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Bluetooth: Introduce HCI_QUIRK_FIXUP_INQUIRY_MODE option
[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
7bee549e 31#define VERSION "0.6"
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
5e23b923 53
54265202 54static const struct usb_device_id btusb_table[] = {
5e23b923
MH		 55 /* Generic Bluetooth USB device */
56 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
57
1fa6535f
HR		 58 /* Apple-specific (Broadcom) devices */
59 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01) },
60
178c059e
CYC		 61 /* MediaTek MT76x0E */
62 { USB_DEVICE(0x0e8d, 0x763f) },
63
c510eae3 64 /* Broadcom SoftSailing reporting vendor specific */
2e8b5063 65 { USB_DEVICE(0x0a5c, 0x21e1) },
c510eae3 66
3cd01976
NI		 67 /* Apple MacBookPro 7,1 */
68 { USB_DEVICE(0x05ac, 0x8213) },
69
0a79f674
CL		 70 /* Apple iMac11,1 */
71 { USB_DEVICE(0x05ac, 0x8215) },
72
9c047157
NI		 73 /* Apple MacBookPro6,2 */
74 { USB_DEVICE(0x05ac, 0x8218) },
75
3e3ede7d
EH		 76 /* Apple MacBookAir3,1, MacBookAir3,2 */
77 { USB_DEVICE(0x05ac, 0x821b) },
78
a63b723d
PAVM		 79 /* Apple MacBookAir4,1 */
80 { USB_DEVICE(0x05ac, 0x821f) },
81
88d377b6
MAP		 82 /* Apple MacBookPro8,2 */
83 { USB_DEVICE(0x05ac, 0x821a) },
84
f78b6826
JK		 85 /* Apple MacMini5,1 */
86 { USB_DEVICE(0x05ac, 0x8281) },
87
cfeb4145 88 /* AVM BlueFRITZ! USB v2.0 */
4fcef8ed 89 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE },
cfeb4145
MH		 90
91 /* Bluetooth Ultraport Module from IBM */
92 { USB_DEVICE(0x04bf, 0x030a) },
93
94 /* ALPS Modules with non-standard id */
95 { USB_DEVICE(0x044e, 0x3001) },
96 { USB_DEVICE(0x044e, 0x3002) },
97
98 /* Ericsson with non-standard id */
99 { USB_DEVICE(0x0bdb, 0x1002) },
100
101 /* Canyon CN-BTU1 with HID interfaces */
7a9d4020 102 { USB_DEVICE(0x0c10, 0x0000) },
cfeb4145 103
d13431ca 104 /* Broadcom BCM20702A0 */
0b880062
AS		 105 { USB_DEVICE(0x0489, 0xe042) },
106 { USB_DEVICE(0x04ca, 0x2003) },
1ee3ff61 107 { USB_DEVICE(0x0b05, 0x17b5) },
38a172be 108 { USB_DEVICE(0x0b05, 0x17cb) },
d13431ca 109 { USB_DEVICE(0x413c, 0x8197) },
a86c02ea
F		 110 { USB_DEVICE(0x13d3, 0x3404),
111 .driver_info = BTUSB_BCM_PATCHRAM },
d13431ca 112
98514036 113 /* Foxconn - Hon Hai */
6029ddc2
HS		 114 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01),
115 .driver_info = BTUSB_BCM_PATCHRAM },
98514036 116
0b880062 117 /* Broadcom devices with vendor specific id */
10d4c673
PG		 118 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01),
119 .driver_info = BTUSB_BCM_PATCHRAM },
92c385f4 120
c2aef6e8
MH		 121 /* ASUSTek Computer - Broadcom based */
122 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01) },
123
5bcecf32
KB		 124 /* Belkin F8065bf - Broadcom based */
125 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01) },
126
9113bfd8
JK		 127 /* IMC Networks - Broadcom based */
128 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01) },
129
40df783d 130 /* Intel Bluetooth USB Bootloader (RAM module) */
d92f2df0
MH		 131 { USB_DEVICE(0x8087, 0x0a5a),
132 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
40df783d 133
5e23b923
MH		 134 { } /* Terminating entry */
135};
136
137MODULE_DEVICE_TABLE(usb, btusb_table);
138
54265202 139static const struct usb_device_id blacklist_table[] = {
cfeb4145
MH		 140 /* CSR BlueCore devices */
141 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
142
143 /* Broadcom BCM2033 without firmware */
144 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
145
be93112a 146 /* Atheros 3011 with sflash firmware */
0b880062
AS		 147 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
148 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
149 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
be93112a 150 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
6eda541d 151 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
2a7bcccc 152 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
be93112a 153
509e7861
CYC		 154 /* Atheros AR9285 Malbec with sflash firmware */
155 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
156
d9f51b51 157 /* Atheros 3012 with sflash firmware */
0b880062
AS		 158 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
159 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
160 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
161 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
162 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
4b552bc9 163 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
0b880062
AS		 164 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
165 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
166 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
167 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
1fb4e09a 168 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
0b880062
AS		 169 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
170 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
134d3b35 171 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
0b880062
AS		 172 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
173 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
89d2975f 174 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
a735f9e2 175 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
d66629c1 176 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
2d25f8b4 177 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
94a32d10 178 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
07c0ea87 179 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
b131237c 180 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
1e56f1eb 181 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
0b880062 182 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
ebaf5795 183 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
0b880062 184 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
ac71311e 185 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
0a3658cc 186 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
0b880062
AS		 187 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
188 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
eed307e2 189 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
5b77a1f3 190 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
3bb30a7c 191 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
fa2f1394 192 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
d9f51b51 193
e9036e33
CYC		 194 /* Atheros AR5BBU12 with sflash firmware */
195 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
196
85d59726 197 /* Atheros AR5BBU12 with sflash firmware */
bc21fde2 198 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
0b880062 199 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
85d59726 200
cfeb4145 201 /* Broadcom BCM2035 */
7a9d4020 202 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
0b880062
AS		 203 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
204 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 205
206 /* Broadcom BCM2045 */
7a9d4020
MH		 207 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
208 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
bdbef3d6 209
cfeb4145 210 /* IBM/Lenovo ThinkPad with Broadcom chip */
7a9d4020
MH		 211 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
212 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 213
214 /* HP laptop with Broadcom chip */
7a9d4020 215 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145
MH		 216
217 /* Dell laptop with Broadcom chip */
7a9d4020 218 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 219
5ddd4a60 220 /* Dell Wireless 370 and 410 devices */
7a9d4020 221 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
5ddd4a60 222 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 223
7a9d4020
MH		 224 /* Belkin F8T012 and F8T013 devices */
225 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
226 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
cfeb4145 227
5ddd4a60
MH		 228 /* Asus WL-BTD202 device */
229 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
230
231 /* Kensington Bluetooth USB adapter */
232 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
233
cfeb4145
MH		 234 /* RTX Telecom based adapters with buggy SCO support */
235 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
236 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
237
238 /* CONWISE Technology based adapters with buggy SCO support */
239 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
240
4fcef8ed
MH		 241 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
242 { USB_DEVICE(0x1300, 0x0001), .driver_info = BTUSB_SWAVE },
243
cfeb4145
MH		 244 /* Digianswer devices */
245 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
246 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
247
248 /* CSR BlueCore Bluetooth Sniffer */
4f64fa80
MH		 249 { USB_DEVICE(0x0a12, 0x0002),
250 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
cfeb4145
MH		 251
252 /* Frontline ComProbe Bluetooth Sniffer */
4f64fa80
MH		 253 { USB_DEVICE(0x16d3, 0x0002),
254 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
cfeb4145 255
dffd30ee
THJA		 256 /* Intel Bluetooth device */
257 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
