1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 *
4 * Generic Bluetooth USB driver
5 *
6 * Copyright (C) 2005-2008 Marcel Holtmann <marcel@holtmann.org>
7 */
8
9 #include <linux/dmi.h>
10 #include <linux/module.h>
11 #include <linux/usb.h>
12 #include <linux/usb/quirks.h>
13 #include <linux/firmware.h>
14 #include <linux/iopoll.h>
15 #include <linux/of_device.h>
16 #include <linux/of_irq.h>
17 #include <linux/suspend.h>
18 #include <linux/gpio/consumer.h>
19 #include <linux/debugfs.h>
20 #include <linux/unaligned.h>
21
22 #include <net/bluetooth/bluetooth.h>
23 #include <net/bluetooth/hci_core.h>
24 #include <net/bluetooth/hci_drv.h>
25
26 #include "btintel.h"
27 #include "btbcm.h"
28 #include "btrtl.h"
29 #include "btmtk.h"
30
31 #define VERSION "0.8"
32
33 static bool disable_scofix;
34 static bool force_scofix;
35 static bool enable_autosuspend = IS_ENABLED(CONFIG_BT_HCIBTUSB_AUTOSUSPEND);
36 static bool enable_poll_sync = IS_ENABLED(CONFIG_BT_HCIBTUSB_POLL_SYNC);
37 static bool reset = true;
38
39 static struct usb_driver btusb_driver;
40
41 #define BTUSB_IGNORE BIT(0)
42 #define BTUSB_DIGIANSWER BIT(1)
43 #define BTUSB_CSR BIT(2)
44 #define BTUSB_SNIFFER BIT(3)
45 #define BTUSB_BCM92035 BIT(4)
46 #define BTUSB_BROKEN_ISOC BIT(5)
47 #define BTUSB_WRONG_SCO_MTU BIT(6)
48 #define BTUSB_ATH3012 BIT(7)
49 #define BTUSB_INTEL_COMBINED BIT(8)
50 #define BTUSB_INTEL_BOOT BIT(9)
51 #define BTUSB_BCM_PATCHRAM BIT(10)
52 #define BTUSB_MARVELL BIT(11)
53 #define BTUSB_SWAVE BIT(12)
54 #define BTUSB_AMP BIT(13)
55 #define BTUSB_QCA_ROME BIT(14)
56 #define BTUSB_BCM_APPLE BIT(15)
57 #define BTUSB_REALTEK BIT(16)
58 #define BTUSB_BCM2045 BIT(17)
59 #define BTUSB_IFNUM_2 BIT(18)
60 #define BTUSB_CW6622 BIT(19)
61 #define BTUSB_MEDIATEK BIT(20)
62 #define BTUSB_WIDEBAND_SPEECH BIT(21)
63 #define BTUSB_INVALID_LE_STATES BIT(22)
64 #define BTUSB_QCA_WCN6855 BIT(23)
65 #define BTUSB_INTEL_BROKEN_SHUTDOWN_LED BIT(24)
66 #define BTUSB_INTEL_BROKEN_INITIAL_NCMD BIT(25)
67 #define BTUSB_INTEL_NO_WBS_SUPPORT BIT(26)
68 #define BTUSB_ACTIONS_SEMI BIT(27)
69 #define BTUSB_BARROT BIT(28)
70
71 static const struct usb_device_id btusb_table[] = {
72 /* Generic Bluetooth USB device */
73 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
74
75 /* Generic Bluetooth AMP device */
76 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP },
77
78 /* Generic Bluetooth USB interface */
79 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) },
80
81 /* Apple-specific (Broadcom) devices */
82 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01),
83 .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 },
84
85 /* MediaTek MT76x0E */
86 { USB_DEVICE(0x0e8d, 0x763f) },
87
88 /* Broadcom SoftSailing reporting vendor specific */
89 { USB_DEVICE(0x0a5c, 0x21e1) },
90
91 /* Apple MacBookPro 7,1 */
92 { USB_DEVICE(0x05ac, 0x8213) },
93
94 /* Apple iMac11,1 */
95 { USB_DEVICE(0x05ac, 0x8215) },
96
97 /* Apple MacBookPro6,2 */
98 { USB_DEVICE(0x05ac, 0x8218) },
99
100 /* Apple MacBookAir3,1, MacBookAir3,2 */
101 { USB_DEVICE(0x05ac, 0x821b) },
102
103 /* Apple MacBookAir4,1 */
104 { USB_DEVICE(0x05ac, 0x821f) },
105
106 /* Apple MacBookPro8,2 */
107 { USB_DEVICE(0x05ac, 0x821a) },
108
109 /* Apple MacMini5,1 */
110 { USB_DEVICE(0x05ac, 0x8281) },
111
112 /* AVM BlueFRITZ! USB v2.0 */
113 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE },
114
115 /* Bluetooth Ultraport Module from IBM */
116 { USB_DEVICE(0x04bf, 0x030a) },
117
118 /* ALPS Modules with non-standard id */
119 { USB_DEVICE(0x044e, 0x3001) },
120 { USB_DEVICE(0x044e, 0x3002) },
121
122 /* Ericsson with non-standard id */
123 { USB_DEVICE(0x0bdb, 0x1002) },
124
125 /* Canyon CN-BTU1 with HID interfaces */
126 { USB_DEVICE(0x0c10, 0x0000) },
127
128 /* Broadcom BCM20702B0 (Dynex/Insignia) */
129 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM },
130
131 /* Broadcom BCM43142A0 (Foxconn/Lenovo) */
132 { USB_VENDOR_AND_INTERFACE_INFO(0x105b, 0xff, 0x01, 0x01),
133 .driver_info = BTUSB_BCM_PATCHRAM },
134
135 /* Broadcom BCM920703 (HTC Vive) */
136 { USB_VENDOR_AND_INTERFACE_INFO(0x0bb4, 0xff, 0x01, 0x01),
137 .driver_info = BTUSB_BCM_PATCHRAM },
138
139 /* Foxconn - Hon Hai */
140 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01),
141 .driver_info = BTUSB_BCM_PATCHRAM },
142
143 /* Lite-On Technology - Broadcom based */
144 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01),
145 .driver_info = BTUSB_BCM_PATCHRAM },
146
147 /* Broadcom devices with vendor specific id */
148 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01),
149 .driver_info = BTUSB_BCM_PATCHRAM },
150
151 /* ASUSTek Computer - Broadcom based */
152 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01),
153 .driver_info = BTUSB_BCM_PATCHRAM },
154
155 /* Belkin F8065bf - Broadcom based */
156 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01),
157 .driver_info = BTUSB_BCM_PATCHRAM },
158
159 /* IMC Networks - Broadcom based */
160 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01),
161 .driver_info = BTUSB_BCM_PATCHRAM },
162
163 /* Dell Computer - Broadcom based */
164 { USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01),
165 .driver_info = BTUSB_BCM_PATCHRAM },
166
167 /* Toshiba Corp - Broadcom based */
168 { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01),
169 .driver_info = BTUSB_BCM_PATCHRAM },
170
171 /* Intel Bluetooth USB Bootloader (RAM module) */
172 { USB_DEVICE(0x8087, 0x0a5a),
173 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
174
175 { } /* Terminating entry */
176 };
177
178 MODULE_DEVICE_TABLE(usb, btusb_table);
179
180 static const struct usb_device_id quirks_table[] = {
181 /* CSR BlueCore devices */
182 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
183
184 /* Broadcom BCM2033 without firmware */
185 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
186
187 /* Broadcom BCM2045 devices */
188 { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 },
189
190 /* Atheros 3011 with sflash firmware */
191 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
192 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
193 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE },
194 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
195 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
196 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
197 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
198
199 /* Atheros AR9285 Malbec with sflash firmware */
200 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
201
202 /* Atheros 3012 with sflash firmware */
203 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
204 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
205 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
206 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
207 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
208 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
209 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
210 { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 },
211 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
212 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
213 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
214 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
215 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
216 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
217 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
218 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
219 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
220 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
221 { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 },
222 { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 },
223 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
224 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
225 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
226 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
227 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
228 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
229 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
230 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
231 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
232 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
233 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
234 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
235 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
236 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 },
237 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
238 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
239 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
240 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
241 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
242 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
243 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
244 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 },
245 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
246 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
247 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
248 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
249 { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 },
250 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
251 { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 },
252 { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 },
253
254 /* Atheros AR5BBU12 with sflash firmware */
255 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
256
257 /* Atheros AR5BBU12 with sflash firmware */
258 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
259 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
260
261 /* QCA ROME chipset */
262 { USB_DEVICE(0x0cf3, 0x535b), .driver_info = BTUSB_QCA_ROME |
263 BTUSB_WIDEBAND_SPEECH },
264 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME |
265 BTUSB_WIDEBAND_SPEECH },
266 { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME |
267 BTUSB_WIDEBAND_SPEECH },
268 { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME |
269 BTUSB_WIDEBAND_SPEECH },
270 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME |
271 BTUSB_WIDEBAND_SPEECH },
272 { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME |
273 BTUSB_WIDEBAND_SPEECH },
274 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME |
275 BTUSB_WIDEBAND_SPEECH },
276 { USB_DEVICE(0x0cf3, 0xe500), .driver_info = BTUSB_QCA_ROME |
277 BTUSB_WIDEBAND_SPEECH },
278 { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME |
279 BTUSB_WIDEBAND_SPEECH },
280 { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME |
281 BTUSB_WIDEBAND_SPEECH },
282 { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME |
283 BTUSB_WIDEBAND_SPEECH },
284 { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME |
285 BTUSB_WIDEBAND_SPEECH },
286 { USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME |
287 BTUSB_WIDEBAND_SPEECH },
288 { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME |
289 BTUSB_WIDEBAND_SPEECH },
290 { USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME |
291 BTUSB_WIDEBAND_SPEECH },
292 { USB_DEVICE(0x04ca, 0x3021), .driver_info = BTUSB_QCA_ROME |
293 BTUSB_WIDEBAND_SPEECH },
294 { USB_DEVICE(0x13d3, 0x3491), .driver_info = BTUSB_QCA_ROME |
295 BTUSB_WIDEBAND_SPEECH },
296 { USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME |
297 BTUSB_WIDEBAND_SPEECH },
298 { USB_DEVICE(0x13d3, 0x3501), .driver_info = BTUSB_QCA_ROME |
299 BTUSB_WIDEBAND_SPEECH },
300
301 /* QCA WCN6855 chipset */
302 { USB_DEVICE(0x0489, 0xe0c7), .driver_info = BTUSB_QCA_WCN6855 |
303 BTUSB_WIDEBAND_SPEECH },
304 { USB_DEVICE(0x0489, 0xe0c9), .driver_info = BTUSB_QCA_WCN6855 |
305 BTUSB_WIDEBAND_SPEECH },
306 { USB_DEVICE(0x0489, 0xe0ca), .driver_info = BTUSB_QCA_WCN6855 |
307 BTUSB_WIDEBAND_SPEECH },
308 { USB_DEVICE(0x0489, 0xe0cb), .driver_info = BTUSB_QCA_WCN6855 |
309 BTUSB_WIDEBAND_SPEECH },
310 { USB_DEVICE(0x0489, 0xe0cc), .driver_info = BTUSB_QCA_WCN6855 |
311 BTUSB_WIDEBAND_SPEECH },
312 { USB_DEVICE(0x0489, 0xe0ce), .driver_info = BTUSB_QCA_WCN6855 |
313 BTUSB_WIDEBAND_SPEECH },
314 { USB_DEVICE(0x0489, 0xe0d0), .driver_info = BTUSB_QCA_WCN6855 |
315 BTUSB_WIDEBAND_SPEECH },
316 { USB_DEVICE(0x0489, 0xe0d6), .driver_info = BTUSB_QCA_WCN6855 |
317 BTUSB_WIDEBAND_SPEECH },
318 { USB_DEVICE(0x0489, 0xe0de), .driver_info = BTUSB_QCA_WCN6855 |
319 BTUSB_WIDEBAND_SPEECH },
320 { USB_DEVICE(0x0489, 0xe0df), .driver_info = BTUSB_QCA_WCN6855 |
321 BTUSB_WIDEBAND_SPEECH },
322 { USB_DEVICE(0x0489, 0xe0e1), .driver_info = BTUSB_QCA_WCN6855 |
323 BTUSB_WIDEBAND_SPEECH },
324 { USB_DEVICE(0x0489, 0xe0e3), .driver_info = BTUSB_QCA_WCN6855 |
325 BTUSB_WIDEBAND_SPEECH },
326 { USB_DEVICE(0x0489, 0xe0ea), .driver_info = BTUSB_QCA_WCN6855 |
327 BTUSB_WIDEBAND_SPEECH },
328 { USB_DEVICE(0x0489, 0xe0ec), .driver_info = BTUSB_QCA_WCN6855 |
329 BTUSB_WIDEBAND_SPEECH },
330 { USB_DEVICE(0x04ca, 0x3022), .driver_info = BTUSB_QCA_WCN6855 |
331 BTUSB_WIDEBAND_SPEECH },
332 { USB_DEVICE(0x04ca, 0x3023), .driver_info = BTUSB_QCA_WCN6855 |
333 BTUSB_WIDEBAND_SPEECH },
334 { USB_DEVICE(0x04ca, 0x3024), .driver_info = BTUSB_QCA_WCN6855 |
335 BTUSB_WIDEBAND_SPEECH },
336 { USB_DEVICE(0x04ca, 0x3a22), .driver_info = BTUSB_QCA_WCN6855 |
337 BTUSB_WIDEBAND_SPEECH },
338 { USB_DEVICE(0x04ca, 0x3a24), .driver_info = BTUSB_QCA_WCN6855 |
339 BTUSB_WIDEBAND_SPEECH },
340 { USB_DEVICE(0x04ca, 0x3a26), .driver_info = BTUSB_QCA_WCN6855 |
341 BTUSB_WIDEBAND_SPEECH },
342 { USB_DEVICE(0x04ca, 0x3a27), .driver_info = BTUSB_QCA_WCN6855 |
343 BTUSB_WIDEBAND_SPEECH },
344 { USB_DEVICE(0x0cf3, 0xe600), .driver_info = BTUSB_QCA_WCN6855 |
345 BTUSB_WIDEBAND_SPEECH },
346 { USB_DEVICE(0x10ab, 0x9108), .driver_info = BTUSB_QCA_WCN6855 |
347 BTUSB_WIDEBAND_SPEECH },
348 { USB_DEVICE(0x10ab, 0x9109), .driver_info = BTUSB_QCA_WCN6855 |
349 BTUSB_WIDEBAND_SPEECH },
350 { USB_DEVICE(0x10ab, 0x9208), .driver_info = BTUSB_QCA_WCN6855 |
351 BTUSB_WIDEBAND_SPEECH },
352 { USB_DEVICE(0x10ab, 0x9209), .driver_info = BTUSB_QCA_WCN6855 |
353 BTUSB_WIDEBAND_SPEECH },
354 { USB_DEVICE(0x10ab, 0x9308), .driver_info = BTUSB_QCA_WCN6855 |
355 BTUSB_WIDEBAND_SPEECH },
356 { USB_DEVICE(0x10ab, 0x9309), .driver_info = BTUSB_QCA_WCN6855 |
357 BTUSB_WIDEBAND_SPEECH },
358 { USB_DEVICE(0x10ab, 0x9408), .driver_info = BTUSB_QCA_WCN6855 |
359 BTUSB_WIDEBAND_SPEECH },
360 { USB_DEVICE(0x10ab, 0x9409), .driver_info = BTUSB_QCA_WCN6855 |
361 BTUSB_WIDEBAND_SPEECH },
362 { USB_DEVICE(0x10ab, 0x9508), .driver_info = BTUSB_QCA_WCN6855 |
363 BTUSB_WIDEBAND_SPEECH },
364 { USB_DEVICE(0x10ab, 0x9509), .driver_info = BTUSB_QCA_WCN6855 |
365 BTUSB_WIDEBAND_SPEECH },
366 { USB_DEVICE(0x10ab, 0x9608), .driver_info = BTUSB_QCA_WCN6855 |
367 BTUSB_WIDEBAND_SPEECH },
368 { USB_DEVICE(0x10ab, 0x9609), .driver_info = BTUSB_QCA_WCN6855 |
369 BTUSB_WIDEBAND_SPEECH },
370 { USB_DEVICE(0x10ab, 0x9f09), .driver_info = BTUSB_QCA_WCN6855 |
371 BTUSB_WIDEBAND_SPEECH },
372 { USB_DEVICE(0x28de, 0x1401), .driver_info = BTUSB_QCA_WCN6855 |
373 BTUSB_WIDEBAND_SPEECH },
374
375 /* QCA WCN785x chipset */
376 { USB_DEVICE(0x0cf3, 0xe700), .driver_info = BTUSB_QCA_WCN6855 |
377 BTUSB_WIDEBAND_SPEECH },
378 { USB_DEVICE(0x0489, 0xe0fc), .driver_info = BTUSB_QCA_WCN6855 |
379 BTUSB_WIDEBAND_SPEECH },
380 { USB_DEVICE(0x0489, 0xe0f3), .driver_info = BTUSB_QCA_WCN6855 |
381 BTUSB_WIDEBAND_SPEECH },
382 { USB_DEVICE(0x0489, 0xe100), .driver_info = BTUSB_QCA_WCN6855 |
383 BTUSB_WIDEBAND_SPEECH },
384 { USB_DEVICE(0x0489, 0xe103), .driver_info = BTUSB_QCA_WCN6855 |
385 BTUSB_WIDEBAND_SPEECH },
386 { USB_DEVICE(0x0489, 0xe10a), .driver_info = BTUSB_QCA_WCN6855 |
387 BTUSB_WIDEBAND_SPEECH },
388 { USB_DEVICE(0x0489, 0xe10d), .driver_info = BTUSB_QCA_WCN6855 |
389 BTUSB_WIDEBAND_SPEECH },
390 { USB_DEVICE(0x0489, 0xe11b), .driver_info = BTUSB_QCA_WCN6855 |
391 BTUSB_WIDEBAND_SPEECH },
392 { USB_DEVICE(0x0489, 0xe11c), .driver_info = BTUSB_QCA_WCN6855 |
393 BTUSB_WIDEBAND_SPEECH },
394 { USB_DEVICE(0x0489, 0xe11f), .driver_info = BTUSB_QCA_WCN6855 |
395 BTUSB_WIDEBAND_SPEECH },
396 { USB_DEVICE(0x0489, 0xe141), .driver_info = BTUSB_QCA_WCN6855 |
397 BTUSB_WIDEBAND_SPEECH },
398 { USB_DEVICE(0x0489, 0xe14a), .driver_info = BTUSB_QCA_WCN6855 |
399 BTUSB_WIDEBAND_SPEECH },
400 { USB_DEVICE(0x0489, 0xe14b), .driver_info = BTUSB_QCA_WCN6855 |
401 BTUSB_WIDEBAND_SPEECH },
402 { USB_DEVICE(0x0489, 0xe14d), .driver_info = BTUSB_QCA_WCN6855 |
403 BTUSB_WIDEBAND_SPEECH },
404 { USB_DEVICE(0x13d3, 0x3623), .driver_info = BTUSB_QCA_WCN6855 |
405 BTUSB_WIDEBAND_SPEECH },
406 { USB_DEVICE(0x13d3, 0x3624), .driver_info = BTUSB_QCA_WCN6855 |
407 BTUSB_WIDEBAND_SPEECH },
408 { USB_DEVICE(0x2c7c, 0x0130), .driver_info = BTUSB_QCA_WCN6855 |
409 BTUSB_WIDEBAND_SPEECH },
410 { USB_DEVICE(0x2c7c, 0x0131), .driver_info = BTUSB_QCA_WCN6855 |
411 BTUSB_WIDEBAND_SPEECH },
412 { USB_DEVICE(0x2c7c, 0x0132), .driver_info = BTUSB_QCA_WCN6855 |
413 BTUSB_WIDEBAND_SPEECH },
414
415 /* Broadcom BCM2035 */
416 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
417 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
418 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
419
420 /* Broadcom BCM2045 */
421 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
422 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
423
424 /* IBM/Lenovo ThinkPad with Broadcom chip */
425 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
426 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
427
428 /* HP laptop with Broadcom chip */
429 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
430
431 /* Dell laptop with Broadcom chip */
432 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
433
434 /* Dell Wireless 370 and 410 devices */
435 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
436 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
437
438 /* Belkin F8T012 and F8T013 devices */
439 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
440 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
441
442 /* Asus WL-BTD202 device */
443 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
444
445 /* Kensington Bluetooth USB adapter */
446 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
447
448 /* RTX Telecom based adapters with buggy SCO support */
449 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
