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1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * Copyright (c) 2008-2009 Atheros Communications Inc.
4 */
5
6
7#include <linux/module.h>
8#include <linux/kernel.h>
9#include <linux/init.h>
10#include <linux/slab.h>
11#include <linux/types.h>
12#include <linux/errno.h>
13#include <linux/firmware.h>
14#include <linux/usb.h>
15#include <asm/unaligned.h>
16#include <net/bluetooth/bluetooth.h>
17
18#define VERSION "1.0"
19#define ATH3K_FIRMWARE "ath3k-1.fw"
20
21#define ATH3K_DNLOAD 0x01
22#define ATH3K_GETSTATE 0x05
23#define ATH3K_SET_NORMAL_MODE 0x07
24#define ATH3K_GETVERSION 0x09
25#define USB_REG_SWITCH_VID_PID 0x0a
26
27#define ATH3K_MODE_MASK 0x3F
28#define ATH3K_NORMAL_MODE 0x0E
29
30#define ATH3K_PATCH_UPDATE 0x80
31#define ATH3K_SYSCFG_UPDATE 0x40
32
33#define ATH3K_XTAL_FREQ_26M 0x00
34#define ATH3K_XTAL_FREQ_40M 0x01
35#define ATH3K_XTAL_FREQ_19P2 0x02
36#define ATH3K_NAME_LEN 0xFF
37
38struct ath3k_version {
39 __le32 rom_version;
40 __le32 build_version;
41 __le32 ram_version;
42 __u8 ref_clock;
43 __u8 reserved[7];
44} __packed;
45
46static const struct usb_device_id ath3k_table[] = {
47 /* Atheros AR3011 */
48 { USB_DEVICE(0x0CF3, 0x3000) },
49
50 /* Atheros AR3011 with sflash firmware*/
51 { USB_DEVICE(0x0489, 0xE027) },
52 { USB_DEVICE(0x0489, 0xE03D) },
53 { USB_DEVICE(0x04F2, 0xAFF1) },
54 { USB_DEVICE(0x0930, 0x0215) },
55 { USB_DEVICE(0x0CF3, 0x3002) },
56 { USB_DEVICE(0x0CF3, 0xE019) },
57 { USB_DEVICE(0x13d3, 0x3304) },
58
59 /* Atheros AR9285 Malbec with sflash firmware */
60 { USB_DEVICE(0x03F0, 0x311D) },
61
62 /* Atheros AR3012 with sflash firmware*/
63 { USB_DEVICE(0x0489, 0xe04d) },
64 { USB_DEVICE(0x0489, 0xe04e) },
65 { USB_DEVICE(0x0489, 0xe057) },
66 { USB_DEVICE(0x0489, 0xe056) },
67 { USB_DEVICE(0x0489, 0xe05f) },
68 { USB_DEVICE(0x0489, 0xe076) },
69 { USB_DEVICE(0x0489, 0xe078) },
70 { USB_DEVICE(0x0489, 0xe095) },
71 { USB_DEVICE(0x04c5, 0x1330) },
72 { USB_DEVICE(0x04CA, 0x3004) },
73 { USB_DEVICE(0x04CA, 0x3005) },
74 { USB_DEVICE(0x04CA, 0x3006) },
75 { USB_DEVICE(0x04CA, 0x3007) },
76 { USB_DEVICE(0x04CA, 0x3008) },
77 { USB_DEVICE(0x04CA, 0x300b) },
78 { USB_DEVICE(0x04CA, 0x300d) },
79 { USB_DEVICE(0x04CA, 0x300f) },
80 { USB_DEVICE(0x04CA, 0x3010) },
81 { USB_DEVICE(0x04CA, 0x3014) },
82 { USB_DEVICE(0x04CA, 0x3018) },
83 { USB_DEVICE(0x0930, 0x0219) },
84 { USB_DEVICE(0x0930, 0x021c) },
85 { USB_DEVICE(0x0930, 0x0220) },
86 { USB_DEVICE(0x0930, 0x0227) },
87 { USB_DEVICE(0x0b05, 0x17d0) },
88 { USB_DEVICE(0x0CF3, 0x0036) },
89 { USB_DEVICE(0x0CF3, 0x3004) },
90 { USB_DEVICE(0x0CF3, 0x3008) },
91 { USB_DEVICE(0x0CF3, 0x311D) },
92 { USB_DEVICE(0x0CF3, 0x311E) },
93 { USB_DEVICE(0x0CF3, 0x311F) },
94 { USB_DEVICE(0x0cf3, 0x3121) },
95 { USB_DEVICE(0x0CF3, 0x817a) },
96 { USB_DEVICE(0x0CF3, 0x817b) },
97 { USB_DEVICE(0x0cf3, 0xe003) },
98 { USB_DEVICE(0x0CF3, 0xE004) },
99 { USB_DEVICE(0x0CF3, 0xE005) },
100 { USB_DEVICE(0x0CF3, 0xE006) },
101 { USB_DEVICE(0x13d3, 0x3362) },
102 { USB_DEVICE(0x13d3, 0x3375) },
103 { USB_DEVICE(0x13d3, 0x3393) },
104 { USB_DEVICE(0x13d3, 0x3395) },
105 { USB_DEVICE(0x13d3, 0x3402) },
106 { USB_DEVICE(0x13d3, 0x3408) },
107 { USB_DEVICE(0x13d3, 0x3423) },
108 { USB_DEVICE(0x13d3, 0x3432) },
109 { USB_DEVICE(0x13d3, 0x3472) },
