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
61 static const struct usb_device_id btusb_table[] = {
62 /* Generic Bluetooth USB device */
63 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
65 /* Generic Bluetooth AMP device */
66 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP },
68 /* Generic Bluetooth USB interface */
69 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) },
71 /* Apple-specific (Broadcom) devices */
72 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01),
73 .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 },
75 /* MediaTek MT76x0E */
76 { USB_DEVICE(0x0e8d, 0x763f) },
78 /* Broadcom SoftSailing reporting vendor specific */
79 { USB_DEVICE(0x0a5c, 0x21e1) },
81 /* Apple MacBookPro 7,1 */
82 { USB_DEVICE(0x05ac, 0x8213) },
85 { USB_DEVICE(0x05ac, 0x8215) },
87 /* Apple MacBookPro6,2 */
88 { USB_DEVICE(0x05ac, 0x8218) },
90 /* Apple MacBookAir3,1, MacBookAir3,2 */
91 { USB_DEVICE(0x05ac, 0x821b) },
93 /* Apple MacBookAir4,1 */
94 { USB_DEVICE(0x05ac, 0x821f) },
96 /* Apple MacBookPro8,2 */
97 { USB_DEVICE(0x05ac, 0x821a) },
99 /* Apple MacMini5,1 */
100 { USB_DEVICE(0x05ac, 0x8281) },
102 /* AVM BlueFRITZ! USB v2.0 */
103 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE },
105 /* Bluetooth Ultraport Module from IBM */
106 { USB_DEVICE(0x04bf, 0x030a) },
108 /* ALPS Modules with non-standard id */
109 { USB_DEVICE(0x044e, 0x3001) },
110 { USB_DEVICE(0x044e, 0x3002) },
112 /* Ericsson with non-standard id */
113 { USB_DEVICE(0x0bdb, 0x1002) },
115 /* Canyon CN-BTU1 with HID interfaces */
116 { USB_DEVICE(0x0c10, 0x0000) },
118 /* Broadcom BCM20702A0 */
119 { USB_DEVICE(0x413c, 0x8197) },
121 /* Broadcom BCM20702B0 (Dynex/Insignia) */
122 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM },
124 /* Broadcom BCM43142A0 (Foxconn/Lenovo) */
125 { USB_VENDOR_AND_INTERFACE_INFO(0x105b, 0xff, 0x01, 0x01),
126 .driver_info = BTUSB_BCM_PATCHRAM },
128 /* Broadcom BCM920703 (HTC Vive) */
129 { USB_VENDOR_AND_INTERFACE_INFO(0x0bb4, 0xff, 0x01, 0x01),
130 .driver_info = BTUSB_BCM_PATCHRAM },
132 /* Foxconn - Hon Hai */
133 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01),
134 .driver_info = BTUSB_BCM_PATCHRAM },
136 /* Lite-On Technology - Broadcom based */
137 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01),
138 .driver_info = BTUSB_BCM_PATCHRAM },
140 /* Broadcom devices with vendor specific id */
141 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01),
142 .driver_info = BTUSB_BCM_PATCHRAM },
144 /* ASUSTek Computer - Broadcom based */
145 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01),
146 .driver_info = BTUSB_BCM_PATCHRAM },
148 /* Belkin F8065bf - Broadcom based */
149 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01),
150 .driver_info = BTUSB_BCM_PATCHRAM },
152 /* IMC Networks - Broadcom based */
153 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01),
154 .driver_info = BTUSB_BCM_PATCHRAM },
156 /* Dell Computer - Broadcom based */
157 { USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01),
158 .driver_info = BTUSB_BCM_PATCHRAM },
160 /* Toshiba Corp - Broadcom based */
161 { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01),
162 .driver_info = BTUSB_BCM_PATCHRAM },
164 /* Intel Bluetooth USB Bootloader (RAM module) */
165 { USB_DEVICE(0x8087, 0x0a5a),
166 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
168 { } /* Terminating entry */
171 MODULE_DEVICE_TABLE(usb, btusb_table);
173 static const struct usb_device_id blacklist_table[] = {
174 /* CSR BlueCore devices */
175 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
177 /* Broadcom BCM2033 without firmware */
178 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
180 /* Broadcom BCM2045 devices */
181 { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 },
183 /* Atheros 3011 with sflash firmware */
184 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
185 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
186 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE },
187 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
188 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
189 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
190 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
192 /* Atheros AR9285 Malbec with sflash firmware */
193 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
195 /* Atheros 3012 with sflash firmware */
196 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
197 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
198 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
199 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
200 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
201 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
202 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
203 { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 },
204 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
205 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
206 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
207 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
208 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
209 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
210 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
211 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
212 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
213 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
214 { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 },
215 { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 },
216 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
217 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
218 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
219 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
220 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
221 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
222 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
223 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
224 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
225 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
226 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
227 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
228 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
229 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 },
230 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
231 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
232 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
233 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
234 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
235 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
236 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
237 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 },
238 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
239 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
240 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
241 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
242 { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 },
243 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
244 { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 },
245 { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 },
247 /* Atheros AR5BBU12 with sflash firmware */
248 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
250 /* Atheros AR5BBU12 with sflash firmware */
251 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
252 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
254 /* QCA ROME chipset */
255 { USB_DEVICE(0x0cf3, 0x535b), .driver_info = BTUSB_QCA_ROME },
256 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME },
257 { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME },
258 { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME },
259 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME },
260 { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME },
261 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME },
262 { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME },
263 { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME },
264 { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME },
265 { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME },
266 { USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME },
267 { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME },
268 { USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME },
269 { USB_DEVICE(0x04ca, 0x3021), .driver_info = BTUSB_QCA_ROME },
270 { USB_DEVICE(0x13d3, 0x3491), .driver_info = BTUSB_QCA_ROME },
271 { USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME },
272 { USB_DEVICE(0x13d3, 0x3501), .driver_info = BTUSB_QCA_ROME },
274 /* Broadcom BCM2035 */
275 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
276 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
277 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
279 /* Broadcom BCM2045 */
280 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
281 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
283 /* IBM/Lenovo ThinkPad with Broadcom chip */
284 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
285 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
287 /* HP laptop with Broadcom chip */
288 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
290 /* Dell laptop with Broadcom chip */
291 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
293 /* Dell Wireless 370 and 410 devices */
294 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
295 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
297 /* Belkin F8T012 and F8T013 devices */
298 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
299 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
301 /* Asus WL-BTD202 device */
302 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
304 /* Kensington Bluetooth USB adapter */
305 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
307 /* RTX Telecom based adapters with buggy SCO support */
308 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
309 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
311 /* CONWISE Technology based adapters with buggy SCO support */
312 { USB_DEVICE(0x0e5e, 0x6622),
313 .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622},
315 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
316 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE },
318 /* Digianswer devices */
319 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
320 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
322 /* CSR BlueCore Bluetooth Sniffer */
323 { USB_DEVICE(0x0a12, 0x0002),
324 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
326 /* Frontline ComProbe Bluetooth Sniffer */
327 { USB_DEVICE(0x16d3, 0x0002),
328 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
330 /* Marvell Bluetooth devices */
331 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
332 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
333 { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL },
335 /* Intel Bluetooth devices */
336 { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_NEW },
337 { USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_NEW },
338 { USB_DEVICE(0x8087, 0x0029), .driver_info = BTUSB_INTEL_NEW },
339 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
340 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
341 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL },
342 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_NEW },
343 { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL },
344 { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_NEW },
346 /* Other Intel Bluetooth devices */
347 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
348 .driver_info = BTUSB_IGNORE },
350 /* Realtek Bluetooth devices */
351 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
352 .driver_info = BTUSB_REALTEK },
354 /* MediaTek Bluetooth devices */
355 { USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01),
356 .driver_info = BTUSB_MEDIATEK },
358 /* Additional Realtek 8723AE Bluetooth devices */
359 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
360 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
362 /* Additional Realtek 8723BE Bluetooth devices */
363 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
364 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
365 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
366 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
367 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
368 { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK },
370 /* Additional Realtek 8723BU Bluetooth devices */
371 { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK },
373 /* Additional Realtek 8723DE Bluetooth devices */
374 { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK },
375 { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK },
377 /* Additional Realtek 8821AE Bluetooth devices */
378 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
379 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
380 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
381 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
382 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
384 /* Additional Realtek 8822BE Bluetooth devices */
385 { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK },
386 { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK },
388 /* Additional Realtek 8822CE Bluetooth devices */
389 { USB_DEVICE(0x04ca, 0x4005), .driver_info = BTUSB_REALTEK },
391 /* Silicon Wave based devices */
392 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE },
394 { } /* Terminating entry */
397 /* The Bluetooth USB module build into some devices needs to be reset on resume,
398 * this is a problem with the platform (likely shutting off all power) not with
399 * the module itself. So we use a DMI list to match known broken platforms.
401 static const struct dmi_system_id btusb_needs_reset_resume_table[] = {
403 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */
405 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
406 DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"),
410 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */
412 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
413 DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"),
417 /* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */
419 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
420 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"),
426 #define BTUSB_MAX_ISOC_FRAMES 10
428 #define BTUSB_INTR_RUNNING 0
429 #define BTUSB_BULK_RUNNING 1
430 #define BTUSB_ISOC_RUNNING 2
431 #define BTUSB_SUSPENDING 3
432 #define BTUSB_DID_ISO_RESUME 4
433 #define BTUSB_BOOTLOADER 5
434 #define BTUSB_DOWNLOADING 6
435 #define BTUSB_FIRMWARE_LOADED 7
436 #define BTUSB_FIRMWARE_FAILED 8
437 #define BTUSB_BOOTING 9
438 #define BTUSB_DIAG_RUNNING 10
439 #define BTUSB_OOB_WAKE_ENABLED 11
440 #define BTUSB_HW_RESET_ACTIVE 12
441 #define BTUSB_TX_WAIT_VND_EVT 13
442 #define BTUSB_WAKEUP_DISABLE 14
445 struct hci_dev *hdev;
446 struct usb_device *udev;
447 struct usb_interface *intf;
448 struct usb_interface *isoc;
449 struct usb_interface *diag;
454 struct work_struct work;
455 struct work_struct waker;
457 struct usb_anchor deferred;
458 struct usb_anchor tx_anchor;
462 struct usb_anchor intr_anchor;
463 struct usb_anchor bulk_anchor;
464 struct usb_anchor isoc_anchor;
465 struct usb_anchor diag_anchor;
466 struct usb_anchor ctrl_anchor;
469 struct sk_buff *evt_skb;
470 struct sk_buff *acl_skb;
471 struct sk_buff *sco_skb;
473 struct usb_endpoint_descriptor *intr_ep;
474 struct usb_endpoint_descriptor *bulk_tx_ep;
475 struct usb_endpoint_descriptor *bulk_rx_ep;
476 struct usb_endpoint_descriptor *isoc_tx_ep;
477 struct usb_endpoint_descriptor *isoc_rx_ep;
478 struct usb_endpoint_descriptor *diag_tx_ep;
479 struct usb_endpoint_descriptor *diag_rx_ep;
481 struct gpio_desc *reset_gpio;
486 unsigned int sco_num;
490 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
491 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
493 int (*setup_on_usb)(struct hci_dev *hdev);
495 int oob_wake_irq; /* irq for out-of-band wake-on-bt */
496 unsigned cmd_timeout_cnt;
500 static void btusb_intel_cmd_timeout(struct hci_dev *hdev)
502 struct btusb_data *data = hci_get_drvdata(hdev);
503 struct gpio_desc *reset_gpio = data->reset_gpio;
505 if (++data->cmd_timeout_cnt < 5)
509 bt_dev_err(hdev, "No way to reset. Ignoring and continuing");
514 * Toggle the hard reset line if the platform provides one. The reset
515 * is going to yank the device off the USB and then replug. So doing
516 * once is enough. The cleanup is handled correctly on the way out
517 * (standard USB disconnect), and the new device is detected cleanly
518 * and bound to the driver again like it should be.
