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Bluetooth: hci_intel: Enable IRQ wake capability
[thirdparty/kernel/stable.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(HCI_RUNNING, &hdev->flags))
7bee549e 944 goto done;
5e23b923
MH		 945
946 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
7bee549e 947 goto done;
5e23b923 948
2eda66f4 949 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
43c2e57f
MH		 950 if (err < 0)
951 goto failed;
952
953 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
5e23b923 954 if (err < 0) {
43c2e57f
MH		 955 usb_kill_anchored_urbs(&data->intr_anchor);
956 goto failed;
5e23b923
MH		 957 }
958
43c2e57f
MH		 959 set_bit(BTUSB_BULK_RUNNING, &data->flags);
960 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
961
7bee549e
ON		 962done:
963 usb_autopm_put_interface(data->intf);
43c2e57f
MH		 964 return 0;
965
966failed:
967 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
968 clear_bit(HCI_RUNNING, &hdev->flags);
7bee549e 969 usb_autopm_put_interface(data->intf);
5e23b923
MH		 970 return err;
971}
972
7bee549e
ON		 973static void btusb_stop_traffic(struct btusb_data *data)
974{
975 usb_kill_anchored_urbs(&data->intr_anchor);
976 usb_kill_anchored_urbs(&data->bulk_anchor);
977 usb_kill_anchored_urbs(&data->isoc_anchor);
978}
979
5e23b923
MH		 980static int btusb_close(struct hci_dev *hdev)
981{
155961e8 982 struct btusb_data *data = hci_get_drvdata(hdev);
7bee549e 983 int err;
5e23b923
MH		 984
985 BT_DBG("%s", hdev->name);
986
987 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
988 return 0;
989
e8c3c3d2 990 cancel_work_sync(&data->work);
404291ac 991 cancel_work_sync(&data->waker);
e8c3c3d2 992
9bfa35fe 993 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
5e23b923 994 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
5e23b923 995 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
7bee549e
ON		 996
997 btusb_stop_traffic(data);
803b5836
MH		 998 btusb_free_frags(data);
999
7bee549e
ON		 1000 err = usb_autopm_get_interface(data->intf);
1001 if (err < 0)
7b8e2c1d 1002 goto failed;
7bee549e
ON		 1003
1004 data->intf->needs_remote_wakeup = 0;
1005 usb_autopm_put_interface(data->intf);
5e23b923 1006
7b8e2c1d
ON		 1007failed:
1008 usb_scuttle_anchored_urbs(&data->deferred);
5e23b923
MH		 1009 return 0;
1010}
1011
1012static int btusb_flush(struct hci_dev *hdev)
1013{
155961e8 1014 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 1015
1016 BT_DBG("%s", hdev->name);
1017
1018 usb_kill_anchored_urbs(&data->tx_anchor);
803b5836 1019 btusb_free_frags(data);
5e23b923
MH		 1020
1021 return 0;
1022}
1023
047b2ec8 1024static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
5e23b923 1025{
155961e8 1026 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 1027 struct usb_ctrlrequest *dr;
1028 struct urb *urb;
1029 unsigned int pipe;
5e23b923 1030
047b2ec8
MH		 1031 urb = usb_alloc_urb(0, GFP_KERNEL);
1032 if (!urb)
1033 return ERR_PTR(-ENOMEM);
5e23b923 1034
047b2ec8
MH		 1035 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
1036 if (!dr) {
1037 usb_free_urb(urb);
1038 return ERR_PTR(-ENOMEM);
1039 }
5e23b923 1040
047b2ec8 1041 dr->bRequestType = data->cmdreq_type;
893ba544 1042 dr->bRequest = data->cmdreq;
047b2ec8
MH		 1043 dr->wIndex = 0;
1044 dr->wValue = 0;
1045 dr->wLength = __cpu_to_le16(skb->len);
7bd8f09f 1046
047b2ec8 1047 pipe = usb_sndctrlpipe(data->udev, 0x00);
5e23b923 1048
89e7533d 1049 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
047b2ec8 1050 skb->data, skb->len, btusb_tx_complete, skb);
5e23b923 1051
89e7533d 1052 skb->dev = (void *)hdev;
5e23b923 1053
047b2ec8
MH		 1054 return urb;
1055}
5e23b923 1056
047b2ec8
MH		 1057static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
1058{
1059 struct btusb_data *data = hci_get_drvdata(hdev);
1060 struct urb *urb;
1061 unsigned int pipe;
5e23b923 1062
047b2ec8
MH		 1063 if (!data->bulk_tx_ep)
1064 return ERR_PTR(-ENODEV);
9bfa35fe 1065
047b2ec8
MH		 1066 urb = usb_alloc_urb(0, GFP_KERNEL);
1067 if (!urb)
1068 return ERR_PTR(-ENOMEM);
5e23b923 1069
047b2ec8 1070 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
5e23b923 1071
047b2ec8
MH		 1072 usb_fill_bulk_urb(urb, data->udev, pipe,
1073 skb->data, skb->len, btusb_tx_complete, skb);
5e23b923 1074
89e7533d 1075 skb->dev = (void *)hdev;
5e23b923 1076
047b2ec8
MH		 1077 return urb;
1078}
9bfa35fe 1079
047b2ec8
MH		 1080static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
1081{
1082 struct btusb_data *data = hci_get_drvdata(hdev);
1083 struct urb *urb;
1084 unsigned int pipe;
9bfa35fe 1085
047b2ec8
MH		 1086 if (!data->isoc_tx_ep)
1087 return ERR_PTR(-ENODEV);
9bfa35fe 1088
047b2ec8
MH		 1089 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
1090 if (!urb)
1091 return ERR_PTR(-ENOMEM);
9bfa35fe 1092
047b2ec8 1093 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
9bfa35fe 1094
047b2ec8
MH		 1095 usb_fill_int_urb(urb, data->udev, pipe,
1096 skb->data, skb->len, btusb_isoc_tx_complete,
1097 skb, data->isoc_tx_ep->bInterval);
9bfa35fe 1098
047b2ec8 1099 urb->transfer_flags = URB_ISO_ASAP;
5e23b923 1100
047b2ec8
MH		 1101 __fill_isoc_descriptor(urb, skb->len,
1102 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
5e23b923 1103
89e7533d 1104 skb->dev = (void *)hdev;
047b2ec8
MH		 1105
1106 return urb;
1107}
1108
1109static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
1110{
1111 struct btusb_data *data = hci_get_drvdata(hdev);
1112 int err;
7bee549e 1113
5e23b923
MH		 1114 usb_anchor_urb(urb, &data->tx_anchor);
1115
e9753eff 1116 err = usb_submit_urb(urb, GFP_KERNEL);
5e23b923 1117 if (err < 0) {
5a9b80e2
PB		 1118 if (err != -EPERM && err != -ENODEV)
1119 BT_ERR("%s urb %p submission failed (%d)",
89e7533d 1120 hdev->name, urb, -err);
5e23b923
MH		 1121 kfree(urb->setup_packet);
1122 usb_unanchor_urb(urb);
7bee549e
ON		 1123 } else {
1124 usb_mark_last_busy(data->udev);
5e23b923
MH		 1125 }
1126
54a8a79c 1127 usb_free_urb(urb);
5e23b923
MH		 1128 return err;
1129}
1130
047b2ec8
MH		 1131static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
1132{
1133 struct btusb_data *data = hci_get_drvdata(hdev);
1134 unsigned long flags;
1135 bool suspending;
1136
1137 spin_lock_irqsave(&data->txlock, flags);
1138 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
1139 if (!suspending)
1140 data->tx_in_flight++;
1141 spin_unlock_irqrestore(&data->txlock, flags);
1142
1143 if (!suspending)
1144 return submit_tx_urb(hdev, urb);
1145
1146 usb_anchor_urb(urb, &data->deferred);
1147 schedule_work(&data->waker);
1148
1149 usb_free_urb(urb);
1150 return 0;
1151}
1152
1153static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
1154{
1155 struct urb *urb;
1156
1157 BT_DBG("%s", hdev->name);
1158
1159 if (!test_bit(HCI_RUNNING, &hdev->flags))
1160 return -EBUSY;
1161
1162 switch (bt_cb(skb)->pkt_type) {
1163 case HCI_COMMAND_PKT:
1164 urb = alloc_ctrl_urb(hdev, skb);
1165 if (IS_ERR(urb))
1166 return PTR_ERR(urb);
1167
1168 hdev->stat.cmd_tx++;
1169 return submit_or_queue_tx_urb(hdev, urb);
1170
1171 case HCI_ACLDATA_PKT:
1172 urb = alloc_bulk_urb(hdev, skb);
1173 if (IS_ERR(urb))
1174 return PTR_ERR(urb);
1175
1176 hdev->stat.acl_tx++;
1177 return submit_or_queue_tx_urb(hdev, urb);
1178
1179 case HCI_SCODATA_PKT:
1180 if (hci_conn_num(hdev, SCO_LINK) < 1)
1181 return -ENODEV;
1182
1183 urb = alloc_isoc_urb(hdev, skb);
1184 if (IS_ERR(urb))
1185 return PTR_ERR(urb);
1186
1187 hdev->stat.sco_tx++;
1188 return submit_tx_urb(hdev, urb);
1189 }
1190
1191 return -EILSEQ;
1192}
1193
5e23b923
MH		 1194static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
1195{
155961e8 1196 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 1197
1198 BT_DBG("%s evt %d", hdev->name, evt);
1199
014f7bc7
MH		 1200 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
1201 data->sco_num = hci_conn_num(hdev, SCO_LINK);
43c2e57f 1202 schedule_work(&data->work);
a780efa8 1203 }
5e23b923
MH		 1204}
1205
42b16b3f 1206static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
9bfa35fe 1207{
155961e8 1208 struct btusb_data *data = hci_get_drvdata(hdev);
9bfa35fe
MH		 1209 struct usb_interface *intf = data->isoc;
1210 struct usb_endpoint_descriptor *ep_desc;
1211 int i, err;
1212
