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Bluetooth: fix power_on vs close race
[mirror_ubuntu-bionic-kernel.git] / drivers / bluetooth / btusb.c
CommitLineData
5e23b923
MH		 1/*
2 *
3 * Generic Bluetooth USB driver
4 *
9bfa35fe 5 * Copyright (C) 2005-2008 Marcel Holtmann <marcel@holtmann.org>
5e23b923
MH		 6 *
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 *
22 */
23
5e23b923 24#include <linux/module.h>
5e23b923 25#include <linux/usb.h>
dffd30ee 26#include <linux/firmware.h>
a2698a9b 27#include <asm/unaligned.h>
5e23b923
MH		 28
29#include <net/bluetooth/bluetooth.h>
30#include <net/bluetooth/hci_core.h>
31
4185a0f5 32#include "btintel.h"
1df1f591 33#include "btbcm.h"
db33c77d 34#include "btrtl.h"
1df1f591 35
34dced9b 36#define VERSION "0.8"
cfeb4145 37
90ab5ee9
RR		 38static bool disable_scofix;
39static bool force_scofix;
7a9d4020 40
917a3337 41static bool reset = true;
cfeb4145
MH		 42
43static struct usb_driver btusb_driver;
44
45#define BTUSB_IGNORE 0x01
7a9d4020
MH		 46#define BTUSB_DIGIANSWER 0x02
47#define BTUSB_CSR 0x04
48#define BTUSB_SNIFFER 0x08
49#define BTUSB_BCM92035 0x10
50#define BTUSB_BROKEN_ISOC 0x20
51#define BTUSB_WRONG_SCO_MTU 0x40
2d25f8b4 52#define BTUSB_ATH3012 0x80
dffd30ee 53#define BTUSB_INTEL 0x100
40df783d
MH		 54#define BTUSB_INTEL_BOOT 0x200
55#define BTUSB_BCM_PATCHRAM 0x400
ae8df494 56#define BTUSB_MARVELL 0x800
4fcef8ed 57#define BTUSB_SWAVE 0x1000
cda0dd78 58#define BTUSB_INTEL_NEW 0x2000
893ba544 59#define BTUSB_AMP 0x4000
3267c884 60#define BTUSB_QCA_ROME 0x8000
17b2772b 61#define BTUSB_BCM_APPLE 0x10000
a2698a9b 62#define BTUSB_REALTEK 0x20000
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 },
28c971d8 199 { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 },
0b880062
AS		 200 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
201 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
202 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
203 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
1fb4e09a 204 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
0b880062
AS		 205 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
206 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
7e730c7f 207 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
ec0810d2 208 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
134d3b35 209 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
81d90442 210 { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 },
0b880062 211 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
cd355ff0 212 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
0b880062 213 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
89d2975f 214 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
a735f9e2 215 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
d66629c1 216 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
2d25f8b4 217 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
94a32d10 218 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
07c0ea87 219 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
b131237c 220 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
1e56f1eb 221 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
0b880062 222 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
ebaf5795 223 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
18e0afab 224 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 },
0b880062 225 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
ac71311e 226 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
0a3658cc 227 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
ca79f232 228 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
0b880062
AS		 229 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
230 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
eed307e2 231 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
609574eb 232 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 },
5b77a1f3 233 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
3bb30a7c 234 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
033efa92 235 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
fa2f1394 236 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
75c6aca4 237 { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 },
0d0cef61 238 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
d9f51b51 239
e9036e33
CYC		 240 /* Atheros AR5BBU12 with sflash firmware */
241 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
242
85d59726 243 /* Atheros AR5BBU12 with sflash firmware */
bc21fde2 244 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
0b880062 245 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
85d59726 246
3267c884 247 /* QCA ROME chipset */
2054111b 248 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME },
c9e44474
MH		 249 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME },
250 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME },
3267c884 251
cfeb4145 252 /* Broadcom BCM2035 */
7a9d4020 253 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
0b880062
AS		 254 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
255 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 256
257 /* Broadcom BCM2045 */
7a9d4020
MH		 258 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
259 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
bdbef3d6 260
cfeb4145 261 /* IBM/Lenovo ThinkPad with Broadcom chip */
7a9d4020
MH		 262 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
263 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 264
265 /* HP laptop with Broadcom chip */
7a9d4020 266 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 267
268 /* Dell laptop with Broadcom chip */
7a9d4020 269 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 270
5ddd4a60 271 /* Dell Wireless 370 and 410 devices */
7a9d4020 272 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
5ddd4a60 273 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 274
7a9d4020
MH		 275 /* Belkin F8T012 and F8T013 devices */
276 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
277 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 278
5ddd4a60
MH		 279 /* Asus WL-BTD202 device */
280 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
281
282 /* Kensington Bluetooth USB adapter */
283 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
284
cfeb4145
MH		 285 /* RTX Telecom based adapters with buggy SCO support */
286 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
287 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
288
289 /* CONWISE Technology based adapters with buggy SCO support */
290 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
291
4fcef8ed 292 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
2eeac871 293 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE },
4fcef8ed 294
cfeb4145
MH		 295 /* Digianswer devices */
296 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
297 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
298
299 /* CSR BlueCore Bluetooth Sniffer */
4f64fa80
MH		 300 { USB_DEVICE(0x0a12, 0x0002),
301 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
cfeb4145
MH		 302
303 /* Frontline ComProbe Bluetooth Sniffer */
4f64fa80
MH		 304 { USB_DEVICE(0x16d3, 0x0002),
305 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
cfeb4145 306
cb1ee89f
MH		 307 /* Marvell Bluetooth devices */
308 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
309 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
310
d0ac9eb7 311 /* Intel Bluetooth devices */
407550fe 312 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
dffd30ee 313 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
ef4e5e4a 314 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL },
cda0dd78 315 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_NEW },
dffd30ee 316
d0ac9eb7
MH		 317 /* Other Intel Bluetooth devices */
318 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
319 .driver_info = BTUSB_IGNORE },
ae8df494 320
a2698a9b
DD		 321 /* Realtek Bluetooth devices */
322 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
323 .driver_info = BTUSB_REALTEK },
324
325 /* Additional Realtek 8723AE Bluetooth devices */
326 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
327 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
328
329 /* Additional Realtek 8723BE Bluetooth devices */
330 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
331 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
332 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
333 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
334 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
335
336 /* Additional Realtek 8821AE Bluetooth devices */
337 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
338 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
339 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
340 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
341 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
342
4481c076
PP		 343 /* Silicon Wave based devices */
344 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE },
345
5e23b923
MH		 346 { } /* Terminating entry */
347};
348
9bfa35fe
MH		 349#define BTUSB_MAX_ISOC_FRAMES 10
350
5e23b923
MH		 351#define BTUSB_INTR_RUNNING 0
352#define BTUSB_BULK_RUNNING 1
9bfa35fe 353#define BTUSB_ISOC_RUNNING 2
7bee549e 354#define BTUSB_SUSPENDING 3
08b8b6c4 355#define BTUSB_DID_ISO_RESUME 4
cda0dd78
MH		 356#define BTUSB_BOOTLOADER 5
357#define BTUSB_DOWNLOADING 6
ce6bb929 358#define BTUSB_FIRMWARE_LOADED 7
cda0dd78 359#define BTUSB_FIRMWARE_FAILED 8
ce6bb929 360#define BTUSB_BOOTING 9
04b8c814 361#define BTUSB_RESET_RESUME 10
9d08f504 362#define BTUSB_DIAG_RUNNING 11
5e23b923
MH		 363
364struct btusb_data {
365 struct hci_dev *hdev;
366 struct usb_device *udev;
5fbcd260 367 struct usb_interface *intf;
9bfa35fe 368 struct usb_interface *isoc;
9d08f504 369 struct usb_interface *diag;
5e23b923 370
5e23b923
MH		 371 unsigned long flags;
372
373 struct work_struct work;
7bee549e 374 struct work_struct waker;
5e23b923 375
803b5836 376 struct usb_anchor deferred;
5e23b923 377 struct usb_anchor tx_anchor;
803b5836
MH		 378 int tx_in_flight;
379 spinlock_t txlock;
380
5e23b923
MH		 381 struct usb_anchor intr_anchor;
382 struct usb_anchor bulk_anchor;
9bfa35fe 383 struct usb_anchor isoc_anchor;
9d08f504 384 struct usb_anchor diag_anchor;
803b5836
MH		 385 spinlock_t rxlock;
386
387 struct sk_buff *evt_skb;
388 struct sk_buff *acl_skb;
389 struct sk_buff *sco_skb;
5e23b923
MH		 390
391 struct usb_endpoint_descriptor *intr_ep;
392 struct usb_endpoint_descriptor *bulk_tx_ep;
393 struct usb_endpoint_descriptor *bulk_rx_ep;
9bfa35fe
MH		 394 struct usb_endpoint_descriptor *isoc_tx_ep;
395 struct usb_endpoint_descriptor *isoc_rx_ep;
9d08f504
MH		 396 struct usb_endpoint_descriptor *diag_tx_ep;
397 struct usb_endpoint_descriptor *diag_rx_ep;
9bfa35fe 398
7a9d4020 399 __u8 cmdreq_type;
893ba544 400 __u8 cmdreq;
7a9d4020 401
43c2e57f 402 unsigned int sco_num;
9bfa35fe 403 int isoc_altsetting;
6a88adf2 404 int suspend_count;
2cbd3f5c 405
97307f51 406 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
2cbd3f5c 407 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
ace31982
KBYT		 408
409 int (*setup_on_usb)(struct hci_dev *hdev);
5e23b923
MH		 410};
411
803b5836
MH		 412static inline void btusb_free_frags(struct btusb_data *data)
413{
414 unsigned long flags;
415
416 spin_lock_irqsave(&data->rxlock, flags);
417
418 kfree_skb(data->evt_skb);
419 data->evt_skb = NULL;
420
421 kfree_skb(data->acl_skb);
422 data->acl_skb = NULL;
423
424 kfree_skb(data->sco_skb);
425 data->sco_skb = NULL;
426
427 spin_unlock_irqrestore(&data->rxlock, flags);
428}
429
1ffa4ad0
MH		 430static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
431{
803b5836
MH		 432 struct sk_buff *skb;
433 int err = 0;
434
435 spin_lock(&data->rxlock);
436 skb = data->evt_skb;
437
438 while (count) {
439 int len;
440
441 if (!skb) {
442 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
443 if (!skb) {
444 err = -ENOMEM;
445 break;
446 }
447
618e8bc2
MH		 448 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
449 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE;
803b5836
MH		 450 }
451
618e8bc2 452 len = min_t(uint, hci_skb_expect(skb), count);
803b5836
MH		 453 memcpy(skb_put(skb, len), buffer, len);
454
455 count -= len;
456 buffer += len;
618e8bc2 457 hci_skb_expect(skb) -= len;
803b5836
MH		 458
459 if (skb->len == HCI_EVENT_HDR_SIZE) {
460 /* Complete event header */
618e8bc2 461 hci_skb_expect(skb) = hci_event_hdr(skb)->plen;
803b5836 462
618e8bc2 463 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
803b5836
MH		 464 kfree_skb(skb);
465 skb = NULL;
466
467 err = -EILSEQ;
468 break;
469 }
470 }
471
618e8bc2 472 if (!hci_skb_expect(skb)) {
803b5836 473 /* Complete frame */
97307f51 474 data->recv_event(data->hdev, skb);
803b5836
MH		 475 skb = NULL;
476 }
477 }
478
479 data->evt_skb = skb;