ef4e5e4a 258 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL },
dffd30ee 259
ae8df494
AK		 260 /* Marvell device */
261 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
262 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
263
5e23b923
MH		 264 { } /* Terminating entry */
265};
266
9bfa35fe
MH		 267#define BTUSB_MAX_ISOC_FRAMES 10
268
5e23b923
MH		 269#define BTUSB_INTR_RUNNING 0
270#define BTUSB_BULK_RUNNING 1
9bfa35fe 271#define BTUSB_ISOC_RUNNING 2
7bee549e 272#define BTUSB_SUSPENDING 3
08b8b6c4 273#define BTUSB_DID_ISO_RESUME 4
5e23b923
MH		 274
275struct btusb_data {
276 struct hci_dev *hdev;
277 struct usb_device *udev;
5fbcd260 278 struct usb_interface *intf;
9bfa35fe 279 struct usb_interface *isoc;
5e23b923 280
5e23b923
MH		 281 unsigned long flags;
282
283 struct work_struct work;
7bee549e 284 struct work_struct waker;
5e23b923 285
803b5836 286 struct usb_anchor deferred;
5e23b923 287 struct usb_anchor tx_anchor;
803b5836
MH		 288 int tx_in_flight;
289 spinlock_t txlock;
290
5e23b923
MH		 291 struct usb_anchor intr_anchor;
292 struct usb_anchor bulk_anchor;
9bfa35fe 293 struct usb_anchor isoc_anchor;
803b5836
MH		 294 spinlock_t rxlock;
295
296 struct sk_buff *evt_skb;
297 struct sk_buff *acl_skb;
298 struct sk_buff *sco_skb;
5e23b923
MH		 299
300 struct usb_endpoint_descriptor *intr_ep;
301 struct usb_endpoint_descriptor *bulk_tx_ep;
302 struct usb_endpoint_descriptor *bulk_rx_ep;
9bfa35fe
MH		 303 struct usb_endpoint_descriptor *isoc_tx_ep;
304 struct usb_endpoint_descriptor *isoc_rx_ep;
305
7a9d4020
MH		 306 __u8 cmdreq_type;
307
43c2e57f 308 unsigned int sco_num;
9bfa35fe 309 int isoc_altsetting;
6a88adf2 310 int suspend_count;
2cbd3f5c
MH		 311
312 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
5e23b923
MH		 313};
314
803b5836
MH		 315static inline void btusb_free_frags(struct btusb_data *data)
316{
317 unsigned long flags;
318
319 spin_lock_irqsave(&data->rxlock, flags);
320
321 kfree_skb(data->evt_skb);
322 data->evt_skb = NULL;
323
324 kfree_skb(data->acl_skb);
325 data->acl_skb = NULL;
326
327 kfree_skb(data->sco_skb);
328 data->sco_skb = NULL;
329
330 spin_unlock_irqrestore(&data->rxlock, flags);
331}
332
1ffa4ad0
MH		 333static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
334{
803b5836
MH		 335 struct sk_buff *skb;
336 int err = 0;
337
338 spin_lock(&data->rxlock);
339 skb = data->evt_skb;
340
341 while (count) {
342 int len;
343
344 if (!skb) {
345 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
346 if (!skb) {
347 err = -ENOMEM;
348 break;
349 }
350
351 bt_cb(skb)->pkt_type = HCI_EVENT_PKT;
352 bt_cb(skb)->expect = HCI_EVENT_HDR_SIZE;
353 }
354
355 len = min_t(uint, bt_cb(skb)->expect, count);
356 memcpy(skb_put(skb, len), buffer, len);
357
358 count -= len;
359 buffer += len;
360 bt_cb(skb)->expect -= len;
361
362 if (skb->len == HCI_EVENT_HDR_SIZE) {
363 /* Complete event header */
364 bt_cb(skb)->expect = hci_event_hdr(skb)->plen;
365
366 if (skb_tailroom(skb) < bt_cb(skb)->expect) {
367 kfree_skb(skb);
368 skb = NULL;
369
370 err = -EILSEQ;
371 break;
372 }
373 }
374
375 if (bt_cb(skb)->expect == 0) {
376 /* Complete frame */
377 hci_recv_frame(data->hdev, skb);
378 skb = NULL;
379 }
380 }
381
382 data->evt_skb = skb;
383 spin_unlock(&data->rxlock);
384
385 return err;
1ffa4ad0
MH		 386}
387
388static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
389{
803b5836
MH		 390 struct sk_buff *skb;
391 int err = 0;
392
393 spin_lock(&data->rxlock);
394 skb = data->acl_skb;
395
396 while (count) {
397 int len;
398
399 if (!skb) {
400 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
401 if (!skb) {
402 err = -ENOMEM;
403 break;
404 }
405
406 bt_cb(skb)->pkt_type = HCI_ACLDATA_PKT;
407 bt_cb(skb)->expect = HCI_ACL_HDR_SIZE;
408 }
409
410 len = min_t(uint, bt_cb(skb)->expect, count);
411 memcpy(skb_put(skb, len), buffer, len);
412
413 count -= len;
414 buffer += len;
415 bt_cb(skb)->expect -= len;
416
417 if (skb->len == HCI_ACL_HDR_SIZE) {
418 __le16 dlen = hci_acl_hdr(skb)->dlen;
419
420 /* Complete ACL header */
421 bt_cb(skb)->expect = __le16_to_cpu(dlen);
422
423 if (skb_tailroom(skb) < bt_cb(skb)->expect) {
424 kfree_skb(skb);
425 skb = NULL;
426
427 err = -EILSEQ;
428 break;
429 }
430 }
431
432 if (bt_cb(skb)->expect == 0) {
433 /* Complete frame */
434 hci_recv_frame(data->hdev, skb);
435 skb = NULL;
436 }
437 }
438
439 data->acl_skb = skb;
440 spin_unlock(&data->rxlock);
441
442 return err;
1ffa4ad0
MH		 443}
444
445static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
446{
803b5836
MH		 447 struct sk_buff *skb;
448 int err = 0;
449
450 spin_lock(&data->rxlock);
451 skb = data->sco_skb;
452
453 while (count) {
454 int len;
455
456 if (!skb) {
457 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
458 if (!skb) {
459 err = -ENOMEM;
460 break;
461 }
462
463 bt_cb(skb)->pkt_type = HCI_SCODATA_PKT;
464 bt_cb(skb)->expect = HCI_SCO_HDR_SIZE;
465 }
466
467 len = min_t(uint, bt_cb(skb)->expect, count);
468 memcpy(skb_put(skb, len), buffer, len);
469
470 count -= len;
471 buffer += len;
472 bt_cb(skb)->expect -= len;
473
474 if (skb->len == HCI_SCO_HDR_SIZE) {
475 /* Complete SCO header */
476 bt_cb(skb)->expect = hci_sco_hdr(skb)->dlen;
477
478 if (skb_tailroom(skb) < bt_cb(skb)->expect) {
479 kfree_skb(skb);
480 skb = NULL;
481
482 err = -EILSEQ;
483 break;
484 }
485 }
486
487 if (bt_cb(skb)->expect == 0) {
488 /* Complete frame */
489 hci_recv_frame(data->hdev, skb);
490 skb = NULL;
491 }
492 }
493
494 data->sco_skb = skb;
495 spin_unlock(&data->rxlock);
496
497 return err;
1ffa4ad0
MH		 498}
499
5e23b923
MH		 500static void btusb_intr_complete(struct urb *urb)
501{
502 struct hci_dev *hdev = urb->context;
155961e8 503 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 504 int err;
505
89e7533d
MH		 506 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
507 urb->actual_length);
5e23b923
MH		 508
509 if (!test_bit(HCI_RUNNING, &hdev->flags))
510 return;
511
512 if (urb->status == 0) {
9bfa35fe
MH		 513 hdev->stat.byte_rx += urb->actual_length;
514
1ffa4ad0
MH		 515 if (btusb_recv_intr(data, urb->transfer_buffer,
516 urb->actual_length) < 0) {
5e23b923
MH		 517 BT_ERR("%s corrupted event packet", hdev->name);
518 hdev->stat.err_rx++;
519 }
85560c4a
CC		 520 } else if (urb->status == -ENOENT) {
521 /* Avoid suspend failed when usb_kill_urb */
522 return;
5e23b923
MH		 523 }
524
525 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
526 return;
527
7bee549e 528 usb_mark_last_busy(data->udev);
5e23b923
MH		 529 usb_anchor_urb(urb, &data->intr_anchor);
530
531 err = usb_submit_urb(urb, GFP_ATOMIC);
532 if (err < 0) {
4935f1c1
PB		 533 /* -EPERM: urb is being killed;
534 * -ENODEV: device got disconnected */
535 if (err != -EPERM && err != -ENODEV)
61faddf6 536 BT_ERR("%s urb %p failed to resubmit (%d)",
89e7533d 537 hdev->name, urb, -err);
5e23b923
MH		 538 usb_unanchor_urb(urb);
539 }
540}
541
2eda66f4 542static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
5e23b923 543{
155961e8 544 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 545 struct urb *urb;
546 unsigned char *buf;
547 unsigned int pipe;
548 int err, size;
549
550 BT_DBG("%s", hdev->name);
551
9bfa35fe
MH		 552 if (!data->intr_ep)
553 return -ENODEV;
554
2eda66f4 555 urb = usb_alloc_urb(0, mem_flags);
5e23b923
MH		 556 if (!urb)
557 return -ENOMEM;
558
559 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
560
2eda66f4 561 buf = kmalloc(size, mem_flags);
5e23b923
MH		 562 if (!buf) {
563 usb_free_urb(urb);
564 return -ENOMEM;
565 }
566
567 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
568
569 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
89e7533d 570 btusb_intr_complete, hdev, data->intr_ep->bInterval);
5e23b923
MH		 571
572 urb->transfer_flags |= URB_FREE_BUFFER;
573
574 usb_anchor_urb(urb, &data->intr_anchor);
575
2eda66f4 576 err = usb_submit_urb(urb, mem_flags);
5e23b923 577 if (err < 0) {
d4b8d1c9
PB		 578 if (err != -EPERM && err != -ENODEV)
579 BT_ERR("%s urb %p submission failed (%d)",
89e7533d 580 hdev->name, urb, -err);
5e23b923 581 usb_unanchor_urb(urb);
5e23b923
MH		 582 }
583
584 usb_free_urb(urb);
585
586 return err;
587}
588
589static void btusb_bulk_complete(struct urb *urb)
590{
591 struct hci_dev *hdev = urb->context;
155961e8 592 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 593 int err;
594
89e7533d
MH		 595 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
596 urb->actual_length);
5e23b923
MH		 597
598 if (!test_bit(HCI_RUNNING, &hdev->flags))
599 return;
600
601 if (urb->status == 0) {
9bfa35fe
MH		 602 hdev->stat.byte_rx += urb->actual_length;
603
2cbd3f5c 604 if (data->recv_bulk(data, urb->transfer_buffer,
1ffa4ad0 605 urb->actual_length) < 0) {
5e23b923
MH		 606 BT_ERR("%s corrupted ACL packet", hdev->name);
607 hdev->stat.err_rx++;
608 }
85560c4a
CC		 609 } else if (urb->status == -ENOENT) {
610 /* Avoid suspend failed when usb_kill_urb */
611 return;
5e23b923
MH		 612 }
613
614 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
615 return;
616
617 usb_anchor_urb(urb, &data->bulk_anchor);
652fd781 618 usb_mark_last_busy(data->udev);
5e23b923
MH		 619
620 err = usb_submit_urb(urb, GFP_ATOMIC);
621 if (err < 0) {
4935f1c1
PB		 622 /* -EPERM: urb is being killed;
623 * -ENODEV: device got disconnected */
