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
541 /* Realtek 8852BE Bluetooth devices */
542 { USB_DEVICE(0x0cb8, 0xc559), .driver_info = BTUSB_REALTEK |
543 BTUSB_WIDEBAND_SPEECH },
544 { USB_DEVICE(0x0bda, 0x887b), .driver_info = BTUSB_REALTEK |
545 BTUSB_WIDEBAND_SPEECH },
546 { USB_DEVICE(0x0bda, 0xb85b), .driver_info = BTUSB_REALTEK |
547 BTUSB_WIDEBAND_SPEECH },
548 { USB_DEVICE(0x13d3, 0x3570), .driver_info = BTUSB_REALTEK |
549 BTUSB_WIDEBAND_SPEECH },
550 { USB_DEVICE(0x13d3, 0x3571), .driver_info = BTUSB_REALTEK |
551 BTUSB_WIDEBAND_SPEECH },
552
553 /* Realtek Bluetooth devices */
554 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
555 .driver_info = BTUSB_REALTEK },
556
557 /* MediaTek Bluetooth devices */
558 { USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01),
559 .driver_info = BTUSB_MEDIATEK |
560 BTUSB_WIDEBAND_SPEECH |
561 BTUSB_VALID_LE_STATES },
562
563 /* Additional MediaTek MT7615E Bluetooth devices */
564 { USB_DEVICE(0x13d3, 0x3560), .driver_info = BTUSB_MEDIATEK},
565
566 /* Additional MediaTek MT7663 Bluetooth devices */
567 { USB_DEVICE(0x043e, 0x310c), .driver_info = BTUSB_MEDIATEK |
568 BTUSB_WIDEBAND_SPEECH |
569 BTUSB_VALID_LE_STATES },
570 { USB_DEVICE(0x04ca, 0x3801), .driver_info = BTUSB_MEDIATEK |
571 BTUSB_WIDEBAND_SPEECH |
572 BTUSB_VALID_LE_STATES },
573
574 /* Additional MediaTek MT7668 Bluetooth devices */
575 { USB_DEVICE(0x043e, 0x3109), .driver_info = BTUSB_MEDIATEK |
576 BTUSB_WIDEBAND_SPEECH |
577 BTUSB_VALID_LE_STATES },
578
579 /* Additional MediaTek MT7921 Bluetooth devices */
580 { USB_DEVICE(0x0489, 0xe0c8), .driver_info = BTUSB_MEDIATEK |
581 BTUSB_WIDEBAND_SPEECH |
582 BTUSB_VALID_LE_STATES },
583 { USB_DEVICE(0x0489, 0xe0e0), .driver_info = BTUSB_MEDIATEK |
584 BTUSB_WIDEBAND_SPEECH |
585 BTUSB_VALID_LE_STATES },
586 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK |
587 BTUSB_WIDEBAND_SPEECH |
588 BTUSB_VALID_LE_STATES },
589 { USB_DEVICE(0x04ca, 0x3802), .driver_info = BTUSB_MEDIATEK |
590 BTUSB_WIDEBAND_SPEECH |
591 BTUSB_VALID_LE_STATES },
592 { USB_DEVICE(0x13d3, 0x3563), .driver_info = BTUSB_MEDIATEK |
593 BTUSB_WIDEBAND_SPEECH |
594 BTUSB_VALID_LE_STATES },
595 { USB_DEVICE(0x13d3, 0x3564), .driver_info = BTUSB_MEDIATEK |
596 BTUSB_WIDEBAND_SPEECH |
597 BTUSB_VALID_LE_STATES },
598 { USB_DEVICE(0x13d3, 0x3567), .driver_info = BTUSB_MEDIATEK |
599 BTUSB_WIDEBAND_SPEECH |
600 BTUSB_VALID_LE_STATES },
601 { USB_DEVICE(0x13d3, 0x3578), .driver_info = BTUSB_MEDIATEK |
602 BTUSB_WIDEBAND_SPEECH |
603 BTUSB_VALID_LE_STATES },
604 { USB_DEVICE(0x13d3, 0x3583), .driver_info = BTUSB_MEDIATEK |
605 BTUSB_WIDEBAND_SPEECH |
606 BTUSB_VALID_LE_STATES },
607 { USB_DEVICE(0x0489, 0xe0cd), .driver_info = BTUSB_MEDIATEK |
608 BTUSB_WIDEBAND_SPEECH |
609 BTUSB_VALID_LE_STATES },
610 { USB_DEVICE(0x0e8d, 0x0608), .driver_info = BTUSB_MEDIATEK |
611 BTUSB_WIDEBAND_SPEECH |
612 BTUSB_VALID_LE_STATES },
613
614 /* MediaTek MT7922A Bluetooth devices */
615 { USB_DEVICE(0x0489, 0xe0d8), .driver_info = BTUSB_MEDIATEK |
616 BTUSB_WIDEBAND_SPEECH |
617 BTUSB_VALID_LE_STATES },
618 { USB_DEVICE(0x0489, 0xe0d9), .driver_info = BTUSB_MEDIATEK |
619 BTUSB_WIDEBAND_SPEECH |
620 BTUSB_VALID_LE_STATES },
621 { USB_DEVICE(0x0489, 0xe0f5), .driver_info = BTUSB_MEDIATEK |
622 BTUSB_WIDEBAND_SPEECH |
623 BTUSB_VALID_LE_STATES },
624 { USB_DEVICE(0x13d3, 0x3568), .driver_info = BTUSB_MEDIATEK |
625 BTUSB_WIDEBAND_SPEECH |
626 BTUSB_VALID_LE_STATES },
627 { USB_DEVICE(0x0489, 0xe0e2), .driver_info = BTUSB_MEDIATEK |
628 BTUSB_WIDEBAND_SPEECH |
629 BTUSB_VALID_LE_STATES },
630 { USB_DEVICE(0x0489, 0xe0e4), .driver_info = BTUSB_MEDIATEK |
631 BTUSB_WIDEBAND_SPEECH |
632 BTUSB_VALID_LE_STATES },
633 { USB_DEVICE(0x0489, 0xe0f1), .driver_info = BTUSB_MEDIATEK |
634 BTUSB_WIDEBAND_SPEECH |
635 BTUSB_VALID_LE_STATES },
636 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK |
637 BTUSB_WIDEBAND_SPEECH |
638 BTUSB_VALID_LE_STATES },
639 { USB_DEVICE(0x0489, 0xe0f5), .driver_info = BTUSB_MEDIATEK |
640 BTUSB_WIDEBAND_SPEECH |
641 BTUSB_VALID_LE_STATES },
642 { USB_DEVICE(0x0489, 0xe0f6), .driver_info = BTUSB_MEDIATEK |
643 BTUSB_WIDEBAND_SPEECH |
644 BTUSB_VALID_LE_STATES },
645 { USB_DEVICE(0x0489, 0xe102), .driver_info = BTUSB_MEDIATEK |
646 BTUSB_WIDEBAND_SPEECH |
647 BTUSB_VALID_LE_STATES },
648 { USB_DEVICE(0x04ca, 0x3804), .driver_info = BTUSB_MEDIATEK |
649 BTUSB_WIDEBAND_SPEECH |
650 BTUSB_VALID_LE_STATES },
651
652 /* Additional Realtek 8723AE Bluetooth devices */
653 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
654 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
655
656 /* Additional Realtek 8723BE Bluetooth devices */
657 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
658 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
659 { USB_DEVICE(0x04f2, 0xb49f), .driver_info = BTUSB_REALTEK },
660 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
661 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
662 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
663 { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK },
664
665 /* Additional Realtek 8723BU Bluetooth devices */
666 { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK },
667
668 /* Additional Realtek 8723DE Bluetooth devices */
669 { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK },
670 { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK },
671
672 /* Additional Realtek 8761BUV Bluetooth devices */
673 { USB_DEVICE(0x2357, 0x0604), .driver_info = BTUSB_REALTEK |
674 BTUSB_WIDEBAND_SPEECH },
675 { USB_DEVICE(0x0b05, 0x190e), .driver_info = BTUSB_REALTEK |
676 BTUSB_WIDEBAND_SPEECH },
677 { USB_DEVICE(0x2550, 0x8761), .driver_info = BTUSB_REALTEK |
678 BTUSB_WIDEBAND_SPEECH },
679 { USB_DEVICE(0x0bda, 0x8771), .driver_info = BTUSB_REALTEK |
680 BTUSB_WIDEBAND_SPEECH },
681 { USB_DEVICE(0x6655, 0x8771), .driver_info = BTUSB_REALTEK |
682 BTUSB_WIDEBAND_SPEECH },
683 { USB_DEVICE(0x7392, 0xc611), .driver_info = BTUSB_REALTEK |
684 BTUSB_WIDEBAND_SPEECH },
685 { USB_DEVICE(0x2b89, 0x8761), .driver_info = BTUSB_REALTEK |
686 BTUSB_WIDEBAND_SPEECH },
687
688 /* Additional Realtek 8821AE Bluetooth devices */
689 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
690 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
691 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
692 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
693 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
694
695 /* Additional Realtek 8822BE Bluetooth devices */
696 { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK },
697 { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK },
698
699 /* Additional Realtek 8822CE Bluetooth devices */
700 { USB_DEVICE(0x04ca, 0x4005), .driver_info = BTUSB_REALTEK |
701 BTUSB_WIDEBAND_SPEECH },
702 { USB_DEVICE(0x04c5, 0x161f), .driver_info = BTUSB_REALTEK |
703 BTUSB_WIDEBAND_SPEECH },
704 { USB_DEVICE(0x0b05, 0x18ef), .driver_info = BTUSB_REALTEK |
705 BTUSB_WIDEBAND_SPEECH },
706 { USB_DEVICE(0x13d3, 0x3548), .driver_info = BTUSB_REALTEK |
707 BTUSB_WIDEBAND_SPEECH },
708 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK |
709 BTUSB_WIDEBAND_SPEECH },
710 { USB_DEVICE(0x13d3, 0x3553), .driver_info = BTUSB_REALTEK |
711 BTUSB_WIDEBAND_SPEECH },
712 { USB_DEVICE(0x13d3, 0x3555), .driver_info = BTUSB_REALTEK |
713 BTUSB_WIDEBAND_SPEECH },
714 { USB_DEVICE(0x2ff8, 0x3051), .driver_info = BTUSB_REALTEK |
715 BTUSB_WIDEBAND_SPEECH },
716 { USB_DEVICE(0x1358, 0xc123), .driver_info = BTUSB_REALTEK |
717 BTUSB_WIDEBAND_SPEECH },
718 { USB_DEVICE(0x0bda, 0xc123), .driver_info = BTUSB_REALTEK |
719 BTUSB_WIDEBAND_SPEECH },
720 { USB_DEVICE(0x0cb5, 0xc547), .driver_info = BTUSB_REALTEK |
721 BTUSB_WIDEBAND_SPEECH },
722
723 /* Actions Semiconductor ATS2851 based devices */
724 { USB_DEVICE(0x10d7, 0xb012), .driver_info = BTUSB_ACTIONS_SEMI },
725
726 /* Silicon Wave based devices */
727 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE },
728
729 { } /* Terminating entry */
730 };
731
732 /* The Bluetooth USB module build into some devices needs to be reset on resume,
733 * this is a problem with the platform (likely shutting off all power) not with
734 * the module itself. So we use a DMI list to match known broken platforms.
735 */
736 static const struct dmi_system_id btusb_needs_reset_resume_table[] = {
737 {
738 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */
739 .matches = {
740 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
741 DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"),
742 },
743 },
744 {
745 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */
746 .matches = {
747 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
748 DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"),
749 },
750 },
751 {
752 /* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */
753 .matches = {
754 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
755 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"),
756 },
757 },
758 {}
759 };
760
761 struct qca_dump_info {
762 /* fields for dump collection */
763 u16 id_vendor;
764 u16 id_product;
765 u32 fw_version;
766 u32 controller_id;
767 u32 ram_dump_size;
768 u16 ram_dump_seqno;
769 };
770
771 #define BTUSB_MAX_ISOC_FRAMES 10
772
773 #define BTUSB_INTR_RUNNING 0
774 #define BTUSB_BULK_RUNNING 1
775 #define BTUSB_ISOC_RUNNING 2
776 #define BTUSB_SUSPENDING 3
777 #define BTUSB_DID_ISO_RESUME 4
778 #define BTUSB_BOOTLOADER 5
779 #define BTUSB_DOWNLOADING 6
780 #define BTUSB_FIRMWARE_LOADED 7
781 #define BTUSB_FIRMWARE_FAILED 8
782 #define BTUSB_BOOTING 9
783 #define BTUSB_DIAG_RUNNING 10
784 #define BTUSB_OOB_WAKE_ENABLED 11
785 #define BTUSB_HW_RESET_ACTIVE 12
786 #define BTUSB_TX_WAIT_VND_EVT 13
787 #define BTUSB_WAKEUP_AUTOSUSPEND 14
788 #define BTUSB_USE_ALT3_FOR_WBS 15
789 #define BTUSB_ALT6_CONTINUOUS_TX 16
790 #define BTUSB_HW_SSR_ACTIVE 17
791
792 struct btusb_data {
793 struct hci_dev *hdev;
794 struct usb_device *udev;
795 struct usb_interface *intf;
796 struct usb_interface *isoc;
797 struct usb_interface *diag;
798 unsigned isoc_ifnum;
799
800 unsigned long flags;
801
802 bool poll_sync;
803 int intr_interval;
804 struct work_struct work;
805 struct work_struct waker;
806 struct delayed_work rx_work;
807
808 struct sk_buff_head acl_q;
809
810 struct usb_anchor deferred;
811 struct usb_anchor tx_anchor;
812 int tx_in_flight;
813 spinlock_t txlock;
814
815 struct usb_anchor intr_anchor;
816 struct usb_anchor bulk_anchor;
817 struct usb_anchor isoc_anchor;
818 struct usb_anchor diag_anchor;
819 struct usb_anchor ctrl_anchor;
820 spinlock_t rxlock;
821
822 struct sk_buff *evt_skb;
823 struct sk_buff *acl_skb;
824 struct sk_buff *sco_skb;
825
826 struct usb_endpoint_descriptor *intr_ep;
827 struct usb_endpoint_descriptor *bulk_tx_ep;
828 struct usb_endpoint_descriptor *bulk_rx_ep;
829 struct usb_endpoint_descriptor *isoc_tx_ep;
830 struct usb_endpoint_descriptor *isoc_rx_ep;
831 struct usb_endpoint_descriptor *diag_tx_ep;
832 struct usb_endpoint_descriptor *diag_rx_ep;
833
834 struct gpio_desc *reset_gpio;
835
836 __u8 cmdreq_type;
837 __u8 cmdreq;
838
839 unsigned int sco_num;
840 unsigned int air_mode;
841 bool usb_alt6_packet_flow;
842 int isoc_altsetting;
843 int suspend_count;
844
845 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
846 int (*recv_acl)(struct hci_dev *hdev, struct sk_buff *skb);
847 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
848
849 int (*setup_on_usb)(struct hci_dev *hdev);
850
851 int oob_wake_irq; /* irq for out-of-band wake-on-bt */
852 unsigned cmd_timeout_cnt;
853
854 struct qca_dump_info qca_dump;
855 };
856
btusb_reset(struct hci_dev * hdev)857 static void btusb_reset(struct hci_dev *hdev)
858 {
859 struct btusb_data *data;
860 int err;
861
862 if (hdev->reset) {
863 hdev->reset(hdev);
864 return;
865 }
866
867 data = hci_get_drvdata(hdev);
868 /* This is not an unbalanced PM reference since the device will reset */
869 err = usb_autopm_get_interface(data->intf);
870 if (err) {
871 bt_dev_err(hdev, "Failed usb_autopm_get_interface: %d", err);
872 return;
873 }
874
875 bt_dev_err(hdev, "Resetting usb device.");
876 usb_queue_reset_device(data->intf);
877 }
878
btusb_intel_cmd_timeout(struct hci_dev * hdev)879 static void btusb_intel_cmd_timeout(struct hci_dev *hdev)
880 {
881 struct btusb_data *data = hci_get_drvdata(hdev);
882 struct gpio_desc *reset_gpio = data->reset_gpio;
883 struct btintel_data *intel_data = hci_get_priv(hdev);
884
885 if (++data->cmd_timeout_cnt < 5)
886 return;
887
888 if (intel_data->acpi_reset_method) {
889 if (test_and_set_bit(INTEL_ACPI_RESET_ACTIVE, intel_data->flags)) {
890 bt_dev_err(hdev, "acpi: last reset failed ? Not resetting again");
891 return;
892 }
893
894 bt_dev_err(hdev, "Initiating acpi reset method");
895 /* If ACPI reset method fails, lets try with legacy GPIO
896 * toggling
897 */
898 if (!intel_data->acpi_reset_method(hdev)) {
899 return;
900 }
901 }
902
903 if (!reset_gpio) {
904 btusb_reset(hdev);
905 return;
906 }
907
908 /*
909 * Toggle the hard reset line if the platform provides one. The reset
910 * is going to yank the device off the USB and then replug. So doing
911 * once is enough. The cleanup is handled correctly on the way out
912 * (standard USB disconnect), and the new device is detected cleanly
913 * and bound to the driver again like it should be.
914 */
915 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
916 bt_dev_err(hdev, "last reset failed? Not resetting again");
917 return;
918 }
919
920 bt_dev_err(hdev, "Initiating HW reset via gpio");
921 gpiod_set_value_cansleep(reset_gpio, 1);
922 msleep(100);
923 gpiod_set_value_cansleep(reset_gpio, 0);
924 }
925
926 #define RTK_DEVCOREDUMP_CODE_MEMDUMP 0x01
927 #define RTK_DEVCOREDUMP_CODE_HW_ERR 0x02
928 #define RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT 0x03
929
930 #define RTK_SUB_EVENT_CODE_COREDUMP 0x34
931
932 struct rtk_dev_coredump_hdr {
933 u8 type;
934 u8 code;
935 u8 reserved[2];
936 } __packed;
937
btusb_rtl_alloc_devcoredump(struct hci_dev * hdev,struct rtk_dev_coredump_hdr * hdr,u8 * buf,u32 len)938 static inline void btusb_rtl_alloc_devcoredump(struct hci_dev *hdev,
939 struct rtk_dev_coredump_hdr *hdr, u8 *buf, u32 len)
940 {
941 struct sk_buff *skb;
942
943 skb = alloc_skb(len + sizeof(*hdr), GFP_ATOMIC);
944 if (!skb)
945 return;
946
947 skb_put_data(skb, hdr, sizeof(*hdr));
948 if (len)
949 skb_put_data(skb, buf, len);
950
951 if (!hci_devcd_init(hdev, skb->len)) {
952 hci_devcd_append(hdev, skb);
953 hci_devcd_complete(hdev);
954 } else {
955 bt_dev_err(hdev, "RTL: Failed to generate devcoredump");
956 kfree_skb(skb);
957 }
958 }
959
btusb_rtl_cmd_timeout(struct hci_dev * hdev)960 static void btusb_rtl_cmd_timeout(struct hci_dev *hdev)
961 {
962 struct btusb_data *data = hci_get_drvdata(hdev);
963 struct gpio_desc *reset_gpio = data->reset_gpio;
964 struct rtk_dev_coredump_hdr hdr = {
965 .type = RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT,
966 };
967
968 btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0);
969
970 if (++data->cmd_timeout_cnt < 5)
971 return;
972
973 if (!reset_gpio) {
974 btusb_reset(hdev);
975 return;
976 }
977
978 /* Toggle the hard reset line. The Realtek device is going to
979 * yank itself off the USB and then replug. The cleanup is handled
980 * correctly on the way out (standard USB disconnect), and the new
981 * device is detected cleanly and bound to the driver again like
982 * it should be.
