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;
864 if (++data->cmd_timeout_cnt < 5)
873 * Toggle the hard reset line if the platform provides one. The reset
874 * is going to yank the device off the USB and then replug. So doing
875 * once is enough. The cleanup is handled correctly on the way out
876 * (standard USB disconnect), and the new device is detected cleanly
877 * and bound to the driver again like it should be.
879 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
880 bt_dev_err(hdev, "last reset failed? Not resetting again");
884 bt_dev_err(hdev, "Initiating HW reset via gpio");
885 gpiod_set_value_cansleep(reset_gpio, 1);
887 gpiod_set_value_cansleep(reset_gpio, 0);
890 static void btusb_rtl_cmd_timeout(struct hci_dev *hdev)
892 struct btusb_data *data = hci_get_drvdata(hdev);
893 struct gpio_desc *reset_gpio = data->reset_gpio;
895 if (++data->cmd_timeout_cnt < 5)
903 /* Toggle the hard reset line. The Realtek device is going to
904 * yank itself off the USB and then replug. The cleanup is handled
905 * correctly on the way out (standard USB disconnect), and the new
906 * device is detected cleanly and bound to the driver again like
909 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
910 bt_dev_err(hdev, "last reset failed? Not resetting again");
914 bt_dev_err(hdev, "Reset Realtek device via gpio");
915 gpiod_set_value_cansleep(reset_gpio, 1);
917 gpiod_set_value_cansleep(reset_gpio, 0);
920 static void btusb_qca_cmd_timeout(struct hci_dev *hdev)
922 struct btusb_data *data = hci_get_drvdata(hdev);
923 struct gpio_desc *reset_gpio = data->reset_gpio;
925 if (test_bit(BTUSB_HW_SSR_ACTIVE, &data->flags)) {
926 bt_dev_info(hdev, "Ramdump in progress, defer cmd_timeout");
930 if (++data->cmd_timeout_cnt < 5)
934 bt_dev_err(hdev, "Reset qca device via bt_en gpio");
936 /* Toggle the hard reset line. The qca bt device is going to
937 * yank itself off the USB and then replug. The cleanup is handled
938 * correctly on the way out (standard USB disconnect), and the new
939 * device is detected cleanly and bound to the driver again like
942 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
943 bt_dev_err(hdev, "last reset failed? Not resetting again");
947 gpiod_set_value_cansleep(reset_gpio, 0);
949 gpiod_set_value_cansleep(reset_gpio, 1);
957 static inline void btusb_free_frags(struct btusb_data *data)
961 spin_lock_irqsave(&data->rxlock, flags);
963 dev_kfree_skb_irq(data->evt_skb);
964 data->evt_skb = NULL;
966 dev_kfree_skb_irq(data->acl_skb);
967 data->acl_skb = NULL;
969 dev_kfree_skb_irq(data->sco_skb);
970 data->sco_skb = NULL;
972 spin_unlock_irqrestore(&data->rxlock, flags);
975 static int btusb_recv_event(struct btusb_data *data, struct sk_buff *skb)
977 if (data->intr_interval) {
978 /* Trigger dequeue immediatelly if an event is received */
979 schedule_delayed_work(&data->rx_work, 0);
982 return data->recv_event(data->hdev, skb);
985 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
991 spin_lock_irqsave(&data->rxlock, flags);
998 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
1004 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
1005 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE;
1008 len = min_t(uint, hci_skb_expect(skb), count);
1009 skb_put_data(skb, buffer, len);
1013 hci_skb_expect(skb) -= len;
1015 if (skb->len == HCI_EVENT_HDR_SIZE) {
1016 /* Complete event header */
1017 hci_skb_expect(skb) = hci_event_hdr(skb)->plen;
1019 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
1028 if (!hci_skb_expect(skb)) {
1029 /* Complete frame */
1030 btusb_recv_event(data, skb);
1035 data->evt_skb = skb;
1036 spin_unlock_irqrestore(&data->rxlock, flags);
1041 static int btusb_recv_acl(struct btusb_data *data, struct sk_buff *skb)
1043 /* Only queue ACL packet if intr_interval is set as it means
1044 * force_poll_sync has been enabled.
1046 if (!data->intr_interval)
1047 return data->recv_acl(data->hdev, skb);
1049 skb_queue_tail(&data->acl_q, skb);
1050 schedule_delayed_work(&data->rx_work, data->intr_interval);
1055 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
1057 struct sk_buff *skb;
1058 unsigned long flags;
1061 spin_lock_irqsave(&data->rxlock, flags);
1062 skb = data->acl_skb;
1068 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
1074 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT;
1075 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE;
1078 len = min_t(uint, hci_skb_expect(skb), count);
1079 skb_put_data(skb, buffer, len);
1083 hci_skb_expect(skb) -= len;
1085 if (skb->len == HCI_ACL_HDR_SIZE) {
1086 __le16 dlen = hci_acl_hdr(skb)->dlen;
1088 /* Complete ACL header */
1089 hci_skb_expect(skb) = __le16_to_cpu(dlen);
1091 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
1100 if (!hci_skb_expect(skb)) {
1101 /* Complete frame */
1102 btusb_recv_acl(data, skb);
1107 data->acl_skb = skb;
1108 spin_unlock_irqrestore(&data->rxlock, flags);
1113 static bool btusb_validate_sco_handle(struct hci_dev *hdev,
1114 struct hci_sco_hdr *hdr)
1118 if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL))
1119 // Can't validate, userspace controls everything.
1123 * USB isochronous transfers are not designed to be reliable and may
1124 * lose fragments. When this happens, the next first fragment
1125 * encountered might actually be a continuation fragment.
1126 * Validate the handle to detect it and drop it, or else the upper
1127 * layer will get garbage for a while.
1130 handle = hci_handle(__le16_to_cpu(hdr->handle));
1132 switch (hci_conn_lookup_type(hdev, handle)) {
1141 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
1143 struct sk_buff *skb;
1144 unsigned long flags;
1147 spin_lock_irqsave(&data->rxlock, flags);
1148 skb = data->sco_skb;
1154 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
1160 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT;
1161 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE;
1164 len = min_t(uint, hci_skb_expect(skb), count);
1165 skb_put_data(skb, buffer, len);
1169 hci_skb_expect(skb) -= len;
1171 if (skb->len == HCI_SCO_HDR_SIZE) {
1172 /* Complete SCO header */
1173 struct hci_sco_hdr *hdr = hci_sco_hdr(skb);
1175 hci_skb_expect(skb) = hdr->dlen;
1177 if (skb_tailroom(skb) < hci_skb_expect(skb) ||
1178 !btusb_validate_sco_handle(data->hdev, hdr)) {
1187 if (!hci_skb_expect(skb)) {
1188 /* Complete frame */
1189 hci_recv_frame(data->hdev, skb);
1194 data->sco_skb = skb;
1195 spin_unlock_irqrestore(&data->rxlock, flags);
1200 static void btusb_intr_complete(struct urb *urb)
1202 struct hci_dev *hdev = urb->context;
1203 struct btusb_data *data = hci_get_drvdata(hdev);
1206 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1207 urb->actual_length);
1209 if (!test_bit(HCI_RUNNING, &hdev->flags))
1212 if (urb->status == 0) {
1213 hdev->stat.byte_rx += urb->actual_length;
1215 if (btusb_recv_intr(data, urb->transfer_buffer,
1216 urb->actual_length) < 0) {
1217 bt_dev_err(hdev, "corrupted event packet");
1218 hdev->stat.err_rx++;
1220 } else if (urb->status == -ENOENT) {
1221 /* Avoid suspend failed when usb_kill_urb */
1225 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
1228 usb_mark_last_busy(data->udev);
1229 usb_anchor_urb(urb, &data->intr_anchor);
1231 err = usb_submit_urb(urb, GFP_ATOMIC);
1233 /* -EPERM: urb is being killed;
1234 * -ENODEV: device got disconnected
1236 if (err != -EPERM && err != -ENODEV)
1237 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1240 hci_cmd_sync_cancel(hdev, -err);
1241 usb_unanchor_urb(urb);
1245 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
1247 struct btusb_data *data = hci_get_drvdata(hdev);
1253 BT_DBG("%s", hdev->name);
1258 urb = usb_alloc_urb(0, mem_flags);
1262 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
1264 buf = kmalloc(size, mem_flags);
1270 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
1272 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
1273 btusb_intr_complete, hdev, data->intr_ep->bInterval);
1275 urb->transfer_flags |= URB_FREE_BUFFER;
1277 usb_anchor_urb(urb, &data->intr_anchor);
1279 err = usb_submit_urb(urb, mem_flags);
1281 if (err != -EPERM && err != -ENODEV)
1282 bt_dev_err(hdev, "urb %p submission failed (%d)",
1285 hci_cmd_sync_cancel(hdev, -err);
1286 usb_unanchor_urb(urb);
1289 /* Only initialize intr_interval if URB poll sync is enabled */
1290 if (!data->poll_sync)
1293 /* The units are frames (milliseconds) for full and low speed devices,
1294 * and microframes (1/8 millisecond) for highspeed and SuperSpeed
1297 * This is done once on open/resume so it shouldn't change even if
1298 * force_poll_sync changes.
1300 switch (urb->dev->speed) {
1301 case USB_SPEED_SUPER_PLUS:
1302 case USB_SPEED_SUPER: /* units are 125us */
1303 data->intr_interval = usecs_to_jiffies(urb->interval * 125);
1306 data->intr_interval = msecs_to_jiffies(urb->interval);
1316 static void btusb_bulk_complete(struct urb *urb)
1318 struct hci_dev *hdev = urb->context;
1319 struct btusb_data *data = hci_get_drvdata(hdev);
1322 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1323 urb->actual_length);
1325 if (!test_bit(HCI_RUNNING, &hdev->flags))
1328 if (urb->status == 0) {
1329 hdev->stat.byte_rx += urb->actual_length;
1331 if (data->recv_bulk(data, urb->transfer_buffer,
1332 urb->actual_length) < 0) {
1333 bt_dev_err(hdev, "corrupted ACL packet");
1334 hdev->stat.err_rx++;
1336 } else if (urb->status == -ENOENT) {
1337 /* Avoid suspend failed when usb_kill_urb */
1341 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
1344 usb_anchor_urb(urb, &data->bulk_anchor);
1345 usb_mark_last_busy(data->udev);
1347 err = usb_submit_urb(urb, GFP_ATOMIC);
1349 /* -EPERM: urb is being killed;
1350 * -ENODEV: device got disconnected
1352 if (err != -EPERM && err != -ENODEV)
1353 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1355 usb_unanchor_urb(urb);
1359 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
1361 struct btusb_data *data = hci_get_drvdata(hdev);
1365 int err, size = HCI_MAX_FRAME_SIZE;
1367 BT_DBG("%s", hdev->name);
1369 if (!data->bulk_rx_ep)
1372 urb = usb_alloc_urb(0, mem_flags);
1376 buf = kmalloc(size, mem_flags);
1382 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
1384 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1385 btusb_bulk_complete, hdev);
1387 urb->transfer_flags |= URB_FREE_BUFFER;
1389 usb_mark_last_busy(data->udev);
1390 usb_anchor_urb(urb, &data->bulk_anchor);
1392 err = usb_submit_urb(urb, mem_flags);
1394 if (err != -EPERM && err != -ENODEV)
1395 bt_dev_err(hdev, "urb %p submission failed (%d)",
1397 usb_unanchor_urb(urb);
1405 static void btusb_isoc_complete(struct urb *urb)
1407 struct hci_dev *hdev = urb->context;
1408 struct btusb_data *data = hci_get_drvdata(hdev);
1411 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1412 urb->actual_length);
1414 if (!test_bit(HCI_RUNNING, &hdev->flags))
1417 if (urb->status == 0) {
1418 for (i = 0; i < urb->number_of_packets; i++) {
1419 unsigned int offset = urb->iso_frame_desc[i].offset;
1420 unsigned int length = urb->iso_frame_desc[i].actual_length;
1422 if (urb->iso_frame_desc[i].status)
1425 hdev->stat.byte_rx += length;
1427 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
1429 bt_dev_err(hdev, "corrupted SCO packet");
1430 hdev->stat.err_rx++;
1433 } else if (urb->status == -ENOENT) {
1434 /* Avoid suspend failed when usb_kill_urb */
1438 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
1441 usb_anchor_urb(urb, &data->isoc_anchor);
1443 err = usb_submit_urb(urb, GFP_ATOMIC);
1445 /* -EPERM: urb is being killed;
1446 * -ENODEV: device got disconnected
1448 if (err != -EPERM && err != -ENODEV)
1449 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1451 usb_unanchor_urb(urb);
1455 static inline void __fill_isoc_descriptor_msbc(struct urb *urb, int len,
1456 int mtu, struct btusb_data *data)
1458 int i = 0, offset = 0;
1459 unsigned int interval;
1461 BT_DBG("len %d mtu %d", len, mtu);
1463 /* For mSBC ALT 6 settings some chips need to transmit the data
1464 * continuously without the zero length of USB packets.
