drivers/bluetooth/hci_uart.h

   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 #define HCI_UART_RESET_ON_INIT  1
  49 #define HCI_UART_CREATE_AMP     2
  50 #define HCI_UART_INIT_PENDING   3
  51
  52 struct hci_uart;
  53
  54 struct hci_uart_proto {
  55         unsigned int id;
  56         int (*open)(struct hci_uart *hu);
  57         int (*close)(struct hci_uart *hu);
  58         int (*flush)(struct hci_uart *hu);
  59         int (*recv)(struct hci_uart *hu, void *data, int len);
  60         int (*enqueue)(struct hci_uart *hu, struct sk_buff *skb);
  61         struct sk_buff *(*dequeue)(struct hci_uart *hu);
  62 };
  63
  64 struct hci_uart {
  65         struct tty_struct       *tty;
  66         struct hci_dev          *hdev;
  67         unsigned long           flags;
  68         unsigned long           hdev_flags;
  69
  70         struct work_struct      init_ready;
  71         struct work_struct      write_work;
  72
  73         struct hci_uart_proto   *proto;
  74         void                    *priv;
  75
  76         struct sk_buff          *tx_skb;
  77         unsigned long           tx_state;
  78         spinlock_t              rx_lock;
  79 };
  80
  81 /* HCI_UART proto flag bits */
  82 #define HCI_UART_PROTO_SET      0
  83 #define HCI_UART_REGISTERED     1
  84
  85 /* TX states  */
  86 #define HCI_UART_SENDING        1
  87 #define HCI_UART_TX_WAKEUP      2
  88
  89 int hci_uart_register_proto(struct hci_uart_proto *p);
  90 int hci_uart_unregister_proto(struct hci_uart_proto *p);
  91 int hci_uart_tx_wakeup(struct hci_uart *hu);
  92 int hci_uart_init_ready(struct hci_uart *hu);
  93
  94 #ifdef CONFIG_BT_HCIUART_H4
  95 int h4_init(void);
  96 int h4_deinit(void);
  97 #endif
  98
  99 #ifdef CONFIG_BT_HCIUART_BCSP
 100 int bcsp_init(void);
 101 int bcsp_deinit(void);
 102 #endif
 103
 104 #ifdef CONFIG_BT_HCIUART_LL
 105 int ll_init(void);
 106 int ll_deinit(void);
 107 #endif
 108
 109 #ifdef CONFIG_BT_HCIUART_ATH3K
 110 int ath_init(void);
 111 int ath_deinit(void);
 112 #endif
 113
 114 #ifdef CONFIG_BT_HCIUART_3WIRE
 115 int h5_init(void);
 116 int h5_deinit(void);
 117 #endif