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Bluetooth: bpa10x: Fix missing BT_HCIUART dependency
[mirror_ubuntu-bionic-kernel.git] / drivers / bluetooth / btusb.c
CommitLineData
5e23b923
MH		 1/*
2 *
3 * Generic Bluetooth USB driver
4 *
9bfa35fe 5 * Copyright (C) 2005-2008 Marcel Holtmann <marcel@holtmann.org>
5e23b923
MH		 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
5e23b923 24#include <linux/module.h>
5e23b923 25#include <linux/usb.h>
dffd30ee 26#include <linux/firmware.h>
a2698a9b 27#include <asm/unaligned.h>
5e23b923
MH		 28
29#include <net/bluetooth/bluetooth.h>
30#include <net/bluetooth/hci_core.h>
31
4185a0f5 32#include "btintel.h"
1df1f591 33#include "btbcm.h"
db33c77d 34#include "btrtl.h"
1df1f591 35
34dced9b 36#define VERSION "0.8"
cfeb4145 37
90ab5ee9
RR		 38static bool disable_scofix;
39static bool force_scofix;
7a9d4020 40
917a3337 41static bool reset = true;
cfeb4145
MH		 42
43static struct usb_driver btusb_driver;
44
45#define BTUSB_IGNORE 0x01
7a9d4020
MH		 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
2d25f8b4 52#define BTUSB_ATH3012 0x80
dffd30ee 53#define BTUSB_INTEL 0x100
40df783d
MH		 54#define BTUSB_INTEL_BOOT 0x200
55#define BTUSB_BCM_PATCHRAM 0x400
ae8df494 56#define BTUSB_MARVELL 0x800
4fcef8ed 57#define BTUSB_SWAVE 0x1000
cda0dd78 58#define BTUSB_INTEL_NEW 0x2000
893ba544 59#define BTUSB_AMP 0x4000
3267c884 60#define BTUSB_QCA_ROME 0x8000
17b2772b 61#define BTUSB_BCM_APPLE 0x10000
a2698a9b 62#define BTUSB_REALTEK 0x20000
5e23b923 63
54265202 64static const struct usb_device_id btusb_table[] = {
5e23b923
MH		 65 /* Generic Bluetooth USB device */
66 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
67
893ba544
MH		 68 /* Generic Bluetooth AMP device */
69 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP },
70
d63b2826
DD		 71 /* Generic Bluetooth USB interface */
72 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) },
73
1fa6535f 74 /* Apple-specific (Broadcom) devices */
17b2772b
MH		 75 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01),
76 .driver_info = BTUSB_BCM_APPLE },
1fa6535f 77
178c059e
CYC		 78 /* MediaTek MT76x0E */
79 { USB_DEVICE(0x0e8d, 0x763f) },
80
c510eae3 81 /* Broadcom SoftSailing reporting vendor specific */
2e8b5063 82 { USB_DEVICE(0x0a5c, 0x21e1) },
c510eae3 83
3cd01976
NI		 84 /* Apple MacBookPro 7,1 */
85 { USB_DEVICE(0x05ac, 0x8213) },
86
0a79f674
CL		 87 /* Apple iMac11,1 */
88 { USB_DEVICE(0x05ac, 0x8215) },
89
9c047157
NI		 90 /* Apple MacBookPro6,2 */
91 { USB_DEVICE(0x05ac, 0x8218) },
92
3e3ede7d
EH		 93 /* Apple MacBookAir3,1, MacBookAir3,2 */
94 { USB_DEVICE(0x05ac, 0x821b) },
95
a63b723d
PAVM		 96 /* Apple MacBookAir4,1 */
97 { USB_DEVICE(0x05ac, 0x821f) },
98
88d377b6
MAP		 99 /* Apple MacBookPro8,2 */
100 { USB_DEVICE(0x05ac, 0x821a) },
101
f78b6826
JK		 102 /* Apple MacMini5,1 */
103 { USB_DEVICE(0x05ac, 0x8281) },
104
cfeb4145 105 /* AVM BlueFRITZ! USB v2.0 */
4fcef8ed 106 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE },
cfeb4145
MH		 107
108 /* Bluetooth Ultraport Module from IBM */
109 { USB_DEVICE(0x04bf, 0x030a) },
110
111 /* ALPS Modules with non-standard id */
112 { USB_DEVICE(0x044e, 0x3001) },
113 { USB_DEVICE(0x044e, 0x3002) },
114
115 /* Ericsson with non-standard id */
116 { USB_DEVICE(0x0bdb, 0x1002) },
117
118 /* Canyon CN-BTU1 with HID interfaces */
7a9d4020 119 { USB_DEVICE(0x0c10, 0x0000) },
cfeb4145 120
d13431ca
WJS		 121 /* Broadcom BCM20702A0 */
122 { USB_DEVICE(0x413c, 0x8197) },
123
d049f4e5
MH		 124 /* Broadcom BCM20702B0 (Dynex/Insignia) */
125 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM },
126
98514036 127 /* Foxconn - Hon Hai */
6029ddc2
HS		 128 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01),
129 .driver_info = BTUSB_BCM_PATCHRAM },
98514036 130
8f0c304c
MD		 131 /* Lite-On Technology - Broadcom based */
132 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01),
133 .driver_info = BTUSB_BCM_PATCHRAM },
134
0b880062 135 /* Broadcom devices with vendor specific id */
10d4c673
PG		 136 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01),
137 .driver_info = BTUSB_BCM_PATCHRAM },
92c385f4 138
c2aef6e8 139 /* ASUSTek Computer - Broadcom based */
9a5abdaa
RD		 140 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01),
141 .driver_info = BTUSB_BCM_PATCHRAM },
c2aef6e8 142
5bcecf32 143 /* Belkin F8065bf - Broadcom based */
6331c686
MH		 144 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01),
145 .driver_info = BTUSB_BCM_PATCHRAM },
5bcecf32 146
9113bfd8 147 /* IMC Networks - Broadcom based */
6331c686
MH		 148 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01),
149 .driver_info = BTUSB_BCM_PATCHRAM },
9113bfd8 150
40df783d 151 /* Intel Bluetooth USB Bootloader (RAM module) */
d92f2df0
MH		 152 { USB_DEVICE(0x8087, 0x0a5a),
153 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
40df783d 154
5e23b923
MH		 155 { } /* Terminating entry */
156};
157
158MODULE_DEVICE_TABLE(usb, btusb_table);
159
54265202 160static const struct usb_device_id blacklist_table[] = {
cfeb4145
MH		 161 /* CSR BlueCore devices */
162 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
163
164 /* Broadcom BCM2033 without firmware */
165 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
166
be93112a 167 /* Atheros 3011 with sflash firmware */
0b880062
AS		 168 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
169 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
2eeff0b4 170 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE },
0b880062 171 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
be93112a 172 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
6eda541d 173 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
2a7bcccc 174 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
be93112a 175
509e7861
CYC		 176 /* Atheros AR9285 Malbec with sflash firmware */
177 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
178
d9f51b51 179 /* Atheros 3012 with sflash firmware */
0b880062
AS		 180 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
181 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
182 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
183 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
184 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
692c062e 185 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
4b552bc9 186 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
0b880062
AS		 187 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
188 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
189 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
190 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
1fb4e09a 191 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
0b880062
AS		 192 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
193 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
7e730c7f 194 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
ec0810d2 195 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
134d3b35 196 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
0b880062
AS		 197 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
198 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
89d2975f 199 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
a735f9e2 200 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
d66629c1 201 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
2d25f8b4 202 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
94a32d10 203 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
07c0ea87 204 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
b131237c 205 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
1e56f1eb 206 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
0b880062 207 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
ebaf5795 208 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
0b880062 209 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
ac71311e 210 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
0a3658cc 211 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
ca79f232 212 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
0b880062
AS		 213 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
214 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
eed307e2 215 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
5b77a1f3 216 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
3bb30a7c 217 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
033efa92 218 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
fa2f1394 219 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
0d0cef61 220 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
d9f51b51 221
e9036e33
CYC		 222 /* Atheros AR5BBU12 with sflash firmware */
223 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
224
85d59726 225 /* Atheros AR5BBU12 with sflash firmware */
bc21fde2 226 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
0b880062 227 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
85d59726 228
3267c884 229 /* QCA ROME chipset */
2054111b 230 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME },
c9e44474
MH		 231 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME },
232 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME },
3267c884 233
cfeb4145 234 /* Broadcom BCM2035 */
7a9d4020 235 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
0b880062
AS		 236 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
237 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 238
239 /* Broadcom BCM2045 */
7a9d4020
MH		 240 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
241 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
bdbef3d6 242
cfeb4145 243 /* IBM/Lenovo ThinkPad with Broadcom chip */
7a9d4020
MH		 244 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
245 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 246
247 /* HP laptop with Broadcom chip */
7a9d4020 248 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 249
250 /* Dell laptop with Broadcom chip */
7a9d4020 251 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 252
5ddd4a60 253 /* Dell Wireless 370 and 410 devices */
7a9d4020 254 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
5ddd4a60 255 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 256
7a9d4020
MH		 257 /* Belkin F8T012 and F8T013 devices */
258 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
259 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 260
5ddd4a60
MH		 261 /* Asus WL-BTD202 device */
262 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
263
264 /* Kensington Bluetooth USB adapter */
265 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
266
cfeb4145
MH		 267 /* RTX Telecom based adapters with buggy SCO support */
268 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
269 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
270
271 /* CONWISE Technology based adapters with buggy SCO support */
272 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
273
4fcef8ed 274 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
2eeac871 275 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE },
4fcef8ed 276
cfeb4145
MH		 277 /* Digianswer devices */
278 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
279 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
280
281 /* CSR BlueCore Bluetooth Sniffer */
4f64fa80
MH		 282 { USB_DEVICE(0x0a12, 0x0002),
283 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
cfeb4145
MH		 284
285 /* Frontline ComProbe Bluetooth Sniffer */
4f64fa80
MH		 286 { USB_DEVICE(0x16d3, 0x0002),
287 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
cfeb4145 288
cb1ee89f
MH		 289 /* Marvell Bluetooth devices */
290 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
291 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
292
d0ac9eb7 293 /* Intel Bluetooth devices */
407550fe 294 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
dffd30ee 295 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
ef4e5e4a 296 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL },
cda0dd78 297 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_NEW },
dffd30ee 298
d0ac9eb7
MH		 299 /* Other Intel Bluetooth devices */
300 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
301 .driver_info = BTUSB_IGNORE },
ae8df494 302
a2698a9b
DD		 303 /* Realtek Bluetooth devices */
304 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
305 .driver_info = BTUSB_REALTEK },
306
307 /* Additional Realtek 8723AE Bluetooth devices */
308 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
309 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
310
311 /* Additional Realtek 8723BE Bluetooth devices */
312 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
313 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
314 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
315 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
316 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
317
318 /* Additional Realtek 8821AE Bluetooth devices */
319 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
320 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
321 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
322 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