520 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
521 bt_dev_err(hdev, "last reset failed? Not resetting again");
525 bt_dev_err(hdev, "Initiating HW reset via gpio");
526 gpiod_set_value_cansleep(reset_gpio, 1);
528 gpiod_set_value_cansleep(reset_gpio, 0);
531 static void btusb_rtl_cmd_timeout(struct hci_dev *hdev)
533 struct btusb_data *data = hci_get_drvdata(hdev);
534 struct gpio_desc *reset_gpio = data->reset_gpio;
536 if (++data->cmd_timeout_cnt < 5)
540 bt_dev_err(hdev, "No gpio to reset Realtek device, ignoring");
544 /* Toggle the hard reset line. The Realtek device is going to
545 * yank itself off the USB and then replug. The cleanup is handled
546 * correctly on the way out (standard USB disconnect), and the new
547 * device is detected cleanly and bound to the driver again like
550 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
551 bt_dev_err(hdev, "last reset failed? Not resetting again");
555 bt_dev_err(hdev, "Reset Realtek device via gpio");
556 gpiod_set_value_cansleep(reset_gpio, 1);
558 gpiod_set_value_cansleep(reset_gpio, 0);
561 static inline void btusb_free_frags(struct btusb_data *data)
565 spin_lock_irqsave(&data->rxlock, flags);
567 kfree_skb(data->evt_skb);
568 data->evt_skb = NULL;
570 kfree_skb(data->acl_skb);
571 data->acl_skb = NULL;
573 kfree_skb(data->sco_skb);
574 data->sco_skb = NULL;
576 spin_unlock_irqrestore(&data->rxlock, flags);
579 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
585 spin_lock_irqsave(&data->rxlock, flags);
592 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
598 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
599 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE;
602 len = min_t(uint, hci_skb_expect(skb), count);
603 skb_put_data(skb, buffer, len);
607 hci_skb_expect(skb) -= len;
609 if (skb->len == HCI_EVENT_HDR_SIZE) {
610 /* Complete event header */
611 hci_skb_expect(skb) = hci_event_hdr(skb)->plen;
613 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
622 if (!hci_skb_expect(skb)) {
624 data->recv_event(data->hdev, skb);
630 spin_unlock_irqrestore(&data->rxlock, flags);
635 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
641 spin_lock_irqsave(&data->rxlock, flags);
648 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
654 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT;
655 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE;
658 len = min_t(uint, hci_skb_expect(skb), count);
659 skb_put_data(skb, buffer, len);
663 hci_skb_expect(skb) -= len;
665 if (skb->len == HCI_ACL_HDR_SIZE) {
666 __le16 dlen = hci_acl_hdr(skb)->dlen;
668 /* Complete ACL header */
669 hci_skb_expect(skb) = __le16_to_cpu(dlen);
671 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
680 if (!hci_skb_expect(skb)) {
682 hci_recv_frame(data->hdev, skb);
688 spin_unlock_irqrestore(&data->rxlock, flags);
693 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
699 spin_lock_irqsave(&data->rxlock, flags);
706 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
712 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT;
713 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE;
716 len = min_t(uint, hci_skb_expect(skb), count);
717 skb_put_data(skb, buffer, len);
721 hci_skb_expect(skb) -= len;
723 if (skb->len == HCI_SCO_HDR_SIZE) {
724 /* Complete SCO header */
725 hci_skb_expect(skb) = hci_sco_hdr(skb)->dlen;
727 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
736 if (!hci_skb_expect(skb)) {
738 hci_recv_frame(data->hdev, skb);
744 spin_unlock_irqrestore(&data->rxlock, flags);
749 static void btusb_intr_complete(struct urb *urb)
751 struct hci_dev *hdev = urb->context;
752 struct btusb_data *data = hci_get_drvdata(hdev);
755 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
758 if (!test_bit(HCI_RUNNING, &hdev->flags))
761 if (urb->status == 0) {
762 hdev->stat.byte_rx += urb->actual_length;
764 if (btusb_recv_intr(data, urb->transfer_buffer,
765 urb->actual_length) < 0) {
766 bt_dev_err(hdev, "corrupted event packet");
769 } else if (urb->status == -ENOENT) {
770 /* Avoid suspend failed when usb_kill_urb */
774 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
777 usb_mark_last_busy(data->udev);
778 usb_anchor_urb(urb, &data->intr_anchor);
780 err = usb_submit_urb(urb, GFP_ATOMIC);
782 /* -EPERM: urb is being killed;
783 * -ENODEV: device got disconnected
785 if (err != -EPERM && err != -ENODEV)
786 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
788 usb_unanchor_urb(urb);
792 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
794 struct btusb_data *data = hci_get_drvdata(hdev);
800 BT_DBG("%s", hdev->name);
805 urb = usb_alloc_urb(0, mem_flags);
809 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
811 buf = kmalloc(size, mem_flags);
817 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
819 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
820 btusb_intr_complete, hdev, data->intr_ep->bInterval);
822 urb->transfer_flags |= URB_FREE_BUFFER;
824 usb_anchor_urb(urb, &data->intr_anchor);
826 err = usb_submit_urb(urb, mem_flags);
828 if (err != -EPERM && err != -ENODEV)
829 bt_dev_err(hdev, "urb %p submission failed (%d)",
831 usb_unanchor_urb(urb);
839 static void btusb_bulk_complete(struct urb *urb)
841 struct hci_dev *hdev = urb->context;
842 struct btusb_data *data = hci_get_drvdata(hdev);
845 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
848 if (!test_bit(HCI_RUNNING, &hdev->flags))
851 if (urb->status == 0) {
852 hdev->stat.byte_rx += urb->actual_length;
854 if (data->recv_bulk(data, urb->transfer_buffer,
855 urb->actual_length) < 0) {
856 bt_dev_err(hdev, "corrupted ACL packet");
859 } else if (urb->status == -ENOENT) {
860 /* Avoid suspend failed when usb_kill_urb */
864 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
867 usb_anchor_urb(urb, &data->bulk_anchor);
868 usb_mark_last_busy(data->udev);
870 err = usb_submit_urb(urb, GFP_ATOMIC);
872 /* -EPERM: urb is being killed;
873 * -ENODEV: device got disconnected
875 if (err != -EPERM && err != -ENODEV)
876 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
878 usb_unanchor_urb(urb);
882 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
884 struct btusb_data *data = hci_get_drvdata(hdev);
888 int err, size = HCI_MAX_FRAME_SIZE;
890 BT_DBG("%s", hdev->name);
892 if (!data->bulk_rx_ep)
895 urb = usb_alloc_urb(0, mem_flags);
899 buf = kmalloc(size, mem_flags);
905 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
907 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
908 btusb_bulk_complete, hdev);
910 urb->transfer_flags |= URB_FREE_BUFFER;
912 usb_mark_last_busy(data->udev);
913 usb_anchor_urb(urb, &data->bulk_anchor);
915 err = usb_submit_urb(urb, mem_flags);
917 if (err != -EPERM && err != -ENODEV)
918 bt_dev_err(hdev, "urb %p submission failed (%d)",
920 usb_unanchor_urb(urb);
928 static void btusb_isoc_complete(struct urb *urb)
930 struct hci_dev *hdev = urb->context;
931 struct btusb_data *data = hci_get_drvdata(hdev);
934 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
937 if (!test_bit(HCI_RUNNING, &hdev->flags))
940 if (urb->status == 0) {
941 for (i = 0; i < urb->number_of_packets; i++) {
942 unsigned int offset = urb->iso_frame_desc[i].offset;
943 unsigned int length = urb->iso_frame_desc[i].actual_length;
945 if (urb->iso_frame_desc[i].status)
948 hdev->stat.byte_rx += length;
950 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
952 bt_dev_err(hdev, "corrupted SCO packet");
956 } else if (urb->status == -ENOENT) {
957 /* Avoid suspend failed when usb_kill_urb */
961 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
964 usb_anchor_urb(urb, &data->isoc_anchor);
966 err = usb_submit_urb(urb, GFP_ATOMIC);
968 /* -EPERM: urb is being killed;
969 * -ENODEV: device got disconnected
971 if (err != -EPERM && err != -ENODEV)
972 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
974 usb_unanchor_urb(urb);
978 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
982 BT_DBG("len %d mtu %d", len, mtu);
984 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
985 i++, offset += mtu, len -= mtu) {
986 urb->iso_frame_desc[i].offset = offset;
987 urb->iso_frame_desc[i].length = mtu;
990 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
991 urb->iso_frame_desc[i].offset = offset;
992 urb->iso_frame_desc[i].length = len;
996 urb->number_of_packets = i;
999 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
1001 struct btusb_data *data = hci_get_drvdata(hdev);
1007 BT_DBG("%s", hdev->name);
1009 if (!data->isoc_rx_ep)
1012 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
1016 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
1017 BTUSB_MAX_ISOC_FRAMES;
1019 buf = kmalloc(size, mem_flags);
1025 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
1027 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
1028 hdev, data->isoc_rx_ep->bInterval);
1030 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
1032 __fill_isoc_descriptor(urb, size,
1033 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
1035 usb_anchor_urb(urb, &data->isoc_anchor);
1037 err = usb_submit_urb(urb, mem_flags);
1039 if (err != -EPERM && err != -ENODEV)
1040 bt_dev_err(hdev, "urb %p submission failed (%d)",
1042 usb_unanchor_urb(urb);
1050 static void btusb_diag_complete(struct urb *urb)
1052 struct hci_dev *hdev = urb->context;
1053 struct btusb_data *data = hci_get_drvdata(hdev);
1056 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1057 urb->actual_length);
1059 if (urb->status == 0) {
1060 struct sk_buff *skb;
1062 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC);
1064 skb_put_data(skb, urb->transfer_buffer,
1065 urb->actual_length);
1066 hci_recv_diag(hdev, skb);
1068 } else if (urb->status == -ENOENT) {
1069 /* Avoid suspend failed when usb_kill_urb */
1073 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags))
1076 usb_anchor_urb(urb, &data->diag_anchor);
1077 usb_mark_last_busy(data->udev);
1079 err = usb_submit_urb(urb, GFP_ATOMIC);
1081 /* -EPERM: urb is being killed;
1082 * -ENODEV: device got disconnected
1084 if (err != -EPERM && err != -ENODEV)
1085 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1087 usb_unanchor_urb(urb);
1091 static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags)
1093 struct btusb_data *data = hci_get_drvdata(hdev);
1097 int err, size = HCI_MAX_FRAME_SIZE;
1099 BT_DBG("%s", hdev->name);
1101 if (!data->diag_rx_ep)
1104 urb = usb_alloc_urb(0, mem_flags);
1108 buf = kmalloc(size, mem_flags);
1114 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress);
1116 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1117 btusb_diag_complete, hdev);
1119 urb->transfer_flags |= URB_FREE_BUFFER;
1121 usb_mark_last_busy(data->udev);
1122 usb_anchor_urb(urb, &data->diag_anchor);
1124 err = usb_submit_urb(urb, mem_flags);
1126 if (err != -EPERM && err != -ENODEV)
1127 bt_dev_err(hdev, "urb %p submission failed (%d)",
1129 usb_unanchor_urb(urb);
1137 static void btusb_tx_complete(struct urb *urb)
1139 struct sk_buff *skb = urb->context;
1140 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1141 struct btusb_data *data = hci_get_drvdata(hdev);
1142 unsigned long flags;
1144 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1145 urb->actual_length);
1147 if (!test_bit(HCI_RUNNING, &hdev->flags))
1151 hdev->stat.byte_tx += urb->transfer_buffer_length;
1153 hdev->stat.err_tx++;
1156 spin_lock_irqsave(&data->txlock, flags);
1157 data->tx_in_flight--;
1158 spin_unlock_irqrestore(&data->txlock, flags);
1160 kfree(urb->setup_packet);
1165 static void btusb_isoc_tx_complete(struct urb *urb)
1167 struct sk_buff *skb = urb->context;
1168 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1170 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1171 urb->actual_length);
1173 if (!test_bit(HCI_RUNNING, &hdev->flags))
1177 hdev->stat.byte_tx += urb->transfer_buffer_length;
1179 hdev->stat.err_tx++;
1182 kfree(urb->setup_packet);
1187 static int btusb_open(struct hci_dev *hdev)
1189 struct btusb_data *data = hci_get_drvdata(hdev);
1192 BT_DBG("%s", hdev->name);
1194 err = usb_autopm_get_interface(data->intf);
1198 /* Patching USB firmware files prior to starting any URBs of HCI path
1199 * It is more safe to use USB bulk channel for downloading USB patch
1201 if (data->setup_on_usb) {
1202 err = data->setup_on_usb(hdev);
1207 data->intf->needs_remote_wakeup = 1;
1209 /* Disable device remote wakeup when host is suspended
1210 * For Realtek chips, global suspend without
1211 * SET_FEATURE (DEVICE_REMOTE_WAKEUP) can save more power in device.