480 spin_unlock(&data->rxlock);
481
482 return err;
1ffa4ad0
MH		 483}
484
485static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
486{
803b5836
MH		 487 struct sk_buff *skb;
488 int err = 0;
489
490 spin_lock(&data->rxlock);
491 skb = data->acl_skb;
492
493 while (count) {
494 int len;
495
496 if (!skb) {
497 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
498 if (!skb) {
499 err = -ENOMEM;
500 break;
501 }
502
618e8bc2
MH		 503 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT;
504 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE;
803b5836
MH		 505 }
506
618e8bc2 507 len = min_t(uint, hci_skb_expect(skb), count);
803b5836
MH		 508 memcpy(skb_put(skb, len), buffer, len);
509
510 count -= len;
511 buffer += len;
618e8bc2 512 hci_skb_expect(skb) -= len;
803b5836
MH		 513
514 if (skb->len == HCI_ACL_HDR_SIZE) {
515 __le16 dlen = hci_acl_hdr(skb)->dlen;
516
517 /* Complete ACL header */
618e8bc2 518 hci_skb_expect(skb) = __le16_to_cpu(dlen);
803b5836 519
618e8bc2 520 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
803b5836
MH		 521 kfree_skb(skb);
522 skb = NULL;
523
524 err = -EILSEQ;
525 break;
526 }
527 }
528
618e8bc2 529 if (!hci_skb_expect(skb)) {
803b5836
MH		 530 /* Complete frame */
531 hci_recv_frame(data->hdev, skb);
532 skb = NULL;
533 }
534 }
535
536 data->acl_skb = skb;
537 spin_unlock(&data->rxlock);
538
539 return err;
1ffa4ad0
MH		 540}
541
542static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
543{
803b5836
MH		 544 struct sk_buff *skb;
545 int err = 0;
546
547 spin_lock(&data->rxlock);
548 skb = data->sco_skb;
549
550 while (count) {
551 int len;
552
553 if (!skb) {
554 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
555 if (!skb) {
556 err = -ENOMEM;
557 break;
558 }
559
618e8bc2
MH		 560 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT;
561 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE;
803b5836
MH		 562 }
563
618e8bc2 564 len = min_t(uint, hci_skb_expect(skb), count);
803b5836
MH		 565 memcpy(skb_put(skb, len), buffer, len);
566
567 count -= len;
568 buffer += len;
618e8bc2 569 hci_skb_expect(skb) -= len;
803b5836
MH		 570
571 if (skb->len == HCI_SCO_HDR_SIZE) {
572 /* Complete SCO header */
618e8bc2 573 hci_skb_expect(skb) = hci_sco_hdr(skb)->dlen;
803b5836 574
618e8bc2 575 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
803b5836
MH		 576 kfree_skb(skb);
577 skb = NULL;
578
579 err = -EILSEQ;
580 break;
581 }
582 }
583
618e8bc2 584 if (!hci_skb_expect(skb)) {
803b5836
MH		 585 /* Complete frame */
586 hci_recv_frame(data->hdev, skb);
587 skb = NULL;
588 }
589 }
590
591 data->sco_skb = skb;
592 spin_unlock(&data->rxlock);
593
594 return err;
1ffa4ad0
MH		 595}
596
5e23b923
MH		 597static void btusb_intr_complete(struct urb *urb)
598{
599 struct hci_dev *hdev = urb->context;
155961e8 600 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 601 int err;
602
89e7533d
MH		 603 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
604 urb->actual_length);
5e23b923
MH		 605
606 if (!test_bit(HCI_RUNNING, &hdev->flags))
607 return;
608
609 if (urb->status == 0) {
9bfa35fe
MH		 610 hdev->stat.byte_rx += urb->actual_length;
611
1ffa4ad0
MH		 612 if (btusb_recv_intr(data, urb->transfer_buffer,
613 urb->actual_length) < 0) {
5e23b923
MH		 614 BT_ERR("%s corrupted event packet", hdev->name);
615 hdev->stat.err_rx++;
616 }
85560c4a
CC		 617 } else if (urb->status == -ENOENT) {
618 /* Avoid suspend failed when usb_kill_urb */
619 return;
5e23b923
MH		 620 }
621
622 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
623 return;
624
7bee549e 625 usb_mark_last_busy(data->udev);
5e23b923
MH		 626 usb_anchor_urb(urb, &data->intr_anchor);
627
628 err = usb_submit_urb(urb, GFP_ATOMIC);
629 if (err < 0) {
4935f1c1
PB		 630 /* -EPERM: urb is being killed;
631 * -ENODEV: device got disconnected */
632 if (err != -EPERM && err != -ENODEV)
61faddf6 633 BT_ERR("%s urb %p failed to resubmit (%d)",
89e7533d 634 hdev->name, urb, -err);
5e23b923
MH		 635 usb_unanchor_urb(urb);
636 }
637}
638
2eda66f4 639static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
5e23b923 640{
155961e8 641 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 642 struct urb *urb;
643 unsigned char *buf;
644 unsigned int pipe;
645 int err, size;
646
647 BT_DBG("%s", hdev->name);
648
9bfa35fe
MH		 649 if (!data->intr_ep)
650 return -ENODEV;
651
2eda66f4 652 urb = usb_alloc_urb(0, mem_flags);
5e23b923
MH		 653 if (!urb)
654 return -ENOMEM;
655
656 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
657
2eda66f4 658 buf = kmalloc(size, mem_flags);
5e23b923
MH		 659 if (!buf) {
660 usb_free_urb(urb);
661 return -ENOMEM;
662 }
663
664 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
665
666 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
89e7533d 667 btusb_intr_complete, hdev, data->intr_ep->bInterval);
5e23b923
MH		 668
669 urb->transfer_flags |= URB_FREE_BUFFER;
670
671 usb_anchor_urb(urb, &data->intr_anchor);
672
2eda66f4 673 err = usb_submit_urb(urb, mem_flags);
5e23b923 674 if (err < 0) {
d4b8d1c9
PB		 675 if (err != -EPERM && err != -ENODEV)
676 BT_ERR("%s urb %p submission failed (%d)",
89e7533d 677 hdev->name, urb, -err);
5e23b923 678 usb_unanchor_urb(urb);
5e23b923
MH		 679 }
680
681 usb_free_urb(urb);
682
683 return err;
684}
685
686static void btusb_bulk_complete(struct urb *urb)
687{
688 struct hci_dev *hdev = urb->context;
155961e8 689 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 690 int err;
691
89e7533d
MH		 692 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
693 urb->actual_length);
5e23b923
MH		 694
695 if (!test_bit(HCI_RUNNING, &hdev->flags))
696 return;
697
698 if (urb->status == 0) {
9bfa35fe
MH		 699 hdev->stat.byte_rx += urb->actual_length;
700
2cbd3f5c 701 if (data->recv_bulk(data, urb->transfer_buffer,
1ffa4ad0 702 urb->actual_length) < 0) {
5e23b923
MH		 703 BT_ERR("%s corrupted ACL packet", hdev->name);
704 hdev->stat.err_rx++;
705 }
85560c4a
CC		 706 } else if (urb->status == -ENOENT) {
707 /* Avoid suspend failed when usb_kill_urb */
708 return;
5e23b923
MH		 709 }
710
711 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
712 return;
713
714 usb_anchor_urb(urb, &data->bulk_anchor);
652fd781 715 usb_mark_last_busy(data->udev);
5e23b923
MH		 716
717 err = usb_submit_urb(urb, GFP_ATOMIC);
718 if (err < 0) {
4935f1c1
PB		 719 /* -EPERM: urb is being killed;
720 * -ENODEV: device got disconnected */
721 if (err != -EPERM && err != -ENODEV)
61faddf6 722 BT_ERR("%s urb %p failed to resubmit (%d)",
89e7533d 723 hdev->name, urb, -err);
5e23b923
MH		 724 usb_unanchor_urb(urb);
725 }
726}
727
2eda66f4 728static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
5e23b923 729{
155961e8 730 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 731 struct urb *urb;
732 unsigned char *buf;
733 unsigned int pipe;
290ba200 734 int err, size = HCI_MAX_FRAME_SIZE;
5e23b923
MH		 735
736 BT_DBG("%s", hdev->name);
737
9bfa35fe
MH		 738 if (!data->bulk_rx_ep)
739 return -ENODEV;
740
2eda66f4 741 urb = usb_alloc_urb(0, mem_flags);
5e23b923
MH		 742 if (!urb)
743 return -ENOMEM;
744
2eda66f4 745 buf = kmalloc(size, mem_flags);
5e23b923
MH		 746 if (!buf) {
747 usb_free_urb(urb);
748 return -ENOMEM;
749 }
750
751 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
752
89e7533d
MH		 753 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
754 btusb_bulk_complete, hdev);
5e23b923
MH		 755
756 urb->transfer_flags |= URB_FREE_BUFFER;
757
7bee549e 758 usb_mark_last_busy(data->udev);
5e23b923
MH		 759 usb_anchor_urb(urb, &data->bulk_anchor);
760
2eda66f4 761 err = usb_submit_urb(urb, mem_flags);
5e23b923 762 if (err < 0) {
d4b8d1c9
PB		 763 if (err != -EPERM && err != -ENODEV)
764 BT_ERR("%s urb %p submission failed (%d)",
89e7533d 765 hdev->name, urb, -err);
5e23b923 766 usb_unanchor_urb(urb);
5e23b923
MH		 767 }
768
769 usb_free_urb(urb);
770
771 return err;
772}
773
9bfa35fe
MH		 774static void btusb_isoc_complete(struct urb *urb)
775{
776 struct hci_dev *hdev = urb->context;
155961e8 777 struct btusb_data *data = hci_get_drvdata(hdev);
9bfa35fe
MH		 778 int i, err;
779
89e7533d
MH		 780 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
781 urb->actual_length);
9bfa35fe
MH		 782
783 if (!test_bit(HCI_RUNNING, &hdev->flags))
784 return;
785
786 if (urb->status == 0) {
787 for (i = 0; i < urb->number_of_packets; i++) {
788 unsigned int offset = urb->iso_frame_desc[i].offset;
789 unsigned int length = urb->iso_frame_desc[i].actual_length;
790
791 if (urb->iso_frame_desc[i].status)
792 continue;
793
794 hdev->stat.byte_rx += length;
795
1ffa4ad0
MH		 796 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
797 length) < 0) {
9bfa35fe
MH		 798 BT_ERR("%s corrupted SCO packet", hdev->name);
799 hdev->stat.err_rx++;
800 }
801 }
85560c4a
CC		 802 } else if (urb->status == -ENOENT) {
803 /* Avoid suspend failed when usb_kill_urb */
804 return;
9bfa35fe
MH		 805 }
806
807 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
808 return;
809
810 usb_anchor_urb(urb, &data->isoc_anchor);
811
812 err = usb_submit_urb(urb, GFP_ATOMIC);
813 if (err < 0) {
4935f1c1
PB		 814 /* -EPERM: urb is being killed;
815 * -ENODEV: device got disconnected */
816 if (err != -EPERM && err != -ENODEV)
61faddf6 817 BT_ERR("%s urb %p failed to resubmit (%d)",
89e7533d 818 hdev->name, urb, -err);
9bfa35fe
MH		 819 usb_unanchor_urb(urb);
820 }
821}
822
42b16b3f 823static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
9bfa35fe
MH		 824{
825 int i, offset = 0;
826
827 BT_DBG("len %d mtu %d", len, mtu);
828
829 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
830 i++, offset += mtu, len -= mtu) {
831 urb->iso_frame_desc[i].offset = offset;
832 urb->iso_frame_desc[i].length = mtu;
833 }
834
835 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
836 urb->iso_frame_desc[i].offset = offset;
837 urb->iso_frame_desc[i].length = len;
838 i++;
839 }
840
841 urb->number_of_packets = i;
842}
843
2eda66f4 844static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
9bfa35fe 845{
155961e8 846 struct btusb_data *data = hci_get_drvdata(hdev);
9bfa35fe
MH		 847 struct urb *urb;
848 unsigned char *buf;
849 unsigned int pipe;
850 int err, size;
851
852 BT_DBG("%s", hdev->name);
853
854 if (!data->isoc_rx_ep)
855 return -ENODEV;
856
2eda66f4 857 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
9bfa35fe
MH		 858 if (!urb)
859 return -ENOMEM;
860
861 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
862 BTUSB_MAX_ISOC_FRAMES;
863
2eda66f4 864 buf = kmalloc(size, mem_flags);
9bfa35fe
MH		 865 if (!buf) {
866 usb_free_urb(urb);
867 return -ENOMEM;
868 }
869
870 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
871
fa0fb93f 872 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
89e7533d 873 hdev, data->isoc_rx_ep->bInterval);
9bfa35fe 874
89e7533d 875 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
9bfa35fe
MH		 876
877 __fill_isoc_descriptor(urb, size,
89e7533d 878 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
9bfa35fe
MH		 879
880 usb_anchor_urb(urb, &data->isoc_anchor);
881
2eda66f4 882 err = usb_submit_urb(urb, mem_flags);
9bfa35fe 883 if (err < 0) {
d4b8d1c9
PB		 884 if (err != -EPERM && err != -ENODEV)
885 BT_ERR("%s urb %p submission failed (%d)",
89e7533d 886 hdev->name, urb, -err);
9bfa35fe 887 usb_unanchor_urb(urb);
9bfa35fe
MH		 888 }
889
890 usb_free_urb(urb);
891
892 return err;
893}
894
9d08f504
MH		 895static void btusb_diag_complete(struct urb *urb)
896{
897 struct hci_dev *hdev = urb->context;
898 struct btusb_data *data = hci_get_drvdata(hdev);
899 int err;
900
901 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
902 urb->actual_length);
903
904 if (urb->status == 0) {
905 struct sk_buff *skb;
906
907 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC);
908 if (skb) {
909 memcpy(skb_put(skb, urb->actual_length),
910 urb->transfer_buffer, urb->actual_length);
911 hci_recv_diag(hdev, skb);
912 }
913 } else if (urb->status == -ENOENT) {
914 /* Avoid suspend failed when usb_kill_urb */
915 return;
916 }
917
918 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags))
919 return;
920
921 usb_anchor_urb(urb, &data->diag_anchor);
922 usb_mark_last_busy(data->udev);
923
924 err = usb_submit_urb(urb, GFP_ATOMIC);
925 if (err < 0) {
926 /* -EPERM: urb is being killed;
927 * -ENODEV: device got disconnected */
928 if (err != -EPERM && err != -ENODEV)
929 BT_ERR("%s urb %p failed to resubmit (%d)",
930 hdev->name, urb, -err);
931 usb_unanchor_urb(urb);
932 }
933}
934
935static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags)
936{
937 struct btusb_data *data = hci_get_drvdata(hdev);
938 struct urb *urb;
939 unsigned char *buf;
940 unsigned int pipe;
941 int err, size = HCI_MAX_FRAME_SIZE;
942
943 BT_DBG("%s", hdev->name);
944
945 if (!data->diag_rx_ep)
946 return -ENODEV;
947
948 urb = usb_alloc_urb(0, mem_flags);
949 if (!urb)
950 return -ENOMEM;
951
952 buf = kmalloc(size, mem_flags);
953 if (!buf) {
954 usb_free_urb(urb);
