LXR linux/drivers/bluetooth/hci

   1/*
   2 *
   3 *  Bluetooth HCI UART driver
   4 *
   5 *  Copyright (C) 2000-2001  Qualcomm Incorporated
   6 *  Copyright (C) 2002-2003  Maxim Krasnyansky <maxk@qualcomm.com>
   7 *  Copyright (C) 2004-2005  Marcel Holtmann <marcel@holtmann.org>
   8 *
   9 *
  10 *  This program is free software; you can redistribute it and/or modify
  11 *  it under the terms of the GNU General Public License as published by
  12 *  the Free Software Foundation; either version 2 of the License, or
  13 *  (at your option) any later version.
  14 *
  15 *  This program is distributed in the hope that it will be useful,
  16 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 *  GNU General Public License for more details.
  19 *
  20 *  You should have received a copy of the GNU General Public License
  21 *  along with this program; if not, write to the Free Software
  22 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  23 *
  24 */
  25
  26#ifndef N_HCI
  27#define N_HCI   15
  28#endif
  29
  30/* Ioctls */
  31#define HCIUARTSETPROTO         _IOW('U', 200, int)
  32#define HCIUARTGETPROTO         _IOR('U', 201, int)
  33#define HCIUARTGETDEVICE        _IOR('U', 202, int)
  34
  35/* UART protocols */
  36#define HCI_UART_MAX_PROTO      5
  37
  38#define HCI_UART_H4     0
  39#define HCI_UART_BCSP   1
  40#define HCI_UART_3WIRE  2
  41#define HCI_UART_H4DS   3
  42#define HCI_UART_LL     4
  43
  44struct hci_uart;
  45
  46struct hci_uart_proto {
  47        unsigned int id;
  48        int (*open)(struct hci_uart *hu);
  49        int (*close)(struct hci_uart *hu);
  50        int (*flush)(struct hci_uart *hu);
  51        int (*recv)(struct hci_uart *hu, void *data, int len);
  52        int (*enqueue)(struct hci_uart *hu, struct sk_buff *skb);
  53        struct sk_buff *(*dequeue)(struct hci_uart *hu);
  54};
  55
  56struct hci_uart {
  57        struct tty_struct       *tty;
  58        struct hci_dev          *hdev;
  59        unsigned long           flags;
  60
  61        struct hci_uart_proto   *proto;
  62        void                    *priv;
  63
  64        struct sk_buff          *tx_skb;
  65        unsigned long           tx_state;
  66        spinlock_t              rx_lock;
  67};
  68
  69/* HCI_UART flag bits */
  70#define HCI_UART_PROTO_SET      0
  71
  72/* TX states  */
  73#define HCI_UART_SENDING        1
  74#define HCI_UART_TX_WAKEUP      2
  75
  76int hci_uart_register_proto(struct hci_uart_proto *p);
  77int hci_uart_unregister_proto(struct hci_uart_proto *p);
  78int hci_uart_tx_wakeup(struct hci_uart *hu);
  79
  80#ifdef CONFIG_BT_HCIUART_H4
  81int h4_init(void);
  82int h4_deinit(void);
  83#endif
  84
  85#ifdef CONFIG_BT_HCIUART_BCSP
  86int bcsp_init(void);
  87int bcsp_deinit(void);
  88#endif
  89
  90#ifdef CONFIG_BT_HCIUART_LL
  91int ll_init(void);
  92int ll_deinit(void);
  93#endif
  94