1213 if (!data->isoc)
1214 return -ENODEV;
1215
1216 err = usb_set_interface(data->udev, 1, altsetting);
1217 if (err < 0) {
1218 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
1219 return err;
1220 }
1221
1222 data->isoc_altsetting = altsetting;
1223
1224 data->isoc_tx_ep = NULL;
1225 data->isoc_rx_ep = NULL;
1226
1227 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1228 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1229
1230 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
1231 data->isoc_tx_ep = ep_desc;
1232 continue;
1233 }
1234
1235 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
1236 data->isoc_rx_ep = ep_desc;
1237 continue;
1238 }
1239 }
1240
1241 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
1242 BT_ERR("%s invalid SCO descriptors", hdev->name);
1243 return -ENODEV;
1244 }
1245
1246 return 0;
1247}
1248
5e23b923
MH		 1249static void btusb_work(struct work_struct *work)
1250{
1251 struct btusb_data *data = container_of(work, struct btusb_data, work);
1252 struct hci_dev *hdev = data->hdev;
f4001d28 1253 int new_alts;
7bee549e 1254 int err;
5e23b923 1255
014f7bc7 1256 if (data->sco_num > 0) {
08b8b6c4 1257 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
8efdd0cd 1258 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
7bee549e
ON		 1259 if (err < 0) {
1260 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1261 usb_kill_anchored_urbs(&data->isoc_anchor);
1262 return;
1263 }
1264
08b8b6c4 1265 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
7bee549e 1266 }
f4001d28
MA		 1267
1268 if (hdev->voice_setting & 0x0020) {
1269 static const int alts[3] = { 2, 4, 5 };
89e7533d 1270
014f7bc7 1271 new_alts = alts[data->sco_num - 1];
f4001d28 1272 } else {
014f7bc7 1273 new_alts = data->sco_num;
f4001d28
MA		 1274 }
1275
1276 if (data->isoc_altsetting != new_alts) {
9bfa35fe
MH		 1277 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1278 usb_kill_anchored_urbs(&data->isoc_anchor);
1279
f4001d28 1280 if (__set_isoc_interface(hdev, new_alts) < 0)
9bfa35fe
MH		 1281 return;
1282 }
1283
1284 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2eda66f4 1285 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
9bfa35fe
MH		 1286 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1287 else
2eda66f4 1288 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
9bfa35fe
MH		 1289 }
1290 } else {
1291 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1292 usb_kill_anchored_urbs(&data->isoc_anchor);
1293
1294 __set_isoc_interface(hdev, 0);
08b8b6c4 1295 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
8efdd0cd 1296 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
5e23b923
MH		 1297 }
1298}
1299
7bee549e
ON		 1300static void btusb_waker(struct work_struct *work)
1301{
1302 struct btusb_data *data = container_of(work, struct btusb_data, waker);
1303 int err;
1304
1305 err = usb_autopm_get_interface(data->intf);
1306 if (err < 0)
1307 return;
1308
1309 usb_autopm_put_interface(data->intf);
1310}
1311
9f8f962c
MH		 1312static int btusb_setup_bcm92035(struct hci_dev *hdev)
1313{
1314 struct sk_buff *skb;
1315 u8 val = 0x00;
1316
1317 BT_DBG("%s", hdev->name);
1318
1319 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
1320 if (IS_ERR(skb))
1321 BT_ERR("BCM92035 command failed (%ld)", -PTR_ERR(skb));
1322 else
1323 kfree_skb(skb);
1324
1325 return 0;
1326}
1327
81cac64b
MH		 1328static int btusb_setup_csr(struct hci_dev *hdev)
1329{
1330 struct hci_rp_read_local_version *rp;
1331 struct sk_buff *skb;
81cac64b
MH		 1332
1333 BT_DBG("%s", hdev->name);
1334
7cd84d72
MH		 1335 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1336 HCI_INIT_TIMEOUT);
1337 if (IS_ERR(skb)) {
1338 int err = PTR_ERR(skb);
1339 BT_ERR("%s: CSR: Local version failed (%d)", hdev->name, err);
1340 return err;
1341 }
1342
1343 if (skb->len != sizeof(struct hci_rp_read_local_version)) {
1344 BT_ERR("%s: CSR: Local version length mismatch", hdev->name);
1345 kfree_skb(skb);
1346 return -EIO;
1347 }
81cac64b 1348
89e7533d 1349 rp = (struct hci_rp_read_local_version *)skb->data;
81cac64b 1350
6cafcd95
JH		 1351 /* Detect controllers which aren't real CSR ones. */
1352 if (le16_to_cpu(rp->manufacturer) != 10 ||
1353 le16_to_cpu(rp->lmp_subver) == 0x0c5c) {
9641d343
MH		 1354 /* Clear the reset quirk since this is not an actual
1355 * early Bluetooth 1.1 device from CSR.
1356 */
1357 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
81cac64b 1358
9641d343
MH		 1359 /* These fake CSR controllers have all a broken
1360 * stored link key handling and so just disable it.
1361 */
1362 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
1363 }
81cac64b
MH		 1364
1365 kfree_skb(skb);
1366
9641d343 1367 return 0;
81cac64b
MH		 1368}
1369
dffd30ee 1370static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev,
89e7533d 1371 struct intel_version *ver)
dffd30ee
THJA		 1372{
1373 const struct firmware *fw;
1374 char fwname[64];
1375 int ret;
1376
1377 snprintf(fwname, sizeof(fwname),
1378 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq",
1379 ver->hw_platform, ver->hw_variant, ver->hw_revision,
1380 ver->fw_variant, ver->fw_revision, ver->fw_build_num,
1381 ver->fw_build_ww, ver->fw_build_yy);
1382
1383 ret = request_firmware(&fw, fwname, &hdev->dev);
1384 if (ret < 0) {
1385 if (ret == -EINVAL) {
1386 BT_ERR("%s Intel firmware file request failed (%d)",
1387 hdev->name, ret);
1388 return NULL;
1389 }
1390
1391 BT_ERR("%s failed to open Intel firmware file: %s(%d)",
1392 hdev->name, fwname, ret);
1393
1394 /* If the correct firmware patch file is not found, use the
1395 * default firmware patch file instead
1396 */
1397 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq",
1398 ver->hw_platform, ver->hw_variant);
1399 if (request_firmware(&fw, fwname, &hdev->dev) < 0) {
1400 BT_ERR("%s failed to open default Intel fw file: %s",
1401 hdev->name, fwname);
1402 return NULL;
1403 }
1404 }
1405
1406 BT_INFO("%s: Intel Bluetooth firmware file: %s", hdev->name, fwname);
1407
1408 return fw;
1409}
1410
1411static int btusb_setup_intel_patching(struct hci_dev *hdev,
1412 const struct firmware *fw,
1413 const u8 **fw_ptr, int *disable_patch)
1414{
1415 struct sk_buff *skb;
1416 struct hci_command_hdr *cmd;
1417 const u8 *cmd_param;
1418 struct hci_event_hdr *evt = NULL;
1419 const u8 *evt_param = NULL;
1420 int remain = fw->size - (*fw_ptr - fw->data);
1421
1422 /* The first byte indicates the types of the patch command or event.
1423 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes
1424 * in the current firmware buffer doesn't start with 0x01 or
1425 * the size of remain buffer is smaller than HCI command header,
1426 * the firmware file is corrupted and it should stop the patching
1427 * process.
1428 */
1429 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) {
1430 BT_ERR("%s Intel fw corrupted: invalid cmd read", hdev->name);
1431 return -EINVAL;
1432 }
1433 (*fw_ptr)++;
1434 remain--;
1435
1436 cmd = (struct hci_command_hdr *)(*fw_ptr);
1437 *fw_ptr += sizeof(*cmd);
1438 remain -= sizeof(*cmd);
1439
1440 /* Ensure that the remain firmware data is long enough than the length
1441 * of command parameter. If not, the firmware file is corrupted.
1442 */
1443 if (remain < cmd->plen) {
1444 BT_ERR("%s Intel fw corrupted: invalid cmd len", hdev->name);
1445 return -EFAULT;
1446 }
1447
1448 /* If there is a command that loads a patch in the firmware
1449 * file, then enable the patch upon success, otherwise just
1450 * disable the manufacturer mode, for example patch activation
1451 * is not required when the default firmware patch file is used
1452 * because there are no patch data to load.
1453 */
1454 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e)
1455 *disable_patch = 0;
1456
1457 cmd_param = *fw_ptr;
1458 *fw_ptr += cmd->plen;
1459 remain -= cmd->plen;
1460
1461 /* This reads the expected events when the above command is sent to the
1462 * device. Some vendor commands expects more than one events, for
1463 * example command status event followed by vendor specific event.
1464 * For this case, it only keeps the last expected event. so the command
1465 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of
1466 * last expected event.
