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mwifiex: use del_timer variant in interrupt context
[deliverable/linux.git] / drivers / bluetooth / btusb.c
CommitLineData
5e23b923
MH		 1/*
2 *
3 * Generic Bluetooth USB driver
4 *
9bfa35fe 5 * Copyright (C) 2005-2008 Marcel Holtmann <marcel@holtmann.org>
5e23b923
MH		 6 *
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 *
22 */
23
5e23b923 24#include <linux/module.h>
5e23b923 25#include <linux/usb.h>
dffd30ee 26#include <linux/firmware.h>
5e23b923
MH		 27
28#include <net/bluetooth/bluetooth.h>
29#include <net/bluetooth/hci_core.h>
30
cda0dd78 31#define VERSION "0.7"
cfeb4145 32
90ab5ee9
RR		 33static bool disable_scofix;
34static bool force_scofix;
7a9d4020 35
90ab5ee9 36static bool reset = 1;
cfeb4145
MH		 37
38static struct usb_driver btusb_driver;
39
40#define BTUSB_IGNORE 0x01
7a9d4020
MH		 41#define BTUSB_DIGIANSWER 0x02
42#define BTUSB_CSR 0x04
43#define BTUSB_SNIFFER 0x08
44#define BTUSB_BCM92035 0x10
45#define BTUSB_BROKEN_ISOC 0x20
46#define BTUSB_WRONG_SCO_MTU 0x40
2d25f8b4 47#define BTUSB_ATH3012 0x80
dffd30ee 48#define BTUSB_INTEL 0x100
40df783d
MH		 49#define BTUSB_INTEL_BOOT 0x200
50#define BTUSB_BCM_PATCHRAM 0x400
ae8df494 51#define BTUSB_MARVELL 0x800
4fcef8ed 52#define BTUSB_SWAVE 0x1000
cda0dd78 53#define BTUSB_INTEL_NEW 0x2000
893ba544 54#define BTUSB_AMP 0x4000
5e23b923 55
54265202 56static const struct usb_device_id btusb_table[] = {
5e23b923
MH		 57 /* Generic Bluetooth USB device */
58 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
59
893ba544
MH		 60 /* Generic Bluetooth AMP device */
61 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP },
62
1fa6535f
HR		 63 /* Apple-specific (Broadcom) devices */
64 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01) },
65
178c059e
CYC		 66 /* MediaTek MT76x0E */
67 { USB_DEVICE(0x0e8d, 0x763f) },
68
c510eae3 69 /* Broadcom SoftSailing reporting vendor specific */
2e8b5063 70 { USB_DEVICE(0x0a5c, 0x21e1) },
c510eae3 71
3cd01976
NI		 72 /* Apple MacBookPro 7,1 */
73 { USB_DEVICE(0x05ac, 0x8213) },
74
0a79f674
CL		 75 /* Apple iMac11,1 */
76 { USB_DEVICE(0x05ac, 0x8215) },
77
9c047157
NI		 78 /* Apple MacBookPro6,2 */
79 { USB_DEVICE(0x05ac, 0x8218) },
80
3e3ede7d
EH		 81 /* Apple MacBookAir3,1, MacBookAir3,2 */
82 { USB_DEVICE(0x05ac, 0x821b) },
83
a63b723d
PAVM		 84 /* Apple MacBookAir4,1 */
85 { USB_DEVICE(0x05ac, 0x821f) },
86
88d377b6
MAP		 87 /* Apple MacBookPro8,2 */
88 { USB_DEVICE(0x05ac, 0x821a) },
89
f78b6826
JK		 90 /* Apple MacMini5,1 */
91 { USB_DEVICE(0x05ac, 0x8281) },
92
cfeb4145 93 /* AVM BlueFRITZ! USB v2.0 */
4fcef8ed 94 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE },
cfeb4145
MH		 95
96 /* Bluetooth Ultraport Module from IBM */
97 { USB_DEVICE(0x04bf, 0x030a) },
98
99 /* ALPS Modules with non-standard id */
100 { USB_DEVICE(0x044e, 0x3001) },
101 { USB_DEVICE(0x044e, 0x3002) },
102
103 /* Ericsson with non-standard id */
104 { USB_DEVICE(0x0bdb, 0x1002) },
105
106 /* Canyon CN-BTU1 with HID interfaces */
7a9d4020 107 { USB_DEVICE(0x0c10, 0x0000) },
cfeb4145 108
d13431ca 109 /* Broadcom BCM20702A0 */
0b880062
AS		 110 { USB_DEVICE(0x0489, 0xe042) },
111 { USB_DEVICE(0x04ca, 0x2003) },
1ee3ff61 112 { USB_DEVICE(0x0b05, 0x17b5) },
38a172be 113 { USB_DEVICE(0x0b05, 0x17cb) },
d13431ca 114 { USB_DEVICE(0x413c, 0x8197) },
a86c02ea
F		 115 { USB_DEVICE(0x13d3, 0x3404),
116 .driver_info = BTUSB_BCM_PATCHRAM },
d13431ca 117
d049f4e5
MH		 118 /* Broadcom BCM20702B0 (Dynex/Insignia) */
119 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM },
120
98514036 121 /* Foxconn - Hon Hai */
6029ddc2
HS		 122 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01),
123 .driver_info = BTUSB_BCM_PATCHRAM },
98514036 124
8f0c304c
MD		 125 /* Lite-On Technology - Broadcom based */
126 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01),
127 .driver_info = BTUSB_BCM_PATCHRAM },
128
0b880062 129 /* Broadcom devices with vendor specific id */
10d4c673
PG		 130 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01),
131 .driver_info = BTUSB_BCM_PATCHRAM },
92c385f4 132
c2aef6e8 133 /* ASUSTek Computer - Broadcom based */
9a5abdaa
RD		 134 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01),
135 .driver_info = BTUSB_BCM_PATCHRAM },
c2aef6e8 136
5bcecf32
KB		 137 /* Belkin F8065bf - Broadcom based */
138 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01) },
139
9113bfd8
JK		 140 /* IMC Networks - Broadcom based */
141 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01) },
142
40df783d 143 /* Intel Bluetooth USB Bootloader (RAM module) */
d92f2df0
MH		 144 { USB_DEVICE(0x8087, 0x0a5a),
145 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
40df783d 146
5e23b923
MH		 147 { } /* Terminating entry */
148};
149
150MODULE_DEVICE_TABLE(usb, btusb_table);
151
54265202 152static const struct usb_device_id blacklist_table[] = {
cfeb4145
MH		 153 /* CSR BlueCore devices */
154 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
155
156 /* Broadcom BCM2033 without firmware */
157 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
158
be93112a 159 /* Atheros 3011 with sflash firmware */
0b880062
AS		 160 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
161 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
2eeff0b4 162 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE },
0b880062 163 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
be93112a 164 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
6eda541d 165 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
2a7bcccc 166 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
be93112a 167
509e7861
CYC		 168 /* Atheros AR9285 Malbec with sflash firmware */
169 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
170
d9f51b51 171 /* Atheros 3012 with sflash firmware */
0b880062
AS		 172 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
173 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
174 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
175 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
176 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
4b552bc9 177 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
0b880062
AS		 178 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
179 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
180 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
181 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
1fb4e09a 182 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
0b880062
AS		 183 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
184 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
134d3b35 185 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
0b880062
AS		 186 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
187 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
89d2975f 188 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
a735f9e2 189 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
d66629c1 190 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
2d25f8b4 191 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
94a32d10 192 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
07c0ea87 193 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
b131237c 194 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
1e56f1eb 195 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
0b880062 196 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
ebaf5795 197 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
0b880062 198 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
ac71311e 199 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
0a3658cc 200 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
0b880062
AS		 201 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
202 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
eed307e2 203 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
5b77a1f3 204 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
3bb30a7c 205 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
033efa92 206 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
fa2f1394 207 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
d9f51b51 208
e9036e33
CYC		 209 /* Atheros AR5BBU12 with sflash firmware */
210 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
211
85d59726 212 /* Atheros AR5BBU12 with sflash firmware */
bc21fde2 213 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
0b880062 214 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
85d59726 215
cfeb4145 216 /* Broadcom BCM2035 */
7a9d4020 217 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
0b880062
AS		 218 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
219 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 220
221 /* Broadcom BCM2045 */
7a9d4020
MH		 222 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
223 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
bdbef3d6 224
cfeb4145 225 /* IBM/Lenovo ThinkPad with Broadcom chip */
7a9d4020
MH		 226 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
227 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 228
229 /* HP laptop with Broadcom chip */
7a9d4020 230 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 231
232 /* Dell laptop with Broadcom chip */
7a9d4020 233 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 234
5ddd4a60 235 /* Dell Wireless 370 and 410 devices */
7a9d4020 236 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
5ddd4a60 237 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 238
7a9d4020
MH		 239 /* Belkin F8T012 and F8T013 devices */
240 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
241 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 242
5ddd4a60
MH		 243 /* Asus WL-BTD202 device */
244 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
245
246 /* Kensington Bluetooth USB adapter */
247 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
248
cfeb4145
MH		 249 /* RTX Telecom based adapters with buggy SCO support */
250 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
251 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
252
253 /* CONWISE Technology based adapters with buggy SCO support */
254 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
255
4fcef8ed
MH		 256 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
257 { USB_DEVICE(0x1300, 0x0001), .driver_info = BTUSB_SWAVE },
258
cfeb4145
MH		 259 /* Digianswer devices */
260 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
261 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
262
263 /* CSR BlueCore Bluetooth Sniffer */
4f64fa80
MH		 264 { USB_DEVICE(0x0a12, 0x0002),
265 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
cfeb4145
MH		 266
267 /* Frontline ComProbe Bluetooth Sniffer */
4f64fa80
MH		 268 { USB_DEVICE(0x16d3, 0x0002),
269 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
cfeb4145 270
cb1ee89f
MH		 271 /* Marvell Bluetooth devices */
272 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
273 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
274
d0ac9eb7 275 /* Intel Bluetooth devices */
407550fe 276 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
dffd30ee 277 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
ef4e5e4a 278 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL },
cda0dd78 279 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_NEW },
dffd30ee 280
d0ac9eb7
MH		 281 /* Other Intel Bluetooth devices */
282 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
283 .driver_info = BTUSB_IGNORE },
ae8df494 284
5e23b923
MH		 285 { } /* Terminating entry */
286};
287
9bfa35fe
MH		 288#define BTUSB_MAX_ISOC_FRAMES 10
289
5e23b923
MH		 290#define BTUSB_INTR_RUNNING 0
291#define BTUSB_BULK_RUNNING 1
9bfa35fe 292#define BTUSB_ISOC_RUNNING 2
7bee549e 293#define BTUSB_SUSPENDING 3
08b8b6c4 294#define BTUSB_DID_ISO_RESUME 4
cda0dd78
MH		 295#define BTUSB_BOOTLOADER 5
296#define BTUSB_DOWNLOADING 6
ce6bb929 297#define BTUSB_FIRMWARE_LOADED 7
cda0dd78 298#define BTUSB_FIRMWARE_FAILED 8
ce6bb929 299#define BTUSB_BOOTING 9
5e23b923
MH		 300
301struct btusb_data {
302 struct hci_dev *hdev;
303 struct usb_device *udev;
5fbcd260 304 struct usb_interface *intf;
9bfa35fe 305 struct usb_interface *isoc;
5e23b923 306
5e23b923
MH		 307 unsigned long flags;
308
309 struct work_struct work;
7bee549e 310 struct work_struct waker;
5e23b923 311
803b5836 312 struct usb_anchor deferred;
5e23b923 313 struct usb_anchor tx_anchor;
803b5836
MH		 314 int tx_in_flight;
315 spinlock_t txlock;
316
5e23b923
MH		 317 struct usb_anchor intr_anchor;
318 struct usb_anchor bulk_anchor;
9bfa35fe 319 struct usb_anchor isoc_anchor;
803b5836
MH		 320 spinlock_t rxlock;
321
322 struct sk_buff *evt_skb;
323 struct sk_buff *acl_skb;
324 struct sk_buff *sco_skb;
5e23b923
MH		 325
326 struct usb_endpoint_descriptor *intr_ep;
327 struct usb_endpoint_descriptor *bulk_tx_ep;
328 struct usb_endpoint_descriptor *bulk_rx_ep;
9bfa35fe
MH		 329 struct usb_endpoint_descriptor *isoc_tx_ep;
330 struct usb_endpoint_descriptor *isoc_rx_ep;
331
7a9d4020 332 __u8 cmdreq_type;
893ba544 333 __u8 cmdreq;
7a9d4020 334
43c2e57f 335 unsigned int sco_num;
9bfa35fe 336 int isoc_altsetting;
