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9670d80a VK |
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 <net/bluetooth/bluetooth.h> | |
31 | ||
32 | #define VERSION "1.0" | |
c3eae82a | 33 | #define ATH3K_FIRMWARE "ath3k-1.fw" |
9670d80a | 34 | |
d9f51b51 BS |
35 | #define ATH3K_DNLOAD 0x01 |
36 | #define ATH3K_GETSTATE 0x05 | |
37 | #define ATH3K_SET_NORMAL_MODE 0x07 | |
38 | #define ATH3K_GETVERSION 0x09 | |
39 | #define USB_REG_SWITCH_VID_PID 0x0a | |
40 | ||
41 | #define ATH3K_MODE_MASK 0x3F | |
42 | #define ATH3K_NORMAL_MODE 0x0E | |
43 | ||
44 | #define ATH3K_PATCH_UPDATE 0x80 | |
45 | #define ATH3K_SYSCFG_UPDATE 0x40 | |
46 | ||
47 | #define ATH3K_XTAL_FREQ_26M 0x00 | |
48 | #define ATH3K_XTAL_FREQ_40M 0x01 | |
49 | #define ATH3K_XTAL_FREQ_19P2 0x02 | |
50 | #define ATH3K_NAME_LEN 0xFF | |
51 | ||
52 | struct ath3k_version { | |
53 | unsigned int rom_version; | |
54 | unsigned int build_version; | |
55 | unsigned int ram_version; | |
56 | unsigned char ref_clock; | |
57 | unsigned char reserved[0x07]; | |
58 | }; | |
9670d80a VK |
59 | |
60 | static struct usb_device_id ath3k_table[] = { | |
61 | /* Atheros AR3011 */ | |
62 | { USB_DEVICE(0x0CF3, 0x3000) }, | |
be93112a BS |
63 | |
64 | /* Atheros AR3011 with sflash firmware*/ | |
65 | { USB_DEVICE(0x0CF3, 0x3002) }, | |
6eda541d | 66 | { USB_DEVICE(0x0CF3, 0xE019) }, |
2a7bcccc | 67 | { USB_DEVICE(0x13d3, 0x3304) }, |
8e7c3d2e | 68 | { USB_DEVICE(0x0930, 0x0215) }, |
6b6ba88b | 69 | { USB_DEVICE(0x0489, 0xE03D) }, |
acd94544 | 70 | { USB_DEVICE(0x0489, 0xE027) }, |
be93112a | 71 | |
509e7861 CYC |
72 | /* Atheros AR9285 Malbec with sflash firmware */ |
73 | { USB_DEVICE(0x03F0, 0x311D) }, | |
d9f51b51 BS |
74 | |
75 | /* Atheros AR3012 with sflash firmware*/ | |
76 | { USB_DEVICE(0x0CF3, 0x3004) }, | |
07c0ea87 | 77 | { USB_DEVICE(0x0CF3, 0x311D) }, |
9498ba7a | 78 | { USB_DEVICE(0x13d3, 0x3375) }, |
55ed7d4d | 79 | { USB_DEVICE(0x04CA, 0x3005) }, |
2c262b2a | 80 | { USB_DEVICE(0x04CA, 0x3006) }, |
87522a43 | 81 | { USB_DEVICE(0x13d3, 0x3362) }, |
ac71311e | 82 | { USB_DEVICE(0x0CF3, 0xE004) }, |
6c4ae5c2 | 83 | { USB_DEVICE(0x0930, 0x0219) }, |
2096ae6c | 84 | { USB_DEVICE(0x0489, 0xe057) }, |
eed307e2 | 85 | { USB_DEVICE(0x13d3, 0x3393) }, |
3a61eda8 | 86 | { USB_DEVICE(0x0489, 0xe04e) }, |
d9f51b51 | 87 | |
e9036e33 CYC |
88 | /* Atheros AR5BBU12 with sflash firmware */ |
89 | { USB_DEVICE(0x0489, 0xE02C) }, | |
b67afe7f | 90 | |
85d59726 MG |
91 | /* Atheros AR5BBU22 with sflash firmware */ |
92 | { USB_DEVICE(0x0489, 0xE03C) }, | |
bc21fde2 | 93 | { USB_DEVICE(0x0489, 0xE036) }, |
85d59726 | 94 | |
9670d80a VK |
95 | { } /* Terminating entry */ |
96 | }; | |
97 | ||
98 | MODULE_DEVICE_TABLE(usb, ath3k_table); | |
99 | ||
d9f51b51 BS |
100 | #define BTUSB_ATH3012 0x80 |
101 | /* This table is to load patch and sysconfig files | |
102 | * for AR3012 */ | |
103 | static struct usb_device_id ath3k_blist_tbl[] = { | |
104 | ||
105 | /* Atheros AR3012 with sflash firmware*/ | |
106 | { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 }, | |
