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>
38 static bool disable_scofix;
39 static bool force_scofix;
41 static bool reset = true;
43 static struct usb_driver btusb_driver;
45 #define BTUSB_IGNORE 0x01
46 #define BTUSB_DIGIANSWER 0x02
47 #define BTUSB_CSR 0x04
48 #define BTUSB_SNIFFER 0x08
49 #define BTUSB_BCM92035 0x10
50 #define BTUSB_BROKEN_ISOC 0x20
51 #define BTUSB_WRONG_SCO_MTU 0x40
52 #define BTUSB_ATH3012 0x80
53 #define BTUSB_INTEL 0x100
54 #define BTUSB_INTEL_BOOT 0x200
55 #define BTUSB_BCM_PATCHRAM 0x400
56 #define BTUSB_MARVELL 0x800
57 #define BTUSB_SWAVE 0x1000
58 #define BTUSB_INTEL_NEW 0x2000
59 #define BTUSB_AMP 0x4000
60 #define BTUSB_QCA_ROME 0x8000
61 #define BTUSB_BCM_APPLE 0x10000
62 #define BTUSB_REALTEK 0x20000
64 static const struct usb_device_id btusb_table[] = {
65 /* Generic Bluetooth USB device */
66 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
68 /* Generic Bluetooth AMP device */
69 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP },
71 /* Generic Bluetooth USB interface */
72 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) },
74 /* Apple-specific (Broadcom) devices */
75 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01),
76 .driver_info = BTUSB_BCM_APPLE },
78 /* MediaTek MT76x0E */
79 { USB_DEVICE(0x0e8d, 0x763f) },
81 /* Broadcom SoftSailing reporting vendor specific */
82 { USB_DEVICE(0x0a5c, 0x21e1) },
84 /* Apple MacBookPro 7,1 */
85 { USB_DEVICE(0x05ac, 0x8213) },
88 { USB_DEVICE(0x05ac, 0x8215) },
90 /* Apple MacBookPro6,2 */
91 { USB_DEVICE(0x05ac, 0x8218) },
93 /* Apple MacBookAir3,1, MacBookAir3,2 */
94 { USB_DEVICE(0x05ac, 0x821b) },
96 /* Apple MacBookAir4,1 */
97 { USB_DEVICE(0x05ac, 0x821f) },
99 /* Apple MacBookPro8,2 */
100 { USB_DEVICE(0x05ac, 0x821a) },
102 /* Apple MacMini5,1 */
103 { USB_DEVICE(0x05ac, 0x8281) },
105 /* AVM BlueFRITZ! USB v2.0 */
106 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE },
108 /* Bluetooth Ultraport Module from IBM */
109 { USB_DEVICE(0x04bf, 0x030a) },
111 /* ALPS Modules with non-standard id */
112 { USB_DEVICE(0x044e, 0x3001) },
113 { USB_DEVICE(0x044e, 0x3002) },
115 /* Ericsson with non-standard id */
116 { USB_DEVICE(0x0bdb, 0x1002) },
118 /* Canyon CN-BTU1 with HID interfaces */
119 { USB_DEVICE(0x0c10, 0x0000) },
121 /* Broadcom BCM20702A0 */
122 { USB_DEVICE(0x413c, 0x8197) },
124 /* Broadcom BCM20702B0 (Dynex/Insignia) */
125 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM },
127 /* Foxconn - Hon Hai */
128 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01),
129 .driver_info = BTUSB_BCM_PATCHRAM },
131 /* Lite-On Technology - Broadcom based */
132 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01),
133 .driver_info = BTUSB_BCM_PATCHRAM },
135 /* Broadcom devices with vendor specific id */
136 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01),
137 .driver_info = BTUSB_BCM_PATCHRAM },
139 /* ASUSTek Computer - Broadcom based */
140 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01),
141 .driver_info = BTUSB_BCM_PATCHRAM },
143 /* Belkin F8065bf - Broadcom based */
144 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01),
145 .driver_info = BTUSB_BCM_PATCHRAM },
147 /* IMC Networks - Broadcom based */
148 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01),
149 .driver_info = BTUSB_BCM_PATCHRAM },
151 /* Intel Bluetooth USB Bootloader (RAM module) */
152 { USB_DEVICE(0x8087, 0x0a5a),
153 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
155 { } /* Terminating entry */
158 MODULE_DEVICE_TABLE(usb, btusb_table);
160 static const struct usb_device_id blacklist_table[] = {
161 /* CSR BlueCore devices */
162 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
164 /* Broadcom BCM2033 without firmware */
165 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
167 /* Atheros 3011 with sflash firmware */
168 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
169 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
170 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE },
171 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
172 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
173 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
174 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
176 /* Atheros AR9285 Malbec with sflash firmware */
177 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
179 /* Atheros 3012 with sflash firmware */
180 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
181 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
182 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
183 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
184 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
185 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
186 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
187 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
188 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
189 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
190 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
191 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
192 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
193 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
194 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
195 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
196 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
197 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
198 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
199 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
200 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
201 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
202 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
203 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
204 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
205 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
206 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
207 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
208 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
209 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
210 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
211 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
212 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
213 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
214 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
215 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
216 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
217 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
218 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
219 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
220 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
222 /* Atheros AR5BBU12 with sflash firmware */
223 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
225 /* Atheros AR5BBU12 with sflash firmware */
226 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
227 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
229 /* QCA ROME chipset */
230 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME },
231 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME },
232 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME },
234 /* Broadcom BCM2035 */
235 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
236 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
237 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
239 /* Broadcom BCM2045 */
240 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
241 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
243 /* IBM/Lenovo ThinkPad with Broadcom chip */
244 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
245 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
247 /* HP laptop with Broadcom chip */
248 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
250 /* Dell laptop with Broadcom chip */
251 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
253 /* Dell Wireless 370 and 410 devices */
254 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
255 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
257 /* Belkin F8T012 and F8T013 devices */
258 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
259 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
261 /* Asus WL-BTD202 device */
262 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
264 /* Kensington Bluetooth USB adapter */
265 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
267 /* RTX Telecom based adapters with buggy SCO support */
268 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
269 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
271 /* CONWISE Technology based adapters with buggy SCO support */
272 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
274 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
275 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE },
277 /* Digianswer devices */
278 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
279 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
281 /* CSR BlueCore Bluetooth Sniffer */
282 { USB_DEVICE(0x0a12, 0x0002),
283 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
285 /* Frontline ComProbe Bluetooth Sniffer */
286 { USB_DEVICE(0x16d3, 0x0002),
287 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
289 /* Marvell Bluetooth devices */
290 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
291 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
