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 /* Silicon Wave based devices */
388 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE },
390 { } /* Terminating entry */
393 /* The Bluetooth USB module build into some devices needs to be reset on resume,
394 * this is a problem with the platform (likely shutting off all power) not with
395 * the module itself. So we use a DMI list to match known broken platforms.
397 static const struct dmi_system_id btusb_needs_reset_resume_table[] = {
399 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */
401 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
402 DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"),
406 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */
408 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
409 DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"),
413 /* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */
415 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
416 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"),
422 #define BTUSB_MAX_ISOC_FRAMES 10
424 #define BTUSB_INTR_RUNNING 0
425 #define BTUSB_BULK_RUNNING 1
426 #define BTUSB_ISOC_RUNNING 2
427 #define BTUSB_SUSPENDING 3
428 #define BTUSB_DID_ISO_RESUME 4
429 #define BTUSB_BOOTLOADER 5
430 #define BTUSB_DOWNLOADING 6
431 #define BTUSB_FIRMWARE_LOADED 7
432 #define BTUSB_FIRMWARE_FAILED 8
433 #define BTUSB_BOOTING 9
434 #define BTUSB_DIAG_RUNNING 10
435 #define BTUSB_OOB_WAKE_ENABLED 11
436 #define BTUSB_HW_RESET_ACTIVE 12
437 #define BTUSB_TX_WAIT_VND_EVT 13
440 struct hci_dev *hdev;
441 struct usb_device *udev;
442 struct usb_interface *intf;
443 struct usb_interface *isoc;
444 struct usb_interface *diag;
449 struct work_struct work;
450 struct work_struct waker;
452 struct usb_anchor deferred;
453 struct usb_anchor tx_anchor;
457 struct usb_anchor intr_anchor;
458 struct usb_anchor bulk_anchor;
459 struct usb_anchor isoc_anchor;
460 struct usb_anchor diag_anchor;
461 struct usb_anchor ctrl_anchor;
464 struct sk_buff *evt_skb;
465 struct sk_buff *acl_skb;
466 struct sk_buff *sco_skb;
468 struct usb_endpoint_descriptor *intr_ep;
469 struct usb_endpoint_descriptor *bulk_tx_ep;
470 struct usb_endpoint_descriptor *bulk_rx_ep;
471 struct usb_endpoint_descriptor *isoc_tx_ep;
472 struct usb_endpoint_descriptor *isoc_rx_ep;
473 struct usb_endpoint_descriptor *diag_tx_ep;
474 struct usb_endpoint_descriptor *diag_rx_ep;
476 struct gpio_desc *reset_gpio;
481 unsigned int sco_num;
485 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
486 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
488 int (*setup_on_usb)(struct hci_dev *hdev);
490 int oob_wake_irq; /* irq for out-of-band wake-on-bt */
491 unsigned cmd_timeout_cnt;
495 static void btusb_intel_cmd_timeout(struct hci_dev *hdev)
497 struct btusb_data *data = hci_get_drvdata(hdev);
498 struct gpio_desc *reset_gpio = data->reset_gpio;
500 if (++data->cmd_timeout_cnt < 5)
504 bt_dev_err(hdev, "No way to reset. Ignoring and continuing");
509 * Toggle the hard reset line if the platform provides one. The reset
510 * is going to yank the device off the USB and then replug. So doing
511 * once is enough. The cleanup is handled correctly on the way out
512 * (standard USB disconnect), and the new device is detected cleanly
513 * and bound to the driver again like it should be.
515 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
516 bt_dev_err(hdev, "last reset failed? Not resetting again");
520 bt_dev_err(hdev, "Initiating HW reset via gpio");
521 gpiod_set_value_cansleep(reset_gpio, 1);
523 gpiod_set_value_cansleep(reset_gpio, 0);
526 static inline void btusb_free_frags(struct btusb_data *data)
530 spin_lock_irqsave(&data->rxlock, flags);
532 kfree_skb(data->evt_skb);
533 data->evt_skb = NULL;
535 kfree_skb(data->acl_skb);
536 data->acl_skb = NULL;
538 kfree_skb(data->sco_skb);
539 data->sco_skb = NULL;
541 spin_unlock_irqrestore(&data->rxlock, flags);
544 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
550 spin_lock_irqsave(&data->rxlock, flags);
557 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
563 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
564 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE;
567 len = min_t(uint, hci_skb_expect(skb), count);
568 skb_put_data(skb, buffer, len);
572 hci_skb_expect(skb) -= len;
574 if (skb->len == HCI_EVENT_HDR_SIZE) {
575 /* Complete event header */
576 hci_skb_expect(skb) = hci_event_hdr(skb)->plen;
578 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
587 if (!hci_skb_expect(skb)) {
589 data->recv_event(data->hdev, skb);
595 spin_unlock_irqrestore(&data->rxlock, flags);
600 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
606 spin_lock_irqsave(&data->rxlock, flags);
613 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
619 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT;
620 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE;
623 len = min_t(uint, hci_skb_expect(skb), count);
624 skb_put_data(skb, buffer, len);
628 hci_skb_expect(skb) -= len;
630 if (skb->len == HCI_ACL_HDR_SIZE) {
631 __le16 dlen = hci_acl_hdr(skb)->dlen;
633 /* Complete ACL header */
634 hci_skb_expect(skb) = __le16_to_cpu(dlen);
636 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
645 if (!hci_skb_expect(skb)) {
647 hci_recv_frame(data->hdev, skb);
653 spin_unlock_irqrestore(&data->rxlock, flags);
658 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
664 spin_lock_irqsave(&data->rxlock, flags);
671 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
677 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT;
678 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE;
681 len = min_t(uint, hci_skb_expect(skb), count);
682 skb_put_data(skb, buffer, len);
686 hci_skb_expect(skb) -= len;
688 if (skb->len == HCI_SCO_HDR_SIZE) {
689 /* Complete SCO header */
690 hci_skb_expect(skb) = hci_sco_hdr(skb)->dlen;
692 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
701 if (!hci_skb_expect(skb)) {
703 hci_recv_frame(data->hdev, skb);
709 spin_unlock_irqrestore(&data->rxlock, flags);
714 static void btusb_intr_complete(struct urb *urb)
716 struct hci_dev *hdev = urb->context;
717 struct btusb_data *data = hci_get_drvdata(hdev);
720 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
723 if (!test_bit(HCI_RUNNING, &hdev->flags))
726 if (urb->status == 0) {
727 hdev->stat.byte_rx += urb->actual_length;
729 if (btusb_recv_intr(data, urb->transfer_buffer,
730 urb->actual_length) < 0) {
731 bt_dev_err(hdev, "corrupted event packet");
734 } else if (urb->status == -ENOENT) {
735 /* Avoid suspend failed when usb_kill_urb */
739 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
742 usb_mark_last_busy(data->udev);
743 usb_anchor_urb(urb, &data->intr_anchor);
745 err = usb_submit_urb(urb, GFP_ATOMIC);
747 /* -EPERM: urb is being killed;
748 * -ENODEV: device got disconnected
750 if (err != -EPERM && err != -ENODEV)
751 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
753 usb_unanchor_urb(urb);
757 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
759 struct btusb_data *data = hci_get_drvdata(hdev);
765 BT_DBG("%s", hdev->name);
770 urb = usb_alloc_urb(0, mem_flags);
774 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
776 buf = kmalloc(size, mem_flags);
782 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
784 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
785 btusb_intr_complete, hdev, data->intr_ep->bInterval);
787 urb->transfer_flags |= URB_FREE_BUFFER;
789 usb_anchor_urb(urb, &data->intr_anchor);
791 err = usb_submit_urb(urb, mem_flags);
793 if (err != -EPERM && err != -ENODEV)
794 bt_dev_err(hdev, "urb %p submission failed (%d)",
796 usb_unanchor_urb(urb);
804 static void btusb_bulk_complete(struct urb *urb)
806 struct hci_dev *hdev = urb->context;
807 struct btusb_data *data = hci_get_drvdata(hdev);
810 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
813 if (!test_bit(HCI_RUNNING, &hdev->flags))
816 if (urb->status == 0) {
817 hdev->stat.byte_rx += urb->actual_length;
819 if (data->recv_bulk(data, urb->transfer_buffer,
820 urb->actual_length) < 0) {
821 bt_dev_err(hdev, "corrupted ACL packet");
824 } else if (urb->status == -ENOENT) {
825 /* Avoid suspend failed when usb_kill_urb */
829 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
832 usb_anchor_urb(urb, &data->bulk_anchor);
833 usb_mark_last_busy(data->udev);
835 err = usb_submit_urb(urb, GFP_ATOMIC);
837 /* -EPERM: urb is being killed;
838 * -ENODEV: device got disconnected
840 if (err != -EPERM && err != -ENODEV)
841 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
843 usb_unanchor_urb(urb);
847 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
849 struct btusb_data *data = hci_get_drvdata(hdev);
853 int err, size = HCI_MAX_FRAME_SIZE;
855 BT_DBG("%s", hdev->name);
857 if (!data->bulk_rx_ep)
860 urb = usb_alloc_urb(0, mem_flags);
864 buf = kmalloc(size, mem_flags);
870 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
872 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
873 btusb_bulk_complete, hdev);
875 urb->transfer_flags |= URB_FREE_BUFFER;
877 usb_mark_last_busy(data->udev);
878 usb_anchor_urb(urb, &data->bulk_anchor);
880 err = usb_submit_urb(urb, mem_flags);
882 if (err != -EPERM && err != -ENODEV)
883 bt_dev_err(hdev, "urb %p submission failed (%d)",
885 usb_unanchor_urb(urb);
893 static void btusb_isoc_complete(struct urb *urb)
895 struct hci_dev *hdev = urb->context;
896 struct btusb_data *data = hci_get_drvdata(hdev);
899 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
902 if (!test_bit(HCI_RUNNING, &hdev->flags))
905 if (urb->status == 0) {
906 for (i = 0; i < urb->number_of_packets; i++) {
907 unsigned int offset = urb->iso_frame_desc[i].offset;
908 unsigned int length = urb->iso_frame_desc[i].actual_length;
910 if (urb->iso_frame_desc[i].status)
913 hdev->stat.byte_rx += length;
915 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
917 bt_dev_err(hdev, "corrupted SCO packet");
921 } else if (urb->status == -ENOENT) {
922 /* Avoid suspend failed when usb_kill_urb */
926 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
929 usb_anchor_urb(urb, &data->isoc_anchor);
931 err = usb_submit_urb(urb, GFP_ATOMIC);
933 /* -EPERM: urb is being killed;
934 * -ENODEV: device got disconnected
936 if (err != -EPERM && err != -ENODEV)
937 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
939 usb_unanchor_urb(urb);
943 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
947 BT_DBG("len %d mtu %d", len, mtu);
949 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
950 i++, offset += mtu, len -= mtu) {
951 urb->iso_frame_desc[i].offset = offset;
952 urb->iso_frame_desc[i].length = mtu;
955 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
956 urb->iso_frame_desc[i].offset = offset;
957 urb->iso_frame_desc[i].length = len;
961 urb->number_of_packets = i;
964 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
966 struct btusb_data *data = hci_get_drvdata(hdev);
972 BT_DBG("%s", hdev->name);
974 if (!data->isoc_rx_ep)
977 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
