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mac802154: remove mib lock
[linux-2.6-block.git] / drivers / bluetooth / btusb.c
CommitLineData
5e23b923
MH		 1/*
2 *
3 * Generic Bluetooth USB driver
4 *
9bfa35fe 5 * Copyright (C) 2005-2008 Marcel Holtmann <marcel@holtmann.org>
5e23b923
MH		 6 *
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 *
22 */
23
5e23b923 24#include <linux/module.h>
5e23b923 25#include <linux/usb.h>
dffd30ee 26#include <linux/firmware.h>
a2698a9b 27#include <asm/unaligned.h>
5e23b923
MH		 28
29#include <net/bluetooth/bluetooth.h>
30#include <net/bluetooth/hci_core.h>
31
4185a0f5 32#include "btintel.h"
1df1f591 33#include "btbcm.h"
db33c77d 34#include "btrtl.h"
1df1f591 35
34dced9b 36#define VERSION "0.8"
cfeb4145 37
90ab5ee9
RR		 38static bool disable_scofix;
39static bool force_scofix;
7a9d4020 40
90ab5ee9 41static bool reset = 1;
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 },
4b552bc9 182 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
0b880062
AS		 183 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
184 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
185 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
186 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
1fb4e09a 187 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
0b880062
AS		 188 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
189 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
134d3b35 190 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
0b880062
AS		 191 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
192 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
89d2975f 193 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
a735f9e2 194 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
d66629c1 195 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
2d25f8b4 196 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
94a32d10 197 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
07c0ea87 198 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
b131237c 199 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
1e56f1eb 200 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
0b880062 201 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
ebaf5795 202 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
0b880062 203 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
ac71311e 204 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
0a3658cc 205 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
0b880062
AS		 206 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
207 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
eed307e2 208 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
5b77a1f3 209 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
3bb30a7c 210 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
033efa92 211 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
fa2f1394 212 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
d9f51b51 213
e9036e33
CYC		 214 /* Atheros AR5BBU12 with sflash firmware */
215 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
216
85d59726 217 /* Atheros AR5BBU12 with sflash firmware */
bc21fde2 218 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
0b880062 219 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
85d59726 220
3267c884 221 /* QCA ROME chipset */
c9e44474
MH		 222 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME },
223 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME },
3267c884 224
cfeb4145 225 /* Broadcom BCM2035 */
7a9d4020 226 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
0b880062
AS		 227 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
228 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 229
230 /* Broadcom BCM2045 */
7a9d4020
MH		 231 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
232 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
bdbef3d6 233
cfeb4145 234 /* IBM/Lenovo ThinkPad with Broadcom chip */
7a9d4020
MH		 235 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
236 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 237
238 /* HP laptop with Broadcom chip */
7a9d4020 239 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 240
241 /* Dell laptop with Broadcom chip */
7a9d4020 242 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 243
5ddd4a60 244 /* Dell Wireless 370 and 410 devices */
7a9d4020 245 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
5ddd4a60 246 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 247
7a9d4020
MH		 248 /* Belkin F8T012 and F8T013 devices */
249 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
250 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 251
5ddd4a60
MH		 252 /* Asus WL-BTD202 device */
253 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
254
255 /* Kensington Bluetooth USB adapter */
256 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
257
cfeb4145
MH		 258 /* RTX Telecom based adapters with buggy SCO support */
259 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
260 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
261
262 /* CONWISE Technology based adapters with buggy SCO support */
263 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
264
4fcef8ed
MH		 265 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
266 { USB_DEVICE(0x1300, 0x0001), .driver_info = BTUSB_SWAVE },
267
cfeb4145
MH		 268 /* Digianswer devices */
269 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
270 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
271
272 /* CSR BlueCore Bluetooth Sniffer */
4f64fa80
MH		 273 { USB_DEVICE(0x0a12, 0x0002),
274 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
cfeb4145
MH		 275
276 /* Frontline ComProbe Bluetooth Sniffer */
4f64fa80
MH		 277 { USB_DEVICE(0x16d3, 0x0002),
278 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
cfeb4145 279
cb1ee89f
MH		 280 /* Marvell Bluetooth devices */
281 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
282 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
283
d0ac9eb7 284 /* Intel Bluetooth devices */
407550fe 285 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
dffd30ee 286 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
ef4e5e4a 287 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL },
cda0dd78 288 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_NEW },
dffd30ee 289
d0ac9eb7
MH		 290 /* Other Intel Bluetooth devices */
291 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
292 .driver_info = BTUSB_IGNORE },
ae8df494 293
a2698a9b
DD		 294 /* Realtek Bluetooth devices */
295 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
296 .driver_info = BTUSB_REALTEK },
297
298 /* Additional Realtek 8723AE Bluetooth devices */
299 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
300 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
301
302 /* Additional Realtek 8723BE Bluetooth devices */
303 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
304 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
305 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
306 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
307 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
308
309 /* Additional Realtek 8821AE Bluetooth devices */
310 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
311 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
312 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
313 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
314 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
315
5e23b923
MH		 316 { } /* Terminating entry */
317};
318
9bfa35fe
MH		 319#define BTUSB_MAX_ISOC_FRAMES 10
320
5e23b923
MH		 321#define BTUSB_INTR_RUNNING 0
322#define BTUSB_BULK_RUNNING 1
9bfa35fe 323#define BTUSB_ISOC_RUNNING 2
7bee549e 324#define BTUSB_SUSPENDING 3
08b8b6c4 325#define BTUSB_DID_ISO_RESUME 4
cda0dd78
MH		 326#define BTUSB_BOOTLOADER 5
327#define BTUSB_DOWNLOADING 6
ce6bb929 328#define BTUSB_FIRMWARE_LOADED 7
cda0dd78 329#define BTUSB_FIRMWARE_FAILED 8
ce6bb929 330#define BTUSB_BOOTING 9
5e23b923
MH		 331
332struct btusb_data {
333 struct hci_dev *hdev;
334 struct usb_device *udev;
5fbcd260 335 struct usb_interface *intf;
9bfa35fe 336 struct usb_interface *isoc;
5e23b923 337
5e23b923
MH		 338 unsigned long flags;
339
340 struct work_struct work;
7bee549e 341 struct work_struct waker;
5e23b923 342
803b5836 343 struct usb_anchor deferred;
5e23b923 344 struct usb_anchor tx_anchor;
803b5836
MH		 345 int tx_in_flight;
346 spinlock_t txlock;
347
5e23b923
MH		 348 struct usb_anchor intr_anchor;
349 struct usb_anchor bulk_anchor;
9bfa35fe 350 struct usb_anchor isoc_anchor;
803b5836
MH		 351 spinlock_t rxlock;
352
353 struct sk_buff *evt_skb;
354 struct sk_buff *acl_skb;
355 struct sk_buff *sco_skb;
5e23b923
MH		 356
357 struct usb_endpoint_descriptor *intr_ep;
358 struct usb_endpoint_descriptor *bulk_tx_ep;
359 struct usb_endpoint_descriptor *bulk_rx_ep;
9bfa35fe
MH		 360 struct usb_endpoint_descriptor *isoc_tx_ep;
361 struct usb_endpoint_descriptor *isoc_rx_ep;
362
7a9d4020 363 __u8 cmdreq_type;
893ba544 364 __u8 cmdreq;
7a9d4020 365
43c2e57f 366 unsigned int sco_num;
9bfa35fe 367 int isoc_altsetting;
6a88adf2 368 int suspend_count;
2cbd3f5c 369
97307f51 370 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
2cbd3f5c 371 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
ace31982
KBYT		 372
373 int (*setup_on_usb)(struct hci_dev *hdev);
5e23b923
MH		 374};
375
803b5836
MH		 376static inline void btusb_free_frags(struct btusb_data *data)
377{
378 unsigned long flags;
379
380 spin_lock_irqsave(&data->rxlock, flags);
381
382 kfree_skb(data->evt_skb);
383 data->evt_skb = NULL;
384
385 kfree_skb(data->acl_skb);
386 data->acl_skb = NULL;
387
388 kfree_skb(data->sco_skb);
389 data->sco_skb = NULL;
390
391 spin_unlock_irqrestore(&data->rxlock, flags);
392}
393
1ffa4ad0
MH		 394static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
395{
803b5836
MH		 396 struct sk_buff *skb;
397 int err = 0;
398
399 spin_lock(&data->rxlock);
400 skb = data->evt_skb;
401
402 while (count) {
403 int len;
404
405 if (!skb) {
406 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
407 if (!skb) {
408 err = -ENOMEM;
409 break;
410 }
411
412 bt_cb(skb)->pkt_type = HCI_EVENT_PKT;
413 bt_cb(skb)->expect = HCI_EVENT_HDR_SIZE;
414 }
415
416 len = min_t(uint, bt_cb(skb)->expect, count);
417 memcpy(skb_put(skb, len), buffer, len);
418
419 count -= len;
420 buffer += len;
421 bt_cb(skb)->expect -= len;
422
423 if (skb->len == HCI_EVENT_HDR_SIZE) {
424 /* Complete event header */
425 bt_cb(skb)->expect = hci_event_hdr(skb)->plen;
426
427 if (skb_tailroom(skb) < bt_cb(skb)->expect) {
428 kfree_skb(skb);
429 skb = NULL;
430
431 err = -EILSEQ;
432 break;
433 }
434 }
435
436 if (bt_cb(skb)->expect == 0) {
437 /* Complete frame */
97307f51 438 data->recv_event(data->hdev, skb);
803b5836
MH		 439 skb = NULL;
440 }
441 }
442
443 data->evt_skb = skb;
444 spin_unlock(&data->rxlock);
445
446 return err;
1ffa4ad0
MH		 447}
448
449static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
450{
803b5836
MH		 451 struct sk_buff *skb;
452 int err = 0;
453
454 spin_lock(&data->rxlock);
455 skb = data->acl_skb;
456
457 while (count) {
458 int len;
459
460 if (!skb) {
461 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
462 if (!skb) {
463 err = -ENOMEM;
464 break;
465 }
466
467 bt_cb(skb)->pkt_type = HCI_ACLDATA_PKT;
468 bt_cb(skb)->expect = HCI_ACL_HDR_SIZE;
469 }
470
471 len = min_t(uint, bt_cb(skb)->expect, count);
472 memcpy(skb_put(skb, len), buffer, len);
473
474 count -= len;
475 buffer += len;
476 bt_cb(skb)->expect -= len;
477
478 if (skb->len == HCI_ACL_HDR_SIZE) {
479 __le16 dlen = hci_acl_hdr(skb)->dlen;
480
481 /* Complete ACL header */
482 bt_cb(skb)->expect = __le16_to_cpu(dlen);
483
484 if (skb_tailroom(skb) < bt_cb(skb)->expect) {
485 kfree_skb(skb);
486 skb = NULL;
487
488 err = -EILSEQ;
489 break;
490 }
491 }
492
493 if (bt_cb(skb)->expect == 0) {
494 /* Complete frame */
495 hci_recv_frame(data->hdev, skb);
496 skb = NULL;
497 }
498 }
499
500 data->acl_skb = skb;
501 spin_unlock(&data->rxlock);
502
503 return err;
1ffa4ad0