293 /* Intel Bluetooth devices */
294 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
295 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
296 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL },
297 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_NEW },
299 /* Other Intel Bluetooth devices */
300 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
301 .driver_info = BTUSB_IGNORE },
303 /* Realtek Bluetooth devices */
304 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
305 .driver_info = BTUSB_REALTEK },
307 /* Additional Realtek 8723AE Bluetooth devices */
308 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
309 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
311 /* Additional Realtek 8723BE Bluetooth devices */
312 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
313 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
314 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
315 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
316 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
318 /* Additional Realtek 8821AE Bluetooth devices */
319 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
320 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
321 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
322 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
323 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
325 /* Silicon Wave based devices */
326 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE },
328 { } /* Terminating entry */
331 #define BTUSB_MAX_ISOC_FRAMES 10
333 #define BTUSB_INTR_RUNNING 0
334 #define BTUSB_BULK_RUNNING 1
335 #define BTUSB_ISOC_RUNNING 2
336 #define BTUSB_SUSPENDING 3
337 #define BTUSB_DID_ISO_RESUME 4
338 #define BTUSB_BOOTLOADER 5
339 #define BTUSB_DOWNLOADING 6
340 #define BTUSB_FIRMWARE_LOADED 7
341 #define BTUSB_FIRMWARE_FAILED 8
342 #define BTUSB_BOOTING 9
343 #define BTUSB_RESET_RESUME 10
346 struct hci_dev *hdev;
347 struct usb_device *udev;
348 struct usb_interface *intf;
349 struct usb_interface *isoc;
353 struct work_struct work;
354 struct work_struct waker;
356 struct usb_anchor deferred;
357 struct usb_anchor tx_anchor;
361 struct usb_anchor intr_anchor;
362 struct usb_anchor bulk_anchor;
363 struct usb_anchor isoc_anchor;
366 struct sk_buff *evt_skb;
367 struct sk_buff *acl_skb;
368 struct sk_buff *sco_skb;
370 struct usb_endpoint_descriptor *intr_ep;
371 struct usb_endpoint_descriptor *bulk_tx_ep;
372 struct usb_endpoint_descriptor *bulk_rx_ep;
373 struct usb_endpoint_descriptor *isoc_tx_ep;
374 struct usb_endpoint_descriptor *isoc_rx_ep;
379 unsigned int sco_num;
383 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
384 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
386 int (*setup_on_usb)(struct hci_dev *hdev);
389 static inline void btusb_free_frags(struct btusb_data *data)
393 spin_lock_irqsave(&data->rxlock, flags);
395 kfree_skb(data->evt_skb);
396 data->evt_skb = NULL;
398 kfree_skb(data->acl_skb);
399 data->acl_skb = NULL;
401 kfree_skb(data->sco_skb);
402 data->sco_skb = NULL;
404 spin_unlock_irqrestore(&data->rxlock, flags);
407 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
412 spin_lock(&data->rxlock);
419 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
425 bt_cb(skb)->pkt_type = HCI_EVENT_PKT;
426 bt_cb(skb)->expect = HCI_EVENT_HDR_SIZE;
429 len = min_t(uint, bt_cb(skb)->expect, count);
430 memcpy(skb_put(skb, len), buffer, len);
434 bt_cb(skb)->expect -= len;
436 if (skb->len == HCI_EVENT_HDR_SIZE) {
437 /* Complete event header */
438 bt_cb(skb)->expect = hci_event_hdr(skb)->plen;
440 if (skb_tailroom(skb) < bt_cb(skb)->expect) {
449 if (bt_cb(skb)->expect == 0) {
451 data->recv_event(data->hdev, skb);
457 spin_unlock(&data->rxlock);
462 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
467 spin_lock(&data->rxlock);
474 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
480 bt_cb(skb)->pkt_type = HCI_ACLDATA_PKT;
481 bt_cb(skb)->expect = HCI_ACL_HDR_SIZE;
484 len = min_t(uint, bt_cb(skb)->expect, count);
485 memcpy(skb_put(skb, len), buffer, len);
489 bt_cb(skb)->expect -= len;
491 if (skb->len == HCI_ACL_HDR_SIZE) {
492 __le16 dlen = hci_acl_hdr(skb)->dlen;
494 /* Complete ACL header */
495 bt_cb(skb)->expect = __le16_to_cpu(dlen);
497 if (skb_tailroom(skb) < bt_cb(skb)->expect) {
506 if (bt_cb(skb)->expect == 0) {
508 hci_recv_frame(data->hdev, skb);
514 spin_unlock(&data->rxlock);
519 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
524 spin_lock(&data->rxlock);
531 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
537 bt_cb(skb)->pkt_type = HCI_SCODATA_PKT;
538 bt_cb(skb)->expect = HCI_SCO_HDR_SIZE;
541 len = min_t(uint, bt_cb(skb)->expect, count);
542 memcpy(skb_put(skb, len), buffer, len);
546 bt_cb(skb)->expect -= len;
548 if (skb->len == HCI_SCO_HDR_SIZE) {
549 /* Complete SCO header */
550 bt_cb(skb)->expect = hci_sco_hdr(skb)->dlen;
552 if (skb_tailroom(skb) < bt_cb(skb)->expect) {
561 if (bt_cb(skb)->expect == 0) {
563 hci_recv_frame(data->hdev, skb);
569 spin_unlock(&data->rxlock);
574 static void btusb_intr_complete(struct urb *urb)
576 struct hci_dev *hdev = urb->context;
577 struct btusb_data *data = hci_get_drvdata(hdev);
580 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
583 if (!test_bit(HCI_RUNNING, &hdev->flags))
586 if (urb->status == 0) {
587 hdev->stat.byte_rx += urb->actual_length;
589 if (btusb_recv_intr(data, urb->transfer_buffer,
590 urb->actual_length) < 0) {
591 BT_ERR("%s corrupted event packet", hdev->name);
594 } else if (urb->status == -ENOENT) {
595 /* Avoid suspend failed when usb_kill_urb */
599 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
602 usb_mark_last_busy(data->udev);
603 usb_anchor_urb(urb, &data->intr_anchor);
605 err = usb_submit_urb(urb, GFP_ATOMIC);
607 /* -EPERM: urb is being killed;
608 * -ENODEV: device got disconnected */
609 if (err != -EPERM && err != -ENODEV)
610 BT_ERR("%s urb %p failed to resubmit (%d)",
611 hdev->name, urb, -err);
612 usb_unanchor_urb(urb);
616 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
618 struct btusb_data *data = hci_get_drvdata(hdev);
624 BT_DBG("%s", hdev->name);
629 urb = usb_alloc_urb(0, mem_flags);
633 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
635 buf = kmalloc(size, mem_flags);
641 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
643 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
644 btusb_intr_complete, hdev, data->intr_ep->bInterval);
646 urb->transfer_flags |= URB_FREE_BUFFER;
648 usb_anchor_urb(urb, &data->intr_anchor);
650 err = usb_submit_urb(urb, mem_flags);
652 if (err != -EPERM && err != -ENODEV)
653 BT_ERR("%s urb %p submission failed (%d)",
654 hdev->name, urb, -err);
655 usb_unanchor_urb(urb);
663 static void btusb_bulk_complete(struct urb *urb)
665 struct hci_dev *hdev = urb->context;
666 struct btusb_data *data = hci_get_drvdata(hdev);
669 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
672 if (!test_bit(HCI_RUNNING, &hdev->flags))
675 if (urb->status == 0) {
676 hdev->stat.byte_rx += urb->actual_length;
678 if (data->recv_bulk(data, urb->transfer_buffer,
679 urb->actual_length) < 0) {
680 BT_ERR("%s corrupted ACL packet", hdev->name);
683 } else if (urb->status == -ENOENT) {
684 /* Avoid suspend failed when usb_kill_urb */
688 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
691 usb_anchor_urb(urb, &data->bulk_anchor);
692 usb_mark_last_busy(data->udev);
694 err = usb_submit_urb(urb, GFP_ATOMIC);
696 /* -EPERM: urb is being killed;
697 * -ENODEV: device got disconnected */
698 if (err != -EPERM && err != -ENODEV)
699 BT_ERR("%s urb %p failed to resubmit (%d)",
700 hdev->name, urb, -err);
701 usb_unanchor_urb(urb);
705 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
707 struct btusb_data *data = hci_get_drvdata(hdev);
711 int err, size = HCI_MAX_FRAME_SIZE;
713 BT_DBG("%s", hdev->name);
715 if (!data->bulk_rx_ep)
718 urb = usb_alloc_urb(0, mem_flags);
722 buf = kmalloc(size, mem_flags);
728 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
730 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
731 btusb_bulk_complete, hdev);
733 urb->transfer_flags |= URB_FREE_BUFFER;
735 usb_mark_last_busy(data->udev);
736 usb_anchor_urb(urb, &data->bulk_anchor);
738 err = usb_submit_urb(urb, mem_flags);
740 if (err != -EPERM && err != -ENODEV)
741 BT_ERR("%s urb %p submission failed (%d)",
742 hdev->name, urb, -err);
743 usb_unanchor_urb(urb);
751 static void btusb_isoc_complete(struct urb *urb)
753 struct hci_dev *hdev = urb->context;
754 struct btusb_data *data = hci_get_drvdata(hdev);
757 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
760 if (!test_bit(HCI_RUNNING, &hdev->flags))
763 if (urb->status == 0) {
764 for (i = 0; i < urb->number_of_packets; i++) {
765 unsigned int offset = urb->iso_frame_desc[i].offset;
766 unsigned int length = urb->iso_frame_desc[i].actual_length;
768 if (urb->iso_frame_desc[i].status)
771 hdev->stat.byte_rx += length;
773 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
775 BT_ERR("%s corrupted SCO packet", hdev->name);
779 } else if (urb->status == -ENOENT) {
780 /* Avoid suspend failed when usb_kill_urb */
784 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
787 usb_anchor_urb(urb, &data->isoc_anchor);
789 err = usb_submit_urb(urb, GFP_ATOMIC);
791 /* -EPERM: urb is being killed;
792 * -ENODEV: device got disconnected */
793 if (err != -EPERM && err != -ENODEV)
794 BT_ERR("%s urb %p failed to resubmit (%d)",
795 hdev->name, urb, -err);
