVICE(0x13d3, 0x3607), .driver_info = BTUSB_MEDIATEK |
652 BTUSB_WIDEBAND_SPEECH },
653 { USB_DEVICE(0x13d3, 0x3614), .driver_info = BTUSB_MEDIATEK |
654 BTUSB_WIDEBAND_SPEECH },
655 { USB_DEVICE(0x13d3, 0x3615), .driver_info = BTUSB_MEDIATEK |
656 BTUSB_WIDEBAND_SPEECH },
657 { USB_DEVICE(0x35f5, 0x7922), .driver_info = BTUSB_MEDIATEK |
658 BTUSB_WIDEBAND_SPEECH },
659
660 /* Additional MediaTek MT7925 Bluetooth devices */
661 { USB_DEVICE(0x0489, 0xe111), .driver_info = BTUSB_MEDIATEK |
662 BTUSB_WIDEBAND_SPEECH },
663 { USB_DEVICE(0x0489, 0xe113), .driver_info = BTUSB_MEDIATEK |
664 BTUSB_WIDEBAND_SPEECH },
665 { USB_DEVICE(0x0489, 0xe118), .driver_info = BTUSB_MEDIATEK |
666 BTUSB_WIDEBAND_SPEECH },
667 { USB_DEVICE(0x0489, 0xe11e), .driver_info = BTUSB_MEDIATEK |
668 BTUSB_WIDEBAND_SPEECH },
669 { USB_DEVICE(0x0489, 0xe124), .driver_info = BTUSB_MEDIATEK |
670 BTUSB_WIDEBAND_SPEECH },
671 { USB_DEVICE(0x0489, 0xe139), .driver_info = BTUSB_MEDIATEK |
672 BTUSB_WIDEBAND_SPEECH },
673 { USB_DEVICE(0x0489, 0xe14f), .driver_info = BTUSB_MEDIATEK |
674 BTUSB_WIDEBAND_SPEECH },
675 { USB_DEVICE(0x0489, 0xe150), .driver_info = BTUSB_MEDIATEK |
676 BTUSB_WIDEBAND_SPEECH },
677 { USB_DEVICE(0x0489, 0xe151), .driver_info = BTUSB_MEDIATEK |
678 BTUSB_WIDEBAND_SPEECH },
679 { USB_DEVICE(0x13d3, 0x3602), .driver_info = BTUSB_MEDIATEK |
680 BTUSB_WIDEBAND_SPEECH },
681 { USB_DEVICE(0x13d3, 0x3603), .driver_info = BTUSB_MEDIATEK |
682 BTUSB_WIDEBAND_SPEECH },
683 { USB_DEVICE(0x13d3, 0x3604), .driver_info = BTUSB_MEDIATEK |
684 BTUSB_WIDEBAND_SPEECH },
685 { USB_DEVICE(0x13d3, 0x3608), .driver_info = BTUSB_MEDIATEK |
686 BTUSB_WIDEBAND_SPEECH },
687 { USB_DEVICE(0x13d3, 0x3628), .driver_info = BTUSB_MEDIATEK |
688 BTUSB_WIDEBAND_SPEECH },
689
690 /* Additional Realtek 8723AE Bluetooth devices */
691 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
692 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
693
694 /* Additional Realtek 8723BE Bluetooth devices */
695 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
696 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
697 { USB_DEVICE(0x04f2, 0xb49f), .driver_info = BTUSB_REALTEK },
698 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
699 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
700 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
701 { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK },
702
703 /* Additional Realtek 8723BU Bluetooth devices */
704 { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK },
705
706 /* Additional Realtek 8723DE Bluetooth devices */
707 { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK },
708 { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK },
709
710 /* Additional Realtek 8761BUV Bluetooth devices */
711 { USB_DEVICE(0x2357, 0x0604), .driver_info = BTUSB_REALTEK |
712 BTUSB_WIDEBAND_SPEECH },
713 { USB_DEVICE(0x0b05, 0x190e), .driver_info = BTUSB_REALTEK |
714 BTUSB_WIDEBAND_SPEECH },
715 { USB_DEVICE(0x2550, 0x8761), .driver_info = BTUSB_REALTEK |
716 BTUSB_WIDEBAND_SPEECH },
717 { USB_DEVICE(0x0bda, 0x8771), .driver_info = BTUSB_REALTEK |
718 BTUSB_WIDEBAND_SPEECH },
719 { USB_DEVICE(0x6655, 0x8771), .driver_info = BTUSB_REALTEK |
720 BTUSB_WIDEBAND_SPEECH },
721 { USB_DEVICE(0x7392, 0xc611), .driver_info = BTUSB_REALTEK |
722 BTUSB_WIDEBAND_SPEECH },
723 { USB_DEVICE(0x2b89, 0x8761), .driver_info = BTUSB_REALTEK |
724 BTUSB_WIDEBAND_SPEECH },
725
726 /* Additional Realtek 8821AE Bluetooth devices */
727 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
728 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
729 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
730 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
731 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
732
733 /* Additional Realtek 8822BE Bluetooth devices */
734 { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK },
735 { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK },
736
737 /* Additional Realtek 8822CE Bluetooth devices */
738 { USB_DEVICE(0x04ca, 0x4005), .driver_info = BTUSB_REALTEK |
739 BTUSB_WIDEBAND_SPEECH },
740 { USB_DEVICE(0x04c5, 0x161f), .driver_info = BTUSB_REALTEK |
741 BTUSB_WIDEBAND_SPEECH },
742 { USB_DEVICE(0x0b05, 0x18ef), .driver_info = BTUSB_REALTEK |
743 BTUSB_WIDEBAND_SPEECH },
744 { USB_DEVICE(0x13d3, 0x3548), .driver_info = BTUSB_REALTEK |
745 BTUSB_WIDEBAND_SPEECH },
746 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK |
747 BTUSB_WIDEBAND_SPEECH },
748 { USB_DEVICE(0x13d3, 0x3553), .driver_info = BTUSB_REALTEK |
749 BTUSB_WIDEBAND_SPEECH },
750 { USB_DEVICE(0x13d3, 0x3555), .driver_info = BTUSB_REALTEK |
751 BTUSB_WIDEBAND_SPEECH },
752 { USB_DEVICE(0x2ff8, 0x3051), .driver_info = BTUSB_REALTEK |
753 BTUSB_WIDEBAND_SPEECH },
754 { USB_DEVICE(0x1358, 0xc123), .driver_info = BTUSB_REALTEK |
755 BTUSB_WIDEBAND_SPEECH },
756 { USB_DEVICE(0x0bda, 0xc123), .driver_info = BTUSB_REALTEK |
757 BTUSB_WIDEBAND_SPEECH },
758 { USB_DEVICE(0x0cb5, 0xc547), .driver_info = BTUSB_REALTEK |
759 BTUSB_WIDEBAND_SPEECH },
760
761 /* Actions Semiconductor ATS2851 based devices */
762 { USB_DEVICE(0x10d7, 0xb012), .driver_info = BTUSB_ACTIONS_SEMI },
763
764 /* Silicon Wave based devices */
765 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE },
766
767 { } /* Terminating entry */
768 };
769
770 /* The Bluetooth USB module build into some devices needs to be reset on resume,
771 * this is a problem with the platform (likely shutting off all power) not with
772 * the module itself. So we use a DMI list to match known broken platforms.
773 */
774 static const struct dmi_system_id btusb_needs_reset_resume_table[] = {
775 {
776 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */
777 .matches = {
778 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
779 DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"),
780 },
781 },
782 {
783 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */
784 .matches = {
785 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
786 DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"),
787 },
788 },
789 {
790 /* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */
791 .matches = {
792 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
793 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"),
794 },
795 },
796 {}
797 };
798
799 struct qca_dump_info {
800 /* fields for dump collection */
801 u16 id_vendor;
802 u16 id_product;
803 u32 fw_version;
804 u32 controller_id;
805 u32 ram_dump_size;
806 u16 ram_dump_seqno;
807 };
808
809 #define BTUSB_MAX_ISOC_FRAMES 10
810
811 #define BTUSB_INTR_RUNNING 0
812 #define BTUSB_BULK_RUNNING 1
813 #define BTUSB_ISOC_RUNNING 2
814 #define BTUSB_SUSPENDING 3
815 #define BTUSB_DID_ISO_RESUME 4
816 #define BTUSB_BOOTLOADER 5
817 #define BTUSB_DOWNLOADING 6
818 #define BTUSB_FIRMWARE_LOADED 7
819 #define BTUSB_FIRMWARE_FAILED 8
820 #define BTUSB_BOOTING 9
821 #define BTUSB_DIAG_RUNNING 10
822 #define BTUSB_OOB_WAKE_ENABLED 11
823 #define BTUSB_HW_RESET_ACTIVE 12
824 #define BTUSB_TX_WAIT_VND_EVT 13
825 #define BTUSB_WAKEUP_AUTOSUSPEND 14
826 #define BTUSB_USE_ALT3_FOR_WBS 15
827 #define BTUSB_ALT6_CONTINUOUS_TX 16
828 #define BTUSB_HW_SSR_ACTIVE 17
829
830 struct btusb_data {
831 struct hci_dev *hdev;
832 struct usb_device *udev;
833 struct usb_interface *intf;
834 struct usb_interface *isoc;
835 struct usb_interface *diag;
836 unsigned isoc_ifnum;
837
838 unsigned long flags;
839
840 bool poll_sync;
841 int intr_interval;
842 struct work_struct work;
843 struct work_struct waker;
844 struct delayed_work rx_work;
845
846 struct sk_buff_head acl_q;
847
848 struct usb_anchor deferred;
849 struct usb_anchor tx_anchor;
850 int tx_in_flight;
851 spinlock_t txlock;
852
853 struct usb_anchor intr_anchor;
854 struct usb_anchor bulk_anchor;
855 struct usb_anchor isoc_anchor;
856 struct usb_anchor diag_anchor;
857 struct usb_anchor ctrl_anchor;
858 spinlock_t rxlock;
859
860 struct sk_buff *evt_skb;
861 struct sk_buff *acl_skb;
862 struct sk_buff *sco_skb;
863
864 struct usb_endpoint_descriptor *intr_ep;
865 struct usb_endpoint_descriptor *bulk_tx_ep;
866 struct usb_endpoint_descriptor *bulk_rx_ep;
867 struct usb_endpoint_descriptor *isoc_tx_ep;
868 struct usb_endpoint_descriptor *isoc_rx_ep;
869 struct usb_endpoint_descriptor *diag_tx_ep;
870 struct usb_endpoint_descriptor *diag_rx_ep;
871
872 struct gpio_desc *reset_gpio;
873
874 __u8 cmdreq_type;
875 __u8 cmdreq;
876
877 unsigned int sco_num;
878 unsigned int air_mode;
879 bool usb_alt6_packet_flow;
880 int isoc_altsetting;
881 int suspend_count;
882
883 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
884 int (*recv_acl)(struct hci_dev *hdev, struct sk_buff *skb);
885 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
886
887 int (*setup_on_usb)(struct hci_dev *hdev);
888
889 int (*suspend)(struct hci_dev *hdev);
890 int (*resume)(struct hci_dev *hdev);
891 int (*disconnect)(struct hci_dev *hdev);
892
893 int oob_wake_irq; /* irq for out-of-band wake-on-bt */
894
895 struct qca_dump_info qca_dump;
896 };
897
btusb_reset(struct hci_dev * hdev)898 static void btusb_reset(struct hci_dev *hdev)
899 {
900 struct btusb_data *data;
901 int err;
902
903 data = hci_get_drvdata(hdev);
904 /* This is not an unbalanced PM reference since the device will reset */
905 err = usb_autopm_get_interface(data->intf);
906 if (err) {
907 bt_dev_err(hdev, "Failed usb_autopm_get_interface: %d", err);
908 return;
909 }
910
911 bt_dev_err(hdev, "Resetting usb device.");
912 usb_queue_reset_device(data->intf);
913 }
914
btusb_intel_reset(struct hci_dev * hdev)915 static void btusb_intel_reset(struct hci_dev *hdev)
916 {
917 struct btusb_data *data = hci_get_drvdata(hdev);
918 struct gpio_desc *reset_gpio = data->reset_gpio;
919 struct btintel_data *intel_data = hci_get_priv(hdev);
920
921 if (intel_data->acpi_reset_method) {
922 if (test_and_set_bit(INTEL_ACPI_RESET_ACTIVE, intel_data->flags)) {
923 bt_dev_err(hdev, "acpi: last reset failed ? Not resetting again");
924 return;
925 }
926
927 bt_dev_err(hdev, "Initiating acpi reset method");
928 /* If ACPI reset method fails, lets try with legacy GPIO
929 * toggling
930 */
931 if (!intel_data->acpi_reset_method(hdev)) {
932 return;
933 }
934 }
935
936 if (!reset_gpio) {
937 btusb_reset(hdev);
938 return;
939 }
940
941 /*
942 * Toggle the hard reset line if the platform provides one. The reset
943 * is going to yank the device off the USB and then replug. So doing
944 * once is enough. The cleanup is handled correctly on the way out
945 * (standard USB disconnect), and the new device is detected cleanly
946 * and bound to the driver again like it should be.
947 */
948 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
949 bt_dev_err(hdev, "last reset failed? Not resetting again");
950 return;
951 }
952
953 bt_dev_err(hdev, "Initiating HW reset via gpio");
954 gpiod_set_value_cansleep(reset_gpio, 1);
955 msleep(100);
956 gpiod_set_value_cansleep(reset_gpio, 0);
957 }
958
959 #define RTK_DEVCOREDUMP_CODE_MEMDUMP 0x01
960 #define RTK_DEVCOREDUMP_CODE_HW_ERR 0x02
961 #define RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT 0x03
962
963 #define RTK_SUB_EVENT_CODE_COREDUMP 0x34
964
965 struct rtk_dev_coredump_hdr {
966 u8 type;
967 u8 code;
968 u8 reserved[2];
969 } __packed;
970
btusb_rtl_alloc_devcoredump(struct hci_dev * hdev,struct rtk_dev_coredump_hdr * hdr,u8 * buf,u32 len)971 static inline void btusb_rtl_alloc_devcoredump(struct hci_dev *hdev,
972 struct rtk_dev_coredump_hdr *hdr, u8 *buf, u32 len)
973 {
974 struct sk_buff *skb;
975
976 skb = alloc_skb(len + sizeof(*hdr), GFP_ATOMIC);
977 if (!skb)
978 return;
979
980 skb_put_data(skb, hdr, sizeof(*hdr));
981 if (len)
982 skb_put_data(skb, buf, len);
983
984 if (!hci_devcd_init(hdev, skb->len)) {
985 hci_devcd_append(hdev, skb);
986 hci_devcd_complete(hdev);
987 } else {
988 bt_dev_err(hdev, "RTL: Failed to generate devcoredump");
989 kfree_skb(skb);
990 }
991 }
992
btusb_rtl_reset(struct hci_dev * hdev)993 static void btusb_rtl_reset(struct hci_dev *hdev)
994 {
995 struct btusb_data *data = hci_get_drvdata(hdev);
996 struct gpio_desc *reset_gpio = data->reset_gpio;
997 struct rtk_dev_coredump_hdr hdr = {
998 .type = RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT,
999 };
1000
1001 btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0);
1002
1003 if (!reset_gpio) {
1004 btusb_reset(hdev);
1005 return;
1006 }
1007
1008 /* Toggle the hard reset line. The Realtek device is going to
1009 * yank itself off the USB and then replug. The cleanup is handled
1010 * correctly on the way out (standard USB disconnect), and the new
1011 * device is detected cleanly and bound to the driver again like
1012 * it should be.
1013 */
1014 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
1015 bt_dev_err(hdev, "last reset failed? Not resetting again");
1016 return;
1017 }
1018
1019 bt_dev_err(hdev, "Reset Realtek device via gpio");
1020 gpiod_set_value_cansleep(reset_gpio, 1);
1021 msleep(200);
1022 gpiod_set_value_cansleep(reset_gpio, 0);
1023 }
1024
btusb_rtl_hw_error(struct hci_dev * hdev,u8 code)1025 static void btusb_rtl_hw_error(struct hci_dev *hdev, u8 code)
1026 {
1027 struct rtk_dev_coredump_hdr hdr = {
1028 .type = RTK_DEVCOREDUMP_CODE_HW_ERR,
1029 .code = code,
1030 };
1031
1032 bt_dev_err(hdev, "RTL: hw err, trigger devcoredump (%d)", code);
1033
1034 btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0);
1035 }
1036
btusb_qca_reset(struct hci_dev * hdev)1037 static void btusb_qca_reset(struct hci_dev *hdev)
1038 {
1039 struct btusb_data *data = hci_get_drvdata(hdev);
1040 struct gpio_desc *reset_gpio = data->reset_gpio;
1041
1042 if (test_bit(BTUSB_HW_SSR_ACTIVE, &data->flags)) {
1043 bt_dev_info(hdev, "Ramdump in progress, defer reset");
1044 return;
1045 }
1046
1047 if (reset_gpio) {
1048 bt_dev_err(hdev, "Reset qca device via bt_en gpio");
1049
1050 /* Toggle the hard reset line. The qca bt device is going to
1051 * yank itself off the USB and then replug. The cleanup is handled
1052 * correctly on the way out (standard USB disconnect), and the new
1053 * device is detected cleanly and bound to the driver again like
1054 * it should be.
