1 // SPDX-License-Identifier: GPL-2.0-or-later
4 * Generic Bluetooth USB driver
6 * Copyright (C) 2005-2008 Marcel Holtmann <marcel@holtmann.org>
10 #include <linux/module.h>
11 #include <linux/usb.h>
12 #include <linux/usb/quirks.h>
13 #include <linux/firmware.h>
14 #include <linux/iopoll.h>
15 #include <linux/of_device.h>
16 #include <linux/of_irq.h>
17 #include <linux/suspend.h>
18 #include <linux/gpio/consumer.h>
19 #include <linux/debugfs.h>
20 #include <asm/unaligned.h>
22 #include <net/bluetooth/bluetooth.h>
23 #include <net/bluetooth/hci_core.h>
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;
38 static struct usb_driver btusb_driver;
40 #define BTUSB_IGNORE BIT(0)
41 #define BTUSB_DIGIANSWER BIT(1)
42 #define BTUSB_CSR BIT(2)
43 #define BTUSB_SNIFFER BIT(3)
44 #define BTUSB_BCM92035 BIT(4)
45 #define BTUSB_BROKEN_ISOC BIT(5)
46 #define BTUSB_WRONG_SCO_MTU BIT(6)
47 #define BTUSB_ATH3012 BIT(7)
48 #define BTUSB_INTEL_COMBINED BIT(8)
49 #define BTUSB_INTEL_BOOT BIT(9)
50 #define BTUSB_BCM_PATCHRAM BIT(10)
51 #define BTUSB_MARVELL BIT(11)
52 #define BTUSB_SWAVE BIT(12)
53 #define BTUSB_AMP BIT(13)
54 #define BTUSB_QCA_ROME BIT(14)
55 #define BTUSB_BCM_APPLE BIT(15)
56 #define BTUSB_REALTEK BIT(16)
57 #define BTUSB_BCM2045 BIT(17)
58 #define BTUSB_IFNUM_2 BIT(18)
59 #define BTUSB_CW6622 BIT(19)
60 #define BTUSB_MEDIATEK BIT(20)
61 #define BTUSB_WIDEBAND_SPEECH BIT(21)
62 #define BTUSB_VALID_LE_STATES BIT(22)
63 #define BTUSB_QCA_WCN6855 BIT(23)
64 #define BTUSB_INTEL_BROKEN_SHUTDOWN_LED BIT(24)
65 #define BTUSB_INTEL_BROKEN_INITIAL_NCMD BIT(25)
66 #define BTUSB_INTEL_NO_WBS_SUPPORT BIT(26)
67 #define BTUSB_ACTIONS_SEMI BIT(27)
69 static const struct usb_device_id btusb_table[] = {
70 /* Generic Bluetooth USB device */
71 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
73 /* Generic Bluetooth AMP device */
74 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP },
76 /* Generic Bluetooth USB interface */
77 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) },
79 /* Apple-specific (Broadcom) devices */
80 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01),
81 .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 },
83 /* MediaTek MT76x0E */
84 { USB_DEVICE(0x0e8d, 0x763f) },
86 /* Broadcom SoftSailing reporting vendor specific */
87 { USB_DEVICE(0x0a5c, 0x21e1) },
89 /* Apple MacBookPro 7,1 */
90 { USB_DEVICE(0x05ac, 0x8213) },
93 { USB_DEVICE(0x05ac, 0x8215) },
95 /* Apple MacBookPro6,2 */
96 { USB_DEVICE(0x05ac, 0x8218) },
98 /* Apple MacBookAir3,1, MacBookAir3,2 */
99 { USB_DEVICE(0x05ac, 0x821b) },
101 /* Apple MacBookAir4,1 */
102 { USB_DEVICE(0x05ac, 0x821f) },
104 /* Apple MacBookPro8,2 */
105 { USB_DEVICE(0x05ac, 0x821a) },
107 /* Apple MacMini5,1 */
108 { USB_DEVICE(0x05ac, 0x8281) },
110 /* AVM BlueFRITZ! USB v2.0 */
111 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE },
113 /* Bluetooth Ultraport Module from IBM */
114 { USB_DEVICE(0x04bf, 0x030a) },
116 /* ALPS Modules with non-standard id */
117 { USB_DEVICE(0x044e, 0x3001) },
118 { USB_DEVICE(0x044e, 0x3002) },
120 /* Ericsson with non-standard id */
121 { USB_DEVICE(0x0bdb, 0x1002) },
123 /* Canyon CN-BTU1 with HID interfaces */
124 { USB_DEVICE(0x0c10, 0x0000) },
126 /* Broadcom BCM20702B0 (Dynex/Insignia) */
127 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM },
129 /* Broadcom BCM43142A0 (Foxconn/Lenovo) */
130 { USB_VENDOR_AND_INTERFACE_INFO(0x105b, 0xff, 0x01, 0x01),
131 .driver_info = BTUSB_BCM_PATCHRAM },
133 /* Broadcom BCM920703 (HTC Vive) */
134 { USB_VENDOR_AND_INTERFACE_INFO(0x0bb4, 0xff, 0x01, 0x01),
135 .driver_info = BTUSB_BCM_PATCHRAM },
137 /* Foxconn - Hon Hai */
138 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01),
139 .driver_info = BTUSB_BCM_PATCHRAM },
141 /* Lite-On Technology - Broadcom based */
142 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01),
143 .driver_info = BTUSB_BCM_PATCHRAM },
145 /* Broadcom devices with vendor specific id */
146 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01),
147 .driver_info = BTUSB_BCM_PATCHRAM },
149 /* ASUSTek Computer - Broadcom based */
150 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01),
151 .driver_info = BTUSB_BCM_PATCHRAM },
153 /* Belkin F8065bf - Broadcom based */
154 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01),
155 .driver_info = BTUSB_BCM_PATCHRAM },
157 /* IMC Networks - Broadcom based */
158 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01),
159 .driver_info = BTUSB_BCM_PATCHRAM },
161 /* Dell Computer - Broadcom based */
162 { USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01),
163 .driver_info = BTUSB_BCM_PATCHRAM },
165 /* Toshiba Corp - Broadcom based */
166 { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01),
167 .driver_info = BTUSB_BCM_PATCHRAM },
169 /* Intel Bluetooth USB Bootloader (RAM module) */
170 { USB_DEVICE(0x8087, 0x0a5a),
171 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
173 { } /* Terminating entry */
176 MODULE_DEVICE_TABLE(usb, btusb_table);
178 static const struct usb_device_id blacklist_table[] = {
179 /* CSR BlueCore devices */
180 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
182 /* Broadcom BCM2033 without firmware */
183 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
185 /* Broadcom BCM2045 devices */
186 { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 },
188 /* Atheros 3011 with sflash firmware */
189 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
190 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
191 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE },
192 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
193 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
194 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
195 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
197 /* Atheros AR9285 Malbec with sflash firmware */
198 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
200 /* Atheros 3012 with sflash firmware */
201 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
202 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
203 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
204 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
205 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
206 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
207 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
208 { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 },
209 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
210 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
211 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
212 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
213 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
214 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
215 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
216 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
217 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
218 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
219 { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 },
220 { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 },
221 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
222 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
223 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
224 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
225 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
226 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
227 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
228 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
229 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
230 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
231 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
232 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
233 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
234 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 },
235 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
236 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
237 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
238 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
239 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
240 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
241 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
242 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 },
243 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
244 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
245 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
246 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
247 { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 },
248 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
249 { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 },
250 { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 },
252 /* Atheros AR5BBU12 with sflash firmware */
253 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
255 /* Atheros AR5BBU12 with sflash firmware */
256 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
257 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
259 /* QCA ROME chipset */
260 { USB_DEVICE(0x0cf3, 0x535b), .driver_info = BTUSB_QCA_ROME |
261 BTUSB_WIDEBAND_SPEECH },
262 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME |
263 BTUSB_WIDEBAND_SPEECH },
264 { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME |
265 BTUSB_WIDEBAND_SPEECH },
266 { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME |
267 BTUSB_WIDEBAND_SPEECH },
268 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME |
269 BTUSB_WIDEBAND_SPEECH },
270 { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME |
271 BTUSB_WIDEBAND_SPEECH },
272 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME |
273 BTUSB_WIDEBAND_SPEECH },
274 { USB_DEVICE(0x0cf3, 0xe500), .driver_info = BTUSB_QCA_ROME |
275 BTUSB_WIDEBAND_SPEECH },
276 { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME |
277 BTUSB_WIDEBAND_SPEECH },
278 { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME |
279 BTUSB_WIDEBAND_SPEECH },
280 { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME |
281 BTUSB_WIDEBAND_SPEECH },
282 { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME |
283 BTUSB_WIDEBAND_SPEECH },
284 { USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME |
285 BTUSB_WIDEBAND_SPEECH },
286 { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME |
287 BTUSB_WIDEBAND_SPEECH },
288 { USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME |
289 BTUSB_WIDEBAND_SPEECH },
290 { USB_DEVICE(0x04ca, 0x3021), .driver_info = BTUSB_QCA_ROME |
291 BTUSB_WIDEBAND_SPEECH },
292 { USB_DEVICE(0x13d3, 0x3491), .driver_info = BTUSB_QCA_ROME |
293 BTUSB_WIDEBAND_SPEECH },
294 { USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME |
295 BTUSB_WIDEBAND_SPEECH },
296 { USB_DEVICE(0x13d3, 0x3501), .driver_info = BTUSB_QCA_ROME |
297 BTUSB_WIDEBAND_SPEECH },
299 /* QCA WCN6855 chipset */
300 { USB_DEVICE(0x0cf3, 0xe600), .driver_info = BTUSB_QCA_WCN6855 |
301 BTUSB_WIDEBAND_SPEECH |
302 BTUSB_VALID_LE_STATES },
303 { USB_DEVICE(0x0489, 0xe0cc), .driver_info = BTUSB_QCA_WCN6855 |
304 BTUSB_WIDEBAND_SPEECH |
305 BTUSB_VALID_LE_STATES },
306 { USB_DEVICE(0x0489, 0xe0d6), .driver_info = BTUSB_QCA_WCN6855 |
307 BTUSB_WIDEBAND_SPEECH |
308 BTUSB_VALID_LE_STATES },
309 { USB_DEVICE(0x0489, 0xe0e3), .driver_info = BTUSB_QCA_WCN6855 |
310 BTUSB_WIDEBAND_SPEECH |
311 BTUSB_VALID_LE_STATES },
312 { USB_DEVICE(0x10ab, 0x9309), .driver_info = BTUSB_QCA_WCN6855 |
313 BTUSB_WIDEBAND_SPEECH |
314 BTUSB_VALID_LE_STATES },
315 { USB_DEVICE(0x10ab, 0x9409), .driver_info = BTUSB_QCA_WCN6855 |
316 BTUSB_WIDEBAND_SPEECH |
317 BTUSB_VALID_LE_STATES },
318 { USB_DEVICE(0x0489, 0xe0d0), .driver_info = BTUSB_QCA_WCN6855 |
319 BTUSB_WIDEBAND_SPEECH |
320 BTUSB_VALID_LE_STATES },
321 { USB_DEVICE(0x10ab, 0x9108), .driver_info = BTUSB_QCA_WCN6855 |
322 BTUSB_WIDEBAND_SPEECH |
323 BTUSB_VALID_LE_STATES },
324 { USB_DEVICE(0x10ab, 0x9109), .driver_info = BTUSB_QCA_WCN6855 |
325 BTUSB_WIDEBAND_SPEECH |
326 BTUSB_VALID_LE_STATES },
327 { USB_DEVICE(0x10ab, 0x9208), .driver_info = BTUSB_QCA_WCN6855 |
328 BTUSB_WIDEBAND_SPEECH |
329 BTUSB_VALID_LE_STATES },
330 { USB_DEVICE(0x10ab, 0x9209), .driver_info = BTUSB_QCA_WCN6855 |
331 BTUSB_WIDEBAND_SPEECH |
332 BTUSB_VALID_LE_STATES },
333 { USB_DEVICE(0x10ab, 0x9308), .driver_info = BTUSB_QCA_WCN6855 |
334 BTUSB_WIDEBAND_SPEECH |
335 BTUSB_VALID_LE_STATES },
336 { USB_DEVICE(0x10ab, 0x9408), .driver_info = BTUSB_QCA_WCN6855 |
337 BTUSB_WIDEBAND_SPEECH |
338 BTUSB_VALID_LE_STATES },
339 { USB_DEVICE(0x10ab, 0x9508), .driver_info = BTUSB_QCA_WCN6855 |
340 BTUSB_WIDEBAND_SPEECH |
341 BTUSB_VALID_LE_STATES },
342 { USB_DEVICE(0x10ab, 0x9509), .driver_info = BTUSB_QCA_WCN6855 |
343 BTUSB_WIDEBAND_SPEECH |
344 BTUSB_VALID_LE_STATES },
345 { USB_DEVICE(0x10ab, 0x9608), .driver_info = BTUSB_QCA_WCN6855 |
346 BTUSB_WIDEBAND_SPEECH |
347 BTUSB_VALID_LE_STATES },
348 { USB_DEVICE(0x10ab, 0x9609), .driver_info = BTUSB_QCA_WCN6855 |
349 BTUSB_WIDEBAND_SPEECH |
350 BTUSB_VALID_LE_STATES },
351 { USB_DEVICE(0x10ab, 0x9f09), .driver_info = BTUSB_QCA_WCN6855 |
352 BTUSB_WIDEBAND_SPEECH |
353 BTUSB_VALID_LE_STATES },
354 { USB_DEVICE(0x04ca, 0x3022), .driver_info = BTUSB_QCA_WCN6855 |
355 BTUSB_WIDEBAND_SPEECH |
356 BTUSB_VALID_LE_STATES },
357 { USB_DEVICE(0x0489, 0xe0c7), .driver_info = BTUSB_QCA_WCN6855 |
358 BTUSB_WIDEBAND_SPEECH |
359 BTUSB_VALID_LE_STATES },
360 { USB_DEVICE(0x0489, 0xe0c9), .driver_info = BTUSB_QCA_WCN6855 |
361 BTUSB_WIDEBAND_SPEECH |
362 BTUSB_VALID_LE_STATES },
363 { USB_DEVICE(0x0489, 0xe0ca), .driver_info = BTUSB_QCA_WCN6855 |
364 BTUSB_WIDEBAND_SPEECH |
365 BTUSB_VALID_LE_STATES },
366 { USB_DEVICE(0x0489, 0xe0cb), .driver_info = BTUSB_QCA_WCN6855 |
367 BTUSB_WIDEBAND_SPEECH |
368 BTUSB_VALID_LE_STATES },
369 { USB_DEVICE(0x0489, 0xe0ce), .driver_info = BTUSB_QCA_WCN6855 |
370 BTUSB_WIDEBAND_SPEECH |
371 BTUSB_VALID_LE_STATES },
372 { USB_DEVICE(0x0489, 0xe0de), .driver_info = BTUSB_QCA_WCN6855 |
373 BTUSB_WIDEBAND_SPEECH |
374 BTUSB_VALID_LE_STATES },