624 if (err != -EPERM && err != -ENODEV)
61faddf6 625 BT_ERR("%s urb %p failed to resubmit (%d)",
89e7533d 626 hdev->name, urb, -err);
5e23b923
MH		 627 usb_unanchor_urb(urb);
628 }
629}
630
2eda66f4 631static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
5e23b923 632{
155961e8 633 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 634 struct urb *urb;
635 unsigned char *buf;
636 unsigned int pipe;
290ba200 637 int err, size = HCI_MAX_FRAME_SIZE;
5e23b923
MH		 638
639 BT_DBG("%s", hdev->name);
640
9bfa35fe
MH		 641 if (!data->bulk_rx_ep)
642 return -ENODEV;
643
2eda66f4 644 urb = usb_alloc_urb(0, mem_flags);
5e23b923
MH		 645 if (!urb)
646 return -ENOMEM;
647
2eda66f4 648 buf = kmalloc(size, mem_flags);
5e23b923
MH		 649 if (!buf) {
650 usb_free_urb(urb);
651 return -ENOMEM;
652 }
653
654 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
655
89e7533d
MH		 656 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
657 btusb_bulk_complete, hdev);
5e23b923
MH		 658
659 urb->transfer_flags |= URB_FREE_BUFFER;
660
7bee549e 661 usb_mark_last_busy(data->udev);
5e23b923
MH		 662 usb_anchor_urb(urb, &data->bulk_anchor);
663
2eda66f4 664 err = usb_submit_urb(urb, mem_flags);
5e23b923 665 if (err < 0) {
d4b8d1c9
PB		 666 if (err != -EPERM && err != -ENODEV)
667 BT_ERR("%s urb %p submission failed (%d)",
89e7533d 668 hdev->name, urb, -err);
5e23b923 669 usb_unanchor_urb(urb);
5e23b923
MH		 670 }
671
672 usb_free_urb(urb);
673
674 return err;
675}
676
9bfa35fe
MH		 677static void btusb_isoc_complete(struct urb *urb)
678{
679 struct hci_dev *hdev = urb->context;
155961e8 680 struct btusb_data *data = hci_get_drvdata(hdev);
9bfa35fe
MH		 681 int i, err;
682
89e7533d
MH		 683 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
684 urb->actual_length);
9bfa35fe
MH		 685
686 if (!test_bit(HCI_RUNNING, &hdev->flags))
687 return;
688
689 if (urb->status == 0) {
690 for (i = 0; i < urb->number_of_packets; i++) {
691 unsigned int offset = urb->iso_frame_desc[i].offset;
692 unsigned int length = urb->iso_frame_desc[i].actual_length;
693
694 if (urb->iso_frame_desc[i].status)
695 continue;
696
697 hdev->stat.byte_rx += length;
698
1ffa4ad0
MH		 699 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
700 length) < 0) {
9bfa35fe
MH		 701 BT_ERR("%s corrupted SCO packet", hdev->name);
702 hdev->stat.err_rx++;
703 }
704 }
85560c4a
CC		 705 } else if (urb->status == -ENOENT) {
706 /* Avoid suspend failed when usb_kill_urb */
707 return;
9bfa35fe
MH		 708 }
709
710 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
711 return;
712
713 usb_anchor_urb(urb, &data->isoc_anchor);
714
715 err = usb_submit_urb(urb, GFP_ATOMIC);
716 if (err < 0) {
4935f1c1
PB		 717 /* -EPERM: urb is being killed;
718 * -ENODEV: device got disconnected */
719 if (err != -EPERM && err != -ENODEV)
61faddf6 720 BT_ERR("%s urb %p failed to resubmit (%d)",
89e7533d 721 hdev->name, urb, -err);
9bfa35fe
MH		 722 usb_unanchor_urb(urb);
723 }
724}
725
42b16b3f 726static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
9bfa35fe
MH		 727{
728 int i, offset = 0;
729
730 BT_DBG("len %d mtu %d", len, mtu);
731
732 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
733 i++, offset += mtu, len -= mtu) {
734 urb->iso_frame_desc[i].offset = offset;
735 urb->iso_frame_desc[i].length = mtu;
736 }
737
738 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
739 urb->iso_frame_desc[i].offset = offset;
740 urb->iso_frame_desc[i].length = len;
741 i++;
742 }
743
744 urb->number_of_packets = i;
745}
746
2eda66f4 747static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
9bfa35fe 748{
155961e8 749 struct btusb_data *data = hci_get_drvdata(hdev);
9bfa35fe
MH		 750 struct urb *urb;
751 unsigned char *buf;
752 unsigned int pipe;
753 int err, size;
754
755 BT_DBG("%s", hdev->name);
756
757 if (!data->isoc_rx_ep)
758 return -ENODEV;
759
2eda66f4 760 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
9bfa35fe
MH		 761 if (!urb)
762 return -ENOMEM;
763
764 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
765 BTUSB_MAX_ISOC_FRAMES;
766
2eda66f4 767 buf = kmalloc(size, mem_flags);
9bfa35fe
MH		 768 if (!buf) {
769 usb_free_urb(urb);
770 return -ENOMEM;
771 }
772
773 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
774
fa0fb93f 775 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
89e7533d 776 hdev, data->isoc_rx_ep->bInterval);
9bfa35fe 777
89e7533d 778 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
9bfa35fe
MH		 779
780 __fill_isoc_descriptor(urb, size,
89e7533d 781 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
9bfa35fe
MH		 782
783 usb_anchor_urb(urb, &data->isoc_anchor);
784
2eda66f4 785 err = usb_submit_urb(urb, mem_flags);
9bfa35fe 786 if (err < 0) {
d4b8d1c9
PB		 787 if (err != -EPERM && err != -ENODEV)
788 BT_ERR("%s urb %p submission failed (%d)",
89e7533d 789 hdev->name, urb, -err);
9bfa35fe 790 usb_unanchor_urb(urb);
9bfa35fe
MH		 791 }
792
793 usb_free_urb(urb);
794
795 return err;
796}
797
5e23b923 798static void btusb_tx_complete(struct urb *urb)
7bee549e
ON		 799{
800 struct sk_buff *skb = urb->context;
89e7533d 801 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
155961e8 802 struct btusb_data *data = hci_get_drvdata(hdev);
7bee549e 803
89e7533d
MH		 804 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
805 urb->actual_length);
7bee549e
ON		 806
807 if (!test_bit(HCI_RUNNING, &hdev->flags))
808 goto done;
809
810 if (!urb->status)
811 hdev->stat.byte_tx += urb->transfer_buffer_length;
812 else
813 hdev->stat.err_tx++;
814
815done:
816 spin_lock(&data->txlock);
817 data->tx_in_flight--;
818 spin_unlock(&data->txlock);
819
820 kfree(urb->setup_packet);
821
822 kfree_skb(skb);
823}
824
825static void btusb_isoc_tx_complete(struct urb *urb)
5e23b923
MH		 826{
827 struct sk_buff *skb = urb->context;
89e7533d 828 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
5e23b923 829
89e7533d
MH		 830 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
831 urb->actual_length);
5e23b923
MH		 832
833 if (!test_bit(HCI_RUNNING, &hdev->flags))
834 goto done;
835
836 if (!urb->status)
837 hdev->stat.byte_tx += urb->transfer_buffer_length;
838 else
839 hdev->stat.err_tx++;
840
841done:
842 kfree(urb->setup_packet);
843
844 kfree_skb(skb);
845}
846
847static int btusb_open(struct hci_dev *hdev)
848{
155961e8 849 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 850 int err;
851
852 BT_DBG("%s", hdev->name);
853
7bee549e
ON		 854 err = usb_autopm_get_interface(data->intf);
855 if (err < 0)
856 return err;
857
858 data->intf->needs_remote_wakeup = 1;
859
5e23b923 860 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
7bee549e 861 goto done;
5e23b923
MH		 862
863 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
7bee549e 864 goto done;
5e23b923 865
2eda66f4 866 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
43c2e57f
MH		 867 if (err < 0)
868 goto failed;
869
870 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
5e23b923 871 if (err < 0) {
43c2e57f
MH		 872 usb_kill_anchored_urbs(&data->intr_anchor);
873 goto failed;
5e23b923
MH		 874 }
875
43c2e57f
MH		 876 set_bit(BTUSB_BULK_RUNNING, &data->flags);
877 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
878
7bee549e
ON		 879done:
880 usb_autopm_put_interface(data->intf);
43c2e57f
MH		 881 return 0;
882
883failed:
884 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
885 clear_bit(HCI_RUNNING, &hdev->flags);
7bee549e 886 usb_autopm_put_interface(data->intf);
5e23b923
MH		 887 return err;
888}
889
7bee549e
ON		 890static void btusb_stop_traffic(struct btusb_data *data)
891{
892 usb_kill_anchored_urbs(&data->intr_anchor);
893 usb_kill_anchored_urbs(&data->bulk_anchor);
894 usb_kill_anchored_urbs(&data->isoc_anchor);
895}
896
5e23b923
MH		 897static int btusb_close(struct hci_dev *hdev)
898{
155961e8 899 struct btusb_data *data = hci_get_drvdata(hdev);
7bee549e 900 int err;
5e23b923
MH		 901
902 BT_DBG("%s", hdev->name);
903
904 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
905 return 0;
906
e8c3c3d2 907 cancel_work_sync(&data->work);
404291ac 908 cancel_work_sync(&data->waker);
e8c3c3d2 909
9bfa35fe 910 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
5e23b923 911 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
5e23b923 912 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
7bee549e
ON		 913
914 btusb_stop_traffic(data);
803b5836
MH		 915 btusb_free_frags(data);
916
7bee549e
ON		 917 err = usb_autopm_get_interface(data->intf);
918 if (err < 0)
7b8e2c1d 919 goto failed;
7bee549e
ON		 920
921 data->intf->needs_remote_wakeup = 0;
922 usb_autopm_put_interface(data->intf);
5e23b923 923
7b8e2c1d
ON		 924failed:
925 usb_scuttle_anchored_urbs(&data->deferred);
5e23b923
MH		 926 return 0;
927}
928
929static int btusb_flush(struct hci_dev *hdev)
930{
155961e8 931 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 932
933 BT_DBG("%s", hdev->name);
934
935 usb_kill_anchored_urbs(&data->tx_anchor);
803b5836 936 btusb_free_frags(data);
5e23b923
MH		 937
938 return 0;
939}
940
047b2ec8 941static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
5e23b923 942{
155961e8 943 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 944 struct usb_ctrlrequest *dr;
945 struct urb *urb;
946 unsigned int pipe;
5e23b923 947
047b2ec8
MH		 948 urb = usb_alloc_urb(0, GFP_KERNEL);
