bfusb.c 17 KB

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  1. /*
  2. *
  3. * AVM BlueFRITZ! USB driver
  4. *
  5. * Copyright (C) 2003-2006 Marcel Holtmann <marcel@holtmann.org>
  6. *
  7. *
  8. * This program is free software; you can redistribute it and/or modify
  9. * it under the terms of the GNU General Public License as published by
  10. * the Free Software Foundation; either version 2 of the License, or
  11. * (at your option) any later version.
  12. *
  13. * This program is distributed in the hope that it will be useful,
  14. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  16. * GNU General Public License for more details.
  17. *
  18. * You should have received a copy of the GNU General Public License
  19. * along with this program; if not, write to the Free Software
  20. * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  21. *
  22. */
  23. #include <linux/module.h>
  24. #include <linux/kernel.h>
  25. #include <linux/init.h>
  26. #include <linux/slab.h>
  27. #include <linux/types.h>
  28. #include <linux/errno.h>
  29. #include <linux/skbuff.h>
  30. #include <linux/device.h>
  31. #include <linux/firmware.h>
  32. #include <linux/usb.h>
  33. #include <net/bluetooth/bluetooth.h>
  34. #include <net/bluetooth/hci_core.h>
  35. #ifndef CONFIG_BT_HCIBFUSB_DEBUG
  36. #undef BT_DBG
  37. #define BT_DBG(D...)
  38. #endif
  39. #define VERSION "1.1"
  40. static int ignore = 0;
  41. static struct usb_driver bfusb_driver;
  42. static struct usb_device_id bfusb_table[] = {
  43. /* AVM BlueFRITZ! USB */
  44. { USB_DEVICE(0x057c, 0x2200) },
  45. { } /* Terminating entry */
  46. };
  47. MODULE_DEVICE_TABLE(usb, bfusb_table);
  48. #define BFUSB_MAX_BLOCK_SIZE 256
  49. #define BFUSB_BLOCK_TIMEOUT 3000
  50. #define BFUSB_TX_PROCESS 1
  51. #define BFUSB_TX_WAKEUP 2
  52. #define BFUSB_MAX_BULK_TX 2
  53. #define BFUSB_MAX_BULK_RX 2
  54. struct bfusb_data {
  55. struct hci_dev *hdev;
  56. unsigned long state;
  57. struct usb_device *udev;
  58. unsigned int bulk_in_ep;
  59. unsigned int bulk_out_ep;
  60. unsigned int bulk_pkt_size;
  61. rwlock_t lock;
  62. struct sk_buff_head transmit_q;
  63. struct sk_buff *reassembly;
  64. atomic_t pending_tx;
  65. struct sk_buff_head pending_q;
  66. struct sk_buff_head completed_q;
  67. };
  68. struct bfusb_data_scb {
  69. struct urb *urb;
  70. };
  71. static void bfusb_tx_complete(struct urb *urb);
  72. static void bfusb_rx_complete(struct urb *urb);
  73. static struct urb *bfusb_get_completed(struct bfusb_data *data)
  74. {
  75. struct sk_buff *skb;
  76. struct urb *urb = NULL;
  77. BT_DBG("bfusb %p", data);
  78. skb = skb_dequeue(&data->completed_q);
  79. if (skb) {
  80. urb = ((struct bfusb_data_scb *) skb->cb)->urb;
  81. kfree_skb(skb);
  82. }
  83. return urb;
  84. }
  85. static void bfusb_unlink_urbs(struct bfusb_data *data)
  86. {
  87. struct sk_buff *skb;
  88. struct urb *urb;
  89. BT_DBG("bfusb %p", data);
  90. while ((skb = skb_dequeue(&data->pending_q))) {
  91. urb = ((struct bfusb_data_scb *) skb->cb)->urb;
  92. usb_kill_urb(urb);
  93. skb_queue_tail(&data->completed_q, skb);
  94. }
  95. while ((urb = bfusb_get_completed(data)))
  96. usb_free_urb(urb);
  97. }
  98. static int bfusb_send_bulk(struct bfusb_data *data, struct sk_buff *skb)
  99. {
  100. struct bfusb_data_scb *scb = (void *) skb->cb;
