/* * *  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");