1055 */
1056 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
1057 bt_dev_err(hdev, "last reset failed? Not resetting again");
1058 return;
1059 }
1060
1061 gpiod_set_value_cansleep(reset_gpio, 0);
1062 msleep(200);
1063 gpiod_set_value_cansleep(reset_gpio, 1);
1064
1065 return;
1066 }
1067
1068 btusb_reset(hdev);
1069 }
1070
btusb_free_frags(struct btusb_data * data)1071 static inline void btusb_free_frags(struct btusb_data *data)
1072 {
1073 unsigned long flags;
1074
1075 spin_lock_irqsave(&data->rxlock, flags);
1076
1077 dev_kfree_skb_irq(data->evt_skb);
1078 data->evt_skb = NULL;
1079
1080 dev_kfree_skb_irq(data->acl_skb);
1081 data->acl_skb = NULL;
1082
1083 dev_kfree_skb_irq(data->sco_skb);
1084 data->sco_skb = NULL;
1085
1086 spin_unlock_irqrestore(&data->rxlock, flags);
1087 }
1088
btusb_sco_connected(struct btusb_data * data,struct sk_buff * skb)1089 static void btusb_sco_connected(struct btusb_data *data, struct sk_buff *skb)
1090 {
1091 struct hci_event_hdr *hdr = (void *) skb->data;
1092 struct hci_ev_sync_conn_complete *ev =
1093 (void *) skb->data + sizeof(*hdr);
1094 struct hci_dev *hdev = data->hdev;
1095 unsigned int notify_air_mode;
1096
1097 if (hci_skb_pkt_type(skb) != HCI_EVENT_PKT)
1098 return;
1099
1100 if (skb->len < sizeof(*hdr) || hdr->evt != HCI_EV_SYNC_CONN_COMPLETE)
1101 return;
1102
1103 if (skb->len != sizeof(*hdr) + sizeof(*ev) || ev->status)
1104 return;
1105
1106 switch (ev->air_mode) {
1107 case BT_CODEC_CVSD:
1108 notify_air_mode = HCI_NOTIFY_ENABLE_SCO_CVSD;
1109 break;
1110
1111 case BT_CODEC_TRANSPARENT:
1112 notify_air_mode = HCI_NOTIFY_ENABLE_SCO_TRANSP;
1113 break;
1114
1115 default:
1116 return;
1117 }
1118
1119 bt_dev_info(hdev, "enabling SCO with air mode %u", ev->air_mode);
1120 data->sco_num = 1;
1121 data->air_mode = notify_air_mode;
1122 schedule_work(&data->work);
1123 }
1124
btusb_recv_event(struct btusb_data * data,struct sk_buff * skb)1125 static int btusb_recv_event(struct btusb_data *data, struct sk_buff *skb)
1126 {
1127 if (data->intr_interval) {
1128 /* Trigger dequeue immediately if an event is received */
1129 schedule_delayed_work(&data->rx_work, 0);
1130 }
1131
1132 /* Configure altsetting for HCI_USER_CHANNEL on SCO connected */
1133 if (auto_isoc_alt && hci_dev_test_flag(data->hdev, HCI_USER_CHANNEL))
1134 btusb_sco_connected(data, skb);
1135
1136 return data->recv_event(data->hdev, skb);
1137 }
1138
btusb_recv_intr(struct btusb_data * data,void * buffer,int count)1139 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
1140 {
1141 struct sk_buff *skb;
1142 unsigned long flags;
1143 int err = 0;
1144
1145 spin_lock_irqsave(&data->rxlock, flags);
1146 skb = data->evt_skb;
1147
1148 while (count) {
1149 int len;
1150
1151 if (!skb) {
1152 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
1153 if (!skb) {
1154 err = -ENOMEM;
1155 break;
1156 }
1157
1158 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
1159 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE;
1160 }
1161
1162 len = min_t(uint, hci_skb_expect(skb), count);
1163 skb_put_data(skb, buffer, len);
1164
1165 count -= len;
1166 buffer += len;
1167 hci_skb_expect(skb) -= len;
1168
1169 if (skb->len == HCI_EVENT_HDR_SIZE) {
1170 /* Complete event header */
1171 hci_skb_expect(skb) = hci_event_hdr(skb)->plen;
1172
1173 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
1174 kfree_skb(skb);
1175 skb = NULL;
1176
1177 err = -EILSEQ;
1178 break;
1179 }
1180 }
1181
1182 if (!hci_skb_expect(skb)) {
1183 /* Complete frame */
1184 btusb_recv_event(data, skb);
1185 skb = NULL;
1186 }
1187 }
1188
1189 data->evt_skb = skb;
1190 spin_unlock_irqrestore(&data->rxlock, flags);
1191
1192 return err;
1193 }
1194
btusb_recv_acl(struct btusb_data * data,struct sk_buff * skb)1195 static int btusb_recv_acl(struct btusb_data *data, struct sk_buff *skb)
1196 {
1197 /* Only queue ACL packet if intr_interval is set as it means
1198 * force_poll_sync has been enabled.
1199 */
1200 if (!data->intr_interval)
1201 return data->recv_acl(data->hdev, skb);
1202
1203 skb_queue_tail(&data->acl_q, skb);
1204 schedule_delayed_work(&data->rx_work, data->intr_interval);
1205
1206 return 0;
1207 }
1208
btusb_recv_bulk(struct btusb_data * data,void * buffer,int count)1209 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
1210 {
1211 struct sk_buff *skb;
1212 unsigned long flags;
1213 int err = 0;
1214
1215 spin_lock_irqsave(&data->rxlock, flags);
1216 skb = data->acl_skb;
1217
1218 while (count) {
1219 int len;
1220
1221 if (!skb) {
1222 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
1223 if (!skb) {
1224 err = -ENOMEM;
1225 break;
1226 }
1227
1228 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT;
1229 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE;
1230 }
1231
1232 len = min_t(uint, hci_skb_expect(skb), count);
1233 skb_put_data(skb, buffer, len);
1234
1235 count -= len;
1236 buffer += len;
1237 hci_skb_expect(skb) -= len;
1238
1239 if (skb->len == HCI_ACL_HDR_SIZE) {
1240 __le16 dlen = hci_acl_hdr(skb)->dlen;
1241
1242 /* Complete ACL header */
1243 hci_skb_expect(skb) = __le16_to_cpu(dlen);
1244
1245 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
1246 kfree_skb(skb);
1247 skb = NULL;
1248
1249 err = -EILSEQ;
1250 break;
1251 }
1252 }
1253
1254 if (!hci_skb_expect(skb)) {
1255 /* Complete frame */
1256 btusb_recv_acl(data, skb);
1257 skb = NULL;
1258 }
1259 }
1260
1261 data->acl_skb = skb;
1262 spin_unlock_irqrestore(&data->rxlock, flags);
1263
1264 return err;
1265 }
1266
btusb_validate_sco_handle(struct hci_dev * hdev,struct hci_sco_hdr * hdr)1267 static bool btusb_validate_sco_handle(struct hci_dev *hdev,
1268 struct hci_sco_hdr *hdr)
1269 {
1270 __u16 handle;
1271
1272 if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL))
1273 // Can't validate, userspace controls everything.
1274 return true;
1275
1276 /*
1277 * USB isochronous transfers are not designed to be reliable and may
1278 * lose fragments. When this happens, the next first fragment
1279 * encountered might actually be a continuation fragment.
1280 * Validate the handle to detect it and drop it, or else the upper
1281 * layer will get garbage for a while.
1282 */
1283
1284 handle = hci_handle(__le16_to_cpu(hdr->handle));
1285
1286 switch (hci_conn_lookup_type(hdev, handle)) {
1287 case SCO_LINK:
1288 case ESCO_LINK:
1289 return true;
1290 default:
1291 return false;
1292 }
1293 }
1294
btusb_recv_isoc(struct btusb_data * data,void * buffer,int count)1295 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
1296 {
1297 struct sk_buff *skb;
1298 unsigned long flags;
1299 int err = 0;
1300
1301 spin_lock_irqsave(&data->rxlock, flags);
1302 skb = data->sco_skb;
1303
1304 while (count) {
1305 int len;
1306
1307 if (!skb) {
1308 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
1309 if (!skb) {
1310 err = -ENOMEM;
1311 break;
1312 }
1313
1314 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT;
1315 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE;
1316 }
1317
1318 len = min_t(uint, hci_skb_expect(skb), count);
1319 skb_put_data(skb, buffer, len);
1320
1321 count -= len;
1322 buffer += len;
1323 hci_skb_expect(skb) -= len;
1324
1325 if (skb->len == HCI_SCO_HDR_SIZE) {
1326 /* Complete SCO header */
1327 struct hci_sco_hdr *hdr = hci_sco_hdr(skb);
1328
1329 hci_skb_expect(skb) = hdr->dlen;
1330
1331 if (skb_tailroom(skb) < hci_skb_expect(skb) ||
1332 !btusb_validate_sco_handle(data->hdev, hdr)) {
1333 kfree_skb(skb);
1334 skb = NULL;
1335
1336 err = -EILSEQ;
1337 break;
1338 }
1339 }
1340
1341 if (!hci_skb_expect(skb)) {
1342 /* Complete frame */
1343 hci_recv_frame(data->hdev, skb);
1344 skb = NULL;
1345 }
1346 }
1347
1348 data->sco_skb = skb;
1349 spin_unlock_irqrestore(&data->rxlock, flags);
1350
1351 return err;
1352 }
1353
btusb_intr_complete(struct urb * urb)1354 static void btusb_intr_complete(struct urb *urb)
1355 {
1356 struct hci_dev *hdev = urb->context;
1357 struct btusb_data *data = hci_get_drvdata(hdev);
1358 int err;
1359
1360 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1361 urb->actual_length);
1362
1363 if (!test_bit(HCI_RUNNING, &hdev->flags))
1364 return;
1365
1366 if (urb->status == 0) {
1367 hdev->stat.byte_rx += urb->actual_length;
1368
1369 if (btusb_recv_intr(data, urb->transfer_buffer,
1370 urb->actual_length) < 0) {
1371 bt_dev_err(hdev, "corrupted event packet");
1372 hdev->stat.err_rx++;
1373 }
1374 } else if (urb->status == -ENOENT) {
1375 /* Avoid suspend failed when usb_kill_urb */
1376 return;
1377 }
1378
1379 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
1380 return;
1381
1382 usb_mark_last_busy(data->udev);
1383 usb_anchor_urb(urb, &data->intr_anchor);
1384
1385 err = usb_submit_urb(urb, GFP_ATOMIC);
1386 if (err < 0) {
1387 /* -EPERM: urb is being killed;
1388 * -ENODEV: device got disconnected
1389 */
1390 if (err != -EPERM && err != -ENODEV)
1391 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1392 urb, -err);
1393 if (err != -EPERM)
1394 hci_cmd_sync_cancel(hdev, -err);
1395 usb_unanchor_urb(urb);
1396 }
1397 }
1398
btusb_submit_intr_urb(struct hci_dev * hdev,gfp_t mem_flags)1399 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
1400 {
1401 struct btusb_data *data = hci_get_drvdata(hdev);
1402 struct urb *urb;
1403 unsigned char *buf;
1404 unsigned int pipe;
1405 int err, size;
1406
1407 BT_DBG("%s", hdev->name);
1408
1409 if (!data->intr_ep)
1410 return -ENODEV;
1411
1412 urb = usb_alloc_urb(0, mem_flags);
1413 if (!urb)
1414 return -ENOMEM;
1415
1416 if (le16_to_cpu(data->udev->descriptor.idVendor) == 0x0a12 &&
1417 le16_to_cpu(data->udev->descriptor.idProduct) == 0x0001)
1418 /* Fake CSR devices don't seem to support sort-transter */
1419 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
1420 else
1421 /* Use maximum HCI Event size so the USB stack handles
1422 * ZPL/short-transfer automatically.
1423 */
1424 size = HCI_MAX_EVENT_SIZE;
1425
1426 buf = kmalloc(size, mem_flags);
1427 if (!buf) {
1428 usb_free_urb(urb);
1429 return -ENOMEM;
1430 }
1431
1432 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
1433
1434 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
1435 btusb_intr_complete, hdev, data->intr_ep->bInterval);
1436
1437 urb->transfer_flags |= URB_FREE_BUFFER;
1438
1439 usb_anchor_urb(urb, &data->intr_anchor);
1440
1441 err = usb_submit_urb(urb, mem_flags);
1442 if (err < 0) {
1443 if (err != -EPERM && err != -ENODEV)
1444 bt_dev_err(hdev, "urb %p submission failed (%d)",
1445 urb, -err);
1446 if (err != -EPERM)
1447 hci_cmd_sync_cancel(hdev, -err);
1448 usb_unanchor_urb(urb);
1449 }
1450
1451 /* Only initialize intr_interval if URB poll sync is enabled */
1452 if (!data->poll_sync)
1453 goto done;
1454
1455 /* The units are frames (milliseconds) for full and low speed devices,
1456 * and microframes (1/8 millisecond) for highspeed and SuperSpeed
1457 * devices.
1458 *
1459 * This is done once on open/resume so it shouldn't change even if
1460 * force_poll_sync changes.
1461 */
1462 switch (urb->dev->speed) {
1463 case USB_SPEED_SUPER_PLUS:
1464 case USB_SPEED_SUPER: /* units are 125us */
1465 data->intr_interval = usecs_to_jiffies(urb->interval * 125);
1466 break;
1467 default:
1468 data->intr_interval = msecs_to_jiffies(urb->interval);
1469 break;
1470 }
1471
1472 done:
1473 usb_free_urb(urb);
1474
1475 return err;
1476 }
1477
btusb_bulk_complete(struct urb * urb)1478 static void btusb_bulk_complete(struct urb *urb)
1479 {
1480 struct hci_dev *hdev = urb->context;
1481 struct btusb_data *data = hci_get_drvdata(hdev);
1482 int err;
1483
1484 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1485 urb->actual_length);
1486
1487 if (!test_bit(HCI_RUNNING, &hdev->flags))
1488 return;
1489
1490 if (urb->status == 0) {
1491 hdev->stat.byte_rx += urb->actual_length;
1492
1493 if (data->recv_bulk(data, urb->transfer_buffer,
1494 urb->actual_length) < 0) {
1495 bt_dev_err(hdev, "corrupted ACL packet");
1496 hdev->stat.err_rx++;
1497 }
1498 } else if (urb->status == -ENOENT) {
1499 /* Avoid suspend failed when usb_kill_urb */
1500 return;
1501 }
1502
1503 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
1504 return;
1505
1506 usb_anchor_urb(urb, &data->bulk_anchor);
1507 usb_mark_last_busy(data->udev);
1508
1509 err = usb_submit_urb(urb, GFP_ATOMIC);
1510 if (err < 0) {
1511 /* -EPERM: urb is being killed;
1512 * -ENODEV: device got disconnected
1513 */
1514 if (err != -EPERM && err != -ENODEV)
1515 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1516 urb, -err);
1517 usb_unanchor_urb(urb);
1518 }
1519 }
1520
btusb_submit_bulk_urb(struct hci_dev * hdev,gfp_t mem_flags)1521 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
1522 {
1523 struct btusb_data *data = hci_get_drvdata(hdev);
1524 struct urb *urb;
1525 unsigned char *buf;
1526 unsigned int pipe;
1527 int err, size = HCI_MAX_FRAME_SIZE;
1528
1529 BT_DBG("%s", hdev->name);
1530
1531 if (!data->bulk_rx_ep)
1532 return -ENODEV;
1533
1534 urb = usb_alloc_urb(0, mem_flags);
1535 if (!urb)
1536 return -ENOMEM;
1537
1538 buf = kmalloc(size, mem_flags);
1539 if (!buf) {
1540 usb_free_urb(urb);
1541 return -ENOMEM;
1542 }
1543
1544 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
1545
1546 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1547 btusb_bulk_complete, hdev);
1548
1549 urb->transfer_flags |= URB_FREE_BUFFER;
1550
1551 usb_mark_last_busy(data->udev);
1552 usb_anchor_urb(urb, &data->bulk_anchor);
1553
1554 err = usb_submit_urb(urb, mem_flags);
1555 if (err < 0) {
1556 if (err != -EPERM && err != -ENODEV)
1557 bt_dev_err(hdev, "urb %p submission failed (%d)",
1558 urb, -err);
1559 usb_unanchor_urb(urb);
1560 }
1561
1562 usb_free_urb(urb);
1563
1564 return err;
1565 }
1566
btusb_isoc_complete(struct urb * urb)1567 static void btusb_isoc_complete(struct urb *urb)
1568 {
1569 struct hci_dev *hdev = urb->context;
1570 struct btusb_data *data = hci_get_drvdata(hdev);
1571 int i, err;
1572
1573 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1574 urb->actual_length);
1575
1576 if (!test_bit(HCI_RUNNING, &hdev->flags))
1577 return;
1578
1579 if (urb->status == 0) {
1580 for (i = 0; i < urb->number_of_packets; i++) {
1581 unsigned int offset = urb->iso_frame_desc[i].offset;
1582 unsigned int length = urb->iso_frame_desc[i].actual_length;
1583
1584 if (urb->iso_frame_desc[i].status)
1585 continue;
1586
1587 hdev->stat.byte_rx += length;
1588
1589 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
1590 length) < 0) {
1591 bt_dev_err(hdev, "corrupted SCO packet");
1592 hdev->stat.err_rx++;
1593 }
1594 }
1595 } else if (urb->status == -ENOENT) {
1596 /* Avoid suspend failed when usb_kill_urb */
1597 return;
1598 }
1599
1600 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
1601 return;
1602
1603 usb_anchor_urb(urb, &data->isoc_anchor);
1604
1605 err = usb_submit_urb(urb, GFP_ATOMIC);
1606 if (err < 0) {
1607 /* -EPERM: urb is being killed;
1608 * -ENODEV: device got disconnected
1609 */
1610 if (err != -EPERM && err != -ENODEV)
1611 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1612 urb, -err);
1613 usb_unanchor_urb(urb);
1614 }
1615 }
1616
__fill_isoc_descriptor_msbc(struct urb * urb,int len,int mtu,struct btusb_data * data)1617 static inline void __fill_isoc_descriptor_msbc(struct urb *urb, int len,
1618 int mtu, struct btusb_data *data)
1619 {
1620 int i = 0, offset = 0;
1621 unsigned int interval;
1622
1623 BT_DBG("len %d mtu %d", len, mtu);
1624
1625 /* For mSBC ALT 6 settings some chips need to transmit the data
1626 * continuously without the zero length of USB packets.
