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 <asm/unaligned.h>
21 #include <net/bluetooth/bluetooth.h>
22 #include <net/bluetooth/hci_core.h>
30 static bool disable_scofix;
31 static bool force_scofix;
32 static bool enable_autosuspend = IS_ENABLED(CONFIG_BT_HCIBTUSB_AUTOSUSPEND);
34 static bool reset = true;
36 static struct usb_driver btusb_driver;
38 #define BTUSB_IGNORE 0x01
39 #define BTUSB_DIGIANSWER 0x02
40 #define BTUSB_CSR 0x04
41 #define BTUSB_SNIFFER 0x08
42 #define BTUSB_BCM92035 0x10
43 #define BTUSB_BROKEN_ISOC 0x20
44 #define BTUSB_WRONG_SCO_MTU 0x40
45 #define BTUSB_ATH3012 0x80
46 #define BTUSB_INTEL 0x100
47 #define BTUSB_INTEL_BOOT 0x200
48 #define BTUSB_BCM_PATCHRAM 0x400
49 #define BTUSB_MARVELL 0x800
50 #define BTUSB_SWAVE 0x1000
51 #define BTUSB_INTEL_NEW 0x2000
52 #define BTUSB_AMP 0x4000
53 #define BTUSB_QCA_ROME 0x8000
54 #define BTUSB_BCM_APPLE 0x10000
55 #define BTUSB_REALTEK 0x20000
56 #define BTUSB_BCM2045 0x40000
57 #define BTUSB_IFNUM_2 0x80000
58 #define BTUSB_CW6622 0x100000
59 #define BTUSB_MEDIATEK 0x200000
60 #define BTUSB_WIDEBAND_SPEECH 0x400000
61 #define BTUSB_VALID_LE_STATES 0x800000
62 #define BTUSB_QCA_WCN6855 0x1000000
63 #define BTUSB_INTEL_NEWGEN 0x2000000
65 static const struct usb_device_id btusb_table[] = {
66 /* Generic Bluetooth USB device */
67 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
69 /* Generic Bluetooth AMP device */
70 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP },
72 /* Generic Bluetooth USB interface */
73 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) },
75 /* Apple-specific (Broadcom) devices */
76 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01),
77 .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 },
79 /* MediaTek MT76x0E */
80 { USB_DEVICE(0x0e8d, 0x763f) },
82 /* Broadcom SoftSailing reporting vendor specific */
83 { USB_DEVICE(0x0a5c, 0x21e1) },
85 /* Apple MacBookPro 7,1 */
86 { USB_DEVICE(0x05ac, 0x8213) },
89 { USB_DEVICE(0x05ac, 0x8215) },
91 /* Apple MacBookPro6,2 */
92 { USB_DEVICE(0x05ac, 0x8218) },
94 /* Apple MacBookAir3,1, MacBookAir3,2 */
95 { USB_DEVICE(0x05ac, 0x821b) },
97 /* Apple MacBookAir4,1 */
98 { USB_DEVICE(0x05ac, 0x821f) },
100 /* Apple MacBookPro8,2 */
101 { USB_DEVICE(0x05ac, 0x821a) },
103 /* Apple MacMini5,1 */
104 { USB_DEVICE(0x05ac, 0x8281) },
106 /* AVM BlueFRITZ! USB v2.0 */
107 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE },
109 /* Bluetooth Ultraport Module from IBM */
110 { USB_DEVICE(0x04bf, 0x030a) },
112 /* ALPS Modules with non-standard id */
113 { USB_DEVICE(0x044e, 0x3001) },
114 { USB_DEVICE(0x044e, 0x3002) },
116 /* Ericsson with non-standard id */
117 { USB_DEVICE(0x0bdb, 0x1002) },
119 /* Canyon CN-BTU1 with HID interfaces */
120 { USB_DEVICE(0x0c10, 0x0000) },
122 /* Broadcom BCM20702A0 */
123 { USB_DEVICE(0x413c, 0x8197) },
125 /* Broadcom BCM20702B0 (Dynex/Insignia) */
126 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM },
128 /* Broadcom BCM43142A0 (Foxconn/Lenovo) */
129 { USB_VENDOR_AND_INTERFACE_INFO(0x105b, 0xff, 0x01, 0x01),
130 .driver_info = BTUSB_BCM_PATCHRAM },
132 /* Broadcom BCM920703 (HTC Vive) */
133 { USB_VENDOR_AND_INTERFACE_INFO(0x0bb4, 0xff, 0x01, 0x01),
134 .driver_info = BTUSB_BCM_PATCHRAM },
136 /* Foxconn - Hon Hai */
137 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01),
138 .driver_info = BTUSB_BCM_PATCHRAM },
140 /* Lite-On Technology - Broadcom based */
141 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01),
142 .driver_info = BTUSB_BCM_PATCHRAM },
144 /* Broadcom devices with vendor specific id */
145 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01),
146 .driver_info = BTUSB_BCM_PATCHRAM },
148 /* ASUSTek Computer - Broadcom based */
149 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01),
150 .driver_info = BTUSB_BCM_PATCHRAM },
152 /* Belkin F8065bf - Broadcom based */
153 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01),
154 .driver_info = BTUSB_BCM_PATCHRAM },
156 /* IMC Networks - Broadcom based */
157 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01),
158 .driver_info = BTUSB_BCM_PATCHRAM },
160 /* Dell Computer - Broadcom based */
161 { USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01),
162 .driver_info = BTUSB_BCM_PATCHRAM },
164 /* Toshiba Corp - Broadcom based */
165 { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01),
166 .driver_info = BTUSB_BCM_PATCHRAM },
168 /* Intel Bluetooth USB Bootloader (RAM module) */
169 { USB_DEVICE(0x8087, 0x0a5a),
170 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
172 { } /* Terminating entry */
175 MODULE_DEVICE_TABLE(usb, btusb_table);
177 static const struct usb_device_id blacklist_table[] = {
178 /* CSR BlueCore devices */
179 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
181 /* Broadcom BCM2033 without firmware */
182 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
184 /* Broadcom BCM2045 devices */
185 { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 },
187 /* Atheros 3011 with sflash firmware */
188 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
189 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
190 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE },
191 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
192 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
193 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
194 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
196 /* Atheros AR9285 Malbec with sflash firmware */
197 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
199 /* Atheros 3012 with sflash firmware */
200 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
201 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
202 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
203 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
204 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
205 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
206 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
207 { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 },
208 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
209 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
210 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
211 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
212 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
213 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
214 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
215 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
216 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
217 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
218 { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 },
219 { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 },
220 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
221 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
222 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
223 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
224 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
225 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
226 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
227 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
228 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
229 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
230 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
231 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
232 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
233 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 },
234 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
235 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
236 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
237 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
238 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
239 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
240 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
241 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 },
242 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
243 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
244 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
245 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
246 { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 },
247 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
248 { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 },
249 { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 },
251 /* Atheros AR5BBU12 with sflash firmware */
252 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
254 /* Atheros AR5BBU12 with sflash firmware */
255 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
256 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
258 /* QCA ROME chipset */
259 { USB_DEVICE(0x0cf3, 0x535b), .driver_info = BTUSB_QCA_ROME |
260 BTUSB_WIDEBAND_SPEECH },
261 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME |
262 BTUSB_WIDEBAND_SPEECH },
263 { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME |
264 BTUSB_WIDEBAND_SPEECH },
265 { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME |
266 BTUSB_WIDEBAND_SPEECH },
267 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME |
268 BTUSB_WIDEBAND_SPEECH },
269 { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME |
270 BTUSB_WIDEBAND_SPEECH },
271 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME |
272 BTUSB_WIDEBAND_SPEECH },
273 { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME |
274 BTUSB_WIDEBAND_SPEECH },
275 { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME |
276 BTUSB_WIDEBAND_SPEECH },
277 { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME |
278 BTUSB_WIDEBAND_SPEECH },
279 { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME |
280 BTUSB_WIDEBAND_SPEECH },
281 { USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME |
282 BTUSB_WIDEBAND_SPEECH },
283 { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME |
284 BTUSB_WIDEBAND_SPEECH },
285 { USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME |
286 BTUSB_WIDEBAND_SPEECH },
287 { USB_DEVICE(0x04ca, 0x3021), .driver_info = BTUSB_QCA_ROME |
288 BTUSB_WIDEBAND_SPEECH },
289 { USB_DEVICE(0x13d3, 0x3491), .driver_info = BTUSB_QCA_ROME |
290 BTUSB_WIDEBAND_SPEECH },
291 { USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME |
292 BTUSB_WIDEBAND_SPEECH },
293 { USB_DEVICE(0x13d3, 0x3501), .driver_info = BTUSB_QCA_ROME |
294 BTUSB_WIDEBAND_SPEECH },
296 /* QCA WCN6855 chipset */
297 { USB_DEVICE(0x0cf3, 0xe600), .driver_info = BTUSB_QCA_WCN6855 |
298 BTUSB_WIDEBAND_SPEECH },
300 /* Broadcom BCM2035 */
301 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
302 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
303 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
305 /* Broadcom BCM2045 */
306 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
307 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
309 /* IBM/Lenovo ThinkPad with Broadcom chip */
310 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
311 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
313 /* HP laptop with Broadcom chip */
314 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
316 /* Dell laptop with Broadcom chip */
317 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
319 /* Dell Wireless 370 and 410 devices */
320 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
321 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
323 /* Belkin F8T012 and F8T013 devices */
324 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
325 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
327 /* Asus WL-BTD202 device */
328 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
330 /* Kensington Bluetooth USB adapter */
331 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
333 /* RTX Telecom based adapters with buggy SCO support */
334 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
335 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
337 /* CONWISE Technology based adapters with buggy SCO support */
338 { USB_DEVICE(0x0e5e, 0x6622),
339 .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622},
341 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
342 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE },
344 /* Digianswer devices */
345 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
346 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
348 /* CSR BlueCore Bluetooth Sniffer */
349 { USB_DEVICE(0x0a12, 0x0002),
350 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
352 /* Frontline ComProbe Bluetooth Sniffer */
353 { USB_DEVICE(0x16d3, 0x0002),
354 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
356 /* Marvell Bluetooth devices */
357 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
358 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
359 { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL },
361 /* Intel Bluetooth devices */
362 { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_NEW |
363 BTUSB_WIDEBAND_SPEECH |
364 BTUSB_VALID_LE_STATES },
365 { USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_NEW |
366 BTUSB_WIDEBAND_SPEECH },
367 { USB_DEVICE(0x8087, 0x0029), .driver_info = BTUSB_INTEL_NEW |
368 BTUSB_WIDEBAND_SPEECH },
369 { USB_DEVICE(0x8087, 0x0032), .driver_info = BTUSB_INTEL_NEWGEN |
370 BTUSB_WIDEBAND_SPEECH},
371 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
372 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
373 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL },
374 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_NEW |
375 BTUSB_WIDEBAND_SPEECH },
376 { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL |
377 BTUSB_WIDEBAND_SPEECH },
378 { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_NEW |
379 BTUSB_WIDEBAND_SPEECH |
380 BTUSB_VALID_LE_STATES },
382 /* Other Intel Bluetooth devices */
383 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
384 .driver_info = BTUSB_IGNORE },
386 /* Realtek 8822CE Bluetooth devices */
387 { USB_DEVICE(0x0bda, 0xb00c), .driver_info = BTUSB_REALTEK |
388 BTUSB_WIDEBAND_SPEECH },
390 /* Realtek 8852AE Bluetooth devices */
391 { USB_DEVICE(0x0bda, 0xc852), .driver_info = BTUSB_REALTEK |
392 BTUSB_WIDEBAND_SPEECH },
394 /* Realtek Bluetooth devices */
395 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
396 .driver_info = BTUSB_REALTEK },
398 /* MediaTek Bluetooth devices */
399 { USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01),
400 .driver_info = BTUSB_MEDIATEK },
402 /* Additional MediaTek MT7615E Bluetooth devices */
403 { USB_DEVICE(0x13d3, 0x3560), .driver_info = BTUSB_MEDIATEK},
405 /* Additional Realtek 8723AE Bluetooth devices */
406 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
407 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
409 /* Additional Realtek 8723BE Bluetooth devices */
410 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
411 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
412 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
413 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
414 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
415 { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK },
417 /* Additional Realtek 8723BU Bluetooth devices */
418 { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK },
420 /* Additional Realtek 8723DE Bluetooth devices */
421 { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK },
422 { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK },
424 /* Additional Realtek 8821AE Bluetooth devices */
425 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
426 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
427 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
428 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
429 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
431 /* Additional Realtek 8822BE Bluetooth devices */
432 { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK },
433 { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK },
435 /* Additional Realtek 8822CE Bluetooth devices */
436 { USB_DEVICE(0x04ca, 0x4005), .driver_info = BTUSB_REALTEK |
437 BTUSB_WIDEBAND_SPEECH },
438 { USB_DEVICE(0x04c5, 0x161f), .driver_info = BTUSB_REALTEK |
439 BTUSB_WIDEBAND_SPEECH },
440 { USB_DEVICE(0x0b05, 0x18ef), .driver_info = BTUSB_REALTEK |
441 BTUSB_WIDEBAND_SPEECH },
442 { USB_DEVICE(0x13d3, 0x3548), .driver_info = BTUSB_REALTEK |
443 BTUSB_WIDEBAND_SPEECH },
444 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK |
445 BTUSB_WIDEBAND_SPEECH },
446 { USB_DEVICE(0x13d3, 0x3553), .driver_info = BTUSB_REALTEK |
447 BTUSB_WIDEBAND_SPEECH },
448 { USB_DEVICE(0x13d3, 0x3555), .driver_info = BTUSB_REALTEK |
449 BTUSB_WIDEBAND_SPEECH },
450 { USB_DEVICE(0x2ff8, 0x3051), .driver_info = BTUSB_REALTEK |
451 BTUSB_WIDEBAND_SPEECH },
452 { USB_DEVICE(0x1358, 0xc123), .driver_info = BTUSB_REALTEK |
453 BTUSB_WIDEBAND_SPEECH },
454 { USB_DEVICE(0x0bda, 0xc123), .driver_info = BTUSB_REALTEK |
455 BTUSB_WIDEBAND_SPEECH },
457 /* Silicon Wave based devices */
458 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE },
460 { } /* Terminating entry */
463 /* The Bluetooth USB module build into some devices needs to be reset on resume,
464 * this is a problem with the platform (likely shutting off all power) not with
465 * the module itself. So we use a DMI list to match known broken platforms.
