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 <asm/unaligned.h>
21
22 #include <net/bluetooth/bluetooth.h>
23 #include <net/bluetooth/hci_core.h>
24
25 #include "btintel.h"
26 #include "btbcm.h"
27 #include "btrtl.h"
28 #include "btmtk.h"
29
30 #define VERSION "0.8"
31
32 static bool disable_scofix;
33 static bool force_scofix;
34 static bool enable_autosuspend = IS_ENABLED(CONFIG_BT_HCIBTUSB_AUTOSUSPEND);
35 static bool enable_poll_sync = IS_ENABLED(CONFIG_BT_HCIBTUSB_POLL_SYNC);
36 static bool reset = true;
37
38 static struct usb_driver btusb_driver;
39
40 #define BTUSB_IGNORE BIT(0)
41 #define BTUSB_DIGIANSWER BIT(1)
42 #define BTUSB_CSR BIT(2)
43 #define BTUSB_SNIFFER BIT(3)
44 #define BTUSB_BCM92035 BIT(4)
45 #define BTUSB_BROKEN_ISOC BIT(5)
46 #define BTUSB_WRONG_SCO_MTU BIT(6)
47 #define BTUSB_ATH3012 BIT(7)
48 #define BTUSB_INTEL_COMBINED BIT(8)
49 #define BTUSB_INTEL_BOOT BIT(9)
50 #define BTUSB_BCM_PATCHRAM BIT(10)
51 #define BTUSB_MARVELL BIT(11)
52 #define BTUSB_SWAVE BIT(12)
53 #define BTUSB_AMP BIT(13)
54 #define BTUSB_QCA_ROME BIT(14)
55 #define BTUSB_BCM_APPLE BIT(15)
56 #define BTUSB_REALTEK BIT(16)
57 #define BTUSB_BCM2045 BIT(17)
58 #define BTUSB_IFNUM_2 BIT(18)
59 #define BTUSB_CW6622 BIT(19)
60 #define BTUSB_MEDIATEK BIT(20)
61 #define BTUSB_WIDEBAND_SPEECH BIT(21)
62 #define BTUSB_VALID_LE_STATES BIT(22)
63 #define BTUSB_QCA_WCN6855 BIT(23)
64 #define BTUSB_INTEL_BROKEN_SHUTDOWN_LED BIT(24)
65 #define BTUSB_INTEL_BROKEN_INITIAL_NCMD BIT(25)
66 #define BTUSB_INTEL_NO_WBS_SUPPORT BIT(26)
67 #define BTUSB_ACTIONS_SEMI BIT(27)
68
69 static const struct usb_device_id btusb_table[] = {
70 /* Generic Bluetooth USB device */
71 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
72
73 /* Generic Bluetooth AMP device */
74 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP },
75
76 /* Generic Bluetooth USB interface */
77 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) },
78
79 /* Apple-specific (Broadcom) devices */
80 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01),
81 .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 },
82
83 /* MediaTek MT76x0E */
84 { USB_DEVICE(0x0e8d, 0x763f) },
85
86 /* Broadcom SoftSailing reporting vendor specific */
87 { USB_DEVICE(0x0a5c, 0x21e1) },
88
89 /* Apple MacBookPro 7,1 */
90 { USB_DEVICE(0x05ac, 0x8213) },
91
92 /* Apple iMac11,1 */
93 { USB_DEVICE(0x05ac, 0x8215) },
94
95 /* Apple MacBookPro6,2 */
96 { USB_DEVICE(0x05ac, 0x8218) },
97
98 /* Apple MacBookAir3,1, MacBookAir3,2 */
99 { USB_DEVICE(0x05ac, 0x821b) },
100
101 /* Apple MacBookAir4,1 */
102 { USB_DEVICE(0x05ac, 0x821f) },
103
104 /* Apple MacBookPro8,2 */
105 { USB_DEVICE(0x05ac, 0x821a) },
106
107 /* Apple MacMini5,1 */
108 { USB_DEVICE(0x05ac, 0x8281) },
109
110 /* AVM BlueFRITZ! USB v2.0 */
111 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE },
112
113 /* Bluetooth Ultraport Module from IBM */
114 { USB_DEVICE(0x04bf, 0x030a) },
115
116 /* ALPS Modules with non-standard id */
117 { USB_DEVICE(0x044e, 0x3001) },
118 { USB_DEVICE(0x044e, 0x3002) },
119
120 /* Ericsson with non-standard id */
121 { USB_DEVICE(0x0bdb, 0x1002) },
122
123 /* Canyon CN-BTU1 with HID interfaces */
124 { USB_DEVICE(0x0c10, 0x0000) },
125
126 /* Broadcom BCM20702B0 (Dynex/Insignia) */
127 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM },
128
129 /* Broadcom BCM43142A0 (Foxconn/Lenovo) */
130 { USB_VENDOR_AND_INTERFACE_INFO(0x105b, 0xff, 0x01, 0x01),
131 .driver_info = BTUSB_BCM_PATCHRAM },
132
133 /* Broadcom BCM920703 (HTC Vive) */
134 { USB_VENDOR_AND_INTERFACE_INFO(0x0bb4, 0xff, 0x01, 0x01),
135 .driver_info = BTUSB_BCM_PATCHRAM },
136
137 /* Foxconn - Hon Hai */
138 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01),
139 .driver_info = BTUSB_BCM_PATCHRAM },
140
141 /* Lite-On Technology - Broadcom based */
142 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01),
143 .driver_info = BTUSB_BCM_PATCHRAM },
144
145 /* Broadcom devices with vendor specific id */
146 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01),
147 .driver_info = BTUSB_BCM_PATCHRAM },
148
149 /* ASUSTek Computer - Broadcom based */
150 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01),
151 .driver_info = BTUSB_BCM_PATCHRAM },
152
153 /* Belkin F8065bf - Broadcom based */
154 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01),
155 .driver_info = BTUSB_BCM_PATCHRAM },
156
157 /* IMC Networks - Broadcom based */
158 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01),
159 .driver_info = BTUSB_BCM_PATCHRAM },
160
161 /* Dell Computer - Broadcom based */
162 { USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01),
163 .driver_info = BTUSB_BCM_PATCHRAM },
164
165 /* Toshiba Corp - Broadcom based */
166 { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01),
167 .driver_info = BTUSB_BCM_PATCHRAM },
168
169 /* Intel Bluetooth USB Bootloader (RAM module) */
170 { USB_DEVICE(0x8087, 0x0a5a),
171 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
172
173 { } /* Terminating entry */
174 };
175
176 MODULE_DEVICE_TABLE(usb, btusb_table);
177
178 static const struct usb_device_id quirks_table[] = {
179 /* CSR BlueCore devices */
180 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
181
182 /* Broadcom BCM2033 without firmware */
183 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
184
185 /* Broadcom BCM2045 devices */
186 { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 },
187
188 /* Atheros 3011 with sflash firmware */
189 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
190 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
191 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE },
192 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
193 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
194 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
195 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
196
197 /* Atheros AR9285 Malbec with sflash firmware */
198 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
199
200 /* Atheros 3012 with sflash firmware */
201 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
202 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
203 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
204 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
205 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
206 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
207 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
208 { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 },
209 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
210 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
211 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
212 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
213 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
214 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
215 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
216 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
217 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
218 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
219 { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 },
220 { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 },
221 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
222 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
223 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
224 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
225 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
226 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
227 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
228 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
229 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
230 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
231 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
232 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
233 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
234 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 },
235 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
236 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
237 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
238 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
239 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
240 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
241 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
242 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 },
243 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
244 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
245 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
246 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
247 { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 },
248 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
249 { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 },
250 { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 },
251
252 /* Atheros AR5BBU12 with sflash firmware */
253 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
254
255 /* Atheros AR5BBU12 with sflash firmware */
256 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
257 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
258
259 /* QCA ROME chipset */
260 { USB_DEVICE(0x0cf3, 0x535b), .driver_info = BTUSB_QCA_ROME |
261 BTUSB_WIDEBAND_SPEECH },
262 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME |
263 BTUSB_WIDEBAND_SPEECH },
264 { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME |
265 BTUSB_WIDEBAND_SPEECH },
266 { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME |
267 BTUSB_WIDEBAND_SPEECH },
268 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME |
269 BTUSB_WIDEBAND_SPEECH },
270 { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME |
271 BTUSB_WIDEBAND_SPEECH },
272 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME |
273 BTUSB_WIDEBAND_SPEECH },
274 { USB_DEVICE(0x0cf3, 0xe500), .driver_info = BTUSB_QCA_ROME |
275 BTUSB_WIDEBAND_SPEECH },
276 { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME |
277 BTUSB_WIDEBAND_SPEECH },
278 { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME |
279 BTUSB_WIDEBAND_SPEECH },
280 { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME |
281 BTUSB_WIDEBAND_SPEECH },
282 { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME |
283 BTUSB_WIDEBAND_SPEECH },
284 { USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME |
285 BTUSB_WIDEBAND_SPEECH },
286 { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME |
287 BTUSB_WIDEBAND_SPEECH },
288 { USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME |
289 BTUSB_WIDEBAND_SPEECH },
290 { USB_DEVICE(0x04ca, 0x3021), .driver_info = BTUSB_QCA_ROME |
291 BTUSB_WIDEBAND_SPEECH },
292 { USB_DEVICE(0x13d3, 0x3491), .driver_info = BTUSB_QCA_ROME |
293 BTUSB_WIDEBAND_SPEECH },
294 { USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME |
295 BTUSB_WIDEBAND_SPEECH },
296 { USB_DEVICE(0x13d3, 0x3501), .driver_info = BTUSB_QCA_ROME |
297 BTUSB_WIDEBAND_SPEECH },
298
299 /* QCA WCN6855 chipset */
300 { USB_DEVICE(0x0cf3, 0xe600), .driver_info = BTUSB_QCA_WCN6855 |
301 BTUSB_WIDEBAND_SPEECH |
302 BTUSB_VALID_LE_STATES },
303 { USB_DEVICE(0x0489, 0xe0cc), .driver_info = BTUSB_QCA_WCN6855 |
304 BTUSB_WIDEBAND_SPEECH |
305 BTUSB_VALID_LE_STATES },
306 { USB_DEVICE(0x0489, 0xe0d6), .driver_info = BTUSB_QCA_WCN6855 |
307 BTUSB_WIDEBAND_SPEECH |
308 BTUSB_VALID_LE_STATES },
309 { USB_DEVICE(0x0489, 0xe0e3), .driver_info = BTUSB_QCA_WCN6855 |
310 BTUSB_WIDEBAND_SPEECH |
311 BTUSB_VALID_LE_STATES },
312 { USB_DEVICE(0x10ab, 0x9309), .driver_info = BTUSB_QCA_WCN6855 |
313 BTUSB_WIDEBAND_SPEECH |
314 BTUSB_VALID_LE_STATES },
315 { USB_DEVICE(0x10ab, 0x9409), .driver_info = BTUSB_QCA_WCN6855 |
316 BTUSB_WIDEBAND_SPEECH |
317 BTUSB_VALID_LE_STATES },
318 { USB_DEVICE(0x0489, 0xe0d0), .driver_info = BTUSB_QCA_WCN6855 |
319 BTUSB_WIDEBAND_SPEECH |
320 BTUSB_VALID_LE_STATES },
321 { USB_DEVICE(0x10ab, 0x9108), .driver_info = BTUSB_QCA_WCN6855 |
322 BTUSB_WIDEBAND_SPEECH |
323 BTUSB_VALID_LE_STATES },
324 { USB_DEVICE(0x10ab, 0x9109), .driver_info = BTUSB_QCA_WCN6855 |
325 BTUSB_WIDEBAND_SPEECH |
326 BTUSB_VALID_LE_STATES },
327 { USB_DEVICE(0x10ab, 0x9208), .driver_info = BTUSB_QCA_WCN6855 |
328 BTUSB_WIDEBAND_SPEECH |
329 BTUSB_VALID_LE_STATES },
330 { USB_DEVICE(0x10ab, 0x9209), .driver_info = BTUSB_QCA_WCN6855 |
331 BTUSB_WIDEBAND_SPEECH |
332 BTUSB_VALID_LE_STATES },
333 { USB_DEVICE(0x10ab, 0x9308), .driver_info = BTUSB_QCA_WCN6855 |
334 BTUSB_WIDEBAND_SPEECH |
335 BTUSB_VALID_LE_STATES },
336 { USB_DEVICE(0x10ab, 0x9408), .driver_info = BTUSB_QCA_WCN6855 |
337 BTUSB_WIDEBAND_SPEECH |
338 BTUSB_VALID_LE_STATES },
339 { USB_DEVICE(0x10ab, 0x9508), .driver_info = BTUSB_QCA_WCN6855 |
340 BTUSB_WIDEBAND_SPEECH |
341 BTUSB_VALID_LE_STATES },
342 { USB_DEVICE(0x10ab, 0x9509), .driver_info = BTUSB_QCA_WCN6855 |
343 BTUSB_WIDEBAND_SPEECH |
344 BTUSB_VALID_LE_STATES },
345 { USB_DEVICE(0x10ab, 0x9608), .driver_info = BTUSB_QCA_WCN6855 |
346 BTUSB_WIDEBAND_SPEECH |
347 BTUSB_VALID_LE_STATES },
348 { USB_DEVICE(0x10ab, 0x9609), .driver_info = BTUSB_QCA_WCN6855 |
349 BTUSB_WIDEBAND_SPEECH |
350 BTUSB_VALID_LE_STATES },
351 { USB_DEVICE(0x10ab, 0x9f09), .driver_info = BTUSB_QCA_WCN6855 |
352 BTUSB_WIDEBAND_SPEECH |
353 BTUSB_VALID_LE_STATES },
354 { USB_DEVICE(0x04ca, 0x3022), .driver_info = BTUSB_QCA_WCN6855 |
355 BTUSB_WIDEBAND_SPEECH |
356 BTUSB_VALID_LE_STATES },
357 { USB_DEVICE(0x0489, 0xe0c7), .driver_info = BTUSB_QCA_WCN6855 |
358 BTUSB_WIDEBAND_SPEECH |
359 BTUSB_VALID_LE_STATES },
360 { USB_DEVICE(0x0489, 0xe0c9), .driver_info = BTUSB_QCA_WCN6855 |
361 BTUSB_WIDEBAND_SPEECH |
362 BTUSB_VALID_LE_STATES },
363 { USB_DEVICE(0x0489, 0xe0ca), .driver_info = BTUSB_QCA_WCN6855 |
364 BTUSB_WIDEBAND_SPEECH |
365 BTUSB_VALID_LE_STATES },
366 { USB_DEVICE(0x0489, 0xe0cb), .driver_info = BTUSB_QCA_WCN6855 |
367 BTUSB_WIDEBAND_SPEECH |
368 BTUSB_VALID_LE_STATES },
369 { USB_DEVICE(0x0489, 0xe0ce), .driver_info = BTUSB_QCA_WCN6855 |
370 BTUSB_WIDEBAND_SPEECH |
371 BTUSB_VALID_LE_STATES },
372 { USB_DEVICE(0x0489, 0xe0de), .driver_info = BTUSB_QCA_WCN6855 |
373 BTUSB_WIDEBAND_SPEECH |
374 BTUSB_VALID_LE_STATES },
375 { USB_DEVICE(0x0489, 0xe0df), .driver_info = BTUSB_QCA_WCN6855 |
376 BTUSB_WIDEBAND_SPEECH |
377 BTUSB_VALID_LE_STATES },
378 { USB_DEVICE(0x0489, 0xe0e1), .driver_info = BTUSB_QCA_WCN6855 |
379 BTUSB_WIDEBAND_SPEECH |
380 BTUSB_VALID_LE_STATES },
381 { USB_DEVICE(0x0489, 0xe0ea), .driver_info = BTUSB_QCA_WCN6855 |
382 BTUSB_WIDEBAND_SPEECH |
383 BTUSB_VALID_LE_STATES },
384 { USB_DEVICE(0x0489, 0xe0ec), .driver_info = BTUSB_QCA_WCN6855 |
385 BTUSB_WIDEBAND_SPEECH |
386 BTUSB_VALID_LE_STATES },
387 { USB_DEVICE(0x04ca, 0x3023), .driver_info = BTUSB_QCA_WCN6855 |
388 BTUSB_WIDEBAND_SPEECH |
389 BTUSB_VALID_LE_STATES },
390 { USB_DEVICE(0x04ca, 0x3024), .driver_info = BTUSB_QCA_WCN6855 |
391 BTUSB_WIDEBAND_SPEECH |
392 BTUSB_VALID_LE_STATES },
393 { USB_DEVICE(0x04ca, 0x3a22), .driver_info = BTUSB_QCA_WCN6855 |
394 BTUSB_WIDEBAND_SPEECH |
395 BTUSB_VALID_LE_STATES },
396 { USB_DEVICE(0x04ca, 0x3a24), .driver_info = BTUSB_QCA_WCN6855 |
397 BTUSB_WIDEBAND_SPEECH |
398 BTUSB_VALID_LE_STATES },
399 { USB_DEVICE(0x04ca, 0x3a26), .driver_info = BTUSB_QCA_WCN6855 |
400 BTUSB_WIDEBAND_SPEECH |
401 BTUSB_VALID_LE_STATES },
402 { USB_DEVICE(0x04ca, 0x3a27), .driver_info = BTUSB_QCA_WCN6855 |
403 BTUSB_WIDEBAND_SPEECH |
404 BTUSB_VALID_LE_STATES },
405
406 /* QCA WCN785x chipset */
407 { USB_DEVICE(0x0cf3, 0xe700), .driver_info = BTUSB_QCA_WCN6855 |
408 BTUSB_WIDEBAND_SPEECH |
409 BTUSB_VALID_LE_STATES },
410
411 /* Broadcom BCM2035 */
412 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
413 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
414 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
415
416 /* Broadcom BCM2045 */
417 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
418 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
419
420 /* IBM/Lenovo ThinkPad with Broadcom chip */
421 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
422 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
423
424 /* HP laptop with Broadcom chip */
425 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
426
427 /* Dell laptop with Broadcom chip */
428 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
429
430 /* Dell Wireless 370 and 410 devices */
431 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
432 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
433
434 /* Belkin F8T012 and F8T013 devices */
435 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
436 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
437
438 /* Asus WL-BTD202 device */
439 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
440
441 /* Kensington Bluetooth USB adapter */
442 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
443
444 /* RTX Telecom based adapters with buggy SCO support */
445 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
446 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
447
448 /* CONWISE Technology based adapters with buggy SCO support */
449 { USB_DEVICE(0x0e5e, 0x6622),
450 .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622},
451
452 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
453 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE },
454
455 /* Digianswer devices */
456 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
457 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
458
459 /* CSR BlueCore Bluetooth Sniffer */
460 { USB_DEVICE(0x0a12, 0x0002),
461 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
462
463 /* Frontline ComProbe Bluetooth Sniffer */
464 { USB_DEVICE(0x16d3, 0x0002),
465 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
466
467 /* Marvell Bluetooth devices */
468 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
469 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
470 { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL },
471
472 /* Intel Bluetooth devices */
473 { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_COMBINED },
474 { USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_COMBINED },
475 { USB_DEVICE(0x8087, 0x0029), .driver_info = BTUSB_INTEL_COMBINED },
