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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
32static bool disable_scofix;
33static bool force_scofix;
34static bool enable_autosuspend = IS_ENABLED(CONFIG_BT_HCIBTUSB_AUTOSUSPEND);
35static bool enable_poll_sync = IS_ENABLED(CONFIG_BT_HCIBTUSB_POLL_SYNC);
36static bool reset = true;
37
38static 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
68static const struct usb_device_id btusb_table[] = {
69 /* Generic Bluetooth USB device */
70 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
71
72 /* Generic Bluetooth AMP device */
73 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP },
74
75 /* Generic Bluetooth USB interface */
76 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) },
77
78 /* Apple-specific (Broadcom) devices */
79 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01),
80 .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 },
81
82 /* MediaTek MT76x0E */
83 { USB_DEVICE(0x0e8d, 0x763f) },
84
85 /* Broadcom SoftSailing reporting vendor specific */
86 { USB_DEVICE(0x0a5c, 0x21e1) },
87
88 /* Apple MacBookPro 7,1 */
89 { USB_DEVICE(0x05ac, 0x8213) },
90
91 /* Apple iMac11,1 */
92 { USB_DEVICE(0x05ac, 0x8215) },
93
94 /* Apple MacBookPro6,2 */
95 { USB_DEVICE(0x05ac, 0x8218) },
96
97 /* Apple MacBookAir3,1, MacBookAir3,2 */
98 { USB_DEVICE(0x05ac, 0x821b) },
99
100 /* Apple MacBookAir4,1 */
101 { USB_DEVICE(0x05ac, 0x821f) },
102
103 /* Apple MacBookPro8,2 */
104 { USB_DEVICE(0x05ac, 0x821a) },
105
106 /* Apple MacMini5,1 */
107 { USB_DEVICE(0x05ac, 0x8281) },
108
109 /* AVM BlueFRITZ! USB v2.0 */
110 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE },
111
112 /* Bluetooth Ultraport Module from IBM */
113 { USB_DEVICE(0x04bf, 0x030a) },
114
115 /* ALPS Modules with non-standard id */
116 { USB_DEVICE(0x044e, 0x3001) },
117 { USB_DEVICE(0x044e, 0x3002) },
118
119 /* Ericsson with non-standard id */
120 { USB_DEVICE(0x0bdb, 0x1002) },
121
122 /* Canyon CN-BTU1 with HID interfaces */
123 { USB_DEVICE(0x0c10, 0x0000) },
124
125 /* Broadcom BCM20702B0 (Dynex/Insignia) */
126 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM },
127
128 /* Broadcom BCM43142A0 (Foxconn/Lenovo) */
129 { USB_VENDOR_AND_INTERFACE_INFO(0x105b, 0xff, 0x01, 0x01),
130 .driver_info = BTUSB_BCM_PATCHRAM },
131
132 /* Broadcom BCM920703 (HTC Vive) */
133 { USB_VENDOR_AND_INTERFACE_INFO(0x0bb4, 0xff, 0x01, 0x01),
134 .driver_info = BTUSB_BCM_PATCHRAM },
135
136 /* Foxconn - Hon Hai */
137 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01),
138 .driver_info = BTUSB_BCM_PATCHRAM },
139
140 /* Lite-On Technology - Broadcom based */
141 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01),
142 .driver_info = BTUSB_BCM_PATCHRAM },
143
144 /* Broadcom devices with vendor specific id */
145 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01),
146 .driver_info = BTUSB_BCM_PATCHRAM },
147
148 /* ASUSTek Computer - Broadcom based */
149 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01),
150 .driver_info = BTUSB_BCM_PATCHRAM },
151
152 /* Belkin F8065bf - Broadcom based */
153 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01),
154 .driver_info = BTUSB_BCM_PATCHRAM },
155
156 /* IMC Networks - Broadcom based */
157 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01),
158 .driver_info = BTUSB_BCM_PATCHRAM },
159
160 /* Dell Computer - Broadcom based */
161 { USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01),
162 .driver_info = BTUSB_BCM_PATCHRAM },
163
164 /* Toshiba Corp - Broadcom based */
165 { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01),
166 .driver_info = BTUSB_BCM_PATCHRAM },
167
168 /* Intel Bluetooth USB Bootloader (RAM module) */
169 { USB_DEVICE(0x8087, 0x0a5a),
170 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
171
172 { } /* Terminating entry */
173};
174
175MODULE_DEVICE_TABLE(usb, btusb_table);
176
177static const struct usb_device_id blacklist_table[] = {
178 /* CSR BlueCore devices */
179 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
180
181 /* Broadcom BCM2033 without firmware */
182 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
183
184 /* Broadcom BCM2045 devices */
185 { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 },
186
187 /* Atheros 3011 with sflash firmware */
188 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
189 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
190 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE },
191 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
192 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
193 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
194 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
195
196 /* Atheros AR9285 Malbec with sflash firmware */
197 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
198
199 /* Atheros 3012 with sflash firmware */
200 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
201 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
202 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
203 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
204 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
205 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
206 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
207 { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 },
208 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
209 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
210 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
211 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
212 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
213 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
214 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
215 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
216 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
217 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
218 { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 },
219 { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 },
220 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
221 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
222 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
223 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
224 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
225 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
226 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
227 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
228 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
229 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
230 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
231 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
232 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
233 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 },
234 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
235 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
236 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
237 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
238 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
239 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
240 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
241 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 },
242 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
243 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
244 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
245 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
246 { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 },
247 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
248 { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 },
249 { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 },
250
251 /* Atheros AR5BBU12 with sflash firmware */
252 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
253
254 /* Atheros AR5BBU12 with sflash firmware */
255 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
256 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
257
258 /* QCA ROME chipset */
259 { USB_DEVICE(0x0cf3, 0x535b), .driver_info = BTUSB_QCA_ROME |
260 BTUSB_WIDEBAND_SPEECH },
261 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME |
262 BTUSB_WIDEBAND_SPEECH },
263 { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME |
264 BTUSB_WIDEBAND_SPEECH },
265 { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME |
266 BTUSB_WIDEBAND_SPEECH },
267 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME |
268 BTUSB_WIDEBAND_SPEECH },
269 { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME |
270 BTUSB_WIDEBAND_SPEECH },
271 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME |
272 BTUSB_WIDEBAND_SPEECH },
273 { USB_DEVICE(0x0cf3, 0xe500), .driver_info = BTUSB_QCA_ROME |
274 BTUSB_WIDEBAND_SPEECH },
275 { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME |
276 BTUSB_WIDEBAND_SPEECH },
277 { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME |
278 BTUSB_WIDEBAND_SPEECH },
279 { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME |
280 BTUSB_WIDEBAND_SPEECH },
281 { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME |
282 BTUSB_WIDEBAND_SPEECH },
283 { USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME |
284 BTUSB_WIDEBAND_SPEECH },
285 { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME |
286 BTUSB_WIDEBAND_SPEECH },
287 { USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME |
288 BTUSB_WIDEBAND_SPEECH },
289 { USB_DEVICE(0x04ca, 0x3021), .driver_info = BTUSB_QCA_ROME |
290 BTUSB_WIDEBAND_SPEECH },
291 { USB_DEVICE(0x13d3, 0x3491), .driver_info = BTUSB_QCA_ROME |
292 BTUSB_WIDEBAND_SPEECH },
293 { USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME |
294 BTUSB_WIDEBAND_SPEECH },
295 { USB_DEVICE(0x13d3, 0x3501), .driver_info = BTUSB_QCA_ROME |
296 BTUSB_WIDEBAND_SPEECH },
297
298 /* QCA WCN6855 chipset */
299 { USB_DEVICE(0x0cf3, 0xe600), .driver_info = BTUSB_QCA_WCN6855 |
300 BTUSB_WIDEBAND_SPEECH |
301 BTUSB_VALID_LE_STATES },
302 { USB_DEVICE(0x0489, 0xe0cc), .driver_info = BTUSB_QCA_WCN6855 |
303 BTUSB_WIDEBAND_SPEECH |
304 BTUSB_VALID_LE_STATES },
305 { USB_DEVICE(0x0489, 0xe0d6), .driver_info = BTUSB_QCA_WCN6855 |
306 BTUSB_WIDEBAND_SPEECH |
307 BTUSB_VALID_LE_STATES },
308 { USB_DEVICE(0x0489, 0xe0e3), .driver_info = BTUSB_QCA_WCN6855 |
309 BTUSB_WIDEBAND_SPEECH |
310 BTUSB_VALID_LE_STATES },
311 { USB_DEVICE(0x10ab, 0x9309), .driver_info = BTUSB_QCA_WCN6855 |
312 BTUSB_WIDEBAND_SPEECH |
313 BTUSB_VALID_LE_STATES },
314 { USB_DEVICE(0x10ab, 0x9409), .driver_info = BTUSB_QCA_WCN6855 |
315 BTUSB_WIDEBAND_SPEECH |
316 BTUSB_VALID_LE_STATES },
317 { USB_DEVICE(0x0489, 0xe0d0), .driver_info = BTUSB_QCA_WCN6855 |
318 BTUSB_WIDEBAND_SPEECH |
319 BTUSB_VALID_LE_STATES },
320 { USB_DEVICE(0x10ab, 0x9108), .driver_info = BTUSB_QCA_WCN6855 |
321 BTUSB_WIDEBAND_SPEECH |
322 BTUSB_VALID_LE_STATES },
323 { USB_DEVICE(0x10ab, 0x9109), .driver_info = BTUSB_QCA_WCN6855 |
324 BTUSB_WIDEBAND_SPEECH |
325 BTUSB_VALID_LE_STATES },
326 { USB_DEVICE(0x10ab, 0x9208), .driver_info = BTUSB_QCA_WCN6855 |
327 BTUSB_WIDEBAND_SPEECH |
328 BTUSB_VALID_LE_STATES },
329 { USB_DEVICE(0x10ab, 0x9209), .driver_info = BTUSB_QCA_WCN6855 |
330 BTUSB_WIDEBAND_SPEECH |
331 BTUSB_VALID_LE_STATES },
332 { USB_DEVICE(0x10ab, 0x9308), .driver_info = BTUSB_QCA_WCN6855 |
333 BTUSB_WIDEBAND_SPEECH |
334 BTUSB_VALID_LE_STATES },
335 { USB_DEVICE(0x10ab, 0x9408), .driver_info = BTUSB_QCA_WCN6855 |
336 BTUSB_WIDEBAND_SPEECH |
337 BTUSB_VALID_LE_STATES },
338 { USB_DEVICE(0x10ab, 0x9508), .driver_info = BTUSB_QCA_WCN6855 |
339 BTUSB_WIDEBAND_SPEECH |
340 BTUSB_VALID_LE_STATES },
341 { USB_DEVICE(0x10ab, 0x9509), .driver_info = BTUSB_QCA_WCN6855 |
342 BTUSB_WIDEBAND_SPEECH |
343 BTUSB_VALID_LE_STATES },
344 { USB_DEVICE(0x10ab, 0x9608), .driver_info = BTUSB_QCA_WCN6855 |
345 BTUSB_WIDEBAND_SPEECH |
346 BTUSB_VALID_LE_STATES },
347 { USB_DEVICE(0x10ab, 0x9609), .driver_info = BTUSB_QCA_WCN6855 |
348 BTUSB_WIDEBAND_SPEECH |
349 BTUSB_VALID_LE_STATES },
350 { USB_DEVICE(0x10ab, 0x9f09), .driver_info = BTUSB_QCA_WCN6855 |
351 BTUSB_WIDEBAND_SPEECH |
352 BTUSB_VALID_LE_STATES },
353 { USB_DEVICE(0x04ca, 0x3022), .driver_info = BTUSB_QCA_WCN6855 |
354 BTUSB_WIDEBAND_SPEECH |
355 BTUSB_VALID_LE_STATES },
356 { USB_DEVICE(0x0489, 0xe0c7), .driver_info = BTUSB_QCA_WCN6855 |
357 BTUSB_WIDEBAND_SPEECH |
358 BTUSB_VALID_LE_STATES },
359 { USB_DEVICE(0x0489, 0xe0c9), .driver_info = BTUSB_QCA_WCN6855 |
360 BTUSB_WIDEBAND_SPEECH |
361 BTUSB_VALID_LE_STATES },
362 { USB_DEVICE(0x0489, 0xe0ca), .driver_info = BTUSB_QCA_WCN6855 |
363 BTUSB_WIDEBAND_SPEECH |
364 BTUSB_VALID_LE_STATES },
365 { USB_DEVICE(0x0489, 0xe0cb), .driver_info = BTUSB_QCA_WCN6855 |
366 BTUSB_WIDEBAND_SPEECH |
367 BTUSB_VALID_LE_STATES },
368 { USB_DEVICE(0x0489, 0xe0ce), .driver_info = BTUSB_QCA_WCN6855 |
369 BTUSB_WIDEBAND_SPEECH |
370 BTUSB_VALID_LE_STATES },
371 { USB_DEVICE(0x0489, 0xe0de), .driver_info = BTUSB_QCA_WCN6855 |
372 BTUSB_WIDEBAND_SPEECH |
373 BTUSB_VALID_LE_STATES },
374 { USB_DEVICE(0x0489, 0xe0df), .driver_info = BTUSB_QCA_WCN6855 |
375 BTUSB_WIDEBAND_SPEECH |
376 BTUSB_VALID_LE_STATES },
377 { USB_DEVICE(0x0489, 0xe0e1), .driver_info = BTUSB_QCA_WCN6855 |
378 BTUSB_WIDEBAND_SPEECH |
379 BTUSB_VALID_LE_STATES },
380 { USB_DEVICE(0x0489, 0xe0ea), .driver_info = BTUSB_QCA_WCN6855 |
381 BTUSB_WIDEBAND_SPEECH |
382 BTUSB_VALID_LE_STATES },
383 { USB_DEVICE(0x0489, 0xe0ec), .driver_info = BTUSB_QCA_WCN6855 |
384 BTUSB_WIDEBAND_SPEECH |
385 BTUSB_VALID_LE_STATES },
386 { USB_DEVICE(0x04ca, 0x3023), .driver_info = BTUSB_QCA_WCN6855 |
387 BTUSB_WIDEBAND_SPEECH |
388 BTUSB_VALID_LE_STATES },
389 { USB_DEVICE(0x04ca, 0x3024), .driver_info = BTUSB_QCA_WCN6855 |
390 BTUSB_WIDEBAND_SPEECH |
391 BTUSB_VALID_LE_STATES },
392 { USB_DEVICE(0x04ca, 0x3a22), .driver_info = BTUSB_QCA_WCN6855 |
393 BTUSB_WIDEBAND_SPEECH |
394 BTUSB_VALID_LE_STATES },
395 { USB_DEVICE(0x04ca, 0x3a24), .driver_info = BTUSB_QCA_WCN6855 |
396 BTUSB_WIDEBAND_SPEECH |
397 BTUSB_VALID_LE_STATES },
398 { USB_DEVICE(0x04ca, 0x3a26), .driver_info = BTUSB_QCA_WCN6855 |
399 BTUSB_WIDEBAND_SPEECH |
400 BTUSB_VALID_LE_STATES },
401 { USB_DEVICE(0x04ca, 0x3a27), .driver_info = BTUSB_QCA_WCN6855 |
402 BTUSB_WIDEBAND_SPEECH |
403 BTUSB_VALID_LE_STATES },
404
405 /* QCA WCN785x chipset */
406 { USB_DEVICE(0x0cf3, 0xe700), .driver_info = BTUSB_QCA_WCN6855 |
407 BTUSB_WIDEBAND_SPEECH |
408 BTUSB_VALID_LE_STATES },
409
410 /* Broadcom BCM2035 */
411 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
412 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
413 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
414
415 /* Broadcom BCM2045 */
416 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
417 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
418
419 /* IBM/Lenovo ThinkPad with Broadcom chip */
420 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
421 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
422
423 /* HP laptop with Broadcom chip */
424 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
425
426 /* Dell laptop with Broadcom chip */
427 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
428
429 /* Dell Wireless 370 and 410 devices */
430 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
431 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
432
433 /* Belkin F8T012 and F8T013 devices */
434 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
435 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
436
437 /* Asus WL-BTD202 device */
438 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
439
440 /* Kensington Bluetooth USB adapter */
441 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
442
443 /* RTX Telecom based adapters with buggy SCO support */
444 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
445 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
446
447 /* CONWISE Technology based adapters with buggy SCO support */
448 { USB_DEVICE(0x0e5e, 0x6622),
449 .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622},
450
451 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
452 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE },
453
454 /* Digianswer devices */
455 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
456 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
457
458 /* CSR BlueCore Bluetooth Sniffer */
459 { USB_DEVICE(0x0a12, 0x0002),
460 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
461
462 /* Frontline ComProbe Bluetooth Sniffer */
463 { USB_DEVICE(0x16d3, 0x0002),
464 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
465
466 /* Marvell Bluetooth devices */
467 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
468 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
469 { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL },
470
471 /* Intel Bluetooth devices */
472 { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_COMBINED },
473 { USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_COMBINED },
474 { USB_DEVICE(0x8087, 0x0029), .driver_info = BTUSB_INTEL_COMBINED },
475 { USB_DEVICE(0x8087, 0x0032), .driver_info = BTUSB_INTEL_COMBINED },
476 { USB_DEVICE(0x8087, 0x0033), .driver_info = BTUSB_INTEL_COMBINED },
477 { USB_DEVICE(0x8087, 0x0035), .driver_info = BTUSB_INTEL_COMBINED },
478 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
479 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL_COMBINED |
480 BTUSB_INTEL_NO_WBS_SUPPORT |
481 BTUSB_INTEL_BROKEN_INITIAL_NCMD |
482 BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
483 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL_COMBINED |
484 BTUSB_INTEL_NO_WBS_SUPPORT |
485 BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
486 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_COMBINED },
487 { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL_COMBINED |
488 BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
489 { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_COMBINED },
490
491 /* Other Intel Bluetooth devices */
492 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
493 .driver_info = BTUSB_IGNORE },
494
495 /* Realtek 8822CE Bluetooth devices */
496 { USB_DEVICE(0x0bda, 0xb00c), .driver_info = BTUSB_REALTEK |
497 BTUSB_WIDEBAND_SPEECH },
498 { USB_DEVICE(0x0bda, 0xc822), .driver_info = BTUSB_REALTEK |
499 BTUSB_WIDEBAND_SPEECH },
500
501 /* Realtek 8822CU Bluetooth devices */
502 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK |
503 BTUSB_WIDEBAND_SPEECH },
504
505 /* Realtek 8852AE Bluetooth devices */
506 { USB_DEVICE(0x0bda, 0x2852), .driver_info = BTUSB_REALTEK |
507 BTUSB_WIDEBAND_SPEECH },
508 { USB_DEVICE(0x0bda, 0xc852), .driver_info = BTUSB_REALTEK |
509 BTUSB_WIDEBAND_SPEECH },
510 { USB_DEVICE(0x0bda, 0x385a), .driver_info = BTUSB_REALTEK |
511 BTUSB_WIDEBAND_SPEECH },
512 { USB_DEVICE(0x0bda, 0x4852), .driver_info = BTUSB_REALTEK |
513 BTUSB_WIDEBAND_SPEECH },
514 { USB_DEVICE(0x04c5, 0x165c), .driver_info = BTUSB_REALTEK |
515 BTUSB_WIDEBAND_SPEECH },
516 { USB_DEVICE(0x04ca, 0x4006), .driver_info = BTUSB_REALTEK |
517 BTUSB_WIDEBAND_SPEECH },
518 { USB_DEVICE(0x0cb8, 0xc549), .driver_info = BTUSB_REALTEK |
519 BTUSB_WIDEBAND_SPEECH },
520
521 /* Realtek 8852CE Bluetooth devices */
522 { USB_DEVICE(0x04ca, 0x4007), .driver_info = BTUSB_REALTEK |
523 BTUSB_WIDEBAND_SPEECH },
524 { USB_DEVICE(0x04c5, 0x1675), .driver_info = BTUSB_REALTEK |
525 BTUSB_WIDEBAND_SPEECH },
526 { USB_DEVICE(0x0cb8, 0xc558), .driver_info = BTUSB_REALTEK |
527 BTUSB_WIDEBAND_SPEECH },
528 { USB_DEVICE(0x13d3, 0x3587), .driver_info = BTUSB_REALTEK |
529 BTUSB_WIDEBAND_SPEECH },
530 { USB_DEVICE(0x13d3, 0x3586), .driver_info = BTUSB_REALTEK |
531 BTUSB_WIDEBAND_SPEECH },
532 { USB_DEVICE(0x13d3, 0x3592), .driver_info = BTUSB_REALTEK |
533 BTUSB_WIDEBAND_SPEECH },
534
535 /* Realtek 8852BE Bluetooth devices */
536 { USB_DEVICE(0x0cb8, 0xc559), .driver_info = BTUSB_REALTEK |
537 BTUSB_WIDEBAND_SPEECH },
538
539 /* Realtek Bluetooth devices */
540 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
541 .driver_info = BTUSB_REALTEK },
542
543 /* MediaTek Bluetooth devices */
544 { USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01),
545 .driver_info = BTUSB_MEDIATEK |
546 BTUSB_WIDEBAND_SPEECH |
547 BTUSB_VALID_LE_STATES },
548
549 /* Additional MediaTek MT7615E Bluetooth devices */
550 { USB_DEVICE(0x13d3, 0x3560), .driver_info = BTUSB_MEDIATEK},
551
552 /* Additional MediaTek MT7663 Bluetooth devices */
553 { USB_DEVICE(0x043e, 0x310c), .driver_info = BTUSB_MEDIATEK |
554 BTUSB_WIDEBAND_SPEECH |
555 BTUSB_VALID_LE_STATES },
556
557 /* Additional MediaTek MT7668 Bluetooth devices */
558 { USB_DEVICE(0x043e, 0x3109), .driver_info = BTUSB_MEDIATEK |
559 BTUSB_WIDEBAND_SPEECH |
560 BTUSB_VALID_LE_STATES },
561
562 /* Additional MediaTek MT7921 Bluetooth devices */
563 { USB_DEVICE(0x0489, 0xe0c8), .driver_info = BTUSB_MEDIATEK |
564 BTUSB_WIDEBAND_SPEECH |
565 BTUSB_VALID_LE_STATES },
566 { USB_DEVICE(0x0489, 0xe0e0), .driver_info = BTUSB_MEDIATEK |
567 BTUSB_WIDEBAND_SPEECH |
568 BTUSB_VALID_LE_STATES },
569 { USB_DEVICE(0x04ca, 0x3802), .driver_info = BTUSB_MEDIATEK |
570 BTUSB_WIDEBAND_SPEECH |
571 BTUSB_VALID_LE_STATES },
572 { USB_DEVICE(0x13d3, 0x3563), .driver_info = BTUSB_MEDIATEK |
573 BTUSB_WIDEBAND_SPEECH |
574 BTUSB_VALID_LE_STATES },
575 { USB_DEVICE(0x13d3, 0x3564), .driver_info = BTUSB_MEDIATEK |
576 BTUSB_WIDEBAND_SPEECH |
577 BTUSB_VALID_LE_STATES },
578 { USB_DEVICE(0x13d3, 0x3567), .driver_info = BTUSB_MEDIATEK |
579 BTUSB_WIDEBAND_SPEECH |
580 BTUSB_VALID_LE_STATES },
581 { USB_DEVICE(0x13d3, 0x3578), .driver_info = BTUSB_MEDIATEK |
582 BTUSB_WIDEBAND_SPEECH |
583 BTUSB_VALID_LE_STATES },
584 { USB_DEVICE(0x13d3, 0x3583), .driver_info = BTUSB_MEDIATEK |
585 BTUSB_WIDEBAND_SPEECH |
586 BTUSB_VALID_LE_STATES },
587 { USB_DEVICE(0x0489, 0xe0cd), .driver_info = BTUSB_MEDIATEK |
588 BTUSB_WIDEBAND_SPEECH |
589 BTUSB_VALID_LE_STATES },
590 { USB_DEVICE(0x0e8d, 0x0608), .driver_info = BTUSB_MEDIATEK |
591 BTUSB_WIDEBAND_SPEECH |
592 BTUSB_VALID_LE_STATES },
593
594 /* MediaTek MT7922A Bluetooth devices */
595 { USB_DEVICE(0x0489, 0xe0d8), .driver_info = BTUSB_MEDIATEK |
596 BTUSB_WIDEBAND_SPEECH |
597 BTUSB_VALID_LE_STATES },
598 { USB_DEVICE(0x0489, 0xe0d9), .driver_info = BTUSB_MEDIATEK |
599 BTUSB_WIDEBAND_SPEECH |
600 BTUSB_VALID_LE_STATES },
601 { USB_DEVICE(0x13d3, 0x3568), .driver_info = BTUSB_MEDIATEK |
602 BTUSB_WIDEBAND_SPEECH |
603 BTUSB_VALID_LE_STATES },
604 { USB_DEVICE(0x0489, 0xe0e2), .driver_info = BTUSB_MEDIATEK |
605 BTUSB_WIDEBAND_SPEECH |
606 BTUSB_VALID_LE_STATES },
607 { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK |
608 BTUSB_WIDEBAND_SPEECH |
609 BTUSB_VALID_LE_STATES },
610
611 /* Additional Realtek 8723AE Bluetooth devices */
612 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
613 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
614
615 /* Additional Realtek 8723BE Bluetooth devices */
616 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
617 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
618 { USB_DEVICE(0x04f2, 0xb49f), .driver_info = BTUSB_REALTEK },
619 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
620 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
621 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
622 { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK },
623
624 /* Additional Realtek 8723BU Bluetooth devices */
625 { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK },
626
627 /* Additional Realtek 8723DE Bluetooth devices */
628 { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK },
629 { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK },
630
631 /* Additional Realtek 8761BUV Bluetooth devices */
632 { USB_DEVICE(0x2357, 0x0604), .driver_info = BTUSB_REALTEK |
633 BTUSB_WIDEBAND_SPEECH },
634 { USB_DEVICE(0x0b05, 0x190e), .driver_info = BTUSB_REALTEK |
635 BTUSB_WIDEBAND_SPEECH },
636 { USB_DEVICE(0x2550, 0x8761), .driver_info = BTUSB_REALTEK |
637 BTUSB_WIDEBAND_SPEECH },
638 { USB_DEVICE(0x0bda, 0x8771), .driver_info = BTUSB_REALTEK |
639 BTUSB_WIDEBAND_SPEECH },
640 { USB_DEVICE(0x7392, 0xc611), .driver_info = BTUSB_REALTEK |
641 BTUSB_WIDEBAND_SPEECH },
642 { USB_DEVICE(0x2b89, 0x8761), .driver_info = BTUSB_REALTEK |
643 BTUSB_WIDEBAND_SPEECH },
644
645 /* Additional Realtek 8821AE Bluetooth devices */
646 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
647 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
648 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
649 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
650 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
651
652 /* Additional Realtek 8822BE Bluetooth devices */
653 { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK },
654 { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK },
655
656 /* Additional Realtek 8822CE Bluetooth devices */
657 { USB_DEVICE(0x04ca, 0x4005), .driver_info = BTUSB_REALTEK |
658 BTUSB_WIDEBAND_SPEECH },
659 { USB_DEVICE(0x04c5, 0x161f), .driver_info = BTUSB_REALTEK |
660 BTUSB_WIDEBAND_SPEECH },
661 { USB_DEVICE(0x0b05, 0x18ef), .driver_info = BTUSB_REALTEK |
662 BTUSB_WIDEBAND_SPEECH },
663 { USB_DEVICE(0x13d3, 0x3548), .driver_info = BTUSB_REALTEK |
664 BTUSB_WIDEBAND_SPEECH },
665 { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK |
666 BTUSB_WIDEBAND_SPEECH },
667 { USB_DEVICE(0x13d3, 0x3553), .driver_info = BTUSB_REALTEK |
668 BTUSB_WIDEBAND_SPEECH },
669 { USB_DEVICE(0x13d3, 0x3555), .driver_info = BTUSB_REALTEK |
670 BTUSB_WIDEBAND_SPEECH },
671 { USB_DEVICE(0x2ff8, 0x3051), .driver_info = BTUSB_REALTEK |
672 BTUSB_WIDEBAND_SPEECH },
673 { USB_DEVICE(0x1358, 0xc123), .driver_info = BTUSB_REALTEK |
674 BTUSB_WIDEBAND_SPEECH },
675 { USB_DEVICE(0x0bda, 0xc123), .driver_info = BTUSB_REALTEK |
676 BTUSB_WIDEBAND_SPEECH },
677 { USB_DEVICE(0x0cb5, 0xc547), .driver_info = BTUSB_REALTEK |
678 BTUSB_WIDEBAND_SPEECH },
679
680 /* Silicon Wave based devices */
681 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE },
682
683 { } /* Terminating entry */
684};
685
686/* The Bluetooth USB module build into some devices needs to be reset on resume,
687 * this is a problem with the platform (likely shutting off all power) not with
688 * the module itself. So we use a DMI list to match known broken platforms.
