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Bluetooth: Move create/accept phy link completed callback to amp.c
[deliverable/linux.git] / drivers / bluetooth / btusb.c
CommitLineData
5e23b923
MH		 1/*
2 *
3 * Generic Bluetooth USB driver
4 *
9bfa35fe 5 * Copyright (C) 2005-2008 Marcel Holtmann <marcel@holtmann.org>
5e23b923
MH		 6 *
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 *
22 */
23
5e23b923 24#include <linux/module.h>
5e23b923 25#include <linux/usb.h>
dffd30ee 26#include <linux/firmware.h>
a2698a9b 27#include <asm/unaligned.h>
5e23b923
MH		 28
29#include <net/bluetooth/bluetooth.h>
30#include <net/bluetooth/hci_core.h>
31
4185a0f5 32#include "btintel.h"
1df1f591 33#include "btbcm.h"
db33c77d 34#include "btrtl.h"
1df1f591 35
34dced9b 36#define VERSION "0.8"
cfeb4145 37
90ab5ee9
RR		 38static bool disable_scofix;
39static bool force_scofix;
7a9d4020 40
917a3337 41static bool reset = true;
cfeb4145
MH		 42
43static struct usb_driver btusb_driver;
44
45#define BTUSB_IGNORE 0x01
7a9d4020
MH		 46#define BTUSB_DIGIANSWER 0x02
47#define BTUSB_CSR 0x04
48#define BTUSB_SNIFFER 0x08
49#define BTUSB_BCM92035 0x10
50#define BTUSB_BROKEN_ISOC 0x20
51#define BTUSB_WRONG_SCO_MTU 0x40
2d25f8b4 52#define BTUSB_ATH3012 0x80
dffd30ee 53#define BTUSB_INTEL 0x100
40df783d
MH		 54#define BTUSB_INTEL_BOOT 0x200
55#define BTUSB_BCM_PATCHRAM 0x400
ae8df494 56#define BTUSB_MARVELL 0x800
4fcef8ed 57#define BTUSB_SWAVE 0x1000
cda0dd78 58#define BTUSB_INTEL_NEW 0x2000
893ba544 59#define BTUSB_AMP 0x4000
3267c884 60#define BTUSB_QCA_ROME 0x8000
17b2772b 61#define BTUSB_BCM_APPLE 0x10000
a2698a9b 62#define BTUSB_REALTEK 0x20000
5e23b923 63
54265202 64static const struct usb_device_id btusb_table[] = {
5e23b923
MH		 65 /* Generic Bluetooth USB device */
66 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
67
893ba544
MH		 68 /* Generic Bluetooth AMP device */
69 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP },
70
1fa6535f 71 /* Apple-specific (Broadcom) devices */
17b2772b
MH		 72 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01),
73 .driver_info = BTUSB_BCM_APPLE },
1fa6535f 74
178c059e
CYC		 75 /* MediaTek MT76x0E */
76 { USB_DEVICE(0x0e8d, 0x763f) },
77
c510eae3 78 /* Broadcom SoftSailing reporting vendor specific */
2e8b5063 79 { USB_DEVICE(0x0a5c, 0x21e1) },
c510eae3 80
3cd01976
NI		 81 /* Apple MacBookPro 7,1 */
82 { USB_DEVICE(0x05ac, 0x8213) },
83
0a79f674
CL		 84 /* Apple iMac11,1 */
85 { USB_DEVICE(0x05ac, 0x8215) },
86
9c047157
NI		 87 /* Apple MacBookPro6,2 */
88 { USB_DEVICE(0x05ac, 0x8218) },
89
3e3ede7d
EH		 90 /* Apple MacBookAir3,1, MacBookAir3,2 */
91 { USB_DEVICE(0x05ac, 0x821b) },
92
a63b723d
PAVM		 93 /* Apple MacBookAir4,1 */
94 { USB_DEVICE(0x05ac, 0x821f) },
95
88d377b6
MAP		 96 /* Apple MacBookPro8,2 */
97 { USB_DEVICE(0x05ac, 0x821a) },
98
f78b6826
JK		 99 /* Apple MacMini5,1 */
100 { USB_DEVICE(0x05ac, 0x8281) },
101
cfeb4145 102 /* AVM BlueFRITZ! USB v2.0 */
4fcef8ed 103 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE },
cfeb4145
MH		 104
105 /* Bluetooth Ultraport Module from IBM */
106 { USB_DEVICE(0x04bf, 0x030a) },
107
108 /* ALPS Modules with non-standard id */
109 { USB_DEVICE(0x044e, 0x3001) },
110 { USB_DEVICE(0x044e, 0x3002) },
111
112 /* Ericsson with non-standard id */
113 { USB_DEVICE(0x0bdb, 0x1002) },
114
115 /* Canyon CN-BTU1 with HID interfaces */
7a9d4020 116 { USB_DEVICE(0x0c10, 0x0000) },
cfeb4145 117
d13431ca
WJS		 118 /* Broadcom BCM20702A0 */
119 { USB_DEVICE(0x413c, 0x8197) },
120
d049f4e5
MH		 121 /* Broadcom BCM20702B0 (Dynex/Insignia) */
122 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM },
123
98514036 124 /* Foxconn - Hon Hai */
6029ddc2
HS		 125 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01),
126 .driver_info = BTUSB_BCM_PATCHRAM },
98514036 127
8f0c304c
MD		 128 /* Lite-On Technology - Broadcom based */
129 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01),
130 .driver_info = BTUSB_BCM_PATCHRAM },
131
0b880062 132 /* Broadcom devices with vendor specific id */
10d4c673
PG		 133 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01),
134 .driver_info = BTUSB_BCM_PATCHRAM },
92c385f4 135
c2aef6e8 136 /* ASUSTek Computer - Broadcom based */
9a5abdaa
RD		 137 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01),
138 .driver_info = BTUSB_BCM_PATCHRAM },
c2aef6e8 139
5bcecf32 140 /* Belkin F8065bf - Broadcom based */
6331c686
MH		 141 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01),
142 .driver_info = BTUSB_BCM_PATCHRAM },
5bcecf32 143
9113bfd8 144 /* IMC Networks - Broadcom based */
6331c686
MH		 145 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01),
146 .driver_info = BTUSB_BCM_PATCHRAM },
9113bfd8 147
40df783d 148 /* Intel Bluetooth USB Bootloader (RAM module) */
d92f2df0
MH		 149 { USB_DEVICE(0x8087, 0x0a5a),
150 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
40df783d 151
5e23b923
MH		 152 { } /* Terminating entry */
153};
154
155MODULE_DEVICE_TABLE(usb, btusb_table);
156
54265202 157static const struct usb_device_id blacklist_table[] = {
cfeb4145
MH		 158 /* CSR BlueCore devices */
159 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
160
161 /* Broadcom BCM2033 without firmware */
162 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
163
be93112a 164 /* Atheros 3011 with sflash firmware */
0b880062
AS		 165 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
166 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
2eeff0b4 167 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE },
0b880062 168 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
be93112a 169 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
6eda541d 170 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
2a7bcccc 171 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
be93112a 172
509e7861
CYC		 173 /* Atheros AR9285 Malbec with sflash firmware */
174 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
175
d9f51b51 176 /* Atheros 3012 with sflash firmware */
0b880062
AS		 177 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
178 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
179 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
180 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
181 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
692c062e 182 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
4b552bc9 183 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
0b880062
AS		 184 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
185 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
186 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
187 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
1fb4e09a 188 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
0b880062
AS		 189 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
190 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
7e730c7f 191 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
ec0810d2 192 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
134d3b35 193 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
0b880062
AS		 194 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
195 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
89d2975f 196 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
a735f9e2 197 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
d66629c1 198 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
2d25f8b4 199 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
94a32d10 200 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
07c0ea87 201 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
b131237c 202 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
1e56f1eb 203 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
0b880062 204 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
ebaf5795 205 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
0b880062 206 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
ac71311e 207 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
0a3658cc 208 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
ca79f232 209 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
0b880062
AS		 210 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
211 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
eed307e2 212 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
5b77a1f3 213 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
3bb30a7c 214 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
033efa92 215 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
fa2f1394 216 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
0d0cef61 217 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
d9f51b51 218
e9036e33
CYC		 219 /* Atheros AR5BBU12 with sflash firmware */
220 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
221
85d59726 222 /* Atheros AR5BBU12 with sflash firmware */
bc21fde2 223 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
0b880062 224 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
85d59726 225
3267c884 226 /* QCA ROME chipset */
2054111b 227 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME },
c9e44474
MH		 228 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME },
229 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME },
3267c884 230
cfeb4145 231 /* Broadcom BCM2035 */
7a9d4020 232 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
0b880062
AS		 233 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
234 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 235
236 /* Broadcom BCM2045 */
7a9d4020
MH		 237 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
238 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
bdbef3d6 239
cfeb4145 240 /* IBM/Lenovo ThinkPad with Broadcom chip */
7a9d4020
MH		 241 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
242 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 243
244 /* HP laptop with Broadcom chip */
7a9d4020 245 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 246
247 /* Dell laptop with Broadcom chip */
7a9d4020 248 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 249
5ddd4a60 250 /* Dell Wireless 370 and 410 devices */
7a9d4020 251 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
5ddd4a60 252 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 253
7a9d4020
MH		 254 /* Belkin F8T012 and F8T013 devices */
255 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
256 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 257
5ddd4a60
MH		 258 /* Asus WL-BTD202 device */
259 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
260
261 /* Kensington Bluetooth USB adapter */
262 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
263
cfeb4145
MH		 264 /* RTX Telecom based adapters with buggy SCO support */
265 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
266 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
267
268 /* CONWISE Technology based adapters with buggy SCO support */
269 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
270
4fcef8ed 271 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
2eeac871 272 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE },
4fcef8ed 273
cfeb4145
MH		 274 /* Digianswer devices */
275 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
276 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
277
278 /* CSR BlueCore Bluetooth Sniffer */
4f64fa80
MH		 279 { USB_DEVICE(0x0a12, 0x0002),
280 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
cfeb4145
MH		 281
282 /* Frontline ComProbe Bluetooth Sniffer */
4f64fa80
MH		 283 { USB_DEVICE(0x16d3, 0x0002),
284 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
cfeb4145 285
cb1ee89f
MH		 286 /* Marvell Bluetooth devices */
287 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
288 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
289
d0ac9eb7 290 /* Intel Bluetooth devices */
407550fe 291 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
dffd30ee 292 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
ef4e5e4a 293 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL },
cda0dd78 294 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_NEW },
dffd30ee 295
d0ac9eb7
MH		 296 /* Other Intel Bluetooth devices */