983 */
984 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
985 bt_dev_err(hdev, "last reset failed? Not resetting again");
986 return;
987 }
988
989 bt_dev_err(hdev, "Reset Realtek device via gpio");
990 gpiod_set_value_cansleep(reset_gpio, 1);
991 msleep(200);
992 gpiod_set_value_cansleep(reset_gpio, 0);
993 }
994
btusb_rtl_hw_error(struct hci_dev * hdev,u8 code)995 static void btusb_rtl_hw_error(struct hci_dev *hdev, u8 code)
996 {
997 struct rtk_dev_coredump_hdr hdr = {
998 .type = RTK_DEVCOREDUMP_CODE_HW_ERR,
999 .code = code,
1000 };
1001
1002 bt_dev_err(hdev, "RTL: hw err, trigger devcoredump (%d)", code);
1003
1004 btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0);
1005 }
1006
btusb_qca_cmd_timeout(struct hci_dev * hdev)1007 static void btusb_qca_cmd_timeout(struct hci_dev *hdev)
1008 {
1009 struct btusb_data *data = hci_get_drvdata(hdev);
1010 struct gpio_desc *reset_gpio = data->reset_gpio;
1011
1012 if (test_bit(BTUSB_HW_SSR_ACTIVE, &data->flags)) {
1013 bt_dev_info(hdev, "Ramdump in progress, defer cmd_timeout");
1014 return;
1015 }
1016
1017 if (++data->cmd_timeout_cnt < 5)
1018 return;
1019
1020 if (reset_gpio) {
1021 bt_dev_err(hdev, "Reset qca device via bt_en gpio");
1022
1023 /* Toggle the hard reset line. The qca bt device is going to
1024 * yank itself off the USB and then replug. The cleanup is handled
1025 * correctly on the way out (standard USB disconnect), and the new
1026 * device is detected cleanly and bound to the driver again like
1027 * it should be.
1028 */
1029 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
1030 bt_dev_err(hdev, "last reset failed? Not resetting again");
1031 return;
1032 }
1033
1034 gpiod_set_value_cansleep(reset_gpio, 0);
1035 msleep(200);
1036 gpiod_set_value_cansleep(reset_gpio, 1);
1037
1038 return;
1039 }
1040
1041 btusb_reset(hdev);
1042 }
1043
btusb_free_frags(struct btusb_data * data)1044 static inline void btusb_free_frags(struct btusb_data *data)
1045 {
1046 unsigned long flags;
1047
1048 spin_lock_irqsave(&data->rxlock, flags);
1049
1050 dev_kfree_skb_irq(data->evt_skb);
1051 data->evt_skb = NULL;
1052
1053 dev_kfree_skb_irq(data->acl_skb);
1054 data->acl_skb = NULL;
1055
1056 dev_kfree_skb_irq(data->sco_skb);
1057 data->sco_skb = NULL;
1058
1059 spin_unlock_irqrestore(&data->rxlock, flags);
1060 }
1061
btusb_recv_event(struct btusb_data * data,struct sk_buff * skb)1062 static int btusb_recv_event(struct btusb_data *data, struct sk_buff *skb)
1063 {
1064 if (data->intr_interval) {
1065 /* Trigger dequeue immediatelly if an event is received */
1066 schedule_delayed_work(&data->rx_work, 0);
1067 }
1068
1069 return data->recv_event(data->hdev, skb);
1070 }
1071
btusb_recv_intr(struct btusb_data * data,void * buffer,int count)1072 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
1073 {
1074 struct sk_buff *skb;
1075 unsigned long flags;
1076 int err = 0;
1077
1078 spin_lock_irqsave(&data->rxlock, flags);
1079 skb = data->evt_skb;
1080
1081 while (count) {
1082 int len;
1083
1084 if (!skb) {
1085 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
1086 if (!skb) {
1087 err = -ENOMEM;
1088 break;
1089 }
1090
1091 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
1092 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE;
1093 }
1094
1095 len = min_t(uint, hci_skb_expect(skb), count);
1096 skb_put_data(skb, buffer, len);
1097
1098 count -= len;
1099 buffer += len;
1100 hci_skb_expect(skb) -= len;
1101
1102 if (skb->len == HCI_EVENT_HDR_SIZE) {
1103 /* Complete event header */
1104 hci_skb_expect(skb) = hci_event_hdr(skb)->plen;
1105
1106 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
1107 kfree_skb(skb);
1108 skb = NULL;
1109
1110 err = -EILSEQ;
1111 break;
1112 }
1113 }
1114
1115 if (!hci_skb_expect(skb)) {
1116 /* Complete frame */
1117 btusb_recv_event(data, skb);
1118 skb = NULL;
1119 }
1120 }
1121
1122 data->evt_skb = skb;
1123 spin_unlock_irqrestore(&data->rxlock, flags);
1124
1125 return err;
1126 }
1127
btusb_recv_acl(struct btusb_data * data,struct sk_buff * skb)1128 static int btusb_recv_acl(struct btusb_data *data, struct sk_buff *skb)
1129 {
1130 /* Only queue ACL packet if intr_interval is set as it means
1131 * force_poll_sync has been enabled.
1132 */
1133 if (!data->intr_interval)
1134 return data->recv_acl(data->hdev, skb);
1135
1136 skb_queue_tail(&data->acl_q, skb);
1137 schedule_delayed_work(&data->rx_work, data->intr_interval);
1138
1139 return 0;
1140 }
1141
btusb_recv_bulk(struct btusb_data * data,void * buffer,int count)1142 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
1143 {
1144 struct sk_buff *skb;
1145 unsigned long flags;
1146 int err = 0;
1147
1148 spin_lock_irqsave(&data->rxlock, flags);
1149 skb = data->acl_skb;
1150
1151 while (count) {
1152 int len;
1153
1154 if (!skb) {
1155 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
1156 if (!skb) {
1157 err = -ENOMEM;
1158 break;
1159 }
1160
1161 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT;
1162 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE;
1163 }
1164
1165 len = min_t(uint, hci_skb_expect(skb), count);
1166 skb_put_data(skb, buffer, len);
1167
1168 count -= len;
1169 buffer += len;
1170 hci_skb_expect(skb) -= len;
1171
1172 if (skb->len == HCI_ACL_HDR_SIZE) {
1173 __le16 dlen = hci_acl_hdr(skb)->dlen;
1174
1175 /* Complete ACL header */
1176 hci_skb_expect(skb) = __le16_to_cpu(dlen);
1177
1178 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
1179 kfree_skb(skb);
1180 skb = NULL;
1181
1182 err = -EILSEQ;
1183 break;
1184 }
1185 }
1186
1187 if (!hci_skb_expect(skb)) {
1188 /* Complete frame */
1189 btusb_recv_acl(data, skb);
1190 skb = NULL;
1191 }
1192 }
1193
1194 data->acl_skb = skb;
1195 spin_unlock_irqrestore(&data->rxlock, flags);
1196
1197 return err;
1198 }
1199
btusb_validate_sco_handle(struct hci_dev * hdev,struct hci_sco_hdr * hdr)1200 static bool btusb_validate_sco_handle(struct hci_dev *hdev,
1201 struct hci_sco_hdr *hdr)
1202 {
1203 __u16 handle;
1204
1205 if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL))
1206 // Can't validate, userspace controls everything.
1207 return true;
1208
1209 /*
1210 * USB isochronous transfers are not designed to be reliable and may
1211 * lose fragments. When this happens, the next first fragment
1212 * encountered might actually be a continuation fragment.
1213 * Validate the handle to detect it and drop it, or else the upper
1214 * layer will get garbage for a while.
1215 */
1216
1217 handle = hci_handle(__le16_to_cpu(hdr->handle));
1218
1219 switch (hci_conn_lookup_type(hdev, handle)) {
1220 case SCO_LINK:
1221 case ESCO_LINK:
1222 return true;
1223 default:
1224 return false;
1225 }
1226 }
1227
btusb_recv_isoc(struct btusb_data * data,void * buffer,int count)1228 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
1229 {
1230 struct sk_buff *skb;
1231 unsigned long flags;
1232 int err = 0;
1233
1234 spin_lock_irqsave(&data->rxlock, flags);
1235 skb = data->sco_skb;
1236
1237 while (count) {
1238 int len;
1239
1240 if (!skb) {
1241 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
1242 if (!skb) {
1243 err = -ENOMEM;
1244 break;
1245 }
1246
1247 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT;
1248 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE;
1249 }
1250
1251 len = min_t(uint, hci_skb_expect(skb), count);
1252 skb_put_data(skb, buffer, len);
1253
1254 count -= len;
1255 buffer += len;
1256 hci_skb_expect(skb) -= len;
1257
1258 if (skb->len == HCI_SCO_HDR_SIZE) {
1259 /* Complete SCO header */
1260 struct hci_sco_hdr *hdr = hci_sco_hdr(skb);
1261
1262 hci_skb_expect(skb) = hdr->dlen;
1263
1264 if (skb_tailroom(skb) < hci_skb_expect(skb) ||
1265 !btusb_validate_sco_handle(data->hdev, hdr)) {
1266 kfree_skb(skb);
1267 skb = NULL;
1268
1269 err = -EILSEQ;
1270 break;
1271 }
1272 }
1273
1274 if (!hci_skb_expect(skb)) {
1275 /* Complete frame */
1276 hci_recv_frame(data->hdev, skb);
1277 skb = NULL;
1278 }
1279 }
1280
1281 data->sco_skb = skb;
1282 spin_unlock_irqrestore(&data->rxlock, flags);
1283
1284 return err;
1285 }
1286
btusb_intr_complete(struct urb * urb)1287 static void btusb_intr_complete(struct urb *urb)
1288 {
1289 struct hci_dev *hdev = urb->context;
1290 struct btusb_data *data = hci_get_drvdata(hdev);
1291 int err;
1292
1293 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1294 urb->actual_length);
1295
1296 if (!test_bit(HCI_RUNNING, &hdev->flags))
1297 return;
1298
1299 if (urb->status == 0) {
1300 hdev->stat.byte_rx += urb->actual_length;
1301
1302 if (btusb_recv_intr(data, urb->transfer_buffer,
1303 urb->actual_length) < 0) {
1304 bt_dev_err(hdev, "corrupted event packet");
1305 hdev->stat.err_rx++;
1306 }
1307 } else if (urb->status == -ENOENT) {
1308 /* Avoid suspend failed when usb_kill_urb */
1309 return;
1310 }
1311
1312 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
1313 return;
1314
1315 usb_mark_last_busy(data->udev);
1316 usb_anchor_urb(urb, &data->intr_anchor);
1317
1318 err = usb_submit_urb(urb, GFP_ATOMIC);
1319 if (err < 0) {
1320 /* -EPERM: urb is being killed;
1321 * -ENODEV: device got disconnected
1322 */
1323 if (err != -EPERM && err != -ENODEV)
1324 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1325 urb, -err);
1326 if (err != -EPERM)
1327 hci_cmd_sync_cancel(hdev, -err);
1328 usb_unanchor_urb(urb);
1329 }
1330 }
1331
btusb_submit_intr_urb(struct hci_dev * hdev,gfp_t mem_flags)1332 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
1333 {
1334 struct btusb_data *data = hci_get_drvdata(hdev);
1335 struct urb *urb;
1336 unsigned char *buf;
1337 unsigned int pipe;
1338 int err, size;
1339
1340 BT_DBG("%s", hdev->name);
1341
1342 if (!data->intr_ep)
1343 return -ENODEV;
1344
1345 urb = usb_alloc_urb(0, mem_flags);
1346 if (!urb)
1347 return -ENOMEM;
1348
1349 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
1350
1351 buf = kmalloc(size, mem_flags);
1352 if (!buf) {
1353 usb_free_urb(urb);
1354 return -ENOMEM;
1355 }
1356
1357 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
1358
1359 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
1360 btusb_intr_complete, hdev, data->intr_ep->bInterval);
1361
1362 urb->transfer_flags |= URB_FREE_BUFFER;
1363
1364 usb_anchor_urb(urb, &data->intr_anchor);
1365
1366 err = usb_submit_urb(urb, mem_flags);
1367 if (err < 0) {
1368 if (err != -EPERM && err != -ENODEV)
1369 bt_dev_err(hdev, "urb %p submission failed (%d)",
1370 urb, -err);
1371 if (err != -EPERM)
1372 hci_cmd_sync_cancel(hdev, -err);
1373 usb_unanchor_urb(urb);
1374 }
1375
1376 /* Only initialize intr_interval if URB poll sync is enabled */
1377 if (!data->poll_sync)
1378 goto done;
1379
1380 /* The units are frames (milliseconds) for full and low speed devices,
1381 * and microframes (1/8 millisecond) for highspeed and SuperSpeed
1382 * devices.
1383 *
1384 * This is done once on open/resume so it shouldn't change even if
1385 * force_poll_sync changes.
1386 */
1387 switch (urb->dev->speed) {
1388 case USB_SPEED_SUPER_PLUS:
1389 case USB_SPEED_SUPER: /* units are 125us */
1390 data->intr_interval = usecs_to_jiffies(urb->interval * 125);
1391 break;
1392 default:
1393 data->intr_interval = msecs_to_jiffies(urb->interval);
1394 break;
1395 }
1396
1397 done:
1398 usb_free_urb(urb);
1399
1400 return err;
1401 }
1402
btusb_bulk_complete(struct urb * urb)1403 static void btusb_bulk_complete(struct urb *urb)
1404 {
1405 struct hci_dev *hdev = urb->context;
1406 struct btusb_data *data = hci_get_drvdata(hdev);
1407 int err;
1408
1409 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1410 urb->actual_length);
1411
1412 if (!test_bit(HCI_RUNNING, &hdev->flags))
1413 return;
1414
1415 if (urb->status == 0) {
1416 hdev->stat.byte_rx += urb->actual_length;
1417
1418 if (data->recv_bulk(data, urb->transfer_buffer,
1419 urb->actual_length) < 0) {
1420 bt_dev_err(hdev, "corrupted ACL packet");
1421 hdev->stat.err_rx++;
1422 }
1423 } else if (urb->status == -ENOENT) {
1424 /* Avoid suspend failed when usb_kill_urb */
1425 return;
1426 }
1427
1428 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
1429 return;
1430
1431 usb_anchor_urb(urb, &data->bulk_anchor);
1432 usb_mark_last_busy(data->udev);
1433
1434 err = usb_submit_urb(urb, GFP_ATOMIC);
1435 if (err < 0) {
1436 /* -EPERM: urb is being killed;
1437 * -ENODEV: device got disconnected
1438 */
1439 if (err != -EPERM && err != -ENODEV)
1440 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1441 urb, -err);
1442 usb_unanchor_urb(urb);
1443 }
1444 }
1445
btusb_submit_bulk_urb(struct hci_dev * hdev,gfp_t mem_flags)1446 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
1447 {
1448 struct btusb_data *data = hci_get_drvdata(hdev);
1449 struct urb *urb;
1450 unsigned char *buf;
1451 unsigned int pipe;
1452 int err, size = HCI_MAX_FRAME_SIZE;
1453
1454 BT_DBG("%s", hdev->name);
1455
1456 if (!data->bulk_rx_ep)
1457 return -ENODEV;
1458
1459 urb = usb_alloc_urb(0, mem_flags);
1460 if (!urb)
1461 return -ENOMEM;
1462
1463 buf = kmalloc(size, mem_flags);
1464 if (!buf) {
1465 usb_free_urb(urb);
1466 return -ENOMEM;
1467 }
1468
1469 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
1470
1471 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1472 btusb_bulk_complete, hdev);
1473
1474 urb->transfer_flags |= URB_FREE_BUFFER;
1475
1476 usb_mark_last_busy(data->udev);
1477 usb_anchor_urb(urb, &data->bulk_anchor);
1478
1479 err = usb_submit_urb(urb, mem_flags);
1480 if (err < 0) {
1481 if (err != -EPERM && err != -ENODEV)
1482 bt_dev_err(hdev, "urb %p submission failed (%d)",
1483 urb, -err);
1484 usb_unanchor_urb(urb);
1485 }
1486
1487 usb_free_urb(urb);
1488
1489 return err;
1490 }
1491
btusb_isoc_complete(struct urb * urb)1492 static void btusb_isoc_complete(struct urb *urb)
1493 {
1494 struct hci_dev *hdev = urb->context;
1495 struct btusb_data *data = hci_get_drvdata(hdev);
1496 int i, err;
1497
1498 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1499 urb->actual_length);
1500
1501 if (!test_bit(HCI_RUNNING, &hdev->flags))
1502 return;
1503
1504 if (urb->status == 0) {
1505 for (i = 0; i < urb->number_of_packets; i++) {
1506 unsigned int offset = urb->iso_frame_desc[i].offset;
1507 unsigned int length = urb->iso_frame_desc[i].actual_length;
1508
1509 if (urb->iso_frame_desc[i].status)
1510 continue;
1511
1512 hdev->stat.byte_rx += length;
1513
1514 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
1515 length) < 0) {
1516 bt_dev_err(hdev, "corrupted SCO packet");
1517 hdev->stat.err_rx++;
1518 }
1519 }
1520 } else if (urb->status == -ENOENT) {
1521 /* Avoid suspend failed when usb_kill_urb */
1522 return;
1523 }
1524
1525 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
1526 return;
1527
1528 usb_anchor_urb(urb, &data->isoc_anchor);
1529
1530 err = usb_submit_urb(urb, GFP_ATOMIC);
1531 if (err < 0) {
1532 /* -EPERM: urb is being killed;
1533 * -ENODEV: device got disconnected
1534 */
1535 if (err != -EPERM && err != -ENODEV)
1536 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1537 urb, -err);
1538 usb_unanchor_urb(urb);
1539 }
1540 }
1541
__fill_isoc_descriptor_msbc(struct urb * urb,int len,int mtu,struct btusb_data * data)1542 static inline void __fill_isoc_descriptor_msbc(struct urb *urb, int len,
1543 int mtu, struct btusb_data *data)
1544 {
1545 int i = 0, offset = 0;
1546 unsigned int interval;
1547
1548 BT_DBG("len %d mtu %d", len, mtu);
1549
1550 /* For mSBC ALT 6 settings some chips need to transmit the data
1551 * continuously without the zero length of USB packets.
1552 */
1553 if (test_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags))
1554 goto ignore_usb_alt6_packet_flow;
1555
1556 /* For mSBC ALT 6 setting the host will send the packet at continuous
1557 * flow. As per core spec 5, vol 4, part B, table 2.1. For ALT setting
1558 * 6 the HCI PACKET INTERVAL should be 7.5ms for every usb packets.
1559 * To maintain the rate we send 63bytes of usb packets alternatively for
1560 * 7ms and 8ms to maintain the rate as 7.5ms.