6a88adf2 337 int suspend_count;
2cbd3f5c 338
97307f51 339 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
2cbd3f5c 340 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
5e23b923
MH		 341};
342
803b5836
MH		 343static inline void btusb_free_frags(struct btusb_data *data)
344{
345 unsigned long flags;
346
347 spin_lock_irqsave(&data->rxlock, flags);
348
349 kfree_skb(data->evt_skb);
350 data->evt_skb = NULL;
351
352 kfree_skb(data->acl_skb);
353 data->acl_skb = NULL;
354
355 kfree_skb(data->sco_skb);
356 data->sco_skb = NULL;
357
358 spin_unlock_irqrestore(&data->rxlock, flags);
359}
360
1ffa4ad0
MH		 361static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
362{
803b5836
MH		 363 struct sk_buff *skb;
364 int err = 0;
365
366 spin_lock(&data->rxlock);
367 skb = data->evt_skb;
368
369 while (count) {
370 int len;
371
372 if (!skb) {
373 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
374 if (!skb) {
375 err = -ENOMEM;
376 break;
377 }
378
379 bt_cb(skb)->pkt_type = HCI_EVENT_PKT;
380 bt_cb(skb)->expect = HCI_EVENT_HDR_SIZE;
381 }
382
383 len = min_t(uint, bt_cb(skb)->expect, count);
384 memcpy(skb_put(skb, len), buffer, len);
385
386 count -= len;
387 buffer += len;
388 bt_cb(skb)->expect -= len;
389
390 if (skb->len == HCI_EVENT_HDR_SIZE) {
391 /* Complete event header */
392 bt_cb(skb)->expect = hci_event_hdr(skb)->plen;
393
394 if (skb_tailroom(skb) < bt_cb(skb)->expect) {
395 kfree_skb(skb);
396 skb = NULL;
397
398 err = -EILSEQ;
399 break;
400 }
401 }
402
403 if (bt_cb(skb)->expect == 0) {
404 /* Complete frame */
97307f51 405 data->recv_event(data->hdev, skb);
803b5836
MH		 406 skb = NULL;
407 }
408 }
409
410 data->evt_skb = skb;
411 spin_unlock(&data->rxlock);
412
413 return err;
1ffa4ad0
MH		 414}
415
416static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
417{
803b5836
MH		 418 struct sk_buff *skb;
419 int err = 0;
420
421 spin_lock(&data->rxlock);
422 skb = data->acl_skb;
423
424 while (count) {
425 int len;
426
427 if (!skb) {
428 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
429 if (!skb) {
430 err = -ENOMEM;
431 break;
432 }
433
434 bt_cb(skb)->pkt_type = HCI_ACLDATA_PKT;
435 bt_cb(skb)->expect = HCI_ACL_HDR_SIZE;
436 }
437
438 len = min_t(uint, bt_cb(skb)->expect, count);
439 memcpy(skb_put(skb, len), buffer, len);
440
441 count -= len;
442 buffer += len;
443 bt_cb(skb)->expect -= len;
444
445 if (skb->len == HCI_ACL_HDR_SIZE) {
446 __le16 dlen = hci_acl_hdr(skb)->dlen;
447
448 /* Complete ACL header */
449 bt_cb(skb)->expect = __le16_to_cpu(dlen);
450
451 if (skb_tailroom(skb) < bt_cb(skb)->expect) {
452 kfree_skb(skb);
453 skb = NULL;
454
455 err = -EILSEQ;
456 break;
457 }
458 }
459
460 if (bt_cb(skb)->expect == 0) {
461 /* Complete frame */
462 hci_recv_frame(data->hdev, skb);
463 skb = NULL;
464 }
465 }
466
467 data->acl_skb = skb;
468 spin_unlock(&data->rxlock);
469
470 return err;
1ffa4ad0
MH		 471}
472
473static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
474{
803b5836
MH		 475 struct sk_buff *skb;
476 int err = 0;
477
478 spin_lock(&data->rxlock);
479 skb = data->sco_skb;
480
481 while (count) {
482 int len;
483
484 if (!skb) {
485 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
486 if (!skb) {
487 err = -ENOMEM;
488 break;
489 }
490
491 bt_cb(skb)->pkt_type = HCI_SCODATA_PKT;
492 bt_cb(skb)->expect = HCI_SCO_HDR_SIZE;
493 }
494
495 len = min_t(uint, bt_cb(skb)->expect, count);
496 memcpy(skb_put(skb, len), buffer, len);
497
498 count -= len;
499 buffer += len;
500 bt_cb(skb)->expect -= len;
501
502 if (skb->len == HCI_SCO_HDR_SIZE) {
503 /* Complete SCO header */
504 bt_cb(skb)->expect = hci_sco_hdr(skb)->dlen;
505
506 if (skb_tailroom(skb) < bt_cb(skb)->expect) {
507 kfree_skb(skb);
508 skb = NULL;
509
510 err = -EILSEQ;
511 break;
512 }
513 }
514
515 if (bt_cb(skb)->expect == 0) {
516 /* Complete frame */
517 hci_recv_frame(data->hdev, skb);
518 skb = NULL;
519 }
520 }
521
522 data->sco_skb = skb;
523 spin_unlock(&data->rxlock);
524
525 return err;
1ffa4ad0
MH		 526}
527
5e23b923
MH		 528static void btusb_intr_complete(struct urb *urb)
529{
530 struct hci_dev *hdev = urb->context;
155961e8 531 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 532 int err;
533
89e7533d
MH		 534 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
535 urb->actual_length);
5e23b923
MH		 536
537 if (!test_bit(HCI_RUNNING, &hdev->flags))
538 return;
539
540 if (urb->status == 0) {
9bfa35fe
MH		 541 hdev->stat.byte_rx += urb->actual_length;
542
1ffa4ad0
MH		 543 if (btusb_recv_intr(data, urb->transfer_buffer,
544 urb->actual_length) < 0) {
5e23b923
MH		 545 BT_ERR("%s corrupted event packet", hdev->name);
546 hdev->stat.err_rx++;
547 }
85560c4a
CC		 548 } else if (urb->status == -ENOENT) {
549 /* Avoid suspend failed when usb_kill_urb */
550 return;
5e23b923
MH		 551 }
552
553 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
554 return;
555
7bee549e 556 usb_mark_last_busy(data->udev);
5e23b923
MH		 557 usb_anchor_urb(urb, &data->intr_anchor);
558
559 err = usb_submit_urb(urb, GFP_ATOMIC);
560 if (err < 0) {
4935f1c1
PB		 561 /* -EPERM: urb is being killed;
562 * -ENODEV: device got disconnected */
563 if (err != -EPERM && err != -ENODEV)
61faddf6 564 BT_ERR("%s urb %p failed to resubmit (%d)",
89e7533d 565 hdev->name, urb, -err);
5e23b923
MH		 566 usb_unanchor_urb(urb);
567 }
568}
569
2eda66f4 570static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
5e23b923 571{
155961e8 572 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 573 struct urb *urb;
574 unsigned char *buf;
575 unsigned int pipe;
576 int err, size;
577
578 BT_DBG("%s", hdev->name);
579
9bfa35fe
MH		 580 if (!data->intr_ep)
581 return -ENODEV;
582
2eda66f4 583 urb = usb_alloc_urb(0, mem_flags);
5e23b923
MH		 584 if (!urb)
585 return -ENOMEM;
586
587 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
588
2eda66f4 589 buf = kmalloc(size, mem_flags);
5e23b923
MH		 590 if (!buf) {
591 usb_free_urb(urb);
592 return -ENOMEM;
593 }
594
595 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
596
597 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
89e7533d 598 btusb_intr_complete, hdev, data->intr_ep->bInterval);
5e23b923
MH		 599
600 urb->transfer_flags |= URB_FREE_BUFFER;
601
602 usb_anchor_urb(urb, &data->intr_anchor);
603
2eda66f4 604 err = usb_submit_urb(urb, mem_flags);
5e23b923 605 if (err < 0) {
d4b8d1c9
PB		 606 if (err != -EPERM && err != -ENODEV)
607 BT_ERR("%s urb %p submission failed (%d)",
89e7533d 608 hdev->name, urb, -err);
5e23b923 609 usb_unanchor_urb(urb);
5e23b923
MH		 610 }
611
612 usb_free_urb(urb);
613
614 return err;
615}
616
617static void btusb_bulk_complete(struct urb *urb)
618{
619 struct hci_dev *hdev = urb->context;
155961e8 620 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 621 int err;
622
89e7533d
MH		 623 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
624 urb->actual_length);
5e23b923
MH		 625
626 if (!test_bit(HCI_RUNNING, &hdev->flags))
627 return;
628
629 if (urb->status == 0) {
9bfa35fe
MH		 630 hdev->stat.byte_rx += urb->actual_length;
631
2cbd3f5c 632 if (data->recv_bulk(data, urb->transfer_buffer,
1ffa4ad0 633 urb->actual_length) < 0) {
5e23b923
MH		 634 BT_ERR("%s corrupted ACL packet", hdev->name);
635 hdev->stat.err_rx++;
636 }
85560c4a
CC		 637 } else if (urb->status == -ENOENT) {
638 /* Avoid suspend failed when usb_kill_urb */
639 return;
5e23b923
MH		 640 }
641
642 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
643 return;
644
645 usb_anchor_urb(urb, &data->bulk_anchor);
652fd781 646 usb_mark_last_busy(data->udev);
5e23b923
MH		 647
648 err = usb_submit_urb(urb, GFP_ATOMIC);
649 if (err < 0) {
4935f1c1
PB		 650 /* -EPERM: urb is being killed;
651 * -ENODEV: device got disconnected */
652 if (err != -EPERM && err != -ENODEV)
61faddf6 653 BT_ERR("%s urb %p failed to resubmit (%d)",
89e7533d 654 hdev->name, urb, -err);
5e23b923
MH		 655 usb_unanchor_urb(urb);
656 }
657}
658
2eda66f4 659static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
5e23b923 660{
155961e8 661 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 662 struct urb *urb;
663 unsigned char *buf;
664 unsigned int pipe;
290ba200 665 int err, size = HCI_MAX_FRAME_SIZE;
5e23b923
MH		 666
667 BT_DBG("%s", hdev->name);
668
9bfa35fe
MH		 669 if (!data->bulk_rx_ep)
670 return -ENODEV;
671
2eda66f4 672 urb = usb_alloc_urb(0, mem_flags);
5e23b923
MH		 673 if (!urb)
674 return -ENOMEM;
675
2eda66f4 676 buf = kmalloc(size, mem_flags);
5e23b923
MH		 677 if (!buf) {
678 usb_free_urb(urb);
679 return -ENOMEM;
680 }
681
682 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
683
89e7533d
MH		 684 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
685 btusb_bulk_complete, hdev);
5e23b923
MH		 686
687 urb->transfer_flags |= URB_FREE_BUFFER;
688
7bee549e 689 usb_mark_last_busy(data->udev);
5e23b923
MH		 690 usb_anchor_urb(urb, &data->bulk_anchor);
691
2eda66f4 692 err = usb_submit_urb(urb, mem_flags);
5e23b923 693 if (err < 0) {
d4b8d1c9
PB		 694 if (err != -EPERM && err != -ENODEV)
695 BT_ERR("%s urb %p submission failed (%d)",
89e7533d 696 hdev->name, urb, -err);
5e23b923 697 usb_unanchor_urb(urb);
5e23b923
MH		 698 }
699
700 usb_free_urb(urb);
701
702 return err;
703}
704
9bfa35fe
MH		 705static void btusb_isoc_complete(struct urb *urb)
706{
707 struct hci_dev *hdev = urb->context;
155961e8 708 struct btusb_data *data = hci_get_drvdata(hdev);
9bfa35fe
MH		 709 int i, err;
710
89e7533d
MH		 711 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
712 urb->actual_length);
9bfa35fe
MH		 713
714 if (!test_bit(HCI_RUNNING, &hdev->flags))
715 return;
716
717 if (urb->status == 0) {
718 for (i = 0; i < urb->number_of_packets; i++) {
719 unsigned int offset = urb->iso_frame_desc[i].offset;
720 unsigned int length = urb->iso_frame_desc[i].actual_length;
721
722 if (urb->iso_frame_desc[i].status)
723 continue;
724
725 hdev->stat.byte_rx += length;
726
1ffa4ad0
MH		 727 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
728 length) < 0) {
9bfa35fe
MH		 729 BT_ERR("%s corrupted SCO packet", hdev->name);
730 hdev->stat.err_rx++;
731 }
732 }
85560c4a
CC		 733 } else if (urb->status == -ENOENT) {
734 /* Avoid suspend failed when usb_kill_urb */
735 return;
9bfa35fe
MH		 736 }
737
738 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
739 return;
740
741 usb_anchor_urb(urb, &data->isoc_anchor);
742
743 err = usb_submit_urb(urb, GFP_ATOMIC);
744 if (err < 0) {
4935f1c1
PB		 745 /* -EPERM: urb is being killed;
746 * -ENODEV: device got disconnected */
747 if (err != -EPERM && err != -ENODEV)
61faddf6 748 BT_ERR("%s urb %p failed to resubmit (%d)",
89e7533d 749 hdev->name, urb, -err);
9bfa35fe
MH		 750 usb_unanchor_urb(urb);
751 }
752}
753
42b16b3f 754static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
9bfa35fe
MH		 755{
756 int i, offset = 0;
757
758 BT_DBG("len %d mtu %d", len, mtu);
759
760 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
761 i++, offset += mtu, len -= mtu) {
762 urb->iso_frame_desc[i].offset = offset;
763 urb->iso_frame_desc[i].length = mtu;
764 }
765
766 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
767 urb->iso_frame_desc[i].offset = offset;
768 urb->iso_frame_desc[i].length = len;
769 i++;
770 }
771
772 urb->number_of_packets = i;
773}
774
2eda66f4 775static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
9bfa35fe 776{
155961e8 777 struct btusb_data *data = hci_get_drvdata(hdev);
9bfa35fe
MH		 778 struct urb *urb;
779 unsigned char *buf;
780 unsigned int pipe;
781 int err, size;
782
783 BT_DBG("%s", hdev->name);
784
785 if (!data->isoc_rx_ep)
786 return -ENODEV;
787
2eda66f4 788 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
9bfa35fe
MH		 789 if (!urb)
790 return -ENOMEM;
791
792 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
793 BTUSB_MAX_ISOC_FRAMES;
794
2eda66f4 795 buf = kmalloc(size, mem_flags);
9bfa35fe
MH		 796 if (!buf) {
797 usb_free_urb(urb);
798 return -ENOMEM;
799 }
800
801 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
802
fa0fb93f 803 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
89e7533d 804 hdev, data->isoc_rx_ep->bInterval);
9bfa35fe 805
89e7533d 806 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
9bfa35fe
MH		 807
808 __fill_isoc_descriptor(urb, size,
89e7533d 809 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
9bfa35fe
MH		 810
811 usb_anchor_urb(urb, &data->isoc_anchor);
812
2eda66f4 813 err = usb_submit_urb(urb, mem_flags);
9bfa35fe 814 if (err < 0) {
d4b8d1c9
PB		 815 if (err != -EPERM && err != -ENODEV)
816 BT_ERR("%s urb %p submission failed (%d)",
89e7533d 817 hdev->name, urb, -err);
9bfa35fe 818 usb_unanchor_urb(urb);
9bfa35fe
MH		 819 }
820
821 usb_free_urb(urb);
822
823 return err;
824}
825
5e23b923 826static void btusb_tx_complete(struct urb *urb)
7bee549e
ON		 827{
828 struct sk_buff *skb = urb->context;
89e7533d 829 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
155961e8 830 struct btusb_data *data = hci_get_drvdata(hdev);
7bee549e 831
89e7533d
MH		 832 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
833 urb->actual_length);
7bee549e
ON		 834
835 if (!test_bit(HCI_RUNNING, &hdev->flags))
836 goto done;
837
838 if (!urb->status)