297 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
298 .driver_info = BTUSB_IGNORE },
ae8df494 299
a2698a9b
DD		 300 /* Realtek Bluetooth devices */
301 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
302 .driver_info = BTUSB_REALTEK },
303
304 /* Additional Realtek 8723AE Bluetooth devices */
305 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
306 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
307
308 /* Additional Realtek 8723BE Bluetooth devices */
309 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
310 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
311 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
312 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
313 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
314
315 /* Additional Realtek 8821AE Bluetooth devices */
316 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
317 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
318 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
319 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
320 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
321
5e23b923
MH		 322 { } /* Terminating entry */
323};
324
9bfa35fe
MH		 325#define BTUSB_MAX_ISOC_FRAMES 10
326
5e23b923
MH		 327#define BTUSB_INTR_RUNNING 0
328#define BTUSB_BULK_RUNNING 1
9bfa35fe 329#define BTUSB_ISOC_RUNNING 2
7bee549e 330#define BTUSB_SUSPENDING 3
08b8b6c4 331#define BTUSB_DID_ISO_RESUME 4
cda0dd78
MH		 332#define BTUSB_BOOTLOADER 5
333#define BTUSB_DOWNLOADING 6
ce6bb929 334#define BTUSB_FIRMWARE_LOADED 7
cda0dd78 335#define BTUSB_FIRMWARE_FAILED 8
ce6bb929 336#define BTUSB_BOOTING 9
04b8c814 337#define BTUSB_RESET_RESUME 10
5e23b923
MH		 338
339struct btusb_data {
340 struct hci_dev *hdev;
341 struct usb_device *udev;
5fbcd260 342 struct usb_interface *intf;
9bfa35fe 343 struct usb_interface *isoc;
5e23b923 344
5e23b923
MH		 345 unsigned long flags;
346
347 struct work_struct work;
7bee549e 348 struct work_struct waker;
5e23b923 349
803b5836 350 struct usb_anchor deferred;
5e23b923 351 struct usb_anchor tx_anchor;
803b5836
MH		 352 int tx_in_flight;
353 spinlock_t txlock;
354
5e23b923
MH		 355 struct usb_anchor intr_anchor;
356 struct usb_anchor bulk_anchor;
9bfa35fe 357 struct usb_anchor isoc_anchor;
803b5836
MH		 358 spinlock_t rxlock;
359
360 struct sk_buff *evt_skb;
361 struct sk_buff *acl_skb;
362 struct sk_buff *sco_skb;
5e23b923
MH		 363
364 struct usb_endpoint_descriptor *intr_ep;
365 struct usb_endpoint_descriptor *bulk_tx_ep;
366 struct usb_endpoint_descriptor *bulk_rx_ep;
9bfa35fe
MH		 367 struct usb_endpoint_descriptor *isoc_tx_ep;
368 struct usb_endpoint_descriptor *isoc_rx_ep;
369
7a9d4020 370 __u8 cmdreq_type;
893ba544 371 __u8 cmdreq;
7a9d4020 372
43c2e57f 373 unsigned int sco_num;
9bfa35fe 374 int isoc_altsetting;
6a88adf2 375 int suspend_count;
2cbd3f5c 376
97307f51 377 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
2cbd3f5c 378 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
ace31982
KBYT		 379
380 int (*setup_on_usb)(struct hci_dev *hdev);
5e23b923
MH		 381};
382
803b5836
MH		 383static inline void btusb_free_frags(struct btusb_data *data)
384{
385 unsigned long flags;
386
387 spin_lock_irqsave(&data->rxlock, flags);
388
389 kfree_skb(data->evt_skb);
390 data->evt_skb = NULL;
391
392 kfree_skb(data->acl_skb);
393 data->acl_skb = NULL;
394
395 kfree_skb(data->sco_skb);
396 data->sco_skb = NULL;
397
398 spin_unlock_irqrestore(&data->rxlock, flags);
399}
400
1ffa4ad0
MH		 401static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
402{
803b5836
MH		 403 struct sk_buff *skb;
404 int err = 0;
405
406 spin_lock(&data->rxlock);
407 skb = data->evt_skb;
408
409 while (count) {
410 int len;
411
412 if (!skb) {
413 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
414 if (!skb) {
415 err = -ENOMEM;
416 break;
417 }
418
419 bt_cb(skb)->pkt_type = HCI_EVENT_PKT;
420 bt_cb(skb)->expect = HCI_EVENT_HDR_SIZE;
421 }
422
423 len = min_t(uint, bt_cb(skb)->expect, count);
424 memcpy(skb_put(skb, len), buffer, len);
425
426 count -= len;
427 buffer += len;
428 bt_cb(skb)->expect -= len;
429
430 if (skb->len == HCI_EVENT_HDR_SIZE) {
431 /* Complete event header */
432 bt_cb(skb)->expect = hci_event_hdr(skb)->plen;
433
434 if (skb_tailroom(skb) < bt_cb(skb)->expect) {
435 kfree_skb(skb);
436 skb = NULL;
437
438 err = -EILSEQ;
439 break;
440 }
441 }
442
443 if (bt_cb(skb)->expect == 0) {
444 /* Complete frame */
97307f51 445 data->recv_event(data->hdev, skb);
803b5836
MH		 446 skb = NULL;
447 }
448 }
449
450 data->evt_skb = skb;
451 spin_unlock(&data->rxlock);
452
453 return err;
1ffa4ad0
MH		 454}
455
456static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
457{
803b5836
MH		 458 struct sk_buff *skb;
459 int err = 0;
460
461 spin_lock(&data->rxlock);
462 skb = data->acl_skb;
463
464 while (count) {
465 int len;
466
467 if (!skb) {
468 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
469 if (!skb) {
470 err = -ENOMEM;
471 break;
472 }
473
474 bt_cb(skb)->pkt_type = HCI_ACLDATA_PKT;
475 bt_cb(skb)->expect = HCI_ACL_HDR_SIZE;
476 }
477
478 len = min_t(uint, bt_cb(skb)->expect, count);
479 memcpy(skb_put(skb, len), buffer, len);
480
481 count -= len;
482 buffer += len;
483 bt_cb(skb)->expect -= len;
484
485 if (skb->len == HCI_ACL_HDR_SIZE) {
486 __le16 dlen = hci_acl_hdr(skb)->dlen;
487
488 /* Complete ACL header */
489 bt_cb(skb)->expect = __le16_to_cpu(dlen);
490
491 if (skb_tailroom(skb) < bt_cb(skb)->expect) {
492 kfree_skb(skb);
493 skb = NULL;
494
495 err = -EILSEQ;
496 break;
497 }
498 }
499
500 if (bt_cb(skb)->expect == 0) {
501 /* Complete frame */
502 hci_recv_frame(data->hdev, skb);
503 skb = NULL;
504 }
505 }
506
507 data->acl_skb = skb;
508 spin_unlock(&data->rxlock);
509
510 return err;
1ffa4ad0
MH		 511}
512
513static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
514{
803b5836
MH		 515 struct sk_buff *skb;
516 int err = 0;
517
518 spin_lock(&data->rxlock);
519 skb = data->sco_skb;
520
521 while (count) {
522 int len;
523
524 if (!skb) {
525 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
526 if (!skb) {
527 err = -ENOMEM;
528 break;
529 }
530
531 bt_cb(skb)->pkt_type = HCI_SCODATA_PKT;
532 bt_cb(skb)->expect = HCI_SCO_HDR_SIZE;
533 }
534
535 len = min_t(uint, bt_cb(skb)->expect, count);
536 memcpy(skb_put(skb, len), buffer, len);
537
538 count -= len;
539 buffer += len;
540 bt_cb(skb)->expect -= len;
541
542 if (skb->len == HCI_SCO_HDR_SIZE) {
543 /* Complete SCO header */
544 bt_cb(skb)->expect = hci_sco_hdr(skb)->dlen;
545
546 if (skb_tailroom(skb) < bt_cb(skb)->expect) {
547 kfree_skb(skb);
548 skb = NULL;
549
550 err = -EILSEQ;
551 break;
552 }
553 }
554
555 if (bt_cb(skb)->expect == 0) {
556 /* Complete frame */
557 hci_recv_frame(data->hdev, skb);
558 skb = NULL;
559 }
560 }
561
562 data->sco_skb = skb;
563 spin_unlock(&data->rxlock);
564
565 return err;
1ffa4ad0
MH		 566}
567
5e23b923
MH		 568static void btusb_intr_complete(struct urb *urb)
569{
570 struct hci_dev *hdev = urb->context;
155961e8 571 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 572 int err;
573
89e7533d
MH		 574 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
575 urb->actual_length);
5e23b923
MH		 576
577 if (!test_bit(HCI_RUNNING, &hdev->flags))
578 return;
579
580 if (urb->status == 0) {
9bfa35fe
MH		 581 hdev->stat.byte_rx += urb->actual_length;
582
1ffa4ad0
MH		 583 if (btusb_recv_intr(data, urb->transfer_buffer,
584 urb->actual_length) < 0) {
5e23b923
MH		 585 BT_ERR("%s corrupted event packet", hdev->name);
586 hdev->stat.err_rx++;
587 }
85560c4a
CC		 588 } else if (urb->status == -ENOENT) {
589 /* Avoid suspend failed when usb_kill_urb */
590 return;
5e23b923
MH		 591 }
592
593 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
594 return;
595
7bee549e 596 usb_mark_last_busy(data->udev);
5e23b923
MH		 597 usb_anchor_urb(urb, &data->intr_anchor);
598
599 err = usb_submit_urb(urb, GFP_ATOMIC);
600 if (err < 0) {
4935f1c1
PB		 601 /* -EPERM: urb is being killed;
602 * -ENODEV: device got disconnected */
603 if (err != -EPERM && err != -ENODEV)
61faddf6 604 BT_ERR("%s urb %p failed to resubmit (%d)",
89e7533d 605 hdev->name, urb, -err);
5e23b923
MH		 606 usb_unanchor_urb(urb);
607 }
608}
609
2eda66f4 610static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
5e23b923 611{
155961e8 612 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 613 struct urb *urb;
614 unsigned char *buf;
615 unsigned int pipe;
616 int err, size;
617
618 BT_DBG("%s", hdev->name);
619
9bfa35fe
MH		 620 if (!data->intr_ep)
621 return -ENODEV;
622
2eda66f4 623 urb = usb_alloc_urb(0, mem_flags);
5e23b923
MH		 624 if (!urb)
625 return -ENOMEM;
626
627 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
628
2eda66f4 629 buf = kmalloc(size, mem_flags);
5e23b923
MH		 630 if (!buf) {
631 usb_free_urb(urb);
632 return -ENOMEM;
633 }
634
635 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
636
637 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
89e7533d 638 btusb_intr_complete, hdev, data->intr_ep->bInterval);
5e23b923
MH		 639
640 urb->transfer_flags |= URB_FREE_BUFFER;
641
642 usb_anchor_urb(urb, &data->intr_anchor);
643
2eda66f4 644 err = usb_submit_urb(urb, mem_flags);
5e23b923 645 if (err < 0) {
d4b8d1c9
PB		 646 if (err != -EPERM && err != -ENODEV)
647 BT_ERR("%s urb %p submission failed (%d)",
89e7533d 648 hdev->name, urb, -err);
5e23b923 649 usb_unanchor_urb(urb);
5e23b923
MH		 650 }
651
652 usb_free_urb(urb);
653
654 return err;
655}
656
657static void btusb_bulk_complete(struct urb *urb)
658{
659 struct hci_dev *hdev = urb->context;
155961e8 660 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 661 int err;
662
89e7533d
MH		 663 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
664 urb->actual_length);
5e23b923
MH		 665
666 if (!test_bit(HCI_RUNNING, &hdev->flags))
667 return;
668
669 if (urb->status == 0) {
9bfa35fe
MH		 670 hdev->stat.byte_rx += urb->actual_length;
671
2cbd3f5c 672 if (data->recv_bulk(data, urb->transfer_buffer,
1ffa4ad0 673 urb->actual_length) < 0) {
5e23b923
MH		 674 BT_ERR("%s corrupted ACL packet", hdev->name);
675 hdev->stat.err_rx++;
676 }
85560c4a
CC		 677 } else if (urb->status == -ENOENT) {
678 /* Avoid suspend failed when usb_kill_urb */
679 return;
5e23b923
MH		 680 }
681
682 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
683 return;
684
685 usb_anchor_urb(urb, &data->bulk_anchor);
652fd781 686 usb_mark_last_busy(data->udev);
5e23b923
MH		 687
688 err = usb_submit_urb(urb, GFP_ATOMIC);
689 if (err < 0) {
4935f1c1
PB		 690 /* -EPERM: urb is being killed;
691 * -ENODEV: device got disconnected */
692 if (err != -EPERM && err != -ENODEV)
61faddf6 693 BT_ERR("%s urb %p failed to resubmit (%d)",
89e7533d 694 hdev->name, urb, -err);
5e23b923
MH		 695 usb_unanchor_urb(urb);
696 }
697}
698
2eda66f4 699static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
5e23b923 700{
155961e8 701 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 702 struct urb *urb;
703 unsigned char *buf;
704 unsigned int pipe;
290ba200 705 int err, size = HCI_MAX_FRAME_SIZE;
5e23b923
MH		 706
707 BT_DBG("%s", hdev->name);
708
9bfa35fe
MH		 709 if (!data->bulk_rx_ep)
710 return -ENODEV;
711
2eda66f4 712 urb = usb_alloc_urb(0, mem_flags);
5e23b923
MH		 713 if (!urb)
714 return -ENOMEM;
715
2eda66f4 716 buf = kmalloc(size, mem_flags);
5e23b923
MH		 717 if (!buf) {
718 usb_free_urb(urb);
719 return -ENOMEM;
720 }
721
722 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
723
89e7533d
MH		 724 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
725 btusb_bulk_complete, hdev);
5e23b923
MH		 726
727 urb->transfer_flags |= URB_FREE_BUFFER;
728
7bee549e 729 usb_mark_last_busy(data->udev);
5e23b923
MH		 730 usb_anchor_urb(urb, &data->bulk_anchor);
731
2eda66f4 732 err = usb_submit_urb(urb, mem_flags);
5e23b923 733 if (err < 0) {
d4b8d1c9
PB		 734 if (err != -EPERM && err != -ENODEV)
735 BT_ERR("%s urb %p submission failed (%d)",
89e7533d 736 hdev->name, urb, -err);
5e23b923 737 usb_unanchor_urb(urb);
5e23b923
MH		 738 }
739
740 usb_free_urb(urb);
741
742 return err;
743}
744
9bfa35fe
MH		 745static void btusb_isoc_complete(struct urb *urb)
746{
747 struct hci_dev *hdev = urb->context;
155961e8 748 struct btusb_data *data = hci_get_drvdata(hdev);