  101. struct urb *urb = bfusb_get_completed(data);
  102. int err, pipe;
  103. BT_DBG("bfusb %p skb %p len %d", data, skb, skb->len);
  104. if (!urb && !(urb = usb_alloc_urb(0, GFP_ATOMIC)))
  105. return -ENOMEM;
  106. pipe = usb_sndbulkpipe(data->udev, data->bulk_out_ep);
  107. usb_fill_bulk_urb(urb, data->udev, pipe, skb->data, skb->len,
  108. bfusb_tx_complete, skb);
  109. scb->urb = urb;
  110. skb_queue_tail(&data->pending_q, skb);
  111. err = usb_submit_urb(urb, GFP_ATOMIC);
  112. if (err) {
  113. BT_ERR("%s bulk tx submit failed urb %p err %d",
  114. data->hdev->name, urb, err);
  115. skb_unlink(skb, &data->pending_q);
  116. usb_free_urb(urb);
  117. } else
  118. atomic_inc(&data->pending_tx);
  119. return err;
  120. }
  121. static void bfusb_tx_wakeup(struct bfusb_data *data)
  122. {
  123. struct sk_buff *skb;
  124. BT_DBG("bfusb %p", data);
  125. if (test_and_set_bit(BFUSB_TX_PROCESS, &data->state)) {
  126. set_bit(BFUSB_TX_WAKEUP, &data->state);
  127. return;
  128. }
  129. do {
  130. clear_bit(BFUSB_TX_WAKEUP, &data->state);
  131. while ((atomic_read(&data->pending_tx) < BFUSB_MAX_BULK_TX) &&
  132. (skb = skb_dequeue(&data->transmit_q))) {
  133. if (bfusb_send_bulk(data, skb) < 0) {
  134. skb_queue_head(&data->transmit_q, skb);
  135. break;
  136. }
  137. }
  138. } while (test_bit(BFUSB_TX_WAKEUP, &data->state));
  139. clear_bit(BFUSB_TX_PROCESS, &data->state);
  140. }
  141. static void bfusb_tx_complete(struct urb *urb)
  142. {
  143. struct sk_buff *skb = (struct sk_buff *) urb->context;
  144. struct bfusb_data *data = (struct bfusb_data *) skb->dev;
  145. BT_DBG("bfusb %p urb %p skb %p len %d", data, urb, skb, skb->len);
  146. atomic_dec(&data->pending_tx);
  147. if (!test_bit(HCI_RUNNING, &data->hdev->flags))
  148. return;
  149. if (!urb->status)
  150. data->hdev->stat.byte_tx += skb->len;
  151. else
  152. data->hdev->stat.err_tx++;
  153. read_lock(&data->lock);
  154. skb_unlink(skb, &data->pending_q);
  155. skb_queue_tail(&data->completed_q, skb);
  156. bfusb_tx_wakeup(data);
  157. read_unlock(&data->lock);
  158. }
  159. static int bfusb_rx_submit(struct bfusb_data *data, struct urb *urb)
  160. {
  161. struct bfusb_data_scb *scb;
  162. struct sk_buff *skb;
  163. int err, pipe, size = HCI_MAX_FRAME_SIZE + 32;
  164. BT_DBG("bfusb %p urb %p", bfusb, urb);
  165. if (!urb && !(urb = usb_alloc_urb(0, GFP_ATOMIC)))
  166. return -ENOMEM;
  167. skb = bt_skb_alloc(size, GFP_ATOMIC);
  168. if (!skb) {
  169. usb_free_urb(urb);
  170. return -ENOMEM;
  171. }
  172. skb->dev = (void *) data;
  173. scb = (struct bfusb_data_scb *) skb->cb;
  174. scb->urb = urb;
  175. pipe = usb_rcvbulkpipe(data->udev, data->bulk_in_ep);
  176. usb_fill_bulk_urb(urb, data->udev, pipe, skb->data, size,
  177. bfusb_rx_complete, skb);
  178. skb_queue_tail(&data->pending_q, skb);
  179. err = usb_submit_urb(urb, GFP_ATOMIC);
  180. if (err) {
  181. BT_ERR("%s bulk rx submit failed urb %p err %d",
  182. data->hdev->name, urb, err);
  183. skb_unlink(skb, &data->pending_q);
  184. kfree_skb(skb);
  185. usb_free_urb(urb);
  186. }
  187. return err;
  188. }
  189. static inline int bfusb_recv_block(struct bfusb_data *data, int hdr, unsigned char *buf, int len)
  190. {
  191. BT_DBG("bfusb %p hdr 0x%02x data %p len %d", data, hdr, buf, len);
