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Bluetooth: Fix locking in bt_accept_dequeue after disconnection
[deliverable/linux.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
6c9d435d 63#define BTUSB_BCM2045 0x40000
22f8e9db 64#define BTUSB_IFNUM_2 0x80000
5e23b923 65
54265202 66static const struct usb_device_id btusb_table[] = {
5e23b923
MH		 67 /* Generic Bluetooth USB device */
68 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
69
893ba544
MH		 70 /* Generic Bluetooth AMP device */
71 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP },
72
d63b2826
DD		 73 /* Generic Bluetooth USB interface */
74 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) },
75
1fa6535f 76 /* Apple-specific (Broadcom) devices */
17b2772b 77 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01),
22f8e9db 78 .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 },
1fa6535f 79
178c059e
CYC		 80 /* MediaTek MT76x0E */
81 { USB_DEVICE(0x0e8d, 0x763f) },
82
c510eae3 83 /* Broadcom SoftSailing reporting vendor specific */
2e8b5063 84 { USB_DEVICE(0x0a5c, 0x21e1) },
c510eae3 85
3cd01976
NI		 86 /* Apple MacBookPro 7,1 */
87 { USB_DEVICE(0x05ac, 0x8213) },
88
0a79f674
CL		 89 /* Apple iMac11,1 */
90 { USB_DEVICE(0x05ac, 0x8215) },
91
9c047157
NI		 92 /* Apple MacBookPro6,2 */
93 { USB_DEVICE(0x05ac, 0x8218) },
94
3e3ede7d
EH		 95 /* Apple MacBookAir3,1, MacBookAir3,2 */
96 { USB_DEVICE(0x05ac, 0x821b) },
97
a63b723d
PAVM		 98 /* Apple MacBookAir4,1 */
99 { USB_DEVICE(0x05ac, 0x821f) },
100
88d377b6
MAP		 101 /* Apple MacBookPro8,2 */
102 { USB_DEVICE(0x05ac, 0x821a) },
103
f78b6826
JK		 104 /* Apple MacMini5,1 */
105 { USB_DEVICE(0x05ac, 0x8281) },
106
cfeb4145 107 /* AVM BlueFRITZ! USB v2.0 */
4fcef8ed 108 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE },
cfeb4145
MH		 109
110 /* Bluetooth Ultraport Module from IBM */
111 { USB_DEVICE(0x04bf, 0x030a) },
112
113 /* ALPS Modules with non-standard id */
114 { USB_DEVICE(0x044e, 0x3001) },
115 { USB_DEVICE(0x044e, 0x3002) },
116
117 /* Ericsson with non-standard id */
118 { USB_DEVICE(0x0bdb, 0x1002) },
119
120 /* Canyon CN-BTU1 with HID interfaces */
7a9d4020 121 { USB_DEVICE(0x0c10, 0x0000) },
cfeb4145 122
d13431ca
WJS		 123 /* Broadcom BCM20702A0 */
124 { USB_DEVICE(0x413c, 0x8197) },
125
d049f4e5
MH		 126 /* Broadcom BCM20702B0 (Dynex/Insignia) */
127 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM },
128
2faf71ce
SR		 129 /* Broadcom BCM43142A0 (Foxconn/Lenovo) */
130 { USB_DEVICE(0x105b, 0xe065), .driver_info = BTUSB_BCM_PATCHRAM },
131
98514036 132 /* Foxconn - Hon Hai */
6029ddc2
HS		 133 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01),
134 .driver_info = BTUSB_BCM_PATCHRAM },
98514036 135
8f0c304c
MD		 136 /* Lite-On Technology - Broadcom based */
137 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01),
138 .driver_info = BTUSB_BCM_PATCHRAM },
139
0b880062 140 /* Broadcom devices with vendor specific id */
10d4c673
PG		 141 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01),
142 .driver_info = BTUSB_BCM_PATCHRAM },
92c385f4 143
c2aef6e8 144 /* ASUSTek Computer - Broadcom based */
9a5abdaa
RD		 145 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01),
146 .driver_info = BTUSB_BCM_PATCHRAM },
c2aef6e8 147
5bcecf32 148 /* Belkin F8065bf - Broadcom based */
6331c686
MH		 149 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01),
150 .driver_info = BTUSB_BCM_PATCHRAM },
5bcecf32 151
9113bfd8 152 /* IMC Networks - Broadcom based */
6331c686
MH		 153 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01),
154 .driver_info = BTUSB_BCM_PATCHRAM },
9113bfd8 155
1623d0bf
DT		 156 /* Toshiba Corp - Broadcom based */
157 { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01),
158 .driver_info = BTUSB_BCM_PATCHRAM },
159
40df783d 160 /* Intel Bluetooth USB Bootloader (RAM module) */
d92f2df0
MH		 161 { USB_DEVICE(0x8087, 0x0a5a),
162 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
40df783d 163
5e23b923
MH		 164 { } /* Terminating entry */
165};
166
167MODULE_DEVICE_TABLE(usb, btusb_table);
168
54265202 169static const struct usb_device_id blacklist_table[] = {
cfeb4145
MH		 170 /* CSR BlueCore devices */
171 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
172
173 /* Broadcom BCM2033 without firmware */
174 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
175
6c9d435d
MH		 176 /* Broadcom BCM2045 devices */
177 { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 },
178
be93112a 179 /* Atheros 3011 with sflash firmware */
0b880062
AS		 180 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
181 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
2eeff0b4 182 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE },
0b880062 183 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
be93112a 184 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
6eda541d 185 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
2a7bcccc 186 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
be93112a 187
509e7861
CYC		 188 /* Atheros AR9285 Malbec with sflash firmware */
189 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
190
d9f51b51 191 /* Atheros 3012 with sflash firmware */
0b880062
AS		 192 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
193 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
194 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
195 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
196 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
692c062e 197 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
4b552bc9 198 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
0b880062
AS		 199 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
200 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
201 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
202 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
1fb4e09a 203 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
0b880062
AS		 204 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
205 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
7e730c7f 206 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
ec0810d2 207 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
134d3b35 208 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
0b880062 209 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
cd355ff0 210 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
0b880062 211 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
89d2975f 212 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
a735f9e2 213 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
d66629c1 214 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
2d25f8b4 215 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
94a32d10 216 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
07c0ea87 217 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
b131237c 218 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
1e56f1eb 219 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
0b880062 220 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
ebaf5795 221 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
18e0afab 222 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 },
0b880062 223 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
ac71311e 224 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
0a3658cc 225 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
ca79f232 226 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
0b880062
AS		 227 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
228 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
eed307e2 229 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
5b77a1f3 230 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
3bb30a7c 231 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
033efa92 232 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
fa2f1394 233 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
0d0cef61 234 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
d9f51b51 235
e9036e33
CYC		 236 /* Atheros AR5BBU12 with sflash firmware */
237 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
238
85d59726 239 /* Atheros AR5BBU12 with sflash firmware */
bc21fde2 240 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
0b880062 241 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
85d59726 242
3267c884 243 /* QCA ROME chipset */
2054111b 244 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME },
c9e44474
MH		 245 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME },
246 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME },
3267c884 247
cfeb4145 248 /* Broadcom BCM2035 */
7a9d4020 249 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
0b880062
AS		 250 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
251 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 252
253 /* Broadcom BCM2045 */
7a9d4020
MH		 254 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
255 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
bdbef3d6 256
cfeb4145 257 /* IBM/Lenovo ThinkPad with Broadcom chip */
7a9d4020
MH		 258 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
259 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 260
261 /* HP laptop with Broadcom chip */
7a9d4020 262 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 263
264 /* Dell laptop with Broadcom chip */
7a9d4020 265 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 266
5ddd4a60 267 /* Dell Wireless 370 and 410 devices */
7a9d4020 268 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
5ddd4a60 269 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 270
7a9d4020
MH		 271 /* Belkin F8T012 and F8T013 devices */
272 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
273 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 274
5ddd4a60
MH		 275 /* Asus WL-BTD202 device */
276 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
277
278 /* Kensington Bluetooth USB adapter */
279 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
280
cfeb4145
MH		 281 /* RTX Telecom based adapters with buggy SCO support */
282 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
283 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
284
285 /* CONWISE Technology based adapters with buggy SCO support */
286 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
287
4fcef8ed 288 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
2eeac871 289 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE },
4fcef8ed 290
cfeb4145
MH		 291 /* Digianswer devices */
292 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
293 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
294
295 /* CSR BlueCore Bluetooth Sniffer */
4f64fa80
MH		 296 { USB_DEVICE(0x0a12, 0x0002),
297 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
cfeb4145
MH		 298
299 /* Frontline ComProbe Bluetooth Sniffer */
4f64fa80
MH		 300 { USB_DEVICE(0x16d3, 0x0002),
301 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
cfeb4145 302
cb1ee89f
MH		 303 /* Marvell Bluetooth devices */
304 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
305 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
306
d0ac9eb7 307 /* Intel Bluetooth devices */
407550fe 308 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
dffd30ee 309 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
ef4e5e4a 310 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL },
cda0dd78 311 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_NEW },
dffd30ee 312
d0ac9eb7
MH		 313 /* Other Intel Bluetooth devices */
314 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
315 .driver_info = BTUSB_IGNORE },
ae8df494 316
a2698a9b
DD		 317 /* Realtek Bluetooth devices */
318 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
319 .driver_info = BTUSB_REALTEK },
320
321 /* Additional Realtek 8723AE Bluetooth devices */
322 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
323 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
324
325 /* Additional Realtek 8723BE Bluetooth devices */
326 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
327 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
328 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
329 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
330 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
331
332 /* Additional Realtek 8821AE Bluetooth devices */
333 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
334 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
335 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
336 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
337 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
338
4481c076
PP		 339 /* Silicon Wave based devices */
340 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE },
341
5e23b923
MH		 342 { } /* Terminating entry */
343};
344
9bfa35fe
MH		 345#define BTUSB_MAX_ISOC_FRAMES 10
346
5e23b923
MH		 347#define BTUSB_INTR_RUNNING 0
348#define BTUSB_BULK_RUNNING 1
9bfa35fe 349#define BTUSB_ISOC_RUNNING 2
7bee549e 350#define BTUSB_SUSPENDING 3
08b8b6c4 351#define BTUSB_DID_ISO_RESUME 4
cda0dd78
MH		 352#define BTUSB_BOOTLOADER 5
353#define BTUSB_DOWNLOADING 6
ce6bb929 354#define BTUSB_FIRMWARE_LOADED 7
cda0dd78 355#define BTUSB_FIRMWARE_FAILED 8
ce6bb929 356#define BTUSB_BOOTING 9
04b8c814 357#define BTUSB_RESET_RESUME 10
9d08f504 358#define BTUSB_DIAG_RUNNING 11
5e23b923
MH		 359
360struct btusb_data {
361 struct hci_dev *hdev;
362 struct usb_device *udev;
5fbcd260 363 struct usb_interface *intf;
9bfa35fe 364 struct usb_interface *isoc;
9d08f504 365 struct usb_interface *diag;
5e23b923 366
5e23b923
MH		 367 unsigned long flags;
368
369 struct work_struct work;
7bee549e 370 struct work_struct waker;
5e23b923 371
803b5836 372 struct usb_anchor deferred;
5e23b923 373 struct usb_anchor tx_anchor;
803b5836
MH		 374 int tx_in_flight;
375 spinlock_t txlock;
376
5e23b923
MH		 377 struct usb_anchor intr_anchor;
378 struct usb_anchor bulk_anchor;
9bfa35fe 379 struct usb_anchor isoc_anchor;
9d08f504 380 struct usb_anchor diag_anchor;
803b5836
MH		 381 spinlock_t rxlock;
382
383 struct sk_buff *evt_skb;
384 struct sk_buff *acl_skb;
385 struct sk_buff *sco_skb;
5e23b923