981 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
982 BTUSB_MAX_ISOC_FRAMES;
984 buf = kmalloc(size, mem_flags);
990 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
992 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
993 hdev, data->isoc_rx_ep->bInterval);
995 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
997 __fill_isoc_descriptor(urb, size,
998 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
1000 usb_anchor_urb(urb, &data->isoc_anchor);
1002 err = usb_submit_urb(urb, mem_flags);
1004 if (err != -EPERM && err != -ENODEV)
1005 bt_dev_err(hdev, "urb %p submission failed (%d)",
1007 usb_unanchor_urb(urb);
1015 static void btusb_diag_complete(struct urb *urb)
1017 struct hci_dev *hdev = urb->context;
1018 struct btusb_data *data = hci_get_drvdata(hdev);
1021 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1022 urb->actual_length);
1024 if (urb->status == 0) {
1025 struct sk_buff *skb;
1027 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC);
1029 skb_put_data(skb, urb->transfer_buffer,
1030 urb->actual_length);
1031 hci_recv_diag(hdev, skb);
1033 } else if (urb->status == -ENOENT) {
1034 /* Avoid suspend failed when usb_kill_urb */
1038 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags))
1041 usb_anchor_urb(urb, &data->diag_anchor);
1042 usb_mark_last_busy(data->udev);
1044 err = usb_submit_urb(urb, GFP_ATOMIC);
1046 /* -EPERM: urb is being killed;
1047 * -ENODEV: device got disconnected
1049 if (err != -EPERM && err != -ENODEV)
1050 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1052 usb_unanchor_urb(urb);
1056 static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags)
1058 struct btusb_data *data = hci_get_drvdata(hdev);
1062 int err, size = HCI_MAX_FRAME_SIZE;
1064 BT_DBG("%s", hdev->name);
1066 if (!data->diag_rx_ep)
1069 urb = usb_alloc_urb(0, mem_flags);
1073 buf = kmalloc(size, mem_flags);
1079 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress);
1081 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1082 btusb_diag_complete, hdev);
1084 urb->transfer_flags |= URB_FREE_BUFFER;
1086 usb_mark_last_busy(data->udev);
1087 usb_anchor_urb(urb, &data->diag_anchor);
1089 err = usb_submit_urb(urb, mem_flags);
1091 if (err != -EPERM && err != -ENODEV)
1092 bt_dev_err(hdev, "urb %p submission failed (%d)",
1094 usb_unanchor_urb(urb);
1102 static void btusb_tx_complete(struct urb *urb)
1104 struct sk_buff *skb = urb->context;
1105 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1106 struct btusb_data *data = hci_get_drvdata(hdev);
1107 unsigned long flags;
1109 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1110 urb->actual_length);
1112 if (!test_bit(HCI_RUNNING, &hdev->flags))
1116 hdev->stat.byte_tx += urb->transfer_buffer_length;
1118 hdev->stat.err_tx++;
1121 spin_lock_irqsave(&data->txlock, flags);
1122 data->tx_in_flight--;
1123 spin_unlock_irqrestore(&data->txlock, flags);
1125 kfree(urb->setup_packet);
1130 static void btusb_isoc_tx_complete(struct urb *urb)
1132 struct sk_buff *skb = urb->context;
1133 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1135 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1136 urb->actual_length);
1138 if (!test_bit(HCI_RUNNING, &hdev->flags))
1142 hdev->stat.byte_tx += urb->transfer_buffer_length;
1144 hdev->stat.err_tx++;
1147 kfree(urb->setup_packet);
1152 static int btusb_open(struct hci_dev *hdev)
1154 struct btusb_data *data = hci_get_drvdata(hdev);
1157 BT_DBG("%s", hdev->name);
1159 err = usb_autopm_get_interface(data->intf);
1163 /* Patching USB firmware files prior to starting any URBs of HCI path
1164 * It is more safe to use USB bulk channel for downloading USB patch
1166 if (data->setup_on_usb) {
1167 err = data->setup_on_usb(hdev);
1172 data->intf->needs_remote_wakeup = 1;
1173 /* device specific wakeup source enabled and required for USB
1174 * remote wakeup while host is suspended
1176 device_wakeup_enable(&data->udev->dev);
1178 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
1181 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
1185 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1187 usb_kill_anchored_urbs(&data->intr_anchor);
1191 set_bit(BTUSB_BULK_RUNNING, &data->flags);
1192 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1195 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL))
1196 set_bit(BTUSB_DIAG_RUNNING, &data->flags);
1200 usb_autopm_put_interface(data->intf);
1204 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1205 usb_autopm_put_interface(data->intf);
1209 static void btusb_stop_traffic(struct btusb_data *data)
1211 usb_kill_anchored_urbs(&data->intr_anchor);
1212 usb_kill_anchored_urbs(&data->bulk_anchor);
1213 usb_kill_anchored_urbs(&data->isoc_anchor);
1214 usb_kill_anchored_urbs(&data->diag_anchor);
1215 usb_kill_anchored_urbs(&data->ctrl_anchor);
1218 static int btusb_close(struct hci_dev *hdev)
1220 struct btusb_data *data = hci_get_drvdata(hdev);
1223 BT_DBG("%s", hdev->name);
1225 cancel_work_sync(&data->work);
1226 cancel_work_sync(&data->waker);
1228 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1229 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1230 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1231 clear_bit(BTUSB_DIAG_RUNNING, &data->flags);
1233 btusb_stop_traffic(data);
1234 btusb_free_frags(data);
1236 err = usb_autopm_get_interface(data->intf);
1240 data->intf->needs_remote_wakeup = 0;
1241 device_wakeup_disable(&data->udev->dev);
1242 usb_autopm_put_interface(data->intf);
1245 usb_scuttle_anchored_urbs(&data->deferred);
1249 static int btusb_flush(struct hci_dev *hdev)
1251 struct btusb_data *data = hci_get_drvdata(hdev);
1253 BT_DBG("%s", hdev->name);
1255 usb_kill_anchored_urbs(&data->tx_anchor);
1256 btusb_free_frags(data);
1261 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
1263 struct btusb_data *data = hci_get_drvdata(hdev);
1264 struct usb_ctrlrequest *dr;
1268 urb = usb_alloc_urb(0, GFP_KERNEL);
1270 return ERR_PTR(-ENOMEM);
1272 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
1275 return ERR_PTR(-ENOMEM);
1278 dr->bRequestType = data->cmdreq_type;
1279 dr->bRequest = data->cmdreq;
1282 dr->wLength = __cpu_to_le16(skb->len);
1284 pipe = usb_sndctrlpipe(data->udev, 0x00);
1286 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
1287 skb->data, skb->len, btusb_tx_complete, skb);
1289 skb->dev = (void *)hdev;
1294 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
1296 struct btusb_data *data = hci_get_drvdata(hdev);
1300 if (!data->bulk_tx_ep)
1301 return ERR_PTR(-ENODEV);
1303 urb = usb_alloc_urb(0, GFP_KERNEL);
1305 return ERR_PTR(-ENOMEM);
1307 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
1309 usb_fill_bulk_urb(urb, data->udev, pipe,
1310 skb->data, skb->len, btusb_tx_complete, skb);
1312 skb->dev = (void *)hdev;
1317 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
1319 struct btusb_data *data = hci_get_drvdata(hdev);
1323 if (!data->isoc_tx_ep)
1324 return ERR_PTR(-ENODEV);
1326 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
1328 return ERR_PTR(-ENOMEM);
1330 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
1332 usb_fill_int_urb(urb, data->udev, pipe,
1333 skb->data, skb->len, btusb_isoc_tx_complete,
1334 skb, data->isoc_tx_ep->bInterval);
1336 urb->transfer_flags = URB_ISO_ASAP;
1338 __fill_isoc_descriptor(urb, skb->len,
1339 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
1341 skb->dev = (void *)hdev;
1346 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
1348 struct btusb_data *data = hci_get_drvdata(hdev);
1351 usb_anchor_urb(urb, &data->tx_anchor);
1353 err = usb_submit_urb(urb, GFP_KERNEL);
1355 if (err != -EPERM && err != -ENODEV)
1356 bt_dev_err(hdev, "urb %p submission failed (%d)",
1358 kfree(urb->setup_packet);
1359 usb_unanchor_urb(urb);
1361 usb_mark_last_busy(data->udev);
1368 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
1370 struct btusb_data *data = hci_get_drvdata(hdev);
1371 unsigned long flags;
1374 spin_lock_irqsave(&data->txlock, flags);
1375 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
1377 data->tx_in_flight++;
1378 spin_unlock_irqrestore(&data->txlock, flags);
1381 return submit_tx_urb(hdev, urb);
1383 usb_anchor_urb(urb, &data->deferred);
1384 schedule_work(&data->waker);
1390 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
1394 BT_DBG("%s", hdev->name);
1396 switch (hci_skb_pkt_type(skb)) {
1397 case HCI_COMMAND_PKT:
1398 urb = alloc_ctrl_urb(hdev, skb);
1400 return PTR_ERR(urb);
1402 hdev->stat.cmd_tx++;
1403 return submit_or_queue_tx_urb(hdev, urb);
1405 case HCI_ACLDATA_PKT:
1406 urb = alloc_bulk_urb(hdev, skb);
1408 return PTR_ERR(urb);
1410 hdev->stat.acl_tx++;
1411 return submit_or_queue_tx_urb(hdev, urb);
1413 case HCI_SCODATA_PKT:
1414 if (hci_conn_num(hdev, SCO_LINK) < 1)
1417 urb = alloc_isoc_urb(hdev, skb);
1419 return PTR_ERR(urb);
1421 hdev->stat.sco_tx++;
1422 return submit_tx_urb(hdev, urb);
1428 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
1430 struct btusb_data *data = hci_get_drvdata(hdev);
1432 BT_DBG("%s evt %d", hdev->name, evt);
1434 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
1435 data->sco_num = hci_conn_num(hdev, SCO_LINK);
1436 schedule_work(&data->work);
1440 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
1442 struct btusb_data *data = hci_get_drvdata(hdev);
1443 struct usb_interface *intf = data->isoc;
1444 struct usb_endpoint_descriptor *ep_desc;
1450 err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting);
1452 bt_dev_err(hdev, "setting interface failed (%d)", -err);
1456 data->isoc_altsetting = altsetting;
1458 data->isoc_tx_ep = NULL;
1459 data->isoc_rx_ep = NULL;
1461 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1462 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1464 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
1465 data->isoc_tx_ep = ep_desc;
1469 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
1470 data->isoc_rx_ep = ep_desc;
1475 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
1476 bt_dev_err(hdev, "invalid SCO descriptors");
1483 static void btusb_work(struct work_struct *work)
1485 struct btusb_data *data = container_of(work, struct btusb_data, work);
1486 struct hci_dev *hdev = data->hdev;
1490 if (data->sco_num > 0) {
1491 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
1492 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
1494 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1495 usb_kill_anchored_urbs(&data->isoc_anchor);
1499 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
1502 if (hdev->voice_setting & 0x0020) {
1503 static const int alts[3] = { 2, 4, 5 };
1505 new_alts = alts[data->sco_num - 1];
1507 new_alts = data->sco_num;
1510 if (data->isoc_altsetting != new_alts) {
1511 unsigned long flags;
1513 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1514 usb_kill_anchored_urbs(&data->isoc_anchor);
1516 /* When isochronous alternate setting needs to be
1517 * changed, because SCO connection has been added
1518 * or removed, a packet fragment may be left in the
1519 * reassembling state. This could lead to wrongly
1520 * assembled fragments.