450 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
451
452 /* CONWISE Technology based adapters with buggy SCO support */
453 { USB_DEVICE(0x0e5e, 0x6622),
454 .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622},
455
456 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
457 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE },
458
459 /* Digianswer devices */
460 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
461 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
462
463 /* CSR BlueCore Bluetooth Sniffer */
464 { USB_DEVICE(0x0a12, 0x0002),
465 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
466
467 /* Frontline ComProbe Bluetooth Sniffer */
468 { USB_DEVICE(0x16d3, 0x0002),
469 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
470
471 /* Marvell Bluetooth devices */
472 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
473 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
474 { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL },
475
476 /* Intel Bluetooth devices */
477 { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_COMBINED },
478 { USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_COMBINED },
479 { USB_DEVICE(0x8087, 0x0029), .driver_info = BTUSB_INTEL_COMBINED },
480 { USB_DEVICE(0x8087, 0x0032), .driver_info = BTUSB_INTEL_COMBINED },
481 { USB_DEVICE(0x8087, 0x0033), .driver_info = BTUSB_INTEL_COMBINED },
482 { USB_DEVICE(0x8087, 0x0035), .driver_info = BTUSB_INTEL_COMBINED },
483 { USB_DEVICE(0x8087, 0x0036), .driver_info = BTUSB_INTEL_COMBINED },
484 { USB_DEVICE(0x8087, 0x0037), .driver_info = BTUSB_INTEL_COMBINED },
485 { USB_DEVICE(0x8087, 0x0038), .driver_info = BTUSB_INTEL_COMBINED },
486 { USB_DEVICE(0x8087, 0x0039), .driver_info = BTUSB_INTEL_COMBINED },
487 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
488 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL_COMBINED |
489 BTUSB_INTEL_NO_WBS_SUPPORT |
490 BTUSB_INTEL_BROKEN_INITIAL_NCMD |
491 BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
492 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL_COMBINED |
493 BTUSB_INTEL_NO_WBS_SUPPORT |
494 BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
495 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_COMBINED },
496 { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL_COMBINED |
497 BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
498 { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_COMBINED },
499
500 /* Other Intel Bluetooth devices */
501 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
502 .driver_info = BTUSB_IGNORE },
503
504 /* Realtek 8821CE Bluetooth devices */
505 { USB_DEVICE(0x13d3, 0x3529), .driver_info = BTUSB_REALTEK |
506 BTUSB_WIDEBAND_SPEECH },
507 { USB_DEVICE(0x13d3, 0x3533), .driver_info = BTUSB_REALTEK |
508 BTUSB_WIDEBAND_SPEECH },
509
510 /* Realtek 8822CE Bluetooth devices */
511 { USB_DEVICE(0x0bda, 0xb00c), .driver_info = BTUSB_REALTEK |
512 BTUSB_WIDEBAND_SPEECH },
513 { USB_DEVICE(0x0bda, 0xc822), .driver_info = BTUSB_REALTEK |
514 BTUSB_WIDEBAND_SPEECH },
515
516 /* Realtek 8822CU Bluetooth devices */
517 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK |
518 BTUSB_WIDEBAND_SPEECH },
519
520 /* Realtek 8851BE Bluetooth devices */
521 { USB_DEVICE(0x0bda, 0xb850), .driver_info = BTUSB_REALTEK },
522 { USB_DEVICE(0x13d3, 0x3600), .driver_info = BTUSB_REALTEK },
523 { USB_DEVICE(0x13d3, 0x3601), .driver_info = BTUSB_REALTEK },
524 { USB_DEVICE(0x0489, 0xe112), .driver_info = BTUSB_REALTEK |
525 BTUSB_WIDEBAND_SPEECH },
526
527 /* Realtek 8851BU Bluetooth devices */
528 { USB_DEVICE(0x3625, 0x010b), .driver_info = BTUSB_REALTEK |
529 BTUSB_WIDEBAND_SPEECH },
530 { USB_DEVICE(0x2001, 0x332a), .driver_info = BTUSB_REALTEK |
531 BTUSB_WIDEBAND_SPEECH },
532 { USB_DEVICE(0x7392, 0xe611), .driver_info = BTUSB_REALTEK |
533 BTUSB_WIDEBAND_SPEECH },
534
535 /* Realtek 8852AE Bluetooth devices */
536 { USB_DEVICE(0x0bda, 0x2852), .driver_info = BTUSB_REALTEK |
537 BTUSB_WIDEBAND_SPEECH },
538 { USB_DEVICE(0x0bda, 0xc852), .driver_info = BTUSB_REALTEK |
539 BTUSB_WIDEBAND_SPEECH },
540 { USB_DEVICE(0x0bda, 0x385a), .driver_info = BTUSB_REALTEK |
541 BTUSB_WIDEBAND_SPEECH },
542 { USB_DEVICE(0x0bda, 0x4852), .driver_info = BTUSB_REALTEK |
543 BTUSB_WIDEBAND_SPEECH },
544 { USB_DEVICE(0x04c5, 0x165c), .driver_info = BTUSB_REALTEK |
545 BTUSB_WIDEBAND_SPEECH },
546 { USB_DEVICE(0x04ca, 0x4006), .driver_info = BTUSB_REALTEK |
547 BTUSB_WIDEBAND_SPEECH },
548 { USB_DEVICE(0x0cb8, 0xc549), .driver_info = BTUSB_REALTEK |
549 BTUSB_WIDEBAND_SPEECH },
550
551 /* Realtek 8852CE Bluetooth devices */
552 { USB_DEVICE(0x04ca, 0x4007), .driver_info = BTUSB_REALTEK |
553 BTUSB_WIDEBAND_SPEECH },
554 { USB_DEVICE(0x04c5, 0x1675), .driver_info = BTUSB_REALTEK |
555 BTUSB_WIDEBAND_SPEECH },
556 { USB_DEVICE(0x0cb8, 0xc558), .driver_info = BTUSB_REALTEK |
557 BTUSB_WIDEBAND_SPEECH },
558 { USB_DEVICE(0x13d3, 0x3587), .driver_info = BTUSB_REALTEK |
559 BTUSB_WIDEBAND_SPEECH },
560 { USB_DEVICE(0x13d3, 0x3586), .driver_info = BTUSB_REALTEK |
561 BTUSB_WIDEBAND_SPEECH },
562 { USB_DEVICE(0x13d3, 0x3592), .driver_info = BTUSB_REALTEK |
563 BTUSB_WIDEBAND_SPEECH },
564 { USB_DEVICE(0x13d3, 0x3612), .driver_info = BTUSB_REALTEK |
565 BTUSB_WIDEBAND_SPEECH },
566 { USB_DEVICE(0x0489, 0xe122), .driver_info = BTUSB_REALTEK |
567 BTUSB_WIDEBAND_SPEECH },
568
569 /* Realtek 8852BE Bluetooth devices */
570 { USB_DEVICE(0x0cb8, 0xc559), .driver_info = BTUSB_REALTEK |
571 BTUSB_WIDEBAND_SPEECH },
572 { USB_DEVICE(0x0bda, 0x4853), .driver_info = BTUSB_REALTEK |
573 BTUSB_WIDEBAND_SPEECH },
574 { USB_DEVICE(0x0bda, 0x887b), .driver_info = BTUSB_REALTEK |
575 BTUSB_WIDEBAND_SPEECH },
576 { USB_DEVICE(0x0bda, 0xb85b), .driver_info = BTUSB_REALTEK |
577 BTUSB_WIDEBAND_SPEECH },
578 { USB_DEVICE(0x13d3, 0x3570), .driver_info = BTUSB_REALTEK |
579 BTUSB_WIDEBAND_SPEECH },
580 { USB_DEVICE(0x13d3, 0x3571), .driver_info = BTUSB_REALTEK |
581 BTUSB_WIDEBAND_SPEECH },
582 { USB_DEVICE(0x13d3, 0x3572), .driver_info = BTUSB_REALTEK |
583 BTUSB_WIDEBAND_SPEECH },
584 { USB_DEVICE(0x13d3, 0x3591), .driver_info = BTUSB_REALTEK |
585 BTUSB_WIDEBAND_SPEECH },
586 { USB_DEVICE(0x0489, 0xe123), .driver_info = BTUSB_REALTEK |
587 BTUSB_WIDEBAND_SPEECH },
588 { USB_DEVICE(0x0489, 0xe125), .driver_info = BTUSB_REALTEK |
589 BTUSB_WIDEBAND_SPEECH },
590
591 /* Realtek 8852BT/8852BE-VT Bluetooth devices */
592 { USB_DEVICE(0x0bda, 0x8520), .driver_info = BTUSB_REALTEK |
593 BTUSB_WIDEBAND_SPEECH },
594 { USB_DEVICE(0x0489, 0xe12f), .driver_info = BTUSB_REALTEK |
595 BTUSB_WIDEBAND_SPEECH },
596 { USB_DEVICE(0x13d3, 0x3618), .driver_info = BTUSB_REALTEK |
597 BTUSB_WIDEBAND_SPEECH },
598 { USB_DEVICE(0x13d3, 0x3619), .driver_info = BTUSB_REALTEK |
599 BTUSB_WIDEBAND_SPEECH },
600
601 /* Realtek 8922AE Bluetooth devices */
602 { USB_DEVICE(0x0bda, 0x8922), .driver_info = BTUSB_REALTEK |
603 BTUSB_WIDEBAND_SPEECH },
604 { USB_DEVICE(0x13d3, 0x3617), .driver_info = BTUSB_REALTEK |
605 BTUSB_WIDEBAND_SPEECH },
606 { USB_DEVICE(0x13d3, 0x3616), .driver_info = BTUSB_REALTEK |
607 BTUSB_WIDEBAND_SPEECH },
608 { USB_DEVICE(0x0489, 0xe130), .driver_info = BTUSB_REALTEK |
609 BTUSB_WIDEBAND_SPEECH },
610
611 /* Realtek Bluetooth devices */
612 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
613 .driver_info = BTUSB_REALTEK },
614
615 /* MediaTek Bluetooth devices */
616 { USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01),
617 .driver_info = BTUSB_MEDIATEK |
618 BTUSB_WIDEBAND_SPEECH },
619
620 /* Additional MediaTek MT7615E Bluetooth devices */
621 { USB_DEVICE(0x13d3, 0x3560), .driver_info = BTUSB_MEDIATEK},
622
623 /* Additional MediaTek MT7663 Bluetooth devices */
624 { USB_DEVICE(0x043e, 0x310c), .driver_info = BTUSB_MEDIATEK |
625 BTUSB_WIDEBAND_SPEECH },
626 { USB_DEVICE(0x04ca, 0x3801), .driver_info = BTUSB_MEDIATEK |
627 BTUSB_WIDEBAND_SPEECH },
628
629 /* Additional MediaTek MT7668 Bluetooth devices */
630 { USB_DEVICE(0x043e, 0x3109), .driver_info = BTUSB_MEDIATEK |
631 BTUSB_WIDEBAND_SPEECH },
632
633 /* Additional MediaTek MT7920 Bluetooth devices */
634 { USB_DEVICE(0x0489, 0xe134), .driver_info = BTUSB_MEDIATEK |
635 BTUSB_WIDEBAND_SPEECH },
636 { USB_DEVICE(0x0489, 0xe135), .driver_info = BTUSB_MEDIATEK |
637 BTUSB_WIDEBAND_SPEECH },
638 { USB_DEVICE(0x13d3, 0x3620), .driver_info = BTUSB_MEDIATEK |
639 BTUSB_WIDEBAND_SPEECH },
640 { USB_DEVICE(0x13d3, 0x3621), .driver_info = BTUSB_MEDIATEK |
641 BTUSB_WIDEBAND_SPEECH },
642 { USB_DEVICE(0x13d3, 0x3622), .driver_info = BTUSB_MEDIATEK |
643 BTUSB_WIDEBAND_SPEECH },
644 { USB_DEVICE(0x0489, 0xe158), .driver_info = BTUSB_MEDIATEK |
645 BTUSB_WIDEBAND_SPEECH },
646
647 /* Additional MediaTek MT7921 Bluetooth devices */
648 { USB_DEVICE(0x0489, 0xe0c8), .driver_info = BTUSB_MEDIATEK |
649 BTUSB_WIDEBAND_SPEECH },
650 { USB_DEVICE(0x0489, 0xe0cd), .driver_info = BTUSB_MEDIATEK |
651 BTUSB_WIDEBAND_SPEECH },
652 { USB_DEVICE(0x0489, 0xe0e0), .driver_info = BTUSB_MEDIATEK |
653 BTUSB_WIDEBAND_SPEECH },
654 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK |
655 BTUSB_WIDEBAND_SPEECH },
656 { USB_DEVICE(0x04ca, 0x3802), .driver_info = BTUSB_MEDIATEK |
657 BTUSB_WIDEBAND_SPEECH },
658 { USB_DEVICE(0x0e8d, 0x0608), .driver_info = BTUSB_MEDIATEK |
659 BTUSB_WIDEBAND_SPEECH },
660 { USB_DEVICE(0x13d3, 0x3563), .driver_info = BTUSB_MEDIATEK |
661 BTUSB_WIDEBAND_SPEECH },
662 { USB_DEVICE(0x13d3, 0x3564), .driver_info = BTUSB_MEDIATEK |
663 BTUSB_WIDEBAND_SPEECH },
664 { USB_DEVICE(0x13d3, 0x3567), .driver_info = BTUSB_MEDIATEK |
665 BTUSB_WIDEBAND_SPEECH },
666 { USB_DEVICE(0x13d3, 0x3576), .driver_info = BTUSB_MEDIATEK |
667 BTUSB_WIDEBAND_SPEECH },
668 { USB_DEVICE(0x13d3, 0x3578), .driver_info = BTUSB_MEDIATEK |
669 BTUSB_WIDEBAND_SPEECH },
670 { USB_DEVICE(0x13d3, 0x3583), .driver_info = BTUSB_MEDIATEK |
671 BTUSB_WIDEBAND_SPEECH },
672 { USB_DEVICE(0x13d3, 0x3606), .driver_info = BTUSB_MEDIATEK |
673 BTUSB_WIDEBAND_SPEECH },
674
675 /* MediaTek MT7922 Bluetooth devices */
676 { USB_DEVICE(0x13d3, 0x3585), .driver_info = BTUSB_MEDIATEK |
677 BTUSB_WIDEBAND_SPEECH },
678 { USB_DEVICE(0x13d3, 0x3610), .driver_info = BTUSB_MEDIATEK |
679 BTUSB_WIDEBAND_SPEECH },
680
681 /* MediaTek MT7922A Bluetooth devices */
682 { USB_DEVICE(0x0489, 0xe0d8), .driver_info = BTUSB_MEDIATEK |
683 BTUSB_WIDEBAND_SPEECH },
684 { USB_DEVICE(0x0489, 0xe0d9), .driver_info = BTUSB_MEDIATEK |
685 BTUSB_WIDEBAND_SPEECH },
686 { USB_DEVICE(0x0489, 0xe0e2), .driver_info = BTUSB_MEDIATEK |
687 BTUSB_WIDEBAND_SPEECH },
688 { USB_DEVICE(0x0489, 0xe0e4), .driver_info = BTUSB_MEDIATEK |
689 BTUSB_WIDEBAND_SPEECH },
690 { USB_DEVICE(0x0489, 0xe0f1), .driver_info = BTUSB_MEDIATEK |
691 BTUSB_WIDEBAND_SPEECH },
692 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK |
693 BTUSB_WIDEBAND_SPEECH },
694 { USB_DEVICE(0x0489, 0xe0f5), .driver_info = BTUSB_MEDIATEK |
695 BTUSB_WIDEBAND_SPEECH },
696 { USB_DEVICE(0x0489, 0xe0f6), .driver_info = BTUSB_MEDIATEK |
697 BTUSB_WIDEBAND_SPEECH },
698 { USB_DEVICE(0x0489, 0xe102), .driver_info = BTUSB_MEDIATEK |
699 BTUSB_WIDEBAND_SPEECH },
700 { USB_DEVICE(0x0489, 0xe152), .driver_info = BTUSB_MEDIATEK |
701 BTUSB_WIDEBAND_SPEECH },
702 { USB_DEVICE(0x0489, 0xe153), .driver_info = BTUSB_MEDIATEK |
703 BTUSB_WIDEBAND_SPEECH },
704 { USB_DEVICE(0x0489, 0xe170), .driver_info = BTUSB_MEDIATEK |
705 BTUSB_WIDEBAND_SPEECH },
706 { USB_DEVICE(0x04ca, 0x3804), .driver_info = BTUSB_MEDIATEK |
707 BTUSB_WIDEBAND_SPEECH },
708 { USB_DEVICE(0x04ca, 0x38e4), .driver_info = BTUSB_MEDIATEK |
709 BTUSB_WIDEBAND_SPEECH },
710 { USB_DEVICE(0x13d3, 0x3568), .driver_info = BTUSB_MEDIATEK |
711 BTUSB_WIDEBAND_SPEECH },
712 { USB_DEVICE(0x13d3, 0x3584), .driver_info = BTUSB_MEDIATEK |
713 BTUSB_WIDEBAND_SPEECH },
714 { USB_DEVICE(0x13d3, 0x3605), .driver_info = BTUSB_MEDIATEK |
715 BTUSB_WIDEBAND_SPEECH },
716 { USB_DEVICE(0x13d3, 0x3607), .driver_info = BTUSB_MEDIATEK |
717 BTUSB_WIDEBAND_SPEECH },
718 { USB_DEVICE(0x13d3, 0x3614), .driver_info = BTUSB_MEDIATEK |
719 BTUSB_WIDEBAND_SPEECH },
720 { USB_DEVICE(0x13d3, 0x3615), .driver_info = BTUSB_MEDIATEK |
721 BTUSB_WIDEBAND_SPEECH },
722 { USB_DEVICE(0x13d3, 0x3633), .driver_info = BTUSB_MEDIATEK |
723 BTUSB_WIDEBAND_SPEECH },
724 { USB_DEVICE(0x35f5, 0x7922), .driver_info = BTUSB_MEDIATEK |
725 BTUSB_WIDEBAND_SPEECH },
726
727 /* Additional MediaTek MT7925 Bluetooth devices */
728 { USB_DEVICE(0x0489, 0xe111), .driver_info = BTUSB_MEDIATEK |
729 BTUSB_WIDEBAND_SPEECH },
730 { USB_DEVICE(0x0489, 0xe113), .driver_info = BTUSB_MEDIATEK |
731 BTUSB_WIDEBAND_SPEECH },
732 { USB_DEVICE(0x0489, 0xe118), .driver_info = BTUSB_MEDIATEK |
733 BTUSB_WIDEBAND_SPEECH },
734 { USB_DEVICE(0x0489, 0xe11e), .driver_info = BTUSB_MEDIATEK |
735 BTUSB_WIDEBAND_SPEECH },
736 { USB_DEVICE(0x0489, 0xe124), .driver_info = BTUSB_MEDIATEK |
737 BTUSB_WIDEBAND_SPEECH },
738 { USB_DEVICE(0x0489, 0xe139), .driver_info = BTUSB_MEDIATEK |
739 BTUSB_WIDEBAND_SPEECH },
740 { USB_DEVICE(0x0489, 0xe14e), .driver_info = BTUSB_MEDIATEK |
741 BTUSB_WIDEBAND_SPEECH },
742 { USB_DEVICE(0x0489, 0xe14f), .driver_info = BTUSB_MEDIATEK |
743 BTUSB_WIDEBAND_SPEECH },
744 { USB_DEVICE(0x0489, 0xe150), .driver_info = BTUSB_MEDIATEK |
745 BTUSB_WIDEBAND_SPEECH },
746 { USB_DEVICE(0x0489, 0xe151), .driver_info = BTUSB_MEDIATEK |
747 BTUSB_WIDEBAND_SPEECH },
748 { USB_DEVICE(0x13d3, 0x3602), .driver_info = BTUSB_MEDIATEK |
749 BTUSB_WIDEBAND_SPEECH },
750 { USB_DEVICE(0x13d3, 0x3603), .driver_info = BTUSB_MEDIATEK |
751 BTUSB_WIDEBAND_SPEECH },
752 { USB_DEVICE(0x13d3, 0x3604), .driver_info = BTUSB_MEDIATEK |
753 BTUSB_WIDEBAND_SPEECH },
754 { USB_DEVICE(0x13d3, 0x3608), .driver_info = BTUSB_MEDIATEK |
755 BTUSB_WIDEBAND_SPEECH },
756 { USB_DEVICE(0x13d3, 0x3613), .driver_info = BTUSB_MEDIATEK |
757 BTUSB_WIDEBAND_SPEECH },
758 { USB_DEVICE(0x13d3, 0x3627), .driver_info = BTUSB_MEDIATEK |
759 BTUSB_WIDEBAND_SPEECH },
760 { USB_DEVICE(0x13d3, 0x3628), .driver_info = BTUSB_MEDIATEK |
761 BTUSB_WIDEBAND_SPEECH },
762 { USB_DEVICE(0x13d3, 0x3630), .driver_info = BTUSB_MEDIATEK |
763 BTUSB_WIDEBAND_SPEECH },
764 { USB_DEVICE(0x2c7c, 0x7009), .driver_info = BTUSB_MEDIATEK |
765 BTUSB_WIDEBAND_SPEECH },
766
767 /* Additional Realtek 8723AE Bluetooth devices */
768 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
769 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
770
771 /* Additional Realtek 8723BE Bluetooth devices */
772 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
773 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
774 { USB_DEVICE(0x04f2, 0xb49f), .driver_info = BTUSB_REALTEK },
775 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
776 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
777 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
778 { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK },
779
780 /* Additional Realtek 8723BU Bluetooth devices */
781 { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK },
782 { USB_DEVICE(0x2c0a, 0x8761), .driver_info = BTUSB_REALTEK },
783
784 /* Additional Realtek 8723DE Bluetooth devices */
785 { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK },
786 { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK },
787
788 /* Additional Realtek 8761BUV Bluetooth devices */
789 { USB_DEVICE(0x2357, 0x0604), .driver_info = BTUSB_REALTEK |
790 BTUSB_WIDEBAND_SPEECH },
791 { USB_DEVICE(0x0b05, 0x190e), .driver_info = BTUSB_REALTEK |
792 BTUSB_WIDEBAND_SPEECH },
793 { USB_DEVICE(0x2550, 0x8761), .driver_info = BTUSB_REALTEK |
794 BTUSB_WIDEBAND_SPEECH },
795 { USB_DEVICE(0x0bda, 0x8771), .driver_info = BTUSB_REALTEK |
796 BTUSB_WIDEBAND_SPEECH },
797 { USB_DEVICE(0x6655, 0x8771), .driver_info = BTUSB_REALTEK |
798 BTUSB_WIDEBAND_SPEECH },
799 { USB_DEVICE(0x7392, 0xc611), .driver_info = BTUSB_REALTEK |
800 BTUSB_WIDEBAND_SPEECH },
801 { USB_DEVICE(0x2b89, 0x8761), .driver_info = BTUSB_REALTEK |
802 BTUSB_WIDEBAND_SPEECH },
803 { USB_DEVICE(0x2b89, 0x6275), .driver_info = BTUSB_REALTEK |
804 BTUSB_WIDEBAND_SPEECH },
805
806 /* Additional Realtek 8821AE Bluetooth devices */
807 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
808 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
809 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
810 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
811 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
812
813 /* Additional Realtek 8822BE Bluetooth devices */
814 { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK },
815 { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK },
816
817 /* Additional Realtek 8822CE Bluetooth devices */
818 { USB_DEVICE(0x04ca, 0x4005), .driver_info = BTUSB_REALTEK |
819 BTUSB_WIDEBAND_SPEECH },
820 { USB_DEVICE(0x04c5, 0x161f), .driver_info = BTUSB_REALTEK |
821 BTUSB_WIDEBAND_SPEECH },
822 { USB_DEVICE(0x0b05, 0x18ef), .driver_info = BTUSB_REALTEK |
823 BTUSB_WIDEBAND_SPEECH },
824 { USB_DEVICE(0x13d3, 0x3548), .driver_info = BTUSB_REALTEK |
825 BTUSB_WIDEBAND_SPEECH },
826 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK |
827 BTUSB_WIDEBAND_SPEECH },
828 { USB_DEVICE(0x13d3, 0x3553), .driver_info = BTUSB_REALTEK |
829 BTUSB_WIDEBAND_SPEECH },
830 { USB_DEVICE(0x13d3, 0x3555), .driver_info = BTUSB_REALTEK |
831 BTUSB_WIDEBAND_SPEECH },
832 { USB_DEVICE(0x2ff8, 0x3051), .driver_info = BTUSB_REALTEK |
833 BTUSB_WIDEBAND_SPEECH },
834 { USB_DEVICE(0x1358, 0xc123), .driver_info = BTUSB_REALTEK |
835 BTUSB_WIDEBAND_SPEECH },
836 { USB_DEVICE(0x0bda, 0xc123), .driver_info = BTUSB_REALTEK |
837 BTUSB_WIDEBAND_SPEECH },
838 { USB_DEVICE(0x0cb5, 0xc547), .driver_info = BTUSB_REALTEK |
839 BTUSB_WIDEBAND_SPEECH },
840
841 /* Barrot Technology Bluetooth devices */
842 { USB_DEVICE(0x33fa, 0x0010), .driver_info = BTUSB_BARROT },
843 { USB_DEVICE(0x33fa, 0x0012), .driver_info = BTUSB_BARROT },
844
845 /* Actions Semiconductor ATS2851 based devices */
846 { USB_DEVICE(0x10d7, 0xb012), .driver_info = BTUSB_ACTIONS_SEMI },
847
848 /* Silicon Wave based devices */
849 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE },
850
851 { } /* Terminating entry */
852 };
853
854 /* The Bluetooth USB module build into some devices needs to be reset on resume,
855 * this is a problem with the platform (likely shutting off all power) not with
856 * the module itself. So we use a DMI list to match known broken platforms.