955 return -ENOMEM;
956 }
957
958 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress);
959
960 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
961 btusb_diag_complete, hdev);
962
963 urb->transfer_flags |= URB_FREE_BUFFER;
964
965 usb_mark_last_busy(data->udev);
966 usb_anchor_urb(urb, &data->diag_anchor);
967
968 err = usb_submit_urb(urb, mem_flags);
969 if (err < 0) {
970 if (err != -EPERM && err != -ENODEV)
971 BT_ERR("%s urb %p submission failed (%d)",
972 hdev->name, urb, -err);
973 usb_unanchor_urb(urb);
974 }
975
976 usb_free_urb(urb);
977
978 return err;
979}
980
5e23b923 981static void btusb_tx_complete(struct urb *urb)
7bee549e
ON		 982{
983 struct sk_buff *skb = urb->context;
89e7533d 984 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
155961e8 985 struct btusb_data *data = hci_get_drvdata(hdev);
7bee549e 986
89e7533d
MH		 987 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
988 urb->actual_length);
7bee549e
ON		 989
990 if (!test_bit(HCI_RUNNING, &hdev->flags))
991 goto done;
992
993 if (!urb->status)
994 hdev->stat.byte_tx += urb->transfer_buffer_length;
995 else
996 hdev->stat.err_tx++;
997
998done:
999 spin_lock(&data->txlock);
1000 data->tx_in_flight--;
1001 spin_unlock(&data->txlock);
1002
1003 kfree(urb->setup_packet);
1004
1005 kfree_skb(skb);
1006}
1007
1008static void btusb_isoc_tx_complete(struct urb *urb)
5e23b923
MH		 1009{
1010 struct sk_buff *skb = urb->context;
89e7533d 1011 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
5e23b923 1012
89e7533d
MH		 1013 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1014 urb->actual_length);
5e23b923
MH		 1015
1016 if (!test_bit(HCI_RUNNING, &hdev->flags))
1017 goto done;
1018
1019 if (!urb->status)
1020 hdev->stat.byte_tx += urb->transfer_buffer_length;
1021 else
1022 hdev->stat.err_tx++;
1023
1024done:
1025 kfree(urb->setup_packet);
1026
1027 kfree_skb(skb);
1028}
1029
1030static int btusb_open(struct hci_dev *hdev)
1031{
155961e8 1032 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 1033 int err;
1034
1035 BT_DBG("%s", hdev->name);
1036
ace31982
KBYT		 1037 /* Patching USB firmware files prior to starting any URBs of HCI path
1038 * It is more safe to use USB bulk channel for downloading USB patch
1039 */
1040 if (data->setup_on_usb) {
1041 err = data->setup_on_usb(hdev);
eb50042f 1042 if (err < 0)
ace31982
KBYT		 1043 return err;
1044 }
1045
7bee549e
ON		 1046 err = usb_autopm_get_interface(data->intf);
1047 if (err < 0)
1048 return err;
1049
1050 data->intf->needs_remote_wakeup = 1;
1051
5e23b923 1052 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
7bee549e 1053 goto done;
5e23b923 1054
2eda66f4 1055 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
43c2e57f
MH		 1056 if (err < 0)
1057 goto failed;
1058
1059 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
5e23b923 1060 if (err < 0) {
43c2e57f
MH		 1061 usb_kill_anchored_urbs(&data->intr_anchor);
1062 goto failed;
5e23b923
MH		 1063 }
1064
43c2e57f
MH		 1065 set_bit(BTUSB_BULK_RUNNING, &data->flags);
1066 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1067
9d08f504
MH		 1068 if (data->diag) {
1069 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL))
1070 set_bit(BTUSB_DIAG_RUNNING, &data->flags);
1071 }
1072
7bee549e
ON		 1073done:
1074 usb_autopm_put_interface(data->intf);
43c2e57f
MH		 1075 return 0;
1076
1077failed:
1078 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
7bee549e 1079 usb_autopm_put_interface(data->intf);
5e23b923
MH		 1080 return err;
1081}
1082
7bee549e
ON		 1083static void btusb_stop_traffic(struct btusb_data *data)
1084{
1085 usb_kill_anchored_urbs(&data->intr_anchor);
1086 usb_kill_anchored_urbs(&data->bulk_anchor);
1087 usb_kill_anchored_urbs(&data->isoc_anchor);
9d08f504 1088 usb_kill_anchored_urbs(&data->diag_anchor);
7bee549e
ON		 1089}
1090
5e23b923
MH		 1091static int btusb_close(struct hci_dev *hdev)
1092{
155961e8 1093 struct btusb_data *data = hci_get_drvdata(hdev);
7bee549e 1094 int err;
5e23b923
MH		 1095
1096 BT_DBG("%s", hdev->name);
1097
e8c3c3d2 1098 cancel_work_sync(&data->work);
404291ac 1099 cancel_work_sync(&data->waker);
e8c3c3d2 1100
9bfa35fe 1101 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
5e23b923 1102 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
5e23b923 1103 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
9d08f504 1104 clear_bit(BTUSB_DIAG_RUNNING, &data->flags);
7bee549e
ON		 1105
1106 btusb_stop_traffic(data);
803b5836
MH		 1107 btusb_free_frags(data);
1108
7bee549e
ON		 1109 err = usb_autopm_get_interface(data->intf);
1110 if (err < 0)
7b8e2c1d 1111 goto failed;
7bee549e
ON		 1112
1113 data->intf->needs_remote_wakeup = 0;
1114 usb_autopm_put_interface(data->intf);
5e23b923 1115
7b8e2c1d
ON		 1116failed:
1117 usb_scuttle_anchored_urbs(&data->deferred);
5e23b923
MH		 1118 return 0;
1119}
1120
1121static int btusb_flush(struct hci_dev *hdev)
1122{
155961e8 1123 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 1124
1125 BT_DBG("%s", hdev->name);
1126
1127 usb_kill_anchored_urbs(&data->tx_anchor);
803b5836 1128 btusb_free_frags(data);
5e23b923
MH		 1129
1130 return 0;
1131}
1132
047b2ec8 1133static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
5e23b923 1134{
155961e8 1135 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 1136 struct usb_ctrlrequest *dr;
1137 struct urb *urb;
1138 unsigned int pipe;
5e23b923 1139
047b2ec8
MH		 1140 urb = usb_alloc_urb(0, GFP_KERNEL);
1141 if (!urb)
1142 return ERR_PTR(-ENOMEM);
5e23b923 1143
047b2ec8
MH		 1144 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
1145 if (!dr) {
1146 usb_free_urb(urb);
1147 return ERR_PTR(-ENOMEM);
1148 }
5e23b923 1149
047b2ec8 1150 dr->bRequestType = data->cmdreq_type;
893ba544 1151 dr->bRequest = data->cmdreq;
047b2ec8
MH		 1152 dr->wIndex = 0;
1153 dr->wValue = 0;
1154 dr->wLength = __cpu_to_le16(skb->len);
7bd8f09f 1155
047b2ec8 1156 pipe = usb_sndctrlpipe(data->udev, 0x00);
5e23b923 1157
89e7533d 1158 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
047b2ec8 1159 skb->data, skb->len, btusb_tx_complete, skb);
5e23b923 1160
89e7533d 1161 skb->dev = (void *)hdev;
5e23b923 1162
047b2ec8
MH		 1163 return urb;
1164}
5e23b923 1165
047b2ec8
MH		 1166static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
1167{
1168 struct btusb_data *data = hci_get_drvdata(hdev);
1169 struct urb *urb;
1170 unsigned int pipe;
5e23b923 1171
047b2ec8
MH		 1172 if (!data->bulk_tx_ep)
1173 return ERR_PTR(-ENODEV);
9bfa35fe 1174
047b2ec8
MH		 1175 urb = usb_alloc_urb(0, GFP_KERNEL);
1176 if (!urb)
1177 return ERR_PTR(-ENOMEM);
5e23b923 1178
047b2ec8 1179 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
5e23b923 1180
047b2ec8
MH		 1181 usb_fill_bulk_urb(urb, data->udev, pipe,
1182 skb->data, skb->len, btusb_tx_complete, skb);
5e23b923 1183
89e7533d 1184 skb->dev = (void *)hdev;
5e23b923 1185
047b2ec8
MH		 1186 return urb;
1187}
9bfa35fe 1188
047b2ec8
MH		 1189static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
1190{
1191 struct btusb_data *data = hci_get_drvdata(hdev);
1192 struct urb *urb;
1193 unsigned int pipe;
9bfa35fe 1194
047b2ec8
MH		 1195 if (!data->isoc_tx_ep)
1196 return ERR_PTR(-ENODEV);
9bfa35fe 1197
047b2ec8
MH		 1198 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
1199 if (!urb)
1200 return ERR_PTR(-ENOMEM);
9bfa35fe 1201
047b2ec8 1202 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
9bfa35fe 1203
047b2ec8
MH		 1204 usb_fill_int_urb(urb, data->udev, pipe,
1205 skb->data, skb->len, btusb_isoc_tx_complete,
1206 skb, data->isoc_tx_ep->bInterval);
9bfa35fe 1207
047b2ec8 1208 urb->transfer_flags = URB_ISO_ASAP;
5e23b923 1209
047b2ec8
MH		 1210 __fill_isoc_descriptor(urb, skb->len,
1211 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
5e23b923 1212
89e7533d 1213 skb->dev = (void *)hdev;
047b2ec8
MH		 1214
1215 return urb;
1216}
1217
1218static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
1219{
1220 struct btusb_data *data = hci_get_drvdata(hdev);
1221 int err;
7bee549e 1222
5e23b923
MH		 1223 usb_anchor_urb(urb, &data->tx_anchor);
1224
e9753eff 1225 err = usb_submit_urb(urb, GFP_KERNEL);
5e23b923 1226 if (err < 0) {
5a9b80e2
PB		 1227 if (err != -EPERM && err != -ENODEV)
1228 BT_ERR("%s urb %p submission failed (%d)",
89e7533d 1229 hdev->name, urb, -err);
5e23b923
MH		 1230 kfree(urb->setup_packet);
1231 usb_unanchor_urb(urb);
7bee549e
ON		 1232 } else {
1233 usb_mark_last_busy(data->udev);
5e23b923
MH		 1234 }
1235
54a8a79c 1236 usb_free_urb(urb);
5e23b923
MH		 1237 return err;
1238}
1239
047b2ec8
MH		 1240static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
1241{
1242 struct btusb_data *data = hci_get_drvdata(hdev);
1243 unsigned long flags;
1244 bool suspending;
1245
1246 spin_lock_irqsave(&data->txlock, flags);
1247 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
1248 if (!suspending)
1249 data->tx_in_flight++;
1250 spin_unlock_irqrestore(&data->txlock, flags);
1251
1252 if (!suspending)
1253 return submit_tx_urb(hdev, urb);
1254
1255 usb_anchor_urb(urb, &data->deferred);
1256 schedule_work(&data->waker);
1257
1258 usb_free_urb(urb);
1259 return 0;
1260}
1261
1262static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
1263{
1264 struct urb *urb;
1265
1266 BT_DBG("%s", hdev->name);
1267
618e8bc2 1268 switch (hci_skb_pkt_type(skb)) {
047b2ec8
MH		 1269 case HCI_COMMAND_PKT:
1270 urb = alloc_ctrl_urb(hdev, skb);
1271 if (IS_ERR(urb))
1272 return PTR_ERR(urb);
1273
1274 hdev->stat.cmd_tx++;
1275 return submit_or_queue_tx_urb(hdev, urb);
1276
1277 case HCI_ACLDATA_PKT:
1278 urb = alloc_bulk_urb(hdev, skb);
1279 if (IS_ERR(urb))
1280 return PTR_ERR(urb);
1281
1282 hdev->stat.acl_tx++;
1283 return submit_or_queue_tx_urb(hdev, urb);
1284
1285 case HCI_SCODATA_PKT:
1286 if (hci_conn_num(hdev, SCO_LINK) < 1)
1287 return -ENODEV;
1288
1289 urb = alloc_isoc_urb(hdev, skb);
1290 if (IS_ERR(urb))
1291 return PTR_ERR(urb);
1292
1293 hdev->stat.sco_tx++;
1294 return submit_tx_urb(hdev, urb);
1295 }
1296
1297 return -EILSEQ;
1298}
1299
5e23b923
MH		 1300static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
1301{
155961e8 1302 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 1303
1304 BT_DBG("%s evt %d", hdev->name, evt);
1305
014f7bc7
MH		 1306 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
1307 data->sco_num = hci_conn_num(hdev, SCO_LINK);
43c2e57f 1308 schedule_work(&data->work);
a780efa8 1309 }
5e23b923
MH		 1310}
1311
42b16b3f 1312static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
9bfa35fe 1313{
155961e8 1314 struct btusb_data *data = hci_get_drvdata(hdev);
9bfa35fe
MH		 1315 struct usb_interface *intf = data->isoc;
1316 struct usb_endpoint_descriptor *ep_desc;
1317 int i, err;
1318
1319 if (!data->isoc)
1320 return -ENODEV;
1321
1322 err = usb_set_interface(data->udev, 1, altsetting);
1323 if (err < 0) {
1324 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
1325 return err;
1326 }
1327
1328 data->isoc_altsetting = altsetting;
1329
1330 data->isoc_tx_ep = NULL;
1331 data->isoc_rx_ep = NULL;
1332
1333 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1334 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1335
1336 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
1337 data->isoc_tx_ep = ep_desc;
1338 continue;
1339 }
1340
1341 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
1342 data->isoc_rx_ep = ep_desc;
1343 continue;
1344 }
1345 }
1346
1347 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
1348 BT_ERR("%s invalid SCO descriptors", hdev->name);
1349 return -ENODEV;
1350 }
1351
1352 return 0;
1353}
1354
5e23b923
MH		 1355static void btusb_work(struct work_struct *work)
1356{
1357 struct btusb_data *data = container_of(work, struct btusb_data, work);
1358 struct hci_dev *hdev = data->hdev;
f4001d28 1359 int new_alts;
7bee549e 1360 int err;
5e23b923 1361
014f7bc7 1362 if (data->sco_num > 0) {
08b8b6c4 1363 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
8efdd0cd 1364 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
7bee549e
ON		 1365 if (err < 0) {
1366 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1367 usb_kill_anchored_urbs(&data->isoc_anchor);
1368 return;
1369 }
1370
08b8b6c4 1371 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
7bee549e 1372 }
f4001d28
MA		 1373
1374 if (hdev->voice_setting & 0x0020) {
1375 static const int alts[3] = { 2, 4, 5 };
89e7533d 1376
014f7bc7 1377 new_alts = alts[data->sco_num - 1];
f4001d28 1378 } else {
014f7bc7 1379 new_alts = data->sco_num;
f4001d28
MA		 1380 }
1381
1382 if (data->isoc_altsetting != new_alts) {
f6fc86f2
KP		 1383 unsigned long flags;
1384
9bfa35fe
MH		 1385 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1386 usb_kill_anchored_urbs(&data->isoc_anchor);
1387
8f9d02f4
KP		 1388 /* When isochronous alternate setting needs to be
1389 * changed, because SCO connection has been added
1390 * or removed, a packet fragment may be left in the
1391 * reassembling state. This could lead to wrongly
1392 * assembled fragments.
