ath3k.c 15 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541
  1. // SPDX-License-Identifier: GPL-2.0-or-later
  2. /*
  3. * Copyright (c) 2008-2009 Atheros Communications Inc.
  4. */
  5. #include <linux/module.h>
  6. #include <linux/kernel.h>
  7. #include <linux/init.h>
  8. #include <linux/slab.h>
  9. #include <linux/types.h>
  10. #include <linux/errno.h>
  11. #include <linux/device.h>
  12. #include <linux/firmware.h>
  13. #include <linux/usb.h>
  14. #include <asm/unaligned.h>
  15. #include <net/bluetooth/bluetooth.h>
  16. #define VERSION "1.0"
  17. #define ATH3K_FIRMWARE "ath3k-1.fw"
  18. #define ATH3K_DNLOAD 0x01
  19. #define ATH3K_GETSTATE 0x05
  20. #define ATH3K_SET_NORMAL_MODE 0x07
  21. #define ATH3K_GETVERSION 0x09
  22. #define USB_REG_SWITCH_VID_PID 0x0a
  23. #define ATH3K_MODE_MASK 0x3F
  24. #define ATH3K_NORMAL_MODE 0x0E
  25. #define ATH3K_PATCH_UPDATE 0x80
  26. #define ATH3K_SYSCFG_UPDATE 0x40
  27. #define ATH3K_XTAL_FREQ_26M 0x00
  28. #define ATH3K_XTAL_FREQ_40M 0x01
  29. #define ATH3K_XTAL_FREQ_19P2 0x02
  30. #define ATH3K_NAME_LEN 0xFF
  31. struct ath3k_version {
  32. __le32 rom_version;
  33. __le32 build_version;
  34. __le32 ram_version;
  35. __u8 ref_clock;
  36. __u8 reserved[7];
  37. } __packed;
  38. static const struct usb_device_id ath3k_table[] = {
  39. /* Atheros AR3011 */
  40. { USB_DEVICE(0x0CF3, 0x3000) },
  41. /* Atheros AR3011 with sflash firmware*/
  42. { USB_DEVICE(0x0489, 0xE027) },
  43. { USB_DEVICE(0x0489, 0xE03D) },
  44. { USB_DEVICE(0x04F2, 0xAFF1) },
  45. { USB_DEVICE(0x0930, 0x0215) },
  46. { USB_DEVICE(0x0CF3, 0x3002) },
  47. { USB_DEVICE(0x0CF3, 0xE019) },
  48. { USB_DEVICE(0x13d3, 0x3304) },
  49. /* Atheros AR9285 Malbec with sflash firmware */
  50. { USB_DEVICE(0x03F0, 0x311D) },
  51. /* Atheros AR3012 with sflash firmware*/
  52. { USB_DEVICE(0x0489, 0xe04d) },
  53. { USB_DEVICE(0x0489, 0xe04e) },
  54. { USB_DEVICE(0x0489, 0xe057) },
  55. { USB_DEVICE(0x0489, 0xe056) },
  56. { USB_DEVICE(0x0489, 0xe05f) },
  57. { USB_DEVICE(0x0489, 0xe076) },
  58. { USB_DEVICE(0x0489, 0xe078) },
  59. { USB_DEVICE(0x0489, 0xe095) },
  60. { USB_DEVICE(0x04c5, 0x1330) },
  61. { USB_DEVICE(0x04CA, 0x3004) },
  62. { USB_DEVICE(0x04CA, 0x3005) },
  63. { USB_DEVICE(0x04CA, 0x3006) },
  64. { USB_DEVICE(0x04CA, 0x3007) },
  65. { USB_DEVICE(0x04CA, 0x3008) },
  66. { USB_DEVICE(0x04CA, 0x300b) },
  67. { USB_DEVICE(0x04CA, 0x300d) },
  68. { USB_DEVICE(0x04CA, 0x300f) },
  69. { USB_DEVICE(0x04CA, 0x3010) },
  70. { USB_DEVICE(0x04CA, 0x3014) },
  71. { USB_DEVICE(0x04CA, 0x3018) },
  72. { USB_DEVICE(0x0930, 0x0219) },
  73. { USB_DEVICE(0x0930, 0x021c) },
  74. { USB_DEVICE(0x0930, 0x0220) },
  75. { USB_DEVICE(0x0930, 0x0227) },
  76. { USB_DEVICE(0x0b05, 0x17d0) },
  77. { USB_DEVICE(0x0CF3, 0x0036) },
  78. { USB_DEVICE(0x0CF3, 0x3004) },
  79. { USB_DEVICE(0x0CF3, 0x3008) },
  80. { USB_DEVICE(0x0CF3, 0x311D) },
  81. { USB_DEVICE(0x0CF3, 0x311E) },
  82. { USB_DEVICE(0x0CF3, 0x311F) },
  83. { USB_DEVICE(0x0cf3, 0x3121) },
  84. { USB_DEVICE(0x0CF3, 0x817a) },
  85. { USB_DEVICE(0x0CF3, 0x817b) },
  86. { USB_DEVICE(0x0cf3, 0xe003) },
  87. { USB_DEVICE(0x0CF3, 0xE004) },
  88. { USB_DEVICE(0x0CF3, 0xE005) },
  89. { USB_DEVICE(0x0CF3, 0xE006) },
  90. { USB_DEVICE(0x13d3, 0x3362) },
  91. { USB_DEVICE(0x13d3, 0x3375) },
  92. { USB_DEVICE(0x13d3, 0x3393) },
  93. { USB_DEVICE(0x13d3, 0x3395) },
  94. { USB_DEVICE(0x13d3, 0x3402) },