9bfa35fe
MH		 749 int i, err;
750
89e7533d
MH		 751 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
752 urb->actual_length);
9bfa35fe
MH		 753
754 if (!test_bit(HCI_RUNNING, &hdev->flags))
755 return;
756
757 if (urb->status == 0) {
758 for (i = 0; i < urb->number_of_packets; i++) {
759 unsigned int offset = urb->iso_frame_desc[i].offset;
760 unsigned int length = urb->iso_frame_desc[i].actual_length;
761
762 if (urb->iso_frame_desc[i].status)
763 continue;
764
765 hdev->stat.byte_rx += length;
766
1ffa4ad0
MH		 767 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
768 length) < 0) {
9bfa35fe
MH		 769 BT_ERR("%s corrupted SCO packet", hdev->name);
770 hdev->stat.err_rx++;
771 }
772 }
85560c4a
CC		 773 } else if (urb->status == -ENOENT) {
774 /* Avoid suspend failed when usb_kill_urb */
775 return;
9bfa35fe
MH		 776 }
777
778 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
779 return;
780
781 usb_anchor_urb(urb, &data->isoc_anchor);
782
783 err = usb_submit_urb(urb, GFP_ATOMIC);
784 if (err < 0) {
4935f1c1
PB		 785 /* -EPERM: urb is being killed;
786 * -ENODEV: device got disconnected */
787 if (err != -EPERM && err != -ENODEV)
61faddf6 788 BT_ERR("%s urb %p failed to resubmit (%d)",
89e7533d 789 hdev->name, urb, -err);
9bfa35fe
MH		 790 usb_unanchor_urb(urb);
791 }
792}
793
42b16b3f 794static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
9bfa35fe
MH		 795{
796 int i, offset = 0;
797
798 BT_DBG("len %d mtu %d", len, mtu);
799
800 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
801 i++, offset += mtu, len -= mtu) {
802 urb->iso_frame_desc[i].offset = offset;
803 urb->iso_frame_desc[i].length = mtu;
804 }
805
806 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
807 urb->iso_frame_desc[i].offset = offset;
808 urb->iso_frame_desc[i].length = len;
809 i++;
810 }
811
812 urb->number_of_packets = i;
813}
814
2eda66f4 815static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
9bfa35fe 816{
155961e8 817 struct btusb_data *data = hci_get_drvdata(hdev);
9bfa35fe
MH		 818 struct urb *urb;
819 unsigned char *buf;
820 unsigned int pipe;
821 int err, size;
822
823 BT_DBG("%s", hdev->name);
824
825 if (!data->isoc_rx_ep)
826 return -ENODEV;
827
2eda66f4 828 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
9bfa35fe
MH		 829 if (!urb)
830 return -ENOMEM;
831
832 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
833 BTUSB_MAX_ISOC_FRAMES;
834
2eda66f4 835 buf = kmalloc(size, mem_flags);
9bfa35fe
MH		 836 if (!buf) {
837 usb_free_urb(urb);
838 return -ENOMEM;
839 }
840
841 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
842
fa0fb93f 843 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
89e7533d 844 hdev, data->isoc_rx_ep->bInterval);
9bfa35fe 845
89e7533d 846 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
9bfa35fe
MH		 847
848 __fill_isoc_descriptor(urb, size,
89e7533d 849 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
9bfa35fe
MH		 850
851 usb_anchor_urb(urb, &data->isoc_anchor);
852
2eda66f4 853 err = usb_submit_urb(urb, mem_flags);
9bfa35fe 854 if (err < 0) {
d4b8d1c9
PB		 855 if (err != -EPERM && err != -ENODEV)
856 BT_ERR("%s urb %p submission failed (%d)",
89e7533d 857 hdev->name, urb, -err);
9bfa35fe 858 usb_unanchor_urb(urb);
9bfa35fe
MH		 859 }
860
861 usb_free_urb(urb);
862
863 return err;
864}
865
5e23b923 866static void btusb_tx_complete(struct urb *urb)
7bee549e
ON		 867{
868 struct sk_buff *skb = urb->context;
89e7533d 869 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
155961e8 870 struct btusb_data *data = hci_get_drvdata(hdev);
7bee549e 871
89e7533d
MH		 872 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
873 urb->actual_length);
7bee549e
ON		 874
875 if (!test_bit(HCI_RUNNING, &hdev->flags))
876 goto done;
877
878 if (!urb->status)
879 hdev->stat.byte_tx += urb->transfer_buffer_length;
880 else
881 hdev->stat.err_tx++;
882
883done:
884 spin_lock(&data->txlock);
885 data->tx_in_flight--;
886 spin_unlock(&data->txlock);
887
888 kfree(urb->setup_packet);
889
890 kfree_skb(skb);
891}
892
893static void btusb_isoc_tx_complete(struct urb *urb)
5e23b923
MH		 894{
895 struct sk_buff *skb = urb->context;
89e7533d 896 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
5e23b923 897
89e7533d
MH		 898 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
899 urb->actual_length);
5e23b923
MH		 900
901 if (!test_bit(HCI_RUNNING, &hdev->flags))
902 goto done;
903
904 if (!urb->status)
905 hdev->stat.byte_tx += urb->transfer_buffer_length;
906 else
907 hdev->stat.err_tx++;
908
909done:
910 kfree(urb->setup_packet);
911
912 kfree_skb(skb);
913}
914
915static int btusb_open(struct hci_dev *hdev)
916{
155961e8 917 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 918 int err;
919
920 BT_DBG("%s", hdev->name);
921
ace31982
KBYT		 922 /* Patching USB firmware files prior to starting any URBs of HCI path
923 * It is more safe to use USB bulk channel for downloading USB patch
924 */
925 if (data->setup_on_usb) {
926 err = data->setup_on_usb(hdev);
eb50042f 927 if (err < 0)
ace31982
KBYT		 928 return err;
929 }
930
7bee549e
ON		 931 err = usb_autopm_get_interface(data->intf);
932 if (err < 0)
933 return err;
934
935 data->intf->needs_remote_wakeup = 1;
936
5e23b923 937 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
7bee549e 938 goto done;
5e23b923
MH		 939
940 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
7bee549e 941 goto done;
5e23b923 942
2eda66f4 943 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
43c2e57f
MH		 944 if (err < 0)
945 goto failed;
946
947 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
5e23b923 948 if (err < 0) {
43c2e57f
MH		 949 usb_kill_anchored_urbs(&data->intr_anchor);
950 goto failed;
5e23b923
MH		 951 }
952
43c2e57f
MH		 953 set_bit(BTUSB_BULK_RUNNING, &data->flags);
954 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
955
7bee549e
ON		 956done:
957 usb_autopm_put_interface(data->intf);
43c2e57f
MH		 958 return 0;
959
960failed:
961 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
962 clear_bit(HCI_RUNNING, &hdev->flags);
7bee549e 963 usb_autopm_put_interface(data->intf);
5e23b923
MH		 964 return err;
965}
966
7bee549e
ON		 967static void btusb_stop_traffic(struct btusb_data *data)
968{
969 usb_kill_anchored_urbs(&data->intr_anchor);
970 usb_kill_anchored_urbs(&data->bulk_anchor);
971 usb_kill_anchored_urbs(&data->isoc_anchor);
972}
973
5e23b923
MH		 974static int btusb_close(struct hci_dev *hdev)
975{
155961e8 976 struct btusb_data *data = hci_get_drvdata(hdev);
7bee549e 977 int err;
5e23b923
MH		 978
979 BT_DBG("%s", hdev->name);
980
981 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
982 return 0;
983
e8c3c3d2 984 cancel_work_sync(&data->work);
404291ac 985 cancel_work_sync(&data->waker);
e8c3c3d2 986
9bfa35fe 987 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
5e23b923 988 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
5e23b923 989 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
7bee549e
ON		 990
991 btusb_stop_traffic(data);
803b5836
MH		 992 btusb_free_frags(data);
993
7bee549e
ON		 994 err = usb_autopm_get_interface(data->intf);
995 if (err < 0)
7b8e2c1d 996 goto failed;
7bee549e
ON		 997
998 data->intf->needs_remote_wakeup = 0;
999 usb_autopm_put_interface(data->intf);
5e23b923 1000
7b8e2c1d
ON		 1001failed:
1002 usb_scuttle_anchored_urbs(&data->deferred);
5e23b923
MH		 1003 return 0;
1004}
1005
1006static int btusb_flush(struct hci_dev *hdev)
1007{
155961e8 1008 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 1009
1010 BT_DBG("%s", hdev->name);
1011
1012 usb_kill_anchored_urbs(&data->tx_anchor);
803b5836 1013 btusb_free_frags(data);
5e23b923
MH		 1014
1015 return 0;
1016}
1017
047b2ec8 1018static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
5e23b923 1019{
155961e8 1020 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 1021 struct usb_ctrlrequest *dr;
1022 struct urb *urb;
1023 unsigned int pipe;
5e23b923 1024
047b2ec8
MH		 1025 urb = usb_alloc_urb(0, GFP_KERNEL);
1026 if (!urb)
1027 return ERR_PTR(-ENOMEM);
5e23b923 1028
047b2ec8
MH		 1029 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
1030 if (!dr) {
1031 usb_free_urb(urb);
1032 return ERR_PTR(-ENOMEM);
1033 }
5e23b923 1034
047b2ec8 1035 dr->bRequestType = data->cmdreq_type;
893ba544 1036 dr->bRequest = data->cmdreq;
047b2ec8
MH		 1037 dr->wIndex = 0;
1038 dr->wValue = 0;
1039 dr->wLength = __cpu_to_le16(skb->len);
7bd8f09f 1040
047b2ec8 1041 pipe = usb_sndctrlpipe(data->udev, 0x00);
5e23b923 1042
89e7533d 1043 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
047b2ec8 1044 skb->data, skb->len, btusb_tx_complete, skb);
5e23b923 1045
89e7533d 1046 skb->dev = (void *)hdev;
5e23b923 1047
047b2ec8
MH		 1048 return urb;
1049}
5e23b923 1050
047b2ec8
MH		 1051static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
1052{
1053 struct btusb_data *data = hci_get_drvdata(hdev);
1054 struct urb *urb;
1055 unsigned int pipe;
5e23b923 1056
047b2ec8
MH		 1057 if (!data->bulk_tx_ep)
1058 return ERR_PTR(-ENODEV);
9bfa35fe 1059
047b2ec8
MH		 1060 urb = usb_alloc_urb(0, GFP_KERNEL);
1061 if (!urb)
1062 return ERR_PTR(-ENOMEM);
5e23b923 1063
047b2ec8 1064 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
5e23b923 1065
047b2ec8
MH		 1066 usb_fill_bulk_urb(urb, data->udev, pipe,
1067 skb->data, skb->len, btusb_tx_complete, skb);
5e23b923 1068
89e7533d 1069 skb->dev = (void *)hdev;
5e23b923 1070
047b2ec8
MH		 1071 return urb;
1072}
9bfa35fe 1073
047b2ec8
MH		 1074static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
1075{
1076 struct btusb_data *data = hci_get_drvdata(hdev);
1077 struct urb *urb;
1078 unsigned int pipe;
9bfa35fe 1079
047b2ec8
MH		 1080 if (!data->isoc_tx_ep)
1081 return ERR_PTR(-ENODEV);
9bfa35fe 1082
047b2ec8
MH		 1083 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
1084 if (!urb)
1085 return ERR_PTR(-ENOMEM);
9bfa35fe 1086
047b2ec8 1087 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
9bfa35fe 1088
047b2ec8
MH		 1089 usb_fill_int_urb(urb, data->udev, pipe,
1090 skb->data, skb->len, btusb_isoc_tx_complete,
1091 skb, data->isoc_tx_ep->bInterval);
9bfa35fe 1092
047b2ec8 1093 urb->transfer_flags = URB_ISO_ASAP;
5e23b923 1094
047b2ec8
MH		 1095 __fill_isoc_descriptor(urb, skb->len,
1096 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
5e23b923 1097
89e7533d 1098 skb->dev = (void *)hdev;
047b2ec8
MH		 1099
1100 return urb;
1101}
1102
1103static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
1104{
1105 struct btusb_data *data = hci_get_drvdata(hdev);
1106 int err;
7bee549e 1107
5e23b923
MH		 1108 usb_anchor_urb(urb, &data->tx_anchor);
1109
e9753eff 1110 err = usb_submit_urb(urb, GFP_KERNEL);
5e23b923 1111 if (err < 0) {
5a9b80e2
PB		 1112 if (err != -EPERM && err != -ENODEV)
1113 BT_ERR("%s urb %p submission failed (%d)",
89e7533d 1114 hdev->name, urb, -err);
5e23b923
MH		 1115 kfree(urb->setup_packet);
1116 usb_unanchor_urb(urb);
7bee549e
ON		 1117 } else {
1118 usb_mark_last_busy(data->udev);
5e23b923
MH		 1119 }
1120
54a8a79c 1121 usb_free_urb(urb);
5e23b923
MH		 1122 return err;
1123}
1124
047b2ec8
MH		 1125static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
1126{
1127 struct btusb_data *data = hci_get_drvdata(hdev);
1128 unsigned long flags;
1129 bool suspending;
1130
1131 spin_lock_irqsave(&data->txlock, flags);
1132 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
1133 if (!suspending)
1134 data->tx_in_flight++;
1135 spin_unlock_irqrestore(&data->txlock, flags);
1136
1137 if (!suspending)
1138 return submit_tx_urb(hdev, urb);
1139
1140 usb_anchor_urb(urb, &data->deferred);
1141 schedule_work(&data->waker);
1142
1143 usb_free_urb(urb);
1144 return 0;
1145}
1146
1147static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
1148{
1149 struct urb *urb;
1150
1151 BT_DBG("%s", hdev->name);
1152
1153 if (!test_bit(HCI_RUNNING, &hdev->flags))
1154 return -EBUSY;
1155
1156 switch (bt_cb(skb)->pkt_type) {
1157 case HCI_COMMAND_PKT:
1158 urb = alloc_ctrl_urb(hdev, skb);
1159 if (IS_ERR(urb))
1160 return PTR_ERR(urb);
1161
1162 hdev->stat.cmd_tx++;
1163 return submit_or_queue_tx_urb(hdev, urb);
1164
1165 case HCI_ACLDATA_PKT:
1166 urb = alloc_bulk_urb(hdev, skb);
1167 if (IS_ERR(urb))
1168 return PTR_ERR(urb);