MH		 504}
505
506static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
507{
803b5836
MH		 508 struct sk_buff *skb;
509 int err = 0;
510
511 spin_lock(&data->rxlock);
512 skb = data->sco_skb;
513
514 while (count) {
515 int len;
516
517 if (!skb) {
518 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
519 if (!skb) {
520 err = -ENOMEM;
521 break;
522 }
523
524 bt_cb(skb)->pkt_type = HCI_SCODATA_PKT;
525 bt_cb(skb)->expect = HCI_SCO_HDR_SIZE;
526 }
527
528 len = min_t(uint, bt_cb(skb)->expect, count);
529 memcpy(skb_put(skb, len), buffer, len);
530
531 count -= len;
532 buffer += len;
533 bt_cb(skb)->expect -= len;
534
535 if (skb->len == HCI_SCO_HDR_SIZE) {
536 /* Complete SCO header */
537 bt_cb(skb)->expect = hci_sco_hdr(skb)->dlen;
538
539 if (skb_tailroom(skb) < bt_cb(skb)->expect) {
540 kfree_skb(skb);
541 skb = NULL;
542
543 err = -EILSEQ;
544 break;
545 }
546 }
547
548 if (bt_cb(skb)->expect == 0) {
549 /* Complete frame */
550 hci_recv_frame(data->hdev, skb);
551 skb = NULL;
552 }
553 }
554
555 data->sco_skb = skb;
556 spin_unlock(&data->rxlock);
557
558 return err;
1ffa4ad0
MH		 559}
560
5e23b923
MH		 561static void btusb_intr_complete(struct urb *urb)
562{
563 struct hci_dev *hdev = urb->context;
155961e8 564 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 565 int err;
566
89e7533d
MH		 567 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
568 urb->actual_length);
5e23b923
MH		 569
570 if (!test_bit(HCI_RUNNING, &hdev->flags))
571 return;
572
573 if (urb->status == 0) {
9bfa35fe
MH		 574 hdev->stat.byte_rx += urb->actual_length;
575
1ffa4ad0
MH		 576 if (btusb_recv_intr(data, urb->transfer_buffer,
577 urb->actual_length) < 0) {
5e23b923
MH		 578 BT_ERR("%s corrupted event packet", hdev->name);
579 hdev->stat.err_rx++;
580 }
85560c4a
CC		 581 } else if (urb->status == -ENOENT) {
582 /* Avoid suspend failed when usb_kill_urb */
583 return;
5e23b923
MH		 584 }
585
586 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
587 return;
588
7bee549e 589 usb_mark_last_busy(data->udev);
5e23b923
MH		 590 usb_anchor_urb(urb, &data->intr_anchor);
591
592 err = usb_submit_urb(urb, GFP_ATOMIC);
593 if (err < 0) {
4935f1c1
PB		 594 /* -EPERM: urb is being killed;
595 * -ENODEV: device got disconnected */
596 if (err != -EPERM && err != -ENODEV)
61faddf6 597 BT_ERR("%s urb %p failed to resubmit (%d)",
89e7533d 598 hdev->name, urb, -err);
5e23b923
MH		 599 usb_unanchor_urb(urb);
600 }
601}
602
2eda66f4 603static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
5e23b923 604{
155961e8 605 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 606 struct urb *urb;
607 unsigned char *buf;
608 unsigned int pipe;
609 int err, size;
610
611 BT_DBG("%s", hdev->name);
612
9bfa35fe
MH		 613 if (!data->intr_ep)
614 return -ENODEV;
615
2eda66f4 616 urb = usb_alloc_urb(0, mem_flags);
5e23b923
MH		 617 if (!urb)
618 return -ENOMEM;
619
620 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
621
2eda66f4 622 buf = kmalloc(size, mem_flags);
5e23b923
MH		 623 if (!buf) {
624 usb_free_urb(urb);
625 return -ENOMEM;
626 }
627
628 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
629
630 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
89e7533d 631 btusb_intr_complete, hdev, data->intr_ep->bInterval);
5e23b923
MH		 632
633 urb->transfer_flags |= URB_FREE_BUFFER;
634
635 usb_anchor_urb(urb, &data->intr_anchor);
636
2eda66f4 637 err = usb_submit_urb(urb, mem_flags);
5e23b923 638 if (err < 0) {
d4b8d1c9
PB		 639 if (err != -EPERM && err != -ENODEV)
640 BT_ERR("%s urb %p submission failed (%d)",
89e7533d 641 hdev->name, urb, -err);
5e23b923 642 usb_unanchor_urb(urb);
5e23b923
MH		 643 }
644
645 usb_free_urb(urb);
646
647 return err;
648}
649
650static void btusb_bulk_complete(struct urb *urb)
651{
652 struct hci_dev *hdev = urb->context;
155961e8 653 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 654 int err;
655
89e7533d
MH		 656 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
657 urb->actual_length);
5e23b923
MH		 658
659 if (!test_bit(HCI_RUNNING, &hdev->flags))
660 return;
661
662 if (urb->status == 0) {
9bfa35fe
MH		 663 hdev->stat.byte_rx += urb->actual_length;
664
2cbd3f5c 665 if (data->recv_bulk(data, urb->transfer_buffer,
1ffa4ad0 666 urb->actual_length) < 0) {
5e23b923
MH		 667 BT_ERR("%s corrupted ACL packet", hdev->name);
668 hdev->stat.err_rx++;
669 }
85560c4a
CC		 670 } else if (urb->status == -ENOENT) {
671 /* Avoid suspend failed when usb_kill_urb */
672 return;
5e23b923
MH		 673 }
674
675 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
676 return;
677
678 usb_anchor_urb(urb, &data->bulk_anchor);
652fd781 679 usb_mark_last_busy(data->udev);
5e23b923
MH		 680
681 err = usb_submit_urb(urb, GFP_ATOMIC);
682 if (err < 0) {
4935f1c1
PB		 683 /* -EPERM: urb is being killed;
684 * -ENODEV: device got disconnected */
685 if (err != -EPERM && err != -ENODEV)
61faddf6 686 BT_ERR("%s urb %p failed to resubmit (%d)",
89e7533d 687 hdev->name, urb, -err);
5e23b923
MH		 688 usb_unanchor_urb(urb);
689 }
690}
691
2eda66f4 692static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
5e23b923 693{
155961e8 694 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 695 struct urb *urb;
696 unsigned char *buf;
697 unsigned int pipe;
290ba200 698 int err, size = HCI_MAX_FRAME_SIZE;
5e23b923
MH		 699
700 BT_DBG("%s", hdev->name);
701
9bfa35fe
MH		 702 if (!data->bulk_rx_ep)
703 return -ENODEV;
704
2eda66f4 705 urb = usb_alloc_urb(0, mem_flags);
5e23b923
MH		 706 if (!urb)
707 return -ENOMEM;
708
2eda66f4 709 buf = kmalloc(size, mem_flags);
5e23b923
MH		 710 if (!buf) {
711 usb_free_urb(urb);
712 return -ENOMEM;
713 }
714
715 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
716
89e7533d
MH		 717 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
718 btusb_bulk_complete, hdev);
5e23b923
MH		 719
720 urb->transfer_flags |= URB_FREE_BUFFER;
721
7bee549e 722 usb_mark_last_busy(data->udev);
5e23b923
MH		 723 usb_anchor_urb(urb, &data->bulk_anchor);
724
2eda66f4 725 err = usb_submit_urb(urb, mem_flags);
5e23b923 726 if (err < 0) {
d4b8d1c9
PB		 727 if (err != -EPERM && err != -ENODEV)
728 BT_ERR("%s urb %p submission failed (%d)",
89e7533d 729 hdev->name, urb, -err);
5e23b923 730 usb_unanchor_urb(urb);
5e23b923
MH		 731 }
732
733 usb_free_urb(urb);
734
735 return err;
736}
737
9bfa35fe
MH		 738static void btusb_isoc_complete(struct urb *urb)
739{
740 struct hci_dev *hdev = urb->context;
155961e8 741 struct btusb_data *data = hci_get_drvdata(hdev);
9bfa35fe
MH		 742 int i, err;
743
89e7533d
MH		 744 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
745 urb->actual_length);
9bfa35fe
MH		 746
747 if (!test_bit(HCI_RUNNING, &hdev->flags))
748 return;
749
750 if (urb->status == 0) {
751 for (i = 0; i < urb->number_of_packets; i++) {
752 unsigned int offset = urb->iso_frame_desc[i].offset;
753 unsigned int length = urb->iso_frame_desc[i].actual_length;
754
755 if (urb->iso_frame_desc[i].status)
756 continue;
757
758 hdev->stat.byte_rx += length;
759
1ffa4ad0
MH		 760 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
761 length) < 0) {
9bfa35fe
MH		 762 BT_ERR("%s corrupted SCO packet", hdev->name);
763 hdev->stat.err_rx++;
764 }
765 }
85560c4a
CC		 766 } else if (urb->status == -ENOENT) {
767 /* Avoid suspend failed when usb_kill_urb */
768 return;
9bfa35fe
MH		 769 }
770
771 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
772 return;
773
774 usb_anchor_urb(urb, &data->isoc_anchor);
775
776 err = usb_submit_urb(urb, GFP_ATOMIC);
777 if (err < 0) {
4935f1c1
PB		 778 /* -EPERM: urb is being killed;
779 * -ENODEV: device got disconnected */
780 if (err != -EPERM && err != -ENODEV)
61faddf6 781 BT_ERR("%s urb %p failed to resubmit (%d)",
89e7533d 782 hdev->name, urb, -err);
9bfa35fe
MH		 783 usb_unanchor_urb(urb);
784 }
785}
786
42b16b3f 787static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
9bfa35fe
MH		 788{
789 int i, offset = 0;
790
791 BT_DBG("len %d mtu %d", len, mtu);
792
793 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
794 i++, offset += mtu, len -= mtu) {
795 urb->iso_frame_desc[i].offset = offset;
796 urb->iso_frame_desc[i].length = mtu;
797 }
798
799 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
800 urb->iso_frame_desc[i].offset = offset;
801 urb->iso_frame_desc[i].length = len;
802 i++;
803 }
804
805 urb->number_of_packets = i;
806}
807
2eda66f4 808static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
9bfa35fe 809{
155961e8 810 struct btusb_data *data = hci_get_drvdata(hdev);
9bfa35fe
MH		 811 struct urb *urb;
812 unsigned char *buf;
813 unsigned int pipe;
814 int err, size;
815
816 BT_DBG("%s", hdev->name);
817
818 if (!data->isoc_rx_ep)
819 return -ENODEV;
820
2eda66f4 821 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
9bfa35fe
MH		 822 if (!urb)
823 return -ENOMEM;
824
825 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
826 BTUSB_MAX_ISOC_FRAMES;
827
2eda66f4 828 buf = kmalloc(size, mem_flags);
9bfa35fe
MH		 829 if (!buf) {
830 usb_free_urb(urb);
831 return -ENOMEM;
832 }
833
834 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
835
fa0fb93f 836 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
89e7533d 837 hdev, data->isoc_rx_ep->bInterval);
9bfa35fe 838
89e7533d 839 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
9bfa35fe
MH		 840
841 __fill_isoc_descriptor(urb, size,
89e7533d 842 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
9bfa35fe
MH		 843
844 usb_anchor_urb(urb, &data->isoc_anchor);
845
2eda66f4 846 err = usb_submit_urb(urb, mem_flags);
9bfa35fe 847 if (err < 0) {
d4b8d1c9
PB		 848 if (err != -EPERM && err != -ENODEV)
849 BT_ERR("%s urb %p submission failed (%d)",
89e7533d 850 hdev->name, urb, -err);
9bfa35fe 851 usb_unanchor_urb(urb);
9bfa35fe
MH		 852 }
853
854 usb_free_urb(urb);
855
856 return err;
857}
858
5e23b923 859static void btusb_tx_complete(struct urb *urb)
7bee549e
ON		 860{
861 struct sk_buff *skb = urb->context;
89e7533d 862 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
155961e8 863 struct btusb_data *data = hci_get_drvdata(hdev);
7bee549e 864
89e7533d
MH		 865 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
866 urb->actual_length);
7bee549e
ON		 867
868 if (!test_bit(HCI_RUNNING, &hdev->flags))
869 goto done;
870
871 if (!urb->status)
872 hdev->stat.byte_tx += urb->transfer_buffer_length;
873 else
874 hdev->stat.err_tx++;
875
876done:
877 spin_lock(&data->txlock);
878 data->tx_in_flight--;
879 spin_unlock(&data->txlock);
880
881 kfree(urb->setup_packet);
882
883 kfree_skb(skb);
884}
885
886static void btusb_isoc_tx_complete(struct urb *urb)
5e23b923
MH		 887{
888 struct sk_buff *skb = urb->context;
89e7533d 889 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
5e23b923 890
89e7533d
MH		 891 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
892 urb->actual_length);
5e23b923
MH		 893
894 if (!test_bit(HCI_RUNNING, &hdev->flags))
895 goto done;
896
897 if (!urb->status)
898 hdev->stat.byte_tx += urb->transfer_buffer_length;
899 else
900 hdev->stat.err_tx++;
901
902done:
903 kfree(urb->setup_packet);
904
905 kfree_skb(skb);
906}
907
908static int btusb_open(struct hci_dev *hdev)
909{
155961e8 910 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 911 int err;
912
913 BT_DBG("%s", hdev->name);
914
ace31982
KBYT		 915 /* Patching USB firmware files prior to starting any URBs of HCI path
916 * It is more safe to use USB bulk channel for downloading USB patch
917 */
918 if (data->setup_on_usb) {
919 err = data->setup_on_usb(hdev);
eb50042f 920 if (err < 0)
ace31982
KBYT		 921 return err;
922 }
923
7bee549e
ON		 924 err = usb_autopm_get_interface(data->intf);
925 if (err < 0)
926 return err;
927
928 data->intf->needs_remote_wakeup = 1;
929
5e23b923 930 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
7bee549e 931 goto done;
5e23b923
MH		 932
933 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
7bee549e 934 goto done;
5e23b923 935
2eda66f4 936 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
43c2e57f
MH		 937 if (err < 0)
938 goto failed;
939
940 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
5e23b923 941 if (err < 0) {
43c2e57f
MH		 942 usb_kill_anchored_urbs(&data->intr_anchor);