1213 if (test_bit(BTUSB_WAKEUP_DISABLE, &data->flags))
1214 device_wakeup_disable(&data->udev->dev);
1216 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
1219 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
1223 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1225 usb_kill_anchored_urbs(&data->intr_anchor);
1229 set_bit(BTUSB_BULK_RUNNING, &data->flags);
1230 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1233 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL))
1234 set_bit(BTUSB_DIAG_RUNNING, &data->flags);
1238 usb_autopm_put_interface(data->intf);
1242 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1244 usb_autopm_put_interface(data->intf);
1248 static void btusb_stop_traffic(struct btusb_data *data)
1250 usb_kill_anchored_urbs(&data->intr_anchor);
1251 usb_kill_anchored_urbs(&data->bulk_anchor);
1252 usb_kill_anchored_urbs(&data->isoc_anchor);
1253 usb_kill_anchored_urbs(&data->diag_anchor);
1254 usb_kill_anchored_urbs(&data->ctrl_anchor);
1257 static int btusb_close(struct hci_dev *hdev)
1259 struct btusb_data *data = hci_get_drvdata(hdev);
1262 BT_DBG("%s", hdev->name);
1264 cancel_work_sync(&data->work);
1265 cancel_work_sync(&data->waker);
1267 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1268 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1269 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1270 clear_bit(BTUSB_DIAG_RUNNING, &data->flags);
1272 btusb_stop_traffic(data);
1273 btusb_free_frags(data);
1275 err = usb_autopm_get_interface(data->intf);
1279 data->intf->needs_remote_wakeup = 0;
1281 /* Enable remote wake up for auto-suspend */
1282 if (test_bit(BTUSB_WAKEUP_DISABLE, &data->flags))
1283 data->intf->needs_remote_wakeup = 1;
1285 usb_autopm_put_interface(data->intf);
1288 usb_scuttle_anchored_urbs(&data->deferred);
1292 static int btusb_flush(struct hci_dev *hdev)
1294 struct btusb_data *data = hci_get_drvdata(hdev);
1296 BT_DBG("%s", hdev->name);
1298 usb_kill_anchored_urbs(&data->tx_anchor);
1299 btusb_free_frags(data);
1304 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
1306 struct btusb_data *data = hci_get_drvdata(hdev);
1307 struct usb_ctrlrequest *dr;
1311 urb = usb_alloc_urb(0, GFP_KERNEL);
1313 return ERR_PTR(-ENOMEM);
1315 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
1318 return ERR_PTR(-ENOMEM);
1321 dr->bRequestType = data->cmdreq_type;
1322 dr->bRequest = data->cmdreq;
1325 dr->wLength = __cpu_to_le16(skb->len);
1327 pipe = usb_sndctrlpipe(data->udev, 0x00);
1329 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
1330 skb->data, skb->len, btusb_tx_complete, skb);
1332 skb->dev = (void *)hdev;
1337 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
1339 struct btusb_data *data = hci_get_drvdata(hdev);
1343 if (!data->bulk_tx_ep)
1344 return ERR_PTR(-ENODEV);
1346 urb = usb_alloc_urb(0, GFP_KERNEL);
1348 return ERR_PTR(-ENOMEM);
1350 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
1352 usb_fill_bulk_urb(urb, data->udev, pipe,
1353 skb->data, skb->len, btusb_tx_complete, skb);
1355 skb->dev = (void *)hdev;
1360 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
1362 struct btusb_data *data = hci_get_drvdata(hdev);
1366 if (!data->isoc_tx_ep)
1367 return ERR_PTR(-ENODEV);
1369 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
1371 return ERR_PTR(-ENOMEM);
1373 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
1375 usb_fill_int_urb(urb, data->udev, pipe,
1376 skb->data, skb->len, btusb_isoc_tx_complete,
1377 skb, data->isoc_tx_ep->bInterval);
1379 urb->transfer_flags = URB_ISO_ASAP;
1381 __fill_isoc_descriptor(urb, skb->len,
1382 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
1384 skb->dev = (void *)hdev;
1389 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
1391 struct btusb_data *data = hci_get_drvdata(hdev);
1394 usb_anchor_urb(urb, &data->tx_anchor);
1396 err = usb_submit_urb(urb, GFP_KERNEL);
1398 if (err != -EPERM && err != -ENODEV)
1399 bt_dev_err(hdev, "urb %p submission failed (%d)",
1401 kfree(urb->setup_packet);
1402 usb_unanchor_urb(urb);
1404 usb_mark_last_busy(data->udev);
1411 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
1413 struct btusb_data *data = hci_get_drvdata(hdev);
1414 unsigned long flags;
1417 spin_lock_irqsave(&data->txlock, flags);
1418 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
1420 data->tx_in_flight++;
1421 spin_unlock_irqrestore(&data->txlock, flags);
1424 return submit_tx_urb(hdev, urb);
1426 usb_anchor_urb(urb, &data->deferred);
1427 schedule_work(&data->waker);
1433 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
1437 BT_DBG("%s", hdev->name);
1439 switch (hci_skb_pkt_type(skb)) {
1440 case HCI_COMMAND_PKT:
1441 urb = alloc_ctrl_urb(hdev, skb);
1443 return PTR_ERR(urb);
1445 hdev->stat.cmd_tx++;
1446 return submit_or_queue_tx_urb(hdev, urb);
1448 case HCI_ACLDATA_PKT:
1449 urb = alloc_bulk_urb(hdev, skb);
1451 return PTR_ERR(urb);
1453 hdev->stat.acl_tx++;
1454 return submit_or_queue_tx_urb(hdev, urb);
1456 case HCI_SCODATA_PKT:
1457 if (hci_conn_num(hdev, SCO_LINK) < 1)
1460 urb = alloc_isoc_urb(hdev, skb);
1462 return PTR_ERR(urb);
1464 hdev->stat.sco_tx++;
1465 return submit_tx_urb(hdev, urb);
1471 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
1473 struct btusb_data *data = hci_get_drvdata(hdev);
1475 BT_DBG("%s evt %d", hdev->name, evt);
1477 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
1478 data->sco_num = hci_conn_num(hdev, SCO_LINK);
1479 schedule_work(&data->work);
1483 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
1485 struct btusb_data *data = hci_get_drvdata(hdev);
1486 struct usb_interface *intf = data->isoc;
1487 struct usb_endpoint_descriptor *ep_desc;
1493 err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting);
1495 bt_dev_err(hdev, "setting interface failed (%d)", -err);
1499 data->isoc_altsetting = altsetting;
1501 data->isoc_tx_ep = NULL;
1502 data->isoc_rx_ep = NULL;
1504 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1505 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1507 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
1508 data->isoc_tx_ep = ep_desc;
1512 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
1513 data->isoc_rx_ep = ep_desc;
1518 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
1519 bt_dev_err(hdev, "invalid SCO descriptors");
1526 static void btusb_work(struct work_struct *work)
1528 struct btusb_data *data = container_of(work, struct btusb_data, work);
1529 struct hci_dev *hdev = data->hdev;
1533 if (data->sco_num > 0) {
1534 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
1535 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
1537 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1538 usb_kill_anchored_urbs(&data->isoc_anchor);
1542 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
1545 if (hdev->voice_setting & 0x0020) {
1546 static const int alts[3] = { 2, 4, 5 };
1548 new_alts = alts[data->sco_num - 1];
1550 new_alts = data->sco_num;
1553 if (data->isoc_altsetting != new_alts) {
1554 unsigned long flags;
1556 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1557 usb_kill_anchored_urbs(&data->isoc_anchor);
1559 /* When isochronous alternate setting needs to be
1560 * changed, because SCO connection has been added
1561 * or removed, a packet fragment may be left in the
1562 * reassembling state. This could lead to wrongly
1563 * assembled fragments.
1565 * Clear outstanding fragment when selecting a new
1566 * alternate setting.
1568 spin_lock_irqsave(&data->rxlock, flags);
1569 kfree_skb(data->sco_skb);
1570 data->sco_skb = NULL;
1571 spin_unlock_irqrestore(&data->rxlock, flags);
1573 if (__set_isoc_interface(hdev, new_alts) < 0)
1577 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1578 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
1579 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1581 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
1584 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1585 usb_kill_anchored_urbs(&data->isoc_anchor);
1587 __set_isoc_interface(hdev, 0);
1588 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
1589 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
1593 static void btusb_waker(struct work_struct *work)
1595 struct btusb_data *data = container_of(work, struct btusb_data, waker);
1598 err = usb_autopm_get_interface(data->intf);
1602 usb_autopm_put_interface(data->intf);
1605 static int btusb_setup_bcm92035(struct hci_dev *hdev)
1607 struct sk_buff *skb;
1610 BT_DBG("%s", hdev->name);
1612 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
1614 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb));
1621 static int btusb_setup_csr(struct hci_dev *hdev)
1623 struct hci_rp_read_local_version *rp;
1624 struct sk_buff *skb;
1626 BT_DBG("%s", hdev->name);
1628 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1631 int err = PTR_ERR(skb);
1632 bt_dev_err(hdev, "CSR: Local version failed (%d)", err);
1636 if (skb->len != sizeof(struct hci_rp_read_local_version)) {
1637 bt_dev_err(hdev, "CSR: Local version length mismatch");
1642 rp = (struct hci_rp_read_local_version *)skb->data;
1644 /* Detect controllers which aren't real CSR ones. */
1645 if (le16_to_cpu(rp->manufacturer) != 10 ||
1646 le16_to_cpu(rp->lmp_subver) == 0x0c5c) {
1647 /* Clear the reset quirk since this is not an actual
1648 * early Bluetooth 1.1 device from CSR.
1650 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1652 /* These fake CSR controllers have all a broken
1653 * stored link key handling and so just disable it.
1655 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
1663 static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev,
1664 struct intel_version *ver)
1666 const struct firmware *fw;
1670 snprintf(fwname, sizeof(fwname),
1671 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq",
1672 ver->hw_platform, ver->hw_variant, ver->hw_revision,
1673 ver->fw_variant, ver->fw_revision, ver->fw_build_num,
1674 ver->fw_build_ww, ver->fw_build_yy);
1676 ret = request_firmware(&fw, fwname, &hdev->dev);
1678 if (ret == -EINVAL) {
1679 bt_dev_err(hdev, "Intel firmware file request failed (%d)",
1684 bt_dev_err(hdev, "failed to open Intel firmware file: %s (%d)",
1687 /* If the correct firmware patch file is not found, use the
1688 * default firmware patch file instead
1690 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq",
1691 ver->hw_platform, ver->hw_variant);
1692 if (request_firmware(&fw, fwname, &hdev->dev) < 0) {
1693 bt_dev_err(hdev, "failed to open default fw file: %s",
1699 bt_dev_info(hdev, "Intel Bluetooth firmware file: %s", fwname);
1704 static int btusb_setup_intel_patching(struct hci_dev *hdev,
1705 const struct firmware *fw,
1706 const u8 **fw_ptr, int *disable_patch)
1708 struct sk_buff *skb;
1709 struct hci_command_hdr *cmd;
1710 const u8 *cmd_param;
1711 struct hci_event_hdr *evt = NULL;
1712 const u8 *evt_param = NULL;
1713 int remain = fw->size - (*fw_ptr - fw->data);
1715 /* The first byte indicates the types of the patch command or event.
