440 lines
10 KiB
C
440 lines
10 KiB
C
/*
|
|
* Copyright (c) 2008-2009 Atheros Communications Inc.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*
|
|
*/
|
|
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/init.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/types.h>
|
|
#include <linux/errno.h>
|
|
#include <linux/device.h>
|
|
#include <linux/firmware.h>
|
|
#include <linux/usb.h>
|
|
#include <net/bluetooth/bluetooth.h>
|
|
|
|
#define VERSION "1.0"
|
|
#define ATH3K_FIRMWARE "ath3k-1.fw"
|
|
|
|
#define ATH3K_DNLOAD 0x01
|
|
#define ATH3K_GETSTATE 0x05
|
|
#define ATH3K_SET_NORMAL_MODE 0x07
|
|
#define ATH3K_GETVERSION 0x09
|
|
#define USB_REG_SWITCH_VID_PID 0x0a
|
|
|
|
#define ATH3K_MODE_MASK 0x3F
|
|
#define ATH3K_NORMAL_MODE 0x0E
|
|
|
|
#define ATH3K_PATCH_UPDATE 0x80
|
|
#define ATH3K_SYSCFG_UPDATE 0x40
|
|
|
|
#define ATH3K_XTAL_FREQ_26M 0x00
|
|
#define ATH3K_XTAL_FREQ_40M 0x01
|
|
#define ATH3K_XTAL_FREQ_19P2 0x02
|
|
#define ATH3K_NAME_LEN 0xFF
|
|
|
|
struct ath3k_version {
|
|
unsigned int rom_version;
|
|
unsigned int build_version;
|
|
unsigned int ram_version;
|
|
unsigned char ref_clock;
|
|
unsigned char reserved[0x07];
|
|
};
|
|
|
|
static struct usb_device_id ath3k_table[] = {
|
|
/* Atheros AR3011 */
|
|
{ USB_DEVICE(0x0CF3, 0x3000) },
|
|
|
|
/* Atheros AR3011 with sflash firmware*/
|
|
{ USB_DEVICE(0x0CF3, 0x3002) },
|
|
{ USB_DEVICE(0x13d3, 0x3304) },
|
|
{ USB_DEVICE(0x0930, 0x0215) },
|
|
|
|
/* Atheros AR9285 Malbec with sflash firmware */
|
|
{ USB_DEVICE(0x03F0, 0x311D) },
|
|
|
|
/* Atheros AR3012 with sflash firmware*/
|
|
{ USB_DEVICE(0x0CF3, 0x3004) },
|
|
|
|
/* Atheros AR5BBU12 with sflash firmware */
|
|
{ USB_DEVICE(0x0489, 0xE02C) },
|
|
|
|
{ } /* Terminating entry */
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(usb, ath3k_table);
|
|
|
|
#define BTUSB_ATH3012 0x80
|
|
/* This table is to load patch and sysconfig files
|
|
* for AR3012 */
|
|
static struct usb_device_id ath3k_blist_tbl[] = {
|
|
|
|
/* Atheros AR3012 with sflash firmware*/
|
|
{ USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
|
|
|
|
{ } /* Terminating entry */
|
|
};
|
|
|
|
#define USB_REQ_DFU_DNLOAD 1
|
|
#define BULK_SIZE 4096
|
|
#define FW_HDR_SIZE 20
|
|
|
|
static int ath3k_load_firmware(struct usb_device *udev,
|
|
const struct firmware *firmware)
|
|
{
|
|
u8 *send_buf;
|
|
int err, pipe, len, size, sent = 0;
|
|
int count = firmware->size;
|
|
|
|
BT_DBG("udev %p", udev);
|
|
|
|
pipe = usb_sndctrlpipe(udev, 0);
|
|
|
|
send_buf = kmalloc(BULK_SIZE, GFP_KERNEL);
|
|
if (!send_buf) {
|
|
BT_ERR("Can't allocate memory chunk for firmware");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
memcpy(send_buf, firmware->data, 20);
|
|
if ((err = usb_control_msg(udev, pipe,