  192. if (hdr & 0x10) {
  193. BT_ERR("%s error in block", data->hdev->name);
  194. if (data->reassembly)
  195. kfree_skb(data->reassembly);
  196. data->reassembly = NULL;
  197. return -EIO;
  198. }
  199. if (hdr & 0x04) {
  200. struct sk_buff *skb;
  201. unsigned char pkt_type;
  202. int pkt_len = 0;
  203. if (data->reassembly) {
  204. BT_ERR("%s unexpected start block", data->hdev->name);
  205. kfree_skb(data->reassembly);
  206. data->reassembly = NULL;
  207. }
  208. if (len < 1) {
  209. BT_ERR("%s no packet type found", data->hdev->name);
  210. return -EPROTO;
  211. }
  212. pkt_type = *buf++; len--;
  213. switch (pkt_type) {
  214. case HCI_EVENT_PKT:
  215. if (len >= HCI_EVENT_HDR_SIZE) {
  216. struct hci_event_hdr *hdr = (struct hci_event_hdr *) buf;
  217. pkt_len = HCI_EVENT_HDR_SIZE + hdr->plen;
  218. } else {
  219. BT_ERR("%s event block is too short", data->hdev->name);
  220. return -EILSEQ;
  221. }
  222. break;
  223. case HCI_ACLDATA_PKT:
  224. if (len >= HCI_ACL_HDR_SIZE) {
  225. struct hci_acl_hdr *hdr = (struct hci_acl_hdr *) buf;
  226. pkt_len = HCI_ACL_HDR_SIZE + __le16_to_cpu(hdr->dlen);
  227. } else {
  228. BT_ERR("%s data block is too short", data->hdev->name);
  229. return -EILSEQ;
  230. }
  231. break;
  232. case HCI_SCODATA_PKT:
  233. if (len >= HCI_SCO_HDR_SIZE) {
  234. struct hci_sco_hdr *hdr = (struct hci_sco_hdr *) buf;
  235. pkt_len = HCI_SCO_HDR_SIZE + hdr->dlen;
  236. } else {
  237. BT_ERR("%s audio block is too short", data->hdev->name);
  238. return -EILSEQ;
  239. }
  240. break;
  241. }
  242. skb = bt_skb_alloc(pkt_len, GFP_ATOMIC);
  243. if (!skb) {
  244. BT_ERR("%s no memory for the packet", data->hdev->name);
  245. return -ENOMEM;
  246. }
  247. skb->dev = (void *) data->hdev;
  248. bt_cb(skb)->pkt_type = pkt_type;
  249. data->reassembly = skb;
  250. } else {
  251. if (!data->reassembly) {
  252. BT_ERR("%s unexpected continuation block", data->hdev->name);
  253. return -EIO;
  254. }
  255. }
  256. if (len > 0)
  257. memcpy(skb_put(data->reassembly, len), buf, len);
  258. if (hdr & 0x08) {
  259. hci_recv_frame(data->reassembly);
  260. data->reassembly = NULL;
  261. }
  262. return 0;
  263. }
  264. static void bfusb_rx_complete(struct urb *urb)
  265. {
  266. struct sk_buff *skb = (struct sk_buff *) urb->context;
  267. struct bfusb_data *data = (struct bfusb_data *) skb->dev;
  268. unsigned char *buf = urb->transfer_buffer;
  269. int count = urb->actual_length;
  270. int err, hdr, len;
  271. BT_DBG("bfusb %p urb %p skb %p len %d", bfusb, urb, skb, skb->len);
  272. read_lock(&data->lock);
  273. if (!test_bit(HCI_RUNNING, &data->hdev->flags))
  274. goto unlock;
  275. if (urb->status || !count)
  276. goto resubmit;
  277. data->hdev->stat.byte_rx += count;
  278. skb_put(skb, count);
  279. while (count) {
  280. hdr = buf[0] | (buf[1] << 8);
  281. if (hdr & 0x4000) {
  282. len = 0;
  283. count -= 2;
  284. buf += 2;
  285. } else {
  286. len = (buf[2] == 0) ? 256 : buf[2];
  287. count -= 3;
  288. buf += 3;
  289. }
  290. if (count < len) {
  291. BT_ERR("%s block extends over URB buffer ranges",
  292. data->hdev->name);
  293. }
  294. if ((hdr & 0xe1) == 0xc1)
  295. bfusb_recv_block(data, hdr, buf, len);
  296. count -= len;
  297. buf += len;
  298. }
  299. skb_unlink(skb, &data->pending_q);