689 */
690static const struct dmi_system_id btusb_needs_reset_resume_table[] = {
691 {
692 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */
693 .matches = {
694 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
695 DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"),
696 },
697 },
698 {
699 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */
700 .matches = {
701 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
702 DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"),
703 },
704 },
705 {
706 /* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */
707 .matches = {
708 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
709 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"),
710 },
711 },
712 {}
713};
714
715#define BTUSB_MAX_ISOC_FRAMES 10
716
717#define BTUSB_INTR_RUNNING 0
718#define BTUSB_BULK_RUNNING 1
719#define BTUSB_ISOC_RUNNING 2
720#define BTUSB_SUSPENDING 3
721#define BTUSB_DID_ISO_RESUME 4
722#define BTUSB_BOOTLOADER 5
723#define BTUSB_DOWNLOADING 6
724#define BTUSB_FIRMWARE_LOADED 7
725#define BTUSB_FIRMWARE_FAILED 8
726#define BTUSB_BOOTING 9
727#define BTUSB_DIAG_RUNNING 10
728#define BTUSB_OOB_WAKE_ENABLED 11
729#define BTUSB_HW_RESET_ACTIVE 12
730#define BTUSB_TX_WAIT_VND_EVT 13
731#define BTUSB_WAKEUP_AUTOSUSPEND 14
732#define BTUSB_USE_ALT3_FOR_WBS 15
733#define BTUSB_ALT6_CONTINUOUS_TX 16
734
735struct btusb_data {
736 struct hci_dev *hdev;
737 struct usb_device *udev;
738 struct usb_interface *intf;
739 struct usb_interface *isoc;
740 struct usb_interface *diag;
741 unsigned isoc_ifnum;
742
743 unsigned long flags;
744
745 bool poll_sync;
746 int intr_interval;
747 struct work_struct work;
748 struct work_struct waker;
749 struct delayed_work rx_work;
750
751 struct sk_buff_head acl_q;
752
753 struct usb_anchor deferred;
754 struct usb_anchor tx_anchor;
755 int tx_in_flight;
756 spinlock_t txlock;
757
758 struct usb_anchor intr_anchor;
759 struct usb_anchor bulk_anchor;
760 struct usb_anchor isoc_anchor;
761 struct usb_anchor diag_anchor;
762 struct usb_anchor ctrl_anchor;
763 spinlock_t rxlock;
764
765 struct sk_buff *evt_skb;
766 struct sk_buff *acl_skb;
767 struct sk_buff *sco_skb;
768
769 struct usb_endpoint_descriptor *intr_ep;
770 struct usb_endpoint_descriptor *bulk_tx_ep;
771 struct usb_endpoint_descriptor *bulk_rx_ep;
772 struct usb_endpoint_descriptor *isoc_tx_ep;
773 struct usb_endpoint_descriptor *isoc_rx_ep;
774 struct usb_endpoint_descriptor *diag_tx_ep;
775 struct usb_endpoint_descriptor *diag_rx_ep;
776
777 struct gpio_desc *reset_gpio;
778
779 __u8 cmdreq_type;
780 __u8 cmdreq;
781
782 unsigned int sco_num;
783 unsigned int air_mode;
784 bool usb_alt6_packet_flow;
785 int isoc_altsetting;
786 int suspend_count;
787
788 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
789 int (*recv_acl)(struct hci_dev *hdev, struct sk_buff *skb);
790 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
791
792 int (*setup_on_usb)(struct hci_dev *hdev);
793
794 int oob_wake_irq; /* irq for out-of-band wake-on-bt */
795 unsigned cmd_timeout_cnt;
796};
797
798static void btusb_reset(struct hci_dev *hdev)
799{
800 struct btusb_data *data;
801 int err;
802
803 if (hdev->reset) {
804 hdev->reset(hdev);
805 return;
806 }
807
808 data = hci_get_drvdata(hdev);
809 /* This is not an unbalanced PM reference since the device will reset */
810 err = usb_autopm_get_interface(data->intf);
811 if (err) {
812 bt_dev_err(hdev, "Failed usb_autopm_get_interface: %d", err);
813 return;
814 }
815
816 bt_dev_err(hdev, "Resetting usb device.");
817 usb_queue_reset_device(data->intf);
818}
819
820static void btusb_intel_cmd_timeout(struct hci_dev *hdev)
821{
822 struct btusb_data *data = hci_get_drvdata(hdev);
823 struct gpio_desc *reset_gpio = data->reset_gpio;
824
825 if (++data->cmd_timeout_cnt < 5)
826 return;
827
828 if (!reset_gpio) {
829 btusb_reset(hdev);
830 return;
831 }
832
833 /*
834 * Toggle the hard reset line if the platform provides one. The reset
835 * is going to yank the device off the USB and then replug. So doing
836 * once is enough. The cleanup is handled correctly on the way out
837 * (standard USB disconnect), and the new device is detected cleanly
838 * and bound to the driver again like it should be.
839 */
840 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
841 bt_dev_err(hdev, "last reset failed? Not resetting again");
842 return;
843 }
844
845 bt_dev_err(hdev, "Initiating HW reset via gpio");
846 gpiod_set_value_cansleep(reset_gpio, 1);
847 msleep(100);
848 gpiod_set_value_cansleep(reset_gpio, 0);
849}
850
851static void btusb_rtl_cmd_timeout(struct hci_dev *hdev)
852{
853 struct btusb_data *data = hci_get_drvdata(hdev);
854 struct gpio_desc *reset_gpio = data->reset_gpio;
855
856 if (++data->cmd_timeout_cnt < 5)
857 return;
858
859 if (!reset_gpio) {
860 btusb_reset(hdev);
861 return;
862 }
863
864 /* Toggle the hard reset line. The Realtek device is going to
865 * yank itself off the USB and then replug. The cleanup is handled
866 * correctly on the way out (standard USB disconnect), and the new
867 * device is detected cleanly and bound to the driver again like
868 * it should be.
869 */
870 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
871 bt_dev_err(hdev, "last reset failed? Not resetting again");
872 return;
873 }
874
875 bt_dev_err(hdev, "Reset Realtek device via gpio");
876 gpiod_set_value_cansleep(reset_gpio, 1);
877 msleep(200);
878 gpiod_set_value_cansleep(reset_gpio, 0);
879}
880
881static void btusb_qca_cmd_timeout(struct hci_dev *hdev)
882{
883 struct btusb_data *data = hci_get_drvdata(hdev);
884 struct gpio_desc *reset_gpio = data->reset_gpio;
885
886 if (++data->cmd_timeout_cnt < 5)
887 return;
888
889 if (reset_gpio) {
890 bt_dev_err(hdev, "Reset qca device via bt_en gpio");
891
892 /* Toggle the hard reset line. The qca bt device is going to
893 * yank itself off the USB and then replug. The cleanup is handled
894 * correctly on the way out (standard USB disconnect), and the new
895 * device is detected cleanly and bound to the driver again like
896 * it should be.
897 */
898 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
899 bt_dev_err(hdev, "last reset failed? Not resetting again");
900 return;
901 }
902
903 gpiod_set_value_cansleep(reset_gpio, 0);
904 msleep(200);
905 gpiod_set_value_cansleep(reset_gpio, 1);
906
907 return;
908 }
909
910 btusb_reset(hdev);
911}
912
913static inline void btusb_free_frags(struct btusb_data *data)
914{
915 unsigned long flags;
916
917 spin_lock_irqsave(&data->rxlock, flags);
918
919 dev_kfree_skb_irq(data->evt_skb);
920 data->evt_skb = NULL;
921
922 dev_kfree_skb_irq(data->acl_skb);
923 data->acl_skb = NULL;
924
925 dev_kfree_skb_irq(data->sco_skb);
926 data->sco_skb = NULL;
927
928 spin_unlock_irqrestore(&data->rxlock, flags);
929}
930
931static int btusb_recv_event(struct btusb_data *data, struct sk_buff *skb)
932{
933 if (data->intr_interval) {
934 /* Trigger dequeue immediatelly if an event is received */
935 schedule_delayed_work(&data->rx_work, 0);
936 }
937
938 return data->recv_event(data->hdev, skb);
939}
940
941static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
942{
943 struct sk_buff *skb;
944 unsigned long flags;
945 int err = 0;
946
947 spin_lock_irqsave(&data->rxlock, flags);
948 skb = data->evt_skb;
949
950 while (count) {
951 int len;
952
953 if (!skb) {
954 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
955 if (!skb) {
956 err = -ENOMEM;
957 break;
958 }
959
960 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
961 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE;
962 }
963
964 len = min_t(uint, hci_skb_expect(skb), count);
965 skb_put_data(skb, buffer, len);
966
967 count -= len;
968 buffer += len;
969 hci_skb_expect(skb) -= len;
970
971 if (skb->len == HCI_EVENT_HDR_SIZE) {
972 /* Complete event header */
973 hci_skb_expect(skb) = hci_event_hdr(skb)->plen;
974
975 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
976 kfree_skb(skb);
977 skb = NULL;
978
979 err = -EILSEQ;
980 break;
981 }
982 }
983
984 if (!hci_skb_expect(skb)) {
985 /* Complete frame */
986 btusb_recv_event(data, skb);
987 skb = NULL;
988 }
989 }
990
991 data->evt_skb = skb;
992 spin_unlock_irqrestore(&data->rxlock, flags);
993
994 return err;
995}
996
997static int btusb_recv_acl(struct btusb_data *data, struct sk_buff *skb)
998{
999 /* Only queue ACL packet if intr_interval is set as it means
1000 * force_poll_sync has been enabled.
1001 */
1002 if (!data->intr_interval)
1003 return data->recv_acl(data->hdev, skb);
1004
1005 skb_queue_tail(&data->acl_q, skb);
1006 schedule_delayed_work(&data->rx_work, data->intr_interval);
1007
1008 return 0;
1009}
1010
1011static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
1012{
1013 struct sk_buff *skb;
1014 unsigned long flags;
1015 int err = 0;
1016
1017 spin_lock_irqsave(&data->rxlock, flags);
1018 skb = data->acl_skb;
1019
1020 while (count) {
1021 int len;
1022
1023 if (!skb) {
1024 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
1025 if (!skb) {
1026 err = -ENOMEM;
1027 break;
1028 }
1029
1030 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT;
1031 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE;
1032 }
1033
1034 len = min_t(uint, hci_skb_expect(skb), count);
1035 skb_put_data(skb, buffer, len);
1036
1037 count -= len;
1038 buffer += len;
1039 hci_skb_expect(skb) -= len;
1040
1041 if (skb->len == HCI_ACL_HDR_SIZE) {
1042 __u16 handle = __le16_to_cpu(hci_acl_hdr(skb)->handle);
1043 __le16 dlen = hci_acl_hdr(skb)->dlen;
1044 __u8 type;
1045
1046 /* Complete ACL header */
1047 hci_skb_expect(skb) = __le16_to_cpu(dlen);
1048
1049 /* Detect if ISO packet has been sent over bulk */
1050 if (hci_conn_num(data->hdev, ISO_LINK)) {
1051 type = hci_conn_lookup_type(data->hdev,
1052 hci_handle(handle));
1053 if (type == ISO_LINK)
1054 hci_skb_pkt_type(skb) = HCI_ISODATA_PKT;
1055 }
1056
1057 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
1058 kfree_skb(skb);
1059 skb = NULL;
1060
1061 err = -EILSEQ;
1062 break;
1063 }
1064 }
1065
1066 if (!hci_skb_expect(skb)) {
1067 /* Complete frame */
1068 btusb_recv_acl(data, skb);
1069 skb = NULL;
1070 }
1071 }
1072
1073 data->acl_skb = skb;
1074 spin_unlock_irqrestore(&data->rxlock, flags);
1075
1076 return err;
1077}
1078
1079static bool btusb_validate_sco_handle(struct hci_dev *hdev,
1080 struct hci_sco_hdr *hdr)
1081{
1082 __u16 handle;
1083
1084 if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL))
1085 // Can't validate, userspace controls everything.
1086 return true;
1087
1088 /*
1089 * USB isochronous transfers are not designed to be reliable and may
1090 * lose fragments. When this happens, the next first fragment
1091 * encountered might actually be a continuation fragment.
1092 * Validate the handle to detect it and drop it, or else the upper
1093 * layer will get garbage for a while.
1094 */
1095
1096 handle = hci_handle(__le16_to_cpu(hdr->handle));
1097
1098 switch (hci_conn_lookup_type(hdev, handle)) {
1099 case SCO_LINK:
1100 case ESCO_LINK:
1101 return true;
1102 default:
1103 return false;
1104 }
1105}
1106
1107static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
1108{
1109 struct sk_buff *skb;
1110 unsigned long flags;
1111 int err = 0;
1112
1113 spin_lock_irqsave(&data->rxlock, flags);
1114 skb = data->sco_skb;
1115
1116 while (count) {
1117 int len;
1118
1119 if (!skb) {
1120 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
1121 if (!skb) {
1122 err = -ENOMEM;
1123 break;
1124 }
1125
1126 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT;
1127 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE;
1128 }
1129
1130 len = min_t(uint, hci_skb_expect(skb), count);
1131 skb_put_data(skb, buffer, len);
1132
1133 count -= len;
1134 buffer += len;
1135 hci_skb_expect(skb) -= len;
1136
1137 if (skb->len == HCI_SCO_HDR_SIZE) {
1138 /* Complete SCO header */
1139 struct hci_sco_hdr *hdr = hci_sco_hdr(skb);
1140
1141 hci_skb_expect(skb) = hdr->dlen;
1142
1143 if (skb_tailroom(skb) < hci_skb_expect(skb) ||
1144 !btusb_validate_sco_handle(data->hdev, hdr)) {
1145 kfree_skb(skb);
1146 skb = NULL;
1147
1148 err = -EILSEQ;
1149 break;
1150 }
1151 }
1152
1153 if (!hci_skb_expect(skb)) {
1154 /* Complete frame */
1155 hci_recv_frame(data->hdev, skb);
1156 skb = NULL;
1157 }
1158 }
1159
1160 data->sco_skb = skb;
1161 spin_unlock_irqrestore(&data->rxlock, flags);
1162
1163 return err;
1164}
1165
1166static void btusb_intr_complete(struct urb *urb)
1167{
1168 struct hci_dev *hdev = urb->context;
1169 struct btusb_data *data = hci_get_drvdata(hdev);
1170 int err;
1171
1172 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1173 urb->actual_length);
1174
1175 if (!test_bit(HCI_RUNNING, &hdev->flags))
1176 return;
1177
1178 if (urb->status == 0) {
1179 hdev->stat.byte_rx += urb->actual_length;
1180
1181 if (btusb_recv_intr(data, urb->transfer_buffer,
1182 urb->actual_length) < 0) {
1183 bt_dev_err(hdev, "corrupted event packet");
1184 hdev->stat.err_rx++;
1185 }
1186 } else if (urb->status == -ENOENT) {
1187 /* Avoid suspend failed when usb_kill_urb */
1188 return;
1189 }
1190
1191 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
1192 return;
1193
1194 usb_mark_last_busy(data->udev);
1195 usb_anchor_urb(urb, &data->intr_anchor);
1196
1197 err = usb_submit_urb(urb, GFP_ATOMIC);
1198 if (err < 0) {
1199 /* -EPERM: urb is being killed;
1200 * -ENODEV: device got disconnected
1201 */
1202 if (err != -EPERM && err != -ENODEV)
1203 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1204 urb, -err);
1205 if (err != -EPERM)
1206 hci_cmd_sync_cancel(hdev, -err);
1207 usb_unanchor_urb(urb);
1208 }
1209}
1210
1211static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
1212{
1213 struct btusb_data *data = hci_get_drvdata(hdev);
1214 struct urb *urb;
1215 unsigned char *buf;
1216 unsigned int pipe;
1217 int err, size;
1218
1219 BT_DBG("%s", hdev->name);
1220
1221 if (!data->intr_ep)
1222 return -ENODEV;
1223
1224 urb = usb_alloc_urb(0, mem_flags);
1225 if (!urb)
1226 return -ENOMEM;
1227
1228 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
1229
1230 buf = kmalloc(size, mem_flags);
1231 if (!buf) {
1232 usb_free_urb(urb);
1233 return -ENOMEM;
1234 }
1235
1236 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
1237
1238 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
1239 btusb_intr_complete, hdev, data->intr_ep->bInterval);
1240
1241 urb->transfer_flags |= URB_FREE_BUFFER;
1242
1243 usb_anchor_urb(urb, &data->intr_anchor);
1244
1245 err = usb_submit_urb(urb, mem_flags);
1246 if (err < 0) {
1247 if (err != -EPERM && err != -ENODEV)
1248 bt_dev_err(hdev, "urb %p submission failed (%d)",
1249 urb, -err);
1250 if (err != -EPERM)
1251 hci_cmd_sync_cancel(hdev, -err);
1252 usb_unanchor_urb(urb);
1253 }
1254
1255 /* Only initialize intr_interval if URB poll sync is enabled */
1256 if (!data->poll_sync)
1257 goto done;
1258
1259 /* The units are frames (milliseconds) for full and low speed devices,
1260 * and microframes (1/8 millisecond) for highspeed and SuperSpeed
1261 * devices.
1262 *
1263 * This is done once on open/resume so it shouldn't change even if
1264 * force_poll_sync changes.
1265 */
1266 switch (urb->dev->speed) {
1267 case USB_SPEED_SUPER_PLUS:
1268 case USB_SPEED_SUPER: /* units are 125us */
1269 data->intr_interval = usecs_to_jiffies(urb->interval * 125);
1270 break;
1271 default:
1272 data->intr_interval = msecs_to_jiffies(urb->interval);
1273 break;
1274 }
1275
1276done:
1277 usb_free_urb(urb);
1278
1279 return err;
1280}
1281
1282static void btusb_bulk_complete(struct urb *urb)
1283{
1284 struct hci_dev *hdev = urb->context;
1285 struct btusb_data *data = hci_get_drvdata(hdev);
1286 int err;
1287
1288 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1289 urb->actual_length);
1290
1291 if (!test_bit(HCI_RUNNING, &hdev->flags))
1292 return;
1293
1294 if (urb->status == 0) {
1295 hdev->stat.byte_rx += urb->actual_length;
1296
1297 if (data->recv_bulk(data, urb->transfer_buffer,
1298 urb->actual_length) < 0) {
1299 bt_dev_err(hdev, "corrupted ACL packet");
1300 hdev->stat.err_rx++;
1301 }
1302 } else if (urb->status == -ENOENT) {
1303 /* Avoid suspend failed when usb_kill_urb */
1304 return;
1305 }
1306
1307 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
1308 return;
1309
1310 usb_anchor_urb(urb, &data->bulk_anchor);
1311 usb_mark_last_busy(data->udev);
1312
1313 err = usb_submit_urb(urb, GFP_ATOMIC);
1314 if (err < 0) {
1315 /* -EPERM: urb is being killed;
1316 * -ENODEV: device got disconnected
1317 */
1318 if (err != -EPERM && err != -ENODEV)
1319 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1320 urb, -err);
1321 usb_unanchor_urb(urb);
1322 }
1323}
1324
1325static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
1326{
1327 struct btusb_data *data = hci_get_drvdata(hdev);
1328 struct urb *urb;
1329 unsigned char *buf;
1330 unsigned int pipe;
1331 int err, size = HCI_MAX_FRAME_SIZE;
1332
1333 BT_DBG("%s", hdev->name);
1334
1335 if (!data->bulk_rx_ep)
1336 return -ENODEV;
1337
1338 urb = usb_alloc_urb(0, mem_flags);
1339 if (!urb)
1340 return -ENOMEM;
1341
1342 buf = kmalloc(size, mem_flags);
1343 if (!buf) {
1344 usb_free_urb(urb);
1345 return -ENOMEM;
1346 }
1347
1348 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
1349
1350 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1351 btusb_bulk_complete, hdev);
1352
1353 urb->transfer_flags |= URB_FREE_BUFFER;
1354
1355 usb_mark_last_busy(data->udev);
1356 usb_anchor_urb(urb, &data->bulk_anchor);
1357
1358 err = usb_submit_urb(urb, mem_flags);
1359 if (err < 0) {
1360 if (err != -EPERM && err != -ENODEV)
1361 bt_dev_err(hdev, "urb %p submission failed (%d)",
1362 urb, -err);
1363 usb_unanchor_urb(urb);
1364 }
1365
1366 usb_free_urb(urb);
1367
1368 return err;
1369}
1370
1371static void btusb_isoc_complete(struct urb *urb)
1372{
1373 struct hci_dev *hdev = urb->context;
1374 struct btusb_data *data = hci_get_drvdata(hdev);
1375 int i, err;
1376
1377 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1378 urb->actual_length);
1379
1380 if (!test_bit(HCI_RUNNING, &hdev->flags))
1381 return;
1382
1383 if (urb->status == 0) {
1384 for (i = 0; i < urb->number_of_packets; i++) {
1385 unsigned int offset = urb->iso_frame_desc[i].offset;
1386 unsigned int length = urb->iso_frame_desc[i].actual_length;
1387
1388 if (urb->iso_frame_desc[i].status)
1389 continue;
1390
1391 hdev->stat.byte_rx += length;
1392
1393 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
1394 length) < 0) {
1395 bt_dev_err(hdev, "corrupted SCO packet");
1396 hdev->stat.err_rx++;
1397 }
1398 }
1399 } else if (urb->status == -ENOENT) {
1400 /* Avoid suspend failed when usb_kill_urb */
1401 return;
1402 }
1403
1404 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
1405 return;
1406
1407 usb_anchor_urb(urb, &data->isoc_anchor);
1408
1409 err = usb_submit_urb(urb, GFP_ATOMIC);
1410 if (err < 0) {
1411 /* -EPERM: urb is being killed;
1412 * -ENODEV: device got disconnected
1413 */
1414 if (err != -EPERM && err != -ENODEV)
1415 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1416 urb, -err);
1417 usb_unanchor_urb(urb);
1418 }
1419}
1420
1421static inline void __fill_isoc_descriptor_msbc(struct urb *urb, int len,
1422 int mtu, struct btusb_data *data)
1423{
1424 int i = 0, offset = 0;
1425 unsigned int interval;
1426
1427 BT_DBG("len %d mtu %d", len, mtu);
1428
1429 /* For mSBC ALT 6 settings some chips need to transmit the data
1430 * continuously without the zero length of USB packets.
1431 */
1432 if (test_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags))
1433 goto ignore_usb_alt6_packet_flow;
1434
1435 /* For mSBC ALT 6 setting the host will send the packet at continuous
1436 * flow. As per core spec 5, vol 4, part B, table 2.1. For ALT setting
1437 * 6 the HCI PACKET INTERVAL should be 7.5ms for every usb packets.
1438 * To maintain the rate we send 63bytes of usb packets alternatively for
1439 * 7ms and 8ms to maintain the rate as 7.5ms.
1440 */
1441 if (data->usb_alt6_packet_flow) {
1442 interval = 7;
1443 data->usb_alt6_packet_flow = false;
1444 } else {
1445 interval = 6;
1446 data->usb_alt6_packet_flow = true;
1447 }
1448
1449 for (i = 0; i < interval; i++) {
1450 urb->iso_frame_desc[i].offset = offset;
1451 urb->iso_frame_desc[i].length = offset;
1452 }
1453
1454ignore_usb_alt6_packet_flow:
1455 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1456 urb->iso_frame_desc[i].offset = offset;
1457 urb->iso_frame_desc[i].length = len;
1458 i++;
1459 }
1460
1461 urb->number_of_packets = i;
1462}
1463
1464static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
1465{
1466 int i, offset = 0;
1467
1468 BT_DBG("len %d mtu %d", len, mtu);
1469
1470 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
1471 i++, offset += mtu, len -= mtu) {
1472 urb->iso_frame_desc[i].offset = offset;
1473 urb->iso_frame_desc[i].length = mtu;
1474 }
1475
1476 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1477 urb->iso_frame_desc[i].offset = offset;
1478 urb->iso_frame_desc[i].length = len;
1479 i++;
1480 }
1481
1482 urb->number_of_packets = i;
1483}
1484
1485static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
1486{
1487 struct btusb_data *data = hci_get_drvdata(hdev);
1488 struct urb *urb;
1489 unsigned char *buf;
1490 unsigned int pipe;
1491 int err, size;
1492
1493 BT_DBG("%s", hdev->name);
1494
1495 if (!data->isoc_rx_ep)
1496 return -ENODEV;
1497
1498 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
1499 if (!urb)
1500 return -ENOMEM;
1501
1502 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
1503 BTUSB_MAX_ISOC_FRAMES;
1504
1505 buf = kmalloc(size, mem_flags);
1506 if (!buf) {
1507 usb_free_urb(urb);
1508 return -ENOMEM;
1509 }
1510
1511 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
1512
1513 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
1514 hdev, data->isoc_rx_ep->bInterval);
1515
1516 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
1517
1518 __fill_isoc_descriptor(urb, size,
1519 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
1520
1521 usb_anchor_urb(urb, &data->isoc_anchor);
1522
1523 err = usb_submit_urb(urb, mem_flags);
1524 if (err < 0) {
1525 if (err != -EPERM && err != -ENODEV)
1526 bt_dev_err(hdev, "urb %p submission failed (%d)",
1527 urb, -err);
1528 usb_unanchor_urb(urb);
1529 }
1530
1531 usb_free_urb(urb);
1532
1533 return err;
1534}
1535
1536static void btusb_diag_complete(struct urb *urb)
1537{
1538 struct hci_dev *hdev = urb->context;
1539 struct btusb_data *data = hci_get_drvdata(hdev);
1540 int err;
1541
1542 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1543 urb->actual_length);
1544
1545 if (urb->status == 0) {
1546 struct sk_buff *skb;
1547
1548 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC);
1549 if (skb) {
1550 skb_put_data(skb, urb->transfer_buffer,
1551 urb->actual_length);
1552 hci_recv_diag(hdev, skb);
1553 }
1554 } else if (urb->status == -ENOENT) {
1555 /* Avoid suspend failed when usb_kill_urb */
1556 return;
1557 }
1558
1559 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags))
1560 return;
1561
1562 usb_anchor_urb(urb, &data->diag_anchor);
1563 usb_mark_last_busy(data->udev);
1564
1565 err = usb_submit_urb(urb, GFP_ATOMIC);
1566 if (err < 0) {
1567 /* -EPERM: urb is being killed;
1568 * -ENODEV: device got disconnected
1569 */
1570 if (err != -EPERM && err != -ENODEV)
1571 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1572 urb, -err);
1573 usb_unanchor_urb(urb);
1574 }
1575}
1576
1577static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags)
1578{
1579 struct btusb_data *data = hci_get_drvdata(hdev);
1580 struct urb *urb;
1581 unsigned char *buf;
1582 unsigned int pipe;
1583 int err, size = HCI_MAX_FRAME_SIZE;
1584
1585 BT_DBG("%s", hdev->name);
1586
1587 if (!data->diag_rx_ep)
1588 return -ENODEV;
1589
1590 urb = usb_alloc_urb(0, mem_flags);
1591 if (!urb)
1592 return -ENOMEM;
1593
1594 buf = kmalloc(size, mem_flags);
1595 if (!buf) {
1596 usb_free_urb(urb);
1597 return -ENOMEM;
1598 }
1599
1600 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress);
1601
1602 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1603 btusb_diag_complete, hdev);
1604
1605 urb->transfer_flags |= URB_FREE_BUFFER;
1606
1607 usb_mark_last_busy(data->udev);
1608 usb_anchor_urb(urb, &data->diag_anchor);
1609
1610 err = usb_submit_urb(urb, mem_flags);
1611 if (err < 0) {
1612 if (err != -EPERM && err != -ENODEV)
1613 bt_dev_err(hdev, "urb %p submission failed (%d)",
1614 urb, -err);
1615 usb_unanchor_urb(urb);
1616 }
1617
1618 usb_free_urb(urb);
1619
1620 return err;
1621}
1622
1623static void btusb_tx_complete(struct urb *urb)
1624{
1625 struct sk_buff *skb = urb->context;
1626 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1627 struct btusb_data *data = hci_get_drvdata(hdev);
1628 unsigned long flags;
1629
1630 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1631 urb->actual_length);
1632
1633 if (!test_bit(HCI_RUNNING, &hdev->flags))
1634 goto done;
1635
1636 if (!urb->status) {
1637 hdev->stat.byte_tx += urb->transfer_buffer_length;
1638 } else {
1639 if (hci_skb_pkt_type(skb) == HCI_COMMAND_PKT)
1640 hci_cmd_sync_cancel(hdev, -urb->status);
1641 hdev->stat.err_tx++;
1642 }
1643
1644done:
1645 spin_lock_irqsave(&data->txlock, flags);
1646 data->tx_in_flight--;
1647 spin_unlock_irqrestore(&data->txlock, flags);
1648
1649 kfree(urb->setup_packet);
1650
1651 kfree_skb(skb);
1652}
1653
1654static void btusb_isoc_tx_complete(struct urb *urb)
1655{
1656 struct sk_buff *skb = urb->context;
1657 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1658
1659 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1660 urb->actual_length);
1661
1662 if (!test_bit(HCI_RUNNING, &hdev->flags))
1663 goto done;
1664
1665 if (!urb->status)
1666 hdev->stat.byte_tx += urb->transfer_buffer_length;
1667 else
1668 hdev->stat.err_tx++;
1669
1670done:
1671 kfree(urb->setup_packet);
1672
1673 kfree_skb(skb);
1674}
1675
1676static int btusb_open(struct hci_dev *hdev)
1677{
1678 struct btusb_data *data = hci_get_drvdata(hdev);
1679 int err;
1680
1681 BT_DBG("%s", hdev->name);
1682
1683 err = usb_autopm_get_interface(data->intf);
1684 if (err < 0)
1685 return err;
1686
1687 /* Patching USB firmware files prior to starting any URBs of HCI path
1688 * It is more safe to use USB bulk channel for downloading USB patch
1689 */
1690 if (data->setup_on_usb) {
1691 err = data->setup_on_usb(hdev);
1692 if (err < 0)
1693 goto setup_fail;
1694 }
1695
1696 data->intf->needs_remote_wakeup = 1;
1697
1698 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
1699 goto done;
1700
1701 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
1702 if (err < 0)
1703 goto failed;
1704
1705 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1706 if (err < 0) {
1707 usb_kill_anchored_urbs(&data->intr_anchor);
1708 goto failed;
1709 }
1710
1711 set_bit(BTUSB_BULK_RUNNING, &data->flags);
1712 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1713
1714 if (data->diag) {
1715 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL))
1716 set_bit(BTUSB_DIAG_RUNNING, &data->flags);
1717 }
1718
1719done:
1720 usb_autopm_put_interface(data->intf);
1721 return 0;
1722
1723failed:
1724 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1725setup_fail:
1726 usb_autopm_put_interface(data->intf);
1727 return err;
1728}
1729
1730static void btusb_stop_traffic(struct btusb_data *data)
1731{
1732 usb_kill_anchored_urbs(&data->intr_anchor);
1733 usb_kill_anchored_urbs(&data->bulk_anchor);
1734 usb_kill_anchored_urbs(&data->isoc_anchor);
1735 usb_kill_anchored_urbs(&data->diag_anchor);
1736 usb_kill_anchored_urbs(&data->ctrl_anchor);
1737}
1738
1739static int btusb_close(struct hci_dev *hdev)
1740{
1741 struct btusb_data *data = hci_get_drvdata(hdev);
1742 int err;
1743
1744 BT_DBG("%s", hdev->name);
1745
1746 cancel_delayed_work(&data->rx_work);
1747 cancel_work_sync(&data->work);
1748 cancel_work_sync(&data->waker);
1749
1750 skb_queue_purge(&data->acl_q);
1751
1752 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1753 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1754 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1755 clear_bit(BTUSB_DIAG_RUNNING, &data->flags);
1756
1757 btusb_stop_traffic(data);
1758 btusb_free_frags(data);
1759
1760 err = usb_autopm_get_interface(data->intf);
1761 if (err < 0)
1762 goto failed;
1763
1764 data->intf->needs_remote_wakeup = 0;
1765
1766 /* Enable remote wake up for auto-suspend */
1767 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags))
1768 data->intf->needs_remote_wakeup = 1;
1769
1770 usb_autopm_put_interface(data->intf);
1771
1772failed:
1773 usb_scuttle_anchored_urbs(&data->deferred);
1774 return 0;
1775}
1776
1777static int btusb_flush(struct hci_dev *hdev)
1778{
1779 struct btusb_data *data = hci_get_drvdata(hdev);
1780
1781 BT_DBG("%s", hdev->name);
1782
1783 cancel_delayed_work(&data->rx_work);
1784
1785 skb_queue_purge(&data->acl_q);
1786
1787 usb_kill_anchored_urbs(&data->tx_anchor);
1788 btusb_free_frags(data);
1789
1790 return 0;
1791}
1792
1793static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
1794{
1795 struct btusb_data *data = hci_get_drvdata(hdev);
1796 struct usb_ctrlrequest *dr;
1797 struct urb *urb;
1798 unsigned int pipe;
1799
1800 urb = usb_alloc_urb(0, GFP_KERNEL);
1801 if (!urb)
1802 return ERR_PTR(-ENOMEM);
1803
1804 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
1805 if (!dr) {
1806 usb_free_urb(urb);
1807 return ERR_PTR(-ENOMEM);
1808 }
1809
1810 dr->bRequestType = data->cmdreq_type;
1811 dr->bRequest = data->cmdreq;
1812 dr->wIndex = 0;
1813 dr->wValue = 0;
1814 dr->wLength = __cpu_to_le16(skb->len);
1815
1816 pipe = usb_sndctrlpipe(data->udev, 0x00);
1817
1818 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
1819 skb->data, skb->len, btusb_tx_complete, skb);
1820
1821 skb->dev = (void *)hdev;
1822
1823 return urb;
1824}
1825
1826static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
1827{
1828 struct btusb_data *data = hci_get_drvdata(hdev);
1829 struct urb *urb;
1830 unsigned int pipe;
1831
1832 if (!data->bulk_tx_ep)
1833 return ERR_PTR(-ENODEV);
1834
1835 urb = usb_alloc_urb(0, GFP_KERNEL);
1836 if (!urb)
1837 return ERR_PTR(-ENOMEM);
1838
1839 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
1840
1841 usb_fill_bulk_urb(urb, data->udev, pipe,
1842 skb->data, skb->len, btusb_tx_complete, skb);
1843
1844 skb->dev = (void *)hdev;
1845
1846 return urb;
1847}
1848
1849static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
1850{
1851 struct btusb_data *data = hci_get_drvdata(hdev);
1852 struct urb *urb;
1853 unsigned int pipe;
1854
1855 if (!data->isoc_tx_ep)
1856 return ERR_PTR(-ENODEV);
1857
1858 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
1859 if (!urb)
1860 return ERR_PTR(-ENOMEM);
1861
1862 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
1863
1864 usb_fill_int_urb(urb, data->udev, pipe,
1865 skb->data, skb->len, btusb_isoc_tx_complete,
1866 skb, data->isoc_tx_ep->bInterval);
1867
1868 urb->transfer_flags = URB_ISO_ASAP;
1869
1870 if (data->isoc_altsetting == 6)
1871 __fill_isoc_descriptor_msbc(urb, skb->len,
1872 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize),
1873 data);
1874 else
1875 __fill_isoc_descriptor(urb, skb->len,
1876 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
1877 skb->dev = (void *)hdev;
1878
1879 return urb;
1880}
1881
1882static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
1883{
1884 struct btusb_data *data = hci_get_drvdata(hdev);
1885 int err;
1886
1887 usb_anchor_urb(urb, &data->tx_anchor);
1888
1889 err = usb_submit_urb(urb, GFP_KERNEL);
1890 if (err < 0) {
1891 if (err != -EPERM && err != -ENODEV)
1892 bt_dev_err(hdev, "urb %p submission failed (%d)",
1893 urb, -err);
1894 kfree(urb->setup_packet);
1895 usb_unanchor_urb(urb);
1896 } else {
1897 usb_mark_last_busy(data->udev);
1898 }
1899
1900 usb_free_urb(urb);
1901 return err;
1902}
1903
1904static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
1905{
1906 struct btusb_data *data = hci_get_drvdata(hdev);
1907 unsigned long flags;
1908 bool suspending;
1909
1910 spin_lock_irqsave(&data->txlock, flags);
1911 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
1912 if (!suspending)
1913 data->tx_in_flight++;
1914 spin_unlock_irqrestore(&data->txlock, flags);
1915
1916 if (!suspending)
1917 return submit_tx_urb(hdev, urb);
1918
1919 usb_anchor_urb(urb, &data->deferred);
1920 schedule_work(&data->waker);
1921
1922 usb_free_urb(urb);
1923 return 0;
1924}
1925
1926static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
1927{
1928 struct urb *urb;
1929
1930 BT_DBG("%s", hdev->name);
1931
1932 switch (hci_skb_pkt_type(skb)) {
1933 case HCI_COMMAND_PKT:
1934 urb = alloc_ctrl_urb(hdev, skb);
1935 if (IS_ERR(urb))
1936 return PTR_ERR(urb);
1937
1938 hdev->stat.cmd_tx++;
1939 return submit_or_queue_tx_urb(hdev, urb);
1940
1941 case HCI_ACLDATA_PKT:
1942 urb = alloc_bulk_urb(hdev, skb);
1943 if (IS_ERR(urb))
1944 return PTR_ERR(urb);
1945
1946 hdev->stat.acl_tx++;
1947 return submit_or_queue_tx_urb(hdev, urb);
1948
1949 case HCI_SCODATA_PKT:
1950 if (hci_conn_num(hdev, SCO_LINK) < 1)
1951 return -ENODEV;
1952
1953 urb = alloc_isoc_urb(hdev, skb);
1954 if (IS_ERR(urb))
1955 return PTR_ERR(urb);
1956
1957 hdev->stat.sco_tx++;
1958 return submit_tx_urb(hdev, urb);
1959
1960 case HCI_ISODATA_PKT:
1961 urb = alloc_bulk_urb(hdev, skb);
1962 if (IS_ERR(urb))
1963 return PTR_ERR(urb);
1964
1965 return submit_or_queue_tx_urb(hdev, urb);
1966 }
1967
1968 return -EILSEQ;
1969}
1970
1971static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
1972{
1973 struct btusb_data *data = hci_get_drvdata(hdev);
1974
1975 BT_DBG("%s evt %d", hdev->name, evt);
1976
1977 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
1978 data->sco_num = hci_conn_num(hdev, SCO_LINK);
1979 data->air_mode = evt;
1980 schedule_work(&data->work);
1981 }
1982}
1983
1984static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
1985{
1986 struct btusb_data *data = hci_get_drvdata(hdev);
1987 struct usb_interface *intf = data->isoc;
1988 struct usb_endpoint_descriptor *ep_desc;
1989 int i, err;
1990
1991 if (!data->isoc)
1992 return -ENODEV;
1993
1994 err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting);
1995 if (err < 0) {
1996 bt_dev_err(hdev, "setting interface failed (%d)", -err);
1997 return err;
1998 }
1999
2000 data->isoc_altsetting = altsetting;
2001
2002 data->isoc_tx_ep = NULL;
2003 data->isoc_rx_ep = NULL;
2004
2005 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2006 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2007
2008 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
2009 data->isoc_tx_ep = ep_desc;
2010 continue;
2011 }
2012
2013 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
2014 data->isoc_rx_ep = ep_desc;
2015 continue;
2016 }
2017 }
2018
2019 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
2020 bt_dev_err(hdev, "invalid SCO descriptors");
2021 return -ENODEV;
2022 }
2023
2024 return 0;
2025}
2026
2027static int btusb_switch_alt_setting(struct hci_dev *hdev, int new_alts)
2028{
2029 struct btusb_data *data = hci_get_drvdata(hdev);
2030 int err;
2031
2032 if (data->isoc_altsetting != new_alts) {
2033 unsigned long flags;
2034
2035 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2036 usb_kill_anchored_urbs(&data->isoc_anchor);
2037
2038 /* When isochronous alternate setting needs to be
2039 * changed, because SCO connection has been added
2040 * or removed, a packet fragment may be left in the
2041 * reassembling state. This could lead to wrongly
2042 * assembled fragments.
