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