  300. kfree_skb(skb);
  301. bfusb_rx_submit(data, urb);
  302. read_unlock(&data->lock);
  303. return;
  304. resubmit:
  305. urb->dev = data->udev;
  306. err = usb_submit_urb(urb, GFP_ATOMIC);
  307. if (err) {
  308. BT_ERR("%s bulk resubmit failed urb %p err %d",
  309. data->hdev->name, urb, err);
  310. }
  311. unlock:
  312. read_unlock(&data->lock);
  313. }
  314. static int bfusb_open(struct hci_dev *hdev)
  315. {
  316. struct bfusb_data *data = hdev->driver_data;
  317. unsigned long flags;
  318. int i, err;
  319. BT_DBG("hdev %p bfusb %p", hdev, data);
  320. if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
  321. return 0;
  322. write_lock_irqsave(&data->lock, flags);
  323. err = bfusb_rx_submit(data, NULL);
  324. if (!err) {
  325. for (i = 1; i < BFUSB_MAX_BULK_RX; i++)
  326. bfusb_rx_submit(data, NULL);
  327. } else {
  328. clear_bit(HCI_RUNNING, &hdev->flags);
  329. }
  330. write_unlock_irqrestore(&data->lock, flags);
  331. return err;
  332. }
  333. static int bfusb_flush(struct hci_dev *hdev)
  334. {
  335. struct bfusb_data *data = hdev->driver_data;
  336. BT_DBG("hdev %p bfusb %p", hdev, data);
  337. skb_queue_purge(&data->transmit_q);
  338. return 0;
  339. }
  340. static int bfusb_close(struct hci_dev *hdev)
  341. {
  342. struct bfusb_data *data = hdev->driver_data;
  343. unsigned long flags;
  344. BT_DBG("hdev %p bfusb %p", hdev, data);
  345. if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
  346. return 0;
  347. write_lock_irqsave(&data->lock, flags);
  348. write_unlock_irqrestore(&data->lock, flags);
  349. bfusb_unlink_urbs(data);
  350. bfusb_flush(hdev);
  351. return 0;
  352. }
  353. static int bfusb_send_frame(struct sk_buff *skb)
  354. {
  355. struct hci_dev *hdev = (struct hci_dev *) skb->dev;
  356. struct bfusb_data *data;
  357. struct sk_buff *nskb;
  358. unsigned char buf[3];
  359. int sent = 0, size, count;
  360. BT_DBG("hdev %p skb %p type %d len %d", hdev, skb, bt_cb(skb)->pkt_type, skb->len);
  361. if (!hdev) {
  362. BT_ERR("Frame for unknown HCI device (hdev=NULL)");
  363. return -ENODEV;
  364. }
  365. if (!test_bit(HCI_RUNNING, &hdev->flags))
  366. return -EBUSY;
  367. data = hdev->driver_data;
  368. switch (bt_cb(skb)->pkt_type) {
  369. case HCI_COMMAND_PKT:
  370. hdev->stat.cmd_tx++;
  371. break;
  372. case HCI_ACLDATA_PKT:
  373. hdev->stat.acl_tx++;
  374. break;
  375. case HCI_SCODATA_PKT:
  376. hdev->stat.sco_tx++;
  377. break;
  378. };
  379. /* Prepend skb with frame type */
  380. memcpy(skb_push(skb, 1), &bt_cb(skb)->pkt_type, 1);
  381. count = skb->len;
  382. /* Max HCI frame size seems to be 1511 + 1 */
  383. nskb = bt_skb_alloc(count + 32, GFP_ATOMIC);
  384. if (!nskb) {
  385. BT_ERR("Can't allocate memory for new packet");
  386. return -ENOMEM;
  387. }
  388. nskb->dev = (void *) data;
  389. while (count) {
  390. size = min_t(uint, count, BFUSB_MAX_BLOCK_SIZE);
  391. buf[0] = 0xc1 | ((sent == 0) ? 0x04 : 0) | ((count == size) ? 0x08 : 0);
  392. buf[1] = 0x00;
  393. buf[2] = (size == BFUSB_MAX_BLOCK_SIZE) ? 0 : size;
  394. memcpy(skb_put(nskb, 3), buf, 3);
  395. memcpy(skb_put(nskb, size), skb->data + sent, size);
  396. sent += size;
  397. count -= size;
  398. }
  399. /* Don't send frame with multiple size of bulk max packet */
  400. if ((nskb->len % data->bulk_pkt_size) == 0) {