467 static const struct dmi_system_id btusb_needs_reset_resume_table[] = {
469 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */
471 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
472 DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"),
476 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */
478 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
479 DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"),
483 /* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */
485 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
486 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"),
492 #define BTUSB_MAX_ISOC_FRAMES 10
494 #define BTUSB_INTR_RUNNING 0
495 #define BTUSB_BULK_RUNNING 1
496 #define BTUSB_ISOC_RUNNING 2
497 #define BTUSB_SUSPENDING 3
498 #define BTUSB_DID_ISO_RESUME 4
499 #define BTUSB_BOOTLOADER 5
500 #define BTUSB_DOWNLOADING 6
501 #define BTUSB_FIRMWARE_LOADED 7
502 #define BTUSB_FIRMWARE_FAILED 8
503 #define BTUSB_BOOTING 9
504 #define BTUSB_DIAG_RUNNING 10
505 #define BTUSB_OOB_WAKE_ENABLED 11
506 #define BTUSB_HW_RESET_ACTIVE 12
507 #define BTUSB_TX_WAIT_VND_EVT 13
508 #define BTUSB_WAKEUP_DISABLE 14
509 #define BTUSB_USE_ALT1_FOR_WBS 15
512 struct hci_dev *hdev;
513 struct usb_device *udev;
514 struct usb_interface *intf;
515 struct usb_interface *isoc;
516 struct usb_interface *diag;
521 struct work_struct work;
522 struct work_struct waker;
524 struct usb_anchor deferred;
525 struct usb_anchor tx_anchor;
529 struct usb_anchor intr_anchor;
530 struct usb_anchor bulk_anchor;
531 struct usb_anchor isoc_anchor;
532 struct usb_anchor diag_anchor;
533 struct usb_anchor ctrl_anchor;
536 struct sk_buff *evt_skb;
537 struct sk_buff *acl_skb;
538 struct sk_buff *sco_skb;
540 struct usb_endpoint_descriptor *intr_ep;
541 struct usb_endpoint_descriptor *bulk_tx_ep;
542 struct usb_endpoint_descriptor *bulk_rx_ep;
543 struct usb_endpoint_descriptor *isoc_tx_ep;
544 struct usb_endpoint_descriptor *isoc_rx_ep;
545 struct usb_endpoint_descriptor *diag_tx_ep;
546 struct usb_endpoint_descriptor *diag_rx_ep;
548 struct gpio_desc *reset_gpio;
553 unsigned int sco_num;
554 unsigned int air_mode;
555 bool usb_alt6_packet_flow;
559 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
560 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
562 int (*setup_on_usb)(struct hci_dev *hdev);
564 int oob_wake_irq; /* irq for out-of-band wake-on-bt */
565 unsigned cmd_timeout_cnt;
568 static void btusb_intel_cmd_timeout(struct hci_dev *hdev)
570 struct btusb_data *data = hci_get_drvdata(hdev);
571 struct gpio_desc *reset_gpio = data->reset_gpio;
573 if (++data->cmd_timeout_cnt < 5)
577 bt_dev_err(hdev, "No way to reset. Ignoring and continuing");
582 * Toggle the hard reset line if the platform provides one. The reset
583 * is going to yank the device off the USB and then replug. So doing
584 * once is enough. The cleanup is handled correctly on the way out
585 * (standard USB disconnect), and the new device is detected cleanly
586 * and bound to the driver again like it should be.
588 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
589 bt_dev_err(hdev, "last reset failed? Not resetting again");
593 bt_dev_err(hdev, "Initiating HW reset via gpio");
594 gpiod_set_value_cansleep(reset_gpio, 1);
596 gpiod_set_value_cansleep(reset_gpio, 0);
599 static void btusb_rtl_cmd_timeout(struct hci_dev *hdev)
601 struct btusb_data *data = hci_get_drvdata(hdev);
602 struct gpio_desc *reset_gpio = data->reset_gpio;
604 if (++data->cmd_timeout_cnt < 5)
608 bt_dev_err(hdev, "No gpio to reset Realtek device, ignoring");
612 /* Toggle the hard reset line. The Realtek device is going to
613 * yank itself off the USB and then replug. The cleanup is handled
614 * correctly on the way out (standard USB disconnect), and the new
615 * device is detected cleanly and bound to the driver again like
618 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
619 bt_dev_err(hdev, "last reset failed? Not resetting again");
623 bt_dev_err(hdev, "Reset Realtek device via gpio");
624 gpiod_set_value_cansleep(reset_gpio, 1);
626 gpiod_set_value_cansleep(reset_gpio, 0);
629 static void btusb_qca_cmd_timeout(struct hci_dev *hdev)
631 struct btusb_data *data = hci_get_drvdata(hdev);
634 if (++data->cmd_timeout_cnt < 5)
637 bt_dev_err(hdev, "Multiple cmd timeouts seen. Resetting usb device.");
638 /* This is not an unbalanced PM reference since the device will reset */
639 err = usb_autopm_get_interface(data->intf);
641 usb_queue_reset_device(data->intf);
643 bt_dev_err(hdev, "Failed usb_autopm_get_interface with %d", err);
646 static inline void btusb_free_frags(struct btusb_data *data)
650 spin_lock_irqsave(&data->rxlock, flags);
652 kfree_skb(data->evt_skb);
653 data->evt_skb = NULL;
655 kfree_skb(data->acl_skb);
656 data->acl_skb = NULL;
658 kfree_skb(data->sco_skb);
659 data->sco_skb = NULL;
661 spin_unlock_irqrestore(&data->rxlock, flags);
664 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
670 spin_lock_irqsave(&data->rxlock, flags);
677 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
683 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
684 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE;
687 len = min_t(uint, hci_skb_expect(skb), count);
688 skb_put_data(skb, buffer, len);
692 hci_skb_expect(skb) -= len;
694 if (skb->len == HCI_EVENT_HDR_SIZE) {
695 /* Complete event header */
696 hci_skb_expect(skb) = hci_event_hdr(skb)->plen;
698 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
707 if (!hci_skb_expect(skb)) {
709 data->recv_event(data->hdev, skb);
715 spin_unlock_irqrestore(&data->rxlock, flags);
720 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
726 spin_lock_irqsave(&data->rxlock, flags);
733 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
739 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT;
740 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE;
743 len = min_t(uint, hci_skb_expect(skb), count);
744 skb_put_data(skb, buffer, len);
748 hci_skb_expect(skb) -= len;
750 if (skb->len == HCI_ACL_HDR_SIZE) {
751 __le16 dlen = hci_acl_hdr(skb)->dlen;
753 /* Complete ACL header */
754 hci_skb_expect(skb) = __le16_to_cpu(dlen);
756 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
765 if (!hci_skb_expect(skb)) {
767 hci_recv_frame(data->hdev, skb);
773 spin_unlock_irqrestore(&data->rxlock, flags);
778 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
784 spin_lock_irqsave(&data->rxlock, flags);
791 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
797 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT;
798 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE;
801 len = min_t(uint, hci_skb_expect(skb), count);
802 skb_put_data(skb, buffer, len);
806 hci_skb_expect(skb) -= len;
808 if (skb->len == HCI_SCO_HDR_SIZE) {
809 /* Complete SCO header */
810 hci_skb_expect(skb) = hci_sco_hdr(skb)->dlen;
812 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
821 if (!hci_skb_expect(skb)) {
823 hci_recv_frame(data->hdev, skb);
829 spin_unlock_irqrestore(&data->rxlock, flags);
834 static void btusb_intr_complete(struct urb *urb)
836 struct hci_dev *hdev = urb->context;
837 struct btusb_data *data = hci_get_drvdata(hdev);
840 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
843 if (!test_bit(HCI_RUNNING, &hdev->flags))
846 if (urb->status == 0) {
847 hdev->stat.byte_rx += urb->actual_length;
849 if (btusb_recv_intr(data, urb->transfer_buffer,
850 urb->actual_length) < 0) {
851 bt_dev_err(hdev, "corrupted event packet");
854 } else if (urb->status == -ENOENT) {
855 /* Avoid suspend failed when usb_kill_urb */
859 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
862 usb_mark_last_busy(data->udev);
863 usb_anchor_urb(urb, &data->intr_anchor);
865 err = usb_submit_urb(urb, GFP_ATOMIC);
867 /* -EPERM: urb is being killed;
868 * -ENODEV: device got disconnected
870 if (err != -EPERM && err != -ENODEV)
871 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
873 usb_unanchor_urb(urb);
877 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
879 struct btusb_data *data = hci_get_drvdata(hdev);
885 BT_DBG("%s", hdev->name);
890 urb = usb_alloc_urb(0, mem_flags);
894 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
896 buf = kmalloc(size, mem_flags);
902 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
904 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
905 btusb_intr_complete, hdev, data->intr_ep->bInterval);
907 urb->transfer_flags |= URB_FREE_BUFFER;
909 usb_anchor_urb(urb, &data->intr_anchor);
911 err = usb_submit_urb(urb, mem_flags);
913 if (err != -EPERM && err != -ENODEV)
914 bt_dev_err(hdev, "urb %p submission failed (%d)",
916 usb_unanchor_urb(urb);
924 static void btusb_bulk_complete(struct urb *urb)
926 struct hci_dev *hdev = urb->context;
927 struct btusb_data *data = hci_get_drvdata(hdev);
930 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
933 if (!test_bit(HCI_RUNNING, &hdev->flags))
936 if (urb->status == 0) {
937 hdev->stat.byte_rx += urb->actual_length;
939 if (data->recv_bulk(data, urb->transfer_buffer,
940 urb->actual_length) < 0) {
941 bt_dev_err(hdev, "corrupted ACL packet");
944 } else if (urb->status == -ENOENT) {
945 /* Avoid suspend failed when usb_kill_urb */
949 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
952 usb_anchor_urb(urb, &data->bulk_anchor);
953 usb_mark_last_busy(data->udev);
955 err = usb_submit_urb(urb, GFP_ATOMIC);
957 /* -EPERM: urb is being killed;
958 * -ENODEV: device got disconnected
960 if (err != -EPERM && err != -ENODEV)
961 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
963 usb_unanchor_urb(urb);
967 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
969 struct btusb_data *data = hci_get_drvdata(hdev);
973 int err, size = HCI_MAX_FRAME_SIZE;
975 BT_DBG("%s", hdev->name);
977 if (!data->bulk_rx_ep)
980 urb = usb_alloc_urb(0, mem_flags);
984 buf = kmalloc(size, mem_flags);
990 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
992 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
993 btusb_bulk_complete, hdev);
995 urb->transfer_flags |= URB_FREE_BUFFER;
997 usb_mark_last_busy(data->udev);
998 usb_anchor_urb(urb, &data->bulk_anchor);
1000 err = usb_submit_urb(urb, mem_flags);
1002 if (err != -EPERM && err != -ENODEV)
1003 bt_dev_err(hdev, "urb %p submission failed (%d)",
1005 usb_unanchor_urb(urb);
1013 static void btusb_isoc_complete(struct urb *urb)
1015 struct hci_dev *hdev = urb->context;
1016 struct btusb_data *data = hci_get_drvdata(hdev);
1019 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1020 urb->actual_length);
1022 if (!test_bit(HCI_RUNNING, &hdev->flags))
1025 if (urb->status == 0) {
1026 for (i = 0; i < urb->number_of_packets; i++) {
1027 unsigned int offset = urb->iso_frame_desc[i].offset;
1028 unsigned int length = urb->iso_frame_desc[i].actual_length;
1030 if (urb->iso_frame_desc[i].status)
1033 hdev->stat.byte_rx += length;
1035 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
1037 bt_dev_err(hdev, "corrupted SCO packet");
1038 hdev->stat.err_rx++;
1041 } else if (urb->status == -ENOENT) {
1042 /* Avoid suspend failed when usb_kill_urb */
1046 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
1049 usb_anchor_urb(urb, &data->isoc_anchor);
1051 err = usb_submit_urb(urb, GFP_ATOMIC);
1053 /* -EPERM: urb is being killed;
1054 * -ENODEV: device got disconnected
1056 if (err != -EPERM && err != -ENODEV)
1057 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1059 usb_unanchor_urb(urb);
1063 static inline void __fill_isoc_descriptor_msbc(struct urb *urb, int len,
1064 int mtu, struct btusb_data *data)
1067 unsigned int interval;
1069 BT_DBG("len %d mtu %d", len, mtu);
1071 /* For mSBC ALT 6 setting the host will send the packet at continuous
1072 * flow. As per core spec 5, vol 4, part B, table 2.1. For ALT setting
1073 * 6 the HCI PACKET INTERVAL should be 7.5ms for every usb packets.
1074 * To maintain the rate we send 63bytes of usb packets alternatively for
1075 * 7ms and 8ms to maintain the rate as 7.5ms.
1077 if (data->usb_alt6_packet_flow) {
1079 data->usb_alt6_packet_flow = false;
1082 data->usb_alt6_packet_flow = true;
1085 for (i = 0; i < interval; i++) {
1086 urb->iso_frame_desc[i].offset = offset;
1087 urb->iso_frame_desc[i].length = offset;
1090 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1091 urb->iso_frame_desc[i].offset = offset;
1092 urb->iso_frame_desc[i].length = len;
1096 urb->number_of_packets = i;
1099 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
1103 BT_DBG("len %d mtu %d", len, mtu);
1105 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
1106 i++, offset += mtu, len -= mtu) {
1107 urb->iso_frame_desc[i].offset = offset;
1108 urb->iso_frame_desc[i].length = mtu;
1111 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1112 urb->iso_frame_desc[i].offset = offset;
1113 urb->iso_frame_desc[i].length = len;
1117 urb->number_of_packets = i;
1120 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
1122 struct btusb_data *data = hci_get_drvdata(hdev);
1128 BT_DBG("%s", hdev->name);
1130 if (!data->isoc_rx_ep)
1133 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
1137 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
1138 BTUSB_MAX_ISOC_FRAMES;
1140 buf = kmalloc(size, mem_flags);
1146 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
1148 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
1149 hdev, data->isoc_rx_ep->bInterval);
1151 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
1153 __fill_isoc_descriptor(urb, size,
1154 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
1156 usb_anchor_urb(urb, &data->isoc_anchor);
1158 err = usb_submit_urb(urb, mem_flags);
1160 if (err != -EPERM && err != -ENODEV)
1161 bt_dev_err(hdev, "urb %p submission failed (%d)",
1163 usb_unanchor_urb(urb);
1171 static void btusb_diag_complete(struct urb *urb)
1173 struct hci_dev *hdev = urb->context;
1174 struct btusb_data *data = hci_get_drvdata(hdev);
1177 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1178 urb->actual_length);
1180 if (urb->status == 0) {
1181 struct sk_buff *skb;
1183 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC);
1185 skb_put_data(skb, urb->transfer_buffer,
1186 urb->actual_length);
1187 hci_recv_diag(hdev, skb);
1189 } else if (urb->status == -ENOENT) {
1190 /* Avoid suspend failed when usb_kill_urb */
1194 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags))
1197 usb_anchor_urb(urb, &data->diag_anchor);
1198 usb_mark_last_busy(data->udev);
1200 err = usb_submit_urb(urb, GFP_ATOMIC);
1202 /* -EPERM: urb is being killed;
1203 * -ENODEV: device got disconnected
1205 if (err != -EPERM && err != -ENODEV)
1206 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1208 usb_unanchor_urb(urb);
1212 static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags)
1214 struct btusb_data *data = hci_get_drvdata(hdev);
1218 int err, size = HCI_MAX_FRAME_SIZE;
1220 BT_DBG("%s", hdev->name);
1222 if (!data->diag_rx_ep)
1225 urb = usb_alloc_urb(0, mem_flags);
1229 buf = kmalloc(size, mem_flags);
1235 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress);
1237 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1238 btusb_diag_complete, hdev);
1240 urb->transfer_flags |= URB_FREE_BUFFER;
1242 usb_mark_last_busy(data->udev);
1243 usb_anchor_urb(urb, &data->diag_anchor);
1245 err = usb_submit_urb(urb, mem_flags);
1247 if (err != -EPERM && err != -ENODEV)
1248 bt_dev_err(hdev, "urb %p submission failed (%d)",
1250 usb_unanchor_urb(urb);
1258 static void btusb_tx_complete(struct urb *urb)
1260 struct sk_buff *skb = urb->context;
1261 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1262 struct btusb_data *data = hci_get_drvdata(hdev);
1263 unsigned long flags;
1265 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1266 urb->actual_length);
1268 if (!test_bit(HCI_RUNNING, &hdev->flags))
1272 hdev->stat.byte_tx += urb->transfer_buffer_length;
1274 hdev->stat.err_tx++;
1277 spin_lock_irqsave(&data->txlock, flags);
1278 data->tx_in_flight--;
1279 spin_unlock_irqrestore(&data->txlock, flags);
1281 kfree(urb->setup_packet);
1286 static void btusb_isoc_tx_complete(struct urb *urb)
1288 struct sk_buff *skb = urb->context;
1289 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1291 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1292 urb->actual_length);
1294 if (!test_bit(HCI_RUNNING, &hdev->flags))
1298 hdev->stat.byte_tx += urb->transfer_buffer_length;
1300 hdev->stat.err_tx++;
1303 kfree(urb->setup_packet);
1308 static int btusb_open(struct hci_dev *hdev)
1310 struct btusb_data *data = hci_get_drvdata(hdev);
1313 BT_DBG("%s", hdev->name);
1315 err = usb_autopm_get_interface(data->intf);
1319 /* Patching USB firmware files prior to starting any URBs of HCI path
1320 * It is more safe to use USB bulk channel for downloading USB patch
1322 if (data->setup_on_usb) {
1323 err = data->setup_on_usb(hdev);
1328 data->intf->needs_remote_wakeup = 1;
1330 /* Disable device remote wakeup when host is suspended
1331 * For Realtek chips, global suspend without
1332 * SET_FEATURE (DEVICE_REMOTE_WAKEUP) can save more power in device.