943 goto failed;
5e23b923
MH		 944 }
945
43c2e57f
MH		 946 set_bit(BTUSB_BULK_RUNNING, &data->flags);
947 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
948
7bee549e
ON		 949done:
950 usb_autopm_put_interface(data->intf);
43c2e57f
MH		 951 return 0;
952
953failed:
954 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
955 clear_bit(HCI_RUNNING, &hdev->flags);
7bee549e 956 usb_autopm_put_interface(data->intf);
5e23b923
MH		 957 return err;
958}
959
7bee549e
ON		 960static void btusb_stop_traffic(struct btusb_data *data)
961{
962 usb_kill_anchored_urbs(&data->intr_anchor);
963 usb_kill_anchored_urbs(&data->bulk_anchor);
964 usb_kill_anchored_urbs(&data->isoc_anchor);
965}
966
5e23b923
MH		 967static int btusb_close(struct hci_dev *hdev)
968{
155961e8 969 struct btusb_data *data = hci_get_drvdata(hdev);
7bee549e 970 int err;
5e23b923
MH		 971
972 BT_DBG("%s", hdev->name);
973
974 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
975 return 0;
976
e8c3c3d2 977 cancel_work_sync(&data->work);
404291ac 978 cancel_work_sync(&data->waker);
e8c3c3d2 979
9bfa35fe 980 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
5e23b923 981 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
5e23b923 982 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
7bee549e
ON		 983
984 btusb_stop_traffic(data);
803b5836
MH		 985 btusb_free_frags(data);
986
7bee549e
ON		 987 err = usb_autopm_get_interface(data->intf);
988 if (err < 0)
7b8e2c1d 989 goto failed;
7bee549e
ON		 990
991 data->intf->needs_remote_wakeup = 0;
992 usb_autopm_put_interface(data->intf);
5e23b923 993
7b8e2c1d
ON		 994failed:
995 usb_scuttle_anchored_urbs(&data->deferred);
5e23b923
MH		 996 return 0;
997}
998
999static int btusb_flush(struct hci_dev *hdev)
1000{
155961e8 1001 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 1002
1003 BT_DBG("%s", hdev->name);
1004
1005 usb_kill_anchored_urbs(&data->tx_anchor);
803b5836 1006 btusb_free_frags(data);
5e23b923
MH		 1007
1008 return 0;
1009}
1010
047b2ec8 1011static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
5e23b923 1012{
155961e8 1013 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 1014 struct usb_ctrlrequest *dr;
1015 struct urb *urb;
1016 unsigned int pipe;
5e23b923 1017
047b2ec8
MH		 1018 urb = usb_alloc_urb(0, GFP_KERNEL);
1019 if (!urb)
1020 return ERR_PTR(-ENOMEM);
5e23b923 1021
047b2ec8
MH		 1022 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
1023 if (!dr) {
1024 usb_free_urb(urb);
1025 return ERR_PTR(-ENOMEM);
1026 }
5e23b923 1027
047b2ec8 1028 dr->bRequestType = data->cmdreq_type;
893ba544 1029 dr->bRequest = data->cmdreq;
047b2ec8
MH		 1030 dr->wIndex = 0;
1031 dr->wValue = 0;
1032 dr->wLength = __cpu_to_le16(skb->len);
7bd8f09f 1033
047b2ec8 1034 pipe = usb_sndctrlpipe(data->udev, 0x00);
5e23b923 1035
89e7533d 1036 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
047b2ec8 1037 skb->data, skb->len, btusb_tx_complete, skb);
5e23b923 1038
89e7533d 1039 skb->dev = (void *)hdev;
5e23b923 1040
047b2ec8
MH		 1041 return urb;
1042}
5e23b923 1043
047b2ec8
MH		 1044static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
1045{
1046 struct btusb_data *data = hci_get_drvdata(hdev);
1047 struct urb *urb;
1048 unsigned int pipe;
5e23b923 1049
047b2ec8
MH		 1050 if (!data->bulk_tx_ep)
1051 return ERR_PTR(-ENODEV);
9bfa35fe 1052
047b2ec8
MH		 1053 urb = usb_alloc_urb(0, GFP_KERNEL);
1054 if (!urb)
1055 return ERR_PTR(-ENOMEM);
5e23b923 1056
047b2ec8 1057 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
5e23b923 1058
047b2ec8
MH		 1059 usb_fill_bulk_urb(urb, data->udev, pipe,
1060 skb->data, skb->len, btusb_tx_complete, skb);
5e23b923 1061
89e7533d 1062 skb->dev = (void *)hdev;
5e23b923 1063
047b2ec8
MH		 1064 return urb;
1065}
9bfa35fe 1066
047b2ec8
MH		 1067static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
1068{
1069 struct btusb_data *data = hci_get_drvdata(hdev);
1070 struct urb *urb;
1071 unsigned int pipe;
9bfa35fe 1072
047b2ec8
MH		 1073 if (!data->isoc_tx_ep)
1074 return ERR_PTR(-ENODEV);
9bfa35fe 1075
047b2ec8
MH		 1076 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
1077 if (!urb)
1078 return ERR_PTR(-ENOMEM);
9bfa35fe 1079
047b2ec8 1080 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
9bfa35fe 1081
047b2ec8
MH		 1082 usb_fill_int_urb(urb, data->udev, pipe,
1083 skb->data, skb->len, btusb_isoc_tx_complete,
1084 skb, data->isoc_tx_ep->bInterval);
9bfa35fe 1085
047b2ec8 1086 urb->transfer_flags = URB_ISO_ASAP;
5e23b923 1087
047b2ec8
MH		 1088 __fill_isoc_descriptor(urb, skb->len,
1089 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
5e23b923 1090
89e7533d 1091 skb->dev = (void *)hdev;
047b2ec8
MH		 1092
1093 return urb;
1094}
1095
1096static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
1097{
1098 struct btusb_data *data = hci_get_drvdata(hdev);
1099 int err;
7bee549e 1100
5e23b923
MH		 1101 usb_anchor_urb(urb, &data->tx_anchor);
1102
e9753eff 1103 err = usb_submit_urb(urb, GFP_KERNEL);
5e23b923 1104 if (err < 0) {
5a9b80e2
PB		 1105 if (err != -EPERM && err != -ENODEV)
1106 BT_ERR("%s urb %p submission failed (%d)",
89e7533d 1107 hdev->name, urb, -err);
5e23b923
MH		 1108 kfree(urb->setup_packet);
1109 usb_unanchor_urb(urb);
7bee549e
ON		 1110 } else {
1111 usb_mark_last_busy(data->udev);
5e23b923
MH		 1112 }
1113
54a8a79c 1114 usb_free_urb(urb);
5e23b923
MH		 1115 return err;
1116}
1117
047b2ec8
MH		 1118static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
1119{
1120 struct btusb_data *data = hci_get_drvdata(hdev);
1121 unsigned long flags;
1122 bool suspending;
1123
1124 spin_lock_irqsave(&data->txlock, flags);
1125 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
1126 if (!suspending)
1127 data->tx_in_flight++;
1128 spin_unlock_irqrestore(&data->txlock, flags);
1129
1130 if (!suspending)
1131 return submit_tx_urb(hdev, urb);
1132
1133 usb_anchor_urb(urb, &data->deferred);
1134 schedule_work(&data->waker);
1135
1136 usb_free_urb(urb);
1137 return 0;
1138}
1139
1140static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
1141{
1142 struct urb *urb;
1143
1144 BT_DBG("%s", hdev->name);
1145
1146 if (!test_bit(HCI_RUNNING, &hdev->flags))
1147 return -EBUSY;
1148
1149 switch (bt_cb(skb)->pkt_type) {
1150 case HCI_COMMAND_PKT:
1151 urb = alloc_ctrl_urb(hdev, skb);
1152 if (IS_ERR(urb))
1153 return PTR_ERR(urb);
1154
1155 hdev->stat.cmd_tx++;
1156 return submit_or_queue_tx_urb(hdev, urb);
1157
1158 case HCI_ACLDATA_PKT:
1159 urb = alloc_bulk_urb(hdev, skb);
1160 if (IS_ERR(urb))
1161 return PTR_ERR(urb);
1162
1163 hdev->stat.acl_tx++;
1164 return submit_or_queue_tx_urb(hdev, urb);
1165
1166 case HCI_SCODATA_PKT:
1167 if (hci_conn_num(hdev, SCO_LINK) < 1)
1168 return -ENODEV;
1169
1170 urb = alloc_isoc_urb(hdev, skb);
1171 if (IS_ERR(urb))
1172 return PTR_ERR(urb);
1173
1174 hdev->stat.sco_tx++;
1175 return submit_tx_urb(hdev, urb);
1176 }
1177
1178 return -EILSEQ;
1179}
1180
5e23b923
MH		 1181static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
1182{
155961e8 1183 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 1184
1185 BT_DBG("%s evt %d", hdev->name, evt);
1186
014f7bc7
MH		 1187 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
1188 data->sco_num = hci_conn_num(hdev, SCO_LINK);
43c2e57f 1189 schedule_work(&data->work);
a780efa8 1190 }
5e23b923
MH		 1191}
1192
42b16b3f 1193static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
9bfa35fe 1194{
155961e8 1195 struct btusb_data *data = hci_get_drvdata(hdev);
9bfa35fe
MH		 1196 struct usb_interface *intf = data->isoc;
1197 struct usb_endpoint_descriptor *ep_desc;
1198 int i, err;
1199
1200 if (!data->isoc)
1201 return -ENODEV;
1202
1203 err = usb_set_interface(data->udev, 1, altsetting);
1204 if (err < 0) {
1205 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
1206 return err;
1207 }
1208
1209 data->isoc_altsetting = altsetting;
1210
1211 data->isoc_tx_ep = NULL;
1212 data->isoc_rx_ep = NULL;
1213
1214 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1215 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1216
1217 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
1218 data->isoc_tx_ep = ep_desc;
1219 continue;
1220 }
1221
1222 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
1223 data->isoc_rx_ep = ep_desc;
1224 continue;
1225 }
1226 }
1227
1228 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
1229 BT_ERR("%s invalid SCO descriptors", hdev->name);
1230 return -ENODEV;
1231 }
1232
1233 return 0;
1234}
1235
5e23b923
MH		 1236static void btusb_work(struct work_struct *work)
1237{
1238 struct btusb_data *data = container_of(work, struct btusb_data, work);
1239 struct hci_dev *hdev = data->hdev;
f4001d28 1240 int new_alts;
7bee549e 1241 int err;
5e23b923 1242
014f7bc7 1243 if (data->sco_num > 0) {
08b8b6c4 1244 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
8efdd0cd 1245 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
7bee549e
ON		 1246 if (err < 0) {
1247 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1248 usb_kill_anchored_urbs(&data->isoc_anchor);
1249 return;
1250 }
1251
08b8b6c4 1252 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
7bee549e 1253 }
f4001d28
MA		 1254
1255 if (hdev->voice_setting & 0x0020) {
1256 static const int alts[3] = { 2, 4, 5 };
89e7533d 1257
014f7bc7 1258 new_alts = alts[data->sco_num - 1];
f4001d28 1259 } else {
014f7bc7 1260 new_alts = data->sco_num;
f4001d28
MA		 1261 }
1262
1263 if (data->isoc_altsetting != new_alts) {
9bfa35fe
MH		 1264 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1265 usb_kill_anchored_urbs(&data->isoc_anchor);
1266
f4001d28 1267 if (__set_isoc_interface(hdev, new_alts) < 0)
9bfa35fe
MH		 1268 return;
1269 }
1270
1271 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2eda66f4 1272 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
9bfa35fe
MH		 1273 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1274 else
2eda66f4 1275 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
9bfa35fe
MH		 1276 }
1277 } else {
1278 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1279 usb_kill_anchored_urbs(&data->isoc_anchor);
1280
1281 __set_isoc_interface(hdev, 0);
08b8b6c4 1282 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
8efdd0cd 1283 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
5e23b923
MH		 1284 }
1285}
1286
7bee549e
ON		 1287static void btusb_waker(struct work_struct *work)
1288{
1289 struct btusb_data *data = container_of(work, struct btusb_data, waker);
1290 int err;
1291
1292 err = usb_autopm_get_interface(data->intf);
1293 if (err < 0)
1294 return;
1295
1296 usb_autopm_put_interface(data->intf);
1297}
1298
6576fe4a
DD		 1299static struct sk_buff *btusb_read_local_version(struct hci_dev *hdev)
1300{
1301 struct sk_buff *skb;
1302
1303 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1304 HCI_INIT_TIMEOUT);
1305 if (IS_ERR(skb)) {
1306 BT_ERR("%s: HCI_OP_READ_LOCAL_VERSION failed (%ld)",
1307 hdev->name, PTR_ERR(skb));
1308 return skb;
1309 }
1310
1311 if (skb->len != sizeof(struct hci_rp_read_local_version)) {
1312 BT_ERR("%s: HCI_OP_READ_LOCAL_VERSION event length mismatch",
1313 hdev->name);
1314 kfree_skb(skb);
1315 return ERR_PTR(-EIO);
1316 }
1317
1318 return skb;
1319}
1320
9f8f962c
MH		 1321static int btusb_setup_bcm92035(struct hci_dev *hdev)
1322{
1323 struct sk_buff *skb;
1324 u8 val = 0x00;
1325
1326 BT_DBG("%s", hdev->name);
1327
1328 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
1329 if (IS_ERR(skb))
1330 BT_ERR("BCM92035 command failed (%ld)", -PTR_ERR(skb));
1331 else
1332 kfree_skb(skb);
1333
1334 return 0;
1335}
1336
81cac64b
MH		 1337static int btusb_setup_csr(struct hci_dev *hdev)
1338{
1339 struct hci_rp_read_local_version *rp;
1340 struct sk_buff *skb;
1341 int ret;
1342
1343 BT_DBG("%s", hdev->name);
1344
6576fe4a
DD		 1345 skb = btusb_read_local_version(hdev);
1346 if (IS_ERR(skb))
81cac64b 1347 return -PTR_ERR(skb);
81cac64b 1348
89e7533d 1349 rp = (struct hci_rp_read_local_version *)skb->data;
81cac64b
MH		 1350
1351 if (!rp->status) {
1352 if (le16_to_cpu(rp->manufacturer) != 10) {
1353 /* Clear the reset quirk since this is not an actual
1354 * early Bluetooth 1.1 device from CSR.