MH		 386
387 struct usb_endpoint_descriptor *intr_ep;
388 struct usb_endpoint_descriptor *bulk_tx_ep;
389 struct usb_endpoint_descriptor *bulk_rx_ep;
9bfa35fe
MH		 390 struct usb_endpoint_descriptor *isoc_tx_ep;
391 struct usb_endpoint_descriptor *isoc_rx_ep;
9d08f504
MH		 392 struct usb_endpoint_descriptor *diag_tx_ep;
393 struct usb_endpoint_descriptor *diag_rx_ep;
9bfa35fe 394
7a9d4020 395 __u8 cmdreq_type;
893ba544 396 __u8 cmdreq;
7a9d4020 397
43c2e57f 398 unsigned int sco_num;
9bfa35fe 399 int isoc_altsetting;
6a88adf2 400 int suspend_count;
2cbd3f5c 401
97307f51 402 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
2cbd3f5c 403 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
ace31982
KBYT		 404
405 int (*setup_on_usb)(struct hci_dev *hdev);
5e23b923
MH		 406};
407
803b5836
MH		 408static inline void btusb_free_frags(struct btusb_data *data)
409{
410 unsigned long flags;
411
412 spin_lock_irqsave(&data->rxlock, flags);
413
414 kfree_skb(data->evt_skb);
415 data->evt_skb = NULL;
416
417 kfree_skb(data->acl_skb);
418 data->acl_skb = NULL;
419
420 kfree_skb(data->sco_skb);
421 data->sco_skb = NULL;
422
423 spin_unlock_irqrestore(&data->rxlock, flags);
424}
425
1ffa4ad0
MH		 426static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
427{
803b5836
MH		 428 struct sk_buff *skb;
429 int err = 0;
430
431 spin_lock(&data->rxlock);
432 skb = data->evt_skb;
433
434 while (count) {
435 int len;
436
437 if (!skb) {
438 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
439 if (!skb) {
440 err = -ENOMEM;
441 break;
442 }
443
618e8bc2
MH		 444 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
445 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE;
803b5836
MH		 446 }
447
618e8bc2 448 len = min_t(uint, hci_skb_expect(skb), count);
803b5836
MH		 449 memcpy(skb_put(skb, len), buffer, len);
450
451 count -= len;
452 buffer += len;
618e8bc2 453 hci_skb_expect(skb) -= len;
803b5836
MH		 454
455 if (skb->len == HCI_EVENT_HDR_SIZE) {
456 /* Complete event header */
618e8bc2 457 hci_skb_expect(skb) = hci_event_hdr(skb)->plen;
803b5836 458
618e8bc2 459 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
803b5836
MH		 460 kfree_skb(skb);
461 skb = NULL;
462
463 err = -EILSEQ;
464 break;
465 }
466 }
467
618e8bc2 468 if (!hci_skb_expect(skb)) {
803b5836 469 /* Complete frame */
97307f51 470 data->recv_event(data->hdev, skb);
803b5836
MH		 471 skb = NULL;
472 }
473 }
474
475 data->evt_skb = skb;
476 spin_unlock(&data->rxlock);
477
478 return err;
1ffa4ad0
MH		 479}
480
481static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
482{
803b5836
MH		 483 struct sk_buff *skb;
484 int err = 0;
485
486 spin_lock(&data->rxlock);
487 skb = data->acl_skb;
488
489 while (count) {
490 int len;
491
492 if (!skb) {
493 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
494 if (!skb) {
495 err = -ENOMEM;
496 break;
497 }
498
618e8bc2
MH		 499 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT;
500 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE;
803b5836
MH		 501 }
502
618e8bc2 503 len = min_t(uint, hci_skb_expect(skb), count);
803b5836
MH		 504 memcpy(skb_put(skb, len), buffer, len);
505
506 count -= len;
507 buffer += len;
618e8bc2 508 hci_skb_expect(skb) -= len;
803b5836
MH		 509
510 if (skb->len == HCI_ACL_HDR_SIZE) {
511 __le16 dlen = hci_acl_hdr(skb)->dlen;
512
513 /* Complete ACL header */
618e8bc2 514 hci_skb_expect(skb) = __le16_to_cpu(dlen);
803b5836 515
618e8bc2 516 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
803b5836
MH		 517 kfree_skb(skb);
518 skb = NULL;
519
520 err = -EILSEQ;
521 break;
522 }
523 }
524
618e8bc2 525 if (!hci_skb_expect(skb)) {
803b5836
MH		 526 /* Complete frame */
527 hci_recv_frame(data->hdev, skb);
528 skb = NULL;
529 }
530 }
531
532 data->acl_skb = skb;
533 spin_unlock(&data->rxlock);
534
535 return err;
1ffa4ad0
MH		 536}
537
538static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
539{
803b5836
MH		 540 struct sk_buff *skb;
541 int err = 0;
542
543 spin_lock(&data->rxlock);
544 skb = data->sco_skb;
545
546 while (count) {
547 int len;
548
549 if (!skb) {
550 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
551 if (!skb) {
552 err = -ENOMEM;
553 break;
554 }
555
618e8bc2
MH		 556 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT;
557 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE;
803b5836
MH		 558 }
559
618e8bc2 560 len = min_t(uint, hci_skb_expect(skb), count);
803b5836
MH		 561 memcpy(skb_put(skb, len), buffer, len);
562
563 count -= len;
564 buffer += len;
618e8bc2 565 hci_skb_expect(skb) -= len;
803b5836
MH		 566
567 if (skb->len == HCI_SCO_HDR_SIZE) {
568 /* Complete SCO header */
618e8bc2 569 hci_skb_expect(skb) = hci_sco_hdr(skb)->dlen;
803b5836 570
618e8bc2 571 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
803b5836
MH		 572 kfree_skb(skb);
573 skb = NULL;
574
575 err = -EILSEQ;
576 break;
577 }
578 }
579
618e8bc2 580 if (!hci_skb_expect(skb)) {
803b5836
MH		 581 /* Complete frame */
582 hci_recv_frame(data->hdev, skb);
583 skb = NULL;
584 }
585 }
586
587 data->sco_skb = skb;
588 spin_unlock(&data->rxlock);
589
590 return err;
1ffa4ad0
MH		 591}
592
5e23b923
MH		 593static void btusb_intr_complete(struct urb *urb)
594{
595 struct hci_dev *hdev = urb->context;
155961e8 596 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 597 int err;
598
89e7533d
MH		 599 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
600 urb->actual_length);
5e23b923
MH		 601
602 if (!test_bit(HCI_RUNNING, &hdev->flags))
603 return;
604
605 if (urb->status == 0) {
9bfa35fe
MH		 606 hdev->stat.byte_rx += urb->actual_length;
607
1ffa4ad0
MH		 608 if (btusb_recv_intr(data, urb->transfer_buffer,
609 urb->actual_length) < 0) {
5e23b923
MH		 610 BT_ERR("%s corrupted event packet", hdev->name);
611 hdev->stat.err_rx++;
612 }
85560c4a
CC		 613 } else if (urb->status == -ENOENT) {
614 /* Avoid suspend failed when usb_kill_urb */
615 return;
5e23b923
MH		 616 }
617
618 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
619 return;
620
7bee549e 621 usb_mark_last_busy(data->udev);
5e23b923
MH		 622 usb_anchor_urb(urb, &data->intr_anchor);
623
624 err = usb_submit_urb(urb, GFP_ATOMIC);
625 if (err < 0) {
4935f1c1
PB		 626 /* -EPERM: urb is being killed;
627 * -ENODEV: device got disconnected */
628 if (err != -EPERM && err != -ENODEV)
61faddf6 629 BT_ERR("%s urb %p failed to resubmit (%d)",
89e7533d 630 hdev->name, urb, -err);
5e23b923
MH		 631 usb_unanchor_urb(urb);
632 }
633}
634
2eda66f4 635static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
5e23b923 636{
155961e8 637 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 638 struct urb *urb;
639 unsigned char *buf;
640 unsigned int pipe;
641 int err, size;
642
643 BT_DBG("%s", hdev->name);
644
9bfa35fe
MH		 645 if (!data->intr_ep)
646 return -ENODEV;
647
2eda66f4 648 urb = usb_alloc_urb(0, mem_flags);
5e23b923
MH		 649 if (!urb)
650 return -ENOMEM;
651
652 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
653
2eda66f4 654 buf = kmalloc(size, mem_flags);
5e23b923
MH		 655 if (!buf) {
656 usb_free_urb(urb);
657 return -ENOMEM;
658 }
659
660 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
661
662 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
89e7533d 663 btusb_intr_complete, hdev, data->intr_ep->bInterval);
5e23b923
MH		 664
665 urb->transfer_flags |= URB_FREE_BUFFER;
666
667 usb_anchor_urb(urb, &data->intr_anchor);
668
2eda66f4 669 err = usb_submit_urb(urb, mem_flags);
5e23b923 670 if (err < 0) {
d4b8d1c9
PB		 671 if (err != -EPERM && err != -ENODEV)
672 BT_ERR("%s urb %p submission failed (%d)",
89e7533d 673 hdev->name, urb, -err);
5e23b923 674 usb_unanchor_urb(urb);
5e23b923
MH		 675 }
676
677 usb_free_urb(urb);
678
679 return err;
680}
681
682static void btusb_bulk_complete(struct urb *urb)
683{
684 struct hci_dev *hdev = urb->context;
155961e8 685 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 686 int err;
687
89e7533d
MH		 688 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
689 urb->actual_length);
5e23b923
MH		 690
691 if (!test_bit(HCI_RUNNING, &hdev->flags))
692 return;
693
694 if (urb->status == 0) {
9bfa35fe
MH		 695 hdev->stat.byte_rx += urb->actual_length;
696
2cbd3f5c 697 if (data->recv_bulk(data, urb->transfer_buffer,
1ffa4ad0 698 urb->actual_length) < 0) {
5e23b923
MH		 699 BT_ERR("%s corrupted ACL packet", hdev->name);
700 hdev->stat.err_rx++;
701 }
85560c4a
CC		 702 } else if (urb->status == -ENOENT) {
703 /* Avoid suspend failed when usb_kill_urb */
704 return;
5e23b923
MH		 705 }
706
707 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
708 return;
709
710 usb_anchor_urb(urb, &data->bulk_anchor);
652fd781 711 usb_mark_last_busy(data->udev);
5e23b923
MH		 712
713 err = usb_submit_urb(urb, GFP_ATOMIC);
714 if (err < 0) {
4935f1c1
PB		 715 /* -EPERM: urb is being killed;
716 * -ENODEV: device got disconnected */
717 if (err != -EPERM && err != -ENODEV)
61faddf6 718 BT_ERR("%s urb %p failed to resubmit (%d)",
89e7533d 719 hdev->name, urb, -err);
5e23b923
MH		 720 usb_unanchor_urb(urb);
721 }
722}
723
2eda66f4 724static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
5e23b923 725{
155961e8 726 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 727 struct urb *urb;
728 unsigned char *buf;
729 unsigned int pipe;
290ba200 730 int err, size = HCI_MAX_FRAME_SIZE;
5e23b923
MH		 731
732 BT_DBG("%s", hdev->name);
733
9bfa35fe
MH		 734 if (!data->bulk_rx_ep)
735 return -ENODEV;
736
2eda66f4 737 urb = usb_alloc_urb(0, mem_flags);
5e23b923
MH		 738 if (!urb)
739 return -ENOMEM;
740
2eda66f4 741 buf = kmalloc(size, mem_flags);
5e23b923
MH		 742 if (!buf) {
743 usb_free_urb(urb);
744 return -ENOMEM;
745 }
746
747 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
748
89e7533d
MH		 749 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
750 btusb_bulk_complete, hdev);
5e23b923
MH		 751
752 urb->transfer_flags |= URB_FREE_BUFFER;
753
7bee549e 754 usb_mark_last_busy(data->udev);
5e23b923
MH		 755 usb_anchor_urb(urb, &data->bulk_anchor);
756
2eda66f4 757 err = usb_submit_urb(urb, mem_flags);
5e23b923 758 if (err < 0) {
d4b8d1c9
PB		 759 if (err != -EPERM && err != -ENODEV)
760 BT_ERR("%s urb %p submission failed (%d)",
89e7533d 761 hdev->name, urb, -err);
5e23b923 762 usb_unanchor_urb(urb);
5e23b923
MH		 763 }
764
765 usb_free_urb(urb);
766
767 return err;
768}
769
9bfa35fe
MH		 770static void btusb_isoc_complete(struct urb *urb)
771{
772 struct hci_dev *hdev = urb->context;
155961e8 773 struct btusb_data *data = hci_get_drvdata(hdev);
9bfa35fe
MH		 774 int i, err;
775
89e7533d
MH		 776 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
777 urb->actual_length);
9bfa35fe
MH		 778
779 if (!test_bit(HCI_RUNNING, &hdev->flags))
780 return;
781
782 if (urb->status == 0) {
783 for (i = 0; i < urb->number_of_packets; i++) {
784 unsigned int offset = urb->iso_frame_desc[i].offset;
785 unsigned int length = urb->iso_frame_desc[i].actual_length;
786
787 if (urb->iso_frame_desc[i].status)
788 continue;
789
790 hdev->stat.byte_rx += length;
791
1ffa4ad0
MH		 792 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
793 length) < 0) {
9bfa35fe
MH		 794 BT_ERR("%s corrupted SCO packet", hdev->name);
795 hdev->stat.err_rx++;
796 }
797 }
85560c4a
CC		 798 } else if (urb->status == -ENOENT) {
799 /* Avoid suspend failed when usb_kill_urb */
800 return;
9bfa35fe
MH		 801 }
802
803 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
804 return;
805
806 usb_anchor_urb(urb, &data->isoc_anchor);
807
808 err = usb_submit_urb(urb, GFP_ATOMIC);
809 if (err < 0) {
4935f1c1
PB		 810 /* -EPERM: urb is being killed;
811 * -ENODEV: device got disconnected */
812 if (err != -EPERM && err != -ENODEV)
61faddf6 813 BT_ERR("%s urb %p failed to resubmit (%d)",
89e7533d 814 hdev->name, urb, -err);
9bfa35fe
MH		 815 usb_unanchor_urb(urb);
816 }
817}
818
42b16b3f 819static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
9bfa35fe
MH		 820{
821 int i, offset = 0;
822
823 BT_DBG("len %d mtu %d", len, mtu);
824
825 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
826 i++, offset += mtu, len -= mtu) {
827 urb->iso_frame_desc[i].offset = offset;
828 urb->iso_frame_desc[i].length = mtu;
829 }
830
831 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
832 urb->iso_frame_desc[i].offset = offset;
833 urb->iso_frame_desc[i].length = len;
834 i++;
835 }
836
837 urb->number_of_packets = i;
838}
839
2eda66f4 840static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
9bfa35fe 841{
155961e8 842 struct btusb_data *data = hci_get_drvdata(hdev);
9bfa35fe
MH		 843 struct urb *urb;
844 unsigned char *buf;
845 unsigned int pipe;
846 int err, size;
847
848 BT_DBG("%s", hdev->name);
849
850 if (!data->isoc_rx_ep)
851 return -ENODEV;
852
2eda66f4 853 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
9bfa35fe
MH		 854 if (!urb)
855 return -ENOMEM;
856
857 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
858 BTUSB_MAX_ISOC_FRAMES;
859
2eda66f4 860 buf = kmalloc(size, mem_flags);
9bfa35fe
MH		 861 if (!buf) {
862 usb_free_urb(urb);
863 return -ENOMEM;
864 }
865
866 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
867
fa0fb93f 868 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
89e7533d 869 hdev, data->isoc_rx_ep->bInterval);
9bfa35fe 870
89e7533d 871 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
9bfa35fe
MH		 872
873 __fill_isoc_descriptor(urb, size,
89e7533d 874 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
9bfa35fe
MH		 875
876 usb_anchor_urb(urb, &data->isoc_anchor);
877
2eda66f4 878 err = usb_submit_urb(urb, mem_flags);
9bfa35fe 879 if (err < 0) {
d4b8d1c9
PB		 880 if (err != -EPERM && err != -ENODEV)
881 BT_ERR("%s urb %p submission failed (%d)",
89e7533d 882 hdev->name, urb, -err);
9bfa35fe 883 usb_unanchor_urb(urb);
9bfa35fe
MH		 884 }
885
886 usb_free_urb(urb);
887
888 return err;
889}
890
9d08f504
MH		 891static void btusb_diag_complete(struct urb *urb)
892{
893 struct hci_dev *hdev = urb->context;
894 struct btusb_data *data = hci_get_drvdata(hdev);
895 int err;
896
897 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
898 urb->actual_length);
899
900 if (urb->status == 0) {
901 struct sk_buff *skb;
902
903 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC);