1334 if (test_bit(BTUSB_WAKEUP_DISABLE, &data->flags))
1335 device_wakeup_disable(&data->udev->dev);
1337 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
1340 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
1344 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1346 usb_kill_anchored_urbs(&data->intr_anchor);
1350 set_bit(BTUSB_BULK_RUNNING, &data->flags);
1351 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1354 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL))
1355 set_bit(BTUSB_DIAG_RUNNING, &data->flags);
1359 usb_autopm_put_interface(data->intf);
1363 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1365 usb_autopm_put_interface(data->intf);
1369 static void btusb_stop_traffic(struct btusb_data *data)
1371 usb_kill_anchored_urbs(&data->intr_anchor);
1372 usb_kill_anchored_urbs(&data->bulk_anchor);
1373 usb_kill_anchored_urbs(&data->isoc_anchor);
1374 usb_kill_anchored_urbs(&data->diag_anchor);
1375 usb_kill_anchored_urbs(&data->ctrl_anchor);
1378 static int btusb_close(struct hci_dev *hdev)
1380 struct btusb_data *data = hci_get_drvdata(hdev);
1383 BT_DBG("%s", hdev->name);
1385 cancel_work_sync(&data->work);
1386 cancel_work_sync(&data->waker);
1388 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1389 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1390 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1391 clear_bit(BTUSB_DIAG_RUNNING, &data->flags);
1393 btusb_stop_traffic(data);
1394 btusb_free_frags(data);
1396 err = usb_autopm_get_interface(data->intf);
1400 data->intf->needs_remote_wakeup = 0;
1402 /* Enable remote wake up for auto-suspend */
1403 if (test_bit(BTUSB_WAKEUP_DISABLE, &data->flags))
1404 data->intf->needs_remote_wakeup = 1;
1406 usb_autopm_put_interface(data->intf);
1409 usb_scuttle_anchored_urbs(&data->deferred);
1413 static int btusb_flush(struct hci_dev *hdev)
1415 struct btusb_data *data = hci_get_drvdata(hdev);
1417 BT_DBG("%s", hdev->name);
1419 usb_kill_anchored_urbs(&data->tx_anchor);
1420 btusb_free_frags(data);
1425 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
1427 struct btusb_data *data = hci_get_drvdata(hdev);
1428 struct usb_ctrlrequest *dr;
1432 urb = usb_alloc_urb(0, GFP_KERNEL);
1434 return ERR_PTR(-ENOMEM);
1436 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
1439 return ERR_PTR(-ENOMEM);
1442 dr->bRequestType = data->cmdreq_type;
1443 dr->bRequest = data->cmdreq;
1446 dr->wLength = __cpu_to_le16(skb->len);
1448 pipe = usb_sndctrlpipe(data->udev, 0x00);
1450 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
1451 skb->data, skb->len, btusb_tx_complete, skb);
1453 skb->dev = (void *)hdev;
1458 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
1460 struct btusb_data *data = hci_get_drvdata(hdev);
1464 if (!data->bulk_tx_ep)
1465 return ERR_PTR(-ENODEV);
1467 urb = usb_alloc_urb(0, GFP_KERNEL);
1469 return ERR_PTR(-ENOMEM);
1471 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
1473 usb_fill_bulk_urb(urb, data->udev, pipe,
1474 skb->data, skb->len, btusb_tx_complete, skb);
1476 skb->dev = (void *)hdev;
1481 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
1483 struct btusb_data *data = hci_get_drvdata(hdev);
1487 if (!data->isoc_tx_ep)
1488 return ERR_PTR(-ENODEV);
1490 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
1492 return ERR_PTR(-ENOMEM);
1494 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
1496 usb_fill_int_urb(urb, data->udev, pipe,
1497 skb->data, skb->len, btusb_isoc_tx_complete,
1498 skb, data->isoc_tx_ep->bInterval);
1500 urb->transfer_flags = URB_ISO_ASAP;
1502 if (data->isoc_altsetting == 6)
1503 __fill_isoc_descriptor_msbc(urb, skb->len,
1504 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize),
1507 __fill_isoc_descriptor(urb, skb->len,
1508 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
1509 skb->dev = (void *)hdev;
1514 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
1516 struct btusb_data *data = hci_get_drvdata(hdev);
1519 usb_anchor_urb(urb, &data->tx_anchor);
1521 err = usb_submit_urb(urb, GFP_KERNEL);
1523 if (err != -EPERM && err != -ENODEV)
1524 bt_dev_err(hdev, "urb %p submission failed (%d)",
1526 kfree(urb->setup_packet);
1527 usb_unanchor_urb(urb);
1529 usb_mark_last_busy(data->udev);
1536 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
1538 struct btusb_data *data = hci_get_drvdata(hdev);
1539 unsigned long flags;
1542 spin_lock_irqsave(&data->txlock, flags);
1543 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
1545 data->tx_in_flight++;
1546 spin_unlock_irqrestore(&data->txlock, flags);
1549 return submit_tx_urb(hdev, urb);
1551 usb_anchor_urb(urb, &data->deferred);
1552 schedule_work(&data->waker);
1558 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
1562 BT_DBG("%s", hdev->name);
1564 switch (hci_skb_pkt_type(skb)) {
1565 case HCI_COMMAND_PKT:
1566 urb = alloc_ctrl_urb(hdev, skb);
1568 return PTR_ERR(urb);
1570 hdev->stat.cmd_tx++;
1571 return submit_or_queue_tx_urb(hdev, urb);
1573 case HCI_ACLDATA_PKT:
1574 urb = alloc_bulk_urb(hdev, skb);
1576 return PTR_ERR(urb);
1578 hdev->stat.acl_tx++;
1579 return submit_or_queue_tx_urb(hdev, urb);
1581 case HCI_SCODATA_PKT:
1582 if (hci_conn_num(hdev, SCO_LINK) < 1)
1585 urb = alloc_isoc_urb(hdev, skb);
1587 return PTR_ERR(urb);
1589 hdev->stat.sco_tx++;
1590 return submit_tx_urb(hdev, urb);
1596 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
1598 struct btusb_data *data = hci_get_drvdata(hdev);
1600 BT_DBG("%s evt %d", hdev->name, evt);
1602 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
1603 data->sco_num = hci_conn_num(hdev, SCO_LINK);
1604 data->air_mode = evt;
1605 schedule_work(&data->work);
1609 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
1611 struct btusb_data *data = hci_get_drvdata(hdev);
1612 struct usb_interface *intf = data->isoc;
1613 struct usb_endpoint_descriptor *ep_desc;
1619 err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting);
1621 bt_dev_err(hdev, "setting interface failed (%d)", -err);
1625 data->isoc_altsetting = altsetting;
1627 data->isoc_tx_ep = NULL;
1628 data->isoc_rx_ep = NULL;
1630 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1631 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1633 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
1634 data->isoc_tx_ep = ep_desc;
1638 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
1639 data->isoc_rx_ep = ep_desc;
1644 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
1645 bt_dev_err(hdev, "invalid SCO descriptors");
1652 static int btusb_switch_alt_setting(struct hci_dev *hdev, int new_alts)
1654 struct btusb_data *data = hci_get_drvdata(hdev);
1657 if (data->isoc_altsetting != new_alts) {
1658 unsigned long flags;
1660 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1661 usb_kill_anchored_urbs(&data->isoc_anchor);
1663 /* When isochronous alternate setting needs to be
1664 * changed, because SCO connection has been added
1665 * or removed, a packet fragment may be left in the
1666 * reassembling state. This could lead to wrongly
1667 * assembled fragments.
1669 * Clear outstanding fragment when selecting a new
1670 * alternate setting.
1672 spin_lock_irqsave(&data->rxlock, flags);
1673 kfree_skb(data->sco_skb);
1674 data->sco_skb = NULL;
1675 spin_unlock_irqrestore(&data->rxlock, flags);
1677 err = __set_isoc_interface(hdev, new_alts);
1682 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1683 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
1684 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1686 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
1692 static struct usb_host_interface *btusb_find_altsetting(struct btusb_data *data,
1695 struct usb_interface *intf = data->isoc;
1698 BT_DBG("Looking for Alt no :%d", alt);
1703 for (i = 0; i < intf->num_altsetting; i++) {
1704 if (intf->altsetting[i].desc.bAlternateSetting == alt)
1705 return &intf->altsetting[i];
1711 static void btusb_work(struct work_struct *work)
1713 struct btusb_data *data = container_of(work, struct btusb_data, work);
1714 struct hci_dev *hdev = data->hdev;
1718 if (data->sco_num > 0) {
1719 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
1720 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
1722 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1723 usb_kill_anchored_urbs(&data->isoc_anchor);
1727 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
1730 if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_CVSD) {
1731 if (hdev->voice_setting & 0x0020) {
1732 static const int alts[3] = { 2, 4, 5 };
1734 new_alts = alts[data->sco_num - 1];
1736 new_alts = data->sco_num;
1738 } else if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_TRANSP) {
1739 /* Check if Alt 6 is supported for Transparent audio */
1740 if (btusb_find_altsetting(data, 6)) {
1741 data->usb_alt6_packet_flow = true;
1743 } else if (test_bit(BTUSB_USE_ALT1_FOR_WBS, &data->flags)) {
1746 bt_dev_err(hdev, "Device does not support ALT setting 6");
1750 if (btusb_switch_alt_setting(hdev, new_alts) < 0)
1751 bt_dev_err(hdev, "set USB alt:(%d) failed!", new_alts);
1753 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1754 usb_kill_anchored_urbs(&data->isoc_anchor);
1756 __set_isoc_interface(hdev, 0);
1757 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
1758 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
1762 static void btusb_waker(struct work_struct *work)
1764 struct btusb_data *data = container_of(work, struct btusb_data, waker);
1767 err = usb_autopm_get_interface(data->intf);
1771 usb_autopm_put_interface(data->intf);
1774 static int btusb_setup_bcm92035(struct hci_dev *hdev)
1776 struct sk_buff *skb;
1779 BT_DBG("%s", hdev->name);
1781 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
1783 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb));
1790 static int btusb_setup_csr(struct hci_dev *hdev)
1792 struct btusb_data *data = hci_get_drvdata(hdev);
1793 u16 bcdDevice = le16_to_cpu(data->udev->descriptor.bcdDevice);
1794 struct hci_rp_read_local_version *rp;
1795 struct sk_buff *skb;
1796 bool is_fake = false;
1798 BT_DBG("%s", hdev->name);
1800 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1803 int err = PTR_ERR(skb);
1804 bt_dev_err(hdev, "CSR: Local version failed (%d)", err);
1808 if (skb->len != sizeof(struct hci_rp_read_local_version)) {
1809 bt_dev_err(hdev, "CSR: Local version length mismatch");
1814 rp = (struct hci_rp_read_local_version *)skb->data;
1816 /* Detect a wide host of Chinese controllers that aren't CSR.
1818 * Known fake bcdDevices: 0x0100, 0x0134, 0x1915, 0x2520, 0x7558, 0x8891
1820 * The main thing they have in common is that these are really popular low-cost
1821 * options that support newer Bluetooth versions but rely on heavy VID/PID
1822 * squatting of this poor old Bluetooth 1.1 device. Even sold as such.
1824 * We detect actual CSR devices by checking that the HCI manufacturer code
1825 * is Cambridge Silicon Radio (10) and ensuring that LMP sub-version and
1826 * HCI rev values always match. As they both store the firmware number.
1828 if (le16_to_cpu(rp->manufacturer) != 10 ||
1829 le16_to_cpu(rp->hci_rev) != le16_to_cpu(rp->lmp_subver))
1832 /* Known legit CSR firmware build numbers and their supported BT versions:
1833 * - 1.1 (0x1) -> 0x0073, 0x020d, 0x033c, 0x034e
1834 * - 1.2 (0x2) -> 0x04d9, 0x0529
1835 * - 2.0 (0x3) -> 0x07a6, 0x07ad, 0x0c5c
1836 * - 2.1 (0x4) -> 0x149c, 0x1735, 0x1899 (0x1899 is a BlueCore4-External)
1837 * - 4.0 (0x6) -> 0x1d86, 0x2031, 0x22bb
1839 * e.g. Real CSR dongles with LMP subversion 0x73 are old enough that
1840 * support BT 1.1 only; so it's a dead giveaway when some
1841 * third-party BT 4.0 dongle reuses it.
1843 else if (le16_to_cpu(rp->lmp_subver) <= 0x034e &&
1844 le16_to_cpu(rp->hci_ver) > BLUETOOTH_VER_1_1)
1847 else if (le16_to_cpu(rp->lmp_subver) <= 0x0529 &&
1848 le16_to_cpu(rp->hci_ver) > BLUETOOTH_VER_1_2)
1851 else if (le16_to_cpu(rp->lmp_subver) <= 0x0c5c &&
1852 le16_to_cpu(rp->hci_ver) > BLUETOOTH_VER_2_0)
1855 else if (le16_to_cpu(rp->lmp_subver) <= 0x1899 &&
1856 le16_to_cpu(rp->hci_ver) > BLUETOOTH_VER_2_1)
1859 else if (le16_to_cpu(rp->lmp_subver) <= 0x22bb &&
1860 le16_to_cpu(rp->hci_ver) > BLUETOOTH_VER_4_0)
1863 /* Other clones which beat all the above checks */
1864 else if (bcdDevice == 0x0134 &&
1865 le16_to_cpu(rp->lmp_subver) == 0x0c5c &&
1866 le16_to_cpu(rp->hci_ver) == BLUETOOTH_VER_2_0)
1870 bt_dev_warn(hdev, "CSR: Unbranded CSR clone detected; adding workarounds...");
1872 /* Generally these clones have big discrepancies between
1873 * advertised features and what's actually supported.