839 hdev->stat.byte_tx += urb->transfer_buffer_length;
840 else
841 hdev->stat.err_tx++;
842
843done:
844 spin_lock(&data->txlock);
845 data->tx_in_flight--;
846 spin_unlock(&data->txlock);
847
848 kfree(urb->setup_packet);
849
850 kfree_skb(skb);
851}
852
853static void btusb_isoc_tx_complete(struct urb *urb)
5e23b923
MH		 854{
855 struct sk_buff *skb = urb->context;
89e7533d 856 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
5e23b923 857
89e7533d
MH		 858 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
859 urb->actual_length);
5e23b923
MH		 860
861 if (!test_bit(HCI_RUNNING, &hdev->flags))
862 goto done;
863
864 if (!urb->status)
865 hdev->stat.byte_tx += urb->transfer_buffer_length;
866 else
867 hdev->stat.err_tx++;
868
869done:
870 kfree(urb->setup_packet);
871
872 kfree_skb(skb);
873}
874
875static int btusb_open(struct hci_dev *hdev)
876{
155961e8 877 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 878 int err;
879
880 BT_DBG("%s", hdev->name);
881
7bee549e
ON		 882 err = usb_autopm_get_interface(data->intf);
883 if (err < 0)
884 return err;
885
886 data->intf->needs_remote_wakeup = 1;
887
5e23b923 888 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
7bee549e 889 goto done;
5e23b923
MH		 890
891 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
7bee549e 892 goto done;
5e23b923 893
2eda66f4 894 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
43c2e57f
MH		 895 if (err < 0)
896 goto failed;
897
898 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
5e23b923 899 if (err < 0) {
43c2e57f
MH		 900 usb_kill_anchored_urbs(&data->intr_anchor);
901 goto failed;
5e23b923
MH		 902 }
903
43c2e57f
MH		 904 set_bit(BTUSB_BULK_RUNNING, &data->flags);
905 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
906
7bee549e
ON		 907done:
908 usb_autopm_put_interface(data->intf);
43c2e57f
MH		 909 return 0;
910
911failed:
912 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
913 clear_bit(HCI_RUNNING, &hdev->flags);
7bee549e 914 usb_autopm_put_interface(data->intf);
5e23b923
MH		 915 return err;
916}
917
7bee549e
ON		 918static void btusb_stop_traffic(struct btusb_data *data)
919{
920 usb_kill_anchored_urbs(&data->intr_anchor);
921 usb_kill_anchored_urbs(&data->bulk_anchor);
922 usb_kill_anchored_urbs(&data->isoc_anchor);
923}
924
5e23b923
MH		 925static int btusb_close(struct hci_dev *hdev)
926{
155961e8 927 struct btusb_data *data = hci_get_drvdata(hdev);
7bee549e 928 int err;
5e23b923
MH		 929
930 BT_DBG("%s", hdev->name);
931
932 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
933 return 0;
934
e8c3c3d2 935 cancel_work_sync(&data->work);
404291ac 936 cancel_work_sync(&data->waker);
e8c3c3d2 937
9bfa35fe 938 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
5e23b923 939 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
5e23b923 940 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
7bee549e
ON		 941
942 btusb_stop_traffic(data);
803b5836
MH		 943 btusb_free_frags(data);
944
7bee549e
ON		 945 err = usb_autopm_get_interface(data->intf);
946 if (err < 0)
7b8e2c1d 947 goto failed;
7bee549e
ON		 948
949 data->intf->needs_remote_wakeup = 0;
950 usb_autopm_put_interface(data->intf);
5e23b923 951
7b8e2c1d
ON		 952failed:
953 usb_scuttle_anchored_urbs(&data->deferred);
5e23b923
MH		 954 return 0;
955}
956
957static int btusb_flush(struct hci_dev *hdev)
958{
155961e8 959 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 960
961 BT_DBG("%s", hdev->name);
962
963 usb_kill_anchored_urbs(&data->tx_anchor);
803b5836 964 btusb_free_frags(data);
5e23b923
MH		 965
966 return 0;
967}
968
047b2ec8 969static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
5e23b923 970{
155961e8 971 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 972 struct usb_ctrlrequest *dr;
973 struct urb *urb;
974 unsigned int pipe;
5e23b923 975
047b2ec8
MH		 976 urb = usb_alloc_urb(0, GFP_KERNEL);
977 if (!urb)
978 return ERR_PTR(-ENOMEM);
5e23b923 979
047b2ec8
MH		 980 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
981 if (!dr) {
982 usb_free_urb(urb);
983 return ERR_PTR(-ENOMEM);
984 }
5e23b923 985
047b2ec8 986 dr->bRequestType = data->cmdreq_type;
893ba544 987 dr->bRequest = data->cmdreq;
047b2ec8
MH		 988 dr->wIndex = 0;
989 dr->wValue = 0;
990 dr->wLength = __cpu_to_le16(skb->len);
7bd8f09f 991
047b2ec8 992 pipe = usb_sndctrlpipe(data->udev, 0x00);
5e23b923 993
89e7533d 994 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
047b2ec8 995 skb->data, skb->len, btusb_tx_complete, skb);
5e23b923 996
89e7533d 997 skb->dev = (void *)hdev;
5e23b923 998
047b2ec8
MH		 999 return urb;
1000}
5e23b923 1001
047b2ec8
MH		 1002static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
1003{
1004 struct btusb_data *data = hci_get_drvdata(hdev);
1005 struct urb *urb;
1006 unsigned int pipe;
5e23b923 1007
047b2ec8
MH		 1008 if (!data->bulk_tx_ep)
1009 return ERR_PTR(-ENODEV);
9bfa35fe 1010
047b2ec8
MH		 1011 urb = usb_alloc_urb(0, GFP_KERNEL);
1012 if (!urb)
1013 return ERR_PTR(-ENOMEM);
5e23b923 1014
047b2ec8 1015 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
5e23b923 1016
047b2ec8
MH		 1017 usb_fill_bulk_urb(urb, data->udev, pipe,
1018 skb->data, skb->len, btusb_tx_complete, skb);
5e23b923 1019
89e7533d 1020 skb->dev = (void *)hdev;
5e23b923 1021
047b2ec8
MH		 1022 return urb;
1023}
9bfa35fe 1024
047b2ec8
MH		 1025static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
1026{
1027 struct btusb_data *data = hci_get_drvdata(hdev);
1028 struct urb *urb;
1029 unsigned int pipe;
9bfa35fe 1030
047b2ec8
MH		 1031 if (!data->isoc_tx_ep)
1032 return ERR_PTR(-ENODEV);
9bfa35fe 1033
047b2ec8
MH		 1034 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
1035 if (!urb)
1036 return ERR_PTR(-ENOMEM);
9bfa35fe 1037
047b2ec8 1038 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
9bfa35fe 1039
047b2ec8
MH		 1040 usb_fill_int_urb(urb, data->udev, pipe,
1041 skb->data, skb->len, btusb_isoc_tx_complete,
1042 skb, data->isoc_tx_ep->bInterval);
9bfa35fe 1043
047b2ec8 1044 urb->transfer_flags = URB_ISO_ASAP;
5e23b923 1045
047b2ec8
MH		 1046 __fill_isoc_descriptor(urb, skb->len,
1047 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
5e23b923 1048
89e7533d 1049 skb->dev = (void *)hdev;
047b2ec8
MH		 1050
1051 return urb;
1052}
1053
1054static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
1055{
1056 struct btusb_data *data = hci_get_drvdata(hdev);
1057 int err;
7bee549e 1058
5e23b923
MH		 1059 usb_anchor_urb(urb, &data->tx_anchor);
1060
e9753eff 1061 err = usb_submit_urb(urb, GFP_KERNEL);
5e23b923 1062 if (err < 0) {
5a9b80e2
PB		 1063 if (err != -EPERM && err != -ENODEV)
1064 BT_ERR("%s urb %p submission failed (%d)",
89e7533d 1065 hdev->name, urb, -err);
5e23b923
MH		 1066 kfree(urb->setup_packet);
1067 usb_unanchor_urb(urb);
7bee549e
ON		 1068 } else {
1069 usb_mark_last_busy(data->udev);
5e23b923
MH		 1070 }
1071
54a8a79c 1072 usb_free_urb(urb);
5e23b923
MH		 1073 return err;
1074}
1075
047b2ec8
MH		 1076static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
1077{
1078 struct btusb_data *data = hci_get_drvdata(hdev);
1079 unsigned long flags;
1080 bool suspending;
1081
1082 spin_lock_irqsave(&data->txlock, flags);
1083 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
1084 if (!suspending)
1085 data->tx_in_flight++;
1086 spin_unlock_irqrestore(&data->txlock, flags);
1087
1088 if (!suspending)
1089 return submit_tx_urb(hdev, urb);
1090
1091 usb_anchor_urb(urb, &data->deferred);
1092 schedule_work(&data->waker);
1093
1094 usb_free_urb(urb);
1095 return 0;
1096}
1097
1098static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
1099{
1100 struct urb *urb;
1101
1102 BT_DBG("%s", hdev->name);
1103
1104 if (!test_bit(HCI_RUNNING, &hdev->flags))
1105 return -EBUSY;
1106
1107 switch (bt_cb(skb)->pkt_type) {
1108 case HCI_COMMAND_PKT:
1109 urb = alloc_ctrl_urb(hdev, skb);
1110 if (IS_ERR(urb))
1111 return PTR_ERR(urb);
1112
1113 hdev->stat.cmd_tx++;
1114 return submit_or_queue_tx_urb(hdev, urb);
1115
1116 case HCI_ACLDATA_PKT:
1117 urb = alloc_bulk_urb(hdev, skb);
1118 if (IS_ERR(urb))
1119 return PTR_ERR(urb);
1120
1121 hdev->stat.acl_tx++;
1122 return submit_or_queue_tx_urb(hdev, urb);
1123
1124 case HCI_SCODATA_PKT:
1125 if (hci_conn_num(hdev, SCO_LINK) < 1)
1126 return -ENODEV;
1127
1128 urb = alloc_isoc_urb(hdev, skb);
1129 if (IS_ERR(urb))
1130 return PTR_ERR(urb);
1131
1132 hdev->stat.sco_tx++;
1133 return submit_tx_urb(hdev, urb);
1134 }
1135
1136 return -EILSEQ;
1137}
1138
5e23b923
MH		 1139static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
1140{
155961e8 1141 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 1142
1143 BT_DBG("%s evt %d", hdev->name, evt);
1144
014f7bc7
MH		 1145 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
1146 data->sco_num = hci_conn_num(hdev, SCO_LINK);
43c2e57f 1147 schedule_work(&data->work);
a780efa8 1148 }
5e23b923
MH		 1149}
1150
42b16b3f 1151static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
9bfa35fe 1152{
155961e8 1153 struct btusb_data *data = hci_get_drvdata(hdev);
9bfa35fe
MH		 1154 struct usb_interface *intf = data->isoc;
1155 struct usb_endpoint_descriptor *ep_desc;
1156 int i, err;
1157
1158 if (!data->isoc)
1159 return -ENODEV;
1160
1161 err = usb_set_interface(data->udev, 1, altsetting);
1162 if (err < 0) {
1163 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
1164 return err;
1165 }
1166
1167 data->isoc_altsetting = altsetting;
1168
1169 data->isoc_tx_ep = NULL;
1170 data->isoc_rx_ep = NULL;
1171
1172 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1173 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1174
1175 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
1176 data->isoc_tx_ep = ep_desc;
1177 continue;
1178 }
1179
1180 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
1181 data->isoc_rx_ep = ep_desc;
1182 continue;
1183 }
1184 }
1185
1186 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
1187 BT_ERR("%s invalid SCO descriptors", hdev->name);
1188 return -ENODEV;
1189 }
1190
1191 return 0;
1192}
1193
5e23b923
MH		 1194static void btusb_work(struct work_struct *work)
1195{
1196 struct btusb_data *data = container_of(work, struct btusb_data, work);
1197 struct hci_dev *hdev = data->hdev;
f4001d28 1198 int new_alts;
7bee549e 1199 int err;
5e23b923 1200
014f7bc7 1201 if (data->sco_num > 0) {
08b8b6c4 1202 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
8efdd0cd 1203 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
7bee549e
ON		 1204 if (err < 0) {
1205 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1206 usb_kill_anchored_urbs(&data->isoc_anchor);
1207 return;
1208 }
1209
08b8b6c4 1210 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
7bee549e 1211 }
f4001d28
MA		 1212
1213 if (hdev->voice_setting & 0x0020) {
1214 static const int alts[3] = { 2, 4, 5 };
89e7533d 1215
014f7bc7 1216 new_alts = alts[data->sco_num - 1];
f4001d28 1217 } else {
014f7bc7 1218 new_alts = data->sco_num;
f4001d28
MA		 1219 }
1220
1221 if (data->isoc_altsetting != new_alts) {
9bfa35fe
MH		 1222 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1223 usb_kill_anchored_urbs(&data->isoc_anchor);
1224
f4001d28 1225 if (__set_isoc_interface(hdev, new_alts) < 0)
9bfa35fe
MH		 1226 return;
1227 }
1228
1229 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2eda66f4 1230 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
9bfa35fe
MH		 1231 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1232 else
2eda66f4 1233 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
9bfa35fe
MH		 1234 }
1235 } else {
1236 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1237 usb_kill_anchored_urbs(&data->isoc_anchor);
1238
1239 __set_isoc_interface(hdev, 0);
08b8b6c4 1240 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
8efdd0cd 1241 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
5e23b923
MH		 1242 }
1243}
1244
7bee549e
ON		 1245static void btusb_waker(struct work_struct *work)
1246{
1247 struct btusb_data *data = container_of(work, struct btusb_data, waker);
1248 int err;
1249
1250 err = usb_autopm_get_interface(data->intf);
1251 if (err < 0)
1252 return;
1253
1254 usb_autopm_put_interface(data->intf);
1255}
1256
9f8f962c
MH		 1257static int btusb_setup_bcm92035(struct hci_dev *hdev)
1258{
1259 struct sk_buff *skb;
1260 u8 val = 0x00;
1261
1262 BT_DBG("%s", hdev->name);
1263
1264 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
1265 if (IS_ERR(skb))
1266 BT_ERR("BCM92035 command failed (%ld)", -PTR_ERR(skb));
1267 else
1268 kfree_skb(skb);
1269
1270 return 0;
1271}
1272
81cac64b
MH		 1273static int btusb_setup_csr(struct hci_dev *hdev)
1274{
1275 struct hci_rp_read_local_version *rp;
1276 struct sk_buff *skb;
1277 int ret;
1278
1279 BT_DBG("%s", hdev->name);
1280
1281 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1282 HCI_INIT_TIMEOUT);
1283 if (IS_ERR(skb)) {
1284 BT_ERR("Reading local version failed (%ld)", -PTR_ERR(skb));
1285 return -PTR_ERR(skb);
1286 }
1287
89e7533d 1288 rp = (struct hci_rp_read_local_version *)skb->data;
81cac64b
MH		 1289
1290 if (!rp->status) {
1291 if (le16_to_cpu(rp->manufacturer) != 10) {
1292 /* Clear the reset quirk since this is not an actual
1293 * early Bluetooth 1.1 device from CSR.