857 */
858 static const struct dmi_system_id btusb_needs_reset_resume_table[] = {
859 {
860 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */
861 .matches = {
862 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
863 DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"),
864 },
865 },
866 {
867 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */
868 .matches = {
869 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
870 DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"),
871 },
872 },
873 {
874 /* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */
875 .matches = {
876 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
877 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"),
878 },
879 },
880 {}
881 };
882
883 struct qca_dump_info {
884 /* fields for dump collection */
885 u16 id_vendor;
886 u16 id_product;
887 u32 fw_version;
888 u32 controller_id;
889 u32 ram_dump_size;
890 u16 ram_dump_seqno;
891 };
892
893 #define BTUSB_MAX_ISOC_FRAMES 10
894
895 #define BTUSB_INTR_RUNNING 0
896 #define BTUSB_BULK_RUNNING 1
897 #define BTUSB_ISOC_RUNNING 2
898 #define BTUSB_SUSPENDING 3
899 #define BTUSB_DID_ISO_RESUME 4
900 #define BTUSB_BOOTLOADER 5
901 #define BTUSB_DOWNLOADING 6
902 #define BTUSB_FIRMWARE_LOADED 7
903 #define BTUSB_FIRMWARE_FAILED 8
904 #define BTUSB_BOOTING 9
905 #define BTUSB_DIAG_RUNNING 10
906 #define BTUSB_OOB_WAKE_ENABLED 11
907 #define BTUSB_HW_RESET_ACTIVE 12
908 #define BTUSB_TX_WAIT_VND_EVT 13
909 #define BTUSB_WAKEUP_AUTOSUSPEND 14
910 #define BTUSB_USE_ALT3_FOR_WBS 15
911 #define BTUSB_ALT6_CONTINUOUS_TX 16
912 #define BTUSB_HW_SSR_ACTIVE 17
913
914 struct btusb_data {
915 struct hci_dev *hdev;
916 struct usb_device *udev;
917 struct usb_interface *intf;
918 struct usb_interface *isoc;
919 struct usb_interface *diag;
920 unsigned isoc_ifnum;
921
922 unsigned long flags;
923
924 bool poll_sync;
925 int intr_interval;
926 struct work_struct work;
927 struct work_struct waker;
928 struct delayed_work rx_work;
929
930 struct sk_buff_head acl_q;
931
932 struct usb_anchor deferred;
933 struct usb_anchor tx_anchor;
934 int tx_in_flight;
935 spinlock_t txlock;
936
937 struct usb_anchor intr_anchor;
938 struct usb_anchor bulk_anchor;
939 struct usb_anchor isoc_anchor;
940 struct usb_anchor diag_anchor;
941 struct usb_anchor ctrl_anchor;
942 spinlock_t rxlock;
943
944 struct sk_buff *evt_skb;
945 struct sk_buff *acl_skb;
946 struct sk_buff *sco_skb;
947
948 struct usb_endpoint_descriptor *intr_ep;
949 struct usb_endpoint_descriptor *bulk_tx_ep;
950 struct usb_endpoint_descriptor *bulk_rx_ep;
951 struct usb_endpoint_descriptor *isoc_tx_ep;
952 struct usb_endpoint_descriptor *isoc_rx_ep;
953 struct usb_endpoint_descriptor *diag_tx_ep;
954 struct usb_endpoint_descriptor *diag_rx_ep;
955
956 struct gpio_desc *reset_gpio;
957
958 __u8 cmdreq_type;
959 __u8 cmdreq;
960
961 unsigned int sco_num;
962 unsigned int air_mode;
963 bool usb_alt6_packet_flow;
964 int isoc_altsetting;
965 int suspend_count;
966
967 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
968 int (*recv_acl)(struct hci_dev *hdev, struct sk_buff *skb);
969 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
970
971 int (*setup_on_usb)(struct hci_dev *hdev);
972
973 int (*suspend)(struct hci_dev *hdev);
974 int (*resume)(struct hci_dev *hdev);
975 int (*disconnect)(struct hci_dev *hdev);
976
977 int oob_wake_irq; /* irq for out-of-band wake-on-bt */
978
979 struct qca_dump_info qca_dump;
980 };
981
btusb_reset(struct hci_dev * hdev)982 static void btusb_reset(struct hci_dev *hdev)
983 {
984 struct btusb_data *data;
985 int err;
986
987 data = hci_get_drvdata(hdev);
988 /* This is not an unbalanced PM reference since the device will reset */
989 err = usb_autopm_get_interface(data->intf);
990 if (err) {
991 bt_dev_err(hdev, "Failed usb_autopm_get_interface: %d", err);
992 return;
993 }
994
995 bt_dev_err(hdev, "Resetting usb device.");
996 usb_queue_reset_device(data->intf);
997 }
998
btusb_intel_reset(struct hci_dev * hdev)999 static void btusb_intel_reset(struct hci_dev *hdev)
1000 {
1001 struct btusb_data *data = hci_get_drvdata(hdev);
1002 struct gpio_desc *reset_gpio = data->reset_gpio;
1003 struct btintel_data *intel_data = hci_get_priv(hdev);
1004
1005 if (intel_data->acpi_reset_method) {
1006 if (test_and_set_bit(INTEL_ACPI_RESET_ACTIVE, intel_data->flags)) {
1007 bt_dev_err(hdev, "acpi: last reset failed ? Not resetting again");
1008 return;
1009 }
1010
1011 bt_dev_err(hdev, "Initiating acpi reset method");
1012 /* If ACPI reset method fails, lets try with legacy GPIO
1013 * toggling
1014 */
1015 if (!intel_data->acpi_reset_method(hdev)) {
1016 return;
1017 }
1018 }
1019
1020 if (!reset_gpio) {
1021 btusb_reset(hdev);
1022 return;
1023 }
1024
1025 /*
1026 * Toggle the hard reset line if the platform provides one. The reset
1027 * is going to yank the device off the USB and then replug. So doing
1028 * once is enough. The cleanup is handled correctly on the way out
1029 * (standard USB disconnect), and the new device is detected cleanly
1030 * and bound to the driver again like it should be.
1031 */
1032 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
1033 bt_dev_err(hdev, "last reset failed? Not resetting again");
1034 return;
1035 }
1036
1037 bt_dev_err(hdev, "Initiating HW reset via gpio");
1038 gpiod_set_value_cansleep(reset_gpio, 1);
1039 msleep(100);
1040 gpiod_set_value_cansleep(reset_gpio, 0);
1041 }
1042
1043 #define RTK_DEVCOREDUMP_CODE_MEMDUMP 0x01
1044 #define RTK_DEVCOREDUMP_CODE_HW_ERR 0x02
1045 #define RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT 0x03
1046
1047 #define RTK_SUB_EVENT_CODE_COREDUMP 0x34
1048
1049 struct rtk_dev_coredump_hdr {
1050 u8 type;
1051 u8 code;
1052 u8 reserved[2];
1053 } __packed;
1054
btusb_rtl_alloc_devcoredump(struct hci_dev * hdev,struct rtk_dev_coredump_hdr * hdr,u8 * buf,u32 len)1055 static inline void btusb_rtl_alloc_devcoredump(struct hci_dev *hdev,
1056 struct rtk_dev_coredump_hdr *hdr, u8 *buf, u32 len)
1057 {
1058 struct sk_buff *skb;
1059
1060 skb = alloc_skb(len + sizeof(*hdr), GFP_ATOMIC);
1061 if (!skb)
1062 return;
1063
1064 skb_put_data(skb, hdr, sizeof(*hdr));
1065 if (len)
1066 skb_put_data(skb, buf, len);
1067
1068 if (!hci_devcd_init(hdev, skb->len)) {
1069 hci_devcd_append(hdev, skb);
1070 hci_devcd_complete(hdev);
1071 } else {
1072 bt_dev_err(hdev, "RTL: Failed to generate devcoredump");
1073 kfree_skb(skb);
1074 }
1075 }
1076
btusb_rtl_reset(struct hci_dev * hdev)1077 static void btusb_rtl_reset(struct hci_dev *hdev)
1078 {
1079 struct btusb_data *data = hci_get_drvdata(hdev);
1080 struct gpio_desc *reset_gpio = data->reset_gpio;
1081 struct rtk_dev_coredump_hdr hdr = {
1082 .type = RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT,
1083 };
1084
1085 btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0);
1086
1087 if (!reset_gpio) {
1088 btusb_reset(hdev);
1089 return;
1090 }
1091
1092 /* Toggle the hard reset line. The Realtek device is going to
1093 * yank itself off the USB and then replug. The cleanup is handled
1094 * correctly on the way out (standard USB disconnect), and the new
1095 * device is detected cleanly and bound to the driver again like
1096 * it should be.
1097 */
1098 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
1099 bt_dev_err(hdev, "last reset failed? Not resetting again");
1100 return;
1101 }
1102
1103 bt_dev_err(hdev, "Reset Realtek device via gpio");
1104 gpiod_set_value_cansleep(reset_gpio, 1);
1105 msleep(200);
1106 gpiod_set_value_cansleep(reset_gpio, 0);
1107 }
1108
btusb_rtl_hw_error(struct hci_dev * hdev,u8 code)1109 static void btusb_rtl_hw_error(struct hci_dev *hdev, u8 code)
1110 {
1111 struct rtk_dev_coredump_hdr hdr = {
1112 .type = RTK_DEVCOREDUMP_CODE_HW_ERR,
1113 .code = code,
1114 };
1115
1116 bt_dev_err(hdev, "RTL: hw err, trigger devcoredump (%d)", code);
1117
1118 btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0);
1119 }
1120
btusb_qca_reset(struct hci_dev * hdev)1121 static void btusb_qca_reset(struct hci_dev *hdev)
1122 {
1123 struct btusb_data *data = hci_get_drvdata(hdev);
1124 struct gpio_desc *reset_gpio = data->reset_gpio;
1125
1126 if (test_bit(BTUSB_HW_SSR_ACTIVE, &data->flags)) {
1127 bt_dev_info(hdev, "Ramdump in progress, defer reset");
1128 return;
1129 }
1130
1131 if (reset_gpio) {
1132 bt_dev_err(hdev, "Reset qca device via bt_en gpio");
1133
1134 /* Toggle the hard reset line. The qca bt device is going to
1135 * yank itself off the USB and then replug. The cleanup is handled
1136 * correctly on the way out (standard USB disconnect), and the new
1137 * device is detected cleanly and bound to the driver again like
1138 * it should be.
1139 */
1140 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
1141 bt_dev_err(hdev, "last reset failed? Not resetting again");
1142 return;
1143 }
1144
1145 gpiod_set_value_cansleep(reset_gpio, 0);
1146 msleep(200);
1147 gpiod_set_value_cansleep(reset_gpio, 1);
1148
1149 return;
1150 }
1151
1152 btusb_reset(hdev);
1153 }
1154
btusb_classify_qca_pkt_type(struct hci_dev * hdev,struct sk_buff * skb)1155 static u8 btusb_classify_qca_pkt_type(struct hci_dev *hdev, struct sk_buff *skb)
1156 {
1157 /* Some Qualcomm controllers, e.g., QCNFA765 with WCN6855 chip, send debug
1158 * packets as ACL frames with connection handle 0x2EDC. These are not real
1159 * ACL packets and should be reclassified as HCI_DIAG_PKT to prevent
1160 * "ACL packet for unknown connection handle 3804" errors.
1161 */
1162 if (skb->len >= 2) {
1163 u16 handle = get_unaligned_le16(skb->data);
1164
1165 if (handle == 0x2EDC)
1166 return HCI_DIAG_PKT;
1167 }
1168
1169 /* Use default packet type for other packets */
1170 return hci_skb_pkt_type(skb);
1171 }
1172
btusb_free_frags(struct btusb_data * data)1173 static inline void btusb_free_frags(struct btusb_data *data)
1174 {
1175 unsigned long flags;
1176
1177 spin_lock_irqsave(&data->rxlock, flags);
1178
1179 dev_kfree_skb_irq(data->evt_skb);
1180 data->evt_skb = NULL;
1181
1182 dev_kfree_skb_irq(data->acl_skb);
1183 data->acl_skb = NULL;
1184
1185 dev_kfree_skb_irq(data->sco_skb);
1186 data->sco_skb = NULL;
1187
1188 spin_unlock_irqrestore(&data->rxlock, flags);
1189 }
1190
btusb_recv_event(struct btusb_data * data,struct sk_buff * skb)1191 static int btusb_recv_event(struct btusb_data *data, struct sk_buff *skb)
1192 {
1193 if (data->intr_interval) {
1194 /* Trigger dequeue immediately if an event is received */
1195 schedule_delayed_work(&data->rx_work, 0);
1196 }
1197
1198 return data->recv_event(data->hdev, skb);
1199 }
1200
btusb_recv_intr(struct btusb_data * data,void * buffer,int count)1201 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
1202 {
1203 struct sk_buff *skb;
1204 unsigned long flags;
1205 int err = 0;
1206
1207 spin_lock_irqsave(&data->rxlock, flags);
1208 skb = data->evt_skb;
1209
1210 while (count) {
1211 int len;
1212
1213 if (!skb) {
1214 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
1215 if (!skb) {
1216 err = -ENOMEM;
1217 break;
1218 }
1219
1220 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
1221 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE;
1222 }
1223
1224 len = min_t(uint, hci_skb_expect(skb), count);
1225 skb_put_data(skb, buffer, len);
1226
1227 count -= len;
1228 buffer += len;
1229 hci_skb_expect(skb) -= len;
1230
1231 if (skb->len == HCI_EVENT_HDR_SIZE) {
1232 /* Complete event header */
1233 hci_skb_expect(skb) = hci_event_hdr(skb)->plen;
1234
1235 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
1236 kfree_skb(skb);
1237 skb = NULL;
1238
1239 err = -EILSEQ;
1240 break;
1241 }
1242 }
1243
1244 if (!hci_skb_expect(skb)) {
1245 /* Each chunk should correspond to at least 1 or more
1246 * events so if there are still bytes left that doesn't
1247 * constitute a new event this is likely a bug in the
1248 * controller.
1249 */
1250 if (count && count < HCI_EVENT_HDR_SIZE) {
1251 bt_dev_warn(data->hdev,
1252 "Unexpected continuation: %d bytes",
1253 count);
1254 count = 0;
1255 }
1256
1257 /* Complete frame */
1258 btusb_recv_event(data, skb);
1259 skb = NULL;
1260 }
1261 }
1262
1263 data->evt_skb = skb;
1264 spin_unlock_irqrestore(&data->rxlock, flags);
1265
1266 return err;
1267 }
1268
btusb_recv_acl(struct btusb_data * data,struct sk_buff * skb)1269 static int btusb_recv_acl(struct btusb_data *data, struct sk_buff *skb)
1270 {
1271 /* Only queue ACL packet if intr_interval is set as it means
1272 * force_poll_sync has been enabled.
1273 */
1274 if (!data->intr_interval)
1275 return data->recv_acl(data->hdev, skb);
1276
1277 skb_queue_tail(&data->acl_q, skb);
1278 schedule_delayed_work(&data->rx_work, data->intr_interval);
1279
1280 return 0;
1281 }
1282
btusb_recv_bulk(struct btusb_data * data,void * buffer,int count)1283 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
1284 {
1285 struct sk_buff *skb;
1286 unsigned long flags;
1287 int err = 0;
1288
1289 spin_lock_irqsave(&data->rxlock, flags);
1290 skb = data->acl_skb;
1291
1292 while (count) {
1293 int len;
1294
1295 if (!skb) {
1296 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
1297 if (!skb) {
1298 err = -ENOMEM;
1299 break;
1300 }
1301
1302 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT;
1303 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE;
1304 }
1305
1306 len = min_t(uint, hci_skb_expect(skb), count);
1307 skb_put_data(skb, buffer, len);
1308
1309 count -= len;
1310 buffer += len;
1311 hci_skb_expect(skb) -= len;
1312
1313 if (skb->len == HCI_ACL_HDR_SIZE) {
1314 __le16 dlen = hci_acl_hdr(skb)->dlen;
1315
1316 /* Complete ACL header */
1317 hci_skb_expect(skb) = __le16_to_cpu(dlen);
1318
1319 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
1320 kfree_skb(skb);
1321 skb = NULL;
1322
1323 err = -EILSEQ;
1324 break;
1325 }
1326 }
1327
1328 if (!hci_skb_expect(skb)) {
1329 /* Complete frame */
1330 btusb_recv_acl(data, skb);
1331 skb = NULL;
1332 }
1333 }
1334
1335 data->acl_skb = skb;
1336 spin_unlock_irqrestore(&data->rxlock, flags);
1337
1338 return err;
1339 }
1340
btusb_validate_sco_handle(struct hci_dev * hdev,struct hci_sco_hdr * hdr)1341 static bool btusb_validate_sco_handle(struct hci_dev *hdev,
1342 struct hci_sco_hdr *hdr)
1343 {
1344 __u16 handle;
1345
1346 if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL))
1347 // Can't validate, userspace controls everything.
1348 return true;
1349
1350 /*
1351 * USB isochronous transfers are not designed to be reliable and may
1352 * lose fragments. When this happens, the next first fragment
1353 * encountered might actually be a continuation fragment.
1354 * Validate the handle to detect it and drop it, or else the upper
1355 * layer will get garbage for a while.
1356 */
1357
1358 handle = hci_handle(__le16_to_cpu(hdr->handle));
1359
1360 switch (hci_conn_lookup_type(hdev, handle)) {
1361 case SCO_LINK:
1362 case ESCO_LINK:
1363 return true;
1364 default:
1365 return false;
1366 }
1367 }
1368
btusb_recv_isoc(struct btusb_data * data,void * buffer,int count)1369 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
1370 {
1371 struct sk_buff *skb;
1372 unsigned long flags;
1373 int err = 0;
1374
1375 spin_lock_irqsave(&data->rxlock, flags);
1376 skb = data->sco_skb;
1377
1378 while (count) {
1379 int len;
1380
1381 if (!skb) {
1382 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
1383 if (!skb) {
1384 err = -ENOMEM;
1385 break;
1386 }
1387
1388 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT;
1389 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE;
1390 }
1391
1392 len = min_t(uint, hci_skb_expect(skb), count);
1393 skb_put_data(skb, buffer, len);
1394
1395 count -= len;
1396 buffer += len;
1397 hci_skb_expect(skb) -= len;
1398
1399 if (skb->len == HCI_SCO_HDR_SIZE) {
1400 /* Complete SCO header */
1401 struct hci_sco_hdr *hdr = hci_sco_hdr(skb);
1402
1403 hci_skb_expect(skb) = hdr->dlen;
1404
1405 if (skb_tailroom(skb) < hci_skb_expect(skb) ||
1406 !btusb_validate_sco_handle(data->hdev, hdr)) {
1407 kfree_skb(skb);
1408 skb = NULL;
1409
1410 err = -EILSEQ;
1411 break;
1412 }
1413 }
1414
1415 if (!hci_skb_expect(skb)) {
1416 /* Complete frame */
1417 hci_recv_frame(data->hdev, skb);
1418 skb = NULL;
1419 }
1420 }
1421
1422 data->sco_skb = skb;
1423 spin_unlock_irqrestore(&data->rxlock, flags);
1424
1425 return err;
1426 }
1427
btusb_intr_complete(struct urb * urb)1428 static void btusb_intr_complete(struct urb *urb)
1429 {
1430 struct hci_dev *hdev = urb->context;
1431 struct btusb_data *data = hci_get_drvdata(hdev);
1432 int err;
1433
1434 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1435 urb->actual_length);
1436
1437 if (!test_bit(HCI_RUNNING, &hdev->flags))
1438 return;
1439
1440 if (urb->status == 0) {
1441 hdev->stat.byte_rx += urb->actual_length;
1442
1443 if (btusb_recv_intr(data, urb->transfer_buffer,
1444 urb->actual_length) < 0) {
1445 bt_dev_err(hdev, "corrupted event packet");
1446 hdev->stat.err_rx++;
1447 }
1448 } else if (urb->status == -ENOENT) {
1449 /* Avoid suspend failed when usb_kill_urb */
1450 return;
1451 }
1452
1453 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
1454 return;
1455
1456 usb_mark_last_busy(data->udev);
1457 usb_anchor_urb(urb, &data->intr_anchor);
1458
1459 err = usb_submit_urb(urb, GFP_ATOMIC);
1460 if (err < 0) {
1461 /* -EPERM: urb is being killed;
1462 * -ENODEV: device got disconnected
1463 */
1464 if (err != -EPERM && err != -ENODEV)
1465 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1466 urb, -err);
1467 if (err != -EPERM)
1468 hci_cmd_sync_cancel(hdev, -err);
1469 usb_unanchor_urb(urb);
1470 }
1471 }
1472
btusb_submit_intr_urb(struct hci_dev * hdev,gfp_t mem_flags)1473 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
1474 {
1475 struct btusb_data *data = hci_get_drvdata(hdev);
1476 struct urb *urb;
1477 unsigned char *buf;
1478 unsigned int pipe;
1479 int err, size;
1480
1481 BT_DBG("%s", hdev->name);
1482
1483 if (!data->intr_ep)
1484 return -ENODEV;
1485
1486 urb = usb_alloc_urb(0, mem_flags);
1487 if (!urb)
1488 return -ENOMEM;
1489
1490 if (le16_to_cpu(data->udev->descriptor.idVendor) == 0x0a12 &&
1491 le16_to_cpu(data->udev->descriptor.idProduct) == 0x0001)
1492 /* Fake CSR devices don't seem to support sort-transter */
1493 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
1494 else
1495 /* Use maximum HCI Event size so the USB stack handles
1496 * ZPL/short-transfer automatically.
1497 */
1498 size = HCI_MAX_EVENT_SIZE;
1499
1500 buf = kmalloc(size, mem_flags);
1501 if (!buf) {
1502 usb_free_urb(urb);
1503 return -ENOMEM;
1504 }
1505
1506 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
1507
1508 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
1509 btusb_intr_complete, hdev, data->intr_ep->bInterval);
1510
1511 urb->transfer_flags |= URB_FREE_BUFFER;
1512
1513 usb_anchor_urb(urb, &data->intr_anchor);
1514
1515 err = usb_submit_urb(urb, mem_flags);
1516 if (err < 0) {
1517 if (err != -EPERM && err != -ENODEV)
1518 bt_dev_err(hdev, "urb %p submission failed (%d)",
1519 urb, -err);
1520 if (err != -EPERM)
1521 hci_cmd_sync_cancel(hdev, -err);
1522 usb_unanchor_urb(urb);
1523 }
1524
1525 /* Only initialize intr_interval if URB poll sync is enabled */
1526 if (!data->poll_sync)
1527 goto done;
1528
1529 /* The units are frames (milliseconds) for full and low speed devices,
1530 * and microframes (1/8 millisecond) for highspeed and SuperSpeed
1531 * devices.
