FreeBSD/Linux Kernel Cross Reference
sys/dev/bluetooth/bluetooth.h

     /*      $NetBSD: bluetooth.h,v 1.5 2004/01/04 05:47:43 dsainty Exp $    */
     
     /*
      * Copyright (c) 2002, 2003 The NetBSD Foundation, Inc.
      * All rights reserved.
      *
      * This code is derived from software contributed to The NetBSD Foundation
      * by Lennart Augustsson (lennart@augustsson.net) and
      * David Sainty (David.Sainty@dtsp.co.nz).
     *
     * Redistribution and use in source and binary forms, with or without
     * modification, are permitted provided that the following conditions
     * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     * 3. All advertising materials mentioning features or use of this software
     *    must display the following acknowledgement:
     *        This product includes software developed by the NetBSD
     *        Foundation, Inc. and its contributors.
     * 4. Neither the name of The NetBSD Foundation nor the names of its
     *    contributors may be used to endorse or promote products derived
     *    from this software without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     * POSSIBILITY OF SUCH DAMAGE.
     */
    
    struct btframe_buffer;
    
    struct btframe_channel {
            /*
             * Allocate and transmit a buffer for transmission to
             * Bluetooth device.
             */
    
            /*
             * bt_alloc() allocates a buffer suitable for passing to
             * bt_send() on this channel.  The required buffer size should
             * be passed in, and the method returns a pointer to the
             * buffer space, and a handle for the buffer to be passed to
             * bt_send().  Returns NULL on error (invalid size, or
             * allocation error).
             */
            u_int8_t* (*bt_alloc)(void*, size_t, struct btframe_buffer **);
    
            /*
             * bt_send() sends the data stored in the given buffer with
             * the given size.  Returns zero on success, or a standard
             * error number on failure.
             */
            int (*bt_send)(void*, struct btframe_buffer *, size_t);
    };
    
    struct btframe_methods {
            int (*bt_open)(void *h, int flag, int mode, struct proc *p);
            int (*bt_close)(void *h, int flag, int mode, struct proc *p);
    
            /* HCI channels */
            struct btframe_channel bt_control;
            struct btframe_channel bt_acldata;
            struct btframe_channel bt_scodata;
    
            /* Raise SPL to a level that will prevent callbacks */
            int (*bt_splraise)(void);
    };
    
    struct btframe_callback_methods {
            /* Received data */
            void (*bt_recveventdata)(void *, u_int8_t *, size_t);
            void (*bt_recvacldata)(void *, u_int8_t *, size_t);
            void (*bt_recvscodata)(void *, u_int8_t *, size_t);
    };
    
    struct bt_attach_args {
            struct btframe_methods const *bt_methods;
            struct btframe_callback_methods const **bt_cb;
            void *bt_handle;
    };
    
    int bt_print(void *aux, const char *pnp);
    
    #define BTGETW(x) (((u_int8_t const*)(x))[0] | ((u_int8_t const*)(x))[1] << 8)
    
    /* HCI interface constants */
    
    /* Maximum event packet length, including header */
    #define BTHCI_EVENT_MIN_LEN             2
   #define BTHCI_EVENT_MAX_LEN             (0xff + BTHCI_EVENT_MIN_LEN)
   #define BTHCI_EVENT_LEN_OFFT            1
   #define BTHCI_EVENT_LEN_LENGTH          1
   
   /* Maximum command packet length, including header */
   #define BTHCI_COMMAND_MIN_LEN           3
   #define BTHCI_COMMAND_MAX_LEN           (0xff + BTHCI_COMMAND_MIN_LEN)
   #define BTHCI_COMMAND_LEN_OFFT          2
   #define BTHCI_COMMAND_LEN_LENGTH        1
   
   /* Maximum ACL data packet length, including header */
   #define BTHCI_ACL_DATA_MIN_LEN          4
   #define BTHCI_ACL_DATA_MAX_LEN          (0xffff + BTHCI_ACL_DATA_MIN_LEN)
   #define BTHCI_ACL_DATA_LEN_OFFT         2
   #define BTHCI_ACL_DATA_LEN_LENGTH       2
   
   /* HCI consumer interface constants */
   #define BTHCI_PKTID_COMMAND             1
   #define BTHCI_PKTID_ACL_DATA            2
   #define BTHCI_PKTID_SCO_DATA            3
   #define BTHCI_PKTID_EVENT               4

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