1466 if (test_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags))
1467 goto ignore_usb_alt6_packet_flow;
1469 /* For mSBC ALT 6 setting the host will send the packet at continuous
1470 * flow. As per core spec 5, vol 4, part B, table 2.1. For ALT setting
1471 * 6 the HCI PACKET INTERVAL should be 7.5ms for every usb packets.
1472 * To maintain the rate we send 63bytes of usb packets alternatively for
1473 * 7ms and 8ms to maintain the rate as 7.5ms.
1475 if (data->usb_alt6_packet_flow) {
1477 data->usb_alt6_packet_flow = false;
1480 data->usb_alt6_packet_flow = true;
1483 for (i = 0; i < interval; i++) {
1484 urb->iso_frame_desc[i].offset = offset;
1485 urb->iso_frame_desc[i].length = offset;
1488 ignore_usb_alt6_packet_flow:
1489 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1490 urb->iso_frame_desc[i].offset = offset;
1491 urb->iso_frame_desc[i].length = len;
1495 urb->number_of_packets = i;
1498 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
1502 BT_DBG("len %d mtu %d", len, mtu);
1504 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
1505 i++, offset += mtu, len -= mtu) {
1506 urb->iso_frame_desc[i].offset = offset;
1507 urb->iso_frame_desc[i].length = mtu;
1510 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1511 urb->iso_frame_desc[i].offset = offset;
1512 urb->iso_frame_desc[i].length = len;
1516 urb->number_of_packets = i;
1519 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
1521 struct btusb_data *data = hci_get_drvdata(hdev);
1527 BT_DBG("%s", hdev->name);
1529 if (!data->isoc_rx_ep)
1532 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
1536 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
1537 BTUSB_MAX_ISOC_FRAMES;
1539 buf = kmalloc(size, mem_flags);
1545 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
1547 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
1548 hdev, data->isoc_rx_ep->bInterval);
1550 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
1552 __fill_isoc_descriptor(urb, size,
1553 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
1555 usb_anchor_urb(urb, &data->isoc_anchor);
1557 err = usb_submit_urb(urb, mem_flags);
1559 if (err != -EPERM && err != -ENODEV)
1560 bt_dev_err(hdev, "urb %p submission failed (%d)",
1562 usb_unanchor_urb(urb);
1570 static void btusb_diag_complete(struct urb *urb)
1572 struct hci_dev *hdev = urb->context;
1573 struct btusb_data *data = hci_get_drvdata(hdev);
1576 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1577 urb->actual_length);
1579 if (urb->status == 0) {
1580 struct sk_buff *skb;
1582 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC);
1584 skb_put_data(skb, urb->transfer_buffer,
1585 urb->actual_length);
1586 hci_recv_diag(hdev, skb);
1588 } else if (urb->status == -ENOENT) {
1589 /* Avoid suspend failed when usb_kill_urb */
1593 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags))
1596 usb_anchor_urb(urb, &data->diag_anchor);
1597 usb_mark_last_busy(data->udev);
1599 err = usb_submit_urb(urb, GFP_ATOMIC);
1601 /* -EPERM: urb is being killed;
1602 * -ENODEV: device got disconnected
1604 if (err != -EPERM && err != -ENODEV)
1605 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1607 usb_unanchor_urb(urb);
1611 static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags)
1613 struct btusb_data *data = hci_get_drvdata(hdev);
1617 int err, size = HCI_MAX_FRAME_SIZE;
1619 BT_DBG("%s", hdev->name);
1621 if (!data->diag_rx_ep)
1624 urb = usb_alloc_urb(0, mem_flags);
1628 buf = kmalloc(size, mem_flags);
1634 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress);
1636 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1637 btusb_diag_complete, hdev);
1639 urb->transfer_flags |= URB_FREE_BUFFER;
1641 usb_mark_last_busy(data->udev);
1642 usb_anchor_urb(urb, &data->diag_anchor);
1644 err = usb_submit_urb(urb, mem_flags);
1646 if (err != -EPERM && err != -ENODEV)
1647 bt_dev_err(hdev, "urb %p submission failed (%d)",
1649 usb_unanchor_urb(urb);
1657 static void btusb_tx_complete(struct urb *urb)
1659 struct sk_buff *skb = urb->context;
1660 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1661 struct btusb_data *data = hci_get_drvdata(hdev);
1662 unsigned long flags;
1664 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1665 urb->actual_length);
1667 if (!test_bit(HCI_RUNNING, &hdev->flags))
1671 hdev->stat.byte_tx += urb->transfer_buffer_length;
1673 if (hci_skb_pkt_type(skb) == HCI_COMMAND_PKT)
1674 hci_cmd_sync_cancel(hdev, -urb->status);
1675 hdev->stat.err_tx++;
1679 spin_lock_irqsave(&data->txlock, flags);
1680 data->tx_in_flight--;
1681 spin_unlock_irqrestore(&data->txlock, flags);
1683 kfree(urb->setup_packet);
1688 static void btusb_isoc_tx_complete(struct urb *urb)
1690 struct sk_buff *skb = urb->context;
1691 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1693 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1694 urb->actual_length);
1696 if (!test_bit(HCI_RUNNING, &hdev->flags))
1700 hdev->stat.byte_tx += urb->transfer_buffer_length;
1702 hdev->stat.err_tx++;
1705 kfree(urb->setup_packet);
1710 static int btusb_open(struct hci_dev *hdev)
1712 struct btusb_data *data = hci_get_drvdata(hdev);
1715 BT_DBG("%s", hdev->name);
1717 err = usb_autopm_get_interface(data->intf);
1721 /* Patching USB firmware files prior to starting any URBs of HCI path
1722 * It is more safe to use USB bulk channel for downloading USB patch
1724 if (data->setup_on_usb) {
1725 err = data->setup_on_usb(hdev);
1730 data->intf->needs_remote_wakeup = 1;
1732 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
1735 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
1739 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1741 usb_kill_anchored_urbs(&data->intr_anchor);
1745 set_bit(BTUSB_BULK_RUNNING, &data->flags);
1746 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1749 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL))
1750 set_bit(BTUSB_DIAG_RUNNING, &data->flags);
1754 usb_autopm_put_interface(data->intf);
1758 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1760 usb_autopm_put_interface(data->intf);
1764 static void btusb_stop_traffic(struct btusb_data *data)
1766 usb_kill_anchored_urbs(&data->intr_anchor);
1767 usb_kill_anchored_urbs(&data->bulk_anchor);
1768 usb_kill_anchored_urbs(&data->isoc_anchor);
1769 usb_kill_anchored_urbs(&data->diag_anchor);
1770 usb_kill_anchored_urbs(&data->ctrl_anchor);
1773 static int btusb_close(struct hci_dev *hdev)
1775 struct btusb_data *data = hci_get_drvdata(hdev);
1778 BT_DBG("%s", hdev->name);
1780 cancel_delayed_work(&data->rx_work);
1781 cancel_work_sync(&data->work);
1782 cancel_work_sync(&data->waker);
1784 skb_queue_purge(&data->acl_q);
1786 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1787 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1788 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1789 clear_bit(BTUSB_DIAG_RUNNING, &data->flags);
1791 btusb_stop_traffic(data);
1792 btusb_free_frags(data);
1794 err = usb_autopm_get_interface(data->intf);
1798 data->intf->needs_remote_wakeup = 0;
1800 /* Enable remote wake up for auto-suspend */
1801 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags))
1802 data->intf->needs_remote_wakeup = 1;
1804 usb_autopm_put_interface(data->intf);
1807 usb_scuttle_anchored_urbs(&data->deferred);
1811 static int btusb_flush(struct hci_dev *hdev)
1813 struct btusb_data *data = hci_get_drvdata(hdev);
1815 BT_DBG("%s", hdev->name);
1817 cancel_delayed_work(&data->rx_work);
1819 skb_queue_purge(&data->acl_q);
1821 usb_kill_anchored_urbs(&data->tx_anchor);
1822 btusb_free_frags(data);
1827 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
1829 struct btusb_data *data = hci_get_drvdata(hdev);
1830 struct usb_ctrlrequest *dr;
1834 urb = usb_alloc_urb(0, GFP_KERNEL);
1836 return ERR_PTR(-ENOMEM);
1838 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
1841 return ERR_PTR(-ENOMEM);
1844 dr->bRequestType = data->cmdreq_type;
1845 dr->bRequest = data->cmdreq;
1848 dr->wLength = __cpu_to_le16(skb->len);
1850 pipe = usb_sndctrlpipe(data->udev, 0x00);
1852 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
1853 skb->data, skb->len, btusb_tx_complete, skb);
1855 skb->dev = (void *)hdev;
1860 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
1862 struct btusb_data *data = hci_get_drvdata(hdev);
1866 if (!data->bulk_tx_ep)
1867 return ERR_PTR(-ENODEV);
1869 urb = usb_alloc_urb(0, GFP_KERNEL);
1871 return ERR_PTR(-ENOMEM);
1873 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
1875 usb_fill_bulk_urb(urb, data->udev, pipe,
1876 skb->data, skb->len, btusb_tx_complete, skb);
1878 skb->dev = (void *)hdev;
1883 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
1885 struct btusb_data *data = hci_get_drvdata(hdev);
1889 if (!data->isoc_tx_ep)
1890 return ERR_PTR(-ENODEV);
1892 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
1894 return ERR_PTR(-ENOMEM);
1896 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
1898 usb_fill_int_urb(urb, data->udev, pipe,
1899 skb->data, skb->len, btusb_isoc_tx_complete,
1900 skb, data->isoc_tx_ep->bInterval);
1902 urb->transfer_flags = URB_ISO_ASAP;
1904 if (data->isoc_altsetting == 6)
1905 __fill_isoc_descriptor_msbc(urb, skb->len,
1906 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize),
1909 __fill_isoc_descriptor(urb, skb->len,
1910 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
1911 skb->dev = (void *)hdev;
1916 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
1918 struct btusb_data *data = hci_get_drvdata(hdev);
1921 usb_anchor_urb(urb, &data->tx_anchor);
1923 err = usb_submit_urb(urb, GFP_KERNEL);
1925 if (err != -EPERM && err != -ENODEV)
1926 bt_dev_err(hdev, "urb %p submission failed (%d)",
1928 kfree(urb->setup_packet);
1929 usb_unanchor_urb(urb);
1931 usb_mark_last_busy(data->udev);
1938 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
1940 struct btusb_data *data = hci_get_drvdata(hdev);
1941 unsigned long flags;
1944 spin_lock_irqsave(&data->txlock, flags);
1945 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
1947 data->tx_in_flight++;
1948 spin_unlock_irqrestore(&data->txlock, flags);
1951 return submit_tx_urb(hdev, urb);
1953 usb_anchor_urb(urb, &data->deferred);
1954 schedule_work(&data->waker);
1960 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
1964 BT_DBG("%s", hdev->name);
1966 switch (hci_skb_pkt_type(skb)) {
1967 case HCI_COMMAND_PKT:
1968 urb = alloc_ctrl_urb(hdev, skb);
1970 return PTR_ERR(urb);
1972 hdev->stat.cmd_tx++;
1973 return submit_or_queue_tx_urb(hdev, urb);
1975 case HCI_ACLDATA_PKT:
1976 urb = alloc_bulk_urb(hdev, skb);
1978 return PTR_ERR(urb);
1980 hdev->stat.acl_tx++;
1981 return submit_or_queue_tx_urb(hdev, urb);
1983 case HCI_SCODATA_PKT:
1984 if (hci_conn_num(hdev, SCO_LINK) < 1)
1987 urb = alloc_isoc_urb(hdev, skb);
1989 return PTR_ERR(urb);
1991 hdev->stat.sco_tx++;
1992 return submit_tx_urb(hdev, urb);
1994 case HCI_ISODATA_PKT:
1995 urb = alloc_bulk_urb(hdev, skb);
1997 return PTR_ERR(urb);
1999 return submit_or_queue_tx_urb(hdev, urb);
2005 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
2007 struct btusb_data *data = hci_get_drvdata(hdev);
2009 BT_DBG("%s evt %d", hdev->name, evt);
2011 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
2012 data->sco_num = hci_conn_num(hdev, SCO_LINK);
2013 data->air_mode = evt;
2014 schedule_work(&data->work);
2018 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
2020 struct btusb_data *data = hci_get_drvdata(hdev);
2021 struct usb_interface *intf = data->isoc;
2022 struct usb_endpoint_descriptor *ep_desc;
2028 err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting);
2030 bt_dev_err(hdev, "setting interface failed (%d)", -err);
2034 data->isoc_altsetting = altsetting;
2036 data->isoc_tx_ep = NULL;
2037 data->isoc_rx_ep = NULL;
2039 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2040 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2042 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
2043 data->isoc_tx_ep = ep_desc;
2047 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
2048 data->isoc_rx_ep = ep_desc;
2053 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
2054 bt_dev_err(hdev, "invalid SCO descriptors");
2061 static int btusb_switch_alt_setting(struct hci_dev *hdev, int new_alts)
2063 struct btusb_data *data = hci_get_drvdata(hdev);
2066 if (data->isoc_altsetting != new_alts) {
2067 unsigned long flags;
2069 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2070 usb_kill_anchored_urbs(&data->isoc_anchor);
2072 /* When isochronous alternate setting needs to be
2073 * changed, because SCO connection has been added
2074 * or removed, a packet fragment may be left in the
2075 * reassembling state. This could lead to wrongly
2076 * assembled fragments.