1532 *
1533 * This is done once on open/resume so it shouldn't change even if
1534 * force_poll_sync changes.
1535 */
1536 switch (urb->dev->speed) {
1537 case USB_SPEED_SUPER_PLUS:
1538 case USB_SPEED_SUPER: /* units are 125us */
1539 data->intr_interval = usecs_to_jiffies(urb->interval * 125);
1540 break;
1541 default:
1542 data->intr_interval = msecs_to_jiffies(urb->interval);
1543 break;
1544 }
1545
1546 done:
1547 usb_free_urb(urb);
1548
1549 return err;
1550 }
1551
btusb_bulk_complete(struct urb * urb)1552 static void btusb_bulk_complete(struct urb *urb)
1553 {
1554 struct hci_dev *hdev = urb->context;
1555 struct btusb_data *data = hci_get_drvdata(hdev);
1556 int err;
1557
1558 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1559 urb->actual_length);
1560
1561 if (!test_bit(HCI_RUNNING, &hdev->flags))
1562 return;
1563
1564 if (urb->status == 0) {
1565 hdev->stat.byte_rx += urb->actual_length;
1566
1567 if (data->recv_bulk(data, urb->transfer_buffer,
1568 urb->actual_length) < 0) {
1569 bt_dev_err(hdev, "corrupted ACL packet");
1570 hdev->stat.err_rx++;
1571 }
1572 } else if (urb->status == -ENOENT) {
1573 /* Avoid suspend failed when usb_kill_urb */
1574 return;
1575 }
1576
1577 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
1578 return;
1579
1580 usb_anchor_urb(urb, &data->bulk_anchor);
1581 usb_mark_last_busy(data->udev);
1582
1583 err = usb_submit_urb(urb, GFP_ATOMIC);
1584 if (err < 0) {
1585 /* -EPERM: urb is being killed;
1586 * -ENODEV: device got disconnected
1587 */
1588 if (err != -EPERM && err != -ENODEV)
1589 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1590 urb, -err);
1591 usb_unanchor_urb(urb);
1592 }
1593 }
1594
btusb_submit_bulk_urb(struct hci_dev * hdev,gfp_t mem_flags)1595 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
1596 {
1597 struct btusb_data *data = hci_get_drvdata(hdev);
1598 struct urb *urb;
1599 unsigned char *buf;
1600 unsigned int pipe;
1601 int err, size = HCI_MAX_FRAME_SIZE;
1602
1603 BT_DBG("%s", hdev->name);
1604
1605 if (!data->bulk_rx_ep)
1606 return -ENODEV;
1607
1608 urb = usb_alloc_urb(0, mem_flags);
1609 if (!urb)
1610 return -ENOMEM;
1611
1612 buf = kmalloc(size, mem_flags);
1613 if (!buf) {
1614 usb_free_urb(urb);
1615 return -ENOMEM;
1616 }
1617
1618 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
1619
1620 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1621 btusb_bulk_complete, hdev);
1622
1623 urb->transfer_flags |= URB_FREE_BUFFER;
1624
1625 usb_mark_last_busy(data->udev);
1626 usb_anchor_urb(urb, &data->bulk_anchor);
1627
1628 err = usb_submit_urb(urb, mem_flags);
1629 if (err < 0) {
1630 if (err != -EPERM && err != -ENODEV)
1631 bt_dev_err(hdev, "urb %p submission failed (%d)",
1632 urb, -err);
1633 usb_unanchor_urb(urb);
1634 }
1635
1636 usb_free_urb(urb);
1637
1638 return err;
1639 }
1640
btusb_isoc_complete(struct urb * urb)1641 static void btusb_isoc_complete(struct urb *urb)
1642 {
1643 struct hci_dev *hdev = urb->context;
1644 struct btusb_data *data = hci_get_drvdata(hdev);
1645 int i, err;
1646
1647 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1648 urb->actual_length);
1649
1650 if (!test_bit(HCI_RUNNING, &hdev->flags))
1651 return;
1652
1653 if (urb->status == 0) {
1654 for (i = 0; i < urb->number_of_packets; i++) {
1655 unsigned int offset = urb->iso_frame_desc[i].offset;
1656 unsigned int length = urb->iso_frame_desc[i].actual_length;
1657
1658 if (urb->iso_frame_desc[i].status)
1659 continue;
1660
1661 hdev->stat.byte_rx += length;
1662
1663 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
1664 length) < 0) {
1665 bt_dev_err(hdev, "corrupted SCO packet");
1666 hdev->stat.err_rx++;
1667 }
1668 }
1669 } else if (urb->status == -ENOENT) {
1670 /* Avoid suspend failed when usb_kill_urb */
1671 return;
1672 }
1673
1674 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
1675 return;
1676
1677 usb_anchor_urb(urb, &data->isoc_anchor);
1678
1679 err = usb_submit_urb(urb, GFP_ATOMIC);
1680 if (err < 0) {
1681 /* -EPERM: urb is being killed;
1682 * -ENODEV: device got disconnected
1683 */
1684 if (err != -EPERM && err != -ENODEV)
1685 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1686 urb, -err);
1687 usb_unanchor_urb(urb);
1688 }
1689 }
1690
__fill_isoc_descriptor_msbc(struct urb * urb,int len,int mtu,struct btusb_data * data)1691 static inline void __fill_isoc_descriptor_msbc(struct urb *urb, int len,
1692 int mtu, struct btusb_data *data)
1693 {
1694 int i = 0, offset = 0;
1695 unsigned int interval;
1696
1697 BT_DBG("len %d mtu %d", len, mtu);
1698
1699 /* For mSBC ALT 6 settings some chips need to transmit the data
1700 * continuously without the zero length of USB packets.
1701 */
1702 if (test_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags))
1703 goto ignore_usb_alt6_packet_flow;
1704
1705 /* For mSBC ALT 6 setting the host will send the packet at continuous
1706 * flow. As per core spec 5, vol 4, part B, table 2.1. For ALT setting
1707 * 6 the HCI PACKET INTERVAL should be 7.5ms for every usb packets.
1708 * To maintain the rate we send 63bytes of usb packets alternatively for
1709 * 7ms and 8ms to maintain the rate as 7.5ms.
1710 */
1711 if (data->usb_alt6_packet_flow) {
1712 interval = 7;
1713 data->usb_alt6_packet_flow = false;
1714 } else {
1715 interval = 6;
1716 data->usb_alt6_packet_flow = true;
1717 }
1718
1719 for (i = 0; i < interval; i++) {
1720 urb->iso_frame_desc[i].offset = offset;
1721 urb->iso_frame_desc[i].length = offset;
1722 }
1723
1724 ignore_usb_alt6_packet_flow:
1725 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1726 urb->iso_frame_desc[i].offset = offset;
1727 urb->iso_frame_desc[i].length = len;
1728 i++;
1729 }
1730
1731 urb->number_of_packets = i;
1732 }
1733
__fill_isoc_descriptor(struct urb * urb,int len,int mtu)1734 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
1735 {
1736 int i, offset = 0;
1737
1738 BT_DBG("len %d mtu %d", len, mtu);
1739
1740 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
1741 i++, offset += mtu, len -= mtu) {
1742 urb->iso_frame_desc[i].offset = offset;
1743 urb->iso_frame_desc[i].length = mtu;
1744 }
1745
1746 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1747 urb->iso_frame_desc[i].offset = offset;
1748 urb->iso_frame_desc[i].length = len;
1749 i++;
1750 }
1751
1752 urb->number_of_packets = i;
1753 }
1754
btusb_submit_isoc_urb(struct hci_dev * hdev,gfp_t mem_flags)1755 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
1756 {
1757 struct btusb_data *data = hci_get_drvdata(hdev);
1758 struct urb *urb;
1759 unsigned char *buf;
1760 unsigned int pipe;
1761 int err, size;
1762
1763 BT_DBG("%s", hdev->name);
1764
1765 if (!data->isoc_rx_ep)
1766 return -ENODEV;
1767
1768 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
1769 if (!urb)
1770 return -ENOMEM;
1771
1772 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
1773 BTUSB_MAX_ISOC_FRAMES;
1774
1775 buf = kmalloc(size, mem_flags);
1776 if (!buf) {
1777 usb_free_urb(urb);
1778 return -ENOMEM;
1779 }
1780
1781 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
1782
1783 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
1784 hdev, data->isoc_rx_ep->bInterval);
1785
1786 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
1787
1788 __fill_isoc_descriptor(urb, size,
1789 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
1790
1791 usb_anchor_urb(urb, &data->isoc_anchor);
1792
1793 err = usb_submit_urb(urb, mem_flags);
1794 if (err < 0) {
1795 if (err != -EPERM && err != -ENODEV)
1796 bt_dev_err(hdev, "urb %p submission failed (%d)",
1797 urb, -err);
1798 usb_unanchor_urb(urb);
1799 }
1800
1801 usb_free_urb(urb);
1802
1803 return err;
1804 }
1805
btusb_diag_complete(struct urb * urb)1806 static void btusb_diag_complete(struct urb *urb)
1807 {
1808 struct hci_dev *hdev = urb->context;
1809 struct btusb_data *data = hci_get_drvdata(hdev);
1810 int err;
1811
1812 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1813 urb->actual_length);
1814
1815 if (urb->status == 0) {
1816 struct sk_buff *skb;
1817
1818 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC);
1819 if (skb) {
1820 skb_put_data(skb, urb->transfer_buffer,
1821 urb->actual_length);
1822 hci_recv_diag(hdev, skb);
1823 }
1824 } else if (urb->status == -ENOENT) {
1825 /* Avoid suspend failed when usb_kill_urb */
1826 return;
1827 }
1828
1829 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags))
1830 return;
1831
1832 usb_anchor_urb(urb, &data->diag_anchor);
1833 usb_mark_last_busy(data->udev);
1834
1835 err = usb_submit_urb(urb, GFP_ATOMIC);
1836 if (err < 0) {
1837 /* -EPERM: urb is being killed;
1838 * -ENODEV: device got disconnected
1839 */
1840 if (err != -EPERM && err != -ENODEV)
1841 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1842 urb, -err);
1843 usb_unanchor_urb(urb);
1844 }
1845 }
1846
btusb_submit_diag_urb(struct hci_dev * hdev,gfp_t mem_flags)1847 static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags)
1848 {
1849 struct btusb_data *data = hci_get_drvdata(hdev);
1850 struct urb *urb;
1851 unsigned char *buf;
1852 unsigned int pipe;
1853 int err, size = HCI_MAX_FRAME_SIZE;
1854
1855 BT_DBG("%s", hdev->name);
1856
1857 if (!data->diag_rx_ep)
1858 return -ENODEV;
1859
1860 urb = usb_alloc_urb(0, mem_flags);
1861 if (!urb)
1862 return -ENOMEM;
1863
1864 buf = kmalloc(size, mem_flags);
1865 if (!buf) {
1866 usb_free_urb(urb);
1867 return -ENOMEM;
1868 }
1869
1870 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress);
1871
1872 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1873 btusb_diag_complete, hdev);
1874
1875 urb->transfer_flags |= URB_FREE_BUFFER;
1876
1877 usb_mark_last_busy(data->udev);
1878 usb_anchor_urb(urb, &data->diag_anchor);
1879
1880 err = usb_submit_urb(urb, mem_flags);
1881 if (err < 0) {
1882 if (err != -EPERM && err != -ENODEV)
1883 bt_dev_err(hdev, "urb %p submission failed (%d)",
1884 urb, -err);
1885 usb_unanchor_urb(urb);
1886 }
1887
1888 usb_free_urb(urb);
1889
1890 return err;
1891 }
1892
btusb_tx_complete(struct urb * urb)1893 static void btusb_tx_complete(struct urb *urb)
1894 {
1895 struct sk_buff *skb = urb->context;
1896 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1897 struct btusb_data *data = hci_get_drvdata(hdev);
1898 unsigned long flags;
1899
1900 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1901 urb->actual_length);
1902
1903 if (!test_bit(HCI_RUNNING, &hdev->flags))
1904 goto done;
1905
1906 if (!urb->status) {
1907 hdev->stat.byte_tx += urb->transfer_buffer_length;
1908 } else {
1909 if (hci_skb_pkt_type(skb) == HCI_COMMAND_PKT)
1910 hci_cmd_sync_cancel(hdev, -urb->status);
1911 hdev->stat.err_tx++;
1912 }
1913
1914 done:
1915 spin_lock_irqsave(&data->txlock, flags);
1916 data->tx_in_flight--;
1917 spin_unlock_irqrestore(&data->txlock, flags);
1918
1919 kfree(urb->setup_packet);
1920
1921 kfree_skb(skb);
1922 }
1923
btusb_isoc_tx_complete(struct urb * urb)1924 static void btusb_isoc_tx_complete(struct urb *urb)
1925 {
1926 struct sk_buff *skb = urb->context;
1927 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1928
1929 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1930 urb->actual_length);
1931
1932 if (!test_bit(HCI_RUNNING, &hdev->flags))
1933 goto done;
1934
1935 if (!urb->status)
1936 hdev->stat.byte_tx += urb->transfer_buffer_length;
1937 else
1938 hdev->stat.err_tx++;
1939
1940 done:
1941 kfree(urb->setup_packet);
1942
1943 kfree_skb(skb);
1944 }
1945
btusb_open(struct hci_dev * hdev)1946 static int btusb_open(struct hci_dev *hdev)
1947 {
1948 struct btusb_data *data = hci_get_drvdata(hdev);
1949 int err;
1950
1951 BT_DBG("%s", hdev->name);
1952
1953 err = usb_autopm_get_interface(data->intf);
1954 if (err < 0)
1955 return err;
1956
1957 /* Patching USB firmware files prior to starting any URBs of HCI path
1958 * It is more safe to use USB bulk channel for downloading USB patch
1959 */
1960 if (data->setup_on_usb) {
1961 err = data->setup_on_usb(hdev);
1962 if (err < 0)
1963 goto setup_fail;
1964 }
1965
1966 data->intf->needs_remote_wakeup = 1;
1967
1968 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
1969 goto done;
1970
1971 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
1972 if (err < 0)
1973 goto failed;
1974
1975 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1976 if (err < 0) {
1977 usb_kill_anchored_urbs(&data->intr_anchor);
1978 goto failed;
1979 }
1980
1981 set_bit(BTUSB_BULK_RUNNING, &data->flags);
1982 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1983
1984 if (data->diag) {
1985 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL))
1986 set_bit(BTUSB_DIAG_RUNNING, &data->flags);
1987 }
1988
1989 done:
1990 usb_autopm_put_interface(data->intf);
1991 return 0;
1992
1993 failed:
1994 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1995 setup_fail:
1996 usb_autopm_put_interface(data->intf);
1997 return err;
1998 }
1999
btusb_stop_traffic(struct btusb_data * data)2000 static void btusb_stop_traffic(struct btusb_data *data)
2001 {
2002 usb_kill_anchored_urbs(&data->intr_anchor);
2003 usb_kill_anchored_urbs(&data->bulk_anchor);
2004 usb_kill_anchored_urbs(&data->isoc_anchor);
2005 usb_kill_anchored_urbs(&data->diag_anchor);
2006 usb_kill_anchored_urbs(&data->ctrl_anchor);
2007 }
2008
btusb_close(struct hci_dev * hdev)2009 static int btusb_close(struct hci_dev *hdev)
2010 {
2011 struct btusb_data *data = hci_get_drvdata(hdev);
2012 int err;
2013
2014 BT_DBG("%s", hdev->name);
2015
2016 cancel_delayed_work(&data->rx_work);
2017 cancel_work_sync(&data->work);
2018 cancel_work_sync(&data->waker);
2019
2020 skb_queue_purge(&data->acl_q);
2021
2022 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2023 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
2024 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
2025 clear_bit(BTUSB_DIAG_RUNNING, &data->flags);
2026
2027 btusb_stop_traffic(data);
2028 btusb_free_frags(data);
2029
2030 err = usb_autopm_get_interface(data->intf);
2031 if (err < 0)
2032 goto failed;
2033
2034 data->intf->needs_remote_wakeup = 0;
2035
2036 /* Enable remote wake up for auto-suspend */
2037 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags))
2038 data->intf->needs_remote_wakeup = 1;
2039
2040 usb_autopm_put_interface(data->intf);
2041
2042 failed:
2043 usb_scuttle_anchored_urbs(&data->deferred);
2044 return 0;
2045 }
2046
btusb_flush(struct hci_dev * hdev)2047 static int btusb_flush(struct hci_dev *hdev)
2048 {
2049 struct btusb_data *data = hci_get_drvdata(hdev);
2050
2051 BT_DBG("%s", hdev->name);
2052
2053 cancel_delayed_work(&data->rx_work);
2054
2055 skb_queue_purge(&data->acl_q);
2056
2057 usb_kill_anchored_urbs(&data->tx_anchor);
2058 btusb_free_frags(data);
2059
2060 return 0;
2061 }
2062
alloc_ctrl_urb(struct hci_dev * hdev,struct sk_buff * skb)2063 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
2064 {
2065 struct btusb_data *data = hci_get_drvdata(hdev);
2066 struct usb_ctrlrequest *dr;
2067 struct urb *urb;
2068 unsigned int pipe;
2069
2070 urb = usb_alloc_urb(0, GFP_KERNEL);
2071 if (!urb)
2072 return ERR_PTR(-ENOMEM);
2073
2074 dr = kmalloc_obj(*dr);
2075 if (!dr) {
2076 usb_free_urb(urb);
2077 return ERR_PTR(-ENOMEM);
2078 }
2079
2080 dr->bRequestType = data->cmdreq_type;
2081 dr->bRequest = data->cmdreq;
2082 dr->wIndex = 0;
2083 dr->wValue = 0;
2084 dr->wLength = __cpu_to_le16(skb->len);
2085
2086 pipe = usb_sndctrlpipe(data->udev, 0x00);
2087
2088 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
2089 skb->data, skb->len, btusb_tx_complete, skb);
2090
2091 skb->dev = (void *)hdev;
2092
2093 return urb;
2094 }
2095
alloc_bulk_urb(struct hci_dev * hdev,struct sk_buff * skb)2096 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
2097 {
2098 struct btusb_data *data = hci_get_drvdata(hdev);
2099 struct urb *urb;
2100 unsigned int pipe;
2101
2102 if (!data->bulk_tx_ep)
2103 return ERR_PTR(-ENODEV);
2104
2105 urb = usb_alloc_urb(0, GFP_KERNEL);
2106 if (!urb)
2107 return ERR_PTR(-ENOMEM);
2108
2109 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
2110
2111 usb_fill_bulk_urb(urb, data->udev, pipe,
2112 skb->data, skb->len, btusb_tx_complete, skb);
2113
2114 skb->dev = (void *)hdev;
2115
2116 return urb;
2117 }
2118
alloc_isoc_urb(struct hci_dev * hdev,struct sk_buff * skb)2119 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
2120 {
2121 struct btusb_data *data = hci_get_drvdata(hdev);
2122 struct urb *urb;
2123 unsigned int pipe;
2124
2125 if (!data->isoc_tx_ep)
2126 return ERR_PTR(-ENODEV);
2127
2128 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
2129 if (!urb)
2130 return ERR_PTR(-ENOMEM);
2131
2132 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
2133
2134 usb_fill_int_urb(urb, data->udev, pipe,
2135 skb->data, skb->len, btusb_isoc_tx_complete,
2136 skb, data->isoc_tx_ep->bInterval);
2137
2138 urb->transfer_flags = URB_ISO_ASAP;
2139
2140 if (data->isoc_altsetting == 6)
2141 __fill_isoc_descriptor_msbc(urb, skb->len,
2142 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize),
2143 data);
2144 else
2145 __fill_isoc_descriptor(urb, skb->len,
2146 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
2147 skb->dev = (void *)hdev;
2148
2149 return urb;
2150 }
2151
submit_tx_urb(struct hci_dev * hdev,struct urb * urb)2152 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
2153 {
2154 struct btusb_data *data = hci_get_drvdata(hdev);
2155 int err;
2156
2157 usb_anchor_urb(urb, &data->tx_anchor);
2158
2159 err = usb_submit_urb(urb, GFP_KERNEL);
2160 if (err < 0) {
2161 if (err != -EPERM && err != -ENODEV)
2162 bt_dev_err(hdev, "urb %p submission failed (%d)",
2163 urb, -err);
2164 kfree(urb->setup_packet);
2165 usb_unanchor_urb(urb);
2166 } else {
2167 usb_mark_last_busy(data->udev);
2168 }
2169
2170 usb_free_urb(urb);
2171 return err;
2172 }
2173
submit_or_queue_tx_urb(struct hci_dev * hdev,struct urb * urb)2174 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
2175 {
2176 struct btusb_data *data = hci_get_drvdata(hdev);
2177 unsigned long flags;
2178 bool suspending;
2179
2180 spin_lock_irqsave(&data->txlock, flags);
2181 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
2182 if (!suspending)
2183 data->tx_in_flight++;
2184 spin_unlock_irqrestore(&data->txlock, flags);
2185
2186 if (!suspending)
2187 return submit_tx_urb(hdev, urb);
2188
2189 usb_anchor_urb(urb, &data->deferred);
2190 schedule_work(&data->waker);
2191
2192 usb_free_urb(urb);
2193 return 0;
2194 }
2195
btusb_send_frame(struct hci_dev * hdev,struct sk_buff * skb)2196 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
2197 {
2198 struct urb *urb;
2199
2200 BT_DBG("%s", hdev->name);
2201
2202 switch (hci_skb_pkt_type(skb)) {
2203 case HCI_COMMAND_PKT:
2204 urb = alloc_ctrl_urb(hdev, skb);
2205 if (IS_ERR(urb))
2206 return PTR_ERR(urb);
2207
2208 hdev->stat.cmd_tx++;
2209 return submit_or_queue_tx_urb(hdev, urb);
2210
2211 case HCI_ACLDATA_PKT:
2212 urb = alloc_bulk_urb(hdev, skb);
2213 if (IS_ERR(urb))
2214 return PTR_ERR(urb);
2215
2216 hdev->stat.acl_tx++;
2217 return submit_or_queue_tx_urb(hdev, urb);
2218
2219 case HCI_SCODATA_PKT:
2220 if (!hci_dev_test_flag(hdev, HCI_USER_CHANNEL) &&
2221 hci_conn_num(hdev, SCO_LINK) < 1)
2222 return -ENODEV;
2223
2224 urb = alloc_isoc_urb(hdev, skb);
2225 if (IS_ERR(urb))
2226 return PTR_ERR(urb);
2227
2228 hdev->stat.sco_tx++;
2229 return submit_tx_urb(hdev, urb);
2230
2231 case HCI_ISODATA_PKT:
2232 urb = alloc_bulk_urb(hdev, skb);
2233 if (IS_ERR(urb))
2234 return PTR_ERR(urb);
2235
2236 return submit_or_queue_tx_urb(hdev, urb);
2237 }
2238
2239 return -EILSEQ;
2240 }
2241
btusb_notify(struct hci_dev * hdev,unsigned int evt)2242 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
2243 {
2244 struct btusb_data *data = hci_get_drvdata(hdev);
2245
2246 BT_DBG("%s evt %d", hdev->name, evt);
2247
2248 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
2249 data->sco_num = hci_conn_num(hdev, SCO_LINK);
2250 data->air_mode = evt;
2251 schedule_work(&data->work);
2252 }
2253 }
2254
__set_isoc_interface(struct hci_dev * hdev,int altsetting)2255 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
2256 {
2257 struct btusb_data *data = hci_get_drvdata(hdev);
2258 struct usb_interface *intf = data->isoc;
2259 struct usb_endpoint_descriptor *ep_desc;
2260 int i, err;
2261
2262 if (!data->isoc)
2263 return -ENODEV;
2264
2265 err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting);
2266 if (err < 0) {
2267 bt_dev_err(hdev, "setting interface failed (%d)", -err);
2268 return err;
2269 }
2270
2271 data->isoc_altsetting = altsetting;
2272
2273 data->isoc_tx_ep = NULL;
2274 data->isoc_rx_ep = NULL;
2275
2276 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2277 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2278
2279 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
2280 data->isoc_tx_ep = ep_desc;
2281 continue;
2282 }
2283
2284 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
2285 data->isoc_rx_ep = ep_desc;
2286 continue;
2287 }
2288 }
2289
2290 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
2291 bt_dev_err(hdev, "invalid SCO descriptors");
2292 return -ENODEV;
2293 }
2294
2295 return 0;
2296 }
2297
btusb_switch_alt_setting(struct hci_dev * hdev,int new_alts)2298 static int btusb_switch_alt_setting(struct hci_dev *hdev, int new_alts)
2299 {
2300 struct btusb_data *data = hci_get_drvdata(hdev);
2301 int err;
2302
2303 if (data->isoc_altsetting != new_alts) {
2304 unsigned long flags;
2305
2306 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2307 usb_kill_anchored_urbs(&data->isoc_anchor);
2308
2309 /* When isochronous alternate setting needs to be
2310 * changed, because SCO connection has been added
2311 * or removed, a packet fragment may be left in the
2312 * reassembling state. This could lead to wrongly
2313 * assembled fragments.
