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, 0x300f), .driver_info = BTUSB_ATH3012 },
190 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
191 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
192 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
193 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
194 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
195 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
196 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
197 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
198 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
199 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
200 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
201 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
202 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
203 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
204 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
205 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
206 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
207 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
208 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
209 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
210 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
211 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
212 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
213 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
215 /* Atheros AR5BBU12 with sflash firmware */
216 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
218 /* Atheros AR5BBU12 with sflash firmware */
219 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
220 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
222 /* QCA ROME chipset */
223 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME },
224 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME },
225 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME },
227 /* Broadcom BCM2035 */
228 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
229 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
230 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
232 /* Broadcom BCM2045 */
233 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
234 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
236 /* IBM/Lenovo ThinkPad with Broadcom chip */
237 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
238 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
240 /* HP laptop with Broadcom chip */
241 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
243 /* Dell laptop with Broadcom chip */
244 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
246 /* Dell Wireless 370 and 410 devices */
247 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
248 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
250 /* Belkin F8T012 and F8T013 devices */
251 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
252 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
254 /* Asus WL-BTD202 device */
255 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
257 /* Kensington Bluetooth USB adapter */
258 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
260 /* RTX Telecom based adapters with buggy SCO support */
261 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
262 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
264 /* CONWISE Technology based adapters with buggy SCO support */
265 { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
267 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
268 { USB_DEVICE(0x1300, 0x0001), .driver_info = BTUSB_SWAVE },
270 /* Digianswer devices */
271 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
272 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
274 /* CSR BlueCore Bluetooth Sniffer */
275 { USB_DEVICE(0x0a12, 0x0002),
276 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
278 /* Frontline ComProbe Bluetooth Sniffer */
279 { USB_DEVICE(0x16d3, 0x0002),
280 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
282 /* Marvell Bluetooth devices */
283 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
284 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
286 /* Intel Bluetooth devices */
287 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
288 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
289 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL },
290 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_NEW },
292 /* Other Intel Bluetooth devices */
293 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
294 .driver_info = BTUSB_IGNORE },
296 /* Realtek Bluetooth devices */
297 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
298 .driver_info = BTUSB_REALTEK },
300 /* Additional Realtek 8723AE Bluetooth devices */
301 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
302 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
304 /* Additional Realtek 8723BE Bluetooth devices */
305 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
306 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
307 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
308 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
309 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
311 /* Additional Realtek 8821AE Bluetooth devices */
312 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
313 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
314 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
315 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
316 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
318 { } /* Terminating entry */
321 #define BTUSB_MAX_ISOC_FRAMES 10
323 #define BTUSB_INTR_RUNNING 0
324 #define BTUSB_BULK_RUNNING 1
325 #define BTUSB_ISOC_RUNNING 2
326 #define BTUSB_SUSPENDING 3
327 #define BTUSB_DID_ISO_RESUME 4
328 #define BTUSB_BOOTLOADER 5
329 #define BTUSB_DOWNLOADING 6
330 #define BTUSB_FIRMWARE_LOADED 7
331 #define BTUSB_FIRMWARE_FAILED 8
332 #define BTUSB_BOOTING 9
335 struct hci_dev *hdev;
336 struct usb_device *udev;
337 struct usb_interface *intf;
338 struct usb_interface *isoc;
342 struct work_struct work;
343 struct work_struct waker;
345 struct usb_anchor deferred;
346 struct usb_anchor tx_anchor;
350 struct usb_anchor intr_anchor;
351 struct usb_anchor bulk_anchor;
352 struct usb_anchor isoc_anchor;
355 struct sk_buff *evt_skb;
356 struct sk_buff *acl_skb;
357 struct sk_buff *sco_skb;
359 struct usb_endpoint_descriptor *intr_ep;
360 struct usb_endpoint_descriptor *bulk_tx_ep;
361 struct usb_endpoint_descriptor *bulk_rx_ep;
362 struct usb_endpoint_descriptor *isoc_tx_ep;
363 struct usb_endpoint_descriptor *isoc_rx_ep;
368 unsigned int sco_num;
372 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
373 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
375 int (*setup_on_usb)(struct hci_dev *hdev);
378 static inline void btusb_free_frags(struct btusb_data *data)
382 spin_lock_irqsave(&data->rxlock, flags);
384 kfree_skb(data->evt_skb);
385 data->evt_skb = NULL;
387 kfree_skb(data->acl_skb);
388 data->acl_skb = NULL;
390 kfree_skb(data->sco_skb);
391 data->sco_skb = NULL;
393 spin_unlock_irqrestore(&data->rxlock, flags);
396 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
401 spin_lock(&data->rxlock);
408 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
414 bt_cb(skb)->pkt_type = HCI_EVENT_PKT;
415 bt_cb(skb)->expect = HCI_EVENT_HDR_SIZE;
418 len = min_t(uint, bt_cb(skb)->expect, count);
419 memcpy(skb_put(skb, len), buffer, len);
423 bt_cb(skb)->expect -= len;
425 if (skb->len == HCI_EVENT_HDR_SIZE) {
426 /* Complete event header */
427 bt_cb(skb)->expect = hci_event_hdr(skb)->plen;
429 if (skb_tailroom(skb) < bt_cb(skb)->expect) {
438 if (bt_cb(skb)->expect == 0) {
440 data->recv_event(data->hdev, skb);
446 spin_unlock(&data->rxlock);
451 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
456 spin_lock(&data->rxlock);
463 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
469 bt_cb(skb)->pkt_type = HCI_ACLDATA_PKT;
470 bt_cb(skb)->expect = HCI_ACL_HDR_SIZE;
473 len = min_t(uint, bt_cb(skb)->expect, count);
474 memcpy(skb_put(skb, len), buffer, len);
478 bt_cb(skb)->expect -= len;
480 if (skb->len == HCI_ACL_HDR_SIZE) {
481 __le16 dlen = hci_acl_hdr(skb)->dlen;
483 /* Complete ACL header */
484 bt_cb(skb)->expect = __le16_to_cpu(dlen);
486 if (skb_tailroom(skb) < bt_cb(skb)->expect) {
495 if (bt_cb(skb)->expect == 0) {
497 hci_recv_frame(data->hdev, skb);
503 spin_unlock(&data->rxlock);
508 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
513 spin_lock(&data->rxlock);
520 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
526 bt_cb(skb)->pkt_type = HCI_SCODATA_PKT;
527 bt_cb(skb)->expect = HCI_SCO_HDR_SIZE;
530 len = min_t(uint, bt_cb(skb)->expect, count);
531 memcpy(skb_put(skb, len), buffer, len);
535 bt_cb(skb)->expect -= len;
537 if (skb->len == HCI_SCO_HDR_SIZE) {
538 /* Complete SCO header */
539 bt_cb(skb)->expect = hci_sco_hdr(skb)->dlen;
541 if (skb_tailroom(skb) < bt_cb(skb)->expect) {
550 if (bt_cb(skb)->expect == 0) {
552 hci_recv_frame(data->hdev, skb);
558 spin_unlock(&data->rxlock);
563 static void btusb_intr_complete(struct urb *urb)
565 struct hci_dev *hdev = urb->context;
566 struct btusb_data *data = hci_get_drvdata(hdev);
569 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
572 if (!test_bit(HCI_RUNNING, &hdev->flags))
575 if (urb->status == 0) {
576 hdev->stat.byte_rx += urb->actual_length;
578 if (btusb_recv_intr(data, urb->transfer_buffer,
579 urb->actual_length) < 0) {
580 BT_ERR("%s corrupted event packet", hdev->name);