1393 *
1394 * Clear outstanding fragment when selecting a new
1395 * alternate setting.
1396 */
f6fc86f2 1397 spin_lock_irqsave(&data->rxlock, flags);
8f9d02f4
KP		 1398 kfree_skb(data->sco_skb);
1399 data->sco_skb = NULL;
f6fc86f2 1400 spin_unlock_irqrestore(&data->rxlock, flags);
8f9d02f4 1401
f4001d28 1402 if (__set_isoc_interface(hdev, new_alts) < 0)
9bfa35fe
MH		 1403 return;
1404 }
1405
1406 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2eda66f4 1407 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
9bfa35fe
MH		 1408 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1409 else
2eda66f4 1410 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
9bfa35fe
MH		 1411 }
1412 } else {
1413 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1414 usb_kill_anchored_urbs(&data->isoc_anchor);
1415
1416 __set_isoc_interface(hdev, 0);
08b8b6c4 1417 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
8efdd0cd 1418 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
5e23b923
MH		 1419 }
1420}
1421
7bee549e
ON		 1422static void btusb_waker(struct work_struct *work)
1423{
1424 struct btusb_data *data = container_of(work, struct btusb_data, waker);
1425 int err;
1426
1427 err = usb_autopm_get_interface(data->intf);
1428 if (err < 0)
1429 return;
1430
1431 usb_autopm_put_interface(data->intf);
1432}
1433
9f8f962c
MH		 1434static int btusb_setup_bcm92035(struct hci_dev *hdev)
1435{
1436 struct sk_buff *skb;
1437 u8 val = 0x00;
1438
1439 BT_DBG("%s", hdev->name);
1440
1441 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
1442 if (IS_ERR(skb))
1443 BT_ERR("BCM92035 command failed (%ld)", -PTR_ERR(skb));
1444 else
1445 kfree_skb(skb);
1446
1447 return 0;
1448}
1449
81cac64b
MH		 1450static int btusb_setup_csr(struct hci_dev *hdev)
1451{
1452 struct hci_rp_read_local_version *rp;
1453 struct sk_buff *skb;
81cac64b
MH		 1454
1455 BT_DBG("%s", hdev->name);
1456
7cd84d72
MH		 1457 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1458 HCI_INIT_TIMEOUT);
1459 if (IS_ERR(skb)) {
1460 int err = PTR_ERR(skb);
1461 BT_ERR("%s: CSR: Local version failed (%d)", hdev->name, err);
1462 return err;
1463 }
1464
1465 if (skb->len != sizeof(struct hci_rp_read_local_version)) {
1466 BT_ERR("%s: CSR: Local version length mismatch", hdev->name);
1467 kfree_skb(skb);
1468 return -EIO;
1469 }
81cac64b 1470
89e7533d 1471 rp = (struct hci_rp_read_local_version *)skb->data;
81cac64b 1472
6cafcd95
JH		 1473 /* Detect controllers which aren't real CSR ones. */
1474 if (le16_to_cpu(rp->manufacturer) != 10 ||
1475 le16_to_cpu(rp->lmp_subver) == 0x0c5c) {
9641d343
MH		 1476 /* Clear the reset quirk since this is not an actual
1477 * early Bluetooth 1.1 device from CSR.
1478 */
1479 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
81cac64b 1480
9641d343
MH		 1481 /* These fake CSR controllers have all a broken
1482 * stored link key handling and so just disable it.
1483 */
1484 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
1485 }
81cac64b
MH		 1486
1487 kfree_skb(skb);
1488
9641d343 1489 return 0;
81cac64b
MH		 1490}
1491
dffd30ee 1492static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev,
89e7533d 1493 struct intel_version *ver)
dffd30ee
THJA		 1494{
1495 const struct firmware *fw;
1496 char fwname[64];
1497 int ret;
1498
1499 snprintf(fwname, sizeof(fwname),
1500 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq",
1501 ver->hw_platform, ver->hw_variant, ver->hw_revision,
1502 ver->fw_variant, ver->fw_revision, ver->fw_build_num,
1503 ver->fw_build_ww, ver->fw_build_yy);
1504
1505 ret = request_firmware(&fw, fwname, &hdev->dev);
1506 if (ret < 0) {
1507 if (ret == -EINVAL) {
1508 BT_ERR("%s Intel firmware file request failed (%d)",
1509 hdev->name, ret);
1510 return NULL;
1511 }
1512
1513 BT_ERR("%s failed to open Intel firmware file: %s(%d)",
1514 hdev->name, fwname, ret);
1515
1516 /* If the correct firmware patch file is not found, use the
1517 * default firmware patch file instead
1518 */
1519 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq",
1520 ver->hw_platform, ver->hw_variant);
1521 if (request_firmware(&fw, fwname, &hdev->dev) < 0) {
1522 BT_ERR("%s failed to open default Intel fw file: %s",
1523 hdev->name, fwname);
1524 return NULL;
1525 }
1526 }
1527
1528 BT_INFO("%s: Intel Bluetooth firmware file: %s", hdev->name, fwname);
1529
1530 return fw;
1531}
1532
1533static int btusb_setup_intel_patching(struct hci_dev *hdev,
1534 const struct firmware *fw,
1535 const u8 **fw_ptr, int *disable_patch)
1536{
1537 struct sk_buff *skb;
1538 struct hci_command_hdr *cmd;
1539 const u8 *cmd_param;
1540 struct hci_event_hdr *evt = NULL;
1541 const u8 *evt_param = NULL;
1542 int remain = fw->size - (*fw_ptr - fw->data);
1543
1544 /* The first byte indicates the types of the patch command or event.
1545 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes
1546 * in the current firmware buffer doesn't start with 0x01 or
1547 * the size of remain buffer is smaller than HCI command header,
1548 * the firmware file is corrupted and it should stop the patching
1549 * process.
1550 */
1551 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) {
1552 BT_ERR("%s Intel fw corrupted: invalid cmd read", hdev->name);
1553 return -EINVAL;
1554 }
1555 (*fw_ptr)++;
1556 remain--;
1557
1558 cmd = (struct hci_command_hdr *)(*fw_ptr);
1559 *fw_ptr += sizeof(*cmd);
1560 remain -= sizeof(*cmd);
1561
1562 /* Ensure that the remain firmware data is long enough than the length
1563 * of command parameter. If not, the firmware file is corrupted.
1564 */
1565 if (remain < cmd->plen) {
1566 BT_ERR("%s Intel fw corrupted: invalid cmd len", hdev->name);
1567 return -EFAULT;
1568 }
1569
1570 /* If there is a command that loads a patch in the firmware
1571 * file, then enable the patch upon success, otherwise just
1572 * disable the manufacturer mode, for example patch activation
1573 * is not required when the default firmware patch file is used
1574 * because there are no patch data to load.
1575 */
1576 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e)
1577 *disable_patch = 0;
1578
1579 cmd_param = *fw_ptr;
1580 *fw_ptr += cmd->plen;
1581 remain -= cmd->plen;
1582
1583 /* This reads the expected events when the above command is sent to the
1584 * device. Some vendor commands expects more than one events, for
1585 * example command status event followed by vendor specific event.
1586 * For this case, it only keeps the last expected event. so the command
1587 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of
1588 * last expected event.
1589 */
1590 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) {
1591 (*fw_ptr)++;
1592 remain--;
1593
1594 evt = (struct hci_event_hdr *)(*fw_ptr);
1595 *fw_ptr += sizeof(*evt);
1596 remain -= sizeof(*evt);
1597
1598 if (remain < evt->plen) {
1599 BT_ERR("%s Intel fw corrupted: invalid evt len",
1600 hdev->name);
1601 return -EFAULT;
1602 }
1603
1604 evt_param = *fw_ptr;
1605 *fw_ptr += evt->plen;
1606 remain -= evt->plen;
1607 }
1608
1609 /* Every HCI commands in the firmware file has its correspond event.
1610 * If event is not found or remain is smaller than zero, the firmware
1611 * file is corrupted.
1612 */
1613 if (!evt || !evt_param || remain < 0) {
1614 BT_ERR("%s Intel fw corrupted: invalid evt read", hdev->name);
1615 return -EFAULT;
1616 }
1617
1618 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen,
1619 cmd_param, evt->evt, HCI_INIT_TIMEOUT);
1620 if (IS_ERR(skb)) {
1621 BT_ERR("%s sending Intel patch command (0x%4.4x) failed (%ld)",
1622 hdev->name, cmd->opcode, PTR_ERR(skb));
d9c78e97 1623 return PTR_ERR(skb);
dffd30ee
THJA		 1624 }
1625
1626 /* It ensures that the returned event matches the event data read from
1627 * the firmware file. At fist, it checks the length and then
1628 * the contents of the event.
1629 */
1630 if (skb->len != evt->plen) {
1631 BT_ERR("%s mismatch event length (opcode 0x%4.4x)", hdev->name,
1632 le16_to_cpu(cmd->opcode));
1633 kfree_skb(skb);
1634 return -EFAULT;
1635 }
1636
1637 if (memcmp(skb->data, evt_param, evt->plen)) {
1638 BT_ERR("%s mismatch event parameter (opcode 0x%4.4x)",
1639 hdev->name, le16_to_cpu(cmd->opcode));
1640 kfree_skb(skb);
1641 return -EFAULT;
1642 }
1643 kfree_skb(skb);
1644
1645 return 0;
1646}
1647
1648static int btusb_setup_intel(struct hci_dev *hdev)
1649{
1650 struct sk_buff *skb;
1651 const struct firmware *fw;
1652 const u8 *fw_ptr;
28dc4b92 1653 int disable_patch, err;
6c483de1 1654 struct intel_version ver;
dffd30ee 1655
dffd30ee
THJA		 1656 BT_DBG("%s", hdev->name);
1657
1658 /* The controller has a bug with the first HCI command sent to it
1659 * returning number of completed commands as zero. This would stall the
1660 * command processing in the Bluetooth core.
1661 *
1662 * As a workaround, send HCI Reset command first which will reset the
1663 * number of completed commands and allow normal command processing
1664 * from now on.
1665 */
1666 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1667 if (IS_ERR(skb)) {
1668 BT_ERR("%s sending initial HCI reset command failed (%ld)",
1669 hdev->name, PTR_ERR(skb));
d9c78e97 1670 return PTR_ERR(skb);
dffd30ee
THJA		 1671 }
1672 kfree_skb(skb);
1673
1674 /* Read Intel specific controller version first to allow selection of
1675 * which firmware file to load.
1676 *
1677 * The returned information are hardware variant and revision plus
1678 * firmware variant, revision and build number.
1679 */
6c483de1
LP		 1680 err = btintel_read_version(hdev, &ver);
1681 if (err)
1682 return err;
dffd30ee
THJA		 1683
1684 BT_INFO("%s: read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
6c483de1
LP		 1685 hdev->name, ver.hw_platform, ver.hw_variant, ver.hw_revision,
1686 ver.fw_variant, ver.fw_revision, ver.fw_build_num,
1687 ver.fw_build_ww, ver.fw_build_yy, ver.fw_patch_num);
dffd30ee
THJA		 1688
1689 /* fw_patch_num indicates the version of patch the device currently
1690 * have. If there is no patch data in the device, it is always 0x00.
5075edae 1691 * So, if it is other than 0x00, no need to patch the device again.
dffd30ee 1692 */
6c483de1 1693 if (ver.fw_patch_num) {
dffd30ee 1694 BT_INFO("%s: Intel device is already patched. patch num: %02x",
6c483de1 1695 hdev->name, ver.fw_patch_num);
213445b2 1696 goto complete;
dffd30ee
THJA		 1697 }
1698
1699 /* Opens the firmware patch file based on the firmware version read
1700 * from the controller. If it fails to open the matching firmware
1701 * patch file, it tries to open the default firmware patch file.
1702 * If no patch file is found, allow the device to operate without
1703 * a patch.
1704 */
6c483de1
LP		 1705 fw = btusb_setup_intel_get_fw(hdev, &ver);
1706 if (!fw)
213445b2 1707 goto complete;
dffd30ee
THJA		 1708 fw_ptr = fw->data;
1709
28dc4b92 1710 /* Enable the manufacturer mode of the controller.
dffd30ee
THJA		 1711 * Only while this mode is enabled, the driver can download the
1712 * firmware patch data and configuration parameters.
1713 */
28dc4b92
LP		 1714 err = btintel_enter_mfg(hdev);
1715 if (err) {
dffd30ee 1716 release_firmware(fw);
28dc4b92 1717 return err;
dffd30ee
THJA		 1718 }
1719
dffd30ee
THJA		 1720 disable_patch = 1;
1721
1722 /* The firmware data file consists of list of Intel specific HCI
1723 * commands and its expected events. The first byte indicates the
1724 * type of the message, either HCI command or HCI event.