904 if (skb) {
905 memcpy(skb_put(skb, urb->actual_length),
906 urb->transfer_buffer, urb->actual_length);
907 hci_recv_diag(hdev, skb);
908 }
909 } else if (urb->status == -ENOENT) {
910 /* Avoid suspend failed when usb_kill_urb */
911 return;
912 }
913
914 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags))
915 return;
916
917 usb_anchor_urb(urb, &data->diag_anchor);
918 usb_mark_last_busy(data->udev);
919
920 err = usb_submit_urb(urb, GFP_ATOMIC);
921 if (err < 0) {
922 /* -EPERM: urb is being killed;
923 * -ENODEV: device got disconnected */
924 if (err != -EPERM && err != -ENODEV)
925 BT_ERR("%s urb %p failed to resubmit (%d)",
926 hdev->name, urb, -err);
927 usb_unanchor_urb(urb);
928 }
929}
930
931static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags)
932{
933 struct btusb_data *data = hci_get_drvdata(hdev);
934 struct urb *urb;
935 unsigned char *buf;
936 unsigned int pipe;
937 int err, size = HCI_MAX_FRAME_SIZE;
938
939 BT_DBG("%s", hdev->name);
940
941 if (!data->diag_rx_ep)
942 return -ENODEV;
943
944 urb = usb_alloc_urb(0, mem_flags);
945 if (!urb)
946 return -ENOMEM;
947
948 buf = kmalloc(size, mem_flags);
949 if (!buf) {
950 usb_free_urb(urb);
951 return -ENOMEM;
952 }
953
954 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress);
955
956 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
957 btusb_diag_complete, hdev);
958
959 urb->transfer_flags |= URB_FREE_BUFFER;
960
961 usb_mark_last_busy(data->udev);
962 usb_anchor_urb(urb, &data->diag_anchor);
963
964 err = usb_submit_urb(urb, mem_flags);
965 if (err < 0) {
966 if (err != -EPERM && err != -ENODEV)
967 BT_ERR("%s urb %p submission failed (%d)",
968 hdev->name, urb, -err);
969 usb_unanchor_urb(urb);
970 }
971
972 usb_free_urb(urb);
973
974 return err;
975}
976
5e23b923 977static void btusb_tx_complete(struct urb *urb)
7bee549e
ON		 978{
979 struct sk_buff *skb = urb->context;
89e7533d 980 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
155961e8 981 struct btusb_data *data = hci_get_drvdata(hdev);
7bee549e 982
89e7533d
MH		 983 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
984 urb->actual_length);
7bee549e
ON		 985
986 if (!test_bit(HCI_RUNNING, &hdev->flags))
987 goto done;
988
989 if (!urb->status)
990 hdev->stat.byte_tx += urb->transfer_buffer_length;
991 else
992 hdev->stat.err_tx++;
993
994done:
995 spin_lock(&data->txlock);
996 data->tx_in_flight--;
997 spin_unlock(&data->txlock);
998
999 kfree(urb->setup_packet);
1000
1001 kfree_skb(skb);
1002}
1003
1004static void btusb_isoc_tx_complete(struct urb *urb)
5e23b923
MH		 1005{
1006 struct sk_buff *skb = urb->context;
89e7533d 1007 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
5e23b923 1008
89e7533d
MH		 1009 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1010 urb->actual_length);
5e23b923
MH		 1011
1012 if (!test_bit(HCI_RUNNING, &hdev->flags))
1013 goto done;
1014
1015 if (!urb->status)
1016 hdev->stat.byte_tx += urb->transfer_buffer_length;
1017 else
1018 hdev->stat.err_tx++;
1019
1020done:
1021 kfree(urb->setup_packet);
1022
1023 kfree_skb(skb);
1024}
1025
1026static int btusb_open(struct hci_dev *hdev)
1027{
155961e8 1028 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 1029 int err;
1030
1031 BT_DBG("%s", hdev->name);
1032
ace31982
KBYT		 1033 /* Patching USB firmware files prior to starting any URBs of HCI path
1034 * It is more safe to use USB bulk channel for downloading USB patch
1035 */
1036 if (data->setup_on_usb) {
1037 err = data->setup_on_usb(hdev);
eb50042f 1038 if (err < 0)
ace31982
KBYT		 1039 return err;
1040 }
1041
7bee549e
ON		 1042 err = usb_autopm_get_interface(data->intf);
1043 if (err < 0)
1044 return err;
1045
1046 data->intf->needs_remote_wakeup = 1;
1047
5e23b923 1048 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
7bee549e 1049 goto done;
5e23b923 1050
2eda66f4 1051 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
43c2e57f
MH		 1052 if (err < 0)
1053 goto failed;
1054
1055 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
5e23b923 1056 if (err < 0) {
43c2e57f
MH		 1057 usb_kill_anchored_urbs(&data->intr_anchor);
1058 goto failed;
5e23b923
MH		 1059 }
1060
43c2e57f
MH		 1061 set_bit(BTUSB_BULK_RUNNING, &data->flags);
1062 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1063
9d08f504
MH		 1064 if (data->diag) {
1065 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL))
1066 set_bit(BTUSB_DIAG_RUNNING, &data->flags);
1067 }
1068
7bee549e
ON		 1069done:
1070 usb_autopm_put_interface(data->intf);
43c2e57f
MH		 1071 return 0;
1072
1073failed:
1074 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
7bee549e 1075 usb_autopm_put_interface(data->intf);
5e23b923
MH		 1076 return err;
1077}
1078
7bee549e
ON		 1079static void btusb_stop_traffic(struct btusb_data *data)
1080{
1081 usb_kill_anchored_urbs(&data->intr_anchor);
1082 usb_kill_anchored_urbs(&data->bulk_anchor);
1083 usb_kill_anchored_urbs(&data->isoc_anchor);
9d08f504 1084 usb_kill_anchored_urbs(&data->diag_anchor);
7bee549e
ON		 1085}
1086
5e23b923
MH		 1087static int btusb_close(struct hci_dev *hdev)
1088{
155961e8 1089 struct btusb_data *data = hci_get_drvdata(hdev);
7bee549e 1090 int err;
5e23b923
MH		 1091
1092 BT_DBG("%s", hdev->name);
1093
e8c3c3d2 1094 cancel_work_sync(&data->work);
404291ac 1095 cancel_work_sync(&data->waker);
e8c3c3d2 1096
9bfa35fe 1097 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
5e23b923 1098 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
5e23b923 1099 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
9d08f504 1100 clear_bit(BTUSB_DIAG_RUNNING, &data->flags);
7bee549e
ON		 1101
1102 btusb_stop_traffic(data);
803b5836
MH		 1103 btusb_free_frags(data);
1104
7bee549e
ON		 1105 err = usb_autopm_get_interface(data->intf);
1106 if (err < 0)
7b8e2c1d 1107 goto failed;
7bee549e
ON		 1108
1109 data->intf->needs_remote_wakeup = 0;
1110 usb_autopm_put_interface(data->intf);
5e23b923 1111
7b8e2c1d
ON		 1112failed:
1113 usb_scuttle_anchored_urbs(&data->deferred);
5e23b923
MH		 1114 return 0;
1115}
1116
1117static int btusb_flush(struct hci_dev *hdev)
1118{
155961e8 1119 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 1120
1121 BT_DBG("%s", hdev->name);
1122
1123 usb_kill_anchored_urbs(&data->tx_anchor);
803b5836 1124 btusb_free_frags(data);
5e23b923
MH		 1125
1126 return 0;
1127}
1128
047b2ec8 1129static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
5e23b923 1130{
155961e8 1131 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 1132 struct usb_ctrlrequest *dr;
1133 struct urb *urb;
1134 unsigned int pipe;
5e23b923 1135
047b2ec8
MH		 1136 urb = usb_alloc_urb(0, GFP_KERNEL);
1137 if (!urb)
1138 return ERR_PTR(-ENOMEM);
5e23b923 1139
047b2ec8
MH		 1140 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
1141 if (!dr) {
1142 usb_free_urb(urb);
1143 return ERR_PTR(-ENOMEM);
1144 }
5e23b923 1145
047b2ec8 1146 dr->bRequestType = data->cmdreq_type;
893ba544 1147 dr->bRequest = data->cmdreq;
047b2ec8
MH		 1148 dr->wIndex = 0;
1149 dr->wValue = 0;
1150 dr->wLength = __cpu_to_le16(skb->len);
7bd8f09f 1151
047b2ec8 1152 pipe = usb_sndctrlpipe(data->udev, 0x00);
5e23b923 1153
89e7533d 1154 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
047b2ec8 1155 skb->data, skb->len, btusb_tx_complete, skb);
5e23b923 1156
89e7533d 1157 skb->dev = (void *)hdev;
5e23b923 1158
047b2ec8
MH		 1159 return urb;
1160}
5e23b923 1161
047b2ec8
MH		 1162static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
1163{
1164 struct btusb_data *data = hci_get_drvdata(hdev);
1165 struct urb *urb;
1166 unsigned int pipe;
5e23b923 1167
047b2ec8
MH		 1168 if (!data->bulk_tx_ep)
1169 return ERR_PTR(-ENODEV);
9bfa35fe 1170
047b2ec8
MH		 1171 urb = usb_alloc_urb(0, GFP_KERNEL);
1172 if (!urb)
1173 return ERR_PTR(-ENOMEM);
5e23b923 1174
047b2ec8 1175 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
5e23b923 1176
047b2ec8
MH		 1177 usb_fill_bulk_urb(urb, data->udev, pipe,
1178 skb->data, skb->len, btusb_tx_complete, skb);
5e23b923 1179
89e7533d 1180 skb->dev = (void *)hdev;
5e23b923 1181
047b2ec8
MH		 1182 return urb;
1183}
9bfa35fe 1184
047b2ec8
MH		 1185static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
1186{
1187 struct btusb_data *data = hci_get_drvdata(hdev);
1188 struct urb *urb;
1189 unsigned int pipe;
9bfa35fe 1190
047b2ec8
MH		 1191 if (!data->isoc_tx_ep)
1192 return ERR_PTR(-ENODEV);
9bfa35fe 1193
047b2ec8
MH		 1194 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
1195 if (!urb)
1196 return ERR_PTR(-ENOMEM);
9bfa35fe 1197
047b2ec8 1198 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
9bfa35fe 1199
047b2ec8
MH		 1200 usb_fill_int_urb(urb, data->udev, pipe,
1201 skb->data, skb->len, btusb_isoc_tx_complete,
1202 skb, data->isoc_tx_ep->bInterval);
9bfa35fe 1203
047b2ec8 1204 urb->transfer_flags = URB_ISO_ASAP;
5e23b923 1205
047b2ec8
MH		 1206 __fill_isoc_descriptor(urb, skb->len,
1207 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
5e23b923 1208
89e7533d 1209 skb->dev = (void *)hdev;
047b2ec8
MH		 1210
1211 return urb;
1212}
1213
1214static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
1215{
1216 struct btusb_data *data = hci_get_drvdata(hdev);
1217 int err;
7bee549e 1218
5e23b923
MH		 1219 usb_anchor_urb(urb, &data->tx_anchor);
1220
e9753eff 1221 err = usb_submit_urb(urb, GFP_KERNEL);
5e23b923 1222 if (err < 0) {
5a9b80e2
PB		 1223 if (err != -EPERM && err != -ENODEV)
1224 BT_ERR("%s urb %p submission failed (%d)",
89e7533d 1225 hdev->name, urb, -err);
5e23b923
MH		 1226 kfree(urb->setup_packet);
1227 usb_unanchor_urb(urb);
7bee549e
ON		 1228 } else {
1229 usb_mark_last_busy(data->udev);
5e23b923
MH		 1230 }
1231
54a8a79c 1232 usb_free_urb(urb);
5e23b923
MH		 1233 return err;
1234}
1235
047b2ec8
MH		 1236static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
1237{
1238 struct btusb_data *data = hci_get_drvdata(hdev);
1239 unsigned long flags;
1240 bool suspending;
1241
1242 spin_lock_irqsave(&data->txlock, flags);
1243 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
1244 if (!suspending)
1245 data->tx_in_flight++;
1246 spin_unlock_irqrestore(&data->txlock, flags);
1247
1248 if (!suspending)
1249 return submit_tx_urb(hdev, urb);
1250
1251 usb_anchor_urb(urb, &data->deferred);
1252 schedule_work(&data->waker);
1253
1254 usb_free_urb(urb);
1255 return 0;
1256}
1257
1258static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
1259{
1260 struct urb *urb;
1261
1262 BT_DBG("%s", hdev->name);
1263
618e8bc2 1264 switch (hci_skb_pkt_type(skb)) {
047b2ec8
MH		 1265 case HCI_COMMAND_PKT:
1266 urb = alloc_ctrl_urb(hdev, skb);
1267 if (IS_ERR(urb))
1268 return PTR_ERR(urb);
1269
1270 hdev->stat.cmd_tx++;
1271 return submit_or_queue_tx_urb(hdev, urb);
1272
1273 case HCI_ACLDATA_PKT:
1274 urb = alloc_bulk_urb(hdev, skb);
1275 if (IS_ERR(urb))
1276 return PTR_ERR(urb);
1277
1278 hdev->stat.acl_tx++;
1279 return submit_or_queue_tx_urb(hdev, urb);
1280
1281 case HCI_SCODATA_PKT:
1282 if (hci_conn_num(hdev, SCO_LINK) < 1)
1283 return -ENODEV;
1284
1285 urb = alloc_isoc_urb(hdev, skb);
1286 if (IS_ERR(urb))
1287 return PTR_ERR(urb);
1288
1289 hdev->stat.sco_tx++;
1290 return submit_tx_urb(hdev, urb);
1291 }
1292
1293 return -EILSEQ;
1294}
1295
5e23b923
MH		 1296static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
1297{
155961e8 1298 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 1299
1300 BT_DBG("%s evt %d", hdev->name, evt);
1301
014f7bc7
MH		 1302 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
1303 data->sco_num = hci_conn_num(hdev, SCO_LINK);
43c2e57f 1304 schedule_work(&data->work);
a780efa8 1305 }
5e23b923
MH		 1306}
1307
42b16b3f 1308static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
9bfa35fe 1309{
155961e8 1310 struct btusb_data *data = hci_get_drvdata(hdev);
9bfa35fe
MH		 1311 struct usb_interface *intf = data->isoc;
1312 struct usb_endpoint_descriptor *ep_desc;
1313 int i, err;
1314
1315 if (!data->isoc)
1316 return -ENODEV;
1317
1318 err = usb_set_interface(data->udev, 1, altsetting);
1319 if (err < 0) {
1320 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
1321 return err;
1322 }
1323
1324 data->isoc_altsetting = altsetting;
1325
1326 data->isoc_tx_ep = NULL;
1327 data->isoc_rx_ep = NULL;
1328
1329 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1330 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1331
1332 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
1333 data->isoc_tx_ep = ep_desc;
1334 continue;
1335 }
1336
1337 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
1338 data->isoc_rx_ep = ep_desc;
1339 continue;
1340 }
1341 }
1342
1343 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
1344 BT_ERR("%s invalid SCO descriptors", hdev->name);
1345 return -ENODEV;
1346 }
1347
1348 return 0;
1349}
1350
5e23b923
MH		 1351static void btusb_work(struct work_struct *work)
1352{
1353 struct btusb_data *data = container_of(work, struct btusb_data, work);
1354 struct hci_dev *hdev = data->hdev;
f4001d28 1355 int new_alts;
7bee549e 1356 int err;
5e23b923 1357
014f7bc7 1358 if (data->sco_num > 0) {
08b8b6c4 1359 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
8efdd0cd 1360 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
7bee549e
ON		 1361 if (err < 0) {
1362 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1363 usb_kill_anchored_urbs(&data->isoc_anchor);
1364 return;
1365 }
1366
08b8b6c4 1367 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
7bee549e 1368 }
f4001d28
MA		 1369
1370 if (hdev->voice_setting & 0x0020) {
1371 static const int alts[3] = { 2, 4, 5 };
89e7533d 1372
014f7bc7 1373 new_alts = alts[data->sco_num - 1];
f4001d28 1374 } else {
014f7bc7 1375 new_alts = data->sco_num;
f4001d28
MA		 1376 }
1377
1378 if (data->isoc_altsetting != new_alts) {
f6fc86f2
KP		 1379 unsigned long flags;
1380
9bfa35fe
MH		 1381 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1382 usb_kill_anchored_urbs(&data->isoc_anchor);
1383
8f9d02f4
KP		 1384 /* When isochronous alternate setting needs to be
1385 * changed, because SCO connection has been added
1386 * or removed, a packet fragment may be left in the
1387 * reassembling state. This could lead to wrongly
1388 * assembled fragments.