1874 * Probably will need to be expanded in the future;
1875 * without these the controller will lock up.
1877 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
1878 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks);
1880 /* Clear the reset quirk since this is not an actual
1881 * early Bluetooth 1.1 device from CSR.
1883 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1884 clear_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
1892 static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev,
1893 struct intel_version *ver)
1895 const struct firmware *fw;
1899 snprintf(fwname, sizeof(fwname),
1900 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq",
1901 ver->hw_platform, ver->hw_variant, ver->hw_revision,
1902 ver->fw_variant, ver->fw_revision, ver->fw_build_num,
1903 ver->fw_build_ww, ver->fw_build_yy);
1905 ret = request_firmware(&fw, fwname, &hdev->dev);
1907 if (ret == -EINVAL) {
1908 bt_dev_err(hdev, "Intel firmware file request failed (%d)",
1913 bt_dev_err(hdev, "failed to open Intel firmware file: %s (%d)",
1916 /* If the correct firmware patch file is not found, use the
1917 * default firmware patch file instead
1919 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq",
1920 ver->hw_platform, ver->hw_variant);
1921 if (request_firmware(&fw, fwname, &hdev->dev) < 0) {
1922 bt_dev_err(hdev, "failed to open default fw file: %s",
1928 bt_dev_info(hdev, "Intel Bluetooth firmware file: %s", fwname);
1933 static int btusb_setup_intel_patching(struct hci_dev *hdev,
1934 const struct firmware *fw,
1935 const u8 **fw_ptr, int *disable_patch)
1937 struct sk_buff *skb;
1938 struct hci_command_hdr *cmd;
1939 const u8 *cmd_param;
1940 struct hci_event_hdr *evt = NULL;
1941 const u8 *evt_param = NULL;
1942 int remain = fw->size - (*fw_ptr - fw->data);
1944 /* The first byte indicates the types of the patch command or event.
1945 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes
1946 * in the current firmware buffer doesn't start with 0x01 or
1947 * the size of remain buffer is smaller than HCI command header,
1948 * the firmware file is corrupted and it should stop the patching
1951 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) {
1952 bt_dev_err(hdev, "Intel fw corrupted: invalid cmd read");
1958 cmd = (struct hci_command_hdr *)(*fw_ptr);
1959 *fw_ptr += sizeof(*cmd);
1960 remain -= sizeof(*cmd);
1962 /* Ensure that the remain firmware data is long enough than the length
1963 * of command parameter. If not, the firmware file is corrupted.
1965 if (remain < cmd->plen) {
1966 bt_dev_err(hdev, "Intel fw corrupted: invalid cmd len");
1970 /* If there is a command that loads a patch in the firmware
1971 * file, then enable the patch upon success, otherwise just
1972 * disable the manufacturer mode, for example patch activation
1973 * is not required when the default firmware patch file is used
1974 * because there are no patch data to load.
1976 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e)
1979 cmd_param = *fw_ptr;
1980 *fw_ptr += cmd->plen;
1981 remain -= cmd->plen;
1983 /* This reads the expected events when the above command is sent to the
1984 * device. Some vendor commands expects more than one events, for
1985 * example command status event followed by vendor specific event.
1986 * For this case, it only keeps the last expected event. so the command
1987 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of
1988 * last expected event.
1990 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) {
1994 evt = (struct hci_event_hdr *)(*fw_ptr);
1995 *fw_ptr += sizeof(*evt);
1996 remain -= sizeof(*evt);
1998 if (remain < evt->plen) {
1999 bt_dev_err(hdev, "Intel fw corrupted: invalid evt len");
2003 evt_param = *fw_ptr;
2004 *fw_ptr += evt->plen;
2005 remain -= evt->plen;
2008 /* Every HCI commands in the firmware file has its correspond event.
2009 * If event is not found or remain is smaller than zero, the firmware
2010 * file is corrupted.
2012 if (!evt || !evt_param || remain < 0) {
2013 bt_dev_err(hdev, "Intel fw corrupted: invalid evt read");
2017 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen,
2018 cmd_param, evt->evt, HCI_INIT_TIMEOUT);
2020 bt_dev_err(hdev, "sending Intel patch command (0x%4.4x) failed (%ld)",
2021 cmd->opcode, PTR_ERR(skb));
2022 return PTR_ERR(skb);
2025 /* It ensures that the returned event matches the event data read from
2026 * the firmware file. At fist, it checks the length and then
2027 * the contents of the event.
2029 if (skb->len != evt->plen) {
2030 bt_dev_err(hdev, "mismatch event length (opcode 0x%4.4x)",
2031 le16_to_cpu(cmd->opcode));
2036 if (memcmp(skb->data, evt_param, evt->plen)) {
2037 bt_dev_err(hdev, "mismatch event parameter (opcode 0x%4.4x)",
2038 le16_to_cpu(cmd->opcode));
2047 static int btusb_setup_intel(struct hci_dev *hdev)
2049 struct sk_buff *skb;
2050 const struct firmware *fw;
2052 int disable_patch, err;
2053 struct intel_version ver;
2055 BT_DBG("%s", hdev->name);
2057 /* The controller has a bug with the first HCI command sent to it
2058 * returning number of completed commands as zero. This would stall the
2059 * command processing in the Bluetooth core.
2061 * As a workaround, send HCI Reset command first which will reset the
2062 * number of completed commands and allow normal command processing
2065 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
2067 bt_dev_err(hdev, "sending initial HCI reset command failed (%ld)",
2069 return PTR_ERR(skb);
2073 /* Read Intel specific controller version first to allow selection of
2074 * which firmware file to load.
2076 * The returned information are hardware variant and revision plus
2077 * firmware variant, revision and build number.
2079 err = btintel_read_version(hdev, &ver);
2083 bt_dev_info(hdev, "read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
2084 ver.hw_platform, ver.hw_variant, ver.hw_revision,
2085 ver.fw_variant, ver.fw_revision, ver.fw_build_num,
2086 ver.fw_build_ww, ver.fw_build_yy, ver.fw_patch_num);
2088 /* fw_patch_num indicates the version of patch the device currently
2089 * have. If there is no patch data in the device, it is always 0x00.
2090 * So, if it is other than 0x00, no need to patch the device again.
2092 if (ver.fw_patch_num) {
2093 bt_dev_info(hdev, "Intel device is already patched. "
2094 "patch num: %02x", ver.fw_patch_num);
2098 /* Opens the firmware patch file based on the firmware version read
2099 * from the controller. If it fails to open the matching firmware
2100 * patch file, it tries to open the default firmware patch file.
2101 * If no patch file is found, allow the device to operate without
2104 fw = btusb_setup_intel_get_fw(hdev, &ver);
2109 /* Enable the manufacturer mode of the controller.
2110 * Only while this mode is enabled, the driver can download the
2111 * firmware patch data and configuration parameters.
2113 err = btintel_enter_mfg(hdev);
2115 release_firmware(fw);
2121 /* The firmware data file consists of list of Intel specific HCI
2122 * commands and its expected events. The first byte indicates the
2123 * type of the message, either HCI command or HCI event.
2125 * It reads the command and its expected event from the firmware file,
2126 * and send to the controller. Once __hci_cmd_sync_ev() returns,
2127 * the returned event is compared with the event read from the firmware
2128 * file and it will continue until all the messages are downloaded to
2131 * Once the firmware patching is completed successfully,
2132 * the manufacturer mode is disabled with reset and activating the
2135 * If the firmware patching fails, the manufacturer mode is
2136 * disabled with reset and deactivating the patch.
2138 * If the default patch file is used, no reset is done when disabling
2141 while (fw->size > fw_ptr - fw->data) {
2144 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr,
2147 goto exit_mfg_deactivate;
2150 release_firmware(fw);
2153 goto exit_mfg_disable;
2155 /* Patching completed successfully and disable the manufacturer mode
2156 * with reset and activate the downloaded firmware patches.
2158 err = btintel_exit_mfg(hdev, true, true);
2162 /* Need build number for downloaded fw patches in
2163 * every power-on boot
2165 err = btintel_read_version(hdev, &ver);
2168 bt_dev_info(hdev, "Intel BT fw patch 0x%02x completed & activated",
2174 /* Disable the manufacturer mode without reset */
2175 err = btintel_exit_mfg(hdev, false, false);
2179 bt_dev_info(hdev, "Intel firmware patch completed");
2183 exit_mfg_deactivate:
2184 release_firmware(fw);
2186 /* Patching failed. Disable the manufacturer mode with reset and
2187 * deactivate the downloaded firmware patches.
2189 err = btintel_exit_mfg(hdev, true, false);
2193 bt_dev_info(hdev, "Intel firmware patch completed and deactivated");
2196 /* Set the event mask for Intel specific vendor events. This enables
2197 * a few extra events that are useful during general operation.
2199 btintel_set_event_mask_mfg(hdev, false);
2201 btintel_check_bdaddr(hdev);
2205 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
2207 struct sk_buff *skb;
2208 struct hci_event_hdr *hdr;
2209 struct hci_ev_cmd_complete *evt;
2211 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL);
2215 hdr = skb_put(skb, sizeof(*hdr));
2216 hdr->evt = HCI_EV_CMD_COMPLETE;
2217 hdr->plen = sizeof(*evt) + 1;
2219 evt = skb_put(skb, sizeof(*evt));
2221 evt->opcode = cpu_to_le16(opcode);
2223 skb_put_u8(skb, 0x00);
2225 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
2227 return hci_recv_frame(hdev, skb);
2230 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
2233 /* When the device is in bootloader mode, then it can send
2234 * events via the bulk endpoint. These events are treated the
2235 * same way as the ones received from the interrupt endpoint.
2237 if (test_bit(BTUSB_BOOTLOADER, &data->flags))
2238 return btusb_recv_intr(data, buffer, count);
2240 return btusb_recv_bulk(data, buffer, count);
2243 static void btusb_intel_bootup(struct btusb_data *data, const void *ptr,
2246 const struct intel_bootup *evt = ptr;
2248 if (len != sizeof(*evt))
2251 if (test_and_clear_bit(BTUSB_BOOTING, &data->flags))
2252 wake_up_bit(&data->flags, BTUSB_BOOTING);
2255 static void btusb_intel_secure_send_result(struct btusb_data *data,
2256 const void *ptr, unsigned int len)
2258 const struct intel_secure_send_result *evt = ptr;
2260 if (len != sizeof(*evt))
2264 set_bit(BTUSB_FIRMWARE_FAILED, &data->flags);
2266 if (test_and_clear_bit(BTUSB_DOWNLOADING, &data->flags) &&
2267 test_bit(BTUSB_FIRMWARE_LOADED, &data->flags))
2268 wake_up_bit(&data->flags, BTUSB_DOWNLOADING);
2271 static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb)
2273 struct btusb_data *data = hci_get_drvdata(hdev);
2275 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
2276 struct hci_event_hdr *hdr = (void *)skb->data;
2278 if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff &&
2280 const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1;
2281 unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1;
2283 switch (skb->data[2]) {
2285 /* When switching to the operational firmware
2286 * the device sends a vendor specific event
2287 * indicating that the bootup completed.
2289 btusb_intel_bootup(data, ptr, len);
2292 /* When the firmware loading completes the
2293 * device sends out a vendor specific event
2294 * indicating the result of the firmware
2297 btusb_intel_secure_send_result(data, ptr, len);
2303 return hci_recv_frame(hdev, skb);
2306 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
2308 struct btusb_data *data = hci_get_drvdata(hdev);
2311 BT_DBG("%s", hdev->name);
2313 switch (hci_skb_pkt_type(skb)) {
2314 case HCI_COMMAND_PKT:
2315 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
2316 struct hci_command_hdr *cmd = (void *)skb->data;
2317 __u16 opcode = le16_to_cpu(cmd->opcode);
2319 /* When in bootloader mode and the command 0xfc09
2320 * is received, it needs to be send down the
2321 * bulk endpoint. So allocate a bulk URB instead.
2323 if (opcode == 0xfc09)
2324 urb = alloc_bulk_urb(hdev, skb);
2326 urb = alloc_ctrl_urb(hdev, skb);
2328 /* When the 0xfc01 command is issued to boot into
2329 * the operational firmware, it will actually not
2330 * send a command complete event. To keep the flow
2331 * control working inject that event here.
2333 if (opcode == 0xfc01)
2334 inject_cmd_complete(hdev, opcode);
2336 urb = alloc_ctrl_urb(hdev, skb);
2339 return PTR_ERR(urb);
2341 hdev->stat.cmd_tx++;
2342 return submit_or_queue_tx_urb(hdev, urb);
2344 case HCI_ACLDATA_PKT:
2345 urb = alloc_bulk_urb(hdev, skb);
2347 return PTR_ERR(urb);
2349 hdev->stat.acl_tx++;
2350 return submit_or_queue_tx_urb(hdev, urb);
2352 case HCI_SCODATA_PKT:
2353 if (hci_conn_num(hdev, SCO_LINK) < 1)
2356 urb = alloc_isoc_urb(hdev, skb);
2358 return PTR_ERR(urb);
2360 hdev->stat.sco_tx++;
2361 return submit_tx_urb(hdev, urb);
2367 static bool btusb_setup_intel_new_get_fw_name(struct intel_version *ver,
2368 struct intel_boot_params *params,
2369 char *fw_name, size_t len,
2372 switch (ver->hw_variant) {
2373 case 0x0b: /* SfP */
2374 case 0x0c: /* WsP */
2375 snprintf(fw_name, len, "intel/ibt-%u-%u.%s",
2376 le16_to_cpu(ver->hw_variant),
2377 le16_to_cpu(params->dev_revid),
2380 case 0x11: /* JfP */
2381 case 0x12: /* ThP */
2382 case 0x13: /* HrP */
2383 case 0x14: /* CcP */
2384 snprintf(fw_name, len, "intel/ibt-%u-%u-%u.%s",
2385 le16_to_cpu(ver->hw_variant),
2386 le16_to_cpu(ver->hw_revision),
2387 le16_to_cpu(ver->fw_revision),
2396 static void btusb_setup_intel_newgen_get_fw_name(const struct intel_version_tlv *ver_tlv,
2397 char *fw_name, size_t len,
2400 /* The firmware file name for new generation controllers will be
2401 * ibt-<cnvi_top type+cnvi_top step>-<cnvr_top type+cnvr_top step>
2403 snprintf(fw_name, len, "intel/ibt-%04x-%04x.%s",
2404 INTEL_CNVX_TOP_PACK_SWAB(INTEL_CNVX_TOP_TYPE(ver_tlv->cnvi_top),
2405 INTEL_CNVX_TOP_STEP(ver_tlv->cnvi_top)),
2406 INTEL_CNVX_TOP_PACK_SWAB(INTEL_CNVX_TOP_TYPE(ver_tlv->cnvr_top),
2407 INTEL_CNVX_TOP_STEP(ver_tlv->cnvr_top)),
2411 static int btusb_intel_download_firmware_newgen(struct hci_dev *hdev,
2412 struct intel_version_tlv *ver,
2415 const struct firmware *fw;
2418 struct btusb_data *data = hci_get_drvdata(hdev);
2420 if (!ver || !boot_param)
2423 /* The hardware platform number has a fixed value of 0x37 and
2424 * for now only accept this single value.