1716 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes
1717 * in the current firmware buffer doesn't start with 0x01 or
1718 * the size of remain buffer is smaller than HCI command header,
1719 * the firmware file is corrupted and it should stop the patching
1722 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) {
1723 bt_dev_err(hdev, "Intel fw corrupted: invalid cmd read");
1729 cmd = (struct hci_command_hdr *)(*fw_ptr);
1730 *fw_ptr += sizeof(*cmd);
1731 remain -= sizeof(*cmd);
1733 /* Ensure that the remain firmware data is long enough than the length
1734 * of command parameter. If not, the firmware file is corrupted.
1736 if (remain < cmd->plen) {
1737 bt_dev_err(hdev, "Intel fw corrupted: invalid cmd len");
1741 /* If there is a command that loads a patch in the firmware
1742 * file, then enable the patch upon success, otherwise just
1743 * disable the manufacturer mode, for example patch activation
1744 * is not required when the default firmware patch file is used
1745 * because there are no patch data to load.
1747 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e)
1750 cmd_param = *fw_ptr;
1751 *fw_ptr += cmd->plen;
1752 remain -= cmd->plen;
1754 /* This reads the expected events when the above command is sent to the
1755 * device. Some vendor commands expects more than one events, for
1756 * example command status event followed by vendor specific event.
1757 * For this case, it only keeps the last expected event. so the command
1758 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of
1759 * last expected event.
1761 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) {
1765 evt = (struct hci_event_hdr *)(*fw_ptr);
1766 *fw_ptr += sizeof(*evt);
1767 remain -= sizeof(*evt);
1769 if (remain < evt->plen) {
1770 bt_dev_err(hdev, "Intel fw corrupted: invalid evt len");
1774 evt_param = *fw_ptr;
1775 *fw_ptr += evt->plen;
1776 remain -= evt->plen;
1779 /* Every HCI commands in the firmware file has its correspond event.
1780 * If event is not found or remain is smaller than zero, the firmware
1781 * file is corrupted.
1783 if (!evt || !evt_param || remain < 0) {
1784 bt_dev_err(hdev, "Intel fw corrupted: invalid evt read");
1788 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen,
1789 cmd_param, evt->evt, HCI_INIT_TIMEOUT);
1791 bt_dev_err(hdev, "sending Intel patch command (0x%4.4x) failed (%ld)",
1792 cmd->opcode, PTR_ERR(skb));
1793 return PTR_ERR(skb);
1796 /* It ensures that the returned event matches the event data read from
1797 * the firmware file. At fist, it checks the length and then
1798 * the contents of the event.
1800 if (skb->len != evt->plen) {
1801 bt_dev_err(hdev, "mismatch event length (opcode 0x%4.4x)",
1802 le16_to_cpu(cmd->opcode));
1807 if (memcmp(skb->data, evt_param, evt->plen)) {
1808 bt_dev_err(hdev, "mismatch event parameter (opcode 0x%4.4x)",
1809 le16_to_cpu(cmd->opcode));
1818 static int btusb_setup_intel(struct hci_dev *hdev)
1820 struct sk_buff *skb;
1821 const struct firmware *fw;
1823 int disable_patch, err;
1824 struct intel_version ver;
1826 BT_DBG("%s", hdev->name);
1828 /* The controller has a bug with the first HCI command sent to it
1829 * returning number of completed commands as zero. This would stall the
1830 * command processing in the Bluetooth core.
1832 * As a workaround, send HCI Reset command first which will reset the
1833 * number of completed commands and allow normal command processing
1836 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1838 bt_dev_err(hdev, "sending initial HCI reset command failed (%ld)",
1840 return PTR_ERR(skb);
1844 /* Read Intel specific controller version first to allow selection of
1845 * which firmware file to load.
1847 * The returned information are hardware variant and revision plus
1848 * firmware variant, revision and build number.
1850 err = btintel_read_version(hdev, &ver);
1854 bt_dev_info(hdev, "read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
1855 ver.hw_platform, ver.hw_variant, ver.hw_revision,
1856 ver.fw_variant, ver.fw_revision, ver.fw_build_num,
1857 ver.fw_build_ww, ver.fw_build_yy, ver.fw_patch_num);
1859 /* fw_patch_num indicates the version of patch the device currently
1860 * have. If there is no patch data in the device, it is always 0x00.
1861 * So, if it is other than 0x00, no need to patch the device again.
1863 if (ver.fw_patch_num) {
1864 bt_dev_info(hdev, "Intel device is already patched. "
1865 "patch num: %02x", ver.fw_patch_num);
1869 /* Opens the firmware patch file based on the firmware version read
1870 * from the controller. If it fails to open the matching firmware
1871 * patch file, it tries to open the default firmware patch file.
1872 * If no patch file is found, allow the device to operate without
1875 fw = btusb_setup_intel_get_fw(hdev, &ver);
1880 /* Enable the manufacturer mode of the controller.
1881 * Only while this mode is enabled, the driver can download the
1882 * firmware patch data and configuration parameters.
1884 err = btintel_enter_mfg(hdev);
1886 release_firmware(fw);
1892 /* The firmware data file consists of list of Intel specific HCI
1893 * commands and its expected events. The first byte indicates the
1894 * type of the message, either HCI command or HCI event.
1896 * It reads the command and its expected event from the firmware file,
1897 * and send to the controller. Once __hci_cmd_sync_ev() returns,
1898 * the returned event is compared with the event read from the firmware
1899 * file and it will continue until all the messages are downloaded to
1902 * Once the firmware patching is completed successfully,
1903 * the manufacturer mode is disabled with reset and activating the
1906 * If the firmware patching fails, the manufacturer mode is
1907 * disabled with reset and deactivating the patch.
1909 * If the default patch file is used, no reset is done when disabling
1912 while (fw->size > fw_ptr - fw->data) {
1915 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr,
1918 goto exit_mfg_deactivate;
1921 release_firmware(fw);
1924 goto exit_mfg_disable;
1926 /* Patching completed successfully and disable the manufacturer mode
1927 * with reset and activate the downloaded firmware patches.
1929 err = btintel_exit_mfg(hdev, true, true);
1933 bt_dev_info(hdev, "Intel firmware patch completed and activated");
1938 /* Disable the manufacturer mode without reset */
1939 err = btintel_exit_mfg(hdev, false, false);
1943 bt_dev_info(hdev, "Intel firmware patch completed");
1947 exit_mfg_deactivate:
1948 release_firmware(fw);
1950 /* Patching failed. Disable the manufacturer mode with reset and
1951 * deactivate the downloaded firmware patches.
1953 err = btintel_exit_mfg(hdev, true, false);
1957 bt_dev_info(hdev, "Intel firmware patch completed and deactivated");
1960 /* Set the event mask for Intel specific vendor events. This enables
1961 * a few extra events that are useful during general operation.
1963 btintel_set_event_mask_mfg(hdev, false);
1965 btintel_check_bdaddr(hdev);
1969 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
1971 struct sk_buff *skb;
1972 struct hci_event_hdr *hdr;
1973 struct hci_ev_cmd_complete *evt;
1975 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL);
1979 hdr = skb_put(skb, sizeof(*hdr));
1980 hdr->evt = HCI_EV_CMD_COMPLETE;
1981 hdr->plen = sizeof(*evt) + 1;
1983 evt = skb_put(skb, sizeof(*evt));
1985 evt->opcode = cpu_to_le16(opcode);
1987 skb_put_u8(skb, 0x00);
1989 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
1991 return hci_recv_frame(hdev, skb);
1994 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
1997 /* When the device is in bootloader mode, then it can send
1998 * events via the bulk endpoint. These events are treated the
1999 * same way as the ones received from the interrupt endpoint.
2001 if (test_bit(BTUSB_BOOTLOADER, &data->flags))
2002 return btusb_recv_intr(data, buffer, count);
2004 return btusb_recv_bulk(data, buffer, count);
2007 static void btusb_intel_bootup(struct btusb_data *data, const void *ptr,
2010 const struct intel_bootup *evt = ptr;
2012 if (len != sizeof(*evt))
2015 if (test_and_clear_bit(BTUSB_BOOTING, &data->flags))
2016 wake_up_bit(&data->flags, BTUSB_BOOTING);
2019 static void btusb_intel_secure_send_result(struct btusb_data *data,
2020 const void *ptr, unsigned int len)
2022 const struct intel_secure_send_result *evt = ptr;
2024 if (len != sizeof(*evt))
2028 set_bit(BTUSB_FIRMWARE_FAILED, &data->flags);
2030 if (test_and_clear_bit(BTUSB_DOWNLOADING, &data->flags) &&
2031 test_bit(BTUSB_FIRMWARE_LOADED, &data->flags))
2032 wake_up_bit(&data->flags, BTUSB_DOWNLOADING);
2035 static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb)
2037 struct btusb_data *data = hci_get_drvdata(hdev);
2039 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
2040 struct hci_event_hdr *hdr = (void *)skb->data;
2042 if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff &&
2044 const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1;
2045 unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1;
2047 switch (skb->data[2]) {
2049 /* When switching to the operational firmware
2050 * the device sends a vendor specific event
2051 * indicating that the bootup completed.
2053 btusb_intel_bootup(data, ptr, len);
2056 /* When the firmware loading completes the
2057 * device sends out a vendor specific event
2058 * indicating the result of the firmware
2061 btusb_intel_secure_send_result(data, ptr, len);
2067 return hci_recv_frame(hdev, skb);
2070 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
2072 struct btusb_data *data = hci_get_drvdata(hdev);
2075 BT_DBG("%s", hdev->name);
2077 switch (hci_skb_pkt_type(skb)) {
2078 case HCI_COMMAND_PKT:
2079 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
2080 struct hci_command_hdr *cmd = (void *)skb->data;
2081 __u16 opcode = le16_to_cpu(cmd->opcode);
2083 /* When in bootloader mode and the command 0xfc09
2084 * is received, it needs to be send down the
2085 * bulk endpoint. So allocate a bulk URB instead.
2087 if (opcode == 0xfc09)
2088 urb = alloc_bulk_urb(hdev, skb);
2090 urb = alloc_ctrl_urb(hdev, skb);
2092 /* When the 0xfc01 command is issued to boot into
2093 * the operational firmware, it will actually not
2094 * send a command complete event. To keep the flow
2095 * control working inject that event here.
2097 if (opcode == 0xfc01)
2098 inject_cmd_complete(hdev, opcode);
2100 urb = alloc_ctrl_urb(hdev, skb);
2103 return PTR_ERR(urb);
2105 hdev->stat.cmd_tx++;
2106 return submit_or_queue_tx_urb(hdev, urb);
2108 case HCI_ACLDATA_PKT:
2109 urb = alloc_bulk_urb(hdev, skb);
2111 return PTR_ERR(urb);
2113 hdev->stat.acl_tx++;
2114 return submit_or_queue_tx_urb(hdev, urb);
2116 case HCI_SCODATA_PKT:
2117 if (hci_conn_num(hdev, SCO_LINK) < 1)
2120 urb = alloc_isoc_urb(hdev, skb);
2122 return PTR_ERR(urb);
2124 hdev->stat.sco_tx++;
2125 return submit_tx_urb(hdev, urb);
2131 static bool btusb_setup_intel_new_get_fw_name(struct intel_version *ver,
2132 struct intel_boot_params *params,
2133 char *fw_name, size_t len,
2136 switch (ver->hw_variant) {
2137 case 0x0b: /* SfP */
2138 case 0x0c: /* WsP */
2139 snprintf(fw_name, len, "intel/ibt-%u-%u.%s",
2140 le16_to_cpu(ver->hw_variant),
2141 le16_to_cpu(params->dev_revid),
2144 case 0x11: /* JfP */
2145 case 0x12: /* ThP */
2146 case 0x13: /* HrP */
2147 case 0x14: /* CcP */
2148 snprintf(fw_name, len, "intel/ibt-%u-%u-%u.%s",
2149 le16_to_cpu(ver->hw_variant),
2150 le16_to_cpu(ver->hw_revision),
2151 le16_to_cpu(ver->fw_revision),
2160 static int btusb_setup_intel_new(struct hci_dev *hdev)
2162 struct btusb_data *data = hci_get_drvdata(hdev);
2163 struct intel_version ver;
2164 struct intel_boot_params params;
2165 const struct firmware *fw;
2168 ktime_t calltime, delta, rettime;
2169 unsigned long long duration;
2172 BT_DBG("%s", hdev->name);
2174 /* Set the default boot parameter to 0x0 and it is updated to
2175 * SKU specific boot parameter after reading Intel_Write_Boot_Params
2176 * command while downloading the firmware.