796 usb_unanchor_urb(urb);
800 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
804 BT_DBG("len %d mtu %d", len, mtu);
806 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
807 i++, offset += mtu, len -= mtu) {
808 urb->iso_frame_desc[i].offset = offset;
809 urb->iso_frame_desc[i].length = mtu;
812 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
813 urb->iso_frame_desc[i].offset = offset;
814 urb->iso_frame_desc[i].length = len;
818 urb->number_of_packets = i;
821 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
823 struct btusb_data *data = hci_get_drvdata(hdev);
829 BT_DBG("%s", hdev->name);
831 if (!data->isoc_rx_ep)
834 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
838 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
839 BTUSB_MAX_ISOC_FRAMES;
841 buf = kmalloc(size, mem_flags);
847 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
849 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
850 hdev, data->isoc_rx_ep->bInterval);
852 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
854 __fill_isoc_descriptor(urb, size,
855 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
857 usb_anchor_urb(urb, &data->isoc_anchor);
859 err = usb_submit_urb(urb, mem_flags);
861 if (err != -EPERM && err != -ENODEV)
862 BT_ERR("%s urb %p submission failed (%d)",
863 hdev->name, urb, -err);
864 usb_unanchor_urb(urb);
872 static void btusb_tx_complete(struct urb *urb)
874 struct sk_buff *skb = urb->context;
875 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
876 struct btusb_data *data = hci_get_drvdata(hdev);
878 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
881 if (!test_bit(HCI_RUNNING, &hdev->flags))
885 hdev->stat.byte_tx += urb->transfer_buffer_length;
890 spin_lock(&data->txlock);
891 data->tx_in_flight--;
892 spin_unlock(&data->txlock);
894 kfree(urb->setup_packet);
899 static void btusb_isoc_tx_complete(struct urb *urb)
901 struct sk_buff *skb = urb->context;
902 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
904 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
907 if (!test_bit(HCI_RUNNING, &hdev->flags))
911 hdev->stat.byte_tx += urb->transfer_buffer_length;
916 kfree(urb->setup_packet);
921 static int btusb_open(struct hci_dev *hdev)
923 struct btusb_data *data = hci_get_drvdata(hdev);
926 BT_DBG("%s", hdev->name);
928 /* Patching USB firmware files prior to starting any URBs of HCI path
929 * It is more safe to use USB bulk channel for downloading USB patch
931 if (data->setup_on_usb) {
932 err = data->setup_on_usb(hdev);
937 err = usb_autopm_get_interface(data->intf);
941 data->intf->needs_remote_wakeup = 1;
943 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
946 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
950 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
952 usb_kill_anchored_urbs(&data->intr_anchor);
956 set_bit(BTUSB_BULK_RUNNING, &data->flags);
957 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
960 usb_autopm_put_interface(data->intf);
964 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
965 usb_autopm_put_interface(data->intf);
969 static void btusb_stop_traffic(struct btusb_data *data)
971 usb_kill_anchored_urbs(&data->intr_anchor);
972 usb_kill_anchored_urbs(&data->bulk_anchor);
973 usb_kill_anchored_urbs(&data->isoc_anchor);
976 static int btusb_close(struct hci_dev *hdev)
978 struct btusb_data *data = hci_get_drvdata(hdev);
981 BT_DBG("%s", hdev->name);
983 cancel_work_sync(&data->work);
984 cancel_work_sync(&data->waker);
986 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
987 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
988 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
990 btusb_stop_traffic(data);
991 btusb_free_frags(data);
993 err = usb_autopm_get_interface(data->intf);
997 data->intf->needs_remote_wakeup = 0;
998 usb_autopm_put_interface(data->intf);
1001 usb_scuttle_anchored_urbs(&data->deferred);
1005 static int btusb_flush(struct hci_dev *hdev)
1007 struct btusb_data *data = hci_get_drvdata(hdev);
1009 BT_DBG("%s", hdev->name);
1011 usb_kill_anchored_urbs(&data->tx_anchor);
1012 btusb_free_frags(data);
1017 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
1019 struct btusb_data *data = hci_get_drvdata(hdev);
1020 struct usb_ctrlrequest *dr;
1024 urb = usb_alloc_urb(0, GFP_KERNEL);
1026 return ERR_PTR(-ENOMEM);
1028 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
1031 return ERR_PTR(-ENOMEM);
1034 dr->bRequestType = data->cmdreq_type;
1035 dr->bRequest = data->cmdreq;
1038 dr->wLength = __cpu_to_le16(skb->len);
1040 pipe = usb_sndctrlpipe(data->udev, 0x00);
1042 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
1043 skb->data, skb->len, btusb_tx_complete, skb);
1045 skb->dev = (void *)hdev;
1050 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
1052 struct btusb_data *data = hci_get_drvdata(hdev);
1056 if (!data->bulk_tx_ep)
1057 return ERR_PTR(-ENODEV);
1059 urb = usb_alloc_urb(0, GFP_KERNEL);
1061 return ERR_PTR(-ENOMEM);
1063 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
1065 usb_fill_bulk_urb(urb, data->udev, pipe,
1066 skb->data, skb->len, btusb_tx_complete, skb);
1068 skb->dev = (void *)hdev;
1073 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
1075 struct btusb_data *data = hci_get_drvdata(hdev);
1079 if (!data->isoc_tx_ep)
1080 return ERR_PTR(-ENODEV);
1082 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
1084 return ERR_PTR(-ENOMEM);
1086 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
1088 usb_fill_int_urb(urb, data->udev, pipe,
1089 skb->data, skb->len, btusb_isoc_tx_complete,
1090 skb, data->isoc_tx_ep->bInterval);
1092 urb->transfer_flags = URB_ISO_ASAP;
1094 __fill_isoc_descriptor(urb, skb->len,
1095 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
1097 skb->dev = (void *)hdev;
1102 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
1104 struct btusb_data *data = hci_get_drvdata(hdev);
1107 usb_anchor_urb(urb, &data->tx_anchor);
1109 err = usb_submit_urb(urb, GFP_KERNEL);
1111 if (err != -EPERM && err != -ENODEV)
1112 BT_ERR("%s urb %p submission failed (%d)",
1113 hdev->name, urb, -err);
1114 kfree(urb->setup_packet);
1115 usb_unanchor_urb(urb);
1117 usb_mark_last_busy(data->udev);
1124 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
1126 struct btusb_data *data = hci_get_drvdata(hdev);
1127 unsigned long flags;
1130 spin_lock_irqsave(&data->txlock, flags);
1131 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
1133 data->tx_in_flight++;
1134 spin_unlock_irqrestore(&data->txlock, flags);
1137 return submit_tx_urb(hdev, urb);
1139 usb_anchor_urb(urb, &data->deferred);
1140 schedule_work(&data->waker);
1146 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
1150 BT_DBG("%s", hdev->name);
1152 switch (bt_cb(skb)->pkt_type) {
1153 case HCI_COMMAND_PKT:
1154 urb = alloc_ctrl_urb(hdev, skb);
1156 return PTR_ERR(urb);
1158 hdev->stat.cmd_tx++;
1159 return submit_or_queue_tx_urb(hdev, urb);
1161 case HCI_ACLDATA_PKT:
1162 urb = alloc_bulk_urb(hdev, skb);
1164 return PTR_ERR(urb);
1166 hdev->stat.acl_tx++;
1167 return submit_or_queue_tx_urb(hdev, urb);
1169 case HCI_SCODATA_PKT:
1170 if (hci_conn_num(hdev, SCO_LINK) < 1)
1173 urb = alloc_isoc_urb(hdev, skb);
1175 return PTR_ERR(urb);
1177 hdev->stat.sco_tx++;
1178 return submit_tx_urb(hdev, urb);
1184 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
1186 struct btusb_data *data = hci_get_drvdata(hdev);
1188 BT_DBG("%s evt %d", hdev->name, evt);
1190 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
1191 data->sco_num = hci_conn_num(hdev, SCO_LINK);
1192 schedule_work(&data->work);
1196 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
1198 struct btusb_data *data = hci_get_drvdata(hdev);
1199 struct usb_interface *intf = data->isoc;
1200 struct usb_endpoint_descriptor *ep_desc;
1206 err = usb_set_interface(data->udev, 1, altsetting);
1208 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
1212 data->isoc_altsetting = altsetting;
1214 data->isoc_tx_ep = NULL;
1215 data->isoc_rx_ep = NULL;
1217 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1218 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1220 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
1221 data->isoc_tx_ep = ep_desc;
1225 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
1226 data->isoc_rx_ep = ep_desc;
1231 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
1232 BT_ERR("%s invalid SCO descriptors", hdev->name);
1239 static void btusb_work(struct work_struct *work)
1241 struct btusb_data *data = container_of(work, struct btusb_data, work);
1242 struct hci_dev *hdev = data->hdev;
1246 if (data->sco_num > 0) {
1247 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
1248 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
1250 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1251 usb_kill_anchored_urbs(&data->isoc_anchor);
1255 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
1258 if (hdev->voice_setting & 0x0020) {
1259 static const int alts[3] = { 2, 4, 5 };
1261 new_alts = alts[data->sco_num - 1];
1263 new_alts = data->sco_num;
1266 if (data->isoc_altsetting != new_alts) {
1267 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1268 usb_kill_anchored_urbs(&data->isoc_anchor);
1270 /* When isochronous alternate setting needs to be
1271 * changed, because SCO connection has been added
1272 * or removed, a packet fragment may be left in the
1273 * reassembling state. This could lead to wrongly
1274 * assembled fragments.
