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hp-wmi: Remove GPS rfkill support via pre-2009 interface
[linux-2.6-block.git] / drivers / bluetooth / btusb.c
CommitLineData
5e23b923
MH		 1/*
2 *
3 * Generic Bluetooth USB driver
4 *
9bfa35fe 5 * Copyright (C) 2005-2008 Marcel Holtmann <marcel@holtmann.org>
5e23b923
MH		 6 *
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 *
22 */
23
5e23b923 24#include <linux/module.h>
5e23b923 25#include <linux/usb.h>
dffd30ee 26#include <linux/firmware.h>
a2698a9b 27#include <asm/unaligned.h>
5e23b923
MH		 28
29#include <net/bluetooth/bluetooth.h>
30#include <net/bluetooth/hci_core.h>
31
4185a0f5 32#include "btintel.h"
1df1f591 33#include "btbcm.h"
db33c77d 34#include "btrtl.h"
1df1f591 35
34dced9b 36#define VERSION "0.8"
cfeb4145 37
90ab5ee9
RR		 38static bool disable_scofix;
39static bool force_scofix;
7a9d4020 40
917a3337 41static bool reset = true;
cfeb4145
MH		 42
43static struct usb_driver btusb_driver;
44
45#define BTUSB_IGNORE 0x01
7a9d4020
MH		 46#define BTUSB_DIGIANSWER 0x02
47#define BTUSB_CSR 0x04
48#define BTUSB_SNIFFER 0x08
49#define BTUSB_BCM92035 0x10
50#define BTUSB_BROKEN_ISOC 0x20
51#define BTUSB_WRONG_SCO_MTU 0x40
2d25f8b4 52#define BTUSB_ATH3012 0x80
dffd30ee 53#define BTUSB_INTEL 0x100
40df783d
MH		 54#define BTUSB_INTEL_BOOT 0x200
55#define BTUSB_BCM_PATCHRAM 0x400
ae8df494 56#define BTUSB_MARVELL 0x800
4fcef8ed 57#define BTUSB_SWAVE 0x1000
cda0dd78 58#define BTUSB_INTEL_NEW 0x2000
893ba544 59#define BTUSB_AMP 0x4000
3267c884 60#define BTUSB_QCA_ROME 0x8000
17b2772b 61#define BTUSB_BCM_APPLE 0x10000
a2698a9b 62#define BTUSB_REALTEK 0x20000
6c9d435d 63#define BTUSB_BCM2045 0x40000
22f8e9db 64#define BTUSB_IFNUM_2 0x80000
5e23b923 65
54265202 66static const struct usb_device_id btusb_table[] = {
5e23b923
MH		 67 /* Generic Bluetooth USB device */
68 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
69
893ba544
MH		 70 /* Generic Bluetooth AMP device */
71 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP },
72
d63b2826
DD		 73 /* Generic Bluetooth USB interface */
74 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) },
75
1fa6535f 76 /* Apple-specific (Broadcom) devices */
17b2772b 77 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01),
22f8e9db 78 .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 },
1fa6535f 79
178c059e
CYC		 80 /* MediaTek MT76x0E */
81 { USB_DEVICE(0x0e8d, 0x763f) },
82
c510eae3 83 /* Broadcom SoftSailing reporting vendor specific */
2e8b5063 84 { USB_DEVICE(0x0a5c, 0x21e1) },
c510eae3 85
3cd01976
NI		 86 /* Apple MacBookPro 7,1 */
87 { USB_DEVICE(0x05ac, 0x8213) },
88
0a79f674
CL		 89 /* Apple iMac11,1 */
90 { USB_DEVICE(0x05ac, 0x8215) },
91
9c047157
NI		 92 /* Apple MacBookPro6,2 */
93 { USB_DEVICE(0x05ac, 0x8218) },
94
3e3ede7d
EH		 95 /* Apple MacBookAir3,1, MacBookAir3,2 */
96 { USB_DEVICE(0x05ac, 0x821b) },
97
a63b723d
PAVM		 98 /* Apple MacBookAir4,1 */
99 { USB_DEVICE(0x05ac, 0x821f) },
100
88d377b6
MAP		 101 /* Apple MacBookPro8,2 */
102 { USB_DEVICE(0x05ac, 0x821a) },
103
f78b6826
JK		 104 /* Apple MacMini5,1 */
105 { USB_DEVICE(0x05ac, 0x8281) },
106
cfeb4145 107 /* AVM BlueFRITZ! USB v2.0 */
4fcef8ed 108 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE },
cfeb4145
MH		 109
110 /* Bluetooth Ultraport Module from IBM */
111 { USB_DEVICE(0x04bf, 0x030a) },
112
113 /* ALPS Modules with non-standard id */
114 { USB_DEVICE(0x044e, 0x3001) },
115 { USB_DEVICE(0x044e, 0x3002) },
116
117 /* Ericsson with non-standard id */
118 { USB_DEVICE(0x0bdb, 0x1002) },
119
120 /* Canyon CN-BTU1 with HID interfaces */
7a9d4020 121 { USB_DEVICE(0x0c10, 0x0000) },
cfeb4145 122
d13431ca
WJS		 123 /* Broadcom BCM20702A0 */
124 { USB_DEVICE(0x413c, 0x8197) },
125
d049f4e5
MH		 126 /* Broadcom BCM20702B0 (Dynex/Insignia) */
127 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM },
128
2faf71ce
SR		 129 /* Broadcom BCM43142A0 (Foxconn/Lenovo) */
130 { USB_DEVICE(0x105b, 0xe065), .driver_info = BTUSB_BCM_PATCHRAM },
131
98514036 132 /* Foxconn - Hon Hai */
6029ddc2
HS		 133 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01),
134 .driver_info = BTUSB_BCM_PATCHRAM },
98514036 135
8f0c304c
MD		 136 /* Lite-On Technology - Broadcom based */
137 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01),
138 .driver_info = BTUSB_BCM_PATCHRAM },
139
0b880062 140 /* Broadcom devices with vendor specific id */
10d4c673
PG		 141 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01),
142 .driver_info = BTUSB_BCM_PATCHRAM },
92c385f4 143
c2aef6e8 144 /* ASUSTek Computer - Broadcom based */
9a5abdaa
RD		 145 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01),
146 .driver_info = BTUSB_BCM_PATCHRAM },
c2aef6e8 147
5bcecf32 148 /* Belkin F8065bf - Broadcom based */
6331c686
MH		 149 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01),
150 .driver_info = BTUSB_BCM_PATCHRAM },
5bcecf32 151
9113bfd8 152 /* IMC Networks - Broadcom based */
6331c686
MH		 153 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01),
154 .driver_info = BTUSB_BCM_PATCHRAM },
9113bfd8 155
1623d0bf
DT		 156 /* Toshiba Corp - Broadcom based */
157 { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01),
158 .driver_info = BTUSB_BCM_PATCHRAM },
159
40df783d 160 /* Intel Bluetooth USB Bootloader (RAM module) */
d92f2df0
MH		 161 { USB_DEVICE(0x8087, 0x0a5a),
162 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
40df783d 163
5e23b923
MH		 164 { } /* Terminating entry */
165};
166
167MODULE_DEVICE_TABLE(usb, btusb_table);
168
54265202 169static const struct usb_device_id blacklist_table[] = {
cfeb4145
MH		 170 /* CSR BlueCore devices */
171 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
172
173 /* Broadcom BCM2033 without firmware */
174 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
175
6c9d435d
MH		 176 /* Broadcom BCM2045 devices */
177 { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 },
178
be93112a 179 /* Atheros 3011 with sflash firmware */
0b880062
AS		 180 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
181 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
2eeff0b4 182 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE },
0b880062 183 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
be93112a 184 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
6eda541d 185 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
2a7bcccc 186 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
be93112a 187
509e7861
CYC		 188 /* Atheros AR9285 Malbec with sflash firmware */
189 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
190
d9f51b51 191 /* Atheros 3012 with sflash firmware */
0b880062
AS		 192 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
193 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
194 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
195 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
196 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
692c062e 197 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
4b552bc9 198 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
0b880062
AS		 199 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
200 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
201 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
202 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
1fb4e09a 203 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
0b880062
AS		 204 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
205 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
7e730c7f 206 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
ec0810d2 207 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
134d3b35 208 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
0b880062 209 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
cd355ff0 210 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
0b880062 211 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
89d2975f 212 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
a735f9e2 213 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
d66629c1 214 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
2d25f8b4 215 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
94a32d10 216 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
07c0ea87 217 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
b131237c 218 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
1e56f1eb 219 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
0b880062 220 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
ebaf5795 221 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
18e0afab 222 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 },
0b880062 223 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
ac71311e 224 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
0a3658cc 225 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
ca79f232 226 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
0b880062
AS		 227 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
228 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
eed307e2 229 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
5b77a1f3 230 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
3bb30a7c 231 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
033efa92 232 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
fa2f1394 233 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
0d0cef61 234 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
d9f51b51 235
e9036e33
CYC		 236 /* Atheros AR5BBU12 with sflash firmware */
237 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
238
85d59726 239 /* Atheros AR5BBU12 with sflash firmware */
bc21fde2 240 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
0b880062 241 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
85d59726 242
3267c884 243 /* QCA ROME chipset */
2054111b 244 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME },
c9e44474
MH		 245 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME },
246 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME },
3267c884 247
cfeb4145 248 /* Broadcom BCM2035 */
7a9d4020 249 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
0b880062
AS		 250 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
251 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 252
253 /* Broadcom BCM2045 */
7a9d4020
MH		 254 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
255 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
bdbef3d6 256
cfeb4145 257 /* IBM/Lenovo ThinkPad with Broadcom chip */
7a9d4020
MH		 258 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
259 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 260
261 /* HP laptop with Broadcom chip */
7a9d4020 262 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 263
264 /* Dell laptop with Broadcom chip */
7a9d4020 265 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 266
5ddd4a60 267 /* Dell Wireless 370 and 410 devices */
7a9d4020 268 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
5ddd4a60 269 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 270
7a9d4020
MH		 271 /* Belkin F8T012 and F8T013 devices */
272 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
273 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 274
5ddd4a60
MH		 275 /* Asus WL-BTD202 device */
276 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
277
278 /* Kensington Bluetooth USB adapter */
279 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
280
cfeb4145
MH		 281 /* RTX Telecom based adapters with buggy SCO support */
282 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
283 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
284
285 /* CONWISE Technology based adapters with buggy SCO support */
286 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
287
4fcef8ed 288 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
2eeac871 289 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE },
4fcef8ed 290
cfeb4145
MH		 291 /* Digianswer devices */
292 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
293 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
294
295 /* CSR BlueCore Bluetooth Sniffer */
4f64fa80
MH		 296 { USB_DEVICE(0x0a12, 0x0002),
297 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
cfeb4145
MH		 298
299 /* Frontline ComProbe Bluetooth Sniffer */
4f64fa80
MH		 300 { USB_DEVICE(0x16d3, 0x0002),
301 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
cfeb4145 302
cb1ee89f
MH		 303 /* Marvell Bluetooth devices */
304 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
305 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
306
d0ac9eb7 307 /* Intel Bluetooth devices */
407550fe 308 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
dffd30ee 309 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
ef4e5e4a 310 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL },
cda0dd78 311 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_NEW },
dffd30ee 312
d0ac9eb7
MH		 313 /* Other Intel Bluetooth devices */
314 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
315 .driver_info = BTUSB_IGNORE },
ae8df494 316
a2698a9b
DD		 317 /* Realtek Bluetooth devices */
318 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