2178 boot_param = 0x00000000;
2180 calltime = ktime_get();
2182 /* Read the Intel version information to determine if the device
2183 * is in bootloader mode or if it already has operational firmware
2186 err = btintel_read_version(hdev, &ver);
2188 bt_dev_err(hdev, "Intel Read version failed (%d)", err);
2189 btintel_reset_to_bootloader(hdev);
2193 /* The hardware platform number has a fixed value of 0x37 and
2194 * for now only accept this single value.
2196 if (ver.hw_platform != 0x37) {
2197 bt_dev_err(hdev, "Unsupported Intel hardware platform (%u)",
2202 /* Check for supported iBT hardware variants of this firmware
2205 * This check has been put in place to ensure correct forward
2206 * compatibility options when newer hardware variants come along.
2208 switch (ver.hw_variant) {
2209 case 0x0b: /* SfP */
2210 case 0x0c: /* WsP */
2211 case 0x11: /* JfP */
2212 case 0x12: /* ThP */
2213 case 0x13: /* HrP */
2214 case 0x14: /* CcP */
2217 bt_dev_err(hdev, "Unsupported Intel hardware variant (%u)",
2222 btintel_version_info(hdev, &ver);
2224 /* The firmware variant determines if the device is in bootloader
2225 * mode or is running operational firmware. The value 0x06 identifies
2226 * the bootloader and the value 0x23 identifies the operational
2229 * When the operational firmware is already present, then only
2230 * the check for valid Bluetooth device address is needed. This
2231 * determines if the device will be added as configured or
2232 * unconfigured controller.
2234 * It is not possible to use the Secure Boot Parameters in this
2235 * case since that command is only available in bootloader mode.
2237 if (ver.fw_variant == 0x23) {
2238 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2239 btintel_check_bdaddr(hdev);
2243 /* If the device is not in bootloader mode, then the only possible
2244 * choice is to return an error and abort the device initialization.
2246 if (ver.fw_variant != 0x06) {
2247 bt_dev_err(hdev, "Unsupported Intel firmware variant (%u)",
2252 /* Read the secure boot parameters to identify the operating
2253 * details of the bootloader.
2255 err = btintel_read_boot_params(hdev, ¶ms);
2259 /* It is required that every single firmware fragment is acknowledged
2260 * with a command complete event. If the boot parameters indicate
2261 * that this bootloader does not send them, then abort the setup.
2263 if (params.limited_cce != 0x00) {
2264 bt_dev_err(hdev, "Unsupported Intel firmware loading method (%u)",
2265 params.limited_cce);
2269 /* If the OTP has no valid Bluetooth device address, then there will
2270 * also be no valid address for the operational firmware.
2272 if (!bacmp(¶ms.otp_bdaddr, BDADDR_ANY)) {
2273 bt_dev_info(hdev, "No device address configured");
2274 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
2277 /* With this Intel bootloader only the hardware variant and device
2278 * revision information are used to select the right firmware for SfP
2281 * The firmware filename is ibt-<hw_variant>-<dev_revid>.sfi.
2283 * Currently the supported hardware variants are:
2284 * 11 (0x0b) for iBT3.0 (LnP/SfP)
2285 * 12 (0x0c) for iBT3.5 (WsP)
2287 * For ThP/JfP and for future SKU's, the FW name varies based on HW
2288 * variant, HW revision and FW revision, as these are dependent on CNVi
2289 * and RF Combination.
2291 * 17 (0x11) for iBT3.5 (JfP)
2292 * 18 (0x12) for iBT3.5 (ThP)
2294 * The firmware file name for these will be
2295 * ibt-<hw_variant>-<hw_revision>-<fw_revision>.sfi.
2298 err = btusb_setup_intel_new_get_fw_name(&ver, ¶ms, fwname,
2299 sizeof(fwname), "sfi");
2301 bt_dev_err(hdev, "Unsupported Intel firmware naming");
2305 err = request_firmware(&fw, fwname, &hdev->dev);
2307 bt_dev_err(hdev, "Failed to load Intel firmware file (%d)", err);
2311 bt_dev_info(hdev, "Found device firmware: %s", fwname);
2313 /* Save the DDC file name for later use to apply once the firmware
2314 * downloading is done.
2316 err = btusb_setup_intel_new_get_fw_name(&ver, ¶ms, fwname,
2317 sizeof(fwname), "ddc");
2319 bt_dev_err(hdev, "Unsupported Intel firmware naming");
2323 if (fw->size < 644) {
2324 bt_dev_err(hdev, "Invalid size of firmware file (%zu)",
2330 set_bit(BTUSB_DOWNLOADING, &data->flags);
2332 /* Start firmware downloading and get boot parameter */
2333 err = btintel_download_firmware(hdev, fw, &boot_param);
2335 /* When FW download fails, send Intel Reset to retry
2338 btintel_reset_to_bootloader(hdev);
2341 set_bit(BTUSB_FIRMWARE_LOADED, &data->flags);
2343 bt_dev_info(hdev, "Waiting for firmware download to complete");
2345 /* Before switching the device into operational mode and with that
2346 * booting the loaded firmware, wait for the bootloader notification
2347 * that all fragments have been successfully received.
2349 * When the event processing receives the notification, then the
2350 * BTUSB_DOWNLOADING flag will be cleared.
2352 * The firmware loading should not take longer than 5 seconds
2353 * and thus just timeout if that happens and fail the setup
2356 err = wait_on_bit_timeout(&data->flags, BTUSB_DOWNLOADING,
2358 msecs_to_jiffies(5000));
2359 if (err == -EINTR) {
2360 bt_dev_err(hdev, "Firmware loading interrupted");
2365 bt_dev_err(hdev, "Firmware loading timeout");
2367 btintel_reset_to_bootloader(hdev);
2371 if (test_bit(BTUSB_FIRMWARE_FAILED, &data->flags)) {
2372 bt_dev_err(hdev, "Firmware loading failed");
2377 rettime = ktime_get();
2378 delta = ktime_sub(rettime, calltime);
2379 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2381 bt_dev_info(hdev, "Firmware loaded in %llu usecs", duration);
2384 release_firmware(fw);
2389 calltime = ktime_get();
2391 set_bit(BTUSB_BOOTING, &data->flags);
2393 err = btintel_send_intel_reset(hdev, boot_param);
2395 bt_dev_err(hdev, "Intel Soft Reset failed (%d)", err);
2396 btintel_reset_to_bootloader(hdev);
2400 /* The bootloader will not indicate when the device is ready. This
2401 * is done by the operational firmware sending bootup notification.
2403 * Booting into operational firmware should not take longer than
2404 * 1 second. However if that happens, then just fail the setup
2405 * since something went wrong.
2407 bt_dev_info(hdev, "Waiting for device to boot");
2409 err = wait_on_bit_timeout(&data->flags, BTUSB_BOOTING,
2411 msecs_to_jiffies(1000));
2413 if (err == -EINTR) {
2414 bt_dev_err(hdev, "Device boot interrupted");
2419 bt_dev_err(hdev, "Device boot timeout");
2420 btintel_reset_to_bootloader(hdev);
2424 rettime = ktime_get();
2425 delta = ktime_sub(rettime, calltime);
2426 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2428 bt_dev_info(hdev, "Device booted in %llu usecs", duration);
2430 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2432 /* Once the device is running in operational mode, it needs to apply
2433 * the device configuration (DDC) parameters.
2435 * The device can work without DDC parameters, so even if it fails
2436 * to load the file, no need to fail the setup.
2438 btintel_load_ddc_config(hdev, fwname);
2440 /* Set the event mask for Intel specific vendor events. This enables
2441 * a few extra events that are useful during general operation. It
2442 * does not enable any debugging related events.
2444 * The device will function correctly without these events enabled
2445 * and thus no need to fail the setup.
2447 btintel_set_event_mask(hdev, false);
2449 /* Read the Intel version information after loading the FW */
2450 err = btintel_read_version(hdev, &ver);
2454 btintel_version_info(hdev, &ver);
2459 static int btusb_shutdown_intel(struct hci_dev *hdev)
2461 struct sk_buff *skb;
2464 /* In the shutdown sequence where Bluetooth is turned off followed
2465 * by WiFi being turned off, turning WiFi back on causes issue with
2466 * the RF calibration.
2468 * To ensure that any RF activity has been stopped, issue HCI Reset
2469 * command to clear all ongoing activity including advertising,
2472 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
2475 bt_dev_err(hdev, "HCI reset during shutdown failed");
2480 /* Some platforms have an issue with BT LED when the interface is
2481 * down or BT radio is turned off, which takes 5 seconds to BT LED
2482 * goes off. This command turns off the BT LED immediately.
2484 skb = __hci_cmd_sync(hdev, 0xfc3f, 0, NULL, HCI_INIT_TIMEOUT);
2487 bt_dev_err(hdev, "turning off Intel device LED failed");
2495 static int btusb_shutdown_intel_new(struct hci_dev *hdev)
2497 struct sk_buff *skb;
2499 /* Send HCI Reset to the controller to stop any BT activity which
2500 * were triggered. This will help to save power and maintain the
2501 * sync b/w Host and controller
2503 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
2505 bt_dev_err(hdev, "HCI reset during shutdown failed");
2506 return PTR_ERR(skb);
2513 #define FIRMWARE_MT7663 "mediatek/mt7663pr2h.bin"
2514 #define FIRMWARE_MT7668 "mediatek/mt7668pr2h.bin"
2516 #define HCI_WMT_MAX_EVENT_SIZE 64
2519 BTMTK_WMT_PATCH_DWNLD = 0x1,
2520 BTMTK_WMT_FUNC_CTRL = 0x6,
2521 BTMTK_WMT_RST = 0x7,
2522 BTMTK_WMT_SEMAPHORE = 0x17,
2527 BTMTK_WMT_PATCH_UNDONE,
2528 BTMTK_WMT_PATCH_DONE,
2529 BTMTK_WMT_ON_UNDONE,
2531 BTMTK_WMT_ON_PROGRESS,
2534 struct btmtk_wmt_hdr {
2541 struct btmtk_hci_wmt_cmd {
2542 struct btmtk_wmt_hdr hdr;
2546 struct btmtk_hci_wmt_evt {
2547 struct hci_event_hdr hhdr;
2548 struct btmtk_wmt_hdr whdr;
2551 struct btmtk_hci_wmt_evt_funcc {
2552 struct btmtk_hci_wmt_evt hwhdr;
2556 struct btmtk_tci_sleep {
2559 __le16 host_duration;
2561 u8 time_compensation;
2564 struct btmtk_hci_wmt_params {
2572 static void btusb_mtk_wmt_recv(struct urb *urb)
2574 struct hci_dev *hdev = urb->context;
2575 struct btusb_data *data = hci_get_drvdata(hdev);
2576 struct hci_event_hdr *hdr;
2577 struct sk_buff *skb;
2580 if (urb->status == 0 && urb->actual_length > 0) {
2581 hdev->stat.byte_rx += urb->actual_length;
2583 /* WMT event shouldn't be fragmented and the size should be
2584 * less than HCI_WMT_MAX_EVENT_SIZE.
2586 skb = bt_skb_alloc(HCI_WMT_MAX_EVENT_SIZE, GFP_ATOMIC);
2588 hdev->stat.err_rx++;
2592 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
2593 skb_put_data(skb, urb->transfer_buffer, urb->actual_length);
2595 hdr = (void *)skb->data;
2596 /* Fix up the vendor event id with 0xff for vendor specific
2597 * instead of 0xe4 so that event send via monitoring socket can
2598 * be parsed properly.
2602 /* When someone waits for the WMT event, the skb is being cloned
2603 * and being processed the events from there then.