07c0ea87 | 107 | { USB_DEVICE(0x0cf3, 0x311D), .driver_info = BTUSB_ATH3012 }, |
9498ba7a | 108 | { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 }, |
55ed7d4d | 109 | { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 }, |
2c262b2a | 110 | { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 }, |
87522a43 | 111 | { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 }, |
ac71311e | 112 | { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 }, |
6c4ae5c2 | 113 | { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 }, |
2096ae6c | 114 | { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 }, |
eed307e2 | 115 | { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 }, |
3a61eda8 | 116 | { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 }, |
d9f51b51 | 117 | |
85d59726 MG |
118 | /* Atheros AR5BBU22 with sflash firmware */ |
119 | { USB_DEVICE(0x0489, 0xE03C), .driver_info = BTUSB_ATH3012 }, | |
bc21fde2 | 120 | { USB_DEVICE(0x0489, 0xE036), .driver_info = BTUSB_ATH3012 }, |
85d59726 | 121 | |
d9f51b51 BS |
122 | { } /* Terminating entry */ |
123 | }; | |
124 | ||
9670d80a VK |
125 | #define USB_REQ_DFU_DNLOAD 1 |
126 | #define BULK_SIZE 4096 | |
d9f51b51 | 127 | #define FW_HDR_SIZE 20 |
9670d80a | 128 | |
86e09287 AH |
129 | static int ath3k_load_firmware(struct usb_device *udev, |
130 | const struct firmware *firmware) | |
9670d80a VK |
131 | { |
132 | u8 *send_buf; | |
133 | int err, pipe, len, size, sent = 0; | |
86e09287 | 134 | int count = firmware->size; |
9670d80a | 135 | |
86e09287 | 136 | BT_DBG("udev %p", udev); |
9670d80a | 137 | |
86e09287 | 138 | pipe = usb_sndctrlpipe(udev, 0); |
9670d80a | 139 | |
52a1020e | 140 | send_buf = kmalloc(BULK_SIZE, GFP_KERNEL); |
86e09287 AH |
141 | if (!send_buf) { |
142 | BT_ERR("Can't allocate memory chunk for firmware"); | |
143 | return -ENOMEM; | |
144 | } | |
145 | ||
146 | memcpy(send_buf, firmware->data, 20); | |
147 | if ((err = usb_control_msg(udev, pipe, | |
9670d80a VK |
148 | USB_REQ_DFU_DNLOAD, |
149 | USB_TYPE_VENDOR, 0, 0, | |
86e09287 | 150 | send_buf, 20, USB_CTRL_SET_TIMEOUT)) < 0) { |
9670d80a | 151 | BT_ERR("Can't change to loading configuration err"); |
86e09287 | 152 | goto error; |
9670d80a VK |
153 | } |
154 | sent += 20; | |
155 | count -= 20; | |
156 | ||
9670d80a VK |
157 | while (count) { |
158 | size = min_t(uint, count, BULK_SIZE); | |
86e09287 AH |
159 | pipe = usb_sndbulkpipe(udev, 0x02); |
160 | memcpy(send_buf, firmware->data + sent, size); | |
9670d80a | 161 | |
86e09287 | 162 | err = usb_bulk_msg(udev, pipe, send_buf, size, |
9670d80a VK |
163 | &len, 3000); |
164 | ||
165 | if (err || (len != size)) { | |
166 | BT_ERR("Error in firmware loading err = %d," | |
167 | "len = %d, size = %d", err, len, size); | |
168 | goto error; | |
169 | } | |
170 | ||
171 | sent += size; | |
172 | count -= size; | |
173 | } | |
174 | ||
9670d80a VK |
175 | error: |
176 | kfree(send_buf); | |
177 | return err; | |
178 | } | |
179 | ||
d9f51b51 BS |
180 | static int ath3k_get_state(struct usb_device *udev, unsigned char *state) |
181 | { | |
182 | int pipe = 0; | |
183 | ||
184 | pipe = usb_rcvctrlpipe(udev, 0); | |
