hci_uart.h

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/*
 *
 *  Bluetooth HCI UART driver
 *
 *  Copyright (C) 2000-2001  Qualcomm Incorporated
 *  Copyright (C) 2002-2003  Maxim Krasnyansky <[email protected]>
 *  Copyright (C) 2004-2005  Marcel Holtmann <[email protected]>
 *
 *
 *  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
 *
 */

#ifndef N_HCI
#define N_HCI   15
#endif

/* Ioctls */
#define HCIUARTSETPROTO     _IOW('U', 200, int)
#define HCIUARTGETPROTO     _IOR('U', 201, int)
#define HCIUARTGETDEVICE    _IOR('U', 202, int)
#define HCIUARTSETFLAGS     _IOW('U', 203, int)
#define HCIUARTGETFLAGS     _IOR('U', 204, int)

/* UART protocols */
#define HCI_UART_MAX_PROTO  6

#define HCI_UART_H4 0
#define HCI_UART_BCSP   1
#define HCI_UART_3WIRE  2
#define HCI_UART_H4DS   3
#define HCI_UART_LL 4
#define HCI_UART_ATH3K  5

#define HCI_UART_RAW_DEVICE 0
#define HCI_UART_RESET_ON_INIT  1
#define HCI_UART_CREATE_AMP 2
#define HCI_UART_INIT_PENDING   3

struct hci_uart;

struct hci_uart_proto {
    unsigned int id;
    int (*open)(struct hci_uart *hu);
    int (*close)(struct hci_uart *hu);
    int (*flush)(struct hci_uart *hu);
    int (*recv)(struct hci_uart *hu, void *data, int len);
    int (*enqueue)(struct hci_uart *hu, struct sk_buff *skb);
    struct sk_buff *(*dequeue)(struct hci_uart *hu);
};

struct hci_uart {
    struct tty_struct   *tty;
    struct hci_dev      *hdev;
    unsigned long       flags;
    unsigned long       hdev_flags;

    struct work_struct  init_ready;

    struct hci_uart_proto   *proto;
    void            *priv;

    struct sk_buff      *tx_skb;
    unsigned long       tx_state;
    spinlock_t      rx_lock;
};

/* HCI_UART proto flag bits */
#define HCI_UART_PROTO_SET  0
#define HCI_UART_REGISTERED 1

/* TX states  */
#define HCI_UART_SENDING    1
#define HCI_UART_TX_WAKEUP  2

int hci_uart_register_proto(struct hci_uart_proto *p);
int hci_uart_unregister_proto(struct hci_uart_proto *p);
int hci_uart_tx_wakeup(struct hci_uart *hu);
int hci_uart_init_ready(struct hci_uart *hu);

#ifdef CONFIG_BT_HCIUART_H4
int h4_init(void);
int h4_deinit(void);
#endif

#ifdef CONFIG_BT_HCIUART_BCSP
int bcsp_init(void);
int bcsp_deinit(void);
#endif

#ifdef CONFIG_BT_HCIUART_LL
int ll_init(void);
int ll_deinit(void);
#endif

#ifdef CONFIG_BT_HCIUART_ATH3K
int ath_init(void);
int ath_deinit(void);
#endif

#ifdef CONFIG_BT_HCIUART_3WIRE
int h5_init(void);
int h5_deinit(void);
#endif