3 * Generic Bluetooth USB driver
5 * Copyright (C) 2005-2008 Marcel Holtmann <marcel@holtmann.org>
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.
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.
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
24 #include <linux/module.h>
25 #include <linux/usb.h>
26 #include <linux/firmware.h>
27 #include <asm/unaligned.h>
29 #include <net/bluetooth/bluetooth.h>
30 #include <net/bluetooth/hci_core.h>
37 static bool disable_scofix;
38 static bool force_scofix;
40 static bool reset = 1;
42 static struct usb_driver btusb_driver;
44 #define BTUSB_IGNORE 0x01
45 #define BTUSB_DIGIANSWER 0x02
46 #define BTUSB_CSR 0x04
47 #define BTUSB_SNIFFER 0x08
48 #define BTUSB_BCM92035 0x10
49 #define BTUSB_BROKEN_ISOC 0x20
50 #define BTUSB_WRONG_SCO_MTU 0x40
51 #define BTUSB_ATH3012 0x80
52 #define BTUSB_INTEL 0x100
53 #define BTUSB_INTEL_BOOT 0x200
54 #define BTUSB_BCM_PATCHRAM 0x400
55 #define BTUSB_MARVELL 0x800
56 #define BTUSB_SWAVE 0x1000
57 #define BTUSB_INTEL_NEW 0x2000
58 #define BTUSB_AMP 0x4000
59 #define BTUSB_QCA_ROME 0x8000
60 #define BTUSB_BCM_APPLE 0x10000
61 #define BTUSB_REALTEK 0x20000
63 static const struct usb_device_id btusb_table[] = {
64 /* Generic Bluetooth USB device */
65 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
67 /* Generic Bluetooth AMP device */
68 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP },
70 /* Apple-specific (Broadcom) devices */
71 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01),
72 .driver_info = BTUSB_BCM_APPLE },
74 /* MediaTek MT76x0E */
75 { USB_DEVICE(0x0e8d, 0x763f) },
77 /* Broadcom SoftSailing reporting vendor specific */
78 { USB_DEVICE(0x0a5c, 0x21e1) },
80 /* Apple MacBookPro 7,1 */
81 { USB_DEVICE(0x05ac, 0x8213) },
84 { USB_DEVICE(0x05ac, 0x8215) },
86 /* Apple MacBookPro6,2 */
87 { USB_DEVICE(0x05ac, 0x8218) },
89 /* Apple MacBookAir3,1, MacBookAir3,2 */
90 { USB_DEVICE(0x05ac, 0x821b) },
92 /* Apple MacBookAir4,1 */
93 { USB_DEVICE(0x05ac, 0x821f) },
95 /* Apple MacBookPro8,2 */
96 { USB_DEVICE(0x05ac, 0x821a) },
98 /* Apple MacMini5,1 */
99 { USB_DEVICE(0x05ac, 0x8281) },
101 /* AVM BlueFRITZ! USB v2.0 */
102 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE },
104 /* Bluetooth Ultraport Module from IBM */
105 { USB_DEVICE(0x04bf, 0x030a) },
107 /* ALPS Modules with non-standard id */
108 { USB_DEVICE(0x044e, 0x3001) },
109 { USB_DEVICE(0x044e, 0x3002) },
111 /* Ericsson with non-standard id */
112 { USB_DEVICE(0x0bdb, 0x1002) },
114 /* Canyon CN-BTU1 with HID interfaces */
115 { USB_DEVICE(0x0c10, 0x0000) },
117 /* Broadcom BCM20702A0 */
118 { USB_DEVICE(0x413c, 0x8197) },
120 /* Broadcom BCM20702B0 (Dynex/Insignia) */
121 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM },
123 /* Foxconn - Hon Hai */
124 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01),
125 .driver_info = BTUSB_BCM_PATCHRAM },
127 /* Lite-On Technology - Broadcom based */
128 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01),
129 .driver_info = BTUSB_BCM_PATCHRAM },
131 /* Broadcom devices with vendor specific id */
132 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01),
133 .driver_info = BTUSB_BCM_PATCHRAM },
135 /* ASUSTek Computer - Broadcom based */
136 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01),
137 .driver_info = BTUSB_BCM_PATCHRAM },
139 /* Belkin F8065bf - Broadcom based */
140 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01),
141 .driver_info = BTUSB_BCM_PATCHRAM },
143 /* IMC Networks - Broadcom based */
144 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01),
145 .driver_info = BTUSB_BCM_PATCHRAM },
147 /* Intel Bluetooth USB Bootloader (RAM module) */
148 { USB_DEVICE(0x8087, 0x0a5a),
149 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
151 { } /* Terminating entry */
154 MODULE_DEVICE_TABLE(usb, btusb_table);
156 static const struct usb_device_id blacklist_table[] = {
157 /* CSR BlueCore devices */
158 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
160 /* Broadcom BCM2033 without firmware */
161 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
163 /* Atheros 3011 with sflash firmware */
164 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
165 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
166 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE },
167 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
168 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
169 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
170 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
172 /* Atheros AR9285 Malbec with sflash firmware */
173 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
175 /* Atheros 3012 with sflash firmware */
176 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
177 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
178 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
179 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
180 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
181 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
182 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
183 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
184 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
185 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
186 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
187 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
188 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
189 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
190 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
191 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
192 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
193 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
194 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
195 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
196 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
197 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
198 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
199 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
200 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
201 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
202 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
203 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
204 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
205 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
206 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
207 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
208 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
209 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
210 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
211 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
212 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
213 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
214 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
215 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
216 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
218 /* Atheros AR5BBU12 with sflash firmware */
219 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
221 /* Atheros AR5BBU12 with sflash firmware */
222 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
223 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
225 /* QCA ROME chipset */
226 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME },
227 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME },
228 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME },
230 /* Broadcom BCM2035 */
231 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
232 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
233 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
235 /* Broadcom BCM2045 */
236 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
237 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
239 /* IBM/Lenovo ThinkPad with Broadcom chip */
240 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
241 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
243 /* HP laptop with Broadcom chip */
244 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
246 /* Dell laptop with Broadcom chip */
247 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
249 /* Dell Wireless 370 and 410 devices */
250 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
251 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
253 /* Belkin F8T012 and F8T013 devices */
254 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
255 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
257 /* Asus WL-BTD202 device */
258 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
260 /* Kensington Bluetooth USB adapter */
261 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
263 /* RTX Telecom based adapters with buggy SCO support */
264 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
265 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
267 /* CONWISE Technology based adapters with buggy SCO support */
268 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
270 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
271 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE },
273 /* Digianswer devices */
274 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
275 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
277 /* CSR BlueCore Bluetooth Sniffer */
278 { USB_DEVICE(0x0a12, 0x0002),
279 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
281 /* Frontline ComProbe Bluetooth Sniffer */
282 { USB_DEVICE(0x16d3, 0x0002),
283 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
285 /* Marvell Bluetooth devices */
286 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
287 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
289 /* Intel Bluetooth devices */
290 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
291 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
292 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL },
293 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_NEW },
295 /* Other Intel Bluetooth devices */
296 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
297 .driver_info = BTUSB_IGNORE },
299 /* Realtek Bluetooth devices */
300 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
301 .driver_info = BTUSB_REALTEK },
303 /* Additional Realtek 8723AE Bluetooth devices */
304 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
305 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
307 /* Additional Realtek 8723BE Bluetooth devices */
308 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
309 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
310 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
311 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
312 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
314 /* Additional Realtek 8821AE Bluetooth devices */
315 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
316 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