1389 *
1390 * Clear outstanding fragment when selecting a new
1391 * alternate setting.
1392 */
f6fc86f2 1393 spin_lock_irqsave(&data->rxlock, flags);
8f9d02f4
KP		 1394 kfree_skb(data->sco_skb);
1395 data->sco_skb = NULL;
f6fc86f2 1396 spin_unlock_irqrestore(&data->rxlock, flags);
8f9d02f4 1397
f4001d28 1398 if (__set_isoc_interface(hdev, new_alts) < 0)
9bfa35fe
MH		 1399 return;
1400 }
1401
1402 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2eda66f4 1403 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
9bfa35fe
MH		 1404 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1405 else
2eda66f4 1406 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
9bfa35fe
MH		 1407 }
1408 } else {
1409 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1410 usb_kill_anchored_urbs(&data->isoc_anchor);
1411
1412 __set_isoc_interface(hdev, 0);
08b8b6c4 1413 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
8efdd0cd 1414 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
5e23b923
MH		 1415 }
1416}
1417
7bee549e
ON		 1418static void btusb_waker(struct work_struct *work)
1419{
1420 struct btusb_data *data = container_of(work, struct btusb_data, waker);
1421 int err;
1422
1423 err = usb_autopm_get_interface(data->intf);
1424 if (err < 0)
1425 return;
1426
1427 usb_autopm_put_interface(data->intf);
1428}
1429
9f8f962c
MH		 1430static int btusb_setup_bcm92035(struct hci_dev *hdev)
1431{
1432 struct sk_buff *skb;
1433 u8 val = 0x00;
1434
1435 BT_DBG("%s", hdev->name);
1436
1437 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
1438 if (IS_ERR(skb))
1439 BT_ERR("BCM92035 command failed (%ld)", -PTR_ERR(skb));
1440 else
1441 kfree_skb(skb);
1442
1443 return 0;
1444}
1445
81cac64b
MH		 1446static int btusb_setup_csr(struct hci_dev *hdev)
1447{
1448 struct hci_rp_read_local_version *rp;
1449 struct sk_buff *skb;
81cac64b
MH		 1450
1451 BT_DBG("%s", hdev->name);
1452
7cd84d72
MH		 1453 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1454 HCI_INIT_TIMEOUT);
1455 if (IS_ERR(skb)) {
1456 int err = PTR_ERR(skb);
1457 BT_ERR("%s: CSR: Local version failed (%d)", hdev->name, err);
1458 return err;
1459 }
1460
1461 if (skb->len != sizeof(struct hci_rp_read_local_version)) {
1462 BT_ERR("%s: CSR: Local version length mismatch", hdev->name);
1463 kfree_skb(skb);
1464 return -EIO;
1465 }
81cac64b 1466
89e7533d 1467 rp = (struct hci_rp_read_local_version *)skb->data;
81cac64b 1468
6cafcd95
JH		 1469 /* Detect controllers which aren't real CSR ones. */
1470 if (le16_to_cpu(rp->manufacturer) != 10 ||
1471 le16_to_cpu(rp->lmp_subver) == 0x0c5c) {
9641d343
MH		 1472 /* Clear the reset quirk since this is not an actual
1473 * early Bluetooth 1.1 device from CSR.
1474 */
1475 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
81cac64b 1476
9641d343
MH		 1477 /* These fake CSR controllers have all a broken
1478 * stored link key handling and so just disable it.
1479 */
1480 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
1481 }
81cac64b
MH		 1482
1483 kfree_skb(skb);
1484
9641d343 1485 return 0;
81cac64b
MH		 1486}
1487
dffd30ee 1488static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev,
89e7533d 1489 struct intel_version *ver)
dffd30ee
THJA		 1490{
1491 const struct firmware *fw;
1492 char fwname[64];
1493 int ret;
1494
1495 snprintf(fwname, sizeof(fwname),
1496 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq",
1497 ver->hw_platform, ver->hw_variant, ver->hw_revision,
1498 ver->fw_variant, ver->fw_revision, ver->fw_build_num,
1499 ver->fw_build_ww, ver->fw_build_yy);
1500
1501 ret = request_firmware(&fw, fwname, &hdev->dev);
1502 if (ret < 0) {
1503 if (ret == -EINVAL) {
1504 BT_ERR("%s Intel firmware file request failed (%d)",
1505 hdev->name, ret);
1506 return NULL;
1507 }
1508
1509 BT_ERR("%s failed to open Intel firmware file: %s(%d)",
1510 hdev->name, fwname, ret);
1511
1512 /* If the correct firmware patch file is not found, use the
1513 * default firmware patch file instead
1514 */
1515 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq",
1516 ver->hw_platform, ver->hw_variant);
1517 if (request_firmware(&fw, fwname, &hdev->dev) < 0) {
1518 BT_ERR("%s failed to open default Intel fw file: %s",
1519 hdev->name, fwname);
1520 return NULL;
1521 }
1522 }
1523
1524 BT_INFO("%s: Intel Bluetooth firmware file: %s", hdev->name, fwname);
1525
1526 return fw;
1527}
1528
1529static int btusb_setup_intel_patching(struct hci_dev *hdev,
1530 const struct firmware *fw,
1531 const u8 **fw_ptr, int *disable_patch)
1532{
1533 struct sk_buff *skb;
1534 struct hci_command_hdr *cmd;
1535 const u8 *cmd_param;
1536 struct hci_event_hdr *evt = NULL;
1537 const u8 *evt_param = NULL;
1538 int remain = fw->size - (*fw_ptr - fw->data);
1539
1540 /* The first byte indicates the types of the patch command or event.
1541 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes
1542 * in the current firmware buffer doesn't start with 0x01 or
1543 * the size of remain buffer is smaller than HCI command header,
1544 * the firmware file is corrupted and it should stop the patching
1545 * process.
1546 */
1547 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) {
1548 BT_ERR("%s Intel fw corrupted: invalid cmd read", hdev->name);
1549 return -EINVAL;
1550 }
1551 (*fw_ptr)++;
1552 remain--;
1553
1554 cmd = (struct hci_command_hdr *)(*fw_ptr);
1555 *fw_ptr += sizeof(*cmd);
1556 remain -= sizeof(*cmd);
1557
1558 /* Ensure that the remain firmware data is long enough than the length
1559 * of command parameter. If not, the firmware file is corrupted.
1560 */
1561 if (remain < cmd->plen) {
1562 BT_ERR("%s Intel fw corrupted: invalid cmd len", hdev->name);
1563 return -EFAULT;
1564 }
1565
1566 /* If there is a command that loads a patch in the firmware
1567 * file, then enable the patch upon success, otherwise just
1568 * disable the manufacturer mode, for example patch activation
1569 * is not required when the default firmware patch file is used
1570 * because there are no patch data to load.
1571 */
1572 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e)
1573 *disable_patch = 0;
1574
1575 cmd_param = *fw_ptr;
1576 *fw_ptr += cmd->plen;
1577 remain -= cmd->plen;
1578
1579 /* This reads the expected events when the above command is sent to the
1580 * device. Some vendor commands expects more than one events, for
1581 * example command status event followed by vendor specific event.
1582 * For this case, it only keeps the last expected event. so the command
1583 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of
1584 * last expected event.
1585 */
1586 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) {
1587 (*fw_ptr)++;
1588 remain--;
1589
1590 evt = (struct hci_event_hdr *)(*fw_ptr);
1591 *fw_ptr += sizeof(*evt);
1592 remain -= sizeof(*evt);
1593
1594 if (remain < evt->plen) {
1595 BT_ERR("%s Intel fw corrupted: invalid evt len",
1596 hdev->name);
1597 return -EFAULT;
1598 }
1599
1600 evt_param = *fw_ptr;
1601 *fw_ptr += evt->plen;
1602 remain -= evt->plen;
1603 }
1604
1605 /* Every HCI commands in the firmware file has its correspond event.
1606 * If event is not found or remain is smaller than zero, the firmware
1607 * file is corrupted.
1608 */
1609 if (!evt || !evt_param || remain < 0) {
1610 BT_ERR("%s Intel fw corrupted: invalid evt read", hdev->name);
1611 return -EFAULT;
1612 }
1613
1614 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen,
1615 cmd_param, evt->evt, HCI_INIT_TIMEOUT);
1616 if (IS_ERR(skb)) {
1617 BT_ERR("%s sending Intel patch command (0x%4.4x) failed (%ld)",
1618 hdev->name, cmd->opcode, PTR_ERR(skb));
d9c78e97 1619 return PTR_ERR(skb);
dffd30ee
THJA		 1620 }
1621
1622 /* It ensures that the returned event matches the event data read from
1623 * the firmware file. At fist, it checks the length and then
1624 * the contents of the event.
1625 */
1626 if (skb->len != evt->plen) {
1627 BT_ERR("%s mismatch event length (opcode 0x%4.4x)", hdev->name,
1628 le16_to_cpu(cmd->opcode));
1629 kfree_skb(skb);
1630 return -EFAULT;
1631 }
1632
1633 if (memcmp(skb->data, evt_param, evt->plen)) {
1634 BT_ERR("%s mismatch event parameter (opcode 0x%4.4x)",
1635 hdev->name, le16_to_cpu(cmd->opcode));
1636 kfree_skb(skb);
1637 return -EFAULT;
1638 }
1639 kfree_skb(skb);
1640
1641 return 0;
1642}
1643
1644static int btusb_setup_intel(struct hci_dev *hdev)
1645{
1646 struct sk_buff *skb;
1647 const struct firmware *fw;
1648 const u8 *fw_ptr;
28dc4b92 1649 int disable_patch, err;
dffd30ee
THJA		 1650 struct intel_version *ver;
1651
dffd30ee
THJA		 1652 BT_DBG("%s", hdev->name);
1653
1654 /* The controller has a bug with the first HCI command sent to it
1655 * returning number of completed commands as zero. This would stall the
1656 * command processing in the Bluetooth core.
1657 *
1658 * As a workaround, send HCI Reset command first which will reset the
1659 * number of completed commands and allow normal command processing
1660 * from now on.
1661 */
1662 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1663 if (IS_ERR(skb)) {
1664 BT_ERR("%s sending initial HCI reset command failed (%ld)",
1665 hdev->name, PTR_ERR(skb));
d9c78e97 1666 return PTR_ERR(skb);
dffd30ee
THJA		 1667 }
1668 kfree_skb(skb);
1669
1670 /* Read Intel specific controller version first to allow selection of
1671 * which firmware file to load.
1672 *
1673 * The returned information are hardware variant and revision plus
1674 * firmware variant, revision and build number.
1675 */
1676 skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT);
1677 if (IS_ERR(skb)) {
1678 BT_ERR("%s reading Intel fw version command failed (%ld)",
1679 hdev->name, PTR_ERR(skb));
d9c78e97 1680 return PTR_ERR(skb);
dffd30ee
THJA		 1681 }
1682
1683 if (skb->len != sizeof(*ver)) {
1684 BT_ERR("%s Intel version event length mismatch", hdev->name);
1685 kfree_skb(skb);
1686 return -EIO;
1687 }
1688
1689 ver = (struct intel_version *)skb->data;
dffd30ee
THJA		 1690
1691 BT_INFO("%s: read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
1692 hdev->name, ver->hw_platform, ver->hw_variant,
1693 ver->hw_revision, ver->fw_variant, ver->fw_revision,
1694 ver->fw_build_num, ver->fw_build_ww, ver->fw_build_yy,
1695 ver->fw_patch_num);
1696
1697 /* fw_patch_num indicates the version of patch the device currently
1698 * have. If there is no patch data in the device, it is always 0x00.