1294 */
1295 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1296
1297 /* These fake CSR controllers have all a broken
1298 * stored link key handling and so just disable it.
1299 */
1300 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY,
1301 &hdev->quirks);
1302 }
1303 }
1304
1305 ret = -bt_to_errno(rp->status);
1306
1307 kfree_skb(skb);
1308
1309 return ret;
1310}
1311
dffd30ee
THJA		 1312struct intel_version {
1313 u8 status;
1314 u8 hw_platform;
1315 u8 hw_variant;
1316 u8 hw_revision;
1317 u8 fw_variant;
1318 u8 fw_revision;
1319 u8 fw_build_num;
1320 u8 fw_build_ww;
1321 u8 fw_build_yy;
1322 u8 fw_patch_num;
1323} __packed;
1324
cda0dd78
MH		 1325struct intel_boot_params {
1326 __u8 status;
1327 __u8 otp_format;
1328 __u8 otp_content;
1329 __u8 otp_patch;
1330 __le16 dev_revid;
1331 __u8 secure_boot;
1332 __u8 key_from_hdr;
1333 __u8 key_type;
1334 __u8 otp_lock;
1335 __u8 api_lock;
1336 __u8 debug_lock;
1337 bdaddr_t otp_bdaddr;
1338 __u8 min_fw_build_nn;
1339 __u8 min_fw_build_cw;
1340 __u8 min_fw_build_yy;
1341 __u8 limited_cce;
1342 __u8 unlocked_state;
1343} __packed;
1344
dffd30ee 1345static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev,
89e7533d 1346 struct intel_version *ver)
dffd30ee
THJA		 1347{
1348 const struct firmware *fw;
1349 char fwname[64];
1350 int ret;
1351
1352 snprintf(fwname, sizeof(fwname),
1353 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq",
1354 ver->hw_platform, ver->hw_variant, ver->hw_revision,
1355 ver->fw_variant, ver->fw_revision, ver->fw_build_num,
1356 ver->fw_build_ww, ver->fw_build_yy);
1357
1358 ret = request_firmware(&fw, fwname, &hdev->dev);
1359 if (ret < 0) {
1360 if (ret == -EINVAL) {
1361 BT_ERR("%s Intel firmware file request failed (%d)",
1362 hdev->name, ret);
1363 return NULL;
1364 }
1365
1366 BT_ERR("%s failed to open Intel firmware file: %s(%d)",
1367 hdev->name, fwname, ret);
1368
1369 /* If the correct firmware patch file is not found, use the
1370 * default firmware patch file instead
1371 */
1372 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq",
1373 ver->hw_platform, ver->hw_variant);
1374 if (request_firmware(&fw, fwname, &hdev->dev) < 0) {
1375 BT_ERR("%s failed to open default Intel fw file: %s",
1376 hdev->name, fwname);
1377 return NULL;
1378 }
1379 }
1380
1381 BT_INFO("%s: Intel Bluetooth firmware file: %s", hdev->name, fwname);
1382
1383 return fw;
1384}
1385
1386static int btusb_setup_intel_patching(struct hci_dev *hdev,
1387 const struct firmware *fw,
1388 const u8 **fw_ptr, int *disable_patch)
1389{
1390 struct sk_buff *skb;
1391 struct hci_command_hdr *cmd;
1392 const u8 *cmd_param;
1393 struct hci_event_hdr *evt = NULL;
1394 const u8 *evt_param = NULL;
1395 int remain = fw->size - (*fw_ptr - fw->data);
1396
1397 /* The first byte indicates the types of the patch command or event.
1398 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes
1399 * in the current firmware buffer doesn't start with 0x01 or
1400 * the size of remain buffer is smaller than HCI command header,
1401 * the firmware file is corrupted and it should stop the patching
1402 * process.
1403 */
1404 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) {
1405 BT_ERR("%s Intel fw corrupted: invalid cmd read", hdev->name);
1406 return -EINVAL;
1407 }
1408 (*fw_ptr)++;
1409 remain--;
1410
1411 cmd = (struct hci_command_hdr *)(*fw_ptr);
1412 *fw_ptr += sizeof(*cmd);
1413 remain -= sizeof(*cmd);
1414
1415 /* Ensure that the remain firmware data is long enough than the length
1416 * of command parameter. If not, the firmware file is corrupted.
1417 */
1418 if (remain < cmd->plen) {
1419 BT_ERR("%s Intel fw corrupted: invalid cmd len", hdev->name);
1420 return -EFAULT;
1421 }
1422
1423 /* If there is a command that loads a patch in the firmware
1424 * file, then enable the patch upon success, otherwise just
1425 * disable the manufacturer mode, for example patch activation
1426 * is not required when the default firmware patch file is used
1427 * because there are no patch data to load.
1428 */
1429 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e)
1430 *disable_patch = 0;
1431
1432 cmd_param = *fw_ptr;
1433 *fw_ptr += cmd->plen;
1434 remain -= cmd->plen;
1435
1436 /* This reads the expected events when the above command is sent to the
1437 * device. Some vendor commands expects more than one events, for
1438 * example command status event followed by vendor specific event.
1439 * For this case, it only keeps the last expected event. so the command
1440 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of
1441 * last expected event.
1442 */
1443 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) {
1444 (*fw_ptr)++;
1445 remain--;
1446
1447 evt = (struct hci_event_hdr *)(*fw_ptr);
1448 *fw_ptr += sizeof(*evt);
1449 remain -= sizeof(*evt);
1450
1451 if (remain < evt->plen) {
1452 BT_ERR("%s Intel fw corrupted: invalid evt len",
1453 hdev->name);
1454 return -EFAULT;
1455 }
1456
1457 evt_param = *fw_ptr;
1458 *fw_ptr += evt->plen;
1459 remain -= evt->plen;
1460 }
1461
1462 /* Every HCI commands in the firmware file has its correspond event.
1463 * If event is not found or remain is smaller than zero, the firmware
1464 * file is corrupted.
1465 */
1466 if (!evt || !evt_param || remain < 0) {
1467 BT_ERR("%s Intel fw corrupted: invalid evt read", hdev->name);
1468 return -EFAULT;
1469 }
1470
1471 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen,
1472 cmd_param, evt->evt, HCI_INIT_TIMEOUT);
1473 if (IS_ERR(skb)) {
1474 BT_ERR("%s sending Intel patch command (0x%4.4x) failed (%ld)",
1475 hdev->name, cmd->opcode, PTR_ERR(skb));
d9c78e97 1476 return PTR_ERR(skb);
dffd30ee
THJA		 1477 }
1478
1479 /* It ensures that the returned event matches the event data read from
1480 * the firmware file. At fist, it checks the length and then
1481 * the contents of the event.
1482 */
1483 if (skb->len != evt->plen) {
1484 BT_ERR("%s mismatch event length (opcode 0x%4.4x)", hdev->name,
1485 le16_to_cpu(cmd->opcode));
1486 kfree_skb(skb);
1487 return -EFAULT;
1488 }
1489
1490 if (memcmp(skb->data, evt_param, evt->plen)) {
1491 BT_ERR("%s mismatch event parameter (opcode 0x%4.4x)",
1492 hdev->name, le16_to_cpu(cmd->opcode));
1493 kfree_skb(skb);
1494 return -EFAULT;
1495 }
1496 kfree_skb(skb);
1497
1498 return 0;
1499}
1500
40cb0984
MH		 1501#define BDADDR_INTEL (&(bdaddr_t) {{0x00, 0x8b, 0x9e, 0x19, 0x03, 0x00}})
1502
1503static int btusb_check_bdaddr_intel(struct hci_dev *hdev)
1504{
1505 struct sk_buff *skb;
1506 struct hci_rp_read_bd_addr *rp;
1507
1508 skb = __hci_cmd_sync(hdev, HCI_OP_READ_BD_ADDR, 0, NULL,
1509 HCI_INIT_TIMEOUT);
1510 if (IS_ERR(skb)) {
1511 BT_ERR("%s reading Intel device address failed (%ld)",
1512 hdev->name, PTR_ERR(skb));
1513 return PTR_ERR(skb);
1514 }
1515
1516 if (skb->len != sizeof(*rp)) {
1517 BT_ERR("%s Intel device address length mismatch", hdev->name);
1518 kfree_skb(skb);
1519 return -EIO;
1520 }
1521
89e7533d 1522 rp = (struct hci_rp_read_bd_addr *)skb->data;
40cb0984
MH		 1523 if (rp->status) {
1524 BT_ERR("%s Intel device address result failed (%02x)",
1525 hdev->name, rp->status);
1526 kfree_skb(skb);
1527 return -bt_to_errno(rp->status);
1528 }
1529
1530 /* For some Intel based controllers, the default Bluetooth device
1531 * address 00:03:19:9E:8B:00 can be found. These controllers are
1532 * fully operational, but have the danger of duplicate addresses
1533 * and that in turn can cause problems with Bluetooth operation.
1534 */
4739b5b1 1535 if (!bacmp(&rp->bdaddr, BDADDR_INTEL)) {
40cb0984
MH		 1536 BT_ERR("%s found Intel default device address (%pMR)",
1537 hdev->name, &rp->bdaddr);
4739b5b1
MH		 1538 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
1539 }
40cb0984
MH		 1540
1541 kfree_skb(skb);
1542
1543 return 0;
1544}
1545
dffd30ee
THJA		 1546static int btusb_setup_intel(struct hci_dev *hdev)
1547{
1548 struct sk_buff *skb;
1549 const struct firmware *fw;
1550 const u8 *fw_ptr;
1551 int disable_patch;
1552 struct intel_version *ver;
1553
1554 const u8 mfg_enable[] = { 0x01, 0x00 };
1555 const u8 mfg_disable[] = { 0x00, 0x00 };
1556 const u8 mfg_reset_deactivate[] = { 0x00, 0x01 };
1557 const u8 mfg_reset_activate[] = { 0x00, 0x02 };
1558
1559 BT_DBG("%s", hdev->name);
1560
1561 /* The controller has a bug with the first HCI command sent to it
1562 * returning number of completed commands as zero. This would stall the
1563 * command processing in the Bluetooth core.
1564 *
1565 * As a workaround, send HCI Reset command first which will reset the
1566 * number of completed commands and allow normal command processing
1567 * from now on.
1568 */
1569 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1570 if (IS_ERR(skb)) {
1571 BT_ERR("%s sending initial HCI reset command failed (%ld)",
1572 hdev->name, PTR_ERR(skb));
d9c78e97 1573 return PTR_ERR(skb);
dffd30ee
THJA		 1574 }
1575 kfree_skb(skb);
1576
1577 /* Read Intel specific controller version first to allow selection of
1578 * which firmware file to load.
1579 *
1580 * The returned information are hardware variant and revision plus
1581 * firmware variant, revision and build number.