319 .driver_info = BTUSB_REALTEK },
320
321 /* Additional Realtek 8723AE Bluetooth devices */
322 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
323 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
324
325 /* Additional Realtek 8723BE Bluetooth devices */
326 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
327 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
328 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
329 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
330 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
331
332 /* Additional Realtek 8821AE Bluetooth devices */
333 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
334 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
335 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
336 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
337 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
338
4481c076
PP		 339 /* Silicon Wave based devices */
340 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE },
341
5e23b923
MH		 342 { } /* Terminating entry */
343};
344
9bfa35fe
MH		 345#define BTUSB_MAX_ISOC_FRAMES 10
346
5e23b923
MH		 347#define BTUSB_INTR_RUNNING 0
348#define BTUSB_BULK_RUNNING 1
9bfa35fe 349#define BTUSB_ISOC_RUNNING 2
7bee549e 350#define BTUSB_SUSPENDING 3
08b8b6c4 351#define BTUSB_DID_ISO_RESUME 4
cda0dd78
MH		 352#define BTUSB_BOOTLOADER 5
353#define BTUSB_DOWNLOADING 6
ce6bb929 354#define BTUSB_FIRMWARE_LOADED 7
cda0dd78 355#define BTUSB_FIRMWARE_FAILED 8
ce6bb929 356#define BTUSB_BOOTING 9
04b8c814 357#define BTUSB_RESET_RESUME 10
9d08f504 358#define BTUSB_DIAG_RUNNING 11
5e23b923
MH		 359
360struct btusb_data {
361 struct hci_dev *hdev;
362 struct usb_device *udev;
5fbcd260 363 struct usb_interface *intf;
9bfa35fe 364 struct usb_interface *isoc;
9d08f504 365 struct usb_interface *diag;
5e23b923 366
5e23b923
MH		 367 unsigned long flags;
368
369 struct work_struct work;
7bee549e 370 struct work_struct waker;
5e23b923 371
803b5836 372 struct usb_anchor deferred;
5e23b923 373 struct usb_anchor tx_anchor;
803b5836
MH		 374 int tx_in_flight;
375 spinlock_t txlock;
376
5e23b923
MH		 377 struct usb_anchor intr_anchor;
378 struct usb_anchor bulk_anchor;
9bfa35fe 379 struct usb_anchor isoc_anchor;
9d08f504 380 struct usb_anchor diag_anchor;
803b5836
MH		 381 spinlock_t rxlock;
382
383 struct sk_buff *evt_skb;
384 struct sk_buff *acl_skb;
385 struct sk_buff *sco_skb;
5e23b923
MH		 386
387 struct usb_endpoint_descriptor *intr_ep;
388 struct usb_endpoint_descriptor *bulk_tx_ep;
389 struct usb_endpoint_descriptor *bulk_rx_ep;
9bfa35fe
MH		 390 struct usb_endpoint_descriptor *isoc_tx_ep;
391 struct usb_endpoint_descriptor *isoc_rx_ep;
9d08f504
MH		 392 struct usb_endpoint_descriptor *diag_tx_ep;
393 struct usb_endpoint_descriptor *diag_rx_ep;
9bfa35fe 394
7a9d4020 395 __u8 cmdreq_type;
893ba544 396 __u8 cmdreq;
7a9d4020 397
43c2e57f 398 unsigned int sco_num;
9bfa35fe 399 int isoc_altsetting;
6a88adf2 400 int suspend_count;
2cbd3f5c 401
97307f51 402 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
2cbd3f5c 403 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
ace31982
KBYT		 404
405 int (*setup_on_usb)(struct hci_dev *hdev);
5e23b923
MH		 406};
407
803b5836
MH		 408static inline void btusb_free_frags(struct btusb_data *data)
409{
410 unsigned long flags;
411
412 spin_lock_irqsave(&data->rxlock, flags);
413
414 kfree_skb(data->evt_skb);
415 data->evt_skb = NULL;
416
417 kfree_skb(data->acl_skb);
418 data->acl_skb = NULL;
419
420 kfree_skb(data->sco_skb);
421 data->sco_skb = NULL;
422
423 spin_unlock_irqrestore(&data->rxlock, flags);
424}
425
1ffa4ad0
MH		 426static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
427{
803b5836
MH		 428 struct sk_buff *skb;
429 int err = 0;
430
431 spin_lock(&data->rxlock);
432 skb = data->evt_skb;
433
434 while (count) {
435 int len;
436
437 if (!skb) {
438 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
439 if (!skb) {
440 err = -ENOMEM;
441 break;
442 }
443
618e8bc2
MH		 444 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
445 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE;
803b5836
MH		 446 }
447
618e8bc2 448 len = min_t(uint, hci_skb_expect(skb), count);
803b5836
MH		 449 memcpy(skb_put(skb, len), buffer, len);
450
451 count -= len;
452 buffer += len;
618e8bc2 453 hci_skb_expect(skb) -= len;
803b5836
MH		 454
455 if (skb->len == HCI_EVENT_HDR_SIZE) {
456 /* Complete event header */
618e8bc2 457 hci_skb_expect(skb) = hci_event_hdr(skb)->plen;
803b5836 458
618e8bc2 459 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
803b5836
MH		 460 kfree_skb(skb);
461 skb = NULL;
462
463 err = -EILSEQ;
464 break;
465 }
466 }
467
618e8bc2 468 if (!hci_skb_expect(skb)) {
803b5836 469 /* Complete frame */
97307f51 470 data->recv_event(data->hdev, skb);
803b5836
MH		 471 skb = NULL;
472 }
473 }
474
475 data->evt_skb = skb;
476 spin_unlock(&data->rxlock);
477
478 return err;
1ffa4ad0
MH		 479}
480
481static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
482{
803b5836
MH		 483 struct sk_buff *skb;
484 int err = 0;
485
486 spin_lock(&data->rxlock);
487 skb = data->acl_skb;
488
489 while (count) {
490 int len;
491
492 if (!skb) {
493 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
494 if (!skb) {
495 err = -ENOMEM;
496 break;
497 }
498
618e8bc2
MH		 499 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT;
500 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE;
803b5836
MH		 501 }
502
618e8bc2 503 len = min_t(uint, hci_skb_expect(skb), count);
803b5836
MH		 504 memcpy(skb_put(skb, len), buffer, len);
505
506 count -= len;
507 buffer += len;
618e8bc2 508 hci_skb_expect(skb) -= len;
803b5836
MH		 509
510 if (skb->len == HCI_ACL_HDR_SIZE) {
511 __le16 dlen = hci_acl_hdr(skb)->dlen;
512
513 /* Complete ACL header */
618e8bc2 514 hci_skb_expect(skb) = __le16_to_cpu(dlen);
803b5836 515
618e8bc2 516 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
803b5836
MH		 517 kfree_skb(skb);
518 skb = NULL;
519
520 err = -EILSEQ;
521 break;
522 }
523 }
524
618e8bc2 525 if (!hci_skb_expect(skb)) {
803b5836
MH		 526 /* Complete frame */
527 hci_recv_frame(data->hdev, skb);
528 skb = NULL;
529 }
530 }
531
532 data->acl_skb = skb;
533 spin_unlock(&data->rxlock);
534
535 return err;
1ffa4ad0
MH		 536}
537
538static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
539{
803b5836
MH		 540 struct sk_buff *skb;
541 int err = 0;
542
543 spin_lock(&data->rxlock);
544 skb = data->sco_skb;
545
546 while (count) {
547 int len;
548
549 if (!skb) {
550 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
551 if (!skb) {
552 err = -ENOMEM;
553 break;
554 }
555
618e8bc2
MH		 556 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT;
557 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE;
803b5836
MH		 558 }
559
618e8bc2 560 len = min_t(uint, hci_skb_expect(skb), count);
803b5836
MH		 561 memcpy(skb_put(skb, len), buffer, len);
562
563 count -= len;
564 buffer += len;
618e8bc2 565 hci_skb_expect(skb) -= len;
803b5836
MH		 566
567 if (skb->len == HCI_SCO_HDR_SIZE) {
568 /* Complete SCO header */
618e8bc2 569 hci_skb_expect(skb) = hci_sco_hdr(skb)->dlen;
803b5836 570
618e8bc2 571 if (skb_tailroom(skb) < hci_skb_expect(skb)) {
803b5836
MH		 572 kfree_skb(skb);
573 skb = NULL;
574
575 err = -EILSEQ;
576 break;
577 }
578 }
579
618e8bc2 580 if (!hci_skb_expect(skb)) {
803b5836
MH		 581 /* Complete frame */
582 hci_recv_frame(data->hdev, skb);
583 skb = NULL;
584 }
585 }
586
587 data->sco_skb = skb;
588 spin_unlock(&data->rxlock);
589
590 return err;
1ffa4ad0
MH		 591}
592
5e23b923
MH		 593static void btusb_intr_complete(struct urb *urb)
594{
595 struct hci_dev *hdev = urb->context;
155961e8 596 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 597 int err;
598
89e7533d
MH		 599 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
600 urb->actual_length);
5e23b923
MH		 601
602 if (!test_bit(HCI_RUNNING, &hdev->flags))
603 return;
604
605 if (urb->status == 0) {
9bfa35fe
MH		 606 hdev->stat.byte_rx += urb->actual_length;
607
1ffa4ad0
MH		 608 if (btusb_recv_intr(data, urb->transfer_buffer,
609 urb->actual_length) < 0) {
5e23b923
MH		 610 BT_ERR("%s corrupted event packet", hdev->name);
611 hdev->stat.err_rx++;
612 }
85560c4a
CC		 613 } else if (urb->status == -ENOENT) {
614 /* Avoid suspend failed when usb_kill_urb */
615 return;
5e23b923
MH		 616 }
617
618 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
619 return;
620
7bee549e 621 usb_mark_last_busy(data->udev);
5e23b923
MH		 622 usb_anchor_urb(urb, &data->intr_anchor);
623
624 err = usb_submit_urb(urb, GFP_ATOMIC);
625 if (err < 0) {
4935f1c1
PB		 626 /* -EPERM: urb is being killed;
627 * -ENODEV: device got disconnected */
628 if (err != -EPERM && err != -ENODEV)
61faddf6 629 BT_ERR("%s urb %p failed to resubmit (%d)",
89e7533d 630 hdev->name, urb, -err);
5e23b923
MH		 631 usb_unanchor_urb(urb);
632 }
633}
634
2eda66f4 635static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
5e23b923 636{
155961e8 637 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 638 struct urb *urb;
639 unsigned char *buf;
640 unsigned int pipe;
641 int err, size;
642
643 BT_DBG("%s", hdev->name);
644
9bfa35fe
MH		 645 if (!data->intr_ep)
646 return -ENODEV;
647
2eda66f4 648 urb = usb_alloc_urb(0, mem_flags);
5e23b923
MH		 649 if (!urb)
650 return -ENOMEM;
651
652 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
653
2eda66f4 654 buf = kmalloc(size, mem_flags);
5e23b923
MH		 655 if (!buf) {
656 usb_free_urb(urb);
657 return -ENOMEM;
658 }
659
660 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
661
662 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
89e7533d 663 btusb_intr_complete, hdev, data->intr_ep->bInterval);
5e23b923
MH		 664
665 urb->transfer_flags |= URB_FREE_BUFFER;
666
667 usb_anchor_urb(urb, &data->intr_anchor);
668
2eda66f4 669 err = usb_submit_urb(urb, mem_flags);
5e23b923 670 if (err < 0) {
d4b8d1c9
PB		 671 if (err != -EPERM && err != -ENODEV)
672 BT_ERR("%s urb %p submission failed (%d)",
89e7533d 673 hdev->name, urb, -err);
5e23b923 674 usb_unanchor_urb(urb);
5e23b923
MH		 675 }
676
677 usb_free_urb(urb);
678
679 return err;
680}
681
682static void btusb_bulk_complete(struct urb *urb)
683{
684 struct hci_dev *hdev = urb->context;
155961e8 685 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 686 int err;
687
89e7533d
MH		 688 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
689 urb->actual_length);
5e23b923
MH		 690
691 if (!test_bit(HCI_RUNNING, &hdev->flags))
692 return;
693
694 if (urb->status == 0) {
9bfa35fe
MH		 695 hdev->stat.byte_rx += urb->actual_length;
696
2cbd3f5c 697 if (data->recv_bulk(data, urb->transfer_buffer,
1ffa4ad0 698 urb->actual_length) < 0) {
5e23b923
MH		 699 BT_ERR("%s corrupted ACL packet", hdev->name);
700 hdev->stat.err_rx++;
701 }
85560c4a
CC		 702 } else if (urb->status == -ENOENT) {
703 /* Avoid suspend failed when usb_kill_urb */
704 return;
5e23b923
MH		 705 }
706
707 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
708 return;
709
710 usb_anchor_urb(urb, &data->bulk_anchor);
652fd781 711 usb_mark_last_busy(data->udev);
5e23b923
MH		 712
713 err = usb_submit_urb(urb, GFP_ATOMIC);
714 if (err < 0) {
4935f1c1
PB		 715 /* -EPERM: urb is being killed;
716 * -ENODEV: device got disconnected */
717 if (err != -EPERM && err != -ENODEV)
61faddf6 718 BT_ERR("%s urb %p failed to resubmit (%d)",
89e7533d 719 hdev->name, urb, -err);
5e23b923
MH		 720 usb_unanchor_urb(urb);
721 }
722}
723
2eda66f4 724static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
5e23b923 725{
155961e8 726 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 727 struct urb *urb;
728 unsigned char *buf;
729 unsigned int pipe;
290ba200 730 int err, size = HCI_MAX_FRAME_SIZE;
5e23b923
MH		 731
732 BT_DBG("%s", hdev->name);
733
9bfa35fe
MH		 734 if (!data->bulk_rx_ep)
735 return -ENODEV;
736
2eda66f4 737 urb = usb_alloc_urb(0, mem_flags);
5e23b923
MH		 738 if (!urb)
739 return -ENOMEM;
740
2eda66f4 741 buf = kmalloc(size, mem_flags);
5e23b923
MH		 742 if (!buf) {
743 usb_free_urb(urb);
744 return -ENOMEM;
745 }
746
747 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
748
89e7533d
MH		 749 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
750 btusb_bulk_complete, hdev);
5e23b923
MH		 751
752 urb->transfer_flags |= URB_FREE_BUFFER;
753
7bee549e 754 usb_mark_last_busy(data->udev);
5e23b923
MH		 755 usb_anchor_urb(urb, &data->bulk_anchor);
756
2eda66f4 757 err = usb_submit_urb(urb, mem_flags);
5e23b923 758 if (err < 0) {
d4b8d1c9
PB		 759 if (err != -EPERM && err != -ENODEV)
760 BT_ERR("%s urb %p submission failed (%d)",
89e7533d 761 hdev->name, urb, -err);
5e23b923 762 usb_unanchor_urb(urb);
5e23b923
MH		 763 }
764
765 usb_free_urb(urb);
766
767 return err;
768}
769
9bfa35fe
MH		 770static void btusb_isoc_complete(struct urb *urb)
771{
772 struct hci_dev *hdev = urb->context;
155961e8 773 struct btusb_data *data = hci_get_drvdata(hdev);
9bfa35fe
MH		 774 int i, err;
775
89e7533d
MH		 776 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
777 urb->actual_length);
9bfa35fe
MH		 778
779 if (!test_bit(HCI_RUNNING, &hdev->flags))
780 return;
781
782 if (urb->status == 0) {