1169
1170 hdev->stat.acl_tx++;
1171 return submit_or_queue_tx_urb(hdev, urb);
1172
1173 case HCI_SCODATA_PKT:
1174 if (hci_conn_num(hdev, SCO_LINK) < 1)
1175 return -ENODEV;
1176
1177 urb = alloc_isoc_urb(hdev, skb);
1178 if (IS_ERR(urb))
1179 return PTR_ERR(urb);
1180
1181 hdev->stat.sco_tx++;
1182 return submit_tx_urb(hdev, urb);
1183 }
1184
1185 return -EILSEQ;
1186}
1187
5e23b923
MH		 1188static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
1189{
155961e8 1190 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 1191
1192 BT_DBG("%s evt %d", hdev->name, evt);
1193
014f7bc7
MH		 1194 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
1195 data->sco_num = hci_conn_num(hdev, SCO_LINK);
43c2e57f 1196 schedule_work(&data->work);
a780efa8 1197 }
5e23b923
MH		 1198}
1199
42b16b3f 1200static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
9bfa35fe 1201{
155961e8 1202 struct btusb_data *data = hci_get_drvdata(hdev);
9bfa35fe
MH		 1203 struct usb_interface *intf = data->isoc;
1204 struct usb_endpoint_descriptor *ep_desc;
1205 int i, err;
1206
1207 if (!data->isoc)
1208 return -ENODEV;
1209
1210 err = usb_set_interface(data->udev, 1, altsetting);
1211 if (err < 0) {
1212 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
1213 return err;
1214 }
1215
1216 data->isoc_altsetting = altsetting;
1217
1218 data->isoc_tx_ep = NULL;
1219 data->isoc_rx_ep = NULL;
1220
1221 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1222 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1223
1224 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
1225 data->isoc_tx_ep = ep_desc;
1226 continue;
1227 }
1228
1229 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
1230 data->isoc_rx_ep = ep_desc;
1231 continue;
1232 }
1233 }
1234
1235 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
1236 BT_ERR("%s invalid SCO descriptors", hdev->name);
1237 return -ENODEV;
1238 }
1239
1240 return 0;
1241}
1242
5e23b923
MH		 1243static void btusb_work(struct work_struct *work)
1244{
1245 struct btusb_data *data = container_of(work, struct btusb_data, work);
1246 struct hci_dev *hdev = data->hdev;
f4001d28 1247 int new_alts;
7bee549e 1248 int err;
5e23b923 1249
014f7bc7 1250 if (data->sco_num > 0) {
08b8b6c4 1251 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
8efdd0cd 1252 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
7bee549e
ON		 1253 if (err < 0) {
1254 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1255 usb_kill_anchored_urbs(&data->isoc_anchor);
1256 return;
1257 }
1258
08b8b6c4 1259 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
7bee549e 1260 }
f4001d28
MA		 1261
1262 if (hdev->voice_setting & 0x0020) {
1263 static const int alts[3] = { 2, 4, 5 };
89e7533d 1264
014f7bc7 1265 new_alts = alts[data->sco_num - 1];
f4001d28 1266 } else {
014f7bc7 1267 new_alts = data->sco_num;
f4001d28
MA		 1268 }
1269
1270 if (data->isoc_altsetting != new_alts) {
9bfa35fe
MH		 1271 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1272 usb_kill_anchored_urbs(&data->isoc_anchor);
1273
f4001d28 1274 if (__set_isoc_interface(hdev, new_alts) < 0)
9bfa35fe
MH		 1275 return;
1276 }
1277
1278 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2eda66f4 1279 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
9bfa35fe
MH		 1280 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1281 else
2eda66f4 1282 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
9bfa35fe
MH		 1283 }
1284 } else {
1285 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1286 usb_kill_anchored_urbs(&data->isoc_anchor);
1287
1288 __set_isoc_interface(hdev, 0);
08b8b6c4 1289 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
8efdd0cd 1290 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
5e23b923
MH		 1291 }
1292}
1293
7bee549e
ON		 1294static void btusb_waker(struct work_struct *work)
1295{
1296 struct btusb_data *data = container_of(work, struct btusb_data, waker);
1297 int err;
1298
1299 err = usb_autopm_get_interface(data->intf);
1300 if (err < 0)
1301 return;
1302
1303 usb_autopm_put_interface(data->intf);
1304}
1305
9f8f962c
MH		 1306static int btusb_setup_bcm92035(struct hci_dev *hdev)
1307{
1308 struct sk_buff *skb;
1309 u8 val = 0x00;
1310
1311 BT_DBG("%s", hdev->name);
1312
1313 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
1314 if (IS_ERR(skb))
1315 BT_ERR("BCM92035 command failed (%ld)", -PTR_ERR(skb));
1316 else
1317 kfree_skb(skb);
1318
1319 return 0;
1320}
1321
81cac64b
MH		 1322static int btusb_setup_csr(struct hci_dev *hdev)
1323{
1324 struct hci_rp_read_local_version *rp;
1325 struct sk_buff *skb;
81cac64b
MH		 1326
1327 BT_DBG("%s", hdev->name);
1328
7cd84d72
MH		 1329 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1330 HCI_INIT_TIMEOUT);
1331 if (IS_ERR(skb)) {
1332 int err = PTR_ERR(skb);
1333 BT_ERR("%s: CSR: Local version failed (%d)", hdev->name, err);
1334 return err;
1335 }
1336
1337 if (skb->len != sizeof(struct hci_rp_read_local_version)) {
1338 BT_ERR("%s: CSR: Local version length mismatch", hdev->name);
1339 kfree_skb(skb);
1340 return -EIO;
1341 }
81cac64b 1342
89e7533d 1343 rp = (struct hci_rp_read_local_version *)skb->data;
81cac64b 1344
9641d343
MH		 1345 if (le16_to_cpu(rp->manufacturer) != 10) {
1346 /* Clear the reset quirk since this is not an actual
1347 * early Bluetooth 1.1 device from CSR.
1348 */
1349 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
81cac64b 1350
9641d343
MH		 1351 /* These fake CSR controllers have all a broken
1352 * stored link key handling and so just disable it.
1353 */
1354 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
1355 }
81cac64b
MH		 1356
1357 kfree_skb(skb);
1358
9641d343 1359 return 0;
81cac64b
MH		 1360}
1361
dffd30ee 1362static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev,
89e7533d 1363 struct intel_version *ver)
dffd30ee
THJA		 1364{
1365 const struct firmware *fw;
1366 char fwname[64];
1367 int ret;
1368
1369 snprintf(fwname, sizeof(fwname),
1370 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq",
1371 ver->hw_platform, ver->hw_variant, ver->hw_revision,
1372 ver->fw_variant, ver->fw_revision, ver->fw_build_num,
1373 ver->fw_build_ww, ver->fw_build_yy);
1374
1375 ret = request_firmware(&fw, fwname, &hdev->dev);
1376 if (ret < 0) {
1377 if (ret == -EINVAL) {
1378 BT_ERR("%s Intel firmware file request failed (%d)",
1379 hdev->name, ret);
1380 return NULL;
1381 }
1382
1383 BT_ERR("%s failed to open Intel firmware file: %s(%d)",
1384 hdev->name, fwname, ret);
1385
1386 /* If the correct firmware patch file is not found, use the
1387 * default firmware patch file instead
1388 */
1389 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq",
1390 ver->hw_platform, ver->hw_variant);
1391 if (request_firmware(&fw, fwname, &hdev->dev) < 0) {
1392 BT_ERR("%s failed to open default Intel fw file: %s",
1393 hdev->name, fwname);
1394 return NULL;
1395 }
1396 }
1397
1398 BT_INFO("%s: Intel Bluetooth firmware file: %s", hdev->name, fwname);
1399
1400 return fw;
1401}
1402
1403static int btusb_setup_intel_patching(struct hci_dev *hdev,
1404 const struct firmware *fw,
1405 const u8 **fw_ptr, int *disable_patch)
1406{
1407 struct sk_buff *skb;
1408 struct hci_command_hdr *cmd;
1409 const u8 *cmd_param;
1410 struct hci_event_hdr *evt = NULL;
1411 const u8 *evt_param = NULL;
1412 int remain = fw->size - (*fw_ptr - fw->data);
1413
1414 /* The first byte indicates the types of the patch command or event.
1415 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes
1416 * in the current firmware buffer doesn't start with 0x01 or
1417 * the size of remain buffer is smaller than HCI command header,
1418 * the firmware file is corrupted and it should stop the patching
1419 * process.
1420 */
1421 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) {
1422 BT_ERR("%s Intel fw corrupted: invalid cmd read", hdev->name);
1423 return -EINVAL;
1424 }
1425 (*fw_ptr)++;
1426 remain--;
1427
1428 cmd = (struct hci_command_hdr *)(*fw_ptr);
1429 *fw_ptr += sizeof(*cmd);
1430 remain -= sizeof(*cmd);
1431
1432 /* Ensure that the remain firmware data is long enough than the length
1433 * of command parameter. If not, the firmware file is corrupted.
1434 */
1435 if (remain < cmd->plen) {
1436 BT_ERR("%s Intel fw corrupted: invalid cmd len", hdev->name);
1437 return -EFAULT;
1438 }
1439
1440 /* If there is a command that loads a patch in the firmware
1441 * file, then enable the patch upon success, otherwise just
1442 * disable the manufacturer mode, for example patch activation
1443 * is not required when the default firmware patch file is used
1444 * because there are no patch data to load.
1445 */
1446 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e)
1447 *disable_patch = 0;
1448
1449 cmd_param = *fw_ptr;
1450 *fw_ptr += cmd->plen;
1451 remain -= cmd->plen;
1452
1453 /* This reads the expected events when the above command is sent to the
1454 * device. Some vendor commands expects more than one events, for
1455 * example command status event followed by vendor specific event.
1456 * For this case, it only keeps the last expected event. so the command
1457 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of
1458 * last expected event.
1459 */
1460 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) {
1461 (*fw_ptr)++;
1462 remain--;
1463
1464 evt = (struct hci_event_hdr *)(*fw_ptr);
1465 *fw_ptr += sizeof(*evt);
1466 remain -= sizeof(*evt);
1467
1468 if (remain < evt->plen) {
1469 BT_ERR("%s Intel fw corrupted: invalid evt len",
1470 hdev->name);
1471 return -EFAULT;
1472 }
1473
1474 evt_param = *fw_ptr;
1475 *fw_ptr += evt->plen;
1476 remain -= evt->plen;
1477 }
1478
1479 /* Every HCI commands in the firmware file has its correspond event.
1480 * If event is not found or remain is smaller than zero, the firmware
1481 * file is corrupted.
1482 */
1483 if (!evt || !evt_param || remain < 0) {
1484 BT_ERR("%s Intel fw corrupted: invalid evt read", hdev->name);
1485 return -EFAULT;
1486 }
1487
1488 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen,
1489 cmd_param, evt->evt, HCI_INIT_TIMEOUT);
1490 if (IS_ERR(skb)) {
1491 BT_ERR("%s sending Intel patch command (0x%4.4x) failed (%ld)",
1492 hdev->name, cmd->opcode, PTR_ERR(skb));
d9c78e97 1493 return PTR_ERR(skb);
dffd30ee
THJA		 1494 }
1495
1496 /* It ensures that the returned event matches the event data read from
1497 * the firmware file. At fist, it checks the length and then
1498 * the contents of the event.
1499 */
1500 if (skb->len != evt->plen) {
1501 BT_ERR("%s mismatch event length (opcode 0x%4.4x)", hdev->name,
1502 le16_to_cpu(cmd->opcode));
1503 kfree_skb(skb);
1504 return -EFAULT;
1505 }
1506
1507 if (memcmp(skb->data, evt_param, evt->plen)) {
1508 BT_ERR("%s mismatch event parameter (opcode 0x%4.4x)",
1509 hdev->name, le16_to_cpu(cmd->opcode));
1510 kfree_skb(skb);
1511 return -EFAULT;
1512 }
1513 kfree_skb(skb);
1514
1515 return 0;
1516}
1517
1518static int btusb_setup_intel(struct hci_dev *hdev)
1519{
1520 struct sk_buff *skb;
1521 const struct firmware *fw;
1522 const u8 *fw_ptr;
1523 int disable_patch;
1524 struct intel_version *ver;
1525
1526 const u8 mfg_enable[] = { 0x01, 0x00 };
1527 const u8 mfg_disable[] = { 0x00, 0x00 };
1528 const u8 mfg_reset_deactivate[] = { 0x00, 0x01 };
1529 const u8 mfg_reset_activate[] = { 0x00, 0x02 };
1530
1531 BT_DBG("%s", hdev->name);
1532
1533 /* The controller has a bug with the first HCI command sent to it
1534 * returning number of completed commands as zero. This would stall the
1535 * command processing in the Bluetooth core.
1536 *
1537 * As a workaround, send HCI Reset command first which will reset the
1538 * number of completed commands and allow normal command processing
1539 * from now on.
1540 */
1541 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1542 if (IS_ERR(skb)) {
1543 BT_ERR("%s sending initial HCI reset command failed (%ld)",
1544 hdev->name, PTR_ERR(skb));
d9c78e97 1545 return PTR_ERR(skb);
dffd30ee
THJA		 1546 }
1547 kfree_skb(skb);
1548
1549 /* Read Intel specific controller version first to allow selection of
1550 * which firmware file to load.
1551 *
1552 * The returned information are hardware variant and revision plus
1553 * firmware variant, revision and build number.