2043 *
2044 * Clear outstanding fragment when selecting a new
2045 * alternate setting.
2046 */
2047 spin_lock_irqsave(&data->rxlock, flags);
2048 kfree_skb(data->sco_skb);
2049 data->sco_skb = NULL;
2050 spin_unlock_irqrestore(&data->rxlock, flags);
2051
2052 err = __set_isoc_interface(hdev, new_alts);
2053 if (err < 0)
2054 return err;
2055 }
2056
2057 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2058 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
2059 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2060 else
2061 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
2062 }
2063
2064 return 0;
2065}
2066
2067static struct usb_host_interface *btusb_find_altsetting(struct btusb_data *data,
2068 int alt)
2069{
2070 struct usb_interface *intf = data->isoc;
2071 int i;
2072
2073 BT_DBG("Looking for Alt no :%d", alt);
2074
2075 if (!intf)
2076 return NULL;
2077
2078 for (i = 0; i < intf->num_altsetting; i++) {
2079 if (intf->altsetting[i].desc.bAlternateSetting == alt)
2080 return &intf->altsetting[i];
2081 }
2082
2083 return NULL;
2084}
2085
2086static void btusb_work(struct work_struct *work)
2087{
2088 struct btusb_data *data = container_of(work, struct btusb_data, work);
2089 struct hci_dev *hdev = data->hdev;
2090 int new_alts = 0;
2091 int err;
2092
2093 if (data->sco_num > 0) {
2094 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
2095 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
2096 if (err < 0) {
2097 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2098 usb_kill_anchored_urbs(&data->isoc_anchor);
2099 return;
2100 }
2101
2102 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
2103 }
2104
2105 if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_CVSD) {
2106 if (hdev->voice_setting & 0x0020) {
2107 static const int alts[3] = { 2, 4, 5 };
2108
2109 new_alts = alts[data->sco_num - 1];
2110 } else {
2111 new_alts = data->sco_num;
2112 }
2113 } else if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_TRANSP) {
2114 /* Bluetooth USB spec recommends alt 6 (63 bytes), but
2115 * many adapters do not support it. Alt 1 appears to
2116 * work for all adapters that do not have alt 6, and
2117 * which work with WBS at all. Some devices prefer
2118 * alt 3 (HCI payload >= 60 Bytes let air packet
2119 * data satisfy 60 bytes), requiring
2120 * MTU >= 3 (packets) * 25 (size) - 3 (headers) = 72
2121 * see also Core spec 5, vol 4, B 2.1.1 & Table 2.1.
2122 */
2123 if (btusb_find_altsetting(data, 6))
2124 new_alts = 6;
2125 else if (btusb_find_altsetting(data, 3) &&
2126 hdev->sco_mtu >= 72 &&
2127 test_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags))
2128 new_alts = 3;
2129 else
2130 new_alts = 1;
2131 }
2132
2133 if (btusb_switch_alt_setting(hdev, new_alts) < 0)
2134 bt_dev_err(hdev, "set USB alt:(%d) failed!", new_alts);
2135 } else {
2136 usb_kill_anchored_urbs(&data->isoc_anchor);
2137
2138 if (test_and_clear_bit(BTUSB_ISOC_RUNNING, &data->flags))
2139 __set_isoc_interface(hdev, 0);
2140
2141 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
2142 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
2143 }
2144}
2145
2146static void btusb_waker(struct work_struct *work)
2147{
2148 struct btusb_data *data = container_of(work, struct btusb_data, waker);
2149 int err;
2150
2151 err = usb_autopm_get_interface(data->intf);
2152 if (err < 0)
2153 return;
2154
2155 usb_autopm_put_interface(data->intf);
2156}
2157
2158static void btusb_rx_work(struct work_struct *work)
2159{
2160 struct btusb_data *data = container_of(work, struct btusb_data,
2161 rx_work.work);
2162 struct sk_buff *skb;
2163
2164 /* Dequeue ACL data received during the interval */
2165 while ((skb = skb_dequeue(&data->acl_q)))
2166 data->recv_acl(data->hdev, skb);
2167}
2168
2169static int btusb_setup_bcm92035(struct hci_dev *hdev)
2170{
2171 struct sk_buff *skb;
2172 u8 val = 0x00;
2173
2174 BT_DBG("%s", hdev->name);
2175
2176 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
2177 if (IS_ERR(skb))
2178 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb));
2179 else
2180 kfree_skb(skb);
2181
2182 return 0;
2183}
2184
2185static int btusb_setup_csr(struct hci_dev *hdev)
2186{
2187 struct btusb_data *data = hci_get_drvdata(hdev);
2188 u16 bcdDevice = le16_to_cpu(data->udev->descriptor.bcdDevice);
2189 struct hci_rp_read_local_version *rp;
2190 struct sk_buff *skb;
2191 bool is_fake = false;
2192 int ret;
2193
2194 BT_DBG("%s", hdev->name);
2195
2196 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
2197 HCI_INIT_TIMEOUT);
2198 if (IS_ERR(skb)) {
2199 int err = PTR_ERR(skb);
2200 bt_dev_err(hdev, "CSR: Local version failed (%d)", err);
2201 return err;
2202 }
2203
2204 rp = skb_pull_data(skb, sizeof(*rp));
2205 if (!rp) {
2206 bt_dev_err(hdev, "CSR: Local version length mismatch");
2207 kfree_skb(skb);
2208 return -EIO;
2209 }
2210
2211 bt_dev_info(hdev, "CSR: Setting up dongle with HCI ver=%u rev=%04x",
2212 rp->hci_ver, le16_to_cpu(rp->hci_rev));
2213
2214 bt_dev_info(hdev, "LMP ver=%u subver=%04x; manufacturer=%u",
2215 rp->lmp_ver, le16_to_cpu(rp->lmp_subver),
2216 le16_to_cpu(rp->manufacturer));
2217
2218 /* Detect a wide host of Chinese controllers that aren't CSR.
2219 *
2220 * Known fake bcdDevices: 0x0100, 0x0134, 0x1915, 0x2520, 0x7558, 0x8891
2221 *
2222 * The main thing they have in common is that these are really popular low-cost
2223 * options that support newer Bluetooth versions but rely on heavy VID/PID
2224 * squatting of this poor old Bluetooth 1.1 device. Even sold as such.
2225 *
2226 * We detect actual CSR devices by checking that the HCI manufacturer code
2227 * is Cambridge Silicon Radio (10) and ensuring that LMP sub-version and
2228 * HCI rev values always match. As they both store the firmware number.
2229 */
2230 if (le16_to_cpu(rp->manufacturer) != 10 ||
2231 le16_to_cpu(rp->hci_rev) != le16_to_cpu(rp->lmp_subver))
2232 is_fake = true;
2233
2234 /* Known legit CSR firmware build numbers and their supported BT versions:
2235 * - 1.1 (0x1) -> 0x0073, 0x020d, 0x033c, 0x034e
2236 * - 1.2 (0x2) -> 0x04d9, 0x0529
2237 * - 2.0 (0x3) -> 0x07a6, 0x07ad, 0x0c5c
2238 * - 2.1 (0x4) -> 0x149c, 0x1735, 0x1899 (0x1899 is a BlueCore4-External)
2239 * - 4.0 (0x6) -> 0x1d86, 0x2031, 0x22bb
2240 *
2241 * e.g. Real CSR dongles with LMP subversion 0x73 are old enough that
2242 * support BT 1.1 only; so it's a dead giveaway when some
2243 * third-party BT 4.0 dongle reuses it.
2244 */
2245 else if (le16_to_cpu(rp->lmp_subver) <= 0x034e &&
2246 rp->hci_ver > BLUETOOTH_VER_1_1)
2247 is_fake = true;
2248
2249 else if (le16_to_cpu(rp->lmp_subver) <= 0x0529 &&
2250 rp->hci_ver > BLUETOOTH_VER_1_2)
2251 is_fake = true;
2252
2253 else if (le16_to_cpu(rp->lmp_subver) <= 0x0c5c &&
2254 rp->hci_ver > BLUETOOTH_VER_2_0)
2255 is_fake = true;
2256
2257 else if (le16_to_cpu(rp->lmp_subver) <= 0x1899 &&
2258 rp->hci_ver > BLUETOOTH_VER_2_1)
2259 is_fake = true;
2260
2261 else if (le16_to_cpu(rp->lmp_subver) <= 0x22bb &&
2262 rp->hci_ver > BLUETOOTH_VER_4_0)
2263 is_fake = true;
2264
2265 /* Other clones which beat all the above checks */
2266 else if (bcdDevice == 0x0134 &&
2267 le16_to_cpu(rp->lmp_subver) == 0x0c5c &&
2268 rp->hci_ver == BLUETOOTH_VER_2_0)
2269 is_fake = true;
2270
2271 if (is_fake) {
2272 bt_dev_warn(hdev, "CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once...");
2273
2274 /* Generally these clones have big discrepancies between
2275 * advertised features and what's actually supported.
2276 * Probably will need to be expanded in the future;
2277 * without these the controller will lock up.
2278 */
2279 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
2280 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks);
2281 set_bit(HCI_QUIRK_BROKEN_FILTER_CLEAR_ALL, &hdev->quirks);
2282 set_bit(HCI_QUIRK_NO_SUSPEND_NOTIFIER, &hdev->quirks);
2283
2284 /* Clear the reset quirk since this is not an actual
2285 * early Bluetooth 1.1 device from CSR.
2286 */
2287 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
2288 clear_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
2289
2290 /*
2291 * Special workaround for these BT 4.0 chip clones, and potentially more:
2292 *
2293 * - 0x0134: a Barrot 8041a02 (HCI rev: 0x0810 sub: 0x1012)
2294 * - 0x7558: IC markings FR3191AHAL 749H15143 (HCI rev/sub-version: 0x0709)
2295 *
2296 * These controllers are really messed-up.
2297 *
2298 * 1. Their bulk RX endpoint will never report any data unless
2299 * the device was suspended at least once (yes, really).
2300 * 2. They will not wakeup when autosuspended and receiving data
2301 * on their bulk RX endpoint from e.g. a keyboard or mouse
2302 * (IOW remote-wakeup support is broken for the bulk endpoint).
2303 *
2304 * To fix 1. enable runtime-suspend, force-suspend the
2305 * HCI and then wake-it up by disabling runtime-suspend.
2306 *
2307 * To fix 2. clear the HCI's can_wake flag, this way the HCI
2308 * will still be autosuspended when it is not open.
2309 *
2310 * --
2311 *
2312 * Because these are widespread problems we prefer generic solutions; so
2313 * apply this initialization quirk to every controller that gets here,
2314 * it should be harmless. The alternative is to not work at all.
2315 */
2316 pm_runtime_allow(&data->udev->dev);
2317
2318 ret = pm_runtime_suspend(&data->udev->dev);
2319 if (ret >= 0)
2320 msleep(200);
2321 else
2322 bt_dev_warn(hdev, "CSR: Couldn't suspend the device for our Barrot 8041a02 receive-issue workaround");
2323
2324 pm_runtime_forbid(&data->udev->dev);
2325
2326 device_set_wakeup_capable(&data->udev->dev, false);
2327
2328 /* Re-enable autosuspend if this was requested */
2329 if (enable_autosuspend)
2330 usb_enable_autosuspend(data->udev);
2331 }
2332
2333 kfree_skb(skb);
2334
2335 return 0;
2336}
2337
2338static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
2339{
2340 struct sk_buff *skb;
2341 struct hci_event_hdr *hdr;
2342 struct hci_ev_cmd_complete *evt;
2343
2344 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL);
2345 if (!skb)
2346 return -ENOMEM;
2347
2348 hdr = skb_put(skb, sizeof(*hdr));
2349 hdr->evt = HCI_EV_CMD_COMPLETE;
2350 hdr->plen = sizeof(*evt) + 1;
2351
2352 evt = skb_put(skb, sizeof(*evt));
2353 evt->ncmd = 0x01;
2354 evt->opcode = cpu_to_le16(opcode);
2355
2356 skb_put_u8(skb, 0x00);
2357
2358 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
2359
2360 return hci_recv_frame(hdev, skb);
2361}
2362
2363static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
2364 int count)
2365{
2366 struct hci_dev *hdev = data->hdev;
2367
2368 /* When the device is in bootloader mode, then it can send
2369 * events via the bulk endpoint. These events are treated the
2370 * same way as the ones received from the interrupt endpoint.
2371 */
2372 if (btintel_test_flag(hdev, INTEL_BOOTLOADER))
2373 return btusb_recv_intr(data, buffer, count);
2374
2375 return btusb_recv_bulk(data, buffer, count);
2376}
2377
2378static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb)
2379{
2380 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) {
2381 struct hci_event_hdr *hdr = (void *)skb->data;
2382
2383 if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff &&
2384 hdr->plen > 0) {
2385 const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1;
2386 unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1;
2387
2388 switch (skb->data[2]) {
2389 case 0x02:
2390 /* When switching to the operational firmware
2391 * the device sends a vendor specific event
2392 * indicating that the bootup completed.
2393 */
2394 btintel_bootup(hdev, ptr, len);
2395 break;
2396 case 0x06:
2397 /* When the firmware loading completes the
2398 * device sends out a vendor specific event
2399 * indicating the result of the firmware
2400 * loading.
2401 */
2402 btintel_secure_send_result(hdev, ptr, len);
2403 break;
2404 }
2405 }
2406 }
2407
2408 return hci_recv_frame(hdev, skb);
2409}
2410
2411static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
2412{
2413 struct urb *urb;
2414
2415 BT_DBG("%s", hdev->name);
2416
2417 switch (hci_skb_pkt_type(skb)) {
2418 case HCI_COMMAND_PKT:
2419 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) {
2420 struct hci_command_hdr *cmd = (void *)skb->data;
2421 __u16 opcode = le16_to_cpu(cmd->opcode);
2422
2423 /* When in bootloader mode and the command 0xfc09
2424 * is received, it needs to be send down the
2425 * bulk endpoint. So allocate a bulk URB instead.
2426 */
2427 if (opcode == 0xfc09)
2428 urb = alloc_bulk_urb(hdev, skb);
2429 else
2430 urb = alloc_ctrl_urb(hdev, skb);
2431
2432 /* When the 0xfc01 command is issued to boot into
2433 * the operational firmware, it will actually not
2434 * send a command complete event. To keep the flow
2435 * control working inject that event here.
2436 */
2437 if (opcode == 0xfc01)
2438 inject_cmd_complete(hdev, opcode);
2439 } else {
2440 urb = alloc_ctrl_urb(hdev, skb);
2441 }
2442 if (IS_ERR(urb))
2443 return PTR_ERR(urb);
2444
2445 hdev->stat.cmd_tx++;
2446 return submit_or_queue_tx_urb(hdev, urb);
2447
2448 case HCI_ACLDATA_PKT:
2449 urb = alloc_bulk_urb(hdev, skb);
2450 if (IS_ERR(urb))
2451 return PTR_ERR(urb);
2452
2453 hdev->stat.acl_tx++;
2454 return submit_or_queue_tx_urb(hdev, urb);
2455
2456 case HCI_SCODATA_PKT:
2457 if (hci_conn_num(hdev, SCO_LINK) < 1)
2458 return -ENODEV;
2459
2460 urb = alloc_isoc_urb(hdev, skb);
2461 if (IS_ERR(urb))
2462 return PTR_ERR(urb);
2463
2464 hdev->stat.sco_tx++;
2465 return submit_tx_urb(hdev, urb);
2466
2467 case HCI_ISODATA_PKT:
2468 urb = alloc_bulk_urb(hdev, skb);
2469 if (IS_ERR(urb))
2470 return PTR_ERR(urb);
2471
2472 return submit_or_queue_tx_urb(hdev, urb);
2473 }
2474
2475 return -EILSEQ;
2476}
2477
2478static int btusb_setup_realtek(struct hci_dev *hdev)
2479{
2480 struct btusb_data *data = hci_get_drvdata(hdev);
2481 int ret;
2482
2483 ret = btrtl_setup_realtek(hdev);
2484
2485 if (btrealtek_test_flag(data->hdev, REALTEK_ALT6_CONTINUOUS_TX_CHIP))
2486 set_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags);
2487
2488 return ret;
2489}
2490
2491/* UHW CR mapping */
2492#define MTK_BT_MISC 0x70002510
2493#define MTK_BT_SUBSYS_RST 0x70002610
2494#define MTK_UDMA_INT_STA_BT 0x74000024
2495#define MTK_UDMA_INT_STA_BT1 0x74000308
2496#define MTK_BT_WDT_STATUS 0x740003A0
2497#define MTK_EP_RST_OPT 0x74011890
2498#define MTK_EP_RST_IN_OUT_OPT 0x00010001
2499#define MTK_BT_RST_DONE 0x00000100
2500#define MTK_BT_RESET_WAIT_MS 100
2501#define MTK_BT_RESET_NUM_TRIES 10
2502
2503static void btusb_mtk_wmt_recv(struct urb *urb)
2504{
2505 struct hci_dev *hdev = urb->context;
2506 struct btusb_data *data = hci_get_drvdata(hdev);
2507 struct sk_buff *skb;
2508 int err;
2509
2510 if (urb->status == 0 && urb->actual_length > 0) {
2511 hdev->stat.byte_rx += urb->actual_length;
2512
2513 /* WMT event shouldn't be fragmented and the size should be
2514 * less than HCI_WMT_MAX_EVENT_SIZE.
2515 */
2516 skb = bt_skb_alloc(HCI_WMT_MAX_EVENT_SIZE, GFP_ATOMIC);
2517 if (!skb) {
2518 hdev->stat.err_rx++;
2519 kfree(urb->setup_packet);
2520 return;
2521 }
2522
2523 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
2524 skb_put_data(skb, urb->transfer_buffer, urb->actual_length);
2525
2526 /* When someone waits for the WMT event, the skb is being cloned
2527 * and being processed the events from there then.
2528 */
2529 if (test_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags)) {
2530 data->evt_skb = skb_clone(skb, GFP_ATOMIC);
2531 if (!data->evt_skb) {
2532 kfree_skb(skb);
2533 kfree(urb->setup_packet);
2534 return;
2535 }
2536 }
2537
2538 err = hci_recv_frame(hdev, skb);
2539 if (err < 0) {
2540 kfree_skb(data->evt_skb);
2541 data->evt_skb = NULL;
2542 kfree(urb->setup_packet);
2543 return;
2544 }
2545
2546 if (test_and_clear_bit(BTUSB_TX_WAIT_VND_EVT,
2547 &data->flags)) {
2548 /* Barrier to sync with other CPUs */
2549 smp_mb__after_atomic();
2550 wake_up_bit(&data->flags,
2551 BTUSB_TX_WAIT_VND_EVT);
2552 }
2553 kfree(urb->setup_packet);
2554 return;
2555 } else if (urb->status == -ENOENT) {
2556 /* Avoid suspend failed when usb_kill_urb */
2557 return;
2558 }
2559
2560 usb_mark_last_busy(data->udev);
2561
2562 /* The URB complete handler is still called with urb->actual_length = 0
2563 * when the event is not available, so we should keep re-submitting
2564 * URB until WMT event returns, Also, It's necessary to wait some time
2565 * between the two consecutive control URBs to relax the target device
2566 * to generate the event. Otherwise, the WMT event cannot return from
2567 * the device successfully.
2568 */
2569 udelay(500);
2570
2571 usb_anchor_urb(urb, &data->ctrl_anchor);
2572 err = usb_submit_urb(urb, GFP_ATOMIC);
2573 if (err < 0) {
2574 kfree(urb->setup_packet);
2575 /* -EPERM: urb is being killed;
2576 * -ENODEV: device got disconnected
2577 */
2578 if (err != -EPERM && err != -ENODEV)
2579 bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
2580 urb, -err);
2581 usb_unanchor_urb(urb);
2582 }
2583}
2584
2585static int btusb_mtk_submit_wmt_recv_urb(struct hci_dev *hdev)
2586{
2587 struct btusb_data *data = hci_get_drvdata(hdev);
2588 struct usb_ctrlrequest *dr;
2589 unsigned char *buf;
2590 int err, size = 64;
2591 unsigned int pipe;
2592 struct urb *urb;
2593
2594 urb = usb_alloc_urb(0, GFP_KERNEL);
2595 if (!urb)
2596 return -ENOMEM;
2597
2598 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
2599 if (!dr) {
2600 usb_free_urb(urb);
2601 return -ENOMEM;
2602 }
2603
2604 dr->bRequestType = USB_TYPE_VENDOR | USB_DIR_IN;
2605 dr->bRequest = 1;
2606 dr->wIndex = cpu_to_le16(0);
2607 dr->wValue = cpu_to_le16(48);
2608 dr->wLength = cpu_to_le16(size);
2609
2610 buf = kmalloc(size, GFP_KERNEL);
2611 if (!buf) {
2612 kfree(dr);
2613 usb_free_urb(urb);
2614 return -ENOMEM;
2615 }
2616
2617 pipe = usb_rcvctrlpipe(data->udev, 0);
2618
2619 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
2620 buf, size, btusb_mtk_wmt_recv, hdev);
2621
2622 urb->transfer_flags |= URB_FREE_BUFFER;
2623
2624 usb_anchor_urb(urb, &data->ctrl_anchor);
2625 err = usb_submit_urb(urb, GFP_KERNEL);
2626 if (err < 0) {
2627 if (err != -EPERM && err != -ENODEV)
2628 bt_dev_err(hdev, "urb %p submission failed (%d)",
2629 urb, -err);
2630 usb_unanchor_urb(urb);
2631 }
2632
2633 usb_free_urb(urb);
2634
2635 return err;
2636}
2637
2638static int btusb_mtk_hci_wmt_sync(struct hci_dev *hdev,
2639 struct btmtk_hci_wmt_params *wmt_params)
2640{
2641 struct btusb_data *data = hci_get_drvdata(hdev);
2642 struct btmtk_hci_wmt_evt_funcc *wmt_evt_funcc;
2643 u32 hlen, status = BTMTK_WMT_INVALID;
2644 struct btmtk_hci_wmt_evt *wmt_evt;
2645 struct btmtk_hci_wmt_cmd *wc;
2646 struct btmtk_wmt_hdr *hdr;
2647 int err;
2648
2649 /* Send the WMT command and wait until the WMT event returns */
2650 hlen = sizeof(*hdr) + wmt_params->dlen;
2651 if (hlen > 255)
2652 return -EINVAL;
2653
2654 wc = kzalloc(hlen, GFP_KERNEL);
2655 if (!wc)
2656 return -ENOMEM;
2657
2658 hdr = &wc->hdr;
2659 hdr->dir = 1;
2660 hdr->op = wmt_params->op;
2661 hdr->dlen = cpu_to_le16(wmt_params->dlen + 1);
2662 hdr->flag = wmt_params->flag;
2663 memcpy(wc->data, wmt_params->data, wmt_params->dlen);
2664
2665 set_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2666
2667 /* WMT cmd/event doesn't follow up the generic HCI cmd/event handling,
2668 * it needs constantly polling control pipe until the host received the
2669 * WMT event, thus, we should require to specifically acquire PM counter
2670 * on the USB to prevent the interface from entering auto suspended
2671 * while WMT cmd/event in progress.