1276 * Clear outstanding fragment when selecting a new
1277 * alternate setting.
1279 spin_lock(&data->rxlock);
1280 kfree_skb(data->sco_skb);
1281 data->sco_skb = NULL;
1282 spin_unlock(&data->rxlock);
1284 if (__set_isoc_interface(hdev, new_alts) < 0)
1288 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1289 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
1290 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1292 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
1295 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1296 usb_kill_anchored_urbs(&data->isoc_anchor);
1298 __set_isoc_interface(hdev, 0);
1299 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
1300 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
1304 static void btusb_waker(struct work_struct *work)
1306 struct btusb_data *data = container_of(work, struct btusb_data, waker);
1309 err = usb_autopm_get_interface(data->intf);
1313 usb_autopm_put_interface(data->intf);
1316 static int btusb_setup_bcm92035(struct hci_dev *hdev)
1318 struct sk_buff *skb;
1321 BT_DBG("%s", hdev->name);
1323 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
1325 BT_ERR("BCM92035 command failed (%ld)", -PTR_ERR(skb));
1332 static int btusb_setup_csr(struct hci_dev *hdev)
1334 struct hci_rp_read_local_version *rp;
1335 struct sk_buff *skb;
1337 BT_DBG("%s", hdev->name);
1339 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1342 int err = PTR_ERR(skb);
1343 BT_ERR("%s: CSR: Local version failed (%d)", hdev->name, err);
1347 if (skb->len != sizeof(struct hci_rp_read_local_version)) {
1348 BT_ERR("%s: CSR: Local version length mismatch", hdev->name);
1353 rp = (struct hci_rp_read_local_version *)skb->data;
1355 /* Detect controllers which aren't real CSR ones. */
1356 if (le16_to_cpu(rp->manufacturer) != 10 ||
1357 le16_to_cpu(rp->lmp_subver) == 0x0c5c) {
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, &hdev->quirks);
1374 static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev,
1375 struct intel_version *ver)
1377 const struct firmware *fw;
1381 snprintf(fwname, sizeof(fwname),
1382 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq",
1383 ver->hw_platform, ver->hw_variant, ver->hw_revision,
1384 ver->fw_variant, ver->fw_revision, ver->fw_build_num,
1385 ver->fw_build_ww, ver->fw_build_yy);
1387 ret = request_firmware(&fw, fwname, &hdev->dev);
1389 if (ret == -EINVAL) {
1390 BT_ERR("%s Intel firmware file request failed (%d)",
1395 BT_ERR("%s failed to open Intel firmware file: %s(%d)",
1396 hdev->name, fwname, ret);
1398 /* If the correct firmware patch file is not found, use the
1399 * default firmware patch file instead
1401 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq",
1402 ver->hw_platform, ver->hw_variant);
1403 if (request_firmware(&fw, fwname, &hdev->dev) < 0) {
1404 BT_ERR("%s failed to open default Intel fw file: %s",
1405 hdev->name, fwname);
1410 BT_INFO("%s: Intel Bluetooth firmware file: %s", hdev->name, fwname);
1415 static int btusb_setup_intel_patching(struct hci_dev *hdev,
1416 const struct firmware *fw,
1417 const u8 **fw_ptr, int *disable_patch)
1419 struct sk_buff *skb;
1420 struct hci_command_hdr *cmd;
1421 const u8 *cmd_param;
1422 struct hci_event_hdr *evt = NULL;
1423 const u8 *evt_param = NULL;
1424 int remain = fw->size - (*fw_ptr - fw->data);
1426 /* The first byte indicates the types of the patch command or event.
1427 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes
1428 * in the current firmware buffer doesn't start with 0x01 or
1429 * the size of remain buffer is smaller than HCI command header,
1430 * the firmware file is corrupted and it should stop the patching
1433 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) {
1434 BT_ERR("%s Intel fw corrupted: invalid cmd read", hdev->name);
1440 cmd = (struct hci_command_hdr *)(*fw_ptr);
1441 *fw_ptr += sizeof(*cmd);
1442 remain -= sizeof(*cmd);
1444 /* Ensure that the remain firmware data is long enough than the length
1445 * of command parameter. If not, the firmware file is corrupted.
1447 if (remain < cmd->plen) {
1448 BT_ERR("%s Intel fw corrupted: invalid cmd len", hdev->name);
1452 /* If there is a command that loads a patch in the firmware
1453 * file, then enable the patch upon success, otherwise just
1454 * disable the manufacturer mode, for example patch activation
1455 * is not required when the default firmware patch file is used
1456 * because there are no patch data to load.
1458 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e)
1461 cmd_param = *fw_ptr;
1462 *fw_ptr += cmd->plen;
1463 remain -= cmd->plen;
1465 /* This reads the expected events when the above command is sent to the
1466 * device. Some vendor commands expects more than one events, for
1467 * example command status event followed by vendor specific event.
1468 * For this case, it only keeps the last expected event. so the command
1469 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of
1470 * last expected event.
1472 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) {
1476 evt = (struct hci_event_hdr *)(*fw_ptr);
1477 *fw_ptr += sizeof(*evt);
1478 remain -= sizeof(*evt);
1480 if (remain < evt->plen) {
1481 BT_ERR("%s Intel fw corrupted: invalid evt len",
1486 evt_param = *fw_ptr;
1487 *fw_ptr += evt->plen;
1488 remain -= evt->plen;
1491 /* Every HCI commands in the firmware file has its correspond event.
1492 * If event is not found or remain is smaller than zero, the firmware
1493 * file is corrupted.
1495 if (!evt || !evt_param || remain < 0) {
1496 BT_ERR("%s Intel fw corrupted: invalid evt read", hdev->name);
1500 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen,
1501 cmd_param, evt->evt, HCI_INIT_TIMEOUT);
1503 BT_ERR("%s sending Intel patch command (0x%4.4x) failed (%ld)",
1504 hdev->name, cmd->opcode, PTR_ERR(skb));
1505 return PTR_ERR(skb);
1508 /* It ensures that the returned event matches the event data read from
1509 * the firmware file. At fist, it checks the length and then
1510 * the contents of the event.
1512 if (skb->len != evt->plen) {
1513 BT_ERR("%s mismatch event length (opcode 0x%4.4x)", hdev->name,
1514 le16_to_cpu(cmd->opcode));
1519 if (memcmp(skb->data, evt_param, evt->plen)) {
1520 BT_ERR("%s mismatch event parameter (opcode 0x%4.4x)",
1521 hdev->name, le16_to_cpu(cmd->opcode));
1530 static int btusb_setup_intel(struct hci_dev *hdev)
1532 struct sk_buff *skb;
1533 const struct firmware *fw;
1536 struct intel_version *ver;
1538 const u8 mfg_enable[] = { 0x01, 0x00 };
1539 const u8 mfg_disable[] = { 0x00, 0x00 };
1540 const u8 mfg_reset_deactivate[] = { 0x00, 0x01 };
1541 const u8 mfg_reset_activate[] = { 0x00, 0x02 };
1543 BT_DBG("%s", hdev->name);
1545 /* The controller has a bug with the first HCI command sent to it
1546 * returning number of completed commands as zero. This would stall the
1547 * command processing in the Bluetooth core.
1549 * As a workaround, send HCI Reset command first which will reset the
1550 * number of completed commands and allow normal command processing
1553 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1555 BT_ERR("%s sending initial HCI reset command failed (%ld)",
1556 hdev->name, PTR_ERR(skb));
1557 return PTR_ERR(skb);
1561 /* Read Intel specific controller version first to allow selection of
1562 * which firmware file to load.
1564 * The returned information are hardware variant and revision plus
1565 * firmware variant, revision and build number.
1567 skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT);
1569 BT_ERR("%s reading Intel fw version command failed (%ld)",
1570 hdev->name, PTR_ERR(skb));
1571 return PTR_ERR(skb);
1574 if (skb->len != sizeof(*ver)) {
1575 BT_ERR("%s Intel version event length mismatch", hdev->name);
1580 ver = (struct intel_version *)skb->data;
1582 BT_INFO("%s: read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
1583 hdev->name, ver->hw_platform, ver->hw_variant,
1584 ver->hw_revision, ver->fw_variant, ver->fw_revision,
1585 ver->fw_build_num, ver->fw_build_ww, ver->fw_build_yy,
1588 /* fw_patch_num indicates the version of patch the device currently
1589 * have. If there is no patch data in the device, it is always 0x00.