5075edae 1699 * So, if it is other than 0x00, no need to patch the device again.
dffd30ee
THJA		 1700 */
1701 if (ver->fw_patch_num) {
1702 BT_INFO("%s: Intel device is already patched. patch num: %02x",
1703 hdev->name, ver->fw_patch_num);
1704 kfree_skb(skb);
213445b2 1705 goto complete;
dffd30ee
THJA		 1706 }
1707
1708 /* Opens the firmware patch file based on the firmware version read
1709 * from the controller. If it fails to open the matching firmware
1710 * patch file, it tries to open the default firmware patch file.
1711 * If no patch file is found, allow the device to operate without
1712 * a patch.
1713 */
1714 fw = btusb_setup_intel_get_fw(hdev, ver);
1715 if (!fw) {
1716 kfree_skb(skb);
213445b2 1717 goto complete;
dffd30ee
THJA		 1718 }
1719 fw_ptr = fw->data;
1720
ecffc804
MH		 1721 kfree_skb(skb);
1722
28dc4b92 1723 /* Enable the manufacturer mode of the controller.
dffd30ee
THJA		 1724 * Only while this mode is enabled, the driver can download the
1725 * firmware patch data and configuration parameters.
1726 */
28dc4b92
LP		 1727 err = btintel_enter_mfg(hdev);
1728 if (err) {
dffd30ee 1729 release_firmware(fw);
28dc4b92 1730 return err;
dffd30ee
THJA		 1731 }
1732
dffd30ee
THJA		 1733 disable_patch = 1;
1734
1735 /* The firmware data file consists of list of Intel specific HCI
1736 * commands and its expected events. The first byte indicates the
1737 * type of the message, either HCI command or HCI event.
1738 *
1739 * It reads the command and its expected event from the firmware file,
1740 * and send to the controller. Once __hci_cmd_sync_ev() returns,
1741 * the returned event is compared with the event read from the firmware
1742 * file and it will continue until all the messages are downloaded to
1743 * the controller.
1744 *
1745 * Once the firmware patching is completed successfully,
1746 * the manufacturer mode is disabled with reset and activating the
1747 * downloaded patch.
1748 *
1749 * If the firmware patching fails, the manufacturer mode is
1750 * disabled with reset and deactivating the patch.
1751 *
1752 * If the default patch file is used, no reset is done when disabling
1753 * the manufacturer.
1754 */
1755 while (fw->size > fw_ptr - fw->data) {
1756 int ret;
1757
1758 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr,
1759 &disable_patch);
1760 if (ret < 0)
1761 goto exit_mfg_deactivate;
1762 }
1763
1764 release_firmware(fw);
1765
1766 if (disable_patch)
1767 goto exit_mfg_disable;
1768
1769 /* Patching completed successfully and disable the manufacturer mode
1770 * with reset and activate the downloaded firmware patches.
1771 */
28dc4b92
LP		 1772 err = btintel_exit_mfg(hdev, true, true);
1773 if (err)
1774 return err;
dffd30ee
THJA		 1775
1776 BT_INFO("%s: Intel Bluetooth firmware patch completed and activated",
1777 hdev->name);
1778
213445b2 1779 goto complete;
dffd30ee
THJA		 1780
1781exit_mfg_disable:
1782 /* Disable the manufacturer mode without reset */
28dc4b92
LP		 1783 err = btintel_exit_mfg(hdev, false, false);
1784 if (err)
1785 return err;
dffd30ee
THJA		 1786
1787 BT_INFO("%s: Intel Bluetooth firmware patch completed", hdev->name);
40cb0984 1788
213445b2 1789 goto complete;
dffd30ee
THJA		 1790
1791exit_mfg_deactivate:
1792 release_firmware(fw);
1793
1794 /* Patching failed. Disable the manufacturer mode with reset and
1795 * deactivate the downloaded firmware patches.
1796 */
28dc4b92
LP		 1797 err = btintel_exit_mfg(hdev, true, false);
1798 if (err)
1799 return err;
dffd30ee
THJA		 1800
1801 BT_INFO("%s: Intel Bluetooth firmware patch completed and deactivated",
1802 hdev->name);
1803
213445b2
MH		 1804complete:
1805 /* Set the event mask for Intel specific vendor events. This enables
1806 * a few extra events that are useful during general operation.
1807 */
1808 btintel_set_event_mask_mfg(hdev, false);
1809
4185a0f5 1810 btintel_check_bdaddr(hdev);
dffd30ee
THJA		 1811 return 0;
1812}
1813
cda0dd78
MH		 1814static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
1815{
1816 struct sk_buff *skb;
1817 struct hci_event_hdr *hdr;
1818 struct hci_ev_cmd_complete *evt;
1819
1820 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_ATOMIC);
1821 if (!skb)
1822 return -ENOMEM;
1823
1824 hdr = (struct hci_event_hdr *)skb_put(skb, sizeof(*hdr));
1825 hdr->evt = HCI_EV_CMD_COMPLETE;
1826 hdr->plen = sizeof(*evt) + 1;
1827
1828 evt = (struct hci_ev_cmd_complete *)skb_put(skb, sizeof(*evt));
1829 evt->ncmd = 0x01;
1830 evt->opcode = cpu_to_le16(opcode);
1831
1832 *skb_put(skb, 1) = 0x00;
1833
618e8bc2 1834 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
cda0dd78
MH		 1835
1836 return hci_recv_frame(hdev, skb);
1837}
1838
1839static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
1840 int count)
1841{
1842 /* When the device is in bootloader mode, then it can send
1843 * events via the bulk endpoint. These events are treated the
1844 * same way as the ones received from the interrupt endpoint.
1845 */
1846 if (test_bit(BTUSB_BOOTLOADER, &data->flags))
1847 return btusb_recv_intr(data, buffer, count);
1848
1849 return btusb_recv_bulk(data, buffer, count);
1850}
1851
ccd6da2a
MH		 1852static void btusb_intel_bootup(struct btusb_data *data, const void *ptr,
1853 unsigned int len)
1854{
1855 const struct intel_bootup *evt = ptr;
1856
1857 if (len != sizeof(*evt))
1858 return;
1859
1860 if (test_and_clear_bit(BTUSB_BOOTING, &data->flags)) {
1861 smp_mb__after_atomic();
1862 wake_up_bit(&data->flags, BTUSB_BOOTING);
1863 }
1864}
1865
1866static void btusb_intel_secure_send_result(struct btusb_data *data,
1867 const void *ptr, unsigned int len)
1868{
1869 const struct intel_secure_send_result *evt = ptr;
1870
1871 if (len != sizeof(*evt))
1872 return;
1873
1874 if (evt->result)
1875 set_bit(BTUSB_FIRMWARE_FAILED, &data->flags);
1876
1877 if (test_and_clear_bit(BTUSB_DOWNLOADING, &data->flags) &&
1878 test_bit(BTUSB_FIRMWARE_LOADED, &data->flags)) {
1879 smp_mb__after_atomic();
1880 wake_up_bit(&data->flags, BTUSB_DOWNLOADING);
1881 }
1882}
1883
cda0dd78
MH		 1884static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb)
1885{
1886 struct btusb_data *data = hci_get_drvdata(hdev);
1887
1888 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
1889 struct hci_event_hdr *hdr = (void *)skb->data;
1890
ccd6da2a
MH		 1891 if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff &&
1892 hdr->plen > 0) {
1893 const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1;
1894 unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1;
1895
1896 switch (skb->data[2]) {
1897 case 0x02:
1898 /* When switching to the operational firmware
1899 * the device sends a vendor specific event
1900 * indicating that the bootup completed.
1901 */
1902 btusb_intel_bootup(data, ptr, len);
1903 break;
1904 case 0x06:
1905 /* When the firmware loading completes the
1906 * device sends out a vendor specific event
1907 * indicating the result of the firmware
1908 * loading.
1909 */
1910 btusb_intel_secure_send_result(data, ptr, len);
1911 break;
fad70972 1912 }
cda0dd78
MH		 1913 }
1914 }
1915
1916 return hci_recv_frame(hdev, skb);
1917}
1918
1919static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
1920{
1921 struct btusb_data *data = hci_get_drvdata(hdev);
1922 struct urb *urb;
1923
1924 BT_DBG("%s", hdev->name);
1925
618e8bc2 1926 switch (hci_skb_pkt_type(skb)) {
cda0dd78
MH		 1927 case HCI_COMMAND_PKT:
1928 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
1929 struct hci_command_hdr *cmd = (void *)skb->data;
1930 __u16 opcode = le16_to_cpu(cmd->opcode);
1931
1932 /* When in bootloader mode and the command 0xfc09
1933 * is received, it needs to be send down the
1934 * bulk endpoint. So allocate a bulk URB instead.
1935 */
1936 if (opcode == 0xfc09)
1937 urb = alloc_bulk_urb(hdev, skb);
1938 else
1939 urb = alloc_ctrl_urb(hdev, skb);
1940
1941 /* When the 0xfc01 command is issued to boot into
1942 * the operational firmware, it will actually not
1943 * send a command complete event. To keep the flow
1944 * control working inject that event here.
1945 */
1946 if (opcode == 0xfc01)
1947 inject_cmd_complete(hdev, opcode);
1948 } else {
1949 urb = alloc_ctrl_urb(hdev, skb);
1950 }
1951 if (IS_ERR(urb))
1952 return PTR_ERR(urb);
1953
1954 hdev->stat.cmd_tx++;
1955 return submit_or_queue_tx_urb(hdev, urb);
1956
1957 case HCI_ACLDATA_PKT:
1958 urb = alloc_bulk_urb(hdev, skb);
1959 if (IS_ERR(urb))
1960 return PTR_ERR(urb);
1961
1962 hdev->stat.acl_tx++;
1963 return submit_or_queue_tx_urb(hdev, urb);
1964
1965 case HCI_SCODATA_PKT:
1966 if (hci_conn_num(hdev, SCO_LINK) < 1)
1967 return -ENODEV;
1968
1969 urb = alloc_isoc_urb(hdev, skb);
1970 if (IS_ERR(urb))
1971 return PTR_ERR(urb);
1972
1973 hdev->stat.sco_tx++;
1974 return submit_tx_urb(hdev, urb);
1975 }
1976
1977 return -EILSEQ;
1978}
1979
cda0dd78
MH		 1980static int btusb_setup_intel_new(struct hci_dev *hdev)
1981{
1982 static const u8 reset_param[] = { 0x00, 0x01, 0x00, 0x01,
1983 0x00, 0x08, 0x04, 0x00 };
1984 struct btusb_data *data = hci_get_drvdata(hdev);
1985 struct sk_buff *skb;
1986 struct intel_version *ver;
1987 struct intel_boot_params *params;
1988 const struct firmware *fw;
1989 const u8 *fw_ptr;
e66890a9 1990 u32 frag_len;
cda0dd78
MH		 1991 char fwname[64];
1992 ktime_t calltime, delta, rettime;
1993 unsigned long long duration;
1994 int err;
1995
1996 BT_DBG("%s", hdev->name);
1997
1998 calltime = ktime_get();
1999
2000 /* Read the Intel version information to determine if the device
2001 * is in bootloader mode or if it already has operational firmware
2002 * loaded.
2003 */
2004 skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT);
2005 if (IS_ERR(skb)) {
2006 BT_ERR("%s: Reading Intel version information failed (%ld)",
2007 hdev->name, PTR_ERR(skb));
2008 return PTR_ERR(skb);
2009 }
2010
2011 if (skb->len != sizeof(*ver)) {
2012 BT_ERR("%s: Intel version event size mismatch", hdev->name);
2013 kfree_skb(skb);
2014 return -EILSEQ;
2015 }
2016
2017 ver = (struct intel_version *)skb->data;
cda0dd78
MH		 2018
2019 /* The hardware platform number has a fixed value of 0x37 and
2020 * for now only accept this single value.
2021 */
2022 if (ver->hw_platform != 0x37) {
2023 BT_ERR("%s: Unsupported Intel hardware platform (%u)",
2024 hdev->name, ver->hw_platform);
2025 kfree_skb(skb);
2026 return -EINVAL;
2027 }
2028
2029 /* At the moment only the hardware variant iBT 3.0 (LnP/SfP) is
2030 * supported by this firmware loading method. This check has been
2031 * put in place to ensure correct forward compatibility options
2032 * when newer hardware variants come along.
2033 */
2034 if (ver->hw_variant != 0x0b) {
2035 BT_ERR("%s: Unsupported Intel hardware variant (%u)",
2036 hdev->name, ver->hw_variant);
2037 kfree_skb(skb);
2038 return -EINVAL;
2039 }
2040
7feb99e1 2041 btintel_version_info(hdev, ver);
cda0dd78
MH		 2042
2043 /* The firmware variant determines if the device is in bootloader
2044 * mode or is running operational firmware. The value 0x06 identifies
2045 * the bootloader and the value 0x23 identifies the operational
2046 * firmware.
2047 *
2048 * When the operational firmware is already present, then only
2049 * the check for valid Bluetooth device address is needed. This
2050 * determines if the device will be added as configured or
2051 * unconfigured controller.
2052 *
2053 * It is not possible to use the Secure Boot Parameters in this
2054 * case since that command is only available in bootloader mode.
2055 */
2056 if (ver->fw_variant == 0x23) {
2057 kfree_skb(skb);
2058 clear_bit(BTUSB_BOOTLOADER, &data->flags);
4185a0f5 2059 btintel_check_bdaddr(hdev);
cda0dd78
MH		 2060 return 0;
2061 }
2062
2063 /* If the device is not in bootloader mode, then the only possible
2064 * choice is to return an error and abort the device initialization.
2065 */
2066 if (ver->fw_variant != 0x06) {
2067 BT_ERR("%s: Unsupported Intel firmware variant (%u)",
2068 hdev->name, ver->fw_variant);
2069 kfree_skb(skb);
2070 return -ENODEV;
2071 }
2072
2073 kfree_skb(skb);
2074
2075 /* Read the secure boot parameters to identify the operating
2076 * details of the bootloader.