476 { USB_DEVICE(0x8087, 0x0032), .driver_info = BTUSB_INTEL_COMBINED },
477 { USB_DEVICE(0x8087, 0x0033), .driver_info = BTUSB_INTEL_COMBINED },
478 { USB_DEVICE(0x8087, 0x0035), .driver_info = BTUSB_INTEL_COMBINED },
479 { USB_DEVICE(0x8087, 0x0036), .driver_info = BTUSB_INTEL_COMBINED },
480 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
481 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL_COMBINED |
482 BTUSB_INTEL_NO_WBS_SUPPORT |
483 BTUSB_INTEL_BROKEN_INITIAL_NCMD |
484 BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
485 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL_COMBINED |
486 BTUSB_INTEL_NO_WBS_SUPPORT |
487 BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
488 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_COMBINED },
489 { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL_COMBINED |
490 BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
491 { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_COMBINED },
492
493 /* Other Intel Bluetooth devices */
494 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
495 .driver_info = BTUSB_IGNORE },
496
497 /* Realtek 8821CE Bluetooth devices */
498 { USB_DEVICE(0x13d3, 0x3529), .driver_info = BTUSB_REALTEK |
499 BTUSB_WIDEBAND_SPEECH },
500
501 /* Realtek 8822CE Bluetooth devices */
502 { USB_DEVICE(0x0bda, 0xb00c), .driver_info = BTUSB_REALTEK |
503 BTUSB_WIDEBAND_SPEECH },
504 { USB_DEVICE(0x0bda, 0xc822), .driver_info = BTUSB_REALTEK |
505 BTUSB_WIDEBAND_SPEECH },
506
507 /* Realtek 8822CU Bluetooth devices */
508 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK |
509 BTUSB_WIDEBAND_SPEECH },
510
511 /* Realtek 8852AE Bluetooth devices */
512 { USB_DEVICE(0x0bda, 0x2852), .driver_info = BTUSB_REALTEK |
513 BTUSB_WIDEBAND_SPEECH },
514 { USB_DEVICE(0x0bda, 0xc852), .driver_info = BTUSB_REALTEK |
515 BTUSB_WIDEBAND_SPEECH },
516 { USB_DEVICE(0x0bda, 0x385a), .driver_info = BTUSB_REALTEK |
517 BTUSB_WIDEBAND_SPEECH },
518 { USB_DEVICE(0x0bda, 0x4852), .driver_info = BTUSB_REALTEK |
519 BTUSB_WIDEBAND_SPEECH },
520 { USB_DEVICE(0x04c5, 0x165c), .driver_info = BTUSB_REALTEK |
521 BTUSB_WIDEBAND_SPEECH },
522 { USB_DEVICE(0x04ca, 0x4006), .driver_info = BTUSB_REALTEK |
523 BTUSB_WIDEBAND_SPEECH },
524 { USB_DEVICE(0x0cb8, 0xc549), .driver_info = BTUSB_REALTEK |
525 BTUSB_WIDEBAND_SPEECH },
526
527 /* Realtek 8852CE Bluetooth devices */
528 { USB_DEVICE(0x04ca, 0x4007), .driver_info = BTUSB_REALTEK |
529 BTUSB_WIDEBAND_SPEECH },
530 { USB_DEVICE(0x04c5, 0x1675), .driver_info = BTUSB_REALTEK |
531 BTUSB_WIDEBAND_SPEECH },
532 { USB_DEVICE(0x0cb8, 0xc558), .driver_info = BTUSB_REALTEK |
533 BTUSB_WIDEBAND_SPEECH },
534 { USB_DEVICE(0x13d3, 0x3587), .driver_info = BTUSB_REALTEK |
535 BTUSB_WIDEBAND_SPEECH },
536 { USB_DEVICE(0x13d3, 0x3586), .driver_info = BTUSB_REALTEK |
537 BTUSB_WIDEBAND_SPEECH },
538 { USB_DEVICE(0x13d3, 0x3592), .driver_info = BTUSB_REALTEK |
539 BTUSB_WIDEBAND_SPEECH },
540 { USB_DEVICE(0x0489, 0xe122), .driver_info = BTUSB_REALTEK |
541 BTUSB_WIDEBAND_SPEECH },
542
543 /* Realtek 8852BE Bluetooth devices */
544 { USB_DEVICE(0x0cb8, 0xc559), .driver_info = BTUSB_REALTEK |
545 BTUSB_WIDEBAND_SPEECH },
546 { USB_DEVICE(0x0bda, 0x4853), .driver_info = BTUSB_REALTEK |
547 BTUSB_WIDEBAND_SPEECH },
548 { USB_DEVICE(0x0bda, 0x887b), .driver_info = BTUSB_REALTEK |
549 BTUSB_WIDEBAND_SPEECH },
550 { USB_DEVICE(0x0bda, 0xb85b), .driver_info = BTUSB_REALTEK |
551 BTUSB_WIDEBAND_SPEECH },
552 { USB_DEVICE(0x13d3, 0x3570), .driver_info = BTUSB_REALTEK |
553 BTUSB_WIDEBAND_SPEECH },
554 { USB_DEVICE(0x13d3, 0x3571), .driver_info = BTUSB_REALTEK |
555 BTUSB_WIDEBAND_SPEECH },
556 { USB_DEVICE(0x13d3, 0x3591), .driver_info = BTUSB_REALTEK |
557 BTUSB_WIDEBAND_SPEECH },
558 { USB_DEVICE(0x0489, 0xe123), .driver_info = BTUSB_REALTEK |
559 BTUSB_WIDEBAND_SPEECH },
560 { USB_DEVICE(0x0489, 0xe125), .driver_info = BTUSB_REALTEK |
561 BTUSB_WIDEBAND_SPEECH },
562
563 /* Realtek Bluetooth devices */
564 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
565 .driver_info = BTUSB_REALTEK },
566
567 /* MediaTek Bluetooth devices */
568 { USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01),
569 .driver_info = BTUSB_MEDIATEK |
570 BTUSB_WIDEBAND_SPEECH |
571 BTUSB_VALID_LE_STATES },
572
573 /* Additional MediaTek MT7615E Bluetooth devices */
574 { USB_DEVICE(0x13d3, 0x3560), .driver_info = BTUSB_MEDIATEK},
575
576 /* Additional MediaTek MT7663 Bluetooth devices */
577 { USB_DEVICE(0x043e, 0x310c), .driver_info = BTUSB_MEDIATEK |
578 BTUSB_WIDEBAND_SPEECH |
579 BTUSB_VALID_LE_STATES },
580 { USB_DEVICE(0x04ca, 0x3801), .driver_info = BTUSB_MEDIATEK |
581 BTUSB_WIDEBAND_SPEECH |
582 BTUSB_VALID_LE_STATES },
583
584 /* Additional MediaTek MT7668 Bluetooth devices */
585 { USB_DEVICE(0x043e, 0x3109), .driver_info = BTUSB_MEDIATEK |
586 BTUSB_WIDEBAND_SPEECH |
587 BTUSB_VALID_LE_STATES },
588
589 /* Additional MediaTek MT7921 Bluetooth devices */
590 { USB_DEVICE(0x0489, 0xe0c8), .driver_info = BTUSB_MEDIATEK |
591 BTUSB_WIDEBAND_SPEECH |
592 BTUSB_VALID_LE_STATES },
593 { USB_DEVICE(0x0489, 0xe0e0), .driver_info = BTUSB_MEDIATEK |
594 BTUSB_WIDEBAND_SPEECH |
595 BTUSB_VALID_LE_STATES },
596 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK |
597 BTUSB_WIDEBAND_SPEECH |
598 BTUSB_VALID_LE_STATES },
599 { USB_DEVICE(0x04ca, 0x3802), .driver_info = BTUSB_MEDIATEK |
600 BTUSB_WIDEBAND_SPEECH |
601 BTUSB_VALID_LE_STATES },
602 { USB_DEVICE(0x13d3, 0x3563), .driver_info = BTUSB_MEDIATEK |
603 BTUSB_WIDEBAND_SPEECH |
604 BTUSB_VALID_LE_STATES },
605 { USB_DEVICE(0x13d3, 0x3564), .driver_info = BTUSB_MEDIATEK |
606 BTUSB_WIDEBAND_SPEECH |
607 BTUSB_VALID_LE_STATES },
608 { USB_DEVICE(0x13d3, 0x3567), .driver_info = BTUSB_MEDIATEK |
609 BTUSB_WIDEBAND_SPEECH |
610 BTUSB_VALID_LE_STATES },
611 { USB_DEVICE(0x13d3, 0x3578), .driver_info = BTUSB_MEDIATEK |
612 BTUSB_WIDEBAND_SPEECH |
613 BTUSB_VALID_LE_STATES },
614 { USB_DEVICE(0x13d3, 0x3583), .driver_info = BTUSB_MEDIATEK |
615 BTUSB_WIDEBAND_SPEECH |
616 BTUSB_VALID_LE_STATES },
617 { USB_DEVICE(0x0489, 0xe0cd), .driver_info = BTUSB_MEDIATEK |
618 BTUSB_WIDEBAND_SPEECH |
619 BTUSB_VALID_LE_STATES },
620 { USB_DEVICE(0x0e8d, 0x0608), .driver_info = BTUSB_MEDIATEK |
621 BTUSB_WIDEBAND_SPEECH |
622 BTUSB_VALID_LE_STATES },
623 { USB_DEVICE(0x13d3, 0x3606), .driver_info = BTUSB_MEDIATEK |
624 BTUSB_WIDEBAND_SPEECH |
625 BTUSB_VALID_LE_STATES },
626
627 /* MediaTek MT7922A Bluetooth devices */
628 { USB_DEVICE(0x0489, 0xe0d8), .driver_info = BTUSB_MEDIATEK |
629 BTUSB_WIDEBAND_SPEECH |
630 BTUSB_VALID_LE_STATES },
631 { USB_DEVICE(0x0489, 0xe0d9), .driver_info = BTUSB_MEDIATEK |
632 BTUSB_WIDEBAND_SPEECH |
633 BTUSB_VALID_LE_STATES },
634 { USB_DEVICE(0x0489, 0xe0f5), .driver_info = BTUSB_MEDIATEK |
635 BTUSB_WIDEBAND_SPEECH |
636 BTUSB_VALID_LE_STATES },
637 { USB_DEVICE(0x13d3, 0x3568), .driver_info = BTUSB_MEDIATEK |
638 BTUSB_WIDEBAND_SPEECH |
639 BTUSB_VALID_LE_STATES },
640 { USB_DEVICE(0x0489, 0xe0e2), .driver_info = BTUSB_MEDIATEK |
641 BTUSB_WIDEBAND_SPEECH |
642 BTUSB_VALID_LE_STATES },
643 { USB_DEVICE(0x0489, 0xe0e4), .driver_info = BTUSB_MEDIATEK |
644 BTUSB_WIDEBAND_SPEECH |
645 BTUSB_VALID_LE_STATES },
646 { USB_DEVICE(0x0489, 0xe0f1), .driver_info = BTUSB_MEDIATEK |
647 BTUSB_WIDEBAND_SPEECH |
648 BTUSB_VALID_LE_STATES },
649 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK |
650 BTUSB_WIDEBAND_SPEECH |
651 BTUSB_VALID_LE_STATES },
652 { USB_DEVICE(0x0489, 0xe0f5), .driver_info = BTUSB_MEDIATEK |
653 BTUSB_WIDEBAND_SPEECH |
654 BTUSB_VALID_LE_STATES },
655 { USB_DEVICE(0x0489, 0xe0f6), .driver_info = BTUSB_MEDIATEK |
656 BTUSB_WIDEBAND_SPEECH |
657 BTUSB_VALID_LE_STATES },
658 { USB_DEVICE(0x0489, 0xe102), .driver_info = BTUSB_MEDIATEK |
659 BTUSB_WIDEBAND_SPEECH |
660 BTUSB_VALID_LE_STATES },
661 { USB_DEVICE(0x04ca, 0x3804), .driver_info = BTUSB_MEDIATEK |
662 BTUSB_WIDEBAND_SPEECH |
663 BTUSB_VALID_LE_STATES },
664 { USB_DEVICE(0x35f5, 0x7922), .driver_info = BTUSB_MEDIATEK |
665 BTUSB_WIDEBAND_SPEECH |
666 BTUSB_VALID_LE_STATES },
667 { USB_DEVICE(0x13d3, 0x3614), .driver_info = BTUSB_MEDIATEK |
668 BTUSB_WIDEBAND_SPEECH |
669 BTUSB_VALID_LE_STATES },
670 { USB_DEVICE(0x13d3, 0x3615), .driver_info = BTUSB_MEDIATEK |
671 BTUSB_WIDEBAND_SPEECH |
672 BTUSB_VALID_LE_STATES },
673 { USB_DEVICE(0x04ca, 0x38e4), .driver_info = BTUSB_MEDIATEK |
674 BTUSB_WIDEBAND_SPEECH |
675 BTUSB_VALID_LE_STATES },
676 { USB_DEVICE(0x13d3, 0x3605), .driver_info = BTUSB_MEDIATEK |
677 BTUSB_WIDEBAND_SPEECH |
678 BTUSB_VALID_LE_STATES },
679 { USB_DEVICE(0x13d3, 0x3607), .driver_info = BTUSB_MEDIATEK |
680 BTUSB_WIDEBAND_SPEECH |
681 BTUSB_VALID_LE_STATES },
682
683 /* Additional MediaTek MT7925 Bluetooth devices */
684 { USB_DEVICE(0x0489, 0xe111), .driver_info = BTUSB_MEDIATEK |
685 BTUSB_WIDEBAND_SPEECH },
686 { USB_DEVICE(0x0489, 0xe113), .driver_info = BTUSB_MEDIATEK |
687 BTUSB_WIDEBAND_SPEECH |
688 BTUSB_VALID_LE_STATES },
689 { USB_DEVICE(0x13d3, 0x3602), .driver_info = BTUSB_MEDIATEK |
690 BTUSB_WIDEBAND_SPEECH |
691 BTUSB_VALID_LE_STATES },
692 { USB_DEVICE(0x13d3, 0x3603), .driver_info = BTUSB_MEDIATEK |
693 BTUSB_WIDEBAND_SPEECH |
694 BTUSB_VALID_LE_STATES },
695
696 /* Additional Realtek 8723AE Bluetooth devices */
697 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
698 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
699
700 /* Additional Realtek 8723BE Bluetooth devices */
701 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
702 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
703 { USB_DEVICE(0x04f2, 0xb49f), .driver_info = BTUSB_REALTEK },
704 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
705 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
706 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
707 { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK },
708
709 /* Additional Realtek 8723BU Bluetooth devices */
710 { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK },
711
712 /* Additional Realtek 8723DE Bluetooth devices */
713 { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK },
714 { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK },
715
716 /* Additional Realtek 8761BUV Bluetooth devices */
717 { USB_DEVICE(0x2357, 0x0604), .driver_info = BTUSB_REALTEK |
718 BTUSB_WIDEBAND_SPEECH },
719 { USB_DEVICE(0x0b05, 0x190e), .driver_info = BTUSB_REALTEK |
720 BTUSB_WIDEBAND_SPEECH },
721 { USB_DEVICE(0x2550, 0x8761), .driver_info = BTUSB_REALTEK |
722 BTUSB_WIDEBAND_SPEECH },
723 { USB_DEVICE(0x0bda, 0x8771), .driver_info = BTUSB_REALTEK |
724 BTUSB_WIDEBAND_SPEECH },
725 { USB_DEVICE(0x6655, 0x8771), .driver_info = BTUSB_REALTEK |
726 BTUSB_WIDEBAND_SPEECH },
727 { USB_DEVICE(0x7392, 0xc611), .driver_info = BTUSB_REALTEK |
728 BTUSB_WIDEBAND_SPEECH },
729 { USB_DEVICE(0x2b89, 0x8761), .driver_info = BTUSB_REALTEK |
730 BTUSB_WIDEBAND_SPEECH },
731
732 /* Additional Realtek 8821AE Bluetooth devices */
733 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
734 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
735 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
736 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
737 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
738
739 /* Additional Realtek 8822BE Bluetooth devices */
740 { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK },
741 { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK },
742
743 /* Additional Realtek 8822CE Bluetooth devices */
744 { USB_DEVICE(0x04ca, 0x4005), .driver_info = BTUSB_REALTEK |
745 BTUSB_WIDEBAND_SPEECH },
746 { USB_DEVICE(0x04c5, 0x161f), .driver_info = BTUSB_REALTEK |
747 BTUSB_WIDEBAND_SPEECH },
748 { USB_DEVICE(0x0b05, 0x18ef), .driver_info = BTUSB_REALTEK |
749 BTUSB_WIDEBAND_SPEECH },
750 { USB_DEVICE(0x13d3, 0x3548), .driver_info = BTUSB_REALTEK |
751 BTUSB_WIDEBAND_SPEECH },
752 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK |
753 BTUSB_WIDEBAND_SPEECH },
754 { USB_DEVICE(0x13d3, 0x3553), .driver_info = BTUSB_REALTEK |
755 BTUSB_WIDEBAND_SPEECH },
756 { USB_DEVICE(0x13d3, 0x3555), .driver_info = BTUSB_REALTEK |
757 BTUSB_WIDEBAND_SPEECH },
758 { USB_DEVICE(0x2ff8, 0x3051), .driver_info = BTUSB_REALTEK |
759 BTUSB_WIDEBAND_SPEECH },
760 { USB_DEVICE(0x1358, 0xc123), .driver_info = BTUSB_REALTEK |
761 BTUSB_WIDEBAND_SPEECH },
762 { USB_DEVICE(0x0bda, 0xc123), .driver_info = BTUSB_REALTEK |
763 BTUSB_WIDEBAND_SPEECH },
764 { USB_DEVICE(0x0cb5, 0xc547), .driver_info = BTUSB_REALTEK |
765 BTUSB_WIDEBAND_SPEECH },
766
767 /* Actions Semiconductor ATS2851 based devices */
768 { USB_DEVICE(0x10d7, 0xb012), .driver_info = BTUSB_ACTIONS_SEMI },
769
770 /* Silicon Wave based devices */
771 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE },
772
773 { } /* Terminating entry */
774 };
775
776 /* The Bluetooth USB module build into some devices needs to be reset on resume,
777 * this is a problem with the platform (likely shutting off all power) not with
778 * the module itself. So we use a DMI list to match known broken platforms.
779 */
780 static const struct dmi_system_id btusb_needs_reset_resume_table[] = {
781 {
782 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */
783 .matches = {
784 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
785 DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"),
786 },
787 },
788 {
789 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */
790 .matches = {
791 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
792 DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"),
793 },
794 },
795 {
796 /* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */
797 .matches = {
798 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
799 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"),
800 },
801 },
802 {}
803 };
804
805 struct qca_dump_info {
806 /* fields for dump collection */
807 u16 id_vendor;
808 u16 id_product;
809 u32 fw_version;
810 u32 controller_id;
811 u32 ram_dump_size;
812 u16 ram_dump_seqno;
813 };
814
815 #define BTUSB_MAX_ISOC_FRAMES 10
816
817 #define BTUSB_INTR_RUNNING 0
818 #define BTUSB_BULK_RUNNING 1
819 #define BTUSB_ISOC_RUNNING 2
820 #define BTUSB_SUSPENDING 3
821 #define BTUSB_DID_ISO_RESUME 4
822 #define BTUSB_BOOTLOADER 5
823 #define BTUSB_DOWNLOADING 6
824 #define BTUSB_FIRMWARE_LOADED 7
825 #define BTUSB_FIRMWARE_FAILED 8
826 #define BTUSB_BOOTING 9
827 #define BTUSB_DIAG_RUNNING 10
828 #define BTUSB_OOB_WAKE_ENABLED 11
829 #define BTUSB_HW_RESET_ACTIVE 12
830 #define BTUSB_TX_WAIT_VND_EVT 13
831 #define BTUSB_WAKEUP_AUTOSUSPEND 14
832 #define BTUSB_USE_ALT3_FOR_WBS 15
833 #define BTUSB_ALT6_CONTINUOUS_TX 16
834 #define BTUSB_HW_SSR_ACTIVE 17
835
836 struct btusb_data {
837 struct hci_dev *hdev;
838 struct usb_device *udev;
839 struct usb_interface *intf;
840 struct usb_interface *isoc;
841 struct usb_interface *diag;
842 unsigned isoc_ifnum;
843
844 unsigned long flags;
845
846 bool poll_sync;
847 int intr_interval;
848 struct work_struct work;
849 struct work_struct waker;
850 struct delayed_work rx_work;
851
852 struct sk_buff_head acl_q;
853
854 struct usb_anchor deferred;
855 struct usb_anchor tx_anchor;
856 int tx_in_flight;
857 spinlock_t txlock;
858
859 struct usb_anchor intr_anchor;
860 struct usb_anchor bulk_anchor;
861 struct usb_anchor isoc_anchor;
862 struct usb_anchor diag_anchor;
863 struct usb_anchor ctrl_anchor;
864 spinlock_t rxlock;
865
866 struct sk_buff *evt_skb;
867 struct sk_buff *acl_skb;
868 struct sk_buff *sco_skb;
869
870 struct usb_endpoint_descriptor *intr_ep;
871 struct usb_endpoint_descriptor *bulk_tx_ep;
872 struct usb_endpoint_descriptor *bulk_rx_ep;
873 struct usb_endpoint_descriptor *isoc_tx_ep;
874 struct usb_endpoint_descriptor *isoc_rx_ep;
875 struct usb_endpoint_descriptor *diag_tx_ep;
876 struct usb_endpoint_descriptor *diag_rx_ep;
877
878 struct gpio_desc *reset_gpio;
879
880 __u8 cmdreq_type;
881 __u8 cmdreq;
882
883 unsigned int sco_num;
884 unsigned int air_mode;
885 bool usb_alt6_packet_flow;
886 int isoc_altsetting;
887 int suspend_count;
888
889 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
890 int (*recv_acl)(struct hci_dev *hdev, struct sk_buff *skb);
891 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
892
893 int (*setup_on_usb)(struct hci_dev *hdev);
894
895 int (*suspend)(struct hci_dev *hdev);
896 int (*resume)(struct hci_dev *hdev);
897 int (*disconnect)(struct hci_dev *hdev);
898
899 int oob_wake_irq; /* irq for out-of-band wake-on-bt */
900 unsigned cmd_timeout_cnt;
901
902 struct qca_dump_info qca_dump;
903 };
904
btusb_reset(struct hci_dev * hdev)905 static void btusb_reset(struct hci_dev *hdev)
906 {
907 struct btusb_data *data;
908 int err;
909
910 if (hdev->reset) {
911 hdev->reset(hdev);
912 return;
913 }
914
915 data = hci_get_drvdata(hdev);
916 /* This is not an unbalanced PM reference since the device will reset */
917 err = usb_autopm_get_interface(data->intf);
918 if (err) {
919 bt_dev_err(hdev, "Failed usb_autopm_get_interface: %d", err);
920 return;
921 }
922
923 bt_dev_err(hdev, "Resetting usb device.");
924 usb_queue_reset_device(data->intf);
925 }
926
btusb_intel_cmd_timeout(struct hci_dev * hdev)927 static void btusb_intel_cmd_timeout(struct hci_dev *hdev)
928 {
929 struct btusb_data *data = hci_get_drvdata(hdev);
930 struct gpio_desc *reset_gpio = data->reset_gpio;
931 struct btintel_data *intel_data = hci_get_priv(hdev);
932
933 if (++data->cmd_timeout_cnt < 5)
934 return;
935
936 if (intel_data->acpi_reset_method) {
937 if (test_and_set_bit(INTEL_ACPI_RESET_ACTIVE, intel_data->flags)) {
938 bt_dev_err(hdev, "acpi: last reset failed ? Not resetting again");
939 return;
940 }
941
942 bt_dev_err(hdev, "Initiating acpi reset method");
943 /* If ACPI reset method fails, lets try with legacy GPIO
944 * toggling
945 */
946 if (!intel_data->acpi_reset_method(hdev)) {
947 return;
948 }
949 }
950
951 if (!reset_gpio) {
952 btusb_reset(hdev);
953 return;
954 }
955
956 /*
957 * Toggle the hard reset line if the platform provides one. The reset
958 * is going to yank the device off the USB and then replug. So doing
959 * once is enough. The cleanup is handled correctly on the way out
960 * (standard USB disconnect), and the new device is detected cleanly
961 * and bound to the driver again like it should be.
