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(0x13d3, 0x3491), .driver_info = BTUSB_QCA_ROME },
270 { USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME },
271 { USB_DEVICE(0x13d3, 0x3501), .driver_info = BTUSB_QCA_ROME },
273 /* Broadcom BCM2035 */
274 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
275 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
276 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
278 /* Broadcom BCM2045 */
279 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
280 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
282 /* IBM/Lenovo ThinkPad with Broadcom chip */
283 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
284 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
286 /* HP laptop with Broadcom chip */
287 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
289 /* Dell laptop with Broadcom chip */
290 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
292 /* Dell Wireless 370 and 410 devices */
293 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
294 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
296 /* Belkin F8T012 and F8T013 devices */
297 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
298 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
300 /* Asus WL-BTD202 device */
301 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
303 /* Kensington Bluetooth USB adapter */
304 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
306 /* RTX Telecom based adapters with buggy SCO support */
307 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
308 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
310 /* CONWISE Technology based adapters with buggy SCO support */
311 { USB_DEVICE(0x0e5e, 0x6622),
312 .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622},
314 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
315 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE },
317 /* Digianswer devices */
318 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
319 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
321 /* CSR BlueCore Bluetooth Sniffer */
322 { USB_DEVICE(0x0a12, 0x0002),
323 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
325 /* Frontline ComProbe Bluetooth Sniffer */
326 { USB_DEVICE(0x16d3, 0x0002),
327 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
329 /* Marvell Bluetooth devices */
330 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
331 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
332 { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL },
334 /* Intel Bluetooth devices */
335 { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_NEW },
336 { USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_NEW },
337 { USB_DEVICE(0x8087, 0x0029), .driver_info = BTUSB_INTEL_NEW },
338 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
339 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
340 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL },
341 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_NEW },
342 { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL },
343 { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_NEW },
345 /* Other Intel Bluetooth devices */
346 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
347 .driver_info = BTUSB_IGNORE },
349 /* Realtek Bluetooth devices */
350 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
351 .driver_info = BTUSB_REALTEK },
353 /* MediaTek Bluetooth devices */
354 { USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01),
355 .driver_info = BTUSB_MEDIATEK },
357 /* Additional Realtek 8723AE Bluetooth devices */
358 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
359 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
361 /* Additional Realtek 8723BE Bluetooth devices */
362 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
363 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
364 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
365 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
366 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
367 { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK },
369 /* Additional Realtek 8723BU Bluetooth devices */
370 { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK },
372 /* Additional Realtek 8723DE Bluetooth devices */
373 { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK },
374 { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK },
376 /* Additional Realtek 8821AE Bluetooth devices */
377 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
378 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
379 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
380 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
381 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
383 /* Additional Realtek 8822BE Bluetooth devices */
384 { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK },
385 { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK },
387 /* Additional Realtek 8822CE Bluetooth devices */
388 { USB_DEVICE(0x04ca, 0x4005), .driver_info = BTUSB_REALTEK },
390 /* Silicon Wave based devices */
391 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE },
393 { } /* Terminating entry */
396 /* The Bluetooth USB module build into some devices needs to be reset on resume,
397 * this is a problem with the platform (likely shutting off all power) not with
398 * the module itself. So we use a DMI list to match known broken platforms.
400 static const struct dmi_system_id btusb_needs_reset_resume_table[] = {
402 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */
404 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
405 DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"),
409 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */
411 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
412 DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"),
416 /* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */
418 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
419 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"),
425 #define BTUSB_MAX_ISOC_FRAMES 10
427 #define BTUSB_INTR_RUNNING 0
428 #define BTUSB_BULK_RUNNING 1
429 #define BTUSB_ISOC_RUNNING 2
430 #define BTUSB_SUSPENDING 3
431 #define BTUSB_DID_ISO_RESUME 4
432 #define BTUSB_BOOTLOADER 5
433 #define BTUSB_DOWNLOADING 6
434 #define BTUSB_FIRMWARE_LOADED 7
435 #define BTUSB_FIRMWARE_FAILED 8
436 #define BTUSB_BOOTING 9
437 #define BTUSB_DIAG_RUNNING 10
438 #define BTUSB_OOB_WAKE_ENABLED 11
439 #define BTUSB_HW_RESET_ACTIVE 12
440 #define BTUSB_TX_WAIT_VND_EVT 13
441 #define BTUSB_WAKEUP_DISABLE 14
444 struct hci_dev *hdev;
445 struct usb_device *udev;
446 struct usb_interface *intf;
447 struct usb_interface *isoc;
448 struct usb_interface *diag;
453 struct work_struct work;
454 struct work_struct waker;
456 struct usb_anchor deferred;
457 struct usb_anchor tx_anchor;
461 struct usb_anchor intr_anchor;
462 struct usb_anchor bulk_anchor;
463 struct usb_anchor isoc_anchor;
464 struct usb_anchor diag_anchor;
465 struct usb_anchor ctrl_anchor;
468 struct sk_buff *evt_skb;
469 struct sk_buff *acl_skb;
470 struct sk_buff *sco_skb;
472 struct usb_endpoint_descriptor *intr_ep;
473 struct usb_endpoint_descriptor *bulk_tx_ep;
474 struct usb_endpoint_descriptor *bulk_rx_ep;
475 struct usb_endpoint_descriptor *isoc_tx_ep;
476 struct usb_endpoint_descriptor *isoc_rx_ep;
477 struct usb_endpoint_descriptor *diag_tx_ep;
478 struct usb_endpoint_descriptor *diag_rx_ep;
480 struct gpio_desc *reset_gpio;
485 unsigned int sco_num;
489 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
490 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
492 int (*setup_on_usb)(struct hci_dev *hdev);
494 int oob_wake_irq; /* irq for out-of-band wake-on-bt */
495 unsigned cmd_timeout_cnt;
499 static void btusb_intel_cmd_timeout(struct hci_dev *hdev)
501 struct btusb_data *data = hci_get_drvdata(hdev);
502 struct gpio_desc *reset_gpio = data->reset_gpio;
504 if (++data->cmd_timeout_cnt < 5)
508 bt_dev_err(hdev, "No way to reset. Ignoring and continuing");
513 * Toggle the hard reset line if the platform provides one. The reset
514 * is going to yank the device off the USB and then replug. So doing
515 * once is enough. The cleanup is handled correctly on the way out
516 * (standard USB disconnect), and the new device is detected cleanly
517 * and bound to the driver again like it should be.
519 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
520 bt_dev_err(hdev, "last reset failed? Not resetting again");
524 bt_dev_err(hdev, "Initiating HW reset via gpio");
525 gpiod_set_value_cansleep(reset_gpio, 1);
527 gpiod_set_value_cansleep(reset_gpio, 0);
530 static void btusb_rtl_cmd_timeout(struct hci_dev *hdev)
532 struct btusb_data *data = hci_get_drvdata(hdev);
533 struct gpio_desc *reset_gpio = data->reset_gpio;
535 if (++data->cmd_timeout_cnt < 5)
539 bt_dev_err(hdev, "No gpio to reset Realtek device, ignoring");
543 /* Toggle the hard reset line. The Realtek device is going to
544 * yank itself off the USB and then replug. The cleanup is handled
545 * correctly on the way out (standard USB disconnect), and the new
546 * device is detected cleanly and bound to the driver again like
549 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
550 bt_dev_err(hdev, "last reset failed? Not resetting again");
554 bt_dev_err(hdev, "Reset Realtek device via gpio");
555 gpiod_set_value_cansleep(reset_gpio, 0);
557 gpiod_set_value_cansleep(reset_gpio, 1);
560 static inline void btusb_free_frags(struct btusb_data *data)
564 spin_lock_irqsave(&data->rxlock, flags);
566 dev_kfree_skb_irq(data->evt_skb);
567 data->evt_skb = NULL;
569 dev_kfree_skb_irq(data->acl_skb);
570 data->acl_skb = NULL;
572 dev_kfree_skb_irq(data->sco_skb);
573 data->sco_skb = NULL;
575 spin_unlock_irqrestore(&data->rxlock, flags);
578 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
584 spin_lock_irqsave(&data->rxlock, flags);
591 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
597 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
598 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE;
601 len = min_t(uint, hci_skb_expect(skb), count);
602 skb_put_data(skb, buffer, len);
606 hci_skb_expect(skb) -= len;
608 if (skb->len == HCI_EVENT_HDR_SIZE) {
609 /* Complete event header */
610 hci_skb_expect(skb) = hci_event_hdr(skb)->plen;
612 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
621 if (!hci_skb_expect(skb)) {
623 data->recv_event(data->hdev, skb);
629 spin_unlock_irqrestore(&data->rxlock, flags);
634 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
640 spin_lock_irqsave(&data->rxlock, flags);
647 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
653 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT;
654 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE;
657 len = min_t(uint, hci_skb_expect(skb), count);
658 skb_put_data(skb, buffer, len);
662 hci_skb_expect(skb) -= len;
664 if (skb->len == HCI_ACL_HDR_SIZE) {
665 __le16 dlen = hci_acl_hdr(skb)->dlen;
667 /* Complete ACL header */
668 hci_skb_expect(skb) = __le16_to_cpu(dlen);
670 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
679 if (!hci_skb_expect(skb)) {
681 hci_recv_frame(data->hdev, skb);
687 spin_unlock_irqrestore(&data->rxlock, flags);
692 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
698 spin_lock_irqsave(&data->rxlock, flags);
705 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
711 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT;
712 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE;
715 len = min_t(uint, hci_skb_expect(skb), count);
716 skb_put_data(skb, buffer, len);
720 hci_skb_expect(skb) -= len;
722 if (skb->len == HCI_SCO_HDR_SIZE) {
723 /* Complete SCO header */
724 hci_skb_expect(skb) = hci_sco_hdr(skb)->dlen;
726 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
735 if (!hci_skb_expect(skb)) {
737 hci_recv_frame(data->hdev, skb);