2077 */
2078 skb = __hci_cmd_sync(hdev, 0xfc0d, 0, NULL, HCI_INIT_TIMEOUT);
2079 if (IS_ERR(skb)) {
2080 BT_ERR("%s: Reading Intel boot parameters failed (%ld)",
2081 hdev->name, PTR_ERR(skb));
2082 return PTR_ERR(skb);
2083 }
2084
2085 if (skb->len != sizeof(*params)) {
2086 BT_ERR("%s: Intel boot parameters size mismatch", hdev->name);
2087 kfree_skb(skb);
2088 return -EILSEQ;
2089 }
2090
2091 params = (struct intel_boot_params *)skb->data;
cda0dd78
MH		 2092
2093 BT_INFO("%s: Device revision is %u", hdev->name,
2094 le16_to_cpu(params->dev_revid));
2095
2096 BT_INFO("%s: Secure boot is %s", hdev->name,
2097 params->secure_boot ? "enabled" : "disabled");
2098
2220994e
MH		 2099 BT_INFO("%s: OTP lock is %s", hdev->name,
2100 params->otp_lock ? "enabled" : "disabled");
2101
2102 BT_INFO("%s: API lock is %s", hdev->name,
2103 params->api_lock ? "enabled" : "disabled");
2104
2105 BT_INFO("%s: Debug lock is %s", hdev->name,
2106 params->debug_lock ? "enabled" : "disabled");
2107
cda0dd78
MH		 2108 BT_INFO("%s: Minimum firmware build %u week %u %u", hdev->name,
2109 params->min_fw_build_nn, params->min_fw_build_cw,
2110 2000 + params->min_fw_build_yy);
2111
2112 /* It is required that every single firmware fragment is acknowledged
2113 * with a command complete event. If the boot parameters indicate
2114 * that this bootloader does not send them, then abort the setup.
2115 */
2116 if (params->limited_cce != 0x00) {
2117 BT_ERR("%s: Unsupported Intel firmware loading method (%u)",
2118 hdev->name, params->limited_cce);
2119 kfree_skb(skb);
2120 return -EINVAL;
2121 }
2122
2123 /* If the OTP has no valid Bluetooth device address, then there will
2124 * also be no valid address for the operational firmware.
2125 */
2126 if (!bacmp(&params->otp_bdaddr, BDADDR_ANY)) {
2127 BT_INFO("%s: No device address configured", hdev->name);
2128 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
2129 }
2130
2131 /* With this Intel bootloader only the hardware variant and device
2132 * revision information are used to select the right firmware.
2133 *
2134 * Currently this bootloader support is limited to hardware variant
2135 * iBT 3.0 (LnP/SfP) which is identified by the value 11 (0x0b).
2136 */
2137 snprintf(fwname, sizeof(fwname), "intel/ibt-11-%u.sfi",
2138 le16_to_cpu(params->dev_revid));
2139
2140 err = request_firmware(&fw, fwname, &hdev->dev);
2141 if (err < 0) {
2142 BT_ERR("%s: Failed to load Intel firmware file (%d)",
2143 hdev->name, err);
2144 kfree_skb(skb);
2145 return err;
2146 }
2147
2148 BT_INFO("%s: Found device firmware: %s", hdev->name, fwname);
2149
52cc9168
THJA		 2150 /* Save the DDC file name for later use to apply once the firmware
2151 * downloading is done.
2152 */
2153 snprintf(fwname, sizeof(fwname), "intel/ibt-11-%u.ddc",
2154 le16_to_cpu(params->dev_revid));
2155
cda0dd78
MH		 2156 kfree_skb(skb);
2157
2158 if (fw->size < 644) {
2159 BT_ERR("%s: Invalid size of firmware file (%zu)",
2160 hdev->name, fw->size);
2161 err = -EBADF;
2162 goto done;
2163 }
2164
2165 set_bit(BTUSB_DOWNLOADING, &data->flags);
2166
2167 /* Start the firmware download transaction with the Init fragment
2168 * represented by the 128 bytes of CSS header.
2169 */
09df123d 2170 err = btintel_secure_send(hdev, 0x00, 128, fw->data);
cda0dd78
MH		 2171 if (err < 0) {
2172 BT_ERR("%s: Failed to send firmware header (%d)",
2173 hdev->name, err);
2174 goto done;
2175 }
2176
2177 /* Send the 256 bytes of public key information from the firmware
2178 * as the PKey fragment.
2179 */
09df123d 2180 err = btintel_secure_send(hdev, 0x03, 256, fw->data + 128);
cda0dd78
MH		 2181 if (err < 0) {
2182 BT_ERR("%s: Failed to send firmware public key (%d)",
2183 hdev->name, err);
2184 goto done;
2185 }
2186
2187 /* Send the 256 bytes of signature information from the firmware
2188 * as the Sign fragment.
2189 */
09df123d 2190 err = btintel_secure_send(hdev, 0x02, 256, fw->data + 388);
cda0dd78
MH		 2191 if (err < 0) {
2192 BT_ERR("%s: Failed to send firmware signature (%d)",
2193 hdev->name, err);
2194 goto done;
2195 }
2196
2197 fw_ptr = fw->data + 644;
e66890a9 2198 frag_len = 0;
cda0dd78
MH		 2199
2200 while (fw_ptr - fw->data < fw->size) {
e66890a9 2201 struct hci_command_hdr *cmd = (void *)(fw_ptr + frag_len);
cda0dd78 2202
e66890a9 2203 frag_len += sizeof(*cmd) + cmd->plen;
cda0dd78 2204
5075edae 2205 /* The parameter length of the secure send command requires
e66890a9
MH		 2206 * a 4 byte alignment. It happens so that the firmware file
2207 * contains proper Intel_NOP commands to align the fragments
2208 * as needed.
2209 *
2210 * Send set of commands with 4 byte alignment from the
2211 * firmware data buffer as a single Data fragement.
cda0dd78 2212 */
e66890a9 2213 if (!(frag_len % 4)) {
09df123d 2214 err = btintel_secure_send(hdev, 0x01, frag_len, fw_ptr);
e66890a9
MH		 2215 if (err < 0) {
2216 BT_ERR("%s: Failed to send firmware data (%d)",
2217 hdev->name, err);
2218 goto done;
2219 }
cda0dd78 2220
e66890a9
MH		 2221 fw_ptr += frag_len;
2222 frag_len = 0;
2223 }
cda0dd78
MH		 2224 }
2225
ce6bb929
MH		 2226 set_bit(BTUSB_FIRMWARE_LOADED, &data->flags);
2227
a087a98e
JH		 2228 BT_INFO("%s: Waiting for firmware download to complete", hdev->name);
2229
cda0dd78
MH		 2230 /* Before switching the device into operational mode and with that
2231 * booting the loaded firmware, wait for the bootloader notification
2232 * that all fragments have been successfully received.
2233 *
a087a98e
JH		 2234 * When the event processing receives the notification, then the
2235 * BTUSB_DOWNLOADING flag will be cleared.
2236 *
2237 * The firmware loading should not take longer than 5 seconds
2238 * and thus just timeout if that happens and fail the setup
2239 * of this device.
cda0dd78 2240 */
129a7693
JH		 2241 err = wait_on_bit_timeout(&data->flags, BTUSB_DOWNLOADING,
2242 TASK_INTERRUPTIBLE,
2243 msecs_to_jiffies(5000));
a087a98e
JH		 2244 if (err == 1) {
2245 BT_ERR("%s: Firmware loading interrupted", hdev->name);
2246 err = -EINTR;
2247 goto done;
2248 }
cda0dd78 2249
a087a98e
JH		 2250 if (err) {
2251 BT_ERR("%s: Firmware loading timeout", hdev->name);
2252 err = -ETIMEDOUT;
2253 goto done;
cda0dd78
MH		 2254 }
2255
2256 if (test_bit(BTUSB_FIRMWARE_FAILED, &data->flags)) {
2257 BT_ERR("%s: Firmware loading failed", hdev->name);
2258 err = -ENOEXEC;
2259 goto done;
2260 }
2261
2262 rettime = ktime_get();
2263 delta = ktime_sub(rettime, calltime);
2264 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2265
2266 BT_INFO("%s: Firmware loaded in %llu usecs", hdev->name, duration);
2267
2268done:
2269 release_firmware(fw);
2270
2271 if (err < 0)
2272 return err;
2273
2274 calltime = ktime_get();
2275
2276 set_bit(BTUSB_BOOTING, &data->flags);
2277
2278 skb = __hci_cmd_sync(hdev, 0xfc01, sizeof(reset_param), reset_param,
2279 HCI_INIT_TIMEOUT);
2280 if (IS_ERR(skb))
2281 return PTR_ERR(skb);
2282
2283 kfree_skb(skb);
2284
2285 /* The bootloader will not indicate when the device is ready. This
2286 * is done by the operational firmware sending bootup notification.
fad70972
JH		 2287 *
2288 * Booting into operational firmware should not take longer than
2289 * 1 second. However if that happens, then just fail the setup
2290 * since something went wrong.
cda0dd78 2291 */
fad70972 2292 BT_INFO("%s: Waiting for device to boot", hdev->name);
cda0dd78 2293
129a7693
JH		 2294 err = wait_on_bit_timeout(&data->flags, BTUSB_BOOTING,
2295 TASK_INTERRUPTIBLE,
2296 msecs_to_jiffies(1000));
cda0dd78 2297
fad70972
JH		 2298 if (err == 1) {
2299 BT_ERR("%s: Device boot interrupted", hdev->name);
2300 return -EINTR;
2301 }
cda0dd78 2302
fad70972
JH		 2303 if (err) {
2304 BT_ERR("%s: Device boot timeout", hdev->name);
2305 return -ETIMEDOUT;
cda0dd78
MH		 2306 }
2307
2308 rettime = ktime_get();
2309 delta = ktime_sub(rettime, calltime);
2310 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2311
2312 BT_INFO("%s: Device booted in %llu usecs", hdev->name, duration);
2313
2314 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2315
52cc9168
THJA		 2316 /* Once the device is running in operational mode, it needs to apply
2317 * the device configuration (DDC) parameters.
2318 *
2319 * The device can work without DDC parameters, so even if it fails
2320 * to load the file, no need to fail the setup.
2321 */
e924d3d6 2322 btintel_load_ddc_config(hdev, fwname);
52cc9168 2323
213445b2
MH		 2324 /* Set the event mask for Intel specific vendor events. This enables
2325 * a few extra events that are useful during general operation. It
2326 * does not enable any debugging related events.
2327 *
2328 * The device will function correctly without these events enabled
2329 * and thus no need to fail the setup.
2330 */
2331 btintel_set_event_mask(hdev, false);
2332
cda0dd78
MH		 2333 return 0;
2334}
2335
bfbd45e9
THJA		 2336static int btusb_shutdown_intel(struct hci_dev *hdev)
2337{
2338 struct sk_buff *skb;
2339 long ret;
2340
2341 /* Some platforms have an issue with BT LED when the interface is
2342 * down or BT radio is turned off, which takes 5 seconds to BT LED
2343 * goes off. This command turns off the BT LED immediately.
2344 */
2345 skb = __hci_cmd_sync(hdev, 0xfc3f, 0, NULL, HCI_INIT_TIMEOUT);
2346 if (IS_ERR(skb)) {
2347 ret = PTR_ERR(skb);
2348 BT_ERR("%s: turning off Intel device LED failed (%ld)",
2349 hdev->name, ret);
2350 return ret;
2351 }
2352 kfree_skb(skb);
2353
2354 return 0;
2355}
2356
ae8df494
AK		 2357static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
2358 const bdaddr_t *bdaddr)
2359{
2360 struct sk_buff *skb;
2361 u8 buf[8];
2362 long ret;
2363
2364 buf[0] = 0xfe;
2365 buf[1] = sizeof(bdaddr_t);
2366 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
2367
2368 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2369 if (IS_ERR(skb)) {
2370 ret = PTR_ERR(skb);
2371 BT_ERR("%s: changing Marvell device address failed (%ld)",
2372 hdev->name, ret);
2373 return ret;
2374 }
2375 kfree_skb(skb);
2376
2377 return 0;
2378}
2379
5859223e
TK		 2380static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
2381 const bdaddr_t *bdaddr)
2382{
2383 struct sk_buff *skb;
2384 u8 buf[10];
2385 long ret;
2386
2387 buf[0] = 0x01;
2388 buf[1] = 0x01;
2389 buf[2] = 0x00;
2390 buf[3] = sizeof(bdaddr_t);
2391 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
2392
2393 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2394 if (IS_ERR(skb)) {
2395 ret = PTR_ERR(skb);
2396 BT_ERR("%s: Change address command failed (%ld)",
2397 hdev->name, ret);
2398 return ret;
2399 }
2400 kfree_skb(skb);
2401
2402 return 0;
2403}
2404
3267c884
KBYT		 2405#define QCA_DFU_PACKET_LEN 4096
2406
2407#define QCA_GET_TARGET_VERSION 0x09
2408#define QCA_CHECK_STATUS 0x05
2409#define QCA_DFU_DOWNLOAD 0x01
2410
2411#define QCA_SYSCFG_UPDATED 0x40
2412#define QCA_PATCH_UPDATED 0x80
2413#define QCA_DFU_TIMEOUT 3000
2414
2415struct qca_version {
2416 __le32 rom_version;
2417 __le32 patch_version;
2418 __le32 ram_version;
2419 __le32 ref_clock;
2420 __u8 reserved[4];
2421} __packed;
2422
2423struct qca_rampatch_version {
2424 __le16 rom_version;
2425 __le16 patch_version;
2426} __packed;
2427
2428struct qca_device_info {
bf906b3d
KBYT		 2429 u32 rom_version;
2430 u8 rampatch_hdr; /* length of header in rampatch */
2431 u8 nvm_hdr; /* length of header in NVM */
2432 u8 ver_offset; /* offset of version structure in rampatch */
3267c884
KBYT		 2433};
2434
2435static const struct qca_device_info qca_devices_table[] = {
2436 { 0x00000100, 20, 4, 10 }, /* Rome 1.0 */
2437 { 0x00000101, 20, 4, 10 }, /* Rome 1.1 */
7f6e6363 2438 { 0x00000200, 28, 4, 18 }, /* Rome 2.0 */
3267c884
KBYT		 2439 { 0x00000201, 28, 4, 18 }, /* Rome 2.1 */
2440 { 0x00000300, 28, 4, 18 }, /* Rome 3.0 */
2441 { 0x00000302, 28, 4, 18 }, /* Rome 3.2 */
2442};
2443
2444static int btusb_qca_send_vendor_req(struct hci_dev *hdev, u8 request,
2445 void *data, u16 size)
2446{
2447 struct btusb_data *btdata = hci_get_drvdata(hdev);
2448 struct usb_device *udev = btdata->udev;
2449 int pipe, err;
2450 u8 *buf;
2451
2452 buf = kmalloc(size, GFP_KERNEL);
2453 if (!buf)
2454 return -ENOMEM;
2455
2456 /* Found some of USB hosts have IOT issues with ours so that we should
2457 * not wait until HCI layer is ready.
