Version:  2.0.40 2.2.26 2.4.37 3.9 3.10 3.11 3.12 3.13 3.14 3.15 3.16 3.17 3.18 3.19 4.0 4.1 4.2 4.3 4.4 4.5 4.6

Linux/drivers/bluetooth/ath3k.c

  1 /*
  2  * Copyright (c) 2008-2009 Atheros Communications Inc.
  3  *
  4  *  This program is free software; you can redistribute it and/or modify
  5  *  it under the terms of the GNU General Public License as published by
  6  *  the Free Software Foundation; either version 2 of the License, or
  7  *  (at your option) any later version.
  8  *
  9  *  This program is distributed in the hope that it will be useful,
 10  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 11  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 12  *  GNU General Public License for more details.
 13  *
 14  *  You should have received a copy of the GNU General Public License
 15  *  along with this program; if not, write to the Free Software
 16  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 17  *
 18  */
 19 
 20 
 21 #include <linux/module.h>
 22 #include <linux/kernel.h>
 23 #include <linux/init.h>
 24 #include <linux/slab.h>
 25 #include <linux/types.h>
 26 #include <linux/errno.h>
 27 #include <linux/device.h>
 28 #include <linux/firmware.h>
 29 #include <linux/usb.h>
 30 #include <asm/unaligned.h>
 31 #include <net/bluetooth/bluetooth.h>
 32 
 33 #define VERSION "1.0"
 34 #define ATH3K_FIRMWARE  "ath3k-1.fw"
 35 
 36 #define ATH3K_DNLOAD                            0x01
 37 #define ATH3K_GETSTATE                          0x05
 38 #define ATH3K_SET_NORMAL_MODE                   0x07
 39 #define ATH3K_GETVERSION                        0x09
 40 #define USB_REG_SWITCH_VID_PID                  0x0a
 41 
 42 #define ATH3K_MODE_MASK                         0x3F
 43 #define ATH3K_NORMAL_MODE                       0x0E
 44 
 45 #define ATH3K_PATCH_UPDATE                      0x80
 46 #define ATH3K_SYSCFG_UPDATE                     0x40
 47 
 48 #define ATH3K_XTAL_FREQ_26M                     0x00
 49 #define ATH3K_XTAL_FREQ_40M                     0x01
 50 #define ATH3K_XTAL_FREQ_19P2                    0x02
 51 #define ATH3K_NAME_LEN                          0xFF
 52 
 53 struct ath3k_version {
 54         __le32  rom_version;
 55         __le32  build_version;
 56         __le32  ram_version;
 57         __u8    ref_clock;
 58         __u8    reserved[7];
 59 } __packed;
 60 
 61 static const struct usb_device_id ath3k_table[] = {
 62         /* Atheros AR3011 */
 63         { USB_DEVICE(0x0CF3, 0x3000) },
 64 
 65         /* Atheros AR3011 with sflash firmware*/
 66         { USB_DEVICE(0x0489, 0xE027) },
 67         { USB_DEVICE(0x0489, 0xE03D) },
 68         { USB_DEVICE(0x04F2, 0xAFF1) },
 69         { USB_DEVICE(0x0930, 0x0215) },
 70         { USB_DEVICE(0x0CF3, 0x3002) },
 71         { USB_DEVICE(0x0CF3, 0xE019) },
 72         { USB_DEVICE(0x13d3, 0x3304) },
 73 
 74         /* Atheros AR9285 Malbec with sflash firmware */
 75         { USB_DEVICE(0x03F0, 0x311D) },
 76 
 77         /* Atheros AR3012 with sflash firmware*/
 78         { USB_DEVICE(0x0489, 0xe04d) },
 79         { USB_DEVICE(0x0489, 0xe04e) },
 80         { USB_DEVICE(0x0489, 0xe057) },
 81         { USB_DEVICE(0x0489, 0xe056) },
 82         { USB_DEVICE(0x0489, 0xe05f) },
 83         { USB_DEVICE(0x0489, 0xe076) },
 84         { USB_DEVICE(0x0489, 0xe078) },
 85         { USB_DEVICE(0x0489, 0xe095) },
 86         { USB_DEVICE(0x04c5, 0x1330) },
 87         { USB_DEVICE(0x04CA, 0x3004) },
 88         { USB_DEVICE(0x04CA, 0x3005) },
 89         { USB_DEVICE(0x04CA, 0x3006) },
 90         { USB_DEVICE(0x04CA, 0x3007) },
 91         { USB_DEVICE(0x04CA, 0x3008) },
 92         { USB_DEVICE(0x04CA, 0x300b) },
 93         { USB_DEVICE(0x04CA, 0x300d) },
 94         { USB_DEVICE(0x04CA, 0x300f) },
 95         { USB_DEVICE(0x04CA, 0x3010) },
 96         { USB_DEVICE(0x04CA, 0x3014) },
 97         { USB_DEVICE(0x0930, 0x0219) },
 98         { USB_DEVICE(0x0930, 0x021c) },
 99         { USB_DEVICE(0x0930, 0x0220) },
100         { USB_DEVICE(0x0930, 0x0227) },
101         { USB_DEVICE(0x0b05, 0x17d0) },
102         { USB_DEVICE(0x0CF3, 0x0036) },
103         { USB_DEVICE(0x0CF3, 0x3004) },
104         { USB_DEVICE(0x0CF3, 0x3008) },
105         { USB_DEVICE(0x0CF3, 0x311D) },
106         { USB_DEVICE(0x0CF3, 0x311E) },
107         { USB_DEVICE(0x0CF3, 0x311F) },
108         { USB_DEVICE(0x0cf3, 0x3121) },
109         { USB_DEVICE(0x0CF3, 0x817a) },
110         { USB_DEVICE(0x0CF3, 0x817b) },