323 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
324
4481c076
PP		 325 /* Silicon Wave based devices */
326 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE },
327
5e23b923
MH		 328 { } /* Terminating entry */
329};
330
9bfa35fe
MH		 331#define BTUSB_MAX_ISOC_FRAMES 10
332
5e23b923
MH		 333#define BTUSB_INTR_RUNNING 0
334#define BTUSB_BULK_RUNNING 1
9bfa35fe 335#define BTUSB_ISOC_RUNNING 2
7bee549e 336#define BTUSB_SUSPENDING 3
08b8b6c4 337#define BTUSB_DID_ISO_RESUME 4
cda0dd78
MH		 338#define BTUSB_BOOTLOADER 5
339#define BTUSB_DOWNLOADING 6
ce6bb929 340#define BTUSB_FIRMWARE_LOADED 7
cda0dd78 341#define BTUSB_FIRMWARE_FAILED 8
ce6bb929 342#define BTUSB_BOOTING 9
04b8c814 343#define BTUSB_RESET_RESUME 10
5e23b923
MH		 344
345struct btusb_data {
346 struct hci_dev *hdev;
347 struct usb_device *udev;
5fbcd260 348 struct usb_interface *intf;
9bfa35fe 349 struct usb_interface *isoc;
5e23b923 350
5e23b923
MH		 351 unsigned long flags;
352
353 struct work_struct work;
7bee549e 354 struct work_struct waker;
5e23b923 355
803b5836 356 struct usb_anchor deferred;
5e23b923 357 struct usb_anchor tx_anchor;
803b5836
MH		 358 int tx_in_flight;
359 spinlock_t txlock;
360
5e23b923
MH		 361 struct usb_anchor intr_anchor;
362 struct usb_anchor bulk_anchor;
9bfa35fe 363 struct usb_anchor isoc_anchor;
803b5836
MH		 364 spinlock_t rxlock;
365
366 struct sk_buff *evt_skb;
367 struct sk_buff *acl_skb;
368 struct sk_buff *sco_skb;
5e23b923
MH		 369
370 struct usb_endpoint_descriptor *intr_ep;
371 struct usb_endpoint_descriptor *bulk_tx_ep;
372 struct usb_endpoint_descriptor *bulk_rx_ep;
9bfa35fe
MH		 373 struct usb_endpoint_descriptor *isoc_tx_ep;
374 struct usb_endpoint_descriptor *isoc_rx_ep;
375
7a9d4020 376 __u8 cmdreq_type;
893ba544 377 __u8 cmdreq;
7a9d4020 378
43c2e57f 379 unsigned int sco_num;
9bfa35fe 380 int isoc_altsetting;
6a88adf2 381 int suspend_count;
2cbd3f5c 382
97307f51 383 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
2cbd3f5c 384 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
ace31982
KBYT		 385
386 int (*setup_on_usb)(struct hci_dev *hdev);
5e23b923
MH		 387};
388
803b5836
MH		 389static inline void btusb_free_frags(struct btusb_data *data)
390{
391 unsigned long flags;
392
393 spin_lock_irqsave(&data->rxlock, flags);
394
395 kfree_skb(data->evt_skb);
396 data->evt_skb = NULL;
397
398 kfree_skb(data->acl_skb);
399 data->acl_skb = NULL;
400
401 kfree_skb(data->sco_skb);
402 data->sco_skb = NULL;
403
404 spin_unlock_irqrestore(&data->rxlock, flags);
405}
406
1ffa4ad0
MH		 407static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
408{
803b5836
MH		 409 struct sk_buff *skb;
410 int err = 0;
411
412 spin_lock(&data->rxlock);
413 skb = data->evt_skb;
414
415 while (count) {
416 int len;
417
418 if (!skb) {
419 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
420 if (!skb) {
421 err = -ENOMEM;
422 break;
423 }
424
425 bt_cb(skb)->pkt_type = HCI_EVENT_PKT;
426 bt_cb(skb)->expect = HCI_EVENT_HDR_SIZE;
427 }
428
429 len = min_t(uint, bt_cb(skb)->expect, count);
430 memcpy(skb_put(skb, len), buffer, len);
431
432 count -= len;
433 buffer += len;
434 bt_cb(skb)->expect -= len;
435
436 if (skb->len == HCI_EVENT_HDR_SIZE) {
437 /* Complete event header */
438 bt_cb(skb)->expect = hci_event_hdr(skb)->plen;
439
440 if (skb_tailroom(skb) < bt_cb(skb)->expect) {
441 kfree_skb(skb);
442 skb = NULL;
443
444 err = -EILSEQ;
445 break;
446 }
447 }
448
449 if (bt_cb(skb)->expect == 0) {
450 /* Complete frame */
97307f51 451 data->recv_event(data->hdev, skb);
803b5836
MH		 452 skb = NULL;
453 }
454 }
455
456 data->evt_skb = skb;
457 spin_unlock(&data->rxlock);
458
459 return err;
1ffa4ad0
MH		 460}
461
462static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
463{
803b5836
MH		 464 struct sk_buff *skb;
465 int err = 0;
466
467 spin_lock(&data->rxlock);
468 skb = data->acl_skb;
469
470 while (count) {
471 int len;
472
473 if (!skb) {
474 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
475 if (!skb) {
476 err = -ENOMEM;
477 break;
478 }
479
480 bt_cb(skb)->pkt_type = HCI_ACLDATA_PKT;
481 bt_cb(skb)->expect = HCI_ACL_HDR_SIZE;
482 }
483
484 len = min_t(uint, bt_cb(skb)->expect, count);
485 memcpy(skb_put(skb, len), buffer, len);
486
487 count -= len;
488 buffer += len;
489 bt_cb(skb)->expect -= len;
490
491 if (skb->len == HCI_ACL_HDR_SIZE) {
492 __le16 dlen = hci_acl_hdr(skb)->dlen;
493
494 /* Complete ACL header */
495 bt_cb(skb)->expect = __le16_to_cpu(dlen);
496
497 if (skb_tailroom(skb) < bt_cb(skb)->expect) {
498 kfree_skb(skb);
499 skb = NULL;
500
501 err = -EILSEQ;
502 break;
503 }
504 }
505
506 if (bt_cb(skb)->expect == 0) {
507 /* Complete frame */
508 hci_recv_frame(data->hdev, skb);
509 skb = NULL;
510 }
511 }
512
513 data->acl_skb = skb;
514 spin_unlock(&data->rxlock);
515
516 return err;
1ffa4ad0
MH		 517}
518
519static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
520{
803b5836
MH		 521 struct sk_buff *skb;
522 int err = 0;
523
524 spin_lock(&data->rxlock);
525 skb = data->sco_skb;
526
527 while (count) {
528 int len;
529
530 if (!skb) {
531 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
532 if (!skb) {
533 err = -ENOMEM;
534 break;
535 }
536
537 bt_cb(skb)->pkt_type = HCI_SCODATA_PKT;
538 bt_cb(skb)->expect = HCI_SCO_HDR_SIZE;
539 }
540
541 len = min_t(uint, bt_cb(skb)->expect, count);
542 memcpy(skb_put(skb, len), buffer, len);
543
544 count -= len;
545 buffer += len;
546 bt_cb(skb)->expect -= len;
547
548 if (skb->len == HCI_SCO_HDR_SIZE) {
549 /* Complete SCO header */
550 bt_cb(skb)->expect = hci_sco_hdr(skb)->dlen;
551
552 if (skb_tailroom(skb) < bt_cb(skb)->expect) {
553 kfree_skb(skb);
554 skb = NULL;
555
556 err = -EILSEQ;
557 break;
558 }
559 }
560
561 if (bt_cb(skb)->expect == 0) {
562 /* Complete frame */
563 hci_recv_frame(data->hdev, skb);
564 skb = NULL;
565 }
566 }
567
568 data->sco_skb = skb;
569 spin_unlock(&data->rxlock);
570
571 return err;
1ffa4ad0
MH		 572}
573
5e23b923
MH		 574static void btusb_intr_complete(struct urb *urb)
575{
576 struct hci_dev *hdev = urb->context;
155961e8 577 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 578 int err;
579
89e7533d
MH		 580 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
581 urb->actual_length);
5e23b923
MH		 582
583 if (!test_bit(HCI_RUNNING, &hdev->flags))
584 return;
585
586 if (urb->status == 0) {
9bfa35fe
MH		 587 hdev->stat.byte_rx += urb->actual_length;
588
1ffa4ad0
MH		 589 if (btusb_recv_intr(data, urb->transfer_buffer,
590 urb->actual_length) < 0) {
5e23b923
MH		 591 BT_ERR("%s corrupted event packet", hdev->name);
592 hdev->stat.err_rx++;
593 }
85560c4a
CC		 594 } else if (urb->status == -ENOENT) {
595 /* Avoid suspend failed when usb_kill_urb */
596 return;
5e23b923
MH		 597 }
598
599 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
600 return;
601
7bee549e 602 usb_mark_last_busy(data->udev);
5e23b923
MH		 603 usb_anchor_urb(urb, &data->intr_anchor);
604
605 err = usb_submit_urb(urb, GFP_ATOMIC);
606 if (err < 0) {
4935f1c1
PB		 607 /* -EPERM: urb is being killed;
608 * -ENODEV: device got disconnected */
609 if (err != -EPERM && err != -ENODEV)
61faddf6 610 BT_ERR("%s urb %p failed to resubmit (%d)",
89e7533d 611 hdev->name, urb, -err);
5e23b923
MH		 612 usb_unanchor_urb(urb);
613 }
614}
615
2eda66f4 616static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
5e23b923 617{
155961e8 618 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 619 struct urb *urb;
620 unsigned char *buf;
621 unsigned int pipe;
622 int err, size;
623
624 BT_DBG("%s", hdev->name);
625
9bfa35fe
MH		 626 if (!data->intr_ep)
627 return -ENODEV;
628
2eda66f4 629 urb = usb_alloc_urb(0, mem_flags);
5e23b923
MH		 630 if (!urb)
631 return -ENOMEM;
632
633 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
634
2eda66f4 635 buf = kmalloc(size, mem_flags);
5e23b923
MH		 636 if (!buf) {
637 usb_free_urb(urb);
638 return -ENOMEM;
639 }
640
641 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
642
643 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
89e7533d 644 btusb_intr_complete, hdev, data->intr_ep->bInterval);
5e23b923
MH		 645
646 urb->transfer_flags |= URB_FREE_BUFFER;
647
648 usb_anchor_urb(urb, &data->intr_anchor);
649
2eda66f4 650 err = usb_submit_urb(urb, mem_flags);
5e23b923 651 if (err < 0) {
d4b8d1c9
PB		 652 if (err != -EPERM && err != -ENODEV)
653 BT_ERR("%s urb %p submission failed (%d)",
89e7533d 654 hdev->name, urb, -err);
5e23b923 655 usb_unanchor_urb(urb);
5e23b923
MH		 656 }
657
658 usb_free_urb(urb);
659
660 return err;
661}
662
663static void btusb_bulk_complete(struct urb *urb)
664{
665 struct hci_dev *hdev = urb->context;
155961e8 666 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 667 int err;
668
89e7533d
MH		 669 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
670 urb->actual_length);
5e23b923
MH		 671
672 if (!test_bit(HCI_RUNNING, &hdev->flags))
673 return;
674
675 if (urb->status == 0) {
9bfa35fe
MH		 676 hdev->stat.byte_rx += urb->actual_length;
677
2cbd3f5c 678 if (data->recv_bulk(data, urb->transfer_buffer,
1ffa4ad0 679 urb->actual_length) < 0) {
5e23b923
MH		 680 BT_ERR("%s corrupted ACL packet", hdev->name);
681 hdev->stat.err_rx++;
682 }
85560c4a
CC		 683 } else if (urb->status == -ENOENT) {
684 /* Avoid suspend failed when usb_kill_urb */
685 return;
5e23b923
MH		 686 }
687
688 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
689 return;
690
691 usb_anchor_urb(urb, &data->bulk_anchor);
652fd781 692 usb_mark_last_busy(data->udev);
5e23b923
MH		 693
694 err = usb_submit_urb(urb, GFP_ATOMIC);
695 if (err < 0) {
4935f1c1
PB		 696 /* -EPERM: urb is being killed;
697 * -ENODEV: device got disconnected */
698 if (err != -EPERM && err != -ENODEV)
61faddf6 699 BT_ERR("%s urb %p failed to resubmit (%d)",
89e7533d 700 hdev->name, urb, -err);
5e23b923
MH		 701 usb_unanchor_urb(urb);
702 }
703}
704
2eda66f4 705static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
5e23b923 706{
155961e8 707 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 708 struct urb *urb;
709 unsigned char *buf;
710 unsigned int pipe;
290ba200 711 int err, size = HCI_MAX_FRAME_SIZE;
5e23b923
MH		 712
713 BT_DBG("%s", hdev->name);
714
9bfa35fe
MH		 715 if (!data->bulk_rx_ep)
716 return -ENODEV;
717
2eda66f4 718 urb = usb_alloc_urb(0, mem_flags);
5e23b923
MH		 719 if (!urb)
720 return -ENOMEM;
721
2eda66f4 722 buf = kmalloc(size, mem_flags);
5e23b923
MH		 723 if (!buf) {
724 usb_free_urb(urb);
725 return -ENOMEM;
726 }
727
728 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
729
89e7533d
MH		 730 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
731 btusb_bulk_complete, hdev);
5e23b923
MH		 732
733 urb->transfer_flags |= URB_FREE_BUFFER;
734
7bee549e 735 usb_mark_last_busy(data->udev);
5e23b923
MH		 736 usb_anchor_urb(urb, &data->bulk_anchor);
737
2eda66f4 738 err = usb_submit_urb(urb, mem_flags);
5e23b923 739 if (err < 0) {
d4b8d1c9
PB		 740 if (err != -EPERM && err != -ENODEV)
741 BT_ERR("%s urb %p submission failed (%d)",
89e7533d 742 hdev->name, urb, -err);
5e23b923 743 usb_unanchor_urb(urb);
5e23b923
MH		 744 }
745
746 usb_free_urb(urb);
747
748 return err;
749}
750
9bfa35fe
MH		 751static void btusb_isoc_complete(struct urb *urb)
752{
753 struct hci_dev *hdev = urb->context;
155961e8 754 struct btusb_data *data = hci_get_drvdata(hdev);
9bfa35fe
MH		 755 int i, err;
756
89e7533d
MH		 757 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
758 urb->actual_length);
9bfa35fe
MH		 759
760 if (!test_bit(HCI_RUNNING, &hdev->flags))
761 return;
762
763 if (urb->status == 0) {
764 for (i = 0; i < urb->number_of_packets; i++) {
765 unsigned int offset = urb->iso_frame_desc[i].offset;
766 unsigned int length = urb->iso_frame_desc[i].actual_length;
767
768 if (urb->iso_frame_desc[i].status)
769 continue;
770
771 hdev->stat.byte_rx += length;
772
1ffa4ad0
MH		 773 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
774 length) < 0) {
9bfa35fe
MH		 775 BT_ERR("%s corrupted SCO packet", hdev->name);
776 hdev->stat.err_rx++;
777 }
778 }
85560c4a
CC		 779 } else if (urb->status == -ENOENT) {
780 /* Avoid suspend failed when usb_kill_urb */
781 return;
9bfa35fe
MH		 782 }
783
784 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
785 return;
786
787 usb_anchor_urb(urb, &data->isoc_anchor);
788
789 err = usb_submit_urb(urb, GFP_ATOMIC);
790 if (err < 0) {
4935f1c1
PB		 791 /* -EPERM: urb is being killed;
792 * -ENODEV: device got disconnected */
793 if (err != -EPERM && err != -ENODEV)
61faddf6 794 BT_ERR("%s urb %p failed to resubmit (%d)",
89e7533d 795 hdev->name, urb, -err);
9bfa35fe
MH		 796 usb_unanchor_urb(urb);
797 }
798}
799
42b16b3f 800static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
9bfa35fe
MH		 801{
802 int i, offset = 0;
803
804 BT_DBG("len %d mtu %d", len, mtu);
805
806 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
807 i++, offset += mtu, len -= mtu) {
808 urb->iso_frame_desc[i].offset = offset;
809 urb->iso_frame_desc[i].length = mtu;
810 }
811
812 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
813 urb->iso_frame_desc[i].offset = offset;
814 urb->iso_frame_desc[i].length = len;
815 i++;
816 }
817
818 urb->number_of_packets = i;
819}
820
2eda66f4 821static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
9bfa35fe 822{