743 spin_unlock_irqrestore(&data->rxlock, flags);
748 static void btusb_intr_complete(struct urb *urb)
750 struct hci_dev *hdev = urb->context;
751 struct btusb_data *data = hci_get_drvdata(hdev);
754 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
757 if (!test_bit(HCI_RUNNING, &hdev->flags))
760 if (urb->status == 0) {
761 hdev->stat.byte_rx += urb->actual_length;
763 if (btusb_recv_intr(data, urb->transfer_buffer,
764 urb->actual_length) < 0) {
765 bt_dev_err(hdev, "corrupted event packet");
768 } else if (urb->status == -ENOENT) {
769 /* Avoid suspend failed when usb_kill_urb */
773 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
776 usb_mark_last_busy(data->udev);
777 usb_anchor_urb(urb, &data->intr_anchor);
779 err = usb_submit_urb(urb, GFP_ATOMIC);
781 /* -EPERM: urb is being killed;
782 * -ENODEV: device got disconnected
784 if (err != -EPERM && err != -ENODEV)
785 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
787 usb_unanchor_urb(urb);
791 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
793 struct btusb_data *data = hci_get_drvdata(hdev);
799 BT_DBG("%s", hdev->name);
804 urb = usb_alloc_urb(0, mem_flags);
808 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
810 buf = kmalloc(size, mem_flags);
816 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
818 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
819 btusb_intr_complete, hdev, data->intr_ep->bInterval);
821 urb->transfer_flags |= URB_FREE_BUFFER;
823 usb_anchor_urb(urb, &data->intr_anchor);
825 err = usb_submit_urb(urb, mem_flags);
827 if (err != -EPERM && err != -ENODEV)
828 bt_dev_err(hdev, "urb %p submission failed (%d)",
830 usb_unanchor_urb(urb);
838 static void btusb_bulk_complete(struct urb *urb)
840 struct hci_dev *hdev = urb->context;
841 struct btusb_data *data = hci_get_drvdata(hdev);
844 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
847 if (!test_bit(HCI_RUNNING, &hdev->flags))
850 if (urb->status == 0) {
851 hdev->stat.byte_rx += urb->actual_length;
853 if (data->recv_bulk(data, urb->transfer_buffer,
854 urb->actual_length) < 0) {
855 bt_dev_err(hdev, "corrupted ACL packet");
858 } else if (urb->status == -ENOENT) {
859 /* Avoid suspend failed when usb_kill_urb */
863 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
866 usb_anchor_urb(urb, &data->bulk_anchor);
867 usb_mark_last_busy(data->udev);
869 err = usb_submit_urb(urb, GFP_ATOMIC);
871 /* -EPERM: urb is being killed;
872 * -ENODEV: device got disconnected
874 if (err != -EPERM && err != -ENODEV)
875 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
877 usb_unanchor_urb(urb);
881 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
883 struct btusb_data *data = hci_get_drvdata(hdev);
887 int err, size = HCI_MAX_FRAME_SIZE;
889 BT_DBG("%s", hdev->name);
891 if (!data->bulk_rx_ep)
894 urb = usb_alloc_urb(0, mem_flags);
898 buf = kmalloc(size, mem_flags);
904 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
906 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
907 btusb_bulk_complete, hdev);
909 urb->transfer_flags |= URB_FREE_BUFFER;
911 usb_mark_last_busy(data->udev);
912 usb_anchor_urb(urb, &data->bulk_anchor);
914 err = usb_submit_urb(urb, mem_flags);
916 if (err != -EPERM && err != -ENODEV)
917 bt_dev_err(hdev, "urb %p submission failed (%d)",
919 usb_unanchor_urb(urb);
927 static void btusb_isoc_complete(struct urb *urb)
929 struct hci_dev *hdev = urb->context;
930 struct btusb_data *data = hci_get_drvdata(hdev);
933 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
936 if (!test_bit(HCI_RUNNING, &hdev->flags))
939 if (urb->status == 0) {
940 for (i = 0; i < urb->number_of_packets; i++) {
941 unsigned int offset = urb->iso_frame_desc[i].offset;
942 unsigned int length = urb->iso_frame_desc[i].actual_length;
944 if (urb->iso_frame_desc[i].status)
947 hdev->stat.byte_rx += length;
949 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
951 bt_dev_err(hdev, "corrupted SCO packet");
955 } else if (urb->status == -ENOENT) {
956 /* Avoid suspend failed when usb_kill_urb */
960 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
963 usb_anchor_urb(urb, &data->isoc_anchor);
965 err = usb_submit_urb(urb, GFP_ATOMIC);
967 /* -EPERM: urb is being killed;
968 * -ENODEV: device got disconnected
970 if (err != -EPERM && err != -ENODEV)
971 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
973 usb_unanchor_urb(urb);
977 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
981 BT_DBG("len %d mtu %d", len, mtu);
983 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
984 i++, offset += mtu, len -= mtu) {
985 urb->iso_frame_desc[i].offset = offset;
986 urb->iso_frame_desc[i].length = mtu;
989 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
990 urb->iso_frame_desc[i].offset = offset;
991 urb->iso_frame_desc[i].length = len;
995 urb->number_of_packets = i;
998 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
1000 struct btusb_data *data = hci_get_drvdata(hdev);
1006 BT_DBG("%s", hdev->name);
1008 if (!data->isoc_rx_ep)
1011 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
1015 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
1016 BTUSB_MAX_ISOC_FRAMES;
1018 buf = kmalloc(size, mem_flags);
1024 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
1026 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
1027 hdev, data->isoc_rx_ep->bInterval);
1029 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
1031 __fill_isoc_descriptor(urb, size,
1032 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
1034 usb_anchor_urb(urb, &data->isoc_anchor);
1036 err = usb_submit_urb(urb, mem_flags);
1038 if (err != -EPERM && err != -ENODEV)
1039 bt_dev_err(hdev, "urb %p submission failed (%d)",
1041 usb_unanchor_urb(urb);
1049 static void btusb_diag_complete(struct urb *urb)
1051 struct hci_dev *hdev = urb->context;
1052 struct btusb_data *data = hci_get_drvdata(hdev);
1055 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1056 urb->actual_length);
1058 if (urb->status == 0) {
1059 struct sk_buff *skb;
1061 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC);
1063 skb_put_data(skb, urb->transfer_buffer,
1064 urb->actual_length);
1065 hci_recv_diag(hdev, skb);
1067 } else if (urb->status == -ENOENT) {
1068 /* Avoid suspend failed when usb_kill_urb */
1072 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags))
1075 usb_anchor_urb(urb, &data->diag_anchor);
1076 usb_mark_last_busy(data->udev);
1078 err = usb_submit_urb(urb, GFP_ATOMIC);
1080 /* -EPERM: urb is being killed;
1081 * -ENODEV: device got disconnected
1083 if (err != -EPERM && err != -ENODEV)
1084 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1086 usb_unanchor_urb(urb);
1090 static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags)
1092 struct btusb_data *data = hci_get_drvdata(hdev);
1096 int err, size = HCI_MAX_FRAME_SIZE;
1098 BT_DBG("%s", hdev->name);
1100 if (!data->diag_rx_ep)
1103 urb = usb_alloc_urb(0, mem_flags);
1107 buf = kmalloc(size, mem_flags);
1113 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress);
1115 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1116 btusb_diag_complete, hdev);
1118 urb->transfer_flags |= URB_FREE_BUFFER;
1120 usb_mark_last_busy(data->udev);
1121 usb_anchor_urb(urb, &data->diag_anchor);
1123 err = usb_submit_urb(urb, mem_flags);
1125 if (err != -EPERM && err != -ENODEV)
1126 bt_dev_err(hdev, "urb %p submission failed (%d)",
1128 usb_unanchor_urb(urb);
1136 static void btusb_tx_complete(struct urb *urb)
1138 struct sk_buff *skb = urb->context;
1139 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1140 struct btusb_data *data = hci_get_drvdata(hdev);
1141 unsigned long flags;
1143 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1144 urb->actual_length);
1146 if (!test_bit(HCI_RUNNING, &hdev->flags))
1150 hdev->stat.byte_tx += urb->transfer_buffer_length;
1152 hdev->stat.err_tx++;
1155 spin_lock_irqsave(&data->txlock, flags);
1156 data->tx_in_flight--;
1157 spin_unlock_irqrestore(&data->txlock, flags);
1159 kfree(urb->setup_packet);
1164 static void btusb_isoc_tx_complete(struct urb *urb)
1166 struct sk_buff *skb = urb->context;
1167 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1169 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1170 urb->actual_length);
1172 if (!test_bit(HCI_RUNNING, &hdev->flags))
1176 hdev->stat.byte_tx += urb->transfer_buffer_length;
1178 hdev->stat.err_tx++;
1181 kfree(urb->setup_packet);
1186 static int btusb_open(struct hci_dev *hdev)
1188 struct btusb_data *data = hci_get_drvdata(hdev);
1191 BT_DBG("%s", hdev->name);
1193 err = usb_autopm_get_interface(data->intf);
1197 /* Patching USB firmware files prior to starting any URBs of HCI path
1198 * It is more safe to use USB bulk channel for downloading USB patch
1200 if (data->setup_on_usb) {
1201 err = data->setup_on_usb(hdev);
1206 data->intf->needs_remote_wakeup = 1;
1208 /* Disable device remote wakeup when host is suspended
1209 * For Realtek chips, global suspend without
1210 * SET_FEATURE (DEVICE_REMOTE_WAKEUP) can save more power in device.
1212 if (test_bit(BTUSB_WAKEUP_DISABLE, &data->flags))
1213 device_wakeup_disable(&data->udev->dev);
1215 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
1218 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
1222 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1224 usb_kill_anchored_urbs(&data->intr_anchor);
1228 set_bit(BTUSB_BULK_RUNNING, &data->flags);
1229 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1232 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL))
1233 set_bit(BTUSB_DIAG_RUNNING, &data->flags);
1237 usb_autopm_put_interface(data->intf);
1241 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1243 usb_autopm_put_interface(data->intf);
1247 static void btusb_stop_traffic(struct btusb_data *data)
1249 usb_kill_anchored_urbs(&data->intr_anchor);
1250 usb_kill_anchored_urbs(&data->bulk_anchor);
1251 usb_kill_anchored_urbs(&data->isoc_anchor);
1252 usb_kill_anchored_urbs(&data->diag_anchor);
1253 usb_kill_anchored_urbs(&data->ctrl_anchor);
1256 static int btusb_close(struct hci_dev *hdev)
1258 struct btusb_data *data = hci_get_drvdata(hdev);
1261 BT_DBG("%s", hdev->name);
1263 cancel_work_sync(&data->work);
1264 cancel_work_sync(&data->waker);
1266 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1267 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1268 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1269 clear_bit(BTUSB_DIAG_RUNNING, &data->flags);
1271 btusb_stop_traffic(data);
1272 btusb_free_frags(data);
1274 err = usb_autopm_get_interface(data->intf);
1278 data->intf->needs_remote_wakeup = 0;
1280 /* Enable remote wake up for auto-suspend */
1281 if (test_bit(BTUSB_WAKEUP_DISABLE, &data->flags))
1282 data->intf->needs_remote_wakeup = 1;
1284 usb_autopm_put_interface(data->intf);
1287 usb_scuttle_anchored_urbs(&data->deferred);
1291 static int btusb_flush(struct hci_dev *hdev)
1293 struct btusb_data *data = hci_get_drvdata(hdev);
1295 BT_DBG("%s", hdev->name);
1297 usb_kill_anchored_urbs(&data->tx_anchor);
1298 btusb_free_frags(data);
1303 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
1305 struct btusb_data *data = hci_get_drvdata(hdev);
1306 struct usb_ctrlrequest *dr;
1310 urb = usb_alloc_urb(0, GFP_KERNEL);
1312 return ERR_PTR(-ENOMEM);
1314 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
1317 return ERR_PTR(-ENOMEM);
1320 dr->bRequestType = data->cmdreq_type;
1321 dr->bRequest = data->cmdreq;
1324 dr->wLength = __cpu_to_le16(skb->len);
1326 pipe = usb_sndctrlpipe(data->udev, 0x00);
1328 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
1329 skb->data, skb->len, btusb_tx_complete, skb);
1331 skb->dev = (void *)hdev;
1336 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
1338 struct btusb_data *data = hci_get_drvdata(hdev);
1342 if (!data->bulk_tx_ep)
1343 return ERR_PTR(-ENODEV);
1345 urb = usb_alloc_urb(0, GFP_KERNEL);
1347 return ERR_PTR(-ENOMEM);
