2 * Copyright (c) 2008-2009 Atheros Communications Inc.
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.
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.
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
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>
33 #define ATH3K_FIRMWARE "ath3k-1.fw"
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
41 #define ATH3K_MODE_MASK 0x3F
42 #define ATH3K_NORMAL_MODE 0x0E
44 #define ATH3K_PATCH_UPDATE 0x80
45 #define ATH3K_SYSCFG_UPDATE 0x40
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
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];
60 static struct usb_device_id ath3k_table[] = {
62 { USB_DEVICE(0x0CF3, 0x3000) },
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 { USB_DEVICE(0x0489, 0xE027) },
72 /* Atheros AR9285 Malbec with sflash firmware */
73 { USB_DEVICE(0x03F0, 0x311D) },
75 /* Atheros AR3012 with sflash firmware*/
76 { USB_DEVICE(0x0CF3, 0x3004) },
77 { USB_DEVICE(0x0CF3, 0x311D) },
78 { USB_DEVICE(0x13d3, 0x3375) },
79 { USB_DEVICE(0x04CA, 0x3005) },
80 { USB_DEVICE(0x04CA, 0x3006) },
81 { USB_DEVICE(0x13d3, 0x3362) },
82 { USB_DEVICE(0x0CF3, 0xE004) },
83 { USB_DEVICE(0x0930, 0x0219) },
84 { USB_DEVICE(0x0489, 0xe057) },
85 { USB_DEVICE(0x13d3, 0x3393) },
86 { USB_DEVICE(0x0489, 0xe04e) },
88 /* Atheros AR5BBU12 with sflash firmware */
89 { USB_DEVICE(0x0489, 0xE02C) },
91 /* Atheros AR5BBU22 with sflash firmware */
92 { USB_DEVICE(0x0489, 0xE03C) },
93 { USB_DEVICE(0x0489, 0xE036) },
95 { } /* Terminating entry */
98 MODULE_DEVICE_TABLE(usb, ath3k_table);
100 #define BTUSB_ATH3012 0x80
101 /* This table is to load patch and sysconfig files
103 static struct usb_device_id ath3k_blist_tbl[] = {
105 /* Atheros AR3012 with sflash firmware*/
106 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
107 { USB_DEVICE(0x0cf3, 0x311D), .driver_info = BTUSB_ATH3012 },
108 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
109 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
110 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
111 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
112 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
113 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
114 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
115 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
116 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
118 /* Atheros AR5BBU22 with sflash firmware */
119 { USB_DEVICE(0x0489, 0xE03C), .driver_info = BTUSB_ATH3012 },
120 { USB_DEVICE(0x0489, 0xE036), .driver_info = BTUSB_ATH3012 },
122 { } /* Terminating entry */
125 #define USB_REQ_DFU_DNLOAD 1
126 #define BULK_SIZE 4096
127 #define FW_HDR_SIZE 20
129 static int ath3k_load_firmware(struct usb_device *udev,
130 const struct firmware *firmware)
133 int err, pipe, len, size, sent = 0;
134 int count = firmware->size;
136 BT_DBG("udev %p", udev);
138 pipe = usb_sndctrlpipe(udev, 0);
140 send_buf = kmalloc(BULK_SIZE, GFP_KERNEL);
142 BT_ERR("Can't allocate memory chunk for firmware");
146 memcpy(send_buf, firmware->data, 20);
147 if ((err = usb_control_msg(udev, pipe,
149 USB_TYPE_VENDOR, 0, 0,
150 send_buf, 20, USB_CTRL_SET_TIMEOUT)) < 0) {
151 BT_ERR("Can't change to loading configuration err");
158 size = min_t(uint, count, BULK_SIZE);
159 pipe = usb_sndbulkpipe(udev, 0x02);
160 memcpy(send_buf, firmware->data + sent, size);
162 err = usb_bulk_msg(udev, pipe, send_buf, size,
165 if (err || (len != size)) {
166 BT_ERR("Error in firmware loading err = %d,"
167 "len = %d, size = %d", err, len, size);
180 static int ath3k_get_state(struct usb_device *udev, unsigned char *state)
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);
190 static int ath3k_get_version(struct usb_device *udev,
191 struct ath3k_version *version)
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);
202 static int ath3k_load_fwfile(struct usb_device *udev,
203 const struct firmware *firmware)
206 int err, pipe, len, size, count, sent = 0;
209 count = firmware->size;
211 send_buf = kmalloc(BULK_SIZE, GFP_KERNEL);
213 BT_ERR("Can't allocate memory chunk for firmware");
217 size = min_t(uint, count, FW_HDR_SIZE);
218 memcpy(send_buf, firmware->data, size);
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);
