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159 lines
6.1 KiB
159 lines
6.1 KiB
/*
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LUFA Library
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Copyright (C) Dean Camera, 2010.
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dean [at] fourwalledcubicle [dot] com
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www.fourwalledcubicle.com
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*/
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/*
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Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com)
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Permission to use, copy, modify, distribute, and sell this
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software and its documentation for any purpose is hereby granted
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without fee, provided that the above copyright notice appear in
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all copies and that both that the copyright notice and this
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permission notice and warranty disclaimer appear in supporting
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documentation, and that the name of the author not be used in
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advertising or publicity pertaining to distribution of the
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software without specific, written prior permission.
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The author disclaim all warranties with regard to this
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software, including all implied warranties of merchantability
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and fitness. In no event shall the author be liable for any
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special, indirect or consequential damages or any damages
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whatsoever resulting from loss of use, data or profits, whether
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in an action of contract, negligence or other tortious action,
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arising out of or in connection with the use or performance of
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this software.
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*/
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#ifndef _SERVICEDISCOVERYPROTOCOL_H_
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#define _SERVICEDISCOVERYPROTOCOL_H_
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/* Includes: */
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#include <avr/io.h>
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#include <string.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <LUFA/Common/Common.h>
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#include <LUFA/Drivers/Peripheral/SerialStream.h>
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#include "BluetoothStack.h"
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/* Macros: */
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#define BT_SDP_DEBUG(l, s, ...) do { if (SDP_DEBUG_LEVEL >= l) printf_P(PSTR("(SDP) " s "\r\n"), ##__VA_ARGS__); } while (0)
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#define SDP_DEBUG_LEVEL 2
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#define SDP_PDU_ERRORRESPONSE 0x01
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#define SDP_PDU_SERVICESEARCHREQUEST 0x02
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#define SDP_PDU_SERVICESEARCHRESPONSE 0x03
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#define SDP_PDU_SERVICEATTRIBUTEREQUEST 0x04
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#define SDP_PDU_SERVICEATTRIBUTERESPONSE 0x05
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#define SDP_PDU_SERVICESEARCHATTRIBUTEREQUEST 0x06
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#define SDP_PDU_SERVICESEARCHATTRIBUTERESPONSE 0x07
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#define SDP_ATTRIBUTE_ID_SERVICERECORDHANDLE 0x0000
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#define SDP_ATTRIBUTE_ID_SERVICECLASSIDS 0x0001
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#define SDP_ATTRIBUTE_ID_LANGIDOFFSET 0x0006
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#define SDP_ATTRIBUTE_ID_AVAILABILITY 0x0008
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#define SDP_ATTRIBUTE_ID_NAME (0x0000 + SDP_ATTRIBUTE_LANGOFFSET)
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#define SDP_ATTRIBUTE_ID_DESCRIPTION (0x0001 + SDP_ATTRIBUTE_LANGOFFSET)
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/** Attribute ID offset for localised language string attributes. */
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#define SDP_ATTRIBUTE_LANGOFFSET 0x0100
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/** Size of a full 128 bit UUID, in bytes. */
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#define UUID_SIZE_BYTES 16
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/** First 96 bits common to all standadized Bluetooth services. */
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#define BASE_96BIT_UUID 0xFB, 0x34, 0x9B, 0x5F, 0x80, 0x00, 0x00, 0x80, 0x00, 0x10, 0x00, 0x00
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/** Terminator for a service attribute table of type \ref ServiceAttributeTable_t. */
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#define SERVICE_ATTRIBUTE_TABLE_TERMINATOR {.Data = NULL}
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/* Enums: */
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enum ServiceDiscovery_DataTypes_t
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{
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SDP_DATATYPE_Nill = (0 << 3),
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SDP_DATATYPE_UnsignedInt = (1 << 3),
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SDP_DATATYPE_SignedInt = (2 << 3),
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SDP_DATATYPE_UUID = (3 << 3),
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SDP_DATATYPE_String = (4 << 3),
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SDP_DATATYPE_Boolean = (5 << 3),
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SDP_DATATYPE_Sequence = (6 << 3),
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SDP_DATATYPE_Alternative = (7 << 3),
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SDP_DATATYPE_URL = (8 << 3),
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};
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/* Type Defines: */
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typedef struct
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{
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uint8_t PDU;
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uint16_t TransactionID;
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uint16_t ParameterLength;
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} SDP_PDUHeader_t;
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typedef struct
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{
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uint16_t AttributeID;
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const void* Data;
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} ServiceAttributeTable_t;
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typedef struct
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{
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uint8_t UUID[16];
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const void* AttributeTable;
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} ServiceTable_t;
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typedef struct
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{
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uint8_t Header;
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uint8_t Size;
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uint16_t UUID[UUID_SIZE_BYTES];
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} ClassUUID_t;
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/* Inline Functions: */
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/** Adds a new Data Element container of the given type with a 16-bit size header to the buffer. The
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* buffer pointer's position is advanced past the added header once the element has been added. The
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* returned size header value is pre-zeroed out so that it can be incremented as data is placed into
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* the Data Element container.
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*
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* The total added size of the container header is three bytes, regardless of the size of its contents
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* as long as the contents' size in bytes fits into a 16-bit integer.
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*
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* \param[in, out] BufferPos Pointer to a buffer where the container header is to be placed
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* \param[in] Type Type of data the container is to store, a value from the \ref ServiceDiscovery_DataTypes_t enum
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*
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* \return Pointer to the 16-bit size value of the contaner header, which has been pre-zeroed
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*/
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static inline uint16_t* SDP_AddDataElementHeader16(uint8_t** BufferPos, const uint8_t Type)
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{
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**BufferPos = (6 | Type);
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uint16_t* SizePos = (uint16_t*)*(BufferPos + 1);
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*SizePos = 0;
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*BufferPos += 3;
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return SizePos;
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}
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/* Function Prototypes: */
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void SDP_ProcessPacket(void* Data, Bluetooth_Channel_t* Channel);
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#if defined(INCLUDE_FROM_SERVICEDISCOVERYPROTOCOL_C)
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static void SDP_ProcessServiceSearch(const SDP_PDUHeader_t* const SDPHeader, Bluetooth_Channel_t* const Channel);
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static void SDP_ProcessServiceAttribute(const SDP_PDUHeader_t* const SDPHeader, Bluetooth_Channel_t* const Channel);
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static void SDP_ProcessServiceSearchAttribute(const SDP_PDUHeader_t* const SDPHeader, Bluetooth_Channel_t* const Channel);
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static void* SDP_GetAttributeValue(const ServiceAttributeTable_t* AttributeTable, const uint16_t AttributeID);
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static ServiceAttributeTable_t* SDP_GetAttributeTable(const uint8_t* const UUID);
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static uint8_t SDP_GetAttributeList(uint16_t AttributeList[][2], const void** const CurrentParameter);
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static uint8_t SDP_GetUUIDList(uint8_t UUIDList[][UUID_SIZE_BYTES], const void** const CurrentParameter);
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static uint32_t SDP_GetLocalAttributeContainerSize(const void* const AttributeData);
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static uint32_t SDP_GetDataElementSize(const void** const AttributeHeader, uint8_t* const ElementHeaderSize);
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#endif
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#endif
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