317 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
318 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
319 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
321 { } /* Terminating entry */
324 #define BTUSB_MAX_ISOC_FRAMES 10
326 #define BTUSB_INTR_RUNNING 0
327 #define BTUSB_BULK_RUNNING 1
328 #define BTUSB_ISOC_RUNNING 2
329 #define BTUSB_SUSPENDING 3
330 #define BTUSB_DID_ISO_RESUME 4
331 #define BTUSB_BOOTLOADER 5
332 #define BTUSB_DOWNLOADING 6
333 #define BTUSB_FIRMWARE_LOADED 7
334 #define BTUSB_FIRMWARE_FAILED 8
335 #define BTUSB_BOOTING 9
338 struct hci_dev *hdev;
339 struct usb_device *udev;
340 struct usb_interface *intf;
341 struct usb_interface *isoc;
345 struct work_struct work;
346 struct work_struct waker;
348 struct usb_anchor deferred;
349 struct usb_anchor tx_anchor;
353 struct usb_anchor intr_anchor;
354 struct usb_anchor bulk_anchor;
355 struct usb_anchor isoc_anchor;
358 struct sk_buff *evt_skb;
359 struct sk_buff *acl_skb;
360 struct sk_buff *sco_skb;
362 struct usb_endpoint_descriptor *intr_ep;
363 struct usb_endpoint_descriptor *bulk_tx_ep;
364 struct usb_endpoint_descriptor *bulk_rx_ep;
365 struct usb_endpoint_descriptor *isoc_tx_ep;
366 struct usb_endpoint_descriptor *isoc_rx_ep;
371 unsigned int sco_num;
375 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
376 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
378 int (*setup_on_usb)(struct hci_dev *hdev);
381 static inline void btusb_free_frags(struct btusb_data *data)
385 spin_lock_irqsave(&data->rxlock, flags);
387 kfree_skb(data->evt_skb);
388 data->evt_skb = NULL;
390 kfree_skb(data->acl_skb);
391 data->acl_skb = NULL;
393 kfree_skb(data->sco_skb);
394 data->sco_skb = NULL;
396 spin_unlock_irqrestore(&data->rxlock, flags);
399 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
404 spin_lock(&data->rxlock);
411 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
417 bt_cb(skb)->pkt_type = HCI_EVENT_PKT;
418 bt_cb(skb)->expect = HCI_EVENT_HDR_SIZE;
421 len = min_t(uint, bt_cb(skb)->expect, count);
422 memcpy(skb_put(skb, len), buffer, len);
426 bt_cb(skb)->expect -= len;
428 if (skb->len == HCI_EVENT_HDR_SIZE) {
429 /* Complete event header */
430 bt_cb(skb)->expect = hci_event_hdr(skb)->plen;
432 if (skb_tailroom(skb) < bt_cb(skb)->expect) {
441 if (bt_cb(skb)->expect == 0) {
443 data->recv_event(data->hdev, skb);
449 spin_unlock(&data->rxlock);
454 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
459 spin_lock(&data->rxlock);
466 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
472 bt_cb(skb)->pkt_type = HCI_ACLDATA_PKT;
473 bt_cb(skb)->expect = HCI_ACL_HDR_SIZE;
476 len = min_t(uint, bt_cb(skb)->expect, count);
477 memcpy(skb_put(skb, len), buffer, len);
481 bt_cb(skb)->expect -= len;
483 if (skb->len == HCI_ACL_HDR_SIZE) {
484 __le16 dlen = hci_acl_hdr(skb)->dlen;
486 /* Complete ACL header */
487 bt_cb(skb)->expect = __le16_to_cpu(dlen);
489 if (skb_tailroom(skb) < bt_cb(skb)->expect) {
498 if (bt_cb(skb)->expect == 0) {
500 hci_recv_frame(data->hdev, skb);
506 spin_unlock(&data->rxlock);
511 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
516 spin_lock(&data->rxlock);
523 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
529 bt_cb(skb)->pkt_type = HCI_SCODATA_PKT;
530 bt_cb(skb)->expect = HCI_SCO_HDR_SIZE;
533 len = min_t(uint, bt_cb(skb)->expect, count);
534 memcpy(skb_put(skb, len), buffer, len);
538 bt_cb(skb)->expect -= len;
540 if (skb->len == HCI_SCO_HDR_SIZE) {
541 /* Complete SCO header */
542 bt_cb(skb)->expect = hci_sco_hdr(skb)->dlen;
544 if (skb_tailroom(skb) < bt_cb(skb)->expect) {
553 if (bt_cb(skb)->expect == 0) {
555 hci_recv_frame(data->hdev, skb);
561 spin_unlock(&data->rxlock);
566 static void btusb_intr_complete(struct urb *urb)
568 struct hci_dev *hdev = urb->context;
569 struct btusb_data *data = hci_get_drvdata(hdev);
572 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
575 if (!test_bit(HCI_RUNNING, &hdev->flags))
578 if (urb->status == 0) {
579 hdev->stat.byte_rx += urb->actual_length;
581 if (btusb_recv_intr(data, urb->transfer_buffer,
582 urb->actual_length) < 0) {
583 BT_ERR("%s corrupted event packet", hdev->name);
586 } else if (urb->status == -ENOENT) {
587 /* Avoid suspend failed when usb_kill_urb */
591 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
594 usb_mark_last_busy(data->udev);
595 usb_anchor_urb(urb, &data->intr_anchor);
597 err = usb_submit_urb(urb, GFP_ATOMIC);
599 /* -EPERM: urb is being killed;
600 * -ENODEV: device got disconnected */
601 if (err != -EPERM && err != -ENODEV)
602 BT_ERR("%s urb %p failed to resubmit (%d)",
603 hdev->name, urb, -err);
604 usb_unanchor_urb(urb);
608 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
610 struct btusb_data *data = hci_get_drvdata(hdev);
616 BT_DBG("%s", hdev->name);
621 urb = usb_alloc_urb(0, mem_flags);
625 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
627 buf = kmalloc(size, mem_flags);
633 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
635 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
636 btusb_intr_complete, hdev, data->intr_ep->bInterval);
638 urb->transfer_flags |= URB_FREE_BUFFER;
640 usb_anchor_urb(urb, &data->intr_anchor);
642 err = usb_submit_urb(urb, mem_flags);
644 if (err != -EPERM && err != -ENODEV)
645 BT_ERR("%s urb %p submission failed (%d)",
646 hdev->name, urb, -err);
647 usb_unanchor_urb(urb);
655 static void btusb_bulk_complete(struct urb *urb)
657 struct hci_dev *hdev = urb->context;
658 struct btusb_data *data = hci_get_drvdata(hdev);
661 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
664 if (!test_bit(HCI_RUNNING, &hdev->flags))
667 if (urb->status == 0) {
668 hdev->stat.byte_rx += urb->actual_length;
670 if (data->recv_bulk(data, urb->transfer_buffer,
671 urb->actual_length) < 0) {
672 BT_ERR("%s corrupted ACL packet", hdev->name);
675 } else if (urb->status == -ENOENT) {
676 /* Avoid suspend failed when usb_kill_urb */
680 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
683 usb_anchor_urb(urb, &data->bulk_anchor);
684 usb_mark_last_busy(data->udev);
686 err = usb_submit_urb(urb, GFP_ATOMIC);
688 /* -EPERM: urb is being killed;
689 * -ENODEV: device got disconnected */
690 if (err != -EPERM && err != -ENODEV)
691 BT_ERR("%s urb %p failed to resubmit (%d)",
692 hdev->name, urb, -err);
693 usb_unanchor_urb(urb);
697 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
699 struct btusb_data *data = hci_get_drvdata(hdev);
703 int err, size = HCI_MAX_FRAME_SIZE;
705 BT_DBG("%s", hdev->name);
707 if (!data->bulk_rx_ep)
710 urb = usb_alloc_urb(0, mem_flags);
714 buf = kmalloc(size, mem_flags);
720 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
722 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
723 btusb_bulk_complete, hdev);
725 urb->transfer_flags |= URB_FREE_BUFFER;
727 usb_mark_last_busy(data->udev);
728 usb_anchor_urb(urb, &data->bulk_anchor);
730 err = usb_submit_urb(urb, mem_flags);
732 if (err != -EPERM && err != -ENODEV)
733 BT_ERR("%s urb %p submission failed (%d)",
734 hdev->name, urb, -err);
735 usb_unanchor_urb(urb);
743 static void btusb_isoc_complete(struct urb *urb)
745 struct hci_dev *hdev = urb->context;
746 struct btusb_data *data = hci_get_drvdata(hdev);
749 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
752 if (!test_bit(HCI_RUNNING, &hdev->flags))
755 if (urb->status == 0) {
756 for (i = 0; i < urb->number_of_packets; i++) {
757 unsigned int offset = urb->iso_frame_desc[i].offset;
758 unsigned int length = urb->iso_frame_desc[i].actual_length;
760 if (urb->iso_frame_desc[i].status)
763 hdev->stat.byte_rx += length;
765 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
767 BT_ERR("%s corrupted SCO packet", hdev->name);
771 } else if (urb->status == -ENOENT) {
772 /* Avoid suspend failed when usb_kill_urb */
776 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
779 usb_anchor_urb(urb, &data->isoc_anchor);
781 err = usb_submit_urb(urb, GFP_ATOMIC);
783 /* -EPERM: urb is being killed;
784 * -ENODEV: device got disconnected */
785 if (err != -EPERM && err != -ENODEV)
786 BT_ERR("%s urb %p failed to resubmit (%d)",
787 hdev->name, urb, -err);
788 usb_unanchor_urb(urb);
792 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
796 BT_DBG("len %d mtu %d", len, mtu);
798 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
799 i++, offset += mtu, len -= mtu) {
800 urb->iso_frame_desc[i].offset = offset;
801 urb->iso_frame_desc[i].length = mtu;
804 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
805 urb->iso_frame_desc[i].offset = offset;
806 urb->iso_frame_desc[i].length = len;
810 urb->number_of_packets = i;
813 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
815 struct btusb_data *data = hci_get_drvdata(hdev);
821 BT_DBG("%s", hdev->name);
823 if (!data->isoc_rx_ep)
826 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
830 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
831 BTUSB_MAX_ISOC_FRAMES;
833 buf = kmalloc(size, mem_flags);
839 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
841 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
842 hdev, data->isoc_rx_ep->bInterval);
844 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
846 __fill_isoc_descriptor(urb, size,
847 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
849 usb_anchor_urb(urb, &data->isoc_anchor);
851 err = usb_submit_urb(urb, mem_flags);
853 if (err != -EPERM && err != -ENODEV)
854 BT_ERR("%s urb %p submission failed (%d)",
855 hdev->name, urb, -err);
856 usb_unanchor_urb(urb);
864 static void btusb_tx_complete(struct urb *urb)
866 struct sk_buff *skb = urb->context;
867 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
868 struct btusb_data *data = hci_get_drvdata(hdev);
870 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
873 if (!test_bit(HCI_RUNNING, &hdev->flags))
877 hdev->stat.byte_tx += urb->transfer_buffer_length;
882 spin_lock(&data->txlock);
883 data->tx_in_flight--;
884 spin_unlock(&data->txlock);
886 kfree(urb->setup_packet);
891 static void btusb_isoc_tx_complete(struct urb *urb)
893 struct sk_buff *skb = urb->context;
894 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
896 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
899 if (!test_bit(HCI_RUNNING, &hdev->flags))
903 hdev->stat.byte_tx += urb->transfer_buffer_length;
908 kfree(urb->setup_packet);
913 static int btusb_open(struct hci_dev *hdev)
915 struct btusb_data *data = hci_get_drvdata(hdev);
918 BT_DBG("%s", hdev->name);
920 /* Patching USB firmware files prior to starting any URBs of HCI path
921 * It is more safe to use USB bulk channel for downloading USB patch
923 if (data->setup_on_usb) {
924 err = data->setup_on_usb(hdev);
929 err = usb_autopm_get_interface(data->intf);
933 data->intf->needs_remote_wakeup = 1;
935 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
938 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
941 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