375 { USB_DEVICE(0x0489, 0xe0df), .driver_info = BTUSB_QCA_WCN6855 |
376 BTUSB_WIDEBAND_SPEECH |
377 BTUSB_VALID_LE_STATES },
378 { USB_DEVICE(0x0489, 0xe0e1), .driver_info = BTUSB_QCA_WCN6855 |
379 BTUSB_WIDEBAND_SPEECH |
380 BTUSB_VALID_LE_STATES },
381 { USB_DEVICE(0x0489, 0xe0ea), .driver_info = BTUSB_QCA_WCN6855 |
382 BTUSB_WIDEBAND_SPEECH |
383 BTUSB_VALID_LE_STATES },
384 { USB_DEVICE(0x0489, 0xe0ec), .driver_info = BTUSB_QCA_WCN6855 |
385 BTUSB_WIDEBAND_SPEECH |
386 BTUSB_VALID_LE_STATES },
387 { USB_DEVICE(0x04ca, 0x3023), .driver_info = BTUSB_QCA_WCN6855 |
388 BTUSB_WIDEBAND_SPEECH |
389 BTUSB_VALID_LE_STATES },
390 { USB_DEVICE(0x04ca, 0x3024), .driver_info = BTUSB_QCA_WCN6855 |
391 BTUSB_WIDEBAND_SPEECH |
392 BTUSB_VALID_LE_STATES },
393 { USB_DEVICE(0x04ca, 0x3a22), .driver_info = BTUSB_QCA_WCN6855 |
394 BTUSB_WIDEBAND_SPEECH |
395 BTUSB_VALID_LE_STATES },
396 { USB_DEVICE(0x04ca, 0x3a24), .driver_info = BTUSB_QCA_WCN6855 |
397 BTUSB_WIDEBAND_SPEECH |
398 BTUSB_VALID_LE_STATES },
399 { USB_DEVICE(0x04ca, 0x3a26), .driver_info = BTUSB_QCA_WCN6855 |
400 BTUSB_WIDEBAND_SPEECH |
401 BTUSB_VALID_LE_STATES },
402 { USB_DEVICE(0x04ca, 0x3a27), .driver_info = BTUSB_QCA_WCN6855 |
403 BTUSB_WIDEBAND_SPEECH |
404 BTUSB_VALID_LE_STATES },
406 /* QCA WCN785x chipset */
407 { USB_DEVICE(0x0cf3, 0xe700), .driver_info = BTUSB_QCA_WCN6855 |
408 BTUSB_WIDEBAND_SPEECH |
409 BTUSB_VALID_LE_STATES },
411 /* Broadcom BCM2035 */
412 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
413 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
414 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
416 /* Broadcom BCM2045 */
417 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
418 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
420 /* IBM/Lenovo ThinkPad with Broadcom chip */
421 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
422 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
424 /* HP laptop with Broadcom chip */
425 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
427 /* Dell laptop with Broadcom chip */
428 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
430 /* Dell Wireless 370 and 410 devices */
431 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
432 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
434 /* Belkin F8T012 and F8T013 devices */
435 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
436 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
438 /* Asus WL-BTD202 device */
439 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
441 /* Kensington Bluetooth USB adapter */
442 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
444 /* RTX Telecom based adapters with buggy SCO support */
445 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
446 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
448 /* CONWISE Technology based adapters with buggy SCO support */
449 { USB_DEVICE(0x0e5e, 0x6622),
450 .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622},
452 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
453 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE },
455 /* Digianswer devices */
456 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
457 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
459 /* CSR BlueCore Bluetooth Sniffer */
460 { USB_DEVICE(0x0a12, 0x0002),
461 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
463 /* Frontline ComProbe Bluetooth Sniffer */
464 { USB_DEVICE(0x16d3, 0x0002),
465 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
467 /* Marvell Bluetooth devices */
468 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
469 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
470 { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL },
472 /* Intel Bluetooth devices */
473 { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_COMBINED },
474 { USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_COMBINED },
475 { USB_DEVICE(0x8087, 0x0029), .driver_info = BTUSB_INTEL_COMBINED },
476 { USB_DEVICE(0x8087, 0x0032), .driver_info = BTUSB_INTEL_COMBINED },
477 { USB_DEVICE(0x8087, 0x0033), .driver_info = BTUSB_INTEL_COMBINED },
478 { USB_DEVICE(0x8087, 0x0035), .driver_info = BTUSB_INTEL_COMBINED },
479 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
480 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL_COMBINED |
481 BTUSB_INTEL_NO_WBS_SUPPORT |
482 BTUSB_INTEL_BROKEN_INITIAL_NCMD |
483 BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
484 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL_COMBINED |
485 BTUSB_INTEL_NO_WBS_SUPPORT |
486 BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
487 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_COMBINED },
488 { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL_COMBINED |
489 BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
490 { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_COMBINED },
492 /* Other Intel Bluetooth devices */
493 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
494 .driver_info = BTUSB_IGNORE },
496 /* Realtek 8821CE Bluetooth devices */
497 { USB_DEVICE(0x13d3, 0x3529), .driver_info = BTUSB_REALTEK |
498 BTUSB_WIDEBAND_SPEECH },
500 /* Realtek 8822CE Bluetooth devices */
501 { USB_DEVICE(0x0bda, 0xb00c), .driver_info = BTUSB_REALTEK |
502 BTUSB_WIDEBAND_SPEECH },
503 { USB_DEVICE(0x0bda, 0xc822), .driver_info = BTUSB_REALTEK |
504 BTUSB_WIDEBAND_SPEECH },
506 /* Realtek 8822CU Bluetooth devices */
507 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK |
508 BTUSB_WIDEBAND_SPEECH },
510 /* Realtek 8852AE Bluetooth devices */
511 { USB_DEVICE(0x0bda, 0x2852), .driver_info = BTUSB_REALTEK |
512 BTUSB_WIDEBAND_SPEECH },
513 { USB_DEVICE(0x0bda, 0xc852), .driver_info = BTUSB_REALTEK |
514 BTUSB_WIDEBAND_SPEECH },
515 { USB_DEVICE(0x0bda, 0x385a), .driver_info = BTUSB_REALTEK |
516 BTUSB_WIDEBAND_SPEECH },
517 { USB_DEVICE(0x0bda, 0x4852), .driver_info = BTUSB_REALTEK |
518 BTUSB_WIDEBAND_SPEECH },
519 { USB_DEVICE(0x04c5, 0x165c), .driver_info = BTUSB_REALTEK |
520 BTUSB_WIDEBAND_SPEECH },
521 { USB_DEVICE(0x04ca, 0x4006), .driver_info = BTUSB_REALTEK |
522 BTUSB_WIDEBAND_SPEECH },
523 { USB_DEVICE(0x0cb8, 0xc549), .driver_info = BTUSB_REALTEK |
524 BTUSB_WIDEBAND_SPEECH },
526 /* Realtek 8852CE Bluetooth devices */
527 { USB_DEVICE(0x04ca, 0x4007), .driver_info = BTUSB_REALTEK |
528 BTUSB_WIDEBAND_SPEECH },
529 { USB_DEVICE(0x04c5, 0x1675), .driver_info = BTUSB_REALTEK |
530 BTUSB_WIDEBAND_SPEECH },
531 { USB_DEVICE(0x0cb8, 0xc558), .driver_info = BTUSB_REALTEK |
532 BTUSB_WIDEBAND_SPEECH },
533 { USB_DEVICE(0x13d3, 0x3587), .driver_info = BTUSB_REALTEK |
534 BTUSB_WIDEBAND_SPEECH },
535 { USB_DEVICE(0x13d3, 0x3586), .driver_info = BTUSB_REALTEK |
536 BTUSB_WIDEBAND_SPEECH },
537 { USB_DEVICE(0x13d3, 0x3592), .driver_info = BTUSB_REALTEK |
538 BTUSB_WIDEBAND_SPEECH },
540 /* Realtek 8852BE Bluetooth devices */
541 { USB_DEVICE(0x0cb8, 0xc559), .driver_info = BTUSB_REALTEK |
542 BTUSB_WIDEBAND_SPEECH },
543 { USB_DEVICE(0x0bda, 0x887b), .driver_info = BTUSB_REALTEK |
544 BTUSB_WIDEBAND_SPEECH },
545 { USB_DEVICE(0x13d3, 0x3571), .driver_info = BTUSB_REALTEK |
546 BTUSB_WIDEBAND_SPEECH },
548 /* Realtek Bluetooth devices */
549 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
550 .driver_info = BTUSB_REALTEK },
552 /* MediaTek Bluetooth devices */
553 { USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01),
554 .driver_info = BTUSB_MEDIATEK |
555 BTUSB_WIDEBAND_SPEECH |
556 BTUSB_VALID_LE_STATES },
558 /* Additional MediaTek MT7615E Bluetooth devices */
559 { USB_DEVICE(0x13d3, 0x3560), .driver_info = BTUSB_MEDIATEK},
561 /* Additional MediaTek MT7663 Bluetooth devices */
562 { USB_DEVICE(0x043e, 0x310c), .driver_info = BTUSB_MEDIATEK |
563 BTUSB_WIDEBAND_SPEECH |
564 BTUSB_VALID_LE_STATES },
565 { USB_DEVICE(0x04ca, 0x3801), .driver_info = BTUSB_MEDIATEK |
566 BTUSB_WIDEBAND_SPEECH |
567 BTUSB_VALID_LE_STATES },
569 /* Additional MediaTek MT7668 Bluetooth devices */
570 { USB_DEVICE(0x043e, 0x3109), .driver_info = BTUSB_MEDIATEK |
571 BTUSB_WIDEBAND_SPEECH |
572 BTUSB_VALID_LE_STATES },
574 /* Additional MediaTek MT7921 Bluetooth devices */
575 { USB_DEVICE(0x0489, 0xe0c8), .driver_info = BTUSB_MEDIATEK |
576 BTUSB_WIDEBAND_SPEECH |
577 BTUSB_VALID_LE_STATES },
578 { USB_DEVICE(0x0489, 0xe0e0), .driver_info = BTUSB_MEDIATEK |
579 BTUSB_WIDEBAND_SPEECH |
580 BTUSB_VALID_LE_STATES },
581 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK |
582 BTUSB_WIDEBAND_SPEECH |
583 BTUSB_VALID_LE_STATES },
584 { USB_DEVICE(0x04ca, 0x3802), .driver_info = BTUSB_MEDIATEK |
585 BTUSB_WIDEBAND_SPEECH |
586 BTUSB_VALID_LE_STATES },
587 { USB_DEVICE(0x13d3, 0x3563), .driver_info = BTUSB_MEDIATEK |
588 BTUSB_WIDEBAND_SPEECH |
589 BTUSB_VALID_LE_STATES },
590 { USB_DEVICE(0x13d3, 0x3564), .driver_info = BTUSB_MEDIATEK |
591 BTUSB_WIDEBAND_SPEECH |
592 BTUSB_VALID_LE_STATES },
593 { USB_DEVICE(0x13d3, 0x3567), .driver_info = BTUSB_MEDIATEK |
594 BTUSB_WIDEBAND_SPEECH |
595 BTUSB_VALID_LE_STATES },
596 { USB_DEVICE(0x13d3, 0x3578), .driver_info = BTUSB_MEDIATEK |
597 BTUSB_WIDEBAND_SPEECH |
598 BTUSB_VALID_LE_STATES },
599 { USB_DEVICE(0x13d3, 0x3583), .driver_info = BTUSB_MEDIATEK |
600 BTUSB_WIDEBAND_SPEECH |
601 BTUSB_VALID_LE_STATES },
602 { USB_DEVICE(0x0489, 0xe0cd), .driver_info = BTUSB_MEDIATEK |
603 BTUSB_WIDEBAND_SPEECH |
604 BTUSB_VALID_LE_STATES },
605 { USB_DEVICE(0x0e8d, 0x0608), .driver_info = BTUSB_MEDIATEK |
606 BTUSB_WIDEBAND_SPEECH |
607 BTUSB_VALID_LE_STATES },
609 /* MediaTek MT7922A Bluetooth devices */
610 { USB_DEVICE(0x0489, 0xe0d8), .driver_info = BTUSB_MEDIATEK |
611 BTUSB_WIDEBAND_SPEECH |
612 BTUSB_VALID_LE_STATES },
613 { USB_DEVICE(0x0489, 0xe0d9), .driver_info = BTUSB_MEDIATEK |
614 BTUSB_WIDEBAND_SPEECH |
615 BTUSB_VALID_LE_STATES },
616 { USB_DEVICE(0x0489, 0xe0f5), .driver_info = BTUSB_MEDIATEK |
617 BTUSB_WIDEBAND_SPEECH |
618 BTUSB_VALID_LE_STATES },
619 { USB_DEVICE(0x13d3, 0x3568), .driver_info = BTUSB_MEDIATEK |
620 BTUSB_WIDEBAND_SPEECH |
621 BTUSB_VALID_LE_STATES },
622 { USB_DEVICE(0x0489, 0xe0e2), .driver_info = BTUSB_MEDIATEK |
623 BTUSB_WIDEBAND_SPEECH |
624 BTUSB_VALID_LE_STATES },
625 { USB_DEVICE(0x0489, 0xe0e4), .driver_info = BTUSB_MEDIATEK |
626 BTUSB_WIDEBAND_SPEECH |
627 BTUSB_VALID_LE_STATES },
628 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK |
629 BTUSB_WIDEBAND_SPEECH |
630 BTUSB_VALID_LE_STATES },
632 /* Additional Realtek 8723AE Bluetooth devices */
633 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
634 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
636 /* Additional Realtek 8723BE Bluetooth devices */
637 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
638 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
639 { USB_DEVICE(0x04f2, 0xb49f), .driver_info = BTUSB_REALTEK },
640 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
641 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
642 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
643 { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK },
645 /* Additional Realtek 8723BU Bluetooth devices */
646 { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK },
648 /* Additional Realtek 8723DE Bluetooth devices */
649 { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK },
650 { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK },
652 /* Additional Realtek 8761BUV Bluetooth devices */
653 { USB_DEVICE(0x2357, 0x0604), .driver_info = BTUSB_REALTEK |
654 BTUSB_WIDEBAND_SPEECH },
655 { USB_DEVICE(0x0b05, 0x190e), .driver_info = BTUSB_REALTEK |
656 BTUSB_WIDEBAND_SPEECH },
657 { USB_DEVICE(0x2550, 0x8761), .driver_info = BTUSB_REALTEK |
658 BTUSB_WIDEBAND_SPEECH },
659 { USB_DEVICE(0x0bda, 0x8771), .driver_info = BTUSB_REALTEK |
660 BTUSB_WIDEBAND_SPEECH },
661 { USB_DEVICE(0x6655, 0x8771), .driver_info = BTUSB_REALTEK |
662 BTUSB_WIDEBAND_SPEECH },
663 { USB_DEVICE(0x7392, 0xc611), .driver_info = BTUSB_REALTEK |
664 BTUSB_WIDEBAND_SPEECH },
665 { USB_DEVICE(0x2b89, 0x8761), .driver_info = BTUSB_REALTEK |
666 BTUSB_WIDEBAND_SPEECH },
668 /* Additional Realtek 8821AE Bluetooth devices */
669 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
670 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
671 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
672 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
673 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
675 /* Additional Realtek 8822BE Bluetooth devices */
676 { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK },
677 { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK },
679 /* Additional Realtek 8822CE Bluetooth devices */
680 { USB_DEVICE(0x04ca, 0x4005), .driver_info = BTUSB_REALTEK |
681 BTUSB_WIDEBAND_SPEECH },
682 { USB_DEVICE(0x04c5, 0x161f), .driver_info = BTUSB_REALTEK |
683 BTUSB_WIDEBAND_SPEECH },
684 { USB_DEVICE(0x0b05, 0x18ef), .driver_info = BTUSB_REALTEK |
685 BTUSB_WIDEBAND_SPEECH },
686 { USB_DEVICE(0x13d3, 0x3548), .driver_info = BTUSB_REALTEK |
687 BTUSB_WIDEBAND_SPEECH },
688 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK |
689 BTUSB_WIDEBAND_SPEECH },
690 { USB_DEVICE(0x13d3, 0x3553), .driver_info = BTUSB_REALTEK |
691 BTUSB_WIDEBAND_SPEECH },
692 { USB_DEVICE(0x13d3, 0x3555), .driver_info = BTUSB_REALTEK |
693 BTUSB_WIDEBAND_SPEECH },
694 { USB_DEVICE(0x2ff8, 0x3051), .driver_info = BTUSB_REALTEK |
695 BTUSB_WIDEBAND_SPEECH },
696 { USB_DEVICE(0x1358, 0xc123), .driver_info = BTUSB_REALTEK |
697 BTUSB_WIDEBAND_SPEECH },
698 { USB_DEVICE(0x0bda, 0xc123), .driver_info = BTUSB_REALTEK |
699 BTUSB_WIDEBAND_SPEECH },
700 { USB_DEVICE(0x0cb5, 0xc547), .driver_info = BTUSB_REALTEK |
701 BTUSB_WIDEBAND_SPEECH },
703 /* Actions Semiconductor ATS2851 based devices */
704 { USB_DEVICE(0x10d7, 0xb012), .driver_info = BTUSB_ACTIONS_SEMI },
706 /* Silicon Wave based devices */
707 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE },
709 { } /* Terminating entry */
712 /* The Bluetooth USB module build into some devices needs to be reset on resume,
713 * this is a problem with the platform (likely shutting off all power) not with
714 * the module itself. So we use a DMI list to match known broken platforms.