2605 if (test_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags)) {
2606 data->evt_skb = skb_clone(skb, GFP_ATOMIC);
2611 err = hci_recv_frame(hdev, skb);
2615 if (test_and_clear_bit(BTUSB_TX_WAIT_VND_EVT,
2617 /* Barrier to sync with other CPUs */
2618 smp_mb__after_atomic();
2619 wake_up_bit(&data->flags,
2620 BTUSB_TX_WAIT_VND_EVT);
2625 kfree_skb(data->evt_skb);
2626 data->evt_skb = NULL;
2628 } else if (urb->status == -ENOENT) {
2629 /* Avoid suspend failed when usb_kill_urb */
2633 usb_mark_last_busy(data->udev);
2635 /* The URB complete handler is still called with urb->actual_length = 0
2636 * when the event is not available, so we should keep re-submitting
2637 * URB until WMT event returns, Also, It's necessary to wait some time
2638 * between the two consecutive control URBs to relax the target device
2639 * to generate the event. Otherwise, the WMT event cannot return from
2640 * the device successfully.
2644 usb_anchor_urb(urb, &data->ctrl_anchor);
2645 err = usb_submit_urb(urb, GFP_ATOMIC);
2647 /* -EPERM: urb is being killed;
2648 * -ENODEV: device got disconnected
2650 if (err != -EPERM && err != -ENODEV)
2651 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
2653 usb_unanchor_urb(urb);
2657 static int btusb_mtk_submit_wmt_recv_urb(struct hci_dev *hdev)
2659 struct btusb_data *data = hci_get_drvdata(hdev);
2660 struct usb_ctrlrequest *dr;
2666 urb = usb_alloc_urb(0, GFP_KERNEL);
2670 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
2676 dr->bRequestType = USB_TYPE_VENDOR | USB_DIR_IN;
2678 dr->wIndex = cpu_to_le16(0);
2679 dr->wValue = cpu_to_le16(48);
2680 dr->wLength = cpu_to_le16(size);
2682 buf = kmalloc(size, GFP_KERNEL);
2688 pipe = usb_rcvctrlpipe(data->udev, 0);
2690 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
2691 buf, size, btusb_mtk_wmt_recv, hdev);
2693 urb->transfer_flags |= URB_FREE_BUFFER;
2695 usb_anchor_urb(urb, &data->ctrl_anchor);
2696 err = usb_submit_urb(urb, GFP_KERNEL);
2698 if (err != -EPERM && err != -ENODEV)
2699 bt_dev_err(hdev, "urb %p submission failed (%d)",
2701 usb_unanchor_urb(urb);
2709 static int btusb_mtk_hci_wmt_sync(struct hci_dev *hdev,
2710 struct btmtk_hci_wmt_params *wmt_params)
2712 struct btusb_data *data = hci_get_drvdata(hdev);
2713 struct btmtk_hci_wmt_evt_funcc *wmt_evt_funcc;
2714 u32 hlen, status = BTMTK_WMT_INVALID;
2715 struct btmtk_hci_wmt_evt *wmt_evt;
2716 struct btmtk_hci_wmt_cmd wc;
2717 struct btmtk_wmt_hdr *hdr;
2720 /* Submit control IN URB on demand to process the WMT event */
2721 err = btusb_mtk_submit_wmt_recv_urb(hdev);
2725 /* Send the WMT command and wait until the WMT event returns */
2726 hlen = sizeof(*hdr) + wmt_params->dlen;
2730 hdr = (struct btmtk_wmt_hdr *)&wc;
2732 hdr->op = wmt_params->op;
2733 hdr->dlen = cpu_to_le16(wmt_params->dlen + 1);
2734 hdr->flag = wmt_params->flag;
2735 memcpy(wc.data, wmt_params->data, wmt_params->dlen);
2737 set_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2739 err = __hci_cmd_send(hdev, 0xfc6f, hlen, &wc);
2742 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2746 /* The vendor specific WMT commands are all answered by a vendor
2747 * specific event and will have the Command Status or Command
2748 * Complete as with usual HCI command flow control.
2750 * After sending the command, wait for BTUSB_TX_WAIT_VND_EVT
2751 * state to be cleared. The driver specific event receive routine
2752 * will clear that state and with that indicate completion of the
2755 err = wait_on_bit_timeout(&data->flags, BTUSB_TX_WAIT_VND_EVT,
2756 TASK_INTERRUPTIBLE, HCI_INIT_TIMEOUT);
2757 if (err == -EINTR) {
2758 bt_dev_err(hdev, "Execution of wmt command interrupted");
2759 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2764 bt_dev_err(hdev, "Execution of wmt command timed out");
2765 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2769 /* Parse and handle the return WMT event */
2770 wmt_evt = (struct btmtk_hci_wmt_evt *)data->evt_skb->data;
2771 if (wmt_evt->whdr.op != hdr->op) {
2772 bt_dev_err(hdev, "Wrong op received %d expected %d",
2773 wmt_evt->whdr.op, hdr->op);
2778 switch (wmt_evt->whdr.op) {
2779 case BTMTK_WMT_SEMAPHORE:
2780 if (wmt_evt->whdr.flag == 2)
2781 status = BTMTK_WMT_PATCH_UNDONE;
2783 status = BTMTK_WMT_PATCH_DONE;
2785 case BTMTK_WMT_FUNC_CTRL:
2786 wmt_evt_funcc = (struct btmtk_hci_wmt_evt_funcc *)wmt_evt;
2787 if (be16_to_cpu(wmt_evt_funcc->status) == 0x404)
2788 status = BTMTK_WMT_ON_DONE;
2789 else if (be16_to_cpu(wmt_evt_funcc->status) == 0x420)
2790 status = BTMTK_WMT_ON_PROGRESS;
2792 status = BTMTK_WMT_ON_UNDONE;
2796 if (wmt_params->status)
2797 *wmt_params->status = status;
2800 kfree_skb(data->evt_skb);
2801 data->evt_skb = NULL;
2806 static int btusb_mtk_setup_firmware(struct hci_dev *hdev, const char *fwname)
2808 struct btmtk_hci_wmt_params wmt_params;
2809 const struct firmware *fw;
2815 err = request_firmware(&fw, fwname, &hdev->dev);
2817 bt_dev_err(hdev, "Failed to load firmware file (%d)", err);
2824 /* The size of patch header is 30 bytes, should be skip */
2827 goto err_release_fw;
2834 wmt_params.op = BTMTK_WMT_PATCH_DWNLD;
2835 wmt_params.status = NULL;
2837 while (fw_size > 0) {
2838 dlen = min_t(int, 250, fw_size);
2840 /* Tell deivice the position in sequence */
2841 if (fw_size - dlen <= 0)
2843 else if (fw_size < fw->size - 30)
2846 wmt_params.flag = flag;
2847 wmt_params.dlen = dlen;
2848 wmt_params.data = fw_ptr;
2850 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2852 bt_dev_err(hdev, "Failed to send wmt patch dwnld (%d)",
2854 goto err_release_fw;
2861 wmt_params.op = BTMTK_WMT_RST;
2862 wmt_params.flag = 4;
2863 wmt_params.dlen = 0;
2864 wmt_params.data = NULL;
2865 wmt_params.status = NULL;
2867 /* Activate funciton the firmware providing to */
2868 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2870 bt_dev_err(hdev, "Failed to send wmt rst (%d)", err);
2871 goto err_release_fw;
2874 /* Wait a few moments for firmware activation done */
2875 usleep_range(10000, 12000);
2878 release_firmware(fw);
2883 static int btusb_mtk_func_query(struct hci_dev *hdev)
2885 struct btmtk_hci_wmt_params wmt_params;
2889 /* Query whether the function is enabled */
2890 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
2891 wmt_params.flag = 4;
2892 wmt_params.dlen = sizeof(param);
2893 wmt_params.data = ¶m;
2894 wmt_params.status = &status;
2896 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2898 bt_dev_err(hdev, "Failed to query function status (%d)", err);
2905 static int btusb_mtk_reg_read(struct btusb_data *data, u32 reg, u32 *val)
2907 int pipe, err, size = sizeof(u32);
2910 buf = kzalloc(size, GFP_KERNEL);
2914 pipe = usb_rcvctrlpipe(data->udev, 0);
2915 err = usb_control_msg(data->udev, pipe, 0x63,
2916 USB_TYPE_VENDOR | USB_DIR_IN,
2917 reg >> 16, reg & 0xffff,
2918 buf, size, USB_CTRL_SET_TIMEOUT);
2922 *val = get_unaligned_le32(buf);
2930 static int btusb_mtk_id_get(struct btusb_data *data, u32 *id)
2932 return btusb_mtk_reg_read(data, 0x80000008, id);
2935 static int btusb_mtk_setup(struct hci_dev *hdev)
2937 struct btusb_data *data = hci_get_drvdata(hdev);
2938 struct btmtk_hci_wmt_params wmt_params;
2939 ktime_t calltime, delta, rettime;
2940 struct btmtk_tci_sleep tci_sleep;
2941 unsigned long long duration;
2942 struct sk_buff *skb;
2948 calltime = ktime_get();
2950 err = btusb_mtk_id_get(data, &dev_id);
2952 bt_dev_err(hdev, "Failed to get device id (%d)", err);
2958 fwname = FIRMWARE_MT7663;
2961 fwname = FIRMWARE_MT7668;
2964 bt_dev_err(hdev, "Unsupported support hardware variant (%08x)",
2969 /* Query whether the firmware is already download */
2970 wmt_params.op = BTMTK_WMT_SEMAPHORE;
2971 wmt_params.flag = 1;
2972 wmt_params.dlen = 0;
2973 wmt_params.data = NULL;
2974 wmt_params.status = &status;
2976 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2978 bt_dev_err(hdev, "Failed to query firmware status (%d)", err);
2982 if (status == BTMTK_WMT_PATCH_DONE) {
2983 bt_dev_info(hdev, "firmware already downloaded");
2984 goto ignore_setup_fw;
2987 /* Setup a firmware which the device definitely requires */
2988 err = btusb_mtk_setup_firmware(hdev, fwname);
2993 err = readx_poll_timeout(btusb_mtk_func_query, hdev, status,
2994 status < 0 || status != BTMTK_WMT_ON_PROGRESS,
2996 /* -ETIMEDOUT happens */
3000 /* The other errors happen in btusb_mtk_func_query */
3004 if (status == BTMTK_WMT_ON_DONE) {
3005 bt_dev_info(hdev, "function already on");
3006 goto ignore_func_on;
3009 /* Enable Bluetooth protocol */
3011 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3012 wmt_params.flag = 0;
3013 wmt_params.dlen = sizeof(param);
3014 wmt_params.data = ¶m;
3015 wmt_params.status = NULL;
3017 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3019 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3024 /* Apply the low power environment setup */
3025 tci_sleep.mode = 0x5;
3026 tci_sleep.duration = cpu_to_le16(0x640);
3027 tci_sleep.host_duration = cpu_to_le16(0x640);
3028 tci_sleep.host_wakeup_pin = 0;
3029 tci_sleep.time_compensation = 0;
3031 skb = __hci_cmd_sync(hdev, 0xfc7a, sizeof(tci_sleep), &tci_sleep,
3035 bt_dev_err(hdev, "Failed to apply low power setting (%d)", err);
3040 rettime = ktime_get();
3041 delta = ktime_sub(rettime, calltime);
3042 duration = (unsigned long long)ktime_to_ns(delta) >> 10;
3044 bt_dev_info(hdev, "Device setup in %llu usecs", duration);
3049 static int btusb_mtk_shutdown(struct hci_dev *hdev)
3051 struct btmtk_hci_wmt_params wmt_params;
3055 /* Disable the device */
3056 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3057 wmt_params.flag = 0;
3058 wmt_params.dlen = sizeof(param);
3059 wmt_params.data = ¶m;
3060 wmt_params.status = NULL;
3062 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3064 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3071 MODULE_FIRMWARE(FIRMWARE_MT7663);
3072 MODULE_FIRMWARE(FIRMWARE_MT7668);
3075 /* Configure an out-of-band gpio as wake-up pin, if specified in device tree */
3076 static int marvell_config_oob_wake(struct hci_dev *hdev)
3078 struct sk_buff *skb;
3079 struct btusb_data *data = hci_get_drvdata(hdev);
3080 struct device *dev = &data->udev->dev;
3081 u16 pin, gap, opcode;
3085 /* Move on if no wakeup pin specified */
3086 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) ||
3087 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap))
3090 /* Vendor specific command to configure a GPIO as wake-up pin */
3091 opcode = hci_opcode_pack(0x3F, 0x59);
3092 cmd[0] = opcode & 0xFF;
3093 cmd[1] = opcode >> 8;
3094 cmd[2] = 2; /* length of parameters that follow */
3096 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */
3098 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
3100 bt_dev_err(hdev, "%s: No memory\n", __func__);
3104 skb_put_data(skb, cmd, sizeof(cmd));
3105 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT;
3107 ret = btusb_send_frame(hdev, skb);
3109 bt_dev_err(hdev, "%s: configuration failed\n", __func__);
3118 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
3119 const bdaddr_t *bdaddr)
3121 struct sk_buff *skb;
3126 buf[1] = sizeof(bdaddr_t);
3127 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
3129 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
3132 bt_dev_err(hdev, "changing Marvell device address failed (%ld)",
3141 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
3142 const bdaddr_t *bdaddr)
3144 struct sk_buff *skb;
3151 buf[3] = sizeof(bdaddr_t);
3152 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
3154 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
3157 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
3165 #define QCA_DFU_PACKET_LEN 4096
3167 #define QCA_GET_TARGET_VERSION 0x09
3168 #define QCA_CHECK_STATUS 0x05
3169 #define QCA_DFU_DOWNLOAD 0x01
3171 #define QCA_SYSCFG_UPDATED 0x40
3172 #define QCA_PATCH_UPDATED 0x80
3173 #define QCA_DFU_TIMEOUT 3000
3175 struct qca_version {
3177 __le32 patch_version;
3183 struct qca_rampatch_version {
3185 __le16 patch_version;
3188 struct qca_device_info {
3190 u8 rampatch_hdr; /* length of header in rampatch */
3191 u8 nvm_hdr; /* length of header in NVM */
3192 u8 ver_offset; /* offset of version structure in rampatch */
3195 static const struct qca_device_info qca_devices_table[] = {
3196 { 0x00000100, 20, 4, 10 }, /* Rome 1.0 */
3197 { 0x00000101, 20, 4, 10 }, /* Rome 1.1 */
3198 { 0x00000200, 28, 4, 18 }, /* Rome 2.0 */
3199 { 0x00000201, 28, 4, 18 }, /* Rome 2.1 */
3200 { 0x00000300, 28, 4, 18 }, /* Rome 3.0 */
3201 { 0x00000302, 28, 4, 18 }, /* Rome 3.2 */
3204 static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request,
3205 void *data, u16 size)
3210 buf = kmalloc(size, GFP_KERNEL);
3214 /* Found some of USB hosts have IOT issues with ours so that we should
3215 * not wait until HCI layer is ready.