1554 */
1555 skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT);
1556 if (IS_ERR(skb)) {
1557 BT_ERR("%s reading Intel fw version command failed (%ld)",
1558 hdev->name, PTR_ERR(skb));
d9c78e97 1559 return PTR_ERR(skb);
dffd30ee
THJA		 1560 }
1561
1562 if (skb->len != sizeof(*ver)) {
1563 BT_ERR("%s Intel version event length mismatch", hdev->name);
1564 kfree_skb(skb);
1565 return -EIO;
1566 }
1567
1568 ver = (struct intel_version *)skb->data;
dffd30ee
THJA		 1569
1570 BT_INFO("%s: read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
1571 hdev->name, ver->hw_platform, ver->hw_variant,
1572 ver->hw_revision, ver->fw_variant, ver->fw_revision,
1573 ver->fw_build_num, ver->fw_build_ww, ver->fw_build_yy,
1574 ver->fw_patch_num);
1575
1576 /* fw_patch_num indicates the version of patch the device currently
1577 * have. If there is no patch data in the device, it is always 0x00.
1578 * So, if it is other than 0x00, no need to patch the deivce again.
1579 */
1580 if (ver->fw_patch_num) {
1581 BT_INFO("%s: Intel device is already patched. patch num: %02x",
1582 hdev->name, ver->fw_patch_num);
1583 kfree_skb(skb);
4185a0f5 1584 btintel_check_bdaddr(hdev);
dffd30ee
THJA		 1585 return 0;
1586 }
1587
1588 /* Opens the firmware patch file based on the firmware version read
1589 * from the controller. If it fails to open the matching firmware
1590 * patch file, it tries to open the default firmware patch file.
1591 * If no patch file is found, allow the device to operate without
1592 * a patch.
1593 */
1594 fw = btusb_setup_intel_get_fw(hdev, ver);
1595 if (!fw) {
1596 kfree_skb(skb);
4185a0f5 1597 btintel_check_bdaddr(hdev);
dffd30ee
THJA		 1598 return 0;
1599 }
1600 fw_ptr = fw->data;
1601
ecffc804
MH		 1602 kfree_skb(skb);
1603
dffd30ee
THJA		 1604 /* This Intel specific command enables the manufacturer mode of the
1605 * controller.
1606 *
1607 * Only while this mode is enabled, the driver can download the
1608 * firmware patch data and configuration parameters.
1609 */
1610 skb = __hci_cmd_sync(hdev, 0xfc11, 2, mfg_enable, HCI_INIT_TIMEOUT);
1611 if (IS_ERR(skb)) {
1612 BT_ERR("%s entering Intel manufacturer mode failed (%ld)",
1613 hdev->name, PTR_ERR(skb));
1614 release_firmware(fw);
d9c78e97 1615 return PTR_ERR(skb);
dffd30ee
THJA		 1616 }
1617
dffd30ee
THJA		 1618 kfree_skb(skb);
1619
1620 disable_patch = 1;
1621
1622 /* The firmware data file consists of list of Intel specific HCI
1623 * commands and its expected events. The first byte indicates the
1624 * type of the message, either HCI command or HCI event.
1625 *
1626 * It reads the command and its expected event from the firmware file,
1627 * and send to the controller. Once __hci_cmd_sync_ev() returns,
1628 * the returned event is compared with the event read from the firmware
1629 * file and it will continue until all the messages are downloaded to
1630 * the controller.
1631 *
1632 * Once the firmware patching is completed successfully,
1633 * the manufacturer mode is disabled with reset and activating the
1634 * downloaded patch.
1635 *
1636 * If the firmware patching fails, the manufacturer mode is
1637 * disabled with reset and deactivating the patch.
1638 *
1639 * If the default patch file is used, no reset is done when disabling
1640 * the manufacturer.
1641 */
1642 while (fw->size > fw_ptr - fw->data) {
1643 int ret;
1644
1645 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr,
1646 &disable_patch);
1647 if (ret < 0)
1648 goto exit_mfg_deactivate;
1649 }
1650
1651 release_firmware(fw);
1652
1653 if (disable_patch)
1654 goto exit_mfg_disable;
1655
1656 /* Patching completed successfully and disable the manufacturer mode
1657 * with reset and activate the downloaded firmware patches.
1658 */
1659 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_activate),
1660 mfg_reset_activate, HCI_INIT_TIMEOUT);
1661 if (IS_ERR(skb)) {
1662 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1663 hdev->name, PTR_ERR(skb));
d9c78e97 1664 return PTR_ERR(skb);
dffd30ee
THJA		 1665 }
1666 kfree_skb(skb);
1667
1668 BT_INFO("%s: Intel Bluetooth firmware patch completed and activated",
1669 hdev->name);
1670
4185a0f5 1671 btintel_check_bdaddr(hdev);
dffd30ee
THJA		 1672 return 0;
1673
1674exit_mfg_disable:
1675 /* Disable the manufacturer mode without reset */
1676 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_disable), mfg_disable,
1677 HCI_INIT_TIMEOUT);
1678 if (IS_ERR(skb)) {
1679 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1680 hdev->name, PTR_ERR(skb));
d9c78e97 1681 return PTR_ERR(skb);
dffd30ee
THJA		 1682 }
1683 kfree_skb(skb);
1684
1685 BT_INFO("%s: Intel Bluetooth firmware patch completed", hdev->name);
40cb0984 1686
4185a0f5 1687 btintel_check_bdaddr(hdev);
dffd30ee
THJA		 1688 return 0;
1689
1690exit_mfg_deactivate:
1691 release_firmware(fw);
1692
1693 /* Patching failed. Disable the manufacturer mode with reset and
1694 * deactivate the downloaded firmware patches.
1695 */
1696 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_deactivate),
1697 mfg_reset_deactivate, HCI_INIT_TIMEOUT);
1698 if (IS_ERR(skb)) {
1699 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1700 hdev->name, PTR_ERR(skb));
d9c78e97 1701 return PTR_ERR(skb);
dffd30ee
THJA		 1702 }
1703 kfree_skb(skb);
1704
1705 BT_INFO("%s: Intel Bluetooth firmware patch completed and deactivated",
1706 hdev->name);
1707
4185a0f5 1708 btintel_check_bdaddr(hdev);
dffd30ee
THJA		 1709 return 0;
1710}
1711
cda0dd78
MH		 1712static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
1713{
1714 struct sk_buff *skb;
1715 struct hci_event_hdr *hdr;
1716 struct hci_ev_cmd_complete *evt;
1717
1718 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_ATOMIC);
1719 if (!skb)
1720 return -ENOMEM;
1721
1722 hdr = (struct hci_event_hdr *)skb_put(skb, sizeof(*hdr));
1723 hdr->evt = HCI_EV_CMD_COMPLETE;
1724 hdr->plen = sizeof(*evt) + 1;
1725
1726 evt = (struct hci_ev_cmd_complete *)skb_put(skb, sizeof(*evt));
1727 evt->ncmd = 0x01;
1728 evt->opcode = cpu_to_le16(opcode);
1729
1730 *skb_put(skb, 1) = 0x00;
1731
1732 bt_cb(skb)->pkt_type = HCI_EVENT_PKT;
1733
1734 return hci_recv_frame(hdev, skb);
1735}
1736
1737static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
1738 int count)
1739{
1740 /* When the device is in bootloader mode, then it can send
1741 * events via the bulk endpoint. These events are treated the
1742 * same way as the ones received from the interrupt endpoint.
1743 */
1744 if (test_bit(BTUSB_BOOTLOADER, &data->flags))
1745 return btusb_recv_intr(data, buffer, count);
1746
1747 return btusb_recv_bulk(data, buffer, count);
1748}
1749
ccd6da2a
MH		 1750static void btusb_intel_bootup(struct btusb_data *data, const void *ptr,
1751 unsigned int len)
1752{
1753 const struct intel_bootup *evt = ptr;
1754
1755 if (len != sizeof(*evt))
1756 return;
1757
1758 if (test_and_clear_bit(BTUSB_BOOTING, &data->flags)) {
1759 smp_mb__after_atomic();
1760 wake_up_bit(&data->flags, BTUSB_BOOTING);
1761 }
1762}
1763
1764static void btusb_intel_secure_send_result(struct btusb_data *data,
1765 const void *ptr, unsigned int len)
1766{
1767 const struct intel_secure_send_result *evt = ptr;
1768
1769 if (len != sizeof(*evt))
1770 return;
1771
1772 if (evt->result)
1773 set_bit(BTUSB_FIRMWARE_FAILED, &data->flags);
1774
1775 if (test_and_clear_bit(BTUSB_DOWNLOADING, &data->flags) &&
1776 test_bit(BTUSB_FIRMWARE_LOADED, &data->flags)) {
1777 smp_mb__after_atomic();
1778 wake_up_bit(&data->flags, BTUSB_DOWNLOADING);
1779 }
1780}
1781
cda0dd78
MH		 1782static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb)
1783{
1784 struct btusb_data *data = hci_get_drvdata(hdev);
1785
1786 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
1787 struct hci_event_hdr *hdr = (void *)skb->data;
1788
ccd6da2a
MH		 1789 if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff &&
1790 hdr->plen > 0) {
1791 const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1;
1792 unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1;
1793
1794 switch (skb->data[2]) {
1795 case 0x02:
1796 /* When switching to the operational firmware
1797 * the device sends a vendor specific event
1798 * indicating that the bootup completed.
1799 */
1800 btusb_intel_bootup(data, ptr, len);
1801 break;
1802 case 0x06:
1803 /* When the firmware loading completes the
1804 * device sends out a vendor specific event
1805 * indicating the result of the firmware
1806 * loading.
1807 */
1808 btusb_intel_secure_send_result(data, ptr, len);
1809 break;
fad70972 1810 }
cda0dd78
MH		 1811 }
1812 }
1813
1814 return hci_recv_frame(hdev, skb);
1815}
1816
1817static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
1818{
1819 struct btusb_data *data = hci_get_drvdata(hdev);
1820 struct urb *urb;
1821
1822 BT_DBG("%s", hdev->name);
1823
1824 if (!test_bit(HCI_RUNNING, &hdev->flags))
1825 return -EBUSY;
1826
1827 switch (bt_cb(skb)->pkt_type) {
1828 case HCI_COMMAND_PKT:
1829 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
1830 struct hci_command_hdr *cmd = (void *)skb->data;
1831 __u16 opcode = le16_to_cpu(cmd->opcode);
1832
1833 /* When in bootloader mode and the command 0xfc09
1834 * is received, it needs to be send down the
1835 * bulk endpoint. So allocate a bulk URB instead.
1836 */
1837 if (opcode == 0xfc09)
1838 urb = alloc_bulk_urb(hdev, skb);
1839 else
1840 urb = alloc_ctrl_urb(hdev, skb);
1841
1842 /* When the 0xfc01 command is issued to boot into
1843 * the operational firmware, it will actually not
1844 * send a command complete event. To keep the flow
1845 * control working inject that event here.
1846 */
1847 if (opcode == 0xfc01)
1848 inject_cmd_complete(hdev, opcode);
1849 } else {
1850 urb = alloc_ctrl_urb(hdev, skb);
1851 }
1852 if (IS_ERR(urb))
1853 return PTR_ERR(urb);
1854
1855 hdev->stat.cmd_tx++;
1856 return submit_or_queue_tx_urb(hdev, urb);
1857
1858 case HCI_ACLDATA_PKT:
1859 urb = alloc_bulk_urb(hdev, skb);
1860 if (IS_ERR(urb))
1861 return PTR_ERR(urb);
1862
1863 hdev->stat.acl_tx++;
1864 return submit_or_queue_tx_urb(hdev, urb);
1865
1866 case HCI_SCODATA_PKT:
1867 if (hci_conn_num(hdev, SCO_LINK) < 1)
1868 return -ENODEV;
1869
1870 urb = alloc_isoc_urb(hdev, skb);
1871 if (IS_ERR(urb))
1872 return PTR_ERR(urb);
1873
1874 hdev->stat.sco_tx++;
1875 return submit_tx_urb(hdev, urb);
1876 }
1877
1878 return -EILSEQ;
1879}
1880
cda0dd78
MH		 1881static int btusb_setup_intel_new(struct hci_dev *hdev)
1882{
1883 static const u8 reset_param[] = { 0x00, 0x01, 0x00, 0x01,
1884 0x00, 0x08, 0x04, 0x00 };
1885 struct btusb_data *data = hci_get_drvdata(hdev);
1886 struct sk_buff *skb;
1887 struct intel_version *ver;
1888 struct intel_boot_params *params;
1889 const struct firmware *fw;
1890 const u8 *fw_ptr;
e66890a9 1891 u32 frag_len;
cda0dd78
MH		 1892 char fwname[64];
1893 ktime_t calltime, delta, rettime;
1894 unsigned long long duration;
1895 int err;
1896
1897 BT_DBG("%s", hdev->name);
1898
1899 calltime = ktime_get();
1900
1901 /* Read the Intel version information to determine if the device
1902 * is in bootloader mode or if it already has operational firmware
1903 * loaded.
1904 */
1905 skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT);
1906 if (IS_ERR(skb)) {
1907 BT_ERR("%s: Reading Intel version information failed (%ld)",
1908 hdev->name, PTR_ERR(skb));
1909 return PTR_ERR(skb);
1910 }
1911
1912 if (skb->len != sizeof(*ver)) {
1913 BT_ERR("%s: Intel version event size mismatch", hdev->name);
1914 kfree_skb(skb);
1915 return -EILSEQ;
1916 }
1917
1918 ver = (struct intel_version *)skb->data;
cda0dd78
MH		 1919
1920 /* The hardware platform number has a fixed value of 0x37 and
1921 * for now only accept this single value.