716 static const struct dmi_system_id btusb_needs_reset_resume_table[] = {
718 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */
720 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
721 DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"),
725 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */
727 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
728 DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"),
732 /* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */
734 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
735 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"),
741 struct qca_dump_info {
742 /* fields for dump collection */
751 #define BTUSB_MAX_ISOC_FRAMES 10
753 #define BTUSB_INTR_RUNNING 0
754 #define BTUSB_BULK_RUNNING 1
755 #define BTUSB_ISOC_RUNNING 2
756 #define BTUSB_SUSPENDING 3
757 #define BTUSB_DID_ISO_RESUME 4
758 #define BTUSB_BOOTLOADER 5
759 #define BTUSB_DOWNLOADING 6
760 #define BTUSB_FIRMWARE_LOADED 7
761 #define BTUSB_FIRMWARE_FAILED 8
762 #define BTUSB_BOOTING 9
763 #define BTUSB_DIAG_RUNNING 10
764 #define BTUSB_OOB_WAKE_ENABLED 11
765 #define BTUSB_HW_RESET_ACTIVE 12
766 #define BTUSB_TX_WAIT_VND_EVT 13
767 #define BTUSB_WAKEUP_AUTOSUSPEND 14
768 #define BTUSB_USE_ALT3_FOR_WBS 15
769 #define BTUSB_ALT6_CONTINUOUS_TX 16
770 #define BTUSB_HW_SSR_ACTIVE 17
773 struct hci_dev *hdev;
774 struct usb_device *udev;
775 struct usb_interface *intf;
776 struct usb_interface *isoc;
777 struct usb_interface *diag;
784 struct work_struct work;
785 struct work_struct waker;
786 struct delayed_work rx_work;
788 struct sk_buff_head acl_q;
790 struct usb_anchor deferred;
791 struct usb_anchor tx_anchor;
795 struct usb_anchor intr_anchor;
796 struct usb_anchor bulk_anchor;
797 struct usb_anchor isoc_anchor;
798 struct usb_anchor diag_anchor;
799 struct usb_anchor ctrl_anchor;
802 struct sk_buff *evt_skb;
803 struct sk_buff *acl_skb;
804 struct sk_buff *sco_skb;
806 struct usb_endpoint_descriptor *intr_ep;
807 struct usb_endpoint_descriptor *bulk_tx_ep;
808 struct usb_endpoint_descriptor *bulk_rx_ep;
809 struct usb_endpoint_descriptor *isoc_tx_ep;
810 struct usb_endpoint_descriptor *isoc_rx_ep;
811 struct usb_endpoint_descriptor *diag_tx_ep;
812 struct usb_endpoint_descriptor *diag_rx_ep;
814 struct gpio_desc *reset_gpio;
819 unsigned int sco_num;
820 unsigned int air_mode;
821 bool usb_alt6_packet_flow;
825 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
826 int (*recv_acl)(struct hci_dev *hdev, struct sk_buff *skb);
827 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
829 int (*setup_on_usb)(struct hci_dev *hdev);
831 int oob_wake_irq; /* irq for out-of-band wake-on-bt */
832 unsigned cmd_timeout_cnt;
834 struct qca_dump_info qca_dump;
837 static void btusb_reset(struct hci_dev *hdev)
839 struct btusb_data *data;
847 data = hci_get_drvdata(hdev);
848 /* This is not an unbalanced PM reference since the device will reset */
849 err = usb_autopm_get_interface(data->intf);
851 bt_dev_err(hdev, "Failed usb_autopm_get_interface: %d", err);
855 bt_dev_err(hdev, "Resetting usb device.");
856 usb_queue_reset_device(data->intf);
859 static void btusb_intel_cmd_timeout(struct hci_dev *hdev)
861 struct btusb_data *data = hci_get_drvdata(hdev);
862 struct gpio_desc *reset_gpio = data->reset_gpio;
863 struct btintel_data *intel_data = hci_get_priv(hdev);
865 if (++data->cmd_timeout_cnt < 5)
868 if (intel_data->acpi_reset_method) {
869 if (test_and_set_bit(INTEL_ACPI_RESET_ACTIVE, intel_data->flags)) {
870 bt_dev_err(hdev, "acpi: last reset failed ? Not resetting again");
874 bt_dev_err(hdev, "Initiating acpi reset method");
875 /* If ACPI reset method fails, lets try with legacy GPIO
878 if (!intel_data->acpi_reset_method(hdev)) {
889 * Toggle the hard reset line if the platform provides one. The reset
890 * is going to yank the device off the USB and then replug. So doing
891 * once is enough. The cleanup is handled correctly on the way out
892 * (standard USB disconnect), and the new device is detected cleanly
893 * and bound to the driver again like it should be.
895 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
896 bt_dev_err(hdev, "last reset failed? Not resetting again");
900 bt_dev_err(hdev, "Initiating HW reset via gpio");
901 gpiod_set_value_cansleep(reset_gpio, 1);
903 gpiod_set_value_cansleep(reset_gpio, 0);
906 #define RTK_DEVCOREDUMP_CODE_MEMDUMP 0x01
907 #define RTK_DEVCOREDUMP_CODE_HW_ERR 0x02
908 #define RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT 0x03
910 #define RTK_SUB_EVENT_CODE_COREDUMP 0x34
912 struct rtk_dev_coredump_hdr {
918 static inline void btusb_rtl_alloc_devcoredump(struct hci_dev *hdev,
919 struct rtk_dev_coredump_hdr *hdr, u8 *buf, u32 len)
923 skb = alloc_skb(len + sizeof(*hdr), GFP_ATOMIC);
927 skb_put_data(skb, hdr, sizeof(*hdr));
929 skb_put_data(skb, buf, len);
931 if (!hci_devcd_init(hdev, skb->len)) {
932 hci_devcd_append(hdev, skb);
933 hci_devcd_complete(hdev);
935 bt_dev_err(hdev, "RTL: Failed to generate devcoredump");
940 static void btusb_rtl_cmd_timeout(struct hci_dev *hdev)
942 struct btusb_data *data = hci_get_drvdata(hdev);
943 struct gpio_desc *reset_gpio = data->reset_gpio;
944 struct rtk_dev_coredump_hdr hdr = {
945 .type = RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT,
948 btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0);
950 if (++data->cmd_timeout_cnt < 5)
958 /* Toggle the hard reset line. The Realtek device is going to
959 * yank itself off the USB and then replug. The cleanup is handled
960 * correctly on the way out (standard USB disconnect), and the new
961 * device is detected cleanly and bound to the driver again like
964 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
965 bt_dev_err(hdev, "last reset failed? Not resetting again");
969 bt_dev_err(hdev, "Reset Realtek device via gpio");
970 gpiod_set_value_cansleep(reset_gpio, 1);
972 gpiod_set_value_cansleep(reset_gpio, 0);
975 static void btusb_rtl_hw_error(struct hci_dev *hdev, u8 code)
977 struct rtk_dev_coredump_hdr hdr = {
978 .type = RTK_DEVCOREDUMP_CODE_HW_ERR,
982 bt_dev_err(hdev, "RTL: hw err, trigger devcoredump (%d)", code);
984 btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0);
987 static void btusb_qca_cmd_timeout(struct hci_dev *hdev)
989 struct btusb_data *data = hci_get_drvdata(hdev);
990 struct gpio_desc *reset_gpio = data->reset_gpio;
992 if (test_bit(BTUSB_HW_SSR_ACTIVE, &data->flags)) {
993 bt_dev_info(hdev, "Ramdump in progress, defer cmd_timeout");
997 if (++data->cmd_timeout_cnt < 5)
1001 bt_dev_err(hdev, "Reset qca device via bt_en gpio");
1003 /* Toggle the hard reset line. The qca bt device is going to
1004 * yank itself off the USB and then replug. The cleanup is handled
1005 * correctly on the way out (standard USB disconnect), and the new
1006 * device is detected cleanly and bound to the driver again like
1009 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
1010 bt_dev_err(hdev, "last reset failed? Not resetting again");
1014 gpiod_set_value_cansleep(reset_gpio, 0);
1016 gpiod_set_value_cansleep(reset_gpio, 1);
1024 static inline void btusb_free_frags(struct btusb_data *data)
1026 unsigned long flags;
1028 spin_lock_irqsave(&data->rxlock, flags);
1030 dev_kfree_skb_irq(data->evt_skb);
1031 data->evt_skb = NULL;
1033 dev_kfree_skb_irq(data->acl_skb);
1034 data->acl_skb = NULL;
1036 dev_kfree_skb_irq(data->sco_skb);
1037 data->sco_skb = NULL;
1039 spin_unlock_irqrestore(&data->rxlock, flags);
1042 static int btusb_recv_event(struct btusb_data *data, struct sk_buff *skb)
1044 if (data->intr_interval) {
1045 /* Trigger dequeue immediatelly if an event is received */
1046 schedule_delayed_work(&data->rx_work, 0);
1049 return data->recv_event(data->hdev, skb);
1052 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
1054 struct sk_buff *skb;
1055 unsigned long flags;
1058 spin_lock_irqsave(&data->rxlock, flags);
1059 skb = data->evt_skb;
1065 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
1071 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
1072 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE;
1075 len = min_t(uint, hci_skb_expect(skb), count);
1076 skb_put_data(skb, buffer, len);
1080 hci_skb_expect(skb) -= len;
1082 if (skb->len == HCI_EVENT_HDR_SIZE) {
1083 /* Complete event header */
1084 hci_skb_expect(skb) = hci_event_hdr(skb)->plen;
1086 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
1095 if (!hci_skb_expect(skb)) {
1096 /* Complete frame */
1097 btusb_recv_event(data, skb);
1102 data->evt_skb = skb;
1103 spin_unlock_irqrestore(&data->rxlock, flags);
1108 static int btusb_recv_acl(struct btusb_data *data, struct sk_buff *skb)
1110 /* Only queue ACL packet if intr_interval is set as it means
1111 * force_poll_sync has been enabled.
1113 if (!data->intr_interval)
1114 return data->recv_acl(data->hdev, skb);
1116 skb_queue_tail(&data->acl_q, skb);
1117 schedule_delayed_work(&data->rx_work, data->intr_interval);
1122 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
1124 struct sk_buff *skb;
1125 unsigned long flags;
1128 spin_lock_irqsave(&data->rxlock, flags);
1129 skb = data->acl_skb;
1135 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
1141 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT;
1142 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE;
1145 len = min_t(uint, hci_skb_expect(skb), count);
1146 skb_put_data(skb, buffer, len);
1150 hci_skb_expect(skb) -= len;
1152 if (skb->len == HCI_ACL_HDR_SIZE) {
1153 __le16 dlen = hci_acl_hdr(skb)->dlen;
1155 /* Complete ACL header */
1156 hci_skb_expect(skb) = __le16_to_cpu(dlen);
1158 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
1167 if (!hci_skb_expect(skb)) {
1168 /* Complete frame */
1169 btusb_recv_acl(data, skb);
1174 data->acl_skb = skb;
1175 spin_unlock_irqrestore(&data->rxlock, flags);
1180 static bool btusb_validate_sco_handle(struct hci_dev *hdev,
1181 struct hci_sco_hdr *hdr)
1185 if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL))
1186 // Can't validate, userspace controls everything.
1190 * USB isochronous transfers are not designed to be reliable and may
1191 * lose fragments. When this happens, the next first fragment
1192 * encountered might actually be a continuation fragment.
1193 * Validate the handle to detect it and drop it, or else the upper
1194 * layer will get garbage for a while.
1197 handle = hci_handle(__le16_to_cpu(hdr->handle));
1199 switch (hci_conn_lookup_type(hdev, handle)) {
1208 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
1210 struct sk_buff *skb;
1211 unsigned long flags;
1214 spin_lock_irqsave(&data->rxlock, flags);
1215 skb = data->sco_skb;
1221 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
1227 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT;
1228 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE;
1231 len = min_t(uint, hci_skb_expect(skb), count);
1232 skb_put_data(skb, buffer, len);
1236 hci_skb_expect(skb) -= len;
1238 if (skb->len == HCI_SCO_HDR_SIZE) {
1239 /* Complete SCO header */
1240 struct hci_sco_hdr *hdr = hci_sco_hdr(skb);
1242 hci_skb_expect(skb) = hdr->dlen;
1244 if (skb_tailroom(skb) < hci_skb_expect(skb) ||
1245 !btusb_validate_sco_handle(data->hdev, hdr)) {
1254 if (!hci_skb_expect(skb)) {
1255 /* Complete frame */
1256 hci_recv_frame(data->hdev, skb);
1261 data->sco_skb = skb;
1262 spin_unlock_irqrestore(&data->rxlock, flags);
1267 static void btusb_intr_complete(struct urb *urb)
1269 struct hci_dev *hdev = urb->context;
1270 struct btusb_data *data = hci_get_drvdata(hdev);
1273 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1274 urb->actual_length);
1276 if (!test_bit(HCI_RUNNING, &hdev->flags))
1279 if (urb->status == 0) {
1280 hdev->stat.byte_rx += urb->actual_length;
1282 if (btusb_recv_intr(data, urb->transfer_buffer,
1283 urb->actual_length) < 0) {
1284 bt_dev_err(hdev, "corrupted event packet");
1285 hdev->stat.err_rx++;
1287 } else if (urb->status == -ENOENT) {
1288 /* Avoid suspend failed when usb_kill_urb */
1292 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
1295 usb_mark_last_busy(data->udev);
1296 usb_anchor_urb(urb, &data->intr_anchor);
1298 err = usb_submit_urb(urb, GFP_ATOMIC);
1300 /* -EPERM: urb is being killed;
1301 * -ENODEV: device got disconnected
1303 if (err != -EPERM && err != -ENODEV)
1304 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1307 hci_cmd_sync_cancel(hdev, -err);
1308 usb_unanchor_urb(urb);
1312 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
1314 struct btusb_data *data = hci_get_drvdata(hdev);
1320 BT_DBG("%s", hdev->name);
1325 urb = usb_alloc_urb(0, mem_flags);
1329 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
1331 buf = kmalloc(size, mem_flags);
1337 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
1339 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
1340 btusb_intr_complete, hdev, data->intr_ep->bInterval);
1342 urb->transfer_flags |= URB_FREE_BUFFER;
1344 usb_anchor_urb(urb, &data->intr_anchor);
1346 err = usb_submit_urb(urb, mem_flags);
1348 if (err != -EPERM && err != -ENODEV)
1349 bt_dev_err(hdev, "urb %p submission failed (%d)",
1352 hci_cmd_sync_cancel(hdev, -err);
1353 usb_unanchor_urb(urb);
1356 /* Only initialize intr_interval if URB poll sync is enabled */
1357 if (!data->poll_sync)
1360 /* The units are frames (milliseconds) for full and low speed devices,
1361 * and microframes (1/8 millisecond) for highspeed and SuperSpeed
1364 * This is done once on open/resume so it shouldn't change even if
1365 * force_poll_sync changes.
1367 switch (urb->dev->speed) {
1368 case USB_SPEED_SUPER_PLUS:
1369 case USB_SPEED_SUPER: /* units are 125us */
1370 data->intr_interval = usecs_to_jiffies(urb->interval * 125);
1373 data->intr_interval = msecs_to_jiffies(urb->interval);
1383 static void btusb_bulk_complete(struct urb *urb)
1385 struct hci_dev *hdev = urb->context;
1386 struct btusb_data *data = hci_get_drvdata(hdev);
1389 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1390 urb->actual_length);
1392 if (!test_bit(HCI_RUNNING, &hdev->flags))
1395 if (urb->status == 0) {
1396 hdev->stat.byte_rx += urb->actual_length;
1398 if (data->recv_bulk(data, urb->transfer_buffer,
1399 urb->actual_length) < 0) {
1400 bt_dev_err(hdev, "corrupted ACL packet");
1401 hdev->stat.err_rx++;
1403 } else if (urb->status == -ENOENT) {
1404 /* Avoid suspend failed when usb_kill_urb */
1408 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
1411 usb_anchor_urb(urb, &data->bulk_anchor);
1412 usb_mark_last_busy(data->udev);
1414 err = usb_submit_urb(urb, GFP_ATOMIC);
1416 /* -EPERM: urb is being killed;
1417 * -ENODEV: device got disconnected
1419 if (err != -EPERM && err != -ENODEV)
1420 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1422 usb_unanchor_urb(urb);
1426 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
1428 struct btusb_data *data = hci_get_drvdata(hdev);
1432 int err, size = HCI_MAX_FRAME_SIZE;
1434 BT_DBG("%s", hdev->name);
1436 if (!data->bulk_rx_ep)
1439 urb = usb_alloc_urb(0, mem_flags);
1443 buf = kmalloc(size, mem_flags);
1449 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
1451 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1452 btusb_bulk_complete, hdev);
1454 urb->transfer_flags |= URB_FREE_BUFFER;
1456 usb_mark_last_busy(data->udev);
1457 usb_anchor_urb(urb, &data->bulk_anchor);
1459 err = usb_submit_urb(urb, mem_flags);
1461 if (err != -EPERM && err != -ENODEV)
1462 bt_dev_err(hdev, "urb %p submission failed (%d)",
1464 usb_unanchor_urb(urb);
1472 static void btusb_isoc_complete(struct urb *urb)
1474 struct hci_dev *hdev = urb->context;
1475 struct btusb_data *data = hci_get_drvdata(hdev);
1478 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1479 urb->actual_length);
1481 if (!test_bit(HCI_RUNNING, &hdev->flags))
1484 if (urb->status == 0) {
1485 for (i = 0; i < urb->number_of_packets; i++) {
1486 unsigned int offset = urb->iso_frame_desc[i].offset;
1487 unsigned int length = urb->iso_frame_desc[i].actual_length;
1489 if (urb->iso_frame_desc[i].status)
1492 hdev->stat.byte_rx += length;
1494 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
1496 bt_dev_err(hdev, "corrupted SCO packet");
1497 hdev->stat.err_rx++;
1500 } else if (urb->status == -ENOENT) {
1501 /* Avoid suspend failed when usb_kill_urb */
1505 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
1508 usb_anchor_urb(urb, &data->isoc_anchor);
1510 err = usb_submit_urb(urb, GFP_ATOMIC);
1512 /* -EPERM: urb is being killed;
1513 * -ENODEV: device got disconnected
1515 if (err != -EPERM && err != -ENODEV)
1516 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1518 usb_unanchor_urb(urb);
1522 static inline void __fill_isoc_descriptor_msbc(struct urb *urb, int len,
1523 int mtu, struct btusb_data *data)
1525 int i = 0, offset = 0;
1526 unsigned int interval;
1528 BT_DBG("len %d mtu %d", len, mtu);
1530 /* For mSBC ALT 6 settings some chips need to transmit the data
1531 * continuously without the zero length of USB packets.
1533 if (test_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags))
1534 goto ignore_usb_alt6_packet_flow;
1536 /* For mSBC ALT 6 setting the host will send the packet at continuous
1537 * flow. As per core spec 5, vol 4, part B, table 2.1. For ALT setting
1538 * 6 the HCI PACKET INTERVAL should be 7.5ms for every usb packets.
