/* LUFA Library Copyright (C) Dean Camera, 2010. dean [at] fourwalledcubicle [dot] com www.fourwalledcubicle.com */ /* Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com) Permission to use, copy, modify, distribute, and sell this software and its documentation for any purpose is hereby granted without fee, provided that the above copyright notice appear in all copies and that both that the copyright notice and this permission notice and warranty disclaimer appear in supporting documentation, and that the name of the author not be used in advertising or publicity pertaining to distribution of the software without specific, written prior permission. The author disclaim all warranties with regard to this software, including all implied warranties of merchantability and fitness. In no event shall the author be liable for any special, indirect or consequential damages or any damages whatsoever resulting from loss of use, data or profits, whether in an action of contract, negligence or other tortious action, arising out of or in connection with the use or performance of this software. */ #ifndef _SERVICEDISCOVERYPROTOCOL_H_ #define _SERVICEDISCOVERYPROTOCOL_H_ /* Includes: */ #include #include #include #include #include #include #include "BluetoothStack.h" /* Macros: */ #define BT_SDP_DEBUG(l, s, ...) do { if (SDP_DEBUG_LEVEL >= l) printf_P(PSTR("(SDP) " s "\r\n"), ##__VA_ARGS__); } while (0) #define SDP_DEBUG_LEVEL 2 #define SDP_PDU_ERRORRESPONSE 0x01 #define SDP_PDU_SERVICESEARCHREQUEST 0x02 #define SDP_PDU_SERVICESEARCHRESPONSE 0x03 #define SDP_PDU_SERVICEATTRIBUTEREQUEST 0x04 #define SDP_PDU_SERVICEATTRIBUTERESPONSE 0x05 #define SDP_PDU_SERVICESEARCHATTRIBUTEREQUEST 0x06 #define SDP_PDU_SERVICESEARCHATTRIBUTERESPONSE 0x07 #define SDP_ATTRIBUTE_NAME 0x0000 #define SDP_ATTRIBUTE_DESCRIPTION 0x0001 #define SDP_ATTRIBUTE_PROVIDER 0x0002 #define SDP_ATTRIBUTE_AVAILABILITY 0x0008 #define UUID_SIZE_BYTES 16 #define BASE_96BIT_UUID 0xFB, 0x34, 0x9B, 0x5F, 0x80, 0x00, 0x00, 0x80, 0x00, 0x10, 0x00, 0x00 /** Defines a service attribute as a string of characters. * * \param name Name of the attribute (used to identify the attribute variable only) * \param string String of characters to associate with the attribute */ #define SERVICE_ATTRIBUTE_TEXT(name, string) SERVICE_ATTRIBUTE_LEN8(name, SDP_DATATYPE_String, sizeof(string), string) /** Defines a service attribute with a contents that can fit into an 8-bit integer. * * \param name Name of the attribute (used to identify the attribute variable only) * \param type Type of attribute contents, a value from the \ref ServiceDiscovery_DataTypes_t enum * \param size Size of the data, in bytes * \param ... Data to associate with the attribute */ #define SERVICE_ATTRIBUTE_LEN8(name, type, size, ...) const ServiceAttributeData8Bit_t name PROGMEM = \ {.Header = (type | 5), .Size = size, .Data = __VA_ARGS__} /** Defines a service attribute with a contents that can fit into an 16-bit integer. * * \param name Name of the attribute (used to identify the attribute variable only) * \param type Type of attribute contents, a value from the \ref ServiceDiscovery_DataTypes_t enum * \param size Size of the data, in bytes * \param ... Data to associate with the attribute */ #define SERVICE_ATTRIBUTE_LEN16(name, type, size, ...) const