945 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
947 usb_kill_anchored_urbs(&data->intr_anchor);
951 set_bit(BTUSB_BULK_RUNNING, &data->flags);
952 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
955 usb_autopm_put_interface(data->intf);
959 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
960 clear_bit(HCI_RUNNING, &hdev->flags);
961 usb_autopm_put_interface(data->intf);
965 static void btusb_stop_traffic(struct btusb_data *data)
967 usb_kill_anchored_urbs(&data->intr_anchor);
968 usb_kill_anchored_urbs(&data->bulk_anchor);
969 usb_kill_anchored_urbs(&data->isoc_anchor);
972 static int btusb_close(struct hci_dev *hdev)
974 struct btusb_data *data = hci_get_drvdata(hdev);
977 BT_DBG("%s", hdev->name);
979 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
982 cancel_work_sync(&data->work);
983 cancel_work_sync(&data->waker);
985 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
986 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
987 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
989 btusb_stop_traffic(data);
990 btusb_free_frags(data);
992 err = usb_autopm_get_interface(data->intf);
996 data->intf->needs_remote_wakeup = 0;
997 usb_autopm_put_interface(data->intf);
1000 usb_scuttle_anchored_urbs(&data->deferred);
1004 static int btusb_flush(struct hci_dev *hdev)
1006 struct btusb_data *data = hci_get_drvdata(hdev);
1008 BT_DBG("%s", hdev->name);
1010 usb_kill_anchored_urbs(&data->tx_anchor);
1011 btusb_free_frags(data);
1016 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
1018 struct btusb_data *data = hci_get_drvdata(hdev);
1019 struct usb_ctrlrequest *dr;
1023 urb = usb_alloc_urb(0, GFP_KERNEL);
1025 return ERR_PTR(-ENOMEM);
1027 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
1030 return ERR_PTR(-ENOMEM);
1033 dr->bRequestType = data->cmdreq_type;
1034 dr->bRequest = data->cmdreq;
1037 dr->wLength = __cpu_to_le16(skb->len);
1039 pipe = usb_sndctrlpipe(data->udev, 0x00);
1041 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
1042 skb->data, skb->len, btusb_tx_complete, skb);
1044 skb->dev = (void *)hdev;
1049 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
1051 struct btusb_data *data = hci_get_drvdata(hdev);
1055 if (!data->bulk_tx_ep)
1056 return ERR_PTR(-ENODEV);
1058 urb = usb_alloc_urb(0, GFP_KERNEL);
1060 return ERR_PTR(-ENOMEM);
1062 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
1064 usb_fill_bulk_urb(urb, data->udev, pipe,
1065 skb->data, skb->len, btusb_tx_complete, skb);
1067 skb->dev = (void *)hdev;
1072 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
1074 struct btusb_data *data = hci_get_drvdata(hdev);
1078 if (!data->isoc_tx_ep)
1079 return ERR_PTR(-ENODEV);
1081 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
1083 return ERR_PTR(-ENOMEM);
1085 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
1087 usb_fill_int_urb(urb, data->udev, pipe,
1088 skb->data, skb->len, btusb_isoc_tx_complete,
1089 skb, data->isoc_tx_ep->bInterval);
1091 urb->transfer_flags = URB_ISO_ASAP;
1093 __fill_isoc_descriptor(urb, skb->len,
1094 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
1096 skb->dev = (void *)hdev;
1101 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
1103 struct btusb_data *data = hci_get_drvdata(hdev);
1106 usb_anchor_urb(urb, &data->tx_anchor);
1108 err = usb_submit_urb(urb, GFP_KERNEL);
1110 if (err != -EPERM && err != -ENODEV)
1111 BT_ERR("%s urb %p submission failed (%d)",
1112 hdev->name, urb, -err);
1113 kfree(urb->setup_packet);
1114 usb_unanchor_urb(urb);
1116 usb_mark_last_busy(data->udev);
1123 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
1125 struct btusb_data *data = hci_get_drvdata(hdev);
1126 unsigned long flags;
1129 spin_lock_irqsave(&data->txlock, flags);
1130 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
1132 data->tx_in_flight++;
1133 spin_unlock_irqrestore(&data->txlock, flags);
1136 return submit_tx_urb(hdev, urb);
1138 usb_anchor_urb(urb, &data->deferred);
1139 schedule_work(&data->waker);
1145 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
1149 BT_DBG("%s", hdev->name);
1151 if (!test_bit(HCI_RUNNING, &hdev->flags))
1154 switch (bt_cb(skb)->pkt_type) {
1155 case HCI_COMMAND_PKT:
1156 urb = alloc_ctrl_urb(hdev, skb);
1158 return PTR_ERR(urb);
1160 hdev->stat.cmd_tx++;
1161 return submit_or_queue_tx_urb(hdev, urb);
1163 case HCI_ACLDATA_PKT:
1164 urb = alloc_bulk_urb(hdev, skb);
1166 return PTR_ERR(urb);
1168 hdev->stat.acl_tx++;
1169 return submit_or_queue_tx_urb(hdev, urb);
1171 case HCI_SCODATA_PKT:
1172 if (hci_conn_num(hdev, SCO_LINK) < 1)
1175 urb = alloc_isoc_urb(hdev, skb);
1177 return PTR_ERR(urb);
1179 hdev->stat.sco_tx++;
1180 return submit_tx_urb(hdev, urb);
1186 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
1188 struct btusb_data *data = hci_get_drvdata(hdev);
1190 BT_DBG("%s evt %d", hdev->name, evt);
1192 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
1193 data->sco_num = hci_conn_num(hdev, SCO_LINK);
1194 schedule_work(&data->work);
1198 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
1200 struct btusb_data *data = hci_get_drvdata(hdev);
1201 struct usb_interface *intf = data->isoc;
1202 struct usb_endpoint_descriptor *ep_desc;
1208 err = usb_set_interface(data->udev, 1, altsetting);
1210 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
1214 data->isoc_altsetting = altsetting;
1216 data->isoc_tx_ep = NULL;
1217 data->isoc_rx_ep = NULL;
1219 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1220 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1222 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
1223 data->isoc_tx_ep = ep_desc;
1227 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
1228 data->isoc_rx_ep = ep_desc;
1233 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
1234 BT_ERR("%s invalid SCO descriptors", hdev->name);
1241 static void btusb_work(struct work_struct *work)
1243 struct btusb_data *data = container_of(work, struct btusb_data, work);
1244 struct hci_dev *hdev = data->hdev;
1248 if (data->sco_num > 0) {
1249 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
1250 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
1252 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1253 usb_kill_anchored_urbs(&data->isoc_anchor);
1257 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
1260 if (hdev->voice_setting & 0x0020) {
1261 static const int alts[3] = { 2, 4, 5 };
1263 new_alts = alts[data->sco_num - 1];
1265 new_alts = data->sco_num;
1268 if (data->isoc_altsetting != new_alts) {
1269 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1270 usb_kill_anchored_urbs(&data->isoc_anchor);
1272 if (__set_isoc_interface(hdev, new_alts) < 0)
1276 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1277 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
1278 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1280 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
1283 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1284 usb_kill_anchored_urbs(&data->isoc_anchor);
1286 __set_isoc_interface(hdev, 0);
1287 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
1288 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
1292 static void btusb_waker(struct work_struct *work)
1294 struct btusb_data *data = container_of(work, struct btusb_data, waker);
1297 err = usb_autopm_get_interface(data->intf);
1301 usb_autopm_put_interface(data->intf);
1304 static struct sk_buff *btusb_read_local_version(struct hci_dev *hdev)
1306 struct sk_buff *skb;
1308 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1311 BT_ERR("%s: HCI_OP_READ_LOCAL_VERSION failed (%ld)",
1312 hdev->name, PTR_ERR(skb));
1316 if (skb->len != sizeof(struct hci_rp_read_local_version)) {
1317 BT_ERR("%s: HCI_OP_READ_LOCAL_VERSION event length mismatch",
1320 return ERR_PTR(-EIO);
1326 static int btusb_setup_bcm92035(struct hci_dev *hdev)
1328 struct sk_buff *skb;
1331 BT_DBG("%s", hdev->name);
1333 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
1335 BT_ERR("BCM92035 command failed (%ld)", -PTR_ERR(skb));
1342 static int btusb_setup_csr(struct hci_dev *hdev)
1344 struct hci_rp_read_local_version *rp;
1345 struct sk_buff *skb;
1348 BT_DBG("%s", hdev->name);
1350 skb = btusb_read_local_version(hdev);
1352 return -PTR_ERR(skb);
1354 rp = (struct hci_rp_read_local_version *)skb->data;
1357 if (le16_to_cpu(rp->manufacturer) != 10) {
1358 /* Clear the reset quirk since this is not an actual
1359 * early Bluetooth 1.1 device from CSR.
1361 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1363 /* These fake CSR controllers have all a broken
1364 * stored link key handling and so just disable it.
1366 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY,
1371 ret = -bt_to_errno(rp->status);
1378 #define RTL_FRAG_LEN 252
1380 struct rtl_download_cmd {
1382 __u8 data[RTL_FRAG_LEN];
1385 struct rtl_download_response {
1390 struct rtl_rom_version_evt {
1395 struct rtl_epatch_header {
1401 #define RTL_EPATCH_SIGNATURE "Realtech"
1402 #define RTL_ROM_LMP_3499 0x3499
1403 #define RTL_ROM_LMP_8723A 0x1200
1404 #define RTL_ROM_LMP_8723B 0x8723
1405 #define RTL_ROM_LMP_8821A 0x8821
1406 #define RTL_ROM_LMP_8761A 0x8761
1408 static int rtl_read_rom_version(struct hci_dev *hdev, u8 *version)
1410 struct rtl_rom_version_evt *rom_version;
1411 struct sk_buff *skb;
1414 /* Read RTL ROM version command */
1415 skb = __hci_cmd_sync(hdev, 0xfc6d, 0, NULL, HCI_INIT_TIMEOUT);
1417 BT_ERR("%s: Read ROM version failed (%ld)",
1418 hdev->name, PTR_ERR(skb));
1419 return PTR_ERR(skb);
1422 if (skb->len != sizeof(*rom_version)) {
1423 BT_ERR("%s: RTL version event length mismatch", hdev->name);
1428 rom_version = (struct rtl_rom_version_evt *)skb->data;
1429 BT_INFO("%s: rom_version status=%x version=%x",
1430 hdev->name, rom_version->status, rom_version->version);
1432 ret = rom_version->status;
1434 *version = rom_version->version;
1440 static int rtl8723b_parse_firmware(struct hci_dev *hdev, u16 lmp_subver,
1441 const struct firmware *fw,
1442 unsigned char **_buf)
1444 const u8 extension_sig[] = { 0x51, 0x04, 0xfd, 0x77 };
1445 struct rtl_epatch_header *epatch_info;
1449 u8 opcode, length, data, rom_version = 0;
1450 int project_id = -1;
1451 const unsigned char *fwptr, *chip_id_base;
1452 const unsigned char *patch_length_base, *patch_offset_base;
1453 u32 patch_offset = 0;
1454 u16 patch_length, num_patches;
1455 const u16 project_id_to_lmp_subver[] = {
1462 ret = rtl_read_rom_version(hdev, &rom_version);
1464 return -bt_to_errno(ret);
1466 min_size = sizeof(struct rtl_epatch_header) + sizeof(extension_sig) + 3;
1467 if (fw->size < min_size)
1470 fwptr = fw->data + fw->size - sizeof(extension_sig);
1471 if (memcmp(fwptr, extension_sig, sizeof(extension_sig)) != 0) {
1472 BT_ERR("%s: extension section signature mismatch", hdev->name);
1476 /* Loop from the end of the firmware parsing instructions, until
1477 * we find an instruction that identifies the "project ID" for the
1478 * hardware supported by this firwmare file.