1590 * So, if it is other than 0x00, no need to patch the device again.
1592 if (ver->fw_patch_num) {
1593 BT_INFO("%s: Intel device is already patched. patch num: %02x",
1594 hdev->name, ver->fw_patch_num);
1596 btintel_check_bdaddr(hdev);
1600 /* Opens the firmware patch file based on the firmware version read
1601 * from the controller. If it fails to open the matching firmware
1602 * patch file, it tries to open the default firmware patch file.
1603 * If no patch file is found, allow the device to operate without
1606 fw = btusb_setup_intel_get_fw(hdev, ver);
1609 btintel_check_bdaddr(hdev);
1616 /* This Intel specific command enables the manufacturer mode of the
1619 * Only while this mode is enabled, the driver can download the
1620 * firmware patch data and configuration parameters.
1622 skb = __hci_cmd_sync(hdev, 0xfc11, 2, mfg_enable, HCI_INIT_TIMEOUT);
1624 BT_ERR("%s entering Intel manufacturer mode failed (%ld)",
1625 hdev->name, PTR_ERR(skb));
1626 release_firmware(fw);
1627 return PTR_ERR(skb);
1634 /* The firmware data file consists of list of Intel specific HCI
1635 * commands and its expected events. The first byte indicates the
1636 * type of the message, either HCI command or HCI event.
1638 * It reads the command and its expected event from the firmware file,
1639 * and send to the controller. Once __hci_cmd_sync_ev() returns,
1640 * the returned event is compared with the event read from the firmware
1641 * file and it will continue until all the messages are downloaded to
1644 * Once the firmware patching is completed successfully,
1645 * the manufacturer mode is disabled with reset and activating the
1648 * If the firmware patching fails, the manufacturer mode is
1649 * disabled with reset and deactivating the patch.
1651 * If the default patch file is used, no reset is done when disabling
1654 while (fw->size > fw_ptr - fw->data) {
1657 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr,
1660 goto exit_mfg_deactivate;
1663 release_firmware(fw);
1666 goto exit_mfg_disable;
1668 /* Patching completed successfully and disable the manufacturer mode
1669 * with reset and activate the downloaded firmware patches.
1671 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_activate),
1672 mfg_reset_activate, HCI_INIT_TIMEOUT);
1674 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1675 hdev->name, PTR_ERR(skb));
1676 return PTR_ERR(skb);
1680 BT_INFO("%s: Intel Bluetooth firmware patch completed and activated",
1683 btintel_check_bdaddr(hdev);
1687 /* Disable the manufacturer mode without reset */
1688 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_disable), mfg_disable,
1691 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1692 hdev->name, PTR_ERR(skb));
1693 return PTR_ERR(skb);
1697 BT_INFO("%s: Intel Bluetooth firmware patch completed", hdev->name);
1699 btintel_check_bdaddr(hdev);
1702 exit_mfg_deactivate:
1703 release_firmware(fw);
1705 /* Patching failed. Disable the manufacturer mode with reset and
1706 * deactivate the downloaded firmware patches.
1708 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_deactivate),
1709 mfg_reset_deactivate, HCI_INIT_TIMEOUT);
1711 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
1712 hdev->name, PTR_ERR(skb));
1713 return PTR_ERR(skb);
1717 BT_INFO("%s: Intel Bluetooth firmware patch completed and deactivated",
1720 btintel_check_bdaddr(hdev);
1724 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
1726 struct sk_buff *skb;
1727 struct hci_event_hdr *hdr;
1728 struct hci_ev_cmd_complete *evt;
1730 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_ATOMIC);
1734 hdr = (struct hci_event_hdr *)skb_put(skb, sizeof(*hdr));
1735 hdr->evt = HCI_EV_CMD_COMPLETE;
1736 hdr->plen = sizeof(*evt) + 1;
1738 evt = (struct hci_ev_cmd_complete *)skb_put(skb, sizeof(*evt));
1740 evt->opcode = cpu_to_le16(opcode);
1742 *skb_put(skb, 1) = 0x00;
1744 bt_cb(skb)->pkt_type = HCI_EVENT_PKT;
1746 return hci_recv_frame(hdev, skb);
1749 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
1752 /* When the device is in bootloader mode, then it can send
1753 * events via the bulk endpoint. These events are treated the
1754 * same way as the ones received from the interrupt endpoint.
1756 if (test_bit(BTUSB_BOOTLOADER, &data->flags))
1757 return btusb_recv_intr(data, buffer, count);
1759 return btusb_recv_bulk(data, buffer, count);
1762 static void btusb_intel_bootup(struct btusb_data *data, const void *ptr,
1765 const struct intel_bootup *evt = ptr;
1767 if (len != sizeof(*evt))
1770 if (test_and_clear_bit(BTUSB_BOOTING, &data->flags)) {
1771 smp_mb__after_atomic();
1772 wake_up_bit(&data->flags, BTUSB_BOOTING);
1776 static void btusb_intel_secure_send_result(struct btusb_data *data,
1777 const void *ptr, unsigned int len)
1779 const struct intel_secure_send_result *evt = ptr;
1781 if (len != sizeof(*evt))
1785 set_bit(BTUSB_FIRMWARE_FAILED, &data->flags);
1787 if (test_and_clear_bit(BTUSB_DOWNLOADING, &data->flags) &&
1788 test_bit(BTUSB_FIRMWARE_LOADED, &data->flags)) {
1789 smp_mb__after_atomic();
1790 wake_up_bit(&data->flags, BTUSB_DOWNLOADING);
1794 static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb)
1796 struct btusb_data *data = hci_get_drvdata(hdev);
1798 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
1799 struct hci_event_hdr *hdr = (void *)skb->data;
1801 if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff &&
1803 const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1;
1804 unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1;
1806 switch (skb->data[2]) {
1808 /* When switching to the operational firmware
1809 * the device sends a vendor specific event
1810 * indicating that the bootup completed.
1812 btusb_intel_bootup(data, ptr, len);
1815 /* When the firmware loading completes the
1816 * device sends out a vendor specific event
1817 * indicating the result of the firmware
1820 btusb_intel_secure_send_result(data, ptr, len);
1826 return hci_recv_frame(hdev, skb);
1829 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
1831 struct btusb_data *data = hci_get_drvdata(hdev);
1834 BT_DBG("%s", hdev->name);
1836 switch (bt_cb(skb)->pkt_type) {
1837 case HCI_COMMAND_PKT:
1838 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
1839 struct hci_command_hdr *cmd = (void *)skb->data;
1840 __u16 opcode = le16_to_cpu(cmd->opcode);
1842 /* When in bootloader mode and the command 0xfc09
1843 * is received, it needs to be send down the
1844 * bulk endpoint. So allocate a bulk URB instead.
1846 if (opcode == 0xfc09)
1847 urb = alloc_bulk_urb(hdev, skb);
1849 urb = alloc_ctrl_urb(hdev, skb);
1851 /* When the 0xfc01 command is issued to boot into
1852 * the operational firmware, it will actually not
1853 * send a command complete event. To keep the flow
1854 * control working inject that event here.
1856 if (opcode == 0xfc01)
1857 inject_cmd_complete(hdev, opcode);
1859 urb = alloc_ctrl_urb(hdev, skb);
1862 return PTR_ERR(urb);
1864 hdev->stat.cmd_tx++;
1865 return submit_or_queue_tx_urb(hdev, urb);
1867 case HCI_ACLDATA_PKT:
1868 urb = alloc_bulk_urb(hdev, skb);
1870 return PTR_ERR(urb);
1872 hdev->stat.acl_tx++;
1873 return submit_or_queue_tx_urb(hdev, urb);
1875 case HCI_SCODATA_PKT:
1876 if (hci_conn_num(hdev, SCO_LINK) < 1)
1879 urb = alloc_isoc_urb(hdev, skb);
1881 return PTR_ERR(urb);
1883 hdev->stat.sco_tx++;
1884 return submit_tx_urb(hdev, urb);
1890 static int btusb_setup_intel_new(struct hci_dev *hdev)
1892 static const u8 reset_param[] = { 0x00, 0x01, 0x00, 0x01,
1893 0x00, 0x08, 0x04, 0x00 };
1894 struct btusb_data *data = hci_get_drvdata(hdev);
1895 struct sk_buff *skb;
1896 struct intel_version *ver;
1897 struct intel_boot_params *params;
1898 const struct firmware *fw;
1902 ktime_t calltime, delta, rettime;
1903 unsigned long long duration;
1906 BT_DBG("%s", hdev->name);
1908 calltime = ktime_get();
1910 /* Read the Intel version information to determine if the device
1911 * is in bootloader mode or if it already has operational firmware
1914 skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT);
1916 BT_ERR("%s: Reading Intel version information failed (%ld)",
1917 hdev->name, PTR_ERR(skb));
1918 return PTR_ERR(skb);
1921 if (skb->len != sizeof(*ver)) {
1922 BT_ERR("%s: Intel version event size mismatch", hdev->name);
1927 ver = (struct intel_version *)skb->data;
1929 /* The hardware platform number has a fixed value of 0x37 and
1930 * for now only accept this single value.