185 | return usb_control_msg(udev, pipe, ATH3K_GETSTATE, | |
186 | USB_TYPE_VENDOR | USB_DIR_IN, 0, 0, | |
187 | state, 0x01, USB_CTRL_SET_TIMEOUT); | |
188 | } | |
189 | ||
190 | static int ath3k_get_version(struct usb_device *udev, | |
191 | struct ath3k_version *version) | |
192 | { | |
193 | int pipe = 0; | |
194 | ||
195 | pipe = usb_rcvctrlpipe(udev, 0); | |
196 | return usb_control_msg(udev, pipe, ATH3K_GETVERSION, | |
197 | USB_TYPE_VENDOR | USB_DIR_IN, 0, 0, version, | |
198 | sizeof(struct ath3k_version), | |
199 | USB_CTRL_SET_TIMEOUT); | |
200 | } | |
201 | ||
202 | static int ath3k_load_fwfile(struct usb_device *udev, | |
203 | const struct firmware *firmware) | |
204 | { | |
205 | u8 *send_buf; | |
206 | int err, pipe, len, size, count, sent = 0; | |
207 | int ret; | |
208 | ||
209 | count = firmware->size; | |
210 | ||
52a1020e | 211 | send_buf = kmalloc(BULK_SIZE, GFP_KERNEL); |
d9f51b51 BS |
212 | if (!send_buf) { |
213 | BT_ERR("Can't allocate memory chunk for firmware"); | |
214 | return -ENOMEM; | |
215 | } | |
216 | ||
217 | size = min_t(uint, count, FW_HDR_SIZE); | |
218 | memcpy(send_buf, firmware->data, size); | |
219 | ||
220 | pipe = usb_sndctrlpipe(udev, 0); | |
221 | ret = usb_control_msg(udev, pipe, ATH3K_DNLOAD, | |
222 | USB_TYPE_VENDOR, 0, 0, send_buf, | |
223 | size, USB_CTRL_SET_TIMEOUT); | |
224 | if (ret < 0) { | |
225 | BT_ERR("Can't change to loading configuration err"); | |
226 | kfree(send_buf); | |
227 | return ret; | |
228 | } | |
229 | ||
230 | sent += size; | |
231 | count -= size; | |
232 | ||
233 | while (count) { | |
234 | size = min_t(uint, count, BULK_SIZE); | |
235 | pipe = usb_sndbulkpipe(udev, 0x02); | |
236 | ||
237 | memcpy(send_buf, firmware->data + sent, size); | |
238 | ||
239 | err = usb_bulk_msg(udev, pipe, send_buf, size, | |
240 | &len, 3000); | |
241 | if (err || (len != size)) { | |
242 | BT_ERR("Error in firmware loading err = %d," | |
243 | "len = %d, size = %d", err, len, size); | |
244 | kfree(send_buf); | |
245 | return err; | |
246 | } | |
247 | sent += size; | |
248 | count -= size; | |
249 | } | |
250 | ||
251 | kfree(send_buf); | |
252 | return 0; | |
253 | } | |
254 | ||
255 | static int ath3k_switch_pid(struct usb_device *udev) | |
256 | { | |
257 | int pipe = 0; | |
258 | ||
259 | pipe = usb_sndctrlpipe(udev, 0); | |
260 | return usb_control_msg(udev, pipe, USB_REG_SWITCH_VID_PID, | |
261 | USB_TYPE_VENDOR, 0, 0, | |
262 | NULL, 0, USB_CTRL_SET_TIMEOUT); | |
263 | } | |
264 | ||
265 | static int ath3k_set_normal_mode(struct usb_device *udev) | |
266 | { | |
267 | unsigned char fw_state; | |
268 | int pipe = 0, ret; | |
269 | ||
270 | ret = ath3k_get_state(udev, &fw_state); | |
271 | if (ret < 0) { | |
272 | BT_ERR("Can't get state to change to normal mode err"); | |
273 | return ret; | |
274 | } | |
275 | ||
276 | if ((fw_state & ATH3K_MODE_MASK) == ATH3K_NORMAL_MODE) { | |
277 | BT_DBG("firmware was already in normal mode"); | |
278 | return 0; | |
279 | } | |
280 | ||
281 | pipe = usb_sndctrlpipe(udev, 0); | |
282 | return usb_control_msg(udev, pipe, ATH3K_SET_NORMAL_MODE, | |