225 BT_ERR("Can't change to loading configuration err");
234 size = min_t(uint, count, BULK_SIZE);
235 pipe = usb_sndbulkpipe(udev, 0x02);
237 memcpy(send_buf, firmware->data + sent, size);
239 err = usb_bulk_msg(udev, pipe, send_buf, size,
241 if (err || (len != size)) {
242 BT_ERR("Error in firmware loading err = %d,"
243 "len = %d, size = %d", err, len, size);
255 static int ath3k_switch_pid(struct usb_device *udev)
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);
265 static int ath3k_set_normal_mode(struct usb_device *udev)
267 unsigned char fw_state;
270 ret = ath3k_get_state(udev, &fw_state);
272 BT_ERR("Can't get state to change to normal mode err");
276 if ((fw_state & ATH3K_MODE_MASK) == ATH3K_NORMAL_MODE) {
277 BT_DBG("firmware was already in normal mode");
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);
287 static int ath3k_load_patch(struct usb_device *udev)
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;
295 ret = ath3k_get_state(udev, &fw_state);
297 BT_ERR("Can't get state to change to load ram patch err");
301 if (fw_state & ATH3K_PATCH_UPDATE) {
302 BT_DBG("Patch was already downloaded");
306 ret = ath3k_get_version(udev, &fw_version);
308 BT_ERR("Can't get version to change to load ram patch err");
312 snprintf(filename, ATH3K_NAME_LEN, "ar3k/AthrBT_0x%08x.dfu",
313 fw_version.rom_version);
315 ret = request_firmware(&firmware, filename, &udev->dev);
317 BT_ERR("Patch file not found %s", filename);
321 pt_version.rom_version = *(int *)(firmware->data + firmware->size - 8);
322 pt_version.build_version = *(int *)
323 (firmware->data + firmware->size - 4);
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);
332 ret = ath3k_load_fwfile(udev, firmware);
333 release_firmware(firmware);
338 static int ath3k_load_syscfg(struct usb_device *udev)
340 unsigned char fw_state;
341 char filename[ATH3K_NAME_LEN] = {0};
342 const struct firmware *firmware;
343 struct ath3k_version fw_version;
346 ret = ath3k_get_state(udev, &fw_state);
348 BT_ERR("Can't get state to change to load configration err");
352 ret = ath3k_get_version(udev, &fw_version);
354 BT_ERR("Can't get version to change to load ram patch err");
358 switch (fw_version.ref_clock) {
360 case ATH3K_XTAL_FREQ_26M:
363 case ATH3K_XTAL_FREQ_40M:
366 case ATH3K_XTAL_FREQ_19P2:
374 snprintf(filename, ATH3K_NAME_LEN, "ar3k/ramps_0x%08x_%d%s",
375 fw_version.rom_version, clk_value, ".dfu");
377 ret = request_firmware(&firmware, filename, &udev->dev);
379 BT_ERR("Configuration file not found %s", filename);
383 ret = ath3k_load_fwfile(udev, firmware);
384 release_firmware(firmware);
389 static int ath3k_probe(struct usb_interface *intf,
390 const struct usb_device_id *id)
392 const struct firmware *firmware;
393 struct usb_device *udev = interface_to_usbdev(intf);
396 BT_DBG("intf %p id %p", intf, id);
398 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
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);
409 /* load patch and sysconfig files for AR3012 */
410 if (id->driver_info & BTUSB_ATH3012) {
412 /* New firmware with patch and sysconfig files already loaded */
413 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x0001)
416 ret = ath3k_load_patch(udev);
418 BT_ERR("Loading patch file failed");
421 ret = ath3k_load_syscfg(udev);
423 BT_ERR("Loading sysconfig file failed");
426 ret = ath3k_set_normal_mode(udev);
428 BT_ERR("Set normal mode failed");
431 ath3k_switch_pid(udev);
435 ret = request_firmware(&firmware, ATH3K_FIRMWARE, &udev->dev);
438 BT_ERR("Firmware file \"%s\" not found",
441 BT_ERR("Firmware file \"%s\" request failed (err=%d)",
442 ATH3K_FIRMWARE, ret);
446 ret = ath3k_load_firmware(udev, firmware);
447 release_firmware(firmware);
452 static void ath3k_disconnect(struct usb_interface *intf)
454 BT_DBG("ath3k_disconnect intf %p", intf);
457 static struct usb_driver ath3k_driver = {
459 .probe = ath3k_probe,
460 .disconnect = ath3k_disconnect,
461 .id_table = ath3k_table,
462 .disable_hub_initiated_lpm = 1,
465 module_usb_driver(ath3k_driver);
467 MODULE_AUTHOR("Atheros Communications");
468 MODULE_DESCRIPTION("Atheros AR30xx firmware driver");
469 MODULE_VERSION(VERSION);
470 MODULE_LICENSE("GPL");
471 MODULE_FIRMWARE(ATH3K_FIRMWARE);