583 } else if (urb->status == -ENOENT) {
584 /* Avoid suspend failed when usb_kill_urb */
588 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
591 usb_mark_last_busy(data->udev);
592 usb_anchor_urb(urb, &data->intr_anchor);
594 err = usb_submit_urb(urb, GFP_ATOMIC);
596 /* -EPERM: urb is being killed;
597 * -ENODEV: device got disconnected */
598 if (err != -EPERM && err != -ENODEV)
599 BT_ERR("%s urb %p failed to resubmit (%d)",
600 hdev->name, urb, -err);
601 usb_unanchor_urb(urb);
605 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
607 struct btusb_data *data = hci_get_drvdata(hdev);
613 BT_DBG("%s", hdev->name);
618 urb = usb_alloc_urb(0, mem_flags);
622 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
624 buf = kmalloc(size, mem_flags);
630 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
632 usb_fill_int_urb(urb, data->udev, pipe, buf, size,
633 btusb_intr_complete, hdev, data->intr_ep->bInterval);
635 urb->transfer_flags |= URB_FREE_BUFFER;
637 usb_anchor_urb(urb, &data->intr_anchor);
639 err = usb_submit_urb(urb, mem_flags);
641 if (err != -EPERM && err != -ENODEV)
642 BT_ERR("%s urb %p submission failed (%d)",
643 hdev->name, urb, -err);
644 usb_unanchor_urb(urb);
652 static void btusb_bulk_complete(struct urb *urb)
654 struct hci_dev *hdev = urb->context;
655 struct btusb_data *data = hci_get_drvdata(hdev);
658 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
661 if (!test_bit(HCI_RUNNING, &hdev->flags))
664 if (urb->status == 0) {
665 hdev->stat.byte_rx += urb->actual_length;
667 if (data->recv_bulk(data, urb->transfer_buffer,
668 urb->actual_length) < 0) {
669 BT_ERR("%s corrupted ACL packet", hdev->name);
672 } else if (urb->status == -ENOENT) {
673 /* Avoid suspend failed when usb_kill_urb */
677 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
680 usb_anchor_urb(urb, &data->bulk_anchor);
681 usb_mark_last_busy(data->udev);
683 err = usb_submit_urb(urb, GFP_ATOMIC);
685 /* -EPERM: urb is being killed;
686 * -ENODEV: device got disconnected */
687 if (err != -EPERM && err != -ENODEV)
688 BT_ERR("%s urb %p failed to resubmit (%d)",
689 hdev->name, urb, -err);
690 usb_unanchor_urb(urb);
694 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
696 struct btusb_data *data = hci_get_drvdata(hdev);
700 int err, size = HCI_MAX_FRAME_SIZE;
702 BT_DBG("%s", hdev->name);
704 if (!data->bulk_rx_ep)
707 urb = usb_alloc_urb(0, mem_flags);
711 buf = kmalloc(size, mem_flags);
717 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
719 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
720 btusb_bulk_complete, hdev);
722 urb->transfer_flags |= URB_FREE_BUFFER;
724 usb_mark_last_busy(data->udev);
725 usb_anchor_urb(urb, &data->bulk_anchor);
727 err = usb_submit_urb(urb, mem_flags);
729 if (err != -EPERM && err != -ENODEV)
730 BT_ERR("%s urb %p submission failed (%d)",
731 hdev->name, urb, -err);
732 usb_unanchor_urb(urb);
740 static void btusb_isoc_complete(struct urb *urb)
742 struct hci_dev *hdev = urb->context;
743 struct btusb_data *data = hci_get_drvdata(hdev);
746 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
749 if (!test_bit(HCI_RUNNING, &hdev->flags))
752 if (urb->status == 0) {
753 for (i = 0; i < urb->number_of_packets; i++) {
754 unsigned int offset = urb->iso_frame_desc[i].offset;
755 unsigned int length = urb->iso_frame_desc[i].actual_length;
757 if (urb->iso_frame_desc[i].status)
760 hdev->stat.byte_rx += length;
762 if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
764 BT_ERR("%s corrupted SCO packet", hdev->name);
768 } else if (urb->status == -ENOENT) {
769 /* Avoid suspend failed when usb_kill_urb */
773 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
776 usb_anchor_urb(urb, &data->isoc_anchor);
778 err = usb_submit_urb(urb, GFP_ATOMIC);
780 /* -EPERM: urb is being killed;
781 * -ENODEV: device got disconnected */
782 if (err != -EPERM && err != -ENODEV)
783 BT_ERR("%s urb %p failed to resubmit (%d)",
784 hdev->name, urb, -err);
785 usb_unanchor_urb(urb);
789 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
793 BT_DBG("len %d mtu %d", len, mtu);
795 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
796 i++, offset += mtu, len -= mtu) {
797 urb->iso_frame_desc[i].offset = offset;
798 urb->iso_frame_desc[i].length = mtu;
801 if (len && i < BTUSB_MAX_ISOC_FRAMES) {
802 urb->iso_frame_desc[i].offset = offset;
803 urb->iso_frame_desc[i].length = len;
807 urb->number_of_packets = i;
810 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
812 struct btusb_data *data = hci_get_drvdata(hdev);
818 BT_DBG("%s", hdev->name);
820 if (!data->isoc_rx_ep)
823 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
827 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
828 BTUSB_MAX_ISOC_FRAMES;
830 buf = kmalloc(size, mem_flags);
836 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
838 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
839 hdev, data->isoc_rx_ep->bInterval);
841 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
843 __fill_isoc_descriptor(urb, size,
844 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
846 usb_anchor_urb(urb, &data->isoc_anchor);
848 err = usb_submit_urb(urb, mem_flags);
850 if (err != -EPERM && err != -ENODEV)
851 BT_ERR("%s urb %p submission failed (%d)",
852 hdev->name, urb, -err);
853 usb_unanchor_urb(urb);
861 static void btusb_tx_complete(struct urb *urb)
863 struct sk_buff *skb = urb->context;
864 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
865 struct btusb_data *data = hci_get_drvdata(hdev);
867 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
870 if (!test_bit(HCI_RUNNING, &hdev->flags))
874 hdev->stat.byte_tx += urb->transfer_buffer_length;
879 spin_lock(&data->txlock);
880 data->tx_in_flight--;
881 spin_unlock(&data->txlock);
883 kfree(urb->setup_packet);
888 static void btusb_isoc_tx_complete(struct urb *urb)
890 struct sk_buff *skb = urb->context;
891 struct hci_dev *hdev = (struct hci_dev *)skb->dev;
893 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
896 if (!test_bit(HCI_RUNNING, &hdev->flags))
900 hdev->stat.byte_tx += urb->transfer_buffer_length;
905 kfree(urb->setup_packet);
910 static int btusb_open(struct hci_dev *hdev)
912 struct btusb_data *data = hci_get_drvdata(hdev);
915 BT_DBG("%s", hdev->name);
917 /* Patching USB firmware files prior to starting any URBs of HCI path
918 * It is more safe to use USB bulk channel for downloading USB patch
920 if (data->setup_on_usb) {
921 err = data->setup_on_usb(hdev);
926 err = usb_autopm_get_interface(data->intf);
930 data->intf->needs_remote_wakeup = 1;
932 if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
935 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
938 err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
942 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
944 usb_kill_anchored_urbs(&data->intr_anchor);
948 set_bit(BTUSB_BULK_RUNNING, &data->flags);
949 btusb_submit_bulk_urb(hdev, GFP_KERNEL);
952 usb_autopm_put_interface(data->intf);
956 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
957 clear_bit(HCI_RUNNING, &hdev->flags);
958 usb_autopm_put_interface(data->intf);
962 static void btusb_stop_traffic(struct btusb_data *data)
964 usb_kill_anchored_urbs(&data->intr_anchor);
965 usb_kill_anchored_urbs(&data->bulk_anchor);
966 usb_kill_anchored_urbs(&data->isoc_anchor);
969 static int btusb_close(struct hci_dev *hdev)
971 struct btusb_data *data = hci_get_drvdata(hdev);
974 BT_DBG("%s", hdev->name);
976 if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
979 cancel_work_sync(&data->work);
980 cancel_work_sync(&data->waker);
982 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
983 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
984 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
986 btusb_stop_traffic(data);
987 btusb_free_frags(data);
989 err = usb_autopm_get_interface(data->intf);
993 data->intf->needs_remote_wakeup = 0;
994 usb_autopm_put_interface(data->intf);
997 usb_scuttle_anchored_urbs(&data->deferred);
1001 static int btusb_flush(struct hci_dev *hdev)
1003 struct btusb_data *data = hci_get_drvdata(hdev);
1005 BT_DBG("%s", hdev->name);
1007 usb_kill_anchored_urbs(&data->tx_anchor);
1008 btusb_free_frags(data);
1013 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
1015 struct btusb_data *data = hci_get_drvdata(hdev);
1016 struct usb_ctrlrequest *dr;
1020 urb = usb_alloc_urb(0, GFP_KERNEL);
1022 return ERR_PTR(-ENOMEM);
1024 dr = kmalloc(sizeof(*dr), GFP_KERNEL);
1027 return ERR_PTR(-ENOMEM);
1030 dr->bRequestType = data->cmdreq_type;
1031 dr->bRequest = data->cmdreq;
1034 dr->wLength = __cpu_to_le16(skb->len);
1036 pipe = usb_sndctrlpipe(data->udev, 0x00);
1038 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
1039 skb->data, skb->len, btusb_tx_complete, skb);
1041 skb->dev = (void *)hdev;
1046 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
1048 struct btusb_data *data = hci_get_drvdata(hdev);
1052 if (!data->bulk_tx_ep)
1053 return ERR_PTR(-ENODEV);
1055 urb = usb_alloc_urb(0, GFP_KERNEL);
1057 return ERR_PTR(-ENOMEM);
1059 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
1061 usb_fill_bulk_urb(urb, data->udev, pipe,
1062 skb->data, skb->len, btusb_tx_complete, skb);
1064 skb->dev = (void *)hdev;
1069 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
1071 struct btusb_data *data = hci_get_drvdata(hdev);
1075 if (!data->isoc_tx_ep)
1076 return ERR_PTR(-ENODEV);
1078 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
1080 return ERR_PTR(-ENOMEM);
1082 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
