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(0x04CA, 0x3008) },
82 { USB_DEVICE(0x13d3, 0x3362) },
83 { USB_DEVICE(0x0CF3, 0xE004) },
84 { USB_DEVICE(0x0930, 0x0219) },
85 { USB_DEVICE(0x0489, 0xe057) },
86 { USB_DEVICE(0x13d3, 0x3393) },
87 { USB_DEVICE(0x0489, 0xe04e) },
88 { USB_DEVICE(0x0489, 0xe056) },
90 /* Atheros AR5BBU12 with sflash firmware */
91 { USB_DEVICE(0x0489, 0xE02C) },
93 /* Atheros AR5BBU22 with sflash firmware */
94 { USB_DEVICE(0x0489, 0xE03C) },
95 { USB_DEVICE(0x0489, 0xE036) },
97 { } /* Terminating entry */
100 MODULE_DEVICE_TABLE(usb, ath3k_table);
102 #define BTUSB_ATH3012 0x80
103 /* This table is to load patch and sysconfig files
105 static struct usb_device_id ath3k_blist_tbl[] = {
107 /* Atheros AR3012 with sflash firmware*/
108 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
109 { USB_DEVICE(0x0cf3, 0x311D), .driver_info = BTUSB_ATH3012 },
110 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
111 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
112 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
113 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
114 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
115 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
116 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
117 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
118 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
119 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
120 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
122 /* Atheros AR5BBU22 with sflash firmware */
123 { USB_DEVICE(0x0489, 0xE03C), .driver_info = BTUSB_ATH3012 },
124 { USB_DEVICE(0x0489, 0xE036), .driver_info = BTUSB_ATH3012 },
126 { } /* Terminating entry */
129 #define USB_REQ_DFU_DNLOAD 1
130 #define BULK_SIZE 4096
131 #define FW_HDR_SIZE 20
133 static int ath3k_load_firmware(struct usb_device *udev,
134 const struct firmware *firmware)
137 int err, pipe, len, size, sent = 0;
138 int count = firmware->size;
140 BT_DBG("udev %p", udev);
142 pipe = usb_sndctrlpipe(udev, 0);
144 send_buf = kmalloc(BULK_SIZE, GFP_KERNEL);
146 BT_ERR("Can't allocate memory chunk for firmware");
150 memcpy(send_buf, firmware->data, 20);
151 if ((err = usb_control_msg(udev, pipe,
153 USB_TYPE_VENDOR, 0, 0,
154 send_buf, 20, USB_CTRL_SET_TIMEOUT)) < 0) {
155 BT_ERR("Can't change to loading configuration err");
162 size = min_t(uint, count, BULK_SIZE);
163 pipe = usb_sndbulkpipe(udev, 0x02);
164 memcpy(send_buf, firmware->data + sent, size);
166 err = usb_bulk_msg(udev, pipe, send_buf, size,
169 if (err || (len != size)) {
170 BT_ERR("Error in firmware loading err = %d,"
171 "len = %d, size = %d", err, len, size);
184 static int ath3k_get_state(struct usb_device *udev, unsigned char *state)
188 pipe = usb_rcvctrlpipe(udev, 0);
189 return usb_control_msg(udev, pipe, ATH3K_GETSTATE,
190 USB_TYPE_VENDOR | USB_DIR_IN, 0, 0,
191 state, 0x01, USB_CTRL_SET_TIMEOUT);
194 static int ath3k_get_version(struct usb_device *udev,
195 struct ath3k_version *version)
199 pipe = usb_rcvctrlpipe(udev, 0);
200 return usb_control_msg(udev, pipe, ATH3K_GETVERSION,
201 USB_TYPE_VENDOR | USB_DIR_IN, 0, 0, version,
202 sizeof(struct ath3k_version),
203 USB_CTRL_SET_TIMEOUT);
206 static int ath3k_load_fwfile(struct usb_device *udev,
207 const struct firmware *firmware)
210 int err, pipe, len, size, count, sent = 0;
213 count = firmware->size;
215 send_buf = kmalloc(BULK_SIZE, GFP_KERNEL);
217 BT_ERR("Can't allocate memory chunk for firmware");
221 size = min_t(uint, count, FW_HDR_SIZE);
222 memcpy(send_buf, firmware->data, size);
224 pipe = usb_sndctrlpipe(udev, 0);
225 ret = usb_control_msg(udev, pipe, ATH3K_DNLOAD,
226 USB_TYPE_VENDOR, 0, 0, send_buf,
227 size, USB_CTRL_SET_TIMEOUT);
229 BT_ERR("Can't change to loading configuration err");
238 size = min_t(uint, count, BULK_SIZE);
239 pipe = usb_sndbulkpipe(udev, 0x02);
241 memcpy(send_buf, firmware->data + sent, size);
243 err = usb_bulk_msg(udev, pipe, send_buf, size,
245 if (err || (len != size)) {
246 BT_ERR("Error in firmware loading err = %d,"
247 "len = %d, size = %d", err, len, size);
259 static int ath3k_switch_pid(struct usb_device *udev)
263 pipe = usb_sndctrlpipe(udev, 0);
264 return usb_control_msg(udev, pipe, USB_REG_SWITCH_VID_PID,