962 */
963 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
964 bt_dev_err(hdev, "last reset failed? Not resetting again");
965 return;
966 }
967
968 bt_dev_err(hdev, "Initiating HW reset via gpio");
969 gpiod_set_value_cansleep(reset_gpio, 1);
970 msleep(100);
971 gpiod_set_value_cansleep(reset_gpio, 0);
972 }
973
974 #define RTK_DEVCOREDUMP_CODE_MEMDUMP 0x01
975 #define RTK_DEVCOREDUMP_CODE_HW_ERR 0x02
976 #define RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT 0x03
977
978 #define RTK_SUB_EVENT_CODE_COREDUMP 0x34
979
980 struct rtk_dev_coredump_hdr {
981 u8 type;
982 u8 code;
983 u8 reserved[2];
984 } __packed;
985
btusb_rtl_alloc_devcoredump(struct hci_dev * hdev,struct rtk_dev_coredump_hdr * hdr,u8 * buf,u32 len)986 static inline void btusb_rtl_alloc_devcoredump(struct hci_dev *hdev,
987 struct rtk_dev_coredump_hdr *hdr, u8 *buf, u32 len)
988 {
989 struct sk_buff *skb;
990
991 skb = alloc_skb(len + sizeof(*hdr), GFP_ATOMIC);
992 if (!skb)
993 return;
994
995 skb_put_data(skb, hdr, sizeof(*hdr));
996 if (len)
997 skb_put_data(skb, buf, len);
998
999 if (!hci_devcd_init(hdev, skb->len)) {
1000 hci_devcd_append(hdev, skb);
1001 hci_devcd_complete(hdev);
1002 } else {
1003 bt_dev_err(hdev, "RTL: Failed to generate devcoredump");
1004 kfree_skb(skb);
1005 }
1006 }
1007
btusb_rtl_cmd_timeout(struct hci_dev * hdev)1008 static void btusb_rtl_cmd_timeout(struct hci_dev *hdev)
1009 {
1010 struct btusb_data *data = hci_get_drvdata(hdev);
1011 struct gpio_desc *reset_gpio = data->reset_gpio;
1012 struct rtk_dev_coredump_hdr hdr = {
1013 .type = RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT,
1014 };
1015
1016 btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0);
1017
1018 if (++data->cmd_timeout_cnt < 5)
1019 return;
1020
1021 if (!reset_gpio) {
1022 btusb_reset(hdev);
1023 return;
1024 }
1025
1026 /* Toggle the hard reset line. The Realtek device is going to
1027 * yank itself off the USB and then replug. The cleanup is handled
1028 * correctly on the way out (standard USB disconnect), and the new
1029 * device is detected cleanly and bound to the driver again like
1030 * 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, "Reset Realtek device via gpio");
1038 gpiod_set_value_cansleep(reset_gpio, 1);
1039 msleep(200);
1040 gpiod_set_value_cansleep(reset_gpio, 0);
1041 }
1042
btusb_rtl_hw_error(struct hci_dev * hdev,u8 code)1043 static void btusb_rtl_hw_error(struct hci_dev *hdev, u8 code)
1044 {
1045 struct rtk_dev_coredump_hdr hdr = {
1046 .type = RTK_DEVCOREDUMP_CODE_HW_ERR,
1047 .code = code,
1048 };
1049
1050 bt_dev_err(hdev, "RTL: hw err, trigger devcoredump (%d)", code);
1051
1052 btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0);
1053 }
1054
btusb_qca_cmd_timeout(struct hci_dev * hdev)1055 static void btusb_qca_cmd_timeout(struct hci_dev *hdev)
1056 {
1057 struct btusb_data *data = hci_get_drvdata(hdev);
1058 struct gpio_desc *reset_gpio = data->reset_gpio;
1059
1060 if (test_bit(BTUSB_HW_SSR_ACTIVE, &data->flags)) {
1061 bt_dev_info(hdev, "Ramdump in progress, defer cmd_timeout");
1062 return;
1063 }
1064
1065 if (++data->cmd_timeout_cnt < 5)
1066 return;
1067
1068 if (reset_gpio) {
1069 bt_dev_err(hdev, "Reset qca device via bt_en gpio");
1070
1071 /* Toggle the hard reset line. The qca bt device is going to
1072 * yank itself off the USB and then replug. The cleanup is handled
1073 * correctly on the way out (standard USB disconnect), and the new
1074 * device is detected cleanly and bound to the driver again like
1075 * it should be.
1076 */
1077 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
1078 bt_dev_err(hdev, "last reset failed? Not resetting again");
1079 return;
1080 }
1081
1082 gpiod_set_value_cansleep(reset_gpio, 0);
1083 msleep(200);
1084 gpiod_set_value_cansleep(reset_gpio, 1);
1085
1086 return;
1087 }
1088
1089 btusb_reset(hdev);
1090 }
1091
btusb_free_frags(struct btusb_data * data)1092 static inline void btusb_free_frags(struct btusb_data *data)
1093 {
1094 unsigned long flags;
1095
1096 spin_lock_irqsave(&data->rxlock, flags);
1097
1098 dev_kfree_skb_irq(data->evt_skb);
1099 data->evt_skb = NULL;
1100
1101 dev_kfree_skb_irq(data->acl_skb);
1102 data->acl_skb = NULL;
1103
1104 dev_kfree_skb_irq(data->sco_skb);
1105 data->sco_skb = NULL;
1106
1107 spin_unlock_irqrestore(&data->rxlock, flags);
1108 }
1109
btusb_recv_event(struct btusb_data * data,struct sk_buff * skb)1110 static int btusb_recv_event(struct btusb_data *data, struct sk_buff *skb)
1111 {
1112 if (data->intr_interval) {
1113 /* Trigger dequeue immediatelly if an event is received */
1114 schedule_delayed_work(&data->rx_work, 0);
1115 }
1116
1117 return data->recv_event(data->hdev, skb);
1118 }
1119
btusb_recv_intr(struct btusb_data * data,void * buffer,int count)1120 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
1121 {
1122 struct sk_buff *skb;
1123 unsigned long flags;
1124 int err = 0;
1125
1126 spin_lock_irqsave(&data->rxlock, flags);
1127 skb = data->evt_skb;
1128
1129 while (count) {
1130 int len;
1131
1132 if (!skb) {
1133 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
1134 if (!skb) {
1135 err = -ENOMEM;
1136 break;
1137 }
1138
1139 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
1140 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE;
1141 }
1142
1143 len = min_t(uint, hci_skb_expect(skb), count);
1144 skb_put_data(skb, buffer, len);
1145
1146 count -= len;
1147 buffer += len;
1148 hci_skb_expect(skb) -= len;
1149
1150 if (skb->len == HCI_EVENT_HDR_SIZE) {
1151 /* Complete event header */
1152 hci_skb_expect(skb) = hci_event_hdr(skb)->plen;
1153
1154 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
1155 kfree_skb(skb);
1156 skb = NULL;
1157
1158 err = -EILSEQ;
1159 break;
1160 }
1161 }
1162
1163 if (!hci_skb_expect(skb)) {
1164 /* Complete frame */
1165 btusb_recv_event(data, skb);
1166 skb = NULL;
1167 }
1168 }
1169
1170 data->evt_skb = skb;
1171 spin_unlock_irqrestore(&data->rxlock, flags);
1172
1173 return err;
1174 }
1175
btusb_recv_acl(struct btusb_data * data,struct sk_buff * skb)1176 static int btusb_recv_acl(struct btusb_data *data, struct sk_buff *skb)
1177 {
1178 /* Only queue ACL packet if intr_interval is set as it means
1179 * force_poll_sync has been enabled.
1180 */
1181 if (!data->intr_interval)
1182 return data->recv_acl(data->hdev, skb);
1183
1184 skb_queue_tail(&data->acl_q, skb);
1185 schedule_delayed_work(&data->rx_work, data->intr_interval);
1186
1187 return 0;
1188 }
1189
btusb_recv_bulk(struct btusb_data * data,void * buffer,int count)1190 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
1191 {
1192 struct sk_buff *skb;
1193 unsigned long flags;
1194 int err = 0;
1195
1196 spin_lock_irqsave(&data->rxlock, flags);
1197 skb = data->acl_skb;
1198
1199 while (count) {
1200 int len;
1201
1202 if (!skb) {
1203 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
1204 if (!skb) {
1205 err = -ENOMEM;
1206 break;
1207 }
1208
1209 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT;
1210 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE;
1211 }
1212
1213 len = min_t(uint, hci_skb_expect(skb), count);
1214 skb_put_data(skb, buffer, len);
1215
1216 count -= len;
1217 buffer += len;
1218 hci_skb_expect(skb) -= len;
1219
1220 if (skb->len == HCI_ACL_HDR_SIZE) {
1221 __le16 dlen = hci_acl_hdr(skb)->dlen;
1222
1223 /* Complete ACL header */
1224 hci_skb_expect(skb) = __le16_to_cpu(dlen);
1225
1226 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
1227 kfree_skb(skb);
1228 skb = NULL;
1229
1230 err = -EILSEQ;
1231 break;
1232 }
1233 }
1234
1235 if (!hci_skb_expect(skb)) {
1236 /* Complete frame */
1237 btusb_recv_acl(data, skb);
1238 skb = NULL;
1239 }
1240 }
1241
1242 data->acl_skb = skb;
1243 spin_unlock_irqrestore(&data->rxlock, flags);
1244
1245 return err;
1246 }
1247
btusb_validate_sco_handle(struct hci_dev * hdev,struct hci_sco_hdr * hdr)1248 static bool btusb_validate_sco_handle(struct hci_dev *hdev,
1249 struct hci_sco_hdr *hdr)
1250 {
1251 __u16 handle;
1252
1253 if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL))
1254 // Can't validate, userspace controls everything.
1255 return true;
1256
1257 /*
1258 * USB isochronous transfers are not designed to be reliable and may
1259 * lose fragments. When this happens, the next first fragment
1260 * encountered might actually be a continuation fragment.
1261 * Validate the handle to detect it and drop it, or else the upper
1262 * layer will get garbage for a while.
1263 */
1264
1265 handle = hci_handle(__le16_to_cpu(hdr->handle));
1266
1267 switch (hci_conn_lookup_type(hdev, handle)) {
1268 case SCO_LINK:
1269 case ESCO_LINK:
1270 return true;
1271 default:
1272 return false;
1273 }
1274 }
1275
btusb_recv_isoc(struct btusb_data * data,void * buffer,int count)1276 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
1277 {
1278 struct sk_buff *skb;
1279 unsigned long flags;
1280 int err = 0;
1281
1282 spin_lock_irqsave(&data->rxlock, flags);
1283 skb = data->sco_skb;
1284
1285 while (count) {
1286 int len;
1287
1288 if (!skb) {
1289 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
1290 if (!skb) {
1291 err = -ENOMEM;
1292 break;
1293 }
1294
1295 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT;
1296 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE;
1297 }
1298
1299 len = min_t(uint, hci_skb_expect(skb), count);
1300 skb_put_data(skb, buffer, len);
1301
1302 count -= len;
1303 buffer += len;
1304 hci_skb_expect(skb) -= len;
1305
1306 if (skb->len == HCI_SCO_HDR_SIZE) {
1307 /* Complete SCO header */
1308 struct hci_sco_hdr *hdr = hci_sco_hdr(skb);
1309
1310 hci_skb_expect(skb) = hdr->dlen;
1311
1312 if (skb_tailroom(skb) < hci_skb_expect(skb) ||
1313 !btusb_validate_sco_handle(data->hdev, hdr)) {
1314 kfree_skb(skb);
1315 skb = NULL;
1316
1317 err = -EILSEQ;
1318 break;
1319 }
1320 }
1321
1322 if (!hci_skb_expect(skb)) {
1323 /* Complete frame */
1324 hci_recv_frame(data->hdev, skb);
1325 skb = NULL;
1326 }
1327 }
1328
1329 data->sco_skb = skb;
1330 spin_unlock_irqrestore(&data->rxlock, flags);
1331
1332 return err;
1333 }
1334
btusb_intr_complete(struct urb * urb)1335 static void btusb_intr_complete(struct urb *urb)
1336 {
1337 struct hci_dev *hdev = urb->context;
1338 struct btusb_data *data = hci_get_drvdata(hdev);
1339 int err;
1340
1341 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1342 urb->actual_length);
1343
1344 if (!test_bit(HCI_RUNNING, &hdev->flags))
1345 return;
1346
1347 if (urb->status == 0) {
1348 hdev->stat.byte_rx += urb->actual_length;
1349
1350 if (btusb_recv_intr(data, urb->transfer_buffer,
1351 urb->actual_length) < 0) {
1352 bt_dev_err(hdev, "corrupted event packet");
1353 hdev->stat.err_rx++;
1354 }
1355 } else if (urb->status == -ENOENT) {
1356 /* Avoid suspend failed when usb_kill_urb */
1357 return;
1358 }
1359
1360 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
1361 return;
1362
1363 usb_mark_last_busy(data->udev);
1364 usb_anchor_urb(urb, &data->intr_anchor);
1365
1366 err = usb_submit_urb(urb, GFP_ATOMIC);
1367 if (err < 0) {
1368 /* -EPERM: urb is being killed;
1369 * -ENODEV: device got disconnected
1370 */
1371 if (err != -EPERM && err != -ENODEV)
1372 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1373 urb, -err);
1374 if (err != -EPERM)
1375 hci_cmd_sync_cancel(hdev, -err);
1376 usb_unanchor_urb(urb);
1377 }
1378 }
1379
btusb_submit_intr_urb(struct hci_dev * hdev,gfp_t mem_flags)1380 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
1381 {
1382 struct btusb_data *data = hci_get_drvdata(hdev);
1383 struct urb *urb;
1384 unsigned char *buf;
1385 unsigned int pipe;
1386 int err, size;
1387
1388 BT_DBG("%s", hdev->name);
1389
1390 if (!data->intr_ep)
1391 return -ENODEV;
1392
1393 urb = usb_alloc_urb(0, mem_flags);
1394 if (!urb)
1395 return -ENOMEM;
1396
1397 if (le16_to_cpu(data->udev->descriptor.idVendor) == 0x0a12 &&
1398 le16_to_cpu(data->udev->descriptor.idProduct) == 0x0001)
1399 /* Fake CSR devices don't seem to support sort-transter */
1400 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
1401 else
1402 /* Use maximum HCI Event size so the USB stack handles
1403 * ZPL/short-transfer automatically.
1404 */
1405 size = HCI_MAX_EVENT_SIZE;
1406
1407 buf = kmalloc(size, mem_flags);
1408 if (!buf) {
1409 usb_free_urb(urb);
1410 return -ENOMEM;
1411 }
1412
1413 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
1414
1415 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
1416 btusb_intr_complete, hdev, data->intr_ep->bInterval);
1417
1418 urb->transfer_flags |= URB_FREE_BUFFER;
1419
1420 usb_anchor_urb(urb, &data->intr_anchor);
1421
1422 err = usb_submit_urb(urb, mem_flags);
1423 if (err < 0) {
1424 if (err != -EPERM && err != -ENODEV)
1425 bt_dev_err(hdev, "urb %p submission failed (%d)",
1426 urb, -err);
1427 if (err != -EPERM)
1428 hci_cmd_sync_cancel(hdev, -err);
1429 usb_unanchor_urb(urb);
1430 }
1431
1432 /* Only initialize intr_interval if URB poll sync is enabled */
1433 if (!data->poll_sync)
1434 goto done;
1435
1436 /* The units are frames (milliseconds) for full and low speed devices,
1437 * and microframes (1/8 millisecond) for highspeed and SuperSpeed
1438 * devices.
1439 *
1440 * This is done once on open/resume so it shouldn't change even if
1441 * force_poll_sync changes.
1442 */
1443 switch (urb->dev->speed) {
1444 case USB_SPEED_SUPER_PLUS:
1445 case USB_SPEED_SUPER: /* units are 125us */
1446 data->intr_interval = usecs_to_jiffies(urb->interval * 125);
1447 break;
1448 default:
1449 data->intr_interval = msecs_to_jiffies(urb->interval);
1450 break;
1451 }
1452
1453 done:
1454 usb_free_urb(urb);
1455
1456 return err;
1457 }
1458
btusb_bulk_complete(struct urb * urb)1459 static void btusb_bulk_complete(struct urb *urb)
1460 {
1461 struct hci_dev *hdev = urb->context;
1462 struct btusb_data *data = hci_get_drvdata(hdev);
1463 int err;
1464
1465 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1466 urb->actual_length);
1467
1468 if (!test_bit(HCI_RUNNING, &hdev->flags))
1469 return;
1470
1471 if (urb->status == 0) {
1472 hdev->stat.byte_rx += urb->actual_length;
1473
1474 if (data->recv_bulk(data, urb->transfer_buffer,
1475 urb->actual_length) < 0) {
1476 bt_dev_err(hdev, "corrupted ACL packet");
1477 hdev->stat.err_rx++;
1478 }
1479 } else if (urb->status == -ENOENT) {
1480 /* Avoid suspend failed when usb_kill_urb */
1481 return;
1482 }
1483
1484 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
1485 return;
1486
1487 usb_anchor_urb(urb, &data->bulk_anchor);
1488 usb_mark_last_busy(data->udev);
1489
1490 err = usb_submit_urb(urb, GFP_ATOMIC);
1491 if (err < 0) {
1492 /* -EPERM: urb is being killed;
1493 * -ENODEV: device got disconnected
1494 */
1495 if (err != -EPERM && err != -ENODEV)
1496 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1497 urb, -err);
1498 usb_unanchor_urb(urb);
1499 }
1500 }
1501
btusb_submit_bulk_urb(struct hci_dev * hdev,gfp_t mem_flags)1502 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
1503 {
1504 struct btusb_data *data = hci_get_drvdata(hdev);
1505 struct urb *urb;
1506 unsigned char *buf;
1507 unsigned int pipe;
1508 int err, size = HCI_MAX_FRAME_SIZE;
1509
1510 BT_DBG("%s", hdev->name);
1511
1512 if (!data->bulk_rx_ep)
1513 return -ENODEV;
1514
1515 urb = usb_alloc_urb(0, mem_flags);
1516 if (!urb)
1517 return -ENOMEM;
1518
1519 buf = kmalloc(size, mem_flags);
1520 if (!buf) {
1521 usb_free_urb(urb);
1522 return -ENOMEM;
1523 }
1524
1525 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
1526
1527 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1528 btusb_bulk_complete, hdev);
1529
1530 urb->transfer_flags |= URB_FREE_BUFFER;
1531
1532 usb_mark_last_busy(data->udev);
1533 usb_anchor_urb(urb, &data->bulk_anchor);
1534
1535 err = usb_submit_urb(urb, mem_flags);
1536 if (err < 0) {
1537 if (err != -EPERM && err != -ENODEV)
1538 bt_dev_err(hdev, "urb %p submission failed (%d)",
1539 urb, -err);
1540 usb_unanchor_urb(urb);
1541 }
1542
1543 usb_free_urb(urb);
1544
1545 return err;
1546 }
1547
btusb_isoc_complete(struct urb * urb)1548 static void btusb_isoc_complete(struct urb *urb)
1549 {
1550 struct hci_dev *hdev = urb->context;
1551 struct btusb_data *data = hci_get_drvdata(hdev);
1552 int i, err;
1553
1554 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1555 urb->actual_length);
1556
1557 if (!test_bit(HCI_RUNNING, &hdev->flags))
1558 return;
1559
1560 if (urb->status == 0) {
1561 for (i = 0; i < urb->number_of_packets; i++) {
1562 unsigned int offset = urb->iso_frame_desc[i].offset;
1563 unsigned int length = urb->iso_frame_desc[i].actual_length;
1564
1565 if (urb->iso_frame_desc[i].status)
1566 continue;
1567
1568 hdev->stat.byte_rx += length;
1569
1570 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
1571 length) < 0) {
1572 bt_dev_err(hdev, "corrupted SCO packet");
1573 hdev->stat.err_rx++;
1574 }
1575 }
1576 } else if (urb->status == -ENOENT) {
1577 /* Avoid suspend failed when usb_kill_urb */
1578 return;
1579 }
1580
1581 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
1582 return;
1583
1584 usb_anchor_urb(urb, &data->isoc_anchor);
1585
1586 err = usb_submit_urb(urb, GFP_ATOMIC);
1587 if (err < 0) {
1588 /* -EPERM: urb is being killed;
1589 * -ENODEV: device got disconnected
1590 */
1591 if (err != -EPERM && err != -ENODEV)
1592 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1593 urb, -err);
1594 usb_unanchor_urb(urb);
1595 }
1596 }
1597
__fill_isoc_descriptor_msbc(struct urb * urb,int len,int mtu,struct btusb_data * data)1598 static inline void __fill_isoc_descriptor_msbc(struct urb *urb, int len,
1599 int mtu, struct btusb_data *data)
1600 {
1601 int i = 0, offset = 0;
1602 unsigned int interval;
1603
1604 BT_DBG("len %d mtu %d", len, mtu);
1605
1606 /* For mSBC ALT 6 settings some chips need to transmit the data
1607 * continuously without the zero length of USB packets.
1608 */
1609 if (test_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags))
1610 goto ignore_usb_alt6_packet_flow;
1611
1612 /* For mSBC ALT 6 setting the host will send the packet at continuous
1613 * flow. As per core spec 5, vol 4, part B, table 2.1. For ALT setting
1614 * 6 the HCI PACKET INTERVAL should be 7.5ms for every usb packets.
1615 * To maintain the rate we send 63bytes of usb packets alternatively for
1616 * 7ms and 8ms to maintain the rate as 7.5ms.