1467 */
1468 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) {
1469 (*fw_ptr)++;
1470 remain--;
1471
1472 evt = (struct hci_event_hdr *)(*fw_ptr);
1473 *fw_ptr += sizeof(*evt);
1474 remain -= sizeof(*evt);
1475
1476 if (remain < evt->plen) {
1477 BT_ERR("%s Intel fw corrupted: invalid evt len",
1478 hdev->name);
1479 return -EFAULT;
1480 }
1481
1482 evt_param = *fw_ptr;
1483 *fw_ptr += evt->plen;
1484 remain -= evt->plen;
1485 }
1486
1487 /* Every HCI commands in the firmware file has its correspond event.
1488 * If event is not found or remain is smaller than zero, the firmware
1489 * file is corrupted.
1490 */
1491 if (!evt || !evt_param || remain < 0) {
1492 BT_ERR("%s Intel fw corrupted: invalid evt read", hdev->name);
1493 return -EFAULT;
1494 }
1495
1496 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen,
1497 cmd_param, evt->evt, HCI_INIT_TIMEOUT);
1498 if (IS_ERR(skb)) {
1499 BT_ERR("%s sending Intel patch command (0x%4.4x) failed (%ld)",
1500 hdev->name, cmd->opcode, PTR_ERR(skb));
d9c78e97 1501 return PTR_ERR(skb);
dffd30ee
THJA		 1502 }
1503
1504 /* It ensures that the returned event matches the event data read from
1505 * the firmware file. At fist, it checks the length and then
1506 * the contents of the event.
1507 */
1508 if (skb->len != evt->plen) {
1509 BT_ERR("%s mismatch event length (opcode 0x%4.4x)", hdev->name,
1510 le16_to_cpu(cmd->opcode));
1511 kfree_skb(skb);
1512 return -EFAULT;
1513 }
1514
1515 if (memcmp(skb->data, evt_param, evt->plen)) {
1516 BT_ERR("%s mismatch event parameter (opcode 0x%4.4x)",
1517 hdev->name, le16_to_cpu(cmd->opcode));
1518 kfree_skb(skb);
1519 return -EFAULT;
1520 }
1521 kfree_skb(skb);
1522
1523 return 0;
1524}
1525
1526static int btusb_setup_intel(struct hci_dev *hdev)
1527{
1528 struct sk_buff *skb;
1529 const struct firmware *fw;
1530 const u8 *fw_ptr;
1531 int disable_patch;
1532 struct intel_version *ver;
1533
1534 const u8 mfg_enable[] = { 0x01, 0x00 };
1535 const u8 mfg_disable[] = { 0x00, 0x00 };
1536 const u8 mfg_reset_deactivate[] = { 0x00, 0x01 };
1537 const u8 mfg_reset_activate[] = { 0x00, 0x02 };
1538
1539 BT_DBG("%s", hdev->name);
1540
1541 /* The controller has a bug with the first HCI command sent to it
1542 * returning number of completed commands as zero. This would stall the
1543 * command processing in the Bluetooth core.
1544 *
1545 * As a workaround, send HCI Reset command first which will reset the
1546 * number of completed commands and allow normal command processing
1547 * from now on.
1548 */
1549 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1550 if (IS_ERR(skb)) {
1551 BT_ERR("%s sending initial HCI reset command failed (%ld)",
1552 hdev->name, PTR_ERR(skb));
d9c78e97 1553 return PTR_ERR(skb);
dffd30ee
THJA		 1554 }
1555 kfree_skb(skb);
1556
1557 /* Read Intel specific controller version first to allow selection of
1558 * which firmware file to load.
1559 *
1560 * The returned information are hardware variant and revision plus
1561 * firmware variant, revision and build number.
1562 */
1563 skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT);
1564 if (IS_ERR(skb)) {
1565 BT_ERR("%s reading Intel fw version command failed (%ld)",
1566 hdev->name, PTR_ERR(skb));
d9c78e97 1567 return PTR_ERR(skb);
dffd30ee
THJA		 1568 }
1569
1570 if (skb->len != sizeof(*ver)) {
1571 BT_ERR("%s Intel version event length mismatch", hdev->name);
1572 kfree_skb(skb);
1573 return -EIO;
1574 }
1575
1576 ver = (struct intel_version *)skb->data;
dffd30ee
THJA		 1577
1578 BT_INFO("%s: read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
1579 hdev->name, ver->hw_platform, ver->hw_variant,
1580 ver->hw_revision, ver->fw_variant, ver->fw_revision,
1581 ver->fw_build_num, ver->fw_build_ww, ver->fw_build_yy,
1582 ver->fw_patch_num);
1583
1584 /* fw_patch_num indicates the version of patch the device currently
1585 * have. If there is no patch data in the device, it is always 0x00.
5075edae 1586 * So, if it is other than 0x00, no need to patch the device again.
dffd30ee
THJA		 1587 */
1588 if (ver->fw_patch_num) {
1589 BT_INFO("%s: Intel device is already patched. patch num: %02x",
1590 hdev->name, ver->fw_patch_num);
1591 kfree_skb(skb);
4185a0f5 1592 btintel_check_bdaddr(hdev);
dffd30ee
THJA		 1593 return 0;
1594 }
1595
1596 /* Opens the firmware patch file based on the firmware version read
1597 * from the controller. If it fails to open the matching firmware
1598 * patch file, it tries to open the default firmware patch file.
1599 * If no patch file is found, allow the device to operate without
1600 * a patch.
1601 */
1602 fw = btusb_setup_intel_get_fw(hdev, ver);
1603 if (!fw) {
1604 kfree_skb(skb);
4185a0f5 1605 btintel_check_bdaddr(hdev);
dffd30ee
THJA		 1606 return 0;
1607 }
1608 fw_ptr = fw->data;
1609
ecffc804
MH		 1610 kfree_skb(skb);
1611
dffd30ee
THJA		 1612 /* This Intel specific command enables the manufacturer mode of the
1613 * controller.
1614 *
1615 * Only while this mode is enabled, the driver can download the
1616 * firmware patch data and configuration parameters.
1617 */
1618 skb = __hci_cmd_sync(hdev, 0xfc11, 2, mfg_enable, HCI_INIT_TIMEOUT);
1619 if (IS_ERR(skb)) {
1620 BT_ERR("%s entering Intel manufacturer mode failed (%ld)",
1621 hdev->name, PTR_ERR(skb));
1622 release_firmware(fw);
d9c78e97 1623 return PTR_ERR(skb);
dffd30ee
THJA		 1624 }
1625
dffd30ee
THJA		 1626 kfree_skb(skb);
1627
1628 disable_patch = 1;
1629
1630 /* The firmware data file consists of list of Intel specific HCI
1631 * commands and its expected events. The first byte indicates the
1632 * type of the message, either HCI command or HCI event.
1633 *
1634 * It reads the command and its expected event from the firmware file,
1635 * and send to the controller. Once __hci_cmd_sync_ev() returns,
1636 * the returned event is compared with the event read from the firmware
1637 * file and it will continue until all the messages are downloaded to
1638 * the controller.
1639 *
1640 * Once the firmware patching is completed successfully,
1641 * the manufacturer mode is disabled with reset and activating the
1642 * downloaded patch.
1643 *
1644 * If the firmware patching fails, the manufacturer mode is
1645 * disabled with reset and deactivating the patch.
1646 *
1647 * If the default patch file is used, no reset is done when disabling
1648 * the manufacturer.
1649 */
1650 while (fw->size > fw_ptr - fw->data) {
1651 int ret;
1652
1653 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr,
1654 &disable_patch);
1655 if (ret < 0)
1656 goto exit_mfg_deactivate;
1657 }
1658
1659 release_firmware(fw);
1660
1661 if (disable_patch)
1662 goto exit_mfg_disable;
1663
1664 /* Patching completed successfully and disable the manufacturer mode
1665 * with reset and activate the downloaded firmware patches.
1666 */
1667 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_activate),
1668 mfg_reset_activate, HCI_INIT_TIMEOUT);
1669 if (IS_ERR(skb)) {
1670 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1671 hdev->name, PTR_ERR(skb));
d9c78e97 1672 return PTR_ERR(skb);
dffd30ee
THJA		 1673 }
1674 kfree_skb(skb);
1675
1676 BT_INFO("%s: Intel Bluetooth firmware patch completed and activated",
1677 hdev->name);
1678
4185a0f5 1679 btintel_check_bdaddr(hdev);
dffd30ee
THJA		 1680 return 0;
1681
1682exit_mfg_disable:
1683 /* Disable the manufacturer mode without reset */
1684 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_disable), mfg_disable,
1685 HCI_INIT_TIMEOUT);
1686 if (IS_ERR(skb)) {
1687 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1688 hdev->name, PTR_ERR(skb));
d9c78e97 1689 return PTR_ERR(skb);
dffd30ee
THJA		 1690 }
1691 kfree_skb(skb);
1692
1693 BT_INFO("%s: Intel Bluetooth firmware patch completed", hdev->name);
40cb0984 1694
4185a0f5 1695 btintel_check_bdaddr(hdev);
dffd30ee
THJA		 1696 return 0;
1697
1698exit_mfg_deactivate:
1699 release_firmware(fw);
1700
1701 /* Patching failed. Disable the manufacturer mode with reset and
1702 * deactivate the downloaded firmware patches.