2458 */
2459 pipe = usb_rcvctrlpipe(udev, 0);
2460 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
2461 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
2462 if (err < 0) {
2463 BT_ERR("%s: Failed to access otp area (%d)", hdev->name, err);
2464 goto done;
2465 }
2466
2467 memcpy(data, buf, size);
2468
2469done:
2470 kfree(buf);
2471
2472 return err;
2473}
2474
2475static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
2476 const struct firmware *firmware,
2477 size_t hdr_size)
2478{
2479 struct btusb_data *btdata = hci_get_drvdata(hdev);
2480 struct usb_device *udev = btdata->udev;
2481 size_t count, size, sent = 0;
2482 int pipe, len, err;
2483 u8 *buf;
2484
2485 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
2486 if (!buf)
2487 return -ENOMEM;
2488
2489 count = firmware->size;
2490
2491 size = min_t(size_t, count, hdr_size);
2492 memcpy(buf, firmware->data, size);
2493
2494 /* USB patches should go down to controller through USB path
2495 * because binary format fits to go down through USB channel.
2496 * USB control path is for patching headers and USB bulk is for
2497 * patch body.
2498 */
2499 pipe = usb_sndctrlpipe(udev, 0);
2500 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
2501 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
2502 if (err < 0) {
2503 BT_ERR("%s: Failed to send headers (%d)", hdev->name, err);
2504 goto done;
2505 }
2506
2507 sent += size;
2508 count -= size;
2509
2510 while (count) {
2511 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
2512
2513 memcpy(buf, firmware->data + sent, size);
2514
2515 pipe = usb_sndbulkpipe(udev, 0x02);
2516 err = usb_bulk_msg(udev, pipe, buf, size, &len,
2517 QCA_DFU_TIMEOUT);
2518 if (err < 0) {
2519 BT_ERR("%s: Failed to send body at %zd of %zd (%d)",
2520 hdev->name, sent, firmware->size, err);
2521 break;
2522 }
2523
2524 if (size != len) {
2525 BT_ERR("%s: Failed to get bulk buffer", hdev->name);
2526 err = -EILSEQ;
2527 break;
2528 }
2529
2530 sent += size;
2531 count -= size;
2532 }
2533
2534done:
2535 kfree(buf);
2536 return err;
2537}
2538
2539static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
2540 struct qca_version *ver,
2541 const struct qca_device_info *info)
2542{
2543 struct qca_rampatch_version *rver;
2544 const struct firmware *fw;
bf906b3d
KBYT		 2545 u32 ver_rom, ver_patch;
2546 u16 rver_rom, rver_patch;
3267c884
KBYT		 2547 char fwname[64];
2548 int err;
2549
bf906b3d
KBYT		 2550 ver_rom = le32_to_cpu(ver->rom_version);
2551 ver_patch = le32_to_cpu(ver->patch_version);
2552
2553 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom);
3267c884
KBYT		 2554
2555 err = request_firmware(&fw, fwname, &hdev->dev);
2556 if (err) {
2557 BT_ERR("%s: failed to request rampatch file: %s (%d)",
2558 hdev->name, fwname, err);
2559 return err;
2560 }
2561
2562 BT_INFO("%s: using rampatch file: %s", hdev->name, fwname);
bf906b3d 2563
3267c884 2564 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
bf906b3d
KBYT		 2565 rver_rom = le16_to_cpu(rver->rom_version);
2566 rver_patch = le16_to_cpu(rver->patch_version);
2567
3267c884 2568 BT_INFO("%s: QCA: patch rome 0x%x build 0x%x, firmware rome 0x%x "
bf906b3d
KBYT		 2569 "build 0x%x", hdev->name, rver_rom, rver_patch, ver_rom,
2570 ver_patch);
3267c884 2571
bf906b3d 2572 if (rver_rom != ver_rom || rver_patch <= ver_patch) {
3267c884
KBYT		 2573 BT_ERR("%s: rampatch file version did not match with firmware",
2574 hdev->name);
2575 err = -EINVAL;
2576 goto done;
2577 }
2578
2579 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
2580
2581done:
2582 release_firmware(fw);
2583
2584 return err;
2585}
2586
2587static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
2588 struct qca_version *ver,
2589 const struct qca_device_info *info)
2590{
2591 const struct firmware *fw;
2592 char fwname[64];
2593 int err;
2594
2595 snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin",
2596 le32_to_cpu(ver->rom_version));
2597
2598 err = request_firmware(&fw, fwname, &hdev->dev);
2599 if (err) {
2600 BT_ERR("%s: failed to request NVM file: %s (%d)",
2601 hdev->name, fwname, err);
2602 return err;
2603 }
2604
2605 BT_INFO("%s: using NVM file: %s", hdev->name, fwname);
2606
2607 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
2608
2609 release_firmware(fw);
2610
2611 return err;
2612}
2613
2614static int btusb_setup_qca(struct hci_dev *hdev)
2615{
2616 const struct qca_device_info *info = NULL;
2617 struct qca_version ver;
bf906b3d 2618 u32 ver_rom;
3267c884
KBYT		 2619 u8 status;
2620 int i, err;
2621
2622 err = btusb_qca_send_vendor_req(hdev, QCA_GET_TARGET_VERSION, &ver,
eb50042f 2623 sizeof(ver));
3267c884
KBYT		 2624 if (err < 0)
2625 return err;
2626
bf906b3d 2627 ver_rom = le32_to_cpu(ver.rom_version);
3267c884 2628 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
bf906b3d 2629 if (ver_rom == qca_devices_table[i].rom_version)
3267c884
KBYT		 2630 info = &qca_devices_table[i];
2631 }
2632 if (!info) {
2633 BT_ERR("%s: don't support firmware rome 0x%x", hdev->name,
bf906b3d 2634 ver_rom);
3267c884
KBYT		 2635 return -ENODEV;
2636 }
2637
2638 err = btusb_qca_send_vendor_req(hdev, QCA_CHECK_STATUS, &status,
2639 sizeof(status));
2640 if (err < 0)
2641 return err;
2642
2643 if (!(status & QCA_PATCH_UPDATED)) {
2644 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
2645 if (err < 0)
2646 return err;
2647 }
2648
2649 if (!(status & QCA_SYSCFG_UPDATED)) {
2650 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
2651 if (err < 0)
2652 return err;
2653 }
2654
2655 return 0;
2656}
2657
9d08f504
MH		 2658#ifdef CONFIG_BT_HCIBTUSB_BCM
2659static inline int __set_diag_interface(struct hci_dev *hdev)
2660{
2661 struct btusb_data *data = hci_get_drvdata(hdev);
2662 struct usb_interface *intf = data->diag;
2663 int i;
2664
2665 if (!data->diag)
2666 return -ENODEV;
2667
2668 data->diag_tx_ep = NULL;
2669 data->diag_rx_ep = NULL;
2670
2671 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2672 struct usb_endpoint_descriptor *ep_desc;
2673
2674 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2675
2676 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
2677 data->diag_tx_ep = ep_desc;
2678 continue;
2679 }
2680
2681 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
2682 data->diag_rx_ep = ep_desc;
2683 continue;
2684 }
2685 }
2686
2687 if (!data->diag_tx_ep || !data->diag_rx_ep) {
2688 BT_ERR("%s invalid diagnostic descriptors", hdev->name);
2689 return -ENODEV;
2690 }
2691
2692 return 0;
2693}
2694
2695static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable)
2696{
2697 struct btusb_data *data = hci_get_drvdata(hdev);
2698 struct sk_buff *skb;
2699 struct urb *urb;
2700 unsigned int pipe;
2701
2702 if (!data->diag_tx_ep)
2703 return ERR_PTR(-ENODEV);
2704
2705 urb = usb_alloc_urb(0, GFP_KERNEL);
2706 if (!urb)
2707 return ERR_PTR(-ENOMEM);
2708
2709 skb = bt_skb_alloc(2, GFP_KERNEL);
2710 if (!skb) {
2711 usb_free_urb(urb);
2712 return ERR_PTR(-ENOMEM);
2713 }
2714
2715 *skb_put(skb, 1) = 0xf0;
2716 *skb_put(skb, 1) = enable;
2717
2718 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress);
2719
2720 usb_fill_bulk_urb(urb, data->udev, pipe,
2721 skb->data, skb->len, btusb_tx_complete, skb);
2722
2723 skb->dev = (void *)hdev;
2724
2725 return urb;
2726}
2727
2728static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable)
2729{
2730 struct btusb_data *data = hci_get_drvdata(hdev);
2731 struct urb *urb;
2732
2733 if (!data->diag)
2734 return -ENODEV;
2735
2736 if (!test_bit(HCI_RUNNING, &hdev->flags))
2737 return -ENETDOWN;
2738
2739 urb = alloc_diag_urb(hdev, enable);
2740 if (IS_ERR(urb))
2741 return PTR_ERR(urb);
2742
2743 return submit_or_queue_tx_urb(hdev, urb);
2744}
2745#endif
2746
5e23b923 2747static int btusb_probe(struct usb_interface *intf,
89e7533d 2748 const struct usb_device_id *id)
5e23b923
MH		 2749{
2750 struct usb_endpoint_descriptor *ep_desc;
2751 struct btusb_data *data;
2752 struct hci_dev *hdev;
22f8e9db 2753 unsigned ifnum_base;
5e23b923
MH		 2754 int i, err;
2755
2756 BT_DBG("intf %p id %p", intf, id);
2757
cfeb4145 2758 /* interface numbers are hardcoded in the spec */
22f8e9db
MH		 2759 if (intf->cur_altsetting->desc.bInterfaceNumber != 0) {
2760 if (!(id->driver_info & BTUSB_IFNUM_2))
2761 return -ENODEV;
2762 if (intf->cur_altsetting->desc.bInterfaceNumber != 2)
2763 return -ENODEV;
2764 }
2765
2766 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber;
5e23b923
MH		 2767
2768 if (!id->driver_info) {
2769 const struct usb_device_id *match;
89e7533d 2770
5e23b923
MH		 2771 match = usb_match_id(intf, blacklist_table);
2772 if (match)
2773 id = match;
2774 }
2775
cfeb4145
MH		 2776 if (id->driver_info == BTUSB_IGNORE)
2777 return -ENODEV;
2778
2d25f8b4
SL		 2779 if (id->driver_info & BTUSB_ATH3012) {
2780 struct usb_device *udev = interface_to_usbdev(intf);
2781
2782 /* Old firmware would otherwise let ath3k driver load
2783 * patch and sysconfig files */
2784 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
2785 return -ENODEV;
2786 }
2787
98921dbd 2788 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
5e23b923
MH		 2789 if (!data)
2790 return -ENOMEM;
2791
2792 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2793 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2794
2795 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
2796 data->intr_ep = ep_desc;
2797 continue;
2798 }
2799
2800 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
2801 data->bulk_tx_ep = ep_desc;
2802 continue;
2803 }
2804
2805 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
2806 data->bulk_rx_ep = ep_desc;
2807 continue;
2808 }
2809 }
2810
98921dbd 2811 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
5e23b923 2812 return -ENODEV;
5e23b923 2813
893ba544
MH		 2814 if (id->driver_info & BTUSB_AMP) {
2815 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
2816 data->cmdreq = 0x2b;
2817 } else {
2818 data->cmdreq_type = USB_TYPE_CLASS;
2819 data->cmdreq = 0x00;
2820 }
7a9d4020 2821
5e23b923 2822 data->udev = interface_to_usbdev(intf);
5fbcd260 2823 data->intf = intf;
5e23b923 2824
5e23b923 2825 INIT_WORK(&data->work, btusb_work);
7bee549e 2826 INIT_WORK(&data->waker, btusb_waker);
803b5836
MH		 2827 init_usb_anchor(&data->deferred);
2828 init_usb_anchor(&data->tx_anchor);
7bee549e 2829 spin_lock_init(&data->txlock);
5e23b923 2830
5e23b923
MH		 2831 init_usb_anchor(&data->intr_anchor);
2832 init_usb_anchor(&data->bulk_anchor);
9bfa35fe 2833 init_usb_anchor(&data->isoc_anchor);
9d08f504 2834 init_usb_anchor(&data->diag_anchor);
803b5836 2835 spin_lock_init(&data->rxlock);
5e23b923 2836
cda0dd78
MH		 2837 if (id->driver_info & BTUSB_INTEL_NEW) {
2838 data->recv_event = btusb_recv_event_intel;
2839 data->recv_bulk = btusb_recv_bulk_intel;
2840 set_bit(BTUSB_BOOTLOADER, &data->flags);
2841 } else {
2842 data->recv_event = hci_recv_frame;
2843 data->recv_bulk = btusb_recv_bulk;
2844 }
2cbd3f5c 2845
5e23b923 2846 hdev = hci_alloc_dev();
98921dbd 2847 if (!hdev)
5e23b923 2848 return -ENOMEM;
5e23b923 2849
c13854ce 2850 hdev->bus = HCI_USB;
155961e8 2851 hci_set_drvdata(hdev, data);
5e23b923 2852
893ba544
MH		 2853 if (id->driver_info & BTUSB_AMP)
2854 hdev->dev_type = HCI_AMP;
2855 else
2856 hdev->dev_type = HCI_BREDR;
2857
5e23b923
MH		 2858 data->hdev = hdev;
2859
2860 SET_HCIDEV_DEV(hdev, &intf->dev);
2861
9f8f962c
MH		 2862 hdev->open = btusb_open;
2863 hdev->close = btusb_close;
2864 hdev->flush = btusb_flush;
2865 hdev->send = btusb_send_frame;
2866 hdev->notify = btusb_notify;
2867
6c9d435d
MH		 2868 if (id->driver_info & BTUSB_BCM2045)
2869 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
2870
9f8f962c
MH		 2871 if (id->driver_info & BTUSB_BCM92035)