1582 */
1583 skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT);
1584 if (IS_ERR(skb)) {
1585 BT_ERR("%s reading Intel fw version command failed (%ld)",
1586 hdev->name, PTR_ERR(skb));
d9c78e97 1587 return PTR_ERR(skb);
dffd30ee
THJA		 1588 }
1589
1590 if (skb->len != sizeof(*ver)) {
1591 BT_ERR("%s Intel version event length mismatch", hdev->name);
1592 kfree_skb(skb);
1593 return -EIO;
1594 }
1595
1596 ver = (struct intel_version *)skb->data;
1597 if (ver->status) {
1598 BT_ERR("%s Intel fw version event failed (%02x)", hdev->name,
1599 ver->status);
1600 kfree_skb(skb);
1601 return -bt_to_errno(ver->status);
1602 }
1603
1604 BT_INFO("%s: read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
1605 hdev->name, ver->hw_platform, ver->hw_variant,
1606 ver->hw_revision, ver->fw_variant, ver->fw_revision,
1607 ver->fw_build_num, ver->fw_build_ww, ver->fw_build_yy,
1608 ver->fw_patch_num);
1609
1610 /* fw_patch_num indicates the version of patch the device currently
1611 * have. If there is no patch data in the device, it is always 0x00.
1612 * So, if it is other than 0x00, no need to patch the deivce again.
1613 */
1614 if (ver->fw_patch_num) {
1615 BT_INFO("%s: Intel device is already patched. patch num: %02x",
1616 hdev->name, ver->fw_patch_num);
1617 kfree_skb(skb);
40cb0984 1618 btusb_check_bdaddr_intel(hdev);
dffd30ee
THJA		 1619 return 0;
1620 }
1621
1622 /* Opens the firmware patch file based on the firmware version read
1623 * from the controller. If it fails to open the matching firmware
1624 * patch file, it tries to open the default firmware patch file.
1625 * If no patch file is found, allow the device to operate without
1626 * a patch.
1627 */
1628 fw = btusb_setup_intel_get_fw(hdev, ver);
1629 if (!fw) {
1630 kfree_skb(skb);
40cb0984 1631 btusb_check_bdaddr_intel(hdev);
dffd30ee
THJA		 1632 return 0;
1633 }
1634 fw_ptr = fw->data;
1635
1636 /* This Intel specific command enables the manufacturer mode of the
1637 * controller.
1638 *
1639 * Only while this mode is enabled, the driver can download the
1640 * firmware patch data and configuration parameters.
1641 */
1642 skb = __hci_cmd_sync(hdev, 0xfc11, 2, mfg_enable, HCI_INIT_TIMEOUT);
1643 if (IS_ERR(skb)) {
1644 BT_ERR("%s entering Intel manufacturer mode failed (%ld)",
1645 hdev->name, PTR_ERR(skb));
1646 release_firmware(fw);
d9c78e97 1647 return PTR_ERR(skb);
dffd30ee
THJA		 1648 }
1649
1650 if (skb->data[0]) {
1651 u8 evt_status = skb->data[0];
89e7533d 1652
dffd30ee
THJA		 1653 BT_ERR("%s enable Intel manufacturer mode event failed (%02x)",
1654 hdev->name, evt_status);
1655 kfree_skb(skb);
1656 release_firmware(fw);
1657 return -bt_to_errno(evt_status);
1658 }
1659 kfree_skb(skb);
1660
1661 disable_patch = 1;
1662
1663 /* The firmware data file consists of list of Intel specific HCI
1664 * commands and its expected events. The first byte indicates the
1665 * type of the message, either HCI command or HCI event.
1666 *
1667 * It reads the command and its expected event from the firmware file,
1668 * and send to the controller. Once __hci_cmd_sync_ev() returns,
1669 * the returned event is compared with the event read from the firmware
1670 * file and it will continue until all the messages are downloaded to
1671 * the controller.
1672 *
1673 * Once the firmware patching is completed successfully,
1674 * the manufacturer mode is disabled with reset and activating the
1675 * downloaded patch.
1676 *
1677 * If the firmware patching fails, the manufacturer mode is
1678 * disabled with reset and deactivating the patch.
1679 *
1680 * If the default patch file is used, no reset is done when disabling
1681 * the manufacturer.
1682 */
1683 while (fw->size > fw_ptr - fw->data) {
1684 int ret;
1685
1686 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr,
1687 &disable_patch);
1688 if (ret < 0)
1689 goto exit_mfg_deactivate;
1690 }
1691
1692 release_firmware(fw);
1693
1694 if (disable_patch)
1695 goto exit_mfg_disable;
1696
1697 /* Patching completed successfully and disable the manufacturer mode
1698 * with reset and activate the downloaded firmware patches.
1699 */
1700 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_activate),
1701 mfg_reset_activate, HCI_INIT_TIMEOUT);
1702 if (IS_ERR(skb)) {
1703 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1704 hdev->name, PTR_ERR(skb));
d9c78e97 1705 return PTR_ERR(skb);
dffd30ee
THJA		 1706 }
1707 kfree_skb(skb);
1708
1709 BT_INFO("%s: Intel Bluetooth firmware patch completed and activated",
1710 hdev->name);
1711
40cb0984 1712 btusb_check_bdaddr_intel(hdev);
dffd30ee
THJA		 1713 return 0;
1714
1715exit_mfg_disable:
1716 /* Disable the manufacturer mode without reset */
1717 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_disable), mfg_disable,
1718 HCI_INIT_TIMEOUT);
1719 if (IS_ERR(skb)) {
1720 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1721 hdev->name, PTR_ERR(skb));
d9c78e97 1722 return PTR_ERR(skb);
dffd30ee
THJA		 1723 }
1724 kfree_skb(skb);
1725
1726 BT_INFO("%s: Intel Bluetooth firmware patch completed", hdev->name);
40cb0984
MH		 1727
1728 btusb_check_bdaddr_intel(hdev);
dffd30ee
THJA		 1729 return 0;
1730
1731exit_mfg_deactivate:
1732 release_firmware(fw);
1733
1734 /* Patching failed. Disable the manufacturer mode with reset and
1735 * deactivate the downloaded firmware patches.
1736 */
1737 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_deactivate),
1738 mfg_reset_deactivate, HCI_INIT_TIMEOUT);
1739 if (IS_ERR(skb)) {
1740 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1741 hdev->name, PTR_ERR(skb));
d9c78e97 1742 return PTR_ERR(skb);
dffd30ee
THJA		 1743 }
1744 kfree_skb(skb);
1745
1746 BT_INFO("%s: Intel Bluetooth firmware patch completed and deactivated",
1747 hdev->name);
1748
40cb0984 1749 btusb_check_bdaddr_intel(hdev);
dffd30ee
THJA		 1750 return 0;
1751}
1752
cda0dd78
MH		 1753static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
1754{
1755 struct sk_buff *skb;
1756 struct hci_event_hdr *hdr;
1757 struct hci_ev_cmd_complete *evt;
1758
1759 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_ATOMIC);
1760 if (!skb)
1761 return -ENOMEM;
1762
1763 hdr = (struct hci_event_hdr *)skb_put(skb, sizeof(*hdr));
1764 hdr->evt = HCI_EV_CMD_COMPLETE;
1765 hdr->plen = sizeof(*evt) + 1;
1766
1767 evt = (struct hci_ev_cmd_complete *)skb_put(skb, sizeof(*evt));
1768 evt->ncmd = 0x01;
1769 evt->opcode = cpu_to_le16(opcode);
1770
1771 *skb_put(skb, 1) = 0x00;
1772
1773 bt_cb(skb)->pkt_type = HCI_EVENT_PKT;
1774
1775 return hci_recv_frame(hdev, skb);
1776}
1777
1778static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
1779 int count)
1780{
1781 /* When the device is in bootloader mode, then it can send
1782 * events via the bulk endpoint. These events are treated the
1783 * same way as the ones received from the interrupt endpoint.
1784 */
1785 if (test_bit(BTUSB_BOOTLOADER, &data->flags))
1786 return btusb_recv_intr(data, buffer, count);
1787
1788 return btusb_recv_bulk(data, buffer, count);
1789}
1790
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
1798 /* When the firmware loading completes the device sends
1799 * out a vendor specific event indicating the result of
1800 * the firmware loading.
1801 */
1802 if (skb->len == 7 && hdr->evt == 0xff && hdr->plen == 0x05 &&
1803 skb->data[2] == 0x06) {
1804 if (skb->data[3] != 0x00)
1805 test_bit(BTUSB_FIRMWARE_FAILED, &data->flags);
1806
ce6bb929
MH		 1807 if (test_and_clear_bit(BTUSB_DOWNLOADING,
1808 &data->flags) &&
a087a98e
JH		 1809 test_bit(BTUSB_FIRMWARE_LOADED, &data->flags)) {
1810 smp_mb__after_atomic();
1811 wake_up_bit(&data->flags, BTUSB_DOWNLOADING);
1812 }
cda0dd78
MH		 1813 }
1814
1815 /* When switching to the operational firmware the device
1816 * sends a vendor specific event indicating that the bootup
1817 * completed.
1818 */
1819 if (skb->len == 9 && hdr->evt == 0xff && hdr->plen == 0x07 &&
1820 skb->data[2] == 0x02) {
fad70972
JH		 1821 if (test_and_clear_bit(BTUSB_BOOTING, &data->flags)) {
1822 smp_mb__after_atomic();
1823 wake_up_bit(&data->flags, BTUSB_BOOTING);
1824 }
cda0dd78
MH		 1825 }
1826 }
1827
1828 return hci_recv_frame(hdev, skb);
1829}
1830
1831static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
1832{
1833 struct btusb_data *data = hci_get_drvdata(hdev);
1834 struct urb *urb;
1835
1836 BT_DBG("%s", hdev->name);
1837
1838 if (!test_bit(HCI_RUNNING, &hdev->flags))
1839 return -EBUSY;
1840
1841 switch (bt_cb(skb)->pkt_type) {
1842 case HCI_COMMAND_PKT:
1843 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
1844 struct hci_command_hdr *cmd = (void *)skb->data;
1845 __u16 opcode = le16_to_cpu(cmd->opcode);
1846
1847 /* When in bootloader mode and the command 0xfc09
1848 * is received, it needs to be send down the
1849 * bulk endpoint. So allocate a bulk URB instead.
1850 */
1851 if (opcode == 0xfc09)
1852 urb = alloc_bulk_urb(hdev, skb);
1853 else
1854 urb = alloc_ctrl_urb(hdev, skb);
1855
1856 /* When the 0xfc01 command is issued to boot into
1857 * the operational firmware, it will actually not
1858 * send a command complete event. To keep the flow
1859 * control working inject that event here.
1860 */
1861 if (opcode == 0xfc01)
1862 inject_cmd_complete(hdev, opcode);
1863 } else {
1864 urb = alloc_ctrl_urb(hdev, skb);
1865 }
1866 if (IS_ERR(urb))
1867 return PTR_ERR(urb);
1868
1869 hdev->stat.cmd_tx++;
1870 return submit_or_queue_tx_urb(hdev, urb);
1871
1872 case HCI_ACLDATA_PKT:
1873 urb = alloc_bulk_urb(hdev, skb);
1874 if (IS_ERR(urb))
1875 return PTR_ERR(urb);
1876
1877 hdev->stat.acl_tx++;
1878 return submit_or_queue_tx_urb(hdev, urb);
1879
1880 case HCI_SCODATA_PKT:
1881 if (hci_conn_num(hdev, SCO_LINK) < 1)
1882 return -ENODEV;
1883
1884 urb = alloc_isoc_urb(hdev, skb);
1885 if (IS_ERR(urb))
1886 return PTR_ERR(urb);
1887
1888 hdev->stat.sco_tx++;
1889 return submit_tx_urb(hdev, urb);
1890 }
1891
1892 return -EILSEQ;
1893}
1894
1895static int btusb_intel_secure_send(struct hci_dev *hdev, u8 fragment_type,
1896 u32 plen, const void *param)
1897{
1898 while (plen > 0) {
1899 struct sk_buff *skb;
1900 u8 cmd_param[253], fragment_len = (plen > 252) ? 252 : plen;
1901
1902 cmd_param[0] = fragment_type;
1903 memcpy(cmd_param + 1, param, fragment_len);
1904
1905 skb = __hci_cmd_sync(hdev, 0xfc09, fragment_len + 1,
1906 cmd_param, HCI_INIT_TIMEOUT);
1907 if (IS_ERR(skb))
1908 return PTR_ERR(skb);
1909
1910 kfree_skb(skb);
1911
1912 plen -= fragment_len;
1913 param += fragment_len;
1914 }
1915
1916 return 0;
1917}
1918
1919static void btusb_intel_version_info(struct hci_dev *hdev,
1920 struct intel_version *ver)
1921{
1922 const char *variant;
1923
1924 switch (ver->fw_variant) {
1925 case 0x06:
1926 variant = "Bootloader";
1927 break;
1928 case 0x23:
1929 variant = "Firmware";
1930 break;
1931 default:
1932 return;
1933 }
1934
1935 BT_INFO("%s: %s revision %u.%u build %u week %u %u", hdev->name,
1936 variant, ver->fw_revision >> 4, ver->fw_revision & 0x0f,
1937 ver->fw_build_num, ver->fw_build_ww, 2000 + ver->fw_build_yy);
1938}
1939
1940static int btusb_setup_intel_new(struct hci_dev *hdev)
1941{
1942 static const u8 reset_param[] = { 0x00, 0x01, 0x00, 0x01,
1943 0x00, 0x08, 0x04, 0x00 };
1944 struct btusb_data *data = hci_get_drvdata(hdev);
1945 struct sk_buff *skb;
1946 struct intel_version *ver;
1947 struct intel_boot_params *params;
1948 const struct firmware *fw;
1949 const u8 *fw_ptr;
1950 char fwname[64];
1951 ktime_t calltime, delta, rettime;
1952 unsigned long long duration;
1953 int err;
1954
1955 BT_DBG("%s", hdev->name);
1956
1957 calltime = ktime_get();
1958
1959 /* Read the Intel version information to determine if the device
1960 * is in bootloader mode or if it already has operational firmware
1961 * loaded.