1725 *
1726 * It reads the command and its expected event from the firmware file,
1727 * and send to the controller. Once __hci_cmd_sync_ev() returns,
1728 * the returned event is compared with the event read from the firmware
1729 * file and it will continue until all the messages are downloaded to
1730 * the controller.
1731 *
1732 * Once the firmware patching is completed successfully,
1733 * the manufacturer mode is disabled with reset and activating the
1734 * downloaded patch.
1735 *
1736 * If the firmware patching fails, the manufacturer mode is
1737 * disabled with reset and deactivating the patch.
1738 *
1739 * If the default patch file is used, no reset is done when disabling
1740 * the manufacturer.
1741 */
1742 while (fw->size > fw_ptr - fw->data) {
1743 int ret;
1744
1745 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr,
1746 &disable_patch);
1747 if (ret < 0)
1748 goto exit_mfg_deactivate;
1749 }
1750
1751 release_firmware(fw);
1752
1753 if (disable_patch)
1754 goto exit_mfg_disable;
1755
1756 /* Patching completed successfully and disable the manufacturer mode
1757 * with reset and activate the downloaded firmware patches.
1758 */
28dc4b92
LP		 1759 err = btintel_exit_mfg(hdev, true, true);
1760 if (err)
1761 return err;
dffd30ee
THJA		 1762
1763 BT_INFO("%s: Intel Bluetooth firmware patch completed and activated",
1764 hdev->name);
1765
213445b2 1766 goto complete;
dffd30ee
THJA		 1767
1768exit_mfg_disable:
1769 /* Disable the manufacturer mode without reset */
28dc4b92
LP		 1770 err = btintel_exit_mfg(hdev, false, false);
1771 if (err)
1772 return err;
dffd30ee
THJA		 1773
1774 BT_INFO("%s: Intel Bluetooth firmware patch completed", hdev->name);
40cb0984 1775
213445b2 1776 goto complete;
dffd30ee
THJA		 1777
1778exit_mfg_deactivate:
1779 release_firmware(fw);
1780
1781 /* Patching failed. Disable the manufacturer mode with reset and
1782 * deactivate the downloaded firmware patches.
1783 */
28dc4b92
LP		 1784 err = btintel_exit_mfg(hdev, true, false);
1785 if (err)
1786 return err;
dffd30ee
THJA		 1787
1788 BT_INFO("%s: Intel Bluetooth firmware patch completed and deactivated",
1789 hdev->name);
1790
213445b2
MH		 1791complete:
1792 /* Set the event mask for Intel specific vendor events. This enables
1793 * a few extra events that are useful during general operation.
1794 */
1795 btintel_set_event_mask_mfg(hdev, false);
1796
4185a0f5 1797 btintel_check_bdaddr(hdev);
dffd30ee
THJA		 1798 return 0;
1799}
1800
cda0dd78
MH		 1801static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
1802{
1803 struct sk_buff *skb;
1804 struct hci_event_hdr *hdr;
1805 struct hci_ev_cmd_complete *evt;
1806
1807 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_ATOMIC);
1808 if (!skb)
1809 return -ENOMEM;
1810
1811 hdr = (struct hci_event_hdr *)skb_put(skb, sizeof(*hdr));
1812 hdr->evt = HCI_EV_CMD_COMPLETE;
1813 hdr->plen = sizeof(*evt) + 1;
1814
1815 evt = (struct hci_ev_cmd_complete *)skb_put(skb, sizeof(*evt));
1816 evt->ncmd = 0x01;
1817 evt->opcode = cpu_to_le16(opcode);
1818
1819 *skb_put(skb, 1) = 0x00;
1820
618e8bc2 1821 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
cda0dd78
MH		 1822
1823 return hci_recv_frame(hdev, skb);
1824}
1825
1826static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
1827 int count)
1828{
1829 /* When the device is in bootloader mode, then it can send
1830 * events via the bulk endpoint. These events are treated the
1831 * same way as the ones received from the interrupt endpoint.
1832 */
1833 if (test_bit(BTUSB_BOOTLOADER, &data->flags))
1834 return btusb_recv_intr(data, buffer, count);
1835
1836 return btusb_recv_bulk(data, buffer, count);
1837}
1838
ccd6da2a
MH		 1839static void btusb_intel_bootup(struct btusb_data *data, const void *ptr,
1840 unsigned int len)
1841{
1842 const struct intel_bootup *evt = ptr;
1843
1844 if (len != sizeof(*evt))
1845 return;
1846
1847 if (test_and_clear_bit(BTUSB_BOOTING, &data->flags)) {
1848 smp_mb__after_atomic();
1849 wake_up_bit(&data->flags, BTUSB_BOOTING);
1850 }
1851}
1852
1853static void btusb_intel_secure_send_result(struct btusb_data *data,
1854 const void *ptr, unsigned int len)
1855{
1856 const struct intel_secure_send_result *evt = ptr;
1857
1858 if (len != sizeof(*evt))
1859 return;
1860
1861 if (evt->result)
1862 set_bit(BTUSB_FIRMWARE_FAILED, &data->flags);
1863
1864 if (test_and_clear_bit(BTUSB_DOWNLOADING, &data->flags) &&
1865 test_bit(BTUSB_FIRMWARE_LOADED, &data->flags)) {
1866 smp_mb__after_atomic();
1867 wake_up_bit(&data->flags, BTUSB_DOWNLOADING);
1868 }
1869}
1870
cda0dd78
MH		 1871static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb)
1872{
1873 struct btusb_data *data = hci_get_drvdata(hdev);
1874
1875 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
1876 struct hci_event_hdr *hdr = (void *)skb->data;
1877
ccd6da2a
MH		 1878 if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff &&
1879 hdr->plen > 0) {
1880 const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1;
1881 unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1;
1882
1883 switch (skb->data[2]) {
1884 case 0x02:
1885 /* When switching to the operational firmware
1886 * the device sends a vendor specific event
1887 * indicating that the bootup completed.
1888 */
1889 btusb_intel_bootup(data, ptr, len);
1890 break;
1891 case 0x06:
1892 /* When the firmware loading completes the
1893 * device sends out a vendor specific event
1894 * indicating the result of the firmware
1895 * loading.
1896 */
1897 btusb_intel_secure_send_result(data, ptr, len);
1898 break;
fad70972 1899 }
cda0dd78
MH		 1900 }
1901 }
1902
1903 return hci_recv_frame(hdev, skb);
1904}
1905
1906static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
1907{
1908 struct btusb_data *data = hci_get_drvdata(hdev);
1909 struct urb *urb;
1910
1911 BT_DBG("%s", hdev->name);
1912
618e8bc2 1913 switch (hci_skb_pkt_type(skb)) {
cda0dd78
MH		 1914 case HCI_COMMAND_PKT:
1915 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
1916 struct hci_command_hdr *cmd = (void *)skb->data;
1917 __u16 opcode = le16_to_cpu(cmd->opcode);
1918
1919 /* When in bootloader mode and the command 0xfc09
1920 * is received, it needs to be send down the
1921 * bulk endpoint. So allocate a bulk URB instead.
1922 */
1923 if (opcode == 0xfc09)
1924 urb = alloc_bulk_urb(hdev, skb);
1925 else
1926 urb = alloc_ctrl_urb(hdev, skb);
1927
1928 /* When the 0xfc01 command is issued to boot into
1929 * the operational firmware, it will actually not
1930 * send a command complete event. To keep the flow
1931 * control working inject that event here.
1932 */
1933 if (opcode == 0xfc01)
1934 inject_cmd_complete(hdev, opcode);
1935 } else {
1936 urb = alloc_ctrl_urb(hdev, skb);
1937 }
1938 if (IS_ERR(urb))
1939 return PTR_ERR(urb);
1940
1941 hdev->stat.cmd_tx++;
1942 return submit_or_queue_tx_urb(hdev, urb);
1943
1944 case HCI_ACLDATA_PKT:
1945 urb = alloc_bulk_urb(hdev, skb);
1946 if (IS_ERR(urb))
1947 return PTR_ERR(urb);
1948
1949 hdev->stat.acl_tx++;
1950 return submit_or_queue_tx_urb(hdev, urb);
1951
1952 case HCI_SCODATA_PKT:
1953 if (hci_conn_num(hdev, SCO_LINK) < 1)
1954 return -ENODEV;
1955
1956 urb = alloc_isoc_urb(hdev, skb);
1957 if (IS_ERR(urb))
1958 return PTR_ERR(urb);
1959
1960 hdev->stat.sco_tx++;
1961 return submit_tx_urb(hdev, urb);
1962 }
1963
1964 return -EILSEQ;
1965}
1966
cda0dd78
MH		 1967static int btusb_setup_intel_new(struct hci_dev *hdev)
1968{
1969 static const u8 reset_param[] = { 0x00, 0x01, 0x00, 0x01,
1970 0x00, 0x08, 0x04, 0x00 };
1971 struct btusb_data *data = hci_get_drvdata(hdev);
1972 struct sk_buff *skb;
6c483de1 1973 struct intel_version ver;
cda0dd78
MH		 1974 struct intel_boot_params *params;
1975 const struct firmware *fw;
1976 const u8 *fw_ptr;
e66890a9 1977 u32 frag_len;
cda0dd78
MH		 1978 char fwname[64];
1979 ktime_t calltime, delta, rettime;
1980 unsigned long long duration;
1981 int err;
1982
1983 BT_DBG("%s", hdev->name);
1984
1985 calltime = ktime_get();
1986
1987 /* Read the Intel version information to determine if the device
1988 * is in bootloader mode or if it already has operational firmware
1989 * loaded.
1990 */
6c483de1
LP		 1991 err = btintel_read_version(hdev, &ver);
1992 if (err)
1993 return err;
cda0dd78
MH		 1994
1995 /* The hardware platform number has a fixed value of 0x37 and
1996 * for now only accept this single value.
1997 */
6c483de1 1998 if (ver.hw_platform != 0x37) {
cda0dd78 1999 BT_ERR("%s: Unsupported Intel hardware platform (%u)",
6c483de1 2000 hdev->name, ver.hw_platform);
cda0dd78
MH		 2001 return -EINVAL;
2002 }
2003
a0af53b5
THJA		 2004 /* At the moment the iBT 3.0 hardware variants 0x0b (LnP/SfP)
2005 * and 0x0c (WsP) are supported by this firmware loading method.
2006 *
2007 * This check has been put in place to ensure correct forward
2008 * compatibility options when newer hardware variants come along.
cda0dd78 2009 */
a0af53b5 2010 if (ver.hw_variant != 0x0b && ver.hw_variant != 0x0c) {
cda0dd78 2011 BT_ERR("%s: Unsupported Intel hardware variant (%u)",
6c483de1 2012 hdev->name, ver.hw_variant);
cda0dd78
MH		 2013 return -EINVAL;
2014 }
2015
6c483de1 2016 btintel_version_info(hdev, &ver);
cda0dd78
MH		 2017
2018 /* The firmware variant determines if the device is in bootloader
2019 * mode or is running operational firmware. The value 0x06 identifies
2020 * the bootloader and the value 0x23 identifies the operational
2021 * firmware.
2022 *
2023 * When the operational firmware is already present, then only
2024 * the check for valid Bluetooth device address is needed. This
2025 * determines if the device will be added as configured or
2026 * unconfigured controller.
2027 *
2028 * It is not possible to use the Secure Boot Parameters in this
2029 * case since that command is only available in bootloader mode.
2030 */
6c483de1 2031 if (ver.fw_variant == 0x23) {
cda0dd78 2032 clear_bit(BTUSB_BOOTLOADER, &data->flags);
4185a0f5 2033 btintel_check_bdaddr(hdev);
cda0dd78
MH		 2034 return 0;
2035 }
2036
2037 /* If the device is not in bootloader mode, then the only possible
2038 * choice is to return an error and abort the device initialization.
2039 */
6c483de1 2040 if (ver.fw_variant != 0x06) {
cda0dd78 2041 BT_ERR("%s: Unsupported Intel firmware variant (%u)",
6c483de1 2042 hdev->name, ver.fw_variant);
cda0dd78
MH		 2043 return -ENODEV;
2044 }
2045
cda0dd78
MH		 2046 /* Read the secure boot parameters to identify the operating
2047 * details of the bootloader.
2048 */
2049 skb = __hci_cmd_sync(hdev, 0xfc0d, 0, NULL, HCI_INIT_TIMEOUT);
2050 if (IS_ERR(skb)) {
2051 BT_ERR("%s: Reading Intel boot parameters failed (%ld)",
2052 hdev->name, PTR_ERR(skb));
2053 return PTR_ERR(skb);
2054 }
2055
2056 if (skb->len != sizeof(*params)) {
2057 BT_ERR("%s: Intel boot parameters size mismatch", hdev->name);
2058 kfree_skb(skb);
2059 return -EILSEQ;
2060 }
2061
2062 params = (struct intel_boot_params *)skb->data;
cda0dd78
MH		 2063
2064 BT_INFO("%s: Device revision is %u", hdev->name,
2065 le16_to_cpu(params->dev_revid));
2066
2067 BT_INFO("%s: Secure boot is %s", hdev->name,
2068 params->secure_boot ? "enabled" : "disabled");
2069
2220994e
MH		 2070 BT_INFO("%s: OTP lock is %s", hdev->name,
2071 params->otp_lock ? "enabled" : "disabled");
2072
2073 BT_INFO("%s: API lock is %s", hdev->name,
2074 params->api_lock ? "enabled" : "disabled");
2075
2076 BT_INFO("%s: Debug lock is %s", hdev->name,
2077 params->debug_lock ? "enabled" : "disabled");
2078
cda0dd78
MH		 2079 BT_INFO("%s: Minimum firmware build %u week %u %u", hdev->name,
2080 params->min_fw_build_nn, params->min_fw_build_cw,
2081 2000 + params->min_fw_build_yy);
2082
2083 /* It is required that every single firmware fragment is acknowledged
2084 * with a command complete event. If the boot parameters indicate
2085 * that this bootloader does not send them, then abort the setup.