1522 * Clear outstanding fragment when selecting a new
1523 * alternate setting.
1525 spin_lock_irqsave(&data->rxlock, flags);
1526 kfree_skb(data->sco_skb);
1527 data->sco_skb = NULL;
1528 spin_unlock_irqrestore(&data->rxlock, flags);
1530 if (__set_isoc_interface(hdev, new_alts) < 0)
1534 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1535 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
1536 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1538 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
1541 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1542 usb_kill_anchored_urbs(&data->isoc_anchor);
1544 __set_isoc_interface(hdev, 0);
1545 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
1546 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
1550 static void btusb_waker(struct work_struct *work)
1552 struct btusb_data *data = container_of(work, struct btusb_data, waker);
1555 err = usb_autopm_get_interface(data->intf);
1559 usb_autopm_put_interface(data->intf);
1562 static int btusb_setup_bcm92035(struct hci_dev *hdev)
1564 struct sk_buff *skb;
1567 BT_DBG("%s", hdev->name);
1569 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
1571 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb));
1578 static int btusb_setup_csr(struct hci_dev *hdev)
1580 struct hci_rp_read_local_version *rp;
1581 struct sk_buff *skb;
1583 BT_DBG("%s", hdev->name);
1585 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1588 int err = PTR_ERR(skb);
1589 bt_dev_err(hdev, "CSR: Local version failed (%d)", err);
1593 if (skb->len != sizeof(struct hci_rp_read_local_version)) {
1594 bt_dev_err(hdev, "CSR: Local version length mismatch");
1599 rp = (struct hci_rp_read_local_version *)skb->data;
1601 /* Detect controllers which aren't real CSR ones. */
1602 if (le16_to_cpu(rp->manufacturer) != 10 ||
1603 le16_to_cpu(rp->lmp_subver) == 0x0c5c) {
1604 /* Clear the reset quirk since this is not an actual
1605 * early Bluetooth 1.1 device from CSR.
1607 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1609 /* These fake CSR controllers have all a broken
1610 * stored link key handling and so just disable it.
1612 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
1620 static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev,
1621 struct intel_version *ver)
1623 const struct firmware *fw;
1627 snprintf(fwname, sizeof(fwname),
1628 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq",
1629 ver->hw_platform, ver->hw_variant, ver->hw_revision,
1630 ver->fw_variant, ver->fw_revision, ver->fw_build_num,
1631 ver->fw_build_ww, ver->fw_build_yy);
1633 ret = request_firmware(&fw, fwname, &hdev->dev);
1635 if (ret == -EINVAL) {
1636 bt_dev_err(hdev, "Intel firmware file request failed (%d)",
1641 bt_dev_err(hdev, "failed to open Intel firmware file: %s (%d)",
1644 /* If the correct firmware patch file is not found, use the
1645 * default firmware patch file instead
1647 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq",
1648 ver->hw_platform, ver->hw_variant);
1649 if (request_firmware(&fw, fwname, &hdev->dev) < 0) {
1650 bt_dev_err(hdev, "failed to open default fw file: %s",
1656 bt_dev_info(hdev, "Intel Bluetooth firmware file: %s", fwname);
1661 static int btusb_setup_intel_patching(struct hci_dev *hdev,
1662 const struct firmware *fw,
1663 const u8 **fw_ptr, int *disable_patch)
1665 struct sk_buff *skb;
1666 struct hci_command_hdr *cmd;
1667 const u8 *cmd_param;
1668 struct hci_event_hdr *evt = NULL;
1669 const u8 *evt_param = NULL;
1670 int remain = fw->size - (*fw_ptr - fw->data);
1672 /* The first byte indicates the types of the patch command or event.
1673 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes
1674 * in the current firmware buffer doesn't start with 0x01 or
1675 * the size of remain buffer is smaller than HCI command header,
1676 * the firmware file is corrupted and it should stop the patching
1679 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) {
1680 bt_dev_err(hdev, "Intel fw corrupted: invalid cmd read");
1686 cmd = (struct hci_command_hdr *)(*fw_ptr);
1687 *fw_ptr += sizeof(*cmd);
1688 remain -= sizeof(*cmd);
1690 /* Ensure that the remain firmware data is long enough than the length
1691 * of command parameter. If not, the firmware file is corrupted.
1693 if (remain < cmd->plen) {
1694 bt_dev_err(hdev, "Intel fw corrupted: invalid cmd len");
1698 /* If there is a command that loads a patch in the firmware
1699 * file, then enable the patch upon success, otherwise just
1700 * disable the manufacturer mode, for example patch activation
1701 * is not required when the default firmware patch file is used
1702 * because there are no patch data to load.
1704 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e)
1707 cmd_param = *fw_ptr;
1708 *fw_ptr += cmd->plen;
1709 remain -= cmd->plen;
1711 /* This reads the expected events when the above command is sent to the
1712 * device. Some vendor commands expects more than one events, for
1713 * example command status event followed by vendor specific event.
1714 * For this case, it only keeps the last expected event. so the command
1715 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of
1716 * last expected event.
1718 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) {
1722 evt = (struct hci_event_hdr *)(*fw_ptr);
1723 *fw_ptr += sizeof(*evt);
1724 remain -= sizeof(*evt);
1726 if (remain < evt->plen) {
1727 bt_dev_err(hdev, "Intel fw corrupted: invalid evt len");
1731 evt_param = *fw_ptr;
1732 *fw_ptr += evt->plen;
1733 remain -= evt->plen;
1736 /* Every HCI commands in the firmware file has its correspond event.
1737 * If event is not found or remain is smaller than zero, the firmware
1738 * file is corrupted.
1740 if (!evt || !evt_param || remain < 0) {
1741 bt_dev_err(hdev, "Intel fw corrupted: invalid evt read");
1745 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen,
1746 cmd_param, evt->evt, HCI_INIT_TIMEOUT);
1748 bt_dev_err(hdev, "sending Intel patch command (0x%4.4x) failed (%ld)",
1749 cmd->opcode, PTR_ERR(skb));
1750 return PTR_ERR(skb);
1753 /* It ensures that the returned event matches the event data read from
1754 * the firmware file. At fist, it checks the length and then
1755 * the contents of the event.
1757 if (skb->len != evt->plen) {
1758 bt_dev_err(hdev, "mismatch event length (opcode 0x%4.4x)",
1759 le16_to_cpu(cmd->opcode));
1764 if (memcmp(skb->data, evt_param, evt->plen)) {
1765 bt_dev_err(hdev, "mismatch event parameter (opcode 0x%4.4x)",
1766 le16_to_cpu(cmd->opcode));
1775 static int btusb_setup_intel(struct hci_dev *hdev)
1777 struct sk_buff *skb;
1778 const struct firmware *fw;
1780 int disable_patch, err;
1781 struct intel_version ver;
1783 BT_DBG("%s", hdev->name);
1785 /* The controller has a bug with the first HCI command sent to it
1786 * returning number of completed commands as zero. This would stall the
1787 * command processing in the Bluetooth core.
1789 * As a workaround, send HCI Reset command first which will reset the
1790 * number of completed commands and allow normal command processing
1793 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1795 bt_dev_err(hdev, "sending initial HCI reset command failed (%ld)",
1797 return PTR_ERR(skb);
1801 /* Read Intel specific controller version first to allow selection of
1802 * which firmware file to load.
1804 * The returned information are hardware variant and revision plus
1805 * firmware variant, revision and build number.
1807 err = btintel_read_version(hdev, &ver);
1811 bt_dev_info(hdev, "read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
1812 ver.hw_platform, ver.hw_variant, ver.hw_revision,
1813 ver.fw_variant, ver.fw_revision, ver.fw_build_num,
1814 ver.fw_build_ww, ver.fw_build_yy, ver.fw_patch_num);
1816 /* fw_patch_num indicates the version of patch the device currently
1817 * have. If there is no patch data in the device, it is always 0x00.
1818 * So, if it is other than 0x00, no need to patch the device again.
1820 if (ver.fw_patch_num) {
1821 bt_dev_info(hdev, "Intel device is already patched. "
1822 "patch num: %02x", ver.fw_patch_num);
1826 /* Opens the firmware patch file based on the firmware version read
1827 * from the controller. If it fails to open the matching firmware
1828 * patch file, it tries to open the default firmware patch file.
1829 * If no patch file is found, allow the device to operate without
1832 fw = btusb_setup_intel_get_fw(hdev, &ver);
1837 /* Enable the manufacturer mode of the controller.
1838 * Only while this mode is enabled, the driver can download the
1839 * firmware patch data and configuration parameters.
1841 err = btintel_enter_mfg(hdev);
1843 release_firmware(fw);
1849 /* The firmware data file consists of list of Intel specific HCI
1850 * commands and its expected events. The first byte indicates the
1851 * type of the message, either HCI command or HCI event.
1853 * It reads the command and its expected event from the firmware file,
1854 * and send to the controller. Once __hci_cmd_sync_ev() returns,
1855 * the returned event is compared with the event read from the firmware
1856 * file and it will continue until all the messages are downloaded to
1859 * Once the firmware patching is completed successfully,
1860 * the manufacturer mode is disabled with reset and activating the
1863 * If the firmware patching fails, the manufacturer mode is
1864 * disabled with reset and deactivating the patch.
1866 * If the default patch file is used, no reset is done when disabling
1869 while (fw->size > fw_ptr - fw->data) {
1872 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr,
1875 goto exit_mfg_deactivate;
1878 release_firmware(fw);
1881 goto exit_mfg_disable;
1883 /* Patching completed successfully and disable the manufacturer mode
1884 * with reset and activate the downloaded firmware patches.