2078 * Clear outstanding fragment when selecting a new
2079 * alternate setting.
2081 spin_lock_irqsave(&data->rxlock, flags);
2082 kfree_skb(data->sco_skb);
2083 data->sco_skb = NULL;
2084 spin_unlock_irqrestore(&data->rxlock, flags);
2086 err = __set_isoc_interface(hdev, new_alts);
2091 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2092 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
2093 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2095 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
2101 static struct usb_host_interface *btusb_find_altsetting(struct btusb_data *data,
2104 struct usb_interface *intf = data->isoc;
2107 BT_DBG("Looking for Alt no :%d", alt);
2112 for (i = 0; i < intf->num_altsetting; i++) {
2113 if (intf->altsetting[i].desc.bAlternateSetting == alt)
2114 return &intf->altsetting[i];
2120 static void btusb_work(struct work_struct *work)
2122 struct btusb_data *data = container_of(work, struct btusb_data, work);
2123 struct hci_dev *hdev = data->hdev;
2127 if (data->sco_num > 0) {
2128 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
2129 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
2131 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2132 usb_kill_anchored_urbs(&data->isoc_anchor);
2136 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
2139 if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_CVSD) {
2140 if (hdev->voice_setting & 0x0020) {
2141 static const int alts[3] = { 2, 4, 5 };
2143 new_alts = alts[data->sco_num - 1];
2145 new_alts = data->sco_num;
2147 } else if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_TRANSP) {
2148 /* Bluetooth USB spec recommends alt 6 (63 bytes), but
2149 * many adapters do not support it. Alt 1 appears to
2150 * work for all adapters that do not have alt 6, and
2151 * which work with WBS at all. Some devices prefer
2152 * alt 3 (HCI payload >= 60 Bytes let air packet
2153 * data satisfy 60 bytes), requiring
2154 * MTU >= 3 (packets) * 25 (size) - 3 (headers) = 72
2155 * see also Core spec 5, vol 4, B 2.1.1 & Table 2.1.
2157 if (btusb_find_altsetting(data, 6))
2159 else if (btusb_find_altsetting(data, 3) &&
2160 hdev->sco_mtu >= 72 &&
2161 test_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags))
2167 if (btusb_switch_alt_setting(hdev, new_alts) < 0)
2168 bt_dev_err(hdev, "set USB alt:(%d) failed!", new_alts);
2170 usb_kill_anchored_urbs(&data->isoc_anchor);
2172 if (test_and_clear_bit(BTUSB_ISOC_RUNNING, &data->flags))
2173 __set_isoc_interface(hdev, 0);
2175 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
2176 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
2180 static void btusb_waker(struct work_struct *work)
2182 struct btusb_data *data = container_of(work, struct btusb_data, waker);
2185 err = usb_autopm_get_interface(data->intf);
2189 usb_autopm_put_interface(data->intf);
2192 static void btusb_rx_work(struct work_struct *work)
2194 struct btusb_data *data = container_of(work, struct btusb_data,
2196 struct sk_buff *skb;
2198 /* Dequeue ACL data received during the interval */
2199 while ((skb = skb_dequeue(&data->acl_q)))
2200 data->recv_acl(data->hdev, skb);
2203 static int btusb_setup_bcm92035(struct hci_dev *hdev)
2205 struct sk_buff *skb;
2208 BT_DBG("%s", hdev->name);
2210 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
2212 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb));
2219 static int btusb_setup_csr(struct hci_dev *hdev)
2221 struct btusb_data *data = hci_get_drvdata(hdev);
2222 u16 bcdDevice = le16_to_cpu(data->udev->descriptor.bcdDevice);
2223 struct hci_rp_read_local_version *rp;
2224 struct sk_buff *skb;
2225 bool is_fake = false;
2228 BT_DBG("%s", hdev->name);
2230 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
2233 int err = PTR_ERR(skb);
2234 bt_dev_err(hdev, "CSR: Local version failed (%d)", err);
2238 rp = skb_pull_data(skb, sizeof(*rp));
2240 bt_dev_err(hdev, "CSR: Local version length mismatch");
2245 bt_dev_info(hdev, "CSR: Setting up dongle with HCI ver=%u rev=%04x",
2246 rp->hci_ver, le16_to_cpu(rp->hci_rev));
2248 bt_dev_info(hdev, "LMP ver=%u subver=%04x; manufacturer=%u",
2249 rp->lmp_ver, le16_to_cpu(rp->lmp_subver),
2250 le16_to_cpu(rp->manufacturer));
2252 /* Detect a wide host of Chinese controllers that aren't CSR.
2254 * Known fake bcdDevices: 0x0100, 0x0134, 0x1915, 0x2520, 0x7558, 0x8891
2256 * The main thing they have in common is that these are really popular low-cost
2257 * options that support newer Bluetooth versions but rely on heavy VID/PID
2258 * squatting of this poor old Bluetooth 1.1 device. Even sold as such.
2260 * We detect actual CSR devices by checking that the HCI manufacturer code
2261 * is Cambridge Silicon Radio (10) and ensuring that LMP sub-version and
2262 * HCI rev values always match. As they both store the firmware number.
2264 if (le16_to_cpu(rp->manufacturer) != 10 ||
2265 le16_to_cpu(rp->hci_rev) != le16_to_cpu(rp->lmp_subver))
2268 /* Known legit CSR firmware build numbers and their supported BT versions:
2269 * - 1.1 (0x1) -> 0x0073, 0x020d, 0x033c, 0x034e
2270 * - 1.2 (0x2) -> 0x04d9, 0x0529
2271 * - 2.0 (0x3) -> 0x07a6, 0x07ad, 0x0c5c
2272 * - 2.1 (0x4) -> 0x149c, 0x1735, 0x1899 (0x1899 is a BlueCore4-External)
2273 * - 4.0 (0x6) -> 0x1d86, 0x2031, 0x22bb
2275 * e.g. Real CSR dongles with LMP subversion 0x73 are old enough that
2276 * support BT 1.1 only; so it's a dead giveaway when some
2277 * third-party BT 4.0 dongle reuses it.
2279 else if (le16_to_cpu(rp->lmp_subver) <= 0x034e &&
2280 rp->hci_ver > BLUETOOTH_VER_1_1)
2283 else if (le16_to_cpu(rp->lmp_subver) <= 0x0529 &&
2284 rp->hci_ver > BLUETOOTH_VER_1_2)
2287 else if (le16_to_cpu(rp->lmp_subver) <= 0x0c5c &&
2288 rp->hci_ver > BLUETOOTH_VER_2_0)
2291 else if (le16_to_cpu(rp->lmp_subver) <= 0x1899 &&
2292 rp->hci_ver > BLUETOOTH_VER_2_1)
2295 else if (le16_to_cpu(rp->lmp_subver) <= 0x22bb &&
2296 rp->hci_ver > BLUETOOTH_VER_4_0)
2299 /* Other clones which beat all the above checks */
2300 else if (bcdDevice == 0x0134 &&
2301 le16_to_cpu(rp->lmp_subver) == 0x0c5c &&
2302 rp->hci_ver == BLUETOOTH_VER_2_0)
2306 bt_dev_warn(hdev, "CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once...");
2308 /* Generally these clones have big discrepancies between
2309 * advertised features and what's actually supported.
2310 * Probably will need to be expanded in the future;
2311 * without these the controller will lock up.
2313 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
2314 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks);
2315 set_bit(HCI_QUIRK_BROKEN_FILTER_CLEAR_ALL, &hdev->quirks);
2316 set_bit(HCI_QUIRK_NO_SUSPEND_NOTIFIER, &hdev->quirks);
2318 /* Clear the reset quirk since this is not an actual
2319 * early Bluetooth 1.1 device from CSR.
2321 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
2322 clear_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
2325 * Special workaround for these BT 4.0 chip clones, and potentially more:
2327 * - 0x0134: a Barrot 8041a02 (HCI rev: 0x0810 sub: 0x1012)
2328 * - 0x7558: IC markings FR3191AHAL 749H15143 (HCI rev/sub-version: 0x0709)
2330 * These controllers are really messed-up.
2332 * 1. Their bulk RX endpoint will never report any data unless
2333 * the device was suspended at least once (yes, really).
2334 * 2. They will not wakeup when autosuspended and receiving data
2335 * on their bulk RX endpoint from e.g. a keyboard or mouse
2336 * (IOW remote-wakeup support is broken for the bulk endpoint).
2338 * To fix 1. enable runtime-suspend, force-suspend the
2339 * HCI and then wake-it up by disabling runtime-suspend.
2341 * To fix 2. clear the HCI's can_wake flag, this way the HCI
2342 * will still be autosuspended when it is not open.
2346 * Because these are widespread problems we prefer generic solutions; so
2347 * apply this initialization quirk to every controller that gets here,
2348 * it should be harmless. The alternative is to not work at all.
2350 pm_runtime_allow(&data->udev->dev);
2352 ret = pm_runtime_suspend(&data->udev->dev);
2356 bt_dev_warn(hdev, "CSR: Couldn't suspend the device for our Barrot 8041a02 receive-issue workaround");
2358 pm_runtime_forbid(&data->udev->dev);
2360 device_set_wakeup_capable(&data->udev->dev, false);
2362 /* Re-enable autosuspend if this was requested */
2363 if (enable_autosuspend)
2364 usb_enable_autosuspend(data->udev);
2372 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
2374 struct sk_buff *skb;
2375 struct hci_event_hdr *hdr;
2376 struct hci_ev_cmd_complete *evt;
2378 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL);
2382 hdr = skb_put(skb, sizeof(*hdr));
2383 hdr->evt = HCI_EV_CMD_COMPLETE;
2384 hdr->plen = sizeof(*evt) + 1;
2386 evt = skb_put(skb, sizeof(*evt));
2388 evt->opcode = cpu_to_le16(opcode);
2390 skb_put_u8(skb, 0x00);
2392 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
2394 return hci_recv_frame(hdev, skb);
2397 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
2400 struct hci_dev *hdev = data->hdev;
2402 /* When the device is in bootloader mode, then it can send
2403 * events via the bulk endpoint. These events are treated the
2404 * same way as the ones received from the interrupt endpoint.