2426 if (INTEL_HW_PLATFORM(ver->cnvi_bt) != 0x37) {
2427 bt_dev_err(hdev, "Unsupported Intel hardware platform (0x%2x)",
2428 INTEL_HW_PLATFORM(ver->cnvi_bt));
2432 /* The firmware variant determines if the device is in bootloader
2433 * mode or is running operational firmware. The value 0x03 identifies
2434 * the bootloader and the value 0x23 identifies the operational
2437 * When the operational firmware is already present, then only
2438 * the check for valid Bluetooth device address is needed. This
2439 * determines if the device will be added as configured or
2440 * unconfigured controller.
2442 * It is not possible to use the Secure Boot Parameters in this
2443 * case since that command is only available in bootloader mode.
2445 if (ver->img_type == 0x03) {
2446 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2447 btintel_check_bdaddr(hdev);
2451 /* Check for supported iBT hardware variants of this firmware
2454 * This check has been put in place to ensure correct forward
2455 * compatibility options when newer hardware variants come along.
2457 switch (INTEL_HW_VARIANT(ver->cnvi_bt)) {
2458 case 0x17: /* TyP */
2459 case 0x18: /* Slr */
2460 case 0x19: /* Slr-F */
2463 bt_dev_err(hdev, "Unsupported Intel hardware variant (0x%x)",
2464 INTEL_HW_VARIANT(ver->cnvi_bt));
2468 /* If the device is not in bootloader mode, then the only possible
2469 * choice is to return an error and abort the device initialization.
2471 if (ver->img_type != 0x01) {
2472 bt_dev_err(hdev, "Unsupported Intel firmware variant (0x%x)",
2477 /* It is required that every single firmware fragment is acknowledged
2478 * with a command complete event. If the boot parameters indicate
2479 * that this bootloader does not send them, then abort the setup.
2481 if (ver->limited_cce != 0x00) {
2482 bt_dev_err(hdev, "Unsupported Intel firmware loading method (0x%x)",
2487 /* Secure boot engine type should be either 1 (ECDSA) or 0 (RSA) */
2488 if (ver->sbe_type > 0x01) {
2489 bt_dev_err(hdev, "Unsupported Intel secure boot engine type (0x%x)",
2494 /* If the OTP has no valid Bluetooth device address, then there will
2495 * also be no valid address for the operational firmware.
2497 if (!bacmp(&ver->otp_bd_addr, BDADDR_ANY)) {
2498 bt_dev_info(hdev, "No device address configured");
2499 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
2502 btusb_setup_intel_newgen_get_fw_name(ver, fwname, sizeof(fwname), "sfi");
2503 err = request_firmware(&fw, fwname, &hdev->dev);
2505 bt_dev_err(hdev, "Failed to load Intel firmware file (%d)", err);
2509 bt_dev_info(hdev, "Found device firmware: %s", fwname);
2511 if (fw->size < 644) {
2512 bt_dev_err(hdev, "Invalid size of firmware file (%zu)",
2518 set_bit(BTUSB_DOWNLOADING, &data->flags);
2520 /* Start firmware downloading and get boot parameter */
2521 err = btintel_download_firmware_newgen(hdev, fw, boot_param,
2522 INTEL_HW_VARIANT(ver->cnvi_bt),
2525 /* When FW download fails, send Intel Reset to retry
2528 btintel_reset_to_bootloader(hdev);
2531 set_bit(BTUSB_FIRMWARE_LOADED, &data->flags);
2533 bt_dev_info(hdev, "Waiting for firmware download to complete");
2535 /* Before switching the device into operational mode and with that
2536 * booting the loaded firmware, wait for the bootloader notification
2537 * that all fragments have been successfully received.
2539 * When the event processing receives the notification, then the
2540 * BTUSB_DOWNLOADING flag will be cleared.
2542 * The firmware loading should not take longer than 5 seconds
2543 * and thus just timeout if that happens and fail the setup
2546 err = wait_on_bit_timeout(&data->flags, BTUSB_DOWNLOADING,
2548 msecs_to_jiffies(5000));
2549 if (err == -EINTR) {
2550 bt_dev_err(hdev, "Firmware loading interrupted");
2555 bt_dev_err(hdev, "Firmware loading timeout");
2557 btintel_reset_to_bootloader(hdev);
2561 if (test_bit(BTUSB_FIRMWARE_FAILED, &data->flags)) {
2562 bt_dev_err(hdev, "Firmware loading failed");
2568 release_firmware(fw);
2572 static int btusb_intel_download_firmware(struct hci_dev *hdev,
2573 struct intel_version *ver,
2574 struct intel_boot_params *params,
2577 const struct firmware *fw;
2580 struct btusb_data *data = hci_get_drvdata(hdev);
2582 if (!ver || !params)
2585 /* The hardware platform number has a fixed value of 0x37 and
2586 * for now only accept this single value.
2588 if (ver->hw_platform != 0x37) {
2589 bt_dev_err(hdev, "Unsupported Intel hardware platform (%u)",
2594 /* Check for supported iBT hardware variants of this firmware
2597 * This check has been put in place to ensure correct forward
2598 * compatibility options when newer hardware variants come along.
2600 switch (ver->hw_variant) {
2601 case 0x0b: /* SfP */
2602 case 0x0c: /* WsP */
2603 case 0x11: /* JfP */
2604 case 0x12: /* ThP */
2605 case 0x13: /* HrP */
2606 case 0x14: /* CcP */
2609 bt_dev_err(hdev, "Unsupported Intel hardware variant (%u)",
2614 btintel_version_info(hdev, ver);
2616 /* The firmware variant determines if the device is in bootloader
2617 * mode or is running operational firmware. The value 0x06 identifies
2618 * the bootloader and the value 0x23 identifies the operational
2621 * When the operational firmware is already present, then only
2622 * the check for valid Bluetooth device address is needed. This
2623 * determines if the device will be added as configured or
2624 * unconfigured controller.
2626 * It is not possible to use the Secure Boot Parameters in this
2627 * case since that command is only available in bootloader mode.
2629 if (ver->fw_variant == 0x23) {
2630 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2631 btintel_check_bdaddr(hdev);
2635 /* If the device is not in bootloader mode, then the only possible
2636 * choice is to return an error and abort the device initialization.
2638 if (ver->fw_variant != 0x06) {
2639 bt_dev_err(hdev, "Unsupported Intel firmware variant (%u)",
2644 /* Read the secure boot parameters to identify the operating
2645 * details of the bootloader.
2647 err = btintel_read_boot_params(hdev, params);
2651 /* It is required that every single firmware fragment is acknowledged
2652 * with a command complete event. If the boot parameters indicate
2653 * that this bootloader does not send them, then abort the setup.
2655 if (params->limited_cce != 0x00) {
2656 bt_dev_err(hdev, "Unsupported Intel firmware loading method (%u)",
2657 params->limited_cce);
2661 /* If the OTP has no valid Bluetooth device address, then there will
2662 * also be no valid address for the operational firmware.
2664 if (!bacmp(¶ms->otp_bdaddr, BDADDR_ANY)) {
2665 bt_dev_info(hdev, "No device address configured");
2666 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
2669 /* With this Intel bootloader only the hardware variant and device
2670 * revision information are used to select the right firmware for SfP
2673 * The firmware filename is ibt-<hw_variant>-<dev_revid>.sfi.
2675 * Currently the supported hardware variants are:
2676 * 11 (0x0b) for iBT3.0 (LnP/SfP)
2677 * 12 (0x0c) for iBT3.5 (WsP)
2679 * For ThP/JfP and for future SKU's, the FW name varies based on HW
2680 * variant, HW revision and FW revision, as these are dependent on CNVi
2681 * and RF Combination.
2683 * 17 (0x11) for iBT3.5 (JfP)
2684 * 18 (0x12) for iBT3.5 (ThP)
2686 * The firmware file name for these will be
2687 * ibt-<hw_variant>-<hw_revision>-<fw_revision>.sfi.
2690 err = btusb_setup_intel_new_get_fw_name(ver, params, fwname,
2691 sizeof(fwname), "sfi");
2693 bt_dev_err(hdev, "Unsupported Intel firmware naming");
2697 err = request_firmware(&fw, fwname, &hdev->dev);
2699 bt_dev_err(hdev, "Failed to load Intel firmware file (%d)", err);
2703 bt_dev_info(hdev, "Found device firmware: %s", fwname);
2705 if (fw->size < 644) {
2706 bt_dev_err(hdev, "Invalid size of firmware file (%zu)",
2712 set_bit(BTUSB_DOWNLOADING, &data->flags);
2714 /* Start firmware downloading and get boot parameter */
2715 err = btintel_download_firmware(hdev, fw, boot_param);
2717 /* When FW download fails, send Intel Reset to retry
2720 btintel_reset_to_bootloader(hdev);
2723 set_bit(BTUSB_FIRMWARE_LOADED, &data->flags);
2725 bt_dev_info(hdev, "Waiting for firmware download to complete");
2727 /* Before switching the device into operational mode and with that
2728 * booting the loaded firmware, wait for the bootloader notification
2729 * that all fragments have been successfully received.
2731 * When the event processing receives the notification, then the
2732 * BTUSB_DOWNLOADING flag will be cleared.
2734 * The firmware loading should not take longer than 5 seconds
2735 * and thus just timeout if that happens and fail the setup
2738 err = wait_on_bit_timeout(&data->flags, BTUSB_DOWNLOADING,
2740 msecs_to_jiffies(5000));
2741 if (err == -EINTR) {
2742 bt_dev_err(hdev, "Firmware loading interrupted");
2747 bt_dev_err(hdev, "Firmware loading timeout");
2749 btintel_reset_to_bootloader(hdev);
2753 if (test_bit(BTUSB_FIRMWARE_FAILED, &data->flags)) {
2754 bt_dev_err(hdev, "Firmware loading failed");
2760 release_firmware(fw);
2764 static int btusb_setup_intel_new(struct hci_dev *hdev)
2766 struct btusb_data *data = hci_get_drvdata(hdev);
2767 struct intel_version ver;
2768 struct intel_boot_params params;
2771 ktime_t calltime, delta, rettime;
2772 unsigned long long duration;
2774 struct intel_debug_features features;
2776 BT_DBG("%s", hdev->name);
2778 /* Set the default boot parameter to 0x0 and it is updated to
2779 * SKU specific boot parameter after reading Intel_Write_Boot_Params
2780 * command while downloading the firmware.
2782 boot_param = 0x00000000;
2784 calltime = ktime_get();
2786 /* Read the Intel version information to determine if the device
2787 * is in bootloader mode or if it already has operational firmware
2790 err = btintel_read_version(hdev, &ver);
2792 bt_dev_err(hdev, "Intel Read version failed (%d)", err);
2793 btintel_reset_to_bootloader(hdev);
2797 err = btusb_intel_download_firmware(hdev, &ver, ¶ms, &boot_param);
2801 /* controller is already having an operational firmware */
2802 if (ver.fw_variant == 0x23)
2805 rettime = ktime_get();
2806 delta = ktime_sub(rettime, calltime);
2807 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2809 bt_dev_info(hdev, "Firmware loaded in %llu usecs", duration);
2811 calltime = ktime_get();
2813 set_bit(BTUSB_BOOTING, &data->flags);
2815 err = btintel_send_intel_reset(hdev, boot_param);
2817 bt_dev_err(hdev, "Intel Soft Reset failed (%d)", err);
2818 btintel_reset_to_bootloader(hdev);
2822 /* The bootloader will not indicate when the device is ready. This
2823 * is done by the operational firmware sending bootup notification.
2825 * Booting into operational firmware should not take longer than
2826 * 1 second. However if that happens, then just fail the setup
2827 * since something went wrong.
2829 bt_dev_info(hdev, "Waiting for device to boot");
2831 err = wait_on_bit_timeout(&data->flags, BTUSB_BOOTING,
2833 msecs_to_jiffies(1000));
2835 if (err == -EINTR) {
2836 bt_dev_err(hdev, "Device boot interrupted");
2841 bt_dev_err(hdev, "Device boot timeout");
2842 btintel_reset_to_bootloader(hdev);
2846 rettime = ktime_get();
2847 delta = ktime_sub(rettime, calltime);
2848 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2850 bt_dev_info(hdev, "Device booted in %llu usecs", duration);
2852 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2854 err = btusb_setup_intel_new_get_fw_name(&ver, ¶ms, ddcname,
2855 sizeof(ddcname), "ddc");
2858 bt_dev_err(hdev, "Unsupported Intel firmware naming");
2860 /* Once the device is running in operational mode, it needs to
2861 * apply the device configuration (DDC) parameters.
2863 * The device can work without DDC parameters, so even if it
2864 * fails to load the file, no need to fail the setup.
2866 btintel_load_ddc_config(hdev, ddcname);
2869 /* Read the Intel supported features and if new exception formats
2870 * supported, need to load the additional DDC config to enable.
2872 btintel_read_debug_features(hdev, &features);
2874 /* Set DDC mask for available debug features */
2875 btintel_set_debug_features(hdev, &features);
2877 /* Read the Intel version information after loading the FW */
2878 err = btintel_read_version(hdev, &ver);
2882 btintel_version_info(hdev, &ver);
2885 /* All Intel controllers that support the Microsoft vendor
2886 * extension are using 0xFC1E for VsMsftOpCode.
2888 switch (ver.hw_variant) {
2889 case 0x12: /* ThP */
2890 hci_set_msft_opcode(hdev, 0xFC1E);
2894 /* Set the event mask for Intel specific vendor events. This enables
2895 * a few extra events that are useful during general operation. It
2896 * does not enable any debugging related events.
2898 * The device will function correctly without these events enabled
2899 * and thus no need to fail the setup.
2901 btintel_set_event_mask(hdev, false);
2906 static int btusb_setup_intel_newgen(struct hci_dev *hdev)
2908 struct btusb_data *data = hci_get_drvdata(hdev);
2911 ktime_t calltime, delta, rettime;
2912 unsigned long long duration;
2914 struct intel_debug_features features;
2915 struct intel_version_tlv version;
2917 bt_dev_dbg(hdev, "");
2919 /* Set the default boot parameter to 0x0 and it is updated to
2920 * SKU specific boot parameter after reading Intel_Write_Boot_Params
2921 * command while downloading the firmware.
2923 boot_param = 0x00000000;
2925 calltime = ktime_get();
2927 /* Read the Intel version information to determine if the device
2928 * is in bootloader mode or if it already has operational firmware
2931 err = btintel_read_version_tlv(hdev, &version);
2933 bt_dev_err(hdev, "Intel Read version failed (%d)", err);
2934 btintel_reset_to_bootloader(hdev);
2938 btintel_version_info_tlv(hdev, &version);
2940 err = btusb_intel_download_firmware_newgen(hdev, &version, &boot_param);
2944 /* check if controller is already having an operational firmware */
2945 if (version.img_type == 0x03)
2948 rettime = ktime_get();
2949 delta = ktime_sub(rettime, calltime);
2950 duration = (unsigned long long)ktime_to_ns(delta) >> 10;
2952 bt_dev_info(hdev, "Firmware loaded in %llu usecs", duration);
2954 calltime = ktime_get();
2956 set_bit(BTUSB_BOOTING, &data->flags);
2958 err = btintel_send_intel_reset(hdev, boot_param);
2960 bt_dev_err(hdev, "Intel Soft Reset failed (%d)", err);
2961 btintel_reset_to_bootloader(hdev);
2965 /* The bootloader will not indicate when the device is ready. This
2966 * is done by the operational firmware sending bootup notification.