1349 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
1351 usb_fill_bulk_urb(urb, data->udev, pipe,
1352 skb->data, skb->len, btusb_tx_complete, skb);
1354 skb->dev = (void *)hdev;
1359 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
1361 struct btusb_data *data = hci_get_drvdata(hdev);
1365 if (!data->isoc_tx_ep)
1366 return ERR_PTR(-ENODEV);
1368 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
1370 return ERR_PTR(-ENOMEM);
1372 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
1374 usb_fill_int_urb(urb, data->udev, pipe,
1375 skb->data, skb->len, btusb_isoc_tx_complete,
1376 skb, data->isoc_tx_ep->bInterval);
1378 urb->transfer_flags = URB_ISO_ASAP;
1380 __fill_isoc_descriptor(urb, skb->len,
1381 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
1383 skb->dev = (void *)hdev;
1388 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
1390 struct btusb_data *data = hci_get_drvdata(hdev);
1393 usb_anchor_urb(urb, &data->tx_anchor);
1395 err = usb_submit_urb(urb, GFP_KERNEL);
1397 if (err != -EPERM && err != -ENODEV)
1398 bt_dev_err(hdev, "urb %p submission failed (%d)",
1400 kfree(urb->setup_packet);
1401 usb_unanchor_urb(urb);
1403 usb_mark_last_busy(data->udev);
1410 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
1412 struct btusb_data *data = hci_get_drvdata(hdev);
1413 unsigned long flags;
1416 spin_lock_irqsave(&data->txlock, flags);
1417 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
1419 data->tx_in_flight++;
1420 spin_unlock_irqrestore(&data->txlock, flags);
1423 return submit_tx_urb(hdev, urb);
1425 usb_anchor_urb(urb, &data->deferred);
1426 schedule_work(&data->waker);
1432 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
1436 BT_DBG("%s", hdev->name);
1438 switch (hci_skb_pkt_type(skb)) {
1439 case HCI_COMMAND_PKT:
1440 urb = alloc_ctrl_urb(hdev, skb);
1442 return PTR_ERR(urb);
1444 hdev->stat.cmd_tx++;
1445 return submit_or_queue_tx_urb(hdev, urb);
1447 case HCI_ACLDATA_PKT:
1448 urb = alloc_bulk_urb(hdev, skb);
1450 return PTR_ERR(urb);
1452 hdev->stat.acl_tx++;
1453 return submit_or_queue_tx_urb(hdev, urb);
1455 case HCI_SCODATA_PKT:
1456 if (hci_conn_num(hdev, SCO_LINK) < 1)
1459 urb = alloc_isoc_urb(hdev, skb);
1461 return PTR_ERR(urb);
1463 hdev->stat.sco_tx++;
1464 return submit_tx_urb(hdev, urb);
1470 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
1472 struct btusb_data *data = hci_get_drvdata(hdev);
1474 BT_DBG("%s evt %d", hdev->name, evt);
1476 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
1477 data->sco_num = hci_conn_num(hdev, SCO_LINK);
1478 schedule_work(&data->work);
1482 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
1484 struct btusb_data *data = hci_get_drvdata(hdev);
1485 struct usb_interface *intf = data->isoc;
1486 struct usb_endpoint_descriptor *ep_desc;
1492 err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting);
1494 bt_dev_err(hdev, "setting interface failed (%d)", -err);
1498 data->isoc_altsetting = altsetting;
1500 data->isoc_tx_ep = NULL;
1501 data->isoc_rx_ep = NULL;
1503 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1504 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1506 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
1507 data->isoc_tx_ep = ep_desc;
1511 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
1512 data->isoc_rx_ep = ep_desc;
1517 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
1518 bt_dev_err(hdev, "invalid SCO descriptors");
1525 static void btusb_work(struct work_struct *work)
1527 struct btusb_data *data = container_of(work, struct btusb_data, work);
1528 struct hci_dev *hdev = data->hdev;
1532 if (data->sco_num > 0) {
1533 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
1534 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
1536 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1537 usb_kill_anchored_urbs(&data->isoc_anchor);
1541 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
1544 if (hdev->voice_setting & 0x0020) {
1545 static const int alts[3] = { 2, 4, 5 };
1547 new_alts = alts[data->sco_num - 1];
1549 new_alts = data->sco_num;
1552 if (data->isoc_altsetting != new_alts) {
1553 unsigned long flags;
1555 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1556 usb_kill_anchored_urbs(&data->isoc_anchor);
1558 /* When isochronous alternate setting needs to be
1559 * changed, because SCO connection has been added
1560 * or removed, a packet fragment may be left in the
1561 * reassembling state. This could lead to wrongly
1562 * assembled fragments.
1564 * Clear outstanding fragment when selecting a new
1565 * alternate setting.
1567 spin_lock_irqsave(&data->rxlock, flags);
1568 kfree_skb(data->sco_skb);
1569 data->sco_skb = NULL;
1570 spin_unlock_irqrestore(&data->rxlock, flags);
1572 if (__set_isoc_interface(hdev, new_alts) < 0)
1576 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1577 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
1578 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1580 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
1583 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1584 usb_kill_anchored_urbs(&data->isoc_anchor);
1586 __set_isoc_interface(hdev, 0);
1587 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
1588 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
1592 static void btusb_waker(struct work_struct *work)
1594 struct btusb_data *data = container_of(work, struct btusb_data, waker);
1597 err = usb_autopm_get_interface(data->intf);
1601 usb_autopm_put_interface(data->intf);
1604 static int btusb_setup_bcm92035(struct hci_dev *hdev)
1606 struct sk_buff *skb;
1609 BT_DBG("%s", hdev->name);
1611 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
1613 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb));
1620 static int btusb_setup_csr(struct hci_dev *hdev)
1622 struct hci_rp_read_local_version *rp;
1623 struct sk_buff *skb;
1625 BT_DBG("%s", hdev->name);
1627 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1630 int err = PTR_ERR(skb);
1631 bt_dev_err(hdev, "CSR: Local version failed (%d)", err);
1635 if (skb->len != sizeof(struct hci_rp_read_local_version)) {
1636 bt_dev_err(hdev, "CSR: Local version length mismatch");
1641 rp = (struct hci_rp_read_local_version *)skb->data;
1643 /* Detect controllers which aren't real CSR ones. */
1644 if (le16_to_cpu(rp->manufacturer) != 10 ||
1645 le16_to_cpu(rp->lmp_subver) == 0x0c5c) {
1646 /* Clear the reset quirk since this is not an actual
1647 * early Bluetooth 1.1 device from CSR.
1649 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1651 /* These fake CSR controllers have all a broken
1652 * stored link key handling and so just disable it.
1654 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
1662 static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev,
1663 struct intel_version *ver)
1665 const struct firmware *fw;
1669 snprintf(fwname, sizeof(fwname),
1671 ver->hw_platform, ver->hw_variant, ver->hw_revision,
1672 ver->fw_variant, ver->fw_revision, ver->fw_build_num,
1673 ver->fw_build_ww, ver->fw_build_yy);
1675 ret = reject_firmware(&fw, fwname, &hdev->dev);
1677 if (ret == -EINVAL) {
1678 bt_dev_err(hdev, "Intel firmware file request failed (%d)",
1683 bt_dev_err(hdev, "failed to open Intel firmware file: %s (%d)",
1686 /* If the correct firmware patch file is not found, use the
1687 * default firmware patch file instead
1689 snprintf(fwname, sizeof(fwname), "/*(DEBLOBBED)*/",
1690 ver->hw_platform, ver->hw_variant);
1691 if (reject_firmware(&fw, fwname, &hdev->dev) < 0) {
1692 bt_dev_err(hdev, "failed to open default fw file: %s",
1698 bt_dev_info(hdev, "Intel Bluetooth firmware file: %s", fwname);
1703 static int btusb_setup_intel_patching(struct hci_dev *hdev,
1704 const struct firmware *fw,
1705 const u8 **fw_ptr, int *disable_patch)
1707 struct sk_buff *skb;
1708 struct hci_command_hdr *cmd;
1709 const u8 *cmd_param;
1710 struct hci_event_hdr *evt = NULL;
1711 const u8 *evt_param = NULL;
1712 int remain = fw->size - (*fw_ptr - fw->data);
1714 /* The first byte indicates the types of the patch command or event.
1715 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes
1716 * in the current firmware buffer doesn't start with 0x01 or
1717 * the size of remain buffer is smaller than HCI command header,
1718 * the firmware file is corrupted and it should stop the patching
1721 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) {
1722 bt_dev_err(hdev, "Intel fw corrupted: invalid cmd read");
1728 cmd = (struct hci_command_hdr *)(*fw_ptr);
1729 *fw_ptr += sizeof(*cmd);
1730 remain -= sizeof(*cmd);
1732 /* Ensure that the remain firmware data is long enough than the length
1733 * of command parameter. If not, the firmware file is corrupted.
1735 if (remain < cmd->plen) {
1736 bt_dev_err(hdev, "Intel fw corrupted: invalid cmd len");
1740 /* If there is a command that loads a patch in the firmware
1741 * file, then enable the patch upon success, otherwise just
1742 * disable the manufacturer mode, for example patch activation
1743 * is not required when the default firmware patch file is used
1744 * because there are no patch data to load.
1746 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e)
1749 cmd_param = *fw_ptr;
1750 *fw_ptr += cmd->plen;
1751 remain -= cmd->plen;
1753 /* This reads the expected events when the above command is sent to the
1754 * device. Some vendor commands expects more than one events, for
1755 * example command status event followed by vendor specific event.
1756 * For this case, it only keeps the last expected event. so the command
1757 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of
1758 * last expected event.
1760 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) {
1764 evt = (struct hci_event_hdr *)(*fw_ptr);
1765 *fw_ptr += sizeof(*evt);
1766 remain -= sizeof(*evt);
1768 if (remain < evt->plen) {
1769 bt_dev_err(hdev, "Intel fw corrupted: invalid evt len");
1773 evt_param = *fw_ptr;
1774 *fw_ptr += evt->plen;
1775 remain -= evt->plen;
1778 /* Every HCI commands in the firmware file has its correspond event.
1779 * If event is not found or remain is smaller than zero, the firmware
1780 * file is corrupted.
1782 if (!evt || !evt_param || remain < 0) {
1783 bt_dev_err(hdev, "Intel fw corrupted: invalid evt read");
1787 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen,
1788 cmd_param, evt->evt, HCI_INIT_TIMEOUT);
1790 bt_dev_err(hdev, "sending Intel patch command (0x%4.4x) failed (%ld)",
1791 cmd->opcode, PTR_ERR(skb));
1792 return PTR_ERR(skb);
1795 /* It ensures that the returned event matches the event data read from
1796 * the firmware file. At fist, it checks the length and then
1797 * the contents of the event.
1799 if (skb->len != evt->plen) {
1800 bt_dev_err(hdev, "mismatch event length (opcode 0x%4.4x)",
1801 le16_to_cpu(cmd->opcode));
1806 if (memcmp(skb->data, evt_param, evt->plen)) {
1807 bt_dev_err(hdev, "mismatch event parameter (opcode 0x%4.4x)",
1808 le16_to_cpu(cmd->opcode));
1817 static int btusb_setup_intel(struct hci_dev *hdev)
1819 struct sk_buff *skb;
1820 const struct firmware *fw;
1822 int disable_patch, err;
1823 struct intel_version ver;
1825 BT_DBG("%s", hdev->name);
1827 /* The controller has a bug with the first HCI command sent to it
1828 * returning number of completed commands as zero. This would stall the
1829 * command processing in the Bluetooth core.
1831 * As a workaround, send HCI Reset command first which will reset the
1832 * number of completed commands and allow normal command processing
1835 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1837 bt_dev_err(hdev, "sending initial HCI reset command failed (%ld)",
1839 return PTR_ERR(skb);
1843 /* Read Intel specific controller version first to allow selection of
1844 * which firmware file to load.
1846 * The returned information are hardware variant and revision plus
1847 * firmware variant, revision and build number.