  401. buf[0] = 0xdd;
  402. buf[1] = 0x00;
  403. memcpy(skb_put(nskb, 2), buf, 2);
  404. }
  405. read_lock(&data->lock);
  406. skb_queue_tail(&data->transmit_q, nskb);
  407. bfusb_tx_wakeup(data);
  408. read_unlock(&data->lock);
  409. kfree_skb(skb);
  410. return 0;
  411. }
  412. static void bfusb_destruct(struct hci_dev *hdev)
  413. {
  414. struct bfusb_data *data = hdev->driver_data;
  415. BT_DBG("hdev %p bfusb %p", hdev, data);
  416. kfree(data);
  417. }
  418. static int bfusb_ioctl(struct hci_dev *hdev, unsigned int cmd, unsigned long arg)
  419. {
  420. return -ENOIOCTLCMD;
  421. }
  422. static int bfusb_load_firmware(struct bfusb_data *data, unsigned char *firmware, int count)
  423. {
  424. unsigned char *buf;
  425. int err, pipe, len, size, sent = 0;
  426. BT_DBG("bfusb %p udev %p", data, data->udev);
  427. BT_INFO("BlueFRITZ! USB loading firmware");
  428. pipe = usb_sndctrlpipe(data->udev, 0);
  429. if (usb_control_msg(data->udev, pipe, USB_REQ_SET_CONFIGURATION,
  430. 0, 1, 0, NULL, 0, USB_CTRL_SET_TIMEOUT) < 0) {
  431. BT_ERR("Can't change to loading configuration");
  432. return -EBUSY;
  433. }
  434. data->udev->toggle[0] = data->udev->toggle[1] = 0;
  435. buf = kmalloc(BFUSB_MAX_BLOCK_SIZE + 3, GFP_ATOMIC);
  436. if (!buf) {
  437. BT_ERR("Can't allocate memory chunk for firmware");
  438. return -ENOMEM;
  439. }
  440. pipe = usb_sndbulkpipe(data->udev, data->bulk_out_ep);
  441. while (count) {
  442. size = min_t(uint, count, BFUSB_MAX_BLOCK_SIZE + 3);
  443. memcpy(buf, firmware + sent, size);
  444. err = usb_bulk_msg(data->udev, pipe, buf, size,
  445. &len, BFUSB_BLOCK_TIMEOUT);
  446. if (err || (len != size)) {
  447. BT_ERR("Error in firmware loading");
  448. goto error;
  449. }
  450. sent += size;
  451. count -= size;
  452. }
  453. err = usb_bulk_msg(data->udev, pipe, NULL, 0,
  454. &len, BFUSB_BLOCK_TIMEOUT);
  455. if (err < 0) {
  456. BT_ERR("Error in null packet request");
  457. goto error;
  458. }
  459. pipe = usb_sndctrlpipe(data->udev, 0);
  460. err = usb_control_msg(data->udev, pipe, USB_REQ_SET_CONFIGURATION,
  461. 0, 2, 0, NULL, 0, USB_CTRL_SET_TIMEOUT);
  462. if (err < 0) {
  463. BT_ERR("Can't change to running configuration");
  464. goto error;
  465. }
  466. data->udev->toggle[0] = data->udev->toggle[1] = 0;
  467. BT_INFO("BlueFRITZ! USB device ready");
  468. kfree(buf);
  469. return 0;
  470. error:
  471. kfree(buf);
  472. pipe = usb_sndctrlpipe(data->udev, 0);
  473. usb_control_msg(data->udev, pipe, USB_REQ_SET_CONFIGURATION,
  474. 0, 0, 0, NULL, 0, USB_CTRL_SET_TIMEOUT);
  475. return err;
  476. }
  477. static int bfusb_probe(struct usb_interface *intf, const struct usb_device_id *id)
  478. {
  479. const struct firmware *firmware;
  480. struct usb_device *udev = interface_to_usbdev(intf);
  481. struct usb_host_endpoint *bulk_out_ep;
  482. struct usb_host_endpoint *bulk_in_ep;
  483. struct hci_dev *hdev;
  484. struct bfusb_data *data;
  485. BT_DBG("intf %p id %p", intf, id);
  486. if (ignore)
  487. return -ENODEV;
  488. /* Check number of endpoints */
  489. if (intf->cur_altsetting->desc.bNumEndpoints < 2)
  490. return -EIO;
  491. bulk_out_ep = &intf->cur_altsetting->endpoint[0];
  492. bulk_in_ep = &intf->cur_altsetting->endpoint[1];
  493. if (!bulk_out_ep || !bulk_in_ep) {
  494. BT_ERR("Bulk endpoints not found");