2672 */
2673 err = usb_autopm_get_interface(data->intf);
2674 if (err < 0)
2675 goto err_free_wc;
2676
2677 err = __hci_cmd_send(hdev, 0xfc6f, hlen, wc);
2678
2679 if (err < 0) {
2680 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2681 usb_autopm_put_interface(data->intf);
2682 goto err_free_wc;
2683 }
2684
2685 /* Submit control IN URB on demand to process the WMT event */
2686 err = btusb_mtk_submit_wmt_recv_urb(hdev);
2687
2688 usb_autopm_put_interface(data->intf);
2689
2690 if (err < 0)
2691 goto err_free_wc;
2692
2693 /* The vendor specific WMT commands are all answered by a vendor
2694 * specific event and will have the Command Status or Command
2695 * Complete as with usual HCI command flow control.
2696 *
2697 * After sending the command, wait for BTUSB_TX_WAIT_VND_EVT
2698 * state to be cleared. The driver specific event receive routine
2699 * will clear that state and with that indicate completion of the
2700 * WMT command.
2701 */
2702 err = wait_on_bit_timeout(&data->flags, BTUSB_TX_WAIT_VND_EVT,
2703 TASK_INTERRUPTIBLE, HCI_INIT_TIMEOUT);
2704 if (err == -EINTR) {
2705 bt_dev_err(hdev, "Execution of wmt command interrupted");
2706 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2707 goto err_free_wc;
2708 }
2709
2710 if (err) {
2711 bt_dev_err(hdev, "Execution of wmt command timed out");
2712 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2713 err = -ETIMEDOUT;
2714 goto err_free_wc;
2715 }
2716
2717 /* Parse and handle the return WMT event */
2718 wmt_evt = (struct btmtk_hci_wmt_evt *)data->evt_skb->data;
2719 if (wmt_evt->whdr.op != hdr->op) {
2720 bt_dev_err(hdev, "Wrong op received %d expected %d",
2721 wmt_evt->whdr.op, hdr->op);
2722 err = -EIO;
2723 goto err_free_skb;
2724 }
2725
2726 switch (wmt_evt->whdr.op) {
2727 case BTMTK_WMT_SEMAPHORE:
2728 if (wmt_evt->whdr.flag == 2)
2729 status = BTMTK_WMT_PATCH_UNDONE;
2730 else
2731 status = BTMTK_WMT_PATCH_DONE;
2732 break;
2733 case BTMTK_WMT_FUNC_CTRL:
2734 wmt_evt_funcc = (struct btmtk_hci_wmt_evt_funcc *)wmt_evt;
2735 if (be16_to_cpu(wmt_evt_funcc->status) == 0x404)
2736 status = BTMTK_WMT_ON_DONE;
2737 else if (be16_to_cpu(wmt_evt_funcc->status) == 0x420)
2738 status = BTMTK_WMT_ON_PROGRESS;
2739 else
2740 status = BTMTK_WMT_ON_UNDONE;
2741 break;
2742 case BTMTK_WMT_PATCH_DWNLD:
2743 if (wmt_evt->whdr.flag == 2)
2744 status = BTMTK_WMT_PATCH_DONE;
2745 else if (wmt_evt->whdr.flag == 1)
2746 status = BTMTK_WMT_PATCH_PROGRESS;
2747 else
2748 status = BTMTK_WMT_PATCH_UNDONE;
2749 break;
2750 }
2751
2752 if (wmt_params->status)
2753 *wmt_params->status = status;
2754
2755err_free_skb:
2756 kfree_skb(data->evt_skb);
2757 data->evt_skb = NULL;
2758err_free_wc:
2759 kfree(wc);
2760 return err;
2761}
2762
2763static int btusb_mtk_func_query(struct hci_dev *hdev)
2764{
2765 struct btmtk_hci_wmt_params wmt_params;
2766 int status, err;
2767 u8 param = 0;
2768
2769 /* Query whether the function is enabled */
2770 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
2771 wmt_params.flag = 4;
2772 wmt_params.dlen = sizeof(param);
2773 wmt_params.data = ¶m;
2774 wmt_params.status = &status;
2775
2776 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2777 if (err < 0) {
2778 bt_dev_err(hdev, "Failed to query function status (%d)", err);
2779 return err;
2780 }
2781
2782 return status;
2783}
2784
2785static int btusb_mtk_uhw_reg_write(struct btusb_data *data, u32 reg, u32 val)
2786{
2787 struct hci_dev *hdev = data->hdev;
2788 int pipe, err;
2789 void *buf;
2790
2791 buf = kzalloc(4, GFP_KERNEL);
2792 if (!buf)
2793 return -ENOMEM;
2794
2795 put_unaligned_le32(val, buf);
2796
2797 pipe = usb_sndctrlpipe(data->udev, 0);
2798 err = usb_control_msg(data->udev, pipe, 0x02,
2799 0x5E,
2800 reg >> 16, reg & 0xffff,
2801 buf, 4, USB_CTRL_SET_TIMEOUT);
2802 if (err < 0) {
2803 bt_dev_err(hdev, "Failed to write uhw reg(%d)", err);
2804 goto err_free_buf;
2805 }
2806
2807err_free_buf:
2808 kfree(buf);
2809
2810 return err;
2811}
2812
2813static int btusb_mtk_uhw_reg_read(struct btusb_data *data, u32 reg, u32 *val)
2814{
2815 struct hci_dev *hdev = data->hdev;
2816 int pipe, err;
2817 void *buf;
2818
2819 buf = kzalloc(4, GFP_KERNEL);
2820 if (!buf)
2821 return -ENOMEM;
2822
2823 pipe = usb_rcvctrlpipe(data->udev, 0);
2824 err = usb_control_msg(data->udev, pipe, 0x01,
2825 0xDE,
2826 reg >> 16, reg & 0xffff,
2827 buf, 4, USB_CTRL_SET_TIMEOUT);
2828 if (err < 0) {
2829 bt_dev_err(hdev, "Failed to read uhw reg(%d)", err);
2830 goto err_free_buf;
2831 }
2832
2833 *val = get_unaligned_le32(buf);
2834 bt_dev_dbg(hdev, "reg=%x, value=0x%08x", reg, *val);
2835
2836err_free_buf:
2837 kfree(buf);
2838
2839 return err;
2840}
2841
2842static int btusb_mtk_reg_read(struct btusb_data *data, u32 reg, u32 *val)
2843{
2844 int pipe, err, size = sizeof(u32);
2845 void *buf;
2846
2847 buf = kzalloc(size, GFP_KERNEL);
2848 if (!buf)
2849 return -ENOMEM;
2850
2851 pipe = usb_rcvctrlpipe(data->udev, 0);
2852 err = usb_control_msg(data->udev, pipe, 0x63,
2853 USB_TYPE_VENDOR | USB_DIR_IN,
2854 reg >> 16, reg & 0xffff,
2855 buf, size, USB_CTRL_SET_TIMEOUT);
2856 if (err < 0)
2857 goto err_free_buf;
2858
2859 *val = get_unaligned_le32(buf);
2860
2861err_free_buf:
2862 kfree(buf);
2863
2864 return err;
2865}
2866
2867static int btusb_mtk_id_get(struct btusb_data *data, u32 reg, u32 *id)
2868{
2869 return btusb_mtk_reg_read(data, reg, id);
2870}
2871
2872static int btusb_mtk_setup(struct hci_dev *hdev)
2873{
2874 struct btusb_data *data = hci_get_drvdata(hdev);
2875 struct btmtk_hci_wmt_params wmt_params;
2876 ktime_t calltime, delta, rettime;
2877 struct btmtk_tci_sleep tci_sleep;
2878 unsigned long long duration;
2879 struct sk_buff *skb;
2880 const char *fwname;
2881 int err, status;
2882 u32 dev_id;
2883 char fw_bin_name[64];
2884 u32 fw_version = 0;
2885 u8 param;
2886
2887 calltime = ktime_get();
2888
2889 err = btusb_mtk_id_get(data, 0x80000008, &dev_id);
2890 if (err < 0) {
2891 bt_dev_err(hdev, "Failed to get device id (%d)", err);
2892 return err;
2893 }
2894
2895 if (!dev_id) {
2896 err = btusb_mtk_id_get(data, 0x70010200, &dev_id);
2897 if (err < 0) {
2898 bt_dev_err(hdev, "Failed to get device id (%d)", err);
2899 return err;
2900 }
2901 err = btusb_mtk_id_get(data, 0x80021004, &fw_version);
2902 if (err < 0) {
2903 bt_dev_err(hdev, "Failed to get fw version (%d)", err);
2904 return err;
2905 }
2906 }
2907
2908 switch (dev_id) {
2909 case 0x7663:
2910 fwname = FIRMWARE_MT7663;
2911 break;
2912 case 0x7668:
2913 fwname = FIRMWARE_MT7668;
2914 break;
2915 case 0x7922:
2916 case 0x7961:
2917 snprintf(fw_bin_name, sizeof(fw_bin_name),
2918 "mediatek/BT_RAM_CODE_MT%04x_1_%x_hdr.bin",
2919 dev_id & 0xffff, (fw_version & 0xff) + 1);
2920 err = btmtk_setup_firmware_79xx(hdev, fw_bin_name,
2921 btusb_mtk_hci_wmt_sync);
2922 if (err < 0) {
2923 bt_dev_err(hdev, "Failed to set up firmware (%d)", err);
2924 return err;
2925 }
2926
2927 /* It's Device EndPoint Reset Option Register */
2928 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, MTK_EP_RST_IN_OUT_OPT);
2929
2930 /* Enable Bluetooth protocol */
2931 param = 1;
2932 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
2933 wmt_params.flag = 0;
2934 wmt_params.dlen = sizeof(param);
2935 wmt_params.data = ¶m;
2936 wmt_params.status = NULL;
2937
2938 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2939 if (err < 0) {
2940 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
2941 return err;
2942 }
2943
2944 hci_set_msft_opcode(hdev, 0xFD30);
2945 hci_set_aosp_capable(hdev);
2946 goto done;
2947 default:
2948 bt_dev_err(hdev, "Unsupported hardware variant (%08x)",
2949 dev_id);
2950 return -ENODEV;
2951 }
2952
2953 /* Query whether the firmware is already download */
2954 wmt_params.op = BTMTK_WMT_SEMAPHORE;
2955 wmt_params.flag = 1;
2956 wmt_params.dlen = 0;
2957 wmt_params.data = NULL;
2958 wmt_params.status = &status;
2959
2960 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2961 if (err < 0) {
2962 bt_dev_err(hdev, "Failed to query firmware status (%d)", err);
2963 return err;
2964 }
2965
2966 if (status == BTMTK_WMT_PATCH_DONE) {
2967 bt_dev_info(hdev, "firmware already downloaded");
2968 goto ignore_setup_fw;
2969 }
2970
2971 /* Setup a firmware which the device definitely requires */
2972 err = btmtk_setup_firmware(hdev, fwname,
2973 btusb_mtk_hci_wmt_sync);
2974 if (err < 0)
2975 return err;
2976
2977ignore_setup_fw:
2978 err = readx_poll_timeout(btusb_mtk_func_query, hdev, status,
2979 status < 0 || status != BTMTK_WMT_ON_PROGRESS,
2980 2000, 5000000);
2981 /* -ETIMEDOUT happens */
2982 if (err < 0)
2983 return err;
2984
2985 /* The other errors happen in btusb_mtk_func_query */
2986 if (status < 0)
2987 return status;
2988
2989 if (status == BTMTK_WMT_ON_DONE) {
2990 bt_dev_info(hdev, "function already on");
2991 goto ignore_func_on;
2992 }
2993
2994 /* Enable Bluetooth protocol */
2995 param = 1;
2996 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
2997 wmt_params.flag = 0;
2998 wmt_params.dlen = sizeof(param);
2999 wmt_params.data = ¶m;
3000 wmt_params.status = NULL;
3001
3002 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3003 if (err < 0) {
3004 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3005 return err;
3006 }
3007
3008ignore_func_on:
3009 /* Apply the low power environment setup */
3010 tci_sleep.mode = 0x5;
3011 tci_sleep.duration = cpu_to_le16(0x640);
3012 tci_sleep.host_duration = cpu_to_le16(0x640);
3013 tci_sleep.host_wakeup_pin = 0;
3014 tci_sleep.time_compensation = 0;
3015
3016 skb = __hci_cmd_sync(hdev, 0xfc7a, sizeof(tci_sleep), &tci_sleep,
3017 HCI_INIT_TIMEOUT);
3018 if (IS_ERR(skb)) {
3019 err = PTR_ERR(skb);
3020 bt_dev_err(hdev, "Failed to apply low power setting (%d)", err);
3021 return err;
3022 }
3023 kfree_skb(skb);
3024
3025done:
3026 rettime = ktime_get();
3027 delta = ktime_sub(rettime, calltime);
3028 duration = (unsigned long long)ktime_to_ns(delta) >> 10;
3029
3030 bt_dev_info(hdev, "Device setup in %llu usecs", duration);
3031
3032 return 0;
3033}
3034
3035static int btusb_mtk_shutdown(struct hci_dev *hdev)
3036{
3037 struct btmtk_hci_wmt_params wmt_params;
3038 u8 param = 0;
3039 int err;
3040
3041 /* Disable the device */
3042 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3043 wmt_params.flag = 0;
3044 wmt_params.dlen = sizeof(param);
3045 wmt_params.data = ¶m;
3046 wmt_params.status = NULL;
3047
3048 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3049 if (err < 0) {
3050 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3051 return err;
3052 }
3053
3054 return 0;
3055}
3056
3057static void btusb_mtk_cmd_timeout(struct hci_dev *hdev)
3058{
3059 struct btusb_data *data = hci_get_drvdata(hdev);
3060 u32 val;
3061 int err, retry = 0;
3062
3063 /* It's MediaTek specific bluetooth reset mechanism via USB */
3064 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
3065 bt_dev_err(hdev, "last reset failed? Not resetting again");
3066 return;
3067 }
3068
3069 err = usb_autopm_get_interface(data->intf);
3070 if (err < 0)
3071 return;
3072
3073 btusb_stop_traffic(data);
3074 usb_kill_anchored_urbs(&data->tx_anchor);
3075
3076 /* It's Device EndPoint Reset Option Register */
3077 bt_dev_dbg(hdev, "Initiating reset mechanism via uhw");
3078 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, MTK_EP_RST_IN_OUT_OPT);
3079 btusb_mtk_uhw_reg_read(data, MTK_BT_WDT_STATUS, &val);
3080
3081 /* Reset the bluetooth chip via USB interface. */
3082 btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, 1);
3083 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT, 0x000000FF);
3084 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT, &val);
3085 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT1, 0x000000FF);
3086 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT1, &val);
3087 /* MT7921 need to delay 20ms between toggle reset bit */
3088 msleep(20);
3089 btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, 0);
3090 btusb_mtk_uhw_reg_read(data, MTK_BT_SUBSYS_RST, &val);
3091
3092 /* Poll the register until reset is completed */
3093 do {
3094 btusb_mtk_uhw_reg_read(data, MTK_BT_MISC, &val);
3095 if (val & MTK_BT_RST_DONE) {
3096 bt_dev_dbg(hdev, "Bluetooth Reset Successfully");
3097 break;
3098 }
3099
3100 bt_dev_dbg(hdev, "Polling Bluetooth Reset CR");
3101 retry++;
3102 msleep(MTK_BT_RESET_WAIT_MS);
3103 } while (retry < MTK_BT_RESET_NUM_TRIES);
3104
3105 btusb_mtk_id_get(data, 0x70010200, &val);
3106 if (!val)
3107 bt_dev_err(hdev, "Can't get device id, subsys reset fail.");
3108
3109 usb_queue_reset_device(data->intf);
3110
3111 clear_bit(BTUSB_HW_RESET_ACTIVE, &data->flags);
3112}
3113
3114static int btusb_recv_acl_mtk(struct hci_dev *hdev, struct sk_buff *skb)
3115{
3116 struct btusb_data *data = hci_get_drvdata(hdev);
3117 u16 handle = le16_to_cpu(hci_acl_hdr(skb)->handle);
3118
3119 switch (handle) {
3120 case 0xfc6f: /* Firmware dump from device */
3121 /* When the firmware hangs, the device can no longer
3122 * suspend and thus disable auto-suspend.
3123 */
3124 usb_disable_autosuspend(data->udev);
3125 fallthrough;
3126 case 0x05ff: /* Firmware debug logging 1 */
3127 case 0x05fe: /* Firmware debug logging 2 */
3128 return hci_recv_diag(hdev, skb);
3129 }
3130
3131 return hci_recv_frame(hdev, skb);
3132}
3133
3134#ifdef CONFIG_PM
3135/* Configure an out-of-band gpio as wake-up pin, if specified in device tree */
3136static int marvell_config_oob_wake(struct hci_dev *hdev)
3137{
3138 struct sk_buff *skb;
3139 struct btusb_data *data = hci_get_drvdata(hdev);
3140 struct device *dev = &data->udev->dev;
3141 u16 pin, gap, opcode;
3142 int ret;
3143 u8 cmd[5];
3144
3145 /* Move on if no wakeup pin specified */
3146 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) ||
3147 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap))
3148 return 0;
3149
3150 /* Vendor specific command to configure a GPIO as wake-up pin */
3151 opcode = hci_opcode_pack(0x3F, 0x59);
3152 cmd[0] = opcode & 0xFF;
3153 cmd[1] = opcode >> 8;
3154 cmd[2] = 2; /* length of parameters that follow */
3155 cmd[3] = pin;
3156 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */
3157
3158 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
3159 if (!skb) {
3160 bt_dev_err(hdev, "%s: No memory", __func__);
3161 return -ENOMEM;
3162 }
3163
3164 skb_put_data(skb, cmd, sizeof(cmd));
3165 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT;
3166
3167 ret = btusb_send_frame(hdev, skb);
3168 if (ret) {
3169 bt_dev_err(hdev, "%s: configuration failed", __func__);
3170 kfree_skb(skb);
3171 return ret;
3172 }
3173
3174 return 0;
3175}
3176#endif
3177
3178static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
3179 const bdaddr_t *bdaddr)
3180{
3181 struct sk_buff *skb;
3182 u8 buf[8];
3183 long ret;
3184
3185 buf[0] = 0xfe;
3186 buf[1] = sizeof(bdaddr_t);
3187 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
3188
3189 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
3190 if (IS_ERR(skb)) {
3191 ret = PTR_ERR(skb);
3192 bt_dev_err(hdev, "changing Marvell device address failed (%ld)",
3193 ret);
3194 return ret;
3195 }
3196 kfree_skb(skb);
3197
3198 return 0;
3199}
3200
3201static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
3202 const bdaddr_t *bdaddr)
3203{
3204 struct sk_buff *skb;
3205 u8 buf[10];
3206 long ret;
3207
3208 buf[0] = 0x01;
3209 buf[1] = 0x01;
3210 buf[2] = 0x00;
3211 buf[3] = sizeof(bdaddr_t);
3212 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
3213
3214 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
3215 if (IS_ERR(skb)) {
3216 ret = PTR_ERR(skb);
3217 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
3218 return ret;
3219 }
3220 kfree_skb(skb);
3221
3222 return 0;
3223}
3224
3225static int btusb_set_bdaddr_wcn6855(struct hci_dev *hdev,
3226 const bdaddr_t *bdaddr)
3227{
3228 struct sk_buff *skb;
3229 u8 buf[6];
3230 long ret;
3231
3232 memcpy(buf, bdaddr, sizeof(bdaddr_t));
3233
3234 skb = __hci_cmd_sync_ev(hdev, 0xfc14, sizeof(buf), buf,
3235 HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT);
3236 if (IS_ERR(skb)) {
3237 ret = PTR_ERR(skb);
3238 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
3239 return ret;
3240 }
3241 kfree_skb(skb);
3242
3243 return 0;
3244}
3245
3246#define QCA_DFU_PACKET_LEN 4096
3247
3248#define QCA_GET_TARGET_VERSION 0x09
3249#define QCA_CHECK_STATUS 0x05
3250#define QCA_DFU_DOWNLOAD 0x01
3251
3252#define QCA_SYSCFG_UPDATED 0x40
3253#define QCA_PATCH_UPDATED 0x80
3254#define QCA_DFU_TIMEOUT 3000
3255#define QCA_FLAG_MULTI_NVM 0x80
3256#define QCA_BT_RESET_WAIT_MS 100
3257
3258#define WCN6855_2_0_RAM_VERSION_GF 0x400c1200
3259#define WCN6855_2_1_RAM_VERSION_GF 0x400c1211
3260
3261struct qca_version {
3262 __le32 rom_version;
3263 __le32 patch_version;
3264 __le32 ram_version;
3265 __u8 chip_id;
3266 __u8 platform_id;
3267 __le16 flag;
3268 __u8 reserved[4];
3269} __packed;
3270
3271struct qca_rampatch_version {
3272 __le16 rom_version_high;
3273 __le16 rom_version_low;
3274 __le16 patch_version;
3275} __packed;
3276
3277struct qca_device_info {
3278 u32 rom_version;
3279 u8 rampatch_hdr; /* length of header in rampatch */
3280 u8 nvm_hdr; /* length of header in NVM */
3281 u8 ver_offset; /* offset of version structure in rampatch */
3282};
3283
3284static const struct qca_device_info qca_devices_table[] = {
3285 { 0x00000100, 20, 4, 8 }, /* Rome 1.0 */
3286 { 0x00000101, 20, 4, 8 }, /* Rome 1.1 */
3287 { 0x00000200, 28, 4, 16 }, /* Rome 2.0 */
3288 { 0x00000201, 28, 4, 16 }, /* Rome 2.1 */
3289 { 0x00000300, 28, 4, 16 }, /* Rome 3.0 */
3290 { 0x00000302, 28, 4, 16 }, /* Rome 3.2 */
3291 { 0x00130100, 40, 4, 16 }, /* WCN6855 1.0 */
3292 { 0x00130200, 40, 4, 16 }, /* WCN6855 2.0 */
3293 { 0x00130201, 40, 4, 16 }, /* WCN6855 2.1 */
3294 { 0x00190200, 40, 4, 16 }, /* WCN785x 2.0 */
3295};
3296
3297static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request,
3298 void *data, u16 size)
3299{
3300 int pipe, err;
3301 u8 *buf;
3302
3303 buf = kmalloc(size, GFP_KERNEL);
3304 if (!buf)
3305 return -ENOMEM;
3306
3307 /* Found some of USB hosts have IOT issues with ours so that we should
3308 * not wait until HCI layer is ready.
3309 */
3310 pipe = usb_rcvctrlpipe(udev, 0);
3311 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
3312 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
3313 if (err < 0) {
3314 dev_err(&udev->dev, "Failed to access otp area (%d)", err);
3315 goto done;
3316 }
3317
3318 memcpy(data, buf, size);
3319
3320done:
3321 kfree(buf);
3322
3323 return err;
3324}
3325
3326static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
3327 const struct firmware *firmware,
3328 size_t hdr_size)
3329{
3330 struct btusb_data *btdata = hci_get_drvdata(hdev);
3331 struct usb_device *udev = btdata->udev;
3332 size_t count, size, sent = 0;
3333 int pipe, len, err;
3334 u8 *buf;
3335
3336 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
3337 if (!buf)
3338 return -ENOMEM;
3339
3340 count = firmware->size;
3341
3342 size = min_t(size_t, count, hdr_size);
3343 memcpy(buf, firmware->data, size);
3344
3345 /* USB patches should go down to controller through USB path
3346 * because binary format fits to go down through USB channel.
3347 * USB control path is for patching headers and USB bulk is for
3348 * patch body.
3349 */
3350 pipe = usb_sndctrlpipe(udev, 0);
3351 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
3352 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
3353 if (err < 0) {
3354 bt_dev_err(hdev, "Failed to send headers (%d)", err);
3355 goto done;
3356 }
3357
3358 sent += size;
3359 count -= size;
3360
3361 /* ep2 need time to switch from function acl to function dfu,
3362 * so we add 20ms delay here.
3363 */
3364 msleep(20);
3365
3366 while (count) {
3367 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
3368
3369 memcpy(buf, firmware->data + sent, size);
3370
3371 pipe = usb_sndbulkpipe(udev, 0x02);
3372 err = usb_bulk_msg(udev, pipe, buf, size, &len,
3373 QCA_DFU_TIMEOUT);
3374 if (err < 0) {
3375 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)",
3376 sent, firmware->size, err);
3377 break;
3378 }
3379
3380 if (size != len) {
3381 bt_dev_err(hdev, "Failed to get bulk buffer");
3382 err = -EILSEQ;
3383 break;
3384 }
3385
3386 sent += size;
3387 count -= size;
3388 }
3389
3390done:
3391 kfree(buf);
3392 return err;
3393}
3394
3395static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
3396 struct qca_version *ver,
3397 const struct qca_device_info *info)
3398{
3399 struct qca_rampatch_version *rver;
3400 const struct firmware *fw;
3401 u32 ver_rom, ver_patch, rver_rom;
3402 u16 rver_rom_low, rver_rom_high, rver_patch;
3403 char fwname[64];
3404 int err;
3405
3406 ver_rom = le32_to_cpu(ver->rom_version);
3407 ver_patch = le32_to_cpu(ver->patch_version);
3408
3409 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom);
3410
3411 err = request_firmware(&fw, fwname, &hdev->dev);
3412 if (err) {
3413 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)",
3414 fwname, err);
3415 return err;
3416 }
3417
3418 bt_dev_info(hdev, "using rampatch file: %s", fwname);
3419
3420 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
3421 rver_rom_low = le16_to_cpu(rver->rom_version_low);
3422 rver_patch = le16_to_cpu(rver->patch_version);
3423
3424 if (ver_rom & ~0xffffU) {
3425 rver_rom_high = le16_to_cpu(rver->rom_version_high);
3426 rver_rom = rver_rom_high << 16 | rver_rom_low;
3427 } else {
3428 rver_rom = rver_rom_low;
3429 }
3430
3431 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, "
3432 "firmware rome 0x%x build 0x%x",
3433 rver_rom, rver_patch, ver_rom, ver_patch);
3434
3435 if (rver_rom != ver_rom || rver_patch <= ver_patch) {
3436 bt_dev_err(hdev, "rampatch file version did not match with firmware");
3437 err = -EINVAL;
3438 goto done;
3439 }
3440
3441 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
3442
3443done:
3444 release_firmware(fw);
3445
3446 return err;
3447}
3448
3449static void btusb_generate_qca_nvm_name(char *fwname, size_t max_size,
3450 const struct qca_version *ver)
3451{
3452 u32 rom_version = le32_to_cpu(ver->rom_version);
3453 u16 flag = le16_to_cpu(ver->flag);
3454
3455 if (((flag >> 8) & 0xff) == QCA_FLAG_MULTI_NVM) {
3456 /* The board_id should be split into two bytes
3457 * The 1st byte is chip ID, and the 2nd byte is platform ID
3458 * For example, board ID 0x010A, 0x01 is platform ID. 0x0A is chip ID
3459 * we have several platforms, and platform IDs are continuously added
3460 * Platform ID:
3461 * 0x00 is for Mobile
3462 * 0x01 is for X86
3463 * 0x02 is for Automotive
3464 * 0x03 is for Consumer electronic
3465 */
3466 u16 board_id = (ver->chip_id << 8) + ver->platform_id;
3467 const char *variant;
3468
3469 switch (le32_to_cpu(ver->ram_version)) {
3470 case WCN6855_2_0_RAM_VERSION_GF:
3471 case WCN6855_2_1_RAM_VERSION_GF:
3472 variant = "_gf";
3473 break;
3474 default:
3475 variant = "";
3476 break;
3477 }
3478
3479 if (board_id == 0) {
3480 snprintf(fwname, max_size, "qca/nvm_usb_%08x%s.bin",
3481 rom_version, variant);
3482 } else {
3483 snprintf(fwname, max_size, "qca/nvm_usb_%08x%s_%04x.bin",
3484 rom_version, variant, board_id);
3485 }
3486 } else {
3487 snprintf(fwname, max_size, "qca/nvm_usb_%08x.bin",
3488 rom_version);
3489 }
3490
3491}
3492
3493static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
3494 struct qca_version *ver,
3495 const struct qca_device_info *info)
3496{
3497 const struct firmware *fw;
3498 char fwname[64];
3499 int err;
3500
3501 btusb_generate_qca_nvm_name(fwname, sizeof(fwname), ver);
3502
3503 err = request_firmware(&fw, fwname, &hdev->dev);
3504 if (err) {
3505 bt_dev_err(hdev, "failed to request NVM file: %s (%d)",
3506 fwname, err);
3507 return err;
3508 }
3509
3510 bt_dev_info(hdev, "using NVM file: %s", fwname);
3511
3512 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
3513
3514 release_firmware(fw);
3515
3516 return err;
3517}
3518
3519/* identify the ROM version and check whether patches are needed */
3520static bool btusb_qca_need_patch(struct usb_device *udev)
3521{
3522 struct qca_version ver;
3523
3524 if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3525 sizeof(ver)) < 0)
3526 return false;
3527 /* only low ROM versions need patches */
3528 return !(le32_to_cpu(ver.rom_version) & ~0xffffU);
3529}
3530
3531static int btusb_setup_qca(struct hci_dev *hdev)
3532{
3533 struct btusb_data *btdata = hci_get_drvdata(hdev);
3534 struct usb_device *udev = btdata->udev;
3535 const struct qca_device_info *info = NULL;
3536 struct qca_version ver;
3537 u32 ver_rom;
3538 u8 status;
3539 int i, err;
3540
3541 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3542 sizeof(ver));
3543 if (err < 0)
3544 return err;
3545
3546 ver_rom = le32_to_cpu(ver.rom_version);
3547
3548 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
3549 if (ver_rom == qca_devices_table[i].rom_version)
3550 info = &qca_devices_table[i];
3551 }
3552 if (!info) {
3553 /* If the rom_version is not matched in the qca_devices_table
3554 * and the high ROM version is not zero, we assume this chip no
3555 * need to load the rampatch and nvm.
3556 */
3557 if (ver_rom & ~0xffffU)
3558 return 0;
3559
3560 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom);
3561 return -ENODEV;
3562 }
3563
3564 err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status,
3565 sizeof(status));
3566 if (err < 0)
3567 return err;
3568
3569 if (!(status & QCA_PATCH_UPDATED)) {
3570 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
3571 if (err < 0)
3572 return err;
3573 }
3574
3575 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3576 sizeof(ver));
3577 if (err < 0)
3578 return err;
3579
3580 if (!(status & QCA_SYSCFG_UPDATED)) {
3581 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
3582 if (err < 0)
3583 return err;
3584
3585 /* WCN6855 2.1 and later will reset to apply firmware downloaded here, so
3586 * wait ~100ms for reset Done then go ahead, otherwise, it maybe
3587 * cause potential enable failure.
