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