2314 *
2315 * Clear outstanding fragment when selecting a new
2316 * alternate setting.
2317 */
2318 spin_lock_irqsave(&data->rxlock, flags);
2319 dev_kfree_skb_irq(data->sco_skb);
2320 data->sco_skb = NULL;
2321 spin_unlock_irqrestore(&data->rxlock, flags);
2322
2323 err = __set_isoc_interface(hdev, new_alts);
2324 if (err < 0)
2325 return err;
2326 }
2327
2328 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2329 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
2330 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2331 else
2332 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
2333 }
2334
2335 return 0;
2336 }
2337
btusb_find_altsetting(struct btusb_data * data,int alt)2338 static struct usb_host_interface *btusb_find_altsetting(struct btusb_data *data,
2339 int alt)
2340 {
2341 struct usb_interface *intf = data->isoc;
2342 int i;
2343
2344 BT_DBG("Looking for Alt no :%d", alt);
2345
2346 if (!intf)
2347 return NULL;
2348
2349 for (i = 0; i < intf->num_altsetting; i++) {
2350 if (intf->altsetting[i].desc.bAlternateSetting == alt)
2351 return &intf->altsetting[i];
2352 }
2353
2354 return NULL;
2355 }
2356
btusb_work(struct work_struct * work)2357 static void btusb_work(struct work_struct *work)
2358 {
2359 struct btusb_data *data = container_of(work, struct btusb_data, work);
2360 struct hci_dev *hdev = data->hdev;
2361 int new_alts = 0;
2362 int err;
2363
2364 if (data->sco_num > 0) {
2365 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
2366 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
2367 if (err < 0) {
2368 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2369 usb_kill_anchored_urbs(&data->isoc_anchor);
2370 return;
2371 }
2372
2373 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
2374 }
2375
2376 if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_CVSD) {
2377 if (hdev->voice_setting & 0x0020) {
2378 static const int alts[3] = { 2, 4, 5 };
2379
2380 new_alts = alts[data->sco_num - 1];
2381 } else {
2382 new_alts = data->sco_num;
2383 }
2384 } else if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_TRANSP) {
2385 /* Bluetooth USB spec recommends alt 6 (63 bytes), but
2386 * many adapters do not support it. Alt 1 appears to
2387 * work for all adapters that do not have alt 6, and
2388 * which work with WBS at all. Some devices prefer
2389 * alt 3 (HCI payload >= 60 Bytes let air packet
2390 * data satisfy 60 bytes), requiring
2391 * MTU >= 3 (packets) * 25 (size) - 3 (headers) = 72
2392 * see also Core spec 5, vol 4, B 2.1.1 & Table 2.1.
2393 */
2394 if (btusb_find_altsetting(data, 6))
2395 new_alts = 6;
2396 else if (btusb_find_altsetting(data, 3) &&
2397 hdev->sco_mtu >= 72 &&
2398 test_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags))
2399 new_alts = 3;
2400 else
2401 new_alts = 1;
2402 }
2403
2404 if (btusb_switch_alt_setting(hdev, new_alts) < 0)
2405 bt_dev_err(hdev, "set USB alt:(%d) failed!", new_alts);
2406 } else {
2407 usb_kill_anchored_urbs(&data->isoc_anchor);
2408
2409 if (test_and_clear_bit(BTUSB_ISOC_RUNNING, &data->flags))
2410 __set_isoc_interface(hdev, 0);
2411
2412 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
2413 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
2414 }
2415 }
2416
btusb_waker(struct work_struct * work)2417 static void btusb_waker(struct work_struct *work)
2418 {
2419 struct btusb_data *data = container_of(work, struct btusb_data, waker);
2420 int err;
2421
2422 err = usb_autopm_get_interface(data->intf);
2423 if (err < 0)
2424 return;
2425
2426 usb_autopm_put_interface(data->intf);
2427 }
2428
btusb_rx_work(struct work_struct * work)2429 static void btusb_rx_work(struct work_struct *work)
2430 {
2431 struct btusb_data *data = container_of(work, struct btusb_data,
2432 rx_work.work);
2433 struct sk_buff *skb;
2434
2435 /* Dequeue ACL data received during the interval */
2436 while ((skb = skb_dequeue(&data->acl_q)))
2437 data->recv_acl(data->hdev, skb);
2438 }
2439
btusb_setup_bcm92035(struct hci_dev * hdev)2440 static int btusb_setup_bcm92035(struct hci_dev *hdev)
2441 {
2442 struct sk_buff *skb;
2443 u8 val = 0x00;
2444
2445 BT_DBG("%s", hdev->name);
2446
2447 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
2448 if (IS_ERR(skb))
2449 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb));
2450 else
2451 kfree_skb(skb);
2452
2453 return 0;
2454 }
2455
btusb_setup_csr(struct hci_dev * hdev)2456 static int btusb_setup_csr(struct hci_dev *hdev)
2457 {
2458 struct btusb_data *data = hci_get_drvdata(hdev);
2459 u16 bcdDevice = le16_to_cpu(data->udev->descriptor.bcdDevice);
2460 struct hci_rp_read_local_version *rp;
2461 struct sk_buff *skb;
2462 bool is_fake = false;
2463 int ret;
2464
2465 BT_DBG("%s", hdev->name);
2466
2467 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
2468 HCI_INIT_TIMEOUT);
2469 if (IS_ERR(skb)) {
2470 int err = PTR_ERR(skb);
2471 bt_dev_err(hdev, "CSR: Local version failed (%d)", err);
2472 return err;
2473 }
2474
2475 rp = skb_pull_data(skb, sizeof(*rp));
2476 if (!rp) {
2477 bt_dev_err(hdev, "CSR: Local version length mismatch");
2478 kfree_skb(skb);
2479 return -EIO;
2480 }
2481
2482 bt_dev_info(hdev, "CSR: Setting up dongle with HCI ver=%u rev=%04x",
2483 rp->hci_ver, le16_to_cpu(rp->hci_rev));
2484
2485 bt_dev_info(hdev, "LMP ver=%u subver=%04x; manufacturer=%u",
2486 rp->lmp_ver, le16_to_cpu(rp->lmp_subver),
2487 le16_to_cpu(rp->manufacturer));
2488
2489 /* Detect a wide host of Chinese controllers that aren't CSR.
2490 *
2491 * Known fake bcdDevices: 0x0100, 0x0134, 0x1915, 0x2520, 0x7558, 0x8891
2492 *
2493 * The main thing they have in common is that these are really popular low-cost
2494 * options that support newer Bluetooth versions but rely on heavy VID/PID
2495 * squatting of this poor old Bluetooth 1.1 device. Even sold as such.
2496 *
2497 * We detect actual CSR devices by checking that the HCI manufacturer code
2498 * is Cambridge Silicon Radio (10) and ensuring that LMP sub-version and
2499 * HCI rev values always match. As they both store the firmware number.
2500 */
2501 if (le16_to_cpu(rp->manufacturer) != 10 ||
2502 le16_to_cpu(rp->hci_rev) != le16_to_cpu(rp->lmp_subver))
2503 is_fake = true;
2504
2505 /* Known legit CSR firmware build numbers and their supported BT versions:
2506 * - 1.1 (0x1) -> 0x0073, 0x020d, 0x033c, 0x034e
2507 * - 1.2 (0x2) -> 0x04d9, 0x0529
2508 * - 2.0 (0x3) -> 0x07a6, 0x07ad, 0x0c5c
2509 * - 2.1 (0x4) -> 0x149c, 0x1735, 0x1899 (0x1899 is a BlueCore4-External)
2510 * - 4.0 (0x6) -> 0x1d86, 0x2031, 0x22bb
2511 *
2512 * e.g. Real CSR dongles with LMP subversion 0x73 are old enough that
2513 * support BT 1.1 only; so it's a dead giveaway when some
2514 * third-party BT 4.0 dongle reuses it.
2515 */
2516 else if (le16_to_cpu(rp->lmp_subver) <= 0x034e &&
2517 rp->hci_ver > BLUETOOTH_VER_1_1)
2518 is_fake = true;
2519
2520 else if (le16_to_cpu(rp->lmp_subver) <= 0x0529 &&
2521 rp->hci_ver > BLUETOOTH_VER_1_2)
2522 is_fake = true;
2523
2524 else if (le16_to_cpu(rp->lmp_subver) <= 0x0c5c &&
2525 rp->hci_ver > BLUETOOTH_VER_2_0)
2526 is_fake = true;
2527
2528 else if (le16_to_cpu(rp->lmp_subver) <= 0x1899 &&
2529 rp->hci_ver > BLUETOOTH_VER_2_1)
2530 is_fake = true;
2531
2532 else if (le16_to_cpu(rp->lmp_subver) <= 0x22bb &&
2533 rp->hci_ver > BLUETOOTH_VER_4_0)
2534 is_fake = true;
2535
2536 /* Other clones which beat all the above checks */
2537 else if (bcdDevice == 0x0134 &&
2538 le16_to_cpu(rp->lmp_subver) == 0x0c5c &&
2539 rp->hci_ver == BLUETOOTH_VER_2_0)
2540 is_fake = true;
2541
2542 if (is_fake) {
2543 bt_dev_warn(hdev, "CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once...");
2544
2545 /* Generally these clones have big discrepancies between
2546 * advertised features and what's actually supported.
2547 * Probably will need to be expanded in the future;
2548 * without these the controller will lock up.
2549 */
2550 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_STORED_LINK_KEY);
2551 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_ERR_DATA_REPORTING);
2552 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_FILTER_CLEAR_ALL);
2553 hci_set_quirk(hdev, HCI_QUIRK_NO_SUSPEND_NOTIFIER);
2554 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_READ_VOICE_SETTING);
2555 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_READ_PAGE_SCAN_TYPE);
2556
2557 /* Clear the reset quirk since this is not an actual
2558 * early Bluetooth 1.1 device from CSR.
2559 */
2560 hci_clear_quirk(hdev, HCI_QUIRK_RESET_ON_CLOSE);
2561 hci_clear_quirk(hdev, HCI_QUIRK_SIMULTANEOUS_DISCOVERY);
2562
2563 /*
2564 * Special workaround for these BT 4.0 chip clones, and potentially more:
2565 *
2566 * - 0x0134: a Barrot 8041a02 (HCI rev: 0x0810 sub: 0x1012)
2567 * - 0x7558: IC markings FR3191AHAL 749H15143 (HCI rev/sub-version: 0x0709)
2568 *
2569 * These controllers are really messed-up.
2570 *
2571 * 1. Their bulk RX endpoint will never report any data unless
2572 * the device was suspended at least once (yes, really).
2573 * 2. They will not wakeup when autosuspended and receiving data
2574 * on their bulk RX endpoint from e.g. a keyboard or mouse
2575 * (IOW remote-wakeup support is broken for the bulk endpoint).
2576 *
2577 * To fix 1. enable runtime-suspend, force-suspend the
2578 * HCI and then wake-it up by disabling runtime-suspend.
2579 *
2580 * To fix 2. clear the HCI's can_wake flag, this way the HCI
2581 * will still be autosuspended when it is not open.
2582 *
2583 * --
2584 *
2585 * Because these are widespread problems we prefer generic solutions; so
2586 * apply this initialization quirk to every controller that gets here,
2587 * it should be harmless. The alternative is to not work at all.
2588 */
2589 pm_runtime_allow(&data->udev->dev);
2590
2591 ret = pm_runtime_suspend(&data->udev->dev);
2592 if (ret >= 0)
2593 msleep(200);
2594 else
2595 bt_dev_warn(hdev, "CSR: Couldn't suspend the device for our Barrot 8041a02 receive-issue workaround");
2596
2597 pm_runtime_forbid(&data->udev->dev);
2598
2599 device_set_wakeup_capable(&data->udev->dev, false);
2600
2601 /* Re-enable autosuspend if this was requested */
2602 if (enable_autosuspend)
2603 usb_enable_autosuspend(data->udev);
2604 }
2605
2606 kfree_skb(skb);
2607
2608 return 0;
2609 }
2610
inject_cmd_complete(struct hci_dev * hdev,__u16 opcode)2611 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
2612 {
2613 struct sk_buff *skb;
2614 struct hci_event_hdr *hdr;
2615 struct hci_ev_cmd_complete *evt;
2616
2617 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL);
2618 if (!skb)
2619 return -ENOMEM;
2620
2621 hdr = skb_put(skb, sizeof(*hdr));
2622 hdr->evt = HCI_EV_CMD_COMPLETE;
2623 hdr->plen = sizeof(*evt) + 1;
2624
2625 evt = skb_put(skb, sizeof(*evt));
2626 evt->ncmd = 0x01;
2627 evt->opcode = cpu_to_le16(opcode);
2628
2629 skb_put_u8(skb, 0x00);
2630
2631 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
2632
2633 return hci_recv_frame(hdev, skb);
2634 }
2635
btusb_recv_bulk_intel(struct btusb_data * data,void * buffer,int count)2636 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
2637 int count)
2638 {
2639 struct hci_dev *hdev = data->hdev;
2640
2641 /* When the device is in bootloader mode, then it can send
2642 * events via the bulk endpoint. These events are treated the
2643 * same way as the ones received from the interrupt endpoint.
2644 */
2645 if (btintel_test_flag(hdev, INTEL_BOOTLOADER))
2646 return btusb_recv_intr(data, buffer, count);
2647
2648 return btusb_recv_bulk(data, buffer, count);
2649 }
2650
btusb_send_frame_intel(struct hci_dev * hdev,struct sk_buff * skb)2651 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
2652 {
2653 struct urb *urb;
2654
2655 BT_DBG("%s", hdev->name);
2656
2657 switch (hci_skb_pkt_type(skb)) {
2658 case HCI_COMMAND_PKT:
2659 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) {
2660 struct hci_command_hdr *cmd = (void *)skb->data;
2661 __u16 opcode = le16_to_cpu(cmd->opcode);
2662
2663 /* When in bootloader mode and the command 0xfc09
2664 * is received, it needs to be send down the
2665 * bulk endpoint. So allocate a bulk URB instead.
2666 */
2667 if (opcode == 0xfc09)
2668 urb = alloc_bulk_urb(hdev, skb);
2669 else
2670 urb = alloc_ctrl_urb(hdev, skb);
2671
2672 /* When the BTINTEL_HCI_OP_RESET command is issued to
2673 * boot into the operational firmware, it will actually
2674 * not send a command complete event. To keep the flow
2675 * control working inject that event here.
2676 */
2677 if (opcode == BTINTEL_HCI_OP_RESET)
2678 inject_cmd_complete(hdev, opcode);
2679 } else {
2680 urb = alloc_ctrl_urb(hdev, skb);
2681 }
2682 if (IS_ERR(urb))
2683 return PTR_ERR(urb);
2684
2685 hdev->stat.cmd_tx++;
2686 return submit_or_queue_tx_urb(hdev, urb);
2687
2688 case HCI_ACLDATA_PKT:
2689 urb = alloc_bulk_urb(hdev, skb);
2690 if (IS_ERR(urb))
2691 return PTR_ERR(urb);
2692
2693 hdev->stat.acl_tx++;
2694 return submit_or_queue_tx_urb(hdev, urb);
2695
2696 case HCI_SCODATA_PKT:
2697 if (!hci_dev_test_flag(hdev, HCI_USER_CHANNEL) &&
2698 hci_conn_num(hdev, SCO_LINK) < 1)
2699 return -ENODEV;
2700
2701 urb = alloc_isoc_urb(hdev, skb);
2702 if (IS_ERR(urb))
2703 return PTR_ERR(urb);
2704
2705 hdev->stat.sco_tx++;
2706 return submit_tx_urb(hdev, urb);
2707
2708 case HCI_ISODATA_PKT:
2709 urb = alloc_bulk_urb(hdev, skb);
2710 if (IS_ERR(urb))
2711 return PTR_ERR(urb);
2712
2713 return submit_or_queue_tx_urb(hdev, urb);
2714 }
2715
2716 return -EILSEQ;
2717 }
2718
btusb_setup_realtek(struct hci_dev * hdev)2719 static int btusb_setup_realtek(struct hci_dev *hdev)
2720 {
2721 struct btusb_data *data = hci_get_drvdata(hdev);
2722 int ret;
2723
2724 ret = btrtl_setup_realtek(hdev);
2725
2726 if (btrealtek_test_flag(data->hdev, REALTEK_ALT6_CONTINUOUS_TX_CHIP))
2727 set_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags);
2728
2729 return ret;
2730 }
2731
btusb_recv_event_realtek(struct hci_dev * hdev,struct sk_buff * skb)2732 static int btusb_recv_event_realtek(struct hci_dev *hdev, struct sk_buff *skb)
2733 {
2734 if (skb->data[0] == HCI_VENDOR_PKT && skb->data[2] == RTK_SUB_EVENT_CODE_COREDUMP) {
2735 struct rtk_dev_coredump_hdr hdr = {
2736 .code = RTK_DEVCOREDUMP_CODE_MEMDUMP,
2737 };
2738
2739 bt_dev_dbg(hdev, "RTL: received coredump vendor evt, len %u",
2740 skb->len);
2741
2742 btusb_rtl_alloc_devcoredump(hdev, &hdr, skb->data, skb->len);
2743 kfree_skb(skb);
2744
2745 return 0;
2746 }
2747
2748 return hci_recv_frame(hdev, skb);
2749 }
2750
btusb_mtk_claim_iso_intf(struct btusb_data * data)2751 static void btusb_mtk_claim_iso_intf(struct btusb_data *data)
2752 {
2753 struct btmtk_data *btmtk_data;
2754 int err;
2755
2756 if (!data->hdev)
2757 return;
2758
2759 btmtk_data = hci_get_priv(data->hdev);
2760 if (!btmtk_data)
2761 return;
2762
2763 if (!btmtk_data->isopkt_intf) {
2764 bt_dev_err(data->hdev, "Can't claim NULL iso interface");
2765 return;
2766 }
2767
2768 /*
2769 * The function usb_driver_claim_interface() is documented to need
2770 * locks held if it's not called from a probe routine. The code here
2771 * is called from the hci_power_on workqueue, so grab the lock.
2772 */
2773 device_lock(&btmtk_data->isopkt_intf->dev);
2774 err = usb_driver_claim_interface(&btusb_driver,
2775 btmtk_data->isopkt_intf, data);
2776 device_unlock(&btmtk_data->isopkt_intf->dev);
2777 if (err < 0) {
2778 btmtk_data->isopkt_intf = NULL;
2779 bt_dev_err(data->hdev, "Failed to claim iso interface: %d", err);
2780 return;
2781 }
2782
2783 set_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags);
2784 init_usb_anchor(&btmtk_data->isopkt_anchor);
2785 }
2786
btusb_mtk_release_iso_intf(struct hci_dev * hdev)2787 static void btusb_mtk_release_iso_intf(struct hci_dev *hdev)
2788 {
2789 struct btmtk_data *btmtk_data;
2790
2791 if (!hdev)
2792 return;
2793
2794 btmtk_data = hci_get_priv(hdev);
2795 if (!btmtk_data)
2796 return;
2797
2798 if (test_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags)) {
2799 usb_kill_anchored_urbs(&btmtk_data->isopkt_anchor);
2800 clear_bit(BTMTK_ISOPKT_RUNNING, &btmtk_data->flags);
2801
2802 if (btmtk_data->isopkt_skb) {
2803 dev_kfree_skb_irq(btmtk_data->isopkt_skb);
2804 btmtk_data->isopkt_skb = NULL;
2805 }
2806
2807 if (btmtk_data->isopkt_intf) {
2808 usb_set_intfdata(btmtk_data->isopkt_intf, NULL);
2809 usb_driver_release_interface(&btusb_driver,
2810 btmtk_data->isopkt_intf);
2811 btmtk_data->isopkt_intf = NULL;
2812 }
2813 }
2814
2815 clear_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags);
2816 }
2817
btusb_mtk_disconnect(struct hci_dev * hdev)2818 static int btusb_mtk_disconnect(struct hci_dev *hdev)
2819 {
2820 /* This function describes the specific additional steps taken by MediaTek
2821 * when Bluetooth usb driver's resume function is called.