1962 */
1963 skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT);
1964 if (IS_ERR(skb)) {
1965 BT_ERR("%s: Reading Intel version information failed (%ld)",
1966 hdev->name, PTR_ERR(skb));
1967 return PTR_ERR(skb);
1968 }
1969
1970 if (skb->len != sizeof(*ver)) {
1971 BT_ERR("%s: Intel version event size mismatch", hdev->name);
1972 kfree_skb(skb);
1973 return -EILSEQ;
1974 }
1975
1976 ver = (struct intel_version *)skb->data;
1977 if (ver->status) {
1978 BT_ERR("%s: Intel version command failure (%02x)",
1979 hdev->name, ver->status);
1980 err = -bt_to_errno(ver->status);
1981 kfree_skb(skb);
1982 return err;
1983 }
1984
1985 /* The hardware platform number has a fixed value of 0x37 and
1986 * for now only accept this single value.
1987 */
1988 if (ver->hw_platform != 0x37) {
1989 BT_ERR("%s: Unsupported Intel hardware platform (%u)",
1990 hdev->name, ver->hw_platform);
1991 kfree_skb(skb);
1992 return -EINVAL;
1993 }
1994
1995 /* At the moment only the hardware variant iBT 3.0 (LnP/SfP) is
1996 * supported by this firmware loading method. This check has been
1997 * put in place to ensure correct forward compatibility options
1998 * when newer hardware variants come along.
1999 */
2000 if (ver->hw_variant != 0x0b) {
2001 BT_ERR("%s: Unsupported Intel hardware variant (%u)",
2002 hdev->name, ver->hw_variant);
2003 kfree_skb(skb);
2004 return -EINVAL;
2005 }
2006
2007 btusb_intel_version_info(hdev, ver);
2008
2009 /* The firmware variant determines if the device is in bootloader
2010 * mode or is running operational firmware. The value 0x06 identifies
2011 * the bootloader and the value 0x23 identifies the operational
2012 * firmware.
2013 *
2014 * When the operational firmware is already present, then only
2015 * the check for valid Bluetooth device address is needed. This
2016 * determines if the device will be added as configured or
2017 * unconfigured controller.
2018 *
2019 * It is not possible to use the Secure Boot Parameters in this
2020 * case since that command is only available in bootloader mode.
2021 */
2022 if (ver->fw_variant == 0x23) {
2023 kfree_skb(skb);
2024 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2025 btusb_check_bdaddr_intel(hdev);
2026 return 0;
2027 }
2028
2029 /* If the device is not in bootloader mode, then the only possible
2030 * choice is to return an error and abort the device initialization.
2031 */
2032 if (ver->fw_variant != 0x06) {
2033 BT_ERR("%s: Unsupported Intel firmware variant (%u)",
2034 hdev->name, ver->fw_variant);
2035 kfree_skb(skb);
2036 return -ENODEV;
2037 }
2038
2039 kfree_skb(skb);
2040
2041 /* Read the secure boot parameters to identify the operating
2042 * details of the bootloader.
2043 */
2044 skb = __hci_cmd_sync(hdev, 0xfc0d, 0, NULL, HCI_INIT_TIMEOUT);
2045 if (IS_ERR(skb)) {
2046 BT_ERR("%s: Reading Intel boot parameters failed (%ld)",
2047 hdev->name, PTR_ERR(skb));
2048 return PTR_ERR(skb);
2049 }
2050
2051 if (skb->len != sizeof(*params)) {
2052 BT_ERR("%s: Intel boot parameters size mismatch", hdev->name);
2053 kfree_skb(skb);
2054 return -EILSEQ;
2055 }
2056
2057 params = (struct intel_boot_params *)skb->data;
2058 if (params->status) {
2059 BT_ERR("%s: Intel boot parameters command failure (%02x)",
2060 hdev->name, params->status);
2061 err = -bt_to_errno(params->status);
2062 kfree_skb(skb);
2063 return err;
2064 }
2065
2066 BT_INFO("%s: Device revision is %u", hdev->name,
2067 le16_to_cpu(params->dev_revid));
2068
2069 BT_INFO("%s: Secure boot is %s", hdev->name,
2070 params->secure_boot ? "enabled" : "disabled");
2071
2072 BT_INFO("%s: Minimum firmware build %u week %u %u", hdev->name,
2073 params->min_fw_build_nn, params->min_fw_build_cw,
2074 2000 + params->min_fw_build_yy);
2075
2076 /* It is required that every single firmware fragment is acknowledged
2077 * with a command complete event. If the boot parameters indicate
2078 * that this bootloader does not send them, then abort the setup.
2079 */
2080 if (params->limited_cce != 0x00) {
2081 BT_ERR("%s: Unsupported Intel firmware loading method (%u)",
2082 hdev->name, params->limited_cce);
2083 kfree_skb(skb);
2084 return -EINVAL;
2085 }
2086
2087 /* If the OTP has no valid Bluetooth device address, then there will
2088 * also be no valid address for the operational firmware.
2089 */
2090 if (!bacmp(&params->otp_bdaddr, BDADDR_ANY)) {
2091 BT_INFO("%s: No device address configured", hdev->name);
2092 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
2093 }
2094
2095 /* With this Intel bootloader only the hardware variant and device
2096 * revision information are used to select the right firmware.
2097 *
2098 * Currently this bootloader support is limited to hardware variant
2099 * iBT 3.0 (LnP/SfP) which is identified by the value 11 (0x0b).
2100 */
2101 snprintf(fwname, sizeof(fwname), "intel/ibt-11-%u.sfi",
2102 le16_to_cpu(params->dev_revid));
2103
2104 err = request_firmware(&fw, fwname, &hdev->dev);
2105 if (err < 0) {
2106 BT_ERR("%s: Failed to load Intel firmware file (%d)",
2107 hdev->name, err);
2108 kfree_skb(skb);
2109 return err;
2110 }
2111
2112 BT_INFO("%s: Found device firmware: %s", hdev->name, fwname);
2113
2114 kfree_skb(skb);
2115
2116 if (fw->size < 644) {
2117 BT_ERR("%s: Invalid size of firmware file (%zu)",
2118 hdev->name, fw->size);
2119 err = -EBADF;
2120 goto done;
2121 }
2122
2123 set_bit(BTUSB_DOWNLOADING, &data->flags);
2124
2125 /* Start the firmware download transaction with the Init fragment
2126 * represented by the 128 bytes of CSS header.
2127 */
2128 err = btusb_intel_secure_send(hdev, 0x00, 128, fw->data);
2129 if (err < 0) {
2130 BT_ERR("%s: Failed to send firmware header (%d)",
2131 hdev->name, err);
2132 goto done;
2133 }
2134
2135 /* Send the 256 bytes of public key information from the firmware
2136 * as the PKey fragment.
2137 */
2138 err = btusb_intel_secure_send(hdev, 0x03, 256, fw->data + 128);
2139 if (err < 0) {
2140 BT_ERR("%s: Failed to send firmware public key (%d)",
2141 hdev->name, err);
2142 goto done;
2143 }
2144
2145 /* Send the 256 bytes of signature information from the firmware
2146 * as the Sign fragment.
2147 */
2148 err = btusb_intel_secure_send(hdev, 0x02, 256, fw->data + 388);
2149 if (err < 0) {
2150 BT_ERR("%s: Failed to send firmware signature (%d)",
2151 hdev->name, err);
2152 goto done;
2153 }
2154
2155 fw_ptr = fw->data + 644;
2156
2157 while (fw_ptr - fw->data < fw->size) {
2158 struct hci_command_hdr *cmd = (void *)fw_ptr;
2159 u8 cmd_len;
2160
2161 cmd_len = sizeof(*cmd) + cmd->plen;
2162
2163 /* Send each command from the firmware data buffer as
2164 * a single Data fragment.
2165 */
2166 err = btusb_intel_secure_send(hdev, 0x01, cmd_len, fw_ptr);
2167 if (err < 0) {
2168 BT_ERR("%s: Failed to send firmware data (%d)",
2169 hdev->name, err);
2170 goto done;
2171 }
2172
2173 fw_ptr += cmd_len;
2174 }
2175
ce6bb929
MH		 2176 set_bit(BTUSB_FIRMWARE_LOADED, &data->flags);
2177
a087a98e
JH		 2178 BT_INFO("%s: Waiting for firmware download to complete", hdev->name);
2179
cda0dd78
MH		 2180 /* Before switching the device into operational mode and with that
2181 * booting the loaded firmware, wait for the bootloader notification
2182 * that all fragments have been successfully received.
2183 *
a087a98e
JH		 2184 * When the event processing receives the notification, then the
2185 * BTUSB_DOWNLOADING flag will be cleared.
2186 *
2187 * The firmware loading should not take longer than 5 seconds
2188 * and thus just timeout if that happens and fail the setup
2189 * of this device.
cda0dd78 2190 */
129a7693
JH		 2191 err = wait_on_bit_timeout(&data->flags, BTUSB_DOWNLOADING,
2192 TASK_INTERRUPTIBLE,
2193 msecs_to_jiffies(5000));
a087a98e
JH		 2194 if (err == 1) {
2195 BT_ERR("%s: Firmware loading interrupted", hdev->name);
2196 err = -EINTR;
2197 goto done;
2198 }
cda0dd78 2199
a087a98e
JH		 2200 if (err) {
2201 BT_ERR("%s: Firmware loading timeout", hdev->name);
2202 err = -ETIMEDOUT;
2203 goto done;
cda0dd78
MH		 2204 }
2205
2206 if (test_bit(BTUSB_FIRMWARE_FAILED, &data->flags)) {
2207 BT_ERR("%s: Firmware loading failed", hdev->name);
2208 err = -ENOEXEC;
2209 goto done;
2210 }
2211
2212 rettime = ktime_get();
2213 delta = ktime_sub(rettime, calltime);
2214 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2215
2216 BT_INFO("%s: Firmware loaded in %llu usecs", hdev->name, duration);
2217
2218done:
2219 release_firmware(fw);
2220
2221 if (err < 0)
2222 return err;
2223
2224 calltime = ktime_get();
2225
2226 set_bit(BTUSB_BOOTING, &data->flags);
2227
2228 skb = __hci_cmd_sync(hdev, 0xfc01, sizeof(reset_param), reset_param,
2229 HCI_INIT_TIMEOUT);
2230 if (IS_ERR(skb))
2231 return PTR_ERR(skb);
2232
2233 kfree_skb(skb);
2234
2235 /* The bootloader will not indicate when the device is ready. This
2236 * is done by the operational firmware sending bootup notification.
fad70972
JH		 2237 *
2238 * Booting into operational firmware should not take longer than
2239 * 1 second. However if that happens, then just fail the setup
2240 * since something went wrong.
cda0dd78 2241 */
fad70972 2242 BT_INFO("%s: Waiting for device to boot", hdev->name);
cda0dd78 2243
129a7693
JH		 2244 err = wait_on_bit_timeout(&data->flags, BTUSB_BOOTING,
2245 TASK_INTERRUPTIBLE,
2246 msecs_to_jiffies(1000));
cda0dd78 2247
fad70972
JH		 2248 if (err == 1) {
2249 BT_ERR("%s: Device boot interrupted", hdev->name);
2250 return -EINTR;
2251 }
cda0dd78 2252
fad70972
JH		 2253 if (err) {
2254 BT_ERR("%s: Device boot timeout", hdev->name);
2255 return -ETIMEDOUT;
cda0dd78
MH		 2256 }
2257
2258 rettime = ktime_get();
2259 delta = ktime_sub(rettime, calltime);
2260 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2261
2262 BT_INFO("%s: Device booted in %llu usecs", hdev->name, duration);
2263
2264 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2265
2266 return 0;
2267}
2268
385a768c
MH		 2269static void btusb_hw_error_intel(struct hci_dev *hdev, u8 code)
2270{
2271 struct sk_buff *skb;
2272 u8 type = 0x00;
2273
2274 BT_ERR("%s: Hardware error 0x%2.2x", hdev->name, code);
2275
2276 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
2277 if (IS_ERR(skb)) {
2278 BT_ERR("%s: Reset after hardware error failed (%ld)",
2279 hdev->name, PTR_ERR(skb));
2280 return;
2281 }
2282 kfree_skb(skb);
2283
2284 skb = __hci_cmd_sync(hdev, 0xfc22, 1, &type, HCI_INIT_TIMEOUT);
2285 if (IS_ERR(skb)) {
2286 BT_ERR("%s: Retrieving Intel exception info failed (%ld)",
2287 hdev->name, PTR_ERR(skb));
2288 return;
2289 }
2290
2291 if (skb->len != 13) {
2292 BT_ERR("%s: Exception info size mismatch", hdev->name);
2293 kfree_skb(skb);
2294 return;
2295 }
2296
2297 if (skb->data[0] != 0x00) {
2298 BT_ERR("%s: Exception info command failure (%02x)",
2299 hdev->name, skb->data[0]);
2300 kfree_skb(skb);
2301 return;
2302 }
2303
2304 BT_ERR("%s: Exception info %s", hdev->name, (char *)(skb->data + 1));
2305
2306 kfree_skb(skb);
2307}
2308
cb8d6597
MH		 2309static int btusb_set_bdaddr_intel(struct hci_dev *hdev, const bdaddr_t *bdaddr)
2310{
2311 struct sk_buff *skb;
2312 long ret;
2313
2314 skb = __hci_cmd_sync(hdev, 0xfc31, 6, bdaddr, HCI_INIT_TIMEOUT);
2315 if (IS_ERR(skb)) {
2316 ret = PTR_ERR(skb);
2317 BT_ERR("%s: changing Intel device address failed (%ld)",
89e7533d 2318 hdev->name, ret);
cb8d6597
MH		 2319 return ret;
2320 }
2321 kfree_skb(skb);
2322
2323 return 0;
2324}
2325
bfbd45e9
THJA		 2326static int btusb_shutdown_intel(struct hci_dev *hdev)
2327{
2328 struct sk_buff *skb;
2329 long ret;
2330
2331 /* Some platforms have an issue with BT LED when the interface is
2332 * down or BT radio is turned off, which takes 5 seconds to BT LED
2333 * goes off. This command turns off the BT LED immediately.