2406 if (btintel_test_flag(hdev, INTEL_BOOTLOADER))
2407 return btusb_recv_intr(data, buffer, count);
2409 return btusb_recv_bulk(data, buffer, count);
2412 static int btusb_intel_diagnostics(struct hci_dev *hdev, struct sk_buff *skb)
2414 struct intel_tlv *tlv = (void *)&skb->data[5];
2416 /* The first event is always an event type TLV */
2417 if (tlv->type != INTEL_TLV_TYPE_ID)
2420 switch (tlv->val[0]) {
2421 case INTEL_TLV_SYSTEM_EXCEPTION:
2422 case INTEL_TLV_FATAL_EXCEPTION:
2423 case INTEL_TLV_DEBUG_EXCEPTION:
2424 case INTEL_TLV_TEST_EXCEPTION:
2425 /* Generate devcoredump from exception */
2426 if (!hci_devcd_init(hdev, skb->len)) {
2427 hci_devcd_append(hdev, skb);
2428 hci_devcd_complete(hdev);
2430 bt_dev_err(hdev, "Failed to generate devcoredump");
2435 bt_dev_err(hdev, "Invalid exception type %02X", tlv->val[0]);
2439 return hci_recv_frame(hdev, skb);
2442 static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb)
2444 struct hci_event_hdr *hdr = (void *)skb->data;
2445 const char diagnostics_hdr[] = { 0x87, 0x80, 0x03 };
2447 if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff &&
2449 const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1;
2450 unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1;
2452 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) {
2453 switch (skb->data[2]) {
2455 /* When switching to the operational firmware
2456 * the device sends a vendor specific event
2457 * indicating that the bootup completed.
2459 btintel_bootup(hdev, ptr, len);
2462 /* When the firmware loading completes the
2463 * device sends out a vendor specific event
2464 * indicating the result of the firmware
2467 btintel_secure_send_result(hdev, ptr, len);
2472 /* Handle all diagnostics events separately. May still call
2475 if (len >= sizeof(diagnostics_hdr) &&
2476 memcmp(&skb->data[2], diagnostics_hdr,
2477 sizeof(diagnostics_hdr)) == 0) {
2478 return btusb_intel_diagnostics(hdev, skb);
2482 return hci_recv_frame(hdev, skb);
2485 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
2489 BT_DBG("%s", hdev->name);
2491 switch (hci_skb_pkt_type(skb)) {
2492 case HCI_COMMAND_PKT:
2493 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) {
2494 struct hci_command_hdr *cmd = (void *)skb->data;
2495 __u16 opcode = le16_to_cpu(cmd->opcode);
2497 /* When in bootloader mode and the command 0xfc09
2498 * is received, it needs to be send down the
2499 * bulk endpoint. So allocate a bulk URB instead.
2501 if (opcode == 0xfc09)
2502 urb = alloc_bulk_urb(hdev, skb);
2504 urb = alloc_ctrl_urb(hdev, skb);
2506 /* When the 0xfc01 command is issued to boot into
2507 * the operational firmware, it will actually not
2508 * send a command complete event. To keep the flow
2509 * control working inject that event here.
2511 if (opcode == 0xfc01)
2512 inject_cmd_complete(hdev, opcode);
2514 urb = alloc_ctrl_urb(hdev, skb);
2517 return PTR_ERR(urb);
2519 hdev->stat.cmd_tx++;
2520 return submit_or_queue_tx_urb(hdev, urb);
2522 case HCI_ACLDATA_PKT:
2523 urb = alloc_bulk_urb(hdev, skb);
2525 return PTR_ERR(urb);
2527 hdev->stat.acl_tx++;
2528 return submit_or_queue_tx_urb(hdev, urb);
2530 case HCI_SCODATA_PKT:
2531 if (hci_conn_num(hdev, SCO_LINK) < 1)
2534 urb = alloc_isoc_urb(hdev, skb);
2536 return PTR_ERR(urb);
2538 hdev->stat.sco_tx++;
2539 return submit_tx_urb(hdev, urb);
2541 case HCI_ISODATA_PKT:
2542 urb = alloc_bulk_urb(hdev, skb);
2544 return PTR_ERR(urb);
2546 return submit_or_queue_tx_urb(hdev, urb);
2552 static int btusb_setup_realtek(struct hci_dev *hdev)
2554 struct btusb_data *data = hci_get_drvdata(hdev);
2557 ret = btrtl_setup_realtek(hdev);
2559 if (btrealtek_test_flag(data->hdev, REALTEK_ALT6_CONTINUOUS_TX_CHIP))
2560 set_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags);
2565 /* UHW CR mapping */
2566 #define MTK_BT_MISC 0x70002510
2567 #define MTK_BT_SUBSYS_RST 0x70002610
2568 #define MTK_UDMA_INT_STA_BT 0x74000024
2569 #define MTK_UDMA_INT_STA_BT1 0x74000308
2570 #define MTK_BT_WDT_STATUS 0x740003A0
2571 #define MTK_EP_RST_OPT 0x74011890
2572 #define MTK_EP_RST_IN_OUT_OPT 0x00010001
2573 #define MTK_BT_RST_DONE 0x00000100
2574 #define MTK_BT_RESET_WAIT_MS 100
2575 #define MTK_BT_RESET_NUM_TRIES 10
2577 static void btusb_mtk_wmt_recv(struct urb *urb)
2579 struct hci_dev *hdev = urb->context;
2580 struct btusb_data *data = hci_get_drvdata(hdev);
2581 struct sk_buff *skb;
2584 if (urb->status == 0 && urb->actual_length > 0) {
2585 hdev->stat.byte_rx += urb->actual_length;
2587 /* WMT event shouldn't be fragmented and the size should be
2588 * less than HCI_WMT_MAX_EVENT_SIZE.
2590 skb = bt_skb_alloc(HCI_WMT_MAX_EVENT_SIZE, GFP_ATOMIC);
2592 hdev->stat.err_rx++;
2593 kfree(urb->setup_packet);
2597 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
2598 skb_put_data(skb, urb->transfer_buffer, urb->actual_length);
2600 /* When someone waits for the WMT event, the skb is being cloned
2601 * and being processed the events from there then.
2603 if (test_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags)) {
2604 data->evt_skb = skb_clone(skb, GFP_ATOMIC);
2605 if (!data->evt_skb) {
2607 kfree(urb->setup_packet);
2612 err = hci_recv_frame(hdev, skb);
2614 kfree_skb(data->evt_skb);
2615 data->evt_skb = NULL;
2616 kfree(urb->setup_packet);
2620 if (test_and_clear_bit(BTUSB_TX_WAIT_VND_EVT,
2622 /* Barrier to sync with other CPUs */
2623 smp_mb__after_atomic();
2624 wake_up_bit(&data->flags,
2625 BTUSB_TX_WAIT_VND_EVT);
2627 kfree(urb->setup_packet);
2629 } else if (urb->status == -ENOENT) {
2630 /* Avoid suspend failed when usb_kill_urb */
2634 usb_mark_last_busy(data->udev);
2636 /* The URB complete handler is still called with urb->actual_length = 0
2637 * when the event is not available, so we should keep re-submitting
2638 * URB until WMT event returns, Also, It's necessary to wait some time
2639 * between the two consecutive control URBs to relax the target device
2640 * to generate the event. Otherwise, the WMT event cannot return from
2641 * the device successfully.
2645 usb_anchor_urb(urb, &data->ctrl_anchor);
2646 err = usb_submit_urb(urb, GFP_ATOMIC);
2648 kfree(urb->setup_packet);
2649 /* -EPERM: urb is being killed;
2650 * -ENODEV: device got disconnected
2652 if (err != -EPERM && err != -ENODEV)
2653 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
2655 usb_unanchor_urb(urb);
2659 static int btusb_mtk_submit_wmt_recv_urb(struct hci_dev *hdev)
2661 struct btusb_data *data = hci_get_drvdata(hdev);
2662 struct usb_ctrlrequest *dr;
2668 urb = usb_alloc_urb(0, GFP_KERNEL);
2672 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
2678 dr->bRequestType = USB_TYPE_VENDOR | USB_DIR_IN;
2680 dr->wIndex = cpu_to_le16(0);
2681 dr->wValue = cpu_to_le16(48);
2682 dr->wLength = cpu_to_le16(size);
2684 buf = kmalloc(size, GFP_KERNEL);
2691 pipe = usb_rcvctrlpipe(data->udev, 0);
2693 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
2694 buf, size, btusb_mtk_wmt_recv, hdev);
2696 urb->transfer_flags |= URB_FREE_BUFFER;
2698 usb_anchor_urb(urb, &data->ctrl_anchor);
2699 err = usb_submit_urb(urb, GFP_KERNEL);
2701 if (err != -EPERM && err != -ENODEV)
2702 bt_dev_err(hdev, "urb %p submission failed (%d)",
2704 usb_unanchor_urb(urb);
2712 static int btusb_mtk_hci_wmt_sync(struct hci_dev *hdev,
2713 struct btmtk_hci_wmt_params *wmt_params)
2715 struct btusb_data *data = hci_get_drvdata(hdev);
2716 struct btmtk_hci_wmt_evt_funcc *wmt_evt_funcc;
2717 u32 hlen, status = BTMTK_WMT_INVALID;
2718 struct btmtk_hci_wmt_evt *wmt_evt;
2719 struct btmtk_hci_wmt_cmd *wc;
2720 struct btmtk_wmt_hdr *hdr;
2723 /* Send the WMT command and wait until the WMT event returns */
2724 hlen = sizeof(*hdr) + wmt_params->dlen;
2728 wc = kzalloc(hlen, GFP_KERNEL);
2734 hdr->op = wmt_params->op;
2735 hdr->dlen = cpu_to_le16(wmt_params->dlen + 1);
2736 hdr->flag = wmt_params->flag;
2737 memcpy(wc->data, wmt_params->data, wmt_params->dlen);
2739 set_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2741 /* WMT cmd/event doesn't follow up the generic HCI cmd/event handling,
2742 * it needs constantly polling control pipe until the host received the
2743 * WMT event, thus, we should require to specifically acquire PM counter
2744 * on the USB to prevent the interface from entering auto suspended
2745 * while WMT cmd/event in progress.
2747 err = usb_autopm_get_interface(data->intf);
2751 err = __hci_cmd_send(hdev, 0xfc6f, hlen, wc);
2754 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2755 usb_autopm_put_interface(data->intf);
2759 /* Submit control IN URB on demand to process the WMT event */
2760 err = btusb_mtk_submit_wmt_recv_urb(hdev);
2762 usb_autopm_put_interface(data->intf);
2767 /* The vendor specific WMT commands are all answered by a vendor
2768 * specific event and will have the Command Status or Command
2769 * Complete as with usual HCI command flow control.
