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, 0xe078), .driver_info = BTUSB_ATH3012 },
182 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
183 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
184 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
185 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
186 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
187 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
188 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
189 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
190 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
191 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
192 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
193 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
194 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
195 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
196 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
197 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
198 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
199 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
200 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
201 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
202 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
203 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
204 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
205 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
206 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
207 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
208 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
209 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
210 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
211 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
213 /* Atheros AR5BBU12 with sflash firmware */
214 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
216 /* Atheros AR5BBU12 with sflash firmware */
217 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
218 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
220 /* QCA ROME chipset */
221 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME },
222 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME },
224 /* Broadcom BCM2035 */
225 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
226 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
227 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
229 /* Broadcom BCM2045 */
230 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
231 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
233 /* IBM/Lenovo ThinkPad with Broadcom chip */
234 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
235 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
237 /* HP laptop with Broadcom chip */
238 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
240 /* Dell laptop with Broadcom chip */
241 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
243 /* Dell Wireless 370 and 410 devices */
244 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
245 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
247 /* Belkin F8T012 and F8T013 devices */
248 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
249 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
251 /* Asus WL-BTD202 device */
252 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
254 /* Kensington Bluetooth USB adapter */
255 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
257 /* RTX Telecom based adapters with buggy SCO support */
258 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
259 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
261 /* CONWISE Technology based adapters with buggy SCO support */
262 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
264 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
265 { USB_DEVICE(0x1300, 0x0001), .driver_info = BTUSB_SWAVE },
267 /* Digianswer devices */
268 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
269 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
271 /* CSR BlueCore Bluetooth Sniffer */
272 { USB_DEVICE(0x0a12, 0x0002),
273 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
275 /* Frontline ComProbe Bluetooth Sniffer */
276 { USB_DEVICE(0x16d3, 0x0002),
277 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
279 /* Marvell Bluetooth devices */
280 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
281 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
283 /* Intel Bluetooth devices */
284 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
285 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
286 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL },
287 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_NEW },
289 /* Other Intel Bluetooth devices */
290 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
291 .driver_info = BTUSB_IGNORE },
293 /* Realtek Bluetooth devices */
294 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
295 .driver_info = BTUSB_REALTEK },
297 /* Additional Realtek 8723AE Bluetooth devices */
298 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
299 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
301 /* Additional Realtek 8723BE Bluetooth devices */
302 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
303 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
304 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
305 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
306 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
308 /* Additional Realtek 8821AE Bluetooth devices */
309 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
310 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
311 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
312 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
313 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
315 { } /* Terminating entry */
318 #define BTUSB_MAX_ISOC_FRAMES 10
320 #define BTUSB_INTR_RUNNING 0
321 #define BTUSB_BULK_RUNNING 1
322 #define BTUSB_ISOC_RUNNING 2
323 #define BTUSB_SUSPENDING 3
324 #define BTUSB_DID_ISO_RESUME 4
325 #define BTUSB_BOOTLOADER 5
326 #define BTUSB_DOWNLOADING 6
327 #define BTUSB_FIRMWARE_LOADED 7
328 #define BTUSB_FIRMWARE_FAILED 8
329 #define BTUSB_BOOTING 9
332 struct hci_dev *hdev;
333 struct usb_device *udev;
334 struct usb_interface *intf;
335 struct usb_interface *isoc;
339 struct work_struct work;
340 struct work_struct waker;
342 struct usb_anchor deferred;
343 struct usb_anchor tx_anchor;
347 struct usb_anchor intr_anchor;
348 struct usb_anchor bulk_anchor;
349 struct usb_anchor isoc_anchor;
352 struct sk_buff *evt_skb;
353 struct sk_buff *acl_skb;
354 struct sk_buff *sco_skb;
356 struct usb_endpoint_descriptor *intr_ep;
357 struct usb_endpoint_descriptor *bulk_tx_ep;
358 struct usb_endpoint_descriptor *bulk_rx_ep;
359 struct usb_endpoint_descriptor *isoc_tx_ep;
360 struct usb_endpoint_descriptor *isoc_rx_ep;
365 unsigned int sco_num;
369 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
370 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
372 int (*setup_on_usb)(struct hci_dev *hdev);
375 static inline void btusb_free_frags(struct btusb_data *data)
379 spin_lock_irqsave(&data->rxlock, flags);
381 kfree_skb(data->evt_skb);
382 data->evt_skb = NULL;
384 kfree_skb(data->acl_skb);
385 data->acl_skb = NULL;
387 kfree_skb(data->sco_skb);
388 data->sco_skb = NULL;
390 spin_unlock_irqrestore(&data->rxlock, flags);
393 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
398 spin_lock(&data->rxlock);
405 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
411 bt_cb(skb)->pkt_type = HCI_EVENT_PKT;
412 bt_cb(skb)->expect = HCI_EVENT_HDR_SIZE;
415 len = min_t(uint, bt_cb(skb)->expect, count);
416 memcpy(skb_put(skb, len), buffer, len);
420 bt_cb(skb)->expect -= len;
422 if (skb->len == HCI_EVENT_HDR_SIZE) {
423 /* Complete event header */
424 bt_cb(skb)->expect = hci_event_hdr(skb)->plen;
426 if (skb_tailroom(skb) < bt_cb(skb)->expect) {
435 if (bt_cb(skb)->expect == 0) {
437 data->recv_event(data->hdev, skb);
443 spin_unlock(&data->rxlock);
448 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
453 spin_lock(&data->rxlock);
460 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
466 bt_cb(skb)->pkt_type = HCI_ACLDATA_PKT;
467 bt_cb(skb)->expect = HCI_ACL_HDR_SIZE;
470 len = min_t(uint, bt_cb(skb)->expect, count);
471 memcpy(skb_put(skb, len), buffer, len);
475 bt_cb(skb)->expect -= len;
477 if (skb->len == HCI_ACL_HDR_SIZE) {
478 __le16 dlen = hci_acl_hdr(skb)->dlen;
480 /* Complete ACL header */
481 bt_cb(skb)->expect = __le16_to_cpu(dlen);
483 if (skb_tailroom(skb) < bt_cb(skb)->expect) {
492 if (bt_cb(skb)->expect == 0) {
494 hci_recv_frame(data->hdev, skb);
500 spin_unlock(&data->rxlock);
505 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
510 spin_lock(&data->rxlock);
517 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
523 bt_cb(skb)->pkt_type = HCI_SCODATA_PKT;
524 bt_cb(skb)->expect = HCI_SCO_HDR_SIZE;
527 len = min_t(uint, bt_cb(skb)->expect, count);
528 memcpy(skb_put(skb, len), buffer, len);
532 bt_cb(skb)->expect -= len;
534 if (skb->len == HCI_SCO_HDR_SIZE) {
535 /* Complete SCO header */
536 bt_cb(skb)->expect = hci_sco_hdr(skb)->dlen;
538 if (skb_tailroom(skb) < bt_cb(skb)->expect) {
547 if (bt_cb(skb)->expect == 0) {
549 hci_recv_frame(data->hdev, skb);
555 spin_unlock(&data->rxlock);
560 static void btusb_intr_complete(struct urb *urb)
562 struct hci_dev *hdev = urb->context;
563 struct btusb_data *data = hci_get_drvdata(hdev);
566 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
569 if (!test_bit(HCI_RUNNING, &hdev->flags))
572 if (urb->status == 0) {