283 | USB_TYPE_VENDOR, 0, 0, | |
284 | NULL, 0, USB_CTRL_SET_TIMEOUT); | |
285 | } | |
286 | ||
287 | static int ath3k_load_patch(struct usb_device *udev) | |
288 | { | |
289 | unsigned char fw_state; | |
290 | char filename[ATH3K_NAME_LEN] = {0}; | |
291 | const struct firmware *firmware; | |
292 | struct ath3k_version fw_version, pt_version; | |
293 | int ret; | |
294 | ||
295 | ret = ath3k_get_state(udev, &fw_state); | |
296 | if (ret < 0) { | |
297 | BT_ERR("Can't get state to change to load ram patch err"); | |
298 | return ret; | |
299 | } | |
300 | ||
301 | if (fw_state & ATH3K_PATCH_UPDATE) { | |
302 | BT_DBG("Patch was already downloaded"); | |
303 | return 0; | |
304 | } | |
305 | ||
306 | ret = ath3k_get_version(udev, &fw_version); | |
307 | if (ret < 0) { | |
308 | BT_ERR("Can't get version to change to load ram patch err"); | |
309 | return ret; | |
310 | } | |
311 | ||
312 | snprintf(filename, ATH3K_NAME_LEN, "ar3k/AthrBT_0x%08x.dfu", | |
313 | fw_version.rom_version); | |
314 | ||
315 | ret = request_firmware(&firmware, filename, &udev->dev); | |
316 | if (ret < 0) { | |
317 | BT_ERR("Patch file not found %s", filename); | |
318 | return ret; | |
319 | } | |
320 | ||
321 | pt_version.rom_version = *(int *)(firmware->data + firmware->size - 8); | |
322 | pt_version.build_version = *(int *) | |
323 | (firmware->data + firmware->size - 4); | |
324 | ||
325 | if ((pt_version.rom_version != fw_version.rom_version) || | |
326 | (pt_version.build_version <= fw_version.build_version)) { | |
327 | BT_ERR("Patch file version did not match with firmware"); | |
328 | release_firmware(firmware); | |
329 | return -EINVAL; | |
330 | } | |
331 | ||
332 | ret = ath3k_load_fwfile(udev, firmware); | |
333 | release_firmware(firmware); | |
334 | ||
335 | return ret; | |
336 | } | |
337 | ||
338 | static int ath3k_load_syscfg(struct usb_device *udev) | |
339 | { | |
340 | unsigned char fw_state; | |
341 | char filename[ATH3K_NAME_LEN] = {0}; | |
342 | const struct firmware *firmware; | |
343 | struct ath3k_version fw_version; | |
344 | int clk_value, ret; | |
345 | ||
346 | ret = ath3k_get_state(udev, &fw_state); | |
347 | if (ret < 0) { | |
348 | BT_ERR("Can't get state to change to load configration err"); | |
349 | return -EBUSY; | |
350 | } | |
351 | ||
352 | ret = ath3k_get_version(udev, &fw_version); | |
353 | if (ret < 0) { | |
354 | BT_ERR("Can't get version to change to load ram patch err"); | |
355 | return ret; | |
356 | } | |
357 | ||
358 | switch (fw_version.ref_clock) { | |
359 | ||
360 | case ATH3K_XTAL_FREQ_26M: | |
361 | clk_value = 26; | |
362 | break; | |
363 | case ATH3K_XTAL_FREQ_40M: | |
364 | clk_value = 40; | |
365 | break; | |
366 | case ATH3K_XTAL_FREQ_19P2: | |
367 | clk_value = 19; | |
368 | break; | |
369 | default: | |
370 | clk_value = 0; | |
371 | break; | |
372 | } | |
373 | ||
374 | snprintf(filename, ATH3K_NAME_LEN, "ar3k/ramps_0x%08x_%d%s", | |
375 | fw_version.rom_version, clk_value, ".dfu"); | |
376 | ||
377 | ret = request_firmware(&firmware, filename, &udev->dev); | |
378 | if (ret < 0) { | |