110 { USB_DEVICE(0x13d3, 0x3474) },
111 { USB_DEVICE(0x13d3, 0x3487) },
112 { USB_DEVICE(0x13d3, 0x3490) },
113
114 /* Atheros AR5BBU12 with sflash firmware */
115 { USB_DEVICE(0x0489, 0xE02C) },
116
117 /* Atheros AR5BBU22 with sflash firmware */
118 { USB_DEVICE(0x0489, 0xE036) },
119 { USB_DEVICE(0x0489, 0xE03C) },
120
121 { } /* Terminating entry */
122};
123
124MODULE_DEVICE_TABLE(usb, ath3k_table);
125
126#define BTUSB_ATH3012 0x80
127/* This table is to load patch and sysconfig files
128 * for AR3012
129 */
130static const struct usb_device_id ath3k_blist_tbl[] = {
131
132 /* Atheros AR3012 with sflash firmware*/
133 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
134 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
135 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
136 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
137 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
138 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
139 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
140 { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 },
141 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
142 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
143 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
144 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
145 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
146 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
147 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
148 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
149 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
150 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
151 { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 },
152 { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 },
153 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
154 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
155 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
156 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
157 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
158 { USB_DEVICE(0x0CF3, 0x0036), .driver_info = BTUSB_ATH3012 },
159 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
160 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
161 { USB_DEVICE(0x0cf3, 0x311D), .driver_info = BTUSB_ATH3012 },
162 { USB_DEVICE(0x0cf3, 0x311E), .driver_info = BTUSB_ATH3012 },
163 { USB_DEVICE(0x0cf3, 0x311F), .driver_info = BTUSB_ATH3012 },
164 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
165 { USB_DEVICE(0x0CF3, 0x817a), .driver_info = BTUSB_ATH3012 },
166 { USB_DEVICE(0x0CF3, 0x817b), .driver_info = BTUSB_ATH3012 },
167 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
168 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
169 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
170 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
171 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
172 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
173 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
174 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 },
175 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
176 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
177 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
178 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