111         { USB_DEVICE(0x0cf3, 0xe003) },
112         { USB_DEVICE(0x0CF3, 0xE004) },
113         { USB_DEVICE(0x0CF3, 0xE005) },
114         { USB_DEVICE(0x0CF3, 0xE006) },
115         { USB_DEVICE(0x13d3, 0x3362) },
116         { USB_DEVICE(0x13d3, 0x3375) },
117         { USB_DEVICE(0x13d3, 0x3393) },
118         { USB_DEVICE(0x13d3, 0x3395) },
119         { USB_DEVICE(0x13d3, 0x3402) },
120         { USB_DEVICE(0x13d3, 0x3408) },
121         { USB_DEVICE(0x13d3, 0x3423) },
122         { USB_DEVICE(0x13d3, 0x3432) },
123         { USB_DEVICE(0x13d3, 0x3472) },
124         { USB_DEVICE(0x13d3, 0x3474) },
125 
126         /* Atheros AR5BBU12 with sflash firmware */
127         { USB_DEVICE(0x0489, 0xE02C) },
128 
129         /* Atheros AR5BBU22 with sflash firmware */
130         { USB_DEVICE(0x0489, 0xE036) },
131         { USB_DEVICE(0x0489, 0xE03C) },
132 
133         { }     /* Terminating entry */
134 };
135 
136 MODULE_DEVICE_TABLE(usb, ath3k_table);
137 
138 #define BTUSB_ATH3012           0x80
139 /* This table is to load patch and sysconfig files
140  * for AR3012 */
141 static const struct usb_device_id ath3k_blist_tbl[] = {
142 
143         /* Atheros AR3012 with sflash firmware*/
144         { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
145         { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
146         { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
147         { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
148         { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
149         { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
150         { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
151         { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 },
152         { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
153         { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
154         { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
155         { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
156         { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
157         { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
158         { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
159         { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
160         { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
161         { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
162         { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 },
163         { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
164         { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
165         { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
166         { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
167         { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
168         { USB_DEVICE(0x0CF3, 0x0036), .driver_info = BTUSB_ATH3012 },
169         { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
170         { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
171         { USB_DEVICE(0x0cf3, 0x311D), .driver_info = BTUSB_ATH3012 },
172         { USB_DEVICE(0x0cf3, 0x311E), .driver_info = BTUSB_ATH3012 },
173         { USB_DEVICE(0x0cf3, 0x311F), .driver_info = BTUSB_ATH3012 },
174         { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
175         { USB_DEVICE(0x0CF3, 0x817a), .driver_info = BTUSB_ATH3012 },
176         { USB_DEVICE(0x0CF3, 0x817b), .driver_info = BTUSB_ATH3012 },
177         { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
178         { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
179         { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
180         { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
181         { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
182         { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
183         { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
184         { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 },
185         { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
186         { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
187         { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
188         { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
189         { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 },
190         { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
191 
192         /* Atheros AR5BBU22 with sflash firmware */
193         { USB_DEVICE(0x0489, 0xE036), .driver_info = BTUSB_ATH3012 },