  95. { USB_DEVICE(0x13d3, 0x3408) },
  96. { USB_DEVICE(0x13d3, 0x3423) },
  97. { USB_DEVICE(0x13d3, 0x3432) },
  98. { USB_DEVICE(0x13d3, 0x3472) },
  99. { USB_DEVICE(0x13d3, 0x3474) },
  100. { USB_DEVICE(0x13d3, 0x3487) },
  101. { USB_DEVICE(0x13d3, 0x3490) },
  102. /* Atheros AR5BBU12 with sflash firmware */
  103. { USB_DEVICE(0x0489, 0xE02C) },
  104. /* Atheros AR5BBU22 with sflash firmware */
  105. { USB_DEVICE(0x0489, 0xE036) },
  106. { USB_DEVICE(0x0489, 0xE03C) },
  107. { } /* Terminating entry */
  108. };
  109. MODULE_DEVICE_TABLE(usb, ath3k_table);
  110. #define BTUSB_ATH3012 0x80
  111. /* This table is to load patch and sysconfig files
  112. * for AR3012
  113. */
  114. static const struct usb_device_id ath3k_blist_tbl[] = {
  115. /* Atheros AR3012 with sflash firmware*/
  116. { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
  117. { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
  118. { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
  119. { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
  120. { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
  121. { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
  122. { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
  123. { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 },
  124. { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
  125. { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
  126. { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
  127. { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
  128. { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
  129. { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
  130. { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
  131. { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
  132. { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
  133. { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
  134. { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 },
  135. { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 },
  136. { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
  137. { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
  138. { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
  139. { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
  140. { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
  141. { USB_DEVICE(0x0CF3, 0x0036), .driver_info = BTUSB_ATH3012 },
  142. { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
  143. { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
  144. { USB_DEVICE(0x0cf3, 0x311D), .driver_info = BTUSB_ATH3012 },
  145. { USB_DEVICE(0x0cf3, 0x311E), .driver_info = BTUSB_ATH3012 },
  146. { USB_DEVICE(0x0cf3, 0x311F), .driver_info = BTUSB_ATH3012 },
  147. { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
  148. { USB_DEVICE(0x0CF3, 0x817a), .driver_info = BTUSB_ATH3012 },
  149. { USB_DEVICE(0x0CF3, 0x817b), .driver_info = BTUSB_ATH3012 },
  150. { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
  151. { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
  152. { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
  153. { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
  154. { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
  155. { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
  156. { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
  157. { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 },