1561 */
1562 if (data->usb_alt6_packet_flow) {
1563 interval = 7;
1564 data->usb_alt6_packet_flow = false;
1565 } else {
1566 interval = 6;
1567 data->usb_alt6_packet_flow = true;
1568 }
1569
1570 for (i = 0; i < interval; i++) {
1571 urb->iso_frame_desc[i].offset = offset;
1572 urb->iso_frame_desc[i].length = offset;
1573 }
1574
1575 ignore_usb_alt6_packet_flow:
1576 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1577 urb->iso_frame_desc[i].offset = offset;
1578 urb->iso_frame_desc[i].length = len;
1579 i++;
1580 }
1581
1582 urb->number_of_packets = i;
1583 }
1584
__fill_isoc_descriptor(struct urb * urb,int len,int mtu)1585 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
1586 {
1587 int i, offset = 0;
1588
1589 BT_DBG("len %d mtu %d", len, mtu);
1590
1591 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
1592 i++, offset += mtu, len -= mtu) {
1593 urb->iso_frame_desc[i].offset = offset;
1594 urb->iso_frame_desc[i].length = mtu;
1595 }
1596
1597 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1598 urb->iso_frame_desc[i].offset = offset;
1599 urb->iso_frame_desc[i].length = len;
1600 i++;
1601 }
1602
1603 urb->number_of_packets = i;
1604 }
1605
btusb_submit_isoc_urb(struct hci_dev * hdev,gfp_t mem_flags)1606 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
1607 {
1608 struct btusb_data *data = hci_get_drvdata(hdev);
1609 struct urb *urb;
1610 unsigned char *buf;
1611 unsigned int pipe;
1612 int err, size;
1613
1614 BT_DBG("%s", hdev->name);
1615
1616 if (!data->isoc_rx_ep)
1617 return -ENODEV;
1618
1619 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
1620 if (!urb)
1621 return -ENOMEM;
1622
1623 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
1624 BTUSB_MAX_ISOC_FRAMES;
1625
1626 buf = kmalloc(size, mem_flags);
1627 if (!buf) {
1628 usb_free_urb(urb);
1629 return -ENOMEM;
1630 }
1631
1632 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
1633
1634 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
1635 hdev, data->isoc_rx_ep->bInterval);
1636
1637 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
1638
1639 __fill_isoc_descriptor(urb, size,
1640 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
1641
1642 usb_anchor_urb(urb, &data->isoc_anchor);
1643
1644 err = usb_submit_urb(urb, mem_flags);
1645 if (err < 0) {
1646 if (err != -EPERM && err != -ENODEV)
1647 bt_dev_err(hdev, "urb %p submission failed (%d)",
1648 urb, -err);
1649 usb_unanchor_urb(urb);
1650 }
1651
1652 usb_free_urb(urb);
1653
1654 return err;
1655 }
1656
btusb_diag_complete(struct urb * urb)1657 static void btusb_diag_complete(struct urb *urb)
1658 {
1659 struct hci_dev *hdev = urb->context;
1660 struct btusb_data *data = hci_get_drvdata(hdev);
1661 int err;
1662
1663 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1664 urb->actual_length);
1665
1666 if (urb->status == 0) {
1667 struct sk_buff *skb;
1668
1669 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC);
1670 if (skb) {
1671 skb_put_data(skb, urb->transfer_buffer,
1672 urb->actual_length);
1673 hci_recv_diag(hdev, skb);
1674 }
1675 } else if (urb->status == -ENOENT) {
1676 /* Avoid suspend failed when usb_kill_urb */
1677 return;
1678 }
1679
1680 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags))
1681 return;
1682
1683 usb_anchor_urb(urb, &data->diag_anchor);
1684 usb_mark_last_busy(data->udev);
1685
1686 err = usb_submit_urb(urb, GFP_ATOMIC);
1687 if (err < 0) {
1688 /* -EPERM: urb is being killed;
1689 * -ENODEV: device got disconnected
1690 */
1691 if (err != -EPERM && err != -ENODEV)
1692 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1693 urb, -err);
1694 usb_unanchor_urb(urb);
1695 }
1696 }
1697
btusb_submit_diag_urb(struct hci_dev * hdev,gfp_t mem_flags)1698 static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags)
1699 {
1700 struct btusb_data *data = hci_get_drvdata(hdev);
1701 struct urb *urb;
1702 unsigned char *buf;
1703 unsigned int pipe;
1704 int err, size = HCI_MAX_FRAME_SIZE;
1705
1706 BT_DBG("%s", hdev->name);
1707
1708 if (!data->diag_rx_ep)
1709 return -ENODEV;
1710
1711 urb = usb_alloc_urb(0, mem_flags);
1712 if (!urb)
1713 return -ENOMEM;
1714
1715 buf = kmalloc(size, mem_flags);
1716 if (!buf) {
1717 usb_free_urb(urb);
1718 return -ENOMEM;
1719 }
1720
1721 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress);
1722
1723 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1724 btusb_diag_complete, hdev);
1725
1726 urb->transfer_flags |= URB_FREE_BUFFER;
1727
1728 usb_mark_last_busy(data->udev);
1729 usb_anchor_urb(urb, &data->diag_anchor);
1730
1731 err = usb_submit_urb(urb, mem_flags);
1732 if (err < 0) {
1733 if (err != -EPERM && err != -ENODEV)
1734 bt_dev_err(hdev, "urb %p submission failed (%d)",
1735 urb, -err);
1736 usb_unanchor_urb(urb);
1737 }
1738
1739 usb_free_urb(urb);
1740
1741 return err;
1742 }
1743
btusb_tx_complete(struct urb * urb)1744 static void btusb_tx_complete(struct urb *urb)
1745 {
1746 struct sk_buff *skb = urb->context;
1747 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1748 struct btusb_data *data = hci_get_drvdata(hdev);
1749 unsigned long flags;
1750
1751 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1752 urb->actual_length);
1753
1754 if (!test_bit(HCI_RUNNING, &hdev->flags))
1755 goto done;
1756
1757 if (!urb->status) {
1758 hdev->stat.byte_tx += urb->transfer_buffer_length;
1759 } else {
1760 if (hci_skb_pkt_type(skb) == HCI_COMMAND_PKT)
1761 hci_cmd_sync_cancel(hdev, -urb->status);
1762 hdev->stat.err_tx++;
1763 }
1764
1765 done:
1766 spin_lock_irqsave(&data->txlock, flags);
1767 data->tx_in_flight--;
1768 spin_unlock_irqrestore(&data->txlock, flags);
1769
1770 kfree(urb->setup_packet);
1771
1772 kfree_skb(skb);
1773 }
1774
btusb_isoc_tx_complete(struct urb * urb)1775 static void btusb_isoc_tx_complete(struct urb *urb)
1776 {
1777 struct sk_buff *skb = urb->context;
1778 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1779
1780 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1781 urb->actual_length);
1782
1783 if (!test_bit(HCI_RUNNING, &hdev->flags))
1784 goto done;
1785
1786 if (!urb->status)
1787 hdev->stat.byte_tx += urb->transfer_buffer_length;
1788 else
1789 hdev->stat.err_tx++;
1790
1791 done:
1792 kfree(urb->setup_packet);
1793
1794 kfree_skb(skb);
1795 }
1796
btusb_open(struct hci_dev * hdev)1797 static int btusb_open(struct hci_dev *hdev)
1798 {
1799 struct btusb_data *data = hci_get_drvdata(hdev);
1800 int err;
1801
1802 BT_DBG("%s", hdev->name);
1803
1804 err = usb_autopm_get_interface(data->intf);
1805 if (err < 0)
1806 return err;
1807
1808 /* Patching USB firmware files prior to starting any URBs of HCI path
1809 * It is more safe to use USB bulk channel for downloading USB patch
1810 */
1811 if (data->setup_on_usb) {
1812 err = data->setup_on_usb(hdev);
1813 if (err < 0)
1814 goto setup_fail;
1815 }
1816
1817 data->intf->needs_remote_wakeup = 1;
1818
1819 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
1820 goto done;
1821
1822 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
1823 if (err < 0)
1824 goto failed;
1825
1826 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1827 if (err < 0) {
1828 usb_kill_anchored_urbs(&data->intr_anchor);
1829 goto failed;
1830 }
1831
1832 set_bit(BTUSB_BULK_RUNNING, &data->flags);
1833 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1834
1835 if (data->diag) {
1836 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL))
1837 set_bit(BTUSB_DIAG_RUNNING, &data->flags);
1838 }
1839
1840 done:
1841 usb_autopm_put_interface(data->intf);
1842 return 0;
1843
1844 failed:
1845 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1846 setup_fail:
1847 usb_autopm_put_interface(data->intf);
1848 return err;
1849 }
1850
btusb_stop_traffic(struct btusb_data * data)1851 static void btusb_stop_traffic(struct btusb_data *data)
1852 {
1853 usb_kill_anchored_urbs(&data->intr_anchor);
1854 usb_kill_anchored_urbs(&data->bulk_anchor);
1855 usb_kill_anchored_urbs(&data->isoc_anchor);
1856 usb_kill_anchored_urbs(&data->diag_anchor);
1857 usb_kill_anchored_urbs(&data->ctrl_anchor);
1858 }
1859
btusb_close(struct hci_dev * hdev)1860 static int btusb_close(struct hci_dev *hdev)
1861 {
1862 struct btusb_data *data = hci_get_drvdata(hdev);
1863 int err;
1864
1865 BT_DBG("%s", hdev->name);
1866
1867 cancel_delayed_work(&data->rx_work);
1868 cancel_work_sync(&data->work);
1869 cancel_work_sync(&data->waker);
1870
1871 skb_queue_purge(&data->acl_q);
1872
1873 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1874 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1875 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1876 clear_bit(BTUSB_DIAG_RUNNING, &data->flags);
1877
1878 btusb_stop_traffic(data);
1879 btusb_free_frags(data);
1880
1881 err = usb_autopm_get_interface(data->intf);
1882 if (err < 0)
1883 goto failed;
1884
1885 data->intf->needs_remote_wakeup = 0;
1886
1887 /* Enable remote wake up for auto-suspend */
1888 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags))
1889 data->intf->needs_remote_wakeup = 1;
1890
1891 usb_autopm_put_interface(data->intf);
1892
1893 failed:
1894 usb_scuttle_anchored_urbs(&data->deferred);
1895 return 0;
1896 }
1897
btusb_flush(struct hci_dev * hdev)1898 static int btusb_flush(struct hci_dev *hdev)
1899 {
1900 struct btusb_data *data = hci_get_drvdata(hdev);
1901
1902 BT_DBG("%s", hdev->name);
1903
1904 cancel_delayed_work(&data->rx_work);
1905
1906 skb_queue_purge(&data->acl_q);
1907
1908 usb_kill_anchored_urbs(&data->tx_anchor);
1909 btusb_free_frags(data);
1910
1911 return 0;
1912 }
1913
alloc_ctrl_urb(struct hci_dev * hdev,struct sk_buff * skb)1914 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
1915 {
1916 struct btusb_data *data = hci_get_drvdata(hdev);
1917 struct usb_ctrlrequest *dr;
1918 struct urb *urb;
1919 unsigned int pipe;
1920
1921 urb = usb_alloc_urb(0, GFP_KERNEL);
1922 if (!urb)
1923 return ERR_PTR(-ENOMEM);
1924
1925 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
1926 if (!dr) {
1927 usb_free_urb(urb);
1928 return ERR_PTR(-ENOMEM);
1929 }
1930
1931 dr->bRequestType = data->cmdreq_type;
1932 dr->bRequest = data->cmdreq;
1933 dr->wIndex = 0;
1934 dr->wValue = 0;
1935 dr->wLength = __cpu_to_le16(skb->len);
1936
1937 pipe = usb_sndctrlpipe(data->udev, 0x00);
1938
1939 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
1940 skb->data, skb->len, btusb_tx_complete, skb);
1941
1942 skb->dev = (void *)hdev;
1943
1944 return urb;
1945 }
1946
alloc_bulk_urb(struct hci_dev * hdev,struct sk_buff * skb)1947 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
1948 {
1949 struct btusb_data *data = hci_get_drvdata(hdev);
1950 struct urb *urb;
1951 unsigned int pipe;
1952
1953 if (!data->bulk_tx_ep)
1954 return ERR_PTR(-ENODEV);
1955
1956 urb = usb_alloc_urb(0, GFP_KERNEL);
1957 if (!urb)
1958 return ERR_PTR(-ENOMEM);
1959
1960 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
1961
1962 usb_fill_bulk_urb(urb, data->udev, pipe,
1963 skb->data, skb->len, btusb_tx_complete, skb);
1964
1965 skb->dev = (void *)hdev;
1966
1967 return urb;
1968 }
1969
alloc_isoc_urb(struct hci_dev * hdev,struct sk_buff * skb)1970 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
1971 {
1972 struct btusb_data *data = hci_get_drvdata(hdev);
1973 struct urb *urb;
1974 unsigned int pipe;
1975
1976 if (!data->isoc_tx_ep)
1977 return ERR_PTR(-ENODEV);
1978
1979 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
1980 if (!urb)
1981 return ERR_PTR(-ENOMEM);
1982
1983 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
1984
1985 usb_fill_int_urb(urb, data->udev, pipe,
1986 skb->data, skb->len, btusb_isoc_tx_complete,
1987 skb, data->isoc_tx_ep->bInterval);
1988
1989 urb->transfer_flags = URB_ISO_ASAP;
1990
1991 if (data->isoc_altsetting == 6)
1992 __fill_isoc_descriptor_msbc(urb, skb->len,
1993 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize),
1994 data);
1995 else
1996 __fill_isoc_descriptor(urb, skb->len,
1997 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
1998 skb->dev = (void *)hdev;
1999
2000 return urb;
2001 }
2002
submit_tx_urb(struct hci_dev * hdev,struct urb * urb)2003 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
2004 {
2005 struct btusb_data *data = hci_get_drvdata(hdev);
2006 int err;
2007
2008 usb_anchor_urb(urb, &data->tx_anchor);
2009
2010 err = usb_submit_urb(urb, GFP_KERNEL);
2011 if (err < 0) {
2012 if (err != -EPERM && err != -ENODEV)
2013 bt_dev_err(hdev, "urb %p submission failed (%d)",
2014 urb, -err);
2015 kfree(urb->setup_packet);
2016 usb_unanchor_urb(urb);
2017 } else {
2018 usb_mark_last_busy(data->udev);
2019 }
2020
2021 usb_free_urb(urb);
2022 return err;
2023 }
2024
submit_or_queue_tx_urb(struct hci_dev * hdev,struct urb * urb)2025 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
2026 {
2027 struct btusb_data *data = hci_get_drvdata(hdev);
2028 unsigned long flags;
2029 bool suspending;
2030
2031 spin_lock_irqsave(&data->txlock, flags);
2032 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
2033 if (!suspending)
2034 data->tx_in_flight++;
2035 spin_unlock_irqrestore(&data->txlock, flags);
2036
2037 if (!suspending)
2038 return submit_tx_urb(hdev, urb);
2039
2040 usb_anchor_urb(urb, &data->deferred);
2041 schedule_work(&data->waker);
2042
2043 usb_free_urb(urb);
2044 return 0;
2045 }
2046
btusb_send_frame(struct hci_dev * hdev,struct sk_buff * skb)2047 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
2048 {
2049 struct urb *urb;
2050
2051 BT_DBG("%s", hdev->name);
2052
2053 switch (hci_skb_pkt_type(skb)) {
2054 case HCI_COMMAND_PKT:
2055 urb = alloc_ctrl_urb(hdev, skb);
2056 if (IS_ERR(urb))
2057 return PTR_ERR(urb);
2058
2059 hdev->stat.cmd_tx++;
2060 return submit_or_queue_tx_urb(hdev, urb);
2061
2062 case HCI_ACLDATA_PKT:
2063 urb = alloc_bulk_urb(hdev, skb);
2064 if (IS_ERR(urb))
2065 return PTR_ERR(urb);
2066
2067 hdev->stat.acl_tx++;
2068 return submit_or_queue_tx_urb(hdev, urb);
2069
2070 case HCI_SCODATA_PKT:
2071 if (hci_conn_num(hdev, SCO_LINK) < 1)
2072 return -ENODEV;
2073
2074 urb = alloc_isoc_urb(hdev, skb);
2075 if (IS_ERR(urb))
2076 return PTR_ERR(urb);
2077
2078 hdev->stat.sco_tx++;
2079 return submit_tx_urb(hdev, urb);
2080
2081 case HCI_ISODATA_PKT:
2082 urb = alloc_bulk_urb(hdev, skb);
2083 if (IS_ERR(urb))
2084 return PTR_ERR(urb);
2085
2086 return submit_or_queue_tx_urb(hdev, urb);
2087 }
2088
2089 return -EILSEQ;
2090 }
2091
btusb_notify(struct hci_dev * hdev,unsigned int evt)2092 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
2093 {
2094 struct btusb_data *data = hci_get_drvdata(hdev);
2095
2096 BT_DBG("%s evt %d", hdev->name, evt);
2097
2098 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
2099 data->sco_num = hci_conn_num(hdev, SCO_LINK);
2100 data->air_mode = evt;
2101 schedule_work(&data->work);
2102 }
2103 }
2104
__set_isoc_interface(struct hci_dev * hdev,int altsetting)2105 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
2106 {
2107 struct btusb_data *data = hci_get_drvdata(hdev);
2108 struct usb_interface *intf = data->isoc;
2109 struct usb_endpoint_descriptor *ep_desc;
2110 int i, err;
2111
2112 if (!data->isoc)
2113 return -ENODEV;
2114
2115 err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting);
2116 if (err < 0) {
2117 bt_dev_err(hdev, "setting interface failed (%d)", -err);
2118 return err;
2119 }
2120
2121 data->isoc_altsetting = altsetting;
2122
2123 data->isoc_tx_ep = NULL;
2124 data->isoc_rx_ep = NULL;
2125
2126 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2127 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2128
2129 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
2130 data->isoc_tx_ep = ep_desc;
2131 continue;
2132 }
2133
2134 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
2135 data->isoc_rx_ep = ep_desc;
2136 continue;
2137 }
2138 }
2139
2140 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
2141 bt_dev_err(hdev, "invalid SCO descriptors");
2142 return -ENODEV;
2143 }
2144
2145 return 0;
2146 }
2147
btusb_switch_alt_setting(struct hci_dev * hdev,int new_alts)2148 static int btusb_switch_alt_setting(struct hci_dev *hdev, int new_alts)
2149 {
2150 struct btusb_data *data = hci_get_drvdata(hdev);
2151 int err;
2152
2153 if (data->isoc_altsetting != new_alts) {
2154 unsigned long flags;
2155
2156 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2157 usb_kill_anchored_urbs(&data->isoc_anchor);
2158
2159 /* When isochronous alternate setting needs to be
2160 * changed, because SCO connection has been added
2161 * or removed, a packet fragment may be left in the
2162 * reassembling state. This could lead to wrongly
2163 * assembled fragments.
2164 *
2165 * Clear outstanding fragment when selecting a new
2166 * alternate setting.