1703 */
1704 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_deactivate),
1705 mfg_reset_deactivate, HCI_INIT_TIMEOUT);
1706 if (IS_ERR(skb)) {
1707 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1708 hdev->name, PTR_ERR(skb));
d9c78e97 1709 return PTR_ERR(skb);
dffd30ee
THJA		 1710 }
1711 kfree_skb(skb);
1712
1713 BT_INFO("%s: Intel Bluetooth firmware patch completed and deactivated",
1714 hdev->name);
1715
4185a0f5 1716 btintel_check_bdaddr(hdev);
dffd30ee
THJA		 1717 return 0;
1718}
1719
cda0dd78
MH		 1720static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
1721{
1722 struct sk_buff *skb;
1723 struct hci_event_hdr *hdr;
1724 struct hci_ev_cmd_complete *evt;
1725
1726 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_ATOMIC);
1727 if (!skb)
1728 return -ENOMEM;
1729
1730 hdr = (struct hci_event_hdr *)skb_put(skb, sizeof(*hdr));
1731 hdr->evt = HCI_EV_CMD_COMPLETE;
1732 hdr->plen = sizeof(*evt) + 1;
1733
1734 evt = (struct hci_ev_cmd_complete *)skb_put(skb, sizeof(*evt));
1735 evt->ncmd = 0x01;
1736 evt->opcode = cpu_to_le16(opcode);
1737
1738 *skb_put(skb, 1) = 0x00;
1739
1740 bt_cb(skb)->pkt_type = HCI_EVENT_PKT;
1741
1742 return hci_recv_frame(hdev, skb);
1743}
1744
1745static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
1746 int count)
1747{
1748 /* When the device is in bootloader mode, then it can send
1749 * events via the bulk endpoint. These events are treated the
1750 * same way as the ones received from the interrupt endpoint.
1751 */
1752 if (test_bit(BTUSB_BOOTLOADER, &data->flags))
1753 return btusb_recv_intr(data, buffer, count);
1754
1755 return btusb_recv_bulk(data, buffer, count);
1756}
1757
ccd6da2a
MH		 1758static void btusb_intel_bootup(struct btusb_data *data, const void *ptr,
1759 unsigned int len)
1760{
1761 const struct intel_bootup *evt = ptr;
1762
1763 if (len != sizeof(*evt))
1764 return;
1765
1766 if (test_and_clear_bit(BTUSB_BOOTING, &data->flags)) {
1767 smp_mb__after_atomic();
1768 wake_up_bit(&data->flags, BTUSB_BOOTING);
1769 }
1770}
1771
1772static void btusb_intel_secure_send_result(struct btusb_data *data,
1773 const void *ptr, unsigned int len)
1774{
1775 const struct intel_secure_send_result *evt = ptr;
1776
1777 if (len != sizeof(*evt))
1778 return;
1779
1780 if (evt->result)
1781 set_bit(BTUSB_FIRMWARE_FAILED, &data->flags);
1782
1783 if (test_and_clear_bit(BTUSB_DOWNLOADING, &data->flags) &&
1784 test_bit(BTUSB_FIRMWARE_LOADED, &data->flags)) {
1785 smp_mb__after_atomic();
1786 wake_up_bit(&data->flags, BTUSB_DOWNLOADING);
1787 }
1788}
1789
cda0dd78
MH		 1790static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb)
1791{
1792 struct btusb_data *data = hci_get_drvdata(hdev);
1793
1794 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
1795 struct hci_event_hdr *hdr = (void *)skb->data;
1796
ccd6da2a
MH		 1797 if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff &&
1798 hdr->plen > 0) {
1799 const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1;
1800 unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1;
1801
1802 switch (skb->data[2]) {
1803 case 0x02:
1804 /* When switching to the operational firmware
1805 * the device sends a vendor specific event
1806 * indicating that the bootup completed.
1807 */
1808 btusb_intel_bootup(data, ptr, len);
1809 break;
1810 case 0x06:
1811 /* When the firmware loading completes the
1812 * device sends out a vendor specific event
1813 * indicating the result of the firmware
1814 * loading.
1815 */
1816 btusb_intel_secure_send_result(data, ptr, len);
1817 break;
fad70972 1818 }
cda0dd78
MH		 1819 }
1820 }
1821
1822 return hci_recv_frame(hdev, skb);
1823}
1824
1825static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
1826{
1827 struct btusb_data *data = hci_get_drvdata(hdev);
1828 struct urb *urb;
1829
1830 BT_DBG("%s", hdev->name);
1831
1832 if (!test_bit(HCI_RUNNING, &hdev->flags))
1833 return -EBUSY;
1834
1835 switch (bt_cb(skb)->pkt_type) {
1836 case HCI_COMMAND_PKT:
1837 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
1838 struct hci_command_hdr *cmd = (void *)skb->data;
1839 __u16 opcode = le16_to_cpu(cmd->opcode);
1840
1841 /* When in bootloader mode and the command 0xfc09
1842 * is received, it needs to be send down the
1843 * bulk endpoint. So allocate a bulk URB instead.
1844 */
1845 if (opcode == 0xfc09)
1846 urb = alloc_bulk_urb(hdev, skb);
1847 else
1848 urb = alloc_ctrl_urb(hdev, skb);
1849
1850 /* When the 0xfc01 command is issued to boot into
1851 * the operational firmware, it will actually not
1852 * send a command complete event. To keep the flow
1853 * control working inject that event here.
1854 */
1855 if (opcode == 0xfc01)
1856 inject_cmd_complete(hdev, opcode);
1857 } else {
1858 urb = alloc_ctrl_urb(hdev, skb);
1859 }
1860 if (IS_ERR(urb))
1861 return PTR_ERR(urb);
1862
1863 hdev->stat.cmd_tx++;
1864 return submit_or_queue_tx_urb(hdev, urb);
1865
1866 case HCI_ACLDATA_PKT:
1867 urb = alloc_bulk_urb(hdev, skb);
1868 if (IS_ERR(urb))
1869 return PTR_ERR(urb);
1870
1871 hdev->stat.acl_tx++;
1872 return submit_or_queue_tx_urb(hdev, urb);
1873
1874 case HCI_SCODATA_PKT:
1875 if (hci_conn_num(hdev, SCO_LINK) < 1)
1876 return -ENODEV;
1877
1878 urb = alloc_isoc_urb(hdev, skb);
1879 if (IS_ERR(urb))
1880 return PTR_ERR(urb);
1881
1882 hdev->stat.sco_tx++;
1883 return submit_tx_urb(hdev, urb);
1884 }
1885
1886 return -EILSEQ;
1887}
1888
cda0dd78
MH		 1889static int btusb_setup_intel_new(struct hci_dev *hdev)
1890{
1891 static const u8 reset_param[] = { 0x00, 0x01, 0x00, 0x01,
1892 0x00, 0x08, 0x04, 0x00 };
1893 struct btusb_data *data = hci_get_drvdata(hdev);
1894 struct sk_buff *skb;
1895 struct intel_version *ver;
1896 struct intel_boot_params *params;
1897 const struct firmware *fw;
1898 const u8 *fw_ptr;
e66890a9 1899 u32 frag_len;
cda0dd78
MH		 1900 char fwname[64];
1901 ktime_t calltime, delta, rettime;
1902 unsigned long long duration;
1903 int err;
1904
1905 BT_DBG("%s", hdev->name);
1906
1907 calltime = ktime_get();
1908
1909 /* Read the Intel version information to determine if the device
1910 * is in bootloader mode or if it already has operational firmware
1911 * loaded.
1912 */
1913 skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT);
1914 if (IS_ERR(skb)) {
1915 BT_ERR("%s: Reading Intel version information failed (%ld)",
1916 hdev->name, PTR_ERR(skb));
1917 return PTR_ERR(skb);
1918 }
1919
1920 if (skb->len != sizeof(*ver)) {
1921 BT_ERR("%s: Intel version event size mismatch", hdev->name);
1922 kfree_skb(skb);
1923 return -EILSEQ;
1924 }
1925
1926 ver = (struct intel_version *)skb->data;
cda0dd78
MH		 1927
1928 /* The hardware platform number has a fixed value of 0x37 and
1929 * for now only accept this single value.
1930 */
1931 if (ver->hw_platform != 0x37) {
1932 BT_ERR("%s: Unsupported Intel hardware platform (%u)",
1933 hdev->name, ver->hw_platform);
1934 kfree_skb(skb);
1935 return -EINVAL;
1936 }
1937
1938 /* At the moment only the hardware variant iBT 3.0 (LnP/SfP) is
1939 * supported by this firmware loading method. This check has been
1940 * put in place to ensure correct forward compatibility options
1941 * when newer hardware variants come along.
1942 */
1943 if (ver->hw_variant != 0x0b) {
1944 BT_ERR("%s: Unsupported Intel hardware variant (%u)",
1945 hdev->name, ver->hw_variant);
1946 kfree_skb(skb);
1947 return -EINVAL;
1948 }
1949
7feb99e1 1950 btintel_version_info(hdev, ver);
cda0dd78
MH		 1951
1952 /* The firmware variant determines if the device is in bootloader
1953 * mode or is running operational firmware. The value 0x06 identifies
1954 * the bootloader and the value 0x23 identifies the operational
1955 * firmware.
1956 *
1957 * When the operational firmware is already present, then only
1958 * the check for valid Bluetooth device address is needed. This
1959 * determines if the device will be added as configured or
1960 * unconfigured controller.
1961 *
1962 * It is not possible to use the Secure Boot Parameters in this
1963 * case since that command is only available in bootloader mode.