1084 usb_fill_int_urb(urb, data->udev, pipe,
1085 skb->data, skb->len, btusb_isoc_tx_complete,
1086 skb, data->isoc_tx_ep->bInterval);
1088 urb->transfer_flags = URB_ISO_ASAP;
1090 __fill_isoc_descriptor(urb, skb->len,
1091 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
1093 skb->dev = (void *)hdev;
1098 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
1100 struct btusb_data *data = hci_get_drvdata(hdev);
1103 usb_anchor_urb(urb, &data->tx_anchor);
1105 err = usb_submit_urb(urb, GFP_KERNEL);
1107 if (err != -EPERM && err != -ENODEV)
1108 BT_ERR("%s urb %p submission failed (%d)",
1109 hdev->name, urb, -err);
1110 kfree(urb->setup_packet);
1111 usb_unanchor_urb(urb);
1113 usb_mark_last_busy(data->udev);
1120 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
1122 struct btusb_data *data = hci_get_drvdata(hdev);
1123 unsigned long flags;
1126 spin_lock_irqsave(&data->txlock, flags);
1127 suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
1129 data->tx_in_flight++;
1130 spin_unlock_irqrestore(&data->txlock, flags);
1133 return submit_tx_urb(hdev, urb);
1135 usb_anchor_urb(urb, &data->deferred);
1136 schedule_work(&data->waker);
1142 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
1146 BT_DBG("%s", hdev->name);
1148 if (!test_bit(HCI_RUNNING, &hdev->flags))
1151 switch (bt_cb(skb)->pkt_type) {
1152 case HCI_COMMAND_PKT:
1153 urb = alloc_ctrl_urb(hdev, skb);
1155 return PTR_ERR(urb);
1157 hdev->stat.cmd_tx++;
1158 return submit_or_queue_tx_urb(hdev, urb);
1160 case HCI_ACLDATA_PKT:
1161 urb = alloc_bulk_urb(hdev, skb);
1163 return PTR_ERR(urb);
1165 hdev->stat.acl_tx++;
1166 return submit_or_queue_tx_urb(hdev, urb);
1168 case HCI_SCODATA_PKT:
1169 if (hci_conn_num(hdev, SCO_LINK) < 1)
1172 urb = alloc_isoc_urb(hdev, skb);
1174 return PTR_ERR(urb);
1176 hdev->stat.sco_tx++;
1177 return submit_tx_urb(hdev, urb);
1183 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
1185 struct btusb_data *data = hci_get_drvdata(hdev);
1187 BT_DBG("%s evt %d", hdev->name, evt);
1189 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
1190 data->sco_num = hci_conn_num(hdev, SCO_LINK);
1191 schedule_work(&data->work);
1195 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
1197 struct btusb_data *data = hci_get_drvdata(hdev);
1198 struct usb_interface *intf = data->isoc;
1199 struct usb_endpoint_descriptor *ep_desc;
1205 err = usb_set_interface(data->udev, 1, altsetting);
1207 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
1211 data->isoc_altsetting = altsetting;
1213 data->isoc_tx_ep = NULL;
1214 data->isoc_rx_ep = NULL;
1216 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1217 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1219 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
1220 data->isoc_tx_ep = ep_desc;
1224 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
1225 data->isoc_rx_ep = ep_desc;
1230 if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
1231 BT_ERR("%s invalid SCO descriptors", hdev->name);
1238 static void btusb_work(struct work_struct *work)
1240 struct btusb_data *data = container_of(work, struct btusb_data, work);
1241 struct hci_dev *hdev = data->hdev;
1245 if (data->sco_num > 0) {
1246 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
1247 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
1249 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1250 usb_kill_anchored_urbs(&data->isoc_anchor);
1254 set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
1257 if (hdev->voice_setting & 0x0020) {
1258 static const int alts[3] = { 2, 4, 5 };
1260 new_alts = alts[data->sco_num - 1];
1262 new_alts = data->sco_num;
1265 if (data->isoc_altsetting != new_alts) {
1266 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1267 usb_kill_anchored_urbs(&data->isoc_anchor);
1269 if (__set_isoc_interface(hdev, new_alts) < 0)
1273 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1274 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
1275 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1277 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
1280 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1281 usb_kill_anchored_urbs(&data->isoc_anchor);
1283 __set_isoc_interface(hdev, 0);
1284 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
1285 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
1289 static void btusb_waker(struct work_struct *work)
1291 struct btusb_data *data = container_of(work, struct btusb_data, waker);
1294 err = usb_autopm_get_interface(data->intf);
1298 usb_autopm_put_interface(data->intf);
1301 static struct sk_buff *btusb_read_local_version(struct hci_dev *hdev)
1303 struct sk_buff *skb;
1305 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1308 BT_ERR("%s: HCI_OP_READ_LOCAL_VERSION failed (%ld)",
1309 hdev->name, PTR_ERR(skb));
1313 if (skb->len != sizeof(struct hci_rp_read_local_version)) {
1314 BT_ERR("%s: HCI_OP_READ_LOCAL_VERSION event length mismatch",
1317 return ERR_PTR(-EIO);
1323 static int btusb_setup_bcm92035(struct hci_dev *hdev)
1325 struct sk_buff *skb;
1328 BT_DBG("%s", hdev->name);
1330 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
1332 BT_ERR("BCM92035 command failed (%ld)", -PTR_ERR(skb));
1339 static int btusb_setup_csr(struct hci_dev *hdev)
1341 struct hci_rp_read_local_version *rp;
1342 struct sk_buff *skb;
1345 BT_DBG("%s", hdev->name);
1347 skb = btusb_read_local_version(hdev);
1349 return -PTR_ERR(skb);
1351 rp = (struct hci_rp_read_local_version *)skb->data;
1354 if (le16_to_cpu(rp->manufacturer) != 10) {
1355 /* Clear the reset quirk since this is not an actual
1356 * early Bluetooth 1.1 device from CSR.
1358 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1360 /* These fake CSR controllers have all a broken
1361 * stored link key handling and so just disable it.
1363 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY,
1368 ret = -bt_to_errno(rp->status);
1375 #define RTL_FRAG_LEN 252
1377 struct rtl_download_cmd {
1379 __u8 data[RTL_FRAG_LEN];
1382 struct rtl_download_response {
1387 struct rtl_rom_version_evt {
1392 struct rtl_epatch_header {
1398 #define RTL_EPATCH_SIGNATURE "Realtech"
1399 #define RTL_ROM_LMP_3499 0x3499
1400 #define RTL_ROM_LMP_8723A 0x1200
1401 #define RTL_ROM_LMP_8723B 0x8723
1402 #define RTL_ROM_LMP_8821A 0x8821
1403 #define RTL_ROM_LMP_8761A 0x8761
1405 static int rtl_read_rom_version(struct hci_dev *hdev, u8 *version)
1407 struct rtl_rom_version_evt *rom_version;
1408 struct sk_buff *skb;
1411 /* Read RTL ROM version command */
1412 skb = __hci_cmd_sync(hdev, 0xfc6d, 0, NULL, HCI_INIT_TIMEOUT);
1414 BT_ERR("%s: Read ROM version failed (%ld)",
1415 hdev->name, PTR_ERR(skb));
1416 return PTR_ERR(skb);
1419 if (skb->len != sizeof(*rom_version)) {
1420 BT_ERR("%s: RTL version event length mismatch", hdev->name);
1425 rom_version = (struct rtl_rom_version_evt *)skb->data;
1426 BT_INFO("%s: rom_version status=%x version=%x",
1427 hdev->name, rom_version->status, rom_version->version);
1429 ret = rom_version->status;
1431 *version = rom_version->version;
1437 static int rtl8723b_parse_firmware(struct hci_dev *hdev, u16 lmp_subver,
1438 const struct firmware *fw,
1439 unsigned char **_buf)
1441 const u8 extension_sig[] = { 0x51, 0x04, 0xfd, 0x77 };
1442 struct rtl_epatch_header *epatch_info;
1446 u8 opcode, length, data, rom_version = 0;
1447 int project_id = -1;
1448 const unsigned char *fwptr, *chip_id_base;
1449 const unsigned char *patch_length_base, *patch_offset_base;
1450 u32 patch_offset = 0;
1451 u16 patch_length, num_patches;
1452 const u16 project_id_to_lmp_subver[] = {
1459 ret = rtl_read_rom_version(hdev, &rom_version);
1461 return -bt_to_errno(ret);
1463 min_size = sizeof(struct rtl_epatch_header) + sizeof(extension_sig) + 3;
1464 if (fw->size < min_size)
1467 fwptr = fw->data + fw->size - sizeof(extension_sig);
1468 if (memcmp(fwptr, extension_sig, sizeof(extension_sig)) != 0) {
1469 BT_ERR("%s: extension section signature mismatch", hdev->name);
1473 /* Loop from the end of the firmware parsing instructions, until
1474 * we find an instruction that identifies the "project ID" for the
1475 * hardware supported by this firwmare file.
1476 * Once we have that, we double-check that that project_id is suitable
1477 * for the hardware we are working with.
1479 while (fwptr >= fw->data + (sizeof(struct rtl_epatch_header) + 3)) {
1484 BT_DBG("check op=%x len=%x data=%x", opcode, length, data);
1486 if (opcode == 0xff) /* EOF */
1490 BT_ERR("%s: found instruction with length 0",
1495 if (opcode == 0 && length == 1) {
1503 if (project_id < 0) {
1504 BT_ERR("%s: failed to find version instruction", hdev->name);
1508 if (project_id >= ARRAY_SIZE(project_id_to_lmp_subver)) {
1509 BT_ERR("%s: unknown project id %d", hdev->name, project_id);
1513 if (lmp_subver != project_id_to_lmp_subver[project_id]) {
1514 BT_ERR("%s: firmware is for %x but this is a %x", hdev->name,
1515 project_id_to_lmp_subver[project_id], lmp_subver);
1519 epatch_info = (struct rtl_epatch_header *)fw->data;
1520 if (memcmp(epatch_info->signature, RTL_EPATCH_SIGNATURE, 8) != 0) {
1521 BT_ERR("%s: bad EPATCH signature", hdev->name);
1525 num_patches = le16_to_cpu(epatch_info->num_patches);
1526 BT_DBG("fw_version=%x, num_patches=%d",
1527 le32_to_cpu(epatch_info->fw_version), num_patches);
1529 /* After the rtl_epatch_header there is a funky patch metadata section.
1530 * Assuming 2 patches, the layout is:
1531 * ChipID1 ChipID2 PatchLength1 PatchLength2 PatchOffset1 PatchOffset2
1533 * Find the right patch for this chip.