3588 */
3589 if (info->rom_version >= 0x00130201)
3590 msleep(QCA_BT_RESET_WAIT_MS);
3591 }
3592
3593 /* Mark HCI_OP_ENHANCED_SETUP_SYNC_CONN as broken as it doesn't seem to
3594 * work with the likes of HSP/HFP mSBC.
3595 */
3596 set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks);
3597
3598 return 0;
3599}
3600
3601static inline int __set_diag_interface(struct hci_dev *hdev)
3602{
3603 struct btusb_data *data = hci_get_drvdata(hdev);
3604 struct usb_interface *intf = data->diag;
3605 int i;
3606
3607 if (!data->diag)
3608 return -ENODEV;
3609
3610 data->diag_tx_ep = NULL;
3611 data->diag_rx_ep = NULL;
3612
3613 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
3614 struct usb_endpoint_descriptor *ep_desc;
3615
3616 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
3617
3618 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
3619 data->diag_tx_ep = ep_desc;
3620 continue;
3621 }
3622
3623 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
3624 data->diag_rx_ep = ep_desc;
3625 continue;
3626 }
3627 }
3628
3629 if (!data->diag_tx_ep || !data->diag_rx_ep) {
3630 bt_dev_err(hdev, "invalid diagnostic descriptors");
3631 return -ENODEV;
3632 }
3633
3634 return 0;
3635}
3636
3637static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable)
3638{
3639 struct btusb_data *data = hci_get_drvdata(hdev);
3640 struct sk_buff *skb;
3641 struct urb *urb;
3642 unsigned int pipe;
3643
3644 if (!data->diag_tx_ep)
3645 return ERR_PTR(-ENODEV);
3646
3647 urb = usb_alloc_urb(0, GFP_KERNEL);
3648 if (!urb)
3649 return ERR_PTR(-ENOMEM);
3650
3651 skb = bt_skb_alloc(2, GFP_KERNEL);
3652 if (!skb) {
3653 usb_free_urb(urb);
3654 return ERR_PTR(-ENOMEM);
3655 }
3656
3657 skb_put_u8(skb, 0xf0);
3658 skb_put_u8(skb, enable);
3659
3660 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress);
3661
3662 usb_fill_bulk_urb(urb, data->udev, pipe,
3663 skb->data, skb->len, btusb_tx_complete, skb);
3664
3665 skb->dev = (void *)hdev;
3666
3667 return urb;
3668}
3669
3670static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable)
3671{
3672 struct btusb_data *data = hci_get_drvdata(hdev);
3673 struct urb *urb;
3674
3675 if (!data->diag)
3676 return -ENODEV;
3677
3678 if (!test_bit(HCI_RUNNING, &hdev->flags))
3679 return -ENETDOWN;
3680
3681 urb = alloc_diag_urb(hdev, enable);
3682 if (IS_ERR(urb))
3683 return PTR_ERR(urb);
3684
3685 return submit_or_queue_tx_urb(hdev, urb);
3686}
3687
3688#ifdef CONFIG_PM
3689static irqreturn_t btusb_oob_wake_handler(int irq, void *priv)
3690{
3691 struct btusb_data *data = priv;
3692
3693 pm_wakeup_event(&data->udev->dev, 0);
3694 pm_system_wakeup();
3695
3696 /* Disable only if not already disabled (keep it balanced) */
3697 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
3698 disable_irq_nosync(irq);
3699 disable_irq_wake(irq);
3700 }
3701 return IRQ_HANDLED;
3702}
3703
3704static const struct of_device_id btusb_match_table[] = {
3705 { .compatible = "usb1286,204e" },
3706 { .compatible = "usbcf3,e300" }, /* QCA6174A */
3707 { .compatible = "usb4ca,301a" }, /* QCA6174A (Lite-On) */
3708 { }
3709};
3710MODULE_DEVICE_TABLE(of, btusb_match_table);
3711
3712/* Use an oob wakeup pin? */
3713static int btusb_config_oob_wake(struct hci_dev *hdev)
3714{
3715 struct btusb_data *data = hci_get_drvdata(hdev);
3716 struct device *dev = &data->udev->dev;
3717 int irq, ret;
3718
3719 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
3720
3721 if (!of_match_device(btusb_match_table, dev))
3722 return 0;
3723
3724 /* Move on if no IRQ specified */
3725 irq = of_irq_get_byname(dev->of_node, "wakeup");
3726 if (irq <= 0) {
3727 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__);
3728 return 0;
3729 }
3730
3731 irq_set_status_flags(irq, IRQ_NOAUTOEN);
3732 ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler,
3733 0, "OOB Wake-on-BT", data);
3734 if (ret) {
3735 bt_dev_err(hdev, "%s: IRQ request failed", __func__);
3736 return ret;
3737 }
3738
3739 ret = device_init_wakeup(dev, true);
3740 if (ret) {
3741 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__);
3742 return ret;
3743 }
3744
3745 data->oob_wake_irq = irq;
3746 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq);
3747 return 0;
3748}
3749#endif
3750
3751static void btusb_check_needs_reset_resume(struct usb_interface *intf)
3752{
3753 if (dmi_check_system(btusb_needs_reset_resume_table))
3754 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
3755}
3756
3757static bool btusb_wakeup(struct hci_dev *hdev)
3758{
3759 struct btusb_data *data = hci_get_drvdata(hdev);
3760
3761 return device_may_wakeup(&data->udev->dev);
3762}
3763
3764static int btusb_shutdown_qca(struct hci_dev *hdev)
3765{
3766 struct sk_buff *skb;
3767
3768 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
3769 if (IS_ERR(skb)) {
3770 bt_dev_err(hdev, "HCI reset during shutdown failed");
3771 return PTR_ERR(skb);
3772 }
3773 kfree_skb(skb);
3774
3775 return 0;
3776}
3777
3778static ssize_t force_poll_sync_read(struct file *file, char __user *user_buf,
3779 size_t count, loff_t *ppos)
3780{
3781 struct btusb_data *data = file->private_data;
3782 char buf[3];
3783
3784 buf[0] = data->poll_sync ? 'Y' : 'N';
3785 buf[1] = '\n';
3786 buf[2] = '\0';
3787 return simple_read_from_buffer(user_buf, count, ppos, buf, 2);
3788}
3789
3790static ssize_t force_poll_sync_write(struct file *file,
3791 const char __user *user_buf,
3792 size_t count, loff_t *ppos)
3793{
3794 struct btusb_data *data = file->private_data;
3795 bool enable;
3796 int err;
3797
3798 err = kstrtobool_from_user(user_buf, count, &enable);
3799 if (err)
3800 return err;
3801
3802 /* Only allow changes while the adapter is down */
3803 if (test_bit(HCI_UP, &data->hdev->flags))
3804 return -EPERM;
3805
3806 if (data->poll_sync == enable)
3807 return -EALREADY;
3808
3809 data->poll_sync = enable;
3810
3811 return count;
3812}
3813
3814static const struct file_operations force_poll_sync_fops = {
3815 .open = simple_open,
3816 .read = force_poll_sync_read,
3817 .write = force_poll_sync_write,
3818 .llseek = default_llseek,
3819};
3820
3821static int btusb_probe(struct usb_interface *intf,
3822 const struct usb_device_id *id)
3823{
3824 struct usb_endpoint_descriptor *ep_desc;
3825 struct gpio_desc *reset_gpio;
3826 struct btusb_data *data;
3827 struct hci_dev *hdev;
3828 unsigned ifnum_base;
3829 int i, err, priv_size;
3830
3831 BT_DBG("intf %p id %p", intf, id);
3832
3833 /* interface numbers are hardcoded in the spec */
3834 if (intf->cur_altsetting->desc.bInterfaceNumber != 0) {
3835 if (!(id->driver_info & BTUSB_IFNUM_2))
3836 return -ENODEV;
3837 if (intf->cur_altsetting->desc.bInterfaceNumber != 2)
3838 return -ENODEV;
3839 }
3840
3841 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber;
3842
3843 if (!id->driver_info) {
3844 const struct usb_device_id *match;
3845
3846 match = usb_match_id(intf, blacklist_table);
3847 if (match)
3848 id = match;
3849 }
3850
3851 if (id->driver_info == BTUSB_IGNORE)
3852 return -ENODEV;
3853
3854 if (id->driver_info & BTUSB_ATH3012) {
3855 struct usb_device *udev = interface_to_usbdev(intf);
3856
3857 /* Old firmware would otherwise let ath3k driver load
3858 * patch and sysconfig files
3859 */
3860 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 &&
3861 !btusb_qca_need_patch(udev))
3862 return -ENODEV;
3863 }
3864
3865 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
3866 if (!data)
3867 return -ENOMEM;
3868
3869 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
3870 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
3871
3872 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
3873 data->intr_ep = ep_desc;
3874 continue;
3875 }
3876
3877 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
3878 data->bulk_tx_ep = ep_desc;
3879 continue;
3880 }
3881
3882 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
3883 data->bulk_rx_ep = ep_desc;
3884 continue;
3885 }
3886 }
3887
3888 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
3889 return -ENODEV;
3890
3891 if (id->driver_info & BTUSB_AMP) {
3892 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
3893 data->cmdreq = 0x2b;
3894 } else {
3895 data->cmdreq_type = USB_TYPE_CLASS;
3896 data->cmdreq = 0x00;
3897 }
3898
3899 data->udev = interface_to_usbdev(intf);
3900 data->intf = intf;
3901
3902 INIT_WORK(&data->work, btusb_work);
3903 INIT_WORK(&data->waker, btusb_waker);
3904 INIT_DELAYED_WORK(&data->rx_work, btusb_rx_work);
3905
3906 skb_queue_head_init(&data->acl_q);
3907
3908 init_usb_anchor(&data->deferred);
3909 init_usb_anchor(&data->tx_anchor);
3910 spin_lock_init(&data->txlock);
3911
3912 init_usb_anchor(&data->intr_anchor);
3913 init_usb_anchor(&data->bulk_anchor);
3914 init_usb_anchor(&data->isoc_anchor);
3915 init_usb_anchor(&data->diag_anchor);
3916 init_usb_anchor(&data->ctrl_anchor);
3917 spin_lock_init(&data->rxlock);
3918
3919 priv_size = 0;
3920
3921 data->recv_event = hci_recv_frame;
3922 data->recv_bulk = btusb_recv_bulk;
3923
3924 if (id->driver_info & BTUSB_INTEL_COMBINED) {
3925 /* Allocate extra space for Intel device */
3926 priv_size += sizeof(struct btintel_data);
3927
3928 /* Override the rx handlers */
3929 data->recv_event = btusb_recv_event_intel;
3930 data->recv_bulk = btusb_recv_bulk_intel;
3931 } else if (id->driver_info & BTUSB_REALTEK) {
3932 /* Allocate extra space for Realtek device */
3933 priv_size += sizeof(struct btrealtek_data);
3934 }
3935
3936 data->recv_acl = hci_recv_frame;
3937
3938 hdev = hci_alloc_dev_priv(priv_size);
3939 if (!hdev)
3940 return -ENOMEM;
3941
3942 hdev->bus = HCI_USB;
3943 hci_set_drvdata(hdev, data);
3944
3945 if (id->driver_info & BTUSB_AMP)
3946 hdev->dev_type = HCI_AMP;
3947 else
3948 hdev->dev_type = HCI_PRIMARY;
3949
3950 data->hdev = hdev;
3951
3952 SET_HCIDEV_DEV(hdev, &intf->dev);
3953
3954 reset_gpio = gpiod_get_optional(&data->udev->dev, "reset",
3955 GPIOD_OUT_LOW);
3956 if (IS_ERR(reset_gpio)) {
3957 err = PTR_ERR(reset_gpio);
3958 goto out_free_dev;
3959 } else if (reset_gpio) {
3960 data->reset_gpio = reset_gpio;
3961 }
3962
3963 hdev->open = btusb_open;
3964 hdev->close = btusb_close;
3965 hdev->flush = btusb_flush;
3966 hdev->send = btusb_send_frame;
3967 hdev->notify = btusb_notify;
3968 hdev->wakeup = btusb_wakeup;
3969
3970#ifdef CONFIG_PM
3971 err = btusb_config_oob_wake(hdev);
3972 if (err)
3973 goto out_free_dev;
3974
3975 /* Marvell devices may need a specific chip configuration */
3976 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) {
3977 err = marvell_config_oob_wake(hdev);
3978 if (err)
3979 goto out_free_dev;
3980 }
3981#endif
3982 if (id->driver_info & BTUSB_CW6622)
3983 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
3984
3985 if (id->driver_info & BTUSB_BCM2045)
3986 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
3987
3988 if (id->driver_info & BTUSB_BCM92035)
3989 hdev->setup = btusb_setup_bcm92035;
3990
3991 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
3992 (id->driver_info & BTUSB_BCM_PATCHRAM)) {
3993 hdev->manufacturer = 15;
3994 hdev->setup = btbcm_setup_patchram;
3995 hdev->set_diag = btusb_bcm_set_diag;
3996 hdev->set_bdaddr = btbcm_set_bdaddr;
3997
3998 /* Broadcom LM_DIAG Interface numbers are hardcoded */
3999 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
4000 }
4001
4002 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
4003 (id->driver_info & BTUSB_BCM_APPLE)) {
4004 hdev->manufacturer = 15;
4005 hdev->setup = btbcm_setup_apple;
4006 hdev->set_diag = btusb_bcm_set_diag;
4007
4008 /* Broadcom LM_DIAG Interface numbers are hardcoded */
4009 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
4010 }
4011
4012 /* Combined Intel Device setup to support multiple setup routine */
4013 if (id->driver_info & BTUSB_INTEL_COMBINED) {
4014 err = btintel_configure_setup(hdev);
4015 if (err)
4016 goto out_free_dev;
4017
4018 /* Transport specific configuration */
4019 hdev->send = btusb_send_frame_intel;
4020 hdev->cmd_timeout = btusb_intel_cmd_timeout;
4021
4022 if (id->driver_info & BTUSB_INTEL_NO_WBS_SUPPORT)
4023 btintel_set_flag(hdev, INTEL_ROM_LEGACY_NO_WBS_SUPPORT);
4024
4025 if (id->driver_info & BTUSB_INTEL_BROKEN_INITIAL_NCMD)
4026 btintel_set_flag(hdev, INTEL_BROKEN_INITIAL_NCMD);
4027
4028 if (id->driver_info & BTUSB_INTEL_BROKEN_SHUTDOWN_LED)
4029 btintel_set_flag(hdev, INTEL_BROKEN_SHUTDOWN_LED);
4030 }
4031
4032 if (id->driver_info & BTUSB_MARVELL)
4033 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
4034
4035 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_MTK) &&
4036 (id->driver_info & BTUSB_MEDIATEK)) {
4037 hdev->setup = btusb_mtk_setup;
4038 hdev->shutdown = btusb_mtk_shutdown;
4039 hdev->manufacturer = 70;
4040 hdev->cmd_timeout = btusb_mtk_cmd_timeout;
4041 hdev->set_bdaddr = btmtk_set_bdaddr;
4042 set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks);
4043 set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
4044 data->recv_acl = btusb_recv_acl_mtk;
4045 }
4046
4047 if (id->driver_info & BTUSB_SWAVE) {
4048 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
4049 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
4050 }
4051
4052 if (id->driver_info & BTUSB_INTEL_BOOT) {
4053 hdev->manufacturer = 2;
4054 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
4055 }
4056
4057 if (id->driver_info & BTUSB_ATH3012) {
4058 data->setup_on_usb = btusb_setup_qca;
4059 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
4060 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4061 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
4062 }
4063
4064 if (id->driver_info & BTUSB_QCA_ROME) {
4065 data->setup_on_usb = btusb_setup_qca;
4066 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
4067 hdev->cmd_timeout = btusb_qca_cmd_timeout;
4068 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4069 btusb_check_needs_reset_resume(intf);
4070 }
4071
4072 if (id->driver_info & BTUSB_QCA_WCN6855) {
4073 data->setup_on_usb = btusb_setup_qca;
4074 hdev->shutdown = btusb_shutdown_qca;
4075 hdev->set_bdaddr = btusb_set_bdaddr_wcn6855;
4076 hdev->cmd_timeout = btusb_qca_cmd_timeout;
4077 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4078 hci_set_msft_opcode(hdev, 0xFD70);
4079 }
4080
4081 if (id->driver_info & BTUSB_AMP) {
4082 /* AMP controllers do not support SCO packets */
4083 data->isoc = NULL;
4084 } else {
4085 /* Interface orders are hardcoded in the specification */
4086 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1);
4087 data->isoc_ifnum = ifnum_base + 1;
4088 }
4089
4090 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_RTL) &&
4091 (id->driver_info & BTUSB_REALTEK)) {
4092 hdev->setup = btusb_setup_realtek;
4093 hdev->shutdown = btrtl_shutdown_realtek;
4094 hdev->cmd_timeout = btusb_rtl_cmd_timeout;
4095
4096 /* Realtek devices need to set remote wakeup on auto-suspend */
4097 set_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags);
4098 set_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags);
4099 }
4100
4101 if (!reset)
4102 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
4103
4104 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
4105 if (!disable_scofix)
4106 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
4107 }
4108
4109 if (id->driver_info & BTUSB_BROKEN_ISOC)
4110 data->isoc = NULL;
4111
4112 if (id->driver_info & BTUSB_WIDEBAND_SPEECH)
4113 set_bit(HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED, &hdev->quirks);
4114
4115 if (id->driver_info & BTUSB_VALID_LE_STATES)
4116 set_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks);
4117
4118 if (id->driver_info & BTUSB_DIGIANSWER) {
4119 data->cmdreq_type = USB_TYPE_VENDOR;
4120 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
4121 }
4122
4123 if (id->driver_info & BTUSB_CSR) {
4124 struct usb_device *udev = data->udev;
4125 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
4126
4127 /* Old firmware would otherwise execute USB reset */
4128 if (bcdDevice < 0x117)
4129 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
4130
4131 /* This must be set first in case we disable it for fakes */
4132 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4133
4134 /* Fake CSR devices with broken commands */
4135 if (le16_to_cpu(udev->descriptor.idVendor) == 0x0a12 &&
4136 le16_to_cpu(udev->descriptor.idProduct) == 0x0001)
4137 hdev->setup = btusb_setup_csr;
4138 }
4139
4140 if (id->driver_info & BTUSB_SNIFFER) {
4141 struct usb_device *udev = data->udev;
4142
4143 /* New sniffer firmware has crippled HCI interface */
4144 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
4145 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
4146 }
4147
4148 if (id->driver_info & BTUSB_INTEL_BOOT) {
4149 /* A bug in the bootloader causes that interrupt interface is
4150 * only enabled after receiving SetInterface(0, AltSetting=0).
4151 */
4152 err = usb_set_interface(data->udev, 0, 0);
4153 if (err < 0) {
4154 BT_ERR("failed to set interface 0, alt 0 %d", err);
4155 goto out_free_dev;
4156 }
4157 }
4158
4159 if (data->isoc) {
4160 err = usb_driver_claim_interface(&btusb_driver,
4161 data->isoc, data);
4162 if (err < 0)
4163 goto out_free_dev;
4164 }
4165
4166 if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && data->diag) {
4167 if (!usb_driver_claim_interface(&btusb_driver,
4168 data->diag, data))
4169 __set_diag_interface(hdev);
4170 else
4171 data->diag = NULL;
4172 }
4173
4174 if (enable_autosuspend)
4175 usb_enable_autosuspend(data->udev);
4176
4177 data->poll_sync = enable_poll_sync;
4178
4179 err = hci_register_dev(hdev);
4180 if (err < 0)
4181 goto out_free_dev;
4182
4183 usb_set_intfdata(intf, data);
4184
4185 debugfs_create_file("force_poll_sync", 0644, hdev->debugfs, data,
4186 &force_poll_sync_fops);
4187
4188 return 0;
4189
4190out_free_dev:
4191 if (data->reset_gpio)
4192 gpiod_put(data->reset_gpio);
4193 hci_free_dev(hdev);
4194 return err;
4195}
4196
4197static void btusb_disconnect(struct usb_interface *intf)
4198{
4199 struct btusb_data *data = usb_get_intfdata(intf);
4200 struct hci_dev *hdev;
4201
4202 BT_DBG("intf %p", intf);
4203
4204 if (!data)
4205 return;
4206
4207 hdev = data->hdev;
4208 usb_set_intfdata(data->intf, NULL);
4209
4210 if (data->isoc)
4211 usb_set_intfdata(data->isoc, NULL);
4212
4213 if (data->diag)
4214 usb_set_intfdata(data->diag, NULL);
4215
4216 hci_unregister_dev(hdev);
4217
4218 if (intf == data->intf) {
4219 if (data->isoc)
4220 usb_driver_release_interface(&btusb_driver, data->isoc);
4221 if (data->diag)
4222 usb_driver_release_interface(&btusb_driver, data->diag);
4223 } else if (intf == data->isoc) {
4224 if (data->diag)
4225 usb_driver_release_interface(&btusb_driver, data->diag);
4226 usb_driver_release_interface(&btusb_driver, data->intf);
4227 } else if (intf == data->diag) {
4228 usb_driver_release_interface(&btusb_driver, data->intf);
4229 if (data->isoc)
4230 usb_driver_release_interface(&btusb_driver, data->isoc);
4231 }
4232
4233 if (data->oob_wake_irq)
4234 device_init_wakeup(&data->udev->dev, false);
4235
4236 if (data->reset_gpio)
4237 gpiod_put(data->reset_gpio);
4238
4239 hci_free_dev(hdev);
4240}
4241
4242#ifdef CONFIG_PM
4243static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
4244{
4245 struct btusb_data *data = usb_get_intfdata(intf);
4246
4247 BT_DBG("intf %p", intf);
4248
4249 if (data->suspend_count++)
4250 return 0;
4251
4252 spin_lock_irq(&data->txlock);
4253 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
4254 set_bit(BTUSB_SUSPENDING, &data->flags);
4255 spin_unlock_irq(&data->txlock);
4256 } else {
4257 spin_unlock_irq(&data->txlock);
4258 data->suspend_count--;
4259 return -EBUSY;
4260 }
4261
4262 cancel_work_sync(&data->work);
4263
4264 btusb_stop_traffic(data);
4265 usb_kill_anchored_urbs(&data->tx_anchor);
4266
4267 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) {
4268 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
4269 enable_irq_wake(data->oob_wake_irq);
4270 enable_irq(data->oob_wake_irq);
4271 }
4272
4273 /* For global suspend, Realtek devices lose the loaded fw
4274 * in them. But for autosuspend, firmware should remain.
4275 * Actually, it depends on whether the usb host sends
4276 * set feature (enable wakeup) or not.