  495. goto done;
  496. }
  497. /* Initialize control structure and load firmware */
  498. data = kzalloc(sizeof(struct bfusb_data), GFP_KERNEL);
  499. if (!data) {
  500. BT_ERR("Can't allocate memory for control structure");
  501. goto done;
  502. }
  503. data->udev = udev;
  504. data->bulk_in_ep = bulk_in_ep->desc.bEndpointAddress;
  505. data->bulk_out_ep = bulk_out_ep->desc.bEndpointAddress;
  506. data->bulk_pkt_size = le16_to_cpu(bulk_out_ep->desc.wMaxPacketSize);
  507. rwlock_init(&data->lock);
  508. data->reassembly = NULL;
  509. skb_queue_head_init(&data->transmit_q);
  510. skb_queue_head_init(&data->pending_q);
  511. skb_queue_head_init(&data->completed_q);
  512. if (request_firmware(&firmware, "bfubase.frm", &udev->dev) < 0) {
  513. BT_ERR("Firmware request failed");
  514. goto error;
  515. }
  516. BT_DBG("firmware data %p size %d", firmware->data, firmware->size);
  517. if (bfusb_load_firmware(data, firmware->data, firmware->size) < 0) {
  518. BT_ERR("Firmware loading failed");
  519. goto release;
  520. }
  521. release_firmware(firmware);
  522. /* Initialize and register HCI device */
  523. hdev = hci_alloc_dev();
  524. if (!hdev) {
  525. BT_ERR("Can't allocate HCI device");
  526. goto error;
  527. }
  528. data->hdev = hdev;
  529. hdev->type = HCI_USB;
  530. hdev->driver_data = data;
  531. SET_HCIDEV_DEV(hdev, &intf->dev);
  532. hdev->open = bfusb_open;
  533. hdev->close = bfusb_close;
  534. hdev->flush = bfusb_flush;
  535. hdev->send = bfusb_send_frame;
  536. hdev->destruct = bfusb_destruct;
  537. hdev->ioctl = bfusb_ioctl;
  538. hdev->owner = THIS_MODULE;
  539. if (hci_register_dev(hdev) < 0) {
  540. BT_ERR("Can't register HCI device");
  541. hci_free_dev(hdev);
  542. goto error;
  543. }
  544. usb_set_intfdata(intf, data);
  545. return 0;
  546. release:
  547. release_firmware(firmware);
  548. error:
  549. kfree(data);
  550. done:
  551. return -EIO;
  552. }
  553. static void bfusb_disconnect(struct usb_interface *intf)
  554. {
  555. struct bfusb_data *data = usb_get_intfdata(intf);
  556. struct hci_dev *hdev = data->hdev;
  557. BT_DBG("intf %p", intf);
  558. if (!hdev)
  559. return;
  560. usb_set_intfdata(intf, NULL);
  561. bfusb_close(hdev);
  562. if (hci_unregister_dev(hdev) < 0)
  563. BT_ERR("Can't unregister HCI device %s", hdev->name);
  564. hci_free_dev(hdev);
  565. }
  566. static struct usb_driver bfusb_driver = {
  567. .name = "bfusb",
  568. .probe = bfusb_probe,
  569. .disconnect = bfusb_disconnect,
  570. .id_table = bfusb_table,
  571. };
  572. static int __init bfusb_init(void)
  573. {
  574. int err;
  575. BT_INFO("BlueFRITZ! USB driver ver %s", VERSION);
  576. err = usb_register(&bfusb_driver);
  577. if (err < 0)
  578. BT_ERR("Failed to register BlueFRITZ! USB driver");
  579. return err;
  580. }
  581. static void __exit bfusb_exit(void)
  582. {
  583. usb_deregister(&bfusb_driver);
  584. }
  585. module_init(bfusb_init);
  586. module_exit(bfusb_exit);
  587. module_param(ignore, bool, 0644);
  588. MODULE_PARM_DESC(ignore, "Ignore devices from the matching table");
  589. MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
  590. MODULE_DESCRIPTION("BlueFRITZ! USB driver ver " VERSION);
  591. MODULE_VERSION(VERSION);
  592. MODULE_LICENSE("GPL");
  593. MODULE_FIRMWARE("bfubase.frm");