1535 min_size += 8 * num_patches;
1536 if (fw->size < min_size)
1539 chip_id_base = fw->data + sizeof(struct rtl_epatch_header);
1540 patch_length_base = chip_id_base + (sizeof(u16) * num_patches);
1541 patch_offset_base = patch_length_base + (sizeof(u16) * num_patches);
1542 for (i = 0; i < num_patches; i++) {
1543 u16 chip_id = get_unaligned_le16(chip_id_base +
1545 if (chip_id == rom_version + 1) {
1546 patch_length = get_unaligned_le16(patch_length_base +
1548 patch_offset = get_unaligned_le32(patch_offset_base +
1554 if (!patch_offset) {
1555 BT_ERR("%s: didn't find patch for chip id %d",
1556 hdev->name, rom_version);
1560 BT_DBG("length=%x offset=%x index %d", patch_length, patch_offset, i);
1561 min_size = patch_offset + patch_length;
1562 if (fw->size < min_size)
1565 /* Copy the firmware into a new buffer and write the version at
1569 buf = kmemdup(fw->data + patch_offset, patch_length, GFP_KERNEL);
1573 memcpy(buf + patch_length - 4, &epatch_info->fw_version, 4);
1579 static int rtl_download_firmware(struct hci_dev *hdev,
1580 const unsigned char *data, int fw_len)
1582 struct rtl_download_cmd *dl_cmd;
1583 int frag_num = fw_len / RTL_FRAG_LEN + 1;
1584 int frag_len = RTL_FRAG_LEN;
1588 dl_cmd = kmalloc(sizeof(struct rtl_download_cmd), GFP_KERNEL);
1592 for (i = 0; i < frag_num; i++) {
1593 struct rtl_download_response *dl_resp;
1594 struct sk_buff *skb;
1596 BT_DBG("download fw (%d/%d)", i, frag_num);
1599 if (i == (frag_num - 1)) {
1600 dl_cmd->index |= 0x80; /* data end */
1601 frag_len = fw_len % RTL_FRAG_LEN;
1603 memcpy(dl_cmd->data, data, frag_len);
1605 /* Send download command */
1606 skb = __hci_cmd_sync(hdev, 0xfc20, frag_len + 1, dl_cmd,
1609 BT_ERR("%s: download fw command failed (%ld)",
1610 hdev->name, PTR_ERR(skb));
1611 ret = -PTR_ERR(skb);
1615 if (skb->len != sizeof(*dl_resp)) {
1616 BT_ERR("%s: download fw event length mismatch",
1623 dl_resp = (struct rtl_download_response *)skb->data;
1624 if (dl_resp->status != 0) {
1626 ret = bt_to_errno(dl_resp->status);
1631 data += RTL_FRAG_LEN;
1639 static int btusb_setup_rtl8723a(struct hci_dev *hdev)
1641 struct btusb_data *data = dev_get_drvdata(&hdev->dev);
1642 struct usb_device *udev = interface_to_usbdev(data->intf);
1643 const struct firmware *fw;
1646 BT_INFO("%s: rtl: loading rtl_bt/rtl8723a_fw.bin", hdev->name);
1647 ret = request_firmware(&fw, "rtl_bt/rtl8723a_fw.bin", &udev->dev);
1649 BT_ERR("%s: Failed to load rtl_bt/rtl8723a_fw.bin", hdev->name);
1658 /* Check that the firmware doesn't have the epatch signature
1659 * (which is only for RTL8723B and newer).
1661 if (!memcmp(fw->data, RTL_EPATCH_SIGNATURE, 8)) {
1662 BT_ERR("%s: unexpected EPATCH signature!", hdev->name);
1667 ret = rtl_download_firmware(hdev, fw->data, fw->size);
1670 release_firmware(fw);
1674 static int btusb_setup_rtl8723b(struct hci_dev *hdev, u16 lmp_subver,
1675 const char *fw_name)
1677 struct btusb_data *data = dev_get_drvdata(&hdev->dev);
1678 struct usb_device *udev = interface_to_usbdev(data->intf);
1679 unsigned char *fw_data = NULL;
1680 const struct firmware *fw;
1683 BT_INFO("%s: rtl: loading %s", hdev->name, fw_name);
1684 ret = request_firmware(&fw, fw_name, &udev->dev);
1686 BT_ERR("%s: Failed to load %s", hdev->name, fw_name);
1690 ret = rtl8723b_parse_firmware(hdev, lmp_subver, fw, &fw_data);
1694 ret = rtl_download_firmware(hdev, fw_data, ret);
1700 release_firmware(fw);
1704 static int btusb_setup_realtek(struct hci_dev *hdev)
1706 struct sk_buff *skb;
1707 struct hci_rp_read_local_version *resp;
1710 skb = btusb_read_local_version(hdev);
1712 return -PTR_ERR(skb);
1714 resp = (struct hci_rp_read_local_version *)skb->data;
1715 BT_INFO("%s: rtl: examining hci_ver=%02x hci_rev=%04x lmp_ver=%02x "
1716 "lmp_subver=%04x", hdev->name, resp->hci_ver, resp->hci_rev,
1717 resp->lmp_ver, resp->lmp_subver);
1719 lmp_subver = le16_to_cpu(resp->lmp_subver);
1722 /* Match a set of subver values that correspond to stock firmware,
1723 * which is not compatible with standard btusb.
1724 * If matched, upload an alternative firmware that does conform to
1725 * standard btusb. Once that firmware is uploaded, the subver changes
1726 * to a different value.
1728 switch (lmp_subver) {
1729 case RTL_ROM_LMP_8723A:
1730 case RTL_ROM_LMP_3499:
1731 return btusb_setup_rtl8723a(hdev);
1732 case RTL_ROM_LMP_8723B:
1733 return btusb_setup_rtl8723b(hdev, lmp_subver,
1734 "rtl_bt/rtl8723b_fw.bin");
1735 case RTL_ROM_LMP_8821A:
1736 return btusb_setup_rtl8723b(hdev, lmp_subver,
1737 "rtl_bt/rtl8821a_fw.bin");
1738 case RTL_ROM_LMP_8761A:
1739 return btusb_setup_rtl8723b(hdev, lmp_subver,
1740 "rtl_bt/rtl8761a_fw.bin");
1742 BT_INFO("rtl: assuming no firmware upload needed.");
1747 static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev,
1748 struct intel_version *ver)
1750 const struct firmware *fw;
1754 snprintf(fwname, sizeof(fwname),
1755 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq",
1756 ver->hw_platform, ver->hw_variant, ver->hw_revision,
1757 ver->fw_variant, ver->fw_revision, ver->fw_build_num,
1758 ver->fw_build_ww, ver->fw_build_yy);
1760 ret = request_firmware(&fw, fwname, &hdev->dev);
1762 if (ret == -EINVAL) {
1763 BT_ERR("%s Intel firmware file request failed (%d)",
1768 BT_ERR("%s failed to open Intel firmware file: %s(%d)",
1769 hdev->name, fwname, ret);
1771 /* If the correct firmware patch file is not found, use the
1772 * default firmware patch file instead
1774 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq",
1775 ver->hw_platform, ver->hw_variant);
1776 if (request_firmware(&fw, fwname, &hdev->dev) < 0) {
1777 BT_ERR("%s failed to open default Intel fw file: %s",
1778 hdev->name, fwname);
1783 BT_INFO("%s: Intel Bluetooth firmware file: %s", hdev->name, fwname);
1788 static int btusb_setup_intel_patching(struct hci_dev *hdev,
1789 const struct firmware *fw,
1790 const u8 **fw_ptr, int *disable_patch)
1792 struct sk_buff *skb;
1793 struct hci_command_hdr *cmd;
1794 const u8 *cmd_param;
1795 struct hci_event_hdr *evt = NULL;
1796 const u8 *evt_param = NULL;
1797 int remain = fw->size - (*fw_ptr - fw->data);
1799 /* The first byte indicates the types of the patch command or event.
1800 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes
1801 * in the current firmware buffer doesn't start with 0x01 or
1802 * the size of remain buffer is smaller than HCI command header,
1803 * the firmware file is corrupted and it should stop the patching
1806 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) {
1807 BT_ERR("%s Intel fw corrupted: invalid cmd read", hdev->name);
1813 cmd = (struct hci_command_hdr *)(*fw_ptr);
1814 *fw_ptr += sizeof(*cmd);
1815 remain -= sizeof(*cmd);
1817 /* Ensure that the remain firmware data is long enough than the length
1818 * of command parameter. If not, the firmware file is corrupted.
1820 if (remain < cmd->plen) {
1821 BT_ERR("%s Intel fw corrupted: invalid cmd len", hdev->name);
1825 /* If there is a command that loads a patch in the firmware
1826 * file, then enable the patch upon success, otherwise just
1827 * disable the manufacturer mode, for example patch activation
1828 * is not required when the default firmware patch file is used
1829 * because there are no patch data to load.
1831 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e)
1834 cmd_param = *fw_ptr;
1835 *fw_ptr += cmd->plen;
1836 remain -= cmd->plen;
1838 /* This reads the expected events when the above command is sent to the
1839 * device. Some vendor commands expects more than one events, for
1840 * example command status event followed by vendor specific event.
1841 * For this case, it only keeps the last expected event. so the command
1842 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of
1843 * last expected event.
1845 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) {
1849 evt = (struct hci_event_hdr *)(*fw_ptr);
1850 *fw_ptr += sizeof(*evt);
1851 remain -= sizeof(*evt);
1853 if (remain < evt->plen) {
1854 BT_ERR("%s Intel fw corrupted: invalid evt len",
1859 evt_param = *fw_ptr;
1860 *fw_ptr += evt->plen;
1861 remain -= evt->plen;
1864 /* Every HCI commands in the firmware file has its correspond event.
1865 * If event is not found or remain is smaller than zero, the firmware
1866 * file is corrupted.