1539 * To maintain the rate we send 63bytes of usb packets alternatively for
1540 * 7ms and 8ms to maintain the rate as 7.5ms.
1542 if (data->usb_alt6_packet_flow) {
1544 data->usb_alt6_packet_flow = false;
1547 data->usb_alt6_packet_flow = true;
1550 for (i = 0; i < interval; i++) {
1551 urb->iso_frame_desc[i].offset = offset;
1552 urb->iso_frame_desc[i].length = offset;
1555 ignore_usb_alt6_packet_flow:
1556 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1557 urb->iso_frame_desc[i].offset = offset;
1558 urb->iso_frame_desc[i].length = len;
1562 urb->number_of_packets = i;
1565 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
1569 BT_DBG("len %d mtu %d", len, mtu);
1571 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
1572 i++, offset += mtu, len -= mtu) {
1573 urb->iso_frame_desc[i].offset = offset;
1574 urb->iso_frame_desc[i].length = mtu;
1577 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1578 urb->iso_frame_desc[i].offset = offset;
1579 urb->iso_frame_desc[i].length = len;
1583 urb->number_of_packets = i;
1586 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
1588 struct btusb_data *data = hci_get_drvdata(hdev);
1594 BT_DBG("%s", hdev->name);
1596 if (!data->isoc_rx_ep)
1599 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
1603 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
1604 BTUSB_MAX_ISOC_FRAMES;
1606 buf = kmalloc(size, mem_flags);
1612 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
1614 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
1615 hdev, data->isoc_rx_ep->bInterval);
1617 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
1619 __fill_isoc_descriptor(urb, size,
1620 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
1622 usb_anchor_urb(urb, &data->isoc_anchor);
1624 err = usb_submit_urb(urb, mem_flags);
1626 if (err != -EPERM && err != -ENODEV)
1627 bt_dev_err(hdev, "urb %p submission failed (%d)",
1629 usb_unanchor_urb(urb);
1637 static void btusb_diag_complete(struct urb *urb)
1639 struct hci_dev *hdev = urb->context;
1640 struct btusb_data *data = hci_get_drvdata(hdev);
1643 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1644 urb->actual_length);
1646 if (urb->status == 0) {
1647 struct sk_buff *skb;
1649 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC);
1651 skb_put_data(skb, urb->transfer_buffer,
1652 urb->actual_length);
1653 hci_recv_diag(hdev, skb);
1655 } else if (urb->status == -ENOENT) {
1656 /* Avoid suspend failed when usb_kill_urb */
1660 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags))
1663 usb_anchor_urb(urb, &data->diag_anchor);
1664 usb_mark_last_busy(data->udev);
1666 err = usb_submit_urb(urb, GFP_ATOMIC);
1668 /* -EPERM: urb is being killed;
1669 * -ENODEV: device got disconnected
1671 if (err != -EPERM && err != -ENODEV)
1672 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1674 usb_unanchor_urb(urb);
1678 static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags)
1680 struct btusb_data *data = hci_get_drvdata(hdev);
1684 int err, size = HCI_MAX_FRAME_SIZE;
1686 BT_DBG("%s", hdev->name);
1688 if (!data->diag_rx_ep)
1691 urb = usb_alloc_urb(0, mem_flags);
1695 buf = kmalloc(size, mem_flags);
1701 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress);
1703 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1704 btusb_diag_complete, hdev);
1706 urb->transfer_flags |= URB_FREE_BUFFER;
1708 usb_mark_last_busy(data->udev);
1709 usb_anchor_urb(urb, &data->diag_anchor);
1711 err = usb_submit_urb(urb, mem_flags);
1713 if (err != -EPERM && err != -ENODEV)
1714 bt_dev_err(hdev, "urb %p submission failed (%d)",
1716 usb_unanchor_urb(urb);
1724 static void btusb_tx_complete(struct urb *urb)
1726 struct sk_buff *skb = urb->context;
1727 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1728 struct btusb_data *data = hci_get_drvdata(hdev);
1729 unsigned long flags;
1731 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1732 urb->actual_length);
1734 if (!test_bit(HCI_RUNNING, &hdev->flags))
1738 hdev->stat.byte_tx += urb->transfer_buffer_length;
1740 if (hci_skb_pkt_type(skb) == HCI_COMMAND_PKT)
1741 hci_cmd_sync_cancel(hdev, -urb->status);
1742 hdev->stat.err_tx++;
1746 spin_lock_irqsave(&data->txlock, flags);
1747 data->tx_in_flight--;
1748 spin_unlock_irqrestore(&data->txlock, flags);
1750 kfree(urb->setup_packet);
1755 static void btusb_isoc_tx_complete(struct urb *urb)
1757 struct sk_buff *skb = urb->context;
1758 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1760 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1761 urb->actual_length);
1763 if (!test_bit(HCI_RUNNING, &hdev->flags))
1767 hdev->stat.byte_tx += urb->transfer_buffer_length;
1769 hdev->stat.err_tx++;
1772 kfree(urb->setup_packet);
1777 static int btusb_open(struct hci_dev *hdev)
1779 struct btusb_data *data = hci_get_drvdata(hdev);
1782 BT_DBG("%s", hdev->name);
1784 err = usb_autopm_get_interface(data->intf);
1788 /* Patching USB firmware files prior to starting any URBs of HCI path
1789 * It is more safe to use USB bulk channel for downloading USB patch
1791 if (data->setup_on_usb) {
1792 err = data->setup_on_usb(hdev);
1797 data->intf->needs_remote_wakeup = 1;
1799 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
1802 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
1806 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1808 usb_kill_anchored_urbs(&data->intr_anchor);
1812 set_bit(BTUSB_BULK_RUNNING, &data->flags);
1813 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1816 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL))
1817 set_bit(BTUSB_DIAG_RUNNING, &data->flags);
1821 usb_autopm_put_interface(data->intf);
1825 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1827 usb_autopm_put_interface(data->intf);
1831 static void btusb_stop_traffic(struct btusb_data *data)
1833 usb_kill_anchored_urbs(&data->intr_anchor);
1834 usb_kill_anchored_urbs(&data->bulk_anchor);
1835 usb_kill_anchored_urbs(&data->isoc_anchor);
1836 usb_kill_anchored_urbs(&data->diag_anchor);
1837 usb_kill_anchored_urbs(&data->ctrl_anchor);
1840 static int btusb_close(struct hci_dev *hdev)
1842 struct btusb_data *data = hci_get_drvdata(hdev);
1845 BT_DBG("%s", hdev->name);
1847 cancel_delayed_work(&data->rx_work);
1848 cancel_work_sync(&data->work);
1849 cancel_work_sync(&data->waker);
1851 skb_queue_purge(&data->acl_q);
1853 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1854 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1855 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1856 clear_bit(BTUSB_DIAG_RUNNING, &data->flags);
1858 btusb_stop_traffic(data);
1859 btusb_free_frags(data);
1861 err = usb_autopm_get_interface(data->intf);
1865 data->intf->needs_remote_wakeup = 0;
1867 /* Enable remote wake up for auto-suspend */
1868 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags))
1869 data->intf->needs_remote_wakeup = 1;
1871 usb_autopm_put_interface(data->intf);
1874 usb_scuttle_anchored_urbs(&data->deferred);
1878 static int btusb_flush(struct hci_dev *hdev)
1880 struct btusb_data *data = hci_get_drvdata(hdev);
1882 BT_DBG("%s", hdev->name);
1884 cancel_delayed_work(&data->rx_work);
1886 skb_queue_purge(&data->acl_q);
1888 usb_kill_anchored_urbs(&data->tx_anchor);
1889 btusb_free_frags(data);
1894 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
1896 struct btusb_data *data = hci_get_drvdata(hdev);
1897 struct usb_ctrlrequest *dr;
1901 urb = usb_alloc_urb(0, GFP_KERNEL);
1903 return ERR_PTR(-ENOMEM);
1905 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
1908 return ERR_PTR(-ENOMEM);
1911 dr->bRequestType = data->cmdreq_type;
1912 dr->bRequest = data->cmdreq;
1915 dr->wLength = __cpu_to_le16(skb->len);
1917 pipe = usb_sndctrlpipe(data->udev, 0x00);
1919 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
1920 skb->data, skb->len, btusb_tx_complete, skb);
1922 skb->dev = (void *)hdev;
1927 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
1929 struct btusb_data *data = hci_get_drvdata(hdev);
1933 if (!data->bulk_tx_ep)
1934 return ERR_PTR(-ENODEV);
1936 urb = usb_alloc_urb(0, GFP_KERNEL);
1938 return ERR_PTR(-ENOMEM);
1940 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
1942 usb_fill_bulk_urb(urb, data->udev, pipe,
1943 skb->data, skb->len, btusb_tx_complete, skb);
1945 skb->dev = (void *)hdev;
1950 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
1952 struct btusb_data *data = hci_get_drvdata(hdev);
1956 if (!data->isoc_tx_ep)
1957 return ERR_PTR(-ENODEV);
1959 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
1961 return ERR_PTR(-ENOMEM);
1963 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
1965 usb_fill_int_urb(urb, data->udev, pipe,
1966 skb->data, skb->len, btusb_isoc_tx_complete,
1967 skb, data->isoc_tx_ep->bInterval);
1969 urb->transfer_flags = URB_ISO_ASAP;
1971 if (data->isoc_altsetting == 6)
1972 __fill_isoc_descriptor_msbc(urb, skb->len,
1973 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize),
1976 __fill_isoc_descriptor(urb, skb->len,
1977 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
1978 skb->dev = (void *)hdev;
1983 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
1985 struct btusb_data *data = hci_get_drvdata(hdev);
1988 usb_anchor_urb(urb, &data->tx_anchor);
1990 err = usb_submit_urb(urb, GFP_KERNEL);
1992 if (err != -EPERM && err != -ENODEV)
1993 bt_dev_err(hdev, "urb %p submission failed (%d)",
1995 kfree(urb->setup_packet);
1996 usb_unanchor_urb(urb);
1998 usb_mark_last_busy(data->udev);
2005 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
2007 struct btusb_data *data = hci_get_drvdata(hdev);
2008 unsigned long flags;
2011 spin_lock_irqsave(&data->txlock, flags);
2012 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
2014 data->tx_in_flight++;
2015 spin_unlock_irqrestore(&data->txlock, flags);
2018 return submit_tx_urb(hdev, urb);
2020 usb_anchor_urb(urb, &data->deferred);
2021 schedule_work(&data->waker);
2027 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
2031 BT_DBG("%s", hdev->name);
2033 switch (hci_skb_pkt_type(skb)) {
2034 case HCI_COMMAND_PKT:
2035 urb = alloc_ctrl_urb(hdev, skb);
2037 return PTR_ERR(urb);
2039 hdev->stat.cmd_tx++;
2040 return submit_or_queue_tx_urb(hdev, urb);
2042 case HCI_ACLDATA_PKT:
2043 urb = alloc_bulk_urb(hdev, skb);
2045 return PTR_ERR(urb);
2047 hdev->stat.acl_tx++;
2048 return submit_or_queue_tx_urb(hdev, urb);
2050 case HCI_SCODATA_PKT:
2051 if (hci_conn_num(hdev, SCO_LINK) < 1)
2054 urb = alloc_isoc_urb(hdev, skb);
2056 return PTR_ERR(urb);
2058 hdev->stat.sco_tx++;
2059 return submit_tx_urb(hdev, urb);
2061 case HCI_ISODATA_PKT:
2062 urb = alloc_bulk_urb(hdev, skb);
2064 return PTR_ERR(urb);
2066 return submit_or_queue_tx_urb(hdev, urb);
2072 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
2074 struct btusb_data *data = hci_get_drvdata(hdev);
2076 BT_DBG("%s evt %d", hdev->name, evt);
2078 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
2079 data->sco_num = hci_conn_num(hdev, SCO_LINK);
2080 data->air_mode = evt;
2081 schedule_work(&data->work);
2085 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
2087 struct btusb_data *data = hci_get_drvdata(hdev);
2088 struct usb_interface *intf = data->isoc;
2089 struct usb_endpoint_descriptor *ep_desc;
2095 err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting);
2097 bt_dev_err(hdev, "setting interface failed (%d)", -err);
2101 data->isoc_altsetting = altsetting;
2103 data->isoc_tx_ep = NULL;
2104 data->isoc_rx_ep = NULL;
2106 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2107 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2109 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
2110 data->isoc_tx_ep = ep_desc;
2114 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
2115 data->isoc_rx_ep = ep_desc;
2120 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
2121 bt_dev_err(hdev, "invalid SCO descriptors");
2128 static int btusb_switch_alt_setting(struct hci_dev *hdev, int new_alts)
2130 struct btusb_data *data = hci_get_drvdata(hdev);
2133 if (data->isoc_altsetting != new_alts) {
2134 unsigned long flags;
2136 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2137 usb_kill_anchored_urbs(&data->isoc_anchor);
2139 /* When isochronous alternate setting needs to be
2140 * changed, because SCO connection has been added
2141 * or removed, a packet fragment may be left in the
2142 * reassembling state. This could lead to wrongly
2143 * assembled fragments.
2145 * Clear outstanding fragment when selecting a new
2146 * alternate setting.
2148 spin_lock_irqsave(&data->rxlock, flags);
2149 kfree_skb(data->sco_skb);
2150 data->sco_skb = NULL;
2151 spin_unlock_irqrestore(&data->rxlock, flags);
2153 err = __set_isoc_interface(hdev, new_alts);
2158 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2159 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
2160 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2162 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
2168 static struct usb_host_interface *btusb_find_altsetting(struct btusb_data *data,
2171 struct usb_interface *intf = data->isoc;
2174 BT_DBG("Looking for Alt no :%d", alt);
2179 for (i = 0; i < intf->num_altsetting; i++) {
2180 if (intf->altsetting[i].desc.bAlternateSetting == alt)
2181 return &intf->altsetting[i];
2187 static void btusb_work(struct work_struct *work)
2189 struct btusb_data *data = container_of(work, struct btusb_data, work);
2190 struct hci_dev *hdev = data->hdev;
2194 if (data->sco_num > 0) {
2195 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
2196 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
2198 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2199 usb_kill_anchored_urbs(&data->isoc_anchor);
2203 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
2206 if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_CVSD) {
2207 if (hdev->voice_setting & 0x0020) {
2208 static const int alts[3] = { 2, 4, 5 };
2210 new_alts = alts[data->sco_num - 1];
2212 new_alts = data->sco_num;
2214 } else if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_TRANSP) {
2215 /* Bluetooth USB spec recommends alt 6 (63 bytes), but
2216 * many adapters do not support it. Alt 1 appears to
2217 * work for all adapters that do not have alt 6, and
2218 * which work with WBS at all. Some devices prefer
2219 * alt 3 (HCI payload >= 60 Bytes let air packet
2220 * data satisfy 60 bytes), requiring
2221 * MTU >= 3 (packets) * 25 (size) - 3 (headers) = 72
2222 * see also Core spec 5, vol 4, B 2.1.1 & Table 2.1.
2224 if (btusb_find_altsetting(data, 6))
2226 else if (btusb_find_altsetting(data, 3) &&
2227 hdev->sco_mtu >= 72 &&
2228 test_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags))
2234 if (btusb_switch_alt_setting(hdev, new_alts) < 0)
2235 bt_dev_err(hdev, "set USB alt:(%d) failed!", new_alts);
2237 usb_kill_anchored_urbs(&data->isoc_anchor);
2239 if (test_and_clear_bit(BTUSB_ISOC_RUNNING, &data->flags))
2240 __set_isoc_interface(hdev, 0);
2242 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
2243 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
2247 static void btusb_waker(struct work_struct *work)
2249 struct btusb_data *data = container_of(work, struct btusb_data, waker);
2252 err = usb_autopm_get_interface(data->intf);
2256 usb_autopm_put_interface(data->intf);
2259 static void btusb_rx_work(struct work_struct *work)
2261 struct btusb_data *data = container_of(work, struct btusb_data,
2263 struct sk_buff *skb;
2265 /* Dequeue ACL data received during the interval */
2266 while ((skb = skb_dequeue(&data->acl_q)))
2267 data->recv_acl(data->hdev, skb);
2270 static int btusb_setup_bcm92035(struct hci_dev *hdev)
2272 struct sk_buff *skb;
2275 BT_DBG("%s", hdev->name);
2277 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
2279 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb));
2286 static int btusb_setup_csr(struct hci_dev *hdev)
2288 struct btusb_data *data = hci_get_drvdata(hdev);
2289 u16 bcdDevice = le16_to_cpu(data->udev->descriptor.bcdDevice);
2290 struct hci_rp_read_local_version *rp;
2291 struct sk_buff *skb;
2292 bool is_fake = false;
2295 BT_DBG("%s", hdev->name);
2297 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
2300 int err = PTR_ERR(skb);
2301 bt_dev_err(hdev, "CSR: Local version failed (%d)", err);
2305 rp = skb_pull_data(skb, sizeof(*rp));
2307 bt_dev_err(hdev, "CSR: Local version length mismatch");
2312 bt_dev_info(hdev, "CSR: Setting up dongle with HCI ver=%u rev=%04x",
2313 rp->hci_ver, le16_to_cpu(rp->hci_rev));
2315 bt_dev_info(hdev, "LMP ver=%u subver=%04x; manufacturer=%u",
2316 rp->lmp_ver, le16_to_cpu(rp->lmp_subver),
2317 le16_to_cpu(rp->manufacturer));
2319 /* Detect a wide host of Chinese controllers that aren't CSR.