1355 */
1356 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1357
1358 /* These fake CSR controllers have all a broken
1359 * stored link key handling and so just disable it.
1360 */
1361 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY,
1362 &hdev->quirks);
1363 }
1364 }
1365
1366 ret = -bt_to_errno(rp->status);
1367
1368 kfree_skb(skb);
1369
1370 return ret;
1371}
1372
dffd30ee 1373static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev,
89e7533d 1374 struct intel_version *ver)
dffd30ee
THJA		 1375{
1376 const struct firmware *fw;
1377 char fwname[64];
1378 int ret;
1379
1380 snprintf(fwname, sizeof(fwname),
1381 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq",
1382 ver->hw_platform, ver->hw_variant, ver->hw_revision,
1383 ver->fw_variant, ver->fw_revision, ver->fw_build_num,
1384 ver->fw_build_ww, ver->fw_build_yy);
1385
1386 ret = request_firmware(&fw, fwname, &hdev->dev);
1387 if (ret < 0) {
1388 if (ret == -EINVAL) {
1389 BT_ERR("%s Intel firmware file request failed (%d)",
1390 hdev->name, ret);
1391 return NULL;
1392 }
1393
1394 BT_ERR("%s failed to open Intel firmware file: %s(%d)",
1395 hdev->name, fwname, ret);
1396
1397 /* If the correct firmware patch file is not found, use the
1398 * default firmware patch file instead
1399 */
1400 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq",
1401 ver->hw_platform, ver->hw_variant);
1402 if (request_firmware(&fw, fwname, &hdev->dev) < 0) {
1403 BT_ERR("%s failed to open default Intel fw file: %s",
1404 hdev->name, fwname);
1405 return NULL;
1406 }
1407 }
1408
1409 BT_INFO("%s: Intel Bluetooth firmware file: %s", hdev->name, fwname);
1410
1411 return fw;
1412}
1413
1414static int btusb_setup_intel_patching(struct hci_dev *hdev,
1415 const struct firmware *fw,
1416 const u8 **fw_ptr, int *disable_patch)
1417{
1418 struct sk_buff *skb;
1419 struct hci_command_hdr *cmd;
1420 const u8 *cmd_param;
1421 struct hci_event_hdr *evt = NULL;
1422 const u8 *evt_param = NULL;
1423 int remain = fw->size - (*fw_ptr - fw->data);
1424
1425 /* The first byte indicates the types of the patch command or event.
1426 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes
1427 * in the current firmware buffer doesn't start with 0x01 or
1428 * the size of remain buffer is smaller than HCI command header,
1429 * the firmware file is corrupted and it should stop the patching
1430 * process.
1431 */
1432 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) {
1433 BT_ERR("%s Intel fw corrupted: invalid cmd read", hdev->name);
1434 return -EINVAL;
1435 }
1436 (*fw_ptr)++;
1437 remain--;
1438
1439 cmd = (struct hci_command_hdr *)(*fw_ptr);
1440 *fw_ptr += sizeof(*cmd);
1441 remain -= sizeof(*cmd);
1442
1443 /* Ensure that the remain firmware data is long enough than the length
1444 * of command parameter. If not, the firmware file is corrupted.
1445 */
1446 if (remain < cmd->plen) {
1447 BT_ERR("%s Intel fw corrupted: invalid cmd len", hdev->name);
1448 return -EFAULT;
1449 }
1450
1451 /* If there is a command that loads a patch in the firmware
1452 * file, then enable the patch upon success, otherwise just
1453 * disable the manufacturer mode, for example patch activation
1454 * is not required when the default firmware patch file is used
1455 * because there are no patch data to load.
1456 */
1457 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e)
1458 *disable_patch = 0;
1459
1460 cmd_param = *fw_ptr;
1461 *fw_ptr += cmd->plen;
1462 remain -= cmd->plen;
1463
1464 /* This reads the expected events when the above command is sent to the
1465 * device. Some vendor commands expects more than one events, for
1466 * example command status event followed by vendor specific event.
1467 * For this case, it only keeps the last expected event. so the command
1468 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of
1469 * last expected event.
1470 */
1471 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) {
1472 (*fw_ptr)++;
1473 remain--;
1474
1475 evt = (struct hci_event_hdr *)(*fw_ptr);
1476 *fw_ptr += sizeof(*evt);
1477 remain -= sizeof(*evt);
1478
1479 if (remain < evt->plen) {
1480 BT_ERR("%s Intel fw corrupted: invalid evt len",
1481 hdev->name);
1482 return -EFAULT;
1483 }
1484
1485 evt_param = *fw_ptr;
1486 *fw_ptr += evt->plen;
1487 remain -= evt->plen;
1488 }
1489
1490 /* Every HCI commands in the firmware file has its correspond event.
1491 * If event is not found or remain is smaller than zero, the firmware
1492 * file is corrupted.
1493 */
1494 if (!evt || !evt_param || remain < 0) {
1495 BT_ERR("%s Intel fw corrupted: invalid evt read", hdev->name);
1496 return -EFAULT;
1497 }
1498
1499 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen,
1500 cmd_param, evt->evt, HCI_INIT_TIMEOUT);
1501 if (IS_ERR(skb)) {
1502 BT_ERR("%s sending Intel patch command (0x%4.4x) failed (%ld)",
1503 hdev->name, cmd->opcode, PTR_ERR(skb));
d9c78e97 1504 return PTR_ERR(skb);
dffd30ee
THJA		 1505 }
1506
1507 /* It ensures that the returned event matches the event data read from
1508 * the firmware file. At fist, it checks the length and then
1509 * the contents of the event.
1510 */
1511 if (skb->len != evt->plen) {
1512 BT_ERR("%s mismatch event length (opcode 0x%4.4x)", hdev->name,
1513 le16_to_cpu(cmd->opcode));
1514 kfree_skb(skb);
1515 return -EFAULT;
1516 }
1517
1518 if (memcmp(skb->data, evt_param, evt->plen)) {
1519 BT_ERR("%s mismatch event parameter (opcode 0x%4.4x)",
1520 hdev->name, le16_to_cpu(cmd->opcode));
1521 kfree_skb(skb);
1522 return -EFAULT;
1523 }
1524 kfree_skb(skb);
1525
1526 return 0;
1527}
1528
1529static int btusb_setup_intel(struct hci_dev *hdev)
1530{
1531 struct sk_buff *skb;
1532 const struct firmware *fw;
1533 const u8 *fw_ptr;
1534 int disable_patch;
1535 struct intel_version *ver;
1536
1537 const u8 mfg_enable[] = { 0x01, 0x00 };
1538 const u8 mfg_disable[] = { 0x00, 0x00 };
1539 const u8 mfg_reset_deactivate[] = { 0x00, 0x01 };
1540 const u8 mfg_reset_activate[] = { 0x00, 0x02 };
1541
1542 BT_DBG("%s", hdev->name);
1543
1544 /* The controller has a bug with the first HCI command sent to it
1545 * returning number of completed commands as zero. This would stall the
1546 * command processing in the Bluetooth core.
1547 *
1548 * As a workaround, send HCI Reset command first which will reset the
1549 * number of completed commands and allow normal command processing
1550 * from now on.
1551 */
1552 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1553 if (IS_ERR(skb)) {
1554 BT_ERR("%s sending initial HCI reset command failed (%ld)",
1555 hdev->name, PTR_ERR(skb));
d9c78e97 1556 return PTR_ERR(skb);
dffd30ee
THJA		 1557 }
1558 kfree_skb(skb);
1559
1560 /* Read Intel specific controller version first to allow selection of
1561 * which firmware file to load.
1562 *
1563 * The returned information are hardware variant and revision plus
1564 * firmware variant, revision and build number.
1565 */
1566 skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT);
1567 if (IS_ERR(skb)) {
1568 BT_ERR("%s reading Intel fw version command failed (%ld)",
1569 hdev->name, PTR_ERR(skb));
d9c78e97 1570 return PTR_ERR(skb);
dffd30ee
THJA		 1571 }
1572
1573 if (skb->len != sizeof(*ver)) {
1574 BT_ERR("%s Intel version event length mismatch", hdev->name);
1575 kfree_skb(skb);
1576 return -EIO;
1577 }
1578
1579 ver = (struct intel_version *)skb->data;
dffd30ee
THJA		 1580
1581 BT_INFO("%s: read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
1582 hdev->name, ver->hw_platform, ver->hw_variant,
1583 ver->hw_revision, ver->fw_variant, ver->fw_revision,
1584 ver->fw_build_num, ver->fw_build_ww, ver->fw_build_yy,
1585 ver->fw_patch_num);
1586
1587 /* fw_patch_num indicates the version of patch the device currently
1588 * have. If there is no patch data in the device, it is always 0x00.
1589 * So, if it is other than 0x00, no need to patch the deivce again.
1590 */
1591 if (ver->fw_patch_num) {
1592 BT_INFO("%s: Intel device is already patched. patch num: %02x",
1593 hdev->name, ver->fw_patch_num);
1594 kfree_skb(skb);
4185a0f5 1595 btintel_check_bdaddr(hdev);
dffd30ee
THJA		 1596 return 0;
1597 }
1598
1599 /* Opens the firmware patch file based on the firmware version read
1600 * from the controller. If it fails to open the matching firmware
1601 * patch file, it tries to open the default firmware patch file.
1602 * If no patch file is found, allow the device to operate without
1603 * a patch.
1604 */
1605 fw = btusb_setup_intel_get_fw(hdev, ver);
1606 if (!fw) {
1607 kfree_skb(skb);
4185a0f5 1608 btintel_check_bdaddr(hdev);
dffd30ee
THJA		 1609 return 0;
1610 }
1611 fw_ptr = fw->data;
1612
1613 /* This Intel specific command enables the manufacturer mode of the
1614 * controller.
1615 *
1616 * Only while this mode is enabled, the driver can download the
1617 * firmware patch data and configuration parameters.
1618 */
1619 skb = __hci_cmd_sync(hdev, 0xfc11, 2, mfg_enable, HCI_INIT_TIMEOUT);
1620 if (IS_ERR(skb)) {
1621 BT_ERR("%s entering Intel manufacturer mode failed (%ld)",
1622 hdev->name, PTR_ERR(skb));
1623 release_firmware(fw);
d9c78e97 1624 return PTR_ERR(skb);
dffd30ee
THJA		 1625 }
1626
dffd30ee
THJA		 1627 kfree_skb(skb);
1628
1629 disable_patch = 1;
1630
1631 /* The firmware data file consists of list of Intel specific HCI
1632 * commands and its expected events. The first byte indicates the
1633 * type of the message, either HCI command or HCI event.