179 { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 },
180 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
181 { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 },
182 { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 },
183
184 /* Atheros AR5BBU22 with sflash firmware */
185 { USB_DEVICE(0x0489, 0xE036), .driver_info = BTUSB_ATH3012 },
186 { USB_DEVICE(0x0489, 0xE03C), .driver_info = BTUSB_ATH3012 },
187
188 { } /* Terminating entry */
189};
190
191static inline void ath3k_log_failed_loading(int err, int len, int size,
192 int count)
193{
194 BT_ERR("Firmware loading err = %d, len = %d, size = %d, count = %d",
195 err, len, size, count);
196}
197
198#define USB_REQ_DFU_DNLOAD 1
199#define BULK_SIZE 4096
200#define FW_HDR_SIZE 20
201#define TIMEGAP_USEC_MIN 50
202#define TIMEGAP_USEC_MAX 100
203
204static int ath3k_load_firmware(struct usb_device *udev,
205 const struct firmware *firmware)
206{
207 u8 *send_buf;
208 int len = 0;
209 int err, pipe, size, sent = 0;
210 int count = firmware->size;
211
212 BT_DBG("udev %p", udev);
213
214 send_buf = kmalloc(BULK_SIZE, GFP_KERNEL);
215 if (!send_buf) {
216 BT_ERR("Can't allocate memory chunk for firmware");
217 return -ENOMEM;
218 }
219
220 err = usb_control_msg_send(udev, 0, USB_REQ_DFU_DNLOAD, USB_TYPE_VENDOR,
221 0, 0, firmware->data, FW_HDR_SIZE,
222 USB_CTRL_SET_TIMEOUT, GFP_KERNEL);
223 if (err) {
224 BT_ERR("Can't change to loading configuration err");
225 goto error;
226 }
227 sent += FW_HDR_SIZE;
228 count -= FW_HDR_SIZE;
229
230 pipe = usb_sndbulkpipe(udev, 0x02);
231
232 while (count) {
233 /* workaround the compatibility issue with xHCI controller*/
234 usleep_range(TIMEGAP_USEC_MIN, TIMEGAP_USEC_MAX);
235
236 size = min_t(uint, count, BULK_SIZE);
237 memcpy(send_buf, firmware->data + sent, size);
238
239 err = usb_bulk_msg(udev, pipe, send_buf, size,
240 &len, 3000);
241
242 if (err || (len != size)) {
243 ath3k_log_failed_loading(err, len, size, count);
244 goto error;
245 }
246
247 sent += size;
248 count -= size;
249 }
250
251error:
252 kfree(send_buf);
253 return err;
254}
255
256static int ath3k_get_state(struct usb_device *udev, unsigned char *state)
257{
258 return usb_control_msg_recv(udev, 0, ATH3K_GETSTATE,
259 USB_TYPE_VENDOR | USB_DIR_IN, 0, 0,
260 state, 1, USB_CTRL_SET_TIMEOUT,
261 GFP_KERNEL);
262}
263
264static int ath3k_get_version(struct usb_device *udev,
265 struct ath3k_version *version)
266{
267 return usb_control_msg_recv(udev, 0, ATH3K_GETVERSION,
268 USB_TYPE_VENDOR | USB_DIR_IN, 0, 0,
269 version, sizeof(*version), USB_CTRL_SET_TIMEOUT,
270 GFP_KERNEL);
271}
272
273static int ath3k_load_fwfile(struct usb_device *udev,
274 const struct firmware *firmware)
275{
276 u8 *send_buf;
277 int len = 0;
278 int err, pipe, size, count, sent = 0;
279 int ret;
280
281 count = firmware->size;
282
283 send_buf = kmalloc(BULK_SIZE, GFP_KERNEL);
284 if (!send_buf) {
285 BT_ERR("Can't allocate memory chunk for firmware");
286 return -ENOMEM;
287 }
288
289 size = min_t(uint, count, FW_HDR_SIZE);
290
291 ret = usb_control_msg_send(udev, 0, ATH3K_DNLOAD, USB_TYPE_VENDOR, 0, 0,
292 firmware->data, size, USB_CTRL_SET_TIMEOUT,
293 GFP_KERNEL);
294 if (ret) {
295 BT_ERR("Can't change to loading configuration err");
296 kfree(send_buf);
297 return ret;
298 }
299