2167 */
2168 spin_lock_irqsave(&data->rxlock, flags);
2169 dev_kfree_skb_irq(data->sco_skb);
2170 data->sco_skb = NULL;
2171 spin_unlock_irqrestore(&data->rxlock, flags);
2172
2173 err = __set_isoc_interface(hdev, new_alts);
2174 if (err < 0)
2175 return err;
2176 }
2177
2178 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2179 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
2180 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2181 else
2182 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
2183 }
2184
2185 return 0;
2186 }
2187
btusb_find_altsetting(struct btusb_data * data,int alt)2188 static struct usb_host_interface *btusb_find_altsetting(struct btusb_data *data,
2189 int alt)
2190 {
2191 struct usb_interface *intf = data->isoc;
2192 int i;
2193
2194 BT_DBG("Looking for Alt no :%d", alt);
2195
2196 if (!intf)
2197 return NULL;
2198
2199 for (i = 0; i < intf->num_altsetting; i++) {
2200 if (intf->altsetting[i].desc.bAlternateSetting == alt)
2201 return &intf->altsetting[i];
2202 }
2203
2204 return NULL;
2205 }
2206
btusb_work(struct work_struct * work)2207 static void btusb_work(struct work_struct *work)
2208 {
2209 struct btusb_data *data = container_of(work, struct btusb_data, work);
2210 struct hci_dev *hdev = data->hdev;
2211 int new_alts = 0;
2212 int err;
2213
2214 if (data->sco_num > 0) {
2215 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
2216 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
2217 if (err < 0) {
2218 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2219 usb_kill_anchored_urbs(&data->isoc_anchor);
2220 return;
2221 }
2222
2223 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
2224 }
2225
2226 if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_CVSD) {
2227 if (hdev->voice_setting & 0x0020) {
2228 static const int alts[3] = { 2, 4, 5 };
2229
2230 new_alts = alts[data->sco_num - 1];
2231 } else {
2232 new_alts = data->sco_num;
2233 }
2234 } else if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_TRANSP) {
2235 /* Bluetooth USB spec recommends alt 6 (63 bytes), but
2236 * many adapters do not support it. Alt 1 appears to
2237 * work for all adapters that do not have alt 6, and
2238 * which work with WBS at all. Some devices prefer
2239 * alt 3 (HCI payload >= 60 Bytes let air packet
2240 * data satisfy 60 bytes), requiring
2241 * MTU >= 3 (packets) * 25 (size) - 3 (headers) = 72
2242 * see also Core spec 5, vol 4, B 2.1.1 & Table 2.1.
2243 */
2244 if (btusb_find_altsetting(data, 6))
2245 new_alts = 6;
2246 else if (btusb_find_altsetting(data, 3) &&
2247 hdev->sco_mtu >= 72 &&
2248 test_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags))
2249 new_alts = 3;
2250 else
2251 new_alts = 1;
2252 }
2253
2254 if (btusb_switch_alt_setting(hdev, new_alts) < 0)
2255 bt_dev_err(hdev, "set USB alt:(%d) failed!", new_alts);
2256 } else {
2257 usb_kill_anchored_urbs(&data->isoc_anchor);
2258
2259 if (test_and_clear_bit(BTUSB_ISOC_RUNNING, &data->flags))
2260 __set_isoc_interface(hdev, 0);
2261
2262 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
2263 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
2264 }
2265 }
2266
btusb_waker(struct work_struct * work)2267 static void btusb_waker(struct work_struct *work)
2268 {
2269 struct btusb_data *data = container_of(work, struct btusb_data, waker);
2270 int err;
2271
2272 err = usb_autopm_get_interface(data->intf);
2273 if (err < 0)
2274 return;
2275
2276 usb_autopm_put_interface(data->intf);
2277 }
2278
btusb_rx_work(struct work_struct * work)2279 static void btusb_rx_work(struct work_struct *work)
2280 {
2281 struct btusb_data *data = container_of(work, struct btusb_data,
2282 rx_work.work);
2283 struct sk_buff *skb;
2284
2285 /* Dequeue ACL data received during the interval */
2286 while ((skb = skb_dequeue(&data->acl_q)))
2287 data->recv_acl(data->hdev, skb);
2288 }
2289
btusb_setup_bcm92035(struct hci_dev * hdev)2290 static int btusb_setup_bcm92035(struct hci_dev *hdev)
2291 {
2292 struct sk_buff *skb;
2293 u8 val = 0x00;
2294
2295 BT_DBG("%s", hdev->name);
2296
2297 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
2298 if (IS_ERR(skb))
2299 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb));
2300 else
2301 kfree_skb(skb);
2302
2303 return 0;
2304 }
2305
btusb_setup_csr(struct hci_dev * hdev)2306 static int btusb_setup_csr(struct hci_dev *hdev)
2307 {
2308 struct btusb_data *data = hci_get_drvdata(hdev);
2309 u16 bcdDevice = le16_to_cpu(data->udev->descriptor.bcdDevice);
2310 struct hci_rp_read_local_version *rp;
2311 struct sk_buff *skb;
2312 bool is_fake = false;
2313 int ret;
2314
2315 BT_DBG("%s", hdev->name);
2316
2317 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
2318 HCI_INIT_TIMEOUT);
2319 if (IS_ERR(skb)) {
2320 int err = PTR_ERR(skb);
2321 bt_dev_err(hdev, "CSR: Local version failed (%d)", err);
2322 return err;
2323 }
2324
2325 rp = skb_pull_data(skb, sizeof(*rp));
2326 if (!rp) {
2327 bt_dev_err(hdev, "CSR: Local version length mismatch");
2328 kfree_skb(skb);
2329 return -EIO;
2330 }
2331
2332 bt_dev_info(hdev, "CSR: Setting up dongle with HCI ver=%u rev=%04x",
2333 rp->hci_ver, le16_to_cpu(rp->hci_rev));
2334
2335 bt_dev_info(hdev, "LMP ver=%u subver=%04x; manufacturer=%u",
2336 rp->lmp_ver, le16_to_cpu(rp->lmp_subver),
2337 le16_to_cpu(rp->manufacturer));
2338
2339 /* Detect a wide host of Chinese controllers that aren't CSR.
2340 *
2341 * Known fake bcdDevices: 0x0100, 0x0134, 0x1915, 0x2520, 0x7558, 0x8891
2342 *
2343 * The main thing they have in common is that these are really popular low-cost
2344 * options that support newer Bluetooth versions but rely on heavy VID/PID
2345 * squatting of this poor old Bluetooth 1.1 device. Even sold as such.
2346 *
2347 * We detect actual CSR devices by checking that the HCI manufacturer code
2348 * is Cambridge Silicon Radio (10) and ensuring that LMP sub-version and
2349 * HCI rev values always match. As they both store the firmware number.
2350 */
2351 if (le16_to_cpu(rp->manufacturer) != 10 ||
2352 le16_to_cpu(rp->hci_rev) != le16_to_cpu(rp->lmp_subver))
2353 is_fake = true;
2354
2355 /* Known legit CSR firmware build numbers and their supported BT versions:
2356 * - 1.1 (0x1) -> 0x0073, 0x020d, 0x033c, 0x034e
2357 * - 1.2 (0x2) -> 0x04d9, 0x0529
2358 * - 2.0 (0x3) -> 0x07a6, 0x07ad, 0x0c5c
2359 * - 2.1 (0x4) -> 0x149c, 0x1735, 0x1899 (0x1899 is a BlueCore4-External)
2360 * - 4.0 (0x6) -> 0x1d86, 0x2031, 0x22bb
2361 *
2362 * e.g. Real CSR dongles with LMP subversion 0x73 are old enough that
2363 * support BT 1.1 only; so it's a dead giveaway when some
2364 * third-party BT 4.0 dongle reuses it.
2365 */
2366 else if (le16_to_cpu(rp->lmp_subver) <= 0x034e &&
2367 rp->hci_ver > BLUETOOTH_VER_1_1)
2368 is_fake = true;
2369
2370 else if (le16_to_cpu(rp->lmp_subver) <= 0x0529 &&
2371 rp->hci_ver > BLUETOOTH_VER_1_2)
2372 is_fake = true;
2373
2374 else if (le16_to_cpu(rp->lmp_subver) <= 0x0c5c &&
2375 rp->hci_ver > BLUETOOTH_VER_2_0)
2376 is_fake = true;
2377
2378 else if (le16_to_cpu(rp->lmp_subver) <= 0x1899 &&
2379 rp->hci_ver > BLUETOOTH_VER_2_1)
2380 is_fake = true;
2381
2382 else if (le16_to_cpu(rp->lmp_subver) <= 0x22bb &&
2383 rp->hci_ver > BLUETOOTH_VER_4_0)
2384 is_fake = true;
2385
2386 /* Other clones which beat all the above checks */
2387 else if (bcdDevice == 0x0134 &&
2388 le16_to_cpu(rp->lmp_subver) == 0x0c5c &&
2389 rp->hci_ver == BLUETOOTH_VER_2_0)
2390 is_fake = true;
2391
2392 if (is_fake) {
2393 bt_dev_warn(hdev, "CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once...");
2394
2395 /* Generally these clones have big discrepancies between
2396 * advertised features and what's actually supported.
2397 * Probably will need to be expanded in the future;
2398 * without these the controller will lock up.
2399 */
2400 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
2401 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks);
2402 set_bit(HCI_QUIRK_BROKEN_FILTER_CLEAR_ALL, &hdev->quirks);
2403 set_bit(HCI_QUIRK_NO_SUSPEND_NOTIFIER, &hdev->quirks);
2404
2405 /* Clear the reset quirk since this is not an actual
2406 * early Bluetooth 1.1 device from CSR.
2407 */
2408 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
2409 clear_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
2410
2411 /*
2412 * Special workaround for these BT 4.0 chip clones, and potentially more:
2413 *
2414 * - 0x0134: a Barrot 8041a02 (HCI rev: 0x0810 sub: 0x1012)
2415 * - 0x7558: IC markings FR3191AHAL 749H15143 (HCI rev/sub-version: 0x0709)
2416 *
2417 * These controllers are really messed-up.
2418 *
2419 * 1. Their bulk RX endpoint will never report any data unless
2420 * the device was suspended at least once (yes, really).
2421 * 2. They will not wakeup when autosuspended and receiving data
2422 * on their bulk RX endpoint from e.g. a keyboard or mouse
2423 * (IOW remote-wakeup support is broken for the bulk endpoint).
2424 *
2425 * To fix 1. enable runtime-suspend, force-suspend the
2426 * HCI and then wake-it up by disabling runtime-suspend.
2427 *
2428 * To fix 2. clear the HCI's can_wake flag, this way the HCI
2429 * will still be autosuspended when it is not open.
2430 *
2431 * --
2432 *
2433 * Because these are widespread problems we prefer generic solutions; so
2434 * apply this initialization quirk to every controller that gets here,
2435 * it should be harmless. The alternative is to not work at all.
2436 */
2437 pm_runtime_allow(&data->udev->dev);
2438
2439 ret = pm_runtime_suspend(&data->udev->dev);
2440 if (ret >= 0)
2441 msleep(200);
2442 else
2443 bt_dev_warn(hdev, "CSR: Couldn't suspend the device for our Barrot 8041a02 receive-issue workaround");
2444
2445 pm_runtime_forbid(&data->udev->dev);
2446
2447 device_set_wakeup_capable(&data->udev->dev, false);
2448
2449 /* Re-enable autosuspend if this was requested */
2450 if (enable_autosuspend)
2451 usb_enable_autosuspend(data->udev);
2452 }
2453
2454 kfree_skb(skb);
2455
2456 return 0;
2457 }
2458
inject_cmd_complete(struct hci_dev * hdev,__u16 opcode)2459 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
2460 {
2461 struct sk_buff *skb;
2462 struct hci_event_hdr *hdr;
2463 struct hci_ev_cmd_complete *evt;
2464
2465 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL);
2466 if (!skb)
2467 return -ENOMEM;
2468
2469 hdr = skb_put(skb, sizeof(*hdr));
2470 hdr->evt = HCI_EV_CMD_COMPLETE;
2471 hdr->plen = sizeof(*evt) + 1;
2472
2473 evt = skb_put(skb, sizeof(*evt));
2474 evt->ncmd = 0x01;
2475 evt->opcode = cpu_to_le16(opcode);
2476
2477 skb_put_u8(skb, 0x00);
2478
2479 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
2480
2481 return hci_recv_frame(hdev, skb);
2482 }
2483
btusb_recv_bulk_intel(struct btusb_data * data,void * buffer,int count)2484 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
2485 int count)
2486 {
2487 struct hci_dev *hdev = data->hdev;
2488
2489 /* When the device is in bootloader mode, then it can send
2490 * events via the bulk endpoint. These events are treated the
2491 * same way as the ones received from the interrupt endpoint.
2492 */
2493 if (btintel_test_flag(hdev, INTEL_BOOTLOADER))
2494 return btusb_recv_intr(data, buffer, count);
2495
2496 return btusb_recv_bulk(data, buffer, count);
2497 }
2498
btusb_send_frame_intel(struct hci_dev * hdev,struct sk_buff * skb)2499 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
2500 {
2501 struct urb *urb;
2502
2503 BT_DBG("%s", hdev->name);
2504
2505 switch (hci_skb_pkt_type(skb)) {
2506 case HCI_COMMAND_PKT:
2507 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) {
2508 struct hci_command_hdr *cmd = (void *)skb->data;
2509 __u16 opcode = le16_to_cpu(cmd->opcode);
2510
2511 /* When in bootloader mode and the command 0xfc09
2512 * is received, it needs to be send down the
2513 * bulk endpoint. So allocate a bulk URB instead.
2514 */
2515 if (opcode == 0xfc09)
2516 urb = alloc_bulk_urb(hdev, skb);
2517 else
2518 urb = alloc_ctrl_urb(hdev, skb);
2519
2520 /* When the 0xfc01 command is issued to boot into
2521 * the operational firmware, it will actually not
2522 * send a command complete event. To keep the flow
2523 * control working inject that event here.
2524 */
2525 if (opcode == 0xfc01)
2526 inject_cmd_complete(hdev, opcode);
2527 } else {
2528 urb = alloc_ctrl_urb(hdev, skb);
2529 }
2530 if (IS_ERR(urb))
2531 return PTR_ERR(urb);
2532
2533 hdev->stat.cmd_tx++;
2534 return submit_or_queue_tx_urb(hdev, urb);
2535
2536 case HCI_ACLDATA_PKT:
2537 urb = alloc_bulk_urb(hdev, skb);
2538 if (IS_ERR(urb))
2539 return PTR_ERR(urb);
2540
2541 hdev->stat.acl_tx++;
2542 return submit_or_queue_tx_urb(hdev, urb);
2543
2544 case HCI_SCODATA_PKT:
2545 if (hci_conn_num(hdev, SCO_LINK) < 1)
2546 return -ENODEV;
2547
2548 urb = alloc_isoc_urb(hdev, skb);
2549 if (IS_ERR(urb))
2550 return PTR_ERR(urb);
2551
2552 hdev->stat.sco_tx++;
2553 return submit_tx_urb(hdev, urb);
2554
2555 case HCI_ISODATA_PKT:
2556 urb = alloc_bulk_urb(hdev, skb);
2557 if (IS_ERR(urb))
2558 return PTR_ERR(urb);
2559
2560 return submit_or_queue_tx_urb(hdev, urb);
2561 }
2562
2563 return -EILSEQ;
2564 }
2565
btusb_setup_realtek(struct hci_dev * hdev)2566 static int btusb_setup_realtek(struct hci_dev *hdev)
2567 {
2568 struct btusb_data *data = hci_get_drvdata(hdev);
2569 int ret;
2570
2571 ret = btrtl_setup_realtek(hdev);
2572
2573 if (btrealtek_test_flag(data->hdev, REALTEK_ALT6_CONTINUOUS_TX_CHIP))
2574 set_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags);
2575
2576 return ret;
2577 }
2578
btusb_recv_event_realtek(struct hci_dev * hdev,struct sk_buff * skb)2579 static int btusb_recv_event_realtek(struct hci_dev *hdev, struct sk_buff *skb)
2580 {
2581 if (skb->data[0] == HCI_VENDOR_PKT && skb->data[2] == RTK_SUB_EVENT_CODE_COREDUMP) {
2582 struct rtk_dev_coredump_hdr hdr = {
2583 .code = RTK_DEVCOREDUMP_CODE_MEMDUMP,
2584 };
2585
2586 bt_dev_dbg(hdev, "RTL: received coredump vendor evt, len %u",
2587 skb->len);
2588
2589 btusb_rtl_alloc_devcoredump(hdev, &hdr, skb->data, skb->len);
2590 kfree_skb(skb);
2591
2592 return 0;
2593 }
2594
2595 return hci_recv_frame(hdev, skb);
2596 }
2597
2598 /* UHW CR mapping */
2599 #define MTK_BT_MISC 0x70002510
2600 #define MTK_BT_SUBSYS_RST 0x70002610
2601 #define MTK_UDMA_INT_STA_BT 0x74000024
2602 #define MTK_UDMA_INT_STA_BT1 0x74000308
2603 #define MTK_BT_WDT_STATUS 0x740003A0
2604 #define MTK_EP_RST_OPT 0x74011890
2605 #define MTK_EP_RST_IN_OUT_OPT 0x00010001
2606 #define MTK_BT_RST_DONE 0x00000100
2607 #define MTK_BT_RESET_REG_CONNV3 0x70028610
2608 #define MTK_BT_READ_DEV_ID 0x70010200
2609
2610
btusb_mtk_wmt_recv(struct urb * urb)2611 static void btusb_mtk_wmt_recv(struct urb *urb)
2612 {
2613 struct hci_dev *hdev = urb->context;
2614 struct btusb_data *data = hci_get_drvdata(hdev);
2615 struct sk_buff *skb;
2616 int err;
2617
2618 if (urb->status == 0 && urb->actual_length > 0) {
2619 hdev->stat.byte_rx += urb->actual_length;
2620
2621 /* WMT event shouldn't be fragmented and the size should be
2622 * less than HCI_WMT_MAX_EVENT_SIZE.
2623 */
2624 skb = bt_skb_alloc(HCI_WMT_MAX_EVENT_SIZE, GFP_ATOMIC);
2625 if (!skb) {
2626 hdev->stat.err_rx++;
2627 kfree(urb->setup_packet);
2628 return;
2629 }
2630
2631 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
2632 skb_put_data(skb, urb->transfer_buffer, urb->actual_length);
2633
2634 /* When someone waits for the WMT event, the skb is being cloned
2635 * and being processed the events from there then.
2636 */
2637 if (test_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags)) {
2638 data->evt_skb = skb_clone(skb, GFP_ATOMIC);
2639 if (!data->evt_skb) {
2640 kfree_skb(skb);
2641 kfree(urb->setup_packet);
2642 return;
2643 }
2644 }
2645
2646 err = hci_recv_frame(hdev, skb);
2647 if (err < 0) {
2648 kfree_skb(data->evt_skb);
2649 data->evt_skb = NULL;
2650 kfree(urb->setup_packet);
2651 return;
2652 }
2653
2654 if (test_and_clear_bit(BTUSB_TX_WAIT_VND_EVT,
2655 &data->flags)) {
2656 /* Barrier to sync with other CPUs */
2657 smp_mb__after_atomic();
2658 wake_up_bit(&data->flags,
2659 BTUSB_TX_WAIT_VND_EVT);
2660 }
2661 kfree(urb->setup_packet);
2662 return;
2663 } else if (urb->status == -ENOENT) {
2664 /* Avoid suspend failed when usb_kill_urb */
2665 return;
2666 }
2667
2668 usb_mark_last_busy(data->udev);
2669
2670 /* The URB complete handler is still called with urb->actual_length = 0
2671 * when the event is not available, so we should keep re-submitting
2672 * URB until WMT event returns, Also, It's necessary to wait some time
2673 * between the two consecutive control URBs to relax the target device
2674 * to generate the event. Otherwise, the WMT event cannot return from
2675 * the device successfully.