1886 err = btintel_exit_mfg(hdev, true, true);
1890 bt_dev_info(hdev, "Intel firmware patch completed and activated");
1895 /* Disable the manufacturer mode without reset */
1896 err = btintel_exit_mfg(hdev, false, false);
1900 bt_dev_info(hdev, "Intel firmware patch completed");
1904 exit_mfg_deactivate:
1905 release_firmware(fw);
1907 /* Patching failed. Disable the manufacturer mode with reset and
1908 * deactivate the downloaded firmware patches.
1910 err = btintel_exit_mfg(hdev, true, false);
1914 bt_dev_info(hdev, "Intel firmware patch completed and deactivated");
1917 /* Set the event mask for Intel specific vendor events. This enables
1918 * a few extra events that are useful during general operation.
1920 btintel_set_event_mask_mfg(hdev, false);
1922 btintel_check_bdaddr(hdev);
1926 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
1928 struct sk_buff *skb;
1929 struct hci_event_hdr *hdr;
1930 struct hci_ev_cmd_complete *evt;
1932 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL);
1936 hdr = skb_put(skb, sizeof(*hdr));
1937 hdr->evt = HCI_EV_CMD_COMPLETE;
1938 hdr->plen = sizeof(*evt) + 1;
1940 evt = skb_put(skb, sizeof(*evt));
1942 evt->opcode = cpu_to_le16(opcode);
1944 skb_put_u8(skb, 0x00);
1946 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
1948 return hci_recv_frame(hdev, skb);
1951 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
1954 /* When the device is in bootloader mode, then it can send
1955 * events via the bulk endpoint. These events are treated the
1956 * same way as the ones received from the interrupt endpoint.
1958 if (test_bit(BTUSB_BOOTLOADER, &data->flags))
1959 return btusb_recv_intr(data, buffer, count);
1961 return btusb_recv_bulk(data, buffer, count);
1964 static void btusb_intel_bootup(struct btusb_data *data, const void *ptr,
1967 const struct intel_bootup *evt = ptr;
1969 if (len != sizeof(*evt))
1972 if (test_and_clear_bit(BTUSB_BOOTING, &data->flags))
1973 wake_up_bit(&data->flags, BTUSB_BOOTING);
1976 static void btusb_intel_secure_send_result(struct btusb_data *data,
1977 const void *ptr, unsigned int len)
1979 const struct intel_secure_send_result *evt = ptr;
1981 if (len != sizeof(*evt))
1985 set_bit(BTUSB_FIRMWARE_FAILED, &data->flags);
1987 if (test_and_clear_bit(BTUSB_DOWNLOADING, &data->flags) &&
1988 test_bit(BTUSB_FIRMWARE_LOADED, &data->flags))
1989 wake_up_bit(&data->flags, BTUSB_DOWNLOADING);
1992 static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb)
1994 struct btusb_data *data = hci_get_drvdata(hdev);
1996 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
1997 struct hci_event_hdr *hdr = (void *)skb->data;
1999 if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff &&
2001 const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1;
2002 unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1;
2004 switch (skb->data[2]) {
2006 /* When switching to the operational firmware
2007 * the device sends a vendor specific event
2008 * indicating that the bootup completed.
2010 btusb_intel_bootup(data, ptr, len);
2013 /* When the firmware loading completes the
2014 * device sends out a vendor specific event
2015 * indicating the result of the firmware
2018 btusb_intel_secure_send_result(data, ptr, len);
2024 return hci_recv_frame(hdev, skb);
2027 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
2029 struct btusb_data *data = hci_get_drvdata(hdev);
2032 BT_DBG("%s", hdev->name);
2034 switch (hci_skb_pkt_type(skb)) {
2035 case HCI_COMMAND_PKT:
2036 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
2037 struct hci_command_hdr *cmd = (void *)skb->data;
2038 __u16 opcode = le16_to_cpu(cmd->opcode);
2040 /* When in bootloader mode and the command 0xfc09
2041 * is received, it needs to be send down the
2042 * bulk endpoint. So allocate a bulk URB instead.
2044 if (opcode == 0xfc09)
2045 urb = alloc_bulk_urb(hdev, skb);
2047 urb = alloc_ctrl_urb(hdev, skb);
2049 /* When the 0xfc01 command is issued to boot into
2050 * the operational firmware, it will actually not
2051 * send a command complete event. To keep the flow
2052 * control working inject that event here.
2054 if (opcode == 0xfc01)
2055 inject_cmd_complete(hdev, opcode);
2057 urb = alloc_ctrl_urb(hdev, skb);
2060 return PTR_ERR(urb);
2062 hdev->stat.cmd_tx++;
2063 return submit_or_queue_tx_urb(hdev, urb);
2065 case HCI_ACLDATA_PKT:
2066 urb = alloc_bulk_urb(hdev, skb);
2068 return PTR_ERR(urb);
2070 hdev->stat.acl_tx++;
2071 return submit_or_queue_tx_urb(hdev, urb);
2073 case HCI_SCODATA_PKT:
2074 if (hci_conn_num(hdev, SCO_LINK) < 1)
2077 urb = alloc_isoc_urb(hdev, skb);
2079 return PTR_ERR(urb);
2081 hdev->stat.sco_tx++;
2082 return submit_tx_urb(hdev, urb);
2088 static bool btusb_setup_intel_new_get_fw_name(struct intel_version *ver,
2089 struct intel_boot_params *params,
2090 char *fw_name, size_t len,
2093 switch (ver->hw_variant) {
2094 case 0x0b: /* SfP */
2095 case 0x0c: /* WsP */
2096 snprintf(fw_name, len, "intel/ibt-%u-%u.%s",
2097 le16_to_cpu(ver->hw_variant),
2098 le16_to_cpu(params->dev_revid),
2101 case 0x11: /* JfP */
2102 case 0x12: /* ThP */
2103 case 0x13: /* HrP */
2104 case 0x14: /* CcP */
2105 snprintf(fw_name, len, "intel/ibt-%u-%u-%u.%s",
2106 le16_to_cpu(ver->hw_variant),
2107 le16_to_cpu(ver->hw_revision),
2108 le16_to_cpu(ver->fw_revision),
2117 static int btusb_setup_intel_new(struct hci_dev *hdev)
2119 struct btusb_data *data = hci_get_drvdata(hdev);
2120 struct intel_version ver;
2121 struct intel_boot_params params;
2122 const struct firmware *fw;
2125 ktime_t calltime, delta, rettime;
2126 unsigned long long duration;
2129 BT_DBG("%s", hdev->name);
2131 /* Set the default boot parameter to 0x0 and it is updated to
2132 * SKU specific boot parameter after reading Intel_Write_Boot_Params
2133 * command while downloading the firmware.
2135 boot_param = 0x00000000;
2137 calltime = ktime_get();
2139 /* Read the Intel version information to determine if the device
2140 * is in bootloader mode or if it already has operational firmware
2143 err = btintel_read_version(hdev, &ver);
2147 /* The hardware platform number has a fixed value of 0x37 and
2148 * for now only accept this single value.
2150 if (ver.hw_platform != 0x37) {
2151 bt_dev_err(hdev, "Unsupported Intel hardware platform (%u)",
2156 /* Check for supported iBT hardware variants of this firmware
2159 * This check has been put in place to ensure correct forward
2160 * compatibility options when newer hardware variants come along.
2162 switch (ver.hw_variant) {
2163 case 0x0b: /* SfP */
2164 case 0x0c: /* WsP */
2165 case 0x11: /* JfP */
2166 case 0x12: /* ThP */
2167 case 0x13: /* HrP */
2168 case 0x14: /* CcP */
2171 bt_dev_err(hdev, "Unsupported Intel hardware variant (%u)",
2176 btintel_version_info(hdev, &ver);
2178 /* The firmware variant determines if the device is in bootloader
2179 * mode or is running operational firmware. The value 0x06 identifies
2180 * the bootloader and the value 0x23 identifies the operational
2183 * When the operational firmware is already present, then only
2184 * the check for valid Bluetooth device address is needed. This
2185 * determines if the device will be added as configured or
2186 * unconfigured controller.
2188 * It is not possible to use the Secure Boot Parameters in this
2189 * case since that command is only available in bootloader mode.
2191 if (ver.fw_variant == 0x23) {
2192 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2193 btintel_check_bdaddr(hdev);
2197 /* If the device is not in bootloader mode, then the only possible
2198 * choice is to return an error and abort the device initialization.
2200 if (ver.fw_variant != 0x06) {
2201 bt_dev_err(hdev, "Unsupported Intel firmware variant (%u)",
2206 /* Read the secure boot parameters to identify the operating
2207 * details of the bootloader.
2209 err = btintel_read_boot_params(hdev, ¶ms);
2213 /* It is required that every single firmware fragment is acknowledged
2214 * with a command complete event. If the boot parameters indicate
2215 * that this bootloader does not send them, then abort the setup.
2217 if (params.limited_cce != 0x00) {
2218 bt_dev_err(hdev, "Unsupported Intel firmware loading method (%u)",
2219 params.limited_cce);
2223 /* If the OTP has no valid Bluetooth device address, then there will
2224 * also be no valid address for the operational firmware.
2226 if (!bacmp(¶ms.otp_bdaddr, BDADDR_ANY)) {
2227 bt_dev_info(hdev, "No device address configured");
2228 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
2231 /* With this Intel bootloader only the hardware variant and device
2232 * revision information are used to select the right firmware for SfP
2235 * The firmware filename is ibt-<hw_variant>-<dev_revid>.sfi.
2237 * Currently the supported hardware variants are:
2238 * 11 (0x0b) for iBT3.0 (LnP/SfP)
2239 * 12 (0x0c) for iBT3.5 (WsP)
2241 * For ThP/JfP and for future SKU's, the FW name varies based on HW
2242 * variant, HW revision and FW revision, as these are dependent on CNVi
2243 * and RF Combination.
2245 * 17 (0x11) for iBT3.5 (JfP)
2246 * 18 (0x12) for iBT3.5 (ThP)
2248 * The firmware file name for these will be
2249 * ibt-<hw_variant>-<hw_revision>-<fw_revision>.sfi.
2252 err = btusb_setup_intel_new_get_fw_name(&ver, ¶ms, fwname,
2253 sizeof(fwname), "sfi");
2255 bt_dev_err(hdev, "Unsupported Intel firmware naming");
2259 err = request_firmware(&fw, fwname, &hdev->dev);
2261 bt_dev_err(hdev, "Failed to load Intel firmware file (%d)", err);
2265 bt_dev_info(hdev, "Found device firmware: %s", fwname);
2267 /* Save the DDC file name for later use to apply once the firmware
2268 * downloading is done.