300 sent += size;
301 count -= size;
302
303 pipe = usb_sndbulkpipe(udev, 0x02);
304
305 while (count) {
306 /* workaround the compatibility issue with xHCI controller*/
307 usleep_range(TIMEGAP_USEC_MIN, TIMEGAP_USEC_MAX);
308
309 size = min_t(uint, count, BULK_SIZE);
310 memcpy(send_buf, firmware->data + sent, size);
311
312 err = usb_bulk_msg(udev, pipe, send_buf, size,
313 &len, 3000);
314 if (err || (len != size)) {
315 ath3k_log_failed_loading(err, len, size, count);
316 kfree(send_buf);
317 return err;
318 }
319 sent += size;
320 count -= size;
321 }
322
323 kfree(send_buf);
324 return 0;
325}
326
327static void ath3k_switch_pid(struct usb_device *udev)
328{
329 usb_control_msg_send(udev, 0, USB_REG_SWITCH_VID_PID, USB_TYPE_VENDOR,
330 0, 0, NULL, 0, USB_CTRL_SET_TIMEOUT, GFP_KERNEL);
331}
332
333static int ath3k_set_normal_mode(struct usb_device *udev)
334{
335 unsigned char fw_state;
336 int ret;
337
338 ret = ath3k_get_state(udev, &fw_state);
339 if (ret) {
340 BT_ERR("Can't get state to change to normal mode err");
341 return ret;
342 }
343
344 if ((fw_state & ATH3K_MODE_MASK) == ATH3K_NORMAL_MODE) {
345 BT_DBG("firmware was already in normal mode");
346 return 0;
347 }
348
349 return usb_control_msg_send(udev, 0, ATH3K_SET_NORMAL_MODE,
350 USB_TYPE_VENDOR, 0, 0, NULL, 0,
351 USB_CTRL_SET_TIMEOUT, GFP_KERNEL);
352}
353
354static int ath3k_load_patch(struct usb_device *udev)
355{
356 unsigned char fw_state;
357 char filename[ATH3K_NAME_LEN];
358 const struct firmware *firmware;
359 struct ath3k_version fw_version;
360 __u32 pt_rom_version, pt_build_version;
361 int ret;
362
363 ret = ath3k_get_state(udev, &fw_state);
364 if (ret) {
365 BT_ERR("Can't get state to change to load ram patch err");
366 return ret;
367 }
368
369 if (fw_state & ATH3K_PATCH_UPDATE) {
370 BT_DBG("Patch was already downloaded");
371 return 0;
372 }
373
374 ret = ath3k_get_version(udev, &fw_version);
375 if (ret) {
376 BT_ERR("Can't get version to change to load ram patch err");
377 return ret;
378 }
379
380 snprintf(filename, ATH3K_NAME_LEN, "ar3k/AthrBT_0x%08x.dfu",
381 le32_to_cpu(fw_version.rom_version));
382
383 ret = request_firmware(&firmware, filename, &udev->dev);
384 if (ret < 0) {
385 BT_ERR("Patch file not found %s", filename);
386 return ret;
387 }
388
389 pt_rom_version = get_unaligned_le32(firmware->data +
390 firmware->size - 8);
391 pt_build_version = get_unaligned_le32(firmware->data +
392 firmware->size - 4);
393
394 if (pt_rom_version != le32_to_cpu(fw_version.rom_version) ||
395 pt_build_version <= le32_to_cpu(fw_version.build_version)) {
396 BT_ERR("Patch file version did not match with firmware");
397 release_firmware(firmware);
398 return -EINVAL;
399 }
400
401 ret = ath3k_load_fwfile(udev, firmware);
402 release_firmware(firmware);
403
404 return ret;
405}
406
407static int ath3k_load_syscfg(struct usb_device *udev)
408{
409 unsigned char fw_state;
410 char filename[ATH3K_NAME_LEN];
411 const struct firmware *firmware;
412 struct ath3k_version fw_version;
413 int clk_value, ret;
414
415 ret = ath3k_get_state(udev, &fw_state);
416 if (ret) {
417 BT_ERR("Can't get state to change to load configuration err");
418 return -EBUSY;
419 }
420
421 ret = ath3k_get_version(udev, &fw_version);
422 if (ret) {
423 BT_ERR("Can't get version to change to load ram patch err");