1627 */
1628 if (test_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags))
1629 goto ignore_usb_alt6_packet_flow;
1630
1631 /* For mSBC ALT 6 setting the host will send the packet at continuous
1632 * flow. As per core spec 5, vol 4, part B, table 2.1. For ALT setting
1633 * 6 the HCI PACKET INTERVAL should be 7.5ms for every usb packets.
1634 * To maintain the rate we send 63bytes of usb packets alternatively for
1635 * 7ms and 8ms to maintain the rate as 7.5ms.
1636 */
1637 if (data->usb_alt6_packet_flow) {
1638 interval = 7;
1639 data->usb_alt6_packet_flow = false;
1640 } else {
1641 interval = 6;
1642 data->usb_alt6_packet_flow = true;
1643 }
1644
1645 for (i = 0; i < interval; i++) {
1646 urb->iso_frame_desc[i].offset = offset;
1647 urb->iso_frame_desc[i].length = offset;
1648 }
1649
1650 ignore_usb_alt6_packet_flow:
1651 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1652 urb->iso_frame_desc[i].offset = offset;
1653 urb->iso_frame_desc[i].length = len;
1654 i++;
1655 }
1656
1657 urb->number_of_packets = i;
1658 }
1659
__fill_isoc_descriptor(struct urb * urb,int len,int mtu)1660 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
1661 {
1662 int i, offset = 0;
1663
1664 BT_DBG("len %d mtu %d", len, mtu);
1665
1666 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
1667 i++, offset += mtu, len -= mtu) {
1668 urb->iso_frame_desc[i].offset = offset;
1669 urb->iso_frame_desc[i].length = mtu;
1670 }
1671
1672 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1673 urb->iso_frame_desc[i].offset = offset;
1674 urb->iso_frame_desc[i].length = len;
1675 i++;
1676 }
1677
1678 urb->number_of_packets = i;
1679 }
1680
btusb_submit_isoc_urb(struct hci_dev * hdev,gfp_t mem_flags)1681 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
1682 {
1683 struct btusb_data *data = hci_get_drvdata(hdev);
1684 struct urb *urb;
1685 unsigned char *buf;
1686 unsigned int pipe;
1687 int err, size;
1688
1689 BT_DBG("%s", hdev->name);
1690
1691 if (!data->isoc_rx_ep)
1692 return -ENODEV;
1693
1694 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
1695 if (!urb)
1696 return -ENOMEM;
1697
1698 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
1699 BTUSB_MAX_ISOC_FRAMES;
1700
1701 buf = kmalloc(size, mem_flags);
1702 if (!buf) {
1703 usb_free_urb(urb);
1704 return -ENOMEM;
1705 }
1706
1707 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
1708
1709 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
1710 hdev, data->isoc_rx_ep->bInterval);
1711
1712 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
1713
1714 __fill_isoc_descriptor(urb, size,
1715 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
1716
1717 usb_anchor_urb(urb, &data->isoc_anchor);
1718
1719 err = usb_submit_urb(urb, mem_flags);
1720 if (err < 0) {
1721 if (err != -EPERM && err != -ENODEV)
1722 bt_dev_err(hdev, "urb %p submission failed (%d)",
1723 urb, -err);
1724 usb_unanchor_urb(urb);
1725 }
1726
1727 usb_free_urb(urb);
1728
1729 return err;
1730 }
1731
btusb_diag_complete(struct urb * urb)1732 static void btusb_diag_complete(struct urb *urb)
1733 {
1734 struct hci_dev *hdev = urb->context;
1735 struct btusb_data *data = hci_get_drvdata(hdev);
1736 int err;
1737
1738 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1739 urb->actual_length);
1740
1741 if (urb->status == 0) {
1742 struct sk_buff *skb;
1743
1744 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC);
1745 if (skb) {
1746 skb_put_data(skb, urb->transfer_buffer,
1747 urb->actual_length);
1748 hci_recv_diag(hdev, skb);
1749 }
1750 } else if (urb->status == -ENOENT) {
1751 /* Avoid suspend failed when usb_kill_urb */
1752 return;
1753 }
1754
1755 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags))
1756 return;
1757
1758 usb_anchor_urb(urb, &data->diag_anchor);
1759 usb_mark_last_busy(data->udev);
1760
1761 err = usb_submit_urb(urb, GFP_ATOMIC);
1762 if (err < 0) {
1763 /* -EPERM: urb is being killed;
1764 * -ENODEV: device got disconnected
1765 */
1766 if (err != -EPERM && err != -ENODEV)
1767 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1768 urb, -err);
1769 usb_unanchor_urb(urb);
1770 }
1771 }
1772
btusb_submit_diag_urb(struct hci_dev * hdev,gfp_t mem_flags)1773 static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags)
1774 {
1775 struct btusb_data *data = hci_get_drvdata(hdev);
1776 struct urb *urb;
1777 unsigned char *buf;
1778 unsigned int pipe;
1779 int err, size = HCI_MAX_FRAME_SIZE;
1780
1781 BT_DBG("%s", hdev->name);
1782
1783 if (!data->diag_rx_ep)
1784 return -ENODEV;
1785
1786 urb = usb_alloc_urb(0, mem_flags);
1787 if (!urb)
1788 return -ENOMEM;
1789
1790 buf = kmalloc(size, mem_flags);
1791 if (!buf) {
1792 usb_free_urb(urb);
1793 return -ENOMEM;
1794 }
1795
1796 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress);
1797
1798 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1799 btusb_diag_complete, hdev);
1800
1801 urb->transfer_flags |= URB_FREE_BUFFER;
1802
1803 usb_mark_last_busy(data->udev);
1804 usb_anchor_urb(urb, &data->diag_anchor);
1805
1806 err = usb_submit_urb(urb, mem_flags);
1807 if (err < 0) {
1808 if (err != -EPERM && err != -ENODEV)
1809 bt_dev_err(hdev, "urb %p submission failed (%d)",
1810 urb, -err);
1811 usb_unanchor_urb(urb);
1812 }
1813
1814 usb_free_urb(urb);
1815
1816 return err;
1817 }
1818
btusb_tx_complete(struct urb * urb)1819 static void btusb_tx_complete(struct urb *urb)
1820 {
1821 struct sk_buff *skb = urb->context;
1822 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1823 struct btusb_data *data = hci_get_drvdata(hdev);
1824 unsigned long flags;
1825
1826 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1827 urb->actual_length);
1828
1829 if (!test_bit(HCI_RUNNING, &hdev->flags))
1830 goto done;
1831
1832 if (!urb->status) {
1833 hdev->stat.byte_tx += urb->transfer_buffer_length;
1834 } else {
1835 if (hci_skb_pkt_type(skb) == HCI_COMMAND_PKT)
1836 hci_cmd_sync_cancel(hdev, -urb->status);
1837 hdev->stat.err_tx++;
1838 }
1839
1840 done:
1841 spin_lock_irqsave(&data->txlock, flags);
1842 data->tx_in_flight--;
1843 spin_unlock_irqrestore(&data->txlock, flags);
1844
1845 kfree(urb->setup_packet);
1846
1847 kfree_skb(skb);
1848 }
1849
btusb_isoc_tx_complete(struct urb * urb)1850 static void btusb_isoc_tx_complete(struct urb *urb)
1851 {
1852 struct sk_buff *skb = urb->context;
1853 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1854
1855 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1856 urb->actual_length);
1857
1858 if (!test_bit(HCI_RUNNING, &hdev->flags))
1859 goto done;
1860
1861 if (!urb->status)
1862 hdev->stat.byte_tx += urb->transfer_buffer_length;
1863 else
1864 hdev->stat.err_tx++;
1865
1866 done:
1867 kfree(urb->setup_packet);
1868
1869 kfree_skb(skb);
1870 }
1871
btusb_open(struct hci_dev * hdev)1872 static int btusb_open(struct hci_dev *hdev)
1873 {
1874 struct btusb_data *data = hci_get_drvdata(hdev);
1875 int err;
1876
1877 BT_DBG("%s", hdev->name);
1878
1879 err = usb_autopm_get_interface(data->intf);
1880 if (err < 0)
1881 return err;
1882
1883 /* Patching USB firmware files prior to starting any URBs of HCI path
1884 * It is more safe to use USB bulk channel for downloading USB patch
1885 */
1886 if (data->setup_on_usb) {
1887 err = data->setup_on_usb(hdev);
1888 if (err < 0)
1889 goto setup_fail;
1890 }
1891
1892 data->intf->needs_remote_wakeup = 1;
1893
1894 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
1895 goto done;
1896
1897 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
1898 if (err < 0)
1899 goto failed;
1900
1901 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1902 if (err < 0) {
1903 usb_kill_anchored_urbs(&data->intr_anchor);
1904 goto failed;
1905 }
1906
1907 set_bit(BTUSB_BULK_RUNNING, &data->flags);
1908 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1909
1910 if (data->diag) {
1911 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL))
1912 set_bit(BTUSB_DIAG_RUNNING, &data->flags);
1913 }
1914
1915 done:
1916 usb_autopm_put_interface(data->intf);
1917 return 0;
1918
1919 failed:
1920 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1921 setup_fail:
1922 usb_autopm_put_interface(data->intf);
1923 return err;
1924 }
1925
btusb_stop_traffic(struct btusb_data * data)1926 static void btusb_stop_traffic(struct btusb_data *data)
1927 {
1928 usb_kill_anchored_urbs(&data->intr_anchor);
1929 usb_kill_anchored_urbs(&data->bulk_anchor);
1930 usb_kill_anchored_urbs(&data->isoc_anchor);
1931 usb_kill_anchored_urbs(&data->diag_anchor);
1932 usb_kill_anchored_urbs(&data->ctrl_anchor);
1933 }
1934
btusb_close(struct hci_dev * hdev)1935 static int btusb_close(struct hci_dev *hdev)
1936 {
1937 struct btusb_data *data = hci_get_drvdata(hdev);
1938 int err;
1939
1940 BT_DBG("%s", hdev->name);
1941
1942 cancel_delayed_work(&data->rx_work);
1943 cancel_work_sync(&data->work);
1944 cancel_work_sync(&data->waker);
1945
1946 skb_queue_purge(&data->acl_q);
1947
1948 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1949 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1950 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1951 clear_bit(BTUSB_DIAG_RUNNING, &data->flags);
1952
1953 btusb_stop_traffic(data);
1954 btusb_free_frags(data);
1955
1956 err = usb_autopm_get_interface(data->intf);
1957 if (err < 0)
1958 goto failed;
1959
1960 data->intf->needs_remote_wakeup = 0;
1961
1962 /* Enable remote wake up for auto-suspend */
1963 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags))
1964 data->intf->needs_remote_wakeup = 1;
1965
1966 usb_autopm_put_interface(data->intf);
1967
1968 failed:
1969 usb_scuttle_anchored_urbs(&data->deferred);
1970 return 0;
1971 }
1972
btusb_flush(struct hci_dev * hdev)1973 static int btusb_flush(struct hci_dev *hdev)
1974 {
1975 struct btusb_data *data = hci_get_drvdata(hdev);
1976
1977 BT_DBG("%s", hdev->name);
1978
1979 cancel_delayed_work(&data->rx_work);
1980
1981 skb_queue_purge(&data->acl_q);
1982
1983 usb_kill_anchored_urbs(&data->tx_anchor);
1984 btusb_free_frags(data);
1985
1986 return 0;
1987 }
1988
alloc_ctrl_urb(struct hci_dev * hdev,struct sk_buff * skb)1989 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
1990 {
1991 struct btusb_data *data = hci_get_drvdata(hdev);
1992 struct usb_ctrlrequest *dr;
1993 struct urb *urb;
1994 unsigned int pipe;
1995
1996 urb = usb_alloc_urb(0, GFP_KERNEL);
1997 if (!urb)
1998 return ERR_PTR(-ENOMEM);
1999
2000 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
2001 if (!dr) {
2002 usb_free_urb(urb);
2003 return ERR_PTR(-ENOMEM);
2004 }
2005
2006 dr->bRequestType = data->cmdreq_type;
2007 dr->bRequest = data->cmdreq;
2008 dr->wIndex = 0;
2009 dr->wValue = 0;
2010 dr->wLength = __cpu_to_le16(skb->len);
2011
2012 pipe = usb_sndctrlpipe(data->udev, 0x00);
2013
2014 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
2015 skb->data, skb->len, btusb_tx_complete, skb);
2016
2017 skb->dev = (void *)hdev;
2018
2019 return urb;
2020 }
2021
alloc_bulk_urb(struct hci_dev * hdev,struct sk_buff * skb)2022 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
2023 {
2024 struct btusb_data *data = hci_get_drvdata(hdev);
2025 struct urb *urb;
2026 unsigned int pipe;
2027
2028 if (!data->bulk_tx_ep)
2029 return ERR_PTR(-ENODEV);
2030
2031 urb = usb_alloc_urb(0, GFP_KERNEL);
2032 if (!urb)
2033 return ERR_PTR(-ENOMEM);
2034
2035 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
2036
2037 usb_fill_bulk_urb(urb, data->udev, pipe,
2038 skb->data, skb->len, btusb_tx_complete, skb);
2039
2040 skb->dev = (void *)hdev;
2041
2042 return urb;
2043 }
2044
alloc_isoc_urb(struct hci_dev * hdev,struct sk_buff * skb)2045 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
2046 {
2047 struct btusb_data *data = hci_get_drvdata(hdev);
2048 struct urb *urb;
2049 unsigned int pipe;
2050
2051 if (!data->isoc_tx_ep)
2052 return ERR_PTR(-ENODEV);
2053
2054 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
2055 if (!urb)
2056 return ERR_PTR(-ENOMEM);
2057
2058 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
2059
2060 usb_fill_int_urb(urb, data->udev, pipe,
2061 skb->data, skb->len, btusb_isoc_tx_complete,
2062 skb, data->isoc_tx_ep->bInterval);
2063
2064 urb->transfer_flags = URB_ISO_ASAP;
2065
2066 if (data->isoc_altsetting == 6)
2067 __fill_isoc_descriptor_msbc(urb, skb->len,
2068 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize),
2069 data);
2070 else
2071 __fill_isoc_descriptor(urb, skb->len,
2072 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
2073 skb->dev = (void *)hdev;
2074
2075 return urb;
2076 }
2077
submit_tx_urb(struct hci_dev * hdev,struct urb * urb)2078 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
2079 {
2080 struct btusb_data *data = hci_get_drvdata(hdev);
2081 int err;
2082
2083 usb_anchor_urb(urb, &data->tx_anchor);
2084
2085 err = usb_submit_urb(urb, GFP_KERNEL);
2086 if (err < 0) {
2087 if (err != -EPERM && err != -ENODEV)
2088 bt_dev_err(hdev, "urb %p submission failed (%d)",
2089 urb, -err);
2090 kfree(urb->setup_packet);
2091 usb_unanchor_urb(urb);
2092 } else {
2093 usb_mark_last_busy(data->udev);
2094 }
2095
2096 usb_free_urb(urb);
2097 return err;
2098 }
2099
submit_or_queue_tx_urb(struct hci_dev * hdev,struct urb * urb)2100 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
2101 {
2102 struct btusb_data *data = hci_get_drvdata(hdev);