1922 */
1923 if (ver->hw_platform != 0x37) {
1924 BT_ERR("%s: Unsupported Intel hardware platform (%u)",
1925 hdev->name, ver->hw_platform);
1926 kfree_skb(skb);
1927 return -EINVAL;
1928 }
1929
1930 /* At the moment only the hardware variant iBT 3.0 (LnP/SfP) is
1931 * supported by this firmware loading method. This check has been
1932 * put in place to ensure correct forward compatibility options
1933 * when newer hardware variants come along.
1934 */
1935 if (ver->hw_variant != 0x0b) {
1936 BT_ERR("%s: Unsupported Intel hardware variant (%u)",
1937 hdev->name, ver->hw_variant);
1938 kfree_skb(skb);
1939 return -EINVAL;
1940 }
1941
7feb99e1 1942 btintel_version_info(hdev, ver);
cda0dd78
MH		 1943
1944 /* The firmware variant determines if the device is in bootloader
1945 * mode or is running operational firmware. The value 0x06 identifies
1946 * the bootloader and the value 0x23 identifies the operational
1947 * firmware.
1948 *
1949 * When the operational firmware is already present, then only
1950 * the check for valid Bluetooth device address is needed. This
1951 * determines if the device will be added as configured or
1952 * unconfigured controller.
1953 *
1954 * It is not possible to use the Secure Boot Parameters in this
1955 * case since that command is only available in bootloader mode.
1956 */
1957 if (ver->fw_variant == 0x23) {
1958 kfree_skb(skb);
1959 clear_bit(BTUSB_BOOTLOADER, &data->flags);
4185a0f5 1960 btintel_check_bdaddr(hdev);
cda0dd78
MH		 1961 return 0;
1962 }
1963
1964 /* If the device is not in bootloader mode, then the only possible
1965 * choice is to return an error and abort the device initialization.
1966 */
1967 if (ver->fw_variant != 0x06) {
1968 BT_ERR("%s: Unsupported Intel firmware variant (%u)",
1969 hdev->name, ver->fw_variant);
1970 kfree_skb(skb);
1971 return -ENODEV;
1972 }
1973
1974 kfree_skb(skb);
1975
1976 /* Read the secure boot parameters to identify the operating
1977 * details of the bootloader.
1978 */
1979 skb = __hci_cmd_sync(hdev, 0xfc0d, 0, NULL, HCI_INIT_TIMEOUT);
1980 if (IS_ERR(skb)) {
1981 BT_ERR("%s: Reading Intel boot parameters failed (%ld)",
1982 hdev->name, PTR_ERR(skb));
1983 return PTR_ERR(skb);
1984 }
1985
1986 if (skb->len != sizeof(*params)) {
1987 BT_ERR("%s: Intel boot parameters size mismatch", hdev->name);
1988 kfree_skb(skb);
1989 return -EILSEQ;
1990 }
1991
1992 params = (struct intel_boot_params *)skb->data;
cda0dd78
MH		 1993
1994 BT_INFO("%s: Device revision is %u", hdev->name,
1995 le16_to_cpu(params->dev_revid));
1996
1997 BT_INFO("%s: Secure boot is %s", hdev->name,
1998 params->secure_boot ? "enabled" : "disabled");
1999
2000 BT_INFO("%s: Minimum firmware build %u week %u %u", hdev->name,
2001 params->min_fw_build_nn, params->min_fw_build_cw,
2002 2000 + params->min_fw_build_yy);
2003
2004 /* It is required that every single firmware fragment is acknowledged
2005 * with a command complete event. If the boot parameters indicate
2006 * that this bootloader does not send them, then abort the setup.
2007 */
2008 if (params->limited_cce != 0x00) {
2009 BT_ERR("%s: Unsupported Intel firmware loading method (%u)",
2010 hdev->name, params->limited_cce);
2011 kfree_skb(skb);
2012 return -EINVAL;
2013 }
2014
2015 /* If the OTP has no valid Bluetooth device address, then there will
2016 * also be no valid address for the operational firmware.
2017 */
2018 if (!bacmp(&params->otp_bdaddr, BDADDR_ANY)) {
2019 BT_INFO("%s: No device address configured", hdev->name);
2020 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
2021 }
2022
2023 /* With this Intel bootloader only the hardware variant and device
2024 * revision information are used to select the right firmware.
2025 *
2026 * Currently this bootloader support is limited to hardware variant
2027 * iBT 3.0 (LnP/SfP) which is identified by the value 11 (0x0b).
2028 */
2029 snprintf(fwname, sizeof(fwname), "intel/ibt-11-%u.sfi",
2030 le16_to_cpu(params->dev_revid));
2031
2032 err = request_firmware(&fw, fwname, &hdev->dev);
2033 if (err < 0) {
2034 BT_ERR("%s: Failed to load Intel firmware file (%d)",
2035 hdev->name, err);
2036 kfree_skb(skb);
2037 return err;
2038 }
2039
2040 BT_INFO("%s: Found device firmware: %s", hdev->name, fwname);
2041
52cc9168
THJA		 2042 /* Save the DDC file name for later use to apply once the firmware
2043 * downloading is done.
2044 */
2045 snprintf(fwname, sizeof(fwname), "intel/ibt-11-%u.ddc",
2046 le16_to_cpu(params->dev_revid));
2047
cda0dd78
MH		 2048 kfree_skb(skb);
2049
2050 if (fw->size < 644) {
2051 BT_ERR("%s: Invalid size of firmware file (%zu)",
2052 hdev->name, fw->size);
2053 err = -EBADF;
2054 goto done;
2055 }
2056
2057 set_bit(BTUSB_DOWNLOADING, &data->flags);
2058
2059 /* Start the firmware download transaction with the Init fragment
2060 * represented by the 128 bytes of CSS header.
2061 */
09df123d 2062 err = btintel_secure_send(hdev, 0x00, 128, fw->data);
cda0dd78
MH		 2063 if (err < 0) {
2064 BT_ERR("%s: Failed to send firmware header (%d)",
2065 hdev->name, err);
2066 goto done;
2067 }
2068
2069 /* Send the 256 bytes of public key information from the firmware
2070 * as the PKey fragment.
2071 */
09df123d 2072 err = btintel_secure_send(hdev, 0x03, 256, fw->data + 128);
cda0dd78
MH		 2073 if (err < 0) {
2074 BT_ERR("%s: Failed to send firmware public key (%d)",
2075 hdev->name, err);
2076 goto done;
2077 }
2078
2079 /* Send the 256 bytes of signature information from the firmware
2080 * as the Sign fragment.
2081 */
09df123d 2082 err = btintel_secure_send(hdev, 0x02, 256, fw->data + 388);
cda0dd78
MH		 2083 if (err < 0) {
2084 BT_ERR("%s: Failed to send firmware signature (%d)",
2085 hdev->name, err);
2086 goto done;
2087 }
2088
2089 fw_ptr = fw->data + 644;
e66890a9 2090 frag_len = 0;
cda0dd78
MH		 2091
2092 while (fw_ptr - fw->data < fw->size) {
e66890a9 2093 struct hci_command_hdr *cmd = (void *)(fw_ptr + frag_len);
cda0dd78 2094
e66890a9 2095 frag_len += sizeof(*cmd) + cmd->plen;
cda0dd78 2096
e66890a9
MH		 2097 /* The paramter length of the secure send command requires
2098 * a 4 byte alignment. It happens so that the firmware file
2099 * contains proper Intel_NOP commands to align the fragments
2100 * as needed.
2101 *
2102 * Send set of commands with 4 byte alignment from the
2103 * firmware data buffer as a single Data fragement.
cda0dd78 2104 */
e66890a9 2105 if (!(frag_len % 4)) {
09df123d 2106 err = btintel_secure_send(hdev, 0x01, frag_len, fw_ptr);
e66890a9
MH		 2107 if (err < 0) {
2108 BT_ERR("%s: Failed to send firmware data (%d)",
2109 hdev->name, err);
2110 goto done;
2111 }
cda0dd78 2112
e66890a9
MH		 2113 fw_ptr += frag_len;
2114 frag_len = 0;
2115 }
cda0dd78
MH		 2116 }
2117
ce6bb929
MH		 2118 set_bit(BTUSB_FIRMWARE_LOADED, &data->flags);
2119
a087a98e
JH		 2120 BT_INFO("%s: Waiting for firmware download to complete", hdev->name);
2121
cda0dd78
MH		 2122 /* Before switching the device into operational mode and with that
2123 * booting the loaded firmware, wait for the bootloader notification
2124 * that all fragments have been successfully received.
2125 *
a087a98e
JH		 2126 * When the event processing receives the notification, then the
2127 * BTUSB_DOWNLOADING flag will be cleared.
2128 *
2129 * The firmware loading should not take longer than 5 seconds
2130 * and thus just timeout if that happens and fail the setup
2131 * of this device.
cda0dd78 2132 */
129a7693
JH		 2133 err = wait_on_bit_timeout(&data->flags, BTUSB_DOWNLOADING,
2134 TASK_INTERRUPTIBLE,
2135 msecs_to_jiffies(5000));
a087a98e
JH		 2136 if (err == 1) {
2137 BT_ERR("%s: Firmware loading interrupted", hdev->name);
2138 err = -EINTR;
2139 goto done;
2140 }
cda0dd78 2141
a087a98e
JH		 2142 if (err) {
2143 BT_ERR("%s: Firmware loading timeout", hdev->name);
2144 err = -ETIMEDOUT;
2145 goto done;
cda0dd78
MH		 2146 }
2147
2148 if (test_bit(BTUSB_FIRMWARE_FAILED, &data->flags)) {
2149 BT_ERR("%s: Firmware loading failed", hdev->name);
2150 err = -ENOEXEC;
2151 goto done;
2152 }
2153
2154 rettime = ktime_get();
2155 delta = ktime_sub(rettime, calltime);
2156 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2157
2158 BT_INFO("%s: Firmware loaded in %llu usecs", hdev->name, duration);
2159
2160done:
2161 release_firmware(fw);
2162
2163 if (err < 0)
2164 return err;
2165
2166 calltime = ktime_get();
2167
2168 set_bit(BTUSB_BOOTING, &data->flags);
2169
2170 skb = __hci_cmd_sync(hdev, 0xfc01, sizeof(reset_param), reset_param,
2171 HCI_INIT_TIMEOUT);
2172 if (IS_ERR(skb))
2173 return PTR_ERR(skb);
2174
2175 kfree_skb(skb);
2176
2177 /* The bootloader will not indicate when the device is ready. This
2178 * is done by the operational firmware sending bootup notification.
fad70972
JH		 2179 *
2180 * Booting into operational firmware should not take longer than
2181 * 1 second. However if that happens, then just fail the setup
2182 * since something went wrong.
cda0dd78 2183 */
fad70972 2184 BT_INFO("%s: Waiting for device to boot", hdev->name);
cda0dd78 2185
129a7693
JH		 2186 err = wait_on_bit_timeout(&data->flags, BTUSB_BOOTING,
2187 TASK_INTERRUPTIBLE,
2188 msecs_to_jiffies(1000));
cda0dd78 2189
fad70972
JH		 2190 if (err == 1) {
2191 BT_ERR("%s: Device boot interrupted", hdev->name);
2192 return -EINTR;
2193 }
cda0dd78 2194
fad70972
JH		 2195 if (err) {
2196 BT_ERR("%s: Device boot timeout", hdev->name);
2197 return -ETIMEDOUT;
cda0dd78
MH		 2198 }
2199
2200 rettime = ktime_get();
2201 delta = ktime_sub(rettime, calltime);
2202 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2203
2204 BT_INFO("%s: Device booted in %llu usecs", hdev->name, duration);
2205
2206 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2207
52cc9168
THJA		 2208 /* Once the device is running in operational mode, it needs to apply
2209 * the device configuration (DDC) parameters.
2210 *
2211 * The device can work without DDC parameters, so even if it fails
2212 * to load the file, no need to fail the setup.
2213 */
2214 err = request_firmware_direct(&fw, fwname, &hdev->dev);
2215 if (err < 0)
2216 return 0;
2217
2218 BT_INFO("%s: Found Intel DDC parameters: %s", hdev->name, fwname);
2219
2220 fw_ptr = fw->data;
2221
2222 /* DDC file contains one or more DDC structure which has
2223 * Length (1 byte), DDC ID (2 bytes), and DDC value (Length - 2).
2224 */
2225 while (fw->size > fw_ptr - fw->data) {
2226 u8 cmd_plen = fw_ptr[0] + sizeof(u8);
2227
2228 skb = __hci_cmd_sync(hdev, 0xfc8b, cmd_plen, fw_ptr,
2229 HCI_INIT_TIMEOUT);
2230 if (IS_ERR(skb)) {
2231 BT_ERR("%s: Failed to send Intel_Write_DDC (%ld)",
2232 hdev->name, PTR_ERR(skb));
2233 release_firmware(fw);
2234 return PTR_ERR(skb);
2235 }
2236
2237 fw_ptr += cmd_plen;
2238 kfree_skb(skb);
2239 }
2240
2241 release_firmware(fw);
2242
2243 BT_INFO("%s: Applying Intel DDC parameters completed", hdev->name);
2244
cda0dd78
MH		 2245 return 0;
2246}
2247
bfbd45e9
THJA		 2248static int btusb_shutdown_intel(struct hci_dev *hdev)
2249{
2250 struct sk_buff *skb;
2251 long ret;
2252
2253 /* Some platforms have an issue with BT LED when the interface is
2254 * down or BT radio is turned off, which takes 5 seconds to BT LED
2255 * goes off. This command turns off the BT LED immediately.