1634 *
1635 * It reads the command and its expected event from the firmware file,
1636 * and send to the controller. Once __hci_cmd_sync_ev() returns,
1637 * the returned event is compared with the event read from the firmware
1638 * file and it will continue until all the messages are downloaded to
1639 * the controller.
1640 *
1641 * Once the firmware patching is completed successfully,
1642 * the manufacturer mode is disabled with reset and activating the
1643 * downloaded patch.
1644 *
1645 * If the firmware patching fails, the manufacturer mode is
1646 * disabled with reset and deactivating the patch.
1647 *
1648 * If the default patch file is used, no reset is done when disabling
1649 * the manufacturer.
1650 */
1651 while (fw->size > fw_ptr - fw->data) {
1652 int ret;
1653
1654 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr,
1655 &disable_patch);
1656 if (ret < 0)
1657 goto exit_mfg_deactivate;
1658 }
1659
1660 release_firmware(fw);
1661
1662 if (disable_patch)
1663 goto exit_mfg_disable;
1664
1665 /* Patching completed successfully and disable the manufacturer mode
1666 * with reset and activate the downloaded firmware patches.
1667 */
1668 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_activate),
1669 mfg_reset_activate, HCI_INIT_TIMEOUT);
1670 if (IS_ERR(skb)) {
1671 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1672 hdev->name, PTR_ERR(skb));
d9c78e97 1673 return PTR_ERR(skb);
dffd30ee
THJA		 1674 }
1675 kfree_skb(skb);
1676
1677 BT_INFO("%s: Intel Bluetooth firmware patch completed and activated",
1678 hdev->name);
1679
4185a0f5 1680 btintel_check_bdaddr(hdev);
dffd30ee
THJA		 1681 return 0;
1682
1683exit_mfg_disable:
1684 /* Disable the manufacturer mode without reset */
1685 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_disable), mfg_disable,
1686 HCI_INIT_TIMEOUT);
1687 if (IS_ERR(skb)) {
1688 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1689 hdev->name, PTR_ERR(skb));
d9c78e97 1690 return PTR_ERR(skb);
dffd30ee
THJA		 1691 }
1692 kfree_skb(skb);
1693
1694 BT_INFO("%s: Intel Bluetooth firmware patch completed", hdev->name);
40cb0984 1695
4185a0f5 1696 btintel_check_bdaddr(hdev);
dffd30ee
THJA		 1697 return 0;
1698
1699exit_mfg_deactivate:
1700 release_firmware(fw);
1701
1702 /* Patching failed. Disable the manufacturer mode with reset and
1703 * deactivate the downloaded firmware patches.
1704 */
1705 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_deactivate),
1706 mfg_reset_deactivate, HCI_INIT_TIMEOUT);
1707 if (IS_ERR(skb)) {
1708 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1709 hdev->name, PTR_ERR(skb));
d9c78e97 1710 return PTR_ERR(skb);
dffd30ee
THJA		 1711 }
1712 kfree_skb(skb);
1713
1714 BT_INFO("%s: Intel Bluetooth firmware patch completed and deactivated",
1715 hdev->name);
1716
4185a0f5 1717 btintel_check_bdaddr(hdev);
dffd30ee
THJA		 1718 return 0;
1719}
1720
cda0dd78
MH		 1721static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
1722{
1723 struct sk_buff *skb;
1724 struct hci_event_hdr *hdr;
1725 struct hci_ev_cmd_complete *evt;
1726
1727 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_ATOMIC);
1728 if (!skb)
1729 return -ENOMEM;
1730
1731 hdr = (struct hci_event_hdr *)skb_put(skb, sizeof(*hdr));
1732 hdr->evt = HCI_EV_CMD_COMPLETE;
1733 hdr->plen = sizeof(*evt) + 1;
1734
1735 evt = (struct hci_ev_cmd_complete *)skb_put(skb, sizeof(*evt));
1736 evt->ncmd = 0x01;
1737 evt->opcode = cpu_to_le16(opcode);
1738
1739 *skb_put(skb, 1) = 0x00;
1740
1741 bt_cb(skb)->pkt_type = HCI_EVENT_PKT;
1742
1743 return hci_recv_frame(hdev, skb);
1744}
1745
1746static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
1747 int count)
1748{
1749 /* When the device is in bootloader mode, then it can send
1750 * events via the bulk endpoint. These events are treated the
1751 * same way as the ones received from the interrupt endpoint.
1752 */
1753 if (test_bit(BTUSB_BOOTLOADER, &data->flags))
1754 return btusb_recv_intr(data, buffer, count);
1755
1756 return btusb_recv_bulk(data, buffer, count);
1757}
1758
ccd6da2a
MH		 1759static void btusb_intel_bootup(struct btusb_data *data, const void *ptr,
1760 unsigned int len)
1761{
1762 const struct intel_bootup *evt = ptr;
1763
1764 if (len != sizeof(*evt))
1765 return;
1766
1767 if (test_and_clear_bit(BTUSB_BOOTING, &data->flags)) {
1768 smp_mb__after_atomic();
1769 wake_up_bit(&data->flags, BTUSB_BOOTING);
1770 }
1771}
1772
1773static void btusb_intel_secure_send_result(struct btusb_data *data,
1774 const void *ptr, unsigned int len)
1775{
1776 const struct intel_secure_send_result *evt = ptr;
1777
1778 if (len != sizeof(*evt))
1779 return;
1780
1781 if (evt->result)
1782 set_bit(BTUSB_FIRMWARE_FAILED, &data->flags);
1783
1784 if (test_and_clear_bit(BTUSB_DOWNLOADING, &data->flags) &&
1785 test_bit(BTUSB_FIRMWARE_LOADED, &data->flags)) {
1786 smp_mb__after_atomic();
1787 wake_up_bit(&data->flags, BTUSB_DOWNLOADING);
1788 }
1789}
1790
cda0dd78
MH		 1791static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb)
1792{
1793 struct btusb_data *data = hci_get_drvdata(hdev);
1794
1795 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
1796 struct hci_event_hdr *hdr = (void *)skb->data;
1797
ccd6da2a
MH		 1798 if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff &&
1799 hdr->plen > 0) {
1800 const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1;
1801 unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1;
1802
1803 switch (skb->data[2]) {
1804 case 0x02:
1805 /* When switching to the operational firmware
1806 * the device sends a vendor specific event
1807 * indicating that the bootup completed.
1808 */
1809 btusb_intel_bootup(data, ptr, len);
1810 break;
1811 case 0x06:
1812 /* When the firmware loading completes the
1813 * device sends out a vendor specific event
1814 * indicating the result of the firmware
1815 * loading.
1816 */
1817 btusb_intel_secure_send_result(data, ptr, len);
1818 break;
fad70972 1819 }
cda0dd78
MH		 1820 }
1821 }
1822
1823 return hci_recv_frame(hdev, skb);
1824}
1825
1826static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
1827{
1828 struct btusb_data *data = hci_get_drvdata(hdev);
1829 struct urb *urb;
1830
1831 BT_DBG("%s", hdev->name);
1832
1833 if (!test_bit(HCI_RUNNING, &hdev->flags))
1834 return -EBUSY;
1835
1836 switch (bt_cb(skb)->pkt_type) {
1837 case HCI_COMMAND_PKT:
1838 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
1839 struct hci_command_hdr *cmd = (void *)skb->data;
1840 __u16 opcode = le16_to_cpu(cmd->opcode);
1841
1842 /* When in bootloader mode and the command 0xfc09
1843 * is received, it needs to be send down the
1844 * bulk endpoint. So allocate a bulk URB instead.
1845 */
1846 if (opcode == 0xfc09)
1847 urb = alloc_bulk_urb(hdev, skb);
1848 else
1849 urb = alloc_ctrl_urb(hdev, skb);
1850
1851 /* When the 0xfc01 command is issued to boot into
1852 * the operational firmware, it will actually not
1853 * send a command complete event. To keep the flow
1854 * control working inject that event here.
1855 */
1856 if (opcode == 0xfc01)
1857 inject_cmd_complete(hdev, opcode);
1858 } else {
1859 urb = alloc_ctrl_urb(hdev, skb);
1860 }
1861 if (IS_ERR(urb))
1862 return PTR_ERR(urb);
1863
1864 hdev->stat.cmd_tx++;
1865 return submit_or_queue_tx_urb(hdev, urb);
1866
1867 case HCI_ACLDATA_PKT:
1868 urb = alloc_bulk_urb(hdev, skb);
1869 if (IS_ERR(urb))
1870 return PTR_ERR(urb);
1871
1872 hdev->stat.acl_tx++;
1873 return submit_or_queue_tx_urb(hdev, urb);
1874
1875 case HCI_SCODATA_PKT:
1876 if (hci_conn_num(hdev, SCO_LINK) < 1)
1877 return -ENODEV;
1878
1879 urb = alloc_isoc_urb(hdev, skb);
1880 if (IS_ERR(urb))
1881 return PTR_ERR(urb);
1882
1883 hdev->stat.sco_tx++;
1884 return submit_tx_urb(hdev, urb);
1885 }
1886
1887 return -EILSEQ;
1888}
1889
1890static int btusb_intel_secure_send(struct hci_dev *hdev, u8 fragment_type,
1891 u32 plen, const void *param)
1892{
1893 while (plen > 0) {
1894 struct sk_buff *skb;
1895 u8 cmd_param[253], fragment_len = (plen > 252) ? 252 : plen;
1896
1897 cmd_param[0] = fragment_type;
1898 memcpy(cmd_param + 1, param, fragment_len);
1899
1900 skb = __hci_cmd_sync(hdev, 0xfc09, fragment_len + 1,
1901 cmd_param, HCI_INIT_TIMEOUT);
1902 if (IS_ERR(skb))
1903 return PTR_ERR(skb);
1904
1905 kfree_skb(skb);
1906
1907 plen -= fragment_len;
1908 param += fragment_len;
1909 }
1910
1911 return 0;
1912}
1913
1914static void btusb_intel_version_info(struct hci_dev *hdev,
1915 struct intel_version *ver)
1916{
1917 const char *variant;
1918
1919 switch (ver->fw_variant) {
1920 case 0x06:
1921 variant = "Bootloader";
1922 break;
1923 case 0x23:
1924 variant = "Firmware";
1925 break;
1926 default:
1927 return;
1928 }
1929
1930 BT_INFO("%s: %s revision %u.%u build %u week %u %u", hdev->name,
1931 variant, ver->fw_revision >> 4, ver->fw_revision & 0x0f,
1932 ver->fw_build_num, ver->fw_build_ww, 2000 + ver->fw_build_yy);
1933}
1934
1935static int btusb_setup_intel_new(struct hci_dev *hdev)
1936{
1937 static const u8 reset_param[] = { 0x00, 0x01, 0x00, 0x01,
1938 0x00, 0x08, 0x04, 0x00 };
1939 struct btusb_data *data = hci_get_drvdata(hdev);
1940 struct sk_buff *skb;
1941 struct intel_version *ver;
1942 struct intel_boot_params *params;
1943 const struct firmware *fw;
1944 const u8 *fw_ptr;
1945 char fwname[64];
1946 ktime_t calltime, delta, rettime;
1947 unsigned long long duration;
1948 int err;
1949
1950 BT_DBG("%s", hdev->name);
1951
1952 calltime = ktime_get();
1953
1954 /* Read the Intel version information to determine if the device
1955 * is in bootloader mode or if it already has operational firmware
1956 * loaded.
1957 */
1958 skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT);
1959 if (IS_ERR(skb)) {
1960 BT_ERR("%s: Reading Intel version information failed (%ld)",
1961 hdev->name, PTR_ERR(skb));
1962 return PTR_ERR(skb);
1963 }
1964
1965 if (skb->len != sizeof(*ver)) {
1966 BT_ERR("%s: Intel version event size mismatch", hdev->name);
1967 kfree_skb(skb);
1968 return -EILSEQ;
1969 }
1970
1971 ver = (struct intel_version *)skb->data;
cda0dd78
MH		 1972
1973 /* The hardware platform number has a fixed value of 0x37 and
1974 * for now only accept this single value.
