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) },
71 /* Atheros AR9285 Malbec with sflash firmware */
72 { USB_DEVICE(0x03F0, 0x311D) },
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) },
84 /* Atheros AR5BBU12 with sflash firmware */
85 { USB_DEVICE(0x0489, 0xE02C) },
87 /* Atheros AR5BBU22 with sflash firmware */
88 { USB_DEVICE(0x0489, 0xE03C) },
90 { } /* Terminating entry */
93 MODULE_DEVICE_TABLE(usb, ath3k_table);
95 #define BTUSB_ATH3012 0x80
96 /* This table is to load patch and sysconfig files
98 static struct usb_device_id ath3k_blist_tbl[] = {
100 /* Atheros AR3012 with sflash firmware*/
101 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
102 { USB_DEVICE(0x0cf3, 0x311D), .driver_info = BTUSB_ATH3012 },
103 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
104 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
105 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
106 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
107 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
108 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
110 /* Atheros AR5BBU22 with sflash firmware */
111 { USB_DEVICE(0x0489, 0xE03C), .driver_info = BTUSB_ATH3012 },
113 { } /* Terminating entry */
116 #define USB_REQ_DFU_DNLOAD 1
117 #define BULK_SIZE 4096
118 #define FW_HDR_SIZE 20
120 static int ath3k_load_firmware(struct usb_device *udev,
121 const struct firmware *firmware)
124 int err, pipe, len, size, sent = 0;
125 int count = firmware->size;
127 BT_DBG("udev %p", udev);
129 pipe = usb_sndctrlpipe(udev, 0);
131 send_buf = kmalloc(BULK_SIZE, GFP_KERNEL);
133 BT_ERR("Can't allocate memory chunk for firmware");
137 memcpy(send_buf, firmware->data, 20);
138 if ((err = usb_control_msg(udev, pipe,
140 USB_TYPE_VENDOR, 0, 0,
141 send_buf, 20, USB_CTRL_SET_TIMEOUT)) < 0) {
142 BT_ERR("Can't change to loading configuration err");
149 size = min_t(uint, count, BULK_SIZE);
150 pipe = usb_sndbulkpipe(udev, 0x02);
151 memcpy(send_buf, firmware->data + sent, size);
153 err = usb_bulk_msg(udev, pipe, send_buf, size,
156 if (err || (len != size)) {
157 BT_ERR("Error in firmware loading err = %d,"
158 "len = %d, size = %d", err, len, size);
171 static int ath3k_get_state(struct usb_device *udev, unsigned char *state)
175 pipe = usb_rcvctrlpipe(udev, 0);
176 return usb_control_msg(udev, pipe, ATH3K_GETSTATE,
177 USB_TYPE_VENDOR | USB_DIR_IN, 0, 0,
178 state, 0x01, USB_CTRL_SET_TIMEOUT);
181 static int ath3k_get_version(struct usb_device *udev,
182 struct ath3k_version *version)
186 pipe = usb_rcvctrlpipe(udev, 0);
187 return usb_control_msg(udev, pipe, ATH3K_GETVERSION,
188 USB_TYPE_VENDOR | USB_DIR_IN, 0, 0, version,
189 sizeof(struct ath3k_version),
190 USB_CTRL_SET_TIMEOUT);
193 static int ath3k_load_fwfile(struct usb_device *udev,
194 const struct firmware *firmware)
197 int err, pipe, len, size, count, sent = 0;
200 count = firmware->size;
202 send_buf = kmalloc(BULK_SIZE, GFP_KERNEL);
204 BT_ERR("Can't allocate memory chunk for firmware");
208 size = min_t(uint, count, FW_HDR_SIZE);
209 memcpy(send_buf, firmware->data, size);
211 pipe = usb_sndctrlpipe(udev, 0);
212 ret = usb_control_msg(udev, pipe, ATH3K_DNLOAD,
213 USB_TYPE_VENDOR, 0, 0, send_buf,
214 size, USB_CTRL_SET_TIMEOUT);
216 BT_ERR("Can't change to loading configuration err");
225 size = min_t(uint, count, BULK_SIZE);
226 pipe = usb_sndbulkpipe(udev, 0x02);
228 memcpy(send_buf, firmware->data + sent, size);
230 err = usb_bulk_msg(udev, pipe, send_buf, size,
232 if (err || (len != size)) {
233 BT_ERR("Error in firmware loading err = %d,"
234 "len = %d, size = %d", err, len, size);
246 static int ath3k_switch_pid(struct usb_device *udev)
250 pipe = usb_sndctrlpipe(udev, 0);
251 return usb_control_msg(udev, pipe, USB_REG_SWITCH_VID_PID,
252 USB_TYPE_VENDOR, 0, 0,
253 NULL, 0, USB_CTRL_SET_TIMEOUT);
256 static int ath3k_set_normal_mode(struct usb_device *udev)
258 unsigned char fw_state;
261 ret = ath3k_get_state(udev, &fw_state);
263 BT_ERR("Can't get state to change to normal mode err");