2270 err = btusb_setup_intel_new_get_fw_name(&ver, ¶ms, fwname,
2271 sizeof(fwname), "ddc");
2273 bt_dev_err(hdev, "Unsupported Intel firmware naming");
2277 if (fw->size < 644) {
2278 bt_dev_err(hdev, "Invalid size of firmware file (%zu)",
2284 set_bit(BTUSB_DOWNLOADING, &data->flags);
2286 /* Start firmware downloading and get boot parameter */
2287 err = btintel_download_firmware(hdev, fw, &boot_param);
2291 set_bit(BTUSB_FIRMWARE_LOADED, &data->flags);
2293 bt_dev_info(hdev, "Waiting for firmware download to complete");
2295 /* Before switching the device into operational mode and with that
2296 * booting the loaded firmware, wait for the bootloader notification
2297 * that all fragments have been successfully received.
2299 * When the event processing receives the notification, then the
2300 * BTUSB_DOWNLOADING flag will be cleared.
2302 * The firmware loading should not take longer than 5 seconds
2303 * and thus just timeout if that happens and fail the setup
2306 err = wait_on_bit_timeout(&data->flags, BTUSB_DOWNLOADING,
2308 msecs_to_jiffies(5000));
2309 if (err == -EINTR) {
2310 bt_dev_err(hdev, "Firmware loading interrupted");
2315 bt_dev_err(hdev, "Firmware loading timeout");
2320 if (test_bit(BTUSB_FIRMWARE_FAILED, &data->flags)) {
2321 bt_dev_err(hdev, "Firmware loading failed");
2326 rettime = ktime_get();
2327 delta = ktime_sub(rettime, calltime);
2328 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2330 bt_dev_info(hdev, "Firmware loaded in %llu usecs", duration);
2333 release_firmware(fw);
2338 calltime = ktime_get();
2340 set_bit(BTUSB_BOOTING, &data->flags);
2342 err = btintel_send_intel_reset(hdev, boot_param);
2346 /* The bootloader will not indicate when the device is ready. This
2347 * is done by the operational firmware sending bootup notification.
2349 * Booting into operational firmware should not take longer than
2350 * 1 second. However if that happens, then just fail the setup
2351 * since something went wrong.
2353 bt_dev_info(hdev, "Waiting for device to boot");
2355 err = wait_on_bit_timeout(&data->flags, BTUSB_BOOTING,
2357 msecs_to_jiffies(1000));
2359 if (err == -EINTR) {
2360 bt_dev_err(hdev, "Device boot interrupted");
2365 bt_dev_err(hdev, "Device boot timeout");
2369 rettime = ktime_get();
2370 delta = ktime_sub(rettime, calltime);
2371 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2373 bt_dev_info(hdev, "Device booted in %llu usecs", duration);
2375 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2377 /* Once the device is running in operational mode, it needs to apply
2378 * the device configuration (DDC) parameters.
2380 * The device can work without DDC parameters, so even if it fails
2381 * to load the file, no need to fail the setup.
2383 btintel_load_ddc_config(hdev, fwname);
2385 /* Set the event mask for Intel specific vendor events. This enables
2386 * a few extra events that are useful during general operation. It
2387 * does not enable any debugging related events.
2389 * The device will function correctly without these events enabled
2390 * and thus no need to fail the setup.
2392 btintel_set_event_mask(hdev, false);
2397 static int btusb_shutdown_intel(struct hci_dev *hdev)
2399 struct sk_buff *skb;
2402 /* In the shutdown sequence where Bluetooth is turned off followed
2403 * by WiFi being turned off, turning WiFi back on causes issue with
2404 * the RF calibration.
2406 * To ensure that any RF activity has been stopped, issue HCI Reset
2407 * command to clear all ongoing activity including advertising,
2410 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
2413 bt_dev_err(hdev, "HCI reset during shutdown failed");
2418 /* Some platforms have an issue with BT LED when the interface is
2419 * down or BT radio is turned off, which takes 5 seconds to BT LED
2420 * goes off. This command turns off the BT LED immediately.
2422 skb = __hci_cmd_sync(hdev, 0xfc3f, 0, NULL, HCI_INIT_TIMEOUT);
2425 bt_dev_err(hdev, "turning off Intel device LED failed");
2433 static int btusb_shutdown_intel_new(struct hci_dev *hdev)
2435 struct sk_buff *skb;
2437 /* Send HCI Reset to the controller to stop any BT activity which
2438 * were triggered. This will help to save power and maintain the
2439 * sync b/w Host and controller
2441 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
2443 bt_dev_err(hdev, "HCI reset during shutdown failed");
2444 return PTR_ERR(skb);
2451 #ifdef CONFIG_BT_HCIBTUSB_MTK
2453 #define FIRMWARE_MT7663 "mediatek/mt7663pr2h.bin"
2454 #define FIRMWARE_MT7668 "mediatek/mt7668pr2h.bin"
2456 #define HCI_WMT_MAX_EVENT_SIZE 64
2459 BTMTK_WMT_PATCH_DWNLD = 0x1,
2460 BTMTK_WMT_FUNC_CTRL = 0x6,
2461 BTMTK_WMT_RST = 0x7,
2462 BTMTK_WMT_SEMAPHORE = 0x17,
2467 BTMTK_WMT_PATCH_UNDONE,
2468 BTMTK_WMT_PATCH_DONE,
2469 BTMTK_WMT_ON_UNDONE,
2471 BTMTK_WMT_ON_PROGRESS,
2474 struct btmtk_wmt_hdr {
2481 struct btmtk_hci_wmt_cmd {
2482 struct btmtk_wmt_hdr hdr;
2486 struct btmtk_hci_wmt_evt {
2487 struct hci_event_hdr hhdr;
2488 struct btmtk_wmt_hdr whdr;
2491 struct btmtk_hci_wmt_evt_funcc {
2492 struct btmtk_hci_wmt_evt hwhdr;
2496 struct btmtk_tci_sleep {
2499 __le16 host_duration;
2501 u8 time_compensation;
2504 struct btmtk_hci_wmt_params {
2512 static void btusb_mtk_wmt_recv(struct urb *urb)
2514 struct hci_dev *hdev = urb->context;
2515 struct btusb_data *data = hci_get_drvdata(hdev);
2516 struct hci_event_hdr *hdr;
2517 struct sk_buff *skb;
2520 if (urb->status == 0 && urb->actual_length > 0) {
2521 hdev->stat.byte_rx += urb->actual_length;
2523 /* WMT event shouldn't be fragmented and the size should be
2524 * less than HCI_WMT_MAX_EVENT_SIZE.
2526 skb = bt_skb_alloc(HCI_WMT_MAX_EVENT_SIZE, GFP_ATOMIC);
2528 hdev->stat.err_rx++;
2532 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
2533 skb_put_data(skb, urb->transfer_buffer, urb->actual_length);
2535 hdr = (void *)skb->data;
2536 /* Fix up the vendor event id with 0xff for vendor specific
2537 * instead of 0xe4 so that event send via monitoring socket can
2538 * be parsed properly.
2542 /* When someone waits for the WMT event, the skb is being cloned
2543 * and being processed the events from there then.
2545 if (test_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags)) {
2546 data->evt_skb = skb_clone(skb, GFP_KERNEL);
2551 err = hci_recv_frame(hdev, skb);
2555 if (test_and_clear_bit(BTUSB_TX_WAIT_VND_EVT,
2557 /* Barrier to sync with other CPUs */
2558 smp_mb__after_atomic();
2559 wake_up_bit(&data->flags,
2560 BTUSB_TX_WAIT_VND_EVT);
2565 kfree_skb(data->evt_skb);
2566 data->evt_skb = NULL;
2568 } else if (urb->status == -ENOENT) {
2569 /* Avoid suspend failed when usb_kill_urb */
2573 usb_mark_last_busy(data->udev);
2575 /* The URB complete handler is still called with urb->actual_length = 0
2576 * when the event is not available, so we should keep re-submitting
2577 * URB until WMT event returns, Also, It's necessary to wait some time
2578 * between the two consecutive control URBs to relax the target device
2579 * to generate the event. Otherwise, the WMT event cannot return from
2580 * the device successfully.
2584 usb_anchor_urb(urb, &data->ctrl_anchor);
2585 err = usb_submit_urb(urb, GFP_ATOMIC);
2587 /* -EPERM: urb is being killed;
2588 * -ENODEV: device got disconnected
2590 if (err != -EPERM && err != -ENODEV)
2591 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
2593 usb_unanchor_urb(urb);
2597 static int btusb_mtk_submit_wmt_recv_urb(struct hci_dev *hdev)
2599 struct btusb_data *data = hci_get_drvdata(hdev);
2600 struct usb_ctrlrequest *dr;
2606 urb = usb_alloc_urb(0, GFP_KERNEL);
2610 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
2616 dr->bRequestType = USB_TYPE_VENDOR | USB_DIR_IN;
2618 dr->wIndex = cpu_to_le16(0);
2619 dr->wValue = cpu_to_le16(48);
2620 dr->wLength = cpu_to_le16(size);
2622 buf = kmalloc(size, GFP_KERNEL);
2628 pipe = usb_rcvctrlpipe(data->udev, 0);
2630 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
2631 buf, size, btusb_mtk_wmt_recv, hdev);
2633 urb->transfer_flags |= URB_FREE_BUFFER;
2635 usb_anchor_urb(urb, &data->ctrl_anchor);
2636 err = usb_submit_urb(urb, GFP_KERNEL);
2638 if (err != -EPERM && err != -ENODEV)
2639 bt_dev_err(hdev, "urb %p submission failed (%d)",
2641 usb_unanchor_urb(urb);
2649 static int btusb_mtk_hci_wmt_sync(struct hci_dev *hdev,
2650 struct btmtk_hci_wmt_params *wmt_params)
2652 struct btusb_data *data = hci_get_drvdata(hdev);
2653 struct btmtk_hci_wmt_evt_funcc *wmt_evt_funcc;
2654 u32 hlen, status = BTMTK_WMT_INVALID;
2655 struct btmtk_hci_wmt_evt *wmt_evt;
2656 struct btmtk_hci_wmt_cmd wc;
2657 struct btmtk_wmt_hdr *hdr;
2660 /* Submit control IN URB on demand to process the WMT event */
2661 err = btusb_mtk_submit_wmt_recv_urb(hdev);
2665 /* Send the WMT command and wait until the WMT event returns */
2666 hlen = sizeof(*hdr) + wmt_params->dlen;
2670 hdr = (struct btmtk_wmt_hdr *)&wc;
2672 hdr->op = wmt_params->op;
2673 hdr->dlen = cpu_to_le16(wmt_params->dlen + 1);
2674 hdr->flag = wmt_params->flag;
2675 memcpy(wc.data, wmt_params->data, wmt_params->dlen);
2677 set_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2679 err = __hci_cmd_send(hdev, 0xfc6f, hlen, &wc);
2682 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2686 /* The vendor specific WMT commands are all answered by a vendor
2687 * specific event and will have the Command Status or Command
2688 * Complete as with usual HCI command flow control.