1964 */
1965 if (ver->fw_variant == 0x23) {
1966 kfree_skb(skb);
1967 clear_bit(BTUSB_BOOTLOADER, &data->flags);
4185a0f5 1968 btintel_check_bdaddr(hdev);
cda0dd78
MH		 1969 return 0;
1970 }
1971
1972 /* If the device is not in bootloader mode, then the only possible
1973 * choice is to return an error and abort the device initialization.
1974 */
1975 if (ver->fw_variant != 0x06) {
1976 BT_ERR("%s: Unsupported Intel firmware variant (%u)",
1977 hdev->name, ver->fw_variant);
1978 kfree_skb(skb);
1979 return -ENODEV;
1980 }
1981
1982 kfree_skb(skb);
1983
1984 /* Read the secure boot parameters to identify the operating
1985 * details of the bootloader.
1986 */
1987 skb = __hci_cmd_sync(hdev, 0xfc0d, 0, NULL, HCI_INIT_TIMEOUT);
1988 if (IS_ERR(skb)) {
1989 BT_ERR("%s: Reading Intel boot parameters failed (%ld)",
1990 hdev->name, PTR_ERR(skb));
1991 return PTR_ERR(skb);
1992 }
1993
1994 if (skb->len != sizeof(*params)) {
1995 BT_ERR("%s: Intel boot parameters size mismatch", hdev->name);
1996 kfree_skb(skb);
1997 return -EILSEQ;
1998 }
1999
2000 params = (struct intel_boot_params *)skb->data;
cda0dd78
MH		 2001
2002 BT_INFO("%s: Device revision is %u", hdev->name,
2003 le16_to_cpu(params->dev_revid));
2004
2005 BT_INFO("%s: Secure boot is %s", hdev->name,
2006 params->secure_boot ? "enabled" : "disabled");
2007
2008 BT_INFO("%s: Minimum firmware build %u week %u %u", hdev->name,
2009 params->min_fw_build_nn, params->min_fw_build_cw,
2010 2000 + params->min_fw_build_yy);
2011
2012 /* It is required that every single firmware fragment is acknowledged
2013 * with a command complete event. If the boot parameters indicate
2014 * that this bootloader does not send them, then abort the setup.
2015 */
2016 if (params->limited_cce != 0x00) {
2017 BT_ERR("%s: Unsupported Intel firmware loading method (%u)",
2018 hdev->name, params->limited_cce);
2019 kfree_skb(skb);
2020 return -EINVAL;
2021 }
2022
2023 /* If the OTP has no valid Bluetooth device address, then there will
2024 * also be no valid address for the operational firmware.
2025 */
2026 if (!bacmp(&params->otp_bdaddr, BDADDR_ANY)) {
2027 BT_INFO("%s: No device address configured", hdev->name);
2028 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
2029 }
2030
2031 /* With this Intel bootloader only the hardware variant and device
2032 * revision information are used to select the right firmware.
2033 *
2034 * Currently this bootloader support is limited to hardware variant
2035 * iBT 3.0 (LnP/SfP) which is identified by the value 11 (0x0b).
2036 */
2037 snprintf(fwname, sizeof(fwname), "intel/ibt-11-%u.sfi",
2038 le16_to_cpu(params->dev_revid));
2039
2040 err = request_firmware(&fw, fwname, &hdev->dev);
2041 if (err < 0) {
2042 BT_ERR("%s: Failed to load Intel firmware file (%d)",
2043 hdev->name, err);
2044 kfree_skb(skb);
2045 return err;
2046 }
2047
2048 BT_INFO("%s: Found device firmware: %s", hdev->name, fwname);
2049
52cc9168
THJA		 2050 /* Save the DDC file name for later use to apply once the firmware
2051 * downloading is done.
2052 */
2053 snprintf(fwname, sizeof(fwname), "intel/ibt-11-%u.ddc",
2054 le16_to_cpu(params->dev_revid));
2055
cda0dd78
MH		 2056 kfree_skb(skb);
2057
2058 if (fw->size < 644) {
2059 BT_ERR("%s: Invalid size of firmware file (%zu)",
2060 hdev->name, fw->size);
2061 err = -EBADF;
2062 goto done;
2063 }
2064
2065 set_bit(BTUSB_DOWNLOADING, &data->flags);
2066
2067 /* Start the firmware download transaction with the Init fragment
2068 * represented by the 128 bytes of CSS header.
2069 */
09df123d 2070 err = btintel_secure_send(hdev, 0x00, 128, fw->data);
cda0dd78
MH		 2071 if (err < 0) {
2072 BT_ERR("%s: Failed to send firmware header (%d)",
2073 hdev->name, err);
2074 goto done;
2075 }
2076
2077 /* Send the 256 bytes of public key information from the firmware
2078 * as the PKey fragment.
2079 */
09df123d 2080 err = btintel_secure_send(hdev, 0x03, 256, fw->data + 128);
cda0dd78
MH		 2081 if (err < 0) {
2082 BT_ERR("%s: Failed to send firmware public key (%d)",
2083 hdev->name, err);
2084 goto done;
2085 }
2086
2087 /* Send the 256 bytes of signature information from the firmware
2088 * as the Sign fragment.
2089 */
09df123d 2090 err = btintel_secure_send(hdev, 0x02, 256, fw->data + 388);
cda0dd78
MH		 2091 if (err < 0) {
2092 BT_ERR("%s: Failed to send firmware signature (%d)",
2093 hdev->name, err);
2094 goto done;
2095 }
2096
2097 fw_ptr = fw->data + 644;
e66890a9 2098 frag_len = 0;
cda0dd78
MH		 2099
2100 while (fw_ptr - fw->data < fw->size) {
e66890a9 2101 struct hci_command_hdr *cmd = (void *)(fw_ptr + frag_len);
cda0dd78 2102
e66890a9 2103 frag_len += sizeof(*cmd) + cmd->plen;
cda0dd78 2104
5075edae 2105 /* The parameter length of the secure send command requires
e66890a9
MH		 2106 * a 4 byte alignment. It happens so that the firmware file
2107 * contains proper Intel_NOP commands to align the fragments
2108 * as needed.
2109 *
2110 * Send set of commands with 4 byte alignment from the
2111 * firmware data buffer as a single Data fragement.
cda0dd78 2112 */
e66890a9 2113 if (!(frag_len % 4)) {
09df123d 2114 err = btintel_secure_send(hdev, 0x01, frag_len, fw_ptr);
e66890a9
MH		 2115 if (err < 0) {
2116 BT_ERR("%s: Failed to send firmware data (%d)",
2117 hdev->name, err);
2118 goto done;
2119 }
cda0dd78 2120
e66890a9
MH		 2121 fw_ptr += frag_len;
2122 frag_len = 0;
2123 }
cda0dd78
MH		 2124 }
2125
ce6bb929
MH		 2126 set_bit(BTUSB_FIRMWARE_LOADED, &data->flags);
2127
a087a98e
JH		 2128 BT_INFO("%s: Waiting for firmware download to complete", hdev->name);
2129
cda0dd78
MH		 2130 /* Before switching the device into operational mode and with that
2131 * booting the loaded firmware, wait for the bootloader notification
2132 * that all fragments have been successfully received.
2133 *
a087a98e
JH		 2134 * When the event processing receives the notification, then the
2135 * BTUSB_DOWNLOADING flag will be cleared.
2136 *
2137 * The firmware loading should not take longer than 5 seconds
2138 * and thus just timeout if that happens and fail the setup
2139 * of this device.
cda0dd78 2140 */
129a7693
JH		 2141 err = wait_on_bit_timeout(&data->flags, BTUSB_DOWNLOADING,
2142 TASK_INTERRUPTIBLE,
2143 msecs_to_jiffies(5000));
a087a98e
JH		 2144 if (err == 1) {
2145 BT_ERR("%s: Firmware loading interrupted", hdev->name);
2146 err = -EINTR;
2147 goto done;
2148 }
cda0dd78 2149
a087a98e
JH		 2150 if (err) {
2151 BT_ERR("%s: Firmware loading timeout", hdev->name);
2152 err = -ETIMEDOUT;
2153 goto done;
cda0dd78
MH		 2154 }
2155
2156 if (test_bit(BTUSB_FIRMWARE_FAILED, &data->flags)) {
2157 BT_ERR("%s: Firmware loading failed", hdev->name);
2158 err = -ENOEXEC;
2159 goto done;
2160 }
2161
2162 rettime = ktime_get();
2163 delta = ktime_sub(rettime, calltime);
2164 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2165
2166 BT_INFO("%s: Firmware loaded in %llu usecs", hdev->name, duration);
2167
2168done:
2169 release_firmware(fw);
2170
2171 if (err < 0)
2172 return err;
2173
2174 calltime = ktime_get();
2175
2176 set_bit(BTUSB_BOOTING, &data->flags);
2177
2178 skb = __hci_cmd_sync(hdev, 0xfc01, sizeof(reset_param), reset_param,
2179 HCI_INIT_TIMEOUT);
2180 if (IS_ERR(skb))
2181 return PTR_ERR(skb);
2182
2183 kfree_skb(skb);
2184
2185 /* The bootloader will not indicate when the device is ready. This
2186 * is done by the operational firmware sending bootup notification.
fad70972
JH		 2187 *
2188 * Booting into operational firmware should not take longer than
2189 * 1 second. However if that happens, then just fail the setup
2190 * since something went wrong.
cda0dd78 2191 */
fad70972 2192 BT_INFO("%s: Waiting for device to boot", hdev->name);
cda0dd78 2193
129a7693
JH		 2194 err = wait_on_bit_timeout(&data->flags, BTUSB_BOOTING,
2195 TASK_INTERRUPTIBLE,
2196 msecs_to_jiffies(1000));
cda0dd78 2197
fad70972
JH		 2198 if (err == 1) {
2199 BT_ERR("%s: Device boot interrupted", hdev->name);
2200 return -EINTR;
2201 }
cda0dd78 2202
fad70972
JH		 2203 if (err) {
2204 BT_ERR("%s: Device boot timeout", hdev->name);
2205 return -ETIMEDOUT;
cda0dd78
MH		 2206 }
2207
2208 rettime = ktime_get();
2209 delta = ktime_sub(rettime, calltime);
2210 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2211
2212 BT_INFO("%s: Device booted in %llu usecs", hdev->name, duration);
2213
2214 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2215
52cc9168
THJA		 2216 /* Once the device is running in operational mode, it needs to apply
2217 * the device configuration (DDC) parameters.