4277 */
4278 if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) {
4279 if (PMSG_IS_AUTO(message) &&
4280 device_can_wakeup(&data->udev->dev))
4281 data->udev->do_remote_wakeup = 1;
4282 else if (!PMSG_IS_AUTO(message) &&
4283 !device_may_wakeup(&data->udev->dev)) {
4284 data->udev->do_remote_wakeup = 0;
4285 data->udev->reset_resume = 1;
4286 }
4287 }
4288
4289 return 0;
4290}
4291
4292static void play_deferred(struct btusb_data *data)
4293{
4294 struct urb *urb;
4295 int err;
4296
4297 while ((urb = usb_get_from_anchor(&data->deferred))) {
4298 usb_anchor_urb(urb, &data->tx_anchor);
4299
4300 err = usb_submit_urb(urb, GFP_ATOMIC);
4301 if (err < 0) {
4302 if (err != -EPERM && err != -ENODEV)
4303 BT_ERR("%s urb %p submission failed (%d)",
4304 data->hdev->name, urb, -err);
4305 kfree(urb->setup_packet);
4306 usb_unanchor_urb(urb);
4307 usb_free_urb(urb);
4308 break;
4309 }
4310
4311 data->tx_in_flight++;
4312 usb_free_urb(urb);
4313 }
4314
4315 /* Cleanup the rest deferred urbs. */
4316 while ((urb = usb_get_from_anchor(&data->deferred))) {
4317 kfree(urb->setup_packet);
4318 usb_free_urb(urb);
4319 }
4320}
4321
4322static int btusb_resume(struct usb_interface *intf)
4323{
4324 struct btusb_data *data = usb_get_intfdata(intf);
4325 struct hci_dev *hdev = data->hdev;
4326 int err = 0;
4327
4328 BT_DBG("intf %p", intf);
4329
4330 if (--data->suspend_count)
4331 return 0;
4332
4333 /* Disable only if not already disabled (keep it balanced) */
4334 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
4335 disable_irq(data->oob_wake_irq);
4336 disable_irq_wake(data->oob_wake_irq);
4337 }
4338
4339 if (!test_bit(HCI_RUNNING, &hdev->flags))
4340 goto done;
4341
4342 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
4343 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
4344 if (err < 0) {
4345 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
4346 goto failed;
4347 }
4348 }
4349
4350 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
4351 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
4352 if (err < 0) {
4353 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
4354 goto failed;
4355 }
4356
4357 btusb_submit_bulk_urb(hdev, GFP_NOIO);
4358 }
4359
4360 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
4361 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
4362 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
4363 else
4364 btusb_submit_isoc_urb(hdev, GFP_NOIO);
4365 }
4366
4367 spin_lock_irq(&data->txlock);
4368 play_deferred(data);
4369 clear_bit(BTUSB_SUSPENDING, &data->flags);
4370 spin_unlock_irq(&data->txlock);
4371 schedule_work(&data->work);
4372
4373 return 0;
4374
4375failed:
4376 usb_scuttle_anchored_urbs(&data->deferred);
4377done:
4378 spin_lock_irq(&data->txlock);
4379 clear_bit(BTUSB_SUSPENDING, &data->flags);
4380 spin_unlock_irq(&data->txlock);
4381
4382 return err;
4383}
4384#endif
4385
4386static struct usb_driver btusb_driver = {
4387 .name = "btusb",
4388 .probe = btusb_probe,
4389 .disconnect = btusb_disconnect,
4390#ifdef CONFIG_PM
4391 .suspend = btusb_suspend,
4392 .resume = btusb_resume,
4393#endif
4394 .id_table = btusb_table,
4395 .supports_autosuspend = 1,
4396 .disable_hub_initiated_lpm = 1,
4397};
4398
4399module_usb_driver(btusb_driver);
4400
4401module_param(disable_scofix, bool, 0644);
4402MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
4403
4404module_param(force_scofix, bool, 0644);
4405MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
4406
4407module_param(enable_autosuspend, bool, 0644);
4408MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default");
4409
4410module_param(reset, bool, 0644);
4411MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
4412
4413MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
4414MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
4415MODULE_VERSION(VERSION);
4416MODULE_LICENSE("GPL");
1/*
2 *
3 * Generic Bluetooth USB driver
4 *
5 * Copyright (C) 2005-2008 Marcel Holtmann <marcel@holtmann.org>
6 *
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 *
22 */
23
24#include <linux/module.h>
25#include <linux/usb.h>
26#include <linux/firmware.h>
27#include <asm/unaligned.h>
28
29#include <net/bluetooth/bluetooth.h>
30#include <net/bluetooth/hci_core.h>
31
32#include "btintel.h"
33#include "btbcm.h"
34#include "btrtl.h"
35
36#define VERSION "0.8"
37
38static bool disable_scofix;
39static bool force_scofix;
40
41static bool reset = true;
42
43static struct usb_driver btusb_driver;
44
45#define BTUSB_IGNORE 0x01
46#define BTUSB_DIGIANSWER 0x02
47#define BTUSB_CSR 0x04
48#define BTUSB_SNIFFER 0x08
49#define BTUSB_BCM92035 0x10
50#define BTUSB_BROKEN_ISOC 0x20
51#define BTUSB_WRONG_SCO_MTU 0x40
52#define BTUSB_ATH3012 0x80
53#define BTUSB_INTEL 0x100
54#define BTUSB_INTEL_BOOT 0x200
55#define BTUSB_BCM_PATCHRAM 0x400
56#define BTUSB_MARVELL 0x800
57#define BTUSB_SWAVE 0x1000
58#define BTUSB_INTEL_NEW 0x2000
59#define BTUSB_AMP 0x4000
60#define BTUSB_QCA_ROME 0x8000
61#define BTUSB_BCM_APPLE 0x10000
62#define BTUSB_REALTEK 0x20000
63#define BTUSB_BCM2045 0x40000
64#define BTUSB_IFNUM_2 0x80000
65
66static const struct usb_device_id btusb_table[] = {
67 /* Generic Bluetooth USB device */
68 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
69
70 /* Generic Bluetooth AMP device */
71 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP },
72
73 /* Generic Bluetooth USB interface */
74 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) },
75
76 /* Apple-specific (Broadcom) devices */
77 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01),
78 .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 },
79
80 /* MediaTek MT76x0E */
81 { USB_DEVICE(0x0e8d, 0x763f) },
82
83 /* Broadcom SoftSailing reporting vendor specific */
84 { USB_DEVICE(0x0a5c, 0x21e1) },
85
86 /* Apple MacBookPro 7,1 */
87 { USB_DEVICE(0x05ac, 0x8213) },
88
89 /* Apple iMac11,1 */
90 { USB_DEVICE(0x05ac, 0x8215) },
91
92 /* Apple MacBookPro6,2 */
93 { USB_DEVICE(0x05ac, 0x8218) },
94
95 /* Apple MacBookAir3,1, MacBookAir3,2 */
96 { USB_DEVICE(0x05ac, 0x821b) },
97
98 /* Apple MacBookAir4,1 */
99 { USB_DEVICE(0x05ac, 0x821f) },
100
101 /* Apple MacBookPro8,2 */
102 { USB_DEVICE(0x05ac, 0x821a) },
103
104 /* Apple MacMini5,1 */
105 { USB_DEVICE(0x05ac, 0x8281) },
106
107 /* AVM BlueFRITZ! USB v2.0 */
108 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE },
109
110 /* Bluetooth Ultraport Module from IBM */
111 { USB_DEVICE(0x04bf, 0x030a) },
112
113 /* ALPS Modules with non-standard id */
114 { USB_DEVICE(0x044e, 0x3001) },
115 { USB_DEVICE(0x044e, 0x3002) },
116
117 /* Ericsson with non-standard id */
118 { USB_DEVICE(0x0bdb, 0x1002) },
119
120 /* Canyon CN-BTU1 with HID interfaces */
121 { USB_DEVICE(0x0c10, 0x0000) },
122
123 /* Broadcom BCM20702A0 */
124 { USB_DEVICE(0x413c, 0x8197) },
125
126 /* Broadcom BCM20702B0 (Dynex/Insignia) */
127 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM },
128
129 /* Broadcom BCM43142A0 (Foxconn/Lenovo) */
130 { USB_DEVICE(0x105b, 0xe065), .driver_info = BTUSB_BCM_PATCHRAM },
131
132 /* Foxconn - Hon Hai */
133 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01),
134 .driver_info = BTUSB_BCM_PATCHRAM },
135
136 /* Lite-On Technology - Broadcom based */
137 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01),
138 .driver_info = BTUSB_BCM_PATCHRAM },
139
140 /* Broadcom devices with vendor specific id */
141 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01),
142 .driver_info = BTUSB_BCM_PATCHRAM },
143
144 /* ASUSTek Computer - Broadcom based */
145 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01),
146 .driver_info = BTUSB_BCM_PATCHRAM },
147
148 /* Belkin F8065bf - Broadcom based */
149 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01),
150 .driver_info = BTUSB_BCM_PATCHRAM },
151
152 /* IMC Networks - Broadcom based */
153 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01),
154 .driver_info = BTUSB_BCM_PATCHRAM },
155
156 /* Toshiba Corp - Broadcom based */
157 { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01),
158 .driver_info = BTUSB_BCM_PATCHRAM },
159
160 /* Intel Bluetooth USB Bootloader (RAM module) */
161 { USB_DEVICE(0x8087, 0x0a5a),
162 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
163
164 { } /* Terminating entry */
165};
166
167MODULE_DEVICE_TABLE(usb, btusb_table);
168
169static const struct usb_device_id blacklist_table[] = {
170 /* CSR BlueCore devices */
171 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
172
173 /* Broadcom BCM2033 without firmware */
174 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
175
176 /* Broadcom BCM2045 devices */
177 { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 },
178
179 /* Atheros 3011 with sflash firmware */
180 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
181 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
182 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE },
183 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
184 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
185 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
186 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
187
188 /* Atheros AR9285 Malbec with sflash firmware */
189 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
190
191 /* Atheros 3012 with sflash firmware */
192 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
193 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
194 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
195 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
196 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
197 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
198 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
199 { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 },
200 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
201 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
202 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
203 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
204 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
205 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
206 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
207 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
208 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
209 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
210 { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 },
211 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
212 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
213 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
214 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
215 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
216 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
217 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
218 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
219 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
220 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
221 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
222 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
223 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
224 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 },
225 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
226 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
227 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
228 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
229 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
230 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
231 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
232 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 },
233 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
234 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
235 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
236 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
237 { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 },
238 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
239
240 /* Atheros AR5BBU12 with sflash firmware */
241 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
242
243 /* Atheros AR5BBU12 with sflash firmware */
244 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
245 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
246
247 /* QCA ROME chipset */
248 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME },
249 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME },
250 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME },
251
252 /* Broadcom BCM2035 */
253 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
254 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
255 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
256
257 /* Broadcom BCM2045 */
258 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
259 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
260
261 /* IBM/Lenovo ThinkPad with Broadcom chip */
262 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
263 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
264
265 /* HP laptop with Broadcom chip */
266 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
267
268 /* Dell laptop with Broadcom chip */
269 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
270
271 /* Dell Wireless 370 and 410 devices */
272 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
273 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
274
275 /* Belkin F8T012 and F8T013 devices */
276 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
277 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
278
279 /* Asus WL-BTD202 device */
280 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
281
282 /* Kensington Bluetooth USB adapter */
283 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
284
285 /* RTX Telecom based adapters with buggy SCO support */
286 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
287 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
288
289 /* CONWISE Technology based adapters with buggy SCO support */
290 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
291
292 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
293 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE },
294
295 /* Digianswer devices */
296 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
297 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
298
299 /* CSR BlueCore Bluetooth Sniffer */
300 { USB_DEVICE(0x0a12, 0x0002),
301 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
302
303 /* Frontline ComProbe Bluetooth Sniffer */
304 { USB_DEVICE(0x16d3, 0x0002),
305 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
306
307 /* Marvell Bluetooth devices */
308 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
309 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
310
311 /* Intel Bluetooth devices */
312 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
313 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
314 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL },
315 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_NEW },
316
317 /* Other Intel Bluetooth devices */
318 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
319 .driver_info = BTUSB_IGNORE },
320
321 /* Realtek Bluetooth devices */
322 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
323 .driver_info = BTUSB_REALTEK },
324
325 /* Additional Realtek 8723AE Bluetooth devices */
326 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
327 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
328
329 /* Additional Realtek 8723BE Bluetooth devices */
330 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
331 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
332 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
333 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
334 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
335
336 /* Additional Realtek 8821AE Bluetooth devices */
337 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
338 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
339 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
340 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
341 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
342
343 /* Silicon Wave based devices */
344 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE },
345
346 { } /* Terminating entry */
347};
348
349#define BTUSB_MAX_ISOC_FRAMES 10
350
351#define BTUSB_INTR_RUNNING 0
352#define BTUSB_BULK_RUNNING 1
353#define BTUSB_ISOC_RUNNING 2
354#define BTUSB_SUSPENDING 3
355#define BTUSB_DID_ISO_RESUME 4
356#define BTUSB_BOOTLOADER 5
357#define BTUSB_DOWNLOADING 6
358#define BTUSB_FIRMWARE_LOADED 7
359#define BTUSB_FIRMWARE_FAILED 8
360#define BTUSB_BOOTING 9
361#define BTUSB_RESET_RESUME 10
362#define BTUSB_DIAG_RUNNING 11
363
364struct btusb_data {
365 struct hci_dev *hdev;
366 struct usb_device *udev;
367 struct usb_interface *intf;
368 struct usb_interface *isoc;
369 struct usb_interface *diag;
370
371 unsigned long flags;
372
373 struct work_struct work;
374 struct work_struct waker;
375
376 struct usb_anchor deferred;
377 struct usb_anchor tx_anchor;
378 int tx_in_flight;
379 spinlock_t txlock;
380
381 struct usb_anchor intr_anchor;
382 struct usb_anchor bulk_anchor;
383 struct usb_anchor isoc_anchor;
384 struct usb_anchor diag_anchor;
385 spinlock_t rxlock;
386
387 struct sk_buff *evt_skb;
388 struct sk_buff *acl_skb;
389 struct sk_buff *sco_skb;
390
391 struct usb_endpoint_descriptor *intr_ep;
392 struct usb_endpoint_descriptor *bulk_tx_ep;
393 struct usb_endpoint_descriptor *bulk_rx_ep;
394 struct usb_endpoint_descriptor *isoc_tx_ep;
395 struct usb_endpoint_descriptor *isoc_rx_ep;
396 struct usb_endpoint_descriptor *diag_tx_ep;
397 struct usb_endpoint_descriptor *diag_rx_ep;
398
399 __u8 cmdreq_type;
400 __u8 cmdreq;
401
402 unsigned int sco_num;
403 int isoc_altsetting;
404 int suspend_count;
405
406 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
407 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
408
409 int (*setup_on_usb)(struct hci_dev *hdev);
410};
411
412static inline void btusb_free_frags(struct btusb_data *data)
413{
414 unsigned long flags;
415
416 spin_lock_irqsave(&data->rxlock, flags);
417
418 kfree_skb(data->evt_skb);
419 data->evt_skb = NULL;
420
421 kfree_skb(data->acl_skb);
422 data->acl_skb = NULL;
423
424 kfree_skb(data->sco_skb);
425 data->sco_skb = NULL;
426
427 spin_unlock_irqrestore(&data->rxlock, flags);
428}
429
430static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
431{
432 struct sk_buff *skb;
433 int err = 0;
434
435 spin_lock(&data->rxlock);
436 skb = data->evt_skb;
437
438 while (count) {
439 int len;
440
441 if (!skb) {
442 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
443 if (!skb) {
444 err = -ENOMEM;
445 break;
446 }
447
448 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
449 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE;
450 }
451
452 len = min_t(uint, hci_skb_expect(skb), count);
453 memcpy(skb_put(skb, len), buffer, len);
454
455 count -= len;
456 buffer += len;
457 hci_skb_expect(skb) -= len;
458
459 if (skb->len == HCI_EVENT_HDR_SIZE) {
460 /* Complete event header */
461 hci_skb_expect(skb) = hci_event_hdr(skb)->plen;
462
463 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
464 kfree_skb(skb);
465 skb = NULL;
466
467 err = -EILSEQ;
468 break;
469 }
470 }
471
472 if (!hci_skb_expect(skb)) {
473 /* Complete frame */
474 data->recv_event(data->hdev, skb);
475 skb = NULL;
476 }
477 }
478
479 data->evt_skb = skb;
480 spin_unlock(&data->rxlock);
481
482 return err;
483}
484
485static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
486{
487 struct sk_buff *skb;
488 int err = 0;
489
490 spin_lock(&data->rxlock);
491 skb = data->acl_skb;
492
493 while (count) {
494 int len;
495
496 if (!skb) {
497 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
498 if (!skb) {
499 err = -ENOMEM;
500 break;
501 }
502
503 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT;
504 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE;
505 }
506
507 len = min_t(uint, hci_skb_expect(skb), count);
508 memcpy(skb_put(skb, len), buffer, len);
509
510 count -= len;
511 buffer += len;
512 hci_skb_expect(skb) -= len;
513
514 if (skb->len == HCI_ACL_HDR_SIZE) {
515 __le16 dlen = hci_acl_hdr(skb)->dlen;
516
517 /* Complete ACL header */
518 hci_skb_expect(skb) = __le16_to_cpu(dlen);
519
520 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
521 kfree_skb(skb);
522 skb = NULL;
523
524 err = -EILSEQ;
525 break;
526 }
527 }
528
529 if (!hci_skb_expect(skb)) {
530 /* Complete frame */
531 hci_recv_frame(data->hdev, skb);
532 skb = NULL;
533 }
534 }
535
536 data->acl_skb = skb;
537 spin_unlock(&data->rxlock);
538
539 return err;
540}
541
542static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
543{
544 struct sk_buff *skb;
545 int err = 0;
546
547 spin_lock(&data->rxlock);
548 skb = data->sco_skb;
549
550 while (count) {
551 int len;
552
553 if (!skb) {
554 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
555 if (!skb) {
556 err = -ENOMEM;
557 break;
558 }
559
560 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT;
561 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE;
562 }
563
564 len = min_t(uint, hci_skb_expect(skb), count);
565 memcpy(skb_put(skb, len), buffer, len);
566
567 count -= len;
568 buffer += len;
569 hci_skb_expect(skb) -= len;
570
571 if (skb->len == HCI_SCO_HDR_SIZE) {
572 /* Complete SCO header */
573 hci_skb_expect(skb) = hci_sco_hdr(skb)->dlen;
574
575 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
576 kfree_skb(skb);
577 skb = NULL;
578
579 err = -EILSEQ;
580 break;
581 }
582 }
583
584 if (!hci_skb_expect(skb)) {
585 /* Complete frame */
586 hci_recv_frame(data->hdev, skb);
587 skb = NULL;
588 }
589 }
590
591 data->sco_skb = skb;
592 spin_unlock(&data->rxlock);
593
594 return err;
595}
596
597static void btusb_intr_complete(struct urb *urb)
598{
599 struct hci_dev *hdev = urb->context;
600 struct btusb_data *data = hci_get_drvdata(hdev);
601 int err;
602
603 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
604 urb->actual_length);
605
606 if (!test_bit(HCI_RUNNING, &hdev->flags))
607 return;
608
609 if (urb->status == 0) {
610 hdev->stat.byte_rx += urb->actual_length;
611
612 if (btusb_recv_intr(data, urb->transfer_buffer,
613 urb->actual_length) < 0) {
614 BT_ERR("%s corrupted event packet", hdev->name);
615 hdev->stat.err_rx++;
616 }
617 } else if (urb->status == -ENOENT) {
618 /* Avoid suspend failed when usb_kill_urb */
619 return;
620 }
621
622 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
623 return;
624
625 usb_mark_last_busy(data->udev);
626 usb_anchor_urb(urb, &data->intr_anchor);
627
628 err = usb_submit_urb(urb, GFP_ATOMIC);
629 if (err < 0) {
630 /* -EPERM: urb is being killed;
631 * -ENODEV: device got disconnected */
632 if (err != -EPERM && err != -ENODEV)
633 BT_ERR("%s urb %p failed to resubmit (%d)",
634 hdev->name, urb, -err);
635 usb_unanchor_urb(urb);
636 }
637}
638
639static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
640{
641 struct btusb_data *data = hci_get_drvdata(hdev);
642 struct urb *urb;
643 unsigned char *buf;
644 unsigned int pipe;
645 int err, size;
646
647 BT_DBG("%s", hdev->name);
648
649 if (!data->intr_ep)
650 return -ENODEV;
651
652 urb = usb_alloc_urb(0, mem_flags);
653 if (!urb)
654 return -ENOMEM;
655
656 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
657
658 buf = kmalloc(size, mem_flags);
659 if (!buf) {
660 usb_free_urb(urb);
661 return -ENOMEM;
662 }
663
664 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
665
666 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
667 btusb_intr_complete, hdev, data->intr_ep->bInterval);
668
669 urb->transfer_flags |= URB_FREE_BUFFER;
670
671 usb_anchor_urb(urb, &data->intr_anchor);
672
673 err = usb_submit_urb(urb, mem_flags);
674 if (err < 0) {
675 if (err != -EPERM && err != -ENODEV)
676 BT_ERR("%s urb %p submission failed (%d)",
677 hdev->name, urb, -err);
678 usb_unanchor_urb(urb);
679 }
680
681 usb_free_urb(urb);
682
683 return err;
684}
685
686static void btusb_bulk_complete(struct urb *urb)
687{
688 struct hci_dev *hdev = urb->context;
689 struct btusb_data *data = hci_get_drvdata(hdev);
690 int err;
691
692 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
693 urb->actual_length);
694
695 if (!test_bit(HCI_RUNNING, &hdev->flags))
696 return;
697
698 if (urb->status == 0) {
699 hdev->stat.byte_rx += urb->actual_length;
700
701 if (data->recv_bulk(data, urb->transfer_buffer,
702 urb->actual_length) < 0) {
703 BT_ERR("%s corrupted ACL packet", hdev->name);
704 hdev->stat.err_rx++;
705 }
706 } else if (urb->status == -ENOENT) {
707 /* Avoid suspend failed when usb_kill_urb */
708 return;
709 }
710
711 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
712 return;
713
714 usb_anchor_urb(urb, &data->bulk_anchor);
715 usb_mark_last_busy(data->udev);
716
717 err = usb_submit_urb(urb, GFP_ATOMIC);
718 if (err < 0) {
719 /* -EPERM: urb is being killed;
720 * -ENODEV: device got disconnected */
721 if (err != -EPERM && err != -ENODEV)
722 BT_ERR("%s urb %p failed to resubmit (%d)",
723 hdev->name, urb, -err);
724 usb_unanchor_urb(urb);
725 }
726}
727
728static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
729{
730 struct btusb_data *data = hci_get_drvdata(hdev);
731 struct urb *urb;
732 unsigned char *buf;
733 unsigned int pipe;
734 int err, size = HCI_MAX_FRAME_SIZE;
735
736 BT_DBG("%s", hdev->name);
737
738 if (!data->bulk_rx_ep)
739 return -ENODEV;
740
741 urb = usb_alloc_urb(0, mem_flags);
742 if (!urb)
743 return -ENOMEM;
744
745 buf = kmalloc(size, mem_flags);
746 if (!buf) {
747 usb_free_urb(urb);
748 return -ENOMEM;
749 }
750
751 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
752
753 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
754 btusb_bulk_complete, hdev);
755
756 urb->transfer_flags |= URB_FREE_BUFFER;
757
758 usb_mark_last_busy(data->udev);
759 usb_anchor_urb(urb, &data->bulk_anchor);
760
761 err = usb_submit_urb(urb, mem_flags);
762 if (err < 0) {
763 if (err != -EPERM && err != -ENODEV)
764 BT_ERR("%s urb %p submission failed (%d)",
765 hdev->name, urb, -err);
766 usb_unanchor_urb(urb);
767 }
768
769 usb_free_urb(urb);
770
771 return err;
772}
773
774static void btusb_isoc_complete(struct urb *urb)
775{
776 struct hci_dev *hdev = urb->context;
777 struct btusb_data *data = hci_get_drvdata(hdev);
778 int i, err;
779
780 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
781 urb->actual_length);
782
783 if (!test_bit(HCI_RUNNING, &hdev->flags))
784 return;
785
786 if (urb->status == 0) {
787 for (i = 0; i < urb->number_of_packets; i++) {
788 unsigned int offset = urb->iso_frame_desc[i].offset;
789 unsigned int length = urb->iso_frame_desc[i].actual_length;
790
791 if (urb->iso_frame_desc[i].status)
792 continue;
793
794 hdev->stat.byte_rx += length;
795
796 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
797 length) < 0) {
798 BT_ERR("%s corrupted SCO packet", hdev->name);
799 hdev->stat.err_rx++;
800 }
801 }
802 } else if (urb->status == -ENOENT) {
803 /* Avoid suspend failed when usb_kill_urb */
804 return;
805 }
806
807 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
808 return;
809
810 usb_anchor_urb(urb, &data->isoc_anchor);
811
812 err = usb_submit_urb(urb, GFP_ATOMIC);
813 if (err < 0) {
814 /* -EPERM: urb is being killed;
815 * -ENODEV: device got disconnected */
816 if (err != -EPERM && err != -ENODEV)
817 BT_ERR("%s urb %p failed to resubmit (%d)",
818 hdev->name, urb, -err);
819 usb_unanchor_urb(urb);
820 }
821}
822
823static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
824{
825 int i, offset = 0;
826
827 BT_DBG("len %d mtu %d", len, mtu);
828
829 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
830 i++, offset += mtu, len -= mtu) {
831 urb->iso_frame_desc[i].offset = offset;
832 urb->iso_frame_desc[i].length = mtu;
833 }
834
835 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
836 urb->iso_frame_desc[i].offset = offset;
837 urb->iso_frame_desc[i].length = len;
838 i++;
839 }
840
841 urb->number_of_packets = i;
842}
843
844static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
845{
846 struct btusb_data *data = hci_get_drvdata(hdev);
847 struct urb *urb;
848 unsigned char *buf;
849 unsigned int pipe;
850 int err, size;
851
852 BT_DBG("%s", hdev->name);
853
854 if (!data->isoc_rx_ep)
855 return -ENODEV;
856
857 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
858 if (!urb)
859 return -ENOMEM;
860
861 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
862 BTUSB_MAX_ISOC_FRAMES;
863
864 buf = kmalloc(size, mem_flags);
865 if (!buf) {
866 usb_free_urb(urb);
867 return -ENOMEM;
868 }
869
870 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
871
872 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
873 hdev, data->isoc_rx_ep->bInterval);
874
875 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
876
877 __fill_isoc_descriptor(urb, size,
878 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
879
880 usb_anchor_urb(urb, &data->isoc_anchor);
881
882 err = usb_submit_urb(urb, mem_flags);
883 if (err < 0) {
884 if (err != -EPERM && err != -ENODEV)
885 BT_ERR("%s urb %p submission failed (%d)",
886 hdev->name, urb, -err);
887 usb_unanchor_urb(urb);
888 }
889
890 usb_free_urb(urb);
891
892 return err;
893}
894
895static void btusb_diag_complete(struct urb *urb)
896{
897 struct hci_dev *hdev = urb->context;
898 struct btusb_data *data = hci_get_drvdata(hdev);
899 int err;
900
901 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
902 urb->actual_length);
903
904 if (urb->status == 0) {
905 struct sk_buff *skb;
906
907 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC);
908 if (skb) {
909 memcpy(skb_put(skb, urb->actual_length),
910 urb->transfer_buffer, urb->actual_length);
911 hci_recv_diag(hdev, skb);
912 }
913 } else if (urb->status == -ENOENT) {
914 /* Avoid suspend failed when usb_kill_urb */
915 return;
916 }
917
918 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags))
919 return;
920
921 usb_anchor_urb(urb, &data->diag_anchor);
922 usb_mark_last_busy(data->udev);
923
924 err = usb_submit_urb(urb, GFP_ATOMIC);
925 if (err < 0) {
926 /* -EPERM: urb is being killed;
927 * -ENODEV: device got disconnected */
928 if (err != -EPERM && err != -ENODEV)
929 BT_ERR("%s urb %p failed to resubmit (%d)",
930 hdev->name, urb, -err);
931 usb_unanchor_urb(urb);
932 }
933}
934
935static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags)
936{
937 struct btusb_data *data = hci_get_drvdata(hdev);
938 struct urb *urb;
939 unsigned char *buf;
940 unsigned int pipe;
941 int err, size = HCI_MAX_FRAME_SIZE;
942
943 BT_DBG("%s", hdev->name);
944
945 if (!data->diag_rx_ep)
946 return -ENODEV;
947
948 urb = usb_alloc_urb(0, mem_flags);
949 if (!urb)
950 return -ENOMEM;
951
952 buf = kmalloc(size, mem_flags);
953 if (!buf) {
954 usb_free_urb(urb);
955 return -ENOMEM;
956 }
957
958 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress);
959
960 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
961 btusb_diag_complete, hdev);
962
963 urb->transfer_flags |= URB_FREE_BUFFER;
964
965 usb_mark_last_busy(data->udev);
966 usb_anchor_urb(urb, &data->diag_anchor);
967
968 err = usb_submit_urb(urb, mem_flags);
969 if (err < 0) {
970 if (err != -EPERM && err != -ENODEV)
971 BT_ERR("%s urb %p submission failed (%d)",
972 hdev->name, urb, -err);
973 usb_unanchor_urb(urb);
974 }
975
976 usb_free_urb(urb);
977
978 return err;
979}
980
981static void btusb_tx_complete(struct urb *urb)
982{
983 struct sk_buff *skb = urb->context;
984 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
985 struct btusb_data *data = hci_get_drvdata(hdev);
986
987 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
988 urb->actual_length);
989
990 if (!test_bit(HCI_RUNNING, &hdev->flags))
991 goto done;
992
993 if (!urb->status)
994 hdev->stat.byte_tx += urb->transfer_buffer_length;
995 else
996 hdev->stat.err_tx++;
997
998done:
999 spin_lock(&data->txlock);
1000 data->tx_in_flight--;
1001 spin_unlock(&data->txlock);
1002
1003 kfree(urb->setup_packet);
1004
1005 kfree_skb(skb);
1006}
1007
1008static void btusb_isoc_tx_complete(struct urb *urb)
1009{
1010 struct sk_buff *skb = urb->context;
1011 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1012
1013 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1014 urb->actual_length);
1015
1016 if (!test_bit(HCI_RUNNING, &hdev->flags))
1017 goto done;
1018
1019 if (!urb->status)
1020 hdev->stat.byte_tx += urb->transfer_buffer_length;
1021 else
1022 hdev->stat.err_tx++;
1023
1024done:
1025 kfree(urb->setup_packet);
1026
1027 kfree_skb(skb);
1028}
1029
1030static int btusb_open(struct hci_dev *hdev)
1031{
1032 struct btusb_data *data = hci_get_drvdata(hdev);
1033 int err;
1034
1035 BT_DBG("%s", hdev->name);
1036
1037 /* Patching USB firmware files prior to starting any URBs of HCI path
1038 * It is more safe to use USB bulk channel for downloading USB patch
1039 */
1040 if (data->setup_on_usb) {
1041 err = data->setup_on_usb(hdev);
1042 if (err < 0)
1043 return err;
1044 }
1045
1046 err = usb_autopm_get_interface(data->intf);
1047 if (err < 0)
1048 return err;
1049
1050 data->intf->needs_remote_wakeup = 1;
1051
1052 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
1053 goto done;
1054
1055 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
1056 if (err < 0)
1057 goto failed;
1058
1059 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1060 if (err < 0) {
1061 usb_kill_anchored_urbs(&data->intr_anchor);
1062 goto failed;
1063 }
1064
1065 set_bit(BTUSB_BULK_RUNNING, &data->flags);
1066 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1067
1068 if (data->diag) {
1069 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL))
1070 set_bit(BTUSB_DIAG_RUNNING, &data->flags);
1071 }
1072
1073done:
1074 usb_autopm_put_interface(data->intf);
1075 return 0;
1076
1077failed:
1078 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1079 usb_autopm_put_interface(data->intf);
1080 return err;
1081}
1082
1083static void btusb_stop_traffic(struct btusb_data *data)
1084{
1085 usb_kill_anchored_urbs(&data->intr_anchor);
1086 usb_kill_anchored_urbs(&data->bulk_anchor);
1087 usb_kill_anchored_urbs(&data->isoc_anchor);
1088 usb_kill_anchored_urbs(&data->diag_anchor);
1089}
1090
1091static int btusb_close(struct hci_dev *hdev)
1092{
1093 struct btusb_data *data = hci_get_drvdata(hdev);
1094 int err;
1095
1096 BT_DBG("%s", hdev->name);
1097
1098 cancel_work_sync(&data->work);
1099 cancel_work_sync(&data->waker);
1100
1101 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1102 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1103 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1104 clear_bit(BTUSB_DIAG_RUNNING, &data->flags);
1105
1106 btusb_stop_traffic(data);
1107 btusb_free_frags(data);
1108
1109 err = usb_autopm_get_interface(data->intf);
1110 if (err < 0)
1111 goto failed;
1112
1113 data->intf->needs_remote_wakeup = 0;
1114 usb_autopm_put_interface(data->intf);
1115
1116failed:
1117 usb_scuttle_anchored_urbs(&data->deferred);
1118 return 0;
1119}
1120
1121static int btusb_flush(struct hci_dev *hdev)
1122{
1123 struct btusb_data *data = hci_get_drvdata(hdev);
1124
1125 BT_DBG("%s", hdev->name);
1126
1127 usb_kill_anchored_urbs(&data->tx_anchor);
1128 btusb_free_frags(data);
1129
1130 return 0;
1131}
1132
1133static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
1134{
1135 struct btusb_data *data = hci_get_drvdata(hdev);
1136 struct usb_ctrlrequest *dr;
1137 struct urb *urb;
1138 unsigned int pipe;
1139
1140 urb = usb_alloc_urb(0, GFP_KERNEL);
1141 if (!urb)
1142 return ERR_PTR(-ENOMEM);
1143
1144 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
1145 if (!dr) {
1146 usb_free_urb(urb);
1147 return ERR_PTR(-ENOMEM);
1148 }
1149
1150 dr->bRequestType = data->cmdreq_type;
1151 dr->bRequest = data->cmdreq;
1152 dr->wIndex = 0;
1153 dr->wValue = 0;
1154 dr->wLength = __cpu_to_le16(skb->len);
1155
1156 pipe = usb_sndctrlpipe(data->udev, 0x00);
1157
1158 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
1159 skb->data, skb->len, btusb_tx_complete, skb);
1160
1161 skb->dev = (void *)hdev;
1162
1163 return urb;
1164}
1165
1166static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
1167{
1168 struct btusb_data *data = hci_get_drvdata(hdev);
1169 struct urb *urb;
1170 unsigned int pipe;
1171
1172 if (!data->bulk_tx_ep)
1173 return ERR_PTR(-ENODEV);
1174
1175 urb = usb_alloc_urb(0, GFP_KERNEL);
1176 if (!urb)
1177 return ERR_PTR(-ENOMEM);
1178
1179 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
1180
1181 usb_fill_bulk_urb(urb, data->udev, pipe,
1182 skb->data, skb->len, btusb_tx_complete, skb);
1183
1184 skb->dev = (void *)hdev;
1185
1186 return urb;
1187}
1188
1189static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
1190{
1191 struct btusb_data *data = hci_get_drvdata(hdev);
1192 struct urb *urb;
1193 unsigned int pipe;
1194
1195 if (!data->isoc_tx_ep)
1196 return ERR_PTR(-ENODEV);
1197
1198 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
1199 if (!urb)
1200 return ERR_PTR(-ENOMEM);
1201
1202 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
1203
1204 usb_fill_int_urb(urb, data->udev, pipe,
1205 skb->data, skb->len, btusb_isoc_tx_complete,
1206 skb, data->isoc_tx_ep->bInterval);
1207
1208 urb->transfer_flags = URB_ISO_ASAP;
1209
1210 __fill_isoc_descriptor(urb, skb->len,
1211 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
1212
1213 skb->dev = (void *)hdev;
1214
1215 return urb;
1216}
1217
1218static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
1219{
1220 struct btusb_data *data = hci_get_drvdata(hdev);
1221 int err;
1222
1223 usb_anchor_urb(urb, &data->tx_anchor);
1224
1225 err = usb_submit_urb(urb, GFP_KERNEL);
1226 if (err < 0) {
1227 if (err != -EPERM && err != -ENODEV)
1228 BT_ERR("%s urb %p submission failed (%d)",
1229 hdev->name, urb, -err);
1230 kfree(urb->setup_packet);
1231 usb_unanchor_urb(urb);
1232 } else {
1233 usb_mark_last_busy(data->udev);
1234 }
1235
1236 usb_free_urb(urb);
1237 return err;
1238}
1239
1240static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
1241{
1242 struct btusb_data *data = hci_get_drvdata(hdev);
1243 unsigned long flags;
1244 bool suspending;
1245
1246 spin_lock_irqsave(&data->txlock, flags);
1247 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
1248 if (!suspending)
1249 data->tx_in_flight++;
1250 spin_unlock_irqrestore(&data->txlock, flags);
1251
1252 if (!suspending)
1253 return submit_tx_urb(hdev, urb);
1254
1255 usb_anchor_urb(urb, &data->deferred);
1256 schedule_work(&data->waker);
1257
1258 usb_free_urb(urb);
1259 return 0;
1260}
1261
1262static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
1263{
1264 struct urb *urb;
1265
1266 BT_DBG("%s", hdev->name);
1267
1268 switch (hci_skb_pkt_type(skb)) {
1269 case HCI_COMMAND_PKT:
1270 urb = alloc_ctrl_urb(hdev, skb);
1271 if (IS_ERR(urb))
1272 return PTR_ERR(urb);
1273
1274 hdev->stat.cmd_tx++;
1275 return submit_or_queue_tx_urb(hdev, urb);
1276
1277 case HCI_ACLDATA_PKT:
1278 urb = alloc_bulk_urb(hdev, skb);
1279 if (IS_ERR(urb))
1280 return PTR_ERR(urb);
1281
1282 hdev->stat.acl_tx++;
1283 return submit_or_queue_tx_urb(hdev, urb);
1284
1285 case HCI_SCODATA_PKT:
1286 if (hci_conn_num(hdev, SCO_LINK) < 1)
1287 return -ENODEV;
1288
1289 urb = alloc_isoc_urb(hdev, skb);
1290 if (IS_ERR(urb))
1291 return PTR_ERR(urb);
1292
1293 hdev->stat.sco_tx++;
1294 return submit_tx_urb(hdev, urb);
1295 }
1296
1297 return -EILSEQ;
1298}
1299
1300static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
1301{
1302 struct btusb_data *data = hci_get_drvdata(hdev);
1303
1304 BT_DBG("%s evt %d", hdev->name, evt);
1305
1306 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
1307 data->sco_num = hci_conn_num(hdev, SCO_LINK);
1308 schedule_work(&data->work);
1309 }
1310}
1311
1312static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
1313{
1314 struct btusb_data *data = hci_get_drvdata(hdev);
1315 struct usb_interface *intf = data->isoc;
1316 struct usb_endpoint_descriptor *ep_desc;
1317 int i, err;
1318
1319 if (!data->isoc)
1320 return -ENODEV;
1321
1322 err = usb_set_interface(data->udev, 1, altsetting);
1323 if (err < 0) {
1324 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
1325 return err;
1326 }
1327
1328 data->isoc_altsetting = altsetting;
1329
1330 data->isoc_tx_ep = NULL;
1331 data->isoc_rx_ep = NULL;
1332
1333 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1334 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1335
1336 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
1337 data->isoc_tx_ep = ep_desc;
1338 continue;
1339 }
1340
1341 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
1342 data->isoc_rx_ep = ep_desc;
1343 continue;
1344 }
1345 }
1346
1347 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
1348 BT_ERR("%s invalid SCO descriptors", hdev->name);
1349 return -ENODEV;
1350 }
1351
1352 return 0;
1353}
1354
1355static void btusb_work(struct work_struct *work)
1356{
1357 struct btusb_data *data = container_of(work, struct btusb_data, work);
1358 struct hci_dev *hdev = data->hdev;
1359 int new_alts;
1360 int err;
1361
1362 if (data->sco_num > 0) {
1363 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
1364 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
1365 if (err < 0) {
1366 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1367 usb_kill_anchored_urbs(&data->isoc_anchor);
1368 return;
1369 }
1370
1371 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
1372 }
1373
1374 if (hdev->voice_setting & 0x0020) {
1375 static const int alts[3] = { 2, 4, 5 };
1376
1377 new_alts = alts[data->sco_num - 1];
1378 } else {
1379 new_alts = data->sco_num;
1380 }
1381
1382 if (data->isoc_altsetting != new_alts) {
1383 unsigned long flags;
1384
1385 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1386 usb_kill_anchored_urbs(&data->isoc_anchor);
1387
1388 /* When isochronous alternate setting needs to be
1389 * changed, because SCO connection has been added
1390 * or removed, a packet fragment may be left in the
1391 * reassembling state. This could lead to wrongly
1392 * assembled fragments.
