linux-imx

/*

 *

 *  Bluetooth HCI UART driver for marvell devices

 *

 *  Copyright (C) 2016  Marvell International Ltd.

 *  Copyright (C) 2016  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/kernel.h>

#include <linux/errno.h>

#include <linux/skbuff.h>

#include <linux/firmware.h>

#include <linux/module.h>

#include <linux/tty.h>

​

#include <net/bluetooth/bluetooth.h>

#include <net/bluetooth/hci_core.h>

​

#include "hci_uart.h"

​

#define HCI_FW_REQ_PKT 0xA5

#define HCI_CHIP_VER_PKT 0xAA

​

#define MRVL_ACK 0x5A

#define MRVL_NAK 0xBF

#define MRVL_RAW_DATA 0x1F

​

enum {

    STATE_CHIP_VER_PENDING,

    STATE_FW_REQ_PENDING,

};

​

struct mrvl_data {

    struct sk_buff *rx_skb;

    struct sk_buff_head txq;

    struct sk_buff_head rawq;

    unsigned long flags;

    unsigned int tx_len;

    u8 id, rev;

};

​

struct hci_mrvl_pkt {

    __le16 lhs;

    __le16 rhs;

} __packed;

#define HCI_MRVL_PKT_SIZE 4

​

static int mrvl_open(struct hci_uart *hu)