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https://github.com/libretro/RetroArch
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128 lines
4.5 KiB
C
128 lines
4.5 KiB
C
/*
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* Copyright (C) 2009 by Matthias Ringwald
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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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*
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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. Neither the name of the copyright holders nor the names of
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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 MATTHIAS RINGWALD AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MATTHIAS
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* RINGWALD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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* THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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/*
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* utils.h
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*
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* General utility functions
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*
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* Created by Matthias Ringwald on 7/23/09.
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*/
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#ifndef _BT_UTILS_H
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#define _BT_UTILS_H
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#if defined __cplusplus
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extern "C" {
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#endif
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#include <stdint.h>
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/* Connection handle type. */
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typedef uint16_t hci_con_handle_t;
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/* Length of a Bluetooth device address. */
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#define BD_ADDR_LEN 6
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typedef uint8_t bd_addr_t[BD_ADDR_LEN];
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/* The link key type. */
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#define LINK_KEY_LEN 16
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typedef uint8_t link_key_t[LINK_KEY_LEN];
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/* The device name type. */
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#define DEVICE_NAME_LEN 248
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typedef uint8_t device_name_t[DEVICE_NAME_LEN+1];
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/* helper for BT little endian format. */
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#define READ_BT_16( buffer, pos) ( ((uint16_t) buffer[pos]) | (((uint16_t)buffer[pos+1]) << 8))
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#define READ_BT_24( buffer, pos) ( ((uint32_t) buffer[pos]) | (((uint32_t)buffer[pos+1]) << 8) | (((uint32_t)buffer[pos+2]) << 16))
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#define READ_BT_32( buffer, pos) ( ((uint32_t) buffer[pos]) | (((uint32_t)buffer[pos+1]) << 8) | (((uint32_t)buffer[pos+2]) << 16) | (((uint32_t) buffer[pos+3])) << 24)
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/* helper for SDP big endian format. */
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#define READ_NET_16( buffer, pos) ( ((uint16_t) buffer[pos+1]) | (((uint16_t)buffer[pos ]) << 8))
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#define READ_NET_32( buffer, pos) ( ((uint32_t) buffer[pos+3]) | (((uint32_t)buffer[pos+2]) << 8) | (((uint32_t)buffer[pos+1]) << 16) | (((uint32_t) buffer[pos])) << 24)
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/* HCI CMD OGF/OCF. */
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#define READ_CMD_OGF(buffer) (buffer[1] >> 2)
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#define READ_CMD_OCF(buffer) ((buffer[1] & 0x03) << 8 | buffer[0])
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/* Check if command complete event for given command. */
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#define COMMAND_COMPLETE_EVENT(event,cmd) ( event[0] == HCI_EVENT_COMMAND_COMPLETE && READ_BT_16(event,3) == cmd.opcode)
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#define COMMAND_STATUS_EVENT(event,cmd) ( event[0] == HCI_EVENT_COMMAND_STATUS && READ_BT_16(event,4) == cmd.opcode)
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/* Code+Len=2, Pkts+Opcode=3; total=5 */
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#define OFFSET_OF_DATA_IN_COMMAND_COMPLETE 5
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/* ACL Packet. */
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#define READ_ACL_CONNECTION_HANDLE( buffer ) ( READ_BT_16(buffer,0) & 0x0fff)
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#define READ_ACL_FLAGS( buffer ) ( buffer[1] >> 4 )
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#define READ_ACL_LENGTH( buffer ) (READ_BT_16(buffer, 2))
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/* L2CAP Packet. */
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#define READ_L2CAP_LENGTH(buffer) ( READ_BT_16(buffer, 4))
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#define READ_L2CAP_CHANNEL_ID(buffer) ( READ_BT_16(buffer, 6))
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void bt_store_16(uint8_t *buffer, uint16_t pos, uint16_t value);
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void bt_store_32(uint8_t *buffer, uint16_t pos, uint32_t value);
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void bt_flip_addr(bd_addr_t dest, bd_addr_t src);
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void net_store_16(uint8_t *buffer, uint16_t pos, uint16_t value);
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void net_store_32(uint8_t *buffer, uint16_t pos, uint32_t value);
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void hexdump(void *data, int size);
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void printUUID(uint8_t *uuid);
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/* Deprecated - please use more convenient bd_addr_to_str. */
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void print_bd_addr( bd_addr_t addr);
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char * bd_addr_to_str(bd_addr_t addr);
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int sscan_bd_addr(uint8_t * addr_string, bd_addr_t addr);
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uint8_t crc8_check(uint8_t *data, uint16_t len, uint8_t check_sum);
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uint8_t crc8_calc(uint8_t *data, uint16_t len);
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#define BD_ADDR_CMP(a,b) memcmp(a,b, BD_ADDR_LEN)
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#define BD_ADDR_COPY(dest,src) memcpy(dest,src,BD_ADDR_LEN)
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#if defined __cplusplus
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}
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#endif
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#endif
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