2968 * Booting into operational firmware should not take longer than
2969 * 1 second. However if that happens, then just fail the setup
2970 * since something went wrong.
2972 bt_dev_info(hdev, "Waiting for device to boot");
2974 err = wait_on_bit_timeout(&data->flags, BTUSB_BOOTING,
2976 msecs_to_jiffies(1000));
2978 if (err == -EINTR) {
2979 bt_dev_err(hdev, "Device boot interrupted");
2984 bt_dev_err(hdev, "Device boot timeout");
2985 btintel_reset_to_bootloader(hdev);
2989 rettime = ktime_get();
2990 delta = ktime_sub(rettime, calltime);
2991 duration = (unsigned long long)ktime_to_ns(delta) >> 10;
2993 bt_dev_info(hdev, "Device booted in %llu usecs", duration);
2995 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2997 btusb_setup_intel_newgen_get_fw_name(&version, ddcname, sizeof(ddcname),
2999 /* Once the device is running in operational mode, it needs to
3000 * apply the device configuration (DDC) parameters.
3002 * The device can work without DDC parameters, so even if it
3003 * fails to load the file, no need to fail the setup.
3005 btintel_load_ddc_config(hdev, ddcname);
3007 /* Read the Intel supported features and if new exception formats
3008 * supported, need to load the additional DDC config to enable.
3010 btintel_read_debug_features(hdev, &features);
3012 /* Set DDC mask for available debug features */
3013 btintel_set_debug_features(hdev, &features);
3015 /* Read the Intel version information after loading the FW */
3016 err = btintel_read_version_tlv(hdev, &version);
3020 btintel_version_info_tlv(hdev, &version);
3023 /* Set the event mask for Intel specific vendor events. This enables
3024 * a few extra events that are useful during general operation. It
3025 * does not enable any debugging related events.
3027 * The device will function correctly without these events enabled
3028 * and thus no need to fail the setup.
3030 btintel_set_event_mask(hdev, false);
3034 static int btusb_shutdown_intel(struct hci_dev *hdev)
3036 struct sk_buff *skb;
3039 /* In the shutdown sequence where Bluetooth is turned off followed
3040 * by WiFi being turned off, turning WiFi back on causes issue with
3041 * the RF calibration.
3043 * To ensure that any RF activity has been stopped, issue HCI Reset
3044 * command to clear all ongoing activity including advertising,
3047 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
3050 bt_dev_err(hdev, "HCI reset during shutdown failed");
3055 /* Some platforms have an issue with BT LED when the interface is
3056 * down or BT radio is turned off, which takes 5 seconds to BT LED
3057 * goes off. This command turns off the BT LED immediately.
3059 skb = __hci_cmd_sync(hdev, 0xfc3f, 0, NULL, HCI_INIT_TIMEOUT);
3062 bt_dev_err(hdev, "turning off Intel device LED failed");
3070 static int btusb_shutdown_intel_new(struct hci_dev *hdev)
3072 struct sk_buff *skb;
3074 /* Send HCI Reset to the controller to stop any BT activity which
3075 * were triggered. This will help to save power and maintain the
3076 * sync b/w Host and controller
3078 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
3080 bt_dev_err(hdev, "HCI reset during shutdown failed");
3081 return PTR_ERR(skb);
3088 #define FIRMWARE_MT7663 "mediatek/mt7663pr2h.bin"
3089 #define FIRMWARE_MT7668 "mediatek/mt7668pr2h.bin"
3091 #define HCI_WMT_MAX_EVENT_SIZE 64
3094 BTMTK_WMT_PATCH_DWNLD = 0x1,
3095 BTMTK_WMT_FUNC_CTRL = 0x6,
3096 BTMTK_WMT_RST = 0x7,
3097 BTMTK_WMT_SEMAPHORE = 0x17,
3102 BTMTK_WMT_PATCH_UNDONE,
3103 BTMTK_WMT_PATCH_DONE,
3104 BTMTK_WMT_ON_UNDONE,
3106 BTMTK_WMT_ON_PROGRESS,
3109 struct btmtk_wmt_hdr {
3116 struct btmtk_hci_wmt_cmd {
3117 struct btmtk_wmt_hdr hdr;
3121 struct btmtk_hci_wmt_evt {
3122 struct hci_event_hdr hhdr;
3123 struct btmtk_wmt_hdr whdr;
3126 struct btmtk_hci_wmt_evt_funcc {
3127 struct btmtk_hci_wmt_evt hwhdr;
3131 struct btmtk_tci_sleep {
3134 __le16 host_duration;
3136 u8 time_compensation;
3139 struct btmtk_hci_wmt_params {
3147 static void btusb_mtk_wmt_recv(struct urb *urb)
3149 struct hci_dev *hdev = urb->context;
3150 struct btusb_data *data = hci_get_drvdata(hdev);
3151 struct hci_event_hdr *hdr;
3152 struct sk_buff *skb;
3155 if (urb->status == 0 && urb->actual_length > 0) {
3156 hdev->stat.byte_rx += urb->actual_length;
3158 /* WMT event shouldn't be fragmented and the size should be
3159 * less than HCI_WMT_MAX_EVENT_SIZE.
3161 skb = bt_skb_alloc(HCI_WMT_MAX_EVENT_SIZE, GFP_ATOMIC);
3163 hdev->stat.err_rx++;
3167 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
3168 skb_put_data(skb, urb->transfer_buffer, urb->actual_length);
3170 hdr = (void *)skb->data;
3171 /* Fix up the vendor event id with 0xff for vendor specific
3172 * instead of 0xe4 so that event send via monitoring socket can
3173 * be parsed properly.
3177 /* When someone waits for the WMT event, the skb is being cloned
3178 * and being processed the events from there then.
3180 if (test_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags)) {
3181 data->evt_skb = skb_clone(skb, GFP_ATOMIC);
3186 err = hci_recv_frame(hdev, skb);
3190 if (test_and_clear_bit(BTUSB_TX_WAIT_VND_EVT,
3192 /* Barrier to sync with other CPUs */
3193 smp_mb__after_atomic();
3194 wake_up_bit(&data->flags,
3195 BTUSB_TX_WAIT_VND_EVT);
3200 kfree_skb(data->evt_skb);
3201 data->evt_skb = NULL;
3203 } else if (urb->status == -ENOENT) {
3204 /* Avoid suspend failed when usb_kill_urb */
3208 usb_mark_last_busy(data->udev);
3210 /* The URB complete handler is still called with urb->actual_length = 0
3211 * when the event is not available, so we should keep re-submitting
3212 * URB until WMT event returns, Also, It's necessary to wait some time
3213 * between the two consecutive control URBs to relax the target device
3214 * to generate the event. Otherwise, the WMT event cannot return from
3215 * the device successfully.
3219 usb_anchor_urb(urb, &data->ctrl_anchor);
3220 err = usb_submit_urb(urb, GFP_ATOMIC);
3222 /* -EPERM: urb is being killed;
3223 * -ENODEV: device got disconnected
3225 if (err != -EPERM && err != -ENODEV)
3226 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
3228 usb_unanchor_urb(urb);
3232 static int btusb_mtk_submit_wmt_recv_urb(struct hci_dev *hdev)
3234 struct btusb_data *data = hci_get_drvdata(hdev);
3235 struct usb_ctrlrequest *dr;
3241 urb = usb_alloc_urb(0, GFP_KERNEL);
3245 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
3251 dr->bRequestType = USB_TYPE_VENDOR | USB_DIR_IN;
3253 dr->wIndex = cpu_to_le16(0);
3254 dr->wValue = cpu_to_le16(48);
3255 dr->wLength = cpu_to_le16(size);
3257 buf = kmalloc(size, GFP_KERNEL);
3264 pipe = usb_rcvctrlpipe(data->udev, 0);
3266 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
3267 buf, size, btusb_mtk_wmt_recv, hdev);
3269 urb->transfer_flags |= URB_FREE_BUFFER;
3271 usb_anchor_urb(urb, &data->ctrl_anchor);
3272 err = usb_submit_urb(urb, GFP_KERNEL);
3274 if (err != -EPERM && err != -ENODEV)
3275 bt_dev_err(hdev, "urb %p submission failed (%d)",
3277 usb_unanchor_urb(urb);
3285 static int btusb_mtk_hci_wmt_sync(struct hci_dev *hdev,
3286 struct btmtk_hci_wmt_params *wmt_params)
3288 struct btusb_data *data = hci_get_drvdata(hdev);
3289 struct btmtk_hci_wmt_evt_funcc *wmt_evt_funcc;
3290 u32 hlen, status = BTMTK_WMT_INVALID;
3291 struct btmtk_hci_wmt_evt *wmt_evt;
3292 struct btmtk_hci_wmt_cmd wc;
3293 struct btmtk_wmt_hdr *hdr;
3296 /* Submit control IN URB on demand to process the WMT event */
3297 err = btusb_mtk_submit_wmt_recv_urb(hdev);
3301 /* Send the WMT command and wait until the WMT event returns */
3302 hlen = sizeof(*hdr) + wmt_params->dlen;
3306 hdr = (struct btmtk_wmt_hdr *)&wc;
3308 hdr->op = wmt_params->op;
3309 hdr->dlen = cpu_to_le16(wmt_params->dlen + 1);
3310 hdr->flag = wmt_params->flag;
3311 memcpy(wc.data, wmt_params->data, wmt_params->dlen);
3313 set_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
3315 err = __hci_cmd_send(hdev, 0xfc6f, hlen, &wc);
3318 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
3322 /* The vendor specific WMT commands are all answered by a vendor
3323 * specific event and will have the Command Status or Command
3324 * Complete as with usual HCI command flow control.
3326 * After sending the command, wait for BTUSB_TX_WAIT_VND_EVT
3327 * state to be cleared. The driver specific event receive routine
3328 * will clear that state and with that indicate completion of the
3331 err = wait_on_bit_timeout(&data->flags, BTUSB_TX_WAIT_VND_EVT,
3332 TASK_INTERRUPTIBLE, HCI_INIT_TIMEOUT);
3333 if (err == -EINTR) {
3334 bt_dev_err(hdev, "Execution of wmt command interrupted");
3335 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
3340 bt_dev_err(hdev, "Execution of wmt command timed out");
3341 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
3345 /* Parse and handle the return WMT event */
3346 wmt_evt = (struct btmtk_hci_wmt_evt *)data->evt_skb->data;
3347 if (wmt_evt->whdr.op != hdr->op) {
3348 bt_dev_err(hdev, "Wrong op received %d expected %d",
3349 wmt_evt->whdr.op, hdr->op);
3354 switch (wmt_evt->whdr.op) {
3355 case BTMTK_WMT_SEMAPHORE:
3356 if (wmt_evt->whdr.flag == 2)
3357 status = BTMTK_WMT_PATCH_UNDONE;
3359 status = BTMTK_WMT_PATCH_DONE;
3361 case BTMTK_WMT_FUNC_CTRL:
3362 wmt_evt_funcc = (struct btmtk_hci_wmt_evt_funcc *)wmt_evt;
3363 if (be16_to_cpu(wmt_evt_funcc->status) == 0x404)
3364 status = BTMTK_WMT_ON_DONE;
3365 else if (be16_to_cpu(wmt_evt_funcc->status) == 0x420)
3366 status = BTMTK_WMT_ON_PROGRESS;
3368 status = BTMTK_WMT_ON_UNDONE;
3372 if (wmt_params->status)
3373 *wmt_params->status = status;
3376 kfree_skb(data->evt_skb);
3377 data->evt_skb = NULL;
3382 static int btusb_mtk_setup_firmware(struct hci_dev *hdev, const char *fwname)
3384 struct btmtk_hci_wmt_params wmt_params;
3385 const struct firmware *fw;
3391 err = request_firmware(&fw, fwname, &hdev->dev);
3393 bt_dev_err(hdev, "Failed to load firmware file (%d)", err);
3397 /* Power on data RAM the firmware relies on. */
3399 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3400 wmt_params.flag = 3;
3401 wmt_params.dlen = sizeof(param);
3402 wmt_params.data = ¶m;
3403 wmt_params.status = NULL;
3405 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3407 bt_dev_err(hdev, "Failed to power on data RAM (%d)", err);
3408 goto err_release_fw;
3414 /* The size of patch header is 30 bytes, should be skip */
3417 goto err_release_fw;
3424 wmt_params.op = BTMTK_WMT_PATCH_DWNLD;
3425 wmt_params.status = NULL;
3427 while (fw_size > 0) {
3428 dlen = min_t(int, 250, fw_size);
3430 /* Tell deivice the position in sequence */
3431 if (fw_size - dlen <= 0)
3433 else if (fw_size < fw->size - 30)
3436 wmt_params.flag = flag;
3437 wmt_params.dlen = dlen;
3438 wmt_params.data = fw_ptr;
3440 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3442 bt_dev_err(hdev, "Failed to send wmt patch dwnld (%d)",
3444 goto err_release_fw;
3451 wmt_params.op = BTMTK_WMT_RST;
3452 wmt_params.flag = 4;
3453 wmt_params.dlen = 0;
3454 wmt_params.data = NULL;
3455 wmt_params.status = NULL;
3457 /* Activate funciton the firmware providing to */
3458 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3460 bt_dev_err(hdev, "Failed to send wmt rst (%d)", err);
3461 goto err_release_fw;
3464 /* Wait a few moments for firmware activation done */
3465 usleep_range(10000, 12000);
3468 release_firmware(fw);
3473 static int btusb_mtk_func_query(struct hci_dev *hdev)
3475 struct btmtk_hci_wmt_params wmt_params;
3479 /* Query whether the function is enabled */
3480 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3481 wmt_params.flag = 4;
3482 wmt_params.dlen = sizeof(param);
3483 wmt_params.data = ¶m;
3484 wmt_params.status = &status;
3486 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3488 bt_dev_err(hdev, "Failed to query function status (%d)", err);
3495 static int btusb_mtk_reg_read(struct btusb_data *data, u32 reg, u32 *val)
3497 int pipe, err, size = sizeof(u32);
3500 buf = kzalloc(size, GFP_KERNEL);
3504 pipe = usb_rcvctrlpipe(data->udev, 0);
3505 err = usb_control_msg(data->udev, pipe, 0x63,
3506 USB_TYPE_VENDOR | USB_DIR_IN,
3507 reg >> 16, reg & 0xffff,
3508 buf, size, USB_CTRL_SET_TIMEOUT);
3512 *val = get_unaligned_le32(buf);
3520 static int btusb_mtk_id_get(struct btusb_data *data, u32 *id)
3522 return btusb_mtk_reg_read(data, 0x80000008, id);
3525 static int btusb_mtk_setup(struct hci_dev *hdev)
3527 struct btusb_data *data = hci_get_drvdata(hdev);
3528 struct btmtk_hci_wmt_params wmt_params;
3529 ktime_t calltime, delta, rettime;
3530 struct btmtk_tci_sleep tci_sleep;
3531 unsigned long long duration;
3532 struct sk_buff *skb;
3538 calltime = ktime_get();
3540 err = btusb_mtk_id_get(data, &dev_id);
3542 bt_dev_err(hdev, "Failed to get device id (%d)", err);
3548 fwname = FIRMWARE_MT7663;
3551 fwname = FIRMWARE_MT7668;
3554 bt_dev_err(hdev, "Unsupported support hardware variant (%08x)",
3559 /* Query whether the firmware is already download */
3560 wmt_params.op = BTMTK_WMT_SEMAPHORE;
3561 wmt_params.flag = 1;
3562 wmt_params.dlen = 0;
3563 wmt_params.data = NULL;
3564 wmt_params.status = &status;
3566 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3568 bt_dev_err(hdev, "Failed to query firmware status (%d)", err);
3572 if (status == BTMTK_WMT_PATCH_DONE) {
3573 bt_dev_info(hdev, "firmware already downloaded");
3574 goto ignore_setup_fw;
3577 /* Setup a firmware which the device definitely requires */
3578 err = btusb_mtk_setup_firmware(hdev, fwname);
3583 err = readx_poll_timeout(btusb_mtk_func_query, hdev, status,
3584 status < 0 || status != BTMTK_WMT_ON_PROGRESS,
3586 /* -ETIMEDOUT happens */
3590 /* The other errors happen in btusb_mtk_func_query */
3594 if (status == BTMTK_WMT_ON_DONE) {
3595 bt_dev_info(hdev, "function already on");
3596 goto ignore_func_on;
3599 /* Enable Bluetooth protocol */
3601 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3602 wmt_params.flag = 0;
3603 wmt_params.dlen = sizeof(param);
3604 wmt_params.data = ¶m;
3605 wmt_params.status = NULL;
3607 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3609 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3614 /* Apply the low power environment setup */
3615 tci_sleep.mode = 0x5;
