diff options
Diffstat (limited to 'Demos/Host/Incomplete/BluetoothHost/Lib/SDP.h')
| -rw-r--r-- | Demos/Host/Incomplete/BluetoothHost/Lib/SDP.h | 239 |
1 files changed, 239 insertions, 0 deletions
diff --git a/Demos/Host/Incomplete/BluetoothHost/Lib/SDP.h b/Demos/Host/Incomplete/BluetoothHost/Lib/SDP.h new file mode 100644 index 000000000..18592ec1c --- /dev/null +++ b/Demos/Host/Incomplete/BluetoothHost/Lib/SDP.h @@ -0,0 +1,239 @@ +/* + 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. +*/ + +/** \file + * + * Header file for ServiceDiscoveryProtocol.c. + */ + +#ifndef _SERVICEDISCOVERYPROTOCOL_H_ +#define _SERVICEDISCOVERYPROTOCOL_H_ + + /* Includes: */ + #include <avr/io.h> + #include <avr/pgmspace.h> + #include <string.h> + #include <stdbool.h> + #include <stdio.h> + + #include <LUFA/Common/Common.h> + #include <LUFA/Drivers/Peripheral/SerialStream.h> + + #include "BluetoothStack.h" + #include "SDPServices.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 0 + + #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 + + /** Convenience macro - read a pointer out of PROGMEM space. + * + * \param[in] x Address of the pointer to read + * + * \return Pointer retrieved from PROGMEM space + */ + #define pgm_read_ptr(x) (void*)pgm_read_word(x) + + /* Enums: */ + /** Data sizes for SDP Data Element headers, to indicate the size of the data contained in the element. When creating + * a Data Element, a value from this enum should be ORed with a value from the \ref ServiceDiscovery_DataTypes_t enum. + */ + enum ServiceDiscovery_DataSizes_t + { + SDP_DATASIZE_8Bit = 0, /**< Contained data is 8 bits in length. */ + SDP_DATASIZE_16Bit = 1, /**< Contained data is 16 bits in length. */ + SDP_DATASIZE_32Bit = 2, /**< Contained data is 32 bits in length. */ + SDP_DATASIZE_64Bit = 3, /**< Contained data is 64 bits in length. */ + SDP_DATASIZE_128Bit = 4, /**< Contained data is 128 bits in length. */ + SDP_DATASIZE_Variable8Bit = 5, /**< Contained data is encoded in an 8 bit size integer following the header. */ + SDP_DATASIZE_Variable16Bit = 6, /**< Contained data is encoded in an 16 bit size integer following the header. */ + SDP_DATASIZE_Variable32Bit = 7, /**< Contained data is encoded in an 32 bit size integer following the header. */ + }; + + /** Data types for SDP Data Element headers, to indicate the type of data contained in the element. When creating + * a Data Element, a value from this enum should be ORed with a value from the \ref ServiceDiscovery_DataSizes_t enum. + */ + enum ServiceDiscovery_DataTypes_t + { + SDP_DATATYPE_Nill = (0 << 3), /**< Indicates the container data is a Nill (null) type. */ + SDP_DATATYPE_UnsignedInt = (1 << 3), /**< Indicates the container data is an unsigned integer. */ + SDP_DATATYPE_SignedInt = (2 << 3), /**< Indicates the container data is a signed integer. */ + SDP_DATATYPE_UUID = (3 << 3), /**< Indicates the container data is a UUID. */ + SDP_DATATYPE_String = (4 << 3), /**< Indicates the container data is an ASCII string. */ + SDP_DATATYPE_Boolean = (5 << 3), /**< Indicates the container data is a logical boolean. */ + SDP_DATATYPE_Sequence = (6 << 3), /**< Indicates the container data is a sequence of containers. */ + SDP_DATATYPE_Alternative = (7 << 3), /**< Indicates the container data is a sequence of alternative containers. */ + SDP_DATATYPE_URL = (8 << 3), /**< Indicates the container data is a URL. */ + }; + + /* Type Defines: */ + /** Header for all SPD transaction packets. This header is sent at the start of all SDP packets sent to or from a SDP + * server. + */ + typedef struct + { + uint8_t PDU; /**< SDP packet type, a SDP_PDU_* mask value */ + uint16_t TransactionID; /**< Unique transaction ID number to associate requests and responses */ + uint16_t ParameterLength; /**< Length of the data following the SDP header */ + } SDP_PDUHeader_t; + + /* Inline Functions: */ + /** Writes 8 bits of raw data to the given buffer, incrementing the buffer position afterwards. + * + * \param[in, out] BufferPos Current position in the buffer where the data is to be written to + * \param[in] Data Data to write to the buffer + */ + static inline void SDP_WriteData8(void** BufferPos, uint8_t Data) + { + *((uint8_t*)*BufferPos) = Data; + *BufferPos += sizeof(uint8_t); + } + + /** Writes 16 bits of raw data to the given buffer, incrementing the buffer position afterwards. + * + * \param[in, out] BufferPos Current position in the buffer where the data is to be written to + * \param[in] Data Data to write to the buffer + */ + static