1975 */
1976 if (ver->hw_platform != 0x37) {
1977 BT_ERR("%s: Unsupported Intel hardware platform (%u)",
1978 hdev->name, ver->hw_platform);
1979 kfree_skb(skb);
1980 return -EINVAL;
1981 }
1982
1983 /* At the moment only the hardware variant iBT 3.0 (LnP/SfP) is
1984 * supported by this firmware loading method. This check has been
1985 * put in place to ensure correct forward compatibility options
1986 * when newer hardware variants come along.
1987 */
1988 if (ver->hw_variant != 0x0b) {
1989 BT_ERR("%s: Unsupported Intel hardware variant (%u)",
1990 hdev->name, ver->hw_variant);
1991 kfree_skb(skb);
1992 return -EINVAL;
1993 }
1994
1995 btusb_intel_version_info(hdev, ver);
1996
1997 /* The firmware variant determines if the device is in bootloader
1998 * mode or is running operational firmware. The value 0x06 identifies
1999 * the bootloader and the value 0x23 identifies the operational
2000 * firmware.
2001 *
2002 * When the operational firmware is already present, then only
2003 * the check for valid Bluetooth device address is needed. This
2004 * determines if the device will be added as configured or
2005 * unconfigured controller.
2006 *
2007 * It is not possible to use the Secure Boot Parameters in this
2008 * case since that command is only available in bootloader mode.
2009 */
2010 if (ver->fw_variant == 0x23) {
2011 kfree_skb(skb);
2012 clear_bit(BTUSB_BOOTLOADER, &data->flags);
4185a0f5 2013 btintel_check_bdaddr(hdev);
cda0dd78
MH		 2014 return 0;
2015 }
2016
2017 /* If the device is not in bootloader mode, then the only possible
2018 * choice is to return an error and abort the device initialization.
2019 */
2020 if (ver->fw_variant != 0x06) {
2021 BT_ERR("%s: Unsupported Intel firmware variant (%u)",
2022 hdev->name, ver->fw_variant);
2023 kfree_skb(skb);
2024 return -ENODEV;
2025 }
2026
2027 kfree_skb(skb);
2028
2029 /* Read the secure boot parameters to identify the operating
2030 * details of the bootloader.
2031 */
2032 skb = __hci_cmd_sync(hdev, 0xfc0d, 0, NULL, HCI_INIT_TIMEOUT);
2033 if (IS_ERR(skb)) {
2034 BT_ERR("%s: Reading Intel boot parameters failed (%ld)",
2035 hdev->name, PTR_ERR(skb));
2036 return PTR_ERR(skb);
2037 }
2038
2039 if (skb->len != sizeof(*params)) {
2040 BT_ERR("%s: Intel boot parameters size mismatch", hdev->name);
2041 kfree_skb(skb);
2042 return -EILSEQ;
2043 }
2044
2045 params = (struct intel_boot_params *)skb->data;
cda0dd78
MH		 2046
2047 BT_INFO("%s: Device revision is %u", hdev->name,
2048 le16_to_cpu(params->dev_revid));
2049
2050 BT_INFO("%s: Secure boot is %s", hdev->name,
2051 params->secure_boot ? "enabled" : "disabled");
2052
2053 BT_INFO("%s: Minimum firmware build %u week %u %u", hdev->name,
2054 params->min_fw_build_nn, params->min_fw_build_cw,
2055 2000 + params->min_fw_build_yy);
2056
2057 /* It is required that every single firmware fragment is acknowledged
2058 * with a command complete event. If the boot parameters indicate
2059 * that this bootloader does not send them, then abort the setup.
2060 */
2061 if (params->limited_cce != 0x00) {
2062 BT_ERR("%s: Unsupported Intel firmware loading method (%u)",
2063 hdev->name, params->limited_cce);
2064 kfree_skb(skb);
2065 return -EINVAL;
2066 }
2067
2068 /* If the OTP has no valid Bluetooth device address, then there will
2069 * also be no valid address for the operational firmware.
2070 */
2071 if (!bacmp(&params->otp_bdaddr, BDADDR_ANY)) {
2072 BT_INFO("%s: No device address configured", hdev->name);
2073 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
2074 }
2075
2076 /* With this Intel bootloader only the hardware variant and device
2077 * revision information are used to select the right firmware.
2078 *
2079 * Currently this bootloader support is limited to hardware variant
2080 * iBT 3.0 (LnP/SfP) which is identified by the value 11 (0x0b).
2081 */
2082 snprintf(fwname, sizeof(fwname), "intel/ibt-11-%u.sfi",
2083 le16_to_cpu(params->dev_revid));
2084
2085 err = request_firmware(&fw, fwname, &hdev->dev);
2086 if (err < 0) {
2087 BT_ERR("%s: Failed to load Intel firmware file (%d)",
2088 hdev->name, err);
2089 kfree_skb(skb);
2090 return err;
2091 }
2092
2093 BT_INFO("%s: Found device firmware: %s", hdev->name, fwname);
2094
2095 kfree_skb(skb);
2096
2097 if (fw->size < 644) {
2098 BT_ERR("%s: Invalid size of firmware file (%zu)",
2099 hdev->name, fw->size);
2100 err = -EBADF;
2101 goto done;
2102 }
2103
2104 set_bit(BTUSB_DOWNLOADING, &data->flags);
2105
2106 /* Start the firmware download transaction with the Init fragment
2107 * represented by the 128 bytes of CSS header.
2108 */
2109 err = btusb_intel_secure_send(hdev, 0x00, 128, fw->data);
2110 if (err < 0) {
2111 BT_ERR("%s: Failed to send firmware header (%d)",
2112 hdev->name, err);
2113 goto done;
2114 }
2115
2116 /* Send the 256 bytes of public key information from the firmware
2117 * as the PKey fragment.
2118 */
2119 err = btusb_intel_secure_send(hdev, 0x03, 256, fw->data + 128);
2120 if (err < 0) {
2121 BT_ERR("%s: Failed to send firmware public key (%d)",
2122 hdev->name, err);
2123 goto done;
2124 }
2125
2126 /* Send the 256 bytes of signature information from the firmware
2127 * as the Sign fragment.
2128 */
2129 err = btusb_intel_secure_send(hdev, 0x02, 256, fw->data + 388);
2130 if (err < 0) {
2131 BT_ERR("%s: Failed to send firmware signature (%d)",
2132 hdev->name, err);
2133 goto done;
2134 }
2135
2136 fw_ptr = fw->data + 644;
2137
2138 while (fw_ptr - fw->data < fw->size) {
2139 struct hci_command_hdr *cmd = (void *)fw_ptr;
2140 u8 cmd_len;
2141
2142 cmd_len = sizeof(*cmd) + cmd->plen;
2143
2144 /* Send each command from the firmware data buffer as
2145 * a single Data fragment.
2146 */
2147 err = btusb_intel_secure_send(hdev, 0x01, cmd_len, fw_ptr);
2148 if (err < 0) {
2149 BT_ERR("%s: Failed to send firmware data (%d)",
2150 hdev->name, err);
2151 goto done;
2152 }
2153
2154 fw_ptr += cmd_len;
2155 }
2156
ce6bb929
MH		 2157 set_bit(BTUSB_FIRMWARE_LOADED, &data->flags);
2158
a087a98e
JH		 2159 BT_INFO("%s: Waiting for firmware download to complete", hdev->name);
2160
cda0dd78
MH		 2161 /* Before switching the device into operational mode and with that
2162 * booting the loaded firmware, wait for the bootloader notification
2163 * that all fragments have been successfully received.
2164 *
a087a98e
JH		 2165 * When the event processing receives the notification, then the
2166 * BTUSB_DOWNLOADING flag will be cleared.
2167 *
2168 * The firmware loading should not take longer than 5 seconds
2169 * and thus just timeout if that happens and fail the setup
2170 * of this device.
cda0dd78 2171 */
129a7693
JH		 2172 err = wait_on_bit_timeout(&data->flags, BTUSB_DOWNLOADING,
2173 TASK_INTERRUPTIBLE,
2174 msecs_to_jiffies(5000));
a087a98e
JH		 2175 if (err == 1) {
2176 BT_ERR("%s: Firmware loading interrupted", hdev->name);
2177 err = -EINTR;
2178 goto done;
2179 }
cda0dd78 2180
a087a98e
JH		 2181 if (err) {
2182 BT_ERR("%s: Firmware loading timeout", hdev->name);
2183 err = -ETIMEDOUT;
2184 goto done;
cda0dd78
MH		 2185 }
2186
2187 if (test_bit(BTUSB_FIRMWARE_FAILED, &data->flags)) {
2188 BT_ERR("%s: Firmware loading failed", hdev->name);
2189 err = -ENOEXEC;
2190 goto done;
2191 }
2192
2193 rettime = ktime_get();
2194 delta = ktime_sub(rettime, calltime);
2195 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2196
2197 BT_INFO("%s: Firmware loaded in %llu usecs", hdev->name, duration);
2198
2199done:
2200 release_firmware(fw);
2201
2202 if (err < 0)
2203 return err;
2204
2205 calltime = ktime_get();
2206
2207 set_bit(BTUSB_BOOTING, &data->flags);
2208
2209 skb = __hci_cmd_sync(hdev, 0xfc01, sizeof(reset_param), reset_param,
2210 HCI_INIT_TIMEOUT);
2211 if (IS_ERR(skb))
2212 return PTR_ERR(skb);
2213
2214 kfree_skb(skb);
2215
2216 /* The bootloader will not indicate when the device is ready. This
2217 * is done by the operational firmware sending bootup notification.
fad70972
JH		 2218 *
2219 * Booting into operational firmware should not take longer than
2220 * 1 second. However if that happens, then just fail the setup
2221 * since something went wrong.
cda0dd78 2222 */
fad70972 2223 BT_INFO("%s: Waiting for device to boot", hdev->name);
cda0dd78 2224
129a7693
JH		 2225 err = wait_on_bit_timeout(&data->flags, BTUSB_BOOTING,
2226 TASK_INTERRUPTIBLE,
2227 msecs_to_jiffies(1000));
cda0dd78 2228
fad70972
JH		 2229 if (err == 1) {
2230 BT_ERR("%s: Device boot interrupted", hdev->name);
2231 return -EINTR;
2232 }
cda0dd78 2233
fad70972
JH		 2234 if (err) {
2235 BT_ERR("%s: Device boot timeout", hdev->name);
2236 return -ETIMEDOUT;
cda0dd78
MH		 2237 }
2238
2239 rettime = ktime_get();
2240 delta = ktime_sub(rettime, calltime);
2241 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2242
2243 BT_INFO("%s: Device booted in %llu usecs", hdev->name, duration);
2244
2245 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2246
2247 return 0;
2248}
2249
385a768c
MH		 2250static void btusb_hw_error_intel(struct hci_dev *hdev, u8 code)
2251{
2252 struct sk_buff *skb;
2253 u8 type = 0x00;
2254
2255 BT_ERR("%s: Hardware error 0x%2.2x", hdev->name, code);
2256
2257 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
2258 if (IS_ERR(skb)) {
2259 BT_ERR("%s: Reset after hardware error failed (%ld)",
2260 hdev->name, PTR_ERR(skb));
2261 return;
2262 }
2263 kfree_skb(skb);
2264
2265 skb = __hci_cmd_sync(hdev, 0xfc22, 1, &type, HCI_INIT_TIMEOUT);
2266 if (IS_ERR(skb)) {
2267 BT_ERR("%s: Retrieving Intel exception info failed (%ld)",
2268 hdev->name, PTR_ERR(skb));
2269 return;
2270 }
2271
2272 if (skb->len != 13) {
2273 BT_ERR("%s: Exception info size mismatch", hdev->name);
2274 kfree_skb(skb);
2275 return;
385a768c
MH		 2276 }
2277
2278 BT_ERR("%s: Exception info %s", hdev->name, (char *)(skb->data + 1));
2279
2280 kfree_skb(skb);
2281}
2282
bfbd45e9
THJA		 2283static int btusb_shutdown_intel(struct hci_dev *hdev)
2284{
2285 struct sk_buff *skb;
2286 long ret;
2287
2288 /* Some platforms have an issue with BT LED when the interface is
2289 * down or BT radio is turned off, which takes 5 seconds to BT LED
2290 * goes off. This command turns off the BT LED immediately.