1868 if (!evt || !evt_param || remain < 0) {
1869 BT_ERR("%s Intel fw corrupted: invalid evt read", hdev->name);
1873 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen,
1874 cmd_param, evt->evt, HCI_INIT_TIMEOUT);
1876 BT_ERR("%s sending Intel patch command (0x%4.4x) failed (%ld)",
1877 hdev->name, cmd->opcode, PTR_ERR(skb));
1878 return PTR_ERR(skb);
1881 /* It ensures that the returned event matches the event data read from
1882 * the firmware file. At fist, it checks the length and then
1883 * the contents of the event.
1885 if (skb->len != evt->plen) {
1886 BT_ERR("%s mismatch event length (opcode 0x%4.4x)", hdev->name,
1887 le16_to_cpu(cmd->opcode));
1892 if (memcmp(skb->data, evt_param, evt->plen)) {
1893 BT_ERR("%s mismatch event parameter (opcode 0x%4.4x)",
1894 hdev->name, le16_to_cpu(cmd->opcode));
1903 static int btusb_setup_intel(struct hci_dev *hdev)
1905 struct sk_buff *skb;
1906 const struct firmware *fw;
1909 struct intel_version *ver;
1911 const u8 mfg_enable[] = { 0x01, 0x00 };
1912 const u8 mfg_disable[] = { 0x00, 0x00 };
1913 const u8 mfg_reset_deactivate[] = { 0x00, 0x01 };
1914 const u8 mfg_reset_activate[] = { 0x00, 0x02 };
1916 BT_DBG("%s", hdev->name);
1918 /* The controller has a bug with the first HCI command sent to it
1919 * returning number of completed commands as zero. This would stall the
1920 * command processing in the Bluetooth core.
1922 * As a workaround, send HCI Reset command first which will reset the
1923 * number of completed commands and allow normal command processing
1926 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1928 BT_ERR("%s sending initial HCI reset command failed (%ld)",
1929 hdev->name, PTR_ERR(skb));
1930 return PTR_ERR(skb);
1934 /* Read Intel specific controller version first to allow selection of
1935 * which firmware file to load.
1937 * The returned information are hardware variant and revision plus
1938 * firmware variant, revision and build number.
1940 skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT);
1942 BT_ERR("%s reading Intel fw version command failed (%ld)",
1943 hdev->name, PTR_ERR(skb));
1944 return PTR_ERR(skb);
1947 if (skb->len != sizeof(*ver)) {
1948 BT_ERR("%s Intel version event length mismatch", hdev->name);
1953 ver = (struct intel_version *)skb->data;
1955 BT_ERR("%s Intel fw version event failed (%02x)", hdev->name,
1958 return -bt_to_errno(ver->status);
1961 BT_INFO("%s: read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
1962 hdev->name, ver->hw_platform, ver->hw_variant,
1963 ver->hw_revision, ver->fw_variant, ver->fw_revision,
1964 ver->fw_build_num, ver->fw_build_ww, ver->fw_build_yy,
1967 /* fw_patch_num indicates the version of patch the device currently
1968 * have. If there is no patch data in the device, it is always 0x00.
1969 * So, if it is other than 0x00, no need to patch the deivce again.
1971 if (ver->fw_patch_num) {
1972 BT_INFO("%s: Intel device is already patched. patch num: %02x",
1973 hdev->name, ver->fw_patch_num);
1975 btintel_check_bdaddr(hdev);
1979 /* Opens the firmware patch file based on the firmware version read
1980 * from the controller. If it fails to open the matching firmware
1981 * patch file, it tries to open the default firmware patch file.
1982 * If no patch file is found, allow the device to operate without
1985 fw = btusb_setup_intel_get_fw(hdev, ver);
1988 btintel_check_bdaddr(hdev);
1993 /* This Intel specific command enables the manufacturer mode of the
1996 * Only while this mode is enabled, the driver can download the
1997 * firmware patch data and configuration parameters.
1999 skb = __hci_cmd_sync(hdev, 0xfc11, 2, mfg_enable, HCI_INIT_TIMEOUT);
2001 BT_ERR("%s entering Intel manufacturer mode failed (%ld)",
2002 hdev->name, PTR_ERR(skb));
2003 release_firmware(fw);
2004 return PTR_ERR(skb);
2008 u8 evt_status = skb->data[0];
2010 BT_ERR("%s enable Intel manufacturer mode event failed (%02x)",
2011 hdev->name, evt_status);
2013 release_firmware(fw);
2014 return -bt_to_errno(evt_status);
2020 /* The firmware data file consists of list of Intel specific HCI
2021 * commands and its expected events. The first byte indicates the
2022 * type of the message, either HCI command or HCI event.
2024 * It reads the command and its expected event from the firmware file,
2025 * and send to the controller. Once __hci_cmd_sync_ev() returns,
2026 * the returned event is compared with the event read from the firmware
2027 * file and it will continue until all the messages are downloaded to
2030 * Once the firmware patching is completed successfully,
2031 * the manufacturer mode is disabled with reset and activating the
2034 * If the firmware patching fails, the manufacturer mode is
2035 * disabled with reset and deactivating the patch.
2037 * If the default patch file is used, no reset is done when disabling
2040 while (fw->size > fw_ptr - fw->data) {
2043 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr,
2046 goto exit_mfg_deactivate;
2049 release_firmware(fw);
2052 goto exit_mfg_disable;
2054 /* Patching completed successfully and disable the manufacturer mode
2055 * with reset and activate the downloaded firmware patches.
2057 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_activate),
2058 mfg_reset_activate, HCI_INIT_TIMEOUT);
2060 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
2061 hdev->name, PTR_ERR(skb));
2062 return PTR_ERR(skb);
2066 BT_INFO("%s: Intel Bluetooth firmware patch completed and activated",
2069 btintel_check_bdaddr(hdev);
2073 /* Disable the manufacturer mode without reset */
2074 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_disable), mfg_disable,
2077 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
2078 hdev->name, PTR_ERR(skb));
2079 return PTR_ERR(skb);
2083 BT_INFO("%s: Intel Bluetooth firmware patch completed", hdev->name);
2085 btintel_check_bdaddr(hdev);
2088 exit_mfg_deactivate:
2089 release_firmware(fw);
2091 /* Patching failed. Disable the manufacturer mode with reset and
2092 * deactivate the downloaded firmware patches.
2094 skb = __hci_cmd_sync(hdev, 0xfc11, sizeof(mfg_reset_deactivate),
2095 mfg_reset_deactivate, HCI_INIT_TIMEOUT);
2097 BT_ERR("%s exiting Intel manufacturer mode failed (%ld)",
2098 hdev->name, PTR_ERR(skb));
2099 return PTR_ERR(skb);
2103 BT_INFO("%s: Intel Bluetooth firmware patch completed and deactivated",
2106 btintel_check_bdaddr(hdev);
2110 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
2112 struct sk_buff *skb;
2113 struct hci_event_hdr *hdr;
2114 struct hci_ev_cmd_complete *evt;
2116 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_ATOMIC);
2120 hdr = (struct hci_event_hdr *)skb_put(skb, sizeof(*hdr));
2121 hdr->evt = HCI_EV_CMD_COMPLETE;
2122 hdr->plen = sizeof(*evt) + 1;
2124 evt = (struct hci_ev_cmd_complete *)skb_put(skb, sizeof(*evt));
2126 evt->opcode = cpu_to_le16(opcode);
2128 *skb_put(skb, 1) = 0x00;
2130 bt_cb(skb)->pkt_type = HCI_EVENT_PKT;
2132 return hci_recv_frame(hdev, skb);
2135 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
2138 /* When the device is in bootloader mode, then it can send
2139 * events via the bulk endpoint. These events are treated the
2140 * same way as the ones received from the interrupt endpoint.
2142 if (test_bit(BTUSB_BOOTLOADER, &data->flags))
2143 return btusb_recv_intr(data, buffer, count);
2145 return btusb_recv_bulk(data, buffer, count);
2148 static void btusb_intel_bootup(struct btusb_data *data, const void *ptr,
2151 const struct intel_bootup *evt = ptr;
2153 if (len != sizeof(*evt))
2156 if (test_and_clear_bit(BTUSB_BOOTING, &data->flags)) {
2157 smp_mb__after_atomic();
2158 wake_up_bit(&data->flags, BTUSB_BOOTING);
2162 static void btusb_intel_secure_send_result(struct btusb_data *data,
2163 const void *ptr, unsigned int len)
2165 const struct intel_secure_send_result *evt = ptr;
2167 if (len != sizeof(*evt))
2171 set_bit(BTUSB_FIRMWARE_FAILED, &data->flags);
2173 if (test_and_clear_bit(BTUSB_DOWNLOADING, &data->flags) &&
2174 test_bit(BTUSB_FIRMWARE_LOADED, &data->flags)) {
2175 smp_mb__after_atomic();
2176 wake_up_bit(&data->flags, BTUSB_DOWNLOADING);
2180 static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb)
2182 struct btusb_data *data = hci_get_drvdata(hdev);
2184 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
2185 struct hci_event_hdr *hdr = (void *)skb->data;
2187 if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff &&
2189 const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1;
2190 unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1;
2192 switch (skb->data[2]) {
2194 /* When switching to the operational firmware
2195 * the device sends a vendor specific event
2196 * indicating that the bootup completed.
2198 btusb_intel_bootup(data, ptr, len);
2201 /* When the firmware loading completes the
2202 * device sends out a vendor specific event
2203 * indicating the result of the firmware
2206 btusb_intel_secure_send_result(data, ptr, len);
2212 return hci_recv_frame(hdev, skb);
2215 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
2217 struct btusb_data *data = hci_get_drvdata(hdev);
2220 BT_DBG("%s", hdev->name);
2222 if (!test_bit(HCI_RUNNING, &hdev->flags))
2225 switch (bt_cb(skb)->pkt_type) {
2226 case HCI_COMMAND_PKT:
2227 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
2228 struct hci_command_hdr *cmd = (void *)skb->data;
2229 __u16 opcode = le16_to_cpu(cmd->opcode);
2231 /* When in bootloader mode and the command 0xfc09
2232 * is received, it needs to be send down the
2233 * bulk endpoint. So allocate a bulk URB instead.