783 for (i = 0; i < urb->number_of_packets; i++) {
784 unsigned int offset = urb->iso_frame_desc[i].offset;
785 unsigned int length = urb->iso_frame_desc[i].actual_length;
786
787 if (urb->iso_frame_desc[i].status)
788 continue;
789
790 hdev->stat.byte_rx += length;
791
1ffa4ad0
MH		 792 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
793 length) < 0) {
9bfa35fe
MH		 794 BT_ERR("%s corrupted SCO packet", hdev->name);
795 hdev->stat.err_rx++;
796 }
797 }
85560c4a
CC		 798 } else if (urb->status == -ENOENT) {
799 /* Avoid suspend failed when usb_kill_urb */
800 return;
9bfa35fe
MH		 801 }
802
803 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
804 return;
805
806 usb_anchor_urb(urb, &data->isoc_anchor);
807
808 err = usb_submit_urb(urb, GFP_ATOMIC);
809 if (err < 0) {
4935f1c1
PB		 810 /* -EPERM: urb is being killed;
811 * -ENODEV: device got disconnected */
812 if (err != -EPERM && err != -ENODEV)
61faddf6 813 BT_ERR("%s urb %p failed to resubmit (%d)",
89e7533d 814 hdev->name, urb, -err);
9bfa35fe
MH		 815 usb_unanchor_urb(urb);
816 }
817}
818
42b16b3f 819static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
9bfa35fe
MH		 820{
821 int i, offset = 0;
822
823 BT_DBG("len %d mtu %d", len, mtu);
824
825 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
826 i++, offset += mtu, len -= mtu) {
827 urb->iso_frame_desc[i].offset = offset;
828 urb->iso_frame_desc[i].length = mtu;
829 }
830
831 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
832 urb->iso_frame_desc[i].offset = offset;
833 urb->iso_frame_desc[i].length = len;
834 i++;
835 }
836
837 urb->number_of_packets = i;
838}
839
2eda66f4 840static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
9bfa35fe 841{
155961e8 842 struct btusb_data *data = hci_get_drvdata(hdev);
9bfa35fe
MH		 843 struct urb *urb;
844 unsigned char *buf;
845 unsigned int pipe;
846 int err, size;
847
848 BT_DBG("%s", hdev->name);
849
850 if (!data->isoc_rx_ep)
851 return -ENODEV;
852
2eda66f4 853 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
9bfa35fe
MH		 854 if (!urb)
855 return -ENOMEM;
856
857 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
858 BTUSB_MAX_ISOC_FRAMES;
859
2eda66f4 860 buf = kmalloc(size, mem_flags);
9bfa35fe
MH		 861 if (!buf) {
862 usb_free_urb(urb);
863 return -ENOMEM;
864 }
865
866 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
867
fa0fb93f 868 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
89e7533d 869 hdev, data->isoc_rx_ep->bInterval);
9bfa35fe 870
89e7533d 871 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
9bfa35fe
MH		 872
873 __fill_isoc_descriptor(urb, size,
89e7533d 874 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
9bfa35fe
MH		 875
876 usb_anchor_urb(urb, &data->isoc_anchor);
877
2eda66f4 878 err = usb_submit_urb(urb, mem_flags);
9bfa35fe 879 if (err < 0) {
d4b8d1c9
PB		 880 if (err != -EPERM && err != -ENODEV)
881 BT_ERR("%s urb %p submission failed (%d)",
89e7533d 882 hdev->name, urb, -err);
9bfa35fe 883 usb_unanchor_urb(urb);
9bfa35fe
MH		 884 }
885
886 usb_free_urb(urb);
887
888 return err;
889}
890
9d08f504
MH		 891static void btusb_diag_complete(struct urb *urb)
892{
893 struct hci_dev *hdev = urb->context;
894 struct btusb_data *data = hci_get_drvdata(hdev);
895 int err;
896
897 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
898 urb->actual_length);
899
900 if (urb->status == 0) {
901 struct sk_buff *skb;
902
903 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC);
904 if (skb) {
905 memcpy(skb_put(skb, urb->actual_length),
906 urb->transfer_buffer, urb->actual_length);
907 hci_recv_diag(hdev, skb);
908 }
909 } else if (urb->status == -ENOENT) {
910 /* Avoid suspend failed when usb_kill_urb */
911 return;
912 }
913
914 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags))
915 return;
916
917 usb_anchor_urb(urb, &data->diag_anchor);
918 usb_mark_last_busy(data->udev);
919
920 err = usb_submit_urb(urb, GFP_ATOMIC);
921 if (err < 0) {
922 /* -EPERM: urb is being killed;
923 * -ENODEV: device got disconnected */
924 if (err != -EPERM && err != -ENODEV)
925 BT_ERR("%s urb %p failed to resubmit (%d)",
926 hdev->name, urb, -err);
927 usb_unanchor_urb(urb);
928 }
929}
930
931static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags)
932{
933 struct btusb_data *data = hci_get_drvdata(hdev);
934 struct urb *urb;
935 unsigned char *buf;
936 unsigned int pipe;
937 int err, size = HCI_MAX_FRAME_SIZE;
938
939 BT_DBG("%s", hdev->name);
940
941 if (!data->diag_rx_ep)
942 return -ENODEV;
943
944 urb = usb_alloc_urb(0, mem_flags);
945 if (!urb)
946 return -ENOMEM;
947
948 buf = kmalloc(size, mem_flags);
949 if (!buf) {
950 usb_free_urb(urb);
951 return -ENOMEM;
952 }
953
954 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress);
955
956 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
957 btusb_diag_complete, hdev);
958
959 urb->transfer_flags |= URB_FREE_BUFFER;
960
961 usb_mark_last_busy(data->udev);
962 usb_anchor_urb(urb, &data->diag_anchor);
963
964 err = usb_submit_urb(urb, mem_flags);
965 if (err < 0) {
966 if (err != -EPERM && err != -ENODEV)
967 BT_ERR("%s urb %p submission failed (%d)",
968 hdev->name, urb, -err);
969 usb_unanchor_urb(urb);
970 }
971
972 usb_free_urb(urb);
973
974 return err;
975}
976
5e23b923 977static void btusb_tx_complete(struct urb *urb)
7bee549e
ON		 978{
979 struct sk_buff *skb = urb->context;
89e7533d 980 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
155961e8 981 struct btusb_data *data = hci_get_drvdata(hdev);
7bee549e 982
89e7533d
MH		 983 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
984 urb->actual_length);
7bee549e
ON		 985
986 if (!test_bit(HCI_RUNNING, &hdev->flags))
987 goto done;
988
989 if (!urb->status)
990 hdev->stat.byte_tx += urb->transfer_buffer_length;
991 else
992 hdev->stat.err_tx++;
993
994done:
995 spin_lock(&data->txlock);
996 data->tx_in_flight--;
997 spin_unlock(&data->txlock);
998
999 kfree(urb->setup_packet);
1000
1001 kfree_skb(skb);
1002}
1003
1004static void btusb_isoc_tx_complete(struct urb *urb)
5e23b923
MH		 1005{
1006 struct sk_buff *skb = urb->context;
89e7533d 1007 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
5e23b923 1008
89e7533d
MH		 1009 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1010 urb->actual_length);
5e23b923
MH		 1011
1012 if (!test_bit(HCI_RUNNING, &hdev->flags))
1013 goto done;
1014
1015 if (!urb->status)
1016 hdev->stat.byte_tx += urb->transfer_buffer_length;
1017 else
1018 hdev->stat.err_tx++;
1019
1020done:
1021 kfree(urb->setup_packet);
1022
1023 kfree_skb(skb);
1024}
1025
1026static int btusb_open(struct hci_dev *hdev)
1027{
155961e8 1028 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 1029 int err;
1030
1031 BT_DBG("%s", hdev->name);
1032
ace31982
KBYT		 1033 /* Patching USB firmware files prior to starting any URBs of HCI path
1034 * It is more safe to use USB bulk channel for downloading USB patch
1035 */
1036 if (data->setup_on_usb) {
1037 err = data->setup_on_usb(hdev);
eb50042f 1038 if (err < 0)
ace31982
KBYT		 1039 return err;
1040 }
1041
7bee549e
ON		 1042 err = usb_autopm_get_interface(data->intf);
1043 if (err < 0)
1044 return err;
1045
1046 data->intf->needs_remote_wakeup = 1;
1047
5e23b923 1048 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
7bee549e 1049 goto done;
5e23b923 1050
2eda66f4 1051 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
43c2e57f
MH		 1052 if (err < 0)
1053 goto failed;
1054
1055 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
5e23b923 1056 if (err < 0) {
43c2e57f
MH		 1057 usb_kill_anchored_urbs(&data->intr_anchor);
1058 goto failed;
5e23b923
MH		 1059 }
1060
43c2e57f
MH		 1061 set_bit(BTUSB_BULK_RUNNING, &data->flags);
1062 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1063
9d08f504
MH		 1064 if (data->diag) {
1065 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL))
1066 set_bit(BTUSB_DIAG_RUNNING, &data->flags);
1067 }
1068
7bee549e
ON		 1069done:
1070 usb_autopm_put_interface(data->intf);
43c2e57f
MH		 1071 return 0;
1072
1073failed:
1074 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
7bee549e 1075 usb_autopm_put_interface(data->intf);
5e23b923
MH		 1076 return err;
1077}
1078
7bee549e
ON		 1079static void btusb_stop_traffic(struct btusb_data *data)
1080{
1081 usb_kill_anchored_urbs(&data->intr_anchor);
1082 usb_kill_anchored_urbs(&data->bulk_anchor);
1083 usb_kill_anchored_urbs(&data->isoc_anchor);
9d08f504 1084 usb_kill_anchored_urbs(&data->diag_anchor);
7bee549e
ON		 1085}
1086
5e23b923
MH		 1087static int btusb_close(struct hci_dev *hdev)
1088{
155961e8 1089 struct btusb_data *data = hci_get_drvdata(hdev);
7bee549e 1090 int err;
5e23b923
MH		 1091
1092 BT_DBG("%s", hdev->name);
1093
e8c3c3d2 1094 cancel_work_sync(&data->work);
404291ac 1095 cancel_work_sync(&data->waker);
e8c3c3d2 1096
9bfa35fe 1097 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
5e23b923 1098 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
5e23b923 1099 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
9d08f504 1100 clear_bit(BTUSB_DIAG_RUNNING, &data->flags);
7bee549e
ON		 1101
1102 btusb_stop_traffic(data);
803b5836
MH		 1103 btusb_free_frags(data);
1104
7bee549e
ON		 1105 err = usb_autopm_get_interface(data->intf);
1106 if (err < 0)
7b8e2c1d 1107 goto failed;
7bee549e
ON		 1108
1109 data->intf->needs_remote_wakeup = 0;
1110 usb_autopm_put_interface(data->intf);
5e23b923 1111
7b8e2c1d
ON		 1112failed:
1113 usb_scuttle_anchored_urbs(&data->deferred);
5e23b923
MH		 1114 return 0;
1115}
1116
1117static int btusb_flush(struct hci_dev *hdev)
1118{
155961e8 1119 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 1120
1121 BT_DBG("%s", hdev->name);
1122
1123 usb_kill_anchored_urbs(&data->tx_anchor);
803b5836 1124 btusb_free_frags(data);
5e23b923
MH		 1125
1126 return 0;
1127}
1128
047b2ec8 1129static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
5e23b923 1130{
155961e8 1131 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 1132 struct usb_ctrlrequest *dr;
1133 struct urb *urb;
1134 unsigned int pipe;
5e23b923 1135
047b2ec8
MH		 1136 urb = usb_alloc_urb(0, GFP_KERNEL);
1137 if (!urb)
1138 return ERR_PTR(-ENOMEM);
5e23b923 1139
047b2ec8
MH		 1140 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
1141 if (!dr) {
1142 usb_free_urb(urb);
1143 return ERR_PTR(-ENOMEM);
1144 }
5e23b923 1145
047b2ec8 1146 dr->bRequestType = data->cmdreq_type;
893ba544 1147 dr->bRequest = data->cmdreq;
047b2ec8
MH		 1148 dr->wIndex = 0;
1149 dr->wValue = 0;
1150 dr->wLength = __cpu_to_le16(skb->len);
7bd8f09f 1151
047b2ec8 1152 pipe = usb_sndctrlpipe(data->udev, 0x00);
5e23b923 1153
89e7533d 1154 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
047b2ec8 1155 skb->data, skb->len, btusb_tx_complete, skb);
5e23b923 1156
89e7533d 1157 skb->dev = (void *)hdev;
5e23b923 1158
047b2ec8
MH		 1159 return urb;
1160}
5e23b923 1161
047b2ec8
MH		 1162static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
1163{
1164 struct btusb_data *data = hci_get_drvdata(hdev);
1165 struct urb *urb;
1166 unsigned int pipe;
5e23b923 1167
047b2ec8
MH		 1168 if (!data->bulk_tx_ep)
1169 return ERR_PTR(-ENODEV);
9bfa35fe 1170
047b2ec8
MH		 1171 urb = usb_alloc_urb(0, GFP_KERNEL);
1172 if (!urb)
1173 return ERR_PTR(-ENOMEM);
5e23b923 1174
047b2ec8 1175 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
5e23b923 1176
047b2ec8
MH		 1177 usb_fill_bulk_urb(urb, data->udev, pipe,
1178 skb->data, skb->len, btusb_tx_complete, skb);
5e23b923 1179
89e7533d 1180 skb->dev = (void *)hdev;
5e23b923 1181
047b2ec8
MH		 1182 return urb;
1183}
9bfa35fe 1184
047b2ec8
MH		 1185static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
1186{
1187 struct btusb_data *data = hci_get_drvdata(hdev);
1188 struct urb *urb;
1189 unsigned int pipe;
9bfa35fe 1190
047b2ec8
MH		 1191 if (!data->isoc_tx_ep)
1192 return ERR_PTR(-ENODEV);
9bfa35fe 1193
047b2ec8
MH		 1194 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
1195 if (!urb)
1196 return ERR_PTR(-ENOMEM);
9bfa35fe 1197
047b2ec8 1198 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
9bfa35fe 1199
047b2ec8
MH		 1200 usb_fill_int_urb(urb, data->udev, pipe,
1201 skb->data, skb->len, btusb_isoc_tx_complete,
1202 skb, data->isoc_tx_ep->bInterval);
9bfa35fe 1203
047b2ec8 1204 urb->transfer_flags = URB_ISO_ASAP;
5e23b923 1205
047b2ec8
MH		 1206 __fill_isoc_descriptor(urb, skb->len,
1207 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
5e23b923 1208
89e7533d 1209 skb->dev = (void *)hdev;
047b2ec8
MH		 1210
1211 return urb;
1212}
1213
1214static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
1215{
1216 struct btusb_data *data = hci_get_drvdata(hdev);
1217 int err;
7bee549e 1218
5e23b923
MH		 1219 usb_anchor_urb(urb, &data->tx_anchor);
1220
e9753eff 1221 err = usb_submit_urb(urb, GFP_KERNEL);
5e23b923 1222 if (err < 0) {
5a9b80e2
PB		 1223 if (err != -EPERM && err != -ENODEV)
1224 BT_ERR("%s urb %p submission failed (%d)",
89e7533d 1225 hdev->name, urb, -err);
5e23b923
MH		 1226 kfree(urb->setup_packet);
1227 usb_unanchor_urb(urb);
7bee549e
ON		 1228 } else {
1229 usb_mark_last_busy(data->udev);
5e23b923
MH		 1230 }
1231
54a8a79c 1232 usb_free_urb(urb);
5e23b923
MH		 1233 return err;
1234}
1235
047b2ec8