155961e8 823 struct btusb_data *data = hci_get_drvdata(hdev);
9bfa35fe
MH		 824 struct urb *urb;
825 unsigned char *buf;
826 unsigned int pipe;
827 int err, size;
828
829 BT_DBG("%s", hdev->name);
830
831 if (!data->isoc_rx_ep)
832 return -ENODEV;
833
2eda66f4 834 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
9bfa35fe
MH		 835 if (!urb)
836 return -ENOMEM;
837
838 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
839 BTUSB_MAX_ISOC_FRAMES;
840
2eda66f4 841 buf = kmalloc(size, mem_flags);
9bfa35fe
MH		 842 if (!buf) {
843 usb_free_urb(urb);
844 return -ENOMEM;
845 }
846
847 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
848
fa0fb93f 849 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
89e7533d 850 hdev, data->isoc_rx_ep->bInterval);
9bfa35fe 851
89e7533d 852 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
9bfa35fe
MH		 853
854 __fill_isoc_descriptor(urb, size,
89e7533d 855 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
9bfa35fe
MH		 856
857 usb_anchor_urb(urb, &data->isoc_anchor);
858
2eda66f4 859 err = usb_submit_urb(urb, mem_flags);
9bfa35fe 860 if (err < 0) {
d4b8d1c9
PB		 861 if (err != -EPERM && err != -ENODEV)
862 BT_ERR("%s urb %p submission failed (%d)",
89e7533d 863 hdev->name, urb, -err);
9bfa35fe 864 usb_unanchor_urb(urb);
9bfa35fe
MH		 865 }
866
867 usb_free_urb(urb);
868
869 return err;
870}
871
5e23b923 872static void btusb_tx_complete(struct urb *urb)
7bee549e
ON		 873{
874 struct sk_buff *skb = urb->context;
89e7533d 875 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
155961e8 876 struct btusb_data *data = hci_get_drvdata(hdev);
7bee549e 877
89e7533d
MH		 878 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
879 urb->actual_length);
7bee549e
ON		 880
881 if (!test_bit(HCI_RUNNING, &hdev->flags))
882 goto done;
883
884 if (!urb->status)
885 hdev->stat.byte_tx += urb->transfer_buffer_length;
886 else
887 hdev->stat.err_tx++;
888
889done:
890 spin_lock(&data->txlock);
891 data->tx_in_flight--;
892 spin_unlock(&data->txlock);
893
894 kfree(urb->setup_packet);
895
896 kfree_skb(skb);
897}
898
899static void btusb_isoc_tx_complete(struct urb *urb)
5e23b923
MH		 900{
901 struct sk_buff *skb = urb->context;
89e7533d 902 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
5e23b923 903
89e7533d
MH		 904 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
905 urb->actual_length);
5e23b923
MH		 906
907 if (!test_bit(HCI_RUNNING, &hdev->flags))
908 goto done;
909
910 if (!urb->status)
911 hdev->stat.byte_tx += urb->transfer_buffer_length;
912 else
913 hdev->stat.err_tx++;
914
915done:
916 kfree(urb->setup_packet);
917
918 kfree_skb(skb);
919}
920
921static int btusb_open(struct hci_dev *hdev)
922{
155961e8 923 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 924 int err;
925
926 BT_DBG("%s", hdev->name);
927
ace31982
KBYT		 928 /* Patching USB firmware files prior to starting any URBs of HCI path
929 * It is more safe to use USB bulk channel for downloading USB patch
930 */
931 if (data->setup_on_usb) {
932 err = data->setup_on_usb(hdev);
eb50042f 933 if (err < 0)
ace31982
KBYT		 934 return err;
935 }
936
7bee549e
ON		 937 err = usb_autopm_get_interface(data->intf);
938 if (err < 0)
939 return err;
940
941 data->intf->needs_remote_wakeup = 1;
942
5e23b923 943 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
7bee549e 944 goto done;
5e23b923 945
2eda66f4 946 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
43c2e57f
MH		 947 if (err < 0)
948 goto failed;
949
950 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
5e23b923 951 if (err < 0) {
43c2e57f
MH		 952 usb_kill_anchored_urbs(&data->intr_anchor);
953 goto failed;
5e23b923
MH		 954 }
955
43c2e57f
MH		 956 set_bit(BTUSB_BULK_RUNNING, &data->flags);
957 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
958
7bee549e
ON		 959done:
960 usb_autopm_put_interface(data->intf);
43c2e57f
MH		 961 return 0;
962
963failed:
964 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
7bee549e 965 usb_autopm_put_interface(data->intf);
5e23b923
MH		 966 return err;
967}
968
7bee549e
ON		 969static void btusb_stop_traffic(struct btusb_data *data)
970{
971 usb_kill_anchored_urbs(&data->intr_anchor);
972 usb_kill_anchored_urbs(&data->bulk_anchor);
973 usb_kill_anchored_urbs(&data->isoc_anchor);
974}
975
5e23b923
MH		 976static int btusb_close(struct hci_dev *hdev)
977{
155961e8 978 struct btusb_data *data = hci_get_drvdata(hdev);
7bee549e 979 int err;
5e23b923
MH		 980
981 BT_DBG("%s", hdev->name);
982
e8c3c3d2 983 cancel_work_sync(&data->work);
404291ac 984 cancel_work_sync(&data->waker);
e8c3c3d2 985
9bfa35fe 986 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
5e23b923 987 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
5e23b923 988 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
7bee549e
ON		 989
990 btusb_stop_traffic(data);
803b5836
MH		 991 btusb_free_frags(data);
992
7bee549e
ON		 993 err = usb_autopm_get_interface(data->intf);
994 if (err < 0)
7b8e2c1d 995 goto failed;
7bee549e
ON		 996
997 data->intf->needs_remote_wakeup = 0;
998 usb_autopm_put_interface(data->intf);
5e23b923 999
7b8e2c1d
ON		 1000failed:
1001 usb_scuttle_anchored_urbs(&data->deferred);
5e23b923
MH		 1002 return 0;
1003}
1004
1005static int btusb_flush(struct hci_dev *hdev)
1006{
155961e8 1007 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 1008
1009 BT_DBG("%s", hdev->name);
1010
1011 usb_kill_anchored_urbs(&data->tx_anchor);
803b5836 1012 btusb_free_frags(data);
5e23b923
MH		 1013
1014 return 0;
1015}
1016
047b2ec8 1017static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
5e23b923 1018{
155961e8 1019 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 1020 struct usb_ctrlrequest *dr;
1021 struct urb *urb;
1022 unsigned int pipe;
5e23b923 1023
047b2ec8
MH		 1024 urb = usb_alloc_urb(0, GFP_KERNEL);
1025 if (!urb)
1026 return ERR_PTR(-ENOMEM);
5e23b923 1027
047b2ec8
MH		 1028 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
1029 if (!dr) {
1030 usb_free_urb(urb);
1031 return ERR_PTR(-ENOMEM);
1032 }
5e23b923 1033
047b2ec8 1034 dr->bRequestType = data->cmdreq_type;
893ba544 1035 dr->bRequest = data->cmdreq;
047b2ec8
MH		 1036 dr->wIndex = 0;
1037 dr->wValue = 0;
1038 dr->wLength = __cpu_to_le16(skb->len);
7bd8f09f 1039
047b2ec8 1040 pipe = usb_sndctrlpipe(data->udev, 0x00);
5e23b923 1041
89e7533d 1042 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
047b2ec8 1043 skb->data, skb->len, btusb_tx_complete, skb);
5e23b923 1044
89e7533d 1045 skb->dev = (void *)hdev;
5e23b923 1046
047b2ec8
MH		 1047 return urb;
1048}
5e23b923 1049
047b2ec8
MH		 1050static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
1051{
1052 struct btusb_data *data = hci_get_drvdata(hdev);
1053 struct urb *urb;
1054 unsigned int pipe;
5e23b923 1055
047b2ec8
MH		 1056 if (!data->bulk_tx_ep)
1057 return ERR_PTR(-ENODEV);
9bfa35fe 1058
047b2ec8
MH		 1059 urb = usb_alloc_urb(0, GFP_KERNEL);
1060 if (!urb)
1061 return ERR_PTR(-ENOMEM);
5e23b923 1062
047b2ec8 1063 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
5e23b923 1064
047b2ec8
MH		 1065 usb_fill_bulk_urb(urb, data->udev, pipe,
1066 skb->data, skb->len, btusb_tx_complete, skb);
5e23b923 1067
89e7533d 1068 skb->dev = (void *)hdev;
5e23b923 1069
047b2ec8
MH		 1070 return urb;
1071}
9bfa35fe 1072
047b2ec8
MH		 1073static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
1074{
1075 struct btusb_data *data = hci_get_drvdata(hdev);
1076 struct urb *urb;
1077 unsigned int pipe;
9bfa35fe 1078
047b2ec8
MH		 1079 if (!data->isoc_tx_ep)
1080 return ERR_PTR(-ENODEV);
9bfa35fe 1081
047b2ec8
MH		 1082 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
1083 if (!urb)
1084 return ERR_PTR(-ENOMEM);
9bfa35fe 1085
047b2ec8 1086 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
9bfa35fe 1087
047b2ec8
MH		 1088 usb_fill_int_urb(urb, data->udev, pipe,
1089 skb->data, skb->len, btusb_isoc_tx_complete,
1090 skb, data->isoc_tx_ep->bInterval);
9bfa35fe 1091
047b2ec8 1092 urb->transfer_flags = URB_ISO_ASAP;
5e23b923 1093
047b2ec8
MH		 1094 __fill_isoc_descriptor(urb, skb->len,
1095 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
5e23b923 1096
89e7533d 1097 skb->dev = (void *)hdev;
047b2ec8
MH		 1098
1099 return urb;
1100}
1101
1102static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
1103{
1104 struct btusb_data *data = hci_get_drvdata(hdev);
1105 int err;
7bee549e 1106
5e23b923
MH		 1107 usb_anchor_urb(urb, &data->tx_anchor);
1108
e9753eff 1109 err = usb_submit_urb(urb, GFP_KERNEL);
5e23b923 1110 if (err < 0) {
5a9b80e2
PB		 1111 if (err != -EPERM && err != -ENODEV)
1112 BT_ERR("%s urb %p submission failed (%d)",
89e7533d 1113 hdev->name, urb, -err);
5e23b923
MH		 1114 kfree(urb->setup_packet);
1115 usb_unanchor_urb(urb);
7bee549e
ON		 1116 } else {
1117 usb_mark_last_busy(data->udev);
5e23b923
MH		 1118 }
1119
54a8a79c 1120 usb_free_urb(urb);
5e23b923
MH		 1121 return err;
1122}
1123
047b2ec8
MH		 1124static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
1125{
1126 struct btusb_data *data = hci_get_drvdata(hdev);
1127 unsigned long flags;
1128 bool suspending;
1129
1130 spin_lock_irqsave(&data->txlock, flags);
1131 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
1132 if (!suspending)
1133 data->tx_in_flight++;
1134 spin_unlock_irqrestore(&data->txlock, flags);
1135
1136 if (!suspending)
1137 return submit_tx_urb(hdev, urb);
1138
1139 usb_anchor_urb(urb, &data->deferred);
1140 schedule_work(&data->waker);
1141
1142 usb_free_urb(urb);
1143 return 0;
1144}
1145
1146static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
1147{
1148 struct urb *urb;
1149
1150 BT_DBG("%s", hdev->name);
1151
047b2ec8
MH		 1152 switch (bt_cb(skb)->pkt_type) {
1153 case HCI_COMMAND_PKT:
1154 urb = alloc_ctrl_urb(hdev, skb);
1155 if (IS_ERR(urb))
1156 return PTR_ERR(urb);
1157
1158 hdev->stat.cmd_tx++;
1159 return submit_or_queue_tx_urb(hdev, urb);
1160
1161 case HCI_ACLDATA_PKT:
1162 urb = alloc_bulk_urb(hdev, skb);
1163 if (IS_ERR(urb))
1164 return PTR_ERR(urb);
1165
1166 hdev->stat.acl_tx++;
1167 return submit_or_queue_tx_urb(hdev, urb);
1168
1169 case HCI_SCODATA_PKT:
1170 if (hci_conn_num(hdev, SCO_LINK) < 1)
1171 return -ENODEV;
1172
1173 urb = alloc_isoc_urb(hdev, skb);
1174 if (IS_ERR(urb))
1175 return PTR_ERR(urb);
1176
1177 hdev->stat.sco_tx++;
1178 return submit_tx_urb(hdev, urb);
1179 }
1180
1181 return -EILSEQ;
1182}
1183
5e23b923
MH		 1184static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
1185{
155961e8 1186 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 1187
1188 BT_DBG("%s evt %d", hdev->name, evt);
1189
014f7bc7
MH		 1190 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
1191 data->sco_num = hci_conn_num(hdev, SCO_LINK);
43c2e57f 1192 schedule_work(&data->work);
a780efa8 1193 }
5e23b923
MH		 1194}
1195
42b16b3f 1196static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
9bfa35fe 1197{
155961e8 1198 struct btusb_data *data = hci_get_drvdata(hdev);
9bfa35fe
MH		 1199 struct usb_interface *intf = data->isoc;
1200 struct usb_endpoint_descriptor *ep_desc;
1201 int i, err;
1202
1203 if (!data->isoc)
1204 return -ENODEV;
1205
1206 err = usb_set_interface(data->udev, 1, altsetting);
1207 if (err < 0) {
1208 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
1209 return err;
1210 }
1211
1212 data->isoc_altsetting = altsetting;
1213
1214 data->isoc_tx_ep = NULL;
1215 data->isoc_rx_ep = NULL;
1216
1217 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1218 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1219
1220 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
1221 data->isoc_tx_ep = ep_desc;
1222 continue;
1223 }
1224
1225 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
1226 data->isoc_rx_ep = ep_desc;
1227 continue;
1228 }
1229 }
1230
1231 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
1232 BT_ERR("%s invalid SCO descriptors", hdev->name);
1233 return -ENODEV;
1234 }
1235
1236 return 0;
1237}
1238
5e23b923
MH		 1239static void btusb_work(struct work_struct *work)
1240{
1241 struct btusb_data *data = container_of(work, struct btusb_data, work);
1242 struct hci_dev *hdev = data->hdev;
f4001d28 1243 int new_alts;
7bee549e 1244 int err;
5e23b923 1245
014f7bc7 1246 if (data->sco_num > 0) {
08b8b6c4 1247 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
8efdd0cd 1248 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
7bee549e
ON		 1249 if (err < 0) {
1250 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1251 usb_kill_anchored_urbs(&data->isoc_anchor);
1252 return;
1253 }
1254
08b8b6c4 1255 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
7bee549e 1256 }
f4001d28
MA		 1257
1258 if (hdev->voice_setting & 0x0020) {
1259 static const int alts[3] = { 2, 4, 5 };
89e7533d 1260
014f7bc7 1261 new_alts = alts[data->sco_num - 1];
f4001d28 1262 } else {
014f7bc7 1263 new_alts = data->sco_num;
f4001d28
MA		 1264 }
1265
1266 if (data->isoc_altsetting != new_alts) {
9bfa35fe
MH		 1267 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1268 usb_kill_anchored_urbs(&data->isoc_anchor);
1269
8f9d02f4
KP		 1270 /* When isochronous alternate setting needs to be
1271 * changed, because SCO connection has been added
1272 * or removed, a packet fragment may be left in the
1273 * reassembling state. This could lead to wrongly
1274 * assembled fragments.