379 | BT_ERR("Configuration file not found %s", filename); | |
380 | return ret; | |
381 | } | |
382 | ||
383 | ret = ath3k_load_fwfile(udev, firmware); | |
384 | release_firmware(firmware); | |
385 | ||
386 | return ret; | |
387 | } | |
388 | ||
9670d80a VK |
389 | static int ath3k_probe(struct usb_interface *intf, |
390 | const struct usb_device_id *id) | |
391 | { | |
392 | const struct firmware *firmware; | |
393 | struct usb_device *udev = interface_to_usbdev(intf); | |
84f0e17f | 394 | int ret; |
9670d80a VK |
395 | |
396 | BT_DBG("intf %p id %p", intf, id); | |
397 | ||
398 | if (intf->cur_altsetting->desc.bInterfaceNumber != 0) | |
399 | return -ENODEV; | |
400 | ||
d9f51b51 BS |
401 | /* match device ID in ath3k blacklist table */ |
402 | if (!id->driver_info) { | |
403 | const struct usb_device_id *match; | |
404 | match = usb_match_id(intf, ath3k_blist_tbl); | |
405 | if (match) | |
406 | id = match; | |
407 | } | |
408 | ||
409 | /* load patch and sysconfig files for AR3012 */ | |
410 | if (id->driver_info & BTUSB_ATH3012) { | |
2d25f8b4 SL |
411 | |
412 | /* New firmware with patch and sysconfig files already loaded */ | |
413 | if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x0001) | |
414 | return -ENODEV; | |
415 | ||
d9f51b51 BS |
416 | ret = ath3k_load_patch(udev); |
417 | if (ret < 0) { | |
418 | BT_ERR("Loading patch file failed"); | |
419 | return ret; | |
420 | } | |
421 | ret = ath3k_load_syscfg(udev); | |
422 | if (ret < 0) { | |
423 | BT_ERR("Loading sysconfig file failed"); | |
424 | return ret; | |
425 | } | |
426 | ret = ath3k_set_normal_mode(udev); | |
427 | if (ret < 0) { | |
428 | BT_ERR("Set normal mode failed"); | |
429 | return ret; | |
430 | } | |
431 | ath3k_switch_pid(udev); | |
432 | return 0; | |
433 | } | |
434 | ||
c3eae82a PF |
435 | ret = request_firmware(&firmware, ATH3K_FIRMWARE, &udev->dev); |
436 | if (ret < 0) { | |
437 | if (ret == -ENOENT) | |
438 | BT_ERR("Firmware file \"%s\" not found", | |
439 | ATH3K_FIRMWARE); | |
440 | else | |
441 | BT_ERR("Firmware file \"%s\" request failed (err=%d)", | |
442 | ATH3K_FIRMWARE, ret); | |
443 | return ret; | |
9670d80a VK |
444 | } |
445 | ||
84f0e17f | 446 | ret = ath3k_load_firmware(udev, firmware); |
86e09287 | 447 | release_firmware(firmware); |
9670d80a | 448 | |
84f0e17f | 449 | return ret; |
9670d80a VK |
450 | } |
451 | ||
452 | static void ath3k_disconnect(struct usb_interface *intf) | |
453 | { | |
9670d80a | 454 | BT_DBG("ath3k_disconnect intf %p", intf); |
9670d80a VK |
455 | } |
456 | ||
457 | static struct usb_driver ath3k_driver = { | |
458 | .name = "ath3k", | |
459 | .probe = ath3k_probe, | |
460 | .disconnect = ath3k_disconnect, | |
461 | .id_table = ath3k_table, | |
e1f12eb6 | 462 | .disable_hub_initiated_lpm = 1, |
9670d80a VK |
463 | }; |
464 | ||
93f1508c | 465 | module_usb_driver(ath3k_driver); |
9670d80a VK |
466 | |
467 | MODULE_AUTHOR("Atheros Communications"); | |
468 | MODULE_DESCRIPTION("Atheros AR30xx firmware driver"); | |
469 | MODULE_VERSION(VERSION); | |
470 | MODULE_LICENSE("GPL"); | |
c3eae82a | 471 | MODULE_FIRMWARE(ATH3K_FIRMWARE); |