2321 * Known fake bcdDevices: 0x0100, 0x0134, 0x1915, 0x2520, 0x7558, 0x8891
2323 * The main thing they have in common is that these are really popular low-cost
2324 * options that support newer Bluetooth versions but rely on heavy VID/PID
2325 * squatting of this poor old Bluetooth 1.1 device. Even sold as such.
2327 * We detect actual CSR devices by checking that the HCI manufacturer code
2328 * is Cambridge Silicon Radio (10) and ensuring that LMP sub-version and
2329 * HCI rev values always match. As they both store the firmware number.
2331 if (le16_to_cpu(rp->manufacturer) != 10 ||
2332 le16_to_cpu(rp->hci_rev) != le16_to_cpu(rp->lmp_subver))
2335 /* Known legit CSR firmware build numbers and their supported BT versions:
2336 * - 1.1 (0x1) -> 0x0073, 0x020d, 0x033c, 0x034e
2337 * - 1.2 (0x2) -> 0x04d9, 0x0529
2338 * - 2.0 (0x3) -> 0x07a6, 0x07ad, 0x0c5c
2339 * - 2.1 (0x4) -> 0x149c, 0x1735, 0x1899 (0x1899 is a BlueCore4-External)
2340 * - 4.0 (0x6) -> 0x1d86, 0x2031, 0x22bb
2342 * e.g. Real CSR dongles with LMP subversion 0x73 are old enough that
2343 * support BT 1.1 only; so it's a dead giveaway when some
2344 * third-party BT 4.0 dongle reuses it.
2346 else if (le16_to_cpu(rp->lmp_subver) <= 0x034e &&
2347 rp->hci_ver > BLUETOOTH_VER_1_1)
2350 else if (le16_to_cpu(rp->lmp_subver) <= 0x0529 &&
2351 rp->hci_ver > BLUETOOTH_VER_1_2)
2354 else if (le16_to_cpu(rp->lmp_subver) <= 0x0c5c &&
2355 rp->hci_ver > BLUETOOTH_VER_2_0)
2358 else if (le16_to_cpu(rp->lmp_subver) <= 0x1899 &&
2359 rp->hci_ver > BLUETOOTH_VER_2_1)
2362 else if (le16_to_cpu(rp->lmp_subver) <= 0x22bb &&
2363 rp->hci_ver > BLUETOOTH_VER_4_0)
2366 /* Other clones which beat all the above checks */
2367 else if (bcdDevice == 0x0134 &&
2368 le16_to_cpu(rp->lmp_subver) == 0x0c5c &&
2369 rp->hci_ver == BLUETOOTH_VER_2_0)
2373 bt_dev_warn(hdev, "CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once...");
2375 /* Generally these clones have big discrepancies between
2376 * advertised features and what's actually supported.
2377 * Probably will need to be expanded in the future;
2378 * without these the controller will lock up.
2380 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
2381 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks);
2382 set_bit(HCI_QUIRK_BROKEN_FILTER_CLEAR_ALL, &hdev->quirks);
2383 set_bit(HCI_QUIRK_NO_SUSPEND_NOTIFIER, &hdev->quirks);
2385 /* Clear the reset quirk since this is not an actual
2386 * early Bluetooth 1.1 device from CSR.
2388 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
2389 clear_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
2392 * Special workaround for these BT 4.0 chip clones, and potentially more:
2394 * - 0x0134: a Barrot 8041a02 (HCI rev: 0x0810 sub: 0x1012)
2395 * - 0x7558: IC markings FR3191AHAL 749H15143 (HCI rev/sub-version: 0x0709)
2397 * These controllers are really messed-up.
2399 * 1. Their bulk RX endpoint will never report any data unless
2400 * the device was suspended at least once (yes, really).
2401 * 2. They will not wakeup when autosuspended and receiving data
2402 * on their bulk RX endpoint from e.g. a keyboard or mouse
2403 * (IOW remote-wakeup support is broken for the bulk endpoint).
2405 * To fix 1. enable runtime-suspend, force-suspend the
2406 * HCI and then wake-it up by disabling runtime-suspend.
2408 * To fix 2. clear the HCI's can_wake flag, this way the HCI
2409 * will still be autosuspended when it is not open.
2413 * Because these are widespread problems we prefer generic solutions; so
2414 * apply this initialization quirk to every controller that gets here,
2415 * it should be harmless. The alternative is to not work at all.
2417 pm_runtime_allow(&data->udev->dev);
2419 ret = pm_runtime_suspend(&data->udev->dev);
2423 bt_dev_warn(hdev, "CSR: Couldn't suspend the device for our Barrot 8041a02 receive-issue workaround");
2425 pm_runtime_forbid(&data->udev->dev);
2427 device_set_wakeup_capable(&data->udev->dev, false);
2429 /* Re-enable autosuspend if this was requested */
2430 if (enable_autosuspend)
2431 usb_enable_autosuspend(data->udev);
2439 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
2441 struct sk_buff *skb;
2442 struct hci_event_hdr *hdr;
2443 struct hci_ev_cmd_complete *evt;
2445 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL);
2449 hdr = skb_put(skb, sizeof(*hdr));
2450 hdr->evt = HCI_EV_CMD_COMPLETE;
2451 hdr->plen = sizeof(*evt) + 1;
2453 evt = skb_put(skb, sizeof(*evt));
2455 evt->opcode = cpu_to_le16(opcode);
2457 skb_put_u8(skb, 0x00);
2459 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
2461 return hci_recv_frame(hdev, skb);
2464 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
2467 struct hci_dev *hdev = data->hdev;
2469 /* When the device is in bootloader mode, then it can send
2470 * events via the bulk endpoint. These events are treated the
2471 * same way as the ones received from the interrupt endpoint.
2473 if (btintel_test_flag(hdev, INTEL_BOOTLOADER))
2474 return btusb_recv_intr(data, buffer, count);
2476 return btusb_recv_bulk(data, buffer, count);
2479 static int btusb_intel_diagnostics(struct hci_dev *hdev, struct sk_buff *skb)
2481 struct intel_tlv *tlv = (void *)&skb->data[5];
2483 /* The first event is always an event type TLV */
2484 if (tlv->type != INTEL_TLV_TYPE_ID)
2487 switch (tlv->val[0]) {
2488 case INTEL_TLV_SYSTEM_EXCEPTION:
2489 case INTEL_TLV_FATAL_EXCEPTION:
2490 case INTEL_TLV_DEBUG_EXCEPTION:
2491 case INTEL_TLV_TEST_EXCEPTION:
2492 /* Generate devcoredump from exception */
2493 if (!hci_devcd_init(hdev, skb->len)) {
2494 hci_devcd_append(hdev, skb);
2495 hci_devcd_complete(hdev);
2497 bt_dev_err(hdev, "Failed to generate devcoredump");
2502 bt_dev_err(hdev, "Invalid exception type %02X", tlv->val[0]);
2506 return hci_recv_frame(hdev, skb);
2509 static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb)
2511 struct hci_event_hdr *hdr = (void *)skb->data;
2512 const char diagnostics_hdr[] = { 0x87, 0x80, 0x03 };
2514 if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff &&
2516 const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1;
2517 unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1;
2519 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) {
2520 switch (skb->data[2]) {
2522 /* When switching to the operational firmware
2523 * the device sends a vendor specific event
2524 * indicating that the bootup completed.
2526 btintel_bootup(hdev, ptr, len);
2529 /* When the firmware loading completes the
2530 * device sends out a vendor specific event
2531 * indicating the result of the firmware
2534 btintel_secure_send_result(hdev, ptr, len);
2539 /* Handle all diagnostics events separately. May still call
2542 if (len >= sizeof(diagnostics_hdr) &&
2543 memcmp(&skb->data[2], diagnostics_hdr,
2544 sizeof(diagnostics_hdr)) == 0) {
2545 return btusb_intel_diagnostics(hdev, skb);
2549 return hci_recv_frame(hdev, skb);
2552 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
2556 BT_DBG("%s", hdev->name);
2558 switch (hci_skb_pkt_type(skb)) {
2559 case HCI_COMMAND_PKT:
2560 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) {
2561 struct hci_command_hdr *cmd = (void *)skb->data;
2562 __u16 opcode = le16_to_cpu(cmd->opcode);
2564 /* When in bootloader mode and the command 0xfc09
2565 * is received, it needs to be send down the
2566 * bulk endpoint. So allocate a bulk URB instead.
2568 if (opcode == 0xfc09)
2569 urb = alloc_bulk_urb(hdev, skb);
2571 urb = alloc_ctrl_urb(hdev, skb);
2573 /* When the 0xfc01 command is issued to boot into
2574 * the operational firmware, it will actually not
2575 * send a command complete event. To keep the flow
2576 * control working inject that event here.
2578 if (opcode == 0xfc01)
2579 inject_cmd_complete(hdev, opcode);
2581 urb = alloc_ctrl_urb(hdev, skb);
2584 return PTR_ERR(urb);
2586 hdev->stat.cmd_tx++;
2587 return submit_or_queue_tx_urb(hdev, urb);
2589 case HCI_ACLDATA_PKT:
2590 urb = alloc_bulk_urb(hdev, skb);
2592 return PTR_ERR(urb);
2594 hdev->stat.acl_tx++;
2595 return submit_or_queue_tx_urb(hdev, urb);
2597 case HCI_SCODATA_PKT:
2598 if (hci_conn_num(hdev, SCO_LINK) < 1)
2601 urb = alloc_isoc_urb(hdev, skb);
2603 return PTR_ERR(urb);
2605 hdev->stat.sco_tx++;
2606 return submit_tx_urb(hdev, urb);
2608 case HCI_ISODATA_PKT:
2609 urb = alloc_bulk_urb(hdev, skb);
2611 return PTR_ERR(urb);
2613 return submit_or_queue_tx_urb(hdev, urb);
2619 static int btusb_setup_realtek(struct hci_dev *hdev)
2621 struct btusb_data *data = hci_get_drvdata(hdev);
2624 ret = btrtl_setup_realtek(hdev);
2626 if (btrealtek_test_flag(data->hdev, REALTEK_ALT6_CONTINUOUS_TX_CHIP))
2627 set_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags);
2632 static int btusb_recv_event_realtek(struct hci_dev *hdev, struct sk_buff *skb)
2634 if (skb->data[0] == HCI_VENDOR_PKT && skb->data[2] == RTK_SUB_EVENT_CODE_COREDUMP) {
2635 struct rtk_dev_coredump_hdr hdr = {
2636 .code = RTK_DEVCOREDUMP_CODE_MEMDUMP,
2639 bt_dev_dbg(hdev, "RTL: received coredump vendor evt, len %u",
2642 btusb_rtl_alloc_devcoredump(hdev, &hdr, skb->data, skb->len);
2648 return hci_recv_frame(hdev, skb);
2651 /* UHW CR mapping */
2652 #define MTK_BT_MISC 0x70002510
2653 #define MTK_BT_SUBSYS_RST 0x70002610
2654 #define MTK_UDMA_INT_STA_BT 0x74000024
2655 #define MTK_UDMA_INT_STA_BT1 0x74000308
2656 #define MTK_BT_WDT_STATUS 0x740003A0
2657 #define MTK_EP_RST_OPT 0x74011890
2658 #define MTK_EP_RST_IN_OUT_OPT 0x00010001
2659 #define MTK_BT_RST_DONE 0x00000100
2660 #define MTK_BT_RESET_WAIT_MS 100
2661 #define MTK_BT_RESET_NUM_TRIES 10
2663 static void btusb_mtk_wmt_recv(struct urb *urb)
2665 struct hci_dev *hdev = urb->context;
2666 struct btusb_data *data = hci_get_drvdata(hdev);
2667 struct sk_buff *skb;
2670 if (urb->status == 0 && urb->actual_length > 0) {
2671 hdev->stat.byte_rx += urb->actual_length;
2673 /* WMT event shouldn't be fragmented and the size should be
2674 * less than HCI_WMT_MAX_EVENT_SIZE.
2676 skb = bt_skb_alloc(HCI_WMT_MAX_EVENT_SIZE, GFP_ATOMIC);
2678 hdev->stat.err_rx++;
2679 kfree(urb->setup_packet);
2683 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
2684 skb_put_data(skb, urb->transfer_buffer, urb->actual_length);
2686 /* When someone waits for the WMT event, the skb is being cloned
2687 * and being processed the events from there then.
2689 if (test_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags)) {
2690 data->evt_skb = skb_clone(skb, GFP_ATOMIC);
2691 if (!data->evt_skb) {
2693 kfree(urb->setup_packet);
2698 err = hci_recv_frame(hdev, skb);
2700 kfree_skb(data->evt_skb);
2701 data->evt_skb = NULL;
2702 kfree(urb->setup_packet);
2706 if (test_and_clear_bit(BTUSB_TX_WAIT_VND_EVT,
2708 /* Barrier to sync with other CPUs */
2709 smp_mb__after_atomic();
2710 wake_up_bit(&data->flags,
2711 BTUSB_TX_WAIT_VND_EVT);
2713 kfree(urb->setup_packet);
2715 } else if (urb->status == -ENOENT) {
2716 /* Avoid suspend failed when usb_kill_urb */
2720 usb_mark_last_busy(data->udev);
2722 /* The URB complete handler is still called with urb->actual_length = 0
2723 * when the event is not available, so we should keep re-submitting
2724 * URB until WMT event returns, Also, It's necessary to wait some time
2725 * between the two consecutive control URBs to relax the target device
2726 * to generate the event. Otherwise, the WMT event cannot return from
2727 * the device successfully.
2731 usb_anchor_urb(urb, &data->ctrl_anchor);
2732 err = usb_submit_urb(urb, GFP_ATOMIC);
2734 kfree(urb->setup_packet);
2735 /* -EPERM: urb is being killed;
2736 * -ENODEV: device got disconnected
2738 if (err != -EPERM && err != -ENODEV)
2739 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
2741 usb_unanchor_urb(urb);
2745 static int btusb_mtk_submit_wmt_recv_urb(struct hci_dev *hdev)
2747 struct btusb_data *data = hci_get_drvdata(hdev);
2748 struct usb_ctrlrequest *dr;
2754 urb = usb_alloc_urb(0, GFP_KERNEL);
2758 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
2764 dr->bRequestType = USB_TYPE_VENDOR | USB_DIR_IN;
2766 dr->wIndex = cpu_to_le16(0);
2767 dr->wValue = cpu_to_le16(48);
2768 dr->wLength = cpu_to_le16(size);
2770 buf = kmalloc(size, GFP_KERNEL);
2777 pipe = usb_rcvctrlpipe(data->udev, 0);
2779 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
2780 buf, size, btusb_mtk_wmt_recv, hdev);
2782 urb->transfer_flags |= URB_FREE_BUFFER;
2784 usb_anchor_urb(urb, &data->ctrl_anchor);
2785 err = usb_submit_urb(urb, GFP_KERNEL);
2787 if (err != -EPERM && err != -ENODEV)
2788 bt_dev_err(hdev, "urb %p submission failed (%d)",
2790 usb_unanchor_urb(urb);
2798 static int btusb_mtk_hci_wmt_sync(struct hci_dev *hdev,
2799 struct btmtk_hci_wmt_params *wmt_params)
2801 struct btusb_data *data = hci_get_drvdata(hdev);
2802 struct btmtk_hci_wmt_evt_funcc *wmt_evt_funcc;
2803 u32 hlen, status = BTMTK_WMT_INVALID;
2804 struct btmtk_hci_wmt_evt *wmt_evt;
2805 struct btmtk_hci_wmt_cmd *wc;
2806 struct btmtk_wmt_hdr *hdr;
2809 /* Send the WMT command and wait until the WMT event returns */
2810 hlen = sizeof(*hdr) + wmt_params->dlen;
2814 wc = kzalloc(hlen, GFP_KERNEL);
2820 hdr->op = wmt_params->op;
2821 hdr->dlen = cpu_to_le16(wmt_params->dlen + 1);
2822 hdr->flag = wmt_params->flag;
2823 memcpy(wc->data, wmt_params->data, wmt_params->dlen);
2825 set_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2827 /* WMT cmd/event doesn't follow up the generic HCI cmd/event handling,
2828 * it needs constantly polling control pipe until the host received the
2829 * WMT event, thus, we should require to specifically acquire PM counter
2830 * on the USB to prevent the interface from entering auto suspended
2831 * while WMT cmd/event in progress.
2833 err = usb_autopm_get_interface(data->intf);
2837 err = __hci_cmd_send(hdev, 0xfc6f, hlen, wc);
2840 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2841 usb_autopm_put_interface(data->intf);
2845 /* Submit control IN URB on demand to process the WMT event */
2846 err = btusb_mtk_submit_wmt_recv_urb(hdev);
2848 usb_autopm_put_interface(data->intf);
2853 /* The vendor specific WMT commands are all answered by a vendor
2854 * specific event and will have the Command Status or Command
2855 * Complete as with usual HCI command flow control.