2771 * After sending the command, wait for BTUSB_TX_WAIT_VND_EVT
2772 * state to be cleared. The driver specific event receive routine
2773 * will clear that state and with that indicate completion of the
2776 err = wait_on_bit_timeout(&data->flags, BTUSB_TX_WAIT_VND_EVT,
2777 TASK_INTERRUPTIBLE, HCI_INIT_TIMEOUT);
2778 if (err == -EINTR) {
2779 bt_dev_err(hdev, "Execution of wmt command interrupted");
2780 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2785 bt_dev_err(hdev, "Execution of wmt command timed out");
2786 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2791 /* Parse and handle the return WMT event */
2792 wmt_evt = (struct btmtk_hci_wmt_evt *)data->evt_skb->data;
2793 if (wmt_evt->whdr.op != hdr->op) {
2794 bt_dev_err(hdev, "Wrong op received %d expected %d",
2795 wmt_evt->whdr.op, hdr->op);
2800 switch (wmt_evt->whdr.op) {
2801 case BTMTK_WMT_SEMAPHORE:
2802 if (wmt_evt->whdr.flag == 2)
2803 status = BTMTK_WMT_PATCH_UNDONE;
2805 status = BTMTK_WMT_PATCH_DONE;
2807 case BTMTK_WMT_FUNC_CTRL:
2808 wmt_evt_funcc = (struct btmtk_hci_wmt_evt_funcc *)wmt_evt;
2809 if (be16_to_cpu(wmt_evt_funcc->status) == 0x404)
2810 status = BTMTK_WMT_ON_DONE;
2811 else if (be16_to_cpu(wmt_evt_funcc->status) == 0x420)
2812 status = BTMTK_WMT_ON_PROGRESS;
2814 status = BTMTK_WMT_ON_UNDONE;
2816 case BTMTK_WMT_PATCH_DWNLD:
2817 if (wmt_evt->whdr.flag == 2)
2818 status = BTMTK_WMT_PATCH_DONE;
2819 else if (wmt_evt->whdr.flag == 1)
2820 status = BTMTK_WMT_PATCH_PROGRESS;
2822 status = BTMTK_WMT_PATCH_UNDONE;
2826 if (wmt_params->status)
2827 *wmt_params->status = status;
2830 kfree_skb(data->evt_skb);
2831 data->evt_skb = NULL;
2837 static int btusb_mtk_func_query(struct hci_dev *hdev)
2839 struct btmtk_hci_wmt_params wmt_params;
2843 /* Query whether the function is enabled */
2844 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
2845 wmt_params.flag = 4;
2846 wmt_params.dlen = sizeof(param);
2847 wmt_params.data = ¶m;
2848 wmt_params.status = &status;
2850 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2852 bt_dev_err(hdev, "Failed to query function status (%d)", err);
2859 static int btusb_mtk_uhw_reg_write(struct btusb_data *data, u32 reg, u32 val)
2861 struct hci_dev *hdev = data->hdev;
2865 buf = kzalloc(4, GFP_KERNEL);
2869 put_unaligned_le32(val, buf);
2871 pipe = usb_sndctrlpipe(data->udev, 0);
2872 err = usb_control_msg(data->udev, pipe, 0x02,
2874 reg >> 16, reg & 0xffff,
2875 buf, 4, USB_CTRL_SET_TIMEOUT);
2877 bt_dev_err(hdev, "Failed to write uhw reg(%d)", err);
2887 static int btusb_mtk_uhw_reg_read(struct btusb_data *data, u32 reg, u32 *val)
2889 struct hci_dev *hdev = data->hdev;
2893 buf = kzalloc(4, GFP_KERNEL);
2897 pipe = usb_rcvctrlpipe(data->udev, 0);
2898 err = usb_control_msg(data->udev, pipe, 0x01,
2900 reg >> 16, reg & 0xffff,
2901 buf, 4, USB_CTRL_SET_TIMEOUT);
2903 bt_dev_err(hdev, "Failed to read uhw reg(%d)", err);
2907 *val = get_unaligned_le32(buf);
2908 bt_dev_dbg(hdev, "reg=%x, value=0x%08x", reg, *val);
2916 static int btusb_mtk_reg_read(struct btusb_data *data, u32 reg, u32 *val)
2918 int pipe, err, size = sizeof(u32);
2921 buf = kzalloc(size, GFP_KERNEL);
2925 pipe = usb_rcvctrlpipe(data->udev, 0);
2926 err = usb_control_msg(data->udev, pipe, 0x63,
2927 USB_TYPE_VENDOR | USB_DIR_IN,
2928 reg >> 16, reg & 0xffff,
2929 buf, size, USB_CTRL_SET_TIMEOUT);
2933 *val = get_unaligned_le32(buf);
2941 static int btusb_mtk_id_get(struct btusb_data *data, u32 reg, u32 *id)
2943 return btusb_mtk_reg_read(data, reg, id);
2946 static int btusb_mtk_setup(struct hci_dev *hdev)
2948 struct btusb_data *data = hci_get_drvdata(hdev);
2949 struct btmtk_hci_wmt_params wmt_params;
2950 ktime_t calltime, delta, rettime;
2951 struct btmtk_tci_sleep tci_sleep;
2952 unsigned long long duration;
2953 struct sk_buff *skb;
2957 char fw_bin_name[64];
2961 calltime = ktime_get();
2963 err = btusb_mtk_id_get(data, 0x80000008, &dev_id);
2965 bt_dev_err(hdev, "Failed to get device id (%d)", err);
2970 err = btusb_mtk_id_get(data, 0x70010200, &dev_id);
2972 bt_dev_err(hdev, "Failed to get device id (%d)", err);
2975 err = btusb_mtk_id_get(data, 0x80021004, &fw_version);
2977 bt_dev_err(hdev, "Failed to get fw version (%d)", err);
2984 fwname = FIRMWARE_MT7663;
2987 fwname = FIRMWARE_MT7668;
2991 snprintf(fw_bin_name, sizeof(fw_bin_name),
2992 "mediatek/BT_RAM_CODE_MT%04x_1_%x_hdr.bin",
2993 dev_id & 0xffff, (fw_version & 0xff) + 1);
2994 err = btmtk_setup_firmware_79xx(hdev, fw_bin_name,
2995 btusb_mtk_hci_wmt_sync);
2997 bt_dev_err(hdev, "Failed to set up firmware (%d)", err);
3001 /* It's Device EndPoint Reset Option Register */
3002 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, MTK_EP_RST_IN_OUT_OPT);
3004 /* Enable Bluetooth protocol */
3006 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3007 wmt_params.flag = 0;
3008 wmt_params.dlen = sizeof(param);
3009 wmt_params.data = ¶m;
3010 wmt_params.status = NULL;
3012 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3014 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3018 hci_set_msft_opcode(hdev, 0xFD30);
3019 hci_set_aosp_capable(hdev);
3022 bt_dev_err(hdev, "Unsupported hardware variant (%08x)",
3027 /* Query whether the firmware is already download */
3028 wmt_params.op = BTMTK_WMT_SEMAPHORE;
3029 wmt_params.flag = 1;
3030 wmt_params.dlen = 0;
3031 wmt_params.data = NULL;
3032 wmt_params.status = &status;
3034 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3036 bt_dev_err(hdev, "Failed to query firmware status (%d)", err);
3040 if (status == BTMTK_WMT_PATCH_DONE) {
3041 bt_dev_info(hdev, "firmware already downloaded");
3042 goto ignore_setup_fw;
3045 /* Setup a firmware which the device definitely requires */
3046 err = btmtk_setup_firmware(hdev, fwname,
3047 btusb_mtk_hci_wmt_sync);
3052 err = readx_poll_timeout(btusb_mtk_func_query, hdev, status,
3053 status < 0 || status != BTMTK_WMT_ON_PROGRESS,
3055 /* -ETIMEDOUT happens */
3059 /* The other errors happen in btusb_mtk_func_query */
3063 if (status == BTMTK_WMT_ON_DONE) {
3064 bt_dev_info(hdev, "function already on");
3065 goto ignore_func_on;
3068 /* Enable Bluetooth protocol */
3070 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3071 wmt_params.flag = 0;
3072 wmt_params.dlen = sizeof(param);
3073 wmt_params.data = ¶m;
3074 wmt_params.status = NULL;
3076 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3078 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3083 /* Apply the low power environment setup */
3084 tci_sleep.mode = 0x5;
3085 tci_sleep.duration = cpu_to_le16(0x640);
3086 tci_sleep.host_duration = cpu_to_le16(0x640);
3087 tci_sleep.host_wakeup_pin = 0;
3088 tci_sleep.time_compensation = 0;
3090 skb = __hci_cmd_sync(hdev, 0xfc7a, sizeof(tci_sleep), &tci_sleep,
3094 bt_dev_err(hdev, "Failed to apply low power setting (%d)", err);
3100 rettime = ktime_get();
3101 delta = ktime_sub(rettime, calltime);
3102 duration = (unsigned long long)ktime_to_ns(delta) >> 10;
3104 bt_dev_info(hdev, "Device setup in %llu usecs", duration);
3109 static int btusb_mtk_shutdown(struct hci_dev *hdev)
3111 struct btmtk_hci_wmt_params wmt_params;
3115 /* Disable the device */
3116 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3117 wmt_params.flag = 0;
3118 wmt_params.dlen = sizeof(param);
3119 wmt_params.data = ¶m;
3120 wmt_params.status = NULL;
3122 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3124 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3131 static void btusb_mtk_cmd_timeout(struct hci_dev *hdev)
3133 struct btusb_data *data = hci_get_drvdata(hdev);
3137 /* It's MediaTek specific bluetooth reset mechanism via USB */
3138 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
3139 bt_dev_err(hdev, "last reset failed? Not resetting again");
3143 err = usb_autopm_get_interface(data->intf);
3147 btusb_stop_traffic(data);
3148 usb_kill_anchored_urbs(&data->tx_anchor);
3150 /* It's Device EndPoint Reset Option Register */
3151 bt_dev_dbg(hdev, "Initiating reset mechanism via uhw");
3152 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, MTK_EP_RST_IN_OUT_OPT);
3153 btusb_mtk_uhw_reg_read(data, MTK_BT_WDT_STATUS, &val);
3155 /* Reset the bluetooth chip via USB interface. */
3156 btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, 1);
3157 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT, 0x000000FF);
3158 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT, &val);
3159 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT1, 0x000000FF);
3160 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT1, &val);
3161 /* MT7921 need to delay 20ms between toggle reset bit */
3163 btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, 0);
3164 btusb_mtk_uhw_reg_read(data, MTK_BT_SUBSYS_RST, &val);
3166 /* Poll the register until reset is completed */
3168 btusb_mtk_uhw_reg_read(data, MTK_BT_MISC, &val);
3169 if (val & MTK_BT_RST_DONE) {
3170 bt_dev_dbg(hdev, "Bluetooth Reset Successfully");
3174 bt_dev_dbg(hdev, "Polling Bluetooth Reset CR");
3176 msleep(MTK_BT_RESET_WAIT_MS);
3177 } while (retry < MTK_BT_RESET_NUM_TRIES);
3179 btusb_mtk_id_get(data, 0x70010200, &val);
3181 bt_dev_err(hdev, "Can't get device id, subsys reset fail.");
3183 usb_queue_reset_device(data->intf);
3185 clear_bit(BTUSB_HW_RESET_ACTIVE, &data->flags);
3188 static int btusb_recv_acl_mtk(struct hci_dev *hdev, struct sk_buff *skb)
3190 struct btusb_data *data = hci_get_drvdata(hdev);
3191 u16 handle = le16_to_cpu(hci_acl_hdr(skb)->handle);
3194 case 0xfc6f: /* Firmware dump from device */
3195 /* When the firmware hangs, the device can no longer
3196 * suspend and thus disable auto-suspend.
3198 usb_disable_autosuspend(data->udev);
3200 case 0x05ff: /* Firmware debug logging 1 */
3201 case 0x05fe: /* Firmware debug logging 2 */
3202 return hci_recv_diag(hdev, skb);
3205 return hci_recv_frame(hdev, skb);
3209 /* Configure an out-of-band gpio as wake-up pin, if specified in device tree */
3210 static int marvell_config_oob_wake(struct hci_dev *hdev)
3212 struct sk_buff *skb;
3213 struct btusb_data *data = hci_get_drvdata(hdev);
3214 struct device *dev = &data->udev->dev;
3215 u16 pin, gap, opcode;
3219 /* Move on if no wakeup pin specified */
3220 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) ||
3221 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap))
3224 /* Vendor specific command to configure a GPIO as wake-up pin */
3225 opcode = hci_opcode_pack(0x3F, 0x59);
3226 cmd[0] = opcode & 0xFF;
3227 cmd[1] = opcode >> 8;
3228 cmd[2] = 2; /* length of parameters that follow */
3230 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */
3232 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
3234 bt_dev_err(hdev, "%s: No memory", __func__);
3238 skb_put_data(skb, cmd, sizeof(cmd));
3239 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT;
3241 ret = btusb_send_frame(hdev, skb);
3243 bt_dev_err(hdev, "%s: configuration failed", __func__);
3252 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
3253 const bdaddr_t *bdaddr)
3255 struct sk_buff *skb;
3260 buf[1] = sizeof(bdaddr_t);
3261 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
3263 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
3266 bt_dev_err(hdev, "changing Marvell device address failed (%ld)",
3275 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
3276 const bdaddr_t *bdaddr)
3278 struct sk_buff *skb;
3285 buf[3] = sizeof(bdaddr_t);
3286 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
3288 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
3291 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
3299 static int btusb_set_bdaddr_wcn6855(struct hci_dev *hdev,
3300 const bdaddr_t *bdaddr)
3302 struct sk_buff *skb;
3306 memcpy(buf, bdaddr, sizeof(bdaddr_t));
3308 skb = __hci_cmd_sync_ev(hdev, 0xfc14, sizeof(buf), buf,
3309 HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT);
3312 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
3320 #define QCA_MEMDUMP_ACL_HANDLE 0x2EDD
3321 #define QCA_MEMDUMP_SIZE_MAX 0x100000
3322 #define QCA_MEMDUMP_VSE_CLASS 0x01
3323 #define QCA_MEMDUMP_MSG_TYPE 0x08
3324 #define QCA_MEMDUMP_PKT_SIZE 248
3325 #define QCA_LAST_SEQUENCE_NUM 0xffff
3327 struct qca_dump_hdr {
3335 __le32 ram_dump_size;
3342 static void btusb_dump_hdr_qca(struct hci_dev *hdev, struct sk_buff *skb)
3345 struct btusb_data *btdata = hci_get_drvdata(hdev);
3347 snprintf(buf, sizeof(buf), "Controller Name: 0x%x\n",
3348 btdata->qca_dump.controller_id);
3349 skb_put_data(skb, buf, strlen(buf));
3351 snprintf(buf, sizeof(buf), "Firmware Version: 0x%x\n",
3352 btdata->qca_dump.fw_version);
3353 skb_put_data(skb, buf, strlen(buf));
3355 snprintf(buf, sizeof(buf), "Driver: %s\nVendor: qca\n",
3357 skb_put_data(skb, buf, strlen(buf));
3359 snprintf(buf, sizeof(buf), "VID: 0x%x\nPID:0x%x\n",
3360 btdata->qca_dump.id_vendor, btdata->qca_dump.id_product);
3361 skb_put_data(skb, buf, strlen(buf));
3363 snprintf(buf, sizeof(buf), "Lmp Subversion: 0x%x\n",
3365 skb_put_data(skb, buf, strlen(buf));
3368 static void btusb_coredump_qca(struct hci_dev *hdev)
3370 static const u8 param[] = { 0x26 };
3371 struct sk_buff *skb;
3373 skb = __hci_cmd_sync(hdev, 0xfc0c, 1, param, HCI_CMD_TIMEOUT);
3375 bt_dev_err(hdev, "%s: triggle crash failed (%ld)", __func__, PTR_ERR(skb));
3380 * ==0: not a dump pkt.