3217 pipe = usb_rcvctrlpipe(udev, 0);
3218 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
3219 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
3221 dev_err(&udev->dev, "Failed to access otp area (%d)", err);
3225 memcpy(data, buf, size);
3233 static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
3234 const struct firmware *firmware,
3237 struct btusb_data *btdata = hci_get_drvdata(hdev);
3238 struct usb_device *udev = btdata->udev;
3239 size_t count, size, sent = 0;
3243 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
3247 count = firmware->size;
3249 size = min_t(size_t, count, hdr_size);
3250 memcpy(buf, firmware->data, size);
3252 /* USB patches should go down to controller through USB path
3253 * because binary format fits to go down through USB channel.
3254 * USB control path is for patching headers and USB bulk is for
3257 pipe = usb_sndctrlpipe(udev, 0);
3258 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
3259 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
3261 bt_dev_err(hdev, "Failed to send headers (%d)", err);
3269 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
3271 memcpy(buf, firmware->data + sent, size);
3273 pipe = usb_sndbulkpipe(udev, 0x02);
3274 err = usb_bulk_msg(udev, pipe, buf, size, &len,
3277 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)",
3278 sent, firmware->size, err);
3283 bt_dev_err(hdev, "Failed to get bulk buffer");
3297 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
3298 struct qca_version *ver,
3299 const struct qca_device_info *info)
3301 struct qca_rampatch_version *rver;
3302 const struct firmware *fw;
3303 u32 ver_rom, ver_patch;
3304 u16 rver_rom, rver_patch;
3308 ver_rom = le32_to_cpu(ver->rom_version);
3309 ver_patch = le32_to_cpu(ver->patch_version);
3311 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom);
3313 err = request_firmware(&fw, fwname, &hdev->dev);
3315 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)",
3320 bt_dev_info(hdev, "using rampatch file: %s", fwname);
3322 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
3323 rver_rom = le16_to_cpu(rver->rom_version);
3324 rver_patch = le16_to_cpu(rver->patch_version);
3326 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, "
3327 "firmware rome 0x%x build 0x%x",
3328 rver_rom, rver_patch, ver_rom, ver_patch);
3330 if (rver_rom != ver_rom || rver_patch <= ver_patch) {
3331 bt_dev_err(hdev, "rampatch file version did not match with firmware");
3336 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
3339 release_firmware(fw);
3344 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
3345 struct qca_version *ver,
3346 const struct qca_device_info *info)
3348 const struct firmware *fw;
3352 snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin",
3353 le32_to_cpu(ver->rom_version));
3355 err = request_firmware(&fw, fwname, &hdev->dev);
3357 bt_dev_err(hdev, "failed to request NVM file: %s (%d)",
3362 bt_dev_info(hdev, "using NVM file: %s", fwname);
3364 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
3366 release_firmware(fw);
3371 /* identify the ROM version and check whether patches are needed */
3372 static bool btusb_qca_need_patch(struct usb_device *udev)
3374 struct qca_version ver;
3376 if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3379 /* only low ROM versions need patches */
3380 return !(le32_to_cpu(ver.rom_version) & ~0xffffU);
3383 static int btusb_setup_qca(struct hci_dev *hdev)
3385 struct btusb_data *btdata = hci_get_drvdata(hdev);
3386 struct usb_device *udev = btdata->udev;
3387 const struct qca_device_info *info = NULL;
3388 struct qca_version ver;
3393 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3398 ver_rom = le32_to_cpu(ver.rom_version);
3399 /* Don't care about high ROM versions */
3400 if (ver_rom & ~0xffffU)
3403 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
3404 if (ver_rom == qca_devices_table[i].rom_version)
3405 info = &qca_devices_table[i];
3408 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom);
3412 err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status,
3417 if (!(status & QCA_PATCH_UPDATED)) {
3418 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
3423 if (!(status & QCA_SYSCFG_UPDATED)) {
3424 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
3432 static inline int __set_diag_interface(struct hci_dev *hdev)
3434 struct btusb_data *data = hci_get_drvdata(hdev);
3435 struct usb_interface *intf = data->diag;
3441 data->diag_tx_ep = NULL;
3442 data->diag_rx_ep = NULL;
3444 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
3445 struct usb_endpoint_descriptor *ep_desc;
3447 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
3449 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
3450 data->diag_tx_ep = ep_desc;
3454 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
3455 data->diag_rx_ep = ep_desc;
3460 if (!data->diag_tx_ep || !data->diag_rx_ep) {
3461 bt_dev_err(hdev, "invalid diagnostic descriptors");
3468 static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable)
3470 struct btusb_data *data = hci_get_drvdata(hdev);
3471 struct sk_buff *skb;
3475 if (!data->diag_tx_ep)
3476 return ERR_PTR(-ENODEV);
3478 urb = usb_alloc_urb(0, GFP_KERNEL);
3480 return ERR_PTR(-ENOMEM);
3482 skb = bt_skb_alloc(2, GFP_KERNEL);
3485 return ERR_PTR(-ENOMEM);
3488 skb_put_u8(skb, 0xf0);
3489 skb_put_u8(skb, enable);
3491 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress);
3493 usb_fill_bulk_urb(urb, data->udev, pipe,
3494 skb->data, skb->len, btusb_tx_complete, skb);
3496 skb->dev = (void *)hdev;
3501 static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable)
3503 struct btusb_data *data = hci_get_drvdata(hdev);
3509 if (!test_bit(HCI_RUNNING, &hdev->flags))
3512 urb = alloc_diag_urb(hdev, enable);
3514 return PTR_ERR(urb);
3516 return submit_or_queue_tx_urb(hdev, urb);
3520 static irqreturn_t btusb_oob_wake_handler(int irq, void *priv)
3522 struct btusb_data *data = priv;
3524 pm_wakeup_event(&data->udev->dev, 0);
3527 /* Disable only if not already disabled (keep it balanced) */
3528 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
3529 disable_irq_nosync(irq);
3530 disable_irq_wake(irq);
3535 static const struct of_device_id btusb_match_table[] = {
3536 { .compatible = "usb1286,204e" },
3537 { .compatible = "usbcf3,e300" }, /* QCA6174A */
3538 { .compatible = "usb4ca,301a" }, /* QCA6174A (Lite-On) */
3541 MODULE_DEVICE_TABLE(of, btusb_match_table);
3543 /* Use an oob wakeup pin? */
3544 static int btusb_config_oob_wake(struct hci_dev *hdev)
3546 struct btusb_data *data = hci_get_drvdata(hdev);
3547 struct device *dev = &data->udev->dev;
3550 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
3552 if (!of_match_device(btusb_match_table, dev))
3555 /* Move on if no IRQ specified */
3556 irq = of_irq_get_byname(dev->of_node, "wakeup");
3558 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__);
3562 irq_set_status_flags(irq, IRQ_NOAUTOEN);
3563 ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler,
3564 0, "OOB Wake-on-BT", data);
3566 bt_dev_err(hdev, "%s: IRQ request failed", __func__);
3570 ret = device_init_wakeup(dev, true);
3572 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__);
3576 data->oob_wake_irq = irq;
3577 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq);
3582 static void btusb_check_needs_reset_resume(struct usb_interface *intf)
3584 if (dmi_check_system(btusb_needs_reset_resume_table))
3585 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
3588 static int btusb_probe(struct usb_interface *intf,
3589 const struct usb_device_id *id)
3591 struct usb_endpoint_descriptor *ep_desc;
3592 struct gpio_desc *reset_gpio;
3593 struct btusb_data *data;
3594 struct hci_dev *hdev;
3595 unsigned ifnum_base;
3598 BT_DBG("intf %p id %p", intf, id);
3600 /* interface numbers are hardcoded in the spec */
3601 if (intf->cur_altsetting->desc.bInterfaceNumber != 0) {
3602 if (!(id->driver_info & BTUSB_IFNUM_2))
3604 if (intf->cur_altsetting->desc.bInterfaceNumber != 2)
3608 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber;
3610 if (!id->driver_info) {
3611 const struct usb_device_id *match;
3613 match = usb_match_id(intf, blacklist_table);
3618 if (id->driver_info == BTUSB_IGNORE)
3621 if (id->driver_info & BTUSB_ATH3012) {
3622 struct usb_device *udev = interface_to_usbdev(intf);
3624 /* Old firmware would otherwise let ath3k driver load
3625 * patch and sysconfig files
3627 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 &&
3628 !btusb_qca_need_patch(udev))
3632 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
3636 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
3637 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
3639 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
3640 data->intr_ep = ep_desc;
3644 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
3645 data->bulk_tx_ep = ep_desc;
3649 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
3650 data->bulk_rx_ep = ep_desc;
3655 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
3658 if (id->driver_info & BTUSB_AMP) {
3659 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
3660 data->cmdreq = 0x2b;
3662 data->cmdreq_type = USB_TYPE_CLASS;
3663 data->cmdreq = 0x00;
3666 data->udev = interface_to_usbdev(intf);
3669 INIT_WORK(&data->work, btusb_work);
3670 INIT_WORK(&data->waker, btusb_waker);
3671 init_usb_anchor(&data->deferred);
3672 init_usb_anchor(&data->tx_anchor);
3673 spin_lock_init(&data->txlock);
3675 init_usb_anchor(&data->intr_anchor);
3676 init_usb_anchor(&data->bulk_anchor);
3677 init_usb_anchor(&data->isoc_anchor);
3678 init_usb_anchor(&data->diag_anchor);
3679 init_usb_anchor(&data->ctrl_anchor);
3680 spin_lock_init(&data->rxlock);
3682 if (id->driver_info & BTUSB_INTEL_NEW) {
3683 data->recv_event = btusb_recv_event_intel;
3684 data->recv_bulk = btusb_recv_bulk_intel;
3685 set_bit(BTUSB_BOOTLOADER, &data->flags);
3687 data->recv_event = hci_recv_frame;
3688 data->recv_bulk = btusb_recv_bulk;
3691 hdev = hci_alloc_dev();
3695 hdev->bus = HCI_USB;
3696 hci_set_drvdata(hdev, data);
3698 if (id->driver_info & BTUSB_AMP)
3699 hdev->dev_type = HCI_AMP;
3701 hdev->dev_type = HCI_PRIMARY;
3705 SET_HCIDEV_DEV(hdev, &intf->dev);
3707 reset_gpio = gpiod_get_optional(&data->udev->dev, "reset",
3709 if (IS_ERR(reset_gpio)) {
3710 err = PTR_ERR(reset_gpio);
3712 } else if (reset_gpio) {
3713 data->reset_gpio = reset_gpio;
3716 hdev->open = btusb_open;
3717 hdev->close = btusb_close;
3718 hdev->flush = btusb_flush;
3719 hdev->send = btusb_send_frame;
3720 hdev->notify = btusb_notify;
3723 err = btusb_config_oob_wake(hdev);
3727 /* Marvell devices may need a specific chip configuration */
3728 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) {
3729 err = marvell_config_oob_wake(hdev);
3734 if (id->driver_info & BTUSB_CW6622)