2103 unsigned long flags;
2104 bool suspending;
2105
2106 spin_lock_irqsave(&data->txlock, flags);
2107 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
2108 if (!suspending)
2109 data->tx_in_flight++;
2110 spin_unlock_irqrestore(&data->txlock, flags);
2111
2112 if (!suspending)
2113 return submit_tx_urb(hdev, urb);
2114
2115 usb_anchor_urb(urb, &data->deferred);
2116 schedule_work(&data->waker);
2117
2118 usb_free_urb(urb);
2119 return 0;
2120 }
2121
btusb_send_frame(struct hci_dev * hdev,struct sk_buff * skb)2122 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
2123 {
2124 struct urb *urb;
2125
2126 BT_DBG("%s", hdev->name);
2127
2128 switch (hci_skb_pkt_type(skb)) {
2129 case HCI_COMMAND_PKT:
2130 urb = alloc_ctrl_urb(hdev, skb);
2131 if (IS_ERR(urb))
2132 return PTR_ERR(urb);
2133
2134 hdev->stat.cmd_tx++;
2135 return submit_or_queue_tx_urb(hdev, urb);
2136
2137 case HCI_ACLDATA_PKT:
2138 urb = alloc_bulk_urb(hdev, skb);
2139 if (IS_ERR(urb))
2140 return PTR_ERR(urb);
2141
2142 hdev->stat.acl_tx++;
2143 return submit_or_queue_tx_urb(hdev, urb);
2144
2145 case HCI_SCODATA_PKT:
2146 if (!hci_dev_test_flag(hdev, HCI_USER_CHANNEL) &&
2147 hci_conn_num(hdev, SCO_LINK) < 1)
2148 return -ENODEV;
2149
2150 urb = alloc_isoc_urb(hdev, skb);
2151 if (IS_ERR(urb))
2152 return PTR_ERR(urb);
2153
2154 hdev->stat.sco_tx++;
2155 return submit_tx_urb(hdev, urb);
2156
2157 case HCI_ISODATA_PKT:
2158 urb = alloc_bulk_urb(hdev, skb);
2159 if (IS_ERR(urb))
2160 return PTR_ERR(urb);
2161
2162 return submit_or_queue_tx_urb(hdev, urb);
2163 }
2164
2165 return -EILSEQ;
2166 }
2167
btusb_notify(struct hci_dev * hdev,unsigned int evt)2168 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
2169 {
2170 struct btusb_data *data = hci_get_drvdata(hdev);
2171
2172 BT_DBG("%s evt %d", hdev->name, evt);
2173
2174 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
2175 data->sco_num = hci_conn_num(hdev, SCO_LINK);
2176 data->air_mode = evt;
2177 schedule_work(&data->work);
2178 }
2179 }
2180
__set_isoc_interface(struct hci_dev * hdev,int altsetting)2181 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
2182 {
2183 struct btusb_data *data = hci_get_drvdata(hdev);
2184 struct usb_interface *intf = data->isoc;
2185 struct usb_endpoint_descriptor *ep_desc;
2186 int i, err;
2187
2188 if (!data->isoc)
2189 return -ENODEV;
2190
2191 err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting);
2192 if (err < 0) {
2193 bt_dev_err(hdev, "setting interface failed (%d)", -err);
2194 return err;
2195 }
2196
2197 data->isoc_altsetting = altsetting;
2198
2199 data->isoc_tx_ep = NULL;
2200 data->isoc_rx_ep = NULL;
2201
2202 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2203 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2204
2205 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
2206 data->isoc_tx_ep = ep_desc;
2207 continue;
2208 }
2209
2210 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
2211 data->isoc_rx_ep = ep_desc;
2212 continue;
2213 }
2214 }
2215
2216 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
2217 bt_dev_err(hdev, "invalid SCO descriptors");
2218 return -ENODEV;
2219 }
2220
2221 return 0;
2222 }
2223
btusb_switch_alt_setting(struct hci_dev * hdev,int new_alts)2224 static int btusb_switch_alt_setting(struct hci_dev *hdev, int new_alts)
2225 {
2226 struct btusb_data *data = hci_get_drvdata(hdev);
2227 int err;
2228
2229 if (data->isoc_altsetting != new_alts) {
2230 unsigned long flags;
2231
2232 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2233 usb_kill_anchored_urbs(&data->isoc_anchor);
2234
2235 /* When isochronous alternate setting needs to be
2236 * changed, because SCO connection has been added
2237 * or removed, a packet fragment may be left in the
2238 * reassembling state. This could lead to wrongly
2239 * assembled fragments.
2240 *
2241 * Clear outstanding fragment when selecting a new
2242 * alternate setting.
2243 */
2244 spin_lock_irqsave(&data->rxlock, flags);
2245 dev_kfree_skb_irq(data->sco_skb);
2246 data->sco_skb = NULL;
2247 spin_unlock_irqrestore(&data->rxlock, flags);
2248
2249 err = __set_isoc_interface(hdev, new_alts);
2250 if (err < 0)
2251 return err;
2252 }
2253
2254 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2255 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
2256 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2257 else
2258 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
2259 }
2260
2261 return 0;
2262 }
2263
btusb_find_altsetting(struct btusb_data * data,int alt)2264 static struct usb_host_interface *btusb_find_altsetting(struct btusb_data *data,
2265 int alt)
2266 {
2267 struct usb_interface *intf = data->isoc;
2268 int i;
2269
2270 BT_DBG("Looking for Alt no :%d", alt);
2271
2272 if (!intf)
2273 return NULL;
2274
2275 for (i = 0; i < intf->num_altsetting; i++) {
2276 if (intf->altsetting[i].desc.bAlternateSetting == alt)
2277 return &intf->altsetting[i];
2278 }
2279
2280 return NULL;
2281 }
2282
btusb_work(struct work_struct * work)2283 static void btusb_work(struct work_struct *work)
2284 {
2285 struct btusb_data *data = container_of(work, struct btusb_data, work);
2286 struct hci_dev *hdev = data->hdev;
2287 int new_alts = 0;
2288 int err;
2289
2290 if (data->sco_num > 0) {
2291 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
2292 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
2293 if (err < 0) {
2294 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2295 usb_kill_anchored_urbs(&data->isoc_anchor);
2296 return;
2297 }
2298
2299 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
2300 }
2301
2302 if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_CVSD) {
2303 if (hdev->voice_setting & 0x0020) {
2304 static const int alts[3] = { 2, 4, 5 };
2305
2306 new_alts = alts[data->sco_num - 1];
2307 } else {
2308 new_alts = data->sco_num;
2309 }
2310 } else if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_TRANSP) {
2311 /* Bluetooth USB spec recommends alt 6 (63 bytes), but
2312 * many adapters do not support it. Alt 1 appears to
2313 * work for all adapters that do not have alt 6, and
2314 * which work with WBS at all. Some devices prefer
2315 * alt 3 (HCI payload >= 60 Bytes let air packet
2316 * data satisfy 60 bytes), requiring
2317 * MTU >= 3 (packets) * 25 (size) - 3 (headers) = 72
2318 * see also Core spec 5, vol 4, B 2.1.1 & Table 2.1.
2319 */
2320 if (btusb_find_altsetting(data, 6))
2321 new_alts = 6;
2322 else if (btusb_find_altsetting(data, 3) &&
2323 hdev->sco_mtu >= 72 &&
2324 test_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags))
2325 new_alts = 3;
2326 else
2327 new_alts = 1;
2328 }
2329
2330 if (btusb_switch_alt_setting(hdev, new_alts) < 0)
2331 bt_dev_err(hdev, "set USB alt:(%d) failed!", new_alts);
2332 } else {
2333 usb_kill_anchored_urbs(&data->isoc_anchor);
2334
2335 if (test_and_clear_bit(BTUSB_ISOC_RUNNING, &data->flags))
2336 __set_isoc_interface(hdev, 0);
2337
2338 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
2339 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
2340 }
2341 }
2342
btusb_waker(struct work_struct * work)2343 static void btusb_waker(struct work_struct *work)
2344 {
2345 struct btusb_data *data = container_of(work, struct btusb_data, waker);
2346 int err;
2347
2348 err = usb_autopm_get_interface(data->intf);
2349 if (err < 0)
2350 return;
2351
2352 usb_autopm_put_interface(data->intf);
2353 }
2354
btusb_rx_work(struct work_struct * work)2355 static void btusb_rx_work(struct work_struct *work)
2356 {
2357 struct btusb_data *data = container_of(work, struct btusb_data,
2358 rx_work.work);
2359 struct sk_buff *skb;
2360
2361 /* Dequeue ACL data received during the interval */
2362 while ((skb = skb_dequeue(&data->acl_q)))
2363 data->recv_acl(data->hdev, skb);
2364 }
2365
btusb_setup_bcm92035(struct hci_dev * hdev)2366 static int btusb_setup_bcm92035(struct hci_dev *hdev)
2367 {
2368 struct sk_buff *skb;
2369 u8 val = 0x00;
2370
2371 BT_DBG("%s", hdev->name);
2372
2373 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
2374 if (IS_ERR(skb))
2375 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb));
2376 else
2377 kfree_skb(skb);
2378
2379 return 0;
2380 }
2381
btusb_setup_csr(struct hci_dev * hdev)2382 static int btusb_setup_csr(struct hci_dev *hdev)
2383 {
2384 struct btusb_data *data = hci_get_drvdata(hdev);
2385 u16 bcdDevice = le16_to_cpu(data->udev->descriptor.bcdDevice);
2386 struct hci_rp_read_local_version *rp;
2387 struct sk_buff *skb;
2388 bool is_fake = false;
2389 int ret;
2390
2391 BT_DBG("%s", hdev->name);
2392
2393 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
2394 HCI_INIT_TIMEOUT);
2395 if (IS_ERR(skb)) {
2396 int err = PTR_ERR(skb);
2397 bt_dev_err(hdev, "CSR: Local version failed (%d)", err);
2398 return err;
2399 }
2400
2401 rp = skb_pull_data(skb, sizeof(*rp));
2402 if (!rp) {
2403 bt_dev_err(hdev, "CSR: Local version length mismatch");
2404 kfree_skb(skb);
2405 return -EIO;
2406 }
2407
2408 bt_dev_info(hdev, "CSR: Setting up dongle with HCI ver=%u rev=%04x",
2409 rp->hci_ver, le16_to_cpu(rp->hci_rev));
2410
2411 bt_dev_info(hdev, "LMP ver=%u subver=%04x; manufacturer=%u",
2412 rp->lmp_ver, le16_to_cpu(rp->lmp_subver),
2413 le16_to_cpu(rp->manufacturer));
2414
2415 /* Detect a wide host of Chinese controllers that aren't CSR.
2416 *
2417 * Known fake bcdDevices: 0x0100, 0x0134, 0x1915, 0x2520, 0x7558, 0x8891
2418 *
2419 * The main thing they have in common is that these are really popular low-cost
2420 * options that support newer Bluetooth versions but rely on heavy VID/PID
2421 * squatting of this poor old Bluetooth 1.1 device. Even sold as such.
2422 *
2423 * We detect actual CSR devices by checking that the HCI manufacturer code
2424 * is Cambridge Silicon Radio (10) and ensuring that LMP sub-version and
2425 * HCI rev values always match. As they both store the firmware number.
2426 */
2427 if (le16_to_cpu(rp->manufacturer) != 10 ||
2428 le16_to_cpu(rp->hci_rev) != le16_to_cpu(rp->lmp_subver))
2429 is_fake = true;
2430
2431 /* Known legit CSR firmware build numbers and their supported BT versions:
2432 * - 1.1 (0x1) -> 0x0073, 0x020d, 0x033c, 0x034e
2433 * - 1.2 (0x2) -> 0x04d9, 0x0529
2434 * - 2.0 (0x3) -> 0x07a6, 0x07ad, 0x0c5c
2435 * - 2.1 (0x4) -> 0x149c, 0x1735, 0x1899 (0x1899 is a BlueCore4-External)
2436 * - 4.0 (0x6) -> 0x1d86, 0x2031, 0x22bb
2437 *
2438 * e.g. Real CSR dongles with LMP subversion 0x73 are old enough that
2439 * support BT 1.1 only; so it's a dead giveaway when some
2440 * third-party BT 4.0 dongle reuses it.
2441 */
2442 else if (le16_to_cpu(rp->lmp_subver) <= 0x034e &&
2443 rp->hci_ver > BLUETOOTH_VER_1_1)
2444 is_fake = true;
2445
2446 else if (le16_to_cpu(rp->lmp_subver) <= 0x0529 &&
2447 rp->hci_ver > BLUETOOTH_VER_1_2)
2448 is_fake = true;
2449
2450 else if (le16_to_cpu(rp->lmp_subver) <= 0x0c5c &&
2451 rp->hci_ver > BLUETOOTH_VER_2_0)
2452 is_fake = true;
2453
2454 else if (le16_to_cpu(rp->lmp_subver) <= 0x1899 &&
2455 rp->hci_ver > BLUETOOTH_VER_2_1)
2456 is_fake = true;
2457
2458 else if (le16_to_cpu(rp->lmp_subver) <= 0x22bb &&
2459 rp->hci_ver > BLUETOOTH_VER_4_0)
2460 is_fake = true;
2461
2462 /* Other clones which beat all the above checks */
2463 else if (bcdDevice == 0x0134 &&
2464 le16_to_cpu(rp->lmp_subver) == 0x0c5c &&
2465 rp->hci_ver == BLUETOOTH_VER_2_0)
2466 is_fake = true;
2467
2468 if (is_fake) {
2469 bt_dev_warn(hdev, "CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once...");
2470
2471 /* Generally these clones have big discrepancies between
2472 * advertised features and what's actually supported.
2473 * Probably will need to be expanded in the future;
2474 * without these the controller will lock up.
2475 */
2476 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
2477 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks);
2478 set_bit(HCI_QUIRK_BROKEN_FILTER_CLEAR_ALL, &hdev->quirks);
2479 set_bit(HCI_QUIRK_NO_SUSPEND_NOTIFIER, &hdev->quirks);
2480
2481 /* Clear the reset quirk since this is not an actual
2482 * early Bluetooth 1.1 device from CSR.
2483 */
2484 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
2485 clear_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
2486
2487 /*
2488 * Special workaround for these BT 4.0 chip clones, and potentially more:
2489 *
2490 * - 0x0134: a Barrot 8041a02 (HCI rev: 0x0810 sub: 0x1012)
2491 * - 0x7558: IC markings FR3191AHAL 749H15143 (HCI rev/sub-version: 0x0709)
2492 *
2493 * These controllers are really messed-up.
2494 *
2495 * 1. Their bulk RX endpoint will never report any data unless
2496 * the device was suspended at least once (yes, really).
2497 * 2. They will not wakeup when autosuspended and receiving data
2498 * on their bulk RX endpoint from e.g. a keyboard or mouse
2499 * (IOW remote-wakeup support is broken for the bulk endpoint).
2500 *
2501 * To fix 1. enable runtime-suspend, force-suspend the
2502 * HCI and then wake-it up by disabling runtime-suspend.
2503 *
2504 * To fix 2. clear the HCI's can_wake flag, this way the HCI
2505 * will still be autosuspended when it is not open.
2506 *
2507 * --
2508 *
2509 * Because these are widespread problems we prefer generic solutions; so
2510 * apply this initialization quirk to every controller that gets here,
2511 * it should be harmless. The alternative is to not work at all.