1849 err = btintel_read_version(hdev, &ver);
1853 bt_dev_info(hdev, "read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
1854 ver.hw_platform, ver.hw_variant, ver.hw_revision,
1855 ver.fw_variant, ver.fw_revision, ver.fw_build_num,
1856 ver.fw_build_ww, ver.fw_build_yy, ver.fw_patch_num);
1858 /* fw_patch_num indicates the version of patch the device currently
1859 * have. If there is no patch data in the device, it is always 0x00.
1860 * So, if it is other than 0x00, no need to patch the device again.
1862 if (ver.fw_patch_num) {
1863 bt_dev_info(hdev, "Intel device is already patched. "
1864 "patch num: %02x", ver.fw_patch_num);
1868 /* Opens the firmware patch file based on the firmware version read
1869 * from the controller. If it fails to open the matching firmware
1870 * patch file, it tries to open the default firmware patch file.
1871 * If no patch file is found, allow the device to operate without
1874 fw = btusb_setup_intel_get_fw(hdev, &ver);
1879 /* Enable the manufacturer mode of the controller.
1880 * Only while this mode is enabled, the driver can download the
1881 * firmware patch data and configuration parameters.
1883 err = btintel_enter_mfg(hdev);
1885 release_firmware(fw);
1891 /* The firmware data file consists of list of Intel specific HCI
1892 * commands and its expected events. The first byte indicates the
1893 * type of the message, either HCI command or HCI event.
1895 * It reads the command and its expected event from the firmware file,
1896 * and send to the controller. Once __hci_cmd_sync_ev() returns,
1897 * the returned event is compared with the event read from the firmware
1898 * file and it will continue until all the messages are downloaded to
1901 * Once the firmware patching is completed successfully,
1902 * the manufacturer mode is disabled with reset and activating the
1905 * If the firmware patching fails, the manufacturer mode is
1906 * disabled with reset and deactivating the patch.
1908 * If the default patch file is used, no reset is done when disabling
1911 while (fw->size > fw_ptr - fw->data) {
1914 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr,
1917 goto exit_mfg_deactivate;
1920 release_firmware(fw);
1923 goto exit_mfg_disable;
1925 /* Patching completed successfully and disable the manufacturer mode
1926 * with reset and activate the downloaded firmware patches.
1928 err = btintel_exit_mfg(hdev, true, true);
1932 bt_dev_info(hdev, "Intel firmware patch completed and activated");
1937 /* Disable the manufacturer mode without reset */
1938 err = btintel_exit_mfg(hdev, false, false);
1942 bt_dev_info(hdev, "Intel firmware patch completed");
1946 exit_mfg_deactivate:
1947 release_firmware(fw);
1949 /* Patching failed. Disable the manufacturer mode with reset and
1950 * deactivate the downloaded firmware patches.
1952 err = btintel_exit_mfg(hdev, true, false);
1956 bt_dev_info(hdev, "Intel firmware patch completed and deactivated");
1959 /* Set the event mask for Intel specific vendor events. This enables
1960 * a few extra events that are useful during general operation.
1962 btintel_set_event_mask_mfg(hdev, false);
1964 btintel_check_bdaddr(hdev);
1968 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
1970 struct sk_buff *skb;
1971 struct hci_event_hdr *hdr;
1972 struct hci_ev_cmd_complete *evt;
1974 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL);
1978 hdr = skb_put(skb, sizeof(*hdr));
1979 hdr->evt = HCI_EV_CMD_COMPLETE;
1980 hdr->plen = sizeof(*evt) + 1;
1982 evt = skb_put(skb, sizeof(*evt));
1984 evt->opcode = cpu_to_le16(opcode);
1986 skb_put_u8(skb, 0x00);
1988 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
1990 return hci_recv_frame(hdev, skb);
1993 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
1996 /* When the device is in bootloader mode, then it can send
1997 * events via the bulk endpoint. These events are treated the
1998 * same way as the ones received from the interrupt endpoint.
2000 if (test_bit(BTUSB_BOOTLOADER, &data->flags))
2001 return btusb_recv_intr(data, buffer, count);
2003 return btusb_recv_bulk(data, buffer, count);
2006 static void btusb_intel_bootup(struct btusb_data *data, const void *ptr,
2009 const struct intel_bootup *evt = ptr;
2011 if (len != sizeof(*evt))
2014 if (test_and_clear_bit(BTUSB_BOOTING, &data->flags))
2015 wake_up_bit(&data->flags, BTUSB_BOOTING);
2018 static void btusb_intel_secure_send_result(struct btusb_data *data,
2019 const void *ptr, unsigned int len)
2021 const struct intel_secure_send_result *evt = ptr;
2023 if (len != sizeof(*evt))
2027 set_bit(BTUSB_FIRMWARE_FAILED, &data->flags);
2029 if (test_and_clear_bit(BTUSB_DOWNLOADING, &data->flags) &&
2030 test_bit(BTUSB_FIRMWARE_LOADED, &data->flags))
2031 wake_up_bit(&data->flags, BTUSB_DOWNLOADING);
2034 static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb)
2036 struct btusb_data *data = hci_get_drvdata(hdev);
2038 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
2039 struct hci_event_hdr *hdr = (void *)skb->data;
2041 if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff &&
2043 const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1;
2044 unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1;
2046 switch (skb->data[2]) {
2048 /* When switching to the operational firmware
2049 * the device sends a vendor specific event
2050 * indicating that the bootup completed.
2052 btusb_intel_bootup(data, ptr, len);
2055 /* When the firmware loading completes the
2056 * device sends out a vendor specific event
2057 * indicating the result of the firmware
2060 btusb_intel_secure_send_result(data, ptr, len);
2066 return hci_recv_frame(hdev, skb);
2069 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
2071 struct btusb_data *data = hci_get_drvdata(hdev);
2074 BT_DBG("%s", hdev->name);
2076 switch (hci_skb_pkt_type(skb)) {
2077 case HCI_COMMAND_PKT:
2078 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
2079 struct hci_command_hdr *cmd = (void *)skb->data;
2080 __u16 opcode = le16_to_cpu(cmd->opcode);
2082 /* When in bootloader mode and the command 0xfc09
2083 * is received, it needs to be send down the
2084 * bulk endpoint. So allocate a bulk URB instead.
2086 if (opcode == 0xfc09)
2087 urb = alloc_bulk_urb(hdev, skb);
2089 urb = alloc_ctrl_urb(hdev, skb);
2091 /* When the 0xfc01 command is issued to boot into
2092 * the operational firmware, it will actually not
2093 * send a command complete event. To keep the flow
2094 * control working inject that event here.
2096 if (opcode == 0xfc01)
2097 inject_cmd_complete(hdev, opcode);
2099 urb = alloc_ctrl_urb(hdev, skb);
2102 return PTR_ERR(urb);
2104 hdev->stat.cmd_tx++;
2105 return submit_or_queue_tx_urb(hdev, urb);
2107 case HCI_ACLDATA_PKT:
2108 urb = alloc_bulk_urb(hdev, skb);
2110 return PTR_ERR(urb);
2112 hdev->stat.acl_tx++;
2113 return submit_or_queue_tx_urb(hdev, urb);
2115 case HCI_SCODATA_PKT:
2116 if (hci_conn_num(hdev, SCO_LINK) < 1)
2119 urb = alloc_isoc_urb(hdev, skb);
2121 return PTR_ERR(urb);
2123 hdev->stat.sco_tx++;
2124 return submit_tx_urb(hdev, urb);
2130 static bool btusb_setup_intel_new_get_fw_name(struct intel_version *ver,
2131 struct intel_boot_params *params,
2132 char *fw_name, size_t len,
2135 switch (ver->hw_variant) {
2136 case 0x0b: /* SfP */
2137 case 0x0c: /* WsP */
2138 snprintf(fw_name, len, "intel/ibt-%u-%u.%s",
2139 le16_to_cpu(ver->hw_variant),
2140 le16_to_cpu(params->dev_revid),
2143 case 0x11: /* JfP */
2144 case 0x12: /* ThP */
2145 case 0x13: /* HrP */
2146 case 0x14: /* CcP */
2147 snprintf(fw_name, len, "intel/ibt-%u-%u-%u.%s",
2148 le16_to_cpu(ver->hw_variant),
2149 le16_to_cpu(ver->hw_revision),
2150 le16_to_cpu(ver->fw_revision),
2159 static int btusb_setup_intel_new(struct hci_dev *hdev)
2161 struct btusb_data *data = hci_get_drvdata(hdev);
2162 struct intel_version ver;
2163 struct intel_boot_params params;
2164 const struct firmware *fw;
2167 ktime_t calltime, delta, rettime;
2168 unsigned long long duration;
2171 BT_DBG("%s", hdev->name);
2173 /* Set the default boot parameter to 0x0 and it is updated to
2174 * SKU specific boot parameter after reading Intel_Write_Boot_Params
2175 * command while downloading the firmware.
2177 boot_param = 0x00000000;
2179 calltime = ktime_get();
2181 /* Read the Intel version information to determine if the device
2182 * is in bootloader mode or if it already has operational firmware
2185 err = btintel_read_version(hdev, &ver);
2189 /* The hardware platform number has a fixed value of 0x37 and
2190 * for now only accept this single value.
2192 if (ver.hw_platform != 0x37) {
2193 bt_dev_err(hdev, "Unsupported Intel hardware platform (%u)",
2198 /* Check for supported iBT hardware variants of this firmware
2201 * This check has been put in place to ensure correct forward
2202 * compatibility options when newer hardware variants come along.
2204 switch (ver.hw_variant) {
2205 case 0x0b: /* SfP */
2206 case 0x0c: /* WsP */
2207 case 0x11: /* JfP */
2208 case 0x12: /* ThP */
2209 case 0x13: /* HrP */
2210 case 0x14: /* CcP */
2213 bt_dev_err(hdev, "Unsupported Intel hardware variant (%u)",
2218 btintel_version_info(hdev, &ver);
2220 /* The firmware variant determines if the device is in bootloader
2221 * mode or is running operational firmware. The value 0x06 identifies
2222 * the bootloader and the value 0x23 identifies the operational
2225 * When the operational firmware is already present, then only
2226 * the check for valid Bluetooth device address is needed. This
2227 * determines if the device will be added as configured or
2228 * unconfigured controller.
2230 * It is not possible to use the Secure Boot Parameters in this
2231 * case since that command is only available in bootloader mode.
2233 if (ver.fw_variant == 0x23) {
2234 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2235 btintel_check_bdaddr(hdev);
2239 /* If the device is not in bootloader mode, then the only possible
2240 * choice is to return an error and abort the device initialization.
2242 if (ver.fw_variant != 0x06) {
2243 bt_dev_err(hdev, "Unsupported Intel firmware variant (%u)",
2248 /* Read the secure boot parameters to identify the operating
2249 * details of the bootloader.
2251 err = btintel_read_boot_params(hdev, ¶ms);
2255 /* It is required that every single firmware fragment is acknowledged
2256 * with a command complete event. If the boot parameters indicate
2257 * that this bootloader does not send them, then abort the setup.
2259 if (params.limited_cce != 0x00) {
2260 bt_dev_err(hdev, "Unsupported Intel firmware loading method (%u)",
2261 params.limited_cce);
2265 /* If the OTP has no valid Bluetooth device address, then there will
2266 * also be no valid address for the operational firmware.
2268 if (!bacmp(¶ms.otp_bdaddr, BDADDR_ANY)) {
2269 bt_dev_info(hdev, "No device address configured");
2270 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
2273 /* With this Intel bootloader only the hardware variant and device
2274 * revision information are used to select the right firmware for SfP
2277 * The firmware filename is ibt-<hw_variant>-<dev_revid>.sfi.