1275 *
1276 * Clear outstanding fragment when selecting a new
1277 * alternate setting.
1278 */
1279 spin_lock(&data->rxlock);
1280 kfree_skb(data->sco_skb);
1281 data->sco_skb = NULL;
1282 spin_unlock(&data->rxlock);
1283
f4001d28 1284 if (__set_isoc_interface(hdev, new_alts) < 0)
9bfa35fe
MH		 1285 return;
1286 }
1287
1288 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2eda66f4 1289 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
9bfa35fe
MH		 1290 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1291 else
2eda66f4 1292 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
9bfa35fe
MH		 1293 }
1294 } else {
1295 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1296 usb_kill_anchored_urbs(&data->isoc_anchor);
1297
1298 __set_isoc_interface(hdev, 0);
08b8b6c4 1299 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
8efdd0cd 1300 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
5e23b923
MH		 1301 }
1302}
1303
7bee549e
ON		 1304static void btusb_waker(struct work_struct *work)
1305{
1306 struct btusb_data *data = container_of(work, struct btusb_data, waker);
1307 int err;
1308
1309 err = usb_autopm_get_interface(data->intf);
1310 if (err < 0)
1311 return;
1312
1313 usb_autopm_put_interface(data->intf);
1314}
1315
9f8f962c
MH		 1316static int btusb_setup_bcm92035(struct hci_dev *hdev)
1317{
1318 struct sk_buff *skb;
1319 u8 val = 0x00;
1320
1321 BT_DBG("%s", hdev->name);
1322
1323 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
1324 if (IS_ERR(skb))
1325 BT_ERR("BCM92035 command failed (%ld)", -PTR_ERR(skb));
1326 else
1327 kfree_skb(skb);
1328
1329 return 0;
1330}
1331
81cac64b
MH		 1332static int btusb_setup_csr(struct hci_dev *hdev)
1333{
1334 struct hci_rp_read_local_version *rp;
1335 struct sk_buff *skb;
81cac64b
MH		 1336
1337 BT_DBG("%s", hdev->name);
1338
7cd84d72
MH		 1339 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1340 HCI_INIT_TIMEOUT);
1341 if (IS_ERR(skb)) {
1342 int err = PTR_ERR(skb);
1343 BT_ERR("%s: CSR: Local version failed (%d)", hdev->name, err);
1344 return err;
1345 }
1346
1347 if (skb->len != sizeof(struct hci_rp_read_local_version)) {
1348 BT_ERR("%s: CSR: Local version length mismatch", hdev->name);
1349 kfree_skb(skb);
1350 return -EIO;
1351 }
81cac64b 1352
89e7533d 1353 rp = (struct hci_rp_read_local_version *)skb->data;
81cac64b 1354
6cafcd95
JH		 1355 /* Detect controllers which aren't real CSR ones. */
1356 if (le16_to_cpu(rp->manufacturer) != 10 ||
1357 le16_to_cpu(rp->lmp_subver) == 0x0c5c) {
9641d343
MH		 1358 /* Clear the reset quirk since this is not an actual
1359 * early Bluetooth 1.1 device from CSR.
1360 */
1361 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
81cac64b 1362
9641d343
MH		 1363 /* These fake CSR controllers have all a broken
1364 * stored link key handling and so just disable it.
1365 */
1366 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
1367 }
81cac64b
MH		 1368
1369 kfree_skb(skb);
1370
9641d343 1371 return 0;
81cac64b
MH		 1372}
1373
dffd30ee 1374static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev,
89e7533d 1375 struct intel_version *ver)
dffd30ee
THJA		 1376{
1377 const struct firmware *fw;
1378 char fwname[64];
1379 int ret;
1380
1381 snprintf(fwname, sizeof(fwname),
1382 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq",
1383 ver->hw_platform, ver->hw_variant, ver->hw_revision,
1384 ver->fw_variant, ver->fw_revision, ver->fw_build_num,
1385 ver->fw_build_ww, ver->fw_build_yy);
1386
1387 ret = request_firmware(&fw, fwname, &hdev->dev);
1388 if (ret < 0) {
1389 if (ret == -EINVAL) {
1390 BT_ERR("%s Intel firmware file request failed (%d)",
1391 hdev->name, ret);
1392 return NULL;
1393 }
1394
1395 BT_ERR("%s failed to open Intel firmware file: %s(%d)",
1396 hdev->name, fwname, ret);
1397
1398 /* If the correct firmware patch file is not found, use the
1399 * default firmware patch file instead
1400 */
1401 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq",
1402 ver->hw_platform, ver->hw_variant);
1403 if (request_firmware(&fw, fwname, &hdev->dev) < 0) {
1404 BT_ERR("%s failed to open default Intel fw file: %s",
1405 hdev->name, fwname);
1406 return NULL;
1407 }
1408 }
1409
1410 BT_INFO("%s: Intel Bluetooth firmware file: %s", hdev->name, fwname);
1411
1412 return fw;
1413}
1414
1415static int btusb_setup_intel_patching(struct hci_dev *hdev,
1416 const struct firmware *fw,
1417 const u8 **fw_ptr, int *disable_patch)
1418{
1419 struct sk_buff *skb;
1420 struct hci_command_hdr *cmd;
1421 const u8 *cmd_param;
1422 struct hci_event_hdr *evt = NULL;
1423 const u8 *evt_param = NULL;
1424 int remain = fw->size - (*fw_ptr - fw->data);
1425
1426 /* The first byte indicates the types of the patch command or event.
1427 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes
1428 * in the current firmware buffer doesn't start with 0x01 or
1429 * the size of remain buffer is smaller than HCI command header,
1430 * the firmware file is corrupted and it should stop the patching
1431 * process.
1432 */
1433 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) {
1434 BT_ERR("%s Intel fw corrupted: invalid cmd read", hdev->name);
1435 return -EINVAL;
1436 }
1437 (*fw_ptr)++;
1438 remain--;
1439
1440 cmd = (struct hci_command_hdr *)(*fw_ptr);
1441 *fw_ptr += sizeof(*cmd);
1442 remain -= sizeof(*cmd);
1443
1444 /* Ensure that the remain firmware data is long enough than the length
1445 * of command parameter. If not, the firmware file is corrupted.
1446 */
1447 if (remain < cmd->plen) {
1448 BT_ERR("%s Intel fw corrupted: invalid cmd len", hdev->name);
1449 return -EFAULT;
1450 }
1451
1452 /* If there is a command that loads a patch in the firmware
1453 * file, then enable the patch upon success, otherwise just
1454 * disable the manufacturer mode, for example patch activation
1455 * is not required when the default firmware patch file is used
1456 * because there are no patch data to load.
1457 */
1458 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e)
1459 *disable_patch = 0;
1460
1461 cmd_param = *fw_ptr;
1462 *fw_ptr += cmd->plen;
1463 remain -= cmd->plen;
1464
1465 /* This reads the expected events when the above command is sent to the
1466 * device. Some vendor commands expects more than one events, for
1467 * example command status event followed by vendor specific event.
1468 * For this case, it only keeps the last expected event. so the command
1469 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of
1470 * last expected event.
1471 */
1472 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) {
1473 (*fw_ptr)++;
1474 remain--;
1475
1476 evt = (struct hci_event_hdr *)(*fw_ptr);
1477 *fw_ptr += sizeof(*evt);
1478 remain -= sizeof(*evt);
1479
1480 if (remain < evt->plen) {
1481 BT_ERR("%s Intel fw corrupted: invalid evt len",
1482 hdev->name);
1483 return -EFAULT;
1484 }
1485
1486 evt_param = *fw_ptr;
1487 *fw_ptr += evt->plen;
1488 remain -= evt->plen;
1489 }
1490
1491 /* Every HCI commands in the firmware file has its correspond event.
1492 * If event is not found or remain is smaller than zero, the firmware
1493 * file is corrupted.
1494 */
1495 if (!evt || !evt_param || remain < 0) {
1496 BT_ERR("%s Intel fw corrupted: invalid evt read", hdev->name);
1497 return -EFAULT;
1498 }
1499
1500 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen,
1501 cmd_param, evt->evt, HCI_INIT_TIMEOUT);
1502 if (IS_ERR(skb)) {
1503 BT_ERR("%s sending Intel patch command (0x%4.4x) failed (%ld)",
1504 hdev->name, cmd->opcode, PTR_ERR(skb));
d9c78e97 1505 return PTR_ERR(skb);
dffd30ee
THJA		 1506 }
1507
1508 /* It ensures that the returned event matches the event data read from
1509 * the firmware file. At fist, it checks the length and then
1510 * the contents of the event.
1511 */
1512 if (skb->len != evt->plen) {
1513 BT_ERR("%s mismatch event length (opcode 0x%4.4x)", hdev->name,
1514 le16_to_cpu(cmd->opcode));
1515 kfree_skb(skb);
1516 return -EFAULT;
1517 }
1518
1519 if (memcmp(skb->data, evt_param, evt->plen)) {
1520 BT_ERR("%s mismatch event parameter (opcode 0x%4.4x)",
1521 hdev->name, le16_to_cpu(cmd->opcode));
1522 kfree_skb(skb);
1523 return -EFAULT;
1524 }
1525 kfree_skb(skb);
1526
1527 return 0;
1528}
1529
1530static int btusb_setup_intel(struct hci_dev *hdev)
1531{
1532 struct sk_buff *skb;
1533 const struct firmware *fw;
1534 const u8 *fw_ptr;
1535 int disable_patch;
1536 struct intel_version *ver;
1537
1538 const u8 mfg_enable[] = { 0x01, 0x00 };
1539 const u8 mfg_disable[] = { 0x00, 0x00 };
1540 const u8 mfg_reset_deactivate[] = { 0x00, 0x01 };
1541 const u8 mfg_reset_activate[] = { 0x00, 0x02 };
1542
1543 BT_DBG("%s", hdev->name);
1544
1545 /* The controller has a bug with the first HCI command sent to it
1546 * returning number of completed commands as zero. This would stall the
1547 * command processing in the Bluetooth core.