  158. { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
  159. { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
  160. { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
  161. { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
  162. { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 },
  163. { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
  164. { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 },
  165. { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 },
  166. /* Atheros AR5BBU22 with sflash firmware */
  167. { USB_DEVICE(0x0489, 0xE036), .driver_info = BTUSB_ATH3012 },
  168. { USB_DEVICE(0x0489, 0xE03C), .driver_info = BTUSB_ATH3012 },
  169. { } /* Terminating entry */
  170. };
  171. static inline void ath3k_log_failed_loading(int err, int len, int size,
  172. int count)
  173. {
  174. BT_ERR("Firmware loading err = %d, len = %d, size = %d, count = %d",
  175. err, len, size, count);
  176. }
  177. #define USB_REQ_DFU_DNLOAD 1
  178. #define BULK_SIZE 4096
  179. #define FW_HDR_SIZE 20
  180. #define TIMEGAP_USEC_MIN 50
  181. #define TIMEGAP_USEC_MAX 100
  182. static int ath3k_load_firmware(struct usb_device *udev,
  183. const struct firmware *firmware)
  184. {
  185. u8 *send_buf;
  186. int len = 0;
  187. int err, pipe, size, sent = 0;
  188. int count = firmware->size;
  189. BT_DBG("udev %p", udev);
  190. send_buf = kmalloc(BULK_SIZE, GFP_KERNEL);
  191. if (!send_buf) {
  192. BT_ERR("Can't allocate memory chunk for firmware");
  193. return -ENOMEM;
  194. }
  195. err = usb_control_msg_send(udev, 0, USB_REQ_DFU_DNLOAD, USB_TYPE_VENDOR,
  196. 0, 0, firmware->data, FW_HDR_SIZE,
  197. USB_CTRL_SET_TIMEOUT, GFP_KERNEL);
  198. if (err) {
  199. BT_ERR("Can't change to loading configuration err");
  200. goto error;
  201. }
  202. sent += FW_HDR_SIZE;
  203. count -= FW_HDR_SIZE;
  204. pipe = usb_sndbulkpipe(udev, 0x02);
  205. while (count) {
  206. /* workaround the compatibility issue with xHCI controller*/
  207. usleep_range(TIMEGAP_USEC_MIN, TIMEGAP_USEC_MAX);
  208. size = min_t(uint, count, BULK_SIZE);
  209. memcpy(send_buf, firmware->data + sent, size);
  210. err = usb_bulk_msg(udev, pipe, send_buf, size,
  211. &len, 3000);
  212. if (err || (len != size)) {
  213. ath3k_log_failed_loading(err, len, size, count);
  214. goto error;
  215. }
  216. sent += size;
  217. count -= size;
  218. }
  219. error:
  220. kfree(send_buf);
  221. return err;
  222. }
  223. static int ath3k_get_state(struct usb_device *udev, unsigned char *state)
  224. {
  225. return usb_control_msg_recv(udev, 0, ATH3K_GETSTATE,
  226. USB_TYPE_VENDOR | USB_DIR_IN, 0, 0,
  227. state, 1, USB_CTRL_SET_TIMEOUT,
  228. GFP_KERNEL);
  229. }
  230. static int ath3k_get_version(struct usb_device *udev,
  231. struct ath3k_version *version)
  232. {
  233. return usb_control_msg_recv(udev, 0, ATH3K_GETVERSION,
  234. USB_TYPE_VENDOR | USB_DIR_IN, 0, 0,
  235. version, sizeof(*version), USB_CTRL_SET_TIMEOUT,
  236. GFP_KERNEL);
  237. }
  238. static int ath3k_load_fwfile(struct usb_device *udev,
  239. const struct firmware *firmware)
  240. {
  241. u8 *send_buf;
  242. int len = 0;
  243. int err, pipe, size, count, sent = 0;
  244. int ret;
  245. count = firmware->size;
  246. send_buf = kmalloc(BULK_SIZE, GFP_KERNEL);
  247. if (!send_buf) {
  248. BT_ERR("Can't allocate memory chunk for firmware");
  249. return -ENOMEM;
  250. }