2334 */
2335 skb = __hci_cmd_sync(hdev, 0xfc3f, 0, NULL, HCI_INIT_TIMEOUT);
2336 if (IS_ERR(skb)) {
2337 ret = PTR_ERR(skb);
2338 BT_ERR("%s: turning off Intel device LED failed (%ld)",
2339 hdev->name, ret);
2340 return ret;
2341 }
2342 kfree_skb(skb);
2343
2344 return 0;
2345}
2346
ae8df494
AK		 2347static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
2348 const bdaddr_t *bdaddr)
2349{
2350 struct sk_buff *skb;
2351 u8 buf[8];
2352 long ret;
2353
2354 buf[0] = 0xfe;
2355 buf[1] = sizeof(bdaddr_t);
2356 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
2357
2358 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2359 if (IS_ERR(skb)) {
2360 ret = PTR_ERR(skb);
2361 BT_ERR("%s: changing Marvell device address failed (%ld)",
2362 hdev->name, ret);
2363 return ret;
2364 }
2365 kfree_skb(skb);
2366
2367 return 0;
2368}
2369
18835dfa
MH		 2370static const struct {
2371 u16 subver;
2372 const char *name;
2373} bcm_subver_table[] = {
2374 { 0x210b, "BCM43142A0" }, /* 001.001.011 */
2375 { 0x2112, "BCM4314A0" }, /* 001.001.018 */
2376 { 0x2118, "BCM20702A0" }, /* 001.001.024 */
2377 { 0x2126, "BCM4335A0" }, /* 001.001.038 */
2378 { 0x220e, "BCM20702A1" }, /* 001.002.014 */
2379 { 0x230f, "BCM4354A2" }, /* 001.003.015 */
2380 { 0x4106, "BCM4335B0" }, /* 002.001.006 */
2381 { 0x410e, "BCM20702B0" }, /* 002.001.014 */
2382 { 0x6109, "BCM4335C0" }, /* 003.001.009 */
2383 { 0x610c, "BCM4354" }, /* 003.001.012 */
2384 { }
2385};
2386
c8abb73f
MH		 2387#define BDADDR_BCM20702A0 (&(bdaddr_t) {{0x00, 0xa0, 0x02, 0x70, 0x20, 0x00}})
2388
10d4c673
PG		 2389static int btusb_setup_bcm_patchram(struct hci_dev *hdev)
2390{
2391 struct btusb_data *data = hci_get_drvdata(hdev);
2392 struct usb_device *udev = data->udev;
2393 char fw_name[64];
2394 const struct firmware *fw;
2395 const u8 *fw_ptr;
2396 size_t fw_size;
2397 const struct hci_command_hdr *cmd;
2398 const u8 *cmd_param;
18835dfa
MH		 2399 u16 opcode, subver, rev;
2400 const char *hw_name = NULL;
10d4c673
PG		 2401 struct sk_buff *skb;
2402 struct hci_rp_read_local_version *ver;
c8abb73f 2403 struct hci_rp_read_bd_addr *bda;
10d4c673 2404 long ret;
18835dfa 2405 int i;
10d4c673
PG		 2406
2407 /* Reset */
2408 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
2409 if (IS_ERR(skb)) {
2410 ret = PTR_ERR(skb);
2411 BT_ERR("%s: HCI_OP_RESET failed (%ld)", hdev->name, ret);
18835dfa 2412 return ret;
10d4c673
PG		 2413 }
2414 kfree_skb(skb);
2415
2416 /* Read Local Version Info */
2417 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
2418 HCI_INIT_TIMEOUT);
2419 if (IS_ERR(skb)) {
2420 ret = PTR_ERR(skb);
2421 BT_ERR("%s: HCI_OP_READ_LOCAL_VERSION failed (%ld)",
89e7533d 2422 hdev->name, ret);
18835dfa 2423 return ret;
10d4c673
PG		 2424 }
2425
2426 if (skb->len != sizeof(*ver)) {
2427 BT_ERR("%s: HCI_OP_READ_LOCAL_VERSION event length mismatch",
89e7533d 2428 hdev->name);
10d4c673 2429 kfree_skb(skb);
18835dfa 2430 return -EIO;
10d4c673
PG		 2431 }
2432
89e7533d 2433 ver = (struct hci_rp_read_local_version *)skb->data;
18835dfa
MH		 2434 rev = le16_to_cpu(ver->hci_rev);
2435 subver = le16_to_cpu(ver->lmp_subver);
10d4c673
PG		 2436 kfree_skb(skb);
2437
18835dfa
MH		 2438 for (i = 0; bcm_subver_table[i].name; i++) {
2439 if (subver == bcm_subver_table[i].subver) {
2440 hw_name = bcm_subver_table[i].name;
2441 break;
2442 }
2443 }
2444
2445 BT_INFO("%s: %s (%3.3u.%3.3u.%3.3u) build %4.4u", hdev->name,
2446 hw_name ? : "BCM", (subver & 0x7000) >> 13,
2447 (subver & 0x1f00) >> 8, (subver & 0x00ff), rev & 0x0fff);
2448
2449 snprintf(fw_name, sizeof(fw_name), "brcm/%s-%4.4x-%4.4x.hcd",
2450 hw_name ? : "BCM",
2451 le16_to_cpu(udev->descriptor.idVendor),
2452 le16_to_cpu(udev->descriptor.idProduct));
2453
2454 ret = request_firmware(&fw, fw_name, &hdev->dev);
2455 if (ret < 0) {
2456 BT_INFO("%s: BCM: patch %s not found", hdev->name, fw_name);
2457 return 0;
2458 }
2459
10d4c673
PG		 2460 /* Start Download */
2461 skb = __hci_cmd_sync(hdev, 0xfc2e, 0, NULL, HCI_INIT_TIMEOUT);
2462 if (IS_ERR(skb)) {
2463 ret = PTR_ERR(skb);
2464 BT_ERR("%s: BCM: Download Minidrv command failed (%ld)",
89e7533d 2465 hdev->name, ret);
10d4c673
PG		 2466 goto reset_fw;
2467 }
2468 kfree_skb(skb);
2469
2470 /* 50 msec delay after Download Minidrv completes */
2471 msleep(50);
2472
2473 fw_ptr = fw->data;
2474 fw_size = fw->size;
2475
2476 while (fw_size >= sizeof(*cmd)) {
89e7533d 2477 cmd = (struct hci_command_hdr *)fw_ptr;
10d4c673
PG		 2478 fw_ptr += sizeof(*cmd);
2479 fw_size -= sizeof(*cmd);
2480
2481 if (fw_size < cmd->plen) {
2482 BT_ERR("%s: BCM: patch %s is corrupted",
89e7533d 2483 hdev->name, fw_name);
10d4c673
PG		 2484 ret = -EINVAL;
2485 goto reset_fw;
2486 }
2487
2488 cmd_param = fw_ptr;
2489 fw_ptr += cmd->plen;
2490 fw_size -= cmd->plen;
2491
2492 opcode = le16_to_cpu(cmd->opcode);
2493
2494 skb = __hci_cmd_sync(hdev, opcode, cmd->plen, cmd_param,
2495 HCI_INIT_TIMEOUT);
2496 if (IS_ERR(skb)) {
2497 ret = PTR_ERR(skb);
2498 BT_ERR("%s: BCM: patch command %04x failed (%ld)",
89e7533d 2499 hdev->name, opcode, ret);
10d4c673
PG		 2500 goto reset_fw;
2501 }
2502 kfree_skb(skb);
2503 }
2504
2505 /* 250 msec delay after Launch Ram completes */
2506 msleep(250);
2507
2508reset_fw:
2509 /* Reset */
2510 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
2511 if (IS_ERR(skb)) {
2512 ret = PTR_ERR(skb);
2513 BT_ERR("%s: HCI_OP_RESET failed (%ld)", hdev->name, ret);
2514 goto done;
2515 }
2516 kfree_skb(skb);
2517
2518 /* Read Local Version Info */
2519 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
2520 HCI_INIT_TIMEOUT);
2521 if (IS_ERR(skb)) {
2522 ret = PTR_ERR(skb);
2523 BT_ERR("%s: HCI_OP_READ_LOCAL_VERSION failed (%ld)",
89e7533d 2524 hdev->name, ret);
10d4c673
PG		 2525 goto done;
2526 }
2527
2528 if (skb->len != sizeof(*ver)) {
2529 BT_ERR("%s: HCI_OP_READ_LOCAL_VERSION event length mismatch",
89e7533d 2530 hdev->name);
10d4c673
PG		 2531 kfree_skb(skb);
2532 ret = -EIO;
2533 goto done;
2534 }
2535
89e7533d 2536 ver = (struct hci_rp_read_local_version *)skb->data;
18835dfa
MH		 2537 rev = le16_to_cpu(ver->hci_rev);
2538 subver = le16_to_cpu(ver->lmp_subver);
10d4c673
PG		 2539 kfree_skb(skb);
2540
18835dfa
MH		 2541 BT_INFO("%s: %s (%3.3u.%3.3u.%3.3u) build %4.4u", hdev->name,
2542 hw_name ? : "BCM", (subver & 0x7000) >> 13,
2543 (subver & 0x1f00) >> 8, (subver & 0x00ff), rev & 0x0fff);
2544
c8abb73f
MH		 2545 /* Read BD Address */
2546 skb = __hci_cmd_sync(hdev, HCI_OP_READ_BD_ADDR, 0, NULL,
2547 HCI_INIT_TIMEOUT);
2548 if (IS_ERR(skb)) {
2549 ret = PTR_ERR(skb);
2550 BT_ERR("%s: HCI_OP_READ_BD_ADDR failed (%ld)",
89e7533d 2551 hdev->name, ret);
c8abb73f
MH		 2552 goto done;
2553 }
2554
2555 if (skb->len != sizeof(*bda)) {
2556 BT_ERR("%s: HCI_OP_READ_BD_ADDR event length mismatch",
89e7533d 2557 hdev->name);
c8abb73f
MH		 2558 kfree_skb(skb);
2559 ret = -EIO;
2560 goto done;
2561 }
2562
89e7533d 2563 bda = (struct hci_rp_read_bd_addr *)skb->data;
c8abb73f
MH		 2564 if (bda->status) {
2565 BT_ERR("%s: HCI_OP_READ_BD_ADDR error status (%02x)",
2566 hdev->name, bda->status);
2567 kfree_skb(skb);
2568 ret = -bt_to_errno(bda->status);
2569 goto done;
2570 }
2571
2572 /* The address 00:20:70:02:A0:00 indicates a BCM20702A0 controller
2573 * with no configured address.