573 hdev->stat.byte_rx += urb->actual_length;
575 if (btusb_recv_intr(data, urb->transfer_buffer,
576 urb->actual_length) < 0) {
577 BT_ERR("%s corrupted event packet", hdev->name);
580 } else if (urb->status == -ENOENT) {
581 /* Avoid suspend failed when usb_kill_urb */
585 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
588 usb_mark_last_busy(data->udev);
589 usb_anchor_urb(urb, &data->intr_anchor);
591 err = usb_submit_urb(urb, GFP_ATOMIC);
593 /* -EPERM: urb is being killed;
594 * -ENODEV: device got disconnected */
595 if (err != -EPERM && err != -ENODEV)
596 BT_ERR("%s urb %p failed to resubmit (%d)",
597 hdev->name, urb, -err);
598 usb_unanchor_urb(urb);
602 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
604 struct btusb_data *data = hci_get_drvdata(hdev);
610 BT_DBG("%s", hdev->name);
615 urb = usb_alloc_urb(0, mem_flags);
619 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
621 buf = kmalloc(size, mem_flags);
627 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
629 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
630 btusb_intr_complete, hdev, data->intr_ep->bInterval);
632 urb->transfer_flags |= URB_FREE_BUFFER;
634 usb_anchor_urb(urb, &data->intr_anchor);
636 err = usb_submit_urb(urb, mem_flags);
638 if (err != -EPERM && err != -ENODEV)
639 BT_ERR("%s urb %p submission failed (%d)",
640 hdev->name, urb, -err);
641 usb_unanchor_urb(urb);
649 static void btusb_bulk_complete(struct urb *urb)
651 struct hci_dev *hdev = urb->context;
652 struct btusb_data *data = hci_get_drvdata(hdev);
655 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
658 if (!test_bit(HCI_RUNNING, &hdev->flags))
661 if (urb->status == 0) {
662 hdev->stat.byte_rx += urb->actual_length;
664 if (data->recv_bulk(data, urb->transfer_buffer,
665 urb->actual_length) < 0) {
666 BT_ERR("%s corrupted ACL packet", hdev->name);
669 } else if (urb->status == -ENOENT) {
670 /* Avoid suspend failed when usb_kill_urb */
674 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
677 usb_anchor_urb(urb, &data->bulk_anchor);
678 usb_mark_last_busy(data->udev);
680 err = usb_submit_urb(urb, GFP_ATOMIC);
682 /* -EPERM: urb is being killed;
683 * -ENODEV: device got disconnected */
684 if (err != -EPERM && err != -ENODEV)
685 BT_ERR("%s urb %p failed to resubmit (%d)",
686 hdev->name, urb, -err);
687 usb_unanchor_urb(urb);
691 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
693 struct btusb_data *data = hci_get_drvdata(hdev);
697 int err, size = HCI_MAX_FRAME_SIZE;
699 BT_DBG("%s", hdev->name);
701 if (!data->bulk_rx_ep)
704 urb = usb_alloc_urb(0, mem_flags);
708 buf = kmalloc(size, mem_flags);
714 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
716 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
717 btusb_bulk_complete, hdev);
719 urb->transfer_flags |= URB_FREE_BUFFER;
721 usb_mark_last_busy(data->udev);
722 usb_anchor_urb(urb, &data->bulk_anchor);
724 err = usb_submit_urb(urb, mem_flags);
726 if (err != -EPERM && err != -ENODEV)
727 BT_ERR("%s urb %p submission failed (%d)",
728 hdev->name, urb, -err);
729 usb_unanchor_urb(urb);
737 static void btusb_isoc_complete(struct urb *urb)
739 struct hci_dev *hdev = urb->context;
740 struct btusb_data *data = hci_get_drvdata(hdev);
743 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
746 if (!test_bit(HCI_RUNNING, &hdev->flags))
749 if (urb->status == 0) {
750 for (i = 0; i < urb->number_of_packets; i++) {
751 unsigned int offset = urb->iso_frame_desc[i].offset;
752 unsigned int length = urb->iso_frame_desc[i].actual_length;
754 if (urb->iso_frame_desc[i].status)
757 hdev->stat.byte_rx += length;
759 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
761 BT_ERR("%s corrupted SCO packet", hdev->name);
765 } else if (urb->status == -ENOENT) {
766 /* Avoid suspend failed when usb_kill_urb */
770 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
773 usb_anchor_urb(urb, &data->isoc_anchor);
775 err = usb_submit_urb(urb, GFP_ATOMIC);
777 /* -EPERM: urb is being killed;
778 * -ENODEV: device got disconnected */
779 if (err != -EPERM && err != -ENODEV)
780 BT_ERR("%s urb %p failed to resubmit (%d)",
781 hdev->name, urb, -err);
782 usb_unanchor_urb(urb);
786 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
790 BT_DBG("len %d mtu %d", len, mtu);
792 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
793 i++, offset += mtu, len -= mtu) {
794 urb->iso_frame_desc[i].offset = offset;
795 urb->iso_frame_desc[i].length = mtu;
798 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
799 urb->iso_frame_desc[i].offset = offset;
800 urb->iso_frame_desc[i].length = len;
804 urb->number_of_packets = i;
807 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
809 struct btusb_data *data = hci_get_drvdata(hdev);
815 BT_DBG("%s", hdev->name);
817 if (!data->isoc_rx_ep)
820 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
824 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
825 BTUSB_MAX_ISOC_FRAMES;
827 buf = kmalloc(size, mem_flags);
833 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
835 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
836 hdev, data->isoc_rx_ep->bInterval);
838 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
840 __fill_isoc_descriptor(urb, size,
841 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
843 usb_anchor_urb(urb, &data->isoc_anchor);
845 err = usb_submit_urb(urb, mem_flags);
847 if (err != -EPERM && err != -ENODEV)
848 BT_ERR("%s urb %p submission failed (%d)",
849 hdev->name, urb, -err);
850 usb_unanchor_urb(urb);
858 static void btusb_tx_complete(struct urb *urb)
860 struct sk_buff *skb = urb->context;
861 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
862 struct btusb_data *data = hci_get_drvdata(hdev);
864 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
867 if (!test_bit(HCI_RUNNING, &hdev->flags))
871 hdev->stat.byte_tx += urb->transfer_buffer_length;
876 spin_lock(&data->txlock);
877 data->tx_in_flight--;
878 spin_unlock(&data->txlock);
880 kfree(urb->setup_packet);
885 static void btusb_isoc_tx_complete(struct urb *urb)
887 struct sk_buff *skb = urb->context;
888 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
890 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
893 if (!test_bit(HCI_RUNNING, &hdev->flags))
897 hdev->stat.byte_tx += urb->transfer_buffer_length;
902 kfree(urb->setup_packet);
907 static int btusb_open(struct hci_dev *hdev)
909 struct btusb_data *data = hci_get_drvdata(hdev);
912 BT_DBG("%s", hdev->name);
914 /* Patching USB firmware files prior to starting any URBs of HCI path
915 * It is more safe to use USB bulk channel for downloading USB patch
917 if (data->setup_on_usb) {
918 err = data->setup_on_usb(hdev);
923 err = usb_autopm_get_interface(data->intf);
927 data->intf->needs_remote_wakeup = 1;
929 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
932 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
935 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
939 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
941 usb_kill_anchored_urbs(&data->intr_anchor);
945 set_bit(BTUSB_BULK_RUNNING, &data->flags);
946 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
949 usb_autopm_put_interface(data->intf);
953 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
954 clear_bit(HCI_RUNNING, &hdev->flags);
955 usb_autopm_put_interface(data->intf);
959 static void btusb_stop_traffic(struct btusb_data *data)
961 usb_kill_anchored_urbs(&data->intr_anchor);
962 usb_kill_anchored_urbs(&data->bulk_anchor);
963 usb_kill_anchored_urbs(&data->isoc_anchor);
966 static int btusb_close(struct hci_dev *hdev)
968 struct btusb_data *data = hci_get_drvdata(hdev);
971 BT_DBG("%s", hdev->name);
973 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
976 cancel_work_sync(&data->work);
977 cancel_work_sync(&data->waker);
979 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
980 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
981 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
983 btusb_stop_traffic(data);
984 btusb_free_frags(data);
986 err = usb_autopm_get_interface(data->intf);
990 data->intf->needs_remote_wakeup = 0;
991 usb_autopm_put_interface(data->intf);
994 usb_scuttle_anchored_urbs(&data->deferred);
998 static int btusb_flush(struct hci_dev *hdev)
1000 struct btusb_data *data = hci_get_drvdata(hdev);
1002 BT_DBG("%s", hdev->name);
1004 usb_kill_anchored_urbs(&data->tx_anchor);
1005 btusb_free_frags(data);
1010 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
1012 struct btusb_data *data = hci_get_drvdata(hdev);
1013 struct usb_ctrlrequest *dr;
1017 urb = usb_alloc_urb(0, GFP_KERNEL);
1019 return ERR_PTR(-ENOMEM);
1021 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
1024 return ERR_PTR(-ENOMEM);
1027 dr->bRequestType = data->cmdreq_type;
1028 dr->bRequest = data->cmdreq;
1031 dr->wLength = __cpu_to_le16(skb->len);
1033 pipe = usb_sndctrlpipe(data->udev, 0x00);
1035 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
1036 skb->data, skb->len, btusb_tx_complete, skb);
1038 skb->dev = (void *)hdev;
1043 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
1045 struct btusb_data *data = hci_get_drvdata(hdev);
1049 if (!data->bulk_tx_ep)
1050 return ERR_PTR(-ENODEV);
1052 urb = usb_alloc_urb(0, GFP_KERNEL);
1054 return ERR_PTR(-ENOMEM);
1056 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
1058 usb_fill_bulk_urb(urb, data->udev, pipe,
1059 skb->data, skb->len, btusb_tx_complete, skb);
1061 skb->dev = (void *)hdev;
1066 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
1068 struct btusb_data *data = hci_get_drvdata(hdev);
1072 if (!data->isoc_tx_ep)
1073 return ERR_PTR(-ENODEV);