1479 * Once we have that, we double-check that that project_id is suitable
1480 * for the hardware we are working with.
1482 while (fwptr >= fw->data + (sizeof(struct rtl_epatch_header) + 3)) {
1487 BT_DBG("check op=%x len=%x data=%x", opcode, length, data);
1489 if (opcode == 0xff) /* EOF */
1493 BT_ERR("%s: found instruction with length 0",
1498 if (opcode == 0 && length == 1) {
1506 if (project_id < 0) {
1507 BT_ERR("%s: failed to find version instruction", hdev->name);
1511 if (project_id >= ARRAY_SIZE(project_id_to_lmp_subver)) {
1512 BT_ERR("%s: unknown project id %d", hdev->name, project_id);
1516 if (lmp_subver != project_id_to_lmp_subver[project_id]) {
1517 BT_ERR("%s: firmware is for %x but this is a %x", hdev->name,
1518 project_id_to_lmp_subver[project_id], lmp_subver);
1522 epatch_info = (struct rtl_epatch_header *)fw->data;
1523 if (memcmp(epatch_info->signature, RTL_EPATCH_SIGNATURE, 8) != 0) {
1524 BT_ERR("%s: bad EPATCH signature", hdev->name);
1528 num_patches = le16_to_cpu(epatch_info->num_patches);
1529 BT_DBG("fw_version=%x, num_patches=%d",
1530 le32_to_cpu(epatch_info->fw_version), num_patches);
1532 /* After the rtl_epatch_header there is a funky patch metadata section.
1533 * Assuming 2 patches, the layout is:
1534 * ChipID1 ChipID2 PatchLength1 PatchLength2 PatchOffset1 PatchOffset2
1536 * Find the right patch for this chip.
1538 min_size += 8 * num_patches;
1539 if (fw->size < min_size)
1542 chip_id_base = fw->data + sizeof(struct rtl_epatch_header);
1543 patch_length_base = chip_id_base + (sizeof(u16) * num_patches);
1544 patch_offset_base = patch_length_base + (sizeof(u16) * num_patches);
1545 for (i = 0; i < num_patches; i++) {
1546 u16 chip_id = get_unaligned_le16(chip_id_base +
1548 if (chip_id == rom_version + 1) {
1549 patch_length = get_unaligned_le16(patch_length_base +
1551 patch_offset = get_unaligned_le32(patch_offset_base +
1557 if (!patch_offset) {
1558 BT_ERR("%s: didn't find patch for chip id %d",
1559 hdev->name, rom_version);
1563 BT_DBG("length=%x offset=%x index %d", patch_length, patch_offset, i);
1564 min_size = patch_offset + patch_length;
1565 if (fw->size < min_size)
1568 /* Copy the firmware into a new buffer and write the version at
1572 buf = kmemdup(fw->data + patch_offset, patch_length, GFP_KERNEL);
1576 memcpy(buf + patch_length - 4, &epatch_info->fw_version, 4);
1582 static int rtl_download_firmware(struct hci_dev *hdev,
1583 const unsigned char *data, int fw_len)
1585 struct rtl_download_cmd *dl_cmd;
1586 int frag_num = fw_len / RTL_FRAG_LEN + 1;
1587 int frag_len = RTL_FRAG_LEN;
1591 dl_cmd = kmalloc(sizeof(struct rtl_download_cmd), GFP_KERNEL);
1595 for (i = 0; i < frag_num; i++) {
1596 struct rtl_download_response *dl_resp;
1597 struct sk_buff *skb;
1599 BT_DBG("download fw (%d/%d)", i, frag_num);
1602 if (i == (frag_num - 1)) {
1603 dl_cmd->index |= 0x80; /* data end */
1604 frag_len = fw_len % RTL_FRAG_LEN;
1606 memcpy(dl_cmd->data, data, frag_len);
1608 /* Send download command */
1609 skb = __hci_cmd_sync(hdev, 0xfc20, frag_len + 1, dl_cmd,
1612 BT_ERR("%s: download fw command failed (%ld)",
1613 hdev->name, PTR_ERR(skb));
1614 ret = -PTR_ERR(skb);
1618 if (skb->len != sizeof(*dl_resp)) {
1619 BT_ERR("%s: download fw event length mismatch",
1626 dl_resp = (struct rtl_download_response *)skb->data;
1627 if (dl_resp->status != 0) {
1629 ret = bt_to_errno(dl_resp->status);
1634 data += RTL_FRAG_LEN;
1642 static int btusb_setup_rtl8723a(struct hci_dev *hdev)
1644 struct btusb_data *data = dev_get_drvdata(&hdev->dev);
1645 struct usb_device *udev = interface_to_usbdev(data->intf);
1646 const struct firmware *fw;
1649 BT_INFO("%s: rtl: loading rtl_bt/rtl8723a_fw.bin", hdev->name);
1650 ret = request_firmware(&fw, "rtl_bt/rtl8723a_fw.bin", &udev->dev);
1652 BT_ERR("%s: Failed to load rtl_bt/rtl8723a_fw.bin", hdev->name);
1661 /* Check that the firmware doesn't have the epatch signature
1662 * (which is only for RTL8723B and newer).
1664 if (!memcmp(fw->data, RTL_EPATCH_SIGNATURE, 8)) {
1665 BT_ERR("%s: unexpected EPATCH signature!", hdev->name);
1670 ret = rtl_download_firmware(hdev, fw->data, fw->size);
1673 release_firmware(fw);
1677 static int btusb_setup_rtl8723b(struct hci_dev *hdev, u16 lmp_subver,
1678 const char *fw_name)
1680 struct btusb_data *data = dev_get_drvdata(&hdev->dev);
1681 struct usb_device *udev = interface_to_usbdev(data->intf);
1682 unsigned char *fw_data = NULL;
1683 const struct firmware *fw;
1686 BT_INFO("%s: rtl: loading %s", hdev->name, fw_name);
1687 ret = request_firmware(&fw, fw_name, &udev->dev);
1689 BT_ERR("%s: Failed to load %s", hdev->name, fw_name);
1693 ret = rtl8723b_parse_firmware(hdev, lmp_subver, fw, &fw_data);
1697 ret = rtl_download_firmware(hdev, fw_data, ret);
1703 release_firmware(fw);
1707 static int btusb_setup_realtek(struct hci_dev *hdev)
1709 struct sk_buff *skb;
1710 struct hci_rp_read_local_version *resp;
1713 skb = btusb_read_local_version(hdev);
1715 return -PTR_ERR(skb);
1717 resp = (struct hci_rp_read_local_version *)skb->data;
1718 BT_INFO("%s: rtl: examining hci_ver=%02x hci_rev=%04x lmp_ver=%02x "
1719 "lmp_subver=%04x", hdev->name, resp->hci_ver, resp->hci_rev,
1720 resp->lmp_ver, resp->lmp_subver);
1722 lmp_subver = le16_to_cpu(resp->lmp_subver);
1725 /* Match a set of subver values that correspond to stock firmware,
1726 * which is not compatible with standard btusb.
1727 * If matched, upload an alternative firmware that does conform to
1728 * standard btusb. Once that firmware is uploaded, the subver changes
1729 * to a different value.
1731 switch (lmp_subver) {
1732 case RTL_ROM_LMP_8723A:
1733 case RTL_ROM_LMP_3499:
1734 return btusb_setup_rtl8723a(hdev);
1735 case RTL_ROM_LMP_8723B:
1736 return btusb_setup_rtl8723b(hdev, lmp_subver,
1737 "rtl_bt/rtl8723b_fw.bin");
1738 case RTL_ROM_LMP_8821A:
1739 return btusb_setup_rtl8723b(hdev, lmp_subver,
1740 "rtl_bt/rtl8821a_fw.bin");
1741 case RTL_ROM_LMP_8761A:
1742 return btusb_setup_rtl8723b(hdev, lmp_subver,
1743 "rtl_bt/rtl8761a_fw.bin");
1745 BT_INFO("rtl: assuming no firmware upload needed.");
1750 static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev,
1751 struct intel_version *ver)
1753 const struct firmware *fw;
1757 snprintf(fwname, sizeof(fwname),
1758 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq",
1759 ver->hw_platform, ver->hw_variant, ver->hw_revision,
1760 ver->fw_variant, ver->fw_revision, ver->fw_build_num,
1761 ver->fw_build_ww, ver->fw_build_yy);
1763 ret = request_firmware(&fw, fwname, &hdev->dev);
1765 if (ret == -EINVAL) {
1766 BT_ERR("%s Intel firmware file request failed (%d)",
1771 BT_ERR("%s failed to open Intel firmware file: %s(%d)",
1772 hdev->name, fwname, ret);
1774 /* If the correct firmware patch file is not found, use the
1775 * default firmware patch file instead
1777 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq",
1778 ver->hw_platform, ver->hw_variant);
1779 if (request_firmware(&fw, fwname, &hdev->dev) < 0) {
1780 BT_ERR("%s failed to open default Intel fw file: %s",
1781 hdev->name, fwname);
1786 BT_INFO("%s: Intel Bluetooth firmware file: %s", hdev->name, fwname);
1791 static int btusb_setup_intel_patching(struct hci_dev *hdev,
1792 const struct firmware *fw,
1793 const u8 **fw_ptr, int *disable_patch)
1795 struct sk_buff *skb;
1796 struct hci_command_hdr *cmd;
1797 const u8 *cmd_param;
1798 struct hci_event_hdr *evt = NULL;
1799 const u8 *evt_param = NULL;
1800 int remain = fw->size - (*fw_ptr - fw->data);
1802 /* The first byte indicates the types of the patch command or event.