2690 * After sending the command, wait for BTUSB_TX_WAIT_VND_EVT
2691 * state to be cleared. The driver specific event receive routine
2692 * will clear that state and with that indicate completion of the
2695 err = wait_on_bit_timeout(&data->flags, BTUSB_TX_WAIT_VND_EVT,
2696 TASK_INTERRUPTIBLE, HCI_INIT_TIMEOUT);
2697 if (err == -EINTR) {
2698 bt_dev_err(hdev, "Execution of wmt command interrupted");
2699 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2704 bt_dev_err(hdev, "Execution of wmt command timed out");
2705 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2709 /* Parse and handle the return WMT event */
2710 wmt_evt = (struct btmtk_hci_wmt_evt *)data->evt_skb->data;
2711 if (wmt_evt->whdr.op != hdr->op) {
2712 bt_dev_err(hdev, "Wrong op received %d expected %d",
2713 wmt_evt->whdr.op, hdr->op);
2718 switch (wmt_evt->whdr.op) {
2719 case BTMTK_WMT_SEMAPHORE:
2720 if (wmt_evt->whdr.flag == 2)
2721 status = BTMTK_WMT_PATCH_UNDONE;
2723 status = BTMTK_WMT_PATCH_DONE;
2725 case BTMTK_WMT_FUNC_CTRL:
2726 wmt_evt_funcc = (struct btmtk_hci_wmt_evt_funcc *)wmt_evt;
2727 if (be16_to_cpu(wmt_evt_funcc->status) == 0x404)
2728 status = BTMTK_WMT_ON_DONE;
2729 else if (be16_to_cpu(wmt_evt_funcc->status) == 0x420)
2730 status = BTMTK_WMT_ON_PROGRESS;
2732 status = BTMTK_WMT_ON_UNDONE;
2736 if (wmt_params->status)
2737 *wmt_params->status = status;
2740 kfree_skb(data->evt_skb);
2741 data->evt_skb = NULL;
2746 static int btusb_mtk_setup_firmware(struct hci_dev *hdev, const char *fwname)
2748 struct btmtk_hci_wmt_params wmt_params;
2749 const struct firmware *fw;
2755 err = request_firmware(&fw, fwname, &hdev->dev);
2757 bt_dev_err(hdev, "Failed to load firmware file (%d)", err);
2764 /* The size of patch header is 30 bytes, should be skip */
2767 goto err_release_fw;
2774 wmt_params.op = BTMTK_WMT_PATCH_DWNLD;
2775 wmt_params.status = NULL;
2777 while (fw_size > 0) {
2778 dlen = min_t(int, 250, fw_size);
2780 /* Tell deivice the position in sequence */
2781 if (fw_size - dlen <= 0)
2783 else if (fw_size < fw->size - 30)
2786 wmt_params.flag = flag;
2787 wmt_params.dlen = dlen;
2788 wmt_params.data = fw_ptr;
2790 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2792 bt_dev_err(hdev, "Failed to send wmt patch dwnld (%d)",
2794 goto err_release_fw;
2801 wmt_params.op = BTMTK_WMT_RST;
2802 wmt_params.flag = 4;
2803 wmt_params.dlen = 0;
2804 wmt_params.data = NULL;
2805 wmt_params.status = NULL;
2807 /* Activate funciton the firmware providing to */
2808 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2810 bt_dev_err(hdev, "Failed to send wmt rst (%d)", err);
2814 /* Wait a few moments for firmware activation done */
2815 usleep_range(10000, 12000);
2818 release_firmware(fw);
2823 static int btusb_mtk_func_query(struct hci_dev *hdev)
2825 struct btmtk_hci_wmt_params wmt_params;
2829 /* Query whether the function is enabled */
2830 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
2831 wmt_params.flag = 4;
2832 wmt_params.dlen = sizeof(param);
2833 wmt_params.data = ¶m;
2834 wmt_params.status = &status;
2836 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2838 bt_dev_err(hdev, "Failed to query function status (%d)", err);
2845 static int btusb_mtk_reg_read(struct btusb_data *data, u32 reg, u32 *val)
2847 int pipe, err, size = sizeof(u32);
2850 buf = kzalloc(size, GFP_KERNEL);
2854 pipe = usb_rcvctrlpipe(data->udev, 0);
2855 err = usb_control_msg(data->udev, pipe, 0x63,
2856 USB_TYPE_VENDOR | USB_DIR_IN,
2857 reg >> 16, reg & 0xffff,
2858 buf, size, USB_CTRL_SET_TIMEOUT);
2862 *val = get_unaligned_le32(buf);
2870 static int btusb_mtk_id_get(struct btusb_data *data, u32 *id)
2872 return btusb_mtk_reg_read(data, 0x80000008, id);
2875 static int btusb_mtk_setup(struct hci_dev *hdev)
2877 struct btusb_data *data = hci_get_drvdata(hdev);
2878 struct btmtk_hci_wmt_params wmt_params;
2879 ktime_t calltime, delta, rettime;
2880 struct btmtk_tci_sleep tci_sleep;
2881 unsigned long long duration;
2882 struct sk_buff *skb;
2888 calltime = ktime_get();
2890 err = btusb_mtk_id_get(data, &dev_id);
2892 bt_dev_err(hdev, "Failed to get device id (%d)", err);
2898 fwname = FIRMWARE_MT7663;
2901 fwname = FIRMWARE_MT7668;
2904 bt_dev_err(hdev, "Unsupported support hardware variant (%08x)",
2909 /* Query whether the firmware is already download */
2910 wmt_params.op = BTMTK_WMT_SEMAPHORE;
2911 wmt_params.flag = 1;
2912 wmt_params.dlen = 0;
2913 wmt_params.data = NULL;
2914 wmt_params.status = &status;
2916 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2918 bt_dev_err(hdev, "Failed to query firmware status (%d)", err);
2922 if (status == BTMTK_WMT_PATCH_DONE) {
2923 bt_dev_info(hdev, "firmware already downloaded");
2924 goto ignore_setup_fw;
2927 /* Setup a firmware which the device definitely requires */
2928 err = btusb_mtk_setup_firmware(hdev, fwname);
2933 err = readx_poll_timeout(btusb_mtk_func_query, hdev, status,
2934 status < 0 || status != BTMTK_WMT_ON_PROGRESS,
2936 /* -ETIMEDOUT happens */
2940 /* The other errors happen in btusb_mtk_func_query */
2944 if (status == BTMTK_WMT_ON_DONE) {
2945 bt_dev_info(hdev, "function already on");
2946 goto ignore_func_on;
2949 /* Enable Bluetooth protocol */
2951 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
2952 wmt_params.flag = 0;
2953 wmt_params.dlen = sizeof(param);
2954 wmt_params.data = ¶m;
2955 wmt_params.status = NULL;
2957 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2959 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
2964 /* Apply the low power environment setup */
2965 tci_sleep.mode = 0x5;
2966 tci_sleep.duration = cpu_to_le16(0x640);
2967 tci_sleep.host_duration = cpu_to_le16(0x640);
2968 tci_sleep.host_wakeup_pin = 0;
2969 tci_sleep.time_compensation = 0;
2971 skb = __hci_cmd_sync(hdev, 0xfc7a, sizeof(tci_sleep), &tci_sleep,
2975 bt_dev_err(hdev, "Failed to apply low power setting (%d)", err);
2980 rettime = ktime_get();
2981 delta = ktime_sub(rettime, calltime);
2982 duration = (unsigned long long)ktime_to_ns(delta) >> 10;
2984 bt_dev_info(hdev, "Device setup in %llu usecs", duration);
2989 static int btusb_mtk_shutdown(struct hci_dev *hdev)
2991 struct btmtk_hci_wmt_params wmt_params;
2995 /* Disable the device */
2996 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
2997 wmt_params.flag = 0;
2998 wmt_params.dlen = sizeof(param);
2999 wmt_params.data = ¶m;
3000 wmt_params.status = NULL;
3002 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3004 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3011 MODULE_FIRMWARE(FIRMWARE_MT7663);
3012 MODULE_FIRMWARE(FIRMWARE_MT7668);
3016 /* Configure an out-of-band gpio as wake-up pin, if specified in device tree */
3017 static int marvell_config_oob_wake(struct hci_dev *hdev)
3019 struct sk_buff *skb;
3020 struct btusb_data *data = hci_get_drvdata(hdev);
3021 struct device *dev = &data->udev->dev;
3022 u16 pin, gap, opcode;
3026 /* Move on if no wakeup pin specified */
3027 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) ||
3028 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap))
3031 /* Vendor specific command to configure a GPIO as wake-up pin */
3032 opcode = hci_opcode_pack(0x3F, 0x59);
3033 cmd[0] = opcode & 0xFF;
3034 cmd[1] = opcode >> 8;
3035 cmd[2] = 2; /* length of parameters that follow */
3037 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */
3039 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
3041 bt_dev_err(hdev, "%s: No memory\n", __func__);
3045 skb_put_data(skb, cmd, sizeof(cmd));
3046 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT;
3048 ret = btusb_send_frame(hdev, skb);
3050 bt_dev_err(hdev, "%s: configuration failed\n", __func__);
3059 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
3060 const bdaddr_t *bdaddr)
3062 struct sk_buff *skb;
3067 buf[1] = sizeof(bdaddr_t);
3068 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
3070 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
3073 bt_dev_err(hdev, "changing Marvell device address failed (%ld)",
3082 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
3083 const bdaddr_t *bdaddr)
3085 struct sk_buff *skb;
3092 buf[3] = sizeof(bdaddr_t);
3093 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
3095 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
3098 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
3106 #define QCA_DFU_PACKET_LEN 4096
3108 #define QCA_GET_TARGET_VERSION 0x09
3109 #define QCA_CHECK_STATUS 0x05
3110 #define QCA_DFU_DOWNLOAD 0x01
3112 #define QCA_SYSCFG_UPDATED 0x40
3113 #define QCA_PATCH_UPDATED 0x80
3114 #define QCA_DFU_TIMEOUT 3000
3116 struct qca_version {
3118 __le32 patch_version;
3124 struct qca_rampatch_version {
3126 __le16 patch_version;
3129 struct qca_device_info {
3131 u8 rampatch_hdr; /* length of header in rampatch */
3132 u8 nvm_hdr; /* length of header in NVM */
3133 u8 ver_offset; /* offset of version structure in rampatch */
3136 static const struct qca_device_info qca_devices_table[] = {
3137 { 0x00000100, 20, 4, 10 }, /* Rome 1.0 */
3138 { 0x00000101, 20, 4, 10 }, /* Rome 1.1 */
3139 { 0x00000200, 28, 4, 18 }, /* Rome 2.0 */
3140 { 0x00000201, 28, 4, 18 }, /* Rome 2.1 */
3141 { 0x00000300, 28, 4, 18 }, /* Rome 3.0 */
3142 { 0x00000302, 28, 4, 18 }, /* Rome 3.2 */
3145 static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request,
3146 void *data, u16 size)
3151 buf = kmalloc(size, GFP_KERNEL);
3155 /* Found some of USB hosts have IOT issues with ours so that we should
3156 * not wait until HCI layer is ready.