2256 */
2257 skb = __hci_cmd_sync(hdev, 0xfc3f, 0, NULL, HCI_INIT_TIMEOUT);
2258 if (IS_ERR(skb)) {
2259 ret = PTR_ERR(skb);
2260 BT_ERR("%s: turning off Intel device LED failed (%ld)",
2261 hdev->name, ret);
2262 return ret;
2263 }
2264 kfree_skb(skb);
2265
2266 return 0;
2267}
2268
ae8df494
AK		 2269static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
2270 const bdaddr_t *bdaddr)
2271{
2272 struct sk_buff *skb;
2273 u8 buf[8];
2274 long ret;
2275
2276 buf[0] = 0xfe;
2277 buf[1] = sizeof(bdaddr_t);
2278 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
2279
2280 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2281 if (IS_ERR(skb)) {
2282 ret = PTR_ERR(skb);
2283 BT_ERR("%s: changing Marvell device address failed (%ld)",
2284 hdev->name, ret);
2285 return ret;
2286 }
2287 kfree_skb(skb);
2288
2289 return 0;
2290}
2291
5859223e
TK		 2292static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
2293 const bdaddr_t *bdaddr)
2294{
2295 struct sk_buff *skb;
2296 u8 buf[10];
2297 long ret;
2298
2299 buf[0] = 0x01;
2300 buf[1] = 0x01;
2301 buf[2] = 0x00;
2302 buf[3] = sizeof(bdaddr_t);
2303 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
2304
2305 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2306 if (IS_ERR(skb)) {
2307 ret = PTR_ERR(skb);
2308 BT_ERR("%s: Change address command failed (%ld)",
2309 hdev->name, ret);
2310 return ret;
2311 }
2312 kfree_skb(skb);
2313
2314 return 0;
2315}
2316
3267c884
KBYT		 2317#define QCA_DFU_PACKET_LEN 4096
2318
2319#define QCA_GET_TARGET_VERSION 0x09
2320#define QCA_CHECK_STATUS 0x05
2321#define QCA_DFU_DOWNLOAD 0x01
2322
2323#define QCA_SYSCFG_UPDATED 0x40
2324#define QCA_PATCH_UPDATED 0x80
2325#define QCA_DFU_TIMEOUT 3000
2326
2327struct qca_version {
2328 __le32 rom_version;
2329 __le32 patch_version;
2330 __le32 ram_version;
2331 __le32 ref_clock;
2332 __u8 reserved[4];
2333} __packed;
2334
2335struct qca_rampatch_version {
2336 __le16 rom_version;
2337 __le16 patch_version;
2338} __packed;
2339
2340struct qca_device_info {
bf906b3d
KBYT		 2341 u32 rom_version;
2342 u8 rampatch_hdr; /* length of header in rampatch */
2343 u8 nvm_hdr; /* length of header in NVM */
2344 u8 ver_offset; /* offset of version structure in rampatch */
3267c884
KBYT		 2345};
2346
2347static const struct qca_device_info qca_devices_table[] = {
2348 { 0x00000100, 20, 4, 10 }, /* Rome 1.0 */
2349 { 0x00000101, 20, 4, 10 }, /* Rome 1.1 */
7f6e6363 2350 { 0x00000200, 28, 4, 18 }, /* Rome 2.0 */
3267c884
KBYT		 2351 { 0x00000201, 28, 4, 18 }, /* Rome 2.1 */
2352 { 0x00000300, 28, 4, 18 }, /* Rome 3.0 */
2353 { 0x00000302, 28, 4, 18 }, /* Rome 3.2 */
2354};
2355
2356static int btusb_qca_send_vendor_req(struct hci_dev *hdev, u8 request,
2357 void *data, u16 size)
2358{
2359 struct btusb_data *btdata = hci_get_drvdata(hdev);
2360 struct usb_device *udev = btdata->udev;
2361 int pipe, err;
2362 u8 *buf;
2363
2364 buf = kmalloc(size, GFP_KERNEL);
2365 if (!buf)
2366 return -ENOMEM;
2367
2368 /* Found some of USB hosts have IOT issues with ours so that we should
2369 * not wait until HCI layer is ready.
2370 */
2371 pipe = usb_rcvctrlpipe(udev, 0);
2372 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
2373 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
2374 if (err < 0) {
2375 BT_ERR("%s: Failed to access otp area (%d)", hdev->name, err);
2376 goto done;
2377 }
2378
2379 memcpy(data, buf, size);
2380
2381done:
2382 kfree(buf);
2383
2384 return err;
2385}
2386
2387static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
2388 const struct firmware *firmware,
2389 size_t hdr_size)
2390{
2391 struct btusb_data *btdata = hci_get_drvdata(hdev);
2392 struct usb_device *udev = btdata->udev;
2393 size_t count, size, sent = 0;
2394 int pipe, len, err;
2395 u8 *buf;
2396
2397 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
2398 if (!buf)
2399 return -ENOMEM;
2400
2401 count = firmware->size;
2402
2403 size = min_t(size_t, count, hdr_size);
2404 memcpy(buf, firmware->data, size);
2405
2406 /* USB patches should go down to controller through USB path
2407 * because binary format fits to go down through USB channel.
2408 * USB control path is for patching headers and USB bulk is for
2409 * patch body.
2410 */
2411 pipe = usb_sndctrlpipe(udev, 0);
2412 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
2413 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
2414 if (err < 0) {
2415 BT_ERR("%s: Failed to send headers (%d)", hdev->name, err);
2416 goto done;
2417 }
2418
2419 sent += size;
2420 count -= size;
2421
2422 while (count) {
2423 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
2424
2425 memcpy(buf, firmware->data + sent, size);
2426
2427 pipe = usb_sndbulkpipe(udev, 0x02);
2428 err = usb_bulk_msg(udev, pipe, buf, size, &len,
2429 QCA_DFU_TIMEOUT);
2430 if (err < 0) {
2431 BT_ERR("%s: Failed to send body at %zd of %zd (%d)",
2432 hdev->name, sent, firmware->size, err);
2433 break;
2434 }
2435
2436 if (size != len) {
2437 BT_ERR("%s: Failed to get bulk buffer", hdev->name);
2438 err = -EILSEQ;
2439 break;
2440 }
2441
2442 sent += size;
2443 count -= size;
2444 }
2445
2446done:
2447 kfree(buf);
2448 return err;
2449}
2450
2451static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
2452 struct qca_version *ver,
2453 const struct qca_device_info *info)
2454{
2455 struct qca_rampatch_version *rver;
2456 const struct firmware *fw;
bf906b3d
KBYT		 2457 u32 ver_rom, ver_patch;
2458 u16 rver_rom, rver_patch;
3267c884
KBYT		 2459 char fwname[64];
2460 int err;
2461
bf906b3d
KBYT		 2462 ver_rom = le32_to_cpu(ver->rom_version);
2463 ver_patch = le32_to_cpu(ver->patch_version);
2464
2465 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom);
3267c884
KBYT		 2466
2467 err = request_firmware(&fw, fwname, &hdev->dev);
2468 if (err) {
2469 BT_ERR("%s: failed to request rampatch file: %s (%d)",
2470 hdev->name, fwname, err);
2471 return err;
2472 }
2473
2474 BT_INFO("%s: using rampatch file: %s", hdev->name, fwname);
bf906b3d 2475
3267c884 2476 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
bf906b3d
KBYT		 2477 rver_rom = le16_to_cpu(rver->rom_version);
2478 rver_patch = le16_to_cpu(rver->patch_version);
2479
3267c884 2480 BT_INFO("%s: QCA: patch rome 0x%x build 0x%x, firmware rome 0x%x "
bf906b3d
KBYT		 2481 "build 0x%x", hdev->name, rver_rom, rver_patch, ver_rom,
2482 ver_patch);
3267c884 2483
bf906b3d 2484 if (rver_rom != ver_rom || rver_patch <= ver_patch) {
3267c884
KBYT		 2485 BT_ERR("%s: rampatch file version did not match with firmware",
2486 hdev->name);
2487 err = -EINVAL;
2488 goto done;
2489 }
2490
2491 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
2492
2493done:
2494 release_firmware(fw);
2495
2496 return err;
2497}
2498
2499static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
2500 struct qca_version *ver,
2501 const struct qca_device_info *info)
2502{
2503 const struct firmware *fw;
2504 char fwname[64];
2505 int err;
2506
2507 snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin",
2508 le32_to_cpu(ver->rom_version));
2509
2510 err = request_firmware(&fw, fwname, &hdev->dev);
2511 if (err) {
2512 BT_ERR("%s: failed to request NVM file: %s (%d)",
2513 hdev->name, fwname, err);
2514 return err;
2515 }
2516
2517 BT_INFO("%s: using NVM file: %s", hdev->name, fwname);
2518
2519 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
2520
2521 release_firmware(fw);
2522
2523 return err;
2524}
2525
2526static int btusb_setup_qca(struct hci_dev *hdev)
2527{
2528 const struct qca_device_info *info = NULL;
2529 struct qca_version ver;
bf906b3d 2530 u32 ver_rom;
3267c884
KBYT		 2531 u8 status;
2532 int i, err;
2533
2534 err = btusb_qca_send_vendor_req(hdev, QCA_GET_TARGET_VERSION, &ver,
eb50042f 2535 sizeof(ver));
3267c884
KBYT		 2536 if (err < 0)
2537 return err;
2538
bf906b3d 2539 ver_rom = le32_to_cpu(ver.rom_version);
3267c884 2540 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
bf906b3d 2541 if (ver_rom == qca_devices_table[i].rom_version)
3267c884
KBYT		 2542 info = &qca_devices_table[i];
2543 }
2544 if (!info) {
2545 BT_ERR("%s: don't support firmware rome 0x%x", hdev->name,
bf906b3d 2546 ver_rom);
3267c884
KBYT		 2547 return -ENODEV;
2548 }
2549
2550 err = btusb_qca_send_vendor_req(hdev, QCA_CHECK_STATUS, &status,
2551 sizeof(status));
2552 if (err < 0)
2553 return err;
2554
2555 if (!(status & QCA_PATCH_UPDATED)) {
2556 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
2557 if (err < 0)
2558 return err;
2559 }
2560
2561 if (!(status & QCA_SYSCFG_UPDATED)) {
2562 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
2563 if (err < 0)
2564 return err;
2565 }
2566
2567 return 0;
2568}
2569
5e23b923 2570static int btusb_probe(struct usb_interface *intf,
89e7533d 2571 const struct usb_device_id *id)
5e23b923
MH		 2572{
2573 struct usb_endpoint_descriptor *ep_desc;
2574 struct btusb_data *data;
2575 struct hci_dev *hdev;
2576 int i, err;
2577
2578 BT_DBG("intf %p id %p", intf, id);
2579
cfeb4145 2580 /* interface numbers are hardcoded in the spec */
5e23b923
MH		 2581 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
2582 return -ENODEV;
2583
2584 if (!id->driver_info) {
2585 const struct usb_device_id *match;
89e7533d 2586
5e23b923
MH		 2587 match = usb_match_id(intf, blacklist_table);
2588 if (match)
2589 id = match;
2590 }
2591
cfeb4145
MH		 2592 if (id->driver_info == BTUSB_IGNORE)
2593 return -ENODEV;
2594
2d25f8b4
SL		 2595 if (id->driver_info & BTUSB_ATH3012) {
2596 struct usb_device *udev = interface_to_usbdev(intf);
2597
2598 /* Old firmware would otherwise let ath3k driver load
2599 * patch and sysconfig files */
2600 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
2601 return -ENODEV;
2602 }
2603
98921dbd 2604 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
5e23b923
MH		 2605 if (!data)
2606 return -ENOMEM;
2607
2608 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2609 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2610
2611 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
2612 data->intr_ep = ep_desc;
2613 continue;
2614 }
2615
2616 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
2617 data->bulk_tx_ep = ep_desc;
2618 continue;
2619 }
2620
2621 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
2622 data->bulk_rx_ep = ep_desc;
2623 continue;
2624 }
2625 }
2626
98921dbd 2627 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
5e23b923 2628 return -ENODEV;
5e23b923 2629
893ba544
MH		 2630 if (id->driver_info & BTUSB_AMP) {
2631 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
2632 data->cmdreq = 0x2b;
2633 } else {
2634 data->cmdreq_type = USB_TYPE_CLASS;
2635 data->cmdreq = 0x00;
2636 }
7a9d4020 2637
5e23b923 2638 data->udev = interface_to_usbdev(intf);
5fbcd260 2639 data->intf = intf;
5e23b923 2640
5e23b923 2641 INIT_WORK(&data->work, btusb_work);
7bee549e 2642 INIT_WORK(&data->waker, btusb_waker);
803b5836
MH		 2643 init_usb_anchor(&data->deferred);
2644 init_usb_anchor(&data->tx_anchor);
7bee549e 2645 spin_lock_init(&data->txlock);
5e23b923 2646
5e23b923
MH		 2647 init_usb_anchor(&data->intr_anchor);
2648 init_usb_anchor(&data->bulk_anchor);