MH		 1236static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
1237{
1238 struct btusb_data *data = hci_get_drvdata(hdev);
1239 unsigned long flags;
1240 bool suspending;
1241
1242 spin_lock_irqsave(&data->txlock, flags);
1243 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
1244 if (!suspending)
1245 data->tx_in_flight++;
1246 spin_unlock_irqrestore(&data->txlock, flags);
1247
1248 if (!suspending)
1249 return submit_tx_urb(hdev, urb);
1250
1251 usb_anchor_urb(urb, &data->deferred);
1252 schedule_work(&data->waker);
1253
1254 usb_free_urb(urb);
1255 return 0;
1256}
1257
1258static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
1259{
1260 struct urb *urb;
1261
1262 BT_DBG("%s", hdev->name);
1263
618e8bc2 1264 switch (hci_skb_pkt_type(skb)) {
047b2ec8
MH		 1265 case HCI_COMMAND_PKT:
1266 urb = alloc_ctrl_urb(hdev, skb);
1267 if (IS_ERR(urb))
1268 return PTR_ERR(urb);
1269
1270 hdev->stat.cmd_tx++;
1271 return submit_or_queue_tx_urb(hdev, urb);
1272
1273 case HCI_ACLDATA_PKT:
1274 urb = alloc_bulk_urb(hdev, skb);
1275 if (IS_ERR(urb))
1276 return PTR_ERR(urb);
1277
1278 hdev->stat.acl_tx++;
1279 return submit_or_queue_tx_urb(hdev, urb);
1280
1281 case HCI_SCODATA_PKT:
1282 if (hci_conn_num(hdev, SCO_LINK) < 1)
1283 return -ENODEV;
1284
1285 urb = alloc_isoc_urb(hdev, skb);
1286 if (IS_ERR(urb))
1287 return PTR_ERR(urb);
1288
1289 hdev->stat.sco_tx++;
1290 return submit_tx_urb(hdev, urb);
1291 }
1292
1293 return -EILSEQ;
1294}
1295
5e23b923
MH		 1296static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
1297{
155961e8 1298 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 1299
1300 BT_DBG("%s evt %d", hdev->name, evt);
1301
014f7bc7
MH		 1302 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
1303 data->sco_num = hci_conn_num(hdev, SCO_LINK);
43c2e57f 1304 schedule_work(&data->work);
a780efa8 1305 }
5e23b923
MH		 1306}
1307
42b16b3f 1308static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
9bfa35fe 1309{
155961e8 1310 struct btusb_data *data = hci_get_drvdata(hdev);
9bfa35fe
MH		 1311 struct usb_interface *intf = data->isoc;
1312 struct usb_endpoint_descriptor *ep_desc;
1313 int i, err;
1314
1315 if (!data->isoc)
1316 return -ENODEV;
1317
1318 err = usb_set_interface(data->udev, 1, altsetting);
1319 if (err < 0) {
1320 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
1321 return err;
1322 }
1323
1324 data->isoc_altsetting = altsetting;
1325
1326 data->isoc_tx_ep = NULL;
1327 data->isoc_rx_ep = NULL;
1328
1329 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1330 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1331
1332 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
1333 data->isoc_tx_ep = ep_desc;
1334 continue;
1335 }
1336
1337 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
1338 data->isoc_rx_ep = ep_desc;
1339 continue;
1340 }
1341 }
1342
1343 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
1344 BT_ERR("%s invalid SCO descriptors", hdev->name);
1345 return -ENODEV;
1346 }
1347
1348 return 0;
1349}
1350
5e23b923
MH		 1351static void btusb_work(struct work_struct *work)
1352{
1353 struct btusb_data *data = container_of(work, struct btusb_data, work);
1354 struct hci_dev *hdev = data->hdev;
f4001d28 1355 int new_alts;
7bee549e 1356 int err;
5e23b923 1357
014f7bc7 1358 if (data->sco_num > 0) {
08b8b6c4 1359 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
8efdd0cd 1360 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
7bee549e
ON		 1361 if (err < 0) {
1362 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1363 usb_kill_anchored_urbs(&data->isoc_anchor);
1364 return;
1365 }
1366
08b8b6c4 1367 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
7bee549e 1368 }
f4001d28
MA		 1369
1370 if (hdev->voice_setting & 0x0020) {
1371 static const int alts[3] = { 2, 4, 5 };
89e7533d 1372
014f7bc7 1373 new_alts = alts[data->sco_num - 1];
f4001d28 1374 } else {
014f7bc7 1375 new_alts = data->sco_num;
f4001d28
MA		 1376 }
1377
1378 if (data->isoc_altsetting != new_alts) {
f6fc86f2
KP		 1379 unsigned long flags;
1380
9bfa35fe
MH		 1381 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1382 usb_kill_anchored_urbs(&data->isoc_anchor);
1383
8f9d02f4
KP		 1384 /* When isochronous alternate setting needs to be
1385 * changed, because SCO connection has been added
1386 * or removed, a packet fragment may be left in the
1387 * reassembling state. This could lead to wrongly
1388 * assembled fragments.
1389 *
1390 * Clear outstanding fragment when selecting a new
1391 * alternate setting.
1392 */
f6fc86f2 1393 spin_lock_irqsave(&data->rxlock, flags);
8f9d02f4
KP		 1394 kfree_skb(data->sco_skb);
1395 data->sco_skb = NULL;
f6fc86f2 1396 spin_unlock_irqrestore(&data->rxlock, flags);
8f9d02f4 1397
f4001d28 1398 if (__set_isoc_interface(hdev, new_alts) < 0)
9bfa35fe
MH		 1399 return;
1400 }
1401
1402 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2eda66f4 1403 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
9bfa35fe
MH		 1404 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1405 else
2eda66f4 1406 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
9bfa35fe
MH		 1407 }
1408 } else {
1409 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1410 usb_kill_anchored_urbs(&data->isoc_anchor);
1411
1412 __set_isoc_interface(hdev, 0);
08b8b6c4 1413 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
8efdd0cd 1414 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
5e23b923
MH		 1415 }
1416}
1417
7bee549e
ON		 1418static void btusb_waker(struct work_struct *work)
1419{
1420 struct btusb_data *data = container_of(work, struct btusb_data, waker);
1421 int err;
1422
1423 err = usb_autopm_get_interface(data->intf);
1424 if (err < 0)
1425 return;
1426
1427 usb_autopm_put_interface(data->intf);
1428}
1429
9f8f962c
MH		 1430static int btusb_setup_bcm92035(struct hci_dev *hdev)
1431{
1432 struct sk_buff *skb;
1433 u8 val = 0x00;
1434
1435 BT_DBG("%s", hdev->name);
1436
1437 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
1438 if (IS_ERR(skb))
1439 BT_ERR("BCM92035 command failed (%ld)", -PTR_ERR(skb));
1440 else
1441 kfree_skb(skb);
1442
1443 return 0;
1444}
1445
81cac64b
MH		 1446static int btusb_setup_csr(struct hci_dev *hdev)
1447{
1448 struct hci_rp_read_local_version *rp;
1449 struct sk_buff *skb;
81cac64b
MH		 1450
1451 BT_DBG("%s", hdev->name);
1452
7cd84d72
MH		 1453 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1454 HCI_INIT_TIMEOUT);
1455 if (IS_ERR(skb)) {
1456 int err = PTR_ERR(skb);
1457 BT_ERR("%s: CSR: Local version failed (%d)", hdev->name, err);
1458 return err;
1459 }
1460
1461 if (skb->len != sizeof(struct hci_rp_read_local_version)) {
1462 BT_ERR("%s: CSR: Local version length mismatch", hdev->name);
1463 kfree_skb(skb);
1464 return -EIO;
1465 }
81cac64b 1466
89e7533d 1467 rp = (struct hci_rp_read_local_version *)skb->data;
81cac64b 1468
6cafcd95
JH		 1469 /* Detect controllers which aren't real CSR ones. */
1470 if (le16_to_cpu(rp->manufacturer) != 10 ||
1471 le16_to_cpu(rp->lmp_subver) == 0x0c5c) {
9641d343
MH		 1472 /* Clear the reset quirk since this is not an actual
1473 * early Bluetooth 1.1 device from CSR.
1474 */
1475 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
81cac64b 1476
9641d343
MH		 1477 /* These fake CSR controllers have all a broken
1478 * stored link key handling and so just disable it.
1479 */
1480 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
1481 }
81cac64b
MH		 1482
1483 kfree_skb(skb);
1484
9641d343 1485 return 0;
81cac64b
MH		 1486}
1487
dffd30ee 1488static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev,
89e7533d 1489 struct intel_version *ver)
dffd30ee
THJA		 1490{
1491 const struct firmware *fw;
1492 char fwname[64];
1493 int ret;
1494
1495 snprintf(fwname, sizeof(fwname),
1496 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq",
1497 ver->hw_platform, ver->hw_variant, ver->hw_revision,
1498 ver->fw_variant, ver->fw_revision, ver->fw_build_num,
1499 ver->fw_build_ww, ver->fw_build_yy);
1500
1501 ret = request_firmware(&fw, fwname, &hdev->dev);
1502 if (ret < 0) {
1503 if (ret == -EINVAL) {
1504 BT_ERR("%s Intel firmware file request failed (%d)",
1505 hdev->name, ret);
1506 return NULL;
1507 }
1508
1509 BT_ERR("%s failed to open Intel firmware file: %s(%d)",
1510 hdev->name, fwname, ret);
1511
1512 /* If the correct firmware patch file is not found, use the
1513 * default firmware patch file instead
1514 */
1515 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq",
1516 ver->hw_platform, ver->hw_variant);
1517 if (request_firmware(&fw, fwname, &hdev->dev) < 0) {
1518 BT_ERR("%s failed to open default Intel fw file: %s",
1519 hdev->name, fwname);
1520 return NULL;
1521 }
1522 }
1523
1524 BT_INFO("%s: Intel Bluetooth firmware file: %s", hdev->name, fwname);
1525
1526 return fw;
1527}
1528
1529static int btusb_setup_intel_patching(struct hci_dev *hdev,
1530 const struct firmware *fw,
1531 const u8 **fw_ptr, int *disable_patch)
1532{
1533 struct sk_buff *skb;
1534 struct hci_command_hdr *cmd;
1535 const u8 *cmd_param;
1536 struct hci_event_hdr *evt = NULL;
1537 const u8 *evt_param = NULL;
1538 int remain = fw->size - (*fw_ptr - fw->data);
1539
1540 /* The first byte indicates the types of the patch command or event.
1541 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes
1542 * in the current firmware buffer doesn't start with 0x01 or
1543 * the size of remain buffer is smaller than HCI command header,
1544 * the firmware file is corrupted and it should stop the patching
1545 * process.
1546 */
1547 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) {
1548 BT_ERR("%s Intel fw corrupted: invalid cmd read", hdev->name);
1549 return -EINVAL;
1550 }
1551 (*fw_ptr)++;
1552 remain--;
1553
1554 cmd = (struct hci_command_hdr *)(*fw_ptr);
1555 *fw_ptr += sizeof(*cmd);
1556 remain -= sizeof(*cmd);
1557
1558 /* Ensure that the remain firmware data is long enough than the length
1559 * of command parameter. If not, the firmware file is corrupted.
1560 */
1561 if (remain < cmd->plen) {
1562 BT_ERR("%s Intel fw corrupted: invalid cmd len", hdev->name);
1563 return -EFAULT;
1564 }
1565
1566 /* If there is a command that loads a patch in the firmware
1567 * file, then enable the patch upon success, otherwise just
1568 * disable the manufacturer mode, for example patch activation
1569 * is not required when the default firmware patch file is used
1570 * because there are no patch data to load.
1571 */
1572 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e)
1573 *disable_patch = 0;
1574
1575 cmd_param = *fw_ptr;
1576 *fw_ptr += cmd->plen;
1577 remain -= cmd->plen;
1578
1579 /* This reads the expected events when the above command is sent to the
1580 * device. Some vendor commands expects more than one events, for
1581 * example command status event followed by vendor specific event.
1582 * For this case, it only keeps the last expected event. so the command
1583 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of
1584 * last expected event.
1585 */
1586 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) {
1587 (*fw_ptr)++;
1588 remain--;
1589
1590 evt = (struct hci_event_hdr *)(*fw_ptr);
1591 *fw_ptr += sizeof(*evt);
1592 remain -= sizeof(*evt);
1593
1594 if (remain < evt->plen) {
1595 BT_ERR("%s Intel fw corrupted: invalid evt len",
1596 hdev->name);
1597 return -EFAULT;
1598 }
1599
1600 evt_param = *fw_ptr;
1601 *fw_ptr += evt->plen;
1602 remain -= evt->plen;
1603 }
1604
1605 /* Every HCI commands in the firmware file has its correspond event.
1606 * If event is not found or remain is smaller than zero, the firmware
1607 * file is corrupted.
1608 */
1609 if (!evt || !evt_param || remain < 0) {
1610 BT_ERR("%s Intel fw corrupted: invalid evt read", hdev->name);
1611 return -EFAULT;
1612 }
1613
1614 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen,
1615 cmd_param, evt->evt, HCI_INIT_TIMEOUT);
1616 if (IS_ERR(skb)) {
1617 BT_ERR("%s sending Intel patch command (0x%4.4x) failed (%ld)",
1618 hdev->name, cmd->opcode, PTR_ERR(skb));
d9c78e97 1619 return PTR_ERR(skb);
dffd30ee
THJA		 1620 }
1621
1622 /* It ensures that the returned event matches the event data read from
1623 * the firmware file. At fist, it checks the length and then
1624 * the contents of the event.
1625 */
1626 if (skb->len != evt->plen) {
1627 BT_ERR("%s mismatch event length (opcode 0x%4.4x)", hdev->name,
1628 le16_to_cpu(cmd->opcode));
1629 kfree_skb(skb);
1630 return -EFAULT;
1631 }
1632
1633 if (memcmp(skb->data, evt_param, evt->plen)) {
1634 BT_ERR("%s mismatch event parameter (opcode 0x%4.4x)",
1635 hdev->name, le16_to_cpu(cmd->opcode));
1636 kfree_skb(skb);
1637 return -EFAULT;
1638 }
1639 kfree_skb(skb);
1640
1641 return 0;
1642}
1643
1644static int btusb_setup_intel(struct hci_dev *hdev)
1645{
1646 struct sk_buff *skb;
1647 const struct firmware *fw;
1648 const u8 *fw_ptr;
28dc4b92 1649 int disable_patch, err;
6c483de1 1650 struct intel_version ver;
dffd30ee 1651
dffd30ee
THJA		 1652 BT_DBG("%s", hdev->name);
1653
1654 /* The controller has a bug with the first HCI command sent to it
1655 * returning number of completed commands as zero. This would stall the
1656 * command processing in the Bluetooth core.