3381 * < 0: fails to handle a dump pkt
3384 static int handle_dump_pkt_qca(struct hci_dev *hdev, struct sk_buff *skb)
3389 unsigned int sk_len;
3393 struct hci_event_hdr *event_hdr;
3394 struct hci_acl_hdr *acl_hdr;
3395 struct qca_dump_hdr *dump_hdr;
3396 struct btusb_data *btdata = hci_get_drvdata(hdev);
3397 struct usb_device *udev = btdata->udev;
3399 pkt_type = hci_skb_pkt_type(skb);
3403 if (pkt_type == HCI_ACLDATA_PKT) {
3404 acl_hdr = hci_acl_hdr(skb);
3405 if (le16_to_cpu(acl_hdr->handle) != QCA_MEMDUMP_ACL_HANDLE)
3407 sk_ptr += HCI_ACL_HDR_SIZE;
3408 sk_len -= HCI_ACL_HDR_SIZE;
3409 event_hdr = (struct hci_event_hdr *)sk_ptr;
3411 event_hdr = hci_event_hdr(skb);
3414 if ((event_hdr->evt != HCI_VENDOR_PKT)
3415 || (event_hdr->plen != (sk_len - HCI_EVENT_HDR_SIZE)))
3418 sk_ptr += HCI_EVENT_HDR_SIZE;
3419 sk_len -= HCI_EVENT_HDR_SIZE;
3421 dump_hdr = (struct qca_dump_hdr *)sk_ptr;
3422 if ((sk_len < offsetof(struct qca_dump_hdr, data))
3423 || (dump_hdr->vse_class != QCA_MEMDUMP_VSE_CLASS)
3424 || (dump_hdr->msg_type != QCA_MEMDUMP_MSG_TYPE))
3427 /*it is dump pkt now*/
3428 seqno = le16_to_cpu(dump_hdr->seqno);
3430 set_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags);
3431 dump_size = le32_to_cpu(dump_hdr->ram_dump_size);
3432 if (!dump_size || (dump_size > QCA_MEMDUMP_SIZE_MAX)) {
3434 bt_dev_err(hdev, "Invalid memdump size(%u)",
3439 ret = hci_devcd_init(hdev, dump_size);
3441 bt_dev_err(hdev, "memdump init error(%d)", ret);
3445 btdata->qca_dump.ram_dump_size = dump_size;
3446 btdata->qca_dump.ram_dump_seqno = 0;
3447 sk_ptr += offsetof(struct qca_dump_hdr, data0);
3448 sk_len -= offsetof(struct qca_dump_hdr, data0);
3450 usb_disable_autosuspend(udev);
3451 bt_dev_info(hdev, "%s memdump size(%u)\n",
3452 (pkt_type == HCI_ACLDATA_PKT) ? "ACL" : "event",
3455 sk_ptr += offsetof(struct qca_dump_hdr, data);
3456 sk_len -= offsetof(struct qca_dump_hdr, data);
3459 if (!btdata->qca_dump.ram_dump_size) {
3461 bt_dev_err(hdev, "memdump is not active");
3465 if ((seqno > btdata->qca_dump.ram_dump_seqno + 1) && (seqno != QCA_LAST_SEQUENCE_NUM)) {
3466 dump_size = QCA_MEMDUMP_PKT_SIZE * (seqno - btdata->qca_dump.ram_dump_seqno - 1);
3467 hci_devcd_append_pattern(hdev, 0x0, dump_size);
3469 "expected memdump seqno(%u) is not received(%u)\n",
3470 btdata->qca_dump.ram_dump_seqno, seqno);
3471 btdata->qca_dump.ram_dump_seqno = seqno;
3476 skb_pull(skb, skb->len - sk_len);
3477 hci_devcd_append(hdev, skb);
3478 btdata->qca_dump.ram_dump_seqno++;
3479 if (seqno == QCA_LAST_SEQUENCE_NUM) {
3481 "memdump done: pkts(%u), total(%u)\n",
3482 btdata->qca_dump.ram_dump_seqno, btdata->qca_dump.ram_dump_size);
3484 hci_devcd_complete(hdev);
3490 if (btdata->qca_dump.ram_dump_size)
3491 usb_enable_autosuspend(udev);
3492 btdata->qca_dump.ram_dump_size = 0;
3493 btdata->qca_dump.ram_dump_seqno = 0;
3494 clear_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags);
3501 static int btusb_recv_acl_qca(struct hci_dev *hdev, struct sk_buff *skb)
3503 if (handle_dump_pkt_qca(hdev, skb))
3505 return hci_recv_frame(hdev, skb);
3508 static int btusb_recv_evt_qca(struct hci_dev *hdev, struct sk_buff *skb)
3510 if (handle_dump_pkt_qca(hdev, skb))
3512 return hci_recv_frame(hdev, skb);
3516 #define QCA_DFU_PACKET_LEN 4096
3518 #define QCA_GET_TARGET_VERSION 0x09
3519 #define QCA_CHECK_STATUS 0x05
3520 #define QCA_DFU_DOWNLOAD 0x01
3522 #define QCA_SYSCFG_UPDATED 0x40
3523 #define QCA_PATCH_UPDATED 0x80
3524 #define QCA_DFU_TIMEOUT 3000
3525 #define QCA_FLAG_MULTI_NVM 0x80
3526 #define QCA_BT_RESET_WAIT_MS 100
3528 #define WCN6855_2_0_RAM_VERSION_GF 0x400c1200
3529 #define WCN6855_2_1_RAM_VERSION_GF 0x400c1211
3531 struct qca_version {
3533 __le32 patch_version;
3541 struct qca_rampatch_version {
3542 __le16 rom_version_high;
3543 __le16 rom_version_low;
3544 __le16 patch_version;
3547 struct qca_device_info {
3549 u8 rampatch_hdr; /* length of header in rampatch */
3550 u8 nvm_hdr; /* length of header in NVM */
3551 u8 ver_offset; /* offset of version structure in rampatch */
3554 static const struct qca_device_info qca_devices_table[] = {
3555 { 0x00000100, 20, 4, 8 }, /* Rome 1.0 */
3556 { 0x00000101, 20, 4, 8 }, /* Rome 1.1 */
3557 { 0x00000200, 28, 4, 16 }, /* Rome 2.0 */
3558 { 0x00000201, 28, 4, 16 }, /* Rome 2.1 */
3559 { 0x00000300, 28, 4, 16 }, /* Rome 3.0 */
3560 { 0x00000302, 28, 4, 16 }, /* Rome 3.2 */
3561 { 0x00130100, 40, 4, 16 }, /* WCN6855 1.0 */
3562 { 0x00130200, 40, 4, 16 }, /* WCN6855 2.0 */
3563 { 0x00130201, 40, 4, 16 }, /* WCN6855 2.1 */
3564 { 0x00190200, 40, 4, 16 }, /* WCN785x 2.0 */
3567 static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request,
3568 void *data, u16 size)
3573 buf = kmalloc(size, GFP_KERNEL);
3577 /* Found some of USB hosts have IOT issues with ours so that we should
3578 * not wait until HCI layer is ready.
3580 pipe = usb_rcvctrlpipe(udev, 0);
3581 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
3582 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
3584 dev_err(&udev->dev, "Failed to access otp area (%d)", err);
3588 memcpy(data, buf, size);
3596 static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
3597 const struct firmware *firmware,
3600 struct btusb_data *btdata = hci_get_drvdata(hdev);
3601 struct usb_device *udev = btdata->udev;
3602 size_t count, size, sent = 0;
3606 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
3610 count = firmware->size;
3612 size = min_t(size_t, count, hdr_size);
3613 memcpy(buf, firmware->data, size);
3615 /* USB patches should go down to controller through USB path
3616 * because binary format fits to go down through USB channel.
3617 * USB control path is for patching headers and USB bulk is for
3620 pipe = usb_sndctrlpipe(udev, 0);
3621 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
3622 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
3624 bt_dev_err(hdev, "Failed to send headers (%d)", err);
3631 /* ep2 need time to switch from function acl to function dfu,
3632 * so we add 20ms delay here.
3637 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
3639 memcpy(buf, firmware->data + sent, size);
3641 pipe = usb_sndbulkpipe(udev, 0x02);
3642 err = usb_bulk_msg(udev, pipe, buf, size, &len,
3645 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)",
3646 sent, firmware->size, err);
3651 bt_dev_err(hdev, "Failed to get bulk buffer");
3665 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
3666 struct qca_version *ver,
3667 const struct qca_device_info *info)
3669 struct qca_rampatch_version *rver;
3670 const struct firmware *fw;
3671 u32 ver_rom, ver_patch, rver_rom;
3672 u16 rver_rom_low, rver_rom_high, rver_patch;
3676 ver_rom = le32_to_cpu(ver->rom_version);
3677 ver_patch = le32_to_cpu(ver->patch_version);
3679 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom);
3681 err = request_firmware(&fw, fwname, &hdev->dev);
3683 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)",
3688 bt_dev_info(hdev, "using rampatch file: %s", fwname);
3690 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
3691 rver_rom_low = le16_to_cpu(rver->rom_version_low);
3692 rver_patch = le16_to_cpu(rver->patch_version);
3694 if (ver_rom & ~0xffffU) {
3695 rver_rom_high = le16_to_cpu(rver->rom_version_high);
3696 rver_rom = rver_rom_high << 16 | rver_rom_low;
3698 rver_rom = rver_rom_low;
3701 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, "
3702 "firmware rome 0x%x build 0x%x",
3703 rver_rom, rver_patch, ver_rom, ver_patch);
3705 if (rver_rom != ver_rom || rver_patch <= ver_patch) {
3706 bt_dev_err(hdev, "rampatch file version did not match with firmware");
3711 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
3714 release_firmware(fw);
3719 static void btusb_generate_qca_nvm_name(char *fwname, size_t max_size,
3720 const struct qca_version *ver)
3722 u32 rom_version = le32_to_cpu(ver->rom_version);
3723 u16 flag = le16_to_cpu(ver->flag);
3725 if (((flag >> 8) & 0xff) == QCA_FLAG_MULTI_NVM) {
3726 /* The board_id should be split into two bytes
3727 * The 1st byte is chip ID, and the 2nd byte is platform ID
3728 * For example, board ID 0x010A, 0x01 is platform ID. 0x0A is chip ID
3729 * we have several platforms, and platform IDs are continuously added
3731 * 0x00 is for Mobile
3733 * 0x02 is for Automotive
3734 * 0x03 is for Consumer electronic
3736 u16 board_id = (ver->chip_id << 8) + ver->platform_id;
3737 const char *variant;
3739 switch (le32_to_cpu(ver->ram_version)) {
3740 case WCN6855_2_0_RAM_VERSION_GF:
3741 case WCN6855_2_1_RAM_VERSION_GF:
3749 if (board_id == 0) {
3750 snprintf(fwname, max_size, "qca/nvm_usb_%08x%s.bin",
3751 rom_version, variant);
3753 snprintf(fwname, max_size, "qca/nvm_usb_%08x%s_%04x.bin",
3754 rom_version, variant, board_id);
3757 snprintf(fwname, max_size, "qca/nvm_usb_%08x.bin",
3763 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
3764 struct qca_version *ver,
3765 const struct qca_device_info *info)
3767 const struct firmware *fw;
3771 btusb_generate_qca_nvm_name(fwname, sizeof(fwname), ver);
3773 err = request_firmware(&fw, fwname, &hdev->dev);
3775 bt_dev_err(hdev, "failed to request NVM file: %s (%d)",
3780 bt_dev_info(hdev, "using NVM file: %s", fwname);
3782 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
3784 release_firmware(fw);
3789 /* identify the ROM version and check whether patches are needed */
3790 static bool btusb_qca_need_patch(struct usb_device *udev)
3792 struct qca_version ver;
3794 if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3797 /* only low ROM versions need patches */
3798 return !(le32_to_cpu(ver.rom_version) & ~0xffffU);
3801 static int btusb_setup_qca(struct hci_dev *hdev)
3803 struct btusb_data *btdata = hci_get_drvdata(hdev);
3804 struct usb_device *udev = btdata->udev;
3805 const struct qca_device_info *info = NULL;
3806 struct qca_version ver;
3811 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3816 ver_rom = le32_to_cpu(ver.rom_version);
3818 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
3819 if (ver_rom == qca_devices_table[i].rom_version)
3820 info = &qca_devices_table[i];
3823 /* If the rom_version is not matched in the qca_devices_table
3824 * and the high ROM version is not zero, we assume this chip no
3825 * need to load the rampatch and nvm.