1617 */
1618 if (data->usb_alt6_packet_flow) {
1619 interval = 7;
1620 data->usb_alt6_packet_flow = false;
1621 } else {
1622 interval = 6;
1623 data->usb_alt6_packet_flow = true;
1624 }
1625
1626 for (i = 0; i < interval; i++) {
1627 urb->iso_frame_desc[i].offset = offset;
1628 urb->iso_frame_desc[i].length = offset;
1629 }
1630
1631 ignore_usb_alt6_packet_flow:
1632 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1633 urb->iso_frame_desc[i].offset = offset;
1634 urb->iso_frame_desc[i].length = len;
1635 i++;
1636 }
1637
1638 urb->number_of_packets = i;
1639 }
1640
__fill_isoc_descriptor(struct urb * urb,int len,int mtu)1641 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
1642 {
1643 int i, offset = 0;
1644
1645 BT_DBG("len %d mtu %d", len, mtu);
1646
1647 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
1648 i++, offset += mtu, len -= mtu) {
1649 urb->iso_frame_desc[i].offset = offset;
1650 urb->iso_frame_desc[i].length = mtu;
1651 }
1652
1653 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1654 urb->iso_frame_desc[i].offset = offset;
1655 urb->iso_frame_desc[i].length = len;
1656 i++;
1657 }
1658
1659 urb->number_of_packets = i;
1660 }
1661
btusb_submit_isoc_urb(struct hci_dev * hdev,gfp_t mem_flags)1662 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
1663 {
1664 struct btusb_data *data = hci_get_drvdata(hdev);
1665 struct urb *urb;
1666 unsigned char *buf;
1667 unsigned int pipe;
1668 int err, size;
1669
1670 BT_DBG("%s", hdev->name);
1671
1672 if (!data->isoc_rx_ep)
1673 return -ENODEV;
1674
1675 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
1676 if (!urb)
1677 return -ENOMEM;
1678
1679 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
1680 BTUSB_MAX_ISOC_FRAMES;
1681
1682 buf = kmalloc(size, mem_flags);
1683 if (!buf) {
1684 usb_free_urb(urb);
1685 return -ENOMEM;
1686 }
1687
1688 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
1689
1690 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
1691 hdev, data->isoc_rx_ep->bInterval);
1692
1693 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
1694
1695 __fill_isoc_descriptor(urb, size,
1696 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
1697
1698 usb_anchor_urb(urb, &data->isoc_anchor);
1699
1700 err = usb_submit_urb(urb, mem_flags);
1701 if (err < 0) {
1702 if (err != -EPERM && err != -ENODEV)
1703 bt_dev_err(hdev, "urb %p submission failed (%d)",
1704 urb, -err);
1705 usb_unanchor_urb(urb);
1706 }
1707
1708 usb_free_urb(urb);
1709
1710 return err;
1711 }
1712
btusb_diag_complete(struct urb * urb)1713 static void btusb_diag_complete(struct urb *urb)
1714 {
1715 struct hci_dev *hdev = urb->context;
1716 struct btusb_data *data = hci_get_drvdata(hdev);
1717 int err;
1718
1719 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1720 urb->actual_length);
1721
1722 if (urb->status == 0) {
1723 struct sk_buff *skb;
1724
1725 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC);
1726 if (skb) {
1727 skb_put_data(skb, urb->transfer_buffer,
1728 urb->actual_length);
1729 hci_recv_diag(hdev, skb);
1730 }
1731 } else if (urb->status == -ENOENT) {
1732 /* Avoid suspend failed when usb_kill_urb */
1733 return;
1734 }
1735
1736 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags))
1737 return;
1738
1739 usb_anchor_urb(urb, &data->diag_anchor);
1740 usb_mark_last_busy(data->udev);
1741
1742 err = usb_submit_urb(urb, GFP_ATOMIC);
1743 if (err < 0) {
1744 /* -EPERM: urb is being killed;
1745 * -ENODEV: device got disconnected
1746 */
1747 if (err != -EPERM && err != -ENODEV)
1748 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1749 urb, -err);
1750 usb_unanchor_urb(urb);
1751 }
1752 }
1753
btusb_submit_diag_urb(struct hci_dev * hdev,gfp_t mem_flags)1754 static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags)
1755 {
1756 struct btusb_data *data = hci_get_drvdata(hdev);
1757 struct urb *urb;
1758 unsigned char *buf;
1759 unsigned int pipe;
1760 int err, size = HCI_MAX_FRAME_SIZE;
1761
1762 BT_DBG("%s", hdev->name);
1763
1764 if (!data->diag_rx_ep)
1765 return -ENODEV;
1766
1767 urb = usb_alloc_urb(0, mem_flags);
1768 if (!urb)
1769 return -ENOMEM;
1770
1771 buf = kmalloc(size, mem_flags);
1772 if (!buf) {
1773 usb_free_urb(urb);
1774 return -ENOMEM;
1775 }
1776
1777 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress);
1778
1779 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1780 btusb_diag_complete, hdev);
1781
1782 urb->transfer_flags |= URB_FREE_BUFFER;
1783
1784 usb_mark_last_busy(data->udev);
1785 usb_anchor_urb(urb, &data->diag_anchor);
1786
1787 err = usb_submit_urb(urb, mem_flags);
1788 if (err < 0) {
1789 if (err != -EPERM && err != -ENODEV)
1790 bt_dev_err(hdev, "urb %p submission failed (%d)",
1791 urb, -err);
1792 usb_unanchor_urb(urb);
1793 }
1794
1795 usb_free_urb(urb);
1796
1797 return err;
1798 }
1799
btusb_tx_complete(struct urb * urb)1800 static void btusb_tx_complete(struct urb *urb)
1801 {
1802 struct sk_buff *skb = urb->context;
1803 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1804 struct btusb_data *data = hci_get_drvdata(hdev);
1805 unsigned long flags;
1806
1807 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1808 urb->actual_length);
1809
1810 if (!test_bit(HCI_RUNNING, &hdev->flags))
1811 goto done;
1812
1813 if (!urb->status) {
1814 hdev->stat.byte_tx += urb->transfer_buffer_length;
1815 } else {
1816 if (hci_skb_pkt_type(skb) == HCI_COMMAND_PKT)
1817 hci_cmd_sync_cancel(hdev, -urb->status);
1818 hdev->stat.err_tx++;
1819 }
1820
1821 done:
1822 spin_lock_irqsave(&data->txlock, flags);
1823 data->tx_in_flight--;
1824 spin_unlock_irqrestore(&data->txlock, flags);
1825
1826 kfree(urb->setup_packet);
1827
1828 kfree_skb(skb);
1829 }
1830
btusb_isoc_tx_complete(struct urb * urb)1831 static void btusb_isoc_tx_complete(struct urb *urb)
1832 {
1833 struct sk_buff *skb = urb->context;
1834 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1835
1836 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1837 urb->actual_length);
1838
1839 if (!test_bit(HCI_RUNNING, &hdev->flags))
1840 goto done;
1841
1842 if (!urb->status)
1843 hdev->stat.byte_tx += urb->transfer_buffer_length;
1844 else
1845 hdev->stat.err_tx++;
1846
1847 done:
1848 kfree(urb->setup_packet);
1849
1850 kfree_skb(skb);
1851 }
1852
btusb_open(struct hci_dev * hdev)1853 static int btusb_open(struct hci_dev *hdev)
1854 {
1855 struct btusb_data *data = hci_get_drvdata(hdev);
1856 int err;
1857
1858 BT_DBG("%s", hdev->name);
1859
1860 err = usb_autopm_get_interface(data->intf);
1861 if (err < 0)
1862 return err;
1863
1864 /* Patching USB firmware files prior to starting any URBs of HCI path
1865 * It is more safe to use USB bulk channel for downloading USB patch
1866 */
1867 if (data->setup_on_usb) {
1868 err = data->setup_on_usb(hdev);
1869 if (err < 0)
1870 goto setup_fail;
1871 }
1872
1873 data->intf->needs_remote_wakeup = 1;
1874
1875 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
1876 goto done;
1877
1878 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
1879 if (err < 0)
1880 goto failed;
1881
1882 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1883 if (err < 0) {
1884 usb_kill_anchored_urbs(&data->intr_anchor);
1885 goto failed;
1886 }
1887
1888 set_bit(BTUSB_BULK_RUNNING, &data->flags);
1889 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1890
1891 if (data->diag) {
1892 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL))
1893 set_bit(BTUSB_DIAG_RUNNING, &data->flags);
1894 }
1895
1896 done:
1897 usb_autopm_put_interface(data->intf);
1898 return 0;
1899
1900 failed:
1901 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1902 setup_fail:
1903 usb_autopm_put_interface(data->intf);
1904 return err;
1905 }
1906
btusb_stop_traffic(struct btusb_data * data)1907 static void btusb_stop_traffic(struct btusb_data *data)
1908 {
1909 usb_kill_anchored_urbs(&data->intr_anchor);
1910 usb_kill_anchored_urbs(&data->bulk_anchor);
1911 usb_kill_anchored_urbs(&data->isoc_anchor);
1912 usb_kill_anchored_urbs(&data->diag_anchor);
1913 usb_kill_anchored_urbs(&data->ctrl_anchor);
1914 }
1915
btusb_close(struct hci_dev * hdev)1916 static int btusb_close(struct hci_dev *hdev)
1917 {
1918 struct btusb_data *data = hci_get_drvdata(hdev);
1919 int err;
1920
1921 BT_DBG("%s", hdev->name);
1922
1923 cancel_delayed_work(&data->rx_work);
1924 cancel_work_sync(&data->work);
1925 cancel_work_sync(&data->waker);
1926
1927 skb_queue_purge(&data->acl_q);
1928
1929 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1930 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1931 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1932 clear_bit(BTUSB_DIAG_RUNNING, &data->flags);
1933
1934 btusb_stop_traffic(data);
1935 btusb_free_frags(data);
1936
1937 err = usb_autopm_get_interface(data->intf);
1938 if (err < 0)
1939 goto failed;
1940
1941 data->intf->needs_remote_wakeup = 0;
1942
1943 /* Enable remote wake up for auto-suspend */
1944 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags))
1945 data->intf->needs_remote_wakeup = 1;
1946
1947 usb_autopm_put_interface(data->intf);
1948
1949 failed:
1950 usb_scuttle_anchored_urbs(&data->deferred);
1951 return 0;
1952 }
1953
btusb_flush(struct hci_dev * hdev)1954 static int btusb_flush(struct hci_dev *hdev)
1955 {
1956 struct btusb_data *data = hci_get_drvdata(hdev);
1957
1958 BT_DBG("%s", hdev->name);
1959
1960 cancel_delayed_work(&data->rx_work);
1961
1962 skb_queue_purge(&data->acl_q);
1963
1964 usb_kill_anchored_urbs(&data->tx_anchor);
1965 btusb_free_frags(data);
1966
1967 return 0;
1968 }
1969
alloc_ctrl_urb(struct hci_dev * hdev,struct sk_buff * skb)1970 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
1971 {
1972 struct btusb_data *data = hci_get_drvdata(hdev);
1973 struct usb_ctrlrequest *dr;
1974 struct urb *urb;
1975 unsigned int pipe;
1976
1977 urb = usb_alloc_urb(0, GFP_KERNEL);
1978 if (!urb)
1979 return ERR_PTR(-ENOMEM);
1980
1981 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
1982 if (!dr) {
1983 usb_free_urb(urb);
1984 return ERR_PTR(-ENOMEM);
1985 }
1986
1987 dr->bRequestType = data->cmdreq_type;
1988 dr->bRequest = data->cmdreq;
1989 dr->wIndex = 0;
1990 dr->wValue = 0;
1991 dr->wLength = __cpu_to_le16(skb->len);
1992
1993 pipe = usb_sndctrlpipe(data->udev, 0x00);
1994
1995 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
1996 skb->data, skb->len, btusb_tx_complete, skb);
1997
1998 skb->dev = (void *)hdev;
1999
2000 return urb;
2001 }
2002
alloc_bulk_urb(struct hci_dev * hdev,struct sk_buff * skb)2003 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
2004 {
2005 struct btusb_data *data = hci_get_drvdata(hdev);
2006 struct urb *urb;
2007 unsigned int pipe;
2008
2009 if (!data->bulk_tx_ep)
2010 return ERR_PTR(-ENODEV);
2011
2012 urb = usb_alloc_urb(0, GFP_KERNEL);
2013 if (!urb)
2014 return ERR_PTR(-ENOMEM);
2015
2016 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
2017
2018 usb_fill_bulk_urb(urb, data->udev, pipe,
2019 skb->data, skb->len, btusb_tx_complete, skb);
2020
2021 skb->dev = (void *)hdev;
2022
2023 return urb;
2024 }
2025
alloc_isoc_urb(struct hci_dev * hdev,struct sk_buff * skb)2026 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
2027 {
2028 struct btusb_data *data = hci_get_drvdata(hdev);
2029 struct urb *urb;
2030 unsigned int pipe;
2031
2032 if (!data->isoc_tx_ep)
2033 return ERR_PTR(-ENODEV);
2034
2035 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
2036 if (!urb)
2037 return ERR_PTR(-ENOMEM);
2038
2039 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
2040
2041 usb_fill_int_urb(urb, data->udev, pipe,
2042 skb->data, skb->len, btusb_isoc_tx_complete,
2043 skb, data->isoc_tx_ep->bInterval);
2044
2045 urb->transfer_flags = URB_ISO_ASAP;
2046
2047 if (data->isoc_altsetting == 6)
2048 __fill_isoc_descriptor_msbc(urb, skb->len,
2049 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize),
2050 data);
2051 else
2052 __fill_isoc_descriptor(urb, skb->len,
2053 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
2054 skb->dev = (void *)hdev;
2055
2056 return urb;
2057 }
2058
submit_tx_urb(struct hci_dev * hdev,struct urb * urb)2059 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
2060 {
2061 struct btusb_data *data = hci_get_drvdata(hdev);
2062 int err;
2063
2064 usb_anchor_urb(urb, &data->tx_anchor);
2065
2066 err = usb_submit_urb(urb, GFP_KERNEL);
2067 if (err < 0) {
2068 if (err != -EPERM && err != -ENODEV)
2069 bt_dev_err(hdev, "urb %p submission failed (%d)",
2070 urb, -err);
2071 kfree(urb->setup_packet);
2072 usb_unanchor_urb(urb);
2073 } else {
2074 usb_mark_last_busy(data->udev);
2075 }
2076
2077 usb_free_urb(urb);
2078 return err;
2079 }
2080
submit_or_queue_tx_urb(struct hci_dev * hdev,struct urb * urb)2081 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
2082 {
2083 struct btusb_data *data = hci_get_drvdata(hdev);
2084 unsigned long flags;
2085 bool suspending;
2086
2087 spin_lock_irqsave(&data->txlock, flags);
2088 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
2089 if (!suspending)
2090 data->tx_in_flight++;
2091 spin_unlock_irqrestore(&data->txlock, flags);
2092
2093 if (!suspending)
2094 return submit_tx_urb(hdev, urb);
2095
2096 usb_anchor_urb(urb, &data->deferred);
2097 schedule_work(&data->waker);
2098
2099 usb_free_urb(urb);
2100 return 0;
2101 }
2102
btusb_send_frame(struct hci_dev * hdev,struct sk_buff * skb)2103 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
2104 {
2105 struct urb *urb;
2106
2107 BT_DBG("%s", hdev->name);
2108
2109 switch (hci_skb_pkt_type(skb)) {
2110 case HCI_COMMAND_PKT:
2111 urb = alloc_ctrl_urb(hdev, skb);
2112 if (IS_ERR(urb))
2113 return PTR_ERR(urb);
2114
2115 hdev->stat.cmd_tx++;
2116 return submit_or_queue_tx_urb(hdev, urb);
2117
2118 case HCI_ACLDATA_PKT:
2119 urb = alloc_bulk_urb(hdev, skb);
2120 if (IS_ERR(urb))
2121 return PTR_ERR(urb);
2122
2123 hdev->stat.acl_tx++;
2124 return submit_or_queue_tx_urb(hdev, urb);
2125
2126 case HCI_SCODATA_PKT:
2127 if (hci_conn_num(hdev, SCO_LINK) < 1)
2128 return -ENODEV;
2129
2130 urb = alloc_isoc_urb(hdev, skb);
2131 if (IS_ERR(urb))
2132 return PTR_ERR(urb);
2133
2134 hdev->stat.sco_tx++;
2135 return submit_tx_urb(hdev, urb);
2136
2137 case HCI_ISODATA_PKT:
2138 urb = alloc_bulk_urb(hdev, skb);
2139 if (IS_ERR(urb))
2140 return PTR_ERR(urb);
2141
2142 return submit_or_queue_tx_urb(hdev, urb);
2143 }
2144
2145 return -EILSEQ;
2146 }
2147
btusb_notify(struct hci_dev * hdev,unsigned int evt)2148 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
2149 {
2150 struct btusb_data *data = hci_get_drvdata(hdev);
2151
2152 BT_DBG("%s evt %d", hdev->name, evt);
2153
2154 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
2155 data->sco_num = hci_conn_num(hdev, SCO_LINK);
2156 data->air_mode = evt;
2157 schedule_work(&data->work);
2158 }
2159 }
2160
__set_isoc_interface(struct hci_dev * hdev,int altsetting)2161 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
2162 {
2163 struct btusb_data *data = hci_get_drvdata(hdev);
2164 struct usb_interface *intf = data->isoc;
2165 struct usb_endpoint_descriptor *ep_desc;
2166 int i, err;
2167
2168 if (!data->isoc)
2169 return -ENODEV;
2170
2171 err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting);
2172 if (err < 0) {
2173 bt_dev_err(hdev, "setting interface failed (%d)", -err);
2174 return err;
2175 }
2176
2177 data->isoc_altsetting = altsetting;
2178
2179 data->isoc_tx_ep = NULL;
2180 data->isoc_rx_ep = NULL;
2181
2182 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2183 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2184
2185 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
2186 data->isoc_tx_ep = ep_desc;
2187 continue;
2188 }
2189
2190 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
2191 data->isoc_rx_ep = ep_desc;
2192 continue;
2193 }
2194 }
2195
2196 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
2197 bt_dev_err(hdev, "invalid SCO descriptors");
2198 return -ENODEV;
2199 }
2200
2201 return 0;
2202 }
2203
btusb_switch_alt_setting(struct hci_dev * hdev,int new_alts)2204 static int btusb_switch_alt_setting(struct hci_dev *hdev, int new_alts)
2205 {
2206 struct btusb_data *data = hci_get_drvdata(hdev);
2207 int err;
2208
2209 if (data->isoc_altsetting != new_alts) {
2210 unsigned long flags;
2211
2212 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2213 usb_kill_anchored_urbs(&data->isoc_anchor);
2214
2215 /* When isochronous alternate setting needs to be
2216 * changed, because SCO connection has been added
2217 * or removed, a packet fragment may be left in the
2218 * reassembling state. This could lead to wrongly
2219 * assembled fragments.
2220 *
2221 * Clear outstanding fragment when selecting a new
2222 * alternate setting.
2223 */
2224 spin_lock_irqsave(&data->rxlock, flags);
2225 dev_kfree_skb_irq(data->sco_skb);
2226 data->sco_skb = NULL;
2227 spin_unlock_irqrestore(&data->rxlock, flags);
2228
2229 err = __set_isoc_interface(hdev, new_alts);
2230 if (err < 0)
2231 return err;
2232 }
2233
2234 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2235 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
2236 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2237 else
2238 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
2239 }
2240
2241 return 0;
2242 }
2243
btusb_find_altsetting(struct btusb_data * data,int alt)2244 static struct usb_host_interface *btusb_find_altsetting(struct btusb_data *data,
2245 int alt)
2246 {
2247 struct usb_interface *intf = data->isoc;
2248 int i;
2249
2250 BT_DBG("Looking for Alt no :%d", alt);
2251
2252 if (!intf)
2253 return NULL;
2254
2255 for (i = 0; i < intf->num_altsetting; i++) {
2256 if (intf->altsetting[i].desc.bAlternateSetting == alt)
2257 return &intf->altsetting[i];
2258 }
2259
2260 return NULL;
2261 }
2262
btusb_work(struct work_struct * work)2263 static void btusb_work(struct work_struct *work)
2264 {
2265 struct btusb_data *data = container_of(work, struct btusb_data, work);
2266 struct hci_dev *hdev = data->hdev;
2267 int new_alts = 0;
2268 int err;
2269
2270 if (data->sco_num > 0) {
2271 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
2272 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
2273 if (err < 0) {
2274 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2275 usb_kill_anchored_urbs(&data->isoc_anchor);
2276 return;
2277 }
2278
2279 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
2280 }
2281
2282 if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_CVSD) {
2283 if (hdev->voice_setting & 0x0020) {
2284 static const int alts[3] = { 2, 4, 5 };
2285
2286 new_alts = alts[data->sco_num - 1];
2287 } else {
2288 new_alts = data->sco_num;
2289 }
2290 } else if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_TRANSP) {
2291 /* Bluetooth USB spec recommends alt 6 (63 bytes), but
2292 * many adapters do not support it. Alt 1 appears to
2293 * work for all adapters that do not have alt 6, and
2294 * which work with WBS at all. Some devices prefer
2295 * alt 3 (HCI payload >= 60 Bytes let air packet
2296 * data satisfy 60 bytes), requiring
2297 * MTU >= 3 (packets) * 25 (size) - 3 (headers) = 72
2298 * see also Core spec 5, vol 4, B 2.1.1 & Table 2.1.
2299 */
2300 if (btusb_find_altsetting(data, 6))
2301 new_alts = 6;
2302 else if (btusb_find_altsetting(data, 3) &&
2303 hdev->sco_mtu >= 72 &&
2304 test_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags))
2305 new_alts = 3;
2306 else
2307 new_alts = 1;
2308 }
2309
2310 if (btusb_switch_alt_setting(hdev, new_alts) < 0)
2311 bt_dev_err(hdev, "set USB alt:(%d) failed!", new_alts);
2312 } else {
2313 usb_kill_anchored_urbs(&data->isoc_anchor);
2314
2315 if (test_and_clear_bit(BTUSB_ISOC_RUNNING, &data->flags))
2316 __set_isoc_interface(hdev, 0);
2317
2318 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
2319 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
2320 }
2321 }
2322
btusb_waker(struct work_struct * work)2323 static void btusb_waker(struct work_struct *work)
2324 {
2325 struct btusb_data *data = container_of(work, struct btusb_data, waker);
2326 int err;
2327
2328 err = usb_autopm_get_interface(data->intf);
2329 if (err < 0)
2330 return;
2331
2332 usb_autopm_put_interface(data->intf);
2333 }
2334
btusb_rx_work(struct work_struct * work)2335 static void btusb_rx_work(struct work_struct *work)
2336 {
2337 struct btusb_data *data = container_of(work, struct btusb_data,
2338 rx_work.work);
2339 struct sk_buff *skb;
2340
2341 /* Dequeue ACL data received during the interval */
2342 while ((skb = skb_dequeue(&data->acl_q)))
2343 data->recv_acl(data->hdev, skb);
2344 }
2345
btusb_setup_bcm92035(struct hci_dev * hdev)2346 static int btusb_setup_bcm92035(struct hci_dev *hdev)
2347 {
2348 struct sk_buff *skb;
2349 u8 val = 0x00;
2350
2351 BT_DBG("%s", hdev->name);
2352
2353 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
2354 if (IS_ERR(skb))
2355 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb));
2356 else
2357 kfree_skb(skb);
2358
2359 return 0;
2360 }
2361
btusb_setup_csr(struct hci_dev * hdev)2362 static int btusb_setup_csr(struct hci_dev *hdev)
2363 {
2364 struct btusb_data *data = hci_get_drvdata(hdev);
2365 u16 bcdDevice = le16_to_cpu(data->udev->descriptor.bcdDevice);
2366 struct hci_rp_read_local_version *rp;
2367 struct sk_buff *skb;
2368 bool is_fake = false;
2369 int ret;
2370
2371 BT_DBG("%s", hdev->name);
2372
2373 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
2374 HCI_INIT_TIMEOUT);
2375 if (IS_ERR(skb)) {
2376 int err = PTR_ERR(skb);
2377 bt_dev_err(hdev, "CSR: Local version failed (%d)", err);
2378 return err;
2379 }
2380
2381 rp = skb_pull_data(skb, sizeof(*rp));
2382 if (!rp) {
2383 bt_dev_err(hdev, "CSR: Local version length mismatch");
2384 kfree_skb(skb);
2385 return -EIO;
2386 }
2387
2388 bt_dev_info(hdev, "CSR: Setting up dongle with HCI ver=%u rev=%04x",
2389 rp->hci_ver, le16_to_cpu(rp->hci_rev));
2390
2391 bt_dev_info(hdev, "LMP ver=%u subver=%04x; manufacturer=%u",
2392 rp->lmp_ver, le16_to_cpu(rp->lmp_subver),
2393 le16_to_cpu(rp->manufacturer));
2394
2395 /* Detect a wide host of Chinese controllers that aren't CSR.
2396 *
2397 * Known fake bcdDevices: 0x0100, 0x0134, 0x1915, 0x2520, 0x7558, 0x8891
2398 *
2399 * The main thing they have in common is that these are really popular low-cost
2400 * options that support newer Bluetooth versions but rely on heavy VID/PID
2401 * squatting of this poor old Bluetooth 1.1 device. Even sold as such.
2402 *
2403 * We detect actual CSR devices by checking that the HCI manufacturer code
2404 * is Cambridge Silicon Radio (10) and ensuring that LMP sub-version and
2405 * HCI rev values always match. As they both store the firmware number.