1657 *
1658 * As a workaround, send HCI Reset command first which will reset the
1659 * number of completed commands and allow normal command processing
1660 * from now on.
1661 */
1662 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1663 if (IS_ERR(skb)) {
1664 BT_ERR("%s sending initial HCI reset command failed (%ld)",
1665 hdev->name, PTR_ERR(skb));
d9c78e97 1666 return PTR_ERR(skb);
dffd30ee
THJA		 1667 }
1668 kfree_skb(skb);
1669
1670 /* Read Intel specific controller version first to allow selection of
1671 * which firmware file to load.
1672 *
1673 * The returned information are hardware variant and revision plus
1674 * firmware variant, revision and build number.
1675 */
6c483de1
LP		 1676 err = btintel_read_version(hdev, &ver);
1677 if (err)
1678 return err;
dffd30ee
THJA		 1679
1680 BT_INFO("%s: read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
6c483de1
LP		 1681 hdev->name, ver.hw_platform, ver.hw_variant, ver.hw_revision,
1682 ver.fw_variant, ver.fw_revision, ver.fw_build_num,
1683 ver.fw_build_ww, ver.fw_build_yy, ver.fw_patch_num);
dffd30ee
THJA		 1684
1685 /* fw_patch_num indicates the version of patch the device currently
1686 * have. If there is no patch data in the device, it is always 0x00.
5075edae 1687 * So, if it is other than 0x00, no need to patch the device again.
dffd30ee 1688 */
6c483de1 1689 if (ver.fw_patch_num) {
dffd30ee 1690 BT_INFO("%s: Intel device is already patched. patch num: %02x",
6c483de1 1691 hdev->name, ver.fw_patch_num);
213445b2 1692 goto complete;
dffd30ee
THJA		 1693 }
1694
1695 /* Opens the firmware patch file based on the firmware version read
1696 * from the controller. If it fails to open the matching firmware
1697 * patch file, it tries to open the default firmware patch file.
1698 * If no patch file is found, allow the device to operate without
1699 * a patch.
1700 */
6c483de1
LP		 1701 fw = btusb_setup_intel_get_fw(hdev, &ver);
1702 if (!fw)
213445b2 1703 goto complete;
dffd30ee
THJA		 1704 fw_ptr = fw->data;
1705
28dc4b92 1706 /* Enable the manufacturer mode of the controller.
dffd30ee
THJA		 1707 * Only while this mode is enabled, the driver can download the
1708 * firmware patch data and configuration parameters.
1709 */
28dc4b92
LP		 1710 err = btintel_enter_mfg(hdev);
1711 if (err) {
dffd30ee 1712 release_firmware(fw);
28dc4b92 1713 return err;
dffd30ee
THJA		 1714 }
1715
dffd30ee
THJA		 1716 disable_patch = 1;
1717
1718 /* The firmware data file consists of list of Intel specific HCI
1719 * commands and its expected events. The first byte indicates the
1720 * type of the message, either HCI command or HCI event.
1721 *
1722 * It reads the command and its expected event from the firmware file,
1723 * and send to the controller. Once __hci_cmd_sync_ev() returns,
1724 * the returned event is compared with the event read from the firmware
1725 * file and it will continue until all the messages are downloaded to
1726 * the controller.
1727 *
1728 * Once the firmware patching is completed successfully,
1729 * the manufacturer mode is disabled with reset and activating the
1730 * downloaded patch.
1731 *
1732 * If the firmware patching fails, the manufacturer mode is
1733 * disabled with reset and deactivating the patch.
1734 *
1735 * If the default patch file is used, no reset is done when disabling
1736 * the manufacturer.
1737 */
1738 while (fw->size > fw_ptr - fw->data) {
1739 int ret;
1740
1741 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr,
1742 &disable_patch);
1743 if (ret < 0)
1744 goto exit_mfg_deactivate;
1745 }
1746
1747 release_firmware(fw);
1748
1749 if (disable_patch)
1750 goto exit_mfg_disable;
1751
1752 /* Patching completed successfully and disable the manufacturer mode
1753 * with reset and activate the downloaded firmware patches.
1754 */
28dc4b92
LP		 1755 err = btintel_exit_mfg(hdev, true, true);
1756 if (err)
1757 return err;
dffd30ee
THJA		 1758
1759 BT_INFO("%s: Intel Bluetooth firmware patch completed and activated",
1760 hdev->name);
1761
213445b2 1762 goto complete;
dffd30ee
THJA		 1763
1764exit_mfg_disable:
1765 /* Disable the manufacturer mode without reset */
28dc4b92
LP		 1766 err = btintel_exit_mfg(hdev, false, false);
1767 if (err)
1768 return err;
dffd30ee
THJA		 1769
1770 BT_INFO("%s: Intel Bluetooth firmware patch completed", hdev->name);
40cb0984 1771
213445b2 1772 goto complete;
dffd30ee
THJA		 1773
1774exit_mfg_deactivate:
1775 release_firmware(fw);
1776
1777 /* Patching failed. Disable the manufacturer mode with reset and
1778 * deactivate the downloaded firmware patches.
1779 */
28dc4b92
LP		 1780 err = btintel_exit_mfg(hdev, true, false);
1781 if (err)
1782 return err;
dffd30ee
THJA		 1783
1784 BT_INFO("%s: Intel Bluetooth firmware patch completed and deactivated",
1785 hdev->name);
1786
213445b2
MH		 1787complete:
1788 /* Set the event mask for Intel specific vendor events. This enables
1789 * a few extra events that are useful during general operation.
1790 */
1791 btintel_set_event_mask_mfg(hdev, false);
1792
4185a0f5 1793 btintel_check_bdaddr(hdev);
dffd30ee
THJA		 1794 return 0;
1795}
1796
cda0dd78
MH		 1797static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
1798{
1799 struct sk_buff *skb;
1800 struct hci_event_hdr *hdr;
1801 struct hci_ev_cmd_complete *evt;
1802
1803 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_ATOMIC);
1804 if (!skb)
1805 return -ENOMEM;
1806
1807 hdr = (struct hci_event_hdr *)skb_put(skb, sizeof(*hdr));
1808 hdr->evt = HCI_EV_CMD_COMPLETE;
1809 hdr->plen = sizeof(*evt) + 1;
1810
1811 evt = (struct hci_ev_cmd_complete *)skb_put(skb, sizeof(*evt));
1812 evt->ncmd = 0x01;
1813 evt->opcode = cpu_to_le16(opcode);
1814
1815 *skb_put(skb, 1) = 0x00;
1816
618e8bc2 1817 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
cda0dd78
MH		 1818
1819 return hci_recv_frame(hdev, skb);
1820}
1821
1822static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
1823 int count)
1824{
1825 /* When the device is in bootloader mode, then it can send
1826 * events via the bulk endpoint. These events are treated the
1827 * same way as the ones received from the interrupt endpoint.
1828 */
1829 if (test_bit(BTUSB_BOOTLOADER, &data->flags))
1830 return btusb_recv_intr(data, buffer, count);
1831
1832 return btusb_recv_bulk(data, buffer, count);
1833}
1834
ccd6da2a
MH		 1835static void btusb_intel_bootup(struct btusb_data *data, const void *ptr,
1836 unsigned int len)
1837{
1838 const struct intel_bootup *evt = ptr;
1839
1840 if (len != sizeof(*evt))
1841 return;
1842
1843 if (test_and_clear_bit(BTUSB_BOOTING, &data->flags)) {
1844 smp_mb__after_atomic();
1845 wake_up_bit(&data->flags, BTUSB_BOOTING);
1846 }
1847}
1848
1849static void btusb_intel_secure_send_result(struct btusb_data *data,
1850 const void *ptr, unsigned int len)
1851{
1852 const struct intel_secure_send_result *evt = ptr;
1853
1854 if (len != sizeof(*evt))
1855 return;
1856
1857 if (evt->result)
1858 set_bit(BTUSB_FIRMWARE_FAILED, &data->flags);
1859
1860 if (test_and_clear_bit(BTUSB_DOWNLOADING, &data->flags) &&
1861 test_bit(BTUSB_FIRMWARE_LOADED, &data->flags)) {
1862 smp_mb__after_atomic();
1863 wake_up_bit(&data->flags, BTUSB_DOWNLOADING);
1864 }
1865}
1866
cda0dd78
MH		 1867static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb)
1868{
1869 struct btusb_data *data = hci_get_drvdata(hdev);
1870
1871 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
1872 struct hci_event_hdr *hdr = (void *)skb->data;
1873
ccd6da2a
MH		 1874 if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff &&
1875 hdr->plen > 0) {
1876 const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1;
1877 unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1;
1878
1879 switch (skb->data[2]) {
1880 case 0x02:
1881 /* When switching to the operational firmware
1882 * the device sends a vendor specific event
1883 * indicating that the bootup completed.
1884 */
1885 btusb_intel_bootup(data, ptr, len);
1886 break;
1887 case 0x06:
1888 /* When the firmware loading completes the
1889 * device sends out a vendor specific event
1890 * indicating the result of the firmware
1891 * loading.
1892 */
1893 btusb_intel_secure_send_result(data, ptr, len);
1894 break;
fad70972 1895 }
cda0dd78
MH		 1896 }
1897 }
1898
1899 return hci_recv_frame(hdev, skb);
1900}
1901
1902static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
1903{
1904 struct btusb_data *data = hci_get_drvdata(hdev);
1905 struct urb *urb;
1906
1907 BT_DBG("%s", hdev->name);
1908
618e8bc2 1909 switch (hci_skb_pkt_type(skb)) {
cda0dd78
MH		 1910 case HCI_COMMAND_PKT:
1911 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
1912 struct hci_command_hdr *cmd = (void *)skb->data;
1913 __u16 opcode = le16_to_cpu(cmd->opcode);
1914
1915 /* When in bootloader mode and the command 0xfc09
1916 * is received, it needs to be send down the
1917 * bulk endpoint. So allocate a bulk URB instead.
1918 */
1919 if (opcode == 0xfc09)
1920 urb = alloc_bulk_urb(hdev, skb);
1921 else
1922 urb = alloc_ctrl_urb(hdev, skb);
1923
1924 /* When the 0xfc01 command is issued to boot into
1925 * the operational firmware, it will actually not
1926 * send a command complete event. To keep the flow
1927 * control working inject that event here.
1928 */
1929 if (opcode == 0xfc01)
1930 inject_cmd_complete(hdev, opcode);
1931 } else {
1932 urb = alloc_ctrl_urb(hdev, skb);
1933 }
1934 if (IS_ERR(urb))
1935 return PTR_ERR(urb);
1936
1937 hdev->stat.cmd_tx++;
1938 return submit_or_queue_tx_urb(hdev, urb);
1939
1940 case HCI_ACLDATA_PKT:
1941 urb = alloc_bulk_urb(hdev, skb);
1942 if (IS_ERR(urb))
1943 return PTR_ERR(urb);
1944
1945 hdev->stat.acl_tx++;
1946 return submit_or_queue_tx_urb(hdev, urb);
1947
1948 case HCI_SCODATA_PKT:
1949 if (hci_conn_num(hdev, SCO_LINK) < 1)
1950 return -ENODEV;
1951
1952 urb = alloc_isoc_urb(hdev, skb);
1953 if (IS_ERR(urb))
1954 return PTR_ERR(urb);
1955
1956 hdev->stat.sco_tx++;
1957 return submit_tx_urb(hdev, urb);
1958 }
1959
1960 return -EILSEQ;
1961}
1962
cda0dd78
MH		 1963static int btusb_setup_intel_new(struct hci_dev *hdev)
1964{
1965 static const u8 reset_param[] = { 0x00, 0x01, 0x00, 0x01,
1966 0x00, 0x08, 0x04, 0x00 };
1967 struct btusb_data *data = hci_get_drvdata(hdev);
1968 struct sk_buff *skb;
6c483de1 1969 struct intel_version ver;
cda0dd78
MH		 1970 struct intel_boot_params *params;
1971 const struct firmware *fw;
1972 const u8 *fw_ptr;
e66890a9 1973 u32 frag_len;
cda0dd78
MH		 1974 char fwname[64];
1975 ktime_t calltime, delta, rettime;
1976 unsigned long long duration;
1977 int err;
1978
1979 BT_DBG("%s", hdev->name);
1980
1981 calltime = ktime_get();
1982
1983 /* Read the Intel version information to determine if the device
1984 * is in bootloader mode or if it already has operational firmware
1985 * loaded.
1986 */
6c483de1
LP		 1987 err = btintel_read_version(hdev, &ver);
1988 if (err)
1989 return err;
cda0dd78
MH		 1990
1991 /* The hardware platform number has a fixed value of 0x37 and
1992 * for now only accept this single value.
1993 */
6c483de1 1994 if (ver.hw_platform != 0x37) {
cda0dd78 1995 BT_ERR("%s: Unsupported Intel hardware platform (%u)",
6c483de1 1996 hdev->name, ver.hw_platform);
cda0dd78
MH		 1997 return -EINVAL;
1998 }
1999
2000 /* At the moment only the hardware variant iBT 3.0 (LnP/SfP) is
2001 * supported by this firmware loading method. This check has been
2002 * put in place to ensure correct forward compatibility options
2003 * when newer hardware variants come along.
2004 */
6c483de1 2005 if (ver.hw_variant != 0x0b) {
cda0dd78 2006 BT_ERR("%s: Unsupported Intel hardware variant (%u)",
6c483de1 2007 hdev->name, ver.hw_variant);
cda0dd78
MH		 2008 return -EINVAL;
2009 }
2010
6c483de1 2011 btintel_version_info(hdev, &ver);
cda0dd78
MH		 2012
2013 /* The firmware variant determines if the device is in bootloader
2014 * mode or is running operational firmware. The value 0x06 identifies
2015 * the bootloader and the value 0x23 identifies the operational
2016 * firmware.
2017 *
2018 * When the operational firmware is already present, then only
2019 * the check for valid Bluetooth device address is needed. This
2020 * determines if the device will be added as configured or
2021 * unconfigured controller.
2022 *
2023 * It is not possible to use the Secure Boot Parameters in this
2024 * case since that command is only available in bootloader mode.
2025 */
6c483de1 2026 if (ver.fw_variant == 0x23) {
cda0dd78 2027 clear_bit(BTUSB_BOOTLOADER, &data->flags);
4185a0f5 2028 btintel_check_bdaddr(hdev);
cda0dd78
MH		 2029 return 0;
2030 }
2031
2032 /* If the device is not in bootloader mode, then the only possible
2033 * choice is to return an error and abort the device initialization.