3158 pipe = usb_rcvctrlpipe(udev, 0);
3159 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
3160 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
3162 dev_err(&udev->dev, "Failed to access otp area (%d)", err);
3166 memcpy(data, buf, size);
3174 static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
3175 const struct firmware *firmware,
3178 struct btusb_data *btdata = hci_get_drvdata(hdev);
3179 struct usb_device *udev = btdata->udev;
3180 size_t count, size, sent = 0;
3184 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
3188 count = firmware->size;
3190 size = min_t(size_t, count, hdr_size);
3191 memcpy(buf, firmware->data, size);
3193 /* USB patches should go down to controller through USB path
3194 * because binary format fits to go down through USB channel.
3195 * USB control path is for patching headers and USB bulk is for
3198 pipe = usb_sndctrlpipe(udev, 0);
3199 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
3200 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
3202 bt_dev_err(hdev, "Failed to send headers (%d)", err);
3210 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
3212 memcpy(buf, firmware->data + sent, size);
3214 pipe = usb_sndbulkpipe(udev, 0x02);
3215 err = usb_bulk_msg(udev, pipe, buf, size, &len,
3218 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)",
3219 sent, firmware->size, err);
3224 bt_dev_err(hdev, "Failed to get bulk buffer");
3238 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
3239 struct qca_version *ver,
3240 const struct qca_device_info *info)
3242 struct qca_rampatch_version *rver;
3243 const struct firmware *fw;
3244 u32 ver_rom, ver_patch;
3245 u16 rver_rom, rver_patch;
3249 ver_rom = le32_to_cpu(ver->rom_version);
3250 ver_patch = le32_to_cpu(ver->patch_version);
3252 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom);
3254 err = request_firmware(&fw, fwname, &hdev->dev);
3256 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)",
3261 bt_dev_info(hdev, "using rampatch file: %s", fwname);
3263 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
3264 rver_rom = le16_to_cpu(rver->rom_version);
3265 rver_patch = le16_to_cpu(rver->patch_version);
3267 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, "
3268 "firmware rome 0x%x build 0x%x",
3269 rver_rom, rver_patch, ver_rom, ver_patch);
3271 if (rver_rom != ver_rom || rver_patch <= ver_patch) {
3272 bt_dev_err(hdev, "rampatch file version did not match with firmware");
3277 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
3280 release_firmware(fw);
3285 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
3286 struct qca_version *ver,
3287 const struct qca_device_info *info)
3289 const struct firmware *fw;
3293 snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin",
3294 le32_to_cpu(ver->rom_version));
3296 err = request_firmware(&fw, fwname, &hdev->dev);
3298 bt_dev_err(hdev, "failed to request NVM file: %s (%d)",
3303 bt_dev_info(hdev, "using NVM file: %s", fwname);
3305 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
3307 release_firmware(fw);
3312 /* identify the ROM version and check whether patches are needed */
3313 static bool btusb_qca_need_patch(struct usb_device *udev)
3315 struct qca_version ver;
3317 if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3320 /* only low ROM versions need patches */
3321 return !(le32_to_cpu(ver.rom_version) & ~0xffffU);
3324 static int btusb_setup_qca(struct hci_dev *hdev)
3326 struct btusb_data *btdata = hci_get_drvdata(hdev);
3327 struct usb_device *udev = btdata->udev;
3328 const struct qca_device_info *info = NULL;
3329 struct qca_version ver;
3334 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3339 ver_rom = le32_to_cpu(ver.rom_version);
3340 /* Don't care about high ROM versions */
3341 if (ver_rom & ~0xffffU)
3344 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
3345 if (ver_rom == qca_devices_table[i].rom_version)
3346 info = &qca_devices_table[i];
3349 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom);
3353 err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status,
3358 if (!(status & QCA_PATCH_UPDATED)) {
3359 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
3364 if (!(status & QCA_SYSCFG_UPDATED)) {
3365 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
3373 #ifdef CONFIG_BT_HCIBTUSB_BCM
3374 static inline int __set_diag_interface(struct hci_dev *hdev)
3376 struct btusb_data *data = hci_get_drvdata(hdev);
3377 struct usb_interface *intf = data->diag;
3383 data->diag_tx_ep = NULL;
3384 data->diag_rx_ep = NULL;
3386 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
3387 struct usb_endpoint_descriptor *ep_desc;
3389 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
3391 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
3392 data->diag_tx_ep = ep_desc;
3396 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
3397 data->diag_rx_ep = ep_desc;
3402 if (!data->diag_tx_ep || !data->diag_rx_ep) {
3403 bt_dev_err(hdev, "invalid diagnostic descriptors");
3410 static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable)
3412 struct btusb_data *data = hci_get_drvdata(hdev);
3413 struct sk_buff *skb;
3417 if (!data->diag_tx_ep)
3418 return ERR_PTR(-ENODEV);
3420 urb = usb_alloc_urb(0, GFP_KERNEL);
3422 return ERR_PTR(-ENOMEM);
3424 skb = bt_skb_alloc(2, GFP_KERNEL);
3427 return ERR_PTR(-ENOMEM);
3430 skb_put_u8(skb, 0xf0);
3431 skb_put_u8(skb, enable);
3433 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress);
3435 usb_fill_bulk_urb(urb, data->udev, pipe,
3436 skb->data, skb->len, btusb_tx_complete, skb);
3438 skb->dev = (void *)hdev;
3443 static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable)
3445 struct btusb_data *data = hci_get_drvdata(hdev);
3451 if (!test_bit(HCI_RUNNING, &hdev->flags))
3454 urb = alloc_diag_urb(hdev, enable);
3456 return PTR_ERR(urb);
3458 return submit_or_queue_tx_urb(hdev, urb);
3463 static irqreturn_t btusb_oob_wake_handler(int irq, void *priv)
3465 struct btusb_data *data = priv;
3467 pm_wakeup_event(&data->udev->dev, 0);
3470 /* Disable only if not already disabled (keep it balanced) */
3471 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
3472 disable_irq_nosync(irq);
3473 disable_irq_wake(irq);
3478 static const struct of_device_id btusb_match_table[] = {
3479 { .compatible = "usb1286,204e" },
3480 { .compatible = "usbcf3,e300" }, /* QCA6174A */
3481 { .compatible = "usb4ca,301a" }, /* QCA6174A (Lite-On) */
3484 MODULE_DEVICE_TABLE(of, btusb_match_table);
3486 /* Use an oob wakeup pin? */
3487 static int btusb_config_oob_wake(struct hci_dev *hdev)
3489 struct btusb_data *data = hci_get_drvdata(hdev);
3490 struct device *dev = &data->udev->dev;
3493 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
3495 if (!of_match_device(btusb_match_table, dev))
3498 /* Move on if no IRQ specified */
3499 irq = of_irq_get_byname(dev->of_node, "wakeup");
3501 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__);
3505 irq_set_status_flags(irq, IRQ_NOAUTOEN);
3506 ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler,
3507 0, "OOB Wake-on-BT", data);
3509 bt_dev_err(hdev, "%s: IRQ request failed", __func__);
3513 ret = device_init_wakeup(dev, true);
3515 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__);
3519 data->oob_wake_irq = irq;
3520 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq);
3525 static void btusb_check_needs_reset_resume(struct usb_interface *intf)
3527 if (dmi_check_system(btusb_needs_reset_resume_table))
3528 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
3531 static int btusb_probe(struct usb_interface *intf,
3532 const struct usb_device_id *id)
3534 struct usb_endpoint_descriptor *ep_desc;
3535 struct gpio_desc *reset_gpio;
3536 struct btusb_data *data;
3537 struct hci_dev *hdev;
3538 unsigned ifnum_base;
3541 BT_DBG("intf %p id %p", intf, id);
3543 /* interface numbers are hardcoded in the spec */
3544 if (intf->cur_altsetting->desc.bInterfaceNumber != 0) {
3545 if (!(id->driver_info & BTUSB_IFNUM_2))
3547 if (intf->cur_altsetting->desc.bInterfaceNumber != 2)
3551 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber;
3553 if (!id->driver_info) {
3554 const struct usb_device_id *match;
3556 match = usb_match_id(intf, blacklist_table);
3561 if (id->driver_info == BTUSB_IGNORE)
3564 if (id->driver_info & BTUSB_ATH3012) {
3565 struct usb_device *udev = interface_to_usbdev(intf);
3567 /* Old firmware would otherwise let ath3k driver load
3568 * patch and sysconfig files
3570 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 &&
3571 !btusb_qca_need_patch(udev))
3575 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
3579 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
3580 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
3582 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
3583 data->intr_ep = ep_desc;
3587 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
3588 data->bulk_tx_ep = ep_desc;
3592 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
3593 data->bulk_rx_ep = ep_desc;
3598 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
3601 if (id->driver_info & BTUSB_AMP) {
3602 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
3603 data->cmdreq = 0x2b;
3605 data->cmdreq_type = USB_TYPE_CLASS;
3606 data->cmdreq = 0x00;
3609 data->udev = interface_to_usbdev(intf);
3612 INIT_WORK(&data->work, btusb_work);
3613 INIT_WORK(&data->waker, btusb_waker);
3614 init_usb_anchor(&data->deferred);
3615 init_usb_anchor(&data->tx_anchor);
3616 spin_lock_init(&data->txlock);
3618 init_usb_anchor(&data->intr_anchor);
3619 init_usb_anchor(&data->bulk_anchor);
3620 init_usb_anchor(&data->isoc_anchor);
3621 init_usb_anchor(&data->diag_anchor);
3622 init_usb_anchor(&data->ctrl_anchor);
3623 spin_lock_init(&data->rxlock);
3625 if (id->driver_info & BTUSB_INTEL_NEW) {
3626 data->recv_event = btusb_recv_event_intel;
3627 data->recv_bulk = btusb_recv_bulk_intel;
3628 set_bit(BTUSB_BOOTLOADER, &data->flags);
3630 data->recv_event = hci_recv_frame;
3631 data->recv_bulk = btusb_recv_bulk;
3634 hdev = hci_alloc_dev();
3638 hdev->bus = HCI_USB;
3639 hci_set_drvdata(hdev, data);
3641 if (id->driver_info & BTUSB_AMP)
3642 hdev->dev_type = HCI_AMP;
3644 hdev->dev_type = HCI_PRIMARY;
3648 SET_HCIDEV_DEV(hdev, &intf->dev);
3650 reset_gpio = gpiod_get_optional(&data->udev->dev, "reset",
3652 if (IS_ERR(reset_gpio)) {
3653 err = PTR_ERR(reset_gpio);
3655 } else if (reset_gpio) {
3656 data->reset_gpio = reset_gpio;
3659 hdev->open = btusb_open;