1803 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes
1804 * in the current firmware buffer doesn't start with 0x01 or
1805 * the size of remain buffer is smaller than HCI command header,
1806 * the firmware file is corrupted and it should stop the patching
1809 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) {
1810 BT_ERR("%s Intel fw corrupted: invalid cmd read", hdev->name);
1816 cmd = (struct hci_command_hdr *)(*fw_ptr);
1817 *fw_ptr += sizeof(*cmd);
1818 remain -= sizeof(*cmd);
1820 /* Ensure that the remain firmware data is long enough than the length
1821 * of command parameter. If not, the firmware file is corrupted.
1823 if (remain < cmd->plen) {
1824 BT_ERR("%s Intel fw corrupted: invalid cmd len", hdev->name);
1828 /* If there is a command that loads a patch in the firmware
1829 * file, then enable the patch upon success, otherwise just
1830 * disable the manufacturer mode, for example patch activation
1831 * is not required when the default firmware patch file is used
1832 * because there are no patch data to load.
1834 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e)
1837 cmd_param = *fw_ptr;
1838 *fw_ptr += cmd->plen;
1839 remain -= cmd->plen;
1841 /* This reads the expected events when the above command is sent to the
1842 * device. Some vendor commands expects more than one events, for
1843 * example command status event followed by vendor specific event.
1844 * For this case, it only keeps the last expected event. so the command
1845 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of
1846 * last expected event.
1848 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) {
1852 evt = (struct hci_event_hdr *)(*fw_ptr);
1853 *fw_ptr += sizeof(*evt);
1854 remain -= sizeof(*evt);
1856 if (remain < evt->plen) {
1857 BT_ERR("%s Intel fw corrupted: invalid evt len",
1862 evt_param = *fw_ptr;
1863 *fw_ptr += evt->plen;
1864 remain -= evt->plen;
1867 /* Every HCI commands in the firmware file has its correspond event.
1868 * If event is not found or remain is smaller than zero, the firmware
1869 * file is corrupted.
1871 if (!evt || !evt_param || remain < 0) {
1872 BT_ERR("%s Intel fw corrupted: invalid evt read", hdev->name);
1876 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen,
1877 cmd_param, evt->evt, HCI_INIT_TIMEOUT);
1879 BT_ERR("%s sending Intel patch command (0x%4.4x) failed (%ld)",
1880 hdev->name, cmd->opcode, PTR_ERR(skb));
1881 return PTR_ERR(skb);
1884 /* It ensures that the returned event matches the event data read from
1885 * the firmware file. At fist, it checks the length and then
1886 * the contents of the event.
1888 if (skb->len != evt->plen) {
1889 BT_ERR("%s mismatch event length (opcode 0x%4.4x)", hdev->name,
1890 le16_to_cpu(cmd->opcode));
1895 if (memcmp(skb->data, evt_param, evt->plen)) {
1896 BT_ERR("%s mismatch event parameter (opcode 0x%4.4x)",
1897 hdev->name, le16_to_cpu(cmd->opcode));
1906 static int btusb_setup_intel(struct hci_dev *hdev)
1908 struct sk_buff *skb;
1909 const struct firmware *fw;
1912 struct intel_version *ver;
1914 const u8 mfg_enable[] = { 0x01, 0x00 };
1915 const u8 mfg_disable[] = { 0x00, 0x00 };
1916 const u8 mfg_reset_deactivate[] = { 0x00, 0x01 };
1917 const u8 mfg_reset_activate[] = { 0x00, 0x02 };
1919 BT_DBG("%s", hdev->name);
1921 /* The controller has a bug with the first HCI command sent to it
1922 * returning number of completed commands as zero. This would stall the
1923 * command processing in the Bluetooth core.
1925 * As a workaround, send HCI Reset command first which will reset the
1926 * number of completed commands and allow normal command processing
1929 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1931 BT_ERR("%s sending initial HCI reset command failed (%ld)",
1932 hdev->name, PTR_ERR(skb));
1933 return PTR_ERR(skb);
1937 /* Read Intel specific controller version first to allow selection of
1938 * which firmware file to load.
1940 * The returned information are hardware variant and revision plus
1941 * firmware variant, revision and build number.
1943 skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT);
1945 BT_ERR("%s reading Intel fw version command failed (%ld)",
1946 hdev->name, PTR_ERR(skb));
1947 return PTR_ERR(skb);
1950 if (skb->len != sizeof(*ver)) {
1951 BT_ERR("%s Intel version event length mismatch", hdev->name);
1956 ver = (struct intel_version *)skb->data;
1958 BT_ERR("%s Intel fw version event failed (%02x)", hdev->name,
1961 return -bt_to_errno(ver->status);
1964 BT_INFO("%s: read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
1965 hdev->name, ver->hw_platform, ver->hw_variant,
1966 ver->hw_revision, ver->fw_variant, ver->fw_revision,
1967 ver->fw_build_num, ver->fw_build_ww, ver->fw_build_yy,
1970 /* fw_patch_num indicates the version of patch the device currently
1971 * have. If there is no patch data in the device, it is always 0x00.
1972 * So, if it is other than 0x00, no need to patch the deivce again.
1974 if (ver->fw_patch_num) {
1975 BT_INFO("%s: Intel device is already patched. patch num: %02x",
1976 hdev->name, ver->fw_patch_num);
1978 btintel_check_bdaddr(hdev);
1982 /* Opens the firmware patch file based on the firmware version read
1983 * from the controller. If it fails to open the matching firmware
1984 * patch file, it tries to open the default firmware patch file.
1985 * If no patch file is found, allow the device to operate without
1988 fw = btusb_setup_intel_get_fw(hdev, ver);
1991 btintel_check_bdaddr(hdev);
1998 /* This Intel specific command enables the manufacturer mode of the
2001 * Only while this mode is enabled, the driver can download the
2002 * firmware patch data and configuration parameters.
2004 skb = __hci_cmd_sync(hdev, 0xfc11, 2, mfg_enable, HCI_INIT_TIMEOUT);
2006 BT_ERR("%s entering Intel manufacturer mode failed (%ld)",
2007 hdev->name, PTR_ERR(skb));
2008 release_firmware(fw);
2009 return PTR_ERR(skb);
2013 u8 evt_status = skb->data[0];
2015 BT_ERR("%s enable Intel manufacturer mode event failed (%02x)",
2016 hdev->name, evt_status);
2018 release_firmware(fw);
2019 return -bt_to_errno(evt_status);
2025 /* The firmware data file consists of list of Intel specific HCI
2026 * commands and its expected events. The first byte indicates the
2027 * type of the message, either HCI command or HCI event.
2029 * It reads the command and its expected event from the firmware file,
2030 * and send to the controller. Once __hci_cmd_sync_ev() returns,
2031 * the returned event is compared with the event read from the firmware
2032 * file and it will continue until all the messages are downloaded to
2035 * Once the firmware patching is completed successfully,
2036 * the manufacturer mode is disabled with reset and activating the
2039 * If the firmware patching fails, the manufacturer mode is
2040 * disabled with reset and deactivating the patch.
2042 * If the default patch file is used, no reset is done when disabling
2045 while (fw->size > fw_ptr - fw->data) {
2048 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr,
2051 goto exit_mfg_deactivate;
2054 release_firmware(fw);
2057 goto exit_mfg_disable;
2059 /* Patching completed successfully and disable the manufacturer mode
2060 * with reset and activate the downloaded firmware patches.
2062 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_activate),
2063 mfg_reset_activate, HCI_INIT_TIMEOUT);
2065 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
2066 hdev->name, PTR_ERR(skb));
2067 return PTR_ERR(skb);
2071 BT_INFO("%s: Intel Bluetooth firmware patch completed and activated",
2074 btintel_check_bdaddr(hdev);
2078 /* Disable the manufacturer mode without reset */
2079 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_disable), mfg_disable,
2082 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
2083 hdev->name, PTR_ERR(skb));
2084 return PTR_ERR(skb);
2088 BT_INFO("%s: Intel Bluetooth firmware patch completed", hdev->name);
2090 btintel_check_bdaddr(hdev);
2093 exit_mfg_deactivate:
2094 release_firmware(fw);
2096 /* Patching failed. Disable the manufacturer mode with reset and
2097 * deactivate the downloaded firmware patches.
2099 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_deactivate),
2100 mfg_reset_deactivate, HCI_INIT_TIMEOUT);
2102 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
2103 hdev->name, PTR_ERR(skb));
2104 return PTR_ERR(skb);
2108 BT_INFO("%s: Intel Bluetooth firmware patch completed and deactivated",
2111 btintel_check_bdaddr(hdev);
2115 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
2117 struct sk_buff *skb;
2118 struct hci_event_hdr *hdr;
2119 struct hci_ev_cmd_complete *evt;
2121 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_ATOMIC);
2125 hdr = (struct hci_event_hdr *)skb_put(skb, sizeof(*hdr));
2126 hdr->evt = HCI_EV_CMD_COMPLETE;
2127 hdr->plen = sizeof(*evt) + 1;
2129 evt = (struct hci_ev_cmd_complete *)skb_put(skb, sizeof(*evt));
2131 evt->opcode = cpu_to_le16(opcode);
2133 *skb_put(skb, 1) = 0x00;
2135 bt_cb(skb)->pkt_type = HCI_EVENT_PKT;
2137 return hci_recv_frame(hdev, skb);
2140 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
2143 /* When the device is in bootloader mode, then it can send
2144 * events via the bulk endpoint. These events are treated the
2145 * same way as the ones received from the interrupt endpoint.