2218 *
2219 * The device can work without DDC parameters, so even if it fails
2220 * to load the file, no need to fail the setup.
2221 */
e924d3d6 2222 btintel_load_ddc_config(hdev, fwname);
52cc9168 2223
cda0dd78
MH		 2224 return 0;
2225}
2226
bfbd45e9
THJA		 2227static int btusb_shutdown_intel(struct hci_dev *hdev)
2228{
2229 struct sk_buff *skb;
2230 long ret;
2231
2232 /* Some platforms have an issue with BT LED when the interface is
2233 * down or BT radio is turned off, which takes 5 seconds to BT LED
2234 * goes off. This command turns off the BT LED immediately.
2235 */
2236 skb = __hci_cmd_sync(hdev, 0xfc3f, 0, NULL, HCI_INIT_TIMEOUT);
2237 if (IS_ERR(skb)) {
2238 ret = PTR_ERR(skb);
2239 BT_ERR("%s: turning off Intel device LED failed (%ld)",
2240 hdev->name, ret);
2241 return ret;
2242 }
2243 kfree_skb(skb);
2244
2245 return 0;
2246}
2247
ae8df494
AK		 2248static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
2249 const bdaddr_t *bdaddr)
2250{
2251 struct sk_buff *skb;
2252 u8 buf[8];
2253 long ret;
2254
2255 buf[0] = 0xfe;
2256 buf[1] = sizeof(bdaddr_t);
2257 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
2258
2259 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2260 if (IS_ERR(skb)) {
2261 ret = PTR_ERR(skb);
2262 BT_ERR("%s: changing Marvell device address failed (%ld)",
2263 hdev->name, ret);
2264 return ret;
2265 }
2266 kfree_skb(skb);
2267
2268 return 0;
2269}
2270
5859223e
TK		 2271static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
2272 const bdaddr_t *bdaddr)
2273{
2274 struct sk_buff *skb;
2275 u8 buf[10];
2276 long ret;
2277
2278 buf[0] = 0x01;
2279 buf[1] = 0x01;
2280 buf[2] = 0x00;
2281 buf[3] = sizeof(bdaddr_t);
2282 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
2283
2284 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2285 if (IS_ERR(skb)) {
2286 ret = PTR_ERR(skb);
2287 BT_ERR("%s: Change address command failed (%ld)",
2288 hdev->name, ret);
2289 return ret;
2290 }
2291 kfree_skb(skb);
2292
2293 return 0;
2294}
2295
3267c884
KBYT		 2296#define QCA_DFU_PACKET_LEN 4096
2297
2298#define QCA_GET_TARGET_VERSION 0x09
2299#define QCA_CHECK_STATUS 0x05
2300#define QCA_DFU_DOWNLOAD 0x01
2301
2302#define QCA_SYSCFG_UPDATED 0x40
2303#define QCA_PATCH_UPDATED 0x80
2304#define QCA_DFU_TIMEOUT 3000
2305
2306struct qca_version {
2307 __le32 rom_version;
2308 __le32 patch_version;
2309 __le32 ram_version;
2310 __le32 ref_clock;
2311 __u8 reserved[4];
2312} __packed;
2313
2314struct qca_rampatch_version {
2315 __le16 rom_version;
2316 __le16 patch_version;
2317} __packed;
2318
2319struct qca_device_info {
bf906b3d
KBYT		 2320 u32 rom_version;
2321 u8 rampatch_hdr; /* length of header in rampatch */
2322 u8 nvm_hdr; /* length of header in NVM */
2323 u8 ver_offset; /* offset of version structure in rampatch */
3267c884
KBYT		 2324};
2325
2326static const struct qca_device_info qca_devices_table[] = {
2327 { 0x00000100, 20, 4, 10 }, /* Rome 1.0 */
2328 { 0x00000101, 20, 4, 10 }, /* Rome 1.1 */
7f6e6363 2329 { 0x00000200, 28, 4, 18 }, /* Rome 2.0 */
3267c884
KBYT		 2330 { 0x00000201, 28, 4, 18 }, /* Rome 2.1 */
2331 { 0x00000300, 28, 4, 18 }, /* Rome 3.0 */
2332 { 0x00000302, 28, 4, 18 }, /* Rome 3.2 */
2333};
2334
2335static int btusb_qca_send_vendor_req(struct hci_dev *hdev, u8 request,
2336 void *data, u16 size)
2337{
2338 struct btusb_data *btdata = hci_get_drvdata(hdev);
2339 struct usb_device *udev = btdata->udev;
2340 int pipe, err;
2341 u8 *buf;
2342
2343 buf = kmalloc(size, GFP_KERNEL);
2344 if (!buf)
2345 return -ENOMEM;
2346
2347 /* Found some of USB hosts have IOT issues with ours so that we should
2348 * not wait until HCI layer is ready.
2349 */
2350 pipe = usb_rcvctrlpipe(udev, 0);
2351 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
2352 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
2353 if (err < 0) {
2354 BT_ERR("%s: Failed to access otp area (%d)", hdev->name, err);
2355 goto done;
2356 }
2357
2358 memcpy(data, buf, size);
2359
2360done:
2361 kfree(buf);
2362
2363 return err;
2364}
2365
2366static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
2367 const struct firmware *firmware,
2368 size_t hdr_size)
2369{
2370 struct btusb_data *btdata = hci_get_drvdata(hdev);
2371 struct usb_device *udev = btdata->udev;
2372 size_t count, size, sent = 0;
2373 int pipe, len, err;
2374 u8 *buf;
2375
2376 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
2377 if (!buf)
2378 return -ENOMEM;
2379
2380 count = firmware->size;
2381
2382 size = min_t(size_t, count, hdr_size);
2383 memcpy(buf, firmware->data, size);
2384
2385 /* USB patches should go down to controller through USB path
2386 * because binary format fits to go down through USB channel.
2387 * USB control path is for patching headers and USB bulk is for
2388 * patch body.