2676 */
2677 udelay(500);
2678
2679 usb_anchor_urb(urb, &data->ctrl_anchor);
2680 err = usb_submit_urb(urb, GFP_ATOMIC);
2681 if (err < 0) {
2682 kfree(urb->setup_packet);
2683 /* -EPERM: urb is being killed;
2684 * -ENODEV: device got disconnected
2685 */
2686 if (err != -EPERM && err != -ENODEV)
2687 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
2688 urb, -err);
2689 usb_unanchor_urb(urb);
2690 }
2691 }
2692
btusb_mtk_submit_wmt_recv_urb(struct hci_dev * hdev)2693 static int btusb_mtk_submit_wmt_recv_urb(struct hci_dev *hdev)
2694 {
2695 struct btusb_data *data = hci_get_drvdata(hdev);
2696 struct usb_ctrlrequest *dr;
2697 unsigned char *buf;
2698 int err, size = 64;
2699 unsigned int pipe;
2700 struct urb *urb;
2701
2702 urb = usb_alloc_urb(0, GFP_KERNEL);
2703 if (!urb)
2704 return -ENOMEM;
2705
2706 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
2707 if (!dr) {
2708 usb_free_urb(urb);
2709 return -ENOMEM;
2710 }
2711
2712 dr->bRequestType = USB_TYPE_VENDOR | USB_DIR_IN;
2713 dr->bRequest = 1;
2714 dr->wIndex = cpu_to_le16(0);
2715 dr->wValue = cpu_to_le16(48);
2716 dr->wLength = cpu_to_le16(size);
2717
2718 buf = kmalloc(size, GFP_KERNEL);
2719 if (!buf) {
2720 kfree(dr);
2721 usb_free_urb(urb);
2722 return -ENOMEM;
2723 }
2724
2725 pipe = usb_rcvctrlpipe(data->udev, 0);
2726
2727 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
2728 buf, size, btusb_mtk_wmt_recv, hdev);
2729
2730 urb->transfer_flags |= URB_FREE_BUFFER;
2731
2732 usb_anchor_urb(urb, &data->ctrl_anchor);
2733 err = usb_submit_urb(urb, GFP_KERNEL);
2734 if (err < 0) {
2735 if (err != -EPERM && err != -ENODEV)
2736 bt_dev_err(hdev, "urb %p submission failed (%d)",
2737 urb, -err);
2738 usb_unanchor_urb(urb);
2739 }
2740
2741 usb_free_urb(urb);
2742
2743 return err;
2744 }
2745
btusb_mtk_hci_wmt_sync(struct hci_dev * hdev,struct btmtk_hci_wmt_params * wmt_params)2746 static int btusb_mtk_hci_wmt_sync(struct hci_dev *hdev,
2747 struct btmtk_hci_wmt_params *wmt_params)
2748 {
2749 struct btusb_data *data = hci_get_drvdata(hdev);
2750 struct btmtk_hci_wmt_evt_funcc *wmt_evt_funcc;
2751 u32 hlen, status = BTMTK_WMT_INVALID;
2752 struct btmtk_hci_wmt_evt *wmt_evt;
2753 struct btmtk_hci_wmt_cmd *wc;
2754 struct btmtk_wmt_hdr *hdr;
2755 int err;
2756
2757 /* Send the WMT command and wait until the WMT event returns */
2758 hlen = sizeof(*hdr) + wmt_params->dlen;
2759 if (hlen > 255)
2760 return -EINVAL;
2761
2762 wc = kzalloc(hlen, GFP_KERNEL);
2763 if (!wc)
2764 return -ENOMEM;
2765
2766 hdr = &wc->hdr;
2767 hdr->dir = 1;
2768 hdr->op = wmt_params->op;
2769 hdr->dlen = cpu_to_le16(wmt_params->dlen + 1);
2770 hdr->flag = wmt_params->flag;
2771 memcpy(wc->data, wmt_params->data, wmt_params->dlen);
2772
2773 set_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2774
2775 /* WMT cmd/event doesn't follow up the generic HCI cmd/event handling,
2776 * it needs constantly polling control pipe until the host received the
2777 * WMT event, thus, we should require to specifically acquire PM counter
2778 * on the USB to prevent the interface from entering auto suspended
2779 * while WMT cmd/event in progress.
2780 */
2781 err = usb_autopm_get_interface(data->intf);
2782 if (err < 0)
2783 goto err_free_wc;
2784
2785 err = __hci_cmd_send(hdev, 0xfc6f, hlen, wc);
2786
2787 if (err < 0) {
2788 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2789 usb_autopm_put_interface(data->intf);
2790 goto err_free_wc;
2791 }
2792
2793 /* Submit control IN URB on demand to process the WMT event */
2794 err = btusb_mtk_submit_wmt_recv_urb(hdev);
2795
2796 usb_autopm_put_interface(data->intf);
2797
2798 if (err < 0)
2799 goto err_free_wc;
2800
2801 /* The vendor specific WMT commands are all answered by a vendor
2802 * specific event and will have the Command Status or Command
2803 * Complete as with usual HCI command flow control.
2804 *
2805 * After sending the command, wait for BTUSB_TX_WAIT_VND_EVT
2806 * state to be cleared. The driver specific event receive routine
2807 * will clear that state and with that indicate completion of the
2808 * WMT command.
2809 */
2810 err = wait_on_bit_timeout(&data->flags, BTUSB_TX_WAIT_VND_EVT,
2811 TASK_INTERRUPTIBLE, HCI_INIT_TIMEOUT);
2812 if (err == -EINTR) {
2813 bt_dev_err(hdev, "Execution of wmt command interrupted");
2814 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2815 goto err_free_wc;
2816 }
2817
2818 if (err) {
2819 bt_dev_err(hdev, "Execution of wmt command timed out");
2820 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2821 err = -ETIMEDOUT;
2822 goto err_free_wc;
2823 }
2824
2825 if (data->evt_skb == NULL)
2826 goto err_free_wc;
2827
2828 /* Parse and handle the return WMT event */
2829 wmt_evt = (struct btmtk_hci_wmt_evt *)data->evt_skb->data;
2830 if (wmt_evt->whdr.op != hdr->op) {
2831 bt_dev_err(hdev, "Wrong op received %d expected %d",
2832 wmt_evt->whdr.op, hdr->op);
2833 err = -EIO;
2834 goto err_free_skb;
2835 }
2836
2837 switch (wmt_evt->whdr.op) {
2838 case BTMTK_WMT_SEMAPHORE:
2839 if (wmt_evt->whdr.flag == 2)
2840 status = BTMTK_WMT_PATCH_UNDONE;
2841 else
2842 status = BTMTK_WMT_PATCH_DONE;
2843 break;
2844 case BTMTK_WMT_FUNC_CTRL:
2845 wmt_evt_funcc = (struct btmtk_hci_wmt_evt_funcc *)wmt_evt;
2846 if (be16_to_cpu(wmt_evt_funcc->status) == 0x404)
2847 status = BTMTK_WMT_ON_DONE;
2848 else if (be16_to_cpu(wmt_evt_funcc->status) == 0x420)
2849 status = BTMTK_WMT_ON_PROGRESS;
2850 else
2851 status = BTMTK_WMT_ON_UNDONE;
2852 break;
2853 case BTMTK_WMT_PATCH_DWNLD:
2854 if (wmt_evt->whdr.flag == 2)
2855 status = BTMTK_WMT_PATCH_DONE;
2856 else if (wmt_evt->whdr.flag == 1)
2857 status = BTMTK_WMT_PATCH_PROGRESS;
2858 else
2859 status = BTMTK_WMT_PATCH_UNDONE;
2860 break;
2861 }
2862
2863 if (wmt_params->status)
2864 *wmt_params->status = status;
2865
2866 err_free_skb:
2867 kfree_skb(data->evt_skb);
2868 data->evt_skb = NULL;
2869 err_free_wc:
2870 kfree(wc);
2871 return err;
2872 }
2873
btusb_mtk_func_query(struct hci_dev * hdev)2874 static int btusb_mtk_func_query(struct hci_dev *hdev)
2875 {
2876 struct btmtk_hci_wmt_params wmt_params;
2877 int status, err;
2878 u8 param = 0;
2879
2880 /* Query whether the function is enabled */
2881 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
2882 wmt_params.flag = 4;
2883 wmt_params.dlen = sizeof(param);
2884 wmt_params.data = ¶m;
2885 wmt_params.status = &status;
2886
2887 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2888 if (err < 0) {
2889 bt_dev_err(hdev, "Failed to query function status (%d)", err);
2890 return err;
2891 }
2892
2893 return status;
2894 }
2895
btusb_mtk_uhw_reg_write(struct btusb_data * data,u32 reg,u32 val)2896 static int btusb_mtk_uhw_reg_write(struct btusb_data *data, u32 reg, u32 val)
2897 {
2898 struct hci_dev *hdev = data->hdev;
2899 int pipe, err;
2900 void *buf;
2901
2902 buf = kzalloc(4, GFP_KERNEL);
2903 if (!buf)
2904 return -ENOMEM;
2905
2906 put_unaligned_le32(val, buf);
2907
2908 pipe = usb_sndctrlpipe(data->udev, 0);
2909 err = usb_control_msg(data->udev, pipe, 0x02,
2910 0x5E,
2911 reg >> 16, reg & 0xffff,
2912 buf, 4, USB_CTRL_SET_TIMEOUT);
2913 if (err < 0) {
2914 bt_dev_err(hdev, "Failed to write uhw reg(%d)", err);
2915 goto err_free_buf;
2916 }
2917
2918 err_free_buf:
2919 kfree(buf);
2920
2921 return err;
2922 }
2923
btusb_mtk_uhw_reg_read(struct btusb_data * data,u32 reg,u32 * val)2924 static int btusb_mtk_uhw_reg_read(struct btusb_data *data, u32 reg, u32 *val)
2925 {
2926 struct hci_dev *hdev = data->hdev;
2927 int pipe, err;
2928 void *buf;
2929
2930 buf = kzalloc(4, GFP_KERNEL);
2931 if (!buf)
2932 return -ENOMEM;
2933
2934 pipe = usb_rcvctrlpipe(data->udev, 0);
2935 err = usb_control_msg(data->udev, pipe, 0x01,
2936 0xDE,
2937 reg >> 16, reg & 0xffff,
2938 buf, 4, USB_CTRL_SET_TIMEOUT);
2939 if (err < 0) {
2940 bt_dev_err(hdev, "Failed to read uhw reg(%d)", err);
2941 goto err_free_buf;
2942 }
2943
2944 *val = get_unaligned_le32(buf);
2945 bt_dev_dbg(hdev, "reg=%x, value=0x%08x", reg, *val);
2946
2947 err_free_buf:
2948 kfree(buf);
2949
2950 return err;
2951 }
2952
btusb_mtk_reg_read(struct btusb_data * data,u32 reg,u32 * val)2953 static int btusb_mtk_reg_read(struct btusb_data *data, u32 reg, u32 *val)
2954 {
2955 int pipe, err, size = sizeof(u32);
2956 void *buf;
2957
2958 buf = kzalloc(size, GFP_KERNEL);
2959 if (!buf)
2960 return -ENOMEM;
2961
2962 pipe = usb_rcvctrlpipe(data->udev, 0);
2963 err = usb_control_msg(data->udev, pipe, 0x63,
2964 USB_TYPE_VENDOR | USB_DIR_IN,
2965 reg >> 16, reg & 0xffff,
2966 buf, size, USB_CTRL_SET_TIMEOUT);
2967 if (err < 0)
2968 goto err_free_buf;
2969
2970 *val = get_unaligned_le32(buf);
2971
2972 err_free_buf:
2973 kfree(buf);
2974
2975 return err;
2976 }
2977
btusb_mtk_id_get(struct btusb_data * data,u32 reg,u32 * id)2978 static int btusb_mtk_id_get(struct btusb_data *data, u32 reg, u32 *id)
2979 {
2980 return btusb_mtk_reg_read(data, reg, id);
2981 }
2982
btusb_mtk_reset_done(struct hci_dev * hdev)2983 static u32 btusb_mtk_reset_done(struct hci_dev *hdev)
2984 {
2985 struct btusb_data *data = hci_get_drvdata(hdev);
2986 u32 val = 0;
2987
2988 btusb_mtk_uhw_reg_read(data, MTK_BT_MISC, &val);
2989
2990 return val & MTK_BT_RST_DONE;
2991 }
2992
btusb_mtk_reset(struct hci_dev * hdev,void * rst_data)2993 static int btusb_mtk_reset(struct hci_dev *hdev, void *rst_data)
2994 {
2995 struct btusb_data *data = hci_get_drvdata(hdev);
2996 struct btmediatek_data *mediatek;
2997 u32 val;
2998 int err;
2999
3000 /* It's MediaTek specific bluetooth reset mechanism via USB */
3001 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
3002 bt_dev_err(hdev, "last reset failed? Not resetting again");
3003 return -EBUSY;
3004 }
3005
3006 err = usb_autopm_get_interface(data->intf);
3007 if (err < 0)
3008 return err;
3009
3010 btusb_stop_traffic(data);
3011 usb_kill_anchored_urbs(&data->tx_anchor);
3012 mediatek = hci_get_priv(hdev);
3013
3014 if (mediatek->dev_id == 0x7925) {
3015 btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, &val);
3016 val |= (1 << 5);
3017 btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val);
3018 btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, &val);
3019 val &= 0xFFFF00FF;
3020 val |= (1 << 13);
3021 btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val);
3022 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, 0x00010001);
3023 btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, &val);
3024 val |= (1 << 0);
3025 btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val);
3026 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT, 0x000000FF);
3027 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT, &val);
3028 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT1, 0x000000FF);
3029 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT1, &val);
3030 msleep(100);
3031 } else {
3032 /* It's Device EndPoint Reset Option Register */
3033 bt_dev_dbg(hdev, "Initiating reset mechanism via uhw");
3034 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, MTK_EP_RST_IN_OUT_OPT);
3035 btusb_mtk_uhw_reg_read(data, MTK_BT_WDT_STATUS, &val);
3036
3037 /* Reset the bluetooth chip via USB interface. */
3038 btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, 1);
3039 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT, 0x000000FF);
3040 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT, &val);
3041 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT1, 0x000000FF);
3042 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT1, &val);
3043 /* MT7921 need to delay 20ms between toggle reset bit */
3044 msleep(20);
3045 btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, 0);
3046 btusb_mtk_uhw_reg_read(data, MTK_BT_SUBSYS_RST, &val);
3047 }
3048
3049 err = readx_poll_timeout(btusb_mtk_reset_done, hdev, val,
3050 val & MTK_BT_RST_DONE, 20000, 1000000);
3051 if (err < 0)
3052 bt_dev_err(hdev, "Reset timeout");
3053
3054 btusb_mtk_id_get(data, 0x70010200, &val);
3055 if (!val)
3056 bt_dev_err(hdev, "Can't get device id, subsys reset fail.");
3057
3058 usb_queue_reset_device(data->intf);
3059
3060 clear_bit(BTUSB_HW_RESET_ACTIVE, &data->flags);
3061
3062 return err;
3063 }
3064
btusb_mtk_setup(struct hci_dev * hdev)3065 static int btusb_mtk_setup(struct hci_dev *hdev)
3066 {
3067 struct btusb_data *data = hci_get_drvdata(hdev);
3068 struct btmtk_hci_wmt_params wmt_params;
3069 ktime_t calltime, delta, rettime;
3070 struct btmtk_tci_sleep tci_sleep;
3071 unsigned long long duration;
3072 struct sk_buff *skb;
3073 const char *fwname;
3074 int err, status;
3075 u32 dev_id = 0;
3076 char fw_bin_name[64];
3077 u32 fw_version = 0;
3078 u8 param;
3079 struct btmediatek_data *mediatek;
3080
3081 calltime = ktime_get();
3082
3083 err = btusb_mtk_id_get(data, 0x80000008, &dev_id);
3084 if (err < 0) {
3085 bt_dev_err(hdev, "Failed to get device id (%d)", err);
3086 return err;
3087 }
3088
3089 if (!dev_id || dev_id != 0x7663) {
3090 err = btusb_mtk_id_get(data, 0x70010200, &dev_id);
3091 if (err < 0) {
3092 bt_dev_err(hdev, "Failed to get device id (%d)", err);
3093 return err;
3094 }
3095 err = btusb_mtk_id_get(data, 0x80021004, &fw_version);
3096 if (err < 0) {
3097 bt_dev_err(hdev, "Failed to get fw version (%d)", err);
3098 return err;
3099 }
3100 }
3101
3102 mediatek = hci_get_priv(hdev);
3103 mediatek->dev_id = dev_id;
3104 mediatek->reset_sync = btusb_mtk_reset;
3105
3106 err = btmtk_register_coredump(hdev, btusb_driver.name, fw_version);
3107 if (err < 0)
3108 bt_dev_err(hdev, "Failed to register coredump (%d)", err);
3109
3110 switch (dev_id) {
3111 case 0x7663:
3112 fwname = FIRMWARE_MT7663;
3113 break;
3114 case 0x7668:
3115 fwname = FIRMWARE_MT7668;
3116 break;
3117 case 0x7922:
3118 case 0x7961:
3119 case 0x7925:
3120 if (dev_id == 0x7925)
3121 snprintf(fw_bin_name, sizeof(fw_bin_name),
3122 "mediatek/mt%04x/BT_RAM_CODE_MT%04x_1_%x_hdr.bin",
3123 dev_id & 0xffff, dev_id & 0xffff, (fw_version & 0xff) + 1);
3124 else
3125 snprintf(fw_bin_name, sizeof(fw_bin_name),
3126 "mediatek/BT_RAM_CODE_MT%04x_1_%x_hdr.bin",
3127 dev_id & 0xffff, (fw_version & 0xff) + 1);
3128
3129 err = btmtk_setup_firmware_79xx(hdev, fw_bin_name,
3130 btusb_mtk_hci_wmt_sync);
3131 if (err < 0) {
3132 bt_dev_err(hdev, "Failed to set up firmware (%d)", err);
3133 return err;
3134 }
3135
3136 /* It's Device EndPoint Reset Option Register */
3137 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, MTK_EP_RST_IN_OUT_OPT);
3138
3139 /* Enable Bluetooth protocol */
3140 param = 1;
3141 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3142 wmt_params.flag = 0;
3143 wmt_params.dlen = sizeof(param);
3144 wmt_params.data = ¶m;
3145 wmt_params.status = NULL;
3146
3147 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3148 if (err < 0) {
3149 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3150 return err;
3151 }
3152
3153 hci_set_msft_opcode(hdev, 0xFD30);
3154 hci_set_aosp_capable(hdev);
3155 goto done;
3156 default:
3157 bt_dev_err(hdev, "Unsupported hardware variant (%08x)",
3158 dev_id);
3159 return -ENODEV;
3160 }
3161
3162 /* Query whether the firmware is already download */
3163 wmt_params.op = BTMTK_WMT_SEMAPHORE;
3164 wmt_params.flag = 1;
3165 wmt_params.dlen = 0;
3166 wmt_params.data = NULL;
3167 wmt_params.status = &status;
3168
3169 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3170 if (err < 0) {
3171 bt_dev_err(hdev, "Failed to query firmware status (%d)", err);
3172 return err;
3173 }
3174
3175 if (status == BTMTK_WMT_PATCH_DONE) {
3176 bt_dev_info(hdev, "firmware already downloaded");
3177 goto ignore_setup_fw;
3178 }
3179
3180 /* Setup a firmware which the device definitely requires */
3181 err = btmtk_setup_firmware(hdev, fwname,
3182 btusb_mtk_hci_wmt_sync);
3183 if (err < 0)
3184 return err;
3185
3186 ignore_setup_fw:
3187 err = readx_poll_timeout(btusb_mtk_func_query, hdev, status,
3188 status < 0 || status != BTMTK_WMT_ON_PROGRESS,
3189 2000, 5000000);
3190 /* -ETIMEDOUT happens */
3191 if (err < 0)
3192 return err;
3193
3194 /* The other errors happen in btusb_mtk_func_query */
3195 if (status < 0)
3196 return status;
3197
3198 if (status == BTMTK_WMT_ON_DONE) {
3199 bt_dev_info(hdev, "function already on");
3200 goto ignore_func_on;
3201 }
3202
3203 /* Enable Bluetooth protocol */
3204 param = 1;
3205 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3206 wmt_params.flag = 0;
3207 wmt_params.dlen = sizeof(param);
3208 wmt_params.data = ¶m;
3209 wmt_params.status = NULL;
3210
3211 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3212 if (err < 0) {
3213 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3214 return err;
3215 }
3216
3217 ignore_func_on:
3218 /* Apply the low power environment setup */
3219 tci_sleep.mode = 0x5;
3220 tci_sleep.duration = cpu_to_le16(0x640);
3221 tci_sleep.host_duration = cpu_to_le16(0x640);
3222 tci_sleep.host_wakeup_pin = 0;
3223 tci_sleep.time_compensation = 0;
3224
3225 skb = __hci_cmd_sync(hdev, 0xfc7a, sizeof(tci_sleep), &tci_sleep,
3226 HCI_INIT_TIMEOUT);
3227 if (IS_ERR(skb)) {
3228 err = PTR_ERR(skb);
3229 bt_dev_err(hdev, "Failed to apply low power setting (%d)", err);
3230 return err;
3231 }
3232 kfree_skb(skb);
3233
3234 done:
3235 rettime = ktime_get();
3236 delta = ktime_sub(rettime, calltime);
3237 duration = (unsigned long long)ktime_to_ns(delta) >> 10;
3238
3239 bt_dev_info(hdev, "Device setup in %llu usecs", duration);
3240
3241 return 0;
3242 }
3243
btusb_mtk_shutdown(struct hci_dev * hdev)3244 static int btusb_mtk_shutdown(struct hci_dev *hdev)
3245 {
3246 struct btmtk_hci_wmt_params wmt_params;
3247 u8 param = 0;
3248 int err;
3249
3250 /* Disable the device */
3251 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3252 wmt_params.flag = 0;
3253 wmt_params.dlen = sizeof(param);
3254 wmt_params.data = ¶m;
3255 wmt_params.status = NULL;
3256
3257 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3258 if (err < 0) {
3259 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3260 return err;
3261 }
3262
3263 return 0;
3264 }
3265
btusb_recv_acl_mtk(struct hci_dev * hdev,struct sk_buff * skb)3266 static int btusb_recv_acl_mtk(struct hci_dev *hdev, struct sk_buff *skb)
3267 {
3268 struct btusb_data *data = hci_get_drvdata(hdev);
3269 u16 handle = le16_to_cpu(hci_acl_hdr(skb)->handle);
3270
3271 switch (handle) {
3272 case 0xfc6f: /* Firmware dump from device */
3273 /* When the firmware hangs, the device can no longer
3274 * suspend and thus disable auto-suspend.