2147 if (test_bit(BTUSB_BOOTLOADER, &data->flags))
2148 return btusb_recv_intr(data, buffer, count);
2150 return btusb_recv_bulk(data, buffer, count);
2153 static void btusb_intel_bootup(struct btusb_data *data, const void *ptr,
2156 const struct intel_bootup *evt = ptr;
2158 if (len != sizeof(*evt))
2161 if (test_and_clear_bit(BTUSB_BOOTING, &data->flags)) {
2162 smp_mb__after_atomic();
2163 wake_up_bit(&data->flags, BTUSB_BOOTING);
2167 static void btusb_intel_secure_send_result(struct btusb_data *data,
2168 const void *ptr, unsigned int len)
2170 const struct intel_secure_send_result *evt = ptr;
2172 if (len != sizeof(*evt))
2176 set_bit(BTUSB_FIRMWARE_FAILED, &data->flags);
2178 if (test_and_clear_bit(BTUSB_DOWNLOADING, &data->flags) &&
2179 test_bit(BTUSB_FIRMWARE_LOADED, &data->flags)) {
2180 smp_mb__after_atomic();
2181 wake_up_bit(&data->flags, BTUSB_DOWNLOADING);
2185 static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb)
2187 struct btusb_data *data = hci_get_drvdata(hdev);
2189 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
2190 struct hci_event_hdr *hdr = (void *)skb->data;
2192 if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff &&
2194 const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1;
2195 unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1;
2197 switch (skb->data[2]) {
2199 /* When switching to the operational firmware
2200 * the device sends a vendor specific event
2201 * indicating that the bootup completed.
2203 btusb_intel_bootup(data, ptr, len);
2206 /* When the firmware loading completes the
2207 * device sends out a vendor specific event
2208 * indicating the result of the firmware
2211 btusb_intel_secure_send_result(data, ptr, len);
2217 return hci_recv_frame(hdev, skb);
2220 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
2222 struct btusb_data *data = hci_get_drvdata(hdev);
2225 BT_DBG("%s", hdev->name);
2227 if (!test_bit(HCI_RUNNING, &hdev->flags))
2230 switch (bt_cb(skb)->pkt_type) {
2231 case HCI_COMMAND_PKT:
2232 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
2233 struct hci_command_hdr *cmd = (void *)skb->data;
2234 __u16 opcode = le16_to_cpu(cmd->opcode);
2236 /* When in bootloader mode and the command 0xfc09
2237 * is received, it needs to be send down the
2238 * bulk endpoint. So allocate a bulk URB instead.
2240 if (opcode == 0xfc09)
2241 urb = alloc_bulk_urb(hdev, skb);
2243 urb = alloc_ctrl_urb(hdev, skb);
2245 /* When the 0xfc01 command is issued to boot into
2246 * the operational firmware, it will actually not
2247 * send a command complete event. To keep the flow
2248 * control working inject that event here.
2250 if (opcode == 0xfc01)
2251 inject_cmd_complete(hdev, opcode);
2253 urb = alloc_ctrl_urb(hdev, skb);
2256 return PTR_ERR(urb);
2258 hdev->stat.cmd_tx++;
2259 return submit_or_queue_tx_urb(hdev, urb);
2261 case HCI_ACLDATA_PKT:
2262 urb = alloc_bulk_urb(hdev, skb);
2264 return PTR_ERR(urb);
2266 hdev->stat.acl_tx++;
2267 return submit_or_queue_tx_urb(hdev, urb);
2269 case HCI_SCODATA_PKT:
2270 if (hci_conn_num(hdev, SCO_LINK) < 1)
2273 urb = alloc_isoc_urb(hdev, skb);
2275 return PTR_ERR(urb);
2277 hdev->stat.sco_tx++;
2278 return submit_tx_urb(hdev, urb);
2284 static int btusb_intel_secure_send(struct hci_dev *hdev, u8 fragment_type,
2285 u32 plen, const void *param)
2288 struct sk_buff *skb;
2289 u8 cmd_param[253], fragment_len = (plen > 252) ? 252 : plen;
2291 cmd_param[0] = fragment_type;
2292 memcpy(cmd_param + 1, param, fragment_len);
2294 skb = __hci_cmd_sync(hdev, 0xfc09, fragment_len + 1,
2295 cmd_param, HCI_INIT_TIMEOUT);
2297 return PTR_ERR(skb);
2301 plen -= fragment_len;
2302 param += fragment_len;
2308 static void btusb_intel_version_info(struct hci_dev *hdev,
2309 struct intel_version *ver)
2311 const char *variant;
2313 switch (ver->fw_variant) {
2315 variant = "Bootloader";
2318 variant = "Firmware";
2324 BT_INFO("%s: %s revision %u.%u build %u week %u %u", hdev->name,
2325 variant, ver->fw_revision >> 4, ver->fw_revision & 0x0f,
2326 ver->fw_build_num, ver->fw_build_ww, 2000 + ver->fw_build_yy);
2329 static int btusb_setup_intel_new(struct hci_dev *hdev)
2331 static const u8 reset_param[] = { 0x00, 0x01, 0x00, 0x01,
2332 0x00, 0x08, 0x04, 0x00 };
2333 struct btusb_data *data = hci_get_drvdata(hdev);
2334 struct sk_buff *skb;
2335 struct intel_version *ver;
2336 struct intel_boot_params *params;
2337 const struct firmware *fw;
2341 ktime_t calltime, delta, rettime;
2342 unsigned long long duration;
2345 BT_DBG("%s", hdev->name);
2347 calltime = ktime_get();
2349 /* Read the Intel version information to determine if the device
2350 * is in bootloader mode or if it already has operational firmware
2353 skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT);
2355 BT_ERR("%s: Reading Intel version information failed (%ld)",
2356 hdev->name, PTR_ERR(skb));
2357 return PTR_ERR(skb);
2360 if (skb->len != sizeof(*ver)) {
2361 BT_ERR("%s: Intel version event size mismatch", hdev->name);
2366 ver = (struct intel_version *)skb->data;
2368 BT_ERR("%s: Intel version command failure (%02x)",
2369 hdev->name, ver->status);
2370 err = -bt_to_errno(ver->status);
2375 /* The hardware platform number has a fixed value of 0x37 and
2376 * for now only accept this single value.
2378 if (ver->hw_platform != 0x37) {
2379 BT_ERR("%s: Unsupported Intel hardware platform (%u)",
2380 hdev->name, ver->hw_platform);
2385 /* At the moment only the hardware variant iBT 3.0 (LnP/SfP) is
2386 * supported by this firmware loading method. This check has been
2387 * put in place to ensure correct forward compatibility options
2388 * when newer hardware variants come along.
2390 if (ver->hw_variant != 0x0b) {
2391 BT_ERR("%s: Unsupported Intel hardware variant (%u)",
2392 hdev->name, ver->hw_variant);
2397 btusb_intel_version_info(hdev, ver);
2399 /* The firmware variant determines if the device is in bootloader
2400 * mode or is running operational firmware. The value 0x06 identifies
2401 * the bootloader and the value 0x23 identifies the operational
2404 * When the operational firmware is already present, then only
2405 * the check for valid Bluetooth device address is needed. This
2406 * determines if the device will be added as configured or
2407 * unconfigured controller.
2409 * It is not possible to use the Secure Boot Parameters in this
2410 * case since that command is only available in bootloader mode.
2412 if (ver->fw_variant == 0x23) {
2414 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2415 btintel_check_bdaddr(hdev);
2419 /* If the device is not in bootloader mode, then the only possible
2420 * choice is to return an error and abort the device initialization.
2422 if (ver->fw_variant != 0x06) {
2423 BT_ERR("%s: Unsupported Intel firmware variant (%u)",
2424 hdev->name, ver->fw_variant);
2431 /* Read the secure boot parameters to identify the operating
2432 * details of the bootloader.
2434 skb = __hci_cmd_sync(hdev, 0xfc0d, 0, NULL, HCI_INIT_TIMEOUT);
2436 BT_ERR("%s: Reading Intel boot parameters failed (%ld)",
2437 hdev->name, PTR_ERR(skb));
2438 return PTR_ERR(skb);
2441 if (skb->len != sizeof(*params)) {
2442 BT_ERR("%s: Intel boot parameters size mismatch", hdev->name);
2447 params = (struct intel_boot_params *)skb->data;
2448 if (params->status) {
2449 BT_ERR("%s: Intel boot parameters command failure (%02x)",
2450 hdev->name, params->status);
2451 err = -bt_to_errno(params->status);
2456 BT_INFO("%s: Device revision is %u", hdev->name,
2457 le16_to_cpu(params->dev_revid));
2459 BT_INFO("%s: Secure boot is %s", hdev->name,
2460 params->secure_boot ? "enabled" : "disabled");
2462 BT_INFO("%s: Minimum firmware build %u week %u %u", hdev->name,
2463 params->min_fw_build_nn, params->min_fw_build_cw,
2464 2000 + params->min_fw_build_yy);
2466 /* It is required that every single firmware fragment is acknowledged
2467 * with a command complete event. If the boot parameters indicate
2468 * that this bootloader does not send them, then abort the setup.
2470 if (params->limited_cce != 0x00) {
2471 BT_ERR("%s: Unsupported Intel firmware loading method (%u)",
2472 hdev->name, params->limited_cce);
2477 /* If the OTP has no valid Bluetooth device address, then there will
2478 * also be no valid address for the operational firmware.
2480 if (!bacmp(¶ms->otp_bdaddr, BDADDR_ANY)) {
2481 BT_INFO("%s: No device address configured", hdev->name);
2482 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
2485 /* With this Intel bootloader only the hardware variant and device
2486 * revision information are used to select the right firmware.
2488 * Currently this bootloader support is limited to hardware variant
2489 * iBT 3.0 (LnP/SfP) which is identified by the value 11 (0x0b).
2491 snprintf(fwname, sizeof(fwname), "intel/ibt-11-%u.sfi",
2492 le16_to_cpu(params->dev_revid));
2494 err = request_firmware(&fw, fwname, &hdev->dev);
2496 BT_ERR("%s: Failed to load Intel firmware file (%d)",
2502 BT_INFO("%s: Found device firmware: %s", hdev->name, fwname);
2506 if (fw->size < 644) {
2507 BT_ERR("%s: Invalid size of firmware file (%zu)",
2508 hdev->name, fw->size);
2513 set_bit(BTUSB_DOWNLOADING, &data->flags);
2515 /* Start the firmware download transaction with the Init fragment
2516 * represented by the 128 bytes of CSS header.
2518 err = btusb_intel_secure_send(hdev, 0x00, 128, fw->data);
2520 BT_ERR("%s: Failed to send firmware header (%d)",
2525 /* Send the 256 bytes of public key information from the firmware
2526 * as the PKey fragment.