2574 */
849e5086 2575 if (!bacmp(&bda->bdaddr, BDADDR_BCM20702A0)) {
c8abb73f
MH		 2576 BT_INFO("%s: BCM: using default device address (%pMR)",
2577 hdev->name, &bda->bdaddr);
849e5086
MH		 2578 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
2579 }
c8abb73f
MH		 2580
2581 kfree_skb(skb);
2582
10d4c673
PG		 2583done:
2584 release_firmware(fw);
2585
2586 return ret;
2587}
2588
abbaf50e
MH		 2589static int btusb_set_bdaddr_bcm(struct hci_dev *hdev, const bdaddr_t *bdaddr)
2590{
2591 struct sk_buff *skb;
2592 long ret;
2593
2594 skb = __hci_cmd_sync(hdev, 0xfc01, 6, bdaddr, HCI_INIT_TIMEOUT);
2595 if (IS_ERR(skb)) {
2596 ret = PTR_ERR(skb);
2597 BT_ERR("%s: BCM: Change address command failed (%ld)",
89e7533d 2598 hdev->name, ret);
abbaf50e
MH		 2599 return ret;
2600 }
2601 kfree_skb(skb);
2602
2603 return 0;
2604}
2605
5859223e
TK		 2606static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
2607 const bdaddr_t *bdaddr)
2608{
2609 struct sk_buff *skb;
2610 u8 buf[10];
2611 long ret;
2612
2613 buf[0] = 0x01;
2614 buf[1] = 0x01;
2615 buf[2] = 0x00;
2616 buf[3] = sizeof(bdaddr_t);
2617 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
2618
2619 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2620 if (IS_ERR(skb)) {
2621 ret = PTR_ERR(skb);
2622 BT_ERR("%s: Change address command failed (%ld)",
2623 hdev->name, ret);
2624 return ret;
2625 }
2626 kfree_skb(skb);
2627
2628 return 0;
2629}
2630
5e23b923 2631static int btusb_probe(struct usb_interface *intf,
89e7533d 2632 const struct usb_device_id *id)
5e23b923
MH		 2633{
2634 struct usb_endpoint_descriptor *ep_desc;
2635 struct btusb_data *data;
2636 struct hci_dev *hdev;
2637 int i, err;
2638
2639 BT_DBG("intf %p id %p", intf, id);
2640
cfeb4145 2641 /* interface numbers are hardcoded in the spec */
5e23b923
MH		 2642 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
2643 return -ENODEV;
2644
2645 if (!id->driver_info) {
2646 const struct usb_device_id *match;
89e7533d 2647
5e23b923
MH		 2648 match = usb_match_id(intf, blacklist_table);
2649 if (match)
2650 id = match;
2651 }
2652
cfeb4145
MH		 2653 if (id->driver_info == BTUSB_IGNORE)
2654 return -ENODEV;
2655
2d25f8b4
SL		 2656 if (id->driver_info & BTUSB_ATH3012) {
2657 struct usb_device *udev = interface_to_usbdev(intf);
2658
2659 /* Old firmware would otherwise let ath3k driver load
2660 * patch and sysconfig files */
2661 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
2662 return -ENODEV;
2663 }
2664
98921dbd 2665 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
5e23b923
MH		 2666 if (!data)
2667 return -ENOMEM;
2668
2669 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2670 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2671
2672 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
2673 data->intr_ep = ep_desc;
2674 continue;
2675 }
2676
2677 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
2678 data->bulk_tx_ep = ep_desc;
2679 continue;
2680 }
2681
2682 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
2683 data->bulk_rx_ep = ep_desc;
2684 continue;
2685 }
2686 }
2687
98921dbd 2688 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
5e23b923 2689 return -ENODEV;
5e23b923 2690
893ba544
MH		 2691 if (id->driver_info & BTUSB_AMP) {
2692 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
2693 data->cmdreq = 0x2b;
2694 } else {
2695 data->cmdreq_type = USB_TYPE_CLASS;
2696 data->cmdreq = 0x00;
2697 }
7a9d4020 2698
5e23b923 2699 data->udev = interface_to_usbdev(intf);
5fbcd260 2700 data->intf = intf;
5e23b923 2701
5e23b923 2702 INIT_WORK(&data->work, btusb_work);
7bee549e 2703 INIT_WORK(&data->waker, btusb_waker);
803b5836
MH		 2704 init_usb_anchor(&data->deferred);
2705 init_usb_anchor(&data->tx_anchor);
7bee549e 2706 spin_lock_init(&data->txlock);
5e23b923 2707
5e23b923
MH		 2708 init_usb_anchor(&data->intr_anchor);
2709 init_usb_anchor(&data->bulk_anchor);
9bfa35fe 2710 init_usb_anchor(&data->isoc_anchor);
803b5836 2711 spin_lock_init(&data->rxlock);
5e23b923 2712
cda0dd78
MH		 2713 if (id->driver_info & BTUSB_INTEL_NEW) {
2714 data->recv_event = btusb_recv_event_intel;
2715 data->recv_bulk = btusb_recv_bulk_intel;
2716 set_bit(BTUSB_BOOTLOADER, &data->flags);
2717 } else {
2718 data->recv_event = hci_recv_frame;
2719 data->recv_bulk = btusb_recv_bulk;
2720 }
2cbd3f5c 2721
5e23b923 2722 hdev = hci_alloc_dev();
98921dbd 2723 if (!hdev)
5e23b923 2724 return -ENOMEM;
5e23b923 2725
c13854ce 2726 hdev->bus = HCI_USB;
155961e8 2727 hci_set_drvdata(hdev, data);
5e23b923 2728
893ba544
MH		 2729 if (id->driver_info & BTUSB_AMP)
2730 hdev->dev_type = HCI_AMP;
2731 else
2732 hdev->dev_type = HCI_BREDR;
2733
5e23b923
MH		 2734 data->hdev = hdev;
2735
2736 SET_HCIDEV_DEV(hdev, &intf->dev);
2737
9f8f962c
MH		 2738 hdev->open = btusb_open;
2739 hdev->close = btusb_close;
2740 hdev->flush = btusb_flush;
2741 hdev->send = btusb_send_frame;
2742 hdev->notify = btusb_notify;
2743
2744 if (id->driver_info & BTUSB_BCM92035)
2745 hdev->setup = btusb_setup_bcm92035;
5e23b923 2746
abbaf50e 2747 if (id->driver_info & BTUSB_BCM_PATCHRAM) {
10d4c673 2748 hdev->setup = btusb_setup_bcm_patchram;
abbaf50e 2749 hdev->set_bdaddr = btusb_set_bdaddr_bcm;
27c3fbe0 2750 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
abbaf50e 2751 }
10d4c673 2752
cb8d6597 2753 if (id->driver_info & BTUSB_INTEL) {
dffd30ee 2754 hdev->setup = btusb_setup_intel;
bfbd45e9 2755 hdev->shutdown = btusb_shutdown_intel;
cb8d6597 2756 hdev->set_bdaddr = btusb_set_bdaddr_intel;
c33fb9b4 2757 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
cb8d6597 2758 }
dffd30ee 2759
cda0dd78
MH		 2760 if (id->driver_info & BTUSB_INTEL_NEW) {
2761 hdev->send = btusb_send_frame_intel;
2762 hdev->setup = btusb_setup_intel_new;
385a768c 2763 hdev->hw_error = btusb_hw_error_intel;
cda0dd78 2764 hdev->set_bdaddr = btusb_set_bdaddr_intel;
b970c5ba 2765 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
cda0dd78
MH		 2766 }
2767
ae8df494
AK		 2768 if (id->driver_info & BTUSB_MARVELL)
2769 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
2770
661cf88a
MH		 2771 if (id->driver_info & BTUSB_SWAVE) {
2772 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
d57dbe77 2773 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
661cf88a 2774 }
d57dbe77 2775
40df783d
MH		 2776 if (id->driver_info & BTUSB_INTEL_BOOT)
2777 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
2778
79f0c87d 2779 if (id->driver_info & BTUSB_ATH3012) {
5859223e 2780 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
79f0c87d
JP		 2781 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
2782 }
5859223e 2783
893ba544
MH		 2784 if (id->driver_info & BTUSB_AMP) {
2785 /* AMP controllers do not support SCO packets */
2786 data->isoc = NULL;
2787 } else {
2788 /* Interface numbers are hardcoded in the specification */
2789 data->isoc = usb_ifnum_to_if(data->udev, 1);
2790 }
9bfa35fe 2791
7a9d4020 2792 if (!reset)
a6c511c6 2793 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
cfeb4145
MH		 2794
2795 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
2796 if (!disable_scofix)
2797 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
2798 }
2799
9bfa35fe
MH		 2800 if (id->driver_info & BTUSB_BROKEN_ISOC)
2801 data->isoc = NULL;
2802
7a9d4020
MH		 2803 if (id->driver_info & BTUSB_DIGIANSWER) {
2804 data->cmdreq_type = USB_TYPE_VENDOR;
a6c511c6 2805 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
7a9d4020
MH		 2806 }
2807
2808 if (id->driver_info & BTUSB_CSR) {
2809 struct usb_device *udev = data->udev;
81cac64b 2810 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
7a9d4020
MH		 2811
2812 /* Old firmware would otherwise execute USB reset */
81cac64b 2813 if (bcdDevice < 0x117)
a6c511c6 2814 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
81cac64b
MH		 2815
2816 /* Fake CSR devices with broken commands */
2817 if (bcdDevice <= 0x100)
2818 hdev->setup = btusb_setup_csr;
7a9d4020
MH		 2819 }
2820
cfeb4145 2821 if (id->driver_info & BTUSB_SNIFFER) {
9bfa35fe 2822 struct usb_device *udev = data->udev;
cfeb4145 2823
7a9d4020 2824 /* New sniffer firmware has crippled HCI interface */
cfeb4145
MH		 2825 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
2826 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
2827 }
2828
3a5ef20c
MH		 2829 if (id->driver_info & BTUSB_INTEL_BOOT) {
2830 /* A bug in the bootloader causes that interrupt interface is
2831 * only enabled after receiving SetInterface(0, AltSetting=0).
2832 */
2833 err = usb_set_interface(data->udev, 0, 0);
2834 if (err < 0) {
2835 BT_ERR("failed to set interface 0, alt 0 %d", err);
2836 hci_free_dev(hdev);
2837 return err;
2838 }
2839 }
2840
9bfa35fe
MH		 2841 if (data->isoc) {
2842 err = usb_driver_claim_interface(&btusb_driver,
89e7533d 2843 data->isoc, data);
9bfa35fe
MH		 2844 if (err < 0) {
2845 hci_free_dev(hdev);
9bfa35fe
MH		 2846 return err;
2847 }
2848 }
2849
5e23b923
MH		 2850 err = hci_register_dev(hdev);
2851 if (err < 0) {
2852 hci_free_dev(hdev);
5e23b923
MH		 2853 return err;
2854 }
2855
2856 usb_set_intfdata(intf, data);
2857
2858 return 0;
2859}
2860
2861static void btusb_disconnect(struct usb_interface *intf)
2862{
2863 struct btusb_data *data = usb_get_intfdata(intf);
2864 struct hci_dev *hdev;
2865
2866 BT_DBG("intf %p", intf);
2867
2868 if (!data)
2869 return;
2870
2871 hdev = data->hdev;
5fbcd260
MH		 2872 usb_set_intfdata(data->intf, NULL);
2873
2874 if (data->isoc)
2875 usb_set_intfdata(data->isoc, NULL);
5e23b923
MH		 2876
2877 hci_unregister_dev(hdev);
2878
5fbcd260
MH		 2879 if (intf == data->isoc)
2880 usb_driver_release_interface(&btusb_driver, data->intf);
2881 else if (data->isoc)
2882 usb_driver_release_interface(&btusb_driver, data->isoc);
2883
5e23b923
MH		 2884 hci_free_dev(hdev);
2885}
2886
7bee549e 2887#ifdef CONFIG_PM
6a88adf2
MH		 2888static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
2889{
2890 struct btusb_data *data = usb_get_intfdata(intf);
2891
2892 BT_DBG("intf %p", intf);
2893
2894 if (data->suspend_count++)
2895 return 0;
2896
7bee549e 2897 spin_lock_irq(&data->txlock);
5b1b0b81 2898 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
7bee549e
ON		 2899 set_bit(BTUSB_SUSPENDING, &data->flags);
2900 spin_unlock_irq(&data->txlock);
2901 } else {
2902 spin_unlock_irq(&data->txlock);
2903 data->suspend_count--;
2904 return -EBUSY;
2905 }
2906
6a88adf2
MH		 2907 cancel_work_sync(&data->work);
2908
7bee549e 2909 btusb_stop_traffic(data);
6a88adf2
MH		 2910 usb_kill_anchored_urbs(&data->tx_anchor);
2911
6a88adf2
MH		 2912 return 0;
2913}
2914
7bee549e
ON		 2915static void play_deferred(struct btusb_data *data)
2916{
2917 struct urb *urb;
2918 int err;
2919
2920 while ((urb = usb_get_from_anchor(&data->deferred))) {
2921 err = usb_submit_urb(urb, GFP_ATOMIC);
2922 if (err < 0)
2923 break;
2924
2925 data->tx_in_flight++;
2926 }
2927 usb_scuttle_anchored_urbs(&data->deferred);
2928}
2929
6a88adf2
MH		 2930static int btusb_resume(struct usb_interface *intf)
2931{
2932 struct btusb_data *data = usb_get_intfdata(intf);
2933 struct hci_dev *hdev = data->hdev;
7bee549e 2934 int err = 0;
6a88adf2
MH		 2935
2936 BT_DBG("intf %p", intf);
2937
2938 if (--data->suspend_count)
2939 return 0;
2940
2941 if (!test_bit(HCI_RUNNING, &hdev->flags))
7bee549e 2942 goto done;
6a88adf2
MH		 2943
2944 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
2945 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
2946 if (err < 0) {
2947 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
7bee549e 2948 goto failed;
6a88adf2
MH		 2949 }
2950 }
2951
2952 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
43c2e57f
MH		 2953 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
2954 if (err < 0) {
6a88adf2 2955 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
7bee549e
ON		 2956 goto failed;
2957 }
2958
2959 btusb_submit_bulk_urb(hdev, GFP_NOIO);
6a88adf2
MH		 2960 }
2961
2962 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2963 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
2964 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2965 else
2966 btusb_submit_isoc_urb(hdev, GFP_NOIO);
2967 }
2968
7bee549e
ON		 2969 spin_lock_irq(&data->txlock);
2970 play_deferred(data);
2971 clear_bit(BTUSB_SUSPENDING, &data->flags);
2972 spin_unlock_irq(&data->txlock);
2973 schedule_work(&data->work);
2974
6a88adf2 2975 return 0;
7bee549e
ON		 2976
2977failed:
2978 usb_scuttle_anchored_urbs(&data->deferred);
2979done:
2980 spin_lock_irq(&data->txlock);
2981 clear_bit(BTUSB_SUSPENDING, &data->flags);
2982 spin_unlock_irq(&data->txlock);
2983
2984 return err;
6a88adf2 2985}
7bee549e 2986#endif
6a88adf2 2987
5e23b923
MH		 2988static struct usb_driver btusb_driver = {
2989 .name = "btusb",
2990 .probe = btusb_probe,
2991 .disconnect = btusb_disconnect,
7bee549e 2992#ifdef CONFIG_PM
6a88adf2
MH		 2993 .suspend = btusb_suspend,
2994 .resume = btusb_resume,
7bee549e 2995#endif
5e23b923 2996 .id_table = btusb_table,
7bee549e 2997 .supports_autosuspend = 1,
e1f12eb6 2998 .disable_hub_initiated_lpm = 1,
5e23b923
MH		 2999};
3000
93f1508c 3001module_usb_driver(btusb_driver);
5e23b923 3002
cfeb4145
MH		 3003module_param(disable_scofix, bool, 0644);
3004MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
3005
3006module_param(force_scofix, bool, 0644);
3007MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
3008
3009module_param(reset, bool, 0644);
3010MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
3011
5e23b923
MH		 3012MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
3013MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
3014MODULE_VERSION(VERSION);
3015MODULE_LICENSE("GPL");
Linux kernel - Deliverables
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