3616 tci_sleep.duration = cpu_to_le16(0x640);
3617 tci_sleep.host_duration = cpu_to_le16(0x640);
3618 tci_sleep.host_wakeup_pin = 0;
3619 tci_sleep.time_compensation = 0;
3621 skb = __hci_cmd_sync(hdev, 0xfc7a, sizeof(tci_sleep), &tci_sleep,
3625 bt_dev_err(hdev, "Failed to apply low power setting (%d)", err);
3630 rettime = ktime_get();
3631 delta = ktime_sub(rettime, calltime);
3632 duration = (unsigned long long)ktime_to_ns(delta) >> 10;
3634 bt_dev_info(hdev, "Device setup in %llu usecs", duration);
3639 static int btusb_mtk_shutdown(struct hci_dev *hdev)
3641 struct btmtk_hci_wmt_params wmt_params;
3645 /* Disable the device */
3646 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3647 wmt_params.flag = 0;
3648 wmt_params.dlen = sizeof(param);
3649 wmt_params.data = ¶m;
3650 wmt_params.status = NULL;
3652 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3654 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3661 MODULE_FIRMWARE(FIRMWARE_MT7663);
3662 MODULE_FIRMWARE(FIRMWARE_MT7668);
3665 /* Configure an out-of-band gpio as wake-up pin, if specified in device tree */
3666 static int marvell_config_oob_wake(struct hci_dev *hdev)
3668 struct sk_buff *skb;
3669 struct btusb_data *data = hci_get_drvdata(hdev);
3670 struct device *dev = &data->udev->dev;
3671 u16 pin, gap, opcode;
3675 /* Move on if no wakeup pin specified */
3676 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) ||
3677 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap))
3680 /* Vendor specific command to configure a GPIO as wake-up pin */
3681 opcode = hci_opcode_pack(0x3F, 0x59);
3682 cmd[0] = opcode & 0xFF;
3683 cmd[1] = opcode >> 8;
3684 cmd[2] = 2; /* length of parameters that follow */
3686 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */
3688 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
3690 bt_dev_err(hdev, "%s: No memory\n", __func__);
3694 skb_put_data(skb, cmd, sizeof(cmd));
3695 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT;
3697 ret = btusb_send_frame(hdev, skb);
3699 bt_dev_err(hdev, "%s: configuration failed\n", __func__);
3708 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
3709 const bdaddr_t *bdaddr)
3711 struct sk_buff *skb;
3716 buf[1] = sizeof(bdaddr_t);
3717 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
3719 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
3722 bt_dev_err(hdev, "changing Marvell device address failed (%ld)",
3731 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
3732 const bdaddr_t *bdaddr)
3734 struct sk_buff *skb;
3741 buf[3] = sizeof(bdaddr_t);
3742 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
3744 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
3747 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
3755 static int btusb_set_bdaddr_wcn6855(struct hci_dev *hdev,
3756 const bdaddr_t *bdaddr)
3758 struct sk_buff *skb;
3762 memcpy(buf, bdaddr, sizeof(bdaddr_t));
3764 skb = __hci_cmd_sync_ev(hdev, 0xfc14, sizeof(buf), buf,
3765 HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT);
3768 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
3776 #define QCA_DFU_PACKET_LEN 4096
3778 #define QCA_GET_TARGET_VERSION 0x09
3779 #define QCA_CHECK_STATUS 0x05
3780 #define QCA_DFU_DOWNLOAD 0x01
3782 #define QCA_SYSCFG_UPDATED 0x40
3783 #define QCA_PATCH_UPDATED 0x80
3784 #define QCA_DFU_TIMEOUT 3000
3785 #define QCA_FLAG_MULTI_NVM 0x80
3787 struct qca_version {
3789 __le32 patch_version;
3796 struct qca_rampatch_version {
3797 __le16 rom_version_high;
3798 __le16 rom_version_low;
3799 __le16 patch_version;
3802 struct qca_device_info {
3804 u8 rampatch_hdr; /* length of header in rampatch */
3805 u8 nvm_hdr; /* length of header in NVM */
3806 u8 ver_offset; /* offset of version structure in rampatch */
3809 static const struct qca_device_info qca_devices_table[] = {
3810 { 0x00000100, 20, 4, 8 }, /* Rome 1.0 */
3811 { 0x00000101, 20, 4, 8 }, /* Rome 1.1 */
3812 { 0x00000200, 28, 4, 16 }, /* Rome 2.0 */
3813 { 0x00000201, 28, 4, 16 }, /* Rome 2.1 */
3814 { 0x00000300, 28, 4, 16 }, /* Rome 3.0 */
3815 { 0x00000302, 28, 4, 16 }, /* Rome 3.2 */
3816 { 0x00130100, 40, 4, 16 }, /* WCN6855 1.0 */
3817 { 0x00130200, 40, 4, 16 }, /* WCN6855 2.0 */
3820 static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request,
3821 void *data, u16 size)
3826 buf = kmalloc(size, GFP_KERNEL);
3830 /* Found some of USB hosts have IOT issues with ours so that we should
3831 * not wait until HCI layer is ready.
3833 pipe = usb_rcvctrlpipe(udev, 0);
3834 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
3835 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
3837 dev_err(&udev->dev, "Failed to access otp area (%d)", err);
3841 memcpy(data, buf, size);
3849 static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
3850 const struct firmware *firmware,
3853 struct btusb_data *btdata = hci_get_drvdata(hdev);
3854 struct usb_device *udev = btdata->udev;
3855 size_t count, size, sent = 0;
3859 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
3863 count = firmware->size;
3865 size = min_t(size_t, count, hdr_size);
3866 memcpy(buf, firmware->data, size);
3868 /* USB patches should go down to controller through USB path
3869 * because binary format fits to go down through USB channel.
3870 * USB control path is for patching headers and USB bulk is for
3873 pipe = usb_sndctrlpipe(udev, 0);
3874 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
3875 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
3877 bt_dev_err(hdev, "Failed to send headers (%d)", err);
3885 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
3887 memcpy(buf, firmware->data + sent, size);
3889 pipe = usb_sndbulkpipe(udev, 0x02);
3890 err = usb_bulk_msg(udev, pipe, buf, size, &len,
3893 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)",
3894 sent, firmware->size, err);
3899 bt_dev_err(hdev, "Failed to get bulk buffer");
3913 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
3914 struct qca_version *ver,
3915 const struct qca_device_info *info)
3917 struct qca_rampatch_version *rver;
3918 const struct firmware *fw;
3919 u32 ver_rom, ver_patch, rver_rom;
3920 u16 rver_rom_low, rver_rom_high, rver_patch;
3924 ver_rom = le32_to_cpu(ver->rom_version);
3925 ver_patch = le32_to_cpu(ver->patch_version);
3927 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom);
3929 err = request_firmware(&fw, fwname, &hdev->dev);
3931 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)",
3936 bt_dev_info(hdev, "using rampatch file: %s", fwname);
3938 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
3939 rver_rom_low = le16_to_cpu(rver->rom_version_low);
3940 rver_patch = le16_to_cpu(rver->patch_version);
3942 if (ver_rom & ~0xffffU) {
3943 rver_rom_high = le16_to_cpu(rver->rom_version_high);
3944 rver_rom = le32_to_cpu(rver_rom_high << 16 | rver_rom_low);
3946 rver_rom = rver_rom_low;
3949 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, "
3950 "firmware rome 0x%x build 0x%x",
3951 rver_rom, rver_patch, ver_rom, ver_patch);
3953 if (rver_rom != ver_rom || rver_patch <= ver_patch) {
3954 bt_dev_err(hdev, "rampatch file version did not match with firmware");
3959 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
3962 release_firmware(fw);
3967 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
3968 struct qca_version *ver,
3969 const struct qca_device_info *info)
3971 const struct firmware *fw;
3975 if (((ver->flag >> 8) & 0xff) == QCA_FLAG_MULTI_NVM) {
3976 snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x_%04x.bin",
3977 le32_to_cpu(ver->rom_version),
3978 le16_to_cpu(ver->board_id));
3980 snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin",
3981 le32_to_cpu(ver->rom_version));
3984 err = request_firmware(&fw, fwname, &hdev->dev);
3986 bt_dev_err(hdev, "failed to request NVM file: %s (%d)",
3991 bt_dev_info(hdev, "using NVM file: %s", fwname);
3993 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
3995 release_firmware(fw);
4000 /* identify the ROM version and check whether patches are needed */
4001 static bool btusb_qca_need_patch(struct usb_device *udev)
4003 struct qca_version ver;
4005 if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
4008 /* only low ROM versions need patches */
4009 return !(le32_to_cpu(ver.rom_version) & ~0xffffU);
4012 static int btusb_setup_qca(struct hci_dev *hdev)
4014 struct btusb_data *btdata = hci_get_drvdata(hdev);
4015 struct usb_device *udev = btdata->udev;
4016 const struct qca_device_info *info = NULL;
4017 struct qca_version ver;
4022 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
4027 ver_rom = le32_to_cpu(ver.rom_version);
4029 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
4030 if (ver_rom == qca_devices_table[i].rom_version)
4031 info = &qca_devices_table[i];
4034 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom);
4038 err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status,
4043 if (!(status & QCA_PATCH_UPDATED)) {
4044 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
4049 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
4054 if (!(status & QCA_SYSCFG_UPDATED)) {
4055 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
4063 static inline int __set_diag_interface(struct hci_dev *hdev)
4065 struct btusb_data *data = hci_get_drvdata(hdev);
4066 struct usb_interface *intf = data->diag;
4072 data->diag_tx_ep = NULL;
4073 data->diag_rx_ep = NULL;
4075 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
4076 struct usb_endpoint_descriptor *ep_desc;
4078 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
4080 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
4081 data->diag_tx_ep = ep_desc;
4085 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
4086 data->diag_rx_ep = ep_desc;
4091 if (!data->diag_tx_ep || !data->diag_rx_ep) {
4092 bt_dev_err(hdev, "invalid diagnostic descriptors");
4099 static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable)
4101 struct btusb_data *data = hci_get_drvdata(hdev);
4102 struct sk_buff *skb;
4106 if (!data->diag_tx_ep)
4107 return ERR_PTR(-ENODEV);
4109 urb = usb_alloc_urb(0, GFP_KERNEL);
4111 return ERR_PTR(-ENOMEM);
4113 skb = bt_skb_alloc(2, GFP_KERNEL);
4116 return ERR_PTR(-ENOMEM);
4119 skb_put_u8(skb, 0xf0);
4120 skb_put_u8(skb, enable);
4122 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress);
4124 usb_fill_bulk_urb(urb, data->udev, pipe,
4125 skb->data, skb->len, btusb_tx_complete, skb);
4127 skb->dev = (void *)hdev;
4132 static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable)
4134 struct btusb_data *data = hci_get_drvdata(hdev);
4140 if (!test_bit(HCI_RUNNING, &hdev->flags))
4143 urb = alloc_diag_urb(hdev, enable);
4145 return PTR_ERR(urb);
4147 return submit_or_queue_tx_urb(hdev, urb);
4151 static irqreturn_t btusb_oob_wake_handler(int irq, void *priv)
4153 struct btusb_data *data = priv;
4155 pm_wakeup_event(&data->udev->dev, 0);
4158 /* Disable only if not already disabled (keep it balanced) */
4159 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
4160 disable_irq_nosync(irq);
4161 disable_irq_wake(irq);
4166 static const struct of_device_id btusb_match_table[] = {
4167 { .compatible = "usb1286,204e" },
4168 { .compatible = "usbcf3,e300" }, /* QCA6174A */
4169 { .compatible = "usb4ca,301a" }, /* QCA6174A (Lite-On) */
4172 MODULE_DEVICE_TABLE(of, btusb_match_table);
4174 /* Use an oob wakeup pin? */
4175 static int btusb_config_oob_wake(struct hci_dev *hdev)
4177 struct btusb_data *data = hci_get_drvdata(hdev);
4178 struct device *dev = &data->udev->dev;
4181 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
4183 if (!of_match_device(btusb_match_table, dev))
4186 /* Move on if no IRQ specified */
4187 irq = of_irq_get_byname(dev->of_node, "wakeup");
4189 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__);
4193 irq_set_status_flags(irq, IRQ_NOAUTOEN);
4194 ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler,
4195 0, "OOB Wake-on-BT", data);
4197 bt_dev_err(hdev, "%s: IRQ request failed", __func__);
4201 ret = device_init_wakeup(dev, true);
4203 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__);
4207 data->oob_wake_irq = irq;
4208 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq);
4213 static void btusb_check_needs_reset_resume(struct usb_interface *intf)
4215 if (dmi_check_system(btusb_needs_reset_resume_table))
4216 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
4219 static bool btusb_prevent_wake(struct hci_dev *hdev)
4221 struct btusb_data *data = hci_get_drvdata(hdev);
4223 if (test_bit(BTUSB_WAKEUP_DISABLE, &data->flags))
4226 return !device_may_wakeup(&data->udev->dev);
4229 static int btusb_probe(struct usb_interface *intf,
4230 const struct usb_device_id *id)
4232 struct usb_endpoint_descriptor *ep_desc;
4233 struct gpio_desc *reset_gpio;
4234 struct btusb_data *data;
4235 struct hci_dev *hdev;
4236 unsigned ifnum_base;
4239 BT_DBG("intf %p id %p", intf, id);
4241 /* interface numbers are hardcoded in the spec */
4242 if (intf->cur_altsetting->desc.bInterfaceNumber != 0) {
4243 if (!(id->driver_info & BTUSB_IFNUM_2))
4245 if (intf->cur_altsetting->desc.bInterfaceNumber != 2)
4249 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber;
4251 if (!id->driver_info) {
4252 const struct usb_device_id *match;
4254 match = usb_match_id(intf, blacklist_table);
4259 if (id->driver_info == BTUSB_IGNORE)
4262 if (id->driver_info & BTUSB_ATH3012) {
4263 struct usb_device *udev = interface_to_usbdev(intf);
4265 /* Old firmware would otherwise let ath3k driver load
4266 * patch and sysconfig files
4268 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 &&
4269 !btusb_qca_need_patch(udev))
4273 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
4277 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
4278 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
4280 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
4281 data->intr_ep = ep_desc;
4285 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
4286 data->bulk_tx_ep = ep_desc;
4290 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
4291 data->bulk_rx_ep = ep_desc;
4296 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