949 if (!urb)
950 return ERR_PTR(-ENOMEM);
5e23b923 951
047b2ec8
MH		 952 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
953 if (!dr) {
954 usb_free_urb(urb);
955 return ERR_PTR(-ENOMEM);
956 }
5e23b923 957
047b2ec8
MH		 958 dr->bRequestType = data->cmdreq_type;
959 dr->bRequest = 0;
960 dr->wIndex = 0;
961 dr->wValue = 0;
962 dr->wLength = __cpu_to_le16(skb->len);
7bd8f09f 963
047b2ec8 964 pipe = usb_sndctrlpipe(data->udev, 0x00);
5e23b923 965
89e7533d 966 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
047b2ec8 967 skb->data, skb->len, btusb_tx_complete, skb);
5e23b923 968
89e7533d 969 skb->dev = (void *)hdev;
5e23b923 970
047b2ec8
MH		 971 return urb;
972}
5e23b923 973
047b2ec8
MH		 974static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
975{
976 struct btusb_data *data = hci_get_drvdata(hdev);
977 struct urb *urb;
978 unsigned int pipe;
5e23b923 979
047b2ec8
MH		 980 if (!data->bulk_tx_ep)
981 return ERR_PTR(-ENODEV);
9bfa35fe 982
047b2ec8
MH		 983 urb = usb_alloc_urb(0, GFP_KERNEL);
984 if (!urb)
985 return ERR_PTR(-ENOMEM);
5e23b923 986
047b2ec8 987 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
5e23b923 988
047b2ec8
MH		 989 usb_fill_bulk_urb(urb, data->udev, pipe,
990 skb->data, skb->len, btusb_tx_complete, skb);
5e23b923 991
89e7533d 992 skb->dev = (void *)hdev;
5e23b923 993
047b2ec8
MH		 994 return urb;
995}
9bfa35fe 996
047b2ec8
MH		 997static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
998{
999 struct btusb_data *data = hci_get_drvdata(hdev);
1000 struct urb *urb;
1001 unsigned int pipe;
9bfa35fe 1002
047b2ec8
MH		 1003 if (!data->isoc_tx_ep)
1004 return ERR_PTR(-ENODEV);
9bfa35fe 1005
047b2ec8
MH		 1006 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
1007 if (!urb)
1008 return ERR_PTR(-ENOMEM);
9bfa35fe 1009
047b2ec8 1010 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
9bfa35fe 1011
047b2ec8
MH		 1012 usb_fill_int_urb(urb, data->udev, pipe,
1013 skb->data, skb->len, btusb_isoc_tx_complete,
1014 skb, data->isoc_tx_ep->bInterval);
9bfa35fe 1015
047b2ec8 1016 urb->transfer_flags = URB_ISO_ASAP;
5e23b923 1017
047b2ec8
MH		 1018 __fill_isoc_descriptor(urb, skb->len,
1019 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
5e23b923 1020
89e7533d 1021 skb->dev = (void *)hdev;
047b2ec8
MH		 1022
1023 return urb;
1024}
1025
1026static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
1027{
1028 struct btusb_data *data = hci_get_drvdata(hdev);
1029 int err;
7bee549e 1030
5e23b923
MH		 1031 usb_anchor_urb(urb, &data->tx_anchor);
1032
e9753eff 1033 err = usb_submit_urb(urb, GFP_KERNEL);
5e23b923 1034 if (err < 0) {
5a9b80e2
PB		 1035 if (err != -EPERM && err != -ENODEV)
1036 BT_ERR("%s urb %p submission failed (%d)",
89e7533d 1037 hdev->name, urb, -err);
5e23b923
MH		 1038 kfree(urb->setup_packet);
1039 usb_unanchor_urb(urb);
7bee549e
ON		 1040 } else {
1041 usb_mark_last_busy(data->udev);
5e23b923
MH		 1042 }
1043
54a8a79c 1044 usb_free_urb(urb);
5e23b923
MH		 1045 return err;
1046}
1047
047b2ec8
MH		 1048static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
1049{
1050 struct btusb_data *data = hci_get_drvdata(hdev);
1051 unsigned long flags;
1052 bool suspending;
1053
1054 spin_lock_irqsave(&data->txlock, flags);
1055 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
1056 if (!suspending)
1057 data->tx_in_flight++;
1058 spin_unlock_irqrestore(&data->txlock, flags);
1059
1060 if (!suspending)
1061 return submit_tx_urb(hdev, urb);
1062
1063 usb_anchor_urb(urb, &data->deferred);
1064 schedule_work(&data->waker);
1065
1066 usb_free_urb(urb);
1067 return 0;
1068}
1069
1070static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
1071{
1072 struct urb *urb;
1073
1074 BT_DBG("%s", hdev->name);
1075
1076 if (!test_bit(HCI_RUNNING, &hdev->flags))
1077 return -EBUSY;
1078
1079 switch (bt_cb(skb)->pkt_type) {
1080 case HCI_COMMAND_PKT:
1081 urb = alloc_ctrl_urb(hdev, skb);
1082 if (IS_ERR(urb))
1083 return PTR_ERR(urb);
1084
1085 hdev->stat.cmd_tx++;
1086 return submit_or_queue_tx_urb(hdev, urb);
1087
1088 case HCI_ACLDATA_PKT:
1089 urb = alloc_bulk_urb(hdev, skb);
1090 if (IS_ERR(urb))
1091 return PTR_ERR(urb);
1092
1093 hdev->stat.acl_tx++;
1094 return submit_or_queue_tx_urb(hdev, urb);
1095
1096 case HCI_SCODATA_PKT:
1097 if (hci_conn_num(hdev, SCO_LINK) < 1)
1098 return -ENODEV;
1099
1100 urb = alloc_isoc_urb(hdev, skb);
1101 if (IS_ERR(urb))
1102 return PTR_ERR(urb);
1103
1104 hdev->stat.sco_tx++;
1105 return submit_tx_urb(hdev, urb);
1106 }
1107
1108 return -EILSEQ;
1109}
1110
5e23b923
MH		 1111static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
1112{
155961e8 1113 struct btusb_data *data = hci_get_drvdata(hdev);
5e23b923
MH		 1114
1115 BT_DBG("%s evt %d", hdev->name, evt);
1116
014f7bc7
MH		 1117 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
1118 data->sco_num = hci_conn_num(hdev, SCO_LINK);
43c2e57f 1119 schedule_work(&data->work);
a780efa8 1120 }
5e23b923
MH		 1121}
1122
42b16b3f 1123static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
9bfa35fe 1124{
155961e8 1125 struct btusb_data *data = hci_get_drvdata(hdev);
9bfa35fe
MH		 1126 struct usb_interface *intf = data->isoc;
1127 struct usb_endpoint_descriptor *ep_desc;
1128 int i, err;
1129
1130 if (!data->isoc)
1131 return -ENODEV;
1132
1133 err = usb_set_interface(data->udev, 1, altsetting);
1134 if (err < 0) {
1135 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
1136 return err;
1137 }
1138
1139 data->isoc_altsetting = altsetting;
1140
1141 data->isoc_tx_ep = NULL;
1142 data->isoc_rx_ep = NULL;
1143
1144 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1145 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1146
1147 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
1148 data->isoc_tx_ep = ep_desc;
1149 continue;
1150 }
1151
1152 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
1153 data->isoc_rx_ep = ep_desc;
1154 continue;
1155 }
1156 }
1157
1158 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
1159 BT_ERR("%s invalid SCO descriptors", hdev->name);
1160 return -ENODEV;
1161 }
1162
1163 return 0;
1164}
1165
5e23b923
MH		 1166static void btusb_work(struct work_struct *work)
1167{
1168 struct btusb_data *data = container_of(work, struct btusb_data, work);
1169 struct hci_dev *hdev = data->hdev;
f4001d28 1170 int new_alts;
7bee549e 1171 int err;
5e23b923 1172
014f7bc7 1173 if (data->sco_num > 0) {
08b8b6c4 1174 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
8efdd0cd 1175 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
7bee549e
ON		 1176 if (err < 0) {
1177 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1178 usb_kill_anchored_urbs(&data->isoc_anchor);
1179 return;
1180 }
1181
08b8b6c4 1182 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
7bee549e 1183 }
f4001d28
MA		 1184
1185 if (hdev->voice_setting & 0x0020) {
1186 static const int alts[3] = { 2, 4, 5 };
89e7533d 1187
014f7bc7 1188 new_alts = alts[data->sco_num - 1];
f4001d28 1189 } else {
014f7bc7 1190 new_alts = data->sco_num;
f4001d28
MA		 1191 }
1192
1193 if (data->isoc_altsetting != new_alts) {
9bfa35fe
MH		 1194 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1195 usb_kill_anchored_urbs(&data->isoc_anchor);
1196
f4001d28 1197 if (__set_isoc_interface(hdev, new_alts) < 0)
9bfa35fe
MH		 1198 return;
1199 }
1200
1201 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2eda66f4 1202 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
9bfa35fe
MH		 1203 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1204 else
2eda66f4 1205 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
9bfa35fe
MH		 1206 }
1207 } else {
1208 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1209 usb_kill_anchored_urbs(&data->isoc_anchor);
1210
1211 __set_isoc_interface(hdev, 0);
08b8b6c4 1212 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
8efdd0cd 1213 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
5e23b923
MH		 1214 }
1215}
1216
7bee549e
ON		 1217static void btusb_waker(struct work_struct *work)
1218{
1219 struct btusb_data *data = container_of(work, struct btusb_data, waker);
1220 int err;
1221
1222 err = usb_autopm_get_interface(data->intf);
1223 if (err < 0)
1224 return;
1225
1226 usb_autopm_put_interface(data->intf);
1227}
1228
9f8f962c
MH		 1229static int btusb_setup_bcm92035(struct hci_dev *hdev)
1230{
1231 struct sk_buff *skb;
1232 u8 val = 0x00;
1233
1234 BT_DBG("%s", hdev->name);
1235
1236 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
1237 if (IS_ERR(skb))
1238 BT_ERR("BCM92035 command failed (%ld)", -PTR_ERR(skb));
1239 else
1240 kfree_skb(skb);
1241
1242 return 0;
1243}
1244
81cac64b
MH		 1245static int btusb_setup_csr(struct hci_dev *hdev)
1246{
1247 struct hci_rp_read_local_version *rp;
1248 struct sk_buff *skb;
1249 int ret;
1250
1251 BT_DBG("%s", hdev->name);
1252
1253 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1254 HCI_INIT_TIMEOUT);
1255 if (IS_ERR(skb)) {
1256 BT_ERR("Reading local version failed (%ld)", -PTR_ERR(skb));
1257 return -PTR_ERR(skb);
1258 }
1259
89e7533d 1260 rp = (struct hci_rp_read_local_version *)skb->data;
81cac64b
MH		 1261
1262 if (!rp->status) {
1263 if (le16_to_cpu(rp->manufacturer) != 10) {
1264 /* Clear the reset quirk since this is not an actual
1265 * early Bluetooth 1.1 device from CSR.