2086 */
2087 if (params->limited_cce != 0x00) {
2088 BT_ERR("%s: Unsupported Intel firmware loading method (%u)",
2089 hdev->name, params->limited_cce);
2090 kfree_skb(skb);
2091 return -EINVAL;
2092 }
2093
2094 /* If the OTP has no valid Bluetooth device address, then there will
2095 * also be no valid address for the operational firmware.
2096 */
2097 if (!bacmp(&params->otp_bdaddr, BDADDR_ANY)) {
2098 BT_INFO("%s: No device address configured", hdev->name);
2099 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
2100 }
2101
2102 /* With this Intel bootloader only the hardware variant and device
2103 * revision information are used to select the right firmware.
2104 *
2105 * Currently this bootloader support is limited to hardware variant
2106 * iBT 3.0 (LnP/SfP) which is identified by the value 11 (0x0b).
2107 */
2108 snprintf(fwname, sizeof(fwname), "intel/ibt-11-%u.sfi",
2109 le16_to_cpu(params->dev_revid));
2110
2111 err = request_firmware(&fw, fwname, &hdev->dev);
2112 if (err < 0) {
2113 BT_ERR("%s: Failed to load Intel firmware file (%d)",
2114 hdev->name, err);
2115 kfree_skb(skb);
2116 return err;
2117 }
2118
2119 BT_INFO("%s: Found device firmware: %s", hdev->name, fwname);
2120
52cc9168
THJA		 2121 /* Save the DDC file name for later use to apply once the firmware
2122 * downloading is done.
2123 */
2124 snprintf(fwname, sizeof(fwname), "intel/ibt-11-%u.ddc",
2125 le16_to_cpu(params->dev_revid));
2126
cda0dd78
MH		 2127 kfree_skb(skb);
2128
2129 if (fw->size < 644) {
2130 BT_ERR("%s: Invalid size of firmware file (%zu)",
2131 hdev->name, fw->size);
2132 err = -EBADF;
2133 goto done;
2134 }
2135
2136 set_bit(BTUSB_DOWNLOADING, &data->flags);
2137
2138 /* Start the firmware download transaction with the Init fragment
2139 * represented by the 128 bytes of CSS header.
2140 */
09df123d 2141 err = btintel_secure_send(hdev, 0x00, 128, fw->data);
cda0dd78
MH		 2142 if (err < 0) {
2143 BT_ERR("%s: Failed to send firmware header (%d)",
2144 hdev->name, err);
2145 goto done;
2146 }
2147
2148 /* Send the 256 bytes of public key information from the firmware
2149 * as the PKey fragment.
2150 */
09df123d 2151 err = btintel_secure_send(hdev, 0x03, 256, fw->data + 128);
cda0dd78
MH		 2152 if (err < 0) {
2153 BT_ERR("%s: Failed to send firmware public key (%d)",
2154 hdev->name, err);
2155 goto done;
2156 }
2157
2158 /* Send the 256 bytes of signature information from the firmware
2159 * as the Sign fragment.
2160 */
09df123d 2161 err = btintel_secure_send(hdev, 0x02, 256, fw->data + 388);
cda0dd78
MH		 2162 if (err < 0) {
2163 BT_ERR("%s: Failed to send firmware signature (%d)",
2164 hdev->name, err);
2165 goto done;
2166 }
2167
2168 fw_ptr = fw->data + 644;
e66890a9 2169 frag_len = 0;
cda0dd78
MH		 2170
2171 while (fw_ptr - fw->data < fw->size) {
e66890a9 2172 struct hci_command_hdr *cmd = (void *)(fw_ptr + frag_len);
cda0dd78 2173
e66890a9 2174 frag_len += sizeof(*cmd) + cmd->plen;
cda0dd78 2175
5075edae 2176 /* The parameter length of the secure send command requires
e66890a9
MH		 2177 * a 4 byte alignment. It happens so that the firmware file
2178 * contains proper Intel_NOP commands to align the fragments
2179 * as needed.
2180 *
2181 * Send set of commands with 4 byte alignment from the
2182 * firmware data buffer as a single Data fragement.
cda0dd78 2183 */
e66890a9 2184 if (!(frag_len % 4)) {
09df123d 2185 err = btintel_secure_send(hdev, 0x01, frag_len, fw_ptr);
e66890a9
MH		 2186 if (err < 0) {
2187 BT_ERR("%s: Failed to send firmware data (%d)",
2188 hdev->name, err);
2189 goto done;
2190 }
cda0dd78 2191
e66890a9
MH		 2192 fw_ptr += frag_len;
2193 frag_len = 0;
2194 }
cda0dd78
MH		 2195 }
2196
ce6bb929
MH		 2197 set_bit(BTUSB_FIRMWARE_LOADED, &data->flags);
2198
a087a98e
JH		 2199 BT_INFO("%s: Waiting for firmware download to complete", hdev->name);
2200
cda0dd78
MH		 2201 /* Before switching the device into operational mode and with that
2202 * booting the loaded firmware, wait for the bootloader notification
2203 * that all fragments have been successfully received.
2204 *
a087a98e
JH		 2205 * When the event processing receives the notification, then the
2206 * BTUSB_DOWNLOADING flag will be cleared.
2207 *
2208 * The firmware loading should not take longer than 5 seconds
2209 * and thus just timeout if that happens and fail the setup
2210 * of this device.
cda0dd78 2211 */
129a7693
JH		 2212 err = wait_on_bit_timeout(&data->flags, BTUSB_DOWNLOADING,
2213 TASK_INTERRUPTIBLE,
2214 msecs_to_jiffies(5000));
a087a98e
JH		 2215 if (err == 1) {
2216 BT_ERR("%s: Firmware loading interrupted", hdev->name);
2217 err = -EINTR;
2218 goto done;
2219 }
cda0dd78 2220
a087a98e
JH		 2221 if (err) {
2222 BT_ERR("%s: Firmware loading timeout", hdev->name);
2223 err = -ETIMEDOUT;
2224 goto done;
cda0dd78
MH		 2225 }
2226
2227 if (test_bit(BTUSB_FIRMWARE_FAILED, &data->flags)) {
2228 BT_ERR("%s: Firmware loading failed", hdev->name);
2229 err = -ENOEXEC;
2230 goto done;
2231 }
2232
2233 rettime = ktime_get();
2234 delta = ktime_sub(rettime, calltime);
2235 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2236
2237 BT_INFO("%s: Firmware loaded in %llu usecs", hdev->name, duration);
2238
2239done:
2240 release_firmware(fw);
2241
2242 if (err < 0)
2243 return err;
2244
2245 calltime = ktime_get();
2246
2247 set_bit(BTUSB_BOOTING, &data->flags);
2248
2249 skb = __hci_cmd_sync(hdev, 0xfc01, sizeof(reset_param), reset_param,
2250 HCI_INIT_TIMEOUT);
2251 if (IS_ERR(skb))
2252 return PTR_ERR(skb);
2253
2254 kfree_skb(skb);
2255
2256 /* The bootloader will not indicate when the device is ready. This
2257 * is done by the operational firmware sending bootup notification.
fad70972
JH		 2258 *
2259 * Booting into operational firmware should not take longer than
2260 * 1 second. However if that happens, then just fail the setup
2261 * since something went wrong.
cda0dd78 2262 */
fad70972 2263 BT_INFO("%s: Waiting for device to boot", hdev->name);
cda0dd78 2264
129a7693
JH		 2265 err = wait_on_bit_timeout(&data->flags, BTUSB_BOOTING,
2266 TASK_INTERRUPTIBLE,
2267 msecs_to_jiffies(1000));
cda0dd78 2268
fad70972
JH		 2269 if (err == 1) {
2270 BT_ERR("%s: Device boot interrupted", hdev->name);
2271 return -EINTR;
2272 }
cda0dd78 2273
fad70972
JH		 2274 if (err) {
2275 BT_ERR("%s: Device boot timeout", hdev->name);
2276 return -ETIMEDOUT;
cda0dd78
MH		 2277 }
2278
2279 rettime = ktime_get();
2280 delta = ktime_sub(rettime, calltime);
2281 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2282
2283 BT_INFO("%s: Device booted in %llu usecs", hdev->name, duration);
2284
2285 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2286
52cc9168
THJA		 2287 /* Once the device is running in operational mode, it needs to apply
2288 * the device configuration (DDC) parameters.
2289 *
2290 * The device can work without DDC parameters, so even if it fails
2291 * to load the file, no need to fail the setup.
2292 */
e924d3d6 2293 btintel_load_ddc_config(hdev, fwname);
52cc9168 2294
213445b2
MH		 2295 /* Set the event mask for Intel specific vendor events. This enables
2296 * a few extra events that are useful during general operation. It
2297 * does not enable any debugging related events.
2298 *
2299 * The device will function correctly without these events enabled
2300 * and thus no need to fail the setup.
2301 */
2302 btintel_set_event_mask(hdev, false);
2303
cda0dd78
MH		 2304 return 0;
2305}
2306
bfbd45e9
THJA		 2307static int btusb_shutdown_intel(struct hci_dev *hdev)
2308{
2309 struct sk_buff *skb;
2310 long ret;
2311
2312 /* Some platforms have an issue with BT LED when the interface is
2313 * down or BT radio is turned off, which takes 5 seconds to BT LED
2314 * goes off. This command turns off the BT LED immediately.
2315 */
2316 skb = __hci_cmd_sync(hdev, 0xfc3f, 0, NULL, HCI_INIT_TIMEOUT);
2317 if (IS_ERR(skb)) {
2318 ret = PTR_ERR(skb);
2319 BT_ERR("%s: turning off Intel device LED failed (%ld)",
2320 hdev->name, ret);
2321 return ret;
2322 }
2323 kfree_skb(skb);
2324
2325 return 0;
2326}
2327
ae8df494
AK		 2328static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
2329 const bdaddr_t *bdaddr)
2330{
2331 struct sk_buff *skb;
2332 u8 buf[8];
2333 long ret;
2334
2335 buf[0] = 0xfe;
2336 buf[1] = sizeof(bdaddr_t);
2337 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
2338
2339 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2340 if (IS_ERR(skb)) {
2341 ret = PTR_ERR(skb);
2342 BT_ERR("%s: changing Marvell device address failed (%ld)",
2343 hdev->name, ret);
2344 return ret;
2345 }
2346 kfree_skb(skb);
2347
2348 return 0;
2349}
2350
5859223e
TK		 2351static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
2352 const bdaddr_t *bdaddr)
2353{
2354 struct sk_buff *skb;
2355 u8 buf[10];
2356 long ret;
2357
2358 buf[0] = 0x01;
2359 buf[1] = 0x01;
2360 buf[2] = 0x00;
2361 buf[3] = sizeof(bdaddr_t);
2362 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
2363
2364 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2365 if (IS_ERR(skb)) {
2366 ret = PTR_ERR(skb);
2367 BT_ERR("%s: Change address command failed (%ld)",
2368 hdev->name, ret);
2369 return ret;
2370 }
2371 kfree_skb(skb);
2372
2373 return 0;
2374}
2375
3267c884
KBYT		 2376#define QCA_DFU_PACKET_LEN 4096
2377
2378#define QCA_GET_TARGET_VERSION 0x09
2379#define QCA_CHECK_STATUS 0x05
2380#define QCA_DFU_DOWNLOAD 0x01
2381
2382#define QCA_SYSCFG_UPDATED 0x40
2383#define QCA_PATCH_UPDATED 0x80
2384#define QCA_DFU_TIMEOUT 3000
2385
2386struct qca_version {
2387 __le32 rom_version;
2388 __le32 patch_version;
2389 __le32 ram_version;
2390 __le32 ref_clock;
2391 __u8 reserved[4];
2392} __packed;
2393
2394struct qca_rampatch_version {
2395 __le16 rom_version;
2396 __le16 patch_version;
2397} __packed;
2398
2399struct qca_device_info {
bf906b3d
KBYT		 2400 u32 rom_version;
2401 u8 rampatch_hdr; /* length of header in rampatch */
2402 u8 nvm_hdr; /* length of header in NVM */
2403 u8 ver_offset; /* offset of version structure in rampatch */
3267c884
KBYT		 2404};
2405
2406static const struct qca_device_info qca_devices_table[] = {
2407 { 0x00000100, 20, 4, 10 }, /* Rome 1.0 */
2408 { 0x00000101, 20, 4, 10 }, /* Rome 1.1 */
7f6e6363 2409 { 0x00000200, 28, 4, 18 }, /* Rome 2.0 */
3267c884
KBYT		 2410 { 0x00000201, 28, 4, 18 }, /* Rome 2.1 */
2411 { 0x00000300, 28, 4, 18 }, /* Rome 3.0 */
2412 { 0x00000302, 28, 4, 18 }, /* Rome 3.2 */
2413};
2414
2415static int btusb_qca_send_vendor_req(struct hci_dev *hdev, u8 request,
2416 void *data, u16 size)
2417{
2418 struct btusb_data *btdata = hci_get_drvdata(hdev);
2419 struct usb_device *udev = btdata->udev;
2420 int pipe, err;
2421 u8 *buf;
2422
2423 buf = kmalloc(size, GFP_KERNEL);
2424 if (!buf)
2425 return -ENOMEM;
2426
2427 /* Found some of USB hosts have IOT issues with ours so that we should
2428 * not wait until HCI layer is ready.
