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#define HCIUARTSETFLAGS         _IOW('U', 203, int)
  35#define HCIUARTGETFLAGS         _IOR('U', 204, int)
  36
  37/* UART protocols */
  38#define HCI_UART_MAX_PROTO      6
  39
  40#define HCI_UART_H4     0
  41#define HCI_UART_BCSP   1
  42#define HCI_UART_3WIRE  2
  43#define HCI_UART_H4DS   3
  44#define HCI_UART_LL     4
  45#define HCI_UART_ATH3K  5
  46
  47#define HCI_UART_RAW_DEVICE     0
  48
  49struct hci_uart;
  50
  51struct hci_uart_proto {
  52        unsigned int id;
  53        int (*open)(struct hci_uart *hu);
  54        int (*close)(struct hci_uart *hu);
  55        int (*flush)(struct hci_uart *hu);
  56        int (*recv)(struct hci_uart *hu, void *data, int len);
  57        int (*enqueue)(struct hci_uart *hu, struct sk_buff *skb);
  58        struct sk_buff *(*dequeue)(struct hci_uart *hu);
  59};
  60
  61struct hci_uart {
  62        struct tty_struct       *tty;
  63        struct hci_dev          *hdev;
  64        unsigned long           flags;
  65        unsigned long           hdev_flags;
  66
  67        struct hci_uart_proto   *proto;
  68        void                    *priv;
  69
  70        struct sk_buff          *tx_skb;
  71        unsigned long           tx_state;
  72        spinlock_t              rx_lock;
  73};
  74
  75/* HCI_UART proto flag bits */
  76#define HCI_UART_PROTO_SET      0
  77
  78/* TX states  */
  79#define HCI_UART_SENDING        1
  80#define HCI_UART_TX_WAKEUP      2
  81
  82int hci_uart_register_proto(struct hci_uart_proto *p);
  83int hci_uart_unregister_proto(struct hci_uart_proto *p);
  84int hci_uart_tx_wakeup(struct hci_uart *hu);
  85
  86#ifdef CONFIG_BT_HCIUART_H4
  87int h4_init(void);
  88int h4_deinit(void);
  89#endif
  90
  91#ifdef CONFIG_BT_HCIUART_BCSP
  92int bcsp_init(void);
  93int bcsp_deinit(void);
  94#endif
  95
  96#ifdef CONFIG_BT_HCIUART_LL
  97int ll_init(void);
  98int ll_deinit(void);
  99#endif
 100
 101#ifdef CONFIG_BT_HCIUART_ATH3K
 102int ath_init(void);
 103int ath_deinit(void);
 104#endif
 105