1266 */
1267 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1268
1269 /* These fake CSR controllers have all a broken
1270 * stored link key handling and so just disable it.
1271 */
1272 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY,
1273 &hdev->quirks);
1274 }
1275 }
1276
1277 ret = -bt_to_errno(rp->status);
1278
1279 kfree_skb(skb);
1280
1281 return ret;
1282}
1283
dffd30ee
THJA		 1284struct intel_version {
1285 u8 status;
1286 u8 hw_platform;
1287 u8 hw_variant;
1288 u8 hw_revision;
1289 u8 fw_variant;
1290 u8 fw_revision;
1291 u8 fw_build_num;
1292 u8 fw_build_ww;
1293 u8 fw_build_yy;
1294 u8 fw_patch_num;
1295} __packed;
1296
1297static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev,
89e7533d 1298 struct intel_version *ver)
dffd30ee
THJA		 1299{
1300 const struct firmware *fw;
1301 char fwname[64];
1302 int ret;
1303
1304 snprintf(fwname, sizeof(fwname),
1305 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq",
1306 ver->hw_platform, ver->hw_variant, ver->hw_revision,
1307 ver->fw_variant, ver->fw_revision, ver->fw_build_num,
1308 ver->fw_build_ww, ver->fw_build_yy);
1309
1310 ret = request_firmware(&fw, fwname, &hdev->dev);
1311 if (ret < 0) {
1312 if (ret == -EINVAL) {
1313 BT_ERR("%s Intel firmware file request failed (%d)",
1314 hdev->name, ret);
1315 return NULL;
1316 }
1317
1318 BT_ERR("%s failed to open Intel firmware file: %s(%d)",
1319 hdev->name, fwname, ret);
1320
1321 /* If the correct firmware patch file is not found, use the
1322 * default firmware patch file instead
1323 */
1324 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq",
1325 ver->hw_platform, ver->hw_variant);
1326 if (request_firmware(&fw, fwname, &hdev->dev) < 0) {
1327 BT_ERR("%s failed to open default Intel fw file: %s",
1328 hdev->name, fwname);
1329 return NULL;
1330 }
1331 }
1332
1333 BT_INFO("%s: Intel Bluetooth firmware file: %s", hdev->name, fwname);
1334
1335 return fw;
1336}
1337
1338static int btusb_setup_intel_patching(struct hci_dev *hdev,
1339 const struct firmware *fw,
1340 const u8 **fw_ptr, int *disable_patch)
1341{
1342 struct sk_buff *skb;
1343 struct hci_command_hdr *cmd;
1344 const u8 *cmd_param;
1345 struct hci_event_hdr *evt = NULL;
1346 const u8 *evt_param = NULL;
1347 int remain = fw->size - (*fw_ptr - fw->data);
1348
1349 /* The first byte indicates the types of the patch command or event.
1350 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes
1351 * in the current firmware buffer doesn't start with 0x01 or
1352 * the size of remain buffer is smaller than HCI command header,
1353 * the firmware file is corrupted and it should stop the patching
1354 * process.
1355 */
1356 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) {
1357 BT_ERR("%s Intel fw corrupted: invalid cmd read", hdev->name);
1358 return -EINVAL;
1359 }
1360 (*fw_ptr)++;
1361 remain--;
1362
1363 cmd = (struct hci_command_hdr *)(*fw_ptr);
1364 *fw_ptr += sizeof(*cmd);
1365 remain -= sizeof(*cmd);
1366
1367 /* Ensure that the remain firmware data is long enough than the length
1368 * of command parameter. If not, the firmware file is corrupted.
1369 */
1370 if (remain < cmd->plen) {
1371 BT_ERR("%s Intel fw corrupted: invalid cmd len", hdev->name);
1372 return -EFAULT;
1373 }
1374
1375 /* If there is a command that loads a patch in the firmware
1376 * file, then enable the patch upon success, otherwise just
1377 * disable the manufacturer mode, for example patch activation
1378 * is not required when the default firmware patch file is used
1379 * because there are no patch data to load.
1380 */
1381 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e)
1382 *disable_patch = 0;
1383
1384 cmd_param = *fw_ptr;
1385 *fw_ptr += cmd->plen;
1386 remain -= cmd->plen;
1387
1388 /* This reads the expected events when the above command is sent to the
1389 * device. Some vendor commands expects more than one events, for
1390 * example command status event followed by vendor specific event.
1391 * For this case, it only keeps the last expected event. so the command
1392 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of
1393 * last expected event.
1394 */
1395 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) {
1396 (*fw_ptr)++;
1397 remain--;
1398
1399 evt = (struct hci_event_hdr *)(*fw_ptr);
1400 *fw_ptr += sizeof(*evt);
1401 remain -= sizeof(*evt);
1402
1403 if (remain < evt->plen) {
1404 BT_ERR("%s Intel fw corrupted: invalid evt len",
1405 hdev->name);
1406 return -EFAULT;
1407 }
1408
1409 evt_param = *fw_ptr;
1410 *fw_ptr += evt->plen;
1411 remain -= evt->plen;
1412 }
1413
1414 /* Every HCI commands in the firmware file has its correspond event.
1415 * If event is not found or remain is smaller than zero, the firmware
1416 * file is corrupted.
1417 */
1418 if (!evt || !evt_param || remain < 0) {
1419 BT_ERR("%s Intel fw corrupted: invalid evt read", hdev->name);
1420 return -EFAULT;
1421 }
1422
1423 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen,
1424 cmd_param, evt->evt, HCI_INIT_TIMEOUT);
1425 if (IS_ERR(skb)) {
1426 BT_ERR("%s sending Intel patch command (0x%4.4x) failed (%ld)",
1427 hdev->name, cmd->opcode, PTR_ERR(skb));
d9c78e97 1428 return PTR_ERR(skb);
dffd30ee
THJA		 1429 }
1430
1431 /* It ensures that the returned event matches the event data read from
1432 * the firmware file. At fist, it checks the length and then
1433 * the contents of the event.
1434 */
1435 if (skb->len != evt->plen) {
1436 BT_ERR("%s mismatch event length (opcode 0x%4.4x)", hdev->name,
1437 le16_to_cpu(cmd->opcode));
1438 kfree_skb(skb);
1439 return -EFAULT;
1440 }
1441
1442 if (memcmp(skb->data, evt_param, evt->plen)) {
1443 BT_ERR("%s mismatch event parameter (opcode 0x%4.4x)",
1444 hdev->name, le16_to_cpu(cmd->opcode));
1445 kfree_skb(skb);
1446 return -EFAULT;
1447 }
1448 kfree_skb(skb);
1449
1450 return 0;
1451}
1452
40cb0984
MH		 1453#define BDADDR_INTEL (&(bdaddr_t) {{0x00, 0x8b, 0x9e, 0x19, 0x03, 0x00}})
1454
1455static int btusb_check_bdaddr_intel(struct hci_dev *hdev)
1456{
1457 struct sk_buff *skb;
1458 struct hci_rp_read_bd_addr *rp;
1459
1460 skb = __hci_cmd_sync(hdev, HCI_OP_READ_BD_ADDR, 0, NULL,
1461 HCI_INIT_TIMEOUT);
1462 if (IS_ERR(skb)) {
1463 BT_ERR("%s reading Intel device address failed (%ld)",
1464 hdev->name, PTR_ERR(skb));
1465 return PTR_ERR(skb);
1466 }
1467
1468 if (skb->len != sizeof(*rp)) {
1469 BT_ERR("%s Intel device address length mismatch", hdev->name);
1470 kfree_skb(skb);
1471 return -EIO;
1472 }
1473
89e7533d 1474 rp = (struct hci_rp_read_bd_addr *)skb->data;
40cb0984
MH		 1475 if (rp->status) {
1476 BT_ERR("%s Intel device address result failed (%02x)",
1477 hdev->name, rp->status);
1478 kfree_skb(skb);
1479 return -bt_to_errno(rp->status);
1480 }
1481
1482 /* For some Intel based controllers, the default Bluetooth device
1483 * address 00:03:19:9E:8B:00 can be found. These controllers are
1484 * fully operational, but have the danger of duplicate addresses
1485 * and that in turn can cause problems with Bluetooth operation.
1486 */
4739b5b1 1487 if (!bacmp(&rp->bdaddr, BDADDR_INTEL)) {
40cb0984
MH		 1488 BT_ERR("%s found Intel default device address (%pMR)",
1489 hdev->name, &rp->bdaddr);
4739b5b1
MH		 1490 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
1491 }
40cb0984
MH		 1492
1493 kfree_skb(skb);
1494
1495 return 0;
1496}
1497
dffd30ee
THJA		 1498static int btusb_setup_intel(struct hci_dev *hdev)
1499{
1500 struct sk_buff *skb;
1501 const struct firmware *fw;
1502 const u8 *fw_ptr;
1503 int disable_patch;
1504 struct intel_version *ver;
1505
1506 const u8 mfg_enable[] = { 0x01, 0x00 };
1507 const u8 mfg_disable[] = { 0x00, 0x00 };
1508 const u8 mfg_reset_deactivate[] = { 0x00, 0x01 };
1509 const u8 mfg_reset_activate[] = { 0x00, 0x02 };
1510
1511 BT_DBG("%s", hdev->name);
1512
1513 /* The controller has a bug with the first HCI command sent to it
1514 * returning number of completed commands as zero. This would stall the
1515 * command processing in the Bluetooth core.
1516 *
1517 * As a workaround, send HCI Reset command first which will reset the
1518 * number of completed commands and allow normal command processing
1519 * from now on.
1520 */
1521 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1522 if (IS_ERR(skb)) {
1523 BT_ERR("%s sending initial HCI reset command failed (%ld)",
1524 hdev->name, PTR_ERR(skb));
d9c78e97 1525 return PTR_ERR(skb);
dffd30ee
THJA		 1526 }
1527 kfree_skb(skb);
1528
1529 /* Read Intel specific controller version first to allow selection of
1530 * which firmware file to load.