1393 *
1394 * Clear outstanding fragment when selecting a new
1395 * alternate setting.
1396 */
1397 spin_lock_irqsave(&data->rxlock, flags);
1398 kfree_skb(data->sco_skb);
1399 data->sco_skb = NULL;
1400 spin_unlock_irqrestore(&data->rxlock, flags);
1401
1402 if (__set_isoc_interface(hdev, new_alts) < 0)
1403 return;
1404 }
1405
1406 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1407 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
1408 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1409 else
1410 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
1411 }
1412 } else {
1413 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1414 usb_kill_anchored_urbs(&data->isoc_anchor);
1415
1416 __set_isoc_interface(hdev, 0);
1417 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
1418 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
1419 }
1420}
1421
1422static void btusb_waker(struct work_struct *work)
1423{
1424 struct btusb_data *data = container_of(work, struct btusb_data, waker);
1425 int err;
1426
1427 err = usb_autopm_get_interface(data->intf);
1428 if (err < 0)
1429 return;
1430
1431 usb_autopm_put_interface(data->intf);
1432}
1433
1434static int btusb_setup_bcm92035(struct hci_dev *hdev)
1435{
1436 struct sk_buff *skb;
1437 u8 val = 0x00;
1438
1439 BT_DBG("%s", hdev->name);
1440
1441 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
1442 if (IS_ERR(skb))
1443 BT_ERR("BCM92035 command failed (%ld)", -PTR_ERR(skb));
1444 else
1445 kfree_skb(skb);
1446
1447 return 0;
1448}
1449
1450static int btusb_setup_csr(struct hci_dev *hdev)
1451{
1452 struct hci_rp_read_local_version *rp;
1453 struct sk_buff *skb;
1454
1455 BT_DBG("%s", hdev->name);
1456
1457 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1458 HCI_INIT_TIMEOUT);
1459 if (IS_ERR(skb)) {
1460 int err = PTR_ERR(skb);
1461 BT_ERR("%s: CSR: Local version failed (%d)", hdev->name, err);
1462 return err;
1463 }
1464
1465 if (skb->len != sizeof(struct hci_rp_read_local_version)) {
1466 BT_ERR("%s: CSR: Local version length mismatch", hdev->name);
1467 kfree_skb(skb);
1468 return -EIO;
1469 }
1470
1471 rp = (struct hci_rp_read_local_version *)skb->data;
1472
1473 /* Detect controllers which aren't real CSR ones. */
1474 if (le16_to_cpu(rp->manufacturer) != 10 ||
1475 le16_to_cpu(rp->lmp_subver) == 0x0c5c) {
1476 /* Clear the reset quirk since this is not an actual
1477 * early Bluetooth 1.1 device from CSR.
1478 */
1479 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1480
1481 /* These fake CSR controllers have all a broken
1482 * stored link key handling and so just disable it.
1483 */
1484 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
1485 }
1486
1487 kfree_skb(skb);
1488
1489 return 0;
1490}
1491
1492static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev,
1493 struct intel_version *ver)
1494{
1495 const struct firmware *fw;
1496 char fwname[64];
1497 int ret;
1498
1499 snprintf(fwname, sizeof(fwname),
1500 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq",
1501 ver->hw_platform, ver->hw_variant, ver->hw_revision,
1502 ver->fw_variant, ver->fw_revision, ver->fw_build_num,
1503 ver->fw_build_ww, ver->fw_build_yy);
1504
1505 ret = request_firmware(&fw, fwname, &hdev->dev);
1506 if (ret < 0) {
1507 if (ret == -EINVAL) {
1508 BT_ERR("%s Intel firmware file request failed (%d)",
1509 hdev->name, ret);
1510 return NULL;
1511 }
1512
1513 BT_ERR("%s failed to open Intel firmware file: %s(%d)",
1514 hdev->name, fwname, ret);
1515
1516 /* If the correct firmware patch file is not found, use the
1517 * default firmware patch file instead
1518 */
1519 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq",
1520 ver->hw_platform, ver->hw_variant);
1521 if (request_firmware(&fw, fwname, &hdev->dev) < 0) {
1522 BT_ERR("%s failed to open default Intel fw file: %s",
1523 hdev->name, fwname);
1524 return NULL;
1525 }
1526 }
1527
1528 BT_INFO("%s: Intel Bluetooth firmware file: %s", hdev->name, fwname);
1529
1530 return fw;
1531}
1532
1533static int btusb_setup_intel_patching(struct hci_dev *hdev,
1534 const struct firmware *fw,
1535 const u8 **fw_ptr, int *disable_patch)
1536{
1537 struct sk_buff *skb;
1538 struct hci_command_hdr *cmd;
1539 const u8 *cmd_param;
1540 struct hci_event_hdr *evt = NULL;
1541 const u8 *evt_param = NULL;
1542 int remain = fw->size - (*fw_ptr - fw->data);
1543
1544 /* The first byte indicates the types of the patch command or event.
1545 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes
1546 * in the current firmware buffer doesn't start with 0x01 or
1547 * the size of remain buffer is smaller than HCI command header,
1548 * the firmware file is corrupted and it should stop the patching
1549 * process.
1550 */
1551 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) {
1552 BT_ERR("%s Intel fw corrupted: invalid cmd read", hdev->name);
1553 return -EINVAL;
1554 }
1555 (*fw_ptr)++;
1556 remain--;
1557
1558 cmd = (struct hci_command_hdr *)(*fw_ptr);
1559 *fw_ptr += sizeof(*cmd);
1560 remain -= sizeof(*cmd);
1561
1562 /* Ensure that the remain firmware data is long enough than the length
1563 * of command parameter. If not, the firmware file is corrupted.
1564 */
1565 if (remain < cmd->plen) {
1566 BT_ERR("%s Intel fw corrupted: invalid cmd len", hdev->name);
1567 return -EFAULT;
1568 }
1569
1570 /* If there is a command that loads a patch in the firmware
1571 * file, then enable the patch upon success, otherwise just
1572 * disable the manufacturer mode, for example patch activation
1573 * is not required when the default firmware patch file is used
1574 * because there are no patch data to load.
1575 */
1576 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e)
1577 *disable_patch = 0;
1578
1579 cmd_param = *fw_ptr;
1580 *fw_ptr += cmd->plen;
1581 remain -= cmd->plen;
1582
1583 /* This reads the expected events when the above command is sent to the
1584 * device. Some vendor commands expects more than one events, for
1585 * example command status event followed by vendor specific event.
1586 * For this case, it only keeps the last expected event. so the command
1587 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of
1588 * last expected event.
1589 */
1590 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) {
1591 (*fw_ptr)++;
1592 remain--;
1593
1594 evt = (struct hci_event_hdr *)(*fw_ptr);
1595 *fw_ptr += sizeof(*evt);
1596 remain -= sizeof(*evt);
1597
1598 if (remain < evt->plen) {
1599 BT_ERR("%s Intel fw corrupted: invalid evt len",
1600 hdev->name);
1601 return -EFAULT;
1602 }
1603
1604 evt_param = *fw_ptr;
1605 *fw_ptr += evt->plen;
1606 remain -= evt->plen;
1607 }
1608
1609 /* Every HCI commands in the firmware file has its correspond event.
1610 * If event is not found or remain is smaller than zero, the firmware
1611 * file is corrupted.
1612 */
1613 if (!evt || !evt_param || remain < 0) {
1614 BT_ERR("%s Intel fw corrupted: invalid evt read", hdev->name);
1615 return -EFAULT;
1616 }
1617
1618 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen,
1619 cmd_param, evt->evt, HCI_INIT_TIMEOUT);
1620 if (IS_ERR(skb)) {
1621 BT_ERR("%s sending Intel patch command (0x%4.4x) failed (%ld)",
1622 hdev->name, cmd->opcode, PTR_ERR(skb));
1623 return PTR_ERR(skb);
1624 }
1625
1626 /* It ensures that the returned event matches the event data read from
1627 * the firmware file. At fist, it checks the length and then
1628 * the contents of the event.
1629 */
1630 if (skb->len != evt->plen) {
1631 BT_ERR("%s mismatch event length (opcode 0x%4.4x)", hdev->name,
1632 le16_to_cpu(cmd->opcode));
1633 kfree_skb(skb);
1634 return -EFAULT;
1635 }
1636
1637 if (memcmp(skb->data, evt_param, evt->plen)) {
1638 BT_ERR("%s mismatch event parameter (opcode 0x%4.4x)",
1639 hdev->name, le16_to_cpu(cmd->opcode));
1640 kfree_skb(skb);
1641 return -EFAULT;
1642 }
1643 kfree_skb(skb);
1644
1645 return 0;
1646}
1647
1648static int btusb_setup_intel(struct hci_dev *hdev)
1649{
1650 struct sk_buff *skb;
1651 const struct firmware *fw;
1652 const u8 *fw_ptr;
1653 int disable_patch, err;
1654 struct intel_version ver;
1655
1656 BT_DBG("%s", hdev->name);
1657
1658 /* The controller has a bug with the first HCI command sent to it
1659 * returning number of completed commands as zero. This would stall the
1660 * command processing in the Bluetooth core.
1661 *
1662 * As a workaround, send HCI Reset command first which will reset the
1663 * number of completed commands and allow normal command processing
1664 * from now on.
1665 */
1666 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1667 if (IS_ERR(skb)) {
1668 BT_ERR("%s sending initial HCI reset command failed (%ld)",
1669 hdev->name, PTR_ERR(skb));
1670 return PTR_ERR(skb);
1671 }
1672 kfree_skb(skb);
1673
1674 /* Read Intel specific controller version first to allow selection of
1675 * which firmware file to load.
1676 *
1677 * The returned information are hardware variant and revision plus
1678 * firmware variant, revision and build number.
1679 */
1680 err = btintel_read_version(hdev, &ver);
1681 if (err)
1682 return err;
1683
1684 BT_INFO("%s: read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
1685 hdev->name, ver.hw_platform, ver.hw_variant, ver.hw_revision,
1686 ver.fw_variant, ver.fw_revision, ver.fw_build_num,
1687 ver.fw_build_ww, ver.fw_build_yy, ver.fw_patch_num);
1688
1689 /* fw_patch_num indicates the version of patch the device currently
1690 * have. If there is no patch data in the device, it is always 0x00.
1691 * So, if it is other than 0x00, no need to patch the device again.
1692 */
1693 if (ver.fw_patch_num) {
1694 BT_INFO("%s: Intel device is already patched. patch num: %02x",
1695 hdev->name, ver.fw_patch_num);
1696 goto complete;
1697 }
1698
1699 /* Opens the firmware patch file based on the firmware version read
1700 * from the controller. If it fails to open the matching firmware
1701 * patch file, it tries to open the default firmware patch file.
1702 * If no patch file is found, allow the device to operate without
1703 * a patch.
1704 */
1705 fw = btusb_setup_intel_get_fw(hdev, &ver);
1706 if (!fw)
1707 goto complete;
1708 fw_ptr = fw->data;
1709
1710 /* Enable the manufacturer mode of the controller.
1711 * Only while this mode is enabled, the driver can download the
1712 * firmware patch data and configuration parameters.
1713 */
1714 err = btintel_enter_mfg(hdev);
1715 if (err) {
1716 release_firmware(fw);
1717 return err;
1718 }
1719
1720 disable_patch = 1;
1721
1722 /* The firmware data file consists of list of Intel specific HCI
1723 * commands and its expected events. The first byte indicates the
1724 * type of the message, either HCI command or HCI event.
1725 *
1726 * It reads the command and its expected event from the firmware file,
1727 * and send to the controller. Once __hci_cmd_sync_ev() returns,
1728 * the returned event is compared with the event read from the firmware
1729 * file and it will continue until all the messages are downloaded to
1730 * the controller.
1731 *
1732 * Once the firmware patching is completed successfully,
1733 * the manufacturer mode is disabled with reset and activating the
1734 * downloaded patch.
1735 *
1736 * If the firmware patching fails, the manufacturer mode is
1737 * disabled with reset and deactivating the patch.
1738 *
1739 * If the default patch file is used, no reset is done when disabling
1740 * the manufacturer.
1741 */
1742 while (fw->size > fw_ptr - fw->data) {
1743 int ret;
1744
1745 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr,
1746 &disable_patch);
1747 if (ret < 0)
1748 goto exit_mfg_deactivate;
1749 }
1750
1751 release_firmware(fw);
1752
1753 if (disable_patch)
1754 goto exit_mfg_disable;
1755
1756 /* Patching completed successfully and disable the manufacturer mode
1757 * with reset and activate the downloaded firmware patches.
1758 */
1759 err = btintel_exit_mfg(hdev, true, true);
1760 if (err)
1761 return err;
1762
1763 BT_INFO("%s: Intel Bluetooth firmware patch completed and activated",
1764 hdev->name);
1765
1766 goto complete;
1767
1768exit_mfg_disable:
1769 /* Disable the manufacturer mode without reset */
1770 err = btintel_exit_mfg(hdev, false, false);
1771 if (err)
1772 return err;
1773
1774 BT_INFO("%s: Intel Bluetooth firmware patch completed", hdev->name);
1775
1776 goto complete;
1777
1778exit_mfg_deactivate:
1779 release_firmware(fw);
1780
1781 /* Patching failed. Disable the manufacturer mode with reset and
1782 * deactivate the downloaded firmware patches.
1783 */
1784 err = btintel_exit_mfg(hdev, true, false);
1785 if (err)
1786 return err;
1787
1788 BT_INFO("%s: Intel Bluetooth firmware patch completed and deactivated",
1789 hdev->name);
1790
1791complete:
1792 /* Set the event mask for Intel specific vendor events. This enables
1793 * a few extra events that are useful during general operation.
1794 */
1795 btintel_set_event_mask_mfg(hdev, false);
1796
1797 btintel_check_bdaddr(hdev);
1798 return 0;
1799}
1800
1801static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
1802{
1803 struct sk_buff *skb;
1804 struct hci_event_hdr *hdr;
1805 struct hci_ev_cmd_complete *evt;
1806
1807 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_ATOMIC);
1808 if (!skb)
1809 return -ENOMEM;
1810
1811 hdr = (struct hci_event_hdr *)skb_put(skb, sizeof(*hdr));
1812 hdr->evt = HCI_EV_CMD_COMPLETE;
1813 hdr->plen = sizeof(*evt) + 1;
1814
1815 evt = (struct hci_ev_cmd_complete *)skb_put(skb, sizeof(*evt));
1816 evt->ncmd = 0x01;
1817 evt->opcode = cpu_to_le16(opcode);
1818
1819 *skb_put(skb, 1) = 0x00;
1820
1821 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
1822
1823 return hci_recv_frame(hdev, skb);
1824}
1825
1826static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
1827 int count)
1828{
1829 /* When the device is in bootloader mode, then it can send
1830 * events via the bulk endpoint. These events are treated the
1831 * same way as the ones received from the interrupt endpoint.
1832 */
1833 if (test_bit(BTUSB_BOOTLOADER, &data->flags))
1834 return btusb_recv_intr(data, buffer, count);
1835
1836 return btusb_recv_bulk(data, buffer, count);
1837}
1838
1839static void btusb_intel_bootup(struct btusb_data *data, const void *ptr,
1840 unsigned int len)
1841{
1842 const struct intel_bootup *evt = ptr;
1843
1844 if (len != sizeof(*evt))
1845 return;
1846
1847 if (test_and_clear_bit(BTUSB_BOOTING, &data->flags)) {
1848 smp_mb__after_atomic();
1849 wake_up_bit(&data->flags, BTUSB_BOOTING);
1850 }
1851}
1852
1853static void btusb_intel_secure_send_result(struct btusb_data *data,
1854 const void *ptr, unsigned int len)
1855{
1856 const struct intel_secure_send_result *evt = ptr;
1857
1858 if (len != sizeof(*evt))
1859 return;
1860
1861 if (evt->result)
1862 set_bit(BTUSB_FIRMWARE_FAILED, &data->flags);
1863
1864 if (test_and_clear_bit(BTUSB_DOWNLOADING, &data->flags) &&
1865 test_bit(BTUSB_FIRMWARE_LOADED, &data->flags)) {
1866 smp_mb__after_atomic();
1867 wake_up_bit(&data->flags, BTUSB_DOWNLOADING);
1868 }
1869}
1870
1871static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb)
1872{
1873 struct btusb_data *data = hci_get_drvdata(hdev);
1874
1875 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
1876 struct hci_event_hdr *hdr = (void *)skb->data;
1877
1878 if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff &&
1879 hdr->plen > 0) {
1880 const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1;
1881 unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1;
1882
1883 switch (skb->data[2]) {
1884 case 0x02:
1885 /* When switching to the operational firmware
1886 * the device sends a vendor specific event
1887 * indicating that the bootup completed.
1888 */
1889 btusb_intel_bootup(data, ptr, len);
1890 break;
1891 case 0x06:
1892 /* When the firmware loading completes the
1893 * device sends out a vendor specific event
1894 * indicating the result of the firmware
1895 * loading.
1896 */
1897 btusb_intel_secure_send_result(data, ptr, len);
1898 break;
1899 }
1900 }
1901 }
1902
1903 return hci_recv_frame(hdev, skb);
1904}
1905
1906static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
1907{
1908 struct btusb_data *data = hci_get_drvdata(hdev);
1909 struct urb *urb;
1910
1911 BT_DBG("%s", hdev->name);
1912
1913 switch (hci_skb_pkt_type(skb)) {
1914 case HCI_COMMAND_PKT:
1915 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
1916 struct hci_command_hdr *cmd = (void *)skb->data;
1917 __u16 opcode = le16_to_cpu(cmd->opcode);
1918
1919 /* When in bootloader mode and the command 0xfc09
1920 * is received, it needs to be send down the
1921 * bulk endpoint. So allocate a bulk URB instead.
1922 */
1923 if (opcode == 0xfc09)
1924 urb = alloc_bulk_urb(hdev, skb);
1925 else
1926 urb = alloc_ctrl_urb(hdev, skb);
1927
1928 /* When the 0xfc01 command is issued to boot into
1929 * the operational firmware, it will actually not
1930 * send a command complete event. To keep the flow
1931 * control working inject that event here.
1932 */
1933 if (opcode == 0xfc01)
1934 inject_cmd_complete(hdev, opcode);
1935 } else {
1936 urb = alloc_ctrl_urb(hdev, skb);
1937 }
1938 if (IS_ERR(urb))
1939 return PTR_ERR(urb);
1940
1941 hdev->stat.cmd_tx++;
1942 return submit_or_queue_tx_urb(hdev, urb);
1943
1944 case HCI_ACLDATA_PKT:
1945 urb = alloc_bulk_urb(hdev, skb);
1946 if (IS_ERR(urb))
1947 return PTR_ERR(urb);
1948
1949 hdev->stat.acl_tx++;
1950 return submit_or_queue_tx_urb(hdev, urb);
1951
1952 case HCI_SCODATA_PKT:
1953 if (hci_conn_num(hdev, SCO_LINK) < 1)
1954 return -ENODEV;
1955
1956 urb = alloc_isoc_urb(hdev, skb);
1957 if (IS_ERR(urb))
1958 return PTR_ERR(urb);
1959
1960 hdev->stat.sco_tx++;
1961 return submit_tx_urb(hdev, urb);
1962 }
1963
1964 return -EILSEQ;
1965}
1966
1967static int btusb_setup_intel_new(struct hci_dev *hdev)
1968{
1969 static const u8 reset_param[] = { 0x00, 0x01, 0x00, 0x01,
1970 0x00, 0x08, 0x04, 0x00 };
1971 struct btusb_data *data = hci_get_drvdata(hdev);
1972 struct sk_buff *skb;
1973 struct intel_version ver;
1974 struct intel_boot_params *params;
1975 const struct firmware *fw;
1976 const u8 *fw_ptr;
1977 u32 frag_len;
1978 char fwname[64];
1979 ktime_t calltime, delta, rettime;
1980 unsigned long long duration;
1981 int err;
1982
1983 BT_DBG("%s", hdev->name);
1984
1985 calltime = ktime_get();
1986
1987 /* Read the Intel version information to determine if the device
1988 * is in bootloader mode or if it already has operational firmware
1989 * loaded.
1990 */
1991 err = btintel_read_version(hdev, &ver);
1992 if (err)
1993 return err;
1994
1995 /* The hardware platform number has a fixed value of 0x37 and
1996 * for now only accept this single value.
1997 */
1998 if (ver.hw_platform != 0x37) {
1999 BT_ERR("%s: Unsupported Intel hardware platform (%u)",
2000 hdev->name, ver.hw_platform);
2001 return -EINVAL;
2002 }
2003
2004 /* At the moment only the hardware variant iBT 3.0 (LnP/SfP) is
2005 * supported by this firmware loading method. This check has been
2006 * put in place to ensure correct forward compatibility options
2007 * when newer hardware variants come along.
2008 */
2009 if (ver.hw_variant != 0x0b) {
2010 BT_ERR("%s: Unsupported Intel hardware variant (%u)",
2011 hdev->name, ver.hw_variant);
2012 return -EINVAL;
2013 }
2014
2015 btintel_version_info(hdev, &ver);
2016
2017 /* The firmware variant determines if the device is in bootloader
2018 * mode or is running operational firmware. The value 0x06 identifies
2019 * the bootloader and the value 0x23 identifies the operational
2020 * firmware.
2021 *
2022 * When the operational firmware is already present, then only
2023 * the check for valid Bluetooth device address is needed. This
2024 * determines if the device will be added as configured or
2025 * unconfigured controller.
2026 *
2027 * It is not possible to use the Secure Boot Parameters in this
2028 * case since that command is only available in bootloader mode.
2029 */
2030 if (ver.fw_variant == 0x23) {
2031 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2032 btintel_check_bdaddr(hdev);
2033 return 0;
2034 }
2035
2036 /* If the device is not in bootloader mode, then the only possible
2037 * choice is to return an error and abort the device initialization.
2038 */
2039 if (ver.fw_variant != 0x06) {
2040 BT_ERR("%s: Unsupported Intel firmware variant (%u)",
2041 hdev->name, ver.fw_variant);
2042 return -ENODEV;
2043 }
2044
2045 /* Read the secure boot parameters to identify the operating
2046 * details of the bootloader.
2047 */
2048 skb = __hci_cmd_sync(hdev, 0xfc0d, 0, NULL, HCI_INIT_TIMEOUT);
2049 if (IS_ERR(skb)) {
2050 BT_ERR("%s: Reading Intel boot parameters failed (%ld)",
2051 hdev->name, PTR_ERR(skb));
2052 return PTR_ERR(skb);
2053 }
2054
2055 if (skb->len != sizeof(*params)) {
2056 BT_ERR("%s: Intel boot parameters size mismatch", hdev->name);
2057 kfree_skb(skb);
2058 return -EILSEQ;
2059 }
2060
2061 params = (struct intel_boot_params *)skb->data;
2062
2063 BT_INFO("%s: Device revision is %u", hdev->name,
2064 le16_to_cpu(params->dev_revid));
2065
2066 BT_INFO("%s: Secure boot is %s", hdev->name,
2067 params->secure_boot ? "enabled" : "disabled");
2068
2069 BT_INFO("%s: OTP lock is %s", hdev->name,
2070 params->otp_lock ? "enabled" : "disabled");
2071
2072 BT_INFO("%s: API lock is %s", hdev->name,
2073 params->api_lock ? "enabled" : "disabled");
2074
2075 BT_INFO("%s: Debug lock is %s", hdev->name,
2076 params->debug_lock ? "enabled" : "disabled");
2077
2078 BT_INFO("%s: Minimum firmware build %u week %u %u", hdev->name,
2079 params->min_fw_build_nn, params->min_fw_build_cw,
2080 2000 + params->min_fw_build_yy);
2081
2082 /* It is required that every single firmware fragment is acknowledged
2083 * with a command complete event. If the boot parameters indicate
2084 * that this bootloader does not send them, then abort the setup.
2085 */
2086 if (params->limited_cce != 0x00) {
2087 BT_ERR("%s: Unsupported Intel firmware loading method (%u)",
2088 hdev->name, params->limited_cce);
2089 kfree_skb(skb);
2090 return -EINVAL;
2091 }
2092
2093 /* If the OTP has no valid Bluetooth device address, then there will
2094 * also be no valid address for the operational firmware.
2095 */
2096 if (!bacmp(¶ms->otp_bdaddr, BDADDR_ANY)) {
2097 BT_INFO("%s: No device address configured", hdev->name);
2098 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
2099 }
2100
2101 /* With this Intel bootloader only the hardware variant and device
2102 * revision information are used to select the right firmware.
2103 *
2104 * Currently this bootloader support is limited to hardware variant
2105 * iBT 3.0 (LnP/SfP) which is identified by the value 11 (0x0b).
2106 */
2107 snprintf(fwname, sizeof(fwname), "intel/ibt-11-%u.sfi",
2108 le16_to_cpu(params->dev_revid));
2109
2110 err = request_firmware(&fw, fwname, &hdev->dev);
2111 if (err < 0) {
2112 BT_ERR("%s: Failed to load Intel firmware file (%d)",
2113 hdev->name, err);
2114 kfree_skb(skb);
2115 return err;
2116 }
2117
2118 BT_INFO("%s: Found device firmware: %s", hdev->name, fwname);
2119
2120 /* Save the DDC file name for later use to apply once the firmware
2121 * downloading is done.
2122 */
2123 snprintf(fwname, sizeof(fwname), "intel/ibt-11-%u.ddc",
2124 le16_to_cpu(params->dev_revid));
2125
2126 kfree_skb(skb);
2127
2128 if (fw->size < 644) {
2129 BT_ERR("%s: Invalid size of firmware file (%zu)",
2130 hdev->name, fw->size);
2131 err = -EBADF;
2132 goto done;
2133 }
2134
2135 set_bit(BTUSB_DOWNLOADING, &data->flags);
2136
2137 /* Start the firmware download transaction with the Init fragment
2138 * represented by the 128 bytes of CSS header.
2139 */
2140 err = btintel_secure_send(hdev, 0x00, 128, fw->data);
2141 if (err < 0) {
2142 BT_ERR("%s: Failed to send firmware header (%d)",
2143 hdev->name, err);
2144 goto done;
2145 }
2146
2147 /* Send the 256 bytes of public key information from the firmware
2148 * as the PKey fragment.
2149 */
2150 err = btintel_secure_send(hdev, 0x03, 256, fw->data + 128);
2151 if (err < 0) {
2152 BT_ERR("%s: Failed to send firmware public key (%d)",
2153 hdev->name, err);
2154 goto done;
2155 }
2156
2157 /* Send the 256 bytes of signature information from the firmware
2158 * as the Sign fragment.
2159 */
2160 err = btintel_secure_send(hdev, 0x02, 256, fw->data + 388);
2161 if (err < 0) {
2162 BT_ERR("%s: Failed to send firmware signature (%d)",
2163 hdev->name, err);
2164 goto done;
2165 }
2166
2167 fw_ptr = fw->data + 644;
2168 frag_len = 0;
2169
2170 while (fw_ptr - fw->data < fw->size) {
2171 struct hci_command_hdr *cmd = (void *)(fw_ptr + frag_len);
2172
2173 frag_len += sizeof(*cmd) + cmd->plen;
2174
2175 /* The parameter length of the secure send command requires
2176 * a 4 byte alignment. It happens so that the firmware file
2177 * contains proper Intel_NOP commands to align the fragments
2178 * as needed.
2179 *
2180 * Send set of commands with 4 byte alignment from the
2181 * firmware data buffer as a single Data fragement.
2182 */
2183 if (!(frag_len % 4)) {
2184 err = btintel_secure_send(hdev, 0x01, frag_len, fw_ptr);
2185 if (err < 0) {
2186 BT_ERR("%s: Failed to send firmware data (%d)",
2187 hdev->name, err);
2188 goto done;
2189 }
2190
2191 fw_ptr += frag_len;
2192 frag_len = 0;
2193 }
2194 }
2195
2196 set_bit(BTUSB_FIRMWARE_LOADED, &data->flags);
2197
2198 BT_INFO("%s: Waiting for firmware download to complete", hdev->name);
2199
2200 /* Before switching the device into operational mode and with that
2201 * booting the loaded firmware, wait for the bootloader notification
2202 * that all fragments have been successfully received.