3827 if (ver_rom & ~0xffffU)
3830 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom);
3834 err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status,
3839 if (!(status & QCA_PATCH_UPDATED)) {
3840 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
3845 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3850 btdata->qca_dump.fw_version = le32_to_cpu(ver.patch_version);
3851 btdata->qca_dump.controller_id = le32_to_cpu(ver.rom_version);
3853 if (!(status & QCA_SYSCFG_UPDATED)) {
3854 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
3858 /* WCN6855 2.1 and later will reset to apply firmware downloaded here, so
3859 * wait ~100ms for reset Done then go ahead, otherwise, it maybe
3860 * cause potential enable failure.
3862 if (info->rom_version >= 0x00130201)
3863 msleep(QCA_BT_RESET_WAIT_MS);
3866 /* Mark HCI_OP_ENHANCED_SETUP_SYNC_CONN as broken as it doesn't seem to
3867 * work with the likes of HSP/HFP mSBC.
3869 set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks);
3874 static inline int __set_diag_interface(struct hci_dev *hdev)
3876 struct btusb_data *data = hci_get_drvdata(hdev);
3877 struct usb_interface *intf = data->diag;
3883 data->diag_tx_ep = NULL;
3884 data->diag_rx_ep = NULL;
3886 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
3887 struct usb_endpoint_descriptor *ep_desc;
3889 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
3891 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
3892 data->diag_tx_ep = ep_desc;
3896 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
3897 data->diag_rx_ep = ep_desc;
3902 if (!data->diag_tx_ep || !data->diag_rx_ep) {
3903 bt_dev_err(hdev, "invalid diagnostic descriptors");
3910 static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable)
3912 struct btusb_data *data = hci_get_drvdata(hdev);
3913 struct sk_buff *skb;
3917 if (!data->diag_tx_ep)
3918 return ERR_PTR(-ENODEV);
3920 urb = usb_alloc_urb(0, GFP_KERNEL);
3922 return ERR_PTR(-ENOMEM);
3924 skb = bt_skb_alloc(2, GFP_KERNEL);
3927 return ERR_PTR(-ENOMEM);
3930 skb_put_u8(skb, 0xf0);
3931 skb_put_u8(skb, enable);
3933 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress);
3935 usb_fill_bulk_urb(urb, data->udev, pipe,
3936 skb->data, skb->len, btusb_tx_complete, skb);
3938 skb->dev = (void *)hdev;
3943 static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable)
3945 struct btusb_data *data = hci_get_drvdata(hdev);
3951 if (!test_bit(HCI_RUNNING, &hdev->flags))
3954 urb = alloc_diag_urb(hdev, enable);
3956 return PTR_ERR(urb);
3958 return submit_or_queue_tx_urb(hdev, urb);
3962 static irqreturn_t btusb_oob_wake_handler(int irq, void *priv)
3964 struct btusb_data *data = priv;
3966 pm_wakeup_event(&data->udev->dev, 0);
3969 /* Disable only if not already disabled (keep it balanced) */
3970 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
3971 disable_irq_nosync(irq);
3972 disable_irq_wake(irq);
3977 static const struct of_device_id btusb_match_table[] = {
3978 { .compatible = "usb1286,204e" },
3979 { .compatible = "usbcf3,e300" }, /* QCA6174A */
3980 { .compatible = "usb4ca,301a" }, /* QCA6174A (Lite-On) */
3983 MODULE_DEVICE_TABLE(of, btusb_match_table);
3985 /* Use an oob wakeup pin? */
3986 static int btusb_config_oob_wake(struct hci_dev *hdev)
3988 struct btusb_data *data = hci_get_drvdata(hdev);
3989 struct device *dev = &data->udev->dev;
3992 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
3994 if (!of_match_device(btusb_match_table, dev))
3997 /* Move on if no IRQ specified */
3998 irq = of_irq_get_byname(dev->of_node, "wakeup");
4000 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__);
4004 irq_set_status_flags(irq, IRQ_NOAUTOEN);
4005 ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler,
4006 0, "OOB Wake-on-BT", data);
4008 bt_dev_err(hdev, "%s: IRQ request failed", __func__);
4012 ret = device_init_wakeup(dev, true);
4014 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__);
4018 data->oob_wake_irq = irq;
4019 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq);
4024 static void btusb_check_needs_reset_resume(struct usb_interface *intf)
4026 if (dmi_check_system(btusb_needs_reset_resume_table))
4027 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
4030 static bool btusb_wakeup(struct hci_dev *hdev)
4032 struct btusb_data *data = hci_get_drvdata(hdev);
4034 return device_may_wakeup(&data->udev->dev);
4037 static int btusb_shutdown_qca(struct hci_dev *hdev)
4039 struct sk_buff *skb;
4041 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
4043 bt_dev_err(hdev, "HCI reset during shutdown failed");
4044 return PTR_ERR(skb);
4051 static ssize_t force_poll_sync_read(struct file *file, char __user *user_buf,
4052 size_t count, loff_t *ppos)
4054 struct btusb_data *data = file->private_data;
4057 buf[0] = data->poll_sync ? 'Y' : 'N';
4060 return simple_read_from_buffer(user_buf, count, ppos, buf, 2);
4063 static ssize_t force_poll_sync_write(struct file *file,
4064 const char __user *user_buf,
4065 size_t count, loff_t *ppos)
4067 struct btusb_data *data = file->private_data;
4071 err = kstrtobool_from_user(user_buf, count, &enable);
4075 /* Only allow changes while the adapter is down */
4076 if (test_bit(HCI_UP, &data->hdev->flags))
4079 if (data->poll_sync == enable)
4082 data->poll_sync = enable;
4087 static const struct file_operations force_poll_sync_fops = {
4088 .open = simple_open,
4089 .read = force_poll_sync_read,
4090 .write = force_poll_sync_write,
4091 .llseek = default_llseek,
4094 static int btusb_probe(struct usb_interface *intf,
4095 const struct usb_device_id *id)
4097 struct usb_endpoint_descriptor *ep_desc;
4098 struct gpio_desc *reset_gpio;
4099 struct btusb_data *data;
4100 struct hci_dev *hdev;
4101 unsigned ifnum_base;
4102 int i, err, priv_size;
4104 BT_DBG("intf %p id %p", intf, id);
4106 if ((id->driver_info & BTUSB_IFNUM_2) &&
4107 (intf->cur_altsetting->desc.bInterfaceNumber != 0) &&
4108 (intf->cur_altsetting->desc.bInterfaceNumber != 2))
4111 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber;
4113 if (!id->driver_info) {
4114 const struct usb_device_id *match;
4116 match = usb_match_id(intf, blacklist_table);
4121 if (id->driver_info == BTUSB_IGNORE)
4124 if (id->driver_info & BTUSB_ATH3012) {
4125 struct usb_device *udev = interface_to_usbdev(intf);
4127 /* Old firmware would otherwise let ath3k driver load
4128 * patch and sysconfig files
4130 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 &&
4131 !btusb_qca_need_patch(udev))
4135 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
4139 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
4140 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
4142 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
4143 data->intr_ep = ep_desc;
4147 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
4148 data->bulk_tx_ep = ep_desc;
4152 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
4153 data->bulk_rx_ep = ep_desc;
4158 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
4161 if (id->driver_info & BTUSB_AMP) {
4162 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
4163 data->cmdreq = 0x2b;
4165 data->cmdreq_type = USB_TYPE_CLASS;
4166 data->cmdreq = 0x00;
4169 data->udev = interface_to_usbdev(intf);
4172 INIT_WORK(&data->work, btusb_work);
4173 INIT_WORK(&data->waker, btusb_waker);
4174 INIT_DELAYED_WORK(&data->rx_work, btusb_rx_work);
4176 skb_queue_head_init(&data->acl_q);
4178 init_usb_anchor(&data->deferred);
4179 init_usb_anchor(&data->tx_anchor);
4180 spin_lock_init(&data->txlock);
4182 init_usb_anchor(&data->intr_anchor);
4183 init_usb_anchor(&data->bulk_anchor);
4184 init_usb_anchor(&data->isoc_anchor);
4185 init_usb_anchor(&data->diag_anchor);
4186 init_usb_anchor(&data->ctrl_anchor);
4187 spin_lock_init(&data->rxlock);
4191 data->recv_event = hci_recv_frame;
4192 data->recv_bulk = btusb_recv_bulk;
4194 if (id->driver_info & BTUSB_INTEL_COMBINED) {
4195 /* Allocate extra space for Intel device */
4196 priv_size += sizeof(struct btintel_data);
4198 /* Override the rx handlers */
4199 data->recv_event = btusb_recv_event_intel;
4200 data->recv_bulk = btusb_recv_bulk_intel;
4201 } else if (id->driver_info & BTUSB_REALTEK) {
4202 /* Allocate extra space for Realtek device */
4203 priv_size += sizeof(struct btrealtek_data);
4206 data->recv_acl = hci_recv_frame;
4208 hdev = hci_alloc_dev_priv(priv_size);
4212 hdev->bus = HCI_USB;
4213 hci_set_drvdata(hdev, data);
4215 if (id->driver_info & BTUSB_AMP)
4216 hdev->dev_type = HCI_AMP;
4218 hdev->dev_type = HCI_PRIMARY;
4222 SET_HCIDEV_DEV(hdev, &intf->dev);
4224 reset_gpio = gpiod_get_optional(&data->udev->dev, "reset",
4226 if (IS_ERR(reset_gpio)) {
4227 err = PTR_ERR(reset_gpio);
4229 } else if (reset_gpio) {
4230 data->reset_gpio = reset_gpio;
4233 hdev->open = btusb_open;
4234 hdev->close = btusb_close;
4235 hdev->flush = btusb_flush;
4236 hdev->send = btusb_send_frame;
4237 hdev->notify = btusb_notify;
4238 hdev->wakeup = btusb_wakeup;
4241 err = btusb_config_oob_wake(hdev);
4245 /* Marvell devices may need a specific chip configuration */
4246 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) {
4247 err = marvell_config_oob_wake(hdev);
4252 if (id->driver_info & BTUSB_CW6622)
4253 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
4255 if (id->driver_info & BTUSB_BCM2045)
4256 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
4258 if (id->driver_info & BTUSB_BCM92035)
4259 hdev->setup = btusb_setup_bcm92035;
4261 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
4262 (id->driver_info & BTUSB_BCM_PATCHRAM)) {
4263 hdev->manufacturer = 15;
4264 hdev->setup = btbcm_setup_patchram;
4265 hdev->set_diag = btusb_bcm_set_diag;
4266 hdev->set_bdaddr = btbcm_set_bdaddr;
4268 /* Broadcom LM_DIAG Interface numbers are hardcoded */
4269 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
4272 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
4273 (id->driver_info & BTUSB_BCM_APPLE)) {
4274 hdev->manufacturer = 15;
4275 hdev->setup = btbcm_setup_apple;
4276 hdev->set_diag = btusb_bcm_set_diag;
4278 /* Broadcom LM_DIAG Interface numbers are hardcoded */
4279 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
4282 /* Combined Intel Device setup to support multiple setup routine */
4283 if (id->driver_info & BTUSB_INTEL_COMBINED) {
4284 err = btintel_configure_setup(hdev, btusb_driver.name);
4288 /* Transport specific configuration */
4289 hdev->send = btusb_send_frame_intel;
4290 hdev->cmd_timeout = btusb_intel_cmd_timeout;
4292 if (id->driver_info & BTUSB_INTEL_NO_WBS_SUPPORT)
4293 btintel_set_flag(hdev, INTEL_ROM_LEGACY_NO_WBS_SUPPORT);
4295 if (id->driver_info & BTUSB_INTEL_BROKEN_INITIAL_NCMD)
4296 btintel_set_flag(hdev, INTEL_BROKEN_INITIAL_NCMD);
4298 if (id->driver_info & BTUSB_INTEL_BROKEN_SHUTDOWN_LED)
4299 btintel_set_flag(hdev, INTEL_BROKEN_SHUTDOWN_LED);
4302 if (id->driver_info & BTUSB_MARVELL)