2512 */
2513 pm_runtime_allow(&data->udev->dev);
2514
2515 ret = pm_runtime_suspend(&data->udev->dev);
2516 if (ret >= 0)
2517 msleep(200);
2518 else
2519 bt_dev_warn(hdev, "CSR: Couldn't suspend the device for our Barrot 8041a02 receive-issue workaround");
2520
2521 pm_runtime_forbid(&data->udev->dev);
2522
2523 device_set_wakeup_capable(&data->udev->dev, false);
2524
2525 /* Re-enable autosuspend if this was requested */
2526 if (enable_autosuspend)
2527 usb_enable_autosuspend(data->udev);
2528 }
2529
2530 kfree_skb(skb);
2531
2532 return 0;
2533 }
2534
inject_cmd_complete(struct hci_dev * hdev,__u16 opcode)2535 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
2536 {
2537 struct sk_buff *skb;
2538 struct hci_event_hdr *hdr;
2539 struct hci_ev_cmd_complete *evt;
2540
2541 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL);
2542 if (!skb)
2543 return -ENOMEM;
2544
2545 hdr = skb_put(skb, sizeof(*hdr));
2546 hdr->evt = HCI_EV_CMD_COMPLETE;
2547 hdr->plen = sizeof(*evt) + 1;
2548
2549 evt = skb_put(skb, sizeof(*evt));
2550 evt->ncmd = 0x01;
2551 evt->opcode = cpu_to_le16(opcode);
2552
2553 skb_put_u8(skb, 0x00);
2554
2555 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
2556
2557 return hci_recv_frame(hdev, skb);
2558 }
2559
btusb_recv_bulk_intel(struct btusb_data * data,void * buffer,int count)2560 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
2561 int count)
2562 {
2563 struct hci_dev *hdev = data->hdev;
2564
2565 /* When the device is in bootloader mode, then it can send
2566 * events via the bulk endpoint. These events are treated the
2567 * same way as the ones received from the interrupt endpoint.
2568 */
2569 if (btintel_test_flag(hdev, INTEL_BOOTLOADER))
2570 return btusb_recv_intr(data, buffer, count);
2571
2572 return btusb_recv_bulk(data, buffer, count);
2573 }
2574
btusb_send_frame_intel(struct hci_dev * hdev,struct sk_buff * skb)2575 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
2576 {
2577 struct urb *urb;
2578
2579 BT_DBG("%s", hdev->name);
2580
2581 switch (hci_skb_pkt_type(skb)) {
2582 case HCI_COMMAND_PKT:
2583 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) {
2584 struct hci_command_hdr *cmd = (void *)skb->data;
2585 __u16 opcode = le16_to_cpu(cmd->opcode);
2586
2587 /* When in bootloader mode and the command 0xfc09
2588 * is received, it needs to be send down the
2589 * bulk endpoint. So allocate a bulk URB instead.
2590 */
2591 if (opcode == 0xfc09)
2592 urb = alloc_bulk_urb(hdev, skb);
2593 else
2594 urb = alloc_ctrl_urb(hdev, skb);
2595
2596 /* When the 0xfc01 command is issued to boot into
2597 * the operational firmware, it will actually not
2598 * send a command complete event. To keep the flow
2599 * control working inject that event here.
2600 */
2601 if (opcode == 0xfc01)
2602 inject_cmd_complete(hdev, opcode);
2603 } else {
2604 urb = alloc_ctrl_urb(hdev, skb);
2605 }
2606 if (IS_ERR(urb))
2607 return PTR_ERR(urb);
2608
2609 hdev->stat.cmd_tx++;
2610 return submit_or_queue_tx_urb(hdev, urb);
2611
2612 case HCI_ACLDATA_PKT:
2613 urb = alloc_bulk_urb(hdev, skb);
2614 if (IS_ERR(urb))
2615 return PTR_ERR(urb);
2616
2617 hdev->stat.acl_tx++;
2618 return submit_or_queue_tx_urb(hdev, urb);
2619
2620 case HCI_SCODATA_PKT:
2621 if (!hci_dev_test_flag(hdev, HCI_USER_CHANNEL) &&
2622 hci_conn_num(hdev, SCO_LINK) < 1)
2623 return -ENODEV;
2624
2625 urb = alloc_isoc_urb(hdev, skb);
2626 if (IS_ERR(urb))
2627 return PTR_ERR(urb);
2628
2629 hdev->stat.sco_tx++;
2630 return submit_tx_urb(hdev, urb);
2631
2632 case HCI_ISODATA_PKT:
2633 urb = alloc_bulk_urb(hdev, skb);
2634 if (IS_ERR(urb))
2635 return PTR_ERR(urb);
2636
2637 return submit_or_queue_tx_urb(hdev, urb);
2638 }
2639
2640 return -EILSEQ;
2641 }
2642
btusb_setup_realtek(struct hci_dev * hdev)2643 static int btusb_setup_realtek(struct hci_dev *hdev)
2644 {
2645 struct btusb_data *data = hci_get_drvdata(hdev);
2646 int ret;
2647
2648 ret = btrtl_setup_realtek(hdev);
2649
2650 if (btrealtek_test_flag(data->hdev, REALTEK_ALT6_CONTINUOUS_TX_CHIP))
2651 set_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags);
2652
2653 return ret;
2654 }
2655
btusb_recv_event_realtek(struct hci_dev * hdev,struct sk_buff * skb)2656 static int btusb_recv_event_realtek(struct hci_dev *hdev, struct sk_buff *skb)
2657 {
2658 if (skb->data[0] == HCI_VENDOR_PKT && skb->data[2] == RTK_SUB_EVENT_CODE_COREDUMP) {
2659 struct rtk_dev_coredump_hdr hdr = {
2660 .code = RTK_DEVCOREDUMP_CODE_MEMDUMP,
2661 };
2662
2663 bt_dev_dbg(hdev, "RTL: received coredump vendor evt, len %u",
2664 skb->len);
2665
2666 btusb_rtl_alloc_devcoredump(hdev, &hdr, skb->data, skb->len);
2667 kfree_skb(skb);
2668
2669 return 0;
2670 }
2671
2672 return hci_recv_frame(hdev, skb);
2673 }
2674
btusb_mtk_claim_iso_intf(struct btusb_data * data)2675 static void btusb_mtk_claim_iso_intf(struct btusb_data *data)
2676 {
2677 struct btmtk_data *btmtk_data = hci_get_priv(data->hdev);
2678 int err;
2679
2680 /*
2681 * The function usb_driver_claim_interface() is documented to need
2682 * locks held if it's not called from a probe routine. The code here
2683 * is called from the hci_power_on workqueue, so grab the lock.
2684 */
2685 device_lock(&btmtk_data->isopkt_intf->dev);
2686 err = usb_driver_claim_interface(&btusb_driver,
2687 btmtk_data->isopkt_intf, data);
2688 device_unlock(&btmtk_data->isopkt_intf->dev);
2689 if (err < 0) {
2690 btmtk_data->isopkt_intf = NULL;
2691 bt_dev_err(data->hdev, "Failed to claim iso interface");
2692 return;
2693 }
2694
2695 set_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags);
2696 init_usb_anchor(&btmtk_data->isopkt_anchor);
2697 }
2698
btusb_mtk_release_iso_intf(struct hci_dev * hdev)2699 static void btusb_mtk_release_iso_intf(struct hci_dev *hdev)
2700 {
2701 struct btmtk_data *btmtk_data = hci_get_priv(hdev);
2702
2703 if (test_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags)) {
2704 usb_kill_anchored_urbs(&btmtk_data->isopkt_anchor);
2705 clear_bit(BTMTK_ISOPKT_RUNNING, &btmtk_data->flags);
2706
2707 dev_kfree_skb_irq(btmtk_data->isopkt_skb);
2708 btmtk_data->isopkt_skb = NULL;
2709 usb_set_intfdata(btmtk_data->isopkt_intf, NULL);
2710 usb_driver_release_interface(&btusb_driver,
2711 btmtk_data->isopkt_intf);
2712 }
2713
2714 clear_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags);
2715 }
2716
btusb_mtk_disconnect(struct hci_dev * hdev)2717 static int btusb_mtk_disconnect(struct hci_dev *hdev)
2718 {
2719 /* This function describes the specific additional steps taken by MediaTek
2720 * when Bluetooth usb driver's resume function is called.
2721 */
2722 btusb_mtk_release_iso_intf(hdev);
2723
2724 return 0;
2725 }
2726
btusb_mtk_reset(struct hci_dev * hdev,void * rst_data)2727 static int btusb_mtk_reset(struct hci_dev *hdev, void *rst_data)
2728 {
2729 struct btusb_data *data = hci_get_drvdata(hdev);
2730 struct btmtk_data *btmtk_data = hci_get_priv(hdev);
2731 int err;
2732
2733 /* It's MediaTek specific bluetooth reset mechanism via USB */
2734 if (test_and_set_bit(BTMTK_HW_RESET_ACTIVE, &btmtk_data->flags)) {
2735 bt_dev_err(hdev, "last reset failed? Not resetting again");
2736 return -EBUSY;
2737 }
2738
2739 err = usb_autopm_get_interface(data->intf);
2740 if (err < 0)
2741 return err;
2742
2743 /* Release MediaTek ISO data interface */
2744 btusb_mtk_release_iso_intf(hdev);
2745
2746 btusb_stop_traffic(data);
2747 usb_kill_anchored_urbs(&data->tx_anchor);
2748
2749 err = btmtk_usb_subsys_reset(hdev, btmtk_data->dev_id);
2750
2751 usb_queue_reset_device(data->intf);
2752 clear_bit(BTMTK_HW_RESET_ACTIVE, &btmtk_data->flags);
2753
2754 return err;
2755 }
2756
btusb_send_frame_mtk(struct hci_dev * hdev,struct sk_buff * skb)2757 static int btusb_send_frame_mtk(struct hci_dev *hdev, struct sk_buff *skb)
2758 {
2759 struct urb *urb;
2760
2761 BT_DBG("%s", hdev->name);
2762
2763 if (hci_skb_pkt_type(skb) == HCI_ISODATA_PKT) {
2764 urb = alloc_mtk_intr_urb(hdev, skb, btusb_tx_complete);
2765 if (IS_ERR(urb))
2766 return PTR_ERR(urb);
2767
2768 return submit_or_queue_tx_urb(hdev, urb);
2769 } else {
2770 return btusb_send_frame(hdev, skb);
2771 }
2772 }
2773
btusb_mtk_setup(struct hci_dev * hdev)2774 static int btusb_mtk_setup(struct hci_dev *hdev)
2775 {
2776 struct btusb_data *data = hci_get_drvdata(hdev);
2777 struct btmtk_data *btmtk_data = hci_get_priv(hdev);
2778
2779 /* MediaTek WMT vendor cmd requiring below USB resources to
2780 * complete the handshake.
2781 */
2782 btmtk_data->drv_name = btusb_driver.name;
2783 btmtk_data->intf = data->intf;
2784 btmtk_data->udev = data->udev;
2785 btmtk_data->ctrl_anchor = &data->ctrl_anchor;
2786 btmtk_data->reset_sync = btusb_mtk_reset;
2787
2788 /* Claim ISO data interface and endpoint */
2789 if (!test_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags)) {
2790 btmtk_data->isopkt_intf = usb_ifnum_to_if(data->udev, MTK_ISO_IFNUM);
2791 btusb_mtk_claim_iso_intf(data);
2792 }
2793
2794 return btmtk_usb_setup(hdev);
2795 }
2796
btusb_mtk_shutdown(struct hci_dev * hdev)2797 static int btusb_mtk_shutdown(struct hci_dev *hdev)
2798 {
2799 int ret;
2800
2801 ret = btmtk_usb_shutdown(hdev);
2802
2803 /* Release MediaTek iso interface after shutdown */
2804 btusb_mtk_release_iso_intf(hdev);
2805
2806 return ret;
2807 }
2808
2809 #ifdef CONFIG_PM
2810 /* Configure an out-of-band gpio as wake-up pin, if specified in device tree */
marvell_config_oob_wake(struct hci_dev * hdev)2811 static int marvell_config_oob_wake(struct hci_dev *hdev)
2812 {
2813 struct sk_buff *skb;
2814 struct btusb_data *data = hci_get_drvdata(hdev);
2815 struct device *dev = &data->udev->dev;
2816 u16 pin, gap, opcode;
2817 int ret;
2818 u8 cmd[5];
2819
2820 /* Move on if no wakeup pin specified */
2821 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) ||
2822 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap))
2823 return 0;
2824
2825 /* Vendor specific command to configure a GPIO as wake-up pin */
2826 opcode = hci_opcode_pack(0x3F, 0x59);
2827 cmd[0] = opcode & 0xFF;
2828 cmd[1] = opcode >> 8;
2829 cmd[2] = 2; /* length of parameters that follow */
2830 cmd[3] = pin;
2831 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */
2832
2833 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
2834 if (!skb) {
2835 bt_dev_err(hdev, "%s: No memory", __func__);
2836 return -ENOMEM;
2837 }
2838
2839 skb_put_data(skb, cmd, sizeof(cmd));
2840 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT;
2841
2842 ret = btusb_send_frame(hdev, skb);
2843 if (ret) {
2844 bt_dev_err(hdev, "%s: configuration failed", __func__);
2845 kfree_skb(skb);
2846 return ret;
2847 }
2848
2849 return 0;
2850 }
2851 #endif
2852
btusb_set_bdaddr_marvell(struct hci_dev * hdev,const bdaddr_t * bdaddr)2853 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
2854 const bdaddr_t *bdaddr)
2855 {
2856 struct sk_buff *skb;
2857 u8 buf[8];
2858 long ret;
2859
2860 buf[0] = 0xfe;
2861 buf[1] = sizeof(bdaddr_t);
2862 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
2863
2864 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2865 if (IS_ERR(skb)) {
2866 ret = PTR_ERR(skb);
2867 bt_dev_err(hdev, "changing Marvell device address failed (%ld)",
2868 ret);
2869 return ret;
2870 }
2871 kfree_skb(skb);
2872
2873 return 0;
2874 }
2875
btusb_set_bdaddr_ath3012(struct hci_dev * hdev,const bdaddr_t * bdaddr)2876 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
2877 const bdaddr_t *bdaddr)
2878 {
2879 struct sk_buff *skb;
2880 u8 buf[10];
2881 long ret;
2882
2883 buf[0] = 0x01;
2884 buf[1] = 0x01;
2885 buf[2] = 0x00;
2886 buf[3] = sizeof(bdaddr_t);
2887 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
2888
2889 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2890 if (IS_ERR(skb)) {
2891 ret = PTR_ERR(skb);
2892 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
2893 return ret;
2894 }
2895 kfree_skb(skb);
2896
2897 return 0;
2898 }
2899
btusb_set_bdaddr_wcn6855(struct hci_dev * hdev,const bdaddr_t * bdaddr)2900 static int btusb_set_bdaddr_wcn6855(struct hci_dev *hdev,
2901 const bdaddr_t *bdaddr)
2902 {
2903 struct sk_buff *skb;
2904 u8 buf[6];
2905 long ret;
2906
2907 memcpy(buf, bdaddr, sizeof(bdaddr_t));
2908
2909 skb = __hci_cmd_sync_ev(hdev, 0xfc14, sizeof(buf), buf,
2910 HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT);
2911 if (IS_ERR(skb)) {
2912 ret = PTR_ERR(skb);
2913 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
2914 return ret;
2915 }
2916 kfree_skb(skb);
2917
2918 return 0;
2919 }
2920
2921 #define QCA_MEMDUMP_ACL_HANDLE 0x2EDD
2922 #define QCA_MEMDUMP_SIZE_MAX 0x100000
2923 #define QCA_MEMDUMP_VSE_CLASS 0x01
2924 #define QCA_MEMDUMP_MSG_TYPE 0x08
2925 #define QCA_MEMDUMP_PKT_SIZE 248
2926 #define QCA_LAST_SEQUENCE_NUM 0xffff
2927
2928 struct qca_dump_hdr {
2929 u8 vse_class;
2930 u8 msg_type;
2931 __le16 seqno;
2932 u8 reserved;
2933 union {
2934 u8 data[0];
2935 struct {
2936 __le32 ram_dump_size;
2937 u8 data0[0];
2938 } __packed;
2939 };
2940 } __packed;
2941
2942
btusb_dump_hdr_qca(struct hci_dev * hdev,struct sk_buff * skb)2943 static void btusb_dump_hdr_qca(struct hci_dev *hdev, struct sk_buff *skb)
2944 {
2945 char buf[128];
2946 struct btusb_data *btdata = hci_get_drvdata(hdev);
2947
2948 snprintf(buf, sizeof(buf), "Controller Name: 0x%x\n",
2949 btdata->qca_dump.controller_id);
2950 skb_put_data(skb, buf, strlen(buf));
2951
2952 snprintf(buf, sizeof(buf), "Firmware Version: 0x%x\n",
2953 btdata->qca_dump.fw_version);
2954 skb_put_data(skb, buf, strlen(buf));
2955
2956 snprintf(buf, sizeof(buf), "Driver: %s\nVendor: qca\n",
2957 btusb_driver.name);
2958 skb_put_data(skb, buf, strlen(buf));
2959
2960 snprintf(buf, sizeof(buf), "VID: 0x%x\nPID:0x%x\n",
2961 btdata->qca_dump.id_vendor, btdata->qca_dump.id_product);
2962 skb_put_data(skb, buf, strlen(buf));
2963
2964 snprintf(buf, sizeof(buf), "Lmp Subversion: 0x%x\n",
2965 hdev->lmp_subver);
2966 skb_put_data(skb, buf, strlen(buf));
2967 }
2968
btusb_coredump_qca(struct hci_dev * hdev)2969 static void btusb_coredump_qca(struct hci_dev *hdev)
2970 {
2971 int err;
2972 static const u8 param[] = { 0x26 };
2973
2974 err = __hci_cmd_send(hdev, 0xfc0c, 1, param);
2975 if (err < 0)
2976 bt_dev_err(hdev, "%s: triggle crash failed (%d)", __func__, err);
2977 }
2978
2979 /*
2980 * ==0: not a dump pkt.