3275 */
3276 usb_disable_autosuspend(data->udev);
3277
3278 /* We need to forward the diagnostic packet to userspace daemon
3279 * for backward compatibility, so we have to clone the packet
3280 * extraly for the in-kernel coredump support.
3281 */
3282 if (IS_ENABLED(CONFIG_DEV_COREDUMP)) {
3283 struct sk_buff *skb_cd = skb_clone(skb, GFP_ATOMIC);
3284
3285 if (skb_cd)
3286 btmtk_process_coredump(hdev, skb_cd);
3287 }
3288
3289 fallthrough;
3290 case 0x05ff: /* Firmware debug logging 1 */
3291 case 0x05fe: /* Firmware debug logging 2 */
3292 return hci_recv_diag(hdev, skb);
3293 }
3294
3295 return hci_recv_frame(hdev, skb);
3296 }
3297
3298 #ifdef CONFIG_PM
3299 /* Configure an out-of-band gpio as wake-up pin, if specified in device tree */
marvell_config_oob_wake(struct hci_dev * hdev)3300 static int marvell_config_oob_wake(struct hci_dev *hdev)
3301 {
3302 struct sk_buff *skb;
3303 struct btusb_data *data = hci_get_drvdata(hdev);
3304 struct device *dev = &data->udev->dev;
3305 u16 pin, gap, opcode;
3306 int ret;
3307 u8 cmd[5];
3308
3309 /* Move on if no wakeup pin specified */
3310 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) ||
3311 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap))
3312 return 0;
3313
3314 /* Vendor specific command to configure a GPIO as wake-up pin */
3315 opcode = hci_opcode_pack(0x3F, 0x59);
3316 cmd[0] = opcode & 0xFF;
3317 cmd[1] = opcode >> 8;
3318 cmd[2] = 2; /* length of parameters that follow */
3319 cmd[3] = pin;
3320 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */
3321
3322 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
3323 if (!skb) {
3324 bt_dev_err(hdev, "%s: No memory", __func__);
3325 return -ENOMEM;
3326 }
3327
3328 skb_put_data(skb, cmd, sizeof(cmd));
3329 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT;
3330
3331 ret = btusb_send_frame(hdev, skb);
3332 if (ret) {
3333 bt_dev_err(hdev, "%s: configuration failed", __func__);
3334 kfree_skb(skb);
3335 return ret;
3336 }
3337
3338 return 0;
3339 }
3340 #endif
3341
btusb_set_bdaddr_marvell(struct hci_dev * hdev,const bdaddr_t * bdaddr)3342 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
3343 const bdaddr_t *bdaddr)
3344 {
3345 struct sk_buff *skb;
3346 u8 buf[8];
3347 long ret;
3348
3349 buf[0] = 0xfe;
3350 buf[1] = sizeof(bdaddr_t);
3351 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
3352
3353 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
3354 if (IS_ERR(skb)) {
3355 ret = PTR_ERR(skb);
3356 bt_dev_err(hdev, "changing Marvell device address failed (%ld)",
3357 ret);
3358 return ret;
3359 }
3360 kfree_skb(skb);
3361
3362 return 0;
3363 }
3364
btusb_set_bdaddr_ath3012(struct hci_dev * hdev,const bdaddr_t * bdaddr)3365 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
3366 const bdaddr_t *bdaddr)
3367 {
3368 struct sk_buff *skb;
3369 u8 buf[10];
3370 long ret;
3371
3372 buf[0] = 0x01;
3373 buf[1] = 0x01;
3374 buf[2] = 0x00;
3375 buf[3] = sizeof(bdaddr_t);
3376 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
3377
3378 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
3379 if (IS_ERR(skb)) {
3380 ret = PTR_ERR(skb);
3381 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
3382 return ret;
3383 }
3384 kfree_skb(skb);
3385
3386 return 0;
3387 }
3388
btusb_set_bdaddr_wcn6855(struct hci_dev * hdev,const bdaddr_t * bdaddr)3389 static int btusb_set_bdaddr_wcn6855(struct hci_dev *hdev,
3390 const bdaddr_t *bdaddr)
3391 {
3392 struct sk_buff *skb;
3393 u8 buf[6];
3394 long ret;
3395
3396 memcpy(buf, bdaddr, sizeof(bdaddr_t));
3397
3398 skb = __hci_cmd_sync_ev(hdev, 0xfc14, sizeof(buf), buf,
3399 HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT);
3400 if (IS_ERR(skb)) {
3401 ret = PTR_ERR(skb);
3402 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
3403 return ret;
3404 }
3405 kfree_skb(skb);
3406
3407 return 0;
3408 }
3409
3410 #define QCA_MEMDUMP_ACL_HANDLE 0x2EDD
3411 #define QCA_MEMDUMP_SIZE_MAX 0x100000
3412 #define QCA_MEMDUMP_VSE_CLASS 0x01
3413 #define QCA_MEMDUMP_MSG_TYPE 0x08
3414 #define QCA_MEMDUMP_PKT_SIZE 248
3415 #define QCA_LAST_SEQUENCE_NUM 0xffff
3416
3417 struct qca_dump_hdr {
3418 u8 vse_class;
3419 u8 msg_type;
3420 __le16 seqno;
3421 u8 reserved;
3422 union {
3423 u8 data[0];
3424 struct {
3425 __le32 ram_dump_size;
3426 u8 data0[0];
3427 } __packed;
3428 };
3429 } __packed;
3430
3431
btusb_dump_hdr_qca(struct hci_dev * hdev,struct sk_buff * skb)3432 static void btusb_dump_hdr_qca(struct hci_dev *hdev, struct sk_buff *skb)
3433 {
3434 char buf[128];
3435 struct btusb_data *btdata = hci_get_drvdata(hdev);
3436
3437 snprintf(buf, sizeof(buf), "Controller Name: 0x%x\n",
3438 btdata->qca_dump.controller_id);
3439 skb_put_data(skb, buf, strlen(buf));
3440
3441 snprintf(buf, sizeof(buf), "Firmware Version: 0x%x\n",
3442 btdata->qca_dump.fw_version);
3443 skb_put_data(skb, buf, strlen(buf));
3444
3445 snprintf(buf, sizeof(buf), "Driver: %s\nVendor: qca\n",
3446 btusb_driver.name);
3447 skb_put_data(skb, buf, strlen(buf));
3448
3449 snprintf(buf, sizeof(buf), "VID: 0x%x\nPID:0x%x\n",
3450 btdata->qca_dump.id_vendor, btdata->qca_dump.id_product);
3451 skb_put_data(skb, buf, strlen(buf));
3452
3453 snprintf(buf, sizeof(buf), "Lmp Subversion: 0x%x\n",
3454 hdev->lmp_subver);
3455 skb_put_data(skb, buf, strlen(buf));
3456 }
3457
btusb_coredump_qca(struct hci_dev * hdev)3458 static void btusb_coredump_qca(struct hci_dev *hdev)
3459 {
3460 static const u8 param[] = { 0x26 };
3461 struct sk_buff *skb;
3462
3463 skb = __hci_cmd_sync(hdev, 0xfc0c, 1, param, HCI_CMD_TIMEOUT);
3464 if (IS_ERR(skb))
3465 bt_dev_err(hdev, "%s: triggle crash failed (%ld)", __func__, PTR_ERR(skb));
3466 kfree_skb(skb);
3467 }
3468
3469 /*
3470 * ==0: not a dump pkt.
3471 * < 0: fails to handle a dump pkt
3472 * > 0: otherwise.
3473 */
handle_dump_pkt_qca(struct hci_dev * hdev,struct sk_buff * skb)3474 static int handle_dump_pkt_qca(struct hci_dev *hdev, struct sk_buff *skb)
3475 {
3476 int ret = 1;
3477 u8 pkt_type;
3478 u8 *sk_ptr;
3479 unsigned int sk_len;
3480 u16 seqno;
3481 u32 dump_size;
3482
3483 struct hci_event_hdr *event_hdr;
3484 struct hci_acl_hdr *acl_hdr;
3485 struct qca_dump_hdr *dump_hdr;
3486 struct btusb_data *btdata = hci_get_drvdata(hdev);
3487 struct usb_device *udev = btdata->udev;
3488
3489 pkt_type = hci_skb_pkt_type(skb);
3490 sk_ptr = skb->data;
3491 sk_len = skb->len;
3492
3493 if (pkt_type == HCI_ACLDATA_PKT) {
3494 acl_hdr = hci_acl_hdr(skb);
3495 if (le16_to_cpu(acl_hdr->handle) != QCA_MEMDUMP_ACL_HANDLE)
3496 return 0;
3497 sk_ptr += HCI_ACL_HDR_SIZE;
3498 sk_len -= HCI_ACL_HDR_SIZE;
3499 event_hdr = (struct hci_event_hdr *)sk_ptr;
3500 } else {
3501 event_hdr = hci_event_hdr(skb);
3502 }
3503
3504 if ((event_hdr->evt != HCI_VENDOR_PKT)
3505 || (event_hdr->plen != (sk_len - HCI_EVENT_HDR_SIZE)))
3506 return 0;
3507
3508 sk_ptr += HCI_EVENT_HDR_SIZE;
3509 sk_len -= HCI_EVENT_HDR_SIZE;
3510
3511 dump_hdr = (struct qca_dump_hdr *)sk_ptr;
3512 if ((sk_len < offsetof(struct qca_dump_hdr, data))
3513 || (dump_hdr->vse_class != QCA_MEMDUMP_VSE_CLASS)
3514 || (dump_hdr->msg_type != QCA_MEMDUMP_MSG_TYPE))
3515 return 0;
3516
3517 /*it is dump pkt now*/
3518 seqno = le16_to_cpu(dump_hdr->seqno);
3519 if (seqno == 0) {
3520 set_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags);
3521 dump_size = le32_to_cpu(dump_hdr->ram_dump_size);
3522 if (!dump_size || (dump_size > QCA_MEMDUMP_SIZE_MAX)) {
3523 ret = -EILSEQ;
3524 bt_dev_err(hdev, "Invalid memdump size(%u)",
3525 dump_size);
3526 goto out;
3527 }
3528
3529 ret = hci_devcd_init(hdev, dump_size);
3530 if (ret < 0) {
3531 bt_dev_err(hdev, "memdump init error(%d)", ret);
3532 goto out;
3533 }
3534
3535 btdata->qca_dump.ram_dump_size = dump_size;
3536 btdata->qca_dump.ram_dump_seqno = 0;
3537 sk_ptr += offsetof(struct qca_dump_hdr, data0);
3538 sk_len -= offsetof(struct qca_dump_hdr, data0);
3539
3540 usb_disable_autosuspend(udev);
3541 bt_dev_info(hdev, "%s memdump size(%u)\n",
3542 (pkt_type == HCI_ACLDATA_PKT) ? "ACL" : "event",
3543 dump_size);
3544 } else {
3545 sk_ptr += offsetof(struct qca_dump_hdr, data);
3546 sk_len -= offsetof(struct qca_dump_hdr, data);
3547 }
3548
3549 if (!btdata->qca_dump.ram_dump_size) {
3550 ret = -EINVAL;
3551 bt_dev_err(hdev, "memdump is not active");
3552 goto out;
3553 }
3554
3555 if ((seqno > btdata->qca_dump.ram_dump_seqno + 1) && (seqno != QCA_LAST_SEQUENCE_NUM)) {
3556 dump_size = QCA_MEMDUMP_PKT_SIZE * (seqno - btdata->qca_dump.ram_dump_seqno - 1);
3557 hci_devcd_append_pattern(hdev, 0x0, dump_size);
3558 bt_dev_err(hdev,
3559 "expected memdump seqno(%u) is not received(%u)\n",
3560 btdata->qca_dump.ram_dump_seqno, seqno);
3561 btdata->qca_dump.ram_dump_seqno = seqno;
3562 kfree_skb(skb);
3563 return ret;
3564 }
3565
3566 skb_pull(skb, skb->len - sk_len);
3567 hci_devcd_append(hdev, skb);
3568 btdata->qca_dump.ram_dump_seqno++;
3569 if (seqno == QCA_LAST_SEQUENCE_NUM) {
3570 bt_dev_info(hdev,
3571 "memdump done: pkts(%u), total(%u)\n",
3572 btdata->qca_dump.ram_dump_seqno, btdata->qca_dump.ram_dump_size);
3573
3574 hci_devcd_complete(hdev);
3575 goto out;
3576 }
3577 return ret;
3578
3579 out:
3580 if (btdata->qca_dump.ram_dump_size)
3581 usb_enable_autosuspend(udev);
3582 btdata->qca_dump.ram_dump_size = 0;
3583 btdata->qca_dump.ram_dump_seqno = 0;
3584 clear_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags);
3585
3586 if (ret < 0)
3587 kfree_skb(skb);
3588 return ret;
3589 }
3590
btusb_recv_acl_qca(struct hci_dev * hdev,struct sk_buff * skb)3591 static int btusb_recv_acl_qca(struct hci_dev *hdev, struct sk_buff *skb)
3592 {
3593 if (handle_dump_pkt_qca(hdev, skb))
3594 return 0;
3595 return hci_recv_frame(hdev, skb);
3596 }
3597
btusb_recv_evt_qca(struct hci_dev * hdev,struct sk_buff * skb)3598 static int btusb_recv_evt_qca(struct hci_dev *hdev, struct sk_buff *skb)
3599 {
3600 if (handle_dump_pkt_qca(hdev, skb))
3601 return 0;
3602 return hci_recv_frame(hdev, skb);
3603 }
3604
3605
3606 #define QCA_DFU_PACKET_LEN 4096
3607
3608 #define QCA_GET_TARGET_VERSION 0x09
3609 #define QCA_CHECK_STATUS 0x05
3610 #define QCA_DFU_DOWNLOAD 0x01
3611
3612 #define QCA_SYSCFG_UPDATED 0x40
3613 #define QCA_PATCH_UPDATED 0x80
3614 #define QCA_DFU_TIMEOUT 3000
3615 #define QCA_FLAG_MULTI_NVM 0x80
3616 #define QCA_BT_RESET_WAIT_MS 100
3617
3618 #define WCN6855_2_0_RAM_VERSION_GF 0x400c1200
3619 #define WCN6855_2_1_RAM_VERSION_GF 0x400c1211
3620
3621 struct qca_version {
3622 __le32 rom_version;
3623 __le32 patch_version;
3624 __le32 ram_version;
3625 __u8 chip_id;
3626 __u8 platform_id;
3627 __le16 flag;
3628 __u8 reserved[4];
3629 } __packed;
3630
3631 struct qca_rampatch_version {
3632 __le16 rom_version_high;
3633 __le16 rom_version_low;
3634 __le16 patch_version;
3635 } __packed;
3636
3637 struct qca_device_info {
3638 u32 rom_version;
3639 u8 rampatch_hdr; /* length of header in rampatch */
3640 u8 nvm_hdr; /* length of header in NVM */
3641 u8 ver_offset; /* offset of version structure in rampatch */
3642 };
3643
3644 static const struct qca_device_info qca_devices_table[] = {
3645 { 0x00000100, 20, 4, 8 }, /* Rome 1.0 */
3646 { 0x00000101, 20, 4, 8 }, /* Rome 1.1 */
3647 { 0x00000200, 28, 4, 16 }, /* Rome 2.0 */
3648 { 0x00000201, 28, 4, 16 }, /* Rome 2.1 */
3649 { 0x00000300, 28, 4, 16 }, /* Rome 3.0 */
3650 { 0x00000302, 28, 4, 16 }, /* Rome 3.2 */
3651 { 0x00130100, 40, 4, 16 }, /* WCN6855 1.0 */
3652 { 0x00130200, 40, 4, 16 }, /* WCN6855 2.0 */
3653 { 0x00130201, 40, 4, 16 }, /* WCN6855 2.1 */
3654 { 0x00190200, 40, 4, 16 }, /* WCN785x 2.0 */
3655 };
3656
btusb_qca_send_vendor_req(struct usb_device * udev,u8 request,void * data,u16 size)3657 static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request,
3658 void *data, u16 size)
3659 {
3660 int pipe, err;
3661 u8 *buf;
3662
3663 buf = kmalloc(size, GFP_KERNEL);
3664 if (!buf)
3665 return -ENOMEM;
3666
3667 /* Found some of USB hosts have IOT issues with ours so that we should
3668 * not wait until HCI layer is ready.