2528 err = btusb_intel_secure_send(hdev, 0x03, 256, fw->data + 128);
2530 BT_ERR("%s: Failed to send firmware public key (%d)",
2535 /* Send the 256 bytes of signature information from the firmware
2536 * as the Sign fragment.
2538 err = btusb_intel_secure_send(hdev, 0x02, 256, fw->data + 388);
2540 BT_ERR("%s: Failed to send firmware signature (%d)",
2545 fw_ptr = fw->data + 644;
2548 while (fw_ptr - fw->data < fw->size) {
2549 struct hci_command_hdr *cmd = (void *)(fw_ptr + frag_len);
2551 frag_len += sizeof(*cmd) + cmd->plen;
2553 /* The paramter length of the secure send command requires
2554 * a 4 byte alignment. It happens so that the firmware file
2555 * contains proper Intel_NOP commands to align the fragments
2558 * Send set of commands with 4 byte alignment from the
2559 * firmware data buffer as a single Data fragement.
2561 if (!(frag_len % 4)) {
2562 err = btusb_intel_secure_send(hdev, 0x01, frag_len,
2565 BT_ERR("%s: Failed to send firmware data (%d)",
2575 set_bit(BTUSB_FIRMWARE_LOADED, &data->flags);
2577 BT_INFO("%s: Waiting for firmware download to complete", hdev->name);
2579 /* Before switching the device into operational mode and with that
2580 * booting the loaded firmware, wait for the bootloader notification
2581 * that all fragments have been successfully received.
2583 * When the event processing receives the notification, then the
2584 * BTUSB_DOWNLOADING flag will be cleared.
2586 * The firmware loading should not take longer than 5 seconds
2587 * and thus just timeout if that happens and fail the setup
2590 err = wait_on_bit_timeout(&data->flags, BTUSB_DOWNLOADING,
2592 msecs_to_jiffies(5000));
2594 BT_ERR("%s: Firmware loading interrupted", hdev->name);
2600 BT_ERR("%s: Firmware loading timeout", hdev->name);
2605 if (test_bit(BTUSB_FIRMWARE_FAILED, &data->flags)) {
2606 BT_ERR("%s: Firmware loading failed", hdev->name);
2611 rettime = ktime_get();
2612 delta = ktime_sub(rettime, calltime);
2613 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2615 BT_INFO("%s: Firmware loaded in %llu usecs", hdev->name, duration);
2618 release_firmware(fw);
2623 calltime = ktime_get();
2625 set_bit(BTUSB_BOOTING, &data->flags);
2627 skb = __hci_cmd_sync(hdev, 0xfc01, sizeof(reset_param), reset_param,
2630 return PTR_ERR(skb);
2634 /* The bootloader will not indicate when the device is ready. This
2635 * is done by the operational firmware sending bootup notification.
2637 * Booting into operational firmware should not take longer than
2638 * 1 second. However if that happens, then just fail the setup
2639 * since something went wrong.
2641 BT_INFO("%s: Waiting for device to boot", hdev->name);
2643 err = wait_on_bit_timeout(&data->flags, BTUSB_BOOTING,
2645 msecs_to_jiffies(1000));
2648 BT_ERR("%s: Device boot interrupted", hdev->name);
2653 BT_ERR("%s: Device boot timeout", hdev->name);
2657 rettime = ktime_get();
2658 delta = ktime_sub(rettime, calltime);
2659 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2661 BT_INFO("%s: Device booted in %llu usecs", hdev->name, duration);
2663 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2668 static void btusb_hw_error_intel(struct hci_dev *hdev, u8 code)
2670 struct sk_buff *skb;
2673 BT_ERR("%s: Hardware error 0x%2.2x", hdev->name, code);
2675 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
2677 BT_ERR("%s: Reset after hardware error failed (%ld)",
2678 hdev->name, PTR_ERR(skb));
2683 skb = __hci_cmd_sync(hdev, 0xfc22, 1, &type, HCI_INIT_TIMEOUT);
2685 BT_ERR("%s: Retrieving Intel exception info failed (%ld)",
2686 hdev->name, PTR_ERR(skb));
2690 if (skb->len != 13) {
2691 BT_ERR("%s: Exception info size mismatch", hdev->name);
2696 if (skb->data[0] != 0x00) {
2697 BT_ERR("%s: Exception info command failure (%02x)",
2698 hdev->name, skb->data[0]);
2703 BT_ERR("%s: Exception info %s", hdev->name, (char *)(skb->data + 1));
2708 static int btusb_shutdown_intel(struct hci_dev *hdev)
2710 struct sk_buff *skb;
2713 /* Some platforms have an issue with BT LED when the interface is
2714 * down or BT radio is turned off, which takes 5 seconds to BT LED
2715 * goes off. This command turns off the BT LED immediately.
2717 skb = __hci_cmd_sync(hdev, 0xfc3f, 0, NULL, HCI_INIT_TIMEOUT);
2720 BT_ERR("%s: turning off Intel device LED failed (%ld)",
2729 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
2730 const bdaddr_t *bdaddr)
2732 struct sk_buff *skb;
2737 buf[1] = sizeof(bdaddr_t);
2738 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
2740 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2743 BT_ERR("%s: changing Marvell device address failed (%ld)",
2752 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
2753 const bdaddr_t *bdaddr)
2755 struct sk_buff *skb;
2762 buf[3] = sizeof(bdaddr_t);
2763 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
2765 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2768 BT_ERR("%s: Change address command failed (%ld)",
2777 #define QCA_DFU_PACKET_LEN 4096
2779 #define QCA_GET_TARGET_VERSION 0x09
2780 #define QCA_CHECK_STATUS 0x05
2781 #define QCA_DFU_DOWNLOAD 0x01
2783 #define QCA_SYSCFG_UPDATED 0x40
2784 #define QCA_PATCH_UPDATED 0x80
2785 #define QCA_DFU_TIMEOUT 3000
2787 struct qca_version {
2789 __le32 patch_version;
2795 struct qca_rampatch_version {
2797 __le16 patch_version;
2800 struct qca_device_info {
2802 u8 rampatch_hdr; /* length of header in rampatch */
2803 u8 nvm_hdr; /* length of header in NVM */
2804 u8 ver_offset; /* offset of version structure in rampatch */
2807 static const struct qca_device_info qca_devices_table[] = {
2808 { 0x00000100, 20, 4, 10 }, /* Rome 1.0 */
2809 { 0x00000101, 20, 4, 10 }, /* Rome 1.1 */
2810 { 0x00000201, 28, 4, 18 }, /* Rome 2.1 */
2811 { 0x00000300, 28, 4, 18 }, /* Rome 3.0 */
2812 { 0x00000302, 28, 4, 18 }, /* Rome 3.2 */
2815 static int btusb_qca_send_vendor_req(struct hci_dev *hdev, u8 request,
2816 void *data, u16 size)
2818 struct btusb_data *btdata = hci_get_drvdata(hdev);
2819 struct usb_device *udev = btdata->udev;
2823 buf = kmalloc(size, GFP_KERNEL);
2827 /* Found some of USB hosts have IOT issues with ours so that we should
2828 * not wait until HCI layer is ready.
2830 pipe = usb_rcvctrlpipe(udev, 0);
2831 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
2832 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
2834 BT_ERR("%s: Failed to access otp area (%d)", hdev->name, err);
2838 memcpy(data, buf, size);
2846 static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
2847 const struct firmware *firmware,
2850 struct btusb_data *btdata = hci_get_drvdata(hdev);
2851 struct usb_device *udev = btdata->udev;
2852 size_t count, size, sent = 0;
2856 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
2860 count = firmware->size;
2862 size = min_t(size_t, count, hdr_size);
2863 memcpy(buf, firmware->data, size);
2865 /* USB patches should go down to controller through USB path
2866 * because binary format fits to go down through USB channel.