424 return ret;
425 }
426
427 switch (fw_version.ref_clock) {
428
429 case ATH3K_XTAL_FREQ_26M:
430 clk_value = 26;
431 break;
432 case ATH3K_XTAL_FREQ_40M:
433 clk_value = 40;
434 break;
435 case ATH3K_XTAL_FREQ_19P2:
436 clk_value = 19;
437 break;
438 default:
439 clk_value = 0;
440 break;
441 }
442
443 snprintf(filename, ATH3K_NAME_LEN, "ar3k/ramps_0x%08x_%d%s",
444 le32_to_cpu(fw_version.rom_version), clk_value, ".dfu");
445
446 ret = request_firmware(&firmware, filename, &udev->dev);
447 if (ret < 0) {
448 BT_ERR("Configuration file not found %s", filename);
449 return ret;
450 }
451
452 ret = ath3k_load_fwfile(udev, firmware);
453 release_firmware(firmware);
454
455 return ret;
456}
457
458static int ath3k_probe(struct usb_interface *intf,
459 const struct usb_device_id *id)
460{
461 const struct firmware *firmware;
462 struct usb_device *udev = interface_to_usbdev(intf);
463 int ret;
464
465 BT_DBG("intf %p id %p", intf, id);
466
467 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
468 return -ENODEV;
469
470 /* match device ID in ath3k blacklist table */
471 if (!id->driver_info) {
472 const struct usb_device_id *match;
473
474 match = usb_match_id(intf, ath3k_blist_tbl);
475 if (match)
476 id = match;
477 }
478
479 /* load patch and sysconfig files for AR3012 */
480 if (id->driver_info & BTUSB_ATH3012) {
481 /* New firmware with patch and sysconfig files already loaded */
482 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x0001)
483 return -ENODEV;
484
485 ret = ath3k_load_patch(udev);
486 if (ret < 0) {
487 BT_ERR("Loading patch file failed");
488 return ret;
489 }
490 ret = ath3k_load_syscfg(udev);
491 if (ret < 0) {
492 BT_ERR("Loading sysconfig file failed");
493 return ret;
494 }
495 ret = ath3k_set_normal_mode(udev);
496 if (ret) {
497 BT_ERR("Set normal mode failed");
498 return ret;
499 }
500 ath3k_switch_pid(udev);
501 return 0;
502 }
503
504 ret = request_firmware(&firmware, ATH3K_FIRMWARE, &udev->dev);
505 if (ret < 0) {
506 if (ret == -ENOENT)
507 BT_ERR("Firmware file \"%s\" not found",
508 ATH3K_FIRMWARE);
509 else
510 BT_ERR("Firmware file \"%s\" request failed (err=%d)",
511 ATH3K_FIRMWARE, ret);
512 return ret;
513 }
514
515 ret = ath3k_load_firmware(udev, firmware);
516 release_firmware(firmware);
517
518 return ret;
519}
520
521static void ath3k_disconnect(struct usb_interface *intf)
522{
523 BT_DBG("%s intf %p", __func__, intf);
524}
525
526static struct usb_driver ath3k_driver = {
527 .name = "ath3k",
528 .probe = ath3k_probe,
529 .disconnect = ath3k_disconnect,
530 .id_table = ath3k_table,
531 .disable_hub_initiated_lpm = 1,
532};
533
534module_usb_driver(ath3k_driver);
535
536MODULE_AUTHOR("Atheros Communications");
537MODULE_DESCRIPTION("Atheros AR30xx firmware driver");
538MODULE_VERSION(VERSION);
539MODULE_LICENSE("GPL");
540MODULE_FIRMWARE(ATH3K_FIRMWARE);
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"
33
34#define ATH3K_DNLOAD 0x01
35#define ATH3K_GETSTATE 0x05
36#define ATH3K_SET_NORMAL_MODE 0x07
37#define ATH3K_GETVERSION 0x09
38#define USB_REG_SWITCH_VID_PID 0x0a
39
40#define ATH3K_MODE_MASK 0x3F
41#define ATH3K_NORMAL_MODE 0x0E
42
43#define ATH3K_PATCH_UPDATE 0x80
44#define ATH3K_SYSCFG_UPDATE 0x40
45
46#define ATH3K_XTAL_FREQ_26M 0x00
47#define ATH3K_XTAL_FREQ_40M 0x01
48#define ATH3K_XTAL_FREQ_19P2 0x02