1531 *
1532 * The returned information are hardware variant and revision plus
1533 * firmware variant, revision and build number.
1534 */
1535 skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT);
1536 if (IS_ERR(skb)) {
1537 BT_ERR("%s reading Intel fw version command failed (%ld)",
1538 hdev->name, PTR_ERR(skb));
d9c78e97 1539 return PTR_ERR(skb);
dffd30ee
THJA		 1540 }
1541
1542 if (skb->len != sizeof(*ver)) {
1543 BT_ERR("%s Intel version event length mismatch", hdev->name);
1544 kfree_skb(skb);
1545 return -EIO;
1546 }
1547
1548 ver = (struct intel_version *)skb->data;
1549 if (ver->status) {
1550 BT_ERR("%s Intel fw version event failed (%02x)", hdev->name,
1551 ver->status);
1552 kfree_skb(skb);
1553 return -bt_to_errno(ver->status);
1554 }
1555
1556 BT_INFO("%s: read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
1557 hdev->name, ver->hw_platform, ver->hw_variant,
1558 ver->hw_revision, ver->fw_variant, ver->fw_revision,
1559 ver->fw_build_num, ver->fw_build_ww, ver->fw_build_yy,
1560 ver->fw_patch_num);
1561
1562 /* fw_patch_num indicates the version of patch the device currently
1563 * have. If there is no patch data in the device, it is always 0x00.
1564 * So, if it is other than 0x00, no need to patch the deivce again.
1565 */
1566 if (ver->fw_patch_num) {
1567 BT_INFO("%s: Intel device is already patched. patch num: %02x",
1568 hdev->name, ver->fw_patch_num);
1569 kfree_skb(skb);
40cb0984 1570 btusb_check_bdaddr_intel(hdev);
dffd30ee
THJA		 1571 return 0;
1572 }
1573
1574 /* Opens the firmware patch file based on the firmware version read
1575 * from the controller. If it fails to open the matching firmware
1576 * patch file, it tries to open the default firmware patch file.
1577 * If no patch file is found, allow the device to operate without
1578 * a patch.
1579 */
1580 fw = btusb_setup_intel_get_fw(hdev, ver);
1581 if (!fw) {
1582 kfree_skb(skb);
40cb0984 1583 btusb_check_bdaddr_intel(hdev);
dffd30ee
THJA		 1584 return 0;
1585 }
1586 fw_ptr = fw->data;
1587
1588 /* This Intel specific command enables the manufacturer mode of the
1589 * controller.
1590 *
1591 * Only while this mode is enabled, the driver can download the
1592 * firmware patch data and configuration parameters.
1593 */
1594 skb = __hci_cmd_sync(hdev, 0xfc11, 2, mfg_enable, HCI_INIT_TIMEOUT);
1595 if (IS_ERR(skb)) {
1596 BT_ERR("%s entering Intel manufacturer mode failed (%ld)",
1597 hdev->name, PTR_ERR(skb));
1598 release_firmware(fw);
d9c78e97 1599 return PTR_ERR(skb);
dffd30ee
THJA		 1600 }
1601
1602 if (skb->data[0]) {
1603 u8 evt_status = skb->data[0];
89e7533d 1604
dffd30ee
THJA		 1605 BT_ERR("%s enable Intel manufacturer mode event failed (%02x)",
1606 hdev->name, evt_status);
1607 kfree_skb(skb);
1608 release_firmware(fw);
1609 return -bt_to_errno(evt_status);
1610 }
1611 kfree_skb(skb);
1612
1613 disable_patch = 1;
1614
1615 /* The firmware data file consists of list of Intel specific HCI
1616 * commands and its expected events. The first byte indicates the
1617 * type of the message, either HCI command or HCI event.
1618 *
1619 * It reads the command and its expected event from the firmware file,
1620 * and send to the controller. Once __hci_cmd_sync_ev() returns,
1621 * the returned event is compared with the event read from the firmware
1622 * file and it will continue until all the messages are downloaded to
1623 * the controller.
1624 *
1625 * Once the firmware patching is completed successfully,
1626 * the manufacturer mode is disabled with reset and activating the
1627 * downloaded patch.
1628 *
1629 * If the firmware patching fails, the manufacturer mode is
1630 * disabled with reset and deactivating the patch.
1631 *
1632 * If the default patch file is used, no reset is done when disabling
1633 * the manufacturer.
1634 */
1635 while (fw->size > fw_ptr - fw->data) {
1636 int ret;
1637
1638 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr,
1639 &disable_patch);
1640 if (ret < 0)
1641 goto exit_mfg_deactivate;
1642 }
1643
1644 release_firmware(fw);
1645
1646 if (disable_patch)
1647 goto exit_mfg_disable;
1648
1649 /* Patching completed successfully and disable the manufacturer mode
1650 * with reset and activate the downloaded firmware patches.
1651 */
1652 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_activate),
1653 mfg_reset_activate, HCI_INIT_TIMEOUT);
1654 if (IS_ERR(skb)) {
1655 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1656 hdev->name, PTR_ERR(skb));
d9c78e97 1657 return PTR_ERR(skb);
dffd30ee
THJA		 1658 }
1659 kfree_skb(skb);
1660
1661 BT_INFO("%s: Intel Bluetooth firmware patch completed and activated",
1662 hdev->name);
1663
40cb0984 1664 btusb_check_bdaddr_intel(hdev);
dffd30ee
THJA		 1665 return 0;
1666
1667exit_mfg_disable:
1668 /* Disable the manufacturer mode without reset */
1669 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_disable), mfg_disable,
1670 HCI_INIT_TIMEOUT);
1671 if (IS_ERR(skb)) {
1672 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1673 hdev->name, PTR_ERR(skb));
d9c78e97 1674 return PTR_ERR(skb);
dffd30ee
THJA		 1675 }
1676 kfree_skb(skb);
1677
1678 BT_INFO("%s: Intel Bluetooth firmware patch completed", hdev->name);
40cb0984
MH		 1679
1680 btusb_check_bdaddr_intel(hdev);
dffd30ee
THJA		 1681 return 0;
1682
1683exit_mfg_deactivate:
1684 release_firmware(fw);
1685
1686 /* Patching failed. Disable the manufacturer mode with reset and
1687 * deactivate the downloaded firmware patches.
1688 */
1689 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_deactivate),
1690 mfg_reset_deactivate, HCI_INIT_TIMEOUT);
1691 if (IS_ERR(skb)) {
1692 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1693 hdev->name, PTR_ERR(skb));
d9c78e97 1694 return PTR_ERR(skb);
dffd30ee
THJA		 1695 }
1696 kfree_skb(skb);
1697
1698 BT_INFO("%s: Intel Bluetooth firmware patch completed and deactivated",
1699 hdev->name);
1700
40cb0984 1701 btusb_check_bdaddr_intel(hdev);
dffd30ee
THJA		 1702 return 0;
1703}
1704
cb8d6597
MH		 1705static int btusb_set_bdaddr_intel(struct hci_dev *hdev, const bdaddr_t *bdaddr)
1706{
1707 struct sk_buff *skb;
1708 long ret;
1709
1710 skb = __hci_cmd_sync(hdev, 0xfc31, 6, bdaddr, HCI_INIT_TIMEOUT);
1711 if (IS_ERR(skb)) {
1712 ret = PTR_ERR(skb);
1713 BT_ERR("%s: changing Intel device address failed (%ld)",
89e7533d 1714 hdev->name, ret);
cb8d6597
MH		 1715 return ret;
1716 }
1717 kfree_skb(skb);
1718
1719 return 0;
1720}
1721
ae8df494
AK		 1722static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
1723 const bdaddr_t *bdaddr)
1724{
1725 struct sk_buff *skb;
1726 u8 buf[8];
1727 long ret;
1728
1729 buf[0] = 0xfe;
1730 buf[1] = sizeof(bdaddr_t);
1731 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
1732
1733 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
1734 if (IS_ERR(skb)) {
1735 ret = PTR_ERR(skb);
1736 BT_ERR("%s: changing Marvell device address failed (%ld)",
1737 hdev->name, ret);
1738 return ret;
1739 }
1740 kfree_skb(skb);
1741
1742 return 0;
1743}
1744
c8abb73f
MH		 1745#define BDADDR_BCM20702A0 (&(bdaddr_t) {{0x00, 0xa0, 0x02, 0x70, 0x20, 0x00}})
1746
10d4c673
PG		 1747static int btusb_setup_bcm_patchram(struct hci_dev *hdev)
1748{
1749 struct btusb_data *data = hci_get_drvdata(hdev);
1750 struct usb_device *udev = data->udev;
1751 char fw_name[64];
1752 const struct firmware *fw;
1753 const u8 *fw_ptr;
1754 size_t fw_size;
1755 const struct hci_command_hdr *cmd;
1756 const u8 *cmd_param;
1757 u16 opcode;
1758 struct sk_buff *skb;
1759 struct hci_rp_read_local_version *ver;
c8abb73f 1760 struct hci_rp_read_bd_addr *bda;
10d4c673
PG		 1761 long ret;
1762
1763 snprintf(fw_name, sizeof(fw_name), "brcm/%s-%04x-%04x.hcd",
1764 udev->product ? udev->product : "BCM",
1765 le16_to_cpu(udev->descriptor.idVendor),
1766 le16_to_cpu(udev->descriptor.idProduct));
1767
1768 ret = request_firmware(&fw, fw_name, &hdev->dev);
1769 if (ret < 0) {
c8abb73f 1770 BT_INFO("%s: BCM: patch %s not found", hdev->name, fw_name);
10d4c673
PG		 1771 return 0;
1772 }
1773
1774 /* Reset */
1775 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1776 if (IS_ERR(skb)) {
1777 ret = PTR_ERR(skb);
1778 BT_ERR("%s: HCI_OP_RESET failed (%ld)", hdev->name, ret);
1779 goto done;
1780 }