3669 */
3670 pipe = usb_rcvctrlpipe(udev, 0);
3671 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
3672 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
3673 if (err < 0) {
3674 dev_err(&udev->dev, "Failed to access otp area (%d)", err);
3675 goto done;
3676 }
3677
3678 memcpy(data, buf, size);
3679
3680 done:
3681 kfree(buf);
3682
3683 return err;
3684 }
3685
btusb_setup_qca_download_fw(struct hci_dev * hdev,const struct firmware * firmware,size_t hdr_size)3686 static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
3687 const struct firmware *firmware,
3688 size_t hdr_size)
3689 {
3690 struct btusb_data *btdata = hci_get_drvdata(hdev);
3691 struct usb_device *udev = btdata->udev;
3692 size_t count, size, sent = 0;
3693 int pipe, len, err;
3694 u8 *buf;
3695
3696 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
3697 if (!buf)
3698 return -ENOMEM;
3699
3700 count = firmware->size;
3701
3702 size = min_t(size_t, count, hdr_size);
3703 memcpy(buf, firmware->data, size);
3704
3705 /* USB patches should go down to controller through USB path
3706 * because binary format fits to go down through USB channel.
3707 * USB control path is for patching headers and USB bulk is for
3708 * patch body.
3709 */
3710 pipe = usb_sndctrlpipe(udev, 0);
3711 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
3712 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
3713 if (err < 0) {
3714 bt_dev_err(hdev, "Failed to send headers (%d)", err);
3715 goto done;
3716 }
3717
3718 sent += size;
3719 count -= size;
3720
3721 /* ep2 need time to switch from function acl to function dfu,
3722 * so we add 20ms delay here.
3723 */
3724 msleep(20);
3725
3726 while (count) {
3727 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
3728
3729 memcpy(buf, firmware->data + sent, size);
3730
3731 pipe = usb_sndbulkpipe(udev, 0x02);
3732 err = usb_bulk_msg(udev, pipe, buf, size, &len,
3733 QCA_DFU_TIMEOUT);
3734 if (err < 0) {
3735 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)",
3736 sent, firmware->size, err);
3737 break;
3738 }
3739
3740 if (size != len) {
3741 bt_dev_err(hdev, "Failed to get bulk buffer");
3742 err = -EILSEQ;
3743 break;
3744 }
3745
3746 sent += size;
3747 count -= size;
3748 }
3749
3750 done:
3751 kfree(buf);
3752 return err;
3753 }
3754
btusb_setup_qca_load_rampatch(struct hci_dev * hdev,struct qca_version * ver,const struct qca_device_info * info)3755 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
3756 struct qca_version *ver,
3757 const struct qca_device_info *info)
3758 {
3759 struct qca_rampatch_version *rver;
3760 const struct firmware *fw;
3761 u32 ver_rom, ver_patch, rver_rom;
3762 u16 rver_rom_low, rver_rom_high, rver_patch;
3763 char fwname[64];
3764 int err;
3765
3766 ver_rom = le32_to_cpu(ver->rom_version);
3767 ver_patch = le32_to_cpu(ver->patch_version);
3768
3769 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom);
3770
3771 err = request_firmware(&fw, fwname, &hdev->dev);
3772 if (err) {
3773 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)",
3774 fwname, err);
3775 return err;
3776 }
3777
3778 bt_dev_info(hdev, "using rampatch file: %s", fwname);
3779
3780 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
3781 rver_rom_low = le16_to_cpu(rver->rom_version_low);
3782 rver_patch = le16_to_cpu(rver->patch_version);
3783
3784 if (ver_rom & ~0xffffU) {
3785 rver_rom_high = le16_to_cpu(rver->rom_version_high);
3786 rver_rom = rver_rom_high << 16 | rver_rom_low;
3787 } else {
3788 rver_rom = rver_rom_low;
3789 }
3790
3791 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, "
3792 "firmware rome 0x%x build 0x%x",
3793 rver_rom, rver_patch, ver_rom, ver_patch);
3794
3795 if (rver_rom != ver_rom || rver_patch <= ver_patch) {
3796 bt_dev_err(hdev, "rampatch file version did not match with firmware");
3797 err = -EINVAL;
3798 goto done;
3799 }
3800
3801 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
3802
3803 done:
3804 release_firmware(fw);
3805
3806 return err;
3807 }
3808
btusb_generate_qca_nvm_name(char * fwname,size_t max_size,const struct qca_version * ver)3809 static void btusb_generate_qca_nvm_name(char *fwname, size_t max_size,
3810 const struct qca_version *ver)
3811 {
3812 u32 rom_version = le32_to_cpu(ver->rom_version);
3813 u16 flag = le16_to_cpu(ver->flag);
3814
3815 if (((flag >> 8) & 0xff) == QCA_FLAG_MULTI_NVM) {
3816 /* The board_id should be split into two bytes
3817 * The 1st byte is chip ID, and the 2nd byte is platform ID
3818 * For example, board ID 0x010A, 0x01 is platform ID. 0x0A is chip ID
3819 * we have several platforms, and platform IDs are continuously added
3820 * Platform ID:
3821 * 0x00 is for Mobile
3822 * 0x01 is for X86
3823 * 0x02 is for Automotive
3824 * 0x03 is for Consumer electronic
3825 */
3826 u16 board_id = (ver->chip_id << 8) + ver->platform_id;
3827 const char *variant;
3828
3829 switch (le32_to_cpu(ver->ram_version)) {
3830 case WCN6855_2_0_RAM_VERSION_GF:
3831 case WCN6855_2_1_RAM_VERSION_GF:
3832 variant = "_gf";
3833 break;
3834 default:
3835 variant = "";
3836 break;
3837 }
3838
3839 if (board_id == 0) {
3840 snprintf(fwname, max_size, "qca/nvm_usb_%08x%s.bin",
3841 rom_version, variant);
3842 } else {
3843 snprintf(fwname, max_size, "qca/nvm_usb_%08x%s_%04x.bin",
3844 rom_version, variant, board_id);
3845 }
3846 } else {
3847 snprintf(fwname, max_size, "qca/nvm_usb_%08x.bin",
3848 rom_version);
3849 }
3850
3851 }
3852
btusb_setup_qca_load_nvm(struct hci_dev * hdev,struct qca_version * ver,const struct qca_device_info * info)3853 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
3854 struct qca_version *ver,
3855 const struct qca_device_info *info)
3856 {
3857 const struct firmware *fw;
3858 char fwname[64];
3859 int err;
3860
3861 btusb_generate_qca_nvm_name(fwname, sizeof(fwname), ver);
3862
3863 err = request_firmware(&fw, fwname, &hdev->dev);
3864 if (err) {
3865 bt_dev_err(hdev, "failed to request NVM file: %s (%d)",
3866 fwname, err);
3867 return err;
3868 }
3869
3870 bt_dev_info(hdev, "using NVM file: %s", fwname);
3871
3872 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
3873
3874 release_firmware(fw);
3875
3876 return err;
3877 }
3878
3879 /* identify the ROM version and check whether patches are needed */
btusb_qca_need_patch(struct usb_device * udev)3880 static bool btusb_qca_need_patch(struct usb_device *udev)
3881 {
3882 struct qca_version ver;
3883
3884 if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3885 sizeof(ver)) < 0)
3886 return false;
3887 /* only low ROM versions need patches */
3888 return !(le32_to_cpu(ver.rom_version) & ~0xffffU);
3889 }
3890
btusb_setup_qca(struct hci_dev * hdev)3891 static int btusb_setup_qca(struct hci_dev *hdev)
3892 {
3893 struct btusb_data *btdata = hci_get_drvdata(hdev);
3894 struct usb_device *udev = btdata->udev;
3895 const struct qca_device_info *info = NULL;
3896 struct qca_version ver;
3897 u32 ver_rom;
3898 u8 status;
3899 int i, err;
3900
3901 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3902 sizeof(ver));
3903 if (err < 0)
3904 return err;
3905
3906 ver_rom = le32_to_cpu(ver.rom_version);
3907
3908 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
3909 if (ver_rom == qca_devices_table[i].rom_version)
3910 info = &qca_devices_table[i];
3911 }
3912 if (!info) {
3913 /* If the rom_version is not matched in the qca_devices_table
3914 * and the high ROM version is not zero, we assume this chip no
3915 * need to load the rampatch and nvm.
3916 */
3917 if (ver_rom & ~0xffffU)
3918 return 0;
3919
3920 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom);
3921 return -ENODEV;
3922 }
3923
3924 err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status,
3925 sizeof(status));
3926 if (err < 0)
3927 return err;
3928
3929 if (!(status & QCA_PATCH_UPDATED)) {
3930 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
3931 if (err < 0)
3932 return err;
3933 }
3934
3935 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3936 sizeof(ver));
3937 if (err < 0)
3938 return err;
3939
3940 btdata->qca_dump.fw_version = le32_to_cpu(ver.patch_version);
3941 btdata->qca_dump.controller_id = le32_to_cpu(ver.rom_version);
3942
3943 if (!(status & QCA_SYSCFG_UPDATED)) {
3944 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
3945 if (err < 0)
3946 return err;
3947
3948 /* WCN6855 2.1 and later will reset to apply firmware downloaded here, so
3949 * wait ~100ms for reset Done then go ahead, otherwise, it maybe
3950 * cause potential enable failure.
3951 */
3952 if (info->rom_version >= 0x00130201)
3953 msleep(QCA_BT_RESET_WAIT_MS);
3954 }
3955
3956 /* Mark HCI_OP_ENHANCED_SETUP_SYNC_CONN as broken as it doesn't seem to
3957 * work with the likes of HSP/HFP mSBC.
3958 */
3959 set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks);
3960
3961 return 0;
3962 }
3963
__set_diag_interface(struct hci_dev * hdev)3964 static inline int __set_diag_interface(struct hci_dev *hdev)
3965 {
3966 struct btusb_data *data = hci_get_drvdata(hdev);
3967 struct usb_interface *intf = data->diag;
3968 int i;
3969
3970 if (!data->diag)
3971 return -ENODEV;
3972
3973 data->diag_tx_ep = NULL;
3974 data->diag_rx_ep = NULL;
3975
3976 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
3977 struct usb_endpoint_descriptor *ep_desc;
3978
3979 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
3980
3981 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
3982 data->diag_tx_ep = ep_desc;
3983 continue;
3984 }
3985
3986 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
3987 data->diag_rx_ep = ep_desc;
3988 continue;
3989 }
3990 }
3991
3992 if (!data->diag_tx_ep || !data->diag_rx_ep) {
3993 bt_dev_err(hdev, "invalid diagnostic descriptors");
3994 return -ENODEV;
3995 }
3996
3997 return 0;
3998 }
3999
alloc_diag_urb(struct hci_dev * hdev,bool enable)4000 static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable)
4001 {
4002 struct btusb_data *data = hci_get_drvdata(hdev);
4003 struct sk_buff *skb;
4004 struct urb *urb;
4005 unsigned int pipe;
4006
4007 if (!data->diag_tx_ep)
4008 return ERR_PTR(-ENODEV);
4009
4010 urb = usb_alloc_urb(0, GFP_KERNEL);
4011 if (!urb)
4012 return ERR_PTR(-ENOMEM);
4013
4014 skb = bt_skb_alloc(2, GFP_KERNEL);
4015 if (!skb) {
4016 usb_free_urb(urb);
4017 return ERR_PTR(-ENOMEM);
4018 }
4019
4020 skb_put_u8(skb, 0xf0);
4021 skb_put_u8(skb, enable);
4022
4023 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress);
4024
4025 usb_fill_bulk_urb(urb, data->udev, pipe,
4026 skb->data, skb->len, btusb_tx_complete, skb);
4027
4028 skb->dev = (void *)hdev;
4029
4030 return urb;
4031 }
4032
btusb_bcm_set_diag(struct hci_dev * hdev,bool enable)4033 static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable)
4034 {
4035 struct btusb_data *data = hci_get_drvdata(hdev);
4036 struct urb *urb;
4037
4038 if (!data->diag)
4039 return -ENODEV;
4040
4041 if (!test_bit(HCI_RUNNING, &hdev->flags))
4042 return -ENETDOWN;
4043
4044 urb = alloc_diag_urb(hdev, enable);
4045 if (IS_ERR(urb))
4046 return PTR_ERR(urb);
4047
4048 return submit_or_queue_tx_urb(hdev, urb);
4049 }
4050
4051 #ifdef CONFIG_PM
btusb_oob_wake_handler(int irq,void * priv)4052 static irqreturn_t btusb_oob_wake_handler(int irq, void *priv)
4053 {
4054 struct btusb_data *data = priv;
4055
4056 pm_wakeup_event(&data->udev->dev, 0);
4057 pm_system_wakeup();
4058
4059 /* Disable only if not already disabled (keep it balanced) */
4060 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
4061 disable_irq_nosync(irq);
4062 disable_irq_wake(irq);
4063 }
4064 return IRQ_HANDLED;
4065 }
4066
4067 static const struct of_device_id btusb_match_table[] = {
4068 { .compatible = "usb1286,204e" },
4069 { .compatible = "usbcf3,e300" }, /* QCA6174A */
4070 { .compatible = "usb4ca,301a" }, /* QCA6174A (Lite-On) */
4071 { }
4072 };
4073 MODULE_DEVICE_TABLE(of, btusb_match_table);
4074
4075 /* Use an oob wakeup pin? */
btusb_config_oob_wake(struct hci_dev * hdev)4076 static int btusb_config_oob_wake(struct hci_dev *hdev)
4077 {
4078 struct btusb_data *data = hci_get_drvdata(hdev);
4079 struct device *dev = &data->udev->dev;
4080 int irq, ret;
4081
4082 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
4083
4084 if (!of_match_device(btusb_match_table, dev))
4085 return 0;
4086
4087 /* Move on if no IRQ specified */
4088 irq = of_irq_get_byname(dev->of_node, "wakeup");
4089 if (irq <= 0) {
4090 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__);
4091 return 0;
4092 }
4093
4094 irq_set_status_flags(irq, IRQ_NOAUTOEN);
4095 ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler,
4096 0, "OOB Wake-on-BT", data);
4097 if (ret) {
4098 bt_dev_err(hdev, "%s: IRQ request failed", __func__);
4099 return ret;
4100 }
4101
4102 ret = device_init_wakeup(dev, true);
4103 if (ret) {
4104 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__);
4105 return ret;
4106 }
4107
4108 data->oob_wake_irq = irq;
4109 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq);
4110 return 0;
4111 }
4112 #endif
4113
btusb_check_needs_reset_resume(struct usb_interface * intf)4114 static void btusb_check_needs_reset_resume(struct usb_interface *intf)
4115 {
4116 if (dmi_check_system(btusb_needs_reset_resume_table))
4117 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
4118 }
4119
btusb_wakeup(struct hci_dev * hdev)4120 static bool btusb_wakeup(struct hci_dev *hdev)
4121 {
4122 struct btusb_data *data = hci_get_drvdata(hdev);
4123
4124 return device_may_wakeup(&data->udev->dev);
4125 }
4126
btusb_shutdown_qca(struct hci_dev * hdev)4127 static int btusb_shutdown_qca(struct hci_dev *hdev)
4128 {
4129 struct sk_buff *skb;
4130
4131 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
4132 if (IS_ERR(skb)) {
4133 bt_dev_err(hdev, "HCI reset during shutdown failed");
4134 return PTR_ERR(skb);
4135 }
4136 kfree_skb(skb);
4137
4138 return 0;
4139 }
4140
force_poll_sync_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)4141 static ssize_t force_poll_sync_read(struct file *file, char __user *user_buf,
4142 size_t count, loff_t *ppos)
4143 {
4144 struct btusb_data *data = file->private_data;
4145 char buf[3];
4146
4147 buf[0] = data->poll_sync ? 'Y' : 'N';
4148 buf[1] = '\n';
4149 buf[2] = '\0';
4150 return simple_read_from_buffer(user_buf, count, ppos, buf, 2);
4151 }
4152
force_poll_sync_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)4153 static ssize_t force_poll_sync_write(struct file *file,
4154 const char __user *user_buf,
4155 size_t count, loff_t *ppos)
4156 {
4157 struct btusb_data *data = file->private_data;
4158 bool enable;
4159 int err;
4160
4161 err = kstrtobool_from_user(user_buf, count, &enable);
4162 if (err)
4163 return err;
4164
4165 /* Only allow changes while the adapter is down */
4166 if (test_bit(HCI_UP, &data->hdev->flags))
4167 return -EPERM;
4168
4169 if (data->poll_sync == enable)
4170 return -EALREADY;
4171
4172 data->poll_sync = enable;
4173
4174 return count;
4175 }
4176
4177 static const struct file_operations force_poll_sync_fops = {
4178 .open = simple_open,
4179 .read = force_poll_sync_read,
4180 .write = force_poll_sync_write,
4181 .llseek = default_llseek,
4182 };
4183
btusb_probe(struct usb_interface * intf,const struct usb_device_id * id)4184 static int btusb_probe(struct usb_interface *intf,
4185 const struct usb_device_id *id)
4186 {
4187 struct usb_endpoint_descriptor *ep_desc;
4188 struct gpio_desc *reset_gpio;
4189 struct btusb_data *data;
4190 struct hci_dev *hdev;
4191 unsigned ifnum_base;
4192 int i, err, priv_size;
4193
4194 BT_DBG("intf %p id %p", intf, id);
4195
4196 if ((id->driver_info & BTUSB_IFNUM_2) &&
4197 (intf->cur_altsetting->desc.bInterfaceNumber != 0) &&
4198 (intf->cur_altsetting->desc.bInterfaceNumber != 2))
4199 return -ENODEV;
4200
4201 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber;
4202
4203 if (!id->driver_info) {
4204 const struct usb_device_id *match;
4205
4206 match = usb_match_id(intf, quirks_table);
4207 if (match)
4208 id = match;
4209 }
4210
4211 if (id->driver_info == BTUSB_IGNORE)
4212 return -ENODEV;
4213
4214 if (id->driver_info & BTUSB_ATH3012) {
4215 struct usb_device *udev = interface_to_usbdev(intf);
4216
4217 /* Old firmware would otherwise let ath3k driver load
4218 * patch and sysconfig files
4219 */
4220 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 &&
4221 !btusb_qca_need_patch(udev))
4222 return -ENODEV;
4223 }
4224
4225 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
4226 if (!data)
4227 return -ENOMEM;
4228
4229 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
4230 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
4231
4232 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
4233 data->intr_ep = ep_desc;
4234 continue;
4235 }
4236
4237 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
4238 data->bulk_tx_ep = ep_desc;
4239 continue;
4240 }
4241
4242 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
4243 data->bulk_rx_ep = ep_desc;
4244 continue;
4245 }
4246 }
4247
4248 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
4249 return -ENODEV;
4250
4251 if (id->driver_info & BTUSB_AMP) {
4252 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
4253 data->cmdreq = 0x2b;
4254 } else {
4255 data->cmdreq_type = USB_TYPE_CLASS;
4256 data->cmdreq = 0x00;
4257 }
4258
4259 data->udev = interface_to_usbdev(intf);
4260 data->intf = intf;
4261
4262 INIT_WORK(&data->work, btusb_work);