2235 if (opcode == 0xfc09)
2236 urb = alloc_bulk_urb(hdev, skb);
2238 urb = alloc_ctrl_urb(hdev, skb);
2240 /* When the 0xfc01 command is issued to boot into
2241 * the operational firmware, it will actually not
2242 * send a command complete event. To keep the flow
2243 * control working inject that event here.
2245 if (opcode == 0xfc01)
2246 inject_cmd_complete(hdev, opcode);
2248 urb = alloc_ctrl_urb(hdev, skb);
2251 return PTR_ERR(urb);
2253 hdev->stat.cmd_tx++;
2254 return submit_or_queue_tx_urb(hdev, urb);
2256 case HCI_ACLDATA_PKT:
2257 urb = alloc_bulk_urb(hdev, skb);
2259 return PTR_ERR(urb);
2261 hdev->stat.acl_tx++;
2262 return submit_or_queue_tx_urb(hdev, urb);
2264 case HCI_SCODATA_PKT:
2265 if (hci_conn_num(hdev, SCO_LINK) < 1)
2268 urb = alloc_isoc_urb(hdev, skb);
2270 return PTR_ERR(urb);
2272 hdev->stat.sco_tx++;
2273 return submit_tx_urb(hdev, urb);
2279 static int btusb_intel_secure_send(struct hci_dev *hdev, u8 fragment_type,
2280 u32 plen, const void *param)
2283 struct sk_buff *skb;
2284 u8 cmd_param[253], fragment_len = (plen > 252) ? 252 : plen;
2286 cmd_param[0] = fragment_type;
2287 memcpy(cmd_param + 1, param, fragment_len);
2289 skb = __hci_cmd_sync(hdev, 0xfc09, fragment_len + 1,
2290 cmd_param, HCI_INIT_TIMEOUT);
2292 return PTR_ERR(skb);
2296 plen -= fragment_len;
2297 param += fragment_len;
2303 static void btusb_intel_version_info(struct hci_dev *hdev,
2304 struct intel_version *ver)
2306 const char *variant;
2308 switch (ver->fw_variant) {
2310 variant = "Bootloader";
2313 variant = "Firmware";
2319 BT_INFO("%s: %s revision %u.%u build %u week %u %u", hdev->name,
2320 variant, ver->fw_revision >> 4, ver->fw_revision & 0x0f,
2321 ver->fw_build_num, ver->fw_build_ww, 2000 + ver->fw_build_yy);
2324 static int btusb_setup_intel_new(struct hci_dev *hdev)
2326 static const u8 reset_param[] = { 0x00, 0x01, 0x00, 0x01,
2327 0x00, 0x08, 0x04, 0x00 };
2328 struct btusb_data *data = hci_get_drvdata(hdev);
2329 struct sk_buff *skb;
2330 struct intel_version *ver;
2331 struct intel_boot_params *params;
2332 const struct firmware *fw;
2335 ktime_t calltime, delta, rettime;
2336 unsigned long long duration;
2339 BT_DBG("%s", hdev->name);
2341 calltime = ktime_get();
2343 /* Read the Intel version information to determine if the device
2344 * is in bootloader mode or if it already has operational firmware
2347 skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_INIT_TIMEOUT);
2349 BT_ERR("%s: Reading Intel version information failed (%ld)",
2350 hdev->name, PTR_ERR(skb));
2351 return PTR_ERR(skb);
2354 if (skb->len != sizeof(*ver)) {
2355 BT_ERR("%s: Intel version event size mismatch", hdev->name);
2360 ver = (struct intel_version *)skb->data;
2362 BT_ERR("%s: Intel version command failure (%02x)",
2363 hdev->name, ver->status);
2364 err = -bt_to_errno(ver->status);
2369 /* The hardware platform number has a fixed value of 0x37 and
2370 * for now only accept this single value.
2372 if (ver->hw_platform != 0x37) {
2373 BT_ERR("%s: Unsupported Intel hardware platform (%u)",
2374 hdev->name, ver->hw_platform);
2379 /* At the moment only the hardware variant iBT 3.0 (LnP/SfP) is
2380 * supported by this firmware loading method. This check has been
2381 * put in place to ensure correct forward compatibility options
2382 * when newer hardware variants come along.
2384 if (ver->hw_variant != 0x0b) {
2385 BT_ERR("%s: Unsupported Intel hardware variant (%u)",
2386 hdev->name, ver->hw_variant);
2391 btusb_intel_version_info(hdev, ver);
2393 /* The firmware variant determines if the device is in bootloader
2394 * mode or is running operational firmware. The value 0x06 identifies
2395 * the bootloader and the value 0x23 identifies the operational
2398 * When the operational firmware is already present, then only
2399 * the check for valid Bluetooth device address is needed. This
2400 * determines if the device will be added as configured or
2401 * unconfigured controller.
2403 * It is not possible to use the Secure Boot Parameters in this
2404 * case since that command is only available in bootloader mode.
2406 if (ver->fw_variant == 0x23) {
2408 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2409 btintel_check_bdaddr(hdev);
2413 /* If the device is not in bootloader mode, then the only possible
2414 * choice is to return an error and abort the device initialization.
2416 if (ver->fw_variant != 0x06) {
2417 BT_ERR("%s: Unsupported Intel firmware variant (%u)",
2418 hdev->name, ver->fw_variant);
2425 /* Read the secure boot parameters to identify the operating
2426 * details of the bootloader.
2428 skb = __hci_cmd_sync(hdev, 0xfc0d, 0, NULL, HCI_INIT_TIMEOUT);
2430 BT_ERR("%s: Reading Intel boot parameters failed (%ld)",
2431 hdev->name, PTR_ERR(skb));
2432 return PTR_ERR(skb);
2435 if (skb->len != sizeof(*params)) {
2436 BT_ERR("%s: Intel boot parameters size mismatch", hdev->name);
2441 params = (struct intel_boot_params *)skb->data;
2442 if (params->status) {
2443 BT_ERR("%s: Intel boot parameters command failure (%02x)",
2444 hdev->name, params->status);
2445 err = -bt_to_errno(params->status);
2450 BT_INFO("%s: Device revision is %u", hdev->name,
2451 le16_to_cpu(params->dev_revid));
2453 BT_INFO("%s: Secure boot is %s", hdev->name,
2454 params->secure_boot ? "enabled" : "disabled");
2456 BT_INFO("%s: Minimum firmware build %u week %u %u", hdev->name,
2457 params->min_fw_build_nn, params->min_fw_build_cw,
2458 2000 + params->min_fw_build_yy);
2460 /* It is required that every single firmware fragment is acknowledged
2461 * with a command complete event. If the boot parameters indicate
2462 * that this bootloader does not send them, then abort the setup.
2464 if (params->limited_cce != 0x00) {
2465 BT_ERR("%s: Unsupported Intel firmware loading method (%u)",
2466 hdev->name, params->limited_cce);
2471 /* If the OTP has no valid Bluetooth device address, then there will
2472 * also be no valid address for the operational firmware.
2474 if (!bacmp(¶ms->otp_bdaddr, BDADDR_ANY)) {
2475 BT_INFO("%s: No device address configured", hdev->name);
2476 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
2479 /* With this Intel bootloader only the hardware variant and device
2480 * revision information are used to select the right firmware.
2482 * Currently this bootloader support is limited to hardware variant
2483 * iBT 3.0 (LnP/SfP) which is identified by the value 11 (0x0b).
2485 snprintf(fwname, sizeof(fwname), "intel/ibt-11-%u.sfi",
2486 le16_to_cpu(params->dev_revid));
2488 err = request_firmware(&fw, fwname, &hdev->dev);
2490 BT_ERR("%s: Failed to load Intel firmware file (%d)",
2496 BT_INFO("%s: Found device firmware: %s", hdev->name, fwname);
2500 if (fw->size < 644) {
2501 BT_ERR("%s: Invalid size of firmware file (%zu)",
2502 hdev->name, fw->size);
2507 set_bit(BTUSB_DOWNLOADING, &data->flags);
2509 /* Start the firmware download transaction with the Init fragment
2510 * represented by the 128 bytes of CSS header.
2512 err = btusb_intel_secure_send(hdev, 0x00, 128, fw->data);
2514 BT_ERR("%s: Failed to send firmware header (%d)",
2519 /* Send the 256 bytes of public key information from the firmware
2520 * as the PKey fragment.
2522 err = btusb_intel_secure_send(hdev, 0x03, 256, fw->data + 128);
2524 BT_ERR("%s: Failed to send firmware public key (%d)",
2529 /* Send the 256 bytes of signature information from the firmware
2530 * as the Sign fragment.
2532 err = btusb_intel_secure_send(hdev, 0x02, 256, fw->data + 388);
2534 BT_ERR("%s: Failed to send firmware signature (%d)",
2539 fw_ptr = fw->data + 644;
2541 while (fw_ptr - fw->data < fw->size) {
2542 struct hci_command_hdr *cmd = (void *)fw_ptr;
2545 cmd_len = sizeof(*cmd) + cmd->plen;
2547 /* Send each command from the firmware data buffer as
2548 * a single Data fragment.