1548 *
1549 * As a workaround, send HCI Reset command first which will reset the
1550 * number of completed commands and allow normal command processing
1551 * from now on.
1552 */
1553 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1554 if (IS_ERR(skb)) {
1555 BT_ERR("%s sending initial HCI reset command failed (%ld)",
1556 hdev->name, PTR_ERR(skb));
d9c78e97 1557 return PTR_ERR(skb);
dffd30ee
THJA		 1558 }
1559 kfree_skb(skb);
1560
1561 /* Read Intel specific controller version first to allow selection of
1562 * which firmware file to load.
1563 *
1564 * The returned information are hardware variant and revision plus
1565 * firmware variant, revision and build number.
1566 */
1567 skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT);
1568 if (IS_ERR(skb)) {
1569 BT_ERR("%s reading Intel fw version command failed (%ld)",
1570 hdev->name, PTR_ERR(skb));
d9c78e97 1571 return PTR_ERR(skb);
dffd30ee
THJA		 1572 }
1573
1574 if (skb->len != sizeof(*ver)) {
1575 BT_ERR("%s Intel version event length mismatch", hdev->name);
1576 kfree_skb(skb);
1577 return -EIO;
1578 }
1579
1580 ver = (struct intel_version *)skb->data;
dffd30ee
THJA		 1581
1582 BT_INFO("%s: read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
1583 hdev->name, ver->hw_platform, ver->hw_variant,
1584 ver->hw_revision, ver->fw_variant, ver->fw_revision,
1585 ver->fw_build_num, ver->fw_build_ww, ver->fw_build_yy,
1586 ver->fw_patch_num);
1587
1588 /* fw_patch_num indicates the version of patch the device currently
1589 * have. If there is no patch data in the device, it is always 0x00.
5075edae 1590 * So, if it is other than 0x00, no need to patch the device again.
dffd30ee
THJA		 1591 */
1592 if (ver->fw_patch_num) {
1593 BT_INFO("%s: Intel device is already patched. patch num: %02x",
1594 hdev->name, ver->fw_patch_num);
1595 kfree_skb(skb);
4185a0f5 1596 btintel_check_bdaddr(hdev);
dffd30ee
THJA		 1597 return 0;
1598 }
1599
1600 /* Opens the firmware patch file based on the firmware version read
1601 * from the controller. If it fails to open the matching firmware
1602 * patch file, it tries to open the default firmware patch file.
1603 * If no patch file is found, allow the device to operate without
1604 * a patch.
1605 */
1606 fw = btusb_setup_intel_get_fw(hdev, ver);
1607 if (!fw) {
1608 kfree_skb(skb);
4185a0f5 1609 btintel_check_bdaddr(hdev);
dffd30ee
THJA		 1610 return 0;
1611 }
1612 fw_ptr = fw->data;
1613
ecffc804
MH		 1614 kfree_skb(skb);
1615
dffd30ee
THJA		 1616 /* This Intel specific command enables the manufacturer mode of the
1617 * controller.
1618 *
1619 * Only while this mode is enabled, the driver can download the
1620 * firmware patch data and configuration parameters.
1621 */
1622 skb = __hci_cmd_sync(hdev, 0xfc11, 2, mfg_enable, HCI_INIT_TIMEOUT);
1623 if (IS_ERR(skb)) {
1624 BT_ERR("%s entering Intel manufacturer mode failed (%ld)",
1625 hdev->name, PTR_ERR(skb));
1626 release_firmware(fw);
d9c78e97 1627 return PTR_ERR(skb);
dffd30ee
THJA		 1628 }
1629
dffd30ee
THJA		 1630 kfree_skb(skb);
1631
1632 disable_patch = 1;
1633
1634 /* The firmware data file consists of list of Intel specific HCI
1635 * commands and its expected events. The first byte indicates the
1636 * type of the message, either HCI command or HCI event.
1637 *
1638 * It reads the command and its expected event from the firmware file,
1639 * and send to the controller. Once __hci_cmd_sync_ev() returns,
1640 * the returned event is compared with the event read from the firmware
1641 * file and it will continue until all the messages are downloaded to
1642 * the controller.
1643 *
1644 * Once the firmware patching is completed successfully,
1645 * the manufacturer mode is disabled with reset and activating the
1646 * downloaded patch.
1647 *
1648 * If the firmware patching fails, the manufacturer mode is
1649 * disabled with reset and deactivating the patch.
1650 *
1651 * If the default patch file is used, no reset is done when disabling
1652 * the manufacturer.
1653 */
1654 while (fw->size > fw_ptr - fw->data) {
1655 int ret;
1656
1657 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr,
1658 &disable_patch);
1659 if (ret < 0)
1660 goto exit_mfg_deactivate;
1661 }
1662
1663 release_firmware(fw);
1664
1665 if (disable_patch)
1666 goto exit_mfg_disable;
1667
1668 /* Patching completed successfully and disable the manufacturer mode
1669 * with reset and activate the downloaded firmware patches.
1670 */
1671 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_activate),
1672 mfg_reset_activate, HCI_INIT_TIMEOUT);
1673 if (IS_ERR(skb)) {
1674 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1675 hdev->name, PTR_ERR(skb));
d9c78e97 1676 return PTR_ERR(skb);
dffd30ee
THJA		 1677 }
1678 kfree_skb(skb);
1679
1680 BT_INFO("%s: Intel Bluetooth firmware patch completed and activated",
1681 hdev->name);
1682
4185a0f5 1683 btintel_check_bdaddr(hdev);
dffd30ee
THJA		 1684 return 0;
1685
1686exit_mfg_disable:
1687 /* Disable the manufacturer mode without reset */
1688 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_disable), mfg_disable,
1689 HCI_INIT_TIMEOUT);
1690 if (IS_ERR(skb)) {
1691 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1692 hdev->name, PTR_ERR(skb));
d9c78e97 1693 return PTR_ERR(skb);
dffd30ee
THJA		 1694 }
1695 kfree_skb(skb);
1696
1697 BT_INFO("%s: Intel Bluetooth firmware patch completed", hdev->name);
40cb0984 1698
4185a0f5 1699 btintel_check_bdaddr(hdev);
dffd30ee
THJA		 1700 return 0;
1701
1702exit_mfg_deactivate:
1703 release_firmware(fw);
1704
1705 /* Patching failed. Disable the manufacturer mode with reset and
1706 * deactivate the downloaded firmware patches.
1707 */
1708 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_deactivate),
1709 mfg_reset_deactivate, HCI_INIT_TIMEOUT);
1710 if (IS_ERR(skb)) {
1711 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1712 hdev->name, PTR_ERR(skb));
d9c78e97 1713 return PTR_ERR(skb);
dffd30ee
THJA		 1714 }
1715 kfree_skb(skb);
1716
1717 BT_INFO("%s: Intel Bluetooth firmware patch completed and deactivated",
1718 hdev->name);
1719
4185a0f5 1720 btintel_check_bdaddr(hdev);
dffd30ee
THJA		 1721 return 0;
1722}
1723
cda0dd78
MH		 1724static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
1725{
1726 struct sk_buff *skb;
1727 struct hci_event_hdr *hdr;
1728 struct hci_ev_cmd_complete *evt;
1729
1730 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_ATOMIC);
1731 if (!skb)
1732 return -ENOMEM;
1733
1734 hdr = (struct hci_event_hdr *)skb_put(skb, sizeof(*hdr));
1735 hdr->evt = HCI_EV_CMD_COMPLETE;
1736 hdr->plen = sizeof(*evt) + 1;
1737
1738 evt = (struct hci_ev_cmd_complete *)skb_put(skb, sizeof(*evt));
1739 evt->ncmd = 0x01;
1740 evt->opcode = cpu_to_le16(opcode);
1741
1742 *skb_put(skb, 1) = 0x00;
1743
1744 bt_cb(skb)->pkt_type = HCI_EVENT_PKT;
1745
1746 return hci_recv_frame(hdev, skb);
1747}
1748
1749static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
1750 int count)
1751{
1752 /* When the device is in bootloader mode, then it can send
1753 * events via the bulk endpoint. These events are treated the
1754 * same way as the ones received from the interrupt endpoint.
1755 */
1756 if (test_bit(BTUSB_BOOTLOADER, &data->flags))
1757 return btusb_recv_intr(data, buffer, count);
1758
1759 return btusb_recv_bulk(data, buffer, count);
1760}
1761
ccd6da2a
MH		 1762static void btusb_intel_bootup(struct btusb_data *data, const void *ptr,
1763 unsigned int len)
1764{
1765 const struct intel_bootup *evt = ptr;
1766
1767 if (len != sizeof(*evt))
1768 return;
1769
1770 if (test_and_clear_bit(BTUSB_BOOTING, &data->flags)) {
1771 smp_mb__after_atomic();
1772 wake_up_bit(&data->flags, BTUSB_BOOTING);
1773 }
1774}
1775
1776static void btusb_intel_secure_send_result(struct btusb_data *data,
1777 const void *ptr, unsigned int len)
1778{
1779 const struct intel_secure_send_result *evt = ptr;
1780
1781 if (len != sizeof(*evt))
1782 return;
1783
1784 if (evt->result)
1785 set_bit(BTUSB_FIRMWARE_FAILED, &data->flags);
1786
1787 if (test_and_clear_bit(BTUSB_DOWNLOADING, &data->flags) &&
1788 test_bit(BTUSB_FIRMWARE_LOADED, &data->flags)) {
1789 smp_mb__after_atomic();
1790 wake_up_bit(&data->flags, BTUSB_DOWNLOADING);
1791 }
1792}
1793
cda0dd78
MH		 1794static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb)
1795{
1796 struct btusb_data *data = hci_get_drvdata(hdev);
1797
1798 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
1799 struct hci_event_hdr *hdr = (void *)skb->data;
1800
ccd6da2a
MH		 1801 if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff &&
1802 hdr->plen > 0) {
1803 const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1;
1804 unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1;
1805
1806 switch (skb->data[2]) {
1807 case 0x02:
1808 /* When switching to the operational firmware
1809 * the device sends a vendor specific event
1810 * indicating that the bootup completed.
1811 */
1812 btusb_intel_bootup(data, ptr, len);
1813 break;
1814 case 0x06:
1815 /* When the firmware loading completes the
1816 * device sends out a vendor specific event
1817 * indicating the result of the firmware
1818 * loading.
1819 */
1820 btusb_intel_secure_send_result(data, ptr, len);
1821 break;
fad70972 1822 }
cda0dd78
MH		 1823 }
1824 }
1825
1826 return hci_recv_frame(hdev, skb);
1827}
1828
1829static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
1830{
1831 struct btusb_data *data = hci_get_drvdata(hdev);
1832 struct urb *urb;
1833
1834 BT_DBG("%s", hdev->name);
1835
cda0dd78
MH		 1836 switch (bt_cb(skb)->pkt_type) {
1837 case HCI_COMMAND_PKT:
1838 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
1839 struct hci_command_hdr *cmd = (void *)skb->data;
1840 __u16 opcode = le16_to_cpu(cmd->opcode);
1841
1842 /* When in bootloader mode and the command 0xfc09
1843 * is received, it needs to be send down the
1844 * bulk endpoint. So allocate a bulk URB instead.
1845 */
1846 if (opcode == 0xfc09)
1847 urb = alloc_bulk_urb(hdev, skb);
1848 else
1849 urb = alloc_ctrl_urb(hdev, skb);
1850
1851 /* When the 0xfc01 command is issued to boot into
1852 * the operational firmware, it will actually not
1853 * send a command complete event. To keep the flow
1854 * control working inject that event here.
1855 */
1856 if (opcode == 0xfc01)
1857 inject_cmd_complete(hdev, opcode);
1858 } else {
1859 urb = alloc_ctrl_urb(hdev, skb);
1860 }
1861 if (IS_ERR(urb))
1862 return PTR_ERR(urb);
1863
1864 hdev->stat.cmd_tx++;
1865 return submit_or_queue_tx_urb(hdev, urb);
1866
1867 case HCI_ACLDATA_PKT:
1868 urb = alloc_bulk_urb(hdev, skb);
1869 if (IS_ERR(urb))
1870 return PTR_ERR(urb);
1871
1872 hdev->stat.acl_tx++;
1873 return submit_or_queue_tx_urb(hdev, urb);
1874
1875 case HCI_SCODATA_PKT:
1876 if (hci_conn_num(hdev, SCO_LINK) < 1)
1877 return -ENODEV;
1878
1879 urb = alloc_isoc_urb(hdev, skb);
1880 if (IS_ERR(urb))
1881 return PTR_ERR(urb);
1882
1883 hdev->stat.sco_tx++;
1884 return submit_tx_urb(hdev, urb);
1885 }
1886
1887 return -EILSEQ;
1888}
1889
cda0dd78
MH		 1890static int btusb_setup_intel_new(struct hci_dev *hdev)
1891{
1892 static const u8 reset_param[] = { 0x00, 0x01, 0x00, 0x01,
1893 0x00, 0x08, 0x04, 0x00 };
1894 struct btusb_data *data = hci_get_drvdata(hdev);
1895 struct sk_buff *skb;
1896 struct intel_version *ver;
1897 struct intel_boot_params *params;
1898 const struct firmware *fw;
1899 const u8 *fw_ptr;
e66890a9 1900 u32 frag_len;
cda0dd78
MH		 1901 char fwname[64];
1902 ktime_t calltime, delta, rettime;
1903 unsigned long long duration;
1904 int err;
1905
1906 BT_DBG("%s", hdev->name);
1907
1908 calltime = ktime_get();
1909
1910 /* Read the Intel version information to determine if the device
1911 * is in bootloader mode or if it already has operational firmware
1912 * loaded.