2822 */
2823 btusb_mtk_release_iso_intf(hdev);
2824
2825 return 0;
2826 }
2827
btusb_mtk_reset(struct hci_dev * hdev,void * rst_data)2828 static int btusb_mtk_reset(struct hci_dev *hdev, void *rst_data)
2829 {
2830 struct btusb_data *data = hci_get_drvdata(hdev);
2831 struct btmtk_data *btmtk_data = hci_get_priv(hdev);
2832 int err;
2833
2834 /* It's MediaTek specific bluetooth reset mechanism via USB */
2835 if (test_and_set_bit(BTMTK_HW_RESET_ACTIVE, &btmtk_data->flags)) {
2836 bt_dev_err(hdev, "last reset failed? Not resetting again");
2837 return -EBUSY;
2838 }
2839
2840 err = usb_autopm_get_interface(data->intf);
2841 if (err < 0)
2842 return err;
2843
2844 /* Release MediaTek ISO data interface */
2845 btusb_mtk_release_iso_intf(hdev);
2846
2847 btusb_stop_traffic(data);
2848 usb_kill_anchored_urbs(&data->tx_anchor);
2849
2850 /* Toggle the hard reset line. The MediaTek device is going to
2851 * yank itself off the USB and then replug. The cleanup is handled
2852 * correctly on the way out (standard USB disconnect), and the new
2853 * device is detected cleanly and bound to the driver again like
2854 * it should be.
2855 */
2856 if (data->reset_gpio) {
2857 gpiod_set_value_cansleep(data->reset_gpio, 1);
2858 msleep(200);
2859 gpiod_set_value_cansleep(data->reset_gpio, 0);
2860 return 0;
2861 }
2862
2863 err = btmtk_usb_subsys_reset(hdev, btmtk_data->dev_id);
2864
2865 usb_queue_reset_device(data->intf);
2866 clear_bit(BTMTK_HW_RESET_ACTIVE, &btmtk_data->flags);
2867
2868 return err;
2869 }
2870
btusb_send_frame_mtk(struct hci_dev * hdev,struct sk_buff * skb)2871 static int btusb_send_frame_mtk(struct hci_dev *hdev, struct sk_buff *skb)
2872 {
2873 struct urb *urb;
2874
2875 BT_DBG("%s", hdev->name);
2876
2877 if (hci_skb_pkt_type(skb) == HCI_ISODATA_PKT) {
2878 urb = alloc_mtk_intr_urb(hdev, skb, btusb_tx_complete);
2879 if (IS_ERR(urb))
2880 return PTR_ERR(urb);
2881
2882 return submit_or_queue_tx_urb(hdev, urb);
2883 } else {
2884 return btusb_send_frame(hdev, skb);
2885 }
2886 }
2887
btusb_mtk_setup(struct hci_dev * hdev)2888 static int btusb_mtk_setup(struct hci_dev *hdev)
2889 {
2890 struct btusb_data *data = hci_get_drvdata(hdev);
2891 struct btmtk_data *btmtk_data = hci_get_priv(hdev);
2892
2893 /* MediaTek WMT vendor cmd requiring below USB resources to
2894 * complete the handshake.
2895 */
2896 btmtk_data->drv_name = btusb_driver.name;
2897 btmtk_data->intf = data->intf;
2898 btmtk_data->udev = data->udev;
2899 btmtk_data->ctrl_anchor = &data->ctrl_anchor;
2900 btmtk_data->reset_sync = btusb_mtk_reset;
2901
2902 /* Claim ISO data interface and endpoint */
2903 if (!test_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags)) {
2904 btmtk_data->isopkt_intf = usb_ifnum_to_if(data->udev, MTK_ISO_IFNUM);
2905 btusb_mtk_claim_iso_intf(data);
2906 }
2907
2908 return btmtk_usb_setup(hdev);
2909 }
2910
btusb_mtk_shutdown(struct hci_dev * hdev)2911 static int btusb_mtk_shutdown(struct hci_dev *hdev)
2912 {
2913 int ret;
2914
2915 ret = btmtk_usb_shutdown(hdev);
2916
2917 /* Release MediaTek iso interface after shutdown */
2918 btusb_mtk_release_iso_intf(hdev);
2919
2920 return ret;
2921 }
2922
2923 #ifdef CONFIG_PM
2924 /* Configure an out-of-band gpio as wake-up pin, if specified in device tree */
marvell_config_oob_wake(struct hci_dev * hdev)2925 static int marvell_config_oob_wake(struct hci_dev *hdev)
2926 {
2927 struct sk_buff *skb;
2928 struct btusb_data *data = hci_get_drvdata(hdev);
2929 struct device *dev = &data->udev->dev;
2930 u16 pin, gap, opcode;
2931 int ret;
2932 u8 cmd[5];
2933
2934 /* Move on if no wakeup pin specified */
2935 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) ||
2936 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap))
2937 return 0;
2938
2939 /* Vendor specific command to configure a GPIO as wake-up pin */
2940 opcode = hci_opcode_pack(0x3F, 0x59);
2941 cmd[0] = opcode & 0xFF;
2942 cmd[1] = opcode >> 8;
2943 cmd[2] = 2; /* length of parameters that follow */
2944 cmd[3] = pin;
2945 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */
2946
2947 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
2948 if (!skb) {
2949 bt_dev_err(hdev, "%s: No memory", __func__);
2950 return -ENOMEM;
2951 }
2952
2953 skb_put_data(skb, cmd, sizeof(cmd));
2954 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT;
2955
2956 ret = btusb_send_frame(hdev, skb);
2957 if (ret) {
2958 bt_dev_err(hdev, "%s: configuration failed", __func__);
2959 kfree_skb(skb);
2960 return ret;
2961 }
2962
2963 return 0;
2964 }
2965 #endif
2966
btusb_set_bdaddr_marvell(struct hci_dev * hdev,const bdaddr_t * bdaddr)2967 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
2968 const bdaddr_t *bdaddr)
2969 {
2970 struct sk_buff *skb;
2971 u8 buf[8];
2972 long ret;
2973
2974 buf[0] = 0xfe;
2975 buf[1] = sizeof(bdaddr_t);
2976 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
2977
2978 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2979 if (IS_ERR(skb)) {
2980 ret = PTR_ERR(skb);
2981 bt_dev_err(hdev, "changing Marvell device address failed (%ld)",
2982 ret);
2983 return ret;
2984 }
2985 kfree_skb(skb);
2986
2987 return 0;
2988 }
2989
btusb_set_bdaddr_ath3012(struct hci_dev * hdev,const bdaddr_t * bdaddr)2990 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
2991 const bdaddr_t *bdaddr)
2992 {
2993 struct sk_buff *skb;
2994 u8 buf[10];
2995 long ret;
2996
2997 buf[0] = 0x01;
2998 buf[1] = 0x01;
2999 buf[2] = 0x00;
3000 buf[3] = sizeof(bdaddr_t);
3001 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
3002
3003 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
3004 if (IS_ERR(skb)) {
3005 ret = PTR_ERR(skb);
3006 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
3007 return ret;
3008 }
3009 kfree_skb(skb);
3010
3011 return 0;
3012 }
3013
btusb_set_bdaddr_wcn6855(struct hci_dev * hdev,const bdaddr_t * bdaddr)3014 static int btusb_set_bdaddr_wcn6855(struct hci_dev *hdev,
3015 const bdaddr_t *bdaddr)
3016 {
3017 struct sk_buff *skb;
3018 u8 buf[6];
3019 long ret;
3020
3021 memcpy(buf, bdaddr, sizeof(bdaddr_t));
3022
3023 skb = __hci_cmd_sync_ev(hdev, 0xfc14, sizeof(buf), buf,
3024 HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT);
3025 if (IS_ERR(skb)) {
3026 ret = PTR_ERR(skb);
3027 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
3028 return ret;
3029 }
3030 kfree_skb(skb);
3031
3032 return 0;
3033 }
3034
3035 #define QCA_MEMDUMP_ACL_HANDLE 0x2EDD
3036 #define QCA_MEMDUMP_SIZE_MAX 0x100000
3037 #define QCA_MEMDUMP_VSE_CLASS 0x01
3038 #define QCA_MEMDUMP_MSG_TYPE 0x08
3039 #define QCA_MEMDUMP_PKT_SIZE 248
3040 #define QCA_LAST_SEQUENCE_NUM 0xffff
3041
3042 struct qca_dump_hdr {
3043 u8 vse_class;
3044 u8 msg_type;
3045 __le16 seqno;
3046 u8 reserved;
3047 union {
3048 u8 data[0];
3049 struct {
3050 __le32 ram_dump_size;
3051 u8 data0[0];
3052 } __packed;
3053 };
3054 } __packed;
3055
3056
btusb_dump_hdr_qca(struct hci_dev * hdev,struct sk_buff * skb)3057 static void btusb_dump_hdr_qca(struct hci_dev *hdev, struct sk_buff *skb)
3058 {
3059 char buf[128];
3060 struct btusb_data *btdata = hci_get_drvdata(hdev);
3061
3062 snprintf(buf, sizeof(buf), "Controller Name: 0x%x\n",
3063 btdata->qca_dump.controller_id);
3064 skb_put_data(skb, buf, strlen(buf));
3065
3066 snprintf(buf, sizeof(buf), "Firmware Version: 0x%x\n",
3067 btdata->qca_dump.fw_version);
3068 skb_put_data(skb, buf, strlen(buf));
3069
3070 snprintf(buf, sizeof(buf), "Driver: %s\nVendor: qca\n",
3071 btusb_driver.name);
3072 skb_put_data(skb, buf, strlen(buf));
3073
3074 snprintf(buf, sizeof(buf), "VID: 0x%x\nPID:0x%x\n",
3075 btdata->qca_dump.id_vendor, btdata->qca_dump.id_product);
3076 skb_put_data(skb, buf, strlen(buf));
3077
3078 snprintf(buf, sizeof(buf), "Lmp Subversion: 0x%x\n",
3079 hdev->lmp_subver);
3080 skb_put_data(skb, buf, strlen(buf));
3081 }
3082
btusb_coredump_qca(struct hci_dev * hdev)3083 static void btusb_coredump_qca(struct hci_dev *hdev)
3084 {
3085 int err;
3086 static const u8 param[] = { 0x26 };
3087
3088 err = __hci_cmd_send(hdev, 0xfc0c, 1, param);
3089 if (err < 0)
3090 bt_dev_err(hdev, "%s: triggle crash failed (%d)", __func__, err);
3091 }
3092
3093 /* Return: 0 on success, negative errno on failure. */
handle_dump_pkt_qca(struct hci_dev * hdev,struct sk_buff * skb)3094 static int handle_dump_pkt_qca(struct hci_dev *hdev, struct sk_buff *skb)
3095 {
3096 int ret = 0;
3097 unsigned int skip = 0;
3098 u8 pkt_type;
3099 u16 seqno;
3100 u32 dump_size;
3101
3102 struct qca_dump_hdr *dump_hdr;
3103 struct btusb_data *btdata = hci_get_drvdata(hdev);
3104 struct usb_device *udev = btdata->udev;
3105
3106 pkt_type = hci_skb_pkt_type(skb);
3107 skip = sizeof(struct hci_event_hdr);
3108 if (pkt_type == HCI_ACLDATA_PKT)
3109 skip += sizeof(struct hci_acl_hdr);
3110
3111 skb_pull(skb, skip);
3112 dump_hdr = (struct qca_dump_hdr *)skb->data;
3113
3114 seqno = le16_to_cpu(dump_hdr->seqno);
3115 if (seqno == 0) {
3116 set_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags);
3117 dump_size = le32_to_cpu(dump_hdr->ram_dump_size);
3118 if (!dump_size || (dump_size > QCA_MEMDUMP_SIZE_MAX)) {
3119 ret = -EILSEQ;
3120 bt_dev_err(hdev, "Invalid memdump size(%u)",
3121 dump_size);
3122 goto out;
3123 }
3124
3125 ret = hci_devcd_init(hdev, dump_size);
3126 if (ret < 0) {
3127 bt_dev_err(hdev, "memdump init error(%d)", ret);
3128 goto out;
3129 }
3130
3131 btdata->qca_dump.ram_dump_size = dump_size;
3132 btdata->qca_dump.ram_dump_seqno = 0;
3133
3134 skb_pull(skb, offsetof(struct qca_dump_hdr, data0));
3135
3136 usb_disable_autosuspend(udev);
3137 bt_dev_info(hdev, "%s memdump size(%u)\n",
3138 (pkt_type == HCI_ACLDATA_PKT) ? "ACL" : "event",
3139 dump_size);
3140 } else {
3141 skb_pull(skb, offsetof(struct qca_dump_hdr, data));
3142 }
3143
3144 if (!btdata->qca_dump.ram_dump_size) {
3145 ret = -EINVAL;
3146 bt_dev_err(hdev, "memdump is not active");
3147 goto out;
3148 }
3149
3150 if ((seqno > btdata->qca_dump.ram_dump_seqno + 1) && (seqno != QCA_LAST_SEQUENCE_NUM)) {
3151 dump_size = QCA_MEMDUMP_PKT_SIZE * (seqno - btdata->qca_dump.ram_dump_seqno - 1);
3152 hci_devcd_append_pattern(hdev, 0x0, dump_size);
3153 bt_dev_err(hdev,
3154 "expected memdump seqno(%u) is not received(%u)\n",
3155 btdata->qca_dump.ram_dump_seqno, seqno);
3156 btdata->qca_dump.ram_dump_seqno = seqno;
3157 kfree_skb(skb);
3158 return ret;
3159 }
3160
3161 hci_devcd_append(hdev, skb);
3162 btdata->qca_dump.ram_dump_seqno++;
3163 if (seqno == QCA_LAST_SEQUENCE_NUM) {
3164 bt_dev_info(hdev,
3165 "memdump done: pkts(%u), total(%u)\n",
3166 btdata->qca_dump.ram_dump_seqno, btdata->qca_dump.ram_dump_size);
3167
3168 hci_devcd_complete(hdev);
3169 goto out;
3170 }
3171 return ret;
3172
3173 out:
3174 if (btdata->qca_dump.ram_dump_size)
3175 usb_enable_autosuspend(udev);
3176 btdata->qca_dump.ram_dump_size = 0;
3177 btdata->qca_dump.ram_dump_seqno = 0;
3178 clear_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags);
3179
3180 if (ret < 0)
3181 kfree_skb(skb);
3182 return ret;
3183 }
3184
3185 /* Return: true if the ACL packet is a dump packet, false otherwise. */
acl_pkt_is_dump_qca(struct hci_dev * hdev,struct sk_buff * skb)3186 static bool acl_pkt_is_dump_qca(struct hci_dev *hdev, struct sk_buff *skb)
3187 {
3188 struct hci_event_hdr *event_hdr;
3189 struct hci_acl_hdr *acl_hdr;
3190 struct qca_dump_hdr *dump_hdr;
3191 struct sk_buff *clone = skb_clone(skb, GFP_ATOMIC);
3192 bool is_dump = false;
3193
3194 if (!clone)
3195 return false;
3196
3197 acl_hdr = skb_pull_data(clone, sizeof(*acl_hdr));
3198 if (!acl_hdr || (le16_to_cpu(acl_hdr->handle) != QCA_MEMDUMP_ACL_HANDLE))
3199 goto out;
3200
3201 event_hdr = skb_pull_data(clone, sizeof(*event_hdr));
3202 if (!event_hdr || (event_hdr->evt != HCI_VENDOR_PKT))
3203 goto out;
3204
3205 dump_hdr = skb_pull_data(clone, sizeof(*dump_hdr));
3206 if (!dump_hdr || (dump_hdr->vse_class != QCA_MEMDUMP_VSE_CLASS) ||
3207 (dump_hdr->msg_type != QCA_MEMDUMP_MSG_TYPE))
3208 goto out;
3209
3210 is_dump = true;
3211 out:
3212 consume_skb(clone);
3213 return is_dump;
3214 }
3215
3216 /* Return: true if the event packet is a dump packet, false otherwise. */
evt_pkt_is_dump_qca(struct hci_dev * hdev,struct sk_buff * skb)3217 static bool evt_pkt_is_dump_qca(struct hci_dev *hdev, struct sk_buff *skb)
3218 {
3219 struct hci_event_hdr *event_hdr;
3220 struct qca_dump_hdr *dump_hdr;
3221 struct sk_buff *clone = skb_clone(skb, GFP_ATOMIC);
3222 bool is_dump = false;
3223
3224 if (!clone)
3225 return false;
3226
3227 event_hdr = skb_pull_data(clone, sizeof(*event_hdr));
3228 if (!event_hdr || (event_hdr->evt != HCI_VENDOR_PKT))
3229 goto out;
3230
3231 dump_hdr = skb_pull_data(clone, sizeof(*dump_hdr));
3232 if (!dump_hdr || (dump_hdr->vse_class != QCA_MEMDUMP_VSE_CLASS) ||
3233 (dump_hdr->msg_type != QCA_MEMDUMP_MSG_TYPE))
3234 goto out;
3235
3236 is_dump = true;
3237 out:
3238 consume_skb(clone);
3239 return is_dump;
3240 }
3241
btusb_recv_acl_qca(struct hci_dev * hdev,struct sk_buff * skb)3242 static int btusb_recv_acl_qca(struct hci_dev *hdev, struct sk_buff *skb)
3243 {
3244 if (acl_pkt_is_dump_qca(hdev, skb))
3245 return handle_dump_pkt_qca(hdev, skb);
3246 return hci_recv_frame(hdev, skb);
3247 }
3248
btusb_recv_evt_qca(struct hci_dev * hdev,struct sk_buff * skb)3249 static int btusb_recv_evt_qca(struct hci_dev *hdev, struct sk_buff *skb)
3250 {
3251 if (evt_pkt_is_dump_qca(hdev, skb))
3252 return handle_dump_pkt_qca(hdev, skb);
3253 return hci_recv_frame(hdev, skb);
3254 }
3255
3256
3257 #define QCA_DFU_PACKET_LEN 4096
3258
3259 #define QCA_GET_TARGET_VERSION 0x09
3260 #define QCA_CHECK_STATUS 0x05
3261 #define QCA_DFU_DOWNLOAD 0x01
3262
3263 #define QCA_SYSCFG_UPDATED 0x40
3264 #define QCA_PATCH_UPDATED 0x80
3265 #define QCA_DFU_TIMEOUT 3000
3266 #define QCA_FLAG_MULTI_NVM 0x80
3267 #define QCA_BT_RESET_WAIT_MS 100
3268
3269 #define WCN6855_2_0_RAM_VERSION_GF 0x400c1200
3270 #define WCN6855_2_1_RAM_VERSION_GF 0x400c1211
3271
3272 struct qca_version {
3273 __le32 rom_version;
3274 __le32 patch_version;
3275 __le32 ram_version;
3276 __u8 chip_id;
3277 __u8 platform_id;
3278 __le16 flag;
3279 __u8 reserved[4];
3280 } __packed;
3281
3282 struct qca_rampatch_version {
3283 __le16 rom_version_high;
3284 __le16 rom_version_low;
3285 __le16 patch_version;
3286 } __packed;
3287
3288 struct qca_device_info {
3289 u32 rom_version;
3290 u8 rampatch_hdr; /* length of header in rampatch */
3291 u8 nvm_hdr; /* length of header in NVM */
3292 u8 ver_offset; /* offset of version structure in rampatch */
3293 };
3294
3295 struct qca_custom_firmware {
3296 u32 rom_version;
3297 u16 board_id;
3298 const char *subdirectory;
3299 };
3300
3301 static const struct qca_device_info qca_devices_table[] = {
3302 { 0x00000100, 20, 4, 8 }, /* Rome 1.0 */
3303 { 0x00000101, 20, 4, 8 }, /* Rome 1.1 */
3304 { 0x00000200, 28, 4, 16 }, /* Rome 2.0 */
3305 { 0x00000201, 28, 4, 16 }, /* Rome 2.1 */
3306 { 0x00000300, 28, 4, 16 }, /* Rome 3.0 */
3307 { 0x00000302, 28, 4, 16 }, /* Rome 3.2 */
3308 { 0x00130100, 40, 4, 16 }, /* WCN6855 1.0 */
3309 { 0x00130200, 40, 4, 16 }, /* WCN6855 2.0 */
3310 { 0x00130201, 40, 4, 16 }, /* WCN6855 2.1 */
3311 { 0x00190200, 40, 4, 16 }, /* WCN785x 2.0 */
3312 };
3313
3314 static const struct qca_custom_firmware qca_custom_btfws[] = {
3315 { 0x00130201, 0x030A, "QCA2066" },
3316 { 0x00130201, 0x030B, "QCA2066" },
3317 { },
3318 };
3319
qca_extract_board_id(const struct qca_version * ver)3320 static u16 qca_extract_board_id(const struct qca_version *ver)
3321 {
3322 u16 flag = le16_to_cpu(ver->flag);
3323 u16 board_id = 0;
3324
3325 if (((flag >> 8) & 0xff) == QCA_FLAG_MULTI_NVM) {
3326 /* The board_id should be split into two bytes
3327 * The 1st byte is chip ID, and the 2nd byte is platform ID
3328 * For example, board ID 0x010A, 0x01 is platform ID. 0x0A is chip ID
3329 * we have several platforms, and platform IDs are continuously added
3330 * Platform ID:
3331 * 0x00 is for Mobile
3332 * 0x01 is for X86
3333 * 0x02 is for Automotive
3334 * 0x03 is for Consumer electronic
3335 */
3336 board_id = (ver->chip_id << 8) + ver->platform_id;
3337 }
3338
3339 /* Take 0xffff as invalid board ID */
3340 if (board_id == 0xffff)
3341 board_id = 0;
3342
3343 return board_id;
3344 }
3345
qca_get_fw_subdirectory(const struct qca_version * ver)3346 static const char *qca_get_fw_subdirectory(const struct qca_version *ver)
3347 {
3348 const struct qca_custom_firmware *ptr;
3349 u32 rom_ver;
3350 u16 board_id;
3351
3352 rom_ver = le32_to_cpu(ver->rom_version);
3353 board_id = qca_extract_board_id(ver);
3354 if (!board_id)
3355 return NULL;
3356
3357 for (ptr = qca_custom_btfws; ptr->rom_version; ptr++) {
3358 if (ptr->rom_version == rom_ver &&
3359 ptr->board_id == board_id)
3360 return ptr->subdirectory;
3361 }
3362
3363 return NULL;
3364 }
3365
btusb_qca_send_vendor_req(struct usb_device * udev,u8 request,void * data,u16 size)3366 static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request,
3367 void *data, u16 size)
3368 {
3369 int pipe, err;
3370 u8 *buf;
3371
3372 buf = kmalloc(size, GFP_KERNEL);
3373 if (!buf)
3374 return -ENOMEM;
3375
3376 /* Found some of USB hosts have IOT issues with ours so that we should
3377 * not wait until HCI layer is ready.
3378 */
3379 pipe = usb_rcvctrlpipe(udev, 0);
3380 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
3381 0, 0, buf, size, USB_CTRL_GET_TIMEOUT);
3382 if (err < 0) {
3383 dev_err(&udev->dev, "Failed to access otp area (%d)", err);
3384 goto done;
3385 }
3386
3387 memcpy(data, buf, size);
3388
3389 done:
3390 kfree(buf);
3391
3392 return err;
3393 }
3394
btusb_setup_qca_download_fw(struct hci_dev * hdev,const struct firmware * firmware,size_t hdr_size)3395 static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
3396 const struct firmware *firmware,
3397 size_t hdr_size)
3398 {
3399 struct btusb_data *btdata = hci_get_drvdata(hdev);
3400 struct usb_device *udev = btdata->udev;
3401 size_t count, size, sent = 0;
3402 int pipe, len, err;
3403 u8 *buf;
3404
3405 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
3406 if (!buf)
3407 return -ENOMEM;
3408
3409 count = firmware->size;
3410
3411 size = min_t(size_t, count, hdr_size);
3412 memcpy(buf, firmware->data, size);
3413
3414 /* USB patches should go down to controller through USB path
3415 * because binary format fits to go down through USB channel.