2550 err = btusb_intel_secure_send(hdev, 0x01, cmd_len, fw_ptr);
2552 BT_ERR("%s: Failed to send firmware data (%d)",
2560 set_bit(BTUSB_FIRMWARE_LOADED, &data->flags);
2562 BT_INFO("%s: Waiting for firmware download to complete", hdev->name);
2564 /* Before switching the device into operational mode and with that
2565 * booting the loaded firmware, wait for the bootloader notification
2566 * that all fragments have been successfully received.
2568 * When the event processing receives the notification, then the
2569 * BTUSB_DOWNLOADING flag will be cleared.
2571 * The firmware loading should not take longer than 5 seconds
2572 * and thus just timeout if that happens and fail the setup
2575 err = wait_on_bit_timeout(&data->flags, BTUSB_DOWNLOADING,
2577 msecs_to_jiffies(5000));
2579 BT_ERR("%s: Firmware loading interrupted", hdev->name);
2585 BT_ERR("%s: Firmware loading timeout", hdev->name);
2590 if (test_bit(BTUSB_FIRMWARE_FAILED, &data->flags)) {
2591 BT_ERR("%s: Firmware loading failed", hdev->name);
2596 rettime = ktime_get();
2597 delta = ktime_sub(rettime, calltime);
2598 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2600 BT_INFO("%s: Firmware loaded in %llu usecs", hdev->name, duration);
2603 release_firmware(fw);
2608 calltime = ktime_get();
2610 set_bit(BTUSB_BOOTING, &data->flags);
2612 skb = __hci_cmd_sync(hdev, 0xfc01, sizeof(reset_param), reset_param,
2615 return PTR_ERR(skb);
2619 /* The bootloader will not indicate when the device is ready. This
2620 * is done by the operational firmware sending bootup notification.
2622 * Booting into operational firmware should not take longer than
2623 * 1 second. However if that happens, then just fail the setup
2624 * since something went wrong.
2626 BT_INFO("%s: Waiting for device to boot", hdev->name);
2628 err = wait_on_bit_timeout(&data->flags, BTUSB_BOOTING,
2630 msecs_to_jiffies(1000));
2633 BT_ERR("%s: Device boot interrupted", hdev->name);
2638 BT_ERR("%s: Device boot timeout", hdev->name);
2642 rettime = ktime_get();
2643 delta = ktime_sub(rettime, calltime);
2644 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2646 BT_INFO("%s: Device booted in %llu usecs", hdev->name, duration);
2648 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2653 static void btusb_hw_error_intel(struct hci_dev *hdev, u8 code)
2655 struct sk_buff *skb;
2658 BT_ERR("%s: Hardware error 0x%2.2x", hdev->name, code);
2660 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
2662 BT_ERR("%s: Reset after hardware error failed (%ld)",
2663 hdev->name, PTR_ERR(skb));
2668 skb = __hci_cmd_sync(hdev, 0xfc22, 1, &type, HCI_INIT_TIMEOUT);
2670 BT_ERR("%s: Retrieving Intel exception info failed (%ld)",
2671 hdev->name, PTR_ERR(skb));
2675 if (skb->len != 13) {
2676 BT_ERR("%s: Exception info size mismatch", hdev->name);
2681 if (skb->data[0] != 0x00) {
2682 BT_ERR("%s: Exception info command failure (%02x)",
2683 hdev->name, skb->data[0]);
2688 BT_ERR("%s: Exception info %s", hdev->name, (char *)(skb->data + 1));
2693 static int btusb_shutdown_intel(struct hci_dev *hdev)
2695 struct sk_buff *skb;
2698 /* Some platforms have an issue with BT LED when the interface is
2699 * down or BT radio is turned off, which takes 5 seconds to BT LED
2700 * goes off. This command turns off the BT LED immediately.
2702 skb = __hci_cmd_sync(hdev, 0xfc3f, 0, NULL, HCI_INIT_TIMEOUT);
2705 BT_ERR("%s: turning off Intel device LED failed (%ld)",
2714 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
2715 const bdaddr_t *bdaddr)
2717 struct sk_buff *skb;
2722 buf[1] = sizeof(bdaddr_t);
2723 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
2725 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2728 BT_ERR("%s: changing Marvell device address failed (%ld)",
2737 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
2738 const bdaddr_t *bdaddr)
2740 struct sk_buff *skb;
2747 buf[3] = sizeof(bdaddr_t);
2748 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
2750 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2753 BT_ERR("%s: Change address command failed (%ld)",
2762 #define QCA_DFU_PACKET_LEN 4096
2764 #define QCA_GET_TARGET_VERSION 0x09
2765 #define QCA_CHECK_STATUS 0x05
2766 #define QCA_DFU_DOWNLOAD 0x01
2768 #define QCA_SYSCFG_UPDATED 0x40
2769 #define QCA_PATCH_UPDATED 0x80
2770 #define QCA_DFU_TIMEOUT 3000
2772 struct qca_version {
2774 __le32 patch_version;
2780 struct qca_rampatch_version {
2782 __le16 patch_version;
2785 struct qca_device_info {
2787 u8 rampatch_hdr; /* length of header in rampatch */
2788 u8 nvm_hdr; /* length of header in NVM */
2789 u8 ver_offset; /* offset of version structure in rampatch */
2792 static const struct qca_device_info qca_devices_table[] = {
2793 { 0x00000100, 20, 4, 10 }, /* Rome 1.0 */
2794 { 0x00000101, 20, 4, 10 }, /* Rome 1.1 */
2795 { 0x00000201, 28, 4, 18 }, /* Rome 2.1 */
2796 { 0x00000300, 28, 4, 18 }, /* Rome 3.0 */
2797 { 0x00000302, 28, 4, 18 }, /* Rome 3.2 */
2800 static int btusb_qca_send_vendor_req(struct hci_dev *hdev, u8 request,
2801 void *data, u16 size)
2803 struct btusb_data *btdata = hci_get_drvdata(hdev);
2804 struct usb_device *udev = btdata->udev;
2808 buf = kmalloc(size, GFP_KERNEL);
2812 /* Found some of USB hosts have IOT issues with ours so that we should
2813 * not wait until HCI layer is ready.
2815 pipe = usb_rcvctrlpipe(udev, 0);
2816 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
2817 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
2819 BT_ERR("%s: Failed to access otp area (%d)", hdev->name, err);
2823 memcpy(data, buf, size);
2831 static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
2832 const struct firmware *firmware,
2835 struct btusb_data *btdata = hci_get_drvdata(hdev);
2836 struct usb_device *udev = btdata->udev;
2837 size_t count, size, sent = 0;
2841 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
2845 count = firmware->size;
2847 size = min_t(size_t, count, hdr_size);
2848 memcpy(buf, firmware->data, size);
2850 /* USB patches should go down to controller through USB path
2851 * because binary format fits to go down through USB channel.
2852 * USB control path is for patching headers and USB bulk is for
2855 pipe = usb_sndctrlpipe(udev, 0);
2856 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
2857 0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
2859 BT_ERR("%s: Failed to send headers (%d)", hdev->name, err);
2867 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
2869 memcpy(buf, firmware->data + sent, size);
2871 pipe = usb_sndbulkpipe(udev, 0x02);
2872 err = usb_bulk_msg(udev, pipe, buf, size, &len,
2875 BT_ERR("%s: Failed to send body at %zd of %zd (%d)",
2876 hdev->name, sent, firmware->size, err);
2881 BT_ERR("%s: Failed to get bulk buffer", hdev->name);
2895 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
2896 struct qca_version *ver,
2897 const struct qca_device_info *info)
2899 struct qca_rampatch_version *rver;
2900 const struct firmware *fw;
2901 u32 ver_rom, ver_patch;
2902 u16 rver_rom, rver_patch;
2906 ver_rom = le32_to_cpu(ver->rom_version);
2907 ver_patch = le32_to_cpu(ver->patch_version);
2909 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom);
2911 err = request_firmware(&fw, fwname, &hdev->dev);
2913 BT_ERR("%s: failed to request rampatch file: %s (%d)",
2914 hdev->name, fwname, err);
2918 BT_INFO("%s: using rampatch file: %s", hdev->name, fwname);
2920 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
2921 rver_rom = le16_to_cpu(rver->rom_version);
2922 rver_patch = le16_to_cpu(rver->patch_version);
2924 BT_INFO("%s: QCA: patch rome 0x%x build 0x%x, firmware rome 0x%x "
2925 "build 0x%x", hdev->name, rver_rom, rver_patch, ver_rom,
2928 if (rver_rom != ver_rom || rver_patch <= ver_patch) {
2929 BT_ERR("%s: rampatch file version did not match with firmware",
2935 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
2938 release_firmware(fw);
2943 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
2944 struct qca_version *ver,
2945 const struct qca_device_info *info)
2947 const struct firmware *fw;
2951 snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin",
2952 le32_to_cpu(ver->rom_version));
2954 err = request_firmware(&fw, fwname, &hdev->dev);
2956 BT_ERR("%s: failed to request NVM file: %s (%d)",
2957 hdev->name, fwname, err);
2961 BT_INFO("%s: using NVM file: %s", hdev->name, fwname);
2963 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
2965 release_firmware(fw);
2970 static int btusb_setup_qca(struct hci_dev *hdev)
2972 const struct qca_device_info *info = NULL;
2973 struct qca_version ver;
2978 err = btusb_qca_send_vendor_req(hdev, QCA_GET_TARGET_VERSION, &ver,
2983 ver_rom = le32_to_cpu(ver.rom_version);
2984 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
2985 if (ver_rom == qca_devices_table[i].rom_version)
2986 info = &qca_devices_table[i];
2989 BT_ERR("%s: don't support firmware rome 0x%x", hdev->name,
2994 err = btusb_qca_send_vendor_req(hdev, QCA_CHECK_STATUS, &status,
2999 if (!(status & QCA_PATCH_UPDATED)) {
3000 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
3005 if (!(status & QCA_SYSCFG_UPDATED)) {
3006 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