inline void SDP_WriteData16(void** BufferPos, uint16_t Data) + { + *((uint16_t*)*BufferPos) = SwapEndian_16(Data); + *BufferPos += sizeof(uint16_t); + } + + /** Writes 32 bits of raw data to the given buffer, incrementing the buffer position afterwards. + * + * \param[in, out] BufferPos Current position in the buffer where the data is to be written to + * \param[in] Data Data to write to the buffer + */ + static inline void SDP_WriteData32(void** BufferPos, uint32_t Data) + { + *((uint32_t*)*BufferPos) = SwapEndian_32(Data); + *BufferPos += sizeof(uint32_t); + } + + /** Reads 8 bits of raw data frpm the given buffer, incrementing the buffer position afterwards. + * + * \param[in, out] BufferPos Current position in the buffer where the data is to be read from + * + * \return Data read from the buffer + */ + static inline uint8_t SDP_ReadData8(const void** BufferPos) + { + uint8_t Data = *((uint8_t*)*BufferPos); + *BufferPos += sizeof(uint8_t); + + return Data; + } + + /** Reads 16 bits of raw data frpm the given buffer, incrementing the buffer position afterwards. + * + * \param[in, out] BufferPos Current position in the buffer where the data is to be read from + * + * \return Data read from the buffer + */ + static inline uint16_t SDP_ReadData16(const void** BufferPos) + { + uint16_t Data = SwapEndian_16(*((uint16_t*)*BufferPos)); + *BufferPos += sizeof(uint16_t); + + return Data; + } + + /** Reads 32 bits of raw data frpm the given buffer, incrementing the buffer position afterwards. + * + * \param[in, out] BufferPos Current position in the buffer where the data is to be read from + * + * \return Data read from the buffer + */ + static inline uint32_t SDP_ReadData32(const void** BufferPos) + { + uint32_t Data = SwapEndian_32(*((uint32_t*)*BufferPos)); + *BufferPos += sizeof(uint32_t); + + return Data; + } + + /** Adds a new Data Element Sequence container with a 16-bit size header to the buffer. The buffer + * pointer's position is advanced past the added header once the element has been added. The returned + * size header value is pre-zeroed out so that it can be incremented as data is placed into the Data + * Element Sequence container. + * + * The total added size of the container header is three bytes, regardless of the size of its contents + * as long as the contents' size in bytes fits into a 16-bit integer. + * + * \param[in, out] BufferPos Pointer to a buffer where the container header is to be placed + * + * \return Pointer to the 16-bit size value of the contaner header, which has been pre-zeroed + */ + static inline uint16_t* SDP_AddSequence16(void** BufferPos) + { + SDP_WriteData8(BufferPos, (SDP_DATASIZE_Variable16Bit | SDP_DATATYPE_Sequence)); + + uint16_t* SizePos = *BufferPos; + SDP_WriteData16(BufferPos, 0); + + return SizePos; + } + + /* Function Prototypes: */ + void SDP_Initialize(void); + void SDP_ProcessPacket(void* Data, Bluetooth_Channel_t* const Channel); + + #if defined(INCLUDE_FROM_SERVICEDISCOVERYPROTOCOL_C) + static void SDP_ProcessServiceSearch(const SDP_PDUHeader_t* const SDPHeader, Bluetooth_Channel_t* const Channel); + static void SDP_ProcessServiceAttribute(const SDP_PDUHeader_t* const SDPHeader, Bluetooth_Channel_t* const Channel); + static void SDP_ProcessServiceSearchAttribute(const SDP_PDUHeader_t* const SDPHeader, Bluetooth_Channel_t* const Channel); + + static uint16_t SDP_AddListedAttributesToResponse(const ServiceAttributeTable_t* AttributeTable, uint16_t AttributeList[][2], + const uint8_t TotalAttributes, void** const BufferPos); + static uint16_t SDP_AddAttributeToResponse(const uint16_t AttributeID, const void* AttributeValue, void** ResponseBuffer); + static void* SDP_GetAttributeValue(const ServiceAttributeTable_t* AttributeTable, const uint16_t AttributeID); + + static bool SDP_SearchServiceTable(uint8_t UUIDList[][UUID_SIZE_BYTES], const uint8_t TotalUUIDs, + const ServiceAttributeTable_t* CurrAttributeTable); + static void SDP_CheckUUIDMatch(uint8_t UUIDList[][UUID_SIZE_BYTES], const uint8_t TotalUUIDs, bool UUIDMatch[], + const void* CurrAttribute); + + static uint8_t SDP_GetAttributeList(uint16_t AttributeList[][2], const void** const CurrentParameter); + static uint8_t SDP_GetUUIDList(uint8_t UUIDList[][UUID_SIZE_BYTES], const void** const CurrentParameter); + + static uint32_t SDP_GetLocalAttributeContainerSize(const void* const AttributeData, uint8_t* const HeaderSize); + static uint32_t SDP_GetDataElementSize(const void** const AttributeHeader, uint8_t* const ElementHeaderSize); + #endif + +#endif |