1913 */
1914 skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT);
1915 if (IS_ERR(skb)) {
1916 BT_ERR("%s: Reading Intel version information failed (%ld)",
1917 hdev->name, PTR_ERR(skb));
1918 return PTR_ERR(skb);
1919 }
1920
1921 if (skb->len != sizeof(*ver)) {
1922 BT_ERR("%s: Intel version event size mismatch", hdev->name);
1923 kfree_skb(skb);
1924 return -EILSEQ;
1925 }
1926
1927 ver = (struct intel_version *)skb->data;
cda0dd78
MH		 1928
1929 /* The hardware platform number has a fixed value of 0x37 and
1930 * for now only accept this single value.
1931 */
1932 if (ver->hw_platform != 0x37) {
1933 BT_ERR("%s: Unsupported Intel hardware platform (%u)",
1934 hdev->name, ver->hw_platform);
1935 kfree_skb(skb);
1936 return -EINVAL;
1937 }
1938
1939 /* At the moment only the hardware variant iBT 3.0 (LnP/SfP) is
1940 * supported by this firmware loading method. This check has been
1941 * put in place to ensure correct forward compatibility options
1942 * when newer hardware variants come along.
1943 */
1944 if (ver->hw_variant != 0x0b) {
1945 BT_ERR("%s: Unsupported Intel hardware variant (%u)",
1946 hdev->name, ver->hw_variant);
1947 kfree_skb(skb);
1948 return -EINVAL;
1949 }
1950
7feb99e1 1951 btintel_version_info(hdev, ver);
cda0dd78
MH		 1952
1953 /* The firmware variant determines if the device is in bootloader
1954 * mode or is running operational firmware. The value 0x06 identifies
1955 * the bootloader and the value 0x23 identifies the operational
1956 * firmware.
1957 *
1958 * When the operational firmware is already present, then only
1959 * the check for valid Bluetooth device address is needed. This
1960 * determines if the device will be added as configured or
1961 * unconfigured controller.
1962 *
1963 * It is not possible to use the Secure Boot Parameters in this
1964 * case since that command is only available in bootloader mode.
1965 */
1966 if (ver->fw_variant == 0x23) {
1967 kfree_skb(skb);
1968 clear_bit(BTUSB_BOOTLOADER, &data->flags);
4185a0f5 1969 btintel_check_bdaddr(hdev);
cda0dd78
MH		 1970 return 0;
1971 }
1972
1973 /* If the device is not in bootloader mode, then the only possible
1974 * choice is to return an error and abort the device initialization.
1975 */
1976 if (ver->fw_variant != 0x06) {
1977 BT_ERR("%s: Unsupported Intel firmware variant (%u)",
1978 hdev->name, ver->fw_variant);
1979 kfree_skb(skb);
1980 return -ENODEV;
1981 }
1982
1983 kfree_skb(skb);
1984
1985 /* Read the secure boot parameters to identify the operating
1986 * details of the bootloader.
1987 */
1988 skb = __hci_cmd_sync(hdev, 0xfc0d, 0, NULL, HCI_INIT_TIMEOUT);
1989 if (IS_ERR(skb)) {
1990 BT_ERR("%s: Reading Intel boot parameters failed (%ld)",
1991 hdev->name, PTR_ERR(skb));
1992 return PTR_ERR(skb);
1993 }
1994
1995 if (skb->len != sizeof(*params)) {
1996 BT_ERR("%s: Intel boot parameters size mismatch", hdev->name);
1997 kfree_skb(skb);
1998 return -EILSEQ;
1999 }
2000
2001 params = (struct intel_boot_params *)skb->data;
cda0dd78
MH		 2002
2003 BT_INFO("%s: Device revision is %u", hdev->name,
2004 le16_to_cpu(params->dev_revid));
2005
2006 BT_INFO("%s: Secure boot is %s", hdev->name,
2007 params->secure_boot ? "enabled" : "disabled");
2008
2009 BT_INFO("%s: Minimum firmware build %u week %u %u", hdev->name,
2010 params->min_fw_build_nn, params->min_fw_build_cw,
2011 2000 + params->min_fw_build_yy);
2012
2013 /* It is required that every single firmware fragment is acknowledged
2014 * with a command complete event. If the boot parameters indicate
2015 * that this bootloader does not send them, then abort the setup.
2016 */
2017 if (params->limited_cce != 0x00) {
2018 BT_ERR("%s: Unsupported Intel firmware loading method (%u)",
2019 hdev->name, params->limited_cce);
2020 kfree_skb(skb);
2021 return -EINVAL;
2022 }
2023
2024 /* If the OTP has no valid Bluetooth device address, then there will
2025 * also be no valid address for the operational firmware.
2026 */
2027 if (!bacmp(&params->otp_bdaddr, BDADDR_ANY)) {
2028 BT_INFO("%s: No device address configured", hdev->name);
2029 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
2030 }
2031
2032 /* With this Intel bootloader only the hardware variant and device
2033 * revision information are used to select the right firmware.
2034 *
2035 * Currently this bootloader support is limited to hardware variant
2036 * iBT 3.0 (LnP/SfP) which is identified by the value 11 (0x0b).
2037 */
2038 snprintf(fwname, sizeof(fwname), "intel/ibt-11-%u.sfi",
2039 le16_to_cpu(params->dev_revid));
2040
2041 err = request_firmware(&fw, fwname, &hdev->dev);
2042 if (err < 0) {
2043 BT_ERR("%s: Failed to load Intel firmware file (%d)",
2044 hdev->name, err);
2045 kfree_skb(skb);
2046 return err;
2047 }
2048
2049 BT_INFO("%s: Found device firmware: %s", hdev->name, fwname);
2050
52cc9168
THJA		 2051 /* Save the DDC file name for later use to apply once the firmware
2052 * downloading is done.
2053 */
2054 snprintf(fwname, sizeof(fwname), "intel/ibt-11-%u.ddc",
2055 le16_to_cpu(params->dev_revid));
2056
cda0dd78
MH		 2057 kfree_skb(skb);
2058
2059 if (fw->size < 644) {
2060 BT_ERR("%s: Invalid size of firmware file (%zu)",
2061 hdev->name, fw->size);
2062 err = -EBADF;
2063 goto done;
2064 }
2065
2066 set_bit(BTUSB_DOWNLOADING, &data->flags);
2067
2068 /* Start the firmware download transaction with the Init fragment
2069 * represented by the 128 bytes of CSS header.
2070 */
09df123d 2071 err = btintel_secure_send(hdev, 0x00, 128, fw->data);
cda0dd78
MH		 2072 if (err < 0) {
2073 BT_ERR("%s: Failed to send firmware header (%d)",
2074 hdev->name, err);
2075 goto done;
2076 }
2077
2078 /* Send the 256 bytes of public key information from the firmware
2079 * as the PKey fragment.
2080 */
09df123d 2081 err = btintel_secure_send(hdev, 0x03, 256, fw->data + 128);
cda0dd78
MH		 2082 if (err < 0) {
2083 BT_ERR("%s: Failed to send firmware public key (%d)",
2084 hdev->name, err);
2085 goto done;
2086 }
2087
2088 /* Send the 256 bytes of signature information from the firmware
2089 * as the Sign fragment.
2090 */
09df123d 2091 err = btintel_secure_send(hdev, 0x02, 256, fw->data + 388);
cda0dd78
MH		 2092 if (err < 0) {
2093 BT_ERR("%s: Failed to send firmware signature (%d)",
2094 hdev->name, err);
2095 goto done;
2096 }
2097
2098 fw_ptr = fw->data + 644;
e66890a9 2099 frag_len = 0;
cda0dd78
MH		 2100
2101 while (fw_ptr - fw->data < fw->size) {
e66890a9 2102 struct hci_command_hdr *cmd = (void *)(fw_ptr + frag_len);
cda0dd78 2103
e66890a9 2104 frag_len += sizeof(*cmd) + cmd->plen;
cda0dd78 2105
5075edae 2106 /* The parameter length of the secure send command requires
e66890a9
MH		 2107 * a 4 byte alignment. It happens so that the firmware file
2108 * contains proper Intel_NOP commands to align the fragments
2109 * as needed.
2110 *
2111 * Send set of commands with 4 byte alignment from the
2112 * firmware data buffer as a single Data fragement.
cda0dd78 2113 */
e66890a9 2114 if (!(frag_len % 4)) {
09df123d 2115 err = btintel_secure_send(hdev, 0x01, frag_len, fw_ptr);
e66890a9
MH		 2116 if (err < 0) {
2117 BT_ERR("%s: Failed to send firmware data (%d)",
2118 hdev->name, err);
2119 goto done;
2120 }
cda0dd78 2121
e66890a9
MH		 2122 fw_ptr += frag_len;
2123 frag_len = 0;
2124 }
cda0dd78
MH		 2125 }
2126
ce6bb929
MH		 2127 set_bit(BTUSB_FIRMWARE_LOADED, &data->flags);
2128
a087a98e
JH		 2129 BT_INFO("%s: Waiting for firmware download to complete", hdev->name);
2130
cda0dd78
MH		 2131 /* Before switching the device into operational mode and with that
2132 * booting the loaded firmware, wait for the bootloader notification
2133 * that all fragments have been successfully received.
2134 *
a087a98e
JH		 2135 * When the event processing receives the notification, then the
2136 * BTUSB_DOWNLOADING flag will be cleared.
2137 *
2138 * The firmware loading should not take longer than 5 seconds
2139 * and thus just timeout if that happens and fail the setup
2140 * of this device.
cda0dd78 2141 */
129a7693
JH		 2142 err = wait_on_bit_timeout(&data->flags, BTUSB_DOWNLOADING,
2143 TASK_INTERRUPTIBLE,
2144 msecs_to_jiffies(5000));
a087a98e
JH		 2145 if (err == 1) {
2146 BT_ERR("%s: Firmware loading interrupted", hdev->name);
2147 err = -EINTR;
2148 goto done;
2149 }
cda0dd78 2150
a087a98e
JH		 2151 if (err) {
2152 BT_ERR("%s: Firmware loading timeout", hdev->name);
2153 err = -ETIMEDOUT;
2154 goto done;
cda0dd78
MH		 2155 }
2156
2157 if (test_bit(BTUSB_FIRMWARE_FAILED, &data->flags)) {
2158 BT_ERR("%s: Firmware loading failed", hdev->name);
2159 err = -ENOEXEC;
2160 goto done;
2161 }
2162
2163 rettime = ktime_get();
2164 delta = ktime_sub(rettime, calltime);
2165 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2166
2167 BT_INFO("%s: Firmware loaded in %llu usecs", hdev->name, duration);
2168
2169done:
2170 release_firmware(fw);
2171
2172 if (err < 0)
2173 return err;
2174
2175 calltime = ktime_get();
2176
2177 set_bit(BTUSB_BOOTING, &data->flags);
2178
2179 skb = __hci_cmd_sync(hdev, 0xfc01, sizeof(reset_param), reset_param,
2180 HCI_INIT_TIMEOUT);
2181 if (IS_ERR(skb))
2182 return PTR_ERR(skb);
2183
2184 kfree_skb(skb);
2185
2186 /* The bootloader will not indicate when the device is ready. This
2187 * is done by the operational firmware sending bootup notification.
fad70972
JH		 2188 *
2189 * Booting into operational firmware should not take longer than
2190 * 1 second. However if that happens, then just fail the setup
2191 * since something went wrong.
cda0dd78 2192 */
fad70972 2193 BT_INFO("%s: Waiting for device to boot", hdev->name);
cda0dd78 2194
129a7693
JH		 2195 err = wait_on_bit_timeout(&data->flags, BTUSB_BOOTING,
2196 TASK_INTERRUPTIBLE,
2197 msecs_to_jiffies(1000));
cda0dd78 2198
fad70972
JH		 2199 if (err == 1) {
2200 BT_ERR("%s: Device boot interrupted", hdev->name);
2201 return -EINTR;
2202 }
cda0dd78 2203
fad70972
JH		 2204 if (err) {
2205 BT_ERR("%s: Device boot timeout", hdev->name);
2206 return -ETIMEDOUT;
cda0dd78
MH		 2207 }
2208
2209 rettime = ktime_get();
2210 delta = ktime_sub(rettime, calltime);
2211 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2212
2213 BT_INFO("%s: Device booted in %llu usecs", hdev->name, duration);
2214
2215 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2216
52cc9168
THJA		 2217 /* Once the device is running in operational mode, it needs to apply
2218 * the device configuration (DDC) parameters.
2219 *
2220 * The device can work without DDC parameters, so even if it fails
2221 * to load the file, no need to fail the setup.
2222 */
e924d3d6 2223 btintel_load_ddc_config(hdev, fwname);
52cc9168 2224
cda0dd78
MH		 2225 return 0;
2226}
2227
bfbd45e9
THJA		 2228static int btusb_shutdown_intel(struct hci_dev *hdev)
2229{
2230 struct sk_buff *skb;
2231 long ret;
2232
2233 /* Some platforms have an issue with BT LED when the interface is
2234 * down or BT radio is turned off, which takes 5 seconds to BT LED
2235 * goes off. This command turns off the BT LED immediately.