3735 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
3737 if (id->driver_info & BTUSB_BCM2045)
3738 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
3740 if (id->driver_info & BTUSB_BCM92035)
3741 hdev->setup = btusb_setup_bcm92035;
3743 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
3744 (id->driver_info & BTUSB_BCM_PATCHRAM)) {
3745 hdev->manufacturer = 15;
3746 hdev->setup = btbcm_setup_patchram;
3747 hdev->set_diag = btusb_bcm_set_diag;
3748 hdev->set_bdaddr = btbcm_set_bdaddr;
3750 /* Broadcom LM_DIAG Interface numbers are hardcoded */
3751 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
3754 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
3755 (id->driver_info & BTUSB_BCM_APPLE)) {
3756 hdev->manufacturer = 15;
3757 hdev->setup = btbcm_setup_apple;
3758 hdev->set_diag = btusb_bcm_set_diag;
3760 /* Broadcom LM_DIAG Interface numbers are hardcoded */
3761 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
3764 if (id->driver_info & BTUSB_INTEL) {
3765 hdev->manufacturer = 2;
3766 hdev->setup = btusb_setup_intel;
3767 hdev->shutdown = btusb_shutdown_intel;
3768 hdev->set_diag = btintel_set_diag_mfg;
3769 hdev->set_bdaddr = btintel_set_bdaddr;
3770 hdev->cmd_timeout = btusb_intel_cmd_timeout;
3771 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
3772 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3773 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks);
3776 if (id->driver_info & BTUSB_INTEL_NEW) {
3777 hdev->manufacturer = 2;
3778 hdev->send = btusb_send_frame_intel;
3779 hdev->setup = btusb_setup_intel_new;
3780 hdev->shutdown = btusb_shutdown_intel_new;
3781 hdev->hw_error = btintel_hw_error;
3782 hdev->set_diag = btintel_set_diag;
3783 hdev->set_bdaddr = btintel_set_bdaddr;
3784 hdev->cmd_timeout = btusb_intel_cmd_timeout;
3785 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
3786 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3787 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks);
3790 if (id->driver_info & BTUSB_MARVELL)
3791 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
3793 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_MTK) &&
3794 (id->driver_info & BTUSB_MEDIATEK)) {
3795 hdev->setup = btusb_mtk_setup;
3796 hdev->shutdown = btusb_mtk_shutdown;
3797 hdev->manufacturer = 70;
3798 set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
3801 if (id->driver_info & BTUSB_SWAVE) {
3802 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
3803 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
3806 if (id->driver_info & BTUSB_INTEL_BOOT) {
3807 hdev->manufacturer = 2;
3808 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
3811 if (id->driver_info & BTUSB_ATH3012) {
3812 data->setup_on_usb = btusb_setup_qca;
3813 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
3814 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3815 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
3818 if (id->driver_info & BTUSB_QCA_ROME) {
3819 data->setup_on_usb = btusb_setup_qca;
3820 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
3821 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3822 btusb_check_needs_reset_resume(intf);
3825 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_RTL) &&
3826 (id->driver_info & BTUSB_REALTEK)) {
3827 hdev->setup = btrtl_setup_realtek;
3828 hdev->shutdown = btrtl_shutdown_realtek;
3829 hdev->cmd_timeout = btusb_rtl_cmd_timeout;
3831 /* Realtek devices lose their updated firmware over global
3832 * suspend that means host doesn't send SET_FEATURE
3833 * (DEVICE_REMOTE_WAKEUP)
3835 set_bit(BTUSB_WAKEUP_DISABLE, &data->flags);
3837 err = usb_autopm_get_interface(intf);
3842 if (id->driver_info & BTUSB_AMP) {
3843 /* AMP controllers do not support SCO packets */
3846 /* Interface orders are hardcoded in the specification */
3847 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1);
3848 data->isoc_ifnum = ifnum_base + 1;
3852 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3854 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
3855 if (!disable_scofix)
3856 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
3859 if (id->driver_info & BTUSB_BROKEN_ISOC)
3862 if (id->driver_info & BTUSB_DIGIANSWER) {
3863 data->cmdreq_type = USB_TYPE_VENDOR;
3864 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3867 if (id->driver_info & BTUSB_CSR) {
3868 struct usb_device *udev = data->udev;
3869 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
3871 /* Old firmware would otherwise execute USB reset */
3872 if (bcdDevice < 0x117)
3873 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3875 /* Fake CSR devices with broken commands */
3876 if (bcdDevice <= 0x100 || bcdDevice == 0x134)
3877 hdev->setup = btusb_setup_csr;
3879 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3882 if (id->driver_info & BTUSB_SNIFFER) {
3883 struct usb_device *udev = data->udev;
3885 /* New sniffer firmware has crippled HCI interface */
3886 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
3887 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
3890 if (id->driver_info & BTUSB_INTEL_BOOT) {
3891 /* A bug in the bootloader causes that interrupt interface is
3892 * only enabled after receiving SetInterface(0, AltSetting=0).
3894 err = usb_set_interface(data->udev, 0, 0);
3896 BT_ERR("failed to set interface 0, alt 0 %d", err);
3902 err = usb_driver_claim_interface(&btusb_driver,
3908 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && data->diag) {
3909 if (!usb_driver_claim_interface(&btusb_driver,
3911 __set_diag_interface(hdev);
3916 if (enable_autosuspend)
3917 usb_enable_autosuspend(data->udev);
3919 err = hci_register_dev(hdev);
3923 usb_set_intfdata(intf, data);
3928 if (data->reset_gpio)
3929 gpiod_put(data->reset_gpio);
3934 static void btusb_disconnect(struct usb_interface *intf)
3936 struct btusb_data *data = usb_get_intfdata(intf);
3937 struct hci_dev *hdev;
3939 BT_DBG("intf %p", intf);
3945 usb_set_intfdata(data->intf, NULL);
3948 usb_set_intfdata(data->isoc, NULL);
3951 usb_set_intfdata(data->diag, NULL);
3953 hci_unregister_dev(hdev);
3955 if (intf == data->intf) {
3957 usb_driver_release_interface(&btusb_driver, data->isoc);
3959 usb_driver_release_interface(&btusb_driver, data->diag);
3960 } else if (intf == data->isoc) {
3962 usb_driver_release_interface(&btusb_driver, data->diag);
3963 usb_driver_release_interface(&btusb_driver, data->intf);
3964 } else if (intf == data->diag) {
3965 usb_driver_release_interface(&btusb_driver, data->intf);
3967 usb_driver_release_interface(&btusb_driver, data->isoc);
3970 if (data->oob_wake_irq)
3971 device_init_wakeup(&data->udev->dev, false);
3973 if (data->reset_gpio)
3974 gpiod_put(data->reset_gpio);
3980 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
3982 struct btusb_data *data = usb_get_intfdata(intf);
3984 BT_DBG("intf %p", intf);
3986 if (data->suspend_count++)
3989 spin_lock_irq(&data->txlock);
3990 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
3991 set_bit(BTUSB_SUSPENDING, &data->flags);
3992 spin_unlock_irq(&data->txlock);
3994 spin_unlock_irq(&data->txlock);
3995 data->suspend_count--;
3999 cancel_work_sync(&data->work);
4001 btusb_stop_traffic(data);
4002 usb_kill_anchored_urbs(&data->tx_anchor);
4004 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) {
4005 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
4006 enable_irq_wake(data->oob_wake_irq);
4007 enable_irq(data->oob_wake_irq);
4010 /* For global suspend, Realtek devices lose the loaded fw
4011 * in them. But for autosuspend, firmware should remain.
4012 * Actually, it depends on whether the usb host sends
4013 * set feature (enable wakeup) or not.
4015 if (test_bit(BTUSB_WAKEUP_DISABLE, &data->flags)) {
4016 if (PMSG_IS_AUTO(message) &&
4017 device_can_wakeup(&data->udev->dev))
4018 data->udev->do_remote_wakeup = 1;
4019 else if (!PMSG_IS_AUTO(message))
4020 data->udev->reset_resume = 1;
4026 static void play_deferred(struct btusb_data *data)
4031 while ((urb = usb_get_from_anchor(&data->deferred))) {
4032 usb_anchor_urb(urb, &data->tx_anchor);
4034 err = usb_submit_urb(urb, GFP_ATOMIC);
4036 if (err != -EPERM && err != -ENODEV)
4037 BT_ERR("%s urb %p submission failed (%d)",
4038 data->hdev->name, urb, -err);
4039 kfree(urb->setup_packet);
4040 usb_unanchor_urb(urb);
4045 data->tx_in_flight++;
4049 /* Cleanup the rest deferred urbs. */
4050 while ((urb = usb_get_from_anchor(&data->deferred))) {
4051 kfree(urb->setup_packet);
4056 static int btusb_resume(struct usb_interface *intf)
4058 struct btusb_data *data = usb_get_intfdata(intf);
4059 struct hci_dev *hdev = data->hdev;
4062 BT_DBG("intf %p", intf);
4064 if (--data->suspend_count)
4067 /* Disable only if not already disabled (keep it balanced) */
4068 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
4069 disable_irq(data->oob_wake_irq);
4070 disable_irq_wake(data->oob_wake_irq);
4073 if (!test_bit(HCI_RUNNING, &hdev->flags))
4076 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
4077 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
4079 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
4084 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
4085 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
4087 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
4091 btusb_submit_bulk_urb(hdev, GFP_NOIO);
4094 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
4095 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
4096 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
4098 btusb_submit_isoc_urb(hdev, GFP_NOIO);
4101 spin_lock_irq(&data->txlock);
4102 play_deferred(data);
4103 clear_bit(BTUSB_SUSPENDING, &data->flags);
4104 spin_unlock_irq(&data->txlock);
4105 schedule_work(&data->work);
4110 usb_scuttle_anchored_urbs(&data->deferred);
4112 spin_lock_irq(&data->txlock);
4113 clear_bit(BTUSB_SUSPENDING, &data->flags);
4114 spin_unlock_irq(&data->txlock);
4120 static struct usb_driver btusb_driver = {
4122 .probe = btusb_probe,
4123 .disconnect = btusb_disconnect,
4125 .suspend = btusb_suspend,
4126 .resume = btusb_resume,
4128 .id_table = btusb_table,
4129 .supports_autosuspend = 1,
4130 .disable_hub_initiated_lpm = 1,
4133 module_usb_driver(btusb_driver);
4135 module_param(disable_scofix, bool, 0644);
4136 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
4138 module_param(force_scofix, bool, 0644);
4139 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
4141 module_param(enable_autosuspend, bool, 0644);
4142 MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default");
4144 module_param(reset, bool, 0644);
4145 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
4147 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
4148 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
4149 MODULE_VERSION(VERSION);
4150 MODULE_LICENSE("GPL");