1075 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
1077 return ERR_PTR(-ENOMEM);
1079 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
1081 usb_fill_int_urb(urb, data->udev, pipe,
1082 skb->data, skb->len, btusb_isoc_tx_complete,
1083 skb, data->isoc_tx_ep->bInterval);
1085 urb->transfer_flags = URB_ISO_ASAP;
1087 __fill_isoc_descriptor(urb, skb->len,
1088 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
1090 skb->dev = (void *)hdev;
1095 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
1097 struct btusb_data *data = hci_get_drvdata(hdev);
1100 usb_anchor_urb(urb, &data->tx_anchor);
1102 err = usb_submit_urb(urb, GFP_KERNEL);
1104 if (err != -EPERM && err != -ENODEV)
1105 BT_ERR("%s urb %p submission failed (%d)",
1106 hdev->name, urb, -err);
1107 kfree(urb->setup_packet);
1108 usb_unanchor_urb(urb);
1110 usb_mark_last_busy(data->udev);
1117 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
1119 struct btusb_data *data = hci_get_drvdata(hdev);
1120 unsigned long flags;
1123 spin_lock_irqsave(&data->txlock, flags);
1124 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
1126 data->tx_in_flight++;
1127 spin_unlock_irqrestore(&data->txlock, flags);
1130 return submit_tx_urb(hdev, urb);
1132 usb_anchor_urb(urb, &data->deferred);
1133 schedule_work(&data->waker);
1139 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
1143 BT_DBG("%s", hdev->name);
1145 if (!test_bit(HCI_RUNNING, &hdev->flags))
1148 switch (bt_cb(skb)->pkt_type) {
1149 case HCI_COMMAND_PKT:
1150 urb = alloc_ctrl_urb(hdev, skb);
1152 return PTR_ERR(urb);
1154 hdev->stat.cmd_tx++;
1155 return submit_or_queue_tx_urb(hdev, urb);
1157 case HCI_ACLDATA_PKT:
1158 urb = alloc_bulk_urb(hdev, skb);
1160 return PTR_ERR(urb);
1162 hdev->stat.acl_tx++;
1163 return submit_or_queue_tx_urb(hdev, urb);
1165 case HCI_SCODATA_PKT:
1166 if (hci_conn_num(hdev, SCO_LINK) < 1)
1169 urb = alloc_isoc_urb(hdev, skb);
1171 return PTR_ERR(urb);
1173 hdev->stat.sco_tx++;
1174 return submit_tx_urb(hdev, urb);
1180 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
1182 struct btusb_data *data = hci_get_drvdata(hdev);
1184 BT_DBG("%s evt %d", hdev->name, evt);
1186 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
1187 data->sco_num = hci_conn_num(hdev, SCO_LINK);
1188 schedule_work(&data->work);
1192 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
1194 struct btusb_data *data = hci_get_drvdata(hdev);
1195 struct usb_interface *intf = data->isoc;
1196 struct usb_endpoint_descriptor *ep_desc;
1202 err = usb_set_interface(data->udev, 1, altsetting);
1204 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
1208 data->isoc_altsetting = altsetting;
1210 data->isoc_tx_ep = NULL;
1211 data->isoc_rx_ep = NULL;
1213 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1214 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1216 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
1217 data->isoc_tx_ep = ep_desc;
1221 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
1222 data->isoc_rx_ep = ep_desc;
1227 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
1228 BT_ERR("%s invalid SCO descriptors", hdev->name);
1235 static void btusb_work(struct work_struct *work)
1237 struct btusb_data *data = container_of(work, struct btusb_data, work);
1238 struct hci_dev *hdev = data->hdev;
1242 if (data->sco_num > 0) {
1243 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
1244 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
1246 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1247 usb_kill_anchored_urbs(&data->isoc_anchor);
1251 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
1254 if (hdev->voice_setting & 0x0020) {
1255 static const int alts[3] = { 2, 4, 5 };
1257 new_alts = alts[data->sco_num - 1];
1259 new_alts = data->sco_num;
1262 if (data->isoc_altsetting != new_alts) {
1263 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1264 usb_kill_anchored_urbs(&data->isoc_anchor);
1266 if (__set_isoc_interface(hdev, new_alts) < 0)
1270 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1271 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
1272 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1274 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
1277 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1278 usb_kill_anchored_urbs(&data->isoc_anchor);
1280 __set_isoc_interface(hdev, 0);
1281 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
1282 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
1286 static void btusb_waker(struct work_struct *work)
1288 struct btusb_data *data = container_of(work, struct btusb_data, waker);
1291 err = usb_autopm_get_interface(data->intf);
1295 usb_autopm_put_interface(data->intf);
1298 static struct sk_buff *btusb_read_local_version(struct hci_dev *hdev)
1300 struct sk_buff *skb;
1302 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1305 BT_ERR("%s: HCI_OP_READ_LOCAL_VERSION failed (%ld)",
1306 hdev->name, PTR_ERR(skb));
1310 if (skb->len != sizeof(struct hci_rp_read_local_version)) {
1311 BT_ERR("%s: HCI_OP_READ_LOCAL_VERSION event length mismatch",
1314 return ERR_PTR(-EIO);
1320 static int btusb_setup_bcm92035(struct hci_dev *hdev)
1322 struct sk_buff *skb;
1325 BT_DBG("%s", hdev->name);
1327 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
1329 BT_ERR("BCM92035 command failed (%ld)", -PTR_ERR(skb));
1336 static int btusb_setup_csr(struct hci_dev *hdev)
1338 struct hci_rp_read_local_version *rp;
1339 struct sk_buff *skb;
1342 BT_DBG("%s", hdev->name);
1344 skb = btusb_read_local_version(hdev);
1346 return -PTR_ERR(skb);
1348 rp = (struct hci_rp_read_local_version *)skb->data;
1351 if (le16_to_cpu(rp->manufacturer) != 10) {
1352 /* Clear the reset quirk since this is not an actual
1353 * early Bluetooth 1.1 device from CSR.
1355 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1357 /* These fake CSR controllers have all a broken
1358 * stored link key handling and so just disable it.
1360 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY,
1365 ret = -bt_to_errno(rp->status);
1372 #define RTL_FRAG_LEN 252
1374 struct rtl_download_cmd {
1376 __u8 data[RTL_FRAG_LEN];
1379 struct rtl_download_response {
1384 struct rtl_rom_version_evt {
1389 struct rtl_epatch_header {
1395 #define RTL_EPATCH_SIGNATURE "Realtech"
1396 #define RTL_ROM_LMP_3499 0x3499
1397 #define RTL_ROM_LMP_8723A 0x1200
1398 #define RTL_ROM_LMP_8723B 0x8723
1399 #define RTL_ROM_LMP_8821A 0x8821
1400 #define RTL_ROM_LMP_8761A 0x8761
1402 static int rtl_read_rom_version(struct hci_dev *hdev, u8 *version)
1404 struct rtl_rom_version_evt *rom_version;
1405 struct sk_buff *skb;
1408 /* Read RTL ROM version command */
1409 skb = __hci_cmd_sync(hdev, 0xfc6d, 0, NULL, HCI_INIT_TIMEOUT);
1411 BT_ERR("%s: Read ROM version failed (%ld)",
1412 hdev->name, PTR_ERR(skb));
1413 return PTR_ERR(skb);
1416 if (skb->len != sizeof(*rom_version)) {
1417 BT_ERR("%s: RTL version event length mismatch", hdev->name);
1422 rom_version = (struct rtl_rom_version_evt *)skb->data;
1423 BT_INFO("%s: rom_version status=%x version=%x",
1424 hdev->name, rom_version->status, rom_version->version);
1426 ret = rom_version->status;
1428 *version = rom_version->version;
1434 static int rtl8723b_parse_firmware(struct hci_dev *hdev, u16 lmp_subver,
1435 const struct firmware *fw,
1436 unsigned char **_buf)
1438 const u8 extension_sig[] = { 0x51, 0x04, 0xfd, 0x77 };
1439 struct rtl_epatch_header *epatch_info;
1443 u8 opcode, length, data, rom_version = 0;
1444 int project_id = -1;
1445 const unsigned char *fwptr, *chip_id_base;
1446 const unsigned char *patch_length_base, *patch_offset_base;
1447 u32 patch_offset = 0;
1448 u16 patch_length, num_patches;
1449 const u16 project_id_to_lmp_subver[] = {
1456 ret = rtl_read_rom_version(hdev, &rom_version);
1458 return -bt_to_errno(ret);
1460 min_size = sizeof(struct rtl_epatch_header) + sizeof(extension_sig) + 3;
1461 if (fw->size < min_size)
1464 fwptr = fw->data + fw->size - sizeof(extension_sig);
1465 if (memcmp(fwptr, extension_sig, sizeof(extension_sig)) != 0) {
1466 BT_ERR("%s: extension section signature mismatch", hdev->name);
1470 /* Loop from the end of the firmware parsing instructions, until
1471 * we find an instruction that identifies the "project ID" for the
1472 * hardware supported by this firwmare file.
1473 * Once we have that, we double-check that that project_id is suitable
1474 * for the hardware we are working with.
1476 while (fwptr >= fw->data + (sizeof(struct rtl_epatch_header) + 3)) {
1481 BT_DBG("check op=%x len=%x data=%x", opcode, length, data);
1483 if (opcode == 0xff) /* EOF */
1487 BT_ERR("%s: found instruction with length 0",
1492 if (opcode == 0 && length == 1) {
1500 if (project_id < 0) {
1501 BT_ERR("%s: failed to find version instruction", hdev->name);
1505 if (project_id >= ARRAY_SIZE(project_id_to_lmp_subver)) {
1506 BT_ERR("%s: unknown project id %d", hdev->name, project_id);
1510 if (lmp_subver != project_id_to_lmp_subver[project_id]) {
1511 BT_ERR("%s: firmware is for %x but this is a %x", hdev->name,
1512 project_id_to_lmp_subver[project_id], lmp_subver);
1516 epatch_info = (struct rtl_epatch_header *)fw->data;
1517 if (memcmp(epatch_info->signature, RTL_EPATCH_SIGNATURE, 8) != 0) {
1518 BT_ERR("%s: bad EPATCH signature", hdev->name);
1522 num_patches = le16_to_cpu(epatch_info->num_patches);
1523 BT_DBG("fw_version=%x, num_patches=%d",
1524 le32_to_cpu(epatch_info->fw_version), num_patches);
1526 /* After the rtl_epatch_header there is a funky patch metadata section.
1527 * Assuming 2 patches, the layout is:
1528 * ChipID1 ChipID2 PatchLength1 PatchLength2 PatchOffset1 PatchOffset2
1530 * Find the right patch for this chip.