2981 * < 0: fails to handle a dump pkt
2982 * > 0: otherwise.
2983 */
handle_dump_pkt_qca(struct hci_dev * hdev,struct sk_buff * skb)2984 static int handle_dump_pkt_qca(struct hci_dev *hdev, struct sk_buff *skb)
2985 {
2986 int ret = 1;
2987 u8 pkt_type;
2988 u8 *sk_ptr;
2989 unsigned int sk_len;
2990 u16 seqno;
2991 u32 dump_size;
2992
2993 struct hci_event_hdr *event_hdr;
2994 struct hci_acl_hdr *acl_hdr;
2995 struct qca_dump_hdr *dump_hdr;
2996 struct btusb_data *btdata = hci_get_drvdata(hdev);
2997 struct usb_device *udev = btdata->udev;
2998
2999 pkt_type = hci_skb_pkt_type(skb);
3000 sk_ptr = skb->data;
3001 sk_len = skb->len;
3002
3003 if (pkt_type == HCI_ACLDATA_PKT) {
3004 acl_hdr = hci_acl_hdr(skb);
3005 if (le16_to_cpu(acl_hdr->handle) != QCA_MEMDUMP_ACL_HANDLE)
3006 return 0;
3007 sk_ptr += HCI_ACL_HDR_SIZE;
3008 sk_len -= HCI_ACL_HDR_SIZE;
3009 event_hdr = (struct hci_event_hdr *)sk_ptr;
3010 } else {
3011 event_hdr = hci_event_hdr(skb);
3012 }
3013
3014 if ((event_hdr->evt != HCI_VENDOR_PKT)
3015 || (event_hdr->plen != (sk_len - HCI_EVENT_HDR_SIZE)))
3016 return 0;
3017
3018 sk_ptr += HCI_EVENT_HDR_SIZE;
3019 sk_len -= HCI_EVENT_HDR_SIZE;
3020
3021 dump_hdr = (struct qca_dump_hdr *)sk_ptr;
3022 if ((sk_len < offsetof(struct qca_dump_hdr, data))
3023 || (dump_hdr->vse_class != QCA_MEMDUMP_VSE_CLASS)
3024 || (dump_hdr->msg_type != QCA_MEMDUMP_MSG_TYPE))
3025 return 0;
3026
3027 /*it is dump pkt now*/
3028 seqno = le16_to_cpu(dump_hdr->seqno);
3029 if (seqno == 0) {
3030 set_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags);
3031 dump_size = le32_to_cpu(dump_hdr->ram_dump_size);
3032 if (!dump_size || (dump_size > QCA_MEMDUMP_SIZE_MAX)) {
3033 ret = -EILSEQ;
3034 bt_dev_err(hdev, "Invalid memdump size(%u)",
3035 dump_size);
3036 goto out;
3037 }
3038
3039 ret = hci_devcd_init(hdev, dump_size);
3040 if (ret < 0) {
3041 bt_dev_err(hdev, "memdump init error(%d)", ret);
3042 goto out;
3043 }
3044
3045 btdata->qca_dump.ram_dump_size = dump_size;
3046 btdata->qca_dump.ram_dump_seqno = 0;
3047 sk_ptr += offsetof(struct qca_dump_hdr, data0);
3048 sk_len -= offsetof(struct qca_dump_hdr, data0);
3049
3050 usb_disable_autosuspend(udev);
3051 bt_dev_info(hdev, "%s memdump size(%u)\n",
3052 (pkt_type == HCI_ACLDATA_PKT) ? "ACL" : "event",
3053 dump_size);
3054 } else {
3055 sk_ptr += offsetof(struct qca_dump_hdr, data);
3056 sk_len -= offsetof(struct qca_dump_hdr, data);
3057 }
3058
3059 if (!btdata->qca_dump.ram_dump_size) {
3060 ret = -EINVAL;
3061 bt_dev_err(hdev, "memdump is not active");
3062 goto out;
3063 }
3064
3065 if ((seqno > btdata->qca_dump.ram_dump_seqno + 1) && (seqno != QCA_LAST_SEQUENCE_NUM)) {
3066 dump_size = QCA_MEMDUMP_PKT_SIZE * (seqno - btdata->qca_dump.ram_dump_seqno - 1);
3067 hci_devcd_append_pattern(hdev, 0x0, dump_size);
3068 bt_dev_err(hdev,
3069 "expected memdump seqno(%u) is not received(%u)\n",
3070 btdata->qca_dump.ram_dump_seqno, seqno);
3071 btdata->qca_dump.ram_dump_seqno = seqno;
3072 kfree_skb(skb);
3073 return ret;
3074 }
3075
3076 skb_pull(skb, skb->len - sk_len);
3077 hci_devcd_append(hdev, skb);
3078 btdata->qca_dump.ram_dump_seqno++;
3079 if (seqno == QCA_LAST_SEQUENCE_NUM) {
3080 bt_dev_info(hdev,
3081 "memdump done: pkts(%u), total(%u)\n",
3082 btdata->qca_dump.ram_dump_seqno, btdata->qca_dump.ram_dump_size);
3083
3084 hci_devcd_complete(hdev);
3085 goto out;
3086 }
3087 return ret;
3088
3089 out:
3090 if (btdata->qca_dump.ram_dump_size)
3091 usb_enable_autosuspend(udev);
3092 btdata->qca_dump.ram_dump_size = 0;
3093 btdata->qca_dump.ram_dump_seqno = 0;
3094 clear_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags);
3095
3096 if (ret < 0)
3097 kfree_skb(skb);
3098 return ret;
3099 }
3100
btusb_recv_acl_qca(struct hci_dev * hdev,struct sk_buff * skb)3101 static int btusb_recv_acl_qca(struct hci_dev *hdev, struct sk_buff *skb)
3102 {
3103 if (handle_dump_pkt_qca(hdev, skb))
3104 return 0;
3105 return hci_recv_frame(hdev, skb);
3106 }
3107
btusb_recv_evt_qca(struct hci_dev * hdev,struct sk_buff * skb)3108 static int btusb_recv_evt_qca(struct hci_dev *hdev, struct sk_buff *skb)
3109 {
3110 if (handle_dump_pkt_qca(hdev, skb))
3111 return 0;
3112 return hci_recv_frame(hdev, skb);
3113 }
3114
3115
3116 #define QCA_DFU_PACKET_LEN 4096
3117
3118 #define QCA_GET_TARGET_VERSION 0x09
3119 #define QCA_CHECK_STATUS 0x05
3120 #define QCA_DFU_DOWNLOAD 0x01
3121
3122 #define QCA_SYSCFG_UPDATED 0x40
3123 #define QCA_PATCH_UPDATED 0x80
3124 #define QCA_DFU_TIMEOUT 3000
3125 #define QCA_FLAG_MULTI_NVM 0x80
3126 #define QCA_BT_RESET_WAIT_MS 100
3127
3128 #define WCN6855_2_0_RAM_VERSION_GF 0x400c1200
3129 #define WCN6855_2_1_RAM_VERSION_GF 0x400c1211
3130
3131 struct qca_version {
3132 __le32 rom_version;
3133 __le32 patch_version;
3134 __le32 ram_version;
3135 __u8 chip_id;
3136 __u8 platform_id;
3137 __le16 flag;
3138 __u8 reserved[4];
3139 } __packed;
3140
3141 struct qca_rampatch_version {
3142 __le16 rom_version_high;
3143 __le16 rom_version_low;
3144 __le16 patch_version;
3145 } __packed;
3146
3147 struct qca_device_info {
3148 u32 rom_version;
3149 u8 rampatch_hdr; /* length of header in rampatch */
3150 u8 nvm_hdr; /* length of header in NVM */
3151 u8 ver_offset; /* offset of version structure in rampatch */
3152 };
3153
3154 static const struct qca_device_info qca_devices_table[] = {
3155 { 0x00000100, 20, 4, 8 }, /* Rome 1.0 */
3156 { 0x00000101, 20, 4, 8 }, /* Rome 1.1 */
3157 { 0x00000200, 28, 4, 16 }, /* Rome 2.0 */
3158 { 0x00000201, 28, 4, 16 }, /* Rome 2.1 */
3159 { 0x00000300, 28, 4, 16 }, /* Rome 3.0 */
3160 { 0x00000302, 28, 4, 16 }, /* Rome 3.2 */
3161 { 0x00130100, 40, 4, 16 }, /* WCN6855 1.0 */
3162 { 0x00130200, 40, 4, 16 }, /* WCN6855 2.0 */
3163 { 0x00130201, 40, 4, 16 }, /* WCN6855 2.1 */
3164 { 0x00190200, 40, 4, 16 }, /* WCN785x 2.0 */
3165 };
3166
btusb_qca_send_vendor_req(struct usb_device * udev,u8 request,void * data,u16 size)3167 static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request,
3168 void *data, u16 size)
3169 {
3170 int pipe, err;
3171 u8 *buf;
3172
3173 buf = kmalloc(size, GFP_KERNEL);
3174 if (!buf)
3175 return -ENOMEM;
3176
3177 /* Found some of USB hosts have IOT issues with ours so that we should
3178 * not wait until HCI layer is ready.
3179 */
3180 pipe = usb_rcvctrlpipe(udev, 0);
3181 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
3182 0, 0, buf, size, USB_CTRL_GET_TIMEOUT);
3183 if (err < 0) {
3184 dev_err(&udev->dev, "Failed to access otp area (%d)", err);
3185 goto done;
3186 }
3187
3188 memcpy(data, buf, size);
3189
3190 done:
3191 kfree(buf);
3192
3193 return err;
3194 }
3195
btusb_setup_qca_download_fw(struct hci_dev * hdev,const struct firmware * firmware,size_t hdr_size)3196 static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
3197 const struct firmware *firmware,
3198 size_t hdr_size)
3199 {
3200 struct btusb_data *btdata = hci_get_drvdata(hdev);
3201 struct usb_device *udev = btdata->udev;
3202 size_t count, size, sent = 0;
3203 int pipe, len, err;
3204 u8 *buf;
3205
3206 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
3207 if (!buf)
3208 return -ENOMEM;
3209
3210 count = firmware->size;
3211
3212 size = min_t(size_t, count, hdr_size);
3213 memcpy(buf, firmware->data, size);
3214
3215 /* USB patches should go down to controller through USB path
3216 * because binary format fits to go down through USB channel.
3217 * USB control path is for patching headers and USB bulk is for
3218 * patch body.
3219 */
3220 pipe = usb_sndctrlpipe(udev, 0);
3221 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
3222 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
3223 if (err < 0) {
3224 bt_dev_err(hdev, "Failed to send headers (%d)", err);
3225 goto done;
3226 }
3227
3228 sent += size;
3229 count -= size;
3230
3231 /* ep2 need time to switch from function acl to function dfu,
3232 * so we add 20ms delay here.
3233 */
3234 msleep(20);
3235
3236 while (count) {
3237 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
3238
3239 memcpy(buf, firmware->data + sent, size);
3240
3241 pipe = usb_sndbulkpipe(udev, 0x02);
3242 err = usb_bulk_msg(udev, pipe, buf, size, &len,
3243 QCA_DFU_TIMEOUT);
3244 if (err < 0) {
3245 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)",
3246 sent, firmware->size, err);
3247 break;
3248 }
3249
3250 if (size != len) {
3251 bt_dev_err(hdev, "Failed to get bulk buffer");
3252 err = -EILSEQ;
3253 break;
3254 }
3255
3256 sent += size;
3257 count -= size;
3258 }
3259
3260 done:
3261 kfree(buf);
3262 return err;
3263 }
3264
btusb_setup_qca_load_rampatch(struct hci_dev * hdev,struct qca_version * ver,const struct qca_device_info * info)3265 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
3266 struct qca_version *ver,
3267 const struct qca_device_info *info)
3268 {
3269 struct qca_rampatch_version *rver;
3270 const struct firmware *fw;
3271 u32 ver_rom, ver_patch, rver_rom;
3272 u16 rver_rom_low, rver_rom_high, rver_patch;
3273 char fwname[64];
3274 int err;
3275
3276 ver_rom = le32_to_cpu(ver->rom_version);
3277 ver_patch = le32_to_cpu(ver->patch_version);
3278
3279 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom);
3280
3281 err = request_firmware(&fw, fwname, &hdev->dev);
3282 if (err) {
3283 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)",
3284 fwname, err);
3285 return err;
3286 }
3287
3288 bt_dev_info(hdev, "using rampatch file: %s", fwname);
3289
3290 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
3291 rver_rom_low = le16_to_cpu(rver->rom_version_low);
3292 rver_patch = le16_to_cpu(rver->patch_version);
3293
3294 if (ver_rom & ~0xffffU) {
3295 rver_rom_high = le16_to_cpu(rver->rom_version_high);
3296 rver_rom = rver_rom_high << 16 | rver_rom_low;
3297 } else {
3298 rver_rom = rver_rom_low;
3299 }
3300
3301 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, "
3302 "firmware rome 0x%x build 0x%x",
3303 rver_rom, rver_patch, ver_rom, ver_patch);
3304
3305 if (rver_rom != ver_rom || rver_patch <= ver_patch) {
3306 bt_dev_err(hdev, "rampatch file version did not match with firmware");
3307 err = -EINVAL;
3308 goto done;
3309 }
3310
3311 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
3312
3313 done:
3314 release_firmware(fw);
3315
3316 return err;
3317 }
3318
btusb_generate_qca_nvm_name(char * fwname,size_t max_size,const struct qca_version * ver)3319 static void btusb_generate_qca_nvm_name(char *fwname, size_t max_size,
3320 const struct qca_version *ver)
3321 {
3322 u32 rom_version = le32_to_cpu(ver->rom_version);
3323 u16 flag = le16_to_cpu(ver->flag);
3324
3325 if (((flag >> 8) & 0xff) == QCA_FLAG_MULTI_NVM) {
3326 /* The board_id should be split into two bytes
3327 * The 1st byte is chip ID, and the 2nd byte is platform ID
3328 * For example, board ID 0x010A, 0x01 is platform ID. 0x0A is chip ID
3329 * we have several platforms, and platform IDs are continuously added
3330 * Platform ID:
3331 * 0x00 is for Mobile
3332 * 0x01 is for X86
3333 * 0x02 is for Automotive
3334 * 0x03 is for Consumer electronic
3335 */
3336 u16 board_id = (ver->chip_id << 8) + ver->platform_id;
3337 const char *variant;
3338
3339 switch (le32_to_cpu(ver->ram_version)) {
3340 case WCN6855_2_0_RAM_VERSION_GF:
3341 case WCN6855_2_1_RAM_VERSION_GF:
3342 variant = "_gf";
3343 break;
3344 default:
3345 variant = "";
3346 break;
3347 }
3348
3349 if (board_id == 0) {
3350 snprintf(fwname, max_size, "qca/nvm_usb_%08x%s.bin",
3351 rom_version, variant);
3352 } else {
3353 snprintf(fwname, max_size, "qca/nvm_usb_%08x%s_%04x.bin",
3354 rom_version, variant, board_id);
3355 }
3356 } else {
3357 snprintf(fwname, max_size, "qca/nvm_usb_%08x.bin",
3358 rom_version);
3359 }
3360
3361 }
3362
btusb_setup_qca_load_nvm(struct hci_dev * hdev,struct qca_version * ver,const struct qca_device_info * info)3363 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
3364 struct qca_version *ver,
3365 const struct qca_device_info *info)
3366 {
3367 const struct firmware *fw;
3368 char fwname[64];
3369 int err;
3370
3371 btusb_generate_qca_nvm_name(fwname, sizeof(fwname), ver);
3372
3373 err = request_firmware(&fw, fwname, &hdev->dev);
3374 if (err) {
3375 bt_dev_err(hdev, "failed to request NVM file: %s (%d)",
3376 fwname, err);
3377 return err;
3378 }
3379
3380 bt_dev_info(hdev, "using NVM file: %s", fwname);
3381
3382 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
3383
3384 release_firmware(fw);
3385
3386 return err;
3387 }
3388
3389 /* identify the ROM version and check whether patches are needed */
btusb_qca_need_patch(struct usb_device * udev)3390 static bool btusb_qca_need_patch(struct usb_device *udev)
3391 {
3392 struct qca_version ver;
3393
3394 if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3395 sizeof(ver)) < 0)
3396 return false;
3397 /* only low ROM versions need patches */
3398 return !(le32_to_cpu(ver.rom_version) & ~0xffffU);
3399 }
3400
btusb_setup_qca(struct hci_dev * hdev)3401 static int btusb_setup_qca(struct hci_dev *hdev)
3402 {
3403 struct btusb_data *btdata = hci_get_drvdata(hdev);
3404 struct usb_device *udev = btdata->udev;
3405 const struct qca_device_info *info = NULL;
3406 struct qca_version ver;
3407 u32 ver_rom;
3408 u8 status;
3409 int i, err;
3410
3411 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3412 sizeof(ver));
3413 if (err < 0)
3414 return err;
3415
3416 ver_rom = le32_to_cpu(ver.rom_version);
3417
3418 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
3419 if (ver_rom == qca_devices_table[i].rom_version)
3420 info = &qca_devices_table[i];
3421 }
3422 if (!info) {
3423 /* If the rom_version is not matched in the qca_devices_table
3424 * and the high ROM version is not zero, we assume this chip no
3425 * need to load the rampatch and nvm.