1781 kfree_skb(skb);
1782
1783 /* Read Local Version Info */
1784 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1785 HCI_INIT_TIMEOUT);
1786 if (IS_ERR(skb)) {
1787 ret = PTR_ERR(skb);
1788 BT_ERR("%s: HCI_OP_READ_LOCAL_VERSION failed (%ld)",
89e7533d 1789 hdev->name, ret);
10d4c673
PG		 1790 goto done;
1791 }
1792
1793 if (skb->len != sizeof(*ver)) {
1794 BT_ERR("%s: HCI_OP_READ_LOCAL_VERSION event length mismatch",
89e7533d 1795 hdev->name);
10d4c673
PG		 1796 kfree_skb(skb);
1797 ret = -EIO;
1798 goto done;
1799 }
1800
89e7533d 1801 ver = (struct hci_rp_read_local_version *)skb->data;
10d4c673
PG		 1802 BT_INFO("%s: BCM: patching hci_ver=%02x hci_rev=%04x lmp_ver=%02x "
1803 "lmp_subver=%04x", hdev->name, ver->hci_ver, ver->hci_rev,
1804 ver->lmp_ver, ver->lmp_subver);
1805 kfree_skb(skb);
1806
1807 /* Start Download */
1808 skb = __hci_cmd_sync(hdev, 0xfc2e, 0, NULL, HCI_INIT_TIMEOUT);
1809 if (IS_ERR(skb)) {
1810 ret = PTR_ERR(skb);
1811 BT_ERR("%s: BCM: Download Minidrv command failed (%ld)",
89e7533d 1812 hdev->name, ret);
10d4c673
PG		 1813 goto reset_fw;
1814 }
1815 kfree_skb(skb);
1816
1817 /* 50 msec delay after Download Minidrv completes */
1818 msleep(50);
1819
1820 fw_ptr = fw->data;
1821 fw_size = fw->size;
1822
1823 while (fw_size >= sizeof(*cmd)) {
89e7533d 1824 cmd = (struct hci_command_hdr *)fw_ptr;
10d4c673
PG		 1825 fw_ptr += sizeof(*cmd);
1826 fw_size -= sizeof(*cmd);
1827
1828 if (fw_size < cmd->plen) {
1829 BT_ERR("%s: BCM: patch %s is corrupted",
89e7533d 1830 hdev->name, fw_name);
10d4c673
PG		 1831 ret = -EINVAL;
1832 goto reset_fw;
1833 }
1834
1835 cmd_param = fw_ptr;
1836 fw_ptr += cmd->plen;
1837 fw_size -= cmd->plen;
1838
1839 opcode = le16_to_cpu(cmd->opcode);
1840
1841 skb = __hci_cmd_sync(hdev, opcode, cmd->plen, cmd_param,
1842 HCI_INIT_TIMEOUT);
1843 if (IS_ERR(skb)) {
1844 ret = PTR_ERR(skb);
1845 BT_ERR("%s: BCM: patch command %04x failed (%ld)",
89e7533d 1846 hdev->name, opcode, ret);
10d4c673
PG		 1847 goto reset_fw;
1848 }
1849 kfree_skb(skb);
1850 }
1851
1852 /* 250 msec delay after Launch Ram completes */
1853 msleep(250);
1854
1855reset_fw:
1856 /* Reset */
1857 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1858 if (IS_ERR(skb)) {
1859 ret = PTR_ERR(skb);
1860 BT_ERR("%s: HCI_OP_RESET failed (%ld)", hdev->name, ret);
1861 goto done;
1862 }
1863 kfree_skb(skb);
1864
1865 /* Read Local Version Info */
1866 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1867 HCI_INIT_TIMEOUT);
1868 if (IS_ERR(skb)) {
1869 ret = PTR_ERR(skb);
1870 BT_ERR("%s: HCI_OP_READ_LOCAL_VERSION failed (%ld)",
89e7533d 1871 hdev->name, ret);
10d4c673
PG		 1872 goto done;
1873 }
1874
1875 if (skb->len != sizeof(*ver)) {
1876 BT_ERR("%s: HCI_OP_READ_LOCAL_VERSION event length mismatch",
89e7533d 1877 hdev->name);
10d4c673
PG		 1878 kfree_skb(skb);
1879 ret = -EIO;
1880 goto done;
1881 }
1882
89e7533d 1883 ver = (struct hci_rp_read_local_version *)skb->data;
10d4c673
PG		 1884 BT_INFO("%s: BCM: firmware hci_ver=%02x hci_rev=%04x lmp_ver=%02x "
1885 "lmp_subver=%04x", hdev->name, ver->hci_ver, ver->hci_rev,
1886 ver->lmp_ver, ver->lmp_subver);
1887 kfree_skb(skb);
1888
c8abb73f
MH		 1889 /* Read BD Address */
1890 skb = __hci_cmd_sync(hdev, HCI_OP_READ_BD_ADDR, 0, NULL,
1891 HCI_INIT_TIMEOUT);
1892 if (IS_ERR(skb)) {
1893 ret = PTR_ERR(skb);
1894 BT_ERR("%s: HCI_OP_READ_BD_ADDR failed (%ld)",
89e7533d 1895 hdev->name, ret);
c8abb73f
MH		 1896 goto done;
1897 }
1898
1899 if (skb->len != sizeof(*bda)) {
1900 BT_ERR("%s: HCI_OP_READ_BD_ADDR event length mismatch",
89e7533d 1901 hdev->name);
c8abb73f
MH		 1902 kfree_skb(skb);
1903 ret = -EIO;
1904 goto done;
1905 }
1906
89e7533d 1907 bda = (struct hci_rp_read_bd_addr *)skb->data;
c8abb73f
MH		 1908 if (bda->status) {
1909 BT_ERR("%s: HCI_OP_READ_BD_ADDR error status (%02x)",
1910 hdev->name, bda->status);
1911 kfree_skb(skb);
1912 ret = -bt_to_errno(bda->status);
1913 goto done;
1914 }
1915
1916 /* The address 00:20:70:02:A0:00 indicates a BCM20702A0 controller
1917 * with no configured address.
1918 */
849e5086 1919 if (!bacmp(&bda->bdaddr, BDADDR_BCM20702A0)) {
c8abb73f
MH		 1920 BT_INFO("%s: BCM: using default device address (%pMR)",
1921 hdev->name, &bda->bdaddr);
849e5086
MH		 1922 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
1923 }
c8abb73f
MH		 1924
1925 kfree_skb(skb);
1926
10d4c673
PG		 1927done:
1928 release_firmware(fw);
1929
1930 return ret;
1931}
1932
abbaf50e
MH		 1933static int btusb_set_bdaddr_bcm(struct hci_dev *hdev, const bdaddr_t *bdaddr)
1934{
1935 struct sk_buff *skb;
1936 long ret;
1937
1938 skb = __hci_cmd_sync(hdev, 0xfc01, 6, bdaddr, HCI_INIT_TIMEOUT);
1939 if (IS_ERR(skb)) {
1940 ret = PTR_ERR(skb);
1941 BT_ERR("%s: BCM: Change address command failed (%ld)",
89e7533d 1942 hdev->name, ret);
abbaf50e
MH		 1943 return ret;
1944 }
1945 kfree_skb(skb);
1946
1947 return 0;
1948}
1949
5859223e
TK		 1950static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
1951 const bdaddr_t *bdaddr)
1952{
1953 struct sk_buff *skb;
1954 u8 buf[10];
1955 long ret;
1956
1957 buf[0] = 0x01;
1958 buf[1] = 0x01;
1959 buf[2] = 0x00;
1960 buf[3] = sizeof(bdaddr_t);
1961 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
1962
1963 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
1964 if (IS_ERR(skb)) {
1965 ret = PTR_ERR(skb);
1966 BT_ERR("%s: Change address command failed (%ld)",
1967 hdev->name, ret);
1968 return ret;
1969 }
1970 kfree_skb(skb);
1971
1972 return 0;
1973}
1974
5e23b923 1975static int btusb_probe(struct usb_interface *intf,
89e7533d 1976 const struct usb_device_id *id)
5e23b923
MH		 1977{
1978 struct usb_endpoint_descriptor *ep_desc;
1979 struct btusb_data *data;
1980 struct hci_dev *hdev;
1981 int i, err;
1982
1983 BT_DBG("intf %p id %p", intf, id);
1984
cfeb4145 1985 /* interface numbers are hardcoded in the spec */
5e23b923
MH		 1986 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
1987 return -ENODEV;
1988
1989 if (!id->driver_info) {
1990 const struct usb_device_id *match;
89e7533d 1991
5e23b923
MH		 1992 match = usb_match_id(intf, blacklist_table);
1993 if (match)
1994 id = match;
1995 }
1996
cfeb4145
MH		 1997 if (id->driver_info == BTUSB_IGNORE)
1998 return -ENODEV;
1999
2d25f8b4
SL		 2000 if (id->driver_info & BTUSB_ATH3012) {
2001 struct usb_device *udev = interface_to_usbdev(intf);
2002
2003 /* Old firmware would otherwise let ath3k driver load
2004 * patch and sysconfig files */
2005 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
2006 return -ENODEV;
2007 }
2008
98921dbd 2009 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
5e23b923
MH		 2010 if (!data)
2011 return -ENOMEM;
2012
2013 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2014 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2015
2016 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
2017 data->intr_ep = ep_desc;
2018 continue;
2019 }
2020
2021 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
2022 data->bulk_tx_ep = ep_desc;
2023 continue;
2024 }
2025
2026 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
2027 data->bulk_rx_ep = ep_desc;
2028 continue;
2029 }
2030 }
2031
98921dbd 2032 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
5e23b923 2033 return -ENODEV;
5e23b923 2034
7a9d4020
MH		 2035 data->cmdreq_type = USB_TYPE_CLASS;
2036
5e23b923 2037 data->udev = interface_to_usbdev(intf);
5fbcd260 2038 data->intf = intf;
5e23b923 2039
5e23b923 2040 INIT_WORK(&data->work, btusb_work);
7bee549e 2041 INIT_WORK(&data->waker, btusb_waker);
803b5836
MH		 2042 init_usb_anchor(&data->deferred);
2043 init_usb_anchor(&data->tx_anchor);
7bee549e 2044 spin_lock_init(&data->txlock);
5e23b923 2045
5e23b923
MH		 2046 init_usb_anchor(&data->intr_anchor);
2047 init_usb_anchor(&data->bulk_anchor);
9bfa35fe 2048 init_usb_anchor(&data->isoc_anchor);
803b5836 2049 spin_lock_init(&data->rxlock);
5e23b923 2050
2cbd3f5c
MH		 2051 data->recv_bulk = btusb_recv_bulk;
2052
5e23b923 2053 hdev = hci_alloc_dev();
98921dbd 2054 if (!hdev)
5e23b923 2055 return -ENOMEM;
5e23b923 2056
c13854ce 2057 hdev->bus = HCI_USB;
155961e8 2058 hci_set_drvdata(hdev, data);
5e23b923
MH		 2059
2060 data->hdev = hdev;
2061
2062 SET_HCIDEV_DEV(hdev, &intf->dev);
2063
9f8f962c