1532 min_size += 8 * num_patches;
1533 if (fw->size < min_size)
1536 chip_id_base = fw->data + sizeof(struct rtl_epatch_header);
1537 patch_length_base = chip_id_base + (sizeof(u16) * num_patches);
1538 patch_offset_base = patch_length_base + (sizeof(u16) * num_patches);
1539 for (i = 0; i < num_patches; i++) {
1540 u16 chip_id = get_unaligned_le16(chip_id_base +
1542 if (chip_id == rom_version + 1) {
1543 patch_length = get_unaligned_le16(patch_length_base +
1545 patch_offset = get_unaligned_le32(patch_offset_base +
1551 if (!patch_offset) {
1552 BT_ERR("%s: didn't find patch for chip id %d",
1553 hdev->name, rom_version);
1557 BT_DBG("length=%x offset=%x index %d", patch_length, patch_offset, i);
1558 min_size = patch_offset + patch_length;
1559 if (fw->size < min_size)
1562 /* Copy the firmware into a new buffer and write the version at
1566 buf = kmemdup(fw->data + patch_offset, patch_length, GFP_KERNEL);
1570 memcpy(buf + patch_length - 4, &epatch_info->fw_version, 4);
1576 static int rtl_download_firmware(struct hci_dev *hdev,
1577 const unsigned char *data, int fw_len)
1579 struct rtl_download_cmd *dl_cmd;
1580 int frag_num = fw_len / RTL_FRAG_LEN + 1;
1581 int frag_len = RTL_FRAG_LEN;
1585 dl_cmd = kmalloc(sizeof(struct rtl_download_cmd), GFP_KERNEL);
1589 for (i = 0; i < frag_num; i++) {
1590 struct rtl_download_response *dl_resp;
1591 struct sk_buff *skb;
1593 BT_DBG("download fw (%d/%d)", i, frag_num);
1596 if (i == (frag_num - 1)) {
1597 dl_cmd->index |= 0x80; /* data end */
1598 frag_len = fw_len % RTL_FRAG_LEN;
1600 memcpy(dl_cmd->data, data, frag_len);
1602 /* Send download command */
1603 skb = __hci_cmd_sync(hdev, 0xfc20, frag_len + 1, dl_cmd,
1606 BT_ERR("%s: download fw command failed (%ld)",
1607 hdev->name, PTR_ERR(skb));
1608 ret = -PTR_ERR(skb);
1612 if (skb->len != sizeof(*dl_resp)) {
1613 BT_ERR("%s: download fw event length mismatch",
1620 dl_resp = (struct rtl_download_response *)skb->data;
1621 if (dl_resp->status != 0) {
1623 ret = bt_to_errno(dl_resp->status);
1628 data += RTL_FRAG_LEN;
1636 static int btusb_setup_rtl8723a(struct hci_dev *hdev)
1638 struct btusb_data *data = dev_get_drvdata(&hdev->dev);
1639 struct usb_device *udev = interface_to_usbdev(data->intf);
1640 const struct firmware *fw;
1643 BT_INFO("%s: rtl: loading rtl_bt/rtl8723a_fw.bin", hdev->name);
1644 ret = request_firmware(&fw, "rtl_bt/rtl8723a_fw.bin", &udev->dev);
1646 BT_ERR("%s: Failed to load rtl_bt/rtl8723a_fw.bin", hdev->name);
1655 /* Check that the firmware doesn't have the epatch signature
1656 * (which is only for RTL8723B and newer).
1658 if (!memcmp(fw->data, RTL_EPATCH_SIGNATURE, 8)) {
1659 BT_ERR("%s: unexpected EPATCH signature!", hdev->name);
1664 ret = rtl_download_firmware(hdev, fw->data, fw->size);
1667 release_firmware(fw);
1671 static int btusb_setup_rtl8723b(struct hci_dev *hdev, u16 lmp_subver,
1672 const char *fw_name)
1674 struct btusb_data *data = dev_get_drvdata(&hdev->dev);
1675 struct usb_device *udev = interface_to_usbdev(data->intf);
1676 unsigned char *fw_data = NULL;
1677 const struct firmware *fw;
1680 BT_INFO("%s: rtl: loading %s", hdev->name, fw_name);
1681 ret = request_firmware(&fw, fw_name, &udev->dev);
1683 BT_ERR("%s: Failed to load %s", hdev->name, fw_name);
1687 ret = rtl8723b_parse_firmware(hdev, lmp_subver, fw, &fw_data);
1691 ret = rtl_download_firmware(hdev, fw_data, ret);
1697 release_firmware(fw);
1701 static int btusb_setup_realtek(struct hci_dev *hdev)
1703 struct sk_buff *skb;
1704 struct hci_rp_read_local_version *resp;
1707 skb = btusb_read_local_version(hdev);
1709 return -PTR_ERR(skb);
1711 resp = (struct hci_rp_read_local_version *)skb->data;
1712 BT_INFO("%s: rtl: examining hci_ver=%02x hci_rev=%04x lmp_ver=%02x "
1713 "lmp_subver=%04x", hdev->name, resp->hci_ver, resp->hci_rev,
1714 resp->lmp_ver, resp->lmp_subver);
1716 lmp_subver = le16_to_cpu(resp->lmp_subver);
1719 /* Match a set of subver values that correspond to stock firmware,
1720 * which is not compatible with standard btusb.
1721 * If matched, upload an alternative firmware that does conform to
1722 * standard btusb. Once that firmware is uploaded, the subver changes
1723 * to a different value.
1725 switch (lmp_subver) {
1726 case RTL_ROM_LMP_8723A:
1727 case RTL_ROM_LMP_3499:
1728 return btusb_setup_rtl8723a(hdev);
1729 case RTL_ROM_LMP_8723B:
1730 return btusb_setup_rtl8723b(hdev, lmp_subver,
1731 "rtl_bt/rtl8723b_fw.bin");
1732 case RTL_ROM_LMP_8821A:
1733 return btusb_setup_rtl8723b(hdev, lmp_subver,
1734 "rtl_bt/rtl8821a_fw.bin");
1735 case RTL_ROM_LMP_8761A:
1736 return btusb_setup_rtl8723b(hdev, lmp_subver,
1737 "rtl_bt/rtl8761a_fw.bin");
1739 BT_INFO("rtl: assuming no firmware upload needed.");
1744 static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev,
1745 struct intel_version *ver)
1747 const struct firmware *fw;
1751 snprintf(fwname, sizeof(fwname),
1752 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq",
1753 ver->hw_platform, ver->hw_variant, ver->hw_revision,
1754 ver->fw_variant, ver->fw_revision, ver->fw_build_num,
1755 ver->fw_build_ww, ver->fw_build_yy);
1757 ret = request_firmware(&fw, fwname, &hdev->dev);
1759 if (ret == -EINVAL) {
1760 BT_ERR("%s Intel firmware file request failed (%d)",
1765 BT_ERR("%s failed to open Intel firmware file: %s(%d)",
1766 hdev->name, fwname, ret);
1768 /* If the correct firmware patch file is not found, use the
1769 * default firmware patch file instead
1771 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq",
1772 ver->hw_platform, ver->hw_variant);
1773 if (request_firmware(&fw, fwname, &hdev->dev) < 0) {
1774 BT_ERR("%s failed to open default Intel fw file: %s",
1775 hdev->name, fwname);
1780 BT_INFO("%s: Intel Bluetooth firmware file: %s", hdev->name, fwname);
1785 static int btusb_setup_intel_patching(struct hci_dev *hdev,
1786 const struct firmware *fw,
1787 const u8 **fw_ptr, int *disable_patch)
1789 struct sk_buff *skb;
1790 struct hci_command_hdr *cmd;
1791 const u8 *cmd_param;
1792 struct hci_event_hdr *evt = NULL;
1793 const u8 *evt_param = NULL;
1794 int remain = fw->size - (*fw_ptr - fw->data);
1796 /* The first byte indicates the types of the patch command or event.
1797 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes
1798 * in the current firmware buffer doesn't start with 0x01 or
1799 * the size of remain buffer is smaller than HCI command header,
1800 * the firmware file is corrupted and it should stop the patching
1803 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) {
1804 BT_ERR("%s Intel fw corrupted: invalid cmd read", hdev->name);
1810 cmd = (struct hci_command_hdr *)(*fw_ptr);
1811 *fw_ptr += sizeof(*cmd);
1812 remain -= sizeof(*cmd);
1814 /* Ensure that the remain firmware data is long enough than the length
1815 * of command parameter. If not, the firmware file is corrupted.
1817 if (remain < cmd->plen) {
1818 BT_ERR("%s Intel fw corrupted: invalid cmd len", hdev->name);
1822 /* If there is a command that loads a patch in the firmware
1823 * file, then enable the patch upon success, otherwise just
1824 * disable the manufacturer mode, for example patch activation
1825 * is not required when the default firmware patch file is used
1826 * because there are no patch data to load.
1828 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e)
1831 cmd_param = *fw_ptr;
1832 *fw_ptr += cmd->plen;
1833 remain -= cmd->plen;
1835 /* This reads the expected events when the above command is sent to the
1836 * device. Some vendor commands expects more than one events, for
1837 * example command status event followed by vendor specific event.
1838 * For this case, it only keeps the last expected event. so the command
1839 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of
1840 * last expected event.
1842 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) {
1846 evt = (struct hci_event_hdr *)(*fw_ptr);
1847 *fw_ptr += sizeof(*evt);
1848 remain -= sizeof(*evt);
1850 if (remain < evt->plen) {
1851 BT_ERR("%s Intel fw corrupted: invalid evt len",
1856 evt_param = *fw_ptr;
1857 *fw_ptr += evt->plen;
1858 remain -= evt->plen;
1861 /* Every HCI commands in the firmware file has its correspond event.
1862 * If event is not found or remain is smaller than zero, the firmware
1863 * file is corrupted.