|
|
USB_REQ_DFU_DNLOAD,
|
|
USB_TYPE_VENDOR, 0, 0,
|
|
send_buf, 20, USB_CTRL_SET_TIMEOUT)) < 0) {
|
|
BT_ERR("Can't change to loading configuration err");
|
|
goto error;
|
|
}
|
|
sent += 20;
|
|
count -= 20;
|
|
|
|
while (count) {
|
|
size = min_t(uint, count, BULK_SIZE);
|
|
pipe = usb_sndbulkpipe(udev, 0x02);
|
|
memcpy(send_buf, firmware->data + sent, size);
|
|
|
|
err = usb_bulk_msg(udev, pipe, send_buf, size,
|
|
&len, 3000);
|
|
|
|
if (err || (len != size)) {
|
|
BT_ERR("Error in firmware loading err = %d,"
|
|
"len = %d, size = %d", err, len, size);
|
|
goto error;
|
|
}
|
|
|
|
sent += size;
|
|
count -= size;
|
|
}
|
|
|
|
error:
|
|
kfree(send_buf);
|
|
return err;
|
|
}
|
|
|
|
static int ath3k_get_state(struct usb_device *udev, unsigned char *state)
|
|
{
|
|
int pipe = 0;
|
|
|
|
pipe = usb_rcvctrlpipe(udev, 0);
|
|
return usb_control_msg(udev, pipe, ATH3K_GETSTATE,
|
|
USB_TYPE_VENDOR | USB_DIR_IN, 0, 0,
|
|
state, 0x01, USB_CTRL_SET_TIMEOUT);
|
|
}
|
|
|
|
static int ath3k_get_version(struct usb_device *udev,
|
|
struct ath3k_version *version)
|
|
{
|
|
int pipe = 0;
|
|
|
|
pipe = usb_rcvctrlpipe(udev, 0);
|
|
return usb_control_msg(udev, pipe, ATH3K_GETVERSION,
|
|
USB_TYPE_VENDOR | USB_DIR_IN, 0, 0, version,
|
|
sizeof(struct ath3k_version),
|
|
USB_CTRL_SET_TIMEOUT);
|
|
}
|
|
|
|
static int ath3k_load_fwfile(struct usb_device *udev,
|
|
const struct firmware *firmware)
|
|
{
|
|
u8 *send_buf;
|
|
int err, pipe, len, size, count, sent = 0;
|
|
int ret;
|
|
|
|
count = firmware->size;
|
|
|
|
send_buf = kmalloc(BULK_SIZE, GFP_KERNEL);
|
|
if (!send_buf) {
|
|
BT_ERR("Can't allocate memory chunk for firmware");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
size = min_t(uint, count, FW_HDR_SIZE);
|
|
memcpy(send_buf, firmware->data, size);
|
|
|
|
pipe = usb_sndctrlpipe(udev, 0);
|
|
ret = usb_control_msg(udev, pipe, ATH3K_DNLOAD,
|
|
USB_TYPE_VENDOR, 0, 0, send_buf,
|
|
size, USB_CTRL_SET_TIMEOUT);
|
|
if (ret < 0) {
|
|
BT_ERR("Can't change to loading configuration err");
|
|
kfree(send_buf);
|
|
return ret;
|
|
}
|
|
|
|
sent += size;
|
|
count -= size;
|
|
|
|
while (count) {
|
|
size = min_t(uint, count, BULK_SIZE);
|
|
pipe = usb_sndbulkpipe(udev, 0x02);
|
|
|
|
memcpy(send_buf, firmware->data + sent, size);
|
|
|
|
err = usb_bulk_msg(udev, pipe, send_buf, size,
|
|
&len, 3000);
|
|
if (err || (len != size)) {
|
|
BT_ERR("Error in firmware loading err = %d,"
|
|
"len = %d, size = %d", err, len, size);
|
|
kfree(send_buf);
|
|
return err;
|
|
}
|
|
sent += size;
|
|
count -= size;
|
|
}
|
|
|
|
kfree(send_buf);
|
|
return 0;
|
|
}
|
|
|
|
static int ath3k_switch_pid(struct usb_device *udev)
|
|
{
|
|
int pipe = 0;
|
|
|
|
pipe = usb_sndctrlpipe(udev, 0);
|
|