4303 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
4305 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_MTK) &&
4306 (id->driver_info & BTUSB_MEDIATEK)) {
4307 hdev->setup = btusb_mtk_setup;
4308 hdev->shutdown = btusb_mtk_shutdown;
4309 hdev->manufacturer = 70;
4310 hdev->cmd_timeout = btusb_mtk_cmd_timeout;
4311 hdev->set_bdaddr = btmtk_set_bdaddr;
4312 set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks);
4313 set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
4314 data->recv_acl = btusb_recv_acl_mtk;
4317 if (id->driver_info & BTUSB_SWAVE) {
4318 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
4319 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
4322 if (id->driver_info & BTUSB_INTEL_BOOT) {
4323 hdev->manufacturer = 2;
4324 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
4327 if (id->driver_info & BTUSB_ATH3012) {
4328 data->setup_on_usb = btusb_setup_qca;
4329 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
4330 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4331 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
4334 if (id->driver_info & BTUSB_QCA_ROME) {
4335 data->setup_on_usb = btusb_setup_qca;
4336 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
4337 hdev->cmd_timeout = btusb_qca_cmd_timeout;
4338 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4339 btusb_check_needs_reset_resume(intf);
4342 if (id->driver_info & BTUSB_QCA_WCN6855) {
4343 data->qca_dump.id_vendor = id->idVendor;
4344 data->qca_dump.id_product = id->idProduct;
4345 data->recv_event = btusb_recv_evt_qca;
4346 data->recv_acl = btusb_recv_acl_qca;
4347 hci_devcd_register(hdev, btusb_coredump_qca, btusb_dump_hdr_qca, NULL);
4348 data->setup_on_usb = btusb_setup_qca;
4349 hdev->shutdown = btusb_shutdown_qca;
4350 hdev->set_bdaddr = btusb_set_bdaddr_wcn6855;
4351 hdev->cmd_timeout = btusb_qca_cmd_timeout;
4352 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4353 hci_set_msft_opcode(hdev, 0xFD70);
4356 if (id->driver_info & BTUSB_AMP) {
4357 /* AMP controllers do not support SCO packets */
4360 /* Interface orders are hardcoded in the specification */
4361 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1);
4362 data->isoc_ifnum = ifnum_base + 1;
4365 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_RTL) &&
4366 (id->driver_info & BTUSB_REALTEK)) {
4367 hdev->setup = btusb_setup_realtek;
4368 hdev->shutdown = btrtl_shutdown_realtek;
4369 hdev->cmd_timeout = btusb_rtl_cmd_timeout;
4371 /* Realtek devices need to set remote wakeup on auto-suspend */
4372 set_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags);
4373 set_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags);
4376 if (id->driver_info & BTUSB_ACTIONS_SEMI) {
4377 /* Support is advertised, but not implemented */
4378 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks);
4379 set_bit(HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER, &hdev->quirks);
4380 set_bit(HCI_QUIRK_BROKEN_SET_RPA_TIMEOUT, &hdev->quirks);
4381 set_bit(HCI_QUIRK_BROKEN_EXT_SCAN, &hdev->quirks);
4385 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
4387 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
4388 if (!disable_scofix)
4389 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
4392 if (id->driver_info & BTUSB_BROKEN_ISOC)
4395 if (id->driver_info & BTUSB_WIDEBAND_SPEECH)
4396 set_bit(HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED, &hdev->quirks);
4398 if (id->driver_info & BTUSB_VALID_LE_STATES)
4399 set_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks);
4401 if (id->driver_info & BTUSB_DIGIANSWER) {
4402 data->cmdreq_type = USB_TYPE_VENDOR;
4403 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
4406 if (id->driver_info & BTUSB_CSR) {
4407 struct usb_device *udev = data->udev;
4408 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
4410 /* Old firmware would otherwise execute USB reset */
4411 if (bcdDevice < 0x117)
4412 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
4414 /* This must be set first in case we disable it for fakes */
4415 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4417 /* Fake CSR devices with broken commands */
4418 if (le16_to_cpu(udev->descriptor.idVendor) == 0x0a12 &&
4419 le16_to_cpu(udev->descriptor.idProduct) == 0x0001)
4420 hdev->setup = btusb_setup_csr;
4423 if (id->driver_info & BTUSB_SNIFFER) {
4424 struct usb_device *udev = data->udev;
4426 /* New sniffer firmware has crippled HCI interface */
4427 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
4428 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
4431 if (id->driver_info & BTUSB_INTEL_BOOT) {
4432 /* A bug in the bootloader causes that interrupt interface is
4433 * only enabled after receiving SetInterface(0, AltSetting=0).
4435 err = usb_set_interface(data->udev, 0, 0);
4437 BT_ERR("failed to set interface 0, alt 0 %d", err);
4443 err = usb_driver_claim_interface(&btusb_driver,
4449 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && data->diag) {
4450 if (!usb_driver_claim_interface(&btusb_driver,
4452 __set_diag_interface(hdev);
4457 if (enable_autosuspend)
4458 usb_enable_autosuspend(data->udev);
4460 data->poll_sync = enable_poll_sync;
4462 err = hci_register_dev(hdev);
4466 usb_set_intfdata(intf, data);
4468 debugfs_create_file("force_poll_sync", 0644, hdev->debugfs, data,
4469 &force_poll_sync_fops);
4474 if (data->reset_gpio)
4475 gpiod_put(data->reset_gpio);
4480 static void btusb_disconnect(struct usb_interface *intf)
4482 struct btusb_data *data = usb_get_intfdata(intf);
4483 struct hci_dev *hdev;
4485 BT_DBG("intf %p", intf);
4491 usb_set_intfdata(data->intf, NULL);
4494 usb_set_intfdata(data->isoc, NULL);
4497 usb_set_intfdata(data->diag, NULL);
4499 hci_unregister_dev(hdev);
4501 if (intf == data->intf) {
4503 usb_driver_release_interface(&btusb_driver, data->isoc);
4505 usb_driver_release_interface(&btusb_driver, data->diag);
4506 } else if (intf == data->isoc) {
4508 usb_driver_release_interface(&btusb_driver, data->diag);
4509 usb_driver_release_interface(&btusb_driver, data->intf);
4510 } else if (intf == data->diag) {
4511 usb_driver_release_interface(&btusb_driver, data->intf);
4513 usb_driver_release_interface(&btusb_driver, data->isoc);
4516 if (data->oob_wake_irq)
4517 device_init_wakeup(&data->udev->dev, false);
4519 if (data->reset_gpio)
4520 gpiod_put(data->reset_gpio);
4526 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
4528 struct btusb_data *data = usb_get_intfdata(intf);
4530 BT_DBG("intf %p", intf);
4532 if (data->suspend_count++)
4535 spin_lock_irq(&data->txlock);
4536 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
4537 set_bit(BTUSB_SUSPENDING, &data->flags);
4538 spin_unlock_irq(&data->txlock);
4540 spin_unlock_irq(&data->txlock);
4541 data->suspend_count--;
4545 cancel_work_sync(&data->work);
4547 btusb_stop_traffic(data);
4548 usb_kill_anchored_urbs(&data->tx_anchor);
4550 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) {
4551 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
4552 enable_irq_wake(data->oob_wake_irq);
4553 enable_irq(data->oob_wake_irq);
4556 /* For global suspend, Realtek devices lose the loaded fw
4557 * in them. But for autosuspend, firmware should remain.
4558 * Actually, it depends on whether the usb host sends
4559 * set feature (enable wakeup) or not.
4561 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) {
4562 if (PMSG_IS_AUTO(message) &&
4563 device_can_wakeup(&data->udev->dev))
4564 data->udev->do_remote_wakeup = 1;
4565 else if (!PMSG_IS_AUTO(message) &&
4566 !device_may_wakeup(&data->udev->dev)) {
4567 data->udev->do_remote_wakeup = 0;
4568 data->udev->reset_resume = 1;
4575 static void play_deferred(struct btusb_data *data)
4580 while ((urb = usb_get_from_anchor(&data->deferred))) {
4581 usb_anchor_urb(urb, &data->tx_anchor);
4583 err = usb_submit_urb(urb, GFP_ATOMIC);
4585 if (err != -EPERM && err != -ENODEV)
4586 BT_ERR("%s urb %p submission failed (%d)",
4587 data->hdev->name, urb, -err);
4588 kfree(urb->setup_packet);
4589 usb_unanchor_urb(urb);
4594 data->tx_in_flight++;
4598 /* Cleanup the rest deferred urbs. */
4599 while ((urb = usb_get_from_anchor(&data->deferred))) {
4600 kfree(urb->setup_packet);
4605 static int btusb_resume(struct usb_interface *intf)
4607 struct btusb_data *data = usb_get_intfdata(intf);
4608 struct hci_dev *hdev = data->hdev;
4611 BT_DBG("intf %p", intf);
4613 if (--data->suspend_count)
4616 /* Disable only if not already disabled (keep it balanced) */
4617 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
4618 disable_irq(data->oob_wake_irq);
4619 disable_irq_wake(data->oob_wake_irq);
4622 if (!test_bit(HCI_RUNNING, &hdev->flags))
4625 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
4626 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
4628 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
4633 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
4634 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
4636 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
4640 btusb_submit_bulk_urb(hdev, GFP_NOIO);
4643 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
4644 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
4645 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
4647 btusb_submit_isoc_urb(hdev, GFP_NOIO);
4650 spin_lock_irq(&data->txlock);
4651 play_deferred(data);
4652 clear_bit(BTUSB_SUSPENDING, &data->flags);
4653 spin_unlock_irq(&data->txlock);
4654 schedule_work(&data->work);
4659 usb_scuttle_anchored_urbs(&data->deferred);
4661 spin_lock_irq(&data->txlock);
4662 clear_bit(BTUSB_SUSPENDING, &data->flags);
4663 spin_unlock_irq(&data->txlock);
4669 #ifdef CONFIG_DEV_COREDUMP
4670 static void btusb_coredump(struct device *dev)
4672 struct btusb_data *data = dev_get_drvdata(dev);
4673 struct hci_dev *hdev = data->hdev;
4675 if (hdev->dump.coredump)
4676 hdev->dump.coredump(hdev);
4680 static struct usb_driver btusb_driver = {
4682 .probe = btusb_probe,
4683 .disconnect = btusb_disconnect,
4685 .suspend = btusb_suspend,
4686 .resume = btusb_resume,
4688 .id_table = btusb_table,
4689 .supports_autosuspend = 1,
4690 .disable_hub_initiated_lpm = 1,
4692 #ifdef CONFIG_DEV_COREDUMP
4695 .coredump = btusb_coredump,
4701 module_usb_driver(btusb_driver);
4703 module_param(disable_scofix, bool, 0644);
4704 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
4706 module_param(force_scofix, bool, 0644);
4707 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
4709 module_param(enable_autosuspend, bool, 0644);
4710 MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default");
4712 module_param(reset, bool, 0644);
4713 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
4715 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
4716 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
4717 MODULE_VERSION(VERSION);
4718 MODULE_LICENSE("GPL");