1865 if (!evt || !evt_param || remain < 0) {
1866 BT_ERR("%s Intel fw corrupted: invalid evt read", hdev->name);
1870 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen,
1871 cmd_param, evt->evt, HCI_INIT_TIMEOUT);
1873 BT_ERR("%s sending Intel patch command (0x%4.4x) failed (%ld)",
1874 hdev->name, cmd->opcode, PTR_ERR(skb));
1875 return PTR_ERR(skb);
1878 /* It ensures that the returned event matches the event data read from
1879 * the firmware file. At fist, it checks the length and then
1880 * the contents of the event.
1882 if (skb->len != evt->plen) {
1883 BT_ERR("%s mismatch event length (opcode 0x%4.4x)", hdev->name,
1884 le16_to_cpu(cmd->opcode));
1889 if (memcmp(skb->data, evt_param, evt->plen)) {
1890 BT_ERR("%s mismatch event parameter (opcode 0x%4.4x)",
1891 hdev->name, le16_to_cpu(cmd->opcode));
1900 static int btusb_setup_intel(struct hci_dev *hdev)
1902 struct sk_buff *skb;
1903 const struct firmware *fw;
1906 struct intel_version *ver;
1908 const u8 mfg_enable[] = { 0x01, 0x00 };
1909 const u8 mfg_disable[] = { 0x00, 0x00 };
1910 const u8 mfg_reset_deactivate[] = { 0x00, 0x01 };
1911 const u8 mfg_reset_activate[] = { 0x00, 0x02 };
1913 BT_DBG("%s", hdev->name);
1915 /* The controller has a bug with the first HCI command sent to it
1916 * returning number of completed commands as zero. This would stall the
1917 * command processing in the Bluetooth core.
1919 * As a workaround, send HCI Reset command first which will reset the
1920 * number of completed commands and allow normal command processing
1923 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1925 BT_ERR("%s sending initial HCI reset command failed (%ld)",
1926 hdev->name, PTR_ERR(skb));
1927 return PTR_ERR(skb);
1931 /* Read Intel specific controller version first to allow selection of
1932 * which firmware file to load.
1934 * The returned information are hardware variant and revision plus
1935 * firmware variant, revision and build number.
1937 skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT);
1939 BT_ERR("%s reading Intel fw version command failed (%ld)",
1940 hdev->name, PTR_ERR(skb));
1941 return PTR_ERR(skb);
1944 if (skb->len != sizeof(*ver)) {
1945 BT_ERR("%s Intel version event length mismatch", hdev->name);
1950 ver = (struct intel_version *)skb->data;
1952 BT_ERR("%s Intel fw version event failed (%02x)", hdev->name,
1955 return -bt_to_errno(ver->status);
1958 BT_INFO("%s: read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
1959 hdev->name, ver->hw_platform, ver->hw_variant,
1960 ver->hw_revision, ver->fw_variant, ver->fw_revision,
1961 ver->fw_build_num, ver->fw_build_ww, ver->fw_build_yy,
1964 /* fw_patch_num indicates the version of patch the device currently
1965 * have. If there is no patch data in the device, it is always 0x00.
1966 * So, if it is other than 0x00, no need to patch the deivce again.
1968 if (ver->fw_patch_num) {
1969 BT_INFO("%s: Intel device is already patched. patch num: %02x",
1970 hdev->name, ver->fw_patch_num);
1972 btintel_check_bdaddr(hdev);
1976 /* Opens the firmware patch file based on the firmware version read
1977 * from the controller. If it fails to open the matching firmware
1978 * patch file, it tries to open the default firmware patch file.
1979 * If no patch file is found, allow the device to operate without
1982 fw = btusb_setup_intel_get_fw(hdev, ver);
1985 btintel_check_bdaddr(hdev);
1990 /* This Intel specific command enables the manufacturer mode of the
1993 * Only while this mode is enabled, the driver can download the
1994 * firmware patch data and configuration parameters.
1996 skb = __hci_cmd_sync(hdev, 0xfc11, 2, mfg_enable, HCI_INIT_TIMEOUT);
1998 BT_ERR("%s entering Intel manufacturer mode failed (%ld)",
1999 hdev->name, PTR_ERR(skb));
2000 release_firmware(fw);
2001 return PTR_ERR(skb);
2005 u8 evt_status = skb->data[0];
2007 BT_ERR("%s enable Intel manufacturer mode event failed (%02x)",
2008 hdev->name, evt_status);
2010 release_firmware(fw);
2011 return -bt_to_errno(evt_status);
2017 /* The firmware data file consists of list of Intel specific HCI
2018 * commands and its expected events. The first byte indicates the
2019 * type of the message, either HCI command or HCI event.
2021 * It reads the command and its expected event from the firmware file,
2022 * and send to the controller. Once __hci_cmd_sync_ev() returns,
2023 * the returned event is compared with the event read from the firmware
2024 * file and it will continue until all the messages are downloaded to
2027 * Once the firmware patching is completed successfully,
2028 * the manufacturer mode is disabled with reset and activating the
2031 * If the firmware patching fails, the manufacturer mode is
2032 * disabled with reset and deactivating the patch.
2034 * If the default patch file is used, no reset is done when disabling
2037 while (fw->size > fw_ptr - fw->data) {
2040 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr,
2043 goto exit_mfg_deactivate;
2046 release_firmware(fw);
2049 goto exit_mfg_disable;
2051 /* Patching completed successfully and disable the manufacturer mode
2052 * with reset and activate the downloaded firmware patches.
2054 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_activate),
2055 mfg_reset_activate, HCI_INIT_TIMEOUT);
2057 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
2058 hdev->name, PTR_ERR(skb));
2059 return PTR_ERR(skb);
2063 BT_INFO("%s: Intel Bluetooth firmware patch completed and activated",
2066 btintel_check_bdaddr(hdev);
2070 /* Disable the manufacturer mode without reset */
2071 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_disable), mfg_disable,
2074 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
2075 hdev->name, PTR_ERR(skb));
2076 return PTR_ERR(skb);
2080 BT_INFO("%s: Intel Bluetooth firmware patch completed", hdev->name);
2082 btintel_check_bdaddr(hdev);
2085 exit_mfg_deactivate:
2086 release_firmware(fw);
2088 /* Patching failed. Disable the manufacturer mode with reset and
2089 * deactivate the downloaded firmware patches.
2091 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_deactivate),
2092 mfg_reset_deactivate, HCI_INIT_TIMEOUT);
2094 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
2095 hdev->name, PTR_ERR(skb));
2096 return PTR_ERR(skb);
2100 BT_INFO("%s: Intel Bluetooth firmware patch completed and deactivated",
2103 btintel_check_bdaddr(hdev);
2107 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
2109 struct sk_buff *skb;
2110 struct hci_event_hdr *hdr;
2111 struct hci_ev_cmd_complete *evt;
2113 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_ATOMIC);
2117 hdr = (struct hci_event_hdr *)skb_put(skb, sizeof(*hdr));
2118 hdr->evt = HCI_EV_CMD_COMPLETE;
2119 hdr->plen = sizeof(*evt) + 1;
2121 evt = (struct hci_ev_cmd_complete *)skb_put(skb, sizeof(*evt));
2123 evt->opcode = cpu_to_le16(opcode);
2125 *skb_put(skb, 1) = 0x00;
2127 bt_cb(skb)->pkt_type = HCI_EVENT_PKT;
2129 return hci_recv_frame(hdev, skb);
2132 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
2135 /* When the device is in bootloader mode, then it can send
2136 * events via the bulk endpoint. These events are treated the
2137 * same way as the ones received from the interrupt endpoint.
2139 if (test_bit(BTUSB_BOOTLOADER, &data->flags))
2140 return btusb_recv_intr(data, buffer, count);
2142 return btusb_recv_bulk(data, buffer, count);
2145 static void btusb_intel_bootup(struct btusb_data *data, const void *ptr,
2148 const struct intel_bootup *evt = ptr;
2150 if (len != sizeof(*evt))
2153 if (test_and_clear_bit(BTUSB_BOOTING, &data->flags)) {
2154 smp_mb__after_atomic();
2155 wake_up_bit(&data->flags, BTUSB_BOOTING);
2159 static void btusb_intel_secure_send_result(struct btusb_data *data,
2160 const void *ptr, unsigned int len)
2162 const struct intel_secure_send_result *evt = ptr;
2164 if (len != sizeof(*evt))
2168 set_bit(BTUSB_FIRMWARE_FAILED, &data->flags);
2170 if (test_and_clear_bit(BTUSB_DOWNLOADING, &data->flags) &&
2171 test_bit(BTUSB_FIRMWARE_LOADED, &data->flags)) {
2172 smp_mb__after_atomic();
2173 wake_up_bit(&data->flags, BTUSB_DOWNLOADING);
2177 static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb)
2179 struct btusb_data *data = hci_get_drvdata(hdev);
2181 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
2182 struct hci_event_hdr *hdr = (void *)skb->data;
2184 if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff &&
2186 const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1;
2187 unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1;
2189 switch (skb->data[2]) {
2191 /* When switching to the operational firmware
2192 * the device sends a vendor specific event
2193 * indicating that the bootup completed.
2195 btusb_intel_bootup(data, ptr, len);
2198 /* When the firmware loading completes the
2199 * device sends out a vendor specific event
2200 * indicating the result of the firmware
2203 btusb_intel_secure_send_result(data, ptr, len);
2209 return hci_recv_frame(hdev, skb);
2212 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
2214 struct btusb_data *data = hci_get_drvdata(hdev);
2217 BT_DBG("%s", hdev->name);
2219 if (!test_bit(HCI_RUNNING, &hdev->flags))
2222 switch (bt_cb(skb)->pkt_type) {
2223 case HCI_COMMAND_PKT:
2224 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
2225 struct hci_command_hdr *cmd = (void *)skb->data;
2226 __u16 opcode = le16_to_cpu(cmd->opcode);
2228 /* When in bootloader mode and the command 0xfc09
2229 * is received, it needs to be send down the
2230 * bulk endpoint. So allocate a bulk URB instead.