2429 */
2430 pipe = usb_rcvctrlpipe(udev, 0);
2431 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
2432 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
2433 if (err < 0) {
2434 BT_ERR("%s: Failed to access otp area (%d)", hdev->name, err);
2435 goto done;
2436 }
2437
2438 memcpy(data, buf, size);
2439
2440done:
2441 kfree(buf);
2442
2443 return err;
2444}
2445
2446static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
2447 const struct firmware *firmware,
2448 size_t hdr_size)
2449{
2450 struct btusb_data *btdata = hci_get_drvdata(hdev);
2451 struct usb_device *udev = btdata->udev;
2452 size_t count, size, sent = 0;
2453 int pipe, len, err;
2454 u8 *buf;
2455
2456 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
2457 if (!buf)
2458 return -ENOMEM;
2459
2460 count = firmware->size;
2461
2462 size = min_t(size_t, count, hdr_size);
2463 memcpy(buf, firmware->data, size);
2464
2465 /* USB patches should go down to controller through USB path
2466 * because binary format fits to go down through USB channel.
2467 * USB control path is for patching headers and USB bulk is for
2468 * patch body.
2469 */
2470 pipe = usb_sndctrlpipe(udev, 0);
2471 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
2472 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
2473 if (err < 0) {
2474 BT_ERR("%s: Failed to send headers (%d)", hdev->name, err);
2475 goto done;
2476 }
2477
2478 sent += size;
2479 count -= size;
2480
2481 while (count) {
2482 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
2483
2484 memcpy(buf, firmware->data + sent, size);
2485
2486 pipe = usb_sndbulkpipe(udev, 0x02);
2487 err = usb_bulk_msg(udev, pipe, buf, size, &len,
2488 QCA_DFU_TIMEOUT);
2489 if (err < 0) {
2490 BT_ERR("%s: Failed to send body at %zd of %zd (%d)",
2491 hdev->name, sent, firmware->size, err);
2492 break;
2493 }
2494
2495 if (size != len) {
2496 BT_ERR("%s: Failed to get bulk buffer", hdev->name);
2497 err = -EILSEQ;
2498 break;
2499 }
2500
2501 sent += size;
2502 count -= size;
2503 }
2504
2505done:
2506 kfree(buf);
2507 return err;
2508}
2509
2510static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
2511 struct qca_version *ver,
2512 const struct qca_device_info *info)
2513{
2514 struct qca_rampatch_version *rver;
2515 const struct firmware *fw;
bf906b3d
KBYT		 2516 u32 ver_rom, ver_patch;
2517 u16 rver_rom, rver_patch;
3267c884
KBYT		 2518 char fwname[64];
2519 int err;
2520
bf906b3d
KBYT		 2521 ver_rom = le32_to_cpu(ver->rom_version);
2522 ver_patch = le32_to_cpu(ver->patch_version);
2523
2524 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom);
3267c884
KBYT		 2525
2526 err = request_firmware(&fw, fwname, &hdev->dev);
2527 if (err) {
2528 BT_ERR("%s: failed to request rampatch file: %s (%d)",
2529 hdev->name, fwname, err);
2530 return err;
2531 }
2532
2533 BT_INFO("%s: using rampatch file: %s", hdev->name, fwname);
bf906b3d 2534
3267c884 2535 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
bf906b3d
KBYT		 2536 rver_rom = le16_to_cpu(rver->rom_version);
2537 rver_patch = le16_to_cpu(rver->patch_version);
2538
3267c884 2539 BT_INFO("%s: QCA: patch rome 0x%x build 0x%x, firmware rome 0x%x "
bf906b3d
KBYT		 2540 "build 0x%x", hdev->name, rver_rom, rver_patch, ver_rom,
2541 ver_patch);
3267c884 2542
bf906b3d 2543 if (rver_rom != ver_rom || rver_patch <= ver_patch) {
3267c884
KBYT		 2544 BT_ERR("%s: rampatch file version did not match with firmware",
2545 hdev->name);
2546 err = -EINVAL;
2547 goto done;
2548 }
2549
2550 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
2551
2552done:
2553 release_firmware(fw);
2554
2555 return err;
2556}
2557
2558static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
2559 struct qca_version *ver,
2560 const struct qca_device_info *info)
2561{
2562 const struct firmware *fw;
2563 char fwname[64];
2564 int err;
2565
2566 snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin",
2567 le32_to_cpu(ver->rom_version));
2568
2569 err = request_firmware(&fw, fwname, &hdev->dev);
2570 if (err) {
2571 BT_ERR("%s: failed to request NVM file: %s (%d)",
2572 hdev->name, fwname, err);
2573 return err;
2574 }
2575
2576 BT_INFO("%s: using NVM file: %s", hdev->name, fwname);
2577
2578 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
2579
2580 release_firmware(fw);
2581
2582 return err;
2583}
2584
2585static int btusb_setup_qca(struct hci_dev *hdev)
2586{
2587 const struct qca_device_info *info = NULL;
2588 struct qca_version ver;
bf906b3d 2589 u32 ver_rom;
3267c884
KBYT		 2590 u8 status;
2591 int i, err;
2592
2593 err = btusb_qca_send_vendor_req(hdev, QCA_GET_TARGET_VERSION, &ver,
eb50042f 2594 sizeof(ver));
3267c884
KBYT		 2595 if (err < 0)
2596 return err;
2597
bf906b3d 2598 ver_rom = le32_to_cpu(ver.rom_version);
3267c884 2599 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
bf906b3d 2600 if (ver_rom == qca_devices_table[i].rom_version)
3267c884
KBYT		 2601 info = &qca_devices_table[i];
2602 }
2603 if (!info) {
2604 BT_ERR("%s: don't support firmware rome 0x%x", hdev->name,
bf906b3d 2605 ver_rom);
3267c884
KBYT		 2606 return -ENODEV;
2607 }
2608
2609 err = btusb_qca_send_vendor_req(hdev, QCA_CHECK_STATUS, &status,
2610 sizeof(status));
2611 if (err < 0)
2612 return err;
2613
2614 if (!(status & QCA_PATCH_UPDATED)) {
2615 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
2616 if (err < 0)
2617 return err;
2618 }
2619
2620 if (!(status & QCA_SYSCFG_UPDATED)) {
2621 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
2622 if (err < 0)
2623 return err;
2624 }
2625
2626 return 0;
2627}
2628
9d08f504
MH		 2629#ifdef CONFIG_BT_HCIBTUSB_BCM
2630static inline int __set_diag_interface(struct hci_dev *hdev)
2631{
2632 struct btusb_data *data = hci_get_drvdata(hdev);
2633 struct usb_interface *intf = data->diag;
2634 int i;
2635
2636 if (!data->diag)
2637 return -ENODEV;
2638
2639 data->diag_tx_ep = NULL;
2640 data->diag_rx_ep = NULL;
2641
2642 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2643 struct usb_endpoint_descriptor *ep_desc;
2644
2645 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2646
2647 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
2648 data->diag_tx_ep = ep_desc;
2649 continue;
2650 }
2651
2652 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
2653 data->diag_rx_ep = ep_desc;
2654 continue;
2655 }
2656 }
2657
2658 if (!data->diag_tx_ep || !data->diag_rx_ep) {
2659 BT_ERR("%s invalid diagnostic descriptors", hdev->name);
2660 return -ENODEV;
2661 }
2662
2663 return 0;
2664}
2665
2666static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable)
2667{
2668 struct btusb_data *data = hci_get_drvdata(hdev);
2669 struct sk_buff *skb;
2670 struct urb *urb;
2671 unsigned int pipe;
2672
2673 if (!data->diag_tx_ep)
2674 return ERR_PTR(-ENODEV);
2675
2676 urb = usb_alloc_urb(0, GFP_KERNEL);
2677 if (!urb)
2678 return ERR_PTR(-ENOMEM);
2679
2680 skb = bt_skb_alloc(2, GFP_KERNEL);
2681 if (!skb) {
2682 usb_free_urb(urb);
2683 return ERR_PTR(-ENOMEM);
2684 }
2685
2686 *skb_put(skb, 1) = 0xf0;
2687 *skb_put(skb, 1) = enable;
2688
2689 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress);
2690
2691 usb_fill_bulk_urb(urb, data->udev, pipe,
2692 skb->data, skb->len, btusb_tx_complete, skb);
2693
2694 skb->dev = (void *)hdev;
2695
2696 return urb;
2697}
2698
2699static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable)
2700{
2701 struct btusb_data *data = hci_get_drvdata(hdev);
2702 struct urb *urb;
2703
2704 if (!data->diag)
2705 return -ENODEV;
2706
2707 if (!test_bit(HCI_RUNNING, &hdev->flags))
2708 return -ENETDOWN;
2709
2710 urb = alloc_diag_urb(hdev, enable);
2711 if (IS_ERR(urb))
2712 return PTR_ERR(urb);
2713
2714 return submit_or_queue_tx_urb(hdev, urb);
2715}
2716#endif
2717
5e23b923 2718static int btusb_probe(struct usb_interface *intf,
89e7533d 2719 const struct usb_device_id *id)
5e23b923
MH		 2720{
2721 struct usb_endpoint_descriptor *ep_desc;
2722 struct btusb_data *data;
2723 struct hci_dev *hdev;
22f8e9db 2724 unsigned ifnum_base;
5e23b923
MH		 2725 int i, err;
2726
2727 BT_DBG("intf %p id %p", intf, id);
2728
cfeb4145 2729 /* interface numbers are hardcoded in the spec */
22f8e9db
MH		 2730 if (intf->cur_altsetting->desc.bInterfaceNumber != 0) {
2731 if (!(id->driver_info & BTUSB_IFNUM_2))
2732 return -ENODEV;
2733 if (intf->cur_altsetting->desc.bInterfaceNumber != 2)
2734 return -ENODEV;
2735 }
2736
2737 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber;
5e23b923
MH		 2738
2739 if (!id->driver_info) {
2740 const struct usb_device_id *match;
89e7533d 2741
5e23b923
MH		 2742 match = usb_match_id(intf, blacklist_table);
2743 if (match)
2744 id = match;
2745 }
2746
cfeb4145
MH		 2747 if (id->driver_info == BTUSB_IGNORE)
2748 return -ENODEV;
2749
2d25f8b4
SL		 2750 if (id->driver_info & BTUSB_ATH3012) {
2751 struct usb_device *udev = interface_to_usbdev(intf);
2752
2753 /* Old firmware would otherwise let ath3k driver load
2754 * patch and sysconfig files */
2755 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
2756 return -ENODEV;
2757 }
2758
98921dbd 2759 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
5e23b923
MH		 2760 if (!data)
2761 return -ENOMEM;
2762
2763 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2764 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2765
2766 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
2767 data->intr_ep = ep_desc;
2768 continue;
2769 }
2770
2771 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
2772 data->bulk_tx_ep = ep_desc;
2773 continue;
2774 }
2775
2776 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
2777 data->bulk_rx_ep = ep_desc;
2778 continue;
2779 }
2780 }
2781
98921dbd 2782 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
5e23b923 2783 return -ENODEV;
5e23b923 2784
893ba544
MH		 2785 if (id->driver_info & BTUSB_AMP) {
2786 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
2787 data->cmdreq = 0x2b;
2788 } else {
2789 data->cmdreq_type = USB_TYPE_CLASS;
2790 data->cmdreq = 0x00;
2791 }
7a9d4020 2792
5e23b923 2793 data->udev = interface_to_usbdev(intf);
5fbcd260 2794 data->intf = intf;
5e23b923 2795
5e23b923 2796 INIT_WORK(&data->work, btusb_work);
7bee549e 2797 INIT_WORK(&data->waker, btusb_waker);
803b5836
MH		 2798 init_usb_anchor(&data->deferred);
2799 init_usb_anchor(&data->tx_anchor);
7bee549e 2800 spin_lock_init(&data->txlock);
5e23b923 2801
5e23b923
MH		 2802 init_usb_anchor(&data->intr_anchor);
2803 init_usb_anchor(&data->bulk_anchor);
9bfa35fe 2804 init_usb_anchor(&data->isoc_anchor);
9d08f504 2805 init_usb_anchor(&data->diag_anchor);
803b5836 2806 spin_lock_init(&data->rxlock);
5e23b923 2807
cda0dd78
MH		 2808 if (id->driver_info & BTUSB_INTEL_NEW) {
2809 data->recv_event = btusb_recv_event_intel;
2810 data->recv_bulk = btusb_recv_bulk_intel;
2811 set_bit(BTUSB_BOOTLOADER, &data->flags);
2812 } else {
2813 data->recv_event = hci_recv_frame;
2814 data->recv_bulk = btusb_recv_bulk;
2815 }
2cbd3f5c 2816
5e23b923 2817 hdev = hci_alloc_dev();
98921dbd 2818 if (!hdev)
5e23b923 2819 return -ENOMEM;
5e23b923 2820
c13854ce 2821 hdev->bus = HCI_USB;
155961e8 2822 hci_set_drvdata(hdev, data);
5e23b923 2823
893ba544
MH		 2824 if (id->driver_info & BTUSB_AMP)
2825 hdev->dev_type = HCI_AMP;
2826 else
2827 hdev->dev_type = HCI_BREDR;
2828
5e23b923
MH		 2829 data->hdev = hdev;
2830
2831 SET_HCIDEV_DEV(hdev, &intf->dev);
2832
9f8f962c
MH		 2833 hdev->open = btusb_open;
2834 hdev->close = btusb_close;
2835 hdev->flush = btusb_flush;
2836 hdev->send = btusb_send_frame;
2837 hdev->notify = btusb_notify;
2838
6c9d435d
MH		 2839 if (id->driver_info & BTUSB_BCM2045)
2840 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
2841
9f8f962c
MH		 2842 if (id->driver_info & BTUSB_BCM92035)
2843 hdev->setup = btusb_setup_bcm92035;
5e23b923 2844
c2bfb100 2845#ifdef CONFIG_BT_HCIBTUSB_BCM
abbaf50e 2846 if (id->driver_info & BTUSB_BCM_PATCHRAM) {
49a5f782 2847 hdev->manufacturer = 15;
c2bfb100 2848 hdev->setup = btbcm_setup_patchram;
9d08f504 2849 hdev->set_diag = btusb_bcm_set_diag;
1df1f591 2850 hdev->set_bdaddr = btbcm_set_bdaddr;
9d08f504
MH		 2851
2852 /* Broadcom LM_DIAG Interface numbers are hardcoded */
22f8e9db 2853 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
abbaf50e 2854 }
10d4c673 2855
9d08f504 2856 if (id->driver_info & BTUSB_BCM_APPLE) {
49a5f782 2857 hdev->manufacturer = 15;
c2bfb100 2858 hdev->setup = btbcm_setup_apple;
9d08f504
MH		 2859 hdev->set_diag = btusb_bcm_set_diag;
2860
2861 /* Broadcom LM_DIAG Interface numbers are hardcoded */
22f8e9db 2862 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
9d08f504 2863 }
c2bfb100 2864#endif
17b2772b 2865
cb8d6597 2866 if (id->driver_info & BTUSB_INTEL) {
49a5f782 2867 hdev->manufacturer = 2;
dffd30ee 2868 hdev->setup = btusb_setup_intel;
bfbd45e9 2869 hdev->shutdown = btusb_shutdown_intel;
3e24767b 2870 hdev->set_diag = btintel_set_diag_mfg;
4185a0f5 2871 hdev->set_bdaddr = btintel_set_bdaddr;
c33fb9b4 2872 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
c1154842 2873 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3e24767b 2874 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks);
cb8d6597 2875 }
dffd30ee 2876
cda0dd78 2877 if (id->driver_info & BTUSB_INTEL_NEW) {
49a5f782 2878 hdev->manufacturer = 2;
cda0dd78
MH		 2879 hdev->send = btusb_send_frame_intel;
2880 hdev->setup = btusb_setup_intel_new;
eeb6abe9 2881 hdev->hw_error = btintel_hw_error;
6d2e50d2 2882 hdev->set_diag = btintel_set_diag;
4185a0f5 2883 hdev->set_bdaddr = btintel_set_bdaddr;
b970c5ba 2884 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
d8270fbb 2885 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks);
cda0dd78
MH		 2886 }
2887
ae8df494
AK		 2888 if (id->driver_info & BTUSB_MARVELL)
2889 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
2890
661cf88a
MH		 2891 if (id->driver_info & BTUSB_SWAVE) {
2892 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
d57dbe77 2893 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
661cf88a 2894 }
d57dbe77 2895
e4c534bb
MH		 2896 if (id->driver_info & BTUSB_INTEL_BOOT) {
2897 hdev->manufacturer = 2;
40df783d 2898 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
e4c534bb 2899 }
40df783d 2900
79f0c87d 2901 if (id->driver_info & BTUSB_ATH3012) {
5859223e 2902 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
3d50d51a 2903 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
79f0c87d
JP		 2904 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
2905 }
5859223e 2906
3267c884
KBYT		 2907 if (id->driver_info & BTUSB_QCA_ROME) {
2908 data->setup_on_usb = btusb_setup_qca;
2909 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
2910 }
2911
db33c77d 2912#ifdef CONFIG_BT_HCIBTUSB_RTL
04b8c814 2913 if (id->driver_info & BTUSB_REALTEK) {
db33c77d 2914 hdev->setup = btrtl_setup_realtek;
04b8c814
DD		 2915
2916 /* Realtek devices lose their updated firmware over suspend,
2917 * but the USB hub doesn't notice any status change.