2034 */
6c483de1 2035 if (ver.fw_variant != 0x06) {
cda0dd78 2036 BT_ERR("%s: Unsupported Intel firmware variant (%u)",
6c483de1 2037 hdev->name, ver.fw_variant);
cda0dd78
MH		 2038 return -ENODEV;
2039 }
2040
cda0dd78
MH		 2041 /* Read the secure boot parameters to identify the operating
2042 * details of the bootloader.
2043 */
2044 skb = __hci_cmd_sync(hdev, 0xfc0d, 0, NULL, HCI_INIT_TIMEOUT);
2045 if (IS_ERR(skb)) {
2046 BT_ERR("%s: Reading Intel boot parameters failed (%ld)",
2047 hdev->name, PTR_ERR(skb));
2048 return PTR_ERR(skb);
2049 }
2050
2051 if (skb->len != sizeof(*params)) {
2052 BT_ERR("%s: Intel boot parameters size mismatch", hdev->name);
2053 kfree_skb(skb);
2054 return -EILSEQ;
2055 }
2056
2057 params = (struct intel_boot_params *)skb->data;
cda0dd78
MH		 2058
2059 BT_INFO("%s: Device revision is %u", hdev->name,
2060 le16_to_cpu(params->dev_revid));
2061
2062 BT_INFO("%s: Secure boot is %s", hdev->name,
2063 params->secure_boot ? "enabled" : "disabled");
2064
2220994e
MH		 2065 BT_INFO("%s: OTP lock is %s", hdev->name,
2066 params->otp_lock ? "enabled" : "disabled");
2067
2068 BT_INFO("%s: API lock is %s", hdev->name,
2069 params->api_lock ? "enabled" : "disabled");
2070
2071 BT_INFO("%s: Debug lock is %s", hdev->name,
2072 params->debug_lock ? "enabled" : "disabled");
2073
cda0dd78
MH		 2074 BT_INFO("%s: Minimum firmware build %u week %u %u", hdev->name,
2075 params->min_fw_build_nn, params->min_fw_build_cw,
2076 2000 + params->min_fw_build_yy);
2077
2078 /* It is required that every single firmware fragment is acknowledged
2079 * with a command complete event. If the boot parameters indicate
2080 * that this bootloader does not send them, then abort the setup.
2081 */
2082 if (params->limited_cce != 0x00) {
2083 BT_ERR("%s: Unsupported Intel firmware loading method (%u)",
2084 hdev->name, params->limited_cce);
2085 kfree_skb(skb);
2086 return -EINVAL;
2087 }
2088
2089 /* If the OTP has no valid Bluetooth device address, then there will
2090 * also be no valid address for the operational firmware.
2091 */
2092 if (!bacmp(&params->otp_bdaddr, BDADDR_ANY)) {
2093 BT_INFO("%s: No device address configured", hdev->name);
2094 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
2095 }
2096
2097 /* With this Intel bootloader only the hardware variant and device
2098 * revision information are used to select the right firmware.
2099 *
2100 * Currently this bootloader support is limited to hardware variant
2101 * iBT 3.0 (LnP/SfP) which is identified by the value 11 (0x0b).
2102 */
2103 snprintf(fwname, sizeof(fwname), "intel/ibt-11-%u.sfi",
2104 le16_to_cpu(params->dev_revid));
2105
2106 err = request_firmware(&fw, fwname, &hdev->dev);
2107 if (err < 0) {
2108 BT_ERR("%s: Failed to load Intel firmware file (%d)",
2109 hdev->name, err);
2110 kfree_skb(skb);
2111 return err;
2112 }
2113
2114 BT_INFO("%s: Found device firmware: %s", hdev->name, fwname);
2115
52cc9168
THJA		 2116 /* Save the DDC file name for later use to apply once the firmware
2117 * downloading is done.
2118 */
2119 snprintf(fwname, sizeof(fwname), "intel/ibt-11-%u.ddc",
2120 le16_to_cpu(params->dev_revid));
2121
cda0dd78
MH		 2122 kfree_skb(skb);
2123
2124 if (fw->size < 644) {
2125 BT_ERR("%s: Invalid size of firmware file (%zu)",
2126 hdev->name, fw->size);
2127 err = -EBADF;
2128 goto done;
2129 }
2130
2131 set_bit(BTUSB_DOWNLOADING, &data->flags);
2132
2133 /* Start the firmware download transaction with the Init fragment
2134 * represented by the 128 bytes of CSS header.
2135 */
09df123d 2136 err = btintel_secure_send(hdev, 0x00, 128, fw->data);
cda0dd78
MH		 2137 if (err < 0) {
2138 BT_ERR("%s: Failed to send firmware header (%d)",
2139 hdev->name, err);
2140 goto done;
2141 }
2142
2143 /* Send the 256 bytes of public key information from the firmware
2144 * as the PKey fragment.
2145 */
09df123d 2146 err = btintel_secure_send(hdev, 0x03, 256, fw->data + 128);
cda0dd78
MH		 2147 if (err < 0) {
2148 BT_ERR("%s: Failed to send firmware public key (%d)",
2149 hdev->name, err);
2150 goto done;
2151 }
2152
2153 /* Send the 256 bytes of signature information from the firmware
2154 * as the Sign fragment.
2155 */
09df123d 2156 err = btintel_secure_send(hdev, 0x02, 256, fw->data + 388);
cda0dd78
MH		 2157 if (err < 0) {
2158 BT_ERR("%s: Failed to send firmware signature (%d)",
2159 hdev->name, err);
2160 goto done;
2161 }
2162
2163 fw_ptr = fw->data + 644;
e66890a9 2164 frag_len = 0;
cda0dd78
MH		 2165
2166 while (fw_ptr - fw->data < fw->size) {
e66890a9 2167 struct hci_command_hdr *cmd = (void *)(fw_ptr + frag_len);
cda0dd78 2168
e66890a9 2169 frag_len += sizeof(*cmd) + cmd->plen;
cda0dd78 2170
5075edae 2171 /* The parameter length of the secure send command requires
e66890a9
MH		 2172 * a 4 byte alignment. It happens so that the firmware file
2173 * contains proper Intel_NOP commands to align the fragments
2174 * as needed.
2175 *
2176 * Send set of commands with 4 byte alignment from the
2177 * firmware data buffer as a single Data fragement.
cda0dd78 2178 */
e66890a9 2179 if (!(frag_len % 4)) {
09df123d 2180 err = btintel_secure_send(hdev, 0x01, frag_len, fw_ptr);
e66890a9
MH		 2181 if (err < 0) {
2182 BT_ERR("%s: Failed to send firmware data (%d)",
2183 hdev->name, err);
2184 goto done;
2185 }
cda0dd78 2186
e66890a9
MH		 2187 fw_ptr += frag_len;
2188 frag_len = 0;
2189 }
cda0dd78
MH		 2190 }
2191
ce6bb929
MH		 2192 set_bit(BTUSB_FIRMWARE_LOADED, &data->flags);
2193
a087a98e
JH		 2194 BT_INFO("%s: Waiting for firmware download to complete", hdev->name);
2195
cda0dd78
MH		 2196 /* Before switching the device into operational mode and with that
2197 * booting the loaded firmware, wait for the bootloader notification
2198 * that all fragments have been successfully received.
2199 *
a087a98e
JH		 2200 * When the event processing receives the notification, then the
2201 * BTUSB_DOWNLOADING flag will be cleared.
2202 *
2203 * The firmware loading should not take longer than 5 seconds
2204 * and thus just timeout if that happens and fail the setup
2205 * of this device.
cda0dd78 2206 */
129a7693
JH		 2207 err = wait_on_bit_timeout(&data->flags, BTUSB_DOWNLOADING,
2208 TASK_INTERRUPTIBLE,
2209 msecs_to_jiffies(5000));
a087a98e
JH		 2210 if (err == 1) {
2211 BT_ERR("%s: Firmware loading interrupted", hdev->name);
2212 err = -EINTR;
2213 goto done;
2214 }
cda0dd78 2215
a087a98e
JH		 2216 if (err) {
2217 BT_ERR("%s: Firmware loading timeout", hdev->name);
2218 err = -ETIMEDOUT;
2219 goto done;
cda0dd78
MH		 2220 }
2221
2222 if (test_bit(BTUSB_FIRMWARE_FAILED, &data->flags)) {
2223 BT_ERR("%s: Firmware loading failed", hdev->name);
2224 err = -ENOEXEC;
2225 goto done;
2226 }
2227
2228 rettime = ktime_get();
2229 delta = ktime_sub(rettime, calltime);
2230 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2231
2232 BT_INFO("%s: Firmware loaded in %llu usecs", hdev->name, duration);
2233
2234done:
2235 release_firmware(fw);
2236
2237 if (err < 0)
2238 return err;
2239
2240 calltime = ktime_get();
2241
2242 set_bit(BTUSB_BOOTING, &data->flags);
2243
2244 skb = __hci_cmd_sync(hdev, 0xfc01, sizeof(reset_param), reset_param,
2245 HCI_INIT_TIMEOUT);
2246 if (IS_ERR(skb))
2247 return PTR_ERR(skb);
2248
2249 kfree_skb(skb);
2250
2251 /* The bootloader will not indicate when the device is ready. This
2252 * is done by the operational firmware sending bootup notification.
fad70972
JH		 2253 *
2254 * Booting into operational firmware should not take longer than
2255 * 1 second. However if that happens, then just fail the setup
2256 * since something went wrong.
cda0dd78 2257 */
fad70972 2258 BT_INFO("%s: Waiting for device to boot", hdev->name);
cda0dd78 2259
129a7693
JH		 2260 err = wait_on_bit_timeout(&data->flags, BTUSB_BOOTING,
2261 TASK_INTERRUPTIBLE,
2262 msecs_to_jiffies(1000));
cda0dd78 2263
fad70972
JH		 2264 if (err == 1) {
2265 BT_ERR("%s: Device boot interrupted", hdev->name);
2266 return -EINTR;
2267 }
cda0dd78 2268
fad70972
JH		 2269 if (err) {
2270 BT_ERR("%s: Device boot timeout", hdev->name);
2271 return -ETIMEDOUT;
cda0dd78
MH		 2272 }
2273
2274 rettime = ktime_get();
2275 delta = ktime_sub(rettime, calltime);
2276 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2277
2278 BT_INFO("%s: Device booted in %llu usecs", hdev->name, duration);
2279
2280 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2281
52cc9168
THJA		 2282 /* Once the device is running in operational mode, it needs to apply
2283 * the device configuration (DDC) parameters.
2284 *
2285 * The device can work without DDC parameters, so even if it fails
2286 * to load the file, no need to fail the setup.
2287 */
e924d3d6 2288 btintel_load_ddc_config(hdev, fwname);
52cc9168 2289
213445b2
MH		 2290 /* Set the event mask for Intel specific vendor events. This enables
2291 * a few extra events that are useful during general operation. It
2292 * does not enable any debugging related events.
2293 *
2294 * The device will function correctly without these events enabled
2295 * and thus no need to fail the setup.
2296 */
2297 btintel_set_event_mask(hdev, false);
2298
cda0dd78
MH		 2299 return 0;
2300}
2301
bfbd45e9
THJA		 2302static int btusb_shutdown_intel(struct hci_dev *hdev)
2303{
2304 struct sk_buff *skb;
2305 long ret;
2306
2307 /* Some platforms have an issue with BT LED when the interface is
2308 * down or BT radio is turned off, which takes 5 seconds to BT LED
2309 * goes off. This command turns off the BT LED immediately.
2310 */
2311 skb = __hci_cmd_sync(hdev, 0xfc3f, 0, NULL, HCI_INIT_TIMEOUT);
2312 if (IS_ERR(skb)) {
2313 ret = PTR_ERR(skb);
2314 BT_ERR("%s: turning off Intel device LED failed (%ld)",
2315 hdev->name, ret);
2316 return ret;
2317 }
2318 kfree_skb(skb);
2319
2320 return 0;
2321}
2322
ae8df494
AK		 2323static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
2324 const bdaddr_t *bdaddr)
2325{
2326 struct sk_buff *skb;
2327 u8 buf[8];
2328 long ret;
2329
2330 buf[0] = 0xfe;
2331 buf[1] = sizeof(bdaddr_t);
2332 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
2333
2334 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2335 if (IS_ERR(skb)) {
2336 ret = PTR_ERR(skb);
2337 BT_ERR("%s: changing Marvell device address failed (%ld)",
2338 hdev->name, ret);
2339 return ret;
2340 }
2341 kfree_skb(skb);
2342
2343 return 0;
2344}
2345
5859223e
TK		 2346static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
2347 const bdaddr_t *bdaddr)
2348{
2349 struct sk_buff *skb;
2350 u8 buf[10];
2351 long ret;
2352
2353 buf[0] = 0x01;
2354 buf[1] = 0x01;
2355 buf[2] = 0x00;
2356 buf[3] = sizeof(bdaddr_t);
2357 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
2358
2359 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2360 if (IS_ERR(skb)) {
2361 ret = PTR_ERR(skb);
2362 BT_ERR("%s: Change address command failed (%ld)",
2363 hdev->name, ret);
2364 return ret;
2365 }
2366 kfree_skb(skb);
2367
2368 return 0;
2369}
2370
3267c884
KBYT		 2371#define QCA_DFU_PACKET_LEN 4096
2372
2373#define QCA_GET_TARGET_VERSION 0x09
2374#define QCA_CHECK_STATUS 0x05
2375#define QCA_DFU_DOWNLOAD 0x01
2376
2377#define QCA_SYSCFG_UPDATED 0x40
2378#define QCA_PATCH_UPDATED 0x80
2379#define QCA_DFU_TIMEOUT 3000
2380
2381struct qca_version {
2382 __le32 rom_version;
2383 __le32 patch_version;
2384 __le32 ram_version;
2385 __le32 ref_clock;
2386 __u8 reserved[4];
2387} __packed;
2388
2389struct qca_rampatch_version {
2390 __le16 rom_version;
2391 __le16 patch_version;
2392} __packed;
2393
2394struct qca_device_info {
bf906b3d
KBYT		 2395 u32 rom_version;
2396 u8 rampatch_hdr; /* length of header in rampatch */
2397 u8 nvm_hdr; /* length of header in NVM */
2398 u8 ver_offset; /* offset of version structure in rampatch */
3267c884
KBYT		 2399};
2400
2401static const struct qca_device_info qca_devices_table[] = {
2402 { 0x00000100, 20, 4, 10 }, /* Rome 1.0 */
2403 { 0x00000101, 20, 4, 10 }, /* Rome 1.1 */
7f6e6363 2404 { 0x00000200, 28, 4, 18 }, /* Rome 2.0 */
3267c884
KBYT		 2405 { 0x00000201, 28, 4, 18 }, /* Rome 2.1 */
2406 { 0x00000300, 28, 4, 18 }, /* Rome 3.0 */
2407 { 0x00000302, 28, 4, 18 }, /* Rome 3.2 */
2408};
2409
2410static int btusb_qca_send_vendor_req(struct hci_dev *hdev, u8 request,
2411 void *data, u16 size)
2412{
2413 struct btusb_data *btdata = hci_get_drvdata(hdev);
2414 struct usb_device *udev = btdata->udev;
2415 int pipe, err;
2416 u8 *buf;
2417
2418 buf = kmalloc(size, GFP_KERNEL);
2419 if (!buf)
2420 return -ENOMEM;
2421
2422 /* Found some of USB hosts have IOT issues with ours so that we should
2423 * not wait until HCI layer is ready.