2232 if (opcode == 0xfc09)
2233 urb = alloc_bulk_urb(hdev, skb);
2235 urb = alloc_ctrl_urb(hdev, skb);
2237 /* When the 0xfc01 command is issued to boot into
2238 * the operational firmware, it will actually not
2239 * send a command complete event. To keep the flow
2240 * control working inject that event here.
2242 if (opcode == 0xfc01)
2243 inject_cmd_complete(hdev, opcode);
2245 urb = alloc_ctrl_urb(hdev, skb);
2248 return PTR_ERR(urb);
2250 hdev->stat.cmd_tx++;
2251 return submit_or_queue_tx_urb(hdev, urb);
2253 case HCI_ACLDATA_PKT:
2254 urb = alloc_bulk_urb(hdev, skb);
2256 return PTR_ERR(urb);
2258 hdev->stat.acl_tx++;
2259 return submit_or_queue_tx_urb(hdev, urb);
2261 case HCI_SCODATA_PKT:
2262 if (hci_conn_num(hdev, SCO_LINK) < 1)
2265 urb = alloc_isoc_urb(hdev, skb);
2267 return PTR_ERR(urb);
2269 hdev->stat.sco_tx++;
2270 return submit_tx_urb(hdev, urb);
2276 static int btusb_intel_secure_send(struct hci_dev *hdev, u8 fragment_type,
2277 u32 plen, const void *param)
2280 struct sk_buff *skb;
2281 u8 cmd_param[253], fragment_len = (plen > 252) ? 252 : plen;
2283 cmd_param[0] = fragment_type;
2284 memcpy(cmd_param + 1, param, fragment_len);
2286 skb = __hci_cmd_sync(hdev, 0xfc09, fragment_len + 1,
2287 cmd_param, HCI_INIT_TIMEOUT);
2289 return PTR_ERR(skb);
2293 plen -= fragment_len;
2294 param += fragment_len;
2300 static void btusb_intel_version_info(struct hci_dev *hdev,
2301 struct intel_version *ver)
2303 const char *variant;
2305 switch (ver->fw_variant) {
2307 variant = "Bootloader";
2310 variant = "Firmware";
2316 BT_INFO("%s: %s revision %u.%u build %u week %u %u", hdev->name,
2317 variant, ver->fw_revision >> 4, ver->fw_revision & 0x0f,
2318 ver->fw_build_num, ver->fw_build_ww, 2000 + ver->fw_build_yy);
2321 static int btusb_setup_intel_new(struct hci_dev *hdev)
2323 static const u8 reset_param[] = { 0x00, 0x01, 0x00, 0x01,
2324 0x00, 0x08, 0x04, 0x00 };
2325 struct btusb_data *data = hci_get_drvdata(hdev);
2326 struct sk_buff *skb;
2327 struct intel_version *ver;
2328 struct intel_boot_params *params;
2329 const struct firmware *fw;
2332 ktime_t calltime, delta, rettime;
2333 unsigned long long duration;
2336 BT_DBG("%s", hdev->name);
2338 calltime = ktime_get();
2340 /* Read the Intel version information to determine if the device
2341 * is in bootloader mode or if it already has operational firmware
2344 skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT);
2346 BT_ERR("%s: Reading Intel version information failed (%ld)",
2347 hdev->name, PTR_ERR(skb));
2348 return PTR_ERR(skb);
2351 if (skb->len != sizeof(*ver)) {
2352 BT_ERR("%s: Intel version event size mismatch", hdev->name);
2357 ver = (struct intel_version *)skb->data;
2359 BT_ERR("%s: Intel version command failure (%02x)",
2360 hdev->name, ver->status);
2361 err = -bt_to_errno(ver->status);
2366 /* The hardware platform number has a fixed value of 0x37 and
2367 * for now only accept this single value.
2369 if (ver->hw_platform != 0x37) {
2370 BT_ERR("%s: Unsupported Intel hardware platform (%u)",
2371 hdev->name, ver->hw_platform);
2376 /* At the moment only the hardware variant iBT 3.0 (LnP/SfP) is
2377 * supported by this firmware loading method. This check has been
2378 * put in place to ensure correct forward compatibility options
2379 * when newer hardware variants come along.
2381 if (ver->hw_variant != 0x0b) {
2382 BT_ERR("%s: Unsupported Intel hardware variant (%u)",
2383 hdev->name, ver->hw_variant);
2388 btusb_intel_version_info(hdev, ver);
2390 /* The firmware variant determines if the device is in bootloader
2391 * mode or is running operational firmware. The value 0x06 identifies
2392 * the bootloader and the value 0x23 identifies the operational
2395 * When the operational firmware is already present, then only
2396 * the check for valid Bluetooth device address is needed. This
2397 * determines if the device will be added as configured or
2398 * unconfigured controller.
2400 * It is not possible to use the Secure Boot Parameters in this
2401 * case since that command is only available in bootloader mode.
2403 if (ver->fw_variant == 0x23) {
2405 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2406 btintel_check_bdaddr(hdev);
2410 /* If the device is not in bootloader mode, then the only possible
2411 * choice is to return an error and abort the device initialization.
2413 if (ver->fw_variant != 0x06) {
2414 BT_ERR("%s: Unsupported Intel firmware variant (%u)",
2415 hdev->name, ver->fw_variant);
2422 /* Read the secure boot parameters to identify the operating
2423 * details of the bootloader.
2425 skb = __hci_cmd_sync(hdev, 0xfc0d, 0, NULL, HCI_INIT_TIMEOUT);
2427 BT_ERR("%s: Reading Intel boot parameters failed (%ld)",
2428 hdev->name, PTR_ERR(skb));
2429 return PTR_ERR(skb);
2432 if (skb->len != sizeof(*params)) {
2433 BT_ERR("%s: Intel boot parameters size mismatch", hdev->name);
2438 params = (struct intel_boot_params *)skb->data;
2439 if (params->status) {
2440 BT_ERR("%s: Intel boot parameters command failure (%02x)",
2441 hdev->name, params->status);
2442 err = -bt_to_errno(params->status);
2447 BT_INFO("%s: Device revision is %u", hdev->name,
2448 le16_to_cpu(params->dev_revid));
2450 BT_INFO("%s: Secure boot is %s", hdev->name,
2451 params->secure_boot ? "enabled" : "disabled");
2453 BT_INFO("%s: Minimum firmware build %u week %u %u", hdev->name,
2454 params->min_fw_build_nn, params->min_fw_build_cw,
2455 2000 + params->min_fw_build_yy);
2457 /* It is required that every single firmware fragment is acknowledged
2458 * with a command complete event. If the boot parameters indicate
2459 * that this bootloader does not send them, then abort the setup.
2461 if (params->limited_cce != 0x00) {
2462 BT_ERR("%s: Unsupported Intel firmware loading method (%u)",
2463 hdev->name, params->limited_cce);
2468 /* If the OTP has no valid Bluetooth device address, then there will
2469 * also be no valid address for the operational firmware.
2471 if (!bacmp(¶ms->otp_bdaddr, BDADDR_ANY)) {
2472 BT_INFO("%s: No device address configured", hdev->name);
2473 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
2476 /* With this Intel bootloader only the hardware variant and device
2477 * revision information are used to select the right firmware.
2479 * Currently this bootloader support is limited to hardware variant
2480 * iBT 3.0 (LnP/SfP) which is identified by the value 11 (0x0b).
2482 snprintf(fwname, sizeof(fwname), "intel/ibt-11-%u.sfi",
2483 le16_to_cpu(params->dev_revid));
2485 err = request_firmware(&fw, fwname, &hdev->dev);
2487 BT_ERR("%s: Failed to load Intel firmware file (%d)",
2493 BT_INFO("%s: Found device firmware: %s", hdev->name, fwname);
2497 if (fw->size < 644) {
2498 BT_ERR("%s: Invalid size of firmware file (%zu)",
2499 hdev->name, fw->size);
2504 set_bit(BTUSB_DOWNLOADING, &data->flags);
2506 /* Start the firmware download transaction with the Init fragment
2507 * represented by the 128 bytes of CSS header.
2509 err = btusb_intel_secure_send(hdev, 0x00, 128, fw->data);
2511 BT_ERR("%s: Failed to send firmware header (%d)",
2516 /* Send the 256 bytes of public key information from the firmware
2517 * as the PKey fragment.
2519 err = btusb_intel_secure_send(hdev, 0x03, 256, fw->data + 128);
2521 BT_ERR("%s: Failed to send firmware public key (%d)",
2526 /* Send the 256 bytes of signature information from the firmware
2527 * as the Sign fragment.
2529 err = btusb_intel_secure_send(hdev, 0x02, 256, fw->data + 388);
2531 BT_ERR("%s: Failed to send firmware signature (%d)",
2536 fw_ptr = fw->data + 644;
2538 while (fw_ptr - fw->data < fw->size) {
2539 struct hci_command_hdr *cmd = (void *)fw_ptr;
2542 cmd_len = sizeof(*cmd) + cmd->plen;
2544 /* Send each command from the firmware data buffer as
2545 * a single Data fragment.
2547 err = btusb_intel_secure_send(hdev, 0x01, cmd_len, fw_ptr);
2549 BT_ERR("%s: Failed to send firmware data (%d)",
2557 set_bit(BTUSB_FIRMWARE_LOADED, &data->flags);
2559 BT_INFO("%s: Waiting for firmware download to complete", hdev->name);
2561 /* Before switching the device into operational mode and with that
2562 * booting the loaded firmware, wait for the bootloader notification
2563 * that all fragments have been successfully received.