1932 if (ver->hw_platform != 0x37) {
1933 BT_ERR("%s: Unsupported Intel hardware platform (%u)",
1934 hdev->name, ver->hw_platform);
1939 /* At the moment only the hardware variant iBT 3.0 (LnP/SfP) is
1940 * supported by this firmware loading method. This check has been
1941 * put in place to ensure correct forward compatibility options
1942 * when newer hardware variants come along.
1944 if (ver->hw_variant != 0x0b) {
1945 BT_ERR("%s: Unsupported Intel hardware variant (%u)",
1946 hdev->name, ver->hw_variant);
1951 btintel_version_info(hdev, ver);
1953 /* The firmware variant determines if the device is in bootloader
1954 * mode or is running operational firmware. The value 0x06 identifies
1955 * the bootloader and the value 0x23 identifies the operational
1958 * When the operational firmware is already present, then only
1959 * the check for valid Bluetooth device address is needed. This
1960 * determines if the device will be added as configured or
1961 * unconfigured controller.
1963 * It is not possible to use the Secure Boot Parameters in this
1964 * case since that command is only available in bootloader mode.
1966 if (ver->fw_variant == 0x23) {
1968 clear_bit(BTUSB_BOOTLOADER, &data->flags);
1969 btintel_check_bdaddr(hdev);
1973 /* If the device is not in bootloader mode, then the only possible
1974 * choice is to return an error and abort the device initialization.
1976 if (ver->fw_variant != 0x06) {
1977 BT_ERR("%s: Unsupported Intel firmware variant (%u)",
1978 hdev->name, ver->fw_variant);
1985 /* Read the secure boot parameters to identify the operating
1986 * details of the bootloader.
1988 skb = __hci_cmd_sync(hdev, 0xfc0d, 0, NULL, HCI_INIT_TIMEOUT);
1990 BT_ERR("%s: Reading Intel boot parameters failed (%ld)",
1991 hdev->name, PTR_ERR(skb));
1992 return PTR_ERR(skb);
1995 if (skb->len != sizeof(*params)) {
1996 BT_ERR("%s: Intel boot parameters size mismatch", hdev->name);
2001 params = (struct intel_boot_params *)skb->data;
2003 BT_INFO("%s: Device revision is %u", hdev->name,
2004 le16_to_cpu(params->dev_revid));
2006 BT_INFO("%s: Secure boot is %s", hdev->name,
2007 params->secure_boot ? "enabled" : "disabled");
2009 BT_INFO("%s: Minimum firmware build %u week %u %u", hdev->name,
2010 params->min_fw_build_nn, params->min_fw_build_cw,
2011 2000 + params->min_fw_build_yy);
2013 /* It is required that every single firmware fragment is acknowledged
2014 * with a command complete event. If the boot parameters indicate
2015 * that this bootloader does not send them, then abort the setup.
2017 if (params->limited_cce != 0x00) {
2018 BT_ERR("%s: Unsupported Intel firmware loading method (%u)",
2019 hdev->name, params->limited_cce);
2024 /* If the OTP has no valid Bluetooth device address, then there will
2025 * also be no valid address for the operational firmware.
2027 if (!bacmp(¶ms->otp_bdaddr, BDADDR_ANY)) {
2028 BT_INFO("%s: No device address configured", hdev->name);
2029 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
2032 /* With this Intel bootloader only the hardware variant and device
2033 * revision information are used to select the right firmware.
2035 * Currently this bootloader support is limited to hardware variant
2036 * iBT 3.0 (LnP/SfP) which is identified by the value 11 (0x0b).
2038 snprintf(fwname, sizeof(fwname), "intel/ibt-11-%u.sfi",
2039 le16_to_cpu(params->dev_revid));
2041 err = request_firmware(&fw, fwname, &hdev->dev);
2043 BT_ERR("%s: Failed to load Intel firmware file (%d)",
2049 BT_INFO("%s: Found device firmware: %s", hdev->name, fwname);
2051 /* Save the DDC file name for later use to apply once the firmware
2052 * downloading is done.
2054 snprintf(fwname, sizeof(fwname), "intel/ibt-11-%u.ddc",
2055 le16_to_cpu(params->dev_revid));
2059 if (fw->size < 644) {
2060 BT_ERR("%s: Invalid size of firmware file (%zu)",
2061 hdev->name, fw->size);
2066 set_bit(BTUSB_DOWNLOADING, &data->flags);
2068 /* Start the firmware download transaction with the Init fragment
2069 * represented by the 128 bytes of CSS header.
2071 err = btintel_secure_send(hdev, 0x00, 128, fw->data);
2073 BT_ERR("%s: Failed to send firmware header (%d)",
2078 /* Send the 256 bytes of public key information from the firmware
2079 * as the PKey fragment.
2081 err = btintel_secure_send(hdev, 0x03, 256, fw->data + 128);
2083 BT_ERR("%s: Failed to send firmware public key (%d)",
2088 /* Send the 256 bytes of signature information from the firmware
2089 * as the Sign fragment.
2091 err = btintel_secure_send(hdev, 0x02, 256, fw->data + 388);
2093 BT_ERR("%s: Failed to send firmware signature (%d)",
2098 fw_ptr = fw->data + 644;
2101 while (fw_ptr - fw->data < fw->size) {
2102 struct hci_command_hdr *cmd = (void *)(fw_ptr + frag_len);
2104 frag_len += sizeof(*cmd) + cmd->plen;
2106 /* The parameter length of the secure send command requires
2107 * a 4 byte alignment. It happens so that the firmware file
2108 * contains proper Intel_NOP commands to align the fragments
2111 * Send set of commands with 4 byte alignment from the
2112 * firmware data buffer as a single Data fragement.
2114 if (!(frag_len % 4)) {
2115 err = btintel_secure_send(hdev, 0x01, frag_len, fw_ptr);
2117 BT_ERR("%s: Failed to send firmware data (%d)",
2127 set_bit(BTUSB_FIRMWARE_LOADED, &data->flags);
2129 BT_INFO("%s: Waiting for firmware download to complete", hdev->name);
2131 /* Before switching the device into operational mode and with that
2132 * booting the loaded firmware, wait for the bootloader notification
2133 * that all fragments have been successfully received.
2135 * When the event processing receives the notification, then the
2136 * BTUSB_DOWNLOADING flag will be cleared.
2138 * The firmware loading should not take longer than 5 seconds
2139 * and thus just timeout if that happens and fail the setup
2142 err = wait_on_bit_timeout(&data->flags, BTUSB_DOWNLOADING,
2144 msecs_to_jiffies(5000));
2146 BT_ERR("%s: Firmware loading interrupted", hdev->name);
2152 BT_ERR("%s: Firmware loading timeout", hdev->name);
2157 if (test_bit(BTUSB_FIRMWARE_FAILED, &data->flags)) {
2158 BT_ERR("%s: Firmware loading failed", hdev->name);
2163 rettime = ktime_get();
2164 delta = ktime_sub(rettime, calltime);
2165 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2167 BT_INFO("%s: Firmware loaded in %llu usecs", hdev->name, duration);
2170 release_firmware(fw);
2175 calltime = ktime_get();
2177 set_bit(BTUSB_BOOTING, &data->flags);
2179 skb = __hci_cmd_sync(hdev, 0xfc01, sizeof(reset_param), reset_param,
2182 return PTR_ERR(skb);
2186 /* The bootloader will not indicate when the device is ready. This
2187 * is done by the operational firmware sending bootup notification.
2189 * Booting into operational firmware should not take longer than
2190 * 1 second. However if that happens, then just fail the setup
2191 * since something went wrong.