49#define ATH3K_NAME_LEN 0xFF
50
51struct ath3k_version {
52 unsigned int rom_version;
53 unsigned int build_version;
54 unsigned int ram_version;
55 unsigned char ref_clock;
56 unsigned char reserved[0x07];
57};
58
59static struct usb_device_id ath3k_table[] = {
60 /* Atheros AR3011 */
61 { USB_DEVICE(0x0CF3, 0x3000) },
62
63 /* Atheros AR3011 with sflash firmware*/
64 { USB_DEVICE(0x0CF3, 0x3002) },
65 { USB_DEVICE(0x13d3, 0x3304) },
66 { USB_DEVICE(0x0930, 0x0215) },
67
68 /* Atheros AR9285 Malbec with sflash firmware */
69 { USB_DEVICE(0x03F0, 0x311D) },
70
71 /* Atheros AR3012 with sflash firmware*/
72 { USB_DEVICE(0x0CF3, 0x3004) },
73
74 /* Atheros AR5BBU12 with sflash firmware */
75 { USB_DEVICE(0x0489, 0xE02C) },
76
77 { } /* Terminating entry */
78};
79
80MODULE_DEVICE_TABLE(usb, ath3k_table);
81
82#define BTUSB_ATH3012 0x80
83/* This table is to load patch and sysconfig files
84 * for AR3012 */
85static struct usb_device_id ath3k_blist_tbl[] = {
86
87 /* Atheros AR3012 with sflash firmware*/
88 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
89
90 { } /* Terminating entry */
91};
92
93#define USB_REQ_DFU_DNLOAD 1
94#define BULK_SIZE 4096
95#define FW_HDR_SIZE 20
96
97static int ath3k_load_firmware(struct usb_device *udev,
98 const struct firmware *firmware)
99{
100 u8 *send_buf;
101 int err, pipe, len, size, sent = 0;
102 int count = firmware->size;
103
104 BT_DBG("udev %p", udev);
105
106 pipe = usb_sndctrlpipe(udev, 0);
107
108 send_buf = kmalloc(BULK_SIZE, GFP_ATOMIC);
109 if (!send_buf) {
110 BT_ERR("Can't allocate memory chunk for firmware");
111 return -ENOMEM;
112 }
113
114 memcpy(send_buf, firmware->data, 20);
115 if ((err = usb_control_msg(udev, pipe,
116 USB_REQ_DFU_DNLOAD,
117 USB_TYPE_VENDOR, 0, 0,
118 send_buf, 20, USB_CTRL_SET_TIMEOUT)) < 0) {
119 BT_ERR("Can't change to loading configuration err");
120 goto error;
121 }
122 sent += 20;
123 count -= 20;
124
125 while (count) {
126 size = min_t(uint, count, BULK_SIZE);
127 pipe = usb_sndbulkpipe(udev, 0x02);
128 memcpy(send_buf, firmware->data + sent, size);
129
130 err = usb_bulk_msg(udev, pipe, send_buf, size,
131 &len, 3000);
132
133 if (err || (len != size)) {
134 BT_ERR("Error in firmware loading err = %d,"
135 "len = %d, size = %d", err, len, size);
136 goto error;
137 }
138
139 sent += size;
140 count -= size;
141 }
142
143error:
144 kfree(send_buf);
145 return err;
146}
147
148static int ath3k_get_state(struct usb_device *udev, unsigned char *state)
149{
150 int pipe = 0;
151
152 pipe = usb_rcvctrlpipe(udev, 0);
153 return usb_control_msg(udev, pipe, ATH3K_GETSTATE,
154 USB_TYPE_VENDOR | USB_DIR_IN, 0, 0,
155 state, 0x01, USB_CTRL_SET_TIMEOUT);
156}
157
158static int ath3k_get_version(struct usb_device *udev,
159 struct ath3k_version *version)
160{
161 int pipe = 0;
162
163 pipe = usb_rcvctrlpipe(udev, 0);
164 return usb_control_msg(udev, pipe, ATH3K_GETVERSION,
165 USB_TYPE_VENDOR | USB_DIR_IN, 0, 0, version,
166 sizeof(struct ath3k_version),
167 USB_CTRL_SET_TIMEOUT);
168}
169
170static int ath3k_load_fwfile(struct usb_device *udev,
171 const struct firmware *firmware)
172{
173 u8 *send_buf;
174 int err, pipe, len, size, count, sent = 0;
175 int ret;
176
177 count = firmware->size;
178
179 send_buf = kmalloc(BULK_SIZE, GFP_ATOMIC);
180 if (!send_buf) {