2565 * When the event processing receives the notification, then the
2566 * BTUSB_DOWNLOADING flag will be cleared.
2568 * The firmware loading should not take longer than 5 seconds
2569 * and thus just timeout if that happens and fail the setup
2572 err = wait_on_bit_timeout(&data->flags, BTUSB_DOWNLOADING,
2574 msecs_to_jiffies(5000));
2576 BT_ERR("%s: Firmware loading interrupted", hdev->name);
2582 BT_ERR("%s: Firmware loading timeout", hdev->name);
2587 if (test_bit(BTUSB_FIRMWARE_FAILED, &data->flags)) {
2588 BT_ERR("%s: Firmware loading failed", hdev->name);
2593 rettime = ktime_get();
2594 delta = ktime_sub(rettime, calltime);
2595 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2597 BT_INFO("%s: Firmware loaded in %llu usecs", hdev->name, duration);
2600 release_firmware(fw);
2605 calltime = ktime_get();
2607 set_bit(BTUSB_BOOTING, &data->flags);
2609 skb = __hci_cmd_sync(hdev, 0xfc01, sizeof(reset_param), reset_param,
2612 return PTR_ERR(skb);
2616 /* The bootloader will not indicate when the device is ready. This
2617 * is done by the operational firmware sending bootup notification.
2619 * Booting into operational firmware should not take longer than
2620 * 1 second. However if that happens, then just fail the setup
2621 * since something went wrong.
2623 BT_INFO("%s: Waiting for device to boot", hdev->name);
2625 err = wait_on_bit_timeout(&data->flags, BTUSB_BOOTING,
2627 msecs_to_jiffies(1000));
2630 BT_ERR("%s: Device boot interrupted", hdev->name);
2635 BT_ERR("%s: Device boot timeout", hdev->name);
2639 rettime = ktime_get();
2640 delta = ktime_sub(rettime, calltime);
2641 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2643 BT_INFO("%s: Device booted in %llu usecs", hdev->name, duration);
2645 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2650 static void btusb_hw_error_intel(struct hci_dev *hdev, u8 code)
2652 struct sk_buff *skb;
2655 BT_ERR("%s: Hardware error 0x%2.2x", hdev->name, code);
2657 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
2659 BT_ERR("%s: Reset after hardware error failed (%ld)",
2660 hdev->name, PTR_ERR(skb));
2665 skb = __hci_cmd_sync(hdev, 0xfc22, 1, &type, HCI_INIT_TIMEOUT);
2667 BT_ERR("%s: Retrieving Intel exception info failed (%ld)",
2668 hdev->name, PTR_ERR(skb));
2672 if (skb->len != 13) {
2673 BT_ERR("%s: Exception info size mismatch", hdev->name);
2678 if (skb->data[0] != 0x00) {
2679 BT_ERR("%s: Exception info command failure (%02x)",
2680 hdev->name, skb->data[0]);
2685 BT_ERR("%s: Exception info %s", hdev->name, (char *)(skb->data + 1));
2690 static int btusb_shutdown_intel(struct hci_dev *hdev)
2692 struct sk_buff *skb;
2695 /* Some platforms have an issue with BT LED when the interface is
2696 * down or BT radio is turned off, which takes 5 seconds to BT LED
2697 * goes off. This command turns off the BT LED immediately.
2699 skb = __hci_cmd_sync(hdev, 0xfc3f, 0, NULL, HCI_INIT_TIMEOUT);
2702 BT_ERR("%s: turning off Intel device LED failed (%ld)",
2711 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
2712 const bdaddr_t *bdaddr)
2714 struct sk_buff *skb;
2719 buf[1] = sizeof(bdaddr_t);
2720 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
2722 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2725 BT_ERR("%s: changing Marvell device address failed (%ld)",
2734 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
2735 const bdaddr_t *bdaddr)
2737 struct sk_buff *skb;
2744 buf[3] = sizeof(bdaddr_t);
2745 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
2747 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2750 BT_ERR("%s: Change address command failed (%ld)",
2759 #define QCA_DFU_PACKET_LEN 4096
2761 #define QCA_GET_TARGET_VERSION 0x09
2762 #define QCA_CHECK_STATUS 0x05
2763 #define QCA_DFU_DOWNLOAD 0x01
2765 #define QCA_SYSCFG_UPDATED 0x40
2766 #define QCA_PATCH_UPDATED 0x80
2767 #define QCA_DFU_TIMEOUT 3000
2769 struct qca_version {
2771 __le32 patch_version;
2777 struct qca_rampatch_version {
2779 __le16 patch_version;
2782 struct qca_device_info {
2784 u8 rampatch_hdr; /* length of header in rampatch */
2785 u8 nvm_hdr; /* length of header in NVM */
2786 u8 ver_offset; /* offset of version structure in rampatch */
2789 static const struct qca_device_info qca_devices_table[] = {
2790 { 0x00000100, 20, 4, 10 }, /* Rome 1.0 */
2791 { 0x00000101, 20, 4, 10 }, /* Rome 1.1 */
2792 { 0x00000201, 28, 4, 18 }, /* Rome 2.1 */
2793 { 0x00000300, 28, 4, 18 }, /* Rome 3.0 */
2794 { 0x00000302, 28, 4, 18 }, /* Rome 3.2 */
2797 static int btusb_qca_send_vendor_req(struct hci_dev *hdev, u8 request,
2798 void *data, u16 size)
2800 struct btusb_data *btdata = hci_get_drvdata(hdev);
2801 struct usb_device *udev = btdata->udev;
2805 buf = kmalloc(size, GFP_KERNEL);
2809 /* Found some of USB hosts have IOT issues with ours so that we should
2810 * not wait until HCI layer is ready.
2812 pipe = usb_rcvctrlpipe(udev, 0);
2813 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
2814 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
2816 BT_ERR("%s: Failed to access otp area (%d)", hdev->name, err);
2820 memcpy(data, buf, size);
2828 static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
2829 const struct firmware *firmware,
2832 struct btusb_data *btdata = hci_get_drvdata(hdev);
2833 struct usb_device *udev = btdata->udev;
2834 size_t count, size, sent = 0;
2838 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
2842 count = firmware->size;
2844 size = min_t(size_t, count, hdr_size);
2845 memcpy(buf, firmware->data, size);
2847 /* USB patches should go down to controller through USB path
2848 * because binary format fits to go down through USB channel.
2849 * USB control path is for patching headers and USB bulk is for
2852 pipe = usb_sndctrlpipe(udev, 0);
2853 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
2854 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
2856 BT_ERR("%s: Failed to send headers (%d)", hdev->name, err);
2864 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
2866 memcpy(buf, firmware->data + sent, size);
2868 pipe = usb_sndbulkpipe(udev, 0x02);
2869 err = usb_bulk_msg(udev, pipe, buf, size, &len,
2872 BT_ERR("%s: Failed to send body at %zd of %zd (%d)",
2873 hdev->name, sent, firmware->size, err);
2878 BT_ERR("%s: Failed to get bulk buffer", hdev->name);
2892 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
2893 struct qca_version *ver,
2894 const struct qca_device_info *info)
2896 struct qca_rampatch_version *rver;
2897 const struct firmware *fw;
2898 u32 ver_rom, ver_patch;
2899 u16 rver_rom, rver_patch;
2903 ver_rom = le32_to_cpu(ver->rom_version);
2904 ver_patch = le32_to_cpu(ver->patch_version);
2906 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom);
2908 err = request_firmware(&fw, fwname, &hdev->dev);
2910 BT_ERR("%s: failed to request rampatch file: %s (%d)",
2911 hdev->name, fwname, err);
2915 BT_INFO("%s: using rampatch file: %s", hdev->name, fwname);
2917 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
2918 rver_rom = le16_to_cpu(rver->rom_version);
2919 rver_patch = le16_to_cpu(rver->patch_version);
2921 BT_INFO("%s: QCA: patch rome 0x%x build 0x%x, firmware rome 0x%x "
2922 "build 0x%x", hdev->name, rver_rom, rver_patch, ver_rom,
2925 if (rver_rom != ver_rom || rver_patch <= ver_patch) {
2926 BT_ERR("%s: rampatch file version did not match with firmware",
2932 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
2935 release_firmware(fw);
2940 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
2941 struct qca_version *ver,
2942 const struct qca_device_info *info)
2944 const struct firmware *fw;
2948 snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin",
2949 le32_to_cpu(ver->rom_version));
2951 err = request_firmware(&fw, fwname, &hdev->dev);
2953 BT_ERR("%s: failed to request NVM file: %s (%d)",
2954 hdev->name, fwname, err);
2958 BT_INFO("%s: using NVM file: %s", hdev->name, fwname);
2960 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
2962 release_firmware(fw);
2967 static int btusb_setup_qca(struct hci_dev *hdev)
2969 const struct qca_device_info *info = NULL;
2970 struct qca_version ver;
2975 err = btusb_qca_send_vendor_req(hdev, QCA_GET_TARGET_VERSION, &ver,
2980 ver_rom = le32_to_cpu(ver.rom_version);
2981 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
2982 if (ver_rom == qca_devices_table[i].rom_version)
2983 info = &qca_devices_table[i];
2986 BT_ERR("%s: don't support firmware rome 0x%x", hdev->name,
2991 err = btusb_qca_send_vendor_req(hdev, QCA_CHECK_STATUS, &status,
2996 if (!(status & QCA_PATCH_UPDATED)) {
2997 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
3002 if (!(status & QCA_SYSCFG_UPDATED)) {
3003 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
3011 static int btusb_probe(struct usb_interface *intf,
3012 const struct usb_device_id *id)
3014 struct usb_endpoint_descriptor *ep_desc;
3015 struct btusb_data *data;
3016 struct hci_dev *hdev;
3019 BT_DBG("intf %p id %p", intf, id);