2857 * After sending the command, wait for BTUSB_TX_WAIT_VND_EVT
2858 * state to be cleared. The driver specific event receive routine
2859 * will clear that state and with that indicate completion of the
2862 err = wait_on_bit_timeout(&data->flags, BTUSB_TX_WAIT_VND_EVT,
2863 TASK_INTERRUPTIBLE, HCI_INIT_TIMEOUT);
2864 if (err == -EINTR) {
2865 bt_dev_err(hdev, "Execution of wmt command interrupted");
2866 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2871 bt_dev_err(hdev, "Execution of wmt command timed out");
2872 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2877 /* Parse and handle the return WMT event */
2878 wmt_evt = (struct btmtk_hci_wmt_evt *)data->evt_skb->data;
2879 if (wmt_evt->whdr.op != hdr->op) {
2880 bt_dev_err(hdev, "Wrong op received %d expected %d",
2881 wmt_evt->whdr.op, hdr->op);
2886 switch (wmt_evt->whdr.op) {
2887 case BTMTK_WMT_SEMAPHORE:
2888 if (wmt_evt->whdr.flag == 2)
2889 status = BTMTK_WMT_PATCH_UNDONE;
2891 status = BTMTK_WMT_PATCH_DONE;
2893 case BTMTK_WMT_FUNC_CTRL:
2894 wmt_evt_funcc = (struct btmtk_hci_wmt_evt_funcc *)wmt_evt;
2895 if (be16_to_cpu(wmt_evt_funcc->status) == 0x404)
2896 status = BTMTK_WMT_ON_DONE;
2897 else if (be16_to_cpu(wmt_evt_funcc->status) == 0x420)
2898 status = BTMTK_WMT_ON_PROGRESS;
2900 status = BTMTK_WMT_ON_UNDONE;
2902 case BTMTK_WMT_PATCH_DWNLD:
2903 if (wmt_evt->whdr.flag == 2)
2904 status = BTMTK_WMT_PATCH_DONE;
2905 else if (wmt_evt->whdr.flag == 1)
2906 status = BTMTK_WMT_PATCH_PROGRESS;
2908 status = BTMTK_WMT_PATCH_UNDONE;
2912 if (wmt_params->status)
2913 *wmt_params->status = status;
2916 kfree_skb(data->evt_skb);
2917 data->evt_skb = NULL;
2923 static int btusb_mtk_func_query(struct hci_dev *hdev)
2925 struct btmtk_hci_wmt_params wmt_params;
2929 /* Query whether the function is enabled */
2930 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
2931 wmt_params.flag = 4;
2932 wmt_params.dlen = sizeof(param);
2933 wmt_params.data = ¶m;
2934 wmt_params.status = &status;
2936 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2938 bt_dev_err(hdev, "Failed to query function status (%d)", err);
2945 static int btusb_mtk_uhw_reg_write(struct btusb_data *data, u32 reg, u32 val)
2947 struct hci_dev *hdev = data->hdev;
2951 buf = kzalloc(4, GFP_KERNEL);
2955 put_unaligned_le32(val, buf);
2957 pipe = usb_sndctrlpipe(data->udev, 0);
2958 err = usb_control_msg(data->udev, pipe, 0x02,
2960 reg >> 16, reg & 0xffff,
2961 buf, 4, USB_CTRL_SET_TIMEOUT);
2963 bt_dev_err(hdev, "Failed to write uhw reg(%d)", err);
2973 static int btusb_mtk_uhw_reg_read(struct btusb_data *data, u32 reg, u32 *val)
2975 struct hci_dev *hdev = data->hdev;
2979 buf = kzalloc(4, GFP_KERNEL);
2983 pipe = usb_rcvctrlpipe(data->udev, 0);
2984 err = usb_control_msg(data->udev, pipe, 0x01,
2986 reg >> 16, reg & 0xffff,
2987 buf, 4, USB_CTRL_SET_TIMEOUT);
2989 bt_dev_err(hdev, "Failed to read uhw reg(%d)", err);
2993 *val = get_unaligned_le32(buf);
2994 bt_dev_dbg(hdev, "reg=%x, value=0x%08x", reg, *val);
3002 static int btusb_mtk_reg_read(struct btusb_data *data, u32 reg, u32 *val)
3004 int pipe, err, size = sizeof(u32);
3007 buf = kzalloc(size, GFP_KERNEL);
3011 pipe = usb_rcvctrlpipe(data->udev, 0);
3012 err = usb_control_msg(data->udev, pipe, 0x63,
3013 USB_TYPE_VENDOR | USB_DIR_IN,
3014 reg >> 16, reg & 0xffff,
3015 buf, size, USB_CTRL_SET_TIMEOUT);
3019 *val = get_unaligned_le32(buf);
3027 static int btusb_mtk_id_get(struct btusb_data *data, u32 reg, u32 *id)
3029 return btusb_mtk_reg_read(data, reg, id);
3032 static int btusb_mtk_setup(struct hci_dev *hdev)
3034 struct btusb_data *data = hci_get_drvdata(hdev);
3035 struct btmtk_hci_wmt_params wmt_params;
3036 ktime_t calltime, delta, rettime;
3037 struct btmtk_tci_sleep tci_sleep;
3038 unsigned long long duration;
3039 struct sk_buff *skb;
3043 char fw_bin_name[64];
3047 calltime = ktime_get();
3049 err = btusb_mtk_id_get(data, 0x80000008, &dev_id);
3051 bt_dev_err(hdev, "Failed to get device id (%d)", err);
3056 err = btusb_mtk_id_get(data, 0x70010200, &dev_id);
3058 bt_dev_err(hdev, "Failed to get device id (%d)", err);
3061 err = btusb_mtk_id_get(data, 0x80021004, &fw_version);
3063 bt_dev_err(hdev, "Failed to get fw version (%d)", err);
3070 fwname = FIRMWARE_MT7663;
3073 fwname = FIRMWARE_MT7668;
3077 snprintf(fw_bin_name, sizeof(fw_bin_name),
3078 "mediatek/BT_RAM_CODE_MT%04x_1_%x_hdr.bin",
3079 dev_id & 0xffff, (fw_version & 0xff) + 1);
3080 err = btmtk_setup_firmware_79xx(hdev, fw_bin_name,
3081 btusb_mtk_hci_wmt_sync);
3083 bt_dev_err(hdev, "Failed to set up firmware (%d)", err);
3087 /* It's Device EndPoint Reset Option Register */
3088 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, MTK_EP_RST_IN_OUT_OPT);
3090 /* Enable Bluetooth protocol */
3092 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3093 wmt_params.flag = 0;
3094 wmt_params.dlen = sizeof(param);
3095 wmt_params.data = ¶m;
3096 wmt_params.status = NULL;
3098 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3100 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3104 hci_set_msft_opcode(hdev, 0xFD30);
3105 hci_set_aosp_capable(hdev);
3108 bt_dev_err(hdev, "Unsupported hardware variant (%08x)",
3113 /* Query whether the firmware is already download */
3114 wmt_params.op = BTMTK_WMT_SEMAPHORE;
3115 wmt_params.flag = 1;
3116 wmt_params.dlen = 0;
3117 wmt_params.data = NULL;
3118 wmt_params.status = &status;
3120 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3122 bt_dev_err(hdev, "Failed to query firmware status (%d)", err);
3126 if (status == BTMTK_WMT_PATCH_DONE) {
3127 bt_dev_info(hdev, "firmware already downloaded");
3128 goto ignore_setup_fw;
3131 /* Setup a firmware which the device definitely requires */
3132 err = btmtk_setup_firmware(hdev, fwname,
3133 btusb_mtk_hci_wmt_sync);
3138 err = readx_poll_timeout(btusb_mtk_func_query, hdev, status,
3139 status < 0 || status != BTMTK_WMT_ON_PROGRESS,
3141 /* -ETIMEDOUT happens */
3145 /* The other errors happen in btusb_mtk_func_query */
3149 if (status == BTMTK_WMT_ON_DONE) {
3150 bt_dev_info(hdev, "function already on");
3151 goto ignore_func_on;
3154 /* Enable Bluetooth protocol */
3156 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3157 wmt_params.flag = 0;
3158 wmt_params.dlen = sizeof(param);
3159 wmt_params.data = ¶m;
3160 wmt_params.status = NULL;
3162 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3164 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3169 /* Apply the low power environment setup */
3170 tci_sleep.mode = 0x5;
3171 tci_sleep.duration = cpu_to_le16(0x640);
3172 tci_sleep.host_duration = cpu_to_le16(0x640);
3173 tci_sleep.host_wakeup_pin = 0;
3174 tci_sleep.time_compensation = 0;
3176 skb = __hci_cmd_sync(hdev, 0xfc7a, sizeof(tci_sleep), &tci_sleep,
3180 bt_dev_err(hdev, "Failed to apply low power setting (%d)", err);
3186 rettime = ktime_get();
3187 delta = ktime_sub(rettime, calltime);
3188 duration = (unsigned long long)ktime_to_ns(delta) >> 10;
3190 bt_dev_info(hdev, "Device setup in %llu usecs", duration);
3195 static int btusb_mtk_shutdown(struct hci_dev *hdev)
3197 struct btmtk_hci_wmt_params wmt_params;
3201 /* Disable the device */
3202 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3203 wmt_params.flag = 0;
3204 wmt_params.dlen = sizeof(param);
3205 wmt_params.data = ¶m;
3206 wmt_params.status = NULL;
3208 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3210 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3217 static void btusb_mtk_cmd_timeout(struct hci_dev *hdev)
3219 struct btusb_data *data = hci_get_drvdata(hdev);
3223 /* It's MediaTek specific bluetooth reset mechanism via USB */
3224 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
3225 bt_dev_err(hdev, "last reset failed? Not resetting again");
3229 err = usb_autopm_get_interface(data->intf);
3233 btusb_stop_traffic(data);
3234 usb_kill_anchored_urbs(&data->tx_anchor);
3236 /* It's Device EndPoint Reset Option Register */
3237 bt_dev_dbg(hdev, "Initiating reset mechanism via uhw");
3238 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, MTK_EP_RST_IN_OUT_OPT);
3239 btusb_mtk_uhw_reg_read(data, MTK_BT_WDT_STATUS, &val);
3241 /* Reset the bluetooth chip via USB interface. */
3242 btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, 1);
3243 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT, 0x000000FF);
3244 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT, &val);
3245 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT1, 0x000000FF);
3246 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT1, &val);
3247 /* MT7921 need to delay 20ms between toggle reset bit */
3249 btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, 0);
3250 btusb_mtk_uhw_reg_read(data, MTK_BT_SUBSYS_RST, &val);
3252 /* Poll the register until reset is completed */
3254 btusb_mtk_uhw_reg_read(data, MTK_BT_MISC, &val);
3255 if (val & MTK_BT_RST_DONE) {
3256 bt_dev_dbg(hdev, "Bluetooth Reset Successfully");
3260 bt_dev_dbg(hdev, "Polling Bluetooth Reset CR");
3262 msleep(MTK_BT_RESET_WAIT_MS);
3263 } while (retry < MTK_BT_RESET_NUM_TRIES);
3265 btusb_mtk_id_get(data, 0x70010200, &val);
3267 bt_dev_err(hdev, "Can't get device id, subsys reset fail.");
3269 usb_queue_reset_device(data->intf);
3271 clear_bit(BTUSB_HW_RESET_ACTIVE, &data->flags);
3274 static int btusb_recv_acl_mtk(struct hci_dev *hdev, struct sk_buff *skb)
3276 struct btusb_data *data = hci_get_drvdata(hdev);
3277 u16 handle = le16_to_cpu(hci_acl_hdr(skb)->handle);
3280 case 0xfc6f: /* Firmware dump from device */
3281 /* When the firmware hangs, the device can no longer
3282 * suspend and thus disable auto-suspend.
3284 usb_disable_autosuspend(data->udev);
3286 case 0x05ff: /* Firmware debug logging 1 */
3287 case 0x05fe: /* Firmware debug logging 2 */
3288 return hci_recv_diag(hdev, skb);
3291 return hci_recv_frame(hdev, skb);
3295 /* Configure an out-of-band gpio as wake-up pin, if specified in device tree */
3296 static int marvell_config_oob_wake(struct hci_dev *hdev)
3298 struct sk_buff *skb;
3299 struct btusb_data *data = hci_get_drvdata(hdev);
3300 struct device *dev = &data->udev->dev;
3301 u16 pin, gap, opcode;
3305 /* Move on if no wakeup pin specified */
3306 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) ||
3307 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap))
3310 /* Vendor specific command to configure a GPIO as wake-up pin */
3311 opcode = hci_opcode_pack(0x3F, 0x59);
3312 cmd[0] = opcode & 0xFF;
3313 cmd[1] = opcode >> 8;
3314 cmd[2] = 2; /* length of parameters that follow */
3316 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */
3318 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
3320 bt_dev_err(hdev, "%s: No memory", __func__);
3324 skb_put_data(skb, cmd, sizeof(cmd));
3325 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT;
3327 ret = btusb_send_frame(hdev, skb);
3329 bt_dev_err(hdev, "%s: configuration failed", __func__);
3338 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
3339 const bdaddr_t *bdaddr)
3341 struct sk_buff *skb;
3346 buf[1] = sizeof(bdaddr_t);
3347 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
3349 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
3352 bt_dev_err(hdev, "changing Marvell device address failed (%ld)",
3361 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
3362 const bdaddr_t *bdaddr)
3364 struct sk_buff *skb;
3371 buf[3] = sizeof(bdaddr_t);
3372 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
3374 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
3377 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
3385 static int btusb_set_bdaddr_wcn6855(struct hci_dev *hdev,
3386 const bdaddr_t *bdaddr)
3388 struct sk_buff *skb;
3392 memcpy(buf, bdaddr, sizeof(bdaddr_t));
3394 skb = __hci_cmd_sync_ev(hdev, 0xfc14, sizeof(buf), buf,
3395 HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT);
3398 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
3406 #define QCA_MEMDUMP_ACL_HANDLE 0x2EDD
3407 #define QCA_MEMDUMP_SIZE_MAX 0x100000
3408 #define QCA_MEMDUMP_VSE_CLASS 0x01
3409 #define QCA_MEMDUMP_MSG_TYPE 0x08
3410 #define QCA_MEMDUMP_PKT_SIZE 248
3411 #define QCA_LAST_SEQUENCE_NUM 0xffff
3413 struct qca_dump_hdr {
3421 __le32 ram_dump_size;
3428 static void btusb_dump_hdr_qca(struct hci_dev *hdev, struct sk_buff *skb)
3431 struct btusb_data *btdata = hci_get_drvdata(hdev);
3433 snprintf(buf, sizeof(buf), "Controller Name: 0x%x\n",
3434 btdata->qca_dump.controller_id);
3435 skb_put_data(skb, buf, strlen(buf));
3437 snprintf(buf, sizeof(buf), "Firmware Version: 0x%x\n",
3438 btdata->qca_dump.fw_version);
3439 skb_put_data(skb, buf, strlen(buf));
3441 snprintf(buf, sizeof(buf), "Driver: %s\nVendor: qca\n",
3443 skb_put_data(skb, buf, strlen(buf));
3445 snprintf(buf, sizeof(buf), "VID: 0x%x\nPID:0x%x\n",
3446 btdata->qca_dump.id_vendor, btdata->qca_dump.id_product);
3447 skb_put_data(skb, buf, strlen(buf));
3449 snprintf(buf, sizeof(buf), "Lmp Subversion: 0x%x\n",
3451 skb_put_data(skb, buf, strlen(buf));
3454 static void btusb_coredump_qca(struct hci_dev *hdev)
3456 static const u8 param[] = { 0x26 };
3457 struct sk_buff *skb;
3459 skb = __hci_cmd_sync(hdev, 0xfc0c, 1, param, HCI_CMD_TIMEOUT);
3461 bt_dev_err(hdev, "%s: triggle crash failed (%ld)", __func__, PTR_ERR(skb));
3466 * ==0: not a dump pkt.