3416 * USB control path is for patching headers and USB bulk is for
3417 * patch body.
3418 */
3419 pipe = usb_sndctrlpipe(udev, 0);
3420 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
3421 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
3422 if (err < 0) {
3423 bt_dev_err(hdev, "Failed to send headers (%d)", err);
3424 goto done;
3425 }
3426
3427 sent += size;
3428 count -= size;
3429
3430 /* ep2 need time to switch from function acl to function dfu,
3431 * so we add 20ms delay here.
3432 */
3433 msleep(20);
3434
3435 while (count) {
3436 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
3437
3438 memcpy(buf, firmware->data + sent, size);
3439
3440 pipe = usb_sndbulkpipe(udev, 0x02);
3441 err = usb_bulk_msg(udev, pipe, buf, size, &len,
3442 QCA_DFU_TIMEOUT);
3443 if (err < 0) {
3444 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)",
3445 sent, firmware->size, err);
3446 break;
3447 }
3448
3449 if (size != len) {
3450 bt_dev_err(hdev, "Failed to get bulk buffer");
3451 err = -EILSEQ;
3452 break;
3453 }
3454
3455 sent += size;
3456 count -= size;
3457 }
3458
3459 done:
3460 kfree(buf);
3461 return err;
3462 }
3463
btusb_setup_qca_load_rampatch(struct hci_dev * hdev,struct qca_version * ver,const struct qca_device_info * info)3464 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
3465 struct qca_version *ver,
3466 const struct qca_device_info *info)
3467 {
3468 struct qca_rampatch_version *rver;
3469 const struct firmware *fw;
3470 const char *fw_subdir;
3471 u32 ver_rom, ver_patch, rver_rom;
3472 u16 rver_rom_low, rver_rom_high, rver_patch;
3473 char fwname[80];
3474 int err;
3475
3476 ver_rom = le32_to_cpu(ver->rom_version);
3477 ver_patch = le32_to_cpu(ver->patch_version);
3478
3479 fw_subdir = qca_get_fw_subdirectory(ver);
3480 if (fw_subdir)
3481 snprintf(fwname, sizeof(fwname), "qca/%s/rampatch_usb_%08x.bin",
3482 fw_subdir, ver_rom);
3483 else
3484 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin",
3485 ver_rom);
3486
3487 err = request_firmware(&fw, fwname, &hdev->dev);
3488 if (err) {
3489 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)",
3490 fwname, err);
3491 return err;
3492 }
3493
3494 bt_dev_info(hdev, "using rampatch file: %s", fwname);
3495
3496 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
3497 rver_rom_low = le16_to_cpu(rver->rom_version_low);
3498 rver_patch = le16_to_cpu(rver->patch_version);
3499
3500 if (ver_rom & ~0xffffU) {
3501 rver_rom_high = le16_to_cpu(rver->rom_version_high);
3502 rver_rom = rver_rom_high << 16 | rver_rom_low;
3503 } else {
3504 rver_rom = rver_rom_low;
3505 }
3506
3507 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, "
3508 "firmware rome 0x%x build 0x%x",
3509 rver_rom, rver_patch, ver_rom, ver_patch);
3510
3511 if (rver_rom != ver_rom || rver_patch <= ver_patch) {
3512 bt_dev_err(hdev, "rampatch file version did not match with firmware");
3513 err = -EINVAL;
3514 goto done;
3515 }
3516
3517 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
3518
3519 done:
3520 release_firmware(fw);
3521
3522 return err;
3523 }
3524
btusb_generate_qca_nvm_name(char * fwname,size_t max_size,const struct qca_version * ver)3525 static void btusb_generate_qca_nvm_name(char *fwname, size_t max_size,
3526 const struct qca_version *ver)
3527 {
3528 u32 rom_version = le32_to_cpu(ver->rom_version);
3529 const char *variant, *fw_subdir;
3530 int len;
3531 u16 board_id;
3532
3533 fw_subdir = qca_get_fw_subdirectory(ver);
3534 board_id = qca_extract_board_id(ver);
3535
3536 switch (le32_to_cpu(ver->ram_version)) {
3537 case WCN6855_2_0_RAM_VERSION_GF:
3538 case WCN6855_2_1_RAM_VERSION_GF:
3539 variant = "_gf";
3540 break;
3541 default:
3542 variant = NULL;
3543 break;
3544 }
3545
3546 if (fw_subdir)
3547 len = snprintf(fwname, max_size, "qca/%s/nvm_usb_%08x",
3548 fw_subdir, rom_version);
3549 else
3550 len = snprintf(fwname, max_size, "qca/nvm_usb_%08x",
3551 rom_version);
3552 if (variant)
3553 len += snprintf(fwname + len, max_size - len, "%s", variant);
3554 if (board_id)
3555 len += snprintf(fwname + len, max_size - len, "_%04x", board_id);
3556 len += snprintf(fwname + len, max_size - len, ".bin");
3557 }
3558
btusb_setup_qca_load_nvm(struct hci_dev * hdev,struct qca_version * ver,const struct qca_device_info * info)3559 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
3560 struct qca_version *ver,
3561 const struct qca_device_info *info)
3562 {
3563 const struct firmware *fw;
3564 char fwname[80];
3565 int err;
3566
3567 btusb_generate_qca_nvm_name(fwname, sizeof(fwname), ver);
3568
3569 err = request_firmware(&fw, fwname, &hdev->dev);
3570 if (err) {
3571 bt_dev_err(hdev, "failed to request NVM file: %s (%d)",
3572 fwname, err);
3573 return err;
3574 }
3575
3576 bt_dev_info(hdev, "using NVM file: %s", fwname);
3577
3578 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
3579
3580 release_firmware(fw);
3581
3582 return err;
3583 }
3584
3585 /* identify the ROM version and check whether patches are needed */
btusb_qca_need_patch(struct usb_device * udev)3586 static bool btusb_qca_need_patch(struct usb_device *udev)
3587 {
3588 struct qca_version ver;
3589
3590 if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3591 sizeof(ver)) < 0)
3592 return false;
3593 /* only low ROM versions need patches */
3594 return !(le32_to_cpu(ver.rom_version) & ~0xffffU);
3595 }
3596
btusb_setup_qca(struct hci_dev * hdev)3597 static int btusb_setup_qca(struct hci_dev *hdev)
3598 {
3599 struct btusb_data *btdata = hci_get_drvdata(hdev);
3600 struct usb_device *udev = btdata->udev;
3601 const struct qca_device_info *info = NULL;
3602 struct qca_version ver;
3603 u32 ver_rom;
3604 u8 status;
3605 int i, err;
3606
3607 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3608 sizeof(ver));
3609 if (err < 0)
3610 return err;
3611
3612 ver_rom = le32_to_cpu(ver.rom_version);
3613
3614 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
3615 if (ver_rom == qca_devices_table[i].rom_version)
3616 info = &qca_devices_table[i];
3617 }
3618 if (!info) {
3619 /* If the rom_version is not matched in the qca_devices_table
3620 * and the high ROM version is not zero, we assume this chip no
3621 * need to load the rampatch and nvm.
3622 */
3623 if (ver_rom & ~0xffffU)
3624 return 0;
3625
3626 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom);
3627 return -ENODEV;
3628 }
3629
3630 err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status,
3631 sizeof(status));
3632 if (err < 0)
3633 return err;
3634
3635 if (!(status & QCA_PATCH_UPDATED)) {
3636 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
3637 if (err < 0)
3638 return err;
3639 }
3640
3641 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3642 sizeof(ver));
3643 if (err < 0)
3644 return err;
3645
3646 btdata->qca_dump.fw_version = le32_to_cpu(ver.patch_version);
3647 btdata->qca_dump.controller_id = le32_to_cpu(ver.rom_version);
3648
3649 if (!(status & QCA_SYSCFG_UPDATED)) {
3650 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
3651 if (err < 0)
3652 return err;
3653
3654 /* WCN6855 2.1 and later will reset to apply firmware downloaded here, so
3655 * wait ~100ms for reset Done then go ahead, otherwise, it maybe
3656 * cause potential enable failure.
3657 */
3658 if (info->rom_version >= 0x00130201)
3659 msleep(QCA_BT_RESET_WAIT_MS);
3660 }
3661
3662 /* Mark HCI_OP_ENHANCED_SETUP_SYNC_CONN as broken as it doesn't seem to
3663 * work with the likes of HSP/HFP mSBC.
3664 */
3665 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN);
3666
3667 return 0;
3668 }
3669
__set_diag_interface(struct hci_dev * hdev)3670 static inline int __set_diag_interface(struct hci_dev *hdev)
3671 {
3672 struct btusb_data *data = hci_get_drvdata(hdev);
3673 struct usb_interface *intf = data->diag;
3674 int i;
3675
3676 if (!data->diag)
3677 return -ENODEV;
3678
3679 data->diag_tx_ep = NULL;
3680 data->diag_rx_ep = NULL;
3681
3682 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
3683 struct usb_endpoint_descriptor *ep_desc;
3684
3685 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
3686
3687 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
3688 data->diag_tx_ep = ep_desc;
3689 continue;
3690 }
3691
3692 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
3693 data->diag_rx_ep = ep_desc;
3694 continue;
3695 }
3696 }
3697
3698 if (!data->diag_tx_ep || !data->diag_rx_ep) {
3699 bt_dev_err(hdev, "invalid diagnostic descriptors");
3700 return -ENODEV;
3701 }
3702
3703 return 0;
3704 }
3705
alloc_diag_urb(struct hci_dev * hdev,bool enable)3706 static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable)
3707 {
3708 struct btusb_data *data = hci_get_drvdata(hdev);
3709 struct sk_buff *skb;
3710 struct urb *urb;
3711 unsigned int pipe;
3712
3713 if (!data->diag_tx_ep)
3714 return ERR_PTR(-ENODEV);
3715
3716 urb = usb_alloc_urb(0, GFP_KERNEL);
3717 if (!urb)
3718 return ERR_PTR(-ENOMEM);
3719
3720 skb = bt_skb_alloc(2, GFP_KERNEL);
3721 if (!skb) {
3722 usb_free_urb(urb);
3723 return ERR_PTR(-ENOMEM);
3724 }
3725
3726 skb_put_u8(skb, 0xf0);
3727 skb_put_u8(skb, enable);
3728
3729 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress);
3730
3731 usb_fill_bulk_urb(urb, data->udev, pipe,
3732 skb->data, skb->len, btusb_tx_complete, skb);
3733
3734 skb->dev = (void *)hdev;
3735
3736 return urb;
3737 }
3738
btusb_bcm_set_diag(struct hci_dev * hdev,bool enable)3739 static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable)
3740 {
3741 struct btusb_data *data = hci_get_drvdata(hdev);
3742 struct urb *urb;
3743
3744 if (!data->diag)
3745 return -ENODEV;
3746
3747 if (!test_bit(HCI_RUNNING, &hdev->flags))
3748 return -ENETDOWN;
3749
3750 urb = alloc_diag_urb(hdev, enable);
3751 if (IS_ERR(urb))
3752 return PTR_ERR(urb);
3753
3754 return submit_or_queue_tx_urb(hdev, urb);
3755 }
3756
3757 #ifdef CONFIG_PM
btusb_oob_wake_handler(int irq,void * priv)3758 static irqreturn_t btusb_oob_wake_handler(int irq, void *priv)
3759 {
3760 struct btusb_data *data = priv;
3761
3762 pm_wakeup_event(&data->udev->dev, 0);
3763 pm_system_wakeup();
3764
3765 /* Disable only if not already disabled (keep it balanced) */
3766 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
3767 disable_irq_nosync(irq);
3768 disable_irq_wake(irq);
3769 }
3770 return IRQ_HANDLED;
3771 }
3772
3773 static const struct of_device_id btusb_match_table[] = {
3774 { .compatible = "usb1286,204e" },
3775 { .compatible = "usbcf3,e300" }, /* QCA6174A */
3776 { .compatible = "usb4ca,301a" }, /* QCA6174A (Lite-On) */
3777 { }
3778 };
3779 MODULE_DEVICE_TABLE(of, btusb_match_table);
3780
3781 /* Use an oob wakeup pin? */
btusb_config_oob_wake(struct hci_dev * hdev)3782 static int btusb_config_oob_wake(struct hci_dev *hdev)
3783 {
3784 struct btusb_data *data = hci_get_drvdata(hdev);
3785 struct device *dev = &data->udev->dev;
3786 int irq, ret;
3787
3788 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
3789
3790 if (!of_match_device(btusb_match_table, dev))
3791 return 0;
3792
3793 /* Move on if no IRQ specified */
3794 irq = of_irq_get_byname(dev->of_node, "wakeup");
3795 if (irq <= 0) {
3796 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__);
3797 return 0;
3798 }
3799
3800 irq_set_status_flags(irq, IRQ_NOAUTOEN);
3801 ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler,
3802 0, "OOB Wake-on-BT", data);
3803 if (ret) {
3804 bt_dev_err(hdev, "%s: IRQ request failed", __func__);
3805 return ret;
3806 }
3807
3808 ret = device_init_wakeup(dev, true);
3809 if (ret) {
3810 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__);
3811 return ret;
3812 }
3813
3814 data->oob_wake_irq = irq;
3815 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq);
3816 return 0;
3817 }
3818 #endif
3819
btusb_check_needs_reset_resume(struct usb_interface * intf)3820 static void btusb_check_needs_reset_resume(struct usb_interface *intf)
3821 {
3822 if (dmi_check_system(btusb_needs_reset_resume_table))
3823 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
3824 }
3825
btusb_wakeup(struct hci_dev * hdev)3826 static bool btusb_wakeup(struct hci_dev *hdev)
3827 {
3828 struct btusb_data *data = hci_get_drvdata(hdev);
3829
3830 return device_may_wakeup(&data->udev->dev);
3831 }
3832
btusb_shutdown_qca(struct hci_dev * hdev)3833 static int btusb_shutdown_qca(struct hci_dev *hdev)
3834 {
3835 struct sk_buff *skb;
3836
3837 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
3838 if (IS_ERR(skb)) {
3839 bt_dev_err(hdev, "HCI reset during shutdown failed");
3840 return PTR_ERR(skb);
3841 }
3842 kfree_skb(skb);
3843
3844 return 0;
3845 }
3846
force_poll_sync_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)3847 static ssize_t force_poll_sync_read(struct file *file, char __user *user_buf,
3848 size_t count, loff_t *ppos)
3849 {
3850 struct btusb_data *data = file->private_data;
3851 char buf[3];
3852
3853 buf[0] = data->poll_sync ? 'Y' : 'N';
3854 buf[1] = '\n';
3855 buf[2] = '\0';
3856 return simple_read_from_buffer(user_buf, count, ppos, buf, 2);
3857 }
3858
force_poll_sync_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)3859 static ssize_t force_poll_sync_write(struct file *file,
3860 const char __user *user_buf,
3861 size_t count, loff_t *ppos)
3862 {
3863 struct btusb_data *data = file->private_data;
3864 bool enable;
3865 int err;
3866
3867 err = kstrtobool_from_user(user_buf, count, &enable);
3868 if (err)
3869 return err;
3870
3871 /* Only allow changes while the adapter is down */
3872 if (test_bit(HCI_UP, &data->hdev->flags))
3873 return -EPERM;
3874
3875 if (data->poll_sync == enable)
3876 return -EALREADY;
3877
3878 data->poll_sync = enable;
3879
3880 return count;
3881 }
3882
3883 static const struct file_operations force_poll_sync_fops = {
3884 .owner = THIS_MODULE,
3885 .open = simple_open,
3886 .read = force_poll_sync_read,
3887 .write = force_poll_sync_write,
3888 .llseek = default_llseek,
3889 };
3890
3891 #define BTUSB_HCI_DRV_OP_SUPPORTED_ALTSETTINGS \
3892 hci_opcode_pack(HCI_DRV_OGF_DRIVER_SPECIFIC, 0x0000)
3893 #define BTUSB_HCI_DRV_SUPPORTED_ALTSETTINGS_SIZE 0
3894 struct btusb_hci_drv_rp_supported_altsettings {
3895 __u8 num;
3896 __u8 altsettings[];
3897 } __packed;
3898
3899 #define BTUSB_HCI_DRV_OP_SWITCH_ALTSETTING \
3900 hci_opcode_pack(HCI_DRV_OGF_DRIVER_SPECIFIC, 0x0001)
3901 #define BTUSB_HCI_DRV_SWITCH_ALTSETTING_SIZE 1
3902 struct btusb_hci_drv_cmd_switch_altsetting {
3903 __u8 altsetting;
3904 } __packed;
3905
3906 static const struct {
3907 u16 opcode;
3908 const char *desc;
3909 } btusb_hci_drv_supported_commands[] = {
3910 /* Common commands */
3911 { HCI_DRV_OP_READ_INFO, "Read Info" },
3912
3913 /* Driver specific commands */
3914 { BTUSB_HCI_DRV_OP_SUPPORTED_ALTSETTINGS, "Supported Altsettings" },
3915 { BTUSB_HCI_DRV_OP_SWITCH_ALTSETTING, "Switch Altsetting" },
3916 };
btusb_hci_drv_read_info(struct hci_dev * hdev,void * data,u16 data_len)3917 static int btusb_hci_drv_read_info(struct hci_dev *hdev, void *data,
3918 u16 data_len)
3919 {
3920 struct hci_drv_rp_read_info *rp;
3921 size_t rp_size;
3922 int err, i;
3923 u16 opcode, num_supported_commands =
3924 ARRAY_SIZE(btusb_hci_drv_supported_commands);
3925
3926 rp_size = sizeof(*rp) + num_supported_commands * 2;
3927
3928 rp = kmalloc(rp_size, GFP_KERNEL);
3929 if (!rp)
3930 return -ENOMEM;
3931
3932 strscpy_pad(rp->driver_name, btusb_driver.name);
3933
3934 rp->num_supported_commands = cpu_to_le16(num_supported_commands);
3935 for (i = 0; i < num_supported_commands; i++) {
3936 opcode = btusb_hci_drv_supported_commands[i].opcode;
3937 bt_dev_info(hdev,
3938 "Supported HCI Drv command (0x%02x|0x%04x): %s",
3939 hci_opcode_ogf(opcode),
3940 hci_opcode_ocf(opcode),
3941 btusb_hci_drv_supported_commands[i].desc);
3942 rp->supported_commands[i] = cpu_to_le16(opcode);
3943 }
3944
3945 err = hci_drv_cmd_complete(hdev, HCI_DRV_OP_READ_INFO,
3946 HCI_DRV_STATUS_SUCCESS, rp, rp_size);
3947
3948 kfree(rp);
3949 return err;
3950 }
3951
btusb_hci_drv_supported_altsettings(struct hci_dev * hdev,void * data,u16 data_len)3952 static int btusb_hci_drv_supported_altsettings(struct hci_dev *hdev, void *data,
3953 u16 data_len)
3954 {
3955 struct btusb_data *drvdata = hci_get_drvdata(hdev);
3956 struct btusb_hci_drv_rp_supported_altsettings *rp;
3957 size_t rp_size;
3958 int err;
3959 u8 i;
3960
3961 /* There are at most 7 alt (0 - 6) */
3962 rp = kmalloc(sizeof(*rp) + 7, GFP_KERNEL);
3963 if (!rp)
3964 return -ENOMEM;
3965
3966 rp->num = 0;
3967 if (!drvdata->isoc)
3968 goto done;
3969
3970 for (i = 0; i <= 6; i++) {
3971 if (btusb_find_altsetting(drvdata, i))
3972 rp->altsettings[rp->num++] = i;
3973 }
3974
3975 done:
3976 rp_size = sizeof(*rp) + rp->num;
3977
3978 err = hci_drv_cmd_complete(hdev, BTUSB_HCI_DRV_OP_SUPPORTED_ALTSETTINGS,
3979 HCI_DRV_STATUS_SUCCESS, rp, rp_size);
3980 kfree(rp);
3981 return err;
3982 }
3983
btusb_hci_drv_switch_altsetting(struct hci_dev * hdev,void * data,u16 data_len)3984 static int btusb_hci_drv_switch_altsetting(struct hci_dev *hdev, void *data,
3985 u16 data_len)
3986 {
3987 struct btusb_hci_drv_cmd_switch_altsetting *cmd = data;
3988 u8 status;
3989
3990 if (cmd->altsetting > 6) {
3991 status = HCI_DRV_STATUS_INVALID_PARAMETERS;
3992 } else {
3993 if (btusb_switch_alt_setting(hdev, cmd->altsetting))
3994 status = HCI_DRV_STATUS_UNSPECIFIED_ERROR;
3995 else
3996 status = HCI_DRV_STATUS_SUCCESS;
3997 }
3998
3999 return hci_drv_cmd_status(hdev, BTUSB_HCI_DRV_OP_SWITCH_ALTSETTING,
4000 status);
4001 }
4002
4003 static const struct hci_drv_handler btusb_hci_drv_common_handlers[] = {
4004 { btusb_hci_drv_read_info, HCI_DRV_READ_INFO_SIZE },
4005 };
4006
4007 static const struct hci_drv_handler btusb_hci_drv_specific_handlers[] = {
4008 { btusb_hci_drv_supported_altsettings,
4009 BTUSB_HCI_DRV_SUPPORTED_ALTSETTINGS_SIZE },
4010 { btusb_hci_drv_switch_altsetting,
4011 BTUSB_HCI_DRV_SWITCH_ALTSETTING_SIZE },
4012 };
4013
4014 static struct hci_drv btusb_hci_drv = {
4015 .common_handler_count = ARRAY_SIZE(btusb_hci_drv_common_handlers),
4016 .common_handlers = btusb_hci_drv_common_handlers,
4017 .specific_handler_count = ARRAY_SIZE(btusb_hci_drv_specific_handlers),
4018 .specific_handlers = btusb_hci_drv_specific_handlers,
4019 };
4020
btusb_probe(struct usb_interface * intf,const struct usb_device_id * id)4021 static int btusb_probe(struct usb_interface *intf,
4022 const struct usb_device_id *id)
4023 {
4024 struct usb_endpoint_descriptor *ep_desc;
4025 struct gpio_desc *reset_gpio;
4026 struct btusb_data *data;
4027 struct hci_dev *hdev;
4028 unsigned ifnum_base;
4029 int i, err, priv_size;
4030
4031 BT_DBG("intf %p id %p", intf, id);
4032
4033 if ((id->driver_info & BTUSB_IFNUM_2) &&
4034 (intf->cur_altsetting->desc.bInterfaceNumber != 0) &&
4035 (intf->cur_altsetting->desc.bInterfaceNumber != 2))
4036 return -ENODEV;
4037
4038 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber;
4039
4040 if (!id->driver_info) {
4041 const struct usb_device_id *match;
4042
4043 match = usb_match_id(intf, quirks_table);
4044 if (match)
4045 id = match;
4046 }
4047
4048 if (id->driver_info == BTUSB_IGNORE)
4049 return -ENODEV;
4050
4051 if (id->driver_info & BTUSB_ATH3012) {
4052 struct usb_device *udev = interface_to_usbdev(intf);
4053
4054 /* Old firmware would otherwise let ath3k driver load
4055 * patch and sysconfig files