3426 */
3427 if (ver_rom & ~0xffffU)
3428 return 0;
3429
3430 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom);
3431 return -ENODEV;
3432 }
3433
3434 err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status,
3435 sizeof(status));
3436 if (err < 0)
3437 return err;
3438
3439 if (!(status & QCA_PATCH_UPDATED)) {
3440 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
3441 if (err < 0)
3442 return err;
3443 }
3444
3445 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3446 sizeof(ver));
3447 if (err < 0)
3448 return err;
3449
3450 btdata->qca_dump.fw_version = le32_to_cpu(ver.patch_version);
3451 btdata->qca_dump.controller_id = le32_to_cpu(ver.rom_version);
3452
3453 if (!(status & QCA_SYSCFG_UPDATED)) {
3454 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
3455 if (err < 0)
3456 return err;
3457
3458 /* WCN6855 2.1 and later will reset to apply firmware downloaded here, so
3459 * wait ~100ms for reset Done then go ahead, otherwise, it maybe
3460 * cause potential enable failure.
3461 */
3462 if (info->rom_version >= 0x00130201)
3463 msleep(QCA_BT_RESET_WAIT_MS);
3464 }
3465
3466 /* Mark HCI_OP_ENHANCED_SETUP_SYNC_CONN as broken as it doesn't seem to
3467 * work with the likes of HSP/HFP mSBC.
3468 */
3469 set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks);
3470
3471 return 0;
3472 }
3473
__set_diag_interface(struct hci_dev * hdev)3474 static inline int __set_diag_interface(struct hci_dev *hdev)
3475 {
3476 struct btusb_data *data = hci_get_drvdata(hdev);
3477 struct usb_interface *intf = data->diag;
3478 int i;
3479
3480 if (!data->diag)
3481 return -ENODEV;
3482
3483 data->diag_tx_ep = NULL;
3484 data->diag_rx_ep = NULL;
3485
3486 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
3487 struct usb_endpoint_descriptor *ep_desc;
3488
3489 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
3490
3491 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
3492 data->diag_tx_ep = ep_desc;
3493 continue;
3494 }
3495
3496 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
3497 data->diag_rx_ep = ep_desc;
3498 continue;
3499 }
3500 }
3501
3502 if (!data->diag_tx_ep || !data->diag_rx_ep) {
3503 bt_dev_err(hdev, "invalid diagnostic descriptors");
3504 return -ENODEV;
3505 }
3506
3507 return 0;
3508 }
3509
alloc_diag_urb(struct hci_dev * hdev,bool enable)3510 static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable)
3511 {
3512 struct btusb_data *data = hci_get_drvdata(hdev);
3513 struct sk_buff *skb;
3514 struct urb *urb;
3515 unsigned int pipe;
3516
3517 if (!data->diag_tx_ep)
3518 return ERR_PTR(-ENODEV);
3519
3520 urb = usb_alloc_urb(0, GFP_KERNEL);
3521 if (!urb)
3522 return ERR_PTR(-ENOMEM);
3523
3524 skb = bt_skb_alloc(2, GFP_KERNEL);
3525 if (!skb) {
3526 usb_free_urb(urb);
3527 return ERR_PTR(-ENOMEM);
3528 }
3529
3530 skb_put_u8(skb, 0xf0);
3531 skb_put_u8(skb, enable);
3532
3533 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress);
3534
3535 usb_fill_bulk_urb(urb, data->udev, pipe,
3536 skb->data, skb->len, btusb_tx_complete, skb);
3537
3538 skb->dev = (void *)hdev;
3539
3540 return urb;
3541 }
3542
btusb_bcm_set_diag(struct hci_dev * hdev,bool enable)3543 static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable)
3544 {
3545 struct btusb_data *data = hci_get_drvdata(hdev);
3546 struct urb *urb;
3547
3548 if (!data->diag)
3549 return -ENODEV;
3550
3551 if (!test_bit(HCI_RUNNING, &hdev->flags))
3552 return -ENETDOWN;
3553
3554 urb = alloc_diag_urb(hdev, enable);
3555 if (IS_ERR(urb))
3556 return PTR_ERR(urb);
3557
3558 return submit_or_queue_tx_urb(hdev, urb);
3559 }
3560
3561 #ifdef CONFIG_PM
btusb_oob_wake_handler(int irq,void * priv)3562 static irqreturn_t btusb_oob_wake_handler(int irq, void *priv)
3563 {
3564 struct btusb_data *data = priv;
3565
3566 pm_wakeup_event(&data->udev->dev, 0);
3567 pm_system_wakeup();
3568
3569 /* Disable only if not already disabled (keep it balanced) */
3570 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
3571 disable_irq_nosync(irq);
3572 disable_irq_wake(irq);
3573 }
3574 return IRQ_HANDLED;
3575 }
3576
3577 static const struct of_device_id btusb_match_table[] = {
3578 { .compatible = "usb1286,204e" },
3579 { .compatible = "usbcf3,e300" }, /* QCA6174A */
3580 { .compatible = "usb4ca,301a" }, /* QCA6174A (Lite-On) */
3581 { }
3582 };
3583 MODULE_DEVICE_TABLE(of, btusb_match_table);
3584
3585 /* Use an oob wakeup pin? */
btusb_config_oob_wake(struct hci_dev * hdev)3586 static int btusb_config_oob_wake(struct hci_dev *hdev)
3587 {
3588 struct btusb_data *data = hci_get_drvdata(hdev);
3589 struct device *dev = &data->udev->dev;
3590 int irq, ret;
3591
3592 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
3593
3594 if (!of_match_device(btusb_match_table, dev))
3595 return 0;
3596
3597 /* Move on if no IRQ specified */
3598 irq = of_irq_get_byname(dev->of_node, "wakeup");
3599 if (irq <= 0) {
3600 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__);
3601 return 0;
3602 }
3603
3604 irq_set_status_flags(irq, IRQ_NOAUTOEN);
3605 ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler,
3606 0, "OOB Wake-on-BT", data);
3607 if (ret) {
3608 bt_dev_err(hdev, "%s: IRQ request failed", __func__);
3609 return ret;
3610 }
3611
3612 ret = device_init_wakeup(dev, true);
3613 if (ret) {
3614 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__);
3615 return ret;
3616 }
3617
3618 data->oob_wake_irq = irq;
3619 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq);
3620 return 0;
3621 }
3622 #endif
3623
btusb_check_needs_reset_resume(struct usb_interface * intf)3624 static void btusb_check_needs_reset_resume(struct usb_interface *intf)
3625 {
3626 if (dmi_check_system(btusb_needs_reset_resume_table))
3627 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
3628 }
3629
btusb_wakeup(struct hci_dev * hdev)3630 static bool btusb_wakeup(struct hci_dev *hdev)
3631 {
3632 struct btusb_data *data = hci_get_drvdata(hdev);
3633
3634 return device_may_wakeup(&data->udev->dev);
3635 }
3636
btusb_shutdown_qca(struct hci_dev * hdev)3637 static int btusb_shutdown_qca(struct hci_dev *hdev)
3638 {
3639 struct sk_buff *skb;
3640
3641 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
3642 if (IS_ERR(skb)) {
3643 bt_dev_err(hdev, "HCI reset during shutdown failed");
3644 return PTR_ERR(skb);
3645 }
3646 kfree_skb(skb);
3647
3648 return 0;
3649 }
3650
force_poll_sync_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)3651 static ssize_t force_poll_sync_read(struct file *file, char __user *user_buf,
3652 size_t count, loff_t *ppos)
3653 {
3654 struct btusb_data *data = file->private_data;
3655 char buf[3];
3656
3657 buf[0] = data->poll_sync ? 'Y' : 'N';
3658 buf[1] = '\n';
3659 buf[2] = '\0';
3660 return simple_read_from_buffer(user_buf, count, ppos, buf, 2);
3661 }
3662
force_poll_sync_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)3663 static ssize_t force_poll_sync_write(struct file *file,
3664 const char __user *user_buf,
3665 size_t count, loff_t *ppos)
3666 {
3667 struct btusb_data *data = file->private_data;
3668 bool enable;
3669 int err;
3670
3671 err = kstrtobool_from_user(user_buf, count, &enable);
3672 if (err)
3673 return err;
3674
3675 /* Only allow changes while the adapter is down */
3676 if (test_bit(HCI_UP, &data->hdev->flags))
3677 return -EPERM;
3678
3679 if (data->poll_sync == enable)
3680 return -EALREADY;
3681
3682 data->poll_sync = enable;
3683
3684 return count;
3685 }
3686
3687 static const struct file_operations force_poll_sync_fops = {
3688 .owner = THIS_MODULE,
3689 .open = simple_open,
3690 .read = force_poll_sync_read,
3691 .write = force_poll_sync_write,
3692 .llseek = default_llseek,
3693 };
3694
isoc_alt_show(struct device * dev,struct device_attribute * attr,char * buf)3695 static ssize_t isoc_alt_show(struct device *dev,
3696 struct device_attribute *attr,
3697 char *buf)
3698 {
3699 struct btusb_data *data = dev_get_drvdata(dev);
3700
3701 return sysfs_emit(buf, "%d\n", data->isoc_altsetting);
3702 }
3703
isoc_alt_store(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)3704 static ssize_t isoc_alt_store(struct device *dev,
3705 struct device_attribute *attr,
3706 const char *buf, size_t count)
3707 {
3708 struct btusb_data *data = dev_get_drvdata(dev);
3709 int alt;
3710 int ret;
3711
3712 if (kstrtoint(buf, 10, &alt))
3713 return -EINVAL;
3714
3715 ret = btusb_switch_alt_setting(data->hdev, alt);
3716 return ret < 0 ? ret : count;
3717 }
3718
3719 static DEVICE_ATTR_RW(isoc_alt);
3720
btusb_probe(struct usb_interface * intf,const struct usb_device_id * id)3721 static int btusb_probe(struct usb_interface *intf,
3722 const struct usb_device_id *id)
3723 {
3724 struct usb_endpoint_descriptor *ep_desc;
3725 struct gpio_desc *reset_gpio;
3726 struct btusb_data *data;
3727 struct hci_dev *hdev;
3728 unsigned ifnum_base;
3729 int i, err, priv_size;
3730
3731 BT_DBG("intf %p id %p", intf, id);
3732
3733 if ((id->driver_info & BTUSB_IFNUM_2) &&
3734 (intf->cur_altsetting->desc.bInterfaceNumber != 0) &&
3735 (intf->cur_altsetting->desc.bInterfaceNumber != 2))
3736 return -ENODEV;
3737
3738 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber;
3739
3740 if (!id->driver_info) {
3741 const struct usb_device_id *match;
3742
3743 match = usb_match_id(intf, quirks_table);
3744 if (match)
3745 id = match;
3746 }
3747
3748 if (id->driver_info == BTUSB_IGNORE)
3749 return -ENODEV;
3750
3751 if (id->driver_info & BTUSB_ATH3012) {
3752 struct usb_device *udev = interface_to_usbdev(intf);
3753
3754 /* Old firmware would otherwise let ath3k driver load
3755 * patch and sysconfig files
3756 */
3757 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 &&
3758 !btusb_qca_need_patch(udev))
3759 return -ENODEV;
3760 }
3761
3762 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
3763 if (!data)
3764 return -ENOMEM;
3765
3766 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
3767 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
3768
3769 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
3770 data->intr_ep = ep_desc;
3771 continue;
3772 }
3773
3774 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
3775 data->bulk_tx_ep = ep_desc;
3776 continue;
3777 }
3778
3779 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
3780 data->bulk_rx_ep = ep_desc;
3781 continue;
3782 }
3783 }
3784
3785 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
3786 return -ENODEV;
3787
3788 if (id->driver_info & BTUSB_AMP) {
3789 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
3790 data->cmdreq = 0x2b;
3791 } else {
3792 data->cmdreq_type = USB_TYPE_CLASS;
3793 data->cmdreq = 0x00;
3794 }
3795
3796 data->udev = interface_to_usbdev(intf);
3797 data->intf = intf;
3798
3799 INIT_WORK(&data->work, btusb_work);
3800 INIT_WORK(&data->waker, btusb_waker);
3801 INIT_DELAYED_WORK(&data->rx_work, btusb_rx_work);
3802
3803 skb_queue_head_init(&data->acl_q);
3804
3805 init_usb_anchor(&data->deferred);
3806 init_usb_anchor(&data->tx_anchor);
3807 spin_lock_init(&data->txlock);
3808
3809 init_usb_anchor(&data->intr_anchor);
3810 init_usb_anchor(&data->bulk_anchor);
3811 init_usb_anchor(&data->isoc_anchor);
3812 init_usb_anchor(&data->diag_anchor);
3813 init_usb_anchor(&data->ctrl_anchor);
3814 spin_lock_init(&data->rxlock);
3815
3816 priv_size = 0;
3817
3818 data->recv_event = hci_recv_frame;
3819 data->recv_bulk = btusb_recv_bulk;
3820
3821 if (id->driver_info & BTUSB_INTEL_COMBINED) {
3822 /* Allocate extra space for Intel device */
3823 priv_size += sizeof(struct btintel_data);
3824
3825 /* Override the rx handlers */
3826 data->recv_event = btintel_recv_event;
3827 data->recv_bulk = btusb_recv_bulk_intel;
3828 } else if (id->driver_info & BTUSB_REALTEK) {
3829 /* Allocate extra space for Realtek device */
3830 priv_size += sizeof(struct btrealtek_data);
3831
3832 data->recv_event = btusb_recv_event_realtek;
3833 } else if (id->driver_info & BTUSB_MEDIATEK) {
3834 /* Allocate extra space for Mediatek device */
3835 priv_size += sizeof(struct btmtk_data);
3836 }
3837
3838 data->recv_acl = hci_recv_frame;
3839
3840 hdev = hci_alloc_dev_priv(priv_size);
3841 if (!hdev)
3842 return -ENOMEM;
3843
3844 hdev->bus = HCI_USB;
3845 hci_set_drvdata(hdev, data);
3846
3847 data->hdev = hdev;
3848
3849 SET_HCIDEV_DEV(hdev, &intf->dev);
3850
3851 reset_gpio = gpiod_get_optional(&data->udev->dev, "reset",
3852 GPIOD_OUT_LOW);
3853 if (IS_ERR(reset_gpio)) {
3854 err = PTR_ERR(reset_gpio);
3855 goto out_free_dev;
3856 } else if (reset_gpio) {
3857 data->reset_gpio = reset_gpio;
3858 }
3859
3860 hdev->open = btusb_open;
3861 hdev->close = btusb_close;
3862 hdev->flush = btusb_flush;
3863 hdev->send = btusb_send_frame;
3864 hdev->notify = btusb_notify;
3865 hdev->wakeup = btusb_wakeup;
3866
3867 #ifdef CONFIG_PM
3868 err = btusb_config_oob_wake(hdev);
3869 if (err)
3870 goto out_free_dev;
3871
3872 /* Marvell devices may need a specific chip configuration */
3873 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) {
3874 err = marvell_config_oob_wake(hdev);
3875 if (err)
3876 goto out_free_dev;
3877 }
3878 #endif
3879 if (id->driver_info & BTUSB_CW6622)
3880 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
3881
3882 if (id->driver_info & BTUSB_BCM2045)
3883 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
3884
3885 if (id->driver_info & BTUSB_BCM92035)
3886 hdev->setup = btusb_setup_bcm92035;
3887
3888 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
3889 (id->driver_info & BTUSB_BCM_PATCHRAM)) {
3890 hdev->manufacturer = 15;
3891 hdev->setup = btbcm_setup_patchram;
3892 hdev->set_diag = btusb_bcm_set_diag;
3893 hdev->set_bdaddr = btbcm_set_bdaddr;
3894
3895 /* Broadcom LM_DIAG Interface numbers are hardcoded */
3896 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
3897 }
3898
3899 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
3900 (id->driver_info & BTUSB_BCM_APPLE)) {
3901 hdev->manufacturer = 15;
3902 hdev->setup = btbcm_setup_apple;
3903 hdev->set_diag = btusb_bcm_set_diag;
3904
3905 /* Broadcom LM_DIAG Interface numbers are hardcoded */
3906 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
3907 }
3908
3909 /* Combined Intel Device setup to support multiple setup routine */
3910 if (id->driver_info & BTUSB_INTEL_COMBINED) {
3911 err = btintel_configure_setup(hdev, btusb_driver.name);
3912 if (err)
3913 goto out_free_dev;
3914
3915 /* Transport specific configuration */
3916 hdev->send = btusb_send_frame_intel;