3467 * < 0: fails to handle a dump pkt
3470 static int handle_dump_pkt_qca(struct hci_dev *hdev, struct sk_buff *skb)
3475 unsigned int sk_len;
3479 struct hci_event_hdr *event_hdr;
3480 struct hci_acl_hdr *acl_hdr;
3481 struct qca_dump_hdr *dump_hdr;
3482 struct btusb_data *btdata = hci_get_drvdata(hdev);
3483 struct usb_device *udev = btdata->udev;
3485 pkt_type = hci_skb_pkt_type(skb);
3489 if (pkt_type == HCI_ACLDATA_PKT) {
3490 acl_hdr = hci_acl_hdr(skb);
3491 if (le16_to_cpu(acl_hdr->handle) != QCA_MEMDUMP_ACL_HANDLE)
3493 sk_ptr += HCI_ACL_HDR_SIZE;
3494 sk_len -= HCI_ACL_HDR_SIZE;
3495 event_hdr = (struct hci_event_hdr *)sk_ptr;
3497 event_hdr = hci_event_hdr(skb);
3500 if ((event_hdr->evt != HCI_VENDOR_PKT)
3501 || (event_hdr->plen != (sk_len - HCI_EVENT_HDR_SIZE)))
3504 sk_ptr += HCI_EVENT_HDR_SIZE;
3505 sk_len -= HCI_EVENT_HDR_SIZE;
3507 dump_hdr = (struct qca_dump_hdr *)sk_ptr;
3508 if ((sk_len < offsetof(struct qca_dump_hdr, data))
3509 || (dump_hdr->vse_class != QCA_MEMDUMP_VSE_CLASS)
3510 || (dump_hdr->msg_type != QCA_MEMDUMP_MSG_TYPE))
3513 /*it is dump pkt now*/
3514 seqno = le16_to_cpu(dump_hdr->seqno);
3516 set_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags);
3517 dump_size = le32_to_cpu(dump_hdr->ram_dump_size);
3518 if (!dump_size || (dump_size > QCA_MEMDUMP_SIZE_MAX)) {
3520 bt_dev_err(hdev, "Invalid memdump size(%u)",
3525 ret = hci_devcd_init(hdev, dump_size);
3527 bt_dev_err(hdev, "memdump init error(%d)", ret);
3531 btdata->qca_dump.ram_dump_size = dump_size;
3532 btdata->qca_dump.ram_dump_seqno = 0;
3533 sk_ptr += offsetof(struct qca_dump_hdr, data0);
3534 sk_len -= offsetof(struct qca_dump_hdr, data0);
3536 usb_disable_autosuspend(udev);
3537 bt_dev_info(hdev, "%s memdump size(%u)\n",
3538 (pkt_type == HCI_ACLDATA_PKT) ? "ACL" : "event",
3541 sk_ptr += offsetof(struct qca_dump_hdr, data);
3542 sk_len -= offsetof(struct qca_dump_hdr, data);
3545 if (!btdata->qca_dump.ram_dump_size) {
3547 bt_dev_err(hdev, "memdump is not active");
3551 if ((seqno > btdata->qca_dump.ram_dump_seqno + 1) && (seqno != QCA_LAST_SEQUENCE_NUM)) {
3552 dump_size = QCA_MEMDUMP_PKT_SIZE * (seqno - btdata->qca_dump.ram_dump_seqno - 1);
3553 hci_devcd_append_pattern(hdev, 0x0, dump_size);
3555 "expected memdump seqno(%u) is not received(%u)\n",
3556 btdata->qca_dump.ram_dump_seqno, seqno);
3557 btdata->qca_dump.ram_dump_seqno = seqno;
3562 skb_pull(skb, skb->len - sk_len);
3563 hci_devcd_append(hdev, skb);
3564 btdata->qca_dump.ram_dump_seqno++;
3565 if (seqno == QCA_LAST_SEQUENCE_NUM) {
3567 "memdump done: pkts(%u), total(%u)\n",
3568 btdata->qca_dump.ram_dump_seqno, btdata->qca_dump.ram_dump_size);
3570 hci_devcd_complete(hdev);
3576 if (btdata->qca_dump.ram_dump_size)
3577 usb_enable_autosuspend(udev);
3578 btdata->qca_dump.ram_dump_size = 0;
3579 btdata->qca_dump.ram_dump_seqno = 0;
3580 clear_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags);
3587 static int btusb_recv_acl_qca(struct hci_dev *hdev, struct sk_buff *skb)
3589 if (handle_dump_pkt_qca(hdev, skb))
3591 return hci_recv_frame(hdev, skb);
3594 static int btusb_recv_evt_qca(struct hci_dev *hdev, struct sk_buff *skb)
3596 if (handle_dump_pkt_qca(hdev, skb))
3598 return hci_recv_frame(hdev, skb);
3602 #define QCA_DFU_PACKET_LEN 4096
3604 #define QCA_GET_TARGET_VERSION 0x09
3605 #define QCA_CHECK_STATUS 0x05
3606 #define QCA_DFU_DOWNLOAD 0x01
3608 #define QCA_SYSCFG_UPDATED 0x40
3609 #define QCA_PATCH_UPDATED 0x80
3610 #define QCA_DFU_TIMEOUT 3000
3611 #define QCA_FLAG_MULTI_NVM 0x80
3612 #define QCA_BT_RESET_WAIT_MS 100
3614 #define WCN6855_2_0_RAM_VERSION_GF 0x400c1200
3615 #define WCN6855_2_1_RAM_VERSION_GF 0x400c1211
3617 struct qca_version {
3619 __le32 patch_version;
3627 struct qca_rampatch_version {
3628 __le16 rom_version_high;
3629 __le16 rom_version_low;
3630 __le16 patch_version;
3633 struct qca_device_info {
3635 u8 rampatch_hdr; /* length of header in rampatch */
3636 u8 nvm_hdr; /* length of header in NVM */
3637 u8 ver_offset; /* offset of version structure in rampatch */
3640 static const struct qca_device_info qca_devices_table[] = {
3641 { 0x00000100, 20, 4, 8 }, /* Rome 1.0 */
3642 { 0x00000101, 20, 4, 8 }, /* Rome 1.1 */
3643 { 0x00000200, 28, 4, 16 }, /* Rome 2.0 */
3644 { 0x00000201, 28, 4, 16 }, /* Rome 2.1 */
3645 { 0x00000300, 28, 4, 16 }, /* Rome 3.0 */
3646 { 0x00000302, 28, 4, 16 }, /* Rome 3.2 */
3647 { 0x00130100, 40, 4, 16 }, /* WCN6855 1.0 */
3648 { 0x00130200, 40, 4, 16 }, /* WCN6855 2.0 */
3649 { 0x00130201, 40, 4, 16 }, /* WCN6855 2.1 */
3650 { 0x00190200, 40, 4, 16 }, /* WCN785x 2.0 */
3653 static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request,
3654 void *data, u16 size)
3659 buf = kmalloc(size, GFP_KERNEL);
3663 /* Found some of USB hosts have IOT issues with ours so that we should
3664 * not wait until HCI layer is ready.
3666 pipe = usb_rcvctrlpipe(udev, 0);
3667 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
3668 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
3670 dev_err(&udev->dev, "Failed to access otp area (%d)", err);
3674 memcpy(data, buf, size);
3682 static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
3683 const struct firmware *firmware,
3686 struct btusb_data *btdata = hci_get_drvdata(hdev);
3687 struct usb_device *udev = btdata->udev;
3688 size_t count, size, sent = 0;
3692 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
3696 count = firmware->size;
3698 size = min_t(size_t, count, hdr_size);
3699 memcpy(buf, firmware->data, size);
3701 /* USB patches should go down to controller through USB path
3702 * because binary format fits to go down through USB channel.
3703 * USB control path is for patching headers and USB bulk is for
3706 pipe = usb_sndctrlpipe(udev, 0);
3707 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
3708 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
3710 bt_dev_err(hdev, "Failed to send headers (%d)", err);
3717 /* ep2 need time to switch from function acl to function dfu,
3718 * so we add 20ms delay here.
3723 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
3725 memcpy(buf, firmware->data + sent, size);
3727 pipe = usb_sndbulkpipe(udev, 0x02);
3728 err = usb_bulk_msg(udev, pipe, buf, size, &len,
3731 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)",
3732 sent, firmware->size, err);
3737 bt_dev_err(hdev, "Failed to get bulk buffer");
3751 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
3752 struct qca_version *ver,
3753 const struct qca_device_info *info)
3755 struct qca_rampatch_version *rver;
3756 const struct firmware *fw;
3757 u32 ver_rom, ver_patch, rver_rom;
3758 u16 rver_rom_low, rver_rom_high, rver_patch;
3762 ver_rom = le32_to_cpu(ver->rom_version);
3763 ver_patch = le32_to_cpu(ver->patch_version);
3765 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom);
3767 err = request_firmware(&fw, fwname, &hdev->dev);
3769 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)",
3774 bt_dev_info(hdev, "using rampatch file: %s", fwname);
3776 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
3777 rver_rom_low = le16_to_cpu(rver->rom_version_low);
3778 rver_patch = le16_to_cpu(rver->patch_version);
3780 if (ver_rom & ~0xffffU) {
3781 rver_rom_high = le16_to_cpu(rver->rom_version_high);
3782 rver_rom = rver_rom_high << 16 | rver_rom_low;
3784 rver_rom = rver_rom_low;
3787 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, "
3788 "firmware rome 0x%x build 0x%x",
3789 rver_rom, rver_patch, ver_rom, ver_patch);
3791 if (rver_rom != ver_rom || rver_patch <= ver_patch) {
3792 bt_dev_err(hdev, "rampatch file version did not match with firmware");
3797 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
3800 release_firmware(fw);
3805 static void btusb_generate_qca_nvm_name(char *fwname, size_t max_size,
3806 const struct qca_version *ver)
3808 u32 rom_version = le32_to_cpu(ver->rom_version);
3809 u16 flag = le16_to_cpu(ver->flag);
3811 if (((flag >> 8) & 0xff) == QCA_FLAG_MULTI_NVM) {
3812 /* The board_id should be split into two bytes
3813 * The 1st byte is chip ID, and the 2nd byte is platform ID
3814 * For example, board ID 0x010A, 0x01 is platform ID. 0x0A is chip ID
3815 * we have several platforms, and platform IDs are continuously added
3817 * 0x00 is for Mobile
3819 * 0x02 is for Automotive
3820 * 0x03 is for Consumer electronic
3822 u16 board_id = (ver->chip_id << 8) + ver->platform_id;
3823 const char *variant;
3825 switch (le32_to_cpu(ver->ram_version)) {
3826 case WCN6855_2_0_RAM_VERSION_GF:
3827 case WCN6855_2_1_RAM_VERSION_GF:
3835 if (board_id == 0) {
3836 snprintf(fwname, max_size, "qca/nvm_usb_%08x%s.bin",
3837 rom_version, variant);
3839 snprintf(fwname, max_size, "qca/nvm_usb_%08x%s_%04x.bin",
3840 rom_version, variant, board_id);
3843 snprintf(fwname, max_size, "qca/nvm_usb_%08x.bin",
3849 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
3850 struct qca_version *ver,
3851 const struct qca_device_info *info)
3853 const struct firmware *fw;
3857 btusb_generate_qca_nvm_name(fwname, sizeof(fwname), ver);
3859 err = request_firmware(&fw, fwname, &hdev->dev);
3861 bt_dev_err(hdev, "failed to request NVM file: %s (%d)",
3866 bt_dev_info(hdev, "using NVM file: %s", fwname);
3868 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
3870 release_firmware(fw);
3875 /* identify the ROM version and check whether patches are needed */
3876 static bool btusb_qca_need_patch(struct usb_device *udev)
3878 struct qca_version ver;
3880 if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3883 /* only low ROM versions need patches */
3884 return !(le32_to_cpu(ver.rom_version) & ~0xffffU);
3887 static int btusb_setup_qca(struct hci_dev *hdev)
3889 struct btusb_data *btdata = hci_get_drvdata(hdev);
3890 struct usb_device *udev = btdata->udev;
3891 const struct qca_device_info *info = NULL;
3892 struct qca_version ver;
3897 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3902 ver_rom = le32_to_cpu(ver.rom_version);
3904 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
3905 if (ver_rom == qca_devices_table[i].rom_version)
3906 info = &qca_devices_table[i];
3909 /* If the rom_version is not matched in the qca_devices_table
3910 * and the high ROM version is not zero, we assume this chip no
3911 * need to load the rampatch and nvm.
3913 if (ver_rom & ~0xffffU)
3916 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom);
3920 err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status,
3925 if (!(status & QCA_PATCH_UPDATED)) {
3926 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
3931 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3936 btdata->qca_dump.fw_version = le32_to_cpu(ver.patch_version);
3937 btdata->qca_dump.controller_id = le32_to_cpu(ver.rom_version);
3939 if (!(status & QCA_SYSCFG_UPDATED)) {
3940 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
3944 /* WCN6855 2.1 and later will reset to apply firmware downloaded here, so
3945 * wait ~100ms for reset Done then go ahead, otherwise, it maybe
3946 * cause potential enable failure.
3948 if (info->rom_version >= 0x00130201)
3949 msleep(QCA_BT_RESET_WAIT_MS);
3952 /* Mark HCI_OP_ENHANCED_SETUP_SYNC_CONN as broken as it doesn't seem to
3953 * work with the likes of HSP/HFP mSBC.