2867 * USB control path is for patching headers and USB bulk is for
2870 pipe = usb_sndctrlpipe(udev, 0);
2871 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
2872 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
2874 BT_ERR("%s: Failed to send headers (%d)", hdev->name, err);
2882 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
2884 memcpy(buf, firmware->data + sent, size);
2886 pipe = usb_sndbulkpipe(udev, 0x02);
2887 err = usb_bulk_msg(udev, pipe, buf, size, &len,
2890 BT_ERR("%s: Failed to send body at %zd of %zd (%d)",
2891 hdev->name, sent, firmware->size, err);
2896 BT_ERR("%s: Failed to get bulk buffer", hdev->name);
2910 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
2911 struct qca_version *ver,
2912 const struct qca_device_info *info)
2914 struct qca_rampatch_version *rver;
2915 const struct firmware *fw;
2916 u32 ver_rom, ver_patch;
2917 u16 rver_rom, rver_patch;
2921 ver_rom = le32_to_cpu(ver->rom_version);
2922 ver_patch = le32_to_cpu(ver->patch_version);
2924 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom);
2926 err = request_firmware(&fw, fwname, &hdev->dev);
2928 BT_ERR("%s: failed to request rampatch file: %s (%d)",
2929 hdev->name, fwname, err);
2933 BT_INFO("%s: using rampatch file: %s", hdev->name, fwname);
2935 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
2936 rver_rom = le16_to_cpu(rver->rom_version);
2937 rver_patch = le16_to_cpu(rver->patch_version);
2939 BT_INFO("%s: QCA: patch rome 0x%x build 0x%x, firmware rome 0x%x "
2940 "build 0x%x", hdev->name, rver_rom, rver_patch, ver_rom,
2943 if (rver_rom != ver_rom || rver_patch <= ver_patch) {
2944 BT_ERR("%s: rampatch file version did not match with firmware",
2950 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
2953 release_firmware(fw);
2958 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
2959 struct qca_version *ver,
2960 const struct qca_device_info *info)
2962 const struct firmware *fw;
2966 snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin",
2967 le32_to_cpu(ver->rom_version));
2969 err = request_firmware(&fw, fwname, &hdev->dev);
2971 BT_ERR("%s: failed to request NVM file: %s (%d)",
2972 hdev->name, fwname, err);
2976 BT_INFO("%s: using NVM file: %s", hdev->name, fwname);
2978 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
2980 release_firmware(fw);
2985 static int btusb_setup_qca(struct hci_dev *hdev)
2987 const struct qca_device_info *info = NULL;
2988 struct qca_version ver;
2993 err = btusb_qca_send_vendor_req(hdev, QCA_GET_TARGET_VERSION, &ver,
2998 ver_rom = le32_to_cpu(ver.rom_version);
2999 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
3000 if (ver_rom == qca_devices_table[i].rom_version)
3001 info = &qca_devices_table[i];
3004 BT_ERR("%s: don't support firmware rome 0x%x", hdev->name,
3009 err = btusb_qca_send_vendor_req(hdev, QCA_CHECK_STATUS, &status,
3014 if (!(status & QCA_PATCH_UPDATED)) {
3015 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
3020 if (!(status & QCA_SYSCFG_UPDATED)) {
3021 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
3029 static int btusb_probe(struct usb_interface *intf,
3030 const struct usb_device_id *id)
3032 struct usb_endpoint_descriptor *ep_desc;
3033 struct btusb_data *data;
3034 struct hci_dev *hdev;
3037 BT_DBG("intf %p id %p", intf, id);
3039 /* interface numbers are hardcoded in the spec */
3040 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
3043 if (!id->driver_info) {
3044 const struct usb_device_id *match;
3046 match = usb_match_id(intf, blacklist_table);
3051 if (id->driver_info == BTUSB_IGNORE)
3054 if (id->driver_info & BTUSB_ATH3012) {
3055 struct usb_device *udev = interface_to_usbdev(intf);
3057 /* Old firmware would otherwise let ath3k driver load
3058 * patch and sysconfig files */
3059 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
3063 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
3067 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
3068 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
3070 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
3071 data->intr_ep = ep_desc;
3075 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
3076 data->bulk_tx_ep = ep_desc;
3080 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
3081 data->bulk_rx_ep = ep_desc;
3086 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
3089 if (id->driver_info & BTUSB_AMP) {
3090 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
3091 data->cmdreq = 0x2b;
3093 data->cmdreq_type = USB_TYPE_CLASS;
3094 data->cmdreq = 0x00;
3097 data->udev = interface_to_usbdev(intf);
3100 INIT_WORK(&data->work, btusb_work);
3101 INIT_WORK(&data->waker, btusb_waker);
3102 init_usb_anchor(&data->deferred);
3103 init_usb_anchor(&data->tx_anchor);
3104 spin_lock_init(&data->txlock);
3106 init_usb_anchor(&data->intr_anchor);
3107 init_usb_anchor(&data->bulk_anchor);
3108 init_usb_anchor(&data->isoc_anchor);
3109 spin_lock_init(&data->rxlock);
3111 if (id->driver_info & BTUSB_INTEL_NEW) {
3112 data->recv_event = btusb_recv_event_intel;
3113 data->recv_bulk = btusb_recv_bulk_intel;
3114 set_bit(BTUSB_BOOTLOADER, &data->flags);
3116 data->recv_event = hci_recv_frame;
3117 data->recv_bulk = btusb_recv_bulk;
3120 hdev = hci_alloc_dev();
3124 hdev->bus = HCI_USB;
3125 hci_set_drvdata(hdev, data);
3127 if (id->driver_info & BTUSB_AMP)
3128 hdev->dev_type = HCI_AMP;
3130 hdev->dev_type = HCI_BREDR;
3134 SET_HCIDEV_DEV(hdev, &intf->dev);
3136 hdev->open = btusb_open;
3137 hdev->close = btusb_close;
3138 hdev->flush = btusb_flush;
3139 hdev->send = btusb_send_frame;
3140 hdev->notify = btusb_notify;
3142 if (id->driver_info & BTUSB_BCM92035)
3143 hdev->setup = btusb_setup_bcm92035;
3145 #ifdef CONFIG_BT_HCIBTUSB_BCM
3146 if (id->driver_info & BTUSB_BCM_PATCHRAM) {
3147 hdev->setup = btbcm_setup_patchram;
3148 hdev->set_bdaddr = btbcm_set_bdaddr;
3151 if (id->driver_info & BTUSB_BCM_APPLE)
3152 hdev->setup = btbcm_setup_apple;
3155 if (id->driver_info & BTUSB_INTEL) {
3156 hdev->setup = btusb_setup_intel;
3157 hdev->shutdown = btusb_shutdown_intel;
3158 hdev->set_bdaddr = btintel_set_bdaddr;
3159 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
3160 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3163 if (id->driver_info & BTUSB_INTEL_NEW) {
3164 hdev->send = btusb_send_frame_intel;
3165 hdev->setup = btusb_setup_intel_new;
3166 hdev->hw_error = btusb_hw_error_intel;
3167 hdev->set_bdaddr = btintel_set_bdaddr;
3168 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
3171 if (id->driver_info & BTUSB_MARVELL)
3172 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
3174 if (id->driver_info & BTUSB_SWAVE) {
3175 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
3176 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
3179 if (id->driver_info & BTUSB_INTEL_BOOT)
3180 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
3182 if (id->driver_info & BTUSB_ATH3012) {
3183 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
3184 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3185 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
3188 if (id->driver_info & BTUSB_QCA_ROME) {
3189 data->setup_on_usb = btusb_setup_qca;
3190 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
3193 if (id->driver_info & BTUSB_REALTEK)
3194 hdev->setup = btusb_setup_realtek;
3196 if (id->driver_info & BTUSB_AMP) {
3197 /* AMP controllers do not support SCO packets */
3200 /* Interface numbers are hardcoded in the specification */
3201 data->isoc = usb_ifnum_to_if(data->udev, 1);
3205 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3207 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
3208 if (!disable_scofix)
3209 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
3212 if (id->driver_info & BTUSB_BROKEN_ISOC)
3215 if (id->driver_info & BTUSB_DIGIANSWER) {
3216 data->cmdreq_type = USB_TYPE_VENDOR;
3217 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3220 if (id->driver_info & BTUSB_CSR) {
3221 struct usb_device *udev = data->udev;
3222 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
3224 /* Old firmware would otherwise execute USB reset */
3225 if (bcdDevice < 0x117)
3226 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3228 /* Fake CSR devices with broken commands */
3229 if (bcdDevice <= 0x100)
3230 hdev->setup = btusb_setup_csr;
3232 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3235 if (id->driver_info & BTUSB_SNIFFER) {
3236 struct usb_device *udev = data->udev;
3238 /* New sniffer firmware has crippled HCI interface */
3239 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
3240 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
3243 if (id->driver_info & BTUSB_INTEL_BOOT) {
3244 /* A bug in the bootloader causes that interrupt interface is
3245 * only enabled after receiving SetInterface(0, AltSetting=0).
3247 err = usb_set_interface(data->udev, 0, 0);
3249 BT_ERR("failed to set interface 0, alt 0 %d", err);
3256 err = usb_driver_claim_interface(&btusb_driver,
3264 err = hci_register_dev(hdev);
3270 usb_set_intfdata(intf, data);
3275 static void btusb_disconnect(struct usb_interface *intf)
3277 struct btusb_data *data = usb_get_intfdata(intf);
3278 struct hci_dev *hdev;
3280 BT_DBG("intf %p", intf);
3286 usb_set_intfdata(data->intf, NULL);
3289 usb_set_intfdata(data->isoc, NULL);
3291 hci_unregister_dev(hdev);
3293 if (intf == data->isoc)
3294 usb_driver_release_interface(&btusb_driver, data->intf);
3295 else if (data->isoc)
3296 usb_driver_release_interface(&btusb_driver, data->isoc);
3302 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
3304 struct btusb_data *data = usb_get_intfdata(intf);
3306 BT_DBG("intf %p", intf);
3308 if (data->suspend_count++)
3311 spin_lock_irq(&data->txlock);
3312 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
3313 set_bit(BTUSB_SUSPENDING, &data->flags);
3314 spin_unlock_irq(&data->txlock);
3316 spin_unlock_irq(&data->txlock);
3317 data->suspend_count--;
3321 cancel_work_sync(&data->work);
3323 btusb_stop_traffic(data);
3324 usb_kill_anchored_urbs(&data->tx_anchor);
3329 static void play_deferred(struct btusb_data *data)
3334 while ((urb = usb_get_from_anchor(&data->deferred))) {
3335 err = usb_submit_urb(urb, GFP_ATOMIC);
3339 data->tx_in_flight++;
3341 usb_scuttle_anchored_urbs(&data->deferred);
3344 static int btusb_resume(struct usb_interface *intf)
3346 struct btusb_data *data = usb_get_intfdata(intf);
3347 struct hci_dev *hdev = data->hdev;
3350 BT_DBG("intf %p", intf);
3352 if (--data->suspend_count)
3355 if (!test_bit(HCI_RUNNING, &hdev->flags))
3358 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
3359 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
3361 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
3366 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
3367 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
3369 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
3373 btusb_submit_bulk_urb(hdev, GFP_NOIO);
3376 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
3377 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
3378 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
3380 btusb_submit_isoc_urb(hdev, GFP_NOIO);
3383 spin_lock_irq(&data->txlock);
3384 play_deferred(data);
3385 clear_bit(BTUSB_SUSPENDING, &data->flags);
3386 spin_unlock_irq(&data->txlock);
3387 schedule_work(&data->work);
3392 usb_scuttle_anchored_urbs(&data->deferred);
3394 spin_lock_irq(&data->txlock);
3395 clear_bit(BTUSB_SUSPENDING, &data->flags);
3396 spin_unlock_irq(&data->txlock);
3402 static struct usb_driver btusb_driver = {
3404 .probe = btusb_probe,
3405 .disconnect = btusb_disconnect,
3407 .suspend = btusb_suspend,
3408 .resume = btusb_resume,
3410 .id_table = btusb_table,
3411 .supports_autosuspend = 1,
3412 .disable_hub_initiated_lpm = 1,
3415 module_usb_driver(btusb_driver);
3417 module_param(disable_scofix, bool, 0644);
3418 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
3420 module_param(force_scofix, bool, 0644);
3421 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
3423 module_param(reset, bool, 0644);
3424 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
3426 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
3427 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
3428 MODULE_VERSION(VERSION);
3429 MODULE_LICENSE("GPL");