3917 hdev->reset = btusb_intel_reset;
3918
3919 if (id->driver_info & BTUSB_INTEL_NO_WBS_SUPPORT)
3920 btintel_set_flag(hdev, INTEL_ROM_LEGACY_NO_WBS_SUPPORT);
3921
3922 if (id->driver_info & BTUSB_INTEL_BROKEN_INITIAL_NCMD)
3923 btintel_set_flag(hdev, INTEL_BROKEN_INITIAL_NCMD);
3924
3925 if (id->driver_info & BTUSB_INTEL_BROKEN_SHUTDOWN_LED)
3926 btintel_set_flag(hdev, INTEL_BROKEN_SHUTDOWN_LED);
3927 }
3928
3929 if (id->driver_info & BTUSB_MARVELL)
3930 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
3931
3932 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_MTK) &&
3933 (id->driver_info & BTUSB_MEDIATEK)) {
3934 hdev->setup = btusb_mtk_setup;
3935 hdev->shutdown = btusb_mtk_shutdown;
3936 hdev->manufacturer = 70;
3937 hdev->reset = btmtk_reset_sync;
3938 hdev->set_bdaddr = btmtk_set_bdaddr;
3939 hdev->send = btusb_send_frame_mtk;
3940 set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks);
3941 set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
3942 data->recv_acl = btmtk_usb_recv_acl;
3943 data->suspend = btmtk_usb_suspend;
3944 data->resume = btmtk_usb_resume;
3945 data->disconnect = btusb_mtk_disconnect;
3946 }
3947
3948 if (id->driver_info & BTUSB_SWAVE) {
3949 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
3950 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
3951 }
3952
3953 if (id->driver_info & BTUSB_INTEL_BOOT) {
3954 hdev->manufacturer = 2;
3955 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
3956 }
3957
3958 if (id->driver_info & BTUSB_ATH3012) {
3959 data->setup_on_usb = btusb_setup_qca;
3960 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
3961 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3962 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
3963 }
3964
3965 if (id->driver_info & BTUSB_QCA_ROME) {
3966 data->setup_on_usb = btusb_setup_qca;
3967 hdev->shutdown = btusb_shutdown_qca;
3968 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
3969 hdev->reset = btusb_qca_reset;
3970 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3971 btusb_check_needs_reset_resume(intf);
3972 }
3973
3974 if (id->driver_info & BTUSB_QCA_WCN6855) {
3975 data->qca_dump.id_vendor = id->idVendor;
3976 data->qca_dump.id_product = id->idProduct;
3977 data->recv_event = btusb_recv_evt_qca;
3978 data->recv_acl = btusb_recv_acl_qca;
3979 hci_devcd_register(hdev, btusb_coredump_qca, btusb_dump_hdr_qca, NULL);
3980 data->setup_on_usb = btusb_setup_qca;
3981 hdev->shutdown = btusb_shutdown_qca;
3982 hdev->set_bdaddr = btusb_set_bdaddr_wcn6855;
3983 hdev->reset = btusb_qca_reset;
3984 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3985 hci_set_msft_opcode(hdev, 0xFD70);
3986 }
3987
3988 if (id->driver_info & BTUSB_AMP) {
3989 /* AMP controllers do not support SCO packets */
3990 data->isoc = NULL;
3991 } else {
3992 /* Interface orders are hardcoded in the specification */
3993 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1);
3994 data->isoc_ifnum = ifnum_base + 1;
3995 }
3996
3997 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_RTL) &&
3998 (id->driver_info & BTUSB_REALTEK)) {
3999 btrtl_set_driver_name(hdev, btusb_driver.name);
4000 hdev->setup = btusb_setup_realtek;
4001 hdev->shutdown = btrtl_shutdown_realtek;
4002 hdev->reset = btusb_rtl_reset;
4003 hdev->hw_error = btusb_rtl_hw_error;
4004
4005 /* Realtek devices need to set remote wakeup on auto-suspend */
4006 set_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags);
4007 set_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags);
4008 }
4009
4010 if (id->driver_info & BTUSB_ACTIONS_SEMI) {
4011 /* Support is advertised, but not implemented */
4012 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks);
4013 set_bit(HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER, &hdev->quirks);
4014 set_bit(HCI_QUIRK_BROKEN_SET_RPA_TIMEOUT, &hdev->quirks);
4015 set_bit(HCI_QUIRK_BROKEN_EXT_SCAN, &hdev->quirks);
4016 set_bit(HCI_QUIRK_BROKEN_READ_ENC_KEY_SIZE, &hdev->quirks);
4017 set_bit(HCI_QUIRK_BROKEN_EXT_CREATE_CONN, &hdev->quirks);
4018 set_bit(HCI_QUIRK_BROKEN_WRITE_AUTH_PAYLOAD_TIMEOUT, &hdev->quirks);
4019 }
4020
4021 if (!reset)
4022 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
4023
4024 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
4025 if (!disable_scofix)
4026 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
4027 }
4028
4029 if (id->driver_info & BTUSB_BROKEN_ISOC)
4030 data->isoc = NULL;
4031
4032 if (id->driver_info & BTUSB_WIDEBAND_SPEECH)
4033 set_bit(HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED, &hdev->quirks);
4034
4035 if (id->driver_info & BTUSB_INVALID_LE_STATES)
4036 set_bit(HCI_QUIRK_BROKEN_LE_STATES, &hdev->quirks);
4037
4038 if (id->driver_info & BTUSB_DIGIANSWER) {
4039 data->cmdreq_type = USB_TYPE_VENDOR;
4040 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
4041 }
4042
4043 if (id->driver_info & BTUSB_CSR) {
4044 struct usb_device *udev = data->udev;
4045 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
4046
4047 /* Old firmware would otherwise execute USB reset */
4048 if (bcdDevice < 0x117)
4049 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
4050
4051 /* This must be set first in case we disable it for fakes */
4052 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4053
4054 /* Fake CSR devices with broken commands */
4055 if (le16_to_cpu(udev->descriptor.idVendor) == 0x0a12 &&
4056 le16_to_cpu(udev->descriptor.idProduct) == 0x0001)
4057 hdev->setup = btusb_setup_csr;
4058 }
4059
4060 if (id->driver_info & BTUSB_SNIFFER) {
4061 struct usb_device *udev = data->udev;
4062
4063 /* New sniffer firmware has crippled HCI interface */
4064 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
4065 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
4066 }
4067
4068 if (id->driver_info & BTUSB_INTEL_BOOT) {
4069 /* A bug in the bootloader causes that interrupt interface is
4070 * only enabled after receiving SetInterface(0, AltSetting=0).
4071 */
4072 err = usb_set_interface(data->udev, 0, 0);
4073 if (err < 0) {
4074 BT_ERR("failed to set interface 0, alt 0 %d", err);
4075 goto out_free_dev;
4076 }
4077 }
4078
4079 if (data->isoc) {
4080 err = usb_driver_claim_interface(&btusb_driver,
4081 data->isoc, data);
4082 if (err < 0)
4083 goto out_free_dev;
4084
4085 err = device_create_file(&intf->dev, &dev_attr_isoc_alt);
4086 if (err)
4087 goto out_free_dev;
4088 }
4089
4090 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && data->diag) {
4091 if (!usb_driver_claim_interface(&btusb_driver,
4092 data->diag, data))
4093 __set_diag_interface(hdev);
4094 else
4095 data->diag = NULL;
4096 }
4097
4098 if (enable_autosuspend)
4099 usb_enable_autosuspend(data->udev);
4100
4101 data->poll_sync = enable_poll_sync;
4102
4103 err = hci_register_dev(hdev);
4104 if (err < 0)
4105 goto out_free_dev;
4106
4107 usb_set_intfdata(intf, data);
4108
4109 debugfs_create_file("force_poll_sync", 0644, hdev->debugfs, data,
4110 &force_poll_sync_fops);
4111
4112 return 0;
4113
4114 out_free_dev:
4115 if (data->reset_gpio)
4116 gpiod_put(data->reset_gpio);
4117 hci_free_dev(hdev);
4118 return err;
4119 }
4120
btusb_disconnect(struct usb_interface * intf)4121 static void btusb_disconnect(struct usb_interface *intf)
4122 {
4123 struct btusb_data *data = usb_get_intfdata(intf);
4124 struct hci_dev *hdev;
4125
4126 BT_DBG("intf %p", intf);
4127
4128 if (!data)
4129 return;
4130
4131 hdev = data->hdev;
4132 usb_set_intfdata(data->intf, NULL);
4133
4134 if (data->isoc) {
4135 device_remove_file(&intf->dev, &dev_attr_isoc_alt);
4136 usb_set_intfdata(data->isoc, NULL);
4137 }
4138
4139 if (data->diag)
4140 usb_set_intfdata(data->diag, NULL);
4141
4142 if (data->disconnect)
4143 data->disconnect(hdev);
4144
4145 hci_unregister_dev(hdev);
4146
4147 if (intf == data->intf) {
4148 if (data->isoc)
4149 usb_driver_release_interface(&btusb_driver, data->isoc);
4150 if (data->diag)
4151 usb_driver_release_interface(&btusb_driver, data->diag);
4152 } else if (intf == data->isoc) {
4153 if (data->diag)
4154 usb_driver_release_interface(&btusb_driver, data->diag);
4155 usb_driver_release_interface(&btusb_driver, data->intf);
4156 } else if (intf == data->diag) {
4157 usb_driver_release_interface(&btusb_driver, data->intf);
4158 if (data->isoc)
4159 usb_driver_release_interface(&btusb_driver, data->isoc);
4160 }
4161
4162 if (data->oob_wake_irq)
4163 device_init_wakeup(&data->udev->dev, false);
4164
4165 if (data->reset_gpio)
4166 gpiod_put(data->reset_gpio);
4167
4168 hci_free_dev(hdev);
4169 }
4170
4171 #ifdef CONFIG_PM
btusb_suspend(struct usb_interface * intf,pm_message_t message)4172 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
4173 {
4174 struct btusb_data *data = usb_get_intfdata(intf);
4175
4176 BT_DBG("intf %p", intf);
4177
4178 /* Don't auto-suspend if there are connections; external suspend calls
4179 * shall never fail.
4180 */
4181 if (PMSG_IS_AUTO(message) && hci_conn_count(data->hdev))
4182 return -EBUSY;
4183
4184 if (data->suspend_count++)
4185 return 0;
4186
4187 spin_lock_irq(&data->txlock);
4188 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
4189 set_bit(BTUSB_SUSPENDING, &data->flags);
4190 spin_unlock_irq(&data->txlock);
4191 } else {
4192 spin_unlock_irq(&data->txlock);
4193 data->suspend_count--;
4194 return -EBUSY;
4195 }
4196
4197 cancel_work_sync(&data->work);
4198
4199 if (data->suspend)
4200 data->suspend(data->hdev);
4201
4202 btusb_stop_traffic(data);
4203 usb_kill_anchored_urbs(&data->tx_anchor);
4204
4205 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) {
4206 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
4207 enable_irq_wake(data->oob_wake_irq);
4208 enable_irq(data->oob_wake_irq);
4209 }
4210
4211 /* For global suspend, Realtek devices lose the loaded fw
4212 * in them. But for autosuspend, firmware should remain.
4213 * Actually, it depends on whether the usb host sends
4214 * set feature (enable wakeup) or not.
4215 */
4216 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) {
4217 if (PMSG_IS_AUTO(message) &&
4218 device_can_wakeup(&data->udev->dev))
4219 data->udev->do_remote_wakeup = 1;
4220 else if (!PMSG_IS_AUTO(message) &&
4221 !device_may_wakeup(&data->udev->dev)) {
4222 data->udev->do_remote_wakeup = 0;
4223 data->udev->reset_resume = 1;
4224 }
4225 }
4226
4227 return 0;
4228 }
4229
play_deferred(struct btusb_data * data)4230 static void play_deferred(struct btusb_data *data)
4231 {
4232 struct urb *urb;
4233 int err;
4234
4235 while ((urb = usb_get_from_anchor(&data->deferred))) {
4236 usb_anchor_urb(urb, &data->tx_anchor);
4237
4238 err = usb_submit_urb(urb, GFP_ATOMIC);
4239 if (err < 0) {
4240 if (err != -EPERM && err != -ENODEV)
4241 BT_ERR("%s urb %p submission failed (%d)",
4242 data->hdev->name, urb, -err);
4243 kfree(urb->setup_packet);
4244 usb_unanchor_urb(urb);
4245 usb_free_urb(urb);
4246 break;
4247 }
4248
4249 data->tx_in_flight++;
4250 usb_free_urb(urb);
4251 }
4252
4253 /* Cleanup the rest deferred urbs. */
4254 while ((urb = usb_get_from_anchor(&data->deferred))) {
4255 kfree(urb->setup_packet);
4256 usb_free_urb(urb);
4257 }
4258 }
4259
btusb_resume(struct usb_interface * intf)4260 static int btusb_resume(struct usb_interface *intf)
4261 {
4262 struct btusb_data *data = usb_get_intfdata(intf);
4263 struct hci_dev *hdev = data->hdev;
4264 int err = 0;
4265
4266 BT_DBG("intf %p", intf);
4267
4268 if (--data->suspend_count)
4269 return 0;
4270
4271 /* Disable only if not already disabled (keep it balanced) */
4272 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
4273 disable_irq(data->oob_wake_irq);
4274 disable_irq_wake(data->oob_wake_irq);
4275 }
4276
4277 if (!test_bit(HCI_RUNNING, &hdev->flags))
4278 goto done;
4279
4280 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
4281 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
4282 if (err < 0) {
4283 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
4284 goto failed;
4285 }
4286 }
4287
4288 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
4289 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
4290 if (err < 0) {
4291 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
4292 goto failed;
4293 }
4294
4295 btusb_submit_bulk_urb(hdev, GFP_NOIO);
4296 }
4297
4298 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
4299 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
4300 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
4301 else
4302 btusb_submit_isoc_urb(hdev, GFP_NOIO);
4303 }
4304
4305 if (data->resume)
4306 data->resume(hdev);
4307
4308 spin_lock_irq(&data->txlock);
4309 play_deferred(data);
4310 clear_bit(BTUSB_SUSPENDING, &data->flags);
4311 spin_unlock_irq(&data->txlock);
4312 schedule_work(&data->work);
4313
4314 return 0;
4315
4316 failed:
4317 usb_scuttle_anchored_urbs(&data->deferred);
4318 done:
4319 spin_lock_irq(&data->txlock);
4320 clear_bit(BTUSB_SUSPENDING, &data->flags);
4321 spin_unlock_irq(&data->txlock);
4322
4323 return err;
4324 }
4325 #endif
4326
4327 #ifdef CONFIG_DEV_COREDUMP
btusb_coredump(struct device * dev)4328 static void btusb_coredump(struct device *dev)
4329 {
4330 struct btusb_data *data = dev_get_drvdata(dev);
4331 struct hci_dev *hdev = data->hdev;
4332
4333 if (hdev->dump.coredump)
4334 hdev->dump.coredump(hdev);
4335 }
4336 #endif
4337
4338 static struct usb_driver btusb_driver = {
4339 .name = "btusb",
4340 .probe = btusb_probe,
4341 .disconnect = btusb_disconnect,
4342 #ifdef CONFIG_PM
4343 .suspend = btusb_suspend,
4344 .resume = btusb_resume,
4345 #endif
4346 .id_table = btusb_table,
4347 .supports_autosuspend = 1,
4348 .disable_hub_initiated_lpm = 1,
4349
4350 #ifdef CONFIG_DEV_COREDUMP
4351 .driver = {
4352 .coredump = btusb_coredump,
4353 },
4354 #endif
4355 };
4356
4357 module_usb_driver(btusb_driver);
4358
4359 module_param(disable_scofix, bool, 0644);
4360 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
4361
4362 module_param(force_scofix, bool, 0644);
4363 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
4364
4365 module_param(enable_autosuspend, bool, 0644);
4366 MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default");
4367
4368 module_param(reset, bool, 0644);
4369 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
4370
4371 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
4372 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
4373 MODULE_VERSION(VERSION);
4374 MODULE_LICENSE("GPL");
4375