9bfa35fe 2649 init_usb_anchor(&data->isoc_anchor);
803b5836 2650 spin_lock_init(&data->rxlock);
5e23b923 2651
cda0dd78
MH		 2652 if (id->driver_info & BTUSB_INTEL_NEW) {
2653 data->recv_event = btusb_recv_event_intel;
2654 data->recv_bulk = btusb_recv_bulk_intel;
2655 set_bit(BTUSB_BOOTLOADER, &data->flags);
2656 } else {
2657 data->recv_event = hci_recv_frame;
2658 data->recv_bulk = btusb_recv_bulk;
2659 }
2cbd3f5c 2660
5e23b923 2661 hdev = hci_alloc_dev();
98921dbd 2662 if (!hdev)
5e23b923 2663 return -ENOMEM;
5e23b923 2664
c13854ce 2665 hdev->bus = HCI_USB;
155961e8 2666 hci_set_drvdata(hdev, data);
5e23b923 2667
893ba544
MH		 2668 if (id->driver_info & BTUSB_AMP)
2669 hdev->dev_type = HCI_AMP;
2670 else
2671 hdev->dev_type = HCI_BREDR;
2672
5e23b923
MH		 2673 data->hdev = hdev;
2674
2675 SET_HCIDEV_DEV(hdev, &intf->dev);
2676
9f8f962c
MH		 2677 hdev->open = btusb_open;
2678 hdev->close = btusb_close;
2679 hdev->flush = btusb_flush;
2680 hdev->send = btusb_send_frame;
2681 hdev->notify = btusb_notify;
2682
2683 if (id->driver_info & BTUSB_BCM92035)
2684 hdev->setup = btusb_setup_bcm92035;
5e23b923 2685
c2bfb100 2686#ifdef CONFIG_BT_HCIBTUSB_BCM
abbaf50e 2687 if (id->driver_info & BTUSB_BCM_PATCHRAM) {
c2bfb100 2688 hdev->setup = btbcm_setup_patchram;
1df1f591 2689 hdev->set_bdaddr = btbcm_set_bdaddr;
abbaf50e 2690 }
10d4c673 2691
941521e2 2692 if (id->driver_info & BTUSB_BCM_APPLE)
c2bfb100 2693 hdev->setup = btbcm_setup_apple;
c2bfb100 2694#endif
17b2772b 2695
cb8d6597 2696 if (id->driver_info & BTUSB_INTEL) {
dffd30ee 2697 hdev->setup = btusb_setup_intel;
bfbd45e9 2698 hdev->shutdown = btusb_shutdown_intel;
4185a0f5 2699 hdev->set_bdaddr = btintel_set_bdaddr;
c33fb9b4 2700 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
c1154842 2701 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
cb8d6597 2702 }
dffd30ee 2703
cda0dd78
MH		 2704 if (id->driver_info & BTUSB_INTEL_NEW) {
2705 hdev->send = btusb_send_frame_intel;
2706 hdev->setup = btusb_setup_intel_new;
eeb6abe9 2707 hdev->hw_error = btintel_hw_error;
4185a0f5 2708 hdev->set_bdaddr = btintel_set_bdaddr;
b970c5ba 2709 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
cda0dd78
MH		 2710 }
2711
ae8df494
AK		 2712 if (id->driver_info & BTUSB_MARVELL)
2713 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
2714
661cf88a
MH		 2715 if (id->driver_info & BTUSB_SWAVE) {
2716 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
d57dbe77 2717 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
661cf88a 2718 }
d57dbe77 2719
40df783d
MH		 2720 if (id->driver_info & BTUSB_INTEL_BOOT)
2721 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
2722
79f0c87d 2723 if (id->driver_info & BTUSB_ATH3012) {
5859223e 2724 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
3d50d51a 2725 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
79f0c87d
JP		 2726 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
2727 }
5859223e 2728
3267c884
KBYT		 2729 if (id->driver_info & BTUSB_QCA_ROME) {
2730 data->setup_on_usb = btusb_setup_qca;
2731 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
2732 }
2733
db33c77d 2734#ifdef CONFIG_BT_HCIBTUSB_RTL
04b8c814 2735 if (id->driver_info & BTUSB_REALTEK) {
db33c77d 2736 hdev->setup = btrtl_setup_realtek;
04b8c814
DD		 2737
2738 /* Realtek devices lose their updated firmware over suspend,
2739 * but the USB hub doesn't notice any status change.
2740 * Explicitly request a device reset on resume.
2741 */
2742 set_bit(BTUSB_RESET_RESUME, &data->flags);
2743 }
db33c77d 2744#endif
a2698a9b 2745
893ba544
MH		 2746 if (id->driver_info & BTUSB_AMP) {
2747 /* AMP controllers do not support SCO packets */
2748 data->isoc = NULL;
2749 } else {
2750 /* Interface numbers are hardcoded in the specification */
2751 data->isoc = usb_ifnum_to_if(data->udev, 1);
2752 }
9bfa35fe 2753
7a9d4020 2754 if (!reset)
a6c511c6 2755 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
cfeb4145
MH		 2756
2757 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
2758 if (!disable_scofix)
2759 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
2760 }
2761
9bfa35fe
MH		 2762 if (id->driver_info & BTUSB_BROKEN_ISOC)
2763 data->isoc = NULL;
2764
7a9d4020
MH		 2765 if (id->driver_info & BTUSB_DIGIANSWER) {
2766 data->cmdreq_type = USB_TYPE_VENDOR;
a6c511c6 2767 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
7a9d4020
MH		 2768 }
2769
2770 if (id->driver_info & BTUSB_CSR) {
2771 struct usb_device *udev = data->udev;
81cac64b 2772 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
7a9d4020
MH		 2773
2774 /* Old firmware would otherwise execute USB reset */
81cac64b 2775 if (bcdDevice < 0x117)
a6c511c6 2776 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
81cac64b
MH		 2777
2778 /* Fake CSR devices with broken commands */
2779 if (bcdDevice <= 0x100)
2780 hdev->setup = btusb_setup_csr;
49c989a0
JP		 2781
2782 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
7a9d4020
MH		 2783 }
2784
cfeb4145 2785 if (id->driver_info & BTUSB_SNIFFER) {
9bfa35fe 2786 struct usb_device *udev = data->udev;
cfeb4145 2787
7a9d4020 2788 /* New sniffer firmware has crippled HCI interface */
cfeb4145
MH		 2789 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
2790 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
2791 }
2792
3a5ef20c
MH		 2793 if (id->driver_info & BTUSB_INTEL_BOOT) {
2794 /* A bug in the bootloader causes that interrupt interface is
2795 * only enabled after receiving SetInterface(0, AltSetting=0).
2796 */
2797 err = usb_set_interface(data->udev, 0, 0);
2798 if (err < 0) {
2799 BT_ERR("failed to set interface 0, alt 0 %d", err);
2800 hci_free_dev(hdev);
2801 return err;
2802 }
2803 }
2804
9bfa35fe
MH		 2805 if (data->isoc) {
2806 err = usb_driver_claim_interface(&btusb_driver,
89e7533d 2807 data->isoc, data);
9bfa35fe
MH		 2808 if (err < 0) {
2809 hci_free_dev(hdev);
9bfa35fe
MH		 2810 return err;
2811 }
2812 }
2813
5e23b923
MH		 2814 err = hci_register_dev(hdev);
2815 if (err < 0) {
2816 hci_free_dev(hdev);
5e23b923
MH		 2817 return err;
2818 }
2819
2820 usb_set_intfdata(intf, data);
2821
2822 return 0;
2823}
2824
2825static void btusb_disconnect(struct usb_interface *intf)
2826{
2827 struct btusb_data *data = usb_get_intfdata(intf);
2828 struct hci_dev *hdev;
2829
2830 BT_DBG("intf %p", intf);
2831
2832 if (!data)
2833 return;
2834
2835 hdev = data->hdev;
5fbcd260
MH		 2836 usb_set_intfdata(data->intf, NULL);
2837
2838 if (data->isoc)
2839 usb_set_intfdata(data->isoc, NULL);
5e23b923
MH		 2840
2841 hci_unregister_dev(hdev);
2842
5fbcd260
MH		 2843 if (intf == data->isoc)
2844 usb_driver_release_interface(&btusb_driver, data->intf);
2845 else if (data->isoc)
2846 usb_driver_release_interface(&btusb_driver, data->isoc);
2847
5e23b923
MH		 2848 hci_free_dev(hdev);
2849}
2850
7bee549e 2851#ifdef CONFIG_PM
6a88adf2
MH		 2852static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
2853{
2854 struct btusb_data *data = usb_get_intfdata(intf);
2855
2856 BT_DBG("intf %p", intf);
2857
2858 if (data->suspend_count++)
2859 return 0;
2860
7bee549e 2861 spin_lock_irq(&data->txlock);
5b1b0b81 2862 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
7bee549e
ON		 2863 set_bit(BTUSB_SUSPENDING, &data->flags);
2864 spin_unlock_irq(&data->txlock);
2865 } else {
2866 spin_unlock_irq(&data->txlock);
2867 data->suspend_count--;
2868 return -EBUSY;
2869 }
2870
6a88adf2
MH		 2871 cancel_work_sync(&data->work);
2872
7bee549e 2873 btusb_stop_traffic(data);
6a88adf2
MH		 2874 usb_kill_anchored_urbs(&data->tx_anchor);
2875
04b8c814
DD		 2876 /* Optionally request a device reset on resume, but only when
2877 * wakeups are disabled. If wakeups are enabled we assume the
2878 * device will stay powered up throughout suspend.
2879 */
2880 if (test_bit(BTUSB_RESET_RESUME, &data->flags) &&
2881 !device_may_wakeup(&data->udev->dev))
2882 data->udev->reset_resume = 1;
2883
6a88adf2
MH		 2884 return 0;
2885}
2886
7bee549e
ON		 2887static void play_deferred(struct btusb_data *data)
2888{
2889 struct urb *urb;
2890 int err;
2891
2892 while ((urb = usb_get_from_anchor(&data->deferred))) {
2893 err = usb_submit_urb(urb, GFP_ATOMIC);
2894 if (err < 0)
2895 break;
2896
2897 data->tx_in_flight++;
2898 }
2899 usb_scuttle_anchored_urbs(&data->deferred);
2900}
2901
6a88adf2
MH		 2902static int btusb_resume(struct usb_interface *intf)
2903{
2904 struct btusb_data *data = usb_get_intfdata(intf);
2905 struct hci_dev *hdev = data->hdev;
7bee549e 2906 int err = 0;
6a88adf2
MH		 2907
2908 BT_DBG("intf %p", intf);
2909
2910 if (--data->suspend_count)
2911 return 0;
2912
2913 if (!test_bit(HCI_RUNNING, &hdev->flags))
7bee549e 2914 goto done;
6a88adf2
MH		 2915
2916 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
2917 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
2918 if (err < 0) {
2919 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
7bee549e 2920 goto failed;
6a88adf2
MH		 2921 }
2922 }
2923
2924 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
43c2e57f
MH		 2925 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
2926 if (err < 0) {
6a88adf2 2927 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
7bee549e
ON		 2928 goto failed;
2929 }
2930
2931 btusb_submit_bulk_urb(hdev, GFP_NOIO);
6a88adf2
MH		 2932 }
2933
2934 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2935 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
2936 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2937 else
2938 btusb_submit_isoc_urb(hdev, GFP_NOIO);
2939 }
2940
7bee549e
ON		 2941 spin_lock_irq(&data->txlock);
2942 play_deferred(data);
2943 clear_bit(BTUSB_SUSPENDING, &data->flags);
2944 spin_unlock_irq(&data->txlock);
2945 schedule_work(&data->work);
2946
6a88adf2 2947 return 0;
7bee549e
ON		 2948
2949failed:
2950 usb_scuttle_anchored_urbs(&data->deferred);
2951done:
2952 spin_lock_irq(&data->txlock);
2953 clear_bit(BTUSB_SUSPENDING, &data->flags);
2954 spin_unlock_irq(&data->txlock);
2955
2956 return err;
6a88adf2 2957}
7bee549e 2958#endif
6a88adf2 2959
5e23b923
MH		 2960static struct usb_driver btusb_driver = {
2961 .name = "btusb",
2962 .probe = btusb_probe,
2963 .disconnect = btusb_disconnect,
7bee549e 2964#ifdef CONFIG_PM
6a88adf2
MH		 2965 .suspend = btusb_suspend,
2966 .resume = btusb_resume,
7bee549e 2967#endif
5e23b923 2968 .id_table = btusb_table,
7bee549e 2969 .supports_autosuspend = 1,
e1f12eb6 2970 .disable_hub_initiated_lpm = 1,
5e23b923
MH		 2971};
2972
93f1508c 2973module_usb_driver(btusb_driver);
5e23b923 2974
cfeb4145
MH		 2975module_param(disable_scofix, bool, 0644);
2976MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
2977
2978module_param(force_scofix, bool, 0644);
2979MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
2980
2981module_param(reset, bool, 0644);
2982MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
2983
5e23b923
MH		 2984MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
2985MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
2986MODULE_VERSION(VERSION);
2987MODULE_LICENSE("GPL");
Linux kernel - Deliverables
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