return usb_control_msg(udev, pipe, USB_REG_SWITCH_VID_PID,
|
|
USB_TYPE_VENDOR, 0, 0,
|
|
NULL, 0, USB_CTRL_SET_TIMEOUT);
|
|
}
|
|
|
|
static int ath3k_set_normal_mode(struct usb_device *udev)
|
|
{
|
|
unsigned char fw_state;
|
|
int pipe = 0, ret;
|
|
|
|
ret = ath3k_get_state(udev, &fw_state);
|
|
if (ret < 0) {
|
|
BT_ERR("Can't get state to change to normal mode err");
|
|
return ret;
|
|
}
|
|
|
|
if ((fw_state & ATH3K_MODE_MASK) == ATH3K_NORMAL_MODE) {
|
|
BT_DBG("firmware was already in normal mode");
|
|
return 0;
|
|
}
|
|
|
|
pipe = usb_sndctrlpipe(udev, 0);
|
|
return usb_control_msg(udev, pipe, ATH3K_SET_NORMAL_MODE,
|
|
USB_TYPE_VENDOR, 0, 0,
|
|
NULL, 0, USB_CTRL_SET_TIMEOUT);
|
|
}
|
|
|
|
static int ath3k_load_patch(struct usb_device *udev)
|
|
{
|
|
unsigned char fw_state;
|
|
char filename[ATH3K_NAME_LEN] = {0};
|
|
const struct firmware *firmware;
|
|
struct ath3k_version fw_version, pt_version;
|
|
int ret;
|
|
|
|
ret = ath3k_get_state(udev, &fw_state);
|
|
if (ret < 0) {
|
|
BT_ERR("Can't get state to change to load ram patch err");
|
|
return ret;
|
|
}
|
|
|
|
if (fw_state & ATH3K_PATCH_UPDATE) {
|
|
BT_DBG("Patch was already downloaded");
|
|
return 0;
|
|
}
|
|
|
|
ret = ath3k_get_version(udev, &fw_version);
|
|
if (ret < 0) {
|
|
BT_ERR("Can't get version to change to load ram patch err");
|
|
return ret;
|
|
}
|
|
|
|
snprintf(filename, ATH3K_NAME_LEN, "ar3k/AthrBT_0x%08x.dfu",
|
|
fw_version.rom_version);
|
|
|
|
ret = request_firmware(&firmware, filename, &udev->dev);
|
|
if (ret < 0) {
|
|
BT_ERR("Patch file not found %s", filename);
|
|
return ret;
|
|
}
|
|
|
|
pt_version.rom_version = *(int *)(firmware->data + firmware->size - 8);
|
|
pt_version.build_version = *(int *)
|
|
(firmware->data + firmware->size - 4);
|
|
|
|
if ((pt_version.rom_version != fw_version.rom_version) ||
|
|
(pt_version.build_version <= fw_version.build_version)) {
|
|
BT_ERR("Patch file version did not match with firmware");
|
|
release_firmware(firmware);
|
|
return -EINVAL;
|
|
}
|
|
|
|
ret = ath3k_load_fwfile(udev, firmware);
|
|
release_firmware(firmware);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int ath3k_load_syscfg(struct usb_device *udev)
|
|
{
|
|
unsigned char fw_state;
|
|
char filename[ATH3K_NAME_LEN] = {0};
|
|
const struct firmware *firmware;
|
|
struct ath3k_version fw_version;
|
|
int clk_value, ret;
|
|
|
|
ret = ath3k_get_state(udev, &fw_state);
|
|
if (ret < 0) {
|
|
BT_ERR("Can't get state to change to load configration err");
|
|
return -EBUSY;
|
|
}
|
|
|
|
ret = ath3k_get_version(udev, &fw_version);
|
|
if (ret < 0) {
|
|
BT_ERR("Can't get version to change to load ram patch err");
|
|
return ret;
|
|
}
|
|
|
|
switch (fw_version.ref_clock) {
|
|
|
|
case ATH3K_XTAL_FREQ_26M:
|
|