265 USB_TYPE_VENDOR, 0, 0,
266 NULL, 0, USB_CTRL_SET_TIMEOUT);
269 static int ath3k_set_normal_mode(struct usb_device *udev)
271 unsigned char fw_state;
274 ret = ath3k_get_state(udev, &fw_state);
276 BT_ERR("Can't get state to change to normal mode err");
280 if ((fw_state & ATH3K_MODE_MASK) == ATH3K_NORMAL_MODE) {
281 BT_DBG("firmware was already in normal mode");
285 pipe = usb_sndctrlpipe(udev, 0);
286 return usb_control_msg(udev, pipe, ATH3K_SET_NORMAL_MODE,
287 USB_TYPE_VENDOR, 0, 0,
288 NULL, 0, USB_CTRL_SET_TIMEOUT);
291 static int ath3k_load_patch(struct usb_device *udev)
293 unsigned char fw_state;
294 char filename[ATH3K_NAME_LEN] = {0};
295 const struct firmware *firmware;
296 struct ath3k_version fw_version, pt_version;
299 ret = ath3k_get_state(udev, &fw_state);
301 BT_ERR("Can't get state to change to load ram patch err");
305 if (fw_state & ATH3K_PATCH_UPDATE) {
306 BT_DBG("Patch was already downloaded");
310 ret = ath3k_get_version(udev, &fw_version);
312 BT_ERR("Can't get version to change to load ram patch err");
316 snprintf(filename, ATH3K_NAME_LEN, "ar3k/AthrBT_0x%08x.dfu",
317 fw_version.rom_version);
319 ret = request_firmware(&firmware, filename, &udev->dev);
321 BT_ERR("Patch file not found %s", filename);
325 pt_version.rom_version = *(int *)(firmware->data + firmware->size - 8);
326 pt_version.build_version = *(int *)
327 (firmware->data + firmware->size - 4);
329 if ((pt_version.rom_version != fw_version.rom_version) ||
330 (pt_version.build_version <= fw_version.build_version)) {
331 BT_ERR("Patch file version did not match with firmware");
332 release_firmware(firmware);
336 ret = ath3k_load_fwfile(udev, firmware);
337 release_firmware(firmware);
342 static int ath3k_load_syscfg(struct usb_device *udev)
344 unsigned char fw_state;
345 char filename[ATH3K_NAME_LEN] = {0};
346 const struct firmware *firmware;
347 struct ath3k_version fw_version;
350 ret = ath3k_get_state(udev, &fw_state);
352 BT_ERR("Can't get state to change to load configuration err");
356 ret = ath3k_get_version(udev, &fw_version);
358 BT_ERR("Can't get version to change to load ram patch err");
362 switch (fw_version.ref_clock) {
364 case ATH3K_XTAL_FREQ_26M:
367 case ATH3K_XTAL_FREQ_40M:
370 case ATH3K_XTAL_FREQ_19P2:
378 snprintf(filename, ATH3K_NAME_LEN, "ar3k/ramps_0x%08x_%d%s",
379 fw_version.rom_version, clk_value, ".dfu");
381 ret = request_firmware(&firmware, filename, &udev->dev);
383 BT_ERR("Configuration file not found %s", filename);
387 ret = ath3k_load_fwfile(udev, firmware);
388 release_firmware(firmware);
393 static int ath3k_probe(struct usb_interface *intf,
394 const struct usb_device_id *id)
396 const struct firmware *firmware;
397 struct usb_device *udev = interface_to_usbdev(intf);
400 BT_DBG("intf %p id %p", intf, id);
402 if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
405 /* match device ID in ath3k blacklist table */
406 if (!id->driver_info) {
407 const struct usb_device_id *match;
408 match = usb_match_id(intf, ath3k_blist_tbl);
413 /* load patch and sysconfig files for AR3012 */
414 if (id->driver_info & BTUSB_ATH3012) {
416 /* New firmware with patch and sysconfig files already loaded */
417 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x0001)
420 ret = ath3k_load_patch(udev);
422 BT_ERR("Loading patch file failed");
425 ret = ath3k_load_syscfg(udev);
427 BT_ERR("Loading sysconfig file failed");
430 ret = ath3k_set_normal_mode(udev);
432 BT_ERR("Set normal mode failed");
435 ath3k_switch_pid(udev);
439 ret = request_firmware(&firmware, ATH3K_FIRMWARE, &udev->dev);
442 BT_ERR("Firmware file \"%s\" not found",
445 BT_ERR("Firmware file \"%s\" request failed (err=%d)",
446 ATH3K_FIRMWARE, ret);
450 ret = ath3k_load_firmware(udev, firmware);
451 release_firmware(firmware);
456 static void ath3k_disconnect(struct usb_interface *intf)
458 BT_DBG("ath3k_disconnect intf %p", intf);
461 static struct usb_driver ath3k_driver = {
463 .probe = ath3k_probe,
464 .disconnect = ath3k_disconnect,
465 .id_table = ath3k_table,
466 .disable_hub_initiated_lpm = 1,
469 module_usb_driver(ath3k_driver);
471 MODULE_AUTHOR("Atheros Communications");
472 MODULE_DESCRIPTION("Atheros AR30xx firmware driver");
473 MODULE_VERSION(VERSION);
474 MODULE_LICENSE("GPL");
475 MODULE_FIRMWARE(ATH3K_FIRMWARE);