2193 BT_INFO("%s: Waiting for device to boot", hdev->name);
2195 err = wait_on_bit_timeout(&data->flags, BTUSB_BOOTING,
2197 msecs_to_jiffies(1000));
2200 BT_ERR("%s: Device boot interrupted", hdev->name);
2205 BT_ERR("%s: Device boot timeout", hdev->name);
2209 rettime = ktime_get();
2210 delta = ktime_sub(rettime, calltime);
2211 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2213 BT_INFO("%s: Device booted in %llu usecs", hdev->name, duration);
2215 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2217 /* Once the device is running in operational mode, it needs to apply
2218 * the device configuration (DDC) parameters.
2220 * The device can work without DDC parameters, so even if it fails
2221 * to load the file, no need to fail the setup.
2223 btintel_load_ddc_config(hdev, fwname);
2228 static int btusb_shutdown_intel(struct hci_dev *hdev)
2230 struct sk_buff *skb;
2233 /* Some platforms have an issue with BT LED when the interface is
2234 * down or BT radio is turned off, which takes 5 seconds to BT LED
2235 * goes off. This command turns off the BT LED immediately.
2237 skb = __hci_cmd_sync(hdev, 0xfc3f, 0, NULL, HCI_INIT_TIMEOUT);
2240 BT_ERR("%s: turning off Intel device LED failed (%ld)",
2249 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
2250 const bdaddr_t *bdaddr)
2252 struct sk_buff *skb;
2257 buf[1] = sizeof(bdaddr_t);
2258 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
2260 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2263 BT_ERR("%s: changing Marvell device address failed (%ld)",
2272 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
2273 const bdaddr_t *bdaddr)
2275 struct sk_buff *skb;
2282 buf[3] = sizeof(bdaddr_t);
2283 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
2285 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2288 BT_ERR("%s: Change address command failed (%ld)",
2297 #define QCA_DFU_PACKET_LEN 4096
2299 #define QCA_GET_TARGET_VERSION 0x09
2300 #define QCA_CHECK_STATUS 0x05
2301 #define QCA_DFU_DOWNLOAD 0x01
2303 #define QCA_SYSCFG_UPDATED 0x40
2304 #define QCA_PATCH_UPDATED 0x80
2305 #define QCA_DFU_TIMEOUT 3000
2307 struct qca_version {
2309 __le32 patch_version;
2315 struct qca_rampatch_version {
2317 __le16 patch_version;
2320 struct qca_device_info {
2322 u8 rampatch_hdr; /* length of header in rampatch */
2323 u8 nvm_hdr; /* length of header in NVM */
2324 u8 ver_offset; /* offset of version structure in rampatch */
2327 static const struct qca_device_info qca_devices_table[] = {
2328 { 0x00000100, 20, 4, 10 }, /* Rome 1.0 */
2329 { 0x00000101, 20, 4, 10 }, /* Rome 1.1 */
2330 { 0x00000200, 28, 4, 18 }, /* Rome 2.0 */
2331 { 0x00000201, 28, 4, 18 }, /* Rome 2.1 */
2332 { 0x00000300, 28, 4, 18 }, /* Rome 3.0 */
2333 { 0x00000302, 28, 4, 18 }, /* Rome 3.2 */
2336 static int btusb_qca_send_vendor_req(struct hci_dev *hdev, u8 request,
2337 void *data, u16 size)
2339 struct btusb_data *btdata = hci_get_drvdata(hdev);
2340 struct usb_device *udev = btdata->udev;
2344 buf = kmalloc(size, GFP_KERNEL);
2348 /* Found some of USB hosts have IOT issues with ours so that we should
2349 * not wait until HCI layer is ready.
2351 pipe = usb_rcvctrlpipe(udev, 0);
2352 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
2353 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
2355 BT_ERR("%s: Failed to access otp area (%d)", hdev->name, err);
2359 memcpy(data, buf, size);
2367 static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
2368 const struct firmware *firmware,
2371 struct btusb_data *btdata = hci_get_drvdata(hdev);
2372 struct usb_device *udev = btdata->udev;
2373 size_t count, size, sent = 0;
2377 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
2381 count = firmware->size;
2383 size = min_t(size_t, count, hdr_size);
2384 memcpy(buf, firmware->data, size);
2386 /* USB patches should go down to controller through USB path
2387 * because binary format fits to go down through USB channel.
2388 * USB control path is for patching headers and USB bulk is for
2391 pipe = usb_sndctrlpipe(udev, 0);
2392 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
2393 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
2395 BT_ERR("%s: Failed to send headers (%d)", hdev->name, err);
2403 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
2405 memcpy(buf, firmware->data + sent, size);
2407 pipe = usb_sndbulkpipe(udev, 0x02);
2408 err = usb_bulk_msg(udev, pipe, buf, size, &len,
2411 BT_ERR("%s: Failed to send body at %zd of %zd (%d)",
2412 hdev->name, sent, firmware->size, err);
2417 BT_ERR("%s: Failed to get bulk buffer", hdev->name);
2431 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
2432 struct qca_version *ver,
2433 const struct qca_device_info *info)
2435 struct qca_rampatch_version *rver;
2436 const struct firmware *fw;
2437 u32 ver_rom, ver_patch;
2438 u16 rver_rom, rver_patch;
2442 ver_rom = le32_to_cpu(ver->rom_version);
2443 ver_patch = le32_to_cpu(ver->patch_version);
2445 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom);
2447 err = request_firmware(&fw, fwname, &hdev->dev);
2449 BT_ERR("%s: failed to request rampatch file: %s (%d)",
2450 hdev->name, fwname, err);
2454 BT_INFO("%s: using rampatch file: %s", hdev->name, fwname);
2456 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
2457 rver_rom = le16_to_cpu(rver->rom_version);
2458 rver_patch = le16_to_cpu(rver->patch_version);
2460 BT_INFO("%s: QCA: patch rome 0x%x build 0x%x, firmware rome 0x%x "
2461 "build 0x%x", hdev->name, rver_rom, rver_patch, ver_rom,
2464 if (rver_rom != ver_rom || rver_patch <= ver_patch) {
2465 BT_ERR("%s: rampatch file version did not match with firmware",
2471 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
2474 release_firmware(fw);
2479 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
2480 struct qca_version *ver,
2481 const struct qca_device_info *info)
2483 const struct firmware *fw;
2487 snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin",
2488 le32_to_cpu(ver->rom_version));
2490 err = request_firmware(&fw, fwname, &hdev->dev);
2492 BT_ERR("%s: failed to request NVM file: %s (%d)",
2493 hdev->name, fwname, err);
2497 BT_INFO("%s: using NVM file: %s", hdev->name, fwname);
2499 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
2501 release_firmware(fw);
2506 static int btusb_setup_qca(struct hci_dev *hdev)
2508 const struct qca_device_info *info = NULL;
2509 struct qca_version ver;
2514 err = btusb_qca_send_vendor_req(hdev, QCA_GET_TARGET_VERSION, &ver,
2519 ver_rom = le32_to_cpu(ver.rom_version);
2520 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
2521 if (ver_rom == qca_devices_table[i].rom_version)
2522 info = &qca_devices_table[i];
2525 BT_ERR("%s: don't support firmware rome 0x%x", hdev->name,
2530 err = btusb_qca_send_vendor_req(hdev, QCA_CHECK_STATUS, &status,
2535 if (!(status & QCA_PATCH_UPDATED)) {
2536 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
2541 if (!(status & QCA_SYSCFG_UPDATED)) {
2542 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
2550 static int btusb_probe(struct usb_interface *intf,
2551 const struct usb_device_id *id)
2553 struct usb_endpoint_descriptor *ep_desc;
2554 struct btusb_data *data;
2555 struct hci_dev *hdev;
2558 BT_DBG("intf %p id %p", intf, id);
2560 /* interface numbers are hardcoded in the spec */
2561 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
2564 if (!id->driver_info) {
2565 const struct usb_device_id *match;
2567 match = usb_match_id(intf, blacklist_table);
2572 if (id->driver_info == BTUSB_IGNORE)
2575 if (id->driver_info & BTUSB_ATH3012) {
2576 struct usb_device *udev = interface_to_usbdev(intf);
2578 /* Old firmware would otherwise let ath3k driver load
2579 * patch and sysconfig files */
2580 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
2584 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
2588 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2589 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2591 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
2592 data->intr_ep = ep_desc;
2596 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
2597 data->bulk_tx_ep = ep_desc;
2601 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
2602 data->bulk_rx_ep = ep_desc;
2607 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
2610 if (id->driver_info & BTUSB_AMP) {
2611 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
2612 data->cmdreq = 0x2b;