2406 */
2407 if (le16_to_cpu(rp->manufacturer) != 10 ||
2408 le16_to_cpu(rp->hci_rev) != le16_to_cpu(rp->lmp_subver))
2409 is_fake = true;
2410
2411 /* Known legit CSR firmware build numbers and their supported BT versions:
2412 * - 1.1 (0x1) -> 0x0073, 0x020d, 0x033c, 0x034e
2413 * - 1.2 (0x2) -> 0x04d9, 0x0529
2414 * - 2.0 (0x3) -> 0x07a6, 0x07ad, 0x0c5c
2415 * - 2.1 (0x4) -> 0x149c, 0x1735, 0x1899 (0x1899 is a BlueCore4-External)
2416 * - 4.0 (0x6) -> 0x1d86, 0x2031, 0x22bb
2417 *
2418 * e.g. Real CSR dongles with LMP subversion 0x73 are old enough that
2419 * support BT 1.1 only; so it's a dead giveaway when some
2420 * third-party BT 4.0 dongle reuses it.
2421 */
2422 else if (le16_to_cpu(rp->lmp_subver) <= 0x034e &&
2423 rp->hci_ver > BLUETOOTH_VER_1_1)
2424 is_fake = true;
2425
2426 else if (le16_to_cpu(rp->lmp_subver) <= 0x0529 &&
2427 rp->hci_ver > BLUETOOTH_VER_1_2)
2428 is_fake = true;
2429
2430 else if (le16_to_cpu(rp->lmp_subver) <= 0x0c5c &&
2431 rp->hci_ver > BLUETOOTH_VER_2_0)
2432 is_fake = true;
2433
2434 else if (le16_to_cpu(rp->lmp_subver) <= 0x1899 &&
2435 rp->hci_ver > BLUETOOTH_VER_2_1)
2436 is_fake = true;
2437
2438 else if (le16_to_cpu(rp->lmp_subver) <= 0x22bb &&
2439 rp->hci_ver > BLUETOOTH_VER_4_0)
2440 is_fake = true;
2441
2442 /* Other clones which beat all the above checks */
2443 else if (bcdDevice == 0x0134 &&
2444 le16_to_cpu(rp->lmp_subver) == 0x0c5c &&
2445 rp->hci_ver == BLUETOOTH_VER_2_0)
2446 is_fake = true;
2447
2448 if (is_fake) {
2449 bt_dev_warn(hdev, "CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once...");
2450
2451 /* Generally these clones have big discrepancies between
2452 * advertised features and what's actually supported.
2453 * Probably will need to be expanded in the future;
2454 * without these the controller will lock up.
2455 */
2456 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
2457 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks);
2458 set_bit(HCI_QUIRK_BROKEN_FILTER_CLEAR_ALL, &hdev->quirks);
2459 set_bit(HCI_QUIRK_NO_SUSPEND_NOTIFIER, &hdev->quirks);
2460
2461 /* Clear the reset quirk since this is not an actual
2462 * early Bluetooth 1.1 device from CSR.
2463 */
2464 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
2465 clear_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
2466
2467 /*
2468 * Special workaround for these BT 4.0 chip clones, and potentially more:
2469 *
2470 * - 0x0134: a Barrot 8041a02 (HCI rev: 0x0810 sub: 0x1012)
2471 * - 0x7558: IC markings FR3191AHAL 749H15143 (HCI rev/sub-version: 0x0709)
2472 *
2473 * These controllers are really messed-up.
2474 *
2475 * 1. Their bulk RX endpoint will never report any data unless
2476 * the device was suspended at least once (yes, really).
2477 * 2. They will not wakeup when autosuspended and receiving data
2478 * on their bulk RX endpoint from e.g. a keyboard or mouse
2479 * (IOW remote-wakeup support is broken for the bulk endpoint).
2480 *
2481 * To fix 1. enable runtime-suspend, force-suspend the
2482 * HCI and then wake-it up by disabling runtime-suspend.
2483 *
2484 * To fix 2. clear the HCI's can_wake flag, this way the HCI
2485 * will still be autosuspended when it is not open.
2486 *
2487 * --
2488 *
2489 * Because these are widespread problems we prefer generic solutions; so
2490 * apply this initialization quirk to every controller that gets here,
2491 * it should be harmless. The alternative is to not work at all.
2492 */
2493 pm_runtime_allow(&data->udev->dev);
2494
2495 ret = pm_runtime_suspend(&data->udev->dev);
2496 if (ret >= 0)
2497 msleep(200);
2498 else
2499 bt_dev_warn(hdev, "CSR: Couldn't suspend the device for our Barrot 8041a02 receive-issue workaround");
2500
2501 pm_runtime_forbid(&data->udev->dev);
2502
2503 device_set_wakeup_capable(&data->udev->dev, false);
2504
2505 /* Re-enable autosuspend if this was requested */
2506 if (enable_autosuspend)
2507 usb_enable_autosuspend(data->udev);
2508 }
2509
2510 kfree_skb(skb);
2511
2512 return 0;
2513 }
2514
inject_cmd_complete(struct hci_dev * hdev,__u16 opcode)2515 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
2516 {
2517 struct sk_buff *skb;
2518 struct hci_event_hdr *hdr;
2519 struct hci_ev_cmd_complete *evt;
2520
2521 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL);
2522 if (!skb)
2523 return -ENOMEM;
2524
2525 hdr = skb_put(skb, sizeof(*hdr));
2526 hdr->evt = HCI_EV_CMD_COMPLETE;
2527 hdr->plen = sizeof(*evt) + 1;
2528
2529 evt = skb_put(skb, sizeof(*evt));
2530 evt->ncmd = 0x01;
2531 evt->opcode = cpu_to_le16(opcode);
2532
2533 skb_put_u8(skb, 0x00);
2534
2535 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
2536
2537 return hci_recv_frame(hdev, skb);
2538 }
2539
btusb_recv_bulk_intel(struct btusb_data * data,void * buffer,int count)2540 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
2541 int count)
2542 {
2543 struct hci_dev *hdev = data->hdev;
2544
2545 /* When the device is in bootloader mode, then it can send
2546 * events via the bulk endpoint. These events are treated the
2547 * same way as the ones received from the interrupt endpoint.
2548 */
2549 if (btintel_test_flag(hdev, INTEL_BOOTLOADER))
2550 return btusb_recv_intr(data, buffer, count);
2551
2552 return btusb_recv_bulk(data, buffer, count);
2553 }
2554
btusb_send_frame_intel(struct hci_dev * hdev,struct sk_buff * skb)2555 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
2556 {
2557 struct urb *urb;
2558
2559 BT_DBG("%s", hdev->name);
2560
2561 switch (hci_skb_pkt_type(skb)) {
2562 case HCI_COMMAND_PKT:
2563 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) {
2564 struct hci_command_hdr *cmd = (void *)skb->data;
2565 __u16 opcode = le16_to_cpu(cmd->opcode);
2566
2567 /* When in bootloader mode and the command 0xfc09
2568 * is received, it needs to be send down the
2569 * bulk endpoint. So allocate a bulk URB instead.
2570 */
2571 if (opcode == 0xfc09)
2572 urb = alloc_bulk_urb(hdev, skb);
2573 else
2574 urb = alloc_ctrl_urb(hdev, skb);
2575
2576 /* When the 0xfc01 command is issued to boot into
2577 * the operational firmware, it will actually not
2578 * send a command complete event. To keep the flow
2579 * control working inject that event here.
2580 */
2581 if (opcode == 0xfc01)
2582 inject_cmd_complete(hdev, opcode);
2583 } else {
2584 urb = alloc_ctrl_urb(hdev, skb);
2585 }
2586 if (IS_ERR(urb))
2587 return PTR_ERR(urb);
2588
2589 hdev->stat.cmd_tx++;
2590 return submit_or_queue_tx_urb(hdev, urb);
2591
2592 case HCI_ACLDATA_PKT:
2593 urb = alloc_bulk_urb(hdev, skb);
2594 if (IS_ERR(urb))
2595 return PTR_ERR(urb);
2596
2597 hdev->stat.acl_tx++;
2598 return submit_or_queue_tx_urb(hdev, urb);
2599
2600 case HCI_SCODATA_PKT:
2601 if (hci_conn_num(hdev, SCO_LINK) < 1)
2602 return -ENODEV;
2603
2604 urb = alloc_isoc_urb(hdev, skb);
2605 if (IS_ERR(urb))
2606 return PTR_ERR(urb);
2607
2608 hdev->stat.sco_tx++;
2609 return submit_tx_urb(hdev, urb);
2610
2611 case HCI_ISODATA_PKT:
2612 urb = alloc_bulk_urb(hdev, skb);
2613 if (IS_ERR(urb))
2614 return PTR_ERR(urb);
2615
2616 return submit_or_queue_tx_urb(hdev, urb);
2617 }
2618
2619 return -EILSEQ;
2620 }
2621
btusb_setup_realtek(struct hci_dev * hdev)2622 static int btusb_setup_realtek(struct hci_dev *hdev)
2623 {
2624 struct btusb_data *data = hci_get_drvdata(hdev);
2625 int ret;
2626
2627 ret = btrtl_setup_realtek(hdev);
2628
2629 if (btrealtek_test_flag(data->hdev, REALTEK_ALT6_CONTINUOUS_TX_CHIP))
2630 set_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags);
2631
2632 return ret;
2633 }
2634
btusb_recv_event_realtek(struct hci_dev * hdev,struct sk_buff * skb)2635 static int btusb_recv_event_realtek(struct hci_dev *hdev, struct sk_buff *skb)
2636 {
2637 if (skb->data[0] == HCI_VENDOR_PKT && skb->data[2] == RTK_SUB_EVENT_CODE_COREDUMP) {
2638 struct rtk_dev_coredump_hdr hdr = {
2639 .code = RTK_DEVCOREDUMP_CODE_MEMDUMP,
2640 };
2641
2642 bt_dev_dbg(hdev, "RTL: received coredump vendor evt, len %u",
2643 skb->len);
2644
2645 btusb_rtl_alloc_devcoredump(hdev, &hdr, skb->data, skb->len);
2646 kfree_skb(skb);
2647
2648 return 0;
2649 }
2650
2651 return hci_recv_frame(hdev, skb);
2652 }
2653
2654 /* UHW CR mapping */
2655 #define MTK_BT_MISC 0x70002510
2656 #define MTK_BT_SUBSYS_RST 0x70002610
2657 #define MTK_UDMA_INT_STA_BT 0x74000024
2658 #define MTK_UDMA_INT_STA_BT1 0x74000308
2659 #define MTK_BT_WDT_STATUS 0x740003A0
2660 #define MTK_EP_RST_OPT 0x74011890
2661 #define MTK_EP_RST_IN_OUT_OPT 0x00010001
2662 #define MTK_BT_RST_DONE 0x00000100
2663 #define MTK_BT_RESET_REG_CONNV3 0x70028610
2664 #define MTK_BT_READ_DEV_ID 0x70010200
2665
2666
btusb_mtk_wmt_recv(struct urb * urb)2667 static void btusb_mtk_wmt_recv(struct urb *urb)
2668 {
2669 struct hci_dev *hdev = urb->context;
2670 struct btusb_data *data = hci_get_drvdata(hdev);
2671 struct sk_buff *skb;
2672 int err;
2673
2674 if (urb->status == 0 && urb->actual_length > 0) {
2675 hdev->stat.byte_rx += urb->actual_length;
2676
2677 /* WMT event shouldn't be fragmented and the size should be
2678 * less than HCI_WMT_MAX_EVENT_SIZE.
2679 */
2680 skb = bt_skb_alloc(HCI_WMT_MAX_EVENT_SIZE, GFP_ATOMIC);
2681 if (!skb) {
2682 hdev->stat.err_rx++;
2683 kfree(urb->setup_packet);
2684 return;
2685 }
2686
2687 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
2688 skb_put_data(skb, urb->transfer_buffer, urb->actual_length);
2689
2690 /* When someone waits for the WMT event, the skb is being cloned
2691 * and being processed the events from there then.
2692 */
2693 if (test_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags)) {
2694 data->evt_skb = skb_clone(skb, GFP_ATOMIC);
2695 if (!data->evt_skb) {
2696 kfree_skb(skb);
2697 kfree(urb->setup_packet);
2698 return;
2699 }
2700 }
2701
2702 err = hci_recv_frame(hdev, skb);
2703 if (err < 0) {
2704 kfree_skb(data->evt_skb);
2705 data->evt_skb = NULL;
2706 kfree(urb->setup_packet);
2707 return;
2708 }
2709
2710 if (test_and_clear_bit(BTUSB_TX_WAIT_VND_EVT,
2711 &data->flags)) {
2712 /* Barrier to sync with other CPUs */
2713 smp_mb__after_atomic();
2714 wake_up_bit(&data->flags,
2715 BTUSB_TX_WAIT_VND_EVT);
2716 }
2717 kfree(urb->setup_packet);
2718 return;
2719 } else if (urb->status == -ENOENT) {
2720 /* Avoid suspend failed when usb_kill_urb */
2721 return;
2722 }
2723
2724 usb_mark_last_busy(data->udev);
2725
2726 /* The URB complete handler is still called with urb->actual_length = 0
2727 * when the event is not available, so we should keep re-submitting
2728 * URB until WMT event returns, Also, It's necessary to wait some time
2729 * between the two consecutive control URBs to relax the target device
2730 * to generate the event. Otherwise, the WMT event cannot return from
2731 * the device successfully.
2732 */
2733 udelay(500);
2734
2735 usb_anchor_urb(urb, &data->ctrl_anchor);
2736 err = usb_submit_urb(urb, GFP_ATOMIC);
2737 if (err < 0) {
2738 kfree(urb->setup_packet);
2739 /* -EPERM: urb is being killed;
2740 * -ENODEV: device got disconnected
2741 */
2742 if (err != -EPERM && err != -ENODEV)
2743 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
2744 urb, -err);
2745 usb_unanchor_urb(urb);
2746 }
2747 }
2748
btusb_mtk_submit_wmt_recv_urb(struct hci_dev * hdev)2749 static int btusb_mtk_submit_wmt_recv_urb(struct hci_dev *hdev)
2750 {
2751 struct btusb_data *data = hci_get_drvdata(hdev);
2752 struct usb_ctrlrequest *dr;
2753 unsigned char *buf;
2754 int err, size = 64;
2755 unsigned int pipe;
2756 struct urb *urb;
2757
2758 urb = usb_alloc_urb(0, GFP_KERNEL);
2759 if (!urb)
2760 return -ENOMEM;
2761
2762 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
2763 if (!dr) {
2764 usb_free_urb(urb);
2765 return -ENOMEM;
2766 }
2767
2768 dr->bRequestType = USB_TYPE_VENDOR | USB_DIR_IN;
2769 dr->bRequest = 1;
2770 dr->wIndex = cpu_to_le16(0);
2771 dr->wValue = cpu_to_le16(48);
2772 dr->wLength = cpu_to_le16(size);
2773
2774 buf = kmalloc(size, GFP_KERNEL);
2775 if (!buf) {
2776 kfree(dr);
2777 usb_free_urb(urb);
2778 return -ENOMEM;
2779 }
2780
2781 pipe = usb_rcvctrlpipe(data->udev, 0);
2782
2783 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
2784 buf, size, btusb_mtk_wmt_recv, hdev);
2785
2786 urb->transfer_flags |= URB_FREE_BUFFER;
2787
2788 usb_anchor_urb(urb, &data->ctrl_anchor);
2789 err = usb_submit_urb(urb, GFP_KERNEL);
2790 if (err < 0) {
2791 if (err != -EPERM && err != -ENODEV)
2792 bt_dev_err(hdev, "urb %p submission failed (%d)",
2793 urb, -err);
2794 usb_unanchor_urb(urb);
2795 }
2796
2797 usb_free_urb(urb);
2798
2799 return err;
2800 }
2801
btusb_mtk_hci_wmt_sync(struct hci_dev * hdev,struct btmtk_hci_wmt_params * wmt_params)2802 static int btusb_mtk_hci_wmt_sync(struct hci_dev *hdev,
2803 struct btmtk_hci_wmt_params *wmt_params)
2804 {
2805 struct btusb_data *data = hci_get_drvdata(hdev);
2806 struct btmtk_hci_wmt_evt_funcc *wmt_evt_funcc;
2807 u32 hlen, status = BTMTK_WMT_INVALID;
2808 struct btmtk_hci_wmt_evt *wmt_evt;
2809 struct btmtk_hci_wmt_cmd *wc;
2810 struct btmtk_wmt_hdr *hdr;
2811 int err;
2812
2813 /* Send the WMT command and wait until the WMT event returns */
2814 hlen = sizeof(*hdr) + wmt_params->dlen;
2815 if (hlen > 255)
2816 return -EINVAL;
2817
2818 wc = kzalloc(hlen, GFP_KERNEL);
2819 if (!wc)
2820 return -ENOMEM;
2821
2822 hdr = &wc->hdr;
2823 hdr->dir = 1;
2824 hdr->op = wmt_params->op;
2825 hdr->dlen = cpu_to_le16(wmt_params->dlen + 1);
2826 hdr->flag = wmt_params->flag;
2827 memcpy(wc->data, wmt_params->data, wmt_params->dlen);
2828
2829 set_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2830
2831 /* WMT cmd/event doesn't follow up the generic HCI cmd/event handling,
2832 * it needs constantly polling control pipe until the host received the
2833 * WMT event, thus, we should require to specifically acquire PM counter
2834 * on the USB to prevent the interface from entering auto suspended
2835 * while WMT cmd/event in progress.
2836 */
2837 err = usb_autopm_get_interface(data->intf);
2838 if (err < 0)
2839 goto err_free_wc;
2840
2841 err = __hci_cmd_send(hdev, 0xfc6f, hlen, wc);
2842
2843 if (err < 0) {
2844 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2845 usb_autopm_put_interface(data->intf);
2846 goto err_free_wc;
2847 }
2848
2849 /* Submit control IN URB on demand to process the WMT event */
2850 err = btusb_mtk_submit_wmt_recv_urb(hdev);
2851
2852 usb_autopm_put_interface(data->intf);
2853
2854 if (err < 0)
2855 goto err_free_wc;
2856
2857 /* The vendor specific WMT commands are all answered by a vendor
2858 * specific event and will have the Command Status or Command
2859 * Complete as with usual HCI command flow control.
2860 *
2861 * After sending the command, wait for BTUSB_TX_WAIT_VND_EVT
2862 * state to be cleared. The driver specific event receive routine
2863 * will clear that state and with that indicate completion of the
2864 * WMT command.