4299 if (id->driver_info & BTUSB_AMP) {
4300 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
4301 data->cmdreq = 0x2b;
4303 data->cmdreq_type = USB_TYPE_CLASS;
4304 data->cmdreq = 0x00;
4307 data->udev = interface_to_usbdev(intf);
4310 INIT_WORK(&data->work, btusb_work);
4311 INIT_WORK(&data->waker, btusb_waker);
4312 init_usb_anchor(&data->deferred);
4313 init_usb_anchor(&data->tx_anchor);
4314 spin_lock_init(&data->txlock);
4316 init_usb_anchor(&data->intr_anchor);
4317 init_usb_anchor(&data->bulk_anchor);
4318 init_usb_anchor(&data->isoc_anchor);
4319 init_usb_anchor(&data->diag_anchor);
4320 init_usb_anchor(&data->ctrl_anchor);
4321 spin_lock_init(&data->rxlock);
4323 if (id->driver_info & BTUSB_INTEL_NEW) {
4324 data->recv_event = btusb_recv_event_intel;
4325 data->recv_bulk = btusb_recv_bulk_intel;
4326 set_bit(BTUSB_BOOTLOADER, &data->flags);
4328 data->recv_event = hci_recv_frame;
4329 data->recv_bulk = btusb_recv_bulk;
4332 hdev = hci_alloc_dev();
4336 hdev->bus = HCI_USB;
4337 hci_set_drvdata(hdev, data);
4339 if (id->driver_info & BTUSB_AMP)
4340 hdev->dev_type = HCI_AMP;
4342 hdev->dev_type = HCI_PRIMARY;
4346 SET_HCIDEV_DEV(hdev, &intf->dev);
4348 reset_gpio = gpiod_get_optional(&data->udev->dev, "reset",
4350 if (IS_ERR(reset_gpio)) {
4351 err = PTR_ERR(reset_gpio);
4353 } else if (reset_gpio) {
4354 data->reset_gpio = reset_gpio;
4357 hdev->open = btusb_open;
4358 hdev->close = btusb_close;
4359 hdev->flush = btusb_flush;
4360 hdev->send = btusb_send_frame;
4361 hdev->notify = btusb_notify;
4362 hdev->prevent_wake = btusb_prevent_wake;
4365 err = btusb_config_oob_wake(hdev);
4369 /* Marvell devices may need a specific chip configuration */
4370 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) {
4371 err = marvell_config_oob_wake(hdev);
4376 if (id->driver_info & BTUSB_CW6622)
4377 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
4379 if (id->driver_info & BTUSB_BCM2045)
4380 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
4382 if (id->driver_info & BTUSB_BCM92035)
4383 hdev->setup = btusb_setup_bcm92035;
4385 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
4386 (id->driver_info & BTUSB_BCM_PATCHRAM)) {
4387 hdev->manufacturer = 15;
4388 hdev->setup = btbcm_setup_patchram;
4389 hdev->set_diag = btusb_bcm_set_diag;
4390 hdev->set_bdaddr = btbcm_set_bdaddr;
4392 /* Broadcom LM_DIAG Interface numbers are hardcoded */
4393 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
4396 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
4397 (id->driver_info & BTUSB_BCM_APPLE)) {
4398 hdev->manufacturer = 15;
4399 hdev->setup = btbcm_setup_apple;
4400 hdev->set_diag = btusb_bcm_set_diag;
4402 /* Broadcom LM_DIAG Interface numbers are hardcoded */
4403 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
4406 if (id->driver_info & BTUSB_INTEL) {
4407 hdev->manufacturer = 2;
4408 hdev->setup = btusb_setup_intel;
4409 hdev->shutdown = btusb_shutdown_intel;
4410 hdev->set_diag = btintel_set_diag_mfg;
4411 hdev->set_bdaddr = btintel_set_bdaddr;
4412 hdev->cmd_timeout = btusb_intel_cmd_timeout;
4413 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
4414 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4415 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks);
4418 if (id->driver_info & BTUSB_INTEL_NEW) {
4419 hdev->manufacturer = 2;
4420 hdev->send = btusb_send_frame_intel;
4421 hdev->setup = btusb_setup_intel_new;
4422 hdev->shutdown = btusb_shutdown_intel_new;
4423 hdev->hw_error = btintel_hw_error;
4424 hdev->set_diag = btintel_set_diag;
4425 hdev->set_bdaddr = btintel_set_bdaddr;
4426 hdev->cmd_timeout = btusb_intel_cmd_timeout;
4427 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
4428 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4429 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks);
4432 if (id->driver_info & BTUSB_INTEL_NEWGEN) {
4433 hdev->manufacturer = 2;
4434 hdev->send = btusb_send_frame_intel;
4435 hdev->setup = btusb_setup_intel_newgen;
4436 hdev->shutdown = btusb_shutdown_intel_new;
4437 hdev->hw_error = btintel_hw_error;
4438 hdev->set_diag = btintel_set_diag;
4439 hdev->set_bdaddr = btintel_set_bdaddr;
4440 hdev->cmd_timeout = btusb_intel_cmd_timeout;
4441 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
4442 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4443 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks);
4445 data->recv_event = btusb_recv_event_intel;
4446 data->recv_bulk = btusb_recv_bulk_intel;
4447 set_bit(BTUSB_BOOTLOADER, &data->flags);
4450 if (id->driver_info & BTUSB_MARVELL)
4451 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
4453 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_MTK) &&
4454 (id->driver_info & BTUSB_MEDIATEK)) {
4455 hdev->setup = btusb_mtk_setup;
4456 hdev->shutdown = btusb_mtk_shutdown;
4457 hdev->manufacturer = 70;
4458 set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
4461 if (id->driver_info & BTUSB_SWAVE) {
4462 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
4463 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
4466 if (id->driver_info & BTUSB_INTEL_BOOT) {
4467 hdev->manufacturer = 2;
4468 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
4471 if (id->driver_info & BTUSB_ATH3012) {
4472 data->setup_on_usb = btusb_setup_qca;
4473 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
4474 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4475 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
4478 if (id->driver_info & BTUSB_QCA_ROME) {
4479 data->setup_on_usb = btusb_setup_qca;
4480 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
4481 hdev->cmd_timeout = btusb_qca_cmd_timeout;
4482 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4483 btusb_check_needs_reset_resume(intf);
4486 if (id->driver_info & BTUSB_QCA_WCN6855) {
4487 data->setup_on_usb = btusb_setup_qca;
4488 hdev->set_bdaddr = btusb_set_bdaddr_wcn6855;
4489 hdev->cmd_timeout = btusb_qca_cmd_timeout;
4490 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4493 if (id->driver_info & BTUSB_AMP) {
4494 /* AMP controllers do not support SCO packets */
4497 /* Interface orders are hardcoded in the specification */
4498 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1);
4499 data->isoc_ifnum = ifnum_base + 1;
4502 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_RTL) &&
4503 (id->driver_info & BTUSB_REALTEK)) {
4504 hdev->setup = btrtl_setup_realtek;
4505 hdev->shutdown = btrtl_shutdown_realtek;
4506 hdev->cmd_timeout = btusb_rtl_cmd_timeout;
4508 /* Realtek devices lose their updated firmware over global
4509 * suspend that means host doesn't send SET_FEATURE
4510 * (DEVICE_REMOTE_WAKEUP)
4512 set_bit(BTUSB_WAKEUP_DISABLE, &data->flags);
4513 if (btusb_find_altsetting(data, 1))
4514 set_bit(BTUSB_USE_ALT1_FOR_WBS, &data->flags);
4516 bt_dev_err(hdev, "Device does not support ALT setting 1");
4520 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
4522 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
4523 if (!disable_scofix)
4524 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
4527 if (id->driver_info & BTUSB_BROKEN_ISOC)
4530 if (id->driver_info & BTUSB_WIDEBAND_SPEECH)
4531 set_bit(HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED, &hdev->quirks);
4533 if (id->driver_info & BTUSB_VALID_LE_STATES)
4534 set_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks);
4536 if (id->driver_info & BTUSB_DIGIANSWER) {
4537 data->cmdreq_type = USB_TYPE_VENDOR;
4538 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
4541 if (id->driver_info & BTUSB_CSR) {
4542 struct usb_device *udev = data->udev;
4543 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
4545 /* Old firmware would otherwise execute USB reset */
4546 if (bcdDevice < 0x117)
4547 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
4549 /* This must be set first in case we disable it for fakes */
4550 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4552 /* Fake CSR devices with broken commands */
4553 if (le16_to_cpu(udev->descriptor.idVendor) == 0x0a12 &&
4554 le16_to_cpu(udev->descriptor.idProduct) == 0x0001)
4555 hdev->setup = btusb_setup_csr;
4558 if (id->driver_info & BTUSB_SNIFFER) {
4559 struct usb_device *udev = data->udev;
4561 /* New sniffer firmware has crippled HCI interface */
4562 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
4563 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
4566 if (id->driver_info & BTUSB_INTEL_BOOT) {
4567 /* A bug in the bootloader causes that interrupt interface is
4568 * only enabled after receiving SetInterface(0, AltSetting=0).
4570 err = usb_set_interface(data->udev, 0, 0);
4572 BT_ERR("failed to set interface 0, alt 0 %d", err);
4578 err = usb_driver_claim_interface(&btusb_driver,
4584 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && data->diag) {
4585 if (!usb_driver_claim_interface(&btusb_driver,
4587 __set_diag_interface(hdev);
4592 if (enable_autosuspend)
4593 usb_enable_autosuspend(data->udev);
4595 err = hci_register_dev(hdev);
4599 usb_set_intfdata(intf, data);
4604 if (data->reset_gpio)
4605 gpiod_put(data->reset_gpio);
4610 static void btusb_disconnect(struct usb_interface *intf)
4612 struct btusb_data *data = usb_get_intfdata(intf);
4613 struct hci_dev *hdev;
4615 BT_DBG("intf %p", intf);
4621 usb_set_intfdata(data->intf, NULL);
4624 usb_set_intfdata(data->isoc, NULL);
4627 usb_set_intfdata(data->diag, NULL);
4629 hci_unregister_dev(hdev);
4631 if (intf == data->intf) {
4633 usb_driver_release_interface(&btusb_driver, data->isoc);
4635 usb_driver_release_interface(&btusb_driver, data->diag);
4636 } else if (intf == data->isoc) {
4638 usb_driver_release_interface(&btusb_driver, data->diag);
4639 usb_driver_release_interface(&btusb_driver, data->intf);
4640 } else if (intf == data->diag) {
4641 usb_driver_release_interface(&btusb_driver, data->intf);
4643 usb_driver_release_interface(&btusb_driver, data->isoc);
4646 if (data->oob_wake_irq)
4647 device_init_wakeup(&data->udev->dev, false);
4649 if (data->reset_gpio)
4650 gpiod_put(data->reset_gpio);
4656 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
4658 struct btusb_data *data = usb_get_intfdata(intf);
4660 BT_DBG("intf %p", intf);
4662 if (data->suspend_count++)
4665 spin_lock_irq(&data->txlock);
4666 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
4667 set_bit(BTUSB_SUSPENDING, &data->flags);
4668 spin_unlock_irq(&data->txlock);
4670 spin_unlock_irq(&data->txlock);
4671 data->suspend_count--;
4675 cancel_work_sync(&data->work);
4677 btusb_stop_traffic(data);
4678 usb_kill_anchored_urbs(&data->tx_anchor);
4680 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) {
4681 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
4682 enable_irq_wake(data->oob_wake_irq);
4683 enable_irq(data->oob_wake_irq);
4686 /* For global suspend, Realtek devices lose the loaded fw
4687 * in them. But for autosuspend, firmware should remain.
4688 * Actually, it depends on whether the usb host sends
4689 * set feature (enable wakeup) or not.
4691 if (test_bit(BTUSB_WAKEUP_DISABLE, &data->flags)) {
4692 if (PMSG_IS_AUTO(message) &&
4693 device_can_wakeup(&data->udev->dev))
4694 data->udev->do_remote_wakeup = 1;
4695 else if (!PMSG_IS_AUTO(message))
4696 data->udev->reset_resume = 1;
4702 static void play_deferred(struct btusb_data *data)
4707 while ((urb = usb_get_from_anchor(&data->deferred))) {
4708 usb_anchor_urb(urb, &data->tx_anchor);
4710 err = usb_submit_urb(urb, GFP_ATOMIC);
4712 if (err != -EPERM && err != -ENODEV)
4713 BT_ERR("%s urb %p submission failed (%d)",
4714 data->hdev->name, urb, -err);
4715 kfree(urb->setup_packet);
4716 usb_unanchor_urb(urb);
4721 data->tx_in_flight++;
4725 /* Cleanup the rest deferred urbs. */
4726 while ((urb = usb_get_from_anchor(&data->deferred))) {
4727 kfree(urb->setup_packet);
4732 static int btusb_resume(struct usb_interface *intf)
4734 struct btusb_data *data = usb_get_intfdata(intf);
4735 struct hci_dev *hdev = data->hdev;
4738 BT_DBG("intf %p", intf);
4740 if (--data->suspend_count)
4743 /* Disable only if not already disabled (keep it balanced) */
4744 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
4745 disable_irq(data->oob_wake_irq);
4746 disable_irq_wake(data->oob_wake_irq);
4749 if (!test_bit(HCI_RUNNING, &hdev->flags))
4752 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
4753 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
4755 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
4760 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
4761 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
4763 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
4767 btusb_submit_bulk_urb(hdev, GFP_NOIO);
4770 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
4771 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
4772 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
4774 btusb_submit_isoc_urb(hdev, GFP_NOIO);
4777 spin_lock_irq(&data->txlock);
4778 play_deferred(data);
4779 clear_bit(BTUSB_SUSPENDING, &data->flags);
4780 spin_unlock_irq(&data->txlock);
4781 schedule_work(&data->work);
4786 usb_scuttle_anchored_urbs(&data->deferred);
4788 spin_lock_irq(&data->txlock);
4789 clear_bit(BTUSB_SUSPENDING, &data->flags);
4790 spin_unlock_irq(&data->txlock);
4796 static struct usb_driver btusb_driver = {
4798 .probe = btusb_probe,
4799 .disconnect = btusb_disconnect,
4801 .suspend = btusb_suspend,
4802 .resume = btusb_resume,
4804 .id_table = btusb_table,
4805 .supports_autosuspend = 1,
4806 .disable_hub_initiated_lpm = 1,
4809 module_usb_driver(btusb_driver);
4811 module_param(disable_scofix, bool, 0644);
4812 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
4814 module_param(force_scofix, bool, 0644);
4815 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
4817 module_param(enable_autosuspend, bool, 0644);
4818 MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default");
4820 module_param(reset, bool, 0644);
4821 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
4823 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
4824 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
4825 MODULE_VERSION(VERSION);
4826 MODULE_LICENSE("GPL");