2279 * Currently the supported hardware variants are:
2280 * 11 (0x0b) for iBT3.0 (LnP/SfP)
2281 * 12 (0x0c) for iBT3.5 (WsP)
2283 * For ThP/JfP and for future SKU's, the FW name varies based on HW
2284 * variant, HW revision and FW revision, as these are dependent on CNVi
2285 * and RF Combination.
2287 * 17 (0x11) for iBT3.5 (JfP)
2288 * 18 (0x12) for iBT3.5 (ThP)
2290 * The firmware file name for these will be
2291 * ibt-<hw_variant>-<hw_revision>-<fw_revision>.sfi.
2294 err = btusb_setup_intel_new_get_fw_name(&ver, ¶ms, fwname,
2295 sizeof(fwname), "sfi");
2297 bt_dev_err(hdev, "Unsupported Intel firmware naming");
2301 err = reject_firmware(&fw, fwname, &hdev->dev);
2303 bt_dev_err(hdev, "Failed to load Intel firmware file (%d)", err);
2307 bt_dev_info(hdev, "Found device firmware: %s", fwname);
2309 /* Save the DDC file name for later use to apply once the firmware
2310 * downloading is done.
2312 err = btusb_setup_intel_new_get_fw_name(&ver, ¶ms, fwname,
2313 sizeof(fwname), "ddc");
2315 bt_dev_err(hdev, "Unsupported Intel firmware naming");
2319 if (fw->size < 644) {
2320 bt_dev_err(hdev, "Invalid size of firmware file (%zu)",
2326 set_bit(BTUSB_DOWNLOADING, &data->flags);
2328 /* Start firmware downloading and get boot parameter */
2329 err = btintel_download_firmware(hdev, fw, &boot_param);
2333 set_bit(BTUSB_FIRMWARE_LOADED, &data->flags);
2335 bt_dev_info(hdev, "Waiting for firmware download to complete");
2337 /* Before switching the device into operational mode and with that
2338 * booting the loaded firmware, wait for the bootloader notification
2339 * that all fragments have been successfully received.
2341 * When the event processing receives the notification, then the
2342 * BTUSB_DOWNLOADING flag will be cleared.
2344 * The firmware loading should not take longer than 5 seconds
2345 * and thus just timeout if that happens and fail the setup
2348 err = wait_on_bit_timeout(&data->flags, BTUSB_DOWNLOADING,
2350 msecs_to_jiffies(5000));
2351 if (err == -EINTR) {
2352 bt_dev_err(hdev, "Firmware loading interrupted");
2357 bt_dev_err(hdev, "Firmware loading timeout");
2362 if (test_bit(BTUSB_FIRMWARE_FAILED, &data->flags)) {
2363 bt_dev_err(hdev, "Firmware loading failed");
2368 rettime = ktime_get();
2369 delta = ktime_sub(rettime, calltime);
2370 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2372 bt_dev_info(hdev, "Firmware loaded in %llu usecs", duration);
2375 release_firmware(fw);
2380 calltime = ktime_get();
2382 set_bit(BTUSB_BOOTING, &data->flags);
2384 err = btintel_send_intel_reset(hdev, boot_param);
2388 /* The bootloader will not indicate when the device is ready. This
2389 * is done by the operational firmware sending bootup notification.
2391 * Booting into operational firmware should not take longer than
2392 * 1 second. However if that happens, then just fail the setup
2393 * since something went wrong.
2395 bt_dev_info(hdev, "Waiting for device to boot");
2397 err = wait_on_bit_timeout(&data->flags, BTUSB_BOOTING,
2399 msecs_to_jiffies(1000));
2401 if (err == -EINTR) {
2402 bt_dev_err(hdev, "Device boot interrupted");
2407 bt_dev_err(hdev, "Device boot timeout");
2411 rettime = ktime_get();
2412 delta = ktime_sub(rettime, calltime);
2413 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2415 bt_dev_info(hdev, "Device booted in %llu usecs", duration);
2417 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2419 /* Once the device is running in operational mode, it needs to apply
2420 * the device configuration (DDC) parameters.
2422 * The device can work without DDC parameters, so even if it fails
2423 * to load the file, no need to fail the setup.
2425 btintel_load_ddc_config(hdev, fwname);
2427 /* Set the event mask for Intel specific vendor events. This enables
2428 * a few extra events that are useful during general operation. It
2429 * does not enable any debugging related events.
2431 * The device will function correctly without these events enabled
2432 * and thus no need to fail the setup.
2434 btintel_set_event_mask(hdev, false);
2439 static int btusb_shutdown_intel(struct hci_dev *hdev)
2441 struct sk_buff *skb;
2444 /* In the shutdown sequence where Bluetooth is turned off followed
2445 * by WiFi being turned off, turning WiFi back on causes issue with
2446 * the RF calibration.
2448 * To ensure that any RF activity has been stopped, issue HCI Reset
2449 * command to clear all ongoing activity including advertising,
2452 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
2455 bt_dev_err(hdev, "HCI reset during shutdown failed");
2460 /* Some platforms have an issue with BT LED when the interface is
2461 * down or BT radio is turned off, which takes 5 seconds to BT LED
2462 * goes off. This command turns off the BT LED immediately.
2464 skb = __hci_cmd_sync(hdev, 0xfc3f, 0, NULL, HCI_INIT_TIMEOUT);
2467 bt_dev_err(hdev, "turning off Intel device LED failed");
2475 static int btusb_shutdown_intel_new(struct hci_dev *hdev)
2477 struct sk_buff *skb;
2479 /* Send HCI Reset to the controller to stop any BT activity which
2480 * were triggered. This will help to save power and maintain the
2481 * sync b/w Host and controller
2483 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
2485 bt_dev_err(hdev, "HCI reset during shutdown failed");
2486 return PTR_ERR(skb);
2493 #ifdef CONFIG_BT_HCIBTUSB_MTK
2495 #define FIRMWARE_MT7663 "/*(DEBLOBBED)*/"
2496 #define FIRMWARE_MT7668 "/*(DEBLOBBED)*/"
2498 #define HCI_WMT_MAX_EVENT_SIZE 64
2501 BTMTK_WMT_PATCH_DWNLD = 0x1,
2502 BTMTK_WMT_FUNC_CTRL = 0x6,
2503 BTMTK_WMT_RST = 0x7,
2504 BTMTK_WMT_SEMAPHORE = 0x17,
2509 BTMTK_WMT_PATCH_UNDONE,
2510 BTMTK_WMT_PATCH_DONE,
2511 BTMTK_WMT_ON_UNDONE,
2513 BTMTK_WMT_ON_PROGRESS,
2516 struct btmtk_wmt_hdr {
2523 struct btmtk_hci_wmt_cmd {
2524 struct btmtk_wmt_hdr hdr;
2528 struct btmtk_hci_wmt_evt {
2529 struct hci_event_hdr hhdr;
2530 struct btmtk_wmt_hdr whdr;
2533 struct btmtk_hci_wmt_evt_funcc {
2534 struct btmtk_hci_wmt_evt hwhdr;
2538 struct btmtk_tci_sleep {
2541 __le16 host_duration;
2543 u8 time_compensation;
2546 struct btmtk_hci_wmt_params {
2554 static void btusb_mtk_wmt_recv(struct urb *urb)
2556 struct hci_dev *hdev = urb->context;
2557 struct btusb_data *data = hci_get_drvdata(hdev);
2558 struct hci_event_hdr *hdr;
2559 struct sk_buff *skb;
2562 if (urb->status == 0 && urb->actual_length > 0) {
2563 hdev->stat.byte_rx += urb->actual_length;
2565 /* WMT event shouldn't be fragmented and the size should be
2566 * less than HCI_WMT_MAX_EVENT_SIZE.
2568 skb = bt_skb_alloc(HCI_WMT_MAX_EVENT_SIZE, GFP_ATOMIC);
2570 hdev->stat.err_rx++;
2571 kfree(urb->setup_packet);
2575 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
2576 skb_put_data(skb, urb->transfer_buffer, urb->actual_length);
2578 hdr = (void *)skb->data;
2579 /* Fix up the vendor event id with 0xff for vendor specific
2580 * instead of 0xe4 so that event send via monitoring socket can
2581 * be parsed properly.
2585 /* When someone waits for the WMT event, the skb is being cloned
2586 * and being processed the events from there then.
2588 if (test_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags)) {
2589 data->evt_skb = skb_clone(skb, GFP_ATOMIC);
2590 if (!data->evt_skb) {
2592 kfree(urb->setup_packet);
2597 err = hci_recv_frame(hdev, skb);
2599 kfree_skb(data->evt_skb);
2600 data->evt_skb = NULL;
2601 kfree(urb->setup_packet);
2605 if (test_and_clear_bit(BTUSB_TX_WAIT_VND_EVT,
2607 /* Barrier to sync with other CPUs */
2608 smp_mb__after_atomic();
2609 wake_up_bit(&data->flags,
2610 BTUSB_TX_WAIT_VND_EVT);
2612 kfree(urb->setup_packet);
2614 } else if (urb->status == -ENOENT) {
2615 /* Avoid suspend failed when usb_kill_urb */
2619 usb_mark_last_busy(data->udev);
2621 /* The URB complete handler is still called with urb->actual_length = 0
2622 * when the event is not available, so we should keep re-submitting
2623 * URB until WMT event returns, Also, It's necessary to wait some time
2624 * between the two consecutive control URBs to relax the target device
2625 * to generate the event. Otherwise, the WMT event cannot return from
2626 * the device successfully.
2630 usb_anchor_urb(urb, &data->ctrl_anchor);
2631 err = usb_submit_urb(urb, GFP_ATOMIC);
2633 kfree(urb->setup_packet);
2634 /* -EPERM: urb is being killed;
2635 * -ENODEV: device got disconnected
2637 if (err != -EPERM && err != -ENODEV)
2638 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
2640 usb_unanchor_urb(urb);
2644 static int btusb_mtk_submit_wmt_recv_urb(struct hci_dev *hdev)
2646 struct btusb_data *data = hci_get_drvdata(hdev);
2647 struct usb_ctrlrequest *dr;
2653 urb = usb_alloc_urb(0, GFP_KERNEL);
2657 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
2663 dr->bRequestType = USB_TYPE_VENDOR | USB_DIR_IN;
2665 dr->wIndex = cpu_to_le16(0);
2666 dr->wValue = cpu_to_le16(48);
2667 dr->wLength = cpu_to_le16(size);
2669 buf = kmalloc(size, GFP_KERNEL);
2676 pipe = usb_rcvctrlpipe(data->udev, 0);
2678 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
2679 buf, size, btusb_mtk_wmt_recv, hdev);
2681 urb->transfer_flags |= URB_FREE_BUFFER;
2683 usb_anchor_urb(urb, &data->ctrl_anchor);
2684 err = usb_submit_urb(urb, GFP_KERNEL);
2686 if (err != -EPERM && err != -ENODEV)
2687 bt_dev_err(hdev, "urb %p submission failed (%d)",
2689 usb_unanchor_urb(urb);
2697 static int btusb_mtk_hci_wmt_sync(struct hci_dev *hdev,
2698 struct btmtk_hci_wmt_params *wmt_params)
2700 struct btusb_data *data = hci_get_drvdata(hdev);
2701 struct btmtk_hci_wmt_evt_funcc *wmt_evt_funcc;
2702 u32 hlen, status = BTMTK_WMT_INVALID;
2703 struct btmtk_hci_wmt_evt *wmt_evt;
2704 struct btmtk_hci_wmt_cmd wc;
2705 struct btmtk_wmt_hdr *hdr;
2708 /* Send the WMT command and wait until the WMT event returns */
2709 hlen = sizeof(*hdr) + wmt_params->dlen;
2713 hdr = (struct btmtk_wmt_hdr *)&wc;
2715 hdr->op = wmt_params->op;
2716 hdr->dlen = cpu_to_le16(wmt_params->dlen + 1);
2717 hdr->flag = wmt_params->flag;
2718 memcpy(wc.data, wmt_params->data, wmt_params->dlen);
2720 set_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2722 err = __hci_cmd_send(hdev, 0xfc6f, hlen, &wc);
2725 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2729 /* Submit control IN URB on demand to process the WMT event */
2730 err = btusb_mtk_submit_wmt_recv_urb(hdev);
2734 /* The vendor specific WMT commands are all answered by a vendor
2735 * specific event and will have the Command Status or Command
2736 * Complete as with usual HCI command flow control.