2865 */
2866 err = wait_on_bit_timeout(&data->flags, BTUSB_TX_WAIT_VND_EVT,
2867 TASK_INTERRUPTIBLE, HCI_INIT_TIMEOUT);
2868 if (err == -EINTR) {
2869 bt_dev_err(hdev, "Execution of wmt command interrupted");
2870 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2871 goto err_free_wc;
2872 }
2873
2874 if (err) {
2875 bt_dev_err(hdev, "Execution of wmt command timed out");
2876 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2877 err = -ETIMEDOUT;
2878 goto err_free_wc;
2879 }
2880
2881 if (data->evt_skb == NULL)
2882 goto err_free_wc;
2883
2884 /* Parse and handle the return WMT event */
2885 wmt_evt = (struct btmtk_hci_wmt_evt *)data->evt_skb->data;
2886 if (wmt_evt->whdr.op != hdr->op) {
2887 bt_dev_err(hdev, "Wrong op received %d expected %d",
2888 wmt_evt->whdr.op, hdr->op);
2889 err = -EIO;
2890 goto err_free_skb;
2891 }
2892
2893 switch (wmt_evt->whdr.op) {
2894 case BTMTK_WMT_SEMAPHORE:
2895 if (wmt_evt->whdr.flag == 2)
2896 status = BTMTK_WMT_PATCH_UNDONE;
2897 else
2898 status = BTMTK_WMT_PATCH_DONE;
2899 break;
2900 case BTMTK_WMT_FUNC_CTRL:
2901 wmt_evt_funcc = (struct btmtk_hci_wmt_evt_funcc *)wmt_evt;
2902 if (be16_to_cpu(wmt_evt_funcc->status) == 0x404)
2903 status = BTMTK_WMT_ON_DONE;
2904 else if (be16_to_cpu(wmt_evt_funcc->status) == 0x420)
2905 status = BTMTK_WMT_ON_PROGRESS;
2906 else
2907 status = BTMTK_WMT_ON_UNDONE;
2908 break;
2909 case BTMTK_WMT_PATCH_DWNLD:
2910 if (wmt_evt->whdr.flag == 2)
2911 status = BTMTK_WMT_PATCH_DONE;
2912 else if (wmt_evt->whdr.flag == 1)
2913 status = BTMTK_WMT_PATCH_PROGRESS;
2914 else
2915 status = BTMTK_WMT_PATCH_UNDONE;
2916 break;
2917 }
2918
2919 if (wmt_params->status)
2920 *wmt_params->status = status;
2921
2922 err_free_skb:
2923 kfree_skb(data->evt_skb);
2924 data->evt_skb = NULL;
2925 err_free_wc:
2926 kfree(wc);
2927 return err;
2928 }
2929
btusb_mtk_func_query(struct hci_dev * hdev)2930 static int btusb_mtk_func_query(struct hci_dev *hdev)
2931 {
2932 struct btmtk_hci_wmt_params wmt_params;
2933 int status, err;
2934 u8 param = 0;
2935
2936 /* Query whether the function is enabled */
2937 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
2938 wmt_params.flag = 4;
2939 wmt_params.dlen = sizeof(param);
2940 wmt_params.data = ¶m;
2941 wmt_params.status = &status;
2942
2943 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2944 if (err < 0) {
2945 bt_dev_err(hdev, "Failed to query function status (%d)", err);
2946 return err;
2947 }
2948
2949 return status;
2950 }
2951
btusb_mtk_uhw_reg_write(struct btusb_data * data,u32 reg,u32 val)2952 static int btusb_mtk_uhw_reg_write(struct btusb_data *data, u32 reg, u32 val)
2953 {
2954 struct hci_dev *hdev = data->hdev;
2955 int pipe, err;
2956 void *buf;
2957
2958 buf = kzalloc(4, GFP_KERNEL);
2959 if (!buf)
2960 return -ENOMEM;
2961
2962 put_unaligned_le32(val, buf);
2963
2964 pipe = usb_sndctrlpipe(data->udev, 0);
2965 err = usb_control_msg(data->udev, pipe, 0x02,
2966 0x5E,
2967 reg >> 16, reg & 0xffff,
2968 buf, 4, USB_CTRL_SET_TIMEOUT);
2969 if (err < 0) {
2970 bt_dev_err(hdev, "Failed to write uhw reg(%d)", err);
2971 goto err_free_buf;
2972 }
2973
2974 err_free_buf:
2975 kfree(buf);
2976
2977 return err;
2978 }
2979
btusb_mtk_uhw_reg_read(struct btusb_data * data,u32 reg,u32 * val)2980 static int btusb_mtk_uhw_reg_read(struct btusb_data *data, u32 reg, u32 *val)
2981 {
2982 struct hci_dev *hdev = data->hdev;
2983 int pipe, err;
2984 void *buf;
2985
2986 buf = kzalloc(4, GFP_KERNEL);
2987 if (!buf)
2988 return -ENOMEM;
2989
2990 pipe = usb_rcvctrlpipe(data->udev, 0);
2991 err = usb_control_msg(data->udev, pipe, 0x01,
2992 0xDE,
2993 reg >> 16, reg & 0xffff,
2994 buf, 4, USB_CTRL_SET_TIMEOUT);
2995 if (err < 0) {
2996 bt_dev_err(hdev, "Failed to read uhw reg(%d)", err);
2997 goto err_free_buf;
2998 }
2999
3000 *val = get_unaligned_le32(buf);
3001 bt_dev_dbg(hdev, "reg=%x, value=0x%08x", reg, *val);
3002
3003 err_free_buf:
3004 kfree(buf);
3005
3006 return err;
3007 }
3008
btusb_mtk_reg_read(struct btusb_data * data,u32 reg,u32 * val)3009 static int btusb_mtk_reg_read(struct btusb_data *data, u32 reg, u32 *val)
3010 {
3011 int pipe, err, size = sizeof(u32);
3012 void *buf;
3013
3014 buf = kzalloc(size, GFP_KERNEL);
3015 if (!buf)
3016 return -ENOMEM;
3017
3018 pipe = usb_rcvctrlpipe(data->udev, 0);
3019 err = usb_control_msg(data->udev, pipe, 0x63,
3020 USB_TYPE_VENDOR | USB_DIR_IN,
3021 reg >> 16, reg & 0xffff,
3022 buf, size, USB_CTRL_SET_TIMEOUT);
3023 if (err < 0)
3024 goto err_free_buf;
3025
3026 *val = get_unaligned_le32(buf);
3027
3028 err_free_buf:
3029 kfree(buf);
3030
3031 return err;
3032 }
3033
btusb_mtk_id_get(struct btusb_data * data,u32 reg,u32 * id)3034 static int btusb_mtk_id_get(struct btusb_data *data, u32 reg, u32 *id)
3035 {
3036 return btusb_mtk_reg_read(data, reg, id);
3037 }
3038
btusb_mtk_reset_done(struct hci_dev * hdev)3039 static u32 btusb_mtk_reset_done(struct hci_dev *hdev)
3040 {
3041 struct btusb_data *data = hci_get_drvdata(hdev);
3042 u32 val = 0;
3043
3044 btusb_mtk_uhw_reg_read(data, MTK_BT_MISC, &val);
3045
3046 return val & MTK_BT_RST_DONE;
3047 }
3048
btusb_mtk_reset(struct hci_dev * hdev,void * rst_data)3049 static int btusb_mtk_reset(struct hci_dev *hdev, void *rst_data)
3050 {
3051 struct btusb_data *data = hci_get_drvdata(hdev);
3052 struct btmediatek_data *mediatek;
3053 u32 val;
3054 int err;
3055
3056 /* It's MediaTek specific bluetooth reset mechanism via USB */
3057 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
3058 bt_dev_err(hdev, "last reset failed? Not resetting again");
3059 return -EBUSY;
3060 }
3061
3062 err = usb_autopm_get_interface(data->intf);
3063 if (err < 0)
3064 return err;
3065
3066 btusb_stop_traffic(data);
3067 usb_kill_anchored_urbs(&data->tx_anchor);
3068 mediatek = hci_get_priv(hdev);
3069
3070 if (mediatek->dev_id == 0x7925) {
3071 btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, &val);
3072 val |= (1 << 5);
3073 btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val);
3074 btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, &val);
3075 val &= 0xFFFF00FF;
3076 val |= (1 << 13);
3077 btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val);
3078 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, 0x00010001);
3079 btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, &val);
3080 val |= (1 << 0);
3081 btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val);
3082 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT, 0x000000FF);
3083 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT, &val);
3084 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT1, 0x000000FF);
3085 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT1, &val);
3086 msleep(100);
3087 } else {
3088 /* It's Device EndPoint Reset Option Register */
3089 bt_dev_dbg(hdev, "Initiating reset mechanism via uhw");
3090 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, MTK_EP_RST_IN_OUT_OPT);
3091 btusb_mtk_uhw_reg_read(data, MTK_BT_WDT_STATUS, &val);
3092
3093 /* Reset the bluetooth chip via USB interface. */
3094 btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, 1);
3095 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT, 0x000000FF);
3096 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT, &val);
3097 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT1, 0x000000FF);
3098 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT1, &val);
3099 /* MT7921 need to delay 20ms between toggle reset bit */
3100 msleep(20);
3101 btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, 0);
3102 btusb_mtk_uhw_reg_read(data, MTK_BT_SUBSYS_RST, &val);
3103 }
3104
3105 err = readx_poll_timeout(btusb_mtk_reset_done, hdev, val,
3106 val & MTK_BT_RST_DONE, 20000, 1000000);
3107 if (err < 0)
3108 bt_dev_err(hdev, "Reset timeout");
3109
3110 btusb_mtk_id_get(data, 0x70010200, &val);
3111 if (!val)
3112 bt_dev_err(hdev, "Can't get device id, subsys reset fail.");
3113
3114 usb_queue_reset_device(data->intf);
3115
3116 clear_bit(BTUSB_HW_RESET_ACTIVE, &data->flags);
3117
3118 return err;
3119 }
3120
btusb_mtk_setup(struct hci_dev * hdev)3121 static int btusb_mtk_setup(struct hci_dev *hdev)
3122 {
3123 struct btusb_data *data = hci_get_drvdata(hdev);
3124 struct btmtk_hci_wmt_params wmt_params;
3125 ktime_t calltime, delta, rettime;
3126 struct btmtk_tci_sleep tci_sleep;
3127 unsigned long long duration;
3128 struct sk_buff *skb;
3129 const char *fwname;
3130 int err, status;
3131 u32 dev_id = 0;
3132 char fw_bin_name[64];
3133 u32 fw_version = 0;
3134 u8 param;
3135 struct btmediatek_data *mediatek;
3136
3137 calltime = ktime_get();
3138
3139 err = btusb_mtk_id_get(data, 0x80000008, &dev_id);
3140 if (err < 0) {
3141 bt_dev_err(hdev, "Failed to get device id (%d)", err);
3142 return err;
3143 }
3144
3145 if (!dev_id || dev_id != 0x7663) {
3146 err = btusb_mtk_id_get(data, 0x70010200, &dev_id);
3147 if (err < 0) {
3148 bt_dev_err(hdev, "Failed to get device id (%d)", err);
3149 return err;
3150 }
3151 err = btusb_mtk_id_get(data, 0x80021004, &fw_version);
3152 if (err < 0) {
3153 bt_dev_err(hdev, "Failed to get fw version (%d)", err);
3154 return err;
3155 }
3156 }
3157
3158 mediatek = hci_get_priv(hdev);
3159 mediatek->dev_id = dev_id;
3160 mediatek->reset_sync = btusb_mtk_reset;
3161
3162 err = btmtk_register_coredump(hdev, btusb_driver.name, fw_version);
3163 if (err < 0)
3164 bt_dev_err(hdev, "Failed to register coredump (%d)", err);
3165
3166 switch (dev_id) {
3167 case 0x7663:
3168 fwname = FIRMWARE_MT7663;
3169 break;
3170 case 0x7668:
3171 fwname = FIRMWARE_MT7668;
3172 break;
3173 case 0x7922:
3174 case 0x7961:
3175 case 0x7925:
3176 if (dev_id == 0x7925)
3177 snprintf(fw_bin_name, sizeof(fw_bin_name),
3178 "mediatek/mt%04x/BT_RAM_CODE_MT%04x_1_%x_hdr.bin",
3179 dev_id & 0xffff, dev_id & 0xffff, (fw_version & 0xff) + 1);
3180 else
3181 snprintf(fw_bin_name, sizeof(fw_bin_name),
3182 "mediatek/BT_RAM_CODE_MT%04x_1_%x_hdr.bin",
3183 dev_id & 0xffff, (fw_version & 0xff) + 1);
3184
3185 err = btmtk_setup_firmware_79xx(hdev, fw_bin_name,
3186 btusb_mtk_hci_wmt_sync);
3187 if (err < 0) {
3188 bt_dev_err(hdev, "Failed to set up firmware (%d)", err);
3189 return err;
3190 }
3191
3192 /* It's Device EndPoint Reset Option Register */
3193 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, MTK_EP_RST_IN_OUT_OPT);
3194
3195 /* Enable Bluetooth protocol */
3196 param = 1;
3197 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3198 wmt_params.flag = 0;
3199 wmt_params.dlen = sizeof(param);
3200 wmt_params.data = ¶m;
3201 wmt_params.status = NULL;
3202
3203 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3204 if (err < 0) {
3205 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3206 return err;
3207 }
3208
3209 hci_set_msft_opcode(hdev, 0xFD30);
3210 hci_set_aosp_capable(hdev);
3211 goto done;
3212 default:
3213 bt_dev_err(hdev, "Unsupported hardware variant (%08x)",
3214 dev_id);
3215 return -ENODEV;
3216 }
3217
3218 /* Query whether the firmware is already download */
3219 wmt_params.op = BTMTK_WMT_SEMAPHORE;
3220 wmt_params.flag = 1;
3221 wmt_params.dlen = 0;
3222 wmt_params.data = NULL;
3223 wmt_params.status = &status;
3224
3225 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3226 if (err < 0) {
3227 bt_dev_err(hdev, "Failed to query firmware status (%d)", err);
3228 return err;
3229 }
3230
3231 if (status == BTMTK_WMT_PATCH_DONE) {
3232 bt_dev_info(hdev, "firmware already downloaded");
3233 goto ignore_setup_fw;
3234 }
3235
3236 /* Setup a firmware which the device definitely requires */
3237 err = btmtk_setup_firmware(hdev, fwname,
3238 btusb_mtk_hci_wmt_sync);
3239 if (err < 0)
3240 return err;
3241
3242 ignore_setup_fw:
3243 err = readx_poll_timeout(btusb_mtk_func_query, hdev, status,
3244 status < 0 || status != BTMTK_WMT_ON_PROGRESS,
3245 2000, 5000000);
3246 /* -ETIMEDOUT happens */
3247 if (err < 0)
3248 return err;
3249
3250 /* The other errors happen in btusb_mtk_func_query */
3251 if (status < 0)
3252 return status;
3253
3254 if (status == BTMTK_WMT_ON_DONE) {
3255 bt_dev_info(hdev, "function already on");
3256 goto ignore_func_on;
3257 }
3258
3259 /* Enable Bluetooth protocol */
3260 param = 1;
3261 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3262 wmt_params.flag = 0;
3263 wmt_params.dlen = sizeof(param);
3264 wmt_params.data = ¶m;
3265 wmt_params.status = NULL;
3266
3267 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3268 if (err < 0) {
3269 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3270 return err;
3271 }
3272
3273 ignore_func_on:
3274 /* Apply the low power environment setup */
3275 tci_sleep.mode = 0x5;
3276 tci_sleep.duration = cpu_to_le16(0x640);
3277 tci_sleep.host_duration = cpu_to_le16(0x640);
3278 tci_sleep.host_wakeup_pin = 0;
3279 tci_sleep.time_compensation = 0;
3280
3281 skb = __hci_cmd_sync(hdev, 0xfc7a, sizeof(tci_sleep), &tci_sleep,
3282 HCI_INIT_TIMEOUT);
3283 if (IS_ERR(skb)) {
3284 err = PTR_ERR(skb);
3285 bt_dev_err(hdev, "Failed to apply low power setting (%d)", err);
3286 return err;
3287 }
3288 kfree_skb(skb);
3289
3290 done:
3291 rettime = ktime_get();
3292 delta = ktime_sub(rettime, calltime);
3293 duration = (unsigned long long)ktime_to_ns(delta) >> 10;
3294
3295 bt_dev_info(hdev, "Device setup in %llu usecs", duration);
3296
3297 return 0;
3298 }
3299
btusb_mtk_shutdown(struct hci_dev * hdev)3300 static int btusb_mtk_shutdown(struct hci_dev *hdev)
3301 {
3302 struct btmtk_hci_wmt_params wmt_params;
3303 u8 param = 0;
3304 int err;
3305
3306 /* Disable the device */
3307 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3308 wmt_params.flag = 0;
3309 wmt_params.dlen = sizeof(param);
3310 wmt_params.data = ¶m;
3311 wmt_params.status = NULL;
3312
3313 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3314 if (err < 0) {
3315 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3316 return err;
3317 }
3318
3319 return 0;
3320 }
3321
btusb_recv_acl_mtk(struct hci_dev * hdev,struct sk_buff * skb)3322 static int btusb_recv_acl_mtk(struct hci_dev *hdev, struct sk_buff *skb)
3323 {
3324 struct btusb_data *data = hci_get_drvdata(hdev);
3325 u16 handle = le16_to_cpu(hci_acl_hdr(skb)->handle);
3326
3327 switch (handle) {
3328 case 0xfc6f: /* Firmware dump from device */
3329 /* When the firmware hangs, the device can no longer
3330 * suspend and thus disable auto-suspend.
3331 */
3332 usb_disable_autosuspend(data->udev);
3333
3334 /* We need to forward the diagnostic packet to userspace daemon
3335 * for backward compatibility, so we have to clone the packet
3336 * extraly for the in-kernel coredump support.
3337 */
3338 if (IS_ENABLED(CONFIG_DEV_COREDUMP)) {
3339 struct sk_buff *skb_cd = skb_clone(skb, GFP_ATOMIC);
3340
3341 if (skb_cd)
3342 btmtk_process_coredump(hdev, skb_cd);
3343 }
3344
3345 fallthrough;
3346 case 0x05ff: /* Firmware debug logging 1 */
3347 case 0x05fe: /* Firmware debug logging 2 */
3348 return hci_recv_diag(hdev, skb);
3349 }
3350
3351 return hci_recv_frame(hdev, skb);
3352 }
3353
3354 #ifdef CONFIG_PM
3355 /* Configure an out-of-band gpio as wake-up pin, if specified in device tree */
marvell_config_oob_wake(struct hci_dev * hdev)3356 static int marvell_config_oob_wake(struct hci_dev *hdev)
3357 {
3358 struct sk_buff *skb;
3359 struct btusb_data *data = hci_get_drvdata(hdev);
3360 struct device *dev = &data->udev->dev;
3361 u16 pin, gap, opcode;
3362 int ret;
3363 u8 cmd[5];
3364
3365 /* Move on if no wakeup pin specified */
3366 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) ||
3367 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap))
3368 return 0;
3369
3370 /* Vendor specific command to configure a GPIO as wake-up pin */
3371 opcode = hci_opcode_pack(0x3F, 0x59);
3372 cmd[0] = opcode & 0xFF;
3373 cmd[1] = opcode >> 8;
3374 cmd[2] = 2; /* length of parameters that follow */
3375 cmd[3] = pin;
3376 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */
3377
3378 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
3379 if (!skb) {
3380 bt_dev_err(hdev, "%s: No memory", __func__);
3381 return -ENOMEM;
3382 }
3383
3384 skb_put_data(skb, cmd, sizeof(cmd));
3385 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT;
3386
3387 ret = btusb_send_frame(hdev, skb);
3388 if (ret) {
3389 bt_dev_err(hdev, "%s: configuration failed", __func__);
3390 kfree_skb(skb);
3391 return ret;
3392 }
3393
3394 return 0;
3395 }
3396 #endif
3397
btusb_set_bdaddr_marvell(struct hci_dev * hdev,const bdaddr_t * bdaddr)3398 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
3399 const bdaddr_t *bdaddr)
3400 {
3401 struct sk_buff *skb;
3402 u8 buf[8];
3403 long ret;
3404
3405 buf[0] = 0xfe;
3406 buf[1] = sizeof(bdaddr_t);
3407 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
3408
3409 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
3410 if (IS_ERR(skb)) {
3411 ret = PTR_ERR(skb);
3412 bt_dev_err(hdev, "changing Marvell device address failed (%ld)",
3413 ret);
3414 return ret;
3415 }
3416 kfree_skb(skb);
3417
3418 return 0;
3419 }
3420
btusb_set_bdaddr_ath3012(struct hci_dev * hdev,const bdaddr_t * bdaddr)3421 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
3422 const bdaddr_t *bdaddr)
3423 {
3424 struct sk_buff *skb;
3425 u8 buf[10];
3426 long ret;
3427
3428 buf[0] = 0x01;
3429 buf[1] = 0x01;
3430 buf[2] = 0x00;
3431 buf[3] = sizeof(bdaddr_t);
3432 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
3433
3434 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
3435 if (IS_ERR(skb)) {
3436 ret = PTR_ERR(skb);
3437 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
3438 return ret;
3439 }
3440 kfree_skb(skb);
3441
3442 return 0;
3443 }
3444
btusb_set_bdaddr_wcn6855(struct hci_dev * hdev,const bdaddr_t * bdaddr)3445 static int btusb_set_bdaddr_wcn6855(struct hci_dev *hdev,
3446 const bdaddr_t *bdaddr)
3447 {
3448 struct sk_buff *skb;
3449 u8 buf[6];
3450 long ret;
3451
3452 memcpy(buf, bdaddr, sizeof(bdaddr_t));
3453
3454 skb = __hci_cmd_sync_ev(hdev, 0xfc14, sizeof(buf), buf,
3455 HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT);
3456 if (IS_ERR(skb)) {
3457 ret = PTR_ERR(skb);
3458 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
3459 return ret;
3460 }
3461 kfree_skb(skb);
3462
3463 return 0;
3464 }
3465
3466 #define QCA_MEMDUMP_ACL_HANDLE 0x2EDD
3467 #define QCA_MEMDUMP_SIZE_MAX 0x100000
3468 #define QCA_MEMDUMP_VSE_CLASS 0x01
3469 #define QCA_MEMDUMP_MSG_TYPE 0x08
3470 #define QCA_MEMDUMP_PKT_SIZE 248
3471 #define QCA_LAST_SEQUENCE_NUM 0xffff
3472
3473 struct qca_dump_hdr {
3474 u8 vse_class;
3475 u8 msg_type;
3476 __le16 seqno;
3477 u8 reserved;
3478 union {
3479 u8 data[0];
3480 struct {
3481 __le32 ram_dump_size;
3482 u8 data0[0];
3483 } __packed;
3484 };
3485 } __packed;
3486
3487
btusb_dump_hdr_qca(struct hci_dev * hdev,struct sk_buff * skb)3488 static void btusb_dump_hdr_qca(struct hci_dev *hdev, struct sk_buff *skb)
3489 {
3490 char buf[128];
3491 struct btusb_data *btdata = hci_get_drvdata(hdev);
3492
3493 snprintf(buf, sizeof(buf), "Controller Name: 0x%x\n",
3494 btdata->qca_dump.controller_id);
3495 skb_put_data(skb, buf, strlen(buf));
3496
3497 snprintf(buf, sizeof(buf), "Firmware Version: 0x%x\n",
3498 btdata->qca_dump.fw_version);
3499 skb_put_data(skb, buf, strlen(buf));
3500
3501 snprintf(buf, sizeof(buf), "Driver: %s\nVendor: qca\n",
3502 btusb_driver.name);
3503 skb_put_data(skb, buf, strlen(buf));
3504
3505 snprintf(buf, sizeof(buf), "VID: 0x%x\nPID:0x%x\n",
3506 btdata->qca_dump.id_vendor, btdata->qca_dump.id_product);
3507 skb_put_data(skb, buf, strlen(buf));
3508
3509 snprintf(buf, sizeof(buf), "Lmp Subversion: 0x%x\n",
3510 hdev->lmp_subver);
3511 skb_put_data(skb, buf, strlen(buf));
3512 }
3513
btusb_coredump_qca(struct hci_dev * hdev)3514 static void btusb_coredump_qca(struct hci_dev *hdev)
3515 {
3516 int err;
3517 static const u8 param[] = { 0x26 };
3518
3519 err = __hci_cmd_send(hdev, 0xfc0c, 1, param);
3520 if (err < 0)
3521 bt_dev_err(hdev, "%s: triggle crash failed (%d)", __func__, err);
3522 }
3523
3524 /*
3525 * ==0: not a dump pkt.
3526 * < 0: fails to handle a dump pkt
3527 * > 0: otherwise.