3014 static int btusb_probe(struct usb_interface *intf,
3015 const struct usb_device_id *id)
3017 struct usb_endpoint_descriptor *ep_desc;
3018 struct btusb_data *data;
3019 struct hci_dev *hdev;
3022 BT_DBG("intf %p id %p", intf, id);
3024 /* interface numbers are hardcoded in the spec */
3025 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
3028 if (!id->driver_info) {
3029 const struct usb_device_id *match;
3031 match = usb_match_id(intf, blacklist_table);
3036 if (id->driver_info == BTUSB_IGNORE)
3039 if (id->driver_info & BTUSB_ATH3012) {
3040 struct usb_device *udev = interface_to_usbdev(intf);
3042 /* Old firmware would otherwise let ath3k driver load
3043 * patch and sysconfig files */
3044 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
3048 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
3052 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
3053 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
3055 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
3056 data->intr_ep = ep_desc;
3060 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
3061 data->bulk_tx_ep = ep_desc;
3065 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
3066 data->bulk_rx_ep = ep_desc;
3071 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
3074 if (id->driver_info & BTUSB_AMP) {
3075 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
3076 data->cmdreq = 0x2b;
3078 data->cmdreq_type = USB_TYPE_CLASS;
3079 data->cmdreq = 0x00;
3082 data->udev = interface_to_usbdev(intf);
3085 INIT_WORK(&data->work, btusb_work);
3086 INIT_WORK(&data->waker, btusb_waker);
3087 init_usb_anchor(&data->deferred);
3088 init_usb_anchor(&data->tx_anchor);
3089 spin_lock_init(&data->txlock);
3091 init_usb_anchor(&data->intr_anchor);
3092 init_usb_anchor(&data->bulk_anchor);
3093 init_usb_anchor(&data->isoc_anchor);
3094 spin_lock_init(&data->rxlock);
3096 if (id->driver_info & BTUSB_INTEL_NEW) {
3097 data->recv_event = btusb_recv_event_intel;
3098 data->recv_bulk = btusb_recv_bulk_intel;
3099 set_bit(BTUSB_BOOTLOADER, &data->flags);
3101 data->recv_event = hci_recv_frame;
3102 data->recv_bulk = btusb_recv_bulk;
3105 hdev = hci_alloc_dev();
3109 hdev->bus = HCI_USB;
3110 hci_set_drvdata(hdev, data);
3112 if (id->driver_info & BTUSB_AMP)
3113 hdev->dev_type = HCI_AMP;
3115 hdev->dev_type = HCI_BREDR;
3119 SET_HCIDEV_DEV(hdev, &intf->dev);
3121 hdev->open = btusb_open;
3122 hdev->close = btusb_close;
3123 hdev->flush = btusb_flush;
3124 hdev->send = btusb_send_frame;
3125 hdev->notify = btusb_notify;
3127 if (id->driver_info & BTUSB_BCM92035)
3128 hdev->setup = btusb_setup_bcm92035;
3130 #ifdef CONFIG_BT_HCIBTUSB_BCM
3131 if (id->driver_info & BTUSB_BCM_PATCHRAM) {
3132 hdev->setup = btbcm_setup_patchram;
3133 hdev->set_bdaddr = btbcm_set_bdaddr;
3136 if (id->driver_info & BTUSB_BCM_APPLE)
3137 hdev->setup = btbcm_setup_apple;
3140 if (id->driver_info & BTUSB_INTEL) {
3141 hdev->setup = btusb_setup_intel;
3142 hdev->shutdown = btusb_shutdown_intel;
3143 hdev->set_bdaddr = btintel_set_bdaddr;
3144 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
3145 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3148 if (id->driver_info & BTUSB_INTEL_NEW) {
3149 hdev->send = btusb_send_frame_intel;
3150 hdev->setup = btusb_setup_intel_new;
3151 hdev->hw_error = btusb_hw_error_intel;
3152 hdev->set_bdaddr = btintel_set_bdaddr;
3153 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
3156 if (id->driver_info & BTUSB_MARVELL)
3157 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
3159 if (id->driver_info & BTUSB_SWAVE) {
3160 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
3161 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
3164 if (id->driver_info & BTUSB_INTEL_BOOT)
3165 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
3167 if (id->driver_info & BTUSB_ATH3012) {
3168 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
3169 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3170 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
3173 if (id->driver_info & BTUSB_QCA_ROME) {
3174 data->setup_on_usb = btusb_setup_qca;
3175 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
3178 if (id->driver_info & BTUSB_REALTEK)
3179 hdev->setup = btusb_setup_realtek;
3181 if (id->driver_info & BTUSB_AMP) {
3182 /* AMP controllers do not support SCO packets */
3185 /* Interface numbers are hardcoded in the specification */
3186 data->isoc = usb_ifnum_to_if(data->udev, 1);
3190 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3192 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
3193 if (!disable_scofix)
3194 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
3197 if (id->driver_info & BTUSB_BROKEN_ISOC)
3200 if (id->driver_info & BTUSB_DIGIANSWER) {
3201 data->cmdreq_type = USB_TYPE_VENDOR;
3202 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3205 if (id->driver_info & BTUSB_CSR) {
3206 struct usb_device *udev = data->udev;
3207 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
3209 /* Old firmware would otherwise execute USB reset */
3210 if (bcdDevice < 0x117)
3211 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3213 /* Fake CSR devices with broken commands */
3214 if (bcdDevice <= 0x100)
3215 hdev->setup = btusb_setup_csr;
3217 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3220 if (id->driver_info & BTUSB_SNIFFER) {
3221 struct usb_device *udev = data->udev;
3223 /* New sniffer firmware has crippled HCI interface */
3224 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
3225 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
3228 if (id->driver_info & BTUSB_INTEL_BOOT) {
3229 /* A bug in the bootloader causes that interrupt interface is
3230 * only enabled after receiving SetInterface(0, AltSetting=0).
3232 err = usb_set_interface(data->udev, 0, 0);
3234 BT_ERR("failed to set interface 0, alt 0 %d", err);
3241 err = usb_driver_claim_interface(&btusb_driver,
3249 err = hci_register_dev(hdev);
3255 usb_set_intfdata(intf, data);
3260 static void btusb_disconnect(struct usb_interface *intf)
3262 struct btusb_data *data = usb_get_intfdata(intf);
3263 struct hci_dev *hdev;
3265 BT_DBG("intf %p", intf);
3271 usb_set_intfdata(data->intf, NULL);
3274 usb_set_intfdata(data->isoc, NULL);
3276 hci_unregister_dev(hdev);
3278 if (intf == data->isoc)
3279 usb_driver_release_interface(&btusb_driver, data->intf);
3280 else if (data->isoc)
3281 usb_driver_release_interface(&btusb_driver, data->isoc);
3287 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
3289 struct btusb_data *data = usb_get_intfdata(intf);
3291 BT_DBG("intf %p", intf);
3293 if (data->suspend_count++)
3296 spin_lock_irq(&data->txlock);
3297 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
3298 set_bit(BTUSB_SUSPENDING, &data->flags);
3299 spin_unlock_irq(&data->txlock);
3301 spin_unlock_irq(&data->txlock);
3302 data->suspend_count--;
3306 cancel_work_sync(&data->work);
3308 btusb_stop_traffic(data);
3309 usb_kill_anchored_urbs(&data->tx_anchor);
3314 static void play_deferred(struct btusb_data *data)
3319 while ((urb = usb_get_from_anchor(&data->deferred))) {
3320 err = usb_submit_urb(urb, GFP_ATOMIC);
3324 data->tx_in_flight++;
3326 usb_scuttle_anchored_urbs(&data->deferred);
3329 static int btusb_resume(struct usb_interface *intf)
3331 struct btusb_data *data = usb_get_intfdata(intf);
3332 struct hci_dev *hdev = data->hdev;
3335 BT_DBG("intf %p", intf);
3337 if (--data->suspend_count)
3340 if (!test_bit(HCI_RUNNING, &hdev->flags))
3343 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
3344 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
3346 clear_bit(BTUSB_INTR_RUNNING, &data->flags);
3351 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
3352 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
3354 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
3358 btusb_submit_bulk_urb(hdev, GFP_NOIO);
3361 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
3362 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
3363 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
3365 btusb_submit_isoc_urb(hdev, GFP_NOIO);
3368 spin_lock_irq(&data->txlock);
3369 play_deferred(data);
3370 clear_bit(BTUSB_SUSPENDING, &data->flags);
3371 spin_unlock_irq(&data->txlock);
3372 schedule_work(&data->work);
3377 usb_scuttle_anchored_urbs(&data->deferred);
3379 spin_lock_irq(&data->txlock);
3380 clear_bit(BTUSB_SUSPENDING, &data->flags);
3381 spin_unlock_irq(&data->txlock);
3387 static struct usb_driver btusb_driver = {
3389 .probe = btusb_probe,
3390 .disconnect = btusb_disconnect,
3392 .suspend = btusb_suspend,
3393 .resume = btusb_resume,
3395 .id_table = btusb_table,
3396 .supports_autosuspend = 1,
3397 .disable_hub_initiated_lpm = 1,
3400 module_usb_driver(btusb_driver);
3402 module_param(disable_scofix, bool, 0644);
3403 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
3405 module_param(force_scofix, bool, 0644);
3406 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
3408 module_param(reset, bool, 0644);
3409 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
3411 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
3412 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
3413 MODULE_VERSION(VERSION);
3414 MODULE_LICENSE("GPL");