194         { USB_DEVICE(0x0489, 0xE03C), .driver_info = BTUSB_ATH3012 },
195 
196         { }     /* Terminating entry */
197 };
198 
199 #define USB_REQ_DFU_DNLOAD      1
200 #define BULK_SIZE               4096
201 #define FW_HDR_SIZE             20
202 #define TIMEGAP_USEC_MIN        50
203 #define TIMEGAP_USEC_MAX        100
204 
205 static int ath3k_load_firmware(struct usb_device *udev,
206                                 const struct firmware *firmware)
207 {
208         u8 *send_buf;
209         int err, pipe, len, size, sent = 0;
210         int count = firmware->size;
211 
212         BT_DBG("udev %p", udev);
213 
214         pipe = usb_sndctrlpipe(udev, 0);
215 
216         send_buf = kmalloc(BULK_SIZE, GFP_KERNEL);
217         if (!send_buf) {
218                 BT_ERR("Can't allocate memory chunk for firmware");
219                 return -ENOMEM;
220         }
221 
222         memcpy(send_buf, firmware->data, 20);
223         err = usb_control_msg(udev, pipe, USB_REQ_DFU_DNLOAD, USB_TYPE_VENDOR,
224                               0, 0, send_buf, 20, USB_CTRL_SET_TIMEOUT);
225         if (err < 0) {
226                 BT_ERR("Can't change to loading configuration err");
227                 goto error;
228         }
229         sent += 20;
230         count -= 20;
231 
232         pipe = usb_sndbulkpipe(udev, 0x02);
233 
234         while (count) {
235                 /* workaround the compatibility issue with xHCI controller*/
236                 usleep_range(TIMEGAP_USEC_MIN, TIMEGAP_USEC_MAX);
237 
238                 size = min_t(uint, count, BULK_SIZE);
239                 memcpy(send_buf, firmware->data + sent, size);
240 
241                 err = usb_bulk_msg(udev, pipe, send_buf, size,
242                                         &len, 3000);
243 
244                 if (err || (len != size)) {
245                         BT_ERR("Error in firmware loading err = %d,"
246                                 "len = %d, size = %d", err, len, size);
247                         goto error;
248                 }
249 
250                 sent  += size;
251                 count -= size;
252         }
253 
254 error:
255         kfree(send_buf);
256         return err;
257 }
258 
259 static int ath3k_get_state(struct usb_device *udev, unsigned char *state)
260 {
261         int ret, pipe = 0;
262         char *buf;
263 
264         buf = kmalloc(sizeof(*buf), GFP_KERNEL);
265         if (!buf)
266                 return -ENOMEM;
267 
268         pipe = usb_rcvctrlpipe(udev, 0);
269         ret = usb_control_msg(udev, pipe, ATH3K_GETSTATE,
270                               USB_TYPE_VENDOR | USB_DIR_IN, 0, 0,
271                               buf, sizeof(*buf), USB_CTRL_SET_TIMEOUT);
272 
273         *state = *buf;
274         kfree(buf);
275 
276         return ret;
277 }
278 
279 static int ath3k_get_version(struct usb_device *udev,
280                         struct ath3k_version *version)
281 {
282         int ret, pipe = 0;
283         struct ath3k_version *buf;
284         const int size = sizeof(*buf);
285 
286         buf = kmalloc(size, GFP_KERNEL);
287         if (!buf)
288                 return -ENOMEM;
289 
290         pipe = usb_rcvctrlpipe(udev, 0);
291         ret = usb_control_msg(udev, pipe, ATH3K_GETVERSION,
292                               USB_TYPE_VENDOR | USB_DIR_IN, 0, 0,
293                               buf, size, USB_CTRL_SET_TIMEOUT);
294 
295         memcpy(version, buf, size);
296         kfree(buf);
297 
298         return ret;
299 }
300 
301 static int ath3k_load_fwfile(struct usb_device *udev,
302                 const struct firmware *firmware)
303 {
304         u8 *send_buf;
305         int err, pipe, len, size, count, sent = 0;
306         int ret;
307 
308         count = firmware->size;
309 
310         send_buf = kmalloc(BULK_SIZE, GFP_KERNEL);
311         if (!send_buf) {
312                 BT_ERR("Can't allocate memory chunk for firmware");
313                 return -ENOMEM;
314         }
315 
316         size = min_t(uint, count, FW_HDR_SIZE);
317         memcpy(send_buf, firmware->data, size);
318 
319         pipe = usb_sndctrlpipe(udev, 0);
320         ret = usb_control_msg(udev, pipe, ATH3K_DNLOAD,
321                         USB_TYPE_VENDOR, 0, 0, send_buf,
322                         size, USB_CTRL_SET_TIMEOUT);
323         if (ret < 0) {
324                 BT_ERR("Can't change to loading configuration err");