181 BT_ERR("Can't allocate memory chunk for firmware");
182 return -ENOMEM;
183 }
184
185 size = min_t(uint, count, FW_HDR_SIZE);
186 memcpy(send_buf, firmware->data, size);
187
188 pipe = usb_sndctrlpipe(udev, 0);
189 ret = usb_control_msg(udev, pipe, ATH3K_DNLOAD,
190 USB_TYPE_VENDOR, 0, 0, send_buf,
191 size, USB_CTRL_SET_TIMEOUT);
192 if (ret < 0) {
193 BT_ERR("Can't change to loading configuration err");
194 kfree(send_buf);
195 return ret;
196 }
197
198 sent += size;
199 count -= size;
200
201 while (count) {
202 size = min_t(uint, count, BULK_SIZE);
203 pipe = usb_sndbulkpipe(udev, 0x02);
204
205 memcpy(send_buf, firmware->data + sent, size);
206
207 err = usb_bulk_msg(udev, pipe, send_buf, size,
208 &len, 3000);
209 if (err || (len != size)) {
210 BT_ERR("Error in firmware loading err = %d,"
211 "len = %d, size = %d", err, len, size);
212 kfree(send_buf);
213 return err;
214 }
215 sent += size;
216 count -= size;
217 }
218
219 kfree(send_buf);
220 return 0;
221}
222
223static int ath3k_switch_pid(struct usb_device *udev)
224{
225 int pipe = 0;
226
227 pipe = usb_sndctrlpipe(udev, 0);
228 return usb_control_msg(udev, pipe, USB_REG_SWITCH_VID_PID,
229 USB_TYPE_VENDOR, 0, 0,
230 NULL, 0, USB_CTRL_SET_TIMEOUT);
231}
232
233static int ath3k_set_normal_mode(struct usb_device *udev)
234{
235 unsigned char fw_state;
236 int pipe = 0, ret;
237
238 ret = ath3k_get_state(udev, &fw_state);
239 if (ret < 0) {
240 BT_ERR("Can't get state to change to normal mode err");
241 return ret;
242 }
243
244 if ((fw_state & ATH3K_MODE_MASK) == ATH3K_NORMAL_MODE) {
245 BT_DBG("firmware was already in normal mode");
246 return 0;
247 }
248
249 pipe = usb_sndctrlpipe(udev, 0);
250 return usb_control_msg(udev, pipe, ATH3K_SET_NORMAL_MODE,
251 USB_TYPE_VENDOR, 0, 0,
252 NULL, 0, USB_CTRL_SET_TIMEOUT);
253}
254
255static int ath3k_load_patch(struct usb_device *udev)
256{
257 unsigned char fw_state;
258 char filename[ATH3K_NAME_LEN] = {0};
259 const struct firmware *firmware;
260 struct ath3k_version fw_version, pt_version;
261 int ret;
262
263 ret = ath3k_get_state(udev, &fw_state);
264 if (ret < 0) {
265 BT_ERR("Can't get state to change to load ram patch err");
266 return ret;
267 }
268
269 if (fw_state & ATH3K_PATCH_UPDATE) {
270 BT_DBG("Patch was already downloaded");
271 return 0;
272 }
273
274 ret = ath3k_get_version(udev, &fw_version);
275 if (ret < 0) {
276 BT_ERR("Can't get version to change to load ram patch err");
277 return ret;
278 }
279
280 snprintf(filename, ATH3K_NAME_LEN, "ar3k/AthrBT_0x%08x.dfu",
281 fw_version.rom_version);
282
283 ret = request_firmware(&firmware, filename, &udev->dev);
284 if (ret < 0) {
285 BT_ERR("Patch file not found %s", filename);
286 return ret;
287 }
288
289 pt_version.rom_version = *(int *)(firmware->data + firmware->size - 8);
290 pt_version.build_version = *(int *)
291 (firmware->data + firmware->size - 4);
292
293 if ((pt_version.rom_version != fw_version.rom_version) ||
294 (pt_version.build_version <= fw_version.build_version)) {
295 BT_ERR("Patch file version did not match with firmware");
296 release_firmware(firmware);
297 return -EINVAL;
298 }
299
300 ret = ath3k_load_fwfile(udev, firmware);
301 release_firmware(firmware);
302
303 return ret;
304}
305
306static int ath3k_load_syscfg(struct usb_device *udev)
307{
308 unsigned char fw_state;