2389 */
2390 pipe = usb_sndctrlpipe(udev, 0);
2391 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
2392 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
2393 if (err < 0) {
2394 BT_ERR("%s: Failed to send headers (%d)", hdev->name, err);
2395 goto done;
2396 }
2397
2398 sent += size;
2399 count -= size;
2400
2401 while (count) {
2402 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
2403
2404 memcpy(buf, firmware->data + sent, size);
2405
2406 pipe = usb_sndbulkpipe(udev, 0x02);
2407 err = usb_bulk_msg(udev, pipe, buf, size, &len,
2408 QCA_DFU_TIMEOUT);
2409 if (err < 0) {
2410 BT_ERR("%s: Failed to send body at %zd of %zd (%d)",
2411 hdev->name, sent, firmware->size, err);
2412 break;
2413 }
2414
2415 if (size != len) {
2416 BT_ERR("%s: Failed to get bulk buffer", hdev->name);
2417 err = -EILSEQ;
2418 break;
2419 }
2420
2421 sent += size;
2422 count -= size;
2423 }
2424
2425done:
2426 kfree(buf);
2427 return err;
2428}
2429
2430static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
2431 struct qca_version *ver,
2432 const struct qca_device_info *info)
2433{
2434 struct qca_rampatch_version *rver;
2435 const struct firmware *fw;
bf906b3d
KBYT		 2436 u32 ver_rom, ver_patch;
2437 u16 rver_rom, rver_patch;
3267c884
KBYT		 2438 char fwname[64];
2439 int err;
2440
bf906b3d
KBYT		 2441 ver_rom = le32_to_cpu(ver->rom_version);
2442 ver_patch = le32_to_cpu(ver->patch_version);
2443
2444 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom);
3267c884
KBYT		 2445
2446 err = request_firmware(&fw, fwname, &hdev->dev);
2447 if (err) {
2448 BT_ERR("%s: failed to request rampatch file: %s (%d)",
2449 hdev->name, fwname, err);
2450 return err;
2451 }
2452
2453 BT_INFO("%s: using rampatch file: %s", hdev->name, fwname);
bf906b3d 2454
3267c884 2455 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
bf906b3d
KBYT		 2456 rver_rom = le16_to_cpu(rver->rom_version);
2457 rver_patch = le16_to_cpu(rver->patch_version);
2458
3267c884 2459 BT_INFO("%s: QCA: patch rome 0x%x build 0x%x, firmware rome 0x%x "
bf906b3d
KBYT		 2460 "build 0x%x", hdev->name, rver_rom, rver_patch, ver_rom,
2461 ver_patch);
3267c884 2462
bf906b3d 2463 if (rver_rom != ver_rom || rver_patch <= ver_patch) {
3267c884
KBYT		 2464 BT_ERR("%s: rampatch file version did not match with firmware",
2465 hdev->name);
2466 err = -EINVAL;
2467 goto done;
2468 }
2469
2470 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
2471
2472done:
2473 release_firmware(fw);
2474
2475 return err;
2476}
2477
2478static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
2479 struct qca_version *ver,
2480 const struct qca_device_info *info)
2481{
2482 const struct firmware *fw;
2483 char fwname[64];
2484 int err;
2485
2486 snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin",
2487 le32_to_cpu(ver->rom_version));
2488
2489 err = request_firmware(&fw, fwname, &hdev->dev);
2490 if (err) {
2491 BT_ERR("%s: failed to request NVM file: %s (%d)",
2492 hdev->name, fwname, err);
2493 return err;
2494 }
2495
2496 BT_INFO("%s: using NVM file: %s", hdev->name, fwname);
2497
2498 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
2499
2500 release_firmware(fw);
2501
2502 return err;
2503}
2504
2505static int btusb_setup_qca(struct hci_dev *hdev)
2506{
2507 const struct qca_device_info *info = NULL;
2508 struct qca_version ver;
bf906b3d 2509 u32 ver_rom;
3267c884
KBYT		 2510 u8 status;
2511 int i, err;
2512
2513 err = btusb_qca_send_vendor_req(hdev, QCA_GET_TARGET_VERSION, &ver,
eb50042f 2514 sizeof(ver));
3267c884
KBYT		 2515 if (err < 0)
2516 return err;
2517
bf906b3d 2518 ver_rom = le32_to_cpu(ver.rom_version);
3267c884 2519 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
bf906b3d 2520 if (ver_rom == qca_devices_table[i].rom_version)
3267c884
KBYT		 2521 info = &qca_devices_table[i];
2522 }
2523 if (!info) {
2524 BT_ERR("%s: don't support firmware rome 0x%x", hdev->name,
bf906b3d 2525 ver_rom);
3267c884
KBYT		 2526 return -ENODEV;
2527 }
2528
2529 err = btusb_qca_send_vendor_req(hdev, QCA_CHECK_STATUS, &status,
2530 sizeof(status));
2531 if (err < 0)
2532 return err;
2533
2534 if (!(status & QCA_PATCH_UPDATED)) {
2535 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
2536 if (err < 0)
2537 return err;
2538 }
2539
2540 if (!(status & QCA_SYSCFG_UPDATED)) {
2541 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
2542 if (err < 0)
2543 return err;
2544 }
2545
2546 return 0;
2547}
2548
5e23b923 2549static int btusb_probe(struct usb_interface *intf,
89e7533d 2550 const struct usb_device_id *id)
5e23b923
MH		 2551{
2552 struct usb_endpoint_descriptor *ep_desc;
2553 struct btusb_data *data;
2554 struct hci_dev *hdev;
2555 int i, err;
2556
2557 BT_DBG("intf %p id %p", intf, id);
2558
cfeb4145 2559 /* interface numbers are hardcoded in the spec */
5e23b923
MH		 2560 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
2561 return -ENODEV;
2562
2563 if (!id->driver_info) {
2564 const struct usb_device_id *match;
89e7533d 2565
5e23b923
MH		 2566 match = usb_match_id(intf, blacklist_table);
2567 if (match)
2568 id = match;
2569 }
2570
cfeb4145
MH		 2571 if (id->driver_info == BTUSB_IGNORE)
2572 return -ENODEV;
2573
2d25f8b4
SL		 2574 if (id->driver_info & BTUSB_ATH3012) {
2575 struct usb_device *udev = interface_to_usbdev(intf);
2576
2577 /* Old firmware would otherwise let ath3k driver load
2578 * patch and sysconfig files */
2579 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
2580 return -ENODEV;
2581 }
2582
98921dbd 2583 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
5e23b923
MH		 2584 if (!data)
2585 return -ENOMEM;
2586
2587 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2588 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2589
2590 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
2591 data->intr_ep = ep_desc;
2592 continue;
2593 }
2594
2595 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
2596 data->bulk_tx_ep = ep_desc;
2597 continue;
2598 }
2599
2600 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
2601 data->bulk_rx_ep = ep_desc;
2602 continue;
2603 }
2604 }
2605
98921dbd 2606 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
5e23b923 2607 return -ENODEV;
5e23b923 2608
893ba544
MH		 2609 if (id->driver_info & BTUSB_AMP) {
2610 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
2611 data->cmdreq = 0x2b;
2612 } else {
2613 data->cmdreq_type = USB_TYPE_CLASS;
2614 data->cmdreq = 0x00;
2615 }
7a9d4020 2616
5e23b923 2617 data->udev = interface_to_usbdev(intf);
5fbcd260 2618 data->intf = intf;
5e23b923 2619
5e23b923 2620 INIT_WORK(&data->work, btusb_work);
7bee549e 2621 INIT_WORK(&data->waker, btusb_waker);
803b5836
MH		 2622 init_usb_anchor(&data->deferred);
2623 init_usb_anchor(&data->tx_anchor);
7bee549e 2624 spin_lock_init(&data->txlock);
5e23b923 2625
5e23b923
MH		 2626 init_usb_anchor(&data->intr_anchor);
2627 init_usb_anchor(&data->bulk_anchor);
9bfa35fe 2628 init_usb_anchor(&data->isoc_anchor);
803b5836 2629 spin_lock_init(&data->rxlock);
5e23b923 2630
cda0dd78
MH		 2631 if (id->driver_info & BTUSB_INTEL_NEW) {
2632 data->recv_event = btusb_recv_event_intel;
2633 data->recv_bulk = btusb_recv_bulk_intel;
2634 set_bit(BTUSB_BOOTLOADER, &data->flags);
2635 } else {
2636 data->recv_event = hci_recv_frame;
2637 data->recv_bulk = btusb_recv_bulk;
2638 }
2cbd3f5c 2639
5e23b923 2640 hdev = hci_alloc_dev();
98921dbd 2641 if (!hdev)
5e23b923 2642 return -ENOMEM;
5e23b923 2643
c13854ce 2644 hdev->bus = HCI_USB;
155961e8 2645 hci_set_drvdata(hdev, data);
5e23b923 2646
893ba544
MH		 2647 if (id->driver_info & BTUSB_AMP)
2648 hdev->dev_type = HCI_AMP;
2649 else
2650 hdev->dev_type = HCI_BREDR;
2651
5e23b923
MH		 2652 data->hdev = hdev;
2653
2654 SET_HCIDEV_DEV(hdev, &intf->dev);
2655
9f8f962c
MH		 2656 hdev->open = btusb_open;
2657 hdev->close = btusb_close;
2658 hdev->flush = btusb_flush;
2659 hdev->send = btusb_send_frame;
2660 hdev->notify = btusb_notify;
2661
2662 if (id->driver_info & BTUSB_BCM92035)
2663 hdev->setup = btusb_setup_bcm92035;
5e23b923 2664
c2bfb100 2665#ifdef CONFIG_BT_HCIBTUSB_BCM
abbaf50e 2666 if (id->driver_info & BTUSB_BCM_PATCHRAM) {
c2bfb100 2667 hdev->setup = btbcm_setup_patchram;
1df1f591 2668 hdev->set_bdaddr = btbcm_set_bdaddr;
abbaf50e 2669 }
10d4c673 2670
941521e2 2671 if (id->driver_info & BTUSB_BCM_APPLE)
c2bfb100 2672 hdev->setup = btbcm_setup_apple;
c2bfb100 2673#endif
17b2772b 2674
cb8d6597 2675 if (id->driver_info & BTUSB_INTEL) {
dffd30ee 2676 hdev->setup = btusb_setup_intel;
bfbd45e9 2677 hdev->shutdown = btusb_shutdown_intel;
4185a0f5 2678 hdev->set_bdaddr = btintel_set_bdaddr;
c33fb9b4 2679 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
c1154842 2680 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
cb8d6597 2681 }
dffd30ee 2682
cda0dd78
MH		 2683 if (id->driver_info & BTUSB_INTEL_NEW) {
2684 hdev->send = btusb_send_frame_intel;
2685 hdev->setup = btusb_setup_intel_new;
eeb6abe9 2686 hdev->hw_error = btintel_hw_error;
4185a0f5 2687 hdev->set_bdaddr = btintel_set_bdaddr;
b970c5ba 2688 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
cda0dd78
MH		 2689 }
2690
ae8df494
AK		 2691 if (id->driver_info & BTUSB_MARVELL)
2692 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
2693
661cf88a
MH		 2694 if (id->driver_info & BTUSB_SWAVE) {
2695 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
d57dbe77 2696 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
661cf88a 2697 }
d57dbe77 2698
40df783d
MH		 2699 if (id->driver_info & BTUSB_INTEL_BOOT)
2700 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
2701
79f0c87d 2702 if (id->driver_info & BTUSB_ATH3012) {
5859223e 2703 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
3d50d51a 2704 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
79f0c87d
JP		 2705 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
2706 }
5859223e 2707
3267c884
KBYT		 2708 if (id->driver_info & BTUSB_QCA_ROME) {
2709 data->setup_on_usb = btusb_setup_qca;
2710 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
2711 }
2712
db33c77d 2713#ifdef CONFIG_BT_HCIBTUSB_RTL
04b8c814 2714 if (id->driver_info & BTUSB_REALTEK) {
db33c77d 2715 hdev->setup = btrtl_setup_realtek;
04b8c814
DD		 2716
2717 /* Realtek devices lose their updated firmware over suspend,
2718 * but the USB hub doesn't notice any status change.
