forked from luck/tmp_suning_uos_patched
96 lines
2.6 KiB
C
96 lines
2.6 KiB
C
|
/*
|
||
|
|
*
|
||
|
|
* Bluetooth support for Intel devices
|
||
|
|
*
|
||
|
|
* Copyright (C) 2015 Intel Corporation
|
||
|
|
*
|
||
|
|
*
|
||
|
|
* 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 <net/bluetooth/bluetooth.h>
|
||
|
|
#include <net/bluetooth/hci_core.h>
|
||
|
|
|
||
|
|
#include "btintel.h"
|
||
|
|
|
||
|
|
#define VERSION "0.1"
|
||
|
|
|
||
|
|
#define BDADDR_INTEL (&(bdaddr_t) {{0x00, 0x8b, 0x9e, 0x19, 0x03, 0x00}})
|
||
|
|
|
||
|
|
int btintel_check_bdaddr(struct hci_dev *hdev)
|
||
|
|
{
|
||
|
|
struct hci_rp_read_bd_addr *bda;
|
||
|
|
struct sk_buff *skb;
|
||
|
|
|
||
|
|
skb = __hci_cmd_sync(hdev, HCI_OP_READ_BD_ADDR, 0, NULL,
|
||
|
|
HCI_INIT_TIMEOUT);
|
||
|
|
if (IS_ERR(skb)) {
|
||
|
|
int err = PTR_ERR(skb);
|
||
|
|
BT_ERR("%s: Reading Intel device address failed (%d)",
|
||
|
|
hdev->name, err);
|
||
|
|
return err;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (skb->len != sizeof(*bda)) {
|
||
|
|
BT_ERR("%s: Intel device address length mismatch", hdev->name);
|
||
|
|
kfree_skb(skb);
|
||
|
|
return -EIO;
|
||
|
|
}
|
||
|
|
|
||
|
|
bda = (struct hci_rp_read_bd_addr *)skb->data;
|
||
|
|
|
||
|
|
/* For some Intel based controllers, the default Bluetooth device
|
||
|
|
* address 00:03:19:9E:8B:00 can be found. These controllers are
|
||
|
|
* fully operational, but have the danger of duplicate addresses
|
||
|
|
* and that in turn can cause problems with Bluetooth operation.
|
||
|
|
*/
|
||
|
|
if (!bacmp(&bda->bdaddr, BDADDR_INTEL)) {
|
||
|
|
BT_ERR("%s: Found Intel default device address (%pMR)",
|
||
|
|
hdev->name, &bda->bdaddr);
|
||
|
|
set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
|
||
|
|
}
|
||
|
|
|
||
|
|
kfree_skb(skb);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
EXPORT_SYMBOL_GPL(btintel_check_bdaddr);
|
||
|
|
|
||
|
|
int btintel_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr)
|
||
|
|
{
|
||
|
|
struct sk_buff *skb;
|
||
|
|
int err;
|
||
|
|
|
||
|
|
skb = __hci_cmd_sync(hdev, 0xfc31, 6, bdaddr, HCI_INIT_TIMEOUT);
|
||
|
|
if (IS_ERR(skb)) {
|
||
|
|
err = PTR_ERR(skb);
|
||
|
|
BT_ERR("%s: Changing Intel device address failed (%d)",
|
||
|
|
hdev->name, err);
|
||
|
|
return err;
|
||
|
|
}
|
||
|
|
kfree_skb(skb);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
EXPORT_SYMBOL_GPL(btintel_set_bdaddr);
|
||
|
|
|
||
|
|
MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
|
||
|
|
MODULE_DESCRIPTION("Bluetooth support for Intel devices ver " VERSION);
|
||
|
|
MODULE_VERSION(VERSION);
|
||
|
|
MODULE_LICENSE("GPL");
|