3528 */
handle_dump_pkt_qca(struct hci_dev * hdev,struct sk_buff * skb)3529 static int handle_dump_pkt_qca(struct hci_dev *hdev, struct sk_buff *skb)
3530 {
3531 int ret = 1;
3532 u8 pkt_type;
3533 u8 *sk_ptr;
3534 unsigned int sk_len;
3535 u16 seqno;
3536 u32 dump_size;
3537
3538 struct hci_event_hdr *event_hdr;
3539 struct hci_acl_hdr *acl_hdr;
3540 struct qca_dump_hdr *dump_hdr;
3541 struct btusb_data *btdata = hci_get_drvdata(hdev);
3542 struct usb_device *udev = btdata->udev;
3543
3544 pkt_type = hci_skb_pkt_type(skb);
3545 sk_ptr = skb->data;
3546 sk_len = skb->len;
3547
3548 if (pkt_type == HCI_ACLDATA_PKT) {
3549 acl_hdr = hci_acl_hdr(skb);
3550 if (le16_to_cpu(acl_hdr->handle) != QCA_MEMDUMP_ACL_HANDLE)
3551 return 0;
3552 sk_ptr += HCI_ACL_HDR_SIZE;
3553 sk_len -= HCI_ACL_HDR_SIZE;
3554 event_hdr = (struct hci_event_hdr *)sk_ptr;
3555 } else {
3556 event_hdr = hci_event_hdr(skb);
3557 }
3558
3559 if ((event_hdr->evt != HCI_VENDOR_PKT)
3560 || (event_hdr->plen != (sk_len - HCI_EVENT_HDR_SIZE)))
3561 return 0;
3562
3563 sk_ptr += HCI_EVENT_HDR_SIZE;
3564 sk_len -= HCI_EVENT_HDR_SIZE;
3565
3566 dump_hdr = (struct qca_dump_hdr *)sk_ptr;
3567 if ((sk_len < offsetof(struct qca_dump_hdr, data))
3568 || (dump_hdr->vse_class != QCA_MEMDUMP_VSE_CLASS)
3569 || (dump_hdr->msg_type != QCA_MEMDUMP_MSG_TYPE))
3570 return 0;
3571
3572 /*it is dump pkt now*/
3573 seqno = le16_to_cpu(dump_hdr->seqno);
3574 if (seqno == 0) {
3575 set_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags);
3576 dump_size = le32_to_cpu(dump_hdr->ram_dump_size);
3577 if (!dump_size || (dump_size > QCA_MEMDUMP_SIZE_MAX)) {
3578 ret = -EILSEQ;
3579 bt_dev_err(hdev, "Invalid memdump size(%u)",
3580 dump_size);
3581 goto out;
3582 }
3583
3584 ret = hci_devcd_init(hdev, dump_size);
3585 if (ret < 0) {
3586 bt_dev_err(hdev, "memdump init error(%d)", ret);
3587 goto out;
3588 }
3589
3590 btdata->qca_dump.ram_dump_size = dump_size;
3591 btdata->qca_dump.ram_dump_seqno = 0;
3592 sk_ptr += offsetof(struct qca_dump_hdr, data0);
3593 sk_len -= offsetof(struct qca_dump_hdr, data0);
3594
3595 usb_disable_autosuspend(udev);
3596 bt_dev_info(hdev, "%s memdump size(%u)\n",
3597 (pkt_type == HCI_ACLDATA_PKT) ? "ACL" : "event",
3598 dump_size);
3599 } else {
3600 sk_ptr += offsetof(struct qca_dump_hdr, data);
3601 sk_len -= offsetof(struct qca_dump_hdr, data);
3602 }
3603
3604 if (!btdata->qca_dump.ram_dump_size) {
3605 ret = -EINVAL;
3606 bt_dev_err(hdev, "memdump is not active");
3607 goto out;
3608 }
3609
3610 if ((seqno > btdata->qca_dump.ram_dump_seqno + 1) && (seqno != QCA_LAST_SEQUENCE_NUM)) {
3611 dump_size = QCA_MEMDUMP_PKT_SIZE * (seqno - btdata->qca_dump.ram_dump_seqno - 1);
3612 hci_devcd_append_pattern(hdev, 0x0, dump_size);
3613 bt_dev_err(hdev,
3614 "expected memdump seqno(%u) is not received(%u)\n",
3615 btdata->qca_dump.ram_dump_seqno, seqno);
3616 btdata->qca_dump.ram_dump_seqno = seqno;
3617 kfree_skb(skb);
3618 return ret;
3619 }
3620
3621 skb_pull(skb, skb->len - sk_len);
3622 hci_devcd_append(hdev, skb);
3623 btdata->qca_dump.ram_dump_seqno++;
3624 if (seqno == QCA_LAST_SEQUENCE_NUM) {
3625 bt_dev_info(hdev,
3626 "memdump done: pkts(%u), total(%u)\n",
3627 btdata->qca_dump.ram_dump_seqno, btdata->qca_dump.ram_dump_size);
3628
3629 hci_devcd_complete(hdev);
3630 goto out;
3631 }
3632 return ret;
3633
3634 out:
3635 if (btdata->qca_dump.ram_dump_size)
3636 usb_enable_autosuspend(udev);
3637 btdata->qca_dump.ram_dump_size = 0;
3638 btdata->qca_dump.ram_dump_seqno = 0;
3639 clear_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags);
3640
3641 if (ret < 0)
3642 kfree_skb(skb);
3643 return ret;
3644 }
3645
btusb_recv_acl_qca(struct hci_dev * hdev,struct sk_buff * skb)3646 static int btusb_recv_acl_qca(struct hci_dev *hdev, struct sk_buff *skb)
3647 {
3648 if (handle_dump_pkt_qca(hdev, skb))
3649 return 0;
3650 return hci_recv_frame(hdev, skb);
3651 }
3652
btusb_recv_evt_qca(struct hci_dev * hdev,struct sk_buff * skb)3653 static int btusb_recv_evt_qca(struct hci_dev *hdev, struct sk_buff *skb)
3654 {
3655 if (handle_dump_pkt_qca(hdev, skb))
3656 return 0;
3657 return hci_recv_frame(hdev, skb);
3658 }
3659
3660
3661 #define QCA_DFU_PACKET_LEN 4096
3662
3663 #define QCA_GET_TARGET_VERSION 0x09
3664 #define QCA_CHECK_STATUS 0x05
3665 #define QCA_DFU_DOWNLOAD 0x01
3666
3667 #define QCA_SYSCFG_UPDATED 0x40
3668 #define QCA_PATCH_UPDATED 0x80
3669 #define QCA_DFU_TIMEOUT 3000
3670 #define QCA_FLAG_MULTI_NVM 0x80
3671 #define QCA_BT_RESET_WAIT_MS 100
3672
3673 #define WCN6855_2_0_RAM_VERSION_GF 0x400c1200
3674 #define WCN6855_2_1_RAM_VERSION_GF 0x400c1211
3675
3676 struct qca_version {
3677 __le32 rom_version;
3678 __le32 patch_version;
3679 __le32 ram_version;
3680 __u8 chip_id;
3681 __u8 platform_id;
3682 __le16 flag;
3683 __u8 reserved[4];
3684 } __packed;
3685
3686 struct qca_rampatch_version {
3687 __le16 rom_version_high;
3688 __le16 rom_version_low;
3689 __le16 patch_version;
3690 } __packed;
3691
3692 struct qca_device_info {
3693 u32 rom_version;
3694 u8 rampatch_hdr; /* length of header in rampatch */
3695 u8 nvm_hdr; /* length of header in NVM */
3696 u8 ver_offset; /* offset of version structure in rampatch */
3697 };
3698
3699 static const struct qca_device_info qca_devices_table[] = {
3700 { 0x00000100, 20, 4, 8 }, /* Rome 1.0 */
3701 { 0x00000101, 20, 4, 8 }, /* Rome 1.1 */
3702 { 0x00000200, 28, 4, 16 }, /* Rome 2.0 */
3703 { 0x00000201, 28, 4, 16 }, /* Rome 2.1 */
3704 { 0x00000300, 28, 4, 16 }, /* Rome 3.0 */
3705 { 0x00000302, 28, 4, 16 }, /* Rome 3.2 */
3706 { 0x00130100, 40, 4, 16 }, /* WCN6855 1.0 */
3707 { 0x00130200, 40, 4, 16 }, /* WCN6855 2.0 */
3708 { 0x00130201, 40, 4, 16 }, /* WCN6855 2.1 */
3709 { 0x00190200, 40, 4, 16 }, /* WCN785x 2.0 */
3710 };
3711
btusb_qca_send_vendor_req(struct usb_device * udev,u8 request,void * data,u16 size)3712 static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request,
3713 void *data, u16 size)
3714 {
3715 int pipe, err;
3716 u8 *buf;
3717
3718 buf = kmalloc(size, GFP_KERNEL);
3719 if (!buf)
3720 return -ENOMEM;
3721
3722 /* Found some of USB hosts have IOT issues with ours so that we should
3723 * not wait until HCI layer is ready.
3724 */
3725 pipe = usb_rcvctrlpipe(udev, 0);
3726 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
3727 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
3728 if (err < 0) {
3729 dev_err(&udev->dev, "Failed to access otp area (%d)", err);
3730 goto done;
3731 }
3732
3733 memcpy(data, buf, size);
3734
3735 done:
3736 kfree(buf);
3737
3738 return err;
3739 }
3740
btusb_setup_qca_download_fw(struct hci_dev * hdev,const struct firmware * firmware,size_t hdr_size)3741 static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
3742 const struct firmware *firmware,
3743 size_t hdr_size)
3744 {
3745 struct btusb_data *btdata = hci_get_drvdata(hdev);
3746 struct usb_device *udev = btdata->udev;
3747 size_t count, size, sent = 0;
3748 int pipe, len, err;
3749 u8 *buf;
3750
3751 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
3752 if (!buf)
3753 return -ENOMEM;
3754
3755 count = firmware->size;
3756
3757 size = min_t(size_t, count, hdr_size);
3758 memcpy(buf, firmware->data, size);
3759
3760 /* USB patches should go down to controller through USB path
3761 * because binary format fits to go down through USB channel.
3762 * USB control path is for patching headers and USB bulk is for
3763 * patch body.
3764 */
3765 pipe = usb_sndctrlpipe(udev, 0);
3766 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
3767 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
3768 if (err < 0) {
3769 bt_dev_err(hdev, "Failed to send headers (%d)", err);
3770 goto done;
3771 }
3772
3773 sent += size;
3774 count -= size;
3775
3776 /* ep2 need time to switch from function acl to function dfu,
3777 * so we add 20ms delay here.
3778 */
3779 msleep(20);
3780
3781 while (count) {
3782 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
3783
3784 memcpy(buf, firmware->data + sent, size);
3785
3786 pipe = usb_sndbulkpipe(udev, 0x02);
3787 err = usb_bulk_msg(udev, pipe, buf, size, &len,
3788 QCA_DFU_TIMEOUT);
3789 if (err < 0) {
3790 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)",
3791 sent, firmware->size, err);
3792 break;
3793 }
3794
3795 if (size != len) {
3796 bt_dev_err(hdev, "Failed to get bulk buffer");
3797 err = -EILSEQ;
3798 break;
3799 }
3800
3801 sent += size;
3802 count -= size;
3803 }
3804
3805 done:
3806 kfree(buf);
3807 return err;
3808 }
3809
btusb_setup_qca_load_rampatch(struct hci_dev * hdev,struct qca_version * ver,const struct qca_device_info * info)3810 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
3811 struct qca_version *ver,
3812 const struct qca_device_info *info)
3813 {
3814 struct qca_rampatch_version *rver;
3815 const struct firmware *fw;
3816 u32 ver_rom, ver_patch, rver_rom;
3817 u16 rver_rom_low, rver_rom_high, rver_patch;
3818 char fwname[64];
3819 int err;
3820
3821 ver_rom = le32_to_cpu(ver->rom_version);
3822 ver_patch = le32_to_cpu(ver->patch_version);
3823
3824 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom);
3825
3826 err = request_firmware(&fw, fwname, &hdev->dev);
3827 if (err) {
3828 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)",
3829 fwname, err);
3830 return err;
3831 }
3832
3833 bt_dev_info(hdev, "using rampatch file: %s", fwname);
3834
3835 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
3836 rver_rom_low = le16_to_cpu(rver->rom_version_low);
3837 rver_patch = le16_to_cpu(rver->patch_version);
3838
3839 if (ver_rom & ~0xffffU) {
3840 rver_rom_high = le16_to_cpu(rver->rom_version_high);
3841 rver_rom = rver_rom_high << 16 | rver_rom_low;
3842 } else {
3843 rver_rom = rver_rom_low;
3844 }
3845
3846 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, "
3847 "firmware rome 0x%x build 0x%x",
3848 rver_rom, rver_patch, ver_rom, ver_patch);
3849
3850 if (rver_rom != ver_rom || rver_patch <= ver_patch) {
3851 bt_dev_err(hdev, "rampatch file version did not match with firmware");
3852 err = -EINVAL;
3853 goto done;
3854 }
3855
3856 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
3857
3858 done:
3859 release_firmware(fw);
3860
3861 return err;
3862 }
3863
btusb_generate_qca_nvm_name(char * fwname,size_t max_size,const struct qca_version * ver)3864 static void btusb_generate_qca_nvm_name(char *fwname, size_t max_size,
3865 const struct qca_version *ver)
3866 {
3867 u32 rom_version = le32_to_cpu(ver->rom_version);
3868 u16 flag = le16_to_cpu(ver->flag);
3869
3870 if (((flag >> 8) & 0xff) == QCA_FLAG_MULTI_NVM) {
3871 /* The board_id should be split into two bytes
3872 * The 1st byte is chip ID, and the 2nd byte is platform ID
3873 * For example, board ID 0x010A, 0x01 is platform ID. 0x0A is chip ID
3874 * we have several platforms, and platform IDs are continuously added
3875 * Platform ID:
3876 * 0x00 is for Mobile
3877 * 0x01 is for X86
3878 * 0x02 is for Automotive
3879 * 0x03 is for Consumer electronic
3880 */
3881 u16 board_id = (ver->chip_id << 8) + ver->platform_id;
3882 const char *variant;
3883
3884 switch (le32_to_cpu(ver->ram_version)) {
3885 case WCN6855_2_0_RAM_VERSION_GF:
3886 case WCN6855_2_1_RAM_VERSION_GF:
3887 variant = "_gf";
3888 break;
3889 default:
3890 variant = "";
3891 break;
3892 }
3893
3894 if (board_id == 0) {
3895 snprintf(fwname, max_size, "qca/nvm_usb_%08x%s.bin",
3896 rom_version, variant);
3897 } else {
3898 snprintf(fwname, max_size, "qca/nvm_usb_%08x%s_%04x.bin",
3899 rom_version, variant, board_id);
3900 }
3901 } else {
3902 snprintf(fwname, max_size, "qca/nvm_usb_%08x.bin",
3903 rom_version);
3904 }
3905
3906 }
3907
btusb_setup_qca_load_nvm(struct hci_dev * hdev,struct qca_version * ver,const struct qca_device_info * info)3908 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
3909 struct qca_version *ver,
3910 const struct qca_device_info *info)
3911 {
3912 const struct firmware *fw;
3913 char fwname[64];
3914 int err;
3915
3916 btusb_generate_qca_nvm_name(fwname, sizeof(fwname), ver);
3917
3918 err = request_firmware(&fw, fwname, &hdev->dev);
3919 if (err) {
3920 bt_dev_err(hdev, "failed to request NVM file: %s (%d)",
3921 fwname, err);
3922 return err;
3923 }
3924
3925 bt_dev_info(hdev, "using NVM file: %s", fwname);
3926
3927 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
3928
3929 release_firmware(fw);
3930
3931 return err;
3932 }
3933
3934 /* identify the ROM version and check whether patches are needed */
btusb_qca_need_patch(struct usb_device * udev)3935 static bool btusb_qca_need_patch(struct usb_device *udev)
3936 {
3937 struct qca_version ver;
3938
3939 if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3940 sizeof(ver)) < 0)
3941 return false;
3942 /* only low ROM versions need patches */
3943 return !(le32_to_cpu(ver.rom_version) & ~0xffffU);
3944 }
3945
btusb_setup_qca(struct hci_dev * hdev)3946 static int btusb_setup_qca(struct hci_dev *hdev)
3947 {
3948 struct btusb_data *btdata = hci_get_drvdata(hdev);
3949 struct usb_device *udev = btdata->udev;
3950 const struct qca_device_info *info = NULL;
3951 struct qca_version ver;
3952 u32 ver_rom;
3953 u8 status;
3954 int i, err;
3955
3956 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3957 sizeof(ver));
3958 if (err < 0)
3959 return err;
3960
3961 ver_rom = le32_to_cpu(ver.rom_version);
3962
3963 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
3964 if (ver_rom == qca_devices_table[i].rom_version)
3965 info = &qca_devices_table[i];
3966 }
3967 if (!info) {
3968 /* If the rom_version is not matched in the qca_devices_table
3969 * and the high ROM version is not zero, we assume this chip no
3970 * need to load the rampatch and nvm.
3971 */
3972 if (ver_rom & ~0xffffU)
3973 return 0;
3974
3975 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom);
3976 return -ENODEV;
3977 }
3978
3979 err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status,
3980 sizeof(status));
3981 if (err < 0)
3982 return err;
3983
3984 if (!(status & QCA_PATCH_UPDATED)) {
3985 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
3986 if (err < 0)
3987 return err;
3988 }
3989
3990 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3991 sizeof(ver));
3992 if (err < 0)
3993 return err;
3994
3995 btdata->qca_dump.fw_version = le32_to_cpu(ver.patch_version);
3996 btdata->qca_dump.controller_id = le32_to_cpu(ver.rom_version);
3997
3998 if (!(status & QCA_SYSCFG_UPDATED)) {
3999 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
4000 if (err < 0)
4001 return err;
4002
4003 /* WCN6855 2.1 and later will reset to apply firmware downloaded here, so
4004 * wait ~100ms for reset Done then go ahead, otherwise, it maybe
4005 * cause potential enable failure.
4006 */
4007 if (info->rom_version >= 0x00130201)
4008 msleep(QCA_BT_RESET_WAIT_MS);
4009 }
4010
4011 /* Mark HCI_OP_ENHANCED_SETUP_SYNC_CONN as broken as it doesn't seem to
4012 * work with the likes of HSP/HFP mSBC.