clk_value = 26;
|
|
break;
|
|
case ATH3K_XTAL_FREQ_40M:
|
|
clk_value = 40;
|
|
break;
|
|
case ATH3K_XTAL_FREQ_19P2:
|
|
clk_value = 19;
|
|
break;
|
|
default:
|
|
clk_value = 0;
|
|
break;
|
|
}
|
|
|
|
snprintf(filename, ATH3K_NAME_LEN, "ar3k/ramps_0x%08x_%d%s",
|
|
fw_version.rom_version, clk_value, ".dfu");
|
|
|
|
ret = request_firmware(&firmware, filename, &udev->dev);
|
|
if (ret < 0) {
|
|
BT_ERR("Configuration file not found %s", filename);
|
|
return ret;
|
|
}
|
|
|
|
ret = ath3k_load_fwfile(udev, firmware);
|
|
release_firmware(firmware);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int ath3k_probe(struct usb_interface *intf,
|
|
const struct usb_device_id *id)
|
|
{
|
|
const struct firmware *firmware;
|
|
struct usb_device *udev = interface_to_usbdev(intf);
|
|
int ret;
|
|
|
|
BT_DBG("intf %p id %p", intf, id);
|
|
|
|
if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
|
|
return -ENODEV;
|
|
|
|
/* match device ID in ath3k blacklist table */
|
|
if (!id->driver_info) {
|
|
const struct usb_device_id *match;
|
|
match = usb_match_id(intf, ath3k_blist_tbl);
|
|
if (match)
|
|
id = match;
|
|
}
|
|
|
|
/* load patch and sysconfig files for AR3012 */
|
|
if (id->driver_info & BTUSB_ATH3012) {
|
|
|
|
/* New firmware with patch and sysconfig files already loaded */
|
|
if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x0001)
|
|
return -ENODEV;
|
|
|
|
ret = ath3k_load_patch(udev);
|
|
if (ret < 0) {
|
|
BT_ERR("Loading patch file failed");
|
|
return ret;
|
|
}
|
|
ret = ath3k_load_syscfg(udev);
|
|
if (ret < 0) {
|
|
BT_ERR("Loading sysconfig file failed");
|
|
return ret;
|
|
}
|
|
ret = ath3k_set_normal_mode(udev);
|
|
if (ret < 0) {
|
|
BT_ERR("Set normal mode failed");
|
|
return ret;
|
|
}
|
|
ath3k_switch_pid(udev);
|
|
return 0;
|
|
}
|
|
|
|
ret = request_firmware(&firmware, ATH3K_FIRMWARE, &udev->dev);
|
|
if (ret < 0) {
|
|
if (ret == -ENOENT)
|
|
BT_ERR("Firmware file \"%s\" not found",
|
|
ATH3K_FIRMWARE);
|
|
else
|
|
BT_ERR("Firmware file \"%s\" request failed (err=%d)",
|
|
ATH3K_FIRMWARE, ret);
|
|
return ret;
|
|
}
|
|
|
|
ret = ath3k_load_firmware(udev, firmware);
|
|
release_firmware(firmware);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void ath3k_disconnect(struct usb_interface *intf)
|
|
{
|
|
BT_DBG("ath3k_disconnect intf %p", intf);
|
|
}
|
|
|
|
static struct usb_driver ath3k_driver = {
|
|
.name = "ath3k",
|
|
.probe = ath3k_probe,
|
|
.disconnect = ath3k_disconnect,
|
|
.id_table = ath3k_table,
|
|
};
|
|
|
|
module_usb_driver(ath3k_driver);
|
|
|
|
MODULE_AUTHOR("Atheros Communications");
|
|
MODULE_DESCRIPTION("Atheros AR30xx firmware driver");
|
|
MODULE_VERSION(VERSION);
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_FIRMWARE(ATH3K_FIRMWARE);
|