325                 kfree(send_buf);
326                 return ret;
327         }
328 
329         sent += size;
330         count -= size;
331 
332         pipe = usb_sndbulkpipe(udev, 0x02);
333 
334         while (count) {
335                 /* workaround the compatibility issue with xHCI controller*/
336                 usleep_range(TIMEGAP_USEC_MIN, TIMEGAP_USEC_MAX);
337 
338                 size = min_t(uint, count, BULK_SIZE);
339                 memcpy(send_buf, firmware->data + sent, size);
340 
341                 err = usb_bulk_msg(udev, pipe, send_buf, size,
342                                         &len, 3000);
343                 if (err || (len != size)) {
344                         BT_ERR("Error in firmware loading err = %d,"
345                                 "len = %d, size = %d", err, len, size);
346                         kfree(send_buf);
347                         return err;
348                 }
349                 sent  += size;
350                 count -= size;
351         }
352 
353         kfree(send_buf);
354         return 0;
355 }
356 
357 static int ath3k_switch_pid(struct usb_device *udev)
358 {
359         int pipe = 0;
360 
361         pipe = usb_sndctrlpipe(udev, 0);
362         return usb_control_msg(udev, pipe, USB_REG_SWITCH_VID_PID,
363                         USB_TYPE_VENDOR, 0, 0,
364                         NULL, 0, USB_CTRL_SET_TIMEOUT);
365 }
366 
367 static int ath3k_set_normal_mode(struct usb_device *udev)
368 {
369         unsigned char fw_state;
370         int pipe = 0, ret;
371 
372         ret = ath3k_get_state(udev, &fw_state);
373         if (ret < 0) {
374                 BT_ERR("Can't get state to change to normal mode err");
375                 return ret;
376         }
377 
378         if ((fw_state & ATH3K_MODE_MASK) == ATH3K_NORMAL_MODE) {
379                 BT_DBG("firmware was already in normal mode");
380                 return 0;
381         }
382 
383         pipe = usb_sndctrlpipe(udev, 0);
384         return usb_control_msg(udev, pipe, ATH3K_SET_NORMAL_MODE,
385                         USB_TYPE_VENDOR, 0, 0,
386                         NULL, 0, USB_CTRL_SET_TIMEOUT);
387 }
388 
389 static int ath3k_load_patch(struct usb_device *udev)
390 {
391         unsigned char fw_state;
392         char filename[ATH3K_NAME_LEN] = {0};
393         const struct firmware *firmware;
394         struct ath3k_version fw_version;
395         __u32 pt_rom_version, pt_build_version;
396         int ret;
397 
398         ret = ath3k_get_state(udev, &fw_state);
399         if (ret < 0) {
400                 BT_ERR("Can't get state to change to load ram patch err");
401                 return ret;
402         }
403 
404         if (fw_state & ATH3K_PATCH_UPDATE) {
405                 BT_DBG("Patch was already downloaded");
406                 return 0;
407         }
408 
409         ret = ath3k_get_version(udev, &fw_version);
410         if (ret < 0) {
411                 BT_ERR("Can't get version to change to load ram patch err");
412                 return ret;
413         }
414 
415         snprintf(filename, ATH3K_NAME_LEN, "ar3k/AthrBT_0x%08x.dfu",
416                  le32_to_cpu(fw_version.rom_version));
417 
418         ret = request_firmware(&firmware, filename, &udev->dev);
419         if (ret < 0) {
420                 BT_ERR("Patch file not found %s", filename);
421                 return ret;
422         }
423 
424         pt_rom_version = get_unaligned_le32(firmware->data +
425                                             firmware->size - 8);
426         pt_build_version = get_unaligned_le32(firmware->data +
427                                               firmware->size - 4);
428 
429         if (pt_rom_version != le32_to_cpu(fw_version.rom_version) ||
430             pt_build_version <= le32_to_cpu(fw_version.build_version)) {
431                 BT_ERR("Patch file version did not match with firmware");
432                 release_firmware(firmware);
433                 return -EINVAL;
434         }
435 
436         ret = ath3k_load_fwfile(udev, firmware);
437         release_firmware(firmware);
438 
439         return ret;
440 }
441 
442 static int ath3k_load_syscfg(struct usb_device *udev)
443 {
444         unsigned char fw_state;
445         char filename[ATH3K_NAME_LEN] = {0};
446         const struct firmware *firmware;
447         struct ath3k_version fw_version;
448         int clk_value, ret;
449 
450         ret = ath3k_get_state(udev, &fw_state);