2424 */
2425 pipe = usb_rcvctrlpipe(udev, 0);
2426 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
2427 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
2428 if (err < 0) {
2429 BT_ERR("%s: Failed to access otp area (%d)", hdev->name, err);
2430 goto done;
2431 }
2432
2433 memcpy(data, buf, size);
2434
2435done:
2436 kfree(buf);
2437
2438 return err;
2439}
2440
2441static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
2442 const struct firmware *firmware,
2443 size_t hdr_size)
2444{
2445 struct btusb_data *btdata = hci_get_drvdata(hdev);
2446 struct usb_device *udev = btdata->udev;
2447 size_t count, size, sent = 0;
2448 int pipe, len, err;
2449 u8 *buf;
2450
2451 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
2452 if (!buf)
2453 return -ENOMEM;
2454
2455 count = firmware->size;
2456
2457 size = min_t(size_t, count, hdr_size);
2458 memcpy(buf, firmware->data, size);
2459
2460 /* USB patches should go down to controller through USB path
2461 * because binary format fits to go down through USB channel.
2462 * USB control path is for patching headers and USB bulk is for
2463 * patch body.
2464 */
2465 pipe = usb_sndctrlpipe(udev, 0);
2466 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
2467 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
2468 if (err < 0) {
2469 BT_ERR("%s: Failed to send headers (%d)", hdev->name, err);
2470 goto done;
2471 }
2472
2473 sent += size;
2474 count -= size;
2475
2476 while (count) {
2477 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
2478
2479 memcpy(buf, firmware->data + sent, size);
2480
2481 pipe = usb_sndbulkpipe(udev, 0x02);
2482 err = usb_bulk_msg(udev, pipe, buf, size, &len,
2483 QCA_DFU_TIMEOUT);
2484 if (err < 0) {
2485 BT_ERR("%s: Failed to send body at %zd of %zd (%d)",
2486 hdev->name, sent, firmware->size, err);
2487 break;
2488 }
2489
2490 if (size != len) {
2491 BT_ERR("%s: Failed to get bulk buffer", hdev->name);
2492 err = -EILSEQ;
2493 break;
2494 }
2495
2496 sent += size;
2497 count -= size;
2498 }
2499
2500done:
2501 kfree(buf);
2502 return err;
2503}
2504
2505static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
2506 struct qca_version *ver,
2507 const struct qca_device_info *info)
2508{
2509 struct qca_rampatch_version *rver;
2510 const struct firmware *fw;
bf906b3d
KBYT		 2511 u32 ver_rom, ver_patch;
2512 u16 rver_rom, rver_patch;
3267c884
KBYT		 2513 char fwname[64];
2514 int err;
2515
bf906b3d
KBYT		 2516 ver_rom = le32_to_cpu(ver->rom_version);
2517 ver_patch = le32_to_cpu(ver->patch_version);
2518
2519 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom);
3267c884
KBYT		 2520
2521 err = request_firmware(&fw, fwname, &hdev->dev);
2522 if (err) {
2523 BT_ERR("%s: failed to request rampatch file: %s (%d)",
2524 hdev->name, fwname, err);
2525 return err;
2526 }
2527
2528 BT_INFO("%s: using rampatch file: %s", hdev->name, fwname);
bf906b3d 2529
3267c884 2530 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
bf906b3d
KBYT		 2531 rver_rom = le16_to_cpu(rver->rom_version);
2532 rver_patch = le16_to_cpu(rver->patch_version);
2533
3267c884 2534 BT_INFO("%s: QCA: patch rome 0x%x build 0x%x, firmware rome 0x%x "
bf906b3d
KBYT		 2535 "build 0x%x", hdev->name, rver_rom, rver_patch, ver_rom,
2536 ver_patch);
3267c884 2537
bf906b3d 2538 if (rver_rom != ver_rom || rver_patch <= ver_patch) {
3267c884
KBYT		 2539 BT_ERR("%s: rampatch file version did not match with firmware",
2540 hdev->name);
2541 err = -EINVAL;
2542 goto done;
2543 }
2544
2545 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
2546
2547done:
2548 release_firmware(fw);
2549
2550 return err;
2551}
2552
2553static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
2554 struct qca_version *ver,
2555 const struct qca_device_info *info)
2556{
2557 const struct firmware *fw;
2558 char fwname[64];
2559 int err;
2560
2561 snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin",
2562 le32_to_cpu(ver->rom_version));
2563
2564 err = request_firmware(&fw, fwname, &hdev->dev);
2565 if (err) {
2566 BT_ERR("%s: failed to request NVM file: %s (%d)",
2567 hdev->name, fwname, err);
2568 return err;
2569 }
2570
2571 BT_INFO("%s: using NVM file: %s", hdev->name, fwname);
2572
2573 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
2574
2575 release_firmware(fw);
2576
2577 return err;
2578}
2579
2580static int btusb_setup_qca(struct hci_dev *hdev)
2581{
2582 const struct qca_device_info *info = NULL;
2583 struct qca_version ver;
bf906b3d 2584 u32 ver_rom;
3267c884
KBYT		 2585 u8 status;
2586 int i, err;
2587
2588 err = btusb_qca_send_vendor_req(hdev, QCA_GET_TARGET_VERSION, &ver,
eb50042f 2589 sizeof(ver));
3267c884
KBYT		 2590 if (err < 0)
2591 return err;
2592
bf906b3d 2593 ver_rom = le32_to_cpu(ver.rom_version);
3267c884 2594 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
bf906b3d 2595 if (ver_rom == qca_devices_table[i].rom_version)
3267c884
KBYT		 2596 info = &qca_devices_table[i];
2597 }
2598 if (!info) {
2599 BT_ERR("%s: don't support firmware rome 0x%x", hdev->name,
bf906b3d 2600 ver_rom);
3267c884
KBYT		 2601 return -ENODEV;
2602 }
2603
2604 err = btusb_qca_send_vendor_req(hdev, QCA_CHECK_STATUS, &status,
2605 sizeof(status));
2606 if (err < 0)
2607 return err;
2608
2609 if (!(status & QCA_PATCH_UPDATED)) {
2610 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
2611 if (err < 0)
2612 return err;
2613 }
2614
2615 if (!(status & QCA_SYSCFG_UPDATED)) {
2616 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
2617 if (err < 0)
2618 return err;
2619 }
2620
2621 return 0;
2622}
2623
9d08f504
MH		 2624#ifdef CONFIG_BT_HCIBTUSB_BCM
2625static inline int __set_diag_interface(struct hci_dev *hdev)
2626{
2627 struct btusb_data *data = hci_get_drvdata(hdev);
2628 struct usb_interface *intf = data->diag;
2629 int i;
2630
2631 if (!data->diag)
2632 return -ENODEV;
2633
2634 data->diag_tx_ep = NULL;
2635 data->diag_rx_ep = NULL;
2636
2637 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2638 struct usb_endpoint_descriptor *ep_desc;
2639
2640 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2641
2642 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
2643 data->diag_tx_ep = ep_desc;
2644 continue;
2645 }
2646
2647 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
2648 data->diag_rx_ep = ep_desc;
2649 continue;
2650 }
2651 }
2652
2653 if (!data->diag_tx_ep || !data->diag_rx_ep) {
2654 BT_ERR("%s invalid diagnostic descriptors", hdev->name);
2655 return -ENODEV;
2656 }
2657
2658 return 0;
2659}
2660
2661static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable)
2662{
2663 struct btusb_data *data = hci_get_drvdata(hdev);
2664 struct sk_buff *skb;
2665 struct urb *urb;
2666 unsigned int pipe;
2667
2668 if (!data->diag_tx_ep)
2669 return ERR_PTR(-ENODEV);
2670
2671 urb = usb_alloc_urb(0, GFP_KERNEL);
2672 if (!urb)
2673 return ERR_PTR(-ENOMEM);
2674
2675 skb = bt_skb_alloc(2, GFP_KERNEL);
2676 if (!skb) {
2677 usb_free_urb(urb);
2678 return ERR_PTR(-ENOMEM);
2679 }
2680
2681 *skb_put(skb, 1) = 0xf0;
2682 *skb_put(skb, 1) = enable;
2683
2684 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress);
2685
2686 usb_fill_bulk_urb(urb, data->udev, pipe,
2687 skb->data, skb->len, btusb_tx_complete, skb);
2688
2689 skb->dev = (void *)hdev;
2690
2691 return urb;
2692}
2693
2694static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable)
2695{
2696 struct btusb_data *data = hci_get_drvdata(hdev);
2697 struct urb *urb;
2698
2699 if (!data->diag)
2700 return -ENODEV;
2701
2702 if (!test_bit(HCI_RUNNING, &hdev->flags))
2703 return -ENETDOWN;
2704
2705 urb = alloc_diag_urb(hdev, enable);
2706 if (IS_ERR(urb))
2707 return PTR_ERR(urb);
2708
2709 return submit_or_queue_tx_urb(hdev, urb);
2710}
2711#endif
2712
5e23b923 2713static int btusb_probe(struct usb_interface *intf,
89e7533d 2714 const struct usb_device_id *id)
5e23b923
MH		 2715{
2716 struct usb_endpoint_descriptor *ep_desc;
2717 struct btusb_data *data;
2718 struct hci_dev *hdev;
22f8e9db 2719 unsigned ifnum_base;
5e23b923
MH		 2720 int i, err;
2721
2722 BT_DBG("intf %p id %p", intf, id);
2723
cfeb4145 2724 /* interface numbers are hardcoded in the spec */
22f8e9db
MH		 2725 if (intf->cur_altsetting->desc.bInterfaceNumber != 0) {
2726 if (!(id->driver_info & BTUSB_IFNUM_2))
2727 return -ENODEV;
2728 if (intf->cur_altsetting->desc.bInterfaceNumber != 2)
2729 return -ENODEV;
2730 }
2731
2732 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber;
5e23b923
MH		 2733
2734 if (!id->driver_info) {
2735 const struct usb_device_id *match;
89e7533d 2736
5e23b923
MH		 2737 match = usb_match_id(intf, blacklist_table);
2738 if (match)
2739 id = match;
2740 }
2741
cfeb4145
MH		 2742 if (id->driver_info == BTUSB_IGNORE)
2743 return -ENODEV;
2744
2d25f8b4
SL		 2745 if (id->driver_info & BTUSB_ATH3012) {
2746 struct usb_device *udev = interface_to_usbdev(intf);
2747
2748 /* Old firmware would otherwise let ath3k driver load
2749 * patch and sysconfig files */
2750 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
2751 return -ENODEV;
2752 }
2753
98921dbd 2754 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
5e23b923
MH		 2755 if (!data)
2756 return -ENOMEM;
2757
2758 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2759 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2760
2761 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
2762 data->intr_ep = ep_desc;
2763 continue;
2764 }
2765
2766 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
2767 data->bulk_tx_ep = ep_desc;
2768 continue;
2769 }
2770
2771 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
2772 data->bulk_rx_ep = ep_desc;
2773 continue;
2774 }
2775 }
2776
98921dbd 2777 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
5e23b923 2778 return -ENODEV;
5e23b923 2779
893ba544
MH		 2780 if (id->driver_info & BTUSB_AMP) {
2781 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
2782 data->cmdreq = 0x2b;
2783 } else {
2784 data->cmdreq_type = USB_TYPE_CLASS;
2785 data->cmdreq = 0x00;
2786 }
7a9d4020 2787
5e23b923 2788 data->udev = interface_to_usbdev(intf);
5fbcd260 2789 data->intf = intf;
5e23b923 2790
5e23b923 2791 INIT_WORK(&data->work, btusb_work);
7bee549e 2792 INIT_WORK(&data->waker, btusb_waker);
803b5836
MH		 2793 init_usb_anchor(&data->deferred);
2794 init_usb_anchor(&data->tx_anchor);
7bee549e 2795 spin_lock_init(&data->txlock);
5e23b923 2796
5e23b923
MH		 2797 init_usb_anchor(&data->intr_anchor);
2798 init_usb_anchor(&data->bulk_anchor);
9bfa35fe 2799 init_usb_anchor(&data->isoc_anchor);
9d08f504 2800 init_usb_anchor(&data->diag_anchor);
803b5836 2801 spin_lock_init(&data->rxlock);
5e23b923 2802
cda0dd78
MH		 2803 if (id->driver_info & BTUSB_INTEL_NEW) {
2804 data->recv_event = btusb_recv_event_intel;
2805 data->recv_bulk = btusb_recv_bulk_intel;
2806 set_bit(BTUSB_BOOTLOADER, &data->flags);
2807 } else {
2808 data->recv_event = hci_recv_frame;
2809 data->recv_bulk = btusb_recv_bulk;
2810 }
2cbd3f5c 2811
5e23b923 2812 hdev = hci_alloc_dev();
98921dbd 2813 if (!hdev)
5e23b923 2814 return -ENOMEM;
5e23b923 2815
c13854ce 2816 hdev->bus = HCI_USB;
155961e8 2817 hci_set_drvdata(hdev, data);
5e23b923 2818
893ba544
MH		 2819 if (id->driver_info & BTUSB_AMP)
2820 hdev->dev_type = HCI_AMP;
2821 else
2822 hdev->dev_type = HCI_BREDR;
2823
5e23b923
MH		 2824 data->hdev = hdev;
2825
2826 SET_HCIDEV_DEV(hdev, &intf->dev);
2827
9f8f962c
MH		 2828 hdev->open = btusb_open;
2829 hdev->close = btusb_close;
2830 hdev->flush = btusb_flush;
2831 hdev->send = btusb_send_frame;
2832 hdev->notify = btusb_notify;
2833
6c9d435d
MH		 2834 if (id->driver_info & BTUSB_BCM2045)
2835 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
2836
9f8f962c
MH		 2837 if (id->driver_info & BTUSB_BCM92035)