2918 * Explicitly request a device reset on resume.
2919 */
2920 set_bit(BTUSB_RESET_RESUME, &data->flags);
2921 }
db33c77d 2922#endif
a2698a9b 2923
893ba544
MH		 2924 if (id->driver_info & BTUSB_AMP) {
2925 /* AMP controllers do not support SCO packets */
2926 data->isoc = NULL;
2927 } else {
22f8e9db
MH		 2928 /* Interface orders are hardcoded in the specification */
2929 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1);
893ba544 2930 }
9bfa35fe 2931
7a9d4020 2932 if (!reset)
a6c511c6 2933 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
cfeb4145
MH		 2934
2935 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
2936 if (!disable_scofix)
2937 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
2938 }
2939
9bfa35fe
MH		 2940 if (id->driver_info & BTUSB_BROKEN_ISOC)
2941 data->isoc = NULL;
2942
7a9d4020
MH		 2943 if (id->driver_info & BTUSB_DIGIANSWER) {
2944 data->cmdreq_type = USB_TYPE_VENDOR;
a6c511c6 2945 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
7a9d4020
MH		 2946 }
2947
2948 if (id->driver_info & BTUSB_CSR) {
2949 struct usb_device *udev = data->udev;
81cac64b 2950 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
7a9d4020
MH		 2951
2952 /* Old firmware would otherwise execute USB reset */
81cac64b 2953 if (bcdDevice < 0x117)
a6c511c6 2954 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
81cac64b
MH		 2955
2956 /* Fake CSR devices with broken commands */
6cafcd95 2957 if (bcdDevice <= 0x100 || bcdDevice == 0x134)
81cac64b 2958 hdev->setup = btusb_setup_csr;
49c989a0
JP		 2959
2960 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
7a9d4020
MH		 2961 }
2962
cfeb4145 2963 if (id->driver_info & BTUSB_SNIFFER) {
9bfa35fe 2964 struct usb_device *udev = data->udev;
cfeb4145 2965
7a9d4020 2966 /* New sniffer firmware has crippled HCI interface */
cfeb4145
MH		 2967 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
2968 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
2969 }
2970
3a5ef20c
MH		 2971 if (id->driver_info & BTUSB_INTEL_BOOT) {
2972 /* A bug in the bootloader causes that interrupt interface is
2973 * only enabled after receiving SetInterface(0, AltSetting=0).
2974 */
2975 err = usb_set_interface(data->udev, 0, 0);
2976 if (err < 0) {
2977 BT_ERR("failed to set interface 0, alt 0 %d", err);
2978 hci_free_dev(hdev);
2979 return err;
2980 }
2981 }
2982
9bfa35fe
MH		 2983 if (data->isoc) {
2984 err = usb_driver_claim_interface(&btusb_driver,
89e7533d 2985 data->isoc, data);
9bfa35fe
MH		 2986 if (err < 0) {
2987 hci_free_dev(hdev);
9bfa35fe
MH		 2988 return err;
2989 }
2990 }
2991
9d08f504
MH		 2992#ifdef CONFIG_BT_HCIBTUSB_BCM
2993 if (data->diag) {
2994 if (!usb_driver_claim_interface(&btusb_driver,
2995 data->diag, data))
2996 __set_diag_interface(hdev);
2997 else
2998 data->diag = NULL;
2999 }
3000#endif
3001
5e23b923
MH		 3002 err = hci_register_dev(hdev);
3003 if (err < 0) {
3004 hci_free_dev(hdev);
5e23b923
MH		 3005 return err;
3006 }
3007
3008 usb_set_intfdata(intf, data);
3009
3010 return 0;
3011}
3012
3013static void btusb_disconnect(struct usb_interface *intf)
3014{
3015 struct btusb_data *data = usb_get_intfdata(intf);
3016 struct hci_dev *hdev;
3017
3018 BT_DBG("intf %p", intf);
3019
3020 if (!data)
3021 return;
3022
3023 hdev = data->hdev;
5fbcd260
MH		 3024 usb_set_intfdata(data->intf, NULL);
3025
3026 if (data->isoc)
3027 usb_set_intfdata(data->isoc, NULL);
5e23b923 3028
9d08f504
MH		 3029 if (data->diag)
3030 usb_set_intfdata(data->diag, NULL);
3031
5e23b923
MH		 3032 hci_unregister_dev(hdev);
3033
9d08f504
MH		 3034 if (intf == data->intf) {
3035 if (data->isoc)
3036 usb_driver_release_interface(&btusb_driver, data->isoc);
3037 if (data->diag)
3038 usb_driver_release_interface(&btusb_driver, data->diag);
3039 } else if (intf == data->isoc) {
3040 if (data->diag)
3041 usb_driver_release_interface(&btusb_driver, data->diag);
5fbcd260 3042 usb_driver_release_interface(&btusb_driver, data->intf);
9d08f504
MH		 3043 } else if (intf == data->diag) {
3044 usb_driver_release_interface(&btusb_driver, data->intf);
3045 if (data->isoc)
3046 usb_driver_release_interface(&btusb_driver, data->isoc);
3047 }
5fbcd260 3048
5e23b923
MH		 3049 hci_free_dev(hdev);
3050}
3051
7bee549e 3052#ifdef CONFIG_PM
6a88adf2
MH		 3053static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
3054{
3055 struct btusb_data *data = usb_get_intfdata(intf);
3056
3057 BT_DBG("intf %p", intf);
3058
3059 if (data->suspend_count++)
3060 return 0;
3061
7bee549e 3062 spin_lock_irq(&data->txlock);
5b1b0b81 3063 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
7bee549e
ON		 3064 set_bit(BTUSB_SUSPENDING, &data->flags);
3065 spin_unlock_irq(&data->txlock);
3066 } else {
3067 spin_unlock_irq(&data->txlock);
3068 data->suspend_count--;
3069 return -EBUSY;
3070 }
3071
6a88adf2
MH		 3072 cancel_work_sync(&data->work);
3073
7bee549e 3074 btusb_stop_traffic(data);
6a88adf2
MH		 3075 usb_kill_anchored_urbs(&data->tx_anchor);
3076
04b8c814
DD		 3077 /* Optionally request a device reset on resume, but only when
3078 * wakeups are disabled. If wakeups are enabled we assume the
3079 * device will stay powered up throughout suspend.
3080 */
3081 if (test_bit(BTUSB_RESET_RESUME, &data->flags) &&
3082 !device_may_wakeup(&data->udev->dev))
3083 data->udev->reset_resume = 1;
3084
6a88adf2
MH		 3085 return 0;
3086}
3087
7bee549e
ON		 3088static void play_deferred(struct btusb_data *data)
3089{
3090 struct urb *urb;
3091 int err;
3092
3093 while ((urb = usb_get_from_anchor(&data->deferred))) {
3094 err = usb_submit_urb(urb, GFP_ATOMIC);
3095 if (err < 0)
3096 break;
3097
3098 data->tx_in_flight++;
3099 }
3100 usb_scuttle_anchored_urbs(&data->deferred);
3101}
3102
6a88adf2
MH		 3103static int btusb_resume(struct usb_interface *intf)
3104{
3105 struct btusb_data *data = usb_get_intfdata(intf);
3106 struct hci_dev *hdev = data->hdev;
7bee549e 3107 int err = 0;
6a88adf2
MH		 3108
3109 BT_DBG("intf %p", intf);
3110
3111 if (--data->suspend_count)
3112 return 0;
3113
3114 if (!test_bit(HCI_RUNNING, &hdev->flags))
7bee549e 3115 goto done;
6a88adf2
MH		 3116
3117 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
3118 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
3119 if (err < 0) {
3120 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
7bee549e 3121 goto failed;
6a88adf2
MH		 3122 }
3123 }
3124
3125 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
43c2e57f
MH		 3126 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
3127 if (err < 0) {
6a88adf2 3128 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
7bee549e
ON		 3129 goto failed;
3130 }
3131
3132 btusb_submit_bulk_urb(hdev, GFP_NOIO);
6a88adf2
MH		 3133 }
3134
3135 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
3136 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
3137 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
3138 else
3139 btusb_submit_isoc_urb(hdev, GFP_NOIO);
3140 }
3141
7bee549e
ON		 3142 spin_lock_irq(&data->txlock);
3143 play_deferred(data);
3144 clear_bit(BTUSB_SUSPENDING, &data->flags);
3145 spin_unlock_irq(&data->txlock);
3146 schedule_work(&data->work);
3147
6a88adf2 3148 return 0;
7bee549e
ON		 3149
3150failed:
3151 usb_scuttle_anchored_urbs(&data->deferred);
3152done:
3153 spin_lock_irq(&data->txlock);
3154 clear_bit(BTUSB_SUSPENDING, &data->flags);
3155 spin_unlock_irq(&data->txlock);
3156
3157 return err;
6a88adf2 3158}
7bee549e 3159#endif
6a88adf2 3160
5e23b923
MH		 3161static struct usb_driver btusb_driver = {
3162 .name = "btusb",
3163 .probe = btusb_probe,
3164 .disconnect = btusb_disconnect,
7bee549e 3165#ifdef CONFIG_PM
6a88adf2
MH		 3166 .suspend = btusb_suspend,
3167 .resume = btusb_resume,
7bee549e 3168#endif
5e23b923 3169 .id_table = btusb_table,
7bee549e 3170 .supports_autosuspend = 1,
e1f12eb6 3171 .disable_hub_initiated_lpm = 1,
5e23b923
MH		 3172};
3173
93f1508c 3174module_usb_driver(btusb_driver);
5e23b923 3175
cfeb4145
MH		 3176module_param(disable_scofix, bool, 0644);
3177MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
3178
3179module_param(force_scofix, bool, 0644);
3180MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
3181
3182module_param(reset, bool, 0644);
3183MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
3184
5e23b923
MH		 3185MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
3186MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
3187MODULE_VERSION(VERSION);
3188MODULE_LICENSE("GPL");
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