2291 */
2292 skb = __hci_cmd_sync(hdev, 0xfc3f, 0, NULL, HCI_INIT_TIMEOUT);
2293 if (IS_ERR(skb)) {
2294 ret = PTR_ERR(skb);
2295 BT_ERR("%s: turning off Intel device LED failed (%ld)",
2296 hdev->name, ret);
2297 return ret;
2298 }
2299 kfree_skb(skb);
2300
2301 return 0;
2302}
2303
ae8df494
AK		 2304static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
2305 const bdaddr_t *bdaddr)
2306{
2307 struct sk_buff *skb;
2308 u8 buf[8];
2309 long ret;
2310
2311 buf[0] = 0xfe;
2312 buf[1] = sizeof(bdaddr_t);
2313 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
2314
2315 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2316 if (IS_ERR(skb)) {
2317 ret = PTR_ERR(skb);
2318 BT_ERR("%s: changing Marvell device address failed (%ld)",
2319 hdev->name, ret);
2320 return ret;
2321 }
2322 kfree_skb(skb);
2323
2324 return 0;
2325}
2326
5859223e
TK		 2327static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
2328 const bdaddr_t *bdaddr)
2329{
2330 struct sk_buff *skb;
2331 u8 buf[10];
2332 long ret;
2333
2334 buf[0] = 0x01;
2335 buf[1] = 0x01;
2336 buf[2] = 0x00;
2337 buf[3] = sizeof(bdaddr_t);
2338 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
2339
2340 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2341 if (IS_ERR(skb)) {
2342 ret = PTR_ERR(skb);
2343 BT_ERR("%s: Change address command failed (%ld)",
2344 hdev->name, ret);
2345 return ret;
2346 }
2347 kfree_skb(skb);
2348
2349 return 0;
2350}
2351
3267c884
KBYT		 2352#define QCA_DFU_PACKET_LEN 4096
2353
2354#define QCA_GET_TARGET_VERSION 0x09
2355#define QCA_CHECK_STATUS 0x05
2356#define QCA_DFU_DOWNLOAD 0x01
2357
2358#define QCA_SYSCFG_UPDATED 0x40
2359#define QCA_PATCH_UPDATED 0x80
2360#define QCA_DFU_TIMEOUT 3000
2361
2362struct qca_version {
2363 __le32 rom_version;
2364 __le32 patch_version;
2365 __le32 ram_version;
2366 __le32 ref_clock;
2367 __u8 reserved[4];
2368} __packed;
2369
2370struct qca_rampatch_version {
2371 __le16 rom_version;
2372 __le16 patch_version;
2373} __packed;
2374
2375struct qca_device_info {
bf906b3d
KBYT		 2376 u32 rom_version;
2377 u8 rampatch_hdr; /* length of header in rampatch */
2378 u8 nvm_hdr; /* length of header in NVM */
2379 u8 ver_offset; /* offset of version structure in rampatch */
3267c884
KBYT		 2380};
2381
2382static const struct qca_device_info qca_devices_table[] = {
2383 { 0x00000100, 20, 4, 10 }, /* Rome 1.0 */
2384 { 0x00000101, 20, 4, 10 }, /* Rome 1.1 */
2385 { 0x00000201, 28, 4, 18 }, /* Rome 2.1 */
2386 { 0x00000300, 28, 4, 18 }, /* Rome 3.0 */
2387 { 0x00000302, 28, 4, 18 }, /* Rome 3.2 */
2388};
2389
2390static int btusb_qca_send_vendor_req(struct hci_dev *hdev, u8 request,
2391 void *data, u16 size)
2392{
2393 struct btusb_data *btdata = hci_get_drvdata(hdev);
2394 struct usb_device *udev = btdata->udev;
2395 int pipe, err;
2396 u8 *buf;
2397
2398 buf = kmalloc(size, GFP_KERNEL);
2399 if (!buf)
2400 return -ENOMEM;
2401
2402 /* Found some of USB hosts have IOT issues with ours so that we should
2403 * not wait until HCI layer is ready.
2404 */
2405 pipe = usb_rcvctrlpipe(udev, 0);
2406 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
2407 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
2408 if (err < 0) {
2409 BT_ERR("%s: Failed to access otp area (%d)", hdev->name, err);
2410 goto done;
2411 }
2412
2413 memcpy(data, buf, size);
2414
2415done:
2416 kfree(buf);
2417
2418 return err;
2419}
2420
2421static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
2422 const struct firmware *firmware,
2423 size_t hdr_size)
2424{
2425 struct btusb_data *btdata = hci_get_drvdata(hdev);
2426 struct usb_device *udev = btdata->udev;
2427 size_t count, size, sent = 0;
2428 int pipe, len, err;
2429 u8 *buf;
2430
2431 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
2432 if (!buf)
2433 return -ENOMEM;
2434
2435 count = firmware->size;
2436
2437 size = min_t(size_t, count, hdr_size);
2438 memcpy(buf, firmware->data, size);
2439
2440 /* USB patches should go down to controller through USB path
2441 * because binary format fits to go down through USB channel.
2442 * USB control path is for patching headers and USB bulk is for
2443 * patch body.
2444 */
2445 pipe = usb_sndctrlpipe(udev, 0);
2446 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
2447 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
2448 if (err < 0) {
2449 BT_ERR("%s: Failed to send headers (%d)", hdev->name, err);
2450 goto done;
2451 }
2452
2453 sent += size;
2454 count -= size;
2455
2456 while (count) {
2457 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
2458
2459 memcpy(buf, firmware->data + sent, size);
2460
2461 pipe = usb_sndbulkpipe(udev, 0x02);
2462 err = usb_bulk_msg(udev, pipe, buf, size, &len,
2463 QCA_DFU_TIMEOUT);
2464 if (err < 0) {
2465 BT_ERR("%s: Failed to send body at %zd of %zd (%d)",
2466 hdev->name, sent, firmware->size, err);
2467 break;
2468 }
2469
2470 if (size != len) {
2471 BT_ERR("%s: Failed to get bulk buffer", hdev->name);
2472 err = -EILSEQ;
2473 break;
2474 }
2475
2476 sent += size;
2477 count -= size;
2478 }
2479
2480done:
2481 kfree(buf);
2482 return err;
2483}
2484
2485static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
2486 struct qca_version *ver,
2487 const struct qca_device_info *info)
2488{
2489 struct qca_rampatch_version *rver;
2490 const struct firmware *fw;
bf906b3d
KBYT		 2491 u32 ver_rom, ver_patch;
2492 u16 rver_rom, rver_patch;
3267c884
KBYT		 2493 char fwname[64];
2494 int err;
2495
bf906b3d
KBYT		 2496 ver_rom = le32_to_cpu(ver->rom_version);
2497 ver_patch = le32_to_cpu(ver->patch_version);
2498
2499 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom);
3267c884
KBYT		 2500
2501 err = request_firmware(&fw, fwname, &hdev->dev);
2502 if (err) {
2503 BT_ERR("%s: failed to request rampatch file: %s (%d)",
2504 hdev->name, fwname, err);
2505 return err;
2506 }
2507
2508 BT_INFO("%s: using rampatch file: %s", hdev->name, fwname);
bf906b3d 2509
3267c884 2510 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
bf906b3d
KBYT		 2511 rver_rom = le16_to_cpu(rver->rom_version);
2512 rver_patch = le16_to_cpu(rver->patch_version);
2513
3267c884 2514 BT_INFO("%s: QCA: patch rome 0x%x build 0x%x, firmware rome 0x%x "
bf906b3d
KBYT		 2515 "build 0x%x", hdev->name, rver_rom, rver_patch, ver_rom,
2516 ver_patch);
3267c884 2517
bf906b3d 2518 if (rver_rom != ver_rom || rver_patch <= ver_patch) {
3267c884
KBYT		 2519 BT_ERR("%s: rampatch file version did not match with firmware",
2520 hdev->name);
2521 err = -EINVAL;
2522 goto done;
2523 }
2524
2525 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
2526
2527done:
2528 release_firmware(fw);
2529
2530 return err;
2531}
2532
2533static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
2534 struct qca_version *ver,
2535 const struct qca_device_info *info)
2536{
2537 const struct firmware *fw;
2538 char fwname[64];
2539 int err;
2540
2541 snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin",
2542 le32_to_cpu(ver->rom_version));
2543
2544 err = request_firmware(&fw, fwname, &hdev->dev);
2545 if (err) {
2546 BT_ERR("%s: failed to request NVM file: %s (%d)",
2547 hdev->name, fwname, err);
2548 return err;
2549 }
2550
2551 BT_INFO("%s: using NVM file: %s", hdev->name, fwname);
2552
2553 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
2554
2555 release_firmware(fw);
2556
2557 return err;
2558}
2559
2560static int btusb_setup_qca(struct hci_dev *hdev)
2561{
2562 const struct qca_device_info *info = NULL;
2563 struct qca_version ver;
bf906b3d 2564 u32 ver_rom;
3267c884
KBYT		 2565 u8 status;
2566 int i, err;
2567
2568 err = btusb_qca_send_vendor_req(hdev, QCA_GET_TARGET_VERSION, &ver,
eb50042f 2569 sizeof(ver));
3267c884
KBYT		 2570 if (err < 0)
2571 return err;
2572
bf906b3d 2573 ver_rom = le32_to_cpu(ver.rom_version);
3267c884 2574 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
bf906b3d 2575 if (ver_rom == qca_devices_table[i].rom_version)
3267c884
KBYT		 2576 info = &qca_devices_table[i];
2577 }
2578 if (!info) {
2579 BT_ERR("%s: don't support firmware rome 0x%x", hdev->name,
bf906b3d 2580 ver_rom);
3267c884
KBYT		 2581 return -ENODEV;
2582 }
2583
2584 err = btusb_qca_send_vendor_req(hdev, QCA_CHECK_STATUS, &status,
2585 sizeof(status));
2586 if (err < 0)
2587 return err;
2588
2589 if (!(status & QCA_PATCH_UPDATED)) {
2590 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
2591 if (err < 0)
2592 return err;
2593 }
2594
2595 if (!(status & QCA_SYSCFG_UPDATED)) {
2596 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
2597 if (err < 0)
2598 return err;
2599 }
2600
2601 return 0;
2602}
2603
5e23b923 2604static int btusb_probe(struct usb_interface *intf,
89e7533d 2605 const struct usb_device_id *id)
5e23b923
MH		 2606{
2607 struct usb_endpoint_descriptor *ep_desc;
2608 struct btusb_data *data;
2609 struct hci_dev *hdev;
2610 int i, err;
2611
2612 BT_DBG("intf %p id %p", intf, id);
2613
cfeb4145 2614 /* interface numbers are hardcoded in the spec */
5e23b923
MH		 2615 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
2616 return -ENODEV;
2617
2618 if (!id->driver_info) {
2619 const struct usb_device_id *match;
89e7533d 2620
5e23b923
MH		 2621 match = usb_match_id(intf, blacklist_table);
2622 if (match)
2623 id = match;
2624 }
2625
cfeb4145
MH		 2626 if (id->driver_info == BTUSB_IGNORE)
2627 return -ENODEV;
2628
2d25f8b4
SL		 2629 if (id->driver_info & BTUSB_ATH3012) {
2630 struct usb_device *udev = interface_to_usbdev(intf);
2631
2632 /* Old firmware would otherwise let ath3k driver load
2633 * patch and sysconfig files */
2634 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
2635 return -ENODEV;
2636 }
2637
98921dbd 2638 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
5e23b923
MH		 2639 if (!data)
2640 return -ENOMEM;
2641
2642 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2643 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2644
2645 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
2646 data->intr_ep = ep_desc;
2647 continue;
2648 }
2649
2650 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
2651 data->bulk_tx_ep = ep_desc;
2652 continue;
2653 }
2654
2655 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
2656 data->bulk_rx_ep = ep_desc;
2657 continue;
2658 }
2659 }
2660
98921dbd 2661 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
5e23b923 2662 return -ENODEV;
5e23b923 2663
893ba544
MH		 2664 if (id->driver_info & BTUSB_AMP) {
2665 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
2666 data->cmdreq = 0x2b;
2667 } else {
2668 data->cmdreq_type = USB_TYPE_CLASS;
2669 data->cmdreq = 0x00;
2670 }
7a9d4020 2671
5e23b923 2672 data->udev = interface_to_usbdev(intf);
5fbcd260 2673 data->intf = intf;
5e23b923 2674
5e23b923 2675 INIT_WORK(&data->work, btusb_work);