4013 */
4014 set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks);
4015
4016 return 0;
4017 }
4018
__set_diag_interface(struct hci_dev * hdev)4019 static inline int __set_diag_interface(struct hci_dev *hdev)
4020 {
4021 struct btusb_data *data = hci_get_drvdata(hdev);
4022 struct usb_interface *intf = data->diag;
4023 int i;
4024
4025 if (!data->diag)
4026 return -ENODEV;
4027
4028 data->diag_tx_ep = NULL;
4029 data->diag_rx_ep = NULL;
4030
4031 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
4032 struct usb_endpoint_descriptor *ep_desc;
4033
4034 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
4035
4036 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
4037 data->diag_tx_ep = ep_desc;
4038 continue;
4039 }
4040
4041 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
4042 data->diag_rx_ep = ep_desc;
4043 continue;
4044 }
4045 }
4046
4047 if (!data->diag_tx_ep || !data->diag_rx_ep) {
4048 bt_dev_err(hdev, "invalid diagnostic descriptors");
4049 return -ENODEV;
4050 }
4051
4052 return 0;
4053 }
4054
alloc_diag_urb(struct hci_dev * hdev,bool enable)4055 static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable)
4056 {
4057 struct btusb_data *data = hci_get_drvdata(hdev);
4058 struct sk_buff *skb;
4059 struct urb *urb;
4060 unsigned int pipe;
4061
4062 if (!data->diag_tx_ep)
4063 return ERR_PTR(-ENODEV);
4064
4065 urb = usb_alloc_urb(0, GFP_KERNEL);
4066 if (!urb)
4067 return ERR_PTR(-ENOMEM);
4068
4069 skb = bt_skb_alloc(2, GFP_KERNEL);
4070 if (!skb) {
4071 usb_free_urb(urb);
4072 return ERR_PTR(-ENOMEM);
4073 }
4074
4075 skb_put_u8(skb, 0xf0);
4076 skb_put_u8(skb, enable);
4077
4078 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress);
4079
4080 usb_fill_bulk_urb(urb, data->udev, pipe,
4081 skb->data, skb->len, btusb_tx_complete, skb);
4082
4083 skb->dev = (void *)hdev;
4084
4085 return urb;
4086 }
4087
btusb_bcm_set_diag(struct hci_dev * hdev,bool enable)4088 static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable)
4089 {
4090 struct btusb_data *data = hci_get_drvdata(hdev);
4091 struct urb *urb;
4092
4093 if (!data->diag)
4094 return -ENODEV;
4095
4096 if (!test_bit(HCI_RUNNING, &hdev->flags))
4097 return -ENETDOWN;
4098
4099 urb = alloc_diag_urb(hdev, enable);
4100 if (IS_ERR(urb))
4101 return PTR_ERR(urb);
4102
4103 return submit_or_queue_tx_urb(hdev, urb);
4104 }
4105
4106 #ifdef CONFIG_PM
btusb_oob_wake_handler(int irq,void * priv)4107 static irqreturn_t btusb_oob_wake_handler(int irq, void *priv)
4108 {
4109 struct btusb_data *data = priv;
4110
4111 pm_wakeup_event(&data->udev->dev, 0);
4112 pm_system_wakeup();
4113
4114 /* Disable only if not already disabled (keep it balanced) */
4115 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
4116 disable_irq_nosync(irq);
4117 disable_irq_wake(irq);
4118 }
4119 return IRQ_HANDLED;
4120 }
4121
4122 static const struct of_device_id btusb_match_table[] = {
4123 { .compatible = "usb1286,204e" },
4124 { .compatible = "usbcf3,e300" }, /* QCA6174A */
4125 { .compatible = "usb4ca,301a" }, /* QCA6174A (Lite-On) */
4126 { }
4127 };
4128 MODULE_DEVICE_TABLE(of, btusb_match_table);
4129
4130 /* Use an oob wakeup pin? */
btusb_config_oob_wake(struct hci_dev * hdev)4131 static int btusb_config_oob_wake(struct hci_dev *hdev)
4132 {
4133 struct btusb_data *data = hci_get_drvdata(hdev);
4134 struct device *dev = &data->udev->dev;
4135 int irq, ret;
4136
4137 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
4138
4139 if (!of_match_device(btusb_match_table, dev))
4140 return 0;
4141
4142 /* Move on if no IRQ specified */
4143 irq = of_irq_get_byname(dev->of_node, "wakeup");
4144 if (irq <= 0) {
4145 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__);
4146 return 0;
4147 }
4148
4149 irq_set_status_flags(irq, IRQ_NOAUTOEN);
4150 ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler,
4151 0, "OOB Wake-on-BT", data);
4152 if (ret) {
4153 bt_dev_err(hdev, "%s: IRQ request failed", __func__);
4154 return ret;
4155 }
4156
4157 ret = device_init_wakeup(dev, true);
4158 if (ret) {
4159 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__);
4160 return ret;
4161 }
4162
4163 data->oob_wake_irq = irq;
4164 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq);
4165 return 0;
4166 }
4167 #endif
4168
btusb_check_needs_reset_resume(struct usb_interface * intf)4169 static void btusb_check_needs_reset_resume(struct usb_interface *intf)
4170 {
4171 if (dmi_check_system(btusb_needs_reset_resume_table))
4172 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
4173 }
4174
btusb_wakeup(struct hci_dev * hdev)4175 static bool btusb_wakeup(struct hci_dev *hdev)
4176 {
4177 struct btusb_data *data = hci_get_drvdata(hdev);
4178
4179 return device_may_wakeup(&data->udev->dev);
4180 }
4181
btusb_shutdown_qca(struct hci_dev * hdev)4182 static int btusb_shutdown_qca(struct hci_dev *hdev)
4183 {
4184 struct sk_buff *skb;
4185
4186 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
4187 if (IS_ERR(skb)) {
4188 bt_dev_err(hdev, "HCI reset during shutdown failed");
4189 return PTR_ERR(skb);
4190 }
4191 kfree_skb(skb);
4192
4193 return 0;
4194 }
4195
force_poll_sync_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)4196 static ssize_t force_poll_sync_read(struct file *file, char __user *user_buf,
4197 size_t count, loff_t *ppos)
4198 {
4199 struct btusb_data *data = file->private_data;
4200 char buf[3];
4201
4202 buf[0] = data->poll_sync ? 'Y' : 'N';
4203 buf[1] = '\n';
4204 buf[2] = '\0';
4205 return simple_read_from_buffer(user_buf, count, ppos, buf, 2);
4206 }
4207
force_poll_sync_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)4208 static ssize_t force_poll_sync_write(struct file *file,
4209 const char __user *user_buf,
4210 size_t count, loff_t *ppos)
4211 {
4212 struct btusb_data *data = file->private_data;
4213 bool enable;
4214 int err;
4215
4216 err = kstrtobool_from_user(user_buf, count, &enable);
4217 if (err)
4218 return err;
4219
4220 /* Only allow changes while the adapter is down */
4221 if (test_bit(HCI_UP, &data->hdev->flags))
4222 return -EPERM;
4223
4224 if (data->poll_sync == enable)
4225 return -EALREADY;
4226
4227 data->poll_sync = enable;
4228
4229 return count;
4230 }
4231
4232 static const struct file_operations force_poll_sync_fops = {
4233 .open = simple_open,
4234 .read = force_poll_sync_read,
4235 .write = force_poll_sync_write,
4236 .llseek = default_llseek,
4237 };
4238
btusb_probe(struct usb_interface * intf,const struct usb_device_id * id)4239 static int btusb_probe(struct usb_interface *intf,
4240 const struct usb_device_id *id)
4241 {
4242 struct usb_endpoint_descriptor *ep_desc;
4243 struct gpio_desc *reset_gpio;
4244 struct btusb_data *data;
4245 struct hci_dev *hdev;
4246 unsigned ifnum_base;
4247 int i, err, priv_size;
4248
4249 BT_DBG("intf %p id %p", intf, id);
4250
4251 if ((id->driver_info & BTUSB_IFNUM_2) &&
4252 (intf->cur_altsetting->desc.bInterfaceNumber != 0) &&
4253 (intf->cur_altsetting->desc.bInterfaceNumber != 2))
4254 return -ENODEV;
4255
4256 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber;
4257
4258 if (!id->driver_info) {
4259 const struct usb_device_id *match;
4260
4261 match = usb_match_id(intf, quirks_table);
4262 if (match)
4263 id = match;
4264 }
4265
4266 if (id->driver_info == BTUSB_IGNORE)
4267 return -ENODEV;
4268
4269 if (id->driver_info & BTUSB_ATH3012) {
4270 struct usb_device *udev = interface_to_usbdev(intf);
4271
4272 /* Old firmware would otherwise let ath3k driver load
4273 * patch and sysconfig files
4274 */
4275 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 &&
4276 !btusb_qca_need_patch(udev))
4277 return -ENODEV;
4278 }
4279
4280 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
4281 if (!data)
4282 return -ENOMEM;
4283
4284 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
4285 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
4286
4287 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
4288 data->intr_ep = ep_desc;
4289 continue;
4290 }
4291
4292 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
4293 data->bulk_tx_ep = ep_desc;
4294 continue;
4295 }
4296
4297 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
4298 data->bulk_rx_ep = ep_desc;
4299 continue;
4300 }
4301 }
4302
4303 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
4304 return -ENODEV;
4305
4306 if (id->driver_info & BTUSB_AMP) {
4307 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
4308 data->cmdreq = 0x2b;
4309 } else {
4310 data->cmdreq_type = USB_TYPE_CLASS;
4311 data->cmdreq = 0x00;
4312 }
4313
4314 data->udev = interface_to_usbdev(intf);
4315 data->intf = intf;
4316
4317 INIT_WORK(&data->work, btusb_work);
4318 INIT_WORK(&data->waker, btusb_waker);
4319 INIT_DELAYED_WORK(&data->rx_work, btusb_rx_work);
4320
4321 skb_queue_head_init(&data->acl_q);
4322
4323 init_usb_anchor(&data->deferred);
4324 init_usb_anchor(&data->tx_anchor);
4325 spin_lock_init(&data->txlock);
4326
4327 init_usb_anchor(&data->intr_anchor);
4328 init_usb_anchor(&data->bulk_anchor);
4329 init_usb_anchor(&data->isoc_anchor);
4330 init_usb_anchor(&data->diag_anchor);
4331 init_usb_anchor(&data->ctrl_anchor);
4332 spin_lock_init(&data->rxlock);
4333
4334 priv_size = 0;
4335
4336 data->recv_event = hci_recv_frame;
4337 data->recv_bulk = btusb_recv_bulk;
4338
4339 if (id->driver_info & BTUSB_INTEL_COMBINED) {
4340 /* Allocate extra space for Intel device */
4341 priv_size += sizeof(struct btintel_data);
4342
4343 /* Override the rx handlers */
4344 data->recv_event = btintel_recv_event;
4345 data->recv_bulk = btusb_recv_bulk_intel;
4346 } else if (id->driver_info & BTUSB_REALTEK) {
4347 /* Allocate extra space for Realtek device */
4348 priv_size += sizeof(struct btrealtek_data);
4349
4350 data->recv_event = btusb_recv_event_realtek;
4351 } else if (id->driver_info & BTUSB_MEDIATEK) {
4352 /* Allocate extra space for Mediatek device */
4353 priv_size += sizeof(struct btmediatek_data);
4354 }
4355
4356 data->recv_acl = hci_recv_frame;
4357
4358 hdev = hci_alloc_dev_priv(priv_size);
4359 if (!hdev)
4360 return -ENOMEM;
4361
4362 hdev->bus = HCI_USB;
4363 hci_set_drvdata(hdev, data);
4364
4365 data->hdev = hdev;
4366
4367 SET_HCIDEV_DEV(hdev, &intf->dev);
4368
4369 reset_gpio = gpiod_get_optional(&data->udev->dev, "reset",
4370 GPIOD_OUT_LOW);
4371 if (IS_ERR(reset_gpio)) {
4372 err = PTR_ERR(reset_gpio);
4373 goto out_free_dev;
4374 } else if (reset_gpio) {
4375 data->reset_gpio = reset_gpio;
4376 }
4377
4378 hdev->open = btusb_open;
4379 hdev->close = btusb_close;
4380 hdev->flush = btusb_flush;
4381 hdev->send = btusb_send_frame;
4382 hdev->notify = btusb_notify;
4383 hdev->wakeup = btusb_wakeup;
4384
4385 #ifdef CONFIG_PM
4386 err = btusb_config_oob_wake(hdev);
4387 if (err)
4388 goto out_free_dev;
4389
4390 /* Marvell devices may need a specific chip configuration */
4391 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) {
4392 err = marvell_config_oob_wake(hdev);
4393 if (err)
4394 goto out_free_dev;
4395 }
4396 #endif
4397 if (id->driver_info & BTUSB_CW6622)
4398 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
4399
4400 if (id->driver_info & BTUSB_BCM2045)
4401 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
4402
4403 if (id->driver_info & BTUSB_BCM92035)
4404 hdev->setup = btusb_setup_bcm92035;
4405
4406 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
4407 (id->driver_info & BTUSB_BCM_PATCHRAM)) {
4408 hdev->manufacturer = 15;
4409 hdev->setup = btbcm_setup_patchram;
4410 hdev->set_diag = btusb_bcm_set_diag;
4411 hdev->set_bdaddr = btbcm_set_bdaddr;
4412
4413 /* Broadcom LM_DIAG Interface numbers are hardcoded */
4414 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
4415 }
4416
4417 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
4418 (id->driver_info & BTUSB_BCM_APPLE)) {
4419 hdev->manufacturer = 15;
4420 hdev->setup = btbcm_setup_apple;
4421 hdev->set_diag = btusb_bcm_set_diag;
4422
4423 /* Broadcom LM_DIAG Interface numbers are hardcoded */
4424 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
4425 }
4426
4427 /* Combined Intel Device setup to support multiple setup routine */
4428 if (id->driver_info & BTUSB_INTEL_COMBINED) {
4429 err = btintel_configure_setup(hdev, btusb_driver.name);
4430 if (err)
4431 goto out_free_dev;
4432
4433 /* Transport specific configuration */
4434 hdev->send = btusb_send_frame_intel;
4435 hdev->cmd_timeout = btusb_intel_cmd_timeout;
4436
4437 if (id->driver_info & BTUSB_INTEL_NO_WBS_SUPPORT)
4438 btintel_set_flag(hdev, INTEL_ROM_LEGACY_NO_WBS_SUPPORT);
4439
4440 if (id->driver_info & BTUSB_INTEL_BROKEN_INITIAL_NCMD)
4441 btintel_set_flag(hdev, INTEL_BROKEN_INITIAL_NCMD);
4442
4443 if (id->driver_info & BTUSB_INTEL_BROKEN_SHUTDOWN_LED)
4444 btintel_set_flag(hdev, INTEL_BROKEN_SHUTDOWN_LED);
4445 }
4446
4447 if (id->driver_info & BTUSB_MARVELL)
4448 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
4449
4450 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_MTK) &&
4451 (id->driver_info & BTUSB_MEDIATEK)) {
4452 hdev->setup = btusb_mtk_setup;
4453 hdev->shutdown = btusb_mtk_shutdown;
4454 hdev->manufacturer = 70;
4455 hdev->cmd_timeout = btmtk_reset_sync;
4456 hdev->set_bdaddr = btmtk_set_bdaddr;
4457 set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks);
4458 set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
4459 data->recv_acl = btusb_recv_acl_mtk;
4460 }
4461
4462 if (id->driver_info & BTUSB_SWAVE) {
4463 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
4464 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
4465 }
4466
4467 if (id->driver_info & BTUSB_INTEL_BOOT) {
4468 hdev->manufacturer = 2;
4469 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
4470 }
4471
4472 if (id->driver_info & BTUSB_ATH3012) {
4473 data->setup_on_usb = btusb_setup_qca;
4474 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
4475 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4476 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
4477 }
4478
4479 if (id->driver_info & BTUSB_QCA_ROME) {
4480 data->setup_on_usb = btusb_setup_qca;
4481 hdev->shutdown = btusb_shutdown_qca;
4482 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
4483 hdev->cmd_timeout = btusb_qca_cmd_timeout;
4484 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4485 btusb_check_needs_reset_resume(intf);
4486 }
4487
4488 if (id->driver_info & BTUSB_QCA_WCN6855) {
4489 data->qca_dump.id_vendor = id->idVendor;
4490 data->qca_dump.id_product = id->idProduct;
4491 data->recv_event = btusb_recv_evt_qca;
4492 data->recv_acl = btusb_recv_acl_qca;
4493 hci_devcd_register(hdev, btusb_coredump_qca, btusb_dump_hdr_qca, NULL);
4494 data->setup_on_usb = btusb_setup_qca;
4495 hdev->shutdown = btusb_shutdown_qca;
4496 hdev->set_bdaddr = btusb_set_bdaddr_wcn6855;
4497 hdev->cmd_timeout = btusb_qca_cmd_timeout;
4498 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4499 hci_set_msft_opcode(hdev, 0xFD70);
4500 }
4501
4502 if (id->driver_info & BTUSB_AMP) {
4503 /* AMP controllers do not support SCO packets */
4504 data->isoc = NULL;
4505 } else {
4506 /* Interface orders are hardcoded in the specification */
4507 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1);
4508 data->isoc_ifnum = ifnum_base + 1;
4509 }
4510
4511 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_RTL) &&
4512 (id->driver_info & BTUSB_REALTEK)) {
4513 btrtl_set_driver_name(hdev, btusb_driver.name);
4514 hdev->setup = btusb_setup_realtek;
4515 hdev->shutdown = btrtl_shutdown_realtek;
4516 hdev->cmd_timeout = btusb_rtl_cmd_timeout;
4517 hdev->hw_error = btusb_rtl_hw_error;
4518
4519 /* Realtek devices need to set remote wakeup on auto-suspend */
4520 set_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags);
4521 set_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags);
4522 }
4523
4524 if (id->driver_info & BTUSB_ACTIONS_SEMI) {
4525 /* Support is advertised, but not implemented */
4526 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks);
4527 set_bit(HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER, &hdev->quirks);
4528 set_bit(HCI_QUIRK_BROKEN_SET_RPA_TIMEOUT, &hdev->quirks);
4529 set_bit(HCI_QUIRK_BROKEN_EXT_SCAN, &hdev->quirks);
4530 set_bit(HCI_QUIRK_BROKEN_READ_ENC_KEY_SIZE, &hdev->quirks);
4531 set_bit(HCI_QUIRK_BROKEN_EXT_CREATE_CONN, &hdev->quirks);
4532 set_bit(HCI_QUIRK_BROKEN_WRITE_AUTH_PAYLOAD_TIMEOUT, &hdev->quirks);
4533 }
4534
4535 if (!reset)
4536 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
4537
4538 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
4539 if (!disable_scofix)
4540 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
4541 }
4542
4543 if (id->driver_info & BTUSB_BROKEN_ISOC)
4544 data->isoc = NULL;
4545
4546 if (id->driver_info & BTUSB_WIDEBAND_SPEECH)
4547 set_bit(HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED, &hdev->quirks);
4548
4549 if (id->driver_info & BTUSB_VALID_LE_STATES)
4550 set_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks);
4551
4552 if (id->driver_info & BTUSB_DIGIANSWER) {
4553 data->cmdreq_type = USB_TYPE_VENDOR;
4554 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
4555 }
4556
4557 if (id->driver_info & BTUSB_CSR) {
4558 struct usb_device *udev = data->udev;
4559 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
4560
4561 /* Old firmware would otherwise execute USB reset */
4562 if (bcdDevice < 0x117)
4563 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
4564
4565 /* This must be set first in case we disable it for fakes */
4566 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4567
4568 /* Fake CSR devices with broken commands */
4569 if (le16_to_cpu(udev->descriptor.idVendor) == 0x0a12 &&
4570 le16_to_cpu(udev->descriptor.idProduct) == 0x0001)
4571 hdev->setup = btusb_setup_csr;
4572 }
4573
4574 if (id->driver_info & BTUSB_SNIFFER) {
4575 struct usb_device *udev = data->udev;
4576
4577 /* New sniffer firmware has crippled HCI interface */
4578 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
4579 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
4580 }
4581
4582 if (id->driver_info & BTUSB_INTEL_BOOT) {
4583 /* A bug in the bootloader causes that interrupt interface is
4584 * only enabled after receiving SetInterface(0, AltSetting=0).
4585 */
4586 err = usb_set_interface(data->udev, 0, 0);
4587 if (err < 0) {
4588 BT_ERR("failed to set interface 0, alt 0 %d", err);
4589 goto out_free_dev;
4590 }
4591 }
4592
4593 if (data->isoc) {
4594 err = usb_driver_claim_interface(&btusb_driver,
4595 data->isoc, data);
4596 if (err < 0)
4597 goto out_free_dev;
4598 }
4599
4600 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && data->diag) {
4601 if (!usb_driver_claim_interface(&btusb_driver,
4602 data->diag, data))
4603 __set_diag_interface(hdev);
4604 else
4605 data->diag = NULL;
4606 }
4607
4608 if (enable_autosuspend)
4609 usb_enable_autosuspend(data->udev);
4610
4611 data->poll_sync = enable_poll_sync;
4612
4613 err = hci_register_dev(hdev);
4614 if (err < 0)
4615 goto out_free_dev;
4616
4617 usb_set_intfdata(intf, data);
4618
4619 debugfs_create_file("force_poll_sync", 0644, hdev->debugfs, data,
4620 &force_poll_sync_fops);
4621
4622 return 0;
4623
4624 out_free_dev:
4625 if (data->reset_gpio)
4626 gpiod_put(data->reset_gpio);
4627 hci_free_dev(hdev);
4628 return err;
4629 }
4630
btusb_disconnect(struct usb_interface * intf)4631 static void btusb_disconnect(struct usb_interface *intf)
4632 {
4633 struct btusb_data *data = usb_get_intfdata(intf);
4634 struct hci_dev *hdev;
4635
4636 BT_DBG("intf %p", intf);
4637
4638 if (!data)
4639 return;
4640
4641 hdev = data->hdev;
4642 usb_set_intfdata(data->intf, NULL);
4643
4644 if (data->isoc)
4645 usb_set_intfdata(data->isoc, NULL);
4646
4647 if (data->diag)
4648 usb_set_intfdata(data->diag, NULL);
4649
4650 if (data->disconnect)
4651 data->disconnect(hdev);
4652
4653 hci_unregister_dev(hdev);
4654
4655 if (intf == data->intf) {
4656 if (data->isoc)
4657 usb_driver_release_interface(&btusb_driver, data->isoc);
4658 if (data->diag)
4659 usb_driver_release_interface(&btusb_driver, data->diag);
4660 } else if (intf == data->isoc) {
4661 if (data->diag)
4662 usb_driver_release_interface(&btusb_driver, data->diag);
4663 usb_driver_release_interface(&btusb_driver, data->intf);
4664 } else if (intf == data->diag) {
4665 usb_driver_release_interface(&btusb_driver, data->intf);
4666 if (data->isoc)
4667 usb_driver_release_interface(&btusb_driver, data->isoc);
4668 }
4669
4670 if (data->oob_wake_irq)
4671 device_init_wakeup(&data->udev->dev, false);
4672
4673 if (data->reset_gpio)
4674 gpiod_put(data->reset_gpio);
4675
4676 hci_free_dev(hdev);
4677 }
4678
4679 #ifdef CONFIG_PM
btusb_suspend(struct usb_interface * intf,pm_message_t message)4680 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
4681 {
4682 struct btusb_data *data = usb_get_intfdata(intf);
4683
4684 BT_DBG("intf %p", intf);
4685
4686 if (data->suspend_count++)
4687 return 0;
4688
4689 spin_lock_irq(&data->txlock);
4690 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
4691 set_bit(BTUSB_SUSPENDING, &data->flags);
4692 spin_unlock_irq(&data->txlock);
4693 } else {
4694 spin_unlock_irq(&data->txlock);
4695 data->suspend_count--;
4696 return -EBUSY;
4697 }
4698
4699 cancel_work_sync(&data->work);
4700
4701 if (data->suspend)
4702 data->suspend(data->hdev);
4703
4704 btusb_stop_traffic(data);
4705 usb_kill_anchored_urbs(&data->tx_anchor);
4706
4707 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) {
4708 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
4709 enable_irq_wake(data->oob_wake_irq);
4710 enable_irq(data->oob_wake_irq);
4711 }
4712
4713 /* For global suspend, Realtek devices lose the loaded fw
4714 * in them. But for autosuspend, firmware should remain.
4715 * Actually, it depends on whether the usb host sends
4716 * set feature (enable wakeup) or not.
4717 */
4718 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) {
4719 if (PMSG_IS_AUTO(message) &&
4720 device_can_wakeup(&data->udev->dev))
4721 data->udev->do_remote_wakeup = 1;
4722 else if (!PMSG_IS_AUTO(message) &&
4723 !device_may_wakeup(&data->udev->dev)) {
4724 data->udev->do_remote_wakeup = 0;
4725 data->udev->reset_resume = 1;
4726 }
4727 }
4728
4729 return 0;
4730 }
4731
play_deferred(struct btusb_data * data)4732 static void play_deferred(struct btusb_data *data)
4733 {
4734 struct urb *urb;
4735 int err;
4736
4737 while ((urb = usb_get_from_anchor(&data->deferred))) {
4738 usb_anchor_urb(urb, &data->tx_anchor);
4739
4740 err = usb_submit_urb(urb, GFP_ATOMIC);
4741 if (err < 0) {
4742 if (err != -EPERM && err != -ENODEV)
4743 BT_ERR("%s urb %p submission failed (%d)",
4744 data->hdev->name, urb, -err);
4745 kfree(urb->setup_packet);
4746 usb_unanchor_urb(urb);
4747 usb_free_urb(urb);
4748 break;
4749 }
4750
4751 data->tx_in_flight++;
4752 usb_free_urb(urb);
4753 }
4754
4755 /* Cleanup the rest deferred urbs. */
4756 while ((urb = usb_get_from_anchor(&data->deferred))) {
4757 kfree(urb->setup_packet);
4758 usb_free_urb(urb);
4759 }
4760 }
4761
btusb_resume(struct usb_interface * intf)4762 static int btusb_resume(struct usb_interface *intf)
4763 {
4764 struct btusb_data *data = usb_get_intfdata(intf);
4765 struct hci_dev *hdev = data->hdev;
4766 int err = 0;
4767
4768 BT_DBG("intf %p", intf);
4769
4770 if (--data->suspend_count)
4771 return 0;
4772
4773 /* Disable only if not already disabled (keep it balanced) */
4774 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
4775 disable_irq(data->oob_wake_irq);
4776 disable_irq_wake(data->oob_wake_irq);
4777 }
4778
4779 if (!test_bit(HCI_RUNNING, &hdev->flags))
4780 goto done;
4781
4782 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
4783 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
4784 if (err < 0) {
4785 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
4786 goto failed;
4787 }
4788 }
4789
4790 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
4791 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
4792 if (err < 0) {
4793 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
4794 goto failed;
4795 }
4796
4797 btusb_submit_bulk_urb(hdev, GFP_NOIO);
4798 }
4799
4800 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
4801 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
4802 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
4803 else
4804 btusb_submit_isoc_urb(hdev, GFP_NOIO);
4805 }
4806
4807 if (data->resume)
4808 data->resume(hdev);
4809
4810 spin_lock_irq(&data->txlock);
4811 play_deferred(data);
4812 clear_bit(BTUSB_SUSPENDING, &data->flags);
4813 spin_unlock_irq(&data->txlock);
4814 schedule_work(&data->work);
4815
4816 return 0;
4817
4818 failed:
4819 usb_scuttle_anchored_urbs(&data->deferred);
4820 done:
4821 spin_lock_irq(&data->txlock);
4822 clear_bit(BTUSB_SUSPENDING, &data->flags);
4823 spin_unlock_irq(&data->txlock);
4824
4825 return err;
4826 }
4827 #endif
4828
4829 #ifdef CONFIG_DEV_COREDUMP
btusb_coredump(struct device * dev)4830 static void btusb_coredump(struct device *dev)
4831 {
4832 struct btusb_data *data = dev_get_drvdata(dev);
4833 struct hci_dev *hdev = data->hdev;
4834
4835 if (hdev->dump.coredump)
4836 hdev->dump.coredump(hdev);
4837 }
4838 #endif
4839
4840 static struct usb_driver btusb_driver = {
4841 .name = "btusb",
4842 .probe = btusb_probe,
4843 .disconnect = btusb_disconnect,
4844 #ifdef CONFIG_PM
4845 .suspend = btusb_suspend,
4846 .resume = btusb_resume,
4847 #endif
4848 .id_table = btusb_table,
4849 .supports_autosuspend = 1,
4850 .disable_hub_initiated_lpm = 1,
4851
4852 #ifdef CONFIG_DEV_COREDUMP
4853 .drvwrap = {
4854 .driver = {
4855 .coredump = btusb_coredump,
4856 },
4857 },
4858 #endif
4859 };
4860
4861 module_usb_driver(btusb_driver);
4862
4863 module_param(disable_scofix, bool, 0644);
4864 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
4865
4866 module_param(force_scofix, bool, 0644);
4867 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
4868
4869 module_param(enable_autosuspend, bool, 0644);
4870 MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default");
4871
4872 module_param(reset, bool, 0644);
4873 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
4874
4875 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
4876 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
4877 MODULE_VERSION(VERSION);
4878 MODULE_LICENSE("GPL");
4879