ServiceAttributeData16Bit_t name PROGMEM = \ {.Header = (type | 6), .Size = size, .Data = __VA_ARGS__} /** Defines a service attribute with a contents that can fit into an 32-bit integer. * * \param name Name of the attribute (used to identify the attribute variable only) * \param type Type of attribute contents, a value from the \ref ServiceDiscovery_DataTypes_t enum * \param size Size of the data, in bytes * \param ... Data to associate with the attribute */ #define SERVICE_ATTRIBUTE_LEN32(name, type, size, ...) const ServiceAttributeData32Bit_t name PROGMEM = \ {.Header = (type | 7), .Size = size, .Data = __VA_ARGS__} /** Terminator for a service attribute table of type \ref ServiceAttributeTable_t. */ #define SERVICE_ATTRIBUTE_TABLE_TERMINATOR {.Data = NULL} /* Enums: */ enum ServiceDiscovery_DataTypes_t { SDP_DATATYPE_Nill = (0 << 3), SDP_DATATYPE_UnsignedInt = (1 << 3), SDP_DATATYPE_SignedInt = (2 << 3), SDP_DATATYPE_UUID = (3 << 3), SDP_DATATYPE_String = (4 << 3), SDP_DATATYPE_Boolean = (5 << 3), SDP_DATATYPE_Sequence = (6 << 3), SDP_DATATYPE_Alternative = (7 << 3), SDP_DATATYPE_URL = (8 << 3), }; /* Type Defines: */ typedef struct { uint8_t PDU; uint16_t TransactionID; uint16_t ParameterLength; } SDP_PDUHeader_t; typedef struct { uint16_t AttributeID; const void* Data; } ServiceAttributeTable_t; typedef struct { uint8_t UUID[16]; const void* AttributeTable; } ServiceTable_t; typedef struct { uint8_t Header; uint32_t Size; uint8_t Data[]; } ServiceAttributeData32Bit_t; typedef struct { uint8_t Header; uint16_t Size; uint8_t Data[]; } ServiceAttributeData16Bit_t; typedef struct { uint8_t Header; uint8_t Size; uint8_t Data[]; } ServiceAttributeData8Bit_t; typedef struct { uint8_t Header; uint8_t Data[]; } ServiceAttributeData_t; /* Inline Functions: */ static inline uint16_t* ServiceDiscovery_AddDataElementHeader(uint8_t** BufferPos, const uint8_t Type) { **BufferPos = (6 | Type); *BufferPos += 1; uint16_t* SizePos = (uint16_t*)*BufferPos; *SizePos = 0; **BufferPos += 2; return SizePos; } static inline uint16_t ServiceDiscovery_Read16BitParameter(const void** AttributeHeader) { uint16_t ParamValue = *((uint16_t*)*AttributeHeader); *AttributeHeader += sizeof(uint16_t); return ParamValue; } /* Function Prototypes: */ void ServiceDiscovery_ProcessPacket(void* Data, Bluetooth_Channel_t* Channel); #if defined(INCLUDE_FROM_SERVICEDISCOVERYPROTOCOL_C) static void ServiceDiscovery_ProcessServiceSearch(SDP_PDUHeader_t* SDPHeader, Bluetooth_Channel_t* Channel); static void ServiceDiscovery_ProcessServiceAttribute(SDP_PDUHeader_t* SDPHeader, Bluetooth_Channel_t* Channel); static void ServiceDiscovery_ProcessServiceSearchAttribute(SDP_PDUHeader_t* SDPHeader, Bluetooth_Channel_t* Channel); static uint8_t ServiceDiscovery_ProcessAttributes(uint8_t UUIDList[][UUID_SIZE_BYTES], const uint8_t TotalUUIDs, uint8_t* ResponseBuffer, uint8_t MaxResponseSize, const void** CurrentParameter); static uint8_t ServiceDiscovery_GetAttribute(uint8_t UUIDList[][UUID_SIZE_BYTES], const uint8_t TotalUUIDs, const uint32_t Attribute, uint8_t** DataBuffer, uint8_t BufferLen); static uint8_t ServiceDiscovery_GetUUIDList(uint8_t UUIDList[][UUID_SIZE_BYTES], const void** CurrentParameter); static uint32_t ServiceDiscovery_GetDataElementSize(const void** AttributeHeader, uint8_t* ElementHeaderSize); #endif #endif