2872 hdev->setup = btusb_setup_bcm92035;
5e23b923 2873
c2bfb100 2874#ifdef CONFIG_BT_HCIBTUSB_BCM
abbaf50e 2875 if (id->driver_info & BTUSB_BCM_PATCHRAM) {
49a5f782 2876 hdev->manufacturer = 15;
c2bfb100 2877 hdev->setup = btbcm_setup_patchram;
9d08f504 2878 hdev->set_diag = btusb_bcm_set_diag;
1df1f591 2879 hdev->set_bdaddr = btbcm_set_bdaddr;
9d08f504
MH		 2880
2881 /* Broadcom LM_DIAG Interface numbers are hardcoded */
22f8e9db 2882 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
abbaf50e 2883 }
10d4c673 2884
9d08f504 2885 if (id->driver_info & BTUSB_BCM_APPLE) {
49a5f782 2886 hdev->manufacturer = 15;
c2bfb100 2887 hdev->setup = btbcm_setup_apple;
9d08f504
MH		 2888 hdev->set_diag = btusb_bcm_set_diag;
2889
2890 /* Broadcom LM_DIAG Interface numbers are hardcoded */
22f8e9db 2891 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
9d08f504 2892 }
c2bfb100 2893#endif
17b2772b 2894
cb8d6597 2895 if (id->driver_info & BTUSB_INTEL) {
49a5f782 2896 hdev->manufacturer = 2;
dffd30ee 2897 hdev->setup = btusb_setup_intel;
bfbd45e9 2898 hdev->shutdown = btusb_shutdown_intel;
3e24767b 2899 hdev->set_diag = btintel_set_diag_mfg;
4185a0f5 2900 hdev->set_bdaddr = btintel_set_bdaddr;
c33fb9b4 2901 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
c1154842 2902 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3e24767b 2903 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks);
cb8d6597 2904 }
dffd30ee 2905
cda0dd78 2906 if (id->driver_info & BTUSB_INTEL_NEW) {
49a5f782 2907 hdev->manufacturer = 2;
cda0dd78
MH		 2908 hdev->send = btusb_send_frame_intel;
2909 hdev->setup = btusb_setup_intel_new;
eeb6abe9 2910 hdev->hw_error = btintel_hw_error;
6d2e50d2 2911 hdev->set_diag = btintel_set_diag;
4185a0f5 2912 hdev->set_bdaddr = btintel_set_bdaddr;
b970c5ba 2913 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
d8270fbb 2914 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks);
cda0dd78
MH		 2915 }
2916
ae8df494
AK		 2917 if (id->driver_info & BTUSB_MARVELL)
2918 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
2919
661cf88a
MH		 2920 if (id->driver_info & BTUSB_SWAVE) {
2921 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
d57dbe77 2922 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
661cf88a 2923 }
d57dbe77 2924
e4c534bb
MH		 2925 if (id->driver_info & BTUSB_INTEL_BOOT) {
2926 hdev->manufacturer = 2;
40df783d 2927 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
e4c534bb 2928 }
40df783d 2929
79f0c87d 2930 if (id->driver_info & BTUSB_ATH3012) {
5859223e 2931 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
3d50d51a 2932 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
79f0c87d
JP		 2933 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
2934 }
5859223e 2935
3267c884
KBYT		 2936 if (id->driver_info & BTUSB_QCA_ROME) {
2937 data->setup_on_usb = btusb_setup_qca;
2938 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
2939 }
2940
db33c77d 2941#ifdef CONFIG_BT_HCIBTUSB_RTL
04b8c814 2942 if (id->driver_info & BTUSB_REALTEK) {
db33c77d 2943 hdev->setup = btrtl_setup_realtek;
04b8c814
DD		 2944
2945 /* Realtek devices lose their updated firmware over suspend,
2946 * but the USB hub doesn't notice any status change.
2947 * Explicitly request a device reset on resume.
2948 */
2949 set_bit(BTUSB_RESET_RESUME, &data->flags);
2950 }
db33c77d 2951#endif
a2698a9b 2952
893ba544
MH		 2953 if (id->driver_info & BTUSB_AMP) {
2954 /* AMP controllers do not support SCO packets */
2955 data->isoc = NULL;
2956 } else {
22f8e9db
MH		 2957 /* Interface orders are hardcoded in the specification */
2958 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1);
893ba544 2959 }
9bfa35fe 2960
7a9d4020 2961 if (!reset)
a6c511c6 2962 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
cfeb4145
MH		 2963
2964 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
2965 if (!disable_scofix)
2966 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
2967 }
2968
9bfa35fe
MH		 2969 if (id->driver_info & BTUSB_BROKEN_ISOC)
2970 data->isoc = NULL;
2971
7a9d4020
MH		 2972 if (id->driver_info & BTUSB_DIGIANSWER) {
2973 data->cmdreq_type = USB_TYPE_VENDOR;
a6c511c6 2974 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
7a9d4020
MH		 2975 }
2976
2977 if (id->driver_info & BTUSB_CSR) {
2978 struct usb_device *udev = data->udev;
81cac64b 2979 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
7a9d4020
MH		 2980
2981 /* Old firmware would otherwise execute USB reset */
81cac64b 2982 if (bcdDevice < 0x117)
a6c511c6 2983 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
81cac64b
MH		 2984
2985 /* Fake CSR devices with broken commands */
6cafcd95 2986 if (bcdDevice <= 0x100 || bcdDevice == 0x134)
81cac64b 2987 hdev->setup = btusb_setup_csr;
49c989a0
JP		 2988
2989 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
7a9d4020
MH		 2990 }
2991
cfeb4145 2992 if (id->driver_info & BTUSB_SNIFFER) {
9bfa35fe 2993 struct usb_device *udev = data->udev;
cfeb4145 2994
7a9d4020 2995 /* New sniffer firmware has crippled HCI interface */
cfeb4145
MH		 2996 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
2997 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
2998 }
2999
3a5ef20c
MH		 3000 if (id->driver_info & BTUSB_INTEL_BOOT) {
3001 /* A bug in the bootloader causes that interrupt interface is
3002 * only enabled after receiving SetInterface(0, AltSetting=0).
3003 */
3004 err = usb_set_interface(data->udev, 0, 0);
3005 if (err < 0) {
3006 BT_ERR("failed to set interface 0, alt 0 %d", err);
3007 hci_free_dev(hdev);
3008 return err;
3009 }
3010 }
3011
9bfa35fe
MH		 3012 if (data->isoc) {
3013 err = usb_driver_claim_interface(&btusb_driver,
89e7533d 3014 data->isoc, data);
9bfa35fe
MH		 3015 if (err < 0) {
3016 hci_free_dev(hdev);
9bfa35fe
MH		 3017 return err;
3018 }
3019 }
3020
9d08f504
MH		 3021#ifdef CONFIG_BT_HCIBTUSB_BCM
3022 if (data->diag) {
3023 if (!usb_driver_claim_interface(&btusb_driver,
3024 data->diag, data))
3025 __set_diag_interface(hdev);
3026 else
3027 data->diag = NULL;
3028 }
3029#endif
3030
5e23b923
MH		 3031 err = hci_register_dev(hdev);
3032 if (err < 0) {
3033 hci_free_dev(hdev);
5e23b923
MH		 3034 return err;
3035 }
3036
3037 usb_set_intfdata(intf, data);
3038
3039 return 0;
3040}
3041
3042static void btusb_disconnect(struct usb_interface *intf)
3043{
3044 struct btusb_data *data = usb_get_intfdata(intf);
3045 struct hci_dev *hdev;
3046
3047 BT_DBG("intf %p", intf);
3048
3049 if (!data)
3050 return;
3051
3052 hdev = data->hdev;
5fbcd260
MH		 3053 usb_set_intfdata(data->intf, NULL);
3054
3055 if (data->isoc)
3056 usb_set_intfdata(data->isoc, NULL);
5e23b923 3057
9d08f504
MH		 3058 if (data->diag)
3059 usb_set_intfdata(data->diag, NULL);
3060
5e23b923
MH		 3061 hci_unregister_dev(hdev);
3062
9d08f504
MH		 3063 if (intf == data->intf) {
3064 if (data->isoc)
3065 usb_driver_release_interface(&btusb_driver, data->isoc);
3066 if (data->diag)
3067 usb_driver_release_interface(&btusb_driver, data->diag);
3068 } else if (intf == data->isoc) {
3069 if (data->diag)
3070 usb_driver_release_interface(&btusb_driver, data->diag);
5fbcd260 3071 usb_driver_release_interface(&btusb_driver, data->intf);
9d08f504
MH		 3072 } else if (intf == data->diag) {
3073 usb_driver_release_interface(&btusb_driver, data->intf);
3074 if (data->isoc)
3075 usb_driver_release_interface(&btusb_driver, data->isoc);
3076 }
5fbcd260 3077
5e23b923
MH		 3078 hci_free_dev(hdev);
3079}
3080
7bee549e 3081#ifdef CONFIG_PM
6a88adf2
MH		 3082static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
3083{
3084 struct btusb_data *data = usb_get_intfdata(intf);
3085
3086 BT_DBG("intf %p", intf);
3087
3088 if (data->suspend_count++)
3089 return 0;
3090
7bee549e 3091 spin_lock_irq(&data->txlock);
5b1b0b81 3092 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
7bee549e
ON		 3093 set_bit(BTUSB_SUSPENDING, &data->flags);
3094 spin_unlock_irq(&data->txlock);
3095 } else {
3096 spin_unlock_irq(&data->txlock);
3097 data->suspend_count--;
3098 return -EBUSY;
3099 }
3100
6a88adf2
MH		 3101 cancel_work_sync(&data->work);
3102
7bee549e 3103 btusb_stop_traffic(data);
6a88adf2
MH		 3104 usb_kill_anchored_urbs(&data->tx_anchor);
3105
04b8c814
DD		 3106 /* Optionally request a device reset on resume, but only when
3107 * wakeups are disabled. If wakeups are enabled we assume the
3108 * device will stay powered up throughout suspend.
3109 */
3110 if (test_bit(BTUSB_RESET_RESUME, &data->flags) &&
3111 !device_may_wakeup(&data->udev->dev))
3112 data->udev->reset_resume = 1;
3113
6a88adf2
MH		 3114 return 0;
3115}
3116
7bee549e
ON		 3117static void play_deferred(struct btusb_data *data)
3118{
3119 struct urb *urb;
3120 int err;
3121
3122 while ((urb = usb_get_from_anchor(&data->deferred))) {
3123 err = usb_submit_urb(urb, GFP_ATOMIC);
3124 if (err < 0)
3125 break;
3126
3127 data->tx_in_flight++;
3128 }
3129 usb_scuttle_anchored_urbs(&data->deferred);
3130}
3131
6a88adf2
MH		 3132static int btusb_resume(struct usb_interface *intf)
3133{
3134 struct btusb_data *data = usb_get_intfdata(intf);
3135 struct hci_dev *hdev = data->hdev;
7bee549e 3136 int err = 0;
6a88adf2
MH		 3137
3138 BT_DBG("intf %p", intf);
3139
3140 if (--data->suspend_count)
3141 return 0;
3142
3143 if (!test_bit(HCI_RUNNING, &hdev->flags))
7bee549e 3144 goto done;
6a88adf2
MH		 3145
3146 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
3147 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
3148 if (err < 0) {
3149 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
7bee549e 3150 goto failed;
6a88adf2
MH		 3151 }
3152 }
3153
3154 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
43c2e57f
MH		 3155 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
3156 if (err < 0) {
6a88adf2 3157 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
7bee549e
ON		 3158 goto failed;
3159 }
3160
3161 btusb_submit_bulk_urb(hdev, GFP_NOIO);
6a88adf2
MH		 3162 }
3163
3164 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
3165 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
3166 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
3167 else
3168 btusb_submit_isoc_urb(hdev, GFP_NOIO);
3169 }
3170
7bee549e
ON		 3171 spin_lock_irq(&data->txlock);
3172 play_deferred(data);
3173 clear_bit(BTUSB_SUSPENDING, &data->flags);
3174 spin_unlock_irq(&data->txlock);
3175 schedule_work(&data->work);
3176
6a88adf2 3177 return 0;
7bee549e
ON		 3178
3179failed:
3180 usb_scuttle_anchored_urbs(&data->deferred);
3181done:
3182 spin_lock_irq(&data->txlock);
3183 clear_bit(BTUSB_SUSPENDING, &data->flags);
3184 spin_unlock_irq(&data->txlock);
3185
3186 return err;
6a88adf2 3187}
7bee549e 3188#endif
6a88adf2 3189
5e23b923
MH		 3190static struct usb_driver btusb_driver = {
3191 .name = "btusb",
3192 .probe = btusb_probe,
3193 .disconnect = btusb_disconnect,
7bee549e 3194#ifdef CONFIG_PM
6a88adf2
MH		 3195 .suspend = btusb_suspend,
3196 .resume = btusb_resume,
7bee549e 3197#endif
5e23b923 3198 .id_table = btusb_table,
7bee549e 3199 .supports_autosuspend = 1,
e1f12eb6 3200 .disable_hub_initiated_lpm = 1,
5e23b923
MH		 3201};
3202
93f1508c 3203module_usb_driver(btusb_driver);
5e23b923 3204
cfeb4145
MH		 3205module_param(disable_scofix, bool, 0644);
3206MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
3207
3208module_param(force_scofix, bool, 0644);
3209MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
3210
3211module_param(reset, bool, 0644);
3212MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
3213
5e23b923
MH		 3214MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
3215MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
3216MODULE_VERSION(VERSION);
3217MODULE_LICENSE("GPL");
Linux kernel - Deliverables
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