3021 /* interface numbers are hardcoded in the spec */
3022 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
3025 if (!id->driver_info) {
3026 const struct usb_device_id *match;
3028 match = usb_match_id(intf, blacklist_table);
3033 if (id->driver_info == BTUSB_IGNORE)
3036 if (id->driver_info & BTUSB_ATH3012) {
3037 struct usb_device *udev = interface_to_usbdev(intf);
3039 /* Old firmware would otherwise let ath3k driver load
3040 * patch and sysconfig files */
3041 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
3045 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
3049 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
3050 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
3052 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
3053 data->intr_ep = ep_desc;
3057 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
3058 data->bulk_tx_ep = ep_desc;
3062 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
3063 data->bulk_rx_ep = ep_desc;
3068 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
3071 if (id->driver_info & BTUSB_AMP) {
3072 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
3073 data->cmdreq = 0x2b;
3075 data->cmdreq_type = USB_TYPE_CLASS;
3076 data->cmdreq = 0x00;
3079 data->udev = interface_to_usbdev(intf);
3082 INIT_WORK(&data->work, btusb_work);
3083 INIT_WORK(&data->waker, btusb_waker);
3084 init_usb_anchor(&data->deferred);
3085 init_usb_anchor(&data->tx_anchor);
3086 spin_lock_init(&data->txlock);
3088 init_usb_anchor(&data->intr_anchor);
3089 init_usb_anchor(&data->bulk_anchor);
3090 init_usb_anchor(&data->isoc_anchor);
3091 spin_lock_init(&data->rxlock);
3093 if (id->driver_info & BTUSB_INTEL_NEW) {
3094 data->recv_event = btusb_recv_event_intel;
3095 data->recv_bulk = btusb_recv_bulk_intel;
3096 set_bit(BTUSB_BOOTLOADER, &data->flags);
3098 data->recv_event = hci_recv_frame;
3099 data->recv_bulk = btusb_recv_bulk;
3102 hdev = hci_alloc_dev();
3106 hdev->bus = HCI_USB;
3107 hci_set_drvdata(hdev, data);
3109 if (id->driver_info & BTUSB_AMP)
3110 hdev->dev_type = HCI_AMP;
3112 hdev->dev_type = HCI_BREDR;
3116 SET_HCIDEV_DEV(hdev, &intf->dev);
3118 hdev->open = btusb_open;
3119 hdev->close = btusb_close;
3120 hdev->flush = btusb_flush;
3121 hdev->send = btusb_send_frame;
3122 hdev->notify = btusb_notify;
3124 if (id->driver_info & BTUSB_BCM92035)
3125 hdev->setup = btusb_setup_bcm92035;
3127 #ifdef CONFIG_BT_HCIBTUSB_BCM
3128 if (id->driver_info & BTUSB_BCM_PATCHRAM) {
3129 hdev->setup = btbcm_setup_patchram;
3130 hdev->set_bdaddr = btbcm_set_bdaddr;
3133 if (id->driver_info & BTUSB_BCM_APPLE)
3134 hdev->setup = btbcm_setup_apple;
3137 if (id->driver_info & BTUSB_INTEL) {
3138 hdev->setup = btusb_setup_intel;
3139 hdev->shutdown = btusb_shutdown_intel;
3140 hdev->set_bdaddr = btintel_set_bdaddr;
3141 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
3142 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3145 if (id->driver_info & BTUSB_INTEL_NEW) {
3146 hdev->send = btusb_send_frame_intel;
3147 hdev->setup = btusb_setup_intel_new;
3148 hdev->hw_error = btusb_hw_error_intel;
3149 hdev->set_bdaddr = btintel_set_bdaddr;
3150 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
3153 if (id->driver_info & BTUSB_MARVELL)
3154 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
3156 if (id->driver_info & BTUSB_SWAVE) {
3157 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
3158 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
3161 if (id->driver_info & BTUSB_INTEL_BOOT)
3162 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
3164 if (id->driver_info & BTUSB_ATH3012) {
3165 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
3166 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3167 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
3170 if (id->driver_info & BTUSB_QCA_ROME) {
3171 data->setup_on_usb = btusb_setup_qca;
3172 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
3175 if (id->driver_info & BTUSB_REALTEK)
3176 hdev->setup = btusb_setup_realtek;
3178 if (id->driver_info & BTUSB_AMP) {
3179 /* AMP controllers do not support SCO packets */
3182 /* Interface numbers are hardcoded in the specification */
3183 data->isoc = usb_ifnum_to_if(data->udev, 1);
3187 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3189 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
3190 if (!disable_scofix)
3191 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
3194 if (id->driver_info & BTUSB_BROKEN_ISOC)
3197 if (id->driver_info & BTUSB_DIGIANSWER) {
3198 data->cmdreq_type = USB_TYPE_VENDOR;
3199 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3202 if (id->driver_info & BTUSB_CSR) {
3203 struct usb_device *udev = data->udev;
3204 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
3206 /* Old firmware would otherwise execute USB reset */
3207 if (bcdDevice < 0x117)
3208 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3210 /* Fake CSR devices with broken commands */
3211 if (bcdDevice <= 0x100)
3212 hdev->setup = btusb_setup_csr;
3214 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3217 if (id->driver_info & BTUSB_SNIFFER) {
3218 struct usb_device *udev = data->udev;
3220 /* New sniffer firmware has crippled HCI interface */
3221 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
3222 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
3225 if (id->driver_info & BTUSB_INTEL_BOOT) {
3226 /* A bug in the bootloader causes that interrupt interface is
3227 * only enabled after receiving SetInterface(0, AltSetting=0).
3229 err = usb_set_interface(data->udev, 0, 0);
3231 BT_ERR("failed to set interface 0, alt 0 %d", err);
3238 err = usb_driver_claim_interface(&btusb_driver,
3246 err = hci_register_dev(hdev);
3252 usb_set_intfdata(intf, data);
3257 static void btusb_disconnect(struct usb_interface *intf)
3259 struct btusb_data *data = usb_get_intfdata(intf);
3260 struct hci_dev *hdev;
3262 BT_DBG("intf %p", intf);
3268 usb_set_intfdata(data->intf, NULL);
3271 usb_set_intfdata(data->isoc, NULL);
3273 hci_unregister_dev(hdev);
3275 if (intf == data->isoc)
3276 usb_driver_release_interface(&btusb_driver, data->intf);
3277 else if (data->isoc)
3278 usb_driver_release_interface(&btusb_driver, data->isoc);
3284 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
3286 struct btusb_data *data = usb_get_intfdata(intf);
3288 BT_DBG("intf %p", intf);
3290 if (data->suspend_count++)
3293 spin_lock_irq(&data->txlock);
3294 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
3295 set_bit(BTUSB_SUSPENDING, &data->flags);
3296 spin_unlock_irq(&data->txlock);
3298 spin_unlock_irq(&data->txlock);
3299 data->suspend_count--;
3303 cancel_work_sync(&data->work);
3305 btusb_stop_traffic(data);
3306 usb_kill_anchored_urbs(&data->tx_anchor);
3311 static void play_deferred(struct btusb_data *data)
3316 while ((urb = usb_get_from_anchor(&data->deferred))) {
3317 err = usb_submit_urb(urb, GFP_ATOMIC);
3321 data->tx_in_flight++;
3323 usb_scuttle_anchored_urbs(&data->deferred);
3326 static int btusb_resume(struct usb_interface *intf)
3328 struct btusb_data *data = usb_get_intfdata(intf);
3329 struct hci_dev *hdev = data->hdev;
3332 BT_DBG("intf %p", intf);
3334 if (--data->suspend_count)
3337 if (!test_bit(HCI_RUNNING, &hdev->flags))
3340 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
3341 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
3343 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
3348 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
3349 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
3351 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
3355 btusb_submit_bulk_urb(hdev, GFP_NOIO);
3358 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
3359 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
3360 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
3362 btusb_submit_isoc_urb(hdev, GFP_NOIO);
3365 spin_lock_irq(&data->txlock);
3366 play_deferred(data);
3367 clear_bit(BTUSB_SUSPENDING, &data->flags);
3368 spin_unlock_irq(&data->txlock);
3369 schedule_work(&data->work);
3374 usb_scuttle_anchored_urbs(&data->deferred);
3376 spin_lock_irq(&data->txlock);
3377 clear_bit(BTUSB_SUSPENDING, &data->flags);
3378 spin_unlock_irq(&data->txlock);
3384 static struct usb_driver btusb_driver = {
3386 .probe = btusb_probe,
3387 .disconnect = btusb_disconnect,
3389 .suspend = btusb_suspend,
3390 .resume = btusb_resume,
3392 .id_table = btusb_table,
3393 .supports_autosuspend = 1,
3394 .disable_hub_initiated_lpm = 1,
3397 module_usb_driver(btusb_driver);
3399 module_param(disable_scofix, bool, 0644);
3400 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
3402 module_param(force_scofix, bool, 0644);
3403 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
3405 module_param(reset, bool, 0644);
3406 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
3408 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
3409 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
3410 MODULE_VERSION(VERSION);
3411 MODULE_LICENSE("GPL");