3955 set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks);
3960 static inline int __set_diag_interface(struct hci_dev *hdev)
3962 struct btusb_data *data = hci_get_drvdata(hdev);
3963 struct usb_interface *intf = data->diag;
3969 data->diag_tx_ep = NULL;
3970 data->diag_rx_ep = NULL;
3972 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
3973 struct usb_endpoint_descriptor *ep_desc;
3975 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
3977 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
3978 data->diag_tx_ep = ep_desc;
3982 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
3983 data->diag_rx_ep = ep_desc;
3988 if (!data->diag_tx_ep || !data->diag_rx_ep) {
3989 bt_dev_err(hdev, "invalid diagnostic descriptors");
3996 static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable)
3998 struct btusb_data *data = hci_get_drvdata(hdev);
3999 struct sk_buff *skb;
4003 if (!data->diag_tx_ep)
4004 return ERR_PTR(-ENODEV);
4006 urb = usb_alloc_urb(0, GFP_KERNEL);
4008 return ERR_PTR(-ENOMEM);
4010 skb = bt_skb_alloc(2, GFP_KERNEL);
4013 return ERR_PTR(-ENOMEM);
4016 skb_put_u8(skb, 0xf0);
4017 skb_put_u8(skb, enable);
4019 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress);
4021 usb_fill_bulk_urb(urb, data->udev, pipe,
4022 skb->data, skb->len, btusb_tx_complete, skb);
4024 skb->dev = (void *)hdev;
4029 static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable)
4031 struct btusb_data *data = hci_get_drvdata(hdev);
4037 if (!test_bit(HCI_RUNNING, &hdev->flags))
4040 urb = alloc_diag_urb(hdev, enable);
4042 return PTR_ERR(urb);
4044 return submit_or_queue_tx_urb(hdev, urb);
4048 static irqreturn_t btusb_oob_wake_handler(int irq, void *priv)
4050 struct btusb_data *data = priv;
4052 pm_wakeup_event(&data->udev->dev, 0);
4055 /* Disable only if not already disabled (keep it balanced) */
4056 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
4057 disable_irq_nosync(irq);
4058 disable_irq_wake(irq);
4063 static const struct of_device_id btusb_match_table[] = {
4064 { .compatible = "usb1286,204e" },
4065 { .compatible = "usbcf3,e300" }, /* QCA6174A */
4066 { .compatible = "usb4ca,301a" }, /* QCA6174A (Lite-On) */
4069 MODULE_DEVICE_TABLE(of, btusb_match_table);
4071 /* Use an oob wakeup pin? */
4072 static int btusb_config_oob_wake(struct hci_dev *hdev)
4074 struct btusb_data *data = hci_get_drvdata(hdev);
4075 struct device *dev = &data->udev->dev;
4078 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
4080 if (!of_match_device(btusb_match_table, dev))
4083 /* Move on if no IRQ specified */
4084 irq = of_irq_get_byname(dev->of_node, "wakeup");
4086 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__);
4090 irq_set_status_flags(irq, IRQ_NOAUTOEN);
4091 ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler,
4092 0, "OOB Wake-on-BT", data);
4094 bt_dev_err(hdev, "%s: IRQ request failed", __func__);
4098 ret = device_init_wakeup(dev, true);
4100 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__);
4104 data->oob_wake_irq = irq;
4105 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq);
4110 static void btusb_check_needs_reset_resume(struct usb_interface *intf)
4112 if (dmi_check_system(btusb_needs_reset_resume_table))
4113 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
4116 static bool btusb_wakeup(struct hci_dev *hdev)
4118 struct btusb_data *data = hci_get_drvdata(hdev);
4120 return device_may_wakeup(&data->udev->dev);
4123 static int btusb_shutdown_qca(struct hci_dev *hdev)
4125 struct sk_buff *skb;
4127 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
4129 bt_dev_err(hdev, "HCI reset during shutdown failed");
4130 return PTR_ERR(skb);
4137 static ssize_t force_poll_sync_read(struct file *file, char __user *user_buf,
4138 size_t count, loff_t *ppos)
4140 struct btusb_data *data = file->private_data;
4143 buf[0] = data->poll_sync ? 'Y' : 'N';
4146 return simple_read_from_buffer(user_buf, count, ppos, buf, 2);
4149 static ssize_t force_poll_sync_write(struct file *file,
4150 const char __user *user_buf,
4151 size_t count, loff_t *ppos)
4153 struct btusb_data *data = file->private_data;
4157 err = kstrtobool_from_user(user_buf, count, &enable);
4161 /* Only allow changes while the adapter is down */
4162 if (test_bit(HCI_UP, &data->hdev->flags))
4165 if (data->poll_sync == enable)
4168 data->poll_sync = enable;
4173 static const struct file_operations force_poll_sync_fops = {
4174 .open = simple_open,
4175 .read = force_poll_sync_read,
4176 .write = force_poll_sync_write,
4177 .llseek = default_llseek,
4180 static int btusb_probe(struct usb_interface *intf,
4181 const struct usb_device_id *id)
4183 struct usb_endpoint_descriptor *ep_desc;
4184 struct gpio_desc *reset_gpio;
4185 struct btusb_data *data;
4186 struct hci_dev *hdev;
4187 unsigned ifnum_base;
4188 int i, err, priv_size;
4190 BT_DBG("intf %p id %p", intf, id);
4192 if ((id->driver_info & BTUSB_IFNUM_2) &&
4193 (intf->cur_altsetting->desc.bInterfaceNumber != 0) &&
4194 (intf->cur_altsetting->desc.bInterfaceNumber != 2))
4197 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber;
4199 if (!id->driver_info) {
4200 const struct usb_device_id *match;
4202 match = usb_match_id(intf, blacklist_table);
4207 if (id->driver_info == BTUSB_IGNORE)
4210 if (id->driver_info & BTUSB_ATH3012) {
4211 struct usb_device *udev = interface_to_usbdev(intf);
4213 /* Old firmware would otherwise let ath3k driver load
4214 * patch and sysconfig files
4216 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 &&
4217 !btusb_qca_need_patch(udev))
4221 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
4225 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
4226 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
4228 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
4229 data->intr_ep = ep_desc;
4233 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
4234 data->bulk_tx_ep = ep_desc;
4238 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
4239 data->bulk_rx_ep = ep_desc;
4244 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
4247 if (id->driver_info & BTUSB_AMP) {
4248 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
4249 data->cmdreq = 0x2b;
4251 data->cmdreq_type = USB_TYPE_CLASS;
4252 data->cmdreq = 0x00;
4255 data->udev = interface_to_usbdev(intf);
4258 INIT_WORK(&data->work, btusb_work);
4259 INIT_WORK(&data->waker, btusb_waker);
4260 INIT_DELAYED_WORK(&data->rx_work, btusb_rx_work);
4262 skb_queue_head_init(&data->acl_q);
4264 init_usb_anchor(&data->deferred);
4265 init_usb_anchor(&data->tx_anchor);
4266 spin_lock_init(&data->txlock);
4268 init_usb_anchor(&data->intr_anchor);
4269 init_usb_anchor(&data->bulk_anchor);
4270 init_usb_anchor(&data->isoc_anchor);
4271 init_usb_anchor(&data->diag_anchor);
4272 init_usb_anchor(&data->ctrl_anchor);
4273 spin_lock_init(&data->rxlock);
4277 data->recv_event = hci_recv_frame;
4278 data->recv_bulk = btusb_recv_bulk;
4280 if (id->driver_info & BTUSB_INTEL_COMBINED) {
4281 /* Allocate extra space for Intel device */
4282 priv_size += sizeof(struct btintel_data);
4284 /* Override the rx handlers */
4285 data->recv_event = btusb_recv_event_intel;
4286 data->recv_bulk = btusb_recv_bulk_intel;
4287 } else if (id->driver_info & BTUSB_REALTEK) {
4288 /* Allocate extra space for Realtek device */
4289 priv_size += sizeof(struct btrealtek_data);
4291 data->recv_event = btusb_recv_event_realtek;
4294 data->recv_acl = hci_recv_frame;
4296 hdev = hci_alloc_dev_priv(priv_size);
4300 hdev->bus = HCI_USB;
4301 hci_set_drvdata(hdev, data);
4303 if (id->driver_info & BTUSB_AMP)
4304 hdev->dev_type = HCI_AMP;
4306 hdev->dev_type = HCI_PRIMARY;
4310 SET_HCIDEV_DEV(hdev, &intf->dev);
4312 reset_gpio = gpiod_get_optional(&data->udev->dev, "reset",
4314 if (IS_ERR(reset_gpio)) {
4315 err = PTR_ERR(reset_gpio);
4317 } else if (reset_gpio) {
4318 data->reset_gpio = reset_gpio;
4321 hdev->open = btusb_open;
4322 hdev->close = btusb_close;
4323 hdev->flush = btusb_flush;
4324 hdev->send = btusb_send_frame;
4325 hdev->notify = btusb_notify;
4326 hdev->wakeup = btusb_wakeup;
4329 err = btusb_config_oob_wake(hdev);
4333 /* Marvell devices may need a specific chip configuration */
4334 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) {
4335 err = marvell_config_oob_wake(hdev);
4340 if (id->driver_info & BTUSB_CW6622)
4341 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
4343 if (id->driver_info & BTUSB_BCM2045)
4344 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
4346 if (id->driver_info & BTUSB_BCM92035)
4347 hdev->setup = btusb_setup_bcm92035;
4349 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
4350 (id->driver_info & BTUSB_BCM_PATCHRAM)) {
4351 hdev->manufacturer = 15;
4352 hdev->setup = btbcm_setup_patchram;
4353 hdev->set_diag = btusb_bcm_set_diag;
4354 hdev->set_bdaddr = btbcm_set_bdaddr;
4356 /* Broadcom LM_DIAG Interface numbers are hardcoded */
4357 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
4360 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
4361 (id->driver_info & BTUSB_BCM_APPLE)) {
4362 hdev->manufacturer = 15;
4363 hdev->setup = btbcm_setup_apple;
4364 hdev->set_diag = btusb_bcm_set_diag;
4366 /* Broadcom LM_DIAG Interface numbers are hardcoded */
4367 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
4370 /* Combined Intel Device setup to support multiple setup routine */
4371 if (id->driver_info & BTUSB_INTEL_COMBINED) {
4372 err = btintel_configure_setup(hdev, btusb_driver.name);
4376 /* Transport specific configuration */
4377 hdev->send = btusb_send_frame_intel;
4378 hdev->cmd_timeout = btusb_intel_cmd_timeout;
4380 if (id->driver_info & BTUSB_INTEL_NO_WBS_SUPPORT)
4381 btintel_set_flag(hdev, INTEL_ROM_LEGACY_NO_WBS_SUPPORT);
4383 if (id->driver_info & BTUSB_INTEL_BROKEN_INITIAL_NCMD)
4384 btintel_set_flag(hdev, INTEL_BROKEN_INITIAL_NCMD);
4386 if (id->driver_info & BTUSB_INTEL_BROKEN_SHUTDOWN_LED)
4387 btintel_set_flag(hdev, INTEL_BROKEN_SHUTDOWN_LED);
4390 if (id->driver_info & BTUSB_MARVELL)
4391 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
4393 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_MTK) &&
4394 (id->driver_info & BTUSB_MEDIATEK)) {
4395 hdev->setup = btusb_mtk_setup;
4396 hdev->shutdown = btusb_mtk_shutdown;
4397 hdev->manufacturer = 70;
4398 hdev->cmd_timeout = btusb_mtk_cmd_timeout;
4399 hdev->set_bdaddr = btmtk_set_bdaddr;
4400 set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks);
4401 set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
4402 data->recv_acl = btusb_recv_acl_mtk;
4405 if (id->driver_info & BTUSB_SWAVE) {
4406 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
4407 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
4410 if (id->driver_info & BTUSB_INTEL_BOOT) {
4411 hdev->manufacturer = 2;
4412 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
4415 if (id->driver_info & BTUSB_ATH3012) {
4416 data->setup_on_usb = btusb_setup_qca;
4417 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
4418 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4419 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
4422 if (id->driver_info & BTUSB_QCA_ROME) {
4423 data->setup_on_usb = btusb_setup_qca;
4424 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
4425 hdev->cmd_timeout = btusb_qca_cmd_timeout;
4426 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4427 btusb_check_needs_reset_resume(intf);
4430 if (id->driver_info & BTUSB_QCA_WCN6855) {
4431 data->qca_dump.id_vendor = id->idVendor;
4432 data->qca_dump.id_product = id->idProduct;
4433 data->recv_event = btusb_recv_evt_qca;
4434 data->recv_acl = btusb_recv_acl_qca;
4435 hci_devcd_register(hdev, btusb_coredump_qca, btusb_dump_hdr_qca, NULL);
4436 data->setup_on_usb = btusb_setup_qca;
4437 hdev->shutdown = btusb_shutdown_qca;
4438 hdev->set_bdaddr = btusb_set_bdaddr_wcn6855;
4439 hdev->cmd_timeout = btusb_qca_cmd_timeout;
4440 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4441 hci_set_msft_opcode(hdev, 0xFD70);
4444 if (id->driver_info & BTUSB_AMP) {
4445 /* AMP controllers do not support SCO packets */
4448 /* Interface orders are hardcoded in the specification */
4449 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1);
4450 data->isoc_ifnum = ifnum_base + 1;
4453 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_RTL) &&
4454 (id->driver_info & BTUSB_REALTEK)) {
4455 btrtl_set_driver_name(hdev, btusb_driver.name);
4456 hdev->setup = btusb_setup_realtek;
4457 hdev->shutdown = btrtl_shutdown_realtek;
4458 hdev->cmd_timeout = btusb_rtl_cmd_timeout;
4459 hdev->hw_error = btusb_rtl_hw_error;
4461 /* Realtek devices need to set remote wakeup on auto-suspend */
4462 set_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags);
4463 set_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags);
4466 if (id->driver_info & BTUSB_ACTIONS_SEMI) {
4467 /* Support is advertised, but not implemented */
4468 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks);
4469 set_bit(HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER, &hdev->quirks);
4470 set_bit(HCI_QUIRK_BROKEN_SET_RPA_TIMEOUT, &hdev->quirks);
4471 set_bit(HCI_QUIRK_BROKEN_EXT_SCAN, &hdev->quirks);
4475 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
4477 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
4478 if (!disable_scofix)
4479 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
4482 if (id->driver_info & BTUSB_BROKEN_ISOC)
4485 if (id->driver_info & BTUSB_WIDEBAND_SPEECH)
4486 set_bit(HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED, &hdev->quirks);
4488 if (id->driver_info & BTUSB_VALID_LE_STATES)
4489 set_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks);
4491 if (id->driver_info & BTUSB_DIGIANSWER) {
4492 data->cmdreq_type = USB_TYPE_VENDOR;
4493 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
4496 if (id->driver_info & BTUSB_CSR) {
4497 struct usb_device *udev = data->udev;
4498 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
4500 /* Old firmware would otherwise execute USB reset */
4501 if (bcdDevice < 0x117)
4502 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
4504 /* This must be set first in case we disable it for fakes */
4505 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4507 /* Fake CSR devices with broken commands */
4508 if (le16_to_cpu(udev->descriptor.idVendor) == 0x0a12 &&
4509 le16_to_cpu(udev->descriptor.idProduct) == 0x0001)
4510 hdev->setup = btusb_setup_csr;
4513 if (id->driver_info & BTUSB_SNIFFER) {
4514 struct usb_device *udev = data->udev;
4516 /* New sniffer firmware has crippled HCI interface */
4517 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
4518 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
4521 if (id->driver_info & BTUSB_INTEL_BOOT) {
4522 /* A bug in the bootloader causes that interrupt interface is
4523 * only enabled after receiving SetInterface(0, AltSetting=0).
4525 err = usb_set_interface(data->udev, 0, 0);
4527 BT_ERR("failed to set interface 0, alt 0 %d", err);
4533 err = usb_driver_claim_interface(&btusb_driver,
4539 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && data->diag) {
4540 if (!usb_driver_claim_interface(&btusb_driver,
4542 __set_diag_interface(hdev);
4547 if (enable_autosuspend)
4548 usb_enable_autosuspend(data->udev);
4550 data->poll_sync = enable_poll_sync;
4552 err = hci_register_dev(hdev);
4556 usb_set_intfdata(intf, data);
4558 debugfs_create_file("force_poll_sync", 0644, hdev->debugfs, data,
4559 &force_poll_sync_fops);
4564 if (data->reset_gpio)
4565 gpiod_put(data->reset_gpio);
4570 static void btusb_disconnect(struct usb_interface *intf)
4572 struct btusb_data *data = usb_get_intfdata(intf);
4573 struct hci_dev *hdev;
4575 BT_DBG("intf %p", intf);
4581 usb_set_intfdata(data->intf, NULL);
4584 usb_set_intfdata(data->isoc, NULL);
4587 usb_set_intfdata(data->diag, NULL);
4589 hci_unregister_dev(hdev);
4591 if (intf == data->intf) {
4593 usb_driver_release_interface(&btusb_driver, data->isoc);
4595 usb_driver_release_interface(&btusb_driver, data->diag);
4596 } else if (intf == data->isoc) {
4598 usb_driver_release_interface(&btusb_driver, data->diag);
4599 usb_driver_release_interface(&btusb_driver, data->intf);
4600 } else if (intf == data->diag) {
4601 usb_driver_release_interface(&btusb_driver, data->intf);
4603 usb_driver_release_interface(&btusb_driver, data->isoc);
4606 if (data->oob_wake_irq)
4607 device_init_wakeup(&data->udev->dev, false);
4609 if (data->reset_gpio)
4610 gpiod_put(data->reset_gpio);
4616 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
4618 struct btusb_data *data = usb_get_intfdata(intf);
4620 BT_DBG("intf %p", intf);
4622 if (data->suspend_count++)
4625 spin_lock_irq(&data->txlock);
4626 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
4627 set_bit(BTUSB_SUSPENDING, &data->flags);
4628 spin_unlock_irq(&data->txlock);
4630 spin_unlock_irq(&data->txlock);
4631 data->suspend_count--;
4635 cancel_work_sync(&data->work);
4637 btusb_stop_traffic(data);
4638 usb_kill_anchored_urbs(&data->tx_anchor);
4640 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) {
4641 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
4642 enable_irq_wake(data->oob_wake_irq);
4643 enable_irq(data->oob_wake_irq);
4646 /* For global suspend, Realtek devices lose the loaded fw
4647 * in them. But for autosuspend, firmware should remain.
4648 * Actually, it depends on whether the usb host sends
4649 * set feature (enable wakeup) or not.
4651 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) {
4652 if (PMSG_IS_AUTO(message) &&
4653 device_can_wakeup(&data->udev->dev))
4654 data->udev->do_remote_wakeup = 1;
4655 else if (!PMSG_IS_AUTO(message) &&
4656 !device_may_wakeup(&data->udev->dev)) {
4657 data->udev->do_remote_wakeup = 0;
4658 data->udev->reset_resume = 1;
4665 static void play_deferred(struct btusb_data *data)
4670 while ((urb = usb_get_from_anchor(&data->deferred))) {
4671 usb_anchor_urb(urb, &data->tx_anchor);
4673 err = usb_submit_urb(urb, GFP_ATOMIC);
4675 if (err != -EPERM && err != -ENODEV)
4676 BT_ERR("%s urb %p submission failed (%d)",
4677 data->hdev->name, urb, -err);
4678 kfree(urb->setup_packet);
4679 usb_unanchor_urb(urb);
4684 data->tx_in_flight++;
4688 /* Cleanup the rest deferred urbs. */
4689 while ((urb = usb_get_from_anchor(&data->deferred))) {
4690 kfree(urb->setup_packet);
4695 static int btusb_resume(struct usb_interface *intf)
4697 struct btusb_data *data = usb_get_intfdata(intf);
4698 struct hci_dev *hdev = data->hdev;
4701 BT_DBG("intf %p", intf);
4703 if (--data->suspend_count)
4706 /* Disable only if not already disabled (keep it balanced) */
4707 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
4708 disable_irq(data->oob_wake_irq);
4709 disable_irq_wake(data->oob_wake_irq);
4712 if (!test_bit(HCI_RUNNING, &hdev->flags))
4715 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
4716 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
4718 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
4723 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
4724 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
4726 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
4730 btusb_submit_bulk_urb(hdev, GFP_NOIO);
4733 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
4734 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
4735 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
4737 btusb_submit_isoc_urb(hdev, GFP_NOIO);
4740 spin_lock_irq(&data->txlock);
4741 play_deferred(data);
4742 clear_bit(BTUSB_SUSPENDING, &data->flags);
4743 spin_unlock_irq(&data->txlock);
4744 schedule_work(&data->work);
4749 usb_scuttle_anchored_urbs(&data->deferred);
4751 spin_lock_irq(&data->txlock);
4752 clear_bit(BTUSB_SUSPENDING, &data->flags);
4753 spin_unlock_irq(&data->txlock);
4759 #ifdef CONFIG_DEV_COREDUMP
4760 static void btusb_coredump(struct device *dev)
4762 struct btusb_data *data = dev_get_drvdata(dev);
4763 struct hci_dev *hdev = data->hdev;
4765 if (hdev->dump.coredump)
4766 hdev->dump.coredump(hdev);
4770 static struct usb_driver btusb_driver = {
4772 .probe = btusb_probe,
4773 .disconnect = btusb_disconnect,
4775 .suspend = btusb_suspend,
4776 .resume = btusb_resume,
4778 .id_table = btusb_table,
4779 .supports_autosuspend = 1,
4780 .disable_hub_initiated_lpm = 1,
4782 #ifdef CONFIG_DEV_COREDUMP
4785 .coredump = btusb_coredump,
4791 module_usb_driver(btusb_driver);
4793 module_param(disable_scofix, bool, 0644);
4794 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
4796 module_param(force_scofix, bool, 0644);
4797 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
4799 module_param(enable_autosuspend, bool, 0644);
4800 MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default");
4802 module_param(reset, bool, 0644);
4803 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
4805 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
4806 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
4807 MODULE_VERSION(VERSION);
4808 MODULE_LICENSE("GPL");