4056 */
4057 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 &&
4058 !btusb_qca_need_patch(udev))
4059 return -ENODEV;
4060 }
4061
4062 data = kzalloc_obj(*data);
4063 if (!data)
4064 return -ENOMEM;
4065
4066 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
4067 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
4068
4069 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
4070 data->intr_ep = ep_desc;
4071 continue;
4072 }
4073
4074 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
4075 data->bulk_tx_ep = ep_desc;
4076 continue;
4077 }
4078
4079 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
4080 data->bulk_rx_ep = ep_desc;
4081 continue;
4082 }
4083 }
4084
4085 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) {
4086 kfree(data);
4087 return -ENODEV;
4088 }
4089
4090 if (id->driver_info & BTUSB_AMP) {
4091 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
4092 data->cmdreq = 0x2b;
4093 } else {
4094 data->cmdreq_type = USB_TYPE_CLASS;
4095 data->cmdreq = 0x00;
4096 }
4097
4098 data->udev = interface_to_usbdev(intf);
4099 data->intf = intf;
4100
4101 INIT_WORK(&data->work, btusb_work);
4102 INIT_WORK(&data->waker, btusb_waker);
4103 INIT_DELAYED_WORK(&data->rx_work, btusb_rx_work);
4104
4105 skb_queue_head_init(&data->acl_q);
4106
4107 init_usb_anchor(&data->deferred);
4108 init_usb_anchor(&data->tx_anchor);
4109 spin_lock_init(&data->txlock);
4110
4111 init_usb_anchor(&data->intr_anchor);
4112 init_usb_anchor(&data->bulk_anchor);
4113 init_usb_anchor(&data->isoc_anchor);
4114 init_usb_anchor(&data->diag_anchor);
4115 init_usb_anchor(&data->ctrl_anchor);
4116 spin_lock_init(&data->rxlock);
4117
4118 priv_size = 0;
4119
4120 data->recv_event = hci_recv_frame;
4121 data->recv_bulk = btusb_recv_bulk;
4122
4123 if (id->driver_info & BTUSB_INTEL_COMBINED) {
4124 /* Allocate extra space for Intel device */
4125 priv_size += sizeof(struct btintel_data);
4126
4127 /* Override the rx handlers */
4128 data->recv_event = btintel_recv_event;
4129 data->recv_bulk = btusb_recv_bulk_intel;
4130 } else if (id->driver_info & BTUSB_REALTEK) {
4131 /* Allocate extra space for Realtek device */
4132 priv_size += sizeof(struct btrealtek_data);
4133
4134 data->recv_event = btusb_recv_event_realtek;
4135 } else if (id->driver_info & BTUSB_MEDIATEK) {
4136 /* Allocate extra space for Mediatek device */
4137 priv_size += sizeof(struct btmtk_data);
4138 }
4139
4140 data->recv_acl = hci_recv_frame;
4141
4142 hdev = hci_alloc_dev_priv(priv_size);
4143 if (!hdev) {
4144 kfree(data);
4145 return -ENOMEM;
4146 }
4147
4148 hdev->bus = HCI_USB;
4149 hci_set_drvdata(hdev, data);
4150
4151 data->hdev = hdev;
4152
4153 SET_HCIDEV_DEV(hdev, &intf->dev);
4154
4155 reset_gpio = gpiod_get_optional(&data->udev->dev, "reset",
4156 GPIOD_OUT_LOW);
4157 if (IS_ERR(reset_gpio)) {
4158 err = PTR_ERR(reset_gpio);
4159 goto out_free_dev;
4160 } else if (reset_gpio) {
4161 data->reset_gpio = reset_gpio;
4162 }
4163
4164 hdev->open = btusb_open;
4165 hdev->close = btusb_close;
4166 hdev->flush = btusb_flush;
4167 hdev->send = btusb_send_frame;
4168 hdev->notify = btusb_notify;
4169 hdev->wakeup = btusb_wakeup;
4170 hdev->hci_drv = &btusb_hci_drv;
4171
4172 #ifdef CONFIG_PM
4173 err = btusb_config_oob_wake(hdev);
4174 if (err)
4175 goto out_free_dev;
4176
4177 /* Marvell devices may need a specific chip configuration */
4178 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) {
4179 err = marvell_config_oob_wake(hdev);
4180 if (err)
4181 goto out_free_dev;
4182 }
4183 #endif
4184 if (id->driver_info & BTUSB_CW6622)
4185 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_STORED_LINK_KEY);
4186
4187 if (id->driver_info & BTUSB_BCM2045)
4188 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_STORED_LINK_KEY);
4189
4190 if (id->driver_info & BTUSB_BCM92035)
4191 hdev->setup = btusb_setup_bcm92035;
4192
4193 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
4194 (id->driver_info & BTUSB_BCM_PATCHRAM)) {
4195 hdev->manufacturer = 15;
4196 hdev->setup = btbcm_setup_patchram;
4197 hdev->set_diag = btusb_bcm_set_diag;
4198 hdev->set_bdaddr = btbcm_set_bdaddr;
4199
4200 /* Broadcom LM_DIAG Interface numbers are hardcoded */
4201 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
4202 }
4203
4204 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
4205 (id->driver_info & BTUSB_BCM_APPLE)) {
4206 hdev->manufacturer = 15;
4207 hdev->setup = btbcm_setup_apple;
4208 hdev->set_diag = btusb_bcm_set_diag;
4209
4210 /* Broadcom LM_DIAG Interface numbers are hardcoded */
4211 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
4212 }
4213
4214 /* Combined Intel Device setup to support multiple setup routine */
4215 if (id->driver_info & BTUSB_INTEL_COMBINED) {
4216 err = btintel_configure_setup(hdev, btusb_driver.name);
4217 if (err)
4218 goto out_free_dev;
4219
4220 /* Transport specific configuration */
4221 hdev->send = btusb_send_frame_intel;
4222 hdev->reset = btusb_intel_reset;
4223
4224 if (id->driver_info & BTUSB_INTEL_NO_WBS_SUPPORT)
4225 btintel_set_flag(hdev, INTEL_ROM_LEGACY_NO_WBS_SUPPORT);
4226
4227 if (id->driver_info & BTUSB_INTEL_BROKEN_INITIAL_NCMD)
4228 btintel_set_flag(hdev, INTEL_BROKEN_INITIAL_NCMD);
4229
4230 if (id->driver_info & BTUSB_INTEL_BROKEN_SHUTDOWN_LED)
4231 btintel_set_flag(hdev, INTEL_BROKEN_SHUTDOWN_LED);
4232 }
4233
4234 if (id->driver_info & BTUSB_MARVELL)
4235 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
4236
4237 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_MTK) &&
4238 (id->driver_info & BTUSB_MEDIATEK)) {
4239 hdev->setup = btusb_mtk_setup;
4240 hdev->shutdown = btusb_mtk_shutdown;
4241 hdev->manufacturer = 70;
4242 hdev->reset = btmtk_reset_sync;
4243 hdev->set_bdaddr = btmtk_set_bdaddr;
4244 hdev->send = btusb_send_frame_mtk;
4245 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN);
4246 hci_set_quirk(hdev, HCI_QUIRK_NON_PERSISTENT_SETUP);
4247 data->recv_acl = btmtk_usb_recv_acl;
4248 data->suspend = btmtk_usb_suspend;
4249 data->resume = btmtk_usb_resume;
4250 data->disconnect = btusb_mtk_disconnect;
4251 }
4252
4253 if (id->driver_info & BTUSB_SWAVE) {
4254 hci_set_quirk(hdev, HCI_QUIRK_FIXUP_INQUIRY_MODE);
4255 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_LOCAL_COMMANDS);
4256 }
4257
4258 if (id->driver_info & BTUSB_INTEL_BOOT) {
4259 hdev->manufacturer = 2;
4260 hci_set_quirk(hdev, HCI_QUIRK_RAW_DEVICE);
4261 }
4262
4263 if (id->driver_info & BTUSB_ATH3012) {
4264 data->setup_on_usb = btusb_setup_qca;
4265 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
4266 hci_set_quirk(hdev, HCI_QUIRK_SIMULTANEOUS_DISCOVERY);
4267 hci_set_quirk(hdev, HCI_QUIRK_STRICT_DUPLICATE_FILTER);
4268 }
4269
4270 if (id->driver_info & BTUSB_QCA_ROME) {
4271 data->setup_on_usb = btusb_setup_qca;
4272 hdev->shutdown = btusb_shutdown_qca;
4273 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
4274 hdev->reset = btusb_qca_reset;
4275 hci_set_quirk(hdev, HCI_QUIRK_SIMULTANEOUS_DISCOVERY);
4276 btusb_check_needs_reset_resume(intf);
4277 }
4278
4279 if (id->driver_info & BTUSB_QCA_WCN6855) {
4280 data->qca_dump.id_vendor = id->idVendor;
4281 data->qca_dump.id_product = id->idProduct;
4282 data->recv_event = btusb_recv_evt_qca;
4283 data->recv_acl = btusb_recv_acl_qca;
4284 hci_devcd_register(hdev, btusb_coredump_qca, btusb_dump_hdr_qca, NULL);
4285 data->setup_on_usb = btusb_setup_qca;
4286 hdev->classify_pkt_type = btusb_classify_qca_pkt_type;
4287 hdev->shutdown = btusb_shutdown_qca;
4288 hdev->set_bdaddr = btusb_set_bdaddr_wcn6855;
4289 hdev->reset = btusb_qca_reset;
4290 hci_set_quirk(hdev, HCI_QUIRK_SIMULTANEOUS_DISCOVERY);
4291 hci_set_msft_opcode(hdev, 0xFD70);
4292 }
4293
4294 if (id->driver_info & BTUSB_AMP) {
4295 /* AMP controllers do not support SCO packets */
4296 data->isoc = NULL;
4297 } else {
4298 /* Interface orders are hardcoded in the specification */
4299 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1);
4300 data->isoc_ifnum = ifnum_base + 1;
4301 }
4302
4303 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_RTL) &&
4304 (id->driver_info & BTUSB_REALTEK)) {
4305 btrtl_set_driver_name(hdev, btusb_driver.name);
4306 hdev->setup = btusb_setup_realtek;
4307 hdev->shutdown = btrtl_shutdown_realtek;
4308 hdev->reset = btusb_rtl_reset;
4309 hdev->hw_error = btusb_rtl_hw_error;
4310
4311 /* Realtek devices need to set remote wakeup on auto-suspend */
4312 set_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags);
4313 set_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags);
4314 }
4315
4316 if (id->driver_info & BTUSB_ACTIONS_SEMI) {
4317 /* Support is advertised, but not implemented */
4318 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_ERR_DATA_REPORTING);
4319 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER);
4320 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_SET_RPA_TIMEOUT);
4321 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_EXT_SCAN);
4322 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_READ_ENC_KEY_SIZE);
4323 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_EXT_CREATE_CONN);
4324 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_WRITE_AUTH_PAYLOAD_TIMEOUT);
4325 }
4326
4327 if (!reset)
4328 hci_set_quirk(hdev, HCI_QUIRK_RESET_ON_CLOSE);
4329
4330 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
4331 if (!disable_scofix)
4332 hci_set_quirk(hdev, HCI_QUIRK_FIXUP_BUFFER_SIZE);
4333 }
4334
4335 if (id->driver_info & BTUSB_BROKEN_ISOC)
4336 data->isoc = NULL;
4337
4338 if (id->driver_info & BTUSB_WIDEBAND_SPEECH)
4339 hci_set_quirk(hdev, HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED);
4340
4341 if (id->driver_info & BTUSB_INVALID_LE_STATES)
4342 hci_set_quirk(hdev, HCI_QUIRK_BROKEN_LE_STATES);
4343
4344 if (id->driver_info & BTUSB_DIGIANSWER) {
4345 data->cmdreq_type = USB_TYPE_VENDOR;
4346 hci_set_quirk(hdev, HCI_QUIRK_RESET_ON_CLOSE);
4347 }
4348
4349 if (id->driver_info & BTUSB_CSR) {
4350 struct usb_device *udev = data->udev;
4351 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
4352
4353 /* Old firmware would otherwise execute USB reset */
4354 if (bcdDevice < 0x117)
4355 hci_set_quirk(hdev, HCI_QUIRK_RESET_ON_CLOSE);
4356
4357 /* This must be set first in case we disable it for fakes */
4358 hci_set_quirk(hdev, HCI_QUIRK_SIMULTANEOUS_DISCOVERY);
4359
4360 /* Fake CSR devices with broken commands */
4361 if (le16_to_cpu(udev->descriptor.idVendor) == 0x0a12 &&
4362 le16_to_cpu(udev->descriptor.idProduct) == 0x0001)
4363 hdev->setup = btusb_setup_csr;
4364 }
4365
4366 if (id->driver_info & BTUSB_SNIFFER) {
4367 struct usb_device *udev = data->udev;
4368
4369 /* New sniffer firmware has crippled HCI interface */
4370 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
4371 hci_set_quirk(hdev, HCI_QUIRK_RAW_DEVICE);
4372 }
4373
4374 if (id->driver_info & BTUSB_INTEL_BOOT) {
4375 /* A bug in the bootloader causes that interrupt interface is
4376 * only enabled after receiving SetInterface(0, AltSetting=0).
4377 */
4378 err = usb_set_interface(data->udev, 0, 0);
4379 if (err < 0) {
4380 BT_ERR("failed to set interface 0, alt 0 %d", err);
4381 goto out_free_dev;
4382 }
4383 }
4384
4385 if (data->isoc) {
4386 err = usb_driver_claim_interface(&btusb_driver,
4387 data->isoc, data);
4388 if (err < 0)
4389 goto out_free_dev;
4390 }
4391
4392 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && data->diag) {
4393 if (!usb_driver_claim_interface(&btusb_driver,
4394 data->diag, data))
4395 __set_diag_interface(hdev);
4396 else
4397 data->diag = NULL;
4398 }
4399
4400 if (enable_autosuspend)
4401 usb_enable_autosuspend(data->udev);
4402
4403 data->poll_sync = enable_poll_sync;
4404
4405 err = hci_register_dev(hdev);
4406 if (err < 0)
4407 goto out_free_dev;
4408
4409 usb_set_intfdata(intf, data);
4410
4411 debugfs_create_file("force_poll_sync", 0644, hdev->debugfs, data,
4412 &force_poll_sync_fops);
4413
4414 return 0;
4415
4416 out_free_dev:
4417 if (data->reset_gpio)
4418 gpiod_put(data->reset_gpio);
4419 hci_free_dev(hdev);
4420 kfree(data);
4421 return err;
4422 }
4423
btusb_disconnect(struct usb_interface * intf)4424 static void btusb_disconnect(struct usb_interface *intf)
4425 {
4426 struct btusb_data *data = usb_get_intfdata(intf);
4427 struct hci_dev *hdev;
4428
4429 BT_DBG("intf %p", intf);
4430
4431 if (!data)
4432 return;
4433
4434 hdev = data->hdev;
4435 usb_set_intfdata(data->intf, NULL);
4436
4437 if (data->isoc)
4438 usb_set_intfdata(data->isoc, NULL);
4439
4440 if (data->diag)
4441 usb_set_intfdata(data->diag, NULL);
4442
4443 if (data->disconnect)
4444 data->disconnect(hdev);
4445
4446 hci_unregister_dev(hdev);
4447
4448 if (data->oob_wake_irq)
4449 device_init_wakeup(&data->udev->dev, false);
4450 if (data->reset_gpio)
4451 gpiod_put(data->reset_gpio);
4452
4453 if (intf == data->intf) {
4454 if (data->isoc)
4455 usb_driver_release_interface(&btusb_driver, data->isoc);
4456 if (data->diag)
4457 usb_driver_release_interface(&btusb_driver, data->diag);
4458 } else if (intf == data->isoc) {
4459 if (data->diag)
4460 usb_driver_release_interface(&btusb_driver, data->diag);
4461 usb_driver_release_interface(&btusb_driver, data->intf);
4462 } else if (intf == data->diag) {
4463 if (data->isoc)
4464 usb_driver_release_interface(&btusb_driver, data->isoc);
4465 usb_driver_release_interface(&btusb_driver, data->intf);
4466 }
4467
4468 hci_free_dev(hdev);
4469 kfree(data);
4470 }
4471
btusb_suspend(struct usb_interface * intf,pm_message_t message)4472 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
4473 {
4474 struct btusb_data *data = usb_get_intfdata(intf);
4475
4476 BT_DBG("intf %p", intf);
4477
4478 /* Don't auto-suspend if there are connections or discovery in
4479 * progress; external suspend calls shall never fail.
4480 */
4481 if (PMSG_IS_AUTO(message) &&
4482 (hci_conn_count(data->hdev) || hci_discovery_active(data->hdev)))
4483 return -EBUSY;
4484
4485 if (data->suspend_count++)
4486 return 0;
4487
4488 spin_lock_irq(&data->txlock);
4489 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
4490 set_bit(BTUSB_SUSPENDING, &data->flags);
4491 spin_unlock_irq(&data->txlock);
4492 } else {
4493 spin_unlock_irq(&data->txlock);
4494 data->suspend_count--;
4495 return -EBUSY;
4496 }
4497
4498 cancel_work_sync(&data->work);
4499
4500 if (data->suspend)
4501 data->suspend(data->hdev);
4502
4503 btusb_stop_traffic(data);
4504 usb_kill_anchored_urbs(&data->tx_anchor);
4505
4506 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) {
4507 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
4508 enable_irq_wake(data->oob_wake_irq);
4509 enable_irq(data->oob_wake_irq);
4510 }
4511
4512 /* For global suspend, Realtek devices lose the loaded fw
4513 * in them. But for autosuspend, firmware should remain.
4514 * Actually, it depends on whether the usb host sends
4515 * set feature (enable wakeup) or not.
4516 */
4517 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) {
4518 if (PMSG_IS_AUTO(message) &&
4519 device_can_wakeup(&data->udev->dev))
4520 data->udev->do_remote_wakeup = 1;
4521 else if (!PMSG_IS_AUTO(message) &&
4522 !device_may_wakeup(&data->udev->dev)) {
4523 data->udev->do_remote_wakeup = 0;
4524 data->udev->reset_resume = 1;
4525 }
4526 }
4527
4528 return 0;
4529 }
4530
play_deferred(struct btusb_data * data)4531 static void play_deferred(struct btusb_data *data)
4532 {
4533 struct urb *urb;
4534 int err;
4535
4536 while ((urb = usb_get_from_anchor(&data->deferred))) {
4537 usb_anchor_urb(urb, &data->tx_anchor);
4538
4539 err = usb_submit_urb(urb, GFP_ATOMIC);
4540 if (err < 0) {
4541 if (err != -EPERM && err != -ENODEV)
4542 BT_ERR("%s urb %p submission failed (%d)",
4543 data->hdev->name, urb, -err);
4544 kfree(urb->setup_packet);
4545 usb_unanchor_urb(urb);
4546 usb_free_urb(urb);
4547 break;
4548 }
4549
4550 data->tx_in_flight++;
4551 usb_free_urb(urb);
4552 }
4553
4554 /* Cleanup the rest deferred urbs. */
4555 while ((urb = usb_get_from_anchor(&data->deferred))) {
4556 kfree(urb->setup_packet);
4557 usb_free_urb(urb);
4558 }
4559 }
4560
btusb_resume(struct usb_interface * intf)4561 static int btusb_resume(struct usb_interface *intf)
4562 {
4563 struct btusb_data *data = usb_get_intfdata(intf);
4564 struct hci_dev *hdev = data->hdev;
4565 int err = 0;
4566
4567 BT_DBG("intf %p", intf);
4568
4569 if (--data->suspend_count)
4570 return 0;
4571
4572 /* Disable only if not already disabled (keep it balanced) */
4573 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
4574 disable_irq(data->oob_wake_irq);
4575 disable_irq_wake(data->oob_wake_irq);
4576 }
4577
4578 if (!test_bit(HCI_RUNNING, &hdev->flags))
4579 goto done;
4580
4581 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
4582 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
4583 if (err < 0) {
4584 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
4585 goto failed;
4586 }
4587 }
4588
4589 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
4590 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
4591 if (err < 0) {
4592 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
4593 goto failed;
4594 }
4595
4596 btusb_submit_bulk_urb(hdev, GFP_NOIO);
4597 }
4598
4599 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
4600 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
4601 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
4602 else
4603 btusb_submit_isoc_urb(hdev, GFP_NOIO);
4604 }
4605
4606 if (data->resume)
4607 data->resume(hdev);
4608
4609 spin_lock_irq(&data->txlock);
4610 play_deferred(data);
4611 clear_bit(BTUSB_SUSPENDING, &data->flags);
4612 spin_unlock_irq(&data->txlock);
4613 schedule_work(&data->work);
4614
4615 return 0;
4616
4617 failed:
4618 usb_scuttle_anchored_urbs(&data->deferred);
4619 done:
4620 spin_lock_irq(&data->txlock);
4621 clear_bit(BTUSB_SUSPENDING, &data->flags);
4622 spin_unlock_irq(&data->txlock);
4623
4624 return err;
4625 }
4626
4627 #ifdef CONFIG_DEV_COREDUMP
btusb_coredump(struct device * dev)4628 static void btusb_coredump(struct device *dev)
4629 {
4630 struct btusb_data *data = dev_get_drvdata(dev);
4631 struct hci_dev *hdev = data->hdev;
4632
4633 if (hdev->dump.coredump)
4634 hdev->dump.coredump(hdev);
4635 }
4636 #endif
4637
4638 static struct usb_driver btusb_driver = {
4639 .name = "btusb",
4640 .probe = btusb_probe,
4641 .disconnect = btusb_disconnect,
4642 .suspend = pm_ptr(btusb_suspend),
4643 .resume = pm_ptr(btusb_resume),
4644 .id_table = btusb_table,
4645 .supports_autosuspend = 1,
4646 .disable_hub_initiated_lpm = 1,
4647
4648 #ifdef CONFIG_DEV_COREDUMP
4649 .driver = {
4650 .coredump = btusb_coredump,
4651 },
4652 #endif
4653 };
4654
4655 module_usb_driver(btusb_driver);
4656
4657 module_param(disable_scofix, bool, 0644);
4658 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
4659
4660 module_param(force_scofix, bool, 0644);
4661 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
4662
4663 module_param(enable_autosuspend, bool, 0644);
4664 MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default");
4665
4666 module_param(reset, bool, 0644);
4667 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
4668
4669 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
4670 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
4671 MODULE_VERSION(VERSION);
4672 MODULE_LICENSE("GPL");
4673