267 if ((fw_state & ATH3K_MODE_MASK) == ATH3K_NORMAL_MODE) {
268 BT_DBG("firmware was already in normal mode");
272 pipe = usb_sndctrlpipe(udev, 0);
273 return usb_control_msg(udev, pipe, ATH3K_SET_NORMAL_MODE,
274 USB_TYPE_VENDOR, 0, 0,
275 NULL, 0, USB_CTRL_SET_TIMEOUT);
278 static int ath3k_load_patch(struct usb_device *udev)
280 unsigned char fw_state;
281 char filename[ATH3K_NAME_LEN] = {0};
282 const struct firmware *firmware;
283 struct ath3k_version fw_version, pt_version;
286 ret = ath3k_get_state(udev, &fw_state);
288 BT_ERR("Can't get state to change to load ram patch err");
292 if (fw_state & ATH3K_PATCH_UPDATE) {
293 BT_DBG("Patch was already downloaded");
297 ret = ath3k_get_version(udev, &fw_version);
299 BT_ERR("Can't get version to change to load ram patch err");
303 snprintf(filename, ATH3K_NAME_LEN, "ar3k/AthrBT_0x%08x.dfu",
304 fw_version.rom_version);
306 ret = request_firmware(&firmware, filename, &udev->dev);
308 BT_ERR("Patch file not found %s", filename);
312 pt_version.rom_version = *(int *)(firmware->data + firmware->size - 8);
313 pt_version.build_version = *(int *)
314 (firmware->data + firmware->size - 4);
316 if ((pt_version.rom_version != fw_version.rom_version) ||
317 (pt_version.build_version <= fw_version.build_version)) {
318 BT_ERR("Patch file version did not match with firmware");
319 release_firmware(firmware);
323 ret = ath3k_load_fwfile(udev, firmware);
324 release_firmware(firmware);
329 static int ath3k_load_syscfg(struct usb_device *udev)
331 unsigned char fw_state;
332 char filename[ATH3K_NAME_LEN] = {0};
333 const struct firmware *firmware;
334 struct ath3k_version fw_version;
337 ret = ath3k_get_state(udev, &fw_state);
339 BT_ERR("Can't get state to change to load configration err");
343 ret = ath3k_get_version(udev, &fw_version);
345 BT_ERR("Can't get version to change to load ram patch err");
349 switch (fw_version.ref_clock) {
351 case ATH3K_XTAL_FREQ_26M:
354 case ATH3K_XTAL_FREQ_40M:
357 case ATH3K_XTAL_FREQ_19P2:
365 snprintf(filename, ATH3K_NAME_LEN, "ar3k/ramps_0x%08x_%d%s",
366 fw_version.rom_version, clk_value, ".dfu");
368 ret = request_firmware(&firmware, filename, &udev->dev);
370 BT_ERR("Configuration file not found %s", filename);
374 ret = ath3k_load_fwfile(udev, firmware);
375 release_firmware(firmware);
380 static int ath3k_probe(struct usb_interface *intf,
381 const struct usb_device_id *id)
383 const struct firmware *firmware;
384 struct usb_device *udev = interface_to_usbdev(intf);
387 BT_DBG("intf %p id %p", intf, id);
389 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
392 /* match device ID in ath3k blacklist table */
393 if (!id->driver_info) {
394 const struct usb_device_id *match;
395 match = usb_match_id(intf, ath3k_blist_tbl);
400 /* load patch and sysconfig files for AR3012 */
401 if (id->driver_info & BTUSB_ATH3012) {
403 /* New firmware with patch and sysconfig files already loaded */
404 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x0001)
407 ret = ath3k_load_patch(udev);
409 BT_ERR("Loading patch file failed");
412 ret = ath3k_load_syscfg(udev);
414 BT_ERR("Loading sysconfig file failed");
417 ret = ath3k_set_normal_mode(udev);
419 BT_ERR("Set normal mode failed");
422 ath3k_switch_pid(udev);
426 ret = request_firmware(&firmware, ATH3K_FIRMWARE, &udev->dev);
429 BT_ERR("Firmware file \"%s\" not found",
432 BT_ERR("Firmware file \"%s\" request failed (err=%d)",
433 ATH3K_FIRMWARE, ret);
437 ret = ath3k_load_firmware(udev, firmware);
438 release_firmware(firmware);
443 static void ath3k_disconnect(struct usb_interface *intf)
445 BT_DBG("ath3k_disconnect intf %p", intf);
448 static struct usb_driver ath3k_driver = {
450 .probe = ath3k_probe,
451 .disconnect = ath3k_disconnect,
452 .id_table = ath3k_table,
453 .disable_hub_initiated_lpm = 1,
456 module_usb_driver(ath3k_driver);
458 MODULE_AUTHOR("Atheros Communications");
459 MODULE_DESCRIPTION("Atheros AR30xx firmware driver");
460 MODULE_VERSION(VERSION);
461 MODULE_LICENSE("GPL");
462 MODULE_FIRMWARE(ATH3K_FIRMWARE);