4263 INIT_WORK(&data->waker, btusb_waker);
4264 INIT_DELAYED_WORK(&data->rx_work, btusb_rx_work);
4265
4266 skb_queue_head_init(&data->acl_q);
4267
4268 init_usb_anchor(&data->deferred);
4269 init_usb_anchor(&data->tx_anchor);
4270 spin_lock_init(&data->txlock);
4271
4272 init_usb_anchor(&data->intr_anchor);
4273 init_usb_anchor(&data->bulk_anchor);
4274 init_usb_anchor(&data->isoc_anchor);
4275 init_usb_anchor(&data->diag_anchor);
4276 init_usb_anchor(&data->ctrl_anchor);
4277 spin_lock_init(&data->rxlock);
4278
4279 priv_size = 0;
4280
4281 data->recv_event = hci_recv_frame;
4282 data->recv_bulk = btusb_recv_bulk;
4283
4284 if (id->driver_info & BTUSB_INTEL_COMBINED) {
4285 /* Allocate extra space for Intel device */
4286 priv_size += sizeof(struct btintel_data);
4287
4288 /* Override the rx handlers */
4289 data->recv_event = btintel_recv_event;
4290 data->recv_bulk = btusb_recv_bulk_intel;
4291 } else if (id->driver_info & BTUSB_REALTEK) {
4292 /* Allocate extra space for Realtek device */
4293 priv_size += sizeof(struct btrealtek_data);
4294
4295 data->recv_event = btusb_recv_event_realtek;
4296 } else if (id->driver_info & BTUSB_MEDIATEK) {
4297 /* Allocate extra space for Mediatek device */
4298 priv_size += sizeof(struct btmediatek_data);
4299 }
4300
4301 data->recv_acl = hci_recv_frame;
4302
4303 hdev = hci_alloc_dev_priv(priv_size);
4304 if (!hdev)
4305 return -ENOMEM;
4306
4307 hdev->bus = HCI_USB;
4308 hci_set_drvdata(hdev, data);
4309
4310 if (id->driver_info & BTUSB_AMP)
4311 hdev->dev_type = HCI_AMP;
4312 else
4313 hdev->dev_type = HCI_PRIMARY;
4314
4315 data->hdev = hdev;
4316
4317 SET_HCIDEV_DEV(hdev, &intf->dev);
4318
4319 reset_gpio = gpiod_get_optional(&data->udev->dev, "reset",
4320 GPIOD_OUT_LOW);
4321 if (IS_ERR(reset_gpio)) {
4322 err = PTR_ERR(reset_gpio);
4323 goto out_free_dev;
4324 } else if (reset_gpio) {
4325 data->reset_gpio = reset_gpio;
4326 }
4327
4328 hdev->open = btusb_open;
4329 hdev->close = btusb_close;
4330 hdev->flush = btusb_flush;
4331 hdev->send = btusb_send_frame;
4332 hdev->notify = btusb_notify;
4333 hdev->wakeup = btusb_wakeup;
4334
4335 #ifdef CONFIG_PM
4336 err = btusb_config_oob_wake(hdev);
4337 if (err)
4338 goto out_free_dev;
4339
4340 /* Marvell devices may need a specific chip configuration */
4341 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) {
4342 err = marvell_config_oob_wake(hdev);
4343 if (err)
4344 goto out_free_dev;
4345 }
4346 #endif
4347 if (id->driver_info & BTUSB_CW6622)
4348 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
4349
4350 if (id->driver_info & BTUSB_BCM2045)
4351 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
4352
4353 if (id->driver_info & BTUSB_BCM92035)
4354 hdev->setup = btusb_setup_bcm92035;
4355
4356 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
4357 (id->driver_info & BTUSB_BCM_PATCHRAM)) {
4358 hdev->manufacturer = 15;
4359 hdev->setup = btbcm_setup_patchram;
4360 hdev->set_diag = btusb_bcm_set_diag;
4361 hdev->set_bdaddr = btbcm_set_bdaddr;
4362
4363 /* Broadcom LM_DIAG Interface numbers are hardcoded */
4364 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
4365 }
4366
4367 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
4368 (id->driver_info & BTUSB_BCM_APPLE)) {
4369 hdev->manufacturer = 15;
4370 hdev->setup = btbcm_setup_apple;
4371 hdev->set_diag = btusb_bcm_set_diag;
4372
4373 /* Broadcom LM_DIAG Interface numbers are hardcoded */
4374 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
4375 }
4376
4377 /* Combined Intel Device setup to support multiple setup routine */
4378 if (id->driver_info & BTUSB_INTEL_COMBINED) {
4379 err = btintel_configure_setup(hdev, btusb_driver.name);
4380 if (err)
4381 goto out_free_dev;
4382
4383 /* Transport specific configuration */
4384 hdev->send = btusb_send_frame_intel;
4385 hdev->cmd_timeout = btusb_intel_cmd_timeout;
4386
4387 if (id->driver_info & BTUSB_INTEL_NO_WBS_SUPPORT)
4388 btintel_set_flag(hdev, INTEL_ROM_LEGACY_NO_WBS_SUPPORT);
4389
4390 if (id->driver_info & BTUSB_INTEL_BROKEN_INITIAL_NCMD)
4391 btintel_set_flag(hdev, INTEL_BROKEN_INITIAL_NCMD);
4392
4393 if (id->driver_info & BTUSB_INTEL_BROKEN_SHUTDOWN_LED)
4394 btintel_set_flag(hdev, INTEL_BROKEN_SHUTDOWN_LED);
4395 }
4396
4397 if (id->driver_info & BTUSB_MARVELL)
4398 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
4399
4400 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_MTK) &&
4401 (id->driver_info & BTUSB_MEDIATEK)) {
4402 hdev->setup = btusb_mtk_setup;
4403 hdev->shutdown = btusb_mtk_shutdown;
4404 hdev->manufacturer = 70;
4405 hdev->cmd_timeout = btmtk_reset_sync;
4406 hdev->set_bdaddr = btmtk_set_bdaddr;
4407 set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks);
4408 set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
4409 data->recv_acl = btusb_recv_acl_mtk;
4410 }
4411
4412 if (id->driver_info & BTUSB_SWAVE) {
4413 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
4414 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
4415 }
4416
4417 if (id->driver_info & BTUSB_INTEL_BOOT) {
4418 hdev->manufacturer = 2;
4419 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
4420 }
4421
4422 if (id->driver_info & BTUSB_ATH3012) {
4423 data->setup_on_usb = btusb_setup_qca;
4424 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
4425 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4426 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
4427 }
4428
4429 if (id->driver_info & BTUSB_QCA_ROME) {
4430 data->setup_on_usb = btusb_setup_qca;
4431 hdev->shutdown = btusb_shutdown_qca;
4432 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
4433 hdev->cmd_timeout = btusb_qca_cmd_timeout;
4434 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4435 btusb_check_needs_reset_resume(intf);
4436 }
4437
4438 if (id->driver_info & BTUSB_QCA_WCN6855) {
4439 data->qca_dump.id_vendor = id->idVendor;
4440 data->qca_dump.id_product = id->idProduct;
4441 data->recv_event = btusb_recv_evt_qca;
4442 data->recv_acl = btusb_recv_acl_qca;
4443 hci_devcd_register(hdev, btusb_coredump_qca, btusb_dump_hdr_qca, NULL);
4444 data->setup_on_usb = btusb_setup_qca;
4445 hdev->shutdown = btusb_shutdown_qca;
4446 hdev->set_bdaddr = btusb_set_bdaddr_wcn6855;
4447 hdev->cmd_timeout = btusb_qca_cmd_timeout;
4448 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4449 hci_set_msft_opcode(hdev, 0xFD70);
4450 }
4451
4452 if (id->driver_info & BTUSB_AMP) {
4453 /* AMP controllers do not support SCO packets */
4454 data->isoc = NULL;
4455 } else {
4456 /* Interface orders are hardcoded in the specification */
4457 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1);
4458 data->isoc_ifnum = ifnum_base + 1;
4459 }
4460
4461 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_RTL) &&
4462 (id->driver_info & BTUSB_REALTEK)) {
4463 btrtl_set_driver_name(hdev, btusb_driver.name);
4464 hdev->setup = btusb_setup_realtek;
4465 hdev->shutdown = btrtl_shutdown_realtek;
4466 hdev->cmd_timeout = btusb_rtl_cmd_timeout;
4467 hdev->hw_error = btusb_rtl_hw_error;
4468
4469 /* Realtek devices need to set remote wakeup on auto-suspend */
4470 set_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags);
4471 set_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags);
4472 }
4473
4474 if (id->driver_info & BTUSB_ACTIONS_SEMI) {
4475 /* Support is advertised, but not implemented */
4476 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks);
4477 set_bit(HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER, &hdev->quirks);
4478 set_bit(HCI_QUIRK_BROKEN_SET_RPA_TIMEOUT, &hdev->quirks);
4479 set_bit(HCI_QUIRK_BROKEN_EXT_SCAN, &hdev->quirks);
4480 }
4481
4482 if (!reset)
4483 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
4484
4485 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
4486 if (!disable_scofix)
4487 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
4488 }
4489
4490 if (id->driver_info & BTUSB_BROKEN_ISOC)
4491 data->isoc = NULL;
4492
4493 if (id->driver_info & BTUSB_WIDEBAND_SPEECH)
4494 set_bit(HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED, &hdev->quirks);
4495
4496 if (id->driver_info & BTUSB_VALID_LE_STATES)
4497 set_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks);
4498
4499 if (id->driver_info & BTUSB_DIGIANSWER) {
4500 data->cmdreq_type = USB_TYPE_VENDOR;
4501 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
4502 }
4503
4504 if (id->driver_info & BTUSB_CSR) {
4505 struct usb_device *udev = data->udev;
4506 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
4507
4508 /* Old firmware would otherwise execute USB reset */
4509 if (bcdDevice < 0x117)
4510 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
4511
4512 /* This must be set first in case we disable it for fakes */
4513 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4514
4515 /* Fake CSR devices with broken commands */
4516 if (le16_to_cpu(udev->descriptor.idVendor) == 0x0a12 &&
4517 le16_to_cpu(udev->descriptor.idProduct) == 0x0001)
4518 hdev->setup = btusb_setup_csr;
4519 }
4520
4521 if (id->driver_info & BTUSB_SNIFFER) {
4522 struct usb_device *udev = data->udev;
4523
4524 /* New sniffer firmware has crippled HCI interface */
4525 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
4526 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
4527 }
4528
4529 if (id->driver_info & BTUSB_INTEL_BOOT) {
4530 /* A bug in the bootloader causes that interrupt interface is
4531 * only enabled after receiving SetInterface(0, AltSetting=0).
4532 */
4533 err = usb_set_interface(data->udev, 0, 0);
4534 if (err < 0) {
4535 BT_ERR("failed to set interface 0, alt 0 %d", err);
4536 goto out_free_dev;
4537 }
4538 }
4539
4540 if (data->isoc) {
4541 err = usb_driver_claim_interface(&btusb_driver,
4542 data->isoc, data);
4543 if (err < 0)
4544 goto out_free_dev;
4545 }
4546
4547 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && data->diag) {
4548 if (!usb_driver_claim_interface(&btusb_driver,
4549 data->diag, data))
4550 __set_diag_interface(hdev);
4551 else
4552 data->diag = NULL;
4553 }
4554
4555 if (enable_autosuspend)
4556 usb_enable_autosuspend(data->udev);
4557
4558 data->poll_sync = enable_poll_sync;
4559
4560 err = hci_register_dev(hdev);
4561 if (err < 0)
4562 goto out_free_dev;
4563
4564 usb_set_intfdata(intf, data);
4565
4566 debugfs_create_file("force_poll_sync", 0644, hdev->debugfs, data,
4567 &force_poll_sync_fops);
4568
4569 return 0;
4570
4571 out_free_dev:
4572 if (data->reset_gpio)
4573 gpiod_put(data->reset_gpio);
4574 hci_free_dev(hdev);
4575 return err;
4576 }
4577
btusb_disconnect(struct usb_interface * intf)4578 static void btusb_disconnect(struct usb_interface *intf)
4579 {
4580 struct btusb_data *data = usb_get_intfdata(intf);
4581 struct hci_dev *hdev;
4582
4583 BT_DBG("intf %p", intf);
4584
4585 if (!data)
4586 return;
4587
4588 hdev = data->hdev;
4589 usb_set_intfdata(data->intf, NULL);
4590
4591 if (data->isoc)
4592 usb_set_intfdata(data->isoc, NULL);
4593
4594 if (data->diag)
4595 usb_set_intfdata(data->diag, NULL);
4596
4597 hci_unregister_dev(hdev);
4598
4599 if (intf == data->intf) {
4600 if (data->isoc)
4601 usb_driver_release_interface(&btusb_driver, data->isoc);
4602 if (data->diag)
4603 usb_driver_release_interface(&btusb_driver, data->diag);
4604 } else if (intf == data->isoc) {
4605 if (data->diag)
4606 usb_driver_release_interface(&btusb_driver, data->diag);
4607 usb_driver_release_interface(&btusb_driver, data->intf);
4608 } else if (intf == data->diag) {
4609 usb_driver_release_interface(&btusb_driver, data->intf);
4610 if (data->isoc)
4611 usb_driver_release_interface(&btusb_driver, data->isoc);
4612 }
4613
4614 if (data->oob_wake_irq)
4615 device_init_wakeup(&data->udev->dev, false);
4616
4617 if (data->reset_gpio)
4618 gpiod_put(data->reset_gpio);
4619
4620 hci_free_dev(hdev);
4621 }
4622
4623 #ifdef CONFIG_PM
btusb_suspend(struct usb_interface * intf,pm_message_t message)4624 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
4625 {
4626 struct btusb_data *data = usb_get_intfdata(intf);
4627
4628 BT_DBG("intf %p", intf);
4629
4630 if (data->suspend_count++)
4631 return 0;
4632
4633 spin_lock_irq(&data->txlock);
4634 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
4635 set_bit(BTUSB_SUSPENDING, &data->flags);
4636 spin_unlock_irq(&data->txlock);
4637 } else {
4638 spin_unlock_irq(&data->txlock);
4639 data->suspend_count--;
4640 return -EBUSY;
4641 }
4642
4643 cancel_work_sync(&data->work);
4644
4645 btusb_stop_traffic(data);
4646 usb_kill_anchored_urbs(&data->tx_anchor);
4647
4648 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) {
4649 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
4650 enable_irq_wake(data->oob_wake_irq);
4651 enable_irq(data->oob_wake_irq);
4652 }
4653
4654 /* For global suspend, Realtek devices lose the loaded fw
4655 * in them. But for autosuspend, firmware should remain.
4656 * Actually, it depends on whether the usb host sends
4657 * set feature (enable wakeup) or not.
4658 */
4659 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) {
4660 if (PMSG_IS_AUTO(message) &&
4661 device_can_wakeup(&data->udev->dev))
4662 data->udev->do_remote_wakeup = 1;
4663 else if (!PMSG_IS_AUTO(message) &&
4664 !device_may_wakeup(&data->udev->dev)) {
4665 data->udev->do_remote_wakeup = 0;
4666 data->udev->reset_resume = 1;
4667 }
4668 }
4669
4670 return 0;
4671 }
4672
play_deferred(struct btusb_data * data)4673 static void play_deferred(struct btusb_data *data)
4674 {
4675 struct urb *urb;
4676 int err;
4677
4678 while ((urb = usb_get_from_anchor(&data->deferred))) {
4679 usb_anchor_urb(urb, &data->tx_anchor);
4680
4681 err = usb_submit_urb(urb, GFP_ATOMIC);
4682 if (err < 0) {
4683 if (err != -EPERM && err != -ENODEV)
4684 BT_ERR("%s urb %p submission failed (%d)",
4685 data->hdev->name, urb, -err);
4686 kfree(urb->setup_packet);
4687 usb_unanchor_urb(urb);
4688 usb_free_urb(urb);
4689 break;
4690 }
4691
4692 data->tx_in_flight++;
4693 usb_free_urb(urb);
4694 }
4695
4696 /* Cleanup the rest deferred urbs. */
4697 while ((urb = usb_get_from_anchor(&data->deferred))) {
4698 kfree(urb->setup_packet);
4699 usb_free_urb(urb);
4700 }
4701 }
4702
btusb_resume(struct usb_interface * intf)4703 static int btusb_resume(struct usb_interface *intf)
4704 {
4705 struct btusb_data *data = usb_get_intfdata(intf);
4706 struct hci_dev *hdev = data->hdev;
4707 int err = 0;
4708
4709 BT_DBG("intf %p", intf);
4710
4711 if (--data->suspend_count)
4712 return 0;
4713
4714 /* Disable only if not already disabled (keep it balanced) */
4715 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
4716 disable_irq(data->oob_wake_irq);
4717 disable_irq_wake(data->oob_wake_irq);
4718 }
4719
4720 if (!test_bit(HCI_RUNNING, &hdev->flags))
4721 goto done;
4722
4723 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
4724 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
4725 if (err < 0) {
4726 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
4727 goto failed;
4728 }
4729 }
4730
4731 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
4732 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
4733 if (err < 0) {
4734 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
4735 goto failed;
4736 }
4737
4738 btusb_submit_bulk_urb(hdev, GFP_NOIO);
4739 }
4740
4741 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
4742 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
4743 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
4744 else
4745 btusb_submit_isoc_urb(hdev, GFP_NOIO);
4746 }
4747
4748 spin_lock_irq(&data->txlock);
4749 play_deferred(data);
4750 clear_bit(BTUSB_SUSPENDING, &data->flags);
4751 spin_unlock_irq(&data->txlock);
4752 schedule_work(&data->work);
4753
4754 return 0;
4755
4756 failed:
4757 usb_scuttle_anchored_urbs(&data->deferred);
4758 done:
4759 spin_lock_irq(&data->txlock);
4760 clear_bit(BTUSB_SUSPENDING, &data->flags);
4761 spin_unlock_irq(&data->txlock);
4762
4763 return err;
4764 }
4765 #endif
4766
4767 #ifdef CONFIG_DEV_COREDUMP
btusb_coredump(struct device * dev)4768 static void btusb_coredump(struct device *dev)
4769 {
4770 struct btusb_data *data = dev_get_drvdata(dev);
4771 struct hci_dev *hdev = data->hdev;
4772
4773 if (hdev->dump.coredump)
4774 hdev->dump.coredump(hdev);
4775 }
4776 #endif
4777
4778 static struct usb_driver btusb_driver = {
4779 .name = "btusb",
4780 .probe = btusb_probe,
4781 .disconnect = btusb_disconnect,
4782 #ifdef CONFIG_PM
4783 .suspend = btusb_suspend,
4784 .resume = btusb_resume,
4785 #endif
4786 .id_table = btusb_table,
4787 .supports_autosuspend = 1,
4788 .disable_hub_initiated_lpm = 1,
4789
4790 #ifdef CONFIG_DEV_COREDUMP
4791 .drvwrap = {
4792 .driver = {
4793 .coredump = btusb_coredump,
4794 },
4795 },
4796 #endif
4797 };
4798
4799 module_usb_driver(btusb_driver);
4800
4801 module_param(disable_scofix, bool, 0644);
4802 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
4803
4804 module_param(force_scofix, bool, 0644);
4805 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
4806
4807 module_param(enable_autosuspend, bool, 0644);
4808 MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default");
4809
4810 module_param(reset, bool, 0644);
4811 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
4812
4813 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
4814 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
4815 MODULE_VERSION(VERSION);
4816 MODULE_LICENSE("GPL");
4817