  251. size = min_t(uint, count, FW_HDR_SIZE);
  252. ret = usb_control_msg_send(udev, 0, ATH3K_DNLOAD, USB_TYPE_VENDOR, 0, 0,
  253. firmware->data, size, USB_CTRL_SET_TIMEOUT,
  254. GFP_KERNEL);
  255. if (ret) {
  256. BT_ERR("Can't change to loading configuration err");
  257. kfree(send_buf);
  258. return ret;
  259. }
  260. sent += size;
  261. count -= size;
  262. pipe = usb_sndbulkpipe(udev, 0x02);
  263. while (count) {
  264. /* workaround the compatibility issue with xHCI controller*/
  265. usleep_range(TIMEGAP_USEC_MIN, TIMEGAP_USEC_MAX);
  266. size = min_t(uint, count, BULK_SIZE);
  267. memcpy(send_buf, firmware->data + sent, size);
  268. err = usb_bulk_msg(udev, pipe, send_buf, size,
  269. &len, 3000);
  270. if (err || (len != size)) {
  271. ath3k_log_failed_loading(err, len, size, count);
  272. kfree(send_buf);
  273. return err;
  274. }
  275. sent += size;
  276. count -= size;
  277. }
  278. kfree(send_buf);
  279. return 0;
  280. }
  281. static void ath3k_switch_pid(struct usb_device *udev)
  282. {
  283. usb_control_msg_send(udev, 0, USB_REG_SWITCH_VID_PID, USB_TYPE_VENDOR,
  284. 0, 0, NULL, 0, USB_CTRL_SET_TIMEOUT, GFP_KERNEL);
  285. }
  286. static int ath3k_set_normal_mode(struct usb_device *udev)
  287. {
  288. unsigned char fw_state;
  289. int ret;
  290. ret = ath3k_get_state(udev, &fw_state);
  291. if (ret) {
  292. BT_ERR("Can't get state to change to normal mode err");
  293. return ret;
  294. }
  295. if ((fw_state & ATH3K_MODE_MASK) == ATH3K_NORMAL_MODE) {
  296. BT_DBG("firmware was already in normal mode");
  297. return 0;
  298. }
  299. return usb_control_msg_send(udev, 0, ATH3K_SET_NORMAL_MODE,
  300. USB_TYPE_VENDOR, 0, 0, NULL, 0,
  301. USB_CTRL_SET_TIMEOUT, GFP_KERNEL);
  302. }
  303. static int ath3k_load_patch(struct usb_device *udev)
  304. {
  305. unsigned char fw_state;
  306. char filename[ATH3K_NAME_LEN];
  307. const struct firmware *firmware;
  308. struct ath3k_version fw_version;
  309. __u32 pt_rom_version, pt_build_version;
  310. int ret;
  311. ret = ath3k_get_state(udev, &fw_state);
  312. if (ret) {
  313. BT_ERR("Can't get state to change to load ram patch err");
  314. return ret;
  315. }
  316. if (fw_state & ATH3K_PATCH_UPDATE) {
  317. BT_DBG("Patch was already downloaded");
  318. return 0;
  319. }
  320. ret = ath3k_get_version(udev, &fw_version);
  321. if (ret) {
  322. BT_ERR("Can't get version to change to load ram patch err");
  323. return ret;
  324. }
  325. snprintf(filename, ATH3K_NAME_LEN, "ar3k/AthrBT_0x%08x.dfu",
  326. le32_to_cpu(fw_version.rom_version));
  327. ret = request_firmware(&firmware, filename, &udev->dev);
  328. if (ret < 0) {
  329. BT_ERR("Patch file not found %s", filename);
  330. return ret;
  331. }
  332. pt_rom_version = get_unaligned_le32(firmware->data +
  333. firmware->size - 8);
  334. pt_build_version = get_unaligned_le32(firmware->data +
  335. firmware->size - 4);
  336. if (pt_rom_version != le32_to_cpu(fw_version.rom_version) ||
  337. pt_build_version <= le32_to_cpu(fw_version.build_version)) {
  338. BT_ERR("Patch file version did not match with firmware");
  339. release_firmware(firmware);
  340. return -EINVAL;
  341. }
  342. ret = ath3k_load_fwfile(udev, firmware);
  343. release_firmware(firmware);
  344. return ret;
  345. }
  346. static int ath3k_load_syscfg(struct usb_device *udev)
  347. {
  348. unsigned char fw_state;
  349. char filename[ATH3K_NAME_LEN];
  350. const struct firmware *firmware;