2738 * After sending the command, wait for BTUSB_TX_WAIT_VND_EVT
2739 * state to be cleared. The driver specific event receive routine
2740 * will clear that state and with that indicate completion of the
2743 err = wait_on_bit_timeout(&data->flags, BTUSB_TX_WAIT_VND_EVT,
2744 TASK_INTERRUPTIBLE, HCI_INIT_TIMEOUT);
2745 if (err == -EINTR) {
2746 bt_dev_err(hdev, "Execution of wmt command interrupted");
2747 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2752 bt_dev_err(hdev, "Execution of wmt command timed out");
2753 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2757 /* Parse and handle the return WMT event */
2758 wmt_evt = (struct btmtk_hci_wmt_evt *)data->evt_skb->data;
2759 if (wmt_evt->whdr.op != hdr->op) {
2760 bt_dev_err(hdev, "Wrong op received %d expected %d",
2761 wmt_evt->whdr.op, hdr->op);
2766 switch (wmt_evt->whdr.op) {
2767 case BTMTK_WMT_SEMAPHORE:
2768 if (wmt_evt->whdr.flag == 2)
2769 status = BTMTK_WMT_PATCH_UNDONE;
2771 status = BTMTK_WMT_PATCH_DONE;
2773 case BTMTK_WMT_FUNC_CTRL:
2774 wmt_evt_funcc = (struct btmtk_hci_wmt_evt_funcc *)wmt_evt;
2775 if (be16_to_cpu(wmt_evt_funcc->status) == 0x404)
2776 status = BTMTK_WMT_ON_DONE;
2777 else if (be16_to_cpu(wmt_evt_funcc->status) == 0x420)
2778 status = BTMTK_WMT_ON_PROGRESS;
2780 status = BTMTK_WMT_ON_UNDONE;
2784 if (wmt_params->status)
2785 *wmt_params->status = status;
2788 kfree_skb(data->evt_skb);
2789 data->evt_skb = NULL;
2794 static int btusb_mtk_setup_firmware(struct hci_dev *hdev, const char *fwname)
2796 struct btmtk_hci_wmt_params wmt_params;
2797 const struct firmware *fw;
2803 err = reject_firmware(&fw, fwname, &hdev->dev);
2805 bt_dev_err(hdev, "Failed to load firmware file (%d)", err);
2809 /* Power on data RAM the firmware relies on. */
2811 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
2812 wmt_params.flag = 3;
2813 wmt_params.dlen = sizeof(param);
2814 wmt_params.data = ¶m;
2815 wmt_params.status = NULL;
2817 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2819 bt_dev_err(hdev, "Failed to power on data RAM (%d)", err);
2820 goto err_release_fw;
2826 /* The size of patch header is 30 bytes, should be skip */
2829 goto err_release_fw;
2836 wmt_params.op = BTMTK_WMT_PATCH_DWNLD;
2837 wmt_params.status = NULL;
2839 while (fw_size > 0) {
2840 dlen = min_t(int, 250, fw_size);
2842 /* Tell deivice the position in sequence */
2843 if (fw_size - dlen <= 0)
2845 else if (fw_size < fw->size - 30)
2848 wmt_params.flag = flag;
2849 wmt_params.dlen = dlen;
2850 wmt_params.data = fw_ptr;
2852 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2854 bt_dev_err(hdev, "Failed to send wmt patch dwnld (%d)",
2856 goto err_release_fw;
2863 wmt_params.op = BTMTK_WMT_RST;
2864 wmt_params.flag = 4;
2865 wmt_params.dlen = 0;
2866 wmt_params.data = NULL;
2867 wmt_params.status = NULL;
2869 /* Activate funciton the firmware providing to */
2870 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2872 bt_dev_err(hdev, "Failed to send wmt rst (%d)", err);
2873 goto err_release_fw;
2876 /* Wait a few moments for firmware activation done */
2877 usleep_range(10000, 12000);
2880 release_firmware(fw);
2885 static int btusb_mtk_func_query(struct hci_dev *hdev)
2887 struct btmtk_hci_wmt_params wmt_params;
2891 /* Query whether the function is enabled */
2892 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
2893 wmt_params.flag = 4;
2894 wmt_params.dlen = sizeof(param);
2895 wmt_params.data = ¶m;
2896 wmt_params.status = &status;
2898 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2900 bt_dev_err(hdev, "Failed to query function status (%d)", err);
2907 static int btusb_mtk_reg_read(struct btusb_data *data, u32 reg, u32 *val)
2909 int pipe, err, size = sizeof(u32);
2912 buf = kzalloc(size, GFP_KERNEL);
2916 pipe = usb_rcvctrlpipe(data->udev, 0);
2917 err = usb_control_msg(data->udev, pipe, 0x63,
2918 USB_TYPE_VENDOR | USB_DIR_IN,
2919 reg >> 16, reg & 0xffff,
2920 buf, size, USB_CTRL_SET_TIMEOUT);
2924 *val = get_unaligned_le32(buf);
2932 static int btusb_mtk_id_get(struct btusb_data *data, u32 *id)
2934 return btusb_mtk_reg_read(data, 0x80000008, id);
2937 static int btusb_mtk_setup(struct hci_dev *hdev)
2939 struct btusb_data *data = hci_get_drvdata(hdev);
2940 struct btmtk_hci_wmt_params wmt_params;
2941 ktime_t calltime, delta, rettime;
2942 struct btmtk_tci_sleep tci_sleep;
2943 unsigned long long duration;
2944 struct sk_buff *skb;
2950 calltime = ktime_get();
2952 err = btusb_mtk_id_get(data, &dev_id);
2954 bt_dev_err(hdev, "Failed to get device id (%d)", err);
2960 fwname = FIRMWARE_MT7663;
2963 fwname = FIRMWARE_MT7668;
2966 bt_dev_err(hdev, "Unsupported support hardware variant (%08x)",
2971 /* Query whether the firmware is already download */
2972 wmt_params.op = BTMTK_WMT_SEMAPHORE;
2973 wmt_params.flag = 1;
2974 wmt_params.dlen = 0;
2975 wmt_params.data = NULL;
2976 wmt_params.status = &status;
2978 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2980 bt_dev_err(hdev, "Failed to query firmware status (%d)", err);
2984 if (status == BTMTK_WMT_PATCH_DONE) {
2985 bt_dev_info(hdev, "firmware already downloaded");
2986 goto ignore_setup_fw;
2989 /* Setup a firmware which the device definitely requires */
2990 err = btusb_mtk_setup_firmware(hdev, fwname);
2995 err = readx_poll_timeout(btusb_mtk_func_query, hdev, status,
2996 status < 0 || status != BTMTK_WMT_ON_PROGRESS,
2998 /* -ETIMEDOUT happens */
3002 /* The other errors happen in btusb_mtk_func_query */
3006 if (status == BTMTK_WMT_ON_DONE) {
3007 bt_dev_info(hdev, "function already on");
3008 goto ignore_func_on;
3011 /* Enable Bluetooth protocol */
3013 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3014 wmt_params.flag = 0;
3015 wmt_params.dlen = sizeof(param);
3016 wmt_params.data = ¶m;
3017 wmt_params.status = NULL;
3019 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3021 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3026 /* Apply the low power environment setup */
3027 tci_sleep.mode = 0x5;
3028 tci_sleep.duration = cpu_to_le16(0x640);
3029 tci_sleep.host_duration = cpu_to_le16(0x640);
3030 tci_sleep.host_wakeup_pin = 0;
3031 tci_sleep.time_compensation = 0;
3033 skb = __hci_cmd_sync(hdev, 0xfc7a, sizeof(tci_sleep), &tci_sleep,
3037 bt_dev_err(hdev, "Failed to apply low power setting (%d)", err);
3042 rettime = ktime_get();
3043 delta = ktime_sub(rettime, calltime);
3044 duration = (unsigned long long)ktime_to_ns(delta) >> 10;
3046 bt_dev_info(hdev, "Device setup in %llu usecs", duration);
3051 static int btusb_mtk_shutdown(struct hci_dev *hdev)
3053 struct btmtk_hci_wmt_params wmt_params;
3057 /* Disable the device */
3058 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3059 wmt_params.flag = 0;
3060 wmt_params.dlen = sizeof(param);
3061 wmt_params.data = ¶m;
3062 wmt_params.status = NULL;
3064 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3066 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3077 /* Configure an out-of-band gpio as wake-up pin, if specified in device tree */
3078 static int marvell_config_oob_wake(struct hci_dev *hdev)
3080 struct sk_buff *skb;
3081 struct btusb_data *data = hci_get_drvdata(hdev);
3082 struct device *dev = &data->udev->dev;
3083 u16 pin, gap, opcode;
3087 /* Move on if no wakeup pin specified */
3088 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) ||
3089 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap))
3092 /* Vendor specific command to configure a GPIO as wake-up pin */
3093 opcode = hci_opcode_pack(0x3F, 0x59);
3094 cmd[0] = opcode & 0xFF;
3095 cmd[1] = opcode >> 8;
3096 cmd[2] = 2; /* length of parameters that follow */
3098 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */
3100 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
3102 bt_dev_err(hdev, "%s: No memory\n", __func__);
3106 skb_put_data(skb, cmd, sizeof(cmd));
3107 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT;
3109 ret = btusb_send_frame(hdev, skb);
3111 bt_dev_err(hdev, "%s: configuration failed\n", __func__);
3120 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
3121 const bdaddr_t *bdaddr)
3123 struct sk_buff *skb;
3128 buf[1] = sizeof(bdaddr_t);
3129 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
3131 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
3134 bt_dev_err(hdev, "changing Marvell device address failed (%ld)",
3143 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
3144 const bdaddr_t *bdaddr)
3146 struct sk_buff *skb;
3153 buf[3] = sizeof(bdaddr_t);
3154 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
3156 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
3159 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
3167 #define QCA_DFU_PACKET_LEN 4096
3169 #define QCA_GET_TARGET_VERSION 0x09
3170 #define QCA_CHECK_STATUS 0x05
3171 #define QCA_DFU_DOWNLOAD 0x01
3173 #define QCA_SYSCFG_UPDATED 0x40
3174 #define QCA_PATCH_UPDATED 0x80
3175 #define QCA_DFU_TIMEOUT 3000
3177 struct qca_version {
3179 __le32 patch_version;
3185 struct qca_rampatch_version {
3187 __le16 patch_version;
3190 struct qca_device_info {
3192 u8 rampatch_hdr; /* length of header in rampatch */
3193 u8 nvm_hdr; /* length of header in NVM */
3194 u8 ver_offset; /* offset of version structure in rampatch */
3197 static const struct qca_device_info qca_devices_table[] = {
3198 { 0x00000100, 20, 4, 10 }, /* Rome 1.0 */
3199 { 0x00000101, 20, 4, 10 }, /* Rome 1.1 */
3200 { 0x00000200, 28, 4, 18 }, /* Rome 2.0 */
3201 { 0x00000201, 28, 4, 18 }, /* Rome 2.1 */
3202 { 0x00000300, 28, 4, 18 }, /* Rome 3.0 */
3203 { 0x00000302, 28, 4, 18 }, /* Rome 3.2 */
3206 static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request,
3207 void *data, u16 size)
3212 buf = kmalloc(size, GFP_KERNEL);
3216 /* Found some of USB hosts have IOT issues with ours so that we should
3217 * not wait until HCI layer is ready.