451         if (ret < 0) {
452                 BT_ERR("Can't get state to change to load configuration err");
453                 return -EBUSY;
454         }
455 
456         ret = ath3k_get_version(udev, &fw_version);
457         if (ret < 0) {
458                 BT_ERR("Can't get version to change to load ram patch err");
459                 return ret;
460         }
461 
462         switch (fw_version.ref_clock) {
463 
464         case ATH3K_XTAL_FREQ_26M:
465                 clk_value = 26;
466                 break;
467         case ATH3K_XTAL_FREQ_40M:
468                 clk_value = 40;
469                 break;
470         case ATH3K_XTAL_FREQ_19P2:
471                 clk_value = 19;
472                 break;
473         default:
474                 clk_value = 0;
475                 break;
476         }
477 
478         snprintf(filename, ATH3K_NAME_LEN, "ar3k/ramps_0x%08x_%d%s",
479                 le32_to_cpu(fw_version.rom_version), clk_value, ".dfu");
480 
481         ret = request_firmware(&firmware, filename, &udev->dev);
482         if (ret < 0) {
483                 BT_ERR("Configuration file not found %s", filename);
484                 return ret;
485         }
486 
487         ret = ath3k_load_fwfile(udev, firmware);
488         release_firmware(firmware);
489 
490         return ret;
491 }
492 
493 static int ath3k_probe(struct usb_interface *intf,
494                         const struct usb_device_id *id)
495 {
496         const struct firmware *firmware;
497         struct usb_device *udev = interface_to_usbdev(intf);
498         int ret;
499 
500         BT_DBG("intf %p id %p", intf, id);
501 
502         if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
503                 return -ENODEV;
504 
505         /* match device ID in ath3k blacklist table */
506         if (!id->driver_info) {
507                 const struct usb_device_id *match;
508 
509                 match = usb_match_id(intf, ath3k_blist_tbl);
510                 if (match)
511                         id = match;
512         }
513 
514         /* load patch and sysconfig files for AR3012 */
515         if (id->driver_info & BTUSB_ATH3012) {
516 
517                 /* New firmware with patch and sysconfig files already loaded */
518                 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x0001)
519                         return -ENODEV;
520 
521                 ret = ath3k_load_patch(udev);
522                 if (ret < 0) {
523                         BT_ERR("Loading patch file failed");
524                         return ret;
525                 }
526                 ret = ath3k_load_syscfg(udev);
527                 if (ret < 0) {
528                         BT_ERR("Loading sysconfig file failed");
529                         return ret;
530                 }
531                 ret = ath3k_set_normal_mode(udev);
532                 if (ret < 0) {
533                         BT_ERR("Set normal mode failed");
534                         return ret;
535                 }
536                 ath3k_switch_pid(udev);
537                 return 0;
538         }
539 
540         ret = request_firmware(&firmware, ATH3K_FIRMWARE, &udev->dev);
541         if (ret < 0) {
542                 if (ret == -ENOENT)
543                         BT_ERR("Firmware file \"%s\" not found",
544                                                         ATH3K_FIRMWARE);
545                 else
546                         BT_ERR("Firmware file \"%s\" request failed (err=%d)",
547                                                         ATH3K_FIRMWARE, ret);
548                 return ret;
549         }
550 
551         ret = ath3k_load_firmware(udev, firmware);
552         release_firmware(firmware);
553 
554         return ret;
555 }
556 
557 static void ath3k_disconnect(struct usb_interface *intf)
558 {
559         BT_DBG("ath3k_disconnect intf %p", intf);
560 }
561 
562 static struct usb_driver ath3k_driver = {
563         .name           = "ath3k",
564         .probe          = ath3k_probe,
565         .disconnect     = ath3k_disconnect,
566         .id_table       = ath3k_table,
567         .disable_hub_initiated_lpm = 1,
568 };
569 
570 module_usb_driver(ath3k_driver);
571 
572 MODULE_AUTHOR("Atheros Communications");
573 MODULE_DESCRIPTION("Atheros AR30xx firmware driver");
574 MODULE_VERSION(VERSION);
575 MODULE_LICENSE("GPL");
576 MODULE_FIRMWARE(ATH3K_FIRMWARE);
577 

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