MH		 2064 hdev->open = btusb_open;
2065 hdev->close = btusb_close;
2066 hdev->flush = btusb_flush;
2067 hdev->send = btusb_send_frame;
2068 hdev->notify = btusb_notify;
2069
2070 if (id->driver_info & BTUSB_BCM92035)
2071 hdev->setup = btusb_setup_bcm92035;
5e23b923 2072
abbaf50e 2073 if (id->driver_info & BTUSB_BCM_PATCHRAM) {
10d4c673 2074 hdev->setup = btusb_setup_bcm_patchram;
abbaf50e 2075 hdev->set_bdaddr = btusb_set_bdaddr_bcm;
27c3fbe0 2076 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
abbaf50e 2077 }
10d4c673 2078
cb8d6597 2079 if (id->driver_info & BTUSB_INTEL) {
dffd30ee 2080 hdev->setup = btusb_setup_intel;
cb8d6597
MH		 2081 hdev->set_bdaddr = btusb_set_bdaddr_intel;
2082 }
dffd30ee 2083
ae8df494
AK		 2084 if (id->driver_info & BTUSB_MARVELL)
2085 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
2086
4fcef8ed 2087 if (id->driver_info & BTUSB_SWAVE)
d57dbe77
MH		 2088 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
2089
40df783d
MH		 2090 if (id->driver_info & BTUSB_INTEL_BOOT)
2091 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
2092
5859223e
TK		 2093 if (id->driver_info & BTUSB_ATH3012)
2094 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
2095
7a9d4020 2096 /* Interface numbers are hardcoded in the specification */
9bfa35fe
MH		 2097 data->isoc = usb_ifnum_to_if(data->udev, 1);
2098
7a9d4020 2099 if (!reset)
a6c511c6 2100 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
cfeb4145
MH		 2101
2102 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
2103 if (!disable_scofix)
2104 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
2105 }
2106
9bfa35fe
MH		 2107 if (id->driver_info & BTUSB_BROKEN_ISOC)
2108 data->isoc = NULL;
2109
7a9d4020
MH		 2110 if (id->driver_info & BTUSB_DIGIANSWER) {
2111 data->cmdreq_type = USB_TYPE_VENDOR;
a6c511c6 2112 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
7a9d4020
MH		 2113 }
2114
2115 if (id->driver_info & BTUSB_CSR) {
2116 struct usb_device *udev = data->udev;
81cac64b 2117 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
7a9d4020
MH		 2118
2119 /* Old firmware would otherwise execute USB reset */
81cac64b 2120 if (bcdDevice < 0x117)
a6c511c6 2121 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
81cac64b
MH		 2122
2123 /* Fake CSR devices with broken commands */
2124 if (bcdDevice <= 0x100)
2125 hdev->setup = btusb_setup_csr;
7a9d4020
MH		 2126 }
2127
cfeb4145 2128 if (id->driver_info & BTUSB_SNIFFER) {
9bfa35fe 2129 struct usb_device *udev = data->udev;
cfeb4145 2130
7a9d4020 2131 /* New sniffer firmware has crippled HCI interface */
cfeb4145
MH		 2132 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
2133 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
2134 }
2135
3a5ef20c
MH		 2136 if (id->driver_info & BTUSB_INTEL_BOOT) {
2137 /* A bug in the bootloader causes that interrupt interface is
2138 * only enabled after receiving SetInterface(0, AltSetting=0).
2139 */
2140 err = usb_set_interface(data->udev, 0, 0);
2141 if (err < 0) {
2142 BT_ERR("failed to set interface 0, alt 0 %d", err);
2143 hci_free_dev(hdev);
2144 return err;
2145 }
2146 }
2147
9bfa35fe
MH		 2148 if (data->isoc) {
2149 err = usb_driver_claim_interface(&btusb_driver,
89e7533d 2150 data->isoc, data);
9bfa35fe
MH		 2151 if (err < 0) {
2152 hci_free_dev(hdev);
9bfa35fe
MH		 2153 return err;
2154 }
2155 }
2156
5e23b923
MH		 2157 err = hci_register_dev(hdev);
2158 if (err < 0) {
2159 hci_free_dev(hdev);
5e23b923
MH		 2160 return err;
2161 }
2162
2163 usb_set_intfdata(intf, data);
2164
2165 return 0;
2166}
2167
2168static void btusb_disconnect(struct usb_interface *intf)
2169{
2170 struct btusb_data *data = usb_get_intfdata(intf);
2171 struct hci_dev *hdev;
2172
2173 BT_DBG("intf %p", intf);
2174
2175 if (!data)
2176 return;
2177
2178 hdev = data->hdev;
5fbcd260
MH		 2179 usb_set_intfdata(data->intf, NULL);
2180
2181 if (data->isoc)
2182 usb_set_intfdata(data->isoc, NULL);
5e23b923
MH		 2183
2184 hci_unregister_dev(hdev);
2185
5fbcd260
MH		 2186 if (intf == data->isoc)
2187 usb_driver_release_interface(&btusb_driver, data->intf);
2188 else if (data->isoc)
2189 usb_driver_release_interface(&btusb_driver, data->isoc);
2190
803b5836 2191 btusb_free_frags(data);
5e23b923
MH		 2192 hci_free_dev(hdev);
2193}
2194
7bee549e 2195#ifdef CONFIG_PM
6a88adf2
MH		 2196static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
2197{
2198 struct btusb_data *data = usb_get_intfdata(intf);
2199
2200 BT_DBG("intf %p", intf);
2201
2202 if (data->suspend_count++)
2203 return 0;
2204
7bee549e 2205 spin_lock_irq(&data->txlock);
5b1b0b81 2206 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
7bee549e
ON		 2207 set_bit(BTUSB_SUSPENDING, &data->flags);
2208 spin_unlock_irq(&data->txlock);
2209 } else {
2210 spin_unlock_irq(&data->txlock);
2211 data->suspend_count--;
2212 return -EBUSY;
2213 }
2214
6a88adf2
MH		 2215 cancel_work_sync(&data->work);
2216
7bee549e 2217 btusb_stop_traffic(data);
6a88adf2
MH		 2218 usb_kill_anchored_urbs(&data->tx_anchor);
2219
6a88adf2
MH		 2220 return 0;
2221}
2222
7bee549e
ON		 2223static void play_deferred(struct btusb_data *data)
2224{
2225 struct urb *urb;
2226 int err;
2227
2228 while ((urb = usb_get_from_anchor(&data->deferred))) {
2229 err = usb_submit_urb(urb, GFP_ATOMIC);
2230 if (err < 0)
2231 break;
2232
2233 data->tx_in_flight++;
2234 }
2235 usb_scuttle_anchored_urbs(&data->deferred);
2236}
2237
6a88adf2
MH		 2238static int btusb_resume(struct usb_interface *intf)
2239{
2240 struct btusb_data *data = usb_get_intfdata(intf);
2241 struct hci_dev *hdev = data->hdev;
7bee549e 2242 int err = 0;
6a88adf2
MH		 2243
2244 BT_DBG("intf %p", intf);
2245
2246 if (--data->suspend_count)
2247 return 0;
2248
2249 if (!test_bit(HCI_RUNNING, &hdev->flags))
7bee549e 2250 goto done;
6a88adf2
MH		 2251
2252 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
2253 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
2254 if (err < 0) {
2255 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
7bee549e 2256 goto failed;
6a88adf2
MH		 2257 }
2258 }
2259
2260 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
43c2e57f
MH		 2261 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
2262 if (err < 0) {
6a88adf2 2263 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
7bee549e
ON		 2264 goto failed;
2265 }
2266
2267 btusb_submit_bulk_urb(hdev, GFP_NOIO);
6a88adf2
MH		 2268 }
2269
2270 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2271 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
2272 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2273 else
2274 btusb_submit_isoc_urb(hdev, GFP_NOIO);
2275 }
2276
7bee549e
ON		 2277 spin_lock_irq(&data->txlock);
2278 play_deferred(data);
2279 clear_bit(BTUSB_SUSPENDING, &data->flags);
2280 spin_unlock_irq(&data->txlock);
2281 schedule_work(&data->work);
2282
6a88adf2 2283 return 0;
7bee549e
ON		 2284
2285failed:
2286 usb_scuttle_anchored_urbs(&data->deferred);
2287done:
2288 spin_lock_irq(&data->txlock);
2289 clear_bit(BTUSB_SUSPENDING, &data->flags);
2290 spin_unlock_irq(&data->txlock);
2291
2292 return err;
6a88adf2 2293}
7bee549e 2294#endif
6a88adf2 2295
5e23b923
MH		 2296static struct usb_driver btusb_driver = {
2297 .name = "btusb",
2298 .probe = btusb_probe,
2299 .disconnect = btusb_disconnect,
7bee549e 2300#ifdef CONFIG_PM
6a88adf2
MH		 2301 .suspend = btusb_suspend,
2302 .resume = btusb_resume,
7bee549e 2303#endif
5e23b923 2304 .id_table = btusb_table,
7bee549e 2305 .supports_autosuspend = 1,
e1f12eb6 2306 .disable_hub_initiated_lpm = 1,
5e23b923
MH		 2307};
2308
93f1508c 2309module_usb_driver(btusb_driver);
5e23b923 2310
cfeb4145
MH		 2311module_param(disable_scofix, bool, 0644);
2312MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
2313
2314module_param(force_scofix, bool, 0644);
2315MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
2316
2317module_param(reset, bool, 0644);
2318MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
2319
5e23b923
MH		 2320MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
2321MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
2322MODULE_VERSION(VERSION);
2323MODULE_LICENSE("GPL");
Linux kernel - Deliverables
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