3219 pipe = usb_rcvctrlpipe(udev, 0);
3220 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
3221 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
3223 dev_err(&udev->dev, "Failed to access otp area (%d)", err);
3227 memcpy(data, buf, size);
3235 static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
3236 const struct firmware *firmware,
3239 struct btusb_data *btdata = hci_get_drvdata(hdev);
3240 struct usb_device *udev = btdata->udev;
3241 size_t count, size, sent = 0;
3245 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
3249 count = firmware->size;
3251 size = min_t(size_t, count, hdr_size);
3252 memcpy(buf, firmware->data, size);
3254 /* USB patches should go down to controller through USB path
3255 * because binary format fits to go down through USB channel.
3256 * USB control path is for patching headers and USB bulk is for
3259 pipe = usb_sndctrlpipe(udev, 0);
3260 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
3261 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
3263 bt_dev_err(hdev, "Failed to send headers (%d)", err);
3270 /* ep2 need time to switch from function acl to function dfu,
3271 * so we add 20ms delay here.
3276 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
3278 memcpy(buf, firmware->data + sent, size);
3280 pipe = usb_sndbulkpipe(udev, 0x02);
3281 err = usb_bulk_msg(udev, pipe, buf, size, &len,
3284 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)",
3285 sent, firmware->size, err);
3290 bt_dev_err(hdev, "Failed to get bulk buffer");
3304 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
3305 struct qca_version *ver,
3306 const struct qca_device_info *info)
3308 struct qca_rampatch_version *rver;
3309 const struct firmware *fw;
3310 u32 ver_rom, ver_patch;
3311 u16 rver_rom, rver_patch;
3315 ver_rom = le32_to_cpu(ver->rom_version);
3316 ver_patch = le32_to_cpu(ver->patch_version);
3318 snprintf(fwname, sizeof(fwname), "/*(DEBLOBBED)*/", ver_rom);
3320 err = reject_firmware(&fw, fwname, &hdev->dev);
3322 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)",
3327 bt_dev_info(hdev, "using rampatch file: %s", fwname);
3329 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
3330 rver_rom = le16_to_cpu(rver->rom_version);
3331 rver_patch = le16_to_cpu(rver->patch_version);
3333 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, "
3334 "firmware rome 0x%x build 0x%x",
3335 rver_rom, rver_patch, ver_rom, ver_patch);
3337 if (rver_rom != ver_rom || rver_patch <= ver_patch) {
3338 bt_dev_err(hdev, "rampatch file version did not match with firmware");
3343 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
3346 release_firmware(fw);
3351 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
3352 struct qca_version *ver,
3353 const struct qca_device_info *info)
3355 const struct firmware *fw;
3359 snprintf(fwname, sizeof(fwname), "/*(DEBLOBBED)*/",
3360 le32_to_cpu(ver->rom_version));
3362 err = reject_firmware(&fw, fwname, &hdev->dev);
3364 bt_dev_err(hdev, "failed to request NVM file: %s (%d)",
3369 bt_dev_info(hdev, "using NVM file: %s", fwname);
3371 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
3373 release_firmware(fw);
3378 /* identify the ROM version and check whether patches are needed */
3379 static bool btusb_qca_need_patch(struct usb_device *udev)
3381 struct qca_version ver;
3383 if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3386 /* only low ROM versions need patches */
3387 return !(le32_to_cpu(ver.rom_version) & ~0xffffU);
3390 static int btusb_setup_qca(struct hci_dev *hdev)
3392 struct btusb_data *btdata = hci_get_drvdata(hdev);
3393 struct usb_device *udev = btdata->udev;
3394 const struct qca_device_info *info = NULL;
3395 struct qca_version ver;
3400 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3405 ver_rom = le32_to_cpu(ver.rom_version);
3406 /* Don't care about high ROM versions */
3407 if (ver_rom & ~0xffffU)
3410 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
3411 if (ver_rom == qca_devices_table[i].rom_version)
3412 info = &qca_devices_table[i];
3415 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom);
3419 err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status,
3424 if (!(status & QCA_PATCH_UPDATED)) {
3425 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
3430 if (!(status & QCA_SYSCFG_UPDATED)) {
3431 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
3439 #ifdef CONFIG_BT_HCIBTUSB_BCM
3440 static inline int __set_diag_interface(struct hci_dev *hdev)
3442 struct btusb_data *data = hci_get_drvdata(hdev);
3443 struct usb_interface *intf = data->diag;
3449 data->diag_tx_ep = NULL;
3450 data->diag_rx_ep = NULL;
3452 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
3453 struct usb_endpoint_descriptor *ep_desc;
3455 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
3457 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
3458 data->diag_tx_ep = ep_desc;
3462 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
3463 data->diag_rx_ep = ep_desc;
3468 if (!data->diag_tx_ep || !data->diag_rx_ep) {
3469 bt_dev_err(hdev, "invalid diagnostic descriptors");
3476 static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable)
3478 struct btusb_data *data = hci_get_drvdata(hdev);
3479 struct sk_buff *skb;
3483 if (!data->diag_tx_ep)
3484 return ERR_PTR(-ENODEV);
3486 urb = usb_alloc_urb(0, GFP_KERNEL);
3488 return ERR_PTR(-ENOMEM);
3490 skb = bt_skb_alloc(2, GFP_KERNEL);
3493 return ERR_PTR(-ENOMEM);
3496 skb_put_u8(skb, 0xf0);
3497 skb_put_u8(skb, enable);
3499 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress);
3501 usb_fill_bulk_urb(urb, data->udev, pipe,
3502 skb->data, skb->len, btusb_tx_complete, skb);
3504 skb->dev = (void *)hdev;
3509 static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable)
3511 struct btusb_data *data = hci_get_drvdata(hdev);
3517 if (!test_bit(HCI_RUNNING, &hdev->flags))
3520 urb = alloc_diag_urb(hdev, enable);
3522 return PTR_ERR(urb);
3524 return submit_or_queue_tx_urb(hdev, urb);
3529 static irqreturn_t btusb_oob_wake_handler(int irq, void *priv)
3531 struct btusb_data *data = priv;
3533 pm_wakeup_event(&data->udev->dev, 0);
3536 /* Disable only if not already disabled (keep it balanced) */
3537 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
3538 disable_irq_nosync(irq);
3539 disable_irq_wake(irq);
3544 static const struct of_device_id btusb_match_table[] = {
3545 { .compatible = "usb1286,204e" },
3546 { .compatible = "usbcf3,e300" }, /* QCA6174A */
3547 { .compatible = "usb4ca,301a" }, /* QCA6174A (Lite-On) */
3550 MODULE_DEVICE_TABLE(of, btusb_match_table);
3552 /* Use an oob wakeup pin? */
3553 static int btusb_config_oob_wake(struct hci_dev *hdev)
3555 struct btusb_data *data = hci_get_drvdata(hdev);
3556 struct device *dev = &data->udev->dev;
3559 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
3561 if (!of_match_device(btusb_match_table, dev))
3564 /* Move on if no IRQ specified */
3565 irq = of_irq_get_byname(dev->of_node, "wakeup");
3567 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__);
3571 irq_set_status_flags(irq, IRQ_NOAUTOEN);
3572 ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler,
3573 0, "OOB Wake-on-BT", data);
3575 bt_dev_err(hdev, "%s: IRQ request failed", __func__);
3579 ret = device_init_wakeup(dev, true);
3581 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__);
3585 data->oob_wake_irq = irq;
3586 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq);
3591 static void btusb_check_needs_reset_resume(struct usb_interface *intf)
3593 if (dmi_check_system(btusb_needs_reset_resume_table))
3594 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
3597 static int btusb_probe(struct usb_interface *intf,
3598 const struct usb_device_id *id)
3600 struct usb_endpoint_descriptor *ep_desc;
3601 struct gpio_desc *reset_gpio;
3602 struct btusb_data *data;
3603 struct hci_dev *hdev;
3604 unsigned ifnum_base;
3607 BT_DBG("intf %p id %p", intf, id);
3609 /* interface numbers are hardcoded in the spec */
3610 if (intf->cur_altsetting->desc.bInterfaceNumber != 0) {
3611 if (!(id->driver_info & BTUSB_IFNUM_2))
3613 if (intf->cur_altsetting->desc.bInterfaceNumber != 2)
3617 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber;
3619 if (!id->driver_info) {
3620 const struct usb_device_id *match;
3622 match = usb_match_id(intf, blacklist_table);
3627 if (id->driver_info == BTUSB_IGNORE)
3630 if (id->driver_info & BTUSB_ATH3012) {
3631 struct usb_device *udev = interface_to_usbdev(intf);
3633 /* Old firmware would otherwise let ath3k driver load
3634 * patch and sysconfig files
3636 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 &&
3637 !btusb_qca_need_patch(udev))
3641 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
3645 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
3646 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
3648 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
3649 data->intr_ep = ep_desc;
3653 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
3654 data->bulk_tx_ep = ep_desc;
3658 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
3659 data->bulk_rx_ep = ep_desc;
3664 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
3667 if (id->driver_info & BTUSB_AMP) {
3668 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
3669 data->cmdreq = 0x2b;
3671 data->cmdreq_type = USB_TYPE_CLASS;
3672 data->cmdreq = 0x00;
3675 data->udev = interface_to_usbdev(intf);
3678 INIT_WORK(&data->work, btusb_work);
3679 INIT_WORK(&data->waker, btusb_waker);
3680 init_usb_anchor(&data->deferred);
3681 init_usb_anchor(&data->tx_anchor);
3682 spin_lock_init(&data->txlock);
3684 init_usb_anchor(&data->intr_anchor);
3685 init_usb_anchor(&data->bulk_anchor);
3686 init_usb_anchor(&data->isoc_anchor);
3687 init_usb_anchor(&data->diag_anchor);
3688 init_usb_anchor(&data->ctrl_anchor);
3689 spin_lock_init(&data->rxlock);
3691 if (id->driver_info & BTUSB_INTEL_NEW) {
3692 data->recv_event = btusb_recv_event_intel;
3693 data->recv_bulk = btusb_recv_bulk_intel;
3694 set_bit(BTUSB_BOOTLOADER, &data->flags);
3696 data->recv_event = hci_recv_frame;
3697 data->recv_bulk = btusb_recv_bulk;
3700 hdev = hci_alloc_dev();
3704 hdev->bus = HCI_USB;
3705 hci_set_drvdata(hdev, data);
3707 if (id->driver_info & BTUSB_AMP)
3708 hdev->dev_type = HCI_AMP;
3710 hdev->dev_type = HCI_PRIMARY;
3714 SET_HCIDEV_DEV(hdev, &intf->dev);
3716 reset_gpio = gpiod_get_optional(&data->udev->dev, "reset",
3718 if (IS_ERR(reset_gpio)) {
3719 err = PTR_ERR(reset_gpio);
3721 } else if (reset_gpio) {
3722 data->reset_gpio = reset_gpio;
3725 hdev->open = btusb_open;
3726 hdev->close = btusb_close;
3727 hdev->flush = btusb_flush;
3728 hdev->send = btusb_send_frame;
3729 hdev->notify = btusb_notify;
3732 err = btusb_config_oob_wake(hdev);
3736 /* Marvell devices may need a specific chip configuration */
