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      8
  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 #define HCI_UART_INTEL  6
  47 #define HCI_UART_BCM    7
  48
  49 #define HCI_UART_RAW_DEVICE     0
  50 #define HCI_UART_RESET_ON_INIT  1
  51 #define HCI_UART_CREATE_AMP     2
  52 #define HCI_UART_INIT_PENDING   3
  53 #define HCI_UART_EXT_CONFIG     4
  54 #define HCI_UART_VND_DETECT     5
  55
  56 struct hci_uart;
  57
  58 struct hci_uart_proto {
  59         unsigned int id;
  60         const char *name;
  61         int (*open)(struct hci_uart *hu);
  62         int (*close)(struct hci_uart *hu);
  63         int (*flush)(struct hci_uart *hu);
  64         int (*setup)(struct hci_uart *hu);
  65         int (*recv)(struct hci_uart *hu, const void *data, int len);
  66         int (*enqueue)(struct hci_uart *hu, struct sk_buff *skb);
  67         struct sk_buff *(*dequeue)(struct hci_uart *hu);
  68 };
  69
  70 struct hci_uart {
  71         struct tty_struct       *tty;
  72         struct hci_dev          *hdev;
  73         unsigned long           flags;
  74         unsigned long           hdev_flags;
  75
  76         struct work_struct      init_ready;
  77         struct work_struct      write_work;
  78
  79         const struct hci_uart_proto *proto;
  80         void                    *priv;
  81
  82         struct sk_buff          *tx_skb;
  83         unsigned long           tx_state;
  84         spinlock_t              rx_lock;
  85 };
  86
  87 /* HCI_UART proto flag bits */
  88 #define HCI_UART_PROTO_SET      0
  89 #define HCI_UART_REGISTERED     1
  90
  91 /* TX states  */
  92 #define HCI_UART_SENDING        1
  93 #define HCI_UART_TX_WAKEUP      2
  94
  95 int hci_uart_register_proto(const struct hci_uart_proto *p);
  96 int hci_uart_unregister_proto(const struct hci_uart_proto *p);
  97 int hci_uart_tx_wakeup(struct hci_uart *hu);
  98 int hci_uart_init_ready(struct hci_uart *hu);
  99
 100 #ifdef CONFIG_BT_HCIUART_H4
 101 int h4_init(void);
 102 int h4_deinit(void);
 103
 104 struct h4_recv_pkt {
 105         u8  type;       /* Packet type */
 106         u8  hlen;       /* Header length */
 107         u8  loff;       /* Data length offset in header */
 108         u8  lsize;      /* Data length field size */
 109         u16 maxlen;     /* Max overall packet length */
 110         int (*recv)(struct hci_dev *hdev, struct sk_buff *skb);
 111 };
 112
 113 #define H4_RECV_ACL \
 114         .type = HCI_ACLDATA_PKT, \
 115         .hlen = HCI_ACL_HDR_SIZE, \
 116         .loff = 2, \
 117         .lsize = 2, \
 118         .maxlen = HCI_MAX_FRAME_SIZE \
 119
 120 #define H4_RECV_SCO \
 121         .type = HCI_SCODATA_PKT, \
 122         .hlen = HCI_SCO_HDR_SIZE, \
 123         .loff = 2, \
 124         .lsize = 1, \
 125         .maxlen = HCI_MAX_SCO_SIZE
 126
 127 #define H4_RECV_EVENT \
 128         .type = HCI_EVENT_PKT, \
 129         .hlen = HCI_EVENT_HDR_SIZE, \
 130         .loff = 1, \
 131         .lsize = 1, \
 132         .maxlen = HCI_MAX_EVENT_SIZE
 133
 134 struct sk_buff *h4_recv_buf(struct hci_dev *hdev, struct sk_buff *skb,
 135                             const unsigned char *buffer, int count,
 136                             const struct h4_recv_pkt *pkts, int pkts_count);
 137 #endif
 138
 139 #ifdef CONFIG_BT_HCIUART_BCSP
 140 int bcsp_init(void);
 141 int bcsp_deinit(void);
 142 #endif
 143
 144 #ifdef CONFIG_BT_HCIUART_LL
 145 int ll_init(void);
 146 int ll_deinit(void);
 147 #endif
 148
 149 #ifdef CONFIG_BT_HCIUART_ATH3K
 150 int ath_init(void);
 151 int ath_deinit(void);
 152 #endif
 153
 154 #ifdef CONFIG_BT_HCIUART_3WIRE
 155 int h5_init(void);
 156 int h5_deinit(void);
 157 #endif
 158
 159 #ifdef CONFIG_BT_HCIUART_BCM
 160 int bcm_init(void);
 161 int bcm_deinit(void);
 162 #endif