2614 data->cmdreq_type = USB_TYPE_CLASS;
2615 data->cmdreq = 0x00;
2618 data->udev = interface_to_usbdev(intf);
2621 INIT_WORK(&data->work, btusb_work);
2622 INIT_WORK(&data->waker, btusb_waker);
2623 init_usb_anchor(&data->deferred);
2624 init_usb_anchor(&data->tx_anchor);
2625 spin_lock_init(&data->txlock);
2627 init_usb_anchor(&data->intr_anchor);
2628 init_usb_anchor(&data->bulk_anchor);
2629 init_usb_anchor(&data->isoc_anchor);
2630 spin_lock_init(&data->rxlock);
2632 if (id->driver_info & BTUSB_INTEL_NEW) {
2633 data->recv_event = btusb_recv_event_intel;
2634 data->recv_bulk = btusb_recv_bulk_intel;
2635 set_bit(BTUSB_BOOTLOADER, &data->flags);
2637 data->recv_event = hci_recv_frame;
2638 data->recv_bulk = btusb_recv_bulk;
2641 hdev = hci_alloc_dev();
2645 hdev->bus = HCI_USB;
2646 hci_set_drvdata(hdev, data);
2648 if (id->driver_info & BTUSB_AMP)
2649 hdev->dev_type = HCI_AMP;
2651 hdev->dev_type = HCI_BREDR;
2655 SET_HCIDEV_DEV(hdev, &intf->dev);
2657 hdev->open = btusb_open;
2658 hdev->close = btusb_close;
2659 hdev->flush = btusb_flush;
2660 hdev->send = btusb_send_frame;
2661 hdev->notify = btusb_notify;
2663 if (id->driver_info & BTUSB_BCM92035)
2664 hdev->setup = btusb_setup_bcm92035;
2666 #ifdef CONFIG_BT_HCIBTUSB_BCM
2667 if (id->driver_info & BTUSB_BCM_PATCHRAM) {
2668 hdev->setup = btbcm_setup_patchram;
2669 hdev->set_bdaddr = btbcm_set_bdaddr;
2672 if (id->driver_info & BTUSB_BCM_APPLE)
2673 hdev->setup = btbcm_setup_apple;
2676 if (id->driver_info & BTUSB_INTEL) {
2677 hdev->setup = btusb_setup_intel;
2678 hdev->shutdown = btusb_shutdown_intel;
2679 hdev->set_bdaddr = btintel_set_bdaddr;
2680 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
2681 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
2684 if (id->driver_info & BTUSB_INTEL_NEW) {
2685 hdev->send = btusb_send_frame_intel;
2686 hdev->setup = btusb_setup_intel_new;
2687 hdev->hw_error = btintel_hw_error;
2688 hdev->set_bdaddr = btintel_set_bdaddr;
2689 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
2692 if (id->driver_info & BTUSB_MARVELL)
2693 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
2695 if (id->driver_info & BTUSB_SWAVE) {
2696 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
2697 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
2700 if (id->driver_info & BTUSB_INTEL_BOOT)
2701 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
2703 if (id->driver_info & BTUSB_ATH3012) {
2704 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
2705 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
2706 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
2709 if (id->driver_info & BTUSB_QCA_ROME) {
2710 data->setup_on_usb = btusb_setup_qca;
2711 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
2714 #ifdef CONFIG_BT_HCIBTUSB_RTL
2715 if (id->driver_info & BTUSB_REALTEK) {
2716 hdev->setup = btrtl_setup_realtek;
2718 /* Realtek devices lose their updated firmware over suspend,
2719 * but the USB hub doesn't notice any status change.
2720 * Explicitly request a device reset on resume.
2722 set_bit(BTUSB_RESET_RESUME, &data->flags);
2726 if (id->driver_info & BTUSB_AMP) {
2727 /* AMP controllers do not support SCO packets */
2730 /* Interface numbers are hardcoded in the specification */
2731 data->isoc = usb_ifnum_to_if(data->udev, 1);
2735 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
2737 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
2738 if (!disable_scofix)
2739 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
2742 if (id->driver_info & BTUSB_BROKEN_ISOC)
2745 if (id->driver_info & BTUSB_DIGIANSWER) {
2746 data->cmdreq_type = USB_TYPE_VENDOR;
2747 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
2750 if (id->driver_info & BTUSB_CSR) {
2751 struct usb_device *udev = data->udev;
2752 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
2754 /* Old firmware would otherwise execute USB reset */
2755 if (bcdDevice < 0x117)
2756 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
2758 /* Fake CSR devices with broken commands */
2759 if (bcdDevice <= 0x100 || bcdDevice == 0x134)
2760 hdev->setup = btusb_setup_csr;
2762 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
2765 if (id->driver_info & BTUSB_SNIFFER) {
2766 struct usb_device *udev = data->udev;
2768 /* New sniffer firmware has crippled HCI interface */
2769 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
2770 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
2773 if (id->driver_info & BTUSB_INTEL_BOOT) {
2774 /* A bug in the bootloader causes that interrupt interface is
2775 * only enabled after receiving SetInterface(0, AltSetting=0).
2777 err = usb_set_interface(data->udev, 0, 0);
2779 BT_ERR("failed to set interface 0, alt 0 %d", err);
2786 err = usb_driver_claim_interface(&btusb_driver,
2794 err = hci_register_dev(hdev);
2800 usb_set_intfdata(intf, data);
2805 static void btusb_disconnect(struct usb_interface *intf)
2807 struct btusb_data *data = usb_get_intfdata(intf);
2808 struct hci_dev *hdev;
2810 BT_DBG("intf %p", intf);
2816 usb_set_intfdata(data->intf, NULL);
2819 usb_set_intfdata(data->isoc, NULL);
2821 hci_unregister_dev(hdev);
2823 if (intf == data->isoc)
2824 usb_driver_release_interface(&btusb_driver, data->intf);
2825 else if (data->isoc)
2826 usb_driver_release_interface(&btusb_driver, data->isoc);
2832 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
2834 struct btusb_data *data = usb_get_intfdata(intf);
2836 BT_DBG("intf %p", intf);
2838 if (data->suspend_count++)
2841 spin_lock_irq(&data->txlock);
2842 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
2843 set_bit(BTUSB_SUSPENDING, &data->flags);
2844 spin_unlock_irq(&data->txlock);
2846 spin_unlock_irq(&data->txlock);
2847 data->suspend_count--;
2851 cancel_work_sync(&data->work);
2853 btusb_stop_traffic(data);
2854 usb_kill_anchored_urbs(&data->tx_anchor);
2856 /* Optionally request a device reset on resume, but only when
2857 * wakeups are disabled. If wakeups are enabled we assume the
2858 * device will stay powered up throughout suspend.
2860 if (test_bit(BTUSB_RESET_RESUME, &data->flags) &&
2861 !device_may_wakeup(&data->udev->dev))
2862 data->udev->reset_resume = 1;
2867 static void play_deferred(struct btusb_data *data)
2872 while ((urb = usb_get_from_anchor(&data->deferred))) {
2873 err = usb_submit_urb(urb, GFP_ATOMIC);
2877 data->tx_in_flight++;
2879 usb_scuttle_anchored_urbs(&data->deferred);
2882 static int btusb_resume(struct usb_interface *intf)
2884 struct btusb_data *data = usb_get_intfdata(intf);
2885 struct hci_dev *hdev = data->hdev;
2888 BT_DBG("intf %p", intf);
2890 if (--data->suspend_count)
2893 if (!test_bit(HCI_RUNNING, &hdev->flags))
2896 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
2897 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
2899 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
2904 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
2905 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
2907 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
2911 btusb_submit_bulk_urb(hdev, GFP_NOIO);
2914 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2915 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
2916 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2918 btusb_submit_isoc_urb(hdev, GFP_NOIO);
2921 spin_lock_irq(&data->txlock);
2922 play_deferred(data);
2923 clear_bit(BTUSB_SUSPENDING, &data->flags);
2924 spin_unlock_irq(&data->txlock);
2925 schedule_work(&data->work);
2930 usb_scuttle_anchored_urbs(&data->deferred);
2932 spin_lock_irq(&data->txlock);
2933 clear_bit(BTUSB_SUSPENDING, &data->flags);
2934 spin_unlock_irq(&data->txlock);
2940 static struct usb_driver btusb_driver = {
2942 .probe = btusb_probe,
2943 .disconnect = btusb_disconnect,
2945 .suspend = btusb_suspend,
2946 .resume = btusb_resume,
2948 .id_table = btusb_table,
2949 .supports_autosuspend = 1,
2950 .disable_hub_initiated_lpm = 1,
2953 module_usb_driver(btusb_driver);
2955 module_param(disable_scofix, bool, 0644);
2956 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
2958 module_param(force_scofix, bool, 0644);
2959 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
2961 module_param(reset, bool, 0644);
2962 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
2964 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
2965 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
2966 MODULE_VERSION(VERSION);
2967 MODULE_LICENSE("GPL");