  351. struct ath3k_version fw_version;
  352. int clk_value, ret;
  353. ret = ath3k_get_state(udev, &fw_state);
  354. if (ret) {
  355. BT_ERR("Can't get state to change to load configuration err");
  356. return -EBUSY;
  357. }
  358. ret = ath3k_get_version(udev, &fw_version);
  359. if (ret) {
  360. BT_ERR("Can't get version to change to load ram patch err");
  361. return ret;
  362. }
  363. switch (fw_version.ref_clock) {
  364. case ATH3K_XTAL_FREQ_26M:
  365. clk_value = 26;
  366. break;
  367. case ATH3K_XTAL_FREQ_40M:
  368. clk_value = 40;
  369. break;
  370. case ATH3K_XTAL_FREQ_19P2:
  371. clk_value = 19;
  372. break;
  373. default:
  374. clk_value = 0;
  375. break;
  376. }
  377. snprintf(filename, ATH3K_NAME_LEN, "ar3k/ramps_0x%08x_%d%s",
  378. le32_to_cpu(fw_version.rom_version), clk_value, ".dfu");
  379. ret = request_firmware(&firmware, filename, &udev->dev);
  380. if (ret < 0) {
  381. BT_ERR("Configuration file not found %s", filename);
  382. return ret;
  383. }
  384. ret = ath3k_load_fwfile(udev, firmware);
  385. release_firmware(firmware);
  386. return ret;
  387. }
  388. static int ath3k_probe(struct usb_interface *intf,
  389. const struct usb_device_id *id)
  390. {
  391. const struct firmware *firmware;
  392. struct usb_device *udev = interface_to_usbdev(intf);
  393. int ret;
  394. BT_DBG("intf %p id %p", intf, id);
  395. if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
  396. return -ENODEV;
  397. /* match device ID in ath3k blacklist table */
  398. if (!id->driver_info) {
  399. const struct usb_device_id *match;
  400. match = usb_match_id(intf, ath3k_blist_tbl);
  401. if (match)
  402. id = match;
  403. }
  404. /* load patch and sysconfig files for AR3012 */
  405. if (id->driver_info & BTUSB_ATH3012) {
  406. /* New firmware with patch and sysconfig files already loaded */
  407. if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x0001)
  408. return -ENODEV;
  409. ret = ath3k_load_patch(udev);
  410. if (ret < 0) {
  411. BT_ERR("Loading patch file failed");
  412. return ret;
  413. }
  414. ret = ath3k_load_syscfg(udev);
  415. if (ret < 0) {
  416. BT_ERR("Loading sysconfig file failed");
  417. return ret;
  418. }
  419. ret = ath3k_set_normal_mode(udev);
  420. if (ret) {
  421. BT_ERR("Set normal mode failed");
  422. return ret;
  423. }
  424. ath3k_switch_pid(udev);
  425. return 0;
  426. }
  427. ret = request_firmware(&firmware, ATH3K_FIRMWARE, &udev->dev);
  428. if (ret < 0) {
  429. if (ret == -ENOENT)
  430. BT_ERR("Firmware file \"%s\" not found",
  431. ATH3K_FIRMWARE);
  432. else
  433. BT_ERR("Firmware file \"%s\" request failed (err=%d)",
  434. ATH3K_FIRMWARE, ret);
  435. return ret;
  436. }
  437. ret = ath3k_load_firmware(udev, firmware);
  438. release_firmware(firmware);
  439. return ret;
  440. }
  441. static void ath3k_disconnect(struct usb_interface *intf)
  442. {
  443. BT_DBG("%s intf %p", __func__, intf);
  444. }
  445. static struct usb_driver ath3k_driver = {
  446. .name = "ath3k",
  447. .probe = ath3k_probe,
  448. .disconnect = ath3k_disconnect,
  449. .id_table = ath3k_table,
  450. .disable_hub_initiated_lpm = 1,
  451. };
  452. module_usb_driver(ath3k_driver);
  453. MODULE_AUTHOR("Atheros Communications");
  454. MODULE_DESCRIPTION("Atheros AR30xx firmware driver");
  455. MODULE_VERSION(VERSION);
  456. MODULE_LICENSE("GPL");
  457. MODULE_FIRMWARE(ATH3K_FIRMWARE);