2236 */
2237 skb = __hci_cmd_sync(hdev, 0xfc3f, 0, NULL, HCI_INIT_TIMEOUT);
2238 if (IS_ERR(skb)) {
2239 ret = PTR_ERR(skb);
2240 BT_ERR("%s: turning off Intel device LED failed (%ld)",
2241 hdev->name, ret);
2242 return ret;
2243 }
2244 kfree_skb(skb);
2245
2246 return 0;
2247}
2248
ae8df494
AK		 2249static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
2250 const bdaddr_t *bdaddr)
2251{
2252 struct sk_buff *skb;
2253 u8 buf[8];
2254 long ret;
2255
2256 buf[0] = 0xfe;
2257 buf[1] = sizeof(bdaddr_t);
2258 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
2259
2260 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2261 if (IS_ERR(skb)) {
2262 ret = PTR_ERR(skb);
2263 BT_ERR("%s: changing Marvell device address failed (%ld)",
2264 hdev->name, ret);
2265 return ret;
2266 }
2267 kfree_skb(skb);
2268
2269 return 0;
2270}
2271
5859223e
TK		 2272static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
2273 const bdaddr_t *bdaddr)
2274{
2275 struct sk_buff *skb;
2276 u8 buf[10];
2277 long ret;
2278
2279 buf[0] = 0x01;
2280 buf[1] = 0x01;
2281 buf[2] = 0x00;
2282 buf[3] = sizeof(bdaddr_t);
2283 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
2284
2285 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2286 if (IS_ERR(skb)) {
2287 ret = PTR_ERR(skb);
2288 BT_ERR("%s: Change address command failed (%ld)",
2289 hdev->name, ret);
2290 return ret;
2291 }
2292 kfree_skb(skb);
2293
2294 return 0;
2295}
2296
3267c884
KBYT		 2297#define QCA_DFU_PACKET_LEN 4096
2298
2299#define QCA_GET_TARGET_VERSION 0x09
2300#define QCA_CHECK_STATUS 0x05
2301#define QCA_DFU_DOWNLOAD 0x01
2302
2303#define QCA_SYSCFG_UPDATED 0x40
2304#define QCA_PATCH_UPDATED 0x80
2305#define QCA_DFU_TIMEOUT 3000
2306
2307struct qca_version {
2308 __le32 rom_version;
2309 __le32 patch_version;
2310 __le32 ram_version;
2311 __le32 ref_clock;
2312 __u8 reserved[4];
2313} __packed;
2314
2315struct qca_rampatch_version {
2316 __le16 rom_version;
2317 __le16 patch_version;
2318} __packed;
2319
2320struct qca_device_info {
bf906b3d
KBYT		 2321 u32 rom_version;
2322 u8 rampatch_hdr; /* length of header in rampatch */
2323 u8 nvm_hdr; /* length of header in NVM */
2324 u8 ver_offset; /* offset of version structure in rampatch */
3267c884
KBYT		 2325};
2326
2327static const struct qca_device_info qca_devices_table[] = {
2328 { 0x00000100, 20, 4, 10 }, /* Rome 1.0 */
2329 { 0x00000101, 20, 4, 10 }, /* Rome 1.1 */
7f6e6363 2330 { 0x00000200, 28, 4, 18 }, /* Rome 2.0 */
3267c884
KBYT		 2331 { 0x00000201, 28, 4, 18 }, /* Rome 2.1 */
2332 { 0x00000300, 28, 4, 18 }, /* Rome 3.0 */
2333 { 0x00000302, 28, 4, 18 }, /* Rome 3.2 */
2334};
2335
2336static int btusb_qca_send_vendor_req(struct hci_dev *hdev, u8 request,
2337 void *data, u16 size)
2338{
2339 struct btusb_data *btdata = hci_get_drvdata(hdev);
2340 struct usb_device *udev = btdata->udev;
2341 int pipe, err;
2342 u8 *buf;
2343
2344 buf = kmalloc(size, GFP_KERNEL);
2345 if (!buf)
2346 return -ENOMEM;
2347
2348 /* Found some of USB hosts have IOT issues with ours so that we should
2349 * not wait until HCI layer is ready.
2350 */
2351 pipe = usb_rcvctrlpipe(udev, 0);
2352 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
2353 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
2354 if (err < 0) {
2355 BT_ERR("%s: Failed to access otp area (%d)", hdev->name, err);
2356 goto done;
2357 }
2358
2359 memcpy(data, buf, size);
2360
2361done:
2362 kfree(buf);
2363
2364 return err;
2365}
2366
2367static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
2368 const struct firmware *firmware,
2369 size_t hdr_size)
2370{
2371 struct btusb_data *btdata = hci_get_drvdata(hdev);
2372 struct usb_device *udev = btdata->udev;
2373 size_t count, size, sent = 0;
2374 int pipe, len, err;
2375 u8 *buf;
2376
2377 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
2378 if (!buf)
2379 return -ENOMEM;
2380
2381 count = firmware->size;
2382
2383 size = min_t(size_t, count, hdr_size);
2384 memcpy(buf, firmware->data, size);
2385
2386 /* USB patches should go down to controller through USB path
2387 * because binary format fits to go down through USB channel.
2388 * USB control path is for patching headers and USB bulk is for
2389 * patch body.
2390 */
2391 pipe = usb_sndctrlpipe(udev, 0);
2392 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
2393 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
2394 if (err < 0) {
2395 BT_ERR("%s: Failed to send headers (%d)", hdev->name, err);
2396 goto done;
2397 }
2398
2399 sent += size;
2400 count -= size;
2401
2402 while (count) {
2403 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
2404
2405 memcpy(buf, firmware->data + sent, size);
2406
2407 pipe = usb_sndbulkpipe(udev, 0x02);
2408 err = usb_bulk_msg(udev, pipe, buf, size, &len,
2409 QCA_DFU_TIMEOUT);
2410 if (err < 0) {
2411 BT_ERR("%s: Failed to send body at %zd of %zd (%d)",
2412 hdev->name, sent, firmware->size, err);
2413 break;
2414 }
2415
2416 if (size != len) {
2417 BT_ERR("%s: Failed to get bulk buffer", hdev->name);
2418 err = -EILSEQ;
2419 break;
2420 }
2421
2422 sent += size;
2423 count -= size;
2424 }
2425
2426done:
2427 kfree(buf);
2428 return err;
2429}
2430
2431static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
2432 struct qca_version *ver,
2433 const struct qca_device_info *info)
2434{
2435 struct qca_rampatch_version *rver;
2436 const struct firmware *fw;
bf906b3d
KBYT		 2437 u32 ver_rom, ver_patch;
2438 u16 rver_rom, rver_patch;
3267c884
KBYT		 2439 char fwname[64];
2440 int err;
2441
bf906b3d
KBYT		 2442 ver_rom = le32_to_cpu(ver->rom_version);
2443 ver_patch = le32_to_cpu(ver->patch_version);
2444
2445 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom);
3267c884
KBYT		 2446
2447 err = request_firmware(&fw, fwname, &hdev->dev);
2448 if (err) {
2449 BT_ERR("%s: failed to request rampatch file: %s (%d)",
2450 hdev->name, fwname, err);
2451 return err;
2452 }
2453
2454 BT_INFO("%s: using rampatch file: %s", hdev->name, fwname);
bf906b3d 2455
3267c884 2456 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
bf906b3d
KBYT		 2457 rver_rom = le16_to_cpu(rver->rom_version);
2458 rver_patch = le16_to_cpu(rver->patch_version);
2459
3267c884 2460 BT_INFO("%s: QCA: patch rome 0x%x build 0x%x, firmware rome 0x%x "
bf906b3d
KBYT		 2461 "build 0x%x", hdev->name, rver_rom, rver_patch, ver_rom,
2462 ver_patch);
3267c884 2463
bf906b3d 2464 if (rver_rom != ver_rom || rver_patch <= ver_patch) {
3267c884
KBYT		 2465 BT_ERR("%s: rampatch file version did not match with firmware",
2466 hdev->name);
2467 err = -EINVAL;
2468 goto done;
2469 }
2470
2471 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
2472
2473done:
2474 release_firmware(fw);
2475
2476 return err;
2477}
2478
2479static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
2480 struct qca_version *ver,
2481 const struct qca_device_info *info)
2482{
2483 const struct firmware *fw;
2484 char fwname[64];
2485 int err;
2486
2487 snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin",
2488 le32_to_cpu(ver->rom_version));
2489
2490 err = request_firmware(&fw, fwname, &hdev->dev);
2491 if (err) {
2492 BT_ERR("%s: failed to request NVM file: %s (%d)",
2493 hdev->name, fwname, err);
2494 return err;
2495 }
2496
2497 BT_INFO("%s: using NVM file: %s", hdev->name, fwname);
2498
2499 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
2500
2501 release_firmware(fw);
2502
2503 return err;
2504}
2505
2506static int btusb_setup_qca(struct hci_dev *hdev)
2507{
2508 const struct qca_device_info *info = NULL;
2509 struct qca_version ver;
bf906b3d 2510 u32 ver_rom;
3267c884
KBYT		 2511 u8 status;
2512 int i, err;
2513
2514 err = btusb_qca_send_vendor_req(hdev, QCA_GET_TARGET_VERSION, &ver,
eb50042f 2515 sizeof(ver));
3267c884
KBYT		 2516 if (err < 0)
2517 return err;
2518
bf906b3d 2519 ver_rom = le32_to_cpu(ver.rom_version);
3267c884 2520 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
bf906b3d 2521 if (ver_rom == qca_devices_table[i].rom_version)
3267c884
KBYT		 2522 info = &qca_devices_table[i];
2523 }
2524 if (!info) {
2525 BT_ERR("%s: don't support firmware rome 0x%x", hdev->name,
bf906b3d 2526 ver_rom);
3267c884
KBYT		 2527 return -ENODEV;
2528 }
2529
2530 err = btusb_qca_send_vendor_req(hdev, QCA_CHECK_STATUS, &status,
2531 sizeof(status));
2532 if (err < 0)
2533 return err;
2534
2535 if (!(status & QCA_PATCH_UPDATED)) {
2536 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
2537 if (err < 0)
2538 return err;
2539 }
2540
2541 if (!(status & QCA_SYSCFG_UPDATED)) {
2542 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
2543 if (err < 0)
2544 return err;
2545 }
2546
2547 return 0;
2548}
2549
5e23b923 2550static int btusb_probe(struct usb_interface *intf,
89e7533d 2551 const struct usb_device_id *id)
5e23b923
MH		 2552{
2553 struct usb_endpoint_descriptor *ep_desc;
2554 struct btusb_data *data;
2555 struct hci_dev *hdev;
2556 int i, err;
2557
2558 BT_DBG("intf %p id %p", intf, id);
2559
cfeb4145 2560 /* interface numbers are hardcoded in the spec */
5e23b923
MH		 2561 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
2562 return -ENODEV;
2563
2564 if (!id->driver_info) {
2565 const struct usb_device_id *match;
89e7533d 2566
5e23b923
MH		 2567 match = usb_match_id(intf, blacklist_table);
2568 if (match)
2569 id = match;
2570 }
2571
cfeb4145
MH		 2572 if (id->driver_info == BTUSB_IGNORE)
2573 return -ENODEV;
2574
2d25f8b4
SL		 2575 if (id->driver_info & BTUSB_ATH3012) {
2576 struct usb_device *udev = interface_to_usbdev(intf);
2577
2578 /* Old firmware would otherwise let ath3k driver load
2579 * patch and sysconfig files */
2580 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
2581 return -ENODEV;
2582 }
2583
98921dbd 2584 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
5e23b923
MH		 2585 if (!data)
2586 return -ENOMEM;
2587
2588 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2589 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2590
2591 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
2592 data->intr_ep = ep_desc;
2593 continue;
2594 }
2595
2596 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
2597 data->bulk_tx_ep = ep_desc;
2598 continue;
2599 }
2600
2601 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
2602 data->bulk_rx_ep = ep_desc;
2603 continue;
2604 }
2605 }
2606
98921dbd 2607 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
5e23b923 2608 return -ENODEV;
5e23b923 2609
893ba544
MH		 2610 if (id->driver_info & BTUSB_AMP) {
2611 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
2612 data->cmdreq = 0x2b;
2613 } else {
2614 data->cmdreq_type = USB_TYPE_CLASS;
2615 data->cmdreq = 0x00;
2616 }
7a9d4020 2617
5e23b923 2618 data->udev = interface_to_usbdev(intf);
5fbcd260 2619 data->intf = intf;
5e23b923 2620
5e23b923 2621 INIT_WORK(&data->work, btusb_work);
7bee549e 2622 INIT_WORK(&data->waker, btusb_waker);
803b5836
MH		 2623 init_usb_anchor(&data->deferred);
2624 init_usb_anchor(&data->tx_anchor);
7bee549e 2625 spin_lock_init(&data->txlock);
5e23b923 2626
5e23b923
MH		 2627 init_usb_anchor(&data->intr_anchor);
2628 init_usb_anchor(&data->bulk_anchor);