309 char filename[ATH3K_NAME_LEN] = {0};
310 const struct firmware *firmware;
311 struct ath3k_version fw_version;
312 int clk_value, ret;
313
314 ret = ath3k_get_state(udev, &fw_state);
315 if (ret < 0) {
316 BT_ERR("Can't get state to change to load configration err");
317 return -EBUSY;
318 }
319
320 ret = ath3k_get_version(udev, &fw_version);
321 if (ret < 0) {
322 BT_ERR("Can't get version to change to load ram patch err");
323 return ret;
324 }
325
326 switch (fw_version.ref_clock) {
327
328 case ATH3K_XTAL_FREQ_26M:
329 clk_value = 26;
330 break;
331 case ATH3K_XTAL_FREQ_40M:
332 clk_value = 40;
333 break;
334 case ATH3K_XTAL_FREQ_19P2:
335 clk_value = 19;
336 break;
337 default:
338 clk_value = 0;
339 break;
340 }
341
342 snprintf(filename, ATH3K_NAME_LEN, "ar3k/ramps_0x%08x_%d%s",
343 fw_version.rom_version, clk_value, ".dfu");
344
345 ret = request_firmware(&firmware, filename, &udev->dev);
346 if (ret < 0) {
347 BT_ERR("Configuration file not found %s", filename);
348 return ret;
349 }
350
351 ret = ath3k_load_fwfile(udev, firmware);
352 release_firmware(firmware);
353
354 return ret;
355}
356
357static int ath3k_probe(struct usb_interface *intf,
358 const struct usb_device_id *id)
359{
360 const struct firmware *firmware;
361 struct usb_device *udev = interface_to_usbdev(intf);
362 int ret;
363
364 BT_DBG("intf %p id %p", intf, id);
365
366 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
367 return -ENODEV;
368
369 /* match device ID in ath3k blacklist table */
370 if (!id->driver_info) {
371 const struct usb_device_id *match;
372 match = usb_match_id(intf, ath3k_blist_tbl);
373 if (match)
374 id = match;
375 }
376
377 /* load patch and sysconfig files for AR3012 */
378 if (id->driver_info & BTUSB_ATH3012) {
379
380 /* New firmware with patch and sysconfig files already loaded */
381 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x0001)
382 return -ENODEV;
383
384 ret = ath3k_load_patch(udev);
385 if (ret < 0) {
386 BT_ERR("Loading patch file failed");
387 return ret;
388 }
389 ret = ath3k_load_syscfg(udev);
390 if (ret < 0) {
391 BT_ERR("Loading sysconfig file failed");
392 return ret;
393 }
394 ret = ath3k_set_normal_mode(udev);
395 if (ret < 0) {
396 BT_ERR("Set normal mode failed");
397 return ret;
398 }
399 ath3k_switch_pid(udev);
400 return 0;
401 }
402
403 if (request_firmware(&firmware, "ath3k-1.fw", &udev->dev) < 0) {
404 BT_ERR("Error loading firmware");
405 return -EIO;
406 }
407
408 ret = ath3k_load_firmware(udev, firmware);
409 release_firmware(firmware);
410
411 return ret;
412}
413
414static void ath3k_disconnect(struct usb_interface *intf)
415{
416 BT_DBG("ath3k_disconnect intf %p", intf);
417}
418
419static struct usb_driver ath3k_driver = {
420 .name = "ath3k",
421 .probe = ath3k_probe,
422 .disconnect = ath3k_disconnect,
423 .id_table = ath3k_table,
424};
425
426static int __init ath3k_init(void)
427{
428 BT_INFO("Atheros AR30xx firmware driver ver %s", VERSION);
429 return usb_register(&ath3k_driver);
430}
431
432static void __exit ath3k_exit(void)
433{
434 usb_deregister(&ath3k_driver);
435}
436
437module_init(ath3k_init);
438module_exit(ath3k_exit);
439
440MODULE_AUTHOR("Atheros Communications");
441MODULE_DESCRIPTION("Atheros AR30xx firmware driver");
442MODULE_VERSION(VERSION);
443MODULE_LICENSE("GPL");
444MODULE_FIRMWARE("ath3k-1.fw");