2719 * Explicitly request a device reset on resume.
2720 */
2721 set_bit(BTUSB_RESET_RESUME, &data->flags);
2722 }
db33c77d 2723#endif
a2698a9b 2724
893ba544
MH		 2725 if (id->driver_info & BTUSB_AMP) {
2726 /* AMP controllers do not support SCO packets */
2727 data->isoc = NULL;
2728 } else {
2729 /* Interface numbers are hardcoded in the specification */
2730 data->isoc = usb_ifnum_to_if(data->udev, 1);
2731 }
9bfa35fe 2732
7a9d4020 2733 if (!reset)
a6c511c6 2734 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
cfeb4145
MH		 2735
2736 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
2737 if (!disable_scofix)
2738 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
2739 }
2740
9bfa35fe
MH		 2741 if (id->driver_info & BTUSB_BROKEN_ISOC)
2742 data->isoc = NULL;
2743
7a9d4020
MH		 2744 if (id->driver_info & BTUSB_DIGIANSWER) {
2745 data->cmdreq_type = USB_TYPE_VENDOR;
a6c511c6 2746 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
7a9d4020
MH		 2747 }
2748
2749 if (id->driver_info & BTUSB_CSR) {
2750 struct usb_device *udev = data->udev;
81cac64b 2751 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
7a9d4020
MH		 2752
2753 /* Old firmware would otherwise execute USB reset */
81cac64b 2754 if (bcdDevice < 0x117)
a6c511c6 2755 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
81cac64b
MH		 2756
2757 /* Fake CSR devices with broken commands */
6cafcd95 2758 if (bcdDevice <= 0x100 || bcdDevice == 0x134)
81cac64b 2759 hdev->setup = btusb_setup_csr;
49c989a0
JP		 2760
2761 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
7a9d4020
MH		 2762 }
2763
cfeb4145 2764 if (id->driver_info & BTUSB_SNIFFER) {
9bfa35fe 2765 struct usb_device *udev = data->udev;
cfeb4145 2766
7a9d4020 2767 /* New sniffer firmware has crippled HCI interface */
cfeb4145
MH		 2768 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
2769 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
2770 }
2771
3a5ef20c
MH		 2772 if (id->driver_info & BTUSB_INTEL_BOOT) {
2773 /* A bug in the bootloader causes that interrupt interface is
2774 * only enabled after receiving SetInterface(0, AltSetting=0).
2775 */
2776 err = usb_set_interface(data->udev, 0, 0);
2777 if (err < 0) {
2778 BT_ERR("failed to set interface 0, alt 0 %d", err);
2779 hci_free_dev(hdev);
2780 return err;
2781 }
2782 }
2783
9bfa35fe
MH		 2784 if (data->isoc) {
2785 err = usb_driver_claim_interface(&btusb_driver,
89e7533d 2786 data->isoc, data);
9bfa35fe
MH		 2787 if (err < 0) {
2788 hci_free_dev(hdev);
9bfa35fe
MH		 2789 return err;
2790 }
2791 }
2792
5e23b923
MH		 2793 err = hci_register_dev(hdev);
2794 if (err < 0) {
2795 hci_free_dev(hdev);
5e23b923
MH		 2796 return err;
2797 }
2798
2799 usb_set_intfdata(intf, data);
2800
2801 return 0;
2802}
2803
2804static void btusb_disconnect(struct usb_interface *intf)
2805{
2806 struct btusb_data *data = usb_get_intfdata(intf);
2807 struct hci_dev *hdev;
2808
2809 BT_DBG("intf %p", intf);
2810
2811 if (!data)
2812 return;
2813
2814 hdev = data->hdev;
5fbcd260
MH		 2815 usb_set_intfdata(data->intf, NULL);
2816
2817 if (data->isoc)
2818 usb_set_intfdata(data->isoc, NULL);
5e23b923
MH		 2819
2820 hci_unregister_dev(hdev);
2821
5fbcd260
MH		 2822 if (intf == data->isoc)
2823 usb_driver_release_interface(&btusb_driver, data->intf);
2824 else if (data->isoc)
2825 usb_driver_release_interface(&btusb_driver, data->isoc);
2826
5e23b923
MH		 2827 hci_free_dev(hdev);
2828}
2829
7bee549e 2830#ifdef CONFIG_PM
6a88adf2
MH		 2831static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
2832{
2833 struct btusb_data *data = usb_get_intfdata(intf);
2834
2835 BT_DBG("intf %p", intf);
2836
2837 if (data->suspend_count++)
2838 return 0;
2839
7bee549e 2840 spin_lock_irq(&data->txlock);
5b1b0b81 2841 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
7bee549e
ON		 2842 set_bit(BTUSB_SUSPENDING, &data->flags);
2843 spin_unlock_irq(&data->txlock);
2844 } else {
2845 spin_unlock_irq(&data->txlock);
2846 data->suspend_count--;
2847 return -EBUSY;
2848 }
2849
6a88adf2
MH		 2850 cancel_work_sync(&data->work);
2851
7bee549e 2852 btusb_stop_traffic(data);
6a88adf2
MH		 2853 usb_kill_anchored_urbs(&data->tx_anchor);
2854
04b8c814
DD		 2855 /* Optionally request a device reset on resume, but only when
2856 * wakeups are disabled. If wakeups are enabled we assume the
2857 * device will stay powered up throughout suspend.
2858 */
2859 if (test_bit(BTUSB_RESET_RESUME, &data->flags) &&
2860 !device_may_wakeup(&data->udev->dev))
2861 data->udev->reset_resume = 1;
2862
6a88adf2
MH		 2863 return 0;
2864}
2865
7bee549e
ON		 2866static void play_deferred(struct btusb_data *data)
2867{
2868 struct urb *urb;
2869 int err;
2870
2871 while ((urb = usb_get_from_anchor(&data->deferred))) {
2872 err = usb_submit_urb(urb, GFP_ATOMIC);
2873 if (err < 0)
2874 break;
2875
2876 data->tx_in_flight++;
2877 }
2878 usb_scuttle_anchored_urbs(&data->deferred);
2879}
2880
6a88adf2
MH		 2881static int btusb_resume(struct usb_interface *intf)
2882{
2883 struct btusb_data *data = usb_get_intfdata(intf);
2884 struct hci_dev *hdev = data->hdev;
7bee549e 2885 int err = 0;
6a88adf2
MH		 2886
2887 BT_DBG("intf %p", intf);
2888
2889 if (--data->suspend_count)
2890 return 0;
2891
2892 if (!test_bit(HCI_RUNNING, &hdev->flags))
7bee549e 2893 goto done;
6a88adf2
MH		 2894
2895 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
2896 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
2897 if (err < 0) {
2898 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
7bee549e 2899 goto failed;
6a88adf2
MH		 2900 }
2901 }
2902
2903 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
43c2e57f
MH		 2904 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
2905 if (err < 0) {
6a88adf2 2906 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
7bee549e
ON		 2907 goto failed;
2908 }
2909
2910 btusb_submit_bulk_urb(hdev, GFP_NOIO);
6a88adf2
MH		 2911 }
2912
2913 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2914 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
2915 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2916 else
2917 btusb_submit_isoc_urb(hdev, GFP_NOIO);
2918 }
2919
7bee549e
ON		 2920 spin_lock_irq(&data->txlock);
2921 play_deferred(data);
2922 clear_bit(BTUSB_SUSPENDING, &data->flags);
2923 spin_unlock_irq(&data->txlock);
2924 schedule_work(&data->work);
2925
6a88adf2 2926 return 0;
7bee549e
ON		 2927
2928failed:
2929 usb_scuttle_anchored_urbs(&data->deferred);
2930done:
2931 spin_lock_irq(&data->txlock);
2932 clear_bit(BTUSB_SUSPENDING, &data->flags);
2933 spin_unlock_irq(&data->txlock);
2934
2935 return err;
6a88adf2 2936}
7bee549e 2937#endif
6a88adf2 2938
5e23b923
MH		 2939static struct usb_driver btusb_driver = {
2940 .name = "btusb",
2941 .probe = btusb_probe,
2942 .disconnect = btusb_disconnect,
7bee549e 2943#ifdef CONFIG_PM
6a88adf2
MH		 2944 .suspend = btusb_suspend,
2945 .resume = btusb_resume,
7bee549e 2946#endif
5e23b923 2947 .id_table = btusb_table,
7bee549e 2948 .supports_autosuspend = 1,
e1f12eb6 2949 .disable_hub_initiated_lpm = 1,
5e23b923
MH		 2950};
2951
93f1508c 2952module_usb_driver(btusb_driver);
5e23b923 2953
cfeb4145
MH		 2954module_param(disable_scofix, bool, 0644);
2955MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
2956
2957module_param(force_scofix, bool, 0644);
2958MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
2959
2960module_param(reset, bool, 0644);
2961MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
2962
5e23b923
MH		 2963MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
2964MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
2965MODULE_VERSION(VERSION);
2966MODULE_LICENSE("GPL");
Mirror https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git