7bee549e 2676 INIT_WORK(&data->waker, btusb_waker);
803b5836
MH		 2677 init_usb_anchor(&data->deferred);
2678 init_usb_anchor(&data->tx_anchor);
7bee549e 2679 spin_lock_init(&data->txlock);
5e23b923 2680
5e23b923
MH		 2681 init_usb_anchor(&data->intr_anchor);
2682 init_usb_anchor(&data->bulk_anchor);
9bfa35fe 2683 init_usb_anchor(&data->isoc_anchor);
803b5836 2684 spin_lock_init(&data->rxlock);
5e23b923 2685
cda0dd78
MH		 2686 if (id->driver_info & BTUSB_INTEL_NEW) {
2687 data->recv_event = btusb_recv_event_intel;
2688 data->recv_bulk = btusb_recv_bulk_intel;
2689 set_bit(BTUSB_BOOTLOADER, &data->flags);
2690 } else {
2691 data->recv_event = hci_recv_frame;
2692 data->recv_bulk = btusb_recv_bulk;
2693 }
2cbd3f5c 2694
5e23b923 2695 hdev = hci_alloc_dev();
98921dbd 2696 if (!hdev)
5e23b923 2697 return -ENOMEM;
5e23b923 2698
c13854ce 2699 hdev->bus = HCI_USB;
155961e8 2700 hci_set_drvdata(hdev, data);
5e23b923 2701
893ba544
MH		 2702 if (id->driver_info & BTUSB_AMP)
2703 hdev->dev_type = HCI_AMP;
2704 else
2705 hdev->dev_type = HCI_BREDR;
2706
5e23b923
MH		 2707 data->hdev = hdev;
2708
2709 SET_HCIDEV_DEV(hdev, &intf->dev);
2710
9f8f962c
MH		 2711 hdev->open = btusb_open;
2712 hdev->close = btusb_close;
2713 hdev->flush = btusb_flush;
2714 hdev->send = btusb_send_frame;
2715 hdev->notify = btusb_notify;
2716
2717 if (id->driver_info & BTUSB_BCM92035)
2718 hdev->setup = btusb_setup_bcm92035;
5e23b923 2719
c2bfb100 2720#ifdef CONFIG_BT_HCIBTUSB_BCM
abbaf50e 2721 if (id->driver_info & BTUSB_BCM_PATCHRAM) {
c2bfb100 2722 hdev->setup = btbcm_setup_patchram;
1df1f591 2723 hdev->set_bdaddr = btbcm_set_bdaddr;
abbaf50e 2724 }
10d4c673 2725
941521e2 2726 if (id->driver_info & BTUSB_BCM_APPLE)
c2bfb100 2727 hdev->setup = btbcm_setup_apple;
c2bfb100 2728#endif
17b2772b 2729
cb8d6597 2730 if (id->driver_info & BTUSB_INTEL) {
dffd30ee 2731 hdev->setup = btusb_setup_intel;
bfbd45e9 2732 hdev->shutdown = btusb_shutdown_intel;
4185a0f5 2733 hdev->set_bdaddr = btintel_set_bdaddr;
c33fb9b4 2734 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
c1154842 2735 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
cb8d6597 2736 }
dffd30ee 2737
cda0dd78
MH		 2738 if (id->driver_info & BTUSB_INTEL_NEW) {
2739 hdev->send = btusb_send_frame_intel;
2740 hdev->setup = btusb_setup_intel_new;
385a768c 2741 hdev->hw_error = btusb_hw_error_intel;
4185a0f5 2742 hdev->set_bdaddr = btintel_set_bdaddr;
b970c5ba 2743 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
cda0dd78
MH		 2744 }
2745
ae8df494
AK		 2746 if (id->driver_info & BTUSB_MARVELL)
2747 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
2748
661cf88a
MH		 2749 if (id->driver_info & BTUSB_SWAVE) {
2750 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
d57dbe77 2751 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
661cf88a 2752 }
d57dbe77 2753
40df783d
MH		 2754 if (id->driver_info & BTUSB_INTEL_BOOT)
2755 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
2756
79f0c87d 2757 if (id->driver_info & BTUSB_ATH3012) {
5859223e 2758 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
3d50d51a 2759 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
79f0c87d
JP		 2760 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
2761 }
5859223e 2762
3267c884
KBYT		 2763 if (id->driver_info & BTUSB_QCA_ROME) {
2764 data->setup_on_usb = btusb_setup_qca;
2765 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
2766 }
2767
db33c77d 2768#ifdef CONFIG_BT_HCIBTUSB_RTL
a2698a9b 2769 if (id->driver_info & BTUSB_REALTEK)
db33c77d
CC		 2770 hdev->setup = btrtl_setup_realtek;
2771#endif
a2698a9b 2772
893ba544
MH		 2773 if (id->driver_info & BTUSB_AMP) {
2774 /* AMP controllers do not support SCO packets */
2775 data->isoc = NULL;
2776 } else {
2777 /* Interface numbers are hardcoded in the specification */
2778 data->isoc = usb_ifnum_to_if(data->udev, 1);
2779 }
9bfa35fe 2780
7a9d4020 2781 if (!reset)
a6c511c6 2782 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
cfeb4145
MH		 2783
2784 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
2785 if (!disable_scofix)
2786 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
2787 }
2788
9bfa35fe
MH		 2789 if (id->driver_info & BTUSB_BROKEN_ISOC)
2790 data->isoc = NULL;
2791
7a9d4020
MH		 2792 if (id->driver_info & BTUSB_DIGIANSWER) {
2793 data->cmdreq_type = USB_TYPE_VENDOR;
a6c511c6 2794 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
7a9d4020
MH		 2795 }
2796
2797 if (id->driver_info & BTUSB_CSR) {
2798 struct usb_device *udev = data->udev;
81cac64b 2799 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
7a9d4020
MH		 2800
2801 /* Old firmware would otherwise execute USB reset */
81cac64b 2802 if (bcdDevice < 0x117)
a6c511c6 2803 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
81cac64b
MH		 2804
2805 /* Fake CSR devices with broken commands */
2806 if (bcdDevice <= 0x100)
2807 hdev->setup = btusb_setup_csr;
49c989a0
JP		 2808
2809 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
7a9d4020
MH		 2810 }
2811
cfeb4145 2812 if (id->driver_info & BTUSB_SNIFFER) {
9bfa35fe 2813 struct usb_device *udev = data->udev;
cfeb4145 2814
7a9d4020 2815 /* New sniffer firmware has crippled HCI interface */
cfeb4145
MH		 2816 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
2817 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
2818 }
2819
3a5ef20c
MH		 2820 if (id->driver_info & BTUSB_INTEL_BOOT) {
2821 /* A bug in the bootloader causes that interrupt interface is
2822 * only enabled after receiving SetInterface(0, AltSetting=0).
2823 */
2824 err = usb_set_interface(data->udev, 0, 0);
2825 if (err < 0) {
2826 BT_ERR("failed to set interface 0, alt 0 %d", err);
2827 hci_free_dev(hdev);
2828 return err;
2829 }
2830 }
2831
9bfa35fe
MH		 2832 if (data->isoc) {
2833 err = usb_driver_claim_interface(&btusb_driver,
89e7533d 2834 data->isoc, data);
9bfa35fe
MH		 2835 if (err < 0) {
2836 hci_free_dev(hdev);
9bfa35fe
MH		 2837 return err;
2838 }
2839 }
2840
5e23b923
MH		 2841 err = hci_register_dev(hdev);
2842 if (err < 0) {
2843 hci_free_dev(hdev);
5e23b923
MH		 2844 return err;
2845 }
2846
2847 usb_set_intfdata(intf, data);
2848
2849 return 0;
2850}
2851
2852static void btusb_disconnect(struct usb_interface *intf)
2853{
2854 struct btusb_data *data = usb_get_intfdata(intf);
2855 struct hci_dev *hdev;
2856
2857 BT_DBG("intf %p", intf);
2858
2859 if (!data)
2860 return;
2861
2862 hdev = data->hdev;
5fbcd260
MH		 2863 usb_set_intfdata(data->intf, NULL);
2864
2865 if (data->isoc)
2866 usb_set_intfdata(data->isoc, NULL);
5e23b923
MH		 2867
2868 hci_unregister_dev(hdev);
2869
5fbcd260
MH		 2870 if (intf == data->isoc)
2871 usb_driver_release_interface(&btusb_driver, data->intf);
2872 else if (data->isoc)
2873 usb_driver_release_interface(&btusb_driver, data->isoc);
2874
5e23b923
MH		 2875 hci_free_dev(hdev);
2876}
2877
7bee549e 2878#ifdef CONFIG_PM
6a88adf2
MH		 2879static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
2880{
2881 struct btusb_data *data = usb_get_intfdata(intf);
2882
2883 BT_DBG("intf %p", intf);
2884
2885 if (data->suspend_count++)
2886 return 0;
2887
7bee549e 2888 spin_lock_irq(&data->txlock);
5b1b0b81 2889 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
7bee549e
ON		 2890 set_bit(BTUSB_SUSPENDING, &data->flags);
2891 spin_unlock_irq(&data->txlock);
2892 } else {
2893 spin_unlock_irq(&data->txlock);
2894 data->suspend_count--;
2895 return -EBUSY;
2896 }
2897
6a88adf2
MH		 2898 cancel_work_sync(&data->work);
2899
7bee549e 2900 btusb_stop_traffic(data);
6a88adf2
MH		 2901 usb_kill_anchored_urbs(&data->tx_anchor);
2902
6a88adf2
MH		 2903 return 0;
2904}
2905
7bee549e
ON		 2906static void play_deferred(struct btusb_data *data)
2907{
2908 struct urb *urb;
2909 int err;
2910
2911 while ((urb = usb_get_from_anchor(&data->deferred))) {
2912 err = usb_submit_urb(urb, GFP_ATOMIC);
2913 if (err < 0)
2914 break;
2915
2916 data->tx_in_flight++;
2917 }
2918 usb_scuttle_anchored_urbs(&data->deferred);
2919}
2920
6a88adf2
MH		 2921static int btusb_resume(struct usb_interface *intf)
2922{
2923 struct btusb_data *data = usb_get_intfdata(intf);
2924 struct hci_dev *hdev = data->hdev;
7bee549e 2925 int err = 0;
6a88adf2
MH		 2926
2927 BT_DBG("intf %p", intf);
2928
2929 if (--data->suspend_count)
2930 return 0;
2931
2932 if (!test_bit(HCI_RUNNING, &hdev->flags))
7bee549e 2933 goto done;
6a88adf2
MH		 2934
2935 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
2936 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
2937 if (err < 0) {
2938 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
7bee549e 2939 goto failed;
6a88adf2
MH		 2940 }
2941 }
2942
2943 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
43c2e57f
MH		 2944 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
2945 if (err < 0) {
6a88adf2 2946 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
7bee549e
ON		 2947 goto failed;
2948 }
2949
2950 btusb_submit_bulk_urb(hdev, GFP_NOIO);
6a88adf2
MH		 2951 }
2952
2953 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2954 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
2955 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2956 else
2957 btusb_submit_isoc_urb(hdev, GFP_NOIO);
2958 }
2959
7bee549e
ON		 2960 spin_lock_irq(&data->txlock);
2961 play_deferred(data);
2962 clear_bit(BTUSB_SUSPENDING, &data->flags);
2963 spin_unlock_irq(&data->txlock);
2964 schedule_work(&data->work);
2965
6a88adf2 2966 return 0;
7bee549e
ON		 2967
2968failed:
2969 usb_scuttle_anchored_urbs(&data->deferred);
2970done:
2971 spin_lock_irq(&data->txlock);
2972 clear_bit(BTUSB_SUSPENDING, &data->flags);
2973 spin_unlock_irq(&data->txlock);
2974
2975 return err;
6a88adf2 2976}
7bee549e 2977#endif
6a88adf2 2978
5e23b923
MH		 2979static struct usb_driver btusb_driver = {
2980 .name = "btusb",
2981 .probe = btusb_probe,
2982 .disconnect = btusb_disconnect,
7bee549e 2983#ifdef CONFIG_PM
6a88adf2
MH		 2984 .suspend = btusb_suspend,
2985 .resume = btusb_resume,
7bee549e 2986#endif
5e23b923 2987 .id_table = btusb_table,
7bee549e 2988 .supports_autosuspend = 1,
e1f12eb6 2989 .disable_hub_initiated_lpm = 1,
5e23b923
MH		 2990};
2991
93f1508c 2992module_usb_driver(btusb_driver);
5e23b923 2993
cfeb4145
MH		 2994module_param(disable_scofix, bool, 0644);
2995MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
2996
2997module_param(force_scofix, bool, 0644);
2998MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
2999
3000module_param(reset, bool, 0644);
3001MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
3002
5e23b923
MH		 3003MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
3004MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
3005MODULE_VERSION(VERSION);
3006MODULE_LICENSE("GPL");
Linux 6.x block layer and io_uring tree(s)