9bfa35fe 2629 init_usb_anchor(&data->isoc_anchor);
803b5836 2630 spin_lock_init(&data->rxlock);
5e23b923 2631
cda0dd78
MH		 2632 if (id->driver_info & BTUSB_INTEL_NEW) {
2633 data->recv_event = btusb_recv_event_intel;
2634 data->recv_bulk = btusb_recv_bulk_intel;
2635 set_bit(BTUSB_BOOTLOADER, &data->flags);
2636 } else {
2637 data->recv_event = hci_recv_frame;
2638 data->recv_bulk = btusb_recv_bulk;
2639 }
2cbd3f5c 2640
5e23b923 2641 hdev = hci_alloc_dev();
98921dbd 2642 if (!hdev)
5e23b923 2643 return -ENOMEM;
5e23b923 2644
c13854ce 2645 hdev->bus = HCI_USB;
155961e8 2646 hci_set_drvdata(hdev, data);
5e23b923 2647
893ba544
MH		 2648 if (id->driver_info & BTUSB_AMP)
2649 hdev->dev_type = HCI_AMP;
2650 else
2651 hdev->dev_type = HCI_BREDR;
2652
5e23b923
MH		 2653 data->hdev = hdev;
2654
2655 SET_HCIDEV_DEV(hdev, &intf->dev);
2656
9f8f962c
MH		 2657 hdev->open = btusb_open;
2658 hdev->close = btusb_close;
2659 hdev->flush = btusb_flush;
2660 hdev->send = btusb_send_frame;
2661 hdev->notify = btusb_notify;
2662
2663 if (id->driver_info & BTUSB_BCM92035)
2664 hdev->setup = btusb_setup_bcm92035;
5e23b923 2665
c2bfb100 2666#ifdef CONFIG_BT_HCIBTUSB_BCM
abbaf50e 2667 if (id->driver_info & BTUSB_BCM_PATCHRAM) {
c2bfb100 2668 hdev->setup = btbcm_setup_patchram;
1df1f591 2669 hdev->set_bdaddr = btbcm_set_bdaddr;
abbaf50e 2670 }
10d4c673 2671
941521e2 2672 if (id->driver_info & BTUSB_BCM_APPLE)
c2bfb100 2673 hdev->setup = btbcm_setup_apple;
c2bfb100 2674#endif
17b2772b 2675
cb8d6597 2676 if (id->driver_info & BTUSB_INTEL) {
dffd30ee 2677 hdev->setup = btusb_setup_intel;
bfbd45e9 2678 hdev->shutdown = btusb_shutdown_intel;
4185a0f5 2679 hdev->set_bdaddr = btintel_set_bdaddr;
c33fb9b4 2680 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
c1154842 2681 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
cb8d6597 2682 }
dffd30ee 2683
cda0dd78
MH		 2684 if (id->driver_info & BTUSB_INTEL_NEW) {
2685 hdev->send = btusb_send_frame_intel;
2686 hdev->setup = btusb_setup_intel_new;
eeb6abe9 2687 hdev->hw_error = btintel_hw_error;
4185a0f5 2688 hdev->set_bdaddr = btintel_set_bdaddr;
b970c5ba 2689 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
cda0dd78
MH		 2690 }
2691
ae8df494
AK		 2692 if (id->driver_info & BTUSB_MARVELL)
2693 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
2694
661cf88a
MH		 2695 if (id->driver_info & BTUSB_SWAVE) {
2696 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
d57dbe77 2697 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
661cf88a 2698 }
d57dbe77 2699
40df783d
MH		 2700 if (id->driver_info & BTUSB_INTEL_BOOT)
2701 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
2702
79f0c87d 2703 if (id->driver_info & BTUSB_ATH3012) {
5859223e 2704 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
3d50d51a 2705 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
79f0c87d
JP		 2706 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
2707 }
5859223e 2708
3267c884
KBYT		 2709 if (id->driver_info & BTUSB_QCA_ROME) {
2710 data->setup_on_usb = btusb_setup_qca;
2711 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
2712 }
2713
db33c77d 2714#ifdef CONFIG_BT_HCIBTUSB_RTL
04b8c814 2715 if (id->driver_info & BTUSB_REALTEK) {
db33c77d 2716 hdev->setup = btrtl_setup_realtek;
04b8c814
DD		 2717
2718 /* Realtek devices lose their updated firmware over suspend,
2719 * but the USB hub doesn't notice any status change.
2720 * Explicitly request a device reset on resume.
2721 */
2722 set_bit(BTUSB_RESET_RESUME, &data->flags);
2723 }
db33c77d 2724#endif
a2698a9b 2725
893ba544
MH		 2726 if (id->driver_info & BTUSB_AMP) {
2727 /* AMP controllers do not support SCO packets */
2728 data->isoc = NULL;
2729 } else {
2730 /* Interface numbers are hardcoded in the specification */
2731 data->isoc = usb_ifnum_to_if(data->udev, 1);
2732 }
9bfa35fe 2733
7a9d4020 2734 if (!reset)
a6c511c6 2735 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
cfeb4145
MH		 2736
2737 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
2738 if (!disable_scofix)
2739 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
2740 }
2741
9bfa35fe
MH		 2742 if (id->driver_info & BTUSB_BROKEN_ISOC)
2743 data->isoc = NULL;
2744
7a9d4020
MH		 2745 if (id->driver_info & BTUSB_DIGIANSWER) {
2746 data->cmdreq_type = USB_TYPE_VENDOR;
a6c511c6 2747 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
7a9d4020
MH		 2748 }
2749
2750 if (id->driver_info & BTUSB_CSR) {
2751 struct usb_device *udev = data->udev;
81cac64b 2752 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
7a9d4020
MH		 2753
2754 /* Old firmware would otherwise execute USB reset */
81cac64b 2755 if (bcdDevice < 0x117)
a6c511c6 2756 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
81cac64b
MH		 2757
2758 /* Fake CSR devices with broken commands */
6cafcd95 2759 if (bcdDevice <= 0x100 || bcdDevice == 0x134)
81cac64b 2760 hdev->setup = btusb_setup_csr;
49c989a0
JP		 2761
2762 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
7a9d4020
MH		 2763 }
2764
cfeb4145 2765 if (id->driver_info & BTUSB_SNIFFER) {
9bfa35fe 2766 struct usb_device *udev = data->udev;
cfeb4145 2767
7a9d4020 2768 /* New sniffer firmware has crippled HCI interface */
cfeb4145
MH		 2769 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
2770 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
2771 }
2772
3a5ef20c
MH		 2773 if (id->driver_info & BTUSB_INTEL_BOOT) {
2774 /* A bug in the bootloader causes that interrupt interface is
2775 * only enabled after receiving SetInterface(0, AltSetting=0).
2776 */
2777 err = usb_set_interface(data->udev, 0, 0);
2778 if (err < 0) {
2779 BT_ERR("failed to set interface 0, alt 0 %d", err);
2780 hci_free_dev(hdev);
2781 return err;
2782 }
2783 }
2784
9bfa35fe
MH		 2785 if (data->isoc) {
2786 err = usb_driver_claim_interface(&btusb_driver,
89e7533d 2787 data->isoc, data);
9bfa35fe
MH		 2788 if (err < 0) {
2789 hci_free_dev(hdev);
9bfa35fe
MH		 2790 return err;
2791 }
2792 }
2793
5e23b923
MH		 2794 err = hci_register_dev(hdev);
2795 if (err < 0) {
2796 hci_free_dev(hdev);
5e23b923
MH		 2797 return err;
2798 }
2799
2800 usb_set_intfdata(intf, data);
2801
2802 return 0;
2803}
2804
2805static void btusb_disconnect(struct usb_interface *intf)
2806{
2807 struct btusb_data *data = usb_get_intfdata(intf);
2808 struct hci_dev *hdev;
2809
2810 BT_DBG("intf %p", intf);
2811
2812 if (!data)
2813 return;
2814
2815 hdev = data->hdev;
5fbcd260
MH		 2816 usb_set_intfdata(data->intf, NULL);
2817
2818 if (data->isoc)
2819 usb_set_intfdata(data->isoc, NULL);
5e23b923
MH		 2820
2821 hci_unregister_dev(hdev);
2822
5fbcd260
MH		 2823 if (intf == data->isoc)
2824 usb_driver_release_interface(&btusb_driver, data->intf);
2825 else if (data->isoc)
2826 usb_driver_release_interface(&btusb_driver, data->isoc);
2827
5e23b923
MH		 2828 hci_free_dev(hdev);
2829}
2830
7bee549e 2831#ifdef CONFIG_PM
6a88adf2
MH		 2832static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
2833{
2834 struct btusb_data *data = usb_get_intfdata(intf);
2835
2836 BT_DBG("intf %p", intf);
2837
2838 if (data->suspend_count++)
2839 return 0;
2840
7bee549e 2841 spin_lock_irq(&data->txlock);
5b1b0b81 2842 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
7bee549e
ON		 2843 set_bit(BTUSB_SUSPENDING, &data->flags);
2844 spin_unlock_irq(&data->txlock);
2845 } else {
2846 spin_unlock_irq(&data->txlock);
2847 data->suspend_count--;
2848 return -EBUSY;
2849 }
2850
6a88adf2
MH		 2851 cancel_work_sync(&data->work);
2852
7bee549e 2853 btusb_stop_traffic(data);
6a88adf2
MH		 2854 usb_kill_anchored_urbs(&data->tx_anchor);
2855
04b8c814
DD		 2856 /* Optionally request a device reset on resume, but only when
2857 * wakeups are disabled. If wakeups are enabled we assume the
2858 * device will stay powered up throughout suspend.
2859 */
2860 if (test_bit(BTUSB_RESET_RESUME, &data->flags) &&
2861 !device_may_wakeup(&data->udev->dev))
2862 data->udev->reset_resume = 1;
2863
6a88adf2
MH		 2864 return 0;
2865}
2866
7bee549e
ON		 2867static void play_deferred(struct btusb_data *data)
2868{
2869 struct urb *urb;
2870 int err;
2871
2872 while ((urb = usb_get_from_anchor(&data->deferred))) {
2873 err = usb_submit_urb(urb, GFP_ATOMIC);
2874 if (err < 0)
2875 break;
2876
2877 data->tx_in_flight++;
2878 }
2879 usb_scuttle_anchored_urbs(&data->deferred);
2880}
2881
6a88adf2
MH		 2882static int btusb_resume(struct usb_interface *intf)
2883{
2884 struct btusb_data *data = usb_get_intfdata(intf);
2885 struct hci_dev *hdev = data->hdev;
7bee549e 2886 int err = 0;
6a88adf2
MH		 2887
2888 BT_DBG("intf %p", intf);
2889
2890 if (--data->suspend_count)
2891 return 0;
2892
2893 if (!test_bit(HCI_RUNNING, &hdev->flags))
7bee549e 2894 goto done;
6a88adf2
MH		 2895
2896 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
2897 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
2898 if (err < 0) {
2899 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
7bee549e 2900 goto failed;
6a88adf2
MH		 2901 }
2902 }
2903
2904 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
43c2e57f
MH		 2905 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
2906 if (err < 0) {
6a88adf2 2907 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
7bee549e
ON		 2908 goto failed;
2909 }
2910
2911 btusb_submit_bulk_urb(hdev, GFP_NOIO);
6a88adf2
MH		 2912 }
2913
2914 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2915 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
2916 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2917 else
2918 btusb_submit_isoc_urb(hdev, GFP_NOIO);
2919 }
2920
7bee549e
ON		 2921 spin_lock_irq(&data->txlock);
2922 play_deferred(data);
2923 clear_bit(BTUSB_SUSPENDING, &data->flags);
2924 spin_unlock_irq(&data->txlock);
2925 schedule_work(&data->work);
2926
6a88adf2 2927 return 0;
7bee549e
ON		 2928
2929failed:
2930 usb_scuttle_anchored_urbs(&data->deferred);
2931done:
2932 spin_lock_irq(&data->txlock);
2933 clear_bit(BTUSB_SUSPENDING, &data->flags);
2934 spin_unlock_irq(&data->txlock);
2935
2936 return err;
6a88adf2 2937}
7bee549e 2938#endif
6a88adf2 2939
5e23b923
MH		 2940static struct usb_driver btusb_driver = {
2941 .name = "btusb",
2942 .probe = btusb_probe,
2943 .disconnect = btusb_disconnect,
7bee549e 2944#ifdef CONFIG_PM
6a88adf2
MH		 2945 .suspend = btusb_suspend,
2946 .resume = btusb_resume,
7bee549e 2947#endif
5e23b923 2948 .id_table = btusb_table,
7bee549e 2949 .supports_autosuspend = 1,
e1f12eb6 2950 .disable_hub_initiated_lpm = 1,
5e23b923
MH		 2951};
2952
93f1508c 2953module_usb_driver(btusb_driver);
5e23b923 2954
cfeb4145
MH		 2955module_param(disable_scofix, bool, 0644);
2956MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
2957
2958module_param(force_scofix, bool, 0644);
2959MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
2960
2961module_param(reset, bool, 0644);
2962MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
2963
5e23b923
MH		 2964MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
2965MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
2966MODULE_VERSION(VERSION);
2967MODULE_LICENSE("GPL");
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