2838 hdev->setup = btusb_setup_bcm92035;
5e23b923 2839
c2bfb100 2840#ifdef CONFIG_BT_HCIBTUSB_BCM
abbaf50e 2841 if (id->driver_info & BTUSB_BCM_PATCHRAM) {
49a5f782 2842 hdev->manufacturer = 15;
c2bfb100 2843 hdev->setup = btbcm_setup_patchram;
9d08f504 2844 hdev->set_diag = btusb_bcm_set_diag;
1df1f591 2845 hdev->set_bdaddr = btbcm_set_bdaddr;
9d08f504
MH		 2846
2847 /* Broadcom LM_DIAG Interface numbers are hardcoded */
22f8e9db 2848 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
abbaf50e 2849 }
10d4c673 2850
9d08f504 2851 if (id->driver_info & BTUSB_BCM_APPLE) {
49a5f782 2852 hdev->manufacturer = 15;
c2bfb100 2853 hdev->setup = btbcm_setup_apple;
9d08f504
MH		 2854 hdev->set_diag = btusb_bcm_set_diag;
2855
2856 /* Broadcom LM_DIAG Interface numbers are hardcoded */
22f8e9db 2857 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
9d08f504 2858 }
c2bfb100 2859#endif
17b2772b 2860
cb8d6597 2861 if (id->driver_info & BTUSB_INTEL) {
49a5f782 2862 hdev->manufacturer = 2;
dffd30ee 2863 hdev->setup = btusb_setup_intel;
bfbd45e9 2864 hdev->shutdown = btusb_shutdown_intel;
3e24767b 2865 hdev->set_diag = btintel_set_diag_mfg;
4185a0f5 2866 hdev->set_bdaddr = btintel_set_bdaddr;
c33fb9b4 2867 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
c1154842 2868 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3e24767b 2869 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks);
cb8d6597 2870 }
dffd30ee 2871
cda0dd78 2872 if (id->driver_info & BTUSB_INTEL_NEW) {
49a5f782 2873 hdev->manufacturer = 2;
cda0dd78
MH		 2874 hdev->send = btusb_send_frame_intel;
2875 hdev->setup = btusb_setup_intel_new;
eeb6abe9 2876 hdev->hw_error = btintel_hw_error;
6d2e50d2 2877 hdev->set_diag = btintel_set_diag;
4185a0f5 2878 hdev->set_bdaddr = btintel_set_bdaddr;
b970c5ba 2879 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
d8270fbb 2880 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks);
cda0dd78
MH		 2881 }
2882
ae8df494
AK		 2883 if (id->driver_info & BTUSB_MARVELL)
2884 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
2885
661cf88a
MH		 2886 if (id->driver_info & BTUSB_SWAVE) {
2887 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
d57dbe77 2888 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
661cf88a 2889 }
d57dbe77 2890
e4c534bb
MH		 2891 if (id->driver_info & BTUSB_INTEL_BOOT) {
2892 hdev->manufacturer = 2;
40df783d 2893 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
e4c534bb 2894 }
40df783d 2895
79f0c87d 2896 if (id->driver_info & BTUSB_ATH3012) {
5859223e 2897 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
3d50d51a 2898 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
79f0c87d
JP		 2899 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
2900 }
5859223e 2901
3267c884
KBYT		 2902 if (id->driver_info & BTUSB_QCA_ROME) {
2903 data->setup_on_usb = btusb_setup_qca;
2904 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
2905 }
2906
db33c77d 2907#ifdef CONFIG_BT_HCIBTUSB_RTL
04b8c814 2908 if (id->driver_info & BTUSB_REALTEK) {
db33c77d 2909 hdev->setup = btrtl_setup_realtek;
04b8c814
DD		 2910
2911 /* Realtek devices lose their updated firmware over suspend,
2912 * but the USB hub doesn't notice any status change.
2913 * Explicitly request a device reset on resume.
2914 */
2915 set_bit(BTUSB_RESET_RESUME, &data->flags);
2916 }
db33c77d 2917#endif
a2698a9b 2918
893ba544
MH		 2919 if (id->driver_info & BTUSB_AMP) {
2920 /* AMP controllers do not support SCO packets */
2921 data->isoc = NULL;
2922 } else {
22f8e9db
MH		 2923 /* Interface orders are hardcoded in the specification */
2924 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1);
893ba544 2925 }
9bfa35fe 2926
7a9d4020 2927 if (!reset)
a6c511c6 2928 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
cfeb4145
MH		 2929
2930 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
2931 if (!disable_scofix)
2932 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
2933 }
2934
9bfa35fe
MH		 2935 if (id->driver_info & BTUSB_BROKEN_ISOC)
2936 data->isoc = NULL;
2937
7a9d4020
MH		 2938 if (id->driver_info & BTUSB_DIGIANSWER) {
2939 data->cmdreq_type = USB_TYPE_VENDOR;
a6c511c6 2940 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
7a9d4020
MH		 2941 }
2942
2943 if (id->driver_info & BTUSB_CSR) {
2944 struct usb_device *udev = data->udev;
81cac64b 2945 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
7a9d4020
MH		 2946
2947 /* Old firmware would otherwise execute USB reset */
81cac64b 2948 if (bcdDevice < 0x117)
a6c511c6 2949 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
81cac64b
MH		 2950
2951 /* Fake CSR devices with broken commands */
6cafcd95 2952 if (bcdDevice <= 0x100 || bcdDevice == 0x134)
81cac64b 2953 hdev->setup = btusb_setup_csr;
49c989a0
JP		 2954
2955 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
7a9d4020
MH		 2956 }
2957
cfeb4145 2958 if (id->driver_info & BTUSB_SNIFFER) {
9bfa35fe 2959 struct usb_device *udev = data->udev;
cfeb4145 2960
7a9d4020 2961 /* New sniffer firmware has crippled HCI interface */
cfeb4145
MH		 2962 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
2963 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
2964 }
2965
3a5ef20c
MH		 2966 if (id->driver_info & BTUSB_INTEL_BOOT) {
2967 /* A bug in the bootloader causes that interrupt interface is
2968 * only enabled after receiving SetInterface(0, AltSetting=0).
2969 */
2970 err = usb_set_interface(data->udev, 0, 0);
2971 if (err < 0) {
2972 BT_ERR("failed to set interface 0, alt 0 %d", err);
2973 hci_free_dev(hdev);
2974 return err;
2975 }
2976 }
2977
9bfa35fe
MH		 2978 if (data->isoc) {
2979 err = usb_driver_claim_interface(&btusb_driver,
89e7533d 2980 data->isoc, data);
9bfa35fe
MH		 2981 if (err < 0) {
2982 hci_free_dev(hdev);
9bfa35fe
MH		 2983 return err;
2984 }
2985 }
2986
9d08f504
MH		 2987#ifdef CONFIG_BT_HCIBTUSB_BCM
2988 if (data->diag) {
2989 if (!usb_driver_claim_interface(&btusb_driver,
2990 data->diag, data))
2991 __set_diag_interface(hdev);
2992 else
2993 data->diag = NULL;
2994 }
2995#endif
2996
5e23b923
MH		 2997 err = hci_register_dev(hdev);
2998 if (err < 0) {
2999 hci_free_dev(hdev);
5e23b923
MH		 3000 return err;
3001 }
3002
3003 usb_set_intfdata(intf, data);
3004
3005 return 0;
3006}
3007
3008static void btusb_disconnect(struct usb_interface *intf)
3009{
3010 struct btusb_data *data = usb_get_intfdata(intf);
3011 struct hci_dev *hdev;
3012
3013 BT_DBG("intf %p", intf);
3014
3015 if (!data)
3016 return;
3017
3018 hdev = data->hdev;
5fbcd260
MH		 3019 usb_set_intfdata(data->intf, NULL);
3020
3021 if (data->isoc)
3022 usb_set_intfdata(data->isoc, NULL);
5e23b923 3023
9d08f504
MH		 3024 if (data->diag)
3025 usb_set_intfdata(data->diag, NULL);
3026
5e23b923
MH		 3027 hci_unregister_dev(hdev);
3028
9d08f504
MH		 3029 if (intf == data->intf) {
3030 if (data->isoc)
3031 usb_driver_release_interface(&btusb_driver, data->isoc);
3032 if (data->diag)
3033 usb_driver_release_interface(&btusb_driver, data->diag);
3034 } else if (intf == data->isoc) {
3035 if (data->diag)
3036 usb_driver_release_interface(&btusb_driver, data->diag);
5fbcd260 3037 usb_driver_release_interface(&btusb_driver, data->intf);
9d08f504
MH		 3038 } else if (intf == data->diag) {
3039 usb_driver_release_interface(&btusb_driver, data->intf);
3040 if (data->isoc)
3041 usb_driver_release_interface(&btusb_driver, data->isoc);
3042 }
5fbcd260 3043
5e23b923
MH		 3044 hci_free_dev(hdev);
3045}
3046
7bee549e 3047#ifdef CONFIG_PM
6a88adf2
MH		 3048static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
3049{
3050 struct btusb_data *data = usb_get_intfdata(intf);
3051
3052 BT_DBG("intf %p", intf);
3053
3054 if (data->suspend_count++)
3055 return 0;
3056
7bee549e 3057 spin_lock_irq(&data->txlock);
5b1b0b81 3058 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
7bee549e
ON		 3059 set_bit(BTUSB_SUSPENDING, &data->flags);
3060 spin_unlock_irq(&data->txlock);
3061 } else {
3062 spin_unlock_irq(&data->txlock);
3063 data->suspend_count--;
3064 return -EBUSY;
3065 }
3066
6a88adf2
MH		 3067 cancel_work_sync(&data->work);
3068
7bee549e 3069 btusb_stop_traffic(data);
6a88adf2
MH		 3070 usb_kill_anchored_urbs(&data->tx_anchor);
3071
04b8c814
DD		 3072 /* Optionally request a device reset on resume, but only when
3073 * wakeups are disabled. If wakeups are enabled we assume the
3074 * device will stay powered up throughout suspend.
3075 */
3076 if (test_bit(BTUSB_RESET_RESUME, &data->flags) &&
3077 !device_may_wakeup(&data->udev->dev))
3078 data->udev->reset_resume = 1;
3079
6a88adf2
MH		 3080 return 0;
3081}
3082
7bee549e
ON		 3083static void play_deferred(struct btusb_data *data)
3084{
3085 struct urb *urb;
3086 int err;
3087
3088 while ((urb = usb_get_from_anchor(&data->deferred))) {
3089 err = usb_submit_urb(urb, GFP_ATOMIC);
3090 if (err < 0)
3091 break;
3092
3093 data->tx_in_flight++;
3094 }
3095 usb_scuttle_anchored_urbs(&data->deferred);
3096}
3097
6a88adf2
MH		 3098static int btusb_resume(struct usb_interface *intf)
3099{
3100 struct btusb_data *data = usb_get_intfdata(intf);
3101 struct hci_dev *hdev = data->hdev;
7bee549e 3102 int err = 0;
6a88adf2
MH		 3103
3104 BT_DBG("intf %p", intf);
3105
3106 if (--data->suspend_count)
3107 return 0;
3108
3109 if (!test_bit(HCI_RUNNING, &hdev->flags))
7bee549e 3110 goto done;
6a88adf2
MH		 3111
3112 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
3113 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
3114 if (err < 0) {
3115 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
7bee549e 3116 goto failed;
6a88adf2
MH		 3117 }
3118 }
3119
3120 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
43c2e57f
MH		 3121 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
3122 if (err < 0) {
6a88adf2 3123 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
7bee549e
ON		 3124 goto failed;
3125 }
3126
3127 btusb_submit_bulk_urb(hdev, GFP_NOIO);
6a88adf2
MH		 3128 }
3129
3130 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
3131 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
3132 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
3133 else
3134 btusb_submit_isoc_urb(hdev, GFP_NOIO);
3135 }
3136
7bee549e
ON		 3137 spin_lock_irq(&data->txlock);
3138 play_deferred(data);
3139 clear_bit(BTUSB_SUSPENDING, &data->flags);
3140 spin_unlock_irq(&data->txlock);
3141 schedule_work(&data->work);
3142
6a88adf2 3143 return 0;
7bee549e
ON		 3144
3145failed:
3146 usb_scuttle_anchored_urbs(&data->deferred);
3147done:
3148 spin_lock_irq(&data->txlock);
3149 clear_bit(BTUSB_SUSPENDING, &data->flags);
3150 spin_unlock_irq(&data->txlock);
3151
3152 return err;
6a88adf2 3153}
7bee549e 3154#endif
6a88adf2 3155
5e23b923
MH		 3156static struct usb_driver btusb_driver = {
3157 .name = "btusb",
3158 .probe = btusb_probe,
3159 .disconnect = btusb_disconnect,
7bee549e 3160#ifdef CONFIG_PM
6a88adf2
MH		 3161 .suspend = btusb_suspend,
3162 .resume = btusb_resume,
7bee549e 3163#endif
5e23b923 3164 .id_table = btusb_table,
7bee549e 3165 .supports_autosuspend = 1,
e1f12eb6 3166 .disable_hub_initiated_lpm = 1,
5e23b923
MH		 3167};
3168
93f1508c 3169module_usb_driver(btusb_driver);
5e23b923 3170
cfeb4145
MH		 3171module_param(disable_scofix, bool, 0644);
3172MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
3173
3174module_param(force_scofix, bool, 0644);
3175MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
3176
3177module_param(reset, bool, 0644);
3178MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
3179
5e23b923
MH		 3180MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
3181MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
3182MODULE_VERSION(VERSION);
3183MODULE_LICENSE("GPL");
Linux 6.x block layer and io_uring tree(s)