2203 *
2204 * When the event processing receives the notification, then the
2205 * BTUSB_DOWNLOADING flag will be cleared.
2206 *
2207 * The firmware loading should not take longer than 5 seconds
2208 * and thus just timeout if that happens and fail the setup
2209 * of this device.
2210 */
2211 err = wait_on_bit_timeout(&data->flags, BTUSB_DOWNLOADING,
2212 TASK_INTERRUPTIBLE,
2213 msecs_to_jiffies(5000));
2214 if (err == 1) {
2215 BT_ERR("%s: Firmware loading interrupted", hdev->name);
2216 err = -EINTR;
2217 goto done;
2218 }
2219
2220 if (err) {
2221 BT_ERR("%s: Firmware loading timeout", hdev->name);
2222 err = -ETIMEDOUT;
2223 goto done;
2224 }
2225
2226 if (test_bit(BTUSB_FIRMWARE_FAILED, &data->flags)) {
2227 BT_ERR("%s: Firmware loading failed", hdev->name);
2228 err = -ENOEXEC;
2229 goto done;
2230 }
2231
2232 rettime = ktime_get();
2233 delta = ktime_sub(rettime, calltime);
2234 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2235
2236 BT_INFO("%s: Firmware loaded in %llu usecs", hdev->name, duration);
2237
2238done:
2239 release_firmware(fw);
2240
2241 if (err < 0)
2242 return err;
2243
2244 calltime = ktime_get();
2245
2246 set_bit(BTUSB_BOOTING, &data->flags);
2247
2248 skb = __hci_cmd_sync(hdev, 0xfc01, sizeof(reset_param), reset_param,
2249 HCI_INIT_TIMEOUT);
2250 if (IS_ERR(skb))
2251 return PTR_ERR(skb);
2252
2253 kfree_skb(skb);
2254
2255 /* The bootloader will not indicate when the device is ready. This
2256 * is done by the operational firmware sending bootup notification.
2257 *
2258 * Booting into operational firmware should not take longer than
2259 * 1 second. However if that happens, then just fail the setup
2260 * since something went wrong.
2261 */
2262 BT_INFO("%s: Waiting for device to boot", hdev->name);
2263
2264 err = wait_on_bit_timeout(&data->flags, BTUSB_BOOTING,
2265 TASK_INTERRUPTIBLE,
2266 msecs_to_jiffies(1000));
2267
2268 if (err == 1) {
2269 BT_ERR("%s: Device boot interrupted", hdev->name);
2270 return -EINTR;
2271 }
2272
2273 if (err) {
2274 BT_ERR("%s: Device boot timeout", hdev->name);
2275 return -ETIMEDOUT;
2276 }
2277
2278 rettime = ktime_get();
2279 delta = ktime_sub(rettime, calltime);
2280 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2281
2282 BT_INFO("%s: Device booted in %llu usecs", hdev->name, duration);
2283
2284 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2285
2286 /* Once the device is running in operational mode, it needs to apply
2287 * the device configuration (DDC) parameters.
2288 *
2289 * The device can work without DDC parameters, so even if it fails
2290 * to load the file, no need to fail the setup.
2291 */
2292 btintel_load_ddc_config(hdev, fwname);
2293
2294 /* Set the event mask for Intel specific vendor events. This enables
2295 * a few extra events that are useful during general operation. It
2296 * does not enable any debugging related events.
2297 *
2298 * The device will function correctly without these events enabled
2299 * and thus no need to fail the setup.
2300 */
2301 btintel_set_event_mask(hdev, false);
2302
2303 return 0;
2304}
2305
2306static int btusb_shutdown_intel(struct hci_dev *hdev)
2307{
2308 struct sk_buff *skb;
2309 long ret;
2310
2311 /* Some platforms have an issue with BT LED when the interface is
2312 * down or BT radio is turned off, which takes 5 seconds to BT LED
2313 * goes off. This command turns off the BT LED immediately.
2314 */
2315 skb = __hci_cmd_sync(hdev, 0xfc3f, 0, NULL, HCI_INIT_TIMEOUT);
2316 if (IS_ERR(skb)) {
2317 ret = PTR_ERR(skb);
2318 BT_ERR("%s: turning off Intel device LED failed (%ld)",
2319 hdev->name, ret);
2320 return ret;
2321 }
2322 kfree_skb(skb);
2323
2324 return 0;
2325}
2326
2327static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
2328 const bdaddr_t *bdaddr)
2329{
2330 struct sk_buff *skb;
2331 u8 buf[8];
2332 long ret;
2333
2334 buf[0] = 0xfe;
2335 buf[1] = sizeof(bdaddr_t);
2336 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
2337
2338 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2339 if (IS_ERR(skb)) {
2340 ret = PTR_ERR(skb);
2341 BT_ERR("%s: changing Marvell device address failed (%ld)",
2342 hdev->name, ret);
2343 return ret;
2344 }
2345 kfree_skb(skb);
2346
2347 return 0;
2348}
2349
2350static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
2351 const bdaddr_t *bdaddr)
2352{
2353 struct sk_buff *skb;
2354 u8 buf[10];
2355 long ret;
2356
2357 buf[0] = 0x01;
2358 buf[1] = 0x01;
2359 buf[2] = 0x00;
2360 buf[3] = sizeof(bdaddr_t);
2361 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
2362
2363 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2364 if (IS_ERR(skb)) {
2365 ret = PTR_ERR(skb);
2366 BT_ERR("%s: Change address command failed (%ld)",
2367 hdev->name, ret);
2368 return ret;
2369 }
2370 kfree_skb(skb);
2371
2372 return 0;
2373}
2374
2375#define QCA_DFU_PACKET_LEN 4096
2376
2377#define QCA_GET_TARGET_VERSION 0x09
2378#define QCA_CHECK_STATUS 0x05
2379#define QCA_DFU_DOWNLOAD 0x01
2380
2381#define QCA_SYSCFG_UPDATED 0x40
2382#define QCA_PATCH_UPDATED 0x80
2383#define QCA_DFU_TIMEOUT 3000
2384
2385struct qca_version {
2386 __le32 rom_version;
2387 __le32 patch_version;
2388 __le32 ram_version;
2389 __le32 ref_clock;
2390 __u8 reserved[4];
2391} __packed;
2392
2393struct qca_rampatch_version {
2394 __le16 rom_version;
2395 __le16 patch_version;
2396} __packed;
2397
2398struct qca_device_info {
2399 u32 rom_version;
2400 u8 rampatch_hdr; /* length of header in rampatch */
2401 u8 nvm_hdr; /* length of header in NVM */
2402 u8 ver_offset; /* offset of version structure in rampatch */
2403};
2404
2405static const struct qca_device_info qca_devices_table[] = {
2406 { 0x00000100, 20, 4, 10 }, /* Rome 1.0 */
2407 { 0x00000101, 20, 4, 10 }, /* Rome 1.1 */
2408 { 0x00000200, 28, 4, 18 }, /* Rome 2.0 */
2409 { 0x00000201, 28, 4, 18 }, /* Rome 2.1 */
2410 { 0x00000300, 28, 4, 18 }, /* Rome 3.0 */
2411 { 0x00000302, 28, 4, 18 }, /* Rome 3.2 */
2412};
2413
2414static int btusb_qca_send_vendor_req(struct hci_dev *hdev, u8 request,
2415 void *data, u16 size)
2416{
2417 struct btusb_data *btdata = hci_get_drvdata(hdev);
2418 struct usb_device *udev = btdata->udev;
2419 int pipe, err;
2420 u8 *buf;
2421
2422 buf = kmalloc(size, GFP_KERNEL);
2423 if (!buf)
2424 return -ENOMEM;
2425
2426 /* Found some of USB hosts have IOT issues with ours so that we should
2427 * not wait until HCI layer is ready.
2428 */
2429 pipe = usb_rcvctrlpipe(udev, 0);
2430 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
2431 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
2432 if (err < 0) {
2433 BT_ERR("%s: Failed to access otp area (%d)", hdev->name, err);
2434 goto done;
2435 }
2436
2437 memcpy(data, buf, size);
2438
2439done:
2440 kfree(buf);
2441
2442 return err;
2443}
2444
2445static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
2446 const struct firmware *firmware,
2447 size_t hdr_size)
2448{
2449 struct btusb_data *btdata = hci_get_drvdata(hdev);
2450 struct usb_device *udev = btdata->udev;
2451 size_t count, size, sent = 0;
2452 int pipe, len, err;
2453 u8 *buf;
2454
2455 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
2456 if (!buf)
2457 return -ENOMEM;
2458
2459 count = firmware->size;
2460
2461 size = min_t(size_t, count, hdr_size);
2462 memcpy(buf, firmware->data, size);
2463
2464 /* USB patches should go down to controller through USB path
2465 * because binary format fits to go down through USB channel.
2466 * USB control path is for patching headers and USB bulk is for
2467 * patch body.
2468 */
2469 pipe = usb_sndctrlpipe(udev, 0);
2470 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
2471 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
2472 if (err < 0) {
2473 BT_ERR("%s: Failed to send headers (%d)", hdev->name, err);
2474 goto done;
2475 }
2476
2477 sent += size;
2478 count -= size;
2479
2480 while (count) {
2481 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
2482
2483 memcpy(buf, firmware->data + sent, size);
2484
2485 pipe = usb_sndbulkpipe(udev, 0x02);
2486 err = usb_bulk_msg(udev, pipe, buf, size, &len,
2487 QCA_DFU_TIMEOUT);
2488 if (err < 0) {
2489 BT_ERR("%s: Failed to send body at %zd of %zd (%d)",
2490 hdev->name, sent, firmware->size, err);
2491 break;
2492 }
2493
2494 if (size != len) {
2495 BT_ERR("%s: Failed to get bulk buffer", hdev->name);
2496 err = -EILSEQ;
2497 break;
2498 }
2499
2500 sent += size;
2501 count -= size;
2502 }
2503
2504done:
2505 kfree(buf);
2506 return err;
2507}
2508
2509static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
2510 struct qca_version *ver,
2511 const struct qca_device_info *info)
2512{
2513 struct qca_rampatch_version *rver;
2514 const struct firmware *fw;
2515 u32 ver_rom, ver_patch;
2516 u16 rver_rom, rver_patch;
2517 char fwname[64];
2518 int err;
2519
2520 ver_rom = le32_to_cpu(ver->rom_version);
2521 ver_patch = le32_to_cpu(ver->patch_version);
2522
2523 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom);
2524
2525 err = request_firmware(&fw, fwname, &hdev->dev);
2526 if (err) {
2527 BT_ERR("%s: failed to request rampatch file: %s (%d)",
2528 hdev->name, fwname, err);
2529 return err;
2530 }
2531
2532 BT_INFO("%s: using rampatch file: %s", hdev->name, fwname);
2533
2534 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
2535 rver_rom = le16_to_cpu(rver->rom_version);
2536 rver_patch = le16_to_cpu(rver->patch_version);
2537
2538 BT_INFO("%s: QCA: patch rome 0x%x build 0x%x, firmware rome 0x%x "
2539 "build 0x%x", hdev->name, rver_rom, rver_patch, ver_rom,
2540 ver_patch);
2541
2542 if (rver_rom != ver_rom || rver_patch <= ver_patch) {
2543 BT_ERR("%s: rampatch file version did not match with firmware",
2544 hdev->name);
2545 err = -EINVAL;
2546 goto done;
2547 }
2548
2549 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
2550
2551done:
2552 release_firmware(fw);
2553
2554 return err;
2555}
2556
2557static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
2558 struct qca_version *ver,
2559 const struct qca_device_info *info)
2560{
2561 const struct firmware *fw;
2562 char fwname[64];
2563 int err;
2564
2565 snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin",
2566 le32_to_cpu(ver->rom_version));
2567
2568 err = request_firmware(&fw, fwname, &hdev->dev);
2569 if (err) {
2570 BT_ERR("%s: failed to request NVM file: %s (%d)",
2571 hdev->name, fwname, err);
2572 return err;
2573 }
2574
2575 BT_INFO("%s: using NVM file: %s", hdev->name, fwname);
2576
2577 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
2578
2579 release_firmware(fw);
2580
2581 return err;
2582}
2583
2584static int btusb_setup_qca(struct hci_dev *hdev)
2585{
2586 const struct qca_device_info *info = NULL;
2587 struct qca_version ver;
2588 u32 ver_rom;
2589 u8 status;
2590 int i, err;
2591
2592 err = btusb_qca_send_vendor_req(hdev, QCA_GET_TARGET_VERSION, &ver,
2593 sizeof(ver));
2594 if (err < 0)
2595 return err;
2596
2597 ver_rom = le32_to_cpu(ver.rom_version);
2598 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
2599 if (ver_rom == qca_devices_table[i].rom_version)
2600 info = &qca_devices_table[i];
2601 }
2602 if (!info) {
2603 BT_ERR("%s: don't support firmware rome 0x%x", hdev->name,
2604 ver_rom);
2605 return -ENODEV;
2606 }
2607
2608 err = btusb_qca_send_vendor_req(hdev, QCA_CHECK_STATUS, &status,
2609 sizeof(status));
2610 if (err < 0)
2611 return err;
2612
2613 if (!(status & QCA_PATCH_UPDATED)) {
2614 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
2615 if (err < 0)
2616 return err;
2617 }
2618
2619 if (!(status & QCA_SYSCFG_UPDATED)) {
2620 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
2621 if (err < 0)
2622 return err;
2623 }
2624
2625 return 0;
2626}
2627
2628#ifdef CONFIG_BT_HCIBTUSB_BCM
2629static inline int __set_diag_interface(struct hci_dev *hdev)
2630{
2631 struct btusb_data *data = hci_get_drvdata(hdev);
2632 struct usb_interface *intf = data->diag;
2633 int i;
2634
2635 if (!data->diag)
2636 return -ENODEV;
2637
2638 data->diag_tx_ep = NULL;
2639 data->diag_rx_ep = NULL;
2640
2641 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2642 struct usb_endpoint_descriptor *ep_desc;
2643
2644 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2645
2646 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
2647 data->diag_tx_ep = ep_desc;
2648 continue;
2649 }
2650
2651 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
2652 data->diag_rx_ep = ep_desc;
2653 continue;
2654 }
2655 }
2656
2657 if (!data->diag_tx_ep || !data->diag_rx_ep) {
2658 BT_ERR("%s invalid diagnostic descriptors", hdev->name);
2659 return -ENODEV;
2660 }
2661
2662 return 0;
2663}
2664
2665static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable)
2666{
2667 struct btusb_data *data = hci_get_drvdata(hdev);
2668 struct sk_buff *skb;
2669 struct urb *urb;
2670 unsigned int pipe;
2671
2672 if (!data->diag_tx_ep)
2673 return ERR_PTR(-ENODEV);
2674
2675 urb = usb_alloc_urb(0, GFP_KERNEL);
2676 if (!urb)
2677 return ERR_PTR(-ENOMEM);
2678
2679 skb = bt_skb_alloc(2, GFP_KERNEL);
2680 if (!skb) {
2681 usb_free_urb(urb);
2682 return ERR_PTR(-ENOMEM);
2683 }
2684
2685 *skb_put(skb, 1) = 0xf0;
2686 *skb_put(skb, 1) = enable;
2687
2688 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress);
2689
2690 usb_fill_bulk_urb(urb, data->udev, pipe,
2691 skb->data, skb->len, btusb_tx_complete, skb);
2692
2693 skb->dev = (void *)hdev;
2694
2695 return urb;
2696}
2697
2698static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable)
2699{
2700 struct btusb_data *data = hci_get_drvdata(hdev);
2701 struct urb *urb;
2702
2703 if (!data->diag)
2704 return -ENODEV;
2705
2706 if (!test_bit(HCI_RUNNING, &hdev->flags))
2707 return -ENETDOWN;
2708
2709 urb = alloc_diag_urb(hdev, enable);
2710 if (IS_ERR(urb))
2711 return PTR_ERR(urb);
2712
2713 return submit_or_queue_tx_urb(hdev, urb);
2714}
2715#endif
2716
2717static int btusb_probe(struct usb_interface *intf,
2718 const struct usb_device_id *id)
2719{
2720 struct usb_endpoint_descriptor *ep_desc;
2721 struct btusb_data *data;
2722 struct hci_dev *hdev;
2723 unsigned ifnum_base;
2724 int i, err;
2725
2726 BT_DBG("intf %p id %p", intf, id);
2727
2728 /* interface numbers are hardcoded in the spec */
2729 if (intf->cur_altsetting->desc.bInterfaceNumber != 0) {
2730 if (!(id->driver_info & BTUSB_IFNUM_2))
2731 return -ENODEV;
2732 if (intf->cur_altsetting->desc.bInterfaceNumber != 2)
2733 return -ENODEV;
2734 }
2735
2736 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber;
2737
2738 if (!id->driver_info) {
2739 const struct usb_device_id *match;
2740
2741 match = usb_match_id(intf, blacklist_table);
2742 if (match)
2743 id = match;
2744 }
2745
2746 if (id->driver_info == BTUSB_IGNORE)
2747 return -ENODEV;
2748
2749 if (id->driver_info & BTUSB_ATH3012) {
2750 struct usb_device *udev = interface_to_usbdev(intf);
2751
2752 /* Old firmware would otherwise let ath3k driver load
2753 * patch and sysconfig files */
2754 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
2755 return -ENODEV;
2756 }
2757
2758 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
2759 if (!data)
2760 return -ENOMEM;
2761
2762 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2763 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2764
2765 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
2766 data->intr_ep = ep_desc;
2767 continue;
2768 }
2769
2770 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
2771 data->bulk_tx_ep = ep_desc;
2772 continue;
2773 }
2774
2775 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
2776 data->bulk_rx_ep = ep_desc;
2777 continue;
2778 }
2779 }
2780
2781 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
2782 return -ENODEV;
2783
2784 if (id->driver_info & BTUSB_AMP) {
2785 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
2786 data->cmdreq = 0x2b;
2787 } else {
2788 data->cmdreq_type = USB_TYPE_CLASS;
2789 data->cmdreq = 0x00;
2790 }
2791
2792 data->udev = interface_to_usbdev(intf);
2793 data->intf = intf;
2794
2795 INIT_WORK(&data->work, btusb_work);
2796 INIT_WORK(&data->waker, btusb_waker);
2797 init_usb_anchor(&data->deferred);
2798 init_usb_anchor(&data->tx_anchor);
2799 spin_lock_init(&data->txlock);
2800
2801 init_usb_anchor(&data->intr_anchor);
2802 init_usb_anchor(&data->bulk_anchor);
2803 init_usb_anchor(&data->isoc_anchor);
2804 init_usb_anchor(&data->diag_anchor);
2805 spin_lock_init(&data->rxlock);
2806
2807 if (id->driver_info & BTUSB_INTEL_NEW) {
2808 data->recv_event = btusb_recv_event_intel;
2809 data->recv_bulk = btusb_recv_bulk_intel;
2810 set_bit(BTUSB_BOOTLOADER, &data->flags);
2811 } else {
2812 data->recv_event = hci_recv_frame;
2813 data->recv_bulk = btusb_recv_bulk;
2814 }
2815
2816 hdev = hci_alloc_dev();
2817 if (!hdev)
2818 return -ENOMEM;
2819
2820 hdev->bus = HCI_USB;
2821 hci_set_drvdata(hdev, data);
2822
2823 if (id->driver_info & BTUSB_AMP)
2824 hdev->dev_type = HCI_AMP;
2825 else
2826 hdev->dev_type = HCI_BREDR;
2827
2828 data->hdev = hdev;
2829
2830 SET_HCIDEV_DEV(hdev, &intf->dev);
2831
2832 hdev->open = btusb_open;
2833 hdev->close = btusb_close;
2834 hdev->flush = btusb_flush;
2835 hdev->send = btusb_send_frame;
2836 hdev->notify = btusb_notify;
2837
2838 if (id->driver_info & BTUSB_BCM2045)
2839 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
2840
2841 if (id->driver_info & BTUSB_BCM92035)
2842 hdev->setup = btusb_setup_bcm92035;
2843
2844#ifdef CONFIG_BT_HCIBTUSB_BCM
2845 if (id->driver_info & BTUSB_BCM_PATCHRAM) {
2846 hdev->manufacturer = 15;
2847 hdev->setup = btbcm_setup_patchram;
2848 hdev->set_diag = btusb_bcm_set_diag;
2849 hdev->set_bdaddr = btbcm_set_bdaddr;
2850
2851 /* Broadcom LM_DIAG Interface numbers are hardcoded */
2852 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
2853 }
2854
2855 if (id->driver_info & BTUSB_BCM_APPLE) {
2856 hdev->manufacturer = 15;
2857 hdev->setup = btbcm_setup_apple;
2858 hdev->set_diag = btusb_bcm_set_diag;
2859
2860 /* Broadcom LM_DIAG Interface numbers are hardcoded */
2861 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
2862 }
2863#endif
2864
2865 if (id->driver_info & BTUSB_INTEL) {
2866 hdev->manufacturer = 2;
2867 hdev->setup = btusb_setup_intel;
2868 hdev->shutdown = btusb_shutdown_intel;
2869 hdev->set_diag = btintel_set_diag_mfg;
2870 hdev->set_bdaddr = btintel_set_bdaddr;
2871 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
2872 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
2873 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks);
2874 }
2875
2876 if (id->driver_info & BTUSB_INTEL_NEW) {
2877 hdev->manufacturer = 2;
2878 hdev->send = btusb_send_frame_intel;
2879 hdev->setup = btusb_setup_intel_new;
2880 hdev->hw_error = btintel_hw_error;
2881 hdev->set_diag = btintel_set_diag;
2882 hdev->set_bdaddr = btintel_set_bdaddr;
2883 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
2884 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks);
2885 }
2886
2887 if (id->driver_info & BTUSB_MARVELL)
2888 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
2889
2890 if (id->driver_info & BTUSB_SWAVE) {
2891 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
2892 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
2893 }
2894
2895 if (id->driver_info & BTUSB_INTEL_BOOT) {
2896 hdev->manufacturer = 2;
2897 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
2898 }
2899
2900 if (id->driver_info & BTUSB_ATH3012) {
2901 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
2902 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
2903 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
2904 }
2905
2906 if (id->driver_info & BTUSB_QCA_ROME) {
2907 data->setup_on_usb = btusb_setup_qca;
2908 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
2909 }
2910
2911#ifdef CONFIG_BT_HCIBTUSB_RTL
2912 if (id->driver_info & BTUSB_REALTEK) {
2913 hdev->setup = btrtl_setup_realtek;
2914
2915 /* Realtek devices lose their updated firmware over suspend,
2916 * but the USB hub doesn't notice any status change.
2917 * Explicitly request a device reset on resume.
2918 */
2919 set_bit(BTUSB_RESET_RESUME, &data->flags);
2920 }
2921#endif
2922
2923 if (id->driver_info & BTUSB_AMP) {
2924 /* AMP controllers do not support SCO packets */
2925 data->isoc = NULL;
2926 } else {
2927 /* Interface orders are hardcoded in the specification */
2928 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1);
2929 }
2930
2931 if (!reset)
2932 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
2933
2934 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
2935 if (!disable_scofix)
2936 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
2937 }
2938
2939 if (id->driver_info & BTUSB_BROKEN_ISOC)
2940 data->isoc = NULL;
2941
2942 if (id->driver_info & BTUSB_DIGIANSWER) {
2943 data->cmdreq_type = USB_TYPE_VENDOR;
2944 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
2945 }
2946
2947 if (id->driver_info & BTUSB_CSR) {
2948 struct usb_device *udev = data->udev;
2949 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
2950
2951 /* Old firmware would otherwise execute USB reset */
2952 if (bcdDevice < 0x117)
2953 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
2954
2955 /* Fake CSR devices with broken commands */
2956 if (bcdDevice <= 0x100 || bcdDevice == 0x134)
2957 hdev->setup = btusb_setup_csr;
2958
2959 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
2960 }
2961
2962 if (id->driver_info & BTUSB_SNIFFER) {
2963 struct usb_device *udev = data->udev;
2964
2965 /* New sniffer firmware has crippled HCI interface */
2966 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
2967 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
2968 }
2969
2970 if (id->driver_info & BTUSB_INTEL_BOOT) {
2971 /* A bug in the bootloader causes that interrupt interface is
2972 * only enabled after receiving SetInterface(0, AltSetting=0).
2973 */
2974 err = usb_set_interface(data->udev, 0, 0);
2975 if (err < 0) {
2976 BT_ERR("failed to set interface 0, alt 0 %d", err);
2977 hci_free_dev(hdev);
2978 return err;
2979 }
2980 }
2981
2982 if (data->isoc) {
2983 err = usb_driver_claim_interface(&btusb_driver,
2984 data->isoc, data);
2985 if (err < 0) {
2986 hci_free_dev(hdev);
2987 return err;
2988 }
2989 }
2990
2991#ifdef CONFIG_BT_HCIBTUSB_BCM
2992 if (data->diag) {
2993 if (!usb_driver_claim_interface(&btusb_driver,
2994 data->diag, data))
2995 __set_diag_interface(hdev);
2996 else
2997 data->diag = NULL;
2998 }
2999#endif
3000
3001 err = hci_register_dev(hdev);
3002 if (err < 0) {
3003 hci_free_dev(hdev);
3004 return err;
3005 }
3006
3007 usb_set_intfdata(intf, data);
3008
3009 return 0;
3010}
3011
3012static void btusb_disconnect(struct usb_interface *intf)
3013{
3014 struct btusb_data *data = usb_get_intfdata(intf);
3015 struct hci_dev *hdev;
3016
3017 BT_DBG("intf %p", intf);
3018
3019 if (!data)
3020 return;
3021
3022 hdev = data->hdev;
3023 usb_set_intfdata(data->intf, NULL);
3024
3025 if (data->isoc)
3026 usb_set_intfdata(data->isoc, NULL);
3027
3028 if (data->diag)
3029 usb_set_intfdata(data->diag, NULL);
3030
3031 hci_unregister_dev(hdev);
3032
3033 if (intf == data->intf) {
3034 if (data->isoc)
3035 usb_driver_release_interface(&btusb_driver, data->isoc);
3036 if (data->diag)
3037 usb_driver_release_interface(&btusb_driver, data->diag);
3038 } else if (intf == data->isoc) {
3039 if (data->diag)
3040 usb_driver_release_interface(&btusb_driver, data->diag);
3041 usb_driver_release_interface(&btusb_driver, data->intf);
3042 } else if (intf == data->diag) {
3043 usb_driver_release_interface(&btusb_driver, data->intf);
3044 if (data->isoc)
3045 usb_driver_release_interface(&btusb_driver, data->isoc);
3046 }
3047
3048 hci_free_dev(hdev);
3049}
3050
3051#ifdef CONFIG_PM
3052static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
3053{
3054 struct btusb_data *data = usb_get_intfdata(intf);
3055
3056 BT_DBG("intf %p", intf);
3057
3058 if (data->suspend_count++)
3059 return 0;
3060
3061 spin_lock_irq(&data->txlock);
3062 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
3063 set_bit(BTUSB_SUSPENDING, &data->flags);
3064 spin_unlock_irq(&data->txlock);
3065 } else {
3066 spin_unlock_irq(&data->txlock);
3067 data->suspend_count--;
3068 return -EBUSY;
3069 }
3070
3071 cancel_work_sync(&data->work);
3072
3073 btusb_stop_traffic(data);
3074 usb_kill_anchored_urbs(&data->tx_anchor);
3075
3076 /* Optionally request a device reset on resume, but only when
3077 * wakeups are disabled. If wakeups are enabled we assume the
3078 * device will stay powered up throughout suspend.
3079 */
3080 if (test_bit(BTUSB_RESET_RESUME, &data->flags) &&
3081 !device_may_wakeup(&data->udev->dev))
3082 data->udev->reset_resume = 1;
3083
3084 return 0;
3085}
3086
3087static void play_deferred(struct btusb_data *data)
3088{
3089 struct urb *urb;
3090 int err;
3091
3092 while ((urb = usb_get_from_anchor(&data->deferred))) {
3093 err = usb_submit_urb(urb, GFP_ATOMIC);
3094 if (err < 0)
3095 break;
3096
3097 data->tx_in_flight++;
3098 }
3099 usb_scuttle_anchored_urbs(&data->deferred);
3100}
3101
3102static int btusb_resume(struct usb_interface *intf)
3103{
3104 struct btusb_data *data = usb_get_intfdata(intf);
3105 struct hci_dev *hdev = data->hdev;
3106 int err = 0;
3107
3108 BT_DBG("intf %p", intf);
3109
3110 if (--data->suspend_count)
3111 return 0;
3112
3113 if (!test_bit(HCI_RUNNING, &hdev->flags))
3114 goto done;
3115
3116 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
3117 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
3118 if (err < 0) {
3119 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
3120 goto failed;
3121 }
3122 }
3123
3124 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
3125 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
3126 if (err < 0) {
3127 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
3128 goto failed;
3129 }
3130
3131 btusb_submit_bulk_urb(hdev, GFP_NOIO);
3132 }
3133
3134 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
3135 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
3136 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
3137 else
3138 btusb_submit_isoc_urb(hdev, GFP_NOIO);
3139 }
3140
3141 spin_lock_irq(&data->txlock);
3142 play_deferred(data);
3143 clear_bit(BTUSB_SUSPENDING, &data->flags);
3144 spin_unlock_irq(&data->txlock);
3145 schedule_work(&data->work);
3146
3147 return 0;
3148
3149failed:
3150 usb_scuttle_anchored_urbs(&data->deferred);
3151done:
3152 spin_lock_irq(&data->txlock);
3153 clear_bit(BTUSB_SUSPENDING, &data->flags);
3154 spin_unlock_irq(&data->txlock);
3155
3156 return err;
3157}
3158#endif
3159
3160static struct usb_driver btusb_driver = {
3161 .name = "btusb",
3162 .probe = btusb_probe,
3163 .disconnect = btusb_disconnect,
3164#ifdef CONFIG_PM
3165 .suspend = btusb_suspend,
3166 .resume = btusb_resume,
3167#endif
3168 .id_table = btusb_table,
3169 .supports_autosuspend = 1,
3170 .disable_hub_initiated_lpm = 1,
3171};
3172
3173module_usb_driver(btusb_driver);
3174
3175module_param(disable_scofix, bool, 0644);
3176MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
3177
3178module_param(force_scofix, bool, 0644);
3179MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
3180
3181module_param(reset, bool, 0644);
3182MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
3183
3184MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
3185MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
3186MODULE_VERSION(VERSION);
3187MODULE_LICENSE("GPL");