3737 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) {
3738 err = marvell_config_oob_wake(hdev);
3743 if (id->driver_info & BTUSB_CW6622)
3744 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
3746 if (id->driver_info & BTUSB_BCM2045)
3747 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
3749 if (id->driver_info & BTUSB_BCM92035)
3750 hdev->setup = btusb_setup_bcm92035;
3752 #ifdef CONFIG_BT_HCIBTUSB_BCM
3753 if (id->driver_info & BTUSB_BCM_PATCHRAM) {
3754 hdev->manufacturer = 15;
3755 hdev->setup = btbcm_setup_patchram;
3756 hdev->set_diag = btusb_bcm_set_diag;
3757 hdev->set_bdaddr = btbcm_set_bdaddr;
3759 /* Broadcom LM_DIAG Interface numbers are hardcoded */
3760 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
3763 if (id->driver_info & BTUSB_BCM_APPLE) {
3764 hdev->manufacturer = 15;
3765 hdev->setup = btbcm_setup_apple;
3766 hdev->set_diag = btusb_bcm_set_diag;
3768 /* Broadcom LM_DIAG Interface numbers are hardcoded */
3769 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
3773 if (id->driver_info & BTUSB_INTEL) {
3774 hdev->manufacturer = 2;
3775 hdev->setup = btusb_setup_intel;
3776 hdev->shutdown = btusb_shutdown_intel;
3777 hdev->set_diag = btintel_set_diag_mfg;
3778 hdev->set_bdaddr = btintel_set_bdaddr;
3779 hdev->cmd_timeout = btusb_intel_cmd_timeout;
3780 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
3781 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3782 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks);
3785 if (id->driver_info & BTUSB_INTEL_NEW) {
3786 hdev->manufacturer = 2;
3787 hdev->send = btusb_send_frame_intel;
3788 hdev->setup = btusb_setup_intel_new;
3789 hdev->shutdown = btusb_shutdown_intel_new;
3790 hdev->hw_error = btintel_hw_error;
3791 hdev->set_diag = btintel_set_diag;
3792 hdev->set_bdaddr = btintel_set_bdaddr;
3793 hdev->cmd_timeout = btusb_intel_cmd_timeout;
3794 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
3795 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3796 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks);
3799 if (id->driver_info & BTUSB_MARVELL)
3800 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
3802 #ifdef CONFIG_BT_HCIBTUSB_MTK
3803 if (id->driver_info & BTUSB_MEDIATEK) {
3804 hdev->setup = btusb_mtk_setup;
3805 hdev->shutdown = btusb_mtk_shutdown;
3806 hdev->manufacturer = 70;
3807 set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
3811 if (id->driver_info & BTUSB_SWAVE) {
3812 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
3813 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
3816 if (id->driver_info & BTUSB_INTEL_BOOT) {
3817 hdev->manufacturer = 2;
3818 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
3821 if (id->driver_info & BTUSB_ATH3012) {
3822 data->setup_on_usb = btusb_setup_qca;
3823 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
3824 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3825 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
3828 if (id->driver_info & BTUSB_QCA_ROME) {
3829 data->setup_on_usb = btusb_setup_qca;
3830 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
3831 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3832 btusb_check_needs_reset_resume(intf);
3835 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_RTL) &&
3836 (id->driver_info & BTUSB_REALTEK)) {
3837 hdev->setup = btrtl_setup_realtek;
3838 hdev->shutdown = btrtl_shutdown_realtek;
3839 hdev->cmd_timeout = btusb_rtl_cmd_timeout;
3841 /* Realtek devices lose their updated firmware over global
3842 * suspend that means host doesn't send SET_FEATURE
3843 * (DEVICE_REMOTE_WAKEUP)
3845 set_bit(BTUSB_WAKEUP_DISABLE, &data->flags);
3847 err = usb_autopm_get_interface(intf);
3852 if (id->driver_info & BTUSB_AMP) {
3853 /* AMP controllers do not support SCO packets */
3856 /* Interface orders are hardcoded in the specification */
3857 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1);
3858 data->isoc_ifnum = ifnum_base + 1;
3862 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3864 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
3865 if (!disable_scofix)
3866 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
3869 if (id->driver_info & BTUSB_BROKEN_ISOC)
3872 if (id->driver_info & BTUSB_DIGIANSWER) {
3873 data->cmdreq_type = USB_TYPE_VENDOR;
3874 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3877 if (id->driver_info & BTUSB_CSR) {
3878 struct usb_device *udev = data->udev;
3879 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
3881 /* Old firmware would otherwise execute USB reset */
3882 if (bcdDevice < 0x117)
3883 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3885 /* Fake CSR devices with broken commands */
3886 if (bcdDevice <= 0x100 || bcdDevice == 0x134)
3887 hdev->setup = btusb_setup_csr;
3889 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3892 if (id->driver_info & BTUSB_SNIFFER) {
3893 struct usb_device *udev = data->udev;
3895 /* New sniffer firmware has crippled HCI interface */
3896 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
3897 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
3900 if (id->driver_info & BTUSB_INTEL_BOOT) {
3901 /* A bug in the bootloader causes that interrupt interface is
3902 * only enabled after receiving SetInterface(0, AltSetting=0).
3904 err = usb_set_interface(data->udev, 0, 0);
3906 BT_ERR("failed to set interface 0, alt 0 %d", err);
3912 err = usb_driver_claim_interface(&btusb_driver,
3918 #ifdef CONFIG_BT_HCIBTUSB_BCM
3920 if (!usb_driver_claim_interface(&btusb_driver,
3922 __set_diag_interface(hdev);
3928 if (enable_autosuspend)
3929 usb_enable_autosuspend(data->udev);
3931 err = hci_register_dev(hdev);
3935 usb_set_intfdata(intf, data);
3940 if (data->reset_gpio)
3941 gpiod_put(data->reset_gpio);
3946 static void btusb_disconnect(struct usb_interface *intf)
3948 struct btusb_data *data = usb_get_intfdata(intf);
3949 struct hci_dev *hdev;
3951 BT_DBG("intf %p", intf);
3957 usb_set_intfdata(data->intf, NULL);
3960 usb_set_intfdata(data->isoc, NULL);
3963 usb_set_intfdata(data->diag, NULL);
3965 hci_unregister_dev(hdev);
3967 if (intf == data->intf) {
3969 usb_driver_release_interface(&btusb_driver, data->isoc);
3971 usb_driver_release_interface(&btusb_driver, data->diag);
3972 } else if (intf == data->isoc) {
3974 usb_driver_release_interface(&btusb_driver, data->diag);
3975 usb_driver_release_interface(&btusb_driver, data->intf);
3976 } else if (intf == data->diag) {
3977 usb_driver_release_interface(&btusb_driver, data->intf);
3979 usb_driver_release_interface(&btusb_driver, data->isoc);
3982 if (data->oob_wake_irq)
3983 device_init_wakeup(&data->udev->dev, false);
3985 if (data->reset_gpio)
3986 gpiod_put(data->reset_gpio);
3992 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
3994 struct btusb_data *data = usb_get_intfdata(intf);
3996 BT_DBG("intf %p", intf);
3998 if (data->suspend_count++)
4001 spin_lock_irq(&data->txlock);
4002 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
4003 set_bit(BTUSB_SUSPENDING, &data->flags);
4004 spin_unlock_irq(&data->txlock);
4006 spin_unlock_irq(&data->txlock);
4007 data->suspend_count--;
4011 cancel_work_sync(&data->work);
4013 btusb_stop_traffic(data);
4014 usb_kill_anchored_urbs(&data->tx_anchor);
4016 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) {
4017 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
4018 enable_irq_wake(data->oob_wake_irq);
4019 enable_irq(data->oob_wake_irq);
4022 /* For global suspend, Realtek devices lose the loaded fw
4023 * in them. But for autosuspend, firmware should remain.
4024 * Actually, it depends on whether the usb host sends
4025 * set feature (enable wakeup) or not.
4027 if (test_bit(BTUSB_WAKEUP_DISABLE, &data->flags)) {
4028 if (PMSG_IS_AUTO(message) &&
4029 device_can_wakeup(&data->udev->dev))
4030 data->udev->do_remote_wakeup = 1;
4031 else if (!PMSG_IS_AUTO(message))
4032 data->udev->reset_resume = 1;
4038 static void play_deferred(struct btusb_data *data)
4043 while ((urb = usb_get_from_anchor(&data->deferred))) {
4044 usb_anchor_urb(urb, &data->tx_anchor);
4046 err = usb_submit_urb(urb, GFP_ATOMIC);
4048 if (err != -EPERM && err != -ENODEV)
4049 BT_ERR("%s urb %p submission failed (%d)",
4050 data->hdev->name, urb, -err);
4051 kfree(urb->setup_packet);
4052 usb_unanchor_urb(urb);
4057 data->tx_in_flight++;
4061 /* Cleanup the rest deferred urbs. */
4062 while ((urb = usb_get_from_anchor(&data->deferred))) {
4063 kfree(urb->setup_packet);
4068 static int btusb_resume(struct usb_interface *intf)
4070 struct btusb_data *data = usb_get_intfdata(intf);
4071 struct hci_dev *hdev = data->hdev;
4074 BT_DBG("intf %p", intf);
4076 if (--data->suspend_count)
4079 /* Disable only if not already disabled (keep it balanced) */
4080 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
4081 disable_irq(data->oob_wake_irq);
4082 disable_irq_wake(data->oob_wake_irq);
4085 if (!test_bit(HCI_RUNNING, &hdev->flags))
4088 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
4089 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
4091 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
4096 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
4097 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
4099 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
4103 btusb_submit_bulk_urb(hdev, GFP_NOIO);
4106 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
4107 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
4108 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
4110 btusb_submit_isoc_urb(hdev, GFP_NOIO);
4113 spin_lock_irq(&data->txlock);
4114 play_deferred(data);
4115 clear_bit(BTUSB_SUSPENDING, &data->flags);
4116 spin_unlock_irq(&data->txlock);
4117 schedule_work(&data->work);
4122 usb_scuttle_anchored_urbs(&data->deferred);
4124 spin_lock_irq(&data->txlock);
4125 clear_bit(BTUSB_SUSPENDING, &data->flags);
4126 spin_unlock_irq(&data->txlock);
4132 static struct usb_driver btusb_driver = {
4134 .probe = btusb_probe,
4135 .disconnect = btusb_disconnect,
4137 .suspend = btusb_suspend,
4138 .resume = btusb_resume,
4140 .id_table = btusb_table,
4141 .supports_autosuspend = 1,
4142 .disable_hub_initiated_lpm = 1,
4145 module_usb_driver(btusb_driver);
4147 module_param(disable_scofix, bool, 0644);
4148 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
4150 module_param(force_scofix, bool, 0644);
4151 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
4153 module_param(enable_autosuspend, bool, 0644);
4154 MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default");
4156 module_param(reset, bool, 0644);
4157 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
4159 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
4160 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
4161 MODULE_VERSION(VERSION);
4162 MODULE_LICENSE("GPL");