3660 hdev->close = btusb_close;
3661 hdev->flush = btusb_flush;
3662 hdev->send = btusb_send_frame;
3663 hdev->notify = btusb_notify;
3666 err = btusb_config_oob_wake(hdev);
3670 /* Marvell devices may need a specific chip configuration */
3671 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) {
3672 err = marvell_config_oob_wake(hdev);
3677 if (id->driver_info & BTUSB_CW6622)
3678 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
3680 if (id->driver_info & BTUSB_BCM2045)
3681 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
3683 if (id->driver_info & BTUSB_BCM92035)
3684 hdev->setup = btusb_setup_bcm92035;
3686 #ifdef CONFIG_BT_HCIBTUSB_BCM
3687 if (id->driver_info & BTUSB_BCM_PATCHRAM) {
3688 hdev->manufacturer = 15;
3689 hdev->setup = btbcm_setup_patchram;
3690 hdev->set_diag = btusb_bcm_set_diag;
3691 hdev->set_bdaddr = btbcm_set_bdaddr;
3693 /* Broadcom LM_DIAG Interface numbers are hardcoded */
3694 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
3697 if (id->driver_info & BTUSB_BCM_APPLE) {
3698 hdev->manufacturer = 15;
3699 hdev->setup = btbcm_setup_apple;
3700 hdev->set_diag = btusb_bcm_set_diag;
3702 /* Broadcom LM_DIAG Interface numbers are hardcoded */
3703 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
3707 if (id->driver_info & BTUSB_INTEL) {
3708 hdev->manufacturer = 2;
3709 hdev->setup = btusb_setup_intel;
3710 hdev->shutdown = btusb_shutdown_intel;
3711 hdev->set_diag = btintel_set_diag_mfg;
3712 hdev->set_bdaddr = btintel_set_bdaddr;
3713 hdev->cmd_timeout = btusb_intel_cmd_timeout;
3714 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
3715 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3716 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks);
3719 if (id->driver_info & BTUSB_INTEL_NEW) {
3720 hdev->manufacturer = 2;
3721 hdev->send = btusb_send_frame_intel;
3722 hdev->setup = btusb_setup_intel_new;
3723 hdev->shutdown = btusb_shutdown_intel_new;
3724 hdev->hw_error = btintel_hw_error;
3725 hdev->set_diag = btintel_set_diag;
3726 hdev->set_bdaddr = btintel_set_bdaddr;
3727 hdev->cmd_timeout = btusb_intel_cmd_timeout;
3728 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
3729 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3730 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks);
3733 if (id->driver_info & BTUSB_MARVELL)
3734 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
3736 #ifdef CONFIG_BT_HCIBTUSB_MTK
3737 if (id->driver_info & BTUSB_MEDIATEK) {
3738 hdev->setup = btusb_mtk_setup;
3739 hdev->shutdown = btusb_mtk_shutdown;
3740 hdev->manufacturer = 70;
3741 set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
3745 if (id->driver_info & BTUSB_SWAVE) {
3746 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
3747 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
3750 if (id->driver_info & BTUSB_INTEL_BOOT) {
3751 hdev->manufacturer = 2;
3752 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
3755 if (id->driver_info & BTUSB_ATH3012) {
3756 data->setup_on_usb = btusb_setup_qca;
3757 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
3758 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3759 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
3762 if (id->driver_info & BTUSB_QCA_ROME) {
3763 data->setup_on_usb = btusb_setup_qca;
3764 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
3765 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3766 btusb_check_needs_reset_resume(intf);
3769 #ifdef CONFIG_BT_HCIBTUSB_RTL
3770 if (id->driver_info & BTUSB_REALTEK) {
3771 hdev->setup = btrtl_setup_realtek;
3772 hdev->shutdown = btrtl_shutdown_realtek;
3774 /* Realtek devices lose their updated firmware over suspend,
3775 * but the USB hub doesn't notice any status change.
3776 * Explicitly request a device reset on resume.
3778 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
3782 if (id->driver_info & BTUSB_AMP) {
3783 /* AMP controllers do not support SCO packets */
3786 /* Interface orders are hardcoded in the specification */
3787 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1);
3788 data->isoc_ifnum = ifnum_base + 1;
3792 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3794 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
3795 if (!disable_scofix)
3796 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
3799 if (id->driver_info & BTUSB_BROKEN_ISOC)
3802 if (id->driver_info & BTUSB_DIGIANSWER) {
3803 data->cmdreq_type = USB_TYPE_VENDOR;
3804 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3807 if (id->driver_info & BTUSB_CSR) {
3808 struct usb_device *udev = data->udev;
3809 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
3811 /* Old firmware would otherwise execute USB reset */
3812 if (bcdDevice < 0x117)
3813 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3815 /* Fake CSR devices with broken commands */
3816 if (bcdDevice <= 0x100 || bcdDevice == 0x134)
3817 hdev->setup = btusb_setup_csr;
3819 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3822 if (id->driver_info & BTUSB_SNIFFER) {
3823 struct usb_device *udev = data->udev;
3825 /* New sniffer firmware has crippled HCI interface */
3826 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
3827 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
3830 if (id->driver_info & BTUSB_INTEL_BOOT) {
3831 /* A bug in the bootloader causes that interrupt interface is
3832 * only enabled after receiving SetInterface(0, AltSetting=0).
3834 err = usb_set_interface(data->udev, 0, 0);
3836 BT_ERR("failed to set interface 0, alt 0 %d", err);
3842 err = usb_driver_claim_interface(&btusb_driver,
3848 #ifdef CONFIG_BT_HCIBTUSB_BCM
3850 if (!usb_driver_claim_interface(&btusb_driver,
3852 __set_diag_interface(hdev);
3858 if (enable_autosuspend)
3859 usb_enable_autosuspend(data->udev);
3861 err = hci_register_dev(hdev);
3865 usb_set_intfdata(intf, data);
3870 if (data->reset_gpio)
3871 gpiod_put(data->reset_gpio);
3876 static void btusb_disconnect(struct usb_interface *intf)
3878 struct btusb_data *data = usb_get_intfdata(intf);
3879 struct hci_dev *hdev;
3881 BT_DBG("intf %p", intf);
3887 usb_set_intfdata(data->intf, NULL);
3890 usb_set_intfdata(data->isoc, NULL);
3893 usb_set_intfdata(data->diag, NULL);
3895 hci_unregister_dev(hdev);
3897 if (intf == data->intf) {
3899 usb_driver_release_interface(&btusb_driver, data->isoc);
3901 usb_driver_release_interface(&btusb_driver, data->diag);
3902 } else if (intf == data->isoc) {
3904 usb_driver_release_interface(&btusb_driver, data->diag);
3905 usb_driver_release_interface(&btusb_driver, data->intf);
3906 } else if (intf == data->diag) {
3907 usb_driver_release_interface(&btusb_driver, data->intf);
3909 usb_driver_release_interface(&btusb_driver, data->isoc);
3912 if (data->oob_wake_irq)
3913 device_init_wakeup(&data->udev->dev, false);
3915 if (data->reset_gpio)
3916 gpiod_put(data->reset_gpio);
3922 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
3924 struct btusb_data *data = usb_get_intfdata(intf);
3926 BT_DBG("intf %p", intf);
3928 if (data->suspend_count++)
3931 spin_lock_irq(&data->txlock);
3932 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
3933 set_bit(BTUSB_SUSPENDING, &data->flags);
3934 spin_unlock_irq(&data->txlock);
3936 spin_unlock_irq(&data->txlock);
3937 data->suspend_count--;
3941 cancel_work_sync(&data->work);
3943 btusb_stop_traffic(data);
3944 usb_kill_anchored_urbs(&data->tx_anchor);
3946 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) {
3947 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
3948 enable_irq_wake(data->oob_wake_irq);
3949 enable_irq(data->oob_wake_irq);
3955 static void play_deferred(struct btusb_data *data)
3960 while ((urb = usb_get_from_anchor(&data->deferred))) {
3961 usb_anchor_urb(urb, &data->tx_anchor);
3963 err = usb_submit_urb(urb, GFP_ATOMIC);
3965 if (err != -EPERM && err != -ENODEV)
3966 BT_ERR("%s urb %p submission failed (%d)",
3967 data->hdev->name, urb, -err);
3968 kfree(urb->setup_packet);
3969 usb_unanchor_urb(urb);
3974 data->tx_in_flight++;
3978 /* Cleanup the rest deferred urbs. */
3979 while ((urb = usb_get_from_anchor(&data->deferred))) {
3980 kfree(urb->setup_packet);
3985 static int btusb_resume(struct usb_interface *intf)
3987 struct btusb_data *data = usb_get_intfdata(intf);
3988 struct hci_dev *hdev = data->hdev;
3991 BT_DBG("intf %p", intf);
3993 if (--data->suspend_count)
3996 /* Disable only if not already disabled (keep it balanced) */
3997 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
3998 disable_irq(data->oob_wake_irq);
3999 disable_irq_wake(data->oob_wake_irq);
4002 if (!test_bit(HCI_RUNNING, &hdev->flags))
4005 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
4006 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
4008 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
4013 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
4014 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
4016 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
4020 btusb_submit_bulk_urb(hdev, GFP_NOIO);
4023 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
4024 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
4025 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
4027 btusb_submit_isoc_urb(hdev, GFP_NOIO);
4030 spin_lock_irq(&data->txlock);
4031 play_deferred(data);
4032 clear_bit(BTUSB_SUSPENDING, &data->flags);
4033 spin_unlock_irq(&data->txlock);
4034 schedule_work(&data->work);
4039 usb_scuttle_anchored_urbs(&data->deferred);
4041 spin_lock_irq(&data->txlock);
4042 clear_bit(BTUSB_SUSPENDING, &data->flags);
4043 spin_unlock_irq(&data->txlock);
4049 static struct usb_driver btusb_driver = {
4051 .probe = btusb_probe,
4052 .disconnect = btusb_disconnect,
4054 .suspend = btusb_suspend,
4055 .resume = btusb_resume,
4057 .id_table = btusb_table,
4058 .supports_autosuspend = 1,
4059 .disable_hub_initiated_lpm = 1,
4062 module_usb_driver(btusb_driver);
4064 module_param(disable_scofix, bool, 0644);
4065 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
4067 module_param(force_scofix, bool, 0644);
4068 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
4070 module_param(enable_autosuspend, bool, 0644);
4071 MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default");
4073 module_param(reset, bool, 0644);
4074 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
4